阅读说明：本技术 一种取水口清淤设备 (Dredging equipment for water intake ) 是由 柴海涛 于 2021-08-21 设计创作，主要内容包括：本发明公开了一种取水口清淤设备,属于水利工程设备技术领域,包括浮板和气囊,在浮板的中心处开设有矩形孔,所述浮板的上表面围绕矩形孔对称设有立柱,且立柱的内侧之间设有一组导轨,所述导轨上滑动连接有调节机构,同时在导轨的内部下端设有用于对调节机构缓冲用的弹簧,所述调节机构上安装有电机和水泵。通过设置的浮板和气囊可以使得清淤设备随水位波动而自动升降,从而能够能保证在取水口满水时清淤设备不会抵触水利工程管道,进而不影响水利工程管道抽水,通过刮板可以刮除附着在取水口内壁上的杂质以及青苔等水生动植物,从而保证清淤后的取水口内部的清洁性,防止取水口在底部清淤之后,内壁上的杂质重新掉落到底部造成新的污染。(The invention discloses a dredging device for a water intake, which belongs to the technical field of hydraulic engineering equipment and comprises a floating plate and an air bag, wherein a rectangular hole is formed in the center of the floating plate, stand columns are symmetrically arranged on the upper surface of the floating plate around the rectangular hole, a group of guide rails are arranged between the inner sides of the stand columns, an adjusting mechanism is connected onto the guide rails in a sliding mode, meanwhile, springs for buffering the adjusting mechanism are arranged at the lower end of the inner portion of each guide rail, and a motor and a water pump are installed on the adjusting mechanism. Can make the desilting equipment fluctuate and the automatic rising along with the water level through the kickboard that sets up and gasbag to can guarantee that the desilting equipment can not conflict hydraulic engineering pipeline when the intake is full of water, and then not influence hydraulic engineering pipeline and draw water, can strike off aquatic animals and plants such as impurity and moss attached to the intake inner wall through the scraper blade, thereby guarantee the inside cleanliness factor of intake after the desilting, prevent that the intake from after the bottom desilting, impurity on the inner wall from dropping the bottom again and causing new pollution.)

1. The utility model provides a desilting equipment at intake, includes kickboard (12) and gasbag (10), has seted up the rectangular hole, its characterized in that in the center department of kickboard (12): the upper surface of kickboard (12) is equipped with stand (2) around the rectangular hole symmetry, and is equipped with a set of guide rail (1) between the inboard of stand (2), sliding connection has adjustment mechanism (3) on guide rail (1), is equipped with simultaneously at the inside lower extreme of guide rail (1) and is used for first spring (4) of usefulness to adjustment mechanism (3) buffering, install motor (14) and water pump (8) on adjustment mechanism (3), through-hole (11) have been seted up to the side symmetry of kickboard (12), and have scraper blade (5) through-hole (11) grafting, and the upper and lower both ends of scraper blade (5) all are equipped with scraper (31).

2. A water intake dredging apparatus as claimed in claim 1, wherein: water pump (8) include casing (25) and drain pipe (24) at casing (25) one side intercommunication, install turbine (26) in casing (25), the tip of drain pipe (24) is equipped with the control valve, and drain pipe (24) are connected with outlet pipe (6) and blow off pipe (9) through the control valve.

3. A water intake dredging apparatus as claimed in claim 2, wherein: the lower surface fixed mounting of motor (14) has connecting cylinder (7), and motor (14) pass through connecting cylinder (7) and water pump (8) fixed connection, the center department intercommunication of connecting cylinder (7) and casing (25), and the drive end of motor (14) passes connecting cylinder (7) and turbine (26) is connected.

4. A water intake dredging apparatus as claimed in claim 1, wherein: adjustment mechanism (3) are including mount (15), and the upper surface of mount (15) is equipped with fixed ear (19) along horizontal center department, be equipped with pivot (18) between fixed ear (19), and be connected with adjustable shelf (16) between pivot (18), the inner wall welding of adjustable shelf (16) has connection piece (17), and motor (14) are fixed on connection piece (17) simultaneously.

