Circular push-pull self-locking connector

Abstract

This utility model relates to the field of self-locking connections and discloses a circular push-pull self-locking connector, including a connector socket, a connector plug inserted into the end of the connector socket, a sealing ring fixedly connected to the end of the connector plug, a protective sleeve fixedly connected to the outer wall of the sealing ring, a copper mesh shielding layer fixedly connected to the inner wall of the protective sleeve, a nano-coating fixedly connected to the inner wall of the copper mesh shielding layer, and an expanding rubber fixedly connected to the inner wall of the nano-coating. A connecting ring is fixedly connected to the end of the protective sleeve, a positioning component is provided on the outer wall of the connecting ring, and an anti-slip strip is fixedly connected to the inner wall of the expanding rubber. In this utility model, the sealing ring and protective sleeve design effectively prevent dust and water damage and resist physical impact. The internal copper mesh shielding layer and nano-coating ensure stable signal transmission and electrical insulation, thus improving the overall reliability, durability, and environmental adaptability of the connection.

Description

Technical Field

[0001] This utility model relates to the field of self-locking connections, and more particularly to a circular push-pull self-locking connector. Background Technology

[0002] Circular push-pull self-locking connectors are electrical connection devices widely used in industrial control, aerospace, medical devices, communication equipment and other fields. Their core function is to realize the rapid and stable connection and disconnection of circuits or signals. With the symmetry of the circular structure and the push-pull operation, these connectors have the characteristics of convenient connection and high insertion and removal efficiency. At the same time, the self-locking function can effectively prevent accidental disengagement under complex working conditions such as vibration and impact, ensuring the continuity of equipment operation.

[0003] Commonly available circular push-pull self-locking connectors typically consist of a connector socket and a connector plug that mate with each other. The socket is fixed to the device housing as the docking base, and the plug achieves a self-locking connection with the socket through a push-pull action. The end of the plug is connected to an external cable to form a complete transmission link. To achieve basic protection, some connectors will have a simple rubber sealing sleeve at the connection between the plug and the cable to block dust and a small amount of moisture.

[0004] In terms of protective structure design, existing technologies mostly use a single rubber material for the sealing sleeve, which can only achieve basic sealing and is insufficient for adapting to high-level dust and water resistance and complex electromagnetic environments. Secondly, the connector needs to connect to external cables, and the cables lack effective bending and pulling protection at the connector tail, making them prone to damage or internal solder joint breakage due to excessive bending. At the same time, external stress is easily transmitted to the mating interface, affecting connection reliability. Furthermore, common shielding designs are mostly concentrated at the mating interface, leaving blind spots in electromagnetic shielding protection for the tail cable segment. Therefore, a circular push-pull self-locking connector is proposed to solve the above problems. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides a circular push-pull self-locking connector, which aims to improve the problem of poor connection effect caused by the lack of protection at the connection between the connector and the cable in the prior art.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a circular push-pull self-locking connector, including a connector socket, a connector plug inserted into the end of the connector socket, a sealing ring fixedly connected to the end of the connector plug, a protective sleeve fixedly connected to the outer wall of the sealing ring, a copper mesh shielding layer fixedly connected to the inner wall of the protective sleeve, a nano-coating fixedly connected to the inner wall of the copper mesh shielding layer, an expanding rubber fixedly connected to the inner wall of the nano-coating, a connecting ring fixedly connected to the end of the protective sleeve, and a positioning component provided on the outer wall of the connecting ring.

[0007] As a further description of the above technical solution:

[0008] The inner wall of the expanded rubber is fixedly connected with anti-slip strips.

[0009] As a further description of the above technical solution:

[0010] The positioning component includes a connecting rod, and an elastic band is fixedly connected to the outer wall of the connecting ring. A through groove is provided through the outer wall of the elastic band.

[0011] As a further description of the above technical solution:

[0012] The outer wall of the connecting rod is fixedly connected to the outer wall of the sealing collar, and the connecting rod is L-shaped.

