Wheelchair pedal recovery control device

Abstract

The utility model relates to the technical field of wheelchairs, in particular to a wheelchair pedal recycling control device which comprises a supporting main beam, a front wheel and a rear wheel are installed at the front end and the rear end of the two sides of the outer wall of the supporting main beam respectively, and a pedal body for placing the feet of a person is arranged in the center of the front end of the outer wall of the supporting main beam. According to the foldable wheelchair, the pedal main body is connected with the side supporting frame through the arranged control assembly, when a person controls the wheelchair to be folded or unfolded through the telescopic electric cylinder, the pedal main body can be folded or unfolded through the telescopic electric cylinder, and the pedal main body can be folded or unfolded through the telescopic electric cylinder. The arranged pedal main body can correspondingly stretch out or retract under the action of the control assembly, so that the pedal main body can be stored when a person folds the wheelchair, the pedal main body can stretch out when the wheelchair is unfolded, the pedal main body and the pedal main body are linked, and the person can conveniently use the wheelchair.

Description

Technical Field

[0001] The utility model relates to the technical field of wheelchairs, in particular to a control device for recycling a wheelchair footrest. Background Art

[0002] A wheelchair is an auxiliary tool for helping people with mobility impairments move. It usually consists of a seat cushion, a backrest, and a pair of wheels. Some wheelchairs are also equipped with armrests and footrests. Wheelchairs can be manually pushed or electric, facilitating users to move indoors and outdoors.

[0003] At the front end of existing electric wheelchairs, there are often footrests for placing the patient's feet. In order to facilitate the placement of the patient's feet, the footrests often need to extend to the front end of the wheelchair. When the user needs to fold the wheelchair later, the extended footrests will cause obstacles, so they also need to be folded. In existing wheelchairs, the storage and folding of the footrests and the overall folding of the wheelchair are usually set up as two separate structures, which do not interfere with each other. However, the user needs to operate and fold them separately, which increases the operation steps when folding or unfolding the wheelchair. Therefore, there are certain deficiencies.

[0004] In summary, it is necessary to invent a control device for recycling a wheelchair footrest. Content of the Utility Model

[0005] Therefore, the utility model provides a control device for recycling a wheelchair footrest to solve the problem that in existing wheelchairs, the storage and folding of the footrests and the overall folding of the wheelchair are usually set up as two separate structures, which do not interfere with each other. However, the user needs to operate and fold them separately, which increases the operation steps when folding or unfolding the wheelchair.

[0006] To achieve the above object, the utility model provides the following technical solution: A control device for recycling a wheelchair footrest, including a supporting main beam. On both sides of the outer wall of the supporting main beam, a front wheel and a rear wheel are respectively installed at the front and rear ends. At the center of the front end of the outer wall of the supporting main beam, there is a footrest main body for placing the user's feet. On the opposite side of the supporting main beam and behind the footrest main body, there is a control component for recycling the footrest main body.

[0007] Preferably, the control component includes a telescopic electric cylinder. At the rear end of the outer wall of the telescopic electric cylinder, a fixed rod is fixed through a U-shaped fixing bracket. Both ends of the fixed rod are fixed to the front ends of both sides of the inner wall of the supporting main beam. The telescopic electric cylinder is hinged with the U-shaped fixing bracket.

[0008] Preferably, the output shaft of the telescopic electric cylinder is rotatably connected to a folding frame. A connecting rod is fixed to the upper end of the folding frame. Side rotating support plates are fixed to both outer walls of the supporting main beam at positions corresponding to the connecting rod. Side support frames are rotatably connected to the outer walls of the side rotating support plates at positions corresponding to the connecting rod. Both ends of the connecting rod are rotatably connected to the outer walls of the opposite sides of the side support frames.

[0009] Preferably, seats are fixed to the outer wall tops of the side support frames through brackets. A backrest is rotatably connected to the rear side of the outer wall of the seat.

[0010] Preferably, connecting rods are rotatably connected to the outer walls of the side support frames and the side rotating support plates on the side close to the telescopic electric cylinder. A rotating pin a is arranged at the bottom of the outer wall of the opposite side of the support frame. Short pin plates a are rotatably connected to the outer walls of the side support frame and the side rotating support plate far from the opposite side of the rotating pin a. Adjacent two short pin plates a are rotatably connected through a pin shaft on the opposite side.

