An automatic soil sampling device
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- NORTHWEST ENGINEERING CORPORATION LIMITED
- Filing Date
- 2025-06-06
- Publication Date
- 2026-07-21
Smart Images
Figure CN224535461U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of soil sampling technology and relates to an automatic soil sampling device. Background Technology
[0002] Soil sampling is a crucial foundational task in fields such as environmental monitoring, agricultural research, geological exploration, and pollution investigation. Its purpose is to obtain representative soil samples for analyzing information such as soil physical properties, chemical composition, pollutant content, and microbial distribution. With the increasing demands for environmental protection, precision agriculture, and soil remediation, the importance of soil sampling technology is becoming increasingly prominent.
[0003] Traditional soil sampling relies primarily on manual drilling equipment, requiring operators to directly manipulate the drills on-site. However, this method has several limitations: when working at contaminated sites, operators are in close contact with the soil, facing prolonged exposure to toxic and hazardous substances, posing a high health risk. Furthermore, the control of drilling force, angle, and depth depends on individual experience, making it prone to cross-contamination or structural damage between different soil layers due to improper operation, affecting the accuracy of test data and potentially underestimating the actual level of contamination. In addition, traditional sampling methods require transporting samples to a laboratory for analysis. During this process, poor preservation conditions (such as temperature changes, inadequate sealing, or vibration) can lead to the release of volatile organic compounds, changes in microbial activity, or degradation of pollutants, resulting in final test results that do not accurately reflect the on-site contamination situation. Regarding energy supply, existing field sampling equipment largely relies on diesel generators or external power sources, which are not only noisy and energy-intensive but also generate significant carbon emissions, failing to meet the requirements of green and environmentally friendly operations and limiting its use in remote areas without power grid coverage.
[0004] Therefore, there is an urgent need for a soil sampling device that is highly automated, consumes little energy, and reduces human intervention, in order to improve sampling safety, data reliability, and environmental adaptability. Utility Model Content
[0005] The purpose of this invention is to solve the problems in the prior art and provide an automatic soil sampling device that achieves automated multi-point sampling of contaminated soil through photovoltaic energy self-sufficiency. It can adapt to complex terrain and continuous sampling, and significantly improves data accuracy and operational safety.
[0006] To achieve the above objectives, the present invention adopts the following technical solution:
[0007] This utility model provides an automatic soil sampling device, comprising:
[0008] The sampling device body has wheels at the bottom and a power-generating film evenly covering the side walls and top outer surface.
[0009] The sampling device body contains a turntable, a motor unit, and a sample storage area. The power generation membrane and the motor unit are electrically connected, and the motor unit drives the turntable.
[0010] The cleaning mechanism includes a cleaning device shaft vertically connected to the center of the bottom of the turntable via a telescopic device and a cleaning scraper fixed to the end of the cleaning device shaft;
[0011] Multiple hydraulic drive units are evenly distributed along the circumference of the bottom of the turntable to fix the sampling tube by magnetic attraction;
[0012] A tube feeder is installed inside the sampling device body, with multiple sampling tubes spaced apart along its conveying direction, and the sampling tube at the end of the tube feeder in the conveying direction is magnetically connected to the hydraulic drive device.
[0013] The sampling mechanism includes two transverse slide rails symmetrically arranged in the sample storage area and a sampling claw slidably installed between the transverse slide rails. The sampling claw is used to grab the sampling tube that is magnetically connected to the hydraulic drive device and transfer it to the sample storage area. One end of the transverse slide rail is fixed to the inner wall of the sampling device body.
[0014] Preferably, the bottom of the sample storage area is provided with a tube seat that matches the bottom of the sampling tube.
[0015] Preferably, the sampling device body is equipped with a lithium-ion battery pack; the lithium-ion battery pack and the motor are electrically connected.
[0016] Preferably, a longitudinal transmission belt is provided on the transverse slide rail; the transverse slide rail and the sampling claw are slidably connected by the longitudinal transmission belt.
[0017] Preferably, the bottom of the sampling device body is connected to the fixing mechanism; a positioning sensor is provided on the fixing mechanism; a positioning system is provided inside the sampling device body; and the positioning system and the positioning sensor are electrically connected.
[0018] Preferably, the fixing mechanism comprises at least two symmetrically distributed fixing units; each fixing unit includes a support leg, a support plate, and a ground gripper; the support leg is connected to the bottom of the sampling device body, and the support leg is connected to the support plate; the support plate is connected to the ground gripper; the support leg is a lifting support leg.
[0019] Preferably, the positioning sensor is located at the bottom end of the gripper.
[0020] Preferably, the motor assembly and the wheel are electrically connected.
