Hydraulic engineering dredging device and method of use thereof

Abstract

The application discloses a water conservancy project dredging device and a use method thereof. The water conservancy project dredging device comprises a supporting plate, a driving mechanism, a scattering mechanism, a crushing assembly and a suction assembly. The driving mechanism is arranged on the supporting plate. The scattering mechanism, the crushing assembly and the suction assembly are arranged on the driving part of the driving mechanism and are arranged adjacently. The driving mechanism drives the scattering mechanism, the crushing assembly and the suction assembly to move. The scattering mechanism is used for scattering sludge. The suction assembly is used for sucking the scattered sludge. The crushing assembly is used for crushing the sucked stones. The application can scatter the sludge at the bottom of a river channel before sucking and can crush the stones in the sludge, thereby preventing the damage of a sludge pump. The height position can be adjusted, thereby meeting the demand of dredging the bottom of an irregular river channel, and the flexibility and efficiency of equipment use are improved.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of water conservancy engineering dredging, and particularly relates to a water conservancy engineering dredging device and a use method thereof. BACKGROUND

[0002] Water conservancy engineering is an engineering for controlling and regulating surface water and groundwater in nature to achieve the purpose of eliminating harm and benefiting, also known as water engineering. Water is an indispensable precious resource for human production and life, but its natural state does not completely meet the needs of human beings. Only by building water conservancy projects can water flow be controlled to prevent flood disasters and water can be regulated and distributed to meet the needs of people's life and production for water resources. In the process of building water conservancy projects, the silt at the bottom of the water needs to be cleaned to facilitate the construction of buildings. The existing water conservancy engineering dredging device is prone to blockage of the sewage suction head during dredging, which causes the dredging work to be unable to proceed smoothly. At the same time, since the silt contains gravel, if the gravel is not treated, the blades in the silt pump will be broken, and the current dredging device is not convenient to adjust. Since the bottom of the river channel is uneven, manual assistance is required, which greatly reduces the dredging efficiency. SUMMARY

[0003] The purpose of the present application is to provide a water conservancy engineering dredging device and a use method thereof to solve the above problems.

[0004] To solve the above problems, the present application provides a technical scheme:

[0005] The water conservancy engineering dredging device comprises a supporting plate, a driving mechanism, a dispersing mechanism, a crushing assembly and a suction assembly. The driving mechanism is arranged on the supporting plate, the dispersing mechanism, the crushing assembly and the suction assembly are arranged on the driving part of the driving mechanism and are adjacent to each other, and the driving mechanism drives the dispersing mechanism, the crushing assembly and the suction assembly to move. The dispersing mechanism is used for dispersing silt, and the suction assembly is used for sucking the dispersed silt. The crushing assembly is used for crushing the sucked gravel.

[0006] Preferably, the driving mechanism comprises a fixed box, a first motor, a first lead screw, a sliding block, a connecting plate, a mounting box, a second motor, a second lead screw and a moving block.

[0007] The top of the supporting plate is fixedly connected with the fixed box, the sliding block is slidably connected in the fixed box, the connecting plate is fixedly connected to the outside of the sliding block, one side of the connecting plate is fixedly connected with the mounting box, the moving block is slidably connected in the mounting box, and the moving block is connected with the dispersing mechanism and the suction assembly. The sliding block can move in the vertical direction, and the moving block can move in the horizontal direction.

[0008] The first motor is fixedly connected in the fixed box, the output end of the first motor is fixedly connected with a first lead screw, the top end of the first lead screw is rotationally connected with the top of the inner wall of the fixed box, the first lead screw is internally threadedly connected with a sliding block, the inside of the sliding block is slidably connected with an auxiliary rod, and two ends of the auxiliary rod are fixedly connected with the top and the bottom of the inner wall of the fixed box.

[0009] The second motor is fixedly connected to one side of the inner wall of the mounting box, the output end of the second motor is fixedly connected with a second lead screw, the end, away from the second motor, of the second lead screw is rotationally connected with one side of the inner wall of the mounting box, and the second lead screw is internally threadedly connected with a moving block.

[0010] Preferably, the scattering mechanism comprises a mounting box, a bottom plate, a fixed rod, a fixed box and a scattering roller.

