Quick plugging device for underground pipeline

Abstract

The invention relates to the technical field of pipeline leakage sealing, in particular to a quick plugging device for an underground pipeline, which comprises a fitting part for fitting the pipeline, the fitting part is arc-shaped, the fitting part corresponds to the pipeline in radian, a plugging rod is slidably connected to the fitting part, a sliding pipe is arranged on the fitting part, the plugging rod is located in the sliding pipe, and the plugging rod is connected with the sliding pipe. The end, close to the pipeline, of the leaking stoppage rod is provided with an attaching piece used for being attached to the inner wall of the pipeline. When leaking stoppage is conducted, leakage holes of different sizes can be sealed, and applicability is high.

Description

Technical Field

[0001] The present application relates to the technical field of pipeline leakage sealing, and in particular to a downhole pipeline rapid leakage plugging device. Background Art

[0002] In mining production, underground pipelines are important facilities for transporting fluids. However, due to pipeline aging, corrosion, wear or external force damage, pipeline leakage accidents occur from time to time, which not only affects production but also may cause safety accidents. At present, underground pipeline plugging mainly adopts traditional methods such as welding and flange connection, but these methods have the disadvantages of complex operation, long time consumption and need for professional operation.

[0003] For related technology, please refer to the Chinese patent with announcement number CN2692464Y, which discloses a quick leak plugging device for oil, gas and water pipelines. The leak plugging device is mainly composed of a fixed bracket and a clamping screw. The front end of the clamping screw is provided with a connecting cap and is connected to the clamping pad as a whole. A sealing gasket is provided under the clamping pad.

[0004] With respect to the above-mentioned related technologies, the sizes of the sealing gasket and the compression pad of the leak plugger are fixed, but when a pipeline leaks, the size of the leakage point is usually not fixed. If the diameter of the leakage hole is too small, the above-mentioned leak plugger cannot be used. If the diameter of the leakage hole is too large, it may cause the diameter to be larger than the sealing gasket, and the applicability is low. Summary of the invention

[0005] In order to improve the applicability of a leak-plugging device, the present application provides a downhole pipeline rapid leak-plugging device.

[0006] The present application provides a downhole pipeline rapid leak plugging device, which adopts the following technical solution: A downhole pipeline rapid plugging device comprises a fitting part for fitting the pipeline, the fitting part is arranged in an arc shape, the fitting part corresponds to the curvature of the pipeline, a plugging rod is slidably connected to the fitting part, a sliding tube is arranged on the fitting part, the plugging rod is located inside the sliding tube, and a fitting sheet for fitting with the inner wall of the pipeline is arranged at one end of the plugging rod close to the pipeline.

[0007] By adopting the above technical scheme, when plugging a leak, the bonding sheet is folded in half, and then the folded bonding sheet is placed inside the leakage hole, and then the bonding part is bonded to the pipe, thereby sealing the outside of the leakage hole of the pipe, and then the bonding sheet can be operated to be unfolded, and then the operating sliding tube can be slid in a direction away from the pipe, and the bonding sheet is bonded to the leakage hole of the pipe, and then the inside of the leakage hole of the pipe is sealed with the bonding sheet, thereby completing the sealing of the pipe. When placing the bonding sheet inside the pipe, the bonding sheet can be folded in half in advance, and the folded bonding sheet occupies less space, and can be sealed in leakage holes of different sizes, and has high applicability.

[0008] Optionally, a binding belt is provided at one end of the fitting portion, and a binding buckle adapted to the binding belt is provided at the other end of the fitting portion.

[0009] By adopting the above technical solution, when fixing the fitting part, the binding belt can be manipulated to surround the pipe, and then the binding belt can be placed inside the binding buckle, and then the binding belt can be continued to be pulled to fix the fitting part on the pipe, thereby completing the fixation of the fitting part, with a simple structure and convenient fixation.

[0010] Optionally, the fitting portion is provided with a threaded hole, the leak-proof rod includes a threaded portion, the threaded portion is provided with a circumferential thread, and the threaded portion is threadedly connected to the fitting portion.

[0011] By adopting the above technical solution, after the fitting part is placed inside the leakage hole, the plugging rod is operated to rotate, and the fitting piece moves toward the leakage hole until the fitting piece fits with the leakage point to complete the plugging of the pipeline. The structure is simple and plugging is convenient.

[0012] Optionally, the fitting sheet is also arranged in an arc shape, and the fitting sheet is adapted to the curvature of the pipe.

