Inflatable capsule mechanism for in-situ plugging of underground pipeline and construction method of inflatable capsule mechanism

Abstract

The invention relates to the related technical field of underground pipeline construction, in particular to an inflation capsule mechanism for in-situ plugging of an underground pipeline and a construction method thereof.The inflation capsule mechanism for in-situ plugging of the underground pipeline comprises an air bag body, an inflation pipeline, a pressure release valve, a first positioning assembly and a second positioning assembly; the shape of the air bag body is matched with that of an inner cavity of an underground pipeline to be blocked, the inner side end of the inflation pipeline is communicated with the inner cavity of the air bag body, the pressure release valve is arranged at an outer side port of the inflation pipeline, the first positioning assembly is arranged at the front side end of the air bag body, and the second positioning assembly is arranged at the rear side end of the air bag body. By arranging the inflation capsule mechanism for in-situ plugging of the underground pipeline, which is composed of the air bag main body, the inflation pipeline, the pressure release valve, the first positioning assembly and the second positioning assembly, the underground pipeline to be plugged is plugged by inflating the air bag main body, so that the plugging effect on the underground pipeline is improved.

Description

Technical Field

[0001] The present invention relates to the technical field related to underground pipeline construction, and in particular to an inflatable capsule mechanism for in-situ plugging of underground pipelines and a construction method thereof. Background Art

[0002] In the technical field of underground pipeline construction, in-situ plugging technology has always been a hot topic and a difficult point of research. Since underground pipelines undertake important transportation tasks, how to achieve effective plugging without interrupting pipeline operation has been a problem that technicians have been committed to solving for a long time. Traditional plugging methods, such as water shut-off plugging and airbag plugging, although they can achieve plugging effects to a certain extent, have obvious limitations. Water shut-off plugging requires interrupting pipeline operation, which has a great impact on normal transportation tasks; and although airbag plugging can achieve water-saving operations, the plugging effect is often not ideal, and there are certain requirements for the material and shape of the pipeline.

[0003] The present invention relates to the field of underground pipeline construction technology, and in particular to the technology for in-situ sealing of underground pipelines. In the fields of municipal construction, water conservancy projects, oil and gas transportation, etc., underground pipelines undertake important transportation tasks. However, due to the long-term use of pipelines or the influence of external factors, the interior of the pipelines often needs to be maintained, repaired or rebuilt. Traditional pipeline sealing methods usually require interrupting pipeline operation, which not only affects normal transportation tasks, but may also have a greater impact on the surrounding environment. Therefore, it is particularly important to develop an in-situ sealing technology that is efficient, convenient, and causes little damage to the pipeline. The present invention came into being in this context. It uses an inflatable capsule mechanism to achieve in-situ sealing of underground pipelines, providing a new solution for pipeline construction.

[0004] With the acceleration of urbanization and the continuous improvement of infrastructure construction, the number and scale of underground pipelines are also increasing. However, the long-term operation of underground pipelines and the influence of the external environment often lead to various problems inside the pipelines, such as corrosion, leakage, blockage, etc. These problems not only affect the normal operation of the pipelines, but may also have a serious impact on the surrounding environment. Therefore, it is particularly important to carry out regular maintenance and repair of underground pipelines. However, due to its limitations, traditional plugging methods often cannot meet the needs of modern pipeline construction. It is urgent to develop an in-situ plugging technology that is efficient, convenient, and less damaging to the pipeline.

[0005] In recent years, with the continuous advancement of materials science and engineering technology, inflatable capsules have gradually attracted attention as a new type of plugging material. They offer advantages such as high strength, corrosion resistance, and strong adaptability, and have broad application prospects in the field of pipeline plugging. However, designing an inflatable capsule mechanism suitable for in-situ plugging of underground pipelines and developing a corresponding construction method remain challenging technical challenges. To address this issue, the present invention proposes an inflatable capsule mechanism for in-situ plugging of underground pipelines and a construction method thereof to address these challenges. Summary of the Invention

[0006] The object of the present invention is to provide an inflatable capsule mechanism for in-situ plugging of underground pipelines and a construction method thereof, so as to solve the problems raised in the above-mentioned background technology.

[0007] To achieve the above-mentioned purpose, the present invention provides the following technical solution: an inflatable capsule mechanism for in-situ plugging of underground pipelines comprises:

[0008] An airbag body, the shape of which matches the inner shape of the underground pipeline to be blocked;

[0009] an inflation pipe, wherein the inner end of the inflation pipe is connected to the inner cavity of the airbag body;

[0010] a pressure relief valve, the pressure relief valve being arranged at an outer port of the inflation pipe;

[0011] a first positioning assembly, the first positioning assembly being arranged at the front end of the airbag body;

[0012] The second positioning component is arranged at the rear end of the airbag body, and the second positioning component is symmetrically arranged with the first positioning component, and the first positioning component and the second positioning component are used to position the airbag body in the inner cavity of the underground pipeline to be blocked.

