Quick connection structure and electric wheelchair head

Through the double snap connection and eccentric shaft design of the quick connection structure, the problem that the wheelchair connection structure cannot take into account both convenience and stability is solved, and the user's simple operation, stable connection, safe and reliable effect is achieved.

CN112168516BActive Publication Date: 2025-03-25GUANGDONG SHUNDE YITU SPORTS TECH CO LTD
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Patent Information

Application Number
CN202011176264.4
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2020-10-29
Publication Date
2025-03-25
Estimated Expiration
2040-10-29

AI Technical Summary

Technical Problem

In the prior art, the connecting structure of the wheelchair cannot take into account the user's needs for convenience of assembly and disassembly and connection stability, which makes it difficult for users to operate and long-term use can easily lead to loosening of the connection structure and safety hazards.

Method used

It adopts a quick connection structure, including a hook frame, a hook piece and a locking hook claw, and through the design of a double snap connection and eccentric shaft, it realizes simple and quick connection and stable fixation of the front and connecting pipe.

Benefits of technology

It improves the convenience of user assembly and disassembly and the stability of connection, reduces operating time, avoids excessive load and looseness of the connection structure, and ensures safe use.

✦ Generated by Eureka AI based on patent content.

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Abstract

An embodiment of the present invention provides a quick connection structure, characterized in that it includes a hook frame, the hook frame includes a first rod body and a second rod body; a hook member, the hook member includes a first hook and a receiving groove, the first hook is used to buckle the first rod body, and the receiving groove is used to abut the second rod body; a locking claw, the locking claw includes a second hook, the locking claw and the hook member are rotatably connected together, and the second hook is used to buckle the second rod body. Through the structural setting mode of the quick connection structure of the present invention, the buckling connection operation is simple and convenient, and only takes a small amount of time for the user. At the same time, through the double buckling connection between the first hook and the first rod body and between the second hook and the second rod body, the load pressure of the quick connection structure on the electric wheelchair can be effectively relieved. The quick connection structure of the present invention can take into account the user's requirements for assembly and disassembly convenience and connection stability.
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Description

Technical Field

[0001] The present invention relates to the technical field of travel-replacing tool products, and in particular to a quick connection structure and an electric wheelchair head thereof. Background Art

[0002] A wheelchair is a chair with wheels that can help replace walking. It is usually used as an important means of mobility for the injured, sick, and disabled to recover at home, for turnover transportation, for medical treatment, and for outdoor activities. In modern society, wheelchairs have become a convenient auxiliary means of transportation used by the elderly. Currently, there is a rideable wheelchair on the market, which consists of a front part and a wheelchair. The front part and the wheelchair are detachably connected together through various types of connection structures.

[0003] This rideable wheelchair can be used as follows: when you need to go out, connect the wheelchair part and the front part together through a connecting structure to realize the riding function of the wheelchair; when the riding function is not needed, remove the front part from the wheelchair part. However, in order to achieve the connection stability between the wheelchair part and the front part, the connection structure is usually set to be more complicated in the prior art. Too complicated a structure setting method will increase the difficulty and operation time of user assembly and disassembly, and it is not convenient for users to use the electric wheelchair. If the connection structure is set too simple, since the connection structure between the wheelchair part and the front part usually bears a large load pressure, resulting in a large structural loss, long-term use can easily lead to the loosening of the connection structure and even cause safety hazards. In summary, the connection structure of the wheelchair in the prior art cannot take into account the needs of user assembly and disassembly convenience and connection stability. Summary of the invention

[0004] In order to solve the problem that the connection structure of the wheelchair in the prior art cannot take into account the requirements of user's assembly and disassembly convenience and connection stability, the present invention provides a quick connection structure and an electric wheelchair head thereof.

[0005] A quick connection structure, characterized by comprising:

[0006] A hook frame, the hook frame comprising a first rod body and a second rod body;

[0007] A hook member, the hook member comprising a first hook and a receiving groove, the first hook being used to buckle the first rod body, and the receiving groove being used to abut against the second rod body;

[0008] The locking hook claw comprises a second hook, the locking hook claw and the hook member are rotatably connected together, and the second hook is used to buckle the second rod body.

[0009] Furthermore, the hook member and the locking claw are rotatably connected together via an eccentric shaft, the eccentric shaft comprises a main body and an eccentric portion, and the axis of the main body and the axis of the eccentric portion are not arranged on the same straight line.

