Universal connecting structure for pipelines

Abstract

The utility model discloses a pipeline universal connecting structure, which relates to the technical field of pipeline connecting pieces, and comprises a main pipe joint, the main pipe joint is hollow and is provided with a first mounting port for connecting a pipeline, one end, far away from the first mounting port, of the main pipe joint is communicated with a connecting sleeve, and the connecting sleeve is movably connected with a spherical piece. The spherical part is provided with a second mounting opening communicated with the first mounting opening, the connecting sleeve is provided with an annular cavity, the spherical part is located in the annular cavity and abuts against the inner wall of the annular cavity, the end, away from the main pipe connector, of the connecting sleeve is fixedly connected with a limiting ring, and the inner diameter of the limiting ring is smaller than the maximum diameter of the spherical part. The side, close to the main pipe connector, of the limiting ring abuts against a first sealing ring. The pipeline connecting device has the effect of improving the convenience during pipeline connecting.

Description

Technical Field

[0001] The utility model relates to the technical field of pipeline connectors, in particular to a pipeline universal connection structure. Background Art

[0002] In the field of liquid transportation or bulk transport, pipeline transportation is an important mode of transportation. During the installation and construction of pipelines, two pipelines are basically connected through connecting joints. The connecting joints are hollow and have installation holes for connecting to the pipelines at the ends. According to the number of connected pipelines, they are also divided into straight joints, three-way joints and elbow joints, etc. The inclination angle of the elbow joint is usually standardized, and the common angle deflection angles are mainly right angles or 45 degrees.

[0003] Regarding the above-mentioned related technologies, due to the limitations of the installation site, the angle between the two pipes that need to be connected is not fixed. When the angle between the axes of the two pipes is not compatible with the inclination angle of the bevel joint, it is not easy to directly use a bevel joint with a fixed deflection angle for connection. Forced connection can easily cause the pipes to bend and deform, which is inconvenient when connecting the pipes. Utility Model Content

[0004] In order to improve the convenience when connecting pipes, the present application provides a pipe universal connection structure.

[0005] The present application provides a pipeline universal connection structure, which adopts the following technical solution:

[0006] A pipeline universal connection structure comprises a main pipe joint, which is hollow and has a first installation port for connecting a pipe, an end of the main pipe joint away from the first installation port is connected with a connecting sleeve, the connecting sleeve is movably connected with a spherical component, the spherical component has a second installation port connected with the first installation port, the connecting sleeve is provided with an annular cavity, the spherical component is located in the annular cavity and abuts against the inner wall of the annular cavity, an end of the connecting sleeve away from the main pipe joint is fixedly connected with a limiting ring, the inner diameter of the limiting ring is smaller than the maximum diameter of the spherical component, and a first sealing ring is abutted on the side of the limiting ring close to the main pipe joint.

[0007] By adopting the above technical solution, the connecting sleeve limits the spherical part through the annular cavity and the limiting ring, so that the spherical part can rotate in any direction in the annular cavity. At the same time, the sealing between the spherical part and the connecting sleeve is improved by the first sealing ring. When connecting two pipes, the main pipe joint is connected to any pipe through the first installation port, and the spherical part is connected to another pipe through the second installation port. When the spherical part rotates, the axis of the first installation port and the axis of the second installation port generate an angle. By rotating the spherical part at different angles, the angle between the first installation port and the second installation port is adapted to the angle between the two pipes, which is conducive to improving the convenience of connecting pipes.

[0008] Optionally, the first sealing ring is provided with a first arcuate surface adapted to the outer circumference of the spherical component, and the first arcuate surface is in close contact with the outer circumference of the spherical component.

[0009] By adopting the above technical solution, the first arcuate surface is conducive to increasing the contact area between the first sealing ring and the spherical member, thereby improving the sealing effect of the first sealing ring.

[0010] Optionally, a mounting ring is fixedly connected to one end of the main pipe joint away from the first mounting port, the connecting sleeve is provided with an annular groove adapted to the mounting ring, the mounting ring is inserted into the annular groove, and the mounting ring is snap-connected with the connecting sleeve.

