A buoy type water quality monitoring device and a use method thereof

Abstract

The application discloses a buoy type water quality monitoring device and a use method, relates to the technical field of water quality monitoring, and comprises a circular plate arranged below a buoy barrel, and a water pumping cylinder for pumping water at multiple depths is arranged at the bottom of the circular plate; a second side groove is arranged in the middle section of the side wall of the water pumping cylinder, a filter screen is arranged in the second side groove, the filter screen separates the inside of the second side groove into an active gap and a containing gap, and the active gap is close to the axis of the water pumping cylinder; a processing piece is slidably arranged outside the water pumping cylinder, and a first side groove is arranged on the processing piece; when the device is put into water, the processing piece covers the second side groove, and the water pumping cylinder is closed to reach a sampling position. The buoy type water quality monitoring device is provided with the water pumping cylinder, the processing piece and a partition assembly, forms an enclosed area, rapidly absorbs and removes the particulate impurities in the containing gap, avoids the particulate impurities from entering the containing gap again, and realizes real-time cooperation and mutual non-interference of impurity treatment and water pumping sampling, so that the use efficiency of the buoy type water quality monitoring device is improved.

Description

Technical Field

[0001] This invention relates to the field of water quality monitoring technology, and in particular to a buoy-type water quality monitoring device and its usage method. Background Technology

[0002] Buoy-type water quality monitoring devices use buoys as carriers to integrate chemical analysis instruments and various water quality sensors, and combine modern technology to achieve automated, networked, and online monitoring of environmental water quality. Currently, they are mainly used in aquaculture, rivers and lakes.

[0003] Buoy-type water quality monitoring devices are generally placed directly on the water surface for water quality monitoring. Water quality monitoring is most needed in water source areas with water stratification. However, when water is stratified, the monitoring depth of the water source to be tested should be sampled in each stratum.

[0004] For example, a patent entitled "A Float-Type Water Quality Monitoring Device" (patent application number: CN202223424925.8) discloses a float-type water quality monitoring device. Through the water-drawing mechanism, after touching the bottom, the bottom plate can play an effective supporting role, which can prevent the bottom of the cleaning brush and water-drawing pipe from directly contacting the mud and sand in the water. The drive motor is a general small stepper motor, which is directly controlled by the controller inside the main body of the device. It can be forward and reversed to realize the up and down movement of the water-drawing pipe. However, in actual use, the device can only remove the attached substances on the outer wall when the water-drawing pipe is in the maximum extension state, and the removed attached substances are easy to re-attach, so the efficiency of use needs to be improved.

[0005] Therefore, it is necessary to propose a buoy-type water quality monitoring device and its usage method to solve the above problems. Summary of the Invention

[0006] The purpose of this invention is to provide a buoy-type water quality monitoring device and its usage method, in order to solve the problem that, in actual use, the device can only remove the deposits on the outer wall when the water intake pipe is in its maximum extension state, and the removed deposits are easy to re-adhere, so the usage efficiency needs to be improved.

[0007] To achieve the above objectives, the present invention provides the following technical solution: a buoy-type water quality monitoring device, comprising a circular plate disposed below a buoy cylinder, wherein a water-drawing cylinder with multiple depths is disposed at the bottom of the circular plate;

[0008] The middle section of the side wall of the water-drawing cylinder has a second side groove, and a filter screen is installed inside the second side groove. The filter screen divides the interior of the second side groove into a movable gap and a receiving gap, wherein the movable gap is close to the axis of the water-drawing cylinder.

[0009] A processing component is slidably provided on the outside of the water-drawing cylinder, and a first side groove is provided on the processing component;

[0010] When the water is placed in the water, the processing unit covers the second side tank, the water suction tube closes and reaches the sampling position, and then the processing unit is controlled to move along the axial direction of the water suction tube, the second side tank contacts the water, and the water suction tube drives the second side tank to rotate to draw water;

[0011] During cleaning, the first side channel and the second side channel are connected to each other, and the movable gap is closed by the partition component to form an enclosed area for sucking up impurities.