[0011] The bottom of the moving block is fixedly connected with the mounting box, the bottom of the mounting box is fixedly connected with the bottom plate, the bottom of the bottom plate is fixedly connected with four fixed rods in a symmetrical manner, the bottom of the fixed rod is fixedly connected with the fixed box, the inside of the fixed box is rotationally connected with the scattering roller, and the inside of the mounting box is provided with a driving assembly to drive the scattering roller to rotate.

[0012] Preferably, the crushing assembly comprises a crushing box, a first crushing roller and a second crushing roller.

[0013] The bottom of the fixed box is fixedly connected with the crushing box, the inside of the crushing box is rotationally connected with the first crushing roller and the second crushing roller which are arranged in parallel, and the driving assembly further drives the first crushing roller and the second crushing roller to rotate.

[0014] Preferably, the driving assembly comprises a third motor, a worm, a first gear, a second gear, a first worm wheel, a second worm wheel, a transmission shaft, a driving belt pulley, a sealing box and a driven belt pulley.

[0015] One side of the inside of the mounting box is fixedly connected with the third motor, the output end of the third motor is fixedly connected with the worm, the worm is meshed with the first worm wheel, the central shaft of the first gear is fixedly connected with the first worm wheel, the central shaft of the second crushing roller is fixedly connected with the first gear, the central shaft of the first crushing roller is fixedly connected with the second gear, the first gear and the second gear are meshedly connected, and the third motor drives the first crushing roller and the second gear to rotate towards each other.

[0016] The inside of the mounting box is rotationally connected with a second worm gear, the second worm gear is in meshing connection with the worm gear, the central shaft of the second worm gear is fixedly connected with a transmission shaft, one end of the transmission shaft penetrates through the mounting box and is fixedly connected with a sealing box, the outside of the fixed box is fixedly connected with the sealing box, the central shaft of the scattering roller extends to the inside of the sealing box and is fixedly connected with a driven pulley, and the driving pulley and the driven pulley are in transmission connection through a belt.

[0017] As preferred, the suction assembly comprises a sludge pump, a sludge discharge pipe, a guide pipe, a sludge suction pipe and a sludge taking bucket, the outside of the fixed box is fixedly connected with the sludge pump, the output end of the sludge pump is fixedly connected with the sludge discharge pipe, the input end of the sludge pump is fixedly connected with the guide pipe, one end of the guide pipe away from the sludge pump extends to the inside of the crushing box, the inside of the crushing box and one side away from the guide pipe is fixedly connected with the sludge suction pipe, the bottom of the sludge suction pipe is fixedly connected with the sludge taking bucket, and the sludge taking bucket is located between the fixed box and the crushing box, the sludge pump sucks the sludge from the sludge taking bucket into the crushing box, and the sludge is crushed by the first crushing roller and the second crushing roller and then sucked into the crushing box through the guide pipe.

[0018] As preferred, the sludge taking bucket is obliquely arranged, the side of the sludge taking bucket close to the scattering roller is lower than the side close to the crushing box, and the bottom of the sludge taking bucket is higher than the bottom of the scattering roller.

[0019] As preferred, the top of the supporting plate is fixedly connected with a stand, and the outside of the stand is detachably connected with a plurality of counterweight discs.

[0020] The application also provides a use method of the water conservancy project dredging device.

[0021] S1, place the supporting plate on the bottom of the river channel, then put the counterweight disc on the outside of the stand, drive the worm gear to rotate by the third motor, the worm gear drives the second worm gear and the transmission shaft to rotate when rotating, at the same time, the transmission shaft drives the driving pulley to rotate, the driving pulley drives the driven pulley to rotate under the drive of the belt, and the driven pulley drives the scattering roller in the fixed box to rotate at this time, and the scattering roller scatters the sludge on the bottom when rotating;

[0022] S2, extract the air in the crushing box by the sludge pump cooperating with the sludge discharge pipe and the guide pipe, so that a negative pressure is formed in the crushing box, the sludge is sucked into the crushing box by the sludge suction pipe cooperating with the sludge taking bucket due to the negative pressure in the crushing box, the worm gear drives the first worm gear to rotate when rotating, the first worm gear drives the first gear and the second crushing roller to rotate, at the same time, the first gear drives the second gear and the first crushing roller to rotate, the first crushing roller and the second crushing roller crush the stones in the sludge when rotating, and then the sludge pump cooperates with the sludge discharge pipe and the guide pipe to discharge the sludge and the crushed stones in the crushing box;

[0023] S3, drive the first screw rod to rotate through the first motor, the first screw rod drives the sliding block to lift through the auxiliary rod, and then can drive the fixed box and the crushing box to move through the mounting box, so that the scattering roller can always scatter the sludge, the second screw rod drives the moving block to slide in the mounting box through the second motor, and then the distance between the moving block and the supporting plate can be changed.

