Float type water quality monitoring device and use method

Abstract

The invention discloses a buoy-type water quality monitoring device and a use method, and relates to the technical field of water quality monitoring, the buoy-type water quality monitoring device comprises a circular plate arranged below a buoy cylinder, and a water drawing cylinder for drawing water at multiple depths is arranged at the bottom of the circular plate; a second side groove is formed in the middle section of the side wall of the water drawing barrel, a filter screen is arranged in the second side groove and divides the interior of the second side groove into a movable gap and a containing gap, and the movable gap is close to the axis of the water drawing barrel; a treatment part is arranged outside the water drawing cylinder in a sliding manner, and a first side groove is formed in the treatment part; when being put into a water body, the treatment piece covers the second side groove, and the water drawing barrel is closed to reach a sampling position. According to the float-type water quality monitoring device, by arranging the water drawing cylinder, the treatment part, the partition assembly and other structures, a surrounding and shielding area is formed to quickly absorb and remove particle impurities in the containing gap, the particle impurities are prevented from entering the containing gap again, impurity treatment and water drawing sampling can be matched in real time and do not affect each other, and the detection accuracy is improved. The use efficiency of the float type water quality monitoring device is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of water quality monitoring, in particular to a buoy type water quality monitoring device and a use method thereof. BACKGROUND

[0002] The buoy type water quality monitoring device is an effective means for realizing environmental water quality monitoring automation, networking and online monitoring by taking a buoy as a carrier, integrating chemical analysis instruments and various water quality sensors and combining modern technologies. At present, the buoy type water quality monitoring device is mainly applied to the fields of aquaculture, rivers and lakes and the like.

[0003] The buoy type water quality monitoring device is generally directly placed on the water surface to monitor water quality. For water source areas with stratified water bodies, water quality monitoring is most needed. However, the monitoring depth of the water source to be detected should be stratified and sampled.

[0004] In the patent with the name of a buoy type water quality monitoring device (patent application number CN202223424925.8), a buoy type water quality monitoring device is disclosed. After the water pumping mechanism is set, the bottom plate can effectively support the function after touching the bottom. The bottom end of the cleaning brush and the water pumping pipe can be avoided from directly contacting with the sediment in the water. The transmission motor adopts a general small stepping motor, which is directly controlled by the controller inside the device main body and can be forward and reverse rotated to realize the up and down movement of the water pumping pipe. However, the device can only remove the attachments on the outer wall when the water pumping pipe is in the maximum elongation state in actual use. The removed attachments are easy to be attached again. The use efficiency needs to be improved.

[0005] Therefore, it is necessary to propose a buoy type water quality monitoring device and a use method to solve the above problems. SUMMARY

[0006] The present application aims to provide a buoy type water quality monitoring device and a use method to solve the problem that the device can only remove the attachments on the outer wall when the water pumping pipe is in the maximum elongation state in actual use. The removed attachments are easy to be attached again. The use efficiency needs to be improved.

[0007] To achieve the above-mentioned purpose, the present application provides the following technical scheme: a buoy type water quality monitoring device, comprising a circular plate arranged below a buoy barrel, wherein the bottom of the circular plate is provided with a water pumping cylinder for pumping water at multiple depths; The middle section of the side wall of the water pumping cylinder has a second side groove. 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. The active gap is close to the axis of the water pumping cylinder. A treatment piece is slidably arranged outside the water pumping cylinder. The treatment piece is provided with a first side groove. When put into the water body, the treatment piece covers the second side groove, the water suction cylinder is closed up to the sampling position, then the treatment piece is controlled to move axially along the water suction cylinder, the second side groove is in contact with the water body, and the water suction cylinder drives the second side groove to rotate to suck water; When cleaning, the first side groove is in communication with the second side groove, the movable gap is closed through the partition assembly, and a shielding area is formed to suck impurities.

