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Anonymous users2024-01-24According to the principle of the lock cylinder, the anti-theft door lock can be divided into bullet lock, blade lock, magnetic lock, IC card lock, fingerprint lock, etc.
The lock cylinder of the anti-theft door is divided into A, B and super B levels according to the structure:
A-level: the key is flat, only single-sided single-row bullet slot, the cross key is basically A-level, and it only takes about two or three minutes to open;
Class B: From the key, it is a double-sided double-row bullet slot, even if there are tools, it takes some time for a skilled worker;
Super B level: It is the safest level at present, from the key to the general double-sided double-row bullet slot, there is a blade or curve next to it, its lock cylinder design technical standard is more than 270 minutes.
Yes, go to Taobao to buy cheap ones with good sales, don't buy expensive ones, look at the lock bell hole, don't buy the wrong lock handle, basically universal.
It's not bad to have this brand.
This lock is not broken, just the internal screws are loose. The teeth are misaligned and need to be removed. Tooth and tooth between the new pairing, and then tighten the screw to install it, if you don't know the mechanical principle, only ask someone to come to repair. But there is no need to change the locks.
It is recommended that you change the lock cylinder, which is convenient and affordable, and it is okay for Jindian Atom and Yuema's. About 90 yuan can be done. Of course, you can also swap out a whole set of locks. >>>More
Comparatively speaking, installing a fingerprint lock should have a higher security factor than installing a Class C lock. >>>More