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Anonymous users2024-01-24It may be that the upper and lower heaven and earth lock the door frame or the main lock body, go to the hardware store to buy a bottle of anti-rust oil (about 15 yuan) to spray the door in each position that needs to be live, if there is a particularly loud noise, let the brand installer adjust it.
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Anonymous users2024-01-23This is a common little annoyance, which is easy to solve, just apply it with a special grease that is food grade safe.
It is not advisable to use lubricating oil or ordinary butter, which is easy to lose or freeze at low temperatures, and will volatilize harmful odors. Vegetable oil quickly rancid, develops odors and loses its lubricating effect.
Haier and other well-known brands use tiger head hotolube or Kruber door and window hinge grease, colorless and transparent, low temperature resistance, durable, food grade grease certified by the US food safety agency NSF, there are 130 grams of small toothpaste tube packaging in the bag, which is very convenient to use. The maintenance interval is four to six months.
Under normal circumstances, the general security door can be opened as long as there is a key inside or outside. >>>More
Hello friends! Outside, only the door is locked with a key, and the anti-lock can only be done at home. However, the current lock cylinders are relatively advanced, and the problem should not be big if you don't lock back.
The hinge of the anti-theft door is normal outside The purchase of anti-theft mainly depends on its anti-theft level, the steel thickness of the door is different from the technical opening time of the lock. Anti-theft grade stamping on hinged side door frames. >>>More
Since it is an anti-theft door, it must not be, and after the anti-theft door is locked outside, you can only use a key to open it; Or some brands of high-end doors are locked on the outside, and you can't open it if you have a key inside, so you can only open it violently or ask the lock company.
The security door is fixed to the wall with expansion screws, and the screws are all on the door frame. If the door can't be opened, use a tool to knock off the wall around the door by no more than 10 cm, and the door will naturally fall.