Novel lock catch type grounding wire anti-falling hook device with bottom opening

Abstract

The invention discloses a novel lock catch type grounding wire anti-falling hook device with a bottom opening, which is reasonable, rigorous and reliable in structure and can effectively prevent a grounding wire from falling off. Through a sealing cross rod structure, the problem that the grounding wire falls off is solved directly and fundamentally. The hook device is mainly composed of a main hook, an arc-shaped pressing piece, a torsion spring, an operating mechanism, a sealing transverse rod and the like. When the hook is hung on a lead, the sealing cross rod can be automatically opened; after being hung, the sealing cross rod can be automatically closed, and the operation mechanism can realize self-locking of the T-shaped sliding block, so that the sealing cross rod cannot be downwards opened; when the hook device needs to be taken down, only self-locking of the T-shaped sliding block needs to be removed, the sealing cross rod is opened downwards automatically, and then the hook device can be taken down smoothly; when the hook is hung on a wire, the arc-shaped pressing sheet can be tightly pressed on the outer side of the wire under the action of the torsion spring. The operating mechanism comprises a T-shaped sliding block with an inclined hole, a T-shaped sliding groove and a transverse pull rod.

Description

technical field [0001] The invention relates to the technical field of implementation of safety measures for grounding wire hooks after power outages for electrical equipment in power systems, in particular to a new type of lock-type grounding wire anti-corrosion device with a bottom opening in the safety measures for electrical equipment after power outages in substations or power transmission and distribution lines. Drop hook device. Background technique [0002] After the substation or power transmission and distribution lines are powered off, grounding wires should be installed on all possible power-incoming sides before the maintenance of electrical equipment begins, and effective preventive measures should be taken to prevent the grounding wire from falling off. Suspending the grounding wire is one of the technical measures that must be taken. If the installation and suspension of the grounding wire is not standardized, the suspension structure of the grounding wire is...

AI Technical Summary

Problems solved by technology

[0003] According to the survey, the grounding wire hooks used in the State Grid Corporation of China system are all hooks of the same standard and type. To a certain extent, the hooks can be firmly hung on the power failure wires, but in unexpected cases, external forces may change its hanging. The posture even directly knocks it off the power failure wire. There have been related casualties in the system, and there are many other cases of electric shock caused by the ground wire falling off. All the hooks with openings cannot completely prevent the ground wire from falling off.

The measures taken in the power system to prevent the grounding wire from falling off are generally safety disclosure before work and strengthening the monitoring of the suspension status of the grounding wire during work, or using the method of winding the grounding wire to strengthen and supplement this effect. Fundamentally did not solve the problem of ground wire falling off

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