Teach you how to identify the security door lock level
Nowadays, there are many kinds of anti-theft locks on the market, which often make consumers dazzling and have no choice. Today, telling you how to distinguish the level of anti-theft door locks, the locks on the market can basically be divided into three levels: A-class, super-B-class. Super C grade. The security door lock cylinder level is judged, we can distinguish it from the key. The best way to identify the level of the anti-theft lock is to use the key to identify, you can easily understand the level of the anti-theft door lock when you look at the key!
The more complex the key, the higher the level of the security door lock and the safer it is. Judging the level of the lock cylinder can be distinguished by looking at the key. When we usually buy a lock, we must not look at the design of the key handle. The most important thing is the design of the key itself!
Class A lock
At present, the A-level anti-theft lock key on the market mainly has a word key and a cross key. The internal structure of the A-class lock cylinder is very simple, limited to the change of the marble, and the marble groove is small and shallow. The anti-technical opening time is extremely high within 1 minute. The marble structure is a single row of marbles or a cross lock.
Super B lock
The Super B-class lock key is a flat-panel key with a double-row marble slot. The difference with the A-class lock is that the key surface has a row of curved and irregular lines. The main types of lock cylinders are 3 types, computer double-row lock core, double-row crescent lock core, double-sided vane lock core. The anti-technical opening time is 5 minutes, and the mutual opening rate is high. With a strong twist tool, the lock cylinder can be opened in 1 minute.
Generally, most of the lock cores in the community are mostly anti-technical open low-grade A or super B-class anti-theft lock cylinders. According to the national standard, the opening time of the A-class lock core technology is 1 minute, and the opening time of the Super B-class lock core technology is 5 minutes. In just a few minutes, it is impossible to fight against the high-intelligence unlocking tools used by thieves. The common A-class anti-theft lock core is in the anti-lock state, and the thief can use the tin foil matching tool to open it in just a few seconds.
Super C lock
The shape of the key is single-sided blade inner milling groove or outer milling slot key. The lock core type is all stainless steel double-sided column and 48-blade lock core; it can not be opened by the Ministry of Public Security for 600 minutes, and the regional mutual opening rate is zero (3,500 One in ten thousand). The structure of the marble is double-row 48-blade plus double-type side column locking; if the lock cylinder is opened with a strong twisting tool, the inner core of the lock cylinder is broken and idling is locked, resulting in failure to open. Because it is not easy to open, the anti-theft coefficient is the highest, and the home anti-theft recommended to use the super-C lock.