Soil detection device

Abstract

The invention discloses a soil detection device. The soil detection device comprises a flat car; the telescopic cylinders are arranged on the flat trolley, a supporting plate is arranged at the tops of the telescopic cylinders, a first motor is arranged on the supporting plate, and an output shaft of the first motor penetrates through the supporting plate; the auger with the shaft is coaxially connected to an output shaft of the first motor through a coupler, a conveying pipe matched with the auger with the shaft is further arranged on the lower plate face of the supporting plate, the auger with the shaft is coaxially sleeved with the conveying pipe, a first through hole allowing the conveying pipe to penetrate through is formed in the flat trolley, and the conveying pipe penetrates through the first through hole to extend to the position below the flat trolley; the auger with the shaft extends out of the lower end of the conveying pipe, and a soil sampling drill bit is arranged at the lower end of the auger with the shaft. According to the invention, the detection equipment is mounted on the flat trolley, so that a detector does not need to carry heavy detection equipment to a sampling detection point; the sampling drill bit directly collects soil from the sampling depth, and the soil is lifted through the auger with the shaft and the conveying pipe, so that the sampling drill bit does not need to be lifted from the soil to collect a soil sample.

Description

Technical Field

[0001] The present invention relates to the technical field of soil detection, and more particularly to a soil detection device. Background Art

[0002] With the development of society, the development of chemistry has been promoted. The land is often polluted by various factors, including chemical fertilizers or metal waste. The degree of pollution makes it difficult for the soil to purify itself. These polluted soils are washed into rivers by rainwater, which can easily cause eutrophication of river water. Therefore, soil testing is urgent. Technicians can formulate different treatment plans to improve soil pollution based on the soil conditions after testing. The existing soil testing devices have simple sampling tools and then test them through analytical instruments. However, most of the polluted soils are corrosive, and direct contact with the tester can easily cause skin damage.

[0003] A soil detection device is disclosed in the patent with application number 202110862918.7, which includes a body, a hydraulic cylinder is provided on the top inner wall of the body, a connecting plate is provided on the top outer wall of the hydraulic cylinder, a cylinder is provided on the bottom outer wall of the connecting plate, a mounting seat is provided at the extended end of the cylinder, a first motor is provided on the bottom inner wall of the mounting seat, and a fixing plate is provided on the bottom outer wall of the mounting seat; the soil detection method of the device includes the following steps: adjusting the extension distance of the hydraulic cylinder and the cylinder, and collecting samples using a sampling structure; after sampling, placing the collected samples on a partition board. After the soil detection device in the above patent collects samples using a sampling structure, it is also necessary to lift the sampling drill bit from the soil, and then manually place the sample collected by the sampling drill bit on the partition board. From the use process, it does not prevent the inspector from contacting the soil. Summary of the invention

[0004] An object of the present invention is to solve at least the above problems and to provide at least the advantages which will be described hereinafter.

[0005] Another object of the present invention is to provide a soil testing device, which transports soil samples collected by a soil sampling drill bit to a grinding mechanism through an auger for grinding and then testing. The testing process does not require the tester to contact the soil, thereby ensuring the health and safety of the tester.

[0006] In order to achieve these purposes and other advantages according to the present invention, there is provided a soil detection device, comprising:

[0007] Flatbed trolley;

[0008] A pair of telescopic cylinders are arranged on the flatbed trolley at intervals along the width direction of the flatbed trolley, a support plate is provided on the top of the pair of telescopic cylinders, a first motor is provided on the support plate, the first motor is located between the pair of telescopic rods, and an output shaft of the first motor passes through the support plate;

[0009] A shaft auger, which is coaxially connected to the output shaft of the first motor through a coupling, a delivery pipe matching the shaft auger is also provided on the lower surface of the support plate, the delivery pipe is coaxially sleeved outside the shaft auger, a first through hole for accommodating the delivery pipe to pass through is opened on the top of the flatbed trolley, the delivery pipe extends to the bottom of the flatbed trolley through the first through hole, the shaft auger extends to the outside of the lower end of the delivery pipe, and a soil drilling bit is provided at the lower end of the shaft auger;

