A soil sampling device
Patent Information
- Application Number
- CN202521491912.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-07-16
- Publication Date
- 2026-09-01
- Estimated Expiration
- 2035-07-16
AI Technical Summary
[0004]层间污染问题：传统采样器在提钻过程中易导致不同深度土样混杂；
[0025]1、多结构优化，提升采样效率与样品质量：启闭件灵活控制保障样品完整，防止土壤样品在取出过程中洒落、丢失或受污染，为后续分析检测提供完整、可靠的样本；取样口边缘的锯齿状倒刺在插入土壤时可有效切割土壤，降低插入阻力，同时防止土块堵塞取样口，使土壤更易进入采样机构；内壁的倾斜导流槽引导土壤向采样管中心聚集，避免土壤堆积在取样口，尤其适用于粘性土壤或颗粒较大的土壤采样，确保采样过程顺畅高效。
Smart Images
Figure CN224707703U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of soil sampling technology, and specifically relates to a soil sampling device. Background Technology
[0002] Traditional soil sampling devices struggle to precisely control sampling depth. Scientific research and environmental monitoring often demand precise sampling depth, but past devices relied heavily on operator experience for estimation, leading to significant deviations in sampling depth. Common, simple manual samplers, lacking precise depth markings, force operators to make only approximate judgments, making it difficult to ensure that collected soil samples originate from specific soil layers. This severely impacts the accuracy and reliability of sampling data, failing to meet the demands of high-precision research.
[0003] Current soil sampling devices have significant shortcomings in terms of stratified sampling accuracy, ease of operation, and sample integrity assurance. The main problems are concentrated in the following aspects:
[0004] Interlayer contamination problem: Traditional samplers are prone to causing soil samples from different depths to mix during the drilling process;
[0005] Inaccurate depth control: Relies on manual marking of scales, easily affected by soil backfilling;
[0006] Low operational efficiency: A single drilling operation can only obtain a sample at a single depth, requiring repeated drilling.
[0007] In summary, there is an urgent need to provide a soil sampling device that can accurately control sampling depth, prevent interlayer contamination, and has high operational efficiency. Utility Model Content
[0008] The purpose of this invention is to provide a soil sampling device that can accurately control sampling depth, prevent interlayer contamination, and has high operating efficiency.
[0009] The above objective is achieved through the following technical solution: a soil sampling device, comprising a support positioning mechanism and a sampling mechanism, wherein the support positioning mechanism is sleeved outside the sampling mechanism, the sampling mechanism is movable along the axial direction of the support positioning mechanism, the outer peripheral surface of the support positioning mechanism is provided with a scale, the support positioning mechanism is provided with a positioning viewing window, the sampling mechanism is provided with a sampling port, and the sampling port is provided with an opening and closing component.
[0010] In practical applications, the support and positioning mechanism can be made of high-strength metal (hard alloy) or engineering plastic into a cylindrical structure, which is fitted onto the outside of the sampling mechanism. The scale on the outer surface is set by laser engraving or printing, with the scale values determined according to actual sampling needs, such as intervals of 5cm or 10cm, for precise marking of sampling depth. A rectangular or strip-shaped window can be opened on the side wall of the support and positioning mechanism, with the window surface covered by transparent acrylic or glass, allowing operators to easily observe the relative position of the sampling mechanism and the scale. The sampling mechanism and the support and positioning mechanism can move axially through the cooperation of a spiral guide rail or a guide rod and guide sleeve, ensuring that the sampling mechanism remains stable during movement and does not shift or shake.
[0011] The sampling mechanism is also made of robust and durable materials, such as food-grade stainless steel, and has an internal cavity to hold soil samples. The sampling port is located on the side or bottom wall of the sampling mechanism and can be circular, square, or other shapes that facilitate soil entry. The opening and closing mechanism can be designed in various forms, such as: a sliding opening and closing mechanism: a sliding baffle is installed at the sampling port, connected to the sampling mechanism via a guide rail. The opening and closing of the sampling port is controlled manually or electrically by sliding the baffle. A flip-type opening and closing mechanism: a cover plate is installed on the edge of the sampling port by hinge. The operator controls the opening and closing of the sampling port by rotating the cover plate. A sealing strip can be installed between the cover plate and the sampling port to ensure a tight seal when closed.
