A locking device for a connector plug

Abstract

The utility model provides a locking device of connector plug relates to electric connector technical field, and locking device includes: a plurality of locking screw, replaceable locking cooperation component and plug base, plug base inside is equipped with the locking space for accommodating locking screw activity, replaceable locking cooperation component includes the shell casing of covering in the outside of plug base and the first pad and second pad of embedding in locking space. The utility model provides locking device when using shell can reach locking requirement with shell locking screw cooperation, when not using shell can reach locking requirement with pad and pad locking screw cooperation, like this can satisfy the demand of two different environments.

Description

Technical Field

[0001] This utility model relates to the field of electrical connector technology, and in particular to a locking device for a connector plug. Background Technology

[0002] Connectors used in power cabinets are key components for ensuring the stable operation of electrical equipment, and the reliability of their locking structure directly affects the safety and service life of the equipment. With the diversification of application scenarios (such as industrial control, communication base stations, etc.), cabinets have put forward differentiated requirements for the protection level and installation method of connectors.

[0003] In the existing technology, the connectors used in power cabinets have poor compatibility, and only provide solutions with or without a housing. The same connector cannot flexibly switch between the two locking modes. Customers need to purchase two independently designed plugs for different cabinets, which increases spare parts costs and management burden. Utility Model Content

[0004] To solve the above-mentioned technical problems, this utility model provides a locking device for a connector plug, which can be used with a housing or without a housing and replaced with a pad structure, achieving the technical effect of flexibly switching between two locking modes for the same connector. The locking device includes: multiple locking screws (2), replaceable locking mating parts, and a plug base (4); The plug base (4) has a locking space (3) inside for accommodating the movement of the locking screw; The replaceable locking engagement component includes a housing (1) covering the outside of the plug base (4) and a first pad (6) and a second pad (7) embedded in the locking space (3).

[0005] Furthermore, when the replaceable locking engagement component is locked using the housing (1), the housing (1) has a plurality of round holes and the housing (1) covers the outside of the plug base (4).

[0006] Furthermore, the locking screw (2) passes through the round hole of the outer shell (1) and extends into the internal space of the plug base (4), and the upper end of the locking screw (2) presses against the outer shell (1), while the lower end of the locking screw (2) extends into the internal space of the plug base (4).

[0007] Furthermore, the lower end of the locking screw (2) is provided with a conical frustum that matches the shape of the locking space (3).

[0008] Furthermore, the circular hole of the outer casing (1) and the locking screw (2) are interference fit.

[0009] Furthermore, when the replaceable locking component is locked using the outer shell (1), the first pad (6) and the second pad (7) are embedded in the locking space (3) according to a preset eccentric design. The shape of the first pad (6) and the second pad (7) are tightly fitted with the locking space (3), and the lower end is provided with a tapered shape.

[0010] Furthermore, the locking assembly also includes a flat washer (5), and the locking screw (2) passes through the flat washer (5) and is threadedly connected to the first pad (6) and the second pad (7).

[0011] Furthermore, the locking screw (2) includes a head, a straight bar portion and a threaded portion in sequence from the head to the end, and the diameter of the straight bar portion is smaller than the diameter of the threaded portion.

[0012] Furthermore, the first pad (6) and the second pad (7) are each provided with a first position (8) and a second position (9). The diameter of the first position (8) is smaller than the diameter of the threaded portion of the locking screw (2), and the diameter of the second position (9) is larger than the diameter of the threaded portion of the locking screw (2).

[0013] Furthermore, the plug base (4) is made of plastic.

[0014] Compared with the prior art, the locking device for a connector plug provided by this utility model has the following advantages: This invention achieves rapid switching between using a housing and a housing-less scenario by adding a locking structure to the design of a pad, thus meeting differentiated protection requirements. When using a housing, the locking requirement is achieved based on the interference fit between the locking screw and the housing's circular hole, as well as the conical frustum pressing base. When not using a housing, the locking requirement can be achieved by using a pad and a pad locking screw. This can meet the needs of two different environments. Attached Figure Description

[0015] The accompanying drawings, which form part of this disclosure, are used to provide a further understanding of this disclosure. The illustrative embodiments of this disclosure and their descriptions are used to explain this disclosure and do not constitute an undue limitation of this disclosure.

