Dredging device for water conservancy project

Abstract

The desilting device for the water conservancy project relates to the technical field of water conservancy project desilting, and comprises a ship body, a desilting assembly and a dewatering mechanism, a transverse rod is fixedly connected to the interior of the ship body, a sludge discharging opening is formed in one side of the middle section of the transverse rod, and a baffle is fixedly connected to the outer contour of the sludge discharging opening; the two baffles are located on the two sides of the sludge discharging opening, the other ends of the two baffles are both fixedly connected to the inner wall of the ship body, a telescopic rod capable of freely rotating and stretching out and drawing back is arranged at the bottom end of the ship body, a fixing rod is rotationally connected to the bottom end of the telescopic rod, and a conical head is arranged at the bottom end of the fixing rod. By arranging the positioning mechanism, when fixed-point desilting operation is carried out, the collecting radius of sludge is gradually increased; by arranging the swinging mechanism, continuous oscillation is conducted in the dredging operation process, and the structure of hard layer sludge is damaged; and the dewatering mechanism is arranged, so that mud-water separation treatment is automatically carried out in the sludge conveying process.

Description

Technical Field

[0001] The present invention relates to the technical field of dredging in water conservancy projects, and specifically provides a dredging device for water conservancy projects. Background Art

[0002] The use of dredging devices in water conservancy projects is crucial. Its core purpose is to restore and enhance water conservancy functions, improve the water ecological environment, and ensure the safety and production and living of surrounding areas by removing silt from water areas such as rivers and lakes. The application of dredging devices not only improves the water flow efficiency and enhances the flood control and drainage capacity, but also provides important support for agricultural irrigation and residents' lives by reducing pollutant accumulation and improving water quality.

[0003] After retrieval, a Chinese patent with the publication number CN118420195B includes a hull. A crushing component is arranged on the outer wall of the hull, a conveying component is arranged on the crushing component, an extrusion mechanism, an anti-blocking component and an extrusion auxiliary mechanism are arranged in the conveying component. A sludge discharge box is fixedly connected to the upper side of the hull, and a crushing component is arranged above the hull. The extrusion mechanism includes a fixing plate, and a guide rail 1 is fixedly connected to the upper side of the fixing plate. The dredging sludge treatment device for the reservoir in this water conservancy project can crush the sundries in the sludge before the sludge is conveyed through the use of the crushing component, the conveying component and the extrusion mechanism. When the sludge is conveyed to the feeding port, the sludge can be extruded to squeeze out the water in the sludge, and the water in the sludge can be discharged from the feeding port through the filter membrane and the through-hole plate, so that the subsequent sludge will not flow back after being discharged to the shore.

[0004] However, in the above solution, the collection function of the silt depends on the crushing component, and its working range is small, and only fixed-point dredging operations can be realized. The hull needs to cooperate and move continuously to achieve the expected overall dredging effect. On the other hand, during the dredging process, some silt deposits for a long time to form a hard layer. At this time, the resistance suffered by the crushing component when collecting silt is large, which easily leads to a decrease or failure in the dredging efficiency. In addition, there is no coordination between the extrusion mechanism and the conveying component in the above solution. The conveying component realizes the continuous conveying operation of the silt, while the extrusion mechanism performs intermittent dehydration operations on the silt, resulting in the fact that some silt is difficult to achieve the expected dehydration effect, and the discharged water also has the risk of entering the sewage tank. Summary of the Invention

[0005] The purpose of the present invention is to provide a dredging device for water conservancy projects, which has the advantages of adaptive dredging and mud-water separation, and solves the problems raised in the background art.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a dredging device for water conservancy projects, comprising a hull, a dredging assembly and a dewatering mechanism, wherein a cross bar is fixedly connected to the interior of the hull, a mud discharge port is opened on one side of the middle section of the cross bar, a baffle is fixedly connected to the outer contour of the mud discharge port, two baffles are provided and located on both sides of the mud discharge port, the other ends of the two baffles are fixedly connected to the inner wall of the hull, a telescopic rod that can be freely rotated and retracted is provided at the bottom end of the hull, a fixed rod is rotatably connected to the bottom end of the telescopic rod, and a conical head is provided at the bottom end of the fixed rod; The desilting assembly includes a collecting mechanism for collecting sludge, a positioning mechanism for expanding the sludge collection radius, and a swinging mechanism for oscillating and loosening the sludge, wherein the positioning mechanism includes a guide frame fixedly connected to the bottom end of the telescopic rod, and the swinging mechanism is arranged inside the positioning mechanism and fixedly connected to the collecting mechanism; The dewatering mechanism comprises a delivery pipe which penetrates the hull and is fixedly connected to the top end of the telescopic rod.

