Soil sampling device

Abstract

The application provides a soil sampling device. The soil sampling device comprises a sampling assembly, a driving assembly and an operating assembly; the sampling assembly comprises a cutting piece and a soil receiving piece embedded in the cutting piece; the cutting piece has a cutting end facing away from the driving assembly, and a plurality of cutting structures are arranged at intervals in the circumferential direction of the cutting end; each cutting structure has at least one guide structure, which is arranged obliquely relative to the central axis of the cutting structure; and the guide structure is configured to guide the cut soil to be discharged through the annular gap on the side of the cutting piece when the cutting structure rotates. The application can reduce the damage to the soil compaction, make the soil sampling process more stable and reliable, save labor, and improve the integrity of the soil sample.

Description

Technical Field

[0001] This application relates to the field of soil sampling technology, and in particular to a soil sampling device. Background Technology

[0002] Soil sampling and analysis is a fundamental aspect of research in environmental, ecological, and agricultural fields. Accurate, adequate, and rapid acquisition of soil samples from different depths directly impacts the precision of the research and the reliability of the data.

[0003] Soil samplers, as tools for soil collection, directly affect the labor intensity, efficiency, and accuracy of subsequent determinations of basic soil physical parameters. However, conventional soil samplers can easily damage soil compaction during the soil compaction process and when removing the sampled soil from the container, resulting in poor soil sample integrity. Summary of the Invention

[0004] This application provides a soil sampling device that can reduce damage to soil compaction, making the soil sampling process more stable, reliable, and labor-saving, and improving the integrity of soil samples.

[0005] This application provides a soil sampling device, including: a sampling component, a driving component, and an operating component. The sampling component is connected to the driving end of the driving component, and the operating component is connected to the side of the driving component opposite to the driving end.

[0006] The sampling component includes a cutting component and a soil collection component embedded in the cutting component. The cutting component has a cutting end facing away from the driving component, and the soil collection component has a soil collection end facing away from the driving component. The cutting end and the soil collection end are located on the same side of the sampling component and are both open structures.

[0007] The cutting end is provided with a plurality of cutting structures spaced apart in the circumferential direction. Each cutting structure has at least one guide structure. The guide structure is inclined relative to the central axis of the cutting structure and is configured to guide the cut soil to be discharged through the annular gap on the side of the cutting member when the cutting structure rotates.

[0008] In one embodiment, the cutting structure has a first guide structure, wherein, along the same circumferential direction of the cutting end, a plurality of the first guide structures have the same tilt direction; and / or, a plurality of the first guide structures have the same tilt angle.

[0009] In one embodiment, the cutting structure has a first guide structure and a second guide structure, the first guide structure and the second guide structure being located on opposite sides of the central axis of the cutting structure and having different inclination directions.

[0010] In one embodiment, the number of cut structures sampled in the first type of soil stratum is greater than the number of cut structures sampled in the second type of soil stratum.

[0011] Alternatively, the spacing between adjacent cut structures sampled in the first type of soil stratum is smaller than the spacing between adjacent cut structures sampled in the second type of soil stratum.

[0012] The hardness of the first type of soil stratum is greater than that of the second type of soil stratum.

[0013] In one embodiment, the soil receiving component is a complete ring structure;

[0014] Alternatively, the soil collection component includes two semi-rings, which are spliced ​​together to form a complete ring. One of the semi-rings is provided with a limiting protrusion, and the other semi-ring is provided with a limiting groove. The limiting protrusion is correspondingly inserted into the limiting groove.

[0015] In one embodiment, the drive assembly includes a rotating member, a support member, and a drive member;

[0016] The rotating component is disposed at the driving end of the support component, and the side of the support component opposite to the driving end is connected to the operating component. The driving component is located between the rotating component and the support component, and is connected to the sampling component through the rotating component.

[0017] The driving member is configured to drive the rotating member to rotate, so that the rotating member drives the sampling assembly to rotate.

