Hexagon nut with embedded sealing gasket

Abstract

The utility model discloses an embedded sealing gasket hexagon nut, which belongs to the technical field of hexagon nuts, and comprises a hexagon screw main body and a hexagon nut main body, the hexagon nut main body is in threaded connection with the hexagon screw main body, the hexagon screw main body is sleeved with a second sealing gasket plate, a second sealing ring is fixedly arranged in the second sealing gasket plate, and the second sealing ring is fixedly arranged in the second sealing gasket plate. A plurality of second embedded inserting pieces are fixedly installed at the bottom end of the second sealing gasket plate, a first sealing gasket plate is fixedly installed at the top end of the hexagon nut body, a first sealing ring is fixedly installed on the first sealing gasket plate, and a mounting groove matched with the second sealing ring is formed in the second sealing gasket plate. The embedded gasket is combined with an adjustable extrusion mechanism, initial sealing and long-term stability are guaranteed, the embedded insertion piece is meshed with a connected piece, displacement of the gasket is prevented, extrusion force can be dynamically adjusted, the sealing effect is further improved, meanwhile, the hexagonal screw body is limited at a time, and installation is firmer.

Description

Technical Field

[0001] This utility model relates to the field of hexagonal nut technology, and in particular to an embedded sealing gasket hexagonal nut. Background Technology

[0002] In the field of mechanical connections, nuts are widely used as fastening elements in various equipment and structures. Traditional hexagonal nuts typically rely on independent sealing gaskets to achieve sealing at the connection points. However, this split design has significant limitations: the independent gasket must be manually placed on the connection surface, which is prone to misalignment, tilting, or incomplete fit due to operational errors, especially under vibration, high pressure, or temperature change environments, increasing the risk of seal failure. Assembly efficiency is low: installation requires aligning the gasket before tightening the nut, a cumbersome and time-consuming process. In confined spaces or complex working conditions, the operation is even more difficult, and the gasket may detach due to compression, requiring reinstallation. Space occupation is significant: independent gaskets increase the thickness of the connection, potentially making them unusable in precision equipment or compact structures due to insufficient space. Traditional limiting structures (such as slots or adhesive fixation) are prone to failure due to material aging or stress relaxation, leading to gasket detachment. Adjustable sealing mechanisms (such as external pressure rings) are complex in structure, requiring additional tools for adjustment, making operation inconvenient. By integrating the sealing gasket with the nut body into a single design, combined with an adjustable compression mechanism and multiple limiting structures, automatic compensation sealing, vibration resistance and anti-loosening, quick installation and long-term reliable sealing are achieved, meeting the mechanical connection requirements under harsh environments such as high pressure, vibration and corrosion.

[0003] In traditional mechanical connections, a standard hexagonal nut is typically used in conjunction with an independent sealing gasket to achieve a seal. This method has several drawbacks: the independent gasket is prone to leaks due to improper installation, especially under vibration or high pressure conditions; it requires separate placement and alignment of the gasket with the bolt, which is cumbersome and inefficient; and over time, the gasket may age, loosen, or fall off, leading to leakage risks. Therefore, we propose an embedded sealing gasket hexagonal nut to address this problem. Utility Model Content

[0004] The purpose of this invention is to provide an embedded sealing gasket hexagonal nut to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] An embedded sealing gasket hexagonal nut includes: a hexagonal screw body and a hexagonal nut body, the hexagonal nut body being threadedly connected to the hexagonal screw body, a second sealing gasket plate being sleeved on the hexagonal screw body, a second sealing ring being fixedly installed inside the second sealing gasket plate, a plurality of embedded inserts being fixedly installed at the bottom end of the second sealing gasket plate, a first sealing gasket plate being fixedly installed at the top end of the hexagonal nut body, a first sealing ring being fixedly installed on the first sealing gasket plate, an installation groove matching the second sealing ring being formed on the second sealing gasket plate, a connecting groove matching the first sealing ring being formed on the first sealing gasket plate, a plurality of embedded inserts being fixedly installed at the top end of the first sealing gasket plate, and an inner fixing rod being fixedly installed inside the hexagonal screw body, the inner fixing rod containing a second limiting compression component.

