CN118087468B

CN118087468B - Desilting device for hydraulic engineering

Info

Publication number: CN118087468B
Application number: CN202410479691.1A
Authority: CN
Inventors: 冯滔; 王家贵; 李军科; 张兵; 王功存; 王开进
Original assignee: Sinohydro Bureau 9 Co Ltd
Current assignee: Sinohydro Bureau 9 Co Ltd
Filing date: 2024-04-22
Publication date: 2024-07-02
Anticipated expiration: 2044-04-22

Abstract

The invention belongs to the technical field of dredging equipment, and discloses a dredging device for hydraulic engineering, wherein two ends of a horizontal dam body are respectively connected with the upper ends of two vertical dam bodies; two sides of the sluice body are respectively connected to two vertical dam bodies in a sliding way, and a sluice driving device is arranged on the horizontal dam body; the middle part of the upstream surface of the sluice body is provided with a dredging component, the dredging component comprises a central plate and an annular dredging belt which is rotatably arranged on the surface of the central plate, two sides of one end of the central plate are movably connected to the sluice body, and the annular dredging belt can rotate along with the lifting of one end of the central plate on the sluice body; a driving mechanism is arranged on the horizontal dam body; the driving mechanism comprises an upper winding wheel and a driving motor for driving the upper winding wheel to rotate, and a lifting rope connected with the driving dredging component is wound on the upper winding wheel. The invention can lift the dredging component, can control the rotation of the annular dredging belt while lifting the dredging component, and effectively realize dredging of the upstream surface of the sluice.

Description

Desilting device for hydraulic engineering

Technical Field

The invention belongs to the technical field of dredging equipment, and particularly relates to a dredging device for hydraulic engineering.

Background

The water conservancy facilities generally comprise dams, drainage channels, aqueducts and the like or related equipment, the drainage channels or the aqueducts are used for agricultural irrigation, the sluice for sectionally adjusting water quantity is generally arranged in a water channel of the water channel, the opening and closing position of the sluice, particularly the upstream surface bottom for blocking the water flow direction, often accumulates sludge formed by a plurality of impurities, the sludge not only affects the normal opening and closing of the sluice, but also blocks the sluice, the sluice which is generally distributed at present is a whole plate sluice which is vertically and slidingly opened and closed, the side edge and the bottom of the sluice are corresponding to the dam body around the sluice are provided with corresponding sliding grooves, the bottom or the side edge of the sluice is generally provided with deformable water stop plates, and the water stop plates are made of rubber materials or variable metals and are used for being in butt joint with grooves at the bottom of the sluice dam body to realize sealing and water blocking functions.

The silt of general soft mud class stacks up and can be broken up by high-speed rivers at the in-process of opening a floodgate water face bottom to can not produce serious jam or influence the condition of floodgate body, but to many drainage canals or aqueducts, the surface of water can drop many suspended solid, some be difficult to disperse impurity such as thicker branch, glass bottle etc. the water bottom also gathers a lot of stones, these surface of water impurity mix and can consolidate the structural strength of silt in soft mud, on the one hand silt is difficult to be effectively broken up at the in-process of opening a floodgate, on the other hand influences very big problem: when the impurities with larger hard sizes roll down to the sliding groove of the sluice to open and close along with the sluice water flow, the water stop plate can be deformed and damaged in the non-design direction when the sluice is closed, so that the side edge or the bottom edge of the sluice body can not finish sealing action, and the water stop plate of the sluice thoroughly loses the water stop sealing action in the long term.

There are also many devices for dredging the bottom of a sluice, generally including enclosing the baffle member, namely set up and enclose the baffle member, when silt is too much, drive and enclose the baffle member to rise, with the direct vacation clearance of original silt accumulation position, the second is through the initiative cleaning device of built-in the bottom of the sluice, utilize suction or rotatory mode of cleaning, directly break up or shift silt, these can realize the silt accumulation problem of sluice upstream face to a certain extent, but lack the influence to the debris in the sluice open and shut the in-process, for example, the big branch that the surface of water floats, this kind of condition opens the sluice, the clearance member of built-in bottom of the sluice can't carry out effective clearance, when sluice bottom is opened, the surface of water rivers subside rapidly and carry the floater towards the opening flow, at this moment the large-size floater is very easy to block in the recess of stagnant water when opening through the bottom, for example, the initial stage of opening the sluice, high-speed rivers can be blown down the soft mud of sluice upstream face, and then drive a lot of stones and begin to roll, the large-size stones once do not cross the recess of the stagnant water board, pile up and will cause the injury to the sluice.

