Pressure leaking stoppage device for pipeline

Abstract

The utility model discloses an under-pressure leaking stoppage device for a pipeline, the bottom of a rotating screw rod is rotatably connected to the top of a leaking stoppage arc block in a limiting manner, a built-in cavity is formed in the leaking stoppage arc block, rubber pipes are connected to the two sides of the interior of the built-in cavity, the end parts of the rubber pipes are connected with a distribution box, and the distribution box is connected with the bottom of the rotating screw rod. By means of the sleeve, the threaded block, the glue pressing plug and the connecting rod, glue added by the adding pipe can be conveniently and rapidly pressed into the glue pipe from the sleeve, and the glue can be rapidly and evenly distributed to the leakage position of the steel pipe through the glue injection hole in cooperation with the distribution box at the end of the glue pressing plug. And in cooperation with the blocking effect of the sealing check block, glue liquid is concentrated on the surface of the steel pipe, the blocking requirement for point-shaped, linear and honeycomb-shaped leakage positions of the surface of the steel pipe is met, the steel pipe is more convenient during leaking stoppage and glue injection, and the steel pipe is blocked more rapidly and accurately.

Description

Technical Field

[0001] The utility model relates to the technical field of pipeline maintenance, in particular to a pressure - resistant leak - plugging device for pipelines. Background Technique

[0002] With the increasing number of domestic steel transmission pipelines, pipeline leakage caused by construction and corrosion occurs from time to time. Completing emergency repair tasks in the shortest time is an important responsibility of pipeline management work. At present, the pressure - resistant rapid plugging technology refers to the plugging operation carried out without stopping the vehicle, reducing the operating pressure and temperature after the medium leakage in the pipeline is found. Common pressure - resistant leak - plugging technologies include injection - type pressure - resistant leak - plugging technology, fastening - type pressure - resistant leak - plugging technology, and pressure - resistant welding leak - plugging technology.

[0003] However, in the actual application process of the current pressure - resistant leak - plugging device, due to the lack of a convenient glue injection mechanism during the leak - plugging process, when injecting glue for plugging, the glue cannot be quickly, evenly and accurately injected into the plugging position, which not only affects the leak - plugging effect of the pipeline, but also makes the plugging operation very troublesome. Content of the Utility Model

[0004] The utility model provides a pressure - resistant leak - plugging device for pipelines, which can effectively solve the problem that in the actual application process of the current pressure - resistant leak - plugging device, due to the lack of a convenient glue injection mechanism during the leak - plugging process, when injecting glue for plugging, the glue cannot be quickly, evenly and accurately injected into the plugging position, which not only affects the leak - plugging effect of the pipeline, but also makes the plugging operation very troublesome.

[0005] To achieve the above - mentioned purpose, the utility model provides the following technical solution: A pressure - resistant leak - plugging device for pipelines includes a connecting seat. There are two groups of the connecting seats, and the bottoms of the two connecting seats are connected by a flexible steel belt. A tensioning screw is connected inside the connecting seat. The top of the tensioning screw is connected to the inside of the top connecting rod, and a tensioning bolt is connected to the outside of the top of the tensioning screw through a thread. Two sides of the bottom of the top connecting rod are symmetrically connected with supports, and a limiting arc block is fixedly connected to the end of the support.

[0006] The middle of the top of the top connecting rod is rotationally connected with a rotating screw through a thread. The bottom of the rotating screw is rotationally and limit - connected to the top of the leak - plugging arc block. An internal cavity is arranged inside the leak - plugging arc block. Two sides of the internal cavity are both connected with rubber hoses. The ends of the rubber hoses are connected with a distribution box. Injection holes are evenly arranged in the middle of the bottom of the leak - plugging arc block, and a sealing block is fixedly bonded to the edge of the bottom arc surface of the leak - plugging arc block.

