The lock core also has a shelf life. Have you changed your lock core?

We all know expired food can harm your health. But did you know that even lock cores in your home can expire? Once past their expiration date, they become as dangerous as spoiled food – posing unpredictable risks. Check if yours has expired!

The door lock needs to be "replaced" every five or six years

During recent visits to locksmith shops, technicians revealed: "Long-term use wears down lock cores in standard locks, making them vulnerable to keys with matching serrations." Yet many residents overlook this issue, assuming replacement isn't necessary unless the lock shows visible damage. The truth is, standard door locks typically have a service life of just five to six years.

Nowadays, many of the anti-theft doors and locks in our residential communities are purchased and installed by real estate developers. Most of these locks are grade A locks, which have low security factor and shorter shelf life.

"I once entered the wrong unit by mistake and used my house key to open someone else's door. How did this happen?" said Ms.Liu, a resident of a community on Zhengzhou's West Third Ring Road. She explained that using identical locks in the same neighborhood theoretically increases the likelihood of "one key unlocking multiple locks." Moreover, failing to replace lock cores over time creates safety risks. Timely replacement of lock cores is essential to enhance residential security.

The Chinese New Year is coming, and there are some things to pay attention to

With Lunar New Year approaching, whether visiting relatives, attending friend gatherings, or traveling, it's time to boost your sense of security. How can we protect our homes? The answer lies in upgrading to a top-tier B-grade lock system. Our journalists have also compiled essential anti-theft tips that will prove useful for you.

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

Secondly, in the installation, we should adhere to "tailoring", pay attention to the close cooperation between doors and openings, and weld screws firmly. It is strictly prohibited to install them horizontally and externally.

Thirdly, after the key is lost, we should ask the original manufacturer to replace the lock in time to prevent it from being used by bad people.

After that, once the door lock is faulty, it should be repaired in time, and should not be used to make up for it, so as to give bad people an opportunity.