CN116378156A

CN116378156A - Dredging device and method for water conservancy river channel

Info

Publication number: CN116378156A
Application number: CN202310526609.1A
Authority: CN
Inventors: 王显; 孙亚明; 刘娟; 王春芳; 孙成贺; 刘慧杰
Original assignee: Individual
Current assignee: Individual
Priority date: 2023-05-11
Filing date: 2023-05-11
Publication date: 2023-07-04

Abstract

The invention belongs to the technical field of river dredging, in particular to a dredging device for a water conservancy river, which comprises a placement frame, a suction pipeline, a storage box, a winch and a cleaning piece, wherein the placement frame is fixedly connected with the suction pipeline through a fixing frame, the cleaning piece is rotatably connected to a connecting frame at the lower part of the placement frame, and the storage box is arranged at one side of the cleaning piece. According to the invention, the garbage in the river is effectively cleaned by using the cleaning piece before the sludge is sucked and cleaned, the cleaned garbage is temporarily collected in the storage box so as to facilitate the subsequent centralized treatment, and meanwhile, the sludge layer deposited on the river bed is stirred so as to loosen the sludge layer, so that the sludge and the river are mixed together to form slurry, the subsequent and smooth suction cleaning operation is facilitated, the dredging efficiency is improved, the garbage is cleaned while the dredging is performed, the effective treatment of the river is realized, the practicability is strong, and the environmental treatment effect is good.

Description

Dredging device and method for water conservancy river channel

Technical Field

The invention relates to the technical field of river dredging, in particular to a dredging device and method for a water conservancy river.

Background

Traditional river dredging modes are divided into wet type and dry type. Wet dredging is a dredging mode by adopting engineering machinery such as ships and the like under the condition that river water exists in a river channel; the dry dredging is a way of dredging engineering machinery such as an excavator after river water and silt are pumped out.

Dry dredging is in the back of taking out the water in the river course, need to suck the silt of river bottom to the mud tank car through the soil pick-up pump, further be convenient for apparatuses such as excavator excavate rubbish and stone etc. of river bottom and clear up, current river course is mostly long banded structure, because silt mobility is less, when carrying out silt suction in this kind of river course, silt is difficult to flow to the soil pick-up pump to the input and assemble, thereby need remove the input of soil pick-up pump along the river course with the manual work, construction convenience is poor, and, in the silt suction process, most only can adsorb the partial silt on top layer, the silt that partly mixes with rubbish and stone is difficult to stable absorption, there is the problem that silt suction effect is not ideal.

Disclosure of Invention

(one) solving the technical problems

Aiming at the defects of the prior art, the invention provides a dredging device and a dredging method for a water conservancy river channel, which solve the problems that most of the sludge on the surface layer can be adsorbed only, part of the sludge mixed with garbage and stones is difficult to stably adsorb, and the sludge pumping effect is not ideal.

(II) technical scheme

The invention adopts the following technical scheme for realizing the purposes:

the utility model provides a dredging device of water conservancy river course, includes rack, suction pipe way, containing box, hoist engine and clearance piece, through mount fixedly connected with suction pipe way on the rack, and rotate on the link of rack lower part and be connected with the clearance piece, all fixedly connected with cable winds on the hoist engine on the side bearer of clearance piece both sides, rotates on the side bearer and is connected with the drive belt on driving shaft and the driven shaft that connect, equidistant settling has the stirring claw on the drive belt to one side of clearance piece is provided with the containing box.

Further, the bayonet socket that the drive belt integral type set up is pegged graft with stir the claw and is connected, stir the end of claw towards one side setting of buckling, and the tooth socket that sets up in the drive belt meshes with the tooth on the band pulley, band pulley fixed connection installs the position department of drive belt on driving shaft and driven shaft to driving shaft and driven shaft both ends are all rotated with the side bearer through the bearing and are connected, driving shaft and link rotation are connected, driving shaft one end fixedly connected's follow driving wheel passes through the driving chain and is connected with the action wheel transmission on the driving motor output shaft, and driving motor fixed mounting is on the second of setting on the rack to the equidistant settling of drive belt is between the side bearer, and with the band pulley one-to-one setting on driving shaft and the driven shaft, fixedly connected with connecting rod between the side bearer, and the couple of side bearer lower part fixedly connected with overlap joint cable.

