Disabled assisting wheelchair with leg auxiliary stretching structure

By designing a leg assisted stretching structure, including a restraining structure and a rotating lifting structure, the problem of poor blood circulation in the legs of wheelchair users is solved, and the leg stretching and lifting without human assistance is achieved, improving convenience and comfort.

CN222899508UActive Publication Date: 2025-05-27SHANGHAI DANGANG INTELLIGENT TECH CO LTD
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Patent Information

Application Number
CN202421833095.0
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-07-31
Publication Date
2025-05-27
Estimated Expiration
2034-07-31

AI Technical Summary

Technical Problem

After sitting on the existing wheelchair for a long time, it will cause poor blood circulation in the legs and require human assistance to carry out stretching activities, which is very inconvenient.

Method used

A disabled wheelchair with a leg assisted stretching structure is designed, including a restraining structure and a rotating lifting structure. The restraining structure constrains the legs on the support plate through the rotating rod and the belt. The rotating and lifting structure drives the support plate to rotate through the rotating wheel, so that the legs can be stretched and raised.

Benefits of technology

It realizes stretching and lifting of legs without human assistance, promotes blood circulation in the legs, and improves user convenience and comfort.

✦ Generated by Eureka AI based on patent content.

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    Figure CN222899508U_ABST
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Abstract

The utility model discloses a disabled-helping wheelchair with a leg auxiliary stretching structure, which comprises a seat plate, armrests fixedly mounted on the side surface of the seat plate and a backrest, the lower end of the backrest is rotatably mounted on the upper surface of the seat plate, a pushing handle is fixedly mounted on the upper surface of the backrest, and the lower end of the backrest is rotatably mounted on the lower surface of the seat plate. The lower surface of the seat plate is rotationally connected with a tire through a connecting piece, a restraining structure is installed on the front surface of the seat plate, the restraining structure can move through a rotating rod to enable legs to be bound to a supporting plate through a binding belt, the restraining structure comprises the supporting plate, and a rotating shaft is fixedly connected to the upper end of the supporting plate. According to the disabled assisting wheelchair with the leg auxiliary stretching structure, the restraining structure is arranged, when a rotating rod moves through a sliding block, the legs are restrained through a strap, follow-up leg stretching is facilitated, deviation is avoided, the rotating lifting structure is further arranged, and rotation of a rotating wheel can control a supporting plate to drive the legs to rotate, so that the legs stretch, and blood circulation is achieved.
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Description

Technical Field

[0001] The utility model relates to the technical field of disabled-assistance wheelchairs, and particularly relates to a disabled-assistance wheelchair provided with a leg auxiliary stretching structure. Background Art

[0002] A wheelchair is an important tool for rehabilitation. It is not only a means of transportation for the physically disabled, but more importantly, it enables them to exercise their bodies and participate in social activities with the help of a wheelchair. An ordinary wheelchair generally consists of a wheelchair frame, wheels, a braking device, and a seat back.

[0003] After sitting on a wheelchair for a long time, the blood circulation in the legs will be compressed. For patients with inconvenient legs, the existing wheelchairs require the assistance of others to stretch their legs to promote blood circulation. The legs need to be stretched frequently, which is very inconvenient. Content of the Utility Model

[0004] The purpose of the utility model is to provide a disabled-assistance wheelchair provided with a leg auxiliary stretching structure, so as to solve the problem that the leg stretching activity requires artificial assistance and is very inconvenient as mentioned in the above background art.

[0005] To achieve the above purpose, the utility model provides the following technical solution: A disabled-assistance wheelchair provided with a leg auxiliary stretching structure, including a seat board, an armrest is fixedly installed on the side surface of the seat board, and further includes a backrest, the lower end of the backrest is rotatably installed on the upper surface of the seat board, a pusher is fixedly installed on the upper surface of the backrest, the lower surface of the seat board is rotatably connected with a tire through a connecting piece, a restraint structure is installed on the front surface of the seat board, and the restraint structure can move through a rotating rod so that the legs are bound to a support board through a strap.

[0006] Preferably, the restraint structure includes a support board, a rotating shaft is fixedly connected to the upper end of the support board, both ends of the rotating shaft are rotatably connected with bumps on the front surface of the seat board, a foot board is fixedly installed at the lower end of the support board, a chute is opened on the upper surface of the foot board, a slider is slidably connected to the inner wall surface of the chute, a rotating rod is rotatably connected to the upper surface of the slider, a handle is fixedly installed at the upper end of the rotating rod, a strap is wound around the outer surface of the rotating rod, the other end of the strap is fixedly installed on the front surface of a connecting plate, the connecting plate is fixedly installed on the front surface of the support board, a convex plate is installed on the front surface of the support board, and a clip is installed on the upper surface of the convex plate.