[0012] Preferably, the partition assembly includes an inner rod and an inner arc plate. The inner rod is fixedly connected to the bottom of the circular plate, and the inner arc plate is fixedly connected to the bottom end of the inner rod. The inner arc plate is attached to the inner wall of the water-drawing cylinder and corresponds to the second side groove.

[0013] Preferably, multiple second side grooves are provided, and the multiple second side grooves are evenly distributed around the water-drawing cylinder.

[0014] Preferably, the processing component includes an outer jacket and an outer arc plate. The outer jacket is slidably disposed outside the water-drawing cylinder, and the outer arc plate is fixedly connected to the bottom end of the outer jacket and fits against the outer wall of the water-drawing cylinder. The first side groove is formed on the concave surface of the outer arc plate.

[0015] Preferably, the circular plate is provided with a control component that drives the processing component to move up and down, and the control component includes an electric push rod.

[0016] Preferably, an elastic ring is fixedly connected to the inner wall of the second side groove, and the filter screen is fixedly connected inside the elastic ring.

[0017] Preferably, a fixed protrusion is fixedly connected to the side of the filter screen facing away from the partition assembly, and a movable protrusion is fixedly connected to the inner wall of the first side groove, wherein the movable protrusion abuts against the fixed protrusion.

[0018] Preferably, the top of the water-drawing tube is provided with a bottom tube, and a through groove is provided on the circular plate for the bottom tube to pass through. A top tube is slidably provided inside the bottom tube, and the top of the top tube extends into the interior of the buoy tube. The interior of the buoy tube is provided with a drive assembly for rotating the water-drawing tube, the bottom tube, and the top tube.

[0019] Preferably, the bottom end of the buoy cylinder is provided with a moving component that drives the circular plate to move up and down. The moving component includes a screw, a limiting slide bar, a cross plate, a second motor, and a base plate.

[0020] The present invention also discloses a method for using a buoy-type water quality monitoring device, which is applied to the above-mentioned buoy-type water quality monitoring device and includes the following operating steps:

[0021] S1. Prepare by keeping the water suction tube closed and proceeding directly to the sampling location;

[0022] S2. Sampling, water suction cylinder with rotating water suction;

[0023] S3. Clean up and create a sealed area in the gaps to suck up impurities.

[0024] The technical effects and advantages of this invention are as follows:

[0025] 1. This invention forms an enclosed area by setting up a water-drawing cylinder, a treatment component, and a partition assembly to quickly remove particulate impurities from the containment gap, preventing particulate impurities from re-entering the containment gap. Impurity treatment and water sampling can be coordinated in real time without affecting each other, thus improving the efficiency of the buoy-type water quality monitoring device.

[0026] 2. By setting movable and fixed protrusions, and utilizing the movement of the processing component and the rotation of the water suction cylinder, the filter screen swings inside the second side groove, loosening and shaking off impurities, thus ensuring the subsequent suction effect.

[0027] 3. During the rotation of the water-drawing cylinder, the outer arc plate can push and scrape stubborn impurities on the outer wall of the water-drawing cylinder into the receiving gap, where they can be directly sucked away;

[0028] 4. Set up an active gap and a containment gap, which are distributed on both sides of the filter screen to form a space for the filter screen to swing. At the same time, the containment gap allows impurities to accumulate, making it easy to clean them later.

[0029] 5. By incorporating structures such as an outer jacket and an outer arc plate, the water-drawing tube can directly reach the sampling location, preventing sampling confusion.

[0030] 6. The water-drawing cylinder drives the second side trough to rotate and draw water, which allows the water-drawing cylinder to change the direction and position of water drawing during the water drawing process. This reduces the possibility of drawing water from a fixed point for a long time and drawing in a large amount of impurities. At the same time, the rotating water drawing makes the water drawn more uniform in terms of water quality.

[0031] 7. During the rotating water intake process, under the action of centrifugal force, some relatively dense and heavy particulate impurities are thrown to the vicinity of the outer peripheral wall of the water intake cylinder, and will not accumulate in the containment gap, reducing interference with the filter screen, ensuring water intake efficiency, and after being thrown out, the outer arc plate can play a separation role.

[0032] 8. The partition components and treatment parts are supported by the inside and outside of the water tank to ensure the strength of the water tank during use. Attached Figure Description

[0033] Figure 1 This is a schematic diagram of the structure of the buoy-type water quality monitoring device of the present invention.