[0024] The beneficial effects of the present application are: the sludge at the bottom of the river channel can be scattered before being sucked, and the gravel in the sludge can be crushed, thereby preventing the sludge pump from being damaged, the height position can be adjusted, thereby meeting the demand for dredging the irregular river channel bottom, and the flexibility and efficiency of the equipment are improved. Further, by setting the second motor in the mounting box and cooperating with the second screw rod, the position of the fixed box and the crushing box can be adjusted, thereby meeting the progress of dredging, and at the same time, the driving assembly can drive the scattering roller and the first and second crushing rollers to rotate, thereby scattering the sludge at the bottom of the river channel before being sucked, and crushing the gravel in the sludge through the first and second crushing rollers, thereby preventing the sludge pump from being damaged, the height of the fixed box can be adjusted through the first motor and the first screw rod, thereby meeting the demand for dredging the irregular river channel bottom, and the flexibility and efficiency of the equipment are improved. BRIEF DESCRIPTION OF DRAWINGS

[0025] For easy description, the present application is described in detail by the following specific embodiments and drawings.

[0026] Figure 1 is the overall structure section view of the water conservancy dredging device of the embodiment of the present application.

[0027] Figure 2 is the overall structure section view of the water conservancy dredging device of the embodiment of the present application. Figure 1 is the local enlarged view of the water conservancy dredging device.

[0028] Figure 3 is the enlarged view of A in the present application. Figure 2 is the enlarged view of A in the present application.

[0029] Figure 4 is the enlarged view of B in the present application. Figure 2 is the enlarged view of B in the present application.

[0030] In the figure: 1, the supporting plate; 2, the stand; 3, the counterweight disc; 4, the fixed box; 5, the first motor; 6, the first screw rod; 7, the sliding block; 8, the connecting plate; 9, the mounting box; 10, the second motor; 11, the second screw rod; 12, the moving block; 13, the mounting box; 14, the bottom plate; 15, the fixed rod; 16, the fixed box; 17, the scattering roller; 18, the crushing box; 19, the first crushing roller; 20, the second crushing roller; 21, the suction assembly; 211, the sludge pump; 212, the sludge discharge pipe; 213, the guide pipe; 214, the sludge suction pipe; 215, the sludge taking bucket; 22, the driving assembly; 221, the third motor; 222, the worm; 223, the first gear; 224, the second gear; 225, the first worm wheel; 226, the second worm wheel; 227, the transmission shaft; 228, the driving pulley; 229, the sealing box; 2210, the driven pulley; 23, the auxiliary rod. DETAILED DESCRIPTION

[0031] In the description of the embodiments of the present application, it should be noted that the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the embodiments of the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the embodiments of the present application. In addition, the terms "first", "second", "third" are only for the purpose of description, and cannot be understood as indicating or implying relative importance. In the description of the embodiments of the present application, it should be noted that unless otherwise explicitly specified and limited, the terms "connected", "connected" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium. For those skilled in the art, the specific meaning of the above terms in the embodiments of the present application can be understood according to the specific circumstances.

[0032] In the embodiments of the present application, unless otherwise explicitly specified and limited, the first feature is "on" or "under" the second feature, which can be that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature "above", "above" and "above" the second feature can be that the first feature is directly above or obliquely above the second feature, or only indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature "below", "below" and "below" the second feature can be that the first feature is directly below or obliquely below the second feature, or only indicates that the horizontal height of the first feature is less than that of the second feature.

[0033] In the description of the present specification, the description of the terms "one embodiment", "some embodiments", "an example", "a specific example", or "some examples" and the like means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application, and the illustrative description of the above terms in the present specification does not necessarily refer to the same embodiment or example, and the specific features, structures, materials or characteristics described can be combined in any appropriate manner in any one or more embodiments or examples, and in addition, the person skilled in the art can combine and combine the different embodiments or examples described in the present specification and the features of the different embodiments or examples without contradiction.

