A groundwater sample extraction device based on hydrological environment information mapping

Abstract

The present application relates to the technical field of groundwater sampling, and discloses a groundwater sample extraction device based on hydrological information surveying and mapping, which comprises a pump body, a water inlet pipe is arranged at the water inlet end of the pump body, a storage unit is arranged at the water outlet end of the pump body, and a monitoring unit is arranged at the end of the storage unit away from the pump body. The pump body is used to extract groundwater into a heat preservation tank, and then the groundwater in the heat preservation tank is used to exchange heat with a sample tank, so that the temperature of the sample tank is close to the temperature of the groundwater sample before the sample tank stores the groundwater sample. Meanwhile, a switching unit is used to collect the groundwater sample into the sample tank. At this time, the temperature change of the groundwater sample collected into the sample tank is small, so that the chemical reaction speed and the microbial growth speed in the collected groundwater sample change little, the authenticity and representativeness of the detection result of the groundwater sample are improved, and under the heat preservation effect of the heat preservation tank, the collected sample can be stored for a period of time, which is beneficial to the transportation and detection of the sample.

Description

Technical Field

[0001] This invention relates to the field of groundwater sampling technology, specifically to a groundwater sampling device based on hydrogeological and environmental information mapping. Background Technology

[0002] Groundwater, as an important component of water resources, has a quality and dynamic changes that directly affect ecological balance, agricultural irrigation, industrial water use, and the safety of drinking water for residents. Geographic information services can help us understand the topography and soil of farmland, and rationally plan irrigation systems, drainage systems, and other farmland water conservancy facilities. As a comprehensive geological survey technology, hydrogeological and environmental information mapping can comprehensively obtain relevant information about the groundwater system, providing key data support for groundwater research and management.

[0003] In the process of hydrogeological and environmental information mapping, it is usually necessary to sample groundwater and analyze the extracted groundwater samples to determine the content of various chemical components in the water and to determine whether it is suitable for irrigation or other uses.

[0004] When collecting groundwater samples, the water sample below the surface is usually extracted directly into a glass container for storage. Because the temperature change below the surface is small, while the temperature change above the surface is relatively large, and there is a significant temperature difference between the two, the temperature of the sample changes significantly when it is taken out of the ground. This change alters the rate of chemical reactions and the growth rate of microorganisms, which in turn changes the chemical composition of the collected water sample. Consequently, the test results of the collected groundwater sample are distorted. Summary of the Invention

[0005] The purpose of this invention is to provide a groundwater sampling device based on hydrogeological and environmental information mapping to solve the problems mentioned above.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a groundwater sampling device based on hydrogeological and environmental information mapping, comprising a pump body, an inlet pipe provided at the inlet end of the pump body, a first baffle ring and a second baffle ring provided on the inlet pipe, a float sleeved on the outside of the inlet pipe, the float being located between the first baffle ring and the second baffle ring, and by observing the displacement of the float between the first baffle ring and the second baffle ring when the inlet pipe is continuously submerged in water, the depth range below the water level of the end of the inlet pipe away from the pump body can be determined. A storage unit is provided at the outlet end of the pump body, and a monitoring unit is provided at the end of the storage unit away from the pump body.

[0007] The storage unit includes an insulated container with a hollow layer in its wall and glass wool inside the hollow layer. The glass wool has good thermal insulation performance, chemical stability, and corrosion resistance. A cover plate is provided at the end of the insulated container away from the pump body. A sample container is provided inside the insulated container, and a sealing plate is slidably provided inside the sample container. An exhaust unit is provided at the upper end of the sample container, and the exhaust unit includes a telescopic corrugated pipe that can contact the sealing plate and extend into the sample container.

[0008] A switching unit is provided at one end of the storage unit near the pump body. The switching unit includes a switching block located at the water outlet of the pump body. A switching groove is formed at the end of the switching block furthest from the pump body. A sample hole is formed in the middle of the switching groove. Two heat-insulating holes are formed within the switching groove, symmetrically positioned on either side of the sample hole. Two stop blocks are slidably disposed within the switching groove, capable of blocking the sample hole and the heat-insulating holes. Trigger grooves are formed at the ends of the two stop blocks that are close to each other. It can form an avoidance groove. The switching groove has symmetrical limit grooves on its wall. The block has symmetrical sliders on both sides. The sliders are slidably disposed in the limit grooves. The limit grooves are used to ensure that when the two blocks are in contact with each other, the two blocks are located in the middle area of ​​the switching block. This allows the two blocks to block the sample hole when they are in contact. When the blocks block the sample hole, they do not block the insulation hole. When the insulation hole is not blocked, the water discharged from the pump outlet can enter the insulation tank through the insulation hole.

