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Anonymous users2024-01-24There are three reasons: 1. Plug in the key outside and you can't open it inside 2The lock plate has the function of committing theft, that is, if you go out and twist it a little more, the lock plate will ring, if there is a thief entering the house, he can only jump out of the window, and the big thing cannot be moved.
3.There's a problem inside the cylinder! Fill the hole with pencil ash or wash the cylinder with gasoline.
Then you can only tear down the wall of the doorway or use a toothless saw to break the security door.
You go to the store to buy, the lubricating oil used in the sewing machine, only 5 jiao ---1 yuan, drip the key hole and moving parts of the anti-theft door, the effect is very good, you can try. >>>More
If your home security door is a cross lock (the key head is a ten-shelf) or a magnetic lock (the key is a round iron bar. >>>More
The lock needs to be lubricated and maintained frequently, otherwise it will be difficult to open, rust, or even screw the key, or the internal lock block will be stuck and cannot be opened. >>>More
The role of the anti-theft door in the home is really not small, every family is indispensable to install it, but the lock will be difficult to open after a long time. 1.When the key in and out of the lock hole is not smooth, or it is very difficult, go to the small commodity market to sell lighter counter, buy a box of the smallest package of kerosene, the box has a sharp mouth, the tip of the mouth to the lock hole squeeze a few times, kerosene will go down the lock hole, after a few minutes, take the key to unlock, the key can be very smooth in and out. >>>More