Pipe butt coupling device

By using the snap-fit ​​components and quick-release mechanism of the pipe connection snap-fit ​​device, the problems of low pipe connection efficiency and poor sealing in the existing technology are solved, realizing rapid connection and convenient maintenance, and improving construction efficiency and sealing performance.

CN224680334UActive Publication Date: 2026-08-25BEIJING KINGTON ENG TECH CO LTD
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Patent Information

Application Number
CN202522253974.7
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-10-24
Publication Date
2026-08-25
Estimated Expiration
2035-10-24

AI Technical Summary

Technical Problem

Existing pipe connection methods suffer from low construction efficiency, poor sealing, and inconvenient maintenance. In particular, in the case of large diameter or multiple interfaces, multiple people are required to work together, and the pipes are prone to loosening, which affects the progress of the project and its long-term stability.

Method used

The pipe connection snap-fit ​​device includes snap-fit ​​components and a quick-release mechanism. The snap-fit ​​components enable quick connection, and the quick-release mechanism simplifies disassembly. Combined with a magnetic plate and sealing structure, it improves stability and sealing performance.

Benefits of technology

It enables rapid pipeline connection, lowers the operational threshold, improves construction efficiency and maintenance convenience, ensures long-term sealing, and reduces reliance on professional skills and maintenance difficulty.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to a pipeline butt joint buckle device belongs to pipeline butt joint technical field, including first pipeline and second pipeline, first pipeline is close to the one end fixed connection of second pipeline with first flange, second pipeline is close to the one end fixed connection of first pipeline with second flange, be provided with buckle assembly on first pipeline, buckle assembly includes first fixed ring, plug rod, second fixed ring, fixed frame, fixed pipe, first spring, push rod and quick -release mechanism, the inner wall of first fixed ring is attached with the outer wall of first pipeline. Through setting buckle assembly, realize the quick butt joint of first pipeline and second pipeline, to this shortens the butt joint time of first pipeline and second pipeline, improves construction efficiency greatly, can reduce the operation threshold with automatic clamping simultaneously, to this reduces the dependence on professional skill, and when the subsequent maintenance replacement, can make the later maintenance more convenient, to this reduces the overhaul difficulty.
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Description

Technical Field

[0001] This utility model relates to the field of pipe connection technology, and specifically to a pipe connection buckle device. Background Technology

[0002] In industrial production, building construction, and municipal engineering, pipelines serve as the core carriers for fluid transmission and ventilation. The efficiency, reliability, and ease of maintenance of their installation directly impact the overall project progress, cost control, and long-term operational stability. Currently, the mainstream pipeline connection methods in the industry are still mainly traditional rigid connections, including welding, flange connections, and threaded connections. While these methods can meet basic sealing and fixing requirements in specific scenarios, their limitations are becoming increasingly apparent as projects demand efficient construction, low skill dependence, and convenient maintenance. They are no longer suitable for the diverse and efficient requirements of modern engineering.

[0003] According to the public announcement (CN213018212U), a pipe docking device is disclosed. This technology discloses "a first flange for connecting to a first pipe, a second flange for connecting to a second pipe, a connecting pipe disposed between the first flange and the second flange, an elastic support pad placed between the end face of one end of the connecting pipe and the second flange to elastically support the connecting pipe on the second flange, and several fastening components for fastening the connection between the first flange and the second flange. The elastic support pad is provided with a fluid channel at the position corresponding to the flange hole of the second flange. The device has the technical effect of quickly docking two pipes with eccentric axes or angles by means of the elastic deformation of the elastic support pad to offset the axis of the first flange and the axis of the second flange by means of several fastening components."

[0004] In the aforementioned comparative documents, although the elastic deformation of the elastic support pad causes a certain angle offset between the axis of the first flange and the axis of the second flange, and then several fastening components are used to fasten the offset position of the first flange and the second flange, it is possible to quickly connect and install two pipes with eccentric or angled axes, reduce the difficulty of connecting two pipes with eccentric or angled axes, and improve the efficiency of pipe connection and installation. However, in use, the connection and fixation are done by bolts. Although high-temperature welding is not required when fixing with bolts, each bolt must be installed and tightened in a specific order using a torque wrench. If the pipe diameter is large or the number of interfaces is large, the bolt tightening process requires the cooperation of multiple people, and uneven torque can easily lead to sealing failure. At the same time, after connection, the bolt connection may loosen after long-term use, thus affecting the sealing performance of the pipe connection.

