1results about How to "Realize emergency stop" patented technology

The application discloses a control device facilitating the stretching and contraction of a ladder chain and a teaching escalator, belongs to the technical field of escalator detection, and is used for controlling the deviation of a chain wheel disc and a ladder chain of the teaching escalator to touch a stroke switch to realize emergency stop, a limiting hole is formed in a mounting side plate, a mounting bearing is slidingly arranged in the limiting hole, a pushing plate is connected with the outer ring of the mounting bearing, a supporting plate is arranged on the mounting side plate and located beside the limiting hole, a first end of an adjusting piece is used for abutting against the supporting plate after penetrating through a preset threaded hole of the supporting plate, the adjusting piece is twisted to abut against the pushing plate through the first end, and then the mounting bearing, a wheel disc mounting shaft and the chain wheel disc are deviated to touch the stroke switch. The adjusting piece is used for driving the deviation movement of the mounting bearing, the wheel disc mounting shaft, the chain wheel disc and the ladder chain as a whole to touch the stroke switch, simulates the fault of ladder chain fracture, and supplements the function of the teaching equipment.