Soil collection device for facilitating microbiological analysis

By combining a fixed platform, a mobile platform, a multi-degree-of-freedom robotic arm, and a detachable soil sampling component, the problems of sampling efficiency, accuracy, and contamination in existing soil sampling devices have been solved, achieving efficient and accurate collection of microbial samples.

CN224681833UActive Publication Date: 2026-08-25HUNAN NUCLEAR AGRICULTURE & TRADITIONAL CHINESE MEDICINE RESEARCH INSTITUTE
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Patent Information

Application Number
CN202521528149.7
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-07-22
Publication Date
2026-08-25
Estimated Expiration
2035-07-22

AI Technical Summary

Technical Problem

Existing soil sampling devices are inadequate in terms of sampling efficiency, accuracy, environmental adaptability, and microbial sample contamination, making it difficult to meet the needs of microbial analysis.

Method used

The system employs a combination design of a fixed platform, a mobile platform, a multi-degree-of-freedom robotic arm, and a detachable soil sampling component. Combined with a planar moving component and telescopic outriggers, it achieves automated positioning, precise sampling, and reduced sample contamination.

Benefits of technology

It improves sampling efficiency and accuracy, reduces manual labor intensity, ensures consistency in sampling depth and quantity, reduces external pollution, protects the survival status of microorganisms, and adapts to different terrains.

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Abstract

The utility model discloses soil collection device convenient to microorganism analysis, include: fixed platform, the bottom of fixed platform is installed with fixed support leg, movable platform, movable platform sliding connection is in fixed platform, and the telescopic support leg is installed on movable platform, plane movement subassembly, plane movement subassembly includes fixed seat, X -axis movement subassembly and Y -axis movement subassembly, and X -axis movement subassembly and Y -axis movement subassembly are arranged in perpendicular state between fixed seat and fixed on movable platform top surface, and X -axis movement subassembly and Y -axis movement subassembly are transmission cooperation between fixed seat and fixed platform, are used for controlling movable platform and move on plane, multi -freedom degree mechanical arm, two groups are provided to multi -freedom degree mechanical arm, and two groups multi -freedom degree mechanical arm symmetrical installation are in movable platform bottom both sides, take out soil subassembly, take out soil subassembly includes power component and take out soil bucket, and take out soil bucket detachable connection is in power component's output end. The whole sampling process in the application, and mechanical operation reduces the damage to the original structure of soil.
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Description

Technical Field

[0001] This utility model relates to the field of soil sampling technology, and in particular to a soil sampling device that facilitates microbial analysis. Background Technology

[0002] In fields such as soil research, agricultural production, and environmental monitoring, collecting soil samples for microbial analysis is a crucial task. Analyzing soil microorganisms provides important information about soil fertility and changes in the ecological environment. Currently, soil collection mainly relies on manual operation or traditional mechanical equipment.

[0003] Manual collection is not only labor-intensive and inefficient, but also prone to inconsistencies in sampling depth and volume due to the inherent instability of human operation. Furthermore, soil samples are easily contaminated by external factors during manual collection, such as impurities carried by collection tools or contact with the operator's hands, all of which can interfere with the accuracy of microbiological analysis results.

[0004] Existing mechanical sampling devices also have several shortcomings in practical applications. In terms of mobility, they lack flexibility, making it difficult to accurately reach designated sampling locations, and they are ill-suited for areas with complex terrain. Regarding sampling depth control, their precision is insufficient, failing to allow for flexible and precise adjustments based on different soil types (such as clay and sand) and specific sampling requirements. Furthermore, the soil-collecting components of some mechanical sampling devices are poorly designed, easily damaging the original soil structure during collection, disturbing the soil microbial community, affecting the survival of microorganisms, and hindering subsequent microbial analysis.

[0005] Therefore, developing a soil sampling device that can improve sampling efficiency, ensure sampling accuracy, reduce sample contamination, and adapt to different sampling environments for easy microbial analysis has become an urgent problem to be solved in the field of soil sampling technology. Utility Model Content

[0006] The purpose of this invention is to provide a soil sampling device that facilitates microbial analysis, thereby addressing the problems existing in the prior art.

[0007] To achieve the above objectives, this utility model provides the following solution: This utility model provides a soil collection device that facilitates microbial analysis, comprising:

[0008] A fixed platform, the bottom of which is equipped with fixed support legs;

[0009] A mobile platform, which is slidably connected to the fixed platform, and telescopic outriggers are installed on the mobile platform;

[0010] A planar moving assembly includes a fixed base, an X-axis moving assembly, and a Y-axis moving assembly. The X-axis moving assembly and the Y-axis moving assembly are arranged vertically on the fixed platform. The fixed base is fixed to the top surface of the moving platform. The X-axis moving assembly and the Y-axis moving assembly are driven by the fixed platform to control the movement of the moving platform on a plane.

