Geochemical aerodynamic helical sampling device

Abstract

The present application provides a kind of geochemical pneumatic spiral sampling device, belong to geochemical technical field, including exploration box and pneumatic spiral sampling device, connector is installed at the top of exploration box, and is communicated with exploration box, the top of inner wall in exploration box is installed with pneumatic spiral sampling device, pneumatic spiral sampling device is movably connected at the top of inner wall in exploration box, pneumatic plate is movably connected at the top inside exploration box, the outside of pneumatic plate is closely combined with the inner wall of exploration box, screw rod is arranged in the inside of exploration box, the top of screw rod is movably connected with the bottom of pneumatic plate, by setting up pneumatic spiral sampling device, by the mutual cooperation between pneumatic spiral sampling device and the internal parts of layered liquid taking mechanism, it can effectively sample lake sediment sample while stratified sampling of surface water, avoid surface water and mud separate sampling influence subsequent detection matching situation appears.

Description

Technical Field

[0001] This invention relates to the field of geochemistry, and more specifically, to a geochemical pneumatic spiral sampling device. Background Technology

[0002] Geochemistry primarily studies the composition of elements and their isotopes in the Earth and geological bodies, quantitatively determining the distribution of elements and their isotopes in various parts of the Earth (such as the hydrosphere, atmosphere, biosphere, and lithosphere) and geological bodies; and revealing the migration, enrichment, and dispersion patterns of elements and their isotopes on and within the Earth's surface by collecting and analyzing samples of water, soil, plants and animals, and rocks.

[0003] Currently, surface water and sediment sampling is generally done separately. First, surface water is pumped to extract samples, and then sediment samples are collected using sampling robots or other tools. However, when surface water and sediment are sampled separately, it is difficult to keep the sampling locations consistent, which affects the subsequent detection and matching between surface water and riverbed soil layers. Therefore, it is necessary to develop a device that can simultaneously sample surface water and sediment. Summary of the Invention

[0004] To overcome the above deficiencies, the present invention provides a geochemical pneumatic spiral sampling device that overcomes or at least partially solves the above technical problems.

[0005] This invention is implemented as follows: This invention provides a geochemical pneumatic spiral sampling device, including an exploration box and a connector. The connector is installed on the top of the exploration box and is connected to the exploration box. The pneumatic spiral sampling device is installed on the top of the inner wall of the exploration box and is movably connected to the top of the inner wall of the exploration box. A pneumatic spiral sampling device, wherein the pneumatic spiral sampling device includes; Pneumatic plate; the pneumatic plate is movably connected to the top inside the exploration box, and the outer side of the pneumatic plate is tightly fitted to the inner wall of the exploration box; A helical rod; the helical rod is disposed inside the exploration box, and the top of the helical rod is movably connected to the bottom of the pneumatic plate; A fixing plate; the fixing plate is fixedly connected to the inner wall of the exploration box, and the top of the fixing plate has an opening for movement; A movable ring; the movable ring is movably connected to the inside of the movable opening, and a threaded hole is provided at the top of the movable ring; Sampling head; the sampling head is connected to the bottom of the screw rod, and the sampling head is located at the bottom of the fixed plate; Sampling port; the sampling port is opened on both sides of the sampling head, and a fixing plate is installed on both sides of the sampling head outside the sampling port, and a sampling plate is fixedly connected to the outside of the fixing plate; A stratified liquid extraction mechanism; the stratified liquid extraction mechanism is fixedly connected to the right side of the exploration box.

[0006] In a preferred embodiment, the layered liquid extraction mechanism includes a liquid extraction box, a layering plate, a liquid extraction port, and a sealing plate. The liquid extraction box is fixedly connected to the right side of the exploration box. The layering plate is fixedly connected to the top and bottom of the liquid extraction box, respectively. The layering plate divides the liquid extraction box into three liquid chambers. The liquid extraction port is located on the right side of the liquid extraction box. There are several liquid extraction ports, and the ports are evenly distributed. The sealing plate is movably connected to the outside of the liquid extraction ports.

[0007] In a preferred embodiment, push rods are movably connected to the top of the inner wall of the liquid collection box and the bottom of the layered plate. The right side of the push rod is fixedly connected to the left side of the sealing plate, and a magnetic strip is fixedly connected to the left side of the push rod. A magnetic plate is movably connected to the right side of the bottom of the pneumatic plate.

