A pick-proof and drill-proof mechanical lock cylinder

Abstract

The utility model discloses a kind of pry-proof and drill-proof mechanical lock core, including lock core main body The inner wall of the lock core main body is provided with mounting groove, the inside of the mounting groove is fixedly connected with first spring, one end of the first spring is fixedly connected with clamping block, the clamping block is rotatably connected in mounting groove, the side of protective cover is provided with push groove, the inside of the push groove is fixedly connected with second spring, one end of the second spring is fixedly connected with push block, the side of the push block is fixedly connected with push rod. By setting mounting groove, first spring, clamping block, when key is inserted and pulled out, clamping block can jam key, by push groove, second spring, push block, push rod, moving groove, clamping block can be pushed to rotate, the restriction to key is released, it can be unlocked by key for except user, it is not familiar with lock core use condition, leading to key jam, cannot be pulled out, can remind user that someone opens lock by key, improve warning effect.

Description

Technical Field

[0001] This utility model relates to the field of lock cylinder technology, specifically to a pry-proof and drill-proof mechanical lock cylinder. Background Technology

[0002] The lock cylinder employs multiple anti-theft technologies and various irregularly shaped anti-picking pins to prevent technical opening. Combined with a unique pin and blade structure design, it has a high level of security against technical opening. The main function of the lock cylinder is to transmit torque through the head, thereby driving other parts of the lock to achieve locking and unlocking. The lock cylinder is the main component that controls the opening of the lock and is the heart of the lock. By rotating the lock cylinder, the movement of the bolt can be driven to open and close the lock. Therefore, the structure of the lock cylinder determines the opening method and the security performance of the lock.

[0003] Traditional lock cylinders often use ordinary steel for the front panel and core cylinder body, which has low hardness. Criminals can quickly destroy the lock cylinder structure using tools such as electric drills and impact drills. In addition, the bolts on the front panel are exposed and easy to disassemble, allowing the unlocking operation to be completed in a short time. This results in low security and makes it impossible to alert outsiders to the possibility of unlocking with a key. Utility Model Content

[0004] The purpose of this utility model is to provide a pry-proof and drill-proof mechanical lock cylinder. Through a mounting groove, a first spring, and a locking block, when the key is inserted and then pulled out, the locking block can hold the key. By pushing a groove, a second spring, a push block, a push rod, and a moving groove, the locking block can be rotated to release the key. This is useful in situations where someone other than the user tries to unlock the lock with a key, and the user is unfamiliar with the lock cylinder, causing the key to jam and be unable to be pulled out. It serves as a warning to the user that someone is trying to unlock the lock with a key, thus improving the warning effect.

[0005] To achieve the above objectives, a pry-proof and drill-proof mechanical lock cylinder is provided, including a lock cylinder body, a protective cover plate is provided on one side of the lock cylinder body, a plurality of plug plates are fixedly connected to one side of the protective cover plate, a plurality of screw holes are opened on the surface of the lock cylinder body, and bolts are threadedly connected to the surface of the plug plates and located in the screw holes. The inner wall of the lock cylinder body is provided with an installation groove. A first spring is fixedly connected inside the installation groove. A locking block is fixedly connected to one end of the first spring. The locking block is rotatably connected inside the installation groove. A pushing groove is provided on one side of the protective cover. A second spring is fixedly connected inside the pushing groove. A push block is fixedly connected to one end of the second spring. A push rod is fixedly connected to one side of the push block. A moving groove is provided on one side of the pushing groove and extending to the installation groove.

[0006] According to the aforementioned anti-pry and anti-drilling mechanical lock cylinder, a key channel is provided inside the main body of the lock cylinder.

[0007] According to the aforementioned anti-pry and anti-drilling mechanical lock cylinder, the surface of the protective cover plate is provided with insertion holes.

[0008] According to the aforementioned anti-pry and anti-drilling mechanical lock cylinder, the push rod is located within the moving groove.

[0009] According to the aforementioned anti-pry and anti-drilling mechanical lock cylinder, the protective cover is made of tungsten steel.

[0010] Compared with the prior art, the beneficial effects of this utility model are: This anti-pry and anti-drilling mechanical lock cylinder, by setting a protective cover plate made of tungsten steel, can effectively resist damage from tools such as electric drills. Moreover, the bolts are located on the main body of the lock cylinder and hidden inside the lock body, making them difficult to disassemble, which greatly improves the anti-pry and anti-drilling performance of the lock cylinder.

[0011] This anti-pry and anti-drilling mechanical lock cylinder, through the setting of an installation groove, a first spring, and a locking block, can lock the key when it is inserted and pulled out. By pushing the groove, the second spring, the push block, the push rod, and the moving groove, the locking block can be rotated to release the restriction on the key. It can be used to alert the user that someone other than the user is trying to unlock the lock with a key, and that the user is not familiar with the use of the lock cylinder, causing the key to get stuck and unable to be pulled out. This can improve the warning effect.

