Anti-theft mechanical lock cylinder
By designing anti-theft components in the mechanical lock core, using the correct tooth shape and length of the key to unlock, and locking itself when damaged, the problem of poor anti-theft effect in the prior art is solved, and the anti-theft performance of the lock core is significantly improved.
Patent Information
- Application Number
- CN202421520935.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-28
- Publication Date
- 2024-12-20
- Estimated Expiration
- 2034-06-28
AI Technical Summary
The existing mechanical lock core has poor effect in anti-theft and is easily opened by criminals through tools, and lacks an effective anti-theft structure.
An anti-theft mechanical lock core is designed, adopting the first and second lock core tiles, with built-in anti-theft components, including locking posts, embedding slots, embedding blocks, moving posts and return springs, through the correct tooth shape of the key and The length is used to unlock the lock and realize self-locking when illegally damaged to improve the anti-theft effect.
Improves the anti-theft effect of the lock core, ensuring that only the correct key can unlock, and locks itself when destroyed, enhancing the safety of the door.
Smart Images
Figure CN222207505U_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the technical field of mechanical locks, and more specifically to an anti-theft mechanical lock core. Background Art
[0002] The lock core is the main part that controls the opening of the mechanical lock. It is the heart of the lock. It refers to the core part that can rotate with the key and drive the lock bolt to move.
[0003] At present, a Chinese patent with announcement number CN216476749U discloses a mechanical lock core that is easy to replace, including a door body, a lock body is provided in the inner cavity of the door body, a lock core is provided in the inner cavity of the lock body, both sides of the front of the door body are fixedly connected with a shell, the front of the lock core is movably connected with a fixed cover, both sides of the fixed cover are fixedly connected with a clamp, the opposite end of the clamp extends to the inner cavity of the shell and is movably connected with its inner wall, and the top of the inner cavity of the shell is fixedly connected with a first spring.
[0004] The mechanical lock core similar to the above-mentioned one in the prior art only solves the problem that the lock core is inconvenient to replace, but the mechanical lock core does not have an anti-theft structure inside. When criminals use tools to pry the lock outside the door, the door can also be opened. The anti-theft effect is poor, so there is room for improvement. Utility Model Content
[0005] In view of the deficiencies in the prior art, the utility model aims to provide an anti-theft mechanical lock cylinder, which has the advantages of:
[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:
[0007] An anti-theft mechanical lock core comprises a first lock core block and a second lock core block, wherein a first lock core shaft and a second lock core shaft are respectively arranged inside the first lock core block and the second lock core block, wherein springs and pins are arranged inside the first lock core shaft and the second lock core shaft, wherein a first rotating cylinder and a second rotating cylinder are respectively arranged on opposite sides of the first lock core shaft and the second lock core shaft, wherein a same rotating shell is arranged on one side where the first rotating cylinder and the second rotating cylinder are connected, wherein a shifting block is arranged at the bottom of the rotating shell, and an anti-theft component is arranged inside the rotating shell;
[0008] The anti-theft assembly comprises a first rotating cover and a second rotating cover, a locking column is arranged inside the second rotating cover, an embedding groove is arranged at the bottom of the locking column, a mounting groove is arranged at one end of the locking column, a connecting spring is arranged on the inner wall of the mounting groove, and a mounting block is connected to one end of the connecting spring away from the locking column;
[0009] The shift block is a hollow structure, a locking spring is arranged inside the shift block, a moving column is arranged at one end of the locking spring away from the shift block, a sliding hole is opened on the surface of the second rotating cover, an embedded block is slidably connected to the inner wall of the sliding hole, the embedded block is in contact with the moving column, and the embedded block can be embedded in the embedded groove under the action of the locking spring.
[0010] By adopting the above technical solution, when the key is inserted, the key pushes the locking column to move, the embedded block slides out of the embedded groove, and the gap between the moving column and the embedded block is aligned with the gap between the second rotating cylinder and the second rotating cover. At this time, the lock core shaft can be rotated to unlock the door only when the key teeth are correct, that is, not only the teeth on the key must meet the requirements of the spring and the pin, but also the length of the key must meet the requirements before the door can be unlocked. The requirements for the unlocking key are high, thereby improving the anti-theft effect of the mechanical lock.
