A quick stick connection device for an electric locomotive

Abstract

The application relates to the technical field of wheelchairs, and particularly discloses a quick rod connecting device for an electric car head, which comprises a car head assembly, a wheelchair assembly and a connecting assembly, the car 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 open clamp, an adjusting clamp and a tension clamp, one end of the eccentric wrench is provided with a circular arc pad, the other end of the circular arc pad is connected to the open clamp, the other end of the open clamp is rotationally connected to the adjusting clamp, the other end of the adjusting clamp is detachably connected to the tension clamp, and the eccentric wrench, the circular arc pad and the open clamp are all sleeved on a tension lock shaft. The application can adjust the rotating angle of the wheelchair, can adjust the tightness of the open clamp, has wider applicability and is better adapted to different types of wheelchairs.

Description

Technical Field

[0001] The present 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] Wheelchairs come in a wide variety of types and functions, including standard wheelchairs, high-back reclining wheelchairs, electric wheelchairs, toilet-mounted wheelchairs, and standing-assistance wheelchairs. Electric wheelchairs are primarily used by individuals with high-level paraplegia or hemiplegia who can control the wheelchair with one hand, and have become a popular means of transportation for the disabled, elderly, and frail. In outdoor settings or large venues, where no one is available to push the wheelchair, electric wheelchairs can expand their range of motion and save energy. Since electric wheelchairs are mostly used indoors, where the power function is not required, they typically feature a detachable front structure, making them easier to store indoors.

[0003] The current existing technology still has the following areas for improvement: the connection between the existing electric head and wheelchair is usually connected using a fixed bracket, which cannot adjust the position between the wheelchair and the electric head. It 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. The wheelchair cannot be rotated 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-mentioned 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 through 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, the tensioning lock shaft is provided with an external thread on a side close to the open clamp, and the external thread is threadedly connected to the lower end of the open clamp. The tensioning lock shaft is provided with an internal thread on a side 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 notch is provided at one 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 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 fixed 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 a height adjustment member, and 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.

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

[0015] Furthermore, a connecting support is detachably provided on the inner side of the outer tube of the column, and 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, and the support leg is a T-shaped structure. 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, and an upper locking shaft and a lower locking shaft are fixedly provided on the connecting support member. 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] Further, the wheelchair assembly comprises a wheelchair backrest, a wheelchair cushion, a wheelchair support rod and two wheelchair wheels, the wheelchair backrest and the wheelchair cushion are fixedly connected on the wheelchair support rod, the wheelchair backrest and the wheelchair cushion are 90°, two wheelchair armrests are fixedly arranged on the two sides of the wheelchair cushion respectively, and one wheelchair wheel is rotatably connected on the two sides of the wheelchair support rod respectively.

[0018] Further, a footboard is fixedly arranged on the lower end of the wheelchair support rod, and a front auxiliary wheel is rotatably arranged on the two sides of the lower end of the wheelchair support rod through a front auxiliary support.

[0019] Further, two rear auxiliary supports are fixedly connected on the rear side of the wheelchair support rod, and a rear auxiliary wheel is rotatably arranged on the lower end of each rear auxiliary support.

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

[0021] (1) By setting the eccentric wrench, the open clamp, the adjusting clamp and the tightening clamp, the technical effect achieved is that the side of the tightening lock shaft close to the open clamp is provided with external threads, the external threads are threadedly connected with the lower end of the open clamp, the side of the tightening lock shaft close to the eccentric wrench is provided with internal threads, the internal threads are fixedly connected with the lower end of the eccentric wrench through the second jackscrew, the end of the tightening lock shaft close to the eccentric wrench is provided with a U-shaped notch, a flat head pin is arranged in the U-shaped notch and located at the lower end of the eccentric wrench, the end of the circular arc pad close to the eccentric wrench is of a circular arc structure, the circular arc structure is matched with the eccentric wrench, and the inner side of the eccentric wrench is fixedly provided with a first jackscrew.

[0022] The two eccentric wrenches are rotated outward along the flat head pin, the eccentric wrench moves the tightening lock shaft outward, drives the U-shaped structure of the open clamp to separate, and makes the connecting rod be located inside the U-shaped structure of the open clamp, the eccentric wrench moves the tightening lock shaft inward, drives the U-shaped structure of the open clamp to tighten, clamps the connecting rod, makes the first jackscrew 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, different sizes of the wheelchair support rod can be clamped, and the clamping of the wheelchair is more firm.

[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 interior 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 appropriate positions of the height adjusting parts respectively, and adjust the position of the ratchet rod on the width adjusting part. The height adjusting part, angle adjusting part and 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 fit.

[0025] (3) By providing 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 head 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] 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 perspective view of the present invention;

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

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

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

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

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

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

[0036] Figure 9 A perspective view of the connecting assembly and the connecting support member of the present invention;

[0037] Figure 10 is a first stereoscopic view of the connecting assembly of the present invention;

[0038] Figure 11 is a second stereoscopic view of the connecting assembly of the present invention;

[0039] Figure 12 A three-dimensional diagram of the eccentric wrench, the open clamp, the adjustment clamp, and the tightening clamp in the present invention;

[0040] Figure 13 Exploded view of the eccentric wrench, open clamp, adjustment clamp and 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 components; 21. Wheelchair armrests; 22. Wheelchair backrest; 23. Hand wheel; 24. Front auxiliary wheels; 25. Front auxiliary support; 26. Footrest; 27. Wheelchair support bar; 28. Wheelchair seat cushion; 29. ​​Wheelchair wheels; 210. Rear auxiliary wheels; 211. Rear auxiliary support;

[0044] 3. Connecting assembly; 31. Ratchet rod; 32. Connecting rod; 33. Angle adjustment member; 34. Height adjustment member; 35. Width adjustment member; 36. Fixing hook; 37. Adjustment handle; 38. Eccentric wrench; 39. Open clamp; 310. Adjustment clamp; 311. Tightening clamp; 312. Arc pad; 313. First jackscrew; 314. Second jackscrew; 315. Tightening lock shaft; 316. Flat head 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; it is obvious that the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application.