[0011] Preferably, transmission connecting rods a are arranged on the connection parts of the short pin plates a on the side close to the telescopic electric cylinder. The ends of the transmission connecting rods a are rotatably connected to the pin shaft. The other ends of the transmission connecting rods a are rotatably connected to rotating connecting rods b. The outer wall side ends of the two rotating connecting rods b on the side close to the supporting main beam are rotatably connected to the side wall of the supporting main beam through transmission pins b.

[0012] Preferably, the other ends of the rotating connecting rods b are rotatably connected to transmission connecting rods c. The ends of the transmission connecting rods c far from the rotating connecting rods b are rotatably connected to transmission connecting rods d. The rear ends of the transmission connecting rods d are fixed to the inner wall side ends of the supporting main beam through a support rod a. The transmission connecting rods d are rotatably connected to the support rod a. The ends of the transmission connecting rods d far from the support rod a are rotatably connected to bearing plates. The ends of the bearing plates far from the transmission connecting rods d are fixed to both sides of the bottom end of the outer wall of the foot pedal main body.

[0013] Preferably, curved connecting frames are rotatably connected to the bottom ends of the outer walls of the foot pedal main body on the outer sides of the bearing plates through bolts. The upper ends of the curved connecting frames are rotatably connected to support rods b through bolts. The bottom ends of the support rods b are fixed to the front end of the outer wall top of the supporting main beam.

[0014] The beneficial effects of the present utility model are:

[0015] In the present utility model, the foot pedal main body is connected to the side support frame through the arranged control component. When a person controls the wheelchair to fold or open through the telescopic electric cylinder, the arranged foot pedal main body can be extended or retracted correspondingly under the action of the control component, so that the foot pedal main body can also be stored when the person folds the wheelchair, and the foot pedal main body will also extend when the wheelchair is opened, making the two linked, which is convenient for the person to use. Description of the Drawings

[0016] Figure 1 is a schematic diagram of the overall structure in the front view direction of the present utility model;

[0017] Figure 2 for the present utility model Figure 1 is a three-dimensional structure schematic diagram of the control component in the front view direction in the present utility model;

[0018] Figure 3 is a three-dimensional structure schematic diagram of the control component in the front view direction in the present utility model;

[0019] Figure 4 is a partial three-dimensional structure schematic diagram of the present utility model in the top view direction;

[0020] Figure 5 is a partial three-dimensional structure schematic diagram of the present utility model in the bottom view direction;

[0021] Figure 6 is a three-dimensional structure schematic diagram of the control component in the bottom view direction in the present utility model.

[0022] In the figure: 100, support main beam; 200, seat; 210, backrest; 300, telescopic electric cylinder; 310, folding frame; 320, side support frame; 321, connecting rod; 330, side rotating support plate; 340, rotating pin a; 341, short pin plate a; 342, transmission connecting rod a; 343, rotating connecting rod b; 344, transmission connecting rod c; 345, transmission connecting rod d; 346, bearing plate; 347, curved connecting frame; 400, footrest main body. Specific embodiments

[0023] The following is a description of the preferred embodiments of the present utility model with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present utility model and are not used to limit the present utility model.

[0024] Referring to the attached Figures 1-6 , a wheelchair footrest recycling control device provided by the present utility model includes a support main beam 100. Front wheels and rear wheels are respectively installed at the front and rear ends on both sides of the outer wall of the support main beam 100. A footrest main body 400 for placing the feet of a person is provided at the center of the front end of the outer wall of the support main beam 100;

[0025] On the opposite side of the supporting main beam 100 and at the rear side of the footrest main body 400, a control component for recycling the footrest main body 400 is provided. The control component includes a telescopic electric cylinder 300. A fixing rod is fixed to the rear end of the outer wall of the telescopic electric cylinder 300 through a U-shaped fixing frame. Both ends of the fixing rod are fixed to the front ends of both sides of the inner wall of the supporting main beam 100. The telescopic electric cylinder 300 is hinged to the U-shaped fixing frame. The U-shaped fixing frame and the fixing rod are provided to fix the position of the telescopic electric cylinder 300 to the supporting main beam 100, and at the same time, enable the telescopic electric cylinder 300 to rotate when folding the wheelchair, avoiding jamming. The output shaft of the telescopic electric cylinder 300 is rotatably connected to a folding frame 310. A connecting rod 321 is fixed to the upper end of the folding frame 310. Side rotating support plates 330 are fixed to both sides of the outer wall of the supporting main beam 100 at positions corresponding to the connecting rod 321. Side support frames 320 are rotatably connected to the outer walls of the side rotating support plates 330 at positions corresponding to the connecting rod 321. Both ends of the connecting rod 321 are rotatably connected to the outer walls of the opposite sides of the side support frames 320. Specifically, the folding frame 310 is provided to fix the output end of the telescopic electric cylinder 300 to the outer wall of the connecting rod 321. The folding frame 310 can be bent when folding the wheelchair, avoiding jamming during wheelchair folding. The top ends of the outer walls of the side support frames 320 are fixed with a seat 200 through brackets. A backrest 210 is rotatably connected to the rear side of the outer wall of the seat 200;

