Quick plugging air bag for underground pipeline maintenance

Abstract

The utility model discloses a quick plugging air bag for underground pipeline maintenance, which relates to the technical field of pipeline maintenance tools, and comprises an air bag, a fixing plate is arranged on the air bag, a fixing rod is fixedly connected onto the fixing plate, a clamping rod is hinged onto the fixing rod, a strip-shaped groove is formed in the fixing rod, and the clamping rod is fixedly connected with the clamping rod. And a guide groove is formed in the outer wall of the fixing rod, the guide groove communicates with the strip-shaped groove, a moving block is connected into the guide groove in an embedded mode, a connecting block is arranged on the outer wall of the moving block, and the connecting block penetrates into the guide groove and is connected with a supporting rod in a hinged mode. Through the arrangement of the clamping rod, a certain supporting effect can be provided for the air bag after the clamping rod makes contact with the inner wall of the pipeline, so that the stability and reliability of the air bag in the using process can be improved, and the possibility that the air bag becomes loose when the water pressure is large and the air bag body and the pipeline are not tightly attached is reduced; the overall practicability is high.

Description

Technical Field

[0001] This utility model relates to the technical field of pipeline maintenance tools, specifically to a quick-sealing airbag for underground pipeline maintenance. Background Technology

[0002] The sealing airbag is a rubber product made of high-molecular synthetic materials such as rubber and fiber fabric through a high-temperature vulcanization process. It comes in various specifications and shapes and is used for water conveyance, sewage discharge, sludge removal and maintenance of pipelines and culverts. It is mainly used for drainage and sewage pipeline emergency repair, water tightness test and leakage detection. It is an ideal tool for underground pipeline water conveyance and drainage and sludge treatment.

[0003] A pipeline sealing airbag, with publication number CN216520283U, is described. It includes an airbag body with a first inflation tube fixedly connected to the middle right side of the body. This invention allows a set of air pumps to inflate the supporting airbag via a first pump tube, a first connecting tube, and a first inflation tube. Air from the supporting airbag is transmitted to the strut airbag and the annular airbag assembly, forming a support structure. This allows the airbag body to be quickly inflated, creating a gap. A second pump connected to a second pump tube then rapidly inflates the airbag body via the second pump tube, a second connecting tube, and a second inflation tube. When a first pressure gauge at the first connecting tube detects that the internal pressure of the supporting airbag has reached a standard value, a first air valve can be controlled to seal the first connecting tube, thus closing the pump connected to the first pump tube and completing the internal support of the airbag body. This pipeline sealing airbag structure, connecting two sets of air pumps, effectively improves inflation efficiency.

[0004] Regarding the aforementioned technologies, the inventors believe that existing sealing airbags rely solely on the friction between the airbag and the inner wall of the pipe for fixation. However, this can easily lead to sealing failure when the water pressure inside the pipe is high or when the airbag loosens due to poor fit. Therefore, we propose a rapid sealing airbag for underground pipeline maintenance. Utility Model Content

[0005] In view of the problems existing in the current pipeline sealing airbags, this utility model is proposed.

[0006] Therefore, the purpose of this utility model is to provide a quick-sealing airbag for underground pipeline maintenance, which solves the problem that existing sealing airbags rely solely on the friction between the airbag and the inner wall of the pipeline to fix the airbag, but when the water pressure inside the pipeline is high or the airbag is not tightly fitted to the pipeline and becomes loose, the sealing will easily fail.

[0007] To achieve the above objectives, this utility model provides the following technical solution:

[0008] A quick-sealing airbag for underground pipeline maintenance includes an airbag with a fixing plate. A fixing rod is fixedly connected to the fixing plate, and a locking rod is hinged to the fixing rod. The fixing rod has a strip groove inside and a guide groove on its outer wall. The guide groove and the strip groove are interconnected. A movable block is embedded in the guide groove. A connecting block is provided on the outer wall of the movable block. The connecting block extends into the interior of the guide groove and is hinged to a support rod. The other end of the support rod is hinged to the outer wall of the locking rod. A connecting rod is provided on the outer wall of the movable block. The other end of the connecting rod extends into the exterior of the fixing rod. A spring is nested on the connecting rod and is pressed between the inner wall of the strip groove and the outer wall of the movable block.

