Novel high-strength disc seat flange connecting structure

By adopting a new high-strength disc flange connection structure and utilizing the linkage mechanism of transmission components and rubber blocks, the sealing failure problem of flange connection under vibration and temperature changes is solved, thereby achieving stable pipeline connection and improved safety.

CN224201308UActive Publication Date: 2026-05-05NINGBO BEILUN ZHUHE MACHINERY CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
NINGBO BEILUN ZHUHE MACHINERY CO LTD
Filing Date
2025-06-05
Publication Date
2026-05-05

AI Technical Summary

Technical Problem

Existing flange connections are prone to pipeline displacement under vibration, pressure fluctuations, or temperature changes, leading to sealing failure and media leakage, which poses a safety hazard, especially in chemical production plants.

Method used

A new high-strength disc-type flange connection structure is adopted. Through the design of the transmission components and rubber blocks, the bolt tightening force drives the transmission frame and rubber blocks to clamp the pipeline, enhancing the connection stability and sealing performance. This includes the linkage mechanism of the transmission frame, connecting rod, limit disc, and rubber blocks.

Benefits of technology

It effectively solves the problems of pipeline displacement and sealing failure, improves the stability and reliability of flange connections, prevents media leakage, and enhances safety and service life.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a novel high-strength disc seat flange connecting structure, which relates to the technical field of connecting flanges and comprises a flange plate body and a transmission component, the transmission component is arranged in the flange plate body and comprises a transmission frame in sliding connection with the flange plate body, and the bottom of the transmission frame is fixedly connected with a first connecting rod. The first connecting rod is fixedly connected with a connecting disc, the connecting disc is slidably connected with a threaded frame, the threaded frame is fixedly connected with a first limiting disc, the transmission frame is fixedly connected with a transmission rod, the transmission rod is fixedly connected with a sliding rod, the sliding rod is slidably connected with a transmission block, and the transmission block is fixedly connected with a second connecting rod. A second connecting rod is fixedly connected with a transmission block, a rubber block is fixedly connected to the second connecting rod, the second connecting rod is connected with the transmission block and the rubber block, the second connecting rod slides in an open hole of the flange plate body, the connecting plate, the transmission frame and other components are linked in a transmission mode driven by bolt fastening force, and the problems of pipeline displacement and sealing failure are solved.
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Description

Technical Field

[0001] This utility model relates to the field of connecting flange technology, specifically a novel high-strength disc seat flange connection structure. Background Technology

[0002] With the acceleration of global industrialization, various sectors are placing increasingly higher demands on the reliability and efficiency of pipeline and equipment connections. Over the past few decades, the booming development of the energy sector, such as the extraction and transportation of oil and natural gas and thermal power generation, has led to the laying of a large number of pipeline systems crisscrossing the land and deep sea. These pipelines not only have to withstand high-temperature and high-pressure media, but also have to cope with complex and ever-changing natural environments.

[0003] In existing flange connection technology, pipelines are secured solely by the connection between flanges, lacking additional tightening measures for the internal pipes. When the piping system is in operation, especially under conditions of vibration, pressure fluctuations, or temperature changes, the pipeline is prone to relative displacement at the flange connection. This displacement can lead to seal failure between the pipeline and the flange, resulting in media leakage. For example, in some chemical production plants, due to changes in fluid velocity within the pipeline or equipment vibration, slight displacement of the pipeline at the flange can create gaps in the previously well-sealed interface, allowing toxic and harmful chemical media to leak out. This not only causes environmental pollution but may also endanger the lives of operators. Utility Model Content

[0004] The purpose of this utility model is to provide a novel high-strength disc seat flange connection structure to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a novel high-strength disc seat flange connection structure, comprising:

[0006] Flange body;

[0007] A transmission assembly is housed within the flange body. The transmission assembly includes a transmission frame slidably connected to the flange body. A first connecting rod is fixedly connected to the bottom of the transmission frame. A connecting plate is fixedly connected to the first connecting rod. A threaded frame is slidably connected to the connecting plate. A first limiting plate is fixedly connected to the threaded frame. A transmission rod is fixedly connected to the transmission frame. A sliding rod is fixedly connected to the transmission rod. A transmission block is slidably connected to the sliding rod. A second connecting rod is fixedly connected to the transmission block. A rubber block is fixedly connected to the second connecting rod. An opening is provided on the flange body near the rubber block.