[0010] Furthermore, the hook member further comprises a mounting through hole, the locking hook claw comprises a connecting hole, the main body portion is rotatably disposed in the mounting through hole, and the eccentric portion is fixedly disposed in the connecting hole.

[0011] Furthermore, the locking hook claw also includes an adjusting portion, and the adjusting portion and the second hook are respectively arranged on both sides of the connecting hole, and the adjusting portion is used to control the rotational movement of the locking hook claw, thereby controlling the rotational movement of the second hook.

[0012] Using the same design concept, the present invention also provides an electric wheelchair head, which includes the quick connection structure described above.

[0013] Furthermore, it also includes a connecting tube, and the hook member also includes a connecting portion, and one end of the connecting tube facing the quick connecting structure is connected to the connecting portion at an adjustable angle.

[0014] Furthermore, a limiting protrusion is provided at one end of the connecting pipe facing the quick connecting structure, and a limiting groove is provided at the connecting portion, and the limiting protrusion is used to cooperate with the limiting groove so that the connecting pipe and the connecting portion remain relatively fixed.

[0015] Furthermore, a limiting groove is provided at one end of the connecting tube facing the quick connecting structure, and a limiting protrusion is provided at the connecting portion, and the limiting groove is used to cooperate with the limiting protrusion so that the connecting tube and the connecting portion remain relatively fixed.

[0016] Furthermore, it also includes a head pipe, and the hook rack is detachably arranged on the head pipe.

[0017] Furthermore, the hook frame is provided with a plurality of first assembly holes, the head tube is provided with a plurality of second assembly holes arranged in a vertical direction, and the hook frame and the head tube are detachably connected together by connecting components passing through the first assembly holes and the second assembly holes.

[0018] The present invention provides a quick connection structure, which comprises a hook frame, a hook member and a locking hook claw. The hook frame is used to be fixedly arranged on the front of a vehicle; the hook member and the locking hook claw can be rotatably connected together and are assembled on the front connecting pipe. The front of the vehicle and the front connecting pipe are fixedly connected together through the buckling connection between the hook frame, the hook member and the locking hook claw, thereby completing the assembly of the front part and the front connecting pipe part. Specifically, the first hook on the hook frame is a hook-shaped structure with an opening facing downward. When assembling, it is buckled on the first rod body of the hook frame from top to bottom, so that the first layer of buckling and fixed connection between the hook frame and the hook member can be completed. More specifically, when assembling, the first hook is first aligned with the first rod body so that it is buckled and arranged on the first rod body; then the locking hook claw is rotated relative to the hook member to a position where the second hook does not block the accommodating groove, so that the second rod body enters the accommodating groove and is abutted against it; finally, the locking hook claw is rotated in the opposite direction or reset, so that the second hook is buckled and arranged on the second rod body, and finally the buckling connection between the hook frame, the hook member and the locking hook claw is completed. With the structural setting of the present invention, when the user needs to connect the vehicle head and the connecting pipe, the user can directly buckle the first hook on the first rod body and then buckle the second hook on the second rod body. The operation is simple and convenient and only takes a small amount of time for the user.

[0019] At the same time, through the double buckling connection between the first hook and the first rod body, and between the second hook and the second rod body, the load pressure of the connection structure on the electric wheelchair can be effectively relieved, avoiding the connection structure from generating large structural losses, which may easily lead to the problem of loosening of the connection structure in the case of long-term use. In summary, the quick connection structure of the present invention can take into account the needs of user convenience in assembly and disassembly and connection stability. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 is a schematic diagram of the front of the electric wheelchair of the present invention;

[0021] Figure 2 yes Figure 1 A partial enlarged schematic diagram of the circled part;

[0022] Figure 3 is a schematic diagram of a quick connection structure of the present invention;

[0023] Figure 4 is a schematic diagram of a hook rack of the present invention;

[0024] Figure 5 is a schematic diagram of a hook member and a locking hook claw of the present invention;

[0025] Figure 6 is a schematic diagram of a hook member of the present invention;

[0026] Figure 7is a schematic diagram of a locking hook of the present invention;

[0027] Figure 8 is a schematic diagram of an eccentric shaft of the present invention;

[0028] Fig. 9 is a schematic diagram of a connecting pipe and a quick connection structure of the present invention;

[0029] Fig.10 is a schematic diagram of a connecting pipe of the present invention;

[0030] Fig.11 is a schematic diagram of the head pipe and the hook rack of the present invention;

