A water surface duckweed removal device and use method

Abstract

The invention relates to the technical field of duckweed salvaging, and in particular to a device for removing duckweed on a water surface and a method for using the device. The device comprises a water diversion bowl, a filtering and collecting bin and a pumping and drainage bin, wherein a sinking and floating control component is arranged below the pumping and drainage bin, a side wall of the water diversion bowl is fixedly connected with a backwashing water inlet pipe, and a large floating object obstruction filtering alarm component is installed above the water diversion bowl. The invention utilizes a liftable water diversion bowl to realize a filtering state and a wave-making state, and through an alternating use mode, water waves can push the duckweed to the vicinity of an adjacent water diversion bowl, thereby increasing the filtering range of the duckweed, and at the same time, the lifting and lowering of the wave-making combined with the backwashing water inlet is used to flush the top of the conical filtering surface, and the large floating object obstruction filtering alarm component is used to block the floating lotus leaves and alarm the filtering blockage at the same time, so that the whole device realizes the efficient duckweed cleaning of water areas with surface plants without affecting the growth of the plants.

Description

Technical Field

[0001] The invention relates to the technical field of duckweed salvaging, and in particular to a device for removing duckweed from a water surface and a use method thereof. Background Art

[0002] There are currently two methods for cleaning floating algae and duckweed on the water surface, one is active and the other is fixed. First, the advantages of the active method are explained. The active method often uses floating ropes and floating nets to cooperate with ships to form a large-area coverage collection. Through the movement of the ships, the floating ropes or floating nets between the ships move along the water surface to uniformly collect the algae on the surface. This method is suitable for cleaning large areas of water. However, the defect of this method is that it causes devastating damage to plants that grow on the water surface. For example, duckweed in a lotus pond. A large amount of duckweed not only affects the beauty of the lotus pond, but also affects the lighting effect, and may also cause underwater hypoxia. If this method is used for cleaning, a large number of lotus rhizomes will be damaged and cannot be used;

[0003] A Chinese patent discloses a device for comprehensive treatment of blue algae in nearshore waters and a treatment method thereof, and its publication number is (CN111592178A). The patent specification proposes that the height of the algae collecting bucket is adjusted by the extension and contraction of a hydraulic telescopic cylinder to make it 1 mm below the water surface, and water will gather to the algae collecting bucket to generate a vortex, and the blue algae will flow to the filter plate, and the filter plate will filter the garbage in the water, and the blue algae will flow down through the filter plate. First, this method is applied to the collection of duckweed in a lotus pond, and there are the following problems. First, the lotus pond is affected by rhizomes and lotus leaves, so that the ripples formed by the wind on the water surface are less or even absent. At this time, it mainly relies on the vortex effect generated by the algae collecting bucket for attraction, resulting in a smaller vortex affected area, resulting in too low collection efficiency. At the same time, the lotus pond will be affected by floating lotus leaves. At this time, the lotus leaf area is large, and it is easy to directly cover the filter screen, resulting in a large area of ​​the filter screen being blocked. At this time, it is difficult for the water flow to flow smoothly into the bottom, so that the liquid surface of the algae collecting bucket accumulates quickly, causing failure, so it has limitations in application. Summary of the invention

[0004] The technical problem to be solved by the present invention is: in order to overcome the problem that in the prior art, there are few or even no ripples formed on the water surface by wind force, and the algae collecting bucket is mainly relied on for attraction, resulting in a small vortex affected area and low collection efficiency, a water surface duckweed removal device is now provided.

[0005] In order to solve the above technical problems, the present invention adopts the following technical solutions: a water surface duckweed removal device, comprising a plurality of spaced device bodies, each of which comprises a buoyant water diversion bowl, a buoyant filtering and collecting chamber and a pumping chamber, the bottom of the water diversion bowl has a wave-making surface, the water diversion bowl is connected to the filtering and collecting chamber through a connecting pipe, and a sinking and floating control component for controlling the rise and fall of the wave-making surface is arranged below the pumping chamber;

[0006] When the upper end surface of the water diversion bowl drops below the water surface, water flows through the water diversion bowl into the filtration collection chamber, and the equipment body is in the filtration stage. When the water diversion bowl floats up and down and the upper end surface is always above the water surface, the equipment body is in the wave-making stage. At the same time, adjacent equipment bodies are in different stages.

[0007] The upper side wall of the water diversion bowl is fixedly connected with a recoil water inlet pipe, which is communicated with the water diversion bowl. The end of the recoil water inlet pipe away from the water diversion bowl is rotatably connected with a rotating shaft, and both ends of the rotating shaft are respectively fixed with a pipe top float and a floating closing plate, the pipe top float is located outside the recoil water inlet pipe, and the floating closing plate is located inside the water inlet pipe; when the equipment is in the filtering stage, the pipe top float contacts with water, and it rises due to buoyancy, and the floating closing plate descends to block the end of the recoil water inlet pipe; when the equipment is in the wave-making stage, the pipe top float separates from the water and descends, and the floating closing plate rises to open the end of the recoil water inlet pipe, which can be used to introduce a small amount of water flow;

[0008] The interior of the filter collection bin is provided with a conical filter surface and an accumulation filter surface. The conical filter surface is located in the middle of the filter collection bin and protrudes upward. The conical filter surface is used to cooperate with the water flow to reduce the attachment of duckweed, and the accumulation filter surface is used to accumulate and gather duckweed in the wave-making stage.

