Multilayer ecological protection and restoration method and restoration device for river channel

Abstract

The invention relates to the technical field of water pollution treatment, in particular to a riverway multi-layer ecological protection restoration method and a restoration device thereof.The restoration device comprises a ring plate, an air bag is fixedly connected to the outer surface of the ring plate, a U-shaped plate is fixedly connected to the top of the ring plate, a supporting column is fixedly connected to the bottom of the U-shaped plate, and an algae filtering assembly is fixedly connected to the outer surface of the supporting column; the bottom of the supporting column is fixedly connected with an aeration disc, and the bottom of the aeration disc is fixedly connected with an aeration assembly. Through cooperative arrangement of a movable disc, a second connecting rod and a first fixing rod, when an air cylinder drives the movable disc to move downwards, eight second top spraying pipes can move outwards, and then the second top spraying pipes can conduct aeration work on the position farther away from an anoxic layer; and when an air cylinder drives a movable disc to move upwards, a second top spraying pipe enters the interior of a first top spraying pipe, and then the area of the bottom of the equipment is reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of water pollution control, and in particular to a river channel multi-layer ecological protection and restoration method and a restoration device thereof. Background Art

[0002] In order to restore the ecological function of the river and provide a habitat for organisms, multi-layer river ecological protection and restoration devices are usually required.

[0003] For example, the patent document with publication number CN119038758A in the prior art provides a multi-layer ecological protection and restoration method for a river channel and a restoration device thereof. Through structures such as an upper sleeve, a rubber airbag and an adjusting auger, the edge nozzle can accurately float to the eutrophic water layer, and then accurately aerate the eutrophic water layer passing through the edge nozzle.

[0004] However, the device still has the following problems: because the anoxic layer is generally located at a deeper position and there is a lack of oxygen, the water density in the anoxic layer is relatively high, which makes it difficult for the edge nozzles to break through the water body, and then the edge nozzles of the annular aeration cannot aerate the farther anoxic layer, which in turn affects the aeration efficiency of the equipment. Moreover, because the annular aeration mainly relies on the horizontal movement of the water flow to diffuse oxygen to all layers of the water body, the gas exchange efficiency in the water is low, which further affects the aeration efficiency of the equipment.

[0005] Therefore, a multi-layer river ecological protection and restoration method and a restoration device thereof are proposed to solve the above-mentioned problems. Summary of the Invention

[0006] The purpose of the present invention is to solve the problems in the background technology and to propose a multi-layer river ecological protection and restoration method and a restoration device.

[0007] In order to achieve the above-mentioned objectives, the present invention adopts the following technical solutions: a multi-layer river channel ecological protection and restoration device, comprising a ring plate, an air bag fixedly connected to the outer surface of the ring plate, a U-shaped plate fixedly connected to the top of the ring plate, a support column fixedly connected to the bottom of the U-shaped plate, an algae filter assembly fixedly connected to the outer surface of the support column, an aeration disk fixedly connected to the bottom of the support column, an aeration assembly fixedly connected to the bottom of the aeration disk, an air transmission assembly fixedly connected to the center of the top of the U-shaped plate, cylinders fixedly connected to the front and rear ends of the top of the U-shaped plate, a control assembly fixedly connected to the output ends of the two cylinders, and an infusion assembly fixedly connected to one side of the top of the U-shaped plate; The control assembly includes a movable disk, and both sides of the top of the movable disk are fixedly connected to the second fixing seat, the interior of the second fixing seat is fixedly connected to the third fixing rod, the outer surface of the third fixing rod is rotatably connected to the first connecting rod, the notch at the other end of the first connecting rod is connected to the algae filter assembly, eight third fixing seats are fixedly connected to the outer surface of the movable disk, the interior of the third fixing seat is fixedly connected to the fourth fixing rod, the outer surface of the fourth fixing rod is rotatably connected to the second connecting rod, and the notch at the other end of the second connecting rod is connected to the aeration assembly.

[0008] In the above-mentioned multi-layer river ecological protection and restoration device, the gas transmission component includes an air pump, the top of the air pump is fixedly connected to an air extraction pipe, the bottom of the air pump is fixedly connected to an exhaust pipe, and the bottom of the exhaust pipe is located inside the support column.