[0008] In a preferred embodiment, the push rod has a sliding opening at its top, and a slide frame is slidably connected inside the sliding opening. The top of the slide frame is fixedly connected to the bottom of the layered plate. A first spring is provided inside the sliding opening, with one end of the first spring fixedly connected to the inner wall of the sliding opening and the other end of the first spring fixedly connected to the surface of the slide frame.

[0009] In a preferred embodiment, a receiving opening is provided on the right side of the top of the fixing plate, a positioning cavity is provided on the left side of the inner wall of the receiving opening, a positioning strip is movably connected inside the positioning cavity, and a positioning groove is provided on the left side of the magnetic plate.

[0010] In a preferred embodiment, a movable opening communicating with the positioning cavity is provided on the right side of the bottom of the fixing plate. A movable handle is movably connected inside the movable opening. The top of the movable handle passes through the movable opening into the interior of the positioning cavity. The right side of the movable handle is fixedly connected to the left side of the positioning strip.

[0011] In a preferred embodiment, the top of the fixed plate has slots on both sides that communicate with the movable opening. A locking block is movably connected inside the slot. The inner side of the locking block is fixedly connected to the outer side of the movable ring. An electromagnet is fixedly connected to the bottom of the inner wall of the slot.

[0012] In a preferred embodiment, both sides of the bottom of the exploration box are movably connected to a closing plate, the top of the closing plate is fixedly connected to a ladder block, the top of the inner side of the ladder block is movably connected to a wedge block, both sides of the top of the fixed plate are provided with lifting ports, the inside of the lifting ports is movably connected to a lifting rod, and the bottom of the lifting rod is fixedly connected to the top of the wedge block.

[0013] In a preferred embodiment, connecting grooves are provided on both sides of the top of the closed plate, and connecting blocks are movably connected inside the connecting grooves. The top of the connecting blocks is fixedly connected to the bottom of the exploration box. A second spring is provided inside the connecting grooves. One end of the second spring is fixedly connected to the inner wall of the connecting grooves, and the other end of the second spring is fixedly connected to the surface of the connecting blocks.

[0014] In a preferred embodiment, a fixed sleeve is fixedly connected to the bottom of the pneumatic plate. The fixed sleeve has a T-shaped hollow interior and a connecting shaft is movably connected inside the fixed sleeve. The bottom of the connecting shaft is fixedly connected to the top of the screw rod.

[0015] The geochemical pneumatic spiral sampling device provided by this invention has the following beneficial effects: 1. By setting up a pneumatic spiral sampling device, and through the cooperation between the pneumatic spiral sampling device and the internal components of the stratified liquid sampling mechanism, it is possible to effectively sample the surface water while sampling the riverbed soil layer, thus avoiding the situation where sampling the surface water and the riverbed soil layer separately would affect the subsequent detection and matching.

[0016] 2. By setting up a layered liquid sampling mechanism, during the process of the pneumatic plate driving the screw rod to drive the sampling head and sampling plate to excavate and sample the riverbed soil layer, the magnetic plate and magnetic strip drive the push rod to drive the sealing plate to open and close one by one, so as to carry out layered sampling of surface water at the same time as riverbed soil sampling.

[0017] 3. By setting up push rods, magnetic strips and magnetic plates, the pneumatic plate can effectively move the magnetic plate during the operation of the pneumatic plate, screw rod and sampling head. The magnetic plate applies the same polarity thrust to the magnetic strip, which pushes the sealing plate through the push rod to open the liquid collection port, thereby collecting the surface water into the liquid collection box. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present invention and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained from these drawings without creative effort.

[0019] Figure 1 This is a perspective view provided by an embodiment of the present invention.

[0020] Figure 2 This is a schematic diagram of the three-dimensional cross-sectional structure of the fixing sleeve provided in an embodiment of the present invention.

[0021] Figure 3 This is a schematic diagram of the three-dimensional cross-sectional structure of the liquid collection box provided in an embodiment of the present invention.

[0022] Figure 4 This is a schematic diagram of the three-dimensional cross-sectional structure of the layered plate provided for an embodiment of the present invention.

[0023] Figure 5 A schematic diagram of the three-dimensional structure of the sampling head provided for an embodiment of the present invention.

[0024] Figure 6 This is a schematic diagram of the three-dimensional cross-sectional structure of the closed plate provided in an embodiment of the present invention.

[0025] Figure 7 This is a schematic diagram of the three-dimensional cross-sectional structure of the fixing plate provided in an embodiment of the present invention.

[0026] Figure 8 A schematic diagram of the three-dimensional structure of the ladder block and wedge block provided for an embodiment of the present invention.

