The joint adjustment between the hall door and the door cover can be adjusted by connecting the screws between the hall door and the upper sill. Loosen the hall door fixing screw, adjust the ideal gap between the hall door and the door cover, and tighten it.

Passenger elevator 1-6mm, freight elevator 1-8mm.

Article 7. 1 of Safety Code for Elevator Manufacture and Installation has relevant provisions:

No-hole hall door should be installed at the opening where the elevator shaft enters the car. After the doors are closed, the gaps between doors, between doors and columns, between lintels and windowsills should be as small as possible.

Extended data:

Elevator landing doors (outer doors) shall be imperforate doors with a clear height of not less than 2m. After the landing door is closed, the gaps between the door leaves and between the door leaves and the columns, lintels and sill should be as small as possible. The passenger elevator should be 1-6mm, and the freight elevator should be 1-8mm. ?

In order to avoid the danger of shearing during operation, the outer surface of the automatic landing door should not have concave and convex parts larger than 3 mm (except triangle lock). The edges of these recesses or protrusions should be chamfered in two directions. Layered doors with locks should have certain mechanical strength.

Baidu Encyclopedia-Safety Code for Elevator Manufacture and Installation