Quick-release wheelchair connecting piece

Abstract

The utility model relates to the technical field of wheelchair accessories, in particular to a quick-release wheelchair connecting piece. In order to solve the problems that a foldable wheelchair is quite inconvenient to connect with an electric vehicle head, a plurality of fasteners need to be adopted to connect with a connecting rod, the connecting operation is tedious, and the disassembly is also troublesome, the following technical scheme is provided: the quick-disassembly wheelchair connecting piece is used for a foldable wheelchair, and the quick-disassembly wheelchair connecting piece can be used for the electric vehicle. The front connecting piece and the rear connecting piece B are used for connecting an electric vehicle head and a wheelchair; the front connecting piece is installed on an electric vehicle head, the rear connecting piece B is fixedly connected with steel pipes on the two sides of a wheelchair, the rear connecting piece B and the front connecting piece are arranged in a mutually perpendicular mode, and the middle portion of the front connecting piece is connected with the middle portion of the rear connecting piece B in a clamped mode. After the electric vehicle head is connected with the wheelchair, the electric vehicle head and the wheelchair are convenient to disassemble and assemble, the convenience of the wheelchair in use is improved, and meanwhile, the stability of the folding wheelchair in use is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of wheelchair accessories, in particular to a quick-detachable wheelchair connector. Background Art

[0002] In order to better meet the needs of wheelchair users, people have added an electric head for traction on the basis of the wheelchair, so that the passengers can control the steering by the handle of the electric head. At the same time, in order to reduce the space occupied by the wheelchair, a foldable wheelchair has been derived, which walks by turning the hand push rings on both sides after unfolding. During the use of the folding wheelchair, it is often necessary to connect the folding wheelchair to the electric head through a connector or disassemble it in a connected state. However, due to the folding structure of the foldable wheelchair, it is quite inconvenient to connect the foldable wheelchair to the electric head. It is necessary to use multiple fasteners and connecting rods for connection. The connection operation is cumbersome and the disassembly is also troublesome. In view of this, the utility model proposes a quick-release wheelchair connector. Utility Model Content

[0003] The purpose of the utility model is to propose a quick-release wheelchair connector to address the problem in the background technology that it is quite inconvenient to connect a foldable wheelchair to an electric vehicle head, multiple fasteners and connecting rods are needed for connection, the connection operation is cumbersome, and the disassembly is also troublesome.

[0004] The technical solution of the utility model: a quick-release wheelchair connector for a foldable wheelchair, comprising a front connector and a rear connector B for connecting the electric front end and the wheelchair; the front connector is installed on the electric front end, the rear connector B is fixedly connected to the steel pipes on both sides of the wheelchair, the rear connector B and the front connector are arranged perpendicular to each other, and the middle parts of the front connector and the rear connector B are clamped; the front connector comprises a connecting block, a first fixing member, a second fixing member, a hand wrench, an adjusting pipe, a connecting body, a first guide block and a second guide block, the connecting block is fixedly connected to the electric front end, the first fixing member is sleeved and installed on the outside of the connecting block, the second fixing member is rotatably connected to the side of the first fixing member away from the electric front end, the hand wrench is arranged on one side of the connection position of the first fixing member and the second fixing member, the adjusting pipe is slidably connected to the second fixing member, and the connecting body is installed at the adjusting pipe away from the first At one end of the two fixing parts, the first guide block is installed on the top of the connecting body, and the second guide block is installed on the top of the adjusting tube. The first guide block and the second guide block are both inclined. A fixed shaft is provided in the connecting body, and a driving plate is rotatably connected to the fixed shaft. The end of the driving plate away from the fixed shaft is fixedly connected to the driving line. A connecting rod is also rotatably connected to the driving plate, and a hook plate is rotatably connected to the end of the connecting rod away from the driving plate. The hook plate is rotatably connected in the connecting body, a slot is provided on the hook plate, and a tension spring is also connected between the hook plate and the connecting body. The rear connecting member B includes an adjusting rod, an adjusting arm, a support frame, and a clamping hoop assembly. The two groups of adjusting arms are slidably connected to the adjusting rod, and the two groups of support frames are respectively arranged at the ends away from the two groups of adjusting arms. Two groups of clamping hoop assemblies are installed on the sides of the two groups of support frames away from each other, and the clamping hoop assembly is sleeved and installed on the wheelchair.

