Limiting device

By designing a limiting device including tooling main body, limit sleeve and magnetic suction parts, the problem of door limit in intelligent high-end automobile coating workshops is solved, effective limiting of doors and uncontrolled switches are realized, and the quality and safety of the coating process are improved.

CN222909735UActive Publication Date: 2025-05-27ZHEJIANG LEAPMOTOR TECH CO LTD
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Patent Information

Application Number
CN202421473207.6
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-06-25
Publication Date
2025-05-27
Estimated Expiration
2034-06-25

AI Technical Summary

Technical Problem

In intelligent high-end automotive coating workshops, the doors of robots need to be limited to prevent uncontrolled switches, avoid touching and bumping with the vehicle body, resulting in quality problems.

Method used

A limiting device is designed, including a tooling body, a limiting sleeve and a magnetic suction piece. The magnetic suction piece is embedded in the accommodating groove of the limit sleeve to absorb the door, so that the open end of the limit sleeve contacts the door, realizing door limit and anti-opening. The magnetic suction parts and doors are spaced to reduce damage and improve service life.

Benefits of technology

It realizes effective limits of the door and prevents uncontrolled switches, avoids touching the door and the body, improves the quality and safety of the coating process, and extends the service life of the magnetic suction parts.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the field of vehicle coating technology engineering, and particularly discloses a limiting device which comprises a tool body, a limiting sleeve and a magnetic attraction part, the tool body is used for being fixedly connected with a vehicle body of a vehicle, and the tool body extends in the first direction. The limiting sleeve is connected with the tool body, the limiting sleeve extends in the second direction perpendicular to the first direction, a containing groove extending in the second direction is formed in the limiting sleeve, and the open end of the containing groove deviates from the tool body. The magnetic attraction part is arranged in the containing groove, the size of the magnetic attraction part in the second direction is smaller than that of the containing groove in the second direction, and the magnetic attraction part is used for attracting a vehicle door of the vehicle so that the opening end of the limiting sleeve can make contact with the vehicle door of the vehicle, and therefore the requirements for vehicle door limiting and opening and closing prevention are met. And the magnetic attraction piece and the vehicle door of the vehicle are spaced, so that the effects of protecting the magnetic attraction piece and reducing damage to the magnetic attraction piece due to external force can be achieved, and the service life of the magnetic attraction piece is prolonged.
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Description

Technical Field

[0001] The utility model relates to the technical field of vehicle painting technology engineering, and particularly relates to a limiting device. Background Art

[0002] At present, the process in the automobile painting workshop is an intelligent high-end workshop. The characteristics of this process are automatic gluing, automatic painting, and all the gluing and painting operations on the inner and outer surfaces of the vehicle body are carried out by robots.

[0003] In order to reduce dust on the paint surface, the opening and closing of the doors for inner surface gluing and painting are also all carried out by robots. Therefore, it is necessary to develop a door fixture suitable for robot door opening and closing for on-site gluing and painting production to prevent the uncontrolled opening and closing of the door during the gluing and painting process, and to avoid quality problems caused by the inability to ensure the distance between the door and the vehicle body, resulting in contact and damage between the door and the vehicle body. Summary of the Utility Model

[0004] This application provides a limiting device. The limiting device embeds a magnetic part into a limiting sleeve. The limiting sleeve adsorbs and contacts the vehicle door, and the tooling main body connected to the limiting sleeve is fixed on the vehicle body, thereby realizing the requirements of door limiting and anti-opening / closing. Moreover, the magnetic part is spaced from the vehicle door, which can protect the magnetic part, reduce the damage caused by external forces to the magnetic part, and improve the service life of the magnetic part.

[0005] To solve the above technical problems, a technical solution adopted in this application is: to provide a limiting device, which includes a tooling main body, a limiting sleeve and a magnetic part; the tooling main body is used for fixedly connecting with the vehicle body main body, and the tooling main body extends along a first direction; the limiting sleeve is connected to the tooling main body, the limiting sleeve extends along a second direction perpendicular to the first direction, the limiting sleeve is formed with a receiving groove extending along the second direction, and the opening end of the receiving groove faces away from the tooling main body; the magnetic part is arranged in the receiving groove, the size of the magnetic part in the second direction is smaller than the size of the receiving groove in the second direction, and the magnetic part is used for adsorbing the vehicle door so that the opening end of the limiting sleeve contacts the vehicle door, and the magnetic part is spaced from the vehicle door.