[0007] By adopting the above technical solution, the rotating rod is pushed through the handle, so that the rotating rod slides through the slider to bind the strap to the legs.

[0008] Preferably, an arc-shaped groove is provided on the front surface of the support board.

[0009] By adopting the above technical solution, it is convenient to place the legs.

[0010] Preferably, there are 2 symmetrically arranged chute.

[0011] Adopting the above technical solution facilitates the auxiliary binding of both legs.

[0012] Preferably, the support plate is connected with a rotating and lifting structure, and the rotating and lifting structure can drive the leg to stretch by rotating the rotating wheel.

[0013] Adopting the above technical solution enables the legs to stretch straight.

[0014] Preferably, the rotating and lifting structure includes a block rod. Both ends of the rotating shaft are fixedly connected with a block rod. The outer surface of the rotating shaft is fixedly connected with a support plate. Both ends of the rotating shaft are rotatably connected with the convex plate on the front surface of the seat plate. A toothed block column is slidably installed on the outer surface of the block rod. A rotating wheel is fixedly installed on the outer surface of the toothed block column. Teeth are provided on the outer surface of the toothed block column. An arc-shaped groove is formed on the front surface of the support leg of the seat plate, and teeth are provided on the inner wall surface of the arc-shaped groove.

[0015] Adopting the above technical solution, rotating the rotating wheel makes the support plate drive the leg to rotate and straighten, promoting blood circulation in the leg.

[0016] Preferably, the teeth on the arc-shaped groove are correspondingly engaged with the teeth provided on the outer surface of the toothed block column.

[0017] Adopting the above technical solution, after the arc-shaped groove is engaged with the toothed block column, the support plate can maintain an angle.

[0018] Compared with the prior art, the beneficial effects of the present utility model are as follows: The disabled-assisting wheelchair provided with a leg auxiliary stretching structure:

[0019] 1. The disabled-assisting wheelchair provided with a leg auxiliary stretching structure is provided with a restraint structure. Hold the handle with hand, so that the rotation feeling drives the slider to move in the chute, so that the rotation feeling moves from the outside of the leg to the inside of the leg. At the same time, the strap on the outer surface of the rotating rod will restrain the leg on the support plate to prevent the leg from shifting during stretching.

[0020] 2. Further, rotating the rotating rod can tighten the strap, making the leg restraint space appropriate, and then using the clip to clamp the rotating rod to fix the rotating rod, which is convenient for subsequent lifting of the leg to promote blood circulation in the leg.

[0021] 3. Further, rotate the rotating wheel, and then drive the rotating shaft to rotate through the rotating wheel, so that the support plate rotates. The support plate will drive the leg to rotate, and then the leg stretches. When it is necessary to keep the angle of the support plate, push the toothed block column to engage with the block of the arc-shaped groove, so that the support plate can maintain the rotation angle. Brief Description of the Drawings

[0022] Figure 1 It is a schematic diagram of the axonometric surface structure of the present utility model;

[0023] Figure 2 It is a schematic diagram of the belt unfolding structure of the present utility model;

[0024] Figure 3 It is a schematic diagram of the axonometric surface structure of the support plate of the present utility model;

[0025] Figure 4 It is a schematic diagram of the top view surface structure of the foot plate of the present utility model;

[0026] Figure 5 It is a schematic diagram of the front cross-sectional structure of the present utility model;

[0027] Figure 6 It is a schematic diagram of the axonometric surface structure of the tooth block column of the present utility model.

[0028] In the figure: 1, seat plate; 2, armrest; 3, backrest; 4, tire; 5, pusher; 6, support plate; 7, foot plate; 8, chute; 9, rotating rod; 10, slider; 11, handle; 12, belt; 13, connecting plate; 14, clip; 15, rotating shaft; 16, block rod; 17, tooth block column; 18, runner; 19, arc groove. Detailed Description of the Preferred Embodiments

[0029] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments in the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0030] Please refer to Figure 1-6 , the present utility model provides a technical solution: a disability assistance wheelchair provided with a leg auxiliary stretching structure, including a seat plate 1, an armrest 2, a backrest 3, a tire 4, a pusher 5, a support plate 6, a foot plate 7, a chute 8, a rotating rod 9, a slider 10, a handle 11, a belt 12, a connecting plate 13, a clip 14, a rotating shaft 15, a block rod 16, a tooth block column 17, a runner 18, and an arc groove 19.

