Patent application title: Bladder-Inflating Structure
Inventors:
Chi-Yuan Chang (Fengyuan City, TW)
IPC8 Class: AF04B4302FI
USPC Class:
417472
Class name: Pumps expansible chamber type bellows-type chamber
Publication date: 2008-12-11
Patent application number: 20080304987
ture including a resilient air chamber having a
receiving space which can be reciprocally compressed and released. After
released, the resilient air chamber itself can resiliently restore to its
original state. An inflatable bladder is connected to one side of the
resilient air chamber. An intake valve is disposed on the resilient air
chamber. When the resilient air chamber is compressed and released, the
intake valve only permits external air to one-way flow into the receiving
space. A one-way membrane nozzle is disposed on one side of the resilient
air chamber between the receiving space and the bladder. The one-way
membrane nozzle is composed of two soft thin membranes. The peripheries
of the soft thin membranes are partially fused with each other to define
a fluid passage. The fluid passage has an inlet end extending into the
receiving space and an outlet end extending into the bladder. The one-way
membrane nozzle only permits the fluid to one-way flow from the receiving
space of the resilient air chamber into the bladder to inflate the
bladder.Claims:
1. A bladder-inflating structure comprising:a resilient air chamber having
a receiving space which can be reciprocally compressed and released,
whereby after released, the resilient air chamber itself can resiliently
restore to its original state;an intake valve disposed on the resilient
air chamber, the intake valve only permitting external air to one-way
flow into the receiving space; anda one-way membrane nozzle disposed on
one side of the resilient air chamber, the one-way membrane nozzle having
an internal fluid passage which only permits the fluid to flow from the
receiving space of the resilient air chamber to outer side.
2. The bladder-inflating structure as claimed in claim 1, wherein the resilient air chamber can communicate with an external bladder through the one-way membrane nozzle.
3. The bladder-inflating structure as claimed in claim 2, wherein an exhaustion valve is disposed between the bladder and the one-way membrane nozzle.
4. The bladder-inflating structure as claimed in claim 1, wherein two hard inner pad sheets are respectively attached to a top side and a bottom side of the receiving space of the resilient air chamber.
5. The bladder-inflating structure as claimed in claim 2, wherein two hard inner pad sheets are respectively attached to a top side and a bottom side of the receiving space of the resilient air chamber.
6. The bladder-inflating structure as claimed in claim 3, wherein two hard inner pad sheets are respectively attached to a top side and a bottom side of the receiving space of the resilient air chamber.
7. The bladder-inflating structure as claimed in claim 1, wherein the one-way membrane nozzle is composed of two soft thin membranes, the peripheries of the soft thin membranes being partially fused with each other to define a fluid passage, the fluid passage having an inlet end extending into the receiving space and an outlet end extending into the bladder.
8. The bladder-inflating structure as claimed in claim 2, wherein the one-way membrane nozzle is composed of two soft thin membranes, the peripheries of the soft thin membranes being partially fused with each other to define a fluid passage, the fluid passage having an inlet end extending into the receiving space and an outlet end extending into the bladder.
9. The bladder-inflating structure as claimed in claim 3, wherein the one-way membrane nozzle is composed of two soft thin membranes, the peripheries of the soft thin membranes being partially fused with each other to define a fluid passage, the fluid passage having an inlet end extending into the receiving space and an outlet end extending into the bladder.
10. The bladder-inflating structure as claimed in claim 4, wherein the one-way membrane nozzle is composed of two soft thin membranes, the peripheries of the soft thin membranes being partially fused with each other to define a fluid passage, the fluid passage having an inlet end extending into the receiving space and an outlet end extending into the bladder.
11. The bladder-inflating structure as claimed in claim 5, wherein the one-way membrane nozzle is composed of two soft thin membranes, the peripheries of the soft thin membranes being partially fused with each other to define a fluid passage, the fluid passage having an inlet end extending into the receiving space and an outlet end extending into the bladder.
12. The bladder-inflating structure as claimed in claim 6, wherein the one-way membrane nozzle is composed of two soft thin membranes, the peripheries of the soft thin membranes being partially fused with each other to define a fluid passage, the fluid passage having an inlet end extending into the receiving space and an outlet end extending into the bladder.
13. The bladder-inflating structure as claimed in claim 1, wherein an intake is preformed on the resilient air chamber, a resilient clack being disposed at the intake on inner side thereof to serve as the intake valve.
14. The bladder-inflating structure as claimed in claim 2, wherein an intake is preformed on the resilient air chamber, a resilient clack being disposed at the intake on inner side thereof to serve as the intake valve.
15. The bladder-inflating structure as claimed in claim 3, wherein an intake is preformed on the resilient air chamber, a resilient clack being disposed at the intake on inner side thereof to serve as the intake valve.
16. The bladder-inflating structure as claimed in claim 4, wherein an intake is preformed on the resilient air chamber, a resilient clack being disposed at the intake on inner side thereof to serve as the intake valve.
17. The bladder-inflating structure as claimed in claim 5, wherein an intake is preformed on the resilient air chamber, a resilient clack being disposed at the intake on inner side thereof to serve as the intake valve.
18. The bladder-inflating structure as claimed in claim 6, wherein an intake is preformed on the resilient air chamber, a resilient clack being disposed at the intake on inner side thereof to serve as the intake valve.
19. The bladder-inflating structure as claimed in claim 7, wherein an intake is preformed on the resilient air chamber, a resilient clack being disposed at the intake on inner side thereof to serve as the intake valve.
20. The bladder-inflating structure as claimed in claim 8, wherein an intake is preformed on the resilient air chamber, a resilient clack being disposed at the intake on inner side thereof to serve as the intake valve.
21. The bladder-inflating structure as claimed in claim 9, wherein an intake is preformed on the resilient air chamber, a resilient clack being disposed at the intake on inner side thereof to serve as the intake valve.
22. The bladder-inflating structure as claimed in claim 10, wherein an intake is preformed on the resilient air chamber, a resilient clack being disposed at the intake on inner side thereof to serve as the intake valve.
23. The bladder-inflating structure as claimed in claim 11, wherein an intake is preformed on the resilient air chamber, a resilient clack being disposed at the intake on inner side thereof to serve as the intake valve.
24. The bladder-inflating structure as claimed in claim 12, wherein an intake is preformed on the resilient air chamber, a resilient clack being disposed at the intake on inner side thereof to serve as the intake valve.
25. The bladder-inflating structure as claimed in claim 1, wherein an exhaustion port is preformed on the bladder, an exhaustion valve being disposed on the bladder adjacent to the one-way membrane nozzle, the exhaustion valve having a press button passing through the exhaustion port of the bladder, a resilient member being fitted around the press button to abut against a circumference of an outer end of the exhaustion port, an inner end of the press button extending into the exhaustion port being formed with a stopper flange, whereby when the press button is resiliently forced by the resilient member, the stopper flange tightly abuts against a circumference of an inner end of the exhaustion port.
