Double-air-chamber air bag device for water conservancy project culvert pipe drainage port leakage stoppage

Abstract

The utility model relates to a double-air-chamber air bag device for leaking stoppage of a water conservancy project culvert pipe water outlet, which comprises a leaking stoppage component and a fixing component. The inner air bag and the outer air bag are sequentially arranged in the length direction of the culvert pipe, a first hard connecting part is formed in the middle of the outer side of the outer air bag, second hard connecting parts are formed in the middle of the inner side of the outer air bag and the middle of the outer side of the inner air bag respectively, and the two are connected through a connecting rod; the fixing plate stretches across the drainage port end of the culvert pipe and is connected to the drainage port end of the culvert pipe, a positioning rod is connected to the position, corresponding to the axis of the culvert pipe, of the fixing plate, the inner end of the positioning rod stretches into the culvert pipe and is connected with the first hard connecting part, and the outer side of the outer air bag is further connected with a pull belt on the two sides of the fixing plate respectively; the air bag device can be connected with a second hook pre-buried outside the culvert pipe in a hanging mode to stabilize the outer air bag, the air bag device is used for blocking the water outlet door, the blocking effect is good, and deviation is not prone to occurring.

Description

Technical Field

[0001] This utility model relates to the field of water conservancy engineering, and in particular to a double-chamber airbag device for sealing the drainage outlet of culverts in water conservancy projects. Background Technology

[0002] Each section of the South-to-North Water Diversion Project is equipped with drainage gates, which are mainly constructed by pre-embedding reinforced concrete pipes and intersecting with the diversion channels. During the management of the South-to-North Water Diversion Project, temporary sealing of these drainage gates is frequently necessary. The main purpose of this sealing is to control water flow and prevent untreated sewage, wastewater, or rainwater from being directly discharged and affecting the water quality of the diversion project. Existing sealing devices primarily use single airbags. While single airbags can provide some sealing, practical applications have revealed problems such as easy displacement and insufficient sealing. Utility Model Content

[0003] To overcome the shortcomings of the prior art, this utility model provides a double-chamber airbag device for sealing the drainage outlet of culverts in water conservancy projects. When sealing the drainage outlet, it not only has a good sealing effect but is also not easy to shift.

[0004] The technical solution adopted by this utility model to solve the above-mentioned technical problems is as follows:

[0005] A double-chamber airbag device for plugging leaks at drainage outlets of culverts in water conservancy projects includes a plugging component and a fixing component;

[0006] The leak-sealing component includes an inner airbag and an outer airbag arranged sequentially along the length of the culvert to form independent air chambers. A first rigid connecting part is formed in the middle of the outer side of the outer airbag, and a second rigid connecting part is formed in the middle of the inner side of the outer airbag and the middle of the outer side of the inner airbag, respectively. The two second rigid connecting parts are connected by a connecting rod. A venting pipe is sealed through the outer airbag and connected from front to back. A first air nozzle and a second air nozzle are connected to the inner and outer ends of the venting pipe, respectively. A third air nozzle and a fourth air nozzle are connected to the outer side of the inner airbag and the outer side of the outer airbag, respectively. The first air nozzle and the third air nozzle are connected by a first air pipe, and the second air nozzle and the fourth air nozzle are connected to a gas cylinder by a second air pipe. An exhaust valve is provided on the second air pipe.

[0007] The fixing component includes a fixing plate that spans across the drainage outlet end of the culvert and is connected thereto. A positioning rod is connected to the fixing plate at a position corresponding to the axis of the culvert. The inner end of the positioning rod extends into the culvert and is connected to the first rigid connecting part. A pull strap is connected to the outer side of the external airbag on both sides of the fixing plate. The end of the pull strap is connected to a first hook, which can be hooked with a second hook positioned outside the culvert to stabilize the external airbag.

[0008] Preferably, the outer periphery of the inner and outer airbags is provided with a rubber layer, and the outer surface of the rubber layer is further provided with serrated sealing protrusions.

[0009] Preferably, the rubber layer is further provided with a nylon wear-resistant coating.

[0010] Preferably, a first threaded connecting sleeve is formed at the connection point of the first rigid connecting part to be detachably threadedly connected to the connecting rod, and a second threaded connecting sleeve is formed at the connection point of the second rigid connecting part to be detachably threadedly connected to the positioning rod.

[0011] Preferably, the positioning rod is positioned on the fixing plate by two nuts.

[0012] Preferably, the trachea is a flexible connecting tube, and the end of the flexible connecting tube is provided with an adapter.

[0013] Preferably, the upper and lower parts of the fixing plate are respectively provided with strip-shaped holes so as to fix it to the culvert by bolts.

