Hydrology and water resource underground water automatic classification sampling device

Abstract

The invention relates to the technical field of water pollution detection, and provides a hydrology and water resource underground water automatic classification sampling device which comprises a main body mechanism, a rotating frame, a rotating disc, a liquid sampling pipe, an insoluble organic matter collecting part, a quantitative extrusion part, a driving module, a water pump and a control panel, the main body mechanism comprises a fixed pipe, a first sealing shell, a water tank, a second sealing shell, a liquid guide pipe and a second sealing shell, the insoluble organic matter collecting part sequentially comprises a first-stage filtering piece, a second-stage filtering piece and a third-stage filtering piece from top to bottom, and the rotating disc comprises a containing cavity and an inserting pipe head. On one hand, the first-stage filtering part, the second-stage filtering part and the third-stage filtering part can be used for collecting algae organic matters such as aquatic plants, particulate organic matters and suspended humus respectively; on the other hand, the driving module can be used for respectively controlling the rotating frame and the rotating disc to rotate, so that the purposes of sampling insoluble organic matters and sampling a plurality of times of aqueous solutions are achieved, and the sampling device has the characteristics of high sampling efficiency and high precision.

Description

Technical Field

[0001] The invention relates to the technical field of water pollution detection, and in particular to a hydrological and water resource groundwater automatic classification sampling device. Background Art

[0002] The common way to extract groundwater is to use water pumps and water pipes to directly extract it from wells. Since groundwater is the most important source of drinking water in residents' lives, environmental protection and pollutant detection of groundwater are top priorities.

[0003] Patent No. CN117848782B discloses a hydrological and water resources groundwater organic pollutant sample collection device, including a traction mechanism, a water pump, a float mechanism and a water suction cylinder, and the float mechanism includes a shell, a limit assembly and a clamping assembly. Through the set float mechanism, the float mechanism can first measure the height of the water surface in the monitoring well. After that, the first traction rope is fixed, and the second traction rope between the water pump and the shell is tightened. The distance between the shell and the water suction cylinder is adjusted by retracting and releasing the second traction rope, thereby adjusting the depth of water intake by the water suction cylinder to extract liquids at different depths. This solves the problem that when the existing sampling device takes groundwater at different depths, the device needs to be re-inserted into the groundwater each time it is taken, which is cumbersome, time-consuming, labor-intensive, and has low work efficiency.

[0004] Since organic pollution in water can be divided into soluble organic matter and insoluble organic matter, wherein soluble organic matter includes macromolecular humus, protein and other organic matter suspended or dissolved in water, and insoluble organic matter includes algae, biological particles and other organic matter that are insoluble in water, the above technical scheme cannot, on the one hand, classify and collect soluble organic matter and insoluble organic matter in the above water at the same time, and thus cannot fully grasp the specific data of organic pollutants in groundwater; on the other hand, it is impossible to automatically perform several aqueous solution samplings during one insoluble organic sampling. Summary of the invention

[0005] The purpose of the present invention is to provide a hydrological and water resources groundwater automatic classification sampling device, aiming to solve the problems existing in the use of existing hydrological and water resources groundwater organic pollutant sample collection devices.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a hydrological and water resources groundwater automatic classification sampling device, comprising a main body mechanism, a water pump and a control panel, the main body mechanism comprising a fixed pipe, a first sealed shell, a water tank, a liquid guide tube and a second sealed shell, the first sealed shell and the second sealed shell are both fixedly connected to the fixed pipe, the water pump is connected to the first sealed shell, a water tank is provided at the bottom of the first sealed shell, the liquid guide tube is fixedly connected between the water tank and the fixed pipe, a No. 1 one-way valve is provided on the surface of the fixed pipe, and further comprising: A turret located within the first sealed housing; An insoluble organic matter collecting part is located in the rotating frame, and the insoluble organic matter collecting part is composed of a primary filter element, a secondary filter element and a tertiary filter element from top to bottom; A rotating disk located in the second sealing shell, the rotating disk comprising a receiving cavity and a plug-in connector, a plurality of the receiving cavities are distributed on the surface of the rotating disk, one end of the receiving cavity is fixedly connected to a plug-in connector, and the No. 1 one-way valve is connected to one end of the plug-in connector; A liquid sampling tube is located in the accommodating cavity, and the other end of the plug-in tube connector is plug-connected with the liquid sampling tube; A quantitative extrusion part located in the fixed tube, the quantitative extrusion part is used to draw the liquid in the water tank into the fixed tube, and to discharge the liquid in the fixed tube into the liquid sampling tube; A driving module is fixedly connected to the bottom of the first sealing shell, and the rotating frame and the rotating disk are both drivingly connected to the driving module.

