Natural gas pipeline connection point splicing structure

Abstract

The utility model discloses a natural gas pipeline connection point splicing structure, which belongs to the technical field of natural gas pipelines, and comprises a connecting piece, the left side and the right side of the connecting piece are respectively provided with a pipeline I and a pipeline II, and the left end of the pipeline I and the right end of the pipeline II extend into the connecting piece; the grooves are formed in the first pipeline and the second pipeline, the fixing rings are arranged on the inner side walls of the connecting pieces, and the locking rings in the fixing rings are matched with the insertion cavities in the grooves, so that the stability of pipeline connection can be greatly improved, and the pipeline can be prevented from being damaged when the pipelines bear internal pressure and possible external interference in the natural gas conveying process. In this way, the pipeline can be effectively prevented from axially moving or radially shaking in the connecting piece, the stability of a connecting point is ensured, meanwhile, the fixing ring is matched with the outline of the groove, it is further ensured that the pipeline is tightly attached to the connecting piece, and connection is more stable and reliable.

Description

Technical Field

[0001] The utility model relates to the technical field of natural gas pipelines, in particular to a natural gas pipeline connection point splicing structure. Background Art

[0002] Natural gas refers to all gases that exist naturally in nature, including gases formed by various natural processes in the atmosphere, hydrosphere, and lithosphere. Natural gas is stored in porous rock formations underground, and a small amount is also found in coal seams. It is a high-quality fuel and chemical raw material. Its main use is as fuel. It can be used to make carbon black, chemicals, and liquefied petroleum gas. Propane and butane produced from natural gas are important raw materials for modern industry.

[0003] In the existing technology, the connection methods for natural gas pipelines are mostly flange connection and welding connection. The above connection methods have the characteristics of simple operation and low construction cost. However, due to the non-uniform laying environment of natural gas pipelines, harsh environments may occur, and traditional connection methods cannot fully ensure the stability of the connection. Utility Model Content

[0004] Purpose of the utility model: The purpose of the utility model is to provide a solution to the problem that the connection method of the natural gas pipeline in the existing technology cannot fully ensure the stability of the connection.

[0005] Technical solution: A natural gas pipeline connection point splicing structure, including a connector, with a first pipeline and a second pipeline respectively provided on the left and right sides of the connector, the left end of the first pipeline and the right end of the second pipeline both extending into the interior of the connector;

[0006] The left and right sides of the pipe 1 and the pipe 2 are both provided with grooves, and the inner side walls of the connecting piece are fixedly connected with a fixing ring, and the inner side walls of the fixing ring are respectively in contact with the two adjacent grooves, and the interior of the fixing ring is symmetrically provided with an extrusion cavity, and the interiors of the two extrusion cavities are both slidably connected with a piston plate 1, and the outer side walls of the two piston plates 1 are both fixedly connected with a locking ring, and the inner side walls of the multiple grooves are symmetrically provided with plug-in cavities, and the multiple locking rings extend to the interiors of the multiple plug-in cavities at one end away from the multiple piston plates 1.

[0007] Furthermore, the outer side walls of the pipe 1 and the pipe 2 are fixedly connected with fixing plates, and the opposite sides of the two fixing plates are fixedly connected with sealing gaskets.

[0008] Furthermore, the profile of the groove matches the profile of the fixing ring.

[0009] Furthermore, an air cavity is integrally formed at the rear interior of the connecting piece, and a piston plate 2 is slidably connected to the interior of the air cavity. A receiving groove is provided on the inner rear surface of the connecting piece and located behind the air cavity. A connecting rod is fixedly connected to the rear surface of the piston plate 2, and the rear end of the connecting rod extends to the interior of the receiving groove and is fixedly connected to a pull plate. An air delivery groove is provided on the inner front surface of the air cavity and the interiors of the two extrusion cavities.

