A sampling device for environmental toxicology testing and methods of use thereof

Abstract

The application relates to the technical field of environment detection, and discloses an environment toxicology detection sampling device and a use method thereof, which comprises a fixing frame, the bottom of the fixing frame is fixedly connected with a large water pipe, when the environment toxicology detection sampling device is used, sampling errors may exist, an electric telescopic rod drives a sliding rod one to move through a fixed plate one, the sliding rod one drives a circular plate to move while moving, a conical telescopic rod one on the circular plate pushes a circular porous plate to slide on the sliding rod one, under the action of the conical telescopic rod one, water reflux through the holes of the circular porous plate is prevented, because half of the inside of the large water pipe is in a vacuum state, water is sucked into the inside of the large water pipe through a water suction pipe, the electric telescopic rod moves back and forth, under the action of a limiting block, the circular porous plate is pushed and reset to the original position, water is continuously pumped out, because the water suction pipe has different lengths, water of different depths is sucked, and the detection accuracy is improved.

Description

Technical Field

[0001] This invention relates to the field of environmental testing equipment technology, specifically to a sampling device for environmental toxicology testing and its usage method. Background Technology

[0002] With environmental issues attracting more attention, obtaining representative samples accurately in environmental toxicology testing is becoming increasingly crucial. Traditional sampling methods have limitations when dealing with complex environmental media, such as water and soil sampling, which is difficult to be accurate and comprehensive, and is not adaptable to various harsh environments. They are prone to sample bias and secondary pollution, and lack automation, continuity and remote monitoring capabilities in large-scale or long-term monitoring tasks.

[0003] When sampling rivers, the composition varies at different depths. If a single sampling device is used, the sample taken is difficult to represent the standard of the river, leading to significant errors in subsequent testing. To address these issues, the following solutions are proposed. Summary of the Invention

[0004] To solve the above technical problems, the present invention provides a sampling device for environmental toxicology testing, including a fixed frame, a large water pipe fixedly connected to the bottom of the fixed frame, an outlet pipe connected to the outlet of the large water pipe, four suction pipes of different lengths connected to the bottom of the large water pipe, a rectangular fixed plate fixedly connected between the suction pipes, and a water level block fixedly connected to the right outer wall of the large water pipe.

[0005] The pumping mechanism includes an electric telescopic rod fixedly connected to the top of the fixed frame. A fixed plate is fixedly connected to the left side of the electric telescopic rod. A circular plate is slidably connected to the inner wall of the large water pipe. A circular perforated plate is slidably connected to the inner wall of the large water pipe. A sliding rod is fixedly connected to the left side of the circular plate. The sliding rod slides through the circular perforated plate and the outer left wall of the large water pipe. The sliding rod is fixedly connected to the fixed plate. A limit block is fixedly connected to the side of the fixed plate near the circular perforated plate. Under the action of the limit block, the circular perforated plate is pushed and reset to its original position.

[0006] The cleaning mechanism includes a filter screen fixedly connected to the bottom of the suction pipe. A T-shaped groove is formed on the outer wall of the bottom of the suction pipe. A hexagonal bracket is rotatably connected to the inner wall of the T-shaped groove. Each edge of the hexagonal bracket has a fan blade fixedly connected to its outer wall. A sliding cleaning component is fixedly connected to the bottom of the hexagonal bracket. Under the impact of the water flow on the fan blades, the hexagonal bracket is driven to rotate on the inner wall of the T-shaped groove. As the hexagonal bracket contacts the filter screen, the surface of the filter screen is cleaned while the hexagonal bracket rotates, preventing the filter screen from being blocked and reducing the sampling efficiency.

[0007] Preferably, the pumping mechanism further includes several conical telescopic rods fixedly connected to the outer wall of the left side of the circular plate. The several conical telescopic rods correspond to the holes of the circular perforated plate, and springs are sleeved on the outer walls of the several conical telescopic rods.