[0007] As a further solution of the present invention, the rotating frame includes a first rotating tube, a radial plate, a grille and a first transmission gear. The first transmission gear and several radial plates are fixedly connected to the first rotating tube. Several grilles are evenly spaced on both sides of the radial plate. The primary filter element, the secondary filter element and the tertiary filter element are respectively overlapped on the surface of the grille. The first rotating tube is movably sleeved on the surface of the fixed tube, and the radial plate is in sliding contact with the inner wall of the first sealing shell.

[0008] As a further solution of the present invention, the rotating disk further includes a second rotating tube and a second transmission gear, the rotating disk and the second transmission gear are both fixedly connected to the second rotating tube, and the second rotating tube is movably sleeved on the surface of the fixed tube.

[0009] As a further solution of the present invention, the driving module includes a driving motor, a driving rod, a driving gear, a magnetic ring, an electromagnet, a first return spring, a bracket and a limit block. The driving motor and the bracket are both fixedly connected to the first sealing shell, the driving motor is fixedly connected to one end of the driving rod, the limit block is fixedly connected to the other end of the driving rod, the driving gear is movably sleeved on the surface of the driving rod, the driving gear and the driving rod surfaces are respectively provided with a keyway and a key strip, the key strip is slidably connected to the keyway, the bracket and the driving gear surfaces are respectively inlaid with an electromagnet and a magnetic ring, the first return spring is connected between the bracket and the driving gear, and the first transmission gear and the second transmission gear are both transmission-connected to the driving gear.

[0010] As a further solution of the present invention, the quantitative extrusion part includes a longitudinal telescopic part, a piston and a No. 3 one-way valve. The longitudinal telescopic part is fixedly connected to the inner wall of the fixed tube, the piston is fixedly connected to the longitudinal telescopic part, the piston is in sliding contact with the inner wall of the fixed tube, the surface of the piston is provided with a No. 3 one-way valve, and the connection between the liquid guide tube and the fixed tube is provided with a No. 2 one-way valve.

[0011] As a further solution of the present invention, the rotating disk further comprises a pressing block and a second return spring, wherein the second return spring is connected between the pressing block and the accommodating cavity, and an end of the liquid sampling tube facing away from the plug connector contacts the surface of the pressing block.

[0012] As a further solution of the present invention, the main body structure also includes a top plate, a first sealing cover and a second sealing cover. The top plate is fixedly connected to the top of the fixed pipe, a first sealing cover is provided on the side of the first sealing shell facing away from the water tank, and a second sealing cover is provided on the surface of the second sealing shell.

[0013] As a further solution of the present invention, the water pump is fixedly connected to the top plate, the water pump is fixedly connected with a suction pipe and a drainage pipe, the drainage pipe is fixedly connected to the first sealing shell, a flow meter is fixedly connected to the surface of the suction pipe, and the liquid guide pipe and the drainage pipe are aligned up and down.

[0014] The beneficial effects of the present invention are as follows: under the premise of accurately controlling the water pump to discharge water quantitatively into the first sealing shell at a certain speed, on the one hand, the primary filter element, the secondary filter element and the tertiary filter element can be used to respectively collect algae organic matter such as aquatic plants, particulate organic matter and suspended humus, and the quantitative extrusion part can be controlled to quantitatively collect the filtered aqueous solution into the liquid sampling tube; on the other hand, the driving module can be used to respectively control the rotation of the rotating frame and the rotating disk to achieve the purpose of sampling insoluble organic matter and sampling several times of aqueous solution, and has the characteristics of high sampling efficiency and high precision. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is the first stereogram of the present invention.