[0010] Furthermore, a control cavity is provided inside the pull plate, and fixed grooves are provided on the inner lower surface and the inner upper surface of the storage groove, and an operating handle is provided on the rear surface of the pull plate, and a rotating rod is fixedly connected to the center of the front surface of the operating handle, and the rear end of the rotating rod is rotatably connected to the inner rear surface of the control cavity through a rotating shaft, and the outer side wall of the rotating rod is fixedly connected to a rotating disk, and sliding plates are slidably connected to the upper and lower parts of the control cavity, and the opposite sides of the sliding plates are fixedly connected with protrusions, and the opposite sides of the two protrusions extend to the inside of the two fixed grooves respectively, and the upper and lower parts of the rear surface of the rotating disk are rotatably connected to support rods through a rotating shaft, and the opposite ends of the two support rods are rotatably connected to the opposite sides of the two sliding plates through a rotating shaft.

[0011] Furthermore, a torsion spring is sleeved on the outer side wall of the rotating rod, and two ends of the torsion spring are fixedly connected to the rear surface of the rotating disk and the inner front surface of the control cavity respectively.

[0012] Furthermore, the inner front surface and the inner rear surface of the control cavity and the opposite sides of the two sliding plates are fixedly connected with limiting strips.

[0013] Furthermore, the inner side wall of the fixing ring is fixedly connected to a connecting block, the inner side wall of the connecting block is fixedly connected to a sleeve, the two ends of the sleeve extend to the interior of the pipe one and the pipe two respectively, the outer side wall of the sleeve is fixedly connected to a sealing sleeve, and the outer side wall of the sealing sleeve contacts the inner side walls of the pipe one and the pipe two.

[0014] Beneficial effects:

[0015] By providing grooves on pipes one and two, and providing a fixing ring on the inner side wall of the connector, the locking ring inside the fixing ring cooperates with the inserting cavity in the groove, which greatly enhances the stability of the pipeline connection. During the natural gas transportation process, when the pipeline is subjected to internal pressure and possible external interference, this method can effectively prevent the pipeline from axial movement or radial shaking in the connector, ensuring the stability of the connection point. At the same time, the fixing ring matches the groove profile, further ensuring a close fit between the pipeline and the connector, making the connection more stable and reliable, and avoiding the problem of loose connection caused by local uneven force.

[0016] The flow of gas in the air cavity can be controlled by operating the pull plate. The air cavity and the extrusion cavity are connected through the gas transmission groove. The pull plate drives the piston plate 2 to move, thereby changing the air pressure in the air cavity, and then controlling the movement of the piston plate 1 in the extrusion cavity, thereby realizing the separation of the locking ring and the plug-in cavity, which is convenient for disassembly of the pipeline. During installation, the locking ring can also be conveniently inserted into the plug-in cavity through this structure, making the installation process more convenient and efficient. At the same time, the fixing and release of the pull plate can be conveniently controlled by the operating handle. The design of the operating handle allows construction personnel to easily operate the pull plate, and can complete the control of the pull plate with one hand when installing or disassembling the pipeline, further improving the convenience of construction. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0018] Figure 2 It is an overall front cross-sectional schematic diagram of the utility model;

[0019] Figure 3 It is a schematic side view of the overall cross section of the utility model;

[0020] Figure 4 This utility model Figure 3 Schematic diagram of the enlarged structure at point A in the middle.

[0021] In the figure: 1. Connecting piece; 2. Pipe 1; 3. Pipe 2; 4. Groove; 5. Fixing ring; 6. Extrusion chamber; 7. Piston plate 1; 8. Locking ring; 9. Connecting chamber; 10. Fixing plate; 11. Sealing gasket; 12. Air chamber; 13. Piston plate 2; 14. Receiving groove; 15. Connecting rod; 16. Pull plate; 17. Air delivery groove; 18. Control chamber; 19. Fixing groove; 20. Operating handle; 21. Rotating rod; 22. Rotating disc; 23. Sliding plate; 24. Bump; 25. Support rod; 26. Torsion spring; 27. Limiting strip; 28. Connecting block; 29. ​​Sleeve; 30. Sealing sleeve. DETAILED DESCRIPTION