[0009] The switching unit also includes a trigger rod located at the bottom of the sample container. The outer contour of the trigger rod at the end away from the sample container is adapted to the outer contour of the clearance groove. A flow hole is provided inside the trigger rod. A one-way valve is provided at the bottom of the sample container. The trigger rod is used to allow water to enter the sample container through the flow hole and the one-way valve.

[0010] As a preferred embodiment of the groundwater sampling device based on hydrogeological and environmental information mapping according to the present invention, wherein: a first magnet block is embedded at one end of the two blocks that are far apart from each other, and a second magnet block is embedded at one end of the two blocks that are close to each other.

[0011] As a preferred embodiment of the groundwater sampling device based on hydrogeological and environmental information mapping according to the present invention, wherein: a third magnet is symmetrically embedded on the switching block, the third magnet and the second magnet have the same poles and repel each other, and the two first magnets have opposite poles and attract each other.

[0012] As a preferred embodiment of the groundwater sampling device based on hydrogeological and environmental information mapping described in this invention, the sample tank is symmetrically provided with a positioning frame, the positioning frame is attached to the inner wall of the insulated tank, and buoyancy plates are symmetrically provided at both ends of the positioning frame.

[0013] As a preferred embodiment of the groundwater sampling equipment based on hydrogeological and environmental information mapping according to the present invention, the exhaust unit includes an exhaust plate, the exhaust plate is disposed inside an insulated tank, a water inlet groove is provided through the middle region of the exhaust plate, and the telescopic corrugated pipe is disposed at the lower end of the exhaust plate.

[0014] As a preferred embodiment of the groundwater sampling device based on hydrogeological and environmental information mapping according to the present invention, the exhaust plate is located in the upper region of the sample tank, and the exhaust plate is provided with an array of exhaust holes.

[0015] As a preferred embodiment of the groundwater sampling device based on hydrogeological and environmental information mapping according to the present invention, the cover plate includes a movable block, the monitoring unit includes a monitoring tank, the movable block is disposed inside the monitoring tank, and the movable block is provided with an array of movable slots.

[0016] As a preferred embodiment of the groundwater sampling device based on hydrogeological and environmental information mapping according to the present invention, the lower end of the movable block is provided with multiple telescopic rods, and the upper end of the movable block is provided with a connecting block.

[0017] As a preferred embodiment of the groundwater sampling device based on hydrogeological and environmental information mapping according to the present invention, wherein: a connecting rod is symmetrically arranged at the end of the connecting block away from the movable block, and a tie rod is hinged at the end of the connecting rod away from the connecting block.

[0018] As a preferred embodiment of the groundwater sampling device based on hydrogeological and environmental information mapping according to the present invention, the cover plate is provided with two bases, which are symmetrically arranged on both sides of the movable block. The pull rod is slidably mounted on the base. A magnet block four is provided at the ends of the two bases that are far apart from each other. A magnet block five is embedded at the end of the pull rod that is far away from the connecting rod. The magnet block four and the magnet block five are attracted by opposite poles. A base groove is provided on the base. The pull rod slides in the base groove. Ratchets are provided on both sides of the base groove. A limit post and a locking strip are symmetrically provided at the end of the pull rod that is far away from the connecting rod. The locking strip is rotatably connected to the pull rod, and a torsion spring is provided at the connection between the pull rod and the locking strip.

[0019] Compared with the prior art, the beneficial effects of the present invention are:

[0020] 1. By placing the sample container inside an insulated container, groundwater is pumped into the insulated container using a pump. The groundwater in the insulated container exchanges heat with the sample container first, so that the temperature of the sample container is close to that of the groundwater sample before it is stored. At the same time, a switching unit is used so that when the insulated container is full of groundwater, the groundwater sample begins to be collected into the sample container. At this time, the temperature change of the groundwater sample collected into the sample container is small, which in turn results in a smaller change in the chemical reaction rate and microbial growth rate in the collected groundwater sample. This improves the authenticity and representativeness of the groundwater sample test results. Furthermore, under the insulation effect of the insulated container, the collected sample can be stored for a period of time, which is beneficial for sample transportation and testing.

