Is the anti-theft door that looks indestructible in our home really anti-theft? If I tell you that you only need a small piece of tin foil, you can open it instantly. Do you believe it? But that's the truth.
Whether the security door is really anti-theft, the scene reveals "tweezing paper lock"
Recently, the Internet has been circulating "tin foil unlocking" to make the doors and windows intact, and the property in the family has been stolen. Is this heated way of unlocking really so God? We invited a professional teacher to do an experiment on site and demonstrate the unlocking process on site. Let us reveal how a small tin foil opens our security door.
Experimental tool
Vise, electric gun, A-class lock core, B-class lock core, super B-class lock core, C-class lock core, key mold, tin foil, pliers, lubricating oil.
experiment procedure
1.A-level lock experiment: Fix a brand-new A-class single-row marble lock cylinder on the vise, spray a little lubricant on the lock cylinder, put the tin foil into the key mold, insert the lock cylinder, and then use the pliers. Tap the key to make it completely into the keyhole, use the electric gun to turn the key, just listen to the "click" for two seconds, and the A-level lock is easily opened. Gently pull out the tool and tin foil, the lock cylinder is intact and can still be used normally.
2. Class B lock experiment process: Fix a new B-class double-row marble lock cylinder on the vise, repeat the above experimental steps, and the electric gun also takes 1 second to open the B-class lock. After the mold is pulled out, it can be clearly seen that a clear tooth mark has appeared on the tin foil.
3. Ultra-B-level lock experimental process: As above, the double-sided blade side column lock is opened with a key mold, and the electric gun rotates at a high speed, but the lock core is never opened.
4. C-level lock experimental process: Try to open the C-class idling non-spring blade lock cylinder, the same experimental method, but the lock cylinder inserted into the mold has been idling, the lock cylinder can not be opened.
Experimental results
The A-class and B-class lock cylinders with lower safety factor can be opened in only one second, while the super-B and C-class lock cylinders with higher safety factor cannot be unlocked by technology.
Hidden danger
1. Anti-theft door lock standard has not changed for 20 years
2. The insecure use of the A-level lock for the security door has reached the point of being ineffective, which completely deviates from the value of the lock. Even with such safety hazards, Class A locks are still in compliance with national standards, and related products are mass produced and sold in the market.
3. In 2007, China issued a new national standard for security doors. The requirements for anti-theft door locks in the standard were the industry standards for the “mechanical anti-theft locks†promulgated by the Ministry of Public Security in 1994.
It is stipulated that the A-level anti-theft lock prevents the technical unlocking time from being less than 1 minute, preventing the destructive opening time from being less than 15 minutes; the B-level anti-theft lock preventing the technical unlocking time not less than 5 minutes, preventing the impact opening time from not less than 30 minute. That is to say, in the past 20 years, China's standards for mechanical locks, including anti-theft door lock requirements and classification, have never been updated, but the unlocking technology of anti-theft door locks is constantly being updated. Therefore, all of us now call the Super B lock and the C lock, which are all called in the industry. There is no national standard. Super B and C locks are mainly distinguished by whether the lock cylinder is idling and the number of blades.
4. The national lock standard has lagged behind, because it is not suitable for the current market demand in terms of resistance to technical opening and damage resistance. Nowadays, in order to reduce the cost of the new housing, the developers are equipped with some cheap locks costing about tens of yuan when they are locked, and 80% or more are still using A-class locks or B-class locks.
Xiaobian reminder:
For the safety of the family, Xiaobian suggested that consumers with conditions should upgrade the Class A anti-theft lock to Class B anti-theft lock as soon as possible to maximize the safety of their own anti-theft door locks and reduce the possibility of being stolen. To have a good lock habit, you should lock the anti-theft door lock core, insert the safety pin, etc., which can increase the high safety factor. When sleeping at night, the security door should be locked from the inside to the outside, which can effectively prevent the thief from using the master key to unlock. In addition to timely replacement of the lock to ensure the safety of the door lock, we must also pay attention to the "privacy" of the protection key. In public, try not to expose the key. "The layman only sees the key, but after knowing the technical sinisters, It is a set of passwords.
Editor in charge: Sun Gongxue
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