Riverway management is used with dredging equipment

By designing the transfer components and cutting shovels on the hull, the problems of significant ecological impact and clogging of suction pipes in river dredging were solved, achieving efficient and clogging-free dredging results.

CN120968032BActive Publication Date: 2026-01-23SHANXI CONSTR ENG CO LTD
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Patent Information

Application Number
CN202511511625.9
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2025-10-22
Publication Date
2026-01-23
Estimated Expiration
2045-10-22

AI Technical Summary

Technical Problem

Existing river dredging technologies suffer from problems such as significant impact on the ecological environment, low dredging efficiency, and blockage of suction pipes.

Method used

A dredging device comprising a hull, suction pipe, transmission assembly, and cutting shovel was designed. The device uses a fixed rod on the transmission assembly and a cutting rope to dredge and cut silt and impurities. By combining the adjustment of the telescopic component and the drive assembly, clogging is avoided. The filter plate sleeve and inner filter plate reduce the damage of impurities to the device.

Benefits of technology

It achieves efficient dredging without affecting the ecological environment, avoids blockage of suction pipes, and improves dredging efficiency and equipment lifespan.

✦ Generated by Eureka AI based on patent content.

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Abstract

The application provides a dredging equipment for river management, and belongs to the technical field of dredging equipment. The dredging equipment comprises a transmission assembly, a mounting block, a support and a driving assembly. The support is fixedly installed at one end of a ship body. The mounting block is slidably installed on the support. The support is fixedly installed with an extension piece. The extension piece is connected with the mounting block. The transmission assembly is rotatably installed on the mounting block. The transmission assembly comprises a transmission belt. A plurality of groups of fixing rods are fixedly installed on the transmission belt. The plurality of groups of fixing rods are used for salvaging sundries in silt. A suction pipe is installed through the side of the cutting shovel away from the cutting rope. The extension piece and the rotatable transmission assembly can adjust the position of the transmission assembly under water according to the water level of the silt. Meanwhile, the position of the transmission assembly under water can be finely adjusted. The plurality of groups of fixing rods arranged on the transmission belt can salvage sundries in the silt before suction, so that the suction pipe is prevented from being blocked by the sundries.
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Description

Technical Field

[0001] This invention belongs to the technical field of dredging equipment, specifically a dredging device for river management. Background Technology

[0002] As an important aquatic ecosystem, the problem of sediment deposition in rivers has always been a key challenge in environmental protection and water resource management. Sediment deposition not only affects the self-purification capacity of water bodies, but also seriously impacts the habitats and survival of aquatic organisms. In addition, sediment deposition can also lead to problems such as water flow blockage and flooding. Therefore, regular dredging and cleaning of rivers is particularly important.

[0003] Currently, two main methods are used for dredging riverbed sediment: dry dredging and wet dredging. While dry dredging was widely used in the early days, it has gradually been phased out. The main reason is that it requires partial flow interruption, which may seriously affect the river's ecological environment and the surrounding ecosystem. Achieving flow interruption has brought great difficulties to the dredging work and limited its efficiency and scope.

[0004] Wet dredging, which does not require interrupting the flow of water and can be carried out while the vessel is in motion, solves some of the problems of dry dredging, but it also has significant drawbacks. First, methods such as jet dredging and hydraulic dredging turbidify the silt with the water to facilitate mud transfer, but the large amount of harmful substances accumulated in the silt will be released back into the river channel, impacting the downstream aquatic environment since the river is flowing. Second, during the suction process, the silt layer contains a large amount of garbage and stones, which can clog the suction pipes, thus affecting the wet dredging process. Summary of the Invention

[0005] In view of the shortcomings of the prior art, the technical problem to be solved by the embodiments of the present invention is to provide a dredging device for river management.

[0006] To solve the above-mentioned technical problems, the present invention provides the following technical solution: a dredging device for river management, comprising a hull, a suction pipe, and a second collection box, wherein the suction pipe is connected to the second collection box, the second collection box is installed on the hull, and the device further comprises a transmission component, a mounting block, a bracket, and a drive component. A bracket is fixedly installed at one end of the hull, a mounting block is slidably installed on the bracket, a telescopic component is fixedly installed on the bracket, the output end of the telescopic component is connected to the mounting block, a transmission component is rotatably installed on the mounting block, and the drive component is used to drive the transmission component to rotate as a whole. The transmission component includes a transmission belt, and a plurality of fixed rods are fixedly installed on the transmission belt in a direction parallel to the horizontal. The plurality of fixed rods fixedly installed in the direction parallel to the horizontal form a group of fixed rods, and a plurality of groups of fixed rods are fixedly installed in the conveying direction of the transmission belt. The plurality of groups of fixed rods are used to dredge debris in the silt.

