Sampling device for geological exploration and use method thereof

Abstract

The invention relates to the technical field of geological exploration, and discloses a sampling device for geological exploration and a use method thereof, the device comprises a soil sampling drill body, a pedal type power-assisted mechanism, a soil humidifying mechanism and a hole landfill assembly; a plurality of occlusion blocks are arranged on the outer wall of the soil sampling drill body; the pedal type power-assisted mechanism comprises a disc body and a self-resetting pedal assembly; the self-resetting pedal assembly is installed on the disc body, an elastic pressing plate and a limiting protruding block are installed at the end, away from the disc body, of the self-resetting pedal assembly, the limiting protruding block makes contact with the top face of the elastic pressing plate, and the elastic pressing plate is detachably connected with the meshing block. The soil humidifying mechanism is mounted in the soil sampling drill body and is used for spraying water to soil; the hole filling assembly is mounted at the bottom of the tray body; wherein a penetrating opening is formed in the center of the disc body, and the soil sampling drill body penetrates through the penetrating opening. The device is simple in structure and convenient to carry, the soil drilling and sampling effect can be improved, and the purposes of energy conservation and environmental protection are achieved.

Description

Technical Field

[0001] The present invention relates to the technical field of geological exploration, and in particular to a geological exploration sampling device and a use method thereof. Background Art

[0002] Geological exploration is a research activity that uses various means and methods to survey and detect geology, determine the appropriate bearing layer, determine the foundation type based on the bearing capacity of the bearing layer, and calculate the foundation parameters. It is an investigation and research activity that investigates and studies the rocks, strata, structures, minerals, hydrology, landforms, and other geological conditions in a certain area to determine the quality and quantity of minerals, as well as the technical conditions for mining and utilization, and to provide the mineral reserves and geological data needed for mine construction design. During geological exploration, it is sometimes necessary to collect and process geological soil. There are various equipment for collecting geological soil, including soil auger. Workers insert the auger into the soil location where it is needed and collect and process the soil.

[0003] However, existing soil drills for geological exploration have the following problems during use: existing soil drills mainly include manual and electric types. The former has a simple structure and is easy to carry and use, but when the soil is hard, collection is time-consuming and labor-intensive. The latter uses an electric drive method for collection, which has high collection efficiency, but is generally heavy and inconvenient to carry and use. In addition, after sampling the soil, holes will be left at the sampling location, which can easily damage the plant growth at the sampling location.

[0004] Therefore, a sampling device for geological exploration and a method for using the same are proposed. Summary of the Invention

[0005] The object of the present invention is to provide a sampling device for geological exploration and a method of using the same, in order to solve or improve at least one of the above-mentioned technical problems.

[0006] To achieve the above object, the present invention provides the following solution: The present invention provides a sampling device for geological exploration, comprising:

[0007] A soil drill body, wherein the outer wall of the soil drill body is provided with a plurality of bite blocks;

[0008] A foot-operated power-assisting mechanism, comprising a disc body and a self-resetting pedal assembly; the self-resetting pedal assembly is mounted on the disc body, an elastic pressing plate and a limiting protrusion are mounted on the end of the self-resetting pedal assembly away from the disc body, the limiting protrusion contacts the top surface of the elastic pressing plate, and the elastic pressing plate is detachably connected to the bite block;

[0009] a soil wetting mechanism installed in the soil auger body and used for spraying water onto the soil;

[0010] A hole filling component is installed at the bottom of the tray;

[0011] Wherein, a through opening is opened at the center of the disc body, and the soil drill body passes through the through opening.

[0012] According to a geological prospecting sampling device provided by the present invention, the soil drilling body comprises:

[0013] A hollow handle, wherein the top surface of the hollow handle is provided with two symmetrically arranged guide grooves;

[0014] A standpipe, wherein the interior of the standpipe is hollow, the standpipe is fixedly mounted on the bottom of the hollow handle, and the standpipe is in communication with the inner cavity of the hollow handle;

[0015] A soil burrowing cone, which is fixedly mounted at the bottom of the vertical pipe; a soil sampling cavity is provided in the soil burrowing cone;

[0016] Among them, a plurality of engaging blocks are provided on the outer walls of the vertical pipe and the plunging cone, the soil wetting mechanism is installed in the hollow handle, and the plunging cone and the vertical pipe both pass through the through opening.