[0006] Wherein, the limiting sleeve is detachably connected to the tooling main body.

[0007] Wherein, the limiting sleeve is provided with a first locking hole, the tooling main body is provided with a second locking hole, and the limiting device includes a first locking part, and the first locking part passes through the first locking hole and the second locking hole to detachably connect the limiting sleeve to the tooling main body.

[0008] Wherein, the first locking hole penetrates through the bottom wall of the limiting sleeve to communicate with the receiving groove, the radial dimension of the receiving groove is larger than the radial dimension of the first locking hole, so as to form a step at the connection of the receiving groove and the first locking hole, and the magnetic part is magnetically adsorbed on the step.

[0009] Wherein, a clamping groove is formed at one end of the tooling main body far away from the limiting sleeve, and the opening of the clamping groove faces away from the limiting sleeve in the first direction. The clamping groove is used for clamping and fixing with the vehicle body main body.

[0010] Wherein, one end of the tooling main body far away from the limiting sleeve includes two clamping parts, and the two clamping parts are arranged at intervals in the second direction to form a clamping groove.

[0011] Wherein, a third locking hole is provided on one of the two clamping parts far away from the limiting sleeve. The limiting device includes a second locking part. The second locking part is located on the side of the tooling main body far away from the limiting sleeve. The second locking part passes through the clamping groove through the third locking hole to be fixed with the vehicle body main body.

[0012] Wherein, the second locking part includes a main body rod and a rotating rod. The main body rod is used to extend into the third locking hole, and the rotating rod is connected to one end of the main body rod far away from the third locking hole.

[0013] Wherein, the second locking part, the tooling main body and the limiting sleeve are arranged in sequence from inside to outside along the vehicle body width direction.

[0014] Wherein, a protective cap is further provided on the main body rod, and the protective cap is arranged on the side of the tooling main body far away from the limiting sleeve.

[0015] The beneficial effect of this application is: Different from the prior art, the limiting device provided by this application includes a tooling main body, a limiting sleeve and a magnetic attraction part. The tooling main body is used for fixedly connecting with the vehicle body main body, and the tooling main body extends along the first direction. The limiting sleeve is connected with the tooling main body, and the limiting sleeve extends along a second direction perpendicular to the first direction. The limiting sleeve is formed with a receiving groove extending along the second direction, and the open end of the receiving groove faces away from the tooling main body. The magnetic attraction part is arranged in the receiving groove, and the size of the magnetic attraction part in the second direction is smaller than the size of the receiving groove in the second direction. The magnetic attraction part is used for adsorbing the vehicle door, so that the open end of the limiting sleeve contacts the vehicle door, thereby realizing the requirements of door limiting and preventing opening and closing. And the magnetic attraction part is spaced from the vehicle door, which can protect the magnetic attraction part and reduce the damage of the magnetic attraction part caused by external force, and improve the service life of the magnetic attraction part. Description of the Drawings

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the following drawings are only some embodiments of the present application. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained according to these drawings, where:

[0017] Figure 1 It is a schematic structural diagram of an embodiment of the limiting device of the present application;

[0018] Figure 2 is a structural schematic diagram of another embodiment of the limiting device of the present application;

[0019] Figure 3 It is a structural schematic diagram of another embodiment of the limiting device of the present application;

[0020] Figure 4 It is a structural schematic diagram of a tooling body of an embodiment of a position limiting device of the present application;

[0021] Figure 5 It is a structural schematic diagram of a limiting sleeve of an embodiment of a limiting device of the present application;

[0022] Figure 6 It is a schematic structural diagram of a limiting sleeve of another embodiment of the limiting device of the present application. DETAILED DESCRIPTION

[0023] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are described in detail below in conjunction with the accompanying drawings. It is to be understood that the specific embodiments described herein are only used to explain the present application, rather than to limit the present application. It should also be noted that, for ease of description, only some structures related to the present application are shown in the accompanying drawings, rather than all structures. 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.

