Water stopping and repairing structure of dewatering pipeline

Abstract

The utility model discloses a water stopping and repairing structure for a precipitation pipeline, and belongs to the technical field of pipeline repairing, the water stopping and repairing structure comprises a repairing part and a water stopping part, the repairing part is a whole set of air bag expansion repairing equipment, the water stopping part comprises two water stopping and guiding mechanisms, and each water stopping and guiding mechanism comprises a drainage cylinder; an outer water-blocking air bag and an inner water-blocking air bag are fixedly arranged on the outer wall of the drainage cylinder, a plurality of water-blocking rings are fixedly arranged on the outer water-blocking air bag and the inner water-blocking air bag, an outer end opening of the drainage cylinder is connected with an end plate in a sealed mode, a drainage flange connector is arranged on the end plate, and an air supply mechanism is arranged in the drainage cylinder; the outer water-blocking air bag and the inner water-blocking air bag are inflated through the air supply mechanism to expand to block the pipeline, two water-blocking defense lines are formed in cooperation with the water-blocking rings, the more reliable water-blocking effect is achieved, meanwhile, accumulated water can be continuously pumped out and discharged into the downstream through the water drainage flange connector, and the water drainage effect is improved. Extra inspection wells and diversion pipelines are not needed.

Description

Technical Field

[0001] The present application relates to the technical field of pipeline repair, and in particular to a rainwater pipeline water-stopping repair structure. Background Art

[0002] Pipeline repair refers to the use of various technologies to restore the normal use function of damaged and leaking pipelines. The repair includes two technologies: external anti-corrosion layer repair and internal repair. After years of operation, various pipelines will inevitably suffer various damages and leaks due to corrosion, poor operation management and other reasons. However, replacing new pipelines across the line is not only a huge project, but also costly and long-term, so pipeline repair is particularly necessary. Pipeline repair structures generally include water-stopping structures and repair structures. The water-stopping structure is used to block both sides of the pipe section to be repaired, blocking the water flow through the pipe section to be repaired, and facilitating the repair work of the repair structure.

[0003] Existing pipe plugging and water-stopping structures include air bags, plugs, brickwork, etc., but no matter which water-stopping method is used, it is usually necessary to open an additional inspection well and lay a diversion pipe to guide the blocked upstream water flow into the blocked downstream water flow. The operation is relatively cumbersome, and the air bag water-stopping structure is usually a single air bag structure with poor water-stopping effect. Therefore, a precipitation pipe water-stopping repair structure is proposed to address the above problems. Utility Model Content

[0004] In response to the shortcomings of the existing technology, the present application provides a drainage pipe water-stopping repair structure, which overcomes the shortcomings of the existing technology and aims to solve the problem that during the pipeline repair process, an additional diversion structure and a single airbag structure need to be additionally set up in conjunction with the water-stopping structure, resulting in poor water-stopping effect.

[0005] To achieve the above objectives, this application provides the following technical solutions:

[0006] A rainwater pipe water-stopping and repairing structure comprises a repairing part and a water-stopping part, wherein the repairing part is a complete set of airbag expansion and repairing equipment, the water-stopping part comprises two water-stopping and water-guiding mechanisms, the water-stopping and water-guiding mechanisms comprise a drainage cylinder, an outer water-blocking airbag and an inner water-blocking airbag are fixedly provided on the outer wall of the drainage cylinder, a plurality of water-blocking rings are fixedly provided on the outer water-blocking airbag and the inner water-blocking airbag, an outer port of the drainage cylinder is sealedly connected to an end plate, a middle portion of the end plate is sealedly connected to a drainage flange interface, an air supply mechanism sealedly connected to the outer water-blocking airbag and the inner water-blocking airbag is fixedly provided in the drainage cylinder, and a remote-controlled air valve sealedly connected to the outer water-blocking airbag and the inner water-blocking airbag is provided on the outer water-blocking airbag and the inner water-blocking airbag.

[0007] By adopting the above technical scheme, when the water-stopping and water-guiding mechanism is placed in the position to be blocked as a whole, the air supply mechanism is used to inflate the outer water-blocking airbag and the inner water-blocking airbag to expand and block the pipe. At this time, the water will flow into the drain tube, and the external water pump can be connected to the drain flange interface to continuously extract water and discharge it into the drain tube of the water-stopping and water-guiding mechanism located downstream, thereby achieving the two functions of blocking and water stopping and diversion, without the need to additionally set up inspection wells and diversion pipes. In addition, the outer water-blocking airbag and the inner water-blocking airbag can each be matched with a water-blocking ring to form two water-stopping lines of defense, which has a more reliable water-stopping effect.

