Live-line operation insulation flat ladder of power transmission line

Abstract

The invention provides a live-line operation insulation flat ladder of a power transmission line. The live-line operation insulation flat ladder comprises an insulation flat ladder body, wherein a hook is arranged at one end of the insulation flat ladder body and is hung on the power transmission line, a height adjustment device is arranged at the other end of the insulation flat ladder and comprises a horizontal rod, a connection rod and a support plate, a sleeve sleeves the horizontal rod, one end of the insulation flat ladder body is connected with the sleeve, the connection rod is arrangedat two ends of the horizontal rod, one end of the connection rod is fixedly connected with the horizontal rod, the other end of the connection rod is hinged with the support plate via a first rotation shaft, a first bevel gear is arranged at one end, penetrating through the support plate, of the first rotation shaft, a second rotation shaft is arranged on the support plate, a second bevel gear isarranged at one end, penetrating through the support plate, of the second rotation shaft and is engaged with the first bevel gear, the second bevel gear is fixedly connected with the second rotationshaft, the insulation flat ladder can be driven to swing upwards and downwards through the connection rod only by rotating the second rotation shaft, the heights of two ends of the insulation flat ladder are adjusted, an operator walks a downhill path all the way when getting in or out of an electric field, the labor intensity can be reduced, and the physical strength of an operator is saved.

Description

technical field [0001] The application relates to the field of live work on high-voltage transmission lines, in particular to an insulating flat ladder for live work on transmission lines. Background technique [0002] Live work on transmission lines can eliminate the defects of the transmission line itself without losing load on the transmission line, and can effectively improve the reliability of power supply in the power grid. One of the technical difficulties of live work is how to enter the electric field. At present, one of the common methods of entering the electric field for live work on high-voltage transmission lines is the method of entering the electric field with a flat ladder. The passage for workers to enter the electric field. [0003] The flat ladder in the prior art is only an insulating support device, and the two ends connected with the wire and the cross-arm of the tower are fixed connection points, and the height cannot be adjusted. Once the wire and t...

AI Technical Summary

Problems solved by technology

[0003] The flat ladder in the prior art is only an insulating support device, and the two ends connected with the wire and the cross-arm of the tower are fixed connection points, and the height cannot be adjusted. Once the wire and the cross-arm of the tower are not on the same level, it will cause two There is a height difference between the two ends, so that live workers spend a lot of energy entering and exiting the electric field along the flat ladder

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