There are many kinds of locks, such as anti-theft door locks for general families, which are high in safety and relatively cheap in price; In some high-end places and secret institutions, password locks and fingerprint locks will be used, which are high in security and expensive; Glass doors are used in many public places, so glass door locks are widely used.

　　Types of door locks:

　　1. Electronic lock; The electronic password with anti-theft alarm function has greatly improved the technology and performance.

　　2. Padlocks: divided into copper padlocks, iron padlocks and password padlocks.

　　3. Drawer lock: It is divided into all-copper drawer lock, copper drawer lock, aluminum core drawer lock and left and right cabinet door locks.

　　4. Pinball locks: divided into single safety locks, double safety locks, three safety locks and multiple safety locks.

　　5. mortise lock: also known as anti-theft lock, it is divided into steel door mortise lock and wooden door mortise lock.

　　6. Spherical locks: divided into copper spherical locks and three-tube spherical locks, as well as private room locks.

　　7. Color locks: they are divided into glass door locks, latch locks, button locks, switch locks of electrical boxes, chain locks, tongue locks, etc.

　　8. Electric control locks: fingerprint locks, magnetic card locks, IC card locks and password locks.

　　9. Hold the hand lock.

　　10. Special locks: aircraft locks, train locks, car locks and marine locks.

　　11. Other special locks, etc.

　　Lock material:

　　The lock core materials you can see in the market are divided into four categories.

　　1. Copper:

　　Advantages: Copper is one of the best pure metals. Brass is an alloy of copper and zinc, which has strong wear resistance, high strength, high hardness and strong corrosion resistance. Moreover, copper has strong plasticity.

　　Disadvantages: Pure copper is an expensive metal, and the processing technology is complex, so the price of pure copper products is usually higher.

　　2, 304 stainless steel:

　　Advantages: Stainless steel material has good corrosion resistance and wear resistance.

　　Disadvantages: the manufacturing process is complicated.

　　3. Zinc alloy:

　　Advantages: simple processing technology, easy molding and low price.

　　Disadvantages: the wear resistance is slightly poor.

　　4, aluminum and iron:

　　The performance, strength and wear resistance of these two materials are not as good as the above three.

　　Lock cylinder level:

　　There are three levels of lock cores that can be seen in the market.

　　1. Class A: At present, there are mainly one-word keys and cross keys for Class A anti-theft locks on the market. The internal structure of Class A lock core is very simple, which is limited to the change of marble, and the marble grooves are few and shallow. The anti-technical opening time is within 1 minute, and the mutual opening rate is extremely high. The marble structure is single-row marble or cross lock.

　　2. Class B: The key is a flat key with double rows of marble grooves, which is different from Class A lock in that there is a row of crooked and irregular lines on the key face. There are three main types of lock cores: computer double-row lock core, double-row crescent lock core and double-sided blade lock core. Anti-technical opening time is within 5 minutes.

　　3. Class C (Super Class B): The key is in the form of single-sided blade internal milling groove, external milling groove key or double-row+blade. The lock core type is side column lock core, which cannot be technically opened after 270 minutes of testing by the Ministry of Public Security, and the inter-area opening rate is zero. The marble structure is locked by double rows of blades and V-shaped side columns; If the lock core is opened with a strong twist tool, the inside of the lock core will be destroyed and locked by self-explosion, resulting in failure to open it.

　　We have comprehensively explained the classification of locks from the aspects of lock function, lock material and lock anti-theft level, hoping to help friends in need. If you want to know more about smart lock, please pay attention to China Smart Lock Network.