Anti-theft lock capable of preventing technical unlocking

Abstract

The invention belongs to the technical field of anti-theft locks, and particularly discloses an anti-theft lock capable of preventing technical unlocking, which comprises a lock body fixedly embedded in a locked structure and provided with a through lock cylinder hole and a plurality of pin tumbler holes, and pin tumblers and springs are arranged in the pin tumbler holes; the spring bolt is detachably embedded in the lock body and is provided with a plurality of through holes, and two limiting rods are symmetrically arranged in the through holes; the lock cylinder is rotatably and movably inserted into the lock cylinder hole and is provided with a through key hole and a plurality of marble holes, the marbles are inserted into the marble holes, and marbles are arranged in the marble holes; the lock cylinder is provided with a first clamping groove close to the spring bolt, and one end of the lock cylinder is movably inserted into the penetrating hole. And the key is movably inserted into the key hole and is provided with a plurality of marble grooves. According to the invention, the plurality of marbles and marbles which are arranged and distributed together play a locking role, and the lock cylinder is set to be opened only by rotating and pushing, so that the anti-technical unlocking capability is extremely high, and the safety is high.

Description

Technical Field

[0001] The present invention belongs to the technical field of anti-theft locks, and particularly relates to an anti-theft lock for preventing technical unlocking. Background Art

[0002] With the improvement of the quality of modern people's living conditions, people's demand for home security also increases, which requires the protection of a door lock. Traditional door locks still have some drawbacks, such as being able to be damaged and opened through some specific tools and techniques; intelligent door locks, such as fingerprint and face recognition, can be opened by making a mold or using a specific jammer.

[0003] In order to solve the problem of low security of door locks in the prior art, it is necessary to improve the structure of the lock so as to solve the current technical problems. Summary of the Invention

[0004] The purpose of the present invention is to provide an anti-theft lock for preventing technical unlocking, which is difficult to be opened by technical means and has high security.

[0005] In order to achieve the above purpose, the present invention adopts the following technical solutions: An anti-theft lock for preventing technical unlocking, comprising:

[0006] A lock body, fixedly embedded in the structure to be locked, and having a through lock core hole and a plurality of pin holes. The plurality of pin holes are arranged and distributed on the side wall of the lock body, and a pin and a spring are arranged in each of the plurality of pin holes;

[0007] A lock tongue, detachably embedded in the lock body, and having a perforation with the same diameter as the lock core hole. Two limiting rods are symmetrically arranged in the perforation, and the two limiting rods are arranged radially;

[0008] A lock core, rotatably and movably inserted into the lock core hole, and having a through key hole and a plurality of ball holes. The plurality of pins are respectively movably inserted into the ball holes, the plurality of ball holes are arranged and distributed on the side wall of the lock core, and balls are arranged in each of the plurality of ball holes; One end of the lock core with the first card slot is movably inserted into the perforation so that the two limiting rods are engaged or disengaged from the first card slot;

[0009] A key, movably inserted into the key hole, and having a plurality of ball grooves.

[0010] To better implement the present invention, both the lock core and the key are cylindrical structures, and the key has a conical end.

[0011] To better implement the present invention, the pin holes are provided in two columns and are symmetrically arranged on both sides of the lock body.

[0012] To better implement the present invention, there are a total of six columns of marble holes, including two columns of symmetrically arranged control marble holes and four columns of interference marble holes. The two columns of control marble holes and the four columns of interference marble holes are arranged in a staggered manner, and the two columns of control marble holes are closer to the lock tongue;

[0013] The key has six columns of marble grooves with the same distribution form as the six columns of marble holes;

[0014] The lock body is provided with a first limit convex head away from the lock tongue. The lock core is provided with a first limit groove and a second limit groove for the first limit convex head to move. A first channel is connected between the first limit groove and the second limit groove; the distance between the first limit groove and the second limit groove is equal to the dislocation distance between the control marble hole and the interference marble hole; the first limit groove is close to the marble hole, and the length of the first limit groove is equal to the distance between the control marble hole and the nearest column of interference marble holes; the second limit groove is a circular structure.

