Waterproof male and female plug with high sealing property
By using an anti-detachment sealing mechanism, which combines an O-ring and a limiting plate, the problem of male and female plugs easily detaching under external force is solved, thus improving the sealing and waterproof performance.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHENZHEN BETT ELECTRONIC CO LTD
- Filing Date
- 2025-04-21
- Publication Date
- 2026-05-29
AI Technical Summary
Existing male and female plugs are prone to displacement, separation, and detachment under external force, resulting in reduced sealing and affecting waterproofing performance.
An anti-detachment sealing mechanism is adopted, including an O-ring, a connecting ring, an arc-shaped rotating plate, a fixing rod, a compression spring, and an L-shaped limiting plate. By squeezing the O-ring and the limiting plate, the female plug and the male plug are tightly connected to prevent detachment.
It improves the connection strength of the female and male plugs, prevents displacement and detachment, maintains sealing, ensures uniform pressure of the sealing structure on the contact surface, and enhances sealing and waterproof performance.
Smart Images
Figure CN224304985U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of plug technology, and in particular to a highly sealed waterproof male and female plug. Background Technology
[0002] Male and female plugs are two types of matching interfaces used in electrical connections to achieve circuit connection and disconnection. The male plug has protruding conductive pins or prongs, whose shape and size are designed according to specific standards (such as national standards, European standards, etc.) for insertion into corresponding interfaces. The female plug contains a matching socket and is equipped with flexible conductive contacts inside. When the male plug is inserted, a stable electrical connection is formed through physical contact, ensuring current transmission. Both are widely used in power sockets, electronic device interfaces, cable connections, and other fields. Their standardized design enables quick and safe connections between devices while preventing the risk of mis-insertion or short circuits.
[0003] In the prior art, there is a Chinese utility model patent with publication number "CN217768909U" and patent name "A High-Sealing Waterproof Male and Female Plug". This patent describes a technical solution that includes "a male plug housing, a female plug housing and a circular groove, the end of the male plug housing is attached to the female plug housing, and both the end of the male plug housing away from the female plug housing and the end of the female plug housing away from the male plug housing are constructed with circular grooves, and an inlet wire extending into the interior of the male plug housing is passed through the circular groove of the male plug housing, and an outlet wire extending into the interior of the female plug housing is passed through the circular groove of the female plug housing".
[0004] However, in actual use, although the male and female plugs have a high sealing performance after the male and female plug shells are fitted together due to the insulating seat, insulating sleeve, annular groove and annular protrusion, the male and female plugs are only connected by plugging and lack anti-detachment measures. Therefore, when subjected to external forces such as pulling or vibration, the male and female plugs are prone to displacement, separation and detachment. This reduces the sealing performance after the male and female plugs are connected and causes gaps in the originally tightly fitted sealing structure. These gaps will disrupt the compression state of the seal and prevent the sealing material from maintaining uniform pressure on the contact surface, thereby reducing the sealing and waterproofing effect when the male and female plugs are connected.
[0005] Therefore, in order to solve the above-mentioned technical problems, this utility model proposes a highly sealing waterproof male and female plug. Utility Model Content
[0006] The main objective of this invention is to provide a highly sealed and waterproof male and female plug, which can effectively solve the problems in the background art.
[0007] To achieve the above objectives, the technical solution adopted by this utility model is as follows:
[0008] A highly leak-proof waterproof male and female plug includes a female plug and a male plug, which are inserted together. The external parts of the female and male plugs are equipped with an anti-detachment sealing mechanism, which includes an O-ring, a connecting ring, an arc-shaped rotating plate, a fixing rod, a compression spring, and an L-shaped limiting plate. The O-ring is fitted onto the outer wall of the right side ring of the female plug. The connecting ring is fixedly connected to the outside of the male plug, and a set of symmetrical arc-shaped rotating plates is movably connected to the side wall of the connecting ring. The fixing rod is fixedly connected to the inside of the side wall of the arc-shaped rotating plate, and the compression spring is fitted onto the outside of the fixing rod. The L-shaped limiting plate is fixedly connected to the outer end of the compression spring and movably connected to the fixing rod through a connecting hole on the top surface of the transverse part.