[0008] Preferably, the partition assembly comprises an inner rod and an inner arc plate, the inner rod is fixedly connected to the bottom of the circular plate, the inner arc plate is fixedly connected to the bottom end of the inner rod, and the inner arc plate is attached to the inner wall of the water suction cylinder above, and the inner arc plate corresponds to the second side groove.

[0009] Preferably, a plurality of second side grooves are uniformly distributed around the water suction cylinder.

[0010] Preferably, the treatment piece comprises an outer sleeve and an outer arc plate, the outer sleeve is slidingly arranged outside the water suction cylinder, the outer arc plate is fixedly connected to the bottom end of the outer sleeve, and the outer arc plate is attached to the outer wall of the water suction cylinder, and the first side groove is arranged on the recessed surface of the outer arc plate.

[0011] Preferably, the circular plate is provided with a control assembly for driving the treatment piece to move up and down, and the control assembly comprises an electric push rod.

[0012] Preferably, the inner wall of the second side groove is fixedly connected with an elastic ring, and the filter screen is fixedly connected inside the elastic ring.

[0013] Preferably, the side of the filter screen away from the partition assembly is fixedly connected with a fixed protrusion, the inner wall of the first side groove is fixedly connected with a moving protrusion, and the moving protrusion is in abutting cooperation with the fixed protrusion.

[0014] Preferably, the top end of the water suction cylinder is provided with a bottom cylinder, a through slot is arranged on the circular plate for the bottom cylinder to pass through, the inside of the bottom cylinder is slidingly provided with a top cylinder, the top end of the top cylinder extends into the inside of the float cylinder, and the inside of the float cylinder is provided with a driving assembly for driving the water suction cylinder, the bottom cylinder and the top cylinder to rotate.

[0015] Preferably, the bottom end of the float cylinder is provided with a moving assembly for driving the circular plate to move up and down, and the moving assembly comprises a screw rod, a limiting slide rod, a transverse plate, a second motor and a bottom plate.

[0016] The application also discloses a use method of the float type water quality monitoring device, which is applied to the float type water quality monitoring device and comprises the following operation steps. S1, preparation, the water suction cylinder is kept in a closed state up to the sampling position; S2, sampling, the water suction cylinder rotates to suck water; S3, cleaning, a shielding area is formed at the containing gap to suck impurities.

[0017] The technical effects and advantages of the present application are as follows: 1、The present application forms a shielding area by setting the water scooping cylinder, treatment piece and partition assembly, etc., to quickly remove the particulate impurities in the containing gap, avoid the particulate impurities from entering the containing gap again, and improve the use efficiency of the buoy type water quality monitoring device. 2、The movable protrusion and fixed protrusion are set, and the movement of the treatment piece and the rotation of the water scooping cylinder are cooperated to make the filter screen swing inside the second side groove, loosen and shake off the impurities, and ensure the effect of subsequent suction. 3、During the rotation of the water scooping cylinder, the outer arc plate can push and scrape the stubborn impurities on the outer wall surface of the water scooping cylinder into the containing gap and be directly sucked off. 4、The movable gap and containing gap are set, and the movable gap and containing gap are distributed on both sides of the filter screen to form a space for the filter screen to swing, and the containing gap is used to accumulate impurities for subsequent concentrated cleaning. 5、The outer sleeve and outer arc plate are set to make the water scooping cylinder reach the sampling position directly to prevent causing sampling confusion. 6、The water scooping cylinder drives the second side groove to rotate to scoop water, so that the water scooping cylinder can change the direction and position of water scooping during water scooping, which can reduce the possibility of sucking a large amount of impurities at a fixed point for a long time, and the rotating water scooping makes the scooped water more uniform in water quality. 7、During the rotating water scooping, under the action of centrifugal force, some particulate impurities with relatively large density and heavy mass are thrown to the vicinity of the outer peripheral wall of the water scooping cylinder, and will not be accumulated in the containing gap, which reduces the interference to the filter screen, ensures the water scooping efficiency, and after being thrown out, the outer arc plate can play a separating role. 8、The partition assembly and the treatment piece are cooperated to be supported by the water scooping cylinder inside and outside, which ensures the strength of the water scooping cylinder in use. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is a structural schematic view of the buoy type water quality monitoring device of the present application.