26. The bladder-inflating structure as claimed in claim 2, wherein an exhaustion port is preformed on the bladder, an exhaustion valve being disposed on the bladder adjacent to the one-way membrane nozzle, the exhaustion valve having a press button passing through the exhaustion port of the bladder, a resilient member being fitted around the press button to abut against a circumference of an outer end of the exhaustion port, an inner end of the press button extending into the exhaustion port being formed with a stopper flange, whereby when the press button is resiliently forced by the resilient member, the stopper flange tightly abuts against a circumference of an inner end of the exhaustion port.
27. The bladder-inflating structure as claimed in claim 3, wherein an exhaustion port is preformed on the bladder, an exhaustion valve being disposed on the bladder adjacent to the one-way membrane nozzle, the exhaustion valve having a press button passing through the exhaustion port of the bladder, a resilient member being fitted around the press button to abut against a circumference of an outer end of the exhaustion port, an inner end of the press button extending into the exhaustion port being formed with a stopper flange, whereby when the press button is resiliently forced by the resilient member, the stopper flange tightly abuts against a circumference of an inner end of the exhaustion port.
28. The bladder-inflating structure as claimed in claim 4, wherein an exhaustion port is preformed on the bladder, an exhaustion valve being disposed on the bladder adjacent to the one-way membrane nozzle, the exhaustion valve having a press button passing through the exhaustion port of the bladder, a resilient member being fitted around the press button to abut against a circumference of an outer end of the exhaustion port, an inner end of the press button extending into the exhaustion port being formed with a stopper flange, whereby when the press button is resiliently forced by the resilient member, the stopper flange tightly abuts against a circumference of an inner end of the exhaustion port.
29. The bladder-inflating structure as claimed in claim 5, wherein an exhaustion port is preformed on the bladder, an exhaustion valve being disposed on the bladder adjacent to the one-way membrane nozzle, the exhaustion valve having a press button passing through the exhaustion port of the bladder, a resilient member being fitted around the press button to abut against a circumference of an outer end of the exhaustion port, an inner end of the press button extending into the exhaustion port being formed with a stopper flange, whereby when the press button is resiliently forced by the resilient member, the stopper flange tightly abuts against a circumference of an inner end of the exhaustion port.
30. The bladder-inflating structure as claimed in claim 6, wherein an exhaustion port is preformed on the bladder, an exhaustion valve being disposed on the bladder adjacent to the one-way membrane nozzle, the exhaustion valve having a press button passing through the exhaustion port of the bladder, a resilient member being fitted around the press button to abut against a circumference of an outer end of the exhaustion port, an inner end of the press button extending into the exhaustion port being formed with a stopper flange, whereby when the press button is resiliently forced by the resilient member, the stopper flange tightly abuts against a circumference of an inner end of the exhaustion port.
31. The bladder-inflating structure as claimed in claim 7, wherein an exhaustion port is preformed on the bladder, an exhaustion valve being disposed on the bladder adjacent to the one-way membrane nozzle, the exhaustion valve having a press button passing through the exhaustion port of the bladder, a resilient member being fitted around the press button to abut against a circumference of an outer end of the exhaustion port, an inner end of the press button extending into the exhaustion port being formed with a stopper flange, whereby when the press button is resiliently forced by the resilient member, the stopper flange tightly abuts against a circumference of an inner end of the exhaustion port.
32. The bladder-inflating structure as claimed in claim 8, wherein an exhaustion port is preformed on the bladder, an exhaustion valve being disposed on the bladder adjacent to the one-way membrane nozzle, the exhaustion valve having a press button passing through the exhaustion port of the bladder, a resilient member being fitted around the press button to abut against a circumference of an outer end of the exhaustion port, an inner end of the press button extending into the exhaustion port being formed with a stopper flange, whereby when the press button is resiliently forced by the resilient member, the stopper flange tightly abuts against a circumference of an inner end of the exhaustion port.
33. The bladder-inflating structure as claimed in claim 9, wherein an exhaustion port is preformed on the bladder, an exhaustion valve being disposed on the bladder adjacent to the one-way membrane nozzle, the exhaustion valve having a press button passing through the exhaustion port of the bladder, a resilient member being fitted around the press button to abut against a circumference of an outer end of the exhaustion port, an inner end of the press button extending into the exhaustion port being formed with a stopper flange, whereby when the press button is resiliently forced by the resilient member, the stopper flange tightly abuts against a circumference of an inner end of the exhaustion port.
34. The bladder-inflating structure as claimed in claim 10, wherein an exhaustion port is preformed on the bladder, an exhaustion valve being disposed on the bladder adjacent to the one-way membrane nozzle, the exhaustion valve having a press button passing through the exhaustion port of the bladder, a resilient member being fitted around the press button to abut against a circumference of an outer end of the exhaustion port, an inner end of the press button extending into the exhaustion port being formed with a stopper flange, whereby when the press button is resiliently forced by the resilient member, the stopper flange tightly abuts against a circumference of an inner end of the exhaustion port.
35. The bladder-inflating structure as claimed in claim 11, wherein an exhaustion port is preformed on the bladder, an exhaustion valve being disposed on the bladder adjacent to the one-way membrane nozzle, the exhaustion valve having a press button passing through the exhaustion port of the bladder, a resilient member being fitted around the press button to abut against a circumference of an outer end of the exhaustion port, an inner end of the press button extending into the exhaustion port being formed with a stopper flange, whereby when the press button is resiliently forced by the resilient member, the stopper flange tightly abuts against a circumference of an inner end of the exhaustion port.
36. The bladder-inflating structure as claimed in claim 12, wherein an exhaustion port is preformed on the bladder, an exhaustion valve being disposed on the bladder adjacent to the one-way membrane nozzle, the exhaustion valve having a press button passing through the exhaustion port of the bladder, a resilient member being fitted around the press button to abut against a circumference of an outer end of the exhaustion port, an inner end of the press button extending into the exhaustion port being formed with a stopper flange, whereby when the press button is resiliently forced by the resilient member, the stopper flange tightly abuts against a circumference of an inner end of the exhaustion port.
37. The bladder-inflating structure as claimed in claim 13, wherein an exhaustion port is preformed on the bladder, an exhaustion valve being disposed on the bladder adjacent to the one-way membrane nozzle, the exhaustion valve having a press button passing through the exhaustion port of the bladder, a resilient member being fitted around the press button to abut against a circumference of an outer end of the exhaustion port, an inner end of the press button extending into the exhaustion port being formed with a stopper flange, whereby when the press button is resiliently forced by the resilient member, the stopper flange tightly abuts against a circumference of an inner end of the exhaustion port.
38. The bladder-inflating structure as claimed in claim 14, wherein an exhaustion port is preformed on the bladder, an exhaustion valve being disposed on the bladder adjacent to the one-way membrane nozzle, the exhaustion valve having a press button passing through the exhaustion port of the bladder, a resilient member being fitted around the press button to abut against a circumference of an outer end of the exhaustion port, an inner end of the press button extending into the exhaustion port being formed with a stopper flange, whereby when the press button is resiliently forced by the resilient member, the stopper flange tightly abuts against a circumference of an inner end of the exhaustion port.
39. The bladder-inflating structure as claimed in claim 15, wherein an exhaustion port is preformed on the bladder, an exhaustion valve being disposed on the bladder adjacent to the one-way membrane nozzle, the exhaustion valve having a press button passing through the exhaustion port of the bladder, a resilient member being fitted around the press button to abut against a circumference of an outer end of the exhaustion port, an inner end of the press button extending into the exhaustion port being formed with a stopper flange, whereby when the press button is resiliently forced by the resilient member, the stopper flange tightly abuts against a circumference of an inner end of the exhaustion port.
