Air bag for pipeline repair

Abstract

The utility model relates to the technical field of pipeline repairing, in particular to a pipeline repairing air bag which comprises an air bag device body for pipeline repairing, an air bag body and an annular fixing plate, and the air bag body and the annular fixing plate are arranged on the air bag device body for pipeline repairing. The right side face of the air bag is fixedly connected with a limiting ring with one end extending into the limiting groove, the interior of the limiting groove is fixedly connected with two limiting rods, the right side face of the limiting ring is provided with two limiting holes, and the two limiting rods extend into the two limiting holes correspondingly. According to the air bag for pipeline repair, through clearance fit between a limiting rod and a limiting hole, the air bag is conveniently limited, an operator can conveniently install the air bag, through attachment between a rubber ring and a limiting groove, the limiting ring is supported, the stability of the air bag is improved, and meanwhile, through clearance fit between a fixing rod and a fixing hole, the air bag can be conveniently fixed. And the air bag is fixed, so that a worker can operate conveniently.

Description

Technical Field

[0001] The present application relates to the technical field of pipeline repair, and specifically to an airbag for pipeline repair. Background Art

[0002] Pipeline repair refers to the use of various technologies to restore damaged and leaking pipelines to their normal function. The repair includes two technologies: external anti-corrosion layer repair and internal repair. When a pipeline is partially damaged, a pipeline repair technology, namely lining repair technology, is often used. The method is to stick high-strength glass fiber cloth coated with special glue or other composite materials to the damaged area. After solidification, the damaged area can be covered and repaired, so that the pipeline can be restored to operation, greatly extending the life of the pipeline.

[0003] Chinese patent CN219102376U discloses a pipeline repair airbag. The patent discloses a technical solution for protecting the airbag, which solves the problem of the existing use of gas-filled airbags to complete the repair of damaged pipelines. However, the aging of the airbags, exposed steel bars in the pipeline, and sharp objects such as construction waste can scratch the airbags, resulting in the risk of the airbags bursting.

[0004] In the process of implementing this application, the inventors found that there are at least the following problems in this technology. When the device is in use, the airbag is protected by a protective cover, and the airbag is moved by an annular fixing plate. The annular fixing plate and the airbag are fixedly connected. However, when the airbag is damaged, it is inconvenient for the operator to disassemble, assemble and replace the airbag. Therefore, an airbag for pipeline repair is proposed to solve the above problems. Utility Model Content

[0005] In response to the shortcomings of the existing technology, the utility model provides an airbag for pipeline repair, which has the advantage of convenient replacement. It solves the problem that when the device is in use, the airbag is protected by a protective cover, the airbag is driven to move by an annular fixing plate, and the annular fixing plate and the airbag are fixedly connected, but when the airbag is damaged, it is inconvenient for the operator to disassemble and replace the airbag.

[0006] To achieve the above-mentioned purpose of convenient replacement, the present application provides the following technical solution: an airbag for pipeline repair, comprising a pipeline repair airbag device body, an airbag and an annular fixing plate arranged on the pipeline repair airbag device body, wherein a limiting groove is provided on the left side of the annular fixing plate;

[0007] The right side of the airbag is fixedly connected to a limiting ring with one end extending into the limiting groove, the limiting groove is fixedly connected to the inside of two limiting rods, the right side of the limiting ring is provided with two limiting holes, the two limiting rods extend into the inside of the two limiting holes respectively, the outer peripheral wall of the limiting ring is fixedly connected to a rubber ring, and the left side of the annular fixing plate is provided with two placement grooves;

[0008] A fixing assembly is provided inside the two placement grooves for fixing the limiting ring, and a supporting assembly is provided inside the annular fixing plate for supporting the fixing assembly.

[0009] This application fixes the limit ring through the action of the fixing component, which is convenient for the staff to operate. At the same time, the fixing component is supported by the support component to improve the stability of the fixing component.

[0010] Furthermore, the limiting groove is an annular groove, the rubber ring and the limiting groove are tightly fitted, and the two placement grooves are both connected to the limiting groove.

