A dredging device for hydraulic engineering construction

Abstract

A dredging device for water conservancy engineering construction, when it is necessary to clean the silt on the riverbed, has a traction mechanism that can float on the water surface, and a fixed mechanism that is submerged in the water. The traction mechanism and the fixed mechanism are connected by a first traction rope. Then, the dredging mechanism on the fixed mechanism cleans the silt on the riverbed. During the cleaning process, the fixed mechanism can also be fixed to the riverbed to prevent the dredging mechanism from drifting with the water flow. The float box is pulled to both sides by a second traction rope. The float box moves with the first traction rope. The first traction rope can move within the first L-shaped slide rail through a first shaft until it moves to the side wall of the float box. After the fixed mechanism and the dredging mechanism float on the water surface, it is easier to remove the silt from the dredging mechanism.

Description

Technical Field

[0001] This invention relates to the field of water conservancy engineering technology, specifically to a dredging device for water conservancy engineering construction. Background Technology

[0002] Water conservancy projects are a general term for various engineering constructions undertaken to control, utilize, and protect surface and underground water resources and the environment. Dredging devices used in water conservancy projects typically refer to the mechanical equipment used to blow and stir up silt deposited on the riverbed into turbid water, which is then carried away by the river water, thereby playing a role in dredging. Siltation has increasingly affected the normal functioning of various functions such as flood control, drainage, irrigation, water supply, and navigation, so dredging is very important.

[0003] Chinese invention patent CN113863414A discloses a dredging device for water conservancy projects. This invention relates to the field of lithium battery production equipment technology. The dredging device includes a sewage pipe and a suction head, with the suction head installed at the bottom of the sewage pipe. The suction head includes a top and a bottom section of the sewage pipe.

[0004] A pulverizing device is installed at the bottom of the suction pipe, and mounting rods with an arc shape are provided on both sides of the bottom of the suction pipe. The mounting rods are equipped with rollers. An opening and a limiting hole are provided at the bottom of the discharge pipe, and a fixing rod is provided at the top of the suction pipe. The fixing rod is installed in the limiting hole through the opening. A first fixing plate and a second fixing plate are respectively provided on both sides of the limiting hole. The first fixing plate and the second fixing plate are connected by a connecting rod, on which a spring is installed. This invention prevents debris from accumulating at the suction head opening by providing mounting rods, and pulverizes weeds, branches, and other debris by providing a pulverizing device, preventing debris from accumulating at the suction head. The internal blockage is mitigated by a shock-absorbing device formed by the cooperation of a fixed rod, connecting rod, and spring, reducing the impact of vibration on the sewage pipe. However, its shortcomings are: 1. Existing dredging devices collect riverbed silt by extraction, but this method is difficult to remove gravel or larger stones from the riverbed, resulting in incomplete cleaning; 2. The extracted silt is not filtered to separate larger solids from the silt, requiring filtration before use as fertilizer, increasing operating costs. Summary of the Invention

[0005] The purpose of this invention is to provide a dredging device for water conservancy engineering construction.

[0006] The objective of this invention is achieved through the following technical solution, which includes two traction mechanisms, two first traction ropes, two fixing mechanisms, and a dredging mechanism;

[0007] Both of the aforementioned traction mechanisms can float on the water surface. The two aforementioned fixed mechanisms are respectively fixed to the two traction mechanisms below by two first traction ropes and can be submerged in the water and fixed to the bottom. The two aforementioned fixed mechanisms can be raised or lowered by the two traction mechanisms. The dredging mechanism can be rotatably installed between the two fixed mechanisms.

[0008] Both of the aforementioned traction mechanisms include a float, an L-shaped slide rail, a first shaft, two first plates, a second shaft, a first motor, a second plate, a second traction rope, and a hook;

[0009] The L-shaped slide rail is fixed to the lower end face of the pontoon and extends to the opposite side wall of the pontoon. The side of the L-shaped slide rail away from the pontoon has a first opening. The first shaft is slidably installed in the L-shaped slide rail. One end of the first traction rope passes through the first opening and is fixed to the first shaft. The other end of the first traction rope is fixed to the fixing mechanism. Both first plates are fixed to the side of the pontoon away from the L-shaped slide rail. A second shaft is rotatably installed between the two first plates. One end of the second shaft is fixed to the power output shaft of the first motor. The first motor is fixed to the side wall of the first plate through the second plate. One end of the second traction rope is fixed to the second shaft and located between the two first plates. The other end of the second traction rope is fixed to a hook.

[0010] Furthermore, the dredging mechanism includes a fixed box, a third plate, two first moving units, a fourth plate, two second moving units, two first hydraulic rods, two first connecting rods, a conveyor belt, a material digging frame, a collection box, two second hydraulic rods, two first fixed blocks, two springs, two second fixed blocks, a screen plate, a second motor, and a cam.

[0011] The fixed box is fixed between two fixed mechanisms. The upper end face of the fixed box has a second opening that extends to the lower end face. The third plate is slidably mounted on the upper end face of the fixed box. The sliding direction of the third plate is perpendicular to the lifting direction of the fixed mechanism. The third plate can cover the second opening. The two first moving units are respectively fixed to the side wall of the third plate near the fixed mechanism. The fourth plate is slidably mounted on the lower end face of the fixed box. The sliding direction of the fourth plate is perpendicular to the lifting direction of the fixed mechanism. The fourth plate can cover the second opening. The two second moving units are respectively fixed to the side wall of the fourth plate near the fixed mechanism.

[0012] Two first hydraulic rods are fixedly connected to the side wall of the fixed box near the fixed mechanism, with the telescopic ends of the two first hydraulic rods pointing vertically downwards. Two first connecting rods are fixedly connected to the telescopic ends of the two first hydraulic rods. The conveyor belt is fixedly connected between the two first connecting rods. The digging frame is fixedly connected to the conveyor belt. The collecting box is slidably mounted on the upper surface of the fourth plate and located on the side where the digging frame flips to discharge material. The upper surface of the collecting box has an opening. Two second hydraulic rods are fixedly connected to the upper surface of the collecting box, with the telescopic ends of the two second hydraulic rods pointing vertically upwards. Two first fixing blocks are fixedly connected to the telescopic ends of the two second hydraulic rods. The upper surface of the two first fixing blocks has an opening. One end of each of the two springs is fixedly connected to the upper surface of the two first fixing blocks. The other end of each of the two springs is fixedly connected to a second fixing block. A screen plate is fixedly connected to the upper surface of each of the two second fixing blocks. The screen plate is slidably installed inside the collecting box. The second motor is fixedly connected to the lower surface of the screen plate. The cam is fixedly connected to the power output shaft of the second motor and can cooperate with the screen plate.

