阅读说明：本技术 一种新型水渠清淤装置 (Novel canal dredging device ) 是由 刘巨光 于 2020-06-30 设计创作，主要内容包括：一种新型水渠清淤装置,包括壳体结构、拉动结构、搅碎结构,壳体结构包括壳体,第一通孔,拉动结构包括气缸、拉杆、升降框、活塞,过滤网下方的定位架、滑块、搅碎针、刮除块,连接轴的上端收容于升降框内且与其螺纹连接,定位架贯穿滑块的左右表面且与其滑动接触,搅碎针的上端与滑块固定连接,搅碎针的下端与刮除块固定连接。本发明通过气缸拉动拉杆不断的上下移动,通过螺纹连接的升降框、连接轴使得第三过滤网、定位架、滑块、搅碎针、刮除块随之周期性的旋转,且转向及转速周期性的变化,从而不仅可以对淤泥进行搅碎处理,同时滑块在定位架上来回移动,可以实现扩大搅碎针搅碎淤泥的范围。(The utility model provides a novel ditch desilting device, includes shell structure, pulling structure, stirs garrulous structure, and shell structure includes the casing, first through-hole, and the pulling structure includes cylinder, pull rod, lifting frame, piston, locating rack, slider, the garrulous needle of stirring of filter screen below, strikes off the piece, and the upper end of connecting axle is acceptd in lifting frame and rather than threaded connection, and the locating rack runs through the left and right sides surface of slider and rather than sliding contact, stirs the upper end and the slider fixed connection of garrulous needle, stirs the lower extreme of garrulous needle and strikes off a fixed connection. According to the sludge smashing machine, the pull rod is pulled by the cylinder to continuously move up and down, the third filter screen, the positioning frame, the sliding block, the smashing needle and the scraping block periodically rotate along with the lifting frame and the connecting shaft which are in threaded connection, and the rotation direction and the rotation speed periodically change, so that not only can sludge be smashed, but also the sliding block can move back and forth on the positioning frame, and the sludge smashing range of the smashing needle can be expanded.)

1. The utility model provides a novel ditch desilting device, include shell structure, set up in last pulling structure of shell structure, set up in the stirring structure of shell structure below, shell structure includes the casing, be equipped with the first through-hole that is located on its periphery on the casing, the pulling structure include the cylinder, set up in pull rod on the cylinder, set up in the lift frame of pull rod lower extreme, set up in the piston of lift frame upper end, its characterized in that: stir garrulous structure include the connecting axle, set up in the third filter screen of connecting axle lower extreme, set up in the locating rack of third filter screen below, set up in slider on the locating rack, set up in the stirring needle of slider below, set up in stir the piece of striking off of stirring needle lower extreme, the upper end of connecting axle accept in the lift frame and rather than threaded connection, the third filter screen top lean on the lower surface of casing and rather than sliding contact, the locating rack runs through the left and right sides surface of slider and rather than sliding contact, stir the upper end of stirring needle with slider fixed connection, stir the lower extreme of stirring needle with strike off a fixed connection.

2. The novel canal dredging device of claim 1, wherein: the shell structure is characterized by further comprising a sealing block arranged on the upper wall of the shell, the upper end of the pull rod is connected with the air cylinder, the pull rod penetrates through the upper surface and the lower surface of the sealing block and is in sliding contact with the sealing block, the lower end of the pull rod is fixedly connected with the upper end of the lifting frame, and the lifting frame penetrates through the upper surface and the lower surface of the piston and is fixedly connected with the lifting frame.

3. The novel canal dredging device of claim 2, wherein: the pulling structure further comprises a first pipeline arranged below the piston, a collecting frame arranged at the lower end of the lifting frame, a first filter screen arranged on the lower wall of the collecting frame, and a second filter screen arranged on the collecting frame.

4. A novel canal dredging device according to claim 3, characterized in that: the piston is provided with a third through hole penetrating through the upper surface and the lower surface of the piston, the upper end of the first pipeline is aligned to the third through hole and is fixedly connected with the lower surface of the piston, and the lower surface of the collecting frame is provided with a fourth through hole.