[0011] The beneficial effect of adopting the above further solution is that the limiting ring is supported by the fit between the rubber ring and the limiting groove, thereby improving the stability of the limiting ring.

[0012] Furthermore, the two placement slots are both located inside the limiting slot, and the two limiting rods are respectively clearance-matched with the two limiting holes.

[0013] The beneficial effect of adopting the above further solution is: the limiting ring is restricted by the clearance fit between the limiting rod and the limiting hole, making it easier for workers to install the limiting ring.

[0014] Furthermore, the fixing assembly includes a telescopic rod, which is fixedly connected to the inside of the placement slot, and a side of the telescopic rod close to the limiting ring is fixedly connected to a support plate, and the outer peripheral wall of the telescopic rod is provided with springs fixedly connected to the placement slot and the support plate respectively, and a side of the support plate away from the telescopic rod is fixedly connected to a fixing rod, and the top and bottom surfaces of the limiting ring are provided with fixing holes, and the fixing rod extends to the inside of the fixing hole.

[0015] The beneficial effect of adopting the above further solution is that the fixing rod is supported by the action of the spring, thereby improving the stability of the fixing rod.

[0016] Furthermore, the fixing rod and the fixing hole are clearance-matched, and the support plate and the limiting ring are in close contact.

[0017] The beneficial effect of adopting the above further solution is that the limiting ring is fixed by the clearance fit between the fixing rod and the fixing hole, which makes it convenient for the staff to operate.

[0018] Furthermore, the support assembly includes two limit plates, and the two limit plates are respectively fixedly connected to the right side surfaces of the two support plates. Two sliding grooves are opened inside the annular fixed plate, and the two limit plates extend to the inside of the two sliding grooves respectively. The left sides of the two support plates are fixedly connected to a pull plate with one end extending to the left side of the placement slot.

[0019] The beneficial effect of adopting the above further solution is that the support plate is driven to move under the action of the pulling plate, which makes it convenient for the staff to operate.

[0020] Furthermore, the two limiting plates are respectively slidably connected to the two sliding grooves, and the two limiting plates are both Z-shaped plates.

[0021] The beneficial effect of adopting the above further solution is that the support plate is supported by the sliding connection between the limit plate and the slide groove, thereby improving the stability of the support plate.

[0022] Furthermore, the two pulling plates are both L-shaped plates, and the spring is located between the pulling plate and the limiting plate.

[0023] The beneficial effect of adopting the above further solution is that the support plate is supported by the limiting plate, thereby improving the stability of the support plate.

[0024] Compared with the existing technology, the technical solution of this application has the following beneficial effects:

[0025] The airbag for pipeline repair conveniently limits the airbag through the clearance fit between the limiting rod and the limiting hole, making it easy for operators to install the airbag. The limiting ring is supported by the fit between the rubber ring and the limiting groove, thereby improving the stability of the airbag. At the same time, the airbag is fixed through the clearance fit between the fixing rod and the fixing hole, making it convenient for operators to operate. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 This is a schematic diagram of the structure of the utility model;

[0027] Figure 2 for Figure 1 A schematic diagram of the structure of the middle part;

[0028] Figure 3 It is a schematic diagram of the left side of the annular fixing plate in the structure of the present utility model.

[0029] Description of reference numerals:

[0030] 1. Pipeline repair airbag device body; 2. Airbag; 3. Annular fixing plate; 4. Limiting groove; 5. Placement groove; 6. Limiting ring; 7. Limiting hole; 8. Limiting rod; 9. Rubber ring; 10. Fixing rod; 11. Fixing hole; 12. Support plate; 13. Pull plate; 14. Spring; 15. Telescopic rod; 16. Slide groove; 17. Limiting plate. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0032] See also Figure 1-3 In this embodiment, an airbag for pipeline repair includes a pipeline repair airbag device body 1, an airbag 2 and an annular fixing plate 3 arranged on the pipeline repair airbag device body 1, and a limiting groove 4 is provided on the left side of the annular fixing plate 3.