[0031] Explanation of the accompanying drawings: 1. quick connection structure; 2. hook frame; 201. first rod body; 202. second rod body; 203. first assembly hole; 3. hook member; 301. first hook; 302. accommodating groove; 303. mounting through hole; 304. connecting part; 3041. limiting protrusion or limiting groove; 4. locking hook claw; 401. second hook; 402. connecting hole; 403. adjusting part; 5. eccentric shaft; 501. main body; 502. eccentric part; 6. head pipe; 601. second assembly hole; 7. connecting pipe; 701. limiting groove or limiting protrusion. DETAILED DESCRIPTION

[0032] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0033] See also Figure 1-Figure 7 As shown, according to an embodiment of the present invention, the quick connection structure 1 includes a hook frame 2, and the hook frame 2 includes a first rod 201 and a second rod 202. Specifically, the first rod 201 and the second rod 202 are arranged up and down, and the first rod 201 is arranged on the top of the second rod 202, and serves as a structural part that is buckled and connected with the hook member 3 and the locking hook claw 4.

[0034] The quick connection structure 1 also includes a hook member 3, which includes a first hook 301 and a receiving groove 302. The first hook 301 is used to buckle the first rod 201, and the receiving groove 302 is used to abut against the second rod 202. Specifically, the first hook 301 is a hook-shaped structure with an opening facing downward. When assembling, it is buckled on the first rod 201 from top to bottom, so that the first layer of buckling and fixing connection between the hook frame 2 and the hook member 3 can be completed.

[0035] The quick connection structure 1 also includes a locking hook 4, which includes a second hook 401. The locking hook 401 and the hook member 3 are rotatably connected together, and the second hook 401 is used to buckle the second rod 202. In general, when assembling the quick connection structure 1, first align the first hook 301 with the first rod 201 so that it is buckled and set on the first rod 201; then rotate the locking hook 4 relative to the hook member 3 to a position where the second hook 401 does not block the accommodating groove 302, so that the second fixing part 102 enters the accommodating groove 302 and abuts against it; finally rotate or reset the locking hook structure 3 in the opposite direction so that the second hook 401 is buckled and set on the second rod 202, and finally complete the buckling connection between the hook frame 2 and the hook member 3 and the locking hook 4.

[0036] Among them, the hook frame 2 is fixedly arranged on the front of the vehicle; and the hook member 3 and the locking hook claw 4 can be rotatably connected together and are combined and arranged on the front connecting pipe. The front of the vehicle and the front connecting pipe are fixedly connected together by the buckling connection between the hook frame 2 and the hook member 3 and the locking hook claw 4, thereby completing the assembly of the front part and the front connecting pipe part. Therefore, through the quick connection structure setting mode of the present invention, when the user needs to connect the front part and the connecting pipe part, he can directly buckle the first hook 301 on the first rod body 201, and then buckle the second hook 401 on the second rod body 202. The operation is simple and convenient, and only takes a small amount of time for the user. At the same time, through the double buckling connection between the first hook 301 and the first rod body 201, and between the second hook 401 and the second rod body 202, the load pressure of the structural connection of the electric wheelchair can be effectively alleviated, and the problem that the connection structure of the electric wheelchair in the prior art often bears a large load during use, thereby generating a large structural loss, and the connection structure is easily loosened after long-term use is easily solved. In summary, the quick connection structure of the present invention can take into account both the user's requirements for assembly and disassembly convenience and connection stability.

[0037] See also Figure 5 and Figure 8As shown, in one embodiment of the present invention, the hook member 3 and the locking hook claw 4 are rotatably connected together through the eccentric shaft 5, and the eccentric shaft 5 includes a main body 501 and an eccentric part 502, and the axis of the main body 501 and the axis of the eccentric part 502 are not arranged in the same straight line. Specifically, since the axis of the main body 501 and the axis of the eccentric part 502 do not coincide, the position of the eccentric part 502 can be offset during the rotation of the main body 501, and the position of the eccentric part 502 can be adjusted by rotating the main body 501. The eccentric shaft 5 crosses the hook member 3 and the locking hook claw 4, and connects the two together so that they can rotate relative to each other. When it is necessary to buckle the second hook 401 on the second rod body 202, the second hook 401 is rotated to a position that does not block the accommodating groove 302 by rotating the locking hook claw 4, and the second rod body 202 can be pushed into the accommodating groove 302. Then rotate the locking hook 4 in the opposite direction to make the second hook 401 engage with the second rod body 202. At this time, one side of the second rod body 202 can be abutted against the accommodating groove 302, and the other side can be abutted against the inner side of the second hook 401. That is, the second rod body 202 is fixed between the accommodating groove 302 and the second hook 401, completing the second layer of engagement and fixed connection of the quick connection structure.

