Automatic locking automobile joint

By using a magnetic connection and a sliding interlocking mechanism, the design solves the problems of inconvenient docking and unstable connection of traditional automotive quick-connect connectors, achieving convenient and stable interface connection and improving efficiency and safety.

CN224079779UActive Publication Date: 2026-04-03NINGBO XINDI METAL PROD CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-05-27
Publication Date
2026-04-03

AI Technical Summary

Technical Problem

Traditional automotive quick-connectors are difficult to align during connection, inconvenient to use, lack connection stability, pose a risk of falling off, and affect efficiency and safety.

Method used

It adopts a magnetic connection and interlocking sliding mechanism design, which uses the mutual attraction of magnets to achieve automatic docking, and achieves stable connection through the interlocking of concave and convex interlocking plates and concave and convex conical rods.

Benefits of technology

It improves the convenience and stability of connector assembly, reduces the risk of falling, and ensures safety and efficiency during use.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses an automatic locking automobile joint, which relates to the field of automobile joints and comprises a first butt joint and a second butt joint, a second corresponding magnet is mounted on the outer surface of the first butt joint, and a sliding elastic mechanism for fixing a butt joint sliding plate is mounted in the second corresponding magnet. The sliding elastic mechanism comprises a first limiting butt-joint frame, and the first limiting butt-joint frame is fixedly installed on the outer surface of the second butt-joint head. According to the automatic locking automobile connector, when the interface alignment work needs to be carried out, a first limiting butt joint frame is directly aligned with the fixed position of a butt joint sliding plate, horizontal corresponding sliding is carried out, and in the process, a second corresponding magnet can synchronously enter the interior of a first corresponding magnet; the second corresponding magnet and the first corresponding magnet are fixed due to magnetism, so that the operation is more convenient when the joint is in butt joint, the use efficiency is improved, and positioning butt joint can be automatically performed due to the magnetic design.
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Description

Technical Field

[0001] This utility model relates to the field of automotive connector technology, specifically an automatic locking automotive connector. Background Technology

[0002] Automotive quick-connect couplings are connectors used in automobile manufacturing and repair, primarily for transmitting liquid media such as fuel, lubricating oil, and brake fluid. A basic description of automotive quick-connect couplings is that they consist of an O-ring and an engineering-grade plastic housing. The housing employs a double-seal radial sealing structure. The inner O-ring is made of modified rubber, specifically designed to address the various physical, chemical, and performance characteristics of the fluid, providing protection against aging, corrosion, and swelling. The outer O-ring is separated by an intermediate isolation ring, allowing each sealing ring independent movement space.

[0003] Traditional automotive quick-connect couplings use standard snap-fit ​​assembly, resulting in a relatively large minimum installation size, which is unsuitable for assembly in confined spaces. Furthermore, during assembly, traditional snap-fit ​​quick-connect couplings require manual locking of the snap-fit ​​after inserting the male connector. This can easily lead to forgetting to lock the snap-fit ​​or improper locking, increasing the risk of pipe leaks.

[0004] To overcome the above-mentioned defects, the prior art (Chinese patent publication number: CN222577614U, application date: 2025-03-07) discloses an automotive quick-connect connector with an automatic locking function, including a quick-connect connector housing. The upper end of the quick-connect connector housing has a first inner sealing ring, an isolation ring, and a second inner sealing ring arranged sequentially from bottom to top. A base is fitted onto the upper end of the quick-connect connector housing, a locking buckle is inserted into the side of the base, and a male connector is inserted into the top of the base. This relates to the field of automotive technology. After the male connector is inserted, the locking buckle can automatically enter the locking position without manual pushing. The optimized product structure makes it more compact, greatly reducing the minimum assembly space required for the quick-connect connector and meeting the needs of applications in confined spaces.

