River dredging device

Abstract

The application discloses a river dredging device, which comprises a connecting assembly, a dredging vehicle and a first dredging assembly. The connecting assembly comprises a connecting rod, a fixed rod and a first rotating motor. The lower end of the connecting rod is rotationally connected with the upper end of the fixed rod. The upper end of the connecting rod is connected with a towing ship. The first rotating motor is located in the connecting rod and is used for driving the fixed rod to rotate back and forth. The lower end of the fixed rod is fixed with the dredging vehicle. The first dredging assembly is arranged at the front end of the vehicle body along the advancing direction of the towing ship. The first dredging assembly comprises a first mud pumping pipe, a first rotating rod and an agitating rod. The first rotating rod is located in the first mud pumping pipe. The agitating rod is fixedly connected with the first rotating rod and is located at the mud inlet of the first mud pumping pipe. The outer periphery of the first rotating rod is provided with a screw conveyor. The rear end of the first rotating rod is provided with a second rotating motor. The dredging device is rotated through the rotation of the fixed rod, so that the dredging device can dredge in multiple angles.

Description

Technical Field

[0001] This invention relates to the field of water conservancy and hydropower construction technology, and in particular to a river dredging device. Background Technology

[0002] In water conservancy projects, sand and silt continuously accumulate at the bottom of rivers, causing the riverbed to rise. Over time, this sediment buildup forms silt, leading to ecological pollution. Conventional dredging methods fall into two categories: one is to drain the river and then use a dredger to remove the silt, but this method is limited to the dry season and is time-consuming and labor-intensive; the second is to drive a dredger into the river and use its pumps to remove the silt from the riverbed, but due to the large size of dredgers, it is not suitable for small rivers. Therefore, a dredging device guided by a tractor-trailer has emerged in the current technology. However, this method has the following problems: the tractor-trailer can only travel in a straight line, resulting in incomplete dredging, and some hard silt with low water content or clumps of silt cannot be removed.

[0003] Therefore, in view of the above problems, this application proposes a river dredging device. Summary of the Invention

[0004] The main objective of this invention is to provide a river dredging device that solves the technical problems in the prior art where the dredging device cannot thoroughly remove silt due to the fact that the towing vessel can only travel in a straight line, and that some hard silt or clumps of silt with low water content cannot be pumped out.

[0005] To achieve the above objectives, the present invention provides a river dredging device, including a connecting assembly and a dredging vehicle: The connecting assembly includes a connecting rod, a fixed rod, and a first rotating motor. The lower end of the connecting rod is rotatably connected to the upper end of the fixed rod. The upper end of the connecting rod is connected to a tractor. The first rotating motor is located inside the connecting rod and is used to drive the fixed rod to reciprocate. The lower end of the fixed rod is fixed to a dredging vehicle. The dredging vehicle includes a first dredging component, a second dredging component, a sludge discharge component, and a vehicle body. The first dredging component is located at the front end of the vehicle body along the direction of travel of the tractor. The first dredging component includes a first sludge suction pipe, a first rotating rod, and a stirring rod. The first rotating rod is located inside the first sludge suction pipe. The stirring rod is fixedly connected to the first rotating rod and located at the sludge inlet of the first sludge suction pipe. An auger is arranged around the outer periphery of the first rotating rod. A second rotating motor is provided at the rear end of the first rotating rod. The second dredging component is located at the rear end of the vehicle body along the direction of travel of the tractor, and includes a second dredging pipe, which contains a dredging pump. The sludge removal assembly is located inside the sludge removal vehicle and is used to separate sludge and sand.

[0006] Furthermore, the mud discharge assembly includes a mud screen, a stone discharge box, and a mud collection box. The mud screen is mounted inside the vehicle body, the stone discharge box is located behind the mud screen, the mud screen is inclined towards the stone discharge box, and the mud collection box is located below the mud screen. The vehicle body is provided with a stone discharge port, and a baffle is provided at the stone discharge port. A first slider and a second slider are provided on both sides of the stone discharge box. A first slide rail and a second slide rail are respectively provided on the vehicle body at the positions corresponding to the first slider and the second slider. The first slider and the second slider are slidably connected to the first slide rail and the second slide rail, respectively. A return spring is provided below the first slider and the second slider. The baffle is slidably connected to the inner wall of the vehicle body on both sides. A first rack is provided on the side of the second slider corresponding to the baffle, and a second rack is provided on the baffle at the position corresponding to the first rack. A transmission gear is provided between the first rack and the second rack, and the transmission gear is rotatably connected to the vehicle body. The stone discharge box is inclined towards the stone discharge port.