[0010] The upper part of the conveying pipe is connected to a first soil discharge pipe and a second soil discharge pipe, the first soil discharge pipe is provided with a first butterfly valve, and the second soil discharge pipe is provided with a second butterfly valve;

[0011] A grinding mechanism, comprising a raw material feed hole and a sample discharge hole, the flatbed trolley is provided with a support frame, the grinding mechanism is arranged on the support frame, and the second soil discharge pipe is connected with the raw material feed hole through a first hose;

[0012] A turntable, which is arranged on the flatbed trolley, wherein a portion of the turntable surface is located below the sample discharge hole of the grinding mechanism, and a container for holding ground soil samples is arranged on the turntable, and a moving path of the container as the turntable rotates passes below the sample discharge hole, and a portion of the moving path is located outside the horizontal projection range of the grinding mechanism;

[0013] The detection mechanism is arranged on the flatbed trolley, and the detection mechanism includes a plurality of detection probes, at least one of which is located above the moving path of the container outside the horizontal projection range of the grinding mechanism.

[0014] Preferably, the grinding mechanism comprises:

[0015] The first grinding disc comprises a first cylindrical portion and a conical portion coaxially and integrally formed at the bottom of the first cylindrical portion, the raw material feeding hole penetrates from the top surface of the first grinding disc to the conical surface of the conical portion, and the flatbed trolley is provided with a bracket for supporting and limiting the rotation of the first grinding disc;

[0016] The second grinding disc comprises a second cylindrical portion, the top of the second cylindrical portion is provided with an inverted cone groove adapted to the conical portion, the sample discharge hole penetrates from the lowest point of the inverted cone groove to the bottom surface of the second grinding disc, the first grinding disc is coaxially arranged on the second grinding disc, and the conical portion is embedded in the inverted cone groove;

[0017] A gear ring is coaxially arranged on the bottom surface of the second grinding disc, a thrust bearing is arranged on the support frame, and the gear ring is coaxially arranged on the thrust bearing;

[0018] The second motor is arranged on the flatbed trolley, and the output shaft of the second motor is coaxially connected with a gear, and the gear is meshed with the gear ring so that the second motor drives the second grinding disc to rotate.

[0019] Preferably, both the surface of the conical portion and the surface of the inverted conical groove are provided with a plurality of evenly arranged hemispherical protrusions, and the hemispherical protrusions on the surface of the conical portion and the surface of the inverted conical groove are staggered with each other.

[0020] Preferably, the flatbed trolley is further provided with a water tank, a water pump is provided on the top of the water tank, a water inlet of the water pump is connected with a water pumping pipe, the water pumping pipe passes through the top plate of the water tank and extends into the water tank, and a water outlet of the water pump is connected with an inlet of a three-way joint;

[0021] A first cleaning hole is provided on the upper portion of the conveying pipe, and a second cleaning hole is provided on the first grinding disc, penetrating from the top surface of the first grinding disc to the conical surface of the conical portion. The first outlet of the three-way joint is connected to the first cleaning hole through a second hose, and the second outlet of the three-way joint is connected to the second cleaning hole through a third hose.

[0022] Preferably, a deep groove ball bearing is provided between the output shaft of the first motor and the delivery pipe.

[0023] Preferably, the flatbed trolley is an electric flatbed trolley or a human-driven flatbed trolley.

[0024] Preferably, a horizontal flange plate is overlapped on the wide edge of the flatbed trolley, a screw hole is provided on the flange plate, and an anchor rod is threadedly connected in the screw hole.

[0025] The present invention includes at least the following beneficial effects: the detection equipment is installed on a flatbed trolley, which greatly facilitates the detection work in the field, and there is no need for the inspectors to carry heavy detection equipment to the sampling and detection points; during the soil sampling process, the sampling drill bit directly collects the soil from the sampling depth and lifts it up through the shaft auger and the conveying pipe, and there is no need to lift the sampling drill bit from the soil and then collect the soil sample, thus saving procedures and time; at the same time, the soil sample is conveyed to the grinding mechanism by the first hose, and is directly discharged into the container after grinding. The above process does not require the inspectors to directly contact the soil samples, thus ensuring the health and safety of the inspectors.