[0017] According to a sampling device for geological exploration provided by the present invention, the soil wetting mechanism includes a water storage chamber, a one-way drainage assembly, and two pressure plates. The water storage chamber is provided in the middle section of the inner cavity of the hollow handle; the two pressure plates are respectively located on both sides of the water storage chamber, and both pressure plates are slidably connected to the inner wall of the hollow handle.

[0018] The pressure plate is equipped with a moving block through a connecting rod, and a sliding rod is installed on the top of the moving block. The two sliding rods are respectively slidably connected to the two guide grooves, and the top of the sliding rod extends out of the hollow handle. The one-way drainage component is installed in the vertical pipe, and the top of the one-way drainage component is connected to the water storage chamber.

[0019] According to a geological prospecting sampling device provided by the present invention, the one-way drainage assembly includes:

[0020] A water pipe, wherein a plurality of the water pipes are provided, and the tops of the plurality of water pipes are fixedly connected to and communicated with the water storage cavity;

[0021] A water outlet pan is installed at the bottom of the inner wall of the vertical pipe, and the bottoms of the plurality of water guide pipes are fixedly connected to and communicated with the water outlet pan.

[0022] According to a geological prospecting sampling device provided by the present invention, the self-resetting pedal assembly includes:

[0023] A support plate is mounted on the outer wall of the disk; two side plates are mounted on the top of the support plate, and a rotating shaft is rotatably connected between the two side plates;

[0024] A lower pedal, wherein the elastic pressing plate and the limiting protrusion are mounted on one end of the lower pedal, and the other end of the lower pedal is fixedly connected to the rotating shaft;

[0025] A reset spring piece is installed between the lower pedal and the support plate.

[0026] According to a sampling device for geological exploration provided by the present invention, the elastic pressing plate includes a card plate and an elastic connecting blade, the elastic connecting blade is installed at the end of the lower pedal away from the rotating shaft, the card plate is installed at the end of the elastic connecting blade away from the lower pedal, the limiting protrusion is in contact with the top surface of the card plate, and the card plate and the bite block are detachably connected.

[0027] According to a sampling device for geological exploration provided by the present invention, the hole filling assembly includes two groups of oppositely arranged arc scraping plates, the two arc scraping plates are respectively arranged on both sides of the through-opening, and one of the arc scraping plates is located above the other arc scraping plate; the back sides of the two arc scraping plates are respectively installed with outer plates through stacked spring sheets, and the two outer plates are installed at the bottom of the disk body.

[0028] According to a sampling device for geological exploration provided by the present invention, the water outlet tray includes a chassis installed at the bottom of the inner wall of the vertical pipe, the bottoms of several water pipes are fixedly connected to and communicated with the chassis, and several nozzles are installed on the chassis, and the water outlets of the nozzles are installed with one-way sealing blades.

[0029] According to a sampling device for geological exploration provided by the present invention, a plurality of conical protrusions are installed at the bottom of the disc body, and the plurality of conical protrusions are arranged at equal intervals in the circumferential direction.

[0030] The present invention also provides a method for using a sampling device for geological exploration, comprising the following steps:

[0031] Step 1: Insert the disc into the target sampling position;

[0032] Step 2: Insert the bottom of the auger body into the hole;

[0033] Step 3: Press down the soil auger body and step on the self-reset pedal assembly with your foot. Use the limit block to limit the elastic pressing plate from folding upward, so that the elastic pressing plate is inserted into the bite block to achieve foot-assisted soil drilling; use the soil wetting mechanism to spray water on the hard soil to make it slippery;

[0034] Step 4: Release your foot to reset the pedal assembly. The elastic pressing plate will fold downward and disengage from the engaging block.

