Security knowledge and maintenance of anti-theft door

safety knowledge

According to their different structures, anti-theft security doors can be divided into three types: flat-open anti-theft security doors, fence-type anti-theft security doors and fence-type folding doors. But nowadays, the flat-opening anti-theft security doors are mainly used as household doors in residences, and the fence-type anti-theft security doors are mainly used in conjunction with building intercom electric control system products as building intercom doors for residential areas or residential walkways. Sliding doors are mainly used in small commercial shops.

daily maintenance

1. When the key cannot be fully inserted into the lock hole when opening the door, if it is in winter, first check whether there is ice in the key hole; in other seasons, check whether there is foreign matter in the key hole.

2. If you hear the sound of metal friction on the opening and closing door, you can try to drip a little lubricating oil on the hinge of the security door. If it does not work, you can find a professional maintenance worker.

3. When the anti-theft door is closed, the resistance is too large, and a little lubricating oil can also be applied to the movable lock tongue.

4. When installing the anti-theft door, it is necessary to fill the cement carefully, so that the door frame and the wall are effectively and tightly combined, so that the door body and the door frame can maintain a reasonable cooperation, and there is no need to worry about deformation for long-term use.

5. If it is difficult to insert the lock cylinder when opening the door, you can apply a little graphite. Or insert a pencil lead into the lock cylinder.

6. In severe cold areas, the problem of "overwintering" security doors is also very important, because the temperature difference between indoor and outdoor in severe cold areas is very large, and it is very easy to dampen the lock cylinder of the security door when hot and cold water flows, and then freeze. If the situation occurs, before winter comes, it is necessary to drop two drops of antifreeze oil in the lock cylinder in an appropriate amount, and then use gasoline or diesel to clean it after winter. Vegetable oil should not be used as a lubricant for the lock cylinder.