Wetland water environment monitoring and sampling device

Abstract

The invention discloses a wetland water environment monitoring and sampling device which comprises a supporting frame, a floating assembly connected to the supporting frame and a sampling assembly arranged on the lower surface of the supporting frame. The sampling assembly comprises a sampling barrel for sampling, and a water inlet hole is formed in the sampling barrel; the water stirring piece is arranged on the surface of the sampling barrel; the water stirring piece comprises a mounting ring and a water stirring plate arranged on the mounting ring; at least two notches are formed in the mounting ring, and the number of the water stirring plates is the same as that of the notches; the water stirring plate is rotationally mounted in the notch, and the water stirring plate is tightly attached to the sampling barrel in a normal state and covers and seals the water inlet hole; a driving piece is further arranged on the sampling barrel, and the driving piece plays a role in driving the mounting ring to move up and down; the mounting ring descends to drive the water stirring plate to change from the vertical state to the transverse state, and the mounting ring ascends to drive the water stirring plate to change from the transverse state to the vertical state. The effect of preventing the aquatic plants from blocking the water inlet holes is achieved.

Description

Technical Field

[0001] The present invention relates to the field of environmental monitoring, in particular to a wetland water environment monitoring sampling device. Background Art

[0002] With the continuous protection of wetland ecological environment, the monitoring of wetland water quality has gradually become more important. Usually, by testing the water quality of wetlands, it is possible to effectively determine whether the current water area meets environmental protection standards and facilitate the assessment of the ecological environment of the wetlands.

[0003] Due to the particularity of the wetland environment, there are generally more aquatic plants in waters. During the sampling process, because the water inlet on the sampling device is narrow and there are more phytoplankton among the aquatic plants in the waters, it is easy to cause blockage of the water inlet on the sampling device, affecting the sampling work. Summary of the Invention

[0004] The wetland water environment monitoring sampling device provided in this application adopts the following technical solution:

[0005] A wetland water environment monitoring sampling device comprises a support frame, a floating assembly connected to the support frame, and a sampling assembly arranged on the lower surface of the support frame;

[0006] The sampling assembly includes a sampling cylinder for sampling, and a water inlet hole is opened on the sampling cylinder;

[0007] and a water-diverting member provided on the surface of the sampling tube, which is used to divert the water body to drive away the surrounding floating plants;

[0008] The water diverter includes a mounting ring and a water diverter plate arranged on the mounting ring;

[0009] There are at least two notches on the mounting ring, and the number of the water deflector plates is the same as the number of the notches;

[0010] The water deflector is rotatably installed in the notch. In normal state, the water deflector is tightly fitted on the sampling tube and covers and seals the water inlet hole.

[0011] The sampling tube is also provided with a driving member, which drives the mounting ring to move up and down;

[0012] The mounting ring is lowered to drive the water-stripping plate from a vertical state to a horizontal state, and the mounting ring is raised to drive the water-stripping plate from a horizontal state to a vertical state.

[0013] By adopting the above technical solution, the water in the sampling water area can be stirred by the water-diverting member, thereby forming a flowing water flow in the surrounding water area. The flowing water flow can drive the floating plants, so that the plants will not move toward the sampling tube as the water sample enters the sampling tube, thereby preventing the plants from clogging the water inlet hole on the sampling tube. When the sampling tube enters the water area, the water-diverting plate fits on the sampling tube. On the one hand, it prevents the water-diverting plate from entraining aquatic plants in this process. On the other hand, it can also seal the water inlet hole, so that the sampling tube will not take samples if it does not reach the sampling depth, thereby achieving accurate sampling.

[0014] Optionally, a transverse axis is fixedly connected to both sides of one end of the deflector plate located at the notch, and an end of the transverse axis away from the deflector plate is rotatably connected to the inner wall of the notch, so that the transverse axis rotates along its own axis;

[0015] An accommodating groove is provided on the end of the water deflector plate located in the notch, and a rotating roller is fixedly installed in the accommodating groove. The rotating roller and the horizontal axis are coaxially arranged;

[0016] A plurality of grooves are provided on the surface of the sampling tube within the range of the vertical movement of the mounting ring. The grooves are annular and concentric with the sampling tube.

