Q:Their own security door, every time the door is very costly to open the door. Lock the door when the door handle up to mention, very easy. But when the door open, whether it is inserted into the key from the outside open, or from the inside down the door handle, it is difficult to open the door, that a few out from the door that a few columns (Figure) is difficult to retract Inside the door. What is the cause of this? What steps need to be done to make it switchable? More

Should be the problem of the cylinder, another lock cylinder just fine

Q:Which anti-theft door brand cost-effective! The The The The The

I recommend the use of Wang Li, Wang of the security door, put the technology to unlock the time more than 180 minutes, even if it is a professional helium contact berry Du Fusen ask to open, within 180 minutes must not open

Q:What is the filler inside the security door

Anti-theft door filling are: honeycomb paper rock wool polyurethane foam foil. Depending on the level of the security door and the use of different, the filling of different substances.

Q:Home ventilation is not good, would like to install the door on the security door, what kind of screen door is good?

If not installed, then buy a composite anti-theft door, has been installed, you can consider using stainless steel or aluminum to be a screen door

Q:Anti-theft door lock about what it means

Simply say that is open from the outside when the door is used to open which side, or with the handle of the security door, outside the direction of the handle is where the side.

Q:What is the security standard?

The latest standard "anti-theft security door common technical conditions", the anti-theft door security level is divided into: A, B, C, D four levels. Anti-theft level classification level surface material thickness lock points anti-damage open time letters that a class 2mm12 ≥ ≥ 30minJ B class 2mm10 ≥ 15minY C class 1.8mm8 ≥ 10minB Ding 1.5mm6 ≥ 6minD general home security door to C, Ding-based, the higher the level, the higher the anti-theft performance. In addition to the door itself, the door lock is the key to anti-theft, the state will be anti-theft door lock cylinder is divided into three levels: level anti-technical open time anti-destructive opening time interoperability rate standard level A ≥1min≥15min≤0.03% National Standard B Grade ≥5min≥30min≤0.01% National Standard Super B Grade ≥260min≥30min≤0.0004% Enterprise Standard

Q:How to prevent the security door was prying

The world is anti-gentleman is not anti-villain, there is no door is not open

Q:Decoration, when the anti-theft door replacement?

If the door is no problem, then it is recommended to change the cylinder on the line! The The The The The Xing Xin door industry for your satisfaction! The The The The

Q:Anti-theft door of the cross key lock in the lock, and how quickly get out?

Prepare props: word, Phillips screwdriver, pliers 2, sewing needle 2, tweezers 1. The method is as follows: (1) the sewing needle with a fire red bend into a small hook-like, and then gently find the key to the place, found that the activities of the gap, to find a small pillar can be activities, in fact, the lock can lock , That is, a small bronze pillar can not be locked organs, and now with two needle hook off the key, slowly pulled out on the line. Can be used to help tweezers, if not, you can use a screwdriver to remove the position in the house to find the location of the key, with a needle stabbed out, and then took out. (2) the key to break the door in the lock, and first look at the key is not wrong, the correct location should be inserted into the key position. To find a medical tweezers try can not be taken out, if the tweezers could not, then find a bike gate wire in front of a small groove can try to hook out. (3) from the inside to remove the back cover of the lock, with a narrow iron bar or a little bit of wire, from the door inside the poke, you can cut off the key from the keyhole poke out. (4) If the above methods are no way to solve, then only to find a locksmith, and unlock the lockers are uncertain, only for a security door lock.

Q:The sound of the security door is loud

Usually pay more attention to hinges and hinges rust-proof lubrication. Otherwise it will rust and abnormal sound. Hinges lack rust-free lubrication, affecting the appearance, will issue a squeak sound, affect the rest. Meikailong and other well-known hinge brand with tiger hotolube or Krupp's hinge hinge grease, colorless and transparent, good adhesion, good durability. Panther has 130 grams of tube packaging, but also for sliding doors and so on. Grease directly applied to the hinge gap, will slowly penetrate into the hinge inside. The maintenance period is four to six months. Should not use the oil or ordinary butter, easy to lose or low temperature freeze, there will be harmful smell volatilize. Vegetable oil will soon be sour is often known to protect the smell, loss of lubrication.