[0016] Figure 2 It is an exploded view of the present invention.

[0017] Figure 3 It is a planar cross-sectional view of the main mechanism of an embodiment of the present invention.

[0018] Figure 4 It is a three-dimensional diagram of a driving module according to an embodiment of the present invention.

[0019] Figure 5 It is a schematic diagram of the installation of the rotating frame and the insoluble organic matter collecting part according to an embodiment of the present invention.

[0020] Figure 6 This is a schematic diagram of the installation of the liquid sampling tube and the containing chamber according to an embodiment of the present invention.

[0021] Figure 7 It is a second stereogram of the present invention.

[0022] Figure 8 It is a plan cross-sectional view of the present invention.

[0023] Figure numerals: 1-main body, 11-fixed pipe, 111-one-way valve No. 1, 12-first sealing shell, 13-water tank, 14-liquid guide tube, 141-one-way valve No. 2, 15-second sealing shell, 16-top plate, 17-first sealing cover, 18-second sealing cover, 2-water pump, 21-water pump, 22-drain pipe, 23-flow meter, 3-drive module, 31-drive motor, 32-drive rod, 33-drive gear, 331-magnetic ring, 34-electromagnet, 35-first return spring, 36-bracket, 37- Limit block, 4-rotating frame, 41-first rotating tube, 42-radial plate, 43-grid, 44-first transmission gear, 5-insoluble organic matter collection part, 51-primary filter element, 52-secondary filter element, 53-tertiary filter element, 6-rotating disk, 61-accommodating chamber, 62-pressing block, 63-second return spring, 64-plug-in connector, 65-second rotating tube, 66-second transmission gear, 7-liquid sampling tube, 8-quantitative extrusion part, 81-longitudinal telescopic member, 82-piston, 83-No. 3 one-way valve, 9-control panel. DETAILED DESCRIPTION

[0024] In order to make the purpose, technical solution and advantages of the present invention clearer, the present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0025] The specific implementation of the present invention is described in detail below in conjunction with specific embodiments.

[0026] See also Figures 1 to 8 In one embodiment of the present invention, a hydrological and water resources groundwater automatic classification sampling device includes a main body 1, a water pump 2 and a control panel 9, the main body 1 includes a fixed pipe 11, a first sealed shell 12, a water tank 13, a liquid guide tube 14 and a second sealed shell 15, the first sealed shell 12 and the second sealed shell 15 are both fixedly connected to the fixed pipe 11, the water pump 2 is communicated with the first sealed shell 12, the bottom of the first sealed shell 12 is provided with a water tank 13, the liquid guide tube 14 is fixedly connected between the water tank 13 and the fixed pipe 11, and the surface of the fixed pipe 11 is provided with a No. 1 one-way valve 111, and also includes: A rotating frame 4 located in the first sealed shell 12; An insoluble organic matter collecting part 5 is located in the rotating frame 4, and the insoluble organic matter collecting part 5 comprises a primary filter element 51, a secondary filter element 52 and a tertiary filter element 53 from top to bottom; The rotating disk 6 is located in the second sealing shell 15, and the rotating disk 6 includes a receiving cavity 61 and a plug-in connector 64. A plurality of the receiving cavities 61 are distributed on the surface of the rotating disk 6. One end of the receiving cavity 61 is fixedly connected to the plug-in connector 64, and the No. 1 check valve 111 is connected to one end of the plug-in connector 64. The liquid sampling tube 7 is located in the accommodating cavity 61, and the other end of the plug-in connector 64 is plugged and connected with the liquid sampling tube 7; A quantitative extrusion portion 8 located in the fixed tube 11, the quantitative extrusion portion 8 is used to draw the liquid in the water tank 13 into the fixed tube 11, and to discharge the liquid in the fixed tube 11 into the liquid sampling tube 7; The driving module 3 is fixedly connected to the bottom of the first sealed shell 12 , and the rotating frame 4 and the rotating disk 6 are both drivingly connected to the driving module 3 .