[0008] Preferably, the pumping mechanism further includes a conical telescopic rod two fixedly connected to the central axis of the right side of the circular perforated plate. The conical telescopic rod two corresponds to the hole at the central axis of the circular plate. A spring two is sleeved on the outer wall of the conical telescopic rod two. A sealing assembly is fixedly connected to the right side of the circular plate. The electric telescopic rod drives the sliding rod one to move through the fixed plate one. While the sliding rod one moves, it drives the circular plate to move. The conical telescopic rod one on the circular plate pushes the circular perforated plate to slide on the sliding rod one. Under the action of the conical telescopic rod one, the phenomenon of water backflow through the holes of the circular perforated plate is prevented. Because half of the inside of the large water pipe is in a vacuum state, water is sucked into the large water pipe through the suction pipe. While the circular perforated plate moves, water flows into the sealed tank through the outlet pipe. The electric telescopic rod moves back and forth, and under the action of the limiting block, the circular perforated plate is pushed back to its original position, thus performing repeated movements to continuously pump out water. Because of the different lengths of the suction pipe, water at different depths is sucked in, thereby improving the accuracy of detection.

[0009] Preferably, the sealing component includes an arc-shaped groove formed at the bottom of the large water pipe, and a second sliding rod is fixedly connected to the right outer wall of the circular plate, the second sliding rod sliding through the right outer wall of the large water pipe.

[0010] Preferably, the sealing assembly further includes a fixing block 1 fixedly connected to the outer wall of the slide rod 2, and the right side of the slide rod 2 is fixedly connected to the fixing block 2.

[0011] Preferably, the sealing assembly further includes a fixed plate two slidably connected to the outer wall of the slide rod two. The fixed plate two is located between the fixed block one and the fixed block two. An arc-shaped plate is fixedly connected to the left side of the fixed plate two. The arc-shaped plate is slidably connected to the arc-shaped groove. When the circular plate moves, it drives the slide rod two to move on the fixed plate two. When the fixed plate two contacts the fixed block two, under the action of the fixed block two, the fixed block two pushes the arc-shaped plate to slide in the arc-shaped groove through the fixed plate two, so that the left side of the circular plate and the arc-shaped plate are misaligned. When the circular plate moves to the second suction pipe, the arc-shaped plate will block the first suction pipe, and so on, so that only one suction pipe can be sucked when pumping water. When the circular plate moves back, under the action of the fixed block one, it drives the arc-shaped plate to move, thereby releasing the blockage of each suction pipe. In this way, water is repeatedly pumped out, improving the sampling efficiency and preventing the sampling from only one suction pipe, which would lead to a decrease in the accuracy of the test results.

[0012] Preferably, the sliding cleaning component includes a bidirectional threaded rod fixedly connected to the central axis of the hexagonal bracket, the bidirectional threaded rod extending to the top of the suction pipe, and a trapezoidal groove formed on the inner wall of the suction pipe.

[0013] Preferably, the sliding cleaning assembly further includes a cleaning block disposed on the outer wall of the bidirectional threaded rod, the outer wall of the cleaning block being slidably connected to the water suction pipe and the trapezoidal groove, and a circular hole being provided on the inner wall of the cleaning block.

[0014] Preferably, the sliding cleaning assembly further includes a rotating shaft rotatably connected to the inner wall of the circular hole. The side of the rotating shaft away from the circular hole is fixedly connected to a threaded block. The threaded block is slidably connected to the threads on the bidirectional threaded rod. When the hexagonal bracket rotates, it drives the bidirectional threaded rod to rotate. While the bidirectional threaded rod rotates, the cleaning block moves along the grooves on the bidirectional threaded rod via the threaded block on the rotating shaft, thereby driving the cleaning block to move within the trapezoidal groove, thus cleaning the inner wall of the suction pipe. When the threaded block moves to the top, it moves downward via the threads in another direction, thus cleaning the inner wall of the suction pipe back and forth, preventing the mixing of different samples during the next sampling from reducing the test results and improving the accuracy of the test.