[0018] In one embodiment, the driving member includes a driving tooth and a driven tooth, the driving tooth is disposed on the support member, one end of the driven tooth meshes with the driving tooth, and the other end of the driven tooth is connected to the rotating member;

[0019] The active tooth is configured to drive the driven tooth to rotate, so that the driven tooth drives the rotating member and the sampling assembly to rotate.

[0020] In one embodiment, the drive assembly further includes a speed reducer and a drive motor, the drive motor being disposed on the support member, the drive gear being disposed on the drive motor, and the speed reducer being disposed between the drive gear and the drive motor.

[0021] In one embodiment, the operating component includes an operating connecting rod, a control switch, and an operating handle. The operating connecting rod is connected to the drive component, the operating handle is connected to the end of the operating connecting rod opposite to the drive component, and the control switch is disposed on the operating handle.

[0022] In one embodiment, the cutting element includes a cutting cylinder; and / or, the cutting structure includes cutting teeth; and / or, the guide structure includes a chamfer.

[0023] The soil sampling device provided in this application includes a driving component, which makes the soil sampling process more stable and reliable, and helps save manpower and resources. The sampling component includes a cutting element and a soil receiving element, which allows the soil receiving element to contain the soil sample, helping to preserve the basic original physical properties of the soil and ensuring the accuracy of subsequent tests on the soil sample. By having multiple cutting structures spaced circumferentially at the cutting end, each cutting structure having at least one guiding structure, it is possible to simultaneously advance the sample and discharge excess soil generated during the cutting process from the annular gap on the side of the cutting cylinder. This avoids the soil at the end being squeezed and damaged, thus compressing and damaging the basic physical parameters of the sampled soil, and also makes the sampling process more stable, reliable, convenient, and labor-saving. Attached Figure Description

[0024] To more clearly illustrate the technical solutions in the embodiments or exemplary embodiments of this application, the drawings used in the description of the embodiments or exemplary embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0025] Figure 1 This is a schematic diagram of the structure of the first soil sampling device provided in the embodiments of this application;

[0026] Figure 2 A cross-sectional view of the first soil sampling device provided in the embodiments of this application;

[0027] Figure 3 A schematic diagram of the sampling component of the first soil sampling device provided in the embodiments of this application;

[0028] Figure 4 A schematic diagram of the cutting structure of the first soil sampling device provided in the embodiments of this application;

[0029] Figure 5 This is a schematic diagram of the structure of the second type of soil sampling device provided in the embodiments of this application;

[0030] Figure 6 This is a schematic diagram of the sampling component of the second type of soil sampling device provided in the embodiments of this application;

[0031] Figure 7 This is a schematic diagram of the cutting structure of the second type of soil sampling device provided in the embodiments of this application;

[0032] Figure 8 A schematic diagram of the drive assembly of the soil sampling device provided in the embodiments of this application;

[0033] Figure 9 A schematic diagram of the operating components of the soil sampling device provided in the embodiments of this application.

[0034] Figure label:

[0035] 100. Sampling component; 110. Cutting component; 111. Cutting end; 120. Soil collection component; 121. Soil collection end; 122. Limiting protrusion; 123. Limiting groove; 130. Cutting structure; 131. First guide structure; 132. Second guide structure; 140. Quick-release flange; 150. Quick-release mounting hole;

[0036] 200. Drive assembly; 210. Rotating component; 220. Support component; 221. Upper support bearing; 222. Main body outer bracket; 223. Lower support bearing; 230. Drive component; 231. Driving gear; 232. Driven gear; 233. Drive motor; 240. Rechargeable battery; 250. Drive end;

[0037] 300. Operating component; 310. Operating connecting rod; 320. Control switch; 330. Operating handle. Detailed Implementation

[0038] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0039] In the description of this application, it should be understood that if terms such as "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" appear, these terms indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0040] Furthermore, where the terms "first" and "second" appear, these terms are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, where the term "multiple" appears, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0041] It should be noted that if an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. If an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. If so, the terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used in this application are for illustrative purposes only and do not represent the only possible implementation.