[0026] Other advantages, objectives and features of the present invention will be embodied in part through the following description, and in part will be understood by those skilled in the art through study and practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a schematic diagram of the side structure of the soil detection device according to an embodiment of the present invention;

[0028] Figure 2 It is a left-side structural schematic diagram of the soil detection device according to an embodiment of the present invention. DETAILED DESCRIPTION

[0029] The present invention is further described in detail below in conjunction with the accompanying drawings so that those skilled in the art can implement the invention with reference to the description.

[0030] It should be noted that the experimental methods described in the following embodiments are conventional methods unless otherwise specified, and the reagents and materials are commercially available unless otherwise specified; in the description of the present invention, the terms "lateral", "longitudinal", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply 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.

[0031] like Figures 1-2 As shown, the present invention provides a soil detection device, comprising:

[0032] Flatbed trolley 1;

[0033] Specifically, the flatbed trolley 1 can be a human-driven flatbed trolley 1 or an electric flatbed trolley 1. By installing the detection equipment on the flatbed trolley 1, it is greatly convenient to carry out detection work in the field, and there is no need for the inspector to carry heavy detection equipment to the sampling and detection point.

[0034] A pair of telescopic cylinders 2 are arranged on the flatbed trolley 1 at intervals along the width direction of the flatbed trolley 1, a support plate 3 is provided on the top of the pair of telescopic cylinders 2, a first motor 4 is provided on the support plate 3, the first motor 4 is located between the pair of telescopic rods, and the output shaft of the first motor 4 passes through the support plate 3;

[0035] Specifically, the telescopic cylinder 2 can be a hydraulic cylinder, a gas cylinder or an electric cylinder. The telescopic cylinder 2 has sufficient force to provide sufficient downward pressure for the soil drill 8 to drill. Of course, if it is a hydraulic cylinder or a gas cylinder, the flatbed trolley 1 also needs to be equipped with an oil tank, a gas cylinder and a mobile power supply. If it is an electric cylinder, only a mobile power supply is required. At the same time, in this embodiment, the piston part of the telescopic rod is arranged upward, and the downward pressure is provided for the soil drill 8 by contracting the telescopic rod.

[0036] A shaft auger 5 is coaxially connected to the output shaft of the first motor 4 through a coupling 6. A conveying pipe 7 matching the shaft auger 5 is also provided on the lower surface of the support plate 3. The conveying pipe 7 is coaxially sleeved outside the shaft auger 5. A first through hole for accommodating the conveying pipe 7 to pass through is opened on the top of the flatbed trolley 1. The conveying pipe 7 passes through the first through hole and extends to the bottom of the flatbed trolley 1. The shaft auger 5 extends to the outside of the lower end of the conveying pipe 7, and a soil drilling bit 8 is provided at the lower end of the shaft auger 5;

[0037] Specifically, the soil drill bit 8 can be a commercially available spiral soil drill. When the soil drill bit 8 drills into the soil, it cuts and collects the soil, which has a certain crushing effect. The soil moves to the spiral part of the auger along the spiral surface of the soil drill bit 8, and is then lifted upward by the spiral part of the auger in the conveying pipe 7. The inner wall of the conveying pipe 7, the surface of the soil drill bit 8 and the surface of the shaft auger 5 can be coated or plated with corrosion-resistant and wear-resistant coatings or platings, and can also be coated or plated with anti-sticking coatings or platings to prevent the conveying pipe 7, the soil drill bit 8 and the shaft auger 5 from being corroded and worn by the soil, and to prevent the soil from sticking to them.

[0038] The upper part of the conveying pipe 7 is connected to a first soil discharge pipe 9 and a second soil discharge pipe 10. The first soil discharge pipe 9 is provided with a first butterfly valve 11, and the second soil discharge pipe 10 is provided with a second butterfly valve 12.

[0039] Specifically, since soil testing and sampling sometimes requires the collection of deep soil, the surface soil drilled first needs to be discharged. Therefore, two soil discharge pipes are provided in this embodiment. The first soil discharge pipe 9 is used to discharge and discard the collected surface soil when drilling into the surface layer of the soil, and the second soil discharge pipe 10 is used to discharge the collected soil to the grinding mechanism described below when drilling into the deep layer of the soil.