[0007] A cutting shovel is rotatably mounted on one end of the transmission component near the water surface. A counterweight is fixedly installed inside the cutting shovel. Extension rods are fixedly installed at both ends of the cutting shovel. A cutting rope is fixedly installed between the extension rods. A suction pipe is installed through the side of the cutting shovel away from the cutting rope.

[0008] As a further improvement: the counterweight is composed of an arc-shaped side and an inclined side, with the arc-shaped side facing the transmission component.

[0009] As a further improvement: the transmission assembly also includes side plates, a motor, a transmission belt, a fixed shaft, and transmission rollers. Transmission rollers are rotatably mounted on the inner sides of the two side plates, and a transmission belt is mounted on the surface of the transmission rollers. A fixed shaft is fixedly mounted on the outer side of the side plates, and the fixed shaft is rotatably mounted on a mounting block. The motor is connected to one of the transmission rollers.

[0010] As a further improvement: a load-bearing plate is fixedly installed at the output end of the telescopic component, and a second spring is installed between the load-bearing plate and the mounting block.

[0011] As a further improvement, it also includes a filter plate sleeve and an inner filter plate. An extension frame is rotatably mounted on the fixed shaft. A filter plate sleeve is rotatably mounted on the end of the extension frame away from the fixed shaft. An inner filter plate is slidably mounted inside the filter plate sleeve. A first spring is installed between the inner filter plate and the filter plate sleeve. A connecting rope is installed between the inner filter plate and the side plate.

[0012] As a further improvement, a side baffle is fixedly installed on the side plate.

[0013] As a further improvement, a first collection box is also included, which is used to collect debris.

[0014] Compared with the prior art, the beneficial effects of the present invention are as follows: by providing a telescopic component and a rotatable transmission assembly, the position of the transmission assembly extending underwater can be adjusted according to the water level of the silt. When the water level of the silt fluctuates during the journey, the angle of the transmission assembly can be adjusted by the drive assembly, thereby fine-tuning the position of the transmission assembly extending underwater. By providing a cutting rope and an extension rod, the underwater silt layer can be cut and inserted into the silt layer simultaneously. By providing several sets of fixed rods on the conveyor belt, impurities in the silt can be removed before suction, preventing impurities from clogging the suction pipe. Attached Figure Description

[0015] Figure 1 A schematic diagram of the overall structure of a dredging equipment for river management;

[0016] Figure 2 A schematic diagram of the dredging structure of a dredging device for river management;

[0017] Figure 3 A schematic diagram of the cross-sectional structure of a filter plate sleeve for a dredging device used in river management;

[0018] Figure 4 A schematic diagram of the structure of an expansion joint of a dredging device used for river management;

[0019] Figure 5 A schematic diagram of the drive component structure of a dredging equipment for river management;

[0020] Figure 6 A schematic diagram of the transmission component structure of a dredging equipment for river management;

[0021] Figure 7 A schematic diagram of the cutting shovel structure of a dredging device for river management. Figure 1 ;

[0022] Figure 8 A schematic diagram of the cutting shovel structure of a dredging device for river management. Figure 2 ;

[0023] Figure 9 A schematic diagram of the counterweight structure of a dredging device for river management;

[0024] In the diagram: 1. Hull; 100. Sliding groove; 110. Clearance groove; 2. Filter plate sleeve; 20. Extension frame; 3. Inner filter plate; 30. Connecting rope; 31. First spring; 4. Cutting shovel; 40. Extension rod; 41. Cutting rope; 42. Through groove; 5. Transmission assembly; 51. Side plate; 52. Motor; 53. Conveyor belt; 54. Fixed shaft; 55. Transmission roller; 6. Mounting block; 7. Telescopic component; 8. Drive assembly; 81. Driven gear; 82. Driven gear; 9. Support plate; 10. Second spring; 11. Bracket; 12. First collection box; 13. Second collection box; 14. Limiting block; 15. Fixed rod; 16. Side baffle; 17. Counterweight; 171. Arc side; 172. Inclined side; 18. Suction pipe. Detailed Implementation

[0025] The technical solution of this application will be further described in detail below with reference to specific embodiments.

[0026] The embodiments of this application are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this application, and should not be construed as limiting this application.