[0013] As a further description of the above technical solution:

[0014] The outer wall of the connecting rod is adapted to the inner wall of the through groove.

[0015] As a further description of the above technical solution:

[0016] The inner surface of the connecting ring is provided with a groove, the inner wall of the groove is slidably connected with a pressure plate, the outer wall of the pressure plate is fixedly connected with a spring, the inner surface of the pressure plate is provided with a clearance groove, and the inner wall of the clearance groove is rotatably connected with a guide shaft.

[0017] As a further description of the above technical solution:

[0018] The end of the spring away from the pressure plate is fixedly connected to the inner wall of the slot.

[0019] As a further description of the above technical solution:

[0020] The clamping plate is designed to be smaller than a semi-circle.

[0021] This utility model has the following beneficial effects:

[0022] 1. In this utility model, the sealing ring and protective sleeve design effectively prevent dust and water and resist physical impact. The internal copper mesh shielding layer and nano coating ensure stable signal transmission and electrical insulation. The expanding rubber and anti-slip strip enhance the internal tightness. The positioning component keeps the protective sleeve in a contracted state when idle, thus improving the overall connection reliability, durability and environmental adaptability.

[0023] 2. In this utility model, a cable guiding and flexible clamping mechanism is formed by a spring-preloaded clamping plate and a guide shaft-equipped clearance groove inside the connecting ring. When threading the cable, the guide shaft rolls to guide the cable, greatly reducing friction. After installation, the spring pushes the clamping plate to gently hold the cable, providing a certain holding force while avoiding damage to the cable sheath, thus improving the convenience and safety of installation and maintenance. Attached Figure Description

[0024] Figure 1 This is a side view of the main structure of the circular push-pull self-locking connector proposed in this utility model;

[0025] Figure 2 This is a top view schematic diagram of the main structure of the circular push-pull self-locking connector proposed in this utility model;

[0026] Figure 3 This is a partial exploded view of the circular push-pull self-locking connector proposed in this utility model;

[0027] Figure 4 This is a schematic diagram of the connecting ring structure of the circular push-pull self-locking connector proposed in this utility model.

[0028] Legend:

[0029] 1. Connector socket; 2. Connector plug; 3. Sealing collar; 4. Protective sleeve; 5. Copper mesh shielding layer; 6. Nano coating; 7. Expanding rubber; 8. Connecting ring; 9. Connecting rod; 10. Elastic band; 11. Through groove; 12. Anti-slip strip; 13. Groove; 14. Pressure plate; 15. Spring; 16. Clearance groove; 17. Guide shaft. Detailed Implementation

[0030] 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.

