A dredging device for river maintenance
By designing an adjustable pulley and lifting connecting plate for the dredging device, the problem that existing dredging devices cannot adapt to different river widths and depths is solved, achieving comprehensive dredging of the riverbed and improving the thoroughness of dredging.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- GUANGDONG BAWOFU ENVIRONMENTAL PROTECTION TECH CO LTD
- Filing Date
- 2026-06-09
- Publication Date
- 2026-07-17
AI Technical Summary
Existing dredging equipment for river maintenance cannot be flexibly adjusted according to the width and depth of the river, resulting in incomplete dredging in wider rivers and inability to operate normally in narrower rivers.
A dredging device comprising a horizontal plate, a movable block, pulleys, a lifting connecting plate, and an electric telescopic rod was designed. By adjusting the position of the pulleys and the lifting connecting plate, it can be adapted to different river widths and depths. Combined with the electric telescopic rod, the adaptability of the dredging device is achieved.
It achieves adaptation to the width and depth of the river channel, ensuring that the dredging device can cover the entire bottom of the river channel, improving the thoroughness of dredging, and avoiding operational obstacles caused by the mismatch of device size.
Smart Images

Figure CN224514300U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of river maintenance technology, and in particular relates to a dredging device for river maintenance. Background Technology
[0002] River regulation, also known as riverbed improvement, refers to engineering measures for controlling and modifying river channels. Erosion and siltation frequently occur in natural rivers, easily leading to water hazards and hindering water conservancy development. To meet the requirements of mitigating hazards and promoting benefits, appropriate measures must be taken to regulate river channels, including guiding, dredging, and bank protection engineering.
[0003] Existing dredging equipment for river maintenance uses traditional dredging equipment (such as stationary dredgers and long-arm excavators) for dredging operations. However, these dredging devices cannot be flexibly adjusted according to the different widths of the river. When facing a wider river, the dredging device is too small and cannot cover the entire riverbed, resulting in incomplete dredging in some areas. In a narrower river, the dredging device is too large and may not be able to operate normally, affecting the progress of the dredging work. Utility Model Content
[0004] This utility model provides a dredging device for river maintenance, which aims to solve the problems that when facing a wide river, the dredging device is too small and cannot cover the entire bottom of the river, resulting in incomplete dredging in some areas; while in a narrow river, the dredging device is too large and may not be able to operate normally.
[0005] This utility model is implemented as follows: a dredging device for river maintenance includes a horizontal plate, movable blocks are movably provided at both ends of the bottom of the horizontal plate, a connecting plate is movably provided at the bottom of each movable block, and pulleys that fit with the roads on both sides of the river are provided at both ends of the bottom of each connecting plate.
[0006] A mounting plate is provided in the middle of the horizontal plate in a height-adjustable manner, and connecting rods are detachably provided at both ends of the mounting plate. A dredging device is connected to the bottom of the connecting rods.
[0007] Preferably, the dredging device includes a dredging box, a drive box is provided on the top of the dredging box, and rotating shafts are rotatably provided at both ends of the inner cavity of the dredging box. The top ends of the two rotating shafts extend into the inner cavity of the drive box and are rotatably connected to its side wall. A guide plate is fixedly connected to the surface of each rotating shaft, and a guide plate is provided on the front side of the dredging box.
[0008] Preferably, a suction pipe is provided in the middle of the sludge removal box, a water pump is provided at the top of the horizontal plate, the water inlet of the water pump is connected to an inlet pipe, the inlet pipe is connected to the suction pipe, the water outlet of the water pump is connected to an outlet pipe, and collection boxes are provided at both ends of the top of the horizontal plate, with the outlet pipe connected to the collection boxes.
[0009] Preferably, a motor is vertically arranged inside the drive box, the output shaft of the motor is fixedly connected to one end of one of the rotating shafts, and the output shaft of the motor is connected to the surface of the other rotating shaft via a belt drive.