[0013] By adopting the above technical solution, when the bonding sheet abuts against the inner wall of the pipe, the bonding effect of the bonding sheet on the inner wall of the pipe can be improved, thereby improving the leak-proofing effect.

[0014] Optionally, the leak-proof rod includes a cleaning portion, which is located below the threaded portion, and a plurality of cleaning brushes for cleaning the pipe hole wall are arranged around the cleaning portion.

[0015] By adopting the above technical scheme, as the plugging rod rotates, the cleaning brush rotates together with the plugging rod, and the cleaning brush cleans the hole wall and the surrounding area of ​​the leakage hole of the pipeline. As the plugging rod continues to rotate, the fitting sheet is moved to a position fitted with the leakage hole, and the leakage hole of the pipeline is plugged, completing the plugging of the leakage hole, thereby improving the plugging effect of the leakage hole and reducing the occurrence of plugging problems due to excessive impurities.

[0016] Optionally, the plugging rod is slidably connected to a driving rod along its length direction, a sliding block is provided at one end of the driving rod close to the fitting sheet, both ends of the sliding block are rotatably connected to two swing leaves, the fitting sheet includes a left sheet and a right sheet, the left sheet is fixedly connected to one of the swing leaves, and the right sheet is fixedly connected to the other swing leaf, one end of the plugging rod close to the fitting sheet is rotatably connected to two rocker rods, the rocker rods include a rod one and a rod two, rod one is rotatably connected to one side of the plugging rod, rod two is rotatably connected to the other side of the plugging rod, the other end of rod one is rotatably connected to the left sheet, and the other end of rod two is rotatably connected to the right sheet.

[0017] By adopting the above technical solution, when operating the cleaning brush to clean the pipeline, or before placing the bonding sheet into the leakage hole of the pipeline, the driving rod can be operated to move in the direction away from the pipeline, thereby driving the sliding block to move in the direction away from the pipeline, thereby driving the two swing leaves to move in the direction of approaching each other, thereby driving the left sheet to move in the direction of approaching the right sheet, and then folding the bonding sheet in half to reduce the area of ​​the bonding sheet. The folded bonding sheet occupies less space and can be sealed in leakage holes of different sizes, thereby improving the applicability of the leak-proof device.

[0018] Optionally, a sliding hole is provided on the plugging rod, and a picking portion is vertically arranged on the driving rod, which extends through the sliding hole to the outside of the plugging rod. The sliding hole includes a vertical hole and two horizontal holes formed on the plugging rod, the two horizontal holes are interconnected with the vertical hole, and the two horizontal holes are vertically arranged with the vertical hole.

[0019] By adopting the above technical solution, when the leak-proof rod is manipulated to move and thereby drive the bonding sheet to be folded in half, the picking-up part is manipulated to slide in the vertical hole, thereby driving the driving rod to slide inside the leak-proof rod. When it moves to the horizontal hole, the picking-up part can be moved into the horizontal hole to limit the driving rod. When the bonding sheet needs to be unfolded, the picking-up part can be manipulated to restore. The structure is simple, the operation is convenient, and the convenience is high.

[0020] Optionally, a hexagonal protrusion is provided on a side of the leak-proof rod away from the bonding sheet.

[0021] By adopting the above technical solution, the user puts the hexagonal wrench on the outside of the hexagonal protrusion, and then rotates the hexagonal wrench to drive the hexagonal protrusion and the plugging rod to rotate, which has a simple structure and high stability.

[0022] In summary, the present application includes at least one of the following beneficial technical effects: 1. When plugging a leak, the bonding sheet is folded in half, and then the folded bonding sheet is placed inside the leaking hole, and then the bonding part is bonded to the pipe, thereby sealing the outside of the leaking hole of the pipe, and then the bonding sheet can be operated to be unfolded, and then the operating sliding tube can be slid in a direction away from the pipe, and the bonding sheet is bonded to the leaking hole of the pipe, and then the inside of the leaking hole of the pipe is sealed with the bonding sheet, and the sealing of the pipe is completed. When the bonding sheet is placed inside the pipe, the bonding sheet can be folded in half in advance, and the folded bonding sheet occupies less space, and can be sealed in leaking holes of different sizes, and has high applicability; 2. When operating the cleaning brush to clean the pipeline, or putting the bonding sheet in front of the leakage hole of the pipeline, the driving rod can be operated to move in the direction away from the pipeline, thereby driving the sliding block to move in the direction away from the pipeline, thereby driving the two swing leaves to move in the direction of approaching each other, thereby driving the left sheet to move in the direction of approaching the right sheet, and then folding the bonding sheet in half to reduce the area of ​​the bonding sheet. The folded bonding sheet occupies less space and can be sealed in leakage holes of different sizes, thereby improving the applicability of the leak plugging device; 3. As the plugging rod rotates, the cleaning brush rotates with the plugging rod, and the cleaning brush cleans the hole wall and the surrounding area of ​​the leakage hole of the pipe. As the plugging rod continues to rotate, the fitting sheet is moved to a position that fits the leakage hole, thereby plugging the leakage hole of the pipe, completing the plugging of the leakage hole, thereby improving the plugging effect of the leakage hole and reducing the occurrence of plugging problems due to excessive impurities. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 The present invention is a cross-sectional schematic diagram of a downhole pipeline rapid leak plugging device.

