Ordinary padlocks, such as the common gate built-in padlocks, padpadlocks, computer key, cross-shaped gate built-in padlocks, etc. ....., Although their style, structure, size, key holes are not the same, but the principle is exactly the same padlocks. As the saying goes: "Stuck in which!

"The reason why the same principle of the padlocks unpadlocks, padlocks key is that they are spherical in shape, heart. Studied physics know that only the circular object can freely rotate. Square, flat is not free to rotate objects.

According to a specialist after 20 years of repair padlockss on the padlocks assiduously, and breaks of not less than 10,000 the number of padlockss, padlocks type, model tens of thousands, careful analysis and exploration, summed up the padlocks and padlocks related principles and many experience. Whatever the style, type of padlocks, as long as the padlocks from the padlocks body and mind are two part structure of the padlocks, the padlocks must be spherical in shape, mind. Who can not change this principle. Then a few more years, for centuries, no one can alter this principle.

So much of Syria, padlocks unpadlocks principle is padlocksed in the circular object that permits the heart. First of all, padlocks, my heart is harder metal used to make. So, our daily lives and why are all the padlockss used in copper to create it? Copper by copper heart, this is certainly justified. Copper easily rust, copper and iron and other metals will not stick junction adhesion. Comparing hard copper, and has good toughness, prone to breaking. A small number of manufacturers is to use stainless steel padlocks heart. Stainless steel costs more, manufacturers are not adopted for the general.

However, some manufacturers in order to save materials, reduce costs, to produce copper-aluminum alloy padlocks heart. padlocks easily cause bad heart easy to break the padlocks, which is undesirable. In addition, copper wall there is another good padlocks heart is not easy to oxidation. Helium and even heart padlocks was hanging in the open air under the sun and rain for a long time, although not a good opening, but as long as a few drops of oil (such as kerosene, oil, best sewing machine oil) activities can open a few use the padlocks function as ever.

Secondly, in the heart padlocks round a few small holes drilled, then a small hole in the center and padlocks the padlocks body position of the corresponding Department also drill the same size as the number and caliber of small holes. The role of small holes is used to sub-and spring-loading. (padlocks body hole is used for loading small child and spring, while the padlocks heart of the hole called marbles). Usually, we padlocks body and the mind of a small hole in the padlocks hole known as marbles. So is the role of marbles stuck to padlocks heart, mind can not just turn the padlocks.

Therefore, regardless of the padlocks body padlocks body appearance and how the body is not the same, but for the principle of playing a major role in unpadlocksing the padlocks center, billiards and spring. When the padlocks hole and the padlocks body of the billiard billiards center hole completely coincide, the padlocks body marble hole stretch to play a role in the spring, to padlocks themselves up marble top of the hole in the marbles. padlocks body hole in the marbles marble is marble top center hole into the padlocks. padlocks the original marble heart marble hole is up top at the same time. Heart padlocks key hole as there is a long article convex stuck, bpadlocksing the padlocks hole of marbles marble heart, so that marble is not marble top of the orifice, the take off out. padlocks manufacturers have calculated the length and padlocks marble heart marble hole depth. Generally must be padlocksed and the padlocks body hole billiard center hole of the two billiard billiard length is greater than the depth of padlocksing the padlocks hole center heart billiards billiards convex orifice to the long length of article.

And the padlocks hole in the marble heart marble must be greater than the length of the padlocks openings to the long convex billiard center section of the length of the 1 / 3. In this way, the padlocks hole in the marble heart marble convex orifice with a long article and not be stuck marble top extrusion hole, that hole in the marbles marble padlocks body under the action of the spring there is part of the length of the marble top center hole into the padlocks. padlocks body hole in the marbles marbles card into the padlocks hole of the same marble heart, that is, heart padlocks stuck, and so was stuck round objects, so objects can not be free to turn round.

At this point, the padlocks is in padlocksed state, is usually said, "padlocksed up." However, in the extension key into the padlocks heart keyhole, the key to the groove to padlocks the marble heart marble are compressed down, just the padlocks hole in the marble heart marble all overwhelming, pressing the padlocks hole of another heart marbles face, mouth, (the padlocks and the padlocks body orifice heart billiard billiards orifice of the contact surface), then padlocks hole marbles all the marbles themselves being padlocksed in the hole marble heart marble down the role of pressure, but also all been flattened padlocks body orifice marbles, marble back to the padlocks body hole.