[0011] By adopting the above technical solution, the connecting sleeve limits the mounting ring through the annular groove, and the connecting sleeve and the mounting ring are clamped together through interference fit, which makes it convenient to disassemble the connecting sleeve and the main pipe joint, which is conducive to improving the convenience of disassembling and replacing the first sealing ring.

[0012] Optionally, an installation groove is formed at one end of the installation ring away from the main pipe joint, and a sealing ring is provided on the installation ring. The sealing ring is located in the installation groove and fits against the inner wall of the installation groove, and the side of the sealing ring away from the installation ring fits against the inner wall of the annular groove.

[0013] By adopting the above technical solution, the mounting ring limits the sealing ring through the mounting groove, and the sealing ring is beneficial to improving the sealing between the connecting sleeve and the mounting ring.

[0014] Optionally, a second sealing ring is provided in the mounting ring, and two sides of the second sealing ring are respectively abutted against the spherical part and the inner wall of the mounting ring.

[0015] By adopting the above technical solution, the second sealing ring is conducive to improving the sealing between the spherical part and the mounting ring, while reducing the probability of friction between the spherical part and the mounting ring, which affects the service life of the spherical part.

[0016] Optionally, the second sealing ring is provided with a second arcuate surface adapted to the spherical component, and the second arcuate surface is in contact with the outer circle of the spherical component.

[0017] By adopting the above technical solution, the second arcuate surface is conducive to increasing the contact area between the second arcuate surface and the spherical member, thereby improving the sealing effect of the second sealing ring.

[0018] Optionally, a third sealing ring is provided in the connecting sleeve, an inner ring groove is opened on the inner wall of the annular cavity, the third sealing ring is installed in the inner ring groove, and the spherical part passes through the third sealing ring and fits with the third sealing ring.

[0019] By adopting the above technical solution, the connecting sleeve limits the third sealing ring through the annular groove, and then seals the gap between the spherical part and the connecting sleeve through the third sealing ring, which is beneficial to improve the sealing effect between the connecting sleeve and the spherical part.

[0020] Optionally, the third sealing ring is located at the maximum diameter of the spherical member.

[0021] By adopting the above technical solution, the third sealing ring separates the spherical part from the connecting sleeve, which is beneficial to reduce the friction between the spherical part and the connecting sleeve and improve the flexibility of the spherical part when rotating.

[0022] Optionally, a chamfer is provided on a side of the limiting ring close to the spherical member.

[0023] By adopting the above technical solution, when the spherical part is at the maximum deflection angle, the pipe connected to the second mounting port abuts against the limiting ring, and the chamfer is beneficial to increase the contact area between the pipe and the limiting ring, thereby reducing the probability of damage to the pipe due to collision between the limiting ring and the pipe.

[0024] In summary, the present application includes at least one of the following beneficial technical effects:

[0025] 1. The connecting sleeve limits the spherical part through the annular cavity and the limiting ring, so that the spherical part can rotate in any direction in the annular cavity. At the same time, the first sealing ring improves the sealing between the spherical part and the connecting sleeve. When connecting two pipes, the main pipe joint is connected to any pipe through the first installation port, and the spherical part is connected to another pipe through the second installation port. When the spherical part rotates, the axis of the first installation port and the axis of the second installation port form an angle. By rotating the spherical part at different angles, the angle between the first installation port and the second installation port is adapted to the angle between the two pipes, which is conducive to improving the convenience of connecting pipes;

[0026] 2. The connecting sleeve limits the mounting ring through the annular groove, and the connecting sleeve and the mounting ring are connected by interference fit, which makes it convenient to disassemble the connecting sleeve and the main pipe joint, and is conducive to improving the convenience of disassembling and replacing the first sealing ring;

[0027] 3. When the spherical part is at the maximum deflection angle, the pipe connected to the second mounting port abuts against the limiting ring, and the chamfer is conducive to increasing the contact area between the pipe and the limiting ring, thereby reducing the probability of damage to the pipe due to collision between the limiting ring and the pipe. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 The utility model is a schematic diagram of the overall structure of a pipeline universal connection structure.