[0027] Please see Figures 1 to 9 In one embodiment, a dredging device for river management includes a hull 1, a suction pipe 18, and a second collection box 13. The suction pipe 18 is connected to the second collection box 13. The second collection box 13 is installed on the hull 1. The device also includes a transmission component 5, a mounting block 6, a bracket 11, and a drive component 8. The bracket 11 is fixedly installed at one end of the hull 1. The mounting block 6 is slidably installed on the bracket 11. A telescopic component 7 is fixedly installed on the bracket 11. The output end of the telescopic component 7 is connected to the mounting block 6. The transmission component 5 is rotatably installed on the mounting block 6. The drive component 8 is used to drive the transmission component 5 to rotate as a whole. The transmission component 5 includes a transmission belt 53. Several fixed rods 15 are fixedly installed on the transmission belt 53 in a direction parallel to the horizontal. The several fixed rods 15 fixedly installed in the direction parallel to the horizontal form a group of fixed rods 15. Several groups of fixed rods 15 are fixedly installed in the conveying direction of the transmission belt 53. The several groups of fixed rods 15 are used to dredge debris in the silt.

[0028] The transmission component 5 is rotatably mounted with a cutting shovel 4 at one end near the water surface. A counterweight 17 is fixedly installed inside the cutting shovel 4. Extension rods 40 are fixedly installed at both ends of the cutting shovel 4. A cutting rope 41 is fixedly installed between the two extension rods 40. A suction pipe 18 is installed through the side of the cutting shovel 4 away from the cutting rope 41.

[0029] In this embodiment, the brackets 11 are respectively arranged on both sides of the hull 1. Each of the two brackets 11 has a sliding groove 100 on the side facing each other, and a clearance groove 110 on the side facing away from each other. The mounting block 6 is located in the sliding groove 100, and the fixed shaft 54 ​​passes through the mounting block 6 and is located in the clearance groove 110.

[0030] The cutting shovel 4 has several through slots 42 on one side corresponding to the fixing rod 15. The suction pipe 18 is evenly spaced on the cutting shovel 4. The suction pipe 18 is also connected to a suction pump. The suction pump is connected to the suction pipe 18 and is installed on the hull 1.

[0031] During dredging operations, the height of the mounting block 6 is first adjusted according to the water level of the silt. This adjustment is achieved by activating the telescopic component 7, which moves the mounting block 6 to the corresponding position. As the vessel 1 moves, the water level of the silt at the bottom fluctuates. Therefore, the drive assembly 8 is activated, causing the transmission assembly 5 to rotate. This allows the fixed rod 15 on the transmission assembly 5 to penetrate deep into the silt layer, with the end of the transmission assembly 5 positioned directly above the silt layer. Then, the transmission assembly 5 is activated, causing the transmission belt 53 to rotate and the fixed rod 15 on the transmission belt 53 to penetrate deep into the silt layer, removing impurities such as branches, weeds, stones, and plastic waste. By removing these impurities, the suction process is prevented from being disrupted. Pipe 18 causes blockage. During the dredging process, impurities will fall onto the surface of the conveyor belt 53 as the conveyor belt 53 rotates and falls from the other end of the conveyor assembly 5 onto the hull 1, thus enabling the collection of impurities. As the hull 1 moves, the cutting rope 41 cuts the underwater silt layer by inserting the extension rod 40 and the cutting rope 41 into the silt layer. As the hull 1 continues to move, the cutting shovel 4 and the fixing rod 15 cut the silt layer into several blocks. At this time, the suction pipe 18 can easily suck up the silt and discharge it into the second collection box 13. When the second collection box 13 is full, the hull 1 docks and transfers the collected silt. After the transfer is completed, it continues to move forward. The dredging structure in this invention is suitable for small waterways and can dock at any time.

[0032] By setting a counterweight 17, the cutting shovel 4 can be kept in a vertical position when no external force is applied.

[0033] By incorporating a telescopic component 7 and a rotatable transmission component 5, the underwater position of the transmission component 5 can be adjusted according to the water level of the silt. When the water level of the silt fluctuates during the journey, the angle of the transmission component 5 can be adjusted by the drive component 8, thereby fine-tuning the underwater position of the transmission component 5. The cutting rope 41 and the extension rod 40 can cut the underwater silt layer and insert into the silt layer. By incorporating several sets of fixed rods 15 on the conveyor belt 53, impurities in the silt can be removed before suction, preventing impurities from clogging the suction pipe 18.

[0034] Please see Figure 9 In one embodiment, the counterweight 17 is composed of an arc-shaped side 171 and an inclined side 172, with the arc-shaped side 171 facing the transmission component 5.