[0009] Furthermore, a side ring is fixedly installed on the right side wall of the female plug, and an annular groove is formed on the outer wall of the side ring. An O-ring is embedded in the groove of the annular groove. A pressure ring is fixedly installed on the left side wall of the male plug, and the inner diameter of the pressure ring is smaller than the diameter of the O-ring.
[0010] Furthermore, a fixing ring is fixedly installed on the outer wall of the female plug, and a vertical connection port is opened on the outer wall of the fixing ring. A horizontal arc-shaped opening communicating with the connection port is opened on the outer wall of the fixing ring, and a vertically communicating bayonet is also opened inside the arc-shaped opening. The length of the bayonet is less than the length of the connection port.
[0011] Furthermore, the connecting ring is fixedly installed on the outer wall of the male plug, and a set of symmetrical arc-shaped rotating openings are provided on the side wall of the connecting ring. Arc-shaped grooves are respectively provided on the top and bottom surfaces of the arc-shaped rotating openings.
[0012] Furthermore, the top and bottom surfaces of the arc-shaped rotating plate are respectively fixedly installed with arc-shaped slide bars, and the arc-shaped slide bars are movably installed in the arc-shaped slide groove. The side wall of the arc-shaped rotating plate is also provided with an opening for movement.
[0013] Furthermore, the fixing rod is fixedly installed inside the movable opening, and a compression spring is fitted on the outside of the fixing rod. The inner end of the compression spring is fixedly installed together with the bottom surface of the movable opening, and an L-shaped limiting plate is fixedly installed on the top of the compression spring. A connecting hole is opened on the top surface of the horizontal part of the L-shaped limiting plate, and the L-shaped limiting plate is movably installed together with the fixing rod through the connecting hole.
[0014] Compared with the prior art, the present invention has the following beneficial effects:
[0015] In this invention, the anti-detachment sealing mechanism works in conjunction with the female and male plugs. After the female and male plugs are inserted, the pressure ring on the male plug will squeeze the O-ring seal ring fitted inside the annular groove on the outer wall of the side ring. The O-ring seal ring, after being squeezed, will undergo elastic deformation and tightly adhere to the annular inner wall of the pressure ring. This ensures the sealing performance of the female and male plugs after connection. Simultaneously, pressing the symmetrical L-shaped limiting plates in opposite directions and rotating them counterclockwise causes the arc-shaped rotating plate to rotate within the arc-shaped rotating opening. This, in turn, moves the L-shaped limiting plates within the arc-shaped transverse opening. Releasing the pressure on the L-shaped limiting plates allows the compression spring to push the L-shaped limiting plates along the... The connecting hole moves outward, placing the horizontal part of the L-shaped limiting plate inside the bayonet and the vertical part of the L-shaped limiting plate on the left side wall of the side ring. Therefore, after the female and male plugs are connected, they can be further connected and fixed together, thereby improving the connection strength between the male and female plugs and preventing displacement, separation, and detachment of the male and female plugs under external force. This provides protection against detachment after connection, ensuring a tight fit between the female and male plugs, preventing gaps in the sealing structure, ensuring uniform pressure of the sealing structure on the contact surface, and ultimately improving the sealing and waterproof performance of the male and female plugs during use. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0017] Figure 2 This is a schematic diagram of the overall structure of the female plug of this utility model;
[0018] Figure 3 This is a schematic diagram of the overall structure of the anti-detachment sealing mechanism of this utility model;
[0019] Figure 4 This is a structural breakdown diagram of the anti-detachment sealing mechanism of this utility model.
