Positioning flange plate

Abstract

The utility model relates to the technical field of flange plate, especially positioning flange plate convenient to install, including first flange plate, second flange plate and bolt, the first flange plate and second flange plate between common sleeve joint have sealing assembly, the bolt is provided with several, several the bolt left -hand ends all are fixedly connected with conical head, several the outer surface of bolt all are connected with nut threadedly. The positioning flange plate convenient to install, utilize the circular positioning hole and arc positioning hole of annular array and two -two staggered distribution on the first flange plate body and the corresponding circular positioning head and arc positioning head on the second flange plate body, and simultaneously with circular positioning head and circular positioning hole, arc positioning head and arc positioning hole alignment with both hands, once push can complete the preliminary positioning splicing, the whole process is shorter in time, compared with traditional flange plate installation efficiency effective promotion.

Description

Technical Field

[0001] This utility model relates to the field of flange technology, and in particular to a positioning flange that is easy to install. Background Technology

[0002] Flanges are indispensable components in industrial fields such as pipeline connection and equipment assembly, and are widely used in industries such as petrochemicals, power energy, and water supply and drainage engineering. In petrochemical pipeline systems, flanges play a crucial role in connecting pipes of different diameters and materials, and their performance directly affects the sealing and stability of the entire pipeline system.

[0003] However, traditional flanges still have the following problems in actual use: 1. Traditional flanges usually rely on manual alignment of holes. Due to the lack of an effective positioning structure, repeated adjustments are required during installation, which is time-consuming and labor-intensive; 2. Traditional flanges use a single sealing gasket, which has limited sealing performance. When the pressure in the pipeline fluctuates or the temperature of the medium changes, leakage is likely to occur, which not only wastes the medium but also easily causes safety accidents. Therefore, we have introduced a positioning flange that is easy to install. Utility Model Content

[0004] The main objective of this invention is to provide a positioning flange that is easy to install, which can effectively solve the problems in the background art.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0006] An easy-to-install positioning flange includes a first flange, a second flange, and bolts. A sealing assembly is fitted between the first flange and the second flange. Several bolts are provided, and each bolt has a tapered head fixedly connected to its left end. Nuts are threaded onto the outer surface of each bolt.

[0007] Preferably, the first flange includes a first flange body, and a plurality of circular positioning holes and a plurality of arc-shaped positioning holes are opened at the right edge of the first flange body, and a first threaded hole through the inside and outside is opened on the left inner wall surface of the plurality of circular positioning holes.

[0008] Preferably, the second flange includes a second flange body, with a plurality of circular positioning heads and a plurality of arc-shaped positioning heads fixedly connected to the left edge of the second flange body, and a plurality of second threaded holes passing through to the left and right of the right edge of the second flange body.

[0009] Preferably, the plurality of circular positioning holes and the plurality of arc-shaped positioning holes are arranged in a circular array around the center of the first flange body, and the plurality of circular positioning holes and the plurality of arc-shaped positioning holes are arranged in pairs in an alternating pattern.

[0010] By adopting the above technical solution, the circular positioning holes and the arc-shaped positioning holes are arranged in a ring array and are staggered in pairs, so that the circular positioning head and the arc-shaped positioning head of the second flange can quickly correspond to the hole positions of the first flange, which greatly shortens the installation and alignment time.

[0011] Preferably, the second screw holes and the circular positioning heads are distributed in pairs, corresponding to each other on the left and right.

[0012] By adopting the above technical solution, the second screw hole and the circular positioning head are distributed on the left and right sides respectively, so that the bolt can pass through the second screw hole, the circular positioning head and the circular positioning hole in a straight line and be screwed into the first screw hole in one go, without the need for additional angle adjustment, thus shortening the installation time and greatly improving the assembly efficiency.

[0013] Preferably, a plurality of the circular positioning heads are movably fitted into a plurality of corresponding circular positioning holes, and a plurality of the arc-shaped positioning heads are respectively movably fitted into a plurality of corresponding arc-shaped positioning holes.

[0014] By adopting the above technical solution, the circular positioning head and the circular positioning hole, and the arc-shaped positioning head and the arc-shaped positioning hole are correspondingly fitted together to form a dual positioning structure that combines points and surfaces. During installation, the deviation is automatically corrected, effectively avoiding sealing failure and stress concentration problems caused by misalignment of the flange installation.

[0015] Preferably, the sealing assembly includes a central sealing ring, with a first sealing gasket fixedly connected to the left end of the central sealing ring and a second sealing gasket fixedly connected to the right end of the central sealing ring.

[0016] By adopting the above technical solution: the materials of the middle sealing ring, the first sealing gasket, and the second sealing gasket are all "nitrile rubber", which has excellent oil resistance and wear resistance, can effectively resist the erosion of oily media such as fuel and lubricating oil, and maintains good elasticity in the temperature range of -40℃ to 120℃.

