Safety display device interlocked with grounding wire and disconnecting switch

The invention discloses a safety display device interlocked with a grounding wire and an isolating switch, which comprises an isolating switch state and grounding wire detection circuit, a display outer frame and a connecting wire at the rear side of the display outer frame, and is characterized in that the isolating switch state and grounding wire detection circuit is provided with a relay and a sensor; an isolating switch on-off signal and a grounding wire physical detection signal are connected in series to control a display screen, display and switching of the live-line state of the vehicle depot contact network are achieved, safety prompt is provided for maintenance workers, and through arrangement of a side plate, a mounting bolt, a sliding groove, security glass and upper security glass, the safety of the maintenance workers is improved. When a shelter discarded by a maintainer in a vehicle depot is blown by wind to be adhered to the display screen to be blocked, the blocked shelter ...