Pipeline non-excavation leakage stopping device

Abstract

The utility model relates to the field of pipeline repair, and discloses a pipeline non-excavation leakage stopping device which comprises a mounting shell, two first circular grooves are formed in the outer surface of the mounting shell, expansion air bags are fixedly mounted in the two first circular grooves, glass fiber blocking pieces are arranged on the outer surfaces of the expansion air bags, and the glass fiber blocking pieces are fixedly mounted in the two first circular grooves. A worker firstly moves a mounting shell to a pipeline leakage point and enables a glass fiber blocking piece to be located under the leakage point, at the moment, an external air supply pump operates, compressed air enters an air guide connecting pipe through an air inlet pipeline, and therefore the external compressed air conveniently enters an expansion air bag and enables the expansion air bag to expand and deform; by arranging the glass fiber blocking piece, the glass fiber blocking piece can be tightly attached to the inner wall of the pipeline conveniently, stress is uniform, leakage points can be blocked and repaired conveniently, by arranging the ultraviolet curing lamp, the curing efficiency of the glass fiber blocking piece is improved, and then the sealing performance and safety of the pipeline are improved.

Description

Technical Field

[0001] The present application belongs to the technical field of pipeline repair, and specifically relates to a pipeline trenchless leak-proof device. Background Art

[0002] The trenchless leak-stopping device for pipelines is a technology used to repair pipeline leaks. Normally, traditional pipeline repairs require excavation and then repair or replace the pipeline. However, the use of trenchless leak-stopping technology can repair pipeline leaks without excavation. These trenchless repair methods include the use of special pipeline packaging materials or resins, and repairs through some technologies inside or around the pipeline, such as spraying, grouting, fiberglass reinforcement, etc. This technology can usually reduce the impact on the environment, reduce maintenance costs, shorten maintenance time, and reduce damage to pipeline infrastructure. This technology is widely used in urban pipeline networks, gas pipelines, HVAC pipelines and other fields.

[0003] For example, the utility model patent with announcement number CN217402070U discloses a trenchless lining repair device for underground pipe networks, comprising a device body, an annular lamp holder is installed on the outer middle section of the device body, an ultraviolet curing lamp is installed on the inner side of the annular lamp holder, and the overall device structure is simple. It uses ultraviolet light to cure the resin to form an in-situ repair and curing technology with an inner lining pipe of a certain strength. No excavation is required, and the drainage pipe can be repaired as a whole by using an inspection well, thereby saving a lot of resources in the planning and construction stages of urban pipe network repair. At the same time, it is convenient to select the required thickness and length of repair materials to the required position for repair and use according to different on-site conditions by lifting / lowering adjustment and vacuum adsorption and dragging. It is also convenient to take full-position photography and observation of pipe damage and the condition of the pipe after repair before construction. It has high stability and practicality and has certain promotion value.

[0004] The device drives the vacuum adsorption bracket to move and adjust through the first electric lifting rod, so that the resin-impregnated glass fiber woven hose on the vacuum adsorption bracket can be supported and expanded up and down to fit tightly against the original pipeline, thereby plugging and repairing the pipeline. However, the thrust applied by the first electric lifting rod of the device to the vacuum adsorption bracket will be concentrated in one direction, that is, the thrust at the position where the arc-shaped vacuum adsorption bracket is connected to the first electric lifting rod is large, and the thrust will be smaller as it is closer to the arc side. This will cause the glass fiber woven hose to not fit well with the inner wall of the pipeline, affecting the plugging and repair of the pipeline. Therefore, a non-excavation leak-stopping device for pipelines is provided. Utility Model Content

[0005] The purpose of the present application is to provide a pipeline trenchless leakage prevention device in order to solve the above-mentioned problems.