[0015] A method for using a sampling device for environmental toxicology testing includes the following steps:

[0016] S1: Place the device in water;

[0017] S2: Fixing device;

[0018] S3: Starting device.

[0019] The present invention has the following beneficial effects:

[0020] 1. In the environmental toxicology testing sampling device of the present invention, sampling errors may occur during use. The electric telescopic rod moves the sliding rod through the fixed plate, and the sliding rod moves the circular plate simultaneously. The conical telescopic rod on the circular plate pushes the circular perforated plate to slide on the sliding rod. Under the action of the conical telescopic rod, backflow of water through the holes of the circular perforated plate is prevented. Because half of the inside of the large water pipe is in a vacuum state, water is drawn into the large water pipe through the suction pipe. While the circular perforated plate moves, water flows into the sealed tank through the outlet pipe. The electric telescopic rod moves back and forth, and under the action of the limiting block, the circular perforated plate is pushed back to its original position, thus repeating the movement to continuously extract water. Due to the different lengths of the suction pipe, water at different depths is drawn, thereby improving the accuracy of the test.

[0021] 2. This invention utilizes the force of the moving circular plate. Simultaneously, the circular plate moves, causing the sliding rod two to move on the fixed plate two. When the fixed plate two contacts the fixed block two, under the action of the fixed block two, the fixed block two pushes the arc-shaped plate to slide within the arc-shaped groove, causing the left side of the circular plate and the arc-shaped plate to be misaligned. When the circular plate moves to the second suction pipe, the arc-shaped plate blocks the first suction pipe, and so on, ensuring that only one suction pipe can be drawn during pumping. When the circular plate moves back, the fixed block one causes the arc-shaped plate to move, thereby releasing the blockage of each suction pipe and repeatedly pumping out water, improving sampling efficiency and preventing the reduction in the accuracy of the test results caused by only drawing from one suction pipe during sampling.

[0022] 3. This invention utilizes the dynamic force of water flow. During the pumping process, some substances in the water may clog the filter screen. The impact force of the water flow on the fan blades drives the hexagonal bracket to rotate on the inner wall of the T-shaped groove. As the hexagonal bracket contacts the filter screen, the surface of the filter screen is cleaned while the hexagonal bracket rotates, preventing the filter screen from being clogged and reducing the sampling efficiency.

[0023] 4. This invention utilizes the rotational force of a hexagonal bracket. Simultaneously, the rotation of the hexagonal bracket drives the bidirectional threaded rod to rotate. While the bidirectional threaded rod rotates, the cleaning block moves along the grooves on the bidirectional threaded rod via a threaded block on a rotating shaft, thus moving the cleaning block within a trapezoidal groove to clean the inner wall of the suction pipe. When the threaded block reaches the top, it moves downwards via another thread, cleaning the inner wall of the suction pipe back and forth. This prevents the mixing of different samples during subsequent sampling, which could lower the test results and improve the accuracy of the test. Attached Figure Description

[0024] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0025] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0026] Figure 2 This is a cross-sectional schematic diagram of the overall structure of the present invention;

[0027] Figure 3 This is a cross-sectional schematic diagram of the pumping mechanism of the present invention;

[0028] Figure 4 For the present invention Figure 3 Enlarged diagram of A in the middle;

[0029] Figure 5 For the present invention Figure 3 Enlarged diagram of B in the diagram;

[0030] Figure 6 This is a cross-sectional schematic diagram of the cleaning mechanism of the present invention;

[0031] Figure 7 For the present invention Figure 6 Enlarged diagram of C in the middle;

[0032] Figure 8 This is a cross-sectional schematic diagram of the cleaning block of the present invention;

[0033] Figure 9 This is a schematic diagram of the workflow of the present invention.