[0014] The advantages of this utility model using the above technical solution are:

[0015] 1. This dual-chamber airbag device, with its two independent inner and outer airbags, not only increases the sealing effect, but also ensures that the other can still provide a good seal even if one fails. By using a combination of fixing and leak-sealing components, the inner and outer airbags can be positioned well in the middle of the culvert, minimizing displacement during the sealing process and effectively preventing the inner and outer airbags from being washed out by the water flow.

[0016] 2. The serrated rubber layer increases the friction between the inner and outer airbags and the culvert while ensuring a tight seal, preventing displacement due to water flow impact. Two tension straps further stabilize the outer airbag, reducing the probability of misalignment.

[0017] 3. With the inner and outer airbags being detachable, they can be replaced individually as needed, reducing maintenance costs.

[0018] In summary, the airbag device of this application, which adopts the above features, has an actual service life of more than 50 uses. Attached Figure Description

[0019] Figure 1 This is a top view of the culvert structure when one embodiment of the present invention is applied;

[0020] Figure 2 for Figure 1 Enlarged structural diagram of section A in the middle;

[0021] Figure 3 This is a front view of the present invention in conjunction with a culvert.

[0022] Figure 4 This is a partial structural diagram of the external airbag viewed axially.

[0023] In the diagram, 1. Culvert, 2. Inner airbag, 3. Outer airbag, 4. First rigid connector, 5. Second rigid connector, 6. Connecting rod, 7. First air nozzle, 8. Second air nozzle, 9. Third air nozzle, 10. Fourth air nozzle, 11. Air pipe, 12. Air cylinder, 13. Fixing plate, 14. Positioning rod, 15. Pull strap, 16. First hook, 17. Second hook, 18. Rubber layer, 19. Exhaust valve. Detailed Implementation

[0024] To clearly illustrate the technical features of this solution, the present invention will be described in detail below through specific embodiments and in conjunction with the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application; however, this application may also be implemented in other ways different from those described herein. Therefore, the scope of protection of this application is not limited to the specific embodiments disclosed below.

[0025] like Figure 1-4 As shown, in this embodiment, the dual-chamber airbag device for plugging the drainage outlet of a culvert in a water conservancy project includes a plugging component and a fixing component. The plugging component includes an inner airbag 2 and an outer airbag 3 arranged sequentially along the length of the culvert 1, so that they can form independent air chambers for control. A first rigid connecting part 4 is formed in the middle of the outer side of the outer airbag 3, and a second rigid connecting part 5 is formed in the middle of the inner side of the outer airbag 3 and the middle of the outer side of the inner airbag 2, respectively. The two second rigid connecting parts 5 are connected by a connecting rod 6. A venting pipe is sealed through the outer airbag 3 and connected from front to back. The inner and outer ends of the venting pipe are respectively connected to a first air nozzle 7 and a second air nozzle 8. A third air nozzle 9 and a fourth air nozzle 10 are respectively connected to the outer side of the inner airbag 2 and the outer side of the outer airbag 3. The first air nozzle 7 and the third air nozzle 9 are connected by a first air pipe 11, and the second air nozzle 10 is connected by a fourth air nozzle 10. Air nozzle 8 and fourth air nozzle 10 are respectively connected to gas cylinder 12 through second air pipe. The second air pipe is equipped with an exhaust valve 19. During inflation, the air flow rate is controlled by the shut-off valve on the gas cylinder. The fixing component includes a fixing plate 13 that spans the drainage outlet end of the culvert and is connected thereto. The fixing plate 13 is connected to a positioning rod 14 at the position corresponding to the axis of the culvert. The inner end of the positioning rod 14 extends into the culvert 1 and is connected to the first rigid connecting part 4. This connection can initially position the two airbags so that they are in the middle of the culvert. The outer side of the outer airbag 3 is connected to a pull strap 15 on both sides of the fixing plate 13. Specifically, nylon pull straps can be used. The end of the pull strap 15 is connected to a first hook 16, which cooperates with the second hook 17 positioned outside the culvert to stabilize the outer airbag. Through this structure, the two airbags can be further stabilized, and their displacement during use can be avoided as much as possible.

[0026] In one embodiment, to increase the airbag's resistance to water flow impact, a rubber layer 18 can be provided around the outer periphery of the inner airbag 2 and the outer airbag 3. The outer surface of the rubber layer 18 forms serrated sealing protrusions, which can better seal against the inner wall of the culvert after the airbag inflates, thus increasing friction with the culvert and ensuring better sealing. Specifically, a nylon wear-resistant coating can be applied to the outer surface of the rubber layer to further increase friction.

[0027] In one embodiment, a first threaded connecting sleeve is formed at the connection point of the first rigid connecting part 4 for detachable threaded connection with the connecting rod, and a second threaded connecting sleeve is formed at the connection point of the second rigid connecting part 5 for detachable threaded connection with the positioning rod 14. The positioning rod 14 can be positioned on the fixing plate 13 by two nuts threadedly engaging with it. This structural configuration enables the inner airbag, outer airbag, and fixing plate to be detachable, allowing for individual replacement of any damaged component, thereby helping to reduce maintenance costs.

