Help, how to open the wooden door lock without a key?

1. If your house is a corner lock, the door lock suddenly won't open, which is probably caused by the failure of the locking tongue. At this time, you can unscrew the lock, repair the lock tongue, or change the lock again. And then you can open the door lock.

2. If it is a secondary lock (mostly installed in iron gates and Liuhua copper doors), the locking bolt or the fixing screw of the handle oblique tongue is loose and protruding, and the door frame cannot be opened. At this time, you can find a flat screwdriver and push the protruding screw inward from the crack of the door to locate it.

3. If it is a ball lock, please look carefully at the side with the lock button. Generally, there is a round hole under the handle of a lock, and there is a protrusion similar to a gear inside. Press the protrusion hard with a small screwdriver, drag the handle outward, remove the handle, and check whether the lock button is abnormal. Usually this situation is caused by locking the door while turning the handle. Just reset the lock button.

4. If it is a right-angle lock, please remove the keyhole side, apply some lubricating oil to the center of the lock shaft, and then turn it several times with the key.