Pedal assembly and wheelchair

Abstract

The utility model provides a pedal assembly and wheelchair, wherein the pedal assembly comprises a support tube, a first support seat, a limit post, a first positioning plate, a switch plate, an elastic piece and a pedal support, the first support seat is arranged on the support tube, the limit post is arranged on the first support seat, and the first positioning plate is arranged on the switch plate. The first positioning plate is rotationally connected to the first supporting seat and can be clamped to the supporting pipe and the limiting column, the switch plate is rotationally connected to the first positioning plate, the elastic piece is connected to the switch plate and used for driving the switch plate to be clamped to the limiting column, and the pedal support is connected to the first positioning plate. The wheelchair comprises a supporting frame and the pedal assembly, and the supporting pipe is connected to the supporting frame. The pedal assembly and the wheelchair are more convenient to use, more stable after being installed and better in safety.

Description

Technical Field

[0001] The utility model relates to the technical field of wheelchairs, in particular to a pedal assembly and a wheelchair. Background Art

[0002] Wheelchairs are essential mobility tools for the injured, sick, and disabled, especially for home rehabilitation, transportation, medical treatment, and outdoor activities. The footrests of traditional wheelchairs are integrally formed with the wheelchair frame, preventing them from folding. This means the wheelchair still occupies a significant amount of space even when folded. In everyday wheelchair use, this inability to fold the footrests also results in long transfer distances when the occupant needs to relocate, making transfers more difficult. Furthermore, because the footrests are always located in front of the wheelchair frame, the footrests on the footrests can easily interfere with the occupant's transfer, posing a safety hazard.

[0003] In order to solve the above problems, wheelchairs with foldable footrests are now available on the market. However, the existing wheelchairs with foldable footrests are inconvenient to use, are not stable after installation, and are prone to shaking, posing certain safety hazards. Utility Model Content

[0004] The purpose of the utility model is to provide a footrest assembly and a wheelchair, aiming to solve the problems that the existing wheelchair footrest assembly is inconvenient to use and has certain safety hazards.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] In a first aspect, a pedal assembly is provided, comprising:

[0007] Support tube;

[0008] a first support seat, the first support seat being arranged on the support tube;

[0009] A limiting column, the limiting column is arranged on the first supporting seat;

[0010] a first positioning plate, the first positioning plate being rotatably connected to the first support seat and capable of being clamped to the support tube and the limiting column;

[0011] a switch plate, the switch plate being rotatably connected to the first positioning plate;

[0012] an elastic member connected to the switch plate and configured to cause the switch plate to be clamped to the limiting column;

[0013] A footrest bracket is connected to the first positioning plate.

[0014] Optionally, the pedal assembly further includes a first supporting shaft, the first supporting shaft is disposed on the first supporting seat, and the first supporting shaft and the limiting column are respectively located on both sides of the supporting tube.

[0015] Optionally, the first positioning plate is provided with a first groove adapted to the support tube, one end of the first positioning plate is connected to the first support shaft, and the other end of the first positioning plate is provided with a second groove adapted to the limiting column.

[0016] Optionally, both the first groove and the second groove are arc-shaped grooves.

[0017] Optionally, the pedal assembly further includes a switch shaft, the switch shaft is provided on the first positioning plate, and the switch plate is rotatably connected to the switch shaft.

[0018] Optionally, the switch plate is made of an iron sheet, one end of the switch plate is provided with a toggle portion, and the other end of the switch plate is provided with a buckle portion, the buckle portion has a hook shape, and the buckle portion can be buckled to the limiting column.

[0019] Optionally, the elastic member is a torsion spring, the elastic member is sleeved on the switch shaft, one end of the elastic member is connected to the pedal bracket, and the other end of the elastic member is connected to the switch plate.

[0020] Optionally, the foot pedal assembly also includes a second support seat, a second positioning plate and a second support shaft, the second support seat is arranged on the support tube, the second support seat and the first support seat are arranged at intervals along the axial direction of the support tube, the second support shaft is arranged on the second support seat, one end of the second positioning plate is rotatably connected to the second support shaft, and the other end of the second positioning plate is connected to the foot pedal bracket.

