Multi-shaft rotary soil body sampling device
Through the multi-axis rotary soil sampling device, soil sampling at different angles and depths is solved, the problem that traditional sampling methods are difficult to meet the accurate evaluation of soil mechanical characteristics, and accurate measurement of mechanical parameters such as soil shear strength is achieved, providing more accurate design data for civil engineering.
Patent Information
- Application Number
- CN202510235686.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-28
- Publication Date
- 2025-05-27
AI Technical Summary
The traditional fixed angle sampling method is difficult to meet the precise evaluation requirements of soil mechanical properties in different soil layer depths and directions, especially in the design of raft foundations of high-rise buildings, it is difficult to accurately determine the soil bearing capacity.
A multi-axis rotary soil sampling device is adopted, which includes a support base, a rotating power unit, a depth control unit and a multi-axis sampling drill bit. Through the coordinated control of the rotating motor and the control motor, the function of soil sampling at different angles and depths is realized.
By sampling at different angles and depths, soil samples from all directions can be obtained, shear strength in different directions can be accurately measured, helping to establish a more accurate soil constitutive model, and providing reliable mechanical parameters for basic design, slope reinforcement, etc. in civil engineering.
Smart Images
Figure CN120043804A_ABST
Abstract
Description
Technical Field
[0001] The present invention belongs to the technical field of civil engineering, and particularly relates to a multi-axis rotary soil sampling device. Background Art
[0002] Civil engineering is a general term for the science and technology of constructing various engineering facilities. It refers to both the technical activities such as surveying, designing, constructing, maintaining, and repairing using the applied materials and equipment, and the objects of engineering construction, that is, various engineering facilities built on the ground or underground, on land or in water, directly or indirectly serving human life, production, military, and scientific research, such as houses, roads, railways, pipelines, tunnels, bridges, canals, dams, ports, power stations, airports, offshore platforms, water supply and drainage, and protective projects, etc. Civil engineering refers to the various technical works such as surveying, planning, designing, constructing, installing, and maintaining for the construction, reconstruction, or expansion of buildings, structures, and related supporting facilities of various projects except for building construction, and the completed engineering entities.
[0003] In the basic design and construction of civil engineering, it is necessary to understand in detail the mechanical properties of soil such as bearing capacity, compressibility, and shear strength. For the raft foundation of high-rise buildings, accurate soil bearing capacity data can determine the size and thickness of the raft and avoid excessive settlement of the building due to insufficient bearing capacity. These mechanical properties may vary at different soil depths and directions, and the traditional fixed-angle sampling method is difficult to meet the requirements of accurate evaluation. Summary of the Invention
[0004] An embodiment of the present invention provides a multi-axis rotary soil sampling device to solve the problems in the prior art.
[0005] The embodiment of the present invention adopts the following technical solution: A multi-axis rotary soil sampling device includes a support base, a rotary power unit is provided on the support base, the rotary power unit is rotatably connected to the support base, a depth control unit is provided on the rotary power unit, a multi-axis sampling drill bit is provided on the depth control unit, and the depth control unit can drive the position of the multi-axis sampling drill bit to move downward to sample the soil; an auxiliary support unit for supporting the support base is provided on the support base.
[0006] Further technical solution, the rotary power unit includes a rotary motor, a rotary disk, a rotary frame body, and a rotary shaft. The rotary motor is located on the support base, the rotary disk is connected to the main shaft of the rotary motor, the rotary shaft is located on the rotary disk, the rotary frame body is rotatably connected to the support base, a chute is provided on the rotary frame body, and the rotary shaft slides in the chute.
