Question 1: What kind of anti-theft door lock cylinder is good? Anti-theft door lock cylinders are divided into A, B and super B levels according to the structure:

A level: the key is flat, only one side The single-row bullet slot, the cross key is basically classified as A-level, and it only takes about two or three minutes to open;

B-level: From the key point of view, it is a double-sided double-row bullet slot, even if you have tools and are skilled The work also takes some time;

Super Class B: It is the safest level at present. From the key point of view, it generally has a double-sided double row of bullet slots, and there is a blade or curve next to it. Its lock cylinder design technology The standard is 270 minutes or more.

Generally, it is replaced with a Super B lock cylinder, which has a snake-shaped groove on the key, and costs 200 yuan.

It only costs 70-80 yuan if you buy it online. A lock repairman will earn 100 yuan for one visit.

If possible, it is best to replace it yourself, which saves money and is safe. Meilibao lock cylinder is very good, 70 yuan.

1. The sequence of disassembling the lock cylinder:

1. Remove the two inner and outer handle panels: The screws are on the handle panel inside the house, one above and one below.

2. Remove the inner and outer lock cylinder caps: The screws are on the lock cylinder caps inside the house, which are the left and right sides where the key is inserted.

3. Remove the lock cylinder positioning screw: The screw is on the side of the door, in the middle of the lock tongue, and at the same height as the lock cylinder. That's the thickest one.

4. At this time, you can remove the old lock cylinder: If the old and new lock cylinders are the same, they can be replaced.

2. Install the new lock cylinder:

The order is reverse to that of disassembly. Pay attention to a few points:

1. Before installing the new lock cylinder, give the new lock Add a small amount of lock core lubricant to the core. Turn the key several times.

2. The lock core positioning screw must be tightened to prevent the screw from loosening and making it difficult to open the door in the future.

3. Do not tighten the screw of the lock cylinder cap too tightly to prevent it from rattling and making it difficult to open the lock.

4. When installing the inner handle panel, there is a safety bolt below, which must be inserted into the corresponding safety bolt hole.

Question 2: Which brand of lock cylinder is the best and safest? Before choosing an anti-theft door lock cylinder, it is completely necessary to have a simple understanding of the lock cylinder level. At present, the lock cores on the market can be roughly divided into three levels: Class A locks, Class B locks and Super Class B locks.

The structure of the Grade A lock cylinder is relatively simple, which is why the Grade A lock is easy to be picked open. For owners who choose anti-theft doors, they should choose a super B-level anti-theft door lock cylinder to ensure the safety of their family's lives and property to a certain extent.

The lock cylinder adopts a number of anti-theft technologies and a variety of special-shaped anti-pull pins to prevent technical opening. With the unique pin and blade structural design, it has high security performance against technical opening. The lock cylinder is equipped with a structure of precision numbered marbles and special-shaped marbles. When the technical opening is performed, the numbered marbles and special-shaped marbles must be pulled at the same time, and the lock will be automatically locked, thus making the technical opening unsuccessful. The lock cylinder uses multiple combinations of special-shaped marbles, which can program up to billions of key numbers, thereby achieving zero mutual opening of areas (one in sixteen million). The lock core is equipped with a lateral inward pressure side post bayonet device, which greatly improves the ability to prevent violent twisting.

The national standard for anti-theft locks is divided into "ordinary protection level" and "advanced protection level". The former is represented by the letter "A" and the latter is represented by the letter "B". The so-called super B-grade and C-grade locks on the market are defined by some merchants themselves. Strictly speaking, they should be counted as B-grade locks.

Question 3: What is the best level of anti-theft lock core on a security door? The national standard only has level A and level B, with the former being the worst. The appearance of super B and C grades in commercial promotions is just a concept and does not represent the national identification standards. In fact, you only need to care about the brand and technology. The worst is the pinball lock cylinder, and now more than 80% of them are this kind; secondly, the magnetic lock cylinder is also very poor; the better ones are the blade lock cylinder, brands such as HMA, Golden Point Atomic, and Meili Guaranteed, wolverine teeth, the exchange price is more than 200 when purchased online.

Question 4: There are several types of lock cylinders for anti-theft door locks, which one is the safest. 1. A-grade lock cylinder, with technical opening time within 1 minute.