[0021] Optionally, the pedal assembly further includes a pedal body, which is rotatably connected to the pedal bracket.

[0022] In a second aspect, a wheelchair is provided, comprising a support frame and the above-mentioned footrest assembly, wherein the support tube is connected to the support frame.

[0023] Compared with the prior art, the beneficial effects of the present invention are:

[0024] 1. In the footrest assembly provided by the present invention, the support tube is a part of the wheelchair, the footrest bracket is used to connect the footrest body, and the first support seat plays a supporting role. When the footrest assembly is used normally, the first positioning plate can be clamped on the support tube and the limit column, which can play a preliminary positioning and limiting effect on the footrest bracket. In the process of rotating the switch plate, due to the action of the elastic member, the end of the switch plate can be automatically clamped on the limit column. By setting the elastic member, the switch plate can be firmly clamped on the limit column without the action of other external forces, thereby playing a secondary limiting effect, which can better fix the position of the footrest bracket, and the installation structure is more stable and safer.

[0025] 2. In the footrest assembly provided by the present invention, when the footrest assembly needs to be folded, the user can toggle the switch plate to move the switch plate away from the limit column, and then push the entire footrest bracket to move the positioning plate away from the limit column and the surface of the support tube, so that the entire footrest bracket can be rotated to the outer side of the wheelchair. The user can then leave the wheelchair from the middle, which is very convenient to use and makes the storage and transportation of the entire wheelchair more convenient.

[0026] 3. The wheelchair provided by the present invention adopts the above-mentioned footrest assembly, which is more convenient to use and safer. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the embodiments or descriptions of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0028] Figure 1 This is a schematic structural diagram of the footrest assembly and wheelchair of the present invention;

[0029] Figure 2 for Figure 1 A magnified schematic diagram of point A in the middle;

[0030] Figure 3 This is a structural schematic diagram of the footrest assembly and wheelchair of the present invention from another angle;

[0031] Figure 4 This is a structural diagram of the first support base, the first positioning plate and the switch plate of the utility model;

[0032] Figure 5 It is a structural schematic diagram of the first support seat and the first positioning plate of the utility model.

[0033] In the figure: 1. Support tube; 2. First support seat; 3. Limit column; 4. First positioning plate; 5. Switch plate; 51. Toggle part; 52. Buckle part; 6. Elastic member; 7. Pedal bracket; 8. First support shaft; 9. Switch shaft; 10. Second support seat; 11. Second positioning plate; 12. Second support shaft; 13. Pedal body; 14. Support frame. DETAILED DESCRIPTION

[0034] The following is a clear and complete description of the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0035] In the description of the present invention, it should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0036] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be understood to indicate or imply relative importance or to implicitly indicate the quantity of the technical features indicated. Thus, a feature specified as "first" or "second" may explicitly or implicitly include one or more of the features.

[0037] The following combination Figures 1 to 5 The present invention describes a footrest assembly and a wheelchair.

[0038] like Figures 1 to 5 As shown, the utility model provides a pedal assembly, including a support tube 1, a first support seat 2, a limit column 3, a first positioning plate 4, a switch plate 5, an elastic member 6 and a pedal bracket 7. The first support seat 2 is arranged on the support tube 1, the limit column 3 is arranged on the first support seat 2, the first positioning plate 4 is rotatably connected to the first support seat 2 and can be clamped to the support tube 1 and the limit column 3, the switch plate 5 is rotatably connected to the first positioning plate 4, the elastic member 6 is connected to the switch plate 5, and is used to drive the switch plate 5 to be clamped to the limit column 3, and the pedal bracket 7 is connected to the first positioning plate 4.

[0039] For the convenience of explanation, in this embodiment, each direction is as follows Figure 1 shown.

[0040] In the footrest assembly provided in this embodiment, the support tube 1 is a part of the wheelchair, the footrest bracket 7 is used to connect the footrest body 13, and the first support seat 2 plays a supporting role. When the footrest assembly is used normally, the first positioning plate 4 can be clamped on the support tube 1 and the limit column 3, which can play a preliminary positioning and limiting effect on the footrest bracket 7. In the process of rotating the switch plate 5 to the left, due to the action of the elastic member 6, the end of the switch plate 5 can be automatically clamped on the limit column 3. By setting the elastic member 6, the switch plate 5 can be firmly clamped on the limit column 3 without the action of other external forces, thereby playing a secondary limiting effect, which can better fix the position of the footrest bracket 7, and the installation structure is more stable and safer.