[0029] Figure 2It is a schematic diagram intended to highlight the connection structure between the main pipe joint and the connecting sleeve.

[0030] Figure 3 yes Figure 2 Enlarged schematic diagram of part A.

[0031] Explanation of the reference numerals: 1. main connector; 11. first mounting port; 12. mounting ring; 121. mounting groove; 122. sealing ring; 13. second sealing ring; 131. second arcuate surface; 2. connecting sleeve; 20. annular cavity; 21. limiting ring; 211. chamfer; 22. first sealing ring; 221. first arcuate surface; 23. annular groove; 24. third sealing ring; 25. inner annular groove; 3. spherical part; 31. second mounting port. DETAILED DESCRIPTION

[0032] The present application is further described in detail below in conjunction with all the accompanying drawings.

[0033] An embodiment of the present application discloses a pipeline universal connection structure. Example

[0034] Reference Figure 1 A pipe universal connection structure includes a main pipe joint 1, a connection sleeve 2 and a spherical member 3. A first mounting port 11 is provided at one end of the main pipe joint 1. The first mounting port 11 has different diameters according to different diameters of the connected pipe. The main pipe joint 1 is hollow and communicates with the pipe through the first mounting port 11.

[0035] Reference Figure 1 and Figure 2 The main pipe joint 1 has a mounting ring 12 fixed to one end away from the first mounting opening 11. The diameter of the mounting ring 12 is larger than the diameter of the main pipe joint 1. The connecting sleeve 2 has an annular groove 23. The annular groove 23 is coaxially arranged with the connecting sleeve 2. The mounting ring 12 is inserted into the annular groove 23 and fits with the inner wall of the annular groove 23. The mounting ring 12 and the annular groove 23 are clamped by interference fit. The main pipe joint 1 limits the connecting sleeve 2 by the mounting ring 12.

[0036] Reference Figure 2 and Figure 3 The end of the mounting ring 12 away from the main pipe joint 1 is provided with a mounting groove 121, the mounting groove 121 is communicated with the annular groove 23, the mounting ring 12 is provided with a sealing ring 122 adapted to the annular groove 23, and the sealing ring 122 is fitted with the mounting ring 12 when inserted into the mounting groove 121. The portion of the sealing ring 122 away from the mounting ring 12 is fitted with the inner wall of the connecting sleeve 2, which is beneficial to improve the sealing effect between the connecting sleeve 2 and the mounting ring 12, and reduce the probability of the medium in the pipeline leaking from between the connecting sleeve 2 and the mounting ring 12.

[0037] Reference Figure 2 and Figure 3 The mounting ring 12 is provided with an annular cavity 20 connected with the first mounting port 11, the spherical member 3 is located in the annular cavity 20, and the maximum diameter of the spherical member 3 is adapted to the inner diameter of the annular cavity 20, and the connecting sleeve 2 is limited by the annular cavity 20. A limiting ring 21 is coaxially fixed to one end of the connecting sleeve 2 away from the mounting ring 12, and the inner diameter of the limiting ring 21 is smaller than the maximum diameter of the spherical member 3. The limiting ring 21 is passed through one end of the spherical member 3 away from the mounting ring 12 and extends in a direction away from the main pipe joint 1.

[0038] Reference Figure 2 and Figure 3 The limiting ring 21 is provided with a first sealing ring 22, and the first sealing ring 22 is located on the side of the limiting ring 21 close to the main pipe joint 1, and the end of the spherical member 3 close to the limiting ring 21 is penetrated by the first sealing ring 22 and fits with the first sealing ring 22. The limiting ring 21 limits the spherical member 3 through the first sealing ring 22, which is conducive to reducing the probability of the spherical member 3 falling from the connecting sleeve 2, and the first sealing ring 22 is conducive to improving the sealing between the connecting sleeve 2 and the spherical member 3.