[0021] 2. By setting up a telescopic corrugated pipe and pushing it to the top of the sealing plate, the air inside the sample container is discharged, which further improves the heat exchange efficiency between the groundwater in the insulated container and the sample container, reduces the temperature difference between the sample container and the groundwater sample, and improves the representativeness of the collected groundwater sample. At the same time, the discharge of gas inside the sample container avoids the mixing of groundwater sample and gas inside the sample container, thereby avoiding contamination of the collected groundwater sample and further improving the authenticity and representativeness of the collected groundwater sample.

[0022] 3. When the water sample begins to enter the sample container, the sealing plate will gradually move away from the water pump, causing the water volume in the insulated container to increase. The water in the insulated container enters the monitoring container through the moving channel. At this time, the water level in the monitoring container begins to rise. By observing the change in the water level in the monitoring container, when the water level in the monitoring container stops rising, it is determined that the groundwater sample collection in the sample container has been completed. At the same time, a scale is set on the monitoring container. By observing the scale, the amount of water sample collected in the sample container can be directly observed, avoiding insufficient water sample quantity and lack of representativeness, further improving the water sample detection accuracy, and further avoiding secondary sampling of groundwater due to insufficient water sample quantity. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the overall structure of the groundwater sampling equipment based on hydrogeological and environmental information mapping according to the present invention.

[0024] Figure 2 This is a schematic diagram of the internal structure of the insulated tank of the groundwater sampling equipment based on hydrogeological and environmental information mapping according to the present invention.

[0025] Figure 3 This is a top view of the sample tank of the groundwater sampling device based on hydrogeological and environmental information mapping according to the present invention.

[0026] Figure 4 This is a top-view structural schematic diagram of the sample tank of the groundwater sampling device based on hydrogeological and environmental information mapping according to the present invention.

[0027] Figure 5 This is a schematic diagram of the exhaust unit of the groundwater sampling equipment based on hydrogeological and environmental information mapping according to the present invention.

[0028] Figure 6 This is a schematic diagram of the switching unit of the groundwater sampling equipment based on hydrogeological and environmental information mapping according to the present invention.

[0029] Figure 7 This is a schematic diagram of the structure of magnet block one and magnet block two of the groundwater sampling device based on hydrogeological and environmental information mapping according to the present invention.

[0030] Figure 8 This is a schematic diagram of the internal structure of the monitoring tank of the groundwater sampling equipment based on hydrogeological and environmental information mapping according to the present invention.

[0031] Figure 9 This is a schematic diagram of the movable block of the groundwater sampling device based on hydrogeological and environmental information mapping according to the present invention.

[0032] Figure 10 This is a schematic diagram of the connecting rod and tie rod of the groundwater sampling device based on hydrogeological and environmental information mapping according to the present invention.

[0033] In the picture:

[0034] 1. Pump body; 11. Inlet pipe;

[0035] 2. Storage unit; 21. Insulated container; 22. Cover plate; 23. Sample container; 231. Sealing plate; 24. Positioning frame; 25. Buoyancy plate;

[0036] 3. Monitoring unit; 31. Monitoring tank; 32. Movable block; 33. Movable groove; 34. Multi-section telescopic rod; 35. Connecting block; 36. Connecting rod; 37. Pull rod; 38. Base; 381. Magnet block five; 39. Magnet block four;

[0037] 4. Switching unit; 41. Switching block; 411. Magnet block three; 42. Switching slot; 43. Sample hole; 44. Insulation hole; 45. Stop block; 451. Trigger slot; 452. Magnet block one; 453. Magnet block two; 46. Trigger rod; 461. Flow hole;

[0038] 5. Exhaust unit; 51. Telescopic corrugated pipe; 52. Exhaust plate; 53. Water inlet tank; 54. Exhaust port. Detailed Implementation

[0039] The features and exemplary embodiments of various aspects of the present invention will now be described in detail. Numerous specific details are set forth in the following detailed description to provide a thorough understanding of the invention. However, it will be apparent to those skilled in the art that the invention may be practiced without requiring some of these specific details. The following description of embodiments is merely intended to provide a better understanding of the invention by illustrating examples of the invention. The invention is by no means limited to any specific configurations and algorithms presented below, but covers any modifications, substitutions, and improvements to elements, components, and algorithms without departing from the spirit of the invention. Well-known structures and techniques are not shown in the drawings and the following description in order to avoid unnecessarily obscuring the invention.