[0012] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0013] The present invention will be further described below with reference to the accompanying drawings and embodiments; Figure 1 This is a perspective view of a pry-proof and drill-proof mechanical lock cylinder according to the present invention. Figure 2 This is a cross-sectional view of a pry-proof and drill-proof mechanical lock core according to the present invention; Figure 3 For the present utility model Figure 2 Enlarged view of point A in the middle; Figure 4 For the present utility model Figure 2 Enlarged diagram of point B in the middle.

[0014] In the diagram: 1. Lock cylinder body; 2. Key passage; 3. Protective cover plate; 4. Insertion hole; 5. Insertion plate; 6. Bolt; 7. Mounting groove; 8. First spring; 9. Locking block; 10. Push groove; 11. Second spring; 12. Push block; 13. Push rod; 14. Moving groove; 15. Screw hole. Detailed Implementation

[0015] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0016] Please see Figure 1-4 This utility model provides a technical solution: a pry-proof and drill-proof mechanical lock cylinder, including a lock cylinder body 1, a protective cover plate 3 on one side of the lock cylinder body 1, the protective cover plate 3 being made of tungsten steel, a plurality of plug plates 5 being fixedly connected to one side of the protective cover plate 3, a plurality of screw holes 15 being opened on the surface of the lock cylinder body 1, and bolts 6 being threadedly connected to the surface of the plug plates 5 and inside the screw holes 15. By setting the protective cover plate 3 made of tungsten steel, it can effectively resist the damage of tools such as electric drills, and the bolts 6 are located on the lock cylinder body 1, hidden inside the lock body, and are not easy to disassemble, which greatly improves the pry-proof and drill-proof performance of the lock cylinder; The inner wall of the lock cylinder body 1 has an installation groove 7. A first spring 8 is fixedly connected inside the installation groove 7. A locking block 9 is fixedly connected to one end of the first spring 8. The locking block 9 is rotatably connected within the installation groove 7. A push groove 10 is provided on one side of the protective cover plate 3. A second spring 11 is fixedly connected inside the push groove 10. A push block 12 is fixedly connected to one end of the second spring 11. A push rod 13 is fixedly connected to one side of the push block 12. A moving groove 14 is provided on one side of the push groove 10 and extending to the installation groove 7. The push rod 13 is located in the moving groove 14. By setting the installation groove 7, the first spring 8, and the locking block 9, when the key is inserted and then pulled out, the locking block 9 can lock the key. By pushing the groove 10, the second spring 11, the push block 12, the push rod 13, and the moving groove 14, the locking block 9 can be pushed to rotate, releasing the restriction on the key. This can be used to alert the user that someone is trying to unlock the lock with a key, as the user is unfamiliar with the use of the lock cylinder and the key is stuck and cannot be pulled out. This improves the warning effect.

[0017] The lock cylinder body 1 has a key passage 2 inside.

[0018] The protective cover plate 3 has insertion holes 4 on its surface.

[0019] Working principle: When in use, after the key is inserted, the locking block 9 presses the first spring 8, compressing the first spring 8 and causing the locking block 9 to enter the mounting groove 7 to unlock. The first spring 8 then resets, causing the locking block 9 to return to its original position. When the key is pulled out, the push block 12 is pushed, which in turn moves the push rod 13. At the same time, the push block 12 presses the second spring 11, and the push rod 13 causes the locking block 9 to rotate, allowing it to enter the mounting groove 7, thus releasing the key and allowing it to be pulled out.

[0020] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. A pry-proof and drill-proof mechanical lock cylinder, comprising a lock cylinder body (1), characterized in that, A protective cover plate (3) is provided on one side of the lock cylinder body (1). Several plug plates (5) are fixedly connected to one side of the protective cover plate (3). Several screw holes (15) are opened on the surface of the lock cylinder body (1). Bolts (6) are threadedly connected to the surface of the plug plate (5) and inside the screw holes (15). The inner wall of the lock cylinder body (1) is provided with an installation groove (7). A first spring (8) is fixedly connected inside the installation groove (7). A locking block (9) is fixedly connected to one end of the first spring (8). The locking block (9) is rotatably connected inside the installation groove (7). A push groove (10) is provided on one side of the protective cover plate (3). A second spring (11) is fixedly connected inside the push groove (10). A push block (12) is fixedly connected to one end of the second spring (11). A push rod (13) is fixedly connected to one side of the push block (12). A moving groove (14) is provided on one side of the push groove (10) and extending to the installation groove (7).

2. The anti-pry and anti-drilling mechanical lock cylinder as described in claim 1, characterized in that: The lock cylinder body (1) has a key channel (2) inside.

3. The anti-pry and anti-drilling mechanical lock cylinder as described in claim 1, characterized in that: The protective cover (3) has insertion holes (4) on its surface.

4. The anti-pry and anti-drilling mechanical lock cylinder as described in claim 1, characterized in that: The push rod (13) is located in the moving slot (14).

5. A pry-proof and drill-proof mechanical lock cylinder as described in claim 1, characterized in that: The protective cover (3) is made of tungsten steel.

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