5. A water intake dredging apparatus as claimed in claim 4, wherein: the utility model discloses a quick-witted, including swing span, activity frame (16), upper surface one end pin joint of activity frame (16) has slide bar (20), and the rear end of slide bar (20) slides simultaneously has crank arm connecting rod (22), is equipped with first round pin seat (21) in the upper surface one end of mount (15) simultaneously, crank arm connecting rod (22) pin joint is on first round pin seat (21), the lower surface of mount (15) and the homonymy that is located first round pin seat (21) are equipped with second cylinder (23), and the end at crank arm connecting rod (22) is connected to the output of second cylinder (23).

6. A water intake dredging apparatus as claimed in claim 1, wherein: the inside of kickboard (12) is equipped with link (29), and the side pin joint of link (29) has a pair of cantilever (28), be connected with horizontal pole (30) between the center department of cantilever (28), and the center department of horizontal pole (30) has cup jointed second key seat (27), the inside at kickboard (12) is fixed in second key seat (27), and the front end and scraper blade (5) of cantilever (28) are connected simultaneously, the outside of stand (2) is equipped with first cylinder (13), and the hole of stepping down that the output that supplies first cylinder (13) passed is seted up to the upper surface of kickboard (12), the output of first cylinder (13) passes the hole of stepping down and is connected with the upper surface pin joint of link (29).

7. A water intake dredging apparatus as claimed in claim 6, wherein: cantilever (28) include bush (32) with link (29) side pin joint, and the outer end activity of bush (32) has cup jointed interior pole (34), the one end that interior pole (34) are located bush (32) inside has cup jointed second spring (33), and the interior pole (34) other end and scraper blade (5) are connected.

Technical Field

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

Background

The desilting of current water intake is generally carried out the desilting through manual work or desilting equipment, manual work desilting is dangerous, because the great and more smooth personnel that cause of the waterside of setting of water intake degree of depth drop very easily, and present all desilting equipment desilting modes are usually after the water is discharged totally, dig the silt of water intake bottom and get or wash, there is not too much attention to the water intake inner wall, this just leads to the water intake inner wall on adnexed impurity and aquatic mollusk have no way to be cleaned, thereby influence quality of water under certain circumstances.

Disclosure of Invention

Aiming at the problem that the existing water intake dredging equipment only cleans the bottom of a pool and is complicated to install every time of dredging, the invention provides the water intake dredging equipment.

In order to solve the above problems, the present invention adopts the following technical solutions.

The utility model provides a desilting equipment at intake, includes kickboard and gasbag, has seted up the rectangular hole in the center department of kickboard, the upper surface of kickboard is equipped with the stand around the rectangular hole symmetry, and is equipped with a set of guide rail between the inboard of stand, sliding connection has adjustment mechanism on the guide rail, is equipped with the first spring that is used for buffering the adjustment mechanism usefulness simultaneously at the inside lower extreme of guide rail, last motor and the water pump of installing of adjustment mechanism, the through-hole has been seted up to the side symmetry of kickboard, and has pegged graft through the through-hole and have the scraper blade, and the upper and lower both ends of scraper blade all are equipped with the scraper.

Preferably, the water pump includes the casing and at the drain pipe of casing one side intercommunication, install the turbine in the casing, the tip of drain pipe is equipped with the control valve, and the drain pipe is connected with outlet pipe and blow off pipe through the control valve.

Preferably, a connecting cylinder is fixedly mounted on the lower surface of the motor, the motor is fixedly connected with the water pump through the connecting cylinder, the connecting cylinder is communicated with the center of the machine shell, and the driving end of the motor penetrates through the connecting cylinder to be connected with the turbine.