[0034] Figure 2 For the present invention Figure 1 Enlarged schematic diagram of the structure at point A in the middle.

[0035] Figure 3 This is a cross-sectional structural diagram of the buoy-type water quality monitoring device of the present invention.

[0036] Figure 4 For the present invention Figure 3 Enlarged schematic diagram of the structure at point B.

[0037] Figure 5 For the present invention Figure 3 Enlarged schematic diagram of the structure at point C.

[0038] Figure 6 For the present invention Figure 5 Enlarged schematic diagram of the structure at point D.

[0039] Figure 7 This is a schematic diagram of the water-drawing cylinder and the second side groove of the present invention.

[0040] Figure 8 This is a schematic diagram of the outer jacket and outer arc plate structure of the present invention.

[0041] Figure 9 This is a schematic diagram of the inner arc plate and movable gap structure of the present invention.

[0042] In the diagram: 1. Buoy tube; 2. Circular plate; 3. Water-drawing tube; 4. Processing component; 401. Outer jacket; 402. Outer arc plate; 5. First side groove; 6. Second side groove; 7. Filter screen; 8. Elastic ring; 9. Fixed protrusion; 10. Moving protrusion; 11. Conveying pipe; 12. Inner rod; 13. Inner arc plate; 14. Electric push rod; 15. Screw; 16. Limiting slide rod; 17. Horizontal plate; 18. First motor; 19. First gear; 20. Second gear; 21. Second motor; 22. Movement clearance; 23. Connecting block; 24. Bottom cylinder; 25. Top cylinder; 26. Bottom plate. Detailed Implementation

[0043] This invention provides, for example Figures 1-9 The buoy-type water quality monitoring device shown includes a buoy cylinder 1, which is the carrier of the buoy-type water quality monitoring device. It has sufficient buoyancy to enable the entire device to float stably on the water surface. The buoy is usually made of engineering plastics and other materials with strong corrosion resistance, wear resistance and UV resistance to adapt to different water environments and climate conditions.

[0044] The buoy tube 1 is equipped with water quality sensors (such as water temperature sensors, conductivity sensors, pH sensors, etc.), power supply system components (solar panels, etc.), data acquisition and transmission components (data acquisition instruments, communication modules, etc.), and auxiliary components (water pumps, material pumps, collection tanks, etc.). The water quality monitoring and its working principle are all common existing technologies, and will not be described in detail here.

[0045] Reference Figure 1 , Figure 2 As shown, in order to achieve water scooping operation, a circular plate 2 is provided below the buoy cylinder 1, and a water scooping cylinder 3 is rotatably connected to the bottom of the circular plate 2. The distance between the circular plate 2 and the buoy cylinder 1 can be adjusted by a moving component, thereby achieving water scooping at multiple depths and increasing the flexibility of use.

[0046] Reference Figure 5 , Figure 6 , Figure 7 , Figure 9 As shown, a second side groove 6 is provided in the middle section of the side wall of the water-drawing cylinder 3. Multiple second side grooves 6 are evenly distributed around the water-drawing cylinder 3. A filter screen 7 is installed inside the second side groove 6. An elastic ring 8 is fixedly connected to the inner wall of the second side groove 6, and the filter screen 7 is fixedly connected inside the elastic ring 8. The elastic ring 8 is made of rubber, and the filter screen 7 is made of stainless steel. The elastic ring 8 allows the filter screen 7 to swing inside the second side groove 6, facilitating the shaking off of impurities.

[0047] Reference Figure 7 , Figure 9 As shown, the thickness of the filter screen 7 is less than the thickness of the second side groove 6. The filter screen 7 divides the interior of the second side groove 6 into a movable gap 22 and a receiving gap for accommodating impurities. The movable gap 22 is located on the side of the filter screen 7 closest to the axis of the water-drawing cylinder 3, and the receiving gap is located on the side of the filter screen 7 opposite to the axis of the water-drawing cylinder 3. When water is drawn and sampled through the water-drawing cylinder 3 and the second side groove 6, the filter screen 7 intercepts particulate impurities such as mud and sand. These particulate impurities easily adhere to the filter screen 7 due to suction, i.e., they accumulate in the receiving gap, making them easy to clean later. The movable gap 22 and the receiving gap are distributed on both sides of the filter screen 7, forming a space for the filter screen 7 to swing.

