More than two o'clock in the morning yesterday, a criminal case occurred in a rented room on Yan'an East Road. A man and a woman were stabbed by others in the rental room, causing the woman to die. The time of the incident was about two o'clock in the morning. It was learned that another man suspected to have entered the room with a knife had a conflict with the house's staff and caused serious consequences. All the dead and wounded people came to Shanghai from the outside, and the motives for the murder were still to be investigated. While we were stunned, we had to ask how the criminals had sneaked into the house. Security door described as virtual? Today we talk about home guards - security doors.
Security doors are an important barrier to family safety. The quality of security doors is related to people's personal safety and property safety. Therefore, it is important to buy a good security door. However, for the security doors of various materials and various categories on the market, you may find yourself in a dilemma and you do not know how to choose a security door. At present, there are many chaos in the anti-theft door market and there are many hidden consumer traps. Once it is recruited, security will not be guaranteed.
Trap one: golden jade, defeated one
Security doors are divided into grades. From its security level, security doors can be divided into four levels: A, B, C, and D. The level of the security door is closely related to the quality of the lock. Many of the high-grade security doors nowadays are mostly equipped with common protection locks, and some of them are also used for cutting corners. This kind of “outside the doorâ€, the burglar-proof door inside the door opened up the door to the theft of burglars. Everyone should take a longer look at the selection of the security door and ascertain the protection level of the installed lock.
Mechanical anti-theft door locks are classified into general protection class (A class) and senior care class (B class). In order to save costs, most security doors are only equipped with A-class locks, and the average consumer does not own the quality of the locks. Therefore, when buying, it is easy to mistakenly believe that the high-priced anti-theft door equipped with the lock should be high-grade. level. Moreover, some security door operators deliberately confuse security locks A and B concepts to deceive consumers.
A-level parallel locking bolt, the key is flat, there is drip groove above. Anti-technology is turned on for less than 5 minutes.
Class B parallel bolt, key semi-circular, with a profiled tooth slot. Anti-technical open over 5 minutes in line with the national standard.
Super B-level small handsome Manshen lock body for the T-type rotary bolt, after the lock automatically rotates 90 degrees, the lock cylinder is a double-row marble step-by-step rotation control, the key is double bilateral teeth, the equivalent of two keys to knead a synthesis. Anti-technology is turned on for 270 minutes.
Trap 2: The so-called security door is not a security door at all.
Some “safety doors†and “steel doors†sold on the market do not have product identification codes, security levels, and no relevant information such as certificates of conformity, manufacturer's marks, etc. Businesses have claimed that "security doors" are "security doors" and their role is the same. In fact, according to the “General Technical Conditions for Anti-theft Security Doorsâ€, strict requirements are placed on various indicators of anti-theft doors, and only those doors that meet the standards for testing and passing inspections can be called anti-theft doors.
The so-called "security door" is just a concept that merchants use to confuse and deliberately invent, and its product is essentially an ordinary door. Although these doors are similar to anti-theft doors, if they are stolen by professional thieves, these doors will not provide anti-theft functions and may cause losses to consumers. Therefore, consumers should require the seller to show the relevant department's "certificate of testing" to check whether it meets the technical requirements of the national mandatory standard GB17565-1998.
Trap 3: quality shoddy, door material made a fuss
It stands to reason that the heavier the security door, the better, but there are exceptions. Consumers generally think that the heavier the anti-theft door is, the thicker the steel plate is, and the better the safety performance is, so some unscrupulous manufacturers will fill the door with cement and bricks to increase the weight and deliberately confuse consumers. Consumers should be wary of this. On the market, many merchants are mingled with beads, and are pursuing the slogans such as “guard doorsâ€, “protective doors†and “safety doors†to promote the security doors of the cottages. Some merchants use a thin layer of iron sheet with hard wood boards in between. Filled with paper and other materials, made of a certain weight of the "security door", this iron door opened once opened, the door panel with a few feet to deform. Better anti-theft door frame steel plate thickness should be more than 2mm, door body thickness is generally more than 20mm, the weight of the door is generally more than 40kg, the front and rear panels of the door generally used in steel plate thickness between 0.8-1mm. The national standard requires that stamps be made on the door. The level stamp of the security door is generally on the hinge side of the inner door. If you do not see the steel stamp on the door, it does not meet the requirements of the national standard. It is not a security door.
Security door security door lock
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