As an emerging product in modern society, smart door locks have won the favor of many home users by virtue of their convenience and safety. After multiple technical updates and iterations, many smart door locks can resist the infringement of small black boxes. When encountering violent unlocking, an alarm is issued to maintain the user's home and property safety. When buying a smart door lock, we will see through the product parameters that the chip of the smart door lock is Class B or Class C, so what do these levels mean?
Near the 618 Shopping Festival, in order to facilitate users to buy smart door locks, today we will talk about these two issues. Interested partners may wish to know.
Home users buy smart door locks mostly to guard the door, as the first security gate at home, the safety of the door is very important. For the door lock, the level of the lock cylinder has a certain impact on its safety factor. Commonly used unlocking methods by consumers include fingerprint unlocking, Bluetooth unlocking and APP unlocking. These three unlocking methods are safer than password unlocking and prevent peeping. For the sake of safety, when you buy smart door locks, it is recommended to start with a brand with technical research and development. The smart door locks of big brands not only use more advanced lock cylinders, but also have relatively guaranteed after-sales installation.
At present, there are various grades of lock cylinders in the market, including grade A, grade B, grade C and even grade D, as well as grade A, grade B and grade B. Their origin dates back to 1994 when the state promulgated the "GA/T73-94" mechanical anti-theft lock standard, which specifies grade A lock and grade B lock, the main distinguishing condition is that the time for A- level locks to prevent technical unlocking needs to be more than 1 minute; B- level locks need to be more than 5 minutes, so for A- level locks or B- level locks, according to national standards, the difference between them is to prevent technical unlocking Time, not the difference in structure or style.
Class A lock: At present, there are mainly one-word keys and cross keys for Class A 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 marble structure is a single row of marble or cross lock.
Class B lock: 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.
The difference between super-B-class and B- class locks lies only in the difference in the opening time of anti-technology, but the division of violent unlocking is almost the same. Therefore, I have also added a certain violent unlocking defense capability to the requirements of super-B-class lock cylinder. The main difference between Class B lock cylinder and Class B lock cylinder and Class C lock cylinder is that the anti-technical unlocking time and mutual opening rate are obviously required. The longer the technical unlocking time, the lower the mutual opening rate, the higher the safety performance of the lock cylinder.
Class C lock: the key shape is the inner milling groove of single-sided blade, the outer milling groove key or the form of double-row blade, and the lock core type is the side column lock core. 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.
It is worth together, the purchase of intelligent door locks, it is recommended that we should combine the use of the environment, conditions and requirements to buy. Because different use environment has different function focus. In addition, the scope of the induction door card also needs to be consulted and understood. Whether it can accurately send signals to control the intelligent door lock depends on the quality of the induction door card. Choose a smart door lock brand with high stability, such as production experience, research and development technology and creation time can be used as a reference basis. After all, practice is the only criterion for testing truth.