[0027] See also Figure 1 and Figure 6 Furthermore, the rotating disk 6 also includes a second rotating tube 65 and a second transmission gear 66. The rotating disk 6 and the second transmission gear 66 are both fixedly connected to the second rotating tube 65. The second rotating tube 65 is movably sleeved on the surface of the fixed tube 11.

[0028] See also Figure 8 Furthermore, the quantitative extrusion part 8 includes a longitudinal telescopic member 81, a piston 82 and a No. 3 one-way valve 83. The longitudinal telescopic member 81 is fixedly connected to the inner wall of the fixed tube 11, the piston 82 is fixedly connected to the longitudinal telescopic member 81, the piston 82 is in sliding contact with the inner wall of the fixed tube 11, the surface of the piston 82 is provided with a No. 3 one-way valve 83, and the connection between the liquid guide tube 14 and the fixed tube 11 is provided with a No. 2 one-way valve 141.

[0029] See also Figure 6 Furthermore, the rotating disk 6 also includes a pressing block 62 and a second return spring 63, and the second return spring 63 is connected between the pressing block 62 and the accommodating chamber 61. The end of the liquid sampling tube 7 away from the plug-in connector 64 contacts the surface of the pressing block 62. When placing the liquid sampling tube 7, hold the liquid sampling tube 7 so that one end thereof abuts against the pressing block 62, and then move the liquid sampling tube 7 toward the pressing block 62 until the liquid sampling tube 7 can horizontally enter the accommodating chamber 61 and then release it. The elastic force of the second return spring 63 squeezes and moves the liquid sampling tube 7 toward the plug-in connector 64 through the pressing block 62. Since the end of the liquid sampling tube 7 is a rubber plug structure, the plug-in connector 64 can be directly inserted into the liquid sampling tube 7 under pressure. Since the second rotating tube 65 is in contact with the surface of the fixed tube 11, when the plug-in connector 64 is not aligned with the No. 1 one-way valve 111, the inner wall of the second rotating tube 65 can seal the No. 1 one-way valve 111 to prevent leakage.

[0030] See also Figure 1 and Figure 3 Furthermore, the main body mechanism 1 also includes a top plate 16, a first sealing cover 17 and a second sealing cover 18. The top plate 16 is fixedly connected to the top of the fixed pipe 11. The first sealing cover 17 is provided on the side of the first sealing shell 12 away from the water tank 13. The second sealing cover 18 is provided on the surface of the second sealing shell 15. The specific connection structure of the first sealing cover 17 and the second sealing cover 18 is not limited and will not be described in detail.

[0031] See also Figure 1 and Figure 8 Furthermore, the water pump 2 is fixedly connected to the top plate 16, and is fixedly connected with a suction pipe 21 and a drainage pipe 22. The drainage pipe 22 is fixedly connected to the first sealing shell 12, and a flow meter 23 is fixedly connected to the surface of the suction pipe 21. The liquid guide tube 14 and the drainage pipe 22 are aligned up and down.

[0032] In the embodiment of the present invention, the control panel 9 not only monitors the water flow rate and water speed through the flow meter 23, so as to control the volume and flow rate of water pumped by the water pump 2, so as to control the drain pipe 22 to drain water into the first sealed shell 12 at a certain speed. It should be noted that the water flow rate or the volume of water discharged at a single time is greater than the volume of three liquid sampling tubes 7 and less than the volume of five liquid sampling tubes 7. It is also used to control the stroke of the longitudinal telescopic member 81, which is an electric telescopic rod or a cylinder. A timing module is also provided in the control panel 9, so that secondary sample collection can be automatically performed after a certain period of time.

[0033] See also Figure 5 and Figure 8 In one embodiment of the present invention, the rotating frame 4 includes a first rotating tube 41, a radial plate 42, a grille 43 and a first transmission gear 44. The first transmission gear 44 and a plurality of the radial plates 42 are fixedly connected to the first rotating tube 41. A plurality of grilles 43 are evenly spaced on both sides of the radial plate 42. The primary filter element 51, the secondary filter element 52 and the tertiary filter element 53 are overlapped on the surface of the grille 43 respectively. The first rotating tube 41 is movably sleeved on the surface of the fixed tube 11. The primary filter element 51 is a grid plate, the secondary filter element 52 is a filter screen, the mesh number of the filter screen is smaller than the mesh number of the grid plate, and the tertiary filter element 53 is a semipermeable membrane.