[0006] The technical solution adopted in the present application is as follows: a non-excavation leak-proof device for pipelines, comprising a mounting shell, the outer surface of the mounting shell is provided with two circular grooves, and the insides of the two circular grooves are fixedly installed with inflatable air bags, the outer surface of the inflatable air bags is provided with glass fiber plugging pieces, circular mounting blocks are fixedly installed at the front and rear ends of the mounting shell, two pillars are fixedly installed on one side of the circular mounting block at the front end, and U-shaped connecting pipes are fixedly installed on the ends of the two pillars away from the circular mounting blocks, an air intake pipe is fixedly installed on the outer surface of the U-shaped connecting pipe, the air intake pipe is connected to an external air supply pump, two air guide connecting pipes are fixedly installed on the inner wall of the U-shaped connecting pipe, and the two air guide connecting pipes extend to the interior of the inflatable air bag respectively.

[0007] In a preferred embodiment, an outer sleeve is fixedly installed on the outer surface of the circular mounting block, an inner sliding sleeve of the outer sleeve is provided with an inner support column, a compression spring is fixedly installed on the inner bottom surface of the outer sleeve, one end of the compression spring away from the inner bottom surface of the outer sleeve is connected to the inner support column, a U-shaped plate is fixedly installed on one end of the inner support column away from the compression spring, and a roller is rotatably connected to the inside of the U-shaped plate.

[0008] In a preferred embodiment, a second circular groove is provided near the middle of the outer surface of the mounting shell, and a plurality of ultraviolet curing lamps are installed in a circular array inside the second circular groove.

[0009] In a preferred embodiment, a first limiting block is fixedly installed inside the outer sleeve, and a second limiting block corresponding to the first limiting block is fixedly installed on the outer surface of the inner support column.

[0010] In a preferred embodiment, solenoid valves are fixedly mounted on the outer surfaces of the two gas-conducting connecting pipes.

[0011] In a preferred embodiment, four outer sleeves are installed on the outer surface of the circular mounting block in a circumferential array at equal intervals, and the interiors of the four outer sleeves are all sleeved with inner support columns.

[0012] In summary, due to the adoption of the above technical solution, the beneficial effects of this application are:

[0013] 1. In the present application, due to the adoption of the above-mentioned scheme, the installation shell can be moved inside the pipeline by means of the provided rollers. The installation shell is moved to the leaking point of the pipeline and the glass fiber plugging piece is located directly below the leaking point. At this time, the personnel turns on the external air supply pump to allow the compressed gas to enter the inside of the air guide connecting pipe through the air intake pipe. There are two expansion air bags in total. When it is necessary to allow one of the expansion air bags to be inflated, it is only necessary to open the solenoid valve on the corresponding air guide connecting pipe to allow the external compressed gas to enter the inside of the expansion air bag and cause it to expand and deform, thereby facilitating the glass fiber plugging piece to fit closely to the inner wall of the pipeline and to bear force evenly, thus facilitating the plugging and repairing of the leaking point. The ultraviolet curing lamp provided facilitates the curing of the glass fiber plugging piece that fits the inner wall of the pipeline, thereby improving the curing efficiency of the glass fiber plugging piece. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the overall structure of this application;

[0015] Figure 2 This is a schematic diagram of the expansion airbag structure of the present application;

[0016] Figure 3 This is a schematic diagram of the internal structure of the outer sleeve of this application.

[0017] Markings in the figure: 1. Installation shell; 2. Circular groove 1; 3. Inflatable airbag; 4. Fiberglass plugging piece; 5. Circular mounting block; 6. Pillar; 7. U-shaped connecting pipe; 8. Inlet duct; 9. Air guide connecting pipe; 10. Outer sleeve; 11. Inner support column; 12. Compression spring; 13. U-shaped plate; 14. Roller; 15. Circular groove 2; 16. Ultraviolet curing lamp; 17. Limit block 1; 18. Limit block 2; 19. Solenoid valve. DETAILED DESCRIPTION

[0018] In order to make the purpose, technical scheme and advantages of the embodiments of the present application clearer, the technical scheme in the embodiments of the present application will be clearly and completely described below in combination with the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0019] refer to Figure 1 , Figure 2 and Figure 3A trenchless pipeline leak-proof device comprises an installation shell 1. Two circular grooves 2 are provided on the outer surface of the installation shell 1. Inflatable airbags 3 are fixedly installed inside the two circular grooves 2. A glass fiber plugging piece 4 is provided on the outer surface of the inflation airbag 3. The circular grooves 2 are provided to facilitate the installation of the inflation airbag 3. The glass fiber plugging piece 4 is provided to facilitate the subsequent plugging and repair of the pipeline leak.

