Nowadays, smart door locks are becoming more and more popular, and we often pay more attention to its shape when choosing. In short, the more cool the unlocking method is, the more attractive it will be for us to buy. However, the core of both traditional mechanical locks and smart locks is the structure of the lock core. Now there are more and more cases of burglary, and we often see such news on TV. Therefore, while people strengthen their awareness of prevention, they also have high requirements for the anti-theft function of security doors-Laiwu Wanbao Unlocking and Auto Key Company Tel: 0634-6666266.
So what determines the anti-theft coefficient of the security door, of course, is the level of the door lock. The higher the level, the higher its anti-theft performance. So what I want to explain to you today is to change the lock core of the security door.
Generally, we often say that there are three lock cylinder levels: A, B and C. We can distinguish the level of the lock core of the burglarproof door lock from the key. A-class lock At present, the keys of A-class anti-theft lock on the market mainly include one-word key and cross key. The internal structure of A-class lock core is very simple, which is our ordinary door lock at ordinary times, only limited to the change of marbles, and the marbles slots are few and shallow. The anti-technical opening time is within 1 minute, and the mutual opening rate is extremely high. The marble structure is single-row marble or cross lock. Relatively speaking, it is also very good to match the key. B-class lock B-class lock key is a flat key with double rows of marble grooves, which is different from A-class lock in that there is a row of crooked and irregular lines on the key face. There are three main types of lock cores: computer double-row lock core, double-row crescent lock core and double-sided blade lock core. The anti-technical opening time is within 5 minutes, and the mutual opening rate is high. The lock cylinder can be opened within 1 minute by strong twisting tool. The key shape of super B-class lock (Class C) is a single-sided blade internal milling key or external milling key, and the lock core type is a side column lock core; After 270 minutes of testing by the Ministry of Public Security, it was impossible to open the technology, and the inter-regional opening rate was zero (one in 16 million). The marble structure is locked by double rows of blades and V-shaped side columns; If the lock core is opened with a strong twist tool, the inside of the lock core will be destroyed and locked by self-explosion, resulting in failure to open it. Keys can hardly be matched. How to choose the lock core of the security door 1. Look at the "teeth" of the key. The more teeth, the deeper the teeth, the more complicated the arrangement, the more difficult it is to open, and the better the anti-theft performance. 2. Weigh the lock according to the weight, and compare the lock core with the weight. The heavier the weight, the better the quality of the lock core, and the more beads in the lock core, the better the anti-theft function.3. Choose the lock core to see the color, and look at the workmanship than the color. The lock core with good quality is electroplated with smooth surface and bright color. Among them, the dark yellow one is copper core, which is relatively strong and has good anti-theft performance. The lock core is dim in color, and the zinc alloy with bubbles is gray in color, which has general anti-theft performance. 4. When the key is rotated and inserted into the lock core, it has poor anti-theft performance. After the key is half-inserted, it rotates clockwise or counterclockwise with 5 to 7 components and continues to press the key into the lock mouth. The stuck key indicates that the anti-theft performance of the lock core is poor, and the anti-theft effect is good when it is successfully inserted into the lock core in a semi-rotating state. What are the industry standards for smart locks and how to choose lock cores? Smart lock is one of the hottest products in the field of smart home in recent two years. Many lock brands, Internet companies, traditional home appliance companies and entrepreneurs have invested in the blue ocean of smart locks. However, no matter how powerful the smart lock is, it must first be a good family door lock, which is safe against theft and reliable in quality. Under the current chaos in the smart lock industry, some manufacturers may not meet the basic needs of consumers. Since there is chaos in the smart lock industry, it must be bound by industry standards. What are the lock industry standards? 