Constant hydraulic adjusting hinge bolt

Abstract

The utility model relates to the technical field of fasteners, and particularly discloses a constant hydraulic adjusting hinge bolt which is characterized in that a first circular groove is formed in the top of a bolt column, a second circular groove is formed in the bolt column, a first bolt head is fixedly mounted at the top of the bolt column, a mounting cylinder is fixedly mounted in the bolt column, and a second bolt head is rotatably mounted at the top of the mounting cylinder; when hydraulic pressure in the bolt column needs to be increased, the miniature bolt is rotated out of the interior of the first bolt head, the fourth circular groove is aligned to the upper portion of the arrow, liquid is injected into the fourth circular groove, the liquid enters the bolt column through the fourth circular groove and the third circular groove, and the bolt column is fixed through the third circular groove and the fourth circular groove. When the hydraulic pressure in the bolt needs to be reduced, the mounting plate is rotated anticlockwise, the mounting plate drives the spring and the sliding plate to move from top to bottom, at the moment, the fifth circular groove is formed above the sliding plate, the liquid can flow out of the fifth circular groove, and therefore the function of adjusting the hydraulic pressure is achieved.

Description

Technical Field

[0001] This utility model relates to the field of fastener technology, and in particular to a constant hydraulic adjustable hinge bolt. Background Technology

[0002] Bolts are mechanical parts, cylindrical threaded fasteners that are fitted with nuts. They consist of a head and a threaded shank and require a nut to fasten two parts with through holes. Hinged bolts refer to bolts that can be connected by hinges.

[0003] For example, a Chinese patent discloses a robust hinge bolt (patent number: CN219795806U). By using a rotating cover and a rubber block, the contact surface between the bolt and the connector is held in place by the rubber block, making the bolt more secure and less prone to loosening.

[0004] However, during the implementation of the above technical solution, at least the following technical problems were found: As mentioned above, in practical applications, the load borne by the hinge structure is constantly changing. The above device is difficult to adjust the connection force provided by the bolt by changing the hydraulic pressure, thus making it difficult to adapt to loads of different sizes and directions and ensure the stability and reliability of the connection. Utility Model Content

[0005] (a) Technical problems to be solved

[0006] To address the shortcomings of existing technologies, this utility model provides a constant hydraulic adjustable hinge bolt, which solves the technical problem mentioned above that in practical applications, the load borne by the hinge structure is constantly changing, and the above-mentioned devices are difficult to adjust the connection force provided by the bolt by changing the hydraulic pressure, thus making it difficult to adapt to loads of different sizes and directions and ensure the stability and reliability of the connection.

[0007] (II) Technical Solution

[0008] To achieve the above objectives, this utility model provides the following technical solution:

[0009] A constant hydraulic adjustable hinge bolt includes a bolt post with an adjustment mechanism inside. The adjustment mechanism includes a first circular groove, a second circular groove, a first bolt head, a second bolt head, a mounting cylinder, a third circular groove, and a fourth circular groove. The first circular groove is located at the top of the bolt post, the second circular groove is located inside the bolt post, the first bolt head is fixedly installed at the top of the bolt post, the mounting cylinder is fixedly installed inside the bolt post, the second bolt head is rotatably installed at the top of the mounting cylinder, the third circular groove is located inside the mounting cylinder, and the fourth circular groove is located inside the second bolt head.

[0010] Preferably, an arrow is fixedly installed on the side wall of the first bolt head, and miniature bolts are installed on the internal threads of the second bolt head and the first bolt head.

[0011] Preferably, the side wall of the bolt has a fifth circular groove, and a connecting ring is fixedly installed at the bottom of the bolt.

[0012] Preferably, a mounting plate is slidably installed inside the bolt, and a spring is fixedly installed on the top of the mounting plate.

[0013] Preferably, a sliding plate is fixedly installed on the top of the spring.

[0014] Preferably, the side wall of the bolt has a perforation.

[0015] (III) Beneficial Effects

[0016] 1. When it is necessary to increase the internal hydraulic pressure of the sprue, rotate the miniature bolt out of the first sprue head, align the fourth groove with the upper part of the arrow, and inject liquid into the fourth groove. The liquid enters the sprue through the fourth and third grooves. When it is necessary to decrease the internal hydraulic pressure of the sprue, rotate the mounting plate counterclockwise. The mounting plate drives the spring and sliding plate to move from top to bottom. At this time, the fifth groove will appear above the sliding plate, and the liquid can flow out from the fifth groove, thereby achieving the function of adjusting the hydraulic pressure.