[0007] Preferably, a slide groove 1 is provided on the lower surface of the guide frame, a positioning rod passes through and is slidably connected in the slide groove 1, a threaded shaft is threaded through the top end of the positioning rod, one end of the threaded shaft passes through and is connected to the guide frame for limited rotation, the other end of the threaded shaft is fixedly connected to a worm wheel, a worm sleeve is meshingly connected to the outer contour of the worm wheel, and the worm sleeve is passed through and fixedly connected to the outer contour of the fixing rod.

[0008] Preferably, the positioning mechanism also includes a horizontal plate fixedly connected to the bottom end of the positioning rod, and the surface of the horizontal plate is provided with two sliding grooves for the fixing rod to pass through and limit sliding, and cone plates are fixedly connected on both sides of the upper surface of the horizontal plate, and the lower surface of the guide frame is provided with a guide groove that cooperates with the cone plate.

[0009] Preferably, the swinging mechanism includes a motor arranged on a side of the transverse plate away from the second slide groove, the output end of the motor is fixedly connected to a rotating wheel, the end of the rotating wheel away from the motor is eccentrically transmission-connected to a ball head rod, the other end of the ball head rod is transmission-connected to a slider, guide rails for limited sliding of the slider are arranged on both sides of the outer contour of the slider, a screw rod is threaded through the slider, the upper and lower ends of the screw rod are threaded through positioning plates that are rotatably connected, the positioning plate is limitedly slidingly connected to the inside of the transverse plate and is fixedly connected to the guide rail, and the guide rail is threaded through a fixed shaft fixedly connected to the inside of the transverse plate.

[0010] Preferably, the collecting mechanism includes a mud pushing shovel fixedly connected to a bottom end away from the positioning plate, a freely rotatable auger is arranged inside the mud pushing shovel, a hose is penetrated through one side of the mud pushing shovel, the top end of the hose penetrates the upper half of the telescopic rod, and the mud pushing shovel and the telescopic rod are connected through the hose.

[0011] Preferably, the delivery pipe is fixed and connected with the upper half of the telescopic rod, the top end of the delivery pipe is eccentrically fixed and connected with an eccentric tube, the lower half of the outer contour of the eccentric tube is penetrated by a bottom plate, the upper half of the outer contour of the eccentric tube is penetrated by a transmission plate, the bottom plate and the transmission plate are fixedly connected, the upper surface of the transmission plate is fixedly connected with a vortex plate 1, and a filter is provided on the outer periphery of the transmission plate.

[0012] Preferably, the dehydration mechanism further comprises a fixed plate fixedly connected to the middle section of the cross bar and assembled with the mud discharge port, the bottom end of the fixed plate is fixedly connected with a vortex plate 2, and the threads of the vortex plate 2 and the vortex plate 1 are in opposite directions.

[0013] Preferably, the dehydration mechanism also includes a cross pin plate that is passed through the outer contour of the conveying pipe, and the upper and lower surfaces of the cross pin plate are provided with pin blocks, and the pin blocks on the upper and lower surfaces of the cross pin plate are vertically staggered with each other, and the cross pin plate is transmission connected to the bottom plate through the upper surface pin block, and the cross pin plate is transmission connected to a fixed seat through the lower surface pin block, and the fixed seat is fixedly connected to the interior of the hull and is passed through the conveying pipe.

[0014] Compared with the prior art, the present invention has the following beneficial effects: The present invention provides a positioning mechanism, and when performing a fixed-point dredging operation, the sludge collection radius gradually increases, effectively expanding the dredging area of the scheme, thereby ensuring the dredging efficiency.

[0015] The present invention provides an oscillating mechanism to continuously oscillate the collecting mechanism during the dredging operation, thereby structurally destroying the hard layer of silt, thereby effectively ensuring the dredging quality of the solution.

[0016] The present invention provides a dewatering mechanism to automatically separate mud and water during the transportation of sludge, thereby further ensuring the dredging effect of the scheme. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the main structure of the present invention; Figure 2 It is a cross-sectional view of the main structure of the present invention; Figure 3 It is a schematic diagram of the hull of the present invention; Figure 4 It is a cross-sectional view of the positioning mechanism of the present invention; Figure 5 It is an exploded view of the positioning mechanism of the present invention; Figure 6 It is a schematic diagram of the collection mechanism of the present invention; Figure 7 It is a schematic diagram of the swing mechanism of the present invention; Figure 8 It is a cross-sectional view of the dehydration mechanism of the present invention; Figure 9 This is the explosion diagram of the dehydration mechanism of the present invention.

