Lifting machine safety blocking is used in mining area

The utility model discloses a lifting machine safety blocking is used in mining area, its structure includes: a button, the voltmeter, miniature circuit breaker, AC mutual inductor, provided is a contactor, the master control case, the shut control box, photoelectric sensor, the bottom plate, electrothermal relay, the connecting row, the normally open contact of the rela, the door plant, the doorplant adopts clearance fit to be fixed in master control case left side, the master control case is installed in shut control box left side and adopt the electricity to connect, be equipped with photoelectric sensor below the control box and adopt signal connection along separate routes, miniature circuit breaker is equipped with a plurality of AC mutual inductor of being fixed in left side and adopt the electricity to connect, the contactor below is fixed with electrothermal relay and adopt the screw connection, the utility model discloses photoelectric sensor is equipped with receiver tube,urceolus, big lid bucket,