[0034] The attached diagram lists the components represented by each number as follows:

[0035] In the diagram: 1. Fixing frame; 11. Main water pipe; 12. Outlet pipe; 13. Suction pipe; 14. Rectangular fixing plate; 15. Water level block; 2. Pumping mechanism; 21. Electric telescopic rod; 22. Fixing plate one; 23. Circular plate; 24. Circular perforated plate; 25. Sliding rod one; 26. Limiting block; 27. Conical telescopic rod one; 28. Spring one; 29. ​​Conical telescopic rod two; 210. Spring two; 3. Cleaning 31. Filter screen; 32. T-shaped chute; 33. Hexagonal bracket; 34. Fan blade; 4. Sealing assembly; 41. Arc-shaped chute; 42. Slide rod two; 43. Fixing block one; 44. Fixing block two; 45. Fixing plate two; 46. Arc plate; 5. Sliding cleaning assembly; 51. Bidirectional threaded rod; 52. Trapezoidal chute; 53. Cleaning block; 54. Circular hole; 55. Rotating shaft; 56. Threaded block. Detailed Implementation

[0036] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0037] Example 1, please refer to Figure 1 - Figure 4The present invention is a sampling device for environmental toxicology testing, including a fixed frame 1, a large water pipe 11 fixedly connected to the bottom of the fixed frame 1, an outlet pipe 12 connected to the outlet of the large water pipe 11, four suction pipes 13 of different lengths connected to the bottom of the large water pipe 11, a rectangular fixed plate 14 fixedly connected between the suction pipes 13, and a water level block 15 fixedly connected to the outer right side of the large water pipe 11.

[0038] The pumping mechanism 2 includes an electric telescopic rod 21 fixedly connected to the top of the fixed frame 1. A fixed plate 22 is fixedly connected to the left side of the electric telescopic rod 21. A circular plate 23 is slidably connected to the inner wall of the large water pipe 11. A circular perforated plate 24 is slidably connected to the inner wall of the large water pipe 11. A sliding rod 25 is fixedly connected to the left side of the circular plate 23. The sliding rod 25 slides through the circular perforated plate 24 and the outer left side of the large water pipe 11. The sliding rod 25 is fixedly connected to the fixed plate 22. A limiting block 26 is fixedly connected to the side of the fixed plate 22 near the circular perforated plate 24. Under the action of the limiting block 26, the circular perforated plate 24 is pushed and reset to its original position.

[0039] The cleaning mechanism 3 includes a filter screen 31 fixedly connected to the bottom of the suction pipe 13. A T-shaped groove 32 is provided on the outer wall of the bottom of the suction pipe 13. A hexagonal bracket 33 is rotatably connected to the inner wall of the T-shaped groove 32. A fan blade 34 is fixedly connected to the outer wall of each edge of the hexagonal bracket 33. A sliding cleaning component 5 is fixedly connected to the bottom of the hexagonal bracket 33. Under the impact of the water flow on the fan blade 34, the hexagonal bracket 33 is driven to rotate on the inner wall of the T-shaped groove 32. Because the hexagonal bracket 33 is in contact with the filter screen 31, the surface of the filter screen 31 is cleaned while the hexagonal bracket 33 is rotating, preventing the filter screen 31 from being blocked and reducing the sampling efficiency.

[0040] The pumping mechanism 2 also includes several tapered telescopic rods 27 fixedly connected to the outer left wall of the circular plate 23. The tapered telescopic rods 27 correspond to the holes of the circular perforated plate 24. Springs 28 are sleeved on the outer walls of the tapered telescopic rods 27.

[0041] The pumping mechanism 2 also includes a tapered telescopic rod 29 fixedly connected to the central axis on the right side of the circular perforated plate 24. The tapered telescopic rod 29 corresponds to the hole on the central axis of the circular plate 23. A spring 210 is sleeved on the outer wall of the tapered telescopic rod 29. A sealing assembly 4 is fixedly connected to the right side of the circular plate 23. The electric telescopic rod 21 drives the sliding rod 25 to move through the fixed plate 22. While the sliding rod 25 is moving, it also drives the circular plate 23 to move. The tapered telescopic rod 27 on the circular plate 23 pushes the circular perforated plate 24 to slide on the sliding rod 25. Under the action of the tapered telescopic rod 27... To prevent water from flowing back through the holes of the circular perforated plate 24, half of the interior of the large water pipe 11 is in a vacuum state. Water is then drawn into the large water pipe 11 through the suction pipe 13. As the circular perforated plate 24 moves, water flows into the sealed tank through the outlet pipe 12. The electric telescopic rod 21 moves back and forth, and under the action of the limit block 26, the circular perforated plate 24 is pushed back to its original position. This repeated movement continuously draws out water. Due to the different lengths of the suction pipe 13, water at different depths is drawn, thereby improving the accuracy of the detection.

