WO2011044773A1

WO2011044773A1 - Method for improving technically unlocking difficulty and anti-theft lock core structure

Info

Publication number: WO2011044773A1
Application number: PCT/CN2010/072397
Authority: WO
Inventors: 汤斌
Original assignee: Tang Bin
Priority date: 2009-10-13
Filing date: 2010-05-02
Publication date: 2011-04-21
Also published as: CN201546497U

Abstract

A method for improving technically unlocking difficulty and an anti-theft lock core structure are disclosed. The anti-theft lock core structure includes a lock core stator (10), in which a first lock core (11) and a second lock core (21) with parallel axes are provided. A key-way hole (12) and more than two parallel first ball slots (101) communicated with the key-way hole (12) and perpendicular to the axes of the lock core are provided in the first lock core (11). Second ball slots (102) and third ball slots (103) which are numerically equal to the first ball slots (101) are respectively provided in the second lock core (21) and between the first lock core (11) and the second lock core (21), and the third ball slots (103) connect the first ball slots (101) with the second ball slots (102) in a line. More than two first balls are provided in each first ball slot (101). A second ball and a third ball are respectively provided in each second ball slot (102) and each third ball slot (103). Return springs (30) against the first balls, the second ball and the third ball are provided at the side away from the key-way hole (12) of the second lock core (21). A linkage mechanism (20) is provided on the first lock core (11) and the second lock core (21).

Description

Method for improving technical difficulty of unlocking and anti-theft lock core structure

Technical field

The invention relates to a method for designing an anti-theft lock core, and a lock core structure designed by the method, in particular to an anti-theft lock core structure for improving the difficulty of preventing technical unlocking.

Background technique

At present, the mechanical lock cylinder on the market comprises a lock cylinder stator and a lock core rotor. A keyhole is arranged on the lock core rotor, and a plurality of parallel arranged marble slots are arranged between the lock core stator and the lock core rotor. A first marble is arranged in the marble slot section of the lock cylinder rotor, and a second marble is arranged in the marble slot section of the lock core stator, and a return spring is arranged at the rear end of the second marble, and if the lock is unlocked, if inserted The legal key is that the tooth height on the key and the first pin are exactly equal to the distance of the ball slot in the lock cylinder rotor, so that the outer end face of the first pin is just at the interface between the lock cylinder stator and the lock cylinder rotor. When the lock cylinder rotor can rotate in the lock cylinder stator, the lock tongue is rotated to unlock. If an illegal key is inserted, since the tooth height on the key and the first marble are not necessarily equal to the distance of the marble slot in the lock cylinder rotor, such that a part of the first marble is inserted in the lock core stator. In the pin slot section, either a part of the second pin is inserted into the pin slot of the lock core rotor, so that the lock core stator and the lock core rotor are either stuck by the first pin or stuck by the second pin, and the lock is locked. The core rotor cannot rotate relative to the lock cylinder stator and thus cannot be unlocked. However, at present, some people use only two kinds of marbles, and there is only one structural defect of the end face. The correct position of the marble can be located by the force of feedback on the different positions of the marble when the lock cylinder is rotated, so that the hook lock is unlocked. Or technical unlocking by means of a lock lock, etc. The so-called technical unlocking means that the special unlocking tool does not destroy the opening method of not damaging the lock. After the successful opening, the original key can still be used normally.

The double-lock core structure can increase the action point between the marble and the lock cylinder, and improve the difficulty of technical unlocking, such as the "double-layer lock core structure" of the Chinese document CN2399481Y, including the inner lock core, the outer lock core, the linkage block, and the positioning. The marble and the spring are locked by the interlocking block of the inner lock core to lock the safety pin of the outer lock core, and then the inner lock core rotates at a certain angle, the inner lock core linkage block and the outer lock core linkage block contact to drive the outer lock core to rotate The lock is opened, and the lock of the double lock core structure does not really solve the traditional mechanical bullet lock, and cannot prevent the weakness of the technical unlocking.

Summary of the invention

In order to overcome the above disadvantages of the lock cylinder, the present invention provides a method for effectively improving the difficulty of technical unlocking of the anti-theft lock cylinder.

The invention also provides an anti-theft lock core structure manufactured by the method.