[0007] Both side edges of the plugging arc block are connected with sleeves. The top edge end of the sleeve is connected with an adding pipe. The inner side of the sleeve is threadedly and fittingly connected with a threaded block. The bottom end of the threaded block is connected with a rubber pressing plug, and the top of the threaded block is connected with a connecting rod.

[0008] Preferably, the tensioning screw rod is slidably connected to the inside of the connecting seat and the top connecting rod, and a limiting cap is arranged at the bottom end of the tensioning screw rod.

[0009] Preferably, a fastening rubber pad is fixedly bonded to the inner arc surface of the limiting arc block, and an anti-slip sheet is fixedly bonded to the inner arc surface of the flexible steel belt.

[0010] Preferably, the liquid inlet end of the rubber tube is communicated with the liquid outlet end at the bottom of the sleeve, and the liquid outlet end of the adding pipe is communicated with the inside of the sleeve;

[0011] The connecting rod drives the threaded block and the rubber pressing plug to rotate and move in the sleeve, and the rubber pressing plug is in close fit with the inner wall of the sleeve.

[0012] Preferably, both the top ends of the rotating screw rod and the connecting rod are connected with rotating discs. A limiting disc is arranged at the bottom of the rotating screw rod. A limiting sleeve is arranged at the top of the plugging arc block, and the limiting disc is rotatably and limitedly connected in the limiting sleeve.

[0013] Preferably, the bottom of the connecting seat is supported by a support frame. A limiting groove is opened in the middle of the top of the support frame. The connecting seat is fittingly connected in the limiting groove, and the connecting seat and the support frame are detachably connected by fixing bolts.

[0014] Compared with the prior art, the beneficial effects of the present utility model are as follows: The structure of the present utility model is scientific and reasonable, and it is safe and convenient to use:

[0015] 1. By threadedly connecting a rotating screw rod to the top of the top connecting rod, it is convenient to drive the plugging arc block to move up and down, so that the plugging arc block and the sealing block at its bottom can be closely attached to the position on the surface of the steel pipe that needs to be plugged. At the same time, by using the sleeve, the threaded block, the rubber pressing plug and the connecting rod, it is convenient to quickly press the glue liquid added through the adding pipe into the rubber tube from the sleeve. Cooperating with the distribution box at its end, the glue liquid can be quickly and evenly distributed to the leakage position of the steel pipe through the glue injection holes. With the blocking effect of the sealing block, the glue liquid is concentrated on the surface of the steel pipe, meeting the plugging requirements for the point-like, linear and honeycomb-like leakage positions on the surface of the steel pipe, making the plugging of the steel pipe more convenient during the plugging and glue injection process, achieving a more rapid and accurate plugging treatment for the steel pipe. This plugging process does not affect the normal conveying operation of the steel pipe, and at the same time, there is no need to consider the internal pressure of the pipeline, realizing plugging with pressure without shutting down the machine.

[0016] 2. By means of the connecting seat, flexible steel belt, tensioning screw, top connecting rod, tensioning bolt, support and limiting arc block, it is convenient to stably limit the position of the steel pipe. The flexible steel belt can be flexibly deformed. At the same time, there is a certain distance between the two supports and the limiting arc block. In this way, when limiting the steel pipe, it is convenient to limit steel pipes with different diameters. And when limiting, through the contact of the fastening rubber pad and the anti-slip sheet with the surface of the steel pipe, the stability of the steel pipe after being limited and clamped is further ensured. And through the distance between the two limiting arc blocks, when the steel pipe is limited, the plugging position at its top can be vacated, which is convenient for the subsequent glue injection equipment to more conveniently plug the steel pipe, making the operation more convenient.

[0017] 3. Through the support frame, limiting groove and fixing bolt, it is convenient to stably support both sides of the connecting seat, ensuring its stability when supporting the steel pipe, enabling the flexible steel belt to better deform and limit the position. And through multiple groups of support frames, when plugging, it is convenient to support both ends of the steel pipe, facilitating the steel pipe to be plugged more stably. At the same time, the fixing bolt facilitates the disassembly of the connecting seat, making it more convenient for storage. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The drawings are used to provide a further understanding of the present invention and form a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation to the present invention.

