Water quality analysis and detection device and detection method

Abstract

The invention discloses a water quality analysis and detection device and method, and relates to the technical field of water quality detection.The water quality analysis and detection device comprises a bottom plate, a supporting plate is fixedly connected to the upper portion of the bottom plate, a first water pump is movably connected to the end, away from the bottom plate, of the supporting plate, and a double-shaft water pump is movably connected to the side, close to the first water pump, of the bottom plate; the first water pump and the double-shaft water pump are jointly provided with a water quality filtering centrifugal assembly, rotation of a first rotating shaft can drive a scraping rod, a stirring rod and a flow limiting plate to rotate at the same time, starting of the double-shaft water pump can drive a second rotating shaft and a centrifugal machine to rotate at a constant speed in the horizontal direction, and a water quality extracting and detecting assembly is arranged on the storage barrel; the detection disc rotates at a constant speed and makes contact with the end, away from the bottom plate, of the suction pipe, impurities such as suspended solids and particulate matter in a water sample can be effectively removed by arranging the water quality filtering centrifugal assembly and the filtering plate, the clarity and purity of the water sample are improved, and therefore the accuracy and reliability of follow-up detection are ensured.

Description

Technical Field

[0001] The present invention relates to the technical field of water quality detection, and in particular to a water quality analysis and detection device and a detection method. Background Art

[0002] The problem of water pollution is becoming increasingly serious. Water quality testing has become a key means to ensure the quality of water resources and human health. Water quality analysis and testing devices, such as multi-parameter water quality online analyzers and fully automatic ion analyzers, can monitor various parameters in water in real time, such as dissolved oxygen, pH value, conductivity, etc., and achieve accurate detection through ion selective electrode measurement. The application of these devices and methods not only helps to ensure the safety and reliability of water supply systems and prevent waterborne diseases, but is also crucial to protecting the environment and ecosystems and maintaining the health of the water environment.

[0003] After searching, the invention patent with the Chinese patent publication number CN110646421A discloses an automatic water quality detection device and detection system;

[0004] Compared with the prior art, the automatic water quality detection device provided by the invention patent with Chinese patent publication number CN110646421A has a sampling and injection mechanism that can automatically obtain water samples through a water sample extraction power mechanism, and the sampling and injection mechanism can inject the obtained water samples into a test package under the drive of the driving mechanism, thereby achieving the purpose of automatic sampling and automatic detection. This detection device is simple and convenient to operate, reduces labor costs, and improves work efficiency.

[0005] However, in actual use of the above-mentioned device, although this automatic water quality detection device achieves the purpose of automatic sampling and automatic detection through the sampling injection mechanism and the driving mechanism, the device lacks filtration and centrifugal stratification of water quality in the sampling and detection process, resulting in the inability to accurately distinguish and detect various pollutants and components in the water. This defect may cause certain specific types of pollutants to be omitted or misjudged, thereby affecting the accuracy and comprehensiveness of water quality detection. Therefore, it is necessary to propose a water quality analysis and detection device and detection method. Summary of the invention

[0006] The purpose of the present invention is to solve the shortcomings of the prior art that it is difficult to perform water quality classification and detection. Specifically, the device lacks the ability to finely classify and identify different water quality components during the sampling and detection process, and proposes a water quality analysis and detection device and detection method.

[0007] In order to achieve the above object, the present invention adopts the following technical solutions:

