Special plug for preventing poor contact

By using a limiting block design for the plug housing and insulator, the problems of loosening, falling off, and being non-removable in traditional plugs are solved, achieving a stable connection and convenient maintenance, and improving the safety and maintainability of the plug.

CN223871765UActive Publication Date: 2026-02-03JIANGSU BAREP INTELLIGENCE TECH CO LTD
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Patent Information

Application Number
CN202520358110.9
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-04
Publication Date
2026-02-03
Estimated Expiration
2035-03-04

AI Technical Summary

Technical Problem

Traditional household plugs lack adaptability and locking mechanisms, making them prone to loosening or falling off, resulting in poor contact. Furthermore, their non-removability leads to resource waste and safety hazards.

Method used

The plug features a plug housing and plug insulator design, with multiple positioning points formed by limit blocks and screws to secure the plug. The detachable structure facilitates maintenance.

Benefits of technology

It improves the stability of the connection between the plug and the socket, avoids poor contact, reduces resource waste and safety hazards, and enhances the user experience.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a special plug for preventing poor contact, which comprises a plug shell, a fixed stud arranged in the plug shell, and a plurality of limiting blocks and a plurality of limiting grooves arranged on the fixed stud; the plug insulator is provided with a plurality of insulation limiting blocks, a contact pin connecting groove and a conductive fixing assembly, a first screw penetrates through the plug insulator to be connected to the fixing stud, the insulation limiting blocks are correspondingly clamped in the limiting grooves, the plug insulator is provided with an abutting groove, and the contact pin connecting groove is clamped in the abutting groove. The abutting groove is located among the plurality of insulating limiting blocks, and a circular groove is formed in the abutting groove; and the cable limiting shell is connected to the top of the plug shell. According to the structure of the utility model, the special plug is plugged in the socket, a plurality of positioning points exist, through cooperation with the special socket, poor contact caused by easy separation of the plug from the socket or frequent pulling out of the plug and influence on power-on use are avoided, and at the same time, the plug insulator and the plug housing can be disassembled by loosening the first screw.
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Description

TECHNICAL FIELD

[0001] The utility model belongs to plug technical field especially relates to a special plug of preventing bad contact. BACKGROUND

[0002] With the increasing of modern household electrical equipment, the household special plug as the connection medium between the electrical equipment and the power supply is self-evident. However, the traditional household plug design exposes a series of problems in the use process, especially in the connection stability and maintainability of the plug and the socket.

[0003] On the one hand, there are many kinds of household electrical appliances, and different electrical appliances have different requirements for plugs. The traditional plug design often lacks sufficient adaptability and locking mechanism, which causes the plug to loosen or fall off during plugging and unplugging, which not only affects the normal use of the electrical appliance, but also may cause safety hazards; especially in some electrical appliances that need continuous power supply, such as routers, computers, etc., frequent falling off of the plug may cause data loss or damage to the equipment.

[0004] On the other hand, the household plug is easily affected by various factors during use, such as wear, aging, dust accumulation, etc., which will cause poor contact between the plug and the socket, and further affect the power supply stability and safety of the electrical appliance; the traditional plug design is often difficult to disassemble and maintain, once it fails, the user often needs to buy the entire plug to replace it, which not only increases the use cost, but also causes resource waste. CONTENT OF THE UTILITY MODEL

[0005] The utility model aims at: in order to solve the traditional plug cannot easily loosen or fall off, causing poor contact of the plug, affecting power-on use, and the traditional plug cannot be disassembled, once damaged, it needs to be replaced entirely, causing resource waste, and proposes a special plug for preventing bad contact.

[0006] In order to achieve the above purpose, the utility model adopts the following technical scheme: a special plug for preventing bad contact, comprising:

[0007] The plug shell is provided with a fixed stud, a plurality of limiting blocks and a plurality of limiting grooves are arranged on the plug shell;

[0008] The plug insulator is provided with a plurality of insulating limiting blocks, a pin connecting groove and a conductive fixing assembly, a first screw is connected to the fixed stud through the plug insulator, the insulating limiting blocks are correspondingly clamped in the limiting grooves, the plug insulator is provided with an abutting groove, the abutting groove is located between the plurality of insulating limiting blocks, and a circular groove is arranged in the abutting groove;

[0009] And the cable limiting shell is connected to the top of the plug shell.

