Choose your security door carefully

An anti-theft door has been installed, but the home has been stolen many times. What kind of anti-theft door can really play the role of security and defense? Let us listen to the introduction of experts.

Price determines quality

As the saying goes, one cent for one price and one for merchandise, of course, it does not rule out the possibility of merchants making money, but as long as the quality is hard, this sentence definitely makes sense. At present, there are anti-theft doors selling two or three hundred dollars on the market. Experts have calculated an account. The price of a qualified anti-theft lock should be more than one hundred yuan. At present, the manufacturers of anti-theft doors are mostly concentrated in Zhejiang, from Zhejiang to Shaanxi. The freight cost is about 40 yuan, plus an installation fee of 20 yuan, and the city's transportation cost is about 20 yuan. The additional cost of the door itself is nearly 200 yuan, so the quality of such a door can be imagined. Industry expert Yang Yucai introduced that the normal price of a qualified anti-theft door should not be lower than the 800 yuan bottom line.

Anti-theft door also has "ID card"

A qualified anti-theft door shall have three "identity cards". First, the local public security department's record, and must pay attention to whether it is within the validity period. Second, product test report. At present, there are seven inspection agencies authorized by the General Administration of Quality Supervision, Inspection and Quarantine and the Ministry of Public Security in Sichuan, Beijing, Shaanxi, Guangzhou, Wuhan, Shanghai, and Shenyang, and the validity period is only two years. Thirdly, the separate test report of the lock should be a special anti-theft lock, and the validity period is also two years.

View quality from the outside

In addition, consumers can also judge the quality of the anti-theft door through their own inspection when purchasing. First of all, due to the heavy weight of the steel plate, skeleton, etc., the weight of the anti-theft door should be more than 60 kg. Secondly, the sound should be very dull when closed, and because the steel plate itself is thick and not easy to deform, the gap after installation is more uniform, and no small deformation will occur. Again, you can knock on the surface of the door with your hand, making a dull sound, indicating that the filler is not a steel skeleton, the normal steel skeleton sound should be crisp. Finally, although the country does not clearly stipulate that no handrails are added outside the anti-theft door, experiments have shown that adding more handrails will have one more stress point, which reduces the difficulty of abnormal opening, so the appearance of the anti-theft door is better not to add armrests.

The more complicated the key, the better

The complexity of the key directly affects the structure of the anti-theft lock. The cross-shaped key is much more complicated than the internal structure of the flat key lock. The cross lock has bullets in all four directions, and the flat lock only needs to have bullets on both sides, so the same Under the conditions, it is best to choose a cross lock. In addition, the longer the key, the more complicated the concave and convex points on the key surface, indicating that the internal structure of the lock is more complicated, and the higher the difficulty factor of abnormal opening.

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