[0005] Optionally, the rear connecting member B also includes a fixed plate, an adjusting plate, a first locking shaft, and a second locking shaft. The two groups of fixed plates are fixedly installed on the outer ring of the adjusting rod. The two groups of adjusting plates are respectively fixedly connected on the opposite sides of the two groups of fixed plates. The first locking shaft and the second locking shaft are fixedly connected between the two groups of adjusting plates. The first locking shaft is arranged on the side of the adjusting rod close to the electric vehicle head. The first locking shaft is installed between the first guide block and the second guide block, and the second locking shaft is installed in the slot.

[0006] Optionally, four groups of adjustment grooves are provided on the first fixing member, and the four groups of adjustment grooves are symmetrically arranged on both sides of the connecting block. First locking bolts are penetrated through two opposite groups of adjustment grooves, and the first locking bolts are passed through the connecting block. One end of the first locking bolt is threadedly connected to a first locking nut, and the first locking nut is slidably connected to the adjustment groove.

[0007] Optionally, the bottom of the second fixing piece is open, and two groups of third locking bolts are arranged at the bottom of the second fixing piece, the third locking bolts pass through one side of the second fixing piece and are threadedly connected to the other side of the second fixing piece, the second locking bolt is installed in the hand wrench, the second locking bolt passes through the connection position between the first fixing piece and the second fixing piece, and a second locking nut is installed on the side of the second fixing piece away from the first fixing piece, and the second locking nut is threadedly connected to the second locking bolt.

[0008] Optionally, openings are provided on the sides of the opposite ends of the two groups of adjusting arms, and a fourth locking bolt is installed at the opening position, one end of the fourth locking bolt passes through one side of the adjusting arm and is threadedly connected to the other side of the adjusting arm, and multiple groups of sixth locking bolts are provided on the side of the fixing plate away from the adjusting plate, one end of the sixth locking bolt passes through the fixing plate and is threadedly connected to the adjusting plate, and the sixth locking bolt is slidably connected to the fixing plate.

[0009] Optionally, a locking knob is provided on one side of the support frame, and a positioning rod is fixedly connected to the side of the locking knob close to the support frame. The positioning rod passes through one side of the support frame and is slidably connected to the adjustment arm, and a threaded section is fixedly connected to the end of the positioning rod away from the locking knob, and the threaded section is threadedly connected to the other side of the support frame.

[0010] Optionally, the clamp assembly includes a fixed block fixedly connected to the support frame, a moving block is provided on the side of the fixed block away from the support frame, a fifth locking bolt is slidably connected in the moving block, and the fifth locking bolt passes through one end of the moving block and is threadedly connected to the fixed block.

[0011] Compared with the prior art, the utility model has the following beneficial technical effects:

[0012] The utility model can clamp the first locking shaft between the first guide block and the second guide block through the setting of the connecting body, clamp the second locking shaft in the clamping groove position, so that the front connecting member is connected to the rear connecting member B, thereby realizing the rapid connection and disassembly of the electric vehicle head and the wheelchair, which is convenient for carrying and quick assembly and use;

[0013] The rear connecting member B is further provided to support the wheelchair, thereby preventing the wheelchair from folding during use, thereby ensuring the structural stability of the wheelchair during use. At the same time, the locking knob can be turned to separate the adjustment arm from the support frame, thereby facilitating the folding of the wheelchair after the adjustment rod and the adjustment arm are removed, thereby further improving the convenience of carrying.