Preferably, adjustment mechanism includes the mount, and the upper surface of mount is equipped with fixed ear along horizontal center department, be equipped with the pivot between the fixed ear, and be connected with the adjustable shelf between the pivot, the inner wall welding of adjustable shelf has the connection piece, and the motor is fixed on the connection piece simultaneously.

Preferably, a slide bar is connected to one end of the upper surface of the movable frame through a pin, a crank arm connecting rod (22) slides at the rear end of the slide bar, a first pin boss is arranged at one end of the upper surface of the fixed frame, the crank arm connecting rod is connected to the first pin boss through a pin, a second cylinder is arranged on the lower surface of the fixed frame and on the same side of the first pin boss, and the output end of the second cylinder is connected to the tail end of the crank arm connecting rod.

Preferably, the lower surface of the fixing frame is provided with a second cylinder on the same side of the first pin boss, and the output end of the second cylinder is connected to the tail end of the crank arm connecting rod.

Preferably, the inside of kickboard is equipped with the link, and the side pin joint of link has a pair of cantilever, be connected with the horizontal pole between the center department of cantilever, and the center department of horizontal pole has cup jointed the second key seat, the inside at the kickboard is fixed to the second key seat, and the front end and the scraper blade of cantilever are connected simultaneously, the outside of stand is equipped with first cylinder, and the upper surface of kickboard sets up the hole of stepping down that the output that supplies first cylinder passed, the output of first cylinder passes the hole of stepping down and is connected with the upper surface pin of link.

Preferably, the cantilever comprises a bushing in pin joint with the side face of the connecting frame, the outer end of the bushing is movably sleeved with an inner rod, one end of the inner rod, located inside the bushing, is sleeved with a second spring, and the other end of the inner rod is connected with the scraper.

Advantageous effects

Compared with the prior art, the invention has the beneficial effects that:

(1) according to the invention, the dredging equipment can automatically lift along with the fluctuation of the water level through the arranged floating plate and the air bag, so that the dredging equipment can be ensured not to collide with a hydraulic engineering pipeline when the water intake is full of water, the water pumping of the hydraulic engineering pipeline is not influenced, when the water level of the water intake is reduced, the dredging equipment can well extract the sludge in the water intake, and the sludge cannot contact with the lower-layer sedimentation part of the water intake due to the fact that the dredging equipment is too short.

(2) In the invention, water and sludge in the water intake can be extracted through the arranged guide rail, the adjusting mechanism, the motor and the water pump, wherein the guide rail has the following functions: when the water level descends to the water pump and can contact the intake bottom, kickboard and gasbag still can continue to descend through the guide rail to make motor and water pump keep balance, can not take place the slope, thereby make whole desilting device block because the slope of water pump when preventing to inject water again, and adjustment mechanism can control the angle of motor and water pump, can extract a plurality of points at the intake through the angle that changes motor and water pump, make the desilting effect better.

(3) According to the invention, the control valve, the water outlet pipe and the drain pipe are arranged on the water pump to control the discharge of the water intake during dredging, the pumped water is controlled to pass through the water outlet pipe or the drain pipe through the control valve, further, when sediment in the water intake is positioned below the water pump, the water pump pumps the clear water, so that the dredging effect cannot be achieved, the pumped water is discharged into the water intake again through the water outlet pipe to be washed along with a sediment layer at the bottom, the sediment turns upwards, the water outlet pipe is closed and the drain pipe is opened through the control valve at the moment, the turbid liquid is pumped out to achieve the dredging effect, and the sediment layer is washed through the water outlet pipe to dilute the sludge at the bottom of the water intake, so that the water pump is favorable for pumping the sludge, and the water pump blockage caused by the too thick sludge layer is prevented.