[0005] To address the aforementioned issues, this application proposes a pipe connection clamping device. Utility Model Content

[0006] This utility model addresses the technical problems existing in the prior art by providing a pipe connection buckle device.

[0007] The technical solution of this utility model to solve the above-mentioned technical problems is as follows: A pipe connection buckle device includes a first pipe and a second pipe. A first flange is fixedly connected to one end of the first pipe near the second pipe, and a second flange is fixedly connected to one end of the second pipe near the first pipe. A buckle assembly is provided on the first pipe. The buckle assembly includes a first fixing ring, a plug rod, a second fixing ring, a fixing frame, a fixing tube, a first spring, a push rod, and a quick-release mechanism. The inner wall of the first fixing ring is in contact with the outer wall of the first pipe. The side of the first fixing ring near the second pipe is fixedly connected to the plug rod. The inner wall of the second fixing ring is in contact with the outer wall of the second pipe. A fixing frame is fixedly connected to the side of the second fixing ring away from the first fixing ring. One end of the fixing tube on the outer wall of the fixing frame is fixedly connected. The inner wall of the fixing tube is fixedly connected to one end of the first spring. The movable end of the first spring is fixedly connected to the inner wall of the push rod. The push rod is slidably connected to the fixing tube.

[0008] The quick-release mechanism includes a movable plate, a pressing rod, and a lifting rod. One side of the movable plate is in contact with one side of the second fixing ring. The side of the movable plate near the fixing frame is fixedly connected to one end of the pressing rod. The outer wall of the push rod is fixedly connected to one end of the lifting rod. The lifting rod is slidably connected to the fixing tube. The end of the lifting rod located outside the fixing tube is in contact with one end of the pressing rod. By setting the quick-release mechanism, the push rod can be quickly lifted, thereby facilitating the removal and disassembly of the push rod from the hole provided on the insertion rod.

[0009] A second spring is fixedly connected to the side of the second fixing ring near the movable plate. One side of the second spring is fixedly connected to one side of the movable plate. A protective tube is fixedly connected to one side of the movable plate. The outer wall of the protective tube fits into the hole opened in the second fixing ring. By setting the protective tube and the second spring, the movable plate can be reset, which facilitates the reuse of the movable plate and increases the stability of the movable plate.

[0010] A magnetic plate is fixedly connected to the side of the second fixing ring away from the first fixing ring. One side of the magnetic plate is in contact with the side of the movable plate close to the second fixing ring. By setting the magnetic plate, the movable plate is further fixed, thereby preventing the movable plate from shaking during use. This prevents the shaking of the movable plate from affecting the fixing of the push rod to the insertion rod, and thus avoids affecting the connection between the first pipe and the second pipe.

[0011] A sealing plate is fixedly connected to the outer wall of the first fixing ring, and a sealing frame is fixedly connected to the outer wall of the second fixing ring. The inner wall of the sealing frame is in contact with the outer wall of the sealing plate. By setting the sealing plate and the sealing frame, the connection between the first pipe and the second pipe is further sealed, thereby preventing material from flowing out through the connection between the first pipe and the second pipe, and thus avoiding material waste.

[0012] The first connecting rod is fixedly connected to the end of the second fixing ring, and the second connecting rod is fixedly connected to the end of the first fixing ring. By setting the first connecting rod and the second connecting rod, the two first fixing rings and the two second fixing rings are connected to each other, thereby increasing the connection stability of the first fixing ring and the second fixing ring to the first pipe and the second pipe.

[0013] A sealing ring is provided on the side of the first flange near the second flange. A sealing gasket is fixedly connected to the outer wall of the sealing ring. The outer wall of the sealing gasket is in contact with one side of the second flange. By setting the sealing ring and the sealing gasket, the connection between the first pipe and the second pipe is sealed, thereby preventing materials from flowing out through the connection between the first pipe and the second pipe.

