Load switch convenient for replacing linkage mechanism

Abstract

The invention belongs to the field of load switches, particularly relates to a load switch with a linkage mechanism convenient to replace, and aims to solve the problems that an existing linkage mechanism is complicated to disassemble and replace, and a device for limiting the current state does not exist in the switching-off and switching-on states, so that the device cannot keep the switching-on and switching-off states for a long time. According to the technical scheme, the load switch comprises a box body and a moving contact, the inner wall of one side of the box body is fixedly connected with a static contact, the top of the static contact is fixedly connected with a first wiring board, the moving contact is used in cooperation with the static contact, and one side of the moving contact is fixedly connected with a first rotating rod. According to the invention, by arranging the limiting assembly and the braking assembly, braking of the first clamping rod and the second clamping rod is achieved, the situation that the device is loosened in the switching-on state and the switching-off state, and then accidents occur is avoided, the safety of the device is improved, and through the detachable insulating rod, detection and maintenance work is simpler.

Description

technical field [0001] The invention relates to the technical field of load switches, in particular to a load switch which is convenient for replacing a linkage mechanism. Background technique [0002] The load switch is generally equipped with a simple arc extinguishing device, but its structure is relatively simple. The picture shows a compressed air high-voltage load switch. Its working process is: when the brake is opened, under the action of the opening spring, the main shaft rotates clockwise. On the one hand, the piston moves upward through the crank slider mechanism to compress the gas; on the other hand On the one hand, through the transmission system composed of two sets of four-bar linkages, the main switch knife is opened first, and then the arc extinguishing knife is pushed to open the arc contact, and the compressed air in the cylinder blows out the arc through the nozzle. [0003] When the existing load switch is in use, the insulating part of the interlockin...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to solve the problem that the linkage mechanism in the prior art is cumbersome to disassemble and replace, and there is no device for limiting the current state in the opening and closing states, so that the device cannot be kept closed for a long time. Because of the shortcomings of the brake and opening state, a load switch that is easy to replace the linkage mechanism is proposed

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