[0024] Figure 2 yes Figure 1 Enlarged schematic diagram of part A.

[0025] Figure 3 The present invention is a schematic diagram of the overall structure of a downhole pipeline rapid leak plugging device.

[0026] Figure 4 yes Figure 3 Schematic diagram of the enlarged portion B.

[0027] Explanation of the reference numerals: 100, pipe; 200, leakage hole; 1, fitting part; 11, leak-proof rod; 12, sliding tube; 13, binding belt; 131, binding buckle; 14, threaded hole; 15, threaded part; 16, cleaning part; 17, cleaning brush; 2, driving rod; 21, sliding block; 22, rod one; 23, rod two; 24, swing leaf; 25, fitting piece; 251, left piece; 252, right piece; 3, sliding hole; 31, horizontal hole; 311, limiting hole one; 312, limiting hole two; 32, vertical hole; 4, hexagonal protrusion; 5, picking up part; 6, clearance groove. DETAILED DESCRIPTION

[0028] The present application is further described in detail below in conjunction with all the accompanying drawings.

[0029] The embodiment of the present application discloses a downhole pipeline rapid leak plugging device.

[0030] Reference Figure 1 and Figure 2, a downhole pipeline rapid leak plugging device includes a fitting portion 1 for fitting the outer wall of the pipeline 100, the fitting portion 1 is arranged in an arc shape, and the fitting portion 1 corresponds to the curvature of the pipeline 100, and a plugging rod 11 is slidably connected to the fitting portion 1, and a sliding tube 12 is arranged on the fitting portion 1, and the plugging rod 11 is located inside the sliding tube 12, and a fitting sheet 25 for fitting with the inner wall of the pipeline 100 is arranged at one end of the plugging rod 11 close to the pipeline 100, and a driving component for driving the bonding sheet 25 to fold in half is arranged inside the plugging rod 11. Before placing the plugging rod 11 into the leakage hole 200, the driving component is first operated to drive the bonding sheet 25 to fold in half, thereby reducing the space occupied by the bonding sheet 25, and then the folded bonding sheet 25 can be placed from the leakage hole 200 to the inside of the pipeline 100, which can seal leakage holes 200 of different sizes, and has high applicability.

[0031] Reference Figure 3 and Figure 4 The driving assembly includes a driving rod 2 which is slidably connected along the length direction of the plugging rod 11. A sliding hole 3 is provided on the plugging rod 11. A picking portion 5 is vertically arranged on the driving rod 2. The picking portion 5 extends to the outside of the plugging rod 11 through the sliding hole 3. The sliding hole 3 includes a vertical hole 32 and two horizontal holes 31 provided on the plugging rod 11. The two horizontal holes 31 are interconnected with the vertical hole 32. The two horizontal holes 31 are perpendicular to the vertical holes 32. Before the fitting sheet 25 is placed into the pipeline 100, the picking portion 5 is first operated to pull along the length direction of the vertical hole 32, thereby driving the driving rod 2 to move inside the plugging rod 11.