[0013] Preferably, an electronic barometer is provided on the inflation pipe, and a buzzer is provided on the front side of the airbag body. The electronic barometer and the buzzer are both electrically connected to the PLC control module on the sealing and inflating capsule mechanism.

[0014] Preferably, the first positioning assembly and the second positioning assembly are both composed of a mounting plate, a turntable and a positioning support. The center position of the mounting plate is fixedly glued to the center position of the end face of the airbag body, and a ball bearing is fixedly installed in the center hole of the mounting plate. The outer end face of the mounting plate is fixedly installed with a guide seat, and the circumference of the guide seat is provided with a circle. The inner side surface of the turntable is integrally formed with a rotating shaft, and the rotating shaft is fixedly connected to the inner ring of the ball bearing. A vortex groove is provided on the turntable, and a rotating handle is provided on the outer end face of the turntable.

[0015] Preferably, the positioning support member is composed of a guide rod, a support seat and a force-bearing rod. The support seat and the force-bearing rod are fixedly welded to the guide rod. The cross-sections of the guide rod and the guide holes on the guide seat are regular hexagons, and the guide rod is movably installed in the guide hole on the guide seat. The force-bearing rod is movably set in the vortex groove, and the support seats on all positioning support members are on the same circumference. The inner end face of the support seat is fixedly connected to the end face of the airbag body through a connecting rope.

[0016] Preferably, a threaded hole is provided on the turntable, and a positioning hole is provided on the mounting plate. The positioning hole is arranged corresponding to the threaded hole, and a circle of the positioning holes is arranged around the circumference. A positioning bolt is screwed into the threaded hole, and a positioning rod is integrally formed at the end of the screw. When the positioning bolt is actually tightened, the positioning rod is embedded in the positioning hole.

[0017] Preferably, the edge line of the end surface of the positioning rod is chamfered.

[0018] Preferably, when the positioning support member moves outward, the support seats are all arranged to abut against the inner wall of the underground pipeline to be blocked.

[0019] Preferably, an embedding groove is provided on the outer side of the support seat, a supporting rubber body is fixedly glued into the embedding groove, and an end surface of the supporting rubber body protrudes outside the embedding groove.

[0020] Preferably, the outer end surface of the supporting rubber body is provided with an anti-skid groove, the anti-skid groove is a hemispherical notch, and a plurality of groups of anti-skid grooves are evenly provided on the outer end surface of the supporting rubber body.

[0021] A construction method for an inflatable capsule mechanism for in-situ sealing of underground pipelines, the construction method for an inflatable capsule mechanism for in-situ sealing of underground pipelines is used to construct the above-mentioned inflatable capsule mechanism for in-situ sealing of underground pipelines. The construction method for an inflatable capsule mechanism for in-situ sealing of underground pipelines is as follows: first, the inflatable capsule mechanism for in-situ sealing of underground pipelines is circulated to the inside of the underground pipeline to be blocked, and then the handle is turned to drive the turntable to move, and the movement of the turntable drives the positioning support to expand outward, so that the support seat on the positioning support and the inner wall of the underground pipeline to be blocked form a supporting and positioning effect, and then the airbag body is inflated by the inflation device, so that the airbag body is expanded, thereby forming a blocking effect on the underground pipeline to be blocked.

[0022] Compared with the prior art, the present invention has the following beneficial effects:

[0023] 1. By providing an inflatable capsule mechanism for in-situ plugging of underground pipelines, which is composed of an airbag body, an inflation pipe, a pressure relief valve, a first positioning assembly, and a second positioning assembly, the underground pipeline to be blocked is plugged by inflating the airbag body, thereby improving the plugging effect of the underground pipeline;

[0024] 2. By setting a first positioning assembly and a second positioning assembly composed of a mounting plate, a turntable and a positioning support member, and opening a vortex groove on the turntable, and setting the positioning support member to be composed of a guide rod, a support seat and a force-bearing rod, it is convenient to synchronize the outward movement of multiple positioning supports, thereby realizing the first positioning assembly and the second positioning assembly to quickly pre-position the airbag body, and can improve the positioning stability of the airbag body, thereby further improving the blocking effect of the underground pipeline. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of the structure of the present invention;

[0026] Figure 2 for Figure 1 A schematic diagram of the structure at center A;

[0027] Figure 3 This is a schematic diagram of the mounting plate structure of the present invention;

[0028] Figure 4 This is a schematic diagram of the turntable structure of the present invention;

[0029] Figure 5 This is a schematic diagram of the positioning support structure of the present invention;

[0030] Figure 6 for Figure 5 A magnified schematic diagram of the structure at point B in the middle;

[0031] Figure 7 It is a schematic diagram of the positioning bolt structure;

[0032] Figure 8 This is a practical effect diagram of the present invention;

[0033] Figure 9 It is a construction flow chart of the present invention.

