Folding wheelchair

Abstract

The utility model discloses a folding wheelchair, which aims to further reduce the occupied space after the wheelchair is folded, and adopts the technical scheme that the folding wheelchair comprises a wheelchair body, wheels, a seat cushion and a back cushion, the seat cushion and the back cushion are detachably arranged on the wheelchair body, and the wheels are arranged on the wheelchair body. The bicycle body comprises two bicycle frames and a foldable I-shaped frame connected with the two bicycle frames, the wheels are arranged on the bicycle frames, pedal frames are arranged on the bicycle frames and comprise connecting pipe bodies and pedal supporting pipes, connecting lug blocks are arranged on the bicycle frames, one end of each connecting pipe body is hinged to the corresponding connecting lug block, and the other end of each connecting pipe body is hinged to the corresponding pedal supporting pipe. The other end of the connecting pipe body is connected with the pedal supporting pipe, so that the connecting pipe body can rotate; the frame is provided with a supporting seat, the supporting seat is located below the connecting lug block, and the supporting seat is provided with a groove used for supporting the connecting pipe body.

Description

Technical Field

[0001] This utility model belongs to the field of wheelchair technology, and more specifically, relates to a folding wheelchair. Background Technology

[0002] To facilitate storage when not in use, many wheelchairs are designed with a foldable structure, which can reduce the space occupied by the wheelchair when stored.

[0003] Patent 202120107728.X discloses a novel wheelchair, including a body, drive wheels, a seat cushion, and a back cushion. The seat cushion and back cushion are detachably mounted on the body. Two drive wheels are respectively located on both sides of the body. The body includes two frames with identical structures and mirror symmetry. A foldable I-beam frame is provided between the two frames. An armrest device is provided on the top of the frame, a footrest device is provided at one end, and a push handle device is provided at the other end. A handbrake is provided between the footrest device and the push handle device. The I-beam frame includes a long tube, a short tube, a wide tube, and a narrow tube. The long tube is located above the short tube, and there are two long tubes and two short tubes.

[0004] Among the aforementioned wheelchairs, folding is achieved by using an I-frame to shorten the distance between the two frames, thereby reducing the space occupied when storing the wheelchair. However, the footrests cannot be folded, they can only rotate, and the footrests are quite long, so the wheelchair still takes up a lot of space even when folded. Utility Model Content

[0005] The main purpose of this invention is to provide a folding wheelchair that can further reduce the space occupied by the wheelchair after folding.

[0006] According to a first aspect of the present invention, a folding wheelchair is provided, comprising a frame, wheels, a seat cushion, and a back cushion. The seat cushion and the back cushion are detachably mounted on the frame. The frame includes two frames and a foldable I-beam connecting the two frames. The wheels are mounted on the frames. The frames are equipped with footrests, each footrest including a connecting tube and a footrest support. The frames are equipped with connecting lugs. One end of the connecting tube is hinged to the connecting lug, and the other end of the connecting tube is connected to the footrest support, allowing the connecting tube to rotate.

[0007] The frame is provided with a support seat, which is located below the connecting lug, and the support seat is provided with a groove for supporting the connecting tube.

[0008] In the aforementioned folding wheelchair, the frame includes a first tube, a second tube, and a third tube arranged at intervals from top to bottom. The first tube, the second tube, and the third tube all extend horizontally. A fourth tube is provided on the third tube. The ends of the second tube near the backrest and the third tube near the backrest are both connected to the fourth tube. A fifth tube is provided at one end of the footrest of the third tube. The ends of the second tube away from the backrest and the third tube away from the backrest are both connected to the fifth tube.

[0009] Both the connecting lug and the support base are located on the fifth tube.

[0010] In the aforementioned folding wheelchair, the I-frame includes two I-tubes, each I-tube including an upper horizontal tube and an I-connecting tube. The upper horizontal tube is fixed to the upper end of the I-connecting tube, the two I-connecting tubes are hinged together, the lower end of the I-connecting tube is hinged to the third tube body, and the upper horizontal tube slides vertically with the fourth and fifth tube bodies.

