Anti-loosening structure of quick-lock connector
By designing rivets, limit screws, and sliding groove structures in the quick-lock connector, the problem of connector loosening in vibration environments is solved, stable locking of the insert is achieved, and the reliability of the connector is improved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- GUIZHOU SPACE APPLIANCE CO LTD
- Filing Date
- 2025-06-24
- Publication Date
- 2026-06-23
AI Technical Summary
Existing quick-lock connectors are prone to loosening in complex vibration environments, leading to the risk of connector head separation, and existing mechanical structures cannot guarantee reliability.
The plug and socket design uses rivets to rotate and connect the locking parts. Combined with the limit screw, torsion spring and slide groove structure, it ensures that the insert does not loosen during vibration. The cooperation of the limit screw and slide groove restricts the opening of the locking parts and increases friction to prevent loosening.
It effectively prevents the insert from shifting under complex working conditions, avoids the risk of connector separation due to loosening, and improves the reliability and stability of the connector.
Smart Images

Figure CN224400810U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of electrical connector technology, and in particular relates to a quick-lock connector anti-loosening structure. Background Technology
[0002] With the rapid development of aerospace, the requirements for miniaturization and lightweighting are becoming increasingly stringent. Quick-lock connectors, due to their convenient locking and small size, are increasingly used in aerospace products. Currently, the conventional J30JA1 series rectangular quick-lock connectors rely on the tension of torsion springs and mechanical structures such as locking components for locking. Under the action of torsion spring tension, the insert is tightly pressed against the inner wall of the locking component, and the friction between the insert and the locking component prevents the insert from moving. However, relying solely on torsion spring tension and friction, in complex operating environments with high vibration levels, the insert is prone to loosening, and the connector faces the risk of head-and-seat separation. Therefore, a new structure is needed to ensure its reliability. Utility Model Content
[0003] To solve the above-mentioned technical problems, this utility model provides a quick-lock connector anti-loosening structure.
[0004] This utility model is achieved through the following technical solution.
[0005] This utility model provides a quick-lock connector anti-loosening structure, including a plug and a socket. The plug is provided with a rivet, and the plug is rotatably connected to a locking member through the rivet. The plug is provided with a connecting piece, and the connecting piece is threadedly connected to a limiting screw. One end of the plug is connected to the socket, and the socket is provided with bosses on both sides, and the bosses are in contact with the front end of the locking member.
[0006] Preferably, the locking component has a cavity and a torsion spring inside. The torsion spring is placed inside the cavity, with one end of the torsion spring in contact with the rivet and the other end in contact with the inner wall of the locking component. The torsion spring is rotatably connected to the rivet.
[0007] Preferably, a first sliding groove is provided on one side of the locking member, and a locking groove is provided at one end of the first sliding groove.
[0008] Preferably, an insert is provided in the cavity, the insert is slidably connected to the locking member, the insert is L-shaped, and the insert passes through one side of the locking member through the first sliding groove.
[0009] Preferably, the locking member has a protrusion.
[0010] Preferably, the outer wall of the locking member is provided with an anti-slip strip.
[0011] Preferably, a second groove is provided on the outer wall of the plug.
[0012] The beneficial effects of this utility model are as follows:
[0013] The first sliding groove and locking groove of this utility model can prevent the insert from loosening during vibration, so that the insert will not be displaced under complex working conditions, thus preventing the anti-unlocking function from failing. It also avoids the connector from opening due to the insert loosening, accidental operation, or other unknown external forces, thereby increasing the risk of plug and socket separation. Attached Figure Description
[0014] Figure 1 This is a schematic diagram of the structure of this utility model;
[0015] Figure 2 This is a structural schematic diagram of the locking component of this utility model;
[0016] Figure 3 This is a partial structural schematic diagram of the locking component of this utility model;
[0017] In the diagram: 1-Plug, 11-Second slide groove, 2-Socket, 3-Rivet, 4-Locking component, 41-Cavity, 42-First slide groove, 43-Locking groove, 44-Protrusion, 45-Anti-slip strip, 5-Connecting piece, 6-Limit screw, 7-Boss, 8-Torsion spring, 9-Plug. Detailed Implementation
[0018] The technical solution of this utility model is further described below, but the scope of protection is not limited to what is described.