[0028] In one embodiment, the trachea is a flexible connecting tube with an adapter at the end. The flexible connecting tube can be a commercially available connecting tube.

[0029] In one embodiment, the upper and lower parts of the fixing plate are respectively provided with strip-shaped holes to fix it to the culvert by bolts. The strip-shaped holes can be finely adjusted to reduce the fixing error rate and can be adapted to culverts of various diameters.

[0030] Operating principle: During installation, connect the inner airbag, outer airbag, and fixing plate sequentially. Then connect the fixing plate to the culvert pipe. Specifically, drill holes in the culvert pipe and use bolts to position the fixing plate on the pipe. This completes the initial positioning of the inner and outer airbags, ideally placing them in the middle of the culvert pipe. Next, attach the two pull straps on both sides to the hooks nailed to the outer channel wall of the culvert pipe to further secure the airbags and help reduce the risk of displacement. Then, inflate the two airbags by controlling the shut-off valve on the gas cylinder. The two airbags complement each other to achieve better sealing, and even if one is damaged, the other can still provide a good seal. The rubber layer on the outside of the airbag increases friction with the culvert pipe, helping to stabilize the airbag and prevent it from moving with the water flow. When the drain valve needs to drain water, release the air through the vent valve. After deflating, the position of the airbag will not change with the drainage, and it will inflate again to achieve a good seal with the culvert pipe when restarted.

[0031] The above specific embodiments should not be construed as limiting the scope of protection of this utility model. For those skilled in the art, any alternative improvements or modifications made to the embodiments of this utility model shall fall within the scope of protection of this utility model.

[0032] Any aspects of this utility model not described in detail are known to those skilled in the art.

Claims

1. A double-chamber airbag device for sealing leaks at drainage outlets of culverts in water conservancy projects, characterized in that, Includes leak-sealing components and fixing components; The leak-sealing component includes an inner airbag and an outer airbag arranged sequentially along the length of the culvert to form independent air chambers. A first rigid connecting part is formed in the middle of the outer side of the outer airbag, and a second rigid connecting part is formed in the middle of the inner side of the outer airbag and the middle of the outer side of the inner airbag, respectively. The two second rigid connecting parts are connected by a connecting rod. A venting pipe is sealed through the outer airbag and connected from front to back. A first air nozzle and a second air nozzle are connected to the inner and outer ends of the venting pipe, respectively. A third air nozzle and a fourth air nozzle are connected to the outer side of the inner airbag and the outer side of the outer airbag, respectively. The first air nozzle and the third air nozzle are connected by a first air pipe, and the second air nozzle and the fourth air nozzle are connected to a gas cylinder by a second air pipe. An exhaust valve is provided on the second air pipe. The fixing component includes a fixing plate that spans across the drainage outlet end of the culvert and is connected thereto. A positioning rod is connected to the fixing plate at a position corresponding to the axis of the culvert. The inner end of the positioning rod extends into the culvert and is connected to the first rigid connecting part. A pull strap is also connected to the outer side of the external airbag on both sides of the fixing plate. The end of the pull strap is connected to a first hook, which can be hooked with a second hook positioned outside the culvert to stabilize the external airbag.

2. The double-chamber airbag device for sealing leaks at drainage outlets of culverts in water conservancy projects according to claim 1, characterized in that, The outer periphery of the inner and outer airbags is provided with a rubber layer, and the outer surface of the rubber layer is also formed with serrated sealing protrusions.

3. The double-chamber airbag device for sealing leaks at drainage outlets of culverts in water conservancy projects according to claim 2, characterized in that, The rubber layer is also covered with a nylon wear-resistant coating.

4. The double-chamber airbag device for sealing leaks at drainage outlets of culverts in water conservancy projects according to claim 1, characterized in that, The first rigid connecting part has a first threaded connecting sleeve at its connection point for detachable threaded connection with the connecting rod, and the second rigid connecting part has a second threaded connecting sleeve at its connection point for detachable threaded connection with the positioning rod.

5. The double-chamber airbag device for sealing leaks at drainage outlets of culverts in water conservancy projects according to claim 1 or 4, characterized in that, The positioning rod is positioned on the fixed plate by two nuts.

6. The double-chamber airbag device for sealing leaks at drainage outlets of culverts in water conservancy projects according to claim 4, characterized in that, The trachea is a flexible connecting tube, and the end of the flexible connecting tube is equipped with an adapter.

7. The double-chamber airbag device for sealing leaks at drainage outlets of culverts in water conservancy projects according to claim 1, characterized in that, The upper and lower parts of the fixing plate are respectively provided with strip-shaped holes to fix it to the culvert pipe by bolts.

Images