[0048] Reference Figure 2 , Figure 5 , Figure 7 As shown, considering that particulate impurities accumulate in the containment gap, affecting the efficiency of water sampling, if cleaning is done by scraping, the particulate impurities will re-enter the containment gap, making effective treatment difficult. At the same time, water bodies sometimes exhibit stratification, with significant differences in the physicochemical properties between different water layers. The water collection cylinder 3 is equipped with a second side groove 6, etc. During the process of extending downward from the water surface, water along the moving path of the water collection cylinder 3 will enter its interior through the second side groove 6, causing sampling chaos and affecting the accurate measurement of water quality at a certain depth underwater, leading to deviations in measurement results. To achieve efficient monitoring, a processing component 4 is slidably installed on the outside of the water collection cylinder 3. The processing component 4 can be made of, but is not limited to, hard rubber material, and its inner wall can be fitted with rubber pads, etc., to reduce wear and improve sealing.

[0049] The processing component 4 includes an outer jacket 401 and an outer arc plate 402. The outer jacket 401 is slidably disposed outside the water-drawing cylinder 3. The outer arc plate 402 is fixedly connected to the bottom end of the outer jacket 401 and is attached to the outer wall of the water-drawing cylinder 3. A first side groove 5 is provided on the concave surface of the outer arc plate 402, and the first side groove 5 can completely cover the second side groove 6, which facilitates the suction of particles inside the second side groove 6.

[0050] Reference Figure 4 , Figure 5 As shown, a connecting block 23 is fixedly connected to the inner wall of the top of the water-drawing cylinder 3, and a bottom cylinder 24 is fixedly connected to the connecting block 23. The water-drawing cylinder 3, the connecting block 23, and the bottom cylinder 24 can rotate synchronously. A through groove is provided on the circular plate 2 for the bottom cylinder 24 to pass through. A sealing ring is provided on the inner wall of the through groove to reduce the wear of the bottom cylinder 24 during rotation and improve the sealing performance. A top cylinder 25 is slidably arranged inside the bottom cylinder 24, and the top of the top cylinder 25 extends into the interior of the float cylinder 1. The top of the top cylinder 25 is connected to the water pump inlet of the auxiliary component (not shown in the figure) through a rotary joint. After suction, the water sample is monitored by a water quality sensor. Water suction is a common existing technology and will not be described in detail here.

[0051] The inner wall of the bottom cylinder 24 and the bottom section of the top cylinder 25 are both rectangular. The top cylinder 25 can slide inside the bottom cylinder 24, and the top cylinder 25 and the bottom cylinder 24 will rotate synchronously.

[0052] Reference Figure 4 As shown, the buoy cylinder 1 is internally equipped with a drive assembly for rotating the water intake cylinder 3, the bottom cylinder 24, and the top cylinder 25. The drive assembly includes a first motor 18, a first gear 19, and a second gear 20. The first motor 18 is fixedly connected inside the buoy cylinder 1, the first gear 19 is fixedly connected to the drive shaft of the first motor 18, and the second gear 20 is fixedly connected to the top cylinder 25. The first gear 19 and the second gear 20 are meshed together. The first motor 18 drives the first gear 19 to rotate. Because the first gear 19 and the second gear 20 are meshed together, the second gear 20 drives the top cylinder 25 to rotate, and the water intake cylinder 3, the connecting block 23, and the bottom cylinder 24 can rotate synchronously.

[0053] As the water-drawing tube 3 extends downwards from the water surface, the outer sleeve 401 aligns with the second side groove 6, completely closing multiple second side grooves 6 and reaching the sampling position. Then, the outer sleeve 401 is moved so that the outer arc plate 402 aligns with the second side groove 6, exposing most of the second side grooves 6. Water at the sampling position can enter the interior of the water-drawing tube 3 through the second side grooves 6, thus preventing sampling confusion.

