A foldable wheelchair

Abstract

This invention provides a foldable wheelchair, including a chair frame, casters, a backrest assembly, a seat cushion assembly, a folding assembly, and a cushioning assembly. There are two chair frames, each equipped with casters. The two chair frames are connected by the folding assembly. The backrest assembly is detachably and rotatably connected between the two chair frames. The seat cushion assembly is detachably connected between the two chair frames. One end of the cushioning assembly is rotatably connected to a chair frame, and the other end is rotatably connected to the backrest assembly. The folding assembly includes a folding support base, scissor arms, and a folding pivot. The scissor arms are rotatably connected to the two chair frames on both sides in a first direction. The folding pivot is movably connected to the folding support base and can move in a second direction, which is orthogonal to the first direction. The middle part of the scissor arms is rotatably connected to the folding support base and the folding pivot. This foldable wheelchair offers better folding performance and improved riding comfort.

Description

Technical Field

[0001] This utility model relates to the field of wheelchair technology, specifically to a foldable wheelchair. Background Technology

[0002] Wheelchairs are an important tool to assist patients in treatment and rehabilitation. They are not only a means of transportation for people with physical disabilities, but more importantly, they enable them to exercise and participate in social activities. A typical wheelchair consists of a frame, wheels, and a backrest, and has basic riding and mobility functions.

[0003] Wheelchairs are generally quite large, and folding mechanisms are typically used to reduce their size for easier storage and transport. Existing foldable wheelchairs generally use folding mechanisms, which reduce size to some extent, but the folded wheelchair still occupies a significant amount of space, and the folding effect is not ideal. Furthermore, the riding comfort of existing foldable wheelchairs still has room for improvement. Utility Model Content

[0004] The purpose of this invention is to provide a foldable wheelchair, which aims to solve the problems of poor folding effect and insufficient riding comfort of existing foldable wheelchairs.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A foldable wheelchair is provided, including a frame, wheels, backrest assembly, seat cushion assembly, folding assembly, and cushioning assembly;

[0007] The chair frame consists of two frames, each equipped with a caster wheel. The two frames are connected by a folding assembly. The backrest assembly is detachably and rotatably connected between the two frames. The seat cushion assembly is detachably connected between the two frames. One end of the cushioning assembly is rotatably connected to the frame, and the other end is rotatably connected to the backrest assembly.

[0008] The folding assembly includes a folding support base, a scissor frame, and a folding movable shaft. The two sides of the scissor frame are rotatably connected to the two chair frames respectively in a first direction. The folding movable shaft is movably connected to the folding support base and can move along a second direction, which is orthogonal to the first direction. The middle part of the scissor frame is rotatably connected to the folding support base and the folding movable shaft.

[0009] Optionally, the folding assembly further includes a locking post and a push plate. The locking post is disposed on the folding support base, the folding movable shaft is provided with a locking hole, and the push plate is connected to the locking post to drive the locking post to be inserted into the locking hole.

[0010] Optionally, the cushioning assembly includes a hydraulic damper, one end of which is rotatably connected to the end of the chair frame, and the other end of which is rotatably connected to the backrest assembly.

[0011] Optionally, the backrest assembly includes a connecting tube, a first support plate, and a backrest cushion. The end of the connecting tube is rotatably connected to the chair frame, and the middle of the connecting tube is rotatably connected to the hydraulic buffer. The first support plate is connected to the connecting tube, and the backrest cushion is disposed on the first support plate.

[0012] Optionally, the chair frame includes a first frame and a second frame, the connecting pipe is rotatably connected to the first frame, one end of the first frame is rotatably connected to the second frame, the middle part of the first frame is rotatably connected to one end of the hydraulic buffer, and the other end of the hydraulic buffer is rotatably connected to the second frame.

[0013] Optionally, the seat cushion assembly includes a second support plate and a seat cushion, the second support plate being connected to the first frame and the seat cushion being disposed on the second support plate.

[0014] Optionally, the foldable wheelchair further includes a foot pedal assembly, which includes a foot pedal tube and a foot pedal. One end of the foot pedal tube is rotatably connected to the first frame, and the other end of the foot pedal tube is rotatably connected to the foot pedal.

[0015] Optionally, the foot pedal assembly further includes a leg pad disposed on the foot pedal tube.