The method adopted by the present invention is: Two lock cylinders are arranged in the lock cylinder of the anti-theft lock cylinder, wherein the lock core with the key through hole is called the first lock core, and the other lock core is called the second lock core; the first lock core There are two or more parallel first pin slots communicating with the key through holes, and the second lock core is provided with a second pin slot equal to the number of the first pin slots, in the first lock cylinder and the second lock A third marble slot having the same number as the first marble slot is disposed between the cores, and the third marble slot is connected to the first marble slot and the second marble slot in a straight line, and two or more slots are disposed in each of the first marble slots. The first pinion is provided with a second pin in each second pin slot, and a return spring is further disposed on a side of the anti-theft lock core away from the key through hole, and the return spring sequentially places the pin in each pin slot. Tightly; when the lock is locked, the protruding length of the second pin extending from the second lock cylinder is equal to the tooth height of the legal key, the protruding portion catches the second lock cylinder; After the key through hole is inserted into the legal key, the first lock core and the second lock core are both in a rotatable state. Moving a first cylinder, a first cylinder driven by the active element disposed on the dial is rotated to dial a passive second cylinder member, so as to drive the second rotation of the plug, and the operation of unlocking the bolt.

The technical solution adopted by the invention is:

The first solution is to provide an anti-theft lock core structure, The utility model comprises a lock cylinder stator and a first lock core and a second lock core disposed at a distance between the lock core stator, wherein a key through hole is arranged in the first lock core, wherein: The first lock cylinder is disposed in parallel with the second lock core, and the first lock cylinder is disposed in parallel with two or more first pin slots that communicate with the key through hole and are perpendicular to the lock core axis, and the second lock a second marble slot having the same number as the first marble slot is disposed in the core, and a third marble slot equal to the number of the first marble slots is disposed between the first lock cylinder and the second lock cylinder, and the third marble slot The first marble slot and the second marble slot are connected in a straight line, and two or more first marbles are disposed in each of the first marble slots, and a second marble is disposed in each of the second marble slots, and each third marble a third marble is disposed in the slot, and a return spring is further disposed on a side of the second lock cylinder remote from the key through hole, wherein the return spring axially tightens the first marble, the second marble, and the third marble; The first lock cylinder and the second lock core are provided with a linkage mechanism.

The second solution is to provide an anti-theft lock core structure, The utility model comprises a lock cylinder stator and a first lock core and a second lock core disposed in the lock core stator, wherein a key through hole is arranged in the first lock core, wherein: The first lock cylinder is disposed coaxially with the second lock core, and the first lock core is nested in the second lock core, and two or more of the first lock cores are parallelly connected with the key through hole and a first marble slot perpendicular to the axis of the lock cylinder, wherein the second lock cylinder is provided with a second marble slot equal in number to the first marble slot, and is disposed between the first lock cylinder and the second lock cylinder a third marble slot having the same number of marble slots, wherein the third marble slot is linearly connected to the first marble slot and the second marble slot, and two or more first marbles are disposed in each of the first marble slots. a second marble is disposed in the second marble slot, and a third marble is disposed in each of the third marble slots, and a return spring is further disposed on a side of the second lock cylinder remote from the key through hole, and the return spring The first pin, the second pin and the third pin are tight; the first lock core and the second lock core are provided with a linkage mechanism.

The third solution is to provide an anti-theft lock core structure, The first lock cylinder and the second lock core are disposed in the first lock cylinder, and the first lock core and the second lock are disposed in the first lock core. The core is coaxially disposed, and the first lock cylinder is provided with two or more first marble slots communicating with the key through hole and perpendicular to the lock core axis, and the second lock core is provided with the first a second marble slot having the same number of the marble slots, wherein a third marble slot equal to the number of the first marble slots is disposed between the first lock cylinder and the second lock cylinder, and the third marble slot is linearly connected to the first marble slot And a second marble slot, wherein two or more first marbles are disposed in each of the first marble slots, and a second marble is disposed in each of the second marble slots, and a third marble is disposed in each of the third marble slots. a return spring is further disposed on a side of the second lock cylinder away from the key through hole, the return spring tightening the first pin, the second pin and the third pin; the first lock core and the second A linkage mechanism is arranged on the lock cylinder.

In the above three solutions, the linkage mechanism includes an active dial member disposed on the first lock cylinder and a passive dial member disposed on the second lock cylinder, and the active dial member drives the passive dial member to rotate. a fourth marble slot penetrating through the second marble slot is disposed on a side of the second marble slot away from the third marble slot, and a fourth marble is disposed in the fourth marble slot, and the return spring is located The end of the fourth marble.

