Connecting structure of pipeline repairing air bag

Abstract

The utility model relates to the technical field of pipeline repairing equipment, in particular to a connecting structure of a pipeline repairing air bag, which comprises a pipeline and a driving device mounted at the end of the pipeline. A plurality of outer clamping plates used for clamping the outer ring wall of a pipeline and a plurality of inner clamping plates used for clamping the inner ring wall of the pipeline are installed on the hollow disc, and the outer clamping plates and the inner clamping plates can move in the radius direction of the hollow disc. By arranging the outer clamping plate and the inner clamping plate which can move in the radius direction of the hollow disc, the outer clamping plate and the inner clamping plate can adapt to pipelines with different pipe diameters, and the universality of the connecting structure is improved; and meanwhile, uniform clamping of the outer clamping plate and the inner clamping plate to the pipeline can be ensured through the movement mode in the radius direction of the hollow disc, and the repairing effect is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of pipeline repair equipment, in particular to a connection structure of a pipeline repair air bag. Background Art

[0002] In the field of pipeline repair, especially when repairing pipelines of various diameters, traditional connection structures often have problems such as poor adaptability and uneven clamping. These problems not only affect the repair effect, but also increase the complexity and cost of the repair work. Therefore, how to improve the versatility and repair effect of pipeline repair equipment has become a technical problem that needs to be solved urgently.

[0003] Traditional pipeline repair airbag connection structures usually adopt fixed-size or adjustable-size designs, but these designs often cannot simultaneously meet the requirements of adaptability and uniform clamping for pipes of different diameters. Fixed-size designs can only be applied to pipes of a specific diameter. For pipes of other diameters, it is necessary to replace connection structures of different sizes, which is cumbersome and inefficient. Although the adjustable-size design can adapt to pipes of different diameters to a certain extent, it often cannot guarantee uniform clamping of the pipes, thus affecting the repair effect. In view of this, we propose a connection structure for pipeline repair airbags. Utility Model Content

[0004] In order to make up for the above deficiencies, the utility model provides a connection structure of a pipeline repair airbag.

[0005] The technical solution of the utility model is:

[0006] A connection structure of a pipeline repair airbag comprises a pipeline and a driving device installed on the end of the pipeline, the driving device comprises a hollow disk, and a plurality of outer clamping plates for clamping the outer annular wall of the pipeline and a plurality of inner clamping plates for clamping the inner annular wall of the pipeline are installed on the hollow disk, and the outer clamping plates and the inner clamping plates can both move along the radius direction of the hollow disk, and a first driving plate for driving the outer clamping plates to move and a second driving plate for driving the inner clamping plates to move are rotatably installed inside the hollow disk, and an airbag located inside the pipeline is provided on the hollow disk, and an air inlet pipe of the airbag passes through the middle of the hollow disk and is fixedly connected to the hollow disk.

[0007] As a preferred technical solution, one end of the air inlet pipe away from the airbag is connected to the air supply pipe opening of the inflation pump, and a manual valve is installed on the air inlet pipe.

[0008] As a preferred technical solution, four outer clamping plates and four inner clamping plates are provided, and a driving rod is fixedly connected to the center of one end of the hollow disk.

[0009] As a preferred technical solution, a first driving groove is provided on the first driving plate, a second driving groove is provided on the second driving plate, the driving rod on the outer clamping plate is located in the first driving groove, the driving rod on the inner clamping plate is located in the second driving groove, and a limiting groove for limiting the movement direction of the driving rod is provided on the outer wall of the hollow disk.

[0010] As a preferred technical solution, the first drive plate and the second drive plate are both annular, and gear rings are provided on the inner ring wall of the first drive plate and the outer ring wall of the second drive plate. Two driving gears respectively meshing with the two gear rings are rotatably installed inside the hollow disk, and two driving components respectively used to drive the two driving gears to rotate are installed on the outer wall of the hollow disk.

[0011] As a preferred technical solution, an anti-slip sheet is fixedly connected to the inner wall of each outer clamping plate, and a sealing ring is provided on the outer side of the inner clamping plate. The sealing ring is separately provided and made of soft rubber material.

[0012] As a preferred technical solution, the inner ring wall of the anti-slip sheet is provided with anti-slip grooves, and the inner ring wall and the outer ring wall of the sealing ring are both provided with anti-slip teeth.

