Cylindrical head inside hexagonal bolt with anti-theft function

Abstract

The utility model discloses a cylinder head inside hexagonal bolt with an anti-theft function, which comprises a bolt body, a lock hole body is arranged outside the bolt body, the other end of the lock hole body is fixedly connected with a connecting rod, the other end of the connecting rod is fixedly connected with a first gear, the inside of the first gear is meshed with a first rack, and the first rack is meshed with a second rack. The upper surface of the first rack is fixedly connected with a lock column. A rotating rod is arranged in the lock column, a second gear is arranged at the bottom of the rotating rod, a second rack is connected into the second gear in an engaged mode, and a lock rod is fixedly connected to the side surface of the second rack. By means of the device, linkage of the gear and the rack is driven through the connecting rod, movement of the lock column and the lock rod is controlled, after the locking mechanism is started, the lock column and the lock rod can be embedded into the inner hexagonal structure, any conventional tool is prevented from disassembling the bolt, and therefore the unauthorized disassembling behavior is effectively prevented, and the safety of the bolt is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to bolt technical field, especially a cylindrical head inner hexagonal bolt with anti -theft function. BACKGROUND

[0002] With the increasing demand for safety in modern society, especially in the field of industrial equipment, building facilities and public facilities, the importance of anti-theft measures has also increased.

[0003] The existing bolt technology mostly adopts simple shape or material hardness to increase protection, but this way has poor anti-disassembly performance, and it is easy to be illegally disassembled by relevant personnel using conventional tools, resulting in damage and loss of equipment or facilities. For example, Chinese patent CN202123012628.8 discloses a cylindrical head inner hexagonal bolt with anti-theft function. The arc-shaped rod cannot be moved, which can shield the hexagonal groove, so that the tool cannot be inserted into the hexagonal groove, and thus theft cannot be implemented. Moreover, the arc-shaped rod can surround the bolt body from the outside, so that the bolt body cannot be disassembled from the outside by the tool, improving the anti-theft performance. However, it relies on the process of heating and melting glue, which not only complicates the operation but also requires additional equipment, increasing the inconvenience of use. Secondly, after the glue solidifies, the plunger is stuck, so that the driving structure cannot move, which may affect the normal operation or maintenance of the bolt in some cases. SUMMARY

[0004] The utility model aims at least to solve one of the technical problems existing in the prior art, and provides a cylindrical head inner hexagonal bolt with anti-theft function. Through the linkage of mechanical structures such as connecting rod, first gear, first rack, etc., the up and down movement of the lock column is realized, so that the bolt cannot be easily disassembled in the locked state. In addition, the cooperation of the rotating rod and the second gear with the second rack can further enhance the locking effect. Through the double fixation of the lock rod and the lock column, the anti-theft performance is significantly improved, preventing any conventional tool from disassembling the bolt, thereby effectively preventing unauthorized disassembly. The operation is simple, ensuring the efficiency and reliability of the bolt in the anti-theft function.

[0005] The utility model discloses still provide with above-mentioned one has the anti -theft function's cylinder head internal hexagonal bolt, include: bolt body, bolt body outside is provided with the lock hole body, the other end fixedly connected with connecting rod of lock hole body, the other end fixedly connected with first gear of connecting rod, first gear inside is engaged with first rack, and the first rack upper surface fixedly connected with lock post, the lock post inside is provided with the rotation bar, the rotation bar bottom is provided with second gear, and second gear inside is engaged with second rack, and the second rack side surface fixedly connected with lock rod, and the lock post side is provided with the moving hole. Through above device, through the linkage of connecting rod drive gear and rack, control the movement of lock post and lock rod, when locking mechanism starts, lock post and lock rod will embed in the internal hex structure, prevent any conventional tool to the bolt and disassembles, thereby effectively prevent the unauthorized disassembly behavior, improved the security of bolt.

[0006] According to the utility model discloses a kind of anti -theft function's cylinder head internal hexagonal bolt, the lock hole body is located at the side of bolt body, and bolt body inside is provided with lock groove. Through above device, the setting position of lock hole is more covert, increase the difficulty of theft prevention.

[0007] According to the utility model discloses a kind of anti -theft function's cylinder head internal hexagonal bolt, the connecting rod is located in lock groove inside, and the connecting rod is located in the middle of lock groove. Through above device, through the position of connecting rod, ensure the security of connecting rod, prevent external force from damaging it.

[0008] According to the utility model discloses a kind of anti -theft function's cylinder head internal hexagonal bolt, the first rack side surface fixedly connected with first sliding rod, the lock groove side is provided with first sliding slot, and the first sliding rod sliding connection is in the inside of first sliding slot. Through above device, through first sliding rod and first sliding slot, ensure the stability of rack, improve the fluency of locking and unlocking.

[0009] According to the utility model discloses a kind of anti -theft function's cylinder head internal hexagonal bolt, the through -hole is provided in the top of bolt body, and the lock post is located in the inside of through -hole, and the through -hole is communicated with lock groove. Through above device, through the communication of through -hole and lock groove, the up and down movement of lock post can be realized, to effectively lock or release bolt.

