Soil sampling device and method

Abstract

The application provides a soil sampling device and a sampling method, and belongs to the technical field of soil sampling. The soil sampling device comprises a supporting assembly, a driving transmission assembly, a sampling assembly and a storage assembly. The driving transmission assembly is arranged on the supporting assembly and has a power end moving up and down along a vertical direction. The sampling assembly comprises a sampling column arranged on the power end and moving up and down along with the power end. An eccentric rod is rotationally connected to the sampling column and eccentrically arranged on the sampling column. The upper end of the eccentric rod penetrates the sampling column upward. A plurality of sampling boxes are arranged on the eccentric rod at intervals along the axial direction of the eccentric rod. The sampling boxes have a storage state and a sampling state of extending out of the sampling column to collect corresponding layer soil. The storage assembly is arranged on the supporting assembly and located on the side opposite to the driving transmission assembly relative to the sampling column. The storage assembly is used for storing the corresponding layer soil samples collected by the sampling boxes. The soil sampling device and the sampling method provided by the application have high sampling speed and efficiency.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of soil sampling, and more particularly to a soil sampling device and a sampling method. BACKGROUND

[0002] In the process of land management, in order to facilitate the understanding of the content of each component in the soil, it is usually necessary to sample the soil, and the collected soil samples are analyzed to determine the pollution degree of the soil in different regions, so as to treat the soil in different regions respectively and improve the soil environment.

[0003] Because the contents of each part in the soil of different depths are different, in order to improve the accuracy of the measurement results, multiple sampling points need to be set in the same region for multiple sampling, and the soil in different regions also needs to be sampled. In the prior art, the commonly used soil sampling device cannot sample the soil at different depths at the same time, and when sampling the soil in different regions, manual collection and arrangement are required, the sampling speed is slow, and the overall sampling efficiency is low. SUMMARY

[0004] The purpose of the present application is to provide a soil sampling device and a sampling method, which aims to solve the technical problems of slow sampling speed and low efficiency of the existing soil sampling device.

[0005] To achieve the above-mentioned purpose, the technical scheme adopted by the present application is:

[0006] In a first aspect, a soil sampling device is provided, comprising:

[0007] A support assembly is arranged on the ground in a pre-sampling area;

[0008] A drive transmission assembly is arranged on the support assembly and has a power end moving up and down in the vertical direction;

[0009] A sampling assembly includes a sampling column arranged on the power end and moving up and down with the power end, an eccentric rod eccentrically arranged with the sampling column is rotatably connected in the sampling column, and the upper end of the eccentric rod penetrates out of the sampling column; a plurality of sampling boxes are arranged on the eccentric rod in the axial direction, the sampling box has a storage state in the sampling column, and when the extended end of the eccentric rod is rotated, the sampling box also has a sampling state of collecting the corresponding layer of soil out of the sampling column; and

[0010] A storage assembly is arranged on the support assembly, and the storage assembly is used to store the corresponding layer of soil sample collected by the sampling box;

[0011] When the sampling column moves up and down, the sampling box is in the storage state; after the sampling column is inserted into the designated position in the soil, the sampling box is in the sampling state.

[0012] With reference to the first aspect, in a possible implementation manner, the sampling box is in a fan shape structure, two sides of the sampling box are defined as a first side and a second side, the first side is located at a front end in a rotation direction of the sampling box, the first side is provided with an opening, and the second side is provided with a sliding plate slidingly connected to a bottom wall of the sampling box along a circumferential direction of the eccentric rod.

[0013] When the sampling box is inserted into the soil along with the sampling column, the sliding plate is arranged at the second side to intercept the soil sample entering the sampling box from the opening into an inner cavity of the sampling box; after the sampling column is pulled out of the soil, the sliding plate is slid to the first side to push the soil sample in the sampling box out of the sampling box.

[0014] In some embodiments, the sampling assembly further comprises a rotating member arranged in the sampling column, the rotating member is connected to the sliding plates of the plurality of sampling boxes respectively, and the rotating member is configured to push the sliding plates to slide along the circumferential direction of the eccentric rod.