[0042] Example 2, please refer to Figure 5 - Figure 9 The present invention is a sampling device for environmental toxicology testing. Based on Example 1, the sealing component 4 includes an arc-shaped groove 41 opened at the bottom of the large water pipe 11, and a sliding rod 42 is fixedly connected to the outer right side of the circular plate 23. The sliding rod 42 slides through the outer right side of the large water pipe 11.

[0043] The sealing assembly 4 also includes a fixing block 43 fixedly connected to the outer wall of the slide bar 42, and a fixing block 44 fixedly connected to the right side of the slide bar 42.

[0044] The sealing assembly 4 also includes a fixing plate 45 slidably connected to the outer wall of the sliding rod 42. The fixing plate 45 is located between the fixing block 43 and the fixing block 44. An arc-shaped plate 46 is fixedly connected to the left side of the fixing plate 45. The arc-shaped plate 46 is slidably connected to the arc-shaped groove 41. When the circular plate 23 moves, it drives the sliding rod 42 to move on the fixing plate 45. When the fixing plate 45 contacts the fixing block 44, under the action of the fixing block 44, the fixing block 44 pushes the arc-shaped plate 46 to slide in the arc-shaped groove 41 through the fixing plate 45. This causes the left side of the circular plate 23 and the arc plate 46 to be misaligned. When the circular plate 23 moves to the second suction pipe 13, the arc plate 46 will block the first suction pipe 13, and so on. This ensures that only one suction pipe 13 can be sucked during pumping. When the circular plate 23 moves back, the arc plate 46 moves under the action of the fixing block 43, thereby releasing the blockage of each suction pipe 13. This process is repeated to pump out water, improving sampling efficiency and preventing the sampling from only one suction pipe 13, which would reduce the accuracy of the test results.

[0045] The sliding cleaning component 5 includes a bidirectional threaded rod 51 fixedly connected to the central axis of the hexagonal bracket 33. The bidirectional threaded rod 51 extends to the top of the water suction pipe 13, and a trapezoidal groove 52 is provided on the inner wall of the water suction pipe 13.

[0046] The sliding cleaning assembly 5 also includes a cleaning block 53 disposed on the outer wall of the bidirectional threaded rod 51. The outer wall of the cleaning block 53 is slidably connected to the water suction pipe 13 and the trapezoidal slide groove 52. A circular hole 54 is provided on the inner wall of the cleaning block 53.

[0047] The sliding cleaning assembly 5 also includes a rotating shaft 55 rotatably connected to the inner wall of the circular hole 54. The side of the rotating shaft 55 away from the circular hole 54 is fixedly connected to a threaded block 56. The threaded block 56 is slidably connected to the threads on the bidirectional threaded rod 51. When the hexagonal bracket 33 rotates, it drives the bidirectional threaded rod 51 to rotate. While the bidirectional threaded rod 51 rotates, the cleaning block 53 moves along the grooves on the bidirectional threaded rod 51 through the threaded block 56 on the rotating shaft 55, thereby driving the cleaning block 53 to move within the trapezoidal slide groove 52, thus cleaning the inner wall of the suction pipe 13. When the threaded block 56 moves to the top, it moves downward through the threads in another direction, thus cleaning the inner wall of the suction pipe 13 back and forth, preventing the mixing of different samples during the next sampling from reducing the test results and improving the accuracy of the test.