[0014] In summary, after the electric vehicle head and the wheelchair are connected, the utility model facilitates their disassembly and assembly, improves the convenience of the wheelchair when in use, and at the same time ensures the stability of the foldable wheelchair when in use. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the wheelchair;

[0016] Figure 2 yes Figure 1 A front view of

[0017] Figure 3 is a schematic diagram of the connection between the rear connecting member B and the wheelchair body;

[0018] Figure 4 is a schematic diagram of the structure of the front connecting member;

[0019] Figure 5 yes Figure 4 A front view of

[0020] Figure 6 is a schematic diagram of the structure of the rear connecting member B;

[0021] Figure 7 It is a structural schematic diagram of the support frame;

[0022] Figure 8 It is the assembly drawing of the front connecting part and the rear connecting part B.

[0023] Reference numerals:

[0024] 1. front connecting piece; 11. connecting block; 12. first fixing piece; 13. second fixing piece; 14. hand wrench; 15. adjusting tube; 16. connecting body; 17. first guide block; 18. second guide block;

[0025] 121, adjusting slot; 122, first locking bolt; 123, first locking nut; 131, third locking bolt; 141, second locking bolt; 142, second locking nut; 161, fixed shaft; 162, driving plate; 163, driving line; 164, connecting rod; 165, hook plate; 166, slot; 167, tension spring;

[0026] 2. Rear connecting piece B; 21. Adjusting rod; 22. Adjusting arm; 23. Support frame; 24. Hoop assembly; 25. Fixing plate; 26. Adjusting plate; 27. First locking shaft; 28. Second locking shaft;

[0027] 221, fourth locking bolt; 231, locking knob; 232, positioning rod; 233, threaded section; 241, fixed block; 242, moving block; 243, fifth locking bolt; 256, sixth locking bolt. DETAILED DESCRIPTION

[0028] The technical solution of the present utility model will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present utility model, rather than all of the embodiments.

[0029] The components of the embodiments of the present invention generally described and shown in the drawings herein can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the present invention.

[0030] Based on the embodiments of the present utility model, all other embodiments obtained by ordinary technicians in the field without making any creative work shall fall within the scope of protection of the present utility model.

[0031] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying 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. In addition, the terms "first", "second", "third", "fourth", "fifth", and "sixth" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0032] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0033] Example

[0034] like Figure 1-3 As shown, the utility model proposes a quick-release wheelchair connector, which is used for a foldable wheelchair, connecting the front of the vehicle and the wheelchair to form a three-wheel or four-wheel wheelchair structure. Specifically, the connector includes a front connector 1 and a rear connector B2 for connecting the electric front of the vehicle and the wheelchair; the front connector 1 is installed on the electric front, the rear connector B2 is fixedly connected to the steel pipes on both sides of the wheelchair, the rear connector B2 and the front connector 1 are arranged perpendicular to each other, and the middle part of the front connector 1 and the rear connector B2 are clamped.

