Adjustable forged flange for multi-caliber pipe fitting

Abstract

The utility model relates to flange design technical field discloses a adjustable forging flange of multi -caliber pipeline adaptation, including flange, the axial keyway of flange top side is opened, the inside of keyway is provided with the mounting ring, the keyway can prevent inside mounting ring and rotate, the top side of flange is provided with the fixed ring, the bottom side of fixed ring, the middle end of flange top side is opened with spring groove, the inside of spring groove is provided with the reinforcing ring, to be used for reinforcing the connection between fixed ring and mounting ring. In the utility model, according to the caliber of the pipeline to be installed, the key shaft with the corresponding size pipeline adaptation hole is assembled, the whole set of connecting structure does not need to be replaced, the adaptation ability of different specifications pipeline is greatly improved, the equipment adaptation cost is reduced, and the diversified pipeline connection demand is satisfied.

Description

Technical Field

[0001] This utility model relates to the field of flange design technology, and in particular to an adjustable forged flange adapted to multi-diameter pipes. Background Technology

[0002] In pipeline system installation and connection, forged flanges are core components that ensure the sealing performance and structural stability of pipelines, and are widely used in various fields such as chemical, water conservancy, and construction. Pipeline diameters vary significantly in different scenarios, requiring flanges to achieve precise fit with the corresponding pipe diameter while possessing robust connection performance to prevent media leakage or structural loosening.

[0003] Existing forged flanges have two major drawbacks: First, poor compatibility with multiple diameters. Traditional flanges have fixed pipe fitting hole sizes, and one type of flange can only match a single pipe specification. When facing the connection requirements of pipes of different diameters, the entire set of flanges needs to be replaced, which not only increases equipment procurement costs but also extends the construction period. Second, insufficient connection stability. Most flanges are directly fixed by threads, and gaps can easily be generated between the threads due to installation errors or pipe vibration, leading to loose connections and the risk of media leakage, which affects the safe operation of the pipeline system. Utility Model Content

[0004] The purpose of this utility model is to address the shortcomings of existing technologies by proposing an adjustable forged flange that adapts to multi-diameter pipes. This invention aims to solve the problems of poor multi-diameter adaptability, frequent replacement, insufficient connection stability, and easy gap formation due to vibration in existing forged flanges.

[0005] To achieve the above objectives, the present invention provides the following technical solution: An adjustable forged flange adaptable to multi-diameter pipes includes a flange, a spline groove is provided on the top side of the flange along its axis, an installation ring is provided inside the spline groove to prevent the installation ring from rotating, a fixing ring is provided on the top side of the flange, a spring groove is provided at the bottom side of the fixing ring and at the middle end of the top side of the flange, a reinforcing ring is provided inside the spring groove to reinforce the connection between the fixing ring and the installation ring.

[0006] Furthermore, the mounting ring includes a spline shaft, the outer wall of which is slidably connected to the inside of the spline groove, a threaded rod is fixedly connected to the top side of the spline shaft, and a fixed disc is fixedly connected to the bottom side of the spline shaft, with the outer periphery of the top side of the fixed disc abutting against the bottom side of the flange.

[0007] Furthermore, the splined shaft, threaded rod, and fixed plate are all provided with pipe fitting holes for pipe installation. At the same time, splined shafts, threaded rods, and fixed plates with pipe fitting holes of different sizes can be installed as needed to fit the pipes.

[0008] Furthermore, the fixed ring has a threaded groove inside, and the inner wall of the threaded groove is threadedly connected to the outer wall of the threaded rod.

[0009] Furthermore, the reinforcing ring includes multiple springs, one end of which is fixedly connected to the bottom side of the spring groove, and the other end is fixedly connected to a force-applying ring.

[0010] Furthermore, an abutment ring is fixedly connected to the bottom side of the fixing ring, and the outer wall of the bottom side of the abutment ring is slidably connected to the inside of the spring groove.

[0011] Furthermore, the outer wall of the force-applying ring is slidably connected to the inside of the spring groove, and the bottom side of the abutment ring abuts against the top side of the force-applying ring.

[0012] Furthermore, the outer periphery of the top side of the flange is provided with multiple mounting holes for connecting multiple flanges.

[0013] This utility model has the following beneficial effects: In this invention, a splined shaft with a corresponding pipe fitting hole can be selected for assembly according to the diameter of the pipe to be installed, without the need to replace the entire connection structure. This greatly improves the adaptability to pipes of different specifications, reduces equipment adaptation costs, and meets diverse pipe connection needs.

