Cable plugging seat

By designing a cable plug-in and unplugging seat including a male seat, a female seat, an insulating sleeve and a seal, the problem of poor waterproof performance of existing cable plug-in and unplugging seats is solved, achieving higher waterproof performance and safer cable connections.

CN222896875UActive Publication Date: 2025-05-23JIANGSU ZHONGTIAN TECH CABLE ACCESSORIES CO LTD
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Patent Information

Application Number
CN202421593680.8
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-07-05
Publication Date
2025-05-23
Estimated Expiration
2034-07-05

AI Technical Summary

Technical Problem

The existing cable plug-in and unplugging seats have poor sealing and waterproof performance, which is prone to leakage, causing safety hazards.

Method used

A cable plug-in and unplugging seat including a seat, a female seat, an insulating sleeve and a seal is designed, and the seat insulation sleeve is threaded between the seat insulation sleeve and the female seat, and is arranged between the insulating sleeve through a sealing clip to achieve sealing and waterproof protection of the seat and the female seat.

Benefits of technology

It improves the waterproof performance of the cable plug-in and unplugging seats, eliminates the potential for leakage, and enhances the safety and reliability of cable connections.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of electricians, and provides a cable plugging seat, which comprises a male seat, a female seat, a male seat insulation sleeve, a female seat insulation sleeve and a sealing element, the female seat is used for being fixed on a shell of power equipment and electrically connected with a copper bar of the power equipment, the male seat is used for being electrically connected with a cable, the female seat insulation sleeve is fixedly sleeved on the female seat, and the sealing element is arranged on the female seat insulation sleeve. The male seat insulation sleeve is rotatably sleeved on the male seat, the male seat is inserted in the female seat, and the male seat insulation sleeve is in threaded connection with the female seat insulation sleeve; and along with the rotation of the male seat insulation sleeve, the sealing element is clamped between the male seat insulation sleeve and the female seat insulation sleeve. When power is used, the male seat is inserted into the female seat, so that electrification of power equipment and a cable can be realized, the male seat insulation sleeve and the female seat insulation sleeve are in threaded connection, and along with rotation of the male seat insulation sleeve, the sealing piece is clamped between the male seat insulation sleeve and the female seat insulation sleeve so as to block a gap between the male seat insulation sleeve and the female seat insulation sleeve, and the sealing piece is clamped between the male seat insulation sleeve and the female seat insulation sleeve. Therefore, the sealing waterproof protection of the male seat and the female seat is realized, and the waterproof performance of the cable plugging seat is improved.
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Description

Technical Field

[0001] The utility model relates to the technical field of electrical engineering, in particular to a cable plug-in socket. Background Art

[0002] As urban electricity load continues to increase, the power supply pressure of the power grid continues to increase, and the requirements for power reliability and power grid service quality are also constantly increasing.

[0003] At present, the distribution transformer is connected to the switch cabinet by an overhead insulated cable. The two ends of the cable are usually connected by copper terminals, which is not only inefficient but also prone to loosening, resulting in power supply abnormalities. Alternatively, cable plug sockets are mostly used to achieve electrical connection between cables and power equipment, but such cable plug sockets do not have good waterproof and moisture-proof functions, resulting in leakage of electricity from the cable plug sockets, causing safety hazards. Utility Model Content

[0004] The utility model provides a cable plug-in socket, which at least solves the problem of poor sealing and waterproof performance of the current cable plug-in socket.

[0005] The utility model provides a cable plug socket, comprising: a male socket, a female socket, a male socket insulating sleeve, a female socket insulating sleeve and a sealing member, wherein the female socket is used to be fixed on the shell of the power equipment and electrically connected to the copper busbar of the power equipment, the male socket is used to be electrically connected to the cable, the female socket insulating sleeve is fixedly sleeved on the female socket, the male socket insulating sleeve is rotatably sleeved on the male socket, the male socket is inserted into the female socket, and the male socket insulating sleeve and the female socket insulating sleeve are threadedly connected; as the male socket insulating sleeve rotates, the sealing member is clamped between the male socket insulating sleeve and the female socket insulating sleeve.