[0019] Figure 2 It is an enlarged schematic view of the structure at A in the present application. Figure 1

[0020] Figure 3 It is a sectional structural schematic view of the buoy type water quality monitoring device of the present application.

[0021] Figure 4 It is an enlarged schematic view of the structure at B in the present application. Figure 3

[0022] Figure 5 It is an enlarged schematic view of the structure at B in the present application. Figure 3 ​​Structure schematic view of the structure at C.

[0023] Figure 6 For the invention Figure 5 Structure schematic view of the structure at D.

[0024] Figure 7 Structure schematic view of the water suction cylinder and the second side groove of the invention.

[0025] Figure 8 Structure schematic view of the outer sleeve and the outer arc plate of the invention.

[0026] Figure 9 Structure schematic view of the inner arc plate and the movable gap of the invention.

[0027] In the figure: 1, buoy cylinder; 2, round plate; 3, water suction cylinder; 4, processing piece; 401, outer sleeve; 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 rod; 16, limiting slide rod; 17, cross plate; 18, first motor; 19, first gear; 20, second gear; 21, second motor; 22, movable gap; 23, connecting block; 24, bottom cylinder; 25, top cylinder; 26, bottom plate. DETAILED DESCRIPTION

[0028] The invention provides a buoy type water quality monitoring device as shown in Figures 1-9 The buoy cylinder 1 is the carrier of the buoy type water quality monitoring device, which has sufficient buoyancy to enable the entire device to stably float on the water surface. The buoy is usually made of materials such as engineering plastics with strong corrosion resistance, wear resistance, and ultraviolet resistance to adapt to different water environments and climate conditions.

[0029] 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 boxes, etc.) are provided at the buoy cylinder 1. The water quality monitoring and its working principle are common existing technologies and will not be described here.

[0030] Referring to Figure 1 , Figure 2 To achieve water suction operation, the round plate 2 is provided below the buoy cylinder 1, the bottom of the round plate 2 is rotatably connected with the water suction cylinder 3, and the distance between the round plate 2 and the buoy cylinder 1 can be adjusted through the moving assembly, thereby realizing water suction at multiple depths and increasing the flexibility of use.

[0031] Referring to Figure 5 , Figure 6 , Figure 7 ,Figure 9 As shown in FIG. 1, the middle section of the sidewall of the water scooping cylinder 3 is provided with a second side groove 6, and a plurality of second side grooves 6 are uniformly distributed around the water scooping cylinder 3. The inside of the second side groove 6 is provided with a filter screen 7, and the inner wall of the second side groove 6 is fixedly connected with an elastic ring 8. The filter screen 7 is fixedly connected inside the elastic ring 8. The elastic ring 8 is made of rubber material, and the filter screen 7 is made of stainless steel material. The elastic ring 8 is arranged to enable the filter screen 7 to swing inside the second side groove 6, thereby facilitating the shaking off of impurities.

[0032] Referring to Figure 7 , Figure 9 As shown in FIG. 1, the thickness of the filter screen 7 is less than the thickness of the second side groove 6. The filter screen 7 divides the inside of the second side groove 6 into an active gap 22 and a holding gap for holding impurities. The active gap 22 is located on the side of the filter screen 7 close to the axis of the water scooping cylinder 3, and the holding gap is located on the side of the filter screen 7 away from the axis of the water scooping cylinder 3. When water sampling is performed through the water scooping cylinder 3 and the second side groove 6, the filter screen 7 intercepts particulate impurities such as silt, and the particulate impurities are easily attached to the filter screen 7 due to suction, i.e., accumulated in the holding gap, thereby facilitating subsequent concentrated cleaning. The active gap 22 and the holding gap are distributed on both sides of the filter screen 7, thereby forming a space for swinging of the filter screen 7.