[0014] In this invention, during installation, the splined shaft is positioned within the spline groove. Rotating the threaded groove causes the retaining ring to mount on the outer wall of the threaded rod. The retaining ring moves the abutment ring downwards and compresses the force-applying ring, compressing multiple springs. After installation, the springs continuously exert a reaction force on the abutment ring and retaining ring through the force-applying ring, ensuring a tight fit between the threaded rod and the threaded groove, eliminating connection gaps, preventing loosening caused by pipeline vibration or pressure fluctuations, and significantly improving overall connection stability and reliability. Attached Figure Description

[0015] Figure 1 This is a perspective view of an adjustable forged flange adapted to multi-diameter pipes proposed in this utility model. Figure 2 A schematic diagram of the spline groove structure of an adjustable forged flange adapted to multi-diameter pipes proposed in this utility model. Figure 3 A schematic diagram of the splined shaft structure of an adjustable forged flange adapted to multi-diameter pipes proposed in this utility model. Figure 4 This is a schematic diagram of the flange structure of an adjustable forged flange adapted to multi-diameter pipes proposed in this utility model. Figure 5 This is a schematic diagram of the spring structure of an adjustable forged flange adapted to multi-diameter pipes proposed in this utility model.

[0016] Legend: 1. Flange; 2. Retaining ring; 3. Pipe adapter hole; 4. Mounting hole; 5. Abutment ring; 6. Threaded groove; 7. Spline groove; 8. Spring groove; 9. Splined shaft; 10. Threaded rod; 11. Fixing disc; 12. Spring; 13. Force ring. Detailed Implementation

[0017] 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.

[0018] Reference Figure 1-3 This utility model provides an embodiment of an adjustable forged flange adapted to multi-diameter pipes, comprising a flange 1, a spline groove 7 axially formed on the top side of the flange 1, an installation ring disposed inside the spline groove 7 to prevent the internal installation ring from rotating, a fixing ring 2 disposed on the top side of the flange 1, a spring groove 8 disposed at the middle of the bottom side of the fixing ring 2 and the top side of the flange 1, a reinforcing ring disposed inside the spring groove 8 to reinforce the connection between the fixing ring 2 and the installation ring, and an installation ring comprising a spline shaft 9, the outer wall of the spline shaft 9 being slidably connected to the spline shaft 9. Inside the groove 7, a threaded rod 10 is fixedly connected to the top side of the spline shaft 9, and a fixed plate 11 is fixedly connected to the bottom side of the spline shaft 9. The outer periphery of the top side of the fixed plate 11 abuts against the bottom side of the flange 1. Pipe fitting holes 3 are opened inside the spline shaft 9, the threaded rod 10 and the fixed plate 11 for installing pipes. At the same time, spline shaft 9, threaded rod 10 and fixed plate 11 with pipe fitting holes 3 of different sizes can be installed as needed to fit the pipes. A threaded groove 6 is opened inside the fixed ring 2, and the inner wall of the threaded groove 6 is threadedly connected to the outer wall of the threaded rod 10.

[0019] Specifically, firstly, depending on the diameter of the pipe to be installed, a splined shaft 9 with a corresponding pipe fitting hole 3 can be flexibly selected. This allows for adaptation to different pipe specifications without replacing the entire flange structure, significantly improving compatibility and reducing equipment replacement costs. During installation, the splined shaft 9 is placed into the spline groove 7 for precise positioning. Then, the threaded groove 6 is placed on the top side of the threaded rod 10 and rotated to tighten the retaining ring 2 onto the outer wall of the threaded rod 10.

[0020] Reference Figure 1 , Figure 4 and Figure 5The reinforcing ring includes multiple springs 12. One end of each spring 12 is fixedly connected to the bottom side of the spring groove 8, and the other end is fixedly connected to a force-applying ring 13. The bottom side of the fixing ring 2 is fixedly connected to an abutment ring 5. The outer wall of the bottom side of the abutment ring 5 is slidably connected to the inside of the spring groove 8. The outer wall of the force-applying ring 13 is slidably connected to the inside of the spring groove 8. The bottom side of the abutment ring 5 abuts against the top side of the force-applying ring 13. Multiple mounting holes 4 are provided on the outer periphery of the top side of the flange 1 for connection between multiple flanges 1.

