The lock culture of locks, the five uses of locks

The structure of the lock is as follows:

The basic structure of the lock includes the lock cylinder, the marble, and the deadbolt. There is a row of equal warp holes between the lock cylinder and the lock body, each of which contains two bullets, and a spring is added behind each bullet in the upper row.

The earliest prototype of the lock can be traced back to BC, it is rumored that China has found wooden locks in the ruins of Yangshao culture, and the earliest locks in the West are Egyptian locks, which belong to a kind of marble lock. Although cylindrical locks are now the most common, bump locks were more commonly used in medieval Europe, and simple padlocks made of this construction are now commonly used.

Pay attention to the use of door locks:

1. In the process of opening and closing the door in the daily use of the door lock, it is best to hold the handle and screw the deadbolt into the lock body, make sure that the door is closed and then let go, do not hit the door hard, otherwise it will reduce the service life of the lock.

2. After using for a period of time, the lock will not be unlocked smoothly, you can use the special lubricating oil equipped with it to drip into the lock cylinder, repeat the opening several times, and never drop ordinary lubricating oil or oil into the lock core.

3. Do not use a damp cloth to wipe the lock body and handle, some metal locks will rust, alloy locks will grind off the plating, and the aesthetics will be greatly reduced.

4. It is very important to choose a door lock, and the installation is even more important, so be sure to install the door lock correctly, not too casually.

1. Entrance door lock: also known as anti-theft lock. The entrance door is the door of every home, and it is the watershed outside the home.

It must have a special function, that is, it can play the role of insurance and safety precautions. The entrance is generally composed of two doors: an iron door and a main door (usually a wooden door). For the iron door, it should be locked on both sides, commonly known as: double-headed lock.

Multi-safety door locks and mortise steel door locks are commonly used. When choosing, it should be noted that the distance between the two doors should not be less than 80 mm (8 cm). Otherwise, the distance between the two doors (due to the handle of the lock) is not long enough to close at the same time and do not play a role in preventing theft.

The main door wooden door is generally installed with a large handle lock, which can play an aesthetic role.

2. Door lock in the room: generally refers to the bedroom lock. There is a safety function in the room, and the handle lock or ball lock with the same function can be opened with a key outside the room.

3. Bathroom door lock: it is characterized by locking the door inside, with an emergency opening device outside, and a red and green display, or a small handle lock with "manned" and "unmanned" display or a ball lock with the same function.

4. Kitchen and passage lock: It only plays the role of door handle and windproof, and has no insurance function. It is also suitable for storage rooms and children's rooms.

5. When the bride gets married, she uses the "zodiac" on the dowry box.

Lock; Folk use "Fulu Suxi" when making longevity.

Lock; Celebrate your child's birthday with a longevity lock.

Keep the house locked, spend money locks, and so on.

Smash walnuts, lock doors, be self-defense, use toys for children, and merchants use them to sell for money.

The earliest locks were simple mechanisms set up by the owner to prevent others from opening them, and the simplest lock applied to the door was the latch. In ancient China, there were stone locks, without keys, and were bound by ropes or chains. During the Shang and Zhou dynasties, the private ownership of the means of production was further developed, the gap between the rich and the poor was further aggravated, and the social contradictions were very prominent.

With the rapid development of science and technology, mechanical locks have also made great progress. Modern mechanical locks have a history of more than 100 years, and the lock cylinder is filled with marbles of different lengths, which should be opened with a key with corresponding toothed shapes. Later, it has developed into combination locks, magnetic locks, electronic locks, laser locks, voice-controlled locks and so on.

Haven't you already said it, you can say 500 kinds of it, think about it with your brain.

I really can't figure out how to ask such a simple question to others.

The principle of the lock: the key is the marble in the lock cylinder, it has long and short, there is a row of small holes on the lock cylinder, each small hole is equipped with a marble, after the key is put into the lock cylinder, the amount of marble exposed in each hole is just the same as the appearance of the lock cylinder, not high or low, at this time, the lock cylinder is loaded into the lock, and then the corresponding hole is loaded with a marble and a small spring respectively, seal the hole, and the lock becomes. If you change a key, the depth of the mouth on the key is different, and the height of the marble on the lock cylinder is different just now, so the lock cylinder is stuck by the marble and cannot turn, which plays the role of insurance.

The lock can lock the gentleman but not the villain.

Line multiplexing technology.

The intelligent monitor and the electronic lock are placed in different places, and the intelligent monitor supplies the power required by the electronic lock and receives the alarm information and status information sent by it. If the communication line and the power supply line are separated, it is inevitable to increase the number of cable cores, and the potential safety hazards will increase. In this paper, line multiplexing technology is used to realize the power supply and information transmission with only one two-core cable.