[0015] For example, the rotating member comprises:

[0016] a ring-shaped block arranged in the sampling column and arranged around an outer circumferential wall of the eccentric rod;

[0017] a plurality of connecting ribs corresponding to the plurality of sliding plates one by one, one end of the connecting rib is connected to the corresponding sliding plate, and the other end of the connecting rib is connected to the ring-shaped block;

[0018] a lever arranged at an upper end of the ring-shaped block, one end of the lever extends out of the outer circumferential wall of the sampling column, and the lever can rotate around the circumferential direction of the sampling column;

[0019] When the lever is pushed along the circumferential direction of the sampling column, the ring-shaped block is configured to push the corresponding sliding plates to slide through the plurality of connecting ribs.

[0020] In some embodiments, the upper end of the eccentric rod is further connected to two sets of limiting members, the two sets of limiting members are located on two sides of the lever respectively, and the two sets of limiting members are configured to limit the rotation angle of the lever.

[0021] For example, the upper end of the eccentric rod is provided with a rotating hand disc, and the limiting members are arranged in the rotating hand disc.

[0022] With reference to the first aspect, in a possible implementation manner, the receiving assembly comprises a plurality of receiving boxes distributed in a vertical direction, and the plurality of receiving boxes correspond to the plurality of sampling boxes one by one.

[0023] The receiving box is used for containing the soil sample in the corresponding sampling box after the sampling column drives the sampling box to extend out of the soil.

[0024] In some embodiments, the receiving assembly further comprises:

[0025] The first driving member is arranged on the support assembly and located on the side opposite to the driving transmission assembly relative to the sampling column;

[0026] A plurality of chain transmission members corresponding to the plurality of sampling boxes are arranged on the support assembly in a vertical direction; the chain transmission members are connected to the power output end of the first driving member;

[0027] The transmission chain of the chain transmission member extends to the side close to the sampling column in a horizontal direction, and at least one set of receiving boxes is arranged on each transmission chain.

[0028] In combination with the first aspect, in a possible implementation manner, the driving transmission assembly comprises:

[0029] The second driving member is arranged on the support assembly;

[0030] The gear transmission member is connected to the power transmission end of the second driving member at the driving end;

[0031] The first transmission member is arranged at the driven end of the gear transmission member and is rotatably connected to the sampling column in a vertical direction;

[0032] The second driving member drives the sampling column to move up and down in a vertical direction through the gear transmission member and the first transmission member.

[0033] Compared with the prior art, the scheme shown in the embodiments of the present application drives the sampling column to move up and down through the driving transmission assembly, so that the sampling box is in a sampling state after the sampling column extends into the soil to a preset depth and collects the soil sample of the corresponding layer, and the soil sample in the sampling box is transferred to the receiving assembly after the sampling column extends out of the soil, so as to perform sampling again; by arranging a plurality of sampling boxes arranged in an up-down interval, different depths of soil samples can be collected respectively, so as to improve the sampling speed and sampling efficiency.

[0034] In a second aspect, the present application further provides a soil sampling method, which uses the soil sampling device described above to perform sampling, and the soil sampling method comprises the following steps:

[0035] S1. The ground of the pre-sampling area is flattened, and the soil sampling device is transported to the flattened pre-sampling area;

[0036] S2. Start the driving transmission assembly, and after rotating the sampling column downward to a specified depth in the vertical direction, stop the driving transmission assembly;

[0037] S3. Put the sampling box in the sampling state, and after the sampling box collects the soil sample of the corresponding layer of soil, put the sampling box in the storage state;

[0038] S4. Start the driving transmission assembly in reverse, and after rotating the sampling column upward to a specified height flush with the storage assembly in the vertical direction, stop the driving transmission assembly;

[0039] S5. Put the sampling box in the sampling state, and transfer the soil sample collected in the sampling box to the storage assembly; then put the sampling box in the storage state;

[0040] S6. Repeat steps S1 to S5 until the sampling task of multiple pre-sampling areas is completed.