[0011] In a preferred embodiment: a sliding column is provided at one end of the locking column away from the mounting block, a moving block is provided at one end of the sliding column away from the locking column, the moving block slides on the inner wall of the first rotating cover, a return spring is provided inside the first rotating cover, and the return spring is sleeved on the sliding column.
[0012] By adopting the above technical solution, when the key is inserted, the head of the key will push the moving block to move. After the moving block moves, it will first compress the reset spring, and then drive the locking column to move to complete the unlocking. The reset spring facilitates the timely reset of the locking column after unlocking, further improving the anti-theft effect of the lock core.
[0013] In a preferred embodiment: the cross-sections of the embedding block and the moving column on the opposite side are both circular structures, and the cross-sections of the embedding block and the moving column on the opposite side have the same area.
[0014] By adopting the above technical solution, when the cross-sections of the embedded block and the movable column are the same, the movable column can be conveniently pushed to move the embedded block, thereby improving the convenience of operation.
[0015] In a preferred embodiment, the end of the embedded block away from the moving column is in a truncated cone structure.
[0016] By adopting the above technical solution, the design of a truncated cone structure at one end can make the surface of the embedded block smoother, reduce the friction between the embedded block and the embedded groove, and improve the convenience of moving the embedded block in the embedded groove.
[0017] In a preferred embodiment: the embedded groove includes a shallow groove and a deep groove, and a slope structure is formed between the shallow groove and the deep groove.
[0018] By adopting the above technical solution, a slope structure is formed between the shallow groove and the deep groove, so that the embedded block can move freely between the shallow groove and the deep groove, thereby improving the smoothness of unlocking.
[0019] In a preferred embodiment: an anti-wear plate is provided at one end of the moving block away from the locking column.
[0020] By adopting the above technical solution and providing the anti-wear plate, when the key is pressed against the moving block to rotate, the anti-wear plate can play a good anti-wear effect and reduce the damage to the moving block.
[0021] In a preferred embodiment: a buffer pad is provided at the connection between the mounting block and the locking column, and the buffer pad is made of rubber.
[0022] By adopting the above technical solution and setting the buffer pad, when the locking column and the mounting block come into contact, the buffer pad can play a good buffering effect, thereby reducing the wear between the locking column and the mounting block and increasing the service life of the lock core.
[0023] Compared with the prior art, this application has the following beneficial effects:
[0024] 1. When in use, when the key is inserted, the key pushes the locking column to move, the embedded block slides out of the embedded groove, and the gap between the moving column and the embedded block is aligned with the gap between the second rotating cylinder and the second rotating cover. At this time, the lock core shaft can be rotated to unlock the lock only when the key teeth are correct;
[0025] When criminals damage the lock core from the outside, the locking column will lose the obstruction of the lock core and move. As the lock core moves, the embedded block enters the embedded groove. The gap between the moving column and the embedded block is not aligned with the gap between the second rotating cylinder and the second rotating cover. At this time, the moving column will enter the second rotating cylinder to hinder its rotation, thereby achieving self-locking; not only the key teeth must meet the requirements of the spring and the pin, but also the length of the key must meet the requirements to unlock the lock. The requirements for the unlocking key are relatively high, which improves the anti-theft effect of the mechanical lock;
[0026] 2. When the key is inserted, the key head will push the moving block to move. After the moving block moves and compresses the reset spring, it drives the locking column to move, so that it can be reset in time after unlocking, further improving the anti-theft effect of the lock core; when the cross-sections of the embedded block and the moving column are the same, the moving column can conveniently push the embedded block to move, which improves the convenience of operation. BRIEF DESCRIPTION OF THE DRAWINGS
[0027] Figure 1 It is a schematic diagram of the three-dimensional structure of this embodiment;
[0028] Figure 2 is a structural schematic diagram highlighting the first rotating drum in this embodiment;
[0029] Figure 3 is a structural schematic diagram highlighting the first rotating cover of this embodiment;
[0030] Figure 4 is a structural schematic diagram highlighting the moving block of this embodiment;
[0031] Figure 5 1 is a schematic diagram of the structure of the present embodiment highlighting the connecting spring.