[0008] 1. A water quality analysis and detection device, comprising a bottom plate, a support plate fixedly connected to the upper part of the bottom plate, a first water pump movably connected to one end of the support plate away from the bottom plate, a double-shaft water pump movably connected to the side of the bottom plate close to the first water pump, a water quality filtering centrifugal assembly is commonly provided on the first water pump and the double-shaft water pump, the water quality extraction centrifugal assembly comprises a hose movably connected to the first water pump, a storage bucket and a filter plate, a first rotating shaft and a second rotating shaft respectively fixedly connected to both ends of the double-shaft water pump, and a scraping rod, a plurality of stirring rods and a flow limiting plate fixedly connected to the outer side of the first rotating shaft, a water flow pipe movably connected to the outer side of the first rotating shaft, a plurality of centrifuges are provided on the second rotating shaft, the rotation of the first rotating shaft will scrape impurities from the upper surface of the filter plate, the rotation of the first rotating shaft will simultaneously drive the scraping rod, the stirring rod and the flow limiting plate to rotate, and the start of the double-shaft water pump will drive the second rotating shaft and the centrifuge to rotate at a uniform speed in the horizontal direction;

[0009] The storage barrel is provided with a water quality extraction and detection component, which includes a threaded rod, a movable plate, a second water pump, a straw and a detection plate movably connected to the storage barrel. The rotation of the threaded rod will drive the movable plate to move up and down, and the up and down movement of the movable plate will drive the second water pump and the straw to move up and down. The detection plate will rotate at a uniform speed and contact the end of the straw away from the bottom plate.

[0010] The above technical solution further includes:

[0011] The end of the support plate away from the bottom plate is fixedly connected with a connecting block, the end of the support plate away from the bottom plate is fixedly connected to the storage barrel, the connecting block is fixedly connected to the first water pump, the connecting block is used to connect the first water pump and support the first water pump, and the end of the first water pump away from the first rotating shaft is movably connected to the hose.

[0012] One end of the first water pump away from the hose is fixedly connected to a connecting pipe, and the end of the connecting pipe away from the first water pump is fixedly connected to a storage barrel. A limiting groove is provided on the outer side of the storage barrel, and a collecting box is fixedly connected to the inner side of the limiting groove, so that impurities can enter the collecting box through the limiting groove.

[0013] The outer side of the support plate is symmetrically fixedly connected with a connecting plate, and the two groups of connecting plates are fixedly connected between one end away from the support plate and the dual-axis water pump, and the inner side of the storage barrel is fixedly connected to the filter plate. The side of the scraper rod close to the bottom plate is in contact with the side of the filter plate close to the scraper rod, and the scraper rod is used to scrape impurities on the surface of the filter plate.

[0014] The multiple stirring rods are evenly distributed along the first rotating axis in a circle, a water flow hole is opened on the inner side of the flow limiting plate, a water flow trough is opened on the inner side of the storage barrel, the inner side of the water flow trough and the water flow pipe are fixedly connected, and the water flow trough and the water flow pipe limit the water quality on the path.

[0015] A rotating disk is fixedly connected to the outer side of the second rotating shaft, and the inner side of the rotating disk is fixedly connected to a plurality of centrifuges. The plurality of centrifuges are evenly distributed along the circumference of the rotating disk. The size of the water pipe is adapted to the size of the centrifuge, and water can flow into the centrifuge through the water pipe.

[0016] A rotating rod is rotatably connected to the outer side of the storage barrel, and an end of the rotating rod close to the hose is meshed with the first rotating shaft. A fixed block is fixedly connected to the outer side of the storage barrel, and a side of the fixed block away from the bottom plate is rotatably connected to the threaded rod, and an end of the threaded rod away from the fixed block is meshed with the rotating rod. The rotation of the rotating rod can drive the threaded rod to rotate, and a side of the fixed block away from the bottom plate is fixedly connected to a limiting rod.

[0017] The threaded rod is threadedly connected to the movable plate, the movable plate is slidably connected to the water flow hole, the movable plate is fixedly connected to the second water pump on one side away from the bottom plate, the second water pump is connected to the suction pipe, and the start-up of the second water pump can make the water in the centrifuge flow into the suction pipe.

[0018] A motor is fixedly connected to one side of the movable plate away from the bottom plate, an end of the motor away from the movable plate is fixedly connected to a turntable, an end of the turntable away from the motor is fixedly connected to a plurality of detection disks, and the plurality of detection disks are evenly distributed in a circle along the turntable. Classification detection of the detection disks can more effectively evaluate the source, degree and impact of water pollution.

