Button mechanism of circuit breaker

The utility model provides a button mechanism of circuit breaker, includes face guard, button and transmission, the button install on the face guard, the button can slide for face guard straight line, transmission include relative driving plate and the center pin that sets up with the button, the driving plate rotate and to install on the center pin. Be equipped with the drive division respectively and dodge the portion on button and the corresponding tip lateral wall of driving plate, the drive division on be equipped with that to contact the drive be connected protruding with the surface of driving plate, dodge and be equipped with and dodge the clearance between portion and the driving plate to distance between drive division and the center pin is greater than the distance between portion of dodging and the center pin. The utility model provides a rapid operation, contact stability, simple structure's button mechanism of circuit breaker. 种断路器的按键机构，包括面罩、按钮和传动装置，所述的按钮安装在面罩上，按钮能够相对于面罩直线滑动，所述的传动装置包括与按钮相对设置的传动板