[0014] The beneficial effects of this utility model are:

[0015] By setting up a snap-fit ​​component, the first and second pipes can be quickly connected, thereby shortening the connection time between the first and second pipes and greatly improving construction efficiency. At the same time, the automatic snap-fit ​​can lower the operation threshold, thereby reducing the reliance on professional skills, and making subsequent maintenance and replacement more convenient, thus reducing the difficulty of inspection.

[0016] By setting up a quick-release mechanism, the push rod can be quickly lifted, making it easy to disassemble and detach the push rod from the hole set on the insertion rod. This facilitates the separation of the first and second pipes, allowing workers to easily repair or replace them, thus ensuring the transmission of materials through the first and second pipes. Attached Figure Description

[0017] Figure 1 This is a schematic diagram showing the overall structure of this utility model;

[0018] Figure 2 This is a schematic diagram showing the structure of the first flange and its related parts for this utility model;

[0019] Figure 3 This is a schematic diagram of the structure of the second fixing ring and related parts of this utility model;

[0020] Figure 4 This is a schematic diagram of the structure of the fixing frame and related parts of this utility model;

[0021] Figure 5 This is a schematic diagram illustrating the structure of the sealing plate and its related parts in this utility model.

[0022] The attached diagram lists the components represented by each number as follows:

[0023] 1. First pipe; 2. Second pipe; 3. First flange; 4. Second flange; 5. First fixing ring; 6. Insert rod; 7. Second fixing ring; 8. Fixing frame; 9. Fixing tube; 10. First spring; 11. Push rod; 12. Movable plate; 13. Extrusion rod; 14. Lifting rod; 15. Protective tube; 16. Second spring; 17. Magnetic plate; 18. Sealing plate; 19. Sealing frame; 20. First connecting rod; 21. Second connecting rod; 22. Sealing ring; 23. Sealing gasket. Detailed Implementation

[0024] 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.

[0025] Reference Figure 1-5 A pipe connection buckle device includes a first pipe 1 and a second pipe 2. A first flange 3 is fixedly connected to one end of the first pipe 1 near the second pipe 2, and a second flange 4 is fixedly connected to one end of the second pipe 2 near the first pipe 1. The first flange 3 and the second flange 4 can facilitate the connection of the first pipe 1 and the second pipe 2. A buckle assembly is provided on the first pipe 1; the buckle assembly can fix the first pipe 1 and the second pipe 2.

[0026] The snap-fit ​​assembly includes a first retaining ring 5, a plug rod 6, a second retaining ring 7, a retaining frame 8, a retaining tube 9, a first spring 10, a push rod 11, and a quick-release mechanism. The inner wall of the first retaining ring 5 is fitted against the outer wall of the first pipe 1, and the side of the first retaining ring 5 closest to the second pipe 2 is fixedly connected to the plug rod 6. The first retaining ring 5 is used to fix multiple plug rods 6, which can be inserted into holes inside the first flange 3 and the second flange 4. The inner wall of the second retaining ring 7 is fitted against the outer wall of the second pipe 2, and the side of the second retaining ring 7 furthest from the first retaining ring 5 is fixedly connected to the plug rod 6. The fixed frame 8 is connected to the fixed tube 9 on the outer wall of the fixed frame 8. The inner wall of the fixed tube 9 is fixedly connected to one end of the first spring 10. The fixed tube 9 is used to fix the first spring 10. The movable end of the first spring 10 is fixedly connected to the inner wall of the push rod 11. The first spring 10 can realize the up and down movement of the push rod 11. The push rod 11 is slidably connected to the fixed tube 9. The push rod 11 can be inserted into the hole of the plug rod 6, thereby realizing the connection and fixation of the first fixed ring 5 and the plug rod 6.

[0027] Reference Figure 3 and Figure 4 The quick-release mechanism includes a movable plate 12, a pressing rod 13, and a lifting rod 14. One side of the movable plate 12 is in contact with one side of the second fixing ring 7. The side of the movable plate 12 near the fixing frame 8 is fixedly connected to one end of the pressing rod 13. The movable plate 12 can fix the pressing rod 13. The outer wall of the push rod 11 is fixedly connected to one end of the lifting rod 14. The lifting rod 14 is slidably connected to the fixing tube 9. The end of the lifting rod 14 located outside the fixing tube 9 is in contact with one end of the pressing rod 13. The pressing rod 13 can press the lifting rod 14, thereby lifting the lifting rod 14 upward, thus lifting the push rod 11, and making it easier to detach the push rod 11 from the hole provided on the insertion rod 6.

