How to choose an indoor door lock?

Tips for picking interior door locks.

1. Pay attention to the door lock material.

The indoor door lock materials on the market are basically divided into stainless steel, copper, and zinc alloy Stainless steel has high strength, strong corrosion resistance, and does not change color, which is the best lock material; Copper is relatively versatile, with superior mechanical properties and high price; High-quality zinc alloy is strong, wear-resistant, corrosion-resistant, and easy to form, and is mostly used for mid-range locks

2. Check the surface treatment quality of the indoor door lock.

At present, the surface treatment of indoor door locks is roughly divided into three types: electroplating, spraying and coloring, forming a dense protective film on the surface of the product through surface treatment, which plays the role of anti-corrosion and anti-rust, making the product more beautiful and durable It is also a standard for measuring product quality

3. Check the implementation standards of indoor door locks.

Foreign countries have very strict standards for hardware locks, so the quality of imported products is relatively high At present, the Ministry of Light Industry has learned from some foreign standards to revise the original implementation of GB into the current higher requirements of QB, brand manufacturers have been implementing QB standards, small manufacturers are still implementing the original GB standards, in the selection of the implementation of the product standards must be clear

4. You can feel the quality of the door lock.

Generally speaking, the heavier the lock, the heavier the lock cylinder, the thicker the material used, the more wear-resistant, and the quality is relatively high On the contrary, the material is thin and easy to damage The lock body can not be exposed, and the tip is easy to hurt, especially the end of the lock handle, the lock tongue and the four corners of the lock body; The locks with good locks are flexible to open, have high sensitivity and long service life

5. Check the sensitivity of the lock cylinder spring.

You can open the lock cylinder repeatedly to see the sensitivity of the lock cylinder spring

6. Choose a regular door lock manufacturer.

It is best to choose a regular lock manufacturer for the purchase of lock products, to ensure the quality of its locks at the same time, but also to ensure that it has good after-sales service, even if there is a problem, you can contact the manufacturer at any time for door-to-door processing

First of all, it is necessary to look at the material of the lock, from good to bad in order of copper, stainless steel, zinc alloy, aluminum, iron, etc., copper locks are the best, it is recommended to buy stainless steel to buy 304 materials, and to buy aluminum, you need to buy space aluminum. Don't buy an iron lock, because the surface plating layer will rust if it falls off, and the lock will be useless in less than a month.

The second is to look at the security, the most important performance is in the lock cylinder, the key and the lock body, the lock cylinder with less bullet eyes is easy to be opened, a skilled locksmith or thief, with a simple tool can be opened in a few seconds, then we live in it, security and privacy are not guaranteed, how dangerous At present, most of the domestic manufacturers produce such low-end products. Whether the mutual opening rate of the lock cylinder is qualified or not refers to the percentage of the number of times the lock is opened and the number of trial openings. The national industry standard is: If the lock cylinder has a high rate of mutual opening, then hundreds of households in large communities will install door locks in a unified manner, and the keys between neighbors may open each other, and it is very convenient to visit the door, but the safety factor is greatly reduced.

We can distinguish from the tooth flower of the key, the more tooth flowers, the better, less than 4 tooth flower lock cylinder must not be bought, the lock body to buy more insurance, double tongue or polylingual kind, buy a single tongue to buy explosive, so that the thief is difficult to open, not to say that it is a thief, just say that we, if it is the kind of single tongue, you can use ID card, bank card to open, because it has only one oblique tongue, no insurance, but the explosive single oblique tongue security performance is much higher.

Third, the smooth and beautiful appearance of the door lock is related to the face of the owner, can not be ignored, you can pay attention to the following points when purchasing: 1Whether the surface of the lock body is smooth and clean, and whether there are defects that affect the appearance.

2.Whether the key is smooth and clean. 3.

The key can be inserted into the cylinder hole to open the door lock to see if it is smooth and flexible. Whether the force is light or not, and whether the sound is crisp and pleasant. Fourth, it is necessary to look at the rigidity of the lock, and the transverse static tensile force of the handle is an important indicator of the firmness of the lock.