[0048] The method of using this sampling device for environmental toxicology testing includes the following steps:

[0049] S1: Place the device in water;

[0050] S2: Fixing device;

[0051] S3: Starting device.

[0052] A specific application of this embodiment is as follows: In use, the device is fixed in the water by the fixing frame 1, so that the water level is maintained below the water level block 15. Water enters the large water pipe 11 through the suction pipes 13 of different lengths, so that the water level is maintained at half of the large water pipe 11. The electric telescopic rod 21 is activated. The electric telescopic rod 21 drives the sliding rod 25 to move through the fixing plate 22. While the sliding rod 25 is moving, it also drives the circular plate 23 to move. The conical telescopic rod 27 on the circular plate 23 pushes the circular perforated plate 24 to slide on the sliding rod 25. Under the action of the conical telescopic rod 27, water flow is prevented. Backflow occurs through the holes of the circular perforated plate 24 because half of the inside of the large water pipe 11 is in a vacuum state. Water is then drawn into the large water pipe 11 through the suction pipe 13. As the circular perforated plate 24 moves, water flows into the sealed tank through the outlet pipe 12. The electric telescopic rod 21 moves back and forth, and under the action of the limit block 26, the circular perforated plate 24 is pushed back to its original position. This repeated movement continuously draws out water. Due to the different lengths of the suction pipe 13, water at different depths is drawn, thereby improving the accuracy of the detection.

[0053] As the circular plate 23 moves, it drives the sliding rod 42 to move on the fixed plate 45. When the fixed plate 45 contacts the fixed block 44, the fixed block 44 pushes the arc plate 46 to slide in the arc groove 41 through the fixed plate 45, causing the circular plate 23 and the left side of the arc plate 46 to be misaligned. When the circular plate 23 moves to the second suction pipe 13, the arc plate 46 will block the first suction pipe 13, and so on, so that only one suction pipe 13 can be sucked during water pumping. When the circular plate 23 moves back, the fixed block 43 drives the arc plate 46 to move, thereby releasing the blockage of each suction pipe 13. This process is repeated to pump out water, improving the sampling efficiency and preventing the sampling from only one suction pipe 13, which would reduce the accuracy of the test results.

[0054] During the pumping process, some substances in the water may clog the filter screen 31. The impact of the water flow on the fan blades 34 causes the hexagonal bracket 33 to rotate on the inner wall of the T-shaped groove 32. As the hexagonal bracket 33 comes into contact with the filter screen 31, the surface of the filter screen 31 is cleaned while the hexagonal bracket 33 rotates, preventing the filter screen 31 from becoming clogged and reducing the sampling efficiency.

[0055] As the hexagonal bracket 33 rotates, it drives the bidirectional threaded rod 51 to rotate as well. While the bidirectional threaded rod 51 rotates, the cleaning block 53 moves along the grooves on the bidirectional threaded rod 51 via the threaded block 56 on the rotating shaft 55, thereby moving the cleaning block 53 within the trapezoidal groove 52 to clean the inner wall of the suction pipe 13. When the threaded block 56 reaches the top, it moves downwards via the thread in another direction, thus cleaning the inner wall of the suction pipe 13 back and forth. This prevents the mixing of different samples during the next sampling, which could lead to a decrease in the test results and improve the accuracy of the test.

[0056] The preferred embodiments of the present invention disclosed above are merely illustrative of the invention. These preferred embodiments do not exhaustively describe all details, nor do they limit the invention to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of the invention, thereby enabling those skilled in the art to better understand and utilize the invention. The invention is limited only by the claims and their full scope and equivalents.