[0010] Preferably, the horizontal plate has a receiving groove, and a rotatable bidirectional threaded rod is provided in the receiving groove. Both ends of the surface of the bidirectional threaded rod are threaded with threaded sleeves. The movable block is fixedly connected to the surface of the threaded sleeves, and a handle is fixedly connected to one end of the bidirectional threaded rod.
[0011] Preferably, both the mounting plate and the connecting rod have a positioning groove at one end, which can be fixed by inserting a pin into the positioning groove.
[0012] Preferably, each of the movable blocks is vertically provided with a first electric telescopic rod at its bottom, and the bottom end of each first electric telescopic rod is fixedly connected to the upper part of the connecting plate. A second electric telescopic rod is vertically fixedly connected to the middle of the horizontal plate, and the bottom end of the second electric telescopic rod is fixedly connected to the upper part of the mounting plate.
[0013] Beneficial effects
[0014] Compared with the prior art, the beneficial effects of this utility model are as follows: This utility model provides a dredging device for river maintenance. Depending on the width of the river, by controlling the rotation of the handle, two movable plates move along the width of the horizontal plates, thereby moving the pulleys. It also allows for the replacement of suitable dredging devices to adapt to different river widths. Depending on the depth of the river, by controlling the cooperation between the first and second electric telescopic rods, dredging can be carried out on rivers of different depths. This avoids the problems of the dredging device being too small to cover the entire riverbed, or too large to operate properly in narrow rivers, thus achieving comprehensive dredging of the riverbed and improving the thoroughness of dredging. Attached Figure Description
[0015] Figure 1 This is a front structural diagram of the present invention;
[0016] Figure 2 This is a front cross-sectional view of the structure of this utility model;
[0017] Figure 3 This is a top view of the structure of this utility model;
[0018] Figure 4 This is a three-dimensional structural diagram of the dredging device in this utility model.
[0019] In the diagram: 1. Horizontal plate; 2. Connecting plate; 3. Pulley; 4. Movable block; 5. Road; 6. First electric telescopic rod; 7. Mounting plate; 8. Connecting rod; 9. Collection box; 10. Water outlet pipe; 11. Water pump; 12. Second electric telescopic rod; 13. Threaded sleeve; 14. Suction pipe; 15. Water inlet pipe; 16. Positioning groove; 17. Pin; 18. Drive box; 19. Sludge removal box; 20. Motor; 21. Rotating shaft; 22. Guide plate; 23. Guide plate; 24. Belt; 25. Handle; 26. Two-way threaded rod. Detailed Implementation
[0020] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.
[0021] Please see Figure 1-4 This utility model provides a technical solution: a dredging device for river maintenance, including a horizontal plate 1, movable blocks 4 are movably provided at both ends of the bottom of the horizontal plate 1, a connecting plate 2 is provided at the bottom of each movable block 4, and pulleys 3 are provided at both ends of the bottom of each connecting plate 2 to fit with the roads 5 on both sides of the river.
[0022] A mounting plate 7 is provided in the middle of the horizontal plate 1 in a height-adjustable manner. Connecting rods 8 are detachably provided at both ends of the mounting plate 7. A dredging device is connected to the bottom of the connecting rods 8.
[0023] In this embodiment, the operator controls the movement of the movable block 4 at the bottom of the horizontal plate 1 and adjusts the position of the pulley 3 so that the device can move along the roads 5 on both sides of the river to adapt to the construction and maintenance of river channels of different widths.
[0024] During the movement, pay attention to the operation of pulley 3 to ensure that it fits well with road 5 and avoid slippage or jamming.
[0025] The height of the dredging device is adjusted by controlling the lifting devices of the connecting plate 2 and the mounting plate 7, according to the depth of the river and the dredging requirements.
[0026] First, ensure that the pulley 3 fits tightly against the road 5 on both sides of the river to provide stable support. Then, adjust the height of the mounting plate 7 so that the dredging device can reach the appropriate dredging depth and ensure the dredging effect.