[0034] In the figure: airbag body 1, inflation pipe 2, pressure relief valve 3, first positioning assembly 4, second positioning assembly 5, electronic barometer 6, mounting plate 7, turntable 8, positioning support 9, guide seat 10, ball bearing 11, rotating shaft 12, vortex groove 13, rotating handle 14, guide rod 15, support seat 16, force rod 17, supporting rubber body 18, anti-slip groove 19, threaded hole 20, positioning hole 21, positioning bolt 22, positioning rod 23, underground pipeline 24, connecting rope 25. DETAILED DESCRIPTION

[0035] In order to clearly and completely describe the objectives and technical solutions of the present invention and make the advantages more clearly understood, the embodiments of the present invention are further described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are part of the embodiments of the present invention, not all of them, and are only used to explain the embodiments of the present invention, not to limit the embodiments of the present invention. All other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0036] In the description of the present invention, it should be noted that the terms "center," "middle," "upper," "lower," "left," "right," "inner," "outer," "top," "bottom," "side," "vertical," "horizontal," and the like, indicating positions or location relationships, are based on the positions or location relationships shown in the accompanying drawings and are intended only to facilitate the description of the present invention and simplify the description. They are not intended to indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limiting the present invention. Furthermore, the terms "one," "first," "second," "third," "fourth," "fifth," and "sixth" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0037] In the description of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they may refer to fixed, detachable, or integral connections; mechanical or electrical connections; direct or indirect connections through an intermediate medium; and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on the specific circumstances.

[0038] For the purpose of simplicity and illustration, the principles of the embodiments are described primarily with reference to examples. In the following description, many specific details are provided to provide a thorough understanding of the embodiments. However, it will be apparent to those skilled in the art that these embodiments may not be limited to these specific details in practice. In some instances, well-known methods and structures are not described in detail to avoid unnecessarily obscuring the understanding of these embodiments. In addition, all embodiments may be used in combination with each other.

[0039] See also Figure 1-9 , the present invention provides the following five preferred embodiments:

[0040] Embodiment 1, an inflatable capsule mechanism for in-situ plugging of underground pipelines includes an airbag body 1, an inflation pipeline 2, a pressure relief valve 3, a first positioning component 4 and a second positioning component 5. The shape of the airbag body 1 matches the shape of the inner cavity of the underground pipeline 24 to be plugged, the inner end of the inflation pipeline 2 is connected to the inner cavity of the airbag body 1, the pressure relief valve 3 is arranged at the outer port of the inflation pipeline 2, the first positioning component 4 is arranged at the front end of the airbag body 1, the second positioning component 5 is arranged at the rear end of the airbag body 1, and the second positioning component 5 is symmetrically arranged with the first positioning component 4, and the first positioning component 4 and the second positioning component 5 are used to position the airbag body 1 in the inner cavity of the underground pipeline 24 to be plugged.

[0041] An electronic barometer 6 is provided on the inflation pipe 2, and a buzzer is provided on the front side of the airbag body 1. The electronic barometer 6 and the buzzer are both electrically connected to the PLC control module on the sealing inflation capsule mechanism. By setting an inflation capsule mechanism for in-situ sealing of underground pipelines composed of the airbag body 1, the inflation pipe 2, the pressure relief valve 3, the first positioning component 4 and the second positioning component 5, the underground pipeline 24 to be blocked can be blocked by inflating the airbag body 1, thereby improving the blocking effect of the underground pipeline 24.

[0042] Embodiment 2, on the basis of embodiment 1, the first positioning assembly 4 and the second positioning assembly 5 are both composed of a mounting plate 7, a turntable 8 and a positioning support 9. The center position of the mounting plate 7 is fixedly glued to the center position of the end face of the airbag body 1, and a ball bearing 11 is fixedly installed in the center hole of the mounting plate 7. The outer end face of the mounting plate 7 is fixedly installed with a guide seat 10. The guide seat 10 is provided with a circle on its circumference. A rotating shaft 12 is integrally formed on the inner side face of the turntable 8. The rotating shaft 12 is fixedly connected to the inner ring of the ball bearing 11. A vortex groove 13 is provided on the turntable 8, and a rotating handle 14 is provided on the outer end face of the turntable 8.