[0009] In the above-mentioned multi-layer river ecological protection and restoration device, the aeration assembly includes an air distribution plate, eight first top nozzles are fixedly connected to the circumference of the outer surface of the air distribution plate, the second top nozzles are slidably connected to the inside of the first top nozzles, and the side of the second top nozzle away from the center of the air distribution plate is fixedly connected to the first fixing seat, the inside of the first fixing seat is fixedly connected to the first fixing rod, and the outer surface of the first fixing rod is connected to the notch of the second connecting rod.

[0010] In the above-mentioned multi-layer river ecological protection and restoration device, the algae filter assembly includes a storage box and a fixed plate. A filter groove is provided on the outer surface of the bottom of the storage box. The top of the storage box is sealed and connected to a top cover, and the bottom of the top cover is fixedly connected to a filter plate.

[0011] In the above-mentioned multi-layer ecological protection and restoration device for a river channel, there are two fixed plates, and the sides of the two fixed plates close to the center of the top cover are connected to the storage box, and the sides of the two fixed plates away from the top cover are fixedly connected to springs, and the side of the spring away from the top cover is fixedly connected to a limiting plate, and the side of the limiting plate close to the spring is fixedly connected to a movable rod, and the side of the movable rod close to the top cover is fixedly connected to a groove plate, and the top of the groove plate is fixedly connected to an L-shaped plate, and the inside of the groove plate is fixedly connected to a second fixed rod, and the outer surface of the second fixed rod is connected to the notch of the first connecting rod.

[0012] In the above-mentioned multi-layer river channel ecological protection and restoration device, the top of the top cover is in contact with the bottom of the L-shaped plate.

[0013] In the above-mentioned multi-layer river ecological protection and restoration device, the infusion component includes a liquid pump, the bottom of the liquid pump is fixedly connected to a liquid pumping tube, the bottom of the liquid pumping tube passes through the U-shaped plate and extends to the outside thereof, and one side of the liquid pump is fixedly connected to a liquid discharge tube, the bottom of the liquid discharge tube passes through the U-shaped plate and the top cover and extends to the outside thereof.

[0014] In the above-mentioned multi-layer river ecological protection and restoration device, the inner diameter of the movable disk is adapted to the outer diameter of the storage box, and the length range from the top to the bottom of the movable disk is greater than the length range from the top to the bottom of the filter tank.

[0015] The repair method of the above-mentioned river channel multi-layer ecological protection and repair device comprises the following steps: Step 1: Placement: The user first needs to inflate the airbag using an external inflation device, then tie one side of the airbag with a rope, and finally place the device on the surface of the river, so that the liquid extraction tube is located in the algae growth layer, and the aeration plate and aeration assembly are in the anoxic layer; Step 2: Waiting for repair: The user needs to operate the cylinder so that the cylinder can drive the movable plate to move downward, thereby separating the movable plate from the filter tank. This can not only make the two first connecting rods drive the two slot plates to move inward, and then make the L-shaped plate move inward, and then make the L-shaped plate fix the top cover, but also make the eight second connecting rods drive the eight first fixing seats to move outward, and then make the eight second top nozzles move outward; Step 3: Repair stage: The user needs to operate the vacuum pump so that the vacuum pipe extracts external gas, and then transmits oxygen through the exhaust pipe through the support column to the inside of the aeration plate and the air distribution plate. The gas entering the aeration plate will be transmitted to its surroundings through the aeration plate, and the gas entering the air distribution plate will be transmitted to the top of the two through the first top nozzle and the second top nozzle. Then the user needs to operate the liquid extraction pump so that the liquid extraction pipe extracts the liquid and algae in the algae growth layer, and then discharge the algae and liquid into the storage tank through the discharge pipe. Finally, the liquid without algae is discharged back to the algae growth layer through filtration through the filter plate and filter tank; Step 4: Cleaning stage: The user needs to run the cylinder in reverse to move the movable plate to the filter tank, which can make the first connecting rod apply an outward force to the tank plate, thereby separating the L-shaped plate from the top cover, and the second connecting rod can apply an inward force to the first fixed seat, thereby retracting the second top nozzle into the inside of the first top nozzle. Then the user can apply tension to the rope to make the device float to the user's side, and then the user can apply tension to the top cover to separate the top cover and the filter plate from the storage box. Finally, the user can clean the algae on the top of the filter plate and inside the storage box.

