Sealing type fastener for high-pressure environment

Abstract

The utility model provides a sealing type fastener used in high pressure environment, which comprises a hexagon bolt main body and a fastening mechanism, the outer end of the head of the hexagon bolt main body is provided with a through hole penetrating to the outer end of a screw rod, and the through hole is located at the head end of the hexagon bolt main body and is expanded outwards to form a hexagon groove. The outer surface of a screw of the hexagon bolt body is in threaded connection with a nut, the fastening mechanism is arranged outside the hexagon bolt body and the nut, and the fastening mechanism comprises a connecting frame detachably installed on the outer surface of the nut. According to the sealing type fastener used for the high-pressure environment, the fastening mechanism is arranged, the main body of the bolt structure is a traditional bolt structure, the fastening mechanism can be installed outside the traditional bolt structure after the traditional bolt structure is installed, the fastening mechanism can conduct one-layer reinforcement on the bolt structure again, and the double fastening effect is achieved; therefore, the stability of the bolt is improved, and the problems of loosening and the like in a high-pressure environment are avoided.

Description

Technical Field

[0001] This utility model relates to the field of fastener technology, and in particular to a sealing fastener for high-pressure environments. Background Technology

[0002] Fasteners are a wide range of mechanical parts used for fastening connections. They are used in a broad range of industries, including energy, electronics, electrical appliances, machinery, chemicals, metallurgy, mold making, and hydraulics. Various types of fasteners can be found on all kinds of machinery, equipment, vehicles, ships, railways, bridges, buildings, structures, tools, instruments, chemicals, meters, and supplies, making them the most widely used basic mechanical components. They are characterized by a large variety of types and specifications, diverse performance and applications, and a high degree of standardization, serialization, and generalization. Therefore, some people refer to fasteners with existing national standards as standard fasteners, or simply standard parts.

[0003] Bolts are a common type of fastener. Standard bolts typically use standard specifications, and sealing rings are usually required at fastening points to ensure a tight seal. However, under high pressure, bolts are prone to loosening, which can affect the stability of the connection between two structures and create safety hazards.

[0004] Therefore, it is necessary to provide a new type of sealing fastener for high-pressure environments to solve the above-mentioned technical problems. Summary of the Invention

[0005] This invention provides a sealing fastener for high-pressure environments, which solves the technical problem that bolt structures are prone to loosening under high pressure, thus affecting the connection stability between two structures and creating safety hazards.

[0006] To solve the above-mentioned technical problems, the present invention provides a sealing fastener for high-pressure environments, comprising a hexagonal bolt body and a fastening mechanism;

[0007] The head of the hexagonal bolt body has a through hole extending to the outer end of its screw. The through hole is located at the head end of the hexagonal bolt body and expands outward to form a hexagonal groove. A nut is threaded onto the outer surface of the screw of the hexagonal bolt body.

[0008] The fastening mechanism is disposed outside the hexagonal bolt body and the nut. The fastening mechanism includes a connecting frame detachably mounted on the outer surface of the nut. The outer end surface of the connecting frame has a through-hole. A rotating block is rotatably connected inside the mounting hole. A threaded post is fixedly connected to the inner end surface of the rotating block. The other end of the threaded post passes through the through-hole and the hexagonal groove and extends to the outer end of the head of the hexagonal bolt body. A plug with an outer contour that matches the inner contour of the hexagonal groove is threaded onto the outer surface of the threaded post.

[0009] Preferably, the outer end surface of the insert has a threaded hole that is adapted to the threaded post, and the insert is threadedly connected to the outer surface of the threaded post through the threaded hole.

[0010] Preferably, the inner contour of the connecting frame is adapted to the outer contour of the nut.

[0011] Preferably, the outer end surface of the rotating block is provided with a cross groove.

[0012] Preferably, a pressure ring is movably provided on the outside of the screw of the hexagonal bolt body, and one side surface of the pressure ring is provided with anti-slip texture.

[0013] Preferably, the central axes of the hexagonal bolt body, the nut, the connecting frame, the rotating block, the threaded post, and the insert are all located on the same straight line.

