Split mounting type pipeline local repairing air bag with intelligent pressure control mechanism

By designing an modular pipeline local repair airbag with an intelligent pressure control mechanism, and utilizing components such as an electric telescopic rod and an expansion plate, the problem of adjusting pipelines of different sizes was solved, realizing automatic adjustment and repair of pipelines and improving operational convenience.

CN223975742UActive Publication Date: 2026-03-06CSCEC BRIDGES CO LTD +1
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-11
Publication Date
2026-03-06

AI Technical Summary

Technical Problem

Existing technology makes it difficult to adjust inside pipes of different sizes, resulting in operational inconvenience.

Method used

A modular pipe repair airbag with an intelligent pressure control mechanism was designed. Through the combined use of an electric telescopic rod, a sliding sleeve, an adjusting rod, an expansion plate, and an inflatable airbag, the pipe size can be adjusted and repaired.

Benefits of technology

It enables automatic adjustment and repair based on pipe size, making it convenient for staff to plug leaks and repair inside pipes, and adapts to pipes of different sizes.

✦ Generated by Eureka AI based on patent content.

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    Figure CN223975742U_ABST
Patent Text Reader

Abstract

The utility model provides a split mounting type pipeline local repairing air bag with an intelligent pressure control mechanism, and relates to the field of split mounting type pipeline repairing. Comprising a connecting column, an adjusting mechanism capable of adjusting according to the size of a pipeline is arranged on the outer surface of the connecting column, the adjusting mechanism comprises a sliding sleeve slidably connected with the outer surface of the connecting column, a first sliding groove is formed in the sliding sleeve, and an electric telescopic rod is fixedly connected into the first sliding groove. According to the pipeline local repairing air bag, through cooperative use of the electric telescopic rod, the sliding sleeve, the first sliding groove, the adjusting rod, the expansion plate, the inflation air bag and the limiting rod, when a pipeline is damaged and needs to be repaired, a worker can place the device in the pipeline, leakage stoppage is conducted on the damaged position of the pipeline, and the pipeline local repairing air bag is convenient to use. And by means of the electric telescopic rod, adjustment can be conducted according to the size of the pipeline, and adjustment according to the size of the pipeline is achieved.
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Description

Technical Field

[0001] This utility model relates to a pipeline partial repair airbag, specifically a modular pipeline partial repair airbag with an intelligent pressure control mechanism, belonging to the field of modular pipeline repair technology. Background Technology

[0002] Pipeline repair refers to the use of various techniques to restore damaged or leaking pipelines to their normal function. The repair includes two techniques: external anti-corrosion layer repair and internal repair.

[0003] A search revealed a trenchless airbag-type pipe repair device disclosed in Chinese Patent Publication No. CN204226951U. This device includes a cylindrical inner tube and an airbag encased within the inner tube, with an inflation space inside the airbag. This novel trenchless airbag-type pipe repair device requires no excavation; it can be inserted into the pipe and the airbag inflated to repair localized pipe damage. The middle of the airbag is tightly connected to the inner tube, while the two ends of the airbag are not connected to the inner tube. After inflation, the airbag expands, separating the two ends from the inner tube, and the airbag inflates to its maximum size, achieving trenchless localized pipe repair.

[0004] The pipeline repair equipment in the aforementioned patents, while capable of partial repair without excavation, can only repair pipelines of specific sizes and is difficult to adjust for different sizes of pipelines, making operation inconvenient. To address this, we provide an assembled pipeline partial repair airbag with an intelligent pressure control mechanism to solve the above problems. Utility Model Content

[0005] The purpose of this invention is to provide a modular pipe partial repair airbag with an intelligent pressure control mechanism to solve the above-mentioned problems, thereby addressing the difficulty in adjusting the airbag inside pipes of different sizes in the prior art.

[0006] This utility model is achieved through the following technical solution: a modular pipe partial repair airbag with an intelligent pressure control mechanism, including a connecting column, an adjustment mechanism that can be adjusted according to the pipe size on the outer surface of the connecting column, the adjustment mechanism including a sliding sleeve that is slidably connected to the outer surface of the connecting column, a first sliding groove being opened inside the sliding sleeve, an electric telescopic rod being fixedly connected inside the first sliding groove, an end of the electric telescopic rod away from the first sliding groove being fixedly connected to one end of the connecting column, an adjustment rod being hinged to the outer surface of the sliding sleeve, an expansion plate being hinged to the end of the adjustment rod away from the sliding sleeve, and an inflatable airbag being fixedly connected to the outer surface of the expansion plate.

