The elevator landing door device is the door that people see outside the elevator, also called the elevator door header. Lift landing doors are generally composed of doors, rail racks, pulleys, sliders, door frames, sills, and other elevator landing door mechanism .
The opening and closing of the elevator landing door device are realized by the door-opening blades installed on the car doors. Each landing door device is equipped with a lift car door locking device . After the landing door is closed, the mechanical lock hook of the lift door locking device is inserted. At the same time, the landing door and the elevator landing door of the car have a fireproof effect in the building, which is used to divide the fireproof zone. The car door safety switch can ensure that the door cannot be closed in place or the elevator cannot run normally without being locked.