[0016] Compared with existing technologies, the advantages of this multi-layer river channel ecological protection and restoration method and its restoration device are: 1. The device is arranged in coordination with the movable disk, the second connecting rod and the first fixed rod, so that when the cylinder drives the movable disk to move downward, the eight second top nozzles can move outward, so that the second top nozzles can aerate a farther position of the anoxic layer, thereby increasing the repair range of the equipment for the anoxic layer of the river channel. When the cylinder drives the movable disk to move upward, the second top nozzles can enter the interior of the first top nozzles, thereby reducing the area of ​​the bottom of the equipment, making it easier for users to recycle the equipment. The bottom-up aeration method can promote vertical mixing of the water body through the effect of rising water flow, so that the upper water body of the anoxic layer and the bottom water body have good gas exchange, thereby increasing the dissolved oxygen concentration in the water body.

[0017] 2. This device is equipped with a storage box, a filter tank and a filter plate. It can not only receive the liquid and algae extracted by the infusion component, but also filter the algae in the liquid. Finally, it can discharge the filtered liquid back to the surface of the river through the notch of the filter tank. It can reduce the concentration of some nutrients in the water by reducing the algae, thereby reducing the eutrophication of the algae growth layer in the river, and thus improving the repair efficiency of the equipment.

[0018] 3. This device is arranged in coordination with the movable disk, the first connecting rod and the second fixed rod, so that when the cylinder drives the movable disk to move downward, the two second fixed rods can move the two L-shaped plates inward, and the L-shaped plates can fix the position of the top cover, thereby preventing the top cover from separating from the storage box when the infusion component is transmitting liquid and algae, causing the algae to be discharged back to the river surface through the top of the storage box, thereby ensuring the repair quality of the equipment. When the cylinder drives the movable disk to move upward, the L-shaped plate can move outward, and the L-shaped plate can be separated from the top cover, allowing the user to clean the algae on the top of the filter plate and inside the storage box. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the overall front structure of the present invention; Figure 2 This is a schematic diagram of the front cross-sectional structure of the U-shaped plate of the present invention; Figure 3 This is a schematic diagram of the front cross-sectional structure of the infusion assembly of the present invention; Figure 4 This is a schematic diagram of the side cross-sectional structure of the U-shaped plate of the present invention; Figure 5 This is a schematic diagram of the front structure of the overall local structure of the present invention; Figure 6 It is a schematic diagram of the front cross-sectional structure of the overall local structure of the present invention; Figure 7 This invention Figure 6A magnified view of the structure in the middle; Figure 8 This invention Figure 6 A magnified view of the structure in middle B.

[0020] In the figure: 1. ring plate; 2. air bag; 3. U-shaped plate; 4. support column; 5. aeration plate; 6. cylinder; 7. suction pump; 8. suction pipe; 9. exhaust pipe; 10. gas distribution plate; 11. first top nozzle; 12. second top nozzle; 13. first fixed seat; 14. first fixed rod; 15. storage box; 16. filter tank; 17. fixed plate; 18. spring; 19. limit plate; 20. movable rod; 21. trough plate; 22. L-shaped plate; 23. second fixed rod; 24. top cover; 25. filter plate; 26. movable plate; 27. second fixed seat; 28. third fixed rod; 29. ​​first connecting rod; 30. third fixed seat; 31. fourth fixed rod; 32. second connecting rod; 33. suction pump; 34. suction pipe; 35. discharge pipe. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0022] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as limiting the present invention.

[0023] Reference Figures 1-8 A multi-layer ecological protection and restoration device for a river channel includes a ring plate 1, an air bag 2 is fixedly connected to the outer surface of the ring plate 1, a U-shaped plate 3 is fixedly connected to the top of the ring plate 1, a support column 4 is fixedly connected to the bottom of the U-shaped plate 3, an algae filter component is fixedly connected to the outer surface of the support column 4, and an aeration plate 5 is fixedly connected to the bottom of the support column 4, an aeration component is fixedly connected to the bottom of the aeration plate 5, and a gas transmission component is fixedly connected to the center of the top of the U-shaped plate 3. The gas transmission component includes an air pump 7, an air pump 7 is fixedly connected to the top of the air pump 7, and an exhaust pipe 8 is fixedly connected to the bottom of the air pump 7. The bottom of the exhaust pipe 9 is located inside the support column 4. The operation of the air pump 7 allows the air pump 8 to extract external gas, and then the gas can be discharged into the interior of the support column 4 through the exhaust pipe 9.

