A repair and emergency device for lined repair pipes

By designing a repair and emergency device with an inner-lined repair pipe, the leak location can be quickly sealed using an arc-shaped plate and a sealing airbag structure, solving the problem of low pipeline repair efficiency and achieving a highly efficient and stable sealing effect.

CN224454128UActive Publication Date: 2026-07-03ANHUI YITONG PLASTIC IND CO LTD
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Patent Information

Application Number
CN202521558053.5
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-07-24
Publication Date
2026-07-03
Estimated Expiration
2035-07-24

AI Technical Summary

Technical Problem

Existing technologies require disassembling damaged sections during pipeline repairs, resulting in low repair efficiency.

Method used

A repair and emergency device for lined repair tubes was designed. It adopts a first arc plate and a second arc plate structure, combined with a sealing airbag and fixing components. The sealing airbag is inflated and fits the leak location by an inflation device, and the stability is ensured by fixing bolts and threaded rods.

Benefits of technology

It enables rapid sealing of leak locations, improves maintenance efficiency, ensures the stability and sealing effect of the seal, and prevents gas leakage.

✦ Generated by Eureka AI based on patent content.

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Patent Text Reader

Abstract

This utility model relates to the field of pipeline maintenance technology and discloses a repair and emergency device for an internally lined repair pipe. The device includes a pipeline with a first arc-shaped plate on its exterior. A second arc-shaped plate is hinged to the top of the first arc-shaped plate. A limiting groove is formed on the inner wall of the second arc-shaped plate, and a sealing component is disposed inside the limiting groove. A fixing bolt is threaded to the left end of the second arc-shaped plate. A fixing component is disposed between the first and second arc-shaped plates. The sealing component includes a sealing airbag, and an air inlet pipe is connected to the inner wall of the sealing airbag. This utility model connects and fixes the first and second arc-shaped plates with the fixing bolt and connects the connector to an external inflation device. The inflation device introduces gas into the sealing airbag through the air inlet pipe, causing the sealing airbag to inflate and completely fit the leak location. This allows for rapid sealing of the leak, improving maintenance efficiency, and the structure is simple and practical.
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Description

Technical Field

[0001] This utility model relates to the field of pipeline maintenance technology, and in particular to a maintenance and emergency repair device for an inner-lined repair pipe. Background Technology

[0002] The inner lining repair pipe is a type of inner lining pipe used for trenchless repair of damaged pipelines. It consists of an outer layer, a reinforcement layer, and an inner layer. The outer layer has a water-swellable layer on the outside, which expands upon contact with water to fill the gaps and form a sealed isolation layer, allowing the inner lining pipe to fit tightly against the original pipeline. The outer layer is made of high-density polyvinyl chloride, and the reinforcement layer consists of a resin layer, a fiberglass fabric layer, and a fiberglass felt layer. The inner side has a light-transmitting layer. It is suitable for the repair of urban underground rainwater and sewage pipelines, effectively preventing the mutual penetration of groundwater and sewage in the pipeline and ensuring the repair effect.

[0003] When repairing pipelines, it is usually necessary to first disassemble the damaged part of the pipeline and then seal the internal leak point. However, the process of disassembling and assembling the pipeline takes a lot of time, which reduces the efficiency of repair. Therefore, we propose a repair and emergency device with an inner-lined repair pipe. Utility Model Content

[0004] To solve the above-mentioned technical problems, this utility model provides a repair and emergency device for an inner lining repair pipe.

[0005] This utility model is achieved using the following technical solution: a repair and emergency device for an inner-lined repair pipe, comprising a pipe, a first arc-shaped plate being provided on the outside of the pipe, a second arc-shaped plate being hinged to the top of the first arc-shaped plate, a limiting groove being provided on the inner wall of the second arc-shaped plate, a sealing component being provided inside the limiting groove, a fixing bolt being threaded to the left end of the second arc-shaped plate, and a fixing component being provided between the first arc-shaped plate and the second arc-shaped plate;

[0006] The sealing assembly includes a sealing airbag, the inner wall of which is connected to an air inlet pipe, and a connector is fixedly connected to the end of the air inlet pipe away from the sealing airbag, and a sealing cap is threaded onto the surface of the connector.

[0007] With the above technical solution, during maintenance, the connector is connected to an external inflation device. The inflation device introduces gas into the interior of the sealing airbag through the air inlet pipe, causing the sealing airbag to expand and completely fit the leak location. This can quickly seal the leak location and improve maintenance efficiency. After inflation, the sealing cap is threadedly connected to the connector to seal the air inlet pipe, preventing gas leakage from the inside of the sealing airbag and ensuring long-term sealing.

[0008] As a further improvement to the above solution, the inner wall of the sealing airbag is in contact with the surface of the pipe.

[0009] As a further improvement to the above solution, the lower end of the fixing bolt passes through the second arc-shaped plate and is threadedly connected to the inner wall of the first arc-shaped plate.

