Splitting-pin clamp for live replacement of double-string antifouling porcelain insulator at earth potential

Abstract

The invention relates to a tool for replacing a double-string antifouling porcelain insulator, in particular to a splitting-pin clamp for live replacement of the double-string antifouling porcelain insulator at earth potential. The splitting-pin clamp is structurally characterized in that a clamp body is composed of two clamp legs; each clamp leg comprises a straight part and a bent part, wherein the plane of the bent part and the plane of the straight part are arranged at the angle ranging from 110 degrees to 150 degrees, and the bent part deflects to one side by 40-60 degrees in the extension direction of the straight part; jaws are located at the upper ends of the bent parts, the plane of the jaws is parallel to the plane where the straight parts of the clamp body are located, and accordingly the jaws deflect to one side by 40-60 degrees relative to the straight parts of the clamp body. The splitting-pin clamp has the advantages that a general structure of a straight plate of the splitting-pin clamp is abandoned, and the splitting-pin clamp of an S-shaped structure conforms to the environmental structure of the connecting part between a ball head in an inwards-sunken part of the antifouling porcelain insulator and a steel cap, is easy to operate, convenient to use and reliable, guarantees personnel safety, improves operating safety and meanwhile effectively guarantees safe and stable operation of a power grid.

Description

technical field [0001] The invention relates to a tool for replacing a double-string anti-pollution type porcelain insulator, in particular to a pin-removing pliers for replacing a double-string anti-pollution type porcelain insulator with electrified ground potential. Background technique [0002] In transmission lines, anti-pollution porcelain insulators are usually used in strain-resistant lines, which include steel caps, ball heads and porcelain insulator sheets, where the steel cap and ball head are respectively located at the front and rear ends of the porcelain insulator sheets, so that through The steel cap of the subsequent porcelain insulator sheet is connected to the ball head of the preceding porcelain insulator sheet, thereby connecting multiple porcelain insulator sheets in a string. Because the structure of the porcelain insulator sheet is like a skirt, the porcelain skirt extends downward like a straw hat, and the ball head can only shrink in the inner recess...

AI Technical Summary

Problems solved by technology

Conventional pin removal pliers include a pliers body and a pliers mouth. The pliers body and pliers mouth are on the same plane, which is a straight plate type. However, since the connection position of the insulator is recessed into the porcelain skirt, the pin removal pliers with a straight plate structure not only need to select a special angle Extend the pliers mouth into the inner recess of the porcelain skirt, and at the same time be able to clamp the spring pin, which cannot be realized in the tiny space of the inner recess of the porcelain skirt. Therefore, in the prior art, it is necessary to realize the antifouling Type porcelain insulators can only be replaced when they are live, and the operator can only enter the electric field to operate the replacement, or to replace the power, but this will inevitably bring about the complexity of the operation, the personal safety of personnel cannot be guaranteed, and the reliability of power supply is poor, which has a great impact on the stable operation of the power grid.

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