Multi-functional flange plate

Abstract

The utility model discloses a kind of multi-functional flange sheet, it includes flange body (1) and several ear plate components (2);The flange body (1) is evenly distributed with not less than four main bolt holes (3);Every ear plate component (2) includes connecting portion (5) and adjusting portion (6), the connecting portion (5) is the arc plate that ear plate component (2) and flange body (1) outer edge radian match;The adjusting portion (6) is the extension plate perpendicular to connecting portion (5), adjusting hole (7) is opened on it, and adjusting hole (7) is circular or oval.

Description

Technical Field

[0001] This utility model belongs to the field of mechanical technology, specifically relating to a multifunctional flange. Background Technology

[0002] A flange, also called a flange plate or flange sheet, is a component used to connect pipes to each other or valves, attached to the end of the pipe. Flanges have bolt holes for securing two flanges together with bolts. A gasket (flange gasket) is typically used to seal between flanges.

[0003] Currently, during use, it has been found that when welding flanges to pipes, one flange is welded to the pipe first, and then the other flange is welded to the pipe after aligning its position and bolt holes with the first flange. This alignment process is quite cumbersome and requires alignment tools, such as laser alignment tools. When valves or flexible connections are installed between the two flanges, disassembling the valve or flexible connection is difficult when replacing it, requiring tools such as screwdrivers and pry bars. When installing a new valve, the distance between the two flanges must be increased to allow the valve to be installed.

[0004] Alignment is a difficult process when welding flanges. If alignment is not done correctly, bolt installation will also be difficult, and if the bolts cannot be installed, the flange must be cut off and re-welded. When replacing valves or other components between two flanges, the pipes may deform when the valves are removed, reducing the distance between the two flanges. Installing the new valve is laborious, and the use of tools may damage the flange plates or rubber gaskets.

[0005] This utility model is proposed for this purpose. Utility Model Content

[0006] This invention provides a method to add a pair of ears to a flange without altering its overall structure. Bolt holes are provided on these ears. The flange is then secured to the pipe using bolts through these holes, allowing for direct welding and eliminating the need for alignment during welding. Furthermore, the bolt holes on the flange ears can be used to adjust the distance between the two flanges during valve assembly and disassembly, simplifying the process. The invention also enables quick alignment during flange welding, reducing installation time and minimizing working time during valve assembly and disassembly.

[0007] The technical solution of this utility model is as follows:

[0008] A multifunctional flange includes a flange body 1 and several ear plate assemblies 2; the flange body 1 has at least four main bolt holes 3 evenly distributed; each ear plate assembly 2 includes a connecting part 5 and an adjusting part 6, the connecting part 5 being an arc-shaped plate whose curvature matches the outer edge of the flange body 1; the adjusting part 6 is an extension plate perpendicular to the connecting part 5, and an adjusting hole 7 is provided on it, the adjusting hole 7 being circular or elliptical.

[0009] Preferably, there are two ear plate assemblies 2, which are symmetrically arranged on both sides of the flange body 1.

[0010] Preferably, the adjustment hole 7 is elliptical, with the major axis of the ellipse aligned with the axis of the flange body 1, and the inner wall of the adjustment hole 7 is provided with a threaded structure.

[0011] Preferably, the connecting part 5 is a connection formed by welding between the flange body 1 and the ear plate assembly 2; wherein the welding bevel angle is 30°±5°, and the weld height is not less than 0.8 times the wall thickness of the flange body 1.

[0012] Preferably, a stress relief groove 10 is provided at the welded joint; the stress relief groove 10 is an arc-shaped groove with a radius of 2-5mm and a depth of 20%-30% of the wall thickness of the flange body 1.

[0013] Preferably, an annular groove 12 is provided on the sealing surface 11 of the flange body 1; a metal spiral wound gasket 13 is embedded in the annular groove 12; the metal spiral wound gasket 13 is annular, and its cross-section along the axial direction is a V-shaped structure; the included angle of the V-shape is 60°±5°.

[0014] The beneficial effects of this utility model are:

[0015] This utility model discloses a multifunctional flange that, without altering the overall flange structure, adds a pair of ear plate assemblies with bolt adjustment holes. The flange is fixed to the pipeline using these bolt adjustment holes, allowing for direct welding and eliminating the need for alignment during welding. Furthermore, the bolt adjustment holes on the ear plate assemblies can be used to adjust the distance between the two flanges, simplifying valve assembly and disassembly.

[0016] Furthermore, the multifunctional flange of this invention features a stress-relieving groove at the connection between the flange body and the ear plate assembly, ensuring a tight connection between the ear plate assembly and the flange body. An annular groove is provided on the sealing surface of the flange body; a metal spiral wound gasket is embedded within the annular groove, guaranteeing a seal between the two flange bodies. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of the multifunctional flange of this utility model.

[0018] Figure 2 This is a perspective view of the multifunctional flange ear plate assembly of this utility model.

[0019] Figure 3 This is a three-dimensional view of the metal spiral wound gasket used in this application.