[0042] In related technologies, conventional soil samplers, when pressing soil into the sampler, lack a function to expel excess soil from the head section. This means the physical space occupied by the thicker part of the sampler wall is converted into volumetric compression of the sampled soil, thus causing some damage to the soil compaction during sampling. Another type of conventional sampler often uses methods such as tapping or pushing the end to remove the sample from the container, making it difficult to obtain a complete, undamaged columnar soil sample, which affects the accuracy of subsequent determinations of basic soil physical parameters.

[0043] To address the aforementioned issues, this application provides a soil sampling device that facilitates the simultaneous advancement of sampling and discharge of excess soil generated during the sampling process from the annular gap on the side of the cutting cylinder. This avoids the soil at the end being squeezed and damaged during soil cutting, thus compressing and damaging basic physical parameters such as soil density. It also makes the sampling process more stable, reliable, convenient, and labor-saving.

[0044] The following will combine Figures 1 to 9The specific structure of the soil sampling device provided in the embodiments of this application will be described.

[0045] Reference Figure 1 , Figure 2 and Figure 5 As shown, this application embodiment provides a soil sampling device, including a sampling component 100, a driving component 200 and an operating component 300. The sampling component 100 is connected to the driving end 250 of the driving component 200, and the operating component 300 is connected to the side of the driving component 200 opposite to the driving end 250. The driving component 200 is configured to drive the sampling component 100 to rotate.

[0046] For example, the drive component 200 can drive the sampling component 100 to rotate by electricity, thereby providing power for the rotation of the sampling component 100, which helps to collect soil samples efficiently and reduce the time and labor intensity of manual operation; at the same time, the rotation of the sampling component 100 can ensure that the collected soil samples are representative and avoid errors caused by uneven sampling.

[0047] For example, the rotation direction of the sampling component 100 is not limited. For instance, the driving component 200 can drive the sampling component 100 to rotate clockwise or counterclockwise. This embodiment does not limit this, and the rotation can be performed according to actual needs.

[0048] For example, the operating component 300 may be an operating handle or the like, which allows the user to easily control the sampling process and facilitates the maintenance and cleaning of the device.

[0049] To ensure soil integrity during the sampling process, this embodiment refers to... Figure 3 and Figure 6 As shown, the sampling component 100 may include a cutting member 110 and a soil collecting member 120 embedded in the cutting member 110. The cutting member 110 has a cutting end 111 facing away from the driving component 200, and the soil collecting member 120 has a soil collecting end 121 facing away from the driving component 200. The cutting end 111 and the soil collecting end 121 are located on the same side of the sampling component 100 and are both open structures.

[0050] For example, in this embodiment, the shape of the cutting component 110 and the soil collecting component 120 is not limited. For example, the cutting component 110 can be a cutting cylinder and the soil collecting component 120 can be a soil collecting cylinder. The specific shape can be set according to actual needs.

[0051] For example, in this embodiment, the connection relationship between the cutting component 110 and the soil collection component 120 is not limited. For example, the cutting component 110 and the soil collection component 120 can be designed separately, for example, they can be connected by a quick-release structure. Compared with the traditional integrated fixed sampler, the sample removal operation is more convenient and the device maintenance is more convenient.

[0052] It should be noted that, compared to conventional soil collectors that contain soil within a cutting cylinder, the soil extraction process requires striking the sampling head of the cutting cylinder or pushing the sample out from the end, making it difficult for the soil sample to retain its original columnar shape and other basic physical characteristics after extraction. Therefore, this application additionally provides a soil receiving component 120 in addition to the cutting cylinder. The soil receiving component 120 is installed inside the cutting cylinder. This facilitates simultaneous sampling and soil collection, eliminating the need for operators to switch tools between cutting the soil and collecting the sample, significantly reducing sampling time. Furthermore, the soil receiving component 120 can both collect and quickly and non-destructively separate the sampled soil, further ensuring the integrity of the soil sample after extraction.