5. The novel canal dredging device of claim 4, wherein: the first filter screen is contained in the fourth through hole and fixedly connected with the collecting frame, the lifting frame penetrates through the upper surface and the lower surface of the first filter screen and is in sliding contact with the upper surface and the lower surface, the second filter screen is contained in the shell and is fixedly connected with the inner circumferential surface of the shell, and the collecting frame penetrates through the upper surface and the lower surface of the second filter screen and is fixedly connected with the upper surface and the lower surface of the second filter screen.

6. The novel canal dredging device of claim 5, wherein: the crushing structure further comprises a plurality of supporting blocks arranged above the third filter screen, bearings arranged on the supporting blocks, and first springs arranged on the sliding blocks, the lower ends of the supporting blocks are fixedly connected with the upper surface of the third filter screen, and the supporting blocks are fixedly connected with the inner ring of the bearings.

7. The novel canal dredging device of claim 6, wherein: the bearing is contained in the shell, the outer ring of the bearing is fixedly connected with the inner circumferential surface of the shell, one end of the first spring is fixedly connected with the sliding block, and the other end of the first spring is fixedly connected with the positioning frame.

8. The novel canal dredging device of claim 7, wherein: the novel canal dredging device further comprises a suction structure arranged on the shell structure, wherein the suction structure comprises a second pipeline, a sludge pump arranged on the second pipeline, and a third pipeline arranged in the shell.

9. The novel canal dredging device of claim 8, wherein: one end of the second pipeline is aligned with the first through hole and is connected with the outer circumferential pipeline of the shell, the upper end of the third pipeline is aligned with the first through hole and is connected with the inner circumferential pipeline of the shell, and the lower end of the third pipeline is aligned with the third through hole and is fixedly connected with the piston.

10. The novel canal dredging device of claim 9, wherein: the novel ditch desilting device is still including set up in the centralized arrangement on the casing, the centralized arrangement include the fourth filter screen, set up in concentrated frame on the fourth filter screen, the casing runs through the upper and lower surface of fourth filter screen and rather than sliding contact, the fourth filter screen accept in the concentrated frame and rather than internal surface fixed connection, the third filter screen accept in the concentrated frame and rather than inner circular face sliding contact.

Technical Field

The invention relates to the technical field of machinery, in particular to a novel water channel dredging device.

Background

After the daily ditch is used for a long time, a large amount of silt can be deposited at the bottom of the ditch, and if the silt is not cleaned out in time, the normal use of the ditch can be influenced, and the environment can be polluted. However, the existing dredging mode for the water channel is mainly carried out manually, the labor intensity of the manual dredging mode is high, the operation is complicated, the dredging is not sanitary enough, the dredging efficiency is low, and the requirement for cleaning a large amount of sludge cannot be met.

Therefore, there is a need to provide a new technical solution to overcome the above-mentioned drawbacks.

Disclosure of Invention

The invention aims to provide a novel water channel dredging device which can effectively solve the technical problems.

In order to achieve the purpose of the invention, the following technical scheme is adopted:

a novel ditch dredging device comprises a shell structure, a pulling structure arranged on the shell structure, and a stirring structure arranged below the shell structure, wherein the shell structure comprises a shell, a first through hole positioned on the outer circumferential surface of the shell is arranged on the shell, the pulling structure comprises a cylinder, a pull rod arranged on the cylinder, a lifting frame arranged at the lower end of the pull rod, and a piston arranged at the upper end of the lifting frame, the stirring structure comprises a connecting shaft, a third filter screen arranged at the lower end of the connecting shaft, a positioning frame arranged below the third filter screen, a slide block arranged on the positioning frame, a stirring needle arranged below the slide block, and a scraping block arranged at the lower end of the stirring needle, the upper end of the connecting shaft is contained in the lifting frame and is in threaded connection with the lifting frame, the third filter screen is abutted against the lower surface of the shell and is in sliding contact with the lower surface of, the locating rack runs through the left and right surfaces of the sliding block and is in sliding contact with the sliding block, the upper end of the crushing needle is fixedly connected with the sliding block, and the lower end of the crushing needle is fixedly connected with the scraping block.

Preferably, the shell structure further comprises a sealing block arranged on the upper wall of the shell, the upper end of the pull rod is connected with the cylinder, the pull rod penetrates through the upper surface and the lower surface of the sealing block and is in sliding contact with the sealing block, the lower end of the pull rod is fixedly connected with the upper end of the lifting frame, and the lifting frame penetrates through the upper surface and the lower surface of the piston and is fixedly connected with the lifting frame.