[0020] The attached figures are labeled as follows: 1. Flange body; 2. Ear plate assembly; 3. Main bolt hole; 5. Connection part; 6. Adjustment part; 10. Release groove; 11. Sealing surface; 12. Annular groove; 13. Metal spiral wound gasket. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without inventive effort are within the scope of protection of this utility model.

[0022] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0023] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," "fixing," and "adhesion," etc., should be interpreted broadly. For example, they can refer to a connection, a detachable connection, or an integral part. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0024] In this specification, the illustrative expressions of the terms used above should not be construed as necessarily referring to the same embodiments or examples. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, those skilled in the art can combine and integrate the different embodiments or examples described in this specification.

[0025] like Figure 1 As shown, this utility model discloses a multifunctional flange, comprising a flange body 1 and two ear plate assemblies 2. The flange body 1 has six main bolt holes 3 evenly distributed throughout. Each ear plate assembly 2 includes a connecting portion 5 and an adjusting portion 6. The connecting portion 5 is an arc-shaped plate whose curvature matches the outer edge curvature of the ear plate assembly 2 and the flange body 1. The adjusting portion 6 is an extension plate perpendicular to the connecting portion 5, and has an adjusting hole 7, which is elliptical in shape. The major axis of the adjusting hole 7 is aligned with the axis of the flange body 1, and the inner wall of the adjusting hole 7 is threaded. The two ear plate assemblies 2 are symmetrically arranged on both sides of the flange body 1.

[0026] like Figure 2 As shown, the connecting part 5 is a connection formed by welding between the flange body 1 and the ear plate assembly 2; wherein, the welding bevel angle is 30°±5°, and the weld height is not less than 0.8 times the wall thickness of the flange body 1. A stress relief groove 10 is provided at the weld joint; the stress relief groove 10 is an arc-shaped groove with a radius of 2-5mm, and its depth is 20%-30% of the wall thickness of the flange body 1.

[0027] An annular groove 12 is provided on the sealing surface 11 of the flange body 1; a metal spiral wound gasket 13 is embedded in the annular groove 12, such as... Figure 3 As shown; the metal spiral wound gasket 13 is annular, and its cross-section along the axial direction is a V-shaped structure; the included angle of the V-shape is 60°.

[0028] This utility model discloses a multifunctional flange that, without altering the overall flange structure, adds a pair of ear plate assemblies with bolt adjustment holes. The flange is fixed to the pipeline using these bolt adjustment holes, allowing for direct welding and eliminating the need for alignment during welding. Furthermore, the bolt adjustment holes on the ear plate assemblies can be used to adjust the distance between the two flanges, simplifying valve assembly and disassembly.

[0029] Furthermore, the multifunctional flange of this invention features a stress-relieving groove at the connection between the flange body and the ear plate assembly, ensuring a tight connection between the ear plate assembly and the flange body. An annular groove is provided on the sealing surface of the flange body; a metal spiral wound gasket is embedded within the annular groove, guaranteeing a seal between the two flange bodies.

[0030] The above embodiments are not intended to limit the present invention, nor is the present invention limited to the examples described above. Any changes, modifications, additions, or substitutions made by those skilled in the art within the scope of the present invention are also within the protection scope of the present invention.

Claims

1. A multifunctional flange, characterized in that, It includes a flange body (1) and several ear plate assemblies (2); the flange body (1) has at least four main bolt holes (3) evenly distributed; each ear plate assembly (2) includes a connecting part (5) and an adjusting part (6), the connecting part (5) is an arc plate that matches the outer edge curvature of the ear plate assembly (2) and the flange body (1); the adjusting part (6) is an extension plate perpendicular to the connecting part (5), and an adjusting hole (7) is provided on it, the adjusting hole (7) is circular or elliptical.

2. The multifunctional flange according to claim 1, characterized in that, There are two ear plate assemblies (2), which are symmetrically arranged on both sides of the flange body (1).

3. The multifunctional flange according to claim 1, characterized in that, The adjustment hole (7) is elliptical, and the major axis of the ellipse is aligned with the axis of the flange body (1). The inner wall of the adjustment hole (7) is provided with a threaded structure.

4. The multifunctional flange according to claim 1, characterized in that, The connection part (5) is a connection formed by welding between the flange body (1) and the ear plate assembly (2); wherein the welding bevel angle is 30°±5° and the weld height is not less than 0.8 times the wall thickness of the flange body (1).

5. The multifunctional flange according to claim 4, characterized in that, A stress relief groove (10) is provided at the welded joint; the stress relief groove (10) is an arc-shaped groove with a radius of 2-5mm and a depth of 20%-30% of the wall thickness of the flange body (1).

6. The multifunctional flange according to claim 1, characterized in that, An annular groove (12) is provided on the sealing surface (11) of the flange body (1); a metal spiral wound gasket (13) is embedded in the annular groove (12); the metal spiral wound gasket (13) is annular, and its cross section along the axial direction is a V-shaped structure; the included angle of the V-shape is α=60°±5°.

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