[0040] The grinding mechanism includes a raw material feed hole 13 and a sample discharge hole 14. The flatbed trolley 1 is provided with a support frame 15, and the grinding mechanism is arranged on the support frame 15. The second soil discharge pipe 10 is connected with the raw material feed hole 13 through a first hose 16;

[0041] Specifically, the grinding mechanism may be a grinding mechanism disclosed in the prior art, or a grinding mechanism disclosed in the following embodiment. The grinding mechanism is used to further grind the soil material discharged from the second soil discharge pipe 10 .

[0042] A turntable 17, which is arranged on the flatbed trolley 1, a part of the turntable 17 is located below the sample discharge hole 14 of the grinding mechanism, and a container 18 for holding the ground soil sample is arranged on the turntable 17, and a moving path of the container 18 as the turntable 17 rotates passes below the sample discharge hole 14, and a part of the moving path is located outside the horizontal projection range of the grinding mechanism;

[0043] Specifically, the turntable 17 includes a fixed shaft vertically arranged on the flatbed trolley 1 and a disc body coaxially connected to the upper end of the fixed shaft. The disc body can be provided with a groove for limiting the container 18. The container 18 can be a beaker or other container. At the same time, the disc body can also be provided with multiple grooves for accommodating multiple containers 18, which is convenient for separate loading of different samples. Since the moving path of the container 18 passes under the sample discharge hole 14, it can directly receive the sample ground from the grinding mechanism. Since a part of the moving path of the container 18 is located outside the horizontal projection range of the grinding mechanism, the inspector can directly rotate the turntable 17 to move the container 18 out from under the grinding mechanism, which is convenient for the inspector to take or directly use the following detection mechanism 19 for detection.

[0044] The detection mechanism 19 is disposed on the flatbed trolley 1 , and includes a plurality of detection probes, at least one of which is located above the moving path of the container 18 outside the horizontal projection range of the grinding mechanism.

[0045] The use process of the above embodiment is as follows: the flatbed trolley 1 is driven to the sampling point where sampling and testing is required, the second butterfly valve 12 is closed, the first butterfly valve 11 is opened, and then the telescopic cylinder 2 and the first motor 4 are started to make the soil drill bit 8 drill into the soil. During the drilling process, the soil drill bit 8 is combined with the shaft auger 5 and the conveying pipe 7 to drill the surface soil and discharge it from the first soil discharge pipe 9 to the ground. When the soil drill bit 8 drills to the sampling depth, the first butterfly valve 11 is kept open for a period of time to lift the sampled soil in the conveying pipe 7 and gradually discharge the remaining surface soil in the conveying pipe 7. Then the first butterfly valve 11 is closed, and the second butterfly valve 12 is opened to allow the sampled soil to enter the grinding mechanism along the first hose 16. After being ground in the grinding mechanism, it is discharged from the sample discharge hole 14 to the container 18 of the turntable 17. The telescopic cylinder 2 and the first motor 4 are closed, and the turntable 17 is rotated to make the container 18 rotate out from under the grinding mechanism, and then the detection probe attached to the detection device is used to detect the sample in the container 18.

[0046] It is not difficult to see from the use process of the above embodiment that: installing the detection equipment on the flatbed trolley 1 greatly facilitates the detection work in the field, and there is no need for the inspector to carry heavy detection equipment to the sampling and detection point; during the soil sampling process, the sampling drill bit directly collects the soil from the sampling depth and lifts it up through the shaft auger 5 and the conveying pipe 7. There is no need to lift the sampling drill bit from the soil and then collect the soil sample, which saves procedures and time; at the same time, the soil sample is conveyed to the grinding mechanism by the first hose 16, and is directly discharged into the container 18 after grinding. The above process does not require the inspector to directly contact the soil sample, thereby ensuring the health and safety of the inspector.

