A floating aquaculture water quality testing device

Abstract

This utility model discloses a floating aquaculture water quality testing device, belonging to the technical field of water quality testing devices, including a base plate. When testing is required, this utility model uses a pumping mechanism to pump water. Water at other depths enters the buffer tank through a first rigid pipe, a T-shaped hole, and a second rigid pipe. The water compresses a piston, causing it to move upwards. This piston movement drives a rectangular rod upwards, while two vertical springs deform, drawing water at other depths into the buffer tank. After pumping for a period of time, both the first rigid pipe and the flexible pipe contain water at the target depth. At this point, a switching mechanism drives a rotating ball to rotate, causing the T-shaped hole to rotate 90 degrees clockwise, connecting the first rigid pipe and the vertical rigid pipe. Water at the target depth in the first rigid pipe can then enter the testing tank through the T-shaped hole and the vertical rigid pipe. After a certain amount of water has entered, it can be tested through the testing end of the water quality analyzer.

Description

Technical Field

[0001] This utility model relates to the technical field of water quality testing devices, and in particular to a floating aquaculture water quality testing device. Background Technology

[0002] Aquaculture is a production activity involving the breeding, cultivation, and harvesting of aquatic plants and animals under human control, typically encompassing the entire process from seedling to finished aquatic product. Water quality testing devices, as essential tools in aquaculture, can replace conventional water quality testing with specialized instruments. They are widely applicable to large, medium, and small water plants, industrial and mining enterprises, swimming pools, disease control centers, and other settings, enabling the detection of concentrations in domestic or industrial water.

[0003] While some existing water quality testing devices can detect water at different depths, they have significant drawbacks. For example, the device with notification number CN221485384U allows water to directly enter during the descent of the hollow iron ball, resulting in residual water from non-target depths remaining in the hose below the surface and inside the hollow iron ball. This initial water ingress contaminates subsequently extracted samples, affecting the accuracy of the test results. Furthermore, existing devices often lack efficient buffering and switching mechanisms when switching between water samples at different depths, making it difficult to ensure that the test chamber always contains water samples from the target depth, leading to decreased testing accuracy. Therefore, there is an urgent need for a floating aquaculture water quality testing device that can avoid interference from non-target water samples and improve testing accuracy. Utility Model Content

[0004] The purpose of this application is to provide a floating aquaculture water quality testing device to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this application provides the following technical solution: a floating aquaculture water quality testing device, comprising a base plate, a foam float fixedly installed at the bottom of the base plate, a testing box and a buffer box fixedly installed at the top of the base plate via two vertical plates, a water quality analyzer fixedly installed at the top of the testing box, the testing end of the water quality analyzer extending into the testing box, a spherical shell disposed above the testing box, a vertical rigid pipe connected to the sides of the spherical shell and the testing box that are close to each other, a first rigid pipe and a second rigid pipe connected to each other respectively installed on both sides of the spherical shell, the bottom end of the second rigid pipe connected to the bottom of the buffer box, and a water pumping mechanism installed at the bottom end of the first rigid pipe; Both the buffer box and the detection box have water outlet holes on their bottom inner walls, and the bottom of the detection box is fixedly equipped with a sealing mechanism for sealing the two water outlet holes. A piston is slidably mounted on the annular inner wall of the buffer box. The top of the piston is fixedly connected to the top inner wall of the buffer box by two vertical springs. A rotating ball is rotatably mounted inside the spherical shell. The rotating ball has a T-shaped hole. Two of the holes in the T-shaped hole correspond to the positions of the first rigid tube and the second rigid tube, respectively. The remaining hole in the T-shaped hole faces upward. A switching mechanism for switching the rotating ball is installed on the side of the spherical shell. The switching mechanism is installed in conjunction with the sealing mechanism and the piston.

[0006] Preferably, the switching mechanism includes a rectangular rod, a rectangular hole is provided on the top of the buffer box, the top end of the rectangular rod extends outside the rectangular hole, a slot is provided on the side of the rectangular rod, two guide rods are fixedly installed on the annular side of the buffer box, a lower L-shaped plate is slidably sleeved on the two guide rods, an insert rod is fixedly installed on the side of the lower L-shaped plate, a through hole is provided on the inner wall of the buffer box, one end of the insert rod passes through the through hole and abuts against the side of the rectangular rod, the position of the insert rod corresponds to the position of the slot, a limit block is fixedly installed on the top of the insert rod, and the side of the limit block is fixedly connected to the inner wall of the buffer box by a horizontal spring.

