How to determine the level of anti-theft door lock core? A-level lock
At present, a Class A anti-theft lock key has a key and a cross key. The inner structure of a-class lock core is very simple and is limited to the change of marbles, and the billiard slots are small and shallow. Technical opening time of 1 minutes, the mutual open rate is extremely high. The structure of marbles is a single row of marbles or cross locks.
B-Class lock key for the tablet, there are double-row billiard slots, with a class lock different place lies in the key side of a row of irregular lines. The main type of lock core is 3 kinds, computer double-row lock core, double row Crescent lock core, double-sided blade lock core. Non-technical opening time for 5 minutes, high rate of mutual open. Through the strong torsion tool, the lock core can be opened in 1 minutes. In general, the majority of the unified configuration of the lock core in the community to open a low-level or B-level anti-theft lock. According to the national standards, a Class A lock-core technology opening time for 1 minutes, B-level lock core technology open time for 5 minutes. And just a few minutes, it is impossible to fight the thief now use the high intelligent unlock tool, common a level anti-theft lock in the locked state, the thief using the tin foil matching tool, just a few seconds can be opened.
Ultra B-Level locks
The key shape is single-sided blade inner milling groove or outer milling slot key, the lock core type is Bian Zhu lock core; By the Ministry of Public security detect 270 minutes cannot be opened technology, regional mutual open rate is zero (one million one out of 10,000). Billiard structure is a double-row blade with V-shaped edge column locking; If the lock core is opened with a strong torsion tool, the inner destruction of the lock core, the lock dies from the explosion, which can not be opened. Because it is not easy to open, the highest anti-theft coefficient, home anti-theft recommend the use of Ultra B-level locks.
How to pick up anti-theft locks at high level? Small compilation summary, we can distinguish according to the following points:
1. Look at the "teeth" of the key. The more teeth, the deeper the teeth, the more complex arrangement, the more difficult to open, the better the anti-theft performance.
2. Lock on the Jin said two, a proportion of two watches the lock core. The heavier the weight, the better the quality of the lock core, the more beads inside the lock, the better the anti-theft function.
3. Choose the lock core to see the color, look at work than the color. Good quality lock core adopts electroplating treatment, smooth surface, bright luster. The color of deep yellow is copper core, relatively strong, anti-theft performance is better.