[0017] Multiple grooves are evenly arranged up and down;

[0018] A plurality of long strip-shaped protrusions are fixedly connected to the circumference of the rotating roller, the length direction of the protrusions is the same as the axis direction of the rotating roller, and the plurality of protrusions are evenly distributed around the axis of the rotating roller;

[0019] The projection can enter the groove.

[0020] By adopting the above technical solution, the cooperation of the groove and the protrusion can enable the rotating roller to rotate forward or reverse during the up and down movement of the movable ring. Then, by moving the mounting ring up and down, the water-diverting plate can be driven to move toward or away from the sampling tube, which is convenient and quick.

[0021] Optionally, an impeller is provided at the lower end of the sampling tube, the impeller is capable of self-rotation, and the maximum diameter of the impeller is larger than the diameter of the cylindrical shape formed by the water deflector.

[0022] By adopting the above technical solution, the impeller can break up the plants on the surface of the water area, so that when the sampling device enters the water area, the sampling device itself will not be entangled by the plants.

[0023] Optionally, the impeller is composed of a plurality of blades, and the transverse cross-section of each blade is blade-shaped.

[0024] By adopting the above technical solution, the blade-shaped blades can better break the plants and the breaking efficiency is higher.

[0025] Optionally, a conical guide portion is provided between the impeller and the end of the sampling tube, and the end of the guide portion with a smaller diameter is provided close to the impeller.

[0026] By adopting the above technical solution, the guide part is an inclined surface, which can prevent the broken plants from staying on the lower surface of the sampling tube, so that the broken plants can float to the surface of the water area without affecting the sampling work.

[0027] Optionally, the support frame includes a rectangular frame, a mounting platform is provided at the center of the frame, and the mounting platform is fixedly connected to the frame through four support rods;

[0028] A vertical center column is provided in the sampling tube, a transmission shaft is passed through the center column, and the lower end of the transmission shaft passes through the center of the guide part and the impeller and is fixedly installed;

[0029] The mounting platform is provided with a motor capable of driving the transmission shaft to rotate.

[0030] By adopting the above technical solution, the mounting platform can be made more stable, and the sampling assembly can be installed more conveniently. The central column can facilitate the operation of the transmission shaft and will not interfere with the interior of the sampling tube.

[0031] Optionally, a plurality of water baffles are provided below the frame, the water baffles are installed vertically, and the surfaces of the water baffles below adjacent side walls of the rectangular frame are arranged perpendicular to each other.

[0032] By adopting the above technical solution, the rotation of the water-deflecting plate will generate thrust in the water, which in turn causes the sampling device to be subjected to a reverse force, resulting in displacement of the sampling device. The water-deflecting plates in different directions can exert two vertical reverse forces on the water, which in turn offset the power generated by the water-deflecting plate, so that the sampling device will not move easily.

[0033] Optionally, the interior of the sampling tube is divided into at least three layers of storage space, and the storage space is distributed up and down, and the side wall of the sampling tube has multiple groups of water inlet holes, and the number of groups of water inlet holes is the same as the number of storage spaces;

[0034] The water inlet holes of each group are evenly distributed around the axis of the sampling tube, and the number of water inlet holes is the same as the number of water diverter plates;

[0035] When the water deflector plate is attached to the sampling tube, the water inlet hole is covered and sealed.

[0036] By adopting the above technical solution, the sampling cylinder with multi-layer storage space can sample water samples at different depths, thereby being able to complete multiple samplings simultaneously and to monitor water quality more accurately.

[0037] Optionally, the number of the water-diverting members is the same as the number of the storage spaces, that is, a water-diverting member is provided on the outside of each storage space.

[0038] By adopting the above technical solution, multiple water-diverting parts can prevent the water-diverting plate from being too long, thereby not causing greater water flow to be stirred in the water area, and avoiding affecting the accuracy of sampling.

