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In our lives, basically every household to install door locks, home security to protect their own property, we often encounter a variety of levels of lock in the purchase of anti-theft locks when you lock which has several levels How to distinguish the level of anti-theft door lock, the following text will introduce it to you.
What are the levels of locks: Class A locks
A-level lock is our most common and common type of lock, and its safety performance is relatively low. Generally, the keys of A-level locks are flat, and the shape is a single-sided single-row bullet slot. At the same time, some cross keys also belong to the category of A-level locks. At present, the A-level anti-theft lock keys on the market are mainly divided into two types: a straight key and a cross key. The A-level lock has a simple internal structure and usually only changes between the marbles. The opening time of the anti-technique is only 1 minute, and the mutual opening rate is very high.
What are the two levels of locks: B-level locks
Class B lock is a kind of safer lock. Its key is usually a flat key with a double row of billiard slots inside. The biggest difference between it and Class A lock is that the key surface adds a row of curved irregular lines. Its lock The core is mainly divided into three types: computer double-row lock core, double-row crescent lock core, and double-sided blade lock core. The anti-technical opening time is usually within 5 minutes, and the mutual opening rate is relatively high. If you use a strong twist tool, you only need It can be opened in 1 minute.
What are the three levels of locks: Super B-level locks
Super-B lock is the lock with the highest security level. Its key uses double-sided double-row bullet grooves, and there will be a blade or curve on the side. The key shape of the super-B lock is a single-sided blade internal milling groove Or external milling slot, using side column lock core, and the technology cannot be opened after 270 minutes of detection by the public security department. The mutual opening rate is almost zero. If a strong twisting tool is used to open, the internal structure of the lock core will be destroyed and self-explosion locks up. , And cannot be opened.
How to distinguish the level of anti-theft door lock
1, surely we have some understanding of the level of anti-theft door locks, the main difference between them is that the lock cylinder designs are different, so are the easiest way to level anti-theft lock cylinder is to check the internal structure, but need to see the lock cylinder To It is usually more troublesome to remove all the locks on the outside. Therefore, the most common method for us to identify the level of the anti-theft door lock is to check the shape of the key.
2. Commonly used A-class anti-theft locks have the shape of a cross, a word, a word computer, and crescent. The shape of Class B anti-theft locks includes crescent multi-row, double-row in one word, double-row in one word and other shapes. The key shape of the super-B anti-theft lock is crescent double-row, double-row anti-extraction, triple-row keys, heterosexual double-row keys, etc.
Article Summary: The above is about the level of the lock, which has several levels and how to distinguish anti-theft locks of related presentations, so that we hope to have a lock on the appropriate understanding, we buy locks, choose the best level of security more High, safety is more guaranteed.
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