Plugging device for repairing construction of damaged joint of sewage pipeline

By using the locking mechanism of the column slide groove and the airbag inflation fixing component, the problems of cumbersome installation and disassembly of sewage pipe sealing devices and loose sealing plates are solved, achieving a highly efficient and stable sealing effect.

CN224174778UActive Publication Date: 2026-04-28GUANGDONG HENGLIJI CONSTR ENG CO LTD
View PDF 0 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
GUANGDONG HENGLIJI CONSTR ENG CO LTD
Filing Date
2025-05-08
Publication Date
2026-04-28

AI Technical Summary

Technical Problem

Existing sewage pipe sealing devices are cumbersome to install and dismantle, and the sealing plates are prone to loosening, affecting construction efficiency and sealing effect.

Method used

The system employs a locking mechanism with a sliding groove and an airbag inflation fixing assembly. The locking pin slides and engages in the groove, and the airbag, after inflation, adheres tightly to the inner wall of the pipe. A cylinder drives the fixing rod to move the connecting plate and rubber pad to achieve a tight fit.

Benefits of technology

It improves the efficiency and stability of sealing plate installation and disassembly, ensures effective sealing of sewage pipes, and enhances construction efficiency and sealing effect.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN224174778U_ABST
    Figure CN224174778U_ABST
Patent Text Reader

Abstract

The utility model relates to the technical field of pipeline repair, and discloses a plugging device for sewage pipeline disease connector repair construction, which comprises a pipeline body, the outside of the pipeline body is rotatably connected with a sealing plate, the outside of the pipeline body is provided with a connecting assembly, and the middle part of the sealing plate is provided with a fixing assembly; the connecting assembly comprises a clamping column, the clamping column is fixedly connected to the middle of the sealing plate, a sliding groove is formed in the middle of the pipeline body, a clamping groove is formed in the sliding groove, the clamping column is slidably connected to the middle of the sliding groove, the clamping groove is connected with the clamping column in a clamped mode, and the connecting assembly further comprises a spring rod. The spring rod is fixedly connected to the middle of the sliding groove. According to the sealing device, the clamping columns slide in the sliding grooves and are clamped with the clamping grooves, so that the sealing plate is mounted and dismounted, the sealing plate can effectively play a role in blocking, the reliability and the stability of the device are improved, and the construction efficiency is improved.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This utility model relates to the field of pipeline repair technology, and in particular to a sealing device for repairing damaged interfaces in sewage pipelines. Background Technology

[0002] In the field of municipal engineering construction and maintenance, sewage pipes are an important component of the urban underground drainage system, and their normal operation is crucial to urban environmental sanitation and the quality of life of residents. When sewage pipe joints are damaged, repair work is required. During this process, in order to prevent sewage leakage and ensure the smooth progress of construction, it is often necessary to use a special sealing device to temporarily seal the pipes.

[0003] Existing sewage pipe sealing devices involve cumbersome installation and disassembly of the sealing plate, relying heavily on bolts, clips, and other connectors for fixation. This not only involves complex procedures but also consumes a significant amount of time, impacting construction efficiency. Furthermore, during long-term use, the sealing plate is prone to loosening, leading to seal failure and compromising effective sealing of the sewage pipe. Therefore, a sealing device for repairing damaged interfaces in sewage pipes is proposed to address these issues. Utility Model Content

[0004] To overcome the above shortcomings, this utility model provides a sealing device for repairing damaged interfaces in sewage pipes, aiming to improve the cumbersome installation and disassembly process in the existing technology.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A sealing device for repairing damaged interfaces of sewage pipes includes a pipe body, a sealing plate rotatably connected to the outside of the pipe body, a connecting component installed on the outside of the pipe body, and a fixing component installed in the middle of the sealing plate.

[0007] The connecting assembly includes a locking pin, which is fixedly connected to the middle of the sealing plate. A sliding groove is provided in the middle of the pipe body, and a locking groove is provided inside the sliding groove. The locking pin is slidably connected to the middle of the sliding groove, and the locking groove engages with the locking pin.

[0008] As a further description of the above technical solution:

[0009] The connecting assembly also includes a spring rod, which is fixedly connected to the middle of the slide groove, and an inclined block is fixedly connected to the end of the spring rod, the inclined block being in contact with the surface of the locking post;

[0010] As a further description of the above technical solution:

[0011] The fixing component includes a cylinder, which is fixedly connected to the middle of the sealing plate. A fixing rod is fixedly connected to the output end of the cylinder. A connecting rod is rotatably connected to the outside of the fixing rod, and a connecting plate is rotatably connected to the outside of the connecting rod.