[0032] Explanation of the accompanying drawings: 1. First lock core block; 2. Second lock core block; 3. First lock core shaft; 4. First rotating cylinder; 5. Second rotating cylinder; 6. Rotating shell; 7. Push block; 8. First rotating cover; 9. Second rotating cover; 10. Locking column; 11. Embedding groove; 12. Connecting spring; 13. Mounting block; 14. Locking spring; 15. Moving column; 16. Embedding block; 17. Sliding column; 18. Moving block; 19. Reset spring; 20. Anti-wear plate; 21. Buffer pad. DETAILED DESCRIPTION
[0033] In order to make the objectives, technical solutions and advantages of the embodiments of the present disclosure more clear, the technical solutions of the embodiments of the present disclosure will be clearly and completely described below in conjunction with the drawings of the embodiments of the present disclosure.
[0034] In the description of the present disclosure, it should be understood that the terms "upper", "lower", "left", "right", "inside", "outside", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, or are the orientations or positional relationships in which the disclosed product is conventionally placed when in use, or are the orientations or positional relationships conventionally understood by those skilled in the art. They are only for the convenience of describing the present disclosure and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present disclosure.
[0035] An anti-theft mechanical lock core, such as Figure 1-5 As shown, it includes a first lock core block 1 and a second lock core block 2, the first lock core block 1 and the second lock core block 2 are respectively provided with a first lock core shaft 3 and a second lock core shaft, the first lock core shaft 3 and the second lock core shaft are both provided with springs and pins, the first lock core shaft 3 and the second lock core shaft are respectively provided with a first rotating cylinder 4 and a second rotating cylinder 5 on the opposite sides, the first rotating cylinder 4 and the second rotating cylinder 5 are connected with the same rotating shell 6 on one side, a shift block 7 is provided at the bottom of the rotating shell 6, and an anti-theft component is provided inside the rotating shell 6.
[0036] In one specific embodiment, Figure 3 As shown, the anti-theft component includes a first rotating cover 8 and a second rotating cover 9, a locking column 10 is arranged inside the second rotating cover 9, an embedding groove 11 is provided at the bottom of the locking column 10, an installation groove is provided at one end of the locking column 10, a connecting spring 12 is provided on the inner wall of the installation groove, and a mounting block 13 is connected to the end of the connecting spring 12 away from the locking column 10.
[0037] It should be noted that, in the present embodiment, the shift block 7 is a hollow structure, a locking spring 14 is provided inside the shift block 7, a moving column 15 is provided at one end of the locking spring 14 away from the shift block 7, a sliding hole is provided on the surface of the second rotating cover 9, an embedding block 16 is slidably connected to the inner wall of the sliding hole, the embedding block 16 is in contact with the moving column 15, and the embedding block 16 can be embedded in the embedding groove 11 under the action of the locking spring 14.
[0038] Based on the above embodiments, Figure 4 As shown, a sliding column 17 is provided at one end of the locking column 10 away from the mounting block 13, and a moving block 18 is provided at one end of the sliding column 17 away from the locking column 10. The moving block 18 slides on the inner wall of the first rotating cover 8, and a reset spring 19 is provided inside the first rotating cover 8. The reset spring 19 is sleeved on the sliding column 17. When the key is inserted, the head of the key will push the moving block 18 to move. After the moving block 18 moves, it will first compress the reset spring 19, and then drive the locking column 10 to move to complete unlocking. The reset spring 19 can realize the timely reset of the locking column after unlocking, further improving the anti-theft effect of the lock core.
[0039] Based on the above embodiment, the cross-sections of the opposite sides of the embedded block 16 and the movable column 15 are both circular structures, and the cross-sectional areas of the opposite sides of the embedded block 16 and the movable column 15 are the same, so that the movable column 15 can easily push the embedded block 16 to move, thereby improving the convenience of operation.
[0040] Furthermore, the end of the embedding block 16 away from the moving column 15 is in a truncated cone structure, that is, the surface of the embedding block 16 is relatively smooth, which can reduce the friction between the embedding block 16 and the embedding groove 11 and improve the convenience of the embedding block 16 moving in the embedding groove 11.
[0041] It should be noted that in this embodiment, the embedding groove 11 includes a shallow groove and a deep groove, and there is a slope structure between the shallow groove and the deep groove, so that the embedding block 16 can move freely between the shallow groove and the deep groove, thereby improving the smoothness of unlocking.
