Pipeline plugging device

Abstract

The utility model provides a pipeline plugging device, including first flat portion and a plurality of air bags, a plurality of air bags all with first flat portion coaxial setting and are connected in the outer periphery of first flat portion, seal connection between two adjacent air bags, the outer diameter of all air bags is not same and the outer diameter of all air bags is sequentially increasing along the radial direction of first flat portion, every air bag has independent chamber and inflator nozzle, and the inflator nozzle is communicated with the chamber, the utility model can be compatible with a plurality of different pipe diameter's pipeline and carry out plugging operation, has simple structure, convenient operation and the advantages such as.

Description

Technical Field

[0001] This utility model relates to the field of auxiliary equipment for pipeline construction, specifically to a pipeline sealing device. Background Technology

[0002] To prevent impurities such as sand and gravel from entering the pipeline during backfilling and to avoid internal contamination, the ends of the pipeline need to be sealed and filled. Currently, commonly used sealing materials are rags or airbags. Among them, rag sealing is relatively inconvenient to operate and the sealing effect is often unsatisfactory; while airbag sealing has better sealing performance, it is usually only suitable for pipelines with a specific inner diameter, making it difficult to flexibly cope with pipelines of various different diameters, and its compatibility and practicality in actual applications are relatively limited. Utility Model Content

[0003] The purpose of this invention is to provide a pipe sealing device that is compatible with various pipe diameters.

[0004] To achieve the above objectives, this utility model provides a pipe sealing device, comprising a first flat plate and multiple airbags. The multiple airbags are coaxially arranged with the first flat plate and connected to the outer periphery of the first flat plate. Adjacent airbags are sealed together. The outer diameters of all airbags are different, and the outer diameters of all airbags increase sequentially outward along the radial direction of the first flat plate. Each airbag has an independent chamber and an inflation nozzle, and the inflation nozzle communicates with the chamber.

[0005] As can be seen from the above scheme, by setting multiple airbags with different outer diameters, each airbag can be adapted to pipes with different inner diameters for sealing, which has the advantages of simple structure and convenient operation.

[0006] A further option is to design the cross-section of the airbag as circular or polygonal, and to make the airbag from plastic or rubber materials.

[0007] A further option is to have multiple airbags including a first airbag, a second airbag, and a third airbag, with the first airbag being sealed between the first flat section and the second airbag, and the second airbag being sealed between the first airbag and the third airbag.

[0008] A further embodiment is that the first airbag has a first preset outer diameter, the second airbag has a second preset outer diameter, and the third airbag has a third preset outer diameter, wherein the second preset outer diameter is larger than the first preset outer diameter, and the third preset outer diameter is larger than the second preset outer diameter.

[0009] A further option is to connect the first airbag and the second airbag with a second flat plate, which is made of plastic, rubber or silicone material.

[0010] A further option is that the second flat plate is fixedly connected to the first airbag and / or the second airbag, or the second flat plate is detachably connected to the first airbag and / or the second airbag.

[0011] A further option is to connect the second and third airbags with a third flat plate, which is made of plastic, rubber or silicone material.

[0012] A further option is that the third plate portion is fixedly connected to the second airbag and / or the third airbag, or the third plate portion is detachably connected to the second airbag and / or the third airbag.

[0013] A further option is to make the first flat plate part using plastic, rubber, silicone or metal materials.

[0014] A further option is to provide a handle on the first flat section. Attached Figure Description

[0015] Figure 1 This is a structural diagram of the first embodiment of the pipeline sealing device of this utility model.

[0016] Figure 2 This is a top view of the first embodiment of the pipe sealing device of this utility model.

[0017] Figure 3 yes Figure 2 Sectional view at point AA.

[0018] Figure 4 This is a structural diagram of the second embodiment of the pipeline sealing device of this utility model.

[0019] Figure 5 This is a top view of the second embodiment of the pipe sealing device of this utility model.

[0020] Figure 6 yes Figure 5 Sectional view at point BB.

[0021] The present invention will be further described below with reference to the accompanying drawings and embodiments. Detailed Implementation

[0022] First embodiment of the pipeline plugging device: See Figures 1 to 3 The pipe sealing device provided in this embodiment includes a first flat plate 1 and multiple airbags.

[0023] The first flat plate 1 is circular and is made of plastic, rubber, silicone, or metal. A handle (not shown in the figure) is provided on one side of the first flat plate 1.

[0024] Multiple airbags are coaxially arranged with and connected to the outer periphery of the first plate portion 1. The center of the first plate portion 1 and the center of each airbag are in the same plane. Adjacent airbags are sealed together. All airbags have different outer diameters, and their outer diameters increase radially outward from the first plate portion 1. Each airbag has an independent chamber and an inflation nozzle (not shown in the figure). The inflation nozzle communicates with the chamber and is used to inflate or deflate that chamber.

[0025] In this embodiment, the multiple airbags include a first airbag 2, a second airbag 3 and a third airbag 4. The first airbag 2 is sealed between the first flat plate portion 1 and the second airbag 3, and the second airbag 3 is sealed between the first airbag 2 and the third airbag 4.

[0026] The first airbag 2 has a first preset outer diameter, the second airbag 3 has a second preset outer diameter, and the third airbag 4 has a third preset outer diameter, wherein the second preset outer diameter is larger than the first preset outer diameter, and the third preset outer diameter is larger than the second preset outer diameter. Preferably, the first preset outer diameter is 200mm, the second preset outer diameter is 300mm, and the third preset outer diameter is 400mm.