[0011] A multi-degree-of-freedom robotic arm, wherein two sets of the multi-degree-of-freedom robotic arms are provided, and the two sets of multi-degree-of-freedom robotic arms are symmetrically installed on both sides of the bottom of the mobile platform;

[0012] A soil sampling assembly, comprising a power unit and a soil sampling bucket, wherein the soil sampling bucket is detachably connected to the output end of the power unit.

[0013] According to the soil collection device for facilitating microbial analysis provided by this utility model, the telescopic support leg includes a sleeve, the sleeve is fixedly connected to the four corners of the moving platform, a sliding rod is slidably connected inside the sleeve, a base is fixedly connected to the bottom of the sliding rod, a rack is fixedly connected to the top of the sliding rod, an adjusting motor is fixedly fixed to the top surface of the moving platform, and a gear is fixedly connected to the output shaft of the adjusting motor, the gear meshing with the rack.

[0014] According to the soil collection device for facilitating microbial analysis provided by this utility model, the X-axis moving component includes:

[0015] An X-axis motor, which is fixed on the fixed platform;

[0016] The first lead screw is horizontally rotatably connected to the fixed platform, and one end is shaft-connected to the X-axis motor.

[0017] A first push rod passes through the fixed base, and sliders are fixed at both ends of the first push rod. One of the sliders is threadedly connected to the first lead screw. A horizontal shaft is fixedly connected to the fixed base, and the other slider is slidably connected to the horizontal shaft.

[0018] According to the soil collection device for facilitating microbial analysis provided by this utility model, the Y-axis moving component includes:

[0019] A Y-axis motor, which is fixed on the fixed platform;

[0020] The second lead screw is rotatably connected to the fixed platform and is arranged perpendicularly to the first lead screw. One end of the second lead screw is connected to the Y-axis motor shaft.

[0021] The second push rod passes through the fixed base, and the two ends of the second push rod are respectively fixed with the sliders. One of the sliders is threadedly connected to the second lead screw. A vertical shaft is fixedly connected to the fixed base, and the other slider is slidably connected to the vertical shaft.

[0022] According to the soil sampling device for easy microbial analysis provided by this utility model, the power component is a hydraulic push rod, which is fixed to the end of the multi-degree-of-freedom robotic arm. A threaded rod is fixedly connected to the end of the hydraulic push rod. A through hole is opened at the center of the soil sampling bucket, and the threaded rod passes through the through hole. A push plate is slidably connected inside the soil sampling bucket, and a nut is fixedly connected to the top surface of the push plate. The threaded rod is threadedly connected to the push rod and the nut. A positioning plate is fixed on the threaded rod, and the positioning plate abuts against the top surface of the soil sampling bucket.

[0023] According to the soil collection device for easy microbial analysis provided by this utility model, the top surface of the soil collection bucket is provided with an exhaust hole.

[0024] The present invention discloses the following technical effects:

[0025] Compared to manual collection, the automatic positioning of the planar moving components and the automated operation of the robotic arm significantly reduce the intensity of manual labor and improve the efficiency of soil collection, enabling the rapid completion of collection work at multiple sampling points.

[0026] The planar motion component can precisely control the position of the moving platform. Combined with the multi-degree-of-freedom robotic arm, it can accurately control the soil sampling angle and depth, ensuring the consistency of sampling depth and sampling volume at each sampling point and avoiding errors caused by the instability of manual operation.

[0027] The detachable design of the soil collection bucket allows soil samples to be transferred directly after collection, reducing the contact between the sample and the outside environment, lowering the risk of contamination from external impurities, and ensuring the accuracy of microbiological analysis results.

[0028] The sliding connection of the mobile stage and the telescopic outriggers allow the device to adapt to different sampling environments; the multi-degree-of-freedom robotic arm can flexibly adjust the sampling angle to meet the sampling needs in complex terrains.

[0029] Throughout the sampling process of this invention, mechanical operation reduces damage to the original soil structure and minimizes disturbance to the soil microbial community, which helps maintain the survival of microorganisms and provides high-quality samples for subsequent microbial analysis. Attached Figure Description

[0030] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0031] Figure 1 The isometric view of the soil sampling device for easy microbial analysis according to this utility model. Figure I ;

[0032] Figure 2 The isometric view of the soil sampling device for easy microbial analysis according to this utility model. Figure II ;

[0033] Figure 3 This is a schematic diagram of the soil sampling component of this utility model.

