Different from commercial hardware standards, civil hardware accessories are used for a long time and are prone to many problems here and there. Especially for door locks, such high-load operation parts have a long service life, and it is inevitable that there will be a little failure. It is often found that some users and friends, the damage of the door lock in the 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 door lock may be smooth all over immediately, but because the oil tends to stick to dust, the keyhole will become Dust will easily accumulate inside, and form greasy putty, which makes the door lock more prone to malfunction.
The correct solution: sharpen some broken pencils or broken candles, blow them into the lock cylinder through a thin tube, and then insert the key and turn it several times.
The door does not open smoothly
Sometimes, due to the gravity of the door leaf or the door hinge, the door leaf sinks, and the door is locked or not opened smoothly. At this time, it is very difficult to open and lock the door with the key. At this time, do not twist the key forcibly, so as not to break the key and increase trouble.
The correct solution: you should check the reason first. If the door leaf is sinking due to loose leaf, fix the loose leaf with screws. If the door frame is deformed or the reason is irreversible, you can start with the door frame and expand the bolt accordingly, so that the door lock can open and close the door smoothly.
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