[0033] Referring to Figure 2 , Figure 5 , Figure 7 As shown in FIG. 1, considering that the particulate impurities are accumulated in the holding gap, affecting the efficiency of water sampling, if a scraping method is used for cleaning, the particulate impurities will again enter the holding gap, making it difficult to effectively handle. At the same time, sometimes the water body appears to be stratified, and the physical and chemical properties between different water layers are obviously different. The water scooping cylinder 3 is provided with the second side groove 6 and the like. During the process of extending downward from the water surface, the water body on the moving path of the water scooping cylinder 3 will enter the inside of the second side groove 6 from the second side groove 6, causing sampling confusion, affecting accurate measurement of water quality at a certain depth underwater, and leading to deviation of the measurement result. In order to achieve efficient monitoring, a processing piece 4 is slidingly arranged outside the water scooping cylinder 3. The processing piece 4 can be made of, but is not limited to, hard rubber material. The inner wall of the processing piece 4 can be matched with a rubber pad or the like to reduce wear and improve sealing performance.

[0034] The processing piece 4 includes an outer sleeve 401 and an outer arc plate 402. The outer sleeve 401 is slidingly arranged outside the water scooping cylinder 3, and the outer arc plate 402 is fixedly connected to the bottom end of the outer sleeve 401 and is attached to the outer wall of the water scooping cylinder 3. The concave surface of the outer arc plate 402 is provided with a first side groove 5, and the first side groove 5 can completely cover the second side groove 6, thereby facilitating suction of particulates inside the second side groove 6.

[0035] Referring to Figure 4 , Figure 5As shown, the inner wall of the top end of the water scooping cylinder 3 is fixedly connected with a connecting block 23, and the connecting block 23 is fixedly connected with a bottom cylinder 24. The water scooping cylinder 3, the connecting block 23 and the bottom cylinder 24 can rotate synchronously. A through slot is formed in the circular plate 2 for the bottom cylinder 24 to pass through. A sealing ring is arranged at the inner wall of the through slot to reduce the abrasion of the bottom cylinder 24 in rotation and improve the sealing performance. A top cylinder 25 is slidably arranged in the bottom cylinder 24, and the top end of the top cylinder 25 extends into the inner part of the buoy cylinder 1. The top end of the top cylinder 25 is connected with the water inlet end of the water pump of the auxiliary component through a rotary joint (not shown in the figure). After suction, the water sample is monitored by the water quality sensor. The water suction is a common technology, and thus will not be described here.

[0036] The inner wall of the bottom cylinder 24 and the bottom end of the top cylinder 25 are both in a rectangular shape. The top cylinder 25 can slide in the bottom cylinder 24, and the top cylinder 25 and the bottom cylinder 24 rotate synchronously.

[0037] Referring to Figure 4 As shown, the inner part of the buoy cylinder 1 is provided with a driving assembly for driving the water scooping cylinder 3, the bottom cylinder 24 and the top cylinder 25 to rotate. The driving assembly includes a first motor 18, a first gear 19 and a second gear 20. The first motor 18 is fixedly connected to the inner part of the buoy cylinder 1. The first gear 19 is fixedly connected to the driving shaft of the first motor 18. The second gear 20 is fixedly connected to the top cylinder 25. The first gear 19 and the second gear 20 are meshingly connected. The first motor 18 drives the first gear 19 to rotate. Since the first gear 19 and the second gear 20 are meshingly connected, the second gear 20 drives the top cylinder 25 to rotate. The water scooping cylinder 3, the connecting block 23 and the bottom cylinder 24 can rotate synchronously.

[0038] During the process that the water scooping cylinder 3 extends downward from the water surface, the outer sleeve 401 corresponds to the positions of the second side grooves 6. The outer sleeve 401 completely closes the plurality of second side grooves 6, and reaches the sampling position. Then, the outer sleeve 401 is moved so that the outer arc plate 402 corresponds to the positions of the second side grooves 6. Most of the second side grooves 6 are exposed. The water body at the sampling position can enter the inner part of the water scooping cylinder 3 from the second side grooves 6, thereby preventing the sampling from being chaotic.

