A male-female plug-in connection structure
The design of the clamping and alignment mechanism solves the problem of loosening of male and female plug-in connectors in vibration environments, achieving a stable connection between the plug and socket and avoiding poor contact and mis-insertion.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- UNIWON
- Filing Date
- 2025-09-15
- Publication Date
- 2026-07-31
AI Technical Summary
Existing male-female plug-in connectors lack a self-locking mechanism, and are prone to loosening after connection, especially in vibrating environments, leading to poor contact.
The device employs a clamping mechanism and an alignment mechanism. The clamping mechanism uses a combination of a fixed block, a limiting ring, a two-way lead screw, and a clamping plate to achieve stable clamping of the plug. The alignment mechanism uses a fixed ring and an alignment ring to ensure accurate positioning of the plug and socket.
It improves the connection stability of the plug and socket, avoids loosening and mis-insertion in vibrating environments, and ensures the reliability of the electrical connection.
Smart Images

Figure CN224582626U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of male-female plug-in connector technology, specifically a male-female plug-in connection structure. Background Technology
[0002] Male connectors typically have protruding metal pins or plugs, while female connectors typically have protruding metal slots or holes to accept the insertion of the male connector. Male connectors are usually referred to as plugs, while female connectors are usually referred to as sockets. In electrical or electronic equipment, male connectors are typically used to connect power or signal sources, while female connectors are typically used to receive these signals or power and transmit them to other devices or components.
[0003] However, existing male-female plug-in connectors lack a self-locking mechanism, and are prone to loosening after connection, especially in vibrating environments, which can lead to poor contact. Utility Model Content
[0004] The purpose of this utility model is to provide a male-female plug-in connection structure to solve the problem mentioned in the background art that the existing male-female plug-in connectors lack a self-locking mechanism and are prone to loosening after connection, especially in a vibration environment, which can lead to poor contact.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a male-female plug-in connection structure, comprising:
[0006] A base, including a socket, wherein a plug is provided on the upper surface of the socket;
[0007] The clamping mechanism includes a fixed block, which is fixedly connected to the upper surface of the socket. A limit ring is rotatably connected inside the fixed block. A bidirectional lead screw is fixedly connected to the surface of the limit ring. A rotating head is fixedly connected to one end of the bidirectional lead screw. A limit plate is fixedly connected to the other end of the bidirectional lead screw. A movable plate is movably connected to the surface of the bidirectional lead screw. A connecting rod is fixedly connected to the surface of the movable plate. A clamping plate is fixedly connected to the end of the connecting rod away from the movable plate.
[0008] Preferably, the alignment mechanism includes a fixing ring and an alignment ring. The fixing ring is fixedly connected to the upper surface of the socket, and the alignment ring is fixedly connected to the surface of the plug. The upper surface of the fixing ring has a slot, and the lower surface of the alignment ring has a plug fixedly connected to it.
[0009] Preferably, the limiting ring is circular, and the bidirectional lead screw is rotatably connected to the limiting ring and the fixing block.
[0010] Preferably, the rotating head is rotatably connected to the fixed block via a bidirectional lead screw, and the limiting plate is rotatably connected to the fixed block via a bidirectional lead screw.
[0011] Preferably, the movable plates are distributed in two groups on the surface of the bidirectional lead screw, with the side of the movable plate closest to the socket in close contact with the surface of the socket, and the movable plates are slidably connected to the socket via the bidirectional lead screw.
[0012] Preferably, the clamp is in the shape of an arc plate, and the clamp is movably connected to the plug via a movable plate and a connecting rod.
[0013] Preferably, both the fixing ring and the alignment ring are circular, the alignment ring is movably connected to the fixing ring via a plug, and the insertion block is movably connected to the slot via the alignment ring.
[0014] Compared with the prior art, the beneficial effects of this utility model are:
[0015] 1. Through the rotational connection of the fixed block and the limiting ring, the fixed connection of the limiting ring and the bidirectional lead screw, the fixed connection of the bidirectional lead screw and the rotating head, the fixed connection of the bidirectional lead screw and the limiting plate, the movable connection of the bidirectional lead screw and the moving plate, the fixed connection of the moving plate and the connecting rod, and the fixed connection of the connecting rod and the clamping plate, after connecting the plug and the socket, rotating the rotating head drives the bidirectional lead screw to rotate, which drives the two sets of moving plates to move the two sets of clamping plates closer to each other, so that the clamping plates clamp and limit the plug, thereby improving the stability of the plug connection and avoiding the loosening of the connection between the plug and the socket, which would lead to poor contact.
