一, according to the type of lock:
1, padlock: copper padlock, iron padlock and password padlock, the main specifications are 15, 20, 25, 30, 40, 50, 60 and 75mm.
2. Bucket lock: it is divided into full copper bucket lock, sleeve copper bucket lock, aluminum core drawer lock and left and right cabinet door locks. The main specifications are 22.5MM and 16mm..
3, billiard door lock: divided into single insurance door lock, double insurance door lock, three insurance door lock and multiple insurance door lock.
4, plug door lock: also known as anti-theft door lock, divided into steel door plug door lock and wood door insert core door lock.
5, ball type door lock: it is divided into copper ball type door lock and three tubular ball type door lock, and also the compartment lock.
6, flower color lock: glass door lock, plug lock, button lock, electrical box switch lock and chain lock, tongue lock and so on.
7, electronic control lock: fingerprint lock, magnetic card lock, IC card lock, password lock.
8, hold the lock.
9, aircraft locks, train locks, car locks, ship locks.
10, prison locks and other special locks.
二, according to the use of lock:
1, enter door lock: also known as anti-theft lock. Entrance door is the gate of every family. It is the watershed outside the family. It must have a special function, that is, it can play the role of insurance and safety precaution. Generally, there are two doors to enter the house: one iron door and one main door (usually wooden door). For iron doors, both sides must be locked, commonly known as double headed locks. It is often used to have multiple safe lock and core steel door lock. When choosing, you should notice that the distance between the two doors should not be less than 80mm (8 cm). Otherwise, the two doors (because of the handle of the lock) are not long enough to close at the same time without burglary. General door wooden doors generally install a large number of hand locks, so that it can play a beautiful role.
2, the door lock in the room: generally refers to the bedroom lock. There is an insurance function in the room. The key is to open the handle lock or the functional ball lock with the key outside the room.
3, bathroom door lock: its feature is that it can lock the door inside, outside with emergency opening device, and have red, green display, or "someone" "nobody" display small hand lock or the same function ball type lock.
4. Kitchen and passageway lock: it only plays the role of door handle and windbreak, and has no insurance function. It also applies to storage rooms and children's rooms.
三. According to the production process:
1, according to the material: A, brass can be made of AC.AB.PB.BN spherical lock, of which AC.AB.BN electroplating closed paint, BP electroplating closed polished. B and stainless steel can be made into SSPS spherical locks, of which SS, sand paper sand and PS cloth wheel are polished. C, copper SB cloth grinding wheel polishing and closing. D, log, beech; the original beech is closed. (production lock material: brass, copper, stainless steel, beech wood, log, marble, iron sheet, inner plate, zinc alloy, aluminum)
2. Production process: raw material shearing - tilting press is punched with various moulds - trimming and cutting edge - sand - polishing - electroplating sealing - assembly - Inspection - packing.
3, assembly process: the parts and installation process of the ball type lock: front ball, lock core, front pass, ball cover and support frame (including flange, slide plate, support frame, decoration sleeve) - front gear cover, switch simply to slide block, spring - plate, post through insurance insert, inner sleeve, rear gear, rear cover to rear ball.
4, face decoration Code: SS - stainless steel sand light, SP - stainless steel polishing, SN - stainless steel cleaning, SBV - copper sand light, PBV - Copper polishing, SB - Brass sand light, PB - Brass polishing, BP - iron plating imitation gold, AC - red ancient, BN - black nickel, NK - iron plating bright nickel.