What is the connection between heaven and earth?

The door lock hook is actually the lock tongue on the top, bottom and side of the door. This kind of door lock hook can play an anti-theft and anti-theft role.

From the visual point of view, the heaven and earth hook can further prevent theft, but in fact it is not very effective and intelligent, so many home improvement users do not choose the lock of the heaven and earth hook. Generally speaking, the anti-theft system of the entrance door is very perfect, and the technology is becoming more and more intelligent, and many of them do not need the hook of heaven and earth.

disadvantaged

In fact, the original intention of the heaven and earth hook design is to "prevent picking". In order to prevent criminals from prying the door, the manufacturers of security doors have increased the design of locking tongue on the upper and lower edges, which is also known as the hook of heaven and earth. In today's transparent information, many unlocking technologies can be found online, and the anti-theft of the hook between heaven and earth has failed, which basically cannot prevent the theft of criminals.

Not only in terms of security, but also the link between heaven and earth has become a security risk. Due to the increasing number of high-rise buildings, the appearance of fire ash will lead to the deformation of the door with hooks at high temperature, delay rescue and lead to life-threatening. Therefore, at the same time, the installation of hooks between heaven and earth has also been banned.