[0007] Preferably, the second limiting compression assembly includes: a small threaded rod and two threaded rings, the two threaded rings being threadedly connected to the small threaded rod, a plurality of rotating round blocks I being fixedly installed on the outer side of the threaded rings, a plurality of sliding long plates being slidably installed inside the hexagonal screw body, a plurality of rotating round blocks II being fixedly installed on one side of the sliding long plates, a common connecting plate being rotatably installed between two adjacent rotating round rods I, and two adjacent rotating round blocks II being rotatably connected to the same connecting plate.

[0008] Preferably, a rotating circular block three is fixedly installed at the top of the small threaded rod. A cross groove is formed on the rotating circular block three, and a hexagonal groove is formed on the body of the hexagonal screw. A rotating circular groove matching the rotating circular block three is formed at the bottom end of the hexagonal groove.

[0009] Preferably, a first rotating round rod and a second rotating round rod are fixedly installed on both sides of the connecting plate, the first rotating round rod has a rotating concave hole that matches the first rotating round rod, and the second rotating round rod has a rotating circular hole that matches the second rotating round rod.

[0010] Preferably, the sliding long plate has an installation groove on one side, and a rubber extrusion plate is fixedly installed in the installation groove. The inner fixed round rod has a sliding round groove that matches the threaded ring.

[0011] Preferably, the hexagonal screw body has a sliding recessed hole that matches the sliding plate, the hexagonal screw body has a sliding groove that matches the connecting plate, and the small threaded rod has two threaded grooves with opposite directions of rotation.

[0012] In this utility model, an embedded sealing gasket hexagonal nut is constructed using metal cold heading or precision casting processes to ensure the hexagonal shape and thread accuracy. A countersunk hole is machined at the top of the nut body to embed a sealing gasket plate one, and a groove is machined on the inner side of the nut body to embed a sealing gasket plate two. Both sealing gasket plates one and two are made of rubber, silicone, or fluororubber and are molded using a die. Embedded inserts one and two are provided on the outer edge to enhance the interlocking ability. Sealing ring one and sealing ring two are vulcanized and integrally formed to ensure a tight fit with the gasket plates. Furthermore, the small threaded rod adopts a bidirectional thread design, with the threaded ring connected to a rotating block one. A rubber extrusion plate is fixed to the inner side of the sliding long plate. This controls the relative proximity or movement of the two threaded rings. Simultaneously, the cooperation of the rotating rod one, the connecting plate, and the rotating block two controls the movement of the sliding long plate and the extrusion plate, further restricting movement and making the installation more secure.

[0013] In this utility model, an embedded sealing gasket hexagonal nut is provided by embedding a sealing gasket plate one into the top of the hexagonal nut body and fixing it in place. A second sealing gasket plate is then fitted onto the hexagonal screw body and coaxially installed with the inner fixing rod. The hexagonal nut body is aligned with the bolt or threaded hole and manually tightened until the first sealing gasket plate contacts the connected part. A wrench is used to rotate the rotating block three at the top of the hexagonal screw body, driving the small threaded rod to rotate. The sliding long plate pushes the rubber extrusion plate to radially compress the sealing gasket until the ideal sealing effect is achieved. The extrusion pressure can be dynamically adjusted by rotating the small threaded rod to adapt to different media pressure and temperature changes. The small threaded rod adopts a bidirectional threaded groove design, which drives the two threaded rings on both sides to move towards or away from each other when rotating. The sliding long plate pushes the rubber extrusion plate to radially compress the sealing gasket to adapt to different sealing requirements.

[0014] This utility model has a reasonable structural design. The embedded gasket is combined with the adjustable extrusion mechanism to ensure initial sealing and long-term stability. The embedded insert engages with the connected parts to prevent the gasket from shifting. The extrusion pressure can be dynamically adjusted to further improve the sealing effect, while also restricting the hexagonal screw body again, making the installation more secure. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of an embedded sealing gasket hexagonal nut proposed in this utility model;

[0016] Figure 2 This is a cross-sectional view of an embedded sealing gasket hexagonal nut proposed in this utility model;

[0017] Figure 3 This is a partial cross-sectional view of an embedded sealing gasket hexagonal nut proposed in this utility model.