[0009] A large floating object obstruction filtration alarm component is detachably installed above the water diversion bowl. The large floating object obstruction filtration alarm component is used to block large floating objects and to alarm when the filter collection bin is blocked and the water level in the water diversion bowl rises.

[0010] The above technical solution utilizes a liftable water-drawing bowl to achieve a filtering state and a wave-making state, and through staggered use, the water waves can push the duckweed to the vicinity of an adjacent water-drawing bowl, thereby increasing the filtering range of the duckweed. At the same time, the lifting and lowering of the wave-making combined with the backwash water is used to flush the top of the conical filtering surface, and at the same time, the duckweed is accumulated on the accumulated filtering surface to reduce the contact gap between the duckweeds, thereby increasing the storage capacity while reducing the impact on the filtration. The large floating objects hinder the filtration alarm component to block the floating lotus leaves and at the same time alarm the filtration blockage. The entire device realizes efficient duckweed cleaning in waters with surface plants without affecting the growth of the plants.

[0011] Furthermore, the sinking and buoyancy control component includes a sinking and buoyancy controller and a traction connector. A motor is installed inside the sinking and buoyancy controller. Both ends of the sinking and buoyancy controller are rotatably connected to a turntable. The traction connector is eccentrically arranged on the outer wall of the turntable. The two traction connectors correspond to each other, and each traction connector includes a traction rope, and the end of the traction rope is fixed on the bottom of the water. Start the motor and the turntable rotates. Since the length of the traction rope is fixed, when the traction connector rotates from the highest point to the lowest point, the water bowl gradually rises, and when the traction connector rotates from the lowest point to the highest point, the water bowl gradually drops.

[0012] Furthermore, the traction connector also includes a rotating sleeve, a winding roller and an adjusting nut threadedly connected to the end of the rotating sleeve. The outer wall of the turntable is eccentrically fixedly connected to a fixed column. The winding roller is rotatably connected between the rotating sleeve and the fixed column. The adjusting nut is fixed with a limit pin along its axial direction. The end of the winding roller is provided with a plug-in groove along its axial direction. The limit pin is slidably connected inside the plug-in groove. The side wall of the rotating sleeve is provided with a threading hole for the traction rope to pass through. Because the terrain bottom surface of the lotus pond is uneven, when installing the equipment, it is first necessary to adjust the length of the traction rope according to the terrain, and rotate the adjusting nut. The adjusting nut drives the winding roller to rotate forward or reverse to retract and release the traction rope.

[0013] Furthermore, the large floating object obstruction filtration alarm component includes a center sleeve, a connecting pin, an alarm and a connecting dividing strip. An alarm float is fixed at the bottom of the connecting pin. The alarm float is located at the center of the water diversion bowl and is used to drive the connecting pin to rise and trigger the alarm when the liquid level rises. There are multiple connecting dividing strips and they are spaced between the outer wall of the center sleeve and the inner wall of the water diversion bowl. When the equipment body is in the filtering state, the upper end surface of the water diversion bowl is located below the water surface and slightly lower than the water surface. Water flows in along the wall of the water diversion bowl, and because the bottom pumping bin is used for drainage, the water inlet and outlet speeds are balanced, so that when the equipment is working normally, there is no water flow in the center of the water diversion bowl, and the inside of the water diversion bowl is similar to a vortex state. When the inside of the filtration collection bin is blocked, the water flow cannot enter the pumping bin for discharge, the water level inside the water diversion bowl rises, and the alarm float drives the connecting pin to rise and triggers the alarm.

[0014] Furthermore, a curved closed door is detachably installed on the side of the filter collection bin, the conical filter surface and the stacking filter surface are integrally formed, and the edge of the stacking filter surface has a flange structure, and the curved closed door is fixedly connected to the stacking filter surface; first, the filter collection bin needs to collect excess water after collecting it, so after the curved closed door is opened, the conical filter surface and the stacking filter surface are completely separated from the filter collection bin along with the curved closed door, and the duckweed can be processed uniformly at this time.

[0015] Furthermore, the inner hole of the recoil water inlet pipe is a square hole, and the floating closing plate is a square plate. When the equipment body is in the wave-making stage, the buoy on the top of the pipe and the floating closing plate are in a horizontal state, the square floating closing plate is in contact with the top wall of the square inner hole of the recoil water inlet pipe, and the recoil water inlet pipe is in an open state. When the equipment body is in the filtering stage, the buoy on the top of the pipe rises due to the buoyancy, and the square floating closing plate descends to seal the square inner hole.

[0016] Furthermore, the radius of the pipe top float is smaller than the height of the square hole of the backwash water inlet pipe, so that when the backwash water inlet pipe is filled with water, the pipe top float will not contact the water surface, thereby avoiding triggering of the floating closure plate.