[0007] Furthermore, a guide pipe is connected to the mud outlet of the first mud suction pipe. A second rotating rod and a third rotating motor are provided inside the guide pipe. A cutter is wound around the second rotating rod in the direction of the first mud suction pipe. The third rotating motor is used to drive the second rotating rod to rotate.

[0008] Furthermore, a cutterhead is provided at the mud inlet of the second mud suction pipe.

[0009] Furthermore, the top of the sludge dredging vehicle is provided with an installation hole at the position corresponding to the mud collection box, and a third mud suction pipe is provided in the installation hole. The third mud suction pipe is used to extract the sludge from the mud collection box.

[0010] Furthermore, the dredging vehicle also includes a movable component located below the vehicle body. The movable component includes a rotating disk, a chassis, and track wheels mounted on both sides of the chassis. The rotating disk is located between the vehicle body and the chassis.

[0011] Furthermore, the bottom of the stone discharge box is provided with filter holes, and a guide plate inclined towards the mud collection box is provided below the stone discharge box. A partition is provided between the stone discharge box and the mud collection box, and the guide plate is in contact with the partition. A groove is provided at the upper part of the partition corresponding to the position of the guide plate.

[0012] Furthermore, the mud screen is provided with mud guide plates on all sides. The mud guide plate located on the side of the stone discharge box is open. The mud guide plates on both sides of the mud screen that are in contact with the vehicle body are provided with column feet. The vehicle body is provided with a fixing column at the position corresponding to the column feet. A spring is provided between the column feet and the fixing column.

[0013] The beneficial effects of this invention are as follows: Compared with the prior art, this device is equipped with a connecting rod and a fixing rod. The rotation of the fixing rod drives the dredging device to rotate, allowing the dredging device to dredge silt from multiple angles. At the same time, a first dredging component and a second dredging component are provided. The first dredging component is equipped with a stirring rod and an auger. The stirring rod breaks up the clumps of silt so that the second dredging component behind it can be pulled out. At the same time, the auger can extract hard silt with low water content, thereby improving the efficiency of dredging work. Attached Figure Description

[0014] Figure 1 This is a perspective view of the river dredging device of the present invention; Figure 2 This is a diagram of the connection components of the river dredging device of the present invention; Figure 3 This is an internal view of the dredging vehicle of the river dredging device of the present invention; Figure 4 This is an internal view of the first dredging component of the river dredging device of the present invention; Figure 5 This is a diagram of the sludge removal component of the river dredging device of the present invention; Figure 6 This is a cross-sectional view of the dredging vehicle of the river dredging device of the present invention; Figure 7 The present invention relates to a river dredging device. Figure 6 Enlarged view of point A in the middle; Figure 8 This is a structural diagram of the stone discharge port of the river dredging device of the present invention; Figure 9 This is a diagram of the moving component of the river dredging device of the present invention.

[0015] Explanation of reference numerals in the attached drawings: 1. Connecting assembly; 2. Dredging vehicle; 3. Moving assembly; 11. Connecting rod; 12. Fixing rod; 21. First dredging assembly; 22. Second dredging assembly; 23. Vehicle body; 24. Sludge discharge assembly; 25. Cleaning pipe; 31. Rotating disc; 32. Chassis; 33. Track wheel; 211. First sludge suction pipe; 212. First rotating rod; 213. Agitating rod; 214. Screwdriver; 215. Sludge guide pipe; 216. Second rotating rod; 217. Cutter; 221. Second sludge suction pipe. 222. Cutterhead; 231. Stone discharge port; 232. Mounting hole; 233. Fixing column; 234. Water trough; 235. Partition plate; 236. Guide plate; 241. Mud screen; 242. Stone discharge box; 243. Mud collection box; 244. First slider; 245. Second slider; 246. Baffle; 247. Transmission gear; 248. First slide rail; 249. Second slide rail; 2441. First rack; 2461. Second rack; 2411. Mud guide plate; 2412. Column foot. Detailed Implementation

[0016] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of them. Unless otherwise specified, the embodiments and features in the embodiments of this application can be combined with each other. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0017] Furthermore, if the embodiments of the present invention involve descriptions such as "first" or "second", such descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated.

[0018] See Figures 1 to 9 .