[0027] The dredging equipment can be replaced to adapt to river channels of different widths for maintenance and dredging.
[0028] Furthermore, the dredging device includes a dredging box 19, a drive box 18 is provided on the top of the dredging box 19, and rotating shafts 21 are rotatably provided at both ends of the inner cavity of the dredging box 19. The top ends of the two rotating shafts 21 extend into the inner cavity of the drive box 18 and are rotatably connected to its side wall. A guide plate 22 is fixedly connected to the surface of each rotating shaft 21. A guide plate 23 is provided on the front side of the dredging box 19. A suction pipe 14 is provided in the middle of the dredging box 19. A water pump 11 is provided on the top of the horizontal plate 1. The inlet of the water pump 11 is connected to an inlet pipe 15. The inlet pipe 15 is connected to the suction pipe 14. The outlet of the water pump 11 is connected to an outlet pipe 10. Collection boxes 9 are provided at both ends of the top of the horizontal plate 1. The outlet pipe 10 is connected to the collection box 9.
[0029] In this embodiment, the power to the drive box 18 is turned on, causing the rotating shaft 21 to start rotating, which in turn drives the guide plate 22 to rotate. The rotation of the guide plate 22 will generate a stirring effect, stirring up the silt at the bottom of the river. At the same time, the water pump 11 is started. The water pump 11 sucks the silt in the sludge removal box 19 through the suction pipe 14. After passing through the inlet pipe 15, the water pump 11 and the outlet pipe 10, the silt is finally transported to the collection box 9. During the sludge removal process, the operator should observe the suction of silt in the sludge removal box 19 and the accumulation of silt in the collection box 9. If the silt in the collection box 9 is close to full, the sludge removal operation should be stopped in time and the collection box 9 should be cleaned.
[0030] Furthermore, a motor 20 is vertically arranged inside the drive box 18. The output shaft of the motor 20 is fixedly connected to one end of a rotating shaft 21, and the output shaft of the motor 20 is connected to the surface of the other rotating shaft 21 by a belt 24.
[0031] In this embodiment, each rotating shaft 21 is provided with a pulley on its surface to ensure that they can rotate synchronously.
[0032] When river dredging is required, the motor 20 is started to drive one rotating shaft 21 to rotate. Since the other shaft is connected by a belt 24, it drives the other rotating shaft 21 to rotate, so that the two guide plates 22 rotate synchronously, thereby stirring up the silt.
[0033] Furthermore, the horizontal plate 1 has a receiving groove, and a rotatable bidirectional threaded rod 26 is provided in the receiving groove. Both ends of the surface of the bidirectional threaded rod 26 are threaded with threaded sleeves 13. The movable block 4 is fixedly connected to the surface of the threaded sleeves 13. One end of the bidirectional threaded rod 26 is fixedly connected with a handle 25.
[0034] In this embodiment, when it is necessary to clean the river channel of different widths, the double-threaded rod 26 is first rotated by turning the handle 25. Since the threads at both ends of the double-threaded rod 26 are opposite, the two threaded sleeves 13 will move in opposite directions as the double-threaded rod 26 rotates, thereby driving the movable block 4 to move laterally on the horizontal plate 1, making its width larger or smaller.
[0035] Furthermore, both the mounting plate 7 and the connecting rod 8 have a positioning groove 16 at one end, which can be fixed by inserting a pin 17 into the positioning groove 16.
[0036] In this embodiment, the disassembly structure of the technical solution can be replaced with other methods, as long as it is ensured that the dredging device can be replaced to adapt to different sizes of dredging devices for dredging rivers of different widths.
[0037] Furthermore, each of the movable blocks 4 is vertically provided with a first electric telescopic rod 6 at its bottom, and the bottom end of each first electric telescopic rod 6 is fixedly connected to the upper part of the connecting plate 2. A second electric telescopic rod 12 is vertically fixedly connected to the middle part of the horizontal plate 1, and the bottom end of the second electric telescopic rod 12 is fixedly connected to the upper part of the mounting plate 7.