[0007] Further technical solution: The depth control unit includes a mounting frame, a control motor, an adjustment lead screw, an adjustment block, a mounting block, and two slide bars. The mounting frame is connected to the rotating frame body. The control motor is located at the top of the mounting frame. The adjustment lead screw is rotatably connected to the mounting frame, and the top of the adjustment lead screw is drivingly connected to the control motor. The two slide bars are symmetrically arranged at both ends of the adjustment lead screw. The adjustment block is threadedly connected to the adjustment lead screw, and the adjustment block is slidably engaged with the two slide bars. The mounting frame is provided with two moving grooves, and the adjustment block is provided with two moving blocks. The moving blocks are slidably engaged with the moving grooves. The mounting block is connected to the two moving blocks.
[0008] Further technical solution: The multi-axis sampling drill bit includes three rotation drilling members arranged at equal intervals. The rotation drilling members are arranged on the mounting block and are vertically arranged.
[0009] Further technical solution: Each rotation drilling member includes a mounting sleeve block, a drilling motor, a mounting sleeve, and a sampling tube. The mounting sleeve block is located on the mounting block. The mounting sleeve is vertically arranged on the mounting sleeve block. The drilling motor is located at the top of the mounting sleeve. The sampling tube is connected to the main shaft of the drilling motor, and the sampling tube rotates within the mounting sleeve.
[0010] Further technical solution: The bottom of the sampling tube is provided with an inclined pointed head.
[0011] Further technical solution: There are two auxiliary support units. The two auxiliary support units are symmetrically arranged on the support base. Each auxiliary support unit includes a rotating block, a support tube, an insertion connecting tube, and a pin. The support base is provided with a mounting groove. The rotating block is provided with a rotating shaft, and the rotating block is rotatably connected to the mounting groove through the rotating shaft. The support tube is located at the bottom of the rotating block. The insertion connecting tube is slidably connected within the support tube. The insertion connecting tube is provided with a number of equally spaced insertion holes. The pin is slidably connected to the support base tube and is inserted into the corresponding insertion holes on the insertion connecting tube. The bottom of the insertion connecting tube is provided with an insertion pointed head.
[0012] Further technical solution: It further includes a soil sample collection bin and a data processing terminal.
[0013] The above at least one technical solution adopted in the embodiments of the present invention can achieve the following beneficial effects:
[0014] First, during the process of sampling soil masses at different angles in the present invention, the rotation motor operates to drive the rotation disk to rotate, thereby driving the rotation shaft to rotate within the sliding groove, and further driving the rotation frame to swing and rotate on the support base. After the sampling angle is determined, the rotation motor stops rotating. By operating the rotation motor, sampling work can be achieved at different angles. By sampling at different angles, soil samples in various directions can be obtained, thereby accurately measuring the shear strength in different directions. This helps to establish a more accurate soil constitutive model and provide reliable mechanical parameters for foundation design, slope reinforcement, etc. in civil engineering; the physical properties of soil masses such as porosity and permeability also vary with direction. Taking permeability as an example, the permeability in the vertical direction may be affected by the arrangement and compaction degree of soil particles, while the permeability in the horizontal direction may also be affected by factors such as gaps between soil layers. Sampling from different angles can analyze these differences, which is very important for the waterproofing and drainage design of underground structures (such as tunnels, basements, etc.); in some areas with complex geological conditions, the soil layers may be inclined, folded, or have lenticular structures. Sampling from different angles can better understand the soil mass distribution of these complex geological structures. For example, at a construction site with inclined rock and soil layers, by oblique sampling, the contact relationship between the rock and soil layers and the surrounding soil masses can be obtained, accurately determining the inclination angle and range of the rock and soil layers, providing a basis for pile foundation design, and ensuring that the pile foundation can effectively penetrate complex strata and reach a suitable bearing layer.