[0021] Preferably, the support plate is a horizontally arranged rectangular plate, and the support leg is connected to the center of the rectangular plate.
[0022] Preferably, the power-generating film is a flexible perovskite film with a hydrophobic coating on its surface.
[0023] Compared with the prior art, the present invention has the following beneficial effects:
[0024] The generator provides a continuous supply of clean energy to the motor unit through a power-generating membrane, ensuring energy self-sufficiency for field operations. A hydraulically driven device distributed around the bottom of the turntable magnetically secures the sampling tube, and the continuous tube supply design of the tube feeder enables rapid tube replacement and continuous operation. The retractable shaft and scraper of the surface cleaning mechanism effectively remove surface impurities from the sampling point, ensuring sampling quality. Symmetrically arranged transverse slide rails work in conjunction with the sampling claws to accurately grasp and smoothly transport the sampling tube to the storage area. This invention features a compact structure and a high degree of automation, significantly improving the efficiency and accuracy of soil sampling, and is particularly suitable for large-scale, multi-batch standardized sampling tasks. Attached Figure Description
[0025] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.
[0026] Figure 1 This is a schematic diagram of the structure of an automatic soil sampling device according to the present invention.
[0027] The components include: 1. Power generation membrane; 2. Lithium-ion battery pack; 3. Positioning system; 4. Motor unit; 5. Turntable; 6. Hydraulic drive device; 7. Sampling tube; 8. Tube feeder; 9. Sampling claw; 10. Sample storage area; 11. Transverse slide rail; 12. Longitudinal transmission belt; 13. Tube seat; 14. Cleaner shaft; 15. Cleaner scraper; 16. Support leg; 17. Support plate; 18. Ground gripper; 19. Positioning sensor. Detailed Implementation
[0028] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.
[0029] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.
[0030] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.
[0031] In the description of the embodiments of this utility model, it should be noted that if terms such as "upper," "lower," "horizontal," or "inner" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the utility model product is in use, they are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the utility model. Furthermore, terms such as "first" and "second" are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.
[0032] Furthermore, the use of the term "horizontal" does not imply that the component must be absolutely horizontal, but rather that it can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal than "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.
[0033] In the description of the embodiments of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.
[0034] The present invention will now be described in further detail with reference to the accompanying drawings:
[0035] This utility model provides an automatic soil sampling device, such as... Figure 1 As shown, it includes:
[0036] The sampling device body has wheels at the bottom and a power generation film 1 evenly covered on the side walls and top outer surface;
[0037] The rotating disk 5, the motor group 4, and the sample storage area 10 are disposed inside the sampling device body. The power generation membrane 1 and the motor group 4 are electrically connected, and the motor group 4 drives the rotating disk 5.
[0038] The cleaning mechanism includes a cleaning device shaft 14 vertically connected to the center of the bottom of the turntable 5 via a telescopic device and a cleaning scraper 15 fixed to the end of the cleaning device shaft 14;
[0039] Multiple hydraulic drive devices 6 are evenly distributed along the bottom circumference of the turntable 5 to fix the sampling tube 7 by magnetic attraction;
[0040] The tube feeder 8 is located inside the sampling device body, and multiple sampling tubes 7 are spaced apart along its conveying direction. The sampling tube 7 at the end of the conveying direction of the tube feeder 8 is magnetically connected to the hydraulic drive device 6.
[0041] The sampling mechanism includes two transverse slide rails 11 symmetrically arranged in the sample storage area 10 and a sampling claw 9 slidably installed between the transverse slide rails 11. The sampling claw 9 is used to grab the sampling tube 7 which is magnetically connected to the hydraulic drive device 6 and transfer it to the sample storage area 10. One end of the transverse slide rail 11 is fixed on the inner wall of the sampling device body.
[0042] This invention utilizes a power-generating film 1 covering the sidewalls and top of the sampling device to convert solar energy into electrical energy, providing clean energy for the generator set 4. This not only reduces dependence on external power sources but also achieves zero-emission operation, making it particularly suitable for long-term work in remote, grid-free environments, offering both energy-saving and environmental advantages. Multiple sampling tubes 7 are pre-installed on the tube delivery rack 8, and combined with the magnetic fixation of the hydraulic drive device 6 and the automatic gripping and transport by the sampling claws 9, rapid replacement and continuous operation of the sampling tubes 7 are achieved, significantly reducing manual intervention time. The surface cleaning mechanism uses a telescopic rotating shaft and scraper, allowing flexible adjustment of the scraping depth to ensure the removal of surface impurities before sampling. Furthermore, the hydraulic drive device 6 adapts to soils of different hardness through pressure adjustment, enabling standardized sampling under diverse geological conditions. The hydraulic drive devices 6, evenly distributed at the bottom of the turntable 5, magnetically fix the sampling tubes 7, preventing displacement caused by mechanical vibration. The transverse slide rail 11 and the sampling claws 9 ensure the stability and positioning accuracy of the sampling tubes 7 during transport.