Preferably, the pulling structure further comprises a first pipeline arranged below the piston, a collecting frame arranged at the lower end of the lifting frame, a first filter screen arranged at the lower wall of the collecting frame, and a second filter screen arranged on the collecting frame.

Preferably, the piston is provided with a third through hole penetrating through the upper surface and the lower surface of the piston, the upper end of the first pipeline is aligned to the third through hole and is fixedly connected with the lower surface of the piston, and the lower surface of the collecting frame is provided with a fourth through hole.

Preferably, the first filter screen is accommodated in the fourth through hole and fixedly connected with the collecting frame, the lifting frame penetrates through the upper surface and the lower surface of the first filter screen and is in sliding contact with the upper surface and the lower surface, the second filter screen is accommodated in the shell and is fixedly connected with the inner circumferential surface of the shell, and the collecting frame penetrates through the upper surface and the lower surface of the second filter screen and is fixedly connected with the upper surface and the lower surface of the second filter screen.

Preferably, the crushing structure further comprises a plurality of supporting blocks arranged above the third filter screen, bearings arranged on the supporting blocks, and first springs arranged on the sliding blocks, the lower ends of the supporting blocks are fixedly connected with the upper surface of the third filter screen, and the supporting blocks are fixedly connected with the inner ring of the bearings.

Preferably, the bearing is accommodated in the housing, an outer ring of the bearing is fixedly connected with an inner circumferential surface of the housing, one end of the first spring is fixedly connected with the slider, and the other end of the first spring is fixedly connected with the positioning frame.

Preferably, the novel canal dredging device further comprises a suction structure arranged on the shell structure, and the suction structure comprises a second pipeline, a sludge pump arranged on the second pipeline and a third pipeline arranged in the shell.

Preferably, one end of the second pipe is aligned with the first through hole and connected with the outer circumferential pipe of the housing, an upper end of the third pipe is aligned with the first through hole and connected with the inner circumferential pipe of the housing, and a lower end of the third pipe is aligned with the third through hole and fixedly connected with the piston

Preferably, novel ditch desilting device still including set up in the enrichment facility on the casing, the enrichment facility include the fourth filter screen, set up in the frame of concentrating on the fourth filter screen, the casing runs through the upper and lower surface of fourth filter screen and rather than sliding contact, the fourth filter screen accept in the frame of concentrating and rather than internal surface fixed connection, the third filter screen accept in the frame of concentrating and rather than inner peripheral face sliding contact.

Compared with the prior art, the invention has the following beneficial effects: the novel ditch dredging device provided by the invention pulls the pull rod to continuously move up and down through the cylinder, and the third filter screen, the positioning frame, the sliding block, the crushing needle and the scraping block periodically rotate along with the lifting frame and the connecting shaft which are connected through the threads, and the rotation direction and the rotation speed periodically change, so that not only can the sludge be crushed, but also the sliding block can move back and forth on the positioning frame, the sludge crushing range of the crushing needle can be expanded, the operation is simple, the use is convenient, and the manufacturing cost can be obviously reduced; the lifting frame can drive the stirring structure to rotate up and down to stir the sludge, and meanwhile, the piston can be driven to move up and down periodically, so that the sludge can be pumped into the shell periodically, partial sludge is concentrated in the collecting frame, the lower end of the first pipeline which moves downwards is conveniently inserted into the collecting frame, the sludge in the collecting frame is pumped away through the sludge pump, the first pipeline, the third pipeline and the second pipeline, a small amount of sludge is sequentially pumped, the pipeline blockage caused by more sludge can be prevented, the sludge can be continuously and efficiently discharged after comprehensive stirring treatment, and the efficiency of cleaning the sludge is improved; meanwhile, the concentration device can concentrate the sludge into the concentration frame, and the fourth filter screen can also concentrate the sludge into the concentration frame and cannot move to the upper part of the fourth filter screen, so that the sludge in the concentration frame can be completely stirred by the stirring structure in the concentration frame.

