Patent application number | Description | Published |
20120227522 | HIGH-LOAD LINEAR ACTUATOR - A high-load linear actuator includes a driving mechanism, a worm shaft, a worm wheel assembly, a lead screw, a telescopic pipe and an outer pipe. The driving mechanism includes a base and a motor. The base has a supporting portion and an accommodating portion. The motor is fixed to the supporting portion. The worm shaft extends from the motor into the supporting portion. The worm wheel assembly comprises a worm wheel and two bearings for supporting the worm wheel in the accommodating portion. The worm wheel is drivingly engaged with the worm shaft. The lead screw is disposed through the worm wheel and driven by the motor for rotation. The telescopic pipe slips on the lead screw to be threadedly connected therewith. The outer pipe slips on the telescopic pipe. The rotation of the lead screw drives the telescopic pipe to linearly extend or retract relative to the outer pipe. By this structure, the present invention can be used in a medical apparatus capable of supporting a heavy load stably. | 09-13-2012 |
20120255380 | STROKE-RESTRICTING DEVICE OF LINEAR ACTUATOR AND WIRE-REELING MECHANISM THEREOF - The present invention relates to a stroke-restricting device of a linear actuator and a wire-reeling mechanism thereof The linear actuator includes a base and a telescopic pipe. The stroke-restricting device includes a box, a movable member, a block, a pair of switches, and a wire-reeling mechanism. The box is fixed to the base and has a wall plate. The wall plate is provided with a through-hole. The movable member includes a rod penetrating the through-hole and movable with respect to the box. The block is fixed to the rod. The pair of switches is fixed to the box to correspond to the block. Each of the switches has a trigger portion for generating electrical signals by means of contact of the block. Each of the trigger portions is located at two opposite ends of a moving path of the block. The wire-reeling mechanism includes a wire disposed in the telescopic pipe and moving therewith. One end of the wire is connected to the movable member. By this structure, only a small space can be used to control a limit position of a long distance. | 10-11-2012 |
20120305346 | MOTOR WITH BRAKING MECHANSIM FOR ACTUATOR - A motor with a braking mechanism for an actuator includes a main body, a rotating shaft and a braking mechanism. The rotating shaft is disposed through the center of the main body. The braking mechanism includes a friction element and a torsion spring, the friction element is arranged on the external periphery of the rotating shaft, and the torsion spring is elastically clamped at an outer edge of the friction element and an end of the torsion spring is fixed to main body. When the rotating shaft rotates in one direction, the torsion spring abuts the friction element to brake and decelerate the rotating shaft. With small wear and tear of the torsion spring, the service life can be extended. With a large contact area between the friction element and the rotating shaft, a good braking effect can be achieved. | 12-06-2012 |
20130169088 | MOTOR HAVING A BRAKING FUNCTION AND USED IN LINEAR ACTUATOR - The present invention provides a motor having a braking function and used in a linear actuator. The motor includes a main body, a rotation shaft, a braking means and a stopping means. The rotation shaft penetrates the center of the main body. The braking means includes a braking ring and a helical ring. The braking ring includes a plurality of curved plates. The helical ring surrounds outer edges of the curved plates. Each curved plate is put on the outer periphery of the rotation shaft. The stopping means is disposed between the main body and the braking means for restricting the rotation of any of the curved plates. By this arrangement, a better braking and decelerating function can be achieved. | 07-04-2013 |
20130186218 | LINEAR ACTUATOR AND SAFETY MECHANISM FOR THE SAME - An electric linear actuator has a guide screw and a telescopic tube. A safety mechanism for the linear actuator includes a nut, a nut sheath, a sleeve, and a torsion spring. The nut connects the guide screw. The nut sheath is fixed on one side of the nut and is provided with a plurality of bumps. One end of the sleeve is put around the nut sheath and the other end thereof is connected to the telescopic tube. The sleeve is provided with a plurality of rabbets corresponding to the bumps. The torsion spring is disposed around the nut sheath and the sleeve. When the guide screw is rotated, the nut sheath is engaged with the sleeve by embedding the bumps into the rabbets. When the sleeve stops, the bumps and the rabbets depart from engagement to make the nut sheath and the nut freely rotate against the sleeve. | 07-25-2013 |