[0028] Reference Figure 3 and Figure 4 A second spring 16 is fixedly connected to the side of the second fixed ring 7 near the movable plate 12. One side of the second spring 16 is fixedly connected to one side of the movable plate 12. The second spring 16 can make the movable plate 12 quickly return to its original position after the movable plate 12 is pushed, so as to facilitate the reuse of the movable plate 12. A protective tube 15 is fixedly connected to one side of the movable plate 12. The outer wall of the protective tube 15 fits into the hole opened in the second fixed ring 7. The protective tube 15 can protect the second spring 16 and prevent the second spring 16 from shifting when stretched.

[0029] Reference Figure 1-3A magnetic plate 17 is fixedly connected to the side of the second fixing ring 7 away from the first fixing ring 5. Each first fixing ring 5 is provided with a magnetic plate 17. One side of the magnetic plate 17 is in contact with the side of the movable plate 12 that is close to the second fixing ring 7. The magnetic plate 17 can increase the stability of the movable plate 12, thereby preventing the movable plate 12 from shaking and affecting the fixing of the push rod 11 to the insertion rod 6, thus avoiding affecting the connection between the first pipe 1 and the second pipe 2.

[0030] Reference Figure 1 , Figure 3 and Figure 5 A sealing plate 18 is fixedly connected to the outer wall of the first fixing ring 5, and a sealing plate 18 is provided on each first fixing ring 5. A sealing frame 19 is fixedly connected to the outer wall of the second fixing ring 7, and a sealing frame 19 is provided on each second fixing ring 7. The inner wall of the sealing frame 19 fits against the outer wall of the sealing plate 18. The cooperation of the sealing plate 18 and the sealing frame 19 can ensure the sealing effect at the joint of the first pipe 1 and the second pipe 2, thereby preventing the loss of materials.

[0031] Reference Figure 3 and Figure 5 The end of the second fixing ring 7 is fixedly connected to the first connecting rod 20. Two first connecting rods 20 are provided on each first fixing ring 7. The first connecting rods 20 can be inserted into the holes provided on the second fixing ring 7 to connect the two second fixing rings 7. The end of the first fixing ring 5 is fixedly connected to the second connecting rod 21. Two second connecting rods 21 are provided on each second fixing ring 5. The second connecting rods 21 can be inserted into the holes provided on the first fixing ring 5 to connect the two first fixing rings 5.

[0032] Reference Figure 1 and Figure 2 A sealing ring 22 is provided on the side of the first flange 3 near the second flange 4. The inner and outer diameters of the sealing ring 22 are the same as the inner and outer diameters of the first pipe 1 and the second pipe 2. A sealing gasket 23 is fixedly connected to the outer wall of the sealing ring 22. The outer wall of the sealing gasket 23 is in contact with one side of the second flange 4. Two sealing gaskets 23 are provided, with the sealing ring 22 on both sides of the sealing ring 22. The outer wall of the sealing gasket 23 is in contact with one side of the second flange 4. The combined use of the sealing ring 22 and the sealing gasket 23 can increase the sealing performance of the connection between the first pipe 1 and the second pipe 2, thereby preventing materials from flowing out through the connection between the first pipe 1 and the second pipe 2.

[0033] Working principle:

[0034] When the first pipe 1 and the second pipe 2 need to be connected, the operator puts two first fixing rings 5 ​​on the first pipe 1 and then connects the two first fixing rings 5 ​​together through the second connecting rod 21. After the first fixing rings 5 ​​are connected, the insertion rod 6 passes through the holes provided on the first flange 3 and the second flange 4. After passing through, the two second fixing rings 7 are put on the second pipe 2 and then connected together through the first connecting rod 20. Then, the movable plate 12 is pushed, so that the movable plate 12 drives the pressing rod 13 to press the lifting rod 14, thereby raising the push rod 11. After the push rod 11 is raised, the insertion rod 6 is inserted into the inside of the fixed frame 8 and the movable plate 12 is released. At this time, the movable plate 12 will be reset under the action of the protective tube 15 and the second spring 16. Then, the push rod 11 will be inserted into the hole of the insertion rod 6 under the action of the first spring 10, thereby realizing the connection and fixation of the first pipe 1 and the second pipe 2.