The active dial and the passive dial are provided with elastic elements for the elastic element or the contact portion thereof.

The tooth height of the key is equal to an integral multiple of the length of the first marble.

In the present invention, since two lock cylinders are used, two or more parallel first and second marble slots are respectively disposed in the two lock cylinders, and the third marble slot between the two lock cylinders will be the first The marble slot is connected in a straight line with the second marble slot. The first marble slot is provided with two or more first marbles. The first marble cannot be used for the bolting, and the second marble provided in the second cylinder is used for the bolting. Function, when using a special unlocking tool, such as single hook unlocking, only the first marble can be toggled. Since there are more than two first marbles in each marble slot, even if the first lock cylinder can rotate, it may not be able to Rotating the second lock cylinder, by increasing the number of each of the marble slots or the number of the first marbles in each of the first marble slots, the first marble in the first marble slot for rotating the first lock cylinder can be effectively increased. The end face is arranged in a combination of the first lock cylinder and the opposite active arc surface of the lock cylinder stator, thereby having the feature of improving the technical difficulty of unlocking. The use of the first marble and the second marble makes the structure simple, no complicated and precise. Connecting mechanism and thus having For low-cost mass production advantages.

DRAWINGS

1 is a schematic perspective view of an embodiment of the present invention;

Figure 2 is a cross-sectional view taken along line A-A of Figure 1;

Figure 3 is a cross-sectional view showing a three-dimensional structure of a second embodiment of the present invention;

Figure 4 is a perspective view showing a three-dimensional structure of a third embodiment of the present invention;

Figure 5 is a cross-sectional view taken along line B-B of Figure 4;

detailed description

A method for improving the difficulty of unlocking by technical means, wherein two lock cylinders are arranged in the lock core stator, wherein the lock core with the key through hole is called the first lock core, and the other lock core is called the second lock a core; the first lock cylinder is provided with two or more parallel first pin slots communicating with the key through holes, and the second lock core is provided with a second pin slot equal to the number of the first pin slots. A third pin slot equal to the number of the first pin slots is disposed between the first lock cylinder and the second lock cylinder, and the third pin slot is linearly connected to the first pin slot and the second pin slot, in each first pin Two or more first marbles are disposed in the slot, and a second marble is disposed in each of the second marble slots, and a return spring is further disposed on a side of the anti-theft lock core away from the key through hole, and the return spring is sequentially The marbles in each of the marble slots are topped; when the lock is locked, the protruding length of the second marble extending from the second cylinder is equal to the tooth height of the legal key, and the protruding portion will be the second The lock cylinder is stuck; the first lock cylinder and the second lock cylinder are inserted after inserting a legal key from the key through hole In a rotatable state, at this time, the first lock cylinder is rotated, and the active dial member of the first lock cylinder drives the passive dial member disposed on the second lock cylinder to rotate, thereby driving the second lock cylinder to rotate and unlocking the lock tongue . The tooth height of the key can be greater than the length of the first marble. If the inserted key is not a legal key, such as technical unlocking or collision unlocking, even if the first marble in the first marble slot can be pushed, and at the same time, the end surface of a first marble is in the first lock cylinder and the lock cylinder stator. The movable curved surface enables the first lock cylinder to rotate freely, but since the second marble is not in the movable curved surface of the second lock cylinder and the lock cylinder stator, the second lock cylinder is still stuck, when the key is turned, although The active dial on the first lock cylinder applies a force to the passive dial, and the second lock cylinder cannot be rotated, and the lock tongue cannot be unlocked. By increasing the number of the first marble slots or the number of the first marbles in each of the first marble slots, it is effective to increase the position of a first marble in the first marble slot in which the first lock cylinder rotates in the first lock cylinder. The arrangement of the opposite active arc surfaces of the lock cylinder stator has the feature of improving the technical difficulty of unlocking.

There are various embodiments of the anti-theft lock cylinder structure manufactured by the above method.