[0019] A water quality analysis and detection method comprises the following steps:

[0020] Step 1: Start the first water pump to pump water into the storage tank through the hose. Start the double-shaft water pump to drive the first rotating shaft to rotate. The rotation of the first rotating shaft can scrape impurities on the surface of the filter plate. The rotation of the first rotating shaft can drive multiple stirring rods to stir, so that the substances in the water are evenly distributed;

[0021] Step 2: The rotation of the first rotating shaft can drive the flow limiting plate to rotate. The uniform rotation of the flow limiting plate can make the water flow into the centrifuge below evenly in sequence. The centrifuge will rotate with the rotation of the second rotating shaft. The centrifuge will centrifuge the water so that the substances in the water are stratified in the centrifuge.

[0022] Step 3: The rotation of the first rotating shaft can drive the threaded rod to rotate, and the rotation of the threaded rod can drive the movable plate to move up and down in the horizontal direction. The movement of the movable plate and the start-up of the second water pump can drive the suction tube to move up and down, and the water quality in the centrifuge water is pumped into the detection plate through the water pipe for classification detection;

[0023] Step 4: The detection plate can rotate at a constant speed in the horizontal direction. The detection plate will receive the water sucked in by the straw in turn and perform corresponding tests.

[0024] The present invention has the following beneficial effects:

[0025] 1. In the present invention, by setting a water quality filtration centrifugal assembly, the filter plate can effectively remove impurities such as suspended matter and particulate matter in the water sample, improve the clarity and purity of the water sample, thereby ensuring the accuracy and reliability of subsequent detection. Secondly, through the centrifugal action of the centrifuge, the different components in the water sample can be further separated and formed into layers, such as soluble solids, colloidal substances, etc., which helps to have a deeper understanding of the composition and characteristics of water quality.

[0026] 2. In the present invention, by setting up a water quality extraction and detection component, the movement of the movable plate and the start-up of the second water pump can drive the suction pipe to move up and down, and the water quality in the centrifuge water is pumped into the detection disk for classification detection through the water pipe. Through the classification detection of the detection disk, the source, degree and impact of water pollution can be more effectively evaluated, which provides strong support for the formulation of targeted control measures, improves work efficiency, and can finely classify different water quality components during the detection process. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 This is a schematic diagram of the overall structure of a water quality analysis and detection device and detection method proposed by the present invention;

[0028] Figure 2 This is a schematic diagram of the overall rear view structure of a water quality analysis and detection device and detection method proposed by the present invention;

[0029] Figure 3 This is a schematic diagram of the overall cross-sectional structure of a water quality analysis and detection device and detection method proposed by the present invention;

[0030] Figure 4 for Figure 3 A schematic diagram of the structure enlargement in the middle;

[0031] Figure 5 for Figure 3 A magnified schematic diagram of the structure at B in the middle;

[0032] Figure 6 for Figure 3 A magnified schematic diagram of the structure at C in the middle;

[0033] Figure 7 for Figure 3 Enlarged schematic diagram of the structure at point D in the middle.

[0034] In the figure: 1. bottom plate; 2. support plate; 3. connecting block; 4. first water pump; 5. hose; 6. connecting pipe; 7. storage barrel; 8. connecting plate; 9. double-shaft water pump; 10. first rotating shaft; 11. filter plate; 12. scraper rod; 13. collecting box; 14. stirring rod; 15. flow limiting plate; 16. water flow hole; 17. water flow trough; 18. water flow pipe; 19. second rotating shaft; 20. rotating disk; 21. centrifuge; 22. rotating rod; 23. threaded rod; 24. moving plate; 25. fixed block; 26. limiting rod; 27. second water pump; 28. suction pipe; 29. ​​motor; 30. turntable; 31. detection disk; 32. limiting groove. DETAILED DESCRIPTION