Therefore, although some existing dredging devices can perform independent dredging operation, the influence of large-size impurities on the water surface or the water bottom on the grooves of the water stop plate cannot be effectively prevented according to the opening and closing state of the sluice, long-term stable operation of some electronic control equipment built in the water is difficult, the existing dredging devices are not suitable for the application scene of the actual vast small-scale sluice, and cannot be popularized and applied, and based on the existing dredging devices, a new dredging device needs to be designed to solve the problems.

Disclosure of Invention

The invention aims to provide a dredging device for hydraulic engineering, which is used for solving the problems in the prior art.

In order to achieve the above purpose, the present invention adopts the following technical scheme:

the dredging device for the hydraulic engineering comprises a dam body and a sluice body, wherein the dam body and the sluice body are arranged in a ditch, the dam body comprises vertical dam bodies positioned at two sides of the ditch and a horizontal dam body positioned above the sluice body, and two ends of the horizontal dam body are respectively connected with the upper ends of the two vertical dam bodies; the two sides of the sluice body are respectively connected to the two vertical dam bodies in a sliding way, and a sluice driving device for driving the sluice body to lift between the two vertical dam bodies is arranged on the horizontal dam body; the middle part of the upstream surface of the sluice body is provided with a dredging component which is horizontally paved in the ditch, the dredging component comprises a central plate and an annular dredging belt which is rotatably arranged on the surface of the central plate, two sides of one end of the central plate are movably connected to the sluice body along the vertical direction, and the annular dredging belt can rotate along with the lifting of one end of the central plate on the sluice body; a driving mechanism for driving the dredging component to lift is arranged on the horizontal dam body; the driving mechanism comprises an upper winding wheel and a driving motor for driving the upper winding wheel to rotate, and a lifting rope connected with a driving dredging assembly (4) is wound on the upper winding wheel.

As a preferable technical scheme in the invention, the middle part of the front surface of the sluice body is provided with a containing groove for containing a vertically arranged dredging component, the sluice bodies at two sides of the containing groove are respectively provided with a vertical chute, two sides of one end of the central plate are respectively connected with a first rotating shaft through a first bearing in a rotating way, one end of the first rotating shaft far away from the central plate is respectively connected with a second bearing, and the two second bearings are respectively matched and rolled in the two vertical chutes.

As a preferable technical scheme in the invention, a vertical rolling groove is arranged on a sluice body between the vertical sliding groove and the containing groove, the width of the vertical rolling groove is smaller than that of the vertical sliding groove, and a vertical rack is arranged on the inner wall of one side of the vertical rolling groove; a first gear is arranged on the first rotating shaft, one side of the first gear is engaged with the vertical rack in a matching way, and the other side of the first gear is arranged at intervals with the other side of the vertical rolling groove; and the first rotating shaft is also provided with a second gear positioned between the first gear and the central plate, and annular toothed belts respectively meshed with the two second gears are respectively arranged on the inner walls of the two sides of the annular dredging belt.

As a preferable technical scheme in the invention, the vertical rack is positioned at the outer side of the vertical rolling groove, a lower winding wheel is arranged on a first rotating shaft at the inner side of the vertical rack, and the lower end of the lifting rope is wound on the lower winding wheel.

As a preferable technical scheme in the invention, the driving mechanism further comprises two bearing seats, the upper winding wheel is coaxially connected with a second rotating shaft, two ends of the second rotating shaft are respectively arranged on the two bearing seats, and a motor shaft of the driving motor is connected with the second rotating shaft.

As a preferable technical scheme in the invention, at least two annular sliding grooves are arranged on the inner wall of the annular dredging belt, at least two limiting ball groups are arranged on the surface of the central plate, each limiting ball group is arranged corresponding to one annular sliding groove, each limiting ball group comprises a plurality of first balls embedded in the surface of the central plate, and all the first balls in each limiting ball group are uniformly distributed in one annular sliding groove.