[0017] Preferably, the central sealing ring is located between the first flange body and the second flange body, the first sealing gasket is movably fitted inside the first flange body, and the second sealing gasket is movably fitted inside the second flange body.

[0018] By adopting the above technical solution: the central sealing ring fills the gap between the first flange body and the second flange body, and the first sealing gasket and the second sealing gasket are tightly fitted with the corresponding first flange body and the second flange body, respectively, to form a three-dimensional sealing structure, preventing the medium from leaking from the edge and side wall, and improving the sealing reliability.

[0019] Preferably, the outer surfaces of the bolts are threaded to the inner walls of the corresponding second screw holes and extend through the corresponding circular positioning heads and the corresponding circular positioning holes into the corresponding first screw holes.

[0020] By adopting the above technical solution, the bolts sequentially pass through the second screw hole, the circular positioning head, and the circular positioning hole and are screwed into the first screw hole, forming a coaxial multi-constraint structure, so that the first flange body and the second flange body are reliably locked in both the axial and radial directions.

[0021] Compared with the prior art, the present invention has the following beneficial effects:

[0022] 1. In this utility model, during installation, first take out the sealing component, align the central sealing ring with the first flange body, and smoothly put the first sealing gasket into the first flange body. Then, bring the second flange body closer so that the second sealing gasket is put into the second flange body, thus completing the installation of the sealing component. Next, using the circular positioning holes and arc-shaped positioning holes arranged in a ring array on the first flange body and the corresponding circular positioning head and arc-shaped positioning head on the second flange body, align the circular positioning head with the circular positioning hole and the arc-shaped positioning head with the arc-shaped positioning hole with both hands at the same time, and push once to complete the initial positioning and splicing. The whole process takes less time and effectively improves the installation efficiency compared to traditional flanges.

[0023] 2. In this utility model, the central sealing ring of the sealing component, together with the first sealing gasket and the second sealing gasket at the left and right ends, forms a triple sealing structure. After installation, the first sealing gasket is tightly fitted to the inside of the first flange body, the second sealing gasket is tightly fitted to the inside of the second flange body, and the central sealing ring fills the gap between the first flange body and the second flange body. It can withstand high pressure without leakage and maintain good sealing performance, effectively solving the problem of traditional flange seal failure. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the overall structure of a positioning flange that is easy to install according to this utility model;

[0025] Figure 2 This is an exploded view of the structure of a positioning flange that is easy to install according to this utility model;

[0026] Figure 3 This is a schematic diagram of the structure of the first flange of the positioning flange of this utility model, which is easy to install;

[0027] Figure 4 This is a left view of the structure of the first flange of the positioning flange of this utility model, which is easy to install;

[0028] Figure 5This is a schematic diagram of the structure of the second flange of the positioning flange that is easy to install according to this utility model;

[0029] Figure 6 The left view shows the structure of the second flange of the positioning flange of this utility model, which is easy to install.

[0030] Figure 7 This is a schematic diagram of the sealing assembly of a positioning flange that is easy to install according to this utility model.

[0031] In the diagram: 1. First flange; 2. Second flange; 3. Sealing assembly; 4. Bolt; 5. Tapered head; 6. Nut; 11. First flange body; 12. Circular locating hole; 13. Arc-shaped locating hole; 14. First screw hole; 21. Second flange body; 22. Circular locating head; 23. Arc-shaped locating head; 24. Second screw hole; 31. Central sealing ring; 32. First gasket; 33. Second gasket. Detailed Implementation

[0032] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0033] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element 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. In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0034] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," and "connected," etc., should be interpreted broadly. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0035] Please see Figure 1-7 This utility model provides a technical solution:

[0036] An easy-to-install positioning flange includes a first flange 1, a second flange 2, and bolts 4. A sealing assembly 3 is fitted between the first flange 1 and the second flange 2. Several bolts 4 are provided, and a tapered head 5 is fixedly connected to the left end of each bolt 4. Nuts 6 are threaded onto the outer surface of each bolt 4.

[0037] In this embodiment, the first flange 1 includes a first flange body 11. A plurality of circular positioning holes 12 and a plurality of arc-shaped positioning holes 13 are formed at the right edge of the first flange body 11. Each of the circular positioning holes 12 has a through-hole 14 on its left inner wall. The second flange 2 includes a second flange body 21. A plurality of circular positioning heads 22 and a plurality of arc-shaped positioning heads 23 are fixedly connected to the left edge of the second flange body 21. A plurality of through-holes 24 are formed at the right edge of the second flange body 21. The circular positioning holes 12 and the arc-shaped positioning holes 13 are arranged in a circular array around the center of the first flange body 11, and are staggered in pairs. The through-holes 24 and the circular positioning heads 22 are arranged in pairs, corresponding to each other on the left and right. The flange assembly 3 includes a central sealing ring 31, with a first sealing gasket 32 ​​fixedly connected to the left end of the central sealing ring 31 and a second sealing gasket 33 fixedly connected to the right end of the central sealing ring 31. The central sealing ring 31 is located between the first flange body 11 and the second flange body 21. The first sealing gasket 32 ​​is movably fitted inside the first flange body 11, and the second sealing gasket 33 is movably fitted inside the second flange body 21. The outer surfaces of several bolts 4 are threaded to the inner walls of several corresponding second screw holes 24 and extend through several corresponding circular positioning heads 22 and several corresponding circular positioning holes 12 to several corresponding first screw holes 14.