[0020] refer to Figure 1 , circular mounting blocks 5 are fixedly installed at the front and rear ends of the mounting shell 1, two pillars 6 are fixedly installed on one side of the front circular mounting block 5, and U-shaped connecting pipes 7 are fixedly installed at one end of the two pillars 6 away from the circular mounting block 5; the two pillars 6 are provided to facilitate the installation and fixation of the U-shaped connecting pipe 7.

[0021] refer to Figure 1 An air intake pipe 8 is fixedly installed on the outer surface of the U-shaped connecting pipe 7, and the air intake pipe 8 is connected to the external air supply pump. Two air guide connecting pipes 9 are fixedly installed on the inner wall of the U-shaped connecting pipe 7, and the two air guide connecting pipes 9 extend to the interior of the expansion airbag 3 respectively. The outer surfaces of the two air guide connecting pipes 9 are fixedly installed with solenoid valves 19; the two air guide connecting pipes 9 extend to the interior of the two expansion airbags 3 respectively. The personnel moves the installation shell 1 to the required pipeline leakage point and makes the glass fiber plugging piece 4 directly below the leakage point. At this time, the personnel turns on the external air supply pump, so that the compressed gas enters the interior of the air guide connecting pipe 9 through the air intake pipe 8. There are two expansion airbags 3. When it is necessary to make one of the expansion airbags 3 intake air, it is only necessary to open the solenoid valve 19 on the corresponding air guide connecting pipe 9 to allow the external compressed gas to enter the interior of the expansion airbag 3, so that the expansion airbag 3 expands and deforms, thereby facilitating the glass fiber plugging piece 4 to fit closely with the inner wall of the pipeline, and conveniently plugging and repairing the leakage point.

[0022] refer to Figure 1 , Figure 2 and Figure 3An outer sleeve 10 is fixedly installed on the outer surface of the circular mounting block 5, and an inner support column 11 is slidably sleeved inside the outer sleeve 10. Four outer sleeves 10 are installed on the outer surface of the circular mounting block 5 in a circular array at equal intervals, and the inner support columns 11 are sleeved inside the four outer sleeves 10. A compression spring 12 is fixedly installed on the inner bottom surface of the outer sleeve 10, and the end of the compression spring 12 away from the inner bottom surface of the outer sleeve 10 is connected to the inner support column 11, and a U-shaped plate 13 is fixedly installed on the end of the inner support column 11 away from the compression spring 12, and a roller 14 is rotatably connected inside the U-shaped plate 13; the U-shaped plate 13 is provided to facilitate the roller 14 to be rotatably installed inside it, so that the device can be moved inside the pipeline conveniently, and the outer sleeve 10, the inner support column 11 and the compression spring 12 are provided to facilitate the roller 14 to adapt to pipelines with different inner diameters, thereby improving convenience.

[0023] refer to Figure 1 A circular groove 2 15 is provided near the middle of the outer surface of the mounting shell 1, and a plurality of ultraviolet curing lamps 16 are installed in a circular array inside the circular groove 2 15; the circular groove 2 15 is provided to facilitate installation and fixation of the ultraviolet curing lamp 16, and the ultraviolet curing lamp 16 is provided to facilitate curing of the glass fiber plugging piece 4 that is in contact with the inner wall of the pipeline, thereby improving the curing efficiency of the glass fiber plugging piece 4.

[0024] refer to Figure 1 , Figure 3 A limit block 17 is fixedly installed inside the outer sleeve 10, and a limit block 18 corresponding to the limit block 17 is fixedly installed on the outer surface of the inner support column 11; by setting the limit block 17 and the limit block 18, the inner support column 11 can be prevented from slipping out of the inner part of the outer sleeve 10 as much as possible.

