Quick rod connecting device for electric vehicle head

Abstract

The invention relates to the technical field of wheelchairs, and particularly discloses an electric vehicle head quick rod connecting device which comprises a vehicle head assembly, a wheelchair assembly and a connecting assembly, the vehicle head assembly is detachably connected to one side of the connecting assembly, and the wheelchair assembly is detachably connected to the other side of the connecting assembly; the connecting assembly comprises an eccentric wrench, an opening hoop, an adjusting hoop and a tensioning hoop, an arc pad is arranged at one end of the eccentric wrench, the other end of the arc pad is connected to the opening hoop, the other end of the opening hoop is rotationally connected to the adjusting hoop, the other end of the adjusting hoop is detachably connected to the tensioning hoop, and the tensioning hoop is detachably connected to the adjusting hoop. The eccentric wrench, the arc pad and the opening hoop are all arranged on the tensioning lock shaft in a sleeving mode. The rotating angle of the wheelchair can be adjusted, the tightness of the opening hoop can be adjusted, the adaptability is wider, and the adaptability to different types of wheelchairs is better.

Description

Technical Field

[0001] The invention relates to the technical field of wheelchairs, and in particular to a quick rod connecting device for an electric vehicle head. Background Art

[0002] There are many types of wheelchairs with various functions, including ordinary wheelchairs, high-back reclining wheelchairs, electric wheelchairs, toilet wheelchairs and standing wheelchairs. Electric wheelchairs are mainly used by people with high paraplegia or hemiplegia who can control the wheelchair with one hand, and have become a means of transportation for the disabled and the elderly. In outdoor or large event venues, when there is no one to push the wheelchair, the electric wheelchair can expand the range of activities of such people and save physical strength. Since electric wheelchairs work indoors most of the time and do not need to use the electric function, the front of the electric wheelchair is generally a detachable structure, which can facilitate the placement of the wheelchair indoors.

[0003] The current existing technology still has the following areas for improvement: the connection between the existing electric vehicle head and the wheelchair is usually connected using a fixed bracket, which cannot adjust the position between the wheelchair and the electric vehicle head, and cannot be fully adapted to different types of wheelchairs. An incompatible wheelchair installation can easily cause the wheelchair to detach during driving, leading to accidents, and the wheelchair cannot be turned at an angle. If the user is not comfortable with the wheelchair position at this angle, it may also cause danger during driving. Summary of the invention

[0004] In order to solve the above problems existing in the prior art, the present invention provides an electric vehicle head quick rod connection device, which can adjust the rotation angle of the wheelchair and the tightness of the open clamp. It has wider applicability and better adaptability to different types of wheelchairs.

[0005] The purpose of the present invention can be achieved by the following technical solutions:

[0006] An electric vehicle head quick rod connection device comprises a head assembly, a wheelchair assembly and a connection assembly, wherein the head assembly is detachably connected to one side of the connection assembly, and the wheelchair assembly is detachably connected to the other side of the connection assembly;

[0007] The connecting assembly includes an eccentric wrench, an open hoop, an adjustment hoop and a tightening hoop. An arc pad is provided at one end of the eccentric wrench, the other end of the arc pad is connected to the open hoop, the other end of the open hoop is rotatably connected to the adjustment hoop, and the other end of the adjustment hoop is detachably connected to the tightening hoop. The eccentric wrench, the arc pad and the open hoop are all sleeved on the tightening lock shaft.

[0008] Furthermore, an external thread is provided on a side of the tension lock shaft close to the open clamp, and the external thread is threadedly connected to the lower end of the open clamp. An internal thread is provided on a side of the tension lock shaft close to the eccentric wrench, and the internal thread is fixedly connected to the lower end of the eccentric wrench through a second top screw.

[0009] A U-shaped groove is formed at one end of the tensioning lock shaft close to the eccentric wrench, a flat head pin is arranged in the U-shaped groove, the flat head pin is located at the lower end of the eccentric wrench, the arc pad is an arc-shaped structure at one end close to the eccentric wrench, the arc-shaped structure cooperates with the eccentric wrench, and a first top screw is fixedly arranged on the inner side of the eccentric wrench.

[0010] Furthermore, the connecting assembly further comprises a ratchet rod, two width adjusting members, two height adjusting members and two connecting rods, one end of the ratchet rod being fixedly connected to one of the width adjusting members, and the other end of the ratchet rod being slidably connected to the other of the width adjusting members;

[0011] The outer side of each width adjustment member can be detachably connected to one of the height adjustment members, an angle adjustment member is fixedly provided on the outer side of each of the height adjustment members, each of the angle adjustment members is sleeved on one of the connecting rods, and the inside of each of the open clamps is connected to one of the connecting rods.