Further, fixedly connected with dead lever on the outer wall of containing box both sides, the upper end of dead lever can be dismantled and be connected on the rack, and one side that the containing box is close to the clearance piece is provided with the slope case mouth, has seted up the groove of wearing that the cooperation was stirred the claw on the slope case mouth to evenly distributed's leak hole has been seted up to the bottom of containing box.

Further, the position department fixedly connected with consolidates the inner support between the arrangement frame, consolidates the first bench fixedly connected with hoist engine that sets up on the inner support, and is provided with the wind-up roll of coiling cable on the hoist engine, cable one end fixedly connected with cooperation couple link to the cable is taken up in the rope groove of seting up on the guide pulley, and the guide pulley rotates through the pivot to be connected on the arrangement frame, one side fixedly connected with installation pole of arrangement frame, fixedly connected with consolidates branch between installation pole and the arrangement frame, the end position department fixedly connected with connecting plate of installation pole, and the equal fixedly connected with in both ends of mount is on the installation pole, and suction pipe passes through pipeline fixed clamp fixed connection on the mount, and suction pipe's lower extreme fixedly connected with prevents stifled tube head, is provided with on the tube head and draws fender grid and agitator.

A dredging method of a dredging device of a water conservancy river channel comprises the following steps:

s1, during installation, a mounting rod on a mounting frame is fixedly connected to traction driving equipment by using a bolt, the installation of the whole dredging device is completed, and in the subsequent dredging process, the whole dredging device is driven by the traction driving equipment;

s2, when the cleaning device is used, starting a winch to retract and release the inhaul cable, and along with retraction and release of the inhaul cable, pulling one end of the cleaning piece to move up and down, at the moment, the side frame of the cleaning piece rotates on the connecting frame, and adjusting the position of the lower end of the whole cleaning piece, so that the lower end of the cleaning piece is directly placed in a silt layer of a river bed, and the lower end of the cleaning piece is ensured not to be abutted against the hard river bed;

s3, after position debugging of the cleaning piece is completed, starting a driving motor, driving a driving shaft to rotate on a side frame through a driving chain, driving a driving belt to rotate through a belt wheel in the rotating process of the driving shaft, driving a pulling claw to move in the rotating process of the driving belt, stirring sludge deposited on a riverbed by the pulling claw in the moving process, loosening and stirring the sludge, driving suspended and floating garbage in river water to an inclined box opening part in a storage box and falling into the storage box, and discharging water doped in the garbage from a drain hole at the bottom of the storage box;

s4, after the pulling claw stirs a silt layer deposited on the riverbed, starting a pump body for pumping the silt, and leading the silt mixed with the river water to enter a pumping pipeline from an anti-blocking pipe head, so that the pumping cleaning of the silt on the riverbed is completed, and the silt is conveyed into a temporary storage bin for storage for subsequent treatment.

(III) beneficial effects

Compared with the prior art, the invention provides the dredging device and the dredging method for the water conservancy river channel, which have the following beneficial effects:

according to the invention, the garbage in the river is effectively cleaned by using the cleaning piece before the sludge is sucked and cleaned, the cleaned garbage is temporarily collected in the storage box so as to facilitate the subsequent centralized treatment, and meanwhile, the sludge layer deposited on the river bed is stirred so as to loosen the sludge layer, so that the sludge and the river are mixed together to form slurry, the subsequent and smooth suction cleaning operation is facilitated, the dredging efficiency is improved, the garbage is cleaned while the dredging is performed, the effective treatment of the river is realized, the practicability is strong, and the environmental treatment effect is good.

Drawings

FIG. 1 is a schematic diagram of the structure of the present invention;

FIG. 2 is a schematic view of a cleaning member according to the present invention;

FIG. 3 is a schematic view of a belt structure according to the present invention;

FIG. 4 is a schematic view of a storage box according to the present invention;

fig. 5 is a schematic structural view of the mounting frame in the present invention.

In the figure: 1. a setting frame; 101. reinforcing the inner support; 102. a connecting frame; 103. a mounting rod; 1031. reinforcing the support rod; 1032. a connecting plate; 104. a fixing frame; 1041. a pipeline fixing clamp; 105. a first stacking table; 106. a second stacking table; 107. a guide wheel; 1071. a rotating shaft; 2. a suction duct; 201. anti-blocking pipe head; 3. a storage box; 301. a fixed rod; 302. tilting the box opening; 303. penetrating a groove; 4. a hoist; 401. a guy cable; 5. cleaning the piece; 501. a driving motor; 5011. a driving wheel; 502. a drive chain; 503. a driving shaft; 5031. driven wheel; 504. a side frame; 5041. a connecting rod; 5042. a hook; 505. a driven shaft; 506. a belt wheel; 507. a transmission belt; 5071. a poking claw; 5072. and (5) a plug-in seat.