[0007] Preferably, the switching mechanism further includes an upper L-shaped plate fixedly installed at the top of the lower L-shaped plate. The upper L-shaped plate has a vertical extrusion hole on its side. A rotating sleeve is fixedly installed on the side of the spherical shell. A rotating shaft is rotatably installed inside the rotating sleeve. One end of the rotating shaft is fixedly connected to the side of the rotating ball. The other end of the rotating shaft extends to the outside of the rotating sleeve and is fixedly installed with an eccentrically arranged eccentric column. One end of the eccentric column passes through the vertical extrusion hole.

[0008] Preferably, the connection points of the first rigid tube and the spherical shell, the connection points of the second rigid tube and the spherical shell, and the connection points of the spherical shell and the vertical rigid tube are located on the same vertical plane, and the rotating sleeve is arranged perpendicular to the vertical rigid tube.

[0009] Preferably, the sealing mechanism includes an electric telescopic rod, the output end of which is fixedly mounted with a connecting rod, and the top of the connecting rod is fixedly mounted with two sealing blocks. The tops of the two sealing blocks abut against the bottoms of the buffer tank and the detection tank, respectively, and the positions of the two sealing blocks correspond to the positions of the two water outlets.

[0010] Preferably, a sealing ring is installed between the inner wall of the rotating sleeve and the outer side of the rotating shaft.

[0011] Preferably, the pumping mechanism includes a motor fixedly installed on the side of one of the upright plates, a connecting pipe fixedly sleeved on the output shaft of the motor, two baffles fixedly sleeved on the connecting pipe, a connected flexible hose fixedly installed on the side of the connecting pipe, a round hole opened on the top of the bottom plate and the foam float, the end of the flexible hose away from the upright plate is wound around the connecting pipe multiple times and passes through the two round holes and is fixedly installed with a connected weighted filter head, a water pump fixedly installed on the side of the other upright plate, the outlet of the water pump is connected to the bottom end of the first rigid pipe, a sealing pipe is fixedly installed at the inlet of the water pump, and the other end of the sealing pipe is rotatably installed inside the connecting pipe.

[0012] In summary, the technical effects and advantages of this utility model are as follows: When testing is required, this invention utilizes a pumping mechanism to pump water. Water at other depths enters the buffer tank through the first rigid pipe, the T-shaped hole, and the second rigid pipe. The water compresses the piston, causing it to move upwards. This piston movement drives the rectangular rod upwards, simultaneously deforming the two vertical springs. This allows water at other depths to be pumped into the buffer tank. After pumping for a period of time, both the first rigid pipe and the flexible pipe contain water at the target depth. The switching mechanism then rotates the rotating ball, causing the T-shaped hole to rotate 90 degrees clockwise, thus connecting the first rigid pipe and the vertical rigid pipe. Water at the target depth in the first rigid pipe can then enter the testing tank through the T-shaped hole and the vertical rigid pipe. After a certain amount of water has entered, it can be tested through the detection end of the water quality analyzer. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0014] Figure 1 This is a three-dimensional structural diagram of an embodiment of the present utility model; Figure 2 A first-person perspective three-dimensional structural diagram of the buffer box and piston after being cut open; Figure 3 A second-view three-dimensional structural diagram of the buffer box and piston after being cut open; Figure 4 for Figure 3 Enlarged view of point A in the middle; Figure 5 A horizontal sectional view showing the connection between the spherical shell, the rotating ball, the first rigid tube, the second rigid tube, the sealing ring, the rotating sleeve, and the rotating shaft; Figure 6 A vertical cross-sectional view showing the connection between the spherical shell, the rotating sphere, the first rigid tube, the second rigid tube, and the vertical rigid tube.

