A modular inflatable air cushion water-blocking and flushing device and system with frame support

Abstract

This utility model relates to a segmented inflatable air cushion water-blocking and flushing device and system with frame support, including a segmented inflatable air cushion assembly, a flat frame support assembly, and a cable lifting mechanism. The flat frame support assembly is installed along the cross-section of the box culvert on the bottom plate of the box culvert, and one end of the flat frame support assembly is rotatably connected to the bottom plate of the box culvert. The segmented inflatable air cushion assembly is installed inside the flat frame support assembly, and the cable lifting mechanism is installed on the top plate of the box culvert, with the other end of the cable lifting mechanism connected to the flat frame support assembly. This utility model can easily drive the flat frame support assembly to rotate through the cable lifting mechanism, thereby raising the height of the segmented inflatable air cushion assembly to meet the water head requirements in different siltation scenarios. At the same time, by adjusting the height of the inflatable air cushion assembly, the potential energy of the water flow is converted into kinetic energy to achieve local high-speed flushing or full-section pulse sludge removal, significantly reducing the equipment's weight, modification costs, and energy consumption, and improving the convenience of daily maintenance.

Description

Technical Field

[0001] This utility model relates to the field of municipal drainage equipment technology, and in particular to a segmented inflatable air cushion water-blocking and flushing device with frame support. Background Technology

[0002] Currently, dredging operations for large stormwater culverts mainly rely on manual labor or traditional machinery, resulting in high costs, low efficiency, and significant safety hazards. Water-blocking facilities, such as traditional steel gates, have revealed the following limitations in practical applications:

[0003] 1. High energy consumption and weight issues: The equipment is heavy and requires a high-power power unit for opening and closing (such as a motor of 5kW or more in traditional solutions), resulting in high energy consumption;

[0004] 2. High construction and renovation costs: Permanent renovation of the box culvert structure is required, resulting in a long construction period and a significant increase in overall costs;

[0005] 3. Poor adaptability to different scenarios: Fixed structures are difficult to dynamically match different working conditions such as siltation thickness and water flow speed, resulting in insufficient flexibility in modification;

[0006] 4. Heavy maintenance burden: Traditional rigid structures such as metal gates are easily damaged by water flow impact, requiring high annual maintenance frequency, and cannot achieve self-cleaning by utilizing water flow dynamics.

[0007] The core pain point of existing technologies is that they lack water-blocking structures that are both lightweight and dynamically adjustable, making it difficult to balance water-blocking accuracy, dredging efficiency, and operation and maintenance costs. Summary of the Invention

[0008] The technical problem to be solved by this utility model is to provide a segmented inflatable air cushion water-blocking and flushing device and system with frame support, which addresses the shortcomings of the prior art.

[0009] The technical solution of this utility model to solve the above-mentioned technical problems is as follows: A segmented inflatable air cushion water-blocking and flushing device with frame support includes a segmented inflatable air cushion assembly, a flat frame support assembly, and a cable lifting mechanism. The flat frame support assembly is set along the cross section of the box culvert on the bottom plate of the box culvert, and one end of the flat frame support assembly is rotatably connected to the bottom plate of the box culvert. The segmented inflatable air cushion assembly is set inside the flat frame support assembly. The cable lifting mechanism is set on the top plate of the box culvert and is connected to the other end of the flat frame support assembly. The cable lifting mechanism can drive the flat frame support assembly to drive the segmented inflatable air cushion assembly to rotate around one end of the flat frame support assembly.

[0010] The beneficial effects of this utility model are as follows: The segmented inflatable air cushion water-blocking and flushing device with frame support of this utility model is rotatably mounted on the bottom plate of the box culvert through a flat frame support assembly, and the segmented inflatable air cushion assembly is set inside the flat frame support assembly. This allows the flat frame support assembly to be rotated by the cable lifting mechanism, thereby increasing the height of the segmented inflatable air cushion assembly to meet the water head requirements under different siltation scenarios. At the same time, by adjusting the height of the inflatable air cushion assembly, the potential energy of the water flow is converted into kinetic energy to achieve local high-speed flushing or full-section pulse sludge removal, significantly reducing the equipment's weight, modification costs, and energy consumption, and improving the convenience of daily maintenance.