[0035] In this embodiment, by providing the inclined side 172, the sludge cut into blocks by the cutting shovel 4 and the fixing rod 15 can be lifted. During the lifting process, the sludge can be disintegrated and dispersed, which is convenient for subsequent suction. At the same time, by lifting the sludge cut into blocks by the cutting shovel 4 and the fixing rod 15 through the inclined side 172, the sludge can be concentrated on the arc side 171. The fixing rod 15 located at one end of the transmission component 5 is close to the arc side 171 during rotation, which can ensure that the sludge layer is fully dredged and avoid the risk of some impurities still being sucked up, which would increase the risk of blockage of the suction pipe 18.

[0036] Please see Figure 6 In one embodiment, the transmission assembly 5 further includes a side plate 51, a motor 52, a transmission belt 53, a fixed shaft 54, and a transmission roller 55. The transmission roller 55 is rotatably mounted on the inner side of the two side plates 51, and the transmission belt 53 is mounted on the surface of the transmission roller 55. The fixed shaft 54 ​​is fixedly mounted on the outer side of the side plate 51 and is rotatably mounted on the mounting block 6. The motor 52 is connected to one of the transmission rollers 55.

[0037] In this embodiment, the drive assembly 8 includes a drive gear 82 and a driven gear 81. The drive gear 82 and the driven gear 81 are meshed and connected. The driven gear 81 is fixedly mounted on the fixed shaft 54. The drive gear 82 can be directly driven by a stepper motor or a servo motor.

[0038] The transmission component 5 is a simple rotating structure of the transmission belt 53. The transmission component 5 may also include a tension roller. The rotation of the transmission roller 55 can drive the transmission belt 53 to rotate and move in position, thereby enabling the transmission of impurities.

[0039] Please see Figure 3 , Figure 4In one embodiment, a load-bearing plate 9 is fixedly installed at the output end of the telescopic member 7, and a second spring 10 is installed between the load-bearing plate 9 and the mounting block 6.

[0040] In this embodiment, the second spring 10 is provided to provide a certain buffer distance when the transmission component 5 encounters external force, thus preventing damage to the telescopic component 7.

[0041] Please see Figure 3 In one embodiment, the system further includes a filter plate sleeve 2 and an inner filter plate 3. An extension frame 20 is rotatably mounted on the fixed shaft 54. The filter plate sleeve 2 is rotatably mounted at one end of the extension frame 20 away from the fixed shaft 54. The inner filter plate 3 is slidably mounted inside the filter plate sleeve 2. A first spring 31 is installed between the inner filter plate 3 and the filter plate sleeve 2. A connecting rope 30 is installed between the inner filter plate 3 and the side plate 51.

[0042] In this embodiment, a limiting block 14 is fixedly installed on the bracket 11, and the limiting block 14 is in contact with one side of the extension frame 20.

[0043] By providing an extension frame 20, one end of the filter plate sleeve 2 can be connected to the fixed shaft 54. When the drive assembly 8 drives the fixed shaft 54 ​​and the side plate 51 to rotate, the connecting rope 30 on the side plate 51 pulls the inner filter plate 3, so that the inner filter plate 3 is always located directly below the conveyor belt 53 and maintains a certain distance to prevent impurities from falling instantly and gaining a large kinetic energy that could damage the surface of the hull 1 or cause the hull 1 to tilt. By providing the inner filter plate 3 and the filter plate sleeve 2 to receive the impurities, the kinetic energy of the impurities is reduced. After being pulled, the inner filter plate 3 and the filter plate sleeve 2 are tilted, which can guide the impurities. When the impurities move on the surface of the inner filter plate 3 and the filter plate sleeve 2, the sludge can pass through the inner filter plate 3 and the filter plate sleeve 2 and enter the second collection box 13.

[0044] Please see Figure 2 , Figure 6 In one embodiment, a side baffle 16 is fixedly installed on the side plate 51.

[0045] In this embodiment, by providing a side baffle 16, impurities on the conveyor belt 53 can be blocked, preventing them from detaching from the side of the conveyor belt 53 and falling back into the water due to wind force.

[0046] Please see Figure 1 In one embodiment, a first collection box 12 is also included, which is used to collect debris.

[0047] In this embodiment, when impurities move on the surface of the inner filter plate 3 and the filter plate sleeve 2, they will eventually enter the first collection box 12.