[0041] Furthermore, when the footrest assembly needs to be folded, the user can toggle the switch plate 5 to the right to make the switch plate 5 leave the limit column 3, and then push the entire footrest bracket 7 to the right to make the positioning plate leave the limit column 3 and the surface of the support tube 1, so that the entire footrest bracket 7 can be rotated to the outer side of the wheelchair (the right side in the figure), and the user can leave the wheelchair from the middle, which is very convenient to use and more convenient to store and transport the entire wheelchair.

[0042] In some embodiments, the footrest assembly also includes a first support shaft 8, which is arranged on the first support seat 2, and the first support shaft 8 and the limit column 3 are respectively located on both sides of the support tube 1. Specifically, the first support shaft 8 is located on the right side of the support tube 1, and the limit column 3 is located on the left side of the support tube 1. The first support shaft 8 and the limit column 3 are both installed on the first support seat 2 by interference fit, and a limit protrusion is provided at the upper end of the limit column 3. When the first positioning plate 4 is not clamped to the limit column 3, the first positioning plate 4 can be sleeved on the first support shaft 8 from top to bottom, or can leave the first support shaft 8 from bottom to top. It can be understood that the footrest bracket 7 can be more conveniently removed from or installed on the wheelchair, and the operation is more convenient. When the first positioning plate 4 is clamped to the limit column 3, the limit protrusion on the limit column 3 can prevent the first positioning plate 4 from leaving the limit column 3 from above, thereby preventing the footrest bracket 7 from leaving the support tube 1, and the overall structure is more stable.

[0043] In some embodiments, the first positioning plate 4 is provided with a first groove adapted to the support tube 1, one end of the first positioning plate 4 is connected to the first support shaft 8, and the other end of the first positioning plate 4 is provided with a second groove adapted to the limiting column 3. The first positioning plate 4 can be clamped to the support tube 1 and the limiting column 3, and can play a preliminary positioning and limiting effect on the footrest bracket 7.

[0044] In some embodiments, the first groove and the second groove are both arc-shaped grooves, which have better adaptability. After the first positioning plate 4 is clamped to the support tube 1 and the limiting column 3, the shaking of the first positioning plate 4 and the footrest bracket 7 can be reduced, and the installation stability is better.

[0045] In some embodiments, the pedal assembly also includes a switch shaft 9, which is provided on the first positioning plate 4, and the switch plate 5 is rotatably connected to the switch shaft 9. By setting the switch shaft 9, the rotation of the switch plate 5 is smoother and more convenient to use.

[0046] In some embodiments, the switch plate 5 is made of iron sheet, one end of the switch plate 5 is provided with a toggle portion 51, and the other end of the switch plate 5 is provided with a buckling portion 52. The buckling portion 52 has a hook shape, and the buckling portion 52 can be buckled to the limit column 3. It can be understood that the switch plate 5 has a certain deformation ability, and the hook-shaped buckling portion 52 can be better buckled to the limit column 3, with better fixing effect and better installation stability.

[0047] In some embodiments, the elastic member 6 is a torsion spring, which is sleeved on the switch shaft 9. One end of the elastic member 6 is connected to the foot pedal bracket 7, and the other end of the elastic member 6 is connected to the switch plate 5. Specifically, the switch plate 5 and the positioning plate are both provided with avoidance grooves adapted to the torsion spring, which can more conveniently install the torsion spring. The lower end of the switch shaft 9 is provided with an anti-drop protrusion, which can ensure that the torsion spring does not fall off after installation, and the installation stability is better.

