With the progress of the times, the lock has developed rapidly. Styles and varieties emerge in an endless stream, so that locks are playing an extremely important role in hardware products and security products industry. Take the commonly used marble structure mechanical lock as an example, we will classify and explain the lock only according to the use occasion.
A, construction lock
Locks used in building buildings refer to locks used in building doors, which can be basically divided into four categories. Rim lock.
A lock mounted on the surface of a door.
It is generally applicable to outside doors of buildings, and to the outer doors or doors of each residence. Its varieties are single tongue lock, double tongue lock (or multi lingual lock) and double button lock (commonly known as tiger lock). The single tongue, double tongue or multi lingual tongue usually move horizontally in movement, while the double button (tiger) lock is vertical in the movement.
The lock structure in the external lock is generally divided into single lock and double lock. The difference between them is mainly:
1. Dan Suotou
The door is opened with a key, and the door is opened with a handle (or knob). The utility model has the advantages of strong confidentiality outside the door, convenient operation inside the door, no need of keys, and is especially suitable for emergency situations such as fire prevention. But the only drawback is that the door can be opened anytime in the door, including thieves.
2, double lock
The door and door are opened with a key, and its secrecy is higher than a single lock. The thief can not be opened without a key after entering. In addition, most also have a defensive function. As long as there is no key to indent the lock tongue, the lock can not be unloaded with a common tool, such as a screwdriver, pliers, and a hammer. But it is regrettable that in emergency operation (such as fire alarm, it is more difficult to escape) without a single lock and easy to make a mistake and lead to a delay. In the double button (tiger) lock, the lock tongue is generally cylindrical because the lock tongue moves vertically, so the lock is extended or indented (or the knob). Therefore, there is a self collision and non self collision function in the lock tongue structure, and the gap between them is:
A and self touch function
A cylinder has a inclined plane on the tongue. As long as the lock and the locking plate are touched, the lock tongue will hook, commonly known as self touch, and the door must be opened with a key at this time. The door is locked or opened with a spin (or a hand) or a key. The safety button is locked, so that the slanting tongue of the lock surface can not be extended, and the door can be freely switched, without the key outside the door, it is impossible to open the door.
B, non - self - collision function
A cylinder does not have a slant on the tongue. When the tongue is indented only, the door closes, and then locks it with a knob or key. When the lock is extended, the door can not be closed. The lock is usually closed without an insurance button. The door needs to be switched by a key. The door is switched on with a knob (or a hand) or a key.
Spherical door lock: the lock is inserted and installed in the door.
It is generally applied to the interior door of a house, with a cylinder spherical and three rod spheres, a cylinder handle and a three pole handle. The cylinder and the three bar are different in the structure of the lock body, and their functions are different. The function of the cylinder lock is to open the key directly. The three bar lock opens or closes the switch with the key, then opens with the handle or handle. Domestic custom uses cylinder type to be many, abroad uses three pole type to be much. It includes door lock, bathroom lock, channel lock, storage room lock, courtyard lock / balcony lock, classroom lock, emergency exit lock, one-way connected lock, two-way connected lock, hotel lock, Hotel President lock, single head fixed lock, double head fixed lock, lock lock and so on.
Plug door lock: the hand clad plate is assembled on the surface of the door stile.
Because of its good security, it is suitable for external doors. (but also according to the actual situation, installed on the inner door) especially suitable for disabled people to use, including: single tongue, monoclinic tongue, double tongue, multi tongue, multi lingual linkage and so on.
The definition of lock tongue linkage: in addition to completing its own functions, the use of connecting rods or other means to carry out other parts of the movement.
Such as: the lock door lock or outer double tongue lock, the lock head opening and closing the tongue, the hand for opening and closing the tongue, but the linkage mechanism can open and close the tongue, and open and close the tongue at the same time, and still keep the hands of the linkage, and the linkage between upper and lower, middle and lower locking (such as multiple locking). Category
Door lock: the lock tongue is usually in the shape of a hook
Generally suitable for push-pull metal doors, gates and wooden doors, including sluice lock, rolling brake lock, rolling shutter lock, aluminum door lock and so on.
B, industrial lock
Suitable for industrial engineering locks, such as electrical switch program locks, machine tool locks, instruments, instrument locks, electrical cabinets, case locks, etc.
C, furniture lock
Locks for furniture, such as drawer locks, window locks, luggage locks, mailbox locks, etc.
D, lock for transportation
It is suitable for locks used in all kinds of vehicles and ships, such as bicycle locks, motorcycle locks, car locks, train locks, ship locks, aircraft locks, etc.
E, special use lock
In special circumstances, locks are used, such as prison locks, torture devices, fire locks, etc.