[0013] Furthermore, both first moving units include a third fixed block, a fifth plate, a first threaded rod, a third motor, and a sixth plate;

[0014] The third fixing block is fixed to the side wall of the third plate near the fixing mechanism, the fifth plate is fixed to the side wall of the fixing box near the fixing mechanism, one end of the first threaded rod is rotatably mounted on the fifth plate, the other end of the first threaded rod is threaded to the third fixing block and then fixed to the power output shaft of the third motor, and the third motor is fixed to the side wall of the fixing box through the sixth plate.

[0015] Furthermore, each of the second moving units includes a fourth fixed block, a seventh plate, a second threaded rod, a fourth motor, and an eighth plate;

[0016] The fourth fixing block is fixed to the side wall of the third plate near the fixing mechanism, the seventh plate is fixed to the side wall of the fixing box near the fixing mechanism, one end of the second threaded rod is rotatably mounted on the seventh plate, the other end of the second threaded rod is threaded to the fourth fixing block and then fixed to the power output shaft of the fourth motor, and the fourth motor is fixed to the side wall of the fixing box through the eighth plate.

[0017] Furthermore, the dredging mechanism also includes a packing unit, which includes a first box, a fifth shaft, a fifth motor, a ninth plate, a first cover plate, a sixth shaft, a sixth motor, a tenth plate, a second cover plate, two third hydraulic rods, two first locking blocks, a water pump, two first handles, two second locking blocks, two fourth hydraulic rods, two support blocks, two fifth hydraulic rods, two eleventh plates, a second box, and a sealing assembly.

[0018] The first box is slidably mounted on the upper surface of the fourth plate, located near the collection box and away from the conveyor belt. The upper surface of the first box has an opening. The fifth shaft is rotatably mounted inside the first box, with one end fixedly connected to the power output shaft of the fifth motor. The fifth motor is fixedly connected to the side wall of the first box via the ninth plate. The first cover plate is fixedly connected to the fifth shaft and located inside the first box. The sixth shaft is rotatably mounted inside the first box, with one end fixedly connected to the power output shaft of the sixth motor. The sixth motor is fixedly connected to the side wall of the first box via the tenth plate. The second cover plate is fixedly connected to the sixth shaft and located inside the first box. Inside the box, the first cover plate and the second cover plate can block the opening on the upper surface of the first box. The fixed box has first slots on both sides near the two fixed mechanisms. The two third hydraulic rods are fixed to the inner side wall of the fixed box and are located near the first slots. The telescopic ends of the third hydraulic rods face the first slots. The telescopic ends of the two third hydraulic rods are respectively fixed to two first blocks. The first blocks are detachably connected to the first slots. The water pump is fixed to the side wall of the fixed box near the first box. The water pump inlet is located inside the fixed box and the outlet is located outside the fixed box. The two first handles are respectively fixed to the outer side wall of the first box.

[0019] The fixed box has second slots on both sides near the interior of the two fixed mechanisms. The second slots are located above the first slots. The two second blocks can be detachably connected to the two second slots. The telescopic ends of the two fourth hydraulic rods are fixed to the side of the two second blocks away from the second slots. The end of the fourth hydraulic rod away from the second block is fixedly connected to a support block. Two fifth hydraulic rods are fixedly connected to the upper surface of the two support blocks. The telescopic ends of the two fifth hydraulic rods face the conveyor belt. Two eleventh plates are fixedly connected to the telescopic ends of the two fifth hydraulic rods. The second box is fixed to the opposite sidewalls of the two eleventh plates. The lower surface of the second box has an opening. The sealing component is rotatably installed at the opening and can block the opening.

[0020] Furthermore, the enclosed assembly includes a seventh shaft, a first gear, a third cover plate, a rack, a connecting plate, a sixth hydraulic rod, and two second handles;

[0021] The seventh shaft is rotatably installed inside the second box. One end of the seventh shaft is fixedly connected to the first gear. The third cover plate is fixedly connected to the seventh shaft and located inside the second box. The third cover plate can block the opening on the lower end face of the second box. A sliding groove is opened on the side of the second box near the first gear. The rack is slidably installed on the sliding groove and can mesh with the first gear. The connecting plate is fixedly connected to the lower end face of the rack. The sixth hydraulic rod is fixedly connected to the side wall of the second box. The telescopic end of the sixth hydraulic rod is fixedly connected to the connecting plate. The two second handles are fixedly connected to both sides of the second box.

[0022] Furthermore, both of the aforementioned fixing mechanisms include a cylinder, a fixed barrel, a seventh motor, a second gear, a first support plate, two first fixing plates, an eighth shaft, an eighth motor, and a second support plate;

[0023] The cylinder is fixed to the outer wall of the fixed box and located between the first moving unit and the second moving unit. The end of the cylinder away from the side wall of the fixed box is rotatably connected to a fixed barrel. The seventh motor is fixed to the upper end face of the fixed barrel. The power output of the seventh motor faces one side of the fixed box. A second gear is fixed to the power output shaft of the seventh motor. The second gear can mesh with a gear rail opened on the cylinder. The gear rail is located between the fixed box and the fixed barrel. The first support plate is fixed to the side wall of the fixed barrel away from the cylinder. Both first fixed plates are fixed to the upper end face of the first support plate. The eighth shaft is rotatably installed between the two first fixed plates. One end of the eighth shaft is fixed to the power output shaft of the eighth motor. The eighth motor is fixed to the side wall of the first fixed plate through the second support plate. The end of the first traction rope away from the first shaft is fixed to the eighth shaft and located between the two first fixed plates.

[0024] Furthermore, the fixing mechanism also includes a positioning unit, which includes two second fixing plates, a ninth shaft, a ninth motor, a third support plate, a worm gear, a third threaded rod, and a turbine.

[0025] Both second fixed plates are fixed to the lower end face of the first support plate. The ninth shaft is rotatably mounted between the two second fixed plates. One end of the ninth shaft is fixed to the power output shaft of the ninth motor. The ninth motor is fixed to the side wall of the second fixed plate through the third support plate. The worm gear is sleeved on the ninth shaft and is located between the two second fixed plates. The third threaded rod is rotatably mounted on the lower end face of the first support plate. A turbine is sleeved on the third threaded rod and can mesh with the worm gear.