[0013] As a preferred technical solution, a limit plate is fixedly installed on the circumferential outer wall of the driving rod, the limit plate is tightly fitted with the inner wall of the hollow plate, and the outer clamping plate and the inner clamping plate are both tightly fitted with the outer wall of the hollow plate.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] The utility model provides an outer clamping plate and an inner clamping plate that can move along the radius direction of the hollow disk, so that the outer clamping plate and the inner clamping plate can adapt to pipes of different diameters, thereby improving the versatility of the connection structure. At the same time, the movement along the radius direction of the hollow disk can ensure that the outer clamping plate and the inner clamping plate uniformly clamp the pipe, thereby improving the repair effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0017] Figure 2 It is a structural schematic diagram of the outer clamping plate and the inner clamping plate in the utility model;

[0018] Figure 3 It is a structural schematic diagram of the driving component in the utility model;

[0019] Figure 4 It is a structural schematic diagram of the driving device in the utility model;

[0020] Figure 5It is a structural schematic diagram of the hollow disk of the utility model.

[0021] The meaning of each number in the figure is:

[0022] 1. Pipe; 2. Air bag; 20. Intake pipe; 21. Manual valve; 3. Air pump; 30. Air supply pipe; 4. Outer clamping plate; 40. Anti-slip sheet; 5. Inner clamping plate; 50. Sealing ring; 6. Driving assembly; 60. Gear box; 61. Bevel gear; 62. Crank; 7. Driving device; 70. Hollow disk; 71. First driving plate; 710. First driving groove; 72. Second driving plate; 720. Second driving groove; 73. Gear ring; 74. Driving gear; 75. Limiting groove; 76. Driving rod; 760. Limiting disk. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] See also Figure 1-Figure 5 , the utility model provides a technical solution:

[0025] A connection structure of a pipeline repair airbag includes a pipeline 1 and a driving device 7 installed on the end of the pipeline 1, the driving device 7 includes a hollow disk 70, and a plurality of outer clamping plates 4 for clamping the outer annular wall of the pipeline 1 and a plurality of inner clamping plates 5 for clamping the inner annular wall of the pipeline 1 are installed on the hollow disk 70, the outer clamping plates 4 and the inner clamping plates 5 can move along the radial direction of the hollow disk 70, and a first driving plate 71 for driving the outer clamping plates 4 to move and a second driving plate 72 for driving the inner clamping plates 5 to move are rotatably installed inside the hollow disk 70, an airbag 2 located inside the pipeline 1 is provided on the hollow disk 70, and an air inlet pipe 20 of the airbag 2 passes through the middle of the hollow disk 70 and is fixedly connected to the hollow disk 70. By arranging the outer clamping plate 4 and the inner clamping plate 5 to be movable along the radial direction of the hollow disk 70, the outer clamping plate 4 and the inner clamping plate 5 can adapt to the pipes 1 of different diameters, thereby improving the versatility of the connection structure. At the same time, the movement along the radial direction of the hollow disk 70 can ensure that the outer clamping plate 4 and the inner clamping plate 5 uniformly clamp the pipe 1, thereby improving the repair effect.

[0026] As a preferred embodiment of the present invention, the end of the air inlet pipe 20 away from the air bag 2 is connected to the air delivery pipe 30 of the air pump 3, and a manual valve 21 is installed on the air inlet pipe 20. The air pump 3 can provide a stable inflation pressure to the air bag 2 to ensure the smooth progress of the repair work. The setting of the manual valve 21 can conveniently control the inflation speed and pressure of the air bag 2, thereby improving the flexibility and convenience of the operation.

[0027] As a preferred embodiment of the present invention, four outer clamping plates 4 and four inner clamping plates 5 are provided respectively. The design of four outer clamping plates 4 and four inner clamping plates 5 can ensure uniform clamping of the pipe 1 and improve the repair effect. A driving rod 76 is fixedly connected to the center of one end of the hollow disk 70. The setting of the driving rod 76 can conveniently connect the outer clamping plates 4 and the inner clamping plates 5 with the driving device 7 to achieve precise control.