[0012] When conducting soil sampling, first fix the support and positioning mechanism at the sampling location. Observe the scale through the positioning viewing window, and move the sampling mechanism downwards along the axis of the support and positioning mechanism to the target sampling depth. After reaching the depth, open the opening and closing mechanism, and the soil enters the cavity of the sampling mechanism through the sampling port. After sampling is completed, close the opening and closing mechanism to prevent soil sample spillage or leakage, and then remove the sampling mechanism from the support and positioning mechanism.
[0013] The scale markings on the outer surface of the supporting positioning mechanism and the positioning viewing window allow operators to intuitively and accurately determine the depth of the sampling mechanism in the soil. Compared to the traditional method of estimating sampling depth based on experience, this device can precisely control the sampling depth, ensuring that the collected soil samples come from specific soil layers. This meets the needs of scientific research, environmental monitoring, and other scenarios with strict requirements for sampling depth, improving the accuracy and reliability of sampling data. The opening and closing mechanism effectively controls the opening and closing state of the sampling port before and after sampling. During sampling, the sampling port is opened to ensure smooth soil entry; after sampling, it is closed promptly to prevent soil samples from spilling, being lost, or being contaminated during the removal of the sampling mechanism, thus ensuring the integrity of the soil sample and providing a reliable sample basis for subsequent analysis and testing. The supporting positioning mechanism is fitted outside the sampling mechanism and achieves axial movement through a reasonable connection method. This structural design enhances the stability of the entire sampling device.
[0014] A further technical solution is that the opening and closing element is a sliding or flip-up baffle.
[0015] A further technical solution is that the sampling port is located on the side of the sampling mechanism, and the edge of the sampling port is provided with serrated barbs. With this configuration, the serrated barbs cut the soil when inserted, reducing resistance and preventing soil clogging the sampling port, making it easier for soil to enter the sampling mechanism. The barbs also prevent soil backfilling to some extent.
[0016] A further technical solution is that the inner wall of the sampling mechanism is provided with an inclined guide channel, and the uppermost end of the guide channel is located at the sampling port. This arrangement guides the soil entering from the side towards the center of the device, preventing soil accumulation at the sampling port.
[0017] A further technical solution is that the sampling mechanism includes a handle at the top, a sampling tube in the middle, and a screw-in part at the bottom. In one specific embodiment, the screw-in part is a auger drill bit.
[0018] A further technical solution is that the sampling tube is composed of multiple tube segments of predetermined lengths. The bottom ends of each tube segment are closed to form a sampling space, and each segment is equipped with a sampling port and an opening / closing device. In application, the sampling tube is not a single tube of fixed length. It is assembled from multiple short tube segments of standard lengths. These standard lengths are 10cm, 20cm, and 50cm. Users can decide the thickness (depth) of the soil sample to be obtained each time, based on their sampling needs. For example, they may want to collect soil samples from the surface layer (0-10cm), or from 10-30cm (i.e., 20cm thickness), or from 30-80cm (i.e., 50cm thickness). Before sampling, the operator selects the appropriate length of sampling tube segment based on the required sampling layer thickness. For example, if a 10cm thick soil sample is needed, a 10cm long sampling tube segment is installed. If a 20cm thick soil sample is needed, a 20cm long sampling tube segment is installed. If a 50cm thick soil sample is needed, a 50cm long sampling tube segment is installed. When soil samples need to be collected from different locations in layers, multiple samples can be assembled. The tube segments need to be designed with quick, reliable, and sealed connection interfaces (such as threads, snap-fits, flanges, etc.) to facilitate replacement and ensure the integrity of the sampling chamber. In this way, tube segments of different lengths can be selected according to sampling depths. When multiple tubes are combined, they can be used to isolate multiple sampling chambers in layers through different tube segments. The side openings correspond to independent chambers of different depths. Each chamber is equipped with a sampling port and an opening / closing device. After insertion to the designated depth, the corresponding opening / closing device is opened for sampling, preventing mixing of different soil layers.
[0019] A further technical solution is that the handle is connected to the opening and closing component via a linkage mechanism. When the handle is pressed down, the linkage mechanism pushes the opening and closing component to slide open; when the handle is lifted, the linkage mechanism pulls the opening and closing component to slide close. The linkage mechanism can be a crank-connecting rod structure, converting the handle movement into linear sliding of the opening and closing component to achieve the opening and closing of the sampling port. An adhesive strip can be embedded on the edge of the opening and closing component, which, when closed, presses against the sampling tube body to seal and prevent soil leakage. Alternatively, the opening and closing component can be an electromagnetic valve, controlled by a controller.
