How to check the security of your own door lock? In this regard, Zhang Qingshui, manager of a lock-up company, has a small trick. "Put the half of the key into the lock cylinder, screw it in one direction, and then continue to insert it. If it is smooth, it means that your lock core is basically Safe; if the obstacle is not smooth during the insertion process, then you should pay attention to the lock cylinder of your home. This should be a lock cylinder with a relatively easy opening. The safety is relatively low." Zhang Qingshui reminds In the past, locks can be used for a long time, because the unlocking technology is in the hands of a few people and there is no Internet communication. In today's lock cylinders, it is best to update them frequently. The cycle is generally three to five years.
C-level lock: the marketing gimmick of the merchant
Logging in an online shopping mall search found that the lock cores of the security doors currently sold by the merchants mainly have A-class, B-class and Super-B grades, and some merchants sell "C-class" lock cylinders, and all claim to be highly secure. From the sales record, the "C-class" lock cylinder is currently favored by some consumers. However, Zhang Qingshui said: "Home security is recommended to use Super B-class locks. As for some "C-level" locks sold by some merchants, it is actually a marketing gimmick, which can be said to be "non-existent" - because the country does not This standard. It is understood that the difference between A-class, B-class and Super-B anti-theft locks mainly refers to the difficulty of unlocking. The A-level and B-class lock cores have a relatively low anti-theft coefficient, and the anti-technical opening time is only a few minutes, which is basically impossible to counter the high-intelligence unlocking tool used by the thief. The super B-class lock core has a high anti-theft coefficient, and the anti-technical opening time is much longer than the A-class and B-class lock cylinders.
Everyone needs a "three attentions" to buy a lock.
According to Zhang Qingshui, most consumers now have some misunderstandings when purchasing lock cylinders. The first thing that bears the brunt is that the more complicated the key shape, the higher the safety of the door lock. "When you buy a lock, don't be fooled by the shape of the key. In fact, you can imagine that in a small space, if the lock cylinder is made complicated, the inside will be easily damaged and the durability will be worse. So buy You can't just consider the shape of the key.†He introduced that in order to purchase a relatively safe door lock product, first, when buying a lock, try to buy a well-known brand under the premise of funds. Well-known locks are often screened at various levels for credibility. Second, the door lock should be purchased through formal channels. It is recommended to consider the purchase of the regular unlocking agency that is filed in the public security department, because the general sales personnel may have knowledge misunderstandings and affect the purchase of consumers. Third, when buying a lock cylinder, try not to buy a row of serpentine grooves, two rows of marble locks. It is best to buy the lock of the blade side column principle. The blades can solve the problem of mutual opening rate. The side column can solve the problem of technical opening. Such a lock design is more secure.
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