[0031] Embodiment 1

[0032] The disability assistance wheelchair provided with a leg auxiliary stretching structure is provided with a restraint structure, and the belt 12 can restrain the legs through the rotating rod 9, which is convenient for subsequent stretching. Specifically:

[0033] The side surface of the seat plate 1 is fixedly installed with an armrest 2, and it further includes a backrest 3. The lower end of the backrest 3 is rotatably installed on the upper surface of the seat plate 1. The upper surface of the backrest 3 is fixedly installed with a pusher 5. The lower surface of the seat plate 1 is rotatably connected with a tire 4 through a connecting piece. The front surface of the seat plate 1 is equipped with a restraint structure. The restraint structure can move through a rotating rod 9 so that the legs are bound to the support plate 6 through a strap 12. The restraint structure includes a support plate 6. The upper end of the support plate 6 is fixedly connected with a rotating shaft 15. Both ends of the rotating shaft 15 are rotatably connected with the convex blocks on the front surface of the seat plate 1. The lower end of the support plate 6 is fixedly installed with a foot plate 7. A chute 8 is opened on the upper surface of the foot plate 7. The inner wall surface of the chute 8 is slidably connected with a slider 10. The upper surface of the slider 10 is rotatably connected with a rotating rod 9. The upper end of the rotating rod 9 is fixedly installed with a handle 11. The outer surface of the rotating rod 9 is wound and connected with a strap 12. The other end of the strap 12 is fixedly installed on the front surface of a connecting plate 13. The connecting plate 13 is fixedly installed on the front surface of the support plate 6. A convex plate is installed on the front surface of the support plate 6, and a clip 14 is installed on the upper surface of the convex plate. An arc-shaped groove is arranged on the front surface of the support plate 6. The chute 8 is symmetrically arranged in two;

[0034] When the disabled wheelchair with the leg auxiliary stretching structure is in use, as Figure 1 shown, the user sits on the upper surface of the seat plate 1. The armrests 2 on both side surfaces of the seat plate 1 can support the user. The user's feet are placed on the upper surface of the foot plate 7, and the calves will lean against the arc-shaped groove of the support plate 6. The backrest 3 is rotatably connected to the rear surface of the seat plate 1. A pusher 5 is installed on the upper surface of the backrest 3. The wheelchair can be pushed through the pusher 5 to make the tire 4 rotate for movement. When the user has been sitting for a long time and the blood circulation in the legs is not smooth and needs to be stretched, as Figure 3 shown, there are two groups of rotating rods 9 arranged on the upper surface of the foot plate 7. First, hold the handles 11 at the upper ends of the rotating rods 9 respectively, so that the handles 11 drive the rotating rods 9 to move, so that the lower ends of the rotating rods 9 drive the sliders 10 to slide, so that the sliders 10 slide in the chutes 8, so that the two rotating rods 9 move to the middle of the two legs. The rotating rods 9 and the sliders 10 are rotatably connected, so rotating the rotating rods 9 can make the straps 12 wound around the outer surface of the rotating rods 9 unfold. The other end of the strap 12 is fixedly connected to the connecting plate 13, and the connecting plate 13 is installed on the front surface of the support plate 6, so the strap 12 will bind the legs to the support plate 6 to prevent the legs from shifting on the support plate 6, which is convenient for the subsequent rotation of the support plate 6 to drive the legs to stretch. When the rotating rods 9 move to the middle of the two legs, the clip 14 installed on the upper surface of the convex plate on the front surface of the support plate 6 clamps the rotating rods 9 to complete the fixation.

[0035] Embodiment 2

[0036] The disabled wheelchair with the leg auxiliary stretching structure is also provided with a rotating and lifting structure. By controlling the rotation of the rotating wheel 18, the support plate 6 drives the legs to rotate. Specifically:

[0037] The support plate 6 is connected with a rotating and lifting structure. The rotating and lifting structure can drive the leg to stretch by rotating the rotating wheel 18. The rotating and lifting structure includes a clamping block rod 16. Both ends of the rotating shaft 15 are fixedly connected with the clamping block rod 16. The outer surface of the rotating shaft 15 is fixedly connected with the support plate 6. Both ends of the rotating shaft 15 are rotatably connected with the convex plates on the front surface of the seat plate 1. A toothed block column 17 is slidably installed on the outer surface of the clamping block rod 16. A rotating wheel 18 is fixedly installed on the outer surface of the toothed block column 17. Teeth are provided on the outer surface of the toothed block column 17. An arc-shaped groove 19 is formed on the front surface of the support leg of the seat plate 1. Teeth are provided on the inner wall surface of the arc-shaped groove 19. The teeth in the arc-shaped groove 19 are correspondingly engaged with the teeth provided on the outer surface of the toothed block column 17.