[0038] See also Figure 5-Figure 7 As shown, in a further solution of the above embodiment, the hook member 3 further includes a mounting through hole 303, the locking hook claw 4 includes a connecting hole 402, the main body 501 is rotatably disposed in the mounting through hole 303, and the eccentric portion 502 is fixedly disposed in the connecting hole 402. Specifically, that is to say, the hook member 3 is rotatably connected to the main body 501 through the mounting through hole 303; and the locking hook claw 4 is fixedly connected to the eccentric portion 502 through the connecting hole 402. The electric wheelchair generates a large load pressure on the quick connection structure during use. In the case of long-term use, a certain degree of wear will occur between the second rod body 202 and the abutting second hook 401 or the accommodating groove 302, resulting in a loose fit. If the accessories are replaced for this reason, the cost is too high and the time is long.

[0039] In this embodiment of the present invention, the position of the eccentric portion 502 can be adjusted by rotating the main body 501, and then the position of the locking hook 4 can be adjusted, and finally the position of the second hook 401 on the locking hook 4 can be adjusted. Therefore, even if the inner side of the second hook 401 is worn due to load pressure, the position of the second hook 401 can be adjusted to make it match and buckle on the second rod body 202, so as to prevent a gap from being generated in the matching parts of the two, thereby avoiding the situation of buckling looseness.

[0040] See also Figure 7As shown, in a further solution of the above embodiment, the locking hook 4 also includes an adjustment portion 403, and the adjustment portion 403 and the second hook 401 are respectively arranged on both sides of the connecting hole 402, and the adjustment portion 403 is used to control the rotational movement of the locking hook 4, and then control the rotational movement of the second hook 401. Specifically, since the adjustment portion 403 and the second hook 401 are respectively arranged on both sides of the connecting hole 402, and the locking hook 4 is rotatably connected to the hook member 3 at the connecting hole 402 through the eccentric shaft 5, the rotational movement of the second hook 401 can be achieved by manually moving the adjustment portion 403. During specific assembly, first move the adjustment portion 403 in the clockwise direction to rotate the second hook 401 to a position where it does not block the accommodating groove 302, and then the second rod body 202 can be pushed into the accommodating groove 302. Then, the adjusting portion 403 is moved counterclockwise to reset, so that the second hook 401 is rotated and buckled on the second rod body 202. At this time, the second rod body 202 can be fixed between the accommodating groove 302 and the second hook 401, completing the second layer of buckling and fixing connection of the quick connection structure.

[0041] In combination with the above embodiments, the first hook 301 and the second hook 401 are respectively provided with grooves formed downwards, and the grooves are respectively used to accommodate the first rod body 201 and the second rod body 202, so that the first hook 301 and the second hook 401 are respectively buckled and set on the first rod body 201 and the second rod body 202. When the first hook 301 and the second hook 401 are respectively buckled on the first rod body 201 and the second rod body 202, the first rod body 201 and the second rod body 202 are limited by the grooves in the horizontal direction and cannot be disengaged, thereby realizing the buckled connection between the hook frame 2 and the hook member 3 and the locking hook claw 4. When it is necessary to release the buckled connection, the second rod body 202 and the second hook 401 are first disengaged by toggling the adjustment part 403; then the first hook 301 is lifted to disengage the first rod body 201 and the first hook 301, and finally the hook frame 2 and the hook member 3 and the locking hook claw 4 are separated.

[0042] Based on the same design concept, the present invention also provides an electric wheelchair head, which includes the quick connection structure in the above embodiment.

[0043] See also Fig. 9 and Fig.10As shown, in one embodiment of the present invention, the front of the electric wheelchair further includes a connecting pipe 7, and the hook member further includes a connecting portion 304, and the end of the connecting pipe 7 facing the quick connection structure 1 and the connecting portion 304 are connected together with an adjustable angle. Specifically, the end of the connecting pipe 7 facing the quick connection structure 1 and the connecting portion 304 can rotate with each other, so that the angle between the two can be adjusted. In the prior art, the front and seat of the electric wheelchair are usually fixedly connected, so the inclination of the front cannot be adjusted. That is, under this condition, the user cannot adjust the inclination of the front according to his or her own usage habits, body shape, usage preferences and other needs, resulting in the user being unable to drive the electric wheelchair conveniently and comfortably in most cases. The connecting pipe 7 provided by the present invention is used to connect with the wheelchair part (that is, the seat part), and the inclination of the wheelchair front can be adjusted by rotating the connecting pipe 7 or the connecting portion 304 to adjust the angle between the two. Furthermore, since the wheelchair front and the wheelchair seat are connected by the connecting pipe 7, when the inclination of the wheelchair front changes, the height of the front end of the seat also changes accordingly. In this way, the user can synchronously adjust the height of the wheelchair front and the seat to meet the user's needs.

