Soil sampling device

Abstract

The invention provides a soil sampling device. The soil sampling device comprises a sampling assembly, a driving assembly and an operation assembly; the sampling assembly comprises a cutting piece and a soil storage piece embedded in the cutting piece; the cutting piece is provided with a cutting end deviating from the driving assembly, a plurality of cutting structures are arranged in the circumferential direction of the cutting end at intervals, each cutting structure is provided with at least one guide structure, and the guide structures are obliquely arranged relative to the central axis of the cutting structure; and the guide structure is configured to guide the cut soil to be discharged from the annular gap in the side surface of the cutting piece when the cutting structure rotates. According to the application, the damage to the compactness of the soil can be reduced, so that the soil sampling process is more stable, reliable and labor-saving, and the integrity of the soil sample is improved.

Description

Technical Field

[0001] The present application relates to the technical field of soil sampling, and in particular to a soil sampling device. Background Art

[0002] Soil sampling and analysis is the basis of research on environment, ecology, agriculture, etc. Accurate, appropriate and rapid acquisition of soil samples at different depths is directly related to the accuracy of the research and the reliability of the data.

[0003] As a tool for soil collection, soil samplers directly affect the labor intensity and work efficiency of soil sampling work and the accuracy of subsequent determination of basic physical parameters of soil. However, conventional soil samplers are prone to damage the soil density when pressing into the soil for sampling and when taking the sampled soil out of the container, resulting in poor integrity of the soil sample. Summary of the invention

[0004] The embodiment of the present application provides a soil sampling device, which can reduce the damage to the soil density, make the soil sampling process more stable, reliable and labor-saving, and improve the integrity of the soil sample.

[0005] The embodiment of the present application provides a soil sampling device, comprising: a sampling component, a driving component and an operating component, wherein the sampling component is connected to a driving end of the driving component, and the operating component is connected to a side of the driving component away from the driving end;

[0006] The sampling assembly includes a cutting piece and a soil receiving piece embedded in the cutting piece, the cutting piece has a cutting end away from the driving assembly, the soil receiving piece 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;

[0007] A plurality of cutting structures are arranged at intervals in the circumferential direction of the cutting end, each of the cutting structures having at least one guide structure, the guide structure being arranged obliquely relative to the central axis of the cutting structure, and being configured to guide the excised soil to be discharged through the annular gap on the side of the cutting piece 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 inclination direction; and / or a plurality of the first guide structures have the same inclination angle.

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

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

[0011] Or, the spacing between adjacent cutting structures located in the first type of soil stratum for sampling is smaller than the spacing between adjacent cutting structures located in the second type of soil stratum for sampling;

[0012] Wherein, the hardness of the first type of soil stratum is greater than the hardness of the second type of soil stratum.

[0013] In one embodiment, the soil storage member is a full ring structure;

[0014] Alternatively, the soil storage member comprises two half rings, which are spliced ​​into a full ring, wherein a limiting protrusion is arranged on one of the half rings, and a limiting groove is arranged on the other half ring, and the limiting protrusion is correspondingly inserted into the limiting groove.

[0015] In one embodiment, the driving assembly includes a rotating member, a supporting member and a driving member;

[0016] 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, the driving member is located between the rotating member and the supporting member, and is connected to the sampling assembly through the rotating member;

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

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

[0019] The driving teeth are configured to drive the driven teeth to rotate, so that the driven teeth drive the rotating member and the sampling component to rotate.

[0020] In one embodiment, the driving assembly further includes a reducer and a driving motor, the driving motor is arranged on the supporting member, the active tooth is arranged on the driving motor, and the reducer is arranged between the active tooth and the driving motor.

[0021] In one embodiment, the operating assembly includes an operating connecting rod, a control switch, and an operating handle. The operating connecting rod is connected to the driving assembly. The operating handle is connected to the end of the operating connecting rod away from the driving assembly. The control switch is disposed on the operating handle.