[0009] Preferably, a pull ring is fixedly connected to one end of the connecting rod that extends to the outside of the fixed rod. The pull ring and the connecting rod are integrated into one structure, and a rubber sleeve is nested on the pull ring.

[0010] Preferably, the fixing rod is provided with multiple fixing rings, and an air supply pipe is provided through the fixing ring. One end of the air supply pipe passes through the fixing plate and communicates with the inside of the airbag, and the other end of the air supply pipe is provided with a valve.

[0011] Preferably, the airbag is provided with a plurality of annular grooves evenly distributed on it, and a sealing ring is fixedly connected to each of the plurality of annular grooves.

[0012] Furthermore, the sealing ring is a wear-resistant rubber ring.

[0013] Preferably, the end of the clamping rod away from the fixed rod is provided with a tapered head, and the tapered head and the clamping rod are integrated into one structure.

[0014] The technical effects and advantages provided by this utility model in the above technical solution are as follows:

[0015] This invention, by setting a locking rod, can automatically unfold under the action of a spring after the locking rod enters the pipe, so that the locking rod can contact the inner wall of the pipe, thereby providing a certain support for the airbag, thus improving the stability and reliability of the airbag during use, reducing the possibility of sealing failure when the water pressure is high or when the airbag body is not tightly attached to the pipe and becomes loose, and has strong overall practicality. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings.

[0017] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0018] Figure 2 This is a schematic diagram of the cross-sectional structure of the fixing rod of this utility model;

[0019] Figure 3 This is a schematic diagram of the airbag structure of this utility model.

[0020] Explanation of reference numerals in the attached figures:

[0021] 1. Airbag; 2. Fixing plate; 3. Fixing rod; 4. Clamping rod; 5. Strip groove; 6. Guide groove; 7. Moving block; 8. Connecting block; 9. Support rod; 10. Connecting rod; 11. Pull ring; 12. Spring; 13. Fixing ring; 14. Air supply pipe; 15. Valve; 16. Annular groove; 17. Sealing ring. Detailed Implementation

[0022] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.

[0023] This utility model discloses a quick-sealing airbag for underground pipeline maintenance.

[0024] This utility model provides, for example Figure 1-3 The diagram shows a quick-sealing airbag for underground pipeline maintenance, comprising an airbag 1, a fixing plate 2 on the airbag 1, a fixing rod 3 fixedly connected to the fixing plate 2, a locking rod 4 hinged to the fixing rod 3, a strip groove 5 inside the fixing rod 3, a guide groove 6 on the outer wall of the fixing rod 3, the guide groove 6 and the strip groove 5 being interconnected, a movable block 7 being embedded in the guide groove 6, a connecting block 8 on the outer wall of the movable block 7, the connecting block 8 penetrating into the interior of the guide groove 6 and hinged to a support rod 9, the other end of the support rod 9 being hinged to the outer wall of the locking rod 4, a connecting rod 10 on the outer wall of the movable block 7, the other end of the connecting rod 10 penetrating into the exterior of the fixing rod 3, a spring 12 nested on the connecting rod 10, the spring 12 being pressed between the inner wall of the strip groove 5 and the outer wall of the movable block 7.

[0025] This utility model discloses a quick-sealing airbag for underground pipeline maintenance. One end of the connecting rod 10, which extends through to the outside of the fixed rod 3, is fixedly connected to a pull ring 11. The pull ring 11 and the connecting rod 10 are integrated. A rubber sleeve is nested on the pull ring 11, which makes it easy for workers to move the moving block 7, thus improving the overall ease of use.

[0026] This utility model discloses a quick-sealing airbag for underground pipeline maintenance. The fixing rod 3 is provided with multiple fixing rings 13. An air supply pipe 14 is installed through the fixing ring 13. One end of the air supply pipe 14 passes through the fixing plate 2 and communicates with the inside of the airbag 1. The other end of the air supply pipe 14 is provided with a valve 15, which can facilitate the supply and release of air to the airbag 1.