[0054] When switching sampling positions, when the outer casing 401 corresponds to the position of the second side groove 6, the multiple second side grooves 6 are completely closed, and the water inside the water-drawing cylinder 3 is completely emptied. After reaching the new sampling position, the outer arc plate 402 corresponds to the position of the second side groove 6, and sampling continues.

[0055] By setting up structures such as the outer jacket 401 and the outer arc plate 402, the water-drawing cylinder 3 can directly reach the sampling position, preventing sampling confusion.

[0056] Reference Figure 5 As shown, a control assembly for moving the processing component 4 up and down is provided on the circular plate 2. The control assembly includes an electric push rod 14, which is waterproofed, for example, by having a waterproof cover, so it is not affected by water. The electric push rod 14 is fixedly connected to the circular plate 2, and the processing component 4 is fixedly connected to the telescopic end of the electric push rod 14. When the telescopic end of the electric push rod 14 extends, it causes the outer sleeve 401 to move downward, and the outer sleeve 401 corresponds to the position of the second side groove 6; when the telescopic end of the electric push rod 14 retracts, it causes the outer sleeve 401 to move upward, and the outer arc plate 402 corresponds to the position of the second side groove 6.

[0057] Reference Figure 4 , Figure 5 As shown, in order to process particulate impurities, a conveying pipe 11 is fixedly connected to the outer wall of the outer arc plate 402. The conveying pipe 11 uses a telescopic flexible hose, and the top end of the conveying pipe 11 extends into the interior of the buoy cylinder 1 and connects to the material pump, collection box, etc. of the auxiliary components. It can suck up and collect particulate impurities, and the operators can periodically process the collected impurities in a centralized manner.

[0058] In actual use, the water-drawing cylinder 3 drives the second side groove 6 to rotate and draw water, so that the water-drawing cylinder 3 can change the direction and position of water drawing during the water drawing process, which can reduce the possibility of drawing water for a long time at a fixed point and sucking in a large amount of impurities.

[0059] At the same time, rotating water pumping makes the water drawn more uniform in terms of quality. In contrast, stationary water pumping may only draw water from a local area, and its water quality may not represent the average quality of the entire water body.

[0060] In addition, the water-drawing cylinder 3 drives the second side trough 6 to rotate and draw water. If it has a certain rotation speed, under the action of centrifugal force, some relatively dense and heavy particulate impurities are thrown to the vicinity of the outer peripheral wall of the water-drawing cylinder 3, and will not accumulate in the receiving gap, reducing interference with the filter screen 7, ensuring water-drawing efficiency. After being thrown out, the outer arc plate 402 can play a separation role, further separating the relatively dense and heavy particulate impurities from the water-drawing cylinder 3.

[0061] Reference Figure 5 , Figure 6 , Figure 9 As shown, in order to clean the particulate impurities accumulated in the accommodating gap, a partition assembly is provided inside the water-drawing cylinder 3. The partition assembly includes an inner rod 12 and an inner arc plate 13. The inner rod 12 is fixedly connected to the bottom of the circular plate 2, and the inner arc plate 13 is fixedly connected to the bottom end of the inner rod 12. The inner arc plate 13 is attached to the inner wall of the water-drawing cylinder 3 and corresponds to the second side groove 6. The inner arc plate 13 can cover the second side groove 6. The inner rod 12 can be made of, but is not limited to, high-strength stainless steel, and the inner arc plate 13 can be made of, but is not limited to, hard rubber. The side of the inner arc plate 13 that is attached to the inner wall of the water-drawing cylinder 3 is fitted with a rubber pad to reduce wear and improve sealing.

[0062] The partition components and the treatment components 4 are supported by the inside and outside of the water-drawing cylinder 3 to ensure the strength of the water-drawing cylinder 3 during use.

[0063] During water sampling, if the water flow at the outlet of the auxiliary component's pump decreases significantly, a flow sensor can be installed to monitor and control the drive component to stop operating. One of the second side channels 6 is connected to the first side channel 5. At this time, the partition component closes the movable gap 22 from inside the water-drawing cylinder 3 to form an enclosed area. The delivery pipe 11 quickly removes the particulate impurities in the gap. Due to the cooperation of the partition component, the removal is more thorough, and the suction will not interfere with the external water body. Meanwhile, the second side channels 6 in other positions remain exposed and do not affect water sampling. The removal of impurities and water sampling do not affect each other.