Drawings

FIG. 1 is a schematic structural diagram of the novel canal dredging device of the invention;

FIG. 2 is a partial enlarged view of the portion A of the novel canal dredging device shown in FIG. 1;

FIG. 3 is a cross-sectional view taken along B-B' of the novel canal dredging device of FIG. 1;

FIG. 4 is a cross-sectional view taken along the line C-C' of the novel canal dredging device of FIG. 1;

FIG. 5 is a cross-sectional view taken along D-D' of the novel canal dredging device of FIG. 1;

fig. 6 is a cross-sectional view taken along E-E' of the novel canal dredging device of fig. 1.

Detailed Description

The novel ditch dredging device of the invention will be clearly and completely described with reference to the attached drawings.

As shown in fig. 1 to 6, the novel canal dredging device of the present invention comprises a casing structure 1, a pulling structure 2 disposed on the casing structure 1, a crushing structure 3 disposed below the pulling structure 2, a concentrating structure 4 disposed on the casing structure 1, and a pumping structure 5 disposed on the casing structure 1.

As shown in fig. 1 and fig. 3 to 5, the housing structure 1 includes a housing 11, a sealing block 12 disposed on an upper wall of the housing 11, and a bracket 13 disposed on the housing 11. The casing 11 is a hollow cylinder, an opening is formed in the lower end of the casing 11 to enable the longitudinal section of the casing 11 to be in an inverted concave shape, a first through hole 111 located on the outer circumferential surface of the casing 11 and a second through hole 112 located on the upper surface of the casing are formed in the casing 11, and the first through hole 111 and the second through hole 112 penetrate through the inner surface and the outer surface of the casing 11. The sealing block 12 is accommodated in the second through hole 112 and is fixedly connected with the housing 11, and the sealing block 12 is preferably made of rubber material. The bracket 13 is bent, and the lower end of the bracket 13 is fixedly connected with the shell 11.

Casing structure 1's setting can be with in the silt suction after the stirring of stirring structure 3 is garrulous to casing 11, then takes out the outside with silt through the suction structure, conveniently clears up it, need not artifical desilting, easy operation, and convenient to use, safety and sanitation is fit for popularizing and applying.

As shown in fig. 1 to 4, the pulling structure 2 includes a cylinder 21, a pull rod 22 disposed below the cylinder 21, a lifting frame 23 disposed below the pull rod 22, a piston 24 disposed at an upper end of the lifting frame 23, a first pipeline 25 disposed below the piston 24, a collecting frame 26 disposed at a lower end of the lifting frame 23, a first filter 27 disposed on a lower wall of the collecting frame 26, and a second filter 28 disposed outside the collecting frame 26. A switch (not shown) is arranged on the cylinder 21 to control the cylinder to be opened or closed conveniently, and the upper end of the bracket 13 is fixedly connected with the cylinder 21. The upper end of the pull rod 22 is connected with the cylinder 21, the cylinder 21 is used for strengthening the pull rod 22 to move up and down, and the pull rod 22 penetrates through the upper surface and the lower surface of the sealing block 12 and is in sliding contact with the upper surface and the lower surface of the sealing block. The lifting frame 23 is a hollow cylinder, the lower end of the lifting frame 23 is provided with an opening so that the longitudinal section of the lifting frame 23 is inverted concave, the lower end of the pull rod 22 is fixedly connected with the upper surface of the lifting frame 23, and the inner circumferential surface of the pull rod 22 is provided with internal threads. The piston 24 is accommodated in the housing 11 and is in sliding contact with the inner circumferential surface thereof, so that the piston 24 can move up and down in the housing 11, the lifting frame 23 penetrates through the upper and lower surfaces of the piston 24 and is fixedly connected with the piston so as to drive the piston 24 to move up and down along with the lifting frame 23 and the pull rod 22, the piston 24 is provided with a third through hole 241 penetrating through the upper and lower surfaces of the piston 24, and the third through hole 241 is circular. The first pipe 25 is vertical, and the upper end of the first pipe 25 is aligned with the third through hole 241 and is fixedly connected with the lower surface of the piston 24, so that the inside of the first pipe 25 is communicated with the third through hole 241. Collect frame 26 and be hollow cylinder, the upper end of collecting frame 26 is equipped with the opening and makes its longitudinal section be the font of caving in, the lower surface of collecting frame 26 is equipped with fourth through-hole 261, fourth through-hole 261 runs through collect the interior external surface of frame 26. The first filter screen 27 is accommodated in the fourth through hole 261 and is fixedly connected with the collection frame 26, the filter hole of the first filter screen 27 is small, so that sludge cannot pass through the filter hole of the first filter screen 27, and only water can pass through the filter hole of the first filter screen 27, so that the sludge in the collection frame 26 is concentrated inside the first filter screen, and the water in the collection frame 26 is discharged below the collection frame 26 through the filter hole of the first filter screen 27. The second filter 28 is accommodated in the housing 11 and fixedly connected to the inner surface thereof, the collecting frame 26 penetrates the upper and lower surfaces of the second filter 28 and is fixedly connected to the upper and lower surfaces thereof, the filtering holes of the second filter 28 are large, so that sludge and water can pass through, and the aperture size of the filtering holes of the second filter 28 is preferably 1 cm to 5 cm. The lifting frame 23 penetrates through the upper and lower surfaces of the first filter 27 and is in sliding contact with the first filter 27, and the lifting frame 23 can move upwards to the upper part of the first filter 27 and downwards penetrate through the upper and lower surfaces of the first filter 27.