[0035] For details, please refer to Figure 4and Figure 5 The front connecting member 1 in the above-mentioned connecting members includes a connecting block 11, a first fixing member 12, a second fixing member 13, a hand wrench 14, an adjusting tube 15, and a connecting body 16. The connecting block 11 is fixedly connected to the electric vehicle head, and the connecting block 11 is fixedly connected to the electric vehicle head by screws. The first fixing member 12 is sleeved and installed on the outer side of the connecting block 11. Four groups of adjusting grooves 121 are opened on the first fixing member 12. The four groups of adjusting grooves 121 are symmetrically arranged on both sides of the connecting block 11. First locking bolts 122 are penetrated through the two opposite groups of adjusting grooves 121. The first locking bolt 122 is penetrated in the connecting block 11. One end of the first locking bolt 122 is threadedly connected with a first locking nut 123. The first locking nut 123 is slidably connected in the adjusting groove 121, so that the connecting block 11 can slide under the limiting action of the first locking bolt 122, so as to adjust the relative position of the connecting block 11 and the first fixing member 12, and tighten the first locking bolt 122 after the adjustment is completed, so that the first locking bolt 122 cooperates with the first locking nut 123 to drive the first fixing member 12 to clamp the connecting block 11 so that the position between them is fixed. The second fixing member 13 is rotatably connected to the side of the first fixing member 12 away from the electric vehicle head, and the hand wrench 14 is arranged on one side of the connection position between the first fixing member 12 and the second fixing member 13. The hand wrench 14 is installed with a second locking bolt 141, and the hand wrench 14 drives the second locking bolt 141 to rotate synchronously when rotating. The second locking bolt 141 passes through the connection position between the first fixing member 12 and the second fixing member 13, and a second locking nut 142 is installed on the side of the second fixing member 13 away from the first fixing member 12. The second locking nut 142 is threadedly connected to the second locking bolt 141. After the second locking bolt 141 is tightened, the first fixing member 12 and the second fixing member 13 are pressed against each other, thereby fixing the angle between the first fixing member 12 and the second fixing member 13. The adjusting tube 15 is slidably connected to the second fixing member 13. The bottom of the second fixing member 13 is open, and two sets of third locking bolts 131 are arranged at the bottom of the second fixing member 13. The third locking bolts 131 penetrate one side of the second fixing member 13 and are threadedly connected to the other side of the second fixing member 13. After the adjusting tube 15 is slidably adjusted, the third locking bolts 131 are tightened, so that the second fixing member 13 is squeezed and fixed on the adjusting tube 15, so that the relative position of the adjusting tube 15 and the second fixing member 13 is fixed. The connecting body 16 is installed at the end of the adjusting tube 15 away from the second fixing member 13. The front connecting member 1 also includes a first guide block 17 and a second guide block 18. The first guide block 17 is installed at the top of the connecting body 16, and the second guide block 18 is installed at the top of the adjusting tube 15. The first guide block 17 and the second guide block 18 are both inclined. The positions of the first guide block 17 and the second guide block 18 are fixed, and are used to clamp the first lock shaft 27.

[0036] Furthermore, a fixed shaft 161 is provided in the connecting body 16, and a driving plate 162 is rotatably connected to the fixed shaft 161, and the driving plate 162 rotates around the fixed shaft 161. A driving line 163 is fixedly connected to one end of the driving plate 162 away from the fixed shaft 161, and one end of the driving line 163 is connected to the handle on the electric vehicle head, and is used to drive the driving plate 162 to rotate when the driving line 163 is pulled. A connecting rod 164 is also rotatably connected to the driving plate 162, and a hook plate 165 is rotatably connected to one end of the connecting rod 164 away from the driving plate 162. The hook plate 165 is rotatably connected to the connecting body 16, and the driving plate 162 drives the hook plate 165 to rotate synchronously when rotating. A card slot 166 is provided on the hook plate 165, and the second lock shaft 28 is clamped between the card slot 166 and the connecting body 16. A tension spring 167 is further connected between the hook piece 165 and the connecting body 16 for releasing elastic force to reset the hook piece 165 , thereby clamping the second lock shaft 28 between the clamping groove 166 and the connecting body 16 .

