How to change the lock cylinder of the anti theft door?

Many families will follow the anti-theft door, and the most important accessory of the anti-theft door is the lock cylinder. Some owners buy the lock cylinder level of the anti-theft door will be relatively low, and the anti-theft performance is insufficient, so they want a better level and a better anti-theft coefficient. So how to change the lock cylinder of the anti-theft door?

Next, I will briefly introduce it to you.

1. First of all, we can use a screwdriver to rotate the screws above and below the handle door; Then remove the handles on both sides of the door; Then we can judge to see the lock cylinder guard, we rotate the screw on the guard, remove the passport and see the lock cylinder; Next, we rotate out the screws that hold the lock cylinder at the deadbolt and remove the old lock cylinder; In the end, we follow the process of unlocking the lock backwards, install the new lock cylinder back, and after installation, we have to debug.

2. When we choose the lock cylinder of the anti-theft door, we should look at the "teeth" of the key. The more teeth are punched and arranged, the better their anti-theft performance will be. Then we weigh the weight of the lock cylinder by hand, usually the heavier the lock cylinder, the better its quality.

Next, we look at the workmanship of the lock cylinder, a good lock cylinder has a smooth surface and bright color, and the copper core with a dark yellow color is used. When we replace the lock cylinder, we should pay attention to the model specifications of the new lock cylinder.

3. The anti-theft door lock cylinder on the market is divided into three types: A-level, B-level and super B-level, of which Super B-level is a strengthened version of B-level developed by the company. The internal structure of the A-class lock cylinder is relatively simple, its anti-theft coefficient is the worst, and the price is relatively cheap; The anti-theft coefficient of the super B-level lock cylinder is the highest, and the type of lock cylinder is usually the side post lock cylinder, which cannot be technically opened within 270 minutes after inspection, and its price is also the most expensive.

When you choose an anti-theft door, you should pay attention to the anti-theft skills of the product, which we can understand by looking at the performance test report of the lock.

1. It is necessary to prepare the tools used to replace the hammers, screwdrivers, and lock cylinder products that need to be replaced. Use a screwdriver to unscrew the screws of the anti-theft doorknob, and then unscrew the screws at both ends of the lock cylinder, and then you can remove the lock cap.

2. After the above operations are completed, you can remove the lock cylinder, if you can't remove it, you need to use a hammer to gently knock on the periphery of the lock cylinder until the lock cylinder can be removed.

3. The old lock cylinder is removed, you can install the new lock cylinder, first insert the safety bolt back, install the handle in place, and let people grab the outer handle when operating, so as to facilitate the installation of accurate and tight Qi Bump gear. The handle should be screwed in alignment before it can be tightened.

4. The installed screws need to be aligned with the door hole, if there is no vertical, you can shake the screws to quickly find the corresponding position. After screwing the door accessories, you need to check whether the lock is opened smoothly, whether the screws are tightened, etc., if you can't use it, you need to reinstall it.

The lock cylinder of the security door can be said to be particularly important, but we know that no matter what is used, there is a limit, and there will be problems after a long time, so it must be replaced. Let's introduce to you how to change the lock cylinder of the anti-theft door.

1. First of all, remove the screws on the door, remove the panel of the door lock and put it aside.

2. Secondly, remove the two screws that fix the lock cylinder and take out the lock cylinder.

3. Then insert the new lock cylinder, at this time all the screws must be fixed, and finally install the door lock panel.

Which is the best anti-theft door lock cylinder.

1. The level of the lock cylinder of the anti-theft door is basically divided into three levels, namely A-level, B-level, and super B-level (also known as C-level). According to the "National Mechanical Lock Standard", the anti-theft door lock cylinder has two levels, A and B, and the super B level can be said to be an enhanced version of the B level developed by entrepreneurs. Class A Lock:

At present, the A-level anti-theft lock key on the market mainly includes a word key and a cross key. The internal structure of the A-level lock cylinder is still relatively simple, limited to the change of the marble, and the marble groove is few and shallow. The anti-technical opening time is within 1 minute, and the mutual opening rate is extremely high.

The marble structure is a single row of marbles or cross locks. Class B lock: The Class B lock key is a flat key, with a double row of slots, which is different from the Class A lock in that there is an extra row of curved and irregular lines on the key surface.

Super B-level lock (C-level): the key shape is a single-sided blade inner milling groove or external milling groove key, and the lock cylinder type is a side post lock cylinder; After being tested by the Ministry of Public Security, it could not be technically opened for 270 minutes, and the mutual opening rate of the area was zero (1 in 16 million).

2. The best way to identify the level of the anti-theft door lock cylinder is to use the key to identify, and you can easily understand the level of the anti-theft lock when you look at the key.