[0028] As a preferred embodiment of the present invention, a first driving groove 710 is provided on the first driving plate 71, a second driving groove 720 is provided on the second driving plate 72, a driving rod 76 on the outer clamping plate 4 is located in the first driving groove 710, a driving rod 76 on the inner clamping plate 5 is located in the second driving groove 720, and a limiting groove 75 for limiting the movement direction of the driving rod 76 is provided on the outer wall of the hollow disk 70. By rotating the driving plate, the driving rod 76 can move in the limiting groove 75, and then the outer clamping plate 4 and the inner clamping plate 5 can move along the radial direction of the hollow disk 70.

[0029] As a preferred embodiment of the present invention, the first driving plate 71 and the second driving plate 72 are both annular, and a toothed ring 73 is provided on the inner ring wall of the first driving plate 71 and the outer ring wall of the second driving plate 72. Two driving gears 74 respectively meshing with the two toothed rings 73 are rotatably installed inside the hollow disk 70, and two driving assemblies 6 respectively used to drive the two driving gears 74 to rotate are installed on the outer wall of the hollow disk 70. When in use, the driving assembly 6 drives the driving gear 74 to rotate, and then drives the two toothed rings 73 to rotate respectively, that is, the two driving plates can be driven to rotate respectively, and then the outer clamping plate 4 and the inner clamping plate 5 can be driven to move, so as to clamp the pipe mouth of the pipeline 1, and then the present connection mechanism is connected to the pipeline 1.

[0030] It should be supplemented that the drive assembly 6 includes a gear box 60 fixed on the outer wall of the hollow disk 70, and two meshing bevel gears 61 are provided in the gear box 60, and one of the bevel gears 61 is coaxially fixed with the driving gear 74, and a crank 62 for driving the other bevel gear 61 to rotate is installed on the outer wall of the gear box 60.

[0031] As a preferred embodiment of the present invention, an anti-slip sheet 40 is fixedly connected to the inner wall of each outer clamping plate 4, and a sealing ring 50 is provided on the outer side of the inner clamping plate 5. The sealing ring 50 is separately provided and made of soft rubber material. The design of the anti-slip sheet 40 increases the friction between the outer clamping plate 4 and the pipe 1, and improves the firmness and stability of the clamping. The provision of the sealing ring 50 ensures the sealing between the inner clamping plate 5 and the pipe 1, prevents leakage of the medium, and enhances the repair effect.

[0032] As a preferred embodiment of the present invention, the inner ring wall of the anti-skid sheet 40 is provided with anti-skid patterns, and the inner ring wall and the outer ring wall of the sealing ring 50 are both provided with anti-skid teeth. The design of the anti-skid patterns and anti-skid teeth further enhances the friction between the anti-skid sheet 40 and the sealing ring 50 and the pipeline 1, thereby improving the anti-skid effect and sealing performance.

[0033] As a preferred embodiment of the present invention, a limiting plate 760 is fixedly mounted on the outer circumferential wall of the driving rod 76, and the limiting plate 760 is closely fitted with the inner wall of the hollow plate 70, and the outer clamping plate 4 and the inner clamping plate 5 are closely fitted with the outer wall of the hollow plate 70. The limiting plate 760 is provided to increase the stability of the outer clamping plate 4 and the inner clamping plate 5.

[0034] When the connection structure of the pipeline repair airbag of the utility model is used, first, the connection structure is placed at the pipe mouth of the pipeline 1 to be repaired, so that the airbag 2 is located inside the pipeline 1, and the outer clamping plate 4 and the inner clamping plate 5 are respectively located at the outer ring wall and the inner ring wall of the pipeline 1.

[0035] Next, the two driving gears 74 are driven to rotate through the driving assembly 6, and the two driving gears 74 are respectively engaged with the toothed rings 73 on the first driving plate 71 and the second driving plate 72, so that the two driving plates rotate. During the rotation of the driving plates, the driving rod 76 moves along the driving grooves (the first driving groove 710 and the second driving groove 720) opened on the driving plates, and is restricted by the limit groove 75 and can only move along the radial direction of the hollow disk 70.

[0036] Since the outer clamping plate 4 and the inner clamping plate 5 are respectively fixedly connected to the driving rod 76, they will also move along the radial direction of the hollow disk 70 with the movement of the driving rod 76. In this way, the outer clamping plate 4 and the inner clamping plate 5 can adapt to pipes 1 of different diameters and achieve uniform clamping of the pipes 1.

[0037] When the outer clamping plate 4 and the inner clamping plate 5 firmly clamp the pipe opening of the pipe 1, the air pump 3 can provide a stable inflation pressure to the airbag 2. The manual valve 21 on the air inlet pipe 20 can control the inflation speed and pressure of the airbag 2 to ensure the smooth progress of the repair work.