[0019] Example:
[0020] like Figures 1 to 3 As shown, a quick-lock connector anti-loosening structure includes a plug 1 and a socket 2. Rivets 3 are symmetrically arranged on both side walls of the plug 1. The plug 1 is rotatably connected to a locking member 4 via the rivets 3. A connecting piece 5 is provided on the plug 1, and a limiting screw 6 is threadedly connected to the connecting piece 5. One end of the plug 1 is connected to the socket 2. Bosses 7 are provided on both sides of the socket 2, and the bosses 7 are in contact with the front end of the locking member 4. One end of the limiting screw 6 is placed inside the cavity 41 of the locking member 4. By adjusting the length of the limiting screw 6 penetrating the connecting piece 5, the limiting screw 6 restricts the opening size of the front end of the locking member 4.
[0021] The locking component 4 is provided with a cavity 41 and a torsion spring 8. The torsion spring 8 is placed in the cavity 41. One end of the torsion spring 8 is in contact with the rivet 3, and the other end of the torsion spring 8 is in contact with the inner wall of the locking component 4. The torsion spring 8 is rotatably connected to the rivet 3.
[0022] The locking member 4 is provided with a first sliding groove 42 on one side and a locking groove 43 at the tail end of the first sliding groove 42. The first sliding groove 42 and the locking groove 43 are arranged perpendicularly. This arrangement allows the insert 9 to be locked after the tail end of the insert 9 enters the locking groove 43 and no longer slides towards the front end of the first sliding groove 42. After the insert 9 enters the locking groove 43, the front end of the locking member 4 cannot open.
[0023] An insert 9 is provided in the cavity 41. The insert 9 is slidably connected to the locking member 4. The insert 9 is L-shaped and passes through one side of the locking member 4 via the first sliding groove 42.
[0024] The locking member 4 is provided with a protrusion 44.
[0025] The outer wall of the tail end of the locking member 4 is provided with an anti-slip strip 45 to increase the friction when the locking member 4 is moved.
[0026] The outer wall of the plug 1 is provided with a second sliding groove 11. The protrusion 44 can be slidably connected within the second sliding groove 11 to increase the stability of the locking member 4 when locked. When the tail end of the locking member 4 is pressed, the locking member 4 rotates to cause the protrusion 44 to leave the second sliding groove 11.
[0027] How to use:
[0028] S1: When plug 1 is inserted into the corresponding socket 2, the tail end of the locking piece 4 should be pressed down to open the front end of the locking end. After the connection is in place, the tail end of the locking piece 4 should be released so that the locking piece 4 of plug 1 can lock the protrusion 7 of socket 2 for locking, thus achieving locking.
[0029] S2: After locking, pull the insert 9 down towards the end of the plug 1 to the locking groove 43 to enhance the anti-unlocking function. Under the tension of the torsion spring 8, the insert 9 is pressed against the inner wall of the locking part 4. Since the bent part of the insert 9 has a small contact with the locking groove 43, the insert 9 can be locked after being pulled down into place. During use after the plug 1 is connected to the corresponding socket 2, the insert 9 will not slide to the unlocking position at the front end of the first slide groove 42.
Claims
1. A quick-lock connector anti-loosening structure, characterized in that: Includes a plug (1) and a socket (2). The plug (1) is provided with a rivet (3). The plug (1) is rotatably connected to the locking member (4) through the rivet (3). The plug (1) is provided with a connecting piece (5). The connecting piece (5) is threadedly connected to a limiting screw (6). One end of the plug (1) is connected to the socket (2). The socket (2) is provided with bosses (7) on both sides. The bosses (7) are in contact with the front end of the locking member (4).
2. The quick-lock connector anti-loosening structure as described in claim 1, characterized in that: The locking member (4) is provided with a cavity (41) and a torsion spring (8). The torsion spring (8) is placed in the cavity (41). One end of the torsion spring (8) is in contact with the rivet (3), and the other end of the torsion spring (8) is in contact with the inner wall of the locking member (4). The torsion spring (8) is rotatably connected to the rivet (3).
3. The quick-lock connector anti-loosening structure as described in claim 1, characterized in that: The locking member (4) has a first groove (42) on one side and a locking groove (43) on one end.
4. The quick-lock connector anti-loosening structure as described in claim 2, characterized in that: The cavity (41) is provided with a insert (9), which is slidably connected to the locking member (4). The insert (9) is L-shaped and passes through one side of the locking member (4) through the first groove (42).
5. The quick-lock connector anti-loosening structure as described in claim 1, characterized in that: The locking member (4) is provided with a protrusion (44).
6. The quick-lock connector anti-loosening structure as described in claim 1, characterized in that: The locking member (4) has an anti-slip strip (45) on its outer wall.
7. The quick-lock connector anti-loosening structure as described in claim 1, characterized in that: The plug (1) has a second groove (11) on its outer wall.