[0005] While the above design can solve the aforementioned problems, the two sets of connectors are not easy to align during docking, making the process inconvenient and hindering rapid docking, thus reducing efficiency. Furthermore, the connection stability of the interface is insufficient after docking, posing a risk of falling off when there is surrounding movement or slight vehicle movement, resulting in insufficient safety and risks during use. Utility Model Content

[0006] The purpose of this utility model is to provide an automatic locking automotive connector to solve the problems mentioned in the background art, such as the inconvenience of aligning the two sets of connectors during docking, the lack of convenience in use, the inability to quickly dock, the reduced efficiency, and the insufficient connection stability of the interface after docking, which may lead to the risk of falling off when there is surrounding movement or slight vehicle movement, resulting in insufficient safety during use and posing risks to the user.

[0007] To achieve the above objectives, this utility model provides the following technical solution: an automatically locking automotive connector, comprising a first connector and a second connector. The outer surface of the first connector is equipped with a second corresponding magnet, and the interior of the second corresponding magnet is equipped with a sliding elastic mechanism for fixing a docking sliding plate. The sliding elastic mechanism includes a first limiting docking frame, which is fixedly installed on the outer surface of the second connector. The installation position of the first limiting docking frame corresponds to the movement position of the docking sliding plate, and the docking sliding plate is fixedly installed on the inner surface of the first connector. The interior of the second connector is equipped with an integrated support plate, and the outer surface of the integrated support plate is equipped with an engaging sliding mechanism for fixing a concave-convex conical rod.

[0008] Furthermore, the fitting sliding mechanism includes a nested rotating seat, which is fixedly installed on the inner surface of the second pair of joints. A sliding inner groove is provided at the center of the nested rotating seat, and an extension sliding rod is installed inside the sliding inner groove.

[0009] Furthermore, the outer surface of the nested rotating seat is equipped with a concave-convex interlocking plate, and the concave-convex interlocking plate is rotatably mounted on the outer surface of the nested rotating seat. The front end of the extension sliding rod abuts against the interior of the concave-convex interlocking plate and expands it. An integrated support plate is installed inside the first pair of joints. The concave-convex conical rod is fixedly mounted on the outer surface of the integrated support plate, and the movement trajectory of the concave-convex conical rod corresponds to the interior of the concave-convex interlocking plate.

[0010] Furthermore, a first corresponding magnet is installed on the inner surface of the second pair of connectors, and a second corresponding magnet is installed on the outer surface of the first pair of connectors. The movement trajectory of the second corresponding magnet passes through the interior of the first corresponding magnet, and an antimagnetic enclosure is installed on the outer surface of the second corresponding magnet.

[0011] Furthermore, a traction fixing rod is installed on the upper surface of the antimagnetic enclosure frame, and a second limiting sliding frame is installed on the outer surface of the first pair of joints. The two ends of the traction fixing rod are slidably installed inside the second limiting sliding frame, and a compression pushing spring is installed inside the second limiting sliding frame.

[0012] Furthermore, the outer surface of the traction fixing rod abuts against the compression pushing spring, and sliding abutment rods are installed on both sides of the second limiting sliding frame. The outer surface of the sliding abutment rod abuts against the traction fixing rod, and the antimagnetic enclosure frame and the traction fixing rod are designed as an integral unit.

[0013] Furthermore, the ends of the interlocking plates are rotatably mounted around the nested rotating seat, and the interlocking plates are always plastically squeezed inward. Moreover, the large diameter of the front end of the expansion sliding rod will cause the inner diameter of the interlocking plates to expand due to contact.

[0014] Compared with the prior art, the beneficial effects of this utility model are: when the automatic locking car connector needs to be aligned, the fixed positions of the first limiting docking bracket and the docking sliding plate are directly aligned and slid horizontally. During this process, the second corresponding magnet will also enter the interior of the first corresponding magnet at the same time, so that the second corresponding magnet and the first corresponding magnet are fixed due to magnetism. This design makes the operation more convenient when the connector is docked, improves the efficiency of use, and the magnetic design will automatically perform positioning docking.