[0046] In the description of this application, it should be noted that the terms "upper," "lower," "inner," "outer," "top / bottom," and the like, indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely to facilitate the description of this application and simplify the description. They do not indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this application. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0047] In the description of this application, it should be noted that, unless otherwise expressly specified or limited, the terms "installed," "provided with," "mounted / connected," and "connected" should be understood in a broad sense. For example, "connected" can mean 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 an indirect connection through an intermediate medium, or it can be internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in this application based on the specific circumstances.

[0048] Reference Figures 1 to 13 , which is an electric vehicle head quick rod connection device disclosed by the present invention, including 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, and 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 mounted on the tightening lock shaft 315.

[0050] An external thread is provided on the side of the tightening 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 tightening 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 slot is provided at one end of the tightening lock shaft 315 close to the eccentric wrench 38, and a flat head pin 316 is provided in the U-shaped slot. The flat head pin 316 is located at the lower end of the eccentric wrench 38. The arc pad 312 has an arc-shaped structure at one end close to the eccentric wrench 38, and the arc-shaped structure cooperates with the eccentric wrench 38. A first top screw 313 is fixed 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 also 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 , and 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 the inside of each open clamp 39 is connected to a connecting rod 32 .

[0055] A fixed hook 36 is slidably mounted on the ratchet lever 31, and an adjustment handle 37 is pivotally mounted on the fixed hook 36. The height adjustment member 34, angle adjustment member 33, and ratchet lever 31 enable the connection assembly 3 to be adjusted to different heights, widths, and angles, providing a wider range of applicability, better adaptability to different types of wheelchairs, and preventing disengagement due to a loose fit.

[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 provided 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 outer tube 13 of the column, and 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, 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 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. 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 tightening 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 usage 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 tensioning 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. The eccentric wrenches 38 are released, and the eccentric wrenches 38 move the tensioning lock shaft 315 inward, driving the U-shaped structure of the open clamp 39 to tighten, clamping the connecting rod 32, and making the first top screw 313 contact the open clamp 39;

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

[0067] Turn the adjustment handle 37 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 release the adjustment handle 37 to connect the connecting assembly 3 and the vehicle head assembly 1 .

[0068] The above description is merely a preferred embodiment of the present invention and does not constitute any form of limitation to the present invention. Although the present invention has been disclosed as a preferred embodiment as above, it is not intended to limit the present invention. Any person skilled in the art can make some changes or modifications to equivalent embodiments using the technical contents disclosed above 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 an electric vehicle head, characterized by: The invention comprises a vehicle head assembly (1), a wheelchair assembly (2) and a connecting assembly (3), wherein the vehicle head assembly (1) is detachably connected to one side of the connecting assembly (3), and the wheelchair assembly (2) is detachably connected to the other side of the connecting assembly (3); The connecting assembly (3) comprises an eccentric wrench (38), an open hoop (39), an adjustment hoop (310) and a tightening 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 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); Each of the adjustment hoop (310) and the corresponding tightening hoop (311) are connected to the wheelchair support rod (27); 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 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 the interior of each open clamp (39) is connected to a connecting rod (32).

2. The electric vehicle head quick rod connection device according to claim 1, characterized in that: The tightening 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 tightening 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 tightening lock shaft (315) close to the eccentric wrench (38), a flat-head pin (316) is provided in the U-shaped notch, and the flat-head pin (316) is located at the lower end of the eccentric wrench (38). The arc pad (312) is in an arc-shaped structure at one end close to the eccentric wrench (38), and the arc-shaped structure cooperates with the eccentric wrench (38). A first top screw (313) is fixedly provided 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: A fixing hook (36) is slidably provided on the ratchet rod (31), and an adjusting handle (37) is rotatably provided on the fixing hook (36).

4. The electric vehicle head quick rod connection device according to claim 3, characterized in that: The front assembly (1) comprises a front handle (11), a support column (19) and a front wheel (16), wherein 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), and a column outer tube (13) is sleeved on the support column (19); A battery holder (12) is fixedly provided on the outer side of the column outer tube (13), a front battery (18) is fixedly provided on the outer side of the battery holder (12), a headlight (17) is fixedly provided on the support column (19), the headlight (17) is located above the head wheel (16), and a dashboard (110) is provided on the head handle (11).

5. The electric vehicle head quick rod connection device according to claim 4, characterized in that: 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 in a T-shaped structure. A support wheel (112) is rotatably provided on both sides of the lower end of the support leg (15).

6. The electric vehicle head quick rod connection device according to claim 5, 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 member (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).

7. 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 90 degrees apart; a wheelchair armrest (21) is fixedly provided on both sides of the wheelchair seat cushion (28); and the wheelchair wheel (29) is rotatably connected to both sides of the wheelchair support rod (27).

8. The electric vehicle head quick rod connection device according to claim 7, 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).

9. The electric vehicle head quick rod connection device according to claim 8, characterized in that: 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).

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