20130198959 | CONTROL PANEL OF SICKBED HAVING A LIGHT SOURCE - A control panel of a sickbed having a light source is disposed around a sickbed and includes a casing, a light module and a control module. The light module and the control module are provided on two opposite surfaces of the casing respectively. The control module is electrically connected to the light module for controlling the height of the sickbed and an ON/OFF state of the light module. The control panel of the present invention is used to adjust the height of the sickbed and also provides illumination, so that it really demonstrates practicability and convenience. | 08-08-2013 |
20130313907 | POWER SUPPLY DEVICE FOR LINEAR ACTUATOR APPARATUS AND BATTERY MODULE THEREOF - A power supply device for a linear actuator apparatus, which includes a control module and a battery module. The power supply device further provides a battery module including a box, a primary power supply unit and a standby power supply unit. The box has a first chamber, a second chamber and a separating plate formed between the first chamber and the second chamber. The primary power supply unit is provided in the first chamber. The standby power supply unit is provided in the second chamber. | 11-28-2013 |
20130314026 | STANDBY BATTERY BOX FOR ELECTRIC CYLINDER - A standby battery box for an electric cylinder is electrically connected to a control box for driving the electric cylinder and includes a charge-discharge device and a rechargeable battery. The charge-discharge device includes a protection unit, a power conversion unit, a voltage detection unit, a control unit, a discharge unit, a display unit, and a switch unit. The rechargeable battery is electrically connected to the charge-discharge device. When a startup switch of the switch unit is pressed, the charge-discharge device delivers the electricity of the rechargeable battery into the control box. When a shutoff switch of the switch unit is pressed, the charge-discharge device does not supply power, thereby protecting the standby battery box from being exhausted. | 11-28-2013 |
20130327168 | GEAR MOTOR HAVING SAFETY MECHANISM - A gear motor having a safety mechanism includes a motor body, a speed reduction mechanism, a transmission mechanism, and a touch switch. The speed reduction mechanism includes a worm and a worm wheel drivingly engaged with the worm. The transmission mechanism includes a base fixed to the speed reduction mechanism, a lead screw rod pivotally connected to the base and rotatably driven by the worm wheel, and a nut threadedly connected to the lead screw rod. The touch switch is electrically connected to the motor body and provided aside the lead screw rod, thereby stopping the motor body when the nut contacts the touch switch. Thus, the gear motor not only controls the operation of the driven mechanism, but also allows various driven mechanisms to be mounted thereon. The assembled volume of the gear motor and the driven mechanism is reduced. | 12-12-2013 |
20140174221 | LINEAR ACTUATOR - A linear actuator includes a housing, a motor, a decelerator and an actuating rod. The housing includes an outer sleeve, a motor sleeve, a connecting sleeve, and at least a motor bolt. The connecting sleeve is connected to one end of the outer sleeve, the motor bolt longitudinally penetrating the motor sleeve and connected to the connecting sleeve. The motor is arranged in the motor sleeve. The decelerator is arranged in the motor sleeve. The decelerator is connected to the motor. The actuating rod is arranged in the outer sleeve. The actuating rod is connected to the decelerator through the motor sleeve, and the actuating rod is driven by the motor through the decelerator. The elements of the linear actuator are thereby firmly assembled by simple structure. | 06-26-2014 |
20140174225 | LINEAR ACTUATOR WITH ARM DRIVEN MECHANISM - A linear actuator ( | 06-26-2014 |
20140178124 | ELECTRICAL CYLINDER CONTROLLER WITH ROTATIONAL MECHANISM - An electrical cylinder controller with a rotational mechanism comprises a box, a pivotal element, a fixing element, and a damping member; one end of the box has a hollow tube, the hollow tube internally has a restricting block; the pivotal element penetrates through the hollow tube, the pivotal element has a pivotal-connecting section and a protruding section elongating from the pivotal-connecting section, the external portion of the protruding section has a stopping block against the restricting block; the fixing element connects with the end portion of the protruding section; and the damping member female-connects with the external portion of the protruding section and is clamped between the hollow tube and the fixing element. Therefore, the effect of applying a force to the box for rotation is achieved. | 06-26-2014 |