[0012] As a further description of the above technical solution:

[0013] The sealing plate is fixedly connected to a fixing plate inside, and the rubber pad is slidably connected to the middle of the fixing plate;

[0014] As a further description of the above technical solution:

[0015] An air bladder is fixedly connected to the end of the fixing rod, and an air tube is fixedly connected to the middle of the air bladder.

[0016] As a further description of the above technical solution:

[0017] The sealing plate is fixedly connected to a connection port in the middle, and the air pipe is fixedly connected to the middle of the connection port;

[0018] As a further description of the above technical solution:

[0019] The connecting plate is externally fixed with a rubber pad.

[0020] This utility model has the following beneficial effects:

[0021] 1. In this utility model, the sealing plate is installed and removed by sliding the locking column in the groove and engaging with the groove, thereby enabling the sealing plate to effectively perform its sealing function, improving the reliability and stability of the device, and increasing construction efficiency.

[0022] 2. In this utility model, the airbag seals the pipe body after inflation, and the cylinder drives the fixing rod, which in turn moves the connecting rod and the connecting plate, so that the rubber pad fits tightly against the inner wall of the pipe, thus fixing the airbag and further enhancing the fixing effect between the sealing plate and the pipe body. Attached Figure Description

[0023] Figure 1 A three-dimensional schematic diagram of the sealing device for repairing defective interfaces in sewage pipes proposed in this utility model;

[0024] Figure 2 This is a schematic diagram of the locking post structure of the sealing device for repairing damaged interfaces of sewage pipes proposed in this utility model;

[0025] Figure 3 This is a schematic diagram of the airbag structure of the sealing device for repairing defective interfaces in sewage pipelines proposed in this utility model.

[0026] Legend:

[0027] 1. Pipe body; 2. Sealing plate; 3. Connection port; 4. Cylinder; 5. Slide groove; 6. Spring rod; 7. Inclined block; 8. Slot; 9. Locking post; 10. Airbag; 11. Air tube; 12. Connecting rod; 13. Rubber pad; 14. Fixing plate; 15. Connecting plate; 16. Fixing rod. Detailed Implementation

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0029] Reference Figure 1 - Figure 3 This utility model provides an embodiment of a sealing device for repairing damaged interfaces in sewage pipes. The device includes a pipe body 1, a sealing plate 2 rotatably connected to the outside of the pipe body 1, a connecting assembly installed on the outside of the pipe body 1, and a fixing assembly installed in the middle of the sealing plate 2. The connecting assembly includes a locking post 9, which is fixedly connected to the middle of the sealing plate 2. A groove 5 is provided in the middle of the pipe body 1, and a locking groove 8 is provided inside the groove 5. The locking post 9 is slidably connected to the middle of the groove 5, and the locking groove 8 engages with the locking post 9. Construction personnel only need to align the locking post 9 with the groove 5 and slide it to quickly engage the locking groove 8 within the groove 5, avoiding blind installation and deviations, improving installation efficiency, and ensuring the relative position between the sealing plate 2 and the water pipe is fixed. The connecting assembly also includes a spring rod 6, which is fixedly connected to the middle of the slide groove 5. An inclined block 7 is fixedly connected to the end of the spring rod 6, and the inclined block 7 contacts the surface of the locking post 9. After the locking post 9 is engaged in the locking groove 8, the inclined block 7 further enhances the connection stability between the locking post 9 and the locking groove 8, preventing the locking post 9 from accidentally disengaging from the locking groove 8 due to external forces such as water flow impact and vibration within the sewage pipe, ensuring a tight connection between the sealing plate 2 and the water pipe. A fixing plate 14 is fixedly connected inside the sealing plate 2, and a rubber pad 13 is slidably connected to the middle of the fixing plate 14.