[0007] Preferably, a first fixing plate is fixedly connected to the outer surface of the connecting column, and a second sliding groove is provided inside the first fixing plate. A limit rod is slidably connected inside the second sliding groove. When the expansion plate is being adjusted, the limit plate can limit the expansion plate.

[0008] Preferably, one side of the expansion plate is fixedly connected to one end of the limiting rod, and the other end of the connecting column is fixedly connected to a second fixing plate. A connecting rod is fixedly connected to one side of the second fixing plate, and the connecting rod is fixed to the second fixing plate, which facilitates the operator to repair the device inside the pipeline.

[0009] Preferably, an expansion frame is hinged to one side of the second fixed plate, and a sliding block is hinged to the end of the expansion frame away from the second fixed plate. A spring is fixedly connected to one side of the sliding block. The expansion frame can move inside the pipe, which facilitates pipe repair.

[0010] Preferably, the end of the spring away from the sliding block is fixedly connected to one side of the second fixed plate, the outer surface of the connecting rod is sleeved with the inside of the spring, and an air pump is fixedly connected inside the connecting rod. The air pump can deliver gas to the inflatable airbag to seal leaks at damaged locations.

[0011] Preferably, the outlet of the air pump is fixedly connected to an inflation pipe, which passes through the connecting rod and the first fixing plate and is fixedly connected to the connecting rod and the first fixing plate. The inflation pipe is installed on the air pump and can be used for gas delivery.

[0012] Preferably, the outlet of the inflation tube is fixedly connected to the inlet of the inflation bladder, and the outer surface of the connecting rod is threaded with a knob. The expansion frame can be adjusted by turning the knob, which is convenient for adjustment according to the size of the tube.

[0013] Preferably, the outer surface of the connecting rod is slidably connected to the inside of the sliding block, and the outer surface of the expansion frame is slidably connected to the pipe body. The connecting rod allows the device to slide inside the pipe body.

[0014] This utility model provides a modular pipeline partial repair airbag with an intelligent pressure control mechanism, which has the following beneficial effects:

[0015] 1. This pipeline partial repair airbag, through the combined use of an electric telescopic rod, sliding sleeve, first sliding groove, adjusting rod, expansion plate, inflatable airbag, and limiting rod, allows workers to place the device inside the pipeline to seal the leak when the pipeline is damaged, facilitating pipeline repair. The electric telescopic rod can be adjusted according to the size of the pipeline.

[0016] 2. The pipe partial repair airbag uses a combination of a second fixing plate, connecting rod, expansion frame, sliding block, spring and knob. The operator can turn the knob to adjust the expansion frame, which can clamp the inside of the pipe. This allows the device to move inside the pipe, making it convenient to plug leaks at distant damaged locations and facilitating repairs. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall cross-sectional three-dimensional structure of this utility model;

[0018] Figure 2 This is a cross-sectional three-dimensional structural diagram of the adjustment mechanism of this utility model;

[0019] Figure 3 This is a three-dimensional cross-sectional view of the connecting rod of this utility model;

[0020] Figure 4 This is a three-dimensional structural diagram of the moving mechanism of this utility model.

[0021] [Explanation of Key Component Symbols]

[0022] 1. Connecting column;

[0023] 2. Adjustment mechanism; 201. Electric telescopic rod; 202. Sliding sleeve; 203. First slide groove; 204. Adjustment rod; 205. Expansion plate; 206. Inflatable airbag; 207. Limiting rod;

[0024] 3. First fixing plate; 4. Second slide groove; 5. Second fixing plate; 6. Connecting rod; 7. Expansion frame; 8. Sliding block; 9. Spring; 10. Knob; 11. Inflation pipe; 12. Air pump; 13. Pipe body. Detailed Implementation

[0025] This utility model embodiment provides an assembled pipeline partial repair airbag with an intelligent pressure control mechanism.