[0039] Optionally, the driving member includes at least two connecting rods, which are vertically arranged and parallel to the axis of the sampling cylinder;

[0040] The connecting rod vertically passes through the mounting rings in all the water diverting parts, and the upper end of the connecting rod is fixedly connected to the uppermost mounting ring;

[0041] A vertical rod is inserted into the lower end of the connecting rod, and the upper end of the vertical rod extends into the interior of the connecting rod and is fixedly connected to a baffle. The vertical rod can move up and down in the connecting rod;

[0042] The lower end of the vertical rod is fixedly connected with a moving ring, which is also sleeved on the outside of the sampling tube, and the moving ring and the outer wall of the sampling tube are threadedly connected;

[0043] The lower surface of the movable ring is fixedly connected with at least two guide rods, the lower ends of the guide rods are inserted with transverse plates, the transverse plates are fixedly connected to the surface of the guide portion, and the lower ends of the guide rods can pass through the transverse plates.

[0044] By adopting the above technical solution, the driving member can synchronously drive the impeller and the water-displacing member, simplifying the power structure and facilitating maintenance. Furthermore, because the connecting rod and the vertical rod can be extended and retracted, the water-displacing member does not immediately rotate with the impeller; there is a certain time difference. Therefore, during the insertion of the sampling device, the water-displacing plate in the water-displacing member does not open, maintaining a seal on the water inlet and improving sampling accuracy. Furthermore, during the insertion of the sampling device, the water-displacing plate does not open and rotate, thereby preventing the broken plants from floating up.

[0045] In summary, this application has the following benefits:

[0046] 1. The sampling tube has multiple layers of storage space inside, so that the sampling tube can sample water samples at different heights during the sampling process, thereby completing sampling at different depths and improving the accuracy of sampling;

[0047] 2. The water-diverting plate in the water-diverting part can be opened and fitted on the side wall of the sampling tube. When the water-diverting plate is fitted, the water inlet hole can be sealed. Moreover, because the driving part can drive the impeller and the water-diverting plate in a time-sharing manner, when the sampling device enters the water area, the water-diverting plate will not open and rotate. The water-diverting plate will seal the water inlet hole, thereby ensuring the accuracy of sampling and not affecting the floating of broken plants. BRIEF DESCRIPTION OF THE DRAWINGS

[0048] Figure 1 Schematic diagram of the overall structure of the sampling device in the embodiment.

[0049] Figure 2 It is a cross-sectional view highlighting the storage space in the embodiment.

[0050] Figure 3 It is a cross-sectional view highlighting the internal structure of the sampling device in the embodiment.

[0051] Figure 4 2 is a schematic diagram highlighting the water-repellent component in the embodiment.

[0052] Figure 5 yes Figure 4 Enlarged view of part B in the middle.

[0053] Figure 6 yes Figure 3 Enlarged view of part A in the middle.

[0054] Figure 7 yes Figure 4 Enlarged view of part C in the middle.

[0055] Figure 8 It is a schematic diagram highlighting the coordination relationship between the linkage rod and the vertical rod in the embodiment.

[0056] Description of reference numerals:

[0057] 1. Support frame; 11. Frame; 12. Mounting platform; 13. Support rod; 14. Water baffle; 2. Floating assembly; 21. Floating ball; 22. Connecting plate; 3. Sampling assembly; 31. Sampling tube; 311. Water inlet; 32. Impeller; 33. Partition; 34. Storage space; 35. Water outlet; 36. Vacuum plug; 4. Water diverter; 41. Mounting ring; 411. Groove; 42. Water diverter; 43. Notch; 44. Accommodation groove; 45. Rotating roller; 451. Protrusion; 46. Horizontal axis; 5. Driving member; 51. Center column; 52. Transmission shaft; 53. Motor; 54. Diversion part; 55. Moving ring; 551. Guide rod; 552. Horizontal plate; 56. Vertical rod; 561. Baffle; 57. Connecting rod; 571. Round hole; 572. Baffle ring. DETAILED DESCRIPTION

[0058] The present application embodiment discloses a wetland water environment monitoring sampling device. Figure 1 The sampling device includes a support frame 1, a floating component 2 arranged on the support frame 1, and a sampling component 3; the support frame 1 serves to support the sampling component 3, and the floating component 2 mainly serves to provide buoyancy, enabling the sampling device to stay on the water surface.

[0059] The support assembly 1 includes a rectangular frame 11 and a mounting platform 12 located at the center of the frame 11. The mounting platform 12 is connected to the frame 11 through at least four support rods 13; the four support rods 13 are evenly distributed around the mounting platform 12, thereby ensuring the stability of the connection between the mounting platform 12 and the frame 11; the mounting platform 12 is the installation base of the sampling assembly 3.