[0031] Reference Figures 1-3This utility model provides an embodiment of a circular push-pull self-locking connector, including a connector socket 1, which serves as the fixing base component of the connector, enhancing the overall stability and reliability of the connection, and providing precise docking guidance for plug insertion. A connector plug 2 is inserted into the end of the connector socket 1, enabling quick connection and disconnection through a pluggable structure, achieving efficient signal and current transmission, ensuring a tight connection, and avoiding malfunctions caused by poor contact. The connector plug 2 connects to an external cable, transmitting the signals or current received or output by the plug to external devices, establishing a stable signal communication channel between the external devices and the connector. The connector socket 1 has at least one axially extending guide keyway on its inner wall, and the connector plug 2 has a guide key on its outer wall that matches the guide keyway. The outer wall of the connector plug 2 also has a resilient self-locking claw, and the inner wall of the connector socket 1 has a corresponding engaging groove. When the connector plug 2 is inserted into the connector socket 1 and rotated a certain angle, the guide key and guide keyway are misaligned and limited, while the resilient self-locking claw engages with the engaging groove, locking the connector. Reverse rotation and pulling out achieve separation. A sealing collar 3, made of resilient sealing material, is fixedly connected to the end of the connector plug 2, enhancing the connector plug's stability. 2. The sealing at the cable connection point effectively prevents dust, moisture, oil, and other impurities from entering the interior. A protective sleeve 4 is fixedly connected to the outer wall of the sealing ring 3. Made of aging-resistant and impact-resistant polymer material, it provides comprehensive physical protection for the internal copper mesh shielding layer 5, cables, and other structures, resisting external collisions, friction, and environmental corrosion. The protective sleeve 4 protects the cable by covering it, reducing the risk of excessive bending at the connector tail, which could lead to cable damage or internal solder joint breakage. A copper mesh shielding layer 5, made of finely woven copper wire, is fixedly connected to the inner wall of the protective sleeve 4, forming an electromagnetic shielding barrier to block external electromagnetic interference signals and ensure signal integrity. The transmission stability and purity are particularly suitable for complex electromagnetic environments. The inner wall of the copper mesh shielding layer 5 is fixedly connected with a nano-coating 6, which is coated with nano-level protective materials to enhance the wear resistance and corrosion resistance of the inner wall of the protective sleeve 4, while improving electrical insulation performance and preventing short circuits caused by direct contact between the copper mesh and the cable. The inner wall of the nano-coating 6 is fixedly connected with an expansion rubber 7, and the inner wall of the expansion rubber 7 is fixedly connected with an anti-slip strip 12. The end of the protective sleeve 4 is fixedly connected with a connecting ring 8, which is made of metal or high-strength plastic, to provide a stable support point for the installation of the positioning components, while strengthening the structural strength of the end of the protective sleeve 4 to prevent end cracking.

[0032] Reference Figures 1-3The outer wall of the connecting ring 8 is provided with a positioning component, which includes a connecting rod 9, an elastic band 10, and a through groove 11. The outer wall of the connecting rod 9 is fixedly connected to the outer wall of the sealing sleeve 3. The connecting rod 9 is L-shaped, and its bending structure can form a snap-fit ​​limit, which facilitates reliable snap-fit ​​positioning with the through groove 11 and prevents the through groove 11 from accidentally falling off. The outer wall of the connecting rod 9 is adapted to the inner wall of the through groove 11. The outer wall of the connecting ring 8 is fixedly connected with an elastic band 10. The outer wall of the elastic band 10 has a through groove 11. Pulling the elastic band 10 makes the through groove 11 fit on the connecting rod 9, so that the protective sleeve 4 is in a contracted state, preventing the protective sleeve 4 from loosening when the connector is not in use.

[0033] Reference Figure 4 The inner surface of the connecting ring 8 has a groove 13, the size of which matches the size of the clamping plate 14 and the spring 15, providing sufficient space for the installation and movement of the clamping plate 14 and the spring 15. The clamping plate 14 is slidably connected to the inner wall of the groove 13. The clamping plate 14 is set in a shape smaller than a semicircle. The outer wall of the clamping plate 14 is fixedly connected to the spring 15. The end of the spring 15 away from the clamping plate 14 is fixedly connected to the inner wall of the groove 13. The inner surface of the clamping plate 14 has a relief groove 16, and the inner wall of the relief groove 16 is rotatably connected to the guide shaft 17. The surface of the guide shaft 17 is polished so that when installing or adjusting the cable, the sliding friction is converted into rolling friction, which greatly reduces the friction between the cable and the clamping plate 14 and prevents the outer sheath of the cable from being scratched.