[0006] According to a cable plug-in socket provided by the utility model, it also includes a locking nut and a bolt. The female socket is provided with a connecting groove, the male socket is inserted into the connecting groove, the screw rod of the bolt is used to pass through the bottom of the connecting groove and the copper bar, the locking nut is threadedly connected to the screw rod, and the copper bar and the female socket are pressed onto the nut of the bolt.

[0007] According to a cable plug socket provided by the utility model, it also includes a connecting column, which is fixed to the nut. The end surface of the male seat facing the female seat is provided with a groove, and the connecting column is inserted into the groove.

[0008] According to a cable plug-in socket provided by the utility model, it also includes a spring, the outer side wall of the connecting column is provided with a protrusion, the groove wall of the groove is provided with a limiting groove, when the male seat and the female seat are in a locked state, the protrusion is inserted in the limiting groove, one end of the spring is connected to the bottom of the connecting groove, and the other end is connected to the end face of the male seat.

[0009] According to a cable plug socket provided by the utility model, the male socket has a limiting edge, the male socket insulating sleeve has a step hole, and the opposite sides of the limiting edge are respectively abutted against the notch of the connecting groove and the step surface on the step hole.

[0010] A cable plug socket provided by the utility model also includes a contact finger structure, and the contact finger structure is installed on the groove wall of the connecting groove.

[0011] According to a cable plug socket provided by the utility model, it also includes at least one sealing ring, the female socket has a through hole, the screw rod is passed through the through hole, and the sealing ring is used to seal the gap between the hole wall of the through hole and the screw rod.

[0012] According to a cable plug socket provided by the utility model, the outer wall of the female insulating sleeve has an external thread, the inner wall of the male insulating sleeve has an internal thread adapted to the external thread, and the male insulating sleeve and the female insulating sleeve are threadedly connected.

[0013] According to a cable plug-in socket provided by the utility model, the male socket has a slot for crimping the conductive end of the cable.

[0014] According to the utility model, a cable plug socket further comprises a cable gland, wherein the cable gland is used to be sleeved on the cable and sealedly connected to the male socket insulating sleeve.

[0015] The utility model provides a cable plug socket, which fixes the female socket on the shell of the power equipment and is electrically connected to the copper busbar of the power equipment, and the male socket is electrically connected to the cable; the female socket insulating sleeve is fixedly sleeved on the female socket to form physical protection for the female socket, and the male socket insulating sleeve can be rotatably sleeved on the male socket to form physical protection for the male socket, and the male socket is plugged into the female socket when electricity is used, so that the power equipment and the cable can be powered on, and the male socket insulating sleeve and the female socket insulating sleeve are threadedly connected. As the male socket insulating sleeve rotates, a sealing member is clamped between the male socket insulating sleeve and the female socket insulating sleeve to block the gap between the male socket insulating sleeve and the female socket insulating sleeve, thereby realizing sealed and waterproof protection for the male socket and the female socket, improving the waterproof performance of the cable plug socket, and eliminating the hidden danger of leakage of the cable plug socket. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the present invention or the prior art, a brief introduction will be given below to the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0017] Figure 1This is an overall cross-sectional view of the cable plug socket provided by the utility model;

[0018] Figure 2 It is a cross-sectional view of the female seat provided by the utility model;

[0019] Figure 3 It is a cross-sectional view of the connection between the male seat and the cable gland provided by the utility model;

[0020] Figure 4 It is a cross-sectional view of the connection between the male socket insulating sleeve and the cable gland provided by the utility model.

[0021] Reference numerals:

[0022] 1. Male seat; 11. Groove; 12. Limit edge; 13. Limit groove; 14. Card slot;

[0023] 2. Female seat; 21. Connecting groove; 22. Sealing ring; 23. Locking nut; 24. Bolt; 25. Connecting column; 251. Protrusion; 26. Spring; 27. Support ear; 271. Waterproof ring;

[0024] 3. Male socket insulation sleeve; 31. Step hole;

[0025] 4. Female seat insulation sleeve; 5. Seal; 6. Contact finger structure; 7. Cable gland;

[0026] 100. Power equipment; 101. Copper busbar; 200. Cable. DETAILED DESCRIPTION

[0027] In order to make the purpose, technical solution and advantages of the utility model clearer, the technical solution of the utility model will be described clearly and completely in conjunction with the drawings in the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0028] The term "first" or "second" in the specification and claims of the utility model may explicitly or implicitly include one or more of the features. In the description of the utility model, unless otherwise specified, "multiple" means two or more. In addition, "and / or" in the specification and claims means at least one of the connected objects, and the character " / " generally means that the related objects are in an "or" relationship.

