Improved switch cabinet

The utility model discloses an improved switch cabinet, which comprises an electrical cabinet body, a control cabinet body connected with the right side of the electrical cabinet body in a nested manner, an isolating switch arranged right above the electrical cabinet body, a solid-sealed polar pole connected right below the isolating switch, and a locking groove plate fixed on the outer side of the solid-sealed polar pole through a bolt, and further comprises an electrified sensor, the electrified sensor is installed on the outer side of the locking groove plate, the other end of the electrified sensor is connected with a grounding switch, and a shock-proof spring column is arranged on the left side of the locking groove plate; and the opening and closing knife switch is installed on the outer side of the isolation switch, and a grounding wire hole is formed in the outer side of the control cabinet body in a penetrating mode. The improved switch cabinet is provided with the cabinet door lock arm, and the elec