[0016] Figure 1 A top view of the locking and fitting component provided by this utility model when locked in place using the housing; Figure 2 Enlarged view of the locking structure of the locking fitting component provided by this utility model when the outer shell is used for locking; Figure 3 Front view of the locking and fitting component provided by this utility model when not using the outer shell for locking; Figure 4 Enlarged view of the locking structure of the locking component provided by this utility model when the outer shell is not used for locking; Figure 5 A top view of the locking and fitting component provided by this utility model when the outer shell is not used for locking; Figure 6 A schematic diagram of the first pad provided by this utility model; Figure 7 A schematic diagram of the second pad provided by this utility model.

[0017] In the diagram: 1. Outer shell; 2. Locking screw; 3. Locking space; 4. Plug base; 5. Flat washer; 6. First washer; 7. Second washer; 8. First position; 9. Second position. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0019] This utility model provides a locking device for a connector plug, comprising: Multiple locking screws (2), replaceable locking mating parts and plug base (4); The plug base (4) has a locking space (3) inside for accommodating the movement of the locking screw; The replaceable locking engagement component includes a housing (1) covering the outside of the plug base (4) and a first pad (6) and a second pad (7) embedded in the locking space (3).

[0020] Specifically, such as Figures 1 to 2 When the replaceable locking engagement component is locked using the housing (1), the housing (1) has a plurality of round holes and covers the outside of the plug base (4).

[0021] Specifically, the locking screw (2) passes through the round hole of the outer shell (1) and extends into the internal space of the plug base (4), and the upper end of the locking screw (2) presses against the outer shell (1), while the lower end of the locking screw (2) extends into the internal space of the plug base (4).

[0022] Specifically, the lower end of the locking screw (2) is provided with a conical frustum that matches the shape of the locking space (3).

[0023] Specifically, the round hole of the outer shell (1) and the locking screw (2) are interference fit.

[0024] Specifically, such as Figures 3 to 7When the replaceable locking fitting component is locked using the outer shell (1), the first pad (6) and the second pad (7) are embedded in the locking space (3) according to the preset eccentric design. The shape of the first pad (6) and the second pad (7) are tightly fitted with the locking space (3), and the lower end is provided with a tapered shape.

[0025] Specifically, the locking assembly also includes a flat washer (5), and the locking screw (2) passes through the flat washer (5) and is threadedly connected to the first pad (6) and the second pad (7).

[0026] Specifically, the locking screw (2) includes a head, a straight bar and a threaded part from the head to the end, and the diameter of the straight bar is smaller than the diameter of the threaded part.

[0027] Specifically, the first pad (6) and the second pad (7) are provided with a first position (8) and a second position (9). The diameter of the first position (8) is smaller than the diameter of the threaded portion of the locking screw (2), and the diameter of the second position (9) is larger than the diameter of the threaded portion of the locking screw (2).

[0028] Specifically, the plug base (4) is made of plastic.

[0029] In one specific embodiment, the shell locking structure is as follows: Figure 1 As shown. The plug needs to be secured with four locking screws (2). The locking screws (2) pass through the round hole in the outer shell and extend into the locking space (3) of the plug base (4), and then through the round hole in the plug base (4), with the threads protruding from the base as shown. Figure 2 The screw passes through the round hole in the outer shell with an interference fit, ensuring it doesn't come loose after passing through the shell, thus preventing it from falling out and being lost when the plug and socket are loosened. The locking screw (2) provided by this utility model is designed and manufactured separately, and can simultaneously fix the outer shell and the plug base. As shown in the figure, the upper end of the screw presses against the outer shell, and the lower end of the screw is designed as a conical frustum, matching the shape of the plug base, and the conical frustum presses against the plug base. The plug base (4) is made of plastic, and its spatial design is to prevent the plastic from shrinking during production, which would cause the appearance to dent. At the same time, it leaves room for the locking screw (2) to move, making it easy to install.