[0032] Reference Figure 2 and Figure 4 The end of the driving rod 2 close to the fitting sheet 25 is rotatably connected to a sliding block 21, and the two ends of the sliding block 21 are rotatably connected to two swing leaves 24. The fitting sheet 25 includes a left sheet 251 and a right sheet 252. The left sheet 251 is fixedly connected to one of the swing leaves 24, and the right sheet 252 is fixedly connected to the other swing leaf 24. The end of the plugging rod 11 close to the fitting sheet 25 is rotatably connected to two swing rods, and the swing rods include a rod 1 22 and a rod 23. The rod 1 22 is rotatably connected to one side of the plugging rod 11, and the rod 23 is rotatably connected to the plugging rod 11, the other end of rod 1 22 is rotatably connected to the left piece 251, and the other end of rod 23 is rotatably connected to the right piece 252; as the driving rod 2 drives the sliding block 21 to move away from the pipeline 100, it drives the two swing leaves 24 to move towards each other, and then drives the left piece 251 to move towards the right piece 252, and then folds the bonding sheet 25 in half to reduce the area of ​​the bonding sheet 25. The space occupied by the folded bonding sheet 25 is smaller.

[0033] The horizontal hole 31 located at the top is set as a limiting hole 311. When the picking-up part 5 is moved to the inside of the limiting hole 311, the picking-up part 5 can be limited, so that the two swing leaves 24 drive the bonding sheet 25 to always keep the folded state.

[0034] Reference Figure 2 and Figure 3 , and then the folded fitting sheet 25 can be manipulated to move to the inside of the leakage hole 200, and the fitting part 1 can be moved to a position that fits with the pipe 100; a binding belt 13 is provided at one end of the fitting part 1, and a binding buckle 131 adapted to the binding belt 13 is provided at the other end of the fitting part 1, and then the fitting part 1 can be fixed, and the binding belt 13 can be manipulated to surround the pipe 100, and then the binding belt 13 is placed inside the binding buckle 131, and then the binding belt 13 can be continued to be pulled to fix the fitting part 1 on the pipe 100, thereby completing the fixation of the fitting part 1, and the structure is simple and the fixation is convenient.

[0035] Among them, the connection method between the binding belt 13 and the binding buckle 131 can be plug-in, snap-on or other connection methods, and can be detachably connected. It is the existing technology and will not be described in detail in this embodiment.

[0036] Reference Figure 2 and Figure 4 The fitting portion 1 is provided with a threaded hole 14, the plugging rod 11 includes a threaded portion 15, the threaded portion 15 is provided with a circumferential thread, the threaded portion 15 is threadedly connected to the fitting portion 1, and the plugging rod 11 is provided with a hexagonal protrusion 4 on the side away from the fitting sheet 25 (refer to Figure 3 ), use a hexagonal wrench to fit the hexagonal protrusion 4 (refer to Figure 3 ) and then turn the hexagonal wrench to drive the hexagonal protrusion 4 (refer to Figure 3 ) and the plugging rod 11 rotate, the structure is simple and the stability is high. When rotating, the plugging rod 11 rotates.

[0037] The plugging rod 11 includes a cleaning portion 16, which is located below the threaded portion 15. A plurality of cleaning brushes 17 for cleaning the hole wall of the pipeline 100 are arranged circumferentially of the cleaning portion 16. As the plugging rod 11 rotates, the cleaning brushes 17 rotate along with the plugging rod 11. The cleaning brushes 17 clean the hole wall of the leakage hole 200 of the pipeline 100 and the surrounding area of ​​the leakage hole 200, which can reduce the occurrence of subsequent plugging problems due to excessive impurities. When cleaning the wall of the leakage hole 200, the bonding sheet 25 is still in a folded state, thereby reducing the occurrence of impurities falling onto the bonding sheet 25.

[0038] The cleaning brush 17 may be made of metal or alloy, and has a certain degree of softness and a certain degree of rigidity, so as to clean the impurities on the metal pipe 100 .

[0039] After the wall of the leakage hole 200 is cleaned, the picking-up part 5 can be operated to recover, the picking-up part 5 is rotated out of the draft limiting hole 311, and then the picking-up part 5 is moved toward the direction close to the bonding sheet 25, and the bonding sheet 25 is unfolded.

[0040] A clearance groove 6 for placing the cleaning part 16 is opened at the lower end of the fitting part 1. As the plugging rod 11 continues to rotate, the cleaning part 16 enters into the clearance groove 6. As the plugging rod 11 continues to rotate, the fitting sheet 25 abuts against the surrounding wall of the pipe 100, and then the cleaning part 16 enters into the clearance groove 6.

[0041] The horizontal hole 31 located at the bottom is set as the second limiting hole 312, and then the picking up part 5 can be manipulated to rotate, and the picking up part 5 can be rotated to the inside of the second limiting hole 312 to complete the limiting of the picking up part 5, and then complete the limiting of the bonding sheet 25.