[0012] Furthermore, a fixing hook is slidably provided on the ratchet rod, and an adjusting handle is rotatably provided on the fixing hook.

[0013] Furthermore, the front assembly includes a front handle, a support column and a front wheel, wherein the front handle is fixedly connected to the upper end of the support column, the front wheel is rotatably connected to the lower end of the support column, and the support column is sleeved with a column outer tube;

[0014] A battery holder is fixedly arranged on the outer side of the column outer tube, a front battery is fixedly arranged on the outer side of the battery holder, a headlight is fixedly arranged on the supporting column, the headlight is located above the front wheel, and a dashboard is arranged on the front handle.

[0015] Furthermore, a connecting support is detachably provided on the inner side of the outer tube of the column, a support leg is rotatably provided on the inner side of the outer tube of the column, the connecting support is located at the upper end of the support leg, the support leg is a T-shaped structure, and a support wheel is rotatably provided on both sides of the lower end of the support leg.

[0016] Furthermore, an adjustment handle is rotatably provided on the upper end of the support leg, an upper locking shaft and a lower locking shaft are fixedly provided on the connecting support, the upper locking shaft is located above the lower locking shaft, and the fixing hook is detachably connected to the upper locking shaft and the lower locking shaft.

[0017] Furthermore, the wheelchair assembly includes a wheelchair backrest, a wheelchair seat cushion, a wheelchair support rod and two wheelchair wheels, the wheelchair backrest and the wheelchair seat cushion are fixedly connected to the wheelchair support rod, the wheelchair backrest and the wheelchair seat cushion are 90 degrees apart, a wheelchair armrest is fixedly provided on both sides of the wheelchair seat cushion, and one of the wheelchair wheels is rotatably connected on both sides of the wheelchair support rod.

[0018] Furthermore, a foot pedal is fixedly provided at the lower end of the wheelchair support rod, and a front auxiliary wheel is rotatably provided on both sides of the lower end of the wheelchair support rod through a front auxiliary bracket, and a hand wheel is fixedly provided on the outer side of each wheelchair wheel.

[0019] Furthermore, two rear auxiliary brackets are fixedly connected to the rear side of the wheelchair support rod, and a rear auxiliary wheel is rotatably provided at the lower end of each of the rear auxiliary brackets. Each of the adjustment clamps and the corresponding tensioning clamps are connected to the wheelchair support rod.

[0020] The beneficial effects of the present invention are:

[0021] (1) By providing an eccentric wrench, an open clamp, an adjustment clamp and a tightening clamp, the technical effect that can be achieved is that an external thread is provided on the side of the tightening lock shaft close to the open clamp, the external thread is threadedly connected to the lower end of the open clamp, an internal thread is provided on the side of the tightening lock shaft close to the eccentric wrench, the internal thread is fixedly connected to the lower end of the eccentric wrench through a second top screw, a U-shaped notch is provided on the end of the tightening lock shaft close to the eccentric wrench, a flat head pin is provided in the U-shaped notch, the flat head pin is located at the lower end of the eccentric wrench, the end of the arc pad close to the eccentric wrench is an arc-shaped structure, the arc-shaped structure cooperates with the eccentric wrench, and a first top screw is fixedly provided on the inner side of the eccentric wrench;

[0022] Rotate the two eccentric wrenches outward along the flat pin, the eccentric wrench will move the tension lock shaft outward, drive the U-shaped structure of the open clamp to separate, so that the connecting rod is located inside the U-shaped structure of the open clamp, release the eccentric wrench, the eccentric wrench will move the tension lock shaft inward, drive the U-shaped structure of the open clamp to tighten, clamp the connecting rod, and make the first top screw contact with the open clamp. The eccentric wrench and the open clamp can adjust the rotation angle of the wheelchair, thereby improving the adaptability and comfort of the wheelchair. The tightness of the open clamp can be adjusted, which is convenient for clamping wheelchair support rods of different sizes, making the wheelchair clamped more firmly.