[0037] Furthermore, Figure 6-8As shown, the rear connecting member B2 in the above-mentioned connecting member is fixedly connected to the wheelchair, and the rear connecting member B2 is clamped with the connecting body 16. The rear connecting member B2 includes an adjusting rod 21, an adjusting arm 22, a support frame 23, and a hoop assembly 24. Both groups of adjusting arms 22 are slidably connected to the adjusting rod 21. The surface of the adjusting rod 21 is provided with teeth for greatly adjusting the installation angle of the adjusting arms 22. The side surfaces of the two groups of adjusting arms 22 at opposite ends are provided with openings, and a fourth locking bolt 221 is installed at the opening position. One end of the fourth locking bolt 221 passes through one side of the adjusting arm 22 and is threadedly connected to the other side of the adjusting arm 22. It is used to adjust the distance between the two groups of adjusting arms 22 and fix them on the adjusting rod 21, which is suitable for connecting wheelchairs of different widths. The two groups of support frames 23 are respectively arranged at the ends away from the two groups of adjustment arms 22. A locking knob 231 is arranged on one side of the support frame 23. A positioning rod 232 is fixedly connected to the side of the locking knob 231 close to the support frame 23. The locking knob 231 drives the positioning rod 232 to rotate synchronously. The positioning rod 232 passes through one side of the support frame 23 and is slidably connected to the adjustment arm 22, so as to connect the support frame 23 with the adjustment arm 22. A threaded section 233 is fixedly connected to the end of the positioning rod 232 away from the locking knob 231. The threaded section 233 is threadedly connected to the other side of the support frame 23, so that the positioning rod 232 is fixed in the support frame 23. Two groups of clamping hoop assemblies 24 are installed on the side of the two groups of support frames 23 away from each other. The clamping hoop assembly 24 is sleeved and installed on the wheelchair. The clamping hoop assembly 24 includes a fixed block 241 fixedly connected to the support frame 23. A moving block 242 is provided on the side of the fixed block 241 away from the support frame 23. A fifth locking bolt 243 is slidably connected in the moving block 242. One end of the fifth locking bolt 243 passes through the moving block 242 and is threadedly connected to the fixed block 241, so that after the fifth locking bolt 243 is rotated, the moving block 242 is driven close to the fixed block 241 to clamp and fix the wheelchair. The rear connecting member B2 also includes a fixing plate 25, an adjusting plate 26, a first locking shaft 27, and a second locking shaft 28. The two sets of fixing plates 25 are fixedly mounted on the outer ring of the adjusting rod 21. The two sets of adjusting plates 26 are respectively fixedly connected to the opposite sides of the two sets of fixing plates 25. A plurality of sets of sixth locking bolts 256 are arranged on the side of the fixing plate 25 away from the adjusting plate 26. One end of the sixth locking bolt 256 penetrates the fixing plate 25 and is threadedly connected to the adjusting plate 26, and is used to fix the relative position of the fixing plate 25 and the adjusting plate 26 after tightening the sixth locking bolt 256. The sixth locking bolt 256 is slidably connected to the fixing plate 25, so that the adjusting plate 26 can be adjusted in a small angle, thereby adjusting the height of the front wheelchair lifting. The first lock shaft 27 and the second lock shaft 28 are both fixedly connected between the two groups of adjustment plates 26. The first lock shaft 27 is arranged on the side of the adjustment rod 21 close to the electric car head. The first lock shaft 27 is installed between the first guide block 17 and the second guide block 18. The second lock shaft 28 is installed in the slot 166 to facilitate the quick connection between the front connecting member 1 and the rear connecting member B2.

[0038] In this embodiment, the connecting block 11 is first fixed to the electric vehicle head by screws, the first fixing member 12 is installed on the connecting block 11, and the first locking bolt 122 is tightened after adjusting the appropriate position to fix the position of the first fixing member 12. Then the second fixing member 13 is rotated, and after adjusting the appropriate angle, the hand wrench 14 is rotated to drive the second locking bolt 141 to rotate, thereby tightening the second locking bolt 141, so that the angle between the second fixing member 13 and the first fixing member 12 is fixed. After sliding the adjustment tube 15 and adjusting the appropriate length of the adjustment tube 15, the third locking bolt 131 is tightened, so that the third locking bolt 131 is stuck on the adjustment tube 15, and the position of the adjustment tube 15 is fixed. Then, according to the width of the wheelchair, the position of the sliding adjustment arm 22 on the adjustment rod 21 is tightened, and the fifth locking bolt 243 is tightened to drive the moving block 242 close to the fixed block 241 to clamp the wheelchair. Finally, the fourth locking bolt 221 is tightened to fix the positions of the two groups of adjustment arms 22. At this time, after loosening the sixth locking bolt 256, adjust the deflection angle of the adjustment plate 26, and then tighten the sixth locking bolt 256 to fix the position of the adjustment plate 26. At this time, the handle on the electric head drives the driving wire 163 to move, and the driving wire 163 pulls the driving plate 162 to deflect. At this time, the driving plate 162 drives the hook plate 165 to deflect through the connecting rod 164, and at the same time stretches the tension spring 167. At this time, the second lock shaft 28 can be stuck in the position of the slot 166, and the first lock shaft 27 is stuck between the first guide block 17 and the second guide block 18. At this time, the connection between the front connecting member 1 and the rear connecting member B2 is completed. After loosening the handle, the driving wire 163 is relaxed, and at the same time, the tension spring 167 releases the elastic force to drive the hook plate 165 to reset. The hook plate 165 is in a locked state at this time, locking the second lock shaft 28. At the same time, due to the inclined setting of the first guide block 17 and the second guide block 18, the first lock shaft 27 cannot be moved out at the same time, so that the connection between the front connecting member 1 and the rear connecting member B2 is reliable.

