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Anonymous users2024-01-23It's very simple, inject some pencil foam into the lock hole of the lock cylinder and twist it a few times, if it doesn't work, then open the door, smear the pin head and pin hole with paraffin, no paraffin wax can be used with soap, can lubricate it, ensure Ok.
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Anonymous users2024-01-22I adjust the hinge, and the installation is not suitable.
Causes and solutions:
1. Check whether the anti-theft door key is correct and whether the anti-theft door key and lock are damaged. >>>More
It does not affect, the door lock anti-theft is mainly the function of the lock cylinder, the anti-theft knob is loose, as long as the lock cylinder inside the door lock is normal, it will not affect the anti-theft function, and the lock cylinder will affect the anti-theft function of the door lock.
The security door is easy to lock when it is open, and what to do if the door is not locked >>>More
If you lock the door with a hairpin or chain indoors, the thief has no choice but to break the door to open it.
Generally speaking, the main difference between burglar and fire protection of entrance doors is that the filling is different, security doors are usually filled with honeycomb paper or polyurethane foam, and fire doors are usually filled with expanded perlite slabs. Entrance doors usually have the function of anti-theft doors.