[0026] Please see Figure 1 The device includes a connecting column 1, with a first fixing plate 3 fixedly connected to the outer surface of the connecting column 1. A second sliding groove 4 is provided inside the first fixing plate 3, and a limit rod 207 is slidably connected inside the second sliding groove 4. The connecting column 1 is installed inside the first fixing plate 3. The second sliding groove 4 provided on the first fixing plate 3 allows the limit rod 207 to slide inside it. The limit rod 207 can restrict the expansion plate 205 and prevent the expansion plate 205 from tilting during adjustment.

[0027] Please see Figure 2The outer surface of the connecting column 1 is provided with an adjustment mechanism 2 that can be adjusted according to the pipe size. The adjustment mechanism 2 includes a sliding sleeve 202 that is slidably connected to the outer surface of the connecting column 1. The sliding sleeve 202 has a first groove 203 inside. An electric telescopic rod 201 is fixedly connected inside the first groove 203. One end of the electric telescopic rod 201 away from the first groove 203 is fixedly connected to one end of the connecting column 1. An adjustment rod 204 is hinged to the outer surface of the sliding sleeve 202. An expansion plate 205 is hinged to the end of the adjustment rod 204 away from the sliding sleeve 202. The electric telescopic rod 201 can drive the sliding sleeve 202 to slide on the connecting column 1, thereby driving the expansion plates 205 on both sides to be adjusted, so as to adjust according to the internal size of the pipe.

[0028] Please see Figure 3 One side of the expansion plate 205 is fixedly connected to one end of the limiting rod 207, and the other end of the connecting column 1 is fixedly connected to the second fixing plate 5. An expansion frame 7 is hinged to one side of the second fixing plate 5. A sliding block 8 is hinged to the end of the expansion frame 7 away from the second fixing plate 5. A spring 9 is fixedly connected to one side of the sliding block 8. The expansion frame 7 is installed on the second fixing plate 5 and the sliding block 8. When the sliding block 8 slides, the expansion frame 7 can fit against the inner wall of the pipe, making it convenient for workers to push the device to move inside the pipe. The spring 9 is installed on the sliding block 8, and the spring 9 can support the sliding block 8.

[0029] One end of the spring 9 away from the sliding block 8 is fixedly connected to one side of the second fixed plate 5. The outer surface of the connecting rod 6 is sleeved with the inside of the spring 9. An air pump 12 is fixedly connected inside the connecting rod 6. The air pump 12 is installed inside the connecting rod 6 and can inflate the airbag 206 to seal leaks at the location of pipe rupture. The spring 9 is installed on the connecting rod 6 and can support the adjustment of the sliding block 8. The outlet of the air pump 12 is fixedly connected to the inflation pipe 11, and the outlet of the inflation pipe 11 is fixedly connected to the inlet of the airbag 206. A knob 10 is threadedly connected to the outer surface of the connecting rod 6. The inflation pipe 11 is installed on the airbag 206 and can deliver gas to the airbag 206. The operator can turn the knob 10 to push the sliding block 8 for adjustment, thereby adjusting the expansion frame 7.

[0030] Please see Figure 4The inflation tube 11 passes through the connecting rod 6 and the first fixing plate 3 and is fixedly connected to the connecting rod 6 and the first fixing plate 3. The inflation tube 11 is installed on the air pump 12, and the gas generated by the air pump 12 can be transported through the inflation tube 11. The inflation tube 11 is installed inside the connecting rod 6 and the first fixing plate 3 to play a fixing role. The connecting rod 6 is fixedly connected to one side of the second fixing plate 5. The limiting rod 207 is installed on the expansion plate 205. When the expansion plate 205 is adjusted, it can play a stabilizing role. The connecting column 1 is installed on the second fixing plate 5, and the adjusting mechanism 2 can be installed on the second fixing plate 5. The connecting rod 6 is installed on the second fixed plate 5, which allows the staff to hold the connecting rod 6 and move the adjusting mechanism 2 inside the pipe. The outer surface of the connecting rod 6 is slidably connected to the inside of the sliding block 8. The outer surface of the expansion frame 7 is slidably connected to the pipe body 13. The sliding block 8 can slide on the connecting rod 6, which allows the expansion frame 7 to be adjusted according to the size of the pipe body 13 by pushing the sliding block 8. This allows the expansion frames 7 on both sides to fit against the inner wall of the pipe body 13. The outer surface of the expansion plate 205 is fixedly connected to the inflatable airbag 206.