[0053] For example, when using the soil collection component 120, it is placed inside the cutting cylinder. After the soil sampling is completed, the soil collection component 120 is removed from the cutting cylinder and separated to obtain a complete and undamaged soil sample.

[0054] For example, refer to Figure 3 and Figure 6 As shown, the cutting end 111 and the soil collection end 121 are designed as open structures, which allows the soil to enter the soil collection component 120 smoothly, reducing sample loss or contamination.

[0055] To further avoid damaging basic physical parameters such as soil density during soil cutting by squeezing the soil at the ends, this embodiment continues to refer to... Figure 3 , Figure 4 , Figure 6 and Figure 7 As shown, multiple cutting structures 130 can be spaced apart in the circumferential direction of the cutting end 111. Each cutting structure 130 has at least one guide structure. The guide structure is inclined relative to the central axis of the cutting structure 130. The guide structure is configured to guide the cut soil through the annular gap on the side of the cutting member 110 when the cutting structure 130 rotates.

[0056] For example, the guide structure in this embodiment can be a chamfer.

[0057] For example, the number, shape and size of the cutting structures 130 are not limited, and can be set according to actual needs; in addition, the arrangement of the cutting structures 130 is not limited. For example, multiple cutting ends 111 can be arranged at equal intervals in the circumferential direction of the cutting ends 111, or they can be arranged accordingly according to actual needs.

[0058] In this embodiment, refer to Figure 3 and Figure 6 As shown, the illustration primarily uses the example of multiple equally spaced cutting structures 130. The diameter of the outer envelope formed by the annular arrangement of the cutting structures 130 is larger than the diameter of the main body of the cutting cylinder. This ensures the uniformity of the soil sample during the cutting process, avoiding errors caused by uneven sampling. Simultaneously, it helps guide the removed soil through the annular gaps on the side of the cutting member 110, thereby preventing excessive compression of the soil sample during sampling and preserving the original density of the soil sample.

[0059] For example, refer to Figure 4 and Figure 7 As shown, the guide structure is inclined, so that when the cutting structure 130 rotates to cut the soil, the cut soil is discharged along the chamfered surface to the annular gap on the side of the cutting member 110 and discharged to the outside. This design reduces soil accumulation during the sampling process and improves sampling efficiency. On the other hand, by guiding the soil out, it reduces the possibility of soil blockage during the sampling process and ensures the smooth progress of the sampling process. Furthermore, it removes excess soil to avoid affecting the sampled soil and ensures the accuracy of the sampled soil.

[0060] Therefore, the soil sampling device provided in this embodiment is beneficial to achieve the simultaneous sampling and advancement, and discharge the excess soil generated during the sampling process from the annular gap on the side of the cutting cylinder. This avoids the soil at the end being squeezed and damaged during soil cutting, thus preventing damage to the basic physical parameters of the sampled soil, such as compaction. It also makes the sampling process more stable, reliable, convenient and labor-saving.

[0061] In some embodiments, reference is made to Figures 1 to 4 As shown, the cutting structure 130 may have a first guide structure 131, wherein, referring to Figure 4 As shown, along the same circumferential direction of the cutting end 111, the tilting direction of the plurality of first guide structures 131 may be the same, or the tilting angle of the plurality of first guide structures 131 may be the same.

[0062] For example, the tilting direction and tilting angle of the first guide structure 131 are not limited, and can be set according to the actual situation.

[0063] In this embodiment, by designing multiple first guide structures 131 with the same tilt direction and angle, it can be ensured that the cut soil can be guided and discharged along a uniform direction and path when the cutting structure 130 rotates, reducing soil accumulation during the sampling process and improving sampling efficiency. On the other hand, the consistent guide structure allows the soil to be smoothly discharged from the annular gap on the side of the cutting member 110, reducing the possibility of soil blockage during the sampling process. Furthermore, the spacing of multiple cutting structures 130 and the consistent guide structure can ensure the uniformity of the soil sample and avoid errors caused by uneven sampling.

