Shielding cover for disconnection switch

Abstract

The invention discloses a shielding cover for a disconnection switch. The shielding cover comprises two shielding plates, a transmission mechanism, a control mechanism and an insulating hollow pipe; the transmission mechanism comprises an insulating pull rod, a fixed plate and two push-pull plates; the insulating pull rod is arranged in the insulating hollow pipe; a protruding part is arranged at one end of the insulating pull rod while the other end of the insulating pull rod is connected with the control mechanism that is used for controlling insulating pull rod to move in an axial direction of the insulating hollow pipe; the fixed plate is fixed on the insulating hollow pipe, and a first slide way is formed in the fixed plate; the first slide way extends along the axial direction of the insulating hollow pipe; the protruding part is positioned in the first slide way and capable of sliding along the first slide way; and one ends of the two push-pull plates are both hinged with the protruding part while the other ends of the two push-pull plates are hinged with the two shielding plates respectively to enable the two shielding plates to move close or far away from each other so as to clamp or loosen a stand column insulator of the disconnection switch. When the shielding cover for the disconnection switch is used for removing bird nests, effective shielding is applied to the disconnection switch in ground potential so as to ensure a safe distance in live working.

Description

technical field [0001] The invention relates to the field of electric power safety, in particular to a shield for isolating a knife switch. Background technique [0002] With the enhancement of people's awareness of environmental protection and the continuous improvement of the ecological environment, the population, number and range of activities of birds living in nature are gradually increasing. Most of the overhead transmission lines in my country are erected in the wild, and it is not easy to monitor them in time. Therefore, accidents such as short circuits and trips caused by birds nesting and inhabiting on the towers of overhead transmission lines are on the rise, and the safe operation of the power grid is seriously threatened. . [0003] The double cross-arm used to fix the isolation switch on the pole, the W iron of the double cross-arm and the eye hole formed on the surface of the pole, the nails for fixing the double cross-arm and the eye hole formed on the surfa...

AI Technical Summary

Problems solved by technology

[0007] The technical problem to be solved by the present invention is to provide a shielding cover for isolating knife gates to solve the problems of potential safety hazards and circuit failures in the prior art when removing bird nests near the isolating knife gates with electricity

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