Detailed Description

The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.

Examples

As shown in fig. 1, 2, 3, 4 and 5, one embodiment of the present invention proposes: a dredging device for a water conservancy river comprises a setting frame 1, a suction pipeline 2, a storage box 3, a winch 4 and a cleaning piece 5, wherein the setting frame 1 is fixedly connected with the suction pipeline 2 through a fixing frame 104, sludge on a river bed is extracted by utilizing the suction pipeline 2 to achieve the purpose of sludge cleaning, the cleaning piece 5 is rotationally connected on a connecting frame 102 at the lower part of the setting frame 1 and is used for effectively cleaning garbage in river water before the sludge is sucked and cleaned, and simultaneously stirring and loosening a sludge layer on the river bed to enable the sludge, the river water and the mixed river water to form slurry, thereby facilitating subsequent and smooth suction and cleaning operations, improving dredging efficiency, the inhaul cables 401 are fixedly connected on side frames 504 on two sides of the cleaning piece 5 and are wound on the winch 4, the inhaul cables 401 are conveniently used for carrying out retraction and placement operations in the use process, utilize the receive and release of cable 401 to drive the lower extreme of clearance piece 5 and reciprocate, debug the position of clearance piece 5 lower extreme, ensure that the lower extreme of clearance piece 5 is not contradicted on the riverbed, ensure that whole device can be under traction drive equipment's drive smooth and easy removal, accomplish smooth operation and desilting's purpose, the transmission is connected with the drive belt 507 on driving shaft 503 and the driven shaft 505 that rotate the connection on the side bearer 504, the equidistant setting has stirring claw 5071 on the drive belt 507, stirring claw 5071's setting is convenient for carry out effectual stirring to the silt layer and becomes flexible, simultaneously also separate the rubbish clearance in the river, reach the effective treatment of river environment, and one side of clearance piece 5 is provided with containing box 3, be convenient for with the effectual collection of rubbish that cleans is deposited, in order to carry out effectual processing subsequently.

As shown in fig. 1, 2 and 3, in some embodiments, the integrally arranged socket 5072 of the driving belt 507 is in plug connection with the stirring claw 5071, the stirring claw 5071 is stably installed on the driving belt 507 and moves along with the driving belt 507 in the running process, the tail end of the stirring claw 5071 is bent towards one side, the bending arrangement mode of the end part of the stirring claw 5071 is convenient for preventing garbage from slipping off the stirring claw 5071 in the process of driving garbage in river water to move upwards, the garbage cleaning efficiency is improved, tooth grooves arranged in the driving belt 507 are meshed with teeth on the belt pulley 506, the belt pulley 506 is effectively driven, the driving belt 507 is effectively operated, the belt pulley 506 is fixedly connected at the positions of the driving shaft 503 and the driven shaft 505 where the driving belt 507 is installed, the belt pulley 506 is used as a driving part between the driving shaft 503 and the driven shaft 505 and the driving belt 507, the driving shaft 503 and the driven shaft 505 are both connected with the side frame 504 through bearings in a rotating way, the side frame 504 is used as a frame body for installing the driving belt 507 to stably install the driving belt 507, the driving shaft 503 is connected with the connecting frame 102 in a rotating way to ensure that the cleaning piece 5 can smoothly rotate on the connecting frame 102, thereby debugging the position of the lower end of the cleaning piece 5, smoothly debugging is realized, the driven wheel 5031 fixedly connected with one end of the driving shaft 503 is connected with the driving wheel 5011 on the output shaft of the driving motor 501 through a driving chain 502 in a driving way, the driving motor 501 is fixedly arranged on a second placing table 106 arranged on the placing frame 1, the driving motor 501 is conveniently and stably installed on the placing frame 1, and in the running process, the driving belt 507 can be effectively driven by transmitting power to the driving shaft 503 through the driving chain 502, and the driving belt 507 is arranged between the side frames 504 at equal intervals and is in one-to-one correspondence with the pulleys 506 on the driving shaft 503 and the driven shaft 505, so that stable driving operation is realized, the connecting rods 5041 are fixedly connected between the side frames 504, the integral strength of the side frames 504 is improved by the connecting rods 5041, stable use is ensured, the hooks 5042 which are fixedly connected with the lap joint inhaul cable 401 at the lower parts of the side frames 504, stable connection between the side frames 504 and the inhaul cable 401 is realized, the inhaul cable 401 can pull the whole cleaning piece 5 to rotate on the connecting frame 102, the lower end position of the cleaning piece 5 is regulated, simultaneously in the use process, stirring claws 5071 on the cleaning piece 5 can stir a silt layer deposited on a river bed, the purpose of loosening the silt layer is realized, the silt and river water are mixed together to form mud, the subsequent suction cleaning is facilitated, the suspended and floating garbage in the river water is cleaned out in the moving process of the stirring claws 5071, the river water is conveyed to the storage box 3 for temporary storage, the garbage is subjected to subsequent centralized treatment, the cleaning is realized, the garbage is effectively treated, the environmental treatment is realized, and the environmental treatment is realized.