[0008] As a preferred technical solution of the present application, the air supply mechanism includes a main pipe and two one-way valves, wherein the one-way valve is tightly connected to the drainage cylinder and communicated with the external water-blocking airbag and the internal water-blocking airbag, the outer end of the main pipe passes through the end plate and is tightly connected thereto, and the main pipe and the one-way valve are tightly connected via a branch pipe.

[0009] By adopting the above technical solution, when high-pressure gas is rushed into the main pipe, the high-pressure gas will enter the outer water-blocking airbag and the inner water-blocking airbag through the branch pipe and the one-way valve to inflate them. At the same time, due to the presence of the one-way valve, the gas can no longer flow out of the outer water-blocking airbag and the inner water-blocking airbag, which can effectively improve the inflation efficiency.

[0010] As a preferred technical solution of the present application, the outer end of the main pipe is tightly connected with an air supply interface, and the air supply interface is tightly connected with an external air pump through a hose.

[0011] By adopting the above technical solution, high-pressure gas can be pumped into the main pipe through the gas supply interface by an external air pump.

[0012] As a preferred technical solution of the present application, the drainage flange interface includes a pipe section passing through the end plate, wherein the inner end of the pipe section is fixedly provided with a closed ring that is tightly connected to the inner wall of the end plate, and the outer end of the pipe section is fixedly provided with a connecting flange, wherein one water-stopping and water-guiding mechanism is tightly connected to the input end interface of the external drainage pump by connecting the water pipe through the drainage flange interface, and the other water-stopping and water-guiding mechanism is tightly connected to the output end interface of the external drainage pump by connecting the water pipe through the drainage flange interface.

[0013] By adopting the above technical solution, the water blocked upstream and accumulated in the drainage tube can be pumped out by the external drainage pump and transported to the blocked pipe section downstream. While not affecting the water flow transport function of the pipeline, it can ensure that there is no water flow interference in the pipe section to be repaired.

[0014] As a preferred technical solution of the present application, the inner end of the drainage tube is threadedly connected with a water guide cover, which is funnel-shaped and has a diameter at the maximum dimension of its end that is smaller than the diameter of the outer water-blocking airbag and the inner water-blocking airbag after inflation.

[0015] By adopting the above technical solution, the water guide cover can guide the water flow, allowing the water flow to flow into the drainage tube as directly as possible, thereby facilitating the efficient discharge of accumulated water.

[0016] As a preferred technical solution of the present application, the structural composition and size of the outer water-blocking airbag and the inner water-blocking airbag are completely consistent, both of which include an outer protective layer and an inner bag. The main structure of the water-blocking ring is an elastic ring body made of rubber material, and a deformation groove with a trapezoidal cross-section is provided in the elastic ring body.

[0017] By adopting the above technical scheme, the outer protective layer can protect the inner bag, thereby improving the service life of the outer water-blocking airbag and the inner water-blocking airbag as a whole. At the same time, the water-blocking ring is an elastic ring body with a deformation groove arranged inside. This structural form can make the water-blocking ring deform more obviously when under pressure, so that the water-blocking ring can have a large area of ​​close contact with the pipe wall, thereby improving the water-stopping effect.

[0018] As a preferred technical solution of the present application, a group of roller brackets are fixedly provided on the bottom outer walls of the front and rear ends of the drainage cylinder, and the roller brackets include a diagonal support rod fixedly connected to the drainage cylinder and a roller rotatably provided at the end of the diagonal support rod.

[0019] By adopting the above technical scheme, the roller bracket can support the water-stopping and water-guiding mechanism as a whole, which can greatly improve the convenience of operation when placing the water-stopping and water-guiding mechanism, facilitate the adjustment of the position of the water-stopping and water-guiding mechanism, and protect the outer water-blocking airbag and the inner water-blocking airbag when they are not inflated, thereby avoiding more intense friction between the two and the pipe wall.

[0020] As a preferred technical solution of the present application, the airbag expansion repair device is a pipeline repair airbag, which is wrapped with a glass fiber fabric uniformly impregnated with a curable resin on the outside when in use. The airbag expansion can make the glass fiber fabric uniformly impregnated with a curable resin close to the pipeline repair position, and cure it at room temperature to form a local short tube lining.

[0021] By adopting the above technical solution, the balloon dilatation repair device can complete the internal repair of the pipe segment, and the repair process is more efficient.