(4) In the invention, impurities and aquatic animals and plants such as moss attached on the inner wall of the water intake can be scraped off by the scraper, so that the cleanness of the inside of the water intake after dredging is ensured, the impurities on the inner wall of the water intake are prevented from falling to the bottom again to cause new pollution after the bottom of the water intake is dredged, the scraper is subjected to angle adjustment by considering that the ascending and descending forces of the whole device in the water intake are different, so that scrapers at the upper end and the lower end of the scraper are contacted with the inner wall when the scraper scrapes the impurities on the inner wall of the water intake, and the phenomenon that the device is not ascended or descended due to the fact that the friction force is too large because the outer surface of the scraper is completely contacted with the inner wall of the water intake is avoided, wherein the up-down angle adjustment of the scraper is realized, the connecting frame movably connected with the scraper is driven to ascend and descend by the cylinder, and the connecting frame is connected with the scraper by the cantilever, meanwhile, a lever structure formed by a pin boss is arranged on the suspension, so that when the connecting frame is lifted, the scraper is driven to adjust the angle through the lever principle, and the scraper is in contact with the inner wall to scrape.

Drawings

FIG. 1 is a schematic view of the overall structure of the apparatus of the present invention;

FIG. 2 is a schematic view of an adjusting mechanism according to the present invention;

FIG. 3 is a schematic view of the structure of the water pumping device of the present invention;

FIG. 4 is a schematic view of the internal structure of the water pump according to the present invention;

FIG. 5 is a schematic view of the structure for adjusting the angle of the scraping plate according to the present invention;

FIG. 6 is a partially enlarged view of the scraper of the present invention;

FIG. 7 is a schematic view of the internal structure of the cantilever according to the present invention.

The corresponding relationship between the reference numbers of the figures and the names of the components in the figures is as follows: 1. a guide rail; 2. a column; 3. an adjustment mechanism; 4. a first spring; 5. a squeegee; 6. a water outlet pipe; 7. a connecting cylinder; 8. a water pump; 9. a blow-off pipe; 10. an air bag; 11. a through hole; 12. A floating plate; 13. a first cylinder; 14. a motor; 15. a fixed mount; 16. a movable frame; 17. connecting sheets; 18. a rotating shaft; 19. fixing the ear; 20. a slide bar; 21. a first pin boss; 22. a crank arm connecting rod; 23. a second cylinder; 24. a liquid outlet pipe; 25. a housing; 26. a turbine; 27. a second pin boss; 28. a cantilever; 29. a connecting frame; 30. a cross bar; 31. a scraper; 32. a bushing; 33. a second spring; 34. an inner rod.

Detailed Description

The invention is further described below in connection with specific embodiments of the invention.

The dredging equipment for the water intake provided in figure 1 comprises a floating plate 12 and an air bag 10, wherein a motor 14 is installed on the floating plate 12, a connecting cylinder 7 is fixedly installed on the lower surface of the motor 14, the tail end of the connecting cylinder 7 is connected with a water pump 8, through holes 11 are symmetrically formed in the side surface of the floating plate 12, a scraper 5 is inserted into the through holes 11, the dredging equipment can float in a water well or a water pool of the water intake through the floating plate 12 and the air bag 10, the equipment floats through water when placed in the water intake, the water in the water intake is pumped out by driving the water pump 8 to move through the motor 14 in the process, the equipment descends when the water level in the water intake descends, the scraper 5 is scraped off moss or water scale on the inner wall of the water intake by descending of the equipment, meanwhile, water can be refilled through a gate of the water intake, the equipment ascends to clean the inner wall of the water intake again through rising of the water level, therefore, the cleaning in the water intake is further ensured, meanwhile, the height of the equipment on the water surface can be adjusted by simply depending on the water level reduction to ensure that the scraping and cleaning effect of the scraping plate 5 contacting the inner wall can not meet the requirement, the equipment can also be lowered by a certain height along with the air bag 10 through repeatedly inflating and deflating the air bag 10, the air bag 10 is contracted due to lack of sufficient air support in the deflation process of the air bag 10, the scraper plate 5 descends along with the equipment in the process, the inner wall of the water intake can also be scraped, otherwise, the air bag 10 is inflated, the air bag 10 is supported by the air, the height of the air bag 10 is also increased along with the equipment, the equipment is also increased along with the equipment in the air bag internal gas saturation state, the scraper plate 5 is further upwards scraped on the water intake, the scraper plate 5 can repeatedly scrape and clean the inner wall of the water intake, in the embodiment, the floating plate 12 is of a rectangular structure formed by a material with the density smaller than that of water, it should be noted that the floating plate 12 includes, but is not limited to, a rectangular structure, and the floating plate 12 in this embodiment is a rectangular structure only as a means for convenience of description, and the specific shape thereof is determined according to the shape of the intake.