[0024] Reference to "embodiments" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0025] In the description of this application, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, "plurality" means two or more, unless otherwise clearly and specifically defined.

[0026] In the description of the present application, it should be noted that unless otherwise clearly specified and limited, the terms "installation", "connection", and "coupling" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or a connection that allows mutual communication; it can be a direct connection or an indirect connection through an intermediate medium, and it can be the internal communication of two components or the interaction relationship between two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific circumstances.

[0027] Please refer to Figure 1-6 , the present application provides a limiting device 100. The limiting device 100 includes a tooling main body 1, a limiting sleeve 2, and a magnetic attraction member 3. The tooling main body 1 is used for fixedly connecting with the body main body of the vehicle, and the tooling main body 1 extends along a first direction D1. The limiting sleeve 2 is connected to the tooling main body 1, and the limiting sleeve 2 extends along a second direction D2 perpendicular to the first direction D1. The limiting sleeve 2 is formed with a receiving groove 21 extending along the second direction D2, and the open end of the receiving groove 21 faces away from the tooling main body 1. The magnetic attraction member 3 is disposed in the receiving groove 21. The size of the magnetic attraction member 3 in the second direction D2 is smaller than the size of the receiving groove 21 in the second direction D2. The magnetic attraction member 3 is used for attracting the vehicle door, so that the open end of the limiting sleeve 2 contacts the vehicle door, thereby realizing the requirements of door limiting and preventing opening and closing. And the magnetic attraction member 3 is spaced from the vehicle door, which can protect the magnetic attraction member 3 and reduce the damage of the magnetic attraction member 3 caused by external forces, and improve the service life of the magnetic attraction member 3. It should be noted that the open end of the receiving groove 21 is the open end of the limiting sleeve 2, and there is only one opening of the receiving groove 21 on the side of the limiting sleeve 2 facing away from the tooling main body 1.

[0028] Specifically, the first direction D1 is the connection direction between the tooling main body 1 and the vehicle body main body, and the second direction D2 is the width direction of the vehicle body main body. The first direction D1 and the second direction D2 are perpendicular to each other. During use, first fixedly connect the tooling main body 1 to the door frame on the side wall of the vehicle body main body, then the limiting sleeve 2 is automatically located at the door position. Then close the door so that the inner panel of the door contacts and fits with the limiting sleeve 2, and use the magnetism of the magnetic part 3 to fix the door, so that there is a certain distance between the door and the vehicle body. This distance is the overall length of the limiting sleeve 2 along the second direction D2, thus realizing the requirements of door limiting and preventing opening and closing, avoiding collisions between the door and the vehicle body main body, and ensuring the appearance quality of the whole vehicle. The limiting device 100 of the embodiment of the present application is reliable and stable, can ensure effective limiting of the door, can prevent the door from being uncontrollably opened and closed during the glue coating and painting processes, and further avoid quality problems caused by the door touching and being damaged by the vehicle body, so as to meet the functional requirements of the robot for automatically opening and closing the door, and meet the requirements of the door being firmly magnetically attracted and not loosening during the vehicle body conveying process. Further, the magnetic part 3 is installed in the accommodating groove 21 of the limiting sleeve 2, and the size of the magnetic part 3 in the second direction D2 is smaller than the size of the accommodating groove 21 in the second direction D2. By directly contacting the inner panel of the door through the limiting sleeve 2, the magnetic part 3 is spaced from the door by a certain distance, thereby protecting the magnetic part 3, reducing damage to the magnetic part 3 caused by external forces, increasing the service life of the magnetic part 3, and further improving the reliability and stability of the limiting device 100.