[0015] To better implement the present invention, multiple ball holes and marble holes are obtained by arranging holes with different diameters, and the number and arrangement pitch distribution of any column of ball holes and any column of marble holes are the same.

[0016] To better implement the present invention, the ball is of a cylindrical structure.

[0017] To better implement the present invention, the marble is a metal sphere, and the aperture of the end of the marble hole communicating with the key hole is smaller than the diameter of the marble.

[0018] To better implement the present invention, an anti-lock member is rotatably and movably inserted at the end of the lock core hole away from the key. The anti-lock member has a second card slot, and the second card slot is movably inserted into the perforation so that the two limit rods are engaged or disengaged from the second card slot.

[0019] To better implement the present invention, the lock body is provided with a second limit convex head away from the lock tongue. The anti-lock member is provided with a third limit groove and a fourth limit groove for the second limit convex head to move. The fourth limit groove is close to the lock tongue, and the third limit groove and the fourth limit groove are connected with a second channel.

[0020] Beneficial effects:

[0021] In the present invention, a plurality of arranged and distributed balls and marbles jointly play a locking role, and the lock core is set to require rotation and propulsion to complete unlocking. Then, even if the lock core can be rotated successfully by technical means in the early stage, since the lock core still needs to be rotated by a certain angle and then pushed forward to make the limit rod embed in the first card slot, after the lock core rotates, the balls will be inserted into other ball holes again and lock again, having a very strong anti-technical unlocking ability. Description of the drawings

[0022] Figure 1 This is the structural diagram of the present invention in the state of being locked and with no key inserted.

[0023] Figure 2 This is the structural diagram of the present invention in the state of unlocking with a key inserted.

[0024] Figure 3 This is the internal structural diagram of the present invention in the state of being locked and with no key inserted.

[0025] Figure 4 This is the internal structural diagram of the present invention in the state of unlocking with a key inserted.

[0026] Figure 5 This is the top view of the present invention in the state of being locked and with no key inserted.

[0027] Figure 6 This is the top view of the present invention in the state of unlocking with a key inserted.

[0028] Figure 7 This is the sectional view A - A of the present invention.

[0029] Figure 8 This is the sectional view B - B of the present invention.

[0030] In the figure: 1. Lock body; 101. Keyhole; 102. Plug hole; 103. First limiting projection; 104. Second limiting projection; 2. Plug; 3. Spring; 4. Bolt; 401. Perforation; 402. Limiting rod; 5. Lock core; 501. Keyway; 502. Ball hole; 5021. Control ball hole; 5022. Interference ball hole; 503. First limiting groove; 504. Second limiting groove; 505. First channel; 506. First card slot; 6. Ball; 7. Key; 701. Ball groove; 8. Anti - lock component; 801. Third limiting groove; 802. Fourth limiting groove; 803. Second channel; 804. Second card slot. Detailed implementation mode

[0031] Embodiment

[0032] As Figures 1 - 8 shown, an anti - technical - unlocking anti - theft lock includes:

[0033] A lock body 1, fixedly embedded in the structure to be locked, and having a through - hole keyhole 101 and a plurality of plug holes 102. The plurality of plug holes 102 are arranged and distributed on the side wall of the lock body 1, and a plug 2 and a spring 3 are arranged in each of the plurality of plug holes 102;

[0034] The locking tongue 4 is detachably embedded in the lock body 1 and has a perforation 401 with the same diameter as the lock core hole 101. Two limiting rods 402 are symmetrically arranged in the perforation 401, and the two limiting rods 402 are arranged radially;

[0035] The lock core 5 is rotatably and movably inserted into the lock core hole 101 and has a through keyhole 501 and a plurality of ball holes 502. A plurality of the balls 2 are respectively movably inserted into the ball holes 502. The plurality of ball holes 502 are arranged and distributed on the side wall of the lock core 5, and balls 6 are arranged in all the plurality of ball holes 502; the lock core 5 has a first card slot 506 close to the locking tongue 4, and one end of the lock core 5 having the first card slot 506 is movably inserted into the perforation 401 so that the two limiting rods 402 are engaged or disengaged from the first card slot 506;

[0036] The key 7 is movably inserted into the keyhole 501 and has a plurality of ball slots 701.