[0027] Figure 9 This is a schematic diagram of the three-dimensional cross-sectional structure of the magnetic plate provided for an embodiment of the present invention.

[0028] In the diagram: 1. Exploration box; 2. Connector; 31. Pneumatic plate; 32. Screw rod; 33. Fixing plate; 34. Movable port; 35. Movable ring; 36. Threaded hole; 37. Sampling head; 38. Sampling port; 39. Fixing plate; 391. Sampling plate; 41. Liquid collection box; 42. Layering plate; 43. Liquid collection port; 44. Sealing plate; 5. Push rod; 6. Magnetic strip; 7. Magnetic plate; 8. Slide; 9. Carriage ; 10. First spring; 11. Receiving port; 12. Positioning cavity; 13. Positioning strip; 14. Positioning groove; 15. Moving port; 16. Moving handle; 17. Slot; 18. Slot block; 19. Electromagnet; 20. Closing plate; 21. Step block; 22. Wedge block; 23. Lifting port; 24. Lifting rod; 25. Connecting groove; 26. Connecting block; 27. Second spring; 28. Fixing sleeve; 29. ​​Connecting shaft. Detailed Implementation

[0029] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0030] Example: Refer to Figures 1-9 This invention provides a technical solution: a geochemical pneumatic spiral sampling device, including an exploration box 1 and a pneumatic spiral sampling device. A connector 2 is installed on the top of the exploration box 1 and is connected to the exploration box 1. The pneumatic spiral sampling device is installed on the top of the inner wall of the exploration box 1. The pneumatic spiral sampling device is movably connected to the top of the inner wall of the exploration box 1. During the descent of the pneumatic plate 31, the spiral rod 32 is rotated and connected to the pneumatic plate 31 through the fixed sleeve 28 and the connecting shaft 29. This causes the spiral rod 32 to be affected by the thrust of the descent of the pneumatic plate 31 and the thread guiding force of the threaded hole 36, so that the spiral rod 32 drives the sampling head 37 to rotate and move downward. The sampling plate 391 is used to sample the sample. During the sampling of the riverbed soil layer, the pneumatic plate 31 drives the screw rod 32 through the fixed sleeve 28 and the connecting shaft 29 with the threaded hole 36 to drive the working sampling head 37 to cooperate with the sampling plate 391 to sample the riverbed soil layer. During this process, the magnetic plate 7 moves downward with the pneumatic plate 31. When the magnetic plate 7 and the magnetic strip 6 are on the same horizontal line, the magnetic strip 6 is affected by the same pole magnetic thrust of the magnetic plate 7, which causes the magnetic strip 6 to push the sealing plate 44 to the right through the push rod 5, opening the liquid intake port 43 so that the surface water enters the cavity of the liquid intake box 41 separated by the stratification plate 42. The surface water is sampled and stored in layers, thereby synchronizing the sampling of surface water and riverbed soil layer and unifying the location.

