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Anonymous users2024-01-23The small bolt is not the same as the key anti-lock. The small bolt can only be bolted to one lock post, and the key reverse lock is the lock post in the three directions above and below the door frame. If the reverse lock does not work, check whether there is cement in the keyholes in the three directions of the door frame.
Class A lock: At present, the Class A anti-theft lock key on the market mainly includes a word key and a cross key. The internal structure of the A-grade lock cylinder is very simple, limited to the variation of the pin, and the marble groove is few and shallow. >>>More
Anti-lock door means that it is locked from one side of the security door and the other side cannot be opened. Therefore, many security doors are two-way anti-locking. For example, if you lock from the inside, it means that the lock is on the inside, and the person on the outside cannot open it, which is called the internal lock. >>>More
There is a key to open with a key, no key to find a lock company, I am afraid that the door will be broken, and I have to change the door, the gain outweighs the loss.
Is the anti-lock under your key open? If you can't open it, remove the screws, and then buy a lock cylinder to replace it.
This one is actually very simple, you can remove the handle and use a flathead screwdriver.