A municipal pipeline based on municipal layout with a plugging air bag

By designing a municipal-controlled airbag blocking system, the problems of climbing risks and low efficiency in municipal pipeline maintenance have been solved, achieving safe and stable pipeline maintenance.

CN117386922BActive Publication Date: 2026-07-24CHUZHOU CONSTR MANAGEMENT CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
CHUZHOU CONSTR MANAGEMENT CO LTD
Filing Date
2023-11-30
Publication Date
2026-07-24

AI Technical Summary

Technical Problem

In existing technologies, when personnel need to maintain municipal pipelines, they need to climb manually and it is difficult to intercept the cross-section of the pipeline, which poses safety risks and reduces maintenance efficiency.

Method used

A municipal-controlled sealing airbag system was designed, including components such as a rotating ring, rotating plate, clamping plate, and mounting ring. Through the synergistic effect of these components, the system can seal the pipeline and ensure safe transportation, thereby ensuring the safe lowering and raising of personnel and equipment.

Benefits of technology

It enables safe and stable transportation and maintenance within pipelines, reduces climbing risks, and improves maintenance efficiency.

✦ Generated by Eureka AI based on patent content.

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Abstract

The application discloses a kind of municipal pipeline based on municipal control with plugging air bag, to solve the technical problem that personnel needs to climb and is difficult to intercept the cross section of pipeline when needing to maintain municipal pipeline, so that personnel not only has certain risk in the process of climbing, and the efficiency of maintenance of pipeline is reduced due to the effect of water body, its structure includes first municipal pipeline, the inner side wall of first municipal pipeline is fixed with rotating ring, the inner side wall of rotating ring is fixed with inner plate, and the lower portion of inner plate is provided with through hole.The installation ring is installed in the inside of second municipal pipeline, the support plate is installed on the upper portion of installation ring, the air pressure of upper air bag is increased, so that installation ring can stably move in vertical direction, since first municipal pipeline is deeply buried in soil deep place, personnel and equipment can be safely transported into first municipal pipeline, so as to repair first municipal pipeline.
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Description

Technical Field

[0001] This invention relates to the field of municipal pipeline equipment technology, specifically to a municipal pipeline equipped with a sealing airbag based on municipal deployment. Background Technology

[0002] Pipeline plugging airbags, also known as pipe blocking airbags, water-sealing airbags, sealing airbags, or inflatable pipe plugs, are rubber products made from high-molecular synthetic materials such as rubber and fiber fabrics through a high-temperature vulcanization process. They come in various specifications and shapes and are used for water conveyance, sewage discharge, and sludge removal and maintenance in pipelines and culverts. They are mainly used for emergency repairs of drainage and sewage pipelines, water tightness tests, and leakage detection. They can quickly block water flow in different pipe diameters, on different planes, and at different locations, making them an ideal tool for underground pipeline drainage and sludge treatment.

[0003] According to publicly available patent 202121603044.5, a sealing airbag for municipal pipelines is disclosed, relating to the field of sealing airbags. It includes: an annular sealing airbag and an anti-scratch structure disposed on the annular sealing airbag. The anti-scratch structure prevents the annular sealing airbag from being scratched when entering and exiting the municipal pipeline. The anti-scratch structure includes at least a first protective plate, a second protective plate, a sliding support rod, and a sliding positioning mechanism. The first and second protective plates are located at opposite ends of the annular sealing airbag and are arranged parallel to each other. Supported by the sliding support rod, the first and second protective plates can move relative to each other. The sliding support rod passes through the inner side of the annular sealing airbag. After the first and second protective plates move in opposite directions to their maximum length under the support of the sliding support rod, their positions are fixed by the sliding positioning mechanism. The invention employs a scratch-resistant structure to prevent the annular sealing airbag from being scratched when entering and exiting municipal pipelines, reducing wear and extending service life. During the development of this invention, the inventors discovered that existing technologies suffer from at least the following unresolved issues: Current methods for maintaining municipal pipelines require manual climbing, which is difficult due to the challenge of intercepting the pipeline's cross-section. This not only poses risks to personnel during the climb but also reduces maintenance efficiency due to the influence of water. Therefore, a new technical solution is needed to address these problems. Summary of the Invention