[0011] In the aforementioned folding wheelchair, the upper horizontal tube is located between the fourth tube and the fifth tube, and both ends of the upper horizontal tube are rotatably connected to sliders, with the two sliders slidingly engaging with the fourth tube and the fifth tube, respectively.

[0012] In the aforementioned folding wheelchair, a guardrail is provided between the first tube and the second tube, and the guardrail connects the fourth tube and the fifth tube.

[0013] In the aforementioned folding wheelchair, the guardrail includes a plate, with a first connecting portion at one end of the plate near the fourth tube and a second connecting portion at one end of the plate near the fifth tube. The first connecting portion is located on the side of the fourth tube away from the fifth tube and is fixedly connected to the fourth tube, while the second connecting portion is located on the side of the fifth tube away from the fourth tube and is fixedly connected to the fifth tube.

[0014] In the aforementioned folding wheelchair, the wheels include a drive wheel and a swivel wheel, with the drive wheel mounted on the fourth tube and the swivel wheel mounted on the fifth tube.

[0015] In the aforementioned folding wheelchair, an auxiliary wheel is provided at the end of the third tube that is away from the fifth tube.

[0016] In the aforementioned folding wheelchair, a handbrake device is provided on the second tube.

[0017] In the aforementioned folding wheelchair, the first tube is provided with an armrest pad, and the upper end of the fourth tube is provided with a pusher device.

[0018] One of the above-described technical solutions of this utility model has at least one of the following advantages or beneficial effects:

[0019] In this invention, the structure of the footrest is optimized so that the connecting tube can rotate. When folded, it can be rotated upwards to allow the connecting tube to come closer to the frame, further reducing the space occupied by the wheelchair. Attached Figure Description

[0020] The present invention will be further described below with reference to the accompanying drawings and embodiments;

[0021] Figure 1 This is a schematic diagram of the structure of the first embodiment of the present utility model;

[0022] Figure 2 This is the first embodiment of the present utility model. Figure 1 A magnified view of a portion of A;

[0023] Figure 3 This is a schematic diagram of the frame and I-beam frame of the first embodiment of this utility model;

[0024] Figure 4 This is the first embodiment of the present utility model. Figure 3 A magnified view of part B;

[0025] Figure 5 This is a structural schematic diagram of the guardrail according to the first embodiment of this utility model;

[0026] Figure 6 This is a schematic diagram of the folded structure of the wheelchair according to the first embodiment of this utility model.

[0027] The figure labels for each figure are as follows:

[0028] 1. Body; 11. Frame; 111. First tube; 112. Second tube; 113. Third tube; 114. Fourth tube; 115. Fifth tube; 12. I-beam; 121. Upper cross tube; 122. I-beam connecting tube; 123. Slider; 13. Footrest; 131. Connecting tube; 132. Footrest support; 14. Connecting lug; 15. Support seat; 2. Wheel; 21. Drive wheel; 22. Caster wheel; 23. Auxiliary wheel; 3. Seat; 4. Backrest; 5. Guardrail; 51. Plate; 52. First connecting part; 53. Second connecting part; 6. Handbrake device; 7. Armrest pad; 8. Push handle device. Detailed Implementation

[0029] The embodiments of this utility model are described in detail below. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0030] The following disclosure provides many different implementation methods or examples for different solutions to implement this utility model.

[0031] Reference Figures 1 to 6 As shown, a folding wheelchair includes a frame 1, wheels 2, a seat cushion 3, and a back cushion 4. The seat cushion 3 and the back cushion 4 are detachably mounted on the frame 1. The frame 1 includes two frames 11 and a foldable I-beam frame 12 connecting the two frames 11. The wheels 2 are mounted on the frames 11. The frames 11 are provided with footrests 13. The footrests 13 include a connecting tube 131 and a footrest support 132. The frames 11 are provided with connecting lugs 14. One end of the connecting tube 131 is hinged to the connecting lugs 14, and the other end of the connecting tube 131 is connected to the footrest support 132 so that the connecting tube 131 can rotate.