[0043] The positioning support member 9 is composed of a guide rod 15, a support seat 16 and a force rod 17. The support seat 16 and the force rod 17 are fixedly welded to the guide rod 15. The cross-sections of the guide holes on the guide rod 15 and the guide seat 10 are regular hexagons, and the guide rod 15 is movably mounted in the guide hole on the guide seat 10. The force rod 17 is movably set in the vortex groove 13, and the support seats 16 on all the positioning support members 9 are on the same circumference. The inner end face of the support seat 16 is fixedly connected to the end face of the airbag body 1 by a connecting rope 25. By setting the installation The first positioning component 4 and the second positioning component 5 are composed of the mounting plate 7, the turntable 8 and the positioning support 9, and a vortex groove 13 is opened on the turntable 8, and the positioning support 9 is configured to be composed of a guide rod 15, a support seat 16 and a force-bearing rod 17, so as to facilitate the synchronous outward movement of multiple positioning supports 9, thereby realizing the rapid pre-positioning of the airbag body 1 by the first positioning component 4 and the second positioning component 5, and can improve the positioning stability of the airbag body 1, thereby further improving the blocking effect of the underground pipeline 24.

[0044] Embodiment 3, on the basis of embodiment 2, a threaded hole 20 is provided on the turntable 8, and a positioning hole 21 is provided on the mounting plate 7. The positioning hole 21 is arranged corresponding to the threaded hole 20, and the positioning hole 21 is arranged in a circle. A positioning bolt 22 is screwed and installed in the threaded hole 20, and a positioning rod 23 is integrally formed at the end of the screw. When the positioning bolt 22 is actually tightened, the positioning rod 23 is embedded in the positioning hole 21 to prevent the turntable 8 from self-rotating and ensure the overall stability of the structure.

[0045] The edge lines of the end faces of the positioning rods 23 are chamfered, and when the positioning support members 9 move outward, the support seats 16 are disposed against the inner side walls of the underground pipes 24 to be blocked.

[0046] Embodiment 4, based on embodiment 3, an embedding groove is opened on the outer side of the support seat 16, and a supporting rubber body 18 is fixedly glued in the embedding groove. The end face of the supporting rubber body 18 protrudes from the outside of the embedding groove, thereby improving the force effect with the underground pipeline 24.

[0047] The outer end surface of the supporting rubber body 18 is provided with an anti-skid groove 19 , which is a hemispherical groove, and there are multiple groups of anti-skid grooves 19 evenly provided on the outer end surface of the supporting rubber body 18 to increase friction and further ensure the stability of the structure.

[0048] Example 5. On the basis of Example 4, a construction method of an inflatable capsule mechanism for in-situ sealing of underground pipelines is provided. The construction method of an inflatable capsule mechanism for in-situ sealing of underground pipelines is used to construct the above-mentioned in-situ sealing of underground pipelines. The construction method of an inflatable capsule mechanism for in-situ sealing of underground pipelines is as follows: first, the inflatable capsule mechanism for in-situ sealing of underground pipelines is circulated to the inside of the underground pipeline 24 to be blocked, and then the handle 14 is turned to drive the turntable 8 to move, and the movement of the turntable 8 drives the positioning support 9 to expand outward, so that the support seat 16 on the positioning support 9 forms a supporting and positioning effect with the inner wall of the underground pipeline 24 to be blocked, and then the airbag body 1 is inflated by the inflation device, so that the airbag body 1 is expanded, thereby forming a blocking effect on the underground pipeline 24 to be blocked.

[0049] Although the above describes the illustrative specific implementation methods of the present application so that those skilled in the art can understand the present application, the present application is not limited to the scope of the specific implementation methods. For those of ordinary skill in the art, as long as various changes are within the spirit and scope of the present application defined and determined by the attached claims, all application creations based on the concept of the present application are protected.

Claims

1. An inflatable capsule mechanism for in-situ plugging of underground pipelines, characterized by: include: An airbag body (1), the shape of the airbag body (1) matching the shape of the inner cavity of the underground pipeline (24) to be blocked; an inflation pipe (2), wherein the inner end of the inflation pipe (2) is in communication with the inner cavity of the airbag body (1); a pressure relief valve (3), the pressure relief valve (3) being arranged at an outer port of the inflation pipe (2); A first positioning component (4), the first positioning component (4) being arranged at the front side end of the airbag body (1); A second positioning component (5) is provided at the rear end of the airbag body (1), and the second positioning component (5) is symmetrically arranged with the first positioning component (4), and the first positioning component (4) and the second positioning component (5) are used to position the airbag body (1) in the inner cavity of the underground pipeline (24) to be blocked.