[0015] In the diagram: 1. Water quality analyzer; 2. Analyzer; 3. Motor; 4. Vertical plate; 5. Base plate; 6. Foam float; 7. Weighted filter head; 8. Water pump; 9. Hose; 10. First rigid pipe; 11. Buffer tank; 12. Spherical shell; 13. Connecting rod; 14. Electric telescopic rod; 15. Sealing block; 16. Vertical rigid pipe; 17. Second rigid pipe; 18. Lower L-shaped plate; 19. Water outlet; 20. Piston; 21. Vertical 21. Straight spring; 22. Rectangular rod; 23. Insert rod; 24. Horizontal spring; 25. Limiting block; 26. Slot; 27. Eccentric column; 28. Rotating shaft; 29. ​​Vertical extrusion hole; 30. Upper L-shaped plate; 31. Rotating ball; 32. T-shaped hole; 33. Sealing ring; 34. Rotating sleeve; 35. Rectangular hole; 36. Through hole; 37. Guide rod; 38. Connecting pipe; 39. Baffle; 40. Round hole; 41. Sealing pipe. Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0017] Please see Figures 1-6 The embodiments provided by this utility model are as follows: A floating aquaculture water quality testing device includes a base plate 5. A foam float 6 is fixedly installed at the bottom of the base plate 5. During use, the device can float on the water surface through the foam float 6. A testing box 2 and a buffer box 11 are fixedly installed on the top of the base plate 5 through two vertical plates 4 respectively. A water quality analyzer 1 is fixedly installed on the top of the testing box 2. The water quality analyzer 1 has an existing structure and will not be described in detail here. The testing end of the water quality analyzer 1 extends into the testing box 2. A spherical shell 12 is provided above the testing box 2. A vertical rigid pipe 16 is connected to the side of the spherical shell 12 and the testing box 2 that are close to each other. A first rigid pipe 10 and a second rigid pipe 17 are respectively installed on the two sides of the spherical shell 12. The bottom end of the second rigid pipe 17 is connected to the bottom of the buffer box 11. A water pumping mechanism is installed at the bottom end of the first rigid pipe 10. Both the buffer box 11 and the test box 2 have water outlet holes 19 on their bottom inner walls. The bottom of the test box 2 is fixedly equipped with a sealing mechanism for sealing the two water outlet holes 19. A piston 20 is slidably mounted on the annular inner wall of the buffer box 11. The top of the piston 20 is fixedly connected to the top inner wall of the buffer box 11 by two vertical springs 21. A rotating ball 31 is rotatably mounted inside the spherical shell 12. A T-shaped hole 32 is provided on the rotating ball 31. Two holes of the T-shaped hole 32 correspond to the positions of the first hard tube 10 and the second hard tube 17, respectively. The remaining hole of the T-shaped hole 32 is set upward. A switching mechanism for switching the rotating ball 31 is installed on the side of the spherical shell 12. The switching mechanism is installed in conjunction with the sealing mechanism and the piston 20.

[0018] With the above structure: when testing is required, water can be pumped out through the pumping mechanism. Water at other depths enters the buffer tank 11 through the first rigid pipe 10 into the T-shaped hole 32 and the second rigid pipe 17. The water will squeeze the piston 20, causing the piston 20 to move upward. The movement of the piston 20 drives the rectangular rod 22 to move upward. At the same time, the two vertical springs 21 deform, allowing water at other depths to be pumped into the buffer tank 11. After pumping for a period of time, the first rigid pipe 10 and the hose 9 are filled with water at the target depth. The switching mechanism causes the rotating ball 31 to rotate. The rotation of the rotating ball 31 causes the T-shaped hole 32 to rotate 90 degrees clockwise, thereby connecting the first rigid pipe 10 and the vertical rigid pipe 16. The water at the target depth in the first rigid pipe 10 can enter the testing tank 2 through the T-shaped hole 32 and the vertical rigid pipe 16. After a certain amount of water enters, it can be tested through the testing end of the water quality analyzer 1.

[0019] like Figure 3 , Figure 4 , Figure 5 and Figure 6 As shown, the switching mechanism includes a rectangular rod 22. A rectangular hole 35 is provided on the top of the buffer box 11. The top end of the rectangular rod 22 extends outside the rectangular hole 35. A slot 26 is provided on the side of the rectangular rod 22. Two guide rods 37 are fixedly installed on the annular side of the buffer box 11. A lower L-shaped plate 18 is slidably sleeved on the two guide rods 37. An insert rod 23 is fixedly installed on the side of the lower L-shaped plate 18. A through hole 36 is provided on the inner wall of the buffer box 11. One end of the insert rod 23 passes through the through hole 36 and abuts against the side of the rectangular rod 22. The position of the insert rod 23 corresponds to that of the slot 26. The top of the insert rod 23 is fixedly installed... A limiting block 25 is provided, and the side of the limiting block 25 is fixedly connected to the inner wall of the buffer box 11 by a horizontal spring 24. The switching mechanism also includes an upper L-shaped plate 30 fixedly installed at the top of the lower L-shaped plate 18. A vertical extrusion hole 29 is provided on the side of the upper L-shaped plate 30. A rotating sleeve 34 is fixedly installed on the side of the spherical shell 12. A rotating shaft 28 is rotatably installed inside the rotating sleeve 34. One end of the rotating shaft 28 is fixedly connected to the side of the rotating ball 31. The other end of the rotating shaft 28 extends to the outside of the rotating sleeve 34 and is fixedly installed with an eccentrically set eccentric column 27. One end of the eccentric column 27 passes through the vertical extrusion hole 29.