[0035] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0036] Embodiment 1

[0037] like Figure 1-Figure 7 As shown, a water quality analysis and detection device proposed by the present invention comprises a bottom plate 1, a support plate 2 is fixedly connected to the upper part of the bottom plate 1, a first water pump 4 is movably connected to the end of the support plate 2 away from the bottom plate 1, a double-shaft water pump 9 is movably connected to the side of the bottom plate 1 close to the first water pump 4, a water quality filtering centrifugal assembly is commonly provided on the first water pump 4 and the double-shaft water pump 9, and the water quality extraction centrifugal assembly comprises a hose 5 movably connected to the first water pump 4, a storage barrel 7 and a filter plate 11, and a first rotating shaft 10 and a second rotating shaft 11 respectively fixedly connected to both ends of the double-shaft water pump 9. The first rotating shaft 10 includes a moving shaft 19, a scraping rod 12, a plurality of stirring rods 14 and a flow limiting plate 15 fixedly connected to the outside of the first rotating shaft 10, a water pipe 18 movably connected to the outside of the first rotating shaft 10, and a plurality of centrifuges 21 are arranged on the second rotating shaft 19. The rotation of the first rotating shaft 10 will scrape impurities from the upper surface of the filter plate 11, and the rotation of the first rotating shaft 10 will simultaneously drive the scraping rod 12, the stirring rod 14 and the flow limiting plate 15 to rotate. The start-up of the double-shaft water pump 9 will drive the second rotating shaft 19 and the centrifuge 21 to rotate at a uniform speed in the horizontal direction.

[0038] A water quality extraction and detection component is provided on the storage barrel 7, and the water quality extraction and detection component includes a threaded rod 23, a movable plate 24, a second water pump 27, a straw 28 and a detection disk 31 movably connected to the storage barrel 7. The rotation of the threaded rod 23 will drive the movable plate 24 to move up and down, and the up and down movement of the movable plate 24 will drive the second water pump 27 and the straw 28 to move up and down. The detection disk 31 will rotate at a uniform speed and contact the end of the straw 28 away from the bottom plate 1.

[0039] One end of the support plate 2 away from the bottom plate 1 is fixedly connected with a connecting block 3, the end of the support plate 2 away from the bottom plate 1 is fixedly connected to the storage barrel 7, the connecting block 3 is fixedly connected to the first water pump 4, the connecting block 3 is used to connect the first water pump 4 and support the first water pump 4, and the end of the first water pump 4 away from the first rotating shaft 10 is movably connected to the hose 5.

[0040] One end of the first water pump 4 away from the hose 5 is fixedly connected to a connecting pipe 6, and one end of the connecting pipe 6 away from the first water pump 4 is fixedly connected to a storage barrel 7. A limiting groove 32 is provided on the outer side of the storage barrel 7, and a collecting box 13 is fixedly connected to the inner side of the limiting groove 32, so that impurities can enter the collecting box 13 through the limiting groove 32.

[0041] The outer side of the support plate 2 is symmetrically fixedly connected with a connecting plate 8, the two sets of connecting plates 8 are fixedly connected between one end away from the support plate 2 and the dual-axis water pump 9, the inner side of the storage barrel 7 and the filter plate 11 are fixedly connected, and the scraping rod 12 is close to the side of the bottom plate 1 and the side of the filter plate 11 close to the scraping rod 12. The scraping rod 12 is used to scrape impurities on the surface of the filter plate 11.

[0042] A plurality of stirring rods 14 are evenly distributed along the first rotating shaft 10 in a circular shape, a water flow hole 16 is opened on the inner side of the flow limiting plate 15, a water flow trough 17 is opened on the inner side of the storage barrel 7, the inner side of the water flow trough 17 and the water flow pipe 18 are fixedly connected, and the water flow trough 17 and the water flow pipe 18 limit the water quality on the path.