[0026] Because of the adoption of the above technical solution, the present invention has the following advantages:

[0027] 1. Pull the pontoon to both sides with the second traction rope. The pontoon moves with the first traction rope. The first traction rope can move within the first L slide rail through the first shaft until it moves to the side wall of the pontoon. This allows the fixing mechanism and dredging mechanism to float on the water surface, making it easier to remove the silt from the dredging mechanism.

[0028] 2. The second bin can not only collect silt but also push gravel and debris into the first bin, improving the utilization rate of the second bin. The fixed mechanism drives the entire fixed bin to rotate, allowing the silt in the collection bin to flow quickly into the second bin. By adjusting the rotation speed of the fixed bin, centrifugal force and cam drive the screen plate to vibrate, making the silt flow into the second bin even faster. The first bin collects gravel and debris, while the second bin collects silt, making it easier to directly recycle silt or gravel in the later stages.

[0029] 3. Fixing the dredging mechanism to the riverbed via the third threaded rod not only makes it more stable during dredging, but also improves stability when driving the fixed box to rotate in the river water, preventing the second gear from failing to drive the cylinder to rotate the fixed box.

[0030] Other advantages, objectives, and features of the invention will be set forth in part in the description which follows, and in part will be apparent to those skilled in the art from the following examination, or may be learned from practice of the invention. The objectives and other advantages of the invention can be realized and obtained from the following description and claims. Attached Figure Description

[0031] The accompanying drawings of this invention are described below.

[0032] Figure 1 This is a schematic diagram of the structure of the present invention;

[0033] Figure 2 yes Figure 1 A magnified view of detail A;

[0034] Figure 3 A three-dimensional structural diagram of the dredging mechanism;

[0035] Figure 4 This is a schematic diagram of the three-dimensional structure of the packaging unit;

[0036] Figure 5 A three-dimensional structural diagram of the fifth motor, the ninth plate, the first cover plate, the sixth shaft, the sixth motor, the tenth plate, and the second cover plate;

[0037] Figure 6 This is a schematic diagram of the structure of a closed component;

[0038] Figure 7 This is a structural diagram of the fixed box and the water pump;

[0039] Figure 8 This is a three-dimensional structural diagram of a cylinder, a fixed barrel, a seventh motor, and a second gear.

[0040] In the diagram: 1. Traction mechanism; 2. First traction rope; 3. Fixing mechanism; 4. Dredging mechanism; 5. Float; 6. L-shaped slide rail; 7. First shaft; 8. First plate; 9. Second shaft; 10. First motor; 11. Second plate; 12. Second traction rope; 13. Hook; 14. Fixing box; 15. Third plate; 16. First moving unit; 17. Fourth plate; 18. Second moving unit; 19. First hydraulic rod; 20. First connecting rod; 21. Conveyor belt; 22. Digging frame; 23. Collection. 24. Box; 25. Second hydraulic rod; 26. First fixing block; 27. Spring; 28. Second fixing block; 29. ​​Screen plate; 30. Second motor; 31. Cam; 32. Second opening; 33. Third fixing block; 34. Fifth plate; 35. First threaded rod; 36. Third motor; 37. Sixth plate; 38. Fourth fixing block; 39. Seventh plate; 40. Second threaded rod; 41. Fourth motor; 42. Eighth plate; 43. First box; 44. Fifth shaft; 45. Fifth motor; 4 6. Ninth plate; 47. First cover plate; 48. Sixth shaft; 49. Sixth motor; 50. Tenth plate; 51. Second cover plate; 52. Third hydraulic rod; 53. First locking block; 54. Water pump; 55. First handle; 56. Second locking block; 57. Fourth hydraulic rod; 58. Support block; 59. Fifth hydraulic rod; 60. Eleventh plate; 61. Second box; 62. Enclosure assembly; 63. First slot; 64. Second slot; 65. Seventh shaft; 66. First gear; 68. Third cover plate 69. Rack; 70. Connecting plate; 71. Sixth hydraulic rod; 72. Second handle; 73. Slide groove; 74. Cylinder; 75. Fixed barrel; 76. Seventh motor; 77. Second gear; 78. First support plate; 79. First fixed plate; 80. Eighth shaft; 81. Eighth motor; 82. Second support plate; 83. Positioning unit; 84. Second fixed plate; 85. Ninth shaft; 86. Ninth motor; 87. Third support plate; 88. Worm gear; 89. Third threaded rod; 90. Turbine. Detailed Implementation

[0041] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0042] In the description of the embodiments of the present invention, it should be noted that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the embodiments of the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. In the description of the embodiments of the present invention, it should be noted that unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of the present invention based on the specific circumstances.

[0043] like Figure 1 As shown, a dredging device for water conservancy engineering construction includes two traction mechanisms 1, two first traction ropes 2, two fixing mechanisms 3, and a dredging mechanism 4;

[0044] Both of the aforementioned traction mechanisms 1 can float on the water surface. The two aforementioned fixed mechanisms 3 are respectively fixed to the two traction mechanisms 1 below by two first traction ropes 2, and can be submerged in the water and fixed to the bottom. The two aforementioned fixed mechanisms 3 can be raised or lowered by the two traction mechanisms 1. The dredging mechanism 4 can be rotatably installed between the two fixed mechanisms 3.

[0045] Both of the aforementioned traction mechanisms 1 include a float box 5, an L-shaped slide rail 6, a first shaft 7, two first plates 8, a second shaft 9, a first motor 10, a second plate 11, a second traction rope 12, and a hook 13;

[0046] The L-slide rail 6 is fixed to the lower end face of the float 5 and extends to the opposite side wall of the float 5. The L-slide rail 6 has a first opening on the side away from the float 5. The first shaft 7 is slidably installed in the L-slide rail 6. One end of the first traction rope 2 passes through the first opening and is fixed to the first shaft 7. The other end of the first traction rope 2 is fixed to the fixing mechanism 3. Both first plates 8 are fixed to the side of the float 5 away from the L-slide rail 6. A second shaft 9 is rotatably installed between the two first plates 8. One end of the second shaft 9 is fixed to the power output shaft of the first motor 10. The first motor 10 is fixed to the side wall of the first plate 8 through the second plate 11. One end of the second traction rope 12 is fixed to the second shaft 9 and located between the two first plates 8. The other end of the second traction rope 12 is fixed to a hook 13.