[0034] Furthermore, the driving module 3 includes a driving motor 31, a driving rod 32, a driving gear 33, a magnetic ring 331, an electromagnet 34, a first return spring 35, a bracket 36 and a limit block 37. The driving motor 31 and the bracket 36 are both fixedly connected to the first sealing shell 12, the driving motor 31 is fixedly connected to one end of the driving rod 32, the limit block 37 is fixedly connected to the other end of the driving rod 32, the driving gear 33 is movably sleeved on the surface of the driving rod 32, the surfaces of the driving gear 33 and the driving rod 32 are respectively provided with a keyway and a key strip, the key strip is slidably connected to the keyway, the surfaces of the bracket 36 and the driving gear 33 are respectively inlaid with an electromagnet 34 and a magnetic ring 331, the first return spring 35 is connected between the bracket 36 and the driving gear 33, and the first transmission gear 44 and the second transmission gear 66 are both transmission-connected to the driving gear 33.

[0035] In the embodiment of the present invention, when the control electromagnet 34 is powered off, the radial plate 42 is in sliding contact with the inner wall of the first sealing shell 12 to ensure the sealing during sampling and prevent the aqueous solution from entering the adjacent radial plate 42 or the insoluble organic matter collection part 5, thereby ensuring that the filtered aqueous solution can enter the water tank 13 to the maximum extent, thereby reducing the error of the liquid sampling tube 7 in collecting the aqueous solution. The downward elastic force of the first return spring 35 drives the drive gear 33 to move along the drive rod 32 to a position in contact with the limit block 37. At this time, the drive gear 33 is connected to the second transmission gear 66; when the control electromagnet 34 is powered on, the energized electromagnet 34 is magnetically attached to the magnetic ring 331. At this time, the drive gear 33 is connected to the first transmission gear 44.

[0036] Working principle: the water pump 2 discharges water into the first sealed shell 12 at a certain speed through the drain pipe 22, and the water flows from top to bottom through the primary filter element 51, the secondary filter element 52 and the tertiary filter element 53 in turn. The primary filter element 51 is used to filter and collect algae and other organic matter such as water plants, the secondary filter element 52 is used to filter and collect particulate organic matter, and the tertiary filter element 53 is used to filter and collect suspended humus. The filtered aqueous solution is concentrated in the water tank 13. The control panel 9 is used to control the longitudinal telescopic member 81 and the piston 82 to make a reciprocating motion of a certain stroke. The descending piston 82 is used to suck the aqueous solution in the water tank 13 into the fixed pipe 11 through the liquid guide tube 14 and the No. 1 one-way valve 111. At this time, the aqueous solution is distributed above the piston 82, and the ascending piston 82 is used to squeeze the upper aqueous solution into the fixed pipe 11 below the piston 82 through the No. 3 one-way valve 83. The piston 82 that descends again is used to discharge the aqueous solution into the liquid sampling tube 7 through the No. 2 one-way valve 141 and the plug-in connector 64. Considering the small volume of the liquid sampling tube 7 and the diversity of samples, the control electromagnet 34 is powered off, and the downward elastic force of the first return spring 35 drives the driving gear 33 to move along the driving rod 32 to a position in contact with the limit block 37. At this time, the driving gear 33 is connected to the second transmission gear 66, and the driving motor 31 is controlled to drive the driving rod 32 and the driving gear 33 to rotate. The rotating driving gear 33 drives the rotating disk 6 to rotate a certain angle with the fixed tube 11 as the axis through the second transmission gear 66 until the other plug-in connector 64 is connected to the No. 1 one-way valve 111 and stops. At this time, the piston 82 is controlled again to collect the aqueous solution into the liquid sampling tube 7 until the aqueous solution is completely collected into several liquid sampling tubes 7. When it is necessary to use the insoluble organic matter collecting part 5 for sampling again, the electromagnet 34 is controlled to be energized. The electromagnet 34 after being energized is magnetically attached to the magnetic ring 331. At this time, the driving gear 33 is connected to the first transmission gear 44. The driving motor 31 is used to control the rotating frame 4 to rotate a certain angle with the fixed pipe 11 as the axis until the insoluble organic matter collecting part 5 is distributed directly below the drain pipe 22 and stops. When it is necessary to take out the sample, the first sealing cover 17 and the second sealing cover 18 are opened respectively, and the primary filter element 51, the secondary filter element 52 and the tertiary filter element 53 overlapped on the surface of the grid 43 can be taken out in turn, and the liquid sampling tube 7 in the accommodating cavity 61 can also be pulled out from the plug connector 64 to take it out.