[0011] Based on the above technical solution, the present invention can be further improved as follows:

[0012] Further: The segmented inflatable air cushion assembly includes multiple rectangular inflatable air cushions, and the multiple inflatable air cushions are arranged side by side along the cross section of the box culvert. The two sides of the inflatable air cushions are respectively engaged with the corresponding side walls of the flat frame support assembly.

[0013] The advantages of the above-mentioned further solutions are: by setting up multiple inflatable air cushions, each can be independently controlled, and the air can be inflated and deflated in sections as needed, which is efficient, flexible, and easier to install.

[0014] Further: The inflatable air cushion includes a double-layer structure, with the outer layer made of high-strength wear-resistant fiber-reinforced rubber and the inner layer made of high-airtightness rubber.

[0015] The beneficial effects of the above-mentioned further solutions are: by setting a double-layer structure, the overall sealing performance can be guaranteed, and the high-strength wear-resistant fiber-reinforced rubber material has good tensile strength, while the high airtightness rubber has high sealing performance and can meet the water-blocking requirements.

[0016] Further: The flat frame support assembly includes a number of support frames equal to the number of inflatable air cushions. Multiple support frames are arranged side by side along the cross section of the box culvert. One end of each support frame is rotatably connected to the bottom plate of the box culvert, and two connected support frames are connected and fixed to each other. Each inflatable air cushion is correspondingly arranged inside the support frame, and the two sides of each inflatable air cushion are slidably connected to the inner sidewall of the corresponding support frame.

[0017] The beneficial effects of the above-mentioned further solution are: by setting the support frame, the corresponding inflatable air cushion can be easily supported, ensuring the water-blocking stability of the entire device; and by slidingly connecting the two sides of the inflatable air cushion to the inner sidewall of the corresponding support frame, the inflatable air cushion can automatically adjust its position relative to the inner sidewall of the support frame when inflated, achieving full-section waterproof sealing.

[0018] Furthermore, sliders are provided on both sides of the inflatable air cushion, and grooves matching the sliders are provided on the inner sidewalls of opposite sides of the supporting frame, and the sliders are slidably disposed in the corresponding grooves.

[0019] The beneficial effect of the above-mentioned further solution is that by setting the slider and the groove, the inflatable air cushion can be precisely fitted with the inner wall of the support frame, thereby improving the sealing performance.

[0020] Furthermore, the support frame is made of hot-dip galvanized metal, and the surface of the support frame is coated with an anti-corrosion coating.

[0021] The beneficial effects of the above-mentioned further solutions are: using hot-dip galvanized metal material, on the one hand, it has high structural strength, on the other hand, it has good corrosion resistance, and by coating the surface with an anti-corrosion coating, the corrosion resistance of the supporting frame can be further improved.

[0022] Furthermore: the cable lifting mechanism includes cable lifting units that are the same number as the number of inflatable air cushions and are arranged in a one-to-one correspondence. Each cable lifting unit includes a cable and a winch. The winch is set on the top plate of the box culvert. One end of the cable is fixed to the drum of the winch, and the other end of the cable is connected to the other end of the corresponding support frame.

[0023] The beneficial effect of the above-mentioned further solution is that by setting up the winch and the cable, the drum of the winch can drive the other end of the support frame to rotate around one end of it via the cable, thereby adjusting the height and posture of the inflatable air cushion.

[0024] Furthermore, the cable lifting unit also includes a load sensor, which is disposed on the cable and used to detect the lifting force of the cable.

[0025] The beneficial effect of the above-mentioned further solution is that by setting the load sensor, the lifting force of the cable can be detected, which facilitates the timely activation of the protection mechanism in case of overload and ensures the reliability of the entire device.

[0026] Furthermore, the bottom plate of the box culvert is provided with a groove for accommodating the flat plate frame support assembly, and the cable lifting mechanism can drive the flat plate frame support assembly to rotate until it is completely housed in the groove.

[0027] The beneficial effect of the above-mentioned further solution is that by setting the groove on the bottom plate of the box culvert, the flat frame support assembly can be easily rotated to be completely stored in the groove during the drainage mode, and the inflatable air cushion can be completely stored in the flat frame support assembly after being deflated, thus ensuring the drainage capacity of the entire cross section of the box culvert.

[0028] This utility model also provides a segmented inflatable air cushion water-blocking and flushing system with frame support, including a water flow acquisition component, a controller, and the segmented inflatable air cushion water-blocking and flushing device with frame support. The water flow acquisition component and the cable lifting mechanism are electrically connected to the controller.