[0040] Example 1

[0041] Reference Figure 1-7 This is the first embodiment of the present invention, which provides a groundwater sampling device based on hydrogeological and environmental information mapping. The groundwater sampling device based on hydrogeological and environmental information mapping includes a pump body 1, an inlet pipe 11 is provided at the water inlet end of the pump body 1, a first baffle ring and a second baffle ring are provided on the inlet pipe 11, and a float is sleeved on the outside of the inlet pipe 11. The float is located between the first baffle ring and the second baffle ring. When the inlet pipe 11 is continuously submerged in the water, by observing the displacement of the float between the first baffle ring and the second baffle ring, it can be determined that the depth range of the end of the inlet pipe 1 away from the pump body 1 is submerged below the water level. A storage unit 2 is provided at the water outlet end of the pump body 1, and a monitoring unit 3 is provided at the end of the storage unit 2 away from the pump body 1.

[0042] Storage unit 2 includes an insulated container 21. The container wall of the insulated container 21 has a hollow layer, and glass wool is placed inside the hollow layer. The glass wool has good thermal insulation performance, chemical stability, and corrosion resistance. A cover plate 22 is provided at the end of the insulated container 21 away from the pump body 1. An opening is provided at the end of the insulated container 21 away from the pump body 1. The cover plate 22 is threadedly connected to the insulated container 21 and can seal the opening end of the insulated container 21. An exhaust valve is provided on the cover plate 22. A sample container 23 is placed inside the insulated container 21. A sliding device is installed inside the sample container 23. A sealing plate 231 is provided, and a sealing strip is provided at the edge of the sealing plate 231. An exhaust valve is provided on the sealing plate 231. An exhaust unit 5 is provided at the upper end of the sample container 23. The exhaust unit 5 includes a telescopic corrugated pipe 51. The telescopic corrugated pipe 51 is a tubular structure with telescopic properties. The telescopic principle of the telescopic corrugated pipe 51 is based on its corrugated structure. When subjected to axial tension or pressure, the corrugations will deform, thereby realizing the extension or shortening of the pipe body. The telescopic corrugated pipe 51 can contact the sealing plate 231 and extend into the sample container 23.

[0043] A switching unit 4 is provided at one end of the storage unit 2 near the pump body 1. The switching unit 4 includes a switching block 41, which is located at the water outlet of the pump body 1 and penetrates through the insulation tank 21. A switching groove 42 is provided at the end of the switching block 41 away from the pump body 1. A sample hole 43 is provided in the middle area of ​​the switching groove 42. Two insulation holes 44 are provided in the switching groove 42, and the two insulation holes 44 are symmetrically arranged on both sides of the sample hole 43. Two stops 45 are slidably arranged in the switching groove 42. The stops 45 can block the sample hole 43 and the insulation holes 44. A trigger is provided at the end of the two stops 45 that are close to each other. The two trigger slots 451 can form an avoidance slot. The switching slot 42 has symmetrical limit slots on its wall. The block 45 has symmetrical sliders on both sides. The sliders are slidably set in the limit slots. The limit slots are used to ensure that when the two blocks 45 are in contact with each other, the two blocks 45 are located in the middle area of ​​the switching block 41. This allows the two blocks 45 to block the sample hole 43 when they are in contact. When the blocks 45 block the sample hole 43, they will not block the insulation hole 44. When the insulation hole 44 is not blocked, the water discharged from the outlet of the pump body 1 can enter the insulation tank 21 through the insulation hole 44.

[0044] The switching unit 4 also includes a trigger rod 46 located at the bottom of the sample container 23. The outer contour of the end of the trigger rod 46 away from the sample container 23 is adapted to the outer contour of the clearance groove. A flow hole 461 is provided inside the trigger rod 46. A one-way valve is provided at the bottom of the sample container 23. The trigger rod 46 is used to allow water to enter the sample container 23 through the flow hole 461 and the one-way valve.

[0045] A magnet 452 is embedded at one end of the two blocks 45 that are far apart from each other, and a magnet 453 is embedded at one end of the two blocks 45 that are close to each other.

[0046] The switching block 41 is symmetrically embedded with a magnet block 3 411. The magnet block 3 411 and the magnet block 2 453 are repulsive to each other because they have the same pole, while the two magnet blocks 1 452 are attracted to each other because they have opposite poles.

