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Anonymous users2024-01-24First, it is necessary to understand that the qualified anti-theft door generally adopts a three-way lock, not only the door lock is locked, but the upper and lower crossbars can be inserted and locked to fix the door. Inferior products generally do not have a three-point locking or optional three-point locking structure. Most doors also have rubber seals embedded in the door frame, which makes a screeching metal crash sound when the door is closed.
Special attention should be paid to check whether there are welding defects, to see whether the fit between the door leaf and the door frame is dense, whether the gap is uniform, whether the opening is flexible, whether all joints are dense, whether the paint plating is uniform, firm and smooth, etc.
The second is to check the anti-theft security door inspection report provided by the operator, and the inspection results should meet the new national standard. The new standard will be the anti-theft security level of the anti-theft door from the original C, B, A, to A, B, C, D four levels, the corresponding pinyin letter codes are J, Y, B, D, A is the highest level, decreasing in turn. The new standard also adds content that can help consumers identify the authenticity of the security door, that is, it requires that there should be a permanent fixed mark of intaglio on the upper corner of the hinge (hinge) on the inside of the security door.
The mark is composed of three parts, the mark symbol is a pinyin letter, from left to right: anti-theft security door feature code, anti-theft security level and enterprise custom features. If there is no marking, it is an anti-theft security door that does not meet the new national standard.
The third is to distinguish the difference between anti-theft security doors and metal doors. When ordering, let the operator indicate the anti-theft door in the product name column to prevent the illegal operator from passing off as an anti-theft door with steel doors, protective doors, anti-prying doors, armored doors, etc.; Before installation, check whether the actual product is the same as the ordered sample; Finally, remember to ask for warranty cards, invoices and other documents, so that you can protect your rights in time if there is a problem.
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Anonymous users2024-01-23When buying an anti-theft door lock, I should pay attention to these points, and I also know that I learned to remember to remind my family.
The most important thing is the quality, the quality is good, and the anti-theft effect will be very good (Ya'an).
There are troubles in the installation of online shopping security doors, if this problem is solved, it is the quality of the door. Therefore, it is advisable to choose a first-line brand of security door. I hope my answer can help you.
First, the brand brand explains the strength and is the guarantee of after-sales in the future. Small manufacturers are unable to guarantee after-sales and claims. >>>More
As we all know, the anti-theft door has a very prominent anti-theft and anti-skid performance, and its anti-theft and anti-skid performance is mainly determined by its lock cylinder and door leaf material and design, but the advantage of the anti-theft door also needs to be supported by its good installation quality, so its installation quality is also very important. 1. The installation of the anti-theft door should be in accordance with the type of anti-theft door adopted, and the appropriate installation method should be adopted, because the anti-theft door has three divisions of A, B and C, and the installation quality requirements of different levels of anti-theft doors are different. Naturally, the installation method is also different. 2. The door frame of the anti-theft door can be fixed with the wall by expansion bolts, or the iron parts can be embedded at the hole when the wall is built, and the door frame connector can be welded firmly during installation. 3. No matter what kind of connection method is used between the door frame and the wall, there should be no less than 3 anchorage points on each side, and they should be firmly connected. >>>More
The following four points should be paid attention to when purchasing anti-theft doors: 1. While considering the price and appearance, pay attention to product quality, and buy brand anti-theft doors in the reputable building materials market; 2 Check the inspection report of the anti-theft security door provided by the operator, and the test results should meet the GB17565 1998 "General Technical Conditions for Anti-theft Security Doors" 3. Distinguish the difference between anti-theft security doors and metal doors, do not believe the propaganda of sales personnel, and ask operators to indicate anti-theft doors in the product name column when ordering, so as to prevent illegal operators from impersonating anti-theft doors with "steel doors", "protective doors", "anti-prying doors", "armored doors", etc.; 4. When installing, check whether the appearance of the anti-theft door is the same as the ordered sample, and ask the delivery personnel for warranty cards, invoices and other documents, so as to protect rights in time if there is a problem. The anti-theft door is still good to buy a big brand, for example, the spring anti-theft door is a lifetime warranty, and there is a real |Body|shop, it is more convenient to understand the product.