[0041] The sampling method provided in the present application has all the beneficial effects of the soil sampling device described above, and has fast sampling speed and high efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0042] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings needed to be used in the embodiments or prior art description. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can also be obtained by those skilled in the art without creative labor on the basis of these drawings.

[0043] Figure 1 Structure diagram of the soil sampling device provided in the embodiment of the present application Figure 1 ;

[0044] Figure 2 Structure diagram of the soil sampling device provided in the embodiment of the present application Figure 2 ;

[0045] Figure 3 Structure diagram of the soil sampling device provided in the embodiment of the present application Figure 1 ;

[0046] Figure 4 Structure diagram of the soil sampling device provided in the embodiment of the present application

[0047] In the figure: 1, support assembly; 2, driving transmission assembly; 21, second driving member; 22, gear transmission member; 23, first transmission member; 3, sampling assembly; 31, sampling column; 32, sampling box; 321, first side face; 322, second side face; 323, sliding plate; 324, sliding groove; 33, eccentric rod; 34, rotating member; 341, annular block; 342, connecting rib; 343, lever; 344, limiting member; 4, storage assembly; 41, storage box; 42, first driving member; 43, transmission chain. DETAILED DESCRIPTION

[0048] In order to make the technical problems to be solved by the present application, technical solutions and beneficial effects more clearly, the present application will be further described in detail below in combination with the drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application, and are not used to limit the present application.

[0049] It should be noted that when an element is referred to as "being disposed on" another element, it can be directly on the other element or indirectly on the other element. It should be understood that the terms "length", "width", "upper", "lower", "front", "back", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only used to facilitate the description of the present application and simplify the description, and therefore cannot be understood as indicating or implying that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0050] The terms "first", "second" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features defined with "first", "second" can explicitly or implicitly include one or more of the features. In the description of the present application, the meaning of "several" is two or more, unless otherwise explicitly and specifically limited.

[0051] Please refer to Figures 1 to 4The soil sampling device and the sampling method are described as follows. The soil sampling device comprises a supporting assembly 1, a driving transmission assembly 2, a sampling assembly 3 and a storage assembly 4. The supporting assembly 1 is arranged on the ground of a sampling area. The driving transmission assembly 2 is arranged on the supporting assembly 1 and has a power end moving up and down along the vertical direction. The sampling assembly 3 comprises a sampling column 31 arranged on the power end and moving up and down along with the power end. An eccentric rod 33 is rotatably connected to the sampling column 31 and eccentrically arranged on the sampling column 31. The upper end of the eccentric rod 33 extends out of the sampling column 31. A plurality of sampling boxes 32 are arranged on the eccentric rod 33 along the axial direction of the eccentric rod 33. The sampling box 32 has a storage state in the sampling column 31. When the eccentric rod 33 is rotated, the sampling box 32 rotates along with the eccentric rod 33. The sampling box 32 also has a sampling state of extending out of the sampling column 31 to collect the corresponding layer of soil. The storage assembly 4 is arranged on the supporting assembly 1 and is used to store the corresponding layer of soil collected by the sampling box 32. When the sampling column 31 moves up and down, the sampling box 32 is in the storage state. When the sampling column 31 extends into the designated position in the soil, the sampling box 32 is in the sampling state.

[0052] Optionally, universal wheels are arranged below the supporting assembly 1 to transport the sampling device to the ground of the sampling area. Preferably, the storage assembly 4 is located on the side opposite to the driving transmission assembly 2 relative to the sampling column 31.

[0053] It should be understood that the power end of the driving transmission assembly 2 is used to drive the sampling column 31 to move up and down to complete the sampling operation. Figure 1 Fig. 3 is a schematic view of the sampling column 31 extending into the soil. Figure 2 Fig. 4 is a schematic view of the sampling column 31 extending out of the soil.