[0043] A rotating disk 20 is fixedly connected to the outer side of the second rotating shaft 19, and the inner side of the rotating disk 20 is fixedly connected to multiple centrifuges 21. The multiple centrifuges 21 are evenly distributed along the circumference of the rotating disk 20. The size of the water pipe 18 is adapted to the size of the centrifuge 21, and water can flow into the centrifuge 21 through the water pipe 18.

[0044] In this embodiment, the bottom plate 1 serves as a load-bearing device for the entire device, the support plate 2 serves as a connection between the bottom plate 1 and the connection block 3, the support plate 2 mainly serves as a support, the connection block 3 serves as a connection between the support plate 2 and the first water pump 4, and serves as a support for the first water pump 4. By starting the first water pump 4, water is pumped into the storage barrel 7 through the hose 5, and the start of the double-axis water pump 9 drives the first rotating shaft 10 to rotate. The rotation of the first rotating shaft 10 can scrape off impurities on the surface of the filter plate 11, and the scraped impurities are pushed to the inner side of the collection box 13 through the limiting groove 32. The collection box 13 collects impurities in the water, and the rotation of the first rotating shaft 10 can drive multiple stirring The rod 14 is stirred to keep the substances in the water uniformly distributed. The rotation of the first rotating shaft 10 can drive the flow limiting plate 15 to rotate. Through the uniform rotation of the flow limiting plate 15, the water can flow into the water pipe 18 through the water flow hole 16 and the water flow trough 17. The start of the double-axis water pump 9 can drive the second rotating shaft 19 to rotate. The rotation of the second rotating shaft 19 can drive the rotating disk 20 to rotate. The rotation of the rotating disk 20 can drive multiple centrifuges 21 to rotate. The water pipe 18 can make the water uniformly flow into the centrifuge 21 below in sequence. The centrifuge 21 will rotate with the rotation of the second rotating shaft 19. The centrifuge 21 will centrifuge the water to make the substances in the water stratified in the centrifuge 21.

[0045] Embodiment 2

[0046] like Figure 1-Figure 7 As shown, based on the first embodiment, a rotating rod 22 is rotatably connected to the outer side of the storage barrel 7, and the end of the rotating rod 22 close to the hose 5 is meshed with the first rotating shaft 10, and a fixed block 25 is fixedly connected to the outer side of the storage barrel 7, and the side of the fixed block 25 away from the bottom plate 1 is rotatably connected to the threaded rod 23, and the end of the threaded rod 23 away from the fixed block 25 is meshed with the rotating rod 22. The rotation of the rotating rod 22 can drive the threaded rod 23 to rotate, and the side of the fixed block 25 away from the bottom plate 1 is fixedly connected to a limiting rod 26.

[0047] The threaded rod 23 and the movable plate 24 are threadedly connected, the movable plate 24 and the water flow hole 16 are slidably connected, the side of the movable plate 24 away from the bottom plate 1 is fixedly connected to the second water pump 27, the second water pump 27 and the suction pipe 28 are interconnected, and the start of the second water pump 27 can allow the water in the centrifuge 21 to flow into the suction pipe 28.

[0048] A motor 29 is fixedly connected to one side of the movable plate 24 away from the bottom plate 1, an end of the motor 29 away from the movable plate 24 is fixedly connected to a turntable 30, an end of the turntable 30 away from the motor 29 is fixedly connected to a plurality of detection disks 31, and the plurality of detection disks 31 are evenly distributed in a circle along the turntable 30. Classification detection of the detection disks 31 can more effectively evaluate the source, degree and impact of water pollution.

[0049] Step three: The rotation of the first rotating shaft 10 can drive the threaded rod 23 to rotate, and the rotation of the threaded rod 23 can drive the movable plate 24 to move up and down in the horizontal direction. The movement of the movable plate 24 and the start-up of the second water pump 27 can drive the suction tube 28 to move up and down, and the water quality in the centrifuge 21 is pumped into the detection disk 31 through the water pipe 18 for classification detection.

[0050] Step 4: The detection disk 31 can rotate at a uniform speed in the horizontal direction. Different detection reagents are placed in the detection disk 31, so that the substances in the water can be tested for reactions in sequence.