A quality lock. Its handle to ensure that the switch is millions of times and still straight and not sagging This is something that many manufacturers can't do, and often see the switch tens of thousands of times when hanging down, but you want to inspect it is also a personal work! !

Hello! First of all, it is necessary to look at the material of the lock, from good to bad in order of copper, stainless steel, zinc alloy, aluminum, iron, etc., copper locks are the best, it is recommended to buy stainless steel to buy 304 materials, and to buy aluminum, you need to buy space aluminum. Don't buy an iron lock, because the surface plating layer will rust if it falls off, and the lock will be useless in less than a month.

The second is to look at the security, the most important performance is in the lock cylinder, the key and the lock body, the lock cylinder with less bullet eyes is easy to be opened, a skilled locksmith or thief, with a simple tool can be opened in a few seconds, then we live in it, security and privacy are not guaranteed, how dangerous At present, most of the domestic manufacturers produce such low-end products. Whether the mutual opening rate of the lock cylinder is qualified or not refers to the percentage of the number of times the lock is opened and the number of trial openings. The national industry standard is: If the lock cylinder has a high rate of mutual opening, then hundreds of households in large communities will install door locks in a unified manner, and the keys between neighbors may open each other, and it is very convenient to visit the door, but the safety factor is greatly reduced.

We can distinguish from the tooth flower of the key, the more tooth flowers, the better, less than 4 tooth flower lock cylinder must not be bought, the lock body to buy more insurance, double tongue or polylingual kind, buy a single tongue to buy explosive, so that the thief is difficult to open, not to say that it is a thief, just say that we, if it is the kind of single tongue, you can use ID card, bank card to open, because it has only one oblique tongue, no insurance, but the explosive single oblique tongue security performance is much higher.

Third, the smooth and beautiful appearance of the door lock is related to the face of the owner, can not be ignored, you can pay attention to the following points when purchasing: 1Whether the surface of the lock body is smooth and clean, and whether there are defects that affect the appearance.

2.Whether the key is smooth and clean. 3.

The key can be inserted into the cylinder hole to open the door lock to see if it is smooth and flexible. Whether the force is light or not, and whether the sound is crisp and pleasant. Fourth, it is necessary to look at the rigidity of the lock, and the transverse static tensile force of the handle is an important indicator of the firmness of the lock.

A quality lock. Its handle to ensure that the switch is millions of times and still straight and not sagging This is something that many manufacturers can't do, and often see the switch tens of thousands of times when hanging down, but you want to inspect it is also a personal work! !

Thank you for adopting.

1. Check the implementation standards of locks, locks are implemented standards, some foreign locks are implemented QB standards, and the quality of locks is also higher, so imported locks are generally more expensive. Now some brands of locks in China have been implementing the QB standard, and only some small manufacturers are still implementing the original GB standard, so you must see the implementation standard of the lock when you buy.

2. In addition to observation, we can also feel the quality of the lock. Generally speaking, the heavier the lock, the thicker the material used on the surface, the more resistant to wear and tear, and the higher the quality will be. On the contrary, the lighter the lock, the weaker the material, the lower the quality, and easy to damage.

3. Pay attention to the lock material, and you must pay attention to the lock material when buying an indoor door lock. Earlier we talked about stainless steel locksYes, in addition to stainless steel locks, copper locks and zinc alloy locks are also a good choice, copper locks have superior mechanical properties, but the price is also relatively high; The zinc alloy lock is strong and wear-resistant, and has strong corrosion resistance.

4. Observe the treatment quality of the surface of the lock, and observe the treatment quality of the surface of the lock is also the key to measuring a good lock. At present, there are three main types of surface treatment of locks on the market, namely coloring, painting and electroplating, which are all in order to add a dense protective film on the surface of the lock, in addition to the role of anti-corrosion and anti-rust, but also to make the lock more beautiful. These three treatment methods are undoubtedly electroplating, the plating layer is smooth and uniform, the color is bright, there are no bubbles, and the anti-corrosion and anti-rust ability is first-class.