[0048] The working process of this invention is as follows: During dredging, the height of the mounting block 6 is first adjusted according to the water level of the silt. The adjustment process involves activating the telescopic component 7, which moves the mounting block 6 to the corresponding position. As the hull 1 moves, the water level of the silt at the bottom fluctuates. Therefore, the drive assembly 8 is activated, which drives the fixed shaft 54 ​​and the side plate 51 to rotate. This allows the fixed rod 15 at one end of the transmission assembly 5 to penetrate into the silt layer, with the end of the transmission assembly 5 positioned directly above the silt layer. When the drive assembly 8 rotates the fixed shaft 54 ​​and the side plate 51, the connecting rope 30 on the side plate 51 pulls the inner filter plate 3, ensuring that the inner filter plate 3 is always directly below the transmission belt 53 and maintains a certain distance. Then, the motor 52 is activated, causing the transmission belt 53 to rotate and the fixed rod 15 on the transmission belt 53 to penetrate into the silt layer to remove impurities, including branches, weeds, stones, and plastic waste. As the hull 1 moves, the impurities are cut... Rope 41 cuts the underwater silt layer by inserting the extension rod 40 and the cutting rope 41 into the silt layer. As the hull 1 continues to move, the cutting shovel 4 and the fixing rod 15 cut the silt layer into several blocks. At this time, the suction pipe 18 can easily suck up the silt and discharge it into the second collection box 13. During the dredging process, impurities will fall onto the surface of the conveyor belt 53 as the conveyor belt 53 rotates and falls from the other end of the conveyor assembly 5 onto the inner filter plate 3 and the filter plate sleeve 2. The inner filter plate 3 and the filter plate sleeve 2 are tilted after being pulled, which can guide the impurities. When the impurities move on the surface of the inner filter plate 3 and the filter plate sleeve 2, the silt can pass through the inner filter plate 3 and the filter plate sleeve 2 into the second collection box 13, while the impurities enter the first collection box 12. When the second collection box 13 is full, the hull 1 docks and transfers the collected silt. After the transfer is completed, it continues to move forward. The dredging structure in this invention is suitable for small rivers and can dock at any time.

[0049] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention, and no reference numerals in the claims should be construed as limiting the scope of the claims.

[0050] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A dredging device for river management, comprising a hull, a suction pipe, and a second collection box, wherein the suction pipe is connected to the second collection box, and the second collection box is mounted on the hull, characterized in that, It also includes a transmission component, a mounting block, a bracket, and a drive component. A bracket is fixedly mounted on one end of the hull, a mounting block is slidably mounted on the bracket, and a telescopic component is fixedly mounted on the bracket. The output end of the telescopic component is connected to the mounting block. A transmission component is rotatably mounted on the mounting block. The drive component is used to drive the entire transmission component to rotate. The transmission component includes a transmission belt, and several fixed rods are fixedly mounted on the transmission belt in a direction parallel to the horizontal. The several fixed rods fixedly mounted in the direction parallel to the horizontal form a group of fixed rods. Several groups of fixed rods are fixedly mounted in the conveying direction of the transmission belt. The several groups of fixed rods are used to salvage debris in the silt. A cutting shovel is rotatably mounted on one end of the transmission component near the water surface. A counterweight is fixedly installed inside the cutting shovel. Extension rods are fixedly installed at both ends of the cutting shovel. A cutting rope is fixedly installed between the extension rods. A suction pipe is installed through the side of the cutting shovel away from the cutting rope. The transmission assembly also includes side plates, a motor, a transmission belt, a fixed shaft, and transmission rollers. Transmission rollers are rotatably mounted on the inner sides of the two side plates, and a transmission belt is mounted on the surface of the transmission rollers. A fixed shaft is fixedly mounted on the outer side of the side plates, and the fixed shaft is rotatably mounted on a mounting block. The motor is connected to one of the transmission rollers. It also includes a filter plate sleeve and an inner filter plate. An extension frame is rotatably mounted on the fixed shaft. A filter plate sleeve is rotatably mounted on the end of the extension frame away from the fixed shaft. An inner filter plate is slidably mounted inside the filter plate sleeve. A first spring is installed between the inner filter plate and the filter plate sleeve. A connecting rope is installed between the inner filter plate and the side plate.

2. The dredging equipment for river management according to claim 1, characterized in that, The counterweight is composed of an arc-shaped side and an inclined side, with the arc-shaped side facing the transmission component.

3. The dredging equipment for river management according to claim 1, characterized in that, A load-bearing plate is fixedly installed at the output end of the telescopic component, and a second spring is installed between the load-bearing plate and the mounting block.

4. The dredging equipment for river management according to claim 1, characterized in that, A side baffle is fixedly installed on the side plate.

5. The dredging equipment for river management according to claim 1, characterized in that, It also includes a first collection box for collecting debris.

Citation Information

Patent Citations

  • River channel desilting device for water conservancy project

    CN118997260A