The pulling structure 2 is configured to pull the pull rod 22 up and down by the cylinder 21, and by providing the piston 24 at the upper end of the lifting frame 23, so that when the piston 24 moves upward, the sludge crushed by the crushing structure 3 can be pumped into the housing 11 and enter the housing 11 from the lower end of the housing 11, and then flow upward, and flow through the filter holes of the second filter screen 28 to the upper side of the collection frame 26, the sludge submerges the collection frame 26, so that a part of the sludge is concentrated in the collection frame 26, when the piston 24 moves downward, the sludge in the housing 11 is pushed downward, so that a part of the sludge is concentrated in the collection frame 26, after the sludge flows below the collection frame 26, the water in the collection frame 26 can flow to the lower side through the filter holes of the first filter screen 27, so that the sludge is concentrated in the collection frame 26, until the lower end of the first pipe 25 extends into the collection frame 26, at this time, the sludge in the collecting frame 26 can be pumped away, so that the sludge can be conveniently cleaned and discharged in batches, and the occurrence of blockage can be prevented.

As shown in fig. 1, 2, 4 to 6, the mincing structure 3 includes a connecting shaft 31, a third filter screen 32 disposed at the lower end of the connecting shaft 31, a plurality of connecting blocks 34 disposed above the third filter screen 32, bearings 35 disposed on the connecting blocks 34, positioning frames 36 disposed at the left and right sides below the third filter screen 32, a sliding block 37 disposed on the positioning frames 36, a mincing needle 38 disposed below the sliding block 37, a scraping block 39 disposed at the lower end of the mincing needle 38, and a first spring 33 disposed on the sliding block 37. The connecting shaft 31 is a cylinder, an external thread is arranged on the cylindrical side surface of the connecting shaft 31, the upper end of the connecting shaft 31 is contained in the lifting frame 23, and the connecting shaft 31 is in threaded connection with the lifting frame 23, so that the lifting frame 23 can drive the connecting shaft 31 to rotate in the up-and-down moving process. Third filter screen 32 is the cylinder, the upper surface top of third filter screen 32 leans on the lower surface of second casing 11 and rather than sliding contact, make third filter screen 32 can slide and rotate on the lower surface of second casing 11, the lower extreme of connecting axle 31 with the last fixed surface of third filter screen 32 is connected, the aperture of third filter screen 32 filtration pore is great, and the scope is 1 centimetre to 5 centimetres, and it can supply silt to pass. The connecting blocks 34 are provided with a plurality of supporting blocks 34 which are circumferentially and uniformly distributed above the third filter screen 32, the lower ends of the supporting blocks 34 are fixedly connected with the third filter screen 32, and the supporting blocks 34 are accommodated in the shell 11. The bearing 35 is accommodated in the housing 11, an outer ring of the bearing 35 is fixedly connected to an inner circumferential surface of the housing 11, and the support block 34 is fixedly connected to an inner ring of the bearing 35, so that the third filter 32 can stably rotate at the lower end of the housing 11. Locating rack 36 is equipped with two and is located respectively the relative both sides of third filter screen 32 below, locating rack 36 is the L type, the one end of locating rack 36 with the lower surface fixed connection of third filter screen 32, the other end of third filter screen 32 with third filter screen 32 is parallel. The two sliding blocks 37 are respectively arranged on the positioning frame 36, the positioning frame 36 penetrates through the left surface and the right surface of the sliding block 37 and is in sliding contact with the sliding block 37, so that the sliding block 37 can slide on the positioning frame 36 from side to side, and the mass of the sliding block 37 is large, so that when the third filter screen 32 rotates, the sliding block 37 can slide on the positioning frame 36. The plurality of the mincing needles 38 are arranged, the upper ends of the mincing needles 38 are fixedly connected with the lower surface of the sliding block 37, and the mincing needles 38 are made of high-strength steel materials. The scraping blocks 39 are two, the longitudinal section of each scraping block 39 is in an inverted concave shape, the lower ends of the crushing needles 38 are fixedly connected with the upper surface of the scraping block 39, and the lower surface of the scraping block 39 can be abutted against the bottom surface of the ditch so as to scrape sludge on the bottom surface completely. First spring 33 is equipped with two and sets up respectively on the slider 37 of left and right sides, first spring 33's one end with slider 37 fixed connection, first spring 33's the other end with locating rack 36 fixed connection.

