Assembling clamp for vacuum arc-extinguishing chamber

Abstract

The utility model discloses an assembly fixture for a vacuum arc-extinguishing chamber. The assembly fixture comprises a bottom plate, a top plate and side plates, the bottom plate is provided with a positioning groove with an opening in one side, and the positioning groove is used for placing a boss at the lower part of the vacuum arc-extinguishing chamber; the top plate is provided with an open slot, and the open slot is used for placing a flat square at the upper part of the vacuum arc-extinguishing chamber; the number of the side plates is two, the lower portions of the two side plates are fixed to the two sides of the bottom plate respectively, and the upper portions of the two side plates are fixed to the two sides of the top plate respectively. And the opening directions of the positioning groove and the opening groove are consistent. According to the utility model, the structure is simple, the vacuum arc-extinguishing chamber is fixed, rotation and movement are limited through the frame structure formed by the bottom plate, the top plate and the side plates, single-person operation is realized, and product assembly is facilitated. And the assembling efficiency is improved, and the risks of collision and scratching of products are reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of electric switch equipment manufacturing, and particularly relates to an assembly fixture for a vacuum interrupter. Background Art

[0002] A vacuum interrupter is a key component of a vacuum load switch. It consists primarily of an airtight insulating casing, a conductive circuit, a shielding system, contacts, and a bellows. A glass or ceramic casing protects the internal vacuum environment. The circuit is switched on and off, and arc extinguishing is achieved through the opening and closing of copper contacts within the vacuum interrupter. It is primarily used in power transmission and distribution control systems. During installation, the threads of the copper components must be carefully protected and the tightening torque controlled to prevent damage. Hitting or scratching the vacuum interrupter casing with hard objects is strictly prohibited to prevent breakage and air leakage. Heat can also easily shatter the glass casing. Assembly of the vacuum interrupter requires screws and double nuts installed on the upper portion of the chamber. This is primarily achieved by manually supporting the casing and tightening the nuts with a wrench to prevent movement. Due to the lack of suitable tooling to position and restrict rotation, two people are often required, reducing assembly efficiency. Furthermore, the casing is prone to bumps and scratches during assembly, potentially damaging the product. Utility Model Content

[0003] In view of the above-mentioned defects, the present invention aims to provide an assembly fixture for a vacuum interrupter.

[0004] This assembly fixture positions the vacuum interrupter using a bottom plate, restricts its rotation with a top plate, and connects the bottom and top plates with side plates to form a cavity structure, protecting the vacuum interrupter. This single-person assembly operation improves work efficiency and reduces the risk of product damage.

[0005] In order to achieve the above technical objectives, the following technical solutions are adopted:

[0006] An assembly fixture for a vacuum arc chamber comprises a bottom plate, a top plate and side plates; the bottom plate is provided with a positioning groove with an opening on one side, the positioning groove being used to place a boss at the bottom of the vacuum arc chamber; the top plate is provided with an open groove, the open groove being used to place a flat square at the top of the vacuum arc chamber; there are two side plates, the lower portions of the two side plates are respectively fixed to both sides of the bottom plate, and the upper portions of the two side plates are respectively fixed to both sides of the top plate; the positioning groove and the opening direction of the open groove are consistent.

[0007] Furthermore, the front end of the positioning slot opening is trumpet-shaped and the rear end is inverted U-shaped.

[0008] Furthermore, the shape of the rear end of the opening slot is consistent with the flat square shape of the upper portion of the vacuum interrupter chamber.

[0009] Furthermore, screws are provided at the four corners of the end surface of the bottom plate for fixed connection with the workbench.

[0010] Furthermore, screws are provided at the four corners of the end surface of the top plate for connecting to the upper part of the side plate, and screws are provided at the lower part of the side plate for connecting to the side surface of the bottom plate.

[0011] Furthermore, the bottom plate, top plate and side plates are square in shape.

[0012] The beneficial effects achieved by the utility model are:

[0013] This utility model is used during the assembly of a vacuum interrupter. The bottom plate positioning groove of the fixture accommodates the lower boss of the vacuum interrupter, limiting its displacement. The top plate opening accommodates the upper flat square of the vacuum interrupter, limiting its rotation. Side panels connect the bottom and top plates to form a frame structure that protects the vacuum interrupter. This fixture saves manpower, allowing a single person to complete the assembly operation. The frame structure protects and limits the position of the vacuum interrupter, preventing potential bumps during tightening (such as a wrench accidentally hitting the glass casing of the interrupter). BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The present invention will be described below in conjunction with the accompanying drawings.

[0015] Attachment Figure 1 The utility model is a schematic diagram of the structure of an assembly fixture for a vacuum interrupter.

[0016] Attachment Figure 2 The utility model is a top view of an assembly fixture for a vacuum interrupter.

[0017] Attachment Figure 3 This is an assembly view of the vacuum interrupter product of the utility model.