[0035] Step 5: Repeat steps 3 to 4 until the auger body is inserted into the target sampling depth;

[0036] Step 6: After sampling, pull the auger body upward and out of the hole, and use the hole filling assembly to scrape the soil around the hole and fill it into the hole.

[0037] The present invention discloses the following technical effects:

[0038] The present invention can drive the elastic pressing plate to engage with the bite block by stepping on the self-resetting pedal assembly, so that the soil drill body can be pressed down by the foot, thereby achieving the purpose of assisting soil drilling. The soil drilling effect can be improved by combining with the force applied by the arm. The present invention has a simple structure and is easy to carry. It can improve the effect of soil drilling and sampling and achieve the purpose of energy saving and environmental protection.

[0039] The present invention can spray water onto the soil through the soil wetting mechanism, thereby wetting the soil collection position when the soil is relatively hard, thereby improving the efficiency of soil drilling and sampling; when the soil collection is completed, the soil drilling body is pulled out, and during the pulling-out process, the hole filling component can automatically fill the hole, thereby ensuring the integrity of the soil; compared with the electric soil drilling, the present invention has the advantages of being easy to carry and use, energy-saving and environmentally friendly, and is particularly suitable for soil sampling in the process of geological exploration. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0041] Figure 1 It is a structural schematic diagram of the present invention;

[0042] Figure 2 This is a schematic structural diagram of the soil drill body of the present invention;

[0043] Figure 3 Schematic diagram of the structure of the foot-operated power-assisting mechanism of the present invention;

[0044] Figure 4 Schematic diagram of the internal structure of the hollow handle of the present invention;

[0045] Figure 5 This is a schematic structural diagram of the hole filling assembly of the present invention;

[0046] Figure 6 It is a structural schematic diagram of the water outlet tray in the present invention.

[0047] Among them, 1. hollow handle; 2. vertical pipe; 3. guide groove; 4. soil piercing cone; 5. soil extraction cavity; 6. bite block; 7. plate; 8. support plate; 9. side plate; 10. lower pedal; 11. reset spring; 12. elastic pressing plate; 13. through-hole; 14. water storage cavity; 15. pressure plate; 16. moving block; 17. slide rod; 18. water guide pipe; 19. water outlet tray; 20. conical protrusion; 21. elastic connecting blade; 22. card plate; 23. limit protrusion; 24. chassis; 25. nozzle; 26. one-way blocking blade; 27. arc-shaped scraper plate; 28. stacked spring; 29. ​​outer plate. DETAILED DESCRIPTION

[0048] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0049] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0050] Reference Figures 1-6 The present invention provides a sampling device for geological exploration, comprising:

[0051] The soil drill body, the outer wall of which is provided with a plurality of bite blocks 6;

[0052] The foot-operated power-assisting mechanism includes a disc body 7 and a self-resetting pedal assembly; the self-resetting pedal assembly is mounted on the disc body 7, and an elastic pressing plate 12 and a limiting protrusion 23 are mounted on the end of the self-resetting pedal assembly away from the disc body 7. The limiting protrusion 23 contacts the top surface of the elastic pressing plate 12, and the elastic pressing plate 12 is detachably connected to the bite block 6;

[0053] A soil wetting mechanism is installed in the soil auger body and is used to spray water on the soil;

[0054] Hole filling assembly, the hole filling assembly is installed at the bottom of the disc body 7;

[0055] A through hole 13 is provided at the center of the disc 7, and the soil drill body passes through the through hole 13;

[0056] With such a configuration, the present invention can drive the elastic pressing plate 12 to engage with the bite block 6 by stepping on the self-resetting pedal assembly, so that the soil drill body can be pressed down by the foot, thereby achieving the purpose of assisting soil drilling. In combination with the force applied by the arm, the soil drilling effect can be improved. The present invention has a simple structure and is easy to carry, and can improve the effect of soil drilling and sampling and achieve the purpose of energy saving and environmental protection.