[0015] Second, in the present invention, the control motor operates to drive the adjustment lead screw to rotate within the installation frame, thereby driving the adjustment block to move downward on the two slide bars. When the position of the adjustment block moves downward, it will drive the two moving blocks to move downward in the two moving grooves respectively, thereby driving the position of the installation block to move downward. When the position of the installation block moves downward, it will drive the position of the multi-axis sampling drill bit to move downward. During the process of sampling the soil mass, sampling work can be carried out on soil masses at different depths. By sampling soil masses at different depths, a vertical profile of the physical properties of the soil mass can be constructed, clearly showing the variation law of these physical properties at different depths, thereby providing detailed basic data for foundation treatment, underground structure waterproofing, etc. in civil engineering; by sampling and analyzing soil masses at different depths, the vertical distribution of the chemical properties of the soil mass can be understood, providing a basis for evaluating soil fertility, predicting the spread of soil pollution, etc.; by sampling and testing soil masses at different depths, the variation curve of these mechanical parameters can be accurately obtained, providing accurate data support for foundation design, slope stability analysis, etc. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] The drawings described herein are used to provide a further understanding of the present invention and form a part of the present invention. The schematic embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation to the present invention. In the drawings:
[0017] Figure 1 is the first three-dimensional structure diagram of the present invention;
[0018] Figure 2 is the second three-dimensional structure diagram of the present invention;
[0019] Figure 3 is the three-dimensional structure diagram of the rotation power unit in the present invention;
[0020] Figure 4 is the three-dimensional structure diagram of the depth control unit in the present invention;
[0021] Figure 5 is the three-dimensional structure diagram of the rotary drilling part in the present invention;
[0022] Figure 6 is the three-dimensional structure diagram of the auxiliary support unit in the present invention;
[0023] Figure 7 is the exploded three-dimensional structure diagram of the auxiliary support unit in the present invention;
[0024] Reference numerals:
[0025] Support base 1, mounting groove 11, rotation power unit 2, rotation motor 21, rotating disc 22, rotating frame 23, rotating shaft 24, sliding groove 25, depth control unit 3, mounting frame 31, control motor 32, adjusting screw 33, adjusting block 34, mounting block 35, sliding rod 36, moving groove 37, moving block 38, multi-axis sampling drill bit 4, rotary drilling part 40, mounting sleeve block 41, drilling motor 42, mounting sleeve 43, sampling tube 44, auxiliary support unit 5, rotating block 51, support tube 52, insertion connecting tube 53, insertion pin 54, insertion hole 55, insertion pointed head 56. Detailed implementation manners
[0026] To make the objectives, technical solutions and advantages of the present invention clearer, the technical solutions of the present invention will be clearly and completely described below in conjunction with specific embodiments of the present invention and the corresponding drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without making creative efforts fall within the scope of protection of the present invention.
[0027] The following will, in conjunction with the drawings, detail the technical solutions provided by each embodiment of the present invention for a multi-axis rotary soil sampling device.
[0028] Refer to Figures 1 to 7As shown in the figure, an embodiment of the present invention provides a multi-axis rotary soil sampling device, including a support base 1, a rotary power unit 2 is provided on the support base 1, the rotary power unit 2 is rotatably connected to the support base 1, a depth control unit 3 is provided on the rotary power unit 2, a multi-axis sampling drill bit 4 is provided on the depth control unit 3, and the depth control unit 3 can drive the position of the multi-axis sampling drill bit 4 to move downward to sample the soil; an auxiliary support unit 5 for supporting the support base 1 is provided on the support base 1.
[0029] In the process of using the present invention, it can be used for soil sampling at different depths and angles to ensure the integrity and representativeness of the samples.
[0030] In this embodiment, the rotary power unit 2 includes a rotary motor 21, a rotary disk 22, a rotary frame 23 and a rotary shaft 24. The rotary motor 21 is located on the support base 1, the rotary disk 22 is connected to the main shaft of the rotary motor 21, the rotary shaft 24 is located on the rotary disk 22, the rotary frame 23 is rotatably connected to the support base 1, a chute 25 is provided on the rotary frame 23, and the rotary shaft 24 slides in the chute 25.