As a preferable technical scheme in the invention, the upper surface, the lower surface and the outer surfaces of the two ends of the annular dredging belt are embedded with a plurality of second rolling balls, and when the dredging assembly is horizontally arranged, the second rolling balls on the lower surface of the annular dredging belt are contacted with the inner bottom surface of the ditch.

As a preferable technical scheme in the invention, one end of the first rotating shaft is provided with an elastic clamping piece, and the inner wall of the upper end of the vertical sliding chute is provided with a temporary positioning clamping groove which is matched and clamped with the elastic clamping piece.

As a preferable technical scheme in the invention, a T-shaped chute is formed at one end of the first rotating shaft, the elastic clamping piece is a T-shaped ladder column which is matched and slides in the T-shaped chute, and a compression spring is arranged between the elastic clamping piece and the inner bottom surface of the T-shaped chute; one end of the elastic clamping piece far away from the compression spring can slide out of the spherical head structure in a matching way from the T-shaped chute outlet; the temporary positioning clamping groove is a ball groove matched with the ball head structure, and the depth of the temporary positioning clamping groove is smaller than the radius of the temporary positioning clamping groove.

As a preferable technical scheme in the invention, the first rotating shaft comprises a rotating section rotationally connected with the central plate and a clamping section in threaded connection with the rotating section at one end of the first rotating shaft; the T-shaped sliding groove is arranged on the clamping section, the T-shaped sliding groove penetrates through two ends of the clamping section, and one end of the rotating section is provided with an elastic adjusting column which extends into the T-shaped sliding groove and is propped against the compression spring.

The beneficial effects are that: the invention is provided with the desilting component capable of lifting in the middle of the upstream surface of the sluice body, the desilting component comprises the central plate and the annular desilting belt rotationally arranged on the surface of the central plate, two sides of one end of the central plate are movably connected to the sluice body along the vertical direction, so that the connection of the desilting component and the sluice body is realized, the central plate is ensured to be relatively stable, the annular desilting belt is limited on the upstream surface of the sluice body by utilizing the central plate, wherein the annular desilting belt can rotate along with the lifting of one end of the central plate on the sluice body, further, the treatment of the upstream surface of the sluice body is realized, such as the scattering of accumulated soil, the crushing of branches and the like, the possibility that impurities are stably entangled in a ditch is reduced, and further, after the desilting component lifts up, the water flow in the ditch can wash the impurities away, and the desilting of the upstream surface of the sluice is effectively realized.

Drawings

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

FIG. 2 is an enlarged schematic view of portion A of FIG. 1;

FIG. 3 is a side view of the dredging assembly of the present invention;

FIG. 4 is a schematic view of a driving mechanism according to the present invention;

Fig. 5 is a schematic view of a part of the structure of the present invention.

In the figure: 1-a dam body; 11-vertical dam body; 12-a horizontal dam body; 2-a sluice body; 21-a receiving groove; 22-vertical sliding grooves; 23-a second bearing; 24-vertical racks; 25-a first gear; 26-a lower reel; 27-lifting ropes; 3-sluice drive means; 4-dredging components; 41-a central panel; 42-an annular dredging belt; 43-first bearing; 44-a first spindle; 45-a second gear; 46-an endless toothed belt; 47-a first ball; 48-a second ball; 5-a driving mechanism; 51-winding wheel; 52-driving a motor; 53-bearing seats; 6-elastic clamping pieces; 7-compression springs.

Detailed Description

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the present invention will be briefly described below with reference to the accompanying drawings and the description of the embodiments or the prior art, and it is obvious that the following description of the structure of the drawings is only some embodiments of the present invention, and other drawings can be obtained according to these drawings without inventive effort to a person skilled in the art. It should be noted that the description of these examples is for aiding in understanding the present invention, but is not intended to limit the present invention.