[0057] The present invention can spray water onto the soil through the soil wetting mechanism, thereby wetting the soil collection position when the soil is relatively hard, thereby improving the efficiency of soil drilling and sampling; when the soil collection is completed, the soil drilling body is pulled out, and during the pulling-out process, the hole filling component can automatically fill the hole, thereby ensuring the integrity of the soil; compared with the electric soil drilling, the present invention has the advantages of being easy to carry and use, energy-saving and environmentally friendly, and is particularly suitable for soil sampling in the process of geological exploration.

[0058] To further optimize the solution, the soil drill body includes:

[0059] A hollow handle 1, the top surface of which is provided with two symmetrically arranged guide grooves 3;

[0060] The standpipe 2 is hollow inside and is fixedly mounted on the bottom of the hollow handle 1. The standpipe 2 is in communication with the inner cavity of the hollow handle 1.

[0061] The burial cone 4 is fixedly mounted at the bottom of the vertical pipe 2; a soil sampling cavity 5 is provided in the burial cone 4;

[0062] Among them, a plurality of bite blocks 6 are provided on the outer walls of the vertical pipe 2 and the plunging cone 4, the soil wetting mechanism is installed in the hollow handle 1, and the plunging cone 4 and the vertical pipe 2 are penetrated by the through opening 13;

[0063] The vertical pipe 2 is a connecting component, which is hollow inside and connected to the inner cavity of the hollow handle 1. On the one hand, it can guide the water flow, and on the other hand, it provides supporting strength for the soil drill body; the soil sampling cavity 5 at the bottom of the plunging cone 4 is the area where soil samples are actually collected; when the device is working, the plunging cone 4 is the first to cut into the soil by virtue of its sharp shape, and the bite block 6 on the outer wall of the vertical pipe 2 and the plunging cone 4 can be engaged with the elastic pressing plate 12 under the action of the foot-operated power-assisting mechanism, thereby enhancing the stability and force transmission effect when the soil drill body is pressed down, so that the operator can more easily drill the soil drill body into the specified depth of the soil for sampling.

[0064] According to a further optimized solution, the soil humidification mechanism includes a water storage chamber 14, a one-way drainage assembly, and two pressure plates 15. The water storage chamber 14 is located in the middle section of the inner cavity of the hollow handle 1; the two pressure plates 15 are located on both sides of the water storage chamber 14, and both pressure plates 15 are slidably connected to the inner wall of the hollow handle 1.

[0065] The pressure plate 15 is equipped with a moving block 16 through a connecting rod, and a sliding rod 17 is installed on the top of the moving block 16. The two sliding rods 17 are respectively slidably connected to the two guide grooves 3, and the top of the sliding rod 17 extends out of the hollow handle 1. The one-way drainage component is installed in the vertical pipe 2, and the top of the one-way drainage component is connected to the water storage chamber 14.

[0066] To further optimize the solution, the water storage cavity 14 is made of rubber material and the surface is processed into a laminated structure. The water storage cavity 14 is filled with water, which makes it easy to squeeze the water storage cavity 14 and conduct the water inside to the outside, thereby achieving the purpose of humidifying the soil.

[0067] To further optimize the solution, the one-way drainage components include:

[0068] A plurality of water pipes 18 are provided, and the tops of the plurality of water pipes 18 are fixedly connected to and communicated with the water storage chamber 14;

[0069] The water outlet pan 19 is installed at the bottom of the inner wall of the vertical pipe 2. The bottoms of the plurality of water pipes 18 are fixedly connected to and communicate with the water outlet pan 19.