[0017] Furthermore, each connecting dividing strip is gradually inclined downward from the center sleeve toward the inner wall of the water-guiding bowl, and the lotus leaves blocked by the inclined connecting dividing strips can be shaken off into the water during the subsequent wave-making stage and float to other areas through the water waves.

[0018] Furthermore, a drainage pump is installed inside the drainage bin, and a discharge pipe of the drainage pump extends to the outside of the drainage bin.

[0019] A method for using the above-mentioned water surface duckweed removal device comprises the following steps:

[0020] S1: Adjust the length of the traction rope according to the terrain. First, fix one end of the traction rope on the underwater fixed surface. Rewind the traction rope by adjusting the nut so that when the traction connector rotates to the lowest point, the wave-making surface is above the water surface. When the traction connector rotates to the highest point, the upper end surface of the water bowl is below the water surface.

[0021] S2: Divide a number of equipment bodies distributed in the water area into group a and group b. Group a and group b are staggered and filter alternately. When group a is in the filtering stage, group b is in the wave-making stage. When group a is in the wave-making stage, group b is in the filtering stage.

[0022] Filtration stage: The traction connector is controlled to rotate upwards through the sinking and floating controller. At this time, the water bowl is below the water surface. The surrounding liquid level is higher than the upper end of the water bowl and flows to the bottom of the water bowl. The liquid is discharged through the drainage pump. The filtered liquid filters the duckweed on the conical filtering surface and the accumulation filtering surface. At this time, large floating objects such as floating lotus leaves are blocked by the connecting separator and cannot enter the interior of the water bowl. When there are too many filtered objects and the conical filtering surface fails to filter, the liquid level inside the water bowl rises, and the connecting pin rises due to the influence of the liquid level, and the alarm turns on.

[0023] Wave-making stage: The sinking and floating controller controls the traction connector to rotate back and forth, and the single rotation angle is less than 360 degrees. At this time, the traction connector cannot reach the highest point, so that the upper end surface of the water bowl is always above the liquid surface every time the water bowl sinks and floats. At this time, the wave-making surface is affected by the connecting pipe, so that when the traction connector rotates to the bottom, the wave-making surface completely floats above the water surface. As it rotates to the highest point, the wave-making surface exerts downward pressure on the water surface, generating water ripples that spread around, pushing duckweed to the adjacent water bowl through water waves, so that duckweed in the distance enters the water diversion range of the water bowl, increasing the filtration impact area and filtration efficiency, and staggered control;

[0024] S3: When the equipment is in the wave-making stage and the wave-making surface drops to the lowest point, the lower half of the recoil water inlet pipe is below the water surface, and the float on the top of the pipe is above the recoil water inlet pipe and does not contact the water. At this time, the inside of the recoil water inlet pipe is unobstructed. Every time the wave-making surface drops, part of the liquid will flow in through the recoil water inlet pipe. At this time, the liquid enters the conical filter surface through the connecting pipe. A small amount of liquid flushes the conical filter surface, causing the filtered matter to accumulate on the accumulation filter surface. At the same time, it moves up and down, so that the filtered matter on the accumulation filter surface is fully in contact, reducing the gaps between the filtered matter.

[0025] The beneficial effects of the present invention are as follows: the present invention utilizes a liftable water-drawing bowl to realize a filtering state and a wave-making state, and through an alternating use mode, water waves can push duckweed to the vicinity of an adjacent water-drawing bowl, thereby increasing the filtering range of the duckweed, and at the same time utilizes the lifting and lowering of the wave-making in combination with backwashing water to flush the top of the conical filtering surface, and at the same time accumulates on the accumulated filtering surface to reduce the contact gap between the duckweeds, thereby increasing the storage capacity while reducing the impact on the filtering, and through large floating objects obstructing the filtering alarm component to block the floating lotus leaves and at the same time alarm the filtering blockage, thereby avoiding idling damage of the drainage pump, and the entire device realizes efficient duckweed cleaning in waters with surface plants without affecting the growth of the plants. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] The present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0027] Figure 1 It is a three-dimensional schematic diagram of a device for removing duckweed from the water surface;

[0028] Figure 2 It is a disassembled three-dimensional schematic diagram of a device for removing duckweed from the water surface;

[0029] Figure 3 It is a schematic diagram of a front cross section of a device for removing duckweed from a water surface;

[0030] Figure 4 for Figure 3 A magnified schematic diagram of part A;

[0031] Figure 5A schematic diagram of a water wave of a device for removing duckweed from the water surface;

[0032] Figure 6 A schematic diagram of another fixing method of a device for removing duckweed from a water surface;

[0033] Figure 7 A schematic diagram of wave-making recoil in a water surface duckweed removal device;

[0034] Figure 8 A schematic diagram of the use of a large floating object obstruction filtering alarm component in a water surface duckweed removal device;

[0035] In the figure:

[0036] 1. Water diversion bowl; 11. Wave-making surface; 12. Connecting pipe; 2. Filter collection chamber; 21. Arc-shaped closed door; 22. Conical filter surface; 23. Accumulated filter surface; 3. Pumping chamber; 31. Drainage pump; 4. Sinking and floating controller; 41. Turntable; 42. Motor; 43. Fixed column; 5. Traction connector; 51. Rotating sleeve; 52. Winding roller; 53. Adjusting nut; 54. Limit pin; 55. Threading hole; 56. Traction rope; 6. Backwash inlet pipe; 61. Pipe top float; 62. Floating closing plate; 7. Large floating objects obstructing filtration alarm assembly; 71. Center sleeve; 72. Connecting pin; 73. Alarm; 74. Connecting dividing strip. DETAILED DESCRIPTION

[0037] The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams that only illustrate the basic structure of the present invention in a schematic manner, and therefore only show the components related to the present invention, and directions and references (e.g., up, down, left, right, etc.) may only be used to help describe the features in the drawings. Therefore, the following specific embodiments are not to be taken in a limiting sense, and the scope of the subject matter claimed is limited only by the attached claims and their equivalents.

[0038] Embodiment 1:

[0039] like Figure 1-8 As shown, the present invention is a water surface duckweed removal device, comprising a plurality of spaced device bodies, each of which comprises a buoyant water inlet bowl 1, a buoyant filter collection chamber 2 and a pumping chamber 3, the bottom of the water inlet bowl 1 is provided with a wave-making surface 11, the water inlet bowl 1 is connected to the filter collection chamber 2 via a connecting pipe 12, and a sinking and floating control component for controlling the rise and fall of the wave-making surface 11 is arranged below the pumping chamber 3;

[0040] First, the water bowl 1 and the filter collection chamber 2 can be made of materials with low density, or a cavity can be set inside to increase buoyancy. The water bowl 1 is located below the water surface mainly to generate a vortex, and the filter collection chamber 2 is used to filter the liquid collected by the water bowl 1 and obtain duckweed. At the same time, the pumping chamber 3 is used to discharge the liquid filtered by the filter collection chamber 2, thereby forming a filtering cycle;

[0041] First, when the water-introducing bowl 1 and the filtering and collecting bin 2 are connected through the connecting pipe 12, there is a distance between the two. The setting of the connecting pipe 12 provides conditions for the use of the wave-making surface 11. When the wave-making surface 11 floats above the horizontal level, the filtering and collecting bin 2 will not be exposed. At this time, only a part of the connecting pipe 12 is exposed on the water surface. At this time, the wave-making surface 11 is lowered, so that the wave-making surface 11 exerts force on the water to form water waves that spread around. The purpose of the diffusion is to meet the requirement that when used in a lotus pond, water waves can still be generated in an area inside the lotus pond that is less affected by wind. The water waves can spread duckweed to the surroundings, thereby pushing duckweed outside the vortex influence area into the vortex influence area of ​​other water-introducing bowls 1, thereby increasing the water coverage area and improving the filtration efficiency at the same time.

[0042] When the upper end surface of the water bowl 1 drops below the water surface, the device body is in the filtering stage. When the water bowl 1 floats up and down and the upper end surface is always above the water surface, the device body is in the wave-making stage. Adjacent device bodies are in different stages at the same time.

[0043] The upper side wall of the water inlet bowl 1 is fixedly connected with a recoil water inlet pipe 6, which is communicated with the water inlet bowl 1, and the inner hole of the recoil water inlet pipe 6 is a square hole. The end of the recoil water inlet pipe 6 away from the water inlet bowl 1 is rotatably connected with a rotating shaft, and the rotating shaft is located at the top of the end, and the two ends of the rotating shaft are respectively fixed with a tube top floating ball 61 and a floating closing plate 62, the floating closing plate 62 is a square plate and is located inside the recoil water inlet pipe 6, and the tube top floating ball 61 is located outside the recoil water inlet pipe 6. When the equipment is in the filtering stage, the tube top floating ball 61 contacts with water and is affected by the floating The force rises, and the floating sealing plate 62 descends to block the end of the backwash water inlet pipe 6. When the equipment is in the wave-making stage, the pipe top float 61 separates from the water and descends, and the floating sealing plate 62 rises to open the end of the backwash water inlet pipe 6 to introduce a small amount of water flow; the interior of the filter collection bin 2 is provided with a conical filter surface 22 and a stacking filter surface 23, the conical filter surface 22 is located in the middle part of the filter collection bin 2 and protrudes upward, the conical filter surface 22 is used to cooperate with the water flow to scour and reduce the attachment of duckweed, and the stacking filter surface 23 is used to make the duckweed accumulate and gather in the wave-making stage;

