Convex necked butt welded flange

Abstract

This utility model provides a convex-face weld neck flange, which includes a flange body, a flange block, a clamping mechanism, and a fixing mechanism. The flange block and flange neck are integrally formed. The flange block has a threaded hole and a rotating shaft is installed on the flange block. The rotating shaft is connected to the clamping mechanism, and the clamping mechanism is connected to the fixing mechanism. A pressure rod is installed in the flange block. This utility model uses a knob to rotate the threaded rod, thereby moving the clamping plate to clamp the pipe. This fixes the pipe during welding, which is beneficial for better welding. The limiting plate can limit the position of the flange blocks when they are connected to each other, reducing the possibility of misalignment between flanges and misalignment of the threaded holes.

Description

Technical Field

[0001] This utility model relates to the field of flange technology, specifically a convex-faced welding flange with neck. Background Technology

[0002] Flanges are connecting parts between shafts, used for connecting pipe ends; they can also be used for equipment inlets and outlets to connect two pieces of equipment. According to existing technology, such as the convex face necked welding flange disclosed in Chinese patent document CN222163949U, when water flows through it, the impact force of the water flow will push the blades to rotate. When the blades rotate, the rotating rod drives the bearing to rotate, the bearing rotates and the rotating rod rotates, the rotating rod rotates and drives the first connecting rod to rotate, the first connecting rod rotates and drives the second connecting rod to rotate, the second connecting rod rotates and drives the mounting plate to rotate, and the mounting plate rotates and drives the cleaning brush to clean the surface of the filter screen, avoiding the situation where a small amount of debris can block the filter holes and the whole thing needs to be disassembled and cleaned.

[0003] According to its publicly available technical solutions, in the existing technology, when connecting pipes and neck flanges, welding time may be wasted due to misalignment between the pipe and the neck, or welding misalignment may occur, resulting in welding errors. Utility Model Content

[0004] To address the shortcomings of existing technologies, the purpose of this invention is to provide a convex-face weld neck flange to solve the problems mentioned in the background. This invention uses a knob to rotate a threaded rod, which in turn moves a clamping plate to clamp the pipe, thus fixing the pipe during welding and facilitating better welding. A limiting plate further limits the flange blocks, ensuring their position is controlled when they are connected, reducing misalignment between flanges and preventing misalignment of threaded holes.

[0005] To achieve the above objectives, this utility model is implemented through the following technical solution: a convex-faced necked welding flange, comprising a flange body, the flange body comprising a flange block, a clamping mechanism and a fixing mechanism, the flange block being integrally formed with the flange neck, the flange block being provided with a threaded hole, the flange block being mounted with a rotating shaft, the rotating shaft being connected to the clamping mechanism, the clamping mechanism being connected to the fixing mechanism, and a pressure rod being installed in the flange block.

[0006] Furthermore, the clamping mechanism includes a rotating plate and a threaded rod, a connecting plate is welded to the rotating plate, and a magnetic block is embedded at one end of the connecting plate.

[0007] Furthermore, the rotating plate is threadedly connected to the threaded rod, one end of the threaded rod is connected to the knob, and a clamping plate is welded to the other end of the threaded rod.

[0008] Furthermore, one end of the rotating plate is connected to a rotating shaft, and the rotating plate is connected to a flange block via the rotating shaft.

[0009] Furthermore, the fixing mechanism includes a limiting plate and a threaded rod II. The limiting plate is welded to the rotating plate, and a moving groove is provided on the limiting plate. The threaded rod II is installed in the moving groove.

[0010] Furthermore, a second bevel gear is welded to one end of the second threaded rod, the second bevel gear being connected to the first bevel gear, and the first bevel gear being connected to the rotating disk.

[0011] Furthermore, a threaded sleeve is fitted onto the threaded rod two, and the threaded sleeve passes through the moving groove and is welded to the moving block.

[0012] Furthermore, the pressure rod is welded to the pressure plate, the pressure plate is installed in the flange block, and the bottom of the pressure plate is connected to the rubber ring.

[0013] The beneficial effects of this utility model are:

[0014] 1. This convex-face weld neck flange rotates by turning the knob, which in turn rotates the threaded rod, thereby moving the clamping plate to clamp the pipe. This fixes the pipe during welding, which is beneficial for better pipe welding.

[0015] 2. This convex-face weld neck flange can limit the flange blocks through the limiting plate, thereby limiting the position of the flange blocks when they are connected to each other, reducing the misalignment between flanges and the resulting misalignment of threaded holes. After that, the flanges can be fixed together, which helps to connect the flanges. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the external structure of a convex-faced necked welding flange according to the present invention.

