Pipeline connecting flange

Abstract

The utility model discloses a pipeline connecting flange, and relates to the field of pipeline connection. The guide block and the guide groove are arranged, when a pipeline is connected, the obvious guide function can be achieved, rapid butt joint of the first flange and the second flange is achieved, bolts can be rapidly installed, and the working efficiency of pipeline connection is obviously improved; the extrusion block can tightly extrude and fit the sealing gasket to the first flange by means of the extrusion effect of the guide block on the second sliding block, the sealing performance of the pipeline connecting part is enhanced, in addition, the first flange, the second flange and the sealing ring are specially designed, the overall attractiveness of the flanges is improved, and the service life of the flanges is prolonged. And impurities such as dust are effectively prevented from entering flange connecting seams after long-time use, adverse effects of the impurities on the sealing gasket are avoided, the aging speed of the sealing gasket is slowed down, and long-term stability and reliability of pipeline connection are guaranteed.

Description

Technical Field

[0001] The utility model relates to the field of pipeline connection, in particular to a pipeline connection flange. Background Art

[0002] Pipelines play an extremely important role in modern society. They play an irreplaceable and important role in resource transportation, industrial production, urban infrastructure and environmental protection. With the continuous advancement of science and technology and the development of society, pipeline technology will continue to innovate and improve, providing safer, more efficient and reliable services for human production and life.

[0003] Pipe connection is the process of connecting two or more sections of pipes together to achieve fluid transportation. Pipe connection flanges are often used for large-diameter, high-pressure pipelines and pipelines that need to be frequently disassembled. Two flanges are connected together by multiple sets of bolts, and a sealing gasket is placed in the middle to ensure sealing. Flange connection has the advantages of high connection strength and easy installation and disassembly.

[0004] An existing flange commonly used for pipe connection has some problems in its actual application process. Usually, this flange mainly relies on multiple sets of bolts to achieve the docking assembly of two flange plates. However, in actual operation, this docking process is extremely cumbersome. Since the two flange plates need to be accurately aligned, otherwise the bolts cannot be installed smoothly, which makes the entire operation process difficult, not only greatly affecting work efficiency, but also consuming a lot of time. Utility Model Content

[0005] Based on this, the purpose of the present invention is to provide a pipeline connecting flange to solve the technical problems mentioned in the above background technology.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a pipe connecting flange, comprising a first flange, a second flange, a sealing gasket, bolts and bolt holes, a guide block fixedly installed at the end of the first flange, and a sealing ring is provided on the inner wall of the first flange, a guide groove is provided at the end of the second flange, an extrusion block is slidably installed at the end of the second flange, and multiple groups of first sliders are fixedly installed at equal angles at the end of the extrusion block, a second slider is provided in the second flange that is slidably connected to the first slider, and a spring connected to the inner wall of the second flange is fixedly installed at the end of the second slider.

[0007] By adopting the above technical solutions, when connecting the pipeline, a significant guiding effect can be exerted, enabling the rapid docking of the first flange and the second flange, allowing for the rapid installation of bolts, significantly improving the working efficiency of pipeline connection. The extrusion block can, by virtue of the extrusion of the guiding block on the second slider, tightly extrude and fit the sealing gasket towards the first flange, strengthening the sealing performance of the pipeline connection part. In addition, the first flange, the second flange, and the sealing ring are specially designed, which not only enhances the overall aesthetic appearance of the flange but also effectively prevents dust and other debris from entering the flange connection seam after long-term use, avoids the adverse effects of debris on the sealing gasket, slows down the aging rate of the sealing gasket, and ensures the long-term stability and reliability of pipeline connection.

[0008] Furthermore, the cross-section of the first flange is designed in a "匚" shape, and the inner diameter of the end ring of the first flange close to the second flange is larger than the outer diameter of the second flange.

[0009] By adopting the above technical solutions, not only is the overall aesthetic appearance of the flange after installation enhanced, but also dust and other debris are effectively prevented from entering the flange connection seam after long-term use, avoiding the adverse effects of debris on the sealing gasket, slowing down the aging rate of the sealing gasket, and ensuring the long-term stability and reliability of pipeline connection.

[0010] Furthermore, the cross-section of the guiding block is designed in an annular shape, and multiple groups of guiding blocks are arranged corresponding to the bolt holes, and the outer corners of the guiding block close to the second flange are designed with inclined surfaces.

