A terminal structure with a rotation-stopping, advance-stopping, and retreat-stopping snap ring

By designing anti-rotation, anti-advance, and anti-reverse retaining rings in the terminal structure, and utilizing the cooperation of hooks and notches, the problems of circumferential rotation and axial displacement of the anti-detachment retaining rings are solved, thereby enhancing the stability and reliability of the terminal connection.

CN224458652UActive Publication Date: 2026-07-03AMPHENOL TECH (SHENZHEN) LTD CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
AMPHENOL TECH (SHENZHEN) LTD CO LTD
Filing Date
2025-04-17
Publication Date
2026-07-03

AI Technical Summary

Technical Problem

Traditional metal terminals' anti-disengagement rings are prone to circumferential rotation and axial displacement due to friction, affecting connection stability.

Method used

The design incorporates a terminal structure with anti-rotation, anti-advance, and anti-reverse retaining rings. By forming hooks at both ends of the opening of the anti-detachment retaining ring and setting corresponding notches on the terminal body, the circumferential rotation and axial displacement of the retaining ring are restricted.

Benefits of technology

The retaining ring achieves the functions of preventing rotation and preventing forward and backward movement, thereby improving the connection stability of the terminal structure and the reliability of the electrical connection.

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Abstract

This utility model discloses a terminal structure with an anti-rotation, anti-advance, and anti-reverse retaining ring, including a terminal body and an anti-detachment retaining ring. Both the terminal body and the anti-detachment retaining ring are designed as open cylindrical structures, with the two ends of the opening of the anti-detachment retaining ring extending inward to form hooks. The terminal body has notches corresponding to the hooks. When the anti-detachment retaining ring is fitted onto the terminal body, the hooks are embedded in the notches to restrict the circumferential rotation and axial displacement of the anti-detachment retaining ring relative to the terminal body. This terminal structure achieves the functions of anti-rotation, anti-advance, and anti-reverse functions of the retaining ring, effectively preventing circumferential rotation and axial displacement of the retaining ring, and further improving the stability of the terminal structure connection.
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Description

Technical Field

[0001] This utility model relates to the field of terminal connection technology, specifically to a terminal structure with a retaining ring that prevents rotation, forward movement, and backward movement. Background Technology

[0002] In the field of terminal connections, traditional metal terminal anti-disengagement clasps mostly adopt an open cylindrical structure, achieving fixation through bending or locking holes. However, the friction between the plastic housing and the metal terminal can easily cause the clasp to rotate circumferentially, affecting the connection stability; moreover, existing clasps lack an effective axial limiting structure, and may displace due to vibration or external forces after long-term use.

[0003] Therefore, a terminal structure with a retaining ring for preventing rotation, advancing, and retreating is needed to solve the above problems. Utility Model Content

[0004] To overcome the shortcomings of the existing technology, this utility model provides a terminal structure with a retaining ring that prevents rotation, advance, and retreat, thereby realizing the functions of the retaining ring in preventing rotation and advance and retreat, effectively preventing circumferential rotation and axial displacement of the retaining ring, and further improving the stability of the terminal structure connection.

[0005] The technical solution adopted by this utility model to solve its technical problem is:

[0006] A terminal structure with an anti-rotation, anti-advance, and anti-reverse retaining ring includes a terminal body and an anti-detachment retaining ring. Both the terminal body and the anti-detachment retaining ring are configured as open cylindrical structures, and the two ends of the opening of the anti-detachment retaining ring extend inward to form hooks. The terminal body has a notch corresponding to the hook. When the anti-detachment retaining ring is sleeved on the terminal body, the hook is embedded in the notch to restrict the circumferential rotation and axial displacement of the anti-detachment retaining ring relative to the terminal body.

[0007] As a further improvement to the above technical solution, the end of the hook is provided with a chamfer or arc-shaped guide surface.

[0008] As a further improvement to the above technical solution, the notch extends along the axial direction of the terminal body, and the depth of the notch is greater than the insertion length of the hook.

[0009] As a further improvement to the above technical solution, a limiting groove is recessed in the middle of the terminal body, and the notch is located on the limiting groove, and the anti-disengagement ring is embedded in the limiting groove.

[0010] As a further improvement to the above technical solution, the depth of the limiting groove is not less than the thickness of the anti-detachment clasp.

[0011] As a further improvement to the above technical solution, the outer periphery of the anti-detachment ring is provided with a plurality of outwardly protruding spring pieces at even intervals, and the ends of the spring pieces are used to abut against the outer plastic shell.