[0020] A further technical solution is to install a miniature vibration motor inside the sampling port. This design activates vibration upon insertion, causing soil particles to loosen and enter the sampling port, making it particularly suitable for clayey soils or compacted soil layers.
[0021] A further technical solution is that the screw-in part is equipped with a pressure sensor, the support positioning mechanism is equipped with an audible and visual alarm, the pressure sensor is communicatively connected to the audible and visual alarm, and the audible and visual alarm displays different warning colors according to different pressure signals received.
[0022] The pressure sensor is embedded in the side wall of the screw-in section 8cm from the bottom, with its sensing surface flush with the inner wall, directly sensing the radial pressure of the soil on the pipe wall (reflecting compaction). When changes in soil compaction cause changes in the lateral pressure of the outer pipe, the pressure sensor detects the deformation, and the electrical signal control unit displays the pressure in real time. With this setup, when the drill bit of the screw-in section screws into the soil, the pressure sensor monitors the changes in drill bit resistance in real time (sampling frequency 100Hz); when the drill bit penetrates a hard soil layer (such as a clay layer) and enters the target soft soil layer (such as a sandy soil layer), the resistance changes abruptly. When the resistance drops by more than 15% (soft soil layer), the audible and visual alarm (302) triggers a green light; when the resistance increases by more than 30% (hard layer), the audible and visual alarm (302) triggers a red light, indicating to the operator that a new soil layer has been reached, achieving dual threshold triggering and avoiding misjudgment.
[0023] A further technical solution is that the support and positioning mechanism is equipped with a base. This arrangement ensures the stability of the soil sampling device during operation.
[0024] Compared with existing technologies, the present invention has the following advantages:
[0025] 1. Multi-structure optimization improves sampling efficiency and sample quality: Flexible control of the opening and closing mechanism ensures sample integrity, preventing soil samples from spilling, being lost, or becoming contaminated during extraction, providing complete and reliable samples for subsequent analysis and testing; the serrated barbs on the edge of the sampling port effectively cut the soil when inserted, reducing insertion resistance and preventing soil clogging the sampling port, making it easier for soil to enter the sampling mechanism; the inclined guide channel on the inner wall guides the soil to gather towards the center of the sampling tube, avoiding soil accumulation at the sampling port, which is especially suitable for sampling clayey soils or soils with large particles, ensuring a smooth and efficient sampling process.
[0026] 2. Modular design enhances sampling flexibility: The sampling tube of the sampling mechanism consists of multiple tube segments of predetermined lengths, which users can freely combine according to actual sampling needs. If a single depth soil layer sample needs to be collected, the corresponding length tube segment can be directly selected; if stratified sampling is required, multiple tube segments can be assembled, with each tube segment independently forming a sampling space and equipped with a sampling port and opening / closing device, enabling precise stratified sampling of soil layers at different depths, avoiding sample mixing, and meeting diverse research needs such as soil profile analysis.
[0027] 3. Dual depth calibration significantly improves sampling accuracy: The scale and positioning window on the outer circumference of the supporting positioning mechanism enable preliminary calibration of the sampling depth. Operators can intuitively and accurately move the sampling mechanism to the target depth based on the scale, with the error controlled within ±1cm. Compared to traditional experience-based sampling, this significantly improves the accuracy of sampling depth, meeting the needs of scenarios with strict sampling depth requirements, such as scientific research and environmental monitoring. The pressure sensor in the screw-in section, together with the audible and visual alarm of the supporting positioning mechanism, forms a second line of defense for depth calibration, achieving dual depth calibration in conjunction with the scale on the outer circumference of the supporting positioning mechanism. Attached Figure Description
[0028] The accompanying drawings, which form part of this utility model, are used to provide a further understanding of this utility model. The illustrative embodiments of this utility model and their descriptions are used to explain this utility model and do not constitute an improper limitation of this utility model.
[0029] Figure 1 This is a schematic diagram of the structure of a soil sampling device according to one embodiment of the present invention;
[0030] Figure 2 for Figure 1 A schematic diagram of the working state of the soil sampling device involved in the paper;
[0031] Figure 3 This is a schematic diagram of the sampling mechanism according to one embodiment of the present invention.