[0019] The present invention discloses a river dredging device comprising a connecting assembly 1 and a dredging vehicle 2. The connecting assembly 1 includes a connecting rod 11, a fixed rod 12 and a first rotating motor. The lower end of the connecting rod 11 is rotatably connected to the upper end of the fixed rod 12. The upper end of the connecting rod 11 is connected to the tractor. The first rotating motor is located inside the connecting rod 11 and is used to drive the fixed rod 12 to reciprocate. The lower end of the fixed rod 12 is fixed to the dredging vehicle 2. The dredging vehicle 2 includes a first dredging component 21, a second dredging component 22, a sludge discharge component 24, and a vehicle body 23. The first dredging component 21 is located at the front end of the vehicle body 23 along the direction of travel of the tractor. The first dredging component 21 includes a first sludge suction pipe 211, a first rotating rod 212, and a stirring rod 213. The first rotating rod 212 is located inside the first sludge suction pipe 211. The stirring rod 213 is fixedly connected to the first rotating rod 212 and is located at the sludge inlet of the first sludge suction pipe 211. An auger 214 is arranged around the outer periphery of the first rotating rod 212. A second rotating motor is provided at the rear end of the first rotating rod 212. The second dredging component 22 is located at the rear end of the vehicle body 23 along the direction of travel of the tractor, and includes a second dredging pipe 221, which is equipped with a dredging pump. The sludge removal assembly 24 is located inside the sludge removal vehicle 2 and is used to separate sludge and sand.

[0020] This design allows the dredging device to rotate via the rotation of the fixed rod 12, enabling it to dredge silt from multiple angles. Simultaneously, a first dredging component 21 and a second dredging component 22 are provided. The first dredging component 21 is equipped with a stirring rod 213 and an auger 214. The stirring rod 213 breaks up the clumps of silt so that the second dredging component 22 can be pulled out from behind, while the auger 214 can extract hard silt with low water content, thus improving the efficiency of the dredging work.

[0021] In practice, the connecting rod 11 connects the dredging vehicle 2 to the tractor. The connecting rod 11 is equipped with a first rotating motor, which drives the fixed rod 12 to rotate. The rotation of the fixed rod 12 drives the dredging vehicle 2 to rotate, thus achieving multi-angle dredging. The first dredging component 21 is located at the front end of the vehicle body 23 along the direction of travel of the tractor. When the tractor starts to move, the stirring rod 213 of the first dredging component 21 stirs up the silt and displaces large pieces of sand and gravel to prevent them from blocking the first sludge suction pipe 211. The auger 214 in the first sludge suction pipe 211 guides the hard silt to the sludge discharge component 24, while the soft silt or silt with a high water content that cannot be pumped away by the auger 214 is pumped out by the second sludge suction pipe 221 at the rear.

[0022] In one embodiment, the mud discharge assembly 24 includes a mud screen 241, a stone discharge box 242, and a mud collection box 243. The mud screen 241 is installed inside the vehicle body 23. The stone discharge box 242 is located behind the mud screen 241. The mud screen 241 is inclined towards the stone discharge box 242. The mud collection box 243 is located below the mud screen 241. The vehicle body 23 is provided with a stone discharge port 231, and a baffle 246 is provided at the stone discharge port 231. The stone discharge box 242 has a first slider 244 and a second slider 245 on both sides. The vehicle body 23 has a first slide rail 248 and a second slide rail 249 corresponding to the positions of the first slider 244 and the second slider 245, respectively. The first slider 244 and the second slider 245 are slidably connected to the first slide rail 248 and the second slide rail 249, respectively. The first slider 244 and the second slider 245 are lower... Each side is equipped with a return spring; the baffle 246 is slidably connected to the inner wall of the vehicle body 23 on both sides; the second slider 245 is provided with a first rack 2441 on one side corresponding to the baffle 246, and the baffle 246 is provided with a second rack 2461 at the position corresponding to the first rack 2441. A transmission gear 247 is provided between the first rack 2441 and the second rack 2461, and the transmission gear 247 is rotatably connected to the vehicle body 23; the stone discharge box 242 is inclined towards the stone discharge port 231.

[0023] In practice, when the sludge is discharged onto the sludge screen 241 by the sludge suction pipe, the sludge passes through the screen holes and falls into the sludge collection box 243 below, while the sand and gravel are screened out. Due to the inclined setting of the sludge screen 241, the screened sand and gravel roll into the stone discharge box 242. When too much sand and gravel accumulates in the stone discharge box 242, the stone discharge box 242 slides downward. At this time, the first rack 2441 on the first slider 244 drives the transmission gear 247 to rotate. The transmission gear 247 drives the second rack 2461 to move. The second rack 2461 drives the baffle 246 to move upward, exposing the stone discharge port 231 of the vehicle body 23. At this time, the sand and gravel in the stone discharge box 242 roll out to the stone discharge port 231 and fall to the bottom of the river. After the sand and gravel are discharged, the return spring under the first slider 244 and the second slider 245 pushes the first slider 244 and the second slider 245 upward, causing the stone discharge box 242 and the baffle 246 to return to their original positions.