[0042] It is worth mentioning that an anti-wear plate 20 is provided at one end of the moving block 18 away from the locking column 10. The anti-wear plate 20 can play a good anti-wear effect and reduce the damage to the moving block 18; a buffer pad 21 is provided at the connection between the mounting block 13 and the locking column 10. The buffer pad 21 is made of rubber. When the locking column 10 and the mounting block 13 are in contact, the buffer pad 21 can play a good buffering effect, which can reduce the wear between the locking column 10 and the mounting block 13 and increase the service life of the lock core.
[0043] The working process and beneficial effects of the utility model are as follows:
[0044] When the key is inserted, the key pushes the locking column 10 to move, and the embedded block 16 slides out of the embedded groove 11, and the gap between the moving column 15 and the embedded block 16 is aligned with the gap between the second rotating cylinder 5 and the second rotating cover 9. At this time, the lock core shaft can be rotated to unlock the lock when the key teeth are correct;
[0045] When criminals destroy the lock core from the outside, the locking column 10 will lose the obstruction of the lock core and move. As the lock core moves, the embedding block 16 will enter the embedding groove 11. The gap between the moving column 15 and the embedding block 16 is not aligned with the gap between the second rotating cylinder 5 and the second rotating cover 9. At this time, the moving column 15 will enter the second rotating cylinder 5 to hinder its rotation, thereby achieving self-locking.
[0046] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the design concept of the present invention should be included in the protection scope of the present invention.
Claims
1. An anti-theft mechanical lock core, comprising a first lock core block (1), a second lock core block (2), a first lock core shaft (3) and a second lock core shaft, wherein the first lock core shaft (3) and the second lock core shaft are both provided with springs and pins, a first rotating cylinder (4) and a second rotating cylinder (5) are respectively provided on opposite sides of the first lock core shaft (3) and the second lock core shaft, a same rotating shell (6) is provided on one side where the first rotating cylinder (4) and the second rotating cylinder (5) are connected, and a shifting block (7) is provided at the bottom of the rotating shell (6), characterized in that: An anti-theft component is arranged inside the rotating shell (6); the anti-theft component comprises a first rotating cover (8) and a second rotating cover (9); a locking column (10) is arranged inside the second rotating cover (9); an embedding groove (11) is arranged at the bottom of the locking column (10); a mounting groove is arranged at one end of the locking column (10); a connecting spring (12) is arranged on the inner wall of the mounting groove; and a mounting block (13) is connected to one end of the connecting spring (12) away from the locking column (10); The shift block (7) is a hollow structure, a locking spring (14) is arranged inside the shift block (7), a moving column (15) is arranged at one end of the locking spring (14) away from the shift block (7), a sliding hole is opened on the surface of the second rotating cover (9), an embedding block (16) is slidably connected to the inner wall of the sliding hole, the embedding block (16) is in contact with the moving column (15), and the embedding block (16) can be embedded in the embedding groove (11) under the action of the locking spring (14).
2. The anti-theft mechanical lock cylinder according to claim 1, characterized in that: A sliding column (17) is arranged at one end of the locking column (10) away from the mounting block (13); a moving block (18) is arranged at one end of the sliding column (17) away from the locking column (10); the moving block (18) slides on the inner wall of the first rotating cover (8); a return spring (19) is arranged inside the first rotating cover (8); and the return spring (19) is sleeved on the sliding column (17).
3. The anti-theft mechanical lock cylinder according to claim 1, characterized in that: The cross-sections of the opposite sides of the embedding block (16) and the moving column (15) are both circular structures, and the cross-sections of the opposite sides of the embedding block (16) and the moving column (15) are the same in area.
4. The anti-theft mechanical lock cylinder according to claim 3, characterized in that: The end of the embedded block (16) away from the moving column (15) is in a truncated cone structure.
5. The anti-theft mechanical lock cylinder according to claim 4, characterized in that: The embedding groove (11) comprises a shallow groove and a deep groove, and a slope structure is formed between the shallow groove and the deep groove.
6. The anti-theft mechanical lock cylinder according to claim 2, characterized in that: An anti-wear plate (20) is provided at one end of the moving block (18) away from the locking column (10).
7. An anti-theft mechanical lock cylinder according to any one of claims 1 to 6, characterized in that: A buffer pad (21) is provided at the connection between the mounting block (13) and the locking column (10), and the buffer pad (21) is made of rubber material.