[0016] 2. The socket and the fixing ring are fixedly connected. The upper surface of the fixing ring has a slot. The plug and the alignment ring are fixedly connected. The alignment ring and the plug are fixedly connected. When using the plug to connect to the socket, the plug is aligned with the slot and inserted into the slot. This can realize the position alignment between the socket and the plug, prevent mis-insertion, and avoid damage or poor contact caused by reverse insertion. Attached Figure Description
[0017] Figure 1 This is a three-dimensional front view of the structure of this utility model;
[0018] Figure 2 This is a rear-view perspective view of the structure of this utility model;
[0019] Figure 3 This is a partial three-dimensional structural diagram of the plug and socket of this utility model;
[0020] Figure 4 This is a partial three-dimensional cross-sectional view of the clamping mechanism of this utility model;
[0021] Figure 5 This is a partial three-dimensional schematic diagram of the alignment mechanism of this utility model;
[0022] Figure 6 This is an exploded three-dimensional schematic diagram of the alignment mechanism of this utility model.
[0023] In the diagram: 1. Socket; 11. Plug; 2. Fixing block; 21. Limiting ring; 22. Two-way lead screw; 23. Rotating head; 24. Limiting plate; 25. Moving plate; 26. Connecting rod; 27. Clamping plate; 3. Fixing ring; 31. Slot; 32. Alignment ring; 33. Insertion block. 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] Please see Figure 1-6 One embodiment provided by this utility model:
[0026] A male-female plug-in connection structure includes:
[0027] The base includes a socket 1, and a plug 11 is provided on the upper surface of the socket 1. Both the socket 1 and the plug 11 are existing products and are not considered as technical protection points of this application. Therefore, they will not be described in detail here.
[0028] The clamping mechanism includes a fixing block 2, which is fixedly connected to the upper surface of the socket 1. A limit ring 21 is rotatably connected inside the fixing block 2. The fixing block 2 and the limit ring 21 limit the bidirectional lead screw 22, ensuring that the bidirectional lead screw 22 can only rotate in place. The surface of the limit ring 21 is fixedly connected to the bidirectional lead screw 22, which drives two sets of moving plates 25 to bring two sets of clamping plates 27 closer together, thus clamping and limiting the plug 11. This improves the stability of the plug 11 connection and prevents loosening between the plug 11 and the socket 1, which could lead to poor contact. One end of the bidirectional lead screw 22 is fixedly connected to a rotating head 23, which facilitates the user's rotation of the bidirectional lead screw 22. The other end of the bidirectional lead screw 22 is fixedly connected to a limit plate 24. The limiting plate 24 is used to limit the moving plate 25 and prevent the moving plate 25 from detaching from the bidirectional lead screw 22. The moving plate 25 is movably connected to the surface of the bidirectional lead screw 22. The moving plate 25 is used to drive the two sets of clamping plates 27 to move closer to each other, so that the clamping plates 27 clamp and limit the plug 11, thereby improving the stability of the plug 11 connection. The surface of the moving plate 25 is fixedly connected to the connecting rod 26, which is used to connect the moving plate 25 and the clamping plates 27. The end of the connecting rod 26 away from the moving plate 25 is fixedly connected to the clamping plate 27, which is used to clamp and limit the plug 11, thereby improving the stability of the plug 11 connection and preventing the connection between the plug 11 and the socket 1 from becoming loose and causing poor contact. This new type is suitable for sockets 1 with flat upper surfaces and cylindrical plugs 11.
[0029] Furthermore, the alignment mechanism includes a fixing ring 3 and an alignment ring 32. The fixing ring 3 is fixedly connected to the upper surface of the socket 1, and the alignment ring 32 is fixedly connected to the surface of the plug 11. The upper surface of the fixing ring 3 has a slot 31, and the lower surface of the alignment ring 32 has a plug block 33 fixedly connected. The fixing ring 3, the slot 31, the alignment ring 32, and the plug block 33 are used to determine the connection position of the plug 11, realize the alignment between the socket 1 and the plug 11, prevent mis-insertion, and avoid damage or poor contact caused by reverse insertion.
[0030] Furthermore, the limiting ring 21 is circular. The fixing block 2 and the limiting ring 21 are used to limit the bidirectional lead screw 22, so that the bidirectional lead screw 22 can only rotate in place. The bidirectional lead screw 22 is rotatably connected to the fixing block 2 through the limiting ring 21. The bidirectional lead screw 22 is used to drive the two sets of moving plates 25 to drive the two sets of clamping plates 27 to move closer to each other, so that the clamping plates 27 clamp and limit the plug 11, thereby improving the stability of the plug 11 connection and avoiding the loosening of the connection between the plug 11 and the socket 1, which would lead to poor contact.
[0031] Furthermore, the rotating head 23 is rotatably connected to the fixed block 2 via the bidirectional lead screw 22. The rotating head 23 is used to facilitate the user to rotate the bidirectional lead screw 22. The limiting plate 24 is rotatably connected to the fixed block 2 via the bidirectional lead screw 22. The limiting plate 24 is used to limit the movement plate 25 and prevent the movement plate 25 from disengaging from the bidirectional lead screw 22.