[0034] The components include: 1. Fixed platform; 2. Fixed support leg; 3. Moving platform; 4. Fixed base; 5. Multi-degree-of-freedom robotic arm; 6. Sleeve; 7. Sliding rod; 8. Base; 9. Rack; 10. Adjusting motor; 11. Gear; 12. First lead screw; 13. First push rod; 14. Second lead screw; 15. Second push rod; 16. Hydraulic push rod; 17. Nut; 18. Push plate; 19. Soil bucket; 20. Positioning plate; 21. Slider. Detailed Implementation

[0035] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0036] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0037] Reference Figures 1-3 This utility model provides a soil sampling device for easy microbial analysis, comprising:

[0038] Fixed platform 1, with fixed support legs 2 installed at the bottom of fixed platform 1;

[0039] The mobile platform 3 is slidably connected to the fixed platform 1, and telescopic support legs are installed on the mobile platform 3.

[0040] The planar moving assembly includes a fixed base 4, an X-axis moving assembly, and a Y-axis moving assembly. The X-axis moving assembly and the Y-axis moving assembly are arranged vertically on the fixed platform 1. The fixed base 4 is fixed to the top surface of the moving platform 3. The X-axis moving assembly and the Y-axis moving assembly are driven by the fixed platform 1 to control the movement of the moving platform 3 on the plane.

[0041] The multi-degree-of-freedom robotic arm 5 is provided in two sets, and the two sets of multi-degree-of-freedom robotic arms 5 are symmetrically installed on both sides of the bottom of the moving platform 3.

[0042] The soil sampling assembly includes a power unit and a soil sampling bucket 19, which is detachably connected to the output end of the power unit.

[0043] Place the fixed platform 1 in the sampling area and stabilize the entire device using the fixed support legs 2. Adjust the telescopic support legs on the moving platform 3 according to the terrain of the sampling location to ensure that the moving platform 3 is in a horizontal and stable state. Activate the planar movement component, where the X-axis and Y-axis movement components work together to drive the moving platform 3 to move precisely within the plane on the fixed platform 1, aligning the multi-degree-of-freedom robotic arm 5 at the bottom of the moving platform 3 with the preset sampling point. Utilize the flexibility of the two symmetrically installed multi-degree-of-freedom robotic arms 5 to adjust the angle and position of the soil sampling component to align it with the sampling point. Activate the power component in the soil sampling component to drive the soil sampling bucket 19 deep into the soil to complete the soil sampling operation. After soil sampling is completed, use the multi-degree-of-freedom robotic arm 5 to remove the soil sampling bucket 19 from the soil. Since the soil sampling bucket 19 is detachably connected to the power component, it can be directly removed to obtain soil samples for subsequent microbial analysis.

[0044] Further optimization of the design: the telescopic outrigger includes a sleeve 6, which is fixedly connected to the four corners of the moving platform 3. A sliding rod 7 is slidably connected inside the sleeve 6. A base 8 is fixedly connected to the bottom of the sliding rod 7. A rack 9 is fixedly connected to the top of the sliding rod 7. An adjustment motor 10 is fixedly connected to the top surface of the moving platform 3. A gear 11 is fixedly connected to the output shaft of the adjustment motor 10. The gear 11 meshes with the rack 9.

[0045] The telescopic outriggers are length-adjustable via gear 11 and rack 9. Sleeves 6 are fixed at the four corners of the moving platform 3, and sliding rods 7 are slidably connected within the sleeves 6. The rack 9 at its top meshes with gear 11 on the output shaft of the adjusting motor 10. When the height or level of the moving platform 3 needs adjustment, the adjusting motor 10 starts and drives gear 11 to rotate. The meshing transmission between gear 11 and rack 9 converts the rotational motion into linear motion of the sliding rod 7, causing it to extend and retract along the sleeve 6. This, in turn, changes in the support height of the base 8 achieve height adjustment and level calibration of the moving platform 3, ensuring its stability under different terrain conditions.

[0046] Further optimization of the solution includes the following X-axis movement components:

[0047] X-axis motor, the X-axis motor is fixed on the fixed platform 1;

[0048] The first lead screw 12 is horizontally rotatably connected to the fixed platform 1, and one end is connected to the X-axis motor shaft.