[0044] See also Figure 7 and Fig.10 As shown, in a further solution of the above embodiment, a limiting protrusion 701 is provided at one end of the connecting tube 7 facing the quick connection structure 1, and a limiting groove 3041 is provided at the connecting portion 304. The limiting protrusion 701 is used to cooperate with the limiting groove 3041 so that the connecting tube 7 and the connecting portion 304 are kept relatively fixed. Specifically, the limiting protrusion 701 on the connecting tube 7 and the limiting groove 3041 on the connecting portion 304 are arranged on the surfaces where the two are abutted. During assembly, the inclination angle between the connecting tube 7 and the connecting portion 304 is adjusted first, and then the limiting protrusion 701 on the connecting tube 7 is aligned with the limiting groove 3041 on the connecting portion 304 so that the two are matched. At this time, due to the limiting blocking effect between the limiting protrusion 701 and the limiting groove 3041, the connecting tube 7 and the connecting portion 304 cannot rotate relative to each other, that is, the relative fixed setting between the connecting tube 7 and the connecting portion 304 has been achieved.

[0045] In a further technical solution, bolts or screws can be passed through the connecting pipe 7 and the connecting part 304, and the two can be further fixedly connected by tightening the bolts or screws; when the angle needs to be adjusted, the bolts or screws can be loosened, the angle between the connecting pipe 7 and the connecting part 304 can be adjusted, and then the limiting protrusion 701 can be aligned with the limiting groove 3041, and finally the bolts or screws can be tightened again. The whole adjustment operation process is simple and convenient, takes less time for users, and takes into account the user's needs for assembly and disassembly convenience and connection stability.

[0046] Alternatively, the above embodiment has an optional solution, wherein a limiting groove 701 is provided at one end of the connecting tube 7 facing the quick connection structure 1, and a limiting protrusion 3041 is provided at the connecting portion, and the limiting groove 701 is used to cooperate with the limiting protrusion 3041 so that the connecting tube 7 and the connecting portion 304 are relatively fixed. The same principle is adopted as the further solution of the above embodiment. In this embodiment, a solution is adopted in which a limiting groove 701 is provided at one end of the connecting tube 7 facing the quick connection structure 1, and a limiting protrusion 3041 is provided at the connecting portion. The principle of this embodiment is also to achieve the effect of relatively fixing the connecting tube 7 and the connecting portion 304 through the cooperation of the limiting protrusion 3041 and the limiting groove 701, and finally the purpose of simple and convenient adjustment operation and short user time consumption can be achieved, and the specific process will not be repeated.

[0047] See also Figure 1 and Fig.11 As shown, in another embodiment of the present invention, the front of the electric wheelchair further includes a front tube 6, and the hook frame 2 is detachably arranged on the front tube 6. Specifically, the front tube 6 is a tubular structure vertically arranged on the front of the wheelchair, and the hook frame 2 is arranged on the front tube 6, so that the connecting tube 7 at the other end of the quick connection structure 1 and the front tube 6 are indirectly connected, and a certain angle is formed between the two. Furthermore, since the hook frame 2 and the front tube 6 are detachably connected, the angle between the connecting tube 7 and the front tube 6 can be adjusted by adjusting the different positions of the hook frame 2 on the front tube 6, thereby realizing the adjustment of the inclination of the wheelchair front, so that the user can adjust the inclination of the wheelchair front according to his own usage habits, body shape, usage preferences and other needs. At the same time, since the wheelchair front and the wheelchair seat are connected by the connecting tube 7, when the inclination of the wheelchair front changes, the height of the front end of the seat also changes accordingly, so that the user can synchronously adjust the height of the wheelchair front and the seat to meet the user's needs.