[0004] The purpose of this invention is to provide a municipal pipeline equipped with a sealing airbag based on municipal deployment, in order to solve the technical problem that when personnel need to maintain municipal pipelines, they need to climb the pipeline manually and it is difficult to intercept the cross-section of the pipeline. This not only makes the personnel risky during the climbing process, but also reduces the efficiency of pipeline maintenance due to the effect of water.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a municipal pipeline with a sealing airbag based on municipal deployment, comprising a first municipal pipeline, a rotating ring fixed to the inner wall of the first municipal pipeline, an inner plate fixed to the inner wall of the rotating ring, a through hole at the bottom of the inner plate, a rotating shaft extending from the center of the inner plate, and two rotating plates sleeved on the rotating shaft; a second municipal pipeline, the second municipal pipeline communicating with the inner cavity of the first municipal pipeline, an annular groove opened at the port of the second municipal pipeline, a retaining plate embedded in the annular groove, the two ends of the retaining plate being rotatably connected to the second municipal pipeline through a central shaft, the... An elastic cloth and a third airbag are distributed between the clamping plate and the annular groove. The elastic cloth is located above the third airbag. Multiple third airbags are distributed along the central axis of the clamping plate. Multiple guide grooves are opened on the inner side wall of the second municipal pipeline. An installation ring is located in the inner cavity of the second municipal pipeline. A guide block extends from the outer side wall of the installation ring at the corresponding position of the guide groove. The guide block is slidably connected to the guide groove. A second airbag is installed at the top and bottom of the guide block. The end of the second airbag is fixedly connected to the top and bottom of the inner cavity of the guide groove. A support plate is installed inside the installation ring through a rotating seat.

[0006] In a preferred embodiment of the present invention, a mounting base is fixedly connected to the top of the inner cavity of the rotating ring, a mounting block is mounted on the surface of the rotating plate via a shaft, and a first airbag is fixedly mounted between the mounting block and the mounting base.

[0007] In a preferred embodiment of the present invention, the inner plate has a guide groove on its surface, and a moving block is fixed on the side of the rotating plate near the inner plate, the moving block being slidably connected to the guide groove.

[0008] In a preferred embodiment of the present invention, the inner sidewall of the rotating ring is provided with a rotating groove, the end of the rotating plate extends with an extension ring, the extension ring is rotatably connected to the rotating groove, and the other end of the rotating plate is sleeved on the rotating shaft.

[0009] In a preferred embodiment of the present invention, two guide rods are laterally distributed at the end of the second municipal pipeline. The two guide rods are parallel to each other and are fixed at both ends in the annular groove. The guide rods pass through the clamping plate.

[0010] In a preferred embodiment of the present invention, the inner wall of the guide groove is inlaid with balls, and the guide block makes rolling contact with the balls.

[0011] In a preferred embodiment of the present invention, a pull rope is fixed between the guide block and the top of the inner cavity of the guide groove by bolts, and the length of the pull rope is the displacement of the mounting ring in the inner cavity of the second municipal pipeline.

[0012] In a preferred embodiment of the present invention, a plurality of locking blocks are welded to the top outer edge of the support plate. The locking blocks are L-shaped and can be locked onto the top of the mounting ring.

[0013] In a preferred embodiment of the present invention, the bottom of the mounting ring is fixed with an outer ring by bolts, and the outer side wall of the outer ring is in close contact with the inner side wall of the second municipal pipeline.

[0014] In a preferred embodiment of the present invention, guide posts are vertically distributed in the inner cavity of the guide groove, the guide posts vertically penetrate the guide block, and the second airbag is sleeved on the outside of the guide posts.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0016] 1. This invention involves installing an installation ring inside a second municipal pipeline, with a support plate installed on the upper part of the installation ring. The installation ring can move along a guide groove via a guide block. A second airbag is installed on the upper and lower parts of the guide block, respectively. When the installation ring moves from top to bottom along the second municipal pipeline, the air pressure of the lower airbag decreases, while the air pressure of the upper airbag increases, allowing the installation ring to move stably in the vertical direction. Since the first municipal pipeline is buried deep in the soil, personnel and equipment can be safely transported into the first municipal pipeline for maintenance.

[0017] 2. This invention involves installing an inner plate and two rotatable rotating plates inside the first municipal pipeline. A through hole is opened at the bottom of the inner plate to allow sewage to flow. When maintenance is required on the downstream first municipal pipeline, the first airbag is pressurized. At this time, both rotating plates rotate along the inner plate until they contact each other. This seals the through hole inside the inner plate, preventing sewage from continuing to flow, thus facilitating maintenance personnel to repair the downstream first municipal pipeline.