[0029] This utility model discloses a segmented inflatable air cushion water-blocking and flushing system with frame support. The system collects real-time data of upstream and downstream water flow through the water flow acquisition component, and the controller controls the cable lifting mechanism to drive the support frame and the inflatable air cushion to adaptively adjust its height based on the real-time data of upstream and downstream water flow. This is very convenient and effectively ensures that the drainage channel is unobstructed. Attached Figure Description

[0030] Figure 1 This is a side view of a segmented inflatable air cushion water-blocking and flushing device with frame support according to an embodiment of the present invention.

[0031] Figure 2 This is a top view of an embodiment of the inflatable air cushion and supporting frame of the present invention.

[0032] Figure 3 This is a schematic diagram of the structure of the grille or support mesh within the support frame according to an embodiment of the present invention;

[0033] Figure 4 This utility model Figure 3 Schematic diagram of the cross-sectional structure of the middle AA section;

[0034] Figure 5 This utility model Figure 3 Schematic diagram of the cross-sectional structure of the middle BB section;

[0035] Figure 6 This is a schematic diagram of the planar structure of an inflatable air cushion according to an embodiment of the present invention.

[0036] The attached diagram lists the components represented by each number as follows:

[0037] 1. Segmented inflatable air cushion assembly; 2. Flat plate frame support assembly; 3. Cable lifting mechanism; 4. Box culvert bottom plate; 5. Box culvert top plate; 6. Inflatable air cushion; 7. Support frame; 8. Slider; 9. Cable; 10. Winch; 11. Groove. Detailed Implementation

[0038] The principles and features of this utility model are described below with reference to the accompanying drawings. The examples given are only for explaining this utility model and are not intended to limit the scope of this utility model.

[0039] like Figures 1 to 6 As shown, a segmented inflatable air cushion water-blocking and flushing device with frame support includes a segmented inflatable air cushion assembly 1, a flat frame support assembly 2, and a cable lifting mechanism 3. The flat frame support assembly 2 is installed on the bottom plate 4 of the box culvert along the cross section, and one end of the flat frame support assembly 2 is rotatably connected to the bottom plate 4 of the box culvert. The segmented inflatable air cushion assembly 1 is installed inside the flat frame support assembly 2. The cable lifting mechanism 3 is installed on the top plate 5 of the box culvert, and the cable lifting mechanism 3 is connected to the other end of the flat frame support assembly 2. The cable lifting mechanism 3 can drive the flat frame support assembly 2 to drive the segmented inflatable air cushion assembly 1 to rotate around one end of the flat frame support assembly 2.

[0040] This utility model discloses a segmented inflatable air cushion water-blocking and flushing device with frame support. The device is rotatably mounted on the bottom plate 4 of the box culvert via a flat frame support assembly 2, and the segmented inflatable air cushion assembly 1 is placed inside the flat frame support assembly 2. This allows the flat frame support assembly 2 to be rotated via the cable lifting mechanism 3, thereby increasing the height of the segmented inflatable air cushion assembly 1 to meet the water head requirements in different siltation scenarios. At the same time, by adjusting the height of the inflatable air cushion assembly 1, the potential energy of the water flow is converted into kinetic energy to achieve local high-speed flushing or full-section pulse sludge removal, significantly reducing the weight of the equipment, modification costs and energy consumption, and improving the convenience of daily maintenance.

[0041] In one or more embodiments of this utility model, the segmented inflatable air cushion assembly 1 includes multiple rectangular inflatable air cushions 6, which are arranged side by side along the cross-section of the box culvert. The two side edges of each inflatable air cushion 6 are respectively engaged with the corresponding side walls of the flat frame support assembly 2. By setting multiple inflatable air cushions 6, they can be independently controlled, and inflated and deflated in segments as needed, which is efficient, flexible, and easier to install.

[0042] In practice, 3-5 independent inflatable air cushions 6 are generally sufficient. The height of a single inflatable air cushion 6 should be in a reasonable proportion to the total height of the box culvert, and the width should be evenly distributed to match the dimensions of the box culvert. The number and lifting height of the inflatable air cushions 6 can also be flexibly adjusted according to site requirements to meet the water head requirements in different dredging scenarios. The potential energy of the water flow can be converted into kinetic energy to achieve local high-speed flushing or full-section pulse dredging, thereby significantly reducing equipment weight, modification costs and energy consumption, and improving the convenience of daily maintenance.