[0012] As a further improvement to the above technical solution, a recess is provided at the front end of the terminal body. The recess is evenly distributed along the circumference of the terminal body and is used to limit the insertion depth of the connector.

[0013] As a further improvement to the above technical solution, the rear end of the terminal body is provided with a protrusion, and the protrusion is evenly distributed along the outer periphery of the terminal body.

[0014] The beneficial effects of this utility model are:

[0015] This invention forms four hooks by extending inward from both ends of the anti-detachment retaining ring, and two notches are provided on the terminal body at opposite positions. The four hooks are correspondingly embedded and fastened into the notches of the terminal body, realizing the functions of preventing rotation and preventing forward and backward movement of the retaining ring, further improving the stability of the terminal structure connection, and ensuring the stability and reliability of the electrical connection. Attached Figure Description

[0016] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0017] Figure 1 This is a three-dimensional schematic diagram of the terminal structure of this utility model;

[0018] Figure 2 This is a front view schematic diagram of the terminal structure of this utility model;

[0019] Figure 3 This is a cross-sectional view of the end face of the terminal structure of this utility model.

[0020] Reference numerals in the attached diagram: 1. Terminal body; 2. Anti-detachment retaining ring; 3. Hook; 4. Notch; 5. Limiting groove; 6. Spring piece. Detailed Implementation

[0021] The following will clearly and completely describe the concept, specific structure, and technical effects of this utility model in conjunction with embodiments and accompanying drawings, so as to fully understand the purpose, features, and effects of this utility model. Obviously, the described embodiments are only a part of the embodiments of this utility model, not all of them. Other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are all within the scope of protection of this utility model. Furthermore, all connections / connections involved in the patent do not simply refer to direct contact between components, but rather to the ability to form a better connection structure by adding or reducing connecting accessories according to specific implementation conditions. For example, fixed connections / fixed installations can use screw connections, bolt connections, pin connections, key connections, adhesive connections, mortise and tenon connections, welding, riveting, etc., as needed. For detachable connections, screw connections, bolt connections, threaded connections, snap-fit ​​connections, mortise and tenon connections, Velcro connections, etc., can be used as needed. The various technical features in this utility model can be combined interactively without contradicting each other.

[0022] Reference Figure 1 , Figure 2 A terminal structure with an anti-rotation, anti-advance, and anti-reverse retaining ring includes a terminal body 1 and an anti-detachment retaining ring 2. Both the terminal body 1 and the anti-detachment retaining ring 2 are designed as open cylindrical structures. The two ends of the opening of the anti-detachment retaining ring 1 extend inward to form four hooks 3. The design of the four hooks 3 increases the number of connection points between the anti-detachment retaining ring 2 and the terminal body 1 in four directions, thereby improving the stability and reliability of the connection. The terminal body 1 has a notch 4 corresponding to the hooks 3, the position and size of which precisely match the hooks 3, so that when the anti-detachment retaining ring 2... When fitted onto the terminal body 1, the hook 3 can be accurately embedded in the notch 4. The four hooks 3 of the anti-detachment ring 2 are arranged in opposite directions in pairs. The hooks 3 hook onto the side wall of the notch 4 to restrict the rotation of the anti-detachment ring 2 in the circumferential direction. The hooks 3 are located at the front and rear ends of the anti-detachment ring 2 and are embedded in the notch 4. The side wall of the notch 4 blocks the movement of the anti-detachment ring 2 in the axial direction, thereby realizing the functions of stopping rotation, stopping forward movement and stopping backward movement, ensuring a reliable connection between the terminal body 1 and the anti-detachment ring 2, and ensuring the stability and reliability of the electrical connection.

[0023] Reference Figure 3 In the embodiments of this utility model, the end of the hook 3 is provided with a chamfer or arc-shaped guide surface. The chamfer or arc-shaped guide surface can play a guiding role during the installation process, making it easier for the hook 3 to be aligned and embedded in the notch 4, thereby improving the installation efficiency and reducing the risk of damage to the terminal body 1 and the anti-detachment ring 2 during the installation process.

[0024] Reference Figure 2In this embodiment of the present invention, the notch 4 extends along the axial direction of the terminal body 1, and the depth of the notch 4 is greater than the embedding length of the hook 3. This design increases the movement margin of the hook 3 in the notch 4, improves the fault tolerance of the installation, and enables the anti-detachment ring 2 to better adapt to the manufacturing error and installation position deviation of the terminal body 1 during the installation process.