[0010] According to the utility model discloses a kind of anti -theft function's cylinder head internal hexagonal bolt, the rotation bar top is provided with knob, and the knob is located at the outside of lock post. Through above device, through the design of knob, user can conveniently control the rotation of rotation bar, to control the action of internal gear, reach the purpose of theft prevention.

[0011] The utility model relates to a cylindrical head inner hexagonal bolt with anti -theft function, the inside of lock post is provided with adjusting groove, second gear and second rack are located inside adjusting groove, the number of second rack is two, and second rack is located two sides of second gear.

[0012] The utility model relates to a cylindrical head inner hexagonal bolt with anti -theft function, second rack lower surface fixedly connected with second slide rod, adjusting groove bottom is provided with second sliding slot, second slide rod slidingly connects inside second sliding slot, and the moving path of lock rod passes through moving hole.

[0013] Beneficial effects

[0014] Compared with the prior art, the cylindrical head inner hexagonal bolt with anti -theft function is linked through the linkage of connecting rod, first gear, first rack and other mechanical structures, realizes the up-down movement of lock post, makes the bolt unable to be easily disassembled under the locking state.In addition, the cooperation of rotating rod, second gear and second rack can further enhance the locking effect, the double fixation of lock rod and lock post significantly improves the anti -theft performance, prevents any conventional tool from disassembling the bolt, thereby effectively preventing unauthorized disassembly behavior. Simple operation ensures the high efficiency and reliability of the bolt in the anti -theft function. BRIEF DESCRIPTION OF DRAWINGS

[0015] The utility model will be further explained in connection with the drawings and examples;

[0016] Figure 1 It is the front view of the cylindrical head inner hexagonal bolt with anti -theft function of the utility model;

[0017] Figure 2 It is the front view of the cylindrical head inner hexagonal bolt with anti -theft function of the utility model; Figure 1 Front view;

[0018] Figure 3 It is the front view of the cylindrical head inner hexagonal bolt with anti -theft function of the utility model; Figure 1 Internal structure diagram;

[0019] Figure 4 It is the front view of the cylindrical head inner hexagonal bolt with anti -theft function of the utility model; Figure 2 Enlarged view of A in the middle;

[0020] Figure 5The utility model discloses a cylindrical head internal hexagonal bolt with anti-theft function Figure 3 The enlarged view of the middle B.

[0021] Legend:

[0022] 1, bolt body;2, lock hole body;3, lock groove;4, connecting rod;5, first gear;6, first rack;7, lock column;8, first sliding rod;9, first sliding slot;10, adjusting groove;11, second sliding slot;12, second sliding rod;13, rotating rod;14, knob;15, second gear;16, second rack;17, lock rod;18, moving hole;19, through hole. Specific embodiments

[0023] This part will describe the specific embodiments of the utility model in detail, and the preferred embodiments of the utility model are shown in the drawings, and the drawings are used to supplement the description of the text part, so that people can intuitively and visually understand each technical feature and the overall technical scheme of the utility model, but it cannot be understood as the limitation of the protection scope of the utility model.

[0024] Reference Figures 1-5 , the utility model discloses a cylindrical head internal hexagonal bolt with anti-theft function, it includes: bolt body 1, bolt body 1 outside is provided with lock hole body 2, lock hole body 2 is operated by key, controls the locking and release of internal anti-theft mechanism, lock hole body 2 is located at the side of bolt body 1, bolt body 1 inside is provided with lock groove 3, lock groove 3 contains and guides the operation of connecting rod 4 and other components, ensures the stability of internal mechanism, lock hole body 2 another end is fixedly connected with connecting rod 4, connecting rod 4 passes through rotating motion to drive locking mechanism, connecting rod 4 is located in lock groove 3, connecting rod 4 is located in the middle of lock groove 3, connecting rod 4 another end is fixedly connected with first gear 5, first gear 5 is through with the meshing of first rack 6, converts rotating motion into linear motion, to drive the movement of lock column 7, first gear 5 is meshed with first rack 6 in the inside, first rack 6 is driven to move up lock column 7 by gear drive, realizes locking or release, first rack 6 side surface is fixedly connected with first sliding rod 8, first sliding rod 8 ensures the stability of first rack 6 when sliding in lock groove 3, lock groove 3 side is provided with first sliding slot 9, first sliding slot 9 ensures the accurate guidance and smooth movement of first rack 6, first sliding rod 8 is slidably connected in the inside of first sliding slot 9, first rack 6 upper surface is fixedly connected with lock column 7, lock column 7 realizes the locking or unlocking of bolt.

