[Anti-theft performance of lock core] What kind of lock core has good anti-theft performance? Precautions for purchasing anti-theft lock core.
Which lock core has good anti-theft performance?
1. Lock core of Class A security door
The key is flat or crescent, with a row of concave keyways on one or both sides or convex keyways on four sides of the cross; The time to prevent technical unlocking is not less than 1 minute, and the time to prevent destructive unlocking is not less than 15 minutes.
Class A lock core is an old-fashioned lock core. The key is a cruciform or crescent-shaped key with a convex keyway and a row of concave keyways on one or both sides. Thieves can open this kind of key in a few seconds with tin foil. If you still use this kind of key at home, change it quickly. A-class lock core has been unable to prevent thieves.
2. Lock core of Class B security door
The key is flat or crescent-shaped, and the B-class lock key is more complicated than the A-class key, with two rows of concave keyways or cylindrical multi-point concave keyhole on one or both sides; Anti-technical unlocking time is not less than 5 minutes, and anti-impact unlocking time is not less than 30 minutes.
3, super B-class security door lock core
The key is flat, with two rows of concave and S-shaped keyways on one or both sides, or double snake-shaped keyways inside and outside. It is the most complicated lock core and the safest lock core, and the tool can’t even be opened after more than 270 minutes. If the lock core is opened with a strong twist tool, the inside of the lock core will be destroyed and locked by self-explosion, resulting in failure to open it.
Through the above comparison, consumers must have a clear understanding of which lock core has good anti-theft performance, and consumers can choose according to their actual needs.
Matters needing attention in purchasing lock core of anti-theft door
1. Anti-theft level
For ordinary people, the index to simply identify the anti-theft performance of the lock cylinder is the anti-theft level. To some extent, the level of the lock core of the security door explains the structural design, key, material, mutual opening rate, function, anti-violence opening, anti-technical opening and other performances of the lock core of the security door.
2. Internal structure
The rationality of the core design mechanism is very important for its anti-theft performance. Because each structure has its advantages and disadvantages: the anti-twisting ability of the pin lock is better, but the anti-pulling ability is worse; The blade lock has a higher anti-shifting ability, but a poor anti-twisting and anti-vibration ability. The anti-theft performance of single structure lock core is worse than that of mixed structure; However, two or three kinds of locks with mixed structures have much higher comprehensive anti-theft ability. When consumers choose the lock core, they can consider choosing a hybrid structure.
3. Materials and materials
The quality of the lock core is closely related to the quality of the material. A good lock must be made of good material. The material used for anti-theft lock core needs certain hardness and toughness, and it should be wear-resistant and break-resistant. Advanced anti-theft lock cores are generally made of steel, nickel (16%) and manganese (2%) alloys. Generally speaking, the lock core made of common materials such as copper, iron, aluminum and zinc alloy is not a good lock core.
4. Innovative technology
Anti-theft lock core belongs to the field of precision products and technology. Therefore, when identifying the performance reliability of anti-theft lock core, another index is to see what innovative and precise anti-theft technology this lock core has in technology, but it is difficult for ordinary consumers to have a channel to understand it.
5, workmanship
For the lock core of security door, higher precision often means more reliable quality; The larger the contact surface between the lock nail and the lock nail, the smaller the punching gap, and the smaller the gap between the lock plug and the lock shell, the more reliable the lock core will be.
The simple way to check is to insert the key slowly, shake it up, down, left and right, and then pull it out slowly. If you insert or pull it out with a little elastic obstruction, the sense of shaking up and down and left and right is not too great, and the accuracy of the lock core is high, it is a good lock core, but it must not be a good lock core.
6. Key structure
Looking at the structure of the key when buying a lock, the more teeth, the deeper the teeth, the more complicated the arrangement, the more difficult it is to copy, the lower the mutual opening rate, the more difficult it is to open, and the better the anti-theft performance.
The more precise the key, the clearer the hole position and groove position, the smoother the lock core, and the clearer the depth and the more obvious the concave and convex, the better the quality will be. On the contrary, the lock core with rough key, unclear slot position, obscure hole position and different primary color of hole position from the key color on the key surface must be of poor quality.
Laiwu Wanbao unlocking solemnly reminds
For the safety of your family’s property, in order to improve the anti-theft level of the security door. Please upgrade the lock core of the security door to the lock core above Class B and Class C! !
Class A lock core can be opened in 3 seconds! ! ! !
Jixin lock core is guaranteed to be replaced for life. Jixin lock core meets the European safety standards and is certified by the Ministry of Public Security for C-level safety. It was stolen and paid 500,000 yuan.
Laiwu wanbao unlocking Ji Xin suo suo zhi Wen suo Laiwu general agency
Laiwu Lock Cylinder Replacement Tel: 0634-6666266
Laiwu Wanbao Unlocking Friendly Tips If you need to unlock:
For your property safety and personal safety, don’t be greedy for cheap unlocking. Please choose a formal and professional unlocking company.
Choose a legal unlocking company with physical storefront, public security record, industrial and commercial registration, unlocking certificate and locksmith qualification certificate.