[0064] In some embodiments, reference is made to Figures 5 to 7 As shown, the cutting structure 130 may have a first guide structure 131 and a second guide structure 132. Relative to the central axis of the cutting structure 130, the first guide structure 131 and the second guide structure 132 are located on opposite sides of the cutting structure 130 and are inclined in different directions.

[0065] For example, the cross-section of the cutting structure 130 in this embodiment can be a trapezoidal structure, and the cross-sectional shape of the first guide structure 131 and the second guide structure 132 can be a square structure, a circular structure or other structures. In this embodiment, the cross-sectional shape of the first guide structure 131 and the second guide structure 132 is mainly described as a square.

[0066] For example, refer to Figure 7 As shown, the first guide structure 131 can be inclined along the first direction A relative to the central axis of the cutting structure 130, and the second guide structure 132 can be inclined along the second direction B relative to the central axis of the cutting structure 130. The angle between the extension direction of the first guide structure 131 and the central axis of the cutting structure 130 can be α, and the angle between the extension direction of the second guide structure 132 and the central axis of the cutting structure 130 can be b. The angles α and β can be the same or different, and this embodiment does not limit this.

[0067] Furthermore, there are no restrictions on the specific angles of included angles a and b; they can be set according to the actual situation.

[0068] In practical applications, the first guide structure 131 and the second guide structure 132 are located on opposite sides of the cutting structure 130. In this way, when the cutting structure 130 rotates, it can guide the excised soil from two directions. This bidirectional guiding design can more effectively reduce soil accumulation during the sampling process.

[0069] Alternatively, in practical applications, the first guide structure 131 and the second guide structure 132 can be used independently. For example, when collecting soft or loose soil, the first guide structure 131 can be rotated clockwise to guide the excised soil out; or, when collecting harder soil, the second guide structure 132 can be rotated counterclockwise to guide the excised soil out; or, when collecting harder soil, the first guide structure 131 can be rotated clockwise first, and then the second guide structure 132 can be rotated counterclockwise to avoid the problem of losing part of the guide structure due to excessive soil hardness.

[0070] It should be noted that the rotation methods of the first guide structure 131 and the second guide structure 132, as well as the types of soil used, include, but are not limited to, the above-mentioned methods. The specific rotation can be carried out according to the actual situation.

[0071] In some embodiments, when dealing with different soil strata, for example, the hardness of the first type of soil stratum is greater than that of the second type of soil stratum, the cutting structure 130 is also adaptively adjusted in this embodiment. The first type of soil stratum can be hard soil, and the second type of soil stratum can be soft soil; this embodiment does not limit this.

[0072] For example, the number of cutting structures 130 sampled in the first type of soil stratum is greater than the number of cutting structures 130 sampled in the second type of soil stratum. That is, when sampling hard soil, a greater number of cutting structures 130 can be distributed, allowing for more efficient cutting and collection of soil samples, while also helping to avoid damage to the cutting structures 130 that could affect their normal use. When sampling soft soil, a smaller number of cutting structures 130 can be distributed, thus reducing unnecessary cutting and increasing sampling speed.

[0073] For example, the spacing between adjacent cut structures 130 sampled in the first type of soil stratum is smaller than the spacing between adjacent cut structures 130 sampled in the second type of soil stratum. That is, the cut structures 130 are more densely distributed when sampling hard soil, and more sparsely distributed when sampling soft soil.

[0074] By adjusting the distribution of the cutting structure 130, uniform soil samples can be obtained in soil layers of different hardness, avoiding errors caused by uneven sampling. In addition, this design allows the sampling device to adapt to soil layers of different hardness, improving the applicability of the device. Moreover, adjusting the distribution of the cutting structure 130 according to the soil hardness allows the device to flexibly meet different sampling needs.