[0039] When the sampling position is switched, the outer sleeve 401 corresponds to the positions of the second side grooves 6, which completely closes the plurality of second side grooves 6, and completely evacuates the water body in the water scooping cylinder 3. After reaching the new sampling position, the outer arc plate 402 corresponds to the positions of the second side grooves 6, and the sampling is continued.

[0040] By arranging the outer sleeve 401 and the outer arc plate 402, the water scooping cylinder 3 can reach the sampling position, thereby preventing the sampling from being chaotic.

[0041] Referring to Figure 5As shown in the circular plate 2 is provided with a control assembly driving the processing piece 4 up and down, the control assembly includes an electric push rod 14, the electric push rod 14 is waterproof, such as: set waterproof cover, not affected by the water body. The electric push rod 14 is fixedly connected on the circular plate 2, and the processing piece 4 is fixedly connected on the telescopic end of the electric push rod 14. When the telescopic end of the electric push rod 14 is stretched out, the outer sleeve 401 is driven 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 is retracted, the outer sleeve 401 is driven to move upward, and the outer arc plate 402 corresponds to the position of the second side groove 6.

[0042] Referring to Figure 4 , Figure 5 As shown in the outer wall of the outer arc plate 402 is fixedly connected with a conveying pipe 11, the conveying pipe 11 uses a telescopic hose, the top end of the conveying pipe 11 extends to the inside of the buoy cylinder 1, and is connected with the material pump, the collecting box and the like of the auxiliary component, so that the granular impurities can be sucked and collected, and the collected impurities can be centrally treated by the operator regularly.

[0043] In actual use, the water suction cylinder 3 drives the second side groove 6 to rotate to suck water, so that the water suction cylinder 3 can change the direction and position of water suction during water suction, and the possibility of sucking a large amount of impurities at a fixed point for a long time can be reduced.

[0044] At the same time, the rotating water suction makes the sucked water more uniform in water quality. In comparison: the fixed water suction mode may only come from a local area, and the water quality may not represent the average quality of the whole water body.

[0045] In addition, the water suction cylinder 3 drives the second side groove 6 to rotate to suck water, and if it has a certain rotating speed, under the action of centrifugal force, some granular impurities with relatively large density and heavy quality are thrown to the vicinity of the outer peripheral wall of the water suction cylinder 3, and are not accumulated in the containing gap, reducing the interference to the filter screen 7, ensuring the water suction efficiency, and after being thrown out, the outer arc plate 402 can play a separating role to further separate the granular impurities with relatively large density and heavy quality from the water suction cylinder 3.

[0046] Referring to Figure 5 , Figure 6 , Figure 9As shown in the middle, in order to clean the accumulated particle impurities in the containing gap, a partition assembly is arranged in the inside of the water scooping cylinder 3, the partition assembly comprises 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, the inner arc plate 13 is fixedly connected to the bottom end of the inner rod 12, and the inner arc plate 13 is above the inner wall of the water scooping cylinder 3, the inner arc plate 13 corresponds to the second side groove 6, the inner arc plate 13 can cover the second side groove 6, the inner rod 12 can use but is not limited to high-strength stainless steel material, and the inner arc plate 13 can use but is not limited to hard rubber material, and the side of the inner arc plate 13 which is attached to the inner wall of the water scooping cylinder 3 is matched with a rubber pad or the like to reduce wear and improve sealing performance.

[0047] The partition assembly and the processing piece 4 are supported by the water scooping cylinder 3 inside and outside to ensure the strength of the water scooping cylinder 3.

[0048] When water sampling is performed, if the water flow at the water outlet end of the water pump of the auxiliary component is obviously reduced, a flow sensor can be arranged to monitor and control the driving assembly to stop running, and one of the second side grooves 6 is in communication with the first side groove 5, at this time, the partition assembly closes the movable gap 22 in the water scooping cylinder 3 to form an enclosed area, and the particle impurities in the containing gap are quickly sucked out by the conveying pipe 11, and due to the cooperation of the partition assembly, the suction is more thorough, and the suction does not interfere with the external water body, and at the same time, the second side grooves 6 at other positions are still exposed, which does not affect water sampling, and the impurity suction and water sampling do not affect each other.

