Mechanical locks are commonly used locks, but mechanical locks also have several levels of safety. You should also pay attention to the level of locks when you purchase them. Here is a detailed introduction to the types of marble locks and how to purchase them. Let's take a look.
First, a comprehensive understanding of the marble lock
1, the components of the marble lock
The pin lock is generally composed of a lock cylinder, a marble, a spring, a lock tongue, a key, and the like. The lock core is divided into the inner lock core and the outer lock core, and the inner lock core is the place where you insert the key; the copper marble is divided into inner and outer marbles, cylindrical, and the length is different; the spring is mounted in the round hole of the outer lock core. The marble; the locking tongue is the part that expands and contracts when the lock is unlocked; the key has different heights of the "tooth flower" corresponding to the marble of different lengths.
2, the disadvantage of the marble lock
The pin lock is a relatively common type of lock on the market. However, with the extensive use of the ball lock, the drawbacks of the ball lock are becoming more and more obvious, mainly in the following aspects.
One of the most common A-class locks can even be opened in a matter of seconds, faster than using a key. In movie and TV dramas, we can often see that some masters use a wire, etc., to make a few locks into the key, and the lock can be opened.
3, the security level of the marble lock
In order to improve the safety of the marble lock, it is more difficult to open, and the more complicated structure of the marble lock is constantly appearing. At present, the marble lock has various structures such as one-way, two-way, three-way and four-way marbles, as well as plane, double-sided, Multi-faceted, double-row double-sided, multi-row multi-faceted marble structure and combined marble structure. Generally speaking, the more complicated it is, the harder it is to be turned on. At present, different security levels are set for different locks, which are A, B, and Super B grades, and the corresponding security is higher.
Class A lock
The A-class anti-theft lock marble structure is a single-row marble or cross lock, and the key has a 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.
Class B lock
The B-class lock key is a flat-panel key with a double-row marble slot. The difference with the A-class lock is that there is a row of curved and irregular lines on the key surface. 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 B-level lock-proof 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.
Super B lock
The key shape is a single-sided blade inner milling slot or an outer milling slot key, and the lock cylinder type is a side cylinder lock cylinder. After the Ministry of Public Security detected 270 minutes, the technology could not be opened, and the regional mutual opening rate was zero. The structure of the marble is locked by the double row of blades and the V-shaped side column. If the lock cylinder is opened by a strong twisting tool, the internal core of the lock cylinder is broken, and the self-explosion is locked, resulting in failure to open.
Second, the marble lock purchase steps
1, look at the key tooth flower
The more teeth, the deeper the teeth, the more complicated the arrangement, the more difficult it is to open, and the better the anti-theft performance;
2, specific weight
The heavier the weight, the better the quality of the lock cylinder. The more beads in the lock cylinder, the better the anti-theft function;
3, see the color and color work
The quality of the lock cylinder is electroplated, the surface is smooth and the color is bright. Among them, the color is dark yellow, the copper core is relatively strong, the anti-theft performance is better, the color of the lock core is dim, the color is gray and the bubble is zinc alloy, and the anti-theft performance is general.
4, try to insert the key
The key rotation is inserted into the lock cylinder and the card has poor anti-theft performance.
Editor in charge: Xu Yuehua
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