[0032] The frame 11 is provided with a support seat 15, which is located below the connecting lug 14. The support seat 15 is provided with a groove for supporting the connecting tube 131. When the wheelchair is in normal use, the connecting tube 131 will be stuck in the groove.

[0033] When folding, remove the seat cushion 3 and back cushion 4, use the I-beam frame 12 to bring the two frames 11 closer together, and then rotate the connecting tube 131 to rotate it upwards and bring it close to the frame 11, minimizing the size of the wheelchair and reducing the space occupied by the wheelchair.

[0034] Furthermore, the footrest 132 is rotatable, and when folding the wheelchair, the footrest 132 can be folded between the two frames 11.

[0035] In this embodiment, the frame 11 includes a first tube 111, a second tube 112, and a third tube 113 arranged from top to bottom. The first tube 111, the second tube 112, and the third tube 113 all extend horizontally. A fourth tube 114 is provided on the third tube 113. The ends of the second tube 112 and the third tube 113 near the back pad 4 are both connected to the fourth tube 114. A fifth tube 115 is provided at one end of the pedal frame 13 of the third tube 113. The ends of the second tube 112 and the third tube 113 away from the back pad 4 are both connected to the fifth tube 115. The overall frame 11 has a solid structure and good strength.

[0036] The connecting ear block 14 and the support base 15 are both located on the fifth tube body 115; the back pad 4 is generally installed on the two fourth tube bodies 114.

[0037] In this embodiment, the I-frame 12 includes two I-tubes, each including an upper horizontal tube 121 and an I-connecting tube 122. The upper horizontal tube 121 is fixed to the upper end of the I-connecting tube 122, and the two I-connecting tubes 122 are hinged together. The lower end of the I-connecting tube 122 is hinged to the third tube 113. The upper horizontal tube 121 slides vertically and vertically with the fourth tube 114 and the fifth tube 115. The I-frame 12 can be folded by rotating the I-connecting tube 122 and raising and lowering the upper horizontal tube 121, thereby allowing the two frames 11 to move closer to or further away from each other. When the wheelchair is not folded, the seat cushion 3 is arranged on the two upper horizontal tubes 121.

[0038] Specifically, the upper horizontal tube 121 is located between the fourth tube 114 and the fifth tube 115. Both ends of the upper horizontal tube 121 are rotatably connected to sliders 123, and the two sliders 123 are in sliding engagement with the fourth tube 114 and the fifth tube 115 respectively.

[0039] When the I-shaped connecting tube 122 is rotated, the upper horizontal tube 121 will also rotate slightly in addition to rising and falling. Since the slider 123 is in sliding engagement with the fourth tube 114 and the fifth tube 115, the slider 123 will not rotate. The slider 123 is rotatably connected to the upper horizontal tube 121, so the rotation of the upper horizontal tube 121 will not interfere with the up and down sliding of the slider 123.

[0040] In this embodiment, a guardrail 5 is provided between the first tube 111 and the second tube 112. The guardrail 5 connects the fourth tube 114 and the fifth tube 115. When the wheelchair is in use, the seat cushion 3 is lower than the guardrail 5, so the guardrail 5 can play a protective role. The guardrail 5 can also be supported between the fourth tube 114 and the fifth tube 115 to strengthen the frame 11.

[0041] Specifically, the guardrail 5 includes a plate 51. The end of the plate 51 near the fourth tube 114 is provided with a first connecting part 52, and the end of the plate 51 near the fifth tube 115 is provided with a second connecting part 53. The first connecting part 52 is located on the side of the fourth tube 114 away from the fifth tube 115 and is fixedly connected to the fourth tube 114. The second connecting part 53 is located on the side of the fifth tube 115 away from the fourth tube 114 and is fixedly connected to the fifth tube 115. Since both the first connecting part 52 and the second connecting part 53 are located on the outer side, the guardrail 5 will not affect the up and down sliding of the slider 123.