[0018] In the diagram: 1. Hexagonal screw body; 2. Hexagonal nut body; 3. Sealing gasket plate one; 4. Sealing ring one; 5. Embedded insert one; 6. Sealing gasket plate two; 7. Rotating block three; 8. Sealing ring two; 9. Embedded insert two; 10. Internal fixed rod; 11. Small threaded rod; 12. Sliding long plate; 13. Rubber extrusion plate; 14. Threaded ring; 15. Rotating rod one; 16. Connecting plate; 17. Rotating block two; 18. Rotating rod two; 19. Rotating block one. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0020] Reference Figure 1-3 An embedded sealing gasket hexagonal nut includes: a hexagonal screw body 1 and a hexagonal nut body 2. The hexagonal nut body 2 is threadedly connected to the hexagonal screw body 1. A sealing gasket plate 2 6 is sleeved on the hexagonal screw body 1. A sealing ring 2 8 is fixedly installed inside the sealing gasket plate 2 6. Multiple embedded inserts 2 9 are fixedly installed at the bottom end of the sealing gasket plate 2 6. A sealing gasket plate 1 3 is fixedly installed at the top end of the hexagonal nut body 2. A sealing ring 1 4 is fixedly installed on the sealing gasket plate 1 3. An installation groove matching the sealing ring 2 8 is opened on the sealing gasket plate 2 6. A connecting groove matching the sealing ring 1 4 is opened on the sealing gasket plate 1 3. Multiple embedded inserts 1 5 are fixedly installed at the top end of the sealing gasket plate 1 3. An inner fixing rod 10 is fixedly installed inside the hexagonal screw body 1. A second limiting compression component is provided inside the inner fixing rod 10.

[0021] In this embodiment, the second limiting compression assembly includes: a small threaded rod 11 and two threaded rings 14. The two threaded rings 14 are threadedly connected to the small threaded rod 11. Multiple rotating round blocks 19 are fixedly installed on the outer side of the threaded rings 14. Multiple sliding long plates 12 are slidably installed inside the hexagonal screw body 1. Multiple rotating round blocks 2 17 are fixedly installed on one side of the sliding long plate 12. The same connecting plate 16 is rotatably installed between two adjacent rotating round rods 15. Both adjacent rotating round blocks 2 17 are rotatably connected to the same connecting plate 16 for limiting, making the installation more secure.

[0022] In this embodiment, a rotating circular block 3 7 is fixedly installed at the top of the small threaded rod 11. A cross groove is provided on the rotating circular block 3 7, and a hexagonal groove is provided on the hexagonal screw body 1. A rotating circular groove matching the rotating circular block 3 7 is provided at the bottom of the hexagonal groove for better rotation. A rotating circular rod 1 15 and a rotating circular rod 2 18 are fixedly installed on both sides of the connecting plate 16, respectively. A rotating concave hole matching the rotating circular rod 15 is provided on the rotating circular block 1 19, and a rotating circular hole matching the rotating circular rod 2 18 is provided on the rotating circular block 2 17 for convenient connection and installation.

[0023] In this embodiment, a mounting groove is provided on one side of the sliding long plate 12, and a rubber extrusion plate 13 is fixedly installed in the mounting groove. A sliding circular groove matching the threaded ring 14 is provided in the inner fixed circular rod 10, which further improves the sealing effect and restricts it to prevent it from falling off.

[0024] In this embodiment, the hexagonal screw body 1 has a sliding recessed hole that matches the sliding plate 12, and the hexagonal screw body 1 has a sliding groove that matches the connecting plate 16. The small threaded rod 11 has two threaded grooves with opposite directions of rotation, which better controls the movement of the structure.

[0025] In this embodiment, during use, the hexagonal shape and thread accuracy are ensured by employing metal cold heading or precision casting processes. A countersunk hole is machined at the top of the nut body 2 to embed a sealing gasket plate 3. A groove is machined on the inner side of the screw body 1 to embed a sealing gasket plate 6. The sealing gasket plates 3 and 6 are made of rubber, silicone, or fluororubber and are molded using a die. Embedded inserts 5 and 9 are provided on the outer edge to enhance the interlocking ability. Sealing rings 4 and 8 are vulcanized and integrally molded to ensure a tight fit with the gasket plates. The small threaded rod 11 adopts a bidirectional thread design, and the threaded ring 14 is connected to the rotating block 19. A rubber extrusion plate 13 is fixed to the inner side of the sliding long plate 12. By controlling the mutual approach or retraction of the two threaded rings 14, and simultaneously controlling the movement of the sliding long plate 12 and the extrusion plate 13 through the cooperation of the rotating rod 15, connecting plate 16, and rotating block 17, the installation is further restricted, making the installation more secure.