As shown in fig. 1 and fig. 4, in some embodiments, fixing rods 301 are fixedly connected to the outer walls of two sides of the storage box 3, the upper ends of the fixing rods 301 are detachably connected to the mounting frame 1, the storage box 3 is stably installed at the lower portion of the mounting frame 1 by using the fixing rods 301, suspended and floating garbage cleaned out of the cleaning piece 5 is effectively collected, unified processing operation is convenient to follow, an inclined box opening 302 is formed in one side, close to the cleaning piece 5, of the storage box 3, garbage falling from the cleaning piece 5 is conveniently and smoothly collected in the storage box 3 from the inclined box opening 302, through grooves 303 matched with stirring claws 5071 are formed in the inclined box opening 302, the stirring claws 5071 can smoothly penetrate through the inclined box opening 302, garbage is effectively separated by using blocking of the inclined box opening 302, uniformly distributed drain holes are formed in the bottom of the storage box 3, the garbage is convenient to separate water doped in the garbage, and the garbage is convenient to follow-up for processing.

As shown in fig. 1 and 5, in some embodiments, a reinforced inner bracket 101 is fixedly connected between the installation frames 1, the overall strength of the installation frames 1 is enhanced, stable installation of each component is ensured in the use process, the components are matched together for use, suction cleaning operation of riverbed sludge is performed, a winch 4 is fixedly connected to a first stacking table 105 arranged on the reinforced inner bracket 101, a winding roller for winding a guy cable 401 is arranged on the winch 4, the winch 4 is stably installed by the first stacking table 105, effective winding and unwinding operation is performed on the guy cable 401, a hanging ring matched with a hanging hook 5042 is fixedly connected to one end of the guy cable 401, one end of the guy cable 401 is ensured to be stably fixed on the hanging hook 5042, effective driving is performed on a cleaning piece 5 in the winding and unwinding process of the guy cable 401, the position of the lower end of the cleaning piece 5 is adjusted, the cleaning piece 5 is prevented from being abutted on the riverbed, ensure smooth cleaning of subsequent sludge, and the inhaul cable 401 is placed in a rope groove formed on the guide wheel 107, the guide wheel 107 is rotationally connected on the mounting frame 1 through the rotating shaft 1071, the guide wheel 107 is stably mounted on the mounting frame 1 through the rotating shaft 1071, meanwhile, the guide wheel 107 smoothly rotates on the rotating shaft 1071, further, the inhaul cable 401 is effectively guided, the winch 4 can effectively retract and release the inhaul cable 401, the rope groove formed on the guide wheel 107 enables the inhaul cable 401 to be stably placed on the guide wheel 107, slipping off from the guide wheel 107 in the retracting process of the inhaul cable 401 is avoided, stable and smooth retracting operation is achieved, one side of the mounting frame 1 is fixedly connected with the mounting rod 103, a reinforcing support rod 1031 is fixedly connected between the mounting rod 103 and the mounting frame 1, the connecting strength between the mounting rod 103 and the mounting frame 1 is lifted through the reinforcing support rod 1031, and stable connection of the two is ensured, the end position department fixedly connected with connecting plate 1032 of installation pole 103, the connecting plate 1032 of setting is convenient for be as the mounting base, the cooperation bolt is together used, accomplish the effective connection between this desilting device and the traction drive equipment with the stable fixed connection of installation pole 103 on traction drive equipment's the mounting platform, and the equal fixed connection in both ends of mount 104 is on the installation pole 103, suction pipe 2 passes through pipeline fixed clamp 1041 fixed connection on mount 104, utilize the cooperation between mount 104 and the pipeline fixed clamp 1041, install suction pipe 2 stable on settling frame 1, and communicate suction pipe 2's the other end to the desilting suction pump, ensure in the use, utilize the cooperation between the two to carry out effectual suction clearance to silt on the riverbed, and carry temporary storage in the silt of suction, with waiting subsequent handling, prevent blocking up the pipe head 201, be provided with on the anti-blocking grid and agitator on the anti-blocking pipe head 201 in the use, with big particle diameter's solid particle pulling down, get into suction pipe 2 smoothly and get into suction pipe 2, the position is smooth and easy to be rotated with the suction pipe, the position is guaranteed to mix the silt with the suction, the smooth and the position is guaranteed to be convenient for the stirring in the pump, the position is rotated along with the suction position is convenient for the suction, the pump is guaranteed, the mud is easy to be mixed with the suction position of the suction position is easy to be pumped.

