How to change the lock cylinder when the lock cylinder of the door is broken, how to replace the loc

To change the lock cylinder, first remove the cover plate of the lock, then pull out the lock cylinder, and replace the new one, the specific steps are as follows:

hammers, new cylinders, accessories and more. Use a screwdriver to remove the screws on the door lock handle, and then remove the screws at both ends of the lock cylinder, and then you can remove the lock cap of the door lock.

The next step is to remove the old lock cylinder from the door lock, if there is no way to remove the lock cylinder at this time, you can use a hammer to continuously knock on the lock cylinder position until the lock cylinder can be removed.

2. Then you can install the new lock cylinder. In order to make the handle more accurate and tight, people can help grab the outside handle and install it together, so that the inner and outer handles can be symmetrically catered to and easier to install.

3. Then use a screwdriver to install the screws on the handle back, and be sure to align the door hole position of the screws when installing, and should be installed vertically, otherwise the screws cannot be tightened. If the screws are not installed vertically, then you should shake the screws, and when you find the location of the door hole of the screws, you can tighten the screws.

4. Finally, after the relevant accessories of the door are installed, it means that the replacement of the lock cylinder is completed. In order to ensure the successful replacement of the lock cylinder, you can use the key to open and close the lock cylinder to see if the opening is smooth, whether the screws are tightened, etc., if the lock cylinder can not be opened and closed normally, then the lock cylinder needs to be replaced again.

How to change the lock cylinder:

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 in the lock cylinder groove at a certain position, the entire lock cylinder can be pulled out of the lock body.

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

Fourth, after replacing the lock cylinder, tighten the lock cylinder screws, and then install the inner and outer handles, there are two screw eyes on the handles in the room, and tighten the screws.

Of course, if you can't replace the lock cylinder of the home security door by yourself, then you have to find a professional master to replace it.

Precautions are required to change the lock cylinder:

1. When we change the lock cylinder for the anti-theft door, we must first choose the lock cylinder of the same size, and at this time, we should find the location of the lock cylinder of the anti-theft door, remove the corresponding screws, use the key, pull out the original lock cylinder from the door lock, measure the size of the lock cylinder, and facilitate us to buy the appropriate size of the anti-theft door lock cylinder.

2. Technical problems of changing locks for anti-theft doors. To change the lock of the security door, we generally do not directly pay attention to how much it costs to change the lock of the security door, but will consider replacing it ourselves. Replacing the lock cylinder is not difficult, the key is to master a few essentials.

The first thing to do is to remove the old cylinder. To take out the old lock cylinder, you must unscrew the screw under the handle panel, and then unscrew the lock cylinder sleeve, etc. Then install the new lock cylinder and the community, and pay attention to the screws that fix the panel should not be too tight.

3. When we choose the right lock cylinder, the next step is to install, although the steps and methods of installation and disassembly are very different, but we should pay attention to the screws should not be too tight when installing, or the anti-theft door handle is not easy to open.

4. The tool problem of changing the lock of the anti-theft door. In addition, you must prepare the necessary tools when changing the lock of the security door. If you don't have tools, you can't do it alone.

The tools that need to be prepared are: a Phillips screwdriver, a set of corresponding door locks, and the specific operation methods are as follows:

1. First remove all the screws on the original door lock, as shown in the figure below

2. Then remove the two screws that fix the door lock, as shown in the figure below

3. After that, you can remove the entire door lock, as shown in the figure below

4. Then push out the lock cylinder of the door lock to the door, as shown in the figure below

5. After that, push the lock cylinder that needs to be replaced back into the door opening, as shown in the following figure:

6. Then lock the fixed iron sheet, as shown in the figure below

7. Finally, re-lock the screws that fix the door lock, as shown in the figure below

8. In this way, the anti-theft door lock will be replaced, as shown in the figure below

Hello dear, the handling method is as follows":"1First of all, prepare the screwdriver, aim the screwdriver at the position of the lock core hole, and hit it hard with a hammer to knock the screwdriver into it; 2.

Then use a live wrench to move the screwdriver to forcibly destroy the lock cylinder from the inside; 3.Finally, use pliers to clip out the broken lock cylinder. The use of a flathead screwdriver instead of the deadbolt can turn the linkage point of the door lock to achieve forced door opening.

Pay attention to the strength of destruction during the unlocking process, and do not cause damage to the door body. If my answer is helpful to you, please give a thumbs up (in the lower left corner), I look forward to your like, your efforts are very important to me, and your support is also the motivation for my progress. If you feel that my answer is still full of meaning, you can click on my avatar for one-on-one consultation.

Finally, I wish you good health and a good mood!

If the lock cylinder of the bedroom door is broken, you can use the help of forced unlockingWrenchandScrewdriversand other tools to force unlocking.

After the lock cylinder is broken, it is definitely impossible to open the door lock through the key, in this case, we have to pry all the discs of the door lock first. Before picking the door lock, we need to prepare a wrench and a screwdriver and other tools, and after prying the door lock disc, we need to use a flathead screwdriver to unscrew the two screws inside the door lock. Finally, pull out the damaged cylinder and door lock from the outer end of the door.