[0025] The bolt body 1 is provided with a through hole 19 at the top, the through hole 19 accommodates the lock post 7 and allows it to extend or retract, the lock post 7 is located inside the through hole 19, the through hole 19 is communicated with the lock slot 3, the lock post 7 is internally provided with a rotating rod 13, the rotating rod 13 controls the movement of the lock rod 17, the rotating rod 13 is provided with a knob 14 at the top, the knob 14 is located outside the lock post 7, the rotating rod 13 is provided with a second gear 15 at the bottom, the second gear 15 transmits the rotating motion of the rotating rod 13 to the second rack 16, the second gear 15 is meshingly connected with the second rack 16 inside, the second rack 16 controls the transverse movement of the lock rod 17 through gear transmission, the lock post 7 is internally provided with an adjusting groove 10, the second gear 15 and the second rack 16 are located inside the adjusting groove 10, the number of the second rack 16 is two, the second rack 16 is located on both sides of the second gear 15, the lock rod 17 is fixedly connected to the side surface of the second rack 16, the lock rod 17 realizes the final anti-theft locking, the lock post 7 is provided with a moving hole 18 at the side, the moving hole 18 allows the lock rod 17 to move freely during the locking or unlocking process, the second rack 16 is fixedly connected with a second sliding rod 12 at the lower surface, the adjusting groove 10 is provided with a second sliding groove 11 at the bottom, the second sliding rod 12 is slidingly connected inside the second sliding groove 11, and the movement path of the lock rod 17 penetrates through the moving hole 18.

[0026] Working principle: in use, when the bolt needs to be locked, the user first operates the lock hole body 2 through the key to drive the internal connecting rod 4 to rotate, the connecting rod 4 drives the first gear 5 to rotate, and then pushes the first rack 6 meshing therewith to move upwards, so that the lock post 7 extends out of the through hole 19 at the top of the bolt body 1, and the preliminary locking is realized. Next, the user rotates the knob 14 outside the lock post 7 to drive the rotating rod 13 to rotate, and then the second gear 15 at the bottom of the rotating rod 13 meshes with the second rack 16 on both sides, and as the second rack 16 moves in the opposite direction, the lock rod 17 moves out of the moving hole 18 at the side of the lock post 7 and enters the internal hexagonal area of the bolt body 1. At this time, the lock post 7 and the lock rod 17 are locked at the same time, so that the bolt body 1 cannot be disassembled by conventional tools, thereby effectively preventing illegal disassembly and theft.

[0027] The above describes the embodiments of the utility model in detail in combination with the drawings, but the utility model is not limited to the above-mentioned embodiments, and various changes can be made within the knowledge range possessed by the ordinary skilled in the art without departing from the purpose of the utility model.

Claims

1. A cylindrical head internal hex bolt with anti-theft function, characterized in that, Include: The bolt body (1) is provided with a lock hole body (2) outside, the other end of the connecting rod (4) is fixedly connected with the first gear (5), the first gear (5) is engaged with the first gear rack (6) inside, the first gear rack (6) is fixedly connected with the lock column (7) on the upper surface; The lock column (7) is provided with a rotating rod (13) inside, the bottom of the rotating rod (13) is provided with a second gear (15), the second gear (15) is engaged with the second gear rack (16) inside, the second gear rack (16) is fixedly connected with the lock rod (17) on the side surface, the lock column (7) is provided with a moving hole (18) on the side.

2. The hexagonal socket head bolt with anti-theft function according to claim 1, characterized in that, The lock hole body (2) is located on the side of the bolt body (1), and the bolt body (1) is provided with a lock groove (3) inside.

3. The hexagonal socket head bolt with anti-theft function according to claim 2, characterized in that, The connecting rod (4) is located in the lock groove (3), and the connecting rod (4) is located in the middle of the lock groove (3).

4. The hexagonal socket head bolt with anti-theft function according to claim 2, characterized in that, The first gear rack (6) is fixedly connected with a first sliding rod (8) on the side surface, the lock groove (3) is provided with a first sliding groove (9) on the side, and the first sliding rod (8) is slidingly connected in the first sliding groove (9).

5. The hexagonal socket head bolt with anti-theft function according to claim 2, characterized in that, The bolt body (1) is provided with a through hole (19) on the top, the lock column (7) is located in the through hole (19), and the through hole (19) is communicated with the lock groove (3).

6. The hexagonal socket head bolt with anti-theft function according to claim 1, characterized in that, The top of the rotating rod (13) is provided with a knob (14), and the knob (14) is located outside the lock column (7).

7. The hexagonal socket head bolt with anti-theft function according to claim 1, characterized in that, The lock column (7) is provided with an adjusting groove (10) inside, the second gear (15) and the second gear rack (16) are located in the adjusting groove (10), the number of the second gear rack (16) is two, and the second gear rack (16) is located on both sides of the second gear (15).

8. The hexagonal socket head bolt with anti-theft function according to claim 7, characterized in that, The second gear rack (16) is fixedly connected with a second sliding rod (12) on the lower surface, the adjusting groove (10) is provided with a second sliding groove (11) on the bottom, the second sliding rod (12) is slidingly connected in the second sliding groove (11), and the moving path of the lock rod (17) penetrates through the moving hole (18).

Images