[0031] Reference Figure 1-4In a preferred embodiment, the pneumatic spiral sampling device includes a pneumatic plate 31, a spiral rod 32, a fixed plate 33, a movable port 34, a movable ring 35, a threaded hole 36, a sampling head 37, a sampling port 38, a fixed plate 39, a sampling plate 391, and a stratified liquid extraction mechanism. The pneumatic plate 31 is movably connected to the top of the exploration box 1, and the outer side of the pneumatic plate 31 is tightly fitted to the inner wall of the exploration box 1. The spiral rod 32 is disposed inside the exploration box 1, and the top of the spiral rod 32 is movably connected to the bottom of the pneumatic plate 31. The fixed plate 33 is fixedly connected to the inner wall of the exploration box 1, and the top of the fixed plate 33 has a movable port 34. The movable ring 35 is movably connected to the sliding plate 36. Inside the movable port 34, a threaded hole 36 is provided at the top of the movable ring 35. The sampling head 37 is connected to the bottom of the spiral rod 32. The sampling head 37 is located at the bottom of the fixed plate 33. Sampling ports 38 are opened on both sides of the sampling head 37. Fixed plates 39 are installed on both sides of the sampling head 37, located outside the sampling ports 38. Sampling plates 391 are fixedly connected to the outside of the fixed plates 39. The layered liquid sampling mechanism is fixedly connected to the right side of the exploration box 1. Since the spiral rod 32 is movably connected to the bottom of the pneumatic plate 31 through the fixed sleeve 28 and the connecting shaft 29, and the spiral rod 32 is threadedly connected to the movable port 34 and the fixed plate 33 through the threaded hole 36, when the pneumatic plate 31 is subjected to air pressure thrust, the layered liquid sampling mechanism is fixedly connected to the bottom of the exploration box 1. During the downward movement of the probe box 1, the spiral rod 32, under the influence of the thrust of the pneumatic plate 31 and the spiral guiding force of the threaded hole 36, drives the sampling head 37 to rotate and move downward. This, in turn, drives the sampling plate 391 to rotate via the fixing plate 39, allowing the fixing plate 39 to work in conjunction with the sampling plate 391 and the sampling port 38 to excavate and sample the riverbed soil layer. The top of the push rod 5 has a sliding opening 8, inside which a slide frame 9 is slidably connected. The top of the slide frame 9 is fixedly connected to the bottom of the layered plate 42. A first spring 10 is installed inside the sliding opening 8, with one end fixedly connected to the inner wall of the sliding opening 8 and the other end fixedly connected to the surface of the slide frame 9. This allows the magnetic plate 7 to follow... During the downward movement of the pneumatic plate 31, when the magnetic strip 6, in conjunction with the push rod 5, pushes the sealing plate 44 to move and open the liquid intake port 43, a sliding connection is established between the push rod 5 and the layered plate 42. This ensures the stability of the push rod 5 in pushing the sealing plate 44. Simultaneously, after the magnetic plate 7 and the magnetic strip 6 are misaligned, the first spring 10 applies a reset thrust to the push rod 5 through the slide 9, causing the push rod 5 to drive the magnetic strip 6 to reset and drive the sealing plate 44 to close and seal the liquid intake port 43. This avoids the situation where the push rod 5, in conjunction with the sealing plate 44, has difficulty in resetting the sealing plate 44 to close and seal the liquid intake port 43, ensuring that the cavity of the sampling box 41 is in a closed and sealed state after sampling.