20140182403 | ELECTRIC ACTUATOR AND MANUAL ADJUSTMENT MECHANISM THEREOF - An electric actuator includes: an actuating shaft and a screw rod screwed to and driving the actuating shaft; a motor connecting the screw rod; a connection seat connecting the actuating shaft and including a positioning post and a rotary shaft; a coupling ring sleeved around and rotating with the positing post, and a slide slot disposed out of the coupling ring; a support ring sleeved around the rotary shaft; a cylindrical connector sleeved around the support ring and screwed to a hinge end cap and with a locking slot communicating with the slide slot and disposed out of the cylindrical connector; a knob sleeved around the cylindrical connector and the coupling ring and covering the rotary shaft, and a raised rib slidably connected to the slide slot and the locking slot and disposed in the knob. | 07-03-2014 |
20140182405 | ELECTRIC ACTUATOR AND FAST RELEASING MECHANISM THEREOF - In an electric actuator ( | 07-03-2014 |
20140196555 | LINEAR ACTUATOR - A linear actuator includes a driver ( | 07-17-2014 |
20140216186 | High-Load Linear Actuator - A high-load linear actuator includes a driving mechanism, a worm shaft, a worm wheel assembly, a lead screw, a telescopic pipe and an outer pipe. The driving mechanism includes a base and a motor. The base has a supporting portion and an accommodating portion. The motor is fixed to the supporting portion. The worm shaft extends from the motor into the supporting portion. The worm wheel assembly includes a worm wheel and two bearings for supporting the worm wheel in the accommodating portion. The worm wheel is engaged with the worm shaft. The lead screw is disposed through the worm wheel and driven by the motor for rotation. The telescopic pipe slips on the lead screw to be threadedly connected therewith. The outer pipe slips on the telescopic pipe. The rotation of the lead screw drives the telescopic pipe to linearly extend or retract relative to the outer pipe. | 08-07-2014 |
20140260730 | ACTUATOR WITH QUICK-RELEASE MECHANISM - An actuator with a quick-release mechanism includes a base ( | 09-18-2014 |
20140290403 | DUAL-SCREW LINEAR ACTUATOR - A dual-screw linear actuator includes an inner push tube, an outer push tube, a first nut part, and a second nut part. The outer push tube is sheathed on the inner push tube and axially movable on the inner push tube; the first nut part is coupled to the outer push tube and screwed to an inner screw which has a coupling disposed at a front end of the inner screw; the second nut part is coupled to the inner push tube and screwed to an outer screw, and the outer screw is hollow, and the coupling is sleeved into the outer screw for an axial movement. The inner screw drives the outer screw to rotate, such that the first and second nut parts can synchronously push the inner and outer push tubes to extend or contract, so as to improve the stroke of extension or contraction. | 10-02-2014 |
20140312726 | LINEAR TRANSMISSION CYLINDER AND DRIVING MOTOR THEREOF - A linear transmission cylinder with a driving motor includes a case, a stator disposed inside the case and a rotor having a rotary shaft disposed inside the case. The case includes a lower component and an upper component. The lower and upper components include a plurality of lower and upper ribs in an interval arrangement protruding from internal walls thereof and abutting an external wall of the stator, lower and upper shaft nests formed on rear interior walls thereof and lower and upper shaft bases formed on front interior walls thereof, such that the rotary shaft can be supported and pivoted thereon. | 10-23-2014 |
20140326089 | ACTUATOR HAVING BUFFER STRUCTURE - An actuator includes a drive screw ( | 11-06-2014 |
20140338480 | LINEAR ACTUATOR WITH SPEED-ADJUSTABLE QUICK RELEASE MECHANISM - A linear actuator ( | 11-20-2014 |
20140345404 | ACTUATOR WITH POSITION DETECTING MECHANISM - An actuator with a position detection mechanism includes a main body, a transmission mechanism, a quick-release mechanism and a position detection mechanism. The transmission mechanism includes a worm gear with protruding keys and a lead screw shaft. The quick-release mechanism is mounted onto the lead screw shaft and includes a clutch gear with key slots for disengaging or engaging with the protruding keys in order to move axially relative to the worm gear. The position detection mechanism includes a variable resistor, an actuating gear mounted on the lead screw shaft to rotate altogether therewith and a driving gear connected to the variable resistor and engaged with the actuating gear. When the worm gear disengages from the clutch gear, a particular resistor value is formed at the variable resistor; therefore, disengaged or engaged positions of the worm gear and the clutch gear can be precisely controlled. | 11-27-2014 |