[0064] Next, the control drive component continues to operate, and the next second side groove 6 is connected to the first side groove 5, continuing to quickly remove particulate impurities in its corresponding receiving gap, thereby removing impurities from all receiving gaps one by one to prevent them from re-entering the receiving gaps.

[0065] In addition, during the rotation of the water-drawing cylinder 3, the outer arc plate 402 can push and scrape stubborn impurities on the outer wall surface of the water-drawing cylinder 3 into the receiving gap, where they can be directly sucked away.

[0066] This invention, by setting up a water-drawing cylinder 3, a treatment component 4, and a partition assembly, forms an enclosed area to quickly remove particulate impurities from the containment gap, preventing particulate impurities from re-entering the containment gap. Impurity treatment and water sampling can be coordinated in real time without affecting each other, improving the efficiency of the buoy-type water quality monitoring device.

[0067] Reference Figure 6 , Figure 8 , Figure 9As shown, to ensure suction efficiency, a fixed protrusion 9 is fixedly connected to the side of the filter screen 7 facing away from the partition assembly, and a movable protrusion 10 is fixedly connected to the inner wall of the first side groove 5. The movable protrusion 10 abuts against the fixed protrusion 9. The fixed protrusion 9 can be made of, but is not limited to, stainless steel, and the movable protrusion 10 can be made of a metal elastic material. When the first side groove 5 and the second side groove 6 are misaligned, the movable protrusion 10 can be bent and stored inside the first side groove 5 when squeezed by the outer wall of the water suction cylinder 3 (see reference). Figure 6 ).

[0068] When the drive assembly is paused and one of the second side grooves 6 is connected to the first side groove 5, the movable protrusion 10 abuts against the fixed protrusion 9, controlling the water-drawing cylinder 3 to rotate in both directions several times. When the fixed protrusion 9 contacts the movable protrusion 10, it is squeezed by the movable protrusion 10, and the fixed protrusion 9 drives the filter screen 7 to swing towards the movable gap 22. When the fixed protrusion 9 and the movable protrusion 10 are misaligned, the filter screen 7 swings away from the movable gap 22 due to the reset elastic force of the elastic ring 8, thereby causing the filter screen 7 to swing inside the second side groove 6, and the impurities are loosened and shaken off.

[0069] When the water-drawing cylinder 3 is rotated slightly in both directions, the first side trough 5 can maintain its coverage over the second side trough 6.

[0070] By setting the movable protrusion 10 and the fixed protrusion 9, and by utilizing the movement of the processing component 4 and the rotation of the water suction cylinder 3, the filter screen 7 swings inside the second side groove 6, loosening and shaking off impurities, thus ensuring the subsequent suction effect.

[0071] Reference Figure 1 , Figure 3 , Figure 4 , Figure 7 As shown, in a specific configuration, the moving assembly includes a screw 15, a limiting slide rod 16, a horizontal plate 17, a second motor 21, and a base plate 26. There are two horizontal plates 17. The screw 15 is rotatably connected to the bottom end of the buoy cylinder 1, and the limiting slide rod 16 is fixedly connected to the bottom end of the buoy cylinder 1. The base plate 26 is located below the circular plate 2. The bottom ends of the screw 15 and the limiting slide rod 16 are both fixedly connected to the base plate 26. The two horizontal plates 17 are respectively fixedly connected to the two sides of the circular plate 2. One horizontal plate 17 has a through hole for the limiting slide rod 16 to pass through, and the other horizontal plate 17 has a threaded hole that mates with the screw 15. The second motor 21 is fixedly installed inside the buoy cylinder 1, and the screw 15 is fixedly connected to the drive shaft of the second motor 21.

[0072] Specifically, the second motor 21 drives the screw 15 to rotate, and with the cooperation of the limiting slide rod 16 and the two horizontal plates 17, it drives the circular plate 2 to move up and down to achieve multi-depth water intake.