[0008] A fixing ring is placed at the bottom of the flange body, a first rubber ring is fixedly connected to the fixing ring, and a second rubber ring is fixedly connected to the top of the flange body.

[0009] Furthermore, a spring is fixedly connected between the connecting disc and the threaded frame.

[0010] The above technical solution is adopted: by setting a spring, it is easy to fix the connecting plate to the flange body.

[0011] Furthermore, the first limiting plate is fixedly connected to the flange body.

[0012] The above technical solution involves setting a first limiting plate that is fixedly connected to the flange body. When in use, the rubber first limiting plate can make the flange connection tighter.

[0013] Furthermore, the flange body has an opening, and the threaded frame is fixedly connected to the opening on the flange body.

[0014] The above technical solution is adopted: by opening holes in the flange body, it is easy to fix the flange body during use.

[0015] Furthermore, a threaded hole is provided on the side of the connecting plate near the threaded frame.

[0016] The above technical solution employs a threaded hole on the connecting plate to facilitate the screwing in of bolts.

[0017] Furthermore, an opening is provided on the side of the flange body near the transmission block, and a second connecting rod is fixedly connected to the transmission block. The second connecting rod is slidably connected in the opening on the flange body.

[0018] The above technical solution is adopted: by opening an opening on the side of the flange body near the transmission block, it is convenient for the second connecting rod to slide in it during use.

[0019] Furthermore, the transmission block has an oblique hole, and the sliding rod is slidably connected in the oblique hole on the transmission block.

[0020] The above technical solution is adopted: by opening oblique holes on the transmission block, it is easy for the sliding rod to slide in them during use.

[0021] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0022] In this invention, during installation, a pipe is inserted through the opening in the flange body and initially fixed with bolts. Subsequently, bolts are inserted into the connecting plate to connect the two flange bodies. When screwed in, the connecting plate slides towards the threaded frame, compressing the springs for positioning. Once the connecting plate is pressed against the bottom of the threaded frame, the bolts pass through the first limiting plate to complete the pipe connection. At this point, the connecting plate slides, driving the transmission frame upward via the first connecting rod. The transmission frame drives the transmission rod with a fixed sliding rod, causing the sliding rod to slide upward along the inclined hole of the transmission block. The inclined hole design generates a horizontal component force that pushes the transmission block towards the flange body. Because the second connecting rod connects the transmission block and the rubber block, and the second connecting rod slides within the opening in the flange body, the sliding of the transmission block causes the rubber block to clamp the pipe. This transmission method, driven by the bolt tightening force, links the connecting plate, transmission frame, and other components, solving the problems of pipe displacement and sealing failure, and enhancing the stability and reliability of the flange connection. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the overall structure of a novel high-strength disc-mount flange connection structure.

[0024] Figure 2 This is a schematic diagram showing the position of the second connecting rod in a novel high-strength disc-mount flange connection structure.

[0025] Figure 3 This is a schematic diagram of the cross-sectional structure of a limiting frame for a novel high-strength disc-type flange connection structure.

[0026] Figure 4 This is a schematic diagram showing the position of the rubber block in a novel high-strength disc-type flange connection structure.

[0027] Figure 5 This is a schematic diagram showing the connection relationship between the second connecting rod and the flange body in a novel high-strength disc-type flange connection structure.

[0028] Numbering on the map:

[0029] 1. Flange body;

[0030] 2. Transmission assembly; 21. Transmission frame; 22. First connecting rod; 23. Connecting plate; 24. Spring; 25. Threaded frame; 26. First limiting plate; 27. Transmission rod; 28. Transmission block; 29. ​​Second connecting rod; 210. Rubber block; 211. Sliding rod;

[0031] 3. Fixing ring; 31. First rubber ring; 32. Second rubber ring. Detailed Implementation

[0032] 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.

[0033] Example:

[0034] like Figures 1-5 As shown, this utility model provides a technical solution: a novel high-strength disc seat flange connection structure, comprising:

[0035] Flange body 1;

[0036] Transmission assembly 2 is placed inside flange body 1. Transmission assembly 2 includes transmission frame 21 which is slidably connected to flange body 1. A first connecting rod 22 is fixedly connected to the bottom of transmission frame 21. A connecting plate 23 is fixedly connected to the first connecting rod 22. A threaded frame 25 is slidably connected to the connecting plate 23. A first limiting plate 26 is fixedly connected to the threaded frame 25. A transmission rod 27 is fixedly connected to transmission frame 21. A sliding rod 211 is fixedly connected to transmission rod 27. A transmission block 28 is slidably connected to sliding rod 211. A second connecting rod 29 is fixedly connected to transmission block 28. A rubber block 210 is fixedly connected to the second connecting rod 29. An opening is provided on the side of flange body 1 near the rubber block 210.