[0034] Embodiment 1:

[0035] See Figures 1-4 The water conservancy project dredging device provided by the embodiments of the present application comprises a supporting plate 1, a driving mechanism, a dispersing mechanism, a crushing assembly and a suction assembly 21. The driving mechanism is arranged on the supporting plate 1, the dispersing mechanism, the crushing assembly and the suction assembly 21 are arranged on the driving part of the driving mechanism and are arranged adjacent to each other, and the driving mechanism drives the dispersing mechanism, the crushing assembly and the suction assembly 21 to move. The dispersing mechanism is used for dispersing silt, and the suction assembly 21 is used for sucking the dispersed silt. The crushing assembly is used for crushing the sucked stones.

[0036] The driving mechanism comprises a fixed box 4, a first motor 5, a first lead screw 6, a sliding block 7, a connecting plate 8, a mounting box 9, a second motor 10, a second lead screw 11 and a moving block 12.

[0037] The top of the supporting plate 1 is fixedly connected with the fixed box 4, the inside of the fixed box 4 is slidably connected with the sliding block 7, the outside of the sliding block 7 is fixedly connected with the connecting plate 8, one side of the connecting plate 8 is fixedly connected with the mounting box 9, the inside of the mounting box 9 is slidably connected with the moving block 12, and the moving block 12 is connected with the dispersing mechanism and the suction assembly 21. The sliding block 7 can move in the vertical direction, and the moving block 12 can move in the horizontal direction.

[0038] The first motor 5 is fixedly connected in the fixed box 4, the output end of the first motor 5 is fixedly connected with the first lead screw 6, the top end of the first lead screw 6 is rotatably connected with the top of the inner wall of the fixed box 4, the first lead screw 6 is threadedly connected with the inside of the sliding block 7, the inside of the sliding block 7 is slidably connected with an auxiliary rod 23, and the two ends of the auxiliary rod 23 are fixedly connected with the top and the bottom of the inner wall of the fixed box 4 respectively.

[0039] The second motor 10 is fixedly connected to one side of the inner wall of the mounting box 9, the output end of the second motor 10 is fixedly connected with the second lead screw 11, the second lead screw 11 is rotatably connected to one side of the inner wall of the mounting box 9 away from the second motor 10, and the second lead screw 11 is internally threadedly connected with the moving block 12.

[0040] The driving mechanism can meet the needs of dredging the bottom of irregular river channels by driving vertical and horizontal movement, and facilitate cleaning of silt at different positions.

[0041] The scattering mechanism comprises a mounting box 13, a bottom plate 14, a fixed rod 15, a fixed box 16 and a scattering roller 17.

[0042] The mounting box 13 is fixedly connected to the bottom of the moving block 12, the bottom plate 14 is fixedly connected to the bottom of the mounting box 13, the bottom of the bottom plate 14 is fixedly connected with four fixed rods 15 in a symmetrical manner, the fixed rods 15 are fixedly connected with the fixed box 16 at the bottom, the fixed box 16 is rotatably connected with the scattering roller 17 in the interior, and the mounting box 13 is provided with a driving assembly 22 in the interior to drive the scattering roller 17 to rotate.

[0043] The scattering mechanism can scatter silt at the bottom of the river channel before suction through the scattering roller 17.

[0044] The crushing assembly comprises a crushing box 18, a first crushing roller 19 and a second crushing roller 20.

[0045] The crushing box 18 is fixedly connected to the bottom of the fixed box 16, the first crushing roller 19 and the second crushing roller 20 are rotatably connected in parallel in the interior of the crushing box 18, and the driving assembly 22 further drives the first crushing roller 19 and the second crushing roller 20 to rotate.

[0046] The crushing assembly can crush the gravel, so that damage of the wheels of the sludge pump 211 can be avoided.

[0047] The driving assembly 22 comprises a third motor 221, a worm 222, a first gear 223, a second gear 224, a first worm gear 225, a second worm gear 226, a transmission shaft 227, a driving pulley 228, a sealing box 229 and a driven pulley 2210.

[0048] The third motor 221 is fixedly connected to one side inside the mounting box 13, the output end of the third motor 221 is fixedly connected with a worm 222, the worm 222 is engaged with a first worm wheel 225, the central shaft of the first gear 223 is fixedly connected with the first worm wheel 225, the central shaft of the second crushing roller 20 is fixedly connected with the first gear 223, the central shaft of the first crushing roller 19 is fixedly connected with a second gear 224, the first gear 223 is engaged with the second gear 224, the third motor 221 drives the first crushing roller 19 and the second gear 224 to rotate towards each other.