[0017] Figure 2 This is a schematic diagram of the rotating rod structure of a convex-faced necked butt-welding flange according to the present invention;

[0018] Figure 3 This is a schematic diagram of the rubber ring structure of a convex-faced necked welding flange according to the present invention;

[0019] Figure 4 This is a schematic diagram of the internal structure of a convex-faced necked welding flange according to the present invention;

[0020] Figure 5 for Figure 4 Enlarged view of the structure at point A in the middle;

[0021] In the diagram: 1. Flange block; 2. Flange neck; 3. Clamping mechanism; 4. Fixing mechanism; 5. Pressure rod; 6. Threaded hole; 7. Rotating disk; 8. Connecting plate; 9. Magnetic block; 10. Clamping plate; 11. Rotating shaft; 12. Knob; 13. Moving block; 14. Moving groove; 15. Threaded sleeve; 16. Pressure plate; 17. Rubber ring; 18. Threaded rod one; 19. Rotating plate; 20. Limiting plate; 21. Bevel gear one; 22. Bevel gear two; 23. Threaded rod two. Detailed Implementation

[0022] 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.

[0023] Please see Figures 1 to 5 This utility model provides the following technical solution: a convex-face weld neck flange, comprising a flange body, the flange body including a flange block 1, a clamping mechanism 3, and a fixing mechanism 4. The flange block 1 and the flange neck 2 are integrally formed. The flange block 1 is provided with a threaded hole 6. A rotating shaft 11 is installed on the flange block 1. The rotating shaft 11 is connected to the clamping mechanism 3. The clamping mechanism 3 is connected to the fixing mechanism 4. A pressure rod 5 is installed in the flange block 1. In use, after aligning the pipe with the flange neck 2, the pipe is fixed by the clamping mechanism 3 to restrict pipe movement and facilitate subsequent welding. When flanges are connected to each other, the flanges can be limited by a limiting plate 20 to reduce misalignment between flanges, which could lead to misalignment of the threaded hole 6. Then, the flanges can be fixed to assist in the connection between flanges.

[0024] In this embodiment, the clamping mechanism 3 includes a rotating plate 19 and a threaded rod 18. A connecting plate 8 is welded to the rotating plate 19, and a magnetic block 9 is embedded in one end of the connecting plate 8. The rotating plate 19 is threadedly connected to the threaded rod 18. One end of the threaded rod 18 is connected to a knob 12, and a clamping plate 10 is welded to the other end of the threaded rod 18. One end of the rotating plate 19 is connected to a rotating shaft 11, and the rotating plate 19 is connected to a flange block 1 via the rotating shaft 11. In use, the connecting plate 8 is connected to the connecting plate 18. The magnetic block 9 is connected to the flange neck 2, thereby fixing the rotating plate 19 through the connecting plate 8. Then, the pipe can be aligned with the flange neck 2. Turn the knob 12 to make the threaded rod 18 rotate. When the threaded rod 18 rotates, it will move laterally, thereby moving the clamping plate 10 to contact the pipe and clamp the pipe. This fixes the pipe during welding, reduces the possibility of pipe displacement during welding, and facilitates better pipe welding.

[0025] In this embodiment, the fixing mechanism 4 includes a limiting plate 20 and a threaded rod 23. The limiting plate 20 is welded to the rotating plate 19. A moving groove 14 is provided on the limiting plate 20, and the threaded rod 23 is installed in the moving groove 14. A bevel gear 22 is welded to one end of the threaded rod 23. The bevel gear 22 is connected to a bevel gear 21, and the bevel gear 21 is connected to the rotating disk 7. A threaded sleeve 15 is fitted onto the threaded rod 23. The threaded sleeve 15 passes through the moving groove 14 and is welded to the moving block 13. The pressure rod 5 is welded to the pressure plate 16. The pressure plate 16 is installed in the flange block 1, and the bottom of the pressure plate 16 is connected to the rubber ring 17. When it is necessary to connect two flanges, the two flanges can be joined together first, so that the rotating plate 19 rotates 90 degrees through the rotating shaft 11, so that the rotating plate 19 drives the limiting plate 20 to rotate, so that the limiting plate 20 limits the two flanges. To reduce the risk of flange displacement during connection, preventing misalignment of flange blocks 1 and consequently misalignment of the threaded holes 6 between flanges, the limiting plate 20 limits flange blocks 1, aligning the threaded holes 6 between flanges. Then, the rotating disk 7 drives bevel gear 1 21 to rotate, which in turn drives bevel gear 22 to rotate, which in turn drives threaded rod 23 to rotate. Threaded rod 23 then moves moving block 13 to fix the flanges, thus securing them for subsequent connection. As the rotating plate 19 rotates, it presses down pressure rod 5, which in turn presses down pressure plate 16, which in turn presses down rubber ring 17, ensuring tight contact between rubber ring 17 and the other flange. This further seals the connection between the flanges, enhancing the sealing effect.

