elevator landing door device BST T2203-C2A 2 panel center opening landing mechanism parts

The elevator landing door, also known as the hall door, is the door that people see outside the elevator. Elevator floor doors are generally composed of doors, guide rails, pulleys, sliders, door frames, sills, and other components. These components work together to ensure stable opening and closing of the landing door. The elevator landing door hs the following function: (1) Safety protection: The main function of the elevator landing door is to close before the elevator car is about to leave the landing position, separate personnel at the landing, and prevent falling and shearing accidents. The landing door is equipped with a door lock to prevent passengers from manually opening the landing door at the station, which may cause danger such as personnel falling. (2) Starting condition: After the landing door is closed, the mechanical locking hook of the door lock is engaged, and at the same time, the electrical interlocking contact between the landing door and the car door is closed, and the elevator control circuit is connected. Only then can the elevator start running. (3) Fireproof Function: Elevator floor doors also have a fireproof function in buildings, used to divide fire zones to comply with building fire safety regulations.