After the anti-theft lock at home is used frequently or for a certain number of years, the lock core will inevitably have problems. When there is a problem with the door lock, it must be replaced in time to avoid delaying our daily life. Then, do you know how much it costs to change the lock core and how to change the lock core for the security door? Don’t worry, Xiaobian will tell you right away.

　　How much is it to change the lock core?

　　The price of changing the lock core depends on the quality of the lock core. Under normal circumstances, it is cheaper to replace the lock core of the security door used by ordinary families, generally around 80-120 yuan. If the lock core with particularly good quality is replaced, the price will be higher than that in 200 yuan.

　　In fact, it is very cheap to buy lock cores online, and it does not require labor to change them yourself. If you want to ask a professional lock-opener to change it for you, the service fee will vary from 50 yuan to 200 yuan, even more expensive than the lock core.

　　How to change the lock core of security door

　　1. How to change the lock and lock core of the security door? If you want to change the lock of the security door, you must change the lock core first, so first of all, you must buy a suitable new lock core. As for how to choose the lock core, you can consult and buy it in the store according to the original lock model.

　　2. Unscrew the two screws at the top and bottom of the hand panel.

　　3. Unscrew the screws on both sides of the lock cylinder sleeve.

　　4. Remove the lock cylinder anti-theft sleeve.

　　5. Remove the old lock cylinder and install the new lock cylinder.

　　6. Adjust the inner and outer handles, align the screw holes with the nuts over there, and rotate the screws after the illumination is accurate; How to change the lock of the security door, insert the screw and tighten it.

　　7. If you change the lock cylinder. After selecting the lock core, unscrew the two screws at the top and bottom of the hand panel. These two screws are mainly used to fix the panel. It can be completed as long as a cross screwdriver is ready, and it is very simple.

　　8、

　　After the screws are screwed, put the screws away, and unscrew the screws on both sides of the lock cylinder. However, be careful not to screw these two screws too tightly during installation, so as to avoid the handle of the security door being too tight to open. Remove the handle first, and then remove the lock cap.

　　9. Put the lock cylinder into the sleeve and remove it, and put it together with the screw. Remember the steps during disassembly, and the return is the same. Everything removed should be put away in a unified way, so don’t lose it.

　　10、

　　Unscrew the screw that fixes the lock core, and remove it to lock core. If you can’t pull out the lock core by hand after removing the screw, knock it off with the left or right lock head of a hammer and try again. Install the lock cylinder anti-theft shell according to the method in step 3, and then install the handle. Before installing the handle, insert the safety bolt now, and then install the upper handle.

　　11、

　　Install the inner and outer handles. It is best to hold the outer handle together, so that the two can meet each other symmetrically, and then proceed to the next step. Adjust the inner and outer handles, make sure they are well coordinated, align the screw holes with the nuts over there, or turn the screws after lighting with a flashlight. Insert the screw vertically. If the nut inside is not aligned when inserting the screw, please shake the screw with your fingers. Generally, friends who have rotated the screw will realize whether the screw is aligned.

　　12、

　　Fix the panel and tighten the screws. Be careful that the screws are not too tight. If the handle is folded, it will not be able to rotate flexibly. Finally, try the effect. Be sure to try again with the door open, so as to avoid being locked and having to start all over again if the door is not repaired.

　　The above is the introduction of Xiaobian about how much to change the lock core and how to change the lock core for the security door. If you want to get more information about locks, please pay attention to China Smart Lock Network.