How to classify the security door lock cylinder? Smart lock A, B, C lock core What is the difference? How to distinguish? In the field of anti-theft door locks, according to the security level and the blasting time, anti-theft locks are divided into three national standards: A grade, B grade, and C grade. As for the hot B grade lock core, there is no national standard, but the industry recognized grade , Here is a differentiated introduction, so that consumers have a good idea. The following is a detailed introduction.
Anti-theft door lock core level: The anti-theft door lock core used in the market is basically divided into three levels, namely, A level, B level, Super B level (also known as C level). According to the "National Machinery Lock Standard" anti-theft door lock core A and B are two levels, Super B level is an enhanced version of the entrepreneur to develop another B level.
Cylinder level certification is a standard released in 1994 and is still in use today. The distinction is as follows:
1. What is A-level anti-theft lock?
The standard anti-theft doors sold on the market today are mostly Class A anti-theft mechanical locks, which are single-row bead lock cylinder mechanical anti-theft locks, also known as the mortise locks.
The A-stage lock prevents technical unlocking for less than 1 minute and prevents destructive opening time of not less than 15 minutes.
2. What is a B-level anti-theft lock?
Class B locks: Class B lock keys are flat keys with double row of marble slots. Unlike A-level locks, the key face is more than a row of curved and irregular lines. The main types of lock cylinders are 3 kinds, computer double row lock cores, double row crescent lock cores, double-sided blade lock cores. Anti-technical opening time within 5 minutes, high open rate. With a strong twist tool, the lock cylinder can be opened within 1 minute.
3, what is the super B level anti-theft lock?
Super-B lock (C-class): The key shape is a single-sided blade inner groove or external slot key, the type of lock cylinder is the side column lock core; after the Ministry of Public Security detects 270 minutes, the technology cannot be opened, and the area open rate is zero ( One-sixteen millionth). The marble structure is double row vane and V-side column lock; if the lock cylinder is opened with strong twist tool, the lock cylinder is damaged inside, and it is locked by self-explosion, and it cannot be opened.
4, what is the super B class anti-theft lock?
Super B-level lock: The key shape is a single-sided blade inner slot or external slot key. The type of the cylinder is the side cylinder lock core. After the Ministry of Public Security detects 270 minutes, it cannot open the technology. The area open rate is zero (1,600 One millionth). The marble structure is double row vane and V-side column lock; if the lock cylinder is opened with strong twist tool, the lock cylinder is damaged inside, and it is locked by self-explosion, and it cannot be opened.
5. What is a C-class anti-theft lock?
Most people are not exposed to this kind of lock, and there is no industry standard for C-stage lock cores. Therefore, the market is generally known as C-level locks are false propaganda, consumers need to be rational.
How to distinguish the level of anti-theft door lock cylinderIdentify the anti-theft door lock cylinder level: the best way to anti-theft lock level is to use the key to identify, a look at the key can easily understand the level of anti-theft lock!
The definition of technical opening: The ability of professional technicians who use locks to use special tools to open locks.
Destructive open violence Open definition: use electric drills, pipe wrenches, pliers, crowbars, Screwdrivers, wire pull tools, hacksaws, and saw blades. Do a lot of powerful damage to the lock part, open the lock ability.
The national standards of A-class lock and B-class lock are not the same as the opening time of anti-damaging, but in the actual unlocking, the use of pliers, crowbars, screwdrivers, toggle tools, hacksaw open, Class A lock and Class B lock can not It can be turned on in one minute.
So the A-level and B-level violence prevention are all the same, except that national standards and experimental methods are inaccurate.
Class c countries useless standards, can be converted in accordance with the European Security Association standards, leaf lock in the EU standards, is a heavy-duty anti-theft locks, vault door locks, there is no unlock tool can be opened in 3 hours, and very anti-interruption Unlock and unlock.
The above is about the lock core of each level of knowledge, welcome to pay attention to smart lock China Network, more professional knowledge information is welcome.
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