[0033] The right side of the airbag 2 is fixedly connected to a limiting ring 6 with one end extending to the inside of the limiting groove 4. The limiting groove 4 is an annular groove. Two limiting rods 8 are fixedly connected to the inside of the limiting groove 4. The right side of the limiting ring 6 is provided with two limiting holes 7. The two limiting rods 8 extend to the inside of the two limiting holes 7 respectively. The two limiting rods 8 are respectively fitted with the two limiting holes 7 with a gap. The outer peripheral wall of the limiting ring 6 is fixedly connected with a rubber ring 9, which fits tightly with the limiting groove 4. The left side of the annular fixing plate 3 is provided with two placement grooves 5. The two placement grooves 5 are both connected to the limiting groove 4, and the two placement grooves 5 are both located inside the limiting groove 4.

[0034] Specifically, the airbag 2 is pushed so that the limiting ring 6 is inserted into the limiting groove 4, and the limiting rod 8 is inserted into the limiting hole 7. The limiting ring 8 is restricted by the clearance fit between the limiting rod 8 and the limiting hole 7. The limiting ring 6 is supported by the fit between the rubber ring 9 and the limiting groove 4, thereby improving the stability of the limiting ring 6.

[0035] See also Figure 1-3In this embodiment, the interior of the two placement slots 5 are provided with a fixing component for fixing the limit ring 6. The fixing component includes a telescopic rod 15, which is fixedly connected to the interior of the placement slot 5. The side of the telescopic rod 15 close to the limit ring 6 is fixedly connected to a support plate 12, and the support plate 12 and the limit ring 6 fit together. The outer peripheral wall of the telescopic rod 15 is provided with a spring 14 fixedly connected to the placement slot 5 and the support plate 12 respectively. The side of the support plate 12 away from the telescopic rod 15 is fixedly connected to a fixing rod 10. The top and bottom surfaces of the limit ring 6 are provided with fixing holes 11. The fixing rod 10 extends to the inside of the fixing hole 11, and the fixing rod 10 and the fixing hole 11 are clearance-fitted.

[0036] Specifically, the support plate 12 moves, squeezing the telescopic rod 15 and the spring 14, causing the telescopic rod 15 and the spring 14 to contract, thereby driving the fixed rod 10 to move, and the fixed rod 10 and the fixing hole 11 are located on the same horizontal line. The pull plate 13 is loosened, and the elasticity of the spring 14 is used to push the support plate 12 to reset, and the fixing rod 10 is inserted into the fixing hole 11. The clearance between the fixing rod 10 and the fixing hole 11 is matched to fix the limit ring 6, and then fix the airbag 2.

[0037] See also Figure 1-3 In this embodiment, a support assembly is provided inside the annular fixing plate 3 to support the fixing assembly. The support assembly includes two limit plates 17. The two limit plates 17 are fixedly connected to the right side surfaces of the two support plates 12 respectively. Two slide grooves 16 are opened inside the annular fixing plate 3. The two limit plates 17 extend to the inside of the two slide grooves 16 respectively. The two limit plates 17 are slidably connected to the two slide grooves 16 respectively. The two limit plates 17 are both Z-shaped plates. The left sides of the two support plates 12 are fixedly connected to a pull plate 13 with one end extending to the left side of the placement slot 5. The two pull plates 13 are both L-shaped plates, and the spring 14 is located between the pull plate 13 and the limit plate 17.

[0038] Specifically, the pulling plate 13 is pulled to cause the pulling plate 13 to drive the supporting plate 12 to move, and the supporting plate 12 is supported by the sliding connection between the limiting plate 17 and the sliding groove 16, thereby improving the stability of the supporting plate 12.