[0070] In this embodiment, the number of the water pipe 18 and the number of the nozzle 25 are preferably two;

[0071] The water storage chamber 14 stores water for moistening the soil; when the operator presses down on the soil auger body, the hand holding the hollow handle 1 will apply pressure to the pressure plate 15, and the pressure plate 15 drives the moving block 16 to move through the connecting rod. The slide bar 17 on the top of the moving block 16 slides in the guide groove 3 to ensure the stability of the movement of the pressure plate 15. The pressure plate 15 squeezes the water storage chamber 14, so that the water in the chamber is discharged through the one-way drainage component under the action of pressure. The water pipe 18 in the one-way drainage component leads the water from the water storage chamber 14 to the water outlet tray 19, and the nozzle 25 on the water outlet tray 19 sprays the water evenly to the soil collection position. The two one-way blocking blades 26 at the water outlet of the nozzle 25 can prevent foreign matter such as soil particles from entering the pipe, ensure the one-way output of water flow, effectively wet and slippery the hard soil, and reduce the drilling resistance of the soil auger body.

[0072] Further optimization scheme, the self-resetting pedal assembly includes:

[0073] The support plate 8 is mounted on the outer wall of the disk body 7; the top of the support plate 8 is equipped with two side plates 9 arranged side by side, and a rotating shaft is rotatably connected between the two side plates 9;

[0074] The lower pedal 10, the elastic pressing plate 12 and the limiting protrusion 23 are installed at one end of the lower pedal 10, and the other end of the lower pedal 10 is fixedly connected to the rotating shaft;

[0075] The reset spring piece 11 is installed between the lower pedal 10 and the support plate 8.

[0076] In a further optimized solution, the elastic pressing plate 12 includes a clamping plate 22 and an elastic connecting blade 21. The elastic connecting blade 21 is installed at the end of the lower pedal 10 away from the rotating shaft, and the clamping plate 22 is installed at the end of the elastic connecting blade 21 away from the lower pedal 10. The limiting protrusion 23 contacts the top surface of the clamping plate 22, and the clamping plate 22 is detachably connected to the bite block 6.

[0077] When the operator steps on pedal 10, it rotates downward about its axis, driving the retaining plate 22 of the elastic pressure plate 12 to engage the engaging block 6 on the outer wall of the auger body. Simultaneously, the limiting protrusion 23 prevents the retaining plate 22 from folding upward, ensuring a secure engagement and effectively transmitting the pedal force to the auger body. When the operator releases their foot, the resetting spring 11 generates a spring force, pushing the lower pedal 10 upward about its axis to reset. The elastic connecting blade 21 causes the retaining plate 22 to fold downward and disengage from the engaging block 6, automatically resetting the pedal and facilitating the operator's next foot-assisted operation.

[0078] To further optimize the solution, the hole filling assembly includes two sets of oppositely arranged arc scraper plates 27, which are respectively arranged on both sides of the through-opening 13, and one of the arc scraper plates 27 is located above the other arc scraper plate 27; the back sides of the two arc scraper plates 27 are respectively installed with outer plates 29 through stacked spring clips 28, and the two outer plates 29 are installed at the bottom of the disk body 7.

[0079] In a further optimized solution, the water outlet pan 19 includes a base 24 mounted on the bottom of the inner wall of the riser 2. The bottoms of the plurality of water pipes 18 are fixedly connected to and communicate with the base 24. A plurality of nozzles 25 are mounted on the base 24. The water outlets of the nozzles 25 are equipped with one-way blocking blades 26.

[0080] When sampling is completed, the soil auger body is pulled out and separated from the hole 13, and the arc-shaped scraper plates 27 are driven inward by the elastic force of the stacked spring pieces 28. During the inward movement of the two sets of arc-shaped scraper plates 27, the soil around the hole is scraped and buried in the hole to ensure the integrity of the soil.

[0081] A further optimization scheme features several conical bumps 20 mounted on the bottom of the disc 7, spaced evenly around the circumference. When the disc 7 is inserted into the target sampling location, the sharp shapes of the bumps 20 make it easier to cut into the soil, increasing friction between the disc 7 and the soil and firmly anchoring the disc 7 in the soil. Throughout the sampling process, the bumps 20 prevent the disc 7 from shifting or shaking, ensuring stable operation of components such as the pedal-assisted mechanism and the soil wetting mechanism. They provide a reliable support base for the auger body and enhance the overall stability of the device during operation.