[0018] 3. This invention features a semi-circular clamping plate installed at the inlet of the second municipal pipeline, which fits snugly against the annular groove. Since the second municipal pipeline has a certain depth, when personnel descend with the installation ring, the clamping plate is pushed to the opposite side by the third airbag. At this time, an elastic cloth is pulled out and placed horizontally at the inlet of the second municipal pipeline, preventing foreign objects from falling into the pipeline and hitting personnel's heads during descent, thus improving the safety of personnel moving within the pipeline. Attached Figure Description

[0019] Other features, objects, and advantages of the present invention will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings:

[0020] Figure 1 This is the front view of the present invention;

[0021] Figure 2 This is a diagram of the internal structure of the first municipal pipeline of the present invention;

[0022] Figure 3 This is a diagram of the rotating plate connection structure of the present invention;

[0023] Figure 4 This is a structural diagram of the mounting ring of the present invention;

[0024] Figure 5 This is a diagram of the card plate mounting structure of the present invention;

[0025] In the diagram: 1. First municipal pipeline; 11. Inner plate; 111. Rotating shaft; 112. Moving block; 113. Guide groove; 12. Rotating plate; 121. Mounting block; 122. Extension ring; 13. Rotating ring; 14. Mounting seat; 141. First airbag;

[0026] 2. Second municipal pipeline; 21. Clamping plate; 22. Guide rod; 23. Guide groove; 24. Second airbag; 25. Elastic cloth; 26. Circular groove; 27. Third airbag;

[0027] 3. Mounting ring; 31. Locking block; 32. Guide block; 321. Guide post; 322. Pull rope; 33. Support plate; 34. Outer ring. Detailed Implementation

[0028] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0029] In the description of this invention, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0030] Example 1: A municipal pipeline with a sealing airbag based on municipal deployment includes a first municipal pipeline 1. A rotating ring 13 is fixed to the inner wall of the first municipal pipeline 1. An inner plate 11 is fixed to the inner wall of the rotating ring 13. A through hole is opened at the bottom of the inner plate 11. A rotating shaft 111 extends from the center of the inner plate 11. Two rotating plates 12 are sleeved on the rotating shaft 111. The first municipal pipeline 1 is buried deep in the soil. The first municipal pipeline 1 is used to divert municipal sewage. When maintenance is required on the downstream section of the first municipal pipeline 1 where the sewage flows, the inner plate 11 and the two rotating plates 12... The rotating plates 12 work together to seal the through hole, preventing sewage flow from affecting the maintenance of the first municipal pipeline 1. A mounting base 14 is fixedly connected to the top of the inner cavity of the rotating ring 13. A mounting block 121 is mounted on the surface of the rotating plate 12 via a shaft. A first airbag 141 is fixed between the mounting block 121 and the mounting base 14. The mounting base 14 and the first airbag 141 work together to generate a thrust on the mounting block 121, allowing the rotating plate 12 to rotate stably downwards along the rotating shaft 111 until the two rotating plates 12 contact each other, thus sealing the through hole. A guide groove 113 is formed on the surface of the inner plate 11. A moving block 112 is fixed to the side of the rotating plate 12 near the inner plate 11. The moving block 112 is slidably connected to the guide groove 113. The moving block 112 and the guide groove 113 work together to control the movement trajectory of the rotating plate 12 along the surface of the inner plate 11, preventing gaps from forming between the rotating plate 12 and the inner plate 11 during rotation, which would cause the intercepted sewage to overflow. The inner wall of the rotating ring 13 has a rotating groove, and the end of the rotating plate 12 extends into an extension ring 122. The extension ring 122 is rotatably connected to the rotating groove. The other end of the rotating plate 12 is fitted onto the rotating shaft 111, so that the rotating groove can limit the end of the rotating plate 12 away from the rotating shaft 111, so that the rotating plate 12 can rotate closely against the surface of the inner plate 11 during rotation.