The center of the floating plate 12 is provided with a rectangular hole, the upper surface of the floating plate 12 is symmetrically provided with upright posts 2 around the rectangular hole, a group of guide rails 1 are arranged between the inner sides of the upright posts 2, the guide rails 1 are connected with an adjusting mechanism 3 in a sliding way, the lower end in the guide rails 1 is provided with a first spring 4 for buffering the adjusting mechanism 3, meanwhile, a motor 14 is arranged on the adjusting mechanism 3, the rectangular hole is used for a connecting cylinder 7 to pass through, when the water level drops to a certain degree, the lower surface of the water pump 8 contacts the bottom of the water intake, the floating plate 12 and the air bag 10 slide downwards on the adjusting mechanism 3 through the guide rails 1, so that the scraping plate 5 can continuously clean the inner wall of the water intake, when the water intake is re-filled, the floating plate 12 and the air bag 10 rise due to buoyancy, and the water pump 8 cannot rise along with the guide rails due to the sliding connection of the adjusting mechanism 3, so that the water pump 8 can still contact the bottom of the water intake to carry out desilting, the water pump 8 is always contacted with the bottom of the water intake for dredging by controlling the water intake of the gate of the water intake and the water outlet of the water pump 8.

In fig. 1, 3 and 4, the water pump 8 includes a casing 25, the connecting cylinder 7 is communicated with the center of the casing 25, a turbine 26 is installed in the casing 25, the driving end of the motor 14 passes through the connecting cylinder 7 and is connected with the turbine 26, a liquid outlet pipe 24 is communicated with one side of the casing 25, a control valve is arranged at the end of the liquid outlet pipe 24, the liquid outlet pipe 24 is connected with a water outlet pipe 6 and a sewage discharge pipe 9 through the control valve, when the water pumping device is started, the turbine 26 in the casing 25 is driven to rotate by the driving end of the motor 14, when the turbine 26 rotates, water in the water inlet is sucked through the water inlet of the casing 25 and is delivered into the liquid outlet pipe 24 by inertia, the water outlet pipe 6 and the sewage discharge pipe 9 are connected to the liquid outlet pipe 24 through the control valve, when the water level is too deep and the water in the water inlet is relatively calm, if the water in the water inlet is directly pumped away, sediments are accumulated at the bottom of the pool to cause incomplete later stage of pumping, still need inject water again and just can extract after diluting the precipitate, consequently open outlet pipe 6 through the control valve this moment, outlet pipe 6 directly places in the water intaking mouth, thereby carry out the inner loop with the intraoral water of water intaking and erode the bottom of the pool, make the precipitate turn over, utilize the control valve to close outlet pipe 6 afterwards, thereby open blow off pipe 9 and connect the hose of outside emission to make muddy water taken away, because the device is put in the water intaking mouth for a long time, so set up the trouble that manual control pipeline can be solved to two kinds of pipelines.