[0023] (2) By providing a height adjustment member, an angle adjustment member and a ratchet rod, the technical effect that can be achieved is that one end of the ratchet rod is fixedly connected to a width adjustment member, the other end of the ratchet rod is slidably connected to another width adjustment member, the outer side of each width adjustment member can be detachably connected to a height adjustment member, an angle adjustment member is fixedly provided on the outer side of each height adjustment member, each angle adjustment member is sleeved on a connecting rod, and the inside of each open clamp is connected to a connecting rod;

[0024] After adjusting the positions of the two connecting rods on the angle adjusting parts, tighten the bolts on the angle adjusting parts to fix the connecting rods, install the two angle adjusting parts at suitable positions of the height adjusting parts respectively, and adjust the position of the ratchet rod on the width adjusting part. The height adjusting part, the angle adjusting part and the ratchet rod can adjust different heights, widths and angles of the connecting components, which have wider applicability and better adaptability to different types of wheelchairs, and prevent separation due to loose fitting.

[0025] (3) By setting a fixed hook and a connecting support, the technical effect that can be achieved is that an adjustment handle is rotatably provided on the upper end of the support leg, an upper locking shaft and a lower locking shaft are fixedly provided on the connecting support, the upper locking shaft is located above the lower locking shaft, and the fixed hook is detachably connected to the upper locking shaft and the lower locking shaft;

[0026] Turn the adjustment handle to install the fixing hook on the connecting support so that the fixing hook cooperates with the upper locking shaft and the lower locking shaft, release the adjustment handle, and the fixing hook and the connecting support can connect the front assembly and the wheelchair assembly through the cooperation of the upper locking shaft and the lower locking shaft with the fixing hook, which is convenient for installation or disassembly and ensures the stability and reliability of the connection. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to facilitate understanding by those skilled in the art, the present invention is further described below with reference to the accompanying drawings.

[0028] Figure 1 is a first stereogram of the present invention;

[0029] Figure 2 is a second stereogram of the present invention;

[0030] Figure 3 is a first stereoscopic view of the vehicle head assembly of the present invention;

[0031] Figure 4 is a second stereoscopic view of the vehicle head assembly of the present invention;

[0032] Figure 5 A first stereoscopic view of the outer tube of the column, the connecting support and the support foot in the present invention;

[0033] Figure 6A second stereoscopic view of the outer tube of the column, the connecting support and the support foot of the present invention;

[0034] Figure 7 is a first stereoscopic view of the wheelchair assembly of the present invention;

[0035] Figure 8 is a second stereoscopic view of the wheelchair assembly of the present invention;

[0036] Fig. 9 A three-dimensional diagram of a connecting assembly and a connecting support member in the present invention;

[0037] Fig.10 is a first stereoscopic view of the connection assembly of the present invention;

[0038] Fig.11 is a second stereoscopic view of the connection assembly of the present invention;

[0039] Fig.12 It is a stereoscopic diagram of the eccentric wrench, the open clamp, the adjustment clamp and the tightening clamp in the present invention;

[0040] Fig.13 It is an exploded view of the eccentric wrench, the open clamp, the adjustment clamp and the tightening clamp in the present invention;

[0041] Description of reference numerals:

[0042] In the figure: 1, front assembly; 11, front handle; 12, battery bracket; 13, column outer tube; 14, connecting support; 15, support foot; 16, front wheel; 17, headlight; 18, front battery; 19, support column; 110, instrument panel; 111, adjustment handle; 112, support wheel; 113, upper locking shaft; 114, lower locking shaft;

[0043] 2. Wheelchair assembly; 21. Wheelchair armrest; 22. Wheelchair backrest; 23. Hand wheel; 24. Front auxiliary wheel; 25. Front auxiliary bracket; 26. Foot pedal; 27. Wheelchair support rod; 28. Wheelchair cushion; 29. ​​Wheelchair wheel; 210. Rear auxiliary wheel; 211. Rear auxiliary bracket;

[0044] 3. Connecting assembly; 31. Ratchet rod; 32. Connecting rod; 33. Angle adjustment piece; 34. Height adjustment piece; 35. Width adjustment piece; 36. Fixing hook; 37. Adjusting handle; 38. Eccentric wrench; 39. Open clamp; 310. Adjusting clamp; 311. Tightening clamp; 312. Arc pad; 313. First top screw; 314. Second top screw; 315. Tightening lock shaft; 316. Flat pin. DETAILED DESCRIPTION

[0045] The technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application; obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments, and all other embodiments obtained by ordinary technicians in this field based on the embodiments in the present application without making creative work are within the scope of protection of the present application.

[0046] In the description of the present application, it should be noted that the terms "upper", "lower", "inner", "outer", "top / bottom" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as limiting the present application. In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0047] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "set / connected", "connected", etc. should be understood in a broad sense. For example, "connected" 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 this application can be understood according to specific circumstances.