[0018] In the figure: 1. Hull; 11. Cross bar; 12. Mud discharge port; 13. Baffle; 14. Telescopic rod; 15. Fixed rod; 2. Guide frame; 21. First chute; 22. Threaded shaft; 23. Worm gear; 24. Worm sleeve; 25. Positioning rod; 26. Horizontal plate; 27. Second chute; 28. Tapered plate; 29. Guide groove; 3. Motor; 31. Rotating wheel; 32. Ball head rod; 33. Slide block; 34. Lead screw; 35. Positioning plate; 36. Guide rail; 37. Positioning rod; 4. Mud pushing shovel; 41. Auger; 42. Hose; 5. Delivery pipe; 51. Eccentric pipe; 52. Bottom plate; 53. Transmission plate; 54. Filter screen; 55. First scroll plate; 56. Fixed plate; 57. Second scroll plate; 58. Cross pin plate; 59. Fixed seat. Detailed implementation mode

[0019] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention. Embodiment 1:

[0020] Please refer to Figures 1 to 9 , the present invention provides a technical solution: a dredging device for water conservancy projects, including a hull 1, and further including a dredging component and a dehydration mechanism. A cross bar 11 is fixedly connected inside the hull 1. A mud discharge port 12 is opened on one side of the middle section of the cross bar 11. A baffle 13 is fixedly connected to the outer contour of the mud discharge port 12. There are two baffles 13 and they are located on both sides of the mud discharge port 12. The other ends of the two baffles 13 are fixedly connected to the inner wall of the hull 1. A telescopically rotatable telescopic rod 14 is provided at the bottom end of the hull 1. The bottom end of the telescopic rod 14 is rotatably connected to a fixed rod 15. The bottom end of the fixed rod 15 is provided with a conical head; The dredging component includes a collection mechanism for collecting silt, a positioning mechanism for expanding the silt collection radius, and a swinging mechanism for oscillating and loosening the silt. The positioning mechanism includes a guide frame 2 fixedly connected to the bottom end of the telescopic rod 14. The swinging mechanism is arranged inside the positioning mechanism and fixedly connected to the collection mechanism; The dehydration mechanism includes a delivery pipe 5 passing through the hull 1 and fixedly connected to the top end of the telescopic rod 14.

[0021] In this solution, the hull 1 serves as the traveling and temporary storage structure for the silt. When dredging operations need to be carried out on the river channel, the hull 1 is driven to the river surface directly above the dredging location. Subsequently, the telescopic rod 14 is controlled to extend. Since the dredging assembly is integrally arranged below the telescopic rod 14, as the telescopic rod 14 extends, the dredging assembly is gradually lowered, and the collection mechanism gradually reaches the riverbed and contacts the silt deposited at the bottom of the river. At this time, the conical head provided at the bottom of the fixing rod 15 is inserted into the riverbed, and through the anchoring relationship formed between the conical head at the bottom of the fixing rod 15 and the riverbed, the overall structure of the solution is fixed to prevent the hull 1 from shaking during the operation of the dredging assembly and affecting the dredging effect.

[0022] Furthermore, at this time, the extension process of the telescopic rod 14 is stopped, and the telescopic rod 14 is controlled to start rotating. The telescopic rod 14 synchronously drives the entire dredging assembly to rotate. At this time, the collection mechanism pushes the silt at the bottom of the river to move, collecting the silt while destroying the structural strength of the silt and guiding it into the dehydration mechanism.

[0023] The dehydration mechanism works synchronously to perform the mud-water separation treatment on the collected silt. The dehydrated silt is exported from the mud discharge port 12 opened on the cross bar 11 to the inside of the hull 1, while the seeping water naturally falls into the inside of the hull 1. The hull 1 and the cross bar 11 jointly fix the dehydration mechanism. The separated silt and water are separated by the baffle 13. At this time, a suction device can be set on the river bank to further process the silt temporarily stored in the hull 1, and the water is directly introduced into the river.