[0031] In the process of sampling soil at different angles, first, the rotary motor 21 works to drive the rotary disk 22 to rotate, thereby driving the rotary shaft 24 to rotate in the chute 25, thereby driving the rotary frame 23 to swing and rotate on the support base 1. After the sampling angle is determined, the rotary motor 21 stops rotating. By operating the rotary motor 21, sampling work can be carried out at different angles. By sampling at different angles, soil samples in various directions can be obtained, so as to accurately measure the shear strength in different directions. This helps to establish a more accurate soil constitutive model and provide reliable mechanical parameters for foundation design, slope reinforcement, etc. in civil engineering; the physical properties such as porosity and permeability of the soil also vary with direction. Taking permeability as an example, the vertical permeability may be affected by the arrangement and compaction degree of soil particles, while the horizontal permeability may also be affected by factors such as gaps between soil layers. Sampling from different angles can analyze these differences, which is very important for the waterproof and drainage design of underground structures such as tunnels and basements; in some areas with complex geological conditions, the soil layers may be inclined, folded or have lenticular structures. Sampling from different angles can better understand the soil distribution of these complex geological structures. For example, in a building site with inclined rock and soil layers, by oblique sampling, the contact relationship between the rock and soil layers and the surrounding soil can be obtained, the inclination angle and range of the rock and soil layers can be accurately judged, and it provides a basis for pile foundation design to ensure that the pile foundation can effectively penetrate complex strata and reach a suitable bearing layer.
[0032] In this embodiment, the depth control unit 3 includes an installation frame 31, a control motor 32, an adjustment lead screw 33, an adjustment block 34, an installation block 35, and two slide bars 36. The installation frame 31 is connected to the rotating frame body 23. The control motor 32 is located at the top of the installation frame 31. The adjustment lead screw 33 is rotatably connected to the installation frame 31, and the top of the adjustment lead screw 33 is drivingly connected to the control motor 32. The two slide bars 36 are symmetrically arranged at both ends of the adjustment lead screw 33. The adjustment block 34 is threadedly connected to the adjustment lead screw 33, and the adjustment block 34 is slidably engaged with the two slide bars 36. Two moving grooves 37 are provided on the installation frame 31, and two moving blocks 38 are provided on the adjustment block 34. The moving blocks 38 are slidably engaged with the moving grooves 37. The installation block 35 is connected to the two moving blocks 38.
[0033] When sampling, it is necessary to sample the soil at different depth positions. At this time, the control motor 32 works to drive the adjustment lead screw 33 to rotate within the installation frame 31, thereby driving the adjustment block 34 to move downward on the two slide bars 36. The downward movement of the position of the adjustment block 34 will drive the two moving blocks 38 to move downward in the two moving grooves 37 respectively, thereby driving the position of the installation block 35 to move downward. The downward movement of the position of the installation block 35 will drive the position of the multi-axis sampling drill bit 4 to move downward. During the process of sampling the soil, the soil at different depths can be sampled. By sampling the soil at different depths, a vertical profile of the physical properties of the soil can be constructed, clearly showing the variation laws of these physical properties at different depths, thereby providing detailed basic data for foundation treatment, underground structure waterproofing, etc. in civil engineering; by sampling and analyzing the soil at different depths, the vertical distribution of the chemical properties of the soil can be understood, providing a basis for evaluating soil fertility, predicting the spread of soil pollution, etc.; by sampling and testing the soil at different depths, the variation curves of these mechanical parameters can be accurately obtained, providing accurate data support for foundation design, slope stability analysis, etc.
[0034] In this embodiment, the multi-axis sampling drill bit 4 includes three rotation drilling members 40 arranged at equal intervals. The rotation drilling members 40 are arranged on the installation block 35 and are vertically arranged.
[0035] In this embodiment, each rotation drilling member 40 includes an installation sleeve block 41, a drilling motor 42, an installation sleeve 43, and a sampling tube 44. The installation sleeve block 41 is located on the installation block 35. The installation sleeve 43 is vertically arranged on the installation sleeve block 41. The drilling motor 42 is located at the top of the installation sleeve 43. The sampling tube 44 is connected to the main shaft of the drilling motor 42, and the sampling tube 44 rotates within the installation sleeve 43.