[0054] When the eccentric rod 33 rotates in the sampling column 31, the sampling box 32 rotates along with the eccentric rod 33 to switch between the sampling state and the storage state. By arranging the eccentric rod 33, when the eccentric rod 33 rotates in the sampling column 31, the sampling box 32 rotates out of the sampling column 31 to sample and the switching between the storage state and the sampling state can be easily realized. By extending the upper end of the eccentric rod 33 out of the sampling column 31, the upper end of the eccentric rod 33 is rotated to rotate the sampling box 32.

[0055] Compared with the prior art, the soil sampling device and the sampling method have the following advantages.

[0056] Please refer to Figure 4 In some embodiments, the sampling box 32 has a fan-shaped structure, and two side surfaces of the sampling box 32 are defined as a first side surface 321 and a second side surface 322, wherein the first side surface 321 is located at the front end in the rotating direction of the sampling box 32; the first side surface 321 has an opening; the second side surface 322 is provided with a sliding plate 323 which is connected to the bottom wall of the sampling box 32 along the circumference of the eccentric rod 33; when the sampling box 32 is inserted into the soil along with the sampling column 31, the sliding plate 323 is arranged at the second side surface 322 to intercept the soil sample in the sampling box 32; after the sampling box 32 is pulled out of the soil along with the sampling column 31, the sliding plate 323 slides to the first side surface 321 to push the soil sample in the sampling box 32 out of the sampling box 32.

[0057] Specifically, when the sampling box 32 rotates in the soil, the opening is used to allow the soil of the corresponding layer to enter the sampling box 32 from the opening, and the sliding plate 323 is arranged at the second side surface 322 opposite to the opening to intercept the soil sample in the sampling box 32, so as to prevent the soil sample from falling out of the sampling box 32; after the sampling box 32 is pulled out of the soil along with the sampling column 31, the sliding plate 323 is used to slide to the opening along the circumference of the eccentric rod 33, so as to push the soil sample in the sampling box 32 out of the sampling box 32.

[0058] Optionally, the bottom surface of the sampling box 32 is provided with a sliding groove 324 for guiding the sliding plate 323 to slide on the bottom wall of the sampling box 32, so as to prevent the sliding plate 323 from deviating from the preset direction.

[0059] Please refer to Figure 3 For example, the sampling assembly 3 further comprises a rotating member 34 arranged in the sampling column 31, the rotating member 34 is connected with the sliding plates 323 of the plurality of sampling boxes 32 respectively, and the rotating member 34 is used to push the sliding plates 323 to slide along the circumference of the eccentric rod 33.

[0060] The rotating member 34 is arranged to push the sliding plates 323 to slide along the circumference of the eccentric rod 33, so as to push the soil sample in the sampling box 32 out of the sampling box 32 and into the storage assembly 4.

[0061] Please refer to Figure 3 and Figure 4In some embodiments, the rotating member 34 comprises a ring block 341, a plurality of connecting ribs 342 and a lever 343. The ring block 341 is arranged to rotate in the sampling column 31 and is arranged around the outer circumferential wall of the eccentric rod 33. The plurality of connecting ribs 342 correspond to the plurality of sliding plates 323 one by one. One end of the connecting rib 342 is connected to the corresponding sliding plate 323, and the other end is connected to the ring block 341. The lever 343 is arranged at the upper end of the ring block 341. One end of the lever 343 extends outwardly through the outer circumferential wall of the sampling column 31, and the lever 343 can rotate around the circumference of the sampling column 31. When the lever 343 is rotated along the circumference of the sampling column 31, the ring block 341 is arranged to push the corresponding sliding plate 323 to slide through the plurality of connecting ribs 342.

[0062] By extending the lever 343 horizontally out of the sampling column 31, the lever 343 is rotated. By arranging the ring block 341 to drive the connecting rib 342 to push the sliding plate 323 to slide, and by arranging the plurality of connecting ribs 342 to simultaneously push the plurality of sliding plates 323 to rotate, the simultaneous action of the plurality of sliding plates 323 is achieved, and the efficiency of soil sample transfer is improved.

[0063] Please refer to Figure 3 and Figure 4 In some embodiments, the upper end of the eccentric rod 33 is further connected to two sets of limiting members 344, which are arranged on both sides of the lever 343. The two sets of limiting members 344 are arranged to limit the rotation angle of the lever 343.