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

[0023] The soil sampling device provided by the embodiments of the present application includes a driving assembly, so that the soil sampling process is more stable and reliable, which is conducive to saving manpower and material resources; by including a sampling assembly, the sampling assembly includes a cutting member and a soil receiving member, so that the soil receiving member can accommodate the sample soil, which helps to ensure the basic original physical properties of the soil and ensures the measurement accuracy of various subsequent tests on the soil sample; by circumferentially arranging a plurality of cutting structures at intervals on the cutting end, and the cutting structure has at least one guiding structure, so that it is beneficial to realize discharging the redundant part generated by cutting the soil during the sampling process from the annular gap on the side of the cutting cylinder while advancing the sampling, avoiding the extrusion of the soil at the end during soil cutting from damaging the basic physical parameters such as the compactness of the sampled soil, and at the same time making the sampling process more stable, reliable, convenient and labor-saving. Description of the Drawings

[0024] In order to more clearly illustrate the technical solutions in the embodiments of the present application or exemplary embodiments, the following will briefly introduce the drawings required for the description of the embodiments or exemplary embodiments. Obviously, the following drawings are only some embodiments of the present application. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained according to these drawings.

[0025] Figure 1 It is a schematic structural diagram of the first soil sampling device provided by the embodiments of the present application;

[0026] Figure 2 It is a sectional view of the first soil sampling device provided by the embodiments of the present application;

[0027] Figure 3 It is a schematic structural diagram of the sampling assembly of the first soil sampling device provided by the embodiments of the present application;

[0028] Figure 4 It is a schematic structural diagram of the cutting structure of the first soil sampling device provided by the embodiments of the present application;

[0029] Figure 5 It is a schematic structural diagram of the second soil sampling device provided by the embodiments of the present application;

[0030] Figure 6 Structural schematic diagram of the sampling component of the second soil sampling device provided by the embodiment of the present application;

[0031] Figure 7 Structural schematic diagram of the cutting structure of the second soil sampling device provided by the embodiment of the present application;

[0032] Figure 8 Structural schematic diagram of the driving component of the soil sampling device provided by the embodiment of the present application;

[0033] Figure 9 Structural schematic diagram of the operating component of the soil sampling device provided by the embodiment of the present application.

[0034] Reference numerals:

[0035] 100, sampling component; 110, cutting member; 111, cutting end; 120, soil storage member; 121, soil storage end; 122, limiting protrusion; 123, limiting groove; 130, cutting structure; 131, first guiding structure; 132, second guiding structure; 140, quick-release flange; 150, quick-release mounting hole;

[0036] 200, driving component; 210, rotating member; 220, supporting member; 221, upper supporting bearing; 222, main body outer bracket; 223, lower supporting bearing; 230, driving member; 231, driving gear; 232, driven gear; 233, driving motor; 240, charging battery; 250, driving end;

[0037] 300, operating component; 310, operating connecting rod; 320, control switch; 330, operating handle. Detailed implementation manners

[0038] In order to make the above objects, features, and advantages of the present application more obvious and understandable, the following will describe the detailed implementation manners of the present application in conjunction with the accompanying drawings. Many specific details are set forth in the following description in order to fully understand the present application. However, the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without departing from the connotation of the present application. Therefore, the present application is not limited by the specific embodiments disclosed below.

[0039] In the description of the present application, it should be understood that if there are terms such as "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., the orientation or positional relationship indicated by these terms is based on the orientation or positional relationship shown in the drawings. These are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present application.

[0040] In addition, if there are terms such as "first" and "second", these terms are only used for descriptive purposes and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include at least one of such features. In the description of the present application, if there is a term "plurality", the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise specifically defined.

[0041] It should be noted that if an element is referred to as "fixed to" or "disposed on" another element, it can be directly on the other element or there may also be an intermediate 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 intermediate element at the same time. If so, the terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used in the present application are only for illustrative purposes and do not represent the only implementation.

[0042] In the related art, when a conventional soil sampler is pressed into the soil for sampling, there is no function of discharging the excess soil at the head cutting part. That is, the physical space occupied by the wall thickness part of the sampler will be converted into the volume compression of the sampled soil, that is, the soil density is damaged to a certain extent during sampling. When another conventional sampler takes out the sampled soil from the container, it often uses methods such as knocking and pushing at the end to take out the sample, and it is difficult to obtain a complete undamaged columnar soil sample, which will affect the measurement accuracy of the subsequent basic physical parameters of the soil.