[0022] In order to make the technical solution of the present invention clearer, the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0023] Example 1

[0024] like Figure 1 and Figure 2 As shown, the outer walls of the pipe 1 2 and the pipe 2 3 are both fixedly connected with a fixing plate 10, and the opposite sides of the two fixing plates 10 are both fixedly connected with a sealing gasket 11;

[0025] The two fixing plates 10 can help maintain the tightness of the connection between pipeline 1 2 and pipeline 2 3. At the same time, the two sealing gaskets 11 can prevent natural gas from leaking from the connection point of pipeline 1 2 and pipeline 2 3 into the surrounding environment, thereby ensuring the safety and efficiency of natural gas transportation.

[0026] like Figure 1-Figure 3 As shown, a natural gas pipeline connection point splicing structure is provided, including a connector 1, a pipe 1 2 and a pipe 2 3 are respectively provided on the left and right sides of the connector 1, the left end of the pipe 1 2 and the right end of the pipe 2 3 both extend into the interior of the connector 1, grooves 4 are provided on the left and right sides of the pipe 1 2 and the pipe 2 3, a fixing ring 5 is fixedly connected to the inner side wall of the connector 1, the inner side walls of the fixing ring 5 are respectively in contact with two adjacent grooves 4, extrusion chambers 6 are symmetrically provided inside the fixing ring 5, the interiors of the two extrusion chambers 6 are both slidably connected to a piston plate 1 7, the outer side walls of the two piston plates 1 7 are both fixedly connected to a locking ring 8, the inner side walls of the multiple grooves 4 are symmetrically provided with plug-in chambers 9, and the ends of the multiple locking rings 8 away from the multiple piston plates 1 7 respectively extend into the interiors of the multiple plug-in chambers 9;

[0027] By inserting one end of pipe 1 2 and pipe 2 3 into the interior of connector 1 at the same time, and rotating pipe 1 2 and pipe 2 3 to engage the groove 4 on their outer sides with the fixing ring 5, and then extending multiple locking rings 8 into the interior of multiple plug-in cavities 9 respectively, pipe 1 2 and pipe 2 3 can be fixed inside connector 1, thereby completing quick installation.

[0028] like Figure 2 As shown, the inner side wall of the fixing ring 5 is fixedly connected to a connecting block 28, and the inner side wall of the connecting block 28 is fixedly connected to a sleeve 29. The two ends of the sleeve 29 extend into the interior of the pipe 1 2 and the pipe 2 3 respectively. The outer side wall of the sleeve 29 is fixedly connected to a sealing sleeve 30, and the outer side wall of the sealing sleeve 30 contacts the inner side walls of the pipe 1 2 and the pipe 2 3.

[0029] When pipe 1 2 and pipe 2 3 are inserted into the interior of the connector 1 at the same time, the sleeve 29 is simultaneously inserted into the pipe openings of pipe 1 2 and pipe 2 3. Then, the sealing sleeve 30 is tightly fitted with the pipe openings of pipe 1 2 and pipe 2 3 to further prevent natural gas leakage, thereby ensuring the safety and efficiency of natural gas transportation.