[0032] Furthermore, the movable plate 25 is distributed in two groups on the surface of the bidirectional lead screw 22. The side of the movable plate 25 closest to the socket 1 is in close contact with the surface of the socket 1. The movable plate 25 is slidably connected to the socket 1 through the bidirectional lead screw 22. The movable plate 25 is used to drive the two sets of clamping plates 27 to move closer to each other, so that the clamping plates 27 clamp and limit the plug 11, thereby improving the stability of the plug 11 connection.
[0033] Furthermore, the connecting rod 26 is used to connect the movable plate 25 and the clamping plate 27. The clamping plate 27 is in the shape of an arc plate. The clamping plate 27 is movably connected to the plug 11 through the movable plate 25 and the connecting rod 26. The clamping plate 27 is used to clamp and limit the plug 11, thereby improving the stability of the plug 11 connection and preventing the connection between the plug 11 and the socket 1 from becoming loose and causing poor contact.
[0034] Furthermore, both the fixing ring 3 and the alignment ring 32 are circular. The alignment ring 32 is movably connected to the fixing ring 3 via the plug 11, and the plug block 33 is movably connected to the slot 31 via the alignment ring 32. The fixing ring 3, slot 31, alignment ring 32, and plug block 33 are used to determine the connection position of the plug 11, realize the alignment between the socket 1 and the plug 11, prevent mis-insertion, and avoid damage or poor contact caused by reverse insertion.
[0035] Working principle: After connecting the plug 11 and the socket 1, rotating the rotating head 23 drives the bidirectional lead screw 22 to rotate, which in turn drives the two sets of moving plates 25 to move the two sets of clamping plates 27 closer to each other, so that the clamping plates 27 clamp and limit the plug 11, thereby improving the stability of the plug 11 connection and preventing the connection between the plug 11 and the socket 1 from becoming loose and causing poor contact.
[0036] When using plug 11 to connect socket 1, align plug 33 with slot 31 and insert plug 33 into slot 31. This will ensure that the socket 1 and plug 11 are aligned, preventing mis-insertion and avoiding damage or poor contact caused by reverse insertion.
[0037] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.
Claims
1. A male-female plug-in connection structure, characterized in that, include: The base includes a socket (1), and a plug (11) is provided on the upper surface of the socket (1); The clamping mechanism includes a fixed block (2), which is fixedly connected to the upper surface of the socket (1). A limiting ring (21) is rotatably connected inside the fixed block (2). A bidirectional lead screw (22) is fixedly connected to the surface of the limiting ring (21). A rotating head (23) is fixedly connected to one end of the bidirectional lead screw (22). A limiting plate (24) is fixedly connected to the other end of the bidirectional lead screw (22). A movable plate (25) is movably connected to the surface of the bidirectional lead screw (22). A connecting rod (26) is fixedly connected to the surface of the movable plate (25). A clamping plate (27) is fixedly connected to the end of the connecting rod (26) away from the movable plate (25).
2. The male-female plug-in connection structure according to claim 1, characterized in that: The alignment mechanism includes a fixing ring (3) and an alignment ring (32). The fixing ring (3) is fixedly connected to the upper surface of the socket (1), and the alignment ring (32) is fixedly connected to the surface of the plug (11). The upper surface of the fixing ring (3) is provided with a slot (31), and the lower surface of the alignment ring (32) is fixedly connected with a plug (33).
3. The male-female plug-in connection structure according to claim 1, characterized in that: The limiting ring (21) is circular, and the bidirectional lead screw (22) is rotatably connected to the limiting ring (21) and the fixing block (2).
4. The male-female plug-in connection structure according to claim 1, characterized in that: The rotating head (23) is rotatably connected to the fixed block (2) via a bidirectional lead screw (22), and the limiting plate (24) is rotatably connected to the fixed block (2) via a bidirectional lead screw (22).
5. The male-female plug-in connection structure according to claim 1, characterized in that: The movable plate (25) is distributed in two groups on the surface of the bidirectional lead screw (22). The movable plate (25) is close to the surface of the socket (1) on the side near the socket (1). The movable plate (25) is slidably connected to the socket (1) through the bidirectional lead screw (22).
6. The male-female plug-in connection structure according to claim 1, characterized in that: The clamp (27) is in the shape of an arc plate, and the clamp (27) is movably connected to the plug (11) through a movable plate (25) and a connecting rod (26).
7. The male-female plug-in connection structure according to claim 2, characterized in that: Both the fixing ring (3) and the alignment ring (32) are circular. The alignment ring (32) is movably connected to the fixing ring (3) via the plug (11), and the plug (33) is movably connected to the slot (31) via the alignment ring (32).