Special tool for removing cotter pin on live line

Abstract

The invention discloses a special tool for removing a cotter pin on a live line and the special tool is used for removing the cotter pin which is seriously rusted on a power transmission line. The special tool comprises a hollow casing. One end of the casing is provided with limiting grooves corresponding to the upper end and the lower end of the cotter pin. A picking needle corresponding to a circular ring at the head of the cotter pin is arranged at a position corresponding to the limiting groove on the casing on the internal side of the limiting groove. The picking needle can move up and down through a spring which is arranged under the picking needle. A pair of cutting piers corresponding to open legs at the bottom of the cotter pin is arranged at a position corresponding to the limiting groove below the casing on the internal side of the limiting groove. Two pier handles of the cutting piers are connected with a rotating connector which is installed at the other end of the casing and is connected with an insulating bar through an opening and closing mechanism. The special tool for removing the cotter pin on the live line has the advantages that the cotter pin can be removed in a live state, the cotter pin is convenient to remove, the tool is simple to operate, the potential hazards are eliminated and the safe operation of equipment is guaranteed.

Description

technical field [0001] The invention belongs to the technical field of electric power construction tools, in particular to a special tool specially used for live removal of heavily corroded cotter pins on suspension clamps and anti-falling bolts. Background technique [0002] Cotter pins are a kind of pins, commonly known as spring pins, which are commonly used hardware on high-voltage transmission lines and are widely used in bolts and pins on various clamps. The head of the cotter pin is a circular structure, and there are two long and one short cotter pins at the end. When in use, it is inserted into the radial holes of bolts, pins, etc., and then the end with long and short open feet is separated with a tool to fix the nuts that match the bolts, or to prevent the pins from falling off. Play a fixed role. [0003] The cotter pins on the power line are easily corroded by the wind and the sun. After corrosion, the strength is reduced, and they are easy to break during ope...

AI Technical Summary

Problems solved by technology

This kind of operation requires people to be close to the high-voltage transmission line to work. For safety reasons, it must be carried out under the condition of power failure, and the power failure caused by dismantling the cotter pin will bring great economic losses to many users. Therefore, it is possible to remove the cotter pin with power issues that need resolving

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