Three-section type pipeline plugging device

Abstract

The utility model relates to a three-section type pipeline plugging device which comprises an inflation part, a first section pipe, a second section pipe and a third section pipe, the outer diameters of the first section pipe, the second section pipe and the third section pipe are sequentially reduced, the first section pipe, the second section pipe and the third section pipe are coaxially connected together, a first inflation plugging part is arranged on the outer side of the first section pipe, and a second inflation plugging part is arranged on the outer side of the second section pipe. A third inflation plugging part is arranged on the outer side of the third section pipe, the outer diameter of the first inflation plugging part, the outer diameter of the second inflation plugging part and the outer diameter of the third inflation plugging part are sequentially decreased, and the first inflation plugging part, the second inflation plugging part and the third inflation plugging part are communicated through ventilation parts and inflation parts. When the air inflation part is inflated, the first air inflation plugging part, the second air inflation plugging part and the third air inflation plugging part can expand towards the inner wall of the pipeline. By means of the pipeline plugging device, pipelines of different sizes can be effectively plugged, foreign matter, sewage and the like are prevented from entering the pipelines from pipeline openings, and the pipelines are effectively protected.

Description

Technical Field

[0001] The utility model relates to the technical field of pipeline protection, in particular to a three-section pipeline plugging device. Background Technique

[0002] During the pipeline installation construction process, pipeline embedding is one of the very important links. Usually, two methods are used for laying, namely overhead laying and buried laying, and buried laying is further divided into direct buried laying and trench laying. Generally, during the construction of underground electrical pipeline embedding and water supply and drainage pipeline embedding, various sewage and foreign matters can easily enter the pipeline through the pipeline opening. Therefore, it is necessary to use a plugging device to plug the pipeline opening to prevent foreign matters, sewage, etc. from entering the pipeline through the pipeline opening.

[0003] The utility model with the publication number of CN216344653U discloses a pipeline plugging device, which includes a bottom plate, a connecting rod is arranged in the middle thereof, and the connecting rod is vertically intersected with the bottom plate; a rubber plug is sleeved on the connecting rod; a cover plate, a through hole is arranged in the middle thereof, the cover plate is sleeved on the connecting rod, and the rubber plug is located between the bottom plate and the cover plate; a fastener is threadedly connected to the end of the connecting rod.

[0004] However, the rubber plug in the above-mentioned prior art has limited expansion and deformation, and it is difficult to plug pipeline openings of different sizes, and foreign matters, sewage, etc. will still enter the pipeline through the pipeline opening. Content of the Utility Model

[0005] Aiming at the deficiencies of the prior art, the utility model provides a three-section pipeline plugging device, and the specific technical solution is as follows:

[0006] The three-section pipeline plugging device includes an inflation part, a first pipe, a second pipe and a third pipe with gradually decreasing outer diameters. The first pipe, the second pipe and the third pipe are coaxially connected together. A first inflation plugging part is arranged on the outer side of the first pipe, a second inflation plugging part is arranged on the outer side of the second pipe, and a third inflation plugging part is arranged on the outer side of the third pipe. The outer diameters of the first inflation plugging part, the second inflation plugging part and the third inflation plugging part gradually decrease. The first inflation plugging part, the second inflation plugging part and the third inflation plugging part are connected to the inflation part through a ventilation part. When the inflation part is inflated, the first inflation plugging part, the second inflation plugging part and the third inflation plugging part will expand towards the inner wall of the pipeline.

[0007] As an improvement of the above technical solution: the first inflation plugging part includes two groups of first plugging air bags made of rubber, the second inflation plugging part includes two groups of second plugging air bags made of rubber, the third inflation plugging part includes two groups of third plugging air bags made of rubber, and the first plugging air bags, the second plugging air bags and the third plugging air bags are all annularly arranged.

[0008] As an improvement to the above technical solution: A first spiral ventilation pipe is connected between the two groups of the first plugging air bags, a second spiral ventilation pipe is connected between the two groups of the second plugging air bags, and a third spiral ventilation pipe is connected between the two groups of the third plugging air bags. The first spiral ventilation pipe spirally winds around the outer side of the first pipe section, the second spiral ventilation pipe spirally winds around the outer side of the second pipe section, and the third spiral ventilation pipe spirally winds around the outer side of the third pipe section. Spiral grooves corresponding to the first spiral ventilation pipe, the second spiral ventilation pipe, and the third spiral ventilation pipe are provided on the inner wall of the pipeline.