[0044] The purpose of setting the backwash water inlet pipe 6 is to realize the subsequent wave-making backwashing. First, the duckweed after filtering will accumulate on the surface of the conical filter surface 22 and above the accumulation filter surface 23. Since there are gaps between the duckweed, the accumulated duckweed occupies a large space. At this time, the up and down movement of the wave-making is used to reduce the accumulation space of the duckweed a little. At this time, after the gaps of the accumulated duckweed above the accumulation filter surface 23 are reduced, it is easy to affect the passing amount of the bottom side of the conical filter surface 22, but the duckweed above the conical filter surface 22 is close to the bottom side of the conical filter surface 22. The attachment is not tight, so when the wave-making surface 11 descends, the float ball 61 on the top of the tube does not come into contact with water. At this time, the floating closing plate 62 is always located above the inner wall of the square hole of the recoil water inlet pipe 6. At this time, the passage inside the recoil water inlet pipe 6 is unobstructed. At this stage, as the wave-making surface 11 descends and creates waves, a certain amount of liquid will enter through the recoil water inlet pipe 6, and then flow to the top of the conical filtering surface 22 through the connecting pipe 12. Due to the wave-making stage, the duckweed near the water diversion bowl 1 has been cleaned up at this time, so the amount of duckweed at this stage is relatively small. Although in the filtering stage, when the water inlet bowl 1 is below the water surface, the surrounding duckweed will become less, but because the other wave-making surfaces 11 are making waves, the duckweed at the far end will still be pushed to the near filtering water inlet bowl 1. Therefore, when the liquid in this stage flows downward, there will still be duckweed. In the wave-making stage, the nearby duckweed is pushed to the surroundings. At this time, the duckweed retention of the liquid near the backwash water pipe 6 is lower, so the flushing effect on the conical filter surface 22 is better, so that the clean liquid can flush the conical filter surface 22, while ensuring the upper conical filter surface 22 The filtration efficiency is improved, and the advantage of setting the pipe top float 61 and the floating closing plate 62 is that during the filtration stage, the pipe top float 61 will be affected by the buoyancy and move upward. Since the pipe top float 61 and the floating closing plate 62 are fixed on both sides of the shaft, after the pipe top float 61 rises, the floating closing plate 62 drops. At this time, the floating closing plate 62 closes the backwash water inlet pipe 6, thereby avoiding the liquid from flowing into the filter collection bin 2 through the backwash water inlet pipe 6 during the filtration stage. Since the backwash water inlet pipe 6 is located below the water surface, it will not attract duckweed, thus causing ineffective drainage;

[0045] A large floating object obstruction filtering alarm assembly 7 is detachably mounted above the water guide bowl 1. The large floating object obstruction filtering alarm assembly 7 includes a center sleeve 71, a connecting pin 72, an alarm 73 and a connecting dividing strip 74. An alarm float is fixed to the bottom of the connecting pin 72. The alarm float is located at the center of the water guide bowl 1 and is used to drive the connecting pin 72 to rise and trigger the alarm 73 when the liquid level rises. There are multiple connecting dividing strips 74 that are spaced and distributed between the outer peripheral wall of the center sleeve 71 and the inner peripheral wall of the water guide bowl 1 to block large floating objects.

[0046] First, since there will be floating lotus leaves in the lotus pond, a large floating object obstruction filtering alarm component 7 is set. First, the central sleeve 71 is located at the center of the water diversion bowl 1. In order to make the central sleeve 71 fixedly connected with the water diversion bowl 1, the connecting dividing strips 74 are distributed in a ring around the central sleeve 71. At this time, the water diversion bowl 1 is divided into a plurality of fan-shaped areas. The fan-shaped areas can prevent the lotus leaves from being sucked into the interior of the water diversion bowl 1 and causing blockage. At the same time, the connecting dividing strips 74 are tilted. At this time, in the subsequent wave-making process, the upper lotus leaves can be shaken off, and the lotus leaves float to other areas through the water waves; when the device body is in the filtering state , the upper end surface of the water bowl 1 is located below the water surface and slightly lower than the water surface, water flows in along the wall of the water bowl 1, and because the bottom pumping bin 3 is used for drainage, the water inlet and drainage speeds are balanced, so that when the equipment is working normally, there is no water flow in the center of the water bowl 1, and the inside of the water bowl 1 is similar to a vortex state. When the filter collection bin 2 is blocked, and the liquid in the pumping bin 3 is too little at this time, it is easy to cause the drainage pump 31 to run without water, thereby reducing the life of the drainage pump 31. When the water flow cannot enter the pumping bin 3 for discharge, the water level in the water bowl 1 rises, and the alarm float drives the connecting pin 72 to rise to trigger the alarm;

[0047] The sinking and floating control assembly includes a sinking and floating controller 4 and a traction connector 5. A motor 42 is installed inside the sinking and floating controller 4. The two ends of the sinking and floating controller 4 are rotatably connected to a turntable 41. The traction connector 5 is eccentrically arranged on the outer wall of the turntable 41. The two traction connectors 5 correspond to each other, and each traction connector 5 includes a traction rope 56. The end of the traction rope 56 is fixed to the bottom of the water.