[0024] It should be noted that during the operation of the collection mechanism, it drives the rotating shoveling operation through the positioning mechanism, and the traveling mode of the positioning mechanism is a spiral movement that gradually expands outward. That is, the collection mechanism gradually expands outward while rotating, that is, the area where it contacts the silt at the bottom of the river gradually moves outward to meet the requirement of gradually expanding the dredging area of the solution without moving the hull 1, thereby effectively improving the dredging efficiency of the solution.

[0025] Furthermore, the swinging mechanism connects the positioning mechanism and the collection mechanism. During the dredging operation, the swinging mechanism works synchronously and further controls the movement trajectory of the collection mechanism. While the collection mechanism is moving in a spiral movement that gradually expands outward along with the positioning mechanism, under the action of the swinging mechanism, the linear movement is further adjusted to a wave-like reciprocating movement, thereby further increasing the destruction intensity of the silt structure when the collection mechanism is pushing the silt, reducing the movement resistance of the collection mechanism, and effectively ensuring the dredging effect of the solution. Embodiment 2:

[0026] Please refer to Figure 4 and Figure 5This embodiment further explains on the basis of the first embodiment: a slide groove 21 is provided on the lower surface of the guide frame 2, a positioning rod 25 passes through and is slidably connected in the slide groove 21, a threaded shaft 22 is threaded through the top of the positioning rod 25, one end of the threaded shaft 22 passes through and is connected to the guide frame 2 for limited rotation, and a worm gear 23 is fixedly connected to the other end of the threaded shaft 22, and a worm sleeve 24 is meshingly connected to the outer contour of the worm gear 23, and the worm sleeve 24 is passed through and fixedly connected to the outer contour of the fixing rod 15.

[0027] The positioning mechanism also includes a transverse plate 26 fixedly connected to the bottom end of the positioning rod 25, and the surface of the transverse plate 26 is provided with a slide groove 27 for the fixing rod 15 to pass through and limit sliding, and cone plates 28 are fixedly connected to both sides of the upper surface of the transverse plate 26, and the lower surface of the guide frame 2 is provided with a guide groove 29 that cooperates with the cone plate 28.

[0028] It can be seen from Example 1 that when the telescopic rod 14 is extended so that the conical head at the bottom end of the fixed rod 15 is inserted into the riverbed, the positioning operation of the scheme is completed. At this time, the overall structure is fixed under the anchoring effect formed between the conical head at the bottom end of the fixed rod 15 and the riverbed, and then the telescopic rod 14 starts to rotate, and the dredging operation begins.

[0029] Since the guide frame 2 is fixedly connected to the bottom end of the telescopic rod 14, that is, the telescopic rod 14 drives the guide frame 2 to rotate synchronously, at this time, the slide groove 1 21 rotates synchronously with the guide frame 2, since the positioning rod 25 passes through the slide groove 1 21 and is fixedly connected with the cross plate 26, the cross plate 26 is fixedly connected with the cone plate 28, and the cone plate 28 cooperates with the guide groove 29 opened at the bottom end of the guide frame 2, that is, the cross plate 26 and the cone plate 28 can only slide along the direction of the guide groove 29. At this time, the rotation of the guide frame 2 will drive the positioning rod 25, the cross plate 26 and the cone plate 28 to rotate synchronously, and the swinging mechanism and the collecting mechanism rotate synchronously in this process.

[0030] Furthermore, the positioning rod 25 drives the threaded shaft 22 to rotate synchronously, and the worm wheel 23 fixedly connected to one end of the threaded shaft 22 will also rotate synchronously. When the fixing rod 15 is inserted into the riverbed, under the friction anchoring effect of the riverbed soil layer, the fixing rod 15 hardly rotates, that is, the worm sleeve 24 is in an approximately stationary state, and the worm wheel 23 revolves around the worm sleeve 24 at this time; because the worm wheel 23 is meshed with the worm sleeve 24, that is, the worm wheel 23 rotates synchronously while it revolves due to the meshing effect of the worm sleeve 24, and because the meshing transmission relationship between the worm wheel 23 and the worm sleeve 24 belongs to a reduction transmission, that is, the rotation amplitude of the worm wheel 23 is very small.

[0031] When the worm gear 23 rotates self - sufficiently, it drives the threaded shaft 22 to rotate synchronously. At this time, since the threaded shaft 22 is screwed to the positioning rod 25 and the positioning rod 25 is restricted by the first chute 21 and cannot rotate along the threaded shaft 22, that is, the threaded shaft 22 will drive the positioning rod 25 to move along the direction of the first chute 21 following the self - rotation of the worm gear 23. Since the self - rotation amplitude of the worm gear 23 is very small, the moving speed of the positioning rod 25 is also very small.