[0038] In this embodiment, the cooperation between the first electric telescopic rod 6 and the second electric telescopic rod 12 ensures that it can be adapted to river channels of different heights for dredging.
[0039] The working principle and usage process of this utility model are as follows: After the utility model is installed, depending on the width of the river, the two movable blocks 4 are moved along the width direction of the horizontal plate 1 by controlling the rotating handle 25, thereby moving the pulley 3. The appropriate dredging device is replaced to adapt to the river with different widths. Depending on the depth of the river, the dredging is carried out on the river with different depths by controlling the cooperation between the first electric telescopic rod 6 and the second electric telescopic rod 12.
[0040] 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 and improvements 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 dredging device for river maintenance, comprising a horizontal plate (1), characterized in that: The bottom ends of the horizontal plate (1) are movably provided with movable blocks (4), and the bottom of each movable block (4) is provided with a connecting plate (2) that can be raised and lowered. The bottom ends of each connecting plate (2) are provided with pulleys (3) that fit with the roads (5) on both sides of the river. A mounting plate (7) is provided in the middle of the horizontal plate (1) in a height-adjustable manner. A connecting rod (8) is provided at both ends of the mounting plate (7), and a sludge removal device is connected to the bottom of the connecting rod (8).
2. The dredging device for river maintenance according to claim 1, characterized in that: The dredging device includes a dredging box (19), a drive box (18) is provided on the top of the dredging box (19), and rotating shafts (21) are rotatably provided at both ends of the inner cavity of the dredging box (19). The top ends of the two rotating shafts (21) extend into the inner cavity of the drive box (18) and are rotatably connected to its side wall. A guide plate (22) is fixedly connected to the surface of each rotating shaft (21), and a guide plate (23) is provided on the front side of the dredging box (19).
3. The dredging device for river maintenance according to claim 2, characterized in that: The sludge removal box (19) is provided with a suction pipe (14) in the middle, and a water pump (11) is provided at the top of the horizontal plate (1). The water inlet of the water pump (11) is connected to the water inlet pipe (15), and the water inlet pipe (15) is connected to the suction pipe (14). The water outlet of the water pump (11) is connected to the water outlet pipe (10). The top two ends of the horizontal plate (1) are provided with collection boxes (9), and the water outlet pipe (10) is connected to the collection box (9).
4. The dredging device for river maintenance according to claim 2, characterized in that: The drive box (18) has a motor (20) vertically arranged inside. The output shaft of the motor (20) is fixedly connected to one end of a rotating shaft (21). The output shaft of the motor (20) is connected to the surface of the other rotating shaft (21) by a belt (24).
5. A dredging device for river maintenance as described in claim 1, characterized in that: The horizontal plate (1) has a receiving groove, and a rotatable bidirectional threaded rod (26) is provided in the receiving groove. Both ends of the surface of the bidirectional threaded rod (26) are threaded with threaded sleeves (13). The movable block (4) is fixedly connected to the surface of the threaded sleeves (13). One end of the bidirectional threaded rod (26) is fixedly connected with a handle (25).
6. The dredging device for river maintenance according to claim 1, characterized in that: Both the mounting plate (7) and the connecting rod (8) have a positioning groove (16) at one end, which can be fixed by inserting a pin (17) into the positioning groove (16).
7. The dredging device for river maintenance according to claim 1, characterized in that: Each of the movable blocks (4) is vertically provided with a first electric telescopic rod (6) at its bottom. The bottom end of each first electric telescopic rod (6) is fixedly connected to the upper part of the connecting plate (2). A second electric telescopic rod (12) is vertically fixedly connected to the middle part of the horizontal plate (1). The bottom end of the second electric telescopic rod (12) is fixedly connected to the upper part of the mounting plate (7).