[0038] During the inflation process of the airbag 2, the airbag 2 will gradually expand and fit tightly against the inner wall of the pipe 1. Due to the clamping effect of the outer clamping plate 4 and the inner clamping plate 5, as well as the anti-slip and sealing effects of the anti-slip sheet 40 and the sealing ring 50, it can be ensured that the airbag 2 will not deviate or leak during the inflation process.

[0039] When the airbag 2 is inflated to a suitable pressure, the inflation can be stopped and repair work can be carried out. After the repair is completed, the gas in the airbag 2 can be discharged through the manual valve 21, and then the clamping of the outer clamping plate 4 and the inner clamping plate 5 on the pipeline 1 can be released, and the connection structure can be removed from the pipeline 1.

[0040] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only preferred examples of the utility model and are not used to limit the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection of the utility model is defined by the attached claims and their equivalents.

Claims

1. A connection structure of a pipeline repair airbag, comprising a pipeline (1) and a driving device (7) installed at the end of the pipeline (1), characterized in that: The driving device (7) comprises a hollow disk (70), on which are mounted a plurality of outer clamping plates (4) for clamping the outer annular wall of the pipeline (1) and a plurality of inner clamping plates (5) for clamping the inner annular wall of the pipeline (1); both the outer clamping plates (4) and the inner clamping plates (5) can move along the radial direction of the hollow disk (70); a first driving plate (71) for driving the outer clamping plates (4) to move and a second driving plate (72) for driving the inner clamping plates (5) to move are rotatably mounted inside the hollow disk (70); an air bag (2) located inside the pipeline (1) is provided on the hollow disk (70); an air inlet pipe (20) of the air bag (2) passes through the middle of the hollow disk (70) and is fixedly connected to the hollow disk (70).

2. The connection structure of the pipeline repair airbag according to claim 1, characterized in that: One end of the air inlet pipe (20) away from the air bag (2) is connected to the pipe opening of the air supply pipe (30) of the inflation pump (3), and a manual valve (21) is installed on the air inlet pipe (20).

3. The connection structure of the pipeline repair airbag according to claim 2, characterized in that: Four of the outer clamping plates (4) and four of the inner clamping plates (5) are provided, and a driving rod (76) is fixedly connected to the center of one end of the hollow disk (70).

4. The connection structure of the pipeline repair airbag according to claim 3, characterized in that: The first driving plate (71) is provided with a first driving groove (710), the second driving plate (72) is provided with a second driving groove (720), the driving rod (76) on the outer clamping plate (4) is located in the first driving groove (710), the driving rod (76) on the inner clamping plate (5) is located in the second driving groove (720), and the outer wall of the hollow disk (70) is provided with a limiting groove (75) for limiting the movement direction of the driving rod (76).

5. The connection structure of the pipeline repair airbag according to claim 4, characterized in that: The first drive plate (71) and the second drive plate (72) are both annular, and a gear ring (73) is provided on the inner ring wall of the first drive plate (71) and the outer ring wall of the second drive plate (72). Two driving gears (74) respectively meshing with the two gear rings (73) are rotatably mounted inside the hollow disk (70), and two driving assemblies (6) respectively used for driving the two driving gears (74) to rotate are mounted on the outer wall of the hollow disk (70).

6. The connection structure of the pipeline repair airbag according to claim 5, characterized in that: An anti-slip sheet (40) is fixedly connected to the inner wall of each outer clamping plate (4), and a sealing ring (50) is provided on the outer side of the inner clamping plate (5). The sealing ring (50) is separately provided and made of soft rubber material.

7. The connection structure of the pipeline repair airbag according to claim 6, characterized in that: The inner ring wall of the anti-slip sheet (40) is provided with anti-slip grooves, and the inner ring wall and the outer ring wall of the sealing ring (50) are both provided with anti-slip teeth.

8. The connection structure of the pipeline repair airbag according to claim 7, characterized in that: A limiting plate (760) is fixedly mounted on the circumferential outer wall of the driving rod (76), and the limiting plate (760) is tightly fitted with the inner wall of the hollow plate (70). Both the outer clamping plate (4) and the inner clamping plate (5) are tightly fitted with the outer wall of the hollow plate (70).

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