[0015] Furthermore, when a deeper fixing operation is required, push the extension sliding rod forward along the nested rotating seat so that the front end of the extension sliding rod pushes the concave and convex interlocking plate outward. At this time, the concave and convex conical rod can be inserted inward accordingly. After releasing the extension sliding rod, the concave and convex interlocking plate can complete the interlocking and fixing of the concave and convex conical rod due to its own plastic reset. This design ensures that the connector will not fall off due to surrounding movement or slight vehicle movement during use, thus ensuring safety and higher stability during use.

[0016] Furthermore, when magnetic docking is not required, the antimagnetic enclosure can be pushed forward to enclose the second corresponding magnet and complete the magnetic blocking work. Then, the sliding contact rod can be inserted inward to make it contact the traction fixing rod. Therefore, the antimagnetic enclosure can perform magnetic blocking work on the second corresponding magnet for a long time, ensuring reliable and intelligent operation. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural diagram of the first connector of this utility model;

[0018] Figure 2 This is a three-dimensional structural diagram of the second connector of this utility model;

[0019] Figure 3 This is a schematic diagram of the three-dimensional structure of the extended sliding rod of this utility model;

[0020] Figure 4 This is a three-dimensional structural diagram of the docking sliding plate of this utility model;

[0021] Figure 5 This is a three-dimensional structural diagram of the compression spring of this utility model;

[0022] Figure 6 This is a schematic diagram of the three-dimensional structure of the sliding inner groove of this utility model.

[0023] In the diagram: 1. First connector; 2. Second connector; 3. First limiting connector frame; 4. Connecting sliding plate; 5. Concave-convex conical rod; 6. First corresponding magnet; 7. Concave-convex interlocking plate; 8. Second corresponding magnet; 9. Nested rotating seat; 10. Antimagnetic enclosure frame; 11. Traction fixing rod; 12. Compression pushing spring; 13. Sliding abutment rod; 14. Extending sliding rod; 15. Sliding inner groove; 16. Second limiting sliding frame; 17. Integrated support plate. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] Example 1: Please refer to Figures 1-6 The present invention provides the following technical solution: an automatic locking car connector, including a first connector 1 and a second connector 2. The outer surface of the first connector 1 is equipped with a second corresponding magnet 8, and the interior of the second corresponding magnet 8 is equipped with a sliding elastic mechanism for fixing a docking sliding plate 4. The sliding elastic mechanism includes a first limiting docking frame 3, which is fixedly installed on the outer surface of the second connector 2. The installation position of the first limiting docking frame 3 corresponds to the movement position of the docking sliding plate 4, and the docking sliding plate 4 is fixedly installed on the inner surface of the first connector 1. The interior of the second connector 2 is equipped with an integrated support plate 17, and the outer surface of the integrated support plate 17 is equipped with an interlocking sliding mechanism for fixing a concave-convex conical rod 5.

[0026] like Figure 1 , Figure 2 , Figure 5The technical solution shown addresses the problem that the two sets of connectors are difficult to align during docking, resulting in inconvenience and reduced efficiency. It discloses the following: a first corresponding magnet 6 is installed on the inner surface of the second connector 2, and a second corresponding magnet 8 is installed on the outer surface of the first connector 1. The movement trajectory of the second corresponding magnet 8 passes through the interior of the first corresponding magnet 6. An antimagnetic enclosure 10 is installed on the outer surface of the second corresponding magnet 8. A traction fixing rod 11 is installed on the upper surface of the antimagnetic enclosure 10, and a second limiting sliding frame 16 is installed on the outer surface of the first connector 1. The two ends of the traction fixing rod 11 are slidably installed inside the second limiting sliding frame 16. A compression pushing spring 12 is installed inside the second limiting sliding frame 16. The outer surface of the traction fixing rod 11 abuts against the compression pushing spring 12. Sliding abutment rods 13 are installed on both sides of the second limiting sliding frame 16, and the outer surface of the sliding abutment rods 13 abuts against the traction fixing rod 11. The antimagnetic enclosure 10 and the traction fixing rod 11 are integrated into one piece.