[0049] The first push rod 13 passes through the fixed base 4, and the two ends of the first push rod 13 are respectively fixed with sliders 21. One slider 21 is threadedly connected to the first lead screw 12. A horizontal shaft is fixedly connected to the fixed base 4, and the other slider 21 is slidably connected to the horizontal shaft.

[0050] The X-axis moving assembly achieves precise movement of the moving stage 3 along the X-axis direction through a lead screw and slider 21 transmission. The X-axis motor is fixed to the fixed platform 1, and its output shaft is axially connected to the first lead screw 12, which is horizontally rotatably connected to the fixed platform 1. When the X-axis motor starts, it drives the first lead screw 12 to rotate, causing the slider 21, threadedly connected to the first lead screw 12, to move axially along the lead screw, thereby driving the first push rod 13 (which passes through the fixed base 4) to push the fixed base 4 to move synchronously. Simultaneously, the slider 21 at the other end of the first push rod 13 slides on the horizontal axis of the fixed base 4, acting as a guide to prevent deviation during movement, ultimately achieving smooth and precise displacement of the moving stage 3 along the X-axis direction.

[0051] Further optimization of the solution includes the following Y-axis movement components:

[0052] The Y-axis motor is fixed on the fixed platform 1.

[0053] The second lead screw 14 is rotatably connected to the fixed platform 1 and is arranged perpendicularly to the first lead screw 12. One end of the second lead screw 14 is connected to the Y-axis motor shaft.

[0054] The second push rod 15 passes through the first push rod 13 through the fixed seat 4. The two ends of the second push rod 15 are respectively fixed with sliders 21. One slider 21 is threadedly connected to the second lead screw 14. A vertical shaft is fixedly connected to the fixed seat 4, and the other slider 21 is slidably connected to the vertical shaft.

[0055] The Y-axis and X-axis moving components are symmetrically arranged and perpendicular to each other. The movement of the moving stage 3 along the Y-axis is achieved through a lead screw and slider 21 transmission. The Y-axis motor drives the second lead screw 14 to rotate (the second lead screw 14 is perpendicular to the first lead screw 12). The slider 21, threadedly connected to the second lead screw 14, moves along the lead screw axis, driving the second push rod 15 to push the fixed seat 4. The slider 21 at the other end of the second push rod 15 slides on the vertical axis of the fixed seat 4, serving as a guide and limiter to ensure stable movement. The Y-axis and X-axis movements work together; through the superposition of displacements in two vertical directions, the moving stage 3 can be positioned at any point in the plane.

[0056] Further optimization of the scheme: the power component hydraulic push rod 16 is fixed to the end of the multi-degree-of-freedom robotic arm 5. The end of the hydraulic push rod 16 is fixedly connected to a threaded rod. A through hole is opened at the center of the soil-collecting bucket 19. The threaded rod passes through the through hole. A push plate 18 is slidably connected inside the soil-collecting bucket 19. A nut 17 is fixedly connected to the top surface of the push plate 18. The threaded rod is threadedly connected to the push rod and the nut 17. A positioning plate 20 is fixed on the threaded rod and abuts against the top surface of the soil-collecting bucket 19.

[0057] The power unit achieves soil extraction and unloading functions through hydraulic and threaded transmission. A hydraulic push rod 16 is fixed to the end of the multi-degree-of-freedom robotic arm 5, providing vertical driving force: during soil extraction, the hydraulic push rod 16 extends, driving the soil extraction bucket 19 downwards to insert into the soil. The positioning plate 20 abuts against the top surface of the soil extraction bucket 19, ensuring the bucket's position is fixed. During extraction, the vent hole on the top surface of the bucket 19 allows air to escape, preventing negative pressure from air compression that could hinder soil extraction and ensuring smooth entry of soil into the bucket 19.

[0058] After the soil sampling is completed, when it is necessary to unload the soil, remove the soil sampling bucket 19, use the push rod connected to the nut 17 with the threaded rod to push the push plate 18 to take out the sample.

[0059] The design has been further optimized by adding an exhaust vent to the top surface of the soil-taking bucket 19.

[0060] The vent on the top of the soil sampling bucket 19 is used to balance the air pressure during the soil sampling process. When the soil sampling bucket 19 is inserted into the soil, the air inside the bucket is compressed by the soil. If it cannot be expelled, it will create positive pressure, hindering soil from entering the bucket. Conversely, when the soil sampling bucket 19 is pulled out of the soil, negative pressure may form inside the bucket, making it difficult to retain soil or damaging the soil structure. The vent can expel or draw in air in real time, eliminating the impact of air pressure differences on the soil sampling process, ensuring smooth soil sampling and maintaining the original state of the soil sample. Further optimization of the scheme also includes a central controller, using a host computer to control the switching of electrical components.