[0064] By arranging the limiting member 344, the position of the sliding plate 323 is fixed when soil sampling is performed, so as to intercept the soil sample entering the sampling box 32 and prevent the soil sample from falling out of the sampling box 32. Furthermore, by arranging the limiting member 344 at the upper end of the eccentric rod 33, the limiting member 344 and the lever 343 are ensured to rotate synchronously when the eccentric rod 33 rotates, so as not to affect the sampling.

[0065] Alternatively, as another arrangement of the above-mentioned limiting member 344, a threaded connecting member can be arranged at the upper end of the eccentric rod 33, which is screwed downwardly out of the upper end of the eccentric rod 33 and screwed into the lever 343 to limit the lever 343.

[0066] Please refer to Figure 3 The upper end of the eccentric rod 33 is provided with a rotating hand disc, and the limiting member 344 is arranged on the rotating hand disc. By arranging the rotating hand disc, the eccentric rod 33 is conveniently rotated, and the above-mentioned limiting member 344 is conveniently arranged.

[0067] Please refer to Figure 1 and Figure 2In some possible embodiments, the receiving assembly 4 comprises a plurality of receiving boxes 41 spaced apart in the vertical direction, and the plurality of receiving boxes 41 correspond to the plurality of sampling boxes 32 one by one; wherein, after the sampling column 31 drives the sampling box 32 to extend out of the soil, the receiving box 41 is used to hold the soil sample in the corresponding sampling box 32.

[0068] The plurality of receiving boxes 41 are arranged in the vertical direction to correspond to the sampling boxes 32 at different depths, so as to separately hold the collected soil samples at different depths.

[0069] Referring to Figure 1 In some embodiments, the receiving assembly 4 further comprises a first driving member 42 and a plurality of chain transmission members; the first driving member 42 is arranged on the support assembly 1 and located on the side opposite to the sampling column 31 and the driving transmission assembly 2; the plurality of chain transmission members correspond to the plurality of sampling boxes 32 one by one and are arranged on the support assembly 1 in the vertical direction; the chain transmission members are connected to the power output end of the first driving member 42; wherein, the transmission chain 43 of the chain transmission member extends to the side close to the sampling column 31 in the horizontal direction, and at least one set of receiving boxes 41 is arranged on each transmission chain 43.

[0070] Optionally, the first driving member 42 is a driving motor, which drives the chain transmission member to rotate through the driving shaft; the driven shaft is arranged on the support assembly 1; specifically, the chain transmission member comprises a driving sprocket, a driven sprocket and a transmission chain 43; the driving sprocket is arranged on the driving shaft, and the driven sprocket is arranged on the driven shaft.

[0071] It should be understood that, optionally, 6 to 12 sets of receiving boxes 41 are arranged on the transmission chain 43, and when the transmission chain 43 rotates, the plurality of receiving boxes 41 on the transmission chain 43 rotate to the side close to the sampling column 31 in turn, so as to hold different soil samples in turn.

[0072] Referring to Figure 1 In some possible embodiments, the driving transmission assembly 2 comprises a second driving member 21, a gear transmission member 22 and a first transmission member 23; the second driving member 21 is arranged on the support assembly 1; the gear transmission member 22 is connected to the power transmission end of the second driving member 21 at the driving end; the first transmission member 23 is engaged with the driven end gear of the gear transmission member 22; the center of the first transmission member 23 is provided with an internal thread for thread connection with the sampling column 31; wherein, the second driving member 21 drives the sampling column 31 to move up and down in the vertical direction through the gear transmission member 22 and the first transmission member 23.

[0073] It needs to be understood that the outer periphery of the first transmission member 23 is provided with transmission teeth for engaging with the driven end gear of the gear transmission member 22, and the center is provided with an internal thread for threadedly connecting with the sampling column 31. The second driving member 21 drives the first transmission member 23 to rotate through the gear transmission member 22, so that the sampling column 31 rotates up and down in the first transmission member 23, forming the power end described above.