[0030] The design does not use a shell because the locking hole of the plug base is eccentric to the available space. Therefore, two types of eccentric pads need to be designed separately to fill the space on the plug base. The design shape is as follows: Figure 6 and Figure 7 The positions of the first pad (6) and the second pad (7) in the plug base must not be reversed. The specific placement is as follows: Figure 5 As shown. The overall structure after installation is as follows. Figure 3As shown, the outer dimensions of the first pad (6) and the second pad (7) are designed to fit tightly with the dimensions of the plug base space, and the lower end is designed with a tapered shape for easy installation, such as... Figure 5 As shown. The first pad (6) and the second pad (7) are not easily dislodged after being pressed into the plug base. The locking screw (2) used in this structure has a threaded front end and a straight bar at the rear end, and is designed so that the diameter of the straight bar is smaller than the diameter of the thread to meet the requirements of preventing dislodging. The locking screw (2) first passes through a washer and then is screwed into the first pad (6) or the second pad (7). When the thread passes through a smaller position, the screw can move up and down in the first pad (6) or the second pad (7) without falling off. The screw thread can extend out of the plug base for locking, or it can retract into the first pad (6) or the second pad (7), so that the screw not protruding from the plug base plane will not affect the plug and socket mating.

[0031] The working principle of this utility model: When a locking mechanism with an outer shell is required, the outer shell (1) is used to cover the base (4), the locking screw (2) passes through the interference fit hole of the outer shell to press the outer shell, and the lower conical frustum (41) is used to expand and press into the plastic base space (3) to achieve bidirectional fixation; When locking without a housing is required, an eccentric pad is inserted into the base space (3), and the locking screw (2) passes through the washer (5) and screws into the pad. The diameter of the straight part of the screw is less than that of the threaded part, so that it can move up and down inside the pad but cannot come out. At the same time, the eccentric structure of the first pad (6) and the second pad (7) is asymmetrically matched with the base space (3), ensuring that the first pad (6) and the second pad (7) can accurately fill the space and cooperate with the locking screw to achieve the locking function, thus achieving floating and preventing falling off.

[0032] In the description of this specification, the terms "connection", "installation", "fixing", "setting", etc. are interpreted in a broad sense. For example, "connection" can be a fixed connection or an indirect connection through an intermediate component without affecting the relationship between components and the technical effect. It can also be an integral connection or a partial connection. In such cases, those skilled in the art can understand the specific meaning of the above terms in this utility model or utility model according to the specific circumstances.

[0033] 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 locking device for a connector plug, characterized by include: Multiple locking screws (2), replaceable locking mating parts and plug base (4); The plug base (4) has a locking space (3) inside for accommodating the movement of the locking screw; The replaceable locking engagement component includes a housing (1) covering the outside of the plug base (4) and a first pad (6) and a second pad (7) embedded in the locking space (3).

2. The locking device for the connector plug as described in claim 1, characterized in that, When the replaceable locking engagement component is locked using the housing (1), the housing (1) has a plurality of round holes and covers the outside of the plug base (4).

3. The locking device for the connector plug as described in claim 2, characterized in that, The locking screw (2) passes through the round hole of the outer shell (1) and extends into the internal space of the plug base (4), with the upper end of the locking screw (2) pressing against the outer shell (1) and the lower end of the locking screw (2) extending into the internal space of the plug base (4).

4. The locking device for the connector plug as described in claim 3, characterized in that, The lower end of the locking screw (2) is provided with a conical frustum that matches the shape of the locking space (3).

5. The locking device for the connector plug as described in claim 2, characterized in that, The round hole of the outer casing (1) and the locking screw (2) are interference fit.

6. The locking device for the connector plug as described in claim 1, characterized in that, When the replaceable locking component is locked using the outer shell (1), the first pad (6) and the second pad (7) are embedded in the locking space (3) according to the preset eccentric design. The shape of the first pad (6) and the second pad (7) are tightly fitted with the locking space (3), and the lower end is tapered.

7. The locking device for the connector plug as described in claim 6, characterized in that, The locking assembly also includes a flat washer (5), and the locking screw (2) passes through the flat washer (5) and is threadedly connected to the first pad (6) and the second pad (7).

8. The locking device for the connector plug as described in claim 6, characterized in that, The locking screw (2) includes a head, a straight bar and a threaded part from the head to the end, and the diameter of the straight bar is smaller than the diameter of the threaded part.

9. The locking device for the connector plug as described in claim 8, characterized in that, The first pad (6) and the second pad (7) are each provided with a first position (8) and a second position (9). The diameter of the first position (8) is smaller than the diameter of the threaded portion of the locking screw (2), and the diameter of the second position (9) is larger than the diameter of the threaded portion of the locking screw (2).

10. The locking device for the connector plug as claimed in claim 1, characterized in that, The plug base (4) is made of plastic.

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