[0029] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0030] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0031] Combine the following Figure 1-Figure 4 , through specific embodiments and application scenarios, a cable plug socket provided by an embodiment of the utility model is described in detail.

[0032] like Figure 1 As shown, the utility model provides a cable plug socket, including: a male socket 1, a female socket 2, a male socket insulating sleeve 3, a female socket insulating sleeve 4 and a sealing member 5. The female socket 2 is used to be fixed to the housing of the power equipment 100 and electrically connected to the copper bus 101 of the power equipment 100. The male socket 1 is used to be electrically connected to the cable 200. The female socket insulating sleeve 4 is fixedly sleeved on the female socket 2, and the male socket insulating sleeve 3 is rotatably sleeved on the male socket 1. The male socket 1 is inserted into the female socket 2. The male socket insulating sleeve 3 and the female socket insulating sleeve 4 are threadedly connected. As the male socket insulating sleeve 3 rotates, the sealing member 5 is clamped between the male socket insulating sleeve 3 and the female socket insulating sleeve 4.

[0033] It is understandable that the cable plug socket provided by the utility model can quickly and conveniently realize the electrical connection between the power equipment 100 and the cable 200. The power equipment 100 can be a transformer or a switch cabinet. Specifically, the female socket 2 is fixedly mounted on the housing of the power equipment 100 and is electrically connected to the copper bus 101 inside the power equipment 100. Figure 1 As shown, the female base 2 is groove-shaped. The female base 2 is sleeved with a female base insulating sleeve 4 on its exterior. The female base insulating sleeve 4 may be made of insulating materials such as rubber, silicone or plastic.

[0034] like Figure 1As shown, the outer wall of the female socket insulating sleeve 4 is provided with a support ear 27. A mounting hole is provided on the support ear 27. During assembly, the support ear 27 can be locked on the housing of the power device 100 by using fasteners such as screws, so as to fix the female socket insulating sleeve 4.

[0035] Furthermore, a receiving groove is provided on the support ear 27. The receiving groove is used to receive a waterproof ring 271. The waterproof ring 271 is sandwiched between the housing of the power device 100 and the groove wall of the receiving groove to form waterproof protection for the female socket 2.

[0036] like Figure 1 As shown, the male socket 1 is installed at the end of the cable 200 and is electrically connected to the cable 200. The male socket 1 is adapted to the female socket 2. The material of the male socket insulating sleeve 3 can be an insulating material such as rubber, silicone or plastic. The male socket 1 is inserted into the female socket 2 to achieve the electrical connection between the cable 200 and the power equipment 100. The outer sleeve of the male socket insulating sleeve 3 is connected with the male socket insulating sleeve 3. The aperture of the male socket insulating sleeve 3 is slightly larger than the outer diameter of the male socket 1, so that the male socket insulating sleeve 3 can rotate relative to the male socket 1.

[0037] Furthermore, if Figure 1 As shown, one end of the male insulating sleeve 3 is fixed to the cable 200, and the other end is overlapped with the female insulating sleeve 4. Specifically, the male insulating sleeve 3 and the female insulating sleeve 4 are threadedly connected. A seal 5 is provided at the connection gap between the male insulating sleeve 3 and the female insulating sleeve 4. The material of the seal 5 has excellent waterproof performance. Optionally, the seal 5 is a waterproof rubber ring.

[0038] As the male and female insulating sleeves 3 and 4 are tightened, the seal 5 is disposed between the male and female insulating sleeves 3 and 4, thereby achieving waterproof and sealing protection for the male and female sockets 1 and 2, avoiding the hidden danger of electric leakage, and improving the quality of safe electricity use.