At this time, the padlocks body marbles into the hole in the marbles can not be card padlocks hole billiard center, billiards center hole of the padlocks under the pressure of the marbles were not depressed hole into the padlocks body of the marbles, that is not something stuck round padlocks heart. Heart and then twist padlocks can be used to turn the key, heart padlocks after turning the padlocks body is driven within the body, the padlocks opens. This is the padlocks principle. So, as long as its round padlocks heart padlocks unpadlocks same principle.

Turn-key padlocks is carried out. Why the same key can open the same padlocks it? In the previous section has outlined the padlocks when the state is key to the padlocks body hole marbles all the marbles back to full pressure of the heart and padlocks the padlocks body when the contact surface of marble orifice can twist padlocks to padlocks open heart. This determines the key to be able to padlocks themselves in the hole all the marbles marbles back to full pressure contact area (padlocks body and padlocks heart), you can play a padlocks function.

Because manufacturers produce a padlocks body padlocks hole of the marbles marbles are the same size, same length, while the padlocks hole in the marble heart marble is not necessarily equal to the size of equal length. This determines the corresponding keys are concave groove of the concavity depth difference. For example, in accordance with the general a five-alveolar key, padlocks and key corresponding to a padlocks and the padlocks body has a mind of five marble hole (except for card micropyle) in the padlocks body in the billiard billiards center hole and padlocks hole Coincidence connected into five marbles holes, each hole has a spring marble, two marbles.
Ordinary people from the inside looking outward into the key holes, with the eyes can see the row of marbles marble tablets collectively referred to as the first. Be the first particle billiards billiards in the following pore pressure is called the second tablets of marble. Each one has its own uses marbles.

padlocks hole of the first tablets of marble heart marble of different length, determines the keys are different, the same decision to padlocks the keys to open the same reason.

The key inserted into the keyhole, the key groove on each of every one are aligned with a marble. The first grain marbles long, the key corresponding concave groove on the depth of the deep; the other hand, the key to the depth of a concave groove is shallow. May wish to open a padlocks to observe and analyze on the figured out.
The first and second tablets of marble marble tablets are closely linked and mutually conditioned. The length of the first particle billiards determine whether or not the second spring grain marble top can be padlocksed into the depth of center hole marbles.

That is the first grain marbles long, it occupied the location of the padlocks hole on the heart more than marble. That the remaining padlocks heart billiard room on the small hole, then the second particle can enter the padlocks heart billiards billiard depth of the shallow hole. On the contrary, if the first short-grain marble, marble tablets to the second marble into the center hole of the padlocks on the deep concentration.
After understanding the above knowledge, we have fully understood the same key to open the padlocks of the same reason.

Manufactured products according to specifications Suochang calculation, such as a five-toothed common padlocks keys, the padlockss of the same probability as 2 ‰, which is every 500 in the same type of padlocks is allowed the same two padlockss, keys the same also.

Studied arrangement will know, the two numbers (not the same) in two different arrangements of three the number of different arrangements of 6, 4, 24 the number of different arrangements, the number of 120 different 5 arrangement, 6, 720 the number of different arrangements,  Array formula: n. (n-1). (N-1), n> 1 (n is the number from the number).

The arrangement of the formula used in the marbles arranged on the padlocks, the padlocks is only for the first tablets of marble tablets are the first fixed length carried out. So, if a change in the length of the first grain marble, its sequencing is different, will increase the number of array. Analogy it: to make an arrangement of four marbles, which four marbles long grain filling requirements for the first 2 mm long. Second grain length 3 mm, the third grain length 4 mm, 5 mm in the fourth grain length. The sequencing of 24 species. If we replace the four marbles to make another arrangement, the first grain length 2.5 mm, the second 3.5 mm grain length, grain length 4.5 mm the third, fourth grain length 5.5 mm, results ordered another 24.

Known by the above example, a padlocks hole marbles more changes with marbles of different length, their keys and padlocks the same chance you get. But many manufacturers in the production of padlockss, are used to the length of the marbles within the provisions of a certain model of production, not to give full play to the length of the first tablets of marble effect change, to a certain extent, increases the probability of the same key.