[0047] In this embodiment, when it is necessary to clean the silt on the bottom of the river, the traction mechanism can float on the water surface, and the fixing mechanism is submerged in the water. The traction mechanism and the fixing mechanism are connected by the first traction rope. Then, the silt on the bottom of the river is cleaned by the dredging mechanism on the fixing mechanism. During the cleaning process, the fixing mechanism can also be fixed to the bottom of the river to prevent the dredging mechanism from moving with the water flow.

[0048] When it is necessary to remove the silt collected and stored in the dredging mechanism, the hook on the second traction rope is fixed to the shore, and then the second shaft is driven to rotate by the first motor. When the second shaft rotates, it winds the second traction rope onto the second shaft. As the second shaft rotates and collects the second traction rope, it also moves the pontoon closer to the hook. At this time, the fixing mechanism also begins to move a distance towards the water surface by collecting the first traction rope. When the pontoon moves to both sides, the first shaft in the L-shaped slide rail on the pontoon is pulled by the first traction rope and is located below the pontoon. The first sliding shaft on the end face will slide to the opposite side wall of the pontoon via the L-slide rail. At this time, when the first traction rope is pulled to both sides by the pontoon, the fixing mechanism and the dredging mechanism will be stretched to the horizontal plane, making it easier to remove the silt from the dredging mechanism. The pontoon is pulled to both sides by the second traction rope, and the pontoon moves with the first traction rope. The first traction rope can move within the first L-slide rail through the first shaft until it moves to the side wall of the pontoon, so that the fixing mechanism and the dredging mechanism can float on the water surface, making it easier to remove the silt from the dredging mechanism.

[0049] like Figure 1 , Figure 3 As shown, the dredging mechanism 4 includes a fixed box 14, a third plate 15, two first moving units 16, a fourth plate 17, two second moving units 18, two first hydraulic rods 19, two first connecting rods 20, a conveyor belt 21, a digging frame 22, a collection box 23, two second hydraulic rods 24, two first fixing blocks 25, two springs 26, two second fixing blocks 27, a screen plate 28, a second motor 29, and a cam 30.

[0050] The fixed box 14 is fixed between two fixed mechanisms 3. The upper end face of the fixed box 14 has a second opening 31 that extends to the lower end face. The third plate 15 is slidably mounted on the upper end face of the fixed box 14. The sliding direction of the third plate 15 is perpendicular to the lifting direction of the fixed mechanism 3. The third plate 15 can cover the second opening 31. The two first moving units 16 are respectively fixed on the side wall of the third plate 15 near the fixed mechanism 3. The fourth plate 17 is slidably mounted on the lower end face of the fixed box 14. The sliding direction of the fourth plate 17 is perpendicular to the lifting direction of the fixed mechanism 3. The fourth plate 17 can cover the second opening 31. The two second moving units 18 are respectively fixed on the side wall of the fourth plate 17 near the fixed mechanism 3.

[0051] Two first hydraulic rods 19 are respectively fixed to the side wall of the fixed box 14 near the fixed mechanism 3, with the telescopic ends of the two first hydraulic rods 19 pointing vertically downwards. Two first connecting rods 20 are respectively fixed to the telescopic ends of the two first hydraulic rods 19. The conveyor belt 21 is fixed between the two first connecting rods 20. The digging frame 22 is fixed to the conveyor belt 21. The collecting box 23 is slidably disposed on the upper surface of the fourth plate 17 and located on the side where the digging frame 22 flips to discharge material. The upper surface of the collecting box 23 has an opening. Two second hydraulic rods 24 are both fixed to the upper surface inside the collecting box 23. The two second hydraulic rods 24 extend... The retracted end faces vertically upward. The two first fixing blocks 25 are respectively fixed to the telescopic ends of the two second hydraulic rods 24. The upper end face of the two first fixing blocks 25 is provided with an opening. One end of the two springs 26 is respectively fixed to the upper end face inside the two first fixing blocks 25. The other end of the two springs 26 is respectively fixed to the second fixing block 27. The upper end face of the two second fixing blocks 27 is fixed to the screen plate 28. The screen plate 28 is slidably installed in the collection box 23. The second motor 29 is fixed to the lower end face of the screen plate 28. The cam 30 is fixed to the power output shaft of the second motor 29. The cam 30 can cooperate with the screen plate 28.

[0052] In this embodiment, when the dredging mechanism begins to clean the riverbed silt, the second moving unit drives the fourth plate to slide away from the conveyor belt. After sliding a certain distance, the first hydraulic rod drives the connecting rod to descend. As the connecting rod descends, it drives the conveyor belt to descend as well. When the conveyor belt descends and contacts the riverbed silt, it begins to rotate, causing the shovel frame to continuously shovel the riverbed silt and pour it into the collection box. After the silt is poured into the collection box by the shovel frame, it first passes through a screen plate for screening, filtering out larger stones or impurities. When the silt is on the screen plate, the second motor drives the cam to rotate, and the cam continuously strikes the screen plate to achieve... The continuous vibration of the screen plate makes sludge filtration faster and more efficient. The second hydraulic rod drives the first fixed block to move. When the first fixed block moves, it drives the internal spring to move. When the spring moves, it drives the second fixed block to move. The movement of the second fixed block causes the screen plate to move up and down in the collection box. The spring makes the screen plate vibrate more easily, improving the vibration efficiency. After cleaning, the third sliding movement can be driven by the first moving unit to remove the sludge collected in the fixed box. The cam drives the screen plate to vibrate and filter the sludge, making it more convenient to use the sludge later.

[0053] like Figure 1 As shown, both first moving units 16 include a third fixing block 32, a fifth plate 33, a first threaded rod 34, a third motor 35, and a sixth plate 36;

[0054] The third fixing block 32 is fixedly connected to the side wall of the third plate 15 near the fixing mechanism 3, and the fifth plate 33 is fixedly connected to the side wall of the fixing box 14 near the fixing mechanism 3. One end of the first threaded rod 34 is rotatably mounted on the fifth plate 33, and the other end of the first threaded rod 34 is threadedly connected to the third fixing block 32 and then fixedly connected to the power output shaft of the third motor 35. The third motor 35 is fixedly connected to the side wall of the fixing box 14 through the sixth plate 36.

