Rapid soil sampling device capable of being applied to prevention and treatment of Huanglongbing
By using an inclined triangular elastic sheet and an adjustable-depth sampling tube in the soil sampling device, the problems of soil shedding and depth control were solved, enabling rapid and accurate soil sampling.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-25
- Publication Date
- 2026-03-10
AI Technical Summary
Existing soil sampling devices are prone to soil erosion when sampling in loose, dry or sandy soils, and the sampling depth is difficult to control precisely, resulting in slow sampling speed.
A sampling cylinder with an inwardly tilted triangular elastic sheet and an adjustable sampling depth was designed, which, combined with scale lines and a rack and pinion structure, enables rapid sampling and precise depth control.
It enables rapid sampling in loose or dry soil, avoids soil erosion, and allows for precise control of sampling depth, thereby improving sampling efficiency and extending the lifespan of the device.
Smart Images

Figure CN223985880U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of soil sampling in agricultural production, and specifically relates to a rapid soil sampling device that can be applied to the prevention and control of Huanglongbing (HLB). Background Technology
[0002] Analyzing the soil around the plant roots has multiple benefits in the management of Huanglongbing (HLB). Although HLB is primarily caused by bacteria in the phloem, soil conditions can significantly impact tree health and its resistance to the disease. Here are some key benefits:
[0003] Soil analysis can help determine whether the nutrients in the soil are balanced. Appropriate nutrient levels (such as nitrogen, phosphorus, and potassium) are crucial for maintaining tree health. Healthy trees are more likely to resist or mitigate the effects of diseases.
[0004] The analysis results can reveal the physical properties of the soil, such as texture, compaction, and aeration. Good soil structure helps promote root growth and prevents problems such as root rot caused by waterlogging, which indirectly enhances the tree's resistance to Huanglongbing (HLB).
[0005] A suitable soil pH level is crucial for nutrient availability and plant absorption. Adjusting the pH to a range suitable for citrus growth can improve the overall health of the tree and make it more resistant to disease.
[0006] Soil analysis can also identify the presence of beneficial microorganisms, such as certain disease-resistant strains or growth-promoting rhizosphere bacteria (PGPR). These microorganisms can help suppress pathogens or directly enhance the tree's immune system.
[0007] In conclusion, although soil analysis is not directly used to treat Huanglongbing (HLB), it provides important background information that helps create environmental conditions conducive to tree health and disease resistance. This plays an indispensable role in the long-term management and prevention of HLB.
[0008] Existing soil sampling devices are slow to operate, mainly because:
[0009] On the one hand, when taking soil samples, we may encounter situations where the soil is loose, dry, or the sampling point is sandy soil. Since the existing soil sampling device has an open bottom design, the soil is prone to falling out of the sampler during the process of extracting the soil sampling device after sampling the above types of soil. Therefore, we can only slowly extract the soil sampling device to avoid the soil falling out of the sampler, which results in a long sampling time.
[0010] On the other hand, when conducting soil sampling, the soil sampling device needs to be inserted into the soil to a certain depth in order to obtain soil samples at a specific depth. Although the existing soil sampling devices have scale markings on their outer side to allow staff to determine the depth to which the soil sampling device is inserted into the soil, the scale markings cannot be seen by the staff during the sampling process. This requires pausing the sampling process multiple times to bend over and observe the scale markings, resulting in a longer sampling time. Utility Model Content
[0011] The purpose of this invention is to provide a rapid soil sampling device applicable to the prevention and control of Huanglongbing (HLB), thereby solving the problems existing in the background technology. To achieve this purpose, the specific technical solution is as follows:
[0012] A rapid soil sampling device applicable to the prevention and control of Huanglongbing (HLB) has a sampling tube with openings at both ends. The upper end of the tube has a cap with a handle fixed to the top by a threaded installation, and the lower end has several inwardly inclined triangular elastic sheets arranged in a ring inside the opening.
[0013] Furthermore, the outer side of the sampling cylinder is provided with scale lines and a rack. An annular sampling depth adjustment ring with an outwardly convex