Example 1:

Referring to FIG. 1 and FIG. 2, FIG. 1 and FIG. 2 disclose an anti-theft lock core structure. The anti-theft lock core structure includes: a lock cylinder stator 10 and a first distance separated by a certain distance disposed in the lock core stator. The lock cylinder 11 and the second lock core 21 are provided with a key through hole 12 in the first lock core, and the first lock core 11 is disposed in parallel with the second lock core 21, and the first lock core is disposed in parallel There are two or more first marble slots 101 communicating with the key through holes and perpendicular to the axis of the lock cylinder, and the second lock cylinders are provided with a second marble slot 102 equal to the number of the first marble slots 101. A third pin groove 103 equal to the number of the first pin slots is disposed between the lock cylinder and the second lock cylinder, and the third pin groove 103 is linearly connected to the first pin slot 101 and the second pin slot 102, respectively. Two first marbles 104 are disposed in the first marble slot, and second marbles 105 are disposed in each of the second marble slots, and a third marble 106 is disposed in each of the third marble slots. A return spring 30 is further disposed on a side away from the key through hole, and the return spring will be the first marble, the second marble, and the third marble Tight; interlocking mechanism 20 provided with the first cylinder and the second cylinder.

The linkage mechanism 20 includes a driving member 15 disposed on the recessed end of the first lock cylinder 11 and a passive dialing member 25 disposed on the concealed end of the second lock cylinder 21. In this embodiment, the active dial member 15 is The dialing member 25 is a lever. When the dial 15 is rotated by a certain angle, the dial 15 is in contact with the lever 25 and applies a force to the lever.

In a preferred embodiment of the present invention, a fourth marble slot 107 extending through the second marble slot is disposed on a side of the second marble slot 102 away from the third marble slot, and the fourth marble slot is disposed in the fourth marble slot. There is a fourth marble 108, one end of the return spring 30 is connected to the tail end of the fourth marble, and the other end is connected to the end of the fourth groove segment. In this embodiment, the second marble slot, the third marble slot and the fourth marble slot are respectively provided with only one second marble, the third marble and the fourth marble, of course, according to the actual situation, in the guarantee In the case where the sum of the lengths of the two marbles, the third marble, and the fourth marble is constant, two or more second marbles, a third marble, and a fourth marble may be disposed by changing the length of each marble.

When the lock is locked, the protruding length of the second pin 105 extending from the second lock cylinder 21 is equal to the tooth height of the legal key, and is also equal to an integral multiple of the length of the first marble, the protruding portion The second lock cylinder 21 is stuck, and the second lock cylinder 21 cannot be rotated; when the legal key is inserted from the key through hole, the teeth on the key push the first marble 104 to slide, so that the end face of a first marble In the movable arc surface of the first lock cylinder 11 and the lock cylinder stator 10, the first lock cylinder is freely rotatable, and at the same time, the third marble 106, the second marble 105 and the fourth marble 108 are successively slid under the pushing of the first marble 104. And the two end faces of the second marble 105 are placed on the movable curved surface of the second lock cylinder 21 and the lock cylinder stator 10, and the second lock cylinder is rotatable. When the key is rotated, the first lock cylinder rotates, and the dial 15 fixed on the first lock cylinder 11 also rotates at the same time. When the dial 15 rotates by a certain angle, it contacts the lever 25 and follows the dial 15 The direction of rotation exerts a force on the lever 25 to drive the second lock cylinder 21 to rotate. As the second lock cylinder 21 rotates, a device such as a dial member is disposed on the second lock cylinder 21 to act on the lock tongue on the lock body and unlock . When the unlocking operation is completed, the first key cylinder 11 of the rotary key is returned to the initial position, and the return spring 30 applies a force to each of the marbles to return the marble to the initial position.

If the inserted key is not a legal key, when the technical unlocking or the collision unlocking is used, even if the first marble 104 in the first marble slot 101 can be pushed, and the end surface of the first marble is at the same time, the first lock cylinder 11 and the lock cylinder are The movable curved surface of the stator 10 allows the first lock cylinder to be freely rotated, but since the second marble is not in the movable curved surface of the second lock cylinder 21 and the lock cylinder stator 10, the second lock cylinder is still stuck. When the key is turned, although the dial 15 on the first lock cylinder 11 exerts a force on the lever 25, the second lock cylinder cannot be rotated, that is, the lock tongue cannot be unlocked.