[0060] The lower surfaces of the four side walls of the frame 11 are all fixedly connected with vertically arranged water baffles 14, and the thickness directions of adjacent water baffles 14 are perpendicular to each other, and the lower ends of the water baffles 14 are pointed. The water baffles 14 can penetrate deep into the water area, and the water baffles 14 arranged in different directions can block water in two directions, thereby preventing the sampling device from moving arbitrarily in the water area. In addition, the water baffles 14 arranged at the pointed end can better insert the water baffles 14 into the water area.

[0061] The floating assembly 2 includes at least four floating balls 21, which are evenly distributed around the frame 11 and connected to the frame 11 through a connecting plate 22. The floating balls 21 can provide sufficient buoyancy to enable the sampling device to float in the water.

[0062] The sampling assembly 3 includes a sampling barrel 31 and an impeller 32 provided at the lower end of the sampling barrel 31; the sampling barrel 31 is cylindrical and penetrates deep into the water area for sampling, while the impeller 32 can rotate, so before the sampling barrel 31 is inserted, the plants floating on the surface of the water area can be removed to avoid the influence of aquatic plants on the sampling.

[0063] Reference Figure 2 The sampling barrel 31 is internally provided with at least two partitions 33, which divide the barrel 31 into multiple vertically distributed storage spaces 34. The sidewalls of the sampling barrel 31 are provided with at least three groups of water inlet holes 311. The number of water inlet holes 311 is the same as the number of storage spaces 34, and each group of water inlet holes 311 contains at least three water inlet holes 311. During sampling, the sampling barrel is immersed in the water, with the storage spaces located at different heights within the water, allowing for sampling of water at different depths.

[0064] Reference Figure 1 and Figure 2 The sampling tube 31 is also provided with a water-diverting part 4, which can cause the water area around the sampling tube 31 to fluctuate. One function is to divert plants in the water area to avoid clogging the water inlet 311, and the other is to drive the water area to flow, making sampling more convenient.

[0065] Reference Figure 3 and Figure 4The number of water-diverting parts 4 is the same as the number of storage spaces 34, and the water-diverting parts 4 can close the water inlet 311, so that when the sampling tube 31 is inserted into the water area, the water sample will not enter the storage space 34 in advance, so that the storage spaces 34 at different heights can accurately sample water samples at different depths.

[0066] Reference Figure 4 and Figure 5 The water-diverting member 4 includes a mounting ring 41 and at least three water-diverting plates 42 provided on the mounting ring 41. The number of the water-diverting plates 42 is the same as the number of the water inlet holes 311 in each group. The mounting ring 41 is sleeved on the outer wall of the sampling tube 31, and the mounting ring 41 can move up and down outside the side wall of the sampling tube 31. Under normal conditions, the water-diverting plates 42 are tightly fitted on the outer wall of the sampling tube 31, and at the same time cover and seal the water inlet holes 311, so that the water sample will not enter the storage space 34 through the water inlet holes 311 in advance. When the mounting ring 41 moves downward, it also rotates, and the end of the water-dispensing plate 42 away from the mounting ring 41 moves away from the water inlet 311. When the end of the water-dispensing plate 42 opens again, the water-dispensing plate 42 rotates along with the mounting ring 41. The water-dispensing plate 42 then acts to displace water and no longer seals the water inlet 311. At this point, water samples of different depths enter different storage spaces 34, completing the sampling process. After sampling is completed, the mounting ring 41 moves upward, causing the water-dispensing plate 42 to reattach to the outer wall of the sampling tube 31, resealing the water inlet 311 and preventing the water sample from flowing out.

[0067] The mounting ring 41 is provided with at least three notches 43, the number of which is the same as the number of the deflector plates 42. The upper end of the deflector plates 42 extends into the notches 43, and a receiving groove 44 is provided at the upper end of the deflector plates 42. A rotating roller 45 is installed in the receiving groove 44. A transverse axis 46 is fixedly connected to the side wall of the deflector plate 42. The transverse axis 46 and the rotating roller 45 are coaxially arranged. The end of the transverse axis 46 away from the deflector plate 42 is rotatably connected to the side wall of the notch 43, so that the rotating roller 45 can rotate along its own axis.

