Do you think the security door in your home is safe? Do you know how long it takes criminals to open your home? The fastest 5 seconds! Is this speed shocking you? Do not be afraid, as long as you choose the anti-theft door, your home is not so easy to be opened, today and Xiaobian together to learn how to choose a safe security door.
First, when the decoration, when the security door? Anti-theft door is not changed after the renovation is completed, it is necessary to order in advance, because the anti-theft door is installed, the need for bricklayers and oil workers for follow-up treatment. Therefore, the security door installation time is generally installed before the bricklayer is withdrawn. The order period of the security door is generally about 7 days, the owner does not have to worry about early, because now the security door is basically the AB key, after the completion of the renovation with the owner of a key, the keys used before the renovation are invalid. In addition, after the anti-theft door is installed, workers will also be worried about bumping. Generally, they will be protected by a protective film, and the owner may not have to worry about it. So, how to buy a security door? First of all, be familiar with the types of security doors.
Second, what are the types of appearance of security doors? At present, there are many types of security doors on the market. According to the standard issued by the Ministry of Public Security, GB25-92 "General Technical Conditions for Security Doors", security doors can be divided into three types: barrier-type security doors, physical doors, and composite doors. 1. Fence-type security door The upper part of the security door is a fence-type steel pipe or steel plate, and the lower part is a cold-rolled steel plate. It adopts multi-lock locking and is not as good as a closed security door in anti-theft effect. 2. The physical door is made of cold-rolled steel plate, and the door panels are all steel plates. The thickness of the steel plate is 1.2 mm and 1.5 mm, and the impact resistance is strong. The double-layer steel door leaf is filled with rock wool insulation and fireproof materials, and has the functions of anti-theft, fire prevention, heat insulation, sound insulation and the like. General entity security doors are equipped with cat's eyes, doorbells and other facilities. 3. The composite security door is composed of a physical door and a fence type anti-theft door. It has the features of anti-theft and summer mosquitoes, ventilation and cooling, and winter insulation. The form of the above three types of doors is mainly based on flat open anti-theft security doors. Swing doors are the most demanded security doors on the market today. Swing door is divided formally: ordinary swing door, door middle door, sub-mother door and composite door. After determining the appearance of the security door, you should determine what kind of security level your security door belongs to.
Third, how to identify the security level of security doors? 1. How to divide the security level of the security door? The national standard divides the anti-theft security level of the anti-theft door into four levels of “Aâ€, “Bâ€, “Câ€, and “Dâ€, respectively using the initial letters “Jâ€, “Yâ€, “Bâ€, and “D†of Pinyin. Marked on the door as a sign, A is the highest level, decreasing accordingly. The national standard requires that the security door should have a permanent fixed mark. The security door marking consists of 3 parts. The marking symbol is pinyin letters. From left to right, they are the anti-theft security code (FAM), anti-theft security level and corporate custom features (including the enterprise code and product code). Among them, the anti-theft security level mark is permanently fixed at the upper corner of the inner hinge, and the height from the ground is 1600 mm±100 mm. 2. Security performance of different levels of security doors Different security levels of anti-theft doors have different security features. Damage prevention time: Class A security door shall not be less than 30 minutes, Class B shall not be less than 15 minutes, Class C shall not be less than 10 minutes, Class D shall not be less than 6 minutes, The number of lock points between door frames and doors, A, B, C, D-class anti-theft doors should be no less than 12, 10, 8 and 6; steel plate thickness of the door frame A, B, C, D should be selected 2mm, 2mm, 1.8mm and 1.5 respectively Mm and so on. The lock of the security door should be able to open the door leaf even if the lock is broken during the tamper-proof time, even if the lock cylinder is broken, the lock body connection piece is disassembled, or the tool is inserted through the upper and lower clearances to release the lock tongue; The effective length of the main lock tongue should not be less than 16mm, and there should be a lock tongue stop device. When the door is finished, it's time to talk about the lock cylinder and the lock cylinder is also on the level.
Fourth, how to identify the security level of anti-theft door lock core? The quality of anti-theft door locks directly affects the anti-theft door anti-theft function. The anti-theft door lock cylinders are generally divided into A-level, B-level, and B-level (some call it C-level). Which level, the key to the A-class lock cylinder has only one row of slots on each side, and there are two rows of slots on both sides of the B-level. The slots of the super-B-level (C-grade) are completely different from the A-level and the B-level. Class B (Grade C) lock cylinders do not use marbles, but rather blades. Their key slots are usually one or more serpentine slots. Grade A is the most primitive and unsafe lock core. The owner’s key is flat. There is only one single row of bullet slots. Some cross keys also belong to Class A. Such a lock can be opened in about two or three minutes. Faster. Class B is a safer class. From the point of view of the key, it is a double-sided double-row bullet bay. If there is a tool for such a lock, the skilled worker must open it for about 10 minutes. Super B-level lock (C-class) is currently the most secure grade, from the perspective of the general double-sided double-row bullet slots, there is a blade or curve next to it, this lock cylinder design technical standards to open more than 280 minutes, generally skilled The master locker also spends hours. 
Read the above article, need to replace the security door when the owner of the renovation, you can rest assured to buy, and you are already considered half an expert.
Security door purchase
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