[0039] Reference Figure 2 and Figure 3 The side of the mounting ring 12 away from the main pipe joint 1 is abutted with the second sealing ring 13, and the end of the spherical member 3 away from the limiting ring 21 is penetrated by the second sealing ring 13 and fits with the second sealing ring 13. The mounting ring 12 cooperates with the spherical member 3 to limit the second sealing ring 13. At the same time, the second sealing ring 13 is conducive to improving the sealing effect between the spherical member 3 and the mounting ring 12, and reducing the probability of leakage of the medium in the pipeline along the gap between the spherical member 3 and the mounting ring 12. At the same time, the second sealing ring 13 is conducive to reducing the direct friction between the spherical member 3 and the mounting ring 12, thereby reducing the probability of damage to the spherical member 3 due to wear.

[0040] Reference Figure 2 and Figure 3 Under the cooperation of the first sealing ring 22, the second sealing ring 13 and the connecting sleeve 2, the spherical member 3 rotates around its own spherical center in any direction. When the first sealing ring 22 or the second sealing ring 13 needs to be replaced, the connecting sleeve 2 and the mounting ring 12 are disassembled so that the connecting sleeve 2 drives the spherical member 3 to separate from the main pipe joint 1, which makes it more convenient to replace and disassemble the first sealing ring 22 and the second sealing ring 13.

[0041] Reference Figure 2 and Figure 3The spherical member 3 is provided with a second installation opening 31 communicating with the first installation opening 11, and the spherical member 3 is connected to another pipe through the second installation opening 31. When there is a certain angle between the pipe connected to the first installation opening 11 and the pipe connected to the second installation opening 31, the second installation opening 31 is deflected by rotating the spherical member 3, so that the angle between the axis of the first installation opening 11 and the axis of the first installation opening 11 is adapted to the angle between the two pipes, which is conducive to improving the convenience of connecting the pipes.

[0042] Reference Figure 2 and Figure 3 The side of the limiting ring 21 close to the center of the circle is provided with a chamfer 211, which points from the limiting ring 21 to the direction of the mounting ring 12, and is inclined from the outer circle of the limiting ring 21 to the center of the circle. When the spherical member 3 is at the maximum deflection angle, the pipe connected to the second mounting port 31 deflects toward the inner wall of the limiting ring 21 and fits with the inner wall of the limiting ring 21. At this time, the chamfer 211 is conducive to increasing the contact area between the pipe and the inner wall of the limiting ring 21, and is conducive to reducing the probability of damage to the pipe due to rigid collision between the pipe and the limiting ring 21.

[0043] Reference Figure 2 and Figure 3 The first sealing ring 22 is provided with a first arc surface 221 near the spherical member 3, and the first arc surface 221 fits with the outer circle of the spherical member 3. The first arc surface 221 is conducive to expanding the contact area between the first sealing ring 22 and the spherical member 3, thereby improving the connection stability between the first sealing ring 22 and the spherical member 3. When the medium pressure passing through the two pipes is relatively large, it has a tendency to push the spherical member 3 closer to the limit ring 21. At this time, the outer circle of the spherical member 3 is further fitted with the first arc surface 221, which is conducive to improving the sealing effect of the first sealing ring 22.

[0044] Reference Figure 2 and Figure 3 The second sealing ring 13 is provided with a second arc surface 131 on one side close to the spherical member 3, and the second arc surface 131 is also in contact with the outer circle of the spherical member 3. The center of the first arc surface 221 coincides with the center of the second arc surface 131, thereby limiting the rotation of the spherical member 3, improving the movement stability of the spherical member 3 when the operator adjusts the deflection angle of the spherical member 3, and the second arc surface 131 is conducive to improving the sealing effect between the second sealing ring 13 and the spherical member 3.

[0045] Reference Figure 2 and Figure 3The connecting sleeve 2 is provided with an inner ring groove 25, which is coaxially arranged with the connecting sleeve 2 and communicated with the annular cavity 20. The connecting sleeve 2 is provided with a third sealing ring 24, which is installed in the inner ring groove 25. The inner diameter of the third sealing ring 24 is adapted to the maximum diameter of the spherical member 3. The spherical member 3 is penetrated by the third sealing ring 24 and fits with the inner wall of the third sealing ring 24. When the spherical member 3 deflects, relative friction occurs with the third sealing ring 24. The third sealing ring 24 is conducive to reducing the friction between the spherical member 3 and the connecting sleeve 2, thereby extending the service life of the spherical member 3. The third sealing ring 24 is conducive to improving the connection sealing between the spherical member 3 and the connecting sleeve 2, thereby reducing the probability of leakage of the medium in the pipeline along the gap between the connecting sleeve 2 and the spherical member 3.