[0037] In summary, by utilizing the structural design in which the main body 1, the rotating frame 4, the insoluble organic matter collecting part 5, the rotating disk 6, the quantitative extrusion part 8 and the driving module 3 cooperate with each other, under the premise of accurately controlling the water pump 2 to discharge water quantitatively into the first sealing shell 12 at a certain speed, on the one hand, the primary filter element 51, the secondary filter element 52 and the tertiary filter element 53 can be used to respectively collect algae organic matter such as aquatic plants, particulate organic matter and suspended humus, and the quantitative extrusion part 8 can be controlled to quantitatively collect the filtered aqueous solution into the liquid sampling tube 7, and on the other hand, the driving module 3 can be used to respectively control the rotation of the rotating frame 4 and the rotating disk 6 to achieve the purpose of sampling insoluble organic matter and sampling several times of aqueous solution, and has the characteristics of high sampling efficiency and high precision.

[0038] For those skilled in the art, although several embodiments and examples of the present invention have been described, these embodiments and examples are provided as examples and are not intended to limit the scope of the invention. These new embodiments can be implemented in various other ways, and various omissions, substitutions, and changes can be made without departing from the scope of the main purpose of the invention.

[0039] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A hydrological and water resources groundwater automatic classification sampling device, comprising a main body (1), a water pump (2) and a control panel (9), characterized in that: The main body mechanism (1) comprises a fixed pipe (11), a first sealed shell (12), a water tank (13), a liquid guide tube (14) and a second sealed shell (15); the first sealed shell (12) and the second sealed shell (15) are both fixedly connected to the fixed pipe (11); the water pump (2) is communicated with the first sealed shell (12); a water tank (13) is provided at the bottom of the first sealed shell (12); the liquid guide tube (14) is fixedly connected between the water tank (13) and the fixed pipe (11); a first one-way valve (111) is provided on the surface of the fixed pipe (11); and further comprises: A rotating frame (4) located in the first sealed shell (12); An insoluble organic matter collecting part (5) located in the rotating frame (4), wherein the insoluble organic matter collecting part (5) comprises, from top to bottom, a primary filter element (51), a secondary filter element (52) and a tertiary filter element (53); A rotating disk (6) located in the second sealing shell (15), the rotating disk (6) comprising a receiving cavity (61) and a plug-in connector (64), a plurality of the receiving cavities (61) being distributed on the surface of the rotating disk (6), one end of the receiving cavity (61) being fixedly connected to the plug-in connector (64), and the No. 1 one-way valve (111) being in communication with one end of the plug-in connector (64); A liquid sampling tube (7) is located in the accommodating cavity (61), and the other end of the plug-in tube connector (64) is plugged and connected to the liquid sampling tube (7); a quantitative extrusion portion (8) located in the fixed tube (11), the quantitative extrusion portion (8) being used to draw liquid in the water tank (13) into the fixed tube (11), and being used to discharge the liquid in the fixed tube (11) into the liquid sampling tube (7); A driving module (3) is fixedly connected to the bottom of the first sealed shell (12), and the rotating frame (4) and the rotating disk (6) are both drivingly connected to the driving module (3).