[0032] In the picture:
[0033] 1. Support positioning mechanism; 2. Sampling mechanism; 3. Scale; 4. Positioning viewing window
[0034] 5. Opening and closing parts; 6. Barbs; 7. Handle; 8. Sampling tube
[0035] 9. Spiral feed section; 10. Pressure sensor; 11. Audible and visual alarm; 12. Spiral guide rail
[0036] 13 bases 14 piston assembly Detailed Implementation
[0037] The present invention will now be described in detail with reference to the accompanying drawings. This description is merely illustrative and explanatory, and should not be construed as limiting the scope of protection of the present invention. Furthermore, those skilled in the art can combine the features in the embodiments described herein and in different embodiments according to the description in this document.
[0038] The embodiments of this utility model are as follows, please refer to... Figures 1-3 A soil sampling device includes a support and positioning mechanism 1 and a sampling mechanism 2. The support and positioning mechanism 1 is sleeved on the sampling mechanism 2. The sampling mechanism 2 can move along the axial direction of the support and positioning mechanism 1. The outer peripheral surface of the support and positioning mechanism 1 is provided with a scale 3. The support and positioning mechanism 1 is provided with a positioning viewing window 4. The sampling mechanism 2 is provided with a sampling port. The sampling port is provided with an opening and closing element 5.
[0039] In practical applications, the support and positioning mechanism 1 can be made of high-strength metal (hard alloy) or engineering plastic into a cylindrical structure, which is fitted onto the outside of the sampling mechanism 2. The scale 3 on the outer circumference is set by laser engraving or printing, and the scale 3 values are determined according to actual sampling needs, such as intervals of 5cm or 10cm, for precise marking of sampling depth. The positioning viewing window 4 can be a rectangular or strip-shaped window opened on the side wall of the support and positioning mechanism 1, with the window surface covered by transparent acrylic or glass material, facilitating the operator's observation of the relative position of the sampling mechanism 2 and the scale 3. Figure 1 The sampling mechanism 2 and the support and positioning mechanism 1 can move axially through the cooperation of the spiral guide rail 12 or the cooperation of the guide rod and the guide sleeve, so as to ensure that the sampling mechanism 2 remains stable during the movement and does not deviate or shake.
[0040] The sampling mechanism 2 is also made of robust and durable materials, such as food-grade stainless steel, and has an internal cavity for containing soil samples. The sampling port is located on the side or bottom wall of the sampling mechanism 2, and its shape can be circular, square, or other shapes that facilitate soil entry. The opening and closing element 5 can be designed in various forms, such as: a sliding opening and closing element 5: a sliding baffle is installed at the sampling port, connected to the sampling mechanism 2 via a guide rail, and the opening and closing of the sampling port is controlled manually or electrically. A flip-type opening and closing element 5: a cover plate is installed on the edge of the sampling port by hinge, and the operator controls the opening and closing of the sampling port by rotating the cover plate. A sealing strip can be installed between the cover plate and the sampling port to ensure a tight seal when closed.
[0041] like Figure 1 and Figure 2 During soil sampling, the support and positioning mechanism 1 is first fixed at the sampling location. The scale 3 is observed through the positioning viewing window 4. The sampling mechanism 2 is then moved downwards along the axis of the support and positioning mechanism 1 to the target sampling depth. Once the depth is reached, the opening and closing device 5 is opened, allowing soil to enter the cavity of the sampling mechanism 2 through the sampling port. After sampling is completed, the opening and closing device 5 is closed to prevent soil sample spillage or leakage. The sampling mechanism 2 is then removed from the support and positioning mechanism 1.
[0042] The scale 3 on the outer circumference of the supporting positioning mechanism 1 and the positioning viewing window 4 allow operators to intuitively and accurately determine the depth of the sampling mechanism 2 in the soil. Compared to the traditional method of estimating sampling depth based on experience, this device can precisely control the sampling depth, ensuring that the collected soil samples come from specific soil layers. This meets the needs of scientific research, environmental monitoring, and other scenarios with strict requirements for sampling depth, improving the accuracy and reliability of sampling data. The opening and closing component 5 can effectively control the opening and closing state of the sampling port before and after sampling. During sampling, the sampling port is opened to ensure smooth soil entry; after sampling, it is closed in time to prevent soil samples from spilling, being lost, or being contaminated by the outside environment during the removal of the sampling mechanism 2, thus ensuring the integrity of the soil sample and providing a reliable sample basis for subsequent analysis and testing. The supporting positioning mechanism 1 is fitted outside the sampling mechanism 2 and achieves axial movement through a reasonable connection method. This structural design enhances the stability of the entire sampling device.