[0043] To solve the above problems, the embodiments of the present application provide a soil sampling device, which is conducive to discharging the excess part generated by cutting the soil during the sampling process from the annular gap on the side of the cutting cylinder while advancing the sampling, avoiding the extrusion of the end soil during soil cutting from damaging the basic physical parameters such as the soil density of the sampled soil, and at the same time making the sampling process more stable, reliable, convenient and labor-saving.

[0044] The following will be combined with Figures 1 to 9The specific structure of the soil sampling device provided in the embodiment of the present application is described.

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

[0046] Illustratively, the driving assembly 200 can electrically drive the sampling assembly 100 to rotate, thereby providing power for the rotation of the sampling assembly 100, thereby facilitating efficient collection of soil samples and reducing the time and labor intensity of manual operations; at the same time, the rotation of the sampling assembly 100 can ensure that the collected soil samples are representative and avoid errors caused by uneven sampling.

[0047] Illustratively, there is no limitation on the rotation direction of the sampling component 100. For example, the driving component 200 can drive the sampling component 100 to rotate in a clockwise direction, or the driving component 200 can drive the sampling component 100 to rotate in a counterclockwise direction. This embodiment does not limit this, and the sampling component 100 can be rotated according to actual needs.

[0048] Exemplarily, the operating component 300 may be an operating handle, etc., so that the user can conveniently control the sampling process and facilitate maintenance and cleaning of the device.

[0049] In order to ensure the integrity of the soil during sampling, in this example, Figure 3 and Figure 6 As shown, the sampling assembly 100 may include a cutting piece 110 and a soil receiving piece 120 embedded in the cutting piece 110, wherein the cutting piece 110 has a cutting end 111 away from the driving assembly 200, and the soil receiving piece 120 has a soil receiving end 121 away from the driving assembly 200, and the cutting end 111 and the soil receiving end 121 are located on the same side of the sampling assembly 100, and both are open structures.

[0050] For example, in this embodiment, the shapes of the cutting member 110 and the soil receiving member 120 are not limited. For example, the cutting member 110 may be a cutting cylinder, and the soil receiving member 120 may be a soil receiving cylinder. The shapes may be configured according to actual needs.

[0051] Exemplarily, in this embodiment, the connection relationship between the cutting member 110 and the soil receiving member 120 is not limited. Exemplarily, the cutting member 110 and the soil receiving member 120 can be designed as a split type, for example, they can be connected through a quick-release structure. Compared with the traditional integrally fixed sampler, the operation of taking out the sample is more convenient, and the device maintenance is more convenient.

[0052] It should be noted that compared with the conventional soil collector that stores soil in the cutting cylinder, during the process of taking out the soil, it is necessary to strike the sampling head of the cutting cylinder or push the sample out from the end, making it difficult for the soil sample to maintain its original columnar shape and other basic physical characteristics after being taken out. Therefore, in this application, a soil receiving member 120 is additionally provided on the basis of the cutting cylinder. The soil receiving member 120 is installed inside the cutting cylinder. In this way, on the one hand, it helps to achieve the function of sampling and storing soil at the same time, and the operator does not need to switch tools between cutting the soil and collecting the sample, significantly reducing the sampling time; on the other hand, the soil receiving member 120 can play a role in receiving and quickly and non-destructively separating the sampled soil, further ensuring the integrity of the soil sample after being taken out.

[0053] Exemplarily, when the soil receiving member 120 is in use, it is placed inside the cutting cylinder. After the soil sampling is completed, the soil receiving member 120 is taken out and separated from the cutting cylinder, and then a complete and non-destructive soil sample is obtained.

[0054] Exemplarily, referring to Figure 3 and Figure 6 as shown, the cutting end 111 and the soil receiving end 121 are designed as open structures, so that the soil can smoothly enter the soil receiving member 120, reducing the loss or contamination of the sample.

[0055] In order to further avoid the end soil extrusion from damaging the basic physical parameters such as the soil density during cutting the soil, in this embodiment, continuing to refer to Figure 3 、 Figure 4 、 Figure 6 and Figure 7 as shown, a plurality of cutting structures 130 can be arranged at intervals in the circumferential direction of the cutting end 111. Each cutting structure 130 has at least one guiding structure, and the guiding structure is inclined relative to the central axis of the cutting structure 130. The guiding structure is configured to guide the cut soil to be discharged through the annular gap on the side of the cutting member 110 when the cutting structure 130 rotates.