[0075] In some embodiments, the soil receiving component 120 can be a complete ring structure. This complete ring structure design reduces the time wasted during assembly and disassembly during sampling, improving sampling efficiency; it also better maintains the integrity of the soil sample, avoiding sample damage due to structural instability; furthermore, the stable structural design allows the sampling device to be inserted deeper into the soil, achieving deeper sampling.

[0076] Alternatively, the soil collection component 120 may include two semi-rings, which are spliced ​​together to form a complete ring. This semi-ring structure design makes the assembly and disassembly of the soil collection component 120 simpler and reduces the labor intensity of operators.

[0077] In this embodiment, refer to Figure 3 and Figure 6 As shown, the soil collection component 120, which includes two semi-rings, is used as an example for illustration. For instance, the diameter of the two semi-rings after being spliced ​​together is adapted to the inner diameter of the cutting cylinder. During operation, they are placed inside the cutting cylinder. After soil sampling is completed, the two semi-rings are removed from the cutting cylinder and separated to obtain a complete and undamaged columnar soil sample.

[0078] In this embodiment, a limiting protrusion 122 may be provided on one half-ring, and a limiting groove 123 may be provided on the other half-ring, with the limiting protrusion 122 correspondingly inserted into the limiting groove 123. The cooperation between the limiting groove 123 and the limiting protrusion 122 provides stable structural support, reducing structural loosening caused by vibration or external forces during sampling. For example, the soil collection component 120 may be provided with a pull-out ring structure for pulling it out of the cutting cylinder.

[0079] In some embodiments, reference is made to Figure 8 As shown, the drive assembly 200 may include a rotating member 210, a support member 220, and a drive member 230; wherein, the rotating member 210 is disposed at the drive end 250 of the support member 220, and the side of the support member 220 opposite to the drive end 250 is connected to the operation assembly 300; the drive member 230 is located between the rotating member 210 and the support member 220 and is connected to the rotating member 210; the rotating member 210 is connected to the sampling assembly 100; the drive member 230 is configured to drive the rotating member 210 to rotate, so that the rotating member 210 drives the sampling assembly 100 to rotate.

[0080] For example, the rotating component 210 can be a rotating spindle.

[0081] In this way, the support member 220 provides stable support for the entire drive assembly 200, reducing structural loosening caused by vibration or external force during the sampling process; the drive member 230 drives the sampling assembly 100 to rotate through the rotating member 210, which can provide stable power output and ensure the continuity and efficiency of the sampling process. At the same time, the cooperative design of the support member 220 and the rotating member 210 enables the sampling assembly 100 to sample quickly, reduce sampling time, achieve a high degree of automation, save manpower and material resources, and achieve high sampling accuracy.

[0082] In some embodiments, reference is made to Figure 8 As shown, the driving member 230 may include a driving tooth 231 and a driven tooth 232. The driving tooth 231 is disposed on the support member 220. One end of the driven tooth 232 meshes with the driving tooth 231, and the other end of the driven tooth 232 is connected to the rotating member 210. The driving tooth 231 is configured to drive the driven tooth 232 to rotate, so that the driven tooth 232 drives the rotating member 210 and the sampling assembly 100 to rotate.

[0083] For example, the connection method between the active tooth 231 and the support member 220 is not limited. For instance, it can be installed by screws. In addition, the driven tooth 232 and the rotating member 210 can also be connected by screws. This embodiment does not limit this, and the specific configuration can be made according to actual needs.

[0084] In this way, on the one hand, through the meshing of the active gear 231 and the driven gear 232, power can be efficiently transmitted from the driving component 230 to the rotating component 210, ensuring the stable rotation of the sampling component 100; on the other hand, gear transmission can reduce energy loss during transmission and improve the energy efficiency of the entire device; furthermore, gear transmission can ensure the uniform rotation of the rotating component 210, making the sampling component 100 cut and collect samples more evenly in the soil and reducing sampling errors.

