Switch cabinet interlocking device

The utility model relates to a component structure of a high-voltage switch cabinet, in particular to a switch cabinet interlocking device. The switch cabinet interlocking device comprises an auxiliary switch, the auxiliary switch is controlled according to breaking and closing position states of a main switch, a rotating shaft of the auxiliary switch is connected with an output crank arm, the output crank arm, a connecting rod and a transmission crank arm together form a linkage, the connecting rod is hinged with the transmission crank arm, the transmission crank arm is mounted on a fixed portion inside a switch cabinet via a rotating shaft in the middle of the transmission crank arm, one end of the transmission crank arm is hinged with a lifting rod capable of being lifted along with swinging of the transmission crank arm, the lower end of the lifting rod is connected with a baffle plate capable of being lifted along with the lifting rod, the baffle plate is disposed on the inner side of a switch cabinet panel, an operating hole inserted with a grounding switch operating handle is arranged on the switch cabinet panel, and the operating hole can be opened or closed by aid of lifting of the baffle plate. The switch cabinet interlocking device is simple in structure and reliable in action, and the grounding switch operating hole can be opened or closed directly by aid of the status auxiliary switch of the main switch, thereby achieving high locking reliability.