[0038] Further, when the leg needs to stretch, rotate the rotating wheels 18 on both sides with both hands, so that the rotating wheels 18 drive the clamping block rod 16 to rotate through the toothed block column 17. The clamping block rod 16 is fixedly connected with the rotating shaft 15, and the rotating shaft 15 is fixedly connected with the support plate 6. Therefore, the rotating wheels 18 will drive the support plate 6 to rotate, so that the support plate 6 and the foot plate 7 drive the leg to rotate upward. The rotation angle can be controlled by the rotating wheel 18, thereby driving the blood circulation of the leg. When it is necessary to keep the rotation angle, since the toothed block column 17 is slidably installed on the outer surface of the clamping block rod 16, pushing the toothed block column 17 inward will make the side of the toothed block column 17 with teeth enter the arc-shaped groove 19 formed on the front surface of the support leg of the seat plate 1, so that the teeth in the arc-shaped groove 19 are engaged with the teeth provided on the outer surface of the toothed block column 17, fixing the angle of the support plate 6, enabling the leg to maintain a comfortable state, and at the same time, cooperating with the restraint structure can prevent the leg from deviating when rotating.

[0039] Working principle: When using the disabled-assisting wheelchair provided with the leg auxiliary stretching structure, a restraint structure is provided. By moving and rotating the rotating rod 9, the strap 12 restrains the leg on the support plate 6. A rotating and lifting structure is also provided. The rotation of the rotating wheel 18 can control the rotation of the support plate 6, so that the support plate 6 drives the leg to stretch, increasing the overall practicality.

[0040] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A wheelchair for the disabled with a leg auxiliary stretching structure, comprising a seat plate (1), a side surface of the seat plate (1) having an armrest (2) fixedly mounted thereon, characterized in that: The invention also comprises a backrest (3), the lower end of which is rotatably mounted on the upper surface of the seat plate (1), a push handle (5) being fixedly mounted on the upper surface of the backrest (3), the lower surface of the seat plate (1) being rotatably connected to a tire (4) via a connecting piece, and a restraining structure being mounted on the front surface of the seat plate (1), the restraining structure being movable via a rotating rod (9) so that the legs are bound to the support plate (6) via a strap (12).

2. The wheelchair for assisting the disabled with a leg-assisting stretching structure according to claim 1, characterized in that: The restraining structure comprises a support plate (6), the upper end of the support plate (6) is fixedly connected with a rotating shaft (15), the two ends of the rotating shaft (15) are rotatably connected to the protrusions on the front surface of the seat plate (1), the lower end of the support plate (6) is fixedly installed with a foot plate (7), the upper surface of the foot plate (7) is provided with a slide groove (8), the inner wall surface of the slide groove (8) is slidably connected with a slider (10), the upper surface of the slider (10) is rotatably connected with a rotating rod (9), the upper end of the rotating rod (9) is fixedly installed with a handle (11), the outer surface of the rotating rod (9) is wrapped with a strap (12), the other end of the strap (12) is fixedly installed on the front surface of the connecting plate (13), the connecting plate (13) is fixedly installed on the front surface of the support plate (6), the front surface of the support plate (6) is installed with a convex plate, and the upper surface of the convex plate is installed with a clip (14).

3. The wheelchair for assisting the disabled with a leg-assisting stretching structure according to claim 2, characterized in that: The front surface of the support plate (6) is provided with an arc-shaped groove.

4. The wheelchair for assisting the disabled with a leg-assisting stretching structure according to claim 2, characterized in that: Two slide grooves (8) are symmetrically arranged.

5. The wheelchair for assisting the disabled with a leg-assisting stretching structure according to claim 2, characterized in that: The support plate (6) is connected to a rotating lifting structure, and the rotating lifting structure can enable the support plate (6) to drive the legs to stretch by rotating the rotating wheel (18).

6. The wheelchair for assisting the disabled with a leg-assisting stretching structure according to claim 5, characterized in that: The rotating lifting structure comprises a block rod (16), both ends of the rotating shaft (15) are fixedly connected to the block rod (16), the outer surface of the rotating shaft (15) is fixedly connected to the support plate (6), the two ends of the rotating shaft (15) are rotatably connected to the convex plate on the front surface of the seat plate (1), a tooth block column (17) is slidably mounted on the outer surface of the block rod (16), a rotating wheel (18) is fixedly mounted on the outer surface of the tooth block column (17), a tooth block is arranged on the outer surface of the tooth block column (17), and an arc groove (19) is provided on the front surface of the support leg of the seat plate (1), and a tooth block is arranged on the inner wall surface of the arc groove (19).

7. The wheelchair for assisting the disabled with a leg-assisting stretching structure according to claim 6, characterized in that: The tooth block of the arc-shaped groove (19) is correspondingly engaged with a tooth block provided on the outer surface of the tooth block column (17).