[0048] Reference Figures 1 to 13 , is an electric vehicle head quick rod connection device disclosed by the present invention, comprising a head assembly 1, a wheelchair assembly 2 and a connection assembly 3, the head assembly 1 can be detachably connected to one side of the connection assembly 3, and the wheelchair assembly 2 can be detachably connected to the other side of the connection assembly 3.

[0049] The connecting assembly 3 includes an eccentric wrench 38, an open hoop 39, an adjusting hoop 310 and a tightening hoop 311. An arc pad 312 is provided at one end of the eccentric wrench 38, the other end of the arc pad 312 is connected to the open hoop 39, the other end of the open hoop 39 is rotatably connected to the adjusting hoop 310, and the other end of the adjusting hoop 310 is detachably connected to the tightening hoop 311. The eccentric wrench 38, the arc pad 312 and the open hoop 39 are all sleeved on the tightening lock shaft 315.

[0050] An external thread is provided on the side of the tensioning lock shaft 315 close to the open clamp 39, and the external thread is threadedly connected to the lower end of the open clamp 39. An internal thread is provided on the side of the tensioning lock shaft 315 close to the eccentric wrench 38, and the internal thread is fixedly connected to the lower end of the eccentric wrench 38 through a second top screw 314.

[0051] A U-shaped groove is formed at one end of the tightening lock shaft 315 close to the eccentric wrench 38, and a flat head pin 316 is arranged in the U-shaped groove. The flat head pin 316 is located at the lower end of the eccentric wrench 38. The end of the arc pad 312 close to the eccentric wrench 38 is an arc-shaped structure, which cooperates with the eccentric wrench 38. A first top screw 313 is fixedly arranged on the inner side of the eccentric wrench 38.

[0052] The eccentric wrench 38 and the open clamp 39 can adjust the rotation angle of the wheelchair, thereby improving the adaptability and comfort of the wheelchair. The tightness of the open clamp 39 can be adjusted to facilitate clamping wheelchair support rods 27 of different sizes, making the wheelchair more firmly clamped.

[0053] The connecting assembly 3 further includes a ratchet rod 31 , two width adjusting members 35 , two height adjusting members 34 and two connecting rods 32 . One end of the ratchet rod 31 is fixedly connected to one width adjusting member 35 , and the other end of the ratchet rod 31 is slidably connected to the other width adjusting member 35 .

[0054] The outer side of each width adjustment member 35 can be detachably connected to a height adjustment member 34 , an angle adjustment member 33 is fixedly provided on the outer side of each height adjustment member 34 , each angle adjustment member 33 is sleeved on a connecting rod 32 , and a connecting rod 32 is connected to the inside of each open clamp 39 .

[0055] A fixed hook 36 is slidably provided on the ratchet rod 31, and an adjustment handle 37 is rotatably provided on the fixed hook 36. The height adjustment member 34, the angle adjustment member 33 and the ratchet rod 31 can adjust the different heights, widths and angles of the connecting assembly 3, and have a wider applicability, better adaptability to different types of wheelchairs, and prevent the phenomenon of separation due to loose fitting.

[0056] The front assembly 1 includes a front handle 11, a support column 19 and a front wheel 16. The front handle 11 is fixedly connected to the upper end of the support column 19, and the front wheel 16 is rotatably connected to the lower end of the support column 19. The support column 19 is sleeved with a column outer tube 13.

[0057] A battery holder 12 is fixedly mounted on the outer side of the column outer tube 13 , a front battery 18 is fixedly mounted on the outer side of the battery holder 12 , a headlight 17 is fixedly mounted on the support column 19 , the headlight 17 is located above the front wheel 16 , and a dashboard 110 is mounted on the front handle 11 .

[0058] A connecting support 14 is detachably provided on the inner side of the column outer tube 13, and a support leg 15 is rotatably provided on the inner side of the column outer tube 13. The connecting support 14 is located at the upper end of the support leg 15, and the support leg 15 is a T-shaped structure. A support wheel 112 is rotatably provided on both sides of the lower end of the support leg 15.

[0059] An adjustment handle 111 is rotatably provided at the upper end of the support leg 15 , and an upper locking shaft 113 and a lower locking shaft 114 are fixedly provided on the connecting support 14 . The upper locking shaft 113 is located above the lower locking shaft 114 , and the fixing hook 36 is detachably connected to the upper locking shaft 113 and the lower locking shaft 114 .