[0039] The utility model provides a cable plug socket, which fixes a female socket 2 on the shell of an electric device 100 and electrically connects it to a copper bus 101 of the electric device 100, and electrically connects a male socket 1 to a cable 200; a female socket insulating sleeve 4 is fixedly sleeved on the female socket 2 so as to realize physical protection for the female socket 2, and a male socket insulating sleeve 3 is rotatably sleeved on the male socket 1 to form physical protection for the male socket 1. When electricity is used, the male socket 1 is plugged into the female socket 2 to realize power supply of the electric device 100 and the cable 200. The male socket insulating sleeve 3 and the female socket insulating sleeve 4 are threadedly connected. As the male socket insulating sleeve 3 rotates, a sealing member 5 is clamped between the male socket insulating sleeve 3 and the female socket insulating sleeve 4 to block a gap between the male socket insulating sleeve 3 and the female socket insulating sleeve 4, thereby realizing sealing and waterproof protection for the male socket 1 and the female socket 2, improving the waterproof performance of the cable plug socket, and eliminating the hidden danger of leakage of the cable plug socket.

[0040] In some embodiments, Figure 2As shown, the cable plug socket also includes a locking nut 23 and a bolt 24. The female socket 2 is provided with a connecting groove 21, the male socket 1 is inserted into the connecting groove 21, the screw of the bolt 24 is used to penetrate the bottom of the connecting groove 21 and the copper bar 101, the locking nut 23 is threadedly connected to the screw, and the copper bar 101 and the female socket 2 are pressed onto the nut of the bolt 24.

[0041] It is understandable that the notch of the connection groove 21 faces the male socket 1. The bottom of the connection groove 21 is located inside the power device 100. During assembly, the screw of the bolt 24 is sequentially inserted into the bottom of the connection groove 21 and the copper bar 101, and then the locking nut 23 is threadedly connected to the screw of the bolt 24. As the locking nut 23 is tightened, the copper bar 101 and the bottom of the connection groove 21 are tightly abutted, thereby achieving electrical connection between the copper bar 101 and the female socket 2.

[0042] In order to ensure the stability of the male socket 1 and the female socket 2 when plugged in, Figure 2 As shown, the cable plug socket further includes a connecting column 25. The connecting column 25 is fixed to the nut, and a groove 11 is provided on the end surface of the male socket 1 facing the female socket 2, and the connecting column 25 is inserted into the groove 11.

[0043] It is understandable that the axial direction of the connecting column 25 coincides with the extending direction of the connecting slot 21. The end of the connecting column 25 is fixed to the nut. Optionally, the nut and the connecting column 25 can be an integral connection structure.

[0044] like Figure 2 As shown, the end surface of the male socket 1 facing the female socket 2 is provided with a groove 11. The size of the groove 11 is adapted to the connection column 25. When the cable 200 and the power device 100 need to be electrically connected, the male socket 1 is inserted into the connection groove 21, and at the same time, the connection column 25 is inserted into the groove 11, thereby realizing the double connection of the male socket 1 and the female socket 2, ensuring the stability of the connection between the male socket 1 and the female socket 2.

[0045] like Figure 2 As shown, the cable plug socket also includes a spring 26. Figure 3 As shown, the outer wall of the connecting column 25 is provided with a protrusion 251, and the groove wall of the groove 11 is provided with a limiting groove 13. When the male seat 1 and the female seat 2 are in a locked state, the protrusion 251 is inserted into the limiting groove 13, one end of the spring 26 is connected to the bottom of the connecting groove 21, and the other end is connected to the end face of the male seat 1.

[0046] It is understandable that a limiting groove 13 is also provided on the groove wall of the groove 11. The protrusion 251 is fixed to the outer wall of the connecting column 25. Among them, the size of the groove 11 is slightly larger than the size of the connecting column 25. During assembly, the male seat 1 is rotated, the limiting groove 13 is aligned with the position of the protrusion 251, and the male seat 1 is inserted into the connecting groove 21; at the same time, the connecting column 25 is inserted into the groove 11, and the protrusion 251 is snapped into the limiting groove 13. Under the pressing force of the spring 26, the protrusion 251 and the groove wall of the limiting groove 13 are tightly abutted, thereby ensuring that the male seat 1 is not easy to slide off the female seat 2, thereby ensuring the stability of the connection between the male seat 1 and the female seat 2.