Examples:

As shown in fig. 1-5, the present embodiment provides a dredging device for hydraulic engineering, which comprises a dam body 1 and a sluice body 2 installed in a ditch, wherein the dam body 1 comprises vertical dam bodies 11 positioned at two sides of the ditch and a horizontal dam body 12 positioned above the sluice body 2, and two ends of the horizontal dam body 12 are respectively connected with upper ends of the two vertical dam bodies 11; the two sides of the sluice body 2 are respectively connected to the two vertical dam bodies 11 in a sliding manner, the sluice driving device 3 for driving the sluice body 2 to lift between the two vertical dam bodies 11 is arranged on the horizontal dam body 12, and the sluice is simple in sluice, the sluice body 2 is put down through the sluice driving device 3, circulation of a water channel is blocked, and water is discharged after the sluice body 2 is lifted.

The middle part of the upstream surface of the sluice body 2 is provided with a dredging component 4 which is paved in the sluice body 2, the middle part is provided with a state of the dredging component 4, the dredging component 4 is not limited to change to other states such as standing, the dredging component 4 comprises a central plate 41 and an annular dredging belt 42 which is rotatably arranged on the surface of the central plate 41, two sides of one end of the central plate 41 are movably connected to the sluice body 2 along the vertical direction, the connection of the dredging component 4 and the sluice body 2 is realized, the relative stability of the central plate 41 is ensured, the annular dredging belt 42 is limited on the upstream surface of the sluice body 2 by the central plate 41, the annular dredging belt 42 can rotate along with the lifting of one end of the central plate 41 on the sluice body 2, so that when the height of one end of the central plate 41 changes, the annular dredging belt 42 can rotate outside the central plate 41 at any time, the treatment of the upstream surface of the sluice body 2 is realized, such as the scattering of accumulated soil, the branch is pressed off, the possibility of the impurities is reduced, the impurities are stably entangled in the sluice body 2, the upstream surface of the sluice body is further, the component 4 is lifted, and the impurities can be washed away; the horizontal dam body 12 is provided with a driving mechanism 5 for driving the dredging assembly 4 to lift, so that the dredging assembly 4 can be lifted, specifically, the driving mechanism 5 comprises an upper winding wheel 51 and a driving motor 52 for driving the upper winding wheel 51 to rotate, a lifting rope 27 connected with the driving dredging assembly 4 is wound on the upper winding wheel 51, the driving motor 52 drives the upper winding wheel 51 to rotate, and then the lifting rope 27 can be wound or unwound, so that the dredging assembly 4 can be lifted.

The invention is provided with the desilting component 4 which can be lifted and lowered in the middle of the upstream surface of the sluice body 2, the desilting component 4 comprises the central plate 41 and the annular desilting belt 42 which is rotatably arranged on the surface of the central plate 41, two sides of one end of the central plate 41 are movably connected to the sluice body 2 along the vertical direction, the connection between the desilting component 4 and the sluice body 2 is further realized, the relatively stable central plate 41 is ensured, the annular desilting belt 42 is limited on the upstream surface of the sluice body 2 by utilizing the central plate 41, wherein the annular desilting belt 42 can rotate along with the lifting of one end of the central plate 41 on the sluice body 2, the treatment of the upstream surface of the sluice body 2 is further realized, such as the scattering of accumulated soil, the crushing of branches and the like are reduced, the possibility that impurities are stably entangled in a sluice is further reduced, and after the desilting component 4 is lifted, the water flow in the sluice can wash the impurities away, and the desilting of the upstream surface of the sluice is effectively realized.

As a preferred embodiment in this embodiment, it needs to be further explained that, the front middle portion of the sluice body 2 is provided with a containing groove 21 for containing the vertically arranged dredging component 4, at ordinary times, the dredging component 4 can be selectively laid and arranged, and also can be selectively arranged vertically, according to practical situations, the embodiment does not specifically limit, and when the dredging component 4 is vertically arranged, the dredging component 4 is slightly inclined to the water facing surface of the sluice body 2, so that the dredging component 4 can swing to the water facing surface of the sluice body 2 when falling to the ground, vertical sliding grooves 22 are all arranged on the sluice bodies 2 at two sides of the containing groove 21, two sides of one end of the central plate 41 are respectively connected with a first rotating shaft 44 through first bearings 43, one end of the first rotating shaft 44, far away from the central plate 41, is respectively connected with a second bearing 23, and the two second bearings 23 are respectively matched and rolled in the two vertical sliding grooves 22, so that the dredging component 4 can stably lift along the two vertical sliding grooves 22, and the friction force is relatively small, and meanwhile, the dredging component 4 is allowed to swing.