[0024] With this design, the sludge discharge component 24 automatically screens silt and gravel, and simultaneously achieves the function of automatic stone discharge. Compared with the conventional method that requires manual screening and then throwing the screened gravel into the river, this device has a high degree of automation and saves a lot of manpower. Compared with the dredging device disclosed in publication number CN111779057A, this device can perform sludge pumping, screening and stone discharge at the same time, which is more efficient.

[0025] In one embodiment, a mud guide pipe 215 is connected to the mud outlet of the first mud suction pipe 211. The mud guide pipe 215 is provided with a second rotating rod 216 and a third rotating motor. A cutter 217 is wound around the second rotating rod 216 in the direction of the first mud suction pipe 211. The third rotating motor is used to drive the second rotating rod 216 to rotate.

[0026] The installation of the first rotating motor, the second rotating motor, and the third rotating motor is common knowledge in the field and is not shown in the figures in this application for the purpose of concise description.

[0027] In one embodiment, a cutterhead 222 is provided at the inlet of the second sludge suction pipe 221. This design prevents the sludge suction pipe from being blocked by garbage and impurities.

[0028] In one embodiment, a mounting hole 232 is provided on the top of the dredging vehicle 2 at the position corresponding to the mud collection box 243. A third mud-drawing pipe is provided in the mounting hole 232, which is used to extract the sludge from the mud collection box 243. In a specific embodiment, the third mud-drawing pipe is connected to an external mud pump to extract the sludge from the mud collection box 243. With this design, it is usually necessary to pull the device back to the tractor after the mud collection box 243 is full during the dredging process, remove the mud collection box 243, empty the sludge, and then continue the dredging work. This method is inefficient. This device has a mounting hole 232 above the mud collection box 243, and the sludge can be directly extracted through the third mud-drawing pipe without interrupting the dredging work. The third mud-drawing pipe is described in a simplified manner in this application and is not shown in the figure.

[0029] In one embodiment, the dredging vehicle 2 further includes a moving assembly 3 located below the vehicle body 23. The moving assembly 3 includes a rotating disk 31, a chassis 32, and tracked wheels 33 mounted on both sides of the chassis 32. The rotating disk 31 is positioned between the vehicle body 23 and the chassis 32. This design allows the dredging vehicle 2 to operate via the tracked wheels 33 when a towing boat cannot be used during the dry season, while the rotating disk 31 allows the dredging vehicle 2 to rotate at multiple angles. In a specific implementation, a drive motor is also installed inside the rotating disk 31.

[0030] In one embodiment, the bottom of the stone discharge box 242 is provided with filter holes, and a guide plate 236 inclined towards the mud collection box 243 is provided below the stone discharge box 242. A partition plate 235 is provided between the stone discharge box 242 and the mud collection box 243, and the guide plate 236 contacts the partition plate 235. A slot is provided on the upper part of the partition plate 235 corresponding to the position of the guide plate 236. With this design, if the sand and gravel falling into the stone discharge box 242 contains too much silt, the silt will fall from the filter holes onto the guide plate 236 and return to the mud collection box 243 through the guide plate 236, preventing the silt from being discharged into the river channel again.

[0031] In one embodiment, the mud screen 241 is provided with mud guide plates 2411 on both sides. The mud guide plates 2411 located on one side of the stone discharge box 242 are open. Below the mud guide plates 2411 on both sides of the mud screen 241 that contact the vehicle body 23, there are column feet 2412. The vehicle body 23 is provided with fixing columns 233 at positions corresponding to the column feet 2412. A spring is provided between the column feet 2412 and the fixing columns 233. This design, by incorporating springs, causes the mud screen 241 to vibrate up and down due to the impact of the mud falling onto it, thus making the mud screening more thorough and improving screening efficiency.

[0032] In practice, the vehicle body 23 is equipped with water troughs 234 on both sides, and a cleaning pipe 25 is provided above the mud screen 241. The cleaning pipe 25 is connected to the water troughs 234, and a water pump is installed in the cleaning pipe 25. When the vehicle body 23 is working in the water, the water troughs 234 are in direct contact with the river water, and the cleaning pipe 25 can directly pump water to clean the mud screen 241 to prevent impurities from clogging the mesh or the silt from expanding the mesh after drying. When the vehicle body 23 is working during the dry season, the water troughs 234 can be connected to an external water supply tank.