2. The automatic classification sampling device for hydrology and water resources groundwater according to claim 1 is characterized in that: The rotating frame (4) comprises a first rotating tube (41), a radial plate (42), a grille (43) and a first transmission gear (44); the first transmission gear (44) and a plurality of the radial plates (42) are fixedly connected to the first rotating tube (41); a plurality of grilles (43) are evenly spaced on both sides of the radial plate (42); the primary filter element (51), the secondary filter element (52) and the tertiary filter element (53) are respectively overlapped on the surface of the grille (43); the first rotating tube (41) is movably sleeved on the surface of the fixed tube (11); and the radial plate (42) is in sliding contact with the inner wall of the first sealing shell (12).

3. The automatic classification sampling device for hydrology and water resources groundwater according to claim 2 is characterized in that: The rotating disk (6) further comprises a second rotating tube (65) and a second transmission gear (66). The rotating disk (6) and the second transmission gear (66) are both fixedly connected to the second rotating tube (65). The second rotating tube (65) is movably sleeved on the surface of the fixed tube (11).

4. The automatic classification sampling device for hydrology and water resources groundwater according to claim 3 is characterized in that: The driving module (3) comprises a driving motor (31), a driving rod (32), a driving gear (33), a magnetic ring (331), an electromagnet (34), a first return spring (35), a bracket (36) and a stop block (37); the driving motor (31) and the bracket (36) are both fixedly connected to the first sealing shell (12); the driving motor (31) is fixedly connected to one end of the driving rod (32); the stop block (37) is fixedly connected to the other end of the driving rod (32); and the driving gear (331) is fixedly connected to the first sealing shell (12). 3) a movable sleeve is arranged on the surface of the driving rod (32); the surfaces of the driving gear (33) and the driving rod (32) are respectively provided with a keyway and a key bar; the key bar is slidably connected to the keyway; the surfaces of the bracket (36) and the driving gear (33) are respectively inlaid with an electromagnet (34) and a magnetic ring (331); the first return spring (35) is connected between the bracket (36) and the driving gear (33); the first transmission gear (44) and the second transmission gear (66) are both transmission-connected to the driving gear (33).

5. The automatic classification sampling device for hydrology and water resources groundwater according to claim 4 is characterized in that: The quantitative extrusion part (8) comprises a longitudinal telescopic member (81), a piston (82) and a No. 3 one-way valve (83); the longitudinal telescopic member (81) is fixedly connected to the inner wall of the fixed tube (11); the piston (82) is fixedly connected to the longitudinal telescopic member (81); the piston (82) is in sliding contact with the inner wall of the fixed tube (11); the surface of the piston (82) is provided with a No. 3 one-way valve (83); and a No. 2 one-way valve (141) is provided at the connection between the liquid guide tube (14) and the fixed tube (11).

6. The automatic classification sampling device for hydrology and water resources groundwater according to claim 3 is characterized in that: The rotating disk (6) further comprises a pressing block (62) and a second return spring (63), wherein the second return spring (63) is connected between the pressing block (62) and the accommodating cavity (61), and an end of the liquid sampling tube (7) facing away from the plug connector (64) contacts the surface of the pressing block (62).

7. The automatic classification sampling device for hydrology and water resources groundwater according to claim 1 is characterized in that: The main body mechanism (1) further comprises a top plate (16), a first sealing cover (17) and a second sealing cover (18); the top plate (16) is fixedly connected to the top of the fixed pipe (11); the first sealing cover (17) is arranged on a side of the first sealing shell (12) facing away from the water tank (13); and the second sealing cover (18) is arranged on the surface of the second sealing shell (15).

8. The automatic classification sampling device for hydrology and water resources groundwater according to claim 7 is characterized in that: The water pump (2) is fixedly connected to the top plate (16); a water suction pipe (21) and a drainage pipe (22) are fixedly connected to the water pump (2); the drainage pipe (22) is fixedly connected to the first sealing shell (12); a flow meter (23) is fixedly connected to the surface of the water suction pipe (21); and the liquid guide pipe (14) and the drainage pipe (22) are aligned vertically.

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