[0032] Reference Figure 9In a preferred embodiment, a receiving opening 11 is provided on the right side of the top of the fixed plate 33, and a positioning cavity 12 is provided on the left side of the inner wall of the receiving opening 11. A positioning strip 13 is movably connected inside the positioning cavity 12, and a positioning groove 14 is provided on the left side of the magnetic plate 7. This provides a descending receiving space for the magnetic plate 7 after it moves to the lowest point and contacts the fixed plate 33 along with the pneumatic plate 31. This avoids the situation where the magnetic plate 7 rigidly abuts against the fixed plate 33 during the descent of the pneumatic plate 31, which would restrict the range of motion of the pneumatic plate 31. At the same time, the magnetic plate 7 enters the receiving cavity as it descends with the pneumatic plate 31. After entering the cavity 11, the positioning strip 13 slides to the left under the magnetic attraction of the magnetic plate 7, sliding out of the positioning cavity 12 and into the positioning groove 14. The positioning groove 14 then positions the magnetic plate 7 against the cavity 11, causing the pneumatic plate 31 to engage with the connecting shaft 29 through the threaded hole 36 via the fixing sleeve 28. This drives the screw rod 32 to work with the sampling head 37 and sampling disc 391 to excavate and sample the riverbed soil. After sampling, as the pneumatic plate 31 rises, the magnetic plate 7 separates from the pneumatic plate 31, preventing the magnetic plate 7 from moving upwards again with the pneumatic plate 31 during its upward movement, thus avoiding the magnetic strip 6 passing through again. When push rod 5 moves sealing plate 44 to open liquid intake port 43, magnetic plate 7 and pneumatic plate 31 automatically separate at the descent limit. A movable port 15, connected to positioning cavity 12, is provided on the right side of the bottom of fixed plate 33. Movable handle 16 is movably connected inside movable port 15. The top of movable handle 16 passes through movable port 15 into the interior of positioning cavity 12. The right side of movable handle 16 is fixedly connected to the left side of positioning strip 13. After the entire exploration box 1 has completed its operation, it can be positioned on the shore to sample the riverbed soil and surface water inside sampling head 37 and liquid intake box 41. After this, magnetic plate 7 needs to be separated from the receiving port 1. When the magnetic connection between the positioning strip 13 and the pneumatic plate 31 is re-established, it provides the user with a force-applying medium to move the positioning strip 13 out of the positioning groove 14 and into the positioning cavity 12. This facilitates the user's movement and reset of the positioning strip 13, ensuring that the magnetic plate 7 and the receiving port 11 are in an active state. This guarantees that the magnetic connection between the magnetic plate 7 and the pneumatic plate 31 can be maintained and allowed to rise with the pneumatic plate 31 and detach from the receiving port 11. This avoids the situation where the positioning strip 13 is difficult to move out of the positioning groove 14 due to the magnetic attraction of the magnetic plate 7 during operation, which would otherwise prevent the magnetic plate 7 from being magnetically connected to the pneumatic plate 31 and rising with the pneumatic plate 31 to detach from the receiving port 11.

