Working ladder for overhead electric power circuit maintenance

Abstract

The invention discloses a working ladder for overhead electric power circuit maintenance. The working ladder comprises two vertical columns, a plurality of cross rods, a safety cage, an overturning rest platform, a fixed table plate and safety hooks, the vertical columns are parallelly arranged, the cross rods are vertically welded between the vertical columns, abrasion-resistant supporting leg sheaths wrap the bottom ends of the vertical columns, and the safety hooks are connected at the top ends of the vertical columns. The working ladder does not easily topple over or turn on one's side, asafety coefficient of a maintainer is improved, climbing of the maintainer is facilitated, the overturning rest platform is conveniently unfolded, so that the maintainer stands on the overturning restplatform to take a rest or maintain circuits, restores and saves physical power, falling of the maintainer is prevented, the overturning rest platform is conveniently folded and does not prevent themaintainer from climbing or standing on the cross rods among the safety cage and the vertical columns, climbing and using convenience of the maintainer is improved, and the working ladder is applicable to maintenance of overhead electric power circuits.

Description

technical field [0001] The invention relates to the technical field of power maintenance tools, in particular to a working ladder used for maintenance of high-altitude power lines. Background technique [0002] In recent years, due to the new construction and expansion of the line, the height of the iron tower has generally been increased. Under the action of external force, high-voltage transmission lines often have disconnection or short-circuit problems. Usually a working ladder is used to climb up to the power line for maintenance. [0003] At present, a soft ladder is generally used for inspection and maintenance. The soft ladder is first hung on the wire, and then the ground coordinators grasp the soft ladder, and the aerial workers climb to the head of the ladder to start the wiring work. Chinese patent (authorized announcement number: CN202651688U) discloses a high-altitude operation device for high-voltage transmission line maintenance, although it can greatly red...

AI Technical Summary

Problems solved by technology

However, it increases the labor intensity of maintenance personnel and cannot rest and restore physical strength, so it is not suitable for maintenance of high-altitude power lines.

Although the ladder with steel structure solves the problem of hard climbing of the soft ladder, it is supported on the ground and needs an auxiliary support frame to support it, and the upper end of the ladder cannot be fixed, and it will still roll over when the center of gravity is unstable, which is also difficult to satisfy. Maintenance and use of high-altitude power lines

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