[0035] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. It will be apparent to those skilled in the art that this utility model is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or basic characteristics of this utility model. Therefore, the embodiments should be considered exemplary and non-limiting in all respects. The scope of this utility model is defined by the appended claims rather than the foregoing description, and thus all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this utility model. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0036] 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 pipe connection clamping device, comprising a first pipe (1) and a second pipe (2), characterized in that, The first pipe (1) is fixedly connected to a first flange (3) at one end near the second pipe (2), and the second pipe (2) is fixedly connected to a second flange (4) at one end near the first pipe (1). A snap-fit ​​assembly is provided on the first pipe (1). The buckle assembly includes a first fixing ring (5), a plug rod (6), a second fixing ring (7), a fixing frame (8), a fixing tube (9), a first spring (10), a push rod (11), and a quick-release mechanism. The inner wall of the first fixing ring (5) is in contact with the outer wall of the first pipe (1). The side of the first fixing ring (5) near the second pipe (2) is fixedly connected to the plug rod (6). The inner wall of the second fixing ring (7) is in contact with the outer wall of the second pipe (2). The side of the second fixing ring (7) away from the first fixing ring (5) is fixedly connected to the fixing frame (8). One end of the fixing tube (9) on the outer wall of the fixing frame (8) is fixedly connected. The inner wall of the fixing tube (9) is fixedly connected to one end of the first spring (10). The movable end of the first spring (10) is fixedly connected to the inner wall of the push rod (11). The push rod (11) is slidably connected to the fixing tube (9).

2. The pipe connection clamping device according to claim 1, characterized in that, The quick-release mechanism includes a movable plate (12), a pressing rod (13), and a lifting rod (14). One side of the movable plate (12) is in contact with one side of the second fixing ring (7). The side of the movable plate (12) near the fixing frame (8) is fixedly connected to one end of the pressing rod (13). The outer wall of the push rod (11) is fixedly connected to one end of the lifting rod (14). The lifting rod (14) is slidably connected to the fixing tube (9). The end of the lifting rod (14) located outside the fixing tube (9) is in contact with one end of the pressing rod (13).

3. A pipe connection clamping device according to claim 2, characterized in that, The second fixing ring (7) is fixedly connected to a second spring (16) on the side near the movable plate (12). One side of the second spring (16) is fixedly connected to one side of the movable plate (12). A protective tube (15) is fixedly connected to one side of the movable plate (12). The outer wall of the protective tube (15) fits into the hole opened in the second fixing ring (7).

4. A pipe connection clamping device according to claim 1, characterized in that, A magnetic plate (17) is fixedly connected to the side of the second fixing ring (7) away from the first fixing ring (5), and one side of the magnetic plate (17) is in contact with the side of the movable plate (12) close to the second fixing ring (7).

5. A pipe connection clamping device according to claim 1, characterized in that, A sealing plate (18) is fixedly connected to the outer wall of the first fixing ring (5), and a sealing frame (19) is fixedly connected to the outer wall of the second fixing ring (7). The inner wall of the sealing frame (19) is in contact with the outer wall of the sealing plate (18).

6. A pipe connection clamping device according to claim 1, characterized in that, The end of the second fixing ring (7) is fixedly connected to the first connecting rod (20), and the end of the first fixing ring (5) is fixedly connected to the second connecting rod (21).

7. A pipe connection clamping device according to claim 1, characterized in that, A sealing ring (22) is provided on the side of the first flange (3) near the second flange (4). A sealing gasket (23) is fixedly connected to the outer wall of the sealing ring (22). The outer wall of the sealing gasket (23) is in contact with one side of the second flange (4).

Citation Information

Patent Citations

  • Pipeline butt joint device

    CN213018212U