[0022] The beneficial effects of the present application are as follows: when the water-stopping and water-guiding mechanism is placed as a whole in the position to be blocked, the air supply mechanism is used to inflate the outer water-blocking airbag and the inner water-blocking airbag so that they collide and block the pipe. At this time, the water will flow into the drain tube, and the external water pump can be connected to the drain flange interface to continuously draw out the water and discharge it into the drain tube of the water-stopping and water-guiding mechanism located downstream, thereby achieving both blocking and water-stopping and diversion effects, without the need to additionally set up inspection wells and diversion pipes; in addition, the outer water-blocking airbag and the inner water-blocking airbag can each be matched with a water-blocking ring to form two water-stopping lines of defense, which have a more reliable water-stopping effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a schematic diagram of the overall structure of this application;

[0024] Figure 2 This is a schematic diagram of the overall structure of the water-stopping and water-guiding mechanism of this application;

[0025] Figure 3 This is a cross-sectional view of the water-stopping and water-guiding mechanism structure of the present application;

[0026] Figure 4 This is a schematic diagram of the airbag structure of this application.

[0027] In the figure: 1. balloon expansion repair equipment; 2. water-stopping and water-guiding mechanism; 21. drainage cylinder; 221. external water-blocking balloon; 222. internal water-blocking balloon; 2201. external protective layer; 2202. internal balloon; 23. water-blocking ring; 231. elastic ring body; 232. deformation groove; 24. end plate; 25. drainage flange interface; 26. air supply mechanism; 261. main pipe; 262. one-way valve; 263. branch pipe; 264. air supply interface; 27. remote control air valve; 28. water-guiding cover; 29. ​​roller bracket. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0029] Reference Figure 1-2A water stopping and repairing structure for a rainwater pipe comprises a repairing part and a water stopping part. The repairing part is a complete set of airbag expansion repairing equipment 1. The water stopping part comprises two water stopping and water guiding mechanisms 2. The water stopping and water guiding mechanisms 2 comprise a drainage cylinder 21. An outer water blocking airbag 221 and an inner water blocking airbag 222 are fixedly arranged on the outer wall of the drainage cylinder 21. A plurality of water blocking rings 23 are fixedly arranged on the outer water blocking airbag 221 and the inner water blocking airbag 222. When the water stopping and water guiding mechanism 2 is placed as a whole at a position to be blocked, the outer water blocking airbag 221 and the inner water blocking airbag 222 are inflated to cause them to collide and block the pipe.

[0030] In addition, the outer port of the drain cylinder 21 is sealed with an end plate 24, and the middle part of the end plate 24 is sealed with a drain flange interface 25. An air supply mechanism 26 is fixedly arranged in the drain cylinder 21 and is sealed with the outer water-blocking airbag 221 and the inner water-blocking airbag 222. The outer water-blocking airbag 221 and the inner water-blocking airbag 222 are both provided with a sealed remote-controlled air valve 27. By adopting the above technical scheme, the air supply mechanism 26 can be used to inflate the outer water-blocking airbag 221 and the inner water-blocking airbag 222 so that they collide and block the pipeline. At this time, water will flow into the drain cylinder 21, and the external water pump can be connected to the drain flange interface 25 to continuously pump out water and discharge it into the drain cylinder 21 of the water-stopping and water-guiding mechanism 2 located downstream, thereby achieving the two functions of sealing and water-stopping and diversion, without the need to additionally set up inspection wells and diversion pipelines.

[0031] Reference Figure 3 The air supply mechanism 26 includes a main pipe 261 and two one-way valves 262, wherein the one-way valve 262 is tightly connected to the drain cylinder 21 and communicates with the outer water-blocking airbag 221 and the inner water-blocking airbag 222. The outer end of the main pipe 261 passes through the end plate 24 and is tightly connected thereto. The main pipe 261 and the one-way valve 262 are tightly connected via a branch pipe 263. When high-pressure gas is rushed into the main pipe 261, the high-pressure gas will enter the outer water-blocking airbag 221 through the branch pipe 263 and the one-way valve 262. 21, the inner water-resistance airbag 222 is inflated, and due to the presence of the one-way valve 262, the gas can no longer flow out of the outer water-resistance airbag 221 and the inner water-resistance airbag 222, which can effectively improve the inflation efficiency. At the same time, the outer end of the main pipe 261 is tightly connected with an air supply interface 264, and the air supply interface 264 is tightly connected to an external air pump through a hose. This structural form can realize the external air pump through the air supply interface 264 to inject high-pressure gas into the main pipe 261.