[0082] The present invention also provides a method for using a sampling device for geological exploration, comprising the following steps:

[0083] Step 1: Insert the disc 7 into the target sampling position;

[0084] Step 2: Insert the bottom of the soil drill body into the hole 13;

[0085] Step 3: Press down the soil auger body and step on the self-resetting pedal assembly with your foot. Use the limit bump 23 to limit the elastic pressing plate 12 from folding upward, so that the elastic pressing plate 12 is inserted into the bite block 6, thereby achieving foot-assisted soil drilling; use the soil wetting mechanism to spray water on the hard soil to make it slippery; if the penetration resistance is greater than 1.5 MPa, it can be determined that the soil is hard;

[0086] Step 4: Release your foot to reset the pedal assembly. The elastic pressing plate 12 will fold downward and disengage from the engaging block 6.

[0087] Step 5: Repeat steps 3 to 4 until the auger body is inserted into the target sampling depth;

[0088] Step 6: After the sampling is completed, the soil auger body is pulled out upward and separated from the hole 13, and the soil around the hole is scraped and filled into the hole using the hole filling assembly.

[0089] In the description of the present invention, it should be understood that the terms "longitudinal", "transverse", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0090] Obviously, the above embodiments of the present invention are merely examples for the purpose of clearly illustrating the present invention and are not intended to limit the embodiments of the present invention. A person skilled in the art will be able to make other variations or modifications based on the above description. It is not necessary and impossible to enumerate all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the claims of the present invention.

Claims

1. A sampling device for geological exploration, characterized in that: include: A soil drill body, wherein the outer wall of the soil drill body is provided with a plurality of bite blocks (6); A foot-operated power-assisting mechanism, comprising a disc body (7) and a self-resetting pedal assembly; the self-resetting pedal assembly is mounted on the disc body (7); an elastic pressing plate (12) and a limiting protrusion (23) are mounted on the end of the self-resetting pedal assembly away from the disc body (7); the limiting protrusion (23) contacts the top surface of the elastic pressing plate (12); and the elastic pressing plate (12) is detachably connected to the bite block (6); a soil wetting mechanism installed in the soil auger body and used for spraying water onto the soil; A hole filling component, the hole filling component being installed at the bottom of the disk body (7); A through-hole (13) is provided at the center of the disc body (7), and the soil drill body passes through the through-hole (13).

2. The sampling device for geological exploration according to claim 1, characterized in that: The soil drill body comprises: A hollow handle (1), wherein the top surface of the hollow handle (1) is provided with two symmetrically arranged guide grooves (3); A stand pipe (2), the interior of the stand pipe (2) is hollow, the stand pipe (2) is fixedly mounted on the bottom of the hollow handle (1), and the stand pipe (2) is in communication with the inner cavity of the hollow handle (1); A soil burrowing cone (4), the soil burrowing cone (4) being fixedly mounted on the bottom of the vertical pipe (2); a soil sampling cavity (5) being provided in the soil burrowing cone (4); Wherein, a plurality of engaging blocks (6) are provided on the outer walls of the vertical pipe (2) and the plunging cone (4), the soil wetting mechanism is installed in the hollow handle (1), and the plunging cone (4) and the vertical pipe (2) both pass through the through opening (13).

3. The sampling device for geological exploration according to claim 2, characterized in that: The soil wetting mechanism comprises a water storage chamber (14), a one-way drainage assembly and two pressing plates (15); the water storage chamber (14) is arranged in the middle section of the inner cavity of the hollow handle (1); the two pressing plates (15) are respectively located on both sides of the water storage chamber (14), and the two pressing plates (15) are both slidably connected to the inner wall of the hollow handle (1); The pressure plate (15) is installed with a moving block (16) through a connecting rod, and a sliding rod (17) is installed on the top of the moving block (16). The two sliding rods (17) are respectively slidably connected to the two guide grooves (3), and the top of the sliding rod (17) extends out of the hollow handle (1). The one-way drainage component is installed in the vertical pipe (2), and the top of the one-way drainage component is connected to the water storage chamber (14).