s1, during installation, a bolt is used for fixedly connecting an installation rod 103 on an installation frame 1 to traction driving equipment, so that the installation of the whole dredging device is completed, and in the subsequent dredging process, the whole dredging device is driven by the traction driving equipment;

s2, when the cleaning device is used, the winch 4 is started to retract the inhaul cable 401, and the inhaul cable 401 pulls one end of the cleaning piece 5 to move up and down along with the retraction of the inhaul cable 401, at the moment, the side frame 504 of the cleaning piece 5 rotates on the connecting frame 102, and the position of the lower end of the whole cleaning piece 5 is adjusted, so that the lower end of the cleaning piece 5 is directly placed in a silt layer of a river bed, and the lower end of the cleaning piece 5 is ensured not to collide with the hard river bed;

s3, after the position adjustment of the cleaning piece 5 is completed, starting a driving motor 501, driving a driving shaft 503 to rotate on a side frame 504 through a driving chain 502, driving a driving belt 507 to rotate through a belt pulley 506 in the rotating process of the driving shaft 503, driving a pulling claw 5071 to move in the rotating process of the driving belt 507, stirring sludge deposited on a riverbed by the pulling claw 5071 in the moving process, loosening and stirring the sludge, driving garbage suspended and floating in river water to an inclined box opening 302 position in a storage box 3, and falling into the storage box 3, wherein water doped in the garbage is discharged from a drain hole at the bottom of the storage box 3;

s4, after the pulling claw 5071 stirs a silt layer deposited on the riverbed, starting a pump body for pumping the silt, and leading the silt mixed with the river water to enter the pumping pipeline 2 from the anti-blocking pipe head 201, so that pumping and cleaning of the silt on the riverbed are completed, and the silt is conveyed into a temporary storage bin for storage for subsequent treatment.

Finally, it should be noted that: the foregoing description is only a preferred embodiment of the present invention, and the present invention is not limited thereto, but it is to be understood that modifications and equivalents of some of the technical features described in the foregoing embodiments may be made by those skilled in the art, although the present invention has been described in detail with reference to the foregoing embodiments. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a dredging device of water conservancy river course, includes rack (1), suction pipeline (2), containing box (3), hoist engine (4) and clearance piece (5), its characterized in that: the suction pipe is fixedly connected with the suction pipe (2) through the fixing frame (104) on the placement frame (1), the cleaning piece (5) is rotationally connected to the connecting frame (102) at the lower part of the placement frame (1), the inhaul cable (401) is fixedly connected to the side frames (504) at two sides of the cleaning piece (5) and is wound on the winch (4), the driving shaft (503) and the driven shaft (505) which are rotationally connected to the side frames (504) are in transmission connection with the driving belt (507), the stirring claws (5071) are equidistantly arranged on the driving belt (507), and one side of the cleaning piece (5) is provided with the storage box (3).

2. The dredging device for the water conservancy river channel according to claim 1, wherein: the integrated type transmission belt (507) is characterized in that a plug-in seat (5072) arranged integrally is connected with a poking claw (5071) in a plug-in manner, the tail end of the poking claw (5071) is bent towards one side, tooth grooves arranged in the transmission belt (507) are meshed with tooth teeth on a belt wheel (506), the belt wheel (506) is fixedly connected to a driving shaft (503) and a driven shaft (505) at the position where the transmission belt (507) is installed, and the driving shaft (503) and the two ends of the driven shaft (505) are rotationally connected with a side frame (504) through bearings, and the driving shaft (503) is rotationally connected with a connecting frame (102).