[0027] When initial docking of the first connector 1 and the second connector 2 is required, the docking sliding plate 4 fixedly installed on the inner surface of the first connector 1 is aligned with the first limiting docking bracket 3 fixedly installed on the outer surface of the front end of the second connector 2. Then, the first connector 1 and the second connector 2 are moved horizontally relative to each other, allowing the first limiting docking bracket 3 and the docking sliding plate 4 to be inserted accordingly. During the gradual overlap of the first connector 1 and the second connector 2, the second corresponding magnet 8 fixedly installed on the outer surface of the front end of the first connector 1 is inserted into the interior of the first corresponding magnet 6 fixedly installed at the corresponding position on the inner surface of the second connector 2. This creates a magnetic connection between the first corresponding magnet 6 and the internal second corresponding magnet 8, ensuring the convenience of use. When it is necessary to separate the first connector 1 and the second connector 2, the pull... The fixed rod 11 is pushed forward, and the movement of the traction fixed rod 11 will synchronously push the antimagnetic enclosure 10 fixedly installed at the front end. The antimagnetic enclosure 10 will slide along the inner surface of the second corresponding magnet 8, thus blocking the magnetism of the second corresponding magnet 8 as a whole. When the traction fixed rod 11 slides, its end will move along the second limiting sliding frame 16 fixedly installed on the outer surface of the first connector 1. During the movement, the end of the traction fixed rod 11 will abut against the compression pushing spring 12 and compress it. After the traction fixed rod 11 slides to the limit position, it pushes the sliding contact rod 13 inward along the side of the second limiting sliding frame 16, so that the sliding contact rod 13 fixes and limits both ends of the traction fixed rod 11, ensuring that the first corresponding magnet 6 and the second corresponding magnet 8 will not form a magnetic connection. This design makes the equipment more convenient to use.

[0028] Example 2: Figure 6 , Figure 3 , Figure 4 The technical solution shown addresses the problem of insufficient connection stability at the interface after docking, which poses a risk of falling off due to surrounding movement or slight vehicle movement, resulting in insufficient safety during use. The solution discloses a locking sliding mechanism comprising a nested rotating seat 9, which is fixedly mounted on the inner surface of the second connector 2. A sliding inner groove 15 is formed at the center of the nested rotating seat 9, and an extension sliding rod 14 is installed inside the sliding inner groove 15. A concave-convex interlocking plate 7 is mounted on the outer surface of the nested rotating seat 9, and the concave-convex interlocking plate 7 rotates... Installed on the outer surface of the nested rotating seat 9, the front end of the expansion sliding rod 14 abuts against the interior of the concave-convex bite plate 7 and expands it. An integral support plate 17 is installed inside the first pair of joints 1. The concave-convex tapered rod 5 is fixedly installed on the outer surface of the integral support plate 17. The movement trajectory of the concave-convex tapered rod 5 corresponds to the interior of the concave-convex bite plate 7. The end of the concave-convex bite plate 7 is rotatably installed around the nested rotating seat 9. The concave-convex bite plate 7 is always plastically squeezed inward. Moreover, the front end diameter of the expansion sliding rod 14 is large, which will abut and expand the inner diameter of the concave-convex bite plate 7.

[0029] When a deeper engagement and locking of the first pair of connectors 1 and the second pair of connectors 2 is required, the extension sliding rod 14 is pushed forward along the inside of the nested rotating seat 9. The extension sliding rod 14 slides forward along the sliding inner groove 15 opened at the center of the nested rotating seat 9. During the sliding process, the front end of the extension sliding rod 14 abuts against the concave-convex engagement plate 7. Since the end of the concave-convex engagement plate 7 is rotatably mounted on the outer surface of the concave-convex engagement plate 7 and is continuously squeezed inward due to its own plasticity, the concave-convex engagement plate is assisted by the abutment of the extension sliding rod 14. 7 will expand inwards in all directions until the first pair of connectors 1 enters the interior. The movement of the first pair of connectors 1 will drive the integrated support plate 17 fixedly installed inside to move. The integrated support plate 17 will simultaneously drive the concave-convex conical rod 5 fixedly installed on the outer surface again, so that it enters the interior of the four sets of concave-convex interlocking plates 7 and reaches the appropriate fixed position. At this time, the expansion sliding rod 14 is released and no more force is applied. The concave-convex interlocking plates 7 will retract and bite inward, so that the concave-convex interlocking plates 7 and the concave-convex conical rod 5 are locked together and fixed, ensuring that the connection between the first pair of connectors 1 and the second pair of connectors 2 is more stable.