[0043] Based on the above embodiments, in another embodiment of the present invention, the opening and closing member 5 is a sliding or flip-up baffle.
[0044] Based on the above embodiments, in another embodiment of the present invention, such as Figure 3 The sampling port is located on the side of the sampling mechanism 2, and the edge of the sampling port is provided with serrated barbs 6. With this configuration, the serrated barbs 6 cut the soil when inserted, reducing resistance and preventing soil clogging the sampling port, making it easier for soil to enter the sampling mechanism 2. The barbs 6 also prevent soil backfilling to a certain extent.
[0045] Based on the above embodiments, in another embodiment of this utility model, the inner wall of the sampling mechanism 2 is provided with an inclined guide groove, and the uppermost end of the guide groove is located at the sampling port. This arrangement guides the soil entering from the side towards the center of the device, preventing soil accumulation at the sampling port.
[0046] Based on the above embodiments, in another embodiment of the present invention, such as Figure 3 The sampling mechanism 2 includes a handle 7 at the top, a sampling tube 8 in the middle, and a screw-in part 9 at the bottom. In one specific embodiment, the screw-in part 9 is a auger drill bit.
[0047] Based on the above embodiments, in another embodiment of the present invention, such as Figure 3The sampling tube 8 is composed of multiple tube segments of predetermined lengths. The bottom ends of each tube segment are closed to form a sampling space, and each segment is equipped with a sampling port and an opening / closing device 5. During application, the sampling tube 8 is not a single tube of fixed length. It is assembled from multiple short tube segments of standard lengths. These standard lengths are 10cm, 20cm, and 50cm. Users can decide the thickness (depth) of the soil sample to be obtained for each sampling based on their sampling needs. For example, they may want to collect soil samples from the surface layer (0-10cm), or from 10-30cm (i.e., 20cm thick), or from 30-80cm (i.e., 50cm thick). Before sampling, the operator selects the appropriate length of sampling tube segment 8 based on the required sampling layer thickness. For example, if a 10cm thick soil sample is required, a 10cm long sampling tube segment 8 is installed. If a 20cm thick soil sample is required, a 20cm long sampling tube segment 8 is installed. If a 50cm thick soil sample is required, a 50cm long sampling tube segment 8 is installed. When soil samples need to be collected from different locations in layers, multiple samples can be assembled. The tube segments need to be designed with quick, reliable, and sealed connection interfaces (such as threads, snap-fits, flanges, etc.) to facilitate replacement and ensure the integrity of the sampling chamber. In this way, tube segments of different lengths can be selected according to sampling depths. When multiple tubes are combined, the sampling tube 8 is used to isolate multiple sampling chambers in layers through different tube segments. The side openings correspond to independent chambers of different depths. Each chamber is equipped with a sampling port and an opening / closing device 5. After insertion to the designated depth, the corresponding opening / closing device 5 is opened for sampling, preventing mixing of different soil layers.
[0048] Based on the above embodiments, in another embodiment of this utility model, the handle 7 is connected to the opening and closing member 5 via a linkage transmission mechanism. When the handle 7 is pressed down, the linkage transmission mechanism pushes the opening and closing member 5 to slide open; when the handle 7 is lifted up, the linkage transmission mechanism pulls the opening and closing member 5 to slide close. The linkage transmission mechanism can be a "crank-connecting rod" structure, converting the movement of the handle 7 into the linear sliding of the opening and closing member 5 to achieve the opening and closing of the sampling port. An adhesive strip can be embedded on the edge of the opening and closing member 5, which, when closed, presses against the sampling tube 8 to seal and prevent soil leakage. Alternatively, the opening and closing member 5 can be an electromagnetic valve, controlled by a controller.
[0049] Based on the above embodiments, in another embodiment of this utility model, a miniature vibration motor is provided inside the sampling port. This configuration activates vibration upon insertion, causing soil particles to loosen and enter the sampling port, making it particularly suitable for clayey soils or compacted soil layers.
