Vacuum circuit breaker convenient to trip

The utility model discloses a vacuum circuit breaker convenient to trip, and belongs to the technical field of electric appliances. Comprising a main body device and a tripping device, the tripping device is arranged in the main body device, the main body device comprises a circuit breaker shell, a lock catch, a T-shaped rod and an integrated switch, a first fixing frame is arranged in the circuit breaker shell, a tripping spring is arranged on the side wall of the first fixing frame, the lock catch is arranged at the end of the tripping spring, and the integrated switch is arranged on the side wall of the lock catch. The integrated switch is provided with three switches connected in parallel, each switch is connected with a first power line, a second power line and a third power line, a clamping block is arranged at the end of the lock catch, a hinge seat is arranged in the circuit breaker shell, a cross rod at the top of the T-shaped rod is hinged to the hinge seat, and the requirements of the vacuum circui