[0027] This utility model discloses a quick-sealing airbag for underground pipeline maintenance. The airbag 1 has multiple annular grooves 16 evenly distributed on it, and each annular groove 16 is fixedly connected with a sealing ring 17, which can improve the stability of the airbag 1 in contact with the inner wall of the pipeline when it is inflated.

[0028] This utility model discloses a quick-sealing airbag for underground pipeline maintenance. The sealing ring 17 is a wear-resistant rubber ring, which can improve the wear resistance of the sealing ring 17 and thus extend its service life.

[0029] This utility model discloses a quick-sealing airbag for underground pipeline maintenance. The end of the clamping rod 4 away from the fixed rod 3 is provided with a conical head. The conical head and the clamping rod 4 are integrated into one structure, so that the clamping rod 4 can be better clamped on the inner wall of the pipeline.

[0030] In use, the airbag 1 and fixing rod 3 are inserted into the pipe. During insertion, the locking rod 4 contacts the pipe and retracts. After being inserted in place, the locking rod 4 will automatically open under the elastic action of the spring 12, so that it can contact the inner wall of the pipe to provide a limiting effect for the airbag 1. Then, the staff will supply air into the airbag 1 through the valve 15 and the air supply pipe 14 to fully open the airbag 1, thereby improving the sealing effect. After use, the staff will discharge the gas inside the airbag 1 and pull the pull ring 11 to move the moving block 7 and the connecting block 8. During the movement, the connecting block 8 can drive the locking rod 4 to retract through the action of the support rod 9, so that the entire airbag 1 can be normally removed from the inside of the pipe.

[0031] The foregoing description only illustrates certain exemplary embodiments of the present invention. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A rapid sealing airbag for underground pipeline maintenance, comprising an airbag (1), characterized in that, The airbag (1) is provided with a fixing plate (2), a fixing rod (3) is fixedly connected to the fixing plate (2), a locking rod (4) is hinged to the fixing rod (3), a strip groove (5) is provided inside the fixing rod (3), a guide groove (6) is provided on the outer wall of the fixing rod (3), the guide groove (6) and the strip groove (5) are interconnected, a moving block (7) is embedded in the guide groove (6), a connecting block (8) is provided on the outer wall of the moving block (7), the connecting block (8) penetrates into the interior of the guide groove (6) and is hinged to a support rod (9), the other end of the support rod (9) is hinged to the outer wall of the locking rod (4), a connecting rod (10) is provided on the outer wall of the moving block (7), the other end of the connecting rod (10) penetrates into the outside of the fixing rod (3), a spring (12) is nested on the connecting rod (10), and the spring (12) is pressed between the inner wall of the strip groove (5) and the outer wall of the moving block (7).

2. The rapid sealing airbag for underground pipeline maintenance according to claim 1, characterized in that, The connecting rod (10) extends through the outside of the fixed rod (3) and is fixedly connected to a pull ring (11). The pull ring (11) and the connecting rod (10) are integrated. A rubber sleeve is nested on the pull ring (11).

3. The rapid sealing airbag for underground pipeline maintenance according to claim 1, characterized in that, The fixing rod (3) is provided with multiple fixing rings (13), and an air supply pipe (14) is provided through the fixing ring (13). One end of the air supply pipe (14) passes through the fixing plate (2) and communicates with the inside of the airbag (1). The other end of the air supply pipe (14) is provided with a valve (15).

4. The rapid sealing airbag for underground pipeline maintenance according to claim 1, characterized in that, The airbag (1) is provided with a plurality of annular grooves (16) evenly distributed, and a sealing ring (17) is fixedly connected in each of the plurality of annular grooves (16).

5. The rapid sealing airbag for underground pipeline maintenance according to claim 4, characterized in that, The sealing ring (17) is a wear-resistant rubber ring.

6. The rapid sealing airbag for underground pipeline maintenance according to claim 1, characterized in that, The end of the clamp (4) away from the fixed rod (3) is provided with a tapered head, and the tapered head and the clamp (4) are integrated into one structure.

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