[0014] Compared with related technologies, the sealing fastener for high-pressure environments provided by this utility model has the following beneficial effects: This utility model provides a sealing fastener for high-pressure environments. By setting a fastening mechanism, the main body of the bolt structure is a traditional bolt structure. After the traditional bolt structure is installed, a fastening mechanism can be installed on its exterior. The fastening mechanism can reinforce the bolt structure again, achieving a double fastening effect, thereby improving the stability of the bolt and avoiding problems such as loosening under high pressure. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the exploded structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the nut portion of the fastening mechanism in this utility model;

[0017] Figure 3 This is a schematic diagram of the bolt portion of the fastening mechanism in this utility model.

[0018] The following are the labels in the diagram: 1. Hex bolt body, 2. Nut, 3. Hex slot, 4. Insert block, 5. Connecting frame, 6. Rotating block, 7. Threaded post, 8. Threaded hole, 9. Pressure ring, 10. Anti-slip texture, 11. Cross groove. Detailed Implementation

[0019] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0020] Please refer to the following: Figure 1 , Figure 2 and Figure 3 ,in, Figure 1 This is a schematic diagram of the exploded structure of this utility model; Figure 2 This is a schematic diagram of the nut portion of the fastening mechanism in this utility model; Figure 3 This is a schematic diagram of the bolt portion of the fastening mechanism in this utility model. The sealing fastener for high-pressure environments includes: a hexagonal bolt body 1 and a fastening mechanism;

[0021] The head of the hexagonal bolt body 1 has a through hole extending to the outer end of its screw. The through hole is located at the head end of the hexagonal bolt body 1 and expands outward to form a hexagonal groove 3. A nut 2 is threaded onto the outer surface of the screw of the hexagonal bolt body 1.

[0022] The fastening mechanism is located outside the hexagonal bolt body 1 and the nut 2. The fastening mechanism includes a connecting frame 5 that is detachably installed on the outer surface of the nut 2. The outer end surface of the connecting frame 5 has a through-hole. A rotating block 6 is rotatably connected inside the mounting hole. A threaded post 7 is fixedly connected to the inner end surface of the rotating block 6. The other end of the threaded post 7 passes through the through-hole and the hexagonal groove 3 and extends to the outer end of the head of the hexagonal bolt body 1. The outer surface of the threaded post 7 is threaded with an insert 4 whose outer contour matches the inner contour of the hexagonal groove 3.

[0023] The outer end surface of the insert 4 is provided with a threaded hole 8 that is adapted to the threaded post 7, and the insert 4 is threadedly connected to the outer surface of the threaded post 7 through the threaded hole 8.

[0024] The central axes of the hexagonal bolt body 1, nut 2, connecting frame 5, rotating block 6, threaded post 7, and insert block 4 are all located on the same straight line.

[0025] When using this bolt, first install the hexagonal bolt body 1 and nut 2 onto the structure to be connected, just like a normal bolt structure. Then, install the fastening mechanism on the outside of the bolt structure. When installing the fastening mechanism, first align the insert 4 with the hexagonal slot 3 and insert it into the inside of the hexagonal slot 3. Then, snap the connecting frame 5 onto the outer surface of the nut 2. At this time, the outer end of the threaded post 7 will press against the inner end surface of the insert 4. Then, rotate the rotating block 6 to drive the threaded post 7 to rotate synchronously. Under the action of the threaded hole 8, the threaded post 7 will screw into the inside of the insert 4 until it is tightened. At this time, the original bolt structure can be further tightened and fixed through this fastening mechanism, thereby improving the stability of the device.

[0026] Furthermore, even if the structure is subjected to vibration, the threaded column 7 is rotatably connected to the connecting frame 5 through the rotating block 6, so even if it rotates, the threaded structure will not become loose, which further improves the stability of the structure.

[0027] The inner contour of the connecting frame 5 is adapted to the outer contour of the nut 2.

