Auto door unlock and open coordination between the actions applied to automatic sliding door lock lock belt solenoid lock and lock the door of the hanging pieces of electric locks, lock motor of the three. Latter is used for heavy duty automatic sliding door, automatic door electronic lock solenoid door stopper, the electronic latch locks and electronic door opener, electronic door does not affect the direction of force of door-opening action, prone to misuse. There is a mechanical lock contact switch, combination lock and switch, locking in the unlocked state, contacts cannot contact unlikely misuse