[0043] In practice, the inflatable air cushion 6 is equipped with a quick-release valve, which allows for rapid deflation after dredging and allows it to be stored together with the supporting frame 7 in the groove 11, restoring the full-section drainage capacity of the culvert, or for rapid drainage in emergencies, effectively responding to unexpected situations. Here, the quick-release valve is an electronic valve, triggered by a controller, which can control the rapid deflation of the inflatable air cushion 6 in emergencies.

[0044] Optionally, in one or more embodiments of this utility model, the inflatable air cushion 6 includes a double-layer structure, with the outer layer made of high-strength wear-resistant fiber-reinforced rubber and the inner layer made of high-airtightness rubber. By setting the double-layer structure, the overall sealing performance can be guaranteed. Furthermore, the high-strength wear-resistant fiber-reinforced rubber has good tensile strength, and the high-airtightness rubber not only has high sealing performance, meeting water-blocking requirements, but is also lightweight.

[0045] In one or more embodiments of this utility model, the flat plate frame support assembly 2 includes the same number of support frames 7 as the inflatable air cushions 6. Multiple support frames 7 are arranged side-by-side along the cross-section of the box culvert. One end of each support frame 7 is rotatably connected to the box culvert bottom plate 4 via a hinge (the hinge load-bearing capacity meets structural design standards and does not require permanent anchoring). Two connected support frames 7 are interconnected and fixed. Each inflatable air cushion 6 is correspondingly disposed within one of the support frames 7, and the two side edges of each inflatable air cushion 6 are slidably connected to the inner sidewall of the corresponding support frame 7. By providing the support frames 7, the corresponding inflatable air cushions 6 can be easily supported, ensuring the water-blocking stability of the entire device. Furthermore, by slidably connecting the two side edges of each inflatable air cushion 6 to the inner sidewall of the corresponding support frame 7, the inflatable air cushion 6 can automatically adjust its position relative to the inner sidewall of the support frame 7 during inflation, achieving full-section waterproof sealing.

[0046] Specifically, in one or more embodiments of this utility model, sliders 8 are respectively provided on both sides of the inflatable air cushion 6, and grooves matching the sliders 8 are respectively provided on the inner sidewalls of opposite sides of the supporting frame 7. The sliders 8 are slidably disposed in the corresponding grooves. By setting the sliders 8 and the grooves, after inflation, the air cushion 6 can be tightly bonded to the inner wall of the box culvert, the bottom of the channel, and the adjacent inflatable air cushion 6 through elastic deformation, which can make the inflatable air cushion 6 precisely fit with the inner sidewall of the supporting frame 7, thereby improving the sealing performance.

[0047] In order to ensure the uniformity of force distribution on the entire flat frame support assembly 2, in this embodiment of the present invention, a grid or support mesh is also provided inside the support frame 7 to ensure that the pressure of the inflatable air cushion 6 is evenly distributed.

[0048] Optionally, in one or more embodiments of this utility model, the supporting frame 7 is made of hot-dip galvanized metal, and the surface of the supporting frame 7 is coated with an anti-corrosion coating. Using hot-dip galvanized metal provides both high structural strength and good corrosion resistance, and the corrosion resistance of the supporting frame 7 can be further improved by applying an anti-corrosion coating to the surface.

[0049] In one or more embodiments of this utility model, the cable lifting mechanism 3 includes cable lifting units, which are arranged in a one-to-one correspondence with the number of inflatable air cushions 6. Each cable lifting unit includes a cable 9 and a winch 10. The winch 10 is mounted on the top plate 5 of the box culvert. One end of the cable 9 is fixed to the drum of the winch 10, and the other end of the cable 9 is connected to the other end of the corresponding support frame 7. By setting up the winch 10 and the cable 9, the drum of the winch 10 can drive the other end of the support frame 7 to rotate around one end of it via the cable 9, thereby adjusting the height and posture of the inflatable air cushion 6.

[0050] In practice, in order to ensure the performance of the cable 9, the cable 9 in the embodiment of this utility model is made of stainless steel, and the winch is an existing low-noise electric winch.

[0051] Optionally, in one or more embodiments of this utility model, the cable lifting unit further includes a load sensor, which is disposed on the cable 9 and used to detect the lifting force of the cable 9. By setting the load sensor, the lifting force of the cable 9 can be detected, which facilitates the timely activation of the protection mechanism in case of overload. For example, in case of overload, the winch 10 can be controlled to release the cable 9. In this way, the impact force of the water flow can be reduced in time, ensuring the reliability of the entire device, improving the stability of equipment operation, and reducing the failure rate.