[0049] Then, the control driving assembly continues to run, the next second side groove 6 is in communication with the first side groove 5, and the particle impurities in the corresponding containing gap are continuously sucked out, and then all the impurities in the containing gap are sucked out one by one to avoid re-entering the containing gap.

[0050] In addition, during the rotation of the water scooping cylinder 3, the stubborn impurities on the outer wall surface of the water scooping cylinder 3 are pushed and scraped to the containing gap by the outer arc plate 402 and are directly sucked out.

[0051] The present application forms an enclosed area by arranging the water scooping cylinder 3, the processing piece 4 and the partition assembly and the like to quickly suck out the particle impurities in the containing gap, avoids the particle impurities from re-entering the containing gap, and improves the use efficiency of the buoy type water quality monitoring device.

[0052] Reference Figure 6 , Figure 8 , Figure 9As shown in the middle, in order to ensure the efficiency of suction, the fixed protrusion 9 is fixedly connected to the side of the filter screen 7 away from the partition assembly, the inner wall of the first side groove 5 is fixedly connected with the moving protrusion 10, the moving protrusion 10 is in abutting cooperation with the fixed protrusion 9, the fixed protrusion 9 can be made of stainless steel, and the moving protrusion 10 can be made of metal elastic material, when the first side groove 5 is staggered with the second side groove 6, the moving protrusion 10 can be accommodated in the first side groove 5 in a curved shape when being extruded by the outer wall of the water scooping cylinder 3 (see Figure 6 ).

[0053] When the driving assembly is temporarily stopped and one of the second side grooves 6 corresponds to the first side groove 5, the moving protrusion 10 abuts against the fixed protrusion 9, the water scooping cylinder 3 is controlled to rotate in positive and negative directions for multiple times at a small amplitude, when the fixed protrusion 9 contacts the moving protrusion 10, the fixed protrusion 9 is extruded by the moving protrusion 10, and the filter screen 7 swings towards the direction of the active gap 22, when the fixed protrusion 9 is staggered with the moving protrusion 10, the filter screen 7 swings and resets towards the direction away from the active gap 22 under the action of the reset elastic force of the elastic ring 8, so that the filter screen 7 swings in the second side groove 6, and the impurities are loosened and shaken off.

[0054] When the water scooping cylinder 3 is controlled to rotate in positive and negative directions, the first side groove 5 can keep covering the second side groove 6.

[0055] By setting the moving protrusion 10 and the fixed protrusion 9, and by cooperating the movement of the processing piece 4 and the rotation of the water scooping cylinder 3, the filter screen 7 swings in the second side groove 6, the impurities are loosened and shaken off, and the effect of subsequent suction is ensured.

[0056] Referring to Figure 1 , Figure 3 , Figure 4 , Figure 7 As shown in the middle, when specifically arranged, the moving assembly includes a screw rod 15, a limiting sliding rod 16, two cross plates 17, a second motor 21 and a bottom plate 26, the cross plates 17 are provided in two, the screw rod 15 is rotationally connected to the bottom end of the float cylinder 1, the limiting sliding rod 16 is fixedly connected to the bottom end of the float cylinder 1, the bottom plate 26 is below the circular plate 2, the bottom ends of the screw rod 15 and the limiting sliding rod 16 are fixedly connected to the bottom plate 26, the two cross plates 17 are fixedly connected to the two sides of the circular plate 2, one of the cross plates 17 is provided with a through hole for the limiting sliding rod 16 to pass through, the other cross plate 17 is provided with a threaded hole matched with the screw rod 15, the second motor 21 is fixedly installed in the interior of the float cylinder 1, and the screw rod 15 is fixedly connected to the driving shaft of the second motor 21.

