China Consumers Association urges residents to replace old cross locks to reduce theft risks

China Consumers Association recently issued a consumer warning that the anti-theft door A-level lock can be opened in tens of seconds or even seconds, appealing to consumers to replace the safer B-level lock core in time.

Sample survey

Over 50% of residents use Class A locks

The China Consumers Association has conducted a random sample survey and found that more than 50% of users are still using A-level locks, and most of the old communities use this type of lock core. The China Consumers Association pointed out that with the development of unlocking technology, the security of this type of lock has decreased. Although some anti-theft locks are equipped with multiple layers of rotation turns to improve the safety of the lock, there are more rotation turns. It can still be successfully cracked in tens of seconds. Recently, thieves have used a new technology commonly known as the "tin foil unlocking method" to open the anti-theft lock. The shortest time for all unlocking processes can be completed in just a few seconds.

The reporter consulted the police at the grass-roots police station yesterday. The police also said that cases of tin foil unlocking did happen from time to time, and A-level locks were indeed easier to open.

It is reported that tin foil unlocking is a new type of unlocking method, which mainly takes straight locks and cross locks as the main objects. Tin foil unlocking requires the use of special tin foil tools. Because the toughness of tin foil in the lock body can be deformed with the teeth of the pin lock teeth, and can be locked on the teeth, it can quickly open the door lock.

Unlock test

B-level lock opening time exceeds national standard

The China Consumers Association said that compared with A-level locks, B-level anti-theft locks are safer. In actual tests, the time for B-level anti-theft locks to be broken and opened is much higher than the national standard, and it is also higher than the criminal psychology of thieves. Can more effectively protect consumer property and personal safety. The Consumers Association pointed out that every year is a high incidence of theft cases, especially during the long holiday of the Spring Festival. Many consumers have no one at home for a long time, and the risk of burglary is greater. Conditional consumers should upgrade A-level anti-theft locks to B-level anti-theft locks as soon as possible to maximize the security of their own anti-theft door locks and reduce the possibility of their theft.

A 2014 consumer knowledge survey report released by a website called Chengsou.com corroborates the CCP's claims. According to the investigation report, Class A lock cylinders generally include traditional straight locks, cross locks, crescent locks, and locks with only a row of marbles in most lock cylinders. Their anti-theft properties are poor, and the opening time is generally a few seconds to In about two minutes, many developers pay for A-level locks. The investigation report pointed out that A-level locks are the key targets of thieves, which can be opened using iron hooks and iron sheets.

Specification Interpretation

There is no "super B" lock in the national standard

It is understood that according to the provisions of the Ministry of Public Security GAT73-94 "Mechanical Anti-theft Lock", anti-theft locks are divided into ordinary protection levels and advanced protection levels according to their anti-theft capabilities. Locks of ordinary protection levels are indicated by the letter "A". The letter "B" indicates. Class A anti-theft lock prevents technical unlocking time of not less than 1 minute and destructive opening time of not less than 15 minutes; Class B anti-theft lock prevents technical unlocking time of not less than 5 minutes and impact opening time of not less than 30 minutes.

According to the reporter's understanding, there are still concepts of super-B-level locks and C-level locks in the market. In this regard, the China Consumers Association said that in fact, the national standard only stipulates A-level locks and B-level locks, and there is no such thing as super-B-level locks and C-level locks. At present, the so-called super B-level locks and C-level locks on the market should be self-defined concepts, but super B-level locks and C-level locks must meet the basic requirements of national B-level locks, that is, super B-level locks and C-level locks can be used. Level locks are regarded as level B locks.

Replacement tips

No need to change the whole door for the lock core upgrade

To improve the safety level of the lock, only the lock core needs to be replaced. Consumers can remove the lock core by themselves, and purchase higher-level lock cores according to the specifications of the removed lock core. Normal formal anti-theft doors can be replaced with lock cylinders, without replacing the entire door and the entire lock.

Confirm the lock cylinder specifications before replacement

Consumers should pay attention to the model specifications of anti-theft locks, and replace them one by one. The appearance and installation dimensions of general B-class lock cylinders and ordinary lock cylinders are unified. There are also special anti-theft door locks, the specifications are not uniform, consumers should confirm the lock core specifications before buying.

The market price is mostly two or three hundred yuan

The price of Class B anti-theft lock core is currently 200 to 300 yuan in hypermarkets, consumers are advised to buy regular brands. The same is the B-level lock, but also choose good quality products. At present, there are many kinds of key materials. Copper or aluminum-iron alloys are easy to be copied. Currently, the better material is steel.