[0047] The sample container 23 is symmetrically provided with a positioning frame 24, which is attached to the inner wall of the insulated container 21. The two ends of the positioning frame 24 are symmetrically provided with buoyancy plates 25. The positioning frame 24 can support and position the sample container 23. The buoyancy plates 25 are preferably made of EVA plastic.

[0048] During use, firstly, gradually immerse the end of the inlet pipe 11 away from the pump body 1 into the groundwater. Observe the movement of the float along the inlet pipe 11. When the float moves to the appropriate position of the inlet pipe 11, start the pump body 1. At this time, the groundwater will enter the pump body 1 through the inlet end of the pump body 1 under the action of the pump body 1, and then the groundwater will be discharged through the outlet end of the pump body 1.

[0049] At this time, the two blocks 45 are attracted to each other under the magnetic attraction of the magnet block 452, causing the sample hole 43 to be blocked by the two blocks 45. At this time, the heat insulation hole 44 is in the open state, and the groundwater discharged by the pump body 1 passes through the heat insulation hole 44 and the switching block 41.

[0050] At this time, groundwater enters the insulation tank 21. As the groundwater continues to enter the insulation tank 21, the liquid level in the insulation tank 21 gradually rises. When the liquid level in the insulation tank 21 rises to the point of submerging the exhaust unit 5, the groundwater will enter the expansion corrugated pipe 51 under the action of gravity. During the process of the groundwater continuously entering the insulation tank 21, the gas in the insulation tank 21 is discharged through the exhaust valve.

[0051] After the gas in the insulation tank 21 is discharged, groundwater continues to enter the insulation tank 21, increasing the water pressure inside the insulation tank 21. Then, under the action of water pressure, the telescopic bellows 51 gradually extends from its initial contracted state and gradually extends into the sample tank 23. Then, the telescopic bellows 51 contacts the sealing plate 231 and pushes against the sealing plate 231. At this time, the gas in the sample tank 23 will be discharged through the second exhaust valve. When the sealing plate 231 moves to the limit position, the telescopic bellows 51 will push against the sample tank 23, and the sample tank 23 will be subjected to a pushing force in the direction of the pump body 1.

[0052] At this time, the trigger rod 46 will contact the stop block 45, and the trigger rod 46 will cause the two stop blocks 45 to gradually separate under the action of the trigger groove 451. At this time, the two stop blocks 45 will no longer block the sample hole 43, and the two stop blocks 45 will block the heat insulation hole 44. Then the groundwater pumped by the pump body 1 will enter the sample tank 23 through the flow hole 461 and the one-way valve.

[0053] Example 2

[0054] Reference Figure 1-8 This is the second embodiment of the present invention, which differs from the first embodiment in that:

[0055] The exhaust unit 5 includes an exhaust plate 52, which is installed inside the heat preservation tank 21. A water inlet groove 53 is provided through the middle area of ​​the exhaust plate 52. A telescopic corrugated pipe 51 is installed at the lower end of the exhaust plate 52 and at the opening of the water inlet groove 53.

[0056] The exhaust plate 52 is located in the upper area of ​​the sample container 23, and the side of the exhaust plate 52 near the sample container 23 is set as a convex arc surface structure. The exhaust plate 52 has an array of exhaust holes 54.

[0057] During use, when the telescopic corrugated pipe 51 pushes the sealing plate 231, the gas in the sample tank 23 will be discharged into the heat preservation tank 21 through the exhaust valve. Since the heat preservation tank 21 is filled with groundwater, the gas will gradually rise in the form of bubbles. During the rising process, the bubbles will be discharged through the exhaust hole 54 under the action of the convex curved surface structure on the exhaust plate 52.

[0058] The gas passing through the vent 54 and the vent plate 52 is eventually discharged through the vent valve under the pressure of the water.

[0059] The remaining structure is the same as that in Example 1.

[0060] Example 3

[0061] Reference Figure 1-10 This is the third embodiment of the present invention, which differs from the second embodiment in that:

[0062] The cover plate 22 includes a movable block 32, and an exhaust valve is disposed on the movable block 32. The movable block 32 is slidably connected to the cover plate 22. The monitoring unit 3 includes a monitoring tank 31. The movable block 32 is disposed inside the monitoring tank 31. Movable grooves 33 are arranged in an array on the movable block 32. An exhaust valve is disposed on the monitoring tank 31. The monitoring tank 31 is disposed on the side of the cover plate 22 away from the heat preservation tank 21. The monitoring tank 31 is preferably made of acrylic material, and scale lines are provided on the tank wall of the monitoring tank 31 for observing changes in the liquid level.