[0051] In this embodiment, the rotation of the first rotating shaft 10 can drive the threaded rod 23 to rotate, and the rotation of the threaded rod 23 can drive the movable plate 24 to move up and down in the horizontal direction. The function of the limit rod 26 is to limit the position of the movable plate 24. Through the movement of the movable plate 24 and the start of the second water pump 27, the suction tube 28 can be driven to move up and down, and the water quality in the water of the centrifuge 21 is pumped into the detection disk 31 through the water pipe 18 for classification detection. When the motor 29 is started, the output shaft end of the motor 29 will drive the turntable 30 to rotate at a uniform speed, so that the uniform rotation of the turntable 30 will drive the detection disk 31 to rotate at a uniform speed. The start of the second water pump 27 will pump the water quality in the water of the centrifuge 21 into the detection disk 31 for classification detection. Through the classification detection of the detection disk 31, the source, degree and impact of water pollution can be more effectively evaluated.

[0052] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A water quality analysis and detection device, comprising a bottom plate (1), characterized in that: The upper part of the bottom plate (1) is fixedly connected to a support plate (2); one end of the support plate (2) away from the bottom plate (1) is movably connected to a first water pump (4); a side of the bottom plate (1) close to the first water pump (4) is movably connected to a double-shaft water pump (9); the first water pump (4) and the double-shaft water pump (9) are jointly provided with a water quality filtering centrifugal assembly; the water quality extraction centrifugal assembly comprises a hose (5) movably connected to the first water pump (4), a storage barrel (7) and a filter plate (11); a first rotating shaft (10) and a second rotating shaft (19) respectively fixedly connected to two ends of the double-shaft water pump (9); and the first rotating shaft ( 10) a scraping rod (12), a plurality of stirring rods (14) and a flow-limiting plate (15) fixedly connected to the outside of the first rotating shaft (10), a water pipe (18) is movably connected to the outside of the first rotating shaft (10), and a plurality of centrifuges (21) are arranged on the second rotating shaft (19); the rotation of the first rotating shaft (10) will scrape impurities from the upper surface of the filter plate (11); the rotation of the first rotating shaft (10) will simultaneously drive the scraping rod (12), the stirring rod (14) and the flow-limiting plate (15) to rotate; the start of the double-shaft water pump (9) will drive the second rotating shaft (19) and the centrifuge (21) to rotate at a uniform speed in the horizontal direction; The storage barrel (7) is provided with a water quality extraction and detection component, which comprises a threaded rod (23), a movable plate (24), a second water pump (27), a suction pipe (28) and a detection plate (31) movably connected to the storage barrel (7); the rotation of the threaded rod (23) drives the movable plate (24) to move up and down; the up and down movement of the movable plate (24) drives the second water pump (27) and the suction pipe (28) to move up and down; the detection plate (31) rotates at a uniform speed and contacts with the end of the suction pipe (28) away from the bottom plate (1).

2. A water quality analysis and detection device according to claim 1, characterized in that: The end of the support plate (2) away from the bottom plate (1) is fixedly connected to a connection block (3); the end of the support plate (2) away from the bottom plate (1) is fixedly connected to the storage barrel (7); the connection block (3) is fixedly connected to the first water pump (4); and the end of the first water pump (4) away from the first rotating shaft (10) is movably connected to the hose (5).

3. A water quality analysis and detection device according to claim 1, characterized in that: The end of the first water pump (4) away from the hose (5) is fixedly connected to a connecting pipe (6), the end of the connecting pipe (6) away from the first water pump (4) is fixedly connected to a storage barrel (7), a limiting groove (32) is provided on the outside of the storage barrel (7), and a collection box (13) is fixedly connected to the inside of the limiting groove (32).

