Interlocking device between electric grounding switch and circuit breaker

The invention discloses an interlocking device between a grounding switch and a circuit breaker for electric operation of a switch cabinet so as to solve the problem that the grounding switch and the circuit breaker can not be locked during the electric operation of the grounding switch of the existing movable switch cabinet. An interlocking shifting block and a crank are fixedly arranged on an operating shaft by using elastic pins, a lever support and an interlocking shaft are arranged on the cabinet body of the switch cabinet, a lever mechanism is assembled on the lever support, a small crank, a shifting fork, a return spring and an interlocking push plate are arranged on the interlocking shaft by using screws for fixing, and the small crank is connected with a baffle plate through a sliding connecting plate. When the grounding switch carries out closing operation under the drive of an electric mechanism, a big shaft of the grounding switch can drive the operating shaft to rotate through a connecting rod mechanical, thereby leading the interlocking shaft to rotate through the shifting fork and the lever mechanism, further driving the interlocking push plate to extend forward, pushing a lock tongue plate on a ground jigger of the circuit breaker to move and realizing the locking of the circuit breaker during the closing of the grounding switch. The interlocking device has simple structure, precise actions and high reliability and can realize the interlocking which can not affect manual operation during the electric operation.