A corrosion-resistant special-shaped flange

Abstract

This utility model discloses a corrosion-resistant irregular-shaped flange, comprising: a first flange and a second flange, with pipes connected to both sides of the first and second flanges; and a covering assembly, which includes a connecting frame, a square groove, a movable hole, and a movable column. There are two connecting frames, each fixed to the outer surface of one of the two pipes. The square groove is located in the middle of the connecting frame, and the movable holes are located on both sides of the connecting frame, communicating with each other. The movable column slides through the movable hole, and a baffle is fixed in the middle of the movable column, located inside the square groove. A spring is fixed to one side of the baffle, also located inside the square groove. A connecting hole is located at the end of the movable column. The covering film of this utility model, driven by the spring force, tightly wraps around and covers the outer surfaces of the first and second flanges, effectively isolating the flanges from the external environment, protecting the coating on the outer surface of the flanges from external wear, and extending their corrosion resistance life.

Description

Technical Field

[0001] This utility model relates to the field of flange technology, specifically to a corrosion-resistant irregular flange. Background Technology

[0002] A flange, often simply called a flange, is a general term that usually refers to a disc-shaped metal body with several holes around its perimeter for connecting other parts or devices. It is mainly used in machinery. Most flanges on the market are disc-shaped parts, and they are most commonly found in pipeline engineering. When a flange is installed in a pipeline that needs to be connected, it can play a sealing role with the corresponding sealing device. When connecting other parts, it can be fixed to the mounting holes of the disc body with bolts.

[0003] A search revealed Chinese Patent Publication No. CN218845382U, which discloses an industrial gas recovery and conveying pipeline, comprising a first flange and a second flange. The first flange has a fixing hole on its side, and a galvanized bolt is movably connected to the side of the first flange. A galvanized nut is movably connected to one end of each galvanized bolt. The second flange has the same shape and structure as the first flange. A rubber gasket is placed between the first and second flanges. This invention securely connects the first flange, the second flange, and the rubber gasket using galvanized bolts and nuts. The two galvanized bolts and the galvanized nut not only maintain the stability of the connection but also provide a layer of protection for the first and second flanges as galvanized components. This allows the first and second flanges to act as cathodes in an electrochemical cell, enhancing the flanges' corrosion resistance and extending their lifespan.

[0004] The aforementioned utility model addresses the issue that the flange's joints, outer surface, and bolt connections are easily exposed to the external environment. In humid, dusty, or corrosive conditions (such as chemical, marine, and outdoor pipeline environments), moisture, salt spray, dust, and other media can easily seep into the gaps, causing corrosion of the flange body and eroding the anti-corrosion coating on the outer surface. Traditional coatings, without additional protection, are easily damaged by external friction and media erosion, thus losing their corrosion resistance and significantly shortening the flange's service life. Therefore, it is necessary to provide a flange that can effectively isolate the flange from the external environment and improve its service life. Utility Model Content

[0005] The purpose of this utility model is to provide a corrosion-resistant irregular-shaped flange to solve the problems mentioned in the background art. To solve the above technical problems, this utility model is achieved through the following technical solution:

[0006] This utility model relates to a corrosion-resistant irregular-shaped flange, comprising a first flange and a second flange, with pipes connected to both sides of the first flange and the second flange.

[0007] The covering assembly includes a connecting frame, a square groove, a movable hole, and a movable column. There are two connecting frames, which are fixed to the outer surfaces of two pipes respectively. The square groove is opened in the middle of the connecting frame, and the movable hole is opened on both sides of the connecting frame. The square groove and the movable hole are interconnected, and the movable column slides through the interior of the movable hole.

[0008] Furthermore, a sealing gasket is installed at the center of the first flange and the second flange, and the first flange, the second flange and the sealing gasket are fixedly installed by bolts.

[0009] Furthermore, a baffle is fixed in the middle of the movable column, and the baffle is located inside the square groove.

[0010] Furthermore, a spring is fixed to one side of the baffle, and the spring is located inside the square groove, and a connection hole is provided at the end of the movable column.

[0011] Furthermore, a connecting post slides through the inside of the connecting hole, and a covering film penetrates the outer surface of the connecting post, with the covering film in contact with the outer surfaces of the first flange and the second flange.

[0012] Furthermore, it also includes an installation component, which includes a threaded hole, a threaded rod, and a rubber pad. The threaded hole is opened on the upper and lower sides of the connecting frame, the threaded rod is threaded through the threaded hole, and the rubber pad is fixed to one end of the threaded rod.

[0013] Furthermore, the rubber pad contacts the pipe, and a rotating handle is fixed to the other end of the threaded rod.