[0037] A fixing ring 3 is placed at the bottom of the flange body 1, and a first rubber ring 31 is fixedly connected to the fixing ring 3. A second rubber ring 32 is fixedly connected to the top of the flange body 1.

[0038] In this invention, during installation, a pipe is inserted through the opening in the flange body 1 and initially secured with bolts. Then, bolts are inserted into the connecting plate 23 to connect the two flange bodies 1. As the bolts are screwed in, they cause the connecting plate 23 to slide towards the threaded frame 25, compressing the spring 24 for auxiliary positioning. Once the connecting plate 23 is flush with the bottom of the threaded frame 25, the bolts pass through the first limiting plate 26 to complete the pipe connection. At this point, the connecting plate 23 slides, causing the transmission frame 21 to rise via the first connecting rod 22. The transmission frame 21 then drives the transmission rod 2, which has a fixed sliding rod 211. 7. The sliding rod 211 slides upward along the inclined hole of the transmission block 28. The inclined hole design generates a horizontal component force to push the transmission block 28 towards the flange body 1. Since the second connecting rod 29 connects the transmission block 28 and the rubber block 210, and the second connecting rod 29 slides in the opening of the flange body 1, the sliding of the transmission block 28 causes the rubber block 210 to clamp the pipe. This transmission method driven by the bolt tightening force links the connecting plate 23, transmission frame 21 and other components to solve the problems of pipe displacement and sealing failure, and enhance the stability and reliability of the flange connection.

[0039] Furthermore, such as Figures 1 to 5 As shown, a spring 24 is fixedly connected between the connecting plate 23 and the threaded frame 25. The spring 24 facilitates the fixation of the connecting plate 23 to the flange body 1. The spring 24 acts as a buffer and pre-tightener between the connecting plate 23 and the threaded frame 25. During installation, tightening the bolts moves the connecting plate 23 towards the threaded frame 25, compressing the spring 24. Its elastic force ensures the relative position stability between the connecting plate 23 and the flange body 1, preventing loosening due to vibration or external force. Simultaneously, the elastic deformation of the spring 24 can accommodate certain installation errors, ensuring the tightness and reliability of the connection.

[0040] like Figure 1 , Figure 4 As shown, the first limiting plate 26 is fixedly connected to the flange body 1. By fixing the first limiting plate 26 to the flange body 1, the rubber-material first limiting plate 26 allows for a tighter flange connection during use. Rubber material has good elasticity and sealing performance. When two flange bodies 1 are connected, the first limiting plate 26 is compressed and deformed, filling the tiny gaps between the flanges and preventing media leakage. Furthermore, the rubber material can absorb vibration and impact, reducing bolt loosening and flange wear caused by vibration, thus improving connection stability and service life.

[0041] like Figures 1 to 4 As shown, the flange body 1 has openings, and the threaded frame 25 is fixedly connected to the openings on the flange body 1. These openings facilitate the fixing of the flange body 1 during use. They also provide channels for mounting bolts, allowing the flange body 1 to be accurately connected to other components. Furthermore, a well-designed opening structure ensures even bolt stress, improving the strength and stability of the connection. During installation, workers can quickly position and tighten bolts through these openings, improving installation efficiency.

[0042] A threaded hole is provided on the side of the connecting plate 23 near the threaded frame 25, facilitating the screwing in of bolts. The engagement of the threaded hole and the bolt allows for precise connection and tightening. During installation, the bolt is screwed into the threaded hole, generating sufficient preload to securely connect the connecting plate 23 to other components. Furthermore, the threaded connection is detachable, facilitating future maintenance and repair.

[0043] like Figures 1 to 5As shown, an opening is provided on the side of the flange body 1 near the transmission block 28. A second connecting rod 29 is fixedly connected to the transmission block 28. The second connecting rod 29 is slidably connected within the opening on the flange body 1. The opening on the side of the flange body 1 near the transmission block 28 facilitates the sliding of the second connecting rod 29 during use. These openings provide space for the movement of the transmission assembly 2, ensuring smooth transmission. When the transmission frame 21 moves, the second connecting rod 29 can slide freely within the opening, driving the rubber block 210 to clamp or loosen the pipe, thereby achieving effective fixing and sealing of the pipe.