[0030] like Figure 3 and Figure 4As shown, an air cavity 12 is integrally formed at the rear of the interior of the connecting member 1, and a piston plate 2 13 is slidably connected to the interior of the air cavity 12. A receiving groove 14 is provided on the inner rear surface of the connecting member 1 and located behind the air cavity 12. A connecting rod 15 is fixedly connected to the rear surface of the piston plate 2 13. The rear end of the connecting rod 15 extends to the interior of the receiving groove 14 and is fixedly connected to a pull plate 16. An air delivery groove 17 is provided on the inner front surface of the air cavity 12 and the interior of the two extrusion chambers 6. A control chamber 18 is provided inside the pull plate 16. A fixing groove 19 is provided on the inner lower surface and the inner upper surface of the receiving groove 14. An operating handle 20 is provided on the rear surface of the pull plate 16. A rotating rod 21 is fixedly connected to the center of the front surface of the operating handle 20. The rear end of 21 is rotatably connected to the inner rear surface of the control chamber 18 via a rotating shaft, the outer side wall of the rotating rod 21 is fixedly connected to a rotating disc 22, and the upper and lower parts of the control chamber 18 are slidably connected to sliding plates 23, and the opposite sides of the sliding plates 23 are fixedly connected to protrusions 24, and the opposite sides of the two protrusions 24 extend to the inside of the two fixed grooves 19 respectively. The upper and lower parts of the rear surface of the rotating disc 22 are rotatably connected to support rods 25 via a rotating shaft, and the opposite ends of the two support rods 25 are rotatably connected to the opposite sides of the two sliding plates 23 via a rotating shaft. The outer side wall of the rotating rod 21 is provided with a torsion spring 26, and the two ends of the torsion spring 26 are fixedly connected to the rear surface of the rotating disc 22 and the inner front surface of the control chamber 18 respectively;

[0031] The construction personnel drives the rotating disc 22 to rotate simultaneously by turning the operating handle 20. The rotating disc 22 rotates through the two support rods 25 to pull the two sliding plates 23 to slide relative to each other, so that the two protrusions 24 are pulled out of the two fixing grooves 19. At this time, the fixation between the receiving groove 14 and the pulling plate 16 can be cancelled. After that, the construction personnel pull the pulling plate 16 outward by holding the operating handle 20 to drive the piston plate 2 13 to slide, thereby controlling the sliding of multiple piston plates 1 7 at the same time through the gas transmission groove 17, and pulling multiple locking rings 8 out of the interior of multiple plug-in chambers 9 through multiple piston plates 1 7, so that the pipe 1 2 and pipe 2 can be cancelled. 3 is fixed to the connector 1 to complete the quick disassembly of the pipeline, which is convenient for later maintenance and other operations. When the operation is completed, one end of pipe 1 2 and pipe 2 3 is inserted into the interior of the connector 1 at the same time, and then the two protrusions 24 are retracted by rotating the rotating disk 22. Then, the pull plate 16 is pushed to the inside of the receiving groove 14, and the multiple locking rings 8 can be reinserted into the interior of the multiple plug-in cavities 9. At the same time, the set rotating disk 22 is loosened, and the rotating disk 22 can be reset by the set torsion spring 26, so that the two protrusions 24 are reinserted into the interior of the two fixing grooves 19, and the locking between pipe 1 2 and pipe 2 3 and the connector 1 is completed.

[0032] like Figure 4As shown, the inner front surface and the inner rear surface of the control cavity 18 and the opposite sides of the two sliding plates 23 are fixedly connected to the limiting strips 27;

[0033] The multiple limiting strips 27 can effectively control the sliding distance of the two sliding plates 23, thereby increasing the accuracy of the device.

[0034] like Figure 2 and Figure 3 As shown, the profile of the groove 4 matches the profile of the fixing ring 5;

[0035] The profile of the groove 4 matches the profile of the fixing ring 5, so that after pipe 1 2 and pipe 2 3 are inserted into the interior of the connector 1 and fixed, the fixation between pipe 1 2 and pipe 2 3 and the connector 1 is more stable, preventing pipe 1 2 and pipe 2 3 from shaking after being connected and fixed.

[0036] The above-described embodiments merely represent several implementation methods of the present invention. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that a person skilled in the art would be able to make various modifications and improvements without departing from the concept of the present invention, and these modifications and improvements fall within the scope of protection of the present invention. Therefore, the scope of protection of the present invention shall be determined by the appended claims.