[0068] Reference Figure 5 and Figure 6The sidewall of the sampling tube 31 within the vertical movement range of the mounting ring 41 is provided with multiple annular grooves 411. The grooves 411 coincide with the axis of the sampling tube 31 and are evenly distributed vertically. A plurality of strip-shaped protrusions 451 are fixedly connected to the circumference of the rotating roller 45. The length of the protrusions 451 is aligned with the axis of the rotating roller 45. The protrusions 451 are evenly distributed around the axis of the rotating roller 45 and can enter the grooves 411. Therefore, the rotating roller 45 and the multiple grooves 411 form a meshing state of gear teeth. The vertical movement of the mounting ring 41 drives the rotating roller 45 to rotate, which in turn drives the water deflector 42 to swing along the axis of the rotating roller 45. This allows the water deflector 42 to move away from or toward the sidewall of the sampling tube 31.

[0069] Reference Figure 1 The outer wall of the sampling tube 3 is further provided with at least three water outlets 35. The number of the water outlets 35 is the same as the number of the storage spaces 34, and each water outlet 35 is corresponding to the storage space 34. The water outlets 35 are plugged with vacuum plugs 36. After sampling is completed, the vacuum plugs 36 can be removed and the water sample can flow out of the water outlets 35. After the water sample flows out, the vacuum plugs 36 are plugged in. The vacuum plugs 36 can be connected to a vacuum pump to evacuate the storage space 34, making it easier for the water sample to enter during sampling.

[0070] Reference Figure 1 and Figure 4 The sampling tube 3 is also provided with a driving member 5, which is used to drive the mounting ring 41 to move up and down and rotate, thereby driving the water-repelling component to work.

[0071] Reference Figure 3The driving member 5 includes a central column 51 provided at the axis of the sampling tube 31 and a transmission shaft 52 passed through the central column 51. The upper end of the transmission shaft 52 protrudes from the mounting platform 12. A motor 53 for driving the transmission shaft 52 to rotate is installed on the mounting platform 12. The output shaft of the motor 53 is coaxially connected to the transmission shaft 52. The lower end of the transmission shaft 52 protrudes from the lower end of the sampling tube 31, and the lower end of the transmission shaft 52 is coaxially fixedly connected with a conical guide part 54. The end with a larger diameter of the guide part 54 is the same as the outer diameter of the sampling tube 31, and the end with a larger diameter of the guide part 54 is close to the sampling tube 31. The transmission shaft 52 can drive the guide part 54 to rotate together, and the impeller 32 is installed at the end with a smaller diameter of the guide part 54, so that the impeller 32 can rotate accordingly. As the sampling barrel 31 descends, the impeller 32 also rotates. The rotation of the impeller 32 crushes the plants brought in by the sampling barrel 31, facilitating the floating of the crushed plants. This prevents the plants from remaining at the end of the sampling barrel 31, where they could be dislodged when the water diverter 4 diverts the water, potentially clogging the water inlet 311. The diverter 54 provides a better guiding effect. The blades of the impeller 32 are all blade-shaped in cross-section, making it easier to crush the plants.

[0072] Reference Figure 4 and Figure 7 The driving member 5 also includes a moving ring 55 that is sleeved on the sampling tube 31. The moving ring 55 and the outer wall of the sampling tube 31 are threadedly engaged, so that the forward and reverse rotation of the moving ring 55 can achieve up and down movement on the sampling tube 31. At least two evenly distributed guide rods 551 are fixedly connected to the lower surface of the moving ring 55. The guide rods 551 are arranged vertically. The lower ends of the guide rods 551 are provided with a horizontal plate 552 fixed to the guide part 54. The lower ends of the guide rods 551 are inserted into the horizontal plate 552, and the guide rods 551 can pass through the horizontal plate 552. The guide rods 551 can move up and down, and the horizontal plate 552 will not interfere with the movement of the guide rods 551. Therefore, the rotation of the guide part 54 can drive the rotation of the moving ring 55 without interfering with the up and down movement of the moving ring 55.