[0026] On one side of the side support frame 320 and the side rotating support plate 330 close to the telescopic electric cylinder 300, connecting rods 321 are rotatably connected. At the bottom of the opposite side outer walls of the support frame 320, rotation pins a340 are provided. On the opposite side outer walls of the rotation pins a340 away from the side support frame 320 and the side rotating support plate 330, short pin plates a341 are rotatably connected. The opposite sides of two adjacent short pin plates a341 are rotatably connected by a pin shaft. The rotation pins a340 and the short pin plates a341 are provided to be bent when the connecting rod 321 pulls the side support frame 320 to move, so that the transmission connecting rod a342 can pull the pedal main body 400 to move. On the connection part of the short pin plates a341 and on the side close to the telescopic electric cylinder 300, transmission connecting rods a342 are provided. The ends of the transmission connecting rods a342 are rotatably connected to the pin shaft. The other ends of the transmission connecting rods a342 are rotatably connected to rotation connecting rods b343. On the outer side ends of the outer walls of the two rotation connecting rods b343 and on the side close to the support main beam 100, they are rotatably connected to the side wall of the support main beam 100 through transmission pins b. The provided rotation connecting rods b343 can rotate on the side wall of the support main beam 100 through the transmission pins b, and the front end of the transmission connecting rod a342 can pull the bottom end of the rotation connecting rod b343 to rotate. And the upper end of the provided rotation connecting rod b343 can pull the transmission connecting rod c344 to rotate. The other ends of the rotation connecting rods b343 are rotatably connected to transmission connecting rods c344. The ends of the transmission connecting rods c344 away from the rotation connecting rods b343 are rotatably connected to transmission connecting rods d345. The rear ends of the transmission connecting rods d345 are fixed to the inner side ends of the side walls of the support main beam 100 through support rods a. The transmission connecting rods d345 are rotatably connected to the support rods a. The provided support rods a are to enable the transmission connecting rods d345 to rotate at the top of the support main beam 100. And the upper ends of the provided rotation connecting rods b343 can pull the transmission connecting rods c344 and the transmission connecting rods d345 to rotate under the action of the transmission connecting rod a342. The ends of the transmission connecting rods d345 away from the support rods a are rotatably connected to bearing plates 346. The ends of the bearing plates 346 away from the transmission connecting rods d345 are fixed to both sides of the bottom end of the outer wall of the pedal main body 400. When the transmission connecting rods d345 rotate, they can pull the pedal main body 400 to extend or retract at the bottom of the wheelchair through the bearing plates 346. On the outer walls of the bottom ends of the pedal main body 400 and on the outer sides of the bearing plates 346, curved connecting frames 347 are rotatably connected by bolts. The upper ends of the curved connecting frames 347 are rotatably connected by bolts to support rods b. The bottom ends of the support rods b are fixed to the front ends of the outer wall tops of the support main beam 100. The provided curved connecting frames 347 are to support both sides of the bottom end of the outer wall of the pedal main body 400 and improve the stability of the pedal main body 400 after extension.

[0027] The usage process of the present utility model is as follows: First, when a person folds the wheelchair, the telescopic electric cylinder 300 can control the output shaft to extend, so that the folding frame 310 can rotate backward, and the upper end of the folding frame 310 can pull the side support frame 320 to rotate downward through the connecting rod 321. When the side support frame 320 rotates downward, the rotation pin a 340 and the short pin plate a 341 will cause the transmission link a 342 to extend forward and downward. When the transmission link a 342 extends, its front end will push the bottom end of the rotating link b 343 to move forward, so that the upper end of the rotating link b 343 will pull the transmission link c 344 to move backward, and the front end of the transmission link c 344 will be recycled toward the bottom of the wheelchair through the transmission link d 345 and the bearing plate 346, thereby completing the storage of the footrest main body 400. When a person opens the wheelchair, the telescopic electric cylinder 300 can control its output shaft to contract, so that the side support frame 320 stands up, and the footrest main body 400 can extend forward under the action of the transmission link a 342, facilitating the person to step on.