[0020] In the diagram: 1. Female plug; 2. Male plug; 3. Anti-detachment sealing mechanism; 4. Side ring; 5. Annular groove; 6. O-ring seal; 7. Fixing ring; 8. Connection port; 9. Arc-shaped transverse opening; 10. Bayonet; 11. Pressure ring; 12. Connecting ring; 13. Arc-shaped rotating opening; 14. Arc-shaped slide groove; 15. Arc-shaped rotating plate; 16. Movable opening; 17. Arc-shaped slide bar; 18. Fixing rod; 19. Compression spring; 20. L-shaped limiting plate; 21. Connection hole. Detailed Implementation
[0021] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.
[0022] like Figure 1 - Figure 4 As shown, a highly sealed waterproof male and female plug includes a female plug 1 and a male plug 2, which are plugged together. The female plug 1 and male plug 2 are provided with an anti-detachment sealing mechanism 3 on the outside. The anti-detachment sealing mechanism 3 includes an O-ring seal 6, a connecting ring 12, an arc-shaped rotating plate 15, a fixing rod 18, a compression spring 19, and an L-shaped limiting plate 20. The O-ring seal 6 is sleeved on the outer wall of the right side ring 4 of the female plug 1. The connecting ring 12 is fixedly connected to the outside of the male plug 2. A set of symmetrical arc-shaped rotating plates 15 are also movably connected to the side wall of the connecting ring 12. The fixing rod 18 is fixedly connected to the side wall of the arc-shaped rotating plate 15. The compression spring 19 is sleeved on the outside of the fixing rod 18. The L-shaped limiting plate 20 is fixedly connected to the outer end of the compression spring 19 and is movably connected to the fixing rod 18 through the connecting hole 21 on the top surface of the transverse part.
[0023] like Figure 2 and Figure 3 As shown, a side ring 4 is fixedly installed on the right side wall of the female plug 1, and an annular groove 5 is provided on the outer wall of the side ring 4. An O-ring 6 is embedded in the groove of the annular groove 5. A pressure ring 11 is fixedly installed on the left side wall of the male plug 2, and the inner ring diameter of the pressure ring 11 is smaller than the diameter of the O-ring 6. After the female plug 1 and the male plug 2 are connected, because the inner ring diameter of the pressure ring 11 is smaller than the diameter of the O-ring 6, the pressure ring 11 can squeeze the O-ring 6 embedded in the annular groove 5 on the outer wall of the side ring 4, so that the O-ring 6 undergoes elastic deformation and tightly adheres to the inner ring wall of the pressure ring 11, thereby achieving a seal after the female plug 1 and the male plug 2 are connected.
[0024] like Figure 2 As shown, a fixing ring 7 is fixedly installed on the outer wall of the female plug 1, and a vertical connection port 8 is opened on the outer wall of the fixing ring 7. The connection port 8 can ensure that the L-shaped limiting plate 20 enters the arc-shaped horizontal port 9. A horizontal arc-shaped horizontal port 9 communicating with the connection port 8 is opened on the outer wall of the fixing ring 7. The arc-shaped horizontal port 9 can ensure that the L-shaped limiting plate 20 moves into the bayonet 10. A vertically communicating bayonet 10 is also opened inside the arc-shaped horizontal port 9. The length of the bayonet 10 is less than the length of the connection port 8. The L-shaped limiting plate 20 can be limited through the bayonet 10.
[0025] like Figure 3 and Figure 4 As shown, the connecting ring 12 is fixedly installed on the outer wall of the male plug 2, and a set of symmetrical arc-shaped rotating openings 13 are provided on the side wall of the connecting ring 12. Arc-shaped sliding grooves 14 are respectively provided on the top and bottom surfaces of the arc-shaped rotating openings 13. The arc-shaped sliding grooves 14 can cooperate with the arc-shaped sliding strips 17 to make the arc-shaped rotating plate 15 rotate in the arc-shaped rotating openings 13.
[0026] like Figure 3 and Figure 4 As shown, the top and bottom surfaces of the arc-shaped rotating plate 15 are respectively fixedly installed with arc-shaped slide bars 17, and the arc-shaped slide bars 17 are movably installed in the arc-shaped slide groove 14. The side wall of the arc-shaped rotating plate 15 is also provided with a movable opening 16. When the arc-shaped rotating plate 15 rotates in the arc-shaped rotating opening 13, it can drive the arc-shaped slide bars 17 to slide in the arc-shaped slide groove 14, and make the lateral part of the L-shaped limiting plate 20 enter from the connecting opening 8 into the arc-shaped lateral opening 9 and move in the arc-shaped lateral opening 9.