[0039] The working principle of the above embodiment is:

[0040] The support plate 12 is moved by pulling the pull plate 13, and the telescopic rod 15 and the spring 14 are squeezed, so that the telescopic rod 15 and the spring 14 are contracted, thereby driving the fixing rod 10 to move. The supporting plate 12 is supported by the sliding connection between the limit plate 17 and the slide groove 16, thereby improving the stability of the support plate 12 and pushing the airbag 2, so that the limit ring 6 is inserted into the interior of the limit groove 4, and the limit rod 8 is inserted into the interior of the limit hole 7. The limit ring 8 is restricted by the clearance between the limit rod 8 and the limit hole 7. The limit ring 6 is supported by the fit between the rubber ring 9 and the limit groove 4, thereby improving the stability of the limit ring 6. At the same time, the fixing rod 10 and the fixing hole 11 are located at the same horizontal line, and the pull plate 13 is loosened. The support plate 12 is pushed back to its original position by the elasticity of the spring 14, and the fixing rod 10 is inserted into the interior of the fixing hole 11. The limit ring 6 is fixed by the clearance between the fixing rod 10 and the fixing hole 11, thereby fixing the airbag 2.

Claims

1. An airbag for pipeline repair, comprising an airbag device body (1) for pipeline repair, an airbag (2) and an annular fixing plate (3) arranged on the airbag device body (1), characterized in that: A limiting groove (4) is provided on the left side of the annular fixing plate (3); The right side of the airbag (2) is fixedly connected to a limiting ring (6) with one end extending into the interior of the limiting groove (4), the interior of the limiting groove (4) is fixedly connected to two limiting rods (8), the right side of the limiting ring (6) is provided with two limiting holes (7), the two limiting rods (8) respectively extend into the interior of the two limiting holes (7), the outer peripheral wall of the limiting ring (6) is fixedly connected to a rubber ring (9), and the left side of the annular fixing plate (3) is provided with two placement grooves (5); The interior of the two placement grooves (5) is provided with a fixing assembly for fixing the limiting ring (6), and the interior of the annular fixing plate (3) is provided with a supporting assembly for supporting the fixing assembly.

2. The pipeline repair airbag according to claim 1, characterized in that: The limiting groove (4) is an annular groove, the rubber ring (9) and the limiting groove (4) are tightly fitted, and the two placement grooves (5) are both connected to the limiting groove (4).

3. The pipeline repair airbag according to claim 2, characterized in that: The two placement slots (5) are both located inside the limiting slot (4), and the two limiting rods (8) are respectively clearance-matched with the two limiting holes (7).

4. The pipeline repair airbag according to claim 1, characterized in that: The fixing assembly includes a telescopic rod (15), the telescopic rod (15) is fixedly connected to the inside of the placement groove (5), the side of the telescopic rod (15) close to the limiting ring (6) is fixedly connected to the support plate (12), the outer peripheral wall of the telescopic rod (15) is provided with a spring (14) fixedly connected to the placement groove (5) and the support plate (12), respectively, the side of the support plate (12) away from the telescopic rod (15) is fixedly connected to the fixing rod (10), the top surface and the bottom surface of the limiting ring (6) are both provided with fixing holes (11), and the fixing rod (10) extends to the inside of the fixing hole (11).

5. The pipeline repair airbag according to claim 4, characterized in that: The fixing rod (10) and the fixing hole (11) are clearance-matched, and the support plate (12) and the limiting ring (6) are in close contact.

6. The pipeline repair airbag according to claim 4, characterized in that: The support assembly includes two limiting plates (17), the two limiting plates (17) are fixedly connected to the right side surfaces of the two support plates (12), the interior of the annular fixed plate (3) is provided with two sliding grooves (16), the two limiting plates (17) extend to the interior of the two sliding grooves (16), and the left sides of the two support plates (12) are fixedly connected to a pull plate (13) with one end extending to the left side of the placement slot (5).

7. The pipeline repair airbag according to claim 6, characterized in that: The two limiting plates (17) are respectively slidably connected to the two sliding grooves (16), and the two limiting plates (17) are both Z-shaped plates.

8. The pipeline repair airbag according to claim 7, characterized in that: The two pull plates (13) are both L-shaped plates, and the spring (14) is located between the pull plate (13) and the limiting plate (17).

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