[0085] Furthermore, by adjusting the number of teeth on the driving gear 231 and the driven gear 232, the transmission ratio can be changed to adapt to soil conditions with different hardness and moisture levels. For example, a lower transmission ratio can be used in hard soil layers to increase torque, while a higher transmission ratio can be used in soft soil layers to increase rotational speed. This design allows the sampling device to be flexibly adjusted according to different sampling needs, improving the device's applicability.

[0086] In addition, the gear transmission design allows operators to control the rotation of the sampling component 100 with simple operation, reducing operational complexity. Moreover, the automated design helps to reduce manual intervention and improve the automation level of the sampling process.

[0087] In some embodiments, reference is made to Figure 7As shown, the drive assembly 200 may also include a reducer and a drive motor 233. The drive motor 233 is mounted on the support member 220, the drive gear 231 is mounted on the drive motor 233, and the reducer is mounted between the drive gear 231 and the drive motor 233.

[0088] The use of a speed reducer serves several purposes. First, it allows for precise control of the rotational speed and torque of the sampling component 100, ensuring the stability and efficiency of the sampling process. Furthermore, the speed reducer lowers the rotational speed of the drive motor 233, thereby reducing energy consumption and improving the overall energy efficiency of the device. Second, it ensures that the sampling component 100 rotates uniformly in the soil, reducing sampling errors caused by uneven rotational speed. Third, the speed reducer absorbs vibrations and impacts generated during the operation of the drive motor 233, protecting it from damage and reducing vibration during the sampling process. The speed reducer's buffering and shock absorption functions improve the reliability of the entire device and reduce malfunctions.

[0089] In addition, by adjusting the reduction ratio, different sampling requirements can be flexibly met, such as using higher torque in hard soil layers and higher rotation speed in soft soil layers.

[0090] For example, in this embodiment, refer to Figure 7 As shown, it may also include a rechargeable battery 240, such as a storage battery, which is mounted on the support 220 to provide power to drive the drive motor 233.

[0091] For example, in this embodiment, refer to Figure 7 As shown, the support member 220 may include an upper support bearing 221, a main body outer bracket 222 and a lower support bearing 223. The bottom of the rotating spindle is provided with a flange and a quick-release pin, which engages with the quick-release flange 140 of the cutting head on the right side of the cutting cylinder. The quick-release pin is adapted to the quick-release mounting hole 150 on the quick-release flange 140 of the cutting head to achieve quick disassembly and assembly.

[0092] For example, the number of quick-release mounting holes 150 may include multiple holes. Each quick-release mounting hole 150 consists of a large mounting hole and a strip hole, which are connected and engaged with the quick-release pin at the end of the rotating spindle to achieve quick mounting and dismounting.

[0093] For example, the lower support bearing 223 supports the lower part of the rotating spindle, the driving gear 231 is mounted on the reducer and drive motor 233, the upper support bearing 221 supports the upper part of the rotating spindle, and the main body outer bracket 222 serves as both an overall support for the device and a mounting point for the reducer, drive motor 233, battery, etc. The driven gear 232 is fixedly mounted on the rotating spindle and meshes with the driving gear 231.

[0094] In some embodiments, reference is made to Figure 9As shown, the operating component 300 may include an operating connecting rod 310, a control switch 320, and an operating handle 330. The operating connecting rod 310 is connected to the drive component 200, the operating handle 330 is connected to the end of the operating connecting rod 310 away from the drive component 200, and the control switch 320 is disposed on the operating handle 330.

[0095] For example, the control switch 320 is used to control the rotation start and stop of the sampling component 100, so that the operator can centrally control the start, stop and speed adjustment of the sampling device without having to operate in different parts, thus improving the convenience of operation.