[0020] After a period of extraction, the first rigid tube 10 and the flexible tube 9 are filled with water at the target depth. At this time, the position of the insertion rod 23 corresponds to that of the slot 26. Due to the deformation of the horizontal spring 24, the limiting block 25 and the insertion rod 23 move under the force of the horizontal spring 24. The insertion rod 23 enters the slot 26. At the same time, the movement of the insertion rod 23 drives the lower L-shaped plate 18 and the upper L-shaped plate 30 to move. The movement of the lower L-shaped plate 18 causes the connecting rod 13 to contact the bottom end of the lower L-shaped plate 18. The movement of the upper L-shaped plate 30 causes the inner wall of the vertical extrusion hole 29 to extrude the eccentric column 27, causing the eccentric column 27 to rotate. The eccentric column 27 drives the rotating shaft 28 and the rotating ball 31 to rotate. The rotation of the rotating ball 31 causes the T-shaped hole 32 to rotate 90 degrees clockwise, thereby connecting the first rigid tube 10 and the vertical rigid tube 16. The water at the target depth in the first rigid tube 10 can enter the detection box 2 through the T-shaped hole 32 and the vertical rigid tube 16.

[0021] like Figure 3 , Figure 4 , Figure 5 and Figure 6 As shown, the connections between the first rigid pipe 10 and the spherical shell 12, the second rigid pipe 17 and the spherical shell 12, and the spherical shell 12 and the vertical rigid pipe 16 are located on the same vertical plane, and the rotating sleeve 34 is perpendicular to the vertical rigid pipe 16. The advantage of this arrangement is that when the eccentric column 27 rotates, it will drive the rotating shaft 28 and the rotating ball 31 to rotate. The rotation of the rotating ball 31 causes the T-shaped hole 32 to rotate 90 degrees clockwise, thereby connecting the first rigid pipe 10 and the vertical rigid pipe 16. Water at the target depth in the first rigid pipe 10 can enter the detection box 2 through the T-shaped hole 32 and the vertical rigid pipe 16. When the eccentric column 27 returns to its original position, the positions of the first rigid pipe 10, the T-shaped hole 32, and the second rigid pipe 17 correspond.

[0022] like Figure 2 As shown, the sealing mechanism includes an electric telescopic rod 14. A connecting rod 13 is fixedly installed at the output end of the electric telescopic rod 14. Two sealing blocks 15 are fixedly installed on the top of the connecting rod 13. The area of ​​the sealing blocks 15 is larger than the area of ​​the water outlet 19. A rubber pad is provided on the top of the sealing blocks 15, and the rubber pad is in a deformed state. The rubber pad can improve the sealing performance. The tops of the two sealing blocks 15 abut against the bottoms of the buffer tank 11 and the detection tank 2, respectively. The positions of the two sealing blocks 15 correspond to the positions of the two water outlets 19. Activating the electric telescopic rod 14 will move the connecting rod 13 and the two sealing blocks 15, separating the positions of the two sealing blocks 15 from the positions of the two water outlets 19, so that the water in the detection tank 2 and the buffer tank 11 can be discharged.

[0023] like Figure 5 As shown, a sealing ring 33 is installed between the inner wall of the rotating sleeve 34 and the outer side of the rotating shaft 28. The sealing ring 33 can seal the outer side of the rotating shaft 28 and the inner wall of the rotating sleeve 34.

[0024] like Figure 1 As shown, the pumping mechanism includes a motor 3 fixedly installed on the side of one of the vertical plates 4. A connecting pipe 38 is fixedly sleeved on the output shaft of the motor 3. Two baffles 39 are fixedly sleeved on the connecting pipe 38. A connected hose 9 is fixedly installed on the side of the connecting pipe 38. A round hole 40 is opened on the top of the bottom plate 5 and the foam float 6. The end of the hose 9 away from the vertical plate 4 is wound around the connecting pipe 38 multiple times and passes through the two round holes 40 and is fixedly installed with a connected weighted filter head 7. A water pump 8 is fixedly installed on the side of the other vertical plate 4. The outlet of the water pump 8 is connected to the bottom end of the first rigid pipe 10. One end of the sealing pipe 41 is fixedly installed at the inlet of the water pump 8. The other end of the sealing pipe 41 is rotatably installed inside the connecting pipe 38. A sealing ring is provided between the connecting pipe 38 and the sealing pipe 41. The sealing ring is used to seal the connecting pipe 38 and the sealing pipe 41. By starting the motor 3, the connecting pipe 38 can be rotated, thereby releasing the hose 9. The weighted filter head 7 has a certain weight and can move downwards to reach the depth to be detected.