[0029] In a specific embodiment, the limiting sleeve 2 can be machined from 45# steel and can be processed by a lathe using a round steel with a diameter of 30 mm. The magnetic part 3 can be a custom-made strong magnet resistant to 350° high temperature, in a cylindrical shape, with a diameter of 26 mm and a thickness of 10 mm to ensure that the magnetic part 3 will not fail due to high temperature during the coating and painting processes, improving reliability. The accommodating groove 21 can be custom-processed according to the size of the magnetic part 3 so that the magnetic part 3 can be embedded in the accommodating groove 21 to ensure the tolerance fit of the embedded assembly of the magnetic part 3. For the magnetic part 3 with a diameter of 26 mm and a thickness of 10 mm, the diameter and depth of the accommodating groove 21 are taken within the error range, such as it can be designed to have a diameter of 26 mm and a depth of 12 mm, etc. Since the limiting sleeve 2 is processed from round steel, the magnetic part 3 can be adsorbed inside the accommodating groove 21. During use, the magnetic part 3 adsorbs the limiting sleeve 2 on one side and adsorbs the door by magnetic force on the other side, so that the door contacts the open end of the limiting sleeve 2, realizing the connection and fixation of the limiting sleeve 2 to the door.

[0030] Further, the overall length of the limiting sleeve 2 along the second direction D2 can be lengthened or shortened according to the defined opening angle of the door to ensure meeting the process requirements.

[0031] In an embodiment of the present application, the limit sleeve 2 is detachably connected to the tooling main body 1, which is convenient for disassembly and maintenance, and effectively improves the use efficiency and utilization rate of the limiting device 100.

[0032] Specifically, the limit sleeve 2 can be detached from the tooling main body 1 to facilitate replacement in case of damage during the later use of the magnetic component 3.

[0033] In an embodiment of the present application, the limit sleeve 2 is provided with a first locking hole 22, the tooling main body 1 is provided with a second locking hole 11, and the limiting device 100 includes a first locking member 4. The first locking member 4 passes through the first locking hole 22 and the second locking hole 11 to detachably connect the limit sleeve 2 to the tooling main body 1.

[0034] Specifically, the first locking hole 22 and the second locking member 6 can be threaded holes with threads, and the first locking member 4 can include a fastening bolt. By passing the fastening bolt through the second locking hole 11 and the first locking hole 22 in sequence and screwing it into the first locking hole 22, the detachable connection between the limit sleeve 2 and the tooling main body 1 is realized, which is convenient for disassembly and maintenance, and effectively improves the use efficiency and utilization rate of the limiting device 100. In another embodiment, the second locking hole 11 can also include a through hole without threads to reduce the processing procedures of the tooling main body 1 and improve production efficiency.

[0035] In a specific embodiment, the first locking hole 22 and the second locking hole 11 can include M10 threaded through holes, and the first locking member 4 can adopt a standard bolt of M10*20. In another specific embodiment, the first locking hole 22 and the second locking hole 11 can also include through holes of other models and sizes, and the first locking member 4 can be configured according to the models and dimensions of the first locking hole 22 and the second locking hole 11.

[0036] Furthermore, the position of the second locking hole 11 on the tooling main body 1 can be appropriately adjusted along the first direction D1 to change the suction position of the limit sleeve 2 and ensure meeting the use requirements.

[0037] In an embodiment of the present application, the first locking hole 22 penetrates through the bottom wall of the limit sleeve 2 to communicate with the accommodating groove 21. The radial dimension of the accommodating groove 21 is larger than the radial dimension of the first locking hole 22 to form a step at the connection between the accommodating groove 21 and the first locking hole 22, and the magnetic component 3 is magnetically attracted to the step.

[0038] Specifically, the internal structure of the limit sleeve 2 includes a receiving groove 21 and a first locking hole 22, and the remaining space is filled with solid material. Since the size of the magnetic part 3 in the embodiment of the present application is larger than the size of the first locking part 4, the radial dimension of the receiving groove 21 is larger than the radial dimension of the first locking hole 22, so as to form a step at the connection between the receiving groove 21 and the first locking hole 22, thereby facilitating the magnetic part 3 to be magnetically attracted to the step. The magnetic part 3 is embedded in the receiving groove 21 and magnetically attracted to the step, so that the magnetic force in the circumferential direction of the magnetic part 3 and the direction towards the step cancels each other out, thereby enhancing the magnetic force of the magnetic part 3 in the direction away from the step, so as to improve the adsorption force on the vehicle door and improve the reliability and stability. In another embodiment, the first locking hole 22 may not communicate with the receiving groove 21 to avoid damage to the magnetic part 3 caused by the first locking part 4.