1. National Mandatory Standard (GB21556-2008)GB21556-2008 "General Technical Conditions for Lock Safety" is the only national standard in the domestic lock industry at present, and it is a mandatory national standard, which means that no matter whether an enterprise declares to implement the standard or not, it must strictly abide by it and be bound by it.The standard GB21556-2008 "General Technical Conditions for Lock Safety" covers the vast majority of civil locks currently circulating in the market, among which Chapter 4.10 makes corresponding requirements for electronic anti-theft locks, which is the passing line of electronic anti-theft locks, that is, all smart locks must comply with the standards. In order to better promote the healthy development of China’s lock industry, improve the development level of the industry and enhance the development pattern, on May 12, 2018, the "Revision Seminar of GB21556-2008 General Technical Conditions for Lock Safety" was held in Zhuhai, Guangdong Province. The success of this meeting marked that the revision of this compulsory national standard for locks was put on the agenda. 2. The industry standard of the Ministry of Public Security is the smart lock standard formulated by the standardization department of the Ministry of Public Security. The earliest standards are GA374-2001 "Electronic Anti-theft Lock" and GA701-2007 "General Technical Requirements for Fingerprint Anti-theft Lock", which is the most widely circulated industry standard in the smart lock industry at present, and many enterprises have passed the qualification certification of the Ministry of Public Security based on this standard. GA/T 73-2015 is also the lock industry standard promoted by the Ministry of Public Security. This standard was drafted according to the rules given in GB/T 1.1-2009. On the basis of reference to the EU lock standard EN12209:2003, GA/T 73-1994 was revised and replaced GA/T 73-1994.GA/T 73-2015 "Mechanical Anti-theft Lock" standard clearly increases the anti-theft standard of class C lock. In fact, in the lock industry, through technical exchanges and upgrades, enterprises have reached another anti-theft standard commonly used in the lock industry on the basis of the old B-class lock standard, that is, super B-class locks. Therefore, after the passage of class C locks, the statement of super class B locks will be gradually abandoned. 3. The Ministry of Housing and Urban-Rural Development standard JB/T 5934-2014 "Construction Machinery Door Lock" is a recommended standard launched by the standardization organization of the Ministry of Housing and Urban-Rural Development in 2014, which is not mandatory. At present, there are not many domestic related enterprises strictly implementing it. It should be noted that national mandatory standards must be observed regardless of whether they are declared or not. Except for the national mandatory standards, all other standards with T are recommended and not mandatory! Intelligent lock Intelligent lock is the product of the combination of traditional mechanical lock, modern information technology and biotechnology. The soul of most intelligent locks is still the traditional mechanical lock, which also has two parts: lock body and lock core. The lock body is one of the important parts of the intelligent lock, which is responsible for the basic anti-theft and switching work of the security door. The square shaft and the lock core control the operation of the lock body, and the lock body is responsible for locking the door, which plays an important role in anti-theft. The classification of lock bodies can be divided into national standard lock bodies and non-national standard lock bodies. The national standard lock body is 6068 lock body, and 6068 means that the distance from the lock body to the guide plate is 60 mm, and the distance from Dafang Steel to the anti-lock square steel is 68 mm. 6068 lock body is simple to install and has strong universality and applicability.And some manufacturers also make lock bodies for their own use, which is troublesome to install, requires holes and takes a long time to install. The lock body is made of 304 stainless steel, which is durable, reliable, wear-resistant and not easy to rust. If poor quality iron sheet, zinc alloy and common alloy are selected, it is easy to rust and mildew, and its durability is poor. 4. Baodean lock body Baodean is a manufacturer of anti-theft locks of well-known brands. Because of its huge supporting quantity in the door factory, a separate model called Baodean lock body has been derived. It mainly includes Xiaoshuai, Type 11, Type 13, Type 12 and General Type. Only the universal lock body is similar to 6068. 5. European-standard locks and American-standard locks are generally mainly used in domestic commercial places, but American-standard locks are now more common in civil use. The European standard lock body is the same as the domestic lock body in appearance, but there are differences in size, and the size of the European standard lock body is relatively uniform. In China, there are basically no European standard locks with uniform sizes, such as 55*72 and 60*72, which are basically inconsistent with the European standard, but the name is European standard locks, which are generally used in indoor doors. American standard lock body mainly refers to the lock body of American lock in China. Generally, there are two kinds, one is called hand lock with single tongue, and the other is called American large handle lock, which is generally used in luxury houses. The classification of American lock cores commonly used in domestic villas is the most obvious