[0011] By adopting the above technical solutions, when connecting the pipeline, a significant guiding effect can be exerted, enabling the rapid docking of the first flange and the second flange, allowing for the rapid installation of bolts, significantly improving the working efficiency of pipeline connection.

[0012] Furthermore, the outer wall of the sealing ring is in contact with the inner wall of the end ring of the first flange, and the inner wall of the sealing ring is in contact with the outer wall of the second flange, and the inner corners of the sealing ring close to the second flange are inclined surfaces.

[0013] By adopting the above technical solutions, during installation, the second flange can better enter the first flange, further enhancing the sealing performance.

[0014] Furthermore, multiple groups of guiding grooves are arranged corresponding to the guiding blocks, and the inner wall of the guiding groove is in contact with the outer wall of the guiding block.

[0015] By adopting the above technical solutions, when connecting the pipeline, a significant guiding effect can be exerted, enabling the rapid docking of the first flange and the second flange, allowing for the rapid installation of bolts, significantly improving the working efficiency of pipeline connection.

[0016] Furthermore, the cross section of the extrusion block is designed to be circular, and the extrusion block is located between the inner wall of the second flange and the bolt hole, and the outer wall of the end of the extrusion block is in contact with the outer wall of the sealing gasket.

[0017] By adopting the above technical solution, the sealing gasket is tightly pressed and fitted to the first flange, thereby enhancing the sealing performance of the pipeline connection part.

[0018] Furthermore, the second slider is designed to be L-shaped, and the top of one end of the second slider located in the bolt hole is designed to be inclined, and the inclined surface of the second slider is in contact with the outer wall of the guide block.

[0019] By adopting the above technical solution, the extrusion block can use the extrusion effect of the guide block on the second slider to tightly squeeze the sealing gasket to fit against the first flange, thereby enhancing the sealing performance of the pipeline connection part.

[0020] Furthermore, the cross section of the first slider is fan-shaped, and the end of the first slider in contact with the second slider is inclined, and the second flange is provided with sliding grooves corresponding to the extrusion block, the first slider, the second slider and the spring.

[0021] By adopting the above technical solution, the extrusion block, the first slider, the second slider and the spring can slide in the second flange, so that the extrusion block can use the extrusion effect of the guide block on the second slider to tightly squeeze the sealing gasket to the first flange, thereby enhancing the sealing performance of the pipeline connection part.

[0022] In summary, the present invention has the following beneficial effects:

[0023] The utility model is provided with a guide block and a guide groove, which can play a significant guiding role when the pipe is connected. This design not only greatly facilitates the rapid docking of the first flange and the second flange, but also enables the bolts to be quickly installed, thereby significantly improving the working efficiency of the pipe connection. At the same time, by providing an extrusion block, a first slider, a second slider and a spring, when the connection operation is performed, the extrusion block can use the extrusion effect of the guide block on the second slider to tightly squeeze the sealing gasket to the first flange, further enhancing the sealing performance of the pipe connection part, and effectively avoiding the occurrence of problems such as fluid leakage. In addition, a special design is made for the first flange, the second flange and the sealing ring. This design not only improves the overall aesthetics of the flange after the connection is completed, but also effectively prevents dust and other debris from entering the flange connection seam after long-term use, thereby avoiding the adverse effects of these debris on the sealing gasket, slowing down the aging rate of the sealing gasket, and extending the service life of the sealing gasket, thereby ensuring the long-term stability and reliability of the pipe connection. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0025] Figure 2 This is a schematic diagram of the front-section three-dimensional structure of the utility model;

[0026] Figure 3 This is a schematic diagram of the front-section three-dimensional structure of the utility model from another perspective;

[0027] Figure 4 This is a schematic diagram of the three-dimensional structure of the first flange of the utility model;

[0028] Figure 5 This is a schematic diagram of the three-dimensional structure of the second flange of the utility model;

[0029] Figure 6 This is a schematic side-sectional perspective structural diagram of the second flange of the present invention;

[0030] Figure 7 This is a schematic diagram of the front sectional three-dimensional structure of the second flange of the utility model;

[0031] Figure 8 For this utility model Figure 7 Enlarged view of point A in the middle;

[0032] Figure 9 This is a schematic diagram of the three-dimensional structure of the first slider, the second slider and the spring of the extrusion block of the utility model;

[0033] Figure 10 For this utility model Figure 9 Enlarged view of point B in the middle.