[0009] As an improvement to the above technical solution: The ventilation part includes an air inlet pipe and two groups of ventilation components. One of the ventilation components is connected between the adjacent first plugging air bag and the second plugging air bag, and the other ventilation component is connected between the adjacent second plugging air bag and the third plugging air bag. The inflation part includes a compressor. One end of the air inlet pipe is connected to the air output end of the compressor, and the other end of the air inlet pipe is connected to the first plugging air bag near the first installation flange.

[0010] As an improvement to the above technical solution: The ventilation component includes a first ventilation pipe, an insertion pipe, and a second ventilation pipe. The insertion pipe is connected to one end of the second ventilation pipe and is adapted to the inner side of the sealing ring. One end of the inner wall of the first ventilation pipe has a sealing ring.

[0011] As an improvement to the above technical solution: One end of the first pipe section away from the second pipe section has a first installation flange, and the other end of the first pipe section has a second flange. One end of the second pipe section close to the first pipe section has a second installation flange, and the other end of the second pipe section has a third installation flange. One end of the third pipe section close to the second pipe section has a fourth installation flange, and the other end of the third pipe section has a fifth installation flange. A first fixing bolt is fixedly connected between the second flange and the second installation flange, and a plurality of second fixing bolts are fixedly connected between the third installation flange and the fourth installation flange. A plurality of installation holes are provided on both the first installation flange and the fifth installation flange.

[0012] The beneficial effects of the present utility model:

[0013] When the pipeline is to be blocked, firstly, the first blocking airbag on the first section of the pipe, the second blocking airbag on the second section of the pipe, and the third blocking airbag on the third section of the pipe are inflated through the inflation part through the ventilation part, so that the first blocking airbag, the second blocking airbag and the third blocking airbag expand outward, and one end of the third section of the pipe is gradually inserted axially into one end of the inner wall of the pipeline to be blocked, until the first blocking airbag, the second blocking airbag or the third blocking airbag corresponding to the inner wall of the pipeline is tightly in contact with the inner wall of the pipeline, so that the corresponding first blocking airbag, the second blocking airbag and the third blocking airbag can effectively block the inner wall of the pipeline, so that the present application can effectively block pipelines of different sizes, prevent foreign matter, sewage, etc. from entering the interior of the pipeline from the pipeline mouth, and effectively protect the pipeline. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0015] Figure 2 It is a structural schematic diagram of the ventilation member in the utility model.

[0016] Figure markings: 1. first section of the pipe; 11. first mounting flange; 111. mounting hole; 12. first blocking airbag; 13. second flange; 14. first spiral ventilation pipe; 2. second section of the pipe; 21. second mounting flange; 22. second blocking airbag; 23. third mounting flange; 24. second spiral ventilation pipe; 3. third section of the pipe; 31. fourth mounting flange; 32. third blocking airbag; 33. fifth mounting flange; 34. third spiral ventilation pipe; 4. air inlet pipe; 5. first fixing bolt; 6. ventilation piece; 60. first ventilation pipe; 61. sealing ring; 62. insert; 63. second ventilation pipe; 7. second fixing bolt. DETAILED DESCRIPTION

[0017] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0018] Example

[0019] Please refer to Figure 1 - Figure 2, A three - section pipeline plugging device, including an inflation part and the first pipe 1, the second pipe 2 and the third pipe 3 with gradually decreasing outer diameters. The first pipe 1, the second pipe 2 and the third pipe 3 are coaxially connected together. A first inflation plugging part is arranged on the outer side of the first pipe 1, a second inflation plugging part is arranged on the outer side of the second pipe 2, and a third inflation plugging part is arranged on the outer side of the third pipe 3. The outer diameters of the first inflation plugging part, the second inflation plugging part and the third inflation plugging part decrease in sequence. The first inflation plugging part, the second inflation plugging part and the third inflation plugging part are connected to the inflation part through a ventilation part. When the inflation part is inflated, the first inflation plugging part, the second inflation plugging part and the third inflation plugging part will expand towards the inner wall of the pipeline.

[0020] In an alternative embodiment: The first inflation plugging part includes two groups of first plugging airbags 12 made of rubber. The second inflation plugging part includes two groups of second plugging airbags 22 made of rubber. The third inflation plugging part includes two groups of third plugging airbags 32 made of rubber. The first plugging airbags 12, the second plugging airbags 22 and the third plugging airbags 32 are all annularly arranged, so that they can better adhere to the inner wall of the pipeline for plugging.