[0043] The power generation film 1 is a flexible perovskite film with a hydrophobic coating on its surface. The flexible perovskite film can closely adhere to the irregular surface of the device, maximizing the use of external light conditions to achieve efficient energy conversion. The introduction of the hydrophobic coating gives the power generation film 1 excellent moisture-proof and anti-fouling performance, effectively resisting rainwater erosion and dust accumulation.
[0044] The bottom of the sample storage area 10 is provided with a tube seat 13 that matches the bottom of the sampling tube 7, which can effectively fix the sampling tube 7 and maintain its vertical stability, prevent the sample from spilling or mixing due to shaking during transportation or movement, and ensure the integrity and representativeness of the sample.
[0045] The sampling device is equipped with a lithium-ion battery pack 2 inside its main body; the lithium-ion battery pack 2 is electrically connected to the motor assembly 4. The lithium-ion battery pack 2 has high energy density and fast charge / discharge characteristics, and can provide continuous power supply in rainy weather or when there is insufficient sunlight, ensuring that field operations are not limited by environmental conditions.
[0046] A longitudinal transmission belt 12 is provided on the transverse slide rail 11; the transverse slide rail 11 and the sampling claw 9 are slidably connected by the longitudinal transmission belt 12. The longitudinal transmission belt 12 not only enables the sampling claw 9 to move smoothly and quietly on the transverse slide rail 11, but also controls the gripping position through precise belt drive, ensuring that the transfer process of the sampling tube 7 from the hydraulic drive device 6 to the sample storage area 10 is stable and vibration-free.
[0047] The bottom of the sampling device body is connected to the fixing mechanism; a positioning sensor 19 is installed on the fixing mechanism; a positioning system 3 is installed inside the sampling device body; the positioning system 3 and the positioning sensor 19 are electrically connected. The positioning system 3 can receive preset coordinate commands and automatically control the device to move to the target point. When the positioning sensor 19 detects that the device has reached the preset coordinates, it triggers precise positioning lock to ensure accurate sampling position.
[0048] The fixing mechanism comprises at least two symmetrically distributed fixing units; each fixing unit includes a support leg 16, a support plate 17, and a ground gripper 18; the support leg 16 is connected to the bottom of the sampling device body, and the support leg 16 is connected to the support plate 17; the support leg 16 is a lifting support leg. By adopting a symmetrically distributed lifting fixing unit design, and through the independent lifting adjustment of the support leg 16, it can quickly adapt to complex terrain and achieve precise leveling of the sampling device, ensuring the absolute stability of the equipment during sampling operations. The support plate 17 can form a stable support structure under unfavorable ground conditions such as soft or sloping surfaces, and the ground gripper 18 can firmly grip the ground, effectively preventing displacement or vibration during the sampling process.
[0049] The support plate 17 is a horizontally arranged rectangular plate, and the support leg 16 is connected to the center of the rectangular plate. The rectangular structure effectively disperses the weight of the equipment by increasing the grounding area, preventing sinking when working on soft ground. It is particularly suitable for terrains with poor load-bearing capacity such as swamps and sandy areas.
[0050] The positioning sensor 19 is located at the bottom end of the ground gripper 18, so that the positioning sensor 19 directly contacts the ground, completely eliminating mechanical structure errors and ensuring that the sampling coordinates are absolutely accurate.
[0051] The motor unit 4 is electrically connected to the wheels, enabling the sampling device to move autonomously, which significantly improves the mobility of the equipment and the efficiency of field operations, while simplifying the transmission structure and reducing energy consumption.
[0052] This utility model's automatic soil sampling device achieves efficient and accurate field soil sampling operations through intelligent energy management, precise positioning, and a fully automated sampling process. Its working process is as follows:
[0053] 1. The device is powered by a photovoltaic-lithium battery dual power system. On sunny days, it prioritizes the use of energy from the flexible perovskite photovoltaic film, and automatically switches to the energy storage battery on cloudy days. After receiving the preset coordinates, the positioning system 3 drives the wheels to automatically navigate to the target area. When the positioning sensor 19 at the end of the ground gripper 18 confirms that the preset coordinates have been reached, the symmetrically distributed lifting and fixing mechanism is activated: the outriggers 16 automatically adjust their height according to the terrain, the support plate 17 contacts the ground to form stable support, and the ground gripper 18 embeds itself into the ground to complete centimeter-level precise positioning.