40. The bladder-inflating structure as claimed in claim 16, wherein an exhaustion port is preformed on the bladder, an exhaustion valve being disposed on the bladder adjacent to the one-way membrane nozzle, the exhaustion valve having a press button passing through the exhaustion port of the bladder, a resilient member being fitted around the press button to abut against a circumference of an outer end of the exhaustion port, an inner end of the press button extending into the exhaustion port being formed with a stopper flange, whereby when the press button is resiliently forced by the resilient member, the stopper flange tightly abuts against a circumference of an inner end of the exhaustion port.
41. The bladder-inflating structure as claimed in claim 17, wherein an exhaustion port is preformed on the bladder, an exhaustion valve being disposed on the bladder adjacent to the one-way membrane nozzle, the exhaustion valve having a press button passing through the exhaustion port of the bladder, a resilient member being fitted around the press button to abut against a circumference of an outer end of the exhaustion port, an inner end of the press button extending into the exhaustion port being formed with a stopper flange, whereby when the press button is resiliently forced by the resilient member, the stopper flange tightly abuts against a circumference of an inner end of the exhaustion port.
42. The bladder-inflating structure as claimed in claim 18, wherein an exhaustion port is preformed on the bladder, an exhaustion valve being disposed on the bladder adjacent to the one-way membrane nozzle, the exhaustion valve having a press button passing through the exhaustion port of the bladder, a resilient member being fitted around the press button to abut against a circumference of an outer end of the exhaustion port, an inner end of the press button extending into the exhaustion port being formed with a stopper flange, whereby when the press button is resiliently forced by the resilient member, the stopper flange tightly abuts against a circumference of an inner end of the exhaustion port.
43. The bladder-inflating structure as claimed in claim 19, wherein an exhaustion port is preformed on the bladder, an exhaustion valve being disposed on the bladder adjacent to the one-way membrane nozzle, the exhaustion valve having a press button passing through the exhaustion port of the bladder, a resilient member being fitted around the press button to abut against a circumference of an outer end of the exhaustion port, an inner end of the press button extending into the exhaustion port being formed with a stopper flange, whereby when the press button is resiliently forced by the resilient member, the stopper flange tightly abuts against a circumference of an inner end of the exhaustion port.
44. The bladder-inflating structure as claimed in claim 20, wherein an exhaustion port is preformed on the bladder, an exhaustion valve being disposed on the bladder adjacent to the one-way membrane nozzle, the exhaustion valve having a press button passing through the exhaustion port of the bladder, a resilient member being fitted around the press button to abut against a circumference of an outer end of the exhaustion port, an inner end of the press button extending into the exhaustion port being formed with a stopper flange, whereby when the press button is resiliently forced by the resilient member, the stopper flange tightly abuts against a circumference of an inner end of the exhaustion port.
45. The bladder-inflating structure as claimed in claim 21, wherein an exhaustion port is preformed on the bladder, an exhaustion valve being disposed on the bladder adjacent to the one-way membrane nozzle, the exhaustion valve having a press button passing through the exhaustion port of the bladder, a resilient member being fitted around the press button to abut against a circumference of an outer end of the exhaustion port, an inner end of the press button extending into the exhaustion port being formed with a stopper flange, whereby when the press button is resiliently forced by the resilient member, the stopper flange tightly abuts against a circumference of an inner end of the exhaustion port.
46. The bladder-inflating structure as claimed in claim 22, wherein an exhaustion port is preformed on the bladder, an exhaustion valve being disposed on the bladder adjacent to the one-way membrane nozzle, the exhaustion valve having a press button passing through the exhaustion port of the bladder, a resilient member being fitted around the press button to abut against a circumference of an outer end of the exhaustion port, an inner end of the press button extending into the exhaustion port being formed with a stopper flange, whereby when the press button is resiliently forced by the resilient member, the stopper flange tightly abuts against a circumference of an inner end of the exhaustion port.
47. The bladder-inflating structure as claimed in claim 23, wherein an exhaustion port is preformed on the bladder, an exhaustion valve being disposed on the bladder adjacent to the one-way membrane nozzle, the exhaustion valve having a press button passing through the exhaustion port of the bladder, a resilient member being fitted around the press button to abut against a circumference of an outer end of the exhaustion port, an inner end of the press button extending into the exhaustion port being formed with a stopper flange, whereby when the press button is resiliently forced by the resilient member, the stopper flange tightly abuts against a circumference of an inner end of the exhaustion port.
48. The bladder-inflating structure as claimed in claim 24, wherein an exhaustion port is preformed on the bladder, an exhaustion valve being disposed on the bladder adjacent to the one-way membrane nozzle, the exhaustion valve having a press button passing through the exhaustion port of the bladder, a resilient member being fitted around the press button to abut against a circumference of an outer end of the exhaustion port, an inner end of the press button extending into the exhaustion port being formed with a stopper flange, whereby when the press button is resiliently forced by the resilient member, the stopper flange tightly abuts against a circumference of an inner end of the exhaustion port.Description:
BACKGROUND OF THE INVENTION
[0001]The present invention is related to an improved bladder-inflating structure, and more particularly to an inflating pump directly connectable to an inflatable bladder for inflating the same. The inflating pump has simplified structure and can inflate the bladder at higher pumping efficiency.
[0002]It is a conventional technique to inflate a bladder to form a compressible article such as an inflatable mattress, an inflatable pillow, an inflatable toy, an inflatable cushion, etc.
[0003]Taiwanese Patent Application No. 91213606 discloses an inflatable cushion structure including an inflating bag disposed on one side of an inflatable cushion. The inflating bag has a sponge layer and a check valve. Another check valve is disposed on one side of the inflating bag, which is fitted in a column hole of a fixing block. The check valve has a ventiduct. One end of the check valve is disposed in the inflatable cushion.
[0004]U.S. Pat. No. 5,144,708 entitled "check valve for fluid bladders" discloses a bladder combined with an inflating pump. The bladder is composed of an upper sheet and a lower sheet which define two chambers and a fluid passage therebetween. A check valve is disposed in the fluid passage. The check valve is composed of two plastic membranes with equal lengths. The plastic membranes are positioned in the fluid passage, permitting the fluid to one-way flow from one chamber of the bladder to the other.
[0005]In the above inflating pump structure, a sponge layer (or spring) is disposed in the inflating pump (inflating bag) for supporting and restoring the inflating pump. In use, a user presses the surface of the inflating pump with a finger. Under such circumstance, simply the portion around the pressed section is deformed and sunk to exhaust the air. In order to increase the pumping amount, it is necessary to enlarge the volume of the inflating pump. Also, the sponge layer will hinder the air from flowing. This will affect the intake/exhaustion efficiency of the inflating pump. Moreover, the inflating pump is generally fixedly mounted inside a specific inflatable bladder or on the periphery thereof. That is, the inflating pump is only applicable to a specific inflatable cushion or bladder combined with the inflating pump. It is impossible to use the inflating pump to inflate other air cushions or bladders as necessary. This limits the application range of the inflating pump.