The stirring structure 3 can drive the connecting shaft 31 to rotate through the up-and-down movement of the lifting frame 23, so that the third filter screen 32 rotates to drive the stirring needle 38 and the scraping block 39 to rotate, and thus sludge in the ditch can be stirred; and the rotating speed of the third filter screen 32 is changed continuously, so that the positioning frame 36 is changed continuously, the sliding block 37 moves back and forth on the positioning frame 36 continuously under the action of centrifugal force, the crushing needle 38 and the scraping block 39 are driven to rotate along with the sliding block 37 to crush sludge, and the crushing needle 38 and the scraping block 39 move left and right along with the sliding block 37, so that the sludge scraping range of the crushing needle 38 and the scraping block 39 can be enlarged, the structure is simple, the number of the crushing needles is reduced, and the manufacturing cost is saved.

As shown in fig. 1, 4 and 6, the collecting structure 3 includes a fourth filter 41, a collecting frame 42 disposed on the fourth filter 41, a second spring 43 disposed above the fourth filter 41, and a fixing block 44 disposed above the second spring 43. The fourth filter 41 is a cylinder, the housing 11 penetrates through the upper and lower surfaces of the fourth filter 41 and is in sliding contact with the fourth filter, the fourth filter 41 can move on the housing 11, and the filter holes of the fourth filter 41 have small apertures, so that sludge cannot pass through the filter holes, and water can pass through the filter holes, so that the sludge can be concentrated below the filter holes. The concentration frame 42 is a hollow cylinder, the upper and lower surfaces of the concentration frame are communicated, the circumferential side surface of the fourth filter 41 is fixedly connected with the inner circumferential surface of the concentration frame 42, and the third filter 32 is accommodated in the concentration frame 42 and is in sliding contact with the inner circumferential surface thereof, so that the third filter 32 can stably rotate in the concentration frame 42. The second springs 43 are provided with a plurality of springs, and the lower ends of the second springs 43 are fixedly connected with the fourth filter screen 41. The fixed block 44 is equipped with a plurality of and is in the outer periphery of casing 11 is along circumference evenly distributed, the one end of fixed block 44 with the outer periphery fixed connection of casing 11, the upper end of second spring 43 with fixed block 44 fixed connection, second spring 43 is in compression state to promote downwards fourth filter screen 41.

The arrangement of the concentration structure 4 can enable the concentration frame 42 to be contained in the water channel, cover silt in the concentration frame, and match with the fourth filter screen 41, the fourth filter screen 41 can supply water to pass through, and silt can not pass through, so that silt can be concentrated below the concentration frame, the separation of silt and most of water can be realized, and the silt is conveniently concentrated and treated.

As shown in fig. 1, the suction structure 5 includes a second pipe 51, a sludge pump 52 provided on the second pipe 51, and a third pipe 53 provided in the housing 11. One end of the second duct 51 is aligned with the first through hole 111 and is connected to the outer circumferential surface duct of the housing 11 such that the interior of the second duct 51 communicates with the first through hole 111. The sludge pump 52 is disposed on the second pipe 51, and can pump sludge into the second pipe 51 and discharge the sludge, and a switch (not shown) is disposed on the sludge pump 52 to facilitate control of the switch. One end of the third pipe 53 is aligned with the first through hole 111 and is connected to the inner circumferential surface of the housing 11, and the other end of the third pipe 53 is aligned with the third through hole 241 and is fixedly connected to the upper surface of the piston 24, so that the third through hole 241 communicates with the inside of the third pipe 53.