[0060] The fixing hook 36 and the connecting support 14 can connect the vehicle head assembly 1 and the wheelchair assembly 2 through the cooperation of the upper locking shaft 113 and the lower locking shaft 114 with the fixing hook 36, which is convenient for installation or disassembly and ensures the stability and reliability of the connection.

[0061] The wheelchair assembly 2 includes a wheelchair backrest 22, a wheelchair seat cushion 28, a wheelchair support rod 27 and two wheelchair wheels 29. The wheelchair backrest 22 and the wheelchair seat cushion 28 are both fixedly connected to the wheelchair support rod 27. The wheelchair backrest 22 and the wheelchair seat cushion 28 are 90 degrees apart. A wheelchair armrest 21 is fixedly provided on both sides of the wheelchair seat cushion 28, and a wheelchair wheel 29 is rotatably connected on both sides of the wheelchair support rod 27.

[0062] A foot pedal 26 is fixedly provided at the lower end of the wheelchair support rod 27, and a front auxiliary wheel 24 is rotatably provided on both sides of the lower end of the wheelchair support rod 27 through a front auxiliary bracket 25, and a hand wheel 23 is fixedly provided on the outer side of each wheelchair wheel 29.

[0063] Two rear auxiliary brackets 211 are fixedly connected to the rear side of the wheelchair support rod 27, and a rear auxiliary wheel 210 is rotatably provided at the lower end of each rear auxiliary bracket 211. Each adjustment clamp 310 and the corresponding tensioning clamp 311 are connected to the wheelchair support rod 27.

[0064] The open hoop 39 is in a U-shaped structure, the tension lock shaft 315 is fixed to one end of the U-shaped structure, and the other end of the U-shaped structure is rotatably connected to the adjustment hoop 310.

[0065] The working principle and use process of the present invention are as follows: the two eccentric wrenches 38 are rotated outward along the flat pin 316, and the eccentric wrenches 38 move the tension lock shaft 315 outward, driving the U-shaped structure of the open clamp 39 to separate, so that the connecting rod 32 is located inside the U-shaped structure of the open clamp 39, and the eccentric wrenches 38 are released, and the eccentric wrenches 38 move the tension lock shaft 315 inward, driving the U-shaped structure of the open clamp 39 to tighten, clamping the connecting rod 32, so that the first top screw 313 contacts the open clamp 39;

[0066] After adjusting the positions of the two connecting rods 32 on the angle adjusting member 33, tighten the bolts on the angle adjusting member 33 to fix the connecting rod 32, install the two angle adjusting members 33 at appropriate positions of the height adjusting member 34, and adjust the position of the ratchet rod 31 on the width adjusting member 35;

[0067] The adjusting handle 37 is turned to install the fixing hook 36 on the connecting support 14 so that the fixing hook 36 cooperates with the upper locking shaft 113 and the lower locking shaft 114 , and the adjusting handle 37 is released to connect the connecting assembly 3 and the vehicle head assembly 1 .

[0068] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any form. Although the present invention has been disclosed as a preferred embodiment as above, it is not used to limit the present invention. Any technical personnel in this field can make some changes or modify the technical contents disclosed above into equivalent embodiments without departing from the scope of the technical solution of the present invention. However, any brief modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention still fall within the scope of the technical solution of the present invention.

Claims

1. A quick rod connection device for electric vehicle head, characterized in that: The vehicle comprises a front assembly (1), a wheelchair assembly (2) and a connection assembly (3), wherein the front assembly (1) is detachably connected to one side of the connection assembly (3), and the wheelchair assembly (2) is detachably connected to the other side of the connection assembly (3); The connection assembly (3) comprises an eccentric wrench (38), an open hoop (39), an adjustment hoop (310) and a tensioning hoop (311); one end of the eccentric wrench (38) is provided with an arc pad (312); the other end of the arc pad (312) is connected to the open hoop (39); the other end of the open hoop (39) is rotatably connected to the adjustment hoop (310); the other end of the adjustment hoop (310) is detachably connected to the tensioning hoop (311); the eccentric wrench (38), the arc pad (312) and the open hoop (39) are all sleeved on a tensioning lock shaft (315).

