OPERATING MECHANISM OF CIRCUIT BREAKER

摘要

An operating mechanism (107) of a circuit breaker, comprising: a tripping component (100), a left side plate component (101), a right side plate component (104), a latch component (102), a half shaft component (103), a lever component (105) and a main shaft component (106). The tripping component, the latch component, the half shaft component and the lever component are mounted between the left side plate component and the right side plate component. The main shaft component runs through the left side plate component and the right side plate component and extends out of the left side plate component and the right side plate component. The lever component comprises a sheet metal bending piece (228), the sheet metal bending piece being bent to form a top wall and two side walls. The tripping component, the latch component, the half shaft component, the lever component and the main shaft component are linked. The tripping component and the latch component form secondary latch. The operating mechanism of a circuit breaker is a manual operating mechanism. Contact parameters are transferred based on an external metal main shaft, thereby ensuring the uniformity of the contact parameters, and reducing the cost and the process difficulty. The operating mechanism has assembly convenience, the performance of the operating mechanism can be effectively improved, and requirements of a high-performance circuit breaker are met.