[0047] When the male socket 1 needs to be pulled out from the female socket 2 , the male socket 1 is rotated in the opposite direction and pushed forward to make the protrusion 251 slide out of the limiting groove 13 , and then the male socket 1 is taken out from the connecting groove 21 .

[0048] In some embodiments, Figure 3 As shown, the male socket 1 has a limiting edge 12. The male socket insulating sleeve 3 has a step hole 31, and the two opposite sides of the limiting edge 12 abut against the notch of the connecting groove 21 and the step surface on the step hole 31 respectively.

[0049] It is understandable that if Figure 3 As shown, the outer wall of the male socket 1 is provided with a convex ring to form a limiting edge 12. The male socket insulating sleeve 3 has a step hole 31. The limiting edge 12 is located in the small hole section of the step hole 31. The male socket 1 is inserted into the connecting groove 21, and the side of the limiting edge 12 close to the connecting groove 21 abuts against the notch of the connecting groove 21, and the side of the limiting edge 12 away from the connecting groove 21 abuts against the step surface of the step hole 31, so as to limit the male socket 1 and prevent the male socket 1 from sliding out of the connecting groove 21, thereby ensuring the stability of the power supply of the male socket 1 and the female socket 2.

[0050] Furthermore, if Figure 1 and Figure 2 As shown, the cable plug socket further includes a contact finger structure 6. The contact finger structure 6 is installed on the groove wall of the connection groove 21. The contact finger structure 6 extends along the circumferential direction of the groove wall of the connection groove 21. Installing the contact finger structure 6 on the groove wall of the connection groove 21 can ensure the power transmission effect of the female socket 2 to the male socket 1, thereby increasing the current carrying capacity of the cable plug socket.

[0051] Furthermore, if Figure 2 As shown, the cable plug socket further includes at least one sealing ring 22. The female socket 2 has a through hole, the screw rod is passed through the through hole, and the sealing ring 22 is used to seal the gap between the hole wall of the through hole and the screw rod.

[0052] It is understandable that the sealing ring 22 can be a waterproof rubber ring. A through hole is provided at the bottom of the connecting groove 21. The screw of the bolt 24 passes through the through hole and is threadedly connected to the locking nut 23. Optionally, a plurality of sealing grooves are provided on the outer wall of the screw. The plurality of sealing grooves are arranged at intervals along the axial direction of the screw. There are a plurality of sealing rings 22. The plurality of sealing rings 22 are clamped in the sealing grooves one by one and abut against the hole wall of the through hole to prevent water from entering the interior of the power equipment 100, thereby achieving sealing protection for the female seat 2 and the copper busbar 101. Optionally, the number of sealing rings 22 can be one, two, four, etc.

[0053] Specifically, the outer wall of the female insulating sleeve 4 has an external thread, the inner wall of the male insulating sleeve 3 has an internal thread adapted to the external thread, and the male insulating sleeve 3 and the female insulating sleeve 4 are threadedly connected.

[0054] It is understandable that the size of the male insulating sleeve 3 is slightly larger than that of the female insulating sleeve 4. The outer wall of the female insulating sleeve 4 is provided with an external thread between its end and the lug 27. The seal 5 is located on the outer wall of the female insulating sleeve 4. Correspondingly, the inner wall of the male insulating sleeve 3 is provided with an internal thread. The external thread and the internal thread are adapted.

[0055] During assembly, the male socket 1 is inserted into the female socket 2, and then the male socket insulating sleeve 3 is rotated to tighten the male socket insulating sleeve 3 onto the female socket insulating sleeve 4. Under the action of the male socket insulating sleeve 3, the seal 5 is pressed against the connection between the outer wall of the female socket insulating sleeve 4 and the support ear 27, thereby achieving the sealing and waterproof protection of the female socket 2 and the male socket 1 by the female socket insulating sleeve 4, the seal 5 and the male socket insulating sleeve 3, and eliminating the hidden danger of leakage.

[0056] In some embodiments, Figure 3 As shown, the male socket 1 has a slot 14 for crimping a conductive terminal of a cable 200 .

[0057] It is understandable that the slot 14 faces the cable 200. The shape and size of the slot 14 are adapted to the conductive end of the cable 200.

