A special lifting and maintenance tool for handcart circuit breakers in the switch room

Abstract

The invention provides a lifting overhauling tool special for a handcart breaker in a switch room. The lifting overhauling tool comprises a base, vertical rods, a moment arm, a hook and a hydraulic pump, wherein the base is used for providing a support; the vertical rods are arranged at the upper end of the base; one end of the moment arm is in hinge connection with the top ends of the vertical rods; the hook is connected with the other end of the moment arm; and the hydraulic pump is arranged between the vertical rods and the moment arm, and used for providing lifting force. Through adoption of the lifting overhauling tool special for the handcart breaker in the switch room provided by the invention, the current situation that large-sized hoisting machinery such as conventional cranes and forklifts cannot enter the switch room to overhaul the handcart breaker is changed. The special lifting overhauling tool provided by the invention can be folded during transportation and while entering and exiting from the switch room in order to be carried and moved in a size reducing form. When the special lifting overhauling tool is moved into the switch room, the lifting overhauling tool is unfolded as required to realize overhauling of the handcart breaker.

Description

technical field [0001] The invention belongs to the technical field of maintenance devices, in particular, the invention relates to a special hoisting and maintenance tool for a handcart circuit breaker in a switch room. Background technique [0002] Handcart circuit breakers are frequently used electrical equipment in switch rooms, and their number is on the rise. According to relevant statistics, 30% of the defects of the handcart circuit breaker are at the bottom of the handcart circuit breaker. These defects include the mechanical parts in the chassis, the electrical circuit, and the insulating rods, arc extinguishing chambers, buffers, etc. at the bottom of the circuit breaker. , When dealing with such defects, it is necessary to transfer the circuit breaker from the handcart to the ground or put it down on a fixed platform. Since the circuit breaker is made of all metal, the weight of a single unit is 180-250kg, and the height of the handcart is about 80cm, and the in...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a special lifting and maintenance tool for handcart circuit breakers in the switch room, so as to at least solve the technical problem in the prior art that large hoisting machinery such as cranes and forklifts cannot enter the switch room for maintenance of handcart circuit breakers

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