Example 2:

Referring to FIG. 3, FIG. 3 discloses an anti-theft lock core structure. The anti-theft lock core structure includes: a lock cylinder stator 10 and a first lock cylinder 11 and a second lock core 21 disposed in the lock core stator. A key through hole 12 is disposed in the first lock cylinder, the first lock core 11 is coaxially disposed with the second lock core 21, and the first lock core 11 is nested in the second lock core 21, The first lock cylinder is provided with two or more first pin slots 101 communicating with the key through holes and perpendicular to the axis of the lock core, and the second lock core is provided with a second number equal to the number of the first pin slots. The marble slot 102 is provided with a third marble slot 103 equal to the number of the first marble slots between the first lock cylinder and the second lock cylinder, and the third marble slot is linearly connected to the first marble slot and the second marble slot. There are two or more first marbles 104 in each of the first marble slots, and a second marble 105 in each of the second marble slots, and a third marble 106 is disposed in each of the third marble slots. A side of the second lock cylinder remote from the key through hole is further provided with a return spring 30, which will move the first, second and third bullets Top tight; the first lock cylinder and the second cylinder is provided with interlocking means 20.

In a preferred embodiment of the present invention, a fourth marble slot 107 extending through the second marble slot is further disposed on a side of the second marble slot away from the third marble slot, and the fourth marble slot is disposed in the fourth marble slot. The fourth marble 108 has one end connected to the tail end of the fourth marble and the other end connected to the end of the fourth groove segment. In this embodiment, the second marble slot, the third marble slot and the fourth marble slot are respectively provided with only one second marble, the third marble and the fourth marble, of course, according to the actual situation, in the guarantee In the case where the sum of the lengths of the two marbles, the third marble, and the fourth marble is constant, two or more second marbles, a third marble, and a fourth marble may be disposed by changing the length of each marble.

When the lock is locked, the protruding length of the second pin 105 extending from the second lock cylinder 21 is equal to the tooth height of the legal key, and is also equal to an integral multiple of the length of the first marble, the protruding portion The second lock cylinder 21 is stuck, and the second lock cylinder 21 cannot be rotated; when the legal key is inserted from the key through hole, the teeth on the key push the first marble 104 to slide, so that the end face of a first marble In the movable arc surface of the first lock cylinder 11 and the lock cylinder stator 10, the first lock cylinder is freely rotatable, and the third marble 106, the second marble 105 and the fourth marble 108 are successively slid under the pushing of the first marble. The two end faces of the second marble are placed on the movable curved surface of the second lock cylinder 21 and the lock cylinder stator 10, and the second lock cylinder is rotatable. When the key is rotated, the first lock cylinder rotates, and the dial 15 fixed on the first lock cylinder 11 also rotates at the same time. When the angle is rotated, the dial 15 contacts the lever 25 and follows the dial 15 The rotation exerts a force on the lever 25 to drive the second lock cylinder 21 to rotate. As the second lock cylinder 21 rotates, a device such as a dial member is disposed on the second lock cylinder 21 to act on the lock tongue on the lock body and unlock. When the unlocking operation is completed, the first lock cylinder 11 is rotated back to the initial position, and the return spring 30 applies a force to each of the marbles to return the marbles to the initial position.

Example 3:

Referring to FIG. 4 and FIG. 5, FIG. 4 and FIG. 5 disclose an anti-theft lock core structure including: a lock cylinder stator 10 and a first lock cylinder 11 disposed in the lock cylinder stator 10. And a second lock core 21, a key through hole 12 is disposed in the first lock core 11, the first lock core 11 and the second lock core 21 are coaxially disposed, and the first lock core is parallel Having two or more first marble slots 101 communicating with the key through hole and parallel to the axis of the lock cylinder, wherein the second lock cylinder is provided with a second marble slot 102 equal in number to the first marble slot, at the first A third marble slot 103 is defined between the lock cylinder and the second lock cylinder, and the third marble slot is linearly connected to the first marble slot and the second marble slot, and each of the first marbles Two or more first marbles 104 are disposed in the slot, and a second marble 105 is disposed in each of the second marble slots, and a third marble 106 is disposed in each of the third marble slots, and is away from the key in the second cylinder. One side of the through hole is further provided with a return spring 30, and the return spring tightens the first pin, the second pin and the third pin; the first lock A linkage mechanism 20 is disposed on the core and the second lock cylinder.

The linkage mechanism 20 includes a driving member 15 disposed on the first lock cylinder 11 and a passive dial member 25 disposed on the second lock cylinder 21. In the embodiment, the active dial member 15 is a dial. The passive dial 25 is a lever. When the dial 15 is rotated by a certain angle, it will contact the lever 25 and exert a force on the lever.