[0025] The implementation principle of an embodiment of a non-excavation leak-proof device for pipelines in the present application is as follows: the user first installs the resin-impregnated fiberglass plugging piece 4 on the expansion airbag 3, and then puts the installation shell 1 into the pipeline that needs to be repaired. At this time, the installation shell 1 can be moved inside the pipeline through the roller 14. The installation shell 1 is moved to the leaking point of the pipeline and the fiberglass plugging piece 4 is located directly below the leaking point. At this time, the personnel turns on the external air supply pump to allow the compressed gas to enter the air guide connecting pipe 9 through the air intake pipe 8. There are two expansion airbags 3 in total. When it is necessary to allow one of the expansion airbags 3 to inhale air, it is only necessary to open the solenoid valve 19 on the corresponding air guide connecting pipe 9, so that the external compressed gas can enter the expansion airbag 3 and cause it to expand and deform, thereby facilitating the fiberglass plugging piece 4 to fit tightly against the inner wall of the pipeline and to be evenly stressed, which is convenient for plugging and repairing the leaking point. The ultraviolet curing lamp 16 is provided to facilitate the curing of the fiberglass plugging piece 4 that fits against the inner wall of the pipeline, thereby improving the curing efficiency of the fiberglass plugging piece 4 and having good overall practicality.

[0026] The above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. A pipeline trenchless leak-proof device, comprising a mounting housing (1), characterized in that: The outer surface of the installation shell (1) is provided with two circular grooves (2), and an expansion airbag (3) is fixedly installed inside the two circular grooves (2), and a glass fiber blocking piece (4) is provided on the outer surface of the expansion airbag (3). The front end and the rear end of the installation shell (1) are respectively fixedly installed with circular installation blocks (5), and two pillars (6) are fixedly installed on one side of the circular installation block (5) at the front end, and a U-shaped connecting pipe (7) is fixedly installed on the end of the two pillars (6) away from the circular installation block (5). An air intake pipe (8) is fixedly installed on the outer surface of the U-shaped connecting pipe (7), and the air intake pipe (8) is connected to an external air supply pump. Two air guide connecting pipes (9) are fixedly installed on the inner wall of the U-shaped connecting pipe (7), and the two air guide connecting pipes (9) extend to the inside of the expansion airbag (3) respectively.

2. A pipeline trenchless leak-proof device as claimed in claim 1, characterized in that: An outer sleeve (10) is fixedly mounted on the outer surface of the circular mounting block (5); an inner sliding sleeve of the outer sleeve (10) is provided with an inner support column (11); a compression spring (12) is fixedly mounted on the inner bottom surface of the outer sleeve (10); an end of the compression spring (12) away from the inner bottom surface of the outer sleeve (10) is connected to the inner support column (11); a U-shaped plate (13) is fixedly mounted on the end of the inner support column (11) away from the compression spring (12); a roller (14) is rotatably connected to the inside of the U-shaped plate (13).

3. A pipeline trenchless leak-proof device as claimed in claim 1, characterized in that: A second circular groove (15) is provided near the middle of the outer surface of the installation shell (1), and a plurality of ultraviolet curing lamps (16) are installed in a circular array inside the second circular groove (15).

4. A pipeline trenchless leak-proof device as claimed in claim 2, characterized in that: A first limiting block (17) is fixedly installed inside the outer sleeve (10), and a second limiting block (18) corresponding to the first limiting block (17) is fixedly installed on the outer surface of the inner support column (11).

5. A pipeline trenchless leak-proof device as claimed in claim 1, characterized in that: Solenoid valves (19) are fixedly mounted on the outer surfaces of the two gas guide connecting pipes (9).

6. A pipeline trenchless leak-proof device as claimed in claim 1, characterized in that: Four outer sleeves (10) are installed on the outer surface of the circular mounting block (5) at equal intervals in a circumferential array, and the interiors of the four outer sleeves (10) are all sleeved with inner support columns (11).

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