[0052] In one or more embodiments of this utility model, the bottom plate 4 of the box culvert is provided with a groove 11 for accommodating the flat frame support assembly 2, and the cable lifting mechanism 3 can drive the flat frame support assembly 2 to rotate until it is completely housed in the groove 11. By providing the groove 11 on the bottom plate 4 of the box culvert, it is convenient to rotate the flat frame support assembly 2 to be completely housed in the groove 11 during drainage mode, and to completely house the inflatable air cushion 6 after deflation within the flat frame support assembly 2, thus ensuring the drainage capacity of the entire cross-section of the box culvert.

[0053] This utility model also provides a segmented inflatable air cushion water-blocking and flushing system with frame support, including a water flow acquisition component, a controller, and the segmented inflatable air cushion water-blocking and flushing device with frame support. The water flow acquisition component and the cable lifting mechanism 3 are electrically connected to the controller.

[0054] This utility model discloses a segmented inflatable air cushion water-blocking and flushing system with frame support. The system collects real-time data of upstream and downstream water flow through the water flow acquisition component. The controller controls the cable lifting mechanism 3 to drive the support frame 7 and the inflatable air cushion 6 to adaptively adjust its height based on the real-time data of upstream and downstream water flow. This is very convenient and effectively ensures that the drainage channel is unobstructed.

[0055] Here, the controller is also electrically connected to the quick-release valve so that it can be controlled to release gas quickly in an emergency, effectively responding to sudden situations.

[0056] In the embodiments of this utility model, the controller can be an existing microcontroller, and the specific control process is existing technology, which will not be described in detail in this utility model, and is not within the protection scope of this utility model.

[0057] In practice, the water flow acquisition component includes a water level sensor, a flow velocity sensor, and a pressure sensor, which are used to collect the water level, flow velocity, and pressure of the upstream and downstream water flow in real time. In this way, the controller can control the flow in a coordinated manner based on the collected water flow information and make intelligent adjustments based on preset thresholds.

[0058] During installation, firstly, based on the actual dimensions of the box culvert, prefabricate the segmented inflatable air cushion assembly 1 and the flat frame support assembly 2. Then, position the flat frame support assembly 2 on the bottom plate 4 of the box culvert at a reasonable interval and fix it with expansion bolts. The bottom is connected by hinges. Next, embed the inflatable air cushion 6 into the flat frame support assembly 2, and insert the slider 8 into the corresponding groove. Finally, connect the pipeline and install the sensor components.

[0059] This utility model's modular inflatable air cushion water-blocking and flushing device and system with frame support has three working modes:

[0060] 1. Water blocking mode: According to the actual siltation situation, the segmented inflatable air cushion component 1 is driven to move to the specified height by the cable lifting mechanism 3. After inflation, it forms a sealed structure, reduces the water passage cross section, raises the upstream water level and accumulates flushing kinetic energy, and at the same time increases the downstream water flow speed to the effective flushing threshold.

[0061] 2. Flushing mode: After the controller triggers the flushing mode based on the detected water flow information, the winch 10 quickly releases the cable 9, and the support frame 7 and the inflatable air cushion 6 quickly tilt under the action of water pressure, forming a sudden high-speed water flow to achieve efficient sludge removal; the system can adjust the number and height (angle) of the air cushions according to the required flushing flow rate and velocity to optimize the flushing effect.

[0062] 3. Drainage mode: After the dredging operation is completed, the inflatable air cushion 6 can be quickly deflated and stored in the supporting frame 7 to restore the drainage capacity of the entire box culvert.

[0063] This utility model discloses a segmented inflatable air cushion water-blocking and flushing device and system with frame support, which can be applied to conventional dredging operations and emergency drainage scenarios. In conventional dredging operations, the inflatable air cushion 6 is raised to a suitable height, and after inflation, the downstream flow velocity is increased to the effective flushing range, which can significantly improve dredging efficiency during continuous operation. In emergency drainage scenarios, the inflatable air cushion 6 can be quickly deflated by triggering the controller, restoring the full cross-section drainage capacity of the culvert in a short time and meeting the emergency drainage needs.