[0047] In another embodiment, the grinding mechanism comprises:

[0048] The first grinding disc 20 comprises a first cylindrical portion and a conical portion coaxially integrally formed at the bottom of the first cylindrical portion, the raw material feed hole 13 penetrates from the top surface of the first grinding disc 20 to the conical surface of the conical portion, and a bracket for supporting and limiting the rotation of the first grinding disc 20 is provided on the flatbed trolley;

[0049] The second grinding disc 21 comprises a second cylindrical portion, the top of the second cylindrical portion is provided with an inverted cone groove adapted to the conical portion, the sample discharge hole 14 penetrates from the lowest point of the inverted cone groove to the bottom surface of the second grinding disc 21, the first grinding disc 20 is coaxially arranged on the second grinding disc 21, and the conical portion is embedded in the inverted cone groove;

[0050] A gear ring 22 is coaxially arranged on the bottom surface of the second grinding disc 21. A thrust bearing 23 is arranged on the support frame 15. The gear ring 22 is coaxially arranged on the thrust bearing 23.

[0051] The second motor 24 is disposed on the flatbed trolley 1 , and the output shaft of the second motor 24 is coaxially connected with a gear 25 , and the gear 25 is meshed with the gear ring 22 , so that the second motor 24 drives the second grinding disc 21 to rotate.

[0052] Specifically, the first grinding disc 20 and the second grinding disc 21 can be made of metal material, stone or concrete material, and the surface of the conical portion and the inverted cone groove can be roughened so that there is a gap between the first grinding disc 20 and the second grinding disc 21, so that soil can leak into the first grinding disc 20 and the second grinding disc 21 from the raw material feed hole 13, and the surface of other parts of the first grinding disc 20 and the second grinding disc 21 can be polished for easy cleaning.

[0053] Specifically, since the first grinding disc 20 is provided with a raw material feed hole 13, and the raw material feed hole 13 is connected to the first hose 16, it is not convenient to rotate. Therefore, in this embodiment, the second grinding disc 21 is rotated. In order to reduce the rotation resistance of the second grinding disc 21, a thrust bearing 23 is provided on the support frame 15. In addition, in order to prevent the first grinding disc from rotating with the second grinding disc, the flatbed trolley is also provided with a bracket that supports and limits the rotation of the first grinding disc. For example, a bending rod shaped like "┌" is provided on the flatbed trolley, and a hole for inserting the horizontal part of the bending rod is provided on the circumferential side wall of the first grinding disc, and the first grinding disc is fixed by a pair of bending rods.

[0054] Specifically, since the sample discharge hole 14 on the second grinding disc 21 needs to discharge the soil sample downward, an open space must be left below the sample discharge hole 14. Therefore, a support frame 15 and a thrust bearing 23 are used in this embodiment. The support frame 15 may specifically include an annular frame supporting the thrust bearing 23 and a support foot supported at the bottom of the annular frame, so that a through open space is formed between the center of the support frame 15 and the center of the thrust bearing 23 for sample discharge.

[0055] When the above embodiment is used, the second motor 24 is started, and the second motor 24 drives the second grinding disc 21 to rotate through the mutually meshing gears 25 and the gear ring 22. When the soil sample in the raw material feed hole 13 enters between the first grinding disc 20 and the second grinding disc 21, the soil sample is sheared and dispersed under the rotation of the second grinding disc 21 to complete the grinding, and the finely ground soil sample gradually flows downward along the inverted cone groove and converges, and finally enters the sample discharge hole 14 and is discharged from the sample discharge hole 14.

[0056] The above embodiment realizes the synchronous and automatic grinding and discharge of soil samples through the special design of the grinding disc structure. Compared with the existing grinding mechanism, the equipment structure of the present application is simpler and the operation is more convenient.

[0057] In another embodiment, the surface of the cone portion and the surface of the inverted cone groove are both provided with a plurality of evenly arranged hemispherical protrusions, and the hemispherical protrusions on the surface of the cone portion and the surface of the inverted cone groove are staggered with each other. The hemispherical protrusions provided here can increase the roughness of the surface of the cone portion and the surface of the inverted cone groove, which not only leaves a grinding space for the soil sample between the first grinding disc 20 and the second grinding disc 21, but also increases the shear friction, which is beneficial to the shear dispersion of the soil.