[0096] The soil sampling device provided in this application embodiment is advantageous in that it can simultaneously advance the sampling process and discharge the excess soil generated during the sampling process from the annular gap on the side of the cutting cylinder. This avoids the soil at the end being squeezed and damaged during the cutting process, thus preventing damage to the basic physical parameters of the sampled soil, such as its density. It also makes the sampling process more stable, reliable, convenient, and labor-saving.

[0097] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0098] The above embodiments merely illustrate several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. A soil sampling device, characterized by, The sampling device comprises a sampling assembly, a driving assembly and an operating assembly, the sampling assembly is connected to a driving end of the driving assembly, and the operating assembly is connected to a side of the driving assembly away from the driving end; The sampling assembly comprises a cutting member and a soil receiving member embedded in the cutting member, the cutting member has a cutting end away from the driving assembly, the soil receiving member has a soil receiving end away from the driving assembly, the cutting end and the soil receiving end are located on the same side of the sampling assembly, and both are open structures; A plurality of cutting structures are circumferentially arranged on the cutting end, each cutting structure has a first guide structure and a second guide structure, and the first guide structure and the second guide structure are located on opposite sides of the cutting structure; The first guide structure is inclined in a first direction A compared to the central axis of the cutting structure, and the second guide structure is inclined in a second direction B compared to the central axis of the cutting structure, wherein the angle between the extension direction of the first guide structure and the central axis of the cutting structure is a, and the angle between the extension direction of the second guide structure and the central axis of the cutting structure is b, wherein the angles a and b are different; When collecting soft or loose soil, the cutting structure is configured to rotate the first guide structure clockwise to guide the cut soil to be discharged in the first direction A; When collecting soil with higher hardness, the cutting structure is configured to rotate the second guide structure counterclockwise to guide the cut soil to be discharged in the second direction B; or, when collecting soil with higher hardness, the cutting structure is configured to first rotate the first guide structure clockwise and then rotate the second guide structure counterclockwise.

2. The soil sampling device of claim 1, wherein, The number of distributed cutting structures in the first type of soil stratum is greater than the number of distributed cutting structures in the second type of soil stratum; Or, the spacing between adjacent cutting structures in the first type of soil stratum is less than the spacing between adjacent cutting structures in the second type of soil stratum; Wherein, the hardness of the first type of soil stratum is greater than the hardness of the second type of soil stratum.

3. The soil sampling device of claim 1, wherein, The soil receiving member is an integral ring structure; Or, the soil receiving member comprises two half rings, the two half rings are spliced into an integral ring, one of the half rings is provided with a limiting protrusion, and the other half ring is provided with a limiting groove, and the limiting protrusion is inserted into the limiting groove.

4. The soil sampling device of claim 1, wherein, The driving assembly comprises a rotating member, a supporting member and a driving member; The rotating member is arranged at the driving end of the supporting member, the side of the supporting member away from the driving end is connected to the operating assembly, and the driving member is located between the rotating member and the supporting member and connected to the sampling assembly through the rotating member; The driving member is configured to drive the rotating member to rotate, so that the rotating member drives the sampling assembly to rotate.

5. The soil sampling device of claim 4, wherein, The driving member comprises a driving tooth and a driven tooth, the driving tooth is arranged on the supporting member, one end of the driven tooth is engaged with the driving tooth, and the other end of the driven tooth is connected to the rotating member; The driving assembly further comprises a reduction gear and a driving motor, the driving motor is arranged on the support, the driving gear is arranged on the driving motor, and the reduction gear is arranged between the driving gear and the driving motor.

6. The soil sampling device of claim 5, wherein, The operation assembly comprises an operation connecting rod, a control switch and an operation handle, the operation connecting rod is connected with the driving assembly, the operation handle is connected to the end of the operation connecting rod away from the driving assembly, and the control switch is arranged on the operation handle.

7. The soil sampling device of claim 1, wherein, The cutting member comprises a cutting cylinder; and / or the cutting structure comprises a cutting tooth; and / or the guide structure comprises a chamfer.

8. The soil sampling device of claim 1, wherein, ​

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