4. A water quality analysis and detection device according to claim 1, characterized in that: The outer side of the support plate (2) is symmetrically fixedly connected with a connecting plate (8), one end of the two groups of connecting plates (8) away from the support plate (2) is fixedly connected to the double-axis water pump (9), the inner side of the storage barrel (7) is fixedly connected to the filter plate (11), and the side of the scraper rod (12) close to the bottom plate (1) is in contact with the side of the filter plate (11) close to the scraper rod (12).

5. A water quality analysis and detection device according to claim 1, characterized in that: The plurality of stirring rods (14) are evenly distributed along the circumference of the first rotating shaft (10); a water flow hole (16) is provided on the inner side of the flow limiting plate (15); a water flow trough (17) is provided on the inner side of the storage barrel (7); and the inner side of the water flow trough (17) and the water flow pipe (18) are fixedly connected.

6. A water quality analysis and detection device according to claim 1, characterized in that: A rotating disk (20) is fixedly connected to the outer side of the second rotating shaft (19), and the inner side of the rotating disk (20) is fixedly connected to a plurality of centrifuges (21). The plurality of centrifuges (21) are evenly distributed along the circumference of the rotating disk (20), and the size of the water pipe (18) is adapted to the size of the centrifuges (21).

7. A water quality analysis and detection device according to claim 1, characterized in that: The outer side of the storage barrel (7) is rotatably connected to a rotating rod (22), and one end of the rotating rod (22) close to the hose (5) is meshed with the first rotating shaft (10). The outer side of the storage barrel (7) is fixedly connected to a fixing block (25), and the side of the fixing block (25) away from the bottom plate (1) is rotatably connected to the threaded rod (23), and one end of the threaded rod (23) away from the fixing block (25) is meshed with the rotating rod (22). The side of the fixing block (25) away from the bottom plate (1) is fixedly connected to a limiting rod (26).

8. A water quality analysis and detection device according to claim 1, characterized in that: The threaded rod (23) and the movable plate (24) are threadedly connected, the movable plate (24) and the water flow hole (16) are slidably connected, the side of the movable plate (24) away from the bottom plate (1) is fixedly connected to the second water pump (27), and the second water pump (27) and the suction pipe (28) are connected.

9. A water quality analysis and detection device according to claim 1, characterized in that: A motor (29) is fixedly connected to one side of the movable plate (24) away from the bottom plate (1); an end of the motor (29) away from the movable plate (24) is fixedly connected to a turntable (30); an end of the turntable (30) away from the motor (29) is fixedly connected to a plurality of detection disks (31); and the plurality of detection disks (31) are evenly distributed in a circumferential manner between the turntable (30).

10. A water quality analysis and detection method according to claims 1-9, characterized in that: The steps include: Step 1: The first water pump (4) is started to pump water into the storage barrel (7) through the hose (5), and the double-shaft water pump (9) is started to drive the first rotating shaft (10) to rotate. The rotation of the first rotating shaft (10) can scrape impurities on the surface of the filter plate (11), and the rotation of the first rotating shaft (10) can drive a plurality of stirring rods (14) to stir; Step 2: The rotation of the first rotating shaft (10) can drive the flow limiting plate (15) to rotate. The flow limiting plate (15) rotates at a uniform speed, so that the water can flow into the centrifuge (21) below in a uniform manner. The centrifuge (21) rotates along with the rotation of the second rotating shaft (19). The centrifuge (21) centrifuges the water, so that substances in the water are separated into layers in the centrifuge (21). Step 3: The rotation of the first rotating shaft (10) can drive the threaded rod (23) to rotate, and the rotation of the threaded rod (23) can drive the movable plate (24) to move up and down in the horizontal direction. The movement of the movable plate (24) and the start of the second water pump (27) can drive the suction pipe (28) to move up and down, and the water quality in the centrifuge (21) is pumped into the detection disk (31) through the water pipe (18) for classification detection; Step 4: The detection plate (31) can rotate at a constant speed in the horizontal direction. The detection plate (31) will sequentially receive the water sucked in by the straw (28) and perform corresponding detection.

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