[0055] In this embodiment, when it is necessary to drive the third plate to move on the upper surface of the fixed box, the third motor drives the first threaded rod to rotate. Since the third fixed block is threadedly connected to the first threaded rod, when the first threaded rod rotates, it will drive the third fixed block to move. When the third fixed block moves, it will also drive the third plate to slide on the upper surface of the fixed box.

[0056] like Figure 1 As shown, each of the second moving units 18 includes a fourth fixing block 37, a seventh plate 38, a second threaded rod 39, a fourth motor 40, and an eighth plate 41;

[0057] The fourth fixing block 37 is fixedly connected to the side wall of the third plate 15 near the fixing mechanism 3, the seventh plate 38 is fixedly connected to the side wall of the fixing box 14 near the fixing mechanism 3, one end of the second threaded rod 39 is rotatably mounted on the seventh plate 38, and the other end of the second threaded rod 39 is threadedly connected to the fourth fixing block 37 and then fixedly connected to the power output shaft of the fourth motor 40. The fourth motor 40 is fixedly connected to the side wall of the fixing box 14 through the eighth plate 41.

[0058] In this embodiment, when it is necessary to drive the fourth plate to move on the lower end face of the fixed box, the fourth motor drives the second threaded rod to rotate. Since the fourth fixed block is threadedly connected to the second threaded rod, when the second threaded rod rotates, it will drive the fourth fixed block to move. When the fourth fixed block moves, it will also drive the fourth plate to slide on the lower end face of the fixed box.

[0059] like Figure 4 , Figure 5 , Figure 7 As shown, the dredging mechanism 4 also includes a packing unit 42, which includes a first box 43, a fifth shaft 44, a fifth motor 45, a ninth plate 46, a first cover plate 47, a sixth shaft 48, a sixth motor 49, a tenth plate 50, a second cover plate 51, two third hydraulic rods 52, two first locking blocks 53, a water pump 54, two first handles 55, two second locking blocks 56, two fourth hydraulic rods 57, two support blocks 58, two fifth hydraulic rods 59, two eleventh plates 60, a second box 61, and a sealing assembly 62.

[0060] The first box 43 is slidably mounted on the upper surface of the fourth plate 17 and located on the side near the collection box 23 away from the conveyor belt 21. The upper surface of the first box 43 has an opening. The fifth shaft 44 is rotatably mounted inside the first box 43. One end of the fifth shaft 44 is fixedly connected to the power output shaft of the fifth motor 45. The fifth motor 45 is fixedly connected to the side wall of the first box 43 via the ninth plate 46. The first cover plate is fixedly connected to the fifth shaft 44 and located inside the first box 43. The sixth shaft 48 is rotatably mounted inside the first box 43. One end of the sixth shaft 48 is fixedly connected to the power output shaft of the sixth motor 49. The sixth motor 49 is fixedly connected to the side wall of the first box 43 via the tenth plate 50. The second cover plate 51 is fixedly connected to the sixth shaft 48 and located inside the first box 43. Inside the first box 43, the first cover plate 47 and the second cover plate 51 can block the opening on the upper surface of the first box 43. The fixed box 14 has first slots 63 on both sides near the two fixed mechanisms 3. The two third hydraulic rods 52 are fixed to the inner side wall of the fixed box 14 and are located near the first slots 63. The telescopic ends of the third hydraulic rods 52 face the first slots 63. The telescopic ends of the two third hydraulic rods 52 are respectively fixed to two first blocks 53. The first blocks 53 are detachably connected to the first slots 63. The water pump 54 is fixed to the side wall of the fixed box 14 near the first box 43. The water inlet of the water pump 54 is located inside the fixed box 14, and the water outlet is located outside the fixed box 14. The two first handles 55 are respectively fixed to the outer side wall of the first box 43.

[0061] The fixed box 14 has second slots 64 on both sides near the interior of the two fixed mechanisms 3. The second slots 64 are located above the first slots 63. The two second blocks 56 can be detachably connected to the two second slots 64. The telescopic ends of the two fourth hydraulic rods 57 are fixed to the side of the two second blocks 56 away from the second slots 64. The end of the fourth hydraulic rod 57 away from the second blocks 56 is fixedly connected to a support block 58. The upper surfaces of the two support blocks 58 are fixedly connected to two fifth hydraulic rods 59. The telescopic ends of the two fifth hydraulic rods 59 face the conveyor belt 21. The telescopic ends of the two fifth hydraulic rods 59 are fixedly connected to two eleventh plates 60. The second box 61 is fixed to the opposite side walls of the two eleventh plates 60. The lower surface of the second box 61 has an opening. The closing component 62 is rotatably installed at the opening and can block the opening.

[0062] In this embodiment, when the collection box is full of silt and needs to be packaged and removed from the fixed box, the first hydraulic rod drives the conveyor belt to retract into the fixed box. After the third and fourth plates seal the upper and lower ends of the fixed box, the water pump starts to pump the river water out of the fixed box. The fifth motor drives the fifth shaft to rotate, and the sixth motor drives the sixth shaft to rotate. The fifth and sixth shafts respectively drive the first and second cover plates to flip open, exposing the opening on the upper end of the first box. After the first and second cover plates flip open, the fifth hydraulic rod drives the tenth... As the first plate moves, the eleventh plate moves the second box to the top of the collection box. At this time, the second hydraulic rod inside the collection box drives the screen plate to move upward, pushing some larger stones or debris that have been filtered out to a plane higher than the collection box. Since the second box is already at the top of the collection box, the fifth hydraulic rod drives the second box to push the stones and debris on the screen plate into the first box. After the second box and the screen plate continuously push all the stones and debris into the first box, the fifth motor and the sixth motor drive the first cover plate and the second cover plate respectively to cover the top of the first box.