[0028] The inner contour of the connecting frame 5 is adapted to the outer contour of the nut 2, so that the connecting frame 5 can be stably snapped onto the outer surface of the nut 2 without slipping.

[0029] A cross groove 11 is provided on the outer end surface of the rotating block 6.

[0030] The cross groove 11 makes it easier for workers to use a screwdriver to rotate the rotating block 6, improving the convenience of installing the fastening mechanism.

[0031] A pressure ring 9 is movably provided on the outside of the screw of the hexagonal bolt body 1, and anti-slip texture is provided on one side surface of the pressure ring 9.

[0032] The anti-slip texture on the inner side of the pressure ring 9 improves the anti-slip performance and enhances the stability of the structure after installation.

[0033] The working principle of the sealing fastener for high-pressure environments provided by this utility model is as follows: When using this bolt, firstly, the hexagonal bolt body 1 and nut 2 are installed on the structure to be connected in the same way as a normal bolt structure. Then, the fastening mechanism can be installed on the outside of the bolt structure. When installing the fastening mechanism, firstly, the insert 4 is aligned with the hexagonal groove 3 and inserted into the inside of the hexagonal groove 3. Then, the connecting frame 5 is clamped on the outer surface of the nut 2. At this time, the outer end of the threaded post 7 will press against the inner end surface of the insert 4. Then, the rotating block 6 is rotated, which drives the threaded post 7 to rotate synchronously. Under the action of the threaded hole 8, the threaded post 7 will be screwed into the inside of the insert 4 until it is tightened. At this time, the original bolt structure can be further tightened and fixed by the fastening mechanism, thereby improving the stability of the device.

[0034] Compared with related technologies, the sealing fastener for high-pressure environments provided by this utility model has the following beneficial effects: This utility model provides a sealing fastener for high-pressure environments. By setting a fastening mechanism, the main body of the bolt structure is a traditional bolt structure. After the traditional bolt structure is installed, a fastening mechanism can be installed on its exterior. The fastening mechanism can reinforce the bolt structure again, achieving a double fastening effect, thereby improving the stability of the bolt and avoiding problems such as loosening under high pressure.

[0035] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A sealing fastener for high-pressure environments, characterized in that, Includes a hexagonal bolt body (1) and a fastening mechanism; The head of the hexagonal bolt body (1) is provided with a through hole extending to the outer end of its screw. The through hole is located at the head end of the hexagonal bolt body (1) and expands outward to form a hexagonal groove (3). A nut (2) is threadedly connected to the outer surface of the screw of the hexagonal bolt body (1). The fastening mechanism is located outside the hexagonal bolt body (1) and the nut (2). The fastening mechanism includes a connecting frame (5) detachably mounted on the outer surface of the nut (2). The outer end surface of the connecting frame (5) is provided with a through mounting hole. A rotating block (6) is rotatably connected inside the mounting hole. A threaded post (7) is fixedly connected to the inner end surface of the rotating block (6). The other end of the threaded post (7) passes through the through hole and the hexagonal groove (3) and extends to the outer end of the head of the hexagonal bolt body (1). The outer surface of the threaded post (7) is threaded with an insert (4) whose outer contour matches the inner contour of the hexagonal groove (3).

2. The sealing fastener for high-pressure environments according to claim 1, characterized in that, The outer end surface of the insert (4) is provided with a threaded hole (8) that is compatible with the threaded post (7), and the insert (4) is threadedly connected to the outer surface of the threaded post (7) through the threaded hole (8).

3. The sealing fastener for high-pressure environments according to claim 1, characterized in that, The inner contour of the connecting frame (5) is adapted to the outer contour of the nut (2).

4. The sealing fastener for high-pressure environments according to claim 1, characterized in that, The outer end surface of the rotating block (6) is provided with a cross groove (11).

5. The sealing fastener for high-pressure environments according to claim 1, characterized in that... 。 6. The sealing fastener for high-pressure environments according to claim 1, characterized in that, The central axes of the hexagonal bolt body (1), the nut (2), the connecting frame (5), the rotating block (6), the threaded post (7), and the insert block (4) are all located on the same straight line.

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