[0026] Working principle: In use, after aligning the pipe with the flange neck 2, connect the connecting plate 8 to the flange neck 2 via the magnetic block 9, thereby fixing the rotating plate 19 through the connecting plate 8. Then, align the pipe with the flange neck 2 and turn the knob 12, causing the threaded rod 18 to rotate. When the threaded rod 18 rotates, it moves laterally, thereby moving the clamping plate 10 to contact the pipe and clamp it. This fixes the pipe during welding, reducing pipe displacement and facilitating better welding.

[0027] When connecting two flanges, first align the two flanges together, then rotate the rotating plate 19 90 degrees via the rotating shaft 11. This causes the rotating plate 19 to rotate the limiting plate 20, which limits the movement of the two flanges. This reduces the risk of flange displacement during connection, preventing misalignment of the flange blocks 1 and consequently, misalignment of the threaded holes 6 between the flanges. After the limiting plate 20 limits the flange blocks 1, the threaded holes 6 between the flanges can be aligned. Then, operate the rotating disk 7 to... The rotating bevel gear 21 drives the rotating bevel gear 22, which in turn drives the rotating threaded rod 23. The threaded rod 23 then moves the moving block 13 to fix the flange in place, facilitating subsequent connection between the two flanges. When the rotating plate 19 rotates, it presses down the pressure rod 5, which in turn presses down the pressure plate 16. The pressure plate 16 then presses down the rubber ring 17, ensuring tight contact between the rubber ring 17 and the other flange. This further seals the connection between the flanges, enhancing the sealing effect.

[0028] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. It is obvious to those skilled in the art that this utility model is not limited to the details of the above exemplary embodiments, and that it can be implemented in other specific forms without departing from the spirit or basic characteristics of this utility model.

[0029] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A convex-face weld neck flange, comprising a flange body, characterized in that: The flange body includes a flange block (1), a clamping mechanism (3) and a fixing mechanism (4). The flange block (1) and the flange neck (2) are integrally formed. The flange block (1) is provided with a threaded hole (6). A rotating shaft (11) is installed on the flange block (1). The rotating shaft (11) is connected to the clamping mechanism (3). The clamping mechanism (3) is connected to the fixing mechanism (4). A pressure rod (5) is installed in the flange block (1).

2. The convex-face weld neck flange according to claim 1, characterized in that: The clamping mechanism (3) includes a rotating plate (19) and a threaded rod (18). A connecting plate (8) is welded on the rotating plate (19), and a magnetic block (9) is embedded at one end of the connecting plate (8).

3. A convex-face weld neck flange according to claim 2, characterized in that: The rotating plate (19) is threadedly connected to the threaded rod (18), one end of the threaded rod (18) is connected to the knob (12), and a clamping plate (10) is welded to the other end of the threaded rod (18).

4. A convex-face weld neck flange according to claim 3, characterized in that: One end of the rotating plate (19) is connected to the rotating shaft (11), and the rotating plate (19) is connected to the flange block (1) through the rotating shaft (11).

5. A convex-face weld neck flange according to claim 1, characterized in that: The fixing mechanism (4) includes a limiting plate (20) and a threaded rod (23). The limiting plate (20) is welded to the rotating plate (19). A moving groove (14) is provided on the limiting plate (20), and the threaded rod (23) is installed in the moving groove (14).

6. A convex-face weld neck flange according to claim 5, characterized in that: One end of the threaded rod (23) is welded with a bevel gear (22), which is connected to a bevel gear (21), and the bevel gear (21) is connected to the rotating disk (7).

7. A convex-face weld neck flange according to claim 6, characterized in that: A threaded sleeve (15) is fitted onto the threaded rod (23), and the threaded sleeve (15) passes through the moving groove (14) and is welded to the moving block (13).

8. A convex-face weld neck flange according to claim 1, characterized in that: The pressure rod (5) is welded to the pressure plate (16), the pressure plate (16) is installed in the flange block (1), and the bottom of the pressure plate (16) is connected to the rubber ring (17).

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