[0017] 2. When the ambient temperature rises, the bolt body will expand. At this time, the mounting plate and sliding plate will expand with the bolt, and the internal space will increase. The spring will rebound under force, so that the sliding plate and the liquid inside the bolt will always keep in close contact, ensuring the hydraulic stability inside the bolt. Attached Figure Description

[0018] The above description is only an overview of the technical solution of this utility model. In order to better understand the technical means of this utility model and to implement it in accordance with the contents of the specification, the preferred embodiments of this utility model are described in detail below with reference to the accompanying drawings.

[0019] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0020] Figure 2 This is a structural diagram of the second circular groove of this utility model;

[0021] Figure 3 This is a structural diagram of the mounting cylinder of this utility model;

[0022] Figure 4 This is a structural diagram of the connecting ring of this utility model.

[0023] Legend: 11. Bolt; 12. First groove; 13. Second groove; 14. First bolt head; 15. Second bolt head; 16. Mounting cylinder; 17. Third groove; 18. Fourth groove; 19. Arrow; 21. Miniature bolt; 22. Fifth groove; 23. Connecting ring; 24. Mounting plate; 25. Spring; 26. Sliding plate; 27. Perforation. Detailed Implementation

[0024] This application provides a constant hydraulic pressure adjusting hinge bolt, effectively solving the problem described above where, in practical applications, the load on the hinge structure is constantly changing, making it difficult for the aforementioned devices to adjust the connection force provided by the bolt by changing the hydraulic pressure. This makes it difficult to adapt to loads of different sizes and directions, ensuring the stability and reliability of the connection. When it is necessary to increase the hydraulic pressure inside the bolt, the micro bolt is rotated out of the first bolt head, the fourth circular groove is aligned with the upper part of the arrow, and liquid is injected into the fourth circular groove. The liquid enters the bolt through the fourth and third circular grooves. When it is necessary to reduce the hydraulic pressure inside the bolt, the mounting plate is rotated counterclockwise. The mounting plate drives the spring and sliding plate to move from top to bottom. At this time, the fifth circular groove will appear above the sliding plate, and the liquid can flow out from the fifth circular groove, thereby achieving the function of adjusting the hydraulic pressure. When the ambient temperature increases, the bolt body will expand. At this time, the mounting plate and sliding plate will expand with the bolt, increasing the internal space. The spring rebounds, keeping the sliding plate and the liquid inside the bolt in close contact, ensuring the stability of the hydraulic pressure inside the bolt.

[0025] Example

[0026] like Figure 1 , Figure 2 , Figure 3 and Figure 4As shown, the technical solution in this application embodiment effectively solves the technical problem that, in practical applications, the load borne by the hinge structure is constantly changing, and the above-mentioned device is difficult to adjust the connection force provided by the bolt by changing the hydraulic pressure, thus making it difficult to adapt to loads of different sizes and directions and ensure the stability and reliability of the connection. The overall idea is as follows: A constant hydraulic adjustable hinge bolt includes a bolt post 11, and an adjustment mechanism is provided inside the bolt post 11. The adjustment mechanism includes a first circular groove 12, a second circular groove 13, a first bolt head 14, a second bolt head 15, a mounting cylinder 16, a third circular groove 17, and a fourth circular groove 18. The first circular groove 12 is opened at the top of the bolt post 11, the second circular groove 13 is opened inside the bolt post 11, the first bolt head 14 is fixedly installed at the top of the bolt post 11, and the mounting cylinder... The first bolt 14 is fixedly installed inside the bolt 16. The second bolt head 15 is rotatably installed on the top of the mounting cylinder 16. The third circular groove 17 is opened inside the mounting cylinder 16. The fourth circular groove 18 is opened inside the second bolt head 15. When it is necessary to increase the hydraulic pressure inside the bolt 11, the micro bolt 21 is rotated out of the first bolt head 14. The fourth circular groove 18 is aligned with the top of the arrow 19. Liquid is injected into the fourth circular groove 18. The liquid enters the bolt 11 through the fourth circular groove 18 and the third circular groove 17. When it is necessary to reduce the hydraulic pressure inside the bolt 11, the mounting plate 24 is rotated counterclockwise. The mounting plate 24 drives the spring 25 and the sliding plate 26 to move from top to bottom. At this time, the fifth circular groove 22 will appear above the sliding plate 26. Liquid can flow out from the fifth circular groove 22, thereby achieving the function of adjusting the hydraulic pressure.

[0027] Arrow 19 is fixedly installed on the side wall of the first bolster head 14. Miniature bolts 21 are threaded inside the second bolster head 15 and the first bolster head 14. A fifth circular groove 22 is opened on the side wall of the bolster post 11. A connecting ring 23 is fixedly installed at the bottom of the bolster post 11. An installation plate 24 is slidably installed inside the bolster post 11. A spring 25 is fixedly installed on the top of the installation plate 24. A sliding plate 26 is fixedly installed on the top of the spring 25. When the ambient temperature rises, the body of the bolster post 11 will expand. At this time, the installation plate 24 and the sliding plate 26 will expand with the bolster post 11, and the internal space will increase. The spring 25 rebounds under force, so that the sliding plate 26 and the liquid inside the bolster post 11 always keep in close contact, ensuring the hydraulic stability inside the bolster post 11.