Forced unlocking is a technical job, and it is recommended that you should ask a professional to help you to ensure that the lock cylinder can be used normally. If the cylinder does not open because there is a problem with the internal deadbolt, you should find out the position of the deadbolt and reset the screws fixed to the correct position from the crack in the door.

How to choose a bedroom door lock?

1. Look at the appearance

Generally speaking, all bedroom door locks need to go through the process of plating, spraying or painting before leaving the factory. These processes are beneficial to the bedroom door lock itself, because after the treatment of these processes, a protective film will be formed on the surface of the bedroom door lock, so as to play the role of anti-corrosion and anti-oxidation. Therefore, if the appearance of the door lock does not show the traces of this treatment, then it is best not to choose.

At the same time, we should also look at the appearance of the door lock and the door when choosing.

It is in harmony with the room.

2. Look at the weight and feel

** and defective products.

There are differences in weight and feel. Let's say it's a door lock that cuts corners, then it's usually made from hollow defective materials. Such a door lock is not only lighter, but also feels worse when used.

3. Look at the brand

Whether it is at home or abroad, there are very strict specifications for hardware door locks. Although some small manufacturers will not comply with the specifications in order to save costs, large brands will abide by the specifications. Therefore, when choosing a bedroom door lock, try to choose a well-known door lock.

Dear Glad to answer for you. 1. Disassemble the lock cylinder: disassemble the lock cylinder, then disassemble the lock shell, and hit the lock cylinder with a wooden stick or hammer to return it to the correct position.

2. Adjust with a key: On the right side of the lock, there is an adjusting screw, turn the adjusting screw with a small key, so that the lock cylinder can enter the lock correctly. 3. Use pliers to force unlocking:

Turn the pliers open, use the pliers to compress the cylinder, let the cylinder move clockwise, and then open slowly. 4. Use the key to wipe the lock: Wipe the key into the lock and wipe the lock cylinder vigorously until the lock cylinder is wiped open.

5. Use a hammer to unlock the lock: Put the hammer head on the lock cylinder, hit the lock cylinder hard, and wipe the lock cylinder open. 6. Use a brush or zipper to unlock the lock

Place a brush or zipper into the lock and pull slowly so that the cylinder is removed.

If the orange section of the bedroom door lock is broken and there is no spare key, you can try the following methods to force the lock: 1. Use the card: Insert a plastic card or similar sheet between the lock cylinder and the door frame while gently shaking and twisting the card to try to pop the deadbolt open.

2 Use pliers: Insert a pair of slender pliers into the lock cylinder and try to twist and grasp the deadbolt to open the door lock. 3. Use a drill or screwdriver:

Using a tool such as a drill, hand drill, or screwdriver, start at the hole or on the side of the cylinder and gradually expand the hole diameter until the cylinder is opened. 4. Use locksmith tools: You can buy some professional locksmith tools, such as lock picks, lock cylinder hooks, etc., to try to open the door lock.

It should be noted that all of the above methods may cause damage to the door lock, and special care needs to be taken when forcing the lock to ensure the safety of yourself and the door lock. If none of the above methods are feasible, we recommend that you seek the services of a professional locksmith to ensure that the door lock is fully opened.

The door is broken, and the lock cylinder needs to be replaced. Because a lock cylinder is equipped with a key. The lock cylinder is matched with the key to turn and drive the bolt to move. There are three types of lock cylinders: European lock cylinders, American threaded lock cylinders, and fireproof lock cylinders.

1. The application of European-style lock cylinder is very common, widely used in all kinds of door locks, fire locks and other lock products, the lock cylinder size can be customized according to the thickness of the door, and there is a lock cylinder length of 40mm-160mm.

2. The American threaded lock cylinder is used as a high-grade door lock, with high security. Use less.

3. The fireproof lock cylinder is used in the fireproof door lock, which can withstand the high temperature of 975 degrees for 90 minutes, and is a special door lock cylinder enforced by the state. The general size is 30mmx32mm.

Each cylinder corresponds to a key, so the key must be changed.

The lock cylinder is the core component of the lock, and the lock replacement is to replace the entire lock, including the lock cylinder; Changing the lock cylinder is just to replace the lock cylinder, and the other parts of the lock are still the original, and after the change, the appearance is still the same. But the key follows the cylinder.

It is possible to replace only the outer lock, only the lock cylinder. However, in the future, you will need two different keys, inside and outside.

So considering the convenience, it is recommended to replace it at the same time. From an economic point of view, the outer lock can be replaced.

Most of the reasons for this are that the dial wheel of the lock cylinder is not completely inside the lock cylinder, but is offset at a certain angle, resulting in the key not being able to be pulled out. When you've already inserted the key, slowly turn the cylinder a little bit to make it easy to pull out.

Yes.

It is possible to change only the lock cylinder.

To change the lock cylinder, it is necessary to change the dressing room.

The lock cylinders come with a new key, which is matched.

Of course, you have to change the key, a lock cylinder with a key.