Anti-theft lock is one of the indispensable and important safety facilities in modern families, enterprises and institutions. It can not only effectively prevent theft, but also protect people's lives and property. Therefore, it is particularly important to carry out strict quality inspection and safety performance evaluation of anti-theft locks.

First, the detection standard of anti-theft lock

At present, the main standards implemented in China's anti-theft lock industry are GB/T175652007 general technical conditions for anti-theft safety doors, GA3742001 electronic anti-theft locks, etc. Among them, the mechanical anti-theft lock is divided into class A (≥15 minutes) and class B (≥30 minutes) according to the length of time it resists abnormal opening; For electronic anti-theft locks, according to the different encryption methods of information storage, they are divided into C-level (using dual-chip dynamic password algorithm), D-level (using single-chip static password algorithm) and E-level (without any electronic function).

Second, the inspection method and content of anti-theft lock

1. Appearance inspection: mainly observe whether the surface of the lock is smooth, without scratches, bubbles and other problems;

2. Structural dimension measurement: use special tools to measure whether the length, width and height of the lock body and the length of the lock tongue meet the design requirements;

3. Functional test: the reliability and stability are verified by manual operation or automatic device to simulate the opening and closing process;

4. Determination of damage resistance: including prying method (applying external force with a wrench, hammer and other hard objects) and drilling method (drilling holes at specific positions with an electric drill) to test whether the anti-theft lock can withstand a certain degree of violent attack without being opened or damaged;

5. Analysis on the difficulty of password cracking: For those withFor intelligent products with functions such as digital keyboard/fingerprint identification, additional attack and defense drills are needed for these special components to ensure that they cannot be easily unlocked even if they encounter professional hackers.

III. Conclusions and suggestions

After a comprehensive and careful consideration of the above indicators, we find that the higher the price, the safer the anti-theft lock. When choosing, we should also consider the cost-effectiveness factor in combination with the actual application scenarios and personal needs. In addition, we should also pay attention to distinguish the authenticity during the purchase process to avoid being deceived. It is best to go to formal channels to buy products of well-known brands and obtain relevant certification materials such as invoice warranty cards in order to safeguard rights and interests in the future. Finally, remind everyone to develop good habits when using it at ordinary times, such as frequent cleaning and maintenance to avoid rusting and jamming, and at the same time, change the password regularly to prevent leakage from causing security holes!

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