[0016] Optionally, the foldable wheelchair also includes casters mounted on the chair frame.

[0017] Optionally, the foldable wheelchair also includes support wheels disposed on the chair frame.

[0018] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0019] The foldable wheelchair provided by this utility model achieves its folding function through a folding component. Specifically, the scissor arm can be folded by pulling the folding pivot, making folding more convenient. Furthermore, most existing foldable wheelchairs fold longitudinally, with the wheels generally in contact with the ground. Therefore, the folded wheelchair still occupies a significant amount of space, and it's inconvenient to place other items on top, resulting in lower space utilization. Unlike existing foldable wheelchairs, the folding direction of this utility model is lateral, reducing the space occupied on the sides and improving space utilization. Compared to existing folding methods, the folding effect of this utility model is superior. In addition, the foldable wheelchair provided by this utility model also includes a cushioning component. When adjusting the backrest assembly, the cushioning component provides good cushioning, improving the user's comfort during backrest adjustment. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This is a structural schematic diagram of the foldable wheelchair of this utility model;

[0022] Figure 2 This is a structural schematic diagram of the foldable wheelchair of this utility model from another angle;

[0023] Figure 3 This is a side view structural diagram of the foldable wheelchair of this utility model;

[0024] Figure 4 This is a schematic diagram of the folding assembly of the foldable wheelchair of this utility model.

[0025] In the diagram: 1. Chair frame; 11. First frame; 12. Second frame; 13. Armrest; 2. Casters; 3. Backrest assembly; 31. Connecting tube; 32. First support plate; 33. Backrest cushion; 34. Handle; 35. Headrest; 4. Seat cushion assembly; 41. Second support plate; 42. Seat cushion; 5. Folding assembly; 51. Folding support base; 52. Scissor bracket; 53. Folding pivot; 54. Locking post; 55. Push plate; 6. Cushion assembly; 7. Foot pedal assembly; 71. Foot pedal tube; 72. Foot pedal; 73. Leg pad; 8. Casters; 9. Support casters. Detailed Implementation

[0026] The technical solutions in the embodiments of this utility model will be clearly and completely described below. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0027] In the description of this utility model, it should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0028] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined with "first" or "second" may explicitly or implicitly include one or more of that feature.

[0029] The following is combined Figures 1 to 4 This invention describes a foldable wheelchair.

[0030] like Figures 1 to 4 As shown, this utility model provides a foldable wheelchair, including a chair frame 1, wheels 2, a backrest assembly 3, a seat cushion assembly 4, a folding assembly 5, and a cushioning assembly 6.

[0031] For ease of explanation, in this embodiment, each orientation is as follows: Figure 1 As shown, the first direction is left and right, and the second direction is front and back.

[0032] Specifically, there are two chair frames 1, each equipped with a caster wheel 2. The two chair frames 1 are connected by a folding assembly 5. The backrest assembly 3 is detachably and rotatably connected between the two chair frames 1. The seat cushion assembly 4 is detachably connected between the two chair frames 1. One end of the cushioning assembly 6 is rotatably connected to the chair frame 1, and the other end of the cushioning assembly 6 is rotatably connected to the backrest assembly 3.

[0033] Furthermore, the folding assembly 5 includes a folding support base 51, a scissor frame 52, and a folding movable shaft 53. The scissor frame 52 is rotatably connected to the two chair frames 1 on both sides in the first direction. The folding movable shaft 53 is movably connected to the folding support base 51 and can move in the second direction, which is orthogonal to the first direction. The middle part of the scissor frame 52 is rotatably connected to the folding support base 51 and the folding movable shaft 53. More specifically, the folding movable shaft 53 can move in the front-back direction, thereby driving the scissor frame 52 to fold in the left-right direction.

[0034] In the foldable wheelchair provided by this utility model, the folding function is achieved through the folding component 5. Specifically, the scissor frame 52 can be folded by pulling the folding movable shaft 53, making folding more convenient. In addition, most existing foldable wheelchairs fold longitudinally, that is, fold in the vertical direction, and the moving wheels 2 are generally in contact with the ground. Therefore, the folded wheelchair still occupies a lot of space, and it is not convenient to place other items on top of the wheelchair, resulting in lower space utilization. Unlike the folding direction of existing foldable wheelchairs, the folding direction of the foldable wheelchair in this embodiment is folding laterally, which can reduce the space occupied on the side of the wheelchair and improve space utilization. Compared with the existing folding methods, the folding effect of this embodiment is better.