[0073] Reference Figure 4 and Figure 8 At least two evenly distributed vertical rods 56 are fixedly connected to the upper surface of the movable ring 55. The vertical rods 56 are vertically arranged. A connecting rod 57 is sleeved on the upper end of the vertical rod 56. The upper end of the connecting rod 57 extends upward through the mounting ring 41 and is fixedly connected to the topmost mounting ring 41. The rotation of the movable ring 55 can drive all the mounting rings 41 to rotate.

[0074] The lower end of the linkage rod 57 defines a circular hole 571, into which the upper end of the vertical rod 56 extends. A baffle 561 is fixedly connected to the upper end of the vertical rod 56, and a baffle ring 572 is fixedly connected to the opening of the circular hole 571. The vertical rod 56 is capable of moving up and down within the circular hole 571. When the vertical rod 56 moves downward, only when the baffle 561 and baffle ring 572 abut against each other can the vertical rod 56 drive the linkage rod 57 to move downward. Therefore, when the movable ring 55 begins to move downward, it does not immediately drive the mounting ring 41 downward. Only after a certain distance has passed does the mounting ring 41 begin to move downward with it. This allows the driving member 5 to drive the impeller 32 to rotate when the sampling tube 31 is initially inserted into the water, without immediately driving the water-repelling member 4 to move synchronously. This allows the water-repelling plate 42 to cover and seal the water inlet 311 during the insertion of the sampling tube 31.

[0075] A torsion spring (not shown) is interposed between the horizontal axis 46 and the sidewall of the notch 43. When the deflector plate 42 moves upward, away from the sidewall of the sampling tube 31, the torsion spring accumulates force, which drives the horizontal axis 46 in the opposite direction. To ensure that the deflector plate 42 maintains its rotation during the sampling process, the movable ring 55 moves downward until the movable ring 55 and the sampling tube 31 are no longer threaded together. After sampling is completed, to ensure that the deflector plate 42 can be reattached to the sampling tube 31, the mounting ring 41 moves upward. Because the connecting rod 57 and the vertical rod 56 are capable of relative motion, additional power is required to reset the deflector plate 42. The torsion spring provides this additional power. At the same time, the motor 53 also needs to be reversed to prevent the mounting ring 41 from moving upward, driving the movable ring 55 to move upward, and re-establishing the matching relationship between the movable ring 55 and the sampling tube 31, thereby generating a reverse force to ensure that the water-deflecting plate 42 can be re-attached to the surface of the sampling tube 31 and re-seal the water inlet 311.

[0076] The above are all preferred embodiments of the present application, and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.

Claims

1. A wetland water environment monitoring and sampling device, comprising a support frame (1) and a floating assembly (2) connected to the support frame (1), characterized in that: It also includes a sampling assembly (3) arranged on the lower surface of the support frame (1); The sampling assembly (3) includes a sampling cylinder (31) for sampling, and a water inlet (311) is provided on the sampling cylinder (31); and a water-diverting member (4) provided on the surface of the sampling tube (31), the water-diverting member (4) being used to divert the water body to achieve the purpose of driving away the surrounding floating plants; The water-diverting member (4) comprises a mounting ring (41) and a water-diverting plate (42) arranged on the mounting ring (41); The mounting ring (41) is provided with at least two notches (43), and the number of the water-spraying plates (42) is the same as the number of the notches (43); The water-diverting plate (42) is rotatably mounted in the notch (43). In a normal state, the water-diverting plate (42) is tightly fitted on the sampling tube (31) and covers and seals the water inlet (311). The sampling tube (31) is also provided with a driving member (5), which plays the role of driving the mounting ring (41) to move up and down; The mounting ring (41) is lowered to drive the water-dispelling plate (42) from a vertical state to a horizontal state, and the mounting ring (41) is raised to drive the water-dispelling plate (42) from a horizontal state to a vertical state.

2. A wetland water environment monitoring sampling device according to claim 1, characterized in that: The water-deflecting plate (42) is located at one end of the notch (43) and is fixedly connected to a transverse shaft (46) on both sides. The end of the transverse shaft (46) away from the water-deflecting plate (42) is rotatably connected to the inner wall of the notch (43), so that the transverse shaft (46) rotates along its own axis. A receiving groove (44) is provided on the end of the water-diverting plate (42) located in one end of the notch (43), a rotating roller (45) is fixedly installed in the receiving groove (44), and the rotating roller (45) and the horizontal axis (46) are coaxially arranged; A plurality of grooves (411) are provided on the surface of the sampling cylinder (31) within the range of the vertical movement of the mounting ring (41), and the grooves (411) are annular and concentrically arranged with the sampling cylinder (31); A plurality of grooves (411) are evenly arranged vertically; A plurality of long strip-shaped protrusions (451) are fixedly connected to the circumference of the rotating roller (45), the length direction of the protrusions (451) is the same as the axis direction of the rotating roller (45), and the plurality of protrusions (451) are evenly distributed around the axis of the rotating roller (45); The protrusion (451) is able to enter the groove (411).