[0010] The first and second arc-shaped plates are installed and fixed using the above technical solution and fixing bolts.

[0011] As a further improvement to the above solution, the fixing component includes a fixing plate, an extension plate is fixedly connected to the bottom of the fixing plate, the inner wall of the extension plate is provided with a plurality of equally spaced through holes, a limit plate is provided at the lower end of the fixing plate, the inner wall of the limit plate is provided with a through groove, and a threaded rod is provided inside the through hole.

[0012] With the above technical solution, when the first arc plate and the second arc plate are fixed, the extension plate will enter the interior of the through groove, and the threaded rod will pass through the through hole and be threadedly connected to the inner wall of the first arc plate, which will fix and limit the first arc plate and the second arc plate, prevent loosening after long-term use, and ensure stability during use.

[0013] As a further improvement to the above solution, the top of the fixed plate is fixedly connected to the bottom of the second arc-shaped plate, and the extension plate passes through the limiting plate through a through groove.

[0014] With the above technical solution, since the fixed plate is fixedly connected to the second arc plate, the fixed plate will rotate when the first arc plate rotates, and the diameter of the through groove is larger than that of the limiting plate, so as to prevent the limiting plate from being unable to be inserted into the through groove.

[0015] As a further improvement to the above solution, the bottom of the limiting plate is fixedly connected to the top of the first arc-shaped plate.

[0016] As a further improvement to the above solution, the right end of the threaded rod passes through the extension plate via a through hole and is threadedly connected to the inner wall of the first arc-shaped plate.

[0017] With the above technical solution, since multiple through holes are provided, it is convenient to adjust the position of the threaded rod in a timely manner according to the position of the threaded hole in the second arc plate.

[0018] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0019] This utility model, by setting a first arc plate, a second arc plate, and a sealing component, specifically by connecting and fixing the first arc plate and the second arc plate with fixing bolts, connects the connector to an external inflation device, and the inflation device introduces gas into the interior of the sealing airbag through the air inlet pipe, causing the sealing airbag to expand and completely fit the leak location, which can quickly seal the leak location, improve maintenance efficiency, and has a simple and practical structure.

[0020] This utility model uses a fixing component. Specifically, when the first arc-shaped plate and the second arc-shaped plate are connected, the extension plate enters the interior of the through groove. At this time, the threaded rod passes through the through hole and is threadedly connected to the inner wall of the first arc-shaped plate, further fixing the first arc-shaped plate and the second arc-shaped plate to prevent loosening and ensure stability during use. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0022] Figure 2 This is a schematic diagram of the exploded structure of this utility model;

[0023] Figure 3 This utility model Figure 2 Enlarged structural diagram of section A in the middle;

[0024] Figure 4 This is a side view of the structure of this utility model;

[0025] Figure 5 This utility model Figure 4 Enlarged structural diagram of section B.

[0026] Explanation of key symbols:

[0027] 1. Pipeline; 2. First arc plate; 3. Second arc plate; 4. Limiting groove; 5. Sealing assembly; 501. Sealing airbag; 502. Air inlet pipe; 503. Connector; 504. Sealing cap; 6. Fixing bolt; 7. Fixing assembly; 701. Fixing plate; 702. Extension plate; 703. Through hole; 704. Limiting plate; 705. Through groove; 706. Threaded rod. Detailed Implementation

[0028] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. It should be noted that, without conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.

[0029] Example:

[0030] Please combine Figure 1-5 The present embodiment of a repair and emergency device for an inner lining repair pipe includes a pipe 1, a first arc plate 2 is provided on the outside of the pipe 1, a second arc plate 3 is hinged to the top of the first arc plate 2, a limit groove 4 is provided on the inner wall of the second arc plate 3, a sealing component 5 is provided inside the limit groove 4, a fixing bolt 6 is threaded to the left end of the second arc plate 3, and a fixing component 7 is provided between the first arc plate 2 and the second arc plate 3.

[0031] The sealing assembly 5 includes a sealing airbag 501. An air inlet pipe 502 is connected to the inner wall of the sealing airbag 501. A connector 503 is fixedly connected to one end of the air inlet pipe 502 away from the sealing airbag 501. A sealing cap 504 is threaded onto the surface of the connector 503. The sealing airbag 501 is placed in the maintenance position, and then the first arc plate 2 and the second arc plate 3 are connected and fixed by the fixing bolts 6. The connector 503 is connected to an external inflation device. The inflation device introduces gas into the interior of the sealing airbag 501 through the air inlet pipe 502, causing the sealing airbag 501 to expand and completely fit the leak position. This can quickly seal the leak position, improve maintenance efficiency, and has a simple and practical structure. The limiting groove 4 limits the sealing airbag 501 and prevents it from shifting after expansion.

[0032] The inner wall of the sealing airbag 501 is in contact with the surface of the pipe 1.

[0033] The lower end of the fixing bolt 6 passes through the second arc-shaped plate 3 and is threadedly connected to the inner wall of the first arc-shaped plate 2.