[0063] When it is necessary to collect the sludge in the collection box, the fifth hydraulic rod drives the second box to move to the upper end of the collection box. The sealing assembly opens the opening at the lower end of the second box. At this time, the fixing mechanisms on both sides of the fixed box drive the fixed box to rotate 180 degrees. During the rotation, the sludge in the collection box will flow into the second box. At this time, the second motor on the screen plate inside the collection box drives the cam to vibrate the screen plate, allowing the sludge to flow into the second box more quickly. After all the sludge in the collection box has flowed into the second box, the sealing assembly seals the opening of the second box. The fifth hydraulic rod drives the second box to move to the initial position. When it is necessary to remove the first and second boxes, the fixing mechanism rises via the first traction rope and then pulls the fixed box to the horizontal plane via the second traction rope. Since the fixed box was rotated 180 degrees by the fixing mechanism, the second moving unit drives the fourth plate to move further away. The first box moves away from the first box. At this time, the third hydraulic rod drives the first locking block to move out of the first locking slot on the first box. Then, the first box can be lifted out of the fixed box using the first handle. After the first box is lifted out of the fixed box, the fourth hydraulic rod on the support block drives the second locking block to move out of the second locking slot on the fixed box. Then, the second box can be taken out using the second handle. The second box can not only collect silt but also push gravel and debris into the first box, improving the utilization rate of the second box. The fixed box is rotated by the fixing mechanism, allowing the silt in the collection box to flow quickly into the second box. By adjusting the rotation speed of the fixed box, centrifugal force and cam drive the screen plate to vibrate, making the silt flow into the second box even faster. The first box collects gravel and debris, and the second box collects silt, making it easier to directly recycle silt or gravel in the later stages.

[0064] like Figure 6As shown, the enclosed assembly 62 includes a seventh shaft 65, a first gear 66, a third cover plate 68, a rack 69, a connecting plate 70, a sixth hydraulic rod 71, and two second handles 72;

[0065] The seventh shaft 65 is rotatably installed inside the second box 61. One end of the seventh shaft 65 is fixedly connected to the first gear 66. The third cover plate 68 is fixedly connected to the seventh shaft 65 and located inside the second box 61. The third cover plate 68 can block the opening on the lower end face of the second box 61. A sliding groove 73 is provided on the side of the second box 61 near the first gear 66. The rack 69 is slidably installed on the sliding groove 73. The rack 69 can mesh with the first gear 66. The connecting plate 70 is fixedly connected to the lower end face of the rack 69. The sixth hydraulic rod 71 is fixedly connected to the side wall of the second box 61. The telescopic end of the sixth hydraulic rod 71 is fixedly connected to the connecting plate 70. The two second handles 72 are fixedly connected to both sides of the second box 61.

[0066] In this embodiment, when the opening of the second box needs to be closed, the sixth hydraulic rod drives the connecting plate to move. The connecting plate drives the rack to slide in the groove. During the movement of the rack, the first gear will also rotate. When the first gear rotates, it will drive the seventh shaft to rotate. When the seventh shaft rotates, it will drive the third cover plate to rotate. By adjusting the direction of the rack's forward and backward movement, the flip angle of the cover plate can be changed to achieve the purpose of closing or opening the opening of the second box.

[0067] like Figure 1 , Figure 2 , Figure 8 As shown, both of the fixing mechanisms 3 include a cylinder 74, a fixing barrel 75, a seventh motor 76, a second gear 77, a first support plate 78, two first fixing plates 79, an eighth shaft 80, an eighth motor 81, and a second support plate 82.

[0068] The cylinder 74 is fixed to the outer wall of the fixed box 14 and is located between the first moving unit 16 and the second moving unit 18. A fixed barrel 75 is rotatably connected to the end of the cylinder 74 away from the side wall of the fixed box 14. The seventh motor 76 is fixed to the upper surface of the fixed barrel 75. The power output of the seventh motor 76 faces one side of the fixed box 14. A second gear 77 is fixed to the power output shaft of the seventh motor 76. The second gear 77 can mesh with a gear rail on the cylinder 74, which is located between the fixed box 14 and the fixed barrel 75. The first support plate 78 is fixedly connected to the side wall of the fixed bucket 75 away from the cylinder 74. Both first fixed plates 79 are fixedly connected to the upper end face of the first support plate 78. The eighth shaft 80 is rotatably installed between the two first fixed plates 79. One end of the eighth shaft 80 is fixedly connected to the power output shaft of the eighth motor 81. The eighth motor 81 is fixedly connected to the side wall of the first fixed plate 79 through the second support plate 82. The end of the first traction rope 2 away from the first shaft 7 is fixedly connected to the eighth shaft 80 and located between the two first fixed plates 79.

[0069] In this embodiment, when the fixed box needs to be flipped, the seventh motor drives the second gear to rotate, and the second gear drives the cylinder on the side wall of the fixed box to rotate on the fixed barrel. When the fixing mechanism needs to drive the dredging mechanism to rise, the eighth motor drives the eighth shaft to rotate. During the rotation, the eighth shaft continuously rotates and winds the first traction rope, and the fixing mechanism and the dredging mechanism are raised by collecting the first traction rope.

[0070] like Figure 1 , Figure 2 As shown, the fixing mechanism 3 also includes a positioning unit 83, which includes two second fixing plates 84, a ninth shaft 85, a ninth motor 86, a third support plate 87, a worm gear 88, a third threaded rod 89, and a turbine 90.

[0071] Both second fixed plates 84 are fixed to the lower end face of the first support plate 78. The ninth shaft 85 is rotatably mounted between the two second fixed plates 84. One end of the ninth shaft 85 is fixed to the power output shaft of the ninth motor 86. The ninth motor 86 is fixed to the side wall of the second fixed plate 84 through the third support plate 87. The worm 88 is sleeved on the ninth shaft 85 and is located between the two second fixed plates 84. The third threaded rod 89 is rotatably mounted on the lower end face of the first support plate 78. A turbine 90 is sleeved on the third threaded rod 89 and can mesh with the worm 88.

[0072] In this embodiment, when the dredging mechanism begins to clear the silt from the riverbed, the ninth motor drives the ninth shaft to rotate, the ninth shaft drives the worm gear to rotate, the worm gear drives the turbine to rotate, and the turbine drives the third threaded rod to rotate. As the third threaded rod rotates continuously, it sinks into the riverbed and becomes fixed. Fixing the dredging mechanism to the riverbed with the third threaded rod not only makes it more stable during dredging, but also improves stability when driving the fixed box to rotate in the river water, preventing the second gear from failing to drive the cylinder to rotate the fixed box.

[0073] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and not to limit it. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that modifications or equivalent substitutions can still be made to the specific implementation of the present invention. Any modifications or equivalent substitutions that do not depart from the spirit and scope of the present invention should be covered within the scope of protection of the claims of the present invention.

