    Anti-theft door lock is not anti-theft
Recently, CCTV News Channel "Weekly Quality Report" has made detailed analysis and investigation on various potential dangers in the current anti-theft lock market, and exposed the problem that the anti-theft lock is weak and has potential safety hazards.
The program reported a criminal case in which the residents of Longquanyi, Chengdu, found their doors and windows intact but were stolen. The police investigation found that the suspect was using a professional unlocking technology - tin foil unlocking, and smoothly opened the door lock of the head of the household. And this unlocking tool can be easily purchased online, with video tutorials.
It is reported that tin foil unlocking, as a technical means of unlocking, is currently only allowed by professional unlocking companies, and professional unlocking companies and locksmiths must be filed in public security organs, and such unlocking tools in the hands of locksmiths can only be used by themselves. borrow.
    How much do you know about locks?
According to the program introduction, the level of locks is divided into two levels, A and B. However, consumers pay little attention to the anti-theft door locks in their homes, and they don’t know anything about the types of anti-theft locks. Most of them still use the first-level anti-theft door locks given by the developers when they pick up the houses, which leaves hidden dangers for theft. .
Then, what is the A-level lock, what is the B-level lock? According to the national standard issued in 1994, the mechanical anti-theft door lock is divided into the general protection level and the high protection level, which are represented by the A level and the B level respectively.
Class A lock: Currently, the market is mainly a word key and a cross key. The internal structure of the lock cylinder is 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.
Class B lock: Class B lock key is a flat key, with double row of marble slots. The difference with A 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 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.
At present, there is a higher level of Super B-class lock core in China. The Super B-class lock core uses advanced "snake-shaped groove" technology, such as foreign mul-tlock, domestic "Karma" and so on. The so-called super B-class lock, that is, the key shape is the single-sided blade inner milling groove or the outer milling slot key, the lock core type is the side column lock core; the technical inspection can not be started by the Ministry of Public Security for 270 minutes, and the regional mutual opening rate is zero (one thousand One in six million). 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.
    Industry anti-theft standard lag
Although the use of Class A latching on the security door is a serious safety hazard, such products still comply with the relevant provisions of the national standards. Because of the new national standard for security doors issued in 2007, the standard requirements for anti-theft door locks, the industry standard of GA/T73-94 "mechanical anti-theft lock" promulgated by the Ministry of Public Security in 1994 was completely adopted. In other words, in the past 20 years, China's standard requirements and classification of anti-theft door locks have never been updated.
Due to the relative lag of the anti-theft door standards formulated in the early days of the country, the security door market is confusing. Some security door manufacturers pursue low-cost, high-profit, do not invest in the development of higher protection level locks, and use the means of deceiving consumers to ensure production profits. At the same time, the unlocking technology of the anti-theft door lock is also rapidly updated.
Therefore, experts believe that relevant national departments should revise the relevant national standards for mechanical anti-theft locks as soon as possible, and improve the safety performance of locks sold in the market. The upgrade of the lock is not a big problem in terms of technology. The key to the problem lies in the production cost of the manufacturer.
Inventory: Precautions for purchasing anti-theft door locks
According to reports, most consumers currently buy the security door, only look at the thickness and style of the door panel, often overlooking the core component of the security door - anti-theft lock. In order to reduce the cost, some security door manufacturers generally use A-class locks and B-class locks on the door. This lock has a low safety level, high lock-to-core ratio, and poor anti-theft performance. The thief uses the tin foil unlocking tool, and soon Can burglary.
Then, how to choose the appropriate anti-theft lock to protect the safety of you and your family's life and property? In fact, the key to the anti-theft lock is the panel and the lock cylinder. Only the combination of the two can truly create a solid and stable anti-theft front line to protect a safety. Home environment.
First, choose the anti-pull panel. Inferior panels bring no small security risks. The thief can use the special pliers to remove the mortise lock panel on the security door within 30 seconds, and then break the lock cylinder.
Second, buy an anti-theft lock cylinder. So how to pick the lock core, experts for your tricks:
The first trick: look at the "teeth" of the key when buying. 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.
The second measure: pick the lock on the pound, said two, one to see the lock core. 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.
The third measure: choose the lock core to see the color, compare the color, look at the 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, and 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.
The fourth measure: the key rotation is inserted into the lock cylinder. The anti-theft performance of the card is poor. After the key is half-inserted, use 5 to 7 minutes to rotate clockwise or counterclockwise and continue to press the key into the lock. The key of the card indicates the lock core. Poor performance, the smooth insertion of the lock cylinder in the semi-rotation state shows that the anti-theft effect is good.
Experts suggest that consumers should pay more attention to the anti-theft door locks in the home. For the anti-theft door locks, multiple rows of invisible pin locks can be selected. Consumers can make basic judgments on the level of the marbles by the appearance of the keys. Multi-row marble locks are superior to single-row marble locks, and multiple-row stealth marble locks are superior to multi-row marble locks. At the same time, the lock has a service life, and the lock cylinder will wear out after 3-5 years of use. It is best to replace the lock in time for the new citizen. Replacing the B-class lock or super-B-class blade lock core with better anti-theft performance, home safety can be guaranteed.
Fuonce Lighting , https://www.fuonce.com