[0010] As a further description of the above technical solution:

[0011] The pin passes through the plug insulator, the tail of the pin is connected to the pin connection groove, the second screw passes through the pin and is connected to the pin connection groove, and the wire is located between the pin and the second screw.

[0012] As a further description of the above technical solution:

[0013] The plug housing has a wire groove inside, and the top of the plug housing has an external thread. The cable limiting shell is screwed onto the external thread, and the wire extends from the wire groove and passes through the cable limiting shell.

[0014] As a further description of the above technical solution:

[0015] The conductive fixing assembly includes an insulating plate and a plurality of third screws. A fixing plate is provided at the bottom of the insulating plate. The third screws pass through the insulating plate and are connected to the fixing plate. The wire extends from the second screw, wraps around the third screw, and is located between the insulating plate and the fixing plate.

[0016] As a further description of the above technical solution:

[0017] The limiting groove is provided with a Z-shaped guide groove, and the bottom of the insulating limiting block is provided with a guide block. The guide block and the Z-shaped guide groove are matched with each other.

[0018] As a further description of the above technical solution:

[0019] The insulating limiting block forms a positioning groove on the plug housing.

[0020] In summary, due to the adoption of the above technical solution, the beneficial effects of this utility model are:

[0021] 1. In this utility model, by setting a plug housing and a plug insulator, the plug housing and the plug insulator are connected by a first screw. The first screw passes through a countersunk hole in the plug insulator and connects to a fixing stud in the plug housing. The insulating limiting block forms a positioning groove on the plug housing. Several limiting blocks are provided on the plug housing. An abutment groove is provided on the plug insulator. The abutment groove is located between several insulating limiting blocks. A circular groove is provided in the abutment groove. Several positioning grooves are arranged diagonally on the plug housing. Several limiting blocks are arranged diagonally on the plug housing. The positioning grooves and limiting blocks are arranged intersectingly. This structure allows the special plug to be inserted into the socket with multiple positioning points. By cooperating with the special socket, it avoids the plug from easily detaching from the socket or being frequently pulled out, which would lead to poor contact and affect the power supply.

[0022] 2. In this utility model, the plug insulator and plug housing can be disassembled by loosening the first screw, which facilitates the replacement of new parts or the testing of the circuit and improves the user experience. Attached Figure Description

[0023] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0024] Figure 1 This is a 3D diagram of a special plug designed to prevent poor contact.

[0025] Figure 2 Disassembly of a special plug designed to prevent poor contact Figure One .

[0026] Figure 3 Disassembly of a special plug designed to prevent poor contact Figure Two .

[0027] Figure 4 Disassembly of a special plug designed to prevent poor contact Figure Three .

[0028] Figure 5 Disassembly of a special plug designed to prevent poor contact Figure Four .

[0029] Legend:

[0030] 1-Plug housing; 2-Fixing stud; 3-Limiting block; 4-Limiting groove; 5-Plug insulator; 6-Insulating limiting block; 7-Pin connecting groove; 8-Conductive fixing assembly; 81-Insulating plate; 82-Third screw; 9-First screw; 10-Cable limiting shell; 11-Pin; 12-Second screw; 13-Wire groove; 14-External thread; 15-Abutment groove; 16-Round groove; 17-Z-shaped guide groove; 18-Guide block; 19-Positioning groove; 20-Fixing plate. Detailed Implementation

[0031] 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 skilled in the art without creative effort are within the protection scope of the present utility model.

[0032] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0033] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0034] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0035] In the description of the embodiments of this utility model, it should be noted that the terms "upper" and "inner" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship in which the utility model product is usually placed when in use. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0036] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0037] Please see Figures 1-5 This utility model provides a technical solution: a special plug for preventing poor contact, comprising:

[0038] The plug housing 1 has a fixing stud 2 inside, and several limiting blocks 3 and several limiting grooves 4 are provided on it;

[0039] The plug insulator 5 is provided with a plurality of insulating limiting blocks 6, a pin connecting groove 7 and a conductive fixing component 8. A first screw 9 passes through the plug insulator 5 and is connected to the fixing stud 2. The insulating limiting blocks 6 are correspondingly engaged in the limiting groove 4. The plug insulator 5 is provided with an abutment groove 15, which is located between the plurality of insulating limiting blocks 6. A circular groove 16 is provided in the abutment groove 15.

[0040] And cable limiting housing 10, which is connected to the top of the plug housing 1.