[0058] Since in the aforementioned embodiments, each collection and grinding of soil samples may result in residual soil in the soil drill bit 8, the conveying pipe 7, the shaft auger 5 and the grinding mechanism, in order to prevent the previous soil residue from affecting the next sampling and detection, the following embodiments further provide a cleaning mechanism.

[0059] In another embodiment, the flatbed trolley 1 is further provided with a water tank 26, a water pump 27 is provided on the top of the water tank 26, a water inlet of the water pump 27 is connected to a water pumping pipe 28, the water pumping pipe 28 passes through the top plate of the water tank 26 and extends into the water tank 26, and the water outlet of the water pump 27 is connected to the inlet of a three-way joint 29;

[0060] A first cleaning hole is provided on the upper portion of the delivery pipe 7, and a second cleaning hole is provided on the first grinding disc 20, penetrating from the top surface of the first grinding disc 20 to the conical surface of the conical portion. The first outlet of the three-way joint 29 is connected to the first cleaning hole through a second hose 30, and the second outlet of the three-way joint 29 is connected to the second cleaning hole through a third hose 31.

[0061] When the above embodiment is used, the water pump 27 draws water from the water tank 26, and then transports the water to the delivery pipe 7 through the second hose 30, and the first motor 4 is turned on to rotate the shaft auger 5 and the soil drill bit 8. The water flow repeatedly cleans the surface of the shaft auger 5 and the soil drill bit 8 during their rotation, and also cleans the inner wall of the delivery pipe 7. In addition, the third hose 31 also transports water to the grinding mechanism, and the second motor 24 is turned on to rotate the second grinding disc 21. The water flows between the first grinding disc 20 and the second grinding disc 21 to clean the conical part and the inverted cone groove. When the cleaned water is not turbid, it can be known that the delivery pipe 7, the shaft auger 5 and the inside of the grinding mechanism are clean, which is convenient for the next sampling and detection work.

[0062] More specifically, the first motor can be a bidirectionally rotatable motor, so that during cleaning operations, repeatedly rotating the shaft auger forward and backward can cause the water flow to repeatedly flush the surface of the shaft auger and the inner wall of the conveying pipe.

[0063] More specifically, a first drainage hole can be provided on the flatbed cart 1 at a position directly opposite to the sample discharge hole 14, and a second drainage hole can also be provided on the turntable 17. When the grinding mechanism needs to be cleaned, the second drainage hole on the turntable 17 is turned to be aligned with the sample discharge hole 14 and the first drainage hole. In this way, the sewage from cleaning the grinding mechanism can be directly discharged to the ground through the flatbed cart 1, avoiding sewage from remaining on the flatbed cart 1.

[0064] In another embodiment, a deep groove ball bearing 32 is provided between the output shaft of the first motor 4 and the delivery pipe 7 , where the deep groove ball bearing 32 can ensure the rotation accuracy of the output shaft of the first motor 4 .

[0065] In another embodiment, the wide side edge of the flatbed cart 1 is overlapped with a horizontal flange plate 33, and the flange plate 33 is provided with a screw hole, and the screw hole is threaded with an anchor rod 34. When working in the field, when the flatbed cart 1 arrives at the sampling point, before sampling and testing, the anchor rod 34 can be screwed to make it drill down into the soil and anchor, so as to avoid the movement of the flatbed cart 1 during the sampling process and affect the normal operation of the equipment; when the sampling and testing work is completed, the anchor rod 34 can be screwed to make it rise from the soil.

[0066] Specifically, barbs may be provided on the lower surface of the anchor rod 34 to increase its anchoring effect on the soil.

[0067] Although the embodiments of the present invention have been disclosed as above, they are not limited to the applications listed in the specification and the implementation modes, and they can be fully applied to various fields suitable for the present invention. For those familiar with the art, additional modifications can be easily implemented. Therefore, without departing from the general concept defined by the claims and the scope of equivalents, the present invention is not limited to the specific details and the illustrations shown and described herein.