Claims

1. A dredging device for water conservancy engineering construction, characterized in that, It includes two traction mechanisms (1), two first traction ropes (2), two fixing mechanisms (3) and a dredging mechanism (4); Both of the aforementioned traction mechanisms (1) can float on the water surface, and the two aforementioned fixing mechanisms (3) are respectively connected to the two traction mechanisms (1) through two first traction ropes (2); the fixing mechanism (3) can be submerged in the water and fixed to the bottom of the water, and the dredging mechanism (4) can be rotatably installed between the two fixing mechanisms (3); Both of the aforementioned traction mechanisms (1) include a float (5), an L-shaped slide rail (6), a first shaft (7), two first plates (8), a second shaft (9), a first motor (10), a second plate (11), a second traction rope (12), and a hook (13); The L-slide rail (6) is fixed to the lower end face of the float box (5) and extends to the opposite side wall of the float box (5). The L-slide rail (6) has a first opening on the side away from the float box (5). The first shaft (7) is slidably installed in the L-slide rail (6). One end of the first traction rope (2) passes through the first opening and is fixed to the first shaft (7). Both first plates (8) are fixed to the side of the float box (5) away from the L-slide rail (6). A second shaft (9) is rotatably installed between the two first plates (8). One end of the second shaft (9) is fixed to the power output shaft of the first motor (10). The first motor (10) is fixed to the side wall of the first plate (8) through the second plate (11). One end of the second traction rope (12) is fixed to the second shaft (9) and located between the two first plates (8). The other end of the second traction rope (12) is fixed to a hook (13). The dredging mechanism (4) includes a fixed box (14), a conveyor belt (21), a digging frame (22), a collection box (23), a screen plate (28), a second motor (29), and a cam (30). The fixed box (14) is installed between two fixed mechanisms (3). When the conveyor belt (21) rotates, the digging frame (22) is used to dig out the silt from the riverbed and pour it into the collection box (23). The second motor (29) is installed below the screen plate (28). The cam (30) is fixed to the power output shaft of the second motor (29). The cam (30) can cooperate with the screen plate (28). Both of the aforementioned fixing mechanisms (3) include a first support plate (78), an eighth shaft (80), and an eighth motor (81); the eighth shaft (80) is rotatably mounted relative to the first support plate (78), one end of the eighth shaft (80) is fixedly connected to the power output shaft of the eighth motor (81), and the end of the first traction rope (2) away from the first shaft (7) is fixedly connected to the eighth shaft (80); The fixing mechanism (3) also includes a positioning unit (83), which includes a third threaded rod (89). The third threaded rod (89) is rotatably mounted on the lower end face of the first support plate (78). When the third threaded rod (89) is driven to rotate, it will sink into the riverbed and be fixed.

2. The dredging device for water conservancy engineering construction as described in claim 1, characterized in that, The dredging mechanism (4) also includes a third plate (15), two first moving units (16), a fourth plate (17), two second moving units (18), two first hydraulic rods (19), two first connecting rods (20), two second hydraulic rods (24), two first fixing blocks (25), two springs (26) and two second fixing blocks (27). The upper end face of the fixed box (14) is provided with a second opening (31) that extends through to the lower end face. The third plate (15) is slidably installed on the upper end face of the fixed box (14). The sliding direction of the third plate (15) is perpendicular to the lifting direction of the fixed mechanism (3). The third plate (15) can cover the second opening (31). The two first moving units (16) are respectively fixed to the side wall of the third plate (15) near the fixed mechanism (3). The fourth plate (17) is slidably installed on the lower end face of the fixed box (14). The sliding direction of the fourth plate (17) is perpendicular to the lifting direction of the fixed mechanism (3). The fourth plate (17) can cover the second opening (31). The two second moving units (18) are respectively fixed to the side wall of the fourth plate (17) near the fixed mechanism (3). Two first hydraulic rods (19) are respectively fixed to the side wall of the fixed box (14) near the fixed mechanism (3). The telescopic ends of the two first hydraulic rods (19) are vertically downward. Two first connecting rods (20) are respectively fixed to the telescopic ends of the two first hydraulic rods (19). The conveyor belt (21) is fixed between the two first connecting rods (20). The collection box (23) is slidably set on the upper surface of the fourth plate (17) and located on the side where the material digging frame (22) flips and discharges material. The upper surface of the collection box (23) is provided with an opening. Two second hydraulic rods (24) are both fixed to the collection box (14). 23) On the inner upper surface, the telescopic ends of the two second hydraulic rods (24) are vertically upward, and the two first fixing blocks (25) are respectively fixed on the telescopic ends of the two second hydraulic rods (24). The upper surfaces of the two first fixing blocks (25) are provided with openings. One end of the two springs (26) is respectively fixed on the inner upper surface of the two first fixing blocks (25), and the other end of the two springs (26) is respectively fixed to the second fixing block (27). The upper surfaces of the two second fixing blocks (27) are each fixed with a sieve plate (28), and the sieve plate (28) is slidably installed in the collection box (23).

3. The dredging device for water conservancy engineering construction as described in claim 2, characterized in that, Both first moving units (16) include a third fixed block (32), a fifth plate (33), a first threaded rod (34), a third motor (35), and a sixth plate (36); The third fixing block (32) is fixed to the side wall of the third plate (15) near the fixing mechanism (3), the fifth plate (33) is fixed to the side wall of the fixing box (14) near the fixing mechanism (3), one end of the first threaded rod (34) is rotatably mounted on the fifth plate (33), the other end of the first threaded rod (34) is threadedly connected to the third fixing block (32) and then fixed to the power output shaft of the third motor (35), the third motor (35) is fixed to the side wall of the fixing box (14) through the sixth plate (36).

4. The dredging device for water conservancy engineering construction as described in claim 2, characterized in that, The second moving unit (18) includes a fourth fixed block (37), a seventh plate (38), a second threaded rod (39), a fourth motor (40), and an eighth plate (41); The fourth fixing block (37) is fixed to the side wall of the fourth plate (17) near the fixing mechanism (3), the seventh plate (38) is fixed to the side wall of the fixing box (14) near the fixing mechanism (3), one end of the second threaded rod (39) is rotatably mounted on the seventh plate (38), and the other end of the second threaded rod (39) is threadedly connected to the fourth fixing block (37) and then fixed to the power output shaft of the fourth motor (40). The fourth motor (40) is fixed to the side wall of the fixing box (14) through the eighth plate (41).