[0036] When sampling, the drilling motor 42 operates to drive the sampling pipe 44 to rotate within the installation sleeve 43. When the sampling pipe 44 rotates downward, it will perform rotary sampling on the specified position; sampling can perform soil sampling in multiple directions in sequence, achieving three-dimensional spatial sampling of the soil. It can not only vertically sample downward to obtain information on soil layers at different depths, but also sample from the horizontal or inclined directions, completely depicting the characteristic distribution of the soil in three-dimensional space, including soil composition and mechanical properties in different directions, etc.; multi-axis rotary sampling can obtain samples at more angles and positions in a shorter time. For example, in a large-scale civil engineering investigation project, it can arrange multiple sampling axes around a sampling point at one time and collect soil in multiple directions simultaneously, greatly reducing the number of movements and repositionings of the sampling points, thereby improving the overall sampling efficiency.
[0037] Multi-axis rotary sampling can obtain soil samples in different directions, so as to accurately analyze mechanical parameters such as shear strength, compressive strength, and elastic modulus of the soil in each direction. Taking the design of building foundations as an example, accurately understanding the bearing capacity of the soil around the foundation in different directions can provide more accurate data support for the design of the foundation structure and ensure the stability of the building.
[0038] Sampling in a single direction or a small number of directions may lead to sample deviation due to differences in local soil characteristics. Multi-axis rotary sampling can effectively avoid this situation by collecting samples from multiple directions, making the obtained samples more representative of the true characteristics of the entire soil.
[0039] In this embodiment, the bottom of the sampling pipe 44 is provided with an inclined pointed head; so that the sampling pipe 44 can smoothly move into the soil for sampling work.
[0040] In this embodiment, there are two auxiliary support units 5, and the two auxiliary support units 5 are symmetrically arranged on the support base 1. Each auxiliary support unit 5 includes a rotating block 51, a support pipe 52, an insertion pipe 53, and a pin 54. The support base 1 is provided with an installation groove 11. The rotating block 51 is provided with a rotating shaft, and the rotating block 51 is rotatably connected in the installation groove 11 through the rotating shaft. The support pipe 52 is located at the bottom of the rotating block 51. The insertion pipe 53 is slidably connected in the support pipe 52. The insertion pipe 53 is provided with a number of equally spaced insertion holes 55. The pin 54 is slidably connected to the support base 1 pipe and inserted into the corresponding insertion holes 55 on the insertion pipe 53. The bottom of the insertion pipe 53 is provided with an insertion pointed head 56.
[0041] During the sampling process, the support tube 52 is rotated outwards from the installation groove 11 through the rotation of the rotating block 51 and the rotating shaft. Then, the pin 54 is pulled outwards, and the insertion connecting tube 53 is pulled outwards from the support tube 52, so that the insertion connecting tube 53 is inserted into the soil body through the insertion tip 56. Then, the pin 54 is inserted into the support tube 52 and the corresponding jack 55, thereby realizing the fixation of the insertion connecting tube 53 and the support tube 52. After the insertion connecting tube 53 is inserted into the soil body, the support of the support base 1 can be realized, preventing the position of the support base 1 from moving due to shaking or jumping during the sampling process, resulting in inaccurate soil sampling data and affecting the subsequent data analysis.
[0042] In this embodiment, it further includes a soil sample collection bin and a data processing terminal; the soil sample collection bin collects and stores the collected soil body, and the data processing terminal processes and analyzes the collected soil body data.
[0043] The soil sample collection bin is an important part of the multi-axis rotary soil sampling device of the present invention, and its design aims to ensure the integrity and traceability of the collected soil samples. The soil sample collection bin is made of materials with good sealing performance to prevent the pollution of the samples by the external environment. There are multiple independent sample storage compartments in the bin, and each storage compartment is marked with a clear number to facilitate the distinction of soil samples collected at different depths and different angles.