[0014] This utility model has the following beneficial effects:

[0015] This invention, through the arrangement of a first flange, a second flange, a gasket, and a covering assembly, allows for the following steps: After the first flange, second flange, and gasket are installed, a connecting frame is placed on the pipe. The outer end of the movable column penetrates the connecting column, and the covering film on the outer surface of the connecting column is pulled out. The covering film is then wrapped around the outer surfaces of the first and second flanges. Under the elastic force of a spring, the spring is compressed within a square groove, causing the movable column to move inward, bringing the connecting column closer to the first and second flanges. The covering film then completely covers the first and second flanges. Driven by the elastic force of the spring, the covering film tightly wraps around and covers the outer surfaces of the first and second flanges, effectively isolating the flanges from the external environment, protecting the coating on the outer surface of the flanges from external wear, and extending their corrosion resistance life. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0018] Figure 2 This is a rear view of the three-dimensional structure of this utility model;

[0019] Figure 3 This is an exploded view of the structure of the covering component of this utility model;

[0020] Figure 4 This is an exploded view of the installation component structure of this utility model.

[0021] The attached diagram lists the components represented by each number as follows:

[0022] 11. First flange; 12. Second flange; 13. Gasket;

[0023] 21. Connecting frame; 22. Square groove; 23. Movable hole; 24. Movable column; 25. Baffle; 26. Spring; 27. Connecting hole; 28. Connecting column; 29. ​​Covering film;

[0024] 31. Threaded hole; 32. Threaded rod; 33. Rubber pad; 34. Rotary handle. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] To make the objectives, technical solutions, and advantages of this utility model clearer, the embodiments of this utility model will be described in further detail below with reference to the accompanying drawings.

[0027] Please see Figure 1-4 As shown, this utility model is a corrosion-resistant irregular flange, comprising:

[0028] First flange 11 and second flange 12, with pipes connected to both sides of first flange 11 and second flange 12, and a sealing gasket 13 installed at the center of first flange 11 and second flange 12, and the first flange 11, second flange 12 and sealing gasket 13 are fixedly installed by bolts:

[0029] The first flange 11 and the second flange 12 serve as the core load-bearing components for the pipe connection. They are fixed to the ends of the two pipe sections to be connected, respectively. Through their rigid structure, they achieve alignment and docking of the pipes, providing basic support for the entire connection structure. The sealing gasket 13 is installed between the center mating surfaces of the first flange 11 and the second flange 12. It uses its elastic deformation to fill the tiny gap between the two flanges and prevent the leakage of the medium inside the pipe.

[0030] The covering assembly includes a connecting frame 21, a square groove 22, a movable hole 23, and a movable column 24. There are two connecting frames 21, which are fixed to the outer surfaces of two pipes respectively. The square groove 22 is opened in the middle of the connecting frame 21, and the movable hole 23 is opened on both sides of the connecting frame 21. The square groove 22 and the movable hole 23 are interconnected, and the movable column 24 slides through the interior of the movable hole 23.

[0031] The connecting frame 21 serves as the basic installation structure for the covering component. The two connecting frames 21 are fixed to the outer surfaces of the two pipe sections respectively. The square groove 22 is the accommodating space for the spring 26 and the baffle 25. The movable hole 23 serves as the sliding channel for the movable column 24, guiding the movable column 24 to move axially and ensuring the stability of the movement trajectory of the movable column 24. The movable column 24 can drive the connecting column 28 to move closer to or away from the flange through its own axial movement, thereby tightening the covering film 29 on the outer surface of the flange.

[0032] A baffle 25 is fixed in the middle of the movable column 24 and the baffle 25 is located inside the square groove 22. A spring 26 is fixed on one side of the baffle 25 and the spring 26 is located inside the square groove 22. A connecting hole 27 is opened at the end of the movable column 24. A connecting column 28 slides through the connecting hole 27. A covering film 29 penetrates the outer surface of the connecting column 28 and contacts the outer surfaces of the first flange 11 and the second flange 12.

[0033] The baffle 25 acts as the fulcrum for the spring 26, transmitting the spring force to the movable column 24 and driving the movable column 24 to move axially. The spring 26 provides continuous elastic force through its own elastic deformation. The connecting hole 27 is used to slide through the connecting column 28, allowing the connecting column 28 to be finely adjusted relative to the movable column 24. The connecting column 28 supports and guides the covering film 29. Driven by the movable column 24, the connecting column 28 approaches the flange, tensioning and adhering the covering film 29 to the outer surface of the flange. At the same time, it ensures that the covering film 29 covers all areas without dead corners through its own position adjustment. The covering film 29 isolates the flange's splice gaps, outer surface, and bolt connection parts from the external environment by wrapping, preventing the intrusion of corrosive media such as moisture, salt spray, and dust, and extending the service life of the flange.