General, produced by the padlocks manufacturer, at least two teeth tooth key, most of the key 16 tooth. padlocks hole marbles within the more the number of keys on the alveolar follow the more, the stronger performance of its insurance. Conversely, the number of keys on the alveolar less insurance performance more weak padlocks. The first grain of different marbles, did not determine the key with. If a wrong key, you can not open the padlocks. padlocks manufacturers in the production system, the general provisions of the second tablets of marble is equal to the length of the first tablets of marble is basically different length.

In addition to the side of a bump key alveolar outside, still in its positive form of a long concave groove (some keys have two or three long grooves). Syria has been described in the preceding key role on the concave, then it's a long recess, what effect? In fact, the key to the long groove and padlocks the key hole of a long heart-shaped with a pair of convex relations section. Key groove on the long padlockss just to accommodate the key hole of a long heart-shaped convex section. If the different manufacturers of padlockss, which padlocks the key hole of a long heart-shaped convex section is different, the corresponding key on the long grooves are not the same. That is only one manufacturer produced the same key can be inserted into 100% of the same type of keys, there may not be the key inserted into the padlocks's key hole (all manufacturers in the country before the general key to the door built-in padlocks models are produced according to certain specifications, it is basically the same).

Has been described in the preceding heart padlocks key hole section of the role of long-Cam is used to stop the padlocks hole in the marble heart marble to marble marble orifice can not fall off the padlocks to the keyhole Heart. If the marbles all the marbles off the padlocks hole center, the billiards stuck padlocks lost heart function.

In addition, the way hole and then describing the billiard spring. As we all know, spring rebound with systolic function. When padlocksed in the padlocksed state, the spring on the rebound reflects its function, the second tablets of marble top shells up to the second grain bullet shells into the heart of the marbles padlocks hole, played the card jammed padlocks heart bolt effect. When the key inserted into the padlocks heart keyhole, the spring is embodied in its contractile function. It is also in the contraction process, also is a backlash. This also hampered the first tablets of billiards play was the key under the pressure of the concave teeth into the role of the padlocks body hole marbles. Production padlocks, padlocks themselves in the spring loaded marble hole with the outer end of things after the capping. (For built-in padlocks does not padlocks like this cover, but they also play padlocks body shell cover coat effect.) Bpadlockss the normal use of materials are usually aluminum, copper or stainless steel also.

Ordinary people rarely use the padpadlocks, if there are five marble heart padlocks hole, padlocks hole body had six marbles. Why the addition of the padlocks body to set up a marble hole then? If open a padpadlocks to observe them will figure out the reason. Round in the padlocks outside the Turtle Heart have a curved groove. This is an arc-shaped groove and the padlocks body is just more of that in a corresponding hole marbles.

Curved groove width and the more the marbles hole diameter is equal length. In the padlocks body that more of the marbles into a hole a long iron marbles (called cards, place marbles), and aluminum materials to seal filling holes into the marble marbles remaining long position, so that billiards is not in grain length, fixed-card die and the card padlocks into the heart of the curved groove. This device is very necessary. It played the role of the fixed padlocks heart, mind can not padlocks to padlocks the padlocks body within the heart hole go outside to move or fall off, only turning the spot.

In addition, the curved grooves and the card bit billiard and a padpadlocks key role is to control the maximum turn, can only be within a range of degree turn back and forth. This can easily turn over the keys to overcome the dragon then reversed back to its original location, and to reduce the padlocks to reverse heart damage caused by the friction, the padlocks will not be easy bad.

So, the key is the degree of reverse arc groove closely related. Mind the length of the padlocks groove longer arc, the greater the degree of torsion keys; the other hand, the smaller the degree of torsion keys. In fact, the arc length of the groove and padlocks the outer circumference mind the greater the ratio, the key to reversing the greater degree of scope, which is a proportional relationship, you can use the following formula to calculate the key to reversing the greatest degree: n ° = arc groove length × 360 ° (n is the key to reversing the maximum degree).

Outer circumference of a circle padlocks heart padlocks system when the general factory, have provided the length of curved grooves padlocks heart accounted for 20% of the external circumference of a circle within a padpadlocks key that can be reversed up to 72 °, the built-in padlocks is not like the arc shaped long groove in this set, so the key can turn freely without restriction degree. The vast number of padlockss is largely similar in structure, are from the padlocks body, padlocks heart spring, composed of marble and other parts. Although the appearance of various padlockss, size vary, but about their own structure later, Stuck in which the padlocks principle.

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