[0048] Since the up and down motion is a reciprocating motion, in order to simplify the structure, the sinking and floating controller 4 and the traction connector 5 are used to cooperate for control. First, the sinking and floating controller 4 drives the turntable 41 to rotate through the motor 42, and the traction connector 5 is eccentrically set on the surface of the turntable 41. As the turntable 41 rotates one circle, the traction connector 5 rotates from the lowest point of the turntable 41 to the highest point and then to the lowest point. The end of the traction rope 56 can be fixed below the water surface with a heavy counterweight or by a pin or anchor. Because the length of the traction rope 56 is fixed, when the traction connector 5 rotates to the bottom, the distance between the traction connector 5 and the fixed end of the rope is shortened, and the water bowl 1 rises. When the traction connector 5 rotates to the top, the distance between the traction connector 5 and the fixed end of the rope increases, and the water bowl 1 needs to move downward to make up for the distance difference. At this time, the water bowl 1 performs a cycle of rising, falling, and rising;

[0049] The traction connector 5 also includes a rotating sleeve 51, a winding roller 52 and an adjusting nut 53 threadedly connected to the end of the rotating sleeve 51. The outer wall of the turntable 41 is eccentrically fixedly connected with a fixing column 43. The winding roller 52 is rotatably connected between the fixing column 43 and the rotating sleeve 51, and the adjusting nut 53 is fixed with a limit pin 54 along its axial direction. The end of the winding roller 52 is provided with a plug-in groove along its axial direction, and the limit pin 54 is slidably connected inside the plug-in groove. The side wall of the rotating sleeve 51 is provided with a threading hole 55 for the traction rope 56 to pass through.

[0050] First, the bottom surface of the lotus pond may be uneven, so the water bowl 1 needs to be adjusted during installation to ensure that when the traction connector 5 rotates to the highest point, the water bowl 1 drops below the water surface. When the traction connector 5 rotates to the lowest point, the wave-making surface 11 is affected by the buoyancy of the filter collection bin 2 and rises above the water surface. Therefore, it is necessary to adjust the distance between the traction connector 5 and the fixed end of the traction rope 56, rotate the adjusting nut 53, and the limit pin 54 and the plug-in slot of the winding roller 52 slide relative to each other. At the same time, the limit pin 54 drives the winding roller 52 to rotate, so that the traction rope 56 is wound on the winding roller 52 through the threading hole 55;

[0051] The side of the filter collection bin 2 is detachably connected with an arc-shaped closed door 21, the conical filter surface 22 and the accumulation filter surface 23 are integrally formed, and the edge of the accumulation filter surface 23 has a flange structure, and the arc-shaped closed door 21 is fixedly connected to the accumulation filter surface 23; first, the filter collection bin 2 needs to collect excess water after collecting it, so after the arc-shaped closed door 21 is opened, the conical filter surface 22 and the accumulation filter surface 23 are completely separated from the filter collection bin 2 along with the arc-shaped closed door 21, and the duckweed can be processed uniformly at this time;

[0052] The radius of the pipe top float 61 is smaller than the height of the square hole of the backwash water inlet pipe 6; in order to meet the condition that the backwash water inlet pipe 6 can be filled with water, the pipe top float 61 will not contact the water surface at this time, thereby avoiding the triggering of the floating sealing plate 62;

[0053] The diameter of the drainage bin 3 is smaller than the middle diameter of the filter collection bin 2. A drainage pump 31 is installed inside the drainage bin 3. The discharge pipe of the drainage pump 31 extends to the outside of the drainage bin 3. At this time, the discharge pipe of the drainage pump 31 is located below the water surface for discharge, which can prevent the water flow from affecting the area above the water surface.

[0054] In actual use, when the sinking and floating controller 4 cooperates with the traction connector 5, the water diversion bowl 1 may be tilted as the turntable 41 rotates. In order to improve this situation, a column can be set below the water surface and a guide ring can be set on the side of the filter collection bin 2, so as to achieve directional movement of the filter collection bin 2.

[0055] In order to prevent the center sleeve 71, the connecting pin 72 and the touch-pressure switch under the alarm 73 from colliding and opening due to inertia in the wave-generating state, the touch-pressure switch of the alarm 73 is set as a delay switch. The touch-pressure switch can be pressed for 5 seconds or 10 seconds at will without affecting the service life of the drainage pump 31 to control the alarm 73 to turn on the alarm.

[0056] A method for using the above-mentioned water surface duckweed removal device comprises the following steps:

[0057] S1: Adjust the length of the traction rope 56 according to the terrain. First, fix the traction rope 56 on the bottom fixed surface. Reel in the traction rope 56 by adjusting the nut 53, so that the traction connector 5 rotates to the lowest point, the wave-making surface 11 is located above the water surface, and the traction connector 5 rotates to the highest point, and the upper end surface of the water diversion bowl 1 is located below the water surface.

[0058] S2: Divide a number of devices distributed in the water area into group a and group b. Group a and group b are staggered and filter alternately. When group a is in the filtering stage, group b is in the wave-making stage. When group a is in the wave-making stage, group b is in the filtering stage.

