The door lock is arranged on the door or the door of the door, and the locking action is played. The door lock is mainly composed of a lock hook, a lock block, a force applying element, a rolling wheel, a lock door wheel, an electric safety electric shock and a triangle lock.

1, the lock hook lock, composed of locking effect, lock the door is not opened, the meshing depth is up to 7mm, more than 1000N endurance.

2, the application of force components to open the door automatically after the door lock, is a reset device (its failure, gravity can not open the door lock).

3, rolling wheel and unlock the door wheel is used, the elevator when the station, the door motor through a series of mechanical transmission, and ultimately use the door knife to drive the wheel and unlock the door open door lock, and pull the door open.

4, electrical safety electric shock is to verify the lock hook, lock gear mesh is more than 7mm, once the electrical safety electric shock off, the elevator shall not run.

5, triangle lock is used to open the door of the layer under abnormal circumstances, that is, the triangle of the lock, the non professionals must not use.