[0027] like Figure 3 and Figure 4 As shown, the fixing rod 18 is fixedly installed inside the movable opening 16, and a compression spring 19 is fitted on the outside of the fixing rod 18. The inner end of the compression spring 19 is fixedly installed with the bottom surface of the movable opening 16, and an L-shaped limiting plate 20 is fixedly installed on the top of the compression spring 19. A connecting hole 21 is opened on the top surface of the horizontal part of the L-shaped limiting plate 20, and the L-shaped limiting plate 20 is movably installed with the fixing rod 18 through the connecting hole 21. Under the elastic force of the compression spring 19, the L-shaped limiting plate 20 is pushed to move through the connecting hole 21 along the fixing rod 18 in the movable opening 16, and the horizontal part of the L-shaped limiting plate 20 is placed in the bayonet 10, and the vertical part of the L-shaped limiting plate 20 is placed on the left side of the side ring 4. This can play a role in preventing the female plug 1 and the male plug 2 from falling off after they are connected, and prevent the female plug 1 and the male plug 2 from being displaced or separated by external force after they are connected, which would reduce the sealing performance of the female plug 1 and the male plug 2 after they are connected.
[0028] The specific operating principle of the anti-detachment sealing mechanism 3 in conjunction with the female plug 1 and male plug 2 is as follows:
[0029] Before connecting the female plug 1 and male plug 2, the O-ring 6 is nested into the annular groove 5 on the outer wall of the side ring 4 installed on the right side of the female plug 1. The annular groove 5 prevents the O-ring 6 from shifting during use. When the female plug 1 and male plug 2 are connected, the pressure ring 11 installed on the left side of the male plug 2 will compress the O-ring 6 fitted on the outer wall of the side ring 4. Because the inner ring diameter of the pressure ring 11 is smaller than the diameter of the O-ring 6, the O-ring 6 will undergo elastic deformation after being compressed. Through the reverse elastic deformation force, the O-ring 6 will be tightly attached to the inner ring wall of the pressure ring 11. Therefore, the female plug 1 can be tightly fitted into the side ring 4. The connection between the male plug 1 and the female plug 2 after insertion effectively seals the joint. Simultaneously, the left end of the L-shaped limiting plate 20 passes through the connection port 8 on the side wall of the fixing ring 7 installed on the outer wall of the female plug 1. At this point, pressing the symmetrical L-shaped limiting plates 20 in opposite directions causes them to move inward through the connection hole 21 on the top surface, along the movable opening 16 on the side wall of the arc-shaped rotating plate 15 of the fixing rod 18. This forces the compression spring 19 mounted on the fixing rod 18 to retract until the left end of the L-shaped limiting plate 20 can no longer move within the connection port 8. The pressing force on the L-shaped limiting plate 20 remains constant. The L-shaped limiting plate 20 rotates the arc-shaped rotating plate 15 counterclockwise. The arc-shaped rotating plate 15 rotates within the arc-shaped rotating opening 13 on the side wall of the connecting ring 12 installed on the outer wall of the male plug 2. The arc-shaped sliding strips 17 installed on the top and bottom surfaces of the arc-shaped rotating plate 15 slide within the arc-shaped sliding grooves 14 on the top and bottom surfaces of the arc-shaped rotating opening 13. The lateral part of the L-shaped limiting plate 20 moves within the arc-shaped lateral opening 9 until the arc-shaped rotating plate 15 can no longer be rotated. Then, the pressure on the L-shaped limiting plate 20 is released, and the compression spring 19 will elastically extend and push the L-shaped limiting plate 20 to move outward, so that the L-shaped limiting plate 20... The horizontal part enters into the bayonet 10, and the vertical part of the L-shaped limiting plate 20 is placed on the left side of the side ring 4. In this way, the female plug 1 and the male plug 2 can be further connected and fixed together, thereby improving the connection strength between the male and female plugs and preventing the male and female plugs from shifting, separating and falling off under the action of external force. This provides protection against falling off after the female plug 1 and the male plug 2 are connected, ensuring that the female plug and the male plug are kept in close contact, preventing gaps between the O-ring seal 6 and the pressure ring 11, ensuring uniform pressure of the O-ring seal 6 on the contact surface of the pressure ring 11, and thus improving the sealing and waterproof performance when the male and female plugs are connected.
