Different from the commercial hardware standard, the civil hardware fittings are used for a long time, which are prone to many problems here and there. Different from the commercial hardware standard, the civil hardware fittings are used for a long time, which are prone to many problems here and there. Especially the door lock, which is a high load operation part, has a long service life and will inevitably have a little trouble. It is often found that some users and friends, the damage of the door lock at home is often caused by improper use or maintenance. Maintenance standard: in some cases, due to the gravity of the door leaf itself or the loose leaf of the door, the door leaf sinks and the door is not locked or 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 to avoid breaking the key and increasing trouble. The correct solution to the top ten brand products of locks in China: first, check the reasons. If the loose leaf causes the door leaf to sink, fix the loose leaf with screws. If the door frame is deformed or the cause is irrecoverable, start with the door frame and expand the locking tongue accordingly, so that the door can be opened and closed normally and smoothly. Some precautions for door lock maintenance: first, do not turn the key to open the door forcefully. Due to the gravity of the door leaf itself or the hinge of the door, the door leaf will sink and the door will not lock or open 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 to avoid breaking the key and increasing trouble.
The right solution: look at the reason first. If the loose leaf causes the door leaf to sink, fix the loose leaf with screws. If the door frame is deformed or the cause is irrecoverable, start with the door frame and expand the locking tongue accordingly, so that the door can be opened and closed normally and smoothly. 2. Don't use lubricant casually. Some friends often like to drip some lubricant into the lock eye when the door lock is astringent or tight. In this way, the whole lock body may be smooth immediately. However, because the oil is easy to stick to dust, it will be easy to accumulate dust in the lock eye and form oil putty, which will make the lock more prone to failure. Correct solution: sharpen some pencil fragments or some candle fragments, blow them into the lock cylinder through a thin tube, and then insert the key and turn it repeatedly.