[0049] The second worm wheel 226 is rotatably connected inside the mounting box 13, the second worm wheel 226 is engaged with the worm 222, the central shaft of the second worm wheel 226 is fixedly connected with a transmission shaft 227, one end of the transmission shaft 227 penetrates through the mounting box 13 and is fixedly connected with a sealing box 229, the sealing box 229 is fixedly connected outside the fixed box 16, the central shaft of the scattering roller 17 extends to the inside of the sealing box 229 and is fixedly connected with a driven pulley 2210, the driving pulley 228 is drivingly connected with the driven pulley 2210 through a belt.

[0050] The specific driving relationship between the worm 222 and the first gear 223 is that:

[0051] The worm 222 is engaged with the first worm wheel 225, and the shaft centers of the worm 222 and the first worm wheel 225 are in a vertical state, the transmission direction of the worm gear is vertical, and thus the first worm wheel 225 and the first gear 223 are in a parallel state, so that the central shaft of the first gear 223 can be fixedly connected with the shaft center of the first worm wheel 225, and when the worm 222 drives the first worm wheel 225 to rotate, the first gear 223 can be driven to rotate.

[0052] The driving assembly 22 drives the scattering roller 17, the first crushing roller 19 and the second crushing roller 20 to rotate simultaneously through the third motor 221, so as to reduce the space occupation and cost.

[0053] The suction assembly 21 comprises a sludge pump 211, a sludge discharge pipe 212, a guide pipe 213, a sludge suction pipe 214 and a sludge taking bucket 215, the sludge pump 211 is fixedly connected outside the fixed box 4, the output end of the sludge pump 211 is fixedly connected with the sludge discharge pipe 212, the input end of the sludge pump 211 is fixedly connected with the guide pipe 213, the end of the guide pipe 213 away from the sludge pump 211 extends to the inside of the crushing box 18, the sludge suction pipe 214 is fixedly connected to the side of the inside of the crushing box 18 away from the guide pipe 213, the bottom of the sludge suction pipe 214 is fixedly connected with the sludge taking bucket 215, and the sludge taking bucket 215 is located between the fixed box 16 and the crushing box 18, the sludge pump 211 sucks the sludge from the sludge taking bucket 215 into the crushing box 18, and the crushed stones are crushed by the first crushing roller 19 and the second crushing roller 20 and then sucked through the guide pipe 213.

[0054] The sludge taking bucket 215 is inclined, the side of the sludge taking bucket 215 close to the scattering roller 17 is lower than the side close to the crushing box 18, and the bottom of the sludge taking bucket 215 is higher than the bottom of the scattering roller 17.

[0055] The top of the supporting plate 1 is fixedly connected with a stand 2, and a plurality of counterweight discs 3 are detachably connected outside the stand 2.

[0056] Embodiment 2:

[0057] The method for using the water conservancy project dredging device comprises the following steps:

[0058] S1, place the supporting plate 1 at the bottom of the river channel, then put the counterweight disc 3 outside the stand 2, the third motor 221 drives the worm 222 to rotate, the worm 222 drives the second worm gear 226 and the transmission shaft 227 to rotate when rotating, at the same time, the transmission shaft 227 drives the driving pulley 228 to rotate, the driving pulley 228 drives the driven pulley 2210 to rotate under the drive of the belt, at this time, the driven pulley 2210 can drive the scattering roller 17 inside the fixed box 16 to rotate, and the scattering roller 17 scatters the sludge at the bottom when rotating;

[0059] S2, the sludge pump 211 cooperates with the sludge discharge pipe 212 and the guide pipe 213 to extract the air inside the crushing box 18, so that a negative pressure is formed inside the crushing box 18, because the negative pressure is generated inside the crushing box 18, the sludge taking bucket 215 cooperates with the sludge suction pipe 214 to suck the scattered sludge into the inside of the crushing box 18, the worm 222 drives the first worm gear 225 to rotate when rotating, the first worm gear 225 drives the first gear 223 and the second crushing roller 20 to rotate, at the same time, the first gear 223 drives the second gear 224 and the first crushing roller 19 to rotate, the first crushing roller 19 and the second crushing roller 20 crush the stones in the sludge when rotating, and then the sludge pump 211 cooperates with the sludge discharge pipe 212 and the guide pipe 213 to discharge the sludge and the crushed stones in the crushing box 18.