In fig. 1 and 2, the adjusting mechanism 3 includes a fixed frame 15, and the upper surface of the fixed frame 15 is provided with fixed lugs 19 along the transverse center, and rotating shafts 18 are arranged between the fixed lugs 19, a movable frame 16 is connected between the rotating shafts 18, and a connecting sheet 17 is welded on the inner wall of the movable frame 16, and the motor 14 is fixed on the connecting sheet 17, and one end of the upper surface of the movable frame 16 is provided with a sliding rod 20 in a sliding manner, a crank arm connecting rod 22 is connected on the sliding rod 20 in a sliding manner, and one end of the upper surface of the fixed frame 15 is provided with a first pin seat 21, and the crank arm connecting rod 22 is pinned on the first pin seat 21, and a second cylinder 23 is arranged on the lower surface of the fixed frame 15 and on the same side as the first pin seat 21, and the output end of the second cylinder 23 slides on the tail end of the crank arm connecting rod 22, and the adjusting mechanism 3 can control the angle of the water pump 8, so that the water pump 8 can suck various angles of the water intake, further improve the sewage discharge capacity, and the specific operation is as follows: the second cylinder 23 drives the crank arm connecting rod 22 to rotate, the crank arm connecting rod 22 is connected to the first pin seat 21 in a pin mode, a lever structure can be formed through driving of the second cylinder 23, when the second cylinder 23 pushes the crank arm connecting rod 22 to move downwards, the upper end of the crank arm connecting rod 22 is enabled to upwarp to drive one end, connected with the movable frame 16 and the crank arm connecting rod 22, of the movable frame 16 to ascend, the driving end of the motor 14 fixed on the movable frame 16 rotates towards the direction of the second cylinder 23 at the moment, the water pump 8 is further driven to rotate at the same angle, otherwise, the second cylinder 23 pulls the crank arm connecting rod 22 to move upwards, and the driving end of the motor 14 on the movable frame 16 rotates towards the direction opposite to the second cylinder 23.

In fig. 1 and 5, a connecting frame 29 is arranged inside a floating plate 12, a pair of cantilevers 28 are pinned to the side surfaces of the connecting frame 29, each cantilever 28 includes a bushing 32 pinned with the connecting frame 29, an inner rod 34 is movably connected in the bushing 32, a second spring 33 is sleeved on one end of the inner rod 34, which is positioned at the bushing 32, a cross rod 30 is connected between the centers of the cantilevers 28, a second pin seat 27 is sleeved at the center of the cross rod 30, the second pin seat 27 is fixed inside the floating plate 12, the front end of the cantilever 28 is connected with a scraper 5, scrapers 31 are arranged at the upper end and the lower end of the scraper 5, a first cylinder 13 is arranged outside a column 2, an abdicating hole for the output end of the first cylinder 13 to pass through is formed in the upper surface of the floating plate 12, the output end of the first cylinder 13 passes through the abdicating hole and is pinned with the upper surface of the connecting frame 29, when the water intake port is filled, the gate of the water intake is closed to precipitate, so that the water is subjected to preliminary clarification action, when the water level in the water intake is reduced due to the transportation of the urban pipe network after the precipitation, the equipment is reduced along with the reduction of the water level, the scraper 5 contacts the inner wall of the water intake so as to drop attachments on the inner wall, and the urban pipe network is blocked, therefore, the angle of the scraper 5 is changed through the mechanism, after the scraper 5 rotates for a certain angle, the scrapers 31 at the upper end and the lower end can contact the inner wall of the water intake so as to scrape the inner wall of the water intake, the scrapers 31 can also solve the problem that the outer surface of the scraper 5 is wholly and smoothly scraped by the scraper 5 to directly scrape the inner wall, the cleaning effect is not complete, the hanging scraper 5 and the inner wall of the water intake are kept parallel and not contacted under the non-cleaning state, thereby guarantee under the water use state, scraper blade 5 can not hang the inner wall attachment and fall and cause the pollution, and its specific accommodation process is: the connecting frame 29 is pushed to descend by the first cylinder 13, the cantilever 28 pinned to the outer side is driven to descend along with the descending process of the connecting frame 29, the cantilever 28 forms a lever structure through the second pin seat 27, when one end of the cantilever 28 descends, one end connected with the scraper 5 upwarps, the scraper 5 is further upwarped, when the scraper 5 upwarps, the lower end scraper 31 of the cantilever is in contact with the inner part of the water taking opening, the inner wall is scraped by injecting water into the water taking opening to lift the equipment, otherwise, the scraper 5 is downwards adjusted, water in the water taking opening is extracted, the upper surface of the scraper 5 scrapes the inner wall of the water taking opening, when the connecting frame 29 is pulled to ascend by the first cylinder 13, the connecting frame 29 drives one end of the cantilever 28 to upwarp, in the process, the cantilever 28 is designed to be telescopic in order to prevent the cantilever 28 from being interfered and incapable of being adjusted, so that the bush 32 upwarps firstly when one end of the cantilever 28 upwarps, the bush 32 slides on interior pole 34, and carry out the pulling of trend upwards here to the one end that interior pole 34 cup jointed mutually, and extrude second spring 33, interior pole 34 front end receives the restraint of second key seat 27 to form the lever, make scraper blade 5 rotate under the phase and adjust, and at scraper blade 5 during operation, if meet the barrier and make equipment can not continue when going up and down, thereby can carry out angle modulation to scraper blade 5 through above-mentioned mechanism equally and avoid hindering, guarantee that equipment can go up and down, simultaneously in order to guarantee that scraper blade 31 can be smooth contact to the intake inner wall, need control scraper blade 5's crookedness when in-service use, consequently, it is less than scraper blade 31 to the distance of horizontal pole 30 to design into cambered surface center department with scraper blade 5 distance of horizontal pole 30, make scraper blade 31 can contact the intake inner wall smoothly when controlling scraper blade 5 turned angle like this.

