Lightning-proof insulator with end metal fitting opening mark structure

Abstract

The invention discloses a lightning-proof insulator with an end metal fitting opening mark structure. The lightning-proof insulator comprises an insulator umbrella skirt, a junction metal fitting and a grounding metal fitting; a disconnector is arranged at the bottom of the grounding metal fitting; a metal fitting opening mark structure is arranged at the joint of the insulator umbrella skirt and the grounding metal fitting; the metal fitting opening mark structure comprises a connection bracket and a grounding wire clamp arranged on the connection bracket; a vertical sliding groove is arranged on the outer wall of the insulator umbrella skirt; a movable rolling ball is arranged in the vertical sliding groove; a stress pressure spring is arranged between the movable rolling ball and the vertical sliding groove; a through hole is arranged on the top wall of the vertical sliding groove; a pull rope is arranged in the through hole; a clamping groove is arranged on the surface of the grounding metal fitting; a movable hole is arranged in the middle of the connection bracket; and a disconnection indication lead wire is arranged between each of the two ends of the grounding wire clamp and the disconnector. The lightning-proof insulator disclosed by the invention is simple in structure, good in use stability and convenient for a maintainer to intuitionally judge; therefore, the use safety and reliability of a power grid are greatly improved; and the lightning-proof insulator is good in applicability and high in practicability.

Description

technical field [0001] The invention belongs to the technical field of lightning protection insulators, and in particular relates to a lightning protection insulator with an opening mark structure of end fittings. Background technique [0002] With the gradual maturity of my country's power grid technology, various insulators are developing rapidly. Most of the existing insulators have the same composition. Although they can meet the needs to a certain extent, when subjected to multiple or direct lightning strikes, the gas inside the insulator It will expand rapidly, so it may affect the end fittings, thereby directly destroying the inner epoxy cylinder and causing sterilization damage. At the same time, because there is no obvious mark of the damage, it is easy to be misjudged during maintenance, thus There are certain potential safety hazards in use, and the applicability and practicability are difficult to meet the needs of the market. Contents of the invention [0003] ...

AI Technical Summary

Problems solved by technology

[0002] With the gradual maturity of my country's power grid technology, various insulators have developed rapidly. Most of the insulators in the prior art have the same composition. Although they can meet the needs to a certain extent, when subjected to multiple or direct lightning strikes, the gas inside the insulator It will expand rapidly, so it may affect the end fittings, thereby directly destroying the inner epoxy cylinder and causing sterilization damage. At the same time, because there is no obvious mark of the damage, it is easy to be misjudged during maintenance, thus There are certain potential safety hazards in use, and the applicability and practicability are difficult to meet the needs of the market

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