Anti-off-line switch type equipment maintenance operation vehicle

Abstract

The invention provides an anti-off-line switch type equipment maintenance operation vehicle. The vehicle comprises a frame, a longitudinal beam arranged on the frame, a carrying platform slidably connected with the longitudinal beam, an operation box arranged on the longitudinal beam, a wire winding roller arranged in the operation box, an on-beam hanging wheel arranged at the top end of the longitudinal beam, a carrying hanging wheel arranged on the carrying platform and a thread-off preventing device arranged on the operation box. The thread-off preventing device comprises a hinge cross shaft, a swing arm connected with the hinge cross shaft, a thread-off wheel arranged on the swing arm, a tension spring for tensioning the swing arm, and a thread-off prevention pawl arranged at one end of the hinge cross shaft. Once the carrying platform is in contact with the frame and continues to reversely shake a crank, the steel wire rope is loosened, a ratchet wheel and the pawl are locked under the action of the tension spring, the crank cannot be continuously reversely shaken, and maintenance vehicle faults caused by thread-off and even disordered winding of the steel wire rope are avoided; and a labor-saving device is arranged between the thread-off prevention ratchet wheel and the wire winding roller, so that both forward shaking and backward shaking are labor-saving, and the working labor intensity of workers is reduced.

Description

technical field [0001] The invention relates to the technical field of switch equipment operation vehicle, which is used to realize the moving in and out of the switch equipment in the protection box, in particular to an off-line prevention switch equipment maintenance operation vehicle. Background technique [0002] "Switching equipment" is named for its arc extinguishing medium and the insulating medium of the contact gap after arc extinguishing are high vacuum; it has the advantages of being suitable for frequent operation and arc extinguishing without maintenance, and is widely used in distribution networks , High and low voltage switching equipment can be configured in central cabinets, double cabinets and fixed cabinets as control and protection of high voltage electrical equipment. [0003] As stated in the patent application publication number CN108321710A, a multifunctional handcart type circuit breaker maintenance vehicle (subsequently referred to as the prior art ...

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to solve the laborious and anti-offline technical problems when the maintenance operation car of the switch type equipment in the prior art rotates clockwise and counterclockwise

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