As a preferred embodiment in this embodiment, it should be further explained that a vertical rolling groove is provided on the sluice body 2 between the vertical chute 22 and the accommodating groove 21, the width of the vertical rolling groove is smaller than that of the vertical chute 22, the stability of the second bearing 23 is ensured, and a vertical rack 24 is mounted on the inner wall of one side of the vertical rolling groove; the first rotating shaft 44 is provided with a first gear 25, one side of the first gear 25 is engaged with the vertical rack 24 in a matching manner, and the other side of the first gear 25 is arranged at intervals with the other side of the vertical rolling groove, so that when the dredging component 4 is lifted, the first gear 25 rolls along the vertical rack 24, and further the first rotating shaft 44 can be driven to rotate, for example, when the sluice body 2 is lifted, the dredging component 4 relatively moves downwards, and at the moment, the vertical rack 24 drives the first gear 25 to rotate, and further drives the first rotating shaft 44 to rotate; the first rotating shaft 44 is also provided with a second gear 45 positioned between the first gear 25 and the central plate 41, the inner walls of the two sides of the annular dredging belt 42 are respectively provided with annular toothed belts 46 meshed with the two second gears 45, the second gears 45 rotate along with the rotation of the first rotating shaft 44, and then the second gears 45 drive the annular toothed belts 46 to rotate, so that the rotation control of the annular dredging belt 42 is realized.

As a preferred embodiment of this embodiment, it should be further explained that the vertical rack 24 is located at the outer side of the vertical rolling groove (the outer side herein refers to the outer side of the side wall), the lower reel 26 is mounted on the first rotating shaft 44 at the inner side of the vertical rack 24 (the inner side herein refers to the inner side of the side wall), the lower end of the lifting rope 27 is wound on the lower reel 26, in practice, when the dredging assembly 4 is lifted, the driving mechanism 5 will also act, so as to ensure the stability of the dredging assembly 4, and at the same time, ensure that the lifting rope 27 is in a tight state, and when the driving mechanism 5 winds the lifting rope 27, the lifting control of the dredging assembly 4 can be realized.

As a preferred embodiment of the present embodiment, it should be further described that the driving mechanism 5 further includes two bearing seats 53, the upper reel 51 is coaxially connected with a second rotating shaft, two ends of the second rotating shaft are respectively mounted on the two bearing seats 53, so that stability of the upper reel 51 can be enhanced while flexibility of the upper reel 51 is ensured, and a motor shaft of the driving motor 52 is connected with the second rotating shaft.

As a preferred embodiment of the present embodiment, it should be further explained that at least two annular sliding grooves are provided on the inner wall of the annular dredging belt 42, at least two limiting roller groups are provided on the surface of the central plate 41, each limiting roller group is disposed corresponding to one annular sliding groove, so as to realize rotation limiting of the annular dredging belt 42 on the central plate 41, each limiting roller group includes a plurality of first rollers 47 embedded on the surface of the central plate 41, all the first rollers 47 in each limiting roller group are uniformly distributed in one annular sliding groove, so that the annular dredging belt 42 can rotate stably on the central plate 41, and meanwhile, the friction force is relatively small.

As a preferred embodiment of this embodiment, it should be further explained that, the upper surface, the lower surface and the outer surfaces of the two ends of the annular dredging belt 42 are embedded with a plurality of second rolling balls 48, when the dredging assembly 4 is horizontally arranged, the second rolling balls 48 on the lower surface of the annular dredging belt 42 are in contact with the inner bottom surface of the water channel, and the second rolling balls 48 are arranged, so that the lower surface of the annular dredging belt 42 is in an uneven structure at any time, and the stable structure of the bottom of the water channel is easier to be damaged, so that impurities at the bottom of the water channel are easy to be washed away by water.

