Double-flanged self-balancing multi-directional displacement pipe joint
By designing an auxiliary structure for a double-flange self-balancing multi-directional displacement pipe joint, the installation difficulties caused by pipe angles or drops in existing technologies have been solved, enabling flexible adjustment and shape stability of the pipe joint and extending its service life.
Patent Information
- Application Number
- CN202521282181.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-06-23
- Publication Date
- 2026-06-16
- Estimated Expiration
- 2035-06-23
AI Technical Summary
Existing double flange joints are difficult to adjust in terms of angle and height when there is an angle or height difference in the pipeline, which leads to installation difficulties and makes it impossible to achieve the best match.
A double-flange self-balancing multi-directional displacement pipe joint is designed. Through an auxiliary structure composed of corrugated pipes, connecting blocks, carbon steel rods, and extrusion blocks, the multi-directional displacement adjustment of the pipe joint is realized. The auxiliary structure includes a sliding frame, groove, and anti-slip sleeve to increase friction and prevent deformation.
It enables flexible adjustment of pipe joints under angle or elevation difference conditions, avoiding installation difficulties, maintaining shape stability, and extending service life.
Smart Images

Figure CN224364528U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of double-flange pipe joints, and in particular to a double-flange self-balancing multi-directional displacement pipe joint. Background Technology
[0002] Double-flanged pipe fittings are a common type of pipe connection, typically used in applications requiring a secure connection and high sealing performance. They consist of two flanges, a gasket, and bolts, and are widely used in petroleum, chemical, water supply and drainage, heating, and fire protection industries.
[0003] Existing technologies, such as the invention with publication number CN103953808A, disclose a variable flange joint. This patent uses large and small flanges of the same diameter and includes a double-threaded pipe joint connecting the large and small flanges. The two ends of the double-threaded pipe joint have different thread diameters. A large-diameter threaded pipe is coaxially arranged at the bottom end of the large flange, which can screw into the large-diameter threaded end of the double-threaded pipe joint. A small-diameter threaded pipe is coaxially arranged at the bottom end of the small flange, which can screw into the small-diameter threaded end of the double-threaded pipe joint. Sealing grooves are provided between both ends of the double-threaded pipe joint and the bottom ends of the large and small flanges, and sealing rings are installed in the sealing grooves. This invention can connect two pipes of different specifications and can replace different flanges to meet the needs of connecting various pipe specifications.
[0004] The inventors discovered in daily use that existing double-flange joints typically require the fit between two flanges to ensure a stable pipe connection. However, when the pipes have an angle or height difference, adjusting the position and angle of the double-flange pipe joint becomes difficult. The rigidity of the flanges themselves requires very precise pipe connection, especially when the pipe angle or height difference is large. It becomes impossible to directly adjust the pipe angle and height, making it difficult to achieve the optimal match of the joint position. Moreover, the design of double-flange joints is usually based on parallel or coaxial pipe connection. When the pipes have an angle or height difference, the adaptability of double-flange joints is greatly reduced. Because the joint design is relatively fixed, it cannot flexibly adapt to changes in pipe angle or height difference like a flexible connection, which can easily lead to difficulties in joint installation or even incorrect installation.
[0005] This application provides another technical solution to this technical problem, aiming to provide those skilled in the art with multiple options for solving the problem. Summary of the Invention
[0006] The purpose of this invention is to address the shortcomings of existing technologies, such as the difficulty in adjusting pipe joints.
[0007] To solve the above technical problems, this utility model provides a double-flange self-balancing multi-directional displacement pipe joint, comprising: two flange bodies, a bellows fixedly connected to one side of the two flange bodies that are close to each other, an auxiliary structure provided on the arc surface of the flange body, the auxiliary structure including two connecting blocks, the two connecting blocks being fixedly connected to the two flange bodies respectively, a carbon steel rod installed on one side of the two connecting blocks that are close to each other, two connecting blocks movably connected to the arc surface of the carbon steel rod, a clamping plate fixedly connected to the end of the connecting block away from the carbon steel rod, an auxiliary groove opened on the inner wall of one end of the clamping plate, a connecting plate rotatably connected to the inner wall of the auxiliary groove, an auxiliary plate fixedly connected to the upper end of both the connecting plate and the clamping plate, a pressing block abutting the one side of the two auxiliary plates that are close to each other, and a sliding frame slidably connected to the surface of the two pressing blocks.
