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Anonymous users2024-01-24When 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. The volatility of kerosene is strong, don't worry about the greasy in the keyhole in the future, it will affect the performance of the lock again after a long time, it won't take long for the kerosene in the keyhole to volatilize clean, and the door lock will be restored as new. If kerosene does not work, it may be that the internal structure of the lock cylinder is damaged, and you can only ask a lock repair master.
In addition, it should be remembered that only kerosene can be used to lubricate the keyhole, and other oils such as cooking oil, gasoline, diesel, etc. cannot be used! Don't try to be convenient and troublesome, just take a kind of oil and use it, which can only contaminate more dust, which is harmful to the door lock.
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Anonymous users2024-01-23Technical issues, in general, are difficult to say.
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Anonymous users2024-01-22What is your purpose?
You press and hold the cat's eye outside the door, like the left to twist the movement to see if it is screwed, and the twisting movement should be able to be unscrewed.
Most of the time the lock cylinder is broken.
Recently, in the renovation, I am struggling with this problem, and found that the old-fashioned lock without escape function is safer, this escape function is completely useless, but leaves a lot of trouble, just like the automatic glass sliding door power off automatic opening (I have a friend's company, after installing this door for a few months, I found that the building often has power outages in the middle of the night, and as soon as the power goes out, the doors of several companies on the floor will automatically open ......I don't know which stupid design of this function). >>>More
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