[0074] Specifically, the second driving member 21 is selected to be a driving motor, the gear transmission member 22 includes a first gear arranged at the power output end of the driving motor, the transmission teeth on the outer peripheral wall of the first transmission member 23 form a second gear, and the second gear is engaged with the first gear to form a gear transmission structure; the center of the first transmission member 23 is provided with an internal thread, and the outer peripheral wall of the upper end of the sampling column 31 is provided with an external thread, so that the first transmission member 23 and the sampling column 31 are connected through the threads to form a screw nut structure, and drive the sampling column 31 to move up and down.

[0075] Preferably, the soil sampling device provided by the present application can sample the pre-sampling area with soft soil.

[0076] The present application also provides a soil sampling method, which uses the soil sampling device described above to sample, and the soil sampling method comprises the following steps:

[0077] S1. The ground of the pre-sampling area is leveled, and the soil sampling device is transported to the leveled pre-sampling area;

[0078] S2. Start the driving transmission assembly 2, and after rotating the sampling column 31 downward along the vertical direction to a specified depth, close the driving transmission assembly 2;

[0079] S3. Make the sampling box 32 in a sampling state, and after the sampling box 32 collects the soil sample of the corresponding layer of soil, make the sampling box 32 in a storage state;

[0080] S4. Start the driving transmission assembly 2 in reverse, and after rotating the sampling column 31 upward along the vertical direction to a specified height flush with the storage assembly 4, close the driving transmission assembly 2;

[0081] S5. Make the sampling box 32 in a sampling state, and transfer the corresponding layer of soil sample collected in the sampling box 32 to the storage assembly 4; and then make the sampling box 32 in a storage state;

[0082] S6. Repeat steps S1 to S5 until the sampling task of multiple pre-sampling areas is completed.

[0083] The sampling method provided by the present application has all the beneficial effects of the soil sampling device described above, and has fast sampling speed and high efficiency.

[0084] It is to be understood that, when performing step S5, the above-mentioned transferring the corresponding layer of soil sample collected in the sampling box 32 into the storage assembly 4 includes:

[0085] S51. The first driving member 42 is started to drive each transmission chain 43 to rotate one of the storage boxes 41 located on the transmission chain 43 to the side close to the sampling column 31, and the edge of the storage box 41 is placed below the sampling box 32;

[0086] S52. The push rod 343 is pushed to drive the corresponding sliding plate 323 to slide through the annular block 341 and the plurality of connecting ribs 342, so as to discharge the soil sample in the sampling box 32 out of the sampling box 32 and into the corresponding storage box 41;

[0087] S53. The push rod 343 is reversely pushed to drive the corresponding sliding plate 323 to reversely slide through the annular block 341 and the plurality of connecting ribs 342, so as to reset the sliding plate 323.