[0050] Based on the above embodiments, in another embodiment of the present invention, such as Figure 1 and Figure 2The screw-in part 9 is equipped with a pressure sensor 10, and the support positioning mechanism 1 is equipped with an audible and visual alarm 11. The pressure sensor 10 is communicatively connected to the audible and visual alarm 11, and the audible and visual alarm 11 displays different warning colors according to different pressure signals received.
[0051] The pressure sensor 10 is embedded in the side wall of the screw-in section 9, 8 cm from the bottom. Its sensing surface is flush with the inner wall, directly sensing the radial pressure of the soil on the pipe wall (reflecting the compaction). When the soil compaction changes, causing a change in the lateral pressure of the outer pipe, the pressure sensor 10 is deformed and detected, and the electrical signal control unit displays the pressure in real time. With this setup, when the drill bit of the screw-in section 9 screws into the soil, the pressure sensor 10 monitors the change in drill bit resistance in real time (sampling frequency 100Hz); when the drill bit penetrates the hard soil layer (such as clay layer) and enters the target soft soil layer (such as sand layer), the resistance changes abruptly. When the resistance drops by more than 15% (soft soil layer), the audible and visual alarm 11 (302) triggers a green light; when the resistance increases by more than 30% (hard layer), the audible and visual alarm 11 (302) triggers a red light, indicating to the operator that a new soil layer has been reached. This achieves dual threshold triggering and avoids misjudgment.
[0052] Based on the above embodiments, in another embodiment of the present invention, such as Figure 1 The supporting positioning mechanism 1 is equipped with a base 13. This configuration ensures the stability of the soil sampling device during operation.
[0053] The sampling mechanism 2 is equipped with a piston assembly 14, which allows operators to easily eject the sampled soil from the sampling tube 8. By simply operating the piston rod, the soil sample can be ejected completely and quickly, avoiding the sample spillage and residue problems that may occur when manually pouring out samples. This significantly improves sample retrieval efficiency, especially when multiple samples need to be processed quickly after stratified sampling. Furthermore, sample retrieval can be completed without the need for additional tools or complex operations, reducing the workload of operators and minimizing the time the sample is exposed to the outside environment, effectively preventing contamination from external factors and further improving the overall quality of the sampling work.
[0054] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.
Claims
1. A soil sampling device, characterized in that, It includes a support positioning mechanism and a sampling mechanism. The support positioning mechanism is sleeved outside the sampling mechanism. The sampling mechanism can move along the axial direction of the support positioning mechanism. The outer peripheral surface of the support positioning mechanism is provided with a scale. The support positioning mechanism is provided with a positioning viewing window. The sampling mechanism is provided with a sampling port. The sampling port is provided with an opening and closing component.
2. The soil sampling device according to claim 1, characterized in that, The opening and closing element is a sliding or flip-up baffle.
3. The soil sampling device according to claim 2, characterized in that, The sampling port is located on the side of the sampling mechanism, and the edge of the sampling port is provided with serrated barbs.
4. The soil sampling device according to claim 3, characterized in that, The inner wall of the sampling mechanism is provided with an inclined guide groove, and the uppermost end of the guide groove is located at the sampling port.
5. The soil sampling device according to any one of claims 1 to 4, characterized in that, The sampling mechanism includes a handle at the top, a sampling tube in the middle, and a screw-in part at the bottom.
6. The soil sampling device according to claim 5, characterized in that, The sampling tube is composed of multiple tube segments of predetermined length. The bottom ends of each tube segment are closed to form a sampling space, and each segment is equipped with a sampling port and an opening / closing device.
7. The soil sampling device according to claim 6, characterized in that, The handle is connected to the opening and closing component via a linkage transmission mechanism. When the handle is pressed down, the linkage transmission mechanism pushes the opening and closing component to slide open. When the handle is lifted up, the linkage transmission mechanism pulls the opening and closing component to slide close.
8. The soil sampling device according to any one of claims 1 to 4, characterized in that, A miniature vibration motor is installed inside the sampling port.
9. The soil sampling device according to claim 5, characterized in that, The screw-in part is equipped with a pressure sensor, and the support positioning mechanism is equipped with an audible and visual alarm. The pressure sensor is communicatively connected to the audible and visual alarm, and the audible and visual alarm displays different warning colors according to different pressure signals received.
10. The soil sampling device according to claim 9, characterized in that, The support and positioning mechanism is equipped with a base.