[0030] Reference Figure 1 and Figure 3The fixing assembly includes a cylinder 4, which is fixedly connected to the middle of the sealing plate 2. A fixing rod 16 is fixedly connected to the output end of the cylinder 4. A connecting rod 12 is rotatably connected to the outside of the fixing rod 16, and a connecting plate 15 is rotatably connected to the outside of the connecting rod 12. An air bladder 10 is fixedly connected to the end of the fixing rod 16, and an air tube 11 is fixedly connected to the middle of the air bladder 10. A connection port 3 is fixedly connected to the middle of the sealing plate 2, and the air tube 11 is fixedly connected to the middle of the connection port 3. When air is inflated into the air tube 11 through the connection port 3, the air bladder 10 expands, further increasing the pressure on the inner wall of the pipe body 1, thereby improving the sealing effect and ensuring that the sealing device can still maintain good sealing performance even when the water pressure in the sewage pipe is high or there is vibration. A rubber pad 13 is fixedly connected to the outside of the connecting plate 15. The cylinder 4 pushes the spring rod 6 to move, so that the connecting rod 12 drives the connecting plate and the rubber pad 13 to move towards the inner wall of the pipe body 1, so that the rubber pad 13 can fit tightly against the airbag 10, thereby achieving the effect of sealing and fixing.

[0031] Working principle: When sealing is required, the locking post 9 fixedly connected to the sealing plate 2 is aligned with the groove 5 opened in the middle of the pipe body 1. Then, the locking post 9 is slid along the groove 5. When the locking post 9 slides to the position of the groove 8, it will engage with the groove 8. This engagement ensures that the sealing plate 2 is accurately installed in the predetermined position of the pipe body 1, ensuring that the relative position between the sealing plate 2 and the pipe body 1 is fixed, thus preparing for subsequent sealing work. After the locking post 9 enters the groove 8, the spring rod 6 drives the inclined block 7 to squeeze the locking post 9, generating a certain pressure, which makes the locking post 9 stably fixed inside the groove 8.

[0032] The cylinder 4 pushes the fixed rod 16 to move, which in turn causes the connecting rod 12 to move the 15 towards the inner wall of the pipe body 1. The fixed plate 14 serves to support and guide the rubber pad 13, enabling the rubber pad 13 to better achieve its sealing function and prevent sewage leakage.

[0033] When disassembly is required, the gas inside the airbag 10 is released, causing the airbag 10 to contract. The contraction of the cylinder 4 causes the fixing rod 16 to move the connecting rod 12 and the connecting plate 15 back to their initial positions, separating the rubber pad 13 from the inner wall of the pipe body 1. Next, press the inclined block 7 at the end of the spring rod 6 to disengage the locking pin 9 from the locking groove 8. Then, slide the locking pin 9 in the opposite direction along the slide groove 5 to remove the sealing plate 2 from the pipe body 1.

[0034] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A sealing device for repairing damaged joints in sewage pipelines, comprising a pipeline body (1), characterized in that: A sealing plate (2) is rotatably connected to the outside of the pipe body (1), a connecting component is installed on the outside of the pipe body (1), and a fixing component is installed in the middle of the sealing plate (2). The connecting assembly includes a locking post (9), which is fixedly connected to the middle part of the sealing plate (2). A sliding groove (5) is provided in the middle part of the pipe body (1), and a locking groove (8) is provided inside the sliding groove (5). The locking post (9) is slidably connected to the middle part of the sliding groove (5), and the locking groove (8) is engaged with the locking post (9).

2. The sealing device for repairing defective interfaces in sewage pipelines according to claim 1, characterized in that: The connecting assembly also includes a spring rod (6), which is fixedly connected to the middle of the slide groove (5). An inclined block (7) is fixedly connected to the end of the spring rod (6), and the inclined block (7) is in contact with the surface of the locking post (9).

3. The sealing device for repairing defective interfaces in sewage pipelines according to claim 1, characterized in that: The fixing component includes a cylinder (4), which is fixedly connected to the middle of the sealing plate (2). A fixing rod (16) is fixedly connected to the output end of the cylinder (4). A connecting rod (12) is rotatably connected to the outside of the fixing rod (16), and a connecting plate (15) is rotatably connected to the outside of the connecting rod (12).

4. The sealing device for repairing defective interfaces in sewage pipelines according to claim 1, characterized in that: The sealing plate (2) is internally fixedly connected to a fixing plate (14), and a rubber pad (13) is slidably connected to the middle of the fixing plate (14).

5. The sealing device for repairing defective interfaces in sewage pipelines according to claim 3, characterized in that: An airbag (10) is fixedly connected to the end of the fixed rod (16), and an air tube (11) is fixedly connected to the middle of the airbag (10).

6. The sealing device for repairing defective interfaces in sewage pipelines according to claim 5, characterized in that: The sealing plate (2) is fixedly connected to the middle of the connection port (3), and the air pipe (11) is fixedly connected to the middle of the connection port (3).

7. The sealing device for repairing defective interfaces in sewage pipelines according to claim 3, characterized in that: The connecting plate (15) is externally fixedly connected to a rubber pad (13).