[0032] Furthermore, the positioning rod 25 is fixedly connected to the cross - plate 26, and the opening directions of the first chute 21 and the guiding groove 29 are the same. That is, at this time, the positioning rod 25 will drive the cross - plate 26 and the conical plate 28 to move synchronously. The cross - plate 26 and the conical plate 28 gradually horizontally extend outwards from the bottom of the guiding frame 2. During this process, the second chute 27 moves synchronously, and the fixed rod 15 remains stationary. Since the swinging mechanism is arranged on one side of the cross - plate 26 far away from the second chute 27 and the collecting mechanism is arranged at the bottom of the swinging mechanism, that is, the collecting mechanism and the swinging mechanism both horizontally extend outwards synchronously.

[0033] Combined with the rotation process of the collecting mechanism described above, it can be known that when the telescopic rod 14 starts to rotate, the overall movement trajectory of the collecting mechanism is the same as that of the cross - plate 26, both being a gradually expanding spiral - like movement. At this time, the position where the bottom end of the collecting mechanism contacts the river bottom silt moves outwards synchronously, so as to realize the gradual expansion of the dredging area through the continuously outward - moving silt - contact position. Since the outward - moving speed of the collecting mechanism is very small, that is, the change amplitude of the position where its bottom end contacts the silt is also very small, the collecting mechanism can effectively ensure its silt - collecting effect while the dredging area is gradually expanding, and thus ensure the dredging quality of the scheme. Embodiment Three:

[0034] Please refer to Figure 6 and Figure 7 This embodiment further illustrates on the basis of Embodiment Two: The swinging mechanism includes a motor 3 arranged on one side of the cross - plate 26 far away from the second chute 27. The output end of the motor 3 is fixedly connected with a rotating wheel 31. One end of the rotating wheel 31 far away from the motor 3 is eccentrically drivingly connected with a ball - head rod 32. The other end of the ball - head rod 32 is drivingly connected with a slider 33. On both sides of the outer contour of the slider 33, there are guide rails 36 for the slider 33 to be limited and slide. The slider 33 is penetrated and screwed with a lead screw 34. The upper and lower ends of the lead screw 34 are both penetrated and rotatably connected with positioning plates 35. The positioning plates 35 are limited and slidably connected inside the cross - plate 26 and are fixedly connected with the guide rails 36. The guide rails 36 are penetrated by a fixed shaft 37 fixedly connected inside the cross - plate 26.

[0035] The collection mechanism includes a mud pushing shovel 4 fixedly connected to the bottom end away from the positioning plate 35. A screw conveyor 41 that can rotate freely is arranged inside the mud pushing shovel 4. One side of the mud pushing shovel 4 is penetrated by a hose 42. The top end of the hose 42 penetrates the upper half of the telescopic rod 14. The mud pushing shovel 4 and the telescopic rod 14 are communicated through the hose 42.

[0036] As can be seen from Embodiment 2, the movement trajectories of the swinging mechanism and the collection mechanism are both consistent with the cross plate 26. That is, when the swinging mechanism is not working, there is no relative movement between it and the collection mechanism. When the swinging mechanism starts to work, according to the description process of Embodiment 1, the swinging mechanism will further adjust the movement trajectory of the collection mechanism to increase the damage intensity of the collection mechanism to the silt structure.

[0037] When a hard layer is formed due to the long-term deposition of river bottom silt, the swinging mechanism needs to work to Figure 7 Take it as an example. At this time, the motor 3 is started to drive the rotating wheel 31 to rotate self. Since the ball head rod 32 is eccentrically connected to the rotating wheel 31 in a transmission manner, and the other end of the ball head rod 32 is connected to the slider 33 in a transmission manner, the height position of the slider 33 remains fixed when the lead screw 34 is not adjusted, that is, the height of the other end position of the ball head rod 32 remains unchanged. At this time, the rotation of the rotating wheel 31 will drive the ball head rod 32 to start eccentric rotation. The rotation axis of the ball head rod 32 is the connection point between it and the slider 33.