[0088] The above only describes the preferred embodiments of the present application and is not intended to limit the present application. Any modification, equivalent replacement and improvement within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. Soil sampling device, characterized in that, The utility model relates to a soil sampling device, including: supporting assembly for supporting on the ground of pre-sampling area; Driving transmission assembly is located supporting assembly on, has the power end that moves up and down along vertical direction; Sampling assembly, including being located power end and moving up and down with power end, the sampling column of sampling assembly is located power end and moves up and down, eccentricity is connected with the eccentricity rod that is arranged in the sampling column and is rotated in the sampling column, and the upper end of eccentricity rod is up and out of the sampling column;A plurality of sampling boxes are arranged on the eccentricity rod along the axial direction of the eccentricity rod, the sampling box has the storage state of being placed in the sampling column, and the sampling box also has the sampling state of collecting the corresponding layer soil when the protruding end of the eccentricity rod is rotated; Storage assembly is located supporting assembly on, the storage assembly is used for storing the corresponding layer soil sample collected by the sampling box;The storage assembly includes a plurality of storage boxes, a first driving member and a plurality of chain transmission members;A plurality of storage boxes are distributed along the vertical direction, and one-to-one correspondence with a plurality of sampling boxes;After the sampling column drives the sampling box to protrude from the soil, the storage box is used to contain the soil sample in the corresponding sampling box;The first driving member is arranged on the supporting assembly and located on the side opposite to the sampling column and the driving transmission assembly;A plurality of chain transmission members are arranged on the supporting assembly along the vertical direction, one-to-one correspondence with a plurality of sampling boxes;The chain transmission member is connected with the power output end of the first driving member;The transmission chain of the chain transmission member extends to the side close to the sampling column along the horizontal direction, and at least one set of storage boxes is arranged on each transmission chain; Wherein, when the sampling column moves up and down, the sampling box is in the storage state;After the sampling column is inserted into the designated position in the soil, the sampling box is in the sampling state;The sampling box is a fan-shaped structure, and two side surfaces of the sampling box are defined as a first side surface and a second side surface, wherein the first side surface is located at the front end of the rotation direction of the sampling box;The first side surface has an opening;The second side surface is provided with a sliding plate slidingly connected to the bottom wall of the sampling box along the circumference of the eccentricity rod;When the sampling box is inserted into the soil to sample along with the sampling column, the sliding plate is placed at the second side surface to intercept the soil sample entering the sampling box from the opening into the inner cavity of the sampling box;After the sampling column is pulled out of the soil, the sliding plate slides to the first side surface to push the soil sample in the sampling box out of the sampling box.

2. The soil sampling device of claim 1, wherein, The sampling assembly further includes a rotating member arranged in the sampling column, the rotating member is connected with the sliding plates of a plurality of sampling boxes respectively, and the rotating member is used to push the sliding plates to slide along the circumference of the eccentricity rod.

3. The soil sampling device of claim 2, wherein, The rotating member includes: Annular block, rotation is arranged in the sampling column, and is arranged on the outer peripheral wall of the eccentricity rod; A plurality of connecting ribs correspond to a plurality of sliding plates;One end of the connecting rib is connected with the corresponding sliding plate, and the other end is connected with the annular block; A pushing rod is arranged on the upper end of the annular block, one end of the pushing rod extends out of the peripheral wall of the sampling column, and the pushing rod can rotate around the circumference of the sampling column. When the pushing rod is pushed along the circumference of the sampling column, the annular block is used to push the corresponding sliding plates to slide respectively through the plurality of connecting ribs.

4. The soil sampling device of claim 3, wherein, The upper end of the eccentric rod is further connected with two sets of limiting members, the two sets of limiting members are respectively located on the two sides of the pushing rod, and the two sets of limiting members are used to limit the rotation angle of the pushing rod.

5. The soil sampling device of claim 4, wherein, The upper end of the eccentric rod is provided with a rotating hand disc, and the limiting members are arranged on the rotating hand disc.

6. The soil sampling device of claim 1, wherein, The driving transmission assembly comprises: A second driving member is arranged on the support assembly; A gear transmission member is connected with the power transmission end of the second driving member; A first transmission member is engaged with the driven end gear of the gear transmission member; the center of the first transmission member is provided with an internal thread for thread connection with the sampling column; The second driving member drives the sampling column to move up and down along the vertical direction through the gear transmission member and the first transmission member.

7. A method of soil sampling, characterized by, The soil sampling method using the soil sampling device according to any one of claims 1-6 comprises the following steps: S1. The ground of the pre-sampling area is leveled, and the soil sampling device is transported to the leveled pre-sampling area; S2. Start the driving transmission assembly, and after rotating the sampling column downward along the vertical direction to the specified depth, close the driving transmission assembly; S3. Make the sampling box in the sampling state, and after the sampling box collects the soil sample of the corresponding layer of soil, make the sampling box in the storage state; S4. Reverse start the driving transmission assembly, and after rotating the sampling column upward along the vertical direction to the specified height flush with the storage assembly, close the driving transmission assembly; S5. Make the sampling box in the sampling state, and transfer the corresponding layer of soil sample collected in the sampling box to the storage assembly; then make the sampling box in the storage state; S6. Repeat steps S1 to S5 until the sampling task of multiple pre-sampling areas is completed.

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