Anti-theft door to buy security caution in the trap four "more" anti-theft door is of good quality

Due to the poor quality of anti-theft doors installed by some community developers when they delivered their homes, some homeowners and some owners who are engaged in second-hand housing renovations have the need to replace security doors. But does it really need to replace the security door? What kind of security door performance is higher? Most owners feel out of mind. The reporter interviewed relevant experts and experts suggested that, for the sake of insurance, owners whose tenements are older than ten years and developers cannot provide test reports should replace the security doors. In the purchase, the owners should beware of traps such as “entering the door” and “defending the door”.

Q: What to change

The old house is best replaced as a whole


According to Ma Mingyu, an engineer of the Ministry of Public Security’s Ministry of Public Security’s Security and Police Electronic Product Quality Testing Center, many old residential “security doors” are casually installed with an ordinary iron or steel door in front of a wooden door. Strictly speaking, These doors can not be called security doors, and some communities do not even have iron gates. With the increase of social mobility, and most of the property management of the old community is not very in place, the “security door” at home can no longer meet the needs of the general anti-theft, it is recommended that the owner of the age of more than 10 years replace the security door as a whole.

There is no need to replace the anti-theft door in the newly built community, just replace the lock. However, Ma Mingyu said that due to the lack of corresponding understanding of some security developers on anti-theft doors, the anti-theft awareness is not high, and the anti-theft door may be unqualified. The landlord is required to request the developer to provide a security door detection report when handing in the room. If it is not possible to provide it, it is better to consider replacing the security door as a whole during the renovation.

Q: How to pick

Four "multiple" security doors are of good quality

What kind of security door is best? Ma Mingyu introduced that security doors are divided into steel, stainless steel, steel wood, copper or other composite materials. Among them, steel and steel wood security doors are the most common. The structure of the steel security door includes the outer panel (that is, the panel that stands outside the door) and the inner panel (the panel that stands inside the door). In the middle is a layer of steel skeleton. A good steel anti-theft door skeleton is filled with materials such as asbestos, which has the functions of fire prevention, heat preservation and sound insulation. Steel wood security doors have the same structure as steel security doors except that a layer of wood veneers is added on the surface.

According to the different anti-vandalism performance, China's anti-theft door mandatory standards - "General technical conditions for anti-theft security doors" from high to low security door is divided into A, B, C, D four security levels, and provisions of the business must be in theft The hinges on the inside of the door are marked with Chinese characters in a prominent position about 160 cm above the ground, indicating their safety level. In addition, the thickness of the door frame and the panel thickness of the door leaf must also meet the corresponding requirements. The owner can remove the cat's eyes and doorbells to judge whether the thickness of the door frame and the thickness of the door panel meet the national mandatory standards.

How to identify the same level of security door? According to experts, besides observing the appearance, if the surface of the lacquer layer is free from air bubbles and uniform in color, if the grades are the same, the weight is larger, the locking points are more, the steel frame is denser, and the more the security protection of the lock, the quality is relatively better. Since it is difficult to see the skeleton of the security door, the owner can refer to the product section (profile) provided by the dealer and can also judge from the weight. "In general, the greater the weight, the denser the internal steel skeleton and the more secure the door is, the more secure it is." The lock protection includes the prevention of drill bits and protective sleeves, in which the guard drill bit covers the lock head (eye). Turn it. The protective cover is to pack a few pieces of steel on the lock in the door. Both of these protective measures prevent the locks from being artificially damaged, and the owner can see these configurations during installation.

Q: How to buy

Fine contract signed to avoid disputes


Does the "entry door" and "defense door" indicated on the product label are security doors? Ma Mingyu reminded the owners to be careful about these titles at the time of purchase. He explained that entrance doors, anti-authentication doors, etc., are the same words used by former merchants for security doors. Some of the entrance doors and anti-doors that are currently on the market can meet the requirements of the new national standard, and some cannot. Up to standard. When the owners purchase products that do not meet the standard, once a legal dispute arises, the business will claim that they are selling into the household door rather than the security door. Therefore, it is not necessary to comply with the "General Technical Conditions for the Security Doors," and the owner's rights protection is in trouble.

He reminded the majority of owners that when signing a contract, they must indicate whether they purchased the security door or its quality in line with all the requirements of the “General Technical Conditions for the Security Door”. At the same time, the merchant is required to indicate on the invoice that it is selling a security door. Not other names.

Q: How to install

Mounting attention to ground height


Longfa Decoration Engineering Department manager Miao Fuquan reminded that when the security door is installed, if the door hole is not square or the size and the security door are not on, the wall should be leveled. If the anti-theft door is installed before the ground is processed, be sure to ask what the height of the worker's Floor is after processing, and send the data back to the door factory so as to avoid the situation that the ground is too high during installation. Anti-theft door frames and walls should be closely connected, filled with polyurethane or cement.

After the security door is installed, the industry mainly inspects keys, invoices, and after-sales orders, and other accessories and materials, so there can be no less key situation. A good security door should be easily and flexibly opened with a key, and the door should be flexible and free from jams, abnormal sounds, etc. during the opening of 90 degrees.

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