[0008] The effect achieved by the above components is as follows: when the pipe joint needs to be adjusted, the arc plate is pulled to move, the arc plate drives the connecting plate to move, the connecting plate drives the clamping plate to move, then the clamping plate and the arc plate are placed on the corrugated pipe, then the clamping plate and the arc plate are pulled to close, the connecting plate rotates on the inner wall of the auxiliary groove, then the two auxiliary plates are aligned, then the sliding frame is pulled to place the sliding frame on the surface of the auxiliary plates, then the pressing block is pulled to move, then the pressing block is inserted between the two auxiliary plates for fixation, then the carbon steel rod also deforms when the pipe joint is adjusted, to avoid accidental deformation of the pipe joint.
[0009] Preferably, a plurality of slots are provided on both sides of the sliding frame, and the plurality of slots are evenly distributed on the sliding frame.
[0010] The effect achieved by the above components is that the groove can increase the friction between the hand and the sliding frame, preventing slippage when the sliding frame is pulled.
[0011] Preferably, an anti-slip sleeve is fixedly connected to the inner wall of the sliding frame, and the anti-slip sleeve is a rubber sleeve.
[0012] The effect achieved by the above components is that the anti-slip sleeve can increase the friction between the slide frame and the hand, and prevent the slide frame from sliding when connected to the auxiliary plate.
[0013] Preferably, a pull plate is fixedly connected to the upper end of the extrusion block, and the pull plate has a rectangular cross-section.
[0014] The effect achieved by the above components is that when it is necessary to pull the extrusion block, the pull plate can be pulled directly, and the pull plate will drive the extrusion block to move, making it more convenient to move the extrusion block.
[0015] Preferably, a protective sleeve is fixedly connected to the inner wall of the connecting block, and the protective sleeve has a circular cross-section.
[0016] The effect achieved by the above components is that the protective sleeve can protect the carbon steel rod and prevent unnecessary wear and tear on the carbon steel rod during use.
[0017] Preferably, both the clamping plate and the arc plate have arc-shaped cross-sections, and both the clamping plate and the arc plate are made of stainless steel.
[0018] The effect achieved by the above components is that the stainless steel material can increase the service life of the clamps and prevent them from rusting during use.
[0019] Compared with related technologies, the double-flange self-balancing multi-directional displacement pipe joint provided by this utility model has the following beneficial effects:
[0020] By incorporating auxiliary structures, existing double-flange joints typically require the fit between two flanges to ensure stable pipe connections. However, when the pipes have angles or height differences, adjusting the position and angle of the double-flange pipe joint becomes difficult. The rigidity of the flanges themselves demands extremely precise pipe alignment, especially when the pipe angles or height differences are significant. Direct adjustment of the pipe angles and heights becomes impossible, making it difficult to achieve optimal joint positioning. Furthermore, double-flange joints are usually designed based on parallel or coaxial pipe connections. The adaptability of double-flange joints is greatly reduced when pipes have angles or height differences. Due to the relatively fixed design, they cannot flexibly adapt to changes in pipe angles or height differences like flexible connections, easily leading to installation difficulties or even incorrect installation. This device achieves the effect of conveniently and quickly adjusting the pipe joint based on the angles and height differences between pipes, and maintaining its shape after adjustment without easily deforming. Attached Figure Description
[0021] Figure 1 A schematic diagram of the structure of a double-flange self-balancing multi-directional displacement pipe joint provided by this utility model;
[0022] Figure 2 for Figure 1 The diagram shows the auxiliary structure.