The suction structure 5 is arranged to move the piston 24 downwards, and after the lower end of the first pipe 25 is accommodated in the collection frame 26, the sludge in the collection frame 26 can be pumped into the first pipe 25, then pumped into the third pipe 53, and finally pumped into the second pipe 51 and then discharged, so that the sludge in the collection frame 26 can be pumped away timely, the sludge can be discharged conveniently, the operation is simple, the use is convenient, and the blockage of the first pipe 25, the third pipe 53 and the second pipe 51 caused by more sludge is prevented.

As shown in fig. 1 to 6, when the novel canal dredging device is used, the novel canal dredging device is firstly placed into the canal from the upper side, the concentration frame 42 and the crushing structure 3 are moved into the canal, and since the fourth filter screen 41 can be supplied with water and can not be supplied with silt, the silt is concentrated below the fourth filter screen 41 and is positioned in the concentration frame 42 until the scraping block 39 is abutted against the bottom surface in the canal, the second spring 43 pushes the fourth filter screen 41 downwards, so that the silt is totally concentrated in the concentration frame 42, and most of the water is extruded to the upper side of the fourth filter screen 41. Then the cylinder 21 drives the pull rod 22 to move up and down periodically, when the pull rod 22 moves up, the lifting frame 23 and the piston 24 move up, the lifting frame 23 moves up to drive the connecting shaft 31, the third filter screen 32, the positioning frame 36, the sliding block 37, the crushing needle 38 and the scraping block 39 to rotate along with the lifting frame, the rotating crushing needle 38 and the scraping block 39 can crush the sludge, meanwhile, the scraping block 39 can scrape the sludge on the bottom surface inside the water channel, so that the sludge on the bottom surface can be conveniently scraped, in the process of moving up and down the lifting frame 23, the rotating speed of the connecting shaft 31 is accelerated and then decelerated, when the lifting frame 23 moves to the top, the connecting shaft 31 stops rotating, therefore, the rotating speeds of the connecting shaft 32, the positioning frame 36, the sliding block 37, the crushing needle 38 and the scraping block 39 are changed continuously, and the range of crushing and scraping the sludge can be expanded, the sludge crushing and scraping effect is good, fewer crushing needles 38 and scraping blocks 39 can be arranged, the cost is saved, the pull rod 22 moves upwards to drive the piston 24 to move upwards, so that sludge at the lower end of the shell 11 is sucked into the shell 11 and then enters the upper part of the collecting frame 26 through the filtering holes of the second filtering net 28, and the sludge is concentrated in the collecting frame 26; when the pull rod 22 moves downwards, the lifting frame 23 and the piston 24 move downwards, the connecting shaft 31, the third filter screen 32, the positioning frame 36, the sliding block 37, the crushing needle 38 and the scraping block 39 rotate reversely, so that the sliding block 37, the crushing needle 38 and the scraping block 39 rotate along with the connecting shaft, the sliding block 37 moves back and forth on the positioning frame 36 so as to expand the crushing range of the sliding block, the sludge is crushed effectively, meanwhile, the sludge in the shell 11 is extruded to the lower part, then the first pipeline 25 moves downwards, the lower end of the first pipeline 25 moves to the inner part of the collecting frame 26 and extends into the sludge in the collecting frame 26, the sludge is pumped into the first pipeline 25 and then is discharged through the third pipeline 53 and the second pipeline 51, and the sludge is continuously, uniformly and efficiently crushed and then is periodically pumped into the collecting frame 26 due to the periodic up and down movement of the pull rod 22, then the sludge is collected in the collection frame 26 and the water in the collection frame 26 can be discharged, and then the sludge is discharged through the first pipe 25, the third pipe 53 and the second pipe 51, which is simple in operation and convenient in use. So far, the use process of the novel water channel dredging device is described.

The above description is only for the specific embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention, and the changes or substitutions should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the appended claims.