[0056] Exemplarily, the guiding structure in this embodiment can be a chamfer.

[0057] Exemplarily, the number, shape, and size of the cutting structure 130 are not limited and can be specifically set according to actual needs. Additionally, the arrangement manner of the cutting structure 130 is not limited. Exemplarily, in the circumferential direction of the cutting end 111, the circumferences of multiple cutting ends 111 can be arranged at equal intervals, or can be arranged accordingly according to actual needs.

[0058] In this embodiment, with reference to Figure 3 and Figure 6 as shown, mainly taking the example of multiple cutting structures 130 arranged at equal intervals for illustration, the outer envelope diameter formed by the annular arrangement of the cutting structures 130 is greater than the body diameter of the cutting cylinder. In this way, during the process of cutting soil, the uniformity of the soil sample can be ensured, and errors caused by uneven sampling can be avoided. At the same time, it helps to ensure that the cut soil is guided to be discharged through the annular gap on the side of the cutting member 110, thereby avoiding excessive compression of the soil sample during the sampling process and ensuring the original density of the soil sample.

[0059] Exemplarily, with reference to Figure 4 and Figure 7 as shown, the guiding structure is inclined. In this way, 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, on the one hand, reduces the accumulation of soil during the sampling process and improves the sampling efficiency; on the other hand, by guiding the discharge of soil, it reduces the possibility of soil blockage during the sampling process and ensures the smooth progress of the sampling process; on the third hand, it discharges the 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 conducive to discharging the excess part generated during the cutting of the soil during the sampling process from the annular gap on the side of the cutting cylinder while sampling and advancing, avoiding the extrusion of the end soil during the cutting of the soil from damaging the basic physical parameters such as the density of the sampled soil, and at the same time making the sampling process more stable, reliable, convenient, and labor-saving.

[0061] In some embodiments, with reference to Figures 1 to 4 as shown, the cutting structure 130 can have a first guiding structure 131. Among them, with reference to Figure 4 as shown, along the same direction in the circumferential direction of the cutting end 111, the inclination directions of multiple first guiding structures 131 can be the same, or the inclination angles of multiple first guiding structures 131 can be the same.

[0062] Exemplarily, the inclination direction and inclination angle of the first guiding structure 131 are not limited and can be specifically set according to the actual situation.

[0063] In this embodiment, by designing that the inclination directions and angles of multiple first guiding structures 131 are the same, it can ensure that when the cutting structure 130 rotates, the cut soil can be guided and discharged along a unified direction and path, reducing the accumulation of soil during the sampling process and improving the sampling efficiency. On the other hand, with a consistent guiding structure, the soil can smoothly discharge from the annular gap on the side of the cutting member 110, reducing the possibility of soil blockage during the sampling process. On the other hand, the spaced arrangement of multiple cutting structures 130 and the consistent guiding structure can ensure the uniformity of the soil sample and avoid errors caused by uneven sampling.

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

[0065] Exemplarily, the cross-section of the cutting structure 130 in this embodiment may be a trapezoidal structure, and the cross-sectional shapes of the first guiding structure 131 and the second guiding structure 132 may be square structures, circular structures or other structures. In this embodiment, the cross-sectional shapes of the first guiding structure 131 and the second guiding structure 132 are mainly taken as an example of square structures for illustration.

[0066] Exemplarily, referring to Figure 7 As shown, the first guiding structure 131 may be inclined along the first direction A relative to the central axis of the cutting structure 130, and the second guiding structure 132 may be inclined along the second direction B relative to the central axis of the cutting structure 130. Among them, the included angle between the extending direction of the first guiding structure 131 and the central axis of the cutting structure 130 may be a, and the included angle between the extending direction of the second guiding structure 132 and the central axis of the cutting structure 130 may be b. Among them, the included angle a and the included angle b may be the same or different, and this embodiment does not limit this.

[0067] In addition, the specific angles of the included angles a and b are not limited either, and can be specifically set according to the actual situation.

