Quadratic miniature-busbar excising forceps

Abstract

The invention discloses a pair of quadratic miniature-busbar excising forceps, which comprise a movable cutter bit and a fixed cutter bit, wherein a blade of the fixed cutter bit is backward and arranged in an open groove at the front end of a fixed handle; the movable cutter bit which is opposite to the fixed cutter bit is slidably arranged on a groove of the fixed handle; a striker is arranged at a position in the fixed handle at the rear end of the movable cutter bit, which is aligned with the tail end surface of the movable cutter bit; the rear end of the striker is connected to a contact of a miniature hydraulic cylinder; the hydraulic cylinder is fixed in a middle-section cavity of the fixed handle; a decompression button is arranged on the hydraulic cylinder; a power arm is vertically extracted from the hydraulic cylinder to the outside of the fixed handle; the upper end of the power arm is axially connected to the movable handle; the inner end of the movable handle is axially connected to a bracket which is fixed with the fixed handle; and a layer of insulation jacket is respectively fixed on the outer walls of the fixed handle and the movable handle. The hydraulic excising forceps have the advantages of simple structure, convenience for carrying and operation and good safety.

Description

Technical field: [0001] The invention relates to a live working tool, in particular to a cutting pliers which can safely and reliably cut off the secondary small bus bar of a screen top of a transformer substation under live conditions. Background technique: [0002] In substation renovation and expansion projects, it is often necessary to replace or add protective screens. Among them, how to safely and reliably cut off the secondary small bus on the top of the screen while ensuring that the power supply and operating equipment is not affected is a problem that needs to be solved. Due to the limitation of field conditions, the cutting work must be carried out under the charged state. The existing secondary small busbar cutting device cannot be used to cut off the secondary small busbar under the charged state because of its large blade part and poor insulation performance. busbar. Invention content: [0003] The object of the present invention is to provide a secondary sm...

AI Technical Summary

Problems solved by technology

Due to the limitation of field conditions, the cutting work must be carried out under the charged state. The existing secondary small busbar cutting device cannot be used to cut off the secondary small busbar under the charged state because of its large blade part and poor insulation performance. busbar

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