It is well known that expired food can cause harm to the body. But, you know what? The lock core in the home will also expire. Once the shelf life is over, as with food, there is an unpredictable danger. Check your lockers out of date.

Every five or six years the door locks are "changed"

Recently, the reporter is visiting a few stores that open a lock, the master that unlock says: "the lock that general consumer buys is used long, lock core can wear out, be opened easily by the key of similar tooth form." However, it is often difficult to find out that in life, as long as the lock is not damaged, it is not necessary to change. Not really. It is understood that the shelf life of ordinary door locks is only five or six years.

Nowadays, we live in a community where many security doors and locks are purchased and installed by real estate developers. Most of these locks are a-class locks with low safety factor and shorter shelf life.

"I once went to the wrong unit and opened the door of someone's house with my key. What happened?" Liu, who lives in a community in the xisanhuan district of zhengzhou, said that using the same type of lock in the same neighborhood would, in theory, have a high probability of opening several locks with one key. In addition, if the lock core is not replaced for a long time, it is easy to appear safety hazards. Timely replacement of the lock core can improve the safety factor of the living environment.

Some problems should be paid attention to before the Spring Festival

Whether it's visiting relatives, friends, or traveling, buy yourself a sense of security. How do we protect our homes? Then change the super B lock core quickly. In addition, the reporter also summed up some common sense against theft, I hope it is useful for you.

Above all, want to choose reliable security door: manufacturer should have the production license that relevant department issues, product specification and model pass the test (have test report), sales unit has relevant department to issue security door sales permit. Be careful not to buy "three free products" cheaply.

Secondly, when installing, we should adhere to the "tailoring", pay attention to the close coordination between the door and the hole, and the screws should be welded to death. It is strictly prohibited to install the external hanging flat beat.

Again, after the key is lost, should ask original outfit manufacturer to change lock in time, prevent by bad person to use.

After, the door lock once appears fault should be repaired in time, cannot make do with use, to the bad person can take advantage of the opportunity.