[0073] The present invention also discloses a method for using a buoy-type water quality monitoring device, which is applied to the above-mentioned buoy-type water quality monitoring device and includes the following operating steps:

[0074] S1. Prepare, keep the water suction tube 3 closed and go directly to the sampling position;

[0075] S2, Sampling, water-drawing cylinder 3 rotating water-drawing;

[0076] S3. Clean up and create a sealed area in the gaps to suck up impurities.

Claims

1. A buoy-type water quality monitoring device, comprising a circular plate (2) disposed below a buoy cylinder (1), characterized in that: The bottom of the circular plate (2) is provided with a water-drawing cylinder (3) with multiple depths for drawing water; The middle section of the side wall of the water-drawing cylinder (3) has a second side groove (6), and a filter screen (7) is provided inside the second side groove (6). The filter screen (7) divides the interior of the second side groove (6) into an movable gap (22) and a receiving gap, wherein the movable gap (22) is close to the axis of the water-drawing cylinder (3). The water-drawing cylinder (3) is slidably provided with a processing component (4), and a first side groove (5) is provided on the processing component (4); When the water is placed in the water, the processing unit (4) covers the second side trough (6), the water-drawing tube (3) closes and reaches the sampling position, and then the processing unit (4) is controlled to move along the axial direction of the water-drawing tube (3), the second side trough (6) contacts the water, and the water-drawing tube (3) drives the second side trough (6) to rotate and draw water. During cleaning, the first side groove (5) and the second side groove (6) are connected to each other, and the movable gap (22) is closed by the partition component to form an enclosed area for sucking up impurities; The partition assembly includes an inner rod (12) and an inner arc plate (13). The inner rod (12) is fixedly connected to the bottom of the circular plate (2), and the inner arc plate (13) is fixedly connected to the bottom end of the inner rod (12). The inner arc plate (13) is attached to the inner wall of the water-drawing cylinder (3) and corresponds to the second side groove (6). The second side groove (6) is provided in multiple ways, and the multiple second side grooves (6) are evenly distributed around the water-drawing cylinder (3); The processing component (4) includes an outer sleeve (401) and an outer arc plate (402). The outer sleeve (401) is slidably disposed outside the water-drawing cylinder (3). The outer arc plate (402) is fixedly connected to the bottom end of the outer sleeve (401) and the outer arc plate (402) is attached to the outer wall of the water-drawing cylinder (3). The first side groove (5) is opened on the concave surface of the outer arc plate (402). An elastic ring (8) is fixedly connected to the inner wall of the second side groove (6), and the filter screen (7) is fixedly connected inside the elastic ring (8); The filter screen (7) has a fixed protrusion (9) fixedly connected to the side facing away from the partition assembly, and a movable protrusion (10) is fixedly connected to the inner wall of the first side groove (5), and the movable protrusion (10) abuts against the fixed protrusion (9).

2. The buoy-type water quality monitoring device according to claim 1, characterized in that: The circular plate (2) is provided with a control component that drives the processing component (4) to move up and down. The control component includes an electric push rod (14).

3. The buoy-type water quality monitoring device according to claim 1, characterized in that: The top of the water-drawing tube (3) is provided with a bottom tube (24), and a through groove is provided on the circular plate (2) for the bottom tube (24) to pass through. A top tube (25) is slidably provided inside the bottom tube (24), and the top of the top tube (25) extends into the interior of the buoy tube (1). The interior of the buoy tube (1) is provided with a drive assembly for rotating the water-drawing tube (3), the bottom tube (24), and the top tube (25).

4. The buoy-type water quality monitoring device according to claim 1, characterized in that: The bottom end of the buoy tube (1) is provided with a moving component that drives the circular plate (2) to move up and down. The moving component includes a screw (15), a limiting slide bar (16), a horizontal plate (17), a second motor (21), and a bottom plate (26).

5. A method of using a buoy-type water quality monitoring device, characterized in that: The buoy-type water quality monitoring device as described in any one of claims 1 to 4 further includes the following operating steps: S1. Prepare, keep the water-drawing tube (3) closed and go straight to the sampling position; S2, Sampling, water-drawing cylinder (3) rotating water-drawing; S3. Clean up and create a sealed area in the gaps to suck up impurities.

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