[0038] Therefore, it can be known that in the initial state, the self-rotation axes of the slider 33 and the rotating wheel 31 are in the same linear position. At this time, during the eccentric rotation process of the ball head rod 32, the projected length of the ball head rod 32 in the horizontal direction does not change. When the lead screw 34 is rotated to cause the slider 33 to move up and down inside the guide rail 36, the height position of the slider 33 will deviate from the extension line of the self-rotation axis of the rotating wheel 31. At this time, during the deflection rotation process of the ball head rod 32, the projected length of the ball head rod 32 in the horizontal direction changes, and it is in a reciprocating cycle of rapidly shortening and then elongating; for example, assume that the lead screw 34 is adjusted to move the slider 33 upward. At this time, during one rotation of the rotating wheel 31, the inclination amplitude of the ball head rod 32 gradually increases in the first half circle, and its projected length in the horizontal direction synchronously shortens. In the second half circle, the inclination amplitude of the ball head rod 32 gradually decreases and finally reaches the starting position. At this time, the projected length of the ball head rod 32 in the horizontal direction synchronously increases.

[0039] When the projected length of the ball head rod 32 changes in the horizontal direction, the ball head rod 32 generates a pushing and pulling force on the slider 33. When the inclination degree of the ball head rod 32 increases, it pulls the slider 33, causing the slider 33, the positioning plate 35, and the guide rail 36 to approach the rotating wheel 31 by a small distance along the fixed shaft 37. When the inclination degree of the ball head rod 32 decreases, the slider 33, the positioning plate 35, and the guide rail 36 move away from the rotating wheel 31 along the fixed shaft 37 and reach the starting position. That is, after the adjusting screw rod 34 causes the slider 33 to deviate from the extension line of the self-rotation axis of the rotating wheel 31, the slider 33, the positioning plate 35, and the guide rail 36 are in a reciprocating sliding motion process. When the rotating wheel 31 rotates one circle, the slider 33, the positioning plate 35, and the guide rail 36 complete one reciprocating slide, thereby realizing the reciprocating oscillation of the positioning plate 35 driving the collection mechanism.

[0040] Furthermore, as can be seen from Embodiment 2, the swinging mechanism performs a gradually expanding spiral motion along with the cross plate 26. Therefore, the overall motion trajectory of the positioning plate 35 and the collection mechanism is a wavy spiral outward expansion motion.

[0041] Meanwhile, the motion of the collection mechanism causes it to carry out structural damage and collection operations on the river bottom sludge. Along with the rotation of the cross plate 26, the mud pushing shovel 4 rotates synchronously to realize the mud pushing process. The accumulated sludge is inside the mud pushing shovel 4 and is further guided into the hose 42 under the rotation of the auger 41, imported into the upper half of the telescopic rod 14 through the hose 42, and finally imported into the dehydration mechanism.

[0042] During this process, the wavy spiral outward expansion motion of the mud pushing shovel 4 can effectively increase its damage intensity to the sludge. The wavy oscillating motion can effectively loosen the sludge, thereby improving the collection effect of the mud pushing shovel 4. The spiral outward expansion motion can further increase the motion path of the mud pushing shovel 4, thereby increasing the dredging area. Among them, the auger 41 is controlled by an internal motor and starts running synchronously along with the start of the dredging operation. Embodiment 4:

[0043] Please refer to Figure 8 and Figure 9 , this embodiment further illustrates on the basis of Embodiment 3: The conveying pipe 5 is fixedly penetrated and communicated with the upper half of the telescopic rod 14. The top end of the conveying pipe 5 is eccentrically fixedly communicated with an eccentric pipe 51. The lower half of the outer contour of the eccentric pipe 51 penetrates through a bottom plate 52, and the upper half of the outer contour of the eccentric pipe 51 penetrates through a transmission plate 53. The bottom plate 52 and the transmission plate 53 are fixedly connected. A scroll plate one 55 is fixedly connected to the upper surface of the transmission plate 53, and a filter screen 54 is arranged on the outer peripheral part of the transmission plate 53.

[0044] The dewatering mechanism also includes a fixed plate 56 fixedly connected to the middle section of the cross bar 11 and assembled with the mud discharge port 12 , and a vortex plate 2 57 is fixedly connected to the bottom end of the fixed plate 56 , and the threads of the vortex plate 2 57 and the vortex plate 1 55 are opposite in direction.

[0045] The dehydration mechanism also includes a cross pin plate 58 that passes through the outer contour of the conveying pipe 5. The upper and lower surfaces of the cross pin plate 58 are provided with pin blocks. The pin blocks on the upper and lower surfaces of the cross pin plate 58 are vertically staggered with each other. The cross pin plate 58 is transmission connected to the bottom plate 52 through the upper surface pin block. The cross pin plate 58 is transmission connected to a fixed seat 59 through the lower surface pin block. The fixed seat 59 is fixedly connected to the inside of the hull 1 and is penetrated by the conveying pipe 5.