[0068] In practical applications, the first guiding structure 131 and the second guiding 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 cut soil to discharge from two directions, and this two-way guiding design can more effectively reduce the accumulation of soil during the sampling process.

[0069] Alternatively, in practical applications, the first guiding structure 131 and the second guiding structure 132 can be used separately. Exemplarily, when collecting soft or loose soil, the first guiding structure 131 can be rotated clockwise to guide the cut soil to be discharged; or, when collecting soil with a greater hardness, the second guiding structure 132 can be rotated counterclockwise to guide the cut soil to be discharged; or, when collecting soil with a greater hardness, the first guiding structure 131 can be rotated clockwise first and then the second guiding structure 132 can be rotated counterclockwise to avoid the problem of losing part of the guiding structure due to excessive soil hardness.

[0070] It should be noted that the rotation modes of the first guiding structure 131 and the second guiding structure 132, as well as the types of soils applied, include but are not limited to the above-mentioned various modes, and can be specifically rotated according to the actual situation.

[0071] In some embodiments, when targeting 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. Among them, the first type of soil stratum can be hard soil, and the second type of soil stratum can be soft soil, and this embodiment does not make any limitations in this regard.

[0072] Exemplarily, the distribution quantity of the cutting structure 130 for sampling in the first type of soil stratum is more than that of the cutting structure 130 for sampling in the second type of soil stratum. That is to say, when sampling hard soil, the distribution quantity of the cutting structure 130 can be more, so as to be able to cut and collect soil samples more effectively. At the same time, it also helps to avoid the problem that the cutting structure 130 is damaged and affects normal use. When sampling soft soil, the distribution quantity of the cutting structure 130 can be less, so that unnecessary cutting can be reduced and the sampling speed can be increased.

[0073] Exemplarily, the spacing between adjacent cutting structures 130 for sampling in the first type of soil stratum is smaller than the spacing between adjacent cutting structures 130 for sampling in the second type of soil stratum. That is to say, when sampling hard soil, the cutting structure 130 is distributed more densely, and when sampling soft soil, the cutting structure 130 is distributed more sparsely.

[0074] By adjusting the distribution of the cutting structure 130, it is ensured that uniform soil samples can be obtained in soil strata with different hardnesses, avoiding errors caused by uneven sampling. In addition, this design enables the sampling device to adapt to soil strata with different hardnesses, improving the applicability of the device; moreover, adjusting the distribution of the cutting structure 130 according to the soil hardness enables the device to flexibly respond to different sampling requirements.

[0075] In some embodiments, the soil storage member 120 may be a full ring structure. In this way, the design of the full ring structure, on the one hand, reduces the time wasted due to assembly and disassembly during the sampling process, and improves the sampling efficiency; on the other hand, it can better maintain the integrity of the soil sample and avoid sample damage due to structural instability; on the other hand, the stable structural design allows the sampling device to be inserted deeper into the soil to achieve deeper sampling.

[0076] Alternatively, the soil collecting member 120 may include two half rings, which are spliced ​​into a whole ring. In this way, the design of the half ring structure makes the assembly and disassembly of the soil collecting member 120 easier and reduces the labor intensity of operators.

[0077] In this embodiment, refer to Figure 3 and Figure 6 As shown, the soil collection member 120 includes two half rings as an example. For example, the diameter of the two half rings after splicing is adapted to the inner diameter of the cutting tube. When working, it is placed in the cutting tube. After the soil sampling is completed, the two half rings are taken out of the cutting tube and separated to obtain a complete and intact soil columnar sample.

[0078] In this embodiment, a limiting protrusion 122 may be provided on one of the half rings, and a limiting groove 123 may be provided on the other half ring, and the limiting protrusion 122 is correspondingly inserted into the limiting groove 123. The cooperation between the limiting groove 123 and the limiting protrusion 122 can provide a stable structural support, and reduce the looseness of the structure caused by vibration or external force during the sampling process. Exemplarily, a pulling ring structure may be provided on the soil storage member 120 for pulling it out of the cutting barrel.