[0059] Filtration stage: At this time, the traction connector 5 is controlled by the sinking and floating controller 4 to rotate upward. At this time, the water bowl 1 is below the water surface. The surrounding liquid level is higher than the upper end surface of the water bowl 1 and flows below the water bowl 1. The liquid is discharged by the drainage pump 31. The filtered liquid filters the duckweed on the conical filtering surface 22 and the accumulation filtering surface 23. At this time, large floating objects such as floating lotus leaves are blocked by the connecting dividing strip 74 and cannot enter the interior of the water bowl 1. When there are too many filtered objects and the filtering of the conical filtering surface 22 fails, the liquid level inside the water bowl 1 rises, and the connecting pin 72 rises due to the influence of the liquid level, and the alarm 73 turns on the alarm;

[0060] Wave-making stage: the sinking and floating controller 4 controls the traction connector 5 to rotate back and forth, and the single rotation angle is less than 360 degrees. At this time, the traction connector 5 cannot reach the highest point, so that the upper end surface of the water bowl 1 is always above the liquid surface every time the water bowl 1 sinks and floats. At this time, the wave-making surface 11 is affected by the connecting tube 12, so that when the traction connector 5 rotates to the bottom, the wave-making surface 11 completely floats above the water surface. As it rotates to the highest point, the wave-making surface 11 exerts downward pressure on the water surface, generating water ripples that spread around, and pushes duckweed to the adjacent water bowl 1 through water waves, so that duckweed in the distance enters the water diversion range of the water bowl 1, increasing the filtration influence area and filtration efficiency, and staggered control;

[0061] S3: When the equipment is in the wave-making stage and the wave-making surface drops to the lowest point, the lower half of the recoil water inlet pipe 6 is below the water surface, and the float ball 61 on the top of the pipe is above the recoil water inlet pipe 6 and does not contact the water. At this time, the inside of the recoil water inlet pipe 6 is unobstructed. At this time, each time the wave-making surface 11 drops, part of the liquid will flow in through the recoil water inlet pipe 6. At this time, the liquid enters the conical filter surface 22 through the connecting pipe 12. A small amount of liquid flushes the conical filter surface 22, so that the filtered matter is accumulated on the accumulation filter surface 23, and at the same time moves up and down, so that the filtered matter located on the accumulation filter surface 23 is fully in contact, and the gaps between the filtered matter are reduced.

[0062] The above-mentioned ideal embodiments of the present invention are for inspiration. Through the above-mentioned description, relevant staff can make various changes and modifications without departing from the technical idea of ​​the present invention. The technical scope of the present invention is not limited to the contents of the specification, and its technical scope must be determined according to the scope of the claims.

Claims

1. A water surface duckweed removal device, characterized in that: The invention comprises a plurality of equipment bodies which are arranged at intervals, each equipment body comprising a water inlet bowl (1) with buoyancy, a filter collection chamber (2) with buoyancy and a pumping chamber (3), the bottom of the water inlet bowl (1) having a wave-making surface (11), the water inlet bowl (1) being connected to the filter collection chamber (2) via a connecting pipe (12), and a sinking and floating control component for controlling the rise and fall of the wave-making surface (11) being arranged below the pumping chamber (3); When the upper end surface of the water diversion bowl (1) drops below the water surface, the device body is in the filtering stage; when the water diversion bowl (1) floats up and down and the upper end surface is always above the water surface, the device body is in the wave-making stage; adjacent device bodies are in different stages at the same time; The side wall of the water diversion bowl (1) is fixedly connected with a recoil water inlet pipe (6); one end of the recoil water inlet pipe (6) away from the water diversion bowl (1) is rotatably connected with a rotating shaft; two ends of the rotating shaft are respectively fixed with a pipe top floating ball (61) and a floating sealing plate (62); when the floating ball (61) rises due to buoyancy, the floating sealing plate (62) descends to block the end of the recoil water inlet pipe (6); when the floating ball (61) is separated from the water and descends, the floating sealing plate (62) rises to open the end of the recoil water inlet pipe (6); The filter collection bin (2) is provided with a conical filter surface (22) and a stacking filter surface (23) inside, wherein the conical filter surface (22) is located in the middle of the filter collection bin (2) and protrudes upwards; A large floating object obstruction filtration alarm component (7) is detachably mounted above the water diversion bowl (1) and is used to block large floating objects and to sound an alarm when the water level of the water diversion bowl (1) rises; The sinking and buoyancy control assembly comprises a sinking and buoyancy controller (4) and a traction connector (5), wherein a motor (42) is installed inside the sinking and buoyancy controller (4), and both ends of the sinking and buoyancy controller (4) are rotatably connected to a turntable (41), and the traction connector (5) is eccentrically arranged on the outer wall of the turntable (41), and the two traction connectors (5) correspond to each other, and each traction connector (5) comprises a traction rope (56), and the end of the traction rope (56) is fixed to the bottom of the water; The large floating object obstruction filtration alarm assembly (7) comprises a central sleeve (71), a connecting pin (72), an alarm (73) and a connecting and separating strip (74); an alarm float is fixed to the bottom of the connecting pin (72); the alarm float is located at the center of the water guide bowl (1) and is used to drive the connecting pin (72) to rise and trigger the alarm (73) when the liquid level rises; a plurality of connecting and separating strips (74) are spaced apart and distributed between the outer peripheral wall of the central sleeve (71) and the inner peripheral wall of the water guide bowl (1); A drainage pump (31) is installed inside the drainage bin (3), and a discharge pipe of the drainage pump (31) extends to the outside of the drainage bin (3).