[0057] Specifically, the second motor 21 drives the screw rod 15 to rotate, and under the cooperation of the limiting sliding rod 16 and the two cross plates 17, the circular plate 2 moves up and down, and multiple-depth water scooping is realized.

[0058] The application further discloses a use method of the buoy type water quality monitoring device. S1, preparation, the water suction cylinder 3 keeps a closed state until reaching a sampling position; S2, sampling, the water suction cylinder 3 rotates to suck water; S3, cleaning, a shielding area is formed at the containing gap to suck impurities.

Claims

1. A buoy-type water quality monitoring device, comprising a circular plate (2) disposed below a buoy tube (1), characterized in that: A water-drawing cylinder (3) for drawing water at multiple depths is provided at the bottom of the circular plate (2); The middle section of the side wall of the water-drawing tube (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 inside of the second side groove (6) into a movable gap (22) and a receiving gap, wherein the movable gap (22) is close to the axis of the water-drawing tube (3); A processing member (4) is slidably provided on the outside of the water-drawing cylinder (3), and a first side groove (5) is provided on the processing member (4); When placed in a body of water, the processing element (4) covers the second side groove (6), the water-drawing tube (3) closes and reaches the sampling position, and then the processing element (4) is controlled to move axially along the water-drawing tube (3), the second side groove (6) contacts the water body, and the water-drawing tube (3) drives the second side groove (6) to rotate and draw water; During cleaning, the first side groove (5) and the second side groove (6) are correspondingly connected, and the movable gap (22) is closed by the partition component to form an enclosed area for sucking impurities.

2. A buoy-type water quality monitoring device according to claim 1, characterized in that: The partition assembly comprises an inner rod (12) and an inner arc plate (13), wherein 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), and the inner arc plate (13) is fitted above the inner wall of the water-drawing tube (3), and the inner arc plate (13) corresponds to the second side groove (6).

3. The buoy-type water quality monitoring device according to claim 1, characterized in that: A plurality of the second side grooves (6) are provided, and the plurality of second side grooves (6) are evenly distributed around the water drawing tube (3).

4. The buoy-type water quality monitoring device according to claim 1, characterized in that: The processing part (4) includes an outer sleeve (401) and an outer arc plate (402), wherein the outer sleeve (401) is slidably arranged on the outside of the water-drawing cylinder (3), and 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), and the first side groove (5) is opened on the concave surface of the outer arc plate (402).

5. The buoy-type water quality monitoring device according to claim 4, characterized in that: A control component for driving the processing member (4) to move up and down is provided on the circular plate (2), and the control component includes an electric push rod (14).

6. The buoy-type water quality monitoring device according to claim 1, characterized in that: 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 to the inside of the elastic ring (8).

7. The buoy-type water quality monitoring device according to claim 6, characterized in that: 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), and the movable protrusion (10) is in abutment with the fixed protrusion (9).

8. The buoy-type water quality monitoring device according to claim 1, characterized in that: The top of the water-drawing cylinder (3) is provided with a bottom cylinder (24), and a through groove for the bottom cylinder (24) to pass through is opened on the circular plate (2), and a top cylinder (25) is slidably provided inside the bottom cylinder (24), and the top of the top cylinder (25) extends to the inside of the buoy cylinder (1), and a driving component for driving the water-drawing cylinder (3), the bottom cylinder (24), and the top cylinder (25) to rotate is provided inside the buoy cylinder (1).

9. The buoy-type water quality monitoring device according to claim 1, characterized in that: The bottom end of the buoy barrel (1) is provided with a moving assembly for driving the circular plate (2) to move up and down, and the moving assembly includes a screw (15), a limiting slide rod (16), a transverse plate (17), a second motor (21) and a bottom plate (26).

10. A method for using a buoy-type water quality monitoring device, characterized in that: The buoy-type water quality monitoring device according to any one of claims 1 to 9 further comprises the following operating steps: S1, preparation, the water-drawing tube (3) remains closed until it reaches the sampling position; S2, sampling, water pump (3) rotating water pump; S3. Clean and form an enclosed area in the gap to absorb impurities.

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