2. The inflatable capsule mechanism for in-situ plugging of underground pipelines according to claim 1, characterized in that: An electronic barometer (6) is provided on the inflation pipe (2), and a buzzer is provided on the front side of the airbag body (1). Both the electronic barometer (6) and the buzzer are electrically connected to a PLC control module on the sealing and inflation capsule mechanism.

3. The inflatable capsule mechanism for in-situ plugging of underground pipelines according to claim 1, characterized in that: The first positioning assembly (4) and the second positioning assembly (5) are both composed of a mounting plate (7), a turntable (8) and a positioning support (9). The center position of the mounting plate (7) is fixedly glued to the center position of the end face of the airbag body (1), and a ball bearing (11) is fixedly installed in the center hole of the mounting plate (7). The outer end face of the mounting plate (7) is fixedly installed with a guide seat (10), and the guide seat (10) is provided with a circle. The inner side surface of the turntable (8) is integrally formed with a rotating shaft (12), and the rotating shaft (12) is fixedly connected to the inner ring of the ball bearing (11). A vortex groove (13) is provided on the turntable (8), and a rotating handle (14) is provided on the outer end face of the turntable (8).

4. The inflatable capsule mechanism for in-situ plugging of underground pipelines according to claim 3, characterized in that: The positioning support member (9) is composed of a guide rod (15), a support seat (16) and a force-bearing rod (17). The support seat (16) and the force-bearing rod (17) are fixedly welded to the guide rod (15). The cross-sections of the guide holes on the guide rod (15) and the guide seat (10) are both regular hexagons, and the guide rod (15) is movably installed in the guide hole on the guide seat (10). The force-bearing rod (17) is movably set in the vortex groove (13). The support seats (16) on all the positioning support members (9) are on the same circumference, and the inner end surface of the support seat (16) is fixedly connected to the end surface of the airbag body (1) through a connecting rope (25).

5. The inflatable capsule mechanism for in-situ plugging of underground pipelines according to claim 4, characterized in that: The turntable (8) is provided with a threaded hole (20), and the mounting plate (7) is provided with a positioning hole (21). The positioning hole (21) is arranged corresponding to the threaded hole (20), and the positioning hole (21) is provided with a circle. A positioning bolt (22) is screwed and installed in the threaded hole (20), and a positioning rod (23) is integrally formed at the end of the screw. When the positioning bolt (22) is actually tightened, the positioning rod (23) is embedded in the positioning hole (21).

6. The inflatable capsule mechanism for in-situ plugging of underground pipelines according to claim 5, characterized in that: The edge line of the end surface of the positioning rod (23) is chamfered.

7. The inflatable capsule mechanism for in-situ plugging of underground pipelines according to claim 6, characterized in that: When the positioning support member (9) moves outward, the support seat (16) is disposed against the inner side wall of the underground pipeline (24) to be blocked.

8. The inflatable capsule mechanism for in-situ plugging of underground pipelines according to claim 7, characterized in that: An embedding groove is provided on the outer side of the support seat (16), a supporting rubber body (18) is fixedly glued in the embedding groove, and the end surface of the supporting rubber body (18) protrudes outside the embedding groove.

9. The inflatable capsule mechanism for in-situ plugging of underground pipelines according to claim 8, characterized in that: The outer end surface of the supporting rubber body (18) is provided with an anti-skid groove (19), the anti-skid groove (19) is a hemispherical notch, and multiple groups of anti-skid grooves (19) are evenly provided on the outer end surface of the supporting rubber body (18).

10. A construction method for an in-situ plugging inflatable capsule mechanism for underground pipelines according to any one of claims 1 to 9, characterized in that: The construction method of the inflatable capsule mechanism for in-situ plugging of underground pipelines is as follows: first, the in-situ plugging of the inflatable capsule mechanism for underground pipelines is circulated to the inside of the underground pipeline (24) to be plugged, and then the handle (14) is rotated to drive the turntable (8) to move, and the movement of the turntable (8) drives the positioning support member (9) to expand outward, so that the support seat (16) on the positioning support member (9) and the inner side wall of the underground pipeline (24) to be plugged form a supporting and positioning effect, and then the airbag body (1) is inflated by the inflation device, so that the airbag body (1) is expanded, thereby forming a plugging effect on the underground pipeline (24) to be plugged.

Images