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Anonymous users2024-01-24Judging from your description, it seems that the design and quality are not up to par, except, of course, if Ling Zun was an athlete in weightlifting, boxing and other strength sports before.
Seriously, though, it doesn't cost much to change a lock, and if you're going to prove a design flaw or a quality issue, you're going to have to do a lot of work.
When buying something now, be sure to keep your eyes open before you buy.
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Anonymous users2024-01-23For the situation you said, the quality and design of this lock is problematic, if the anti-theft door is broken, the door is still open from the outside, it is your father who will get it, if the thief can still let the door be stolen??? Is the security door still an security door???
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Anonymous users2024-01-22You also didn't describe the structure of which is broken, what are you doing with that effort, directly find a lock to change the lock, change the lock to get it, a door lock to protect your rights, whether the normal damage is not yet, you want to identify, or don't delay that effort, the three guarantees law clearly stipulates that there are products with a certificate of conformity (except for fake), indicating that they meet national standards, beyond the warranty period, you have to pay for it.
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Anonymous users2024-01-21How can this be used, it is possible that the handle square pin is not installed.
The size of the lock cylinder of the anti-theft door, if you have a strong hands-on ability, you can remove it and measure it, based on the distance between the middle screw hole and the two keyholes, of course, if you are troublesome, you can simply measure it, as shown in the figure below, you only need to measure L1 + L2. >>>More
It is best to find a regular unit (with 110 certification) to change the lock, and you can do it above B.
Under normal circumstances, the lock cylinder indoor door side can be A B key universal, the outdoor door side B key can not be used after the A key is used, the principle is not much to say afraid of being used by someone with a heart, if it is reversed, there will be two consequences, first of all: the anti-theft effect will definitely be a little different, because there must be a change, but the difference is not big, as long as it is not a particularly simple bullet lock, the impact will not be too large, remember not to throw the A key casually, This mainly refers to some lock cylinders with better quality or better brands to do more responsibly; Another consequence is that there is no anti-theft measures on the side of the indoor door, so if it is installed in reverse, then the anti-theft performance will be greatly reduced, so it is necessary to pay attention to it, and the security of the lock is likely not to be replaced. This kind of is mainly some"Hearted"of businesses to save costs.
There are the following factors that decide:
The mounting holes of the new security door lock must be the same as the installation holes of the old security door lock to be interchangeable. It is necessary to look at the holes that have been opened in the door, and some holes may not be completely matched. Standard holes are easier to replace. >>>More
0631-8866666 As long as it is genuine C-grade or above lock cylinder, it is basically safe.