[0035] In addition, the foldable wheelchair in this embodiment is also provided with a buffer component 6. When the backrest component 3 is adjusted, the buffer component 6 can play a good buffering role and improve the user's riding comfort when the backrest component 3 is adjusted.

[0036] In some embodiments, the folding assembly 5 further includes a locking post 54 and a push plate 55. The locking post 54 is disposed on the folding support base 51, and the folding movable shaft 53 is provided with a locking hole. The push plate 55 is connected to the locking post 54 to drive the locking post 54 to be inserted into the locking hole. In normal use, by using the locking post 54 to be inserted into the locking hole, the folding movable shaft 53 can be prevented from moving and causing the scissor frame 52 to rotate, which can play a fixing role, improve the structural stability during use, and reduce the safety risks during use.

[0037] In some embodiments, the buffer assembly 6 includes a hydraulic buffer, one end of which is rotatably connected to the end of the chair frame 1, and the other end of which is rotatably connected to the backrest assembly 3. The foldable wheelchair provided in this embodiment also has the rotation adjustment function of existing wheelchairs, that is, the backrest assembly 3 can be rotated to achieve the function of lying flat, which is more functional. The use of a hydraulic buffer can play a good cushioning role, improve the support during adjustment, reduce the safety risks during use, and improve the comfort of the user when the backrest assembly 3 is adjusted.

[0038] In some embodiments, the backrest assembly 3 includes a connecting pipe 31, a first support plate 32, and a backrest cushion 33. The end of the connecting pipe 31 is rotatably connected to the chair frame 1, and the middle part of the connecting pipe 31 is rotatably connected to the hydraulic buffer. The first support plate 32 is connected to the connecting pipe 31, and the backrest cushion 33 is disposed on the first support plate 32. Specifically, the connecting pipe 31 serves to connect the first support plate 32, and the first support plate 32 can provide support for the user, resulting in better support.

[0039] In some embodiments, the backrest assembly 3 also includes a handle 34 located at the top of the connecting tube 31, which allows a person to push the entire foldable wheelchair, making it more convenient to use.

[0040] In some embodiments, the backrest assembly 3 further includes a headrest 35 connected to the connecting tube 31. When the reclining function is realized, the headrest 35 can provide support for the user's head, reduce safety risks during use, and improve the comfort of sitting.

[0041] In some embodiments, the chair frame 1 includes a first frame 11 and a second frame 12. A connecting pipe 31 is rotatably connected to the first frame 11, one end of the first frame 11 is rotatably connected to the second frame 12, the middle part of the first frame 11 is rotatably connected to one end of the hydraulic buffer, and the other end of the hydraulic buffer is rotatably connected to the second frame 12. The foldable wheelchair provided in this embodiment also has the rotation adjustment function of existing wheelchairs, that is, the backrest assembly 3 can be rotated to achieve the function of lying flat, which is more functional. By dividing the chair frame 1 into a first frame 11 and a second frame 12, the function of lying flat can be better realized, making it more convenient to use. The use of a hydraulic buffer can play a good cushioning role, improve the support during adjustment, reduce the safety risks during use, and improve the comfort of the user when the backrest assembly 3 is adjusted.

[0042] In some embodiments, the chair frame 1 further includes armrests 13, which are disposed on the first frame 11 and can provide support for the user's hands, thus improving the comfort of sitting.

[0043] In some embodiments, the seat cushion assembly 4 includes a second support plate 41 and a seat cushion 42. The second support plate 41 is connected to the first frame 11, and the seat cushion 42 is disposed on the second support plate 41, which can provide the user with the function of sitting and make the sitting more comfortable.

[0044] In some embodiments, the foldable wheelchair also includes a foot pedal assembly 7, which includes a foot pedal tube 71 and a foot pedal 72. One end of the foot pedal tube 71 is rotatably connected to the first frame 11, and the other end of the foot pedal tube 71 is rotatably connected to the foot pedal 72. By setting the foot pedal assembly 7, support function can be provided for the user's feet, and the riding comfort is better.

