Overhead ground wire lifter

Abstract

The invention relates to an overhead ground wire lifter which comprises a rack body and lifting rods and is characterized in that the center of the rack body is provided with a through groove with a downward opening, two ends of the rack body are provided with screw holes, each lifting rod of which the surface is provided with threads is arranged in each screw hole, the upper part of each lifting rod is provided with a spanner and the lower end of each lifting rod is provided with a hanging wire hook. According to the overhead ground wire lifter, a double-lifting-point lifting structure is adopted, other protection measures are not needed to be taken during operation, so that the fieldwork quantity is reduced, and the efficiency is improved; the generality is strong, by virtue of controlling the width size of the groove of the rack body, the overhead ground wire lifter can adapt to all existing tower shapes of 220-500Kv; the lifting stroke of the lifting rod is long, so that the operation requirements can be met; the overhead ground wire lifter is simple in structure and convenient to use.

Description

technical field [0001] The invention relates to a power maintenance tool, in particular to an overhead ground wire lifter used for maintenance and repair of high-voltage transmission lines. Background technique [0002] The overhead ground wire in the high-voltage transmission line is an important equipment to reduce lightning accidents and improve the safety of line operation. Due to the wind in the field, the overhead ground wire will swing and vibrate frequently and irregularly, which will cause serious wear and tear on the hardware carrying the overhead ground wire. , If it is not discovered and replaced in time, it will cause major accidents such as the breakage of the hardware, the drop of the overhead ground wire, and the discharge of the wire. Therefore, the overhead ground wire must be inspected and maintained frequently. When repairing or replacing overhead ground wire fittings, it is necessary to use specific tools to lift the overhead ground wire. At present, su...

AI Technical Summary

Problems solved by technology

At present, such tools used in power systems generally have the following deficiencies: First, for safety reasons, the lifting point at the upper end of the tool is not high enough, resulting in a small distance between the lifting point and the overhead ground wire, and it is impossible to lift the overhead ground wire to the point where it can be replaced The second is that the tool is hoisted at a single lifting point, and backup protection measures must be taken to prevent the overhead ground wire from falling off during the operation, which increases the workload on the site; the third is that the tool has poor versatility. Operators must prepare two or more lifting tools, otherwise they cannot be replaced if they are of different types

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