How to remove the lock cylinder of an ordinary anti theft door and replace it yourself

First of all, remove the panel, remove 2 lock nails on the inner panel of the door lock, remove the upper and lower screws of the inner side panel, remove the inner handle panel, and then remove the lock cap and the outer handle, there is a screw in the middle of the stall of the lock body on the door side, between the deadbolts, take out this lock cylinder, and the lock cylinder can be taken out.

1. Remove the screw of the handle of the anti-theft door (indoor).

2. Remove the lock guard screw of the lock cylinder (indoor).

3. In the middle of the lock body (door thickness position), remove the screw in the horizontal position corresponding to the lock cylinder (don't remove the other screws, just that one).

4. Take out the lock cylinder and replace it with a new one.

5. Install the lock guard.

6. Install the handle.

1. Remove the door handle = 3 screws.

2. Dismantle the lock cylinder screw in the middle of the lock body = 1.

3. Install the new one.

4. End.

Teach you to disassemble and assemble the lock cylinder of the anti-theft door, replace the lock cylinder, and change it at home by yourself after learning.

The method of changing the lock cylinder of the anti-theft door is as follows:Remove the outside of the doorknob, replace it with a new lock cylinder, and install the doorknob in order.

1. Unscrew the screws of the handle panel with a tool and remove the lock cylinder anti-theft sleeve.

2. Remove the lock cylinder fixing screws on the side of the door lock, and then see the lock cylinder model clearly, and then buy the same model.

3. After selecting the lock cylinder, unscrew the two screws on and below the handle panel to install the new lock cylinder.

The lock cylinder adopts a number of anti-theft technologies, a variety of special-shaped anti-pull bullets, to prevent technical opening, with a unique design of the bullet and blade structure, with a high safety performance of anti-technical opening. The lock tank is equipped with a precision number bullet and a special-shaped bullet structure, which will be automatically locked when the number bullet and the special-shaped bullet must be pulled at the same time when the technology is opened, so that the technology will be turned on in vain. The lock cylinder adopts a variety of special-shaped marbles in multiple combinations, and can compile up to billions of key numbers, so as to achieve zero mutual opening of the area.

The lock cylinder is equipped with a lateral internal pressure side post bayonet device, which greatly improves the ability to prevent violent torsion.

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1. Remove the upper and lower screws of the inner side panel

2. Remove the inner handle panel, and then remove the lock cap and the outer handle

3. Unscrew down the screws fixing the lock cylinder on the vertical edge of the door and pull out the lock body

First of all, remove the panel, remove 2 lock nails on the inner panel of the door lock, remove the upper and lower screws of the inner side panel, remove the inner handle panel, and then remove the lock cap and the outer handle, there is a screw in the middle of the stall of the lock body on the door side, between the deadbolts, take out this lock cylinder, and the lock cylinder can be taken out.

Sequence of disassembling the lock cylinder:

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.

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.

The picture above gives you instructions. Generally, it is installed from two directions, one is to remove the handle panel from the inside. One is to remove the set screws on this side of the deadbolt.

Step 1: Remove the handle first.

This is the doorknob that was removed.

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Step 2: Remove the lock cylinder, there are screws on it, and it is easy to remove.

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Tear this off first.

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This fixed lock cylinder is fastened by a large screw.

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It's all been torn down.

Change the lock cylinder of the anti-theft door:

First know how to remove the lock cylinder of the anti-theft door, and then replace it with a new lock cylinder, reinstall it, you need to prepare a Phillips conch repentance lack of wire knife, there are generally a variety of types of screwdriver toolboxes in the home, according to the screw specifications of the lock, the following is how to change the lock cylinder of the anti-theft door steps:

Summary. Hello friend, if you want to change the lock cylinder, just take a screwdriver and remove the outer handle. Remove the overall large screws on both sides of the security door, and after opening it, you can see the lock cylinder inside, he has two screws to fix, remove the two small screws, so that they can be replaced.

It's still very easy.

Hello friend, if you want to change the lock cylinder with a cavity base, you just need to take a screwdriver to remove the outer handle. Remove the overall large screws on both sides of the security door, and after opening, you can see the lock cylinder inside, he has two screws to fix, remove the two small screws, so that they can be replaced. It's still very easy.

The lock cylinder can't be removed.

This level is already okay, then maybe this door is a little deformed and stuck, pull her out with pliers, and try.

The method of removing and replacing the lock cylinder of the anti-theft door lock is as follows:

Tools: hammer, screwdriver, lock cylinder.