[0046] The implementation principle of a pipe universal connection structure in the embodiment of the present application is as follows: the main pipe joint 1 is connected to the connecting sleeve 2 through the mounting ring 12, so that the mounting ring 12 cooperates with the limiting ring 21 to limit the spherical member 3, and under the cooperation of the first sealing ring 22 and the second sealing ring 13, the spherical member 3 deflects around its own spherical center. When it is necessary to connect two pipes with a certain angle, by rotating the spherical member 3, the angle between the first mounting port 11 and the second mounting port 31 is adapted to the angle between the two pipes, which is conducive to improving the convenience of connecting the pipes.

[0047] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A pipe universal connection structure, comprising a main pipe joint (1), the main pipe joint (1) is hollow and has a first installation port (11) for connecting a pipe, characterized in that: The end of the main pipe joint (1) away from the first installation opening (11) is connected to a connecting sleeve (2), the connecting sleeve (2) is movably connected to a spherical component (3), the spherical component (3) is provided with a second installation opening (31) connected to the first installation opening (11), the connecting sleeve (2) is provided with an annular cavity (20), the spherical component (3) is located in the annular cavity (20) and abuts against the inner wall of the annular cavity (20), the end of the connecting sleeve (2) away from the main pipe joint (1) is fixedly connected to a limiting ring (21), the inner diameter of the limiting ring (21) is smaller than the maximum diameter of the spherical component (3), and the side of the limiting ring (21) close to the main pipe joint (1) abuts against a first sealing ring (22).

2. A pipeline universal connection structure according to claim 1, characterized in that: The first sealing ring (22) is provided with a first arcuate surface (221) adapted to the outer circumference of the spherical component (3), and the first arcuate surface (221) is in close contact with the outer circumference of the spherical component (3).

3. The pipeline universal connection structure according to claim 1, characterized in that: The end of the main pipe joint (1) away from the first installation opening (11) is fixedly connected to a mounting ring (12); the connecting sleeve (2) is provided with an annular groove (23) adapted to the mounting ring (12); the mounting ring (12) is inserted into the annular groove (23), and the mounting ring (12) is clamped with the connecting sleeve (2).

4. A pipeline universal connection structure according to claim 3, characterized in that: An installation groove (121) is formed at one end of the installation ring (12) away from the main pipe joint (1). The installation ring (12) is provided with a sealing ring (122). The sealing ring (122) is located in the installation groove (121) and is in contact with the inner wall of the installation groove (121). The side of the sealing ring (122) away from the installation ring (12) is in contact with the inner wall of the annular groove (23).

5. The pipeline universal connection structure according to claim 3, characterized in that: A second sealing ring (13) is arranged inside the mounting ring (12), and two sides of the second sealing ring (13) are respectively in contact with the spherical component (3) and the inner wall of the mounting ring (12).

6. A pipeline universal connection structure according to claim 5, characterized in that: The second sealing ring (13) is provided with a second arcuate surface (131) adapted to the spherical component (3), and the second arcuate surface (131) is in close contact with the outer circle of the spherical component (3).

7. The pipeline universal connection structure according to claim 1, characterized in that: A third sealing ring (24) is arranged in the connecting sleeve (2), an inner ring groove (25) is opened on the inner wall of the annular cavity (20), the third sealing ring (24) is installed in the inner ring groove (25), and the spherical member (3) is passed through the third sealing ring (24) and fits the third sealing ring (24).

8. The pipeline universal connection structure according to claim 7, characterized in that: The third sealing ring (24) is located at the maximum diameter of the spherical member (3).

9. The pipeline universal connection structure according to claim 1, characterized in that: A chamfer (211) is formed on one side of the limiting ring (21) close to the spherical member (3).

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