[0021] Specifically, during installation, the fixing ring 2 drives the abutment ring 5 to move downwards, contacting the force-applying ring 13 and pushing it to compress multiple springs 12. After installation, the compressed springs 12 continuously exert a reaction force on the abutment ring 5 and the fixing ring 2 through the force-applying ring 13, forcing the threaded rod 10 to fit tightly with the threaded groove 6, effectively eliminating gaps. Even if the pipeline is affected by vibration or pressure fluctuations, it can prevent the connection from loosening, significantly improving the stability and reliability of the overall structure and ensuring the safe operation of the pipeline system.

[0022] Working Principle: During use, a splined shaft 9 with a suitable pipe fitting hole 3 can be selected for installation according to the required pipe diameter. During installation, the splined shaft 9 is first placed inside the spline groove 7, and then the threaded groove 6 is placed on the top side of the threaded rod 10 and rotated, thereby installing the fixing ring 2 on the outer wall of the threaded rod 10. During installation, the fixing ring 2 will drive the abutment ring 5 to move downwards. As the abutment ring 5 moves downwards, it will contact the force-applying ring 13, and as the installation progresses, the force-applying ring 13 will be pressed downwards, compressing multiple springs 12. After installation, because multiple springs 12 are compressed, they will continuously apply force to the abutment ring 5 and the fixing ring 2 through the force-applying ring 13, making the threads on the inner wall of the threaded rod 10 and the threads on the outer wall of the threaded groove 6 fit more tightly, thus making the threaded rod 10 and the threaded groove 6 more firmly fixed and improving overall stability.

[0023] It is worth noting that the protection and sealing involved in the above embodiments are all based on the corresponding existing technologies according to the actual situation, so they will not be described in detail in the embodiments of this application.

[0024] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An adjustable forged flange adaptable to multi-diameter pipes, characterized in that, Includes a flange (1), on the top side of the flange (1) the axis is provided with a spline groove (7), the inside of the spline groove (7) is provided with an installation ring, the spline groove (7) can prevent the internal installation ring from rotating, the top side of the flange (1) is provided with a fixing ring (2), the bottom side of the fixing ring (2) and the middle end of the top side of the flange (1) are provided with a spring groove (8), the inside of the spring groove (8) is provided with a reinforcing ring to reinforce the connection between the fixing ring (2) and the installation ring.

2. The adjustable forged flange for multi-diameter pipes according to claim 1, characterized in that: The mounting ring includes a spline shaft (9), the outer wall of which is slidably connected to the inside of the spline groove (7), a threaded rod (10) is fixedly connected to the top side of the spline shaft (9), and a fixed plate (11) is fixedly connected to the bottom side of the spline shaft (9), with the outer periphery of the top side of the fixed plate (11) abutting against the bottom side of the flange (1).

3. The adjustable forged flange for multi-diameter pipes according to claim 2, characterized in that: The splined shaft (9), threaded rod (10) and fixed plate (11) are all provided with pipe adapter holes (3) for installing pipes. At the same time, splined shafts (9), threaded rods (10) and fixed plates (11) with pipe adapter holes (3) of different sizes can be installed as needed to adapt to pipes.

4. The adjustable forged flange for multi-diameter pipes according to claim 2, characterized in that: The fixed ring (2) has a threaded groove (6) inside, and the inner wall of the threaded groove (6) is threadedly connected to the outer wall of the threaded rod (10).

5. The adjustable forged flange for multi-diameter pipes according to claim 4, characterized in that: The reinforcing ring includes multiple springs (12), one end of which is fixedly connected to the bottom side of the spring groove (8), and the other end is fixedly connected to a force-applying ring (13).

6. The adjustable forged flange for multi-diameter pipes according to claim 5, characterized in that: The bottom side of the fixed ring (2) is fixedly connected to the abutment ring (5), and the outer wall of the bottom side of the abutment ring (5) is slidably connected to the inside of the spring groove (8).

7. The adjustable forged flange for multi-diameter pipes according to claim 6, characterized in that: The outer wall of the force-applying ring (13) is slidably connected to the inside of the spring groove (8), and the bottom side of the abutment ring (5) abuts against the top side of the force-applying ring (13).

8. The adjustable forged flange for multi-diameter pipes according to claim 1, characterized in that: The outer periphery of the top side of the flange (1) is provided with multiple mounting holes (4) for connection between multiple flanges (1).

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