[0079] In some embodiments, reference Figure 8 As shown, the driving component 200 may include a rotating member 210, a supporting member 220 and a driving member 230; wherein the rotating member 210 is arranged at the driving end 250 of the supporting member 220, and the side of the supporting member 220 away from the driving end 250 is connected to the operating component 300, and the driving member 230 is located between the rotating member 210 and the supporting member 220 and is connected to the rotating member 210, and the rotating member 210 is connected to the sampling component 100; the driving member 230 is configured to drive the rotating member 210 to rotate, so that the rotating member 210 drives the sampling component 100 to rotate.

[0080] For example, the rotating member 210 may be a rotating main shaft.

[0081] In this way, the support member 220 provides stable support for the entire drive assembly 200, reducing structural looseness caused by vibration or external forces during the sampling process; the drive member 230 drives the sampling assembly 100 to rotate through the rotating member 210, capable of providing stable power output, ensuring 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 quickly perform sampling, reducing the sampling time, with high automation, saving manpower and material resources, and high sampling accuracy.

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

[0083] Exemplarily, the connection manner between the driving gear 231 and the support member 220 is not limited. For example, it can be installed by screws. In addition, the driven gear 232 and the rotating member 210 can also be connected by screws, which is not limited in this embodiment and can be specifically set according to actual needs.

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

[0085] In addition, by adjusting the number of teeth of the driving gear 231 and the driven gear 232, the transmission ratio can be changed, so as to adapt to soil conditions with different hardness and humidity. For example, a lower transmission ratio can be used in hard soil layers to increase torque, and a higher transmission ratio can be used in soft soil layers to increase the rotational speed. This design enables the sampling device to be flexibly adjusted according to different sampling requirements, improving the applicability of the device.

[0086] In addition, the design of gear transmission enables the operator to control the rotation of the sampling assembly 100 through simple operations, reducing operation complexity. Moreover, the automated design is beneficial to reducing manual intervention and improving the automation degree of the sampling process.

[0087] In some embodiments, referring to Figure 7As shown, the drive assembly 200 may further include a speed reducer and a drive motor 233. The drive motor 233 is disposed on the support member 220, the driving gear 231 is disposed on the drive motor 233, and the speed reducer is disposed between the driving gear 231 and the drive motor 233.

[0088] Among them, the use of the speed reducer, on the one hand, can accurately control the rotation speed and torque of the sampling assembly 100 to ensure the stability and efficiency of the sampling process. Moreover, the speed reducer can reduce the rotation speed of the drive motor 233, thereby reducing energy consumption and improving the energy efficiency of the entire device; on the other hand, it can ensure that the sampling assembly 100 rotates uniformly in the soil, reducing sampling errors caused by uneven rotation speed; on the third hand, the speed reducer can absorb the vibration and impact generated during the operation of the drive motor 233, protect the drive motor 233 from damage, and reduce the vibration during the sampling process. The buffering and shock-absorbing functions of the speed reducer can improve the reliability of the entire device and reduce failures.

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

[0090] Exemplarily, in this embodiment, referring to Figure 7 As shown, it may further include a rechargeable battery 240, such as a storage battery. The rechargeable battery 240 is installed on the support member 220 to provide power drive for the drive motor 233.

[0091] Exemplarily, in this embodiment, referring 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 main shaft 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] Exemplarily, the number of the quick-release mounting holes 150 may include a plurality. The quick-release mounting hole 150 is composed of a disassembly and assembly large hole and a strip hole, and is connected and matched with the quick-release disassembly and assembly pin at the end of the rotating main shaft to achieve quick disassembly and assembly.

[0093] Exemplarily, the lower support bearing 223 supports the lower part of the rotating main shaft. The driving gear 231 is installed on the speed reducer and the drive motor 233. The upper support bearing 221 supports the upper part of the rotating main shaft. The main body outer bracket 222, on the one hand, serves as the overall bracket of the device, and on the other hand, installs the speed reducer, the drive motor 233, the storage battery, etc. The driven gear 232 is fixedly installed on the rotating main shaft and meshes with the driving gear 231.

[0094] In some embodiments, referring to Figure 9As shown in the figure, the operation component 300 may include an operation connecting rod 310, a control switch 320, and an operation handle 330. The operation connecting rod 310 is connected to the driving component 200. The operation handle 330 is connected to the end of the operation connecting rod 310 that is away from the driving component 200. The control switch 320 is arranged on the operation handle 330.