[0034] In the figure: 1. First flange; 2. Second flange; 3. Sealing gasket; 4. Bolt; 5. Bolt hole; 6. Guide block; 7. Sealing ring; 8. Guide groove; 9. Extrusion block; 10. First slider; 11. Second slider; 12. Spring. DETAILED DESCRIPTION

[0035] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. The embodiments described below with reference to the drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0036] The following describes an embodiment of the present invention based on its overall structure.

[0037] A pipe connection flange, such as Figure 1 - Figure 10As shown in the figure, it includes a first flange 1, a second flange 2, a gasket 3, bolts 4 and bolt holes 5. A guiding block 6 is fixedly installed at the end of the first flange 1, and a sealing ring 7 is provided on the inner wall of the first flange 1. A guiding groove 8 is formed at the end of the second flange 2. During the pipeline connection operation, it can play a significant guiding role, enabling the quick docking of the first flange 1 and the second flange 2, allowing the bolts 4 to be quickly installed, significantly improving the working efficiency of pipeline connection. A pressing block 9 is slidably installed at the end of the second flange 2, and a plurality of first sliders 10 are fixedly installed at equal angles at the end of the pressing block 9. A second slider 11 that is slidably connected to the first sliders 10 is provided inside the second flange 2, and a spring 12 connected to the inner wall of the second flange 2 is fixedly installed at the end of the second slider 11. The pressing block 9 can tightly press and fit the gasket 3 against the first flange 1 by means of the extrusion of the guiding block 6 on the second slider 11, strengthening the sealing performance of the pipeline connection part.

[0038] Please refer to Figure 1 - Figure 4 , the cross-section of the first flange 1 is designed in a "C" shape, and the inner diameter of the circular ring of the first flange 1 near the end of the second flange 2 is larger than the outer diameter of the second flange 2, which not only improves the overall aesthetic appearance of the flange after installation, but also effectively prevents dust and other debris from entering the flange connection seam after long-term use, avoids the adverse effects of debris on the gasket 3, slows down the aging speed of the gasket 3, and ensures the long-term stability and reliability of pipeline connection.

[0039] Please refer to Figure 1 - Figure 4 , the cross-section of the guiding block 6 is designed in a circular ring shape, and a plurality of guiding blocks 6 are arranged corresponding to the bolt holes 5, and the outer edge angle of the guiding block 6 near the second flange 2 is designed as an inclined surface. During the pipeline connection operation, it can play a significant guiding role, enabling the quick docking of the first flange 1 and the second flange 2, allowing the bolts 4 to be quickly installed, significantly improving the working efficiency of pipeline connection.

[0040] [[ID=​​​​​​​​​There are multiple groups of guide grooves 8 corresponding to the guide blocks 6, and the inner wall of the guide groove 8 fits the outer wall of the guide block 6. The guide groove 8 and the guide block 6 cooperate with each other, so that when the pipeline is connected, they can play a significant guiding role, realize the rapid docking of the first flange 1 and the second flange 2, and enable the bolts 4 to be quickly installed, significantly improving the efficiency of the pipeline connection work.

[0042] See also Figure 1 - Figure 10 The cross-section of the extrusion block 9 is designed to be circular, and the extrusion block 9 is located between the inner wall of the second flange 2 and the bolt hole 5, and the outer wall of the end of the extrusion block 9 is in contact with the outer wall of the sealing gasket 3, so that the extrusion block 9 can use the extrusion effect of the guide block 6 on the second slider 11 to tightly squeeze the sealing gasket 3 to the first flange 1, thereby enhancing the sealing performance of the pipeline connection part.

[0043] See also Figure 2 - Figure 10 The second slider 11 is designed in an L-shape, and the top of one end of the second slider 11 located in the bolt hole 5 is designed with a slope, and the slope of the second slider 11 fits the outer wall of the guide block 6, so that when the guide block 6 is inserted into the guide groove 8, it contacts the slope of the second slider 11, and can squeeze the second slider 11. The extrusion block 9 can use the extrusion effect of the guide block 6 on the second slider 11 to tightly squeeze the sealing gasket 3 to the first flange 1, thereby enhancing the sealing performance of the pipeline connection part.

[0044] See also Figure 6 - Figure 10 The cross-section of the first slider 10 is fan-shaped, and the end of the first slider 10 in contact with the second slider 11 is inclined. The second flange 2 is provided with a slide groove corresponding to the extrusion block 9, the first slider 10, the second slider 11 and the spring 12, so that the extrusion block 9, the first slider 10, the second slider 11 and the spring 12 can slide in the second flange 2, so that the extrusion block 9 can use the extrusion effect of the guide block 6 on the second slider 11 to tightly squeeze the sealing gasket 3 to the first flange 1, thereby enhancing the sealing performance of the pipeline connection part.

