Is your door secure? The nanjing city market supervisory authority has recently carried out a spot-check on the quality of door-to-door products sold by city-wide production enterprises, physical stores and electric power companies. A total of 30 batches of products were examined, with a 83. 3 per cent pass rate。
This time, 30 batches of products were examined, 2 batches of enterprises, 21 batches of physical stores and 7 batches of electrical platforms. The qualifying 25 batches and 5 batches (of which 4 batches of unqualified products were detected in physical stores) were tested, with an eligibility rate of 83. 3 per cent, and the ineligible items were required for steel plate thickness, destructive energy and locks。
For steel plate thickness, it is not easy to observe from the outside that a few enterprises use thin, soft and small steel plates in pursuit of maximization of benefits, since the shield is inside the doors. The sample found that companies had even used fibreboards as a substitute for enhanced steel protection, which had significantly weakened protection, reduced the ability to prevent theft and made it easier to extract。
The most important indicator of the security door against theft is the ability to prevent damage. The director of the national centre for the examination of the quality of building materials, a tester, xue-tao, found that a number of substandard samples with a high-level security level (class a) had been found to be in order to obtain an undue advantage. According to the criteria, two indicators were used to assess whether a level-i damage-proof capability had been achieved. One of them was to prevent the opening, within a specified period of 30 minutes, of a pass point greater than 615 cm2 using a prescribed tool (the hammer or cone and an electric tool); the second was to prevent the opening of the door by an irregularly opened device within 30 minutes. When an unqualified product opens a 615-cm2 gate, the measured time will only meet the requirements of the level b security door; when opening the door by an irregularly opened means, two of the tests will only meet the requirements of level c security door。
“the number of lock points between door frames and doors, the number of security doors at the level of a, b, c and d should be no less than 12, 10, 8 and 6, the more difficult the damage will be, the longer it will be. A number of small businesses produce burglary doors, equipped with low-cost, poor-quality door locks, most locking steel plates of between 0. 6 and 0. 8 mm, more than double the standard 1. 5 to 2 mm. "
The quality of locks is critical to the security of doors. In this sample, a number of unsatisfactory samples were found without reinforced steel plates in the lock installation, resulting in less disruptive security doors。
According to xue-tao: “the spot-checking revealed that, because the steel shield was inside the doors, it was not easy to observe from the outside that many enterprises, in an attempt to maximize their benefits, had replaced it with fibreboards to enhance the shield, thus significantly reducing the protection. Strengthening the thickness and size of steel plates, regardless of the front door, is the main part of the theft. Therefore, formal anti-piracy doors should be fitted with drill-resistant reinforced steel plates; lock-proofing devices require a lock hole in the centre, with enhanced protective steel plates within a radius of not less than 100 mm.”
The spot-checking revealed that the logos sold by the zhejiang yiuhua gate industries ltd. Were not qualified as “safe gates” produced by zhejiang yiu huamen industries ltd., nanjing city. The logos sold by wen xuan gate industries department, gang ning district, nanjing city, were not qualified as “six heavy safety gates” produced by zhejiang heavy gate industries ltd., and the logo sold by the zhejiang province's twin feather decoration materials operating department, gang ning district, nanjing city, were not qualified as “wyde security gates” produced by wyde industries ltd., yongkang city, zhejiang province。
Safety is of paramount importance
Depending on the economic situation in the home and the requirements for safe doors to prevent theft, as well as the actual needs such as the size of the door to the living room, the direction to be opened, the consumer decides which of the four levels of “a” “b” “c” to prevent theft will be selected before choosing the colour and style. In the selection and acceptance of doors, it is important to check whether there is a permanent security level mark on the side of the chain of doors and whether it is consistent with the level of identification。
2. The damage-proofing function is the most important function of the security door for theft, and many enterprises now have quality-checked department reports for door-proofing products. Consumers can view the inspection report when buying the door for theft on the market, first selecting the qualified product, the quality of the product should conform to the technical requirements of the national standard gb17565-2007 general technical conditions for security gate-proofing, and, when examining the report, be careful whether the specification model is consistent with the selected security door。
3. Check the quality of the process and its appearance: special attention should be paid to checking the presence of welding defects such as welding, unwelding, leaking welding, etc.; whether the co-ordination of the doorknobs with the door frame is complete, whether the gap is uniform, whether the opening is flexible and whether all the interfaces are secure; and whether the surface of the doorboard should be preservative and generally paint and spray. Many security doors now have rubber seals on the door frame, so that when the door is closed, the sound of a sharp metal collide does not occur. The door thickness of the security door is generally over 40 mm, with steel skeletons in the door-plugs and fillings (e. G., bubbles, tampons, beehive cardboard, etc.), which binds the front and back of the door in an organic manner, increasing the overall strength of the door。
4. Locker inspection: qualified anti-piracy doors generally use special security locks that have been tested by the public security authorities, with a drill-proof lock, the lock structure is pry-proof, especially since the lock core cannot be a single bomb structure, and the lock of a single bomb structure can lead to a reduction in the damage and confidentiality of the security door. In addition, security doors for theft should be fitted with reinforced steel plates in the locks, and consumers can check for the presence of protective steel by removing the door locks. Many of the existing locks are multiple locks, which have the advantage of not only locking the door, but also locking the top and bottom poles, and the standard requirement that the locks between the door frames and the door fans should be multiple-locked in three slots, while the number of locks by security levels a, b, c and d should be 12, 10, 8 and 6, respectively, has significantly increased the security of the doors。
5. Brand guarantees: when buying safe doors on the market, it is best to go to a formal, large home building town. The purchase shall also be made with regard to the “fam” sign for the security of doors, the permanent security level mark, the name of the enterprise, the performance standards, etc., so that the standard doors are safe and reliable. The safe door is now subject to the voluntary certification of products, and a number of prominent and large enterprises have made the voluntary certification of products for the safe door, with “ga” certification labels on all the certified products, and consumers may choose products with “ga” certifications of better quality。
6. Contract signed. Consumers are required to sign contracts when purchasing door-proof products or to indicate “door-proof” on invoices in order to prevent illicit operators from posing as door-proof sales such as “steal doors” and “steal doors”。