[0031] Example 2: A second municipal pipeline 2 is connected to the inner cavity of the first municipal pipeline 1. An annular groove 26 is formed at the end of the second municipal pipeline 2, and a retaining plate 21 is embedded in the groove 26. Both ends of the retaining plate 21 are rotatably connected to the second municipal pipeline 2 via a central axis. An elastic cloth 25 and a third airbag 27 are distributed between the retaining plate 21 and the annular groove 26. The elastic cloth 25 is located above the third airbag 27. Multiple third airbags 27 are distributed along the central axis of the retaining plate 21. Multiple guide grooves 23 are formed on the inner wall of the second municipal pipeline 2. The second municipal pipeline 2 connects the first municipal pipeline 1 to the ground, facilitating the entry of maintenance personnel into the first municipal pipeline 1. The third airbags 27 control the pushing and pulling of the retaining plate 21. When personnel enter the inner cavity of the second municipal pipeline 2, the retaining plate 21 is pushed and locked into the other half of the annular groove 26. At this time, the elastic cloth 25 is in an open state, preventing foreign objects from falling into the second municipal pipeline 2. The airbag 27 pulls on the clamping plate 21 as the person is about to be lifted out, causing the clamping plate 21 to reset. The guide groove 23 is used to control the movement trajectory of the installation ring 3. Two guide rods 22 are distributed laterally at the end of the second municipal pipeline 2. The two guide rods 22 are parallel and fixed at both ends in the ring groove 26. The guide rods 22 pass through the clamping plate 21. The use of the guide rods 22 can control the movement trajectory of the clamping plate 21. When the clamping plate 21 is pushed by an external force, it needs to be briefly pushed out of the ring groove 26 and then locked back into the ring groove 26. In this process, in order to make the clamping plate 21 lock into the ring groove 26 accurately, the guide rods 22 are used to control the horizontal movement of the clamping plate 21. The inner wall of the guide groove 23 is embedded with balls. The guide block 32 rolls in contact with the balls. The balls can reduce the friction of the guide block 32 during the movement, so that the guide block 32 can slide smoothly in the guide groove 23.

[0032] Example 3: An installation ring 3 is located within the inner cavity of the second municipal pipeline 2. A guide block 32 extends from the outer wall of the installation ring 3 at the corresponding location of the guide groove 23. The guide block 32 is slidably connected to the guide groove 23. A second airbag 24 is installed at the top and bottom of the guide block 32, and the ends of the second airbag 24 are fixedly connected to the top and bottom of the inner cavity of the guide groove 23. A support plate 33 is installed inside the installation ring 3 via a rotating seat. The installation ring 3 and the support plate 33 mutually support personnel and equipment. The guide block 32 slides along the guide groove 23. The guide block 32 is located at the upper and lower two... The two airbags 24 work together to control the vertical movement of the mounting ring 3 and prevent accidental lifting or lowering of maintenance personnel. A pull rope 322 is bolted between the guide block 32 and the top of the inner cavity of the guide groove 23. The length of the pull rope 322 is the displacement of the mounting ring 3 within the inner cavity of the second municipal pipeline 2. The pull rope 322 acts as a safety device for the mounting ring 3, preventing it from falling due to the rupture of the second airbag 24. The pull rope 322 also pulls on the falling mounting ring 3, reducing the impact of the mounting ring 3 on the bottom of the guide groove 23 during rapid descent, thus minimizing the risk of injury to personnel. To prevent injury to personnel; multiple locking blocks 31 are welded to the top outer edge of the support plate 33. The locking blocks 31 have an L-shaped structure and can be locked onto the top of the mounting ring 3. The use of the locking blocks 31 can improve the load-bearing strength of the support plate 33, so that the support plate 33 can be stably positioned in the inner cavity of the mounting ring 3, preventing it from falling under the load of personnel and equipment and thus affecting personnel safety; the bottom of the mounting ring 3 is fixed with an outer ring 34 by bolts. The outer side wall of the outer ring 34 is in close contact with the inner side wall of the second municipal pipeline 2 and slides in contact. The outer ring 34 can be used to scrape the inner side wall of the second municipal pipeline 2. The debris and other contaminants on the inner wall of the second municipal pipeline 2 are scraped away to prevent them from falling and affecting personnel safety during the process of moving up and down. The inner cavity of the guide groove 23 has guide posts 321 vertically distributed, which vertically penetrate the guide block 32. The second airbag 24 is fitted on the outside of the guide post 321. The guide post 321 can control the stability of the installation ring 3 in the vertical direction, so that the installation ring 3 can remain stable during the movement and avoid the installation ring 3 getting stuck in the inner cavity of the second municipal pipeline 2 during the movement.

