Locks are a special kind of commodity and have a very important relationship with safety. Therefore, whether it is domestic or foreign, the lock industry has a set of extremely strict quality standards and safety requirements. Nowadays, there are many kinds of hardware locks on the market. In terms of door locks, door locks, channel locks, bathroom locks, etc. are classified according to the purpose, such as ball lock, handle lock, mortise lock, etc. according to the shape. Such multiple forms of classification have both practicality and aesthetics, but no matter what form of recommendation, the following items should be considered first:
1, characteristics
Nowadays, there are many kinds of locks on the market. In terms of door locks, portal locks, bedroom locks, passage locks, bathroom locks, etc. are used according to the purpose; ball-type locks, handle locks, mortise locks, and locks are arranged according to the shape. The ball lock and handle lock have three functions: lock, handle and ball touch. To install a door handle, it is necessary to install a door handle.
1 household door lock: It plays the role of insurance safety, so it is also called insurance lock or anti-theft lock.
2-channel lock: the function of the handle and the bead of the door, no insurance function, suitable for the door lock of the kitchen, the hall, the living room, the dining room and the children.
3 bathroom lock: features can be locked inside, can be opened with a key outside the door, suitable for the bathroom or bathroom.
4 bedroom lock: Secured inside, must be opened with a key, suitable for bedroom and balcony doors.
The materials used for the locks are mainly copper, stainless steel, zinc alloy, steel, aluminum or aluminum alloy.
1Copper: It is one of the most widely used lock materials. It has good mechanical properties, good corrosion resistance and processing properties, and its color is beautiful. Especially for copper forged handles and other locks, the surface is flat, the density is good, and there is no air hole. , sand holes.
2 stainless steel: durable, the more you use the brighter. It has good strength, strong corrosion resistance and constant color.
3 zinc alloy material: its strength and anti-rust ability is poor, the advantage is easy to make complex patterns of parts, especially pressure casting. Most of the locks on the more complex patterns seen in the market are zinc alloys.
4 steel: better strength, lower cost, generally coated, but easy to rust.
5 Aluminum or aluminum alloy: Ordinary aluminum alloy (except for aerospace) is soft and light, and the material strength is lower, but it is easy to process.
2, choose
Consumers should choose the copper core, but it should be noted that some of the cores are plastic, only a layer of copper "copper core" is wrapped in the core. The copper-plated nickel and iron-plated nickel have almost the same appearance, but the price varies greatly. Generally, the copper is silent, the iron is not muted, and the copper is fine and the work is rough. When the ball type is installed, if the eccentric core is not installed, it is easy to cause problems during use. Now there is a kind of backhand, the handle is gently lifted, it can be trivial, very convenient, but it is easy to put the key in the house.
Now, the fastest selling is the lock, the ball lock is out of date, and generally not used. Relatively speaking, when turning the trivial, the smaller the sound, the better, the handle turns a little, the trivial should follow up a little. In terms of the shape of the key, the "pit" key is more secure than the "tooth" key, but the "pit" key must be lost to the original factory. The more the square tongues are, the better the safety. Pay attention to the following points when consumers choose trivial.
1 should choose products with high reputation, stable quality and good after-sales service.
2 First check whether the packaging of the purchased product is complete (including the product's implementation standards, grades, manufacturing company name, address, production date), whether the packaging is firm, the contents of the manual are consistent with the product, and the caution is exaggerated and does not match the facts. phenomenon.
3 Observe the appearance quality of the product, including whether the lock head, the lock body, the lock tongue, the handle and the cover plate parts and related accessories are complete, whether the surface color of the plated parts and the painted parts is bright and uniform, and whether there are signs of rust or oxidation. damaged.
4 Check whether the product use function is reliable and flexible. Two or more products should be selected for comparison check. Especially when purchasing the two-way lock product, all the keys must be used to test the inner and outer locks separately. You should also check the insurance organization of the product. It is recommended to try each lock at least three times.
5 Select the equipment according to the use environment, such as dry humidity, door structure, thickness, left or right door, inner door or outer door.
6 The mutual opening rate is the ratio of the lock to the key. The less the lock is opened by a key, the stronger the safety and reliability of the lock. Consumers should try to pick a lock with a large number of key teeth when purchasing, because the more the number of teeth of the key, the greater the difference, the lower the mutual opening rate of the lock.
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