[0042] The picking-up portion 5 may be a picking-up rod or other workpieces, and the user may just pick them up.

[0043] The implementation principle of a downhole pipeline rapid plugging device according to an embodiment of the present application is as follows: before plugging the leak, the user first operates the picking-up portion 5 to slide along the vertical hole 32, and slides the picking-up portion 5 into the limiting hole 1 311. At this time, the bonding sheet 25 is folded in half, and then the folded bonding sheet 25 is placed inside the leakage hole 200. The folded bonding sheet 25 occupies a smaller space and can be sealed in leakage holes 200 of different sizes, with higher applicability. Then, the bonding portion 1 is bonded to the pipeline 100, and then the outside of the leakage hole 200 of the pipeline 100 is sealed; then the plugging rod 11 can be operated to rotate, and during the rotation, the cleaning brush 17 can clean the hole wall, thereby improving the subsequent plugging effect, and then the picking-up portion 5 can be operated to slide into the limiting hole 2 312, and the bonding sheet 25 is restored. After the bonding sheet 25 is bonded to the pipeline 100, the sealing of the leakage hole 200 is completed.

[0044] 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 downhole pipeline rapid leak plugging device, comprising a fitting portion (1) for fitting to a pipeline (100), characterized in that: The fitting portion (1) is arranged in an arc shape, the fitting portion (1) corresponds to the arc of the pipe (100), a leak-blocking rod (11) is slidably connected to the fitting portion (1), a sliding tube (12) is arranged on the fitting portion (1), the leak-blocking rod (11) is located inside the sliding tube (12), and a fitting sheet (25) for fitting with the inner wall of the pipe (100) is arranged at one end of the leak-blocking rod (11) close to the pipe (100).

2. A downhole pipeline rapid leak plugging device according to claim 1, characterized in that: One end of the fitting portion (1) is provided with a binding belt (13), and the other end of the fitting portion (1) is provided with a binding buckle (131) adapted to the binding belt (13).

3. A downhole pipeline rapid leak plugging device according to claim 1, characterized in that: The fitting part (1) is provided with a threaded hole (14), and the leak-proof rod (11) comprises a threaded part (15), the threaded part (15) is provided with a circumferential thread, and the threaded part (15) is threadedly connected to the fitting part (1).

4. A downhole pipeline rapid leak plugging device according to claim 1, characterized in that: The fitting sheet (25) is also arranged in an arc shape, and the fitting sheet (25) is adapted to the curvature of the pipeline (100).

5. A downhole pipeline rapid leak plugging device according to claim 3, characterized in that: The leak-proof rod (11) comprises a cleaning portion (16), the cleaning portion (16) is located below the threaded portion (15), and a plurality of cleaning brushes (17) for cleaning the hole wall of the pipeline (100) are arranged around the cleaning portion (16).

6. A downhole pipeline rapid leak plugging device according to claim 1, characterized in that: The plugging rod (11) is slidably connected to a driving rod (2) along the length direction; a sliding block (21) is provided at one end of the driving rod (2) close to the fitting sheet (25); two swing leaves (24) are rotatably connected at both ends of the sliding block (21); the fitting sheet (25) comprises a left sheet (251) and a right sheet (252); the left sheet (251) is fixedly connected to one of the swing leaves (24); the right sheet (252) is fixedly connected to the other swing leaf (24); one end of the plugging rod (11) close to the fitting sheet (25) is rotatably connected to two swing rods; the swing rods comprise a first rod (22) and a second rod (23); the first rod (22) is rotatably connected to one side of the plugging rod (11); the second rod (23) is rotatably connected to the other side of the plugging rod (11); the other end of the first rod (22) is rotatably connected to the left sheet (251); the other end of the second rod (23) is rotatably connected to the right sheet (252).

7. A downhole pipeline rapid leak plugging device according to claim 1, characterized in that: The plugging rod (11) is provided with a sliding hole (3), and a picking portion (5) is vertically arranged on the driving rod (2). The picking portion (5) passes through the sliding hole (3) and extends to the outside of the plugging rod (11). The sliding hole (3) comprises a vertical hole (32) and two horizontal holes (31) formed on the plugging rod (11). The two horizontal holes (31) are both connected to the vertical hole (32), and the two horizontal holes (31) are vertically arranged to the vertical hole (32).

8. The downhole pipeline rapid leak plugging device according to claim 1, characterized in that: A hexagonal protrusion (4) is provided on the side of the leak-proof rod (11) away from the bonding sheet (25).

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