[0039] In one embodiment of the present application, a clamping groove 5 is formed at one end of the tooling main body 1 away from the limit sleeve 2, and the opening of the clamping groove 5 faces away from the limit sleeve 2 in the first direction D1, and the clamping groove 5 is used for clamping and fixing with the body main body of the vehicle.

[0040] Specifically, the tooling main body 1 can be integrally machined from a steel plate, and the clamping groove 5 can also be formed by machining and cutting. The clamping groove 5 can be clamped and fixed with the door frame stop portion of the body side wall assembly, and the specific position can be adjusted according to the actual requirements of the inner panel of the vehicle door to ensure that the contact point of the magnetic adsorption portion of the inner panel of the vehicle door is an area that can be covered by the door trim. In a specific embodiment, the size of the steel plate can include 30mm * 16mm * 80mm, and the width of the opening of the clamping groove 5 can include 5-6mm to meet the fixing requirements. In another specific embodiment, the width of the tooling main body 1 and the clamping groove 5 can also be processed and adjusted according to the vehicle model and the thickness of the door frame stop portion.

[0041] In one embodiment of the present application, one end of the tooling main body 1 away from the limit sleeve 2 includes two clamping portions 12, and the two clamping portions 12 are spaced apart in the second direction D2 to form the clamping groove 5.

[0042] Specifically, the two clamping portions 12 are spaced apart in the second direction D2 to form the clamping groove 5, and the stop portion of the body main body is clamped in the clamping groove 5, so that the connection and fixation between the tooling main body 1 and the body main body can be realized. The two clamping portions 12 are both formed by machining and cutting the tooling main body 1 as a whole, which can improve the reliability and stability of the connection between the tooling main body 1 and the body main body. In another embodiment, the two clamping portions 12 can also be detachably installed on the tooling main body 1 to facilitate the replacement of the clamping groove 5 adapted to the body main body and improve the utilization rate, but the connection strength will be reduced.

[0043] In an embodiment of the present application, a third locking hole 13 is provided in one of the two clamping portions 12 that is far from the limiting sleeve 2. The limiting device 100 includes a second locking member 6. The second locking member 6 is located on the side of the tooling main body 1 that is far from the limiting sleeve 2. The second locking member 6 passes through the third locking hole 13 and is disposed in the clamping groove 5 to be fixed to the body main body of the vehicle.

[0044] Specifically, the body main body of the vehicle is engaged in the clamping groove 5. By passing the second locking member 6 through the third locking hole 13 and abutting against the body main body, the reliability and stability of the connection are improved. The third locking hole 13 may include a threaded through hole with threads. The second locking member 6 may include a bolt with threads. By screwing the bolt and passing it through the third locking hole 13, the third locking member can be fixed, further improving the stability of the connection. Further, since only one of the two clamping portions 12 that is far from the limiting sleeve 2 is provided with the third locking hole 13, the second locking member 6 can be tightened and fixed from the inside of the vehicle body. On the one hand, the influence on the surface quality of the vehicle body can be reduced; on the other hand, the interference with the equipment, railings, etc. in the logistics channel can be reduced, and the influence on the vehicle body transportation can be reduced.

[0045] In an embodiment of the present application, the second locking member 6 includes a main body rod 61 and a rotating rod 62. The main body rod 61 is used to extend into the third locking hole 13, and the rotating rod 62 is connected to one end of the main body rod 61 that is far from the third locking hole 13.