[0030] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0031] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. An automatic locking automobile joint, comprising a first joint (1) and a second joint (2), the outer surface of the first joint (1) is provided with a second corresponding magnet (8), and the inside of the second corresponding magnet (8) is provided with a sliding elastic mechanism for fixing a sliding plate (4) for jointing. characterized in that The sliding elastic mechanism comprises a first limiting jointing frame (3) which is fixedly installed on the outer surface of the second joint (2), the installation position of the first limiting jointing frame (3) corresponds to the moving position of the sliding plate (4) for jointing, the sliding plate (4) for jointing is fixedly installed on the inner surface of the first joint (1), and the inside of the second joint (2) is provided with an integrated support disc (17), and the outer surface of the integrated support disc (17) is provided with an embedded sliding mechanism for fixing a concave-convex tapered rod (5).

2. An automatic locking vehicle coupling according to claim 1, characterised in that: The embedded sliding mechanism comprises a nested rotating seat (9) which is fixedly installed on the inner surface of the second joint (2), and the center of the nested rotating seat (9) is provided with a sliding inner groove (15), and the inside of the sliding inner groove (15) is provided with an expansion sliding rod (14).

3. An automatic locking vehicle coupling according to claim 2, characterised in that: The outer surface of the nested rotating seat (9) is provided with a concave-convex clamping plate (7) which is rotatably installed on the outer surface of the nested rotating seat (9), the front end of the expansion sliding rod (14) abuts against the inside of the concave-convex clamping plate (7) and expands it, the inside of the concave-convex clamping plate (7) is expanded and enlarged, the inside of the concave-convex clamping plate (7) is expanded and enlarged, and the inside of the concave-convex clamping plate (7) is expanded and enlarged.

4. An automatic locking vehicle coupling according to claim 1, characterised in that: The inner surface of the second joint (2) is provided with a first corresponding magnet (6), the outer surface of the first joint (1) is provided with a second corresponding magnet (8), the moving track of the second corresponding magnet (8) passes through the inside of the first corresponding magnet (6), and the outer surface of the second corresponding magnet (8) is provided with an anti-magnetic surrounding frame (10).

5. An automatic locking vehicle coupling according to claim 4, characterised in that: The upper surface of the anti-magnetic surrounding frame (10) is provided with a traction fixing rod (11), the outer surface of the first joint (1) is provided with a second limiting sliding frame (16), the two side ends of the traction fixing rod (11) are slidably installed in the inside of the second limiting sliding frame (16), and the inside of the second limiting sliding frame (16) is provided with an extrusion pushing spring (12).

6. An automatic locking vehicle coupling according to claim 5, characterised in that: The outer surface of the traction fixing rod (11) abuts against the extrusion pushing spring (12), the two side surfaces of the second limiting sliding frame (16) are provided with a sliding abutting rod (13), the outer surface of the sliding abutting rod (13) abuts against the traction fixing rod (11), and the anti-magnetic surrounding frame (10) and the traction fixing rod (11) are integrally designed.

7. An automatic locking vehicle coupling according to claim 3, characterised in that: The end of the concave-convex clamping plate (7) is rotatably installed around the nested rotating seat (9), the concave-convex clamping plate (7) is always plastically extruded inward, and the front end of the expansion sliding rod (14) with a large diameter abuts against and expands the inner diameter of the concave-convex clamping plate (7).

Citation Information

Patent Citations

  • Automobile quick-plug connector with automatic locking function

    CN222577614U