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Anonymous users2024-01-24The square rod hole has a pair of crossing, and there is a kind of blocking, which is a single unlocking lock body through it, and the blocked lock body can be lifted up to the anti-lock function, solution: 1, change a pair of lock body.
2. Change to a short square pole.
The lock cylinder is broken! It is recommended to take a few more keys and try to add some vegetable oil to the lock cylinder, but only to change the lock cylinder.
Under normal circumstances, the door lock can not be retracted, it is estimated that it should be the deadbolt, there are two possibilities, one is that the lock body is broken, and the transmission mechanism cannot drive the deadbolt to rebound, so it is OK to replace the lock body. The other is the problem of the lock cylinder, the cam (fork) of the lock body cannot be driven by the lock cylinder, resulting in the failure of the deadbolt to rebound. This is usually due to the damage to the internal structure of the pin or the lock cylinder, and the lock cylinder needs to be replaced. >>>More
The fastest way is to reset the pins, if you can't reset them, drill the lock cylinder with an electric drill, take out all the pins and then unscrew the lock cylinder to replace it.
Where to buy it, there are usually tutorials! That's not right. If you can remove it, you can install it according to the original way, it is okay Generally, there are 3 screws in the lock cylinder of the anti-theft door. 1 fixed cylinder, 2 fixed caps!
Don't be able to lubricate the oil, because the lubricating oil is easy to get dust on the key, and it is easy to get into the lock cylinder if you open the door again. It is best to grind with a pencil or have soap. If you still can't open it, you can only find a lock picking company.