General lock structures such as ordinary door locks, sl […]
General lock structures such as ordinary door locks, sliding door locks, cross-type door locks, etc., although their style, structure, and size are different, but the principle of unlocking is completely the same. As the saying goes: "Everything is inseparable!" The reason why these locks are unlocked is exactly the same, mainly because their lock centers are round objects. Anyone who has studied physics knows that only round objects can rotate freely. The square and flat shapes are objects that cannot be turned at will. The lock core discusses so much. The unlocking principle of the lock is actually an article on the lock core of this round object. The material of the lock core First, the lock core is made of harder metal. So, why are the locks used by people in daily life made of copper? There are certain reasons for using copper cores made of copper. Copper is not easy to rust, and metals such as copper and iron will not stick together. Copper is relatively hard and has good toughness, not easy to break. There are also a few manufacturers that use stainless steel to make locks. The cost of stainless steel is relatively high, which is not adopted by general manufacturers. However, in order to save materials and reduce costs, some manufacturers use aluminum alloy copper plating to make the lock cylinder. It is undesirable to cause the lock to break easily and the lock core to break easily. In addition, the use of a copper wall lock core also has the advantage that it is not easily oxidized. Even if the lock of the copper lock is hung in the open air and exposed to the sun and rain for a long time, although it is not easy to open, as long as a few drops of lubricating oil (such as kerosene, motor oil, preferably sewing machine oil) can be opened a few times The function of using the lock is restored as before. The structure of the lock core is followed by drilling a few small holes in the circular lock core, and then drilling the same number of small holes with the same caliber at the lock body position corresponding to the small hole of the lock core. The small holes are used to hold billiards and springs. (The small holes in the lock body are used to hold billiards and springs, and the holes in the lock core are called marbles). Usually, we call the small holes in the lock body and lock core the pinholes. Then, the function of the marble is to catch the lock core, so that the lock core cannot rotate casually. Therefore, no matter how the shape of the lock body and the mechanism inside the lock body are different, it is the lock core, the pin and the spring that play the main role for the unlocking principle. Unlocking principle When the bullet hole of the lock body completely coincides with the bullet hole of the lock core, the spring in the bullet hole of the lock body exerts a spring force to push the bullet in the bullet hole of the lock body upward. The pin in the pin hole of the lock body was pushed into the pin hole of the lock core. At the same time, the original bullets in the lock pin hole were pushed upward at the same time. Because a long convex strip is stuck in the key hole of the lock core, the bullet in the bullet hole of the lock core is blocked, so that the bullet is not pushed out of the opening of the bullet hole and is taken out. When the manufacturer produces the lock, the length of the pin and the depth of the pin hole of the lock core are calculated. Generally, the sum of the lengths of the two bullets in the lock body bullet hole and the lock core bullet hole is greater than the depth of the lock core bullet hole plus the length of the lock core bullet hole to the long convex strip. Moreover, the length of the pin in the pin hole of the lock core must be greater than 1/3 of the length from the hole of the pin to the long convex strip. In this way, the pinhole in the pinhole of the lock core has a long convex bar and is not caught by the pinhole. The pintle of the pinhole of the lock body is partially pushed intoChina Steel Trailer Locks Manufacturers the pinhole of the lock pin by the spring. When the pin in the pin hole of the lock body is caught in the pin hole of the lock core, that is, the lock core is stuck, which is equivalent to the round object, so that the round object cannot rotate at will. At this time, the lock is in a locked state, which is usually said to be "locked." However, after reaching the key and entering the key hole of the lock core, the cog groove on the key compresses the pin in the lock core pin downward, which just overwhelms the pin in the pin hole of the lock core and flattens the other pin hole in the lock pin. At the mouth of the face, (the contact surface of the lock core bullet hole and the lock body bullet hole), at this time, all the bullets in the lock body bullet hole are also flattened due to the downward pressure of the bullet in the lock core bullet hole. Lock the bullet hole in the lock body and return to the lock hole of the lock body. At this time, the bullets in the bullet hole of the lock body cannot be caught in the bullet hole of the lock core, nor can the depressed bullets in the bullet hole of the lock core enter the bullet hole of the lock body, that is, there is nothing stuck in the circle Lock heart. Then the key can be twisted to rotate the lock core. After the lock core rotates, the mechanism in the lock body is driven to open the lock. This is the principle of unlocking.