[0063] The lower end of the movable block 32 is provided with multiple telescopic rods 34. The end of the multiple telescopic rods 34 away from the movable block 32 is connected to the telescopic end of the telescopic corrugated pipe 51. The upper end of the movable block 32 is provided with a connecting block 35.

[0064] A connecting rod 36 is symmetrically arranged at the end of the connecting block 35 away from the movable block 32. The connecting rod 36 is hinged to the connecting block 35. A pull rod 37 is hinged at the end of the connecting rod 36 away from the connecting block 35.

[0065] Two bases 38 are provided on the cover plate 22. The bases 38 are symmetrically arranged on both sides of the movable block 32. The pull rod 37 is engaged and slidably mounted on the bases 38. A magnet block 4 39 is provided at the end of the two bases 38 that is far away from each other. A magnet block 5 381 is embedded at the end of the pull rod 37 that is far away from the connecting rod 36. The magnet block 4 39 and the magnet block 5 381 are attracted by opposite poles. A base groove is provided on the base 38. The pull rod 37 slides in the base groove. Ratchets are provided on both sides of the base groove. A limit post and a locking strip are symmetrically provided at the end of the pull rod 37 that is far away from the connecting rod 36. The locking strip is rotatably connected to the pull rod 37, and a torsion spring is provided at the connection between the pull rod 37 and the locking strip.

[0066] During use, initially, the movable groove 33 on the movable block 32 is not connected to the inside of the heat preservation tank 21. When the telescopic corrugated pipe 51 pushes the sealing plate 231, the multi-section telescopic rod 34 gradually extends from the retracted state. When the sealing plate 231 is pushed to the limit position, the multi-section telescopic rod 34 also extends to the limit length. Through the multi-section telescopic rod 34, the telescopic corrugated pipe 51 will pull the movable block 32, causing the movable block 32 to slide. At this time, the movable groove 33 is connected to the inside of the heat preservation tank 21.

[0067] During the movement of the movable block 32, the magnet block 381 on the pull rod 37 will separate from the magnet block 39 on the base 38, and then the locking bar will be locked on the ratchet under the action of the torsion spring.

[0068] When groundwater enters the sample container 23, the water pressure inside the sample container 23 will push the sealing plate 231 and the telescopic corrugated pipe 51. At this time, due to the limiting column limiting the locking strip, the pull rod 37 cannot be reset, and then the multi-section telescopic rod 34 is reset.

[0069] Since the volume of the insulated tank 21 is fixed, when groundwater continuously enters the sample tank 23, the water in the insulated tank 21 will enter the monitoring tank 31 through the movable channel 33. When the groundwater is collected into the sample tank 23, the pump 1 can be turned off when the water level in the monitoring tank 31 stops changing. At this time, enough groundwater sample has been collected in the sample tank 23. During the process of turning off the pump 1, the groundwater sample continues to enter the sample tank 23, resulting in a large water pressure in the sample tank 23. As a result, the water sample in the sample tank 23 is stored in the sample tank 23 under the action of the sealing plate 231.

[0070] The remaining structure is the same as that in Example 2.

[0071] Different technical features appearing in different embodiments can be combined to achieve beneficial effects. Those skilled in the art, based on a study of the drawings, specification, and claims, should be able to understand and implement other variations of the disclosed embodiments. In the claims, the term "comprising" does not exclude other means or steps; the indefinite article "a" does not exclude a plurality; the terms "first" and "second" are used to identify names rather than to indicate any particular order. No reference numerals in the claims should be construed as limiting the scope of protection. The functionality of multiple parts appearing in the claims can be implemented by a single hardware or software module. The appearance of certain technical features in different dependent claims does not mean that these technical features cannot be combined to achieve beneficial effects.