When the lock is locked, the protruding length of the second pin 105 extending from the second lock cylinder 21 is equal to the tooth height of the legal key, and is also equal to an integral multiple of the length of the first marble, the protruding portion The second lock cylinder 21 is stuck, and the second lock cylinder 21 cannot be rotated; when the legal key is inserted from the key through hole, the teeth on the key push the first marble 104 to slide, so that the end face of a first marble In the movable arc surface of the first lock cylinder 11 and the lock cylinder stator 10, the first lock cylinder is freely rotatable, and at the same time, the third marble 106, the second marble 105 and the fourth marble 108 are successively slid under the pushing of the first marble. The two end faces of the second marble 105 are placed on the movable curved surface of the second lock cylinder 21 and the lock cylinder stator 10, and the second lock cylinder is rotatable. When the key is turned, the first lock cylinder rotates, and the dial 15 fixed on the first lock cylinder 11 also rotates at the same time. When the dial rotates by a certain angle, the dial 15 contacts the lever 25 and follows the dial. The rotation of 15 applies a force to the lever 25 to drive the second lock cylinder 21 to rotate. As the second lock cylinder 21 rotates, a device such as a dial member is disposed on the second lock cylinder 21 to act on the lock tongue on the lock body. unlock. When the unlocking operation is completed, the first lock cylinder 11 is rotated back to the initial position, and the return spring 30 applies a force to each of the marbles to return the marbles to the initial position.

If the inserted key is not a legal key, when the technical unlocking or the collision unlocking is used, even if the first marble 104 in the first marble slot 101 can be pushed, and at the same time, the end surface of a certain first marble in each slot is at the first lock. The movable arc surface of the core 11 and the lock cylinder stator 10 allows the first lock cylinder to freely rotate, but since the second marble is not in the movable curved surface of the second lock cylinder 21 and the lock cylinder stator 10, the second lock cylinder is still in In the stuck state, when the key is turned, although the dial 15 on the first lock cylinder 11 exerts a force on the lever 25, the second lock cylinder cannot be rotated, that is, the lock tongue cannot be unlocked.

The key through hole 12 in this embodiment is composed of two or more circular holes parallel to the first lock core axis, and the key used in combination with the key through hole of the present embodiment is also similar to the commonly used toothed flat or semi-arc shape. The key is different, which is composed of several elongated racks arranged in parallel, one end of the long rack is fixed on one positioning block, and the other end can be placed in a corresponding key hole, the positioning block It can be square or round.

In the above three embodiments, by increasing the number of the first marble slots or the number of the first marbles in each of the first marble slots, the first marble in each of the marble slots that rotate the first lock cylinder can be effectively improved. The end face is in the arrangement of the first lock cylinder and the lock main stator relative to the active arc surface, thereby having the feature of improving the technical difficulty of unlocking. In the embodiment, the first pin has the same specification, and the first pin length is greater than the width of the key hole, It is ensured that the first marble 104 does not slip out of the keyhole 12.

The fourth slot segment 107 may not be provided at one end of each of the second pin slots according to actual needs. At this time, one end of the return spring 30 is connected to the end of the second pin slot, and the other end is connected to the tail end of the second pin 105. The mechanical properties of this structure are worse than those of the above embodiment, but the structure is simpler.

Example 4:

This embodiment is basically the same as the above embodiments, except that the second marble 105, which has the effect of generating a card, is a long marble, and the other marbles are short marbles of the same size, and the second marble is extended. The length of the second lock cylinder is an integral multiple of the length of the first marble, and the tooth height of the key is equal to the product of the length of the first marble and the multiple, so that only the multiple relationship in each marble slot is remembered, and the user loses the key. At that time, the corresponding key can be assigned without the need for destructive unlocking. Of course, if equipped with an electronic device, it can also be designed as a combination lock.

