Locking structure of disconnecting switch

The utility model discloses a locking structure of an isolating switch, which comprises a shell, an operating knob positioned outside the shell and an operating mechanism positioned in the shell, the operating knob and the operating mechanism are arranged in a transmission manner, and the angle of the operating knob from opening to closing is not less than 45 degrees; wherein the device further comprises a locking device, and the locking device and the shell are arranged in a detachable mode, or the locking device and the shell are arranged in a rotatable mode, or the locking device and the shell are arranged in a movable mode. The locking device is provided with a first position for limiting the rotation of the second lock catch so as to limit the rotation of the second lock catch, so that the jump pin, the first lock catch and the second lock catch are stably in a steady state; and the locking device is separated from the first position after being driven by external force so as to release the limitation on