Claims

1. A groundwater sampling device based on hydrogeological and environmental information mapping, comprising a pump body (1), characterized in that, The pump body (1) is provided with an inlet pipe (11) at the inlet end, and a storage unit (2) is provided at the outlet end of the pump body (1). A monitoring unit (3) is provided at the end of the storage unit (2) away from the pump body (1). The storage unit (2) includes an insulated container (21), and a cover plate (22) is provided at the end of the insulated container (21) away from the pump body (1). A sample container (23) is provided inside the insulated container (21), and a sealing plate (231) is slidably provided inside the sample container (23). An exhaust unit (5) is provided at the upper end of the sample container (23). The exhaust unit (5) includes a telescopic corrugated pipe (51), which can contact the sealing plate (231) and extend into the sample container (23). The storage unit (2) is provided with a switching unit (4) at one end near the pump body (1). The switching unit (4) includes a switching block (41). The switching block (41) is located at the water outlet of the pump body (1). A switching groove (42) is provided at one end of the switching block (41) away from the pump body (1). A sample hole (43) is provided in the middle area of ​​the switching groove (42). Two heat preservation holes (44) are provided in the switching groove (42). The two heat preservation holes (44) are symmetrically arranged on both sides of the sample hole (43). Two blocks (45) are slidably arranged in the switching groove (42). The blocks (45) can block the sample hole (43) and the heat preservation hole (44). A trigger groove (451) is provided at one end of the two blocks (45) that are close to each other. The two trigger grooves (451) can form an avoidance groove. The switching unit (4) also includes a trigger rod (46) set at the bottom of the sample container (23). The outer contour of the trigger rod (46) at the end away from the sample container (23) is adapted to the outer contour of the clearance groove. A flow hole (461) is opened inside the trigger rod (46). A one-way valve is set at the bottom of the sample container (23). The trigger rod (46) is used to allow water to enter the sample container (23) through the flow hole (461) and the one-way valve.

2. The groundwater sampling device based on hydrogeological and environmental information mapping according to claim 1, characterized in that: A magnet block 1 (452) is embedded at one end of the two blocks (45) that are far apart from each other, and a magnet block 2 (453) is embedded at one end of the two blocks (45) that are close to each other.

3. The groundwater sampling device based on hydrogeological and environmental information mapping according to claim 2, characterized in that: The switching block (41) is symmetrically embedded with a magnet block three (411). The magnet block three (411) and the magnet block two (453) are repulsive to each other with the same pole, and the two magnet blocks one (452) are attracted to each other with opposite poles.

4. The groundwater sampling device based on hydrogeological and environmental information mapping according to claim 1, characterized in that: The sample container (23) is symmetrically provided with a positioning frame (24), which is attached to the inner wall of the heat preservation container (21). The two ends of the positioning frame (24) are symmetrically provided with buoyancy plates (25).

5. The groundwater sampling device based on hydrogeological and environmental information mapping according to claim 1, characterized in that: The exhaust unit (5) includes an exhaust plate (52), which is installed inside the heat preservation tank (21). A water inlet groove (53) is provided through the middle area of ​​the exhaust plate (52), and the telescopic corrugated pipe (51) is installed at the lower end of the exhaust plate (52).

6. The groundwater sampling device based on hydrogeological and environmental information mapping according to claim 5, characterized in that: The exhaust plate (52) is located in the upper area of ​​the sample container (23), and the exhaust plate (52) has an array of exhaust holes (54).

7. The groundwater sampling device based on hydrogeological and environmental information mapping according to claim 1, characterized in that: The cover plate (22) includes a movable block (32), the monitoring unit (3) includes a monitoring tank (31), the movable block (32) is disposed inside the monitoring tank (31), and the movable block (32) is provided with an array of movable slots (33).

8. A groundwater sampling device based on hydrogeological and environmental information mapping according to claim 7, characterized in that: The lower end of the movable block (32) is provided with multiple telescopic rods (34), and the upper end of the movable block (32) is provided with a connecting block (35).

9. A groundwater sampling device based on hydrogeological and environmental information mapping according to claim 8, characterized in that: A connecting rod (36) is symmetrically arranged at one end of the connecting block (35) away from the movable block (32), and a pull rod (37) is hinged at one end of the connecting rod (36) away from the connecting block (35).

10. A groundwater sampling device based on hydrogeological and environmental information mapping according to claim 9, characterized in that: Two bases (38) are provided on the cover plate (22). The pull rod (37) is engaged and slidably disposed on the base (38). A magnet block four (39) is provided at one end of the two bases (38) that are far apart from each other. A magnet block five (381) is embedded at one end of the pull rod (37) that is far away from the connecting rod (36).

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