[0064] This utility model discloses a modular inflatable air cushion water-blocking and flushing device and system with frame support, suitable for dredging and emergency drainage of large-size stormwater culverts. The device forms a sealed structure through lightweight modular inflatable air cushion components and a flat frame support component 2, enabling dynamic adjustment of the water head and flushing flow velocity. The controller supports automated operation and rapid emergency response. It boasts significant advantages such as light weight and easy maintenance, effectively improving the dredging efficiency of municipal pipe networks and reducing operation, maintenance, and renovation costs.

[0065] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A segmented pneumatic airbag retaining and scouring device with a skeleton support, characterized in that: The system includes a segmented inflatable air cushion assembly (1), a flat frame support assembly (2), and a cable lifting mechanism (3). The flat frame support assembly (2) is set on the bottom plate (4) of the box culvert along the cross section of the box culvert, and one end of the flat frame support assembly (2) is rotatably connected to the bottom plate (4) of the box culvert. The segmented inflatable air cushion assembly (1) is set inside the flat frame support assembly (2). The cable lifting mechanism (3) is set on the top plate (5) of the box culvert, and the cable lifting mechanism (3) is connected to the other end of the flat frame support assembly (2). The cable lifting mechanism (3) can drive the flat frame support assembly (2) to drive the segmented inflatable air cushion assembly (1) to rotate around one end of the flat frame support assembly (2).

2. The framed supported segmented pneumatic cushion deflector device according to claim 1, wherein: The segmented inflatable air cushion assembly (1) includes multiple rectangular inflatable air cushions (6), and the multiple inflatable air cushions (6) are arranged side by side along the cross section of the box culvert. The two sides of the inflatable air cushions (6) are respectively engaged with the corresponding side walls of the flat frame support assembly (2).

3. The framed supported segmented pneumatic ground cushion water deflector according to claim 2, wherein: The inflatable air cushion (6) has a double-layer structure, with the outer layer made of high-strength wear-resistant fiber-reinforced rubber and the inner layer made of high-airtightness rubber.

4. The framed supported segmented pneumatic cushion deflector device according to claim 2, wherein: The flat frame support assembly (2) includes the same number of support frames (7) as the inflatable air cushions (6). Multiple support frames (7) are arranged side by side along the cross section of the box culvert. One end of the support frame (7) is rotatably connected to the bottom plate (4) of the box culvert, and two connected support frames (7) are connected and fixed to each other. The inflatable air cushions (6) are arranged one-to-one in the support frames (7), and the two sides of the inflatable air cushions (6) are slidably connected to the inner sidewalls of the corresponding support frames (7).

5. A framed supported sectional inflatable air cushion barrier scouring device according to claim 4, characterised in that: The inflatable air cushion (6) is provided with sliders (8) on both sides respectively, and the inner sidewalls of the supporting frame (7) on both sides are provided with grooves that match the sliders (8) respectively, and the sliders (8) are slidably disposed in the corresponding grooves.

6. A framed supported sectional inflatable air cushion barrier scouring device according to claim 5, characterised in that: The supporting frame (7) is made of hot-dip galvanized metal, and the surface of the supporting frame (7) is coated with an anti-corrosion coating.

7. The framed supported segmented pneumatic cushion deflector device according to claim 4, wherein: The cable lifting mechanism (3) includes cable lifting units that are the same number as the inflatable air cushion (6) and are arranged one-to-one. Each cable lifting unit includes a cable (9) and a winch (10). The winch (10) is set on the top plate (5) of the box culvert. One end of the cable (9) is fixed on the drum of the winch (10), and the other end of the cable (9) is connected to the other end of the corresponding support frame (7).

8. The framed supported segmented pneumatic cushion deflector device according to claim 7, wherein: The cable lifting unit also includes a load sensor, which is installed on the cable (9) and used to detect the lifting force of the cable (9).

9. A framed supported sectional inflatable air cushion barrier scouring device according to any one of claims 1 to 8, characterised in that: The bottom plate (4) of the box culvert is provided with a groove (11) for accommodating the flat plate frame support assembly (2), and the cable lifting mechanism (3) can drive the flat plate frame support assembly (2) to rotate until it is completely housed in the groove (11).

10. A framed supported segmented pneumatic air cushion water retaining scouring system characterized by: The water flow collecting assembly, the controller and the skeleton-supported sectional inflatable air cushion water-blocking and scouring device of any one of claims 1-9 are electrically connected with each other.

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