Claims

1. A natural gas pipeline connection point splicing structure, comprising a connector (1), characterized in that: A pipe 1 (2) and a pipe 2 (3) are respectively provided on the left and right sides of the connecting member (1), and the left end of the pipe 1 (2) and the right end of the pipe 2 (3) both extend into the interior of the connecting member (1); The left and right sides of the pipe 1 (2) and the pipe 2 (3) are both provided with grooves (4), the inner side wall of the connecting piece (1) is fixedly connected with a fixing ring (5), the inner side wall of the fixing ring (5) is in contact with two adjacent grooves (4), the interior of the fixing ring (5) is symmetrically provided with an extrusion cavity (6), the interiors of the two extrusion cavities (6) are both slidably connected with a piston plate 1 (7), the outer side walls of the two piston plates 1 (7) are both fixedly connected with a locking ring (8), the inner side walls of the plurality of grooves (4) are symmetrically provided with an insert cavity (9), and the plurality of locking rings (8) extend from one end of the plurality of piston plates 1 (7) to the interior of the plurality of insert cavities (9).

2. A natural gas pipeline connection point splicing structure according to claim 1, characterized in that: The outer side walls of the pipe 1 (2) and the pipe 2 (3) are both fixedly connected with a fixing plate (10), and the opposite sides of the two fixing plates (10) are both fixedly connected with a sealing gasket (11).

3. A natural gas pipeline connection point splicing structure according to claim 1, characterized in that: The profile of the groove (4) matches the profile of the fixing ring (5).

4. A natural gas pipeline connection point splicing structure according to claim 1, characterized in that: An air cavity (12) is integrally formed at the rear of the interior of the connecting member (1), and a piston plate 2 (13) is slidably connected to the interior of the air cavity (12). A receiving groove (14) is provided on the rear surface of the interior of the connecting member (1) and located behind the air cavity (12). A connecting rod (15) is fixedly connected to the rear surface of the piston plate 2 (13), and the rear end of the connecting rod (15) extends to the interior of the receiving groove (14) and is fixedly connected to a pull plate (16). An air delivery groove (17) is provided on the front surface of the interior of the air cavity (12) and the interiors of the two extrusion cavities (6).

5. A natural gas pipeline connection point splicing structure according to claim 4, characterized in that: A control cavity (18) is provided inside the pull plate (16), and a fixing groove (19) is provided on the inner lower surface and the inner upper surface of the receiving groove (14). An operating handle (20) is provided on the rear surface of the pull plate (16), and a rotating rod (21) is fixedly connected to the center of the front surface of the operating handle (20). The rear end of the rotating rod (21) is rotatably connected to the inner rear surface of the control cavity (18) via a rotating shaft, and a rotating disc (22) is fixedly connected to the outer wall of the rotating rod (21). The control chamber (18) is slidably connected to a sliding plate (23) at the upper and lower parts thereof, and the opposite sides of the sliding plate (23) are fixedly connected to a protrusion (24), and the opposite sides of the two protrusions (24) respectively extend to the inside of the two fixed grooves (19), and the upper and lower parts of the rear surface of the rotating disc (22) are rotatably connected to a support rod (25) via a rotating shaft, and the opposite ends of the two support rods (25) are rotatably connected to the opposite sides of the two sliding plates (23) via a rotating shaft.

6. A natural gas pipeline connection point splicing structure according to claim 5, characterized in that: The outer wall of the rotating rod (21) is sleeved with a torsion spring (26), and the two ends of the torsion spring (26) are fixedly connected to the rear surface of the rotating disc (22) and the inner front surface of the control chamber (18) respectively.

7. A natural gas pipeline connection point splicing structure according to claim 5, characterized in that: The inner front surface and the inner rear surface of the control chamber (18) and the opposite sides of the two sliding plates (23) are fixedly connected to the limiting strips (27).

8. The natural gas pipeline connection point splicing structure according to claim 1, characterized in that: The inner side wall of the fixing ring (5) is fixedly connected to a connecting block (28), the inner side wall of the connecting block (28) is fixedly connected to a sleeve (29), the two ends of the sleeve (29) respectively extend to the interior of the pipe 1 (2) and the pipe 2 (3), the outer side wall of the sleeve (29) is fixedly connected to a sealing sleeve (30), and the outer side wall of the sealing sleeve (30) contacts the inner side walls of the pipe 1 (2) and the pipe 2 (3).

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