As a preferred implementation manner in this embodiment, it needs to be further explained that, the elastic clamping piece 6 is installed at one end of the first rotating shaft 44, a temporary positioning clamping groove matched and clamped with the elastic clamping piece is provided on the inner wall of the upper end of the vertical chute 22, when the driving mechanism 5 drives the dredging assembly 4 to rise to a vertical state, the elastic clamping piece just can be clamped in the temporary positioning clamping groove, so that the stability of the dredging assembly 4 is enhanced, the load of the dredging assembly 4 on the driving mechanism 5 is reduced, and when the dredging assembly 4 descends, the gravity of the dredging assembly 4 can also enable the elastic clamping piece to be separated from the temporary positioning clamping groove, so that the flexibility of the dredging assembly 4 is not affected.

As a preferred embodiment in this embodiment, it should be further explained that, the T-shaped chute formed at one end of the first rotating shaft 44, the elastic clamping member 6 is a T-shaped stepped column that slides in the T-shaped chute in a matching manner, and a compression spring 7 is disposed between the elastic clamping member 6 and the inner bottom surface of the T-shaped chute, under normal conditions, the elastic clamping member 6 compresses the compression spring 7 due to the limit of the vertical chute 22 and is entirely located in the T-shaped chute, when the elastic clamping member 6 aligns with the temporary positioning slot, the compression spring 7 pushes the elastic clamping member 6 to slide, so that one end of the elastic clamping member 6 is clamped in the temporary positioning slot; one end of the elastic clamping piece 6 far away from the compression spring 7 can slide out of the T-shaped chute outlet in a matching way; the temporary positioning clamping groove is a ball groove matched with the spherical head structure, and the depth of the temporary positioning clamping groove is smaller than the radius of the temporary positioning clamping groove, so that the spherical head structure can be clamped in the temporary positioning clamping groove, and the elastic clamping piece 6 can not be damaged when the temporary positioning clamping groove is withdrawn.

As a preferred embodiment in this example, it should be further explained that the first rotating shaft 44 includes a rotating section rotatably connected to the central plate 41 and a clamping section screwed to the rotating section at one end of the first rotating shaft 44, so that the clamping section can be assembled and disassembled, and the elastic clamping member 6 and the compression spring 7 can be replaced; the T-shaped sliding groove is arranged on the clamping section, the T-shaped sliding groove penetrates through the two ends of the clamping section, an elastic adjusting column which extends into the T-shaped sliding groove and is propped against the compression spring 7 is arranged at one end of the rotating section, the depth of the elastic adjusting column entering the T-shaped sliding groove can be controlled, the compression force of the compression spring 7 is adjusted, and then the clamping force of the elastic clamping piece 6 and the temporary positioning clamping groove during clamping is adjusted in a fine-tuning mode.

Finally, it should be noted that: the foregoing description is only of the preferred embodiments of the invention and is not intended to limit the scope of the invention. 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 dredging device for the hydraulic engineering comprises a dam body (1) and a sluice body (2) which are arranged in a ditch, wherein the dam body (1) comprises vertical dam bodies (11) positioned on two sides of the ditch and a horizontal dam body (12) positioned above the sluice body (2), and two ends of the horizontal dam body (12) are respectively connected with the upper ends of the two vertical dam bodies (11); two sides of the sluice body (2) are respectively connected to the two vertical dam bodies (11) in a sliding way, and a sluice driving device (3) for driving the sluice body (2) to lift between the two vertical dam bodies (11) is arranged on the horizontal dam body (12); the water gate is characterized in that a dredging assembly (4) paved in a ditch is arranged in the middle of the upstream surface of the water gate body (2), the dredging assembly (4) comprises a central plate (41) and an annular dredging belt (42) rotatably arranged on the surface of the central plate (41), two sides of one end of the central plate (41) are movably connected to the water gate body (2) along the vertical direction, and the annular dredging belt (42) can rotate along with the lifting of one end of the central plate (41) on the water gate body (2); a driving mechanism (5) for driving the dredging component (4) to lift is arranged on the horizontal dam body (12); the driving mechanism (5) comprises an upper winding wheel (51) and a driving motor (52) for driving the upper winding wheel (51) to rotate, and a lifting rope (27) connected with the driving dredging assembly (4) is wound on the upper winding wheel (51); the water gate is characterized in that an accommodating groove (21) for accommodating a vertically arranged dredging component (4) is formed in the middle of the front surface of the water gate body (2), vertical sliding grooves (22) are formed in the water gate body (2) on two sides of the accommodating groove (21), a first rotating shaft (44) is rotatably connected to two sides of one end of the central plate (41) through a first bearing (43), a second bearing (23) is connected to one end, away from the central plate (41), of the first rotating shaft (44), and the two second bearings (23) are respectively matched and rolled in the two vertical sliding grooves (22); a vertical rolling groove is formed in the sluice body (2) between the vertical sliding groove (22) and the accommodating groove (21), the width of the vertical rolling groove is smaller than that of the vertical sliding groove (22), and a vertical rack (24) is arranged on the inner wall of one side of the vertical rolling groove; a first gear (25) is arranged on the first rotating shaft (44), one side of the first gear (25) is in matched engagement with the vertical rack (24), and the other side of the first gear (25) is arranged at intervals with the other side of the vertical rolling groove; the first rotating shaft (44) is also provided with a second gear (45) positioned between the first gear (25) and the central plate (41), and annular toothed belts (46) respectively meshed with the two second gears (45) are respectively arranged on the inner walls of the two sides of the annular dredging belt (42).