[0048] As shown in Figure 10, in a further solution of the above embodiment, the hook frame 2 is provided with a plurality of first assembly holes 203, and the head tube 6 is provided with a plurality of second assembly holes 601 arranged in the vertical direction. The hook frame 2 and the head tube 6 are detachably connected together by connecting components passing through the first assembly holes 203 and the second assembly holes 601. Optionally, the connecting components passing through the first assembly holes 203 and the second assembly holes 601 can be screws, bolts or other parts. Specifically,

[0049] Since the head tube 6 is a vertically arranged straight tube structure, and the second assembly hole 601 is arranged along the vertical direction of the head tube 6, by adjusting the different positions of the hook frame 2 in the vertical direction, so that the first assembly hole 203 corresponds to the second assembly hole 601 of different heights, the height of the head tube 6 can be adjusted, and then the angle between the connecting pipe 7 and the head tube 6 can be adjusted. After the height is adjusted, screws, bolts or other parts are passed through the first assembly hole 203 and the second assembly hole 601 and tightened to fix the hook frame 2 and the head tube 6.

[0050] In summary, through the structural setting of the quick connection structure 1 of the present invention, when the user needs to connect the front of the vehicle and the connecting tube 7, he can directly snap the first hook 301 onto the first rod 201, and then snap the second hook 401 onto the second rod 202. The operation is simple and convenient, and only takes a small amount of time for the user. At the same time, through the double snap connection between the first hook 301 and the first rod 201, and between the second hook 401 and the second rod 202, the load pressure of the quick connection structure 1 on the electric wheelchair can be effectively alleviated, avoiding the problem of large structural loss of the quick connection structure 1, which is easy to cause the connection part to loosen in the case of long-term use. In summary, the quick connection structure 1 of the present invention can take into account the user's needs for assembly and disassembly convenience and connection stability.

[0051] Of course, the above are preferred embodiments of the present invention. It should be noted that, for those skilled in the art, several improvements and modifications can be made without departing from the basic principles of the present invention, and these improvements and modifications are also considered to be within the protection scope of the present invention.

Claims

1. A quick connection structure, characterized in that: include: A hook frame, the hook frame comprising a first rod body and a second rod body; A hook member, the hook member comprising a first hook and a receiving groove, the first hook being used to buckle the first rod body, and the receiving groove being used to abut against the second rod body; A locking hook, wherein the locking hook comprises a second hook, the locking hook and the hook member are rotatably connected together, and the second hook is used to buckle the second rod; The hook member and the locking hook claw are rotatably connected together via an eccentric shaft.

2. The quick connection structure according to claim 1, characterized in that: The eccentric shaft includes a main body and an eccentric portion, and the axis of the main body and the axis of the eccentric portion are not arranged on the same straight line.

3. The quick connection structure according to claim 2, characterized in that: The hook member further comprises a mounting through hole, the locking hook claw comprises a connecting hole, the main body is rotatably disposed in the mounting through hole, and the eccentric portion is fixedly disposed in the connecting hole.

4. The quick connection structure according to claim 3, characterized in that: The locking hook further comprises an adjusting portion, wherein the adjusting portion and the second hook are respectively arranged on both sides of the connecting hole, and the adjusting portion is used to control the rotational movement of the locking hook, and further control the rotational movement of the second hook.

5. An electric wheelchair head, characterized in that: The invention comprises the quick connection structure according to any one of claims 1 to 4.

6. The electric wheelchair head according to claim 5, characterized in that: It also includes a connecting pipe, and the hook member also includes a connecting portion. One end of the connecting pipe facing the quick connecting structure is connected to the connecting portion in an adjustable angle.

7. The electric wheelchair head according to claim 6, characterized in that: A limiting protrusion is provided at one end of the connecting pipe facing the quick connecting structure, and a limiting groove is provided at the connecting portion. The limiting protrusion is used to cooperate with the limiting groove so that the connecting pipe and the connecting portion are kept relatively fixed.

8. The electric wheelchair head according to claim 6, characterized in that: A limiting groove is provided at one end of the connecting pipe facing the quick connecting structure, and a limiting protrusion is provided at the connecting portion. The limiting groove is used to cooperate with the limiting protrusion so that the connecting pipe and the connecting portion are kept relatively fixed.

9. The electric wheelchair head according to claim 5, characterized in that: It also includes a head pipe, and the hook rack is detachably arranged on the head pipe.

10. The electric wheelchair head according to claim 9, characterized in that: The hook frame is provided with a plurality of first assembly holes, the head tube is provided with a plurality of second assembly holes arranged in a vertical direction, and the hook frame and the head tube are detachably connected together by connecting components passing through the first assembly holes and the second assembly holes.

Citation Information

Patent Citations

  • Quick connecting structure and electric wheelchair head thereof

    CN213851515U