[0046] It can be seen from the third embodiment that the collected silt is introduced into the conveying pipe 5 through the telescopic rod 14, and then enters the eccentric tube 51 and is arranged on the surface of the transmission plate 53. During this process, the dredging operation is carried out synchronously, that is, the telescopic rod 14 is continuously in a rotating state. Since the conveying pipe 5 is fixedly connected to the telescopic rod 14, the eccentric tube 51 is eccentrically fixedly connected to the conveying pipe 5, that is, the conveying pipe 5 rotates synchronously, and the eccentric tube 51 revolves around the axis of the conveying pipe 5.

[0047] Furthermore, since the bottom plate 52 and the transmission plate 53 are both penetrated by the eccentric tube 51, the vortex plate 1 55 is fixedly connected to the transmission plate 53, that is, during the revolution of the eccentric tube 51, it will push and pull the bottom plate 52 and the transmission plate 53 to move synchronously, and the bottom plate 52, the transmission plate 53 and the vortex plate 1 55 all start to revolve along with the eccentric tube 51; and the vortex plate 2 57 is restricted by the cross bar 11 and is in a fixed state, and the fixed plate 56 is fixedly connected to the vortex plate 2 57, that is, the fixed plate 56 and the vortex plate 2 57 remain stationary. At this time, the vortex plate 1 55 The revolution of the vortex plate 57 will cause it to continuously scrape the outer surface of the vortex plate 57, and the sludge is discharged to the upper surface of the transmission plate 53 through the eccentric tube 51, and then accumulates in the gap between the fixed plate 56 and the vortex plate 1 55. At this time, the continuous scraping of the vortex plate 1 55 on the fixed plate 56 will synchronously squeeze the sludge in the gap between the two, and then the mud-water separation operation is achieved by squeezing the sludge. The dehydrated sludge continues to accumulate in the gap between the vortex plate 1 55 and the fixed plate 56, and the separated water naturally seeps down and is discharged into the interior of the hull 1 through the filter screen 54.

[0048] At the same time, the silt accumulates in the gap between the vortex plate 55 and the fixed plate 56. Along with the eccentric revolution of the vortex plate 55, the silt is continuously squeezed and moves along the spiral direction of the vortex plate 55 under the cooperation of the vortex plate 55 and the fixed plate 56. Finally, the dehydrated silt is discharged into the interior of the hull 1 from the sludge discharge port 12. At this time, the dehydrated silt is separated from the separated water body by the baffle 13. A suction device can be set on the river bank to further process the dehydrated silt, and the water body can be discharged into the river.

[0049] It should be noted that during the movement of the bottom plate 52 and the transmission plate 53 along with the eccentric tube 51, the bottom end of the bottom plate 52 drives the cross pin plate 58 to move synchronously, while the fixed seat 59 remains fixed. That is, the cross pin plate 58 can only slide back and forth and left and right, and it cannot rotate on its own, and the orientation of the cross pin plate 58 always remains unchanged. Further, the orientations of the bottom plate 52, the transmission plate 53, and the first scroll plate 55 all remain unchanged, thus effectively preventing jamming between the first scroll plate 55 and the fixed plate 56 to ensure the mud separation quality of the solution.

[0050] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A dredging device for water conservancy projects, comprising a hull (1), characterized in that: It also comprises a dredging assembly and a dewatering mechanism, wherein a cross bar (11) is fixedly connected to the interior of the hull (1), a mud discharge port (12) is provided on one side of the middle section of the cross bar (11), a baffle (13) is fixedly connected to the outer contour of the mud discharge port (12), two baffles (13) are provided and are located on both sides of the mud discharge port (12), the other ends of the two baffles (13) are fixedly connected to the inner wall of the hull (1), a freely rotatable and retractable telescopic rod (14) is provided at the bottom end of the hull (1), the bottom end of the telescopic rod (14) is rotatably connected to a fixed rod (15), and the bottom end of the fixed rod (15) is provided with a conical head; The dredging assembly comprises a collecting mechanism for collecting sludge, a positioning mechanism for expanding the sludge collection radius, and a swinging mechanism for oscillating and loosening the sludge, wherein the positioning mechanism comprises a guide frame (2) fixedly connected to the bottom end of the telescopic rod (14), and the swinging mechanism is arranged inside the positioning mechanism and fixedly connected to the collecting mechanism; The dewatering mechanism comprises a delivery pipe (5) which penetrates the hull (1) and is fixedly connected to the top end of the telescopic rod (14).