[0028] The side wall of the bolt 11 has a through hole 27 to facilitate the installation of subsequent components.

[0029] To address the problems existing in the prior art, this utility model provides a constant hydraulic pressure regulating hinge bolt. When it is necessary to increase the internal hydraulic pressure of the bolt 11, the micro bolt 21 is rotated out of the first bolt head 14, the fourth circular groove 18 is aligned with the top of the arrow 19, and liquid is injected into the fourth circular groove 18. The liquid enters the bolt 11 through the fourth circular groove 18 and the third circular groove 17. When it is necessary to reduce the internal hydraulic pressure of the bolt 11, the mounting plate 24 is rotated counterclockwise. The mounting plate 24 drives the spring 25 and the sliding plate 26 to move from top to bottom. At this time, the fifth circular groove 22 will appear above the sliding plate 26, and the liquid can flow out from the fifth circular groove 22, thereby achieving the function of regulating the hydraulic pressure. When the ambient temperature increases, the bolt 11 body will expand. At this time, the mounting plate 24 and the sliding plate 26 will expand with the bolt 11, and the internal space will increase. The spring 25 rebounds under force, so that the sliding plate 26 and the liquid inside the bolt 11 always keep in close contact, ensuring the stability of the internal hydraulic pressure of the bolt 11.

[0030] Working principle:

[0031] First, when the ambient temperature rises, the body of the bolt 11 will expand. At this time, the mounting plate 24 and the sliding plate 26 will expand along with the bolt 11, and the internal space will increase. The spring 25 will rebound under force, so that the sliding plate 26 and the liquid inside the bolt 11 will always keep in close contact, ensuring the hydraulic stability inside the bolt 11.

[0032] The second step is to rotate the micro bolt 21 out of the first bolt head 14 when it is necessary to increase the internal hydraulic pressure of the bolt 11. Align the fourth circular groove 18 with the top of the arrow 19 and inject liquid into the fourth circular groove 18. The liquid enters the bolt 11 through the fourth circular groove 18 and the third circular groove 17. When it is necessary to reduce the internal hydraulic pressure of the bolt 11, rotate the mounting plate 24 counterclockwise. The mounting plate 24 drives the spring 25 and the sliding plate 26 to move from top to bottom. At this time, the fifth circular groove 22 will appear above the sliding plate 26, and the liquid can flow out from the fifth circular groove 22, thereby achieving the function of adjusting the hydraulic pressure.

[0033] Finally, it should be noted that the above embodiments are merely examples for clearly illustrating the present invention and are not intended to limit the implementation. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations. However, obvious variations or modifications derived therefrom are still within the protection scope of this invention.

Claims

1. A constant hydraulic pressure adjusting hinge bolt comprising a bolt shank (11), characterized in that, The inside of the post (11) is provided with an adjusting mechanism, the adjusting mechanism includes first circular groove (12), second circular groove (13), first pin head (14), second pin head (15), installation cylinder (16), third circular groove (17) and fourth circular groove (18), the first circular groove (12) is opened in the top of the post (11), the second circular groove (13) is opened in the inside of the post (11), the first pin head (14) is fixedly installed on the top of the post (11), the installation cylinder (16) is fixedly installed in the inside of the post (11); Wherein, the second pin head (15) is rotatably installed on the top of the installation cylinder (16), the third circular groove (17) is opened in the inside of the installation cylinder (16), the fourth circular groove (18) is opened in the inside of the second pin head (15).

2. A constant hydraulic pressure adjusting hinge bolt according to claim 1, wherein The sidewall of the first pin head (14) is fixedly installed with an arrow (19); Wherein, the second pin head (15) and the first pin head (14) are internally screw-mounted with a micro bolt (21).

3. A constant hydraulic pressure adjusting hinge bolt according to claim 1, wherein The sidewall of the post (11) is provided with a fifth circular groove (22); Wherein, the bottom of the post (11) is fixedly installed with a connecting ring (23).

4. A constant hydraulic pressure adjusting hinge bolt according to claim 3, wherein The inside of the post (11) is slidably installed with an installation plate (24); Wherein, the top of the installation plate (24) is fixedly installed with a spring (25).

5. A constant hydraulic pressure adjusting hinge bolt according to claim 4, wherein The top of the spring (25) is fixedly installed with a sliding plate (26).

6. A constant hydraulic pressure adjusting hinge bolt according to claim 4, wherein The sidewall of the post (11) is provided with a perforation (27).

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