[0019] In the drawings:

[0020] Figure 1 is the structural schematic diagram of the present invention;

[0021] Figure 2 is the structural schematic diagram of the flexible steel belt of the present invention;

[0022] Figure 3 is the structural schematic diagram of the limiting arc block of the present invention;

[0023] Figure 4 is the structural schematic diagram of the plugging arc block of the present invention;

[0024] Reference numerals in the figures: 1, connecting seat; 2, flexible steel belt; 3, tensioning screw; 4, top connecting rod; 5, tensioning bolt; 6, support; 7, limiting arc block; 8, fastening rubber pad; 9, anti-slip sheet; 10, rotating screw; 11, plugging arc block; 12, built-in cavity; 13, rubber tube; 14, distribution box; 15, glue injection hole; 16, sealing block; 17, sleeve; 18, adding tube; 19, threaded block; 20, rubber pressing plug; 21, connecting rod; 22, support frame; 23, limiting groove; 24, fixing bolt. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0025] The preferred embodiments of the present utility model will be described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present utility model, and are not used to limit the present utility model.

[0026] Embodiment: As Figures 1-4 shown, the present utility model provides a technical solution, a pressure plugging device for pipelines, including a connecting seat 1. There are two groups of connecting seats 1, and the bottoms of the two connecting seats 1 are connected by a flexible steel belt 2. A tensioning screw 3 is connected inside the connecting seat 1. The top of the tensioning screw 3 is connected to the inside of the top connecting rod 4. The tensioning screw 3 is slidably connected to the inside of the connecting seat 1 and the top connecting rod 4. A limit cap is provided at the bottom end of the tensioning screw 3, which is convenient for limiting the end of the tensioning screw 3 and at the same time convenient for pulling the connecting seat 1 and the top connecting rod 4 closer and tightening them through the tensioning screw 3. A tensioning bolt 5 is threadedly connected to the outer side of the top of the tensioning screw 3. Two sides of the bottom of the top connecting rod 4 are symmetrically connected with supports 6, and a limit arc block 7 is fixedly connected to the end of the support 6. A fastening rubber pad 8 is fixedly adhered to the inner arc surface of the limit arc block 7. An anti-slip sheet 9 is fixedly adhered to the inner arc surface of the flexible steel belt 2. By the contact of the fastening rubber pad 8 and the anti-slip sheet 9 with the surface of the steel pipe, the stability of the steel pipe after being limited and clamped is ensured;

[0027] The middle of the top of the top connecting rod 4 is rotatably connected by a thread to a rotating screw 10. The bottom of the rotating screw 10 is rotationally connected in a limited manner to the top of the plugging arc block 11. An internal cavity 12 is provided inside the plugging arc block 11. Rubber hoses 13 are connected to both sides inside the internal cavity 12. The ends of the rubber hoses 13 are connected to a distribution box 14. Injection holes 15 are evenly opened in the middle of the bottom of the plugging arc block 11, and a sealing block 16 is fixedly adhered to the edge of the bottom arc surface of the plugging arc block 11;

[0028] On both side edges of the leak plugging arc block 11, sleeves 17 are connected. At the top edge end of the sleeve 17, an adding pipe 18 is connected. The liquid inlet end of the rubber hose 13 is communicated with the liquid outlet end at the bottom of the sleeve 17. The liquid outlet end of the adding pipe 18 is communicated with the inside of the sleeve 17. The rubber liquid added through the adding pipe 18 is quickly pressed into the rubber hose 13 from inside the sleeve 17. Inside the sleeve 17, a threaded block 19 is connected by threaded fit. At the bottom end of the threaded block 19, a rubber pressing plug 20 is connected. And at the top of the threaded block 19, a connecting rod 21 is connected. The connecting rod 21 drives the threaded block 19 and the rubber pressing plug 20 to rotate and move inside the sleeve 17. The rubber pressing plug 20 is closely attached to the inner wall of the sleeve 17, which is convenient to drive the rubber pressing plug 20 to move inside the sleeve 17 through the connecting rod 21, so that the rubber liquid inside the sleeve 17 can move from its top to the bottom. At the top ends of the rotating screw 10 and the connecting rod 21, rotating disks are both connected. At the bottom of the rotating screw 10, a limiting disk is arranged. At the top of the leak plugging arc block 11, a limiting sleeve is arranged. The limiting disk is rotationally connected in the limiting sleeve in a limited way, which is convenient for the rotation of the rotating screw 10 and the connecting rod 21, and at the same time, it is convenient to drive the leak plugging arc block 11 to perform lifting activities by rotating the rotating screw 10.