[0006]Taiwanese Patent Application No. 94216572 discloses a pump structure easily and quickly connectable with an air cushion or bladder. The pump structure includes a flexible main body, a check valve and a passage. The flexible main body has a compressible and self-restorable chamber and a clack only permitting the fluid to one-way flow into the chamber. The check valve is connected to the chamber via an output tube. The passage is equipped with a relieve valve communicating with the output tube to form a relieve way. The output tube is easily selectively connectable to and extendable into a bladder for sending the pumped fluid into the bladder. This structure is not only applicable to a specific inflatable bladder and is widely applicable to various inflatable bladders. However, such structure still fails to help in reducing the volume of the inflating pump and enhancing the pumping efficiency.
SUMMARY OF THE INVENTION
[0007]It is therefore a primary object of the present invention to provide an improved bladder-inflating structure which can be conveniently used to inflate the bladder at higher pumping efficiency.
[0008]It is a further object of the present invention to provide the above bladder-inflating structure which has minified volume and can be easily stored and carried.
[0009]According to the above objects, the bladder-inflating structure of the present invention includes a resilient air chamber having a receiving space which can be reciprocally compressed and released. After released, the resilient air chamber itself can resiliently restore to its original state. An inflatable bladder is connected to one side of the resilient air chamber. An intake valve is disposed on the resilient air chamber. When the resilient air chamber is compressed and released, the intake valve only permits external air to one-way flow into the receiving space. A one-way membrane nozzle is disposed on one side of the resilient air chamber. The one-way membrane nozzle has an internal fluid passage. The fluid passage has an inlet end extending into the receiving space and an outlet end extending into the bladder. The one-way membrane nozzle only permits the fluid to one-way flow from the receiving space of the resilient air chamber into a bladder to inflate the bladder.
[0010]The present invention can be best understood through the following description and accompanying drawings wherein:
BRIEF DESCRIPTION OF THE DRAWINGS
[0011]FIG. 1 is a perspective exploded view of the present invention;
[0012]FIG. 2 is a perspective assembled view of the present invention;
[0013]FIG. 3 is a front sectional view of the present invention, showing the resilient air chamber is compressed in pumping operation;
[0014]FIG. 3A is an enlarged view according to the circled area of FIG. 3;
[0015]FIG. 4 is a side sectional view of the present invention, showing the resilient air chamber is compressed in pumping operation;
[0016]FIG. 4A is an enlarged view according to the circled area of FIG. 4;
[0017]FIG. 5 is a front sectional view of the present invention, showing the resilient air chamber is released in pumping operation;
[0018]FIG. 5A is an enlarged view according to the circled area of FIG. 5;
[0019]FIG. 6 is a side sectional view of the present invention, showing the resilient air chamber is released in pumping operation;
[0020]FIG. 6A is an enlarged view according to the circled area of FIG. 6; and
[0021]FIG. 7 is a sectional view showing the operation of the exhaustion valve of the present invention.
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS
[0022]Please refer to FIGS. 1 and 2. The bladder-inflating structure of the present invention includes a resilient air chamber 1, a one-way membrane nozzle 2 and an exhaustion valve 3. The resilient air chamber 1 is composed of two resilient pieces 11, 12 mated with each other. The two resilient pieces 11, 12 respectively have two sinks 111, 121 corresponding to each other. An outer side of the resilient air chamber 1 is connected with a separate bladder 4. The sinks 111, 121 together form a receiving space inside the resilient air chamber 1 for receiving a fluid (air). The resilient air chamber 1 can be reciprocally compressed and released. After released, the resilient air chamber 1 itself can resiliently restore to its original state. At least one of the resilient pieces 11, 12 is formed with an intake 112 communicating the receiving space of the resilient air chamber 1 with outer side. A soft and resilient clack 113 is disposed at the intake 112 on inner side thereof. When forced, the clack 113 is one-way inward opened. Accordingly, the clack 113 serves as an intake valve only permitting the air to go from outer side through the intake 112 into the resilient air chamber 1. Two hard inner pad sheets 13, 14 are respectively adhered to the bottoms of the sinks 111, 121 of the resilient pieces 11, 12. The inner pad sheet 13 is formed with a larger through hole 131 corresponding to the intake 112. The one-way membrane nozzle 2 is composed of two soft thin membranes. The peripheries of the two thin membranes are partially fused with each other to define a fluid passage. The fluid passage has an inlet end 21 and an outlet end 22. The inlet end 21 has an opening with fixed pattern and extends into the receiving space of the resilient air chamber 1. The outlet end 22 extends into the bladder 4. The exhaustion valve 3 has a press button 31. The bladder 4 is preformed with an exhaustion port 41 adjacent to the one-way membrane nozzle 2. The press button 31 extends through the exhaustion port 41. A resilient member 33 is fitted around the press button 31 to abut against the circumference of an outer end of the exhaustion port 41. The press button 31 has an inner end extending into the exhaustion port 41. The inner end of the press button 31 is formed with a stopper flange 32. The press button 31 is resiliently forced by the resilient member 33, whereby the stopper flange 32 tightly abuts against the circumference of an inner end of the exhaustion port 41. A cap 34 is fitted on an outer end of the press button 31.
[0023]FIGS. 3 to 7 show the compression, deformation and restoration as well as the airflow path of the present invention. In use, the resilient air chamber 1 is compressed. By means of the hard inner pad sheets 13, 14, the top side and bottom side of the resilient air chamber 1 are pressed toward each other as two planes. At this time, the receiving space is compressed to push the clack 113 to block the intake 112. Accordingly, the air in the receiving space of the resilient air chamber 1 passes through the inlet end 21 of the one-way membrane nozzle 2 into the fluid passage and then flows from the outlet end 22 into the bladder 4 as shown in FIGS. 3, 3A, 4, 4A. When the external forced applied to the resilient air chamber 1 disappears, due to the positive pressure of the bladder 4, the outlet end 22 of the one-way membrane nozzle 2 is closed, whereby the air in the bladder 4 cannot pass through the nozzle 2 to flow back into the resilient air chamber 1. At this time, the resilient air chamber 1 restores to its original shape by means of its own resilience. At this time, a negative pressure is created in the receiving space of the resilient air chamber 1. At this time, the external air pressure can push away the clack 113 to pass through the intake 112 into the receiving space of the resilient air chamber 1. By means of the one-way intake valve, the resilient air chamber 1 is supplemented with air as shown in FIGS. 5 and 5A. The inflation operation is repeated to expand the bladder 4 to a certain volume for various usages.
[0024]When the bladder 4 is expanded, due to the positive pressure of the bladder 4, the outlet end 22 of the one-way membrane nozzle 2 is closed, whereby the air in the bladder 4 cannot pass through the nozzle 2 to flow back into the resilient air chamber 1. Therefore, with the bladder 4 connected with the resilient air chamber 1 and it is necessary to deflate the bladder 4 for storage, a user can press the press button 31 of the exhaustion valve 3. At this time, the stopper flange 32 is separated from the circumference of the inner end of the exhaustion port 41 to unblock the exhaustion port 41. Under such circumstance, the air in the bladder 4 is exhausted from the exhaustion port 41 to deflate the bladder 2.
