Nowadays, there are many kinds of locks on the market. As far as door locks are concerned, they are classified into door locks, bedroom locks, passage locks, bathhouse locks, etc. according to their purpose; ball locks, handle locks, mortise locks, and deadlocks are classified according to their shapes. The ball lock and the handle lock have three functions: lock, handle and ball touch. The door handle should be installed separately for dead locks.
①Door lock: it has a safe effect, so it is also called a safe lock or anti-theft lock.
②Aisle lock: the effect of the door handle and the bumping bead, there is no safe function of the layer lock, it is suitable for the door lock of the kitchen, hall, living room, dining room and children’s room.
③ Bathhouse lock: The characteristic is that the copper padlock can be locked inside, and can be opened with a key outside the door, suitable for clean rooms or bathhouses.
④ Bedroom lock: Lock it securely on the inside, and it is necessary to open it with a key on the outside. Use a gun to lock the bedroom and balcony doors.
The materials used for locks mainly include copper, stainless steel, zinc alloy, steel, aluminum or aluminum alloy, etc.
①Copper: It is one of the most widely used lock materials. Its mechanical function is good, corrosion resistance and processing function are good, and the color is beautiful, especially the handle of copper casting and other lock decoration parts, which are flat in appearance, good in density, and free of pores. , Trachoma.
②Stainless steel: After use, the brighter the more it is used. It has good strength, strong corrosion resistance and unchanged color.
③Zinc alloy information: its strength and rust-proof ability are poor, and its strength is that it is easy to make parts with messy pictures, especially pressure casting. The locks with more messy pictures seen in the market are mostly zinc alloy.
④Steel: good strength, low cost, usually with coating, but easy to rust.
⑤Aluminum or aluminum alloy: ordinary aluminum alloy (used in aerospace) is soft and light, with lower material strength, but it is easy to process and shape.
Consumers should choose copper cores, but they should note that some cores are plastic, and only the “copper core” covered with a layer of copper at the core. The appearance of nickel-plated copper and nickel-plated iron is almost the same, but the price is very different. Generally, all copper is with mute, and iron is without mute. Look closely at the fine workmanship of copper and iron with rough workmanship. When the ball-shaped device is not installed properly, such as eccentric core, it is easy to malfunction during use. Now there is a kind of backhand, which can be dead by quietly lifting the handle, which is very convenient, but simply keep the key in the house.
Now, the fastest selling is the handle lock. The spherical lock has expired and is generally not used. Relatively speaking, when rolling trivial tools, the smaller the sound, the better. Turn the handle a little and trivial tongue should follow up. In terms of the key shape, the “pit”-shaped key accessory is more secure than the “tooth”-shaped key accessory. However, if the “pit”-shaped key is lost, it is necessary to go to the original factory. The more square tongues there are, the better the safety. Consumers should pay attention to the following points when choosing accessories.
①The products of enterprises with high reputation, stable quality and good after-sales service should be selected.
②First check whether the markings of the purchased product packaging are complete (including the product’s performance specifications, grades, production company name, address, and production date), whether the packaging is firm, whether the content of the manual matches the product, and beware of exaggeration and inconsistent with reality phenomenon.
③Investigate the appearance and quality of the product, including whether the lock head, lock body, lock tongue, handle and cover plate parts and related accessories are complete, whether the appearance of the electroplated parts and painted parts is bright and uniform, whether there are rust, oxidation marks, and damaged.
④ To check whether the application function of the product is reliable and sensitive, two or more products should be selected for comparison and check, especially when buying a two-way lock product, it is necessary to use all the keys to test the inner and outer locks separately. It is also necessary to check the product’s safe organization status, and suggest that each lock should be tried at least three times.
⑤Select trivial tools according to the application environment, such as dry humidity, door structure, thickness, left-opening or right-opening, inner-opening or outer-opening, etc.
⑥The mutual opening rate is the mutual opening share of the lock and the key. The fewer the locks opened by a key, the stronger the safety and reliability of the lock.