The door lock has been used for a long time, how should it be maintained?

Unlike commercial hardware standards, civilian hardware accessories are prone to many problems here and there after being used for a long time. Especially door locks, which are parts that operate under high loads, have a long service life, and there will inevitably be some failures. It is often found that for some users and friends, the damage to the door lock at home is often caused by improper use or maintenance.

Some things to pay attention to when maintaining door locks:

lubricant

Some friends often like to drip some lubricating oil into the keyhole when the door lock is astringent or tight. In this way, the whole body of the door lock may be smooth immediately, but because the oil is easy to stick to dust, the keyhole will It is easy to slowly accumulate dust in the interior of the door, forming a greasy residue, which makes the door lock more prone to failure.

The correct solution: cut some pencil scraps or some candle scraps, blow them into the lock cylinder through a thin tube, then insert the key and turn it several times repeatedly.

Poor opening of the door

Sometimes, due to the gravity of the door leaf itself, or the reason of the door leaf, the door leaf sinks, and the door locks or the door does not open smoothly. At this time, it is often very difficult to open and lock the door with a key. At this time, do not forcibly twist the key, so as not to break the key and increase trouble.

Correct solution: You should check the reason first. If the door leaf sinks due to a loose leaf, fix the loose leaf with screws. If the door frame is deformed or its cause is unrecoverable, you can start from the door frame and expand the lock tongue accordingly, so that the door lock can return to normal and smooth opening and closing.