[0026] The sealing gasket plate 13 is embedded into the top of the hexagonal nut body 2 and fixed. The sealing gasket plate 26 is sleeved on the hexagonal screw body 1 and coaxially installed with the inner fixing rod 10. The hexagonal nut body 2 is aligned with the bolt or threaded hole and manually tightened until the sealing gasket plate 13 contacts the connected part. The rotating block 3 7 at the top of the hexagonal screw body 1 is rotated with a wrench to drive the small threaded rod 11 to rotate. The rubber extrusion plate 13 is pushed radially through the sliding long plate 12 to squeeze the sealing gasket until the ideal sealing effect is achieved. The extrusion pressure can be dynamically adjusted by rotating the small threaded rod 11 to adapt to different media pressure and temperature changes. The small threaded rod 11 adopts a bidirectional threaded groove design. When rotating, it drives the threaded rings 14 on both sides to move towards or away from each other. The rubber extrusion plate 13 is pushed radially through the sliding long plate 12 to squeeze the sealing gasket to adapt to different sealing requirements.

[0027] The above provides a detailed description of the embedded sealing gasket hexagonal nut provided by this utility model. Specific embodiments have been used to illustrate the principle and implementation of this utility model. The descriptions of the embodiments above are only for the purpose of helping to understand the method and core idea of ​​this utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made to this utility model without departing from the principle of this utility model, and these improvements and modifications also fall within the protection scope of the claims of this utility model.

Claims

1. A hexagonal nut with an embedded sealing gasket, characterized in that, include: A hexagonal screw body (1) and a hexagonal nut body (2) are provided. The hexagonal nut body (2) is threaded onto the hexagonal screw body (1). A sealing gasket plate 2 (6) is fitted onto the hexagonal screw body (1). A sealing ring 2 (8) is fixedly installed inside the sealing gasket plate 2 (6). Multiple embedded inserts 2 (9) are fixedly installed at the bottom end of the sealing gasket plate 2 (6). A sealing gasket plate 1 (3) is fixedly installed at the top end of the hexagonal nut body (2). A sealing ring 1 (4) is fixedly installed on the first (3). The second sealing gasket plate 2 (6) has an installation groove that matches the second sealing ring 2 (8). The first sealing gasket plate 1 (3) has a connection groove that matches the first sealing ring 1 (4). Multiple embedded inserts 1 (5) are fixedly installed on the top of the first sealing gasket plate 1 (3). An inner fixing rod (10) is fixedly installed inside the hexagonal screw body (1). A second limiting extrusion component is provided inside the inner fixing rod (10).

2. The embedded sealing gasket hexagonal nut according to claim 1, characterized in that, The second limiting compression assembly includes: a small threaded rod (11) and two threaded rings (14), the two threaded rings (14) being threadedly connected to the small threaded rod (11), a plurality of rotating round blocks (19) being fixedly installed on the outside of the threaded rings (14), a plurality of sliding long plates (12) being slidably installed inside the hexagonal screw body (1), a plurality of rotating round blocks (2) (17) being fixedly installed on one side of the sliding long plate (12), a common connecting plate (16) being rotatably installed between two adjacent rotating round blocks (19), and two adjacent rotating round blocks (2) (17) being rotatably connected to the same connecting plate (16).

3. The embedded sealing gasket hexagonal nut according to claim 2, characterized in that, The top of the small threaded rod (11) is fixedly installed with a rotating circular block three (7). The rotating circular block three (7) has a cross groove, and the hexagonal screw body (1) has a hexagonal groove. The bottom of the hexagonal groove has a rotating circular groove that matches the rotating circular block three (7).

4. The embedded sealing gasket hexagonal nut according to claim 2, characterized in that, The connecting plate (16) is fixedly installed with a rotating round rod one (15) and a rotating round rod two (18) on both sides respectively. The rotating round block one (19) is provided with a rotating concave hole that matches the rotating round rod one (15), and the rotating round block two (17) is provided with a rotating round hole that matches the rotating round rod two (18).

5. The embedded sealing gasket hexagonal nut according to claim 2, characterized in that, The sliding long plate (12) has an installation groove on one side, and a rubber extrusion plate (13) is fixedly installed in the installation groove. The inner fixed round rod (10) has a sliding round groove that matches the threaded ring (14).

6. The embedded sealing gasket hexagonal nut according to claim 2, characterized in that, The hexagonal screw body (1) has a sliding recessed hole that matches the sliding plate (12), and the hexagonal screw body (1) has a sliding groove that matches the connecting plate (16). The small threaded rod (11) has two threaded grooves with opposite directions.

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