Claims

1. A soil detection device, characterized in that: include: Flatbed trolley; A pair of telescopic cylinders are arranged on the flatbed trolley at intervals along the width direction of the flatbed trolley, a support plate is provided on the top of the pair of telescopic cylinders, a first motor is provided on the support plate, the first motor is located between the pair of telescopic rods, and an output shaft of the first motor passes through the support plate; A shaft auger, which is coaxially connected to the output shaft of the first motor through a coupling, a delivery pipe matching the shaft auger is also provided on the lower surface of the support plate, the delivery pipe is coaxially sleeved outside the shaft auger, a first through hole for accommodating the delivery pipe to pass through is opened on the top of the flatbed trolley, the delivery pipe extends to the bottom of the flatbed trolley through the first through hole, the shaft auger extends to the outside of the lower end of the delivery pipe, and a soil drilling bit is provided at the lower end of the shaft auger; The upper part of the conveying pipe is connected to a first soil discharge pipe and a second soil discharge pipe, the first soil discharge pipe is provided with a first butterfly valve, and the second soil discharge pipe is provided with a second butterfly valve; A grinding mechanism, comprising a raw material feed hole and a sample discharge hole, the flatbed trolley is provided with a support frame, the grinding mechanism is arranged on the support frame, and the second soil discharge pipe is connected with the raw material feed hole through a first hose; A turntable, which is arranged on the flatbed trolley, wherein a portion of the turntable surface is located below the sample discharge hole of the grinding mechanism, and a container for holding ground soil samples is arranged on the turntable, and a moving path of the container as the turntable rotates passes below the sample discharge hole, and a portion of the moving path is located outside the horizontal projection range of the grinding mechanism; The detection mechanism is arranged on the flatbed trolley, and the detection mechanism includes a plurality of detection probes, at least one of which is located above the moving path of the container outside the horizontal projection range of the grinding mechanism.

2. The soil detection device according to claim 1, characterized in that: The grinding mechanism comprises: The first grinding disc comprises a first cylindrical portion and a conical portion coaxially and integrally formed at the bottom of the first cylindrical portion, the raw material feeding hole penetrates from the top surface of the first grinding disc to the conical surface of the conical portion, and the flatbed trolley is provided with a bracket for supporting and limiting the rotation of the first grinding disc; The second grinding disc comprises a second cylindrical portion, the top of the second cylindrical portion is provided with an inverted cone groove adapted to the conical portion, the sample discharge hole penetrates from the lowest point of the inverted cone groove to the bottom surface of the second grinding disc, the first grinding disc is coaxially arranged on the second grinding disc, and the conical portion is embedded in the inverted cone groove; A gear ring, which is coaxially arranged on the bottom surface of the second grinding disc, a thrust bearing is arranged on the support frame, and the gear ring is coaxially arranged on the thrust bearing; The second motor is arranged on the flatbed trolley, and the output shaft of the second motor is coaxially connected with a gear, and the gear is meshed with the gear ring so that the second motor drives the second grinding disc to rotate.

3. The soil detection device according to claim 2, characterized in that: The surface of the conical portion and the surface of the inverted conical groove are both provided with a plurality of evenly arranged hemispherical protrusions, and the hemispherical protrusions on the surface of the conical portion and the surface of the inverted conical groove are staggered with each other.

4. The soil detection device according to claim 2, characterized in that: The flatbed trolley is also provided with a water tank, a water pump is provided on the top of the water tank, a water inlet of the water pump is connected with a water pumping pipe, the water pumping pipe passes through the top plate of the water tank and extends into the water tank, and the water outlet of the water pump is connected with the inlet of a three-way joint; A first cleaning hole is provided on the upper portion of the conveying pipe, and a second cleaning hole is provided on the first grinding disc, penetrating from the top surface of the first grinding disc to the conical surface of the conical portion. The first outlet of the three-way joint is connected to the first cleaning hole through a second hose, and the second outlet of the three-way joint is connected to the second cleaning hole through a third hose.

5. The soil detection device according to claim 2, characterized in that: A deep groove ball bearing is arranged between the output shaft of the first motor and the delivery pipe.

6. The soil detection device according to claim 2, characterized in that: The flatbed trolley is an electric flatbed trolley or a manpower-driven flatbed trolley.

7. The soil detection device according to claim 1, characterized in that: A horizontal flange plate is overlapped on the wide edge of the flatbed trolley, a screw hole is provided on the flange plate, and an anchor rod is threadedly connected in the screw hole.

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