[0095] Exemplarily, 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 at different positions, improving the convenience of operation.

[0096] The soil sampling device provided by the embodiment of the present application is conducive to discharging the excess part generated by cutting the soil during the sampling process from the annular gap on the side of the cutting cylinder while advancing the sampling, avoiding the extrusion of the end soil during soil cutting from damaging the basic physical parameters such as the compactness of the sampled soil, and at the same time making the sampling process more stable, reliable, convenient, and labor-saving.

[0097] The technical features of the above embodiments can be combined arbitrarily. For the sake of brevity of description, 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, it should be considered to be within the scope described in this specification.

[0098] The above embodiments only represent several implementation manners of the present application. The description is relatively specific and detailed, but it should not be construed as a limitation on the scope of the patent application. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present application, several deformations and improvements can be made, and these all belong to the protection scope of the present application. Therefore, the protection scope of the patent of the present application should be subject to the appended claims.

Claims

1. A soil sampling device, characterized in that: It comprises: a sampling component, a driving component and an operating component, wherein the sampling component is connected to the driving end of the driving component, and the operating component is connected to a side of the driving component away from the driving end; The sampling assembly includes a cutting piece and a soil receiving piece embedded in the cutting piece, the cutting piece has a cutting end away from the driving assembly, the soil receiving piece 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 arranged at circumferential intervals at the cutting end, each of the cutting structures having at least one guide structure, the guide structure being arranged obliquely relative to the central axis of the cutting structure, and being configured to guide the excised soil to be discharged through the annular gap on the side of the cutting piece when the cutting structure rotates.

2. The soil sampling device according to claim 1, characterized in that: The cutting structure has a first guide structure, wherein the cutting end is in the same direction along the circumference of the cutting end; The inclination directions of the plurality of first guide structures are the same; and / or the inclination angles of the plurality of first guide structures are the same.

3. The soil sampling device according to claim 1, characterized in that: The cutting structure comprises a first guiding structure and a second guiding structure. The first guiding structure and the second guiding structure are located at opposite sides of the central axis of the cutting structure and are inclined in different directions.

4. The soil sampling device according to claim 1, characterized in that: The number of the cut structures sampled in the first type of soil strata is greater than the number of the cut structures sampled in the second type of soil strata; Or, the spacing between adjacent cutting structures located in the first type of soil stratum for sampling is smaller than the spacing between adjacent cutting structures located in the second type of soil stratum for sampling; Wherein, the hardness of the first type of soil stratum is greater than the hardness of the second type of soil stratum.

5. The soil sampling device according to any one of claims 1 to 4, characterized in that: The soil storage member is a full ring structure; Alternatively, the soil storage member comprises two half rings, which are spliced ​​into a full ring, wherein a limiting protrusion is arranged on one of the half rings, and a limiting groove is arranged on the other half ring, and the limiting protrusion is correspondingly inserted into the limiting groove.

6. The soil sampling device according to any one of claims 1 to 4, characterized in that: 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, the driving member is located between the rotating member and the supporting member, and is 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 component to rotate.

7. The soil sampling device according to claim 6, characterized in that: The driving member comprises a driving tooth and a driven tooth, wherein the driving tooth is arranged on the supporting member, one end of the driven tooth is meshed with the driving tooth, and the other end of the driven tooth is connected to the rotating member; The driving teeth are configured to drive the driven teeth to rotate, so that the driven teeth drive the rotating member and the sampling component to rotate.

8. The soil sampling device according to claim 7, characterized in that: The driving assembly further comprises a speed reducer and a driving motor, wherein the driving motor is arranged on the supporting member, the driving tooth is arranged on the driving motor, and the speed reducer is arranged between the driving tooth and the driving motor.

9. The soil sampling device according to any one of claims 1 to 4, characterized in that: The operating assembly includes an operating connecting rod, a control switch and an operating handle. The operating connecting rod is connected to the driving assembly. The operating handle is connected to the end of the operating connecting rod away from the driving assembly. The control switch is arranged on the operating handle.

10. The soil sampling device according to any one of claims 1 to 4, characterized in that: The cutting member comprises a cutting barrel; and / or the cutting structure comprises cutting teeth; and / or the guiding structure comprises a chamfer.

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