Safety interlocking device of switch cabinet

The utility model discloses a safety interlocking device of a switch cabinet, which relates to the technical field of switch cabinets and comprises a shell and a telescopic component, the shell is arranged on one side of a cross beam far away from a cabinet door, the cross beam is arranged in a cross beam switch cabinet, a driving prism is rotatably connected in the shell, one end of the driving prism sequentially penetrates through one end of the shell and the cross beam, and the other end of the driving prism penetrates through the telescopic component. A static contact fixedly penetrates through the other end of the shell, a movable contact is fixed to the end, close to the static contact, of the driving prism, the driving prism rotates clockwise to drive the movable contact to make contact with the static contact, the static contact and the movable contact are both electrically connected with a switch cabinet grounding switch, the switch cabinet grounding switch is electrically connected with a power conn