Switching device

The invention relates to a switching device, which comprises an isolating circuit breaker, an earthing switch, and an operating mechanism is shared by the isolating circuit breaker and the earthing switch; a power unit of the operating mechanism comprises an output rotating shaft, and the output rotating shaft is in transmission connection with a moving contact of the isolating circuit breaker through a connecting lever, and an earthing cutter arbor is in transmission connection with the output rotating shaft through a selection drive transmission mechanism; the selection drive transmission mechanism enables the earthing cutter arbor to be driven by the output rotating shaft to be switched on only when switch-off of the isolating circuit breaker is in place, and enables the circuit breaker to be driven by the output rotating shaft to be switched on only when switch-off of the earthing cutter arbor is in place. The switching device uses the same set of operating mechanism to drive the isolating circuit breaker