Cover plate structure of high-voltage switch shell

Abstract

The utility model discloses a high-voltage switch shell cover plate structure, which belongs to the technical field of high-voltage switch packaging and transportation and comprises a circular cover plate and a plurality of cylinders, a boss is concentrically arranged in the center of the circular cover plate, the boss and the circular cover plate are of an integrated structure, the thickness of the boss is larger than or equal to 1.2-1.5 times of the thickness of the circular cover plate, and the cylinder is arranged in the circular cover plate. The cylindrical shell is annularly and uniformly distributed on the boss, and the circular cover plate and the boss are of an integrated structure design, so that the assembly steps in the installation process of the cylindrical shell are reduced, the thickness of the boss is greater than or equal to 1.2-1.5 times of the thickness of the circular cover plate, the local strength problem of the circular cover plate is solved, the strength of the main body structure is improved, and the service life of the cylindrical shell is prolonged. Due to the arrangement of the sealing groove, the sealing performance of connection between the cover plate and the high-voltage switch shell is improved, SF gas can be effectively prevented from leaking, moisture in the atmosphere can be effectively prevented from permeating into the high-voltage switch equipment, and the service life of the high-voltage equipment is prolonged.

Description

Technical Field

[0001] The utility model relates to a high-voltage switch packaging and transportation technology, in particular to a high-voltage switch housing cover plate structure. Background Art

[0002] At present, there are two main types of high-voltage distribution devices in my country. One is the conventional open-type distribution device, which is composed of independent units with a single function. The units are connected by overhead lines and air-insulated. The other is the gas-insulated metal-enclosed distribution device, which uses the high insulation performance of SF6 gas to enclose all the equipment and components in a metal-grounded high-voltage switch tank. Since the high-voltage switch tank is a tank filled with high-voltage insulating gas, it must be sealed with pressure gas and protected by the shell during packaging and transportation. The high-voltage switch packaging and transportation cover is a component for sealing the high-voltage switch tank with pressure gas and protecting the shell. The high-voltage switch shell cover on the market is in use. Due to the problem that the traditional cover is easily damaged in sealing after installation, and the installation and fixation are not stable enough, it is easy to cause the high-voltage switch to be affected by external factors. Utility Model Content

[0003] The utility model aims to provide a high-voltage switch housing cover plate structure with good sealing performance.

[0004] The technical solution of the utility model is: a high-voltage switch housing cover plate structure, comprising a circular cover plate and a plurality of cylinders; a boss is concentrically arranged at the center of the circular cover plate, the boss and the circular cover plate are an integrated structure, the thickness of the boss is greater than or equal to 1.2-1.5 times the thickness of the circular cover plate, the cylinders are evenly distributed on the boss in an annular shape, and the circular cover plate is concentrically arranged on the outer circle of the boss with a sealing groove for placing a sealing ring.

[0005] According to a further technical solution, a plurality of threaded holes are evenly distributed on the circular cover plate, and the threaded holes are evenly distributed in annular shape on the outer ring of the sealing groove.

[0006] According to a further technical solution, a clamping groove for clamping is provided on the upper inner wall of the cylinder.

[0007] According to a further technical solution, the sealing groove is formed by stamping.

[0008] Beneficial effects of the utility model:

[0009] 1. The circular cover plate and the boss of the utility model are designed as an integrated structure, which reduces the assembly steps in the installation process of the utility model. The thickness of the boss is greater than or equal to 1.2-1.5 times the thickness of the circular cover plate, which solves the local strength problem of the circular cover plate, improves the strength of the main structure, and strengthens the stability after installation;

[0010] 2. The provision of the sealing groove of the utility model improves the sealing performance of the connection between the cover plate and the high-voltage switch housing, which can effectively prevent SF gas leakage and moisture in the atmosphere from penetrating into the high-voltage switch equipment, thereby increasing the service life of the high-voltage equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 This is a schematic diagram of the structure of the utility model.

[0012] Among them, 1. circular cover plate, 2. cylinder, 3. boss, 4. sealing groove, 5. threaded hole, 6. snap-in groove. DETAILED DESCRIPTION

[0013] The present invention is further described and understood by way of non-limiting examples below.

[0014] The utility model provides a high-voltage switch housing cover plate structure, comprising a circular cover plate 1 and a plurality of cylinders 2; a boss 3 is concentrically arranged at the center of the circular cover plate 1, the boss 3 and the circular cover plate 1 are an integrated structure, the thickness of the boss 3 is greater than or equal to 1.2-1.5 times the thickness of the circular cover plate 1, the boss 3 and the circular cover plate 1 can be welded and fixed to form an integrated structure, or can be directly made into an integrated structure by casting or stamping, the thickening setting of the boss 3 solves the local strength problem of the circular cover plate 1, improves the strength of the main structure, and makes the connection more reliable; the cylinders 2 are evenly distributed on the boss 3 in an annular shape, and a clamping groove 6 for clamping is arranged on the upper inner wall of the cylinder 2.

[0015] The circular cover plate 1 is concentrically provided with a sealing groove 4 for placing a sealing ring on the outer circle of the boss 3, and the sealing groove 4 is formed by stamping. The setting of the sealing groove 4 improves the sealing performance of the connection between the cover plate and the high-voltage switch housing, which can effectively prevent SF gas leakage and moisture in the atmosphere from penetrating into the high-voltage switch equipment, thereby improving the service life of the high-voltage equipment.

[0016] A plurality of threaded holes 5 for fixing and installing are evenly distributed on the circular cover plate 1 . The threaded holes 5 are evenly distributed in an annular shape on the outer circle of the sealing groove 4 .

[0017] During installation, the utility model is fixed on the high-voltage switch tank body by screws fixed at the threaded holes 5. The connection between the utility model and the high-voltage switch tank body is coated with sealant to improve the sealing effect and form an insulating partition in cooperation with the sealing groove.

[0018] The above description is only the preferred embodiment of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model may have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A high voltage switch housing cover structure, characterized in that: It includes a circular cover plate and several cylinders; a boss is concentrically arranged at the center of the circular cover plate, the boss and the circular cover plate are an integrated structure, the thickness of the boss is greater than or equal to 1.2-1.5 times the thickness of the circular cover plate, the cylinders are evenly distributed on the boss in a ring shape, and the circular cover plate is concentrically arranged on the outer circle of the boss with a sealing groove for placing a sealing ring.

2. A high voltage switch housing cover structure according to claim 1, characterized in that: The circular cover plate is evenly distributed with a plurality of threaded holes, and the threaded holes are evenly distributed in an annular shape on the outer circle of the sealing groove.

3. A high voltage switch housing cover structure according to claim 1, characterized in that: A clamping groove for clamping is arranged on the upper inner wall of the cylinder.

4. A high voltage switch housing cover structure according to claim 1, characterized in that: The sealing groove is formed by stamping.

Images