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What are the levels of locks?
2024-05-30
Locks are not only widely used in our daily life, but also shoulder the important task of guarding the safety of family life and property. Therefore, people have always paid more attention to the quality of locks. And now with the progress of science and technology, lock style, material, design have many different changes, but we according to their different quality, the lock is divided into several levels, these levels are what, they are what level characteristics, I believe the following introduction will reveal the answer to these questions.
Lock Level-Class A
Class A is the most primitive and unsafe lock cylinder. The owner's key is flat, with only one-sided and single-row bullet slots. Some cross keys are also classified as Class A. At present, there are mainly one-word keys and cross keys for A- level anti-theft lock keys on the market. The internal structure of the-level lock cylinder is very simple, limited to the change of the marble, and the marble slot is small and shallow. The anti-technical opening time is within 1 minute, and the mutual opening rate is extremely high. The marble structure is a single row of marble or cross lock.
Lock Level-Class B
Class B is a safer grade. Class B lock key is a flat key with double rows of marble slots. The difference from Class A lock is that the key surface has an additional row of curved and irregular lines. There are 3 main types of lock cylinders, computer double-row lock cylinder, double-row crescent lock cylinder, and double-sided blade lock cylinder. Anti-technical opening time within 5 minutes, high mutual opening rate. Through the strong torque tool, the lock cylinder can be opened within 1 minute.
Lock Level-Super B
Super Class B lock is currently the safest level. From the key, it is generally double-sided and double-row bullet slots, with a blade or curve next to it. The key shape is a single-sided blade inner milling groove or outer milling groove key, and the lock core type is a side column lock core. After 270 minutes of detection by the Ministry of Public Security, it cannot be technically opened, and the regional mutual opening rate is zero (1 in 16 million). The marble structure is double-row blades and V-shaped side posts for locking. If the lock cylinder is opened with a strong twisting tool, the interior of the lock cylinder will be damaged and locked by self-explosion, resulting in failure to open.
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