[0039] When the wheelchair needs to be folded and carried, the driving line 163 is pulled to drive the hook piece 165 to rotate and open, and the first locking shaft 27 and the second locking shaft 28 are removed from the connecting body 16. Then the locking knob 231 is turned to make the threaded section 233 rotate synchronously and move away from one side of the support frame 23. At this time, the positioning rod 232 can be pulled out from the adjustment arm 22, so that the adjustment arm 22 can be disassembled and separated from the support frame 23, which is convenient for folding and carrying the wheelchair.

Claims

1. A quick-release wheelchair connector for a foldable wheelchair, characterized in that: include: A front connecting member (1) and a rear connecting member B (2) for connecting the electric vehicle head and the wheelchair; The front connecting member (1) is mounted on the electric vehicle head, the rear connecting member B (2) is fixedly connected to the steel pipes on both sides of the wheelchair, the rear connecting member B (2) and the front connecting member (1) are arranged perpendicular to each other, and the middle parts of the front connecting member (1) and the rear connecting member B (2) are clamped; The front connecting member (1) comprises a connecting block (11), a first fixing member (12), a second fixing member (13), a hand wrench (14), an adjusting tube (15), a connecting body (16), a first guide block (17) and a second guide block (18); the connecting block (11) is fixedly connected to the electric vehicle head; the first fixing member (12) is sleeved and installed on the outside of the connecting block (11); the second fixing member (13) is rotatably connected to the first fixing member (12) away from the electric vehicle head; the hand wrench (14) is arranged on the first fixing member (12) and the second guide block (18) is sleeved and installed on the outside of the connecting block (11); the second fixing member (13) is rotatably connected to the first fixing member (12) and the side away from the electric vehicle head; the hand wrench (14) is arranged on the first fixing member (12) and the side away from the electric vehicle head; the hand wrench (14) is arranged on the first fixing member (12) and the second guide block (18) is sleeved and installed on the outside of the connecting block (11); the second fixing member (13) is rotatably connected to the first fixing member (12) and the side away from the electric vehicle head; the hand wrench (14) is arranged on the first fixing member (12) and the second guide block (18) is sleeved and installed on the outside of the connecting block (11); the second fixing member (13) is sleeved and installed on the first fixing member (12) and the side away from the electric vehicle head; the hand wrench (14) is sleeved and installed ... The fixing member (12) is connected to the second fixing member (13) at one side of the connection position, the adjusting tube (15) is slidably connected to the second fixing member (13), the connecting body (16) is installed at the end of the adjusting tube (15) away from the second fixing member (13), the first guide block (17) is installed at the top of the connecting body (16), the second guide block (18) is installed at the top of the adjusting tube (15), the first guide block (17) and the second guide block (18) are both inclined, and a fixed shaft (16) is provided in the connecting body (16). 1), a driving plate (162) is rotatably connected to the fixed shaft (161), and one end of the driving plate (162) away from the fixed shaft (161) is fixedly connected to a driving wire (163), and a connecting rod (164) is also rotatably connected to the driving plate (162), and one end of the connecting rod (164) away from the driving plate (162) is rotatably connected to a hook plate (165), and the hook plate (165) is rotatably connected to the connecting body (16), and a card slot (166) is provided on the hook plate (165). A tension spring (167) is also connected between the rear connecting member B (2) and the connecting body (16), and the rear connecting member B (2) comprises an adjusting rod (21), an adjusting arm (22), a supporting frame (23), and a clamping assembly (24). The two groups of adjusting arms (22) are slidably connected to the adjusting rod (21), and the two groups of supporting frames (23) are respectively arranged at the ends away from the two groups of adjusting arms (22). Two groups of clamping assemblies (24) are installed on the sides away from each other of the two groups of supporting frames (23), and the clamping assembly (24) is sleeved and installed on the wheelchair.