1. Prepare tools

Before replacement, you need to prepare some tools in advance, such as: hammers, screwdrivers, lock cylinders, etc. And also pay attention to the accessories of the door lock, usually the newly bought door lock has these accessories, when unpacking and unpacking, to carefully check whether the accessories are complete.

2. Disassemble the door lock

Then start to disassemble the door lock, you must first use a screwdriver to unscrew the handle on the door, find the upper and lower two screw holes, and unscrew it. Once the screws are unscrewed, the handle can be removed, and the door lock and handle are removed together.

3. Disassemble the lock cylinder

After the door lock is removed, you can find the position of the lock cylinder, at this time, you only need to remove the lock cylinder with a screwdriver. If the Silver Sock cylinder is difficult to remove, you can use a small hammer to gently tap next to the cylinder, and the cylinder can be removed. After the old lock cylinder is disassembled, start to install the new lock cylinder, and pay attention to purchasing the matching lock cylinder when installing, otherwise the model will not be installed if the model is different.

4. Install the lock cylinder

Install the lock cylinder in its original position, and it is best to have someone to help with the operation, and the other person needs to hold the door lock behind it with his hand to prevent the door lock from falling. And it can also ensure that the lock cylinder can be easily installed, the installation is more accurate, and then the screws are screwed.

5. Install the door lock

After that, install the door lock back, and when installing, you need to align the upper and lower holes on the door lock and install it on the door. After installation, check whether the door lock is opened flexibly, whether the screws are tightened, and if it cannot be used, it needs to be reinstalled.

Summary. Hello, dear. The method of removing and replacing the lock cylinder of the anti-theft door lock is as follows; 1. Unscrew the two screws on the top and bottom of the pull handle panel.

2. Unscrew the lock cylinder and screws. 3. Remove the lock cylinder anti-theft sleeve and remove the old lock cylinder. 4. Install the handle after installing the lock cylinder anti-theft shell.

5. Install and close the inner and outer handles, and the outer handles should be held down. 6. Then adjust the inner and outer handles, and the screw holes should be aligned with the nut and then rotate the screws. 7. Finally, insert the screws and tighten them.

Hello, dear. The anti-theft door lock is removed and replaced, and the preparation method is as follows; 1. Unscrew the two screws on the top and bottom of the pull handle panel. 2. Unscrew the lock cylinder and screws.

3. Remove the lock cylinder anti-theft sleeve and remove the old lock cylinder. 4. Install the lock cylinder to prevent the spring from destroying the shell, and then install the forest shirt. 5. Install and close the inner and outer handles, and the outer handles should be held down.

6. Then adjust the inner and outer handles, and the screw holes should be aligned with the nut and then rotate the screws. 7. Finally, insert the screws and tighten them.

Topwise Scramble Materials; As the name suggests, the door lock is a device used to lock the door to prevent others from breaking the bridge and opening the door. There are many classifications of door locks, and the requirements for door locks are different on various occasions. According to the principle of the lock cylinder, anti-theft locks can be divided into bullet locks, blade locks, magnetic locks, smart card door locks, fingerprint locks, etc.

The method of changing the lock cylinder of the anti-theft door by itself is as follows:

Tighten the two screws on the handle panel, then unscrew the lock cylinder and screws. Then remove the anti-theft sleeve of the lock cylinder, and then disassemble the old lock cylinder. Install the lock cylinder anti-theft case and handle, and it is best to have someone help to hold it when installing the inner and outer handles.

Next, adjust the inner and outer handles, the screw hole and the nut should be aligned, and then directly insert the screw and tighten it.

How to choose an anti-theft door lock cylinder

1. We know that the internal structure of the lock cylinder is very important, generally speaking, the blade side column structure will be better than the ordinary marble structure, which is related to people's safety, so we must choose carefully when choosing.

2. Then use the key to test the effect of the lock cylinder, first insert the key half-inserted and rotate the key to the lock mouth with five to seven parts, if the key is stuck, it means that the lock cylinder is not particularly good anti-theft.

3. The tooth flower of the key can directly judge the structure of the key, and the more complicated the tooth flower arrangement, the better its anti-theft performance.

4. It is said that the more steel balls contained in the lock cylinder, the better the quality of the lock cylinder.

5. Observe the color of the lock cylinder of the anti-theft. Like some high-quality lock cylinders, they are usually electroplated, and its surface is smooth and very comfortable to the touch, so it is better to choose a copper core material with a darker yellow color, which is also stronger and better in anti-theft. If the color of the lock cylinder is relatively light, it is likely to be made of zinc alloy, and the anti-theft performance is not very good.