Automatic locking mechanism of a plug-in box

Abstract

The utility model discloses an automatic locking mechanism of plug -in box, include: plug -in box and the two groups of lock catch mechanism for locking busbar section material of symmetrical setting in the side of plug -in box, and lock catch mechanism includes bottom plate, hook, rotation axis and torsional spring, and bottom plate sets up on the lateral wall of plug -in box, and the top of hook is connected with bottom plate rotation, and the end face of hook to bottom plate is provided with limit slot, and the limit slot is provided with positioning hole, and rotation axis is inserted the center hole of torsional spring after passing through positioning hole, and the end face of bottom plate to hook is provided with limit portion, and torsional spring is placed in limit slot, and first end and the first inner side wall of limit slot are in abutment, and second end and the second inner side wall of limit slot are in abutment and contact with limit portion, the automatic locking mechanism of plug -in box of the utility model can realize the dismounting work between plug -in box and bus duct quickly.

Description

Technical Field

[0001] This utility model relates to the technical field of locking structures, and in particular to an automatic locking mechanism for a plug-in box. Background Technology

[0002] During operation, the plug-in box needs to be installed on the busbar trunking to enable the plug-in box to safely draw power from the rail-type busbar. When the busbar profile and the plug-in box are connected, the plug-in box is relatively bulky, the installation process is complicated, and disassembly is difficult. It requires multiple people to cooperate in the operation. Therefore, a locking mechanism for the busbar trunking and plug-in box that can be quickly disassembled and assembled is required. Utility Model Content

[0003] To address the shortcomings of existing technologies, this utility model provides an automatic locking mechanism for a plug-in box. When the hook of the plug-in box contacts the busbar profile, the torsion spring is compressed, causing the hook to rotate outward. After the plug-in box is inserted into the appropriate position, the hook returns to its original position under the rebound action of the torsion spring, automatically locking with the busbar trunking. This allows for quick assembly and disassembly of the plug-in box and the busbar trunking, greatly facilitating production and use.

[0004] To solve the above-mentioned technical problems, the present invention adopts an automatic locking mechanism for a plug-in box, comprising: a plug-in box and two sets of locking mechanisms symmetrically arranged on the side of the plug-in box for locking busbar profiles. The locking mechanism includes a base plate, a hook, a rotating shaft, and a torsion spring. The base plate is disposed on the side wall of the plug-in box. The top of the hook is rotatably connected to the base plate. A limiting groove is provided on the end face of the hook facing the base plate. A positioning hole is provided in the limiting groove. The rotating shaft passes through the positioning hole and is inserted into the center hole of the torsion spring. A limiting part is provided on the end face of the base plate facing the hook. The torsion spring is placed in the limiting groove, with its first end abutting against the first inner side wall of the limiting groove and its second end abutting against the second inner side wall of the limiting groove and in contact with the limiting part.

[0005] In a preferred embodiment of the present invention, when the torsion spring is in a compressed state, the first end of the torsion spring abuts and presses against the first inner sidewall of the limiting groove. After the hook rotates outward, the second end of the torsion spring moves away from the second inner sidewall of the limiting groove and abuts and presses against the limiting part.

[0006] In a preferred embodiment of the present invention, the limiting part is a limiting protrusion disposed on the base plate, and the limiting protrusion is integrally formed with the base plate.

[0007] In a preferred embodiment of this utility model, the limiting groove is a 1 / 4 circle structure, and a notch is provided at the top of the second inner sidewall of the limiting groove. After the base plate and hook are installed, the limiting protrusion is disposed in the notch.

[0008] In a preferred embodiment of the present invention, the top of the hook is provided with a waist-shaped groove, and is rotatably connected to the base plate by a screw passing through the waist-shaped groove.

[0009] In a preferred embodiment of this utility model, the base plate is fixedly installed on the side of the plug-in box by four sets of bolts.

[0010] The beneficial effects of this utility model are: when the hook of the plug box touches the busbar profile, the torsion spring is compressed and the hook rotates outward. When the plug box is inserted into the appropriate position, the hook returns to its original position under the rebound action of the torsion spring, realizing automatic snap-locking with the busbar. No additional auxiliary personnel are required, and a single person can operate it to quickly realize the disassembly and assembly of the plug box and the busbar. Attached Figure Description

[0011] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort, wherein: Figure 1 This is a schematic diagram of the automatic locking mechanism of the plug-in box of this utility model; Figure 2 This is an exploded view of the locking mechanism in this utility model; Figure 3 This is a schematic diagram of the locking mechanism in this utility model; Figure 4 This is a schematic diagram of the hook of this utility model when it is squeezed. Detailed Implementation