[0044] The opening and closing of the soil sample collection bin adopt a convenient locking mechanism to ensure the rapid and safe storage of samples during the sampling process. In addition, the soil sample collection bin is also equipped with a temperature and humidity control system to simulate the original temperature and humidity environment of the soil body, ensuring that the physical and chemical properties of the samples do not change significantly during storage.
[0045] To facilitate subsequent laboratory analysis, the soil sample collection bin is also provided with a data label area for recording key information such as the collection time, depth, and angle of each sample. This information will be uniformly managed and analyzed by the data processing terminal.
[0046] The data processing terminal is the intelligent core of the multi-axis rotary soil sampling device of the present invention, responsible for real-time processing and analysis of the collected soil body data. The data processing terminal adopts a high-performance processor and advanced analysis software, and can quickly and accurately process a large amount of data.
[0047] The data processing terminal is connected to components such as the multi-axis sampling drill bit 4 and the depth control unit 3 through wireless or wired means, and real-time receives data such as depth, angle, and drilling resistance during the sampling process. At the same time, the terminal is also equipped with a high-precision sensor interface, which can access various soil property testing instruments, such as porosity testers, permeability testers, etc., to obtain more comprehensive soil body data.
[0048] In terms of data processing, the terminal adopts advanced algorithms and models to perform statistical analysis, visual display, and report generation on the data. Users can view the sampling progress, sample data, and analysis results in real time through the terminal's display screen or remotely connected computer. In addition, the data processing terminal also supports the data export function, facilitating users to transfer the data to other analysis software or laboratories for further research.
[0049] Through the design of the soil sample collection bin and the data processing terminal, the multi-axis rotary soil sampling device of the present invention can not only complete the soil sampling work efficiently and accurately, but also achieve refined management of samples, comprehensive data analysis, and intelligent report generation, providing more reliable, convenient, and efficient technical support for the civil engineering field.
[0050] At the beginning of the sampling process, first, the rotary power unit 2 on the support base 1 drives the multi-axis sampling drill bit 4 to rotate, and at the same time, the depth control unit 3 controls the position of the multi-axis sampling drill bit 4 to move downward to drill and sample the soil. During the sampling process, the rotation and downward movement of the multi-axis sampling drill bit 4 are jointly controlled by the rotary power unit 2 and the depth control unit 3 to ensure the accuracy and efficiency of sampling. After sampling is completed, the depth control unit 3 raises the multi-axis sampling drill bit 4 to the initial position. At this time, the soil sample collection bin collects and stores the collected soil to ensure the integrity and traceability of the sample. At the same time, the data processing terminal processes and analyzes the collected soil data, including recording data such as the depth, angle, physical properties, and chemical properties of the sample, and performing statistical analysis to provide detailed basic data and reports for civil engineering. If sampling is required at different depths or angles, the above steps can be repeated. By the cooperation of the rotary power unit 2 and the depth control unit 3, the position and angle of the multi-axis sampling drill bit 4 are adjusted until all preset sampling points are completed. During the entire sampling process, the auxiliary support unit on the support base 1 provides stable support to ensure the stability and safety of the device. Through this coherent process, the multi-axis rotary soil sampling device of the present invention can efficiently and accurately complete the soil sampling work, and through the soil sample collection bin and the data processing terminal, it realizes the collection, storage, processing, and analysis of samples, providing important data support for civil engineering.
[0051] The above are only the embodiments of the present invention and are not used to limit the present invention. For those skilled in the art, various changes and modifications can be made to the present invention. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included within the scope of the claims of the present invention.