[0033] The first airbag 141, the second airbag 24, and the third airbag 27 are connected to an external inflator.

[0034] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the scope of the invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0035] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A municipal pipeline equipped with a sealing airbag based on municipal deployment, comprising a first municipal pipeline (1), characterized in that: The inner wall of the first municipal pipeline (1) is fixed with a rotating ring (13), and the inner wall of the rotating ring (13) is fixed with an inner plate (11). A through hole is opened at the bottom of the inner plate (11), and a rotating shaft (111) extends from the center of the inner plate (11). Two rotating plates (12) are sleeved on the rotating shaft (111). The second municipal pipeline (2) is connected to the inner cavity of the first municipal pipeline (1). A ring groove (26) is opened at the port of the second municipal pipeline (2). A clamping plate (21) is embedded in the ring groove (26). The two ends of the clamping plate (21) are rotatably connected to the second municipal pipeline (2) through a central axis. An elastic cloth (25) and a third airbag (27) are distributed between the clamping plate (21) and the ring groove (26). The elastic cloth (25) is located above the third airbag (27). Multiple third airbags (27) are distributed along the central axis of the clamping plate (21). Multiple guide grooves (23) are opened on the inner wall of the second municipal pipeline (2). The mounting ring (3) is located in the inner cavity of the second municipal pipeline (2). A guide block (32) extends from the outer wall of the mounting ring (3) at the corresponding position of the guide groove (23). The guide block (32) is slidably connected to the guide groove (23). A second airbag (24) is installed at the top and bottom of the guide block (32). The end of the second airbag (24) is fixedly connected to the top and bottom of the inner cavity of the guide groove (23). A support plate (33) is installed inside the mounting ring (3) through a rotating seat. The top of the inner cavity of the rotating ring (13) is fixedly connected to the mounting base (14), and the surface of the rotating plate (12) is mounted with a mounting block (121) via a shaft. A first airbag (141) is installed and fixed between the mounting block (121) and the mounting base (14). A pull rope (322) is fixed between the guide block (32) and the top of the inner cavity of the guide groove (23) by bolts. The length of the pull rope (322) is the displacement of the mounting ring (3) in the inner cavity of the second municipal pipeline (2).

2. A municipal pipeline with sealing airbags based on municipal deployment according to claim 1, characterized in that: The inner plate (11) has a guide groove (113) on its surface. The rotating plate (12) has a moving block (112) fixed on the side near the inner plate (11). The moving block (112) is slidably connected to the guide groove (113).

3. A municipal pipeline with sealing airbags based on municipal deployment according to claim 1, characterized in that: The inner wall of the rotating ring (13) has a rotating groove, and the end of the rotating plate (12) extends into an extension ring (122). The extension ring (122) is rotatably connected to the rotating groove, and the other end of the rotating plate (12) is fitted onto the rotating shaft (111).

4. A municipal pipeline with sealing airbags based on municipal deployment according to claim 1, characterized in that: The second municipal pipeline (2) has two guide rods (22) distributed laterally at its end. The two guide rods (22) are distributed in parallel and fixed at both ends in the annular groove (26). The guide rods (22) pass through the clamping plate (21).

5. A municipal pipeline with sealing airbags based on municipal deployment according to claim 1, characterized in that: The inner wall of the guide groove (23) is inlaid with balls, and the guide block (32) makes rolling contact with the balls.

6. A municipal pipeline with sealing airbags based on municipal deployment according to claim 1, characterized in that: The support plate (33) has multiple locking blocks (31) welded to its top outer edge. The locking blocks (31) are L-shaped and can be locked onto the top of the mounting ring (3).

7. A municipal pipeline with sealing airbags based on municipal deployment according to claim 1, characterized in that: The bottom of the mounting ring (3) is fixed with an outer ring (34) by bolts. The outer side wall of the outer ring (34) is in close contact with the inner side wall of the second municipal pipeline (2).

8. A municipal pipeline with a sealing airbag based on municipal deployment according to claim 1, characterized in that: The inner cavity of the guide groove (23) has guide posts (321) vertically distributed, the guide posts (321) vertically penetrating the guide block (32), and the second airbag (24) is sleeved on the outside of the guide posts (321).