[0045] In some embodiments, the foot pedal assembly 7 further includes a leg pad 73 disposed on the foot pedal tube 71, which can provide support for the user's legs and improve riding comfort.

[0046] In some embodiments, the foldable wheelchair also includes casters 8, which are mounted on the frame 1 for better steering.

[0047] In some embodiments, the foldable wheelchair also includes support wheels 9, which are disposed on the frame 1. When the foldable wheelchair is rotated and adjusted, the support wheels 9 can provide better support for the foldable wheelchair and reduce safety risks during use.

[0048] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made using the content of this utility model specification, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A foldable wheelchair, characterized in that, It includes a chair frame (1), casters (2), backrest assembly (3), seat cushion assembly (4), folding assembly (5), and cushioning assembly (6); The number of chair frames (1) is two, and each of the two chair frames (1) is provided with the moving wheels (2). The two chair frames (1) are connected by the folding assembly (5). The backrest assembly (3) is detachably and rotatably connected between the two chair frames (1). The seat cushion assembly (4) is detachably connected between the two chair frames (1). One end of the cushioning assembly (6) is rotatably connected to the chair frame (1), and the other end of the cushioning assembly (6) is rotatably connected to the backrest assembly (3). The folding assembly (5) includes a folding support base (51), a scissor frame (52), and a folding movable shaft (53). The scissor frame (52) is rotatably connected to the two chair frames (1) on both sides in a first direction. The folding movable shaft (53) is movably connected to the folding support base (51) and can move along a second direction, which is orthogonal to the first direction. The middle part of the scissor frame (52) is rotatably connected to the folding support base (51) and the folding movable shaft (53).

2. The foldable wheelchair according to claim 1, characterized in that, The folding assembly (5) further includes a locking post (54) and a push plate (55). The locking post (54) is located on the folding support base (51). The folding movable shaft (53) is provided with a locking hole. The push plate (55) is connected to the locking post (54) to drive the locking post (54) to be inserted into the locking hole.

3. The foldable wheelchair according to claim 2, characterized in that, The cushioning assembly (6) includes a hydraulic buffer, one end of which is rotatably connected to the end of the chair frame (1), and the other end of which is rotatably connected to the backrest assembly (3).

4. The foldable wheelchair according to claim 3, characterized in that, The backrest assembly (3) includes a connecting pipe (31), a first support plate (32), and a backrest cushion (33). The end of the connecting pipe (31) is rotatably connected to the chair frame (1), and the middle part of the connecting pipe (31) is rotatably connected to the hydraulic buffer. The first support plate (32) is connected to the connecting pipe (31), and the backrest cushion (33) is disposed on the first support plate (32).

5. The foldable wheelchair according to claim 4, characterized in that, The chair frame (1) includes a first frame (11) and a second frame (12). The connecting pipe (31) is rotatably connected to the first frame (11). One end of the first frame (11) is rotatably connected to the second frame (12). The middle part of the first frame (11) is rotatably connected to one end of the hydraulic buffer. The other end of the hydraulic buffer is rotatably connected to the second frame (12).

6. The foldable wheelchair according to claim 5, characterized in that, The seat cushion assembly (4) includes a second support plate (41) and a seat cushion (42). The second support plate (41) is connected to the first frame (11), and the seat cushion (42) is disposed on the second support plate (41).

7. The foldable wheelchair according to claim 5, characterized in that, The foldable wheelchair also includes a foot pedal assembly (7), which includes a foot pedal tube (71) and a foot pedal (72). One end of the foot pedal tube (71) is rotatably connected to the first frame (11), and the other end of the foot pedal tube (71) is rotatably connected to the foot pedal (72).

8. The foldable wheelchair according to claim 7, characterized in that, The foot pedal assembly (7) also includes a leg pad (73) disposed on the foot pedal tube (71).

9. The foldable wheelchair according to any one of claims 1 to 8, characterized in that, The foldable wheelchair also includes casters (8) which are mounted on the chair frame (1).

10. The foldable wheelchair according to any one of claims 1 to 8, characterized in that, The foldable wheelchair also includes support wheels (9) which are mounted on the chair frame (1).

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