[0046] Specifically, the second locking member 6 may be formed by welding the main body rod 61 and the rotating rod 62 together, so as to drive the main body rod 61 to rotate by rotating the rotating rod 62. The structure is simple, and the disassembly and assembly are convenient and fast. The rotating rod 62 is used for hand-held operation when rotating the main body rod 61. Since it is not convenient to use a tightening tool inside the vehicle body, adding the rotating rod 62 facilitates hand operation and makes the rotation of the main body rod 61 more convenient and fast. In a specific embodiment, the third locking hole 13 may include an M10 threaded through hole, and the second locking member 6 may adopt an M10*50mm bolt and a round steel with a diameter of 8mm and a length of 60mm welded into a T-shaped structure screw rod. Just tightening the T-shaped screw rod can meet the installation requirements. The installation is simple and convenient, and it can well meet the production requirements of 40-60 JPH (Jobs Per Hour).

[0047] In another embodiment, the rotating rod 62 may also include other shaped structures, such as a circular hand ring operating rod, etc., so as to facilitate hand operation and make the rotation of the main body rod 61 more convenient and fast.

[0048] In an embodiment of the present application, a protective cap 7 is further provided on the main body rod 61. The protective cap 7 is disposed on the side of the tooling main body 1 that is far from the limiting sleeve 2.

[0049] Specifically, by setting the protective cap 7, the threaded connection area of the second locking member 6 can be increased, and the second locking member 6 can be limited left and right, making the tightening process of the second locking member 6 more stable and reliable.

[0050] In an embodiment of the present application, the second locking member 6, the tooling main body 1, and the limiting sleeve 2 are arranged in sequence from inside to outside along the vehicle body width direction.

[0051] Specifically, since the second locking member 6, the tooling main body 1, and the limiting sleeve 2 are arranged in sequence from inside to outside along the vehicle body width direction, there will be a certain distance between the door and the vehicle body main body, avoiding the collision between the door and the vehicle body main body, and ensuring the appearance quality of the whole vehicle.

[0052] During use, the limiting device 100 of the present application is mainly assembled at the door stop of the body side assembly. The specific position can be adjusted according to the actual requirements of the inner door panel to ensure that the contact point of the magnetic attraction part of the inner door panel is the area that can be covered by the door trim. Further, the length dimension of the limiting sleeve 2 can be adjusted according to the opening angle of the door required by the process. On the premise that there is no interference between the inner door panel and the body side area, the opening and closing surface of the door can be made smaller, so as to better ensure the spraying consistency between the door and the body side or fender area, and effectively improve or avoid quality problems affecting the paint appearance such as thick edges, orange peel, and sagging at the door edge. Moreover, the contact parts of the limiting device 100 of the present application with the vehicle body are all located inside the vehicle body and are non-appearance surfaces, which do not affect the paint appearance of the vehicle body.

[0053] The limiting device 100 of the present application can be suitable for the robot to open and close the door quickly and conveniently. Installed on the vehicle body main body, the door can be automatically sucked after being closed, thus avoiding accidents caused by abnormal opening of the door during glue application, painting, and line transfer. In addition, the opening angle of the door can be adjusted through the limiting sleeve 2 to be appropriate, so as to meet the smoothness of the surface difference between the front and rear doors and between the rear door and the side panel during painting, and the paint film thickness is uniform. Moreover, the limiting device 100 of the present application has a simple structure and simple installation. The installation and disassembly time can meet the painting production rhythm of the workshop, making the subsequent maintenance of the damaged magnet more rapid.

[0054] Since the limiting device 100 of the present application can adjust the width of the clamping groove 5, the limiting device 100 can be used on all vehicle models produced in the factory, with high versatility.

[0055] It should be noted that terms such as "horizontal" and "vertical" do not require the components to be absolutely horizontal or vertical, but can be slightly inclined; terms such as "parallel" and "perpendicular" do not mean that the fittings are absolutely parallel or perpendicular to each other, but can have a certain angular deviation. For example, "horizontal" only means that its direction is more horizontal relative to "vertical", and does not mean that the structure must be completely horizontal, but can be slightly inclined. In addition, the orientation or positional relationship indicated by terms such as "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. is based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the products of this application are usually placed during use. It is only for the convenience of describing the embodiments of this application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to this application.