Class A lock cylinder is an old-fashioned lock cylinder. The key is a cross-plate or crescent-shaped key with a convex key groove. There is a row of concave key grooves on one or both sides. Thieves of this type of keys use tin foil. It can be opened in a few seconds. If you still use this kind of key in your home, change it quickly. Class A lock cylinders can no longer protect against thieves.

2. Class B lock cylinder, with technical opening time within 5 minutes.

Class B lock core keys are flat or crescent-shaped. Class B lock keys are more complex than Class A keys. The key slot is single or double-sided with two rows of concave or cylindrical multi-point concave shapes. Key hole.

3. Super B-level lock cylinder, which cannot be opened technically or the technical opening time exceeds 270 minutes. Some people also call it a C-level lock cylinder, which means that the security exceeds B-level.

The super-B grade lock cylinder key is flat-type, and the key slot has two rows of concave and S-shapes on one side or both sides, or a double-snake-shaped internal milling groove structure. It is the most complex lock cylinder and the safest lock cylinder. The tool cannot even be opened if the opening time is more than 270 minutes. It is best to use a super B-level lock cylinder when using a lock cylinder. The Wangli anti-theft door mini lock cylinder on Home Hotline is very powerful.

Question 5: What does the ABC level of anti-theft door lock core mean? Which level of lock cylinder is the best? You should be talking about the level of anti-theft door lock cylinder.

The levels of anti-theft door lock cylinders are divided into Class A, Class B, and Super Class B (Class C). Class C is the best. If the lock cylinder has idling, it is better than the one without idling! Just ask the boss when you go to find the lock cylinder. Generally, C-level lock cylinders are much more expensive. A-grade lock cylinder has the lowest anti-theft coefficient. For thieves, it can be opened in minutes! If I have any suggestion, it should at least be a super-B grade lock cylinder!

You can choose Meilibao or Jindian Atomic

yun.baidu/s/1gd2CvoJ

Question 6: What brand of anti-theft door lock cylinder is the best recommendation? You can change to a super B-class curved groove lock cylinder or a C-class blade lock. The more cost-effective super B-class lock cylinders on the market now include Saner, Soderan, Hongdun, and Jiawei, which are both good in quality and anti-theft performance. The best-performing lock on the market now is the Mingshen brand steel blade lock. The steel lock core is resistant to violent unlocking such as breaking. The price is slightly higher. The key to the safety protection of an anti-theft door lies in the lock cylinder. It is recommended that you change it to one with higher anti-theft performance. Just a personal suggestion!

Question 7: How many kinds of good anti-theft lock cylinders are there? Super B-level lock cylinders with higher price-performance ratio include Omeilun, Meilibao, Wolverine, and Jiale, all of which have good quality and anti-theft performance.

The prices of Manshen, HMA, Jindian Atomic, and Baodean are slightly higher.

Anti-theft door lock cores are divided into A, B and super B levels according to their structures:

Level A: The key is flat, with only a single row of bullet grooves on one side, and the cross key is basically Level A, it only takes about two or three minutes to open;

Level B: Judging from the key, it has a double-sided double row of bullet slots. Even if you have the tools, a skilled worker will need some time;

Super Class B: It is currently the most secure level. From the key’s perspective, it is generally double-sided and double-row bullet slots, with a blade or curve next to it. Its lock core design technical standard is more than 270 minutes.

Generally, it is replaced with a Super B lock cylinder, which has a snake-shaped groove on the key, and costs 200 yuan.

It only costs 70-80 yuan if you buy it online. A lock repairman will earn 100 yuan for one visit.

If possible, it is best to replace it yourself, which saves money and is safe. Meilibao lock cylinder is very good, 70 yuan.

Please accept it as a satisfactory answer.

Question 8: What kind of lock cylinder is more anti-theft now? I suggest you change to a super B-class hyperbolic groove lock cylinder or a super C-class blade lock. The Baojiabao brand is good. It is good in price, anti-theft, and has good quality. It is also guaranteed. Now Baojiabao’s latest anti-theft lock cylinder, the super C-class blade lock cylinder, is more anti-theft than other ordinary C-class blade lock cylinders. The key to the security protection of an anti-theft door lies in the lock cylinder. It is recommended that you change to a lock cylinder with high anti-theft performance.

