Mechanical lifting device for cable trench cover plate of substation and switching station

Abstract

The invention relates to the technology for opening cable trench cover plates, in particular to a mechanical lifting device for cable trench cover plates in substations and switching stations. The invention solves the problems that the existing cable trench cover plate opening technology easily leads to poor sealing performance of the cable trench cover plate, consumes time and effort, and easily causes accidental injury to construction personnel. The mechanical lifting device for the cable trench cover of substations and switching stations includes a bracket part and a lifting part; the lifting part includes a Z-shaped handle, a chain, a hook, and a three-claw suction cup; the upper end of the first chain is wound and fixed on the Z The first horizontal edge of the crank handle; the first hook is fixed on the lower end of the first chain; the middle part of the second chain is hung on the first hook; the second hook and the third The suspension hooks are respectively fixed on the two ends of the second chain; the handles of the two three-claw suction cups are respectively hung on the second suspension hook and the third suspension hook. The invention is applicable to the opening of the cable trench cover plate.

Description

technical field

[0001] The invention relates to the technology for opening cable trench cover plates, in particular to a mechanical lifting device for cable trench cover plates in substations and switching stations. Background technique

[0002] The cable trenches of substations and switching stations are usually sealed with cover plates, which are used to prevent water from entering the cable trenches and to prevent damage to the electrical equipment in the cable trenches. When overhauling the electrical equipment in the cable trench, the cable trench cover needs to be opened. At present, construction workers mainly use tools such as steel shovels and crowbars to pry the cable trench cover, thereby opening the cable trench cover. Practice has shown that this kind of cable trench cover opening technology has the following problems due to its own principle limitations: First, the corners of the cable trench cover will be damaged after a long period of prying, which will caus...

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