[0058] When the conductive end of the cable 200 is inserted into the slot 14 , the axial direction of the conductive end of the cable 200 is aligned with the extending direction of the slot 14 , and then the slot 14 is crimped onto the conductive end of the cable 200 .

[0059] By providing the clamping groove 14 on the male socket 1, it can be conveniently crimped with the conductive end of the cable 200, thereby achieving the stability of the electrical connection between the male socket 1 and the cable 200.

[0060] Furthermore, if Figure 4 As shown, the cable plug socket also includes a cable gland 7. The cable gland 7 is used to be sleeved on the cable 200 and is sealed and connected to the male socket insulating sleeve 3.

[0061] It is understandable that the main function of the cable gland 7 is to fasten and seal the male socket insulating sleeve 3 and the cable 200 together. By putting the cable gland 7 on the cable 200 and locking the cable 200, the cable 200 does not produce axial displacement and radial rotation, thereby ensuring the normal connection of the cable 200. Further, the cable gland 7 and the male socket insulating sleeve 3 are sealed and connected, thereby realizing the sealing and waterproof protection of the male socket insulating sleeve 3 and the cable gland 7 to the cable 200. In addition, a sealing ring 22 can also be set at the gap between the cable gland 7 and the male socket insulating sleeve 3 to further ensure the waterproof performance of the cable plug socket.

[0062] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the utility model.

Claims

1. A cable plug socket, characterized in that: include: A male socket, a female socket, a male socket insulating sleeve, a female socket insulating sleeve and a sealing member, wherein the female socket is used to be fixed on the casing of the power equipment and electrically connected to the copper busbar of the power equipment, the male socket is used to be electrically connected to the cable, the female socket insulating sleeve is fixedly sleeved on the female socket, the male socket insulating sleeve is rotatably sleeved on the male socket, the male socket is inserted into the female socket, and the male socket insulating sleeve and the female socket insulating sleeve are threadedly connected; as the male socket insulating sleeve rotates, the sealing member is clamped between the male socket insulating sleeve and the female socket insulating sleeve.

2. The cable plug socket according to claim 1, characterized in that: It also includes a locking nut and a bolt. The female seat is provided with a connecting groove, the male seat is inserted into the connecting groove, the screw rod of the bolt is used to pass through the bottom of the connecting groove and the copper bar, the locking nut is threadedly connected to the screw rod, and the copper bar and the female seat are pressed onto the nut of the bolt.

3. The cable plug socket according to claim 2, characterized in that: It also includes a connecting column, which is fixed to the nut. The end surface of the male seat facing the female seat is provided with a groove, and the connecting column is inserted into the groove.

4. The cable plug socket according to claim 3, characterized in that: It also includes a spring, the outer side wall of the connecting column is provided with a protrusion, the groove wall of the groove is provided with a limiting groove, when the male seat and the female seat are in a locked state, the protrusion is inserted into the limiting groove, one end of the spring is connected to the bottom of the connecting groove, and the other end is connected to the end face of the male seat.

5. The cable plug socket according to claim 3, characterized in that: The male seat has a limiting edge, and the male seat insulating sleeve has a step hole. The opposite sides of the limiting edge are respectively in contact with the notch of the connecting groove and the step surface on the step hole.

6. The cable plug socket according to claim 2, characterized in that: It also includes a finger structure, which is installed on the groove wall of the connecting groove.

7. The cable plug socket according to claim 2, characterized in that: It also includes at least one sealing ring. The female seat has a through hole. The screw rod is inserted into the through hole. The sealing ring is used to seal the gap between the hole wall of the through hole and the screw rod.

8. The cable plug socket according to claim 1, characterized in that: The outer wall of the female insulating sleeve has an external thread, the inner wall of the male insulating sleeve has an internal thread matched with the external thread, and the male insulating sleeve and the female insulating sleeve are threadedly connected.

9. The cable plug socket according to claim 1, characterized in that: The male seat has a slot for crimping the conductive end of the cable.

10. The cable plug socket according to claim 1, characterized in that: It also includes a cable gland, which is used to be sleeved on the cable and sealed with the male socket insulating sleeve.