4. The sampling device for geological exploration according to claim 3, characterized in that: The one-way drainage assembly includes: A water pipe (18), wherein a plurality of the water pipes (18) are provided, and the tops of the plurality of the water pipes (18) are fixedly connected to and communicated with the water storage chamber (14); A water outlet pan (19) is installed at the bottom of the inner wall of the vertical pipe (2), and the bottoms of the plurality of water guide pipes (18) are fixedly connected to and communicated with the water outlet pan (19).

5. The sampling device for geological exploration according to claim 1, characterized in that: The self-resetting pedal assembly comprises: A support plate (8), the support plate (8) being mounted on the outer wall of the disk body (7); two side plates (9) arranged side by side are mounted on the top of the support plate (8), and a rotating shaft is rotatably connected between the two side plates (9); A lower pedal (10), the elastic pressing plate (12) and the limiting protrusion (23) are installed at one end of the lower pedal (10), and the other end of the lower pedal (10) is fixedly connected to the rotating shaft; A reset spring (11), wherein the reset spring (11) is installed between the lower pedal (10) and the support plate (8).

6. The sampling device for geological exploration according to claim 5, characterized in that: The elastic pressing plate (12) includes a card plate (22) and an elastic connecting blade (21), wherein the elastic connecting blade (21) is mounted on an end of the lower pedal (10) away from the rotating shaft, and the card plate (22) is mounted on an end of the elastic connecting blade (21) away from the lower pedal (10), the limiting protrusion (23) contacts the top surface of the card plate (22), and the card plate (22) is detachably connected to the bite block (6).

7. The sampling device for geological exploration according to claim 1, characterized in that: The hole filling assembly comprises two sets of arc-shaped scraping plates (27) arranged opposite to each other. The two arc-shaped scraping plates (27) are respectively arranged on both sides of the through-hole (13), and one of the arc-shaped scraping plates (27) is located above the other arc-shaped scraping plate (27). The two arc-shaped scraping plates (27) are respectively installed with outer plates (29) on the back side through laminated spring pieces (28). The two outer plates (29) are installed at the bottom of the disk body (7).

8. The sampling device for geological exploration according to claim 4, characterized in that: The water outlet tray (19) comprises a base tray (24) mounted on the bottom of the inner wall of the vertical pipe (2); the bottoms of the plurality of water guide pipes (18) are fixedly connected to and communicated with the base tray (24); a plurality of nozzles (25) are mounted on the base tray (24); and the water outlets of the nozzles (25) are mounted with one-way blocking blades (26).

9. The sampling device for geological exploration according to claim 1, characterized in that: A plurality of conical convex blocks (20) are installed on the bottom of the disk body (7), and the conical convex blocks (20) are arranged at equal intervals in the circumferential direction.

10. A method for using a sampling device for geological exploration, based on the sampling device for geological exploration according to any one of claims 1 to 9, characterized in that: The following steps are involved: Step 1: insert the disc (7) into the target sampling position; Step 2: insert the bottom of the soil drill body into the hole (13); Step 3: Press down the soil drill body, and use the foot to step down the self-reset pedal assembly, use the limit convex block (23) to limit the elastic pressing plate (12) from folding upward, so that the elastic pressing plate (12) is inserted into the bite block (6), and the foot-assisted soil drilling is realized; use the soil wetting mechanism to spray water on the hard soil to make it slippery; Step 4: Release the foot to reset the self-resetting pedal assembly, at which time the elastic pressing plate (12) folds downward and disengages from the bite block (6); Step 5: Repeat steps 3 to 4 until the auger body is inserted into the target sampling depth; Step 6: After the sampling is completed, the soil auger body is pulled out upward and separated from the hole (13), and the soil around the hole is scraped and buried in the hole using the hole filling component.

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