[0024] The front and rear ends of the top of the U-shaped plate 3 are fixedly connected to the cylinder 6, and the output ends of the two cylinders 6 are fixedly connected to the control assembly. The operation of the cylinder 6 can drive the control assembly to move up and down. The control assembly includes a movable disk 26, and both sides of the top of the movable disk 26 are fixedly connected to the second fixed seat 27, and the interior of the second fixed seat 27 is fixedly connected to the third fixed rod 28. The outer surface of the third fixed rod 28 is rotatably connected to the first connecting rod 29, and the notch at the other end of the first connecting rod 29 is connected to the filter algae assembly. The outer surface of the movable disk 26 is circumferentially fixedly connected to eight third fixed seats 30, and the interior of the third fixed seat 30 is fixedly connected to the fourth fixed rod 31. The outer surface of the fourth fixed rod 31 is rotatably connected to the second connecting rod 32, and the notch at the other end of the second connecting rod 32 is connected to the aeration assembly. One side of the top of the U-shaped plate 3 is fixedly connected to the infusion assembly.

[0025] The downward movement of the movable disk 26 can cause the first connecting rod 29 to generate a pulling force to move the algae filter assembly inward, and can also cause the second connecting rod 32 to generate a pulling force to move the aeration assembly outward. The upward movement of the movable disk 26 can cause the first connecting rod 29 to generate a pulling force to move the algae filter assembly outward, and can also cause the second connecting rod 32 to generate a pulling force to move the aeration assembly inward.

[0026] Reference Figure 4-Figure 8The filter algae assembly includes a storage box 15 and a fixed plate 17. The storage box 15 is set up to store liquid. There are two fixed plates 17. The two fixed plates 17 are connected to the storage box 15 on one side close to the center of the top cover 24. The two fixed plates 17 are fixedly connected to the spring 18 on the side away from the top cover 24. The spring 18 is fixedly connected to the limit plate 19 on the side away from the top cover 24. The limit plate 19 is fixedly connected to a movable rod 20 on the side close to the spring 18. The movable rod 20 is fixedly connected to a groove plate 21 on the side close to the top cover 24. The top of the groove plate 21 is fixedly connected to an L-shaped plate 22. The inside of the groove plate 21 is fixedly connected to a second fixed rod 23. The outer surface of the second fixed rod 23 is connected to the notch of the first connecting rod 29. The outer surface of the bottom of the storage box 15 is provided with a filter groove 16. The opening of the filter groove 16 can store the liquid in the storage box 15. The top of the storage box 15 is sealed with a top cover 24, and the top of the top cover 24 contacts the bottom of the L-shaped plate 22. When the second fixing rod 23 is subjected to an outward force, the second fixing rod 23 will move the L-shaped plate 22 outward, and then the L-shaped plate 22 and the top cover 24 will be in a separated state, so that the user can move the top cover 24 by hand, and the user can clean the inside of the storage box 15. When the second fixing rod 23 is subjected to an inward force, the second fixing rod 23 will move the L-shaped plate 22 inward, and then the top cover 24 can be fixed. The bottom of the top cover 24 is fixedly connected to the filter plate 25, and the inner diameter of the movable disk 26 is adapted to the outer diameter of the storage box 15, and the length range from the top to the bottom of the movable disk 26 is greater than the length range from the top to the bottom of the filter tank 16.

[0027] pass Figure 4 It can be seen that the bottom of the top cover 24 has a rod connected to the filter plate 25, and the rod has a certain length. Therefore, after the user moves the top cover 24 out of the storage box 15, it is convenient for the user to clean the algae on the top of the filter plate 25.

[0028] The aeration assembly includes an air distribution plate 10, and eight first top nozzles 11 are fixedly connected to the circumference of the outer surface of the air distribution plate 10, and the second top nozzle 12 is slidably connected to the inside of the first top nozzle 11. The second top nozzle 12 is fixedly connected to a first fixing seat 13 on the side away from the center of the air distribution plate 10, and the inside of the first fixing seat 13 is fixedly connected to a first fixing rod 14. When the first fixing rod 14 is subjected to an outward force, the second top nozzle 12 will move outward, thereby increasing the range of aeration, and when the first fixing rod 14 is subjected to an inward force, the second top nozzle 12 will enter the inside of the first top nozzle 11, thereby reducing the lateral size of the equipment, thereby facilitating the user to recycle the equipment. The outer surface of the first fixing rod 14 is connected to the slot of the second connecting rod 32. The air distribution plate 10 can receive the gas at the support column 4, and then can lead the gas to the first top nozzle 11 and the second top nozzle 12, thereby allowing the first top nozzle 11 and the second top nozzle 12 to perform upward aeration.