[0060] S3, drive the first screw rod 6 to rotate through the first motor 5, the first screw rod 6 drives the sliding block 7 to lift through the auxiliary rod 23, and then can drive the fixed box 16 and the crushing box 18 to move through the mounting box 9, so that the beating roller 17 can beat the sludge all the time, drive the second screw rod 11 to rotate through the second motor 10, and then the moving block 12 can slide in the mounting box 9, so as to change the distance between the moving block 12 and the supporting plate 1.

[0061] Although the embodiments of the present application have been shown and described, it is to be understood that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present application, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A device for dredging waterworks, characterized in that, The utility model provides a mud breaking device, including the supporting plate (1), drive mechanism, scatter mechanism, smashing subassembly and suction subassembly (21), drive mechanism is located supporting plate (1), scatter mechanism, smashing subassembly with drive mechanism drive part of suction subassembly (21) are located and adjacent arrangement, drive mechanism drives scatter mechanism, smashing subassembly with suction subassembly (21) moves, scatter mechanism is used for scattering sludge, suction subassembly (21) is used for sucking the sludge of scattering, and smashing subassembly is used for smashing the gravel of inhaling, The drive mechanism includes a fixed box (4), a first motor (5), a first screw (6), a sliding block (7), a connecting plate (8), a mounting box (9), a second motor (10), a second screw (11), and a moving block (12). The top of the supporting plate (1) is fixedly connected with the fixed box (4), the inside of the fixed box (4) is slidably connected with the sliding block (7), the outside of the sliding block (7) is fixedly connected with the connecting plate (8), one side of the connecting plate (8) is fixedly connected with the mounting box (9), the inside of the mounting box (9) is slidably connected with the moving block (12), and the moving block (12) is connected with the scatter mechanism and the suction subassembly (21); the sliding block (7) can move in the vertical direction, and the moving block (12) can move in the horizontal direction. The inside of the fixed box (4) is fixedly connected with the first motor (5), the output end of the first motor (5) is fixedly connected with the first screw (6), the top end of the first screw (6) is rotatably connected with the top of the inner wall of the fixed box (4), the first screw (6) is screwedly connected with the inside of the sliding block (7), the inside of the sliding block (7) is slidably connected with an auxiliary rod (23), and both ends of the auxiliary rod (23) are fixedly connected with the top and the bottom of the inner wall of the fixed box (4). One side of the inner wall of the mounting box (9) is fixedly connected with the second motor (10), the output end of the second motor (10) is fixedly connected with the second screw (11), one end, away from the second motor (10), of the second screw (11) is rotatably connected with one side of the inner wall of the mounting box (9), and the second screw (11) is screwedly connected with the inside of the moving block (12). The scatter mechanism comprises a mounting box (13), a bottom plate (14), a fixed rod (15), a fixed box (16), and a scattering roller (17). The bottom of the moving block (12) is fixedly connected with the mounting box (13), the bottom of the mounting box (13) is fixedly connected with the bottom plate (14), the bottom of the bottom plate (14) is fixedly connected with four fixed rods (15) in a symmetrical manner, the bottom of each fixed rod (15) is fixedly connected with a fixed box (16), the inside of the fixed box (16) is rotatably connected with the scattering roller (17), and the inside of the mounting box (13) is provided with a driving assembly (22) to drive the scattering roller (17) to rotate. The smashing subassembly comprises a smashing box (18), a first smashing roller (19), and a second smashing roller (20). The bottom of the bottom plate (14) is also fixedly connected with a crushing box (18), the inside of the crushing box (18) is rotatably connected with the first crushing roller (19) and the second crushing roller (20) arranged in parallel; the driving assembly (22) also drives the first crushing roller (19) and the second crushing roller (20) to rotate; The driving assembly (22) comprises a third motor (221), a worm (222), a first gear (223), a second gear (224), a first worm wheel (225), a second worm wheel (226), a transmission shaft (227), a driving pulley (228), a sealing box (229) and a driven pulley (2210); One side of the inside of the mounting box (13) is fixedly connected with the third motor (221), the output end of the third motor (221) is fixedly connected with the worm (222), the worm (222) is engaged with the first worm wheel (225), the central shaft of the first gear (223) is fixedly connected with the first worm wheel (225), the central shaft of the second crushing roller (20) is fixedly connected with the first gear (223), the central shaft of the first crushing roller (19) is fixedly connected with the second gear (224), the first gear (223) and the second gear (224) are engagedly connected, and the third motor (221) drives the first crushing roller (19) and the second gear (224) to rotate towards each other; The inside of the mounting box (13) is rotatably connected with the second worm wheel (226), the second worm wheel (226) and the worm (222) are engagedly connected, the central shaft of the second worm wheel (226) is fixedly connected with the transmission shaft (227), one end of the transmission shaft (227) penetrates through the mounting box (13) and is fixedly connected with the sealing box (229), the outside of the fixed box (16) is fixedly connected with the sealing box (229), the central shaft of the scattering roller (17) extends to the inside of the sealing box (229) and is fixedly connected with the driven pulley (2210), and the driving pulley (228) and the driven pulley (2210) are drivingly connected through a belt.

