How to change the lock cylinder of the anti theft door, which is the anti theft lock cylinder

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.

Step 1: Remove the inner and outer handles of the door (unscrew the screws), Step 2: Remove the old lock cylinder (unscrew the screws), Step 3: Install the screws on the lock cylinder, Step 4 Install the screws on the door handle.

I hope my answer can help you.

1. You need to prepare the tools used for replacement, 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. 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.

Steps to change the lock cylinder of the anti-theft door:

Tools: screwdrivers, wrenches, pliers, lock cylinders, keys.

1. Replacing the lock cylinder of the anti-theft door requires some basic tools, including screwdrivers, wrenches, pliers, lock cylinders, keys, etc.

2. First of all, use a screwdriver to disassemble the shell on the anti-theft door and take out the old lock cylinder. Be careful not to damage the door panel and other accessories during disassembly.

3. Insert the new lock cylinder into the security door and fix it with a wrench and pliers. Note that the new cylinder must be the same size as the old one, otherwise it will not work properly.

4. After installing the new lock cylinder, you need to adjust the position of the deadbolt to make it align with the door frame. Use the key to test whether the lock cylinder opens and closes properly.

5. Reinstall the security door shell to the door panel and fix it with a screwdriver. Check whether the lock cylinder and housing are installed securely, and test whether the lock cylinder can be used normally.

Whether the security section of the anti-theft door manuscript mainly lies in the lock cylinder, the anti-theft door lock cylinder plays a pivotal role in home anti-theft, so how to replace the lock cylinder of the anti-theft door do you understand? When changing the lock cylinder, there are some precautions that we have to pay attention to, today I will take you to understand how to replace the lock cylinder of the anti-theft door and the lock cylinder of the anti-theft door**.

1. Find the position of the lock cylinder screw hole and unscrew the lock cylinder screw.

2. Slowly rotate the key, and when the fork is pulled out of the lock cylinder groove in a certain position, the entire lock cylinder can be pulled out of the lock body.

Anti-theft door lock cylinder.

3. At this time, measure the size of the existing lock cylinder, the diameter of the common lock cylinder, that is, the round head is 17mm, and the width of the small head part is 10mm. The height is 33mm, if your cylinder size is the same as this, then determine what the length of L1 and L2 is.

4. After replacing the lock cylinder, tighten the lock cylinder screws, and then install the inner and outer handles.

Misunderstanding of the lock cylinder of the anti-theft door.

The more lock points, the safer it is, which is a mistake that most people are prone to make, thinking that the more lock points, the higher the anti-theft level. In fact, it is not that the more lock points, the more expensive the security door, the better, under normal circumstances, 4 lock points of the security door are enough.

The role of the lock point of the anti-theft door is to prevent prying, but it is the lock cylinder that really controls the telescopic opening and closing of the lock point, and there are many lock points of any anti-theft security door, but the lock cylinder is always one, as long as the lock cylinder is opened, all the lock points can be opened.

Anti-theft door lock cylinder.

1. The United States Duoling super B-level lock cylinder anti-counterfeiting upgraded version of the anti-theft door lock cylinder anti-tin foil door opening element.

2. Golden Pin Atom Super B-level Blade Anti-tin Foil Lock Cylinder Anti-theft Door Lock Cylinder Y60 Series Yuan.

3. Meilibao super B-level lock cylinder C-level lock cylinder blade anti-theft door super B lock cylinder anti-tin foil yuan.

Anti-theft door lock cylinder.

4. The fifth generation of Meilibao anti-theft door lock cylinder super B-level lock potato core C-grade double-blade lock cylinder anti-tin foil yuan.

5. Ma anti-theft door lock cylinder super B lock cylinder 750A1 blade lock cylinder anti-theft, anti-prying, anti-tin foil lock cylinder Yuan grip filial piety.

<>Before replacing the lock cylinder of the security door, you should prepare the tools needed to replace the lock cylinder of the security door, such as a hammer, a Phillips screwdriver, a new lock cylinder, etc. When buying a new security door lock cylinder, you should choose a product with excellent quality and performance. Due to the short service life of poor quality lock cylinders, they are easy to be damaged, and need to be replaced frequently, which not only wastes money and time, but also affects the daily life of the owners.

When replacing the lock cylinder of the anti-theft door, you should use a plum screwdriver to unscrew and take out the upper and lower screws of the handle panel of the anti-theft door, and then unscrew and remove the screws of the anti-theft sleeve at both ends of the lock cylinder. After all the screws are removed, you can remove the lock and jujube cap 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 it 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 it 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.