Inspection and maintenance methods of common anti-theft door lock faults

During the use of the anti-theft door lock, it is inevitable that various faults will occur. In general, we will seek the help of professional lock repair workers to repair the fault on site. In fact, Z's common anti-theft door lock fault can be repaired by itself. Today, we will explain to you the inspection and maintenance methods of common anti-theft door lock failures. Those who are interested will not learn.



1、 Maintenance method for the fault that the anti-theft door latch cannot pop out



When using the anti-theft door lock, the lock tongue suddenly cannot pop out of the lock body, which is mainly caused by the wear of the lock tongue spring.



Maintenance method: just pick up the lock tongue from the lock body, use a straight screwdriver to push the lock tongue out of the lock body trim, and hit the positioning opening of the lock tongue on the lock body trim with a hammer to make some deflection on the lock body. The problem that the anti-theft lock tongue cannot spring out can be solved successfully.

2、 Maintenance method of anti-theft door lock handle pressure not rebound

The handle of the anti-theft door lock is particularly prone to the problem that the handle cannot rebound due to long use time or incorrect use method. The reason why the handle does not rebound is that the handle lacks lubrication and the handle spring is broken.



Maintenance method: we can spray a proper amount of lubricating oil on the bottom of the anti-theft door lock handle to test whether the handle does not rebound can be solved. If the problem that the handle does not bounce after spraying lubricating oil has not been solved, you can only remove the door lock handle and replace the return spring.



3、 Fault maintenance method of key rotation force for anti-theft door lock



The door lock of the anti-theft door suddenly turns with the key, which is basically due to the lack of sufficient lubrication of the heaven and earth lock points.



Maintenance method: when the door is open, use the key to rotate out all the lock points, use oil or lock specific lubricating oil to smear the world lock points of the anti-theft door lock, and use the key to rotate the lock points, so that all the lock points can be sufficiently lubricated, and the problem of key rotation of the anti-theft door lock can be easily solved.



It should be noted that lubricating oil cannot be selected. The door lock is smeared with edible oil, which absorbs too much dust and increases the rotation force of the door lock.



4、 Maintenance method for the fault that the anti-theft door lock cannot be opened with the key



The external lock hole of the anti-theft door lock is easy to enter dust or foreign matters, which is particularly easy to cause the key not to enter the lock hole smoothly, resulting in the problem that the key cannot open the external lock.



Repair method: first use iron wire or paper clip to take out the foreign matters in the lock hole. Then, paint pencil powder on the key, and the anti-theft marble in the keyhole can be sufficiently lubricated, and the problem that the key cannot open the door can be successfully solved.



5、 Opening and closing maintenance method of anti-theft door lock



When the anti-theft door lock is opened or closed, it needs to be forcibly closed or opened. The reason is insufficient lubrication of the locking tongue and sagging of the door body.



Maintenance method: spray an appropriate amount of lubricating oil on the spring latch of the anti-theft lock. The test can solve the problem of opening and closing the door lock. If the trouble of opening and closing the door still exists after applying the lubricating oil, it is necessary to loosen the hinge screw, adjust the door body to the vertical state, and then fix the hinge screw again, so as to smoothly solve the problem of anti-theft door lock and opening and closing the door.



6、 Maintenance method for failure that the internal knob of anti-theft door lock cannot be locked



The common reason why the anti-theft door lock handle suddenly cannot be locked at night is due to the bending and deformation of the lock tongue.



Maintenance method: just rotate the lock tongue out of the night lock and check whether there is any bending problem. If only a vice is used to restore the impacted locking tongue to a proper position, the problem that the internal knob of the anti-theft door lock cannot be locked can be successfully solved.