[0025]According to the above arrangement, by means of the hard inner pad sheets 13, 14, when the resilient air chamber 1 is compressed, the top side and bottom side of the resilient air chamber 1 are pressed toward each other as two planes. This can achieve a better pumping effect. Moreover, there is no object or material disposed in the receiving space of the resilient air chamber 1 to hinder the air from flowing. Therefore, the air can flow at higher efficiency.
[0026]The above embodiments are only used to illustrate the present invention, not intended to limit the scope thereof. Many modifications of the above embodiments can be made without departing from the spirit of the present invention.
Claims:
1. A bladder-inflating structure comprising:a resilient air chamber having
a receiving space which can be reciprocally compressed and released,
whereby after released, the resilient air chamber itself can resiliently
restore to its original state;an intake valve disposed on the resilient
air chamber, the intake valve only permitting external air to one-way
flow into the receiving space; anda one-way membrane nozzle disposed on
one side of the resilient air chamber, the one-way membrane nozzle having
an internal fluid passage which only permits the fluid to flow from the
receiving space of the resilient air chamber to outer side.
2. The bladder-inflating structure as claimed in claim 1, wherein the resilient air chamber can communicate with an external bladder through the one-way membrane nozzle.
3. The bladder-inflating structure as claimed in claim 2, wherein an exhaustion valve is disposed between the bladder and the one-way membrane nozzle.
4. The bladder-inflating structure as claimed in claim 1, wherein two hard inner pad sheets are respectively attached to a top side and a bottom side of the receiving space of the resilient air chamber.
5. The bladder-inflating structure as claimed in claim 2, wherein two hard inner pad sheets are respectively attached to a top side and a bottom side of the receiving space of the resilient air chamber.
6. The bladder-inflating structure as claimed in claim 3, wherein two hard inner pad sheets are respectively attached to a top side and a bottom side of the receiving space of the resilient air chamber.
7. The bladder-inflating structure as claimed in claim 1, wherein the one-way membrane nozzle is composed of two soft thin membranes, the peripheries of the soft thin membranes being partially fused with each other to define a fluid passage, the fluid passage having an inlet end extending into the receiving space and an outlet end extending into the bladder.
8. The bladder-inflating structure as claimed in claim 2, wherein the one-way membrane nozzle is composed of two soft thin membranes, the peripheries of the soft thin membranes being partially fused with each other to define a fluid passage, the fluid passage having an inlet end extending into the receiving space and an outlet end extending into the bladder.
9. The bladder-inflating structure as claimed in claim 3, wherein the one-way membrane nozzle is composed of two soft thin membranes, the peripheries of the soft thin membranes being partially fused with each other to define a fluid passage, the fluid passage having an inlet end extending into the receiving space and an outlet end extending into the bladder.
10. The bladder-inflating structure as claimed in claim 4, wherein the one-way membrane nozzle is composed of two soft thin membranes, the peripheries of the soft thin membranes being partially fused with each other to define a fluid passage, the fluid passage having an inlet end extending into the receiving space and an outlet end extending into the bladder.
11. The bladder-inflating structure as claimed in claim 5, wherein the one-way membrane nozzle is composed of two soft thin membranes, the peripheries of the soft thin membranes being partially fused with each other to define a fluid passage, the fluid passage having an inlet end extending into the receiving space and an outlet end extending into the bladder.
12. The bladder-inflating structure as claimed in claim 6, wherein the one-way membrane nozzle is composed of two soft thin membranes, the peripheries of the soft thin membranes being partially fused with each other to define a fluid passage, the fluid passage having an inlet end extending into the receiving space and an outlet end extending into the bladder.
13. The bladder-inflating structure as claimed in claim 1, wherein an intake is preformed on the resilient air chamber, a resilient clack being disposed at the intake on inner side thereof to serve as the intake valve.
14. The bladder-inflating structure as claimed in claim 2, wherein an intake is preformed on the resilient air chamber, a resilient clack being disposed at the intake on inner side thereof to serve as the intake valve.
15. The bladder-inflating structure as claimed in claim 3, wherein an intake is preformed on the resilient air chamber, a resilient clack being disposed at the intake on inner side thereof to serve as the intake valve.
16. The bladder-inflating structure as claimed in claim 4, wherein an intake is preformed on the resilient air chamber, a resilient clack being disposed at the intake on inner side thereof to serve as the intake valve.
17. The bladder-inflating structure as claimed in claim 5, wherein an intake is preformed on the resilient air chamber, a resilient clack being disposed at the intake on inner side thereof to serve as the intake valve.
18. The bladder-inflating structure as claimed in claim 6, wherein an intake is preformed on the resilient air chamber, a resilient clack being disposed at the intake on inner side thereof to serve as the intake valve.
19. The bladder-inflating structure as claimed in claim 7, wherein an intake is preformed on the resilient air chamber, a resilient clack being disposed at the intake on inner side thereof to serve as the intake valve.
20. The bladder-inflating structure as claimed in claim 8, wherein an intake is preformed on the resilient air chamber, a resilient clack being disposed at the intake on inner side thereof to serve as the intake valve.
21. The bladder-inflating structure as claimed in claim 9, wherein an intake is preformed on the resilient air chamber, a resilient clack being disposed at the intake on inner side thereof to serve as the intake valve.
22. The bladder-inflating structure as claimed in claim 10, wherein an intake is preformed on the resilient air chamber, a resilient clack being disposed at the intake on inner side thereof to serve as the intake valve.
23. The bladder-inflating structure as claimed in claim 11, wherein an intake is preformed on the resilient air chamber, a resilient clack being disposed at the intake on inner side thereof to serve as the intake valve.
24. The bladder-inflating structure as claimed in claim 12, wherein an intake is preformed on the resilient air chamber, a resilient clack being disposed at the intake on inner side thereof to serve as the intake valve.
25. The bladder-inflating structure as claimed in claim 1, wherein an exhaustion port is preformed on the bladder, an exhaustion valve being disposed on the bladder adjacent to the one-way membrane nozzle, the exhaustion valve having a press button passing through the exhaustion port of the bladder, a resilient member being fitted around the press button to abut against a circumference of an outer end of the exhaustion port, an inner end of the press button extending into the exhaustion port being formed with a stopper flange, whereby when the press button is resiliently forced by the resilient member, the stopper flange tightly abuts against a circumference of an inner end of the exhaustion port.
26. The bladder-inflating structure as claimed in claim 2, wherein an exhaustion port is preformed on the bladder, an exhaustion valve being disposed on the bladder adjacent to the one-way membrane nozzle, the exhaustion valve having a press button passing through the exhaustion port of the bladder, a resilient member being fitted around the press button to abut against a circumference of an outer end of the exhaustion port, an inner end of the press button extending into the exhaustion port being formed with a stopper flange, whereby when the press button is resiliently forced by the resilient member, the stopper flange tightly abuts against a circumference of an inner end of the exhaustion port.
27. The bladder-inflating structure as claimed in claim 3, wherein an exhaustion port is preformed on the bladder, an exhaustion valve being disposed on the bladder adjacent to the one-way membrane nozzle, the exhaustion valve having a press button passing through the exhaustion port of the bladder, a resilient member being fitted around the press button to abut against a circumference of an outer end of the exhaustion port, an inner end of the press button extending into the exhaustion port being formed with a stopper flange, whereby when the press button is resiliently forced by the resilient member, the stopper flange tightly abuts against a circumference of an inner end of the exhaustion port.