[0054] 2. The motor unit 4 drives the surface cleaning mechanism. The telescopic device lowers the surface cleaner shaft 14, which drives the surface cleaning scraper 15 to rotate and remove surface debris (leaves, grass roots, etc.). After cleaning is completed, the scraper automatically retracts, exposing the area to be sampled.
[0055] 3. The hydraulic drive device 6 at the bottom of the turntable 5 magnetically holds the sampling tube 7 delivered by the tube delivery frame 8, which is then vertically inserted into the soil under a preset pressure. The sampling depth can be precisely controlled by the hydraulic system, and the magnetic field is automatically deactivated and the tubes are separated after sampling is completed.
[0056] 4. The sampling claw 9, under the coordinated action of the transverse slide rail 11 and the longitudinal conveyor belt 12, accurately grasps the fully loaded sampling tube 7. The sample is then transferred to the sample storage area 10 via a smooth belt drive, fixing the bottom of the sampling tube 7 onto the tube holder 13.
[0057] 5. After the sampling is completed, the fixing mechanism automatically retracts the ground gripper 18, the lifting outrigger 16 resets, and the power generation film 1 or lithium-ion battery pack 2 continues to supply power to the system, preparing to navigate to the next preset point until the entire sampling process is completed.
[0058] The above are merely preferred embodiments of this utility model and are not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.
Claims
1. An automatic soil sampling device, characterized in that, include: The sampling device body has wheels at the bottom and a power generation film evenly covered on the side walls and top outer surface (1). The rotating disk (5), motor group (4) and sample storage area (10) are set inside the sampling device body. The power generation membrane (1) and the motor group (4) are electrically connected, and the motor group (4) drives the rotating disk (5). The cleaning mechanism includes a cleaning device shaft (14) vertically connected to the center of the bottom of the turntable (5) via a telescopic device and a cleaning scraper (15) fixed to the end of the cleaning device shaft (14). Multiple hydraulic drive devices (6) are evenly distributed along the bottom circumference of the turntable (5) to fix the sampling tube (7) by magnetic attraction. The tube feeder (8) is located inside the sampling device body and has multiple sampling tubes (7) spaced apart along its conveying direction. The sampling tube (7) at the end of the conveying direction of the tube feeder (8) is magnetically connected to the hydraulic drive device (6). The sampling mechanism includes two transverse slide rails (11) symmetrically arranged in the sample storage area (10) and a sampling claw (9) slidably installed between the transverse slide rails (11). The sampling claw (9) is used to grab the sampling tube (7) magnetically connected to the hydraulic drive device (6) and transfer it to the sample storage area (10). One end of the transverse slide rail (11) is fixed on the inner wall of the sampling device body.
2. The automatic soil sampling device according to claim 1, characterized in that, The bottom of the sample storage area (10) is provided with a tube seat (13) that matches the bottom of the sampling tube (7).
3. The automatic soil sampling device according to claim 1, characterized in that, The sampling device body is equipped with a lithium-ion battery pack (2); the lithium-ion battery pack (2) and the motor pack (4) are electrically connected.
4. The automatic soil sampling device according to claim 1, characterized in that, A longitudinal transmission belt (12) is provided on the transverse slide rail (11); the transverse slide rail (11) and the sampling claw (9) are slidably connected by the longitudinal transmission belt (12).
5. The automatic soil sampling device according to claim 1, characterized in that, The bottom of the sampling device body is connected to the fixing mechanism; a positioning sensor (19) is provided on the fixing mechanism; a positioning system (3) is provided inside the sampling device body; the positioning system (3) and the positioning sensor (19) are electrically connected.
6. The automatic soil sampling device according to claim 5, characterized in that, The fixing mechanism has at least two symmetrically distributed fixing units; the fixing unit includes a support leg (16), a support plate (17), and a ground gripper (18); the support leg (16) is connected to the bottom of the sampling device body, and the support leg (16) is connected to the support plate (17); the support plate (17) is connected to the ground gripper (18); the support leg (16) is a lifting support leg.
7. The automatic soil sampling device according to claim 6, characterized in that, The positioning sensor (19) is located at the bottom end of the ground gripper (18).
8. The automatic soil sampling device according to claim 7, characterized in that, The motor unit (4) is electrically connected to the wheel.
9. The automatic soil sampling device according to claim 6, characterized in that, The support plate (17) is a horizontally arranged rectangular plate, and the support leg (16) is connected to the center of the rectangular plate.
10. The automatic soil sampling device according to claim 1, characterized in that, The power generation film (1) is a flexible perovskite film with a hydrophobic coating on its surface.