[0029] Reference Figure 4 The infusion component includes a liquid suction pump 33, and a liquid suction tube 34 is fixedly connected to the bottom of the liquid suction pump 33. The bottom of the liquid suction tube 34 passes through the U-shaped plate 3 and extends to the outside thereof. A drainage tube 35 is fixedly connected to one side of the liquid suction pump 33. The bottom of the drainage tube 35 passes through the U-shaped plate 3 and the top cover 24 and extends to the outside thereof. The operation of the liquid suction pump 33 allows the liquid suction tube 34 to extract the liquid from the algae growth layer, and then the liquid can be discharged into the interior of the storage tank 15 through the drainage tube 35.

[0030] The repair method of the above-mentioned river channel multi-layer ecological protection and restoration device comprises the following steps: Step 1: Placement: The user first needs to inflate the airbag 2 using an external inflation device, then tie one side of the airbag 2 with a rope, and finally place the device on the surface of the river, so that the liquid extraction tube 34 is located in the algae growth layer, and the aeration plate 5 and aeration assembly are located in the anoxic layer; Step 2: Waiting for repair: The user needs to operate the cylinder 6 so that the cylinder 6 can drive the movable plate 26 to move downward, thereby separating the movable plate 26 from the filter tank 16. This can cause the two first connecting rods 29 to drive the two slot plates 21 to move inward, thereby causing the L-shaped plate 22 to move inward, thereby allowing the L-shaped plate 22 to secure the top cover 24. It can also cause the eight second connecting rods 32 to drive the eight first fixing seats 13 to move outward, thereby allowing the eight second top nozzles 12 to move outward. Step 3: Repair stage: The user needs to operate the vacuum pump 7 so that the vacuum pipe 8 extracts external gas, and then transmits oxygen through the exhaust pipe 9 through the support column 4 to the inside of the aeration plate 5 and the gas distribution plate 10. The gas entering the aeration plate 5 will be transmitted to its surroundings through the aeration plate 5, and the gas entering the gas distribution plate 10 will be transmitted to the top of the two through the first top nozzle 11 and the second top nozzle 12. Then the user needs to operate the liquid extraction pump 33 so that the liquid extraction pipe 34 extracts the liquid and algae in the algae growth layer, and then discharge the algae and liquid into the interior of the storage tank 15 through the drain pipe 35. Finally, the liquid without algae is filtered through the filter plate 25 and the filter tank 16 and discharged back to the algae growth layer; Step 4: Cleaning stage: The user needs to run the cylinder 6 in reverse to move the movable disk 26 to the filter tank 16, which can make the first connecting rod 29 apply an outward force to the tank plate 21, thereby separating the L-shaped plate 22 from the top cover 24, and can also make the second connecting rod 32 apply an inward force to the first fixed seat 13, thereby retracting the second top nozzle 12 to the inside of the first top nozzle 11, and then the user can apply tension to the rope to make the device float to the user's periphery, and then the user can apply tension to the top cover 24 to separate the top cover 24 and the filter plate 25 from the storage box 15, and finally the user can clean the algae on the top of the filter plate 25 and inside the storage box 15.

