What if the door doesn't always close tightly?

Fold the newspaper into pieces, stick it on the door and sew it, or nail a piece of rubber, or stick several layers of tape, install a bolt and change the door. The biggest possibility is that the door is opened and closed too many times, and the door lock and door gusset are somewhat misplaced. The door lock is not tight, or the induction circuit board in the automatic door lock is aging and the recognition is not bright, resulting in the door lock buckle is not tight. It is also possible that the internal parts of the lock cylinder are worn and damaged, which makes the door more boring.

Two common problems were found in locking and replacement:

1, generally speaking, the door hangs down, which means you have to lift the handle to lock or open the door. You can file the whole lock on the door frame with a steel file until you don't need to lift the handle to lock the door.

2. In addition, the door has been deformed in the vertical direction and can only be locked by pulling the door hard. There will be a sound of collapse when opening the door. You can file it in the direction of opening the door with a steel file (from the inside of the door to the inside of the house, and vice versa).