The lock cylinder also has a shelf life. Have you changed the lock cylinder in your house?

　As we all know, expired food can do harm to people's health. But, you know what? The lock cylinder at home will expire. Once the shelf life is over, it will cause us unpredictable danger just like food. See if your lock cylinder is out of date?

Every five or six years, the door lock needs to "change its heart"

Recently, when visiting some unlocking shops, the master of unlocking said: "the lock purchased by the general consumer will be worn after a long time, and it is easy to be opened by a key with similar tooth shape." However, it is often difficult to find that in life, as long as the lock is not damaged, it does not need to be replaced. This is not the case. It is understood that the shelf life of ordinary door locks is only five or six years.

Nowadays, in our residential area, many security doors and locks are purchased and installed by real estate developers. Most of these locks are class a locks, with low safety factor and shorter shelf life.

"I once went to the wrong unit, but I opened the door of others' house with my key. What's the matter?" Ms. Liu, who lives in a community in the West Third Ring Road of Zhengzhou City, said that if I used the same type of lock in the same community, theoretically, the probability of "one key opens several locks" would be very high. In addition, if the lock cylinder is not replaced for a long time, it is easy to have potential safety hazards. Timely replacement of the lock cylinder can improve the safety factor of the living environment.

It's new year's day. We need to pay attention to some problems

It's new year's day. Buy yourself a "sense of security" whether it's going to relatives, friends' parties or going out for a trip. How to protect our "home"? Let's change a super-B lock cylinder. In addition, the reporter also summed up some common sense of anti-theft, hope to be useful to you.

First of all, we should choose reliable anti-theft door: the manufacturer should have the production license issued by the relevant departments, the product specifications and models are tested to be qualified (with test reports), and the sales unit has the anti-theft door sales license issued by the relevant departments. Be careful not to buy "three no products" cheaply.

Secondly, during the installation, we should adhere to the principle of "tailor to measure", pay attention to the close cooperation between the door and the hole, the screws should be welded, and it is strictly prohibited to use flat racking and external hanging installation.

Again, after the key is lost, the original manufacturer should be asked to change the lock in time to prevent it from being used by bad people.