Example 5:

The embodiment is basically the same as the above embodiments, except that the linkage mechanism 20 on the first lock cylinder 11 and the second lock cylinder 21 is provided with a positive elastic member and a passive dial member with a certain elasticity, or is actively dialed. An elastic member, such as an rubber, a spring or an air cushion, is added to the contact surface of the member and the passive dial member, and the elastic force of the elastic member acts to place the second lock cylinder 21 in the second lock cylinder 21 and the lock when the second lock cylinder 21 is in the stuck state. The force of the second marble of the movable curved surface of the core stator 10 is within a certain tolerance range, and is not violently destroyed or violently unlocked. Of course, a stop member may be disposed on the lock cylinder stator 10. After the first lock cylinder 11 applies a certain elastic force to the second lock core 21 and rotates a certain position, the lock cylinder 11 rotates to the stop position and terminates. Rotating, the force applied to the lock cylinder 11 at this time substantially directly acts on the lock cylinder stator 10 without exerting an additional force on the second marble located on the movable curved surface of the second lock cylinder 21 and the lock cylinder stator 10, Further, the stop member is arranged to be slidable up and down (reset by the return spring) by the second lock cylinder in a direction perpendicular to the rotation direction of the lock cylinder. When the second lock cylinder 21 is stuck, the stop member does not move and prevents the rotation of the first lock cylinder 11, and when the second lock cylinder 21 is not locked (the legal key lock is opened), the second lock cylinder 21 makes The stop member is movable and does not hinder the rotation of the lock cylinder 11 to provide more power unlocking. This design can have a greater range of use while protecting the internal structure of the lock cylinder.

The principle of the invention is: two lock cylinders are arranged in the lock core stator, wherein the lock core with the key through hole is called the first lock core, and the other lock core is called the second lock core; the first lock core There are two or more parallel first pin slots communicating with the key through holes, and the second lock core is provided with a second pin slot equal to the number of the first pin slots, in the first lock cylinder and the second lock A third marble slot having the same number as the first marble slot is disposed between the cores, and the third marble slot is connected to the first marble slot and the second marble slot in a straight line, and two or more slots are disposed in each of the first marble slots. The first pinion is provided with a second pin in each second pin slot, and a return spring is further disposed on a side of the anti-theft lock core away from the key through hole, and the return spring sequentially places the pin in each pin slot. Tightening; when the lock is locked, the protruding length of the second pin extending from the second lock cylinder is equal to the tooth height of the legal key, and the protruding portion catches the second lock core; After the legal key is inserted from the key through hole, the first lock core and the second lock core are both in a rotatable state. The first lock cylinder is rotated, and the active dial member of the first lock cylinder drives the passive dial member disposed on the second lock core to rotate, thereby driving the second lock cylinder to rotate and unlocking the lock tongue. If the inserted key is not a legal key, when the technical unlocking or collision unlocking is used, even if the first marble in the first marble slot can be pushed, and at the same time, the end surface of a certain first marble in each slot is in the first lock cylinder and The movable curved surface of the lock cylinder stator allows the first lock cylinder to rotate freely, but since the second marble is not in the movable curved surface of the second lock cylinder and the lock cylinder stator, the second lock cylinder is still stuck, rotating When the key is used, although the active dial member on the first lock cylinder applies a force to the passive dial member, the second lock cylinder cannot be rotated, that is, the lock tongue action cannot be unlocked, by increasing the number or the number of the first pin slots. The number of the first marbles in the first pin slot can effectively increase the arrangement of a first pin end face that rotates the first lock cylinder in the relative active arc surface of the first lock cylinder and the lock core stator, thereby improving the difficulty of technical unlocking. The characteristics are achieved to prevent technical unlocking or to knock the lock out.

Claims

1. A method for improving the difficulty of technical unlocking, comprising an anti-theft lock cylinder, characterized in that: two lock cylinders are arranged in the lock cylinder of the anti-theft lock cylinder The lock core with the key through hole is called the first lock core, and the other lock core is called the second lock core; the first lock core is provided with two or more parallel communicating with the key through hole. a first marble slot, wherein the second lock cylinder is provided with a second marble slot equal to the number of the first marble slots, and the first lock cylinder and the second lock cylinder are provided with the same number as the first marble slot a third marble slot, wherein the third marble slot is connected to the first marble slot and the second marble slot in a straight line, and two or more first marbles are disposed in each of the first marble slots, and each of the second marble slots is disposed in each of the second marble slots. There is a second marble, and a return spring is further disposed on a side of the anti-theft lock core away from the key through hole, and the return spring sequentially tightens the marbles in each of the marble slots; when the lock is locked, the second marble An extended length extending from the second lock cylinder is equal to a tooth height of the legal key, the protruding portion catching the second lock cylinder; and when the legal key is inserted from the key through hole, the first lock The core and the second lock cylinder are both in a rotatable state. At this time, the first lock cylinder is rotated, and the first lock core is actively driven. The passive dial moving on the second lock cylinder rotates to drive the second lock cylinder to rotate and unlock the lock tongue.

