Know more about anti-theft door

The full name of the anti-theft door is "anti-theft security door", which has both anti-theft and security performance. It is the "guard" of everyone's safety, and the first guarantee of entry and exit. The security performance of the anti-theft door is directly related to the safety of family property and personal. At present, anti-theft door products are uneven, and some merchants, such as grocery stores, are operating a variety of anti-theft doors. How should consumers identify materials and buy qualified and secure anti-theft doors?

1. Three points of attention when choosing an anti-theft door

A good anti-theft door can increase the security of the house. How to choose is a crucial thing.

(1) Choose the appropriate external dimensions. Consumers should choose the appropriate anti-theft security door according to the actual requirements of the door opening size, opening direction, color pattern of the living room. Check the appearance, the color of the paint layer on the surface of the door panel is uniform, without scratches or bubbles.

(2) Check the quality of the door. The steel anti-theft door can be said to be the most widely used anti-theft door material on the market and most used by the common people. Most anti-theft doors familiar to the people belong to this series. This type of door is cheap and reasonable, and its sales account for more than 90% of the total market sales.

The anti-vandalism function is the most important function of the anti-theft security door. At the time of purchase, the seller can be required to show the test certificate of the public security department. At the same time, the weight of the door body should be checked, generally it should be more than 40 kg, the thickness of the steel plate of the door frame should be more than 2.0 mm, and the internal structure of the door body can be checked by removing the cat's eye, the doorbell box or the lock handle, etc. Above 1.0 mm, there are several reinforcing steel bars, and it is best to have asbestos and other materials with fire protection, heat insulation and sound insulation functions as fillers in the door. Finally, the lock should be checked to see if a special anti-theft lock qualified by the public security department has been used, and at the same time, a steel plate with a thickness of more than 3.0 mm should be protected at the lock.

(3) From the "cat's eye" material: zinc alloy is more safe than plastic, and copper material is better than zinc alloy. If the premise of meeting the size requirements, cat eyes made of copper are generally preferred.

When buying cat's eyes, pay attention to see whether the clarity of the cat's eyes is clear. Many illegal businesses now use recycled plastics for cat eyeglasses. The clarity is not enough, and they are constantly releasing toxic and harmful gases, which seriously affects people's health. The higher the clarity, the more simple the material, which is usually made with new materials.

2. Installation steps of anti-theft door

(1) The installation of anti-theft door should be in accordance with the type of anti-theft door used, and a suitable installation method should be adopted.

(2) The installation time is selected before the bricklayer is completed. Many people consider that there are many things to be carried before the basic decoration is completed. I am afraid that the anti-theft door will be damaged. The installation of the anti-theft door is generally a process that needs to be replaced and will damage the wall of the door. If it is installed before, the bricklayer, Oilers can perform rest and recovery well. The installed anti-theft door will have a protective film, or you can add a layer of protection yourself, if it is not deliberately bumped, it will not cause damage.

(3) After delivery of the anti-theft door, be sure to open the cardboard box for inspection and confirm that there is no problem before installing. Many users complain a lot on anti-theft doors, mainly due to defects in paint film, some more prominent are the uneven marks on the door frame and door leaf, which may be caused by long-distance transportation, and must be repaired or replaced before installation.

(4) When installing the anti-theft door, if the door hole is not square or the size does not match the anti-theft door, the wall should be chiseled first. If the anti-theft door is installed before the ground is processed, be sure to ask the worker what the height is after the ground is processed, and feed back the data to the door factory, so as not to cause too high ground during installation. The door frame of the anti-theft door should be tightly connected with the wall, and filled with polyurethane (expansion glue) or cement. If the gap is large, it is best to add reinforcement.

(5) The door frame of the anti-theft door can be fixed to the wall with expansion bolts, or iron pieces can be pre-buried at the opening of the wall when the wall is built, and it is welded to the door frame connection during installation. Regardless of the method of connection between the door frame and the wall, there should be no less than 3 anchor points on each side, and they should be firmly connected. When installing the anti-theft door, you should first straighten it and hang it upright, temporarily fix it after the size is appropriate, and make corrections and adjustments, and the connection can be anchored after being correct.

(6) The gap between anchors should be sealed with expansion agent and covered with a special plastic cap. If there is a gap and the wind can enter, if the wind blows and makes a strange noise, it will be terrible. It is required that the gap with the ground plane should not be greater than 5mm.

(7) After the anti-theft door is installed, it is necessary to check the accessories and materials such as keys, invoices and after-sales service sheets, and there must be no shortage of keys. When a good anti-theft door is opened with a key, it should be easy and flexible; when the door is opened 90 degrees, it should also be flexible and free of jamming, abnormal noise, etc.

(8) If the door leaf and door frame are equipped with an anti-theft chain, check whether the installation of the anti-theft chain is firm and whether the handle rotates flexibly and firmly. At present, anti-theft doors are basically provided with keys for decoration, you can give them one, and keep one yourself. After the hard decoration is basically completed, withdraw the decoration key, and then use the formal key to open it once, the decoration key will be invalid. However, for the sake of safety, it is still necessary to test whether it really fails.

3. Daily maintenance of anti-theft door

(1) When the key cannot be fully inserted into the keyhole when opening the door, if it is in winter, first check whether there is ice in the keyhole; if it is in other seasons, check if there are foreign objects in the keyhole.

(2) When you hear the metal friction sound of the switch door, you can try a little lubricant on the hinge of the anti-theft door. If it is invalid, you can find a professional repairman.

(3) When the anti-theft door is closed, the resistance is too large, and a little lubricating oil can also be applied to the movable lock tongue.

(4) When installing the anti-theft door, it is necessary to carefully fill the cement, so that the door frame and the wall body are effectively and tightly combined, so that the door body and the door frame can maintain a reasonable fit, long-term use without worrying about deformation.

(5) If it is difficult to insert the lock cylinder when opening the door, you can apply a little graphite. Or insert the lead with a pencil lead.

(6) In severe cold areas, the problem of "over-wintering" the anti-theft door is also very important, because the temperature difference between indoor and outdoor in the severe cold area is very large. When the cold and hot water flows, it is easy to make the lock core of the anti-theft door get wet, and then freeze. This situation occurs. Before the winter comes, it is necessary to drop two drops of antifreeze engine oil in the lock core, and then use gasoline or diesel to clean in winter. Do not use vegetable oil as a lubricant for the lock cylinder.

For the safety of homes and residences, we must choose the anti-theft door carefully and do its installation and maintenance work carefully, so that we can use it with ease and live in peace.