The working principle is as follows: when the device is placed in a water intake, when the water intake is desilted, the motor 14 is started, the driving end of the motor 14 drives the turbine 26 in the casing 25 to rotate, when the turbine 26 sucks water in the water intake through the water inlet of the casing 25 and sends the water into the liquid outlet pipe 24 by using inertia, when the water level in the water intake is higher, the water is directly pumped out through the sewage discharge pipe 9, when the water level of the water intake is reduced to a half, the sewage discharge pipe 9 is closed through the control valve, the water enters the water outlet pipe 6, the water is discharged into the water intake again through the water outlet pipe 6, so that the bottom of the water intake is washed, the sludge deposited at the bottom of the water intake is upturned by the flushing gas, at the moment, the water outlet pipe 6 is closed through the control valve, the water enters the sewage discharge pipe 9 to be directly discharged, when the water is pumped out, the water level is reduced, and the device is lowered along with the water, the connecting frame 29 is pulled to ascend through the first air cylinder 13, the cantilever 28 pinned to the outer side is lifted along with the ascending of the connecting frame 29, the cantilever 28, in turn, forms a lever structure by means of the second pin boss 27, and when one end of the cantilever 28 is raised, the end connected with the scraper 5 descends, further the scraper 5 rotates downwards for a certain angle, so that the upper end of the scraper 5 contacts the inner wall of the water intake, the attachments on the inner wall are scraped, the water level continues to descend, finally, the lower surface of the water pump 8 contacts the bottom of the water intake, the floating plate 12 and the air bag 10 continue to descend along with the water level, in the process the guide rail 1 mounted on the upper surface upright 2 of the floating plate 12 is moved downwards on the adjusting mechanism 3 for connecting the motor 14, thereby make water pump 8 keep the level, prevent the inclination of pumping device, thereby make whole desilting device block owing to the slope of water pump 8 when preventing to reinject water.

While the invention has been described in further detail in connection with specific embodiments thereof, it will be understood that the invention is not limited thereto, and that various other modifications and substitutions may be made by those skilled in the art without departing from the spirit of the invention, which should be considered to be within the scope of the invention as defined by the appended claims.