[0027] For a pipe with a diameter of 200mm, the pipe sealing device can be placed inside the pipe, and only the first airbag 2 is inflated. The outer peripheral wall of the first airbag 2 fits tightly against the inner wall of the pipe, thus achieving a sealing effect. At this time, the second airbag 3 and the third airbag 4 are not inflated.

[0028] For a pipe with a diameter of 300mm, the pipe sealing device can be placed inside the pipe, and the second airbag 3 can be inflated. The outer peripheral wall of the second airbag 3 fits tightly against the inner wall of the pipe, thus achieving a sealing effect. At this time, the third airbag 4 is not inflated, while the first airbag 2 may or may not be inflated.

[0029] For a pipe with a diameter of 400mm, the pipe sealing device can be placed inside the pipe, and the third airbag 4 can be inflated. The outer peripheral wall of the third airbag 4 fits tightly against the inner wall of the pipe, thus achieving a sealing effect. At this time, the first airbag 2 and the second airbag 3 can be inflated, or neither can be inflated.

[0030] Each airbag may have the same or different cross-sectional shape; in this embodiment, the shape is preferably the same. The cross-section of the airbag is circular or polygonal, and the airbag is made of plastic or rubber material.

[0031] Second embodiment of the pipeline sealing device: See Figures 4 to 6 Based on the first embodiment of the pipe sealing device described above, the pipe sealing device provided in this embodiment is further provided with a second flat plate portion 5 and a third flat plate portion 6.

[0032] The second plate part 5 is connected between the first airbag 2 and the second airbag 3. The second plate part 5 is made of plastic, rubber or silicone material.

[0033] In this embodiment, the second flat plate 5 is fixedly connected to the first airbag 2 and the second airbag 3 respectively.

[0034] In other embodiments, the second flat plate portion 5 is detachably connected to the first airbag 2 and the second airbag 3, respectively. The detachable connection can be a zipper connection, a magnetic connection, a button connection, etc. A shielding structure can be provided at the detachable connection point.

[0035] For a pipe with a diameter of 200mm, the first airbag 2 and the second airbag 3 can be separated first, and then the first airbag 2 can be placed into the pipe. The outer peripheral wall of the first airbag 2 fits tightly with the inner wall of the pipe, thus achieving a sealing effect.

[0036] The third plate part 6 is connected between the second airbag 3 and the third airbag 4. The second plate part 5 is made of plastic, rubber or silicone material.

[0037] In this embodiment, the third flat plate 6 is fixedly connected to the second airbag 3 and the third airbag 4 respectively.

[0038] In other embodiments, the third flat plate portion 6 is detachably connected to both the second airbag 3 and the third airbag 4. The detachable connection can be a zipper connection, a magnetic connection, a button connection, etc. A shielding structure can be provided at the detachable connection point.

[0039] For a pipe with a diameter of 300mm, the second airbag 3 and the third airbag 4 can be separated first, while keeping the first airbag 2 and the second airbag 3 connected. Then, the first airbag 2 and the second airbag 3 are placed into the pipe. The outer peripheral wall of the second airbag 3 fits tightly against the inner wall of the pipe, thus achieving a sealing effect.

[0040] In summary, this utility model, by setting multiple airbags with different outer diameters, allows each airbag to be adapted to pipes with different inner diameters for sealing, and has the advantages of simple structure and convenient operation.

[0041] Finally, it should be emphasized that the above are only preferred embodiments of the present utility model and are not intended to limit the present utility model. For those skilled in the art, the present utility model can have various changes and modifications. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A pipe plugging device, characterized in that, include: First flat section; Multiple airbags are provided, each of which is coaxially arranged with the first plate portion and connected to the outer periphery of the first plate portion. Adjacent airbags are sealed together. The outer diameters of all airbags are different and increase sequentially outward along the radial direction of the first plate portion. Each airbag has an independent chamber and an inflation nozzle, and the inflation nozzle communicates with the chamber.

2. The pipeline plugging device according to claim 1, characterized in that: The airbag has a circular or polygonal cross-section and is made of plastic or rubber material.

3. The pipeline plugging device according to claim 1, characterized in that: The multiple airbags include a first airbag, a second airbag, and a third airbag, wherein the first airbag is sealed between the first flat plate portion and the second airbag, and the second airbag is sealed between the first airbag and the third airbag.

4. The pipeline plugging device according to claim 3, characterized in that: The first airbag has a first preset outer diameter, the second airbag has a second preset outer diameter, and the third airbag has a third preset outer diameter. The second preset outer diameter is larger than the first preset outer diameter, and the third preset outer diameter is larger than the second preset outer diameter.

5. The pipe plugging device according to claim 3, characterized in that: A second flat plate is connected between the first airbag and the second airbag. The second flat plate is made of plastic, rubber or silicone material.

6. The pipeline plugging device according to claim 5, characterized in that: The second flat plate is fixedly connected to the first airbag and / or the second airbag, or the second flat plate is detachably connected to the first airbag and / or the second airbag.

7. The pipeline plugging device according to claim 3, characterized in that: A third flat plate is connected between the second airbag and the third airbag. The third flat plate is made of plastic, rubber or silicone material.

8. The pipeline plugging device according to claim 7, characterized in that: The third plate portion is fixedly connected to the second airbag and / or the third airbag, or the third plate portion is detachably connected to the second airbag and / or the third airbag.

9. The pipe plugging device according to any one of claims 1 to 8, characterized in that: The first flat plate is made of plastic, rubber, silicone or metal.

10. The pipe plugging device according to claim 9, characterized in that: The first flat plate is provided with a handle.

Images