[0029] The bottom of the connecting seat 1 is supported by a support frame 22. In the middle of the top of the support frame 22, a limiting groove 23 is opened. The connecting seat 1 is fitted and connected in the limiting groove 23, and between the connecting seat 1 and the support frame 22, they are detachably connected by a fixing bolt 24, which is convenient to support both ends of the steel pipe and facilitates the steel pipe to perform leak plugging more stably.

[0030] The working principle and usage process of the present utility model: In the actual application process of this pipeline pressure - retaining leak plugging device, first, by using the support frames 22, limiting grooves 23 and fixing bolts 24 on both sides of the connecting seat 1, it is convenient to support it stably, ensuring the stability of the connecting seat 1 when supporting the steel pipe, enabling the flexible steel belt 2 to better perform deformation and limitation. And through the use of multiple groups of support frames 22, it is convenient to support both ends of the steel pipe during leak plugging, facilitating the steel pipe to perform leak plugging more stably. At the same time, the fixing bolt 24 is convenient to disassemble the connecting seat 1, making it more convenient for storage;

[0031] Next, the steel pipe is inserted into the space surrounded by the flexible steel belt 2, the tensioning screw 3, the limiting arc block 7 and the leak plugging arc block 11. Then, the position of the steel pipe is adjusted so that the position where the steel pipe needs to be leak - plugged is between the two limiting arc blocks 7, and the leak - plugging position corresponds to the position of the leak plugging arc block 11. Then, by using the cooperation of the tensioning bolt 5 and the tensioning screw 3, the connecting seat 1 and the top connecting rod 4 are gradually pulled closer and tightened, so that the plugging device can be stably sleeved outside the steel pipe. And when tightening and fixing, the fastening rubber pad 8 and the anti - slip piece 9 are used to replace the contact between the limiting arc block 7 and the flexible steel belt 2 and the surface of the steel pipe to further ensure the stability of the steel pipe after being limited and clamped;

[0032] Meanwhile, the flexible steel belt 2 can be flexibly deformed, and there is a certain distance between the two supports 6 and the limiting arc blocks 7. When limiting the steel pipe, it is convenient to limit steel pipes with different diameters. And through the distance between the two limiting arc blocks 7, when the steel pipe is limited, the plugging position at its top can be vacated, facilitating subsequent injection equipment to more conveniently plug the steel pipe and making the operation more convenient;

[0033] After the steel pipe is stably fixed, rotate the rotating screw 10 threadedly connected to the top of the top link 4. Drive the plugging arc block 11 to move up and down through the rotating screw 10, and the sleeve 17 will also move along with the plugging arc block 11, so that the plugging arc block 11 and the sealing block 16 at its bottom can closely fit the outer edge of the position on the steel pipe surface that needs to be plugged;

[0034] After the sealing block 16 closely fits the outer edge of the plugging position of the steel pipe, rotate the connecting rod 21 to move the threaded block 19 and the rubber pressing plug 20 to the top of the sleeve 17, making the positions of the threaded block 19 and the rubber pressing plug 20 higher than the height of the adding pipe 18. Add the repair glue into the sleeve 17 through the adding pipe 18;