[0033] Reference Figure 7In a preferred embodiment, the top of the fixed plate 33 is provided with slots 17 on both sides that communicate with the movable opening 34. A locking block 18 is movably connected inside the slot 17, and the inner side of the locking block 18 is fixedly connected to the outer side of the movable ring 35. An electromagnet 19 is fixedly connected to the bottom of the inner wall of the slot 17. During the process of the movable ring 35 driving the spiral rod 32 to move downwards due to the pneumatic plate 31 through the threaded hole 36, and thus driving the sampling head 37 to cooperate with the sampling piece 391 to excavate and sample the riverbed soil, the movable ring 35 is engaged with the movable opening 34. The positioning mechanism prevents the movable ring 35 from rotating due to the rotational force of the screw rod 32 during the operation of the threaded hole 36 and the screw rod 32. This would cause the screw rod 32 to drive the movable ring 35 to rotate inside the movable opening 34, preventing the threaded hole 36 from engaging with the screw rod 32. Simultaneously, when the movable ring 35 needs to be fixed inside the movable opening 34, the electromagnet 19 uses the locking block 18 to magnetically position the movable ring 35, ensuring its fixation within the movable opening 34. Both sides of the bottom of the exploration box 1 are movably connected to closing plates 20, with the top of the closing plates 20 fixed. A ladder block 21 is connected, and a wedge block 22 is movably connected to the top of the inner side of the ladder block 21. Lifting ports 23 are opened on both sides of the top of the fixed plate 33. A lifting rod 24 is movably connected inside the lifting port 23. The bottom of the lifting rod 24 is fixedly connected to the top of the wedge block 22, enabling the exploration box 1 to close its interior during descent. The pneumatic plate 31 moves downwards and, through the fixed sleeve 28, engages with the connecting shaft 29 via the threaded hole 36, driving the spiral rod 32 to work with the sampling head 37 and sampling disc 391 to excavate and sample the riverbed soil layer. During this process, the lifting rod 24 first contacts the pneumatic plate 31. The lifting rod 24 is driven by the downward pushing force of the pneumatic plate 31, which drives the wedge block 22 to move downward. Since the step block 21 and the wedge block 22 are in contact with each other at an inclined surface, the wedge block 22 applies a pushing force to the step block 21 during the descent, causing the step block 21 to push the closing plate 20 to move to both sides and open the bottom of the exploration box 1. This allows the pneumatic plate 31 to move downward and, through the fixed sleeve 28 and the connecting shaft 29, engages with the threaded hole 36, driving the spiral rod 32 to drive the sampling head 37 and sampling plate 391. This allows the exploration box 1 to reach the riverbed soil layer for excavation and sampling, thus achieving synchronization between the opening and closing of the exploration box 1 and the pneumatic plate 31.

[0034] Reference Figure 4In a preferred embodiment, connecting grooves 25 are provided on both sides of the top of the closing plate 20. A connecting block 26 is movably connected inside the connecting groove 25. The top of the connecting block 26 is fixedly connected to the bottom of the exploration box 1. A second spring 27 is provided inside the connecting groove 25. One end of the second spring 27 is fixedly connected to the inner wall of the connecting groove 25, and the other end of the second spring 27 is fixedly connected to the surface of the connecting block 26. This allows the wedge block 22 to move downward under the downward pushing force of the lifting rod 24 and the pneumatic plate 31, so that the wedge block 22... During the descent, a pushing force is applied to the ladder block 21, causing it to push the closing plate 20 to move laterally to open the bottom of the exploration box 1. During this process, the movable closing plate 20 is connected to the exploration box 1 to prevent the closing plate 20 from separating from the exploration box 1 or shifting its position. Furthermore, after the pneumatic plate 31 rises, the second spring 27 applies an inward pushing force to the closing plate 20 via the connecting block 26, causing the closing plate 20 to reset and close. The ladder block 21 and the wedge block 22 are in contact with an inclined surface, while the closing plate 2... The step 21 applies a pushing force to the wedge 22, causing the wedge 22 to rise and reset, which in turn drives the lifting rod 24 to rise and reset. A fixed sleeve 28 is fixedly connected to the bottom of the pneumatic plate 31. The fixed sleeve 28 has a T-shaped hollow interior and a connecting shaft 29 is movably connected inside. The bottom of the connecting shaft 29 is fixedly connected to the top of the screw rod 32. This allows the screw rod 32 to be driven by the threaded guiding force of the threaded hole 36 and the downward pushing force of the pneumatic plate 31, thus driving the sampling head 37 to rotate in conjunction with the sampling plate 391 during the riverbed soil excavation and sampling process. The mechanism provides a rotating connection between the screw rod 32 and the pneumatic plate 31. This prevents the screw rod 32 from being affected by the threaded guiding force of the threaded hole 36 and the downward thrust of the pneumatic plate 31. During the sampling process of driving the sampling head 37 and sampling plate 391 to rotate and excavate the riverbed soil layer, the top of the screw rod 32 may sway. At the same time, during the upward movement of the pneumatic plate 31, the mechanism provides a load-bearing connection between the screw rod 32 and the pneumatic plate 31. This prevents the screw rod 32 and the pneumatic plate 31 from separating and provides a rotating connection between them.