[0061] In the description of this utility model, it should be understood that the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model 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. Therefore, they should not be construed as limitations on this utility model.

[0062] The embodiments described above are merely preferred embodiments of the present utility model and are not intended to limit the scope of the present utility model. Various modifications and improvements made to the technical solutions of the present utility model by those skilled in the art without departing from the spirit of the present utility model should fall within the protection scope defined by the claims of the present utility model.

Claims

1. A soil sampling device for easy microbial analysis, characterized in that, include: A fixed platform (1) is provided with a fixed support leg (2) installed at the bottom of the fixed platform (1). A mobile platform (3) is slidably connected to the fixed platform (1), and telescopic outriggers are installed on the mobile platform (3). A planar moving component, comprising a fixed base (4), an X-axis moving component and a Y-axis moving component, wherein the X-axis moving component and the Y-axis moving component are arranged vertically on the fixed platform (1), the fixed base (4) is fixed to the top surface of the moving platform (3), and the X-axis moving component and the Y-axis moving component are driven to the fixed platform (1) for controlling the moving platform (3) to move on a plane; A multi-degree-of-freedom robotic arm (5) is provided in two sets, and the two sets of multi-degree-of-freedom robotic arms (5) are symmetrically installed on both sides of the bottom of the mobile platform (3); Soil sampling assembly, which includes a power assembly and a soil sampling bucket (19), wherein the soil sampling bucket (19) is detachably connected to the output end of the power assembly.

2. The soil collection device for facilitating microbial analysis according to claim 1, characterized in that, The telescopic outrigger includes a sleeve (6), which is fixedly connected to the four corners of the moving platform (3). A sliding rod (7) is slidably connected inside the sleeve (6). A base (8) is fixedly connected to the bottom of the sliding rod (7). A rack (9) is fixedly connected to the top of the sliding rod (7). An adjusting motor (10) is fixedly connected to the top surface of the moving platform (3). A gear (11) is fixedly connected to the output shaft of the adjusting motor (10). The gear (11) meshes with the rack (9).

3. The soil collection device for facilitating microbial analysis according to claim 1, characterized in that, The X-axis movement component includes: X-axis motor, the X-axis motor is fixed on the fixed platform (1); The first lead screw (12) is horizontally rotatably connected to the fixed platform (1), and one end is shaft-connected to the X-axis motor. The first push rod (13) passes through the fixed seat (4). The two ends of the first push rod (13) are respectively fixed with sliders (21). One of the sliders (21) is threadedly connected to the first lead screw (12). A horizontal shaft is fixedly connected to the fixed seat (4). The other slider (21) is slidably connected to the horizontal shaft.

4. The soil collection device for facilitating microbial analysis according to claim 3, characterized in that, The Y-axis movement component includes: Y-axis motor, the Y-axis motor is fixed on the fixed platform (1); The second lead screw (14) is rotatably connected to the fixed platform (1) and is arranged perpendicularly to the first lead screw (12). One end of the second lead screw (14) is shaft-connected to the Y-axis motor. The second push rod (15) passes through the first push rod (13) through the fixed seat (4). The two ends of the second push rod (15) are respectively fixed with the sliders (21). One of the sliders (21) is threadedly connected to the second lead screw (14). A vertical shaft is fixedly connected to the fixed seat (4), and the other slider (21) is slidably connected to the vertical shaft.

5. The soil collection device for facilitating microbial analysis according to claim 1, characterized in that, The power assembly includes a hydraulic push rod (16), which is fixed to the end of the multi-degree-of-freedom robotic arm (5). A threaded rod is fixedly connected to the end of the hydraulic push rod (16). A through hole is provided at the center of the soil sampling bucket (19). The threaded rod passes through the through hole. A push plate (18) is slidably connected inside the soil sampling bucket (19). A nut (17) is fixedly connected to the top surface of the push plate (18). The threaded rod is threadedly connected to the push rod and the nut (17). A positioning plate (20) is fixed on the threaded rod. The positioning plate (20) abuts against the top surface of the soil sampling bucket (19).

6. The soil collection device for facilitating microbial analysis according to claim 5, characterized in that, The top surface of the soil sampling bucket (19) is provided with an exhaust hole.