28. The bladder-inflating structure as claimed in claim 4, wherein an exhaustion port is preformed on the bladder, an exhaustion valve being disposed on the bladder adjacent to the one-way membrane nozzle, the exhaustion valve having a press button passing through the exhaustion port of the bladder, a resilient member being fitted around the press button to abut against a circumference of an outer end of the exhaustion port, an inner end of the press button extending into the exhaustion port being formed with a stopper flange, whereby when the press button is resiliently forced by the resilient member, the stopper flange tightly abuts against a circumference of an inner end of the exhaustion port.
29. The bladder-inflating structure as claimed in claim 5, wherein an exhaustion port is preformed on the bladder, an exhaustion valve being disposed on the bladder adjacent to the one-way membrane nozzle, the exhaustion valve having a press button passing through the exhaustion port of the bladder, a resilient member being fitted around the press button to abut against a circumference of an outer end of the exhaustion port, an inner end of the press button extending into the exhaustion port being formed with a stopper flange, whereby when the press button is resiliently forced by the resilient member, the stopper flange tightly abuts against a circumference of an inner end of the exhaustion port.
30. The bladder-inflating structure as claimed in claim 6, wherein an exhaustion port is preformed on the bladder, an exhaustion valve being disposed on the bladder adjacent to the one-way membrane nozzle, the exhaustion valve having a press button passing through the exhaustion port of the bladder, a resilient member being fitted around the press button to abut against a circumference of an outer end of the exhaustion port, an inner end of the press button extending into the exhaustion port being formed with a stopper flange, whereby when the press button is resiliently forced by the resilient member, the stopper flange tightly abuts against a circumference of an inner end of the exhaustion port.
31. The bladder-inflating structure as claimed in claim 7, wherein an exhaustion port is preformed on the bladder, an exhaustion valve being disposed on the bladder adjacent to the one-way membrane nozzle, the exhaustion valve having a press button passing through the exhaustion port of the bladder, a resilient member being fitted around the press button to abut against a circumference of an outer end of the exhaustion port, an inner end of the press button extending into the exhaustion port being formed with a stopper flange, whereby when the press button is resiliently forced by the resilient member, the stopper flange tightly abuts against a circumference of an inner end of the exhaustion port.
32. The bladder-inflating structure as claimed in claim 8, wherein an exhaustion port is preformed on the bladder, an exhaustion valve being disposed on the bladder adjacent to the one-way membrane nozzle, the exhaustion valve having a press button passing through the exhaustion port of the bladder, a resilient member being fitted around the press button to abut against a circumference of an outer end of the exhaustion port, an inner end of the press button extending into the exhaustion port being formed with a stopper flange, whereby when the press button is resiliently forced by the resilient member, the stopper flange tightly abuts against a circumference of an inner end of the exhaustion port.
33. The bladder-inflating structure as claimed in claim 9, wherein an exhaustion port is preformed on the bladder, an exhaustion valve being disposed on the bladder adjacent to the one-way membrane nozzle, the exhaustion valve having a press button passing through the exhaustion port of the bladder, a resilient member being fitted around the press button to abut against a circumference of an outer end of the exhaustion port, an inner end of the press button extending into the exhaustion port being formed with a stopper flange, whereby when the press button is resiliently forced by the resilient member, the stopper flange tightly abuts against a circumference of an inner end of the exhaustion port.
34. The bladder-inflating structure as claimed in claim 10, wherein an exhaustion port is preformed on the bladder, an exhaustion valve being disposed on the bladder adjacent to the one-way membrane nozzle, the exhaustion valve having a press button passing through the exhaustion port of the bladder, a resilient member being fitted around the press button to abut against a circumference of an outer end of the exhaustion port, an inner end of the press button extending into the exhaustion port being formed with a stopper flange, whereby when the press button is resiliently forced by the resilient member, the stopper flange tightly abuts against a circumference of an inner end of the exhaustion port.
35. The bladder-inflating structure as claimed in claim 11, wherein an exhaustion port is preformed on the bladder, an exhaustion valve being disposed on the bladder adjacent to the one-way membrane nozzle, the exhaustion valve having a press button passing through the exhaustion port of the bladder, a resilient member being fitted around the press button to abut against a circumference of an outer end of the exhaustion port, an inner end of the press button extending into the exhaustion port being formed with a stopper flange, whereby when the press button is resiliently forced by the resilient member, the stopper flange tightly abuts against a circumference of an inner end of the exhaustion port.
36. The bladder-inflating structure as claimed in claim 12, wherein an exhaustion port is preformed on the bladder, an exhaustion valve being disposed on the bladder adjacent to the one-way membrane nozzle, the exhaustion valve having a press button passing through the exhaustion port of the bladder, a resilient member being fitted around the press button to abut against a circumference of an outer end of the exhaustion port, an inner end of the press button extending into the exhaustion port being formed with a stopper flange, whereby when the press button is resiliently forced by the resilient member, the stopper flange tightly abuts against a circumference of an inner end of the exhaustion port.
37. The bladder-inflating structure as claimed in claim 13, wherein an exhaustion port is preformed on the bladder, an exhaustion valve being disposed on the bladder adjacent to the one-way membrane nozzle, the exhaustion valve having a press button passing through the exhaustion port of the bladder, a resilient member being fitted around the press button to abut against a circumference of an outer end of the exhaustion port, an inner end of the press button extending into the exhaustion port being formed with a stopper flange, whereby when the press button is resiliently forced by the resilient member, the stopper flange tightly abuts against a circumference of an inner end of the exhaustion port.
38. The bladder-inflating structure as claimed in claim 14, wherein an exhaustion port is preformed on the bladder, an exhaustion valve being disposed on the bladder adjacent to the one-way membrane nozzle, the exhaustion valve having a press button passing through the exhaustion port of the bladder, a resilient member being fitted around the press button to abut against a circumference of an outer end of the exhaustion port, an inner end of the press button extending into the exhaustion port being formed with a stopper flange, whereby when the press button is resiliently forced by the resilient member, the stopper flange tightly abuts against a circumference of an inner end of the exhaustion port.
39. The bladder-inflating structure as claimed in claim 15, wherein an exhaustion port is preformed on the bladder, an exhaustion valve being disposed on the bladder adjacent to the one-way membrane nozzle, the exhaustion valve having a press button passing through the exhaustion port of the bladder, a resilient member being fitted around the press button to abut against a circumference of an outer end of the exhaustion port, an inner end of the press button extending into the exhaustion port being formed with a stopper flange, whereby when the press button is resiliently forced by the resilient member, the stopper flange tightly abuts against a circumference of an inner end of the exhaustion port.
40. The bladder-inflating structure as claimed in claim 16, wherein an exhaustion port is preformed on the bladder, an exhaustion valve being disposed on the bladder adjacent to the one-way membrane nozzle, the exhaustion valve having a press button passing through the exhaustion port of the bladder, a resilient member being fitted around the press button to abut against a circumference of an outer end of the exhaustion port, an inner end of the press button extending into the exhaustion port being formed with a stopper flange, whereby when the press button is resiliently forced by the resilient member, the stopper flange tightly abuts against a circumference of an inner end of the exhaustion port.