[0033] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A river dredging device, comprising a tractor, characterized in that, It also includes a connecting component (1) and a sludge removal vehicle (2): The connecting assembly (1) includes a connecting rod (11), a fixing rod (12) and a first rotating motor. The lower end of the connecting rod (11) is rotatably connected to the upper end of the fixing rod (12). The upper end of the connecting rod (11) is connected to the tractor. The first rotating motor is located inside the connecting rod (11) and is used to drive the fixing rod (12) to rotate back and forth. The lower end of the fixing rod (12) is fixed to the dredging vehicle (2). The dredging vehicle (2) includes a first dredging component (21), a second dredging component (22), a mud discharge component (24), and a vehicle body (23). The first dredging component (21) is located at the front end of the vehicle body (23) along the direction of travel of the tractor. The first dredging component (21) includes a first mud suction pipe (211), a first rotating rod (212), and a stirring rod (213). The first rotating rod (212) is located inside the first mud suction pipe (211). The stirring rod (213) is fixedly connected to the first rotating rod (212) and located at the mud inlet of the first mud suction pipe (211). An auger (214) is arranged around the outer periphery of the first rotating rod (212). A second rotating motor is provided at the rear end of the first rotating rod (212). The second dredging component (22) is located at the rear end of the vehicle body (23) along the direction of travel of the tractor, and includes a second dredging pipe (221), which is equipped with a dredging pump. The sludge removal assembly (24) is located inside the sludge removal vehicle (2) and is used to separate sludge and sand. The mud discharge assembly (24) includes a mud screen (241), a stone discharge box (242), and a mud collection box (243). The mud screen (241) is installed inside the vehicle body (23). The stone discharge box (242) is located behind the mud screen (241). The mud screen (241) is inclined towards the stone discharge box (242). The mud collection box (243) is located below the mud screen (241). The vehicle body (23) is provided with a stone discharge port (231), and a baffle (246) is provided at the stone discharge port (231). A first slider (244) and a second slider (245) are provided on both sides of the stone discharge box (242). A first slide rail (248) and a second slide rail (249) are respectively provided on the vehicle body (23) at positions corresponding to the first slider (244) and the second slider (245). The first slider (244) and the second slider (245) are slidably connected to the first slide rail (248) and the second slide rail (249) respectively. 5) Each side is equipped with a return spring; the baffle (246) is slidably connected to the inner wall of the vehicle body (23) on both sides; the second slider (245) is provided with a first rack (2441) on one side of the baffle (246), and the baffle (246) is provided with a second rack (2461) at the position corresponding to the first rack (2441). A transmission gear (247) is provided between the first rack (2441) and the second rack (2461), and the transmission gear (247) is rotatably connected to the vehicle body (23); the stone discharge box (242) is inclined towards the stone discharge port (231); The bottom of the stone discharge box (242) is provided with filter holes. Below the stone discharge box (242) is a guide plate (236) that is inclined toward the mud collection box (243). A partition plate (235) is provided between the stone discharge box (242) and the mud collection box (243). The guide plate (236) is in contact with the partition plate (235). A slot is provided on the upper part of the partition plate (235) at the position corresponding to the guide plate (236).

2. The river dredging device as described in claim 1, characterized in that, The mud outlet of the first mud suction pipe (211) is connected to a mud guide pipe (215). The mud guide pipe (215) is provided with a second rotating rod (216) and a third rotating motor. The second rotating rod (216) is provided with a cutter (217) wound around it in the direction of the first mud suction pipe (211). The third rotating motor is used to drive the second rotating rod (216) to rotate.

3. The river dredging device as described in claim 1, characterized in that, The second mud suction pipe (221) is equipped with a cutterhead (222) at the mud inlet.

4. The river dredging device as described in claim 1, characterized in that, The top of the dredging vehicle (2) is provided with an installation hole (232) at the position corresponding to the mud collection box (243). A third mud suction pipe is provided in the installation hole (232) and the third mud suction pipe is used to extract the sludge from the mud collection box (243).

5. The river dredging device as described in claim 1, characterized in that, The dredging vehicle (2) also includes a moving component (3) located below the vehicle body (23). The moving component (3) includes a rotating disk (31), a chassis (32), and track wheels (33) installed on both sides of the chassis (32). The rotating disk (31) is located between the vehicle body (23) and the chassis (32).

6. The river dredging device as described in claim 1, characterized in that, The mud screen (241) is provided with mud guide plates (2411) on all sides. The mud guide plate (2411) located on one side of the stone discharge box (242) is open. The mud guide plates (2411) on both sides of the mud screen (241) that are in contact with the vehicle body (23) are provided with column feet (2412). The vehicle body (23) is provided with a fixed column (233) at the position corresponding to the column feet (2412). A spring is provided between the column feet (2412) and the fixed column (233).

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