[0030] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.
Claims
1. A highly sealed waterproof male and female plug, comprising a female plug (1) and a male plug (2), wherein the female plug (1) and the male plug (2) are inserted together, characterized in that: The female plug (1) and male plug (2) are provided with an anti-detachment sealing mechanism (3), and the anti-detachment sealing mechanism (3) includes an O-ring (6), a connecting ring (12), an arc-shaped rotating plate (15), a fixing rod (18), a compression spring (19) and an L-shaped limiting plate (20). The O-ring (6) is sleeved on the outer wall of the right side ring (4) of the female plug (1). The connecting ring (12) is fixedly connected to the outside of the male plug (2), and a set of symmetrical arc-shaped rotating plates (15) is movably connected to the side wall of the connecting ring (12). The fixing rod (18) is fixedly connected to the inside of the side wall of the arc-shaped rotating plate (15), and the compression spring (19) is sleeved on the outside of the fixing rod (18). The L-shaped limiting plate (20) is fixedly connected to the outer end of the compression spring (19) and is movably connected to the fixing rod (18) through the connecting hole (21) on the top surface of the transverse part.
2. The high-sealing waterproof male and female plug according to claim 1, characterized in that: A side ring (4) is fixedly installed on the right side wall of the female plug (1), and an annular groove (5) is provided on the outer wall of the side ring (4). An O-ring (6) is embedded in the groove of the annular groove (5). A pressure ring (11) is fixedly installed on the left side wall of the male plug (2), and the inner ring diameter of the pressure ring (11) is smaller than the diameter of the O-ring (6).
3. A high-sealing waterproof male and female plug according to claim 2, characterized in that: A fixing ring (7) is fixedly installed on the outer wall of the female plug (1), and a vertical connection port (8) is opened on the outer wall of the fixing ring (7). A horizontal arc-shaped opening (9) communicating with the connection port (8) is opened on the outer wall of the fixing ring (7), and a vertically communicating bayonet (10) is also opened inside the arc-shaped opening (9). The length of the bayonet (10) is less than the length of the connection port (8).
4. A high-sealing waterproof male and female plug according to claim 3, characterized in that: The connecting ring (12) is fixedly installed on the outer wall of the male plug (2), and a set of symmetrical arc-shaped rotating openings (13) are provided on the side wall of the connecting ring (12). Arc-shaped grooves (14) are provided on the top and bottom surfaces of the arc-shaped rotating openings (13).
5. A high-sealing waterproof male and female plug according to claim 4, characterized in that: The top and bottom surfaces of the arc-shaped rotating plate (15) are respectively fixedly installed with arc-shaped slide bars (17), and the arc-shaped slide bars (17) are movably installed in the arc-shaped slide groove (14). The side wall of the arc-shaped rotating plate (15) is also provided with an opening (16).
6. A high-sealing waterproof male and female plug according to claim 5, characterized in that: The fixed rod (18) is fixedly installed inside the movable opening (16), and a compression spring (19) is fitted on the outside of the fixed rod (18). The inner end of the compression spring (19) is fixedly installed together with the bottom surface of the movable opening (16), and an L-shaped limiting plate (20) is fixedly installed on the top of the compression spring (19). A connecting hole (21) is opened on the top surface of the horizontal part of the L-shaped limiting plate (20), and the L-shaped limiting plate (20) is movably installed together with the fixed rod (18) through the connecting hole (21).