Bouncing-prevention buffer mechanism of low-voltage switch

Abstract

The invention relates to a bouncing-prevention buffer mechanism of a low-voltage switch. The bouncing-prevention buffer mechanism comprises a mechanism main shaft support (1), wherein a half-groove hole (101) is formed in the mechanism main shaft support (1), the bouncing-prevention buffer mechanism is characterized in that a bouncing-prevention module (3) is arranged on an inner side surface of the mechanism main shaft support (1) and comprises a resistance plate (301), the resistance plate (301) is arranged on a fulcrum shaft (102), the fulcrum shaft (102) extends out of the inner side surface of the mechanism main shaft support (1), and a clamping hook (301a) is arranged on the resistance plate (301) and can be used for clamping a strut (201a) extending out of an outer side surface of an upper cantilever (201) of a mechanism main shaft (2) during breaking. In the bouncing-prevention buffer mechanism, the bouncing-prevention module is arranged on a side surface of a support of a mainshaft cantilever of a fixed mechanism, a buffer piece is arranged on the support and have an effect of a buffer force, the bouncing-prevention device and the support are combined, the mechanism mainshaft can be fixed and flexibly rotate, the cantilever of a switch main shaft also can be effectively prevented from bouncing, the bouncing-prevention buffer mechanism is relatively convenient to install and maintain, and the maintenance cost is reduced.

Description

technical field [0001] The invention belongs to the technical field of low-voltage switches, and in particular relates to an anti-bounce buffer mechanism for low-voltage switches. Background technique [0002] During the closing operation of the switch, the cantilever main shaft links the moving contact to make the moving contact rotate in the direction of the switch bottom plate. During this process, the reaction spring of the operating mechanism itself is stretched, and the spring force of the reaction spring is overcome. ; There is a contact spring on the moving contact. After the switch completes the closing operation, the contact spring is compressed to provide the contact pressure when the switch is closed. [0003] When the switch is opened, under the reaction force of the reaction spring tension of the operating mechanism and the spring pressure of the moving contact, the cantilever main shaft of the operating mechanism rotates rapidly, and the moving contact rotates...

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is aimed at the technical defect of the poor stability of the anti-bounce device of the above-mentioned existing low-voltage switch, and provides a kind of anti-bounce buffer mechanism of the low-voltage switch. Install the buffer to play the role of buffer force, and combine the anti-bounce device and the bracket into one, not only can fix the main shaft of the mechanism and rotate flexibly, but also can effectively restrain the cantilever of the switch main shaft from bouncing, the installation and maintenance are more convenient, and the maintenance is reduced cost

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