At the transmitting end, the electronic lock boosts the modulated data signal through the pulse transformer T and sends it out; At the receiving end, the pulse transformer T steps down the received data signal and sends it to the demodulator to reduce the loss of the carrier signal during transmission. In order to reduce the mutual interference between communication and power supply, the selection of choke l and coupling capacitor c should be comprehensively considered.

Set the carrier frequency FO 400kHz, in order to ensure that most of the signal energy is transmitted to the receiving end, take L.

Current monitoring technology.

The basic principle and composition of electronic locks.

The composition block diagram of the electronic lock, which is also based on the 51 series single-chip microcomputer (AT89051) as the core, with the corresponding hardware circuit, completes the password setting, storage, identification and display, drives the electromagnetic actuator and detects its driving current value, receives the alarm signal sent by the sensor, sends data and other functions.

The microcontroller receives the typed ** and compares it with the password stored in the EEPROM, and if the password is correct, it drives the electromagnetic actuator to unlock the lock; If the password is incorrect, the operator is allowed to re-enter the password up to three times; If it is incorrect three times, the single-chip microcomputer will alarm the intelligent monitor through the communication line. The single-chip microcomputer sends each unlocking operation and the driving current value of the electromagnetic actuator at this time to the intelligent monitor as status information, and at the same time sends the alarm information received from the sensor interface to the intelligent monitor as the basis for intelligent analysis.

Lock and unlock is a pair of contradictions, locks since the invention, there are many types, and there are still more advanced electronic locks, fingerprint locks were invented, to introduce you to the most common basic type of bullet lock:

Let's start with a few nouns:

1.Cylinder: A cylindrical cylinder made of copper, which can be locked or opened when turned. The lock cylinder is divided into an inner lock cylinder and an outer lock cylinder, and the inner lock cylinder is where you insert the key.

2.Marbles: Copper marbles are divided into inner marbles and outer marbles, cylindrical, of different lengths, and are installed in the round holes of the inner and outer lock cylinders. A lock generally has 3-5 groups of ammunition fluids.

3.Spring: Fitted in a round hole in the outer cylinder. Resist the marbles.

4.Deadbolt: The part that expands and contracts when unlocking. The cylindrical inner cylinder drives the deadbolt when it turns. The padlock is the "nose" that drives the lock.

5.Key: Needless to say, there are "serrations" of different heights corresponding to different lengths of marbles.

The structure and principle of the mechanical marble lock is actually very simple, and it should be said here that almost all the marble locks, such as the word lock, the cross lock, the side (column) bolt type gold dot atomic lock, the idling type (crescent) key horse lock, etc.) lock cylinder, are "top of the bullet type to open the noise" (abbreviation: the top of the open) and there is a "straight cylinder space" (or a little curved cylinder space) ....

Upper top opening method: the unlocker uses a key or special tool to push all the marbles into the top, with the help of torque, with the help of the step between the inner and outer lock cylinder marble holes, under the effect of the spring force, the inner marble falls, and the outer marble is blocked outside the inner lock cylinder, so as to open the lock. For the high-end anti-theft bullet locks on the market, although the structure is not the same, the technical opening methods and tools are also different, but because they are all "top opening", the fundamental truth is the same.

Why can a key only open one lock?

Cylindrical cylinder made of brass that can be locked or opened when turned. I think what you want to know is how the cylinder corresponds to different keys. Insert the key into the lock cylinder, and the "teeth" of the key with different heights correspond to copper pins of different internal lengths.

They are just long enough to make the other end of the inner pins flush with the inner lock cylinder opening, which means that inserting another key will cause some of the pins to be exposed or concave due to the different shape of the "teeth"! As long as one is exposed or concave, the inner lock cylinder can be stuck and cannot be rotated. You can't pick the lock.

Different lengths and combinations of marbles correspond to different keys. i.e. one key can only open one lock.

Since the lock is mass-manufactured, different bullets and combinations are limited, so the mass-produced lock has a repeat probability, that is, sometimes, it can be touched, and one key opens 2 locks. The magnitude of this probability depends on the number of marbles and the number of combinations.

Knowing the above principle, when buying a marble lock (anti-theft marble lock), you should first observe the keyhole to prevent counterfeit and shoddy products from missing marbles, you can use a fine needle to observe or twitch the key to listen to the sound (generally ordinary marble locks are 4 to 5 groups of marbles), especially to see the tooth shape of the key, the front end of the tooth shallow and the rear end of the tooth depth difference is larger, and its performance to prevent low-level theft is better. Please note: there is no absolute way to prevent it!

It's just that the performance is much better.