3. The dredging device for the water conservancy river channel according to claim 2, wherein: driven wheel (5031) of driving shaft (503) one end fixed connection passes through drive chain (502) and is connected with driving wheel (5011) on driving motor (501) output shaft transmission, and driving motor (501) fixed mounting is put on second of setting up on rack (1) put up bench (106), and driving belt (507) equidistant are settled between side bearer (504), and pulley (506) one-to-one setting on driving shaft (503) and driven shaft (505), fixedly connected with connecting rod (5041) between side bearer (504), and couple (5042) of overlap joint cable (401) are connected with in side bearer (504) lower part fixedly.

4. The dredging device for the water conservancy river channel according to claim 1, wherein: fixedly connected with dead lever (301) on the outer wall of containing box (3) both sides, the upper end of dead lever (301) can be dismantled and connect on rack (1), and one side that containing box (3) is close to clearance piece (5) is provided with slope case mouth (302), has seted up on slope case mouth (302) and has cooperated and stir groove (303) of claw (5071) to evenly distributed's leak hole has been seted up to the bottom of containing box (3).

5. The dredging device for the water conservancy river channel according to claim 1, wherein: the reinforced inner support (101) is fixedly connected to the position between the placement frames (1), the winch (4) is fixedly connected to the first placing table (105) arranged on the reinforced inner support (101), the winding roller for winding the inhaul cable (401) is arranged on the winch (4), the hanging ring matched with the hanging hook (5042) is fixedly connected to one end of the inhaul cable (401), the inhaul cable (401) is placed in a rope groove formed in the guide wheel (107), and the guide wheel (107) is rotatably connected to the placement frames (1) through the rotating shaft (1071).

6. The dredging device for the water conservancy river channel according to claim 5, wherein: one side fixedly connected with installing pole (103) of installing frame (1), fixedly connected with reinforcing strut (1031) between installing pole (103) and installing frame (1), end position department fixedly connected with connecting plate (1032) of installing pole (103), and the equal fixedly connected with in both ends of mount (104) are on installing pole (103), suction pipe (2) pass through pipeline fixed clamp (1041) fixed connection on mount (104), the lower extreme fixedly connected with of suction pipe (2) prevents stifled tube head (201), is provided with on preventing stifled tube head (201) and draws fender grid and agitator.

7. A dredging method of a dredging apparatus for a water conservancy river according to any one of claims 1-6, comprising the steps of:

s1, during installation, a mounting rod (103) on the mounting frame (1) is fixedly connected to traction driving equipment by using bolts, the whole dredging device is installed, and in the subsequent dredging process, the whole dredging device is driven by the traction driving equipment;

s2, when the cleaning device is used, the winch (4) is started to retract the inhaul cable (401), and the inhaul cable (401) pulls one end of the cleaning piece (5) to move up and down along with the retraction of the inhaul cable (401), at the moment, the side frame (504) of the cleaning piece (5) rotates on the connecting frame (102), and the position of the lower end of the whole cleaning piece (5) is adjusted, so that the lower end of the cleaning piece (5) is directly placed in a silt layer of a river bed, and the lower end of the cleaning piece (5) is ensured not to be abutted to the hard river bed;

s3, after position debugging of the cleaning piece (5) is completed, a driving motor (501) is started, the driving motor (501) drives a driving shaft (503) to rotate on a side frame (504) through a transmission chain (502), a rotating shaft (503) drives a transmission belt (507) to rotate through a belt wheel (506) in the rotating process, a pulling claw (5071) is driven to move in the rotating process of the transmission belt (507), the pulling claw (5071) stirs sludge deposited on a riverbed in the moving process, loosening and stirring of the sludge are achieved, and garbage suspended and floating in river water is driven to an inclined box opening (302) position in a containing box (3) and falls into the containing box (3), and water doped in the garbage is discharged from a leak hole at the bottom of the containing box (3);

s4, after the pulling claw (5071) agitates a silt layer deposited on the riverbed, starting a pump body for pumping the silt, and leading the silt mixed with the river water to enter the pumping pipeline (2) from the anti-blocking pipe head (201), so that the pumping cleaning of the silt on the riverbed is completed, and the silt is conveyed into a temporary storage bin for storage for later treatment.