3. The size of the lock cylinder of the anti-theft door is still before choosing to change the lock cylinder, we must first know what size and specification the lock cylinder of our home is, and only the lock cylinder of the same size and specification can be changed, so we must remove the lock cylinder at home and measure the size.

Summary: How to change the lock cylinder of the anti-theft door is introduced here, and you must follow the above steps to replace it. If you want to know more about related knowledge, you can follow our Qeeka Home to consult.

The lock of the anti-theft door is very easy to change, a plum screwdriver to remove the 2 screws of the handle first, and then find the most centered screw to fix the lock cylinder in the middle of the deadbolt, turn out the screw, and pull out the lock cylinder. The lock body does not need to be disassembled.

In fact, it is useless for you to change the lock, and the lock king can be opened in a few seconds. The most important thing is to find a good lock cylinder first. The lock cylinder level is A and B.

Class A: National professional personnel use professional unlocking tools, without destroying the lock cylinder, can not be opened within one minute, A level qualified, 5 minutes can not open B qualified. This standard has been around for many years, and it doesn't take 1 minute to open these locks with the key unlocking method.

It is recommended to go to the market to find Wang Li's 180-minute anti-technical opening, or Hunan Zhuangzhe brand 240-minute anti-technical opening lock cylinder. But what you have to consider is whether these cylinders will work with your door. The market price of A-grade lock cylinder is 30 yuan.

Let's look at the anti-theft door company first, and call customer service to find after-sales processing. Don't ask for a normal person to trade.

Here are three ways to do this.

1. If the lock cylinder is broken, and you don't want to change the whole door, you can disassemble the lock, find the lock cylinder inside, unscrew it, and reinstall a lock cylinder, 2. Change the door If the lock of the anti-theft door is broken, then you can choose a new anti-theft door to install, remove the old anti-theft door, but reinstall the new anti-theft door, the price will be more expensive than changing the lock cylinder, and it is more troublesome. 3. Find a locksmith anti-theft door lock is broken, can not enter, at this time either the lock cylinder is broken, or the lock body is broken, and the lock cylinder can be replaced by yourself, the lock body is broken, you can only ask a professional locksmith to unlock, to find a locksmith must find a professional and reliable.

Question: Our anti-theft door is a fingerprint lock, the lock is good, but the hand is stuck.

Answer pro I'm glad to be able to solve the problem for you this time, you can trouble you to give Xiaomeng a thumbs up, and then click on the end of the consultation, you can follow me, Xiaomeng wishes you a happy life If you have any questions, you can continue to ask.

Asking questions doesn't close the door.

Take a professional lock change and you can change it.

1. Check whether the anti-theft door key is correct, and whether the anti-theft door key and lock are damaged.

2. The anti-theft door key is not in the right position when inserted into it, and some of it is caused by the dislocation of the lock cylinder, you can press the keyhole with your hand, and then you can move the key with the other hand to try it.

3. The lock cylinder is astringent, the key and the bullet are stuck, at this time, use universal lubrication rust remover to spray into the lock hole, move the key, and then try to turn.

4. Find an anti-theft door repair and lock replacement master to help you open it.

5. You can also fill the keyhole with pencil powder and move the key, and then try to twist it.

Let's talk about the method of changing the lock cylinder of the anti-theft door:

1. Open the anti-theft door, you will see two screws under the lock tongue on the side of the door, unscrew these two screws.

>2. After the two screws on the top are unscrewed, you can take out the original lock cylinder.

>3. Insert the new lock cylinder into the original lock hole, and roughly adjust the position first.

>4. Gently screw the above screws, do not tighten them all at once, and gently tighten the screws while fine-tuning the position of the lock cylinder.

><>5. Guide the above screws to tighten the above screws after you insert the round hole on the lock cylinder. At this point, the lock cylinder is already secured.

>6. Tighten the following screws, the whole process is over, and you're done!

The lock cylinder is easy to remove:

Tool: A Phillips screwdriver.

1. Disassemble the lock cylinder sequence:

1.Remove the inner and outer handle panels: Screw on the handle panel in the house, one on the top and one on the bottom.

2.Remove the inner and outer lock cylinder caps: The screws are on the lock cylinder caps in the house, which are the left and right sides of the key.

3.Dismantle the lock cylinder positioning screw: The screw is on the side of the door, in the middle of the deadbolt, at the same height as the lock cylinder. The thickest one is.

4.At this time, the old cylinder can be removed: the old and new cylinders are the same, and they can be replaced.

Second, install the new lock cylinder:

The order is reversed from when dismantling, and there are a few points to note:

1.Before installing the new lock cylinder, add a small amount of special lubricant to the new lock cylinder. Turn the key several times repeatedly.

2.The lock cylinder positioning screw must be tightened to prevent the screw from loosening and opening the door in the future.

3.Do not tighten the screws of the lock cylinder cap too tightly to prevent screaming and it is not easy to unlock.

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