[0035] Specifically, the working process or principle of this geochemical pneumatic spiral sampling device is as follows: During use, the exploration box 1 is connected to an external air source via an external connecting pipe and connector 2. The exploration box 1 is then lowered to the top of the riverbed and in contact with it. At this time, air is pumped into the exploration box 1 through the connecting pipe and connector 2. The pneumatic plate 31 moves downward under the thrust of the incoming air, causing the magnetic plate 7 to move downward as well. At this point, the lifting rod 24 contacts the top and bottom of the pneumatic plate 31. The lifting rod 24, under the downward thrust of the pneumatic plate 31, causes the wedge 22 to move downward, applying a downward thrust to the ladder block 21. During this thrust, the wedge 22 and the ladder block 21 are in contact at an inclined surface. Upon contact, the thrust of the step block 21 and the wedge block 22 causes the closing plate 20 to move to both sides, opening the bottom of the exploration box 1. At this time, the connecting block 26 moves inside the connecting groove 25, making a movable connection between the closing plate 20 and the exploration box 1. The second spring 27 contracts under the influence of the outward movement force of the closing plate 20. Simultaneously, the spiral rod 32 moves downward with the pneumatic plate 31 and contacts the threaded hole 36 at the top of the movable opening 34. Under the influence of the thread force of the threaded hole 36 and the downward thrust of the pneumatic plate 31, the spiral rod 32 rotates and drives the sampling head 37 to rotate downward. At this time, the locking block 18 cooperates with the locking groove 17 to lock and stabilize the movable ring 35 and the movable opening 34, so that the sampling head 37 drives the sampling plate 391 to rotate through the fixing plate 39. As the sampling head 37 rotates downwards, the sampling plate 391 excavates the bottom soil layer of the riverbed. The excavated soil layer is collected through the sampling port 38 by the rotational force of the sampling head 37. At this time, because the fixed sleeve 28 has a T-shaped hollow design and the movable shaft rotates with the screw rod 32 inside the fixed sleeve 28, the screw rod 32 is connected to the pneumatic plate 31 for rotational operation. Simultaneously, because the magnetic plate 7 and magnetic strip 6 are of the same pole and opposite each other, during the process of the pneumatic plate 31 pushing the screw rod 32 to drive the sampling head 37 to cooperate with the sampling plate 391 in sampling the riverbed soil layer, as the magnetic plate 7 moves downwards with the pneumatic plate 31, when the magnetic plate 7 and magnetic strip 6 are on the same horizontal line, the magnetic strip... Under the influence of the same-pole magnetic thrust of the magnetic plate 7, the magnetic strip 6 is caused to push the sealing plate 44 to the right through the push rod 5. At this time, the slide 9 moves inside the sliding opening 8 to perform translational connection between the push rod 5 and the layered plate 42. The first spring 10 is contracted under the influence of the moving force of the push rod 5, opening the liquid intake port 43 so that the surface water enters the cavity of the liquid intake box 41 separated by the layered plate 42 through the liquid intake port 43. After the magnetic plate 7 moves downward with the pneumatic plate 31 and is misaligned with the magnetic strip 6, the first spring 10 and the slide 9 apply a reset thrust to the push rod 5 and drive the sealing plate 44 to move to the left to close and seal the liquid intake port 43. As the magnetic plate 7 moves downward with the pneumatic plate 31, the magnetic plate 7 applies the same-pole magnetic thrust to the magnetic strip 6 one by one, causing the liquid intake port 43 to open one by one.The sampling box 41 performs stratified sampling of surface water. When the pneumatic plate 31 moves downward to its limit and contacts the fixed plate 33, the magnetic plate 7 enters the receiving port 11. At this time, the positioning strip 13, influenced by the magnetic attraction of the magnetic plate 7, moves to the right and enters the positioning groove 14 to perform the insertion and positioning work between the magnetic plate 7 and the receiving port 11. The moving handle 16 follows the positioning strip 13 and moves in the moving port 15. At this time, the riverbed soil layer and surface water are sampled simultaneously. Then, the air between the pneumatic plate 31 and the exploration box 1 is drawn out through the connecting pipe and the connecting head 2, causing the pneumatic plate 31 to drive the screw through the fixed sleeve 28 in conjunction with the movable column. As the rotary rod 32 and the sampling head 37 move upwards after sampling, the movable ring 35 drives the locking block 18 to move upwards along with the rotary rod 32 and separate from the locking slot 17. At this time, due to the insertion positioning force between the positioning strip 13 and the positioning slot 14, the magnetic plate 7 separates from the pneumatic plate 31 and remains inside the receiving port 11. Simultaneously, the second spring 27 applies a resetting force to the closing plate 20 through the connecting block 26, causing the closing plate 20 to close the bottom of the exploration box 1. The ladder block 21 moves along with the closing plate 20 and applies a pushing force to the wedge block 22, causing the wedge block 22 to move upwards and drive the lifting rod 24 to reset. Subsequently, when it is necessary to retrieve the riverbed soil and surface water samples stored inside the sampling head 37 and the liquid collection box 41, first lay the exploration box 1 flat with the liquid collection box 41 at the bottom of the exploration box 1, and prepare a sample box in advance to be placed outside the sealing plate 44. Then, inflate the exploration box 1 through the connecting pipe and the connecting head 2 to make the pneumatic plate 31 repeat the sampling process, open the exploration box 1 and let the sampling head 37 extend out of the exploration box 1, twist the sampling head 37 to separate the sampling head 37 from the screw rod 32, and take out the riverbed soil inside the sampling head 37. Then pull the sealing plate 44 to take out the surface water sample inside the liquid collection box 41. The liquid collection box can then be removed. The riverbed soil and surface water samples taken from inside the sampling head 37 are retrieved. After the riverbed soil and surface water samples are retrieved, the positioning bar 13 is moved out of the positioning groove 14 and into the positioning cavity 12 by the moving handle 16, so that the magnetic plate 7 is reconnected to the pneumatic plate 31. At the same time, the screw rod 32 drives the movable rod into the movable opening 34, and the locking block 18 enters the inner wall of the locking groove 17. Then, the electromagnet 19 is energized, so that the electromagnet 19 applies a magnetic attraction force to the movable ring 35 through the locking block 18. Then, the air between the pneumatic plate 31 and the exploration box 1 is sucked out, so that the pneumatic plate 31 drives the screw rod 32 and the sampling head 37 to reset.