[0042] In this embodiment, the wheel 2 includes a drive wheel 21 and a swivel wheel 22. The drive wheel 21 is mounted on the fourth tube 114, and the swivel wheel 22 is mounted on the fifth tube 115. An auxiliary wheel 23 is provided at the end of the third tube 113 away from the fifth tube 115. The drive wheel 21 has the largest diameter, the swivel wheel 22 is for easy reversing, and the auxiliary wheel 23 is to improve the stability of the wheelchair when moving.

[0043] In this embodiment, a handbrake device 6 is provided on the second tube 112. When the passenger uses the wheelchair alone, the handbrake device 6 can help the passenger stop the wheelchair.

[0044] In this embodiment, a handrail pad 7 is provided on the first tube 111;

[0045] The upper end of the fourth tube 114 is provided with a pusher device 8, which includes a pusher tube connected to the upper end of the fourth tube 114. By grasping the pusher tube, the wheelchair can be moved.

[0046] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A folding wheelchair, comprising a frame, wheels, a seat cushion, and a backrest, wherein the seat cushion and the backrest are detachably mounted on the frame, the frame includes two frames and a foldable I-beam connecting the two frames, the wheels are mounted on the frames, and footrests are provided on the frames, characterized in that, The pedal frame includes a connecting tube and a footrest. The frame is provided with a connecting lug. One end of the connecting tube is hinged to the connecting lug, and the other end of the connecting tube is connected to the footrest so that the connecting tube can rotate. The frame is provided with a support seat, which is located below the connecting lug, and the support seat is provided with a groove for supporting the connecting tube.

2. The folding wheelchair according to claim 1, characterized in that, The frame includes a first tube, a second tube, and a third tube arranged at intervals from top to bottom. The first tube, the second tube, and the third tube all extend horizontally. A fourth tube is provided on the third tube. The ends of the second tube near the back pad and the third tube near the back pad are both connected to the fourth tube. A fifth tube is provided at one end of the third tube's footrest. The ends of the second tube away from the back pad and the third tube away from the back pad are both connected to the fifth tube. Both the connecting lug and the support base are located on the fifth tube.

3. The folding wheelchair according to claim 2, characterized in that, The I-beam frame includes two I-beam tubes, each I-beam tube including an upper horizontal tube and an I-beam connecting tube. The upper horizontal tube is fixed to the upper end of the I-beam connecting tube. The two I-beam connecting tubes are hinged together. The lower end of the I-beam connecting tube is hinged to the third tube body. The upper horizontal tube is slidably engaged with the fourth tube body and the fifth tube body.

4. The folding wheelchair according to claim 3, characterized in that, The upper horizontal tube is located between the fourth tube and the fifth tube. Both ends of the upper horizontal tube are rotatably connected to sliders, and the two sliders are respectively in sliding engagement with the fourth tube and the fifth tube.

5. The folding wheelchair according to claim 3, characterized in that, A guardrail is provided between the first pipe and the second pipe, and the guardrail connects the fourth pipe and the fifth pipe.

6. The folding wheelchair according to claim 5, characterized in that, The guardrail includes a plate, with a first connecting part at one end of the plate near the fourth pipe and a second connecting part at one end of the plate near the fifth pipe. The first connecting part is located on the side of the fourth pipe away from the fifth pipe and is fixedly connected to the fourth pipe, while the second connecting part is located on the side of the fifth pipe away from the fourth pipe and is fixedly connected to the fifth pipe.

7. The folding wheelchair according to claim 2, characterized in that, The wheel includes a drive wheel and a swivel wheel. The drive wheel is mounted on the fourth tube, and the swivel wheel is mounted on the fifth tube.

8. The folding wheelchair according to claim 7, characterized in that, An auxiliary wheel is provided at the end of the third tube that is away from the fifth tube.

9. The folding wheelchair according to claim 2, characterized in that, The second tube is equipped with a handbrake device.

10. The folding wheelchair according to claim 2, characterized in that, The first tube is provided with a handrail pad, and the upper end of the fourth tube is provided with a pusher device.

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