2. The dredging device for the hydraulic engineering according to claim 1, wherein the vertical rack (24) is located at the outer side of the vertical rolling groove, a lower winding wheel (26) is mounted on a first rotating shaft (44) at the inner side of the vertical rack (24), and the lower end of the lifting rope (27) is wound on the lower winding wheel (26).

3. The dredging device for hydraulic engineering according to claim 2, wherein the driving mechanism (5) further comprises two bearing seats (53), the upper reel (51) is coaxially connected with a second rotating shaft, two ends of the second rotating shaft are respectively arranged on the two bearing seats (53), and a motor shaft of the driving motor (52) is connected with the second rotating shaft.

4. A dredging device for hydraulic engineering according to any one of claims 1-3, wherein at least two annular sliding grooves are arranged on the inner wall of the annular dredging belt (42), at least two limit ball groups are arranged on the surface of the central plate (41), each limit ball group is arranged corresponding to one annular sliding groove, each limit ball group comprises a plurality of first balls (47) embedded on the surface of the central plate (41), and all the first balls (47) in each limit ball group are uniformly distributed in one annular sliding groove.

5. A dredging device for hydraulic engineering according to any one of claims 1-3, wherein the upper surface, the lower surface and the outer surfaces of both ends of the annular dredging belt (42) are embedded with a plurality of second rolling balls (48), and when the dredging assembly (4) is horizontally arranged, the second rolling balls (48) of the lower surface of the annular dredging belt (42) are contacted with the inner bottom surface of the ditch.

6. A dredging device for hydraulic engineering according to claim 2 or 3, wherein the elastic clamping member (6) is installed at one end of the first rotating shaft (44), and a temporary positioning clamping groove matched and clamped with the elastic clamping member is arranged on the inner wall of the upper end of the vertical sliding groove (22).

7. The dredging device for the hydraulic engineering according to claim 6, wherein a T-shaped chute is formed at one end of the first rotating shaft (44), the elastic clamping piece (6) is a T-shaped ladder column which is matched and slides in the T-shaped chute, and a compression spring (7) is arranged between the elastic clamping piece (6) and the inner bottom surface of the T-shaped chute; one end of the elastic clamping piece (6) far away from the compression spring (7) can slide out of the spherical head structure in a matching way from the outlet of the T-shaped chute; the temporary positioning clamping groove is a ball groove matched with the ball head structure, and the depth of the temporary positioning clamping groove is smaller than the radius of the temporary positioning clamping groove.

8. The dredging device for hydraulic engineering according to claim 7, wherein the first rotating shaft (44) comprises a rotating section rotatably connected with the central plate (41) and a clamping section in threaded connection with the rotating section at one end of the first rotating shaft (44); the T-shaped sliding groove is arranged on the clamping section, the T-shaped sliding groove penetrates through two ends of the clamping section, and an elastic adjusting column which extends into the T-shaped sliding groove and is propped against the compression spring (7) is arranged at one end of the rotating section.