Claims

1. A sampling device for environmental toxicology testing, comprising a fixed frame (1), a large water pipe (11) fixedly connected to the bottom of the fixed frame (1), an outlet pipe (12) connected to the outlet of the large water pipe (11), four suction pipes (13) of different lengths connected to the bottom of the large water pipe (11), a rectangular fixing plate (14) fixedly connected between several of the suction pipes (13), and a water level block (15) fixedly connected to the right outer wall of the large water pipe (11), characterized in that, Also includes: The pumping mechanism (2) includes an electric telescopic rod (21) fixedly connected to the top of the fixed frame (1). A fixed plate (22) is fixedly connected to the left side of the electric telescopic rod (21). A circular plate (23) is slidably connected to the inner wall of the large water pipe (11). A circular perforated plate (24) is slidably connected to the inner wall of the large water pipe (11). A sliding rod (25) is fixedly connected to the left side of the circular plate (23). The sliding rod (25) slides through the circular perforated plate (24) and the outer left side of the large water pipe (11). The sliding rod (25) is fixedly connected to the fixed plate (22). A limit block (26) is fixedly connected to the side of the fixed plate (22) near the circular perforated plate (24). The cleaning mechanism (3) includes a filter screen (31) fixedly connected to the bottom of the suction pipe (13). A T-shaped groove (32) is provided on the bottom outer wall of the suction pipe (13). A hexagonal bracket (33) is rotatably connected to the inner wall of the T-shaped groove (32). A fan blade (34) is fixedly connected to the outer wall of each edge of the hexagonal bracket (33). A sliding cleaning component (5) is fixedly connected to the bottom of the hexagonal bracket (33). The pumping mechanism (2) also includes several tapered telescopic rods (27) fixedly connected to the outer wall of the left side of the circular plate (23). The tapered telescopic rods (27) correspond to the holes of the circular perforated plate (24). Springs (28) are sleeved on the outer wall of the tapered telescopic rods (27). The pumping mechanism (2) also includes a tapered telescopic rod (29) fixedly connected to the central axis on the right side of the circular perforated plate (24). The tapered telescopic rod (29) corresponds to the hole on the central axis of the circular plate (23). A spring (210) is sleeved on the outer wall of the tapered telescopic rod (29). A sealing assembly (4) is fixedly connected to the right side of the circular plate (23). The sealing assembly (4) includes an arc-shaped groove (41) opened at the bottom of the large water pipe (11), and a sliding rod (42) is fixedly connected to the outer right side of the circular plate (23). The sliding rod (42) slides through the outer right side of the large water pipe (11). The sealing assembly (4) also includes a fixing block (43) fixedly connected to the outer wall of the slide bar (42), and a fixing block (44) is fixedly connected to the right side of the slide bar (42). The sealing assembly (4) further includes a fixing plate (45) that is slidably connected to the outer wall of the slide bar (42). The fixing plate (45) is located between the fixing block (43) and the fixing block (44). An arc plate (46) is fixedly connected to the left side of the fixing plate (45). The arc plate (46) is slidably connected to the arc groove (41).

2. The sampling device for environmental toxicology detection according to claim 1, characterized in that: The sliding cleaning assembly (5) includes a bidirectional threaded rod (51) fixedly connected to the central axis of the hexagonal bracket (33), the bidirectional threaded rod (51) extending to the top of the suction pipe (13), and a trapezoidal groove (52) is provided on the inner wall of the suction pipe (13).

3. The sampling device for environmental toxicology detection according to claim 2, characterized in that: The sliding cleaning assembly (5) also includes a cleaning block (53) disposed on the outer wall of the bidirectional threaded rod (51). The outer wall of the cleaning block (53) is slidably connected to the water suction pipe (13) and the trapezoidal slide groove (52). A circular hole (54) is provided on the inner wall of the cleaning block (53).

4. The sampling device for environmental toxicology detection according to claim 3, characterized in that: The sliding cleaning assembly (5) also includes a rotating shaft (55) rotatably connected to the inner wall of the circular hole (54), the side of the rotating shaft (55) away from the circular hole (54) being fixedly connected to a threaded block (56), the threaded block (56) being threadedly slidably connected to the threaded rod (51).

5. A method of using an environmental toxicology testing sampling device, comprising the environmental toxicology testing sampling device as described in claim 4, characterized in that, Includes the following steps: S1: Place the device in water; S2: Fixing device; S3: Starting device.

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