2. The dredging device for water conservancy projects according to claim 1, characterized in that: A slide groove (21) is provided on the lower surface of the guide frame (2), a positioning rod (25) passes through and is slidably connected to the slide groove (21), a threaded shaft (22) is threadedly connected through the top end of the positioning rod (25), one end of the threaded shaft (22) passes through and is rotationally connected to the guide frame (2), the other end of the threaded shaft (22) is fixedly connected to a worm wheel (23), a worm sleeve (24) is meshingly connected to the outer contour of the worm wheel (23), and the worm sleeve (24) passes through and is fixedly connected to the outer contour of the fixing rod (15).

3. The dredging device for water conservancy projects according to claim 2, characterized in that: The positioning mechanism further comprises a transverse plate (26) fixedly connected to the bottom end of the positioning rod (25), the surface of the transverse plate (26) being provided with a second slide groove (27) for the fixing rod (15) to pass through and slide in a limited position, cone plates (28) being fixedly connected to both sides of the upper surface of the transverse plate (26), and the lower surface of the guide frame (2) being provided with a guide groove (29) cooperating with the cone plate (28).

4. A dredging device for water conservancy projects according to claim 1, characterized in that: The swing mechanism comprises a motor (3) arranged on a side of the horizontal plate (26) away from the second slide groove (27), the output end of the motor (3) is fixedly connected to a rotating wheel (31), one end of the rotating wheel (31) away from the motor (3) is eccentrically transmission-connected to a ball head rod (32), the other end of the ball head rod (32) is transmission-connected to a slider (33), both sides of the outer contour of the slider (33) are provided with guide rails (36) for limited sliding of the slider (33), a screw rod (34) is threaded through the slider (33), the upper and lower ends of the screw rod (34) are threaded through positioning plates (35) for rotational connection, the positioning plate (35) is limitedly slidably connected to the inside of the horizontal plate (26) and is fixedly connected to the guide rail (36), and the guide rail (36) is threaded through a fixed shaft (37) fixedly connected to the inside of the horizontal plate (26).

5. A dredging device for water conservancy projects according to claim 1, characterized in that: The collecting mechanism includes a mud pushing shovel (4) fixedly connected to the bottom end away from the positioning plate (35). A screw conveyor (41) that can rotate freely is arranged inside the mud pushing shovel (4). One side of the mud pushing shovel (4) is penetrated by a hose (42). The top end of the hose (42) penetrates the upper half of the telescopic rod (14). The mud pushing shovel (4) and the telescopic rod (14) are communicated through the hose (42).

6. The dredging device for water conservancy projects according to claim 1, wherein: The conveying pipe (5) is fixedly penetrated and communicated with the upper half of the telescopic rod (14). An eccentric pipe (51) is fixedly communicated with the top end of the conveying pipe (5) eccentrically. The lower half of the outer contour of the eccentric pipe (51) penetrates the bottom plate (52). The upper half of the outer contour of the eccentric pipe (51) penetrates the transmission plate (53). The bottom plate (52) and the transmission plate (53) are fixedly connected. A first scroll plate (55) is fixedly connected to the upper surface of the transmission plate (53). A filter screen (54) is arranged on the outer peripheral part of the transmission plate (53).

7. The dredging device for water conservancy projects according to claim 6, characterized in that: The dewatering mechanism further includes a fixing plate (56) fixedly connected to the middle section of the cross bar (11) and fitted with the mud discharge port (12). A second scroll plate (57) is fixedly connected to the bottom end of the fixing plate (56). The thread directions of the second scroll plate (57) and the first scroll plate (55) are opposite to each other.

8. The dredging device for water conservancy projects according to claim 7, wherein: The dewatering mechanism further includes a cross pin plate (58) penetrated through the outer contour of the conveying pipe (5). Pin blocks are arranged on the upper and lower surfaces of the cross pin plate (58). The pin blocks on the upper and lower surfaces of the cross pin plate (58) are perpendicular and staggered with each other. The cross pin plate (58) is in transmission connection with the bottom plate (52) through the pin block on the upper surface. The cross pin plate (58) is in transmission connection with a fixed seat (59) through the pin block on the lower surface. The fixed seat (59) is fixedly connected to the inside of the hull (1) and penetrated by the conveying pipe (5).

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