[0021] Furthermore, the first plugging airbags 12, the second plugging airbags 22 and the third plugging airbags 32 are all made of high - strength rubber materials, such as styrene - butadiene rubber (SBR), nitrile - butadiene rubber (NBR), etc., so that they have good elasticity and wear resistance, and can ensure that the cylinder can closely fit the inner wall of the pipeline after inflation.

[0022] In an alternative embodiment: A first spiral ventilation pipe 14 is connected between the two groups of first plugging airbags 12. A second spiral ventilation pipe 24 is connected between the two groups of second plugging airbags 22. A third spiral ventilation pipe 34 is connected between the two groups of third plugging airbags 32. The first spiral ventilation pipe 14 spirally winds on the outer side of the first pipe 1. The second spiral ventilation pipe 24 spirally winds on the outer side of the second pipe 2. The third spiral ventilation pipe 34 spirally winds on the outer side of the third pipe 3. Spiral grooves corresponding to the first spiral ventilation pipe 14, the second spiral ventilation pipe 24 and the third spiral ventilation pipe 34 are provided on the inner wall of the pipeline. Thus, when the first pipe 1, the second pipe 2 and the third pipe 3 are inserted into the inner wall of the pipeline, the expanded first spiral ventilation pipe 14, the second spiral ventilation pipe 24 and the third spiral ventilation pipe 34 are close to the grooves, making the entire plugging device of the present application more stably inserted into the pipeline.

[0023] In an alternative embodiment: The ventilation part includes an intake pipe 4 and two groups of ventilation components 6. One of the ventilation components 6 is communicated between the adjacent first plugging airbag 12 and the second plugging airbag 22, and the other ventilation component 6 is communicated between the adjacent second plugging airbag 22 and the third plugging airbag 32. The inflation part includes a compressor. One end of the intake pipe 4 is communicated with the air delivery end of the compressor, and the other end of the intake pipe 4 is communicated with the first plugging airbag 12 near the first mounting flange 11.

[0024] In an alternative embodiment: The ventilation component 6 includes a first ventilation pipe 60, an insertion pipe 62 and a second ventilation pipe 63. The insertion pipe 62 is connected to one end of the second ventilation pipe 63 and is adapted to the inner side of the sealing ring 61. One end of the inner wall of the first ventilation pipe 60 has a sealing ring 61;

[0025] Specifically, the insertion pipe 62 can be inserted into the inner side of the sealing ring 61, and when inserted, the outer side of the insertion pipe 62 can tightly abut against the sealing ring 61, maintaining the sealing between the second ventilation pipe 63 and the first ventilation pipe 60, and facilitating the disassembly and assembly between the first ventilation pipe 60 and the second ventilation pipe 63, and also facilitating the disassembly and assembly between the first pipe section 1, the second pipe section 2 and the third pipe section 3.

[0026] In an alternative embodiment: One end of the first pipe section 1 away from the second pipe section 2 has a first mounting flange 11, and the other end of the first pipe section 1 has a second flange 13. One end of the second pipe section 2 close to the first pipe section 1 has a second mounting flange 21, and the other end of the second pipe section 2 has a third mounting flange 23. One end of the third pipe section 3 close to the second pipe section 2 has a fourth mounting flange 31, and the other end of the third pipe section 3 has a fifth mounting flange 33. A first fixing bolt 5 is fixedly connected between the second flange 13 and the second mounting flange 21, and a number of second fixing bolts 7 are fixedly connected between the third mounting flange 23 and the fourth mounting flange 31. A number of mounting holes 111 are provided on both the first mounting flange 11 and the fifth mounting flange 33;

[0027] Specifically, the disassembly and assembly between the first pipe section 1, the second pipe section 2 and the third pipe section 3 are facilitated through the second flange 13, the second mounting flange 21, the third mounting flange 23, the fourth mounting flange 31 and the fifth mounting flange 33, which is convenient for maintenance and replacement. Through the mounting holes on the first mounting flange 11 and the fifth mounting flange 33, it is convenient to install a sectional plugging pipe with a larger or smaller diameter, and it is convenient to plug a pipe with a smaller or larger inner diameter.