2. The hydraulic engineering dredging device of claim 1, wherein, The suction assembly (21) comprises a sludge pump (211), a sludge discharge pipe (212), a guide pipe (213), a sludge suction pipe (214) and a sludge taking bucket (215), the sludge pump (211) is fixedly connected outside the fixed box (4), the output end of the sludge pump (211) is fixedly connected with the sludge discharge pipe (212), the input end of the sludge pump (211) is fixedly connected with the guide pipe (213), one end of the guide pipe (213) away from the sludge pump (211) extends to the inside of the crushing box (18), the sludge suction pipe (214) is fixedly connected to one side of the inside of the crushing box (18) away from the guide pipe (213), the sludge taking bucket (215) is fixedly connected to the bottom of the sludge suction pipe (214), and the sludge taking bucket (215) is located between the fixed box (16) and the crushing box (18), the sludge pump (211) sucks the sludge from the sludge taking bucket (215) into the crushing box (18), and the crushed stones are crushed by the first crushing roller (19) and the second crushing roller (20) and then sucked through the guide pipe (213).

3. The hydraulic engineering dredging device of claim 2, wherein, The sludge taking bucket (215) is inclined, the side of the sludge taking bucket (215) close to the scattering roller (17) is lower than the side close to the crushing box (18), and the bottom of the sludge taking bucket (215) is higher than the bottom of the scattering roller (17).

4. The hydraulic dredging device of claim 3, wherein The top of the supporting plate (1) is fixedly connected with a stand column (2), and the outer part of the stand column (2) is detachably connected with a plurality of counterweight discs (3).

5. The method of using a hydraulic engineering dredging device of claim 4, wherein, The method comprises the following steps: S1, place the supporting plate (1) at the bottom of the river channel, then put the counterweight disc (3) on the outer part of the stand column (2), the third motor (221) drives the worm (222) to rotate, the worm (222) drives the second worm gear (226) and the transmission shaft (227) to rotate at the same time, the transmission shaft (227) drives the driving pulley (228) to rotate, the driving pulley (228) drives the driven pulley (2210) to rotate under the drive of the belt, and the driven pulley (2210) drives the scattering roller (17) in the fixed box (16) to rotate at this time, and the scattering roller (17) scatters the sludge at the bottom when rotating; S2, the sludge pump (211) cooperates with the sludge discharge pipe (212) and the guide pipe (213) to extract the air in the crushing box (18), so that a negative pressure is formed in the crushing box (18), the sludge taking bucket (215) cooperates with the sludge suction pipe (214) to suck the scattered sludge into the crushing box (18) due to the negative pressure in the crushing box (18), the worm (222) drives the first worm gear (225) to rotate, the first worm gear (225) drives the first gear (223) and the second crushing roller (20) to rotate, and the first gear (223) drives the second gear (224) and the first crushing roller (19) to rotate at the same time, the first crushing roller (19) and the second crushing roller (20) crush the stones in the sludge when rotating, and then the sludge pump (211) cooperates with the sludge discharge pipe (212) and the guide pipe (213) to discharge the sludge and the crushed stones in the crushing box (18). S3, through the first motor (5) drive first screw rod (6) rotation, first screw rod (6) cooperation auxiliary rod (23) drive slider (7) to go up and down, further can cooperate installation box (9) drive fixed box (16) and crushing box (18) move, so that the scattered roller (17) can always be scattered on the sludge, through the second motor (10) drive second screw rod (11) rotation, second screw rod (11) drive moving block (12) in the installation box (9) inside slide, further can change its distance with the supporting plate (1).

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