[0056] It can be understood that the meaning of "a plurality of" in this article is at least two, such as two, three, etc., unless there are specific restrictive explanations. In addition, the terms "comprising" and "having" and any variations thereof are intended to cover non-exclusive inclusion. For example, a process, method, system, product or device that includes a series of steps or units is not limited to the listed steps or units, but optionally further includes steps or units not listed, or optionally further includes other steps or units inherent to these processes, methods, products or devices. The term "and / or" is merely a description of the association relationship of associated objects, indicating that three relationships can exist. For example, A and / or B can represent: A exists alone, A and B exist simultaneously, and B exists alone. In addition, the character " / " in this article generally represents an "or" relationship between the associated objects before and after.

[0057] The above is only the implementation mode of this application, and does not limit the patent scope of this application accordingly. Any equivalent structure or equivalent process transformation made by using the content of the specification and drawings of this application, or directly or indirectly applied in other related technical fields, shall be similarly included in the patent protection scope of this application.

Claims

1. A limiting device, characterized in that: The limiting device comprises: A tool body (1) is used for being fixedly connected to a vehicle body, and the tool body (1) is extended along a first direction; A limiting sleeve (2) connected to the tool body (1), the limiting sleeve (2) extending along a second direction perpendicular to the first direction, the limiting sleeve (2) forming a receiving groove (21) extending along the second direction, the opening end of the receiving groove (21) facing away from the tool body (1); A magnetic member (3) is arranged in the accommodating groove (21), the size of the magnetic member (3) in the second direction is smaller than the size of the accommodating groove (21) in the second direction, and the magnetic member (3) is used to absorb the door of the vehicle so that the open end of the limiting sleeve (2) contacts the door of the vehicle, and the magnetic member (3) is spaced from the door of the vehicle; The limiting sleeve (2) is provided with a first locking hole (22), and the first locking hole (22) passes through the bottom wall of the limiting sleeve (2) to communicate with the accommodating groove (21). The radial dimension of the accommodating groove (21) is larger than the radial dimension of the first locking hole (22), so as to form a step at the connection between the accommodating groove (21) and the first locking hole (22), and the magnetic attraction member (3) is magnetically attracted to the step.

2. The limiting device according to claim 1, characterized in that: The limiting sleeve (2) is detachably connected to the tool body (1).

3. The limiting device according to claim 2, characterized in that: The tool body (1) is provided with a second locking hole (11), and the limiting device comprises a first locking member (4), and the first locking member (4) is inserted into the first locking hole (22) and the second locking hole (11) so that the limiting sleeve (2) and the tool body (1) are detachably connected.

4. The limiting device according to claim 1, characterized in that: A clamping groove (5) is formed at one end of the tool body (1) away from the limiting sleeve (2), the opening of the clamping groove (5) is oriented toward the side away from the limiting sleeve (2) in the first direction, and the clamping groove (5) is used for clamping and fixing with the body of the vehicle.

5. The limiting device according to claim 4, characterized in that: One end of the tool body (1) away from the limiting sleeve (2) comprises two clamping parts (12), and the two clamping parts (12) are arranged at intervals in the second direction to form the clamping groove (5).

6. The limiting device according to claim 5, characterized in that: One of the two clamping parts (12) which is away from the limiting sleeve (2) is provided with a third locking hole (13), and the limiting device includes a second locking member (6), and the second locking member (6) is located on the side of the tooling body (1) away from the limiting sleeve (2), and the second locking member (6) is inserted into the clamping groove (5) through the third locking hole (13) to be fixed to the body of the vehicle.

7. The limiting device according to claim 6, characterized in that: The second locking member (6) comprises a main rod (61) and a rotating rod (62), wherein the main rod (61) is used to extend into the third locking hole (13), and the rotating rod (62) is connected to an end of the main rod (61) away from the third locking hole (13).

8. The limiting device according to claim 6, characterized in that: The second locking member (6), the tooling body (1) and the limiting sleeve (2) are arranged in sequence from inside to outside along the width direction of the vehicle body.

9. The limiting device according to claim 7, characterized in that: The main body rod (61) is also provided with a protective cap (7), and the protective cap (7) is arranged on a side of the tool body (1) away from the limiting sleeve (2).