[0038] It should be noted that this utility model is a positioning flange that is easy to install. During installation, take out the sealing component 3, align the central sealing ring 31 with the first flange body 11, and smoothly put the first sealing gasket 32 ​​into the first flange body 11. Hold the second flange body 21 and slowly approach the first flange body 11 with the first sealing gasket 32 ​​already in place, so that the second sealing gasket 33 is accurately put into the second flange body 21. At this time, the central sealing ring 31 is exactly located between the first flange body 11 and the second flange body 21, and the first sealing gasket 32 ​​is tightly attached to the inside of the first flange body 11. Observe the circular positioning holes 12 and arc-shaped positioning holes 13 arranged in a ring array and staggered in pairs on the first flange body 11, and the corresponding circular positioning heads 22 and arc-shaped positioning heads 23 on the second flange body 21. Hold the first flange 1 and the second flange 2 with both hands respectively, and align the circular positioning heads 22 one by one with the circular positioning holes 12. Simultaneously, align the arc-shaped positioning head 23 with the corresponding arc-shaped positioning hole 13, and slowly push it so that the circular positioning head 22 is fully inserted into the circular positioning hole 12, and the arc-shaped positioning head 23 is fully inserted into the arc-shaped positioning hole 13, completing the initial positioning and splicing of the first flange 1 and the second flange 2. Pick up the bolt 4 with the tapered head 5, align the outer surface of the bolt 4 with the second screw hole 24, and let the bolt 4 pass through the second screw hole 24, the circular positioning head 22 and the circular positioning hole 12 in sequence until the threaded part of the bolt 4 extends into the first screw hole 14. In the same way, pass all the bolts 4 through the corresponding holes. On the part of each bolt 4 that extends out of the first screw hole 14, screw on the nut 6. Using a wrench or other suitable tool, rotate the nut 6 clockwise evenly in diagonal order to tighten it gradually. Repeat this operation to ensure that each bolt 4 is tightened in place, so that the first flange 1 and the second flange 2 are tightly connected and achieve a stable installation effect.

[0039] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A positioning flange plate for easy installation, comprising a first flange plate (1), a second flange plate (2) and bolts (4), characterized in that: A sealing assembly (3) is fitted together between the first flange (1) and the second flange (2). Several bolts (4) are provided, and a tapered head (5) is fixedly connected to the left end of each bolt (4). Nuts (6) are threaded onto the outer surface of each bolt (4). The first flange (1) includes a first flange body (11). Several circular positioning holes (12) and several arc-shaped positioning holes (13) are opened at the right edge of the first flange body (11). The left inner wall surface of several circular positioning holes (12) is provided with a first threaded hole (14) that passes through both inside and outside. The second flange (2) includes a second flange body (21). Several circular positioning heads (22) and several arc-shaped positioning heads (23) are fixedly connected to the left edge of the second flange body (21). Several second threaded holes (24) are opened at the right edge of the second flange body (21).

2. The positioning flange for easy installation according to claim 1, characterized in that: The circular positioning holes (12) and the arc-shaped positioning holes (13) are arranged in a circular array around the center of the first flange body (11), and the circular positioning holes (12) and the arc-shaped positioning holes (13) are arranged in pairs.

3. The positioning flange for easy installation according to claim 1, characterized in that: Several second screw holes (24) and several circular positioning heads (22) are distributed in pairs, corresponding to each other on the left and right.

4. The positioning flange for easy installation according to claim 1, characterized in that: Several circular positioning heads (22) are movably fitted into several corresponding circular positioning holes (12), and several arc-shaped positioning heads (23) are movably fitted into several corresponding arc-shaped positioning holes (13).

5. A positioning flange for easy installation according to claim 1, characterized in that: The sealing assembly (3) includes a central sealing ring (31), with a first sealing gasket (32) fixedly connected to the left end of the central sealing ring (31) and a second sealing gasket (33) fixedly connected to the right end of the central sealing ring (31).

6. A positioning flange for easy installation according to claim 5, characterized in that: The central sealing ring (31) is located between the first flange body (11) and the second flange body (21). The first sealing gasket (32) is movably fitted inside the first flange body (11), and the second sealing gasket (33) is movably fitted inside the second flange body (21).

7. The positioning flange for easy installation according to claim 1, characterized in that: The outer surfaces of several bolts (4) are threaded to the inner walls of several corresponding second screw holes (24) and extend through several corresponding circular positioning heads (22) and several corresponding circular positioning holes (12) into several corresponding first screw holes (14).

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