Anti-theft door lock cores are divided into A, B and super B and C levels according to their structures. Super level C:

Level A: The key is flat, with only one side and one row. The bullet slot and the cross key are basically classified as A-level, and it only takes about two or three minutes to open;

B-level: Judging from the key, it is a double-sided double-row bullet slot. Even if a skilled worker has tools, It takes some time;

Super B level: It is a relatively safe level at present. From the perspective of the key, it generally has a double-sided double row of bullet slots, and there is a blade or curve next to it. Its lock core design technical standards for over 270 minutes.

Super C level; currently the safest anti-theft lock cylinder, the highest level, with double-sided blade curves.

Question 9: Which brand of lock cylinder is good? Top ten brands of lock cylinder NO.1 Wangli

Wangli, from Wangli Group Co., Ltd., is a well-known trademark in China and a famous brand product in China. The top ten brands of anti-theft door lock cores in China, the 500 most valuable brands in China, and the famous brands in the industry.

Top ten brands of lock cylinders NO.2 Jindian Atomic

Jindian Atomic, Guangdong Jindian Atomic Lock Manufacturing Co., Ltd., one of the top ten brands of anti-theft door lock cylinders, the leading domestic lock Core Brand, a private technology enterprise in Guangdong Province, a high-tech enterprise, and a well-known enterprise in the lock manufacturing industry.

NO.3 Wanjia, the top ten brands of lock cylinders

Wanjia, China Wanjia Group Co., Ltd., a well-known trademark in China, one of the top ten brands of anti-theft door lock cylinders, a famous trademark of Zhejiang Province , a famous brand product in Zhejiang Province.

NO.4 among the top ten brands of lock cylinders: Baodean

Baodean, from Zhejiang Baodean Security Products Co., Ltd., is a company integrating design, development, production, sales and A professional lock manufacturing enterprise with integrated services, one of the top ten brands of anti-theft door lock cores, and a well-known trademark in China.

NO.5 among the top ten lock cylinder brands GULI

Guli, Guli Security Products Co., Ltd., Guangdong Province high-tech enterprise, Guangdong Province famous brand product, anti-theft door lock cylinder Top ten brands, famous trademarks in Guangdong Province, and a global leader in door opening solutions.

NO.6 Xinduo among the top ten brands of lock cylinders

Xinduo, China Xinduo Group Co., Ltd., a well-known trademark in China, one of the top ten brands of anti-theft door lock cylinders, a famous trademark in Zhejiang, Zhejiang famous brand products, world-renowned brands, and Chinese export famous brands.

NO.7 among the top ten brands of lock cylinders, Modile

Modile, Shenzhen Changen Industrial Co., Ltd., is a brand of the Israeli ASSA ABLOY Group , the group was founded in 1973. It is a world-famous brand and one of the top ten brands of anti-theft door lock cylinders.

NO.8 Meilibao among the top ten brands of lock cores

Meilibao, Zhejiang Meilibao Lock Industry Co., Ltd., is a professional company integrating R&D, production and sales. A lock cylinder manufacturing company, a well-known lock cylinder brand, one of the top ten brands of anti-theft door lock cylinders, and an influential brand in the industry.

NO.9 among the top ten brands of lock cores: Hongli

Hongli, from Zhejiang Hongli Lock Industry Co., Ltd., is the only comprehensive manufacturer of anti-theft locks and hardware products with independent development capabilities in China. The company has a number of national invention patents, one of the top ten brands of anti-theft door lock cores, and a well-known trademark in China.

NO.10 ROCK Anheng, the top ten brands of lock cylinders

Anheng, from Beijing Anheng Litong Technology Development Co., Ltd., is a leading high-end construction hardware manufacturer with completely independent intellectual property rights. Zhongguancun high-tech enterprise, one of the top ten brands of anti-theft door lock cylinders, and a famous brand product in China.

Does this solve your problem?

Question 10: Which brand of anti-theft door lock cylinder is the best? Currently, the best brand is the gold dot atomic blade idling lock cylinder, but idling is a bit troublesome for the elderly and children in practical use, and some elderly people are not very good at opening it at first. . I am a professional locksmith and have encountered many of them. It is recommended to replace it with gold dot blades that are not idling. Of course, you can also replace them with h-magnetic blades. The quality and structure are exactly the same as gold dot blades. These are the best ones in China. The anti-theft performance is nothing to mention, but of course there are many more. However, considering the convenience of matching keys in the future, it is recommended to use these two types.