[0041] The pin 11 passes through the plug insulator 5, and the tail of the pin 11 is connected to the pin connection groove 7. The second screw 12 passes through the pin 11 and is connected to the pin connection groove 7. The wire is located between the pin 11 and the second screw 12.

[0042] The plug housing 1 has a wire groove 13 inside, and an external thread 14 is provided on the top of the plug housing 1. The cable limiting shell 10 is screwed onto the external thread 14, and the wire extends from the wire groove 13 and passes through the cable limiting shell 10. This limits the wire and prevents it from becoming tangled.

[0043] The conductive fixing assembly 8 includes an insulating plate 81 and a plurality of third screws 82. A fixing plate 20 is provided at the bottom of the insulating plate 81. The third screws 82 pass through the insulating plate 81 and are connected to the fixing plate 20. The wire extends from the second screw 12 and wraps around the third screw 82, and is located between the insulating plate 81 and the fixing plate 20. This ensures the normal connection of the wires inside the plug housing.

[0044] The limiting groove 4 is provided with a Z-shaped guide groove 17, and the bottom of the insulating limiting block 6 is provided with a guide block 18. The guide block 18 and the Z-shaped guide groove 17 are matched with each other. This improves the stability of the connection between the insulating limiting block and the plug housing.

[0045] The insulating limiting block 6 forms a positioning groove 19 on the plug housing 1. Several positioning grooves are arranged diagonally on the plug housing, and several limiting blocks are arranged diagonally on the plug housing. The positioning grooves and limiting blocks are arranged intersectingly. This structure allows the special plug to be inserted into the socket with multiple positioning points. By cooperating with the special socket, it avoids the plug from easily falling out of the socket or being frequently pulled out, which would lead to poor contact and affect the power supply.

[0046] Working principle: By setting up a plug shell and a plug insulator, the plug shell and plug insulator are connected by a first screw. The first screw passes through a countersunk hole in the plug insulator and connects to a fixing stud in the plug shell. The insulating limiting block forms a positioning groove on the plug shell. Several limiting blocks are set on the plug shell. An abutment groove is set on the plug insulator. The abutment groove is located between several insulating limiting blocks and has a circular groove. Several positioning grooves and several limiting blocks are arranged diagonally on the plug shell. The positioning grooves and limiting blocks are arranged intersectingly. This structure allows the special plug to be inserted into the socket with multiple positioning points. By cooperating with the special socket, it avoids the plug from easily detaching from the socket or being frequently pulled out, which would lead to poor contact and affect power supply. At the same time, by loosening the first screw, the plug insulator and plug shell can be disassembled, which is convenient for replacing new parts or testing the circuit, improving the user experience.

[0047] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A special plug for preventing poor contact, characterized in that, include: The plug housing has a fixing stud inside, and several limiting blocks and several limiting grooves are provided on it; A plug insulator has several insulating limit blocks, a pin connection groove and a conductive fixing component. A first screw passes through the plug insulator and is connected to the fixing stud. The insulating limit blocks are correspondingly engaged in the limit grooves. The plug insulator has an abutment groove located between several insulating limit blocks. A circular groove is provided in the abutment groove. And a cable retaining housing, which is connected to the top of the plug housing.

2. The special plug for preventing poor contact according to claim 1, characterized in that, The pin passes through the plug insulator, the tail of the pin is connected to the pin connection groove, the second screw passes through the pin and is connected to the pin connection groove, and the wire is located between the pin and the second screw.

3. A special plug for preventing poor contact according to claim 2, characterized in that, The plug housing has a wire groove inside, and the top of the plug housing has an external thread. The cable limiting shell is screwed onto the external thread, and the wire extends from the wire groove and passes through the cable limiting shell.

4. A special plug for preventing poor contact according to claim 2, characterized in that, The conductive fixing assembly includes an insulating plate and a plurality of third screws. A fixing plate is provided at the bottom of the insulating plate. The third screws pass through the insulating plate and are connected to the fixing plate. The wire extends from the second screw, wraps around the third screw, and is located between the insulating plate and the fixing plate.

5. A special plug for preventing poor contact according to claim 4, characterized in that, The limiting groove is provided with a Z-shaped guide groove, and the bottom of the insulating limiting block is provided with a guide block. The guide block and the Z-shaped guide groove are matched with each other.

6. A special plug for preventing poor contact according to claim 1, characterized in that, The insulating limiting block forms a positioning groove on the plug housing.