[0034] Working principle: The positioning component achieves the retraction and fixation of the protective sleeve 4 through elastic constraint. When storage is required, the elastic band 10 on the outer wall of the connecting ring 8 is pulled, so that the through groove 11 on it aligns and engages with the L-shaped connecting rod 9 on the outer wall of the sealing sleeve 3. The elastic tension of the elastic band 10 drives the protective sleeve 4 to retract, preventing the protective sleeve 4 from being loose and messy when not in use, making it easier to store and manage. During the process of the cable being inserted into the protective sleeve 4, the groove 13 on the inner surface of the connecting ring 8, the pressure plate 14, the spring 15, and the guide shaft 17 constitute an auxiliary guiding structure. When threading the cable, the cable pushes the guide shaft 17, causing the pressure plate 14 to retract into the groove 13, and the spring 15 is compressed. At the same time, the guide shaft 17 reduces the frictional resistance between the cable and the pressure plate 14 by rotating, making the threading process smoother. After threading is completed, the spring 15 returns to its original position and pushes the pressure plate 14 to fit the cable, further assisting in fixing the cable and preventing it from slipping. The copper mesh shielding layer 5 on the inner wall of the protective sleeve 4 can effectively block external electromagnetic interference. To ensure the stability of signal or current transmission, the nano-coating 6 enhances corrosion resistance and wear resistance, extending service life. The expanding rubber 7 and the anti-slip strip 12 work together to prevent the cable from loosening or shifting within the protective sleeve 4 when covering the cable, ensuring the connection's firmness and further strengthening the protective performance. The push-pull operation enables the connector plug 2 and connector socket 1 to be inserted and connected, completing the circuit or signal path. The external cable is fixedly connected to the connector plug 2, forming a complete transmission link. To ensure the reliability of the cable and connector connection, the sealing collar 3 fixed at the end of the connector plug 2 firstly plays a basic sealing and connection transition role. The protective sleeve 4 connected to its outer wall directly covers and supports the cable, effectively dispersing the bending stress of the cable at the tail of the connector, avoiding damage to the outer layer of the cable or breakage of the internal solder joints due to frequent bending, and improving the durability of the connection.

[0035] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model 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 utility model should be included within the protection scope of the present utility model.

Claims

1. A circular push-pull self-locking connector, comprising a connector socket (1), wherein a connector plug (2) is inserted into the end of the connector socket (1), characterized in that: A sealing collar (3) is fixedly connected to the end of the connector plug (2). A protective sleeve (4) is fixedly connected to the outer wall of the sealing collar (3). A copper mesh shielding layer (5) is fixedly connected to the inner wall of the protective sleeve (4). A nano-coating (6) is fixedly connected to the inner wall of the copper mesh shielding layer (5). An expanding rubber (7) is fixedly connected to the inner wall of the nano-coating (6). A connecting ring (8) is fixedly connected to the end of the protective sleeve (4). A positioning component is provided on the outer wall of the connecting ring (8).

2. The circular push-pull self-locking connector according to claim 1, characterized in that: The inner wall of the expanded rubber (7) is fixedly connected with an anti-slip strip (12).

3. The circular push-pull self-locking connector according to claim 1, characterized in that: The positioning component includes a connecting rod (9), and an elastic band (10) is fixedly connected to the outer wall of the connecting ring (8). A through groove (11) is provided through the outer wall of the elastic band (10).

4. The circular push-pull self-locking connector according to claim 3, characterized in that: The outer wall of the connecting rod (9) is fixedly connected to the outer wall of the sealing ring (3), and the connecting rod (9) is L-shaped.

5. The circular push-pull self-locking connector according to claim 3, characterized in that: The outer wall of the connecting rod (9) is adapted to the inner wall of the through groove (11).

6. The circular push-pull self-locking connector according to claim 1, characterized in that: The inner surface of the connecting ring (8) is provided with a groove (13), the inner wall of the groove (13) is slidably connected with a pressure plate (14), the outer wall of the pressure plate (14) is fixedly connected with a spring (15), the inner surface of the pressure plate (14) is provided with a relief groove (16), and the inner wall of the relief groove (16) is rotatably connected with a guide shaft (17).

7. The circular push-pull self-locking connector according to claim 6, characterized in that: The end of the spring (15) away from the pressure plate (14) is fixedly connected to the inner wall of the slot (13).

8. The circular push-pull self-locking connector according to claim 6, characterized in that: The clamping plate (14) is configured to be smaller than a semi-circle.

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