[0018] In the figure: 1. bottom plate; 2. top plate; 3. side plate; 4. workbench; 5. vacuum interrupter; 11. bottom plate positioning groove; 21. top plate opening groove; 51. vacuum interrupter boss; 52. vacuum interrupter flat square. DETAILED DESCRIPTION

[0019] The following describes the implementation of the present invention using specific embodiments. Those skilled in the art will readily understand the other advantages and benefits of the present invention from the disclosure herein. The embodiments described are merely a portion of the present invention, not all of it. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the present invention without inventive effort are also within the scope of protection of the present invention.

[0020] like Figure 1-3As shown, the utility model is an assembly fixture for a vacuum interrupter, comprising a bottom plate 1, a top plate 2 and a side plate 3.

[0021] A positioning groove 11 with an opening on one side is provided on the end surface of the base plate 1 and screws are provided at the four corners for fixing it to the workbench 4; the positioning groove 11 is used to place the boss 51 at the lower part of the vacuum interrupter 5 to achieve positioning, and the shape of the positioning groove 11 is a trumpet shape at the front end of the opening and an inverted U shape at the rear end.

[0022] The top plate 2 is provided with an open slot 21 for placing the upper flat square 52 of the vacuum interrupter 5. The shape of the rear end of the opening of the open slot 21 is consistent with the flat square 52. Screws are provided at the four corners of the end face of the top plate 2 for connecting to the upper part of the side plate 3.

[0023] There are two side panels 3 , the lower parts of which are fixedly mounted on both sides of the positioning groove 11 , and the upper parts of which are fixedly mounted on both sides of the opening groove 21 ; screws are provided at the lower parts of the side panels 3 for connecting to the sides of the bottom plate 1 .

[0024] The positioning groove 11 and the opening groove 21 have the same opening direction to facilitate taking out the product.

[0025] The use process of this utility model is as follows:

[0026] First, fix the bottom plate 1 on the workbench 4 and then fix the side plates 3 and top plate 2 in sequence, ensuring that the positioning groove 11 and the opening groove 21 have the same opening direction. Align the upper flat square 52 of the vacuum arc chamber with the opening groove 21, and align the lower mounting boss 51 with the positioning groove 11, and then install it into the fixture to fix the vacuum arc chamber 5 and restrict its rotation and movement. Then screw the screw and other components into the threaded hole on the upper part of the vacuum arc chamber 5, and tighten and interlock the double nuts with two open-end wrenches. After completion, the vacuum arc chamber 5 can be removed. During this process, the vacuum arc chamber 5 is in the frame structure formed by the bottom plate 1, top plate 2 and side plate 3, which prevents the product from moving during tightening and protects its outer shell, reducing the risk of bumps and scratches.

[0027] Other aspects of the present invention that are not described in detail are all conventional technologies known to those skilled in the art.

[0028] It should be noted that the terms "comprises," "includes," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a series of elements includes not only those elements, but also other elements not explicitly listed, or elements that are inherent to such process, method, article, or apparatus.

[0029] The protection scope of the present invention is not limited to the technical solutions disclosed in the specific implementation methods. Any modifications, equivalent replacements, improvements, etc. made to the above embodiments based on the technical essence of the present invention shall fall within the protection scope of the present invention.

Claims

1. An assembly fixture for a vacuum interrupter, characterized in that: The invention comprises a bottom plate (1), a top plate (2) and a side plate (3); the bottom plate (1) is provided with a positioning groove (11) with an opening on one side, and the positioning groove (11) is used to place a boss (51) at the lower part of the vacuum arc extinguishing chamber (5); the top plate (2) is provided with an opening groove (21), and the opening groove (21) is used to place a flat square (52) at the upper part of the vacuum arc extinguishing chamber (5); the number of the side plates (3) is two, and the lower parts of the two side plates (3) are respectively fixed on both sides of the bottom plate (1), and the upper parts of the two side plates (3) are respectively fixed on both sides of the top plate (2); the opening direction of the positioning groove (11) is consistent with that of the opening groove (21).

2. The assembly fixture for a vacuum interrupter according to claim 1, characterized in that: The front end of the opening of the positioning groove (11) is trumpet-shaped and the rear end is inverted U-shaped.

3. The assembly fixture for a vacuum interrupter according to claim 1, characterized in that: The shape of the rear end of the opening slot (21) is consistent with the shape of the flat square (52) on the upper part of the vacuum interrupter.

4. The assembly fixture for a vacuum interrupter according to claim 1, characterized in that: Screws are provided at the four corners of the end surface of the bottom plate (1) for fixed connection with the workbench (4).

5. The assembly fixture for a vacuum interrupter according to claim 4, characterized in that: Screws are provided at the four corners of the end surface of the top plate (2) for connecting to the upper portion of the side plate (3), and screws are provided at the lower portion of the side plate (3) for connecting to the side surface of the bottom plate (1).

6. An assembly fixture for a vacuum interrupter according to any one of claims 1 to 5, characterized in that: The bottom plate (1), top plate (2) and side plates (3) are square in shape.

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