[0037] The working principle of the present invention is outlined as follows:

[0038] When the key 7 is not inserted into the keyhole 501, the ball 6 is located at the bottom of the ball hole 502, and the ball 2 is pushed into the ball hole 502 by the spring 3. At this time, the lock core 5 is blocked by the ball 2 and cannot rotate, so the lock cannot be opened; when the key 7 is inserted, the key 7 will push up the ball 6 so that the contact point between the ball 6 and the ball 2 is exactly located at the contact surface between the lock core 5 and the lock body 1. At this time, the lock core 5 can rotate, and the limiting rod 402 is engaged with the first card slot 506, and the lock core 5 drives the locking tongue 4 to rotate to complete unlocking;

[0039] First, due to the large number of balls 2 and balls 6, the sizes of the balls 2 and balls 6 at different positions are set in various forms during the production process, so it is very difficult to open the lock by technical unlocking means; furthermore, the traditional lock core 5 can only rotate in the lock body 1, while the lock core 5 of the present application is rotatably and movably inserted into the lock core hole 101. After the key 7 is inserted, it needs to be rotated by a certain angle first and then pushed forward to make the limiting rod 402 engage with the first card slot 506 and rotate the locking tongue 4 to complete unlocking. Then, even if the lock core 5 can be rotated successfully by technical means in the early stage, since the lock core 5 still needs to be rotated by a certain angle and then pushed forward to make the limiting rod 402 engage with the first card slot 506, after the lock core 5 rotates, the ball 2 will be inserted into other ball holes 102 again to lock again. In short, as long as the lock core 5 is rotated, it will be locked again, and it has a very strong anti-technical unlocking ability. Unless the key 7 adapted to the present application is used, no matter how it is rotated, it can ensure that the contact point between the ball 6 and the ball 2 is exactly located at the contact surface between the lock core 5 and the lock body 1 to complete unlocking.

[0040] Preferably, both the lock core 5 and the key 7 are cylindrical structures. The key 7 has a conical end, which can be easily inserted into the keyhole 501 and lift the marbles 6.

[0041] Preferably, there are two columns of marble holes 102, which are symmetrically arranged on both sides of the lock body 1. By setting two columns of marble holes 102, even if someone wants to pick the lock technically, they need to simultaneously snap the marbles 2 in all the marble holes 102 into place, which increases the complexity of technical lock picking.

[0042] Preferably, there are six columns of marble holes 502 in total, including two columns of control marble holes 5021 arranged symmetrically and four columns of interference marble holes 5022. The two columns of control marble holes 5021 are arranged offset from the four columns of interference marble holes 5022, and the two columns of control marble holes 5021 are closer to the lock tongue 4;

[0043] The key 7 has six columns of marble grooves 701 with the same distribution pattern as the six columns of marble holes 502;