[0045] The working principle of the present invention is as follows: when connecting the pipes, first, the position of the second flange 2 must be carefully adjusted and the sealing gasket 3 must be properly placed. Then, the first flange 1 is slowly moved closer to the second flange 2 until the guide block 6 smoothly enters the guide groove 8. At this time, the installation of multiple sets of bolts 4 can be started. During the tightening process of the bolts 4, the outer walls of the multiple sets of guide blocks 6 will exert pressure on the multiple sets of second sliders 11, and the multiple sets of second sliders 11 will then squeeze the multiple sets of first sliders 10. Under this action, the multiple sets of first sliders 10 will drive the extrusion blocks 9 to move toward one side of the sealing gasket 3, so that the outer wall of the extrusion block 9 can tightly squeeze the sealing gasket 3 to fit the end of the first flange 1. In this way, the sealing of the connection is greatly enhanced. In addition, the inclined surface designed by the sealing ring 7 can facilitate the smooth entry of the second flange 2, and the first flange 1 can completely wrap the second flange 2, which further improves the sealing of the entire connection structure. At this point, the pipe connection work is completed.

[0046] Although embodiments of the present invention have been shown and described, these specific embodiments are merely explanations of the present invention and are not limitations on the present invention. The specific features, structures, materials, or characteristics described may be combined in a suitable manner in any one or more embodiments or examples. After reading this specification, those skilled in the art may make modifications, substitutions, and variations to the embodiments as needed without departing from the principles and purpose of the present invention, but as long as they are within the scope of the claims of the present invention, they are protected by patent law.

Claims

1. A pipe connection flange, comprising a first flange (1), a second flange (2), a sealing gasket (3), bolts (4) and bolt holes (5), characterized in that: A guiding block (6) is fixedly installed at the end of the first flange (1), and a sealing ring (7) is provided on the inner wall of the first flange (1). A guiding groove (8) is formed at the end of the second flange (2). A pressing block (9) is slidably installed at the end of the second flange (2), and a plurality of first sliders (10) are fixedly installed at equal angles at the end of the pressing block (9). A second slider (11) slidably connected to the first sliders (10) is provided in the second flange (2), and a spring (12) connected to the inner wall of the second flange (2) is fixedly installed at the end of the second slider (11).

2. The pipeline connecting flange according to claim 1, characterized in that: The cross-section of the first flange (1) is designed in a "C" shape, and the inner diameter of the ring at the end of the first flange (1) close to the second flange (2) is larger than the outer diameter of the second flange (2).

3. The pipeline connecting flange according to claim 1, characterized in that: The cross-section of the guiding block (6) is designed in a circular ring shape, and a plurality of guiding blocks (6) are provided corresponding to the bolt holes (5). The outer corner at one end of the guiding block (6) close to the second flange (2) is designed in an inclined plane shape.

4. The pipeline connecting flange according to claim 1, characterized in that: The outer wall of the sealing ring (7) is fitted with the inner wall of the ring at the end of the first flange (1), and the inner wall of the sealing ring (7) is fitted with the outer wall of the second flange (2). The inner corner at one end of the sealing ring (7) close to the second flange (2) is in an inclined plane shape.

5. The pipeline connecting flange according to claim 1, characterized in that: A plurality of guiding grooves (8) are provided corresponding to the guiding blocks (6), and the inner wall of the guiding groove (8) is fitted with the outer wall of the guiding block (6).

6. The pipeline connecting flange according to claim 1, characterized in that: The cross-section of the pressing block (9) is designed in a circular ring shape, and the pressing block (9) is located between the inner wall of the second flange (2) and the bolt holes (5). The outer wall at the end of the pressing block (9) is fitted with the outer wall of the gasket (3).

7. The pipeline connecting flange according to claim 1, characterized in that: The second slider (11) is designed in an L shape, and the top at one end of the second slider (11) located in the bolt hole (5) is designed in an inclined plane shape. The inclined plane of the second slider (11) is fitted with the outer wall of the guiding block (6).

8. The pipeline connecting flange according to claim 1, characterized in that: The cross-section of the first slider (10) is designed in a fan shape, and one end of the first slider (10) in contact with the second slider (11) is designed in an inclined plane shape. A sliding groove corresponding to the pressing block (9), the first slider (10), the second slider (11) and the spring (12) is formed in the second flange (2).

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