41. The bladder-inflating structure as claimed in claim 17, wherein an exhaustion port is preformed on the bladder, an exhaustion valve being disposed on the bladder adjacent to the one-way membrane nozzle, the exhaustion valve having a press button passing through the exhaustion port of the bladder, a resilient member being fitted around the press button to abut against a circumference of an outer end of the exhaustion port, an inner end of the press button extending into the exhaustion port being formed with a stopper flange, whereby when the press button is resiliently forced by the resilient member, the stopper flange tightly abuts against a circumference of an inner end of the exhaustion port.
42. The bladder-inflating structure as claimed in claim 18, wherein an exhaustion port is preformed on the bladder, an exhaustion valve being disposed on the bladder adjacent to the one-way membrane nozzle, the exhaustion valve having a press button passing through the exhaustion port of the bladder, a resilient member being fitted around the press button to abut against a circumference of an outer end of the exhaustion port, an inner end of the press button extending into the exhaustion port being formed with a stopper flange, whereby when the press button is resiliently forced by the resilient member, the stopper flange tightly abuts against a circumference of an inner end of the exhaustion port.
43. The bladder-inflating structure as claimed in claim 19, wherein an exhaustion port is preformed on the bladder, an exhaustion valve being disposed on the bladder adjacent to the one-way membrane nozzle, the exhaustion valve having a press button passing through the exhaustion port of the bladder, a resilient member being fitted around the press button to abut against a circumference of an outer end of the exhaustion port, an inner end of the press button extending into the exhaustion port being formed with a stopper flange, whereby when the press button is resiliently forced by the resilient member, the stopper flange tightly abuts against a circumference of an inner end of the exhaustion port.
44. The bladder-inflating structure as claimed in claim 20, wherein an exhaustion port is preformed on the bladder, an exhaustion valve being disposed on the bladder adjacent to the one-way membrane nozzle, the exhaustion valve having a press button passing through the exhaustion port of the bladder, a resilient member being fitted around the press button to abut against a circumference of an outer end of the exhaustion port, an inner end of the press button extending into the exhaustion port being formed with a stopper flange, whereby when the press button is resiliently forced by the resilient member, the stopper flange tightly abuts against a circumference of an inner end of the exhaustion port.
45. The bladder-inflating structure as claimed in claim 21, wherein an exhaustion port is preformed on the bladder, an exhaustion valve being disposed on the bladder adjacent to the one-way membrane nozzle, the exhaustion valve having a press button passing through the exhaustion port of the bladder, a resilient member being fitted around the press button to abut against a circumference of an outer end of the exhaustion port, an inner end of the press button extending into the exhaustion port being formed with a stopper flange, whereby when the press button is resiliently forced by the resilient member, the stopper flange tightly abuts against a circumference of an inner end of the exhaustion port.
46. The bladder-inflating structure as claimed in claim 22, wherein an exhaustion port is preformed on the bladder, an exhaustion valve being disposed on the bladder adjacent to the one-way membrane nozzle, the exhaustion valve having a press button passing through the exhaustion port of the bladder, a resilient member being fitted around the press button to abut against a circumference of an outer end of the exhaustion port, an inner end of the press button extending into the exhaustion port being formed with a stopper flange, whereby when the press button is resiliently forced by the resilient member, the stopper flange tightly abuts against a circumference of an inner end of the exhaustion port.
47. The bladder-inflating structure as claimed in claim 23, wherein an exhaustion port is preformed on the bladder, an exhaustion valve being disposed on the bladder adjacent to the one-way membrane nozzle, the exhaustion valve having a press button passing through the exhaustion port of the bladder, a resilient member being fitted around the press button to abut against a circumference of an outer end of the exhaustion port, an inner end of the press button extending into the exhaustion port being formed with a stopper flange, whereby when the press button is resiliently forced by the resilient member, the stopper flange tightly abuts against a circumference of an inner end of the exhaustion port.
48. The bladder-inflating structure as claimed in claim 24, wherein an exhaustion port is preformed on the bladder, an exhaustion valve being disposed on the bladder adjacent to the one-way membrane nozzle, the exhaustion valve having a press button passing through the exhaustion port of the bladder, a resilient member being fitted around the press button to abut against a circumference of an outer end of the exhaustion port, an inner end of the press button extending into the exhaustion port being formed with a stopper flange, whereby when the press button is resiliently forced by the resilient member, the stopper flange tightly abuts against a circumference of an inner end of the exhaustion port.
Description:
BACKGROUND OF THE INVENTION
[0001]The present invention is related to an improved bladder-inflating structure, and more particularly to an inflating pump directly connectable to an inflatable bladder for inflating the same. The inflating pump has simplified structure and can inflate the bladder at higher pumping efficiency.
[0002]It is a conventional technique to inflate a bladder to form a compressible article such as an inflatable mattress, an inflatable pillow, an inflatable toy, an inflatable cushion, etc.
[0003]Taiwanese Patent Application No. 91213606 discloses an inflatable cushion structure including an inflating bag disposed on one side of an inflatable cushion. The inflating bag has a sponge layer and a check valve. Another check valve is disposed on one side of the inflating bag, which is fitted in a column hole of a fixing block. The check valve has a ventiduct. One end of the check valve is disposed in the inflatable cushion.
[0004]U.S. Pat. No. 5,144,708 entitled "check valve for fluid bladders" discloses a bladder combined with an inflating pump. The bladder is composed of an upper sheet and a lower sheet which define two chambers and a fluid passage therebetween. A check valve is disposed in the fluid passage. The check valve is composed of two plastic membranes with equal lengths. The plastic membranes are positioned in the fluid passage, permitting the fluid to one-way flow from one chamber of the bladder to the other.
[0005]In the above inflating pump structure, a sponge layer (or spring) is disposed in the inflating pump (inflating bag) for supporting and restoring the inflating pump. In use, a user presses the surface of the inflating pump with a finger. Under such circumstance, simply the portion around the pressed section is deformed and sunk to exhaust the air. In order to increase the pumping amount, it is necessary to enlarge the volume of the inflating pump. Also, the sponge layer will hinder the air from flowing. This will affect the intake/exhaustion efficiency of the inflating pump. Moreover, the inflating pump is generally fixedly mounted inside a specific inflatable bladder or on the periphery thereof. That is, the inflating pump is only applicable to a specific inflatable cushion or bladder combined with the inflating pump. It is impossible to use the inflating pump to inflate other air cushions or bladders as necessary. This limits the application range of the inflating pump.
[0006]Taiwanese Patent Application No. 94216572 discloses a pump structure easily and quickly connectable with an air cushion or bladder. The pump structure includes a flexible main body, a check valve and a passage. The flexible main body has a compressible and self-restorable chamber and a clack only permitting the fluid to one-way flow into the chamber. The check valve is connected to the chamber via an output tube. The passage is equipped with a relieve valve communicating with the output tube to form a relieve way. The output tube is easily selectively connectable to and extendable into a bladder for sending the pumped fluid into the bladder. This structure is not only applicable to a specific inflatable bladder and is widely applicable to various inflatable bladders. However, such structure still fails to help in reducing the volume of the inflating pump and enhancing the pumping efficiency.