[0034] The fixing component 7 includes a fixing plate 701, with an extension plate 702 fixedly connected to the bottom of the fixing plate 701. The inner wall of the extension plate 702 has multiple equally spaced through holes 703. The lower end of the fixing plate 701 is provided with a limiting plate 704, and the inner wall of the limiting plate 704 has a through groove 705. A threaded rod 706 is provided inside the through hole 703. When the first arc plate 2 and the second arc plate 3 are connected, the extension plate 702 will enter the through groove 705. At this time, the threaded rod 706 passes through the through hole 703 and is threadedly connected to the inner wall of the first arc plate 2, further fixing the first arc plate 2 and the second arc plate 3 to prevent loosening and ensure stability during use.

[0035] The top of the fixed plate 701 is fixedly connected to the bottom of the second arc-shaped plate 3, and the extension plate 702 passes through the limiting plate 704 through the through groove 705.

[0036] The bottom of the limiting plate 704 is fixedly connected to the top of the first arc-shaped plate 2.

[0037] The right end of the threaded rod 706 passes through the extension plate 702 through the through hole 703 and is threadedly connected to the inner wall of the first arc-shaped plate 2.

[0038] The implementation principle of the emergency repair device for an inner lining repair pipe in this embodiment is as follows: First, the first arc-shaped plate 2 and the second arc-shaped plate 3 are placed outside the pipe 1. Then, the sealing airbag 501 is placed at the repair position. The first arc-shaped plate 2 and the second arc-shaped plate 3 are then connected and fixed using fixing bolts 6. The connector 503 is connected to an external inflation device. The inflation device injects gas into the sealing airbag 501 through the air inlet pipe 502, causing the sealing airbag 501 to inflate and completely adhere to the leak location. This allows for rapid sealing of the leak, improving repair efficiency. Furthermore, the structure is simple and practical. The limiting groove 4 limits the sealing airbag 501, preventing it from shifting after expansion. Then, the sealing cover 504 is threadedly connected to the connector 503 to prevent gas inside the sealing airbag 501 from leaking through the air inlet pipe 502, thus ensuring a sealing effect. When the first arc plate 2 and the second arc plate 3 are connected, the extension plate 702 will enter the interior of the through groove 705. At this time, the threaded rod 706 is threaded through the through hole 703 and connected to the inner wall of the first arc plate 2, further fixing the first arc plate 2 and the second arc plate 3 to prevent loosening and ensure stability during use.

[0039] The above embodiments are merely preferred embodiments of this utility model and should not be construed as limiting the scope of protection of this utility model. Any non-substantial changes and substitutions made by those skilled in the art based on this utility model shall fall within the scope of protection claimed by this utility model.

Claims

1. A repair device for a liner repair tube, the repair device comprising: The system includes a pipe (1), a first arc plate (2) is provided on the outside of the pipe (1), a second arc plate (3) is hinged to the top of the first arc plate (2), a limiting groove (4) is provided on the inner wall of the second arc plate (3), a sealing component (5) is provided inside the limiting groove (4), a fixing bolt (6) is threaded to the left end of the second arc plate (3), and a fixing component (7) is provided between the first arc plate (2) and the second arc plate (3). The sealing assembly (5) includes a sealing airbag (501), the inner wall of which is connected to an air inlet pipe (502), and a connector (503) is fixedly connected to one end of the air inlet pipe (502) away from the sealing airbag (501), and a sealing cap (504) is threaded onto the surface of the connector (503).

2. A repair device for a liner repair tube according to claim 1, characterized in that: The inner wall of the sealing airbag (501) is in contact with the surface of the pipe (1).

3. A repair kit for repairing a liner repair tube according to claim 1, characterized in that: The lower end of the fixing bolt (6) passes through the second arc plate (3) and is threadedly connected to the inner wall of the first arc plate (2).

4. A repair kit for repairing a liner repair tube according to claim 1, characterized in that: The fixing component (7) includes a fixing plate (701), an extension plate (702) is fixedly connected to the bottom of the fixing plate (701), the inner wall of the extension plate (702) is provided with a plurality of equally spaced through holes (703), the lower end of the fixing plate (701) is provided with a limiting plate (704), the inner wall of the limiting plate (704) is provided with a through groove (705), and a threaded rod (706) is provided inside the through hole (703).

5. A repair kit for repairing a liner repair tube according to claim 4, characterized in that: The top of the fixed plate (701) is fixedly connected to the bottom of the second arc-shaped plate (3), and the extension plate (702) passes through the limiting plate (704) through the through groove (705).

6. A repair kit for repairing a liner repair tube according to claim 4, characterized in that: The bottom of the limiting plate (704) is fixedly connected to the top of the first arc-shaped plate (2).

7. A repair kit for repairing a liner repair tube according to claim 4, characterized in that: The right end of the threaded rod (706) passes through the extension plate (702) through the through hole (703) and is threadedly connected to the inner wall of the first arc plate (2).