[0034] Working principle:

[0035] After the first flange 11, the second flange 12 and the sealing gasket 13 are installed, the connecting frame 21 is placed on the pipe, the outer end of the movable column 24 passes through the connecting column 28, the covering film 29 on the outer surface of the connecting column 28 is pulled out, and the covering film 29 is wrapped around the outer surface of the first flange 11 and the second flange 12. Under the elastic force of the spring 26, the spring 26 is compressed in the square groove 22, and the movable column 24 moves inward, so that the connecting column 28 is close to the first flange 11 and the second flange 12, and the covering film 29 covers the first flange 11 and the second flange 12.

[0036] In this step, the coating film 29 is driven by the elastic force of the spring 26 to tightly wrap around and cover the outer surfaces of the first flange 11 and the second flange 12, which can effectively isolate the flanges from the external environment, protect the coating on the outer surface of the flanges from external wear, and extend their corrosion resistance life.

[0037] Please see Figure 1-4 As shown, this embodiment, based on the above embodiment, further includes:

[0038] The mounting assembly includes a threaded hole 31, a threaded rod 32, and a rubber pad 33. The threaded hole 31 is opened on the upper and lower sides of the connecting frame 21. The threaded rod 32 is threaded through the threaded hole 31. The rubber pad 33 is fixed to one end of the threaded rod 32 and contacts the pipe. The other end of the threaded rod 32 is fixed with a rotating handle 34.

[0039] The threaded hole 31 provides a channel for threaded connection of the threaded rod 32. By engaging with the threaded rod 32, the movement trajectory of the threaded rod 32 is restricted, ensuring that the threaded rod 32 can only rotate and move along the axial direction. One end of the threaded rod 32 is connected to the rubber pad 33, and the other end is fixed with the rotating handle 34. The rubber pad 33 is in contact with the surface of the pipe.

[0040] Working principle:

[0041] When installing the connecting frame 21, rotate the rotating handle 34. The rotating handle 34 drives the threaded rod 32 to rotate in the threaded hole 31. The threaded rod 32 drives the rubber pad 33 to move vertically in the threaded hole 31, so that the rubber pad 33 clamps the pipe. Install the connecting frame 21 on both sides of the first flange 11 and the second flange 12.

[0042] This step not only ensures a tight fit to the pipe surface, enhancing the fixation between the connecting frame 21 and the pipe, but also prevents hard damage to the outer surface of the pipe, protecting the pipe's anti-corrosion coating and other structures.

[0043] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A profiled flange having corrosion resistance, comprising a first flange (11) and a second flange (12), characterized in that, Pipes are connected to both sides of the first flange (11) and the second flange (12): The covering component includes a connecting frame (21), a square groove (22), a movable hole (23), and a movable column (24). There are two connecting frames (21), which are fixed on the outer surfaces of two pipes respectively. The square groove (22) is opened in the middle of the connecting frame (21), and the movable hole (23) is opened on both sides of the connecting frame (21). The square groove (22) and the movable hole (23) are interconnected. The movable column (24) slides through the interior of the movable hole (23).

2. The profiled flange plate with corrosion resistance according to claim 1, characterized in that: A gasket (13) is installed at the center of the first flange (11) and the second flange (12), and the first flange (11), the second flange (12) and the gasket (13) are fixedly installed by bolts.

3. The profiled flange plate with corrosion resistance according to claim 1, characterized in that: A baffle (25) is fixed in the middle of the movable column (24), and the baffle (25) is located inside the square groove (22).

4. The profiled flange plate with corrosion resistance according to claim 3, characterized in that: A spring (26) is fixed on one side of the baffle (25), and the spring (26) is located inside the square groove (22). A connection hole (27) is provided at the end of the movable column (24).

5. A profiled flange according to claim 4, characterised in that: The connecting hole (27) has a connecting post (28) that slides through it. The outer surface of the connecting post (28) is covered with a coating film (29), and the coating film (29) is in contact with the outer surfaces of the first flange (11) and the second flange (12).

6. The profiled flange plate with corrosion resistance according to claim 1, characterized in that: It also includes an installation component, which includes a threaded hole (31), a threaded rod (32), and a rubber pad (33). The threaded hole (31) is opened on the upper and lower sides of the connecting frame (21), the threaded rod (32) is threaded through the threaded hole (31), and the rubber pad (33) is fixed to one end of the threaded rod (32).

7. A profiled flange according to claim 6, characterised in that: The rubber pad (33) is in contact with the pipe, and the other end of the threaded rod (32) is fixed with a rotating handle (34).

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