2. A quick-release wheelchair connector according to claim 1, characterized in that: The rear connecting member B (2) further comprises a fixing plate (25), an adjusting plate (26), a first locking shaft (27), and a second locking shaft (28); the two groups of fixing plates (25) are fixedly mounted on the outer ring of the adjusting rod (21); the two groups of adjusting plates (26) are fixedly connected to opposite sides of the two groups of fixing plates (25); the first locking shaft (27) and the second locking shaft (28) are fixedly connected between the two groups of adjusting plates (26); the first locking shaft (27) is arranged on the side of the adjusting rod (21) close to the electric vehicle head; the first locking shaft (27) is mounted between the first guide block (17) and the second guide block (18); and the second locking shaft (28) is mounted in the card slot (166).

3. The quick-release wheelchair connector according to claim 1, characterized in that: The first fixing member (12) is provided with four groups of adjustment grooves (121), the four groups of adjustment grooves (121) are symmetrically arranged on both sides of the connecting block (11), and first locking bolts (122) are penetrated through two opposite groups of adjustment grooves (121), the first locking bolts (122) are penetrated in the connecting block (11), one end of the first locking bolt (122) is threadedly connected to a first locking nut (123), and the first locking nut (123) is slidably connected in the adjustment groove (121).

4. The quick-release wheelchair connector according to claim 1, characterized in that: The bottom of the second fixing member (13) is open, and two groups of third locking bolts (131) are arranged at the bottom of the second fixing member (13), the third locking bolts (131) pass through one side of the second fixing member (13) and are threadedly connected to the other side of the second fixing member (13), the hand wrench (14) is installed with a second locking bolt (141), the second locking bolt (141) passes through the connection position between the first fixing member (12) and the second fixing member (13), and a second locking nut (142) is installed on the side of the second fixing member (13) away from the first fixing member (12), and the second locking nut (142) is threadedly connected to the second locking bolt (141).

5. The quick-release wheelchair connector according to claim 2, characterized in that: The side surfaces of the two groups of adjusting arms (22) at opposite ends are provided with openings, and a fourth locking bolt (221) is installed at the opening position, one end of the fourth locking bolt (221) passes through one side of the adjusting arm (22) and is threadedly connected to the other side of the adjusting arm (22), and a plurality of groups of sixth locking bolts (256) are provided on a side of the fixing plate (25) away from the adjusting plate (26), one end of the sixth locking bolt (256) passes through the fixing plate (25) and is threadedly connected to the adjusting plate (26), and the sixth locking bolt (256) is slidably connected to the fixing plate (25).

6. The quick-release wheelchair connector according to claim 1, characterized in that: A locking knob (231) is provided on one side of the support frame (23); a positioning rod (232) is fixedly connected to a side of the locking knob (231) close to the support frame (23); the positioning rod (232) passes through one side of the support frame (23) and is slidably connected to the adjustment arm (22); a threaded section (233) is fixedly connected to one end of the positioning rod (232) away from the locking knob (231); and the threaded section (233) is threadedly connected to the other side of the support frame (23).

7. The quick-release wheelchair connector according to claim 1, characterized in that: The clamp assembly (24) comprises a fixed block (241) fixedly connected to the support frame (23); a moving block (242) is provided on a side of the fixed block (241) away from the support frame (23); a fifth locking bolt (243) is slidably connected to the moving block (242); and one end of the fifth locking bolt (243) passes through the moving block (242) and is threadedly connected to the fixed block (241).

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