2. The device for removing duckweed from water surface according to claim 1, characterized in that: The traction connector (5) further comprises a rotating sleeve (51), a winding roller (52) and an adjusting nut (53) threadedly connected to the end of the rotating sleeve (51); a fixing column (43) is eccentrically fixedly connected to the outer wall of the rotating disk (41); the winding roller (52) is rotatably connected between the rotating sleeve (51) and the fixing column (43); a limiting pin (54) is fixedly disposed on the adjusting nut (53) along its axial direction; a plug-in groove is provided at the end of the winding roller (52) along its axial direction; the limiting pin (54) is slidably connected inside the plug-in groove; and a threading hole (55) is provided on the side wall of the rotating sleeve (51) for the traction rope (56) to pass through.

3. The device for removing duckweed from water surface according to claim 1, characterized in that: The side wall of the filter collection bin (2) is detachably mounted with an arc-shaped closed door (21); the conical filter surface (22) and the stacking filter surface (23) are integrally formed, and the arc-shaped closed door (21) and the stacking filter surface (23) are fixedly connected.

4. The device for removing duckweed from water surface according to claim 1, characterized in that: The inner hole of the backwash water inlet pipe (6) is a square hole, and the floating sealing plate (62) is a square plate.

5. The device for removing duckweed from water surface according to claim 4, characterized in that: The radius of the pipe top float (61) is smaller than the height of the square hole of the backwash water inlet pipe (6).

6. The device for removing duckweed from water surface according to claim 1, characterized in that: Each connecting and dividing strip (74) is gradually inclined downward from the central sleeve (71) toward the inner peripheral wall of the water guide bowl (1).

7. A method for using the device for removing duckweed from a water surface according to any one of claims 1 to 6, characterized in that: The steps include: S1: adjusting the length of the traction rope (56) according to the terrain, first fixing one end of the traction rope (56) on an underwater fixed surface, and reeling in the traction rope (56) by adjusting the nut (53), so that when the traction connector (5) is rotated to the lowest point, the wave-making surface (11) is located above the water surface, and when the traction connector (5) is rotated to the highest point, the upper end surface of the water guide bowl (1) is located below the water surface; S2: Divide a number of equipment bodies distributed in the water area into group a and group b. Group a and group b are staggered and filter alternately. When group a is in the filtering stage, group b is in the wave-making stage. When group a is in the wave-making stage, group b is in the filtering stage. Filtration stage: the traction connector (5) is controlled to rotate upwards by the sinking and floating controller (4). At this time, the water guide bowl (1) is located below the water surface. The surrounding liquid level is higher than the upper end surface of the water guide bowl (1) and flows toward the bottom of the water guide bowl (1). The liquid is discharged by the drainage pump (31). The filtered liquid filters duckweed on the conical filtering surface (22) and the accumulation filtering surface (23). At this time, large floating objects such as floating lotus leaves are blocked by the connecting partition bar (74) and cannot enter the interior of the water guide bowl (1). When there are too many filtered objects and the conical filtering surface (22) fails to filter, the liquid level inside the water guide bowl (1) rises, the connecting pin (72) rises due to the influence of the liquid level, and the alarm (73) turns on the alarm; Wave-making stage: the sinking and floating controller (4) controls the traction connector (5) to adopt reciprocating rotation, and the single rotation angle is less than 360 degrees. At this time, the traction connector (5) cannot reach the highest point, so that each time the water guide bowl (1) sinks and floats, the upper end surface of the water guide bowl (1) is always located above the liquid surface. At this time, the wave-making surface (11) is affected by the connecting pipe (12), so that when the traction connector (5) rotates to the bottom, the wave-making surface (11) completely floats above the water surface. As it rotates to the highest point, the wave-making surface (11) exerts downward pressure on the water surface, generating water ripples that spread out in all directions, and pushes duckweed to the adjacent water guide bowl (1) through the water waves, so that duckweed in the distance enters the water guide range of the water guide bowl (1), thereby increasing the filtering influence area and filtering efficiency, and staggered control; S3: When the device is in the wave-generating stage and the wave-generating surface (11) drops to the lowest point, the lower half of the backwash water inlet pipe (6) is located below the water surface, and the pipe top float (61) is located above the backwash water inlet pipe (6) and does not contact the water. At this time, the inside of the backwash water inlet pipe (6) is unobstructed. Each time the wave-generating surface (11) drops, part of the liquid will flow in through the backwash water inlet pipe (6). At this time, the liquid enters the conical filter surface (22) through the connecting pipe (12). A small amount of liquid flushes the conical filter surface (22), causing the filtered matter to accumulate on the accumulation filter surface (23). At the same time, the liquid moves up and down, causing the filtered matter on the accumulation filter surface (23) to fully contact, thereby reducing the gaps between the filtered matter.

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