[0025] Working principle: When in use, the foam float 6 allows the device to float on the water surface. When testing is required, starting the motor 3 will rotate the connecting pipe 38, thereby releasing the hose 9. The weighted filter head 7 has a certain weight and can move downwards to reach the depth required for testing. During extraction, since the weighted filter head 7 can be filled with water, water will directly enter the weighted filter head 7 during its descent. Therefore, water will be present on the hose 9 below the liquid surface and on the weighted filter head 7 before extraction. This water is from other depths that were initially entered, not the target depth. At this time, by starting the water pump 8, water can be drawn in through the weighted filter head 7 and hose 9, and enter the water pump 8 through the connecting pipe 38. Then, it enters the T-shaped hole 32 and the second hard pipe 17 through the first hard pipe 10 and enters the buffer tank 11. The water will squeeze the piston 20, causing the piston 20 to move upward. The movement of the piston 20 will drive the rectangular rod 22 to move upward. At the same time, the two vertical springs 21 will deform, allowing water from other depths to be drawn into the buffer tank 11. After a period of extraction, the first rigid tube 10 and the flexible tube 9 are filled with water at the target depth. At this point, the insertion rod 23 corresponds to the slot 26. Due to the deformation of the horizontal spring 24, the limiting block 25 and the insertion rod 23 move under the force of the horizontal spring 24, and the insertion rod 23 enters the slot 26. At the same time, the movement of the insertion rod 23 drives the lower L-shaped plate 18 and the upper L-shaped plate 30 to move. The movement of the lower L-shaped plate 18 causes the connecting rod 13 to contact the bottom end of the lower L-shaped plate 18, and the movement of the upper L-shaped plate 30 causes... The inner wall of the vertical extrusion hole 29 extrudes the eccentric column 27, causing the eccentric column 27 to rotate. The eccentric column 27 drives the rotating shaft 28 and the rotating ball 31 to rotate. The rotation of the rotating ball 31 causes the T-shaped hole 32 to rotate 90 degrees clockwise, thereby connecting the first rigid pipe 10 and the vertical rigid pipe 16. Water at the target depth in the first rigid pipe 10 can enter the detection box 2 through the T-shaped hole 32 and the vertical rigid pipe 16. After a certain amount of water enters, the water pump 8 is turned off, and then the water quality can be detected through the detection end of the water quality detector 1. After the test is completed, the electric telescopic rod 14 is activated, driving the connecting rod 13 to disengage the two sealing blocks 15 from the water outlet 19, allowing the water in the test chamber 2 and the buffer chamber 11 to be discharged. At the same time, the connecting rod 13 moves and presses the bottom end of the lower L-shaped plate 18 to move it. The movement of the lower L-shaped plate 18 causes the insertion rod 23 to move out of the slot 26. Under the action of the two vertical springs 21, the piston 20 moves downward to return to its original state. At the same time, the movement of the lower L-shaped plate 18 causes the upper L-shaped plate 30 to move, thereby allowing the eccentric column 27 to return to its original state. This ensures that the next time the test is conducted, water will be pumped into the buffer chamber 11 first, ensuring that the water pumped into the test chamber 2 is always at the required depth, thus improving the accuracy of the test.

[0026] Finally, it should be noted that the above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A floating aquaculture water quality detection device, characterized in that: Includes a base plate (5), on which a foam float (6) is fixedly installed. On the top of the base plate (5) are a detection box (2) and a buffer box (11) respectively fixedly installed via two upright plates (4). On the top of the detection box (2) is a water quality tester (1), and the detection end of the water quality tester (1) extends into the detection box (2). A spherical shell (12) is provided above the detection box (2). A vertical rigid pipe (16) is connected to the side of the spherical shell (12) and the detection box (2) that are close to each other. A first rigid pipe (10) and a second rigid pipe (17) are respectively installed on both sides of the spherical shell (12). The bottom end of the second rigid pipe (17) is connected to the bottom of the buffer box (11). A pumping mechanism is installed at the bottom end of the first rigid pipe (10). Both the buffer box (11) and the detection box (2) have water outlet holes (19) on their bottom inner walls. The bottom of the detection box (2) is fixedly equipped with a sealing mechanism for sealing the two water outlet holes (19). A piston (20) is slidably mounted on the annular inner wall of the buffer box (11). The top of the piston (20) is fixedly connected to the top inner wall of the buffer box (11) by two vertical springs (21). A rotating ball (31) is rotatably mounted inside the spherical shell (12). A T-shaped hole (32) is provided on the rotating ball (31). Two holes of the T-shaped hole (32) correspond to the positions of the first hard tube (10) and the second hard tube (17) respectively. The remaining hole of the T-shaped hole (32) is set facing upward. A switching mechanism for switching the rotating ball (31) is installed on the side of the spherical shell (12). The switching mechanism is installed in conjunction with the sealing mechanism and the piston (20).