[0012] The technical solutions in the embodiments of this utility model will be clearly and completely described below. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0013] Please see Figure 1-4This utility model discloses an automatic locking mechanism for a plug-in box, comprising: a plug-in box 1 and a locking mechanism. Preferably, two sets of locking mechanisms 2 for locking busbar profiles are symmetrically arranged at the left and right ends of the plug-in box. The locking mechanism includes a base plate 21, a hook 22, a rotating shaft 23, and a torsion spring 24. The base plate is installed on the side wall of the plug-in box by four sets of screws. The top of the hook is rotatably connected to the base plate. A limiting groove 221 is provided on the end face of the hook facing the base plate. A positioning hole 222 is provided in the limiting groove. During installation, the rotating shaft is inserted through the positioning hole and then inserted into the center hole of the torsion spring, so that the torsion spring is rotatably mounted on the rotating shaft. A limiting part 211 is provided on the end face of the base plate facing the hook. The torsion spring is fixed on the rotating shaft and placed in the limiting groove. Under normal conditions, the first end 241 of the torsion spring abuts against the first inner side wall of the limiting groove, and the second end 242 of the torsion spring abuts against the second inner side wall of the limiting groove and contacts the limiting part.

[0014] When the plug-in box needs to be installed on the busbar trough of the busbar profile, the torsion spring is in a compressed state when the hook touches the busbar profile. The torsion spring is compressed and the hook rotates outward. The first end of the torsion spring abuts and presses against the first inner sidewall of the limiting groove. After the hook rotates outward, the second end of the torsion spring moves away from the second inner sidewall of the limiting groove and abuts and presses against the limiting part. When the plug-in box is inserted into the appropriate position, the hook returns to its position under the rebound action of the torsion spring, realizing automatic snap-locking with the busbar trough.

[0015] Furthermore, the limiting part is a limiting protrusion set on the base plate. The limiting protrusion is integrally formed with the base plate. In this embodiment, the limiting groove is a 1 / 4 circle structure, or it is set as a semi-circular or arc-shaped structure. The top of the second inner sidewall of the limiting groove is provided with a notch 223. After the base plate and the hook are installed, the limiting protrusion is set in the notch. When the torsion spring is compressed, the limiting protrusion is used to abut and limit the second end of the torsion spring.

[0016] Furthermore, the top of the hook is provided with a waist-shaped groove 224, and after the screw 3 passes through the waist-shaped groove, it is installed and connected to the base plate, which can realize the rotational connection between the hook and the base plate.

[0017] The beneficial effects of this utility model are: when the hook of the plug box touches the busbar profile, the torsion spring is compressed and the hook rotates outward. When the plug box is inserted into the appropriate position, the hook returns to its original position under the rebound action of the torsion spring, realizing automatic snap-locking with the busbar. No additional auxiliary personnel are required, and a single person can operate it to quickly realize the disassembly and assembly of the plug box and the busbar.

[0018] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made using the content of this utility model specification, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. An automatic locking mechanism for a plug-in box, comprising: A plug-in box and two sets of locking mechanisms symmetrically arranged on the side of the plug-in box for locking busbar profiles are characterized in that the locking mechanism includes a base plate, a hook, a rotating shaft, and a torsion spring. The base plate is disposed on the side wall of the plug-in box. The top of the hook is rotatably connected to the base plate. A limiting groove is provided on the end face of the hook facing the base plate. A positioning hole is provided in the limiting groove. The rotating shaft passes through the positioning hole and is inserted into the center hole of the torsion spring. A limiting part is provided on the end face of the base plate facing the hook. The torsion spring is placed in the limiting groove. The first end abuts against the first inner side wall of the limiting groove, and the second end abuts against the second inner side wall of the limiting groove and contacts the limiting part.

2. The automatic locking mechanism for a plug-in box according to claim 1, characterized in that, When the torsion spring is in a compressed state, the first end of the torsion spring abuts and presses against the first inner wall of the limiting groove. After the hook rotates outward, the second end of the torsion spring moves away from the second inner wall of the limiting groove and abuts and presses against the limiting part.

3. The automatic locking mechanism for a plug-in box according to claim 2, characterized in that, The limiting part is a limiting protrusion provided on the base plate, and the limiting protrusion is integrally formed with the base plate.

4. The automatic locking mechanism for a plug-in box according to claim 3, characterized in that, The limiting groove has a 1 / 4 circle structure, and a notch is provided at the top of the second inner sidewall of the limiting groove. After the base plate and hook are installed, the limiting protrusion is set in the notch.

5. The automatic locking mechanism for a plug-in box according to claim 1, characterized in that, The top of the hook is provided with a waist-shaped groove, and it is rotatably connected to the base plate by a screw passing through the waist-shaped groove.

6. The automatic locking mechanism for a plug-in box according to claim 1, characterized in that, The base plate is fixedly installed to the side of the plug-in box by four sets of bolts.

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