[0048] In some embodiments, the footrest assembly also includes a second support seat 10, a second positioning plate 11 and a second support shaft 12. The second support seat 10 is arranged on the support tube 1, and the second support seat 10 and the first support seat 2 are arranged at intervals along the axial direction of the support tube 1. The second support shaft 12 is arranged on the second support seat 10, and one end of the second positioning plate 11 is rotatably connected to the second support shaft 12, and the other end of the second positioning plate 11 is connected to the footrest bracket 7. Specifically, the second support seat 10 is located on the upper side of the first support seat 2, and the second support shaft 12 is located on the right side of the support tube 1. The second support shaft 12 is installed on the second support seat 10 by interference fit. When the first positioning plate 4 is not stuck on the limit column 3, the second positioning plate 11 can be sleeved on the second support shaft 12 from top to bottom, or can leave the second support shaft 12 from bottom to top. It can be understood that the footrest bracket 7 can be more conveniently removed from or installed on the wheelchair, and it is more convenient to operate.

[0049] In some embodiments, the pedal assembly further includes a pedal body 13 , which is rotatably connected to the pedal bracket 7 , so that the pedal body 13 can be better stored and is more convenient to use.

[0050] The present invention also provides a wheelchair, comprising a support frame 14 and the above-mentioned footrest assembly, wherein the support tube 1 in the footrest assembly is connected to the support frame 14. By adopting the above-mentioned footrest assembly, the wheelchair is more convenient to use and safer.

[0051] The above description is merely an embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the present invention specification, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A pedal assembly, characterized in that: include: Support tube (1); A first support seat (2), the first support seat (2) being arranged on the support tube (1); A limiting column (3), the limiting column (3) being arranged on the first supporting seat (2); A first positioning plate (4), the first positioning plate (4) is rotatably connected to the first support seat (2) and can be clamped to the support tube (1) and the limiting column (3); a switch plate (5), the switch plate (5) being rotatably connected to the first positioning plate (4); an elastic member (6), the elastic member (6) being connected to the switch plate (5) and being used to drive the switch plate (5) to be clamped to the limiting column (3); A footrest bracket (7), the footrest bracket (7) is connected to the first positioning plate (4).

2. The footrest assembly according to claim 1, wherein: The pedal assembly further comprises a first supporting shaft (8), the first supporting shaft (8) being arranged on the first supporting seat (2), and the first supporting shaft (8) and the limiting column (3) being respectively located on both sides of the supporting tube (1).

3. The footrest assembly according to claim 2, characterized in that: The first positioning plate (4) is provided with a first groove adapted to the support tube (1), one end of the first positioning plate (4) is connected to the first supporting shaft (8), and the other end of the first positioning plate (4) is provided with a second groove adapted to the limiting column (3).

4. The footrest assembly according to claim 3, wherein: The first groove and the second groove are both arc-shaped grooves.

5. The footrest assembly according to claim 4, characterized in that: The pedal assembly further comprises a switch shaft (9), the switch shaft (9) being arranged on the first positioning plate (4), and the switch plate (5) being rotatably connected to the switch shaft (9).

6. The footrest assembly according to claim 5, characterized in that: The switch plate (5) is made of an iron sheet. One end of the switch plate (5) is provided with a toggle portion (51). The other end of the switch plate (5) is provided with a buckle portion (52). The buckle portion (52) has a hook shape and can be buckled to the limit column (3).

7. The footrest assembly according to claim 6, wherein: The elastic member (6) is a torsion spring, and the elastic member (6) is sleeved on the switch shaft (9). One end of the elastic member (6) is connected to the pedal bracket (7), and the other end of the elastic member (6) is connected to the switch plate (5).

8. The footrest assembly according to claim 1, wherein: The pedal assembly further comprises a second support seat (10), a second positioning plate (11) and a second support shaft (12), wherein the second support seat (10) is arranged on the support tube (1), the second support seat (10) and the first support seat (2) are arranged at intervals along the axial direction of the support tube (1), the second support shaft (12) is arranged on the second support seat (10), one end of the second positioning plate (11) is rotatably connected to the second support shaft (12), and the other end of the second positioning plate (11) is connected to the pedal bracket (7).

9. The footrest assembly according to claim 1, wherein: The pedal assembly further comprises a pedal body (13), and the pedal body (13) is rotatably connected to the pedal bracket (7).

10. A wheelchair, characterized in that: It comprises a support frame (14) and a pedal assembly according to any one of claims 1 to 9, wherein the support tube (1) is connected to the support frame (14).

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