What to do if the door lock can t be opened, what to do if the door lock can t be opened

If the door lock in the room cannot be opened, you can choose to unscrew the lock cover on the outside of the door lock, replace the lock cylinder, or find a professional locksmith to unlock the lock.

1. Unscrew the lock cover on the outside of the door lock and replace the lock cylinder. Unscrew the outer lock cover of the doorknob first, and then unscrew the inner screws with a screwdriver to see the inner lock cylinder. Remove the lock cylinder and twist the lock cylinder with the key to see what causes the door lock to be opened.

If the lock cylinder is shifted, it can be reused after adjustment. If the lock cylinder is broken, you can only replace the lock cylinder.

2. It is to find a professional locksmith to unlock these two methods. The screws of the door lock are generally installed on the side of the room, so if there is no one in the house or you will not open it, you can only find a professional lockpicker.

If you are looking for a professional locksmith, you must find a regular company that has filed with the local police station and has legal procedures. so as not to cause future use safety.

1.After selecting the lock cylinder, unscrew the two screws on and below the pull handle panel, these two screws are mainly used to fix the panel, as long as you have a Phillips screwdriver, you can complete it, and it is very simple.

2.After the screws are screwed, put the screws, unscrew the lock cylinder and put the screws on both sides of the sleeve, but be careful not to tighten the two screws too tightly during installation, so as not to open the anti-theft door handle too tightly. Remove the handle first, then the lock cap.

3.Put the lock cylinder in the sleeve and remove it, put it together with the screws, remember the steps when disassembling, and the return is the same. Everything that has been dismantled is put away in a unified manner and should not be lost.

4.If you can't pull out the lock cylinder by removing the screws, you should knock it down with the left or right lock head with a hammer, and try again.

Anti-theft door locks generally have several structures such as "blades, IC cards, bullets and fingerprint locks". Among them, "bullet lock" and "blade lock" are more common in people's lives, while the anti-theft door locks of "IC card lock" and "fingerprint lock" are mostly used in the anti-theft system of enterprises, institutions and state administrative organs. Although the lock cylinder of the anti-theft door lock is only a small piece, it is an important component related to the security of the entire anti-theft door, and the anti-theft door lock cylinder on the market is divided into three categories:

A lock, B lock, and B + lock, among which A lock has the simplest structure, so it is easier to be pried open, and B+ lock has the best anti-theft function. If you decide to change a lock, it is recommended to change the lock cylinder of a better brand, which will be safer.

1. Removal of foreign matter: The service life of the door lock is very long, and due to its special properties and functions, the possibility of internal damage to the door lock is relatively low. Most of the times in life when the door lock cannot be opened, it may just be that a foreign object is stuck in it and the door lock cannot be opened.

Push and pull the door lock and shake it off with force, and then use the key to open it.

2. Reduce friction: Prepare a thinner knife, resist the doorknob outside the door lock, and use the knife to reach into the gap of the lock groove and then resist the lock shaft, so as to reduce the friction between the lock groove and the lock shaft. When renting a macro, you can open the door lock by slowly opening the lock with the key, pay attention to the usual maintenance of the door lock, you can sprinkle some lead lubrication.

3. Professionals: If the door lock is damaged or in disrepair due to external force, the door lock needs to be repaired or replaced due to damage to the internal parts. It is recommended to ask someone to repair, because changing the door lock is a more sophisticated project, if you don't know how to change the door lock, it may damage the door lock accessories, and it is best not to replace it at will.

If you find that the door can not be opened, do not open it forcibly, you still need to find a professional lock master to do better.

Sometimes, due to the gravity of the door leaf itself, or the door loose-leaf reason, or the lock is rusty, the door is locked or the door is not opened smoothly. At this time, it is often very difficult to open the door and lock the door with the key, so what should I do if the lock at home cannot be opened?

1. Wipe the appearance of the lock with a dry cloth: use soybean oil, sewing machine oil or sesame oil to drop into the keyhole, dip the key in a few drops of oil, insert it into the keyhole and slowly twitch back and forth a few times, feel smooth, and then twist the key to open. After the lock is opened, use a few drops of oil in time, wipe it with a dry cloth, and maintain it.

2. Pour some kerosene into the keyhole: pour some kerosene into the keyhole, because it has the effect of dissolving rust, and there is a rust-dissolving agent (or WD-40), which is canned and the same extrusion spray as the mosquito control must be sprayed (with a thin tube, in order to avoid scattering,) sprayed into the keyhole. If there is no oil temporarily, you can use soap or pencil lead crumbs instead, but the effect is slightly less.

3. Do not twist the key to open the door: if the door leaf sinks due to loose loosening, the loose loose leaf should be fixed tightly with screws. If the door frame is deformed or its reasons are irreversible, you can start from the door frame and expand the deadbolt accordingly, so that the door lock can be restored to normal and smooth.

The above is an introduction to what to do if the lock at home can't be opened, I hope it will be useful to you!

The main function of the door lock is anti-theft, and the corresponding key must be used to open, but in the process of use, it is inevitable that there will be failures, even if it is the corresponding key, it may not be possible to open the door lock, pay attention not to force it to open, so as not to break the key in the door lock, and the whole lock will be scrapped. So, what should I do if the door lock can't be opened? What are the tips for choosing a door lock?

Let's take a brief look at it together.

1. What should I do if the door lock cannot be opened?

You can first drop two drops of lubricating oil on the lock hole, and then gently twist the key to see if it can be opened, if it still can't be opened, you can open the direction of the door, push or pull hard, and then try it with the key, if you still can't open, it is recommended to find a professional lock company to deal with it to avoid damage to the lock cylinder.

Second, what are the skills for buying door locks?

1. According to Qeeka Home experts, whether you choose brand-name locks or ordinary locks, you must meet the implementation standards stipulated by the state.

2. The touch of the door lock is also very important, some better door locks are heavier, because the production materials and processes will be better, and the poor quality of the door lock, the feeling is light and fluttering, generally this kind of door lock, ** cheaper, the corresponding service life is shorter.

3. At present, there are many types of door locks on the market, according to different materials, they can be mainly divided into stainless steel locks, alloy locks, copper locks, etc., among which stainless steel and alloy door locks are more cost-effective, and copper locks have good performance, but they will be much higher.

4. It is difficult to see the quality of the door lock at a glance, so for many non-professionals, it is a more secure way to choose brand locks directly, such as pure solid force, Yahong nuclear clean, Yuema, plum blossom, etc., pay attention to choose the surrounding maintenance points.

Summary: The above about what to do if the door lock can't be opened, and what are the tips for buying a door lock are introduced here, I hope it will help you. If you want to know more about related information, please pay attention to Qeeka Home.