[0032] Reference Figure 3The drainage flange interface 25 includes a pipe section that passes through the end plate 24, wherein the inner end of the pipe section is fixedly provided with a closed ring that is tightly connected to the inner wall of the end plate 24, and the outer end of the pipe section is fixedly provided with a connecting flange, wherein one water-stopping and water-guiding mechanism 2 is tightly connected to the input end interface of the external drainage pump by connecting the water pipe through the drainage flange interface 25, and the other water-stopping and water-guiding mechanism 2 is tightly connected to the output end interface of the external drainage pump by connecting the water pipe through the drainage flange interface 25. By adopting the above technical scheme, the water that is blocked upstream and accumulated in the drainage tube 21 can be pumped out by the operation of the external drainage pump and transported to the blocked pipe section downstream. While not affecting the water flow transport function of the pipeline, it can ensure that there is no water flow interference in the pipe section to be repaired.

[0033] Reference Figure 3 The inner end of the drain tube 21 is threadedly connected with a water guide cover 28. The water guide cover 28 is funnel-shaped and the diameter at the maximum dimension of its end is smaller than the diameter of the outer water-blocking airbag 221 and the inner water-blocking airbag 222 after inflation. By adopting the above technical scheme, the water guide cover 28 can guide the water flow, allowing the water flow to flow into the drain tube 21 as directly as possible, thereby facilitating the efficient discharge of accumulated water.

[0034] Reference Figure 4 The outer water-blocking airbag 221 and the inner water-blocking airbag 222 have the same structural composition and size, and both include an outer protective layer 2201 and an inner bag 2202. The main structure of the water-blocking ring 23 is an elastic ring body 231 made of rubber material, and a deformation groove 232 with a trapezoidal cross-section is provided in the elastic ring body 231. By adopting the above technical solution, the outer protective layer 2201 can protect the inner bag 2202, thereby improving the service life of the outer water-blocking airbag 221 and the inner water-blocking airbag 222 as a whole. At the same time, the water-blocking ring 23 is an elastic ring body 231 with a deformation groove 232 provided inside. This structural form can make the water-blocking ring 23 deform more significantly when under pressure, so that the water-blocking ring 23 can be in close contact with the pipe wall over a large area, thereby improving the water-stopping effect.

[0035] Reference Figure 2 A group of roller brackets 29 are fixedly arranged on the outer walls of the bottom of the front and rear ends of the drainage cylinder 21. The roller brackets 29 include an oblique support rod fixedly connected to the drainage cylinder 21 and a roller rotatably arranged at the end of the oblique support rod. By adopting the above technical scheme, the roller brackets 29 can support the water-stopping and water-guiding mechanism 2 as a whole, which can greatly improve the convenience of operation when placing the water-stopping and water-guiding mechanism 2, facilitate the adjustment of the position of the water-stopping and water-guiding mechanism 2, and protect the outer water-blocking airbag 221 and the inner water-blocking airbag 222 when they are not inflated, thereby avoiding more intense friction between the two and the pipe wall.

[0036] Reference Figure 1The balloon dilatation repair device 1 is a pipeline repair balloon, which is wrapped with a glass fiber fabric evenly impregnated with a curable resin when in use. The balloon expansion can make the glass fiber fabric evenly impregnated with a curable resin close to the pipeline repair position, and cure it at room temperature to form a local short tube lining. By adopting the above technical solution, the balloon dilatation repair device 1 can complete the internal repair of the pipe section, and the repair process is more efficient.

[0037] Working principle: When placing the water-stopping and water-guiding mechanism 2, the roller bracket 29 supports the water-stopping and water-guiding mechanism 2 as a whole, which can facilitate the adjustment of the position of the water-stopping and water-guiding mechanism 2, and can also protect the outer water-blocking airbag 221 and the inner water-blocking airbag 222 when they are not expanded. When the water-stopping and water-guiding mechanism 2 as a whole is placed in the position to be blocked, the air supply mechanism 26 is used to inflate the outer water-blocking airbag 221 and the inner water-blocking airbag 222 so that they collide and block the pipeline. At the same time, due to the presence of the one-way valve 262, the air The liquid can no longer flow out of the outer water-blocking airbag 221 and the inner water-blocking airbag 222. The outer water-blocking airbag 221 and the inner water-blocking airbag 222 can each cooperate with the water-blocking ring 23 to form two water-stopping defense lines, which has a more reliable water-stopping effect. When the blocking work is completed, the gas in the outer water-blocking airbag 221 and the inner water-blocking airbag 222 can be discharged by controlling the opening of the remote control air valve 27. At this time, the outer water-blocking airbag 221 and the inner water-blocking airbag 222 shrink, and the water-stopping and water-guiding mechanism 2 can be easily taken out as a whole.