Claims
1. A multi-axis rotary soil sampling device, characterized in that: The invention comprises a support base (1), wherein a rotating power unit (2) is provided on the support base (1), and the rotating power unit (2) is rotatably connected to the support base (1). The rotary power unit (2) is provided with a depth control unit (3), and the depth control unit (3) is provided with a multi-axis sampling drill bit (4). The depth control unit (3) can drive the multi-axis sampling drill bit (4) to move downward to sample the soil; The support seat (1) is provided with an auxiliary support unit (5) for supporting the support seat (1).
2. A multi-axis rotary soil sampling device according to claim 1, characterized in that: The rotary power unit (2) comprises a rotary motor (21), a rotary disk (22), a rotary frame (23) and a rotary shaft (24). The rotating motor (21) is located on the support seat (1), and the rotating disk (22) is connected to the main shaft of the rotating motor (21). The rotating shaft (24) is located on the rotating disk (22), and the rotating frame (23) is rotatably connected to the supporting seat (1). The rotating frame (23) is provided with a slide groove (25), and the rotating shaft (24) slides in the slide groove (25).
3. A multi-axis rotary soil sampling device according to claim 2, characterized in that: The depth control unit (3) comprises a mounting frame (31), a control motor (32), an adjustment screw rod (33), an adjustment block (34), a mounting block (35) and two slide bars (36). The mounting frame (31) is connected to the rotating frame (23), and the control motor (32) is located on the top of the mounting frame (31). The adjusting screw rod (33) is rotatably connected to the mounting frame (31) and the top of the adjusting screw rod (33) is transmission-connected to the control motor (32). The two slide bars (36) are symmetrically arranged at the two ends of the adjusting screw rod (33). The adjusting block (34) is threadedly connected to the adjusting screw rod (33), and the adjusting block (34) is slidably matched with the two sliding rods (36). The mounting frame (31) is provided with two movable grooves (37), the adjustment block (34) is provided with two movable blocks (38), and the movable blocks (38) are slidably matched with the movable grooves (37). The mounting block (35) is connected to two moving blocks (38).
4. A multi-axis rotary soil sampling device according to claim 3, characterized in that: The multi-axis sampling drill bit (4) comprises three rotating drilling members (40) arranged at equal intervals. The rotating drilling members (40) are arranged on a mounting block (35) and are arranged vertically.
5. The multi-axis rotary soil sampling device according to claim 4, characterized in that: Each of the rotary drilling members (40) comprises a mounting sleeve (41), a drilling motor (42), a mounting sleeve (43) and a sampling tube (44). The mounting block (41) is located on the mounting block (35), and the mounting sleeve (43) is vertically arranged on the mounting block (41). The drilling motor (42) is located at the top of the mounting sleeve (43), the sampling tube (44) is connected to the main shaft of the drilling motor (42), and the sampling tube (44) rotates in the mounting sleeve (43).
6. A multi-axis rotary soil sampling device according to claim 5, characterized in that: The bottom of the sampling tube (44) is arranged with an inclined tip.
7. The multi-axis rotary soil sampling device according to claim 1, characterized in that: The auxiliary support units (5) are provided with two, and the two auxiliary support units (5) are symmetrically arranged on the support base (1). Each of the auxiliary support units (5) comprises a rotating block (51), a support tube (52), a plug-in tube (53) and a plug pin (54). The support seat (1) is provided with a mounting groove (11), the rotating block (51) is provided with a rotating shaft, and the rotating block (51) is rotatably connected in the mounting groove (11) via the rotating shaft. The support tube (52) is located at the bottom of the rotating block (51), the plug tube (53) is slidably connected in the support tube (52), and the plug tube (53) is provided with a plurality of equidistantly arranged plug holes (55). The plug pin (54) is slidably connected to the support seat (1) tube and plugged into a corresponding plug hole (55) on the plug tube (53). The bottom of the plug tube (53) is provided with a plug tip (56).
8. The multi-axis rotary soil sampling device according to claim 1, characterized in that: It also includes a soil sample collection bin and a data processing terminal.