2 . The anti-theft lock core structure comprises a lock core stator and a first lock core and a second lock core disposed at a certain distance in the lock core stator, wherein a key through hole is arranged in the first lock core, Features are: The first lock cylinder is disposed in parallel with the second lock core, and the first lock cylinder is disposed in parallel with two or more first pin slots that communicate with the key through hole and are perpendicular to the lock core axis, and the second lock a second marble slot having the same number as the first marble slot is disposed in the core, and a third marble slot equal to the number of the first marble slots is disposed between the first lock cylinder and the second lock cylinder, and the third marble slot The first marble slot and the second marble slot are connected in a straight line, and two or more first marbles are disposed in each of the first marble slots, and a second marble is disposed in each of the second marble slots, and each third marble a third marble is disposed in the slot, and a return spring is further disposed on a side of the second lock cylinder remote from the key through hole, wherein the return spring axially tightens the first marble, the second marble, and the third marble; The first lock cylinder and the second lock core are provided with a linkage mechanism.

The anti-theft lock cylinder structure according to claim 2, wherein a fourth pin slot that penetrates the second pin groove is further disposed on a side of the second pin groove away from the third pin groove, A fourth marble is disposed in the fourth marble slot, and the return spring is located at a tail end of the fourth marble.

4 . An anti-theft lock core structure, comprising a lock core stator and a first lock core and a second lock core disposed in the lock core stator, wherein a key through hole is disposed in the first lock core, wherein: The first lock cylinder is disposed coaxially with the second lock core, and the first lock core is nested in the second lock core, and two or more of the first lock cores are parallelly connected with the key through hole and a first marble slot perpendicular to the axis of the lock cylinder, wherein the second lock cylinder is provided with a second marble slot equal in number to the first marble slot, and is disposed between the first lock cylinder and the second lock cylinder a third marble slot having the same number of marble slots, wherein the third marble slot is linearly connected to the first marble slot and the second marble slot, and two or more first marbles are disposed in each of the first marble slots. a second marble is disposed in the second marble slot, and a third marble is disposed in each of the third marble slots, and a return spring is further disposed on a side of the second lock cylinder remote from the key through hole, and the return spring The first pin, the second pin and the third pin are tight; the first lock core and the second lock core are provided with a linkage mechanism.

The anti-theft lock cylinder structure according to claim 4, wherein a fourth pin slot that penetrates the second pin groove is further disposed on a side of the second pin groove away from the third pin groove, A fourth marble is disposed in the fourth marble slot, and the return spring is located at a tail end of the fourth marble.

6, an anti-theft lock core structure, The first lock cylinder and the second lock core are disposed in the first lock cylinder, and the first lock core and the second lock are disposed in the first lock core. The core is coaxially disposed, and the first lock cylinder is provided with two or more first pin slots communicating with the key through hole and parallel to the lock core axis, and the second lock core is provided with the first a second marble slot having the same number of the marble slots, wherein a third marble slot equal to the number of the first marble slots is disposed between the first lock cylinder and the second lock cylinder, and the third marble slot is linearly connected to the first marble slot And a second marble slot, wherein two or more first marbles are disposed in each of the first marble slots, and a second marble is disposed in each of the second marble slots, and a third marble is disposed in each of the third marble slots. a return spring is further disposed on a side of the second lock cylinder away from the key through hole, the return spring tightening the first pin, the second pin and the third pin; the first lock core and the second A linkage mechanism is arranged on the lock cylinder.

The anti-theft lock cylinder structure according to claim 6, wherein a fourth pin groove that penetrates the second pin groove is further disposed on a side of the second pin groove away from the third pin groove. A fourth marble is disposed in the fourth marble slot, and the return spring is located at a tail end of the fourth marble.

The anti-theft lock cylinder structure according to claim 2 or 4 or 6, wherein the linkage mechanism comprises an active dial member disposed on the first lock cylinder and a passive dial member disposed on the second lock cylinder The active dial member drives the passive dial member to rotate.

9. The anti-theft lock cylinder structure according to claim 8, wherein the active dial member and the passive dial member are elastic members or contact portions thereof are provided with elastic members.

10. The anti-theft lock cylinder structure according to claim 2 or 4 or 6, wherein the key height of the key is equal to an integral multiple of the length of the first marble.