Operating mechanism of circuit breaker

An operating mechanism of a circuit breaker, comprising a bracket, a rocker arm assembly, a jump buckle, a latch, a re-buckle, a first crank, a first spring and a first connecting rod, wherein the rocker arm assembly, the jump buckle, the latch and the re-buckle are pivotally disposed on the bracket respectively, the jump buckle is in latching fit with the latch, and the re-buckle is in limiting fit with the latch;

• one end of the first crank is pivotally disposed on the jump buckle around a first axis, and another end of the first crank is rotatably connected to one end of the first connecting rod around a second axis;
• the rocker arm assembly is driving connection with the first crank through the first spring;
• and
• the operating mechanism further comprises slide rails disposed on the bracket, and a slider slidably disposed on the slide rails, wherein the slider is rotatably connected to another end of the first connecting rod, and the slider is in driving fit with a moving contact mechanism of the circuit breaker.