5. A dredging device for water conservancy engineering construction as described in claim 2, characterized in that, The dredging mechanism (4) also includes a packing unit (42), which includes a first box (43), a fifth shaft (44), a fifth motor (45), a ninth plate (46), a first cover plate (47), a sixth shaft (48), a sixth motor (49), a tenth plate (50), a second cover plate (51), two third hydraulic rods (52), two first locking blocks (53), a water pump (54), two first handles (55), two second locking blocks (56), two fourth hydraulic rods (57), two support blocks (58), two fifth hydraulic rods (59), two eleventh plates (60), a second box (61), and a sealing assembly (62). The first box (43) is slidably mounted on the upper surface of the fourth plate (17) and located on the side near the collection box (23) away from the conveyor belt (21). The upper surface of the first box (43) has an opening. The fifth shaft (44) is rotatably mounted inside the first box (43). One end of the fifth shaft (44) is fixedly connected to the power output shaft of the fifth motor (45). The fifth motor (45) is fixedly connected to the side wall of the first box (43) through the ninth plate (46). The first cover plate is fixedly connected to the fifth shaft (44) and located inside the first box (43). The sixth shaft (48) is rotatably mounted inside the first box (43). One end of the sixth shaft (48) is fixedly connected to the power output shaft of the sixth motor (49). The sixth motor (49) is fixedly connected to the side wall of the first box (43) through the tenth plate (50). The second cover plate (51) is fixedly connected to the sixth shaft (48) and located inside the first box (43). Inside 43), the first cover plate (47) and the second cover plate (51) can block the opening on the upper surface of the first box (43). The fixed box (14) has first slots (63) on both sides near the two fixed mechanisms (3). The two third hydraulic rods (52) are fixed on the inner side wall of the fixed box (14) and located near the first slots (63). The telescopic ends of the third hydraulic rods (52) face the first slots (63). The telescopic ends of the two third hydraulic rods (52) are respectively fixed with two first blocks (53). The first blocks (53) are detachably connected to the first slots (63). The water pump (54) is fixed on the side wall of the fixed box (14) near the first box (43). The inlet of the water pump (54) is located inside the fixed box (14), and the outlet is located outside the fixed box (14). The two first handles (55) are respectively fixed on the outer side wall of the first box (43). The fixed box (14) has second slots (64) on both sides near the interior of the two fixed mechanisms (3). The second slots (64) are located above the first slot (63). The two second blocks (56) can be detachably connected to the two second slots (64). The telescopic ends of the two fourth hydraulic rods (57) are fixedly connected to the side of the two second blocks (56) away from the second slots (64). The end of the fourth hydraulic rod (57) away from the second blocks (56) is fixedly connected to a support block (58). Two fifth hydraulic rods (59) are fixed to the upper end face of each of the two support blocks (58). The telescopic ends of the two fifth hydraulic rods (59) face the conveyor belt (21). Two eleventh plates (60) are fixed to the telescopic ends of the two fifth hydraulic rods (59). The second box (61) is fixed to the opposite side wall of the two eleventh plates (60). The lower end face of the second box (61) is provided with an opening. The closing component (62) is rotatably set at the opening. The closing component (62) can block the opening.

6. The dredging device for water conservancy engineering construction as described in claim 5, characterized in that, The enclosure assembly (62) includes a seventh shaft (65), a first gear (66), a third cover plate (68), a rack (69), a connecting plate (70), a sixth hydraulic rod (71), and two second handles (72). The seventh shaft (65) is rotatably installed inside the second box (61). One end of the seventh shaft (65) is fixedly connected to the first gear (66). The third cover plate (68) is fixedly connected to the seventh shaft (65) and located inside the second box (61). The third cover plate (68) can block the opening on the lower end face of the second box (61). A sliding groove (73) is provided on the side of the second box (61) near the first gear (66). The rack (69) is slidably installed on the sliding groove (73). The rack (69) can mesh with the first gear (66). The connecting plate (70) is fixedly connected to the lower end face of the rack (69). The sixth hydraulic rod (71) is fixedly connected to the side wall of the second box (61). The telescopic end of the sixth hydraulic rod (71) is fixedly connected to the connecting plate (70). The two second handles (72) are respectively fixedly connected to both sides of the second box (61).

7. A dredging device for water conservancy engineering construction as described in claim 2, characterized in that, The two fixing mechanisms (3) also include a cylinder (74), a fixing barrel (75), a seventh motor (76), a second gear (77), two first fixing plates (79), and a second support plate (82); The cylinder (74) is fixed to the outer wall of the fixed box (14) and located between the first moving unit (16) and the second moving unit (18). A fixed barrel (75) is rotatably connected to one end of the cylinder (74) away from the side wall of the fixed box (14). The seventh motor (76) is fixed to the upper end face of the fixed barrel (75). The power output of the seventh motor (76) faces the side of the fixed box (14). A second gear (77) is fixed to the power output shaft of the seventh motor (76). The second gear (77) can engage with a gear on the cylinder (74). The gears are engaged, and the gears are located between the fixed box (14) and the fixed barrel (75). The first support plate (78) is fixed to the side wall of the fixed barrel (75) away from the cylinder (74). The two first fixed plates (79) are fixed to the upper end face of the first support plate (78). The eighth shaft (80) is rotatably installed between the two first fixed plates (79). The eighth motor (81) is fixed to the side wall of the first fixed plate (79) through the second support plate (82). The first traction rope (2) is located between the two first fixed plates (79).

8. A dredging device for water conservancy engineering construction as described in claim 7, characterized in that, The positioning unit also includes two second fixing plates (84), a ninth shaft (85), a ninth motor (86), a third support plate (87), a worm (88), and a worm wheel (90). The two second fixed plates (84) are fixed to the lower end face of the first support plate (78). The ninth shaft (85) is rotatably installed between the two second fixed plates (84). One end of the ninth shaft (85) is fixed to the power output shaft of the ninth motor (86). The ninth motor (86) is fixed to the side wall of the second fixed plate (84) through the third support plate (87). The worm (88) is sleeved on the ninth shaft (85). The worm (88) is located between the two second fixed plates (84). The third threaded rod (89) is sleeved with a worm wheel (90). The worm wheel (90) can mesh with the worm (88).

Images