3. A wetland water environment monitoring sampling device according to claim 1, characterized in that: The lower end of the sampling tube (31) is provided with an impeller (32), which is capable of self-rotation, and the maximum diameter of the impeller (32) is larger than the diameter of the cylindrical shape formed by the water-dispensing plate (42) clinging to the side wall of the sampling tube (31).

4. A wetland water environment monitoring sampling device according to claim 3, characterized in that: The impeller (32) is composed of a plurality of blades, and the transverse cross section of each blade is in the shape of a knife edge.

5. A wetland water environment monitoring sampling device according to claim 3, characterized in that: A conical flow guide (54) is provided between the impeller (32) and the end of the sampling tube (31), and the end of the flow guide (54) with a smaller diameter is arranged close to the impeller (32).

6. A wetland water environment monitoring sampling device according to claim 5, characterized in that: The support frame (1) comprises a rectangular frame (11), a mounting platform (12) is provided at the center of the frame (11), and the mounting platform (12) is fixedly connected to the frame (11) through four support rods (13); A vertical center column (51) is provided in the sampling tube (31), a transmission shaft (52) is passed through the center column (51), and the lower end of the transmission shaft (52) passes through the guide portion (54) and the center of the impeller (32) and is fixedly installed; An electric motor (53) capable of driving the transmission shaft (52) to rotate is provided on the mounting platform (12).

7. A wetland water environment monitoring sampling device according to claim 6, characterized in that: A plurality of water baffles (14) are provided below the frame (11). The water baffles (14) are installed vertically, and the surfaces of the water baffles (14) below adjacent side walls of the rectangular frame (11) are arranged perpendicular to each other.

8. The wetland water environment monitoring sampling device according to claim 1, characterized in that: The interior of the sampling cylinder (31) is divided into at least three layers of storage spaces (34), and the storage spaces (34) are distributed up and down. The side wall of the sampling cylinder (31) is provided with multiple groups of water inlet holes (311), and the number of groups of water inlet holes (311) is the same as the number of storage spaces (34); The water inlet holes (311) of each group are evenly distributed around the axis of the sampling tube (31), and the number of the water inlet holes (311) is the same as the number of the water deflector plates (42); When the water-diverting plate (42) is attached to the sampling tube (31), the water inlet hole (311) is covered and sealed.

9. A wetland water environment monitoring sampling device according to claim 8, characterized in that: The number of the water-diverting components (4) is the same as the number of the storage spaces (34), that is, a water-diverting component (4) is provided on the outside of each storage space (34).

10. A wetland water environment monitoring sampling device according to claim 9, characterized in that: The driving member (5) includes at least two connecting rods (57), and the connecting rods (57) are vertically arranged and parallel to the axis of the sampling cylinder (31); The connecting rod (57) vertically passes through the mounting rings (41) in all the water diverting members (4), and the upper end of the connecting rod (57) is fixedly connected to the uppermost mounting ring (41); A vertical rod (56) is inserted into the lower end of the connecting rod (57), and the upper end of the vertical rod (56) extends into the interior of the connecting rod (57) and is fixedly connected to a baffle (561), so that the vertical rod (56) can move up and down in the connecting rod (57); The lower end of the vertical rod (56) is fixedly connected to a movable ring (55), which is also sleeved on the outer side of the sampling tube (31), and the movable ring (55) and the outer wall of the sampling tube (31) are threadedly connected; At least two guide rods (551) are fixedly connected to the lower surface of the movable ring (55), and a horizontal plate (552) is inserted through the lower end of the guide rod (551). The horizontal plate (552) is fixedly connected to the surface of the guide portion, and the lower end of the guide rod (551) can pass through the horizontal plate (552).

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