[0028] Specifically, when plugging the pipeline, first, the inflation part inflates the first plugging airbag 12 on the first pipe section 1, the second plugging airbag 22 on the second pipe section 2, and the third plugging airbag 32 on the third pipe section 3 through the ventilation part, so that the first plugging airbag 12, the second plugging airbag 22, and the third plugging airbag 32 expand outwards. Then, gradually axially insert one end of the third pipe section 3 towards the inner wall end of the pipeline to be plugged until the first plugging airbag 12, the second plugging airbag 22, or the third plugging airbag 32 corresponding to the inner wall of the pipeline tightly abuts against the inner wall of the pipeline, enabling the corresponding first plugging airbag 12, second plugging airbag 22, and third plugging airbag 32 to effectively plug the inner wall of the pipeline. Thus, the present application can effectively plug pipelines of different sizes, prevent foreign objects, sewage, etc. from entering the pipeline interior from the pipeline opening, and effectively protect the pipeline.

[0029] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. 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. Three - section pipeline plugging device, characterized in that, It includes an inflatable part, a first section of pipe (1), a second section of pipe (2) and a third section of pipe (3) with gradually decreasing outer diameters. The first section of pipe (1), the second section of pipe (2) and the third section of pipe (3) are coaxially connected together. A first inflatable sealing part is arranged on the outer side of the first section of pipe (1), a second inflatable sealing part is arranged on the outer side of the second section of pipe (2), and a third inflatable sealing part is arranged on the outer side of the third section of pipe (3). The outer diameters of the first inflatable sealing part, the second inflatable sealing part and the third inflatable sealing part gradually decrease. The first inflatable sealing part, the second inflatable sealing part and the third inflatable sealing part are connected to the inflatable part through a ventilation part. When the inflatable part is inflated, the first inflatable sealing part, the second inflatable sealing part and the third inflatable sealing part will expand towards the inner wall of the pipe.

2. The three - section pipeline plugging device according to claim 1, wherein: The first inflatable sealing part includes two groups of first sealing airbags (12) made of rubber. The second inflatable sealing part includes two groups of second sealing airbags (22) made of rubber. The third inflatable sealing part includes two groups of third sealing airbags (32) made of rubber. The first sealing airbag (12), the second sealing airbag (22) and the third sealing airbag (32) are all annularly arranged.

3. The three - section pipeline plugging device according to claim 2, wherein: A first spiral ventilation pipe (14) is connected between the two groups of first sealing airbags (12). A second spiral ventilation pipe (24) is connected between the two groups of second sealing airbags (22). A third spiral ventilation pipe (34) is connected between the two groups of third sealing airbags (32). The first spiral ventilation pipe (14) spirally winds around the outer side of the first section of pipe (1). The second spiral ventilation pipe (24) spirally winds around the outer side of the second section of pipe (2). The third spiral ventilation pipe (34) spirally winds around the outer side of the third section of pipe (3). Spiral grooves corresponding to the first spiral ventilation pipe (14), the second spiral ventilation pipe (24) and the third spiral ventilation pipe (34) are provided on the inner wall of the pipe.

4. The three - section pipeline plugging device according to claim 3, characterized in that: The ventilation part includes an air inlet pipe (4) and two groups of ventilation parts (6). One of the ventilation parts (6) is connected between the adjacent first sealing airbag (12) and the second sealing airbag (22). The other ventilation part (6) is connected between the adjacent second sealing airbag (22) and the third sealing airbag (32). The inflatable part includes a compressor. One end of the air inlet pipe (4) is connected to the air output end of the compressor. The other end of the air inlet pipe (4) is connected to the first sealing airbag (12) on the side close to the first mounting flange (11).

5. The three - section pipeline plugging device according to claim 4, wherein: The ventilation part (6) includes a first ventilation pipe (60), an insertion pipe (62) and a second ventilation pipe (63). The insertion pipe (62) is connected to one end of the second ventilation pipe (63) and is adapted to the inner side of the sealing ring (61). One end of the inner wall of the first ventilation pipe (60) has a sealing ring (61).

6. The three - section pipeline plugging device according to claim 5, wherein: One end of the first section of pipe (1) away from the second section of pipe (2) has a first mounting flange (11), the other end of the first section of pipe (1) has a second flange (13), one end of the second section of pipe (2) close to the first section of pipe (1) has a second mounting flange (21), the other end of the second section of pipe (2) has a third mounting flange (23), one end of the third section of pipe (3) close to the second section of pipe (2) has a fourth mounting flange (31), the other end of the third section of pipe (3) has a fifth mounting flange (33), a first fixing bolt (5) is fixedly connected between the second flange (13) and the second mounting flange (21), a number of second fixing bolts (7) are fixedly connected between the third mounting flange (23) and the fourth mounting flange (31), and a number of mounting holes (111) are provided on both the first mounting flange (11) and the fifth mounting flange (33).

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