2. The floating aquaculture water quality testing device according to claim 1, characterized in that: The switching mechanism includes a rectangular rod (22), a rectangular hole (35) is provided on the top of the buffer box (11), the top end of the rectangular rod (22) extends to the outside of the rectangular hole (35), a slot (26) is provided on the side of the rectangular rod (22), two guide rods (37) are fixedly installed on the annular side of the buffer box (11), a lower L-shaped plate (18) is slidably sleeved on the two guide rods (37), a plug rod (23) is fixedly installed on the side of the lower L-shaped plate (18), a through hole (36) is provided on the inner wall of the buffer box (11), one end of the plug rod (23) passes through the through hole (36) and abuts against the side of the rectangular rod (22), the position of the plug rod (23) corresponds to the position of the slot (26), a limit block (25) is fixedly installed on the top of the plug rod (23), and the side of the limit block (25) is fixedly connected to the inner wall of the buffer box (11) by a horizontal spring (24).

3. The floating aquaculture water quality testing device according to claim 2, characterized in that: The switching mechanism also includes an upper L-shaped plate (30) fixedly installed at the top of the lower L-shaped plate (18). The upper L-shaped plate (30) has a vertical extrusion hole (29) on its side. A rotating sleeve (34) is fixedly installed on the side of the spherical shell (12). A rotating shaft (28) is rotatably installed inside the rotating sleeve (34). One end of the rotating shaft (28) is fixedly connected to the side of the rotating ball (31). The other end of the rotating shaft (28) extends to the outside of the rotating sleeve (34) and is fixedly installed with an eccentrically set eccentric column (27). One end of the eccentric column (27) passes through the vertical extrusion hole (29).

4. The floating aquaculture water quality testing device according to claim 3, characterized in that: The connection between the first rigid tube (10) and the spherical shell (12), the connection between the second rigid tube (17) and the spherical shell (12), and the connection between the spherical shell (12) and the vertical rigid tube (16) are located on the same vertical plane, and the rotating sleeve (34) is set perpendicular to the vertical rigid tube (16).

5. The floating aquaculture water quality testing device according to claim 1, characterized in that: The sealing mechanism includes an electric telescopic rod (14), and a connecting rod (13) is fixedly installed at the output end of the electric telescopic rod (14). Two sealing blocks (15) are fixedly installed on the top of the connecting rod (13). The tops of the two sealing blocks (15) abut against the bottoms of the buffer box (11) and the detection box (2), respectively. The two sealing blocks (15) correspond to the positions of the two water outlets (19), respectively.

6. The floating aquaculture water quality testing device according to claim 3, characterized in that: A sealing ring (33) is installed between the inner wall of the rotating sleeve (34) and the outer side of the rotating shaft (28).

7. The floating aquaculture water quality testing device according to claim 1, characterized in that: The pumping mechanism includes a motor (3) fixedly installed on the side of one of the vertical plates (4). A connecting pipe (38) is fixedly sleeved on the output shaft of the motor (3). Two baffles (39) are fixedly sleeved on the connecting pipe (38). A connected hose (9) is fixedly installed on the side of the connecting pipe (38). A round hole (40) is opened on the top of the bottom plate (5) and the foam float (6). The end of the hose (9) away from the vertical plate (4) is wound around the connecting pipe (38) multiple times and passes through the two round holes (40) and is fixedly installed with a connected weighted filter head (7). A water pump (8) is fixedly installed on the side of the other vertical plate (4). The outlet of the water pump (8) is connected to the bottom end of the first hard pipe (10). One end of a sealing pipe (41) is fixedly installed at the inlet of the water pump (8). The other end of the sealing pipe (41) is rotatably installed inside the connecting pipe (38).

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