Lock Hardware Purchase and Routine Maintenance
Lock purchase and routine maintenance
Hardware accounts for about 3%-5% of home-installed expenses, but the proportion is small, but it cannot be ignored. The hardware is divided into ordinary hardware and special hardware according to the function. Ordinary hardware can be divided into locks, hinges, slides, handles, hanging wheels, nails, brackets, door stoppers, clothes hooks, bumps, touch cards, and board pins. The special hardware is divided into bathroom hardware and kitchen accessories according to the setting method. This article only introduces ordinary hardware and special hardware.
1. Features
There are a wide variety of locks on the market today. In terms of door locks, door locks, bedroom locks, channel locks, and bathroom locks are used depending on the purpose; ball-shaped locks, handle locks, mortice locks, and deadlocks are used according to the shape. Ball locks and handle locks have three functions: lock, handle, and touch ball. Stay locked to install door handles.
1 Door Lock: It is also called safety lock or anti-theft lock since it plays a safe role.
2-channel lock: The function of the door handle and the bumper, there is no insurance function, suitable for the kitchen, hall, living room, dining room and children's door locks.
3 bathroom locks: Features are locked inside, can be opened with a key outside the door, suitable for bathroom or bathroom.
4 bedroom lock: lock in the inside, the outside must be opened with a key, suitable for bedroom and balcony doors. Materials used for locks include copper, stainless steel, zinc alloy, steel, aluminum or aluminum alloy.
1 Copper: It is one of the most widely used lock materials. Its mechanical properties are good, corrosion resistance and processing performance are good, and bright color, especially copper forged handles and other lock decorative parts, the surface is flat, high density, no air hole , trachoma.
2 stainless steel: durable, more and more light. Its strength, corrosion resistance, color unchanged.
3 Zinc alloy material: its strength and rust-proof ability are poor, the advantage is that it is easy to make complicated pattern parts, especially pressure casting. Many of the more complicated patterns seen on the market are zinc alloys.
4 Iron and steel: Better strength, lower cost, generally coated, but rusted.
5 Aluminum or aluminum alloy: Common aluminum alloy (except for aerospace) is soft and light, and the material strength is relatively low, but it is easy to process and shape.
2, choose and maintain
Consumers should choose copper cores, but note that some of them are plastic, and only a "copper core" of copper is wrapped around the core. Nickel-plated nickel and iron nickel have almost the same appearance, but the price is very different. Generally, the copper strips are silent, the iron trifles are not muted, and the copper tricycles work fine. The iron triads are rough. When the ball type is installed, such as eccentric core, etc., it is not easily installed, and it is easy to go wrong during use. There is now a backhand scum. If the handle is lifted gently, it will be trivial to die. It is very convenient, but it is easy to fix the key in the house.
Now, the quickest to sell is the handle lock. The ball lock is obsolete and generally not used. Relatively speaking, when turning a paratrooper, the smaller the sound is, the better the handle is, and the vowel tongue should follow. In terms of the shape of the key, the "pit" shaped key is more secure than the "tooth" shaped key, but the "pit" shaped key has to be lost. The greater the number of square-headed tongues, the better the security. Consumers should pay attention to the following points when choosing a device.
1 The products of companies with high reputation, stable quality and good after-sales service should be selected.
2 First, check whether the mark of the purchased product packaging is complete (including the product's implementation standards, grades, manufacturer's name, address, and production date), whether the packaging is firm, and whether the content of the manual is consistent with the product. Be careful and exaggerated. phenomenon.
3 Observe the appearance quality of the product, including whether the lock head, lock body, lock tongue, handle and cover plate components and related accessories are complete, and whether the surface color of the plating parts and paint spray parts is bright and uniform, and whether there are signs of rust or oxidation. damaged.
4 Check whether the product's use function is flexible. Choose two or more products to be checked and compared. In particular, when buying a two-way lock product, you must use all the keys to test the internal and external locks separately. Also check the insurance organization of the product. It is recommended to try each lock at least three times.
5 According to the use of environmental choices, such as dry humidity, door structure, thickness, open the door left or right, open the door or open the door.
6 The mutual opening rate is the proportion of the lock and the key, and the less the key is opened, the stronger the security of the lock. Consumers should try to choose the lock that has a lot of teeth when purchasing. Because the more the number of teeth in the key, the greater the difference, the lower the open rate of locks.
7 The appearance of the lock should be clear, the surface should not be rough, and it should feel comfortable. The lock turns on and rotates flexibly, the locking device should work, and the feel of the lock cannot be invalid, and the security performance is better.
8 The material should be moderate when purchasing, and it should be firm and reliable when handling. Do not use various kinds of locks made of low quality materials and inferior materials.
9 The installation of locks is also a key: installation must be conducted strictly in accordance with the product specification, and the installation center distance, application scope, and lock opening method should be recognized. Particular care must be taken not to install it on a wooden door with high humidity to prevent corrosion of harmful substances.
10 Always keep the lock body clean to prevent foreign matter from entering the cylinder slot of the lock cylinder, resulting in rolling when opening, and even the lock head cannot be opened. When the key is inconvenient to open, please add appropriate amount of kerosene, gasoline, or rust-proof lubricant to the lock, and then insert the key repeatedly to rotate. When the key is not properly used, please contact the seller by telephone and try not to break the key in the lock cylinder.
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The characteristic of the cup head square neck Bolt is that the head is made into a semicircular ball, and a section of square neck is made under the head. A section of square hole shall also be made on the connected part connected with this bolt. When the bolt is inserted into the connected part and the nut is screwed on, the bolt will not rotate because of the square neck. Its head is relatively smooth, and it is not easy to hook other objects.
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Jiangsu Jiajie Special Screw Co., Ltd , https://www.jiajienuts.com