SUMMARY OF THE INVENTION
[0007]It is therefore a primary object of the present invention to provide an improved bladder-inflating structure which can be conveniently used to inflate the bladder at higher pumping efficiency.
[0008]It is a further object of the present invention to provide the above bladder-inflating structure which has minified volume and can be easily stored and carried.
[0009]According to the above objects, the bladder-inflating structure of the present invention includes a resilient air chamber having a receiving space which can be reciprocally compressed and released. After released, the resilient air chamber itself can resiliently restore to its original state. An inflatable bladder is connected to one side of the resilient air chamber. An intake valve is disposed on the resilient air chamber. When the resilient air chamber is compressed and released, the intake valve only permits external air to one-way flow into the receiving space. A one-way membrane nozzle is disposed on one side of the resilient air chamber. The one-way membrane nozzle has an internal fluid passage. The fluid passage has an inlet end extending into the receiving space and an outlet end extending into the bladder. The one-way membrane nozzle only permits the fluid to one-way flow from the receiving space of the resilient air chamber into a bladder to inflate the bladder.
[0010]The present invention can be best understood through the following description and accompanying drawings wherein:
BRIEF DESCRIPTION OF THE DRAWINGS
[0011]FIG. 1 is a perspective exploded view of the present invention;
[0012]FIG. 2 is a perspective assembled view of the present invention;
[0013]FIG. 3 is a front sectional view of the present invention, showing the resilient air chamber is compressed in pumping operation;
[0014]FIG. 3A is an enlarged view according to the circled area of FIG. 3;
[0015]FIG. 4 is a side sectional view of the present invention, showing the resilient air chamber is compressed in pumping operation;
[0016]FIG. 4A is an enlarged view according to the circled area of FIG. 4;
[0017]FIG. 5 is a front sectional view of the present invention, showing the resilient air chamber is released in pumping operation;
[0018]FIG. 5A is an enlarged view according to the circled area of FIG. 5;
[0019]FIG. 6 is a side sectional view of the present invention, showing the resilient air chamber is released in pumping operation;
[0020]FIG. 6A is an enlarged view according to the circled area of FIG. 6; and
[0021]FIG. 7 is a sectional view showing the operation of the exhaustion valve of the present invention.
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS
[0022]Please refer to FIGS. 1 and 2. The bladder-inflating structure of the present invention includes a resilient air chamber 1, a one-way membrane nozzle 2 and an exhaustion valve 3. The resilient air chamber 1 is composed of two resilient pieces 11, 12 mated with each other. The two resilient pieces 11, 12 respectively have two sinks 111, 121 corresponding to each other. An outer side of the resilient air chamber 1 is connected with a separate bladder 4. The sinks 111, 121 together form a receiving space inside the resilient air chamber 1 for receiving a fluid (air). The resilient air chamber 1 can be reciprocally compressed and released. After released, the resilient air chamber 1 itself can resiliently restore to its original state. At least one of the resilient pieces 11, 12 is formed with an intake 112 communicating the receiving space of the resilient air chamber 1 with outer side. A soft and resilient clack 113 is disposed at the intake 112 on inner side thereof. When forced, the clack 113 is one-way inward opened. Accordingly, the clack 113 serves as an intake valve only permitting the air to go from outer side through the intake 112 into the resilient air chamber 1. Two hard inner pad sheets 13, 14 are respectively adhered to the bottoms of the sinks 111, 121 of the resilient pieces 11, 12. The inner pad sheet 13 is formed with a larger through hole 131 corresponding to the intake 112. The one-way membrane nozzle 2 is composed of two soft thin membranes. The peripheries of the two thin membranes are partially fused with each other to define a fluid passage. The fluid passage has an inlet end 21 and an outlet end 22. The inlet end 21 has an opening with fixed pattern and extends into the receiving space of the resilient air chamber 1. The outlet end 22 extends into the bladder 4. The exhaustion valve 3 has a press button 31. The bladder 4 is preformed with an exhaustion port 41 adjacent to the one-way membrane nozzle 2. The press button 31 extends through the exhaustion port 41. A resilient member 33 is fitted around the press button 31 to abut against the circumference of an outer end of the exhaustion port 41. The press button 31 has an inner end extending into the exhaustion port 41. The inner end of the press button 31 is formed with a stopper flange 32. The press button 31 is resiliently forced by the resilient member 33, whereby the stopper flange 32 tightly abuts against the circumference of an inner end of the exhaustion port 41. A cap 34 is fitted on an outer end of the press button 31.
[0023]FIGS. 3 to 7 show the compression, deformation and restoration as well as the airflow path of the present invention. In use, the resilient air chamber 1 is compressed. By means of the hard inner pad sheets 13, 14, the top side and bottom side of the resilient air chamber 1 are pressed toward each other as two planes. At this time, the receiving space is compressed to push the clack 113 to block the intake 112. Accordingly, the air in the receiving space of the resilient air chamber 1 passes through the inlet end 21 of the one-way membrane nozzle 2 into the fluid passage and then flows from the outlet end 22 into the bladder 4 as shown in FIGS. 3, 3A, 4, 4A. When the external forced applied to the resilient air chamber 1 disappears, due to the positive pressure of the bladder 4, the outlet end 22 of the one-way membrane nozzle 2 is closed, whereby the air in the bladder 4 cannot pass through the nozzle 2 to flow back into the resilient air chamber 1. At this time, the resilient air chamber 1 restores to its original shape by means of its own resilience. At this time, a negative pressure is created in the receiving space of the resilient air chamber 1. At this time, the external air pressure can push away the clack 113 to pass through the intake 112 into the receiving space of the resilient air chamber 1. By means of the one-way intake valve, the resilient air chamber 1 is supplemented with air as shown in FIGS. 5 and 5A. The inflation operation is repeated to expand the bladder 4 to a certain volume for various usages.
[0024]When the bladder 4 is expanded, due to the positive pressure of the bladder 4, the outlet end 22 of the one-way membrane nozzle 2 is closed, whereby the air in the bladder 4 cannot pass through the nozzle 2 to flow back into the resilient air chamber 1. Therefore, with the bladder 4 connected with the resilient air chamber 1 and it is necessary to deflate the bladder 4 for storage, a user can press the press button 31 of the exhaustion valve 3. At this time, the stopper flange 32 is separated from the circumference of the inner end of the exhaustion port 41 to unblock the exhaustion port 41. Under such circumstance, the air in the bladder 4 is exhausted from the exhaustion port 41 to deflate the bladder 2.
[0025]According to the above arrangement, by means of the hard inner pad sheets 13, 14, when the resilient air chamber 1 is compressed, the top side and bottom side of the resilient air chamber 1 are pressed toward each other as two planes. This can achieve a better pumping effect. Moreover, there is no object or material disposed in the receiving space of the resilient air chamber 1 to hinder the air from flowing. Therefore, the air can flow at higher efficiency.
[0026]The above embodiments are only used to illustrate the present invention, not intended to limit the scope thereof. Many modifications of the above embodiments can be made without departing from the spirit of the present invention.
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