What are the lock cores of anti-theft door locks? How to change it if it is broken?

With the development of society and the progress of science and technology, more and more intelligent products enter thousands of households, people pay more and more attention to the quality of life, and their safety awareness is stronger than before. As far as door locks are concerned, they have also developed from traditional locks to intelligent anti-theft door locks, which are used by almost every family, but no matter how good things are, they cannot be guaranteed to be good forever. Here's what the anti-theft door locks are divided into and how to replace them if they are broken.

1. What are the lock cores of the anti-theft door lock?

According to the national standard, the safety level of lock core is divided into three levels: A, B and C. Class C lock core is as follows:

1, Class A lock core, technical opening prevention ≥ 1 min, drilling prevention ≥ 10 min, sawing prevention ≥5 min, prying prevention ≥ 10 min, tension prevention ≥ 10 min and impact prevention ≥/kloc.

2. For class B lock core, the anti-technical opening shall be ≥5 minutes, the anti-drilling shall be ≥ 15 minutes, the anti-sawing shall be ≥5 minutes, the anti-prying shall be ≥ 15 minutes, the anti-pulling shall be ≥ 15 minutes, and the anti-impact shall be ≥ 15 minutes.

3. For class C lock core, the technical opening prevention is ≥ 10 minute, the drilling prevention is ≥30 minutes, the sawing prevention is ≥30 minutes, the prying prevention is ≥30 minutes, the pulling prevention is ≥30 minutes, and the impact prevention is ≥30 minutes.

Second, how to change the anti-theft door lock if it is broken?

1. Select the lock cylinder and unscrew the two screws on the handle panel for fixing the panel.

2. After unscrewing the screws, put them away. Don't tighten the screws too tightly when installing, so as not to tighten the handle of the safety door too tightly to open it. Remove the handle, and then remove the lock cap.

3. Unscrew the screw that fixes the lock cylinder. If the lock core cannot be pulled out by hand after removing the screw, knock the lock head down with a hammer.

4. Before installing the handle, insert the safety bolt, and then install the upper handle.

5. When installing the inner and outer handles, someone will help to hold the outer handles together and then touch them symmetrically.

6, internal and external handle installation should be coordinated, screw holes should be aligned with nuts, or turn the screws after lighting with a flashlight.

7. The screw should be inserted vertically. When inserting the screw, if it is not aligned, you can shake the screw with your fingers to align it.

8. Tighten the screws of the panel so that the panel will not be loose.

9, try the effect, pay attention to open the door and try again, to avoid being locked out, if everything is normal, you can do it manually.

The above are all about what the lock core of the anti-theft door lock is divided into and how to replace it if it is broken. I hope I can help you understand the relevant knowledge of anti-theft door locks. Please continue to pay attention to more decoration knowledge, decoration company evaluation and decoration cases.