and important part to test the safety of family locks. At present, there are three levels of standards of the Ministry of Public Security: A, B and C.The difference between A, B and C lock cores in the lock core standard of the Ministry of Public Security: A lock core safety factor: extremely low safety factor! Most of them will attract "Jiang Yang thieves", so change the lock quickly! Technical difficulty: in destructive unlocking time, drilling, prying, pulling and impact prevention are more than 10 minutes, and sawing is more than 5 minutes; Technical unlocking time is more than 1 minute. The damage prevention is very poor. Class a lock key type: straight or cross key. Structure: The structure of this lock is very simple, only five or six marbles are needed. Evaluation: the price is very low, and the safety factor is also very low. It is mostly used for wooden doors or iron doors in old communities. The marble structure is very simple. It can be opened in minutes with a tinfoil tool, and it will not make a sound when opened. This kind of lock can not only be opened instantly, but also won’t break the lock, so it is not easy to be found. B-class lock core safety factor: the safety factor is relatively high, which can stop most thieves. Technical difficulty: in destructive unlocking time, drilling, prying, pulling and impact prevention are more than 15 minutes, and sawing is more than 5 minutes; Technical unlocking time is more than 5 minutes. Class b lock key type: semi-circular single-row key or double-row blade key. Structure: It is more complicated than single-row pinball lock, and it is difficult to unlock it. Evaluation: The safety factor is higher than that of the flat key lock, and the tinfoil tool can also be opened. Some self-styled products are super B-class lock cores. One side of the double-row blade key is double-row marbles, and the other side is double-row blades, which can prevent violent unlocking, with high safety factor and moderate price.C-class lock core safety factor: the safety factor is very high, but it is not impossible to crack! Technical difficulty: the destructive unlocking time is more than 30 minutes for drilling, sawing, prying, pulling and impact prevention; Technical unlocking time is more than 10 minutes. It is said that the anti-theft unlocking time of some C-class locks can be as high as 400 minutes, which can be said to be very powerful. Class c lock key key type: crescent-shaped multi-row keys or three-row blade-type keys. Structure: all blade structure, the back is flat. There are three dimensions of "groove+pit+mysterious grain" on it. It is said that there are four dimensions of new locks, adding a plane. Evaluation: The safety factor of this lock is extremely high. If the key is accidentally lost, it is basically difficult to open it. It is likely that the lock core will be scrapped before it can be opened. However, when used in smart locks, there is no such problem. Just swipe your card to unlock or fingerprint to unlock, and you don’t need a key at all. The price is certainly higher. True plug/false plug In addition, the lock core can be divided into true plug and false plug, so you must choose the true plug. The true lock core is gourd-shaped and runs through both sides of the lock body, and there is a transmission device in the middle of the lock core for controlling the expansion and contraction of the lock tongue when the key rotates. The length of the true plug lock core and the false plug lock core is only about half of the lock core of the mortise lock body, so the lock core can only be installed outside the lock body, and the transmission device depends on a straight connecting rod. The safety is extremely poor, so don’t buy it. Summary of fake lock core: At present, the industry standard of smart lock is not perfect, except for the standard of GA/T 73-2015 "Mechanical Anti-theft Lock" of the Ministry of Public Security.Many standards are still old standards more than ten years ago and need to be revised urgently. It has been 10 years since the mandatory national standard GB21556-2008 "General Technical Conditions for Lock Safety", and the revised version has not yet been issued. GA374-2001 "Electronic Anti-theft Lock" and GA701-2007 "General Technical Requirements for Fingerprint Anti-theft Lock" of the Ministry of Public Security are earlier standards. With the full-scale outbreak of smart locks, relevant industry standards are also being formulated at a gallop. After the new national standard is officially introduced, the smart lock industry will surely usher in a new round of reshuffle. However, for friends who just need it, the revision of the standard is not the key. When we buy a smart lock, it is very important to choose what kind of lock body and lock core. The 6068 national standard lock body made of stainless steel has strong versatility, convenient installation, no need to open a keyhole, easy maintenance, and more solid and reliable. Class B and C pure copper lock cores greatly enhance the security of anti-theft door locks, and are the first choice for us to buy household door locks, especially smart locks in the future.