2. The electric vehicle head quick rod connection device according to claim 1, characterized in that: The tensioning lock shaft (315) is provided with an external thread on one side close to the open clamp (39), and the external thread is threadedly connected to the lower end of the open clamp (39); the tensioning lock shaft (315) is provided with an internal thread on one side close to the eccentric wrench (38), and the internal thread is fixedly connected to the lower end of the eccentric wrench (38) through a second top screw (314); A U-shaped notch is provided at one end of the tensioning lock shaft (315) close to the eccentric wrench (38), a flat head pin (316) is arranged in the U-shaped notch, and the flat head pin (316) is located at the lower end of the eccentric wrench (38). The end of the arc pad (312) close to the eccentric wrench (38) is an arc-shaped structure, and the arc-shaped structure cooperates with the eccentric wrench (38). A first top screw (313) is fixedly arranged on the inner side of the eccentric wrench (38).

3. The electric vehicle head quick rod connection device according to claim 2, characterized in that: The connecting assembly (3) further comprises a ratchet rod (31), two width adjusting members (35), two height adjusting members (34) and two connecting rods (32), one end of the ratchet rod (31) being fixedly connected to one of the width adjusting members (35), and the other end of the ratchet rod (31) being slidably connected to the other of the width adjusting members (35); The outer side of each width adjustment member (35) can be detachably connected to one of the height adjustment members (34); an angle adjustment member (33) is fixedly arranged on the outer side of each of the height adjustment members (34); each of the angle adjustment members (33) is sleeved on one of the connecting rods (32); and the interior of each of the open clamps (39) is connected to one of the connecting rods (32).

4. The electric vehicle head quick rod connection device according to claim 3, characterized in that: A fixing hook (36) is slidably arranged on the ratchet rod (31), and an adjusting handle (37) is rotatably arranged on the fixing hook (36).

5. The electric vehicle head quick rod connection device according to claim 4, characterized in that: The front assembly (1) comprises a front handle (11), a support column (19) and a front wheel (16); the front handle (11) is fixedly connected to the upper end of the support column (19); the front wheel (16) is rotatably connected to the lower end of the support column (19); and a column outer tube (13) is sleeved on the support column (19); A battery holder (12) is fixedly arranged on the outer side of the column outer tube (13), a front battery (18) is fixedly arranged on the outer side of the battery holder (12), a headlight (17) is fixedly arranged on the support column (19), the headlight (17) is located above the head wheel (16), and a dashboard (110) is arranged on the head handle (11).

6. The electric vehicle head quick rod connection device according to claim 5, characterized in that: A connecting support (14) is detachably provided on the inner side of the outer tube (13) of the column, a support leg (15) is rotatably provided on the inner side of the outer tube (13) of the column, the connecting support (14) is located at the upper end of the support leg (15), the support leg (15) is in a T-shaped structure, and a support wheel (112) is rotatably provided on both sides of the lower end of the support leg (15).

7. The electric vehicle head quick rod connection device according to claim 6, characterized in that: An adjusting handle (111) is rotatably provided at the upper end of the support leg (15); an upper locking shaft (113) and a lower locking shaft (114) are fixedly provided on the connecting support (14); the upper locking shaft (113) is located above the lower locking shaft (114); and the fixing hook (36) is detachably connected to the upper locking shaft (113) and the lower locking shaft (114).

8. The electric vehicle head quick rod connection device according to claim 1, characterized in that: The wheelchair assembly (2) comprises a wheelchair backrest (22), a wheelchair seat cushion (28), a wheelchair support rod (27) and two wheelchair wheels (29); the wheelchair backrest (22) and the wheelchair seat cushion (28) are both fixedly connected to the wheelchair support rod (27); the wheelchair backrest (22) and the wheelchair seat cushion (28) are at an angle of 90 degrees; a wheelchair armrest (21) is fixedly provided on both sides of the wheelchair seat cushion (28); and a wheelchair wheel (29) is rotatably connected to both sides of the wheelchair support rod (27).

9. The electric vehicle head quick rod connection device according to claim 8, characterized in that: A foot pedal (26) is fixedly provided at the lower end of the wheelchair support rod (27), and a front auxiliary wheel (24) is rotatably provided on both sides of the lower end of the wheelchair support rod (27) through a front auxiliary bracket (25), and a hand wheel (23) is fixedly provided on the outer side of each wheelchair wheel (29).

10. The electric vehicle head quick rod connection device according to claim 9, characterized in that: Two rear auxiliary brackets (211) are fixedly connected to the rear side of the wheelchair support rod (27), a rear auxiliary wheel (210) is rotatably provided at the lower end of each rear auxiliary bracket (211), and each adjustment hoop (310) and the corresponding tension hoop (311) are connected to the wheelchair support rod (27).

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