[0044] The lock body 1 is provided with a first limit convex head 103 away from the lock tongue 4. The lock core 5 is provided with a first limit groove 503 and a second limit groove 504 for the first limit convex head 103 to move. A first channel 505 is connected between the first limit groove 503 and the second limit groove 504; the distance between the first limit groove 503 and the second limit groove 504 is equal to the offset distance between the control marble holes 5021 and the interference marble holes 5022; the first limit groove 503 is close to the marble holes 502, and the length of the first limit groove 503 is equal to the distance between the control marble holes 5021 and the nearest column of interference marble holes 5022; the second limit groove 504 is a circular structure. Before the key 7 is inserted, the first limit convex head 103 is inserted into the first limit groove 503. At this time, the marbles 2 are inserted into the control marble holes 5021. When opening the lock with the key 7 of the present application, the key 7 is inserted into the keyhole 501, the marbles 6 in the control marble holes 5021 are lifted, the marbles 2 leave the marble holes 502, and the lock core 5 is rotated to move the position of the first limit convex head 103 by the first channel 505. At this time, the column of interference marble holes 5022 corresponds to the marble holes 102, but due to the insertion of the key 7, the marbles 2 cannot fall into the marble holes 502 to form a stop. Therefore, the lock core 5 can be pushed forward to embed the limit rod 402 into the first card slot 506 and rotate the lock tongue 4 to complete the unlocking. However, when picking the lock technically, after the column of interference marble holes 5022 corresponds to the marble holes 102, the marbles 2 will fall into the interference marble holes 5022 to form a stop, and the lock core 5 cannot be rotated, so the lock cannot be opened.

[0045] Preferably, the plurality of pin holes 102 and ball holes 502 are formed by arranging holes with different diameters. The number and arrangement spacing distribution of any column of pin holes 102 and any column of ball holes 502 are the same. Only by using the key 7 adapted to this application can marbles 6 of different sizes be lifted so that the contact point between the marbles 6 and the pins 2 is exactly located at the contact surface between the lock core 5 and the lock body 1 to complete unlocking.

[0046] Preferably, the pin 2 has a cylindrical structure, and the marble 6 is a metal sphere. The aperture of the ball hole 502 communicating with one end of the key hole 501 is smaller than the diameter of the marble 6, so that even when the key 7 is not inserted, the marble 6 will not fall into the key hole 501. The metal sphere has a smooth arc surface and it is difficult to have a fulcrum, especially in the case of no viewing field, which can further enhance the ability to prevent technical unlocking.

[0047] Preferably, an anti-lock member 8 is rotatably and movably inserted into the end of the lock core hole 101 away from the key 7. The anti-lock member 8 has a second card slot 804, and the second card slot 804 is movably inserted into the through hole 401 so that the two limit rods 402 are engaged or disengaged from the second card slot 804. The lock body 1 is provided with a second limit protrusion 104 away from the lock tongue 4. The anti-lock member 8 is provided with a third limit groove 801 and a fourth limit groove 802 for the second limit protrusion 104 to move. The fourth limit groove 802 is close to the lock tongue 4, and the third limit groove 801 and the fourth limit groove 802 communicate with a second channel 803. By providing the anti-lock member 8, when the user locks the door from the inside, the door cannot be opened no matter how it is operated from the outside. Specifically, when the second limit protrusion is located in the third limit groove 801 and the second limit protrusion is not at the position of the second channel 803, the anti-lock member 8 cannot be pushed forward. At this time, the anti-lock member 8 cannot be inserted into the through hole 401, and the first card slot 506 can be inserted into the lock tongue 4 to complete unlocking; on the contrary, when the second limit protrusion is located in the fourth limit groove 802 and the second limit protrusion is not at the position of the second channel 803, the anti-lock member 8 is inserted into the through hole 401, and the limit rod 402 is embedded in the second card slot 804 to complete anti-locking. At this time, under the action of the anti-lock member 8, the lock core 5 cannot be inserted into the through hole 401 no matter what to complete unlocking.