[0036] It should be noted that the electromagnet 19 is a device or equipment existing in the prior art, or a device or equipment that can be implemented by the prior art. Its power supply, specific composition and principle are clear to those skilled in the art, so they will not be described in detail here.

Claims

1. A geochemical pneumatic spiral sampling device, comprising an exploration box (1) and a connector (2), wherein the connector (2) is installed on the top of the exploration box (1) and is connected to the exploration box (1), characterized in that, A pneumatic spiral sampling device is installed on the top of the inner wall of the exploration box (1), and the pneumatic spiral sampling device is movably connected to the top of the inner wall of the exploration box (1). A pneumatic spiral sampling device, comprising: Pneumatic plate (31); the pneumatic plate (31) is movably connected to the top inside the exploration box (1), and the outer side of the pneumatic plate (31) is tightly fitted to the inner wall of the exploration box (1); The helical rod (32) is located inside the exploration box (1), and the top of the helical rod (32) is movably connected to the bottom of the pneumatic plate (31). Fixing plate (33); the fixing plate (33) is fixedly connected to the inner wall of the exploration box (1), and the top of the fixing plate (33) is provided with an opening (34). Movable ring (35); The movable ring (35) is movably connected inside the movable opening (34), and the top of the movable ring (35) is provided with a threaded hole (36). The screw rod (32) is threadedly connected to the movable opening (34) and the fixed plate (33) through the threaded hole (36). Sampling head (37); the sampling head (37) is connected to the bottom of the screw rod (32), and the sampling head (37) is located at the bottom of the fixing plate (33); Sampling port (38); The sampling port (38) is located on both sides of the sampling head (37), and a fixing plate (39) located outside the sampling port (38) is installed on both sides of the sampling head (37). A sampling plate (391) is fixedly connected to the outside of the fixing plate (39). Layered liquid extraction mechanism; the layered liquid extraction mechanism is fixedly connected to the right side of the exploration box (1); The layered liquid extraction mechanism includes a liquid extraction box (41), a layering plate (42), a liquid extraction port (43), and a sealing plate (44). The liquid extraction box (41) is fixedly connected to the right side of the exploration box (1). The layering plate (42) divides the liquid extraction box (41) into three liquid chambers. The liquid extraction port (43) is opened on the right side of the liquid extraction box (41). There are several liquid extraction ports (43), and the several liquid extraction ports (43) are distributed at equal distances. The sealing plate (44) is movably connected to the outside of the liquid extraction port (43). Push rods (5) are movably connected to the top of the inner wall of the liquid collection box (41) and the bottom of the layered plate (42). The right side of the push rod (5) is fixedly connected to the left side of the sealing plate (44). A magnetic strip (6) is fixedly connected to the left side of the push rod (5). A magnetic plate (7) is movably connected to the right side of the bottom of the pneumatic plate (31). The magnetic plate (7) and the magnetic strip (6) are opposite each other with the same pole. The push rod (5) has a sliding opening (8) at the top. A slide frame (9) is slidably connected inside the sliding opening (8). The top of the slide frame (9) is fixedly connected to the bottom of the layered plate (42). A first spring (10) is provided inside the sliding opening (8). One end of the first spring (10) is fixedly connected to the inner wall of the sliding opening (8), and the other end of the first spring (10) is fixedly connected to the surface of the slide frame (9). The top right side of the fixed plate (33) is provided with a receiving opening (11), and the left side of the inner wall of the receiving opening (11) is provided with a positioning cavity (12). The positioning cavity (12) is movably connected with a positioning strip (13). The left side of the magnetic plate (7) is provided with a positioning groove (14). When the magnetic plate (7) enters the receiving opening (11), the positioning strip (13) is affected by the magnetic attraction of the magnetic plate (7) and moves to the right into the positioning groove (14) and performs insertion positioning between the magnetic plate (7) and the receiving opening (11). The top of the fixed plate (33) has slots (17) on both sides that are connected to the movable opening (34). The slots (17) are movably connected to the inside of the slots (17). The inner side of the slots (18) is fixedly connected to the outer side of the movable ring (35). The bottom of the inner wall of the slots (17) is fixedly connected to an electromagnet (19).

2. The geochemical pneumatic spiral sampling device according to claim 1, characterized in that, The bottom right side of the fixed plate (33) is provided with a movable port (15) that communicates with the positioning cavity (12). A movable handle (16) is movably connected inside the movable port (15). The top of the movable handle (16) passes through the movable port (15) into the interior of the positioning cavity (12). The right side of the movable handle (16) is fixedly connected to the left side of the positioning strip (13).

3. The geochemical pneumatic spiral sampling device according to claim 1, characterized in that, The exploration box (1) has a closing plate (20) movably connected to both sides of its bottom. A ladder block (21) is fixedly connected to the top of the closing plate (20). A wedge block (22) is movably connected to the top of the inner side of the ladder block (21). A lifting port (23) is opened on both sides of the top of the fixed plate (33). A lifting rod (24) is movably connected inside the lifting port (23). The bottom of the lifting rod (24) is fixedly connected to the top of the wedge block (22).

4. A geochemical pneumatic spiral sampling device according to claim 3, characterized in that, The top of the closed plate (20) is provided with connecting grooves (25) on both sides. A connecting block (26) is movably connected inside the connecting groove (25). The top of the connecting block (26) is fixedly connected to the bottom of the exploration box (1). A second spring (27) is provided inside the connecting groove (25). One end of the second spring (27) is fixedly connected to the inner wall of the connecting groove (25), and the other end of the second spring (27) is fixedly connected to the surface of the connecting block (26).

5. A geochemical pneumatic spiral sampling device according to any one of claims 1 to 4, characterized in that, The bottom of the pneumatic plate (31) is fixedly connected to a fixed sleeve (28). The inside of the fixed sleeve (28) is T-shaped and hollow. The inside of the fixed sleeve (28) is movably connected to a connecting shaft (29). The bottom of the connecting shaft (29) is fixedly connected to the top of the screw rod (32).

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