[0031] The electric telescopic rod 201, inflatable airbag 206, spring 9, air pump 12 and pipe body 13 in this application are all common electrical devices in the prior art, and their models or specific structures will not be described in detail in this application.

[0032] Working principle: When pipeline repair is required, the operator can place the device inside the pipeline body 13. The operator can turn the knob 10 to push the sliding block 8 to adjust the expansion frame 7, so that the expansion frame 7 can fit against the inner wall of the pipeline body 13, making it easy to move the device inside the pipeline body 13. When the device moves to the damaged position of the pipeline body 13, the electric telescopic rod 201 can drive the sliding sleeve 202 to slide on the upper surface of the connecting column 1, thereby causing the expansion plates 205 on both sides of the sliding sleeve 202 to expand, making it easy for the inflatable airbag 206 to fit against the damaged position. The air pump 12 is started to inflate the airbag 206 through the inflation pipe 11. The inflatable airbag 206 can seal the leak at the damaged position of the pipeline body 13, making it easy for the operator to repair the damaged position of the pipeline body 13, and can be adjusted according to the size of the pipeline.

[0033] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A sectionalized pipe local repair air bag with intelligent pressure control mechanism, comprising a connecting column (1), characterized in that: The outer surface of the connecting column (1) is provided with an adjusting mechanism (2) which can be adjusted according to the size of the pipeline, the adjusting mechanism (2) comprises a sliding sleeve (202) which is in sliding connection with the outer surface of the connecting column (1), a first sliding groove (203) is formed in the inside of the sliding sleeve (202), a motorized telescopic rod (201) is fixedly connected in the inside of the first sliding groove (203), one end of the motorized telescopic rod (201) away from the first sliding groove (203) is fixedly connected with one end of the connecting column (1), an adjusting rod (204) is hinged to the outer surface of the sliding sleeve (202), an expansion plate (205) is hinged to one end of the adjusting rod (204) away from the sliding sleeve (202), and an inflatable air bag (206) is fixedly connected to the outer surface of the expansion plate (205).

2. A sectionalized pipe local repair air bag with intelligent pressure control mechanism according to claim 1, characterized in that: The outer surface of the connecting column (1) is fixedly connected with a first fixed plate (3), a second sliding groove (4) is formed in the inside of the first fixed plate (3), and a limiting rod (207) is in sliding connection in the inside of the second sliding groove (4).

3. A sectionalized pipe local repair air bag with intelligent pressure control mechanism according to claim 2, characterized in that: One side of the expansion plate (205) is fixedly connected with one end of the limiting rod (207), the other end of the connecting column (1) is fixedly connected with a second fixed plate (5), and one side of the second fixed plate (5) is fixedly connected with a connecting rod (6).

4. A sectionalized pipe local repair air bag with intelligent pressure control mechanism according to claim 3, characterized in that: One side of the second fixed plate (5) is hinged with an expansion frame (7), one end of the expansion frame (7) away from the second fixed plate (5) is hinged with a sliding block (8), and one side of the sliding block (8) is fixedly connected with a spring (9).

5. A sectionalized pipe local repair air bag with intelligent pressure control mechanism according to claim 4, characterized in that: One end of the spring (9) away from the sliding block (8) is fixedly connected with one side of the second fixed plate (5), the outer surface of the connecting rod (6) is sleeved with the inside of the spring (9), and the inside of the connecting rod (6) is fixedly connected with an air pump (12).

6. A sectionalized pipe local repair air bag with intelligent pressure control mechanism according to claim 5, characterized in that: The outlet of the air pump (12) is fixedly communicated with an inflation pipe (11), the inflation pipe (11) penetrates through and is fixedly connected with the connecting rod (6) and the first fixed plate (3).

7. A sectionalized pipe local repair air bag with intelligent pressure control mechanism according to claim 6, characterized in that: The outlet of the inflation pipe (11) is fixedly communicated with the inlet of the inflatable air bag (206), and the outer surface of the connecting rod (6) is threadedly connected with a knob (10).

8. The sectionalized pipe local repair air bag with intelligent pressure control mechanism according to claim 3, characterized in that: The outer surface of the connecting rod (6) is in sliding connection with the inside of the sliding block (8), and the outer surface of the expansion frame (7) is slidingly connected with a pipeline body (13).

Citation Information

Patent Citations

  • Non-excavation airbag type pipeline repairing device

    CN204226951U