[0038] In addition, when the outer water-blocking airbag 221 and the inner water-blocking airbag 222 are inflated to block the pipeline, the water will flow into the drain tube 21. The external water pump can be connected to the drain flange interface 25 to continuously extract water and discharge it into the drain tube 21 of the water-stopping and water-guiding mechanism 2 located downstream, thereby achieving the two functions of sealing and water-stopping and diversion. There is no need to set up additional inspection wells and diversion pipes. This combination of blocking and dredging can ensure that there is no water flow in the pipeline to be repaired, which is convenient for the airbag expansion repair equipment 1 to perform pipeline repair work.

[0039] The above description is only the preferred embodiment of the present application and is not intended to limit the present application. Although the present application is described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A rainwater pipe water-stopping repair structure, comprising a repair part and a water-stopping part, characterized in that: The repair part is a complete set of airbag expansion repair equipment (1), the water-stopping part comprises two water-stopping and water-guiding mechanisms (2), the water-stopping and water-guiding mechanisms (2) comprising a drainage tube (21), an outer water-blocking airbag (221) and an inner water-blocking airbag (222) are fixedly arranged on the outer wall of the drainage tube (21), a plurality of water-blocking rings (23) are fixedly arranged on the outer water-blocking airbag (221) and the inner water-blocking airbag (222), an outer port of the drainage tube (21) is sealed with an end plate (24), a middle portion of the end plate (24) is sealed with a drainage flange interface (25), an air supply mechanism (26) sealed with the outer water-blocking airbag (221) and the inner water-blocking airbag (222) is fixedly arranged inside the drainage tube (21), and a remote-controlled air valve (27) sealed with the outer water-blocking airbag (221) and the inner water-blocking airbag (222) is fixedly arranged on the outer wall of the drainage tube (21), and a plurality of water-blocking rings (23) are fixedly arranged on the outer water-blocking airbag (221) and the inner water-blocking airbag (222).

2. A rainwater pipe water stopping and repairing structure according to claim 1, characterized in that: The air supply mechanism (26) comprises a main pipe (261) and two one-way valves (262), wherein the one-way valve (262) is tightly connected to the water discharge cylinder (21) and communicates with the outer water-blocking airbag (221) and the inner water-blocking airbag (222), the outer end of the main pipe (261) passes through the end plate (24) and is tightly connected thereto, and the main pipe (261) and the one-way valve (262) are tightly connected via a branch pipe (263).

3. A rainwater pipe water stopping and repairing structure according to claim 2, characterized in that: The outer end of the main pipe (261) is hermetically connected to a gas supply interface (264), and the gas supply interface (264) is hermetically connected to an external air pump via a hose.

4. A rainwater pipe water stopping and repairing structure according to claim 1, characterized in that: The drainage flange interface (25) comprises a pipe section penetrating the end plate (24), wherein a closed ring sealedly connected to the inner wall of the end plate (24) is fixedly provided at the inner end of the pipe section, and a connecting flange is fixedly provided at the outer end of the pipe section, wherein one water-stopping and water-guiding mechanism (2) is sealedly connected to the input end interface of the external drainage pump by connecting the drainage flange interface (25) to a water pipe, and the other water-stopping and water-guiding mechanism (2) is sealedly connected to the output end interface of the external drainage pump by connecting the drainage flange interface (25) to a water pipe.

5. The rainwater pipe water stopping and repairing structure according to claim 1 is characterized in that: The inner end of the drainage cylinder (21) is threadedly connected to a water guide cover (28), the water guide cover (28) is funnel-shaped and the diameter at the maximum dimension of the end thereof is smaller than the diameter of the outer water-blocking airbag (221) and the inner water-blocking airbag (222) after inflation.

6. A rainwater pipe water stopping and repairing structure according to claim 1, characterized in that: The outer water-blocking airbag (221) and the inner water-blocking airbag (222) have completely identical structural compositions and dimensions, and both comprise an outer protective layer (2201) and an inner bag (2202). The main structure of the water-blocking ring (23) is an elastic ring body (231) made of rubber material, and a deformation groove (232) having a trapezoidal cross-section is provided in the elastic ring body (231).

7. A rainwater pipe water stopping and repairing structure according to claim 1, characterized in that: A group of roller brackets (29) are fixedly arranged on the outer walls of the bottom of the front and rear ends of the drainage cylinder (21), and the roller brackets (29) include an oblique support rod fixedly connected to the drainage cylinder (21) and a roller rotatably arranged at the end of the oblique support rod.

8. The rainwater pipe water stopping and repairing structure according to claim 1 is characterized in that: The balloon expansion repair device (1) is a pipeline repair balloon, which is externally wrapped with a glass fiber fabric uniformly impregnated with a curable resin when in use. The balloon expansion can make the glass fiber fabric uniformly impregnated with a curable resin closely attached to the pipeline repair position, and cure at room temperature to form a local short pipe lining.

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