[0023] Figure 3 for Figure 2 The enlarged view at point A is shown below;
[0024] Figure 4 for Figure 2 The diagram shows a partial structural schematic.
[0025] The following are the labeling elements in the diagram: 1. Flange body; 2. Bellows; 3. Auxiliary structure; 301. Connecting block; 302. Connecting block; 303. Carbon steel rod; 304. Arc plate; 305. Clamping plate; 306. Pull plate; 307. Extrusion block; 308. Auxiliary plate; 309. Sliding frame; 310. Anti-slip sleeve; 311. Groove; 312. Protective sleeve; 313. Auxiliary groove; 314. Connecting plate. Detailed Implementation
[0026] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.
[0027] The specific implementation of this utility model will be described in detail below with reference to specific embodiments.
[0028] Please see Figures 1 to 4 The present invention provides a double-flange self-balancing multi-directional displacement pipe joint, comprising: two flange bodies 1, a bellows 2 fixedly connected to one side of the two flange bodies 1 that are close to each other, and an auxiliary structure 3 provided on the arc surface of the flange body 1.
[0029] In the embodiments of this utility model, please refer to Figures 1 to 4The auxiliary structure 3 includes two connecting blocks 301, which are fixedly connected to two flange bodies 1 respectively. Carbon steel rods 303 are installed on the side of the two connecting blocks 302 that are close to each other. Two connecting blocks 302 are movably connected to the arc surface of the carbon steel rods 303. A clamping plate 305 is fixedly connected to the end of the connecting block 302 away from the carbon steel rods 303. An auxiliary groove 313 is opened on the inner wall of one end of the clamping plate 305. A connecting plate 314 is rotatably connected to the inner wall of the auxiliary groove 313. An auxiliary plate 308 is fixedly connected to the upper end of the connecting plate 314 and the clamping plate 305. An extrusion block 307 abuts against the side of the two auxiliary plates 308 that are close to each other. A sliding frame 309 is slidably connected to the surface of the two extrusion blocks 307. When the pipe joint needs adjustment, the arc plate 304 is pulled to move, which in turn moves the connecting plate 314. The connecting plate 314 then moves the clamping plate 305. The clamping plate 305 and the arc plate 304 are then fitted onto the corrugated pipe 2. The clamping plate 305 and the arc plate 304 are then pulled to close. The connecting plate 314 rotates on the inner wall of the auxiliary groove 313. The two auxiliary plates 308 are then aligned. The sliding frame 309 is then pulled to fit onto the surface of the auxiliary plate 308. The pressing block 307 is then pulled to move, and then the pressing block 307 is inserted between the two auxiliary plates 308 for fixation. When the pipe joint is adjusted, the carbon steel rod 303 also deforms to prevent accidental deformation of the pipe joint. Several slots 311 are provided on both sides of the sliding frame 309, and the slots 311 are evenly distributed on the sliding frame 309. The groove 311 increases the friction between the hand and the sliding frame 309, preventing slippage when the sliding frame 309 is pulled. An anti-slip sleeve 310, made of rubber, is fixedly connected to the inner wall of the sliding frame 309. The anti-slip sleeve 310 increases the friction between the sliding frame 309 and the hand, preventing slippage when the sliding frame 309 is connected to the auxiliary plate 308. A pull plate 306, with a rectangular cross-section, is fixedly connected to the upper end of the pressing block 307. When the pressing block 307 needs to be pulled, the pull plate 306 can be pulled directly, causing the pressing block 307 to move. The pull plate 306 makes moving the pressing block 307 more convenient. A protective sleeve 312, with an annular cross-section, is fixedly connected to the inner wall of the connecting block 302. The protective sleeve 312 protects the carbon steel rod 303, preventing unnecessary wear during use. Both the clamping plate 305 and the arc plate 304 have arc-shaped cross-sections and are made of stainless steel. The stainless steel material increases the service life of the clamping plate 305 and prevents it from corroding during use.