[0048] Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not used to limit the protection scope of the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. An anti-theft lock that can prevent technical unlocking, characterized in that: include: A lock body (1) is fixedly embedded in the locked structure and has a penetrating lock core hole (101) and a plurality of pin holes (102); the plurality of pin holes (102) are arranged and distributed on the side wall of the lock body (1); and pins (2) and springs (3) are arranged in the plurality of pin holes (102); A lock tongue (4) is detachably embedded in the lock body (1) and has a through hole (401) with the same diameter as the lock core hole (101), two limit rods (402) are symmetrically arranged in the through hole (401), and the two limit rods (402) are arranged in a radial direction; A lock core (5) is rotatably and movably inserted into the lock core hole (101), and has a through key hole (501) and a plurality of marble holes (502), wherein the plurality of marbles (2) are respectively and movably inserted into the marble holes (502), the plurality of marble holes (502) are arranged and distributed on the side wall of the lock core (5), and the plurality of marble holes (502) are each provided with a marble (6); the lock core (5) has a first slot (506) close to the lock tongue (4), and one end of the lock core (5) having the first slot (506) is movably inserted into the through hole (401) so that the two limiting rods (402) are engaged with or separated from the first slot (506); and The key (7) is movably inserted into the key hole (501) and has a plurality of marble grooves (701).

2. The anti-theft lock capable of preventing technical unlocking according to claim 1, characterized in that: The lock core (5) and the key (7) are both cylindrical structures, and the key (7) has a conical end.

3. The anti-theft lock capable of preventing technical unlocking according to claim 2, characterized in that: The pin holes (102) are provided in two rows and are symmetrically arranged on both sides of the lock body (1).

4. The anti-theft lock capable of preventing technical unlocking according to claim 3, characterized in that: The marble holes (502) are arranged in six rows, including two rows of symmetrically arranged control marble holes (5021) and four rows of interfering marble holes (5022). The two rows of control marble holes (5021) and the four rows of interfering marble holes (5022) are arranged in a staggered manner, and the two rows of control marble holes (5021) are closer to the lock tongue (4). The key (7) has six rows of marble grooves (701) with the same distribution pattern as the six rows of marble holes (502); The lock body (1) is provided with a first limiting protrusion (103) away from the lock tongue (4); the lock core (5) is provided with a first limiting groove (503) and a second limiting groove (504) for the first limiting protrusion (103) to move; a first channel (505) is connected between the first limiting groove (503) and the second limiting groove (504); the spacing between the first limiting groove (503) and the second limiting groove (504) is equal to the offset distance between the control ball hole (5021) and the interference ball hole (5022); the first limiting groove (503) is close to the ball hole (502), and the length of the first limiting groove (503) is equal to the spacing between the control ball hole (5021) and the nearest row of interference ball holes (5022); the second limiting groove (504) is an annular structure.

5. The anti-theft lock capable of preventing technical unlocking according to claim 1, characterized in that: The plurality of pin holes (102) and marble holes (502) are obtained by arranging holes of different diameters, and the number and arrangement spacing of any column of pin holes (102) and any column of marble holes (502) are the same.

6. The anti-theft lock capable of preventing technical unlocking according to claim 1, characterized in that: The marble (2) is a columnar structure.

7. The anti-theft lock capable of preventing technical unlocking according to claim 1, characterized in that: The marble (6) is a metal sphere, and the diameter of one end of the marble hole (502) connected to the key hole (501) is smaller than the diameter of the marble (6).

8. The anti-theft lock capable of preventing technical unlocking according to claim 1, characterized in that: A locking member (8) is rotatably and movably inserted at one end of the lock core hole (101) away from the key (7), and the locking member (8) has a second slot (804). The second slot (804) is movably inserted into the through hole (401) so that the two limiting rods (402) are engaged with or disengaged from the second slot (804).

9. The anti-theft lock capable of preventing technical unlocking according to claim 8, characterized in that: The lock body (1) is provided with a second limiting protrusion (104) away from the lock tongue (4); the anti-locking member (8) is provided with a third limiting groove (801) and a fourth limiting groove (802) for the second limiting protrusion (104) to move; the fourth limiting groove (802) is close to the lock tongue (4); and a second channel (803) is connected between the third limiting groove (801) and the fourth limiting groove (802).

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