[0025] Reference Figure 2 In an embodiment of this utility model, a limiting groove 5 is recessed in the middle of the terminal body 1, and the notch 4 is located on the limiting groove 5. The anti-detachment ring 2 is embedded in the limiting groove 5, which provides more precise control for the installation and positioning of the anti-detachment ring 2 on the terminal body 1, and further enhances the stability and reliability of the terminal structure.

[0026] Specifically, the depth of the limiting groove 5 is not less than the thickness of the anti-detachment ring 2, so that the anti-detachment ring 2 can be completely embedded in the limiting groove 5, providing radial positioning for the terminal body 1, initially restricting its movement in the radial direction of the terminal body 1, and ensuring the relative position stability between the anti-detachment ring 2 and the terminal body 1.

[0027] Reference Figure 1 In the embodiments of this utility model, the outer periphery of the anti-detachment ring 2 is provided with a plurality of outwardly protruding spring pieces 6 at even intervals. When the spring pieces 6 are subjected to pressure from the outer plastic shell, they deform and generate elastic force. This elastic force makes the anti-detachment ring 2 form a tight abutment relationship with the outer plastic shell, thereby enhancing the connection stability and reliability between the terminal structure and the outer plastic shell.

[0028] Reference Figure 1 In an embodiment of this utility model, a recess is provided at the front end of the terminal body 1. The recess is evenly distributed along the circumference of the terminal body. When the connector is inserted into the terminal body 1, the recess will contact the connector, thereby preventing the connector from being inserted further and ensuring that the connector is in the correct position. This helps to prevent the connector from being inserted too deeply, which could lead to an electrical short circuit or other malfunctions.

[0029] Reference Figure 1 In an embodiment of this utility model, the rear end of the terminal body 1 is provided with a protrusion. The protrusion is evenly distributed along the outer periphery of the terminal body. During the installation of the terminal body 1, the protrusion can form a good fit with the external structure (such as a plastic shell, a fixing seat, etc.), which enhances the connection stability between the terminal body and the external structure, helps to prevent the terminal body from loosening or shifting after installation, and improves the reliability and stability of the equipment.

[0030] The above is a detailed description of the preferred embodiments of the present utility model. However, the present utility model is not limited to the described embodiments. Those skilled in the art can make various equivalent modifications or substitutions without departing from the spirit of the present utility model. All such equivalent modifications or substitutions are included within the scope defined by the claims of this application.

Claims

1. A terminal structure with rotation-stopping, advancement-stopping, and retreat-stopping snap rings, characterized by: The device includes a terminal body and an anti-detachment retaining ring. Both the terminal body and the anti-detachment retaining ring are configured as open cylindrical structures, and the two ends of the opening of the anti-detachment retaining ring extend inward to form hooks. The terminal body has a notch corresponding to the hook. When the anti-detachment retaining ring is sleeved on the terminal body, the hook is embedded in the notch to restrict the circumferential rotation and axial displacement of the anti-detachment retaining ring relative to the terminal body.

2. The terminal structure with a rotation-stopping, advance-stopping, and retreat-stopping snap ring according to claim 1, characterized in that: The end of the hook is provided with a chamfered or arc-shaped guide surface.

3. The terminal structure with a rotation-stopping, advance-stopping, and retreat-stopping snap ring according to claim 1, characterized by The notch extends axially along the terminal body, and the width of the notch is greater than the insertion width of the hook.

4. A terminal structure with an anti-rotation, anti-advance, and anti-reverse retaining ring according to claim 1, characterized in that, The terminal body has a recessed limiting groove in the middle, and the notch is located on the limiting groove. The anti-disengagement ring is embedded in the limiting groove.

5. The terminal structure with a rotation-stopping, advance-stopping, and retreat-stopping snap ring according to claim 4, characterized by The depth of the limiting groove is not less than the thickness of the anti-detachment clasp.

6. The terminal structure with a rotation-stopping, advance-stopping, and retreat-stopping snap ring according to claim 1, characterized by The outer circumference of the anti-detachment clasp is provided with a plurality of outwardly protruding spring pieces at even intervals, and the ends of the spring pieces are used to abut against the outer plastic shell.

7. The terminal structure with a rotation-stopping, advance-stopping, and retreat-stopping snap ring according to claim 1, characterized by The front end of the terminal body is provided with a recessed block, which is evenly distributed along the circumference of the terminal body. The recessed block is used to limit the insertion depth of the connector.

8. The terminal structure with a rotation-stopping, advance-stopping, and retreat-stopping snap ring according to claim 1, characterized by The terminal body has a protrusion at its rear end, and the protrusion is evenly spaced along the outer periphery of the terminal body.