[0030] The working principle of the double-flange self-balancing multi-directional displacement pipe joint provided by this utility model is as follows: When the pipe joint needs to be adjusted, the arc plate 304 is pulled to move, the arc plate 304 drives the connecting plate 314 to move, the connecting plate 314 drives the clamping plate 305 to move, then the clamping plate 305 and the arc plate 304 are fitted onto the bellows 2, then the clamping plate 305 and the arc plate 304 are pulled to close, the connecting plate 314 rotates on the inner wall of the auxiliary groove 313, then the two auxiliary plates 308 are aligned, then the sliding frame 309 is pulled to fit onto the surface of the auxiliary plate 308, then the pressing block 307 is pulled to move, then the pressing block 307 is inserted between the two auxiliary plates 308 for fixation, and then the pipe joint is adjusted. The lever also deforms to prevent accidental deformation of the pipe joint. The groove 311 increases the friction between the hand and the slide frame 309 to prevent slippage when the slide frame 309 is pulled. The anti-slip sleeve 310 increases the friction between the slide frame 309 and the hand to prevent slippage when the slide frame 309 is connected to the auxiliary plate 308. When it is necessary to pull the pressing block 307, the pull plate 306 can be pulled directly. The pull plate 306 moves the pressing block 307, making it easier to move the pressing block 307. The protective sleeve 312 protects the carbon steel rod 303 to prevent unnecessary wear during use. The stainless steel material increases the service life of the clamping plate 305 and prevents it from rusting during use.
[0031] The circuits and controls involved in this utility model are all existing technologies and will not be described in detail here.
[0032] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.
Claims
1. A double-flange self-balancing multi-directional displacement pipe joint, characterized in that, include: Two flange bodies (1) and two connecting blocks (302) are provided. A bellows (2) is fixedly connected to one side of the two flange bodies (1) that are close to each other. An auxiliary structure (3) is provided on the arc surface of the flange body (1). The auxiliary structure (3) includes two connecting blocks (301). The two connecting blocks (301) are fixedly connected to the two flange bodies (1) respectively. A carbon steel rod (303) is installed on one side of the two connecting blocks (302) that are close to each other. The arc surface of the carbon steel rod (303) is movably connected to two connecting blocks (302). The end of the connecting block (302) away from the carbon steel rod (303) is fixedly connected to a clamping plate (305). An auxiliary groove (313) is provided on the inner wall of one end of the clamping plate (305). A connecting plate (314) is rotatably connected to the inner wall of the auxiliary groove (313). An auxiliary plate (308) is fixedly connected to the upper end of both the connecting plate (314) and the clamping plate (305). An extrusion block (307) is abutted on the side of the two auxiliary plates (308) that are close to each other. A sliding frame (309) is slidably connected to the surface of the two extrusion blocks (307).
2. The double-flange self-balancing multi-directional displacement pipe joint according to claim 1, characterized in that, The sliding frame (309) has several slots (311) on both sides, and the slots (311) are evenly distributed on the sliding frame (309).
3. The double-flange self-balancing multi-directional displacement pipe joint according to claim 1, characterized in that, The inner wall of the sliding frame (309) is fixedly connected with an anti-slip sleeve (310), which is a rubber sleeve.
4. A double-flange self-balancing multi-directional displacement pipe joint according to claim 1, characterized in that, The upper end of the extrusion block (307) is fixedly connected to a pull plate (306), and the cross-section of the pull plate (306) is rectangular.
5. A double-flange self-balancing multi-directional displacement pipe joint according to claim 1, characterized in that, The inner wall of the connecting block (302) is fixedly connected to a protective sleeve (312), and the cross-section of the protective sleeve (312) is circular.
6. A double-flange self-balancing multi-directional displacement pipe joint according to claim 1, characterized in that, The cross-sections of the clamping plate (305) and the arc plate (304) are both arc-shaped, and both the clamping plate (305) and the arc plate (304) are stainless steel plates.
Citation Information
Patent Citations
Changeable flange joint
CN103953808A