[0028] The above are only the preferred embodiments of the present utility model. Any person skilled in the art may modify the present utility model by using the technical solutions described above or modify it into an equivalent technical solution. Therefore, any simple modification or equivalent replacement made according to the technical solutions of the present utility model falls within the scope of protection required by the present utility model.

Claims

1. A wheelchair pedal recovery control device, comprising a supporting main beam (100), front wheels and rear wheels are respectively installed at the front and rear ends of the outer wall of the supporting main beam (100), and a pedal body (400) for placing the feet of a person is arranged at the center of the front end of the outer wall of the supporting main beam (100), characterized in that: A control component for recovering the pedal body (400) is provided on the opposite side of the supporting main beam (100) and located at the rear side of the pedal body (400), the control component comprising a telescopic electric cylinder (300), a fixing rod being fixed to the rear end of the outer wall of the telescopic electric cylinder (300) via a U-shaped fixing frame, the two ends of the fixing rod being fixed to the front ends of both sides of the inner wall of the supporting main beam (100), and the telescopic electric cylinder (300) being hinged to the U-shaped fixing frame.

2. A wheelchair pedal recovery control device according to claim 1, characterized in that: The output shaft of the telescopic electric cylinder (300) is rotatably connected to a folding frame (310); a connecting rod (321) is fixed to the upper end of the folding frame (310); side rotating support plates (330) are fixed to both sides of the outer wall of the supporting main beam (100) and at positions corresponding to the connecting rod (321); the outer wall of the side rotating support plate (330) and at positions corresponding to the connecting rod (321) are rotatably connected to a side support frame (320); and both ends of the connecting rod (321) are rotatably connected to the outer wall of the side support frame (320) on the opposite side.

3. A wheelchair pedal recovery control device according to claim 2, characterized in that: The top end of the outer wall of the side support frame (320) is fixed with a seat (200) via a bracket, and the rear side of the outer wall of the seat (200) is rotatably connected with a backrest (210).

4. A wheelchair pedal recovery control device according to claim 3, characterized in that: The outer walls of the side support frame (320) and the side rotating support plate (330) close to the telescopic electric cylinder (300) are both rotatably connected with a connecting rod (321); a rotating pin a (340) is provided at the bottom of the outer wall on the opposite side of the support frame (320); the outer walls of the side support frame (320) and the side rotating support plate (330) are both rotatably connected with a short pin plate a (341); and the opposite sides of two adjacent short pin plates a (341) are rotatably connected via a pin shaft.

5. A wheelchair pedal recovery control device according to claim 4, characterized in that: A transmission link a (342) is provided at the connection point of the short pin plate a (341) and on the side close to the telescopic electric cylinder (300), the end of the transmission link a (342) is rotatably connected to the pin shaft, and the other end of the transmission link a (342) is rotatably connected to a rotating link b (343), and the outer wall side ends of the two rotating links b (343) and the side close to the supporting main beam (100) are rotatably connected to the side wall of the supporting main beam (100) through the transmission pin b.

6. A wheelchair pedal recovery control device according to claim 5, characterized in that: The other end of the rotating link b (343) is rotatably connected to a transmission link c (344), and the end of the transmission link c (344) away from the rotating link b (343) is rotatably connected to a transmission link d (345), and the rear end of the transmission link d (345) is fixed to the inner wall side end of the supporting main beam (100) through the support rod a, and the transmission link d (345) is rotatably connected to the support rod a, and the end of the transmission link d (345) away from the support rod a is rotatably connected to a bearing plate (346), and the end of the bearing plate (346) away from the transmission link d (345) is fixed to both sides of the bottom end of the outer wall of the pedal body (400).

7. A wheelchair pedal recovery control device according to claim 6, characterized in that: The bottom end of the outer wall of the pedal body (400) and located on the outer side of the bearing plate (346) are rotatably connected to a curved connecting frame (347) via bolts, and the upper end of the curved connecting frame (347) is rotatably connected to a support rod b via bolts, and the bottom end of the support rod b is fixed to the front end of the top end of the outer wall of the supporting main beam (100).

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