[0035] Then rotate the connecting rod 21 to drive the threaded block 19 and the rubber pressing plug 20 to rotate and move to the inside of the sleeve 17, so as to quickly press the glue added by the adding pipe 18 into the rubber tube 13 from the sleeve 17. Cooperating with the distribution box 14 at the end of the rubber tube 13, the glue can be quickly and evenly distributed to the leakage position of the steel pipe through the injection holes 15. With the blocking effect of the sealing block 16, the glue is concentrated on the surface of the steel pipe, meeting the plugging requirements for the punctiform, linear, and honeycomb leakage positions on the surface of the steel pipe, making it more convenient to plug the steel pipe during plugging and injection, and achieving a more rapid and accurate plugging treatment of the steel pipe.

[0036] Finally, it should be noted that the above are only preferred examples of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A pressure plugging device for a pipeline, comprising a connecting seat (1), characterized in that: The connecting seat (1) is provided with two groups, and the bottoms of the two connecting seats (1) are connected by a flexible steel belt (2), the inside of the connecting seat (1) is connected with a tensioning screw (3), the top of the tensioning screw (3) is connected to the inner side of the top connecting rod (4), and the outer side of the top of the tensioning screw (3) is connected with a tensioning bolt (5) through a thread, the bottom of the top connecting rod (4) is symmetrically connected with a support (6), and the end of the support (6) is fixedly connected to a limiting arc block (7); The top middle end of the top connecting rod (4) is rotatably connected to a rotating screw rod (10) through a thread, the bottom of the rotating screw rod (10) is rotatably connected to the top of the plugging arc block (11), the plugging arc block (11) is provided with a built-in cavity (12), both sides of the built-in cavity (12) are connected to a rubber hose (13), the end of the rubber hose (13) is connected to a distribution box (14), the bottom middle end of the plugging arc block (11) is evenly provided with glue injection holes (15), and the bottom arc edge of the plugging arc block (11) is fixedly bonded with a sealing block (16); The two side edges of the plugging arc block (11) are connected to sleeves (17), the top edge of the sleeve (17) is connected to a adding pipe (18), the inner side of the sleeve (17) is connected to a threaded block (19) through a threaded fit, the bottom end of the threaded block (19) is connected to a rubber plug (20), and the top of the threaded block (19) is connected to a connecting rod (21).

2. A pressure plugging device for pipelines according to claim 1, characterized in that: The tensioning screw (3) is slidably connected to the inner side of the connecting seat (1) and the top connecting rod (4), and a limiting cap is provided at the bottom end of the tensioning screw (3).

3. A pressure plugging device for pipelines according to claim 1, characterized in that: A fastening rubber pad (8) is fixedly bonded to the inner arc surface of the limiting arc block (7), and an anti-slip sheet (9) is fixedly bonded to the inner arc surface of the flexible steel belt (2).

4. A pipeline leak-stopping device under pressure according to claim 1, characterized in that: The liquid inlet end of the rubber hose (13) is connected to the liquid outlet end at the bottom of the sleeve (17), and the liquid outlet end of the addition pipe (18) is connected to the inside of the sleeve (17); The connecting rod (21) drives the threaded block (19) and the rubber plug (20) to rotate and move in the sleeve (17), and the rubber plug (20) is tightly fitted with the inner wall of the sleeve (17).

5. The pipeline leak-stopping device under pressure according to claim 1 is characterized in that: The top ends of the rotating screw (10) and the connecting rod (21) are both connected to a rotating disk, the bottom of the rotating screw (10) is provided with a limiting disk, the top of the leak-proof arc block (11) is provided with a limiting sleeve, and the limiting disk is connected to the limiting sleeve for limited rotation.

6. A pressure plugging device for pipelines according to claim 1, characterized in that: The bottom of the connecting seat (1) is supported by a support frame (22), a limiting groove (23) is provided at the middle end of the top of the support frame (22), the connecting seat (1) is fitted and connected in the limiting groove (23), and the connecting seat (1) and the support frame (22) are detachably connected via a fixing bolt (24).

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