[0044] like Figure 5 As shown, the transmission block 28 has an oblique hole, and the sliding rod 211 is slidably connected to the oblique hole in the transmission block 28. The oblique hole facilitates the sliding rod 211's movement during use. The oblique hole design allows the sliding rod 211 to convert the vertical movement of the transmission frame 21 into the horizontal movement of the transmission block 28 during sliding, thus achieving force transmission and direction conversion. This ingenious design makes the transmission assembly 2 more compact and efficient, improving the performance of the entire flange connection structure.

[0045] like Figures 1 to 5 As shown, the pipe is first inserted through the opening on the flange body 1 and then tightened with bolts to achieve initial fixation of the pipe.

[0046] The two flange bodies 1 are connected by inserting bolts into the connecting plate 23;

[0047] The bolt drives the connecting plate 23 to slide towards the side closer to the threaded frame 25, compressing the spring 24 until the connecting plate 23 is completely attached to the bottom of the threaded frame 25. The bolt passes through the first limiting plate 26 to connect the two flange bodies 1, realizing the docking of the two pipes.

[0048] During this process, the connecting plate 23 will drive the transmission frame 21 to rise through the first connecting rod 22, so that the transmission frame 21 drives the transmission rod 27 to slide on the transmission block 28, so that the rubber block 210 slides upward on the inclined hole on the transmission block 28, and the transmission block 28 will be driven to slide towards the side closer to the flange body 1, so that the second connecting rod 29 drives the rubber block 210 to slide towards the side closer to the pipe, until the pipe is completely clamped.

[0049] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Although the present utility model has been disclosed above with reference to preferred embodiments, it is not intended to limit the present utility model. Any person skilled in the art can make some modifications or alterations to the above-described technical content to create equivalent embodiments without departing from the scope of the present utility model. The implementation schemes in the above embodiments can also be further combined or replaced. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present utility model without departing from the scope of the present utility model shall still fall within the scope of the present utility model.

Claims

1. A novel high-strength disc-mount flange connection structure, characterized in that, include: Flange body (1); A transmission assembly (2) is placed inside the flange body (1). The transmission assembly (2) includes a transmission frame (21) that is slidably connected to the flange body (1). A first connecting rod (22) is fixedly connected to the bottom of the transmission frame (21). A connecting plate (23) is fixedly connected to the first connecting rod (22). A threaded frame (25) is slidably connected to the connecting plate (23). A first limiting plate (26) is fixedly connected to the threaded frame (25). A transmission rod (27) is fixedly connected to the transmission frame (21). A sliding rod (211) is fixedly connected to the transmission rod (27). A transmission block (28) is slidably connected to the sliding rod (211). A second connecting rod (29) is fixedly connected to the transmission block (28). A rubber block (210) is fixedly connected to the second connecting rod (29). An opening is provided on the side of the flange body (1) near the rubber block (210). A fixing ring (3) is placed at the bottom of the flange body (1). A first rubber ring (31) is fixedly connected to the fixing ring (3), and a second rubber ring (32) is fixedly connected to the top of the flange body (1).

2. The novel high-strength disc-mount flange connection structure according to claim 1, characterized in that: A spring (24) is fixedly connected between the connecting plate (23) and the threaded frame (25).

3. The novel high-strength disc-mount flange connection structure according to claim 1, characterized in that: The first limiting plate (26) is fixedly connected to the flange body (1).

4. The novel high-strength disc-mount flange connection structure according to claim 1, characterized in that: The flange body (1) has an opening, and the threaded frame (25) is fixedly connected to the opening on the flange body (1).

5. The novel high-strength disc-mount flange connection structure according to claim 4, characterized in that: The connecting plate (23) has a threaded hole on the side near the threaded frame (25).

6. The novel high-strength disc-mount flange connection structure according to claim 1, characterized in that: An opening is provided on the side of the flange body (1) near the transmission block (28). A second connecting rod (29) is fixedly connected to the transmission block (28), and the second connecting rod (29) is slidably connected in the opening on the flange body (1).

7. The novel high-strength disc-mount flange connection structure according to claim 1, characterized in that: The transmission block (28) has an oblique hole, and the sliding rod (211) is slidably connected in the oblique hole on the transmission block (28).