[0031] The specific working principle and usage of the present invention are explained in detail below: During the use of the device, the user needs to first use an external inflation device to inflate the airbag 2, thereby expanding the airbag 2, and then let the inflated airbag 2 float on the river with the device. Then, the user needs to tie one side of the airbag 2 with a rope, and then tie the other side of the rope to an object around the river to prevent the device from floating away. Finally, the device is pushed to the repair position through the external pushing device, so that the liquid extraction tube 34 is located. The algae growth layer, and the aeration plate 5 and the aeration assembly are located in the anoxic layer, and then the user needs to operate the cylinder 6 so that the cylinder 6 can drive the movable plate 26 to move downward, and then separate the movable plate 26 from the filter tank 16. The downward movement of the movable plate 26 can not only make the two first connecting rods 29 exert an inward force on the two slot plates 21, and then make the L-shaped plate 22 move inward, and then make the L-shaped plate 22 restrict the top cover 24, but also make the eight second connecting rods 32 on the eight first fixing seats 1 3 applies an outward moving force, thereby allowing the first fixing rod 14 to move outward with the second top nozzle 12, so that the second top nozzle 12 can aerate the further anoxic layer, and then operate the suction pump 7, so that the suction pipe 8 extracts the external gas, and then transmits the gas to the support column 4 through the exhaust pipe 9, and then transmits the gas to the aeration plate 5 and the gas distribution plate 10 in sequence through the support column 4. In this process, the gas transmitted to the aeration plate 5 will be discharged to the surrounding areas through the nozzle on the outside of the aeration plate 5. Aeration is performed, and the gas transmitted to the gas distribution plate 10 will pass through the first top nozzle 11 and the second top nozzle 12 in sequence, and then aerate the anoxic layer through the air outlet at the top thereof, and finally the liquid extraction pump 33 is operated to make the liquid extraction pipe 34 extract the liquid and algae in the algae growth layer, and then transmit the liquid and algae to the interior of the storage tank 15 through the discharge pipe 35, and then let the filter plate 25 and the filter tank 16 filter the algae, and then the liquid returns to the algae growth layer through the filter tank 16.

[0032] It should be noted that after the filter plate 25 and the filter tank 16 have filtered a certain amount of algae, the user needs to reverse the operation of the cylinder 6 to move the movable disk 26 upward, thereby allowing the movable disk 26 to seal the filter tank 16. During this process, the upward movement of the movable disk 26 can not only apply an outward force to the two second fixed rods 23 through the two first connecting rods 29, so that the L-shaped plate 22 no longer fixes the top cover 24, but also allow the eight second connecting rods 32 to apply an inward force to the first fixed rod 14, thereby allowing the second top nozzle 12 to move completely to the inside of the first top nozzle 11, thereby reducing the area of ​​the bottom of the device, and finally allowing the user to use the rope to bring the device close to himself, and then the user can lift the top cover 24 by hand, thereby allowing the filter plate 25 to leave the inside of the storage box 15, and then allowing the user to clean the algae on the top of the filter plate 25 and inside the storage box 15.

[0033] It is further explained that the above-mentioned fixed connection should be understood in a broad sense unless otherwise clearly specified and limited. For example, it can be welding, gluing, or one-piece molding, etc., which are common means well known to those skilled in the art.

[0034] The above description is only a preferred specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any technician familiar with the technical field, within the technical scope disclosed by the present invention, who makes equivalent replacements or changes based on the technical solution and inventive concept of the present invention, should be covered by the scope of protection of the present invention.

Claims

1. A multi-layer river ecological protection and restoration device, comprising a ring plate, characterized in that: The outer surface of the ring plate is fixedly connected to an air bag, the top of the ring plate is fixedly connected to a U-shaped plate, the bottom of the U-shaped plate is fixedly connected to a support column, the outer surface of the support column is fixedly connected to an algae filter assembly, and the bottom of the support column is fixedly connected to an aeration disk, the bottom of the aeration disk is fixedly connected to an aeration assembly, the center of the top of the U-shaped plate is fixedly connected to a gas transmission assembly, the front and rear ends of the top of the U-shaped plate are fixedly connected to cylinders, the output ends of the two cylinders are fixedly connected to the control assembly, and one side of the top of the U-shaped plate is fixedly connected to an infusion assembly; The control assembly includes a movable disk, and both sides of the top of the movable disk are fixedly connected to the second fixing seat, the interior of the second fixing seat is fixedly connected to the third fixing rod, the outer surface of the third fixing rod is rotatably connected to the first connecting rod, the notch at the other end of the first connecting rod is connected to the algae filter assembly, eight third fixing seats are fixedly connected to the outer surface of the movable disk, the interior of the third fixing seat is fixedly connected to the fourth fixing rod, the outer surface of the fourth fixing rod is rotatably connected to the second connecting rod, and the notch at the other end of the second connecting rod is connected to the aeration assembly.

2. The multi-layer river ecological protection and restoration device according to claim 1 is characterized by: The gas delivery assembly includes an air pump, the top of the air pump is fixedly connected to an air extraction pipe, the bottom of the air pump is fixedly connected to an exhaust pipe, and the bottom of the exhaust pipe is located inside the support column.

3. The multi-layer river ecological protection and restoration device according to claim 2 is characterized by: The aeration assembly includes an air distribution plate, eight first top nozzles are fixedly connected to the circumference of the outer surface of the air distribution plate, the second top nozzles are slidably connected to the inside of the first top nozzles, the side of the second top nozzles away from the center of the air distribution plate is fixedly connected to a first fixing seat, the inside of the first fixing seat is fixedly connected to a first fixing rod, and the outer surface of the first fixing rod is connected to the notch of the second connecting rod.

4. The multi-layer river ecological protection and restoration device according to claim 3 is characterized by: The algae filtering component includes a storage box and a fixed plate. The outer surface of the bottom of the storage box is provided with a filter groove. The top of the storage box is sealed and connected with a top cover. The bottom of the top cover is fixedly connected with the filter plate.

5. The multi-layer river ecological protection and restoration device according to claim 4 is characterized by: There are two fixed plates, and the sides of the two fixed plates close to the center of the top cover are connected to the storage box. The sides of the two fixed plates away from the top cover are fixedly connected to springs, and the side of the spring away from the top cover is fixedly connected to a limiting plate. The side of the limiting plate close to the spring is fixedly connected to a movable rod, and the side of the movable rod close to the top cover is fixedly connected to a slot plate, the top of the slot plate is fixedly connected to an L-shaped plate, and the inside of the slot plate is fixedly connected to a second fixed rod, and the outer surface of the second fixed rod is connected to the slot of the first connecting rod.

6. The multi-layer river ecological protection and restoration device according to claim 5, characterized in that: The top of the top cover contacts the bottom of the L-shaped plate.

7. The multi-layer river ecological protection and restoration device according to claim 6, characterized in that: The infusion assembly includes a liquid suction pump, the bottom of which is fixedly connected to a liquid suction tube, the bottom of which passes through the U-shaped plate and extends to the outside thereof; one side of the liquid suction pump is fixedly connected to a liquid discharge tube, the bottom of which passes through the U-shaped plate and the top cover and extends to the outside thereof.

8. The multi-layer river ecological protection and restoration device according to claim 7 is characterized by: The inner diameter of the movable plate is adapted to the outer diameter of the storage box, and the length range from the top to the bottom of the movable plate is greater than the length range from the top to the bottom of the filter tank.

9. A method for repairing a river channel multi-layer ecological protection and restoration device according to any one of claims 1 to 8, characterized in that: The repair method comprises the following steps: Step 1: Placement: The user first needs to inflate the airbag using an external inflation device, then tie one side of the airbag with a rope, and finally place the device on the surface of the river, so that the liquid extraction tube is located in the algae growth layer, and the aeration plate and aeration assembly are in the anoxic layer; Step 2: Waiting for repair: The user needs to operate the cylinder so that the cylinder can drive the movable plate to move downward, thereby separating the movable plate from the filter tank. This can not only make the two first connecting rods drive the two slot plates to move inward, and then make the L-shaped plate move inward, and then make the L-shaped plate fix the top cover, but also make the eight second connecting rods drive the eight first fixing seats to move outward, and then make the eight second top nozzles move outward; Step 3: Repair stage: The user needs to operate the vacuum pump so that the vacuum pipe extracts external gas, and then transmits oxygen through the exhaust pipe through the support column to the inside of the aeration plate and the air distribution plate. The gas entering the aeration plate will be transmitted to its surroundings through the aeration plate, and the gas entering the air distribution plate will be transmitted to the top of the two through the first top nozzle and the second top nozzle. Then the user needs to operate the liquid extraction pump so that the liquid extraction pipe extracts the liquid and algae in the algae growth layer, and then discharge the algae and liquid into the storage tank through the discharge pipe. Finally, the liquid without algae is discharged back to the algae growth layer through filtration through the filter plate and filter tank; Step 4: Cleaning stage: The user needs to run the cylinder in reverse to move the movable plate to the filter tank, which can make the first connecting rod apply an outward force to the tank plate, thereby separating the L-shaped plate from the top cover, and the second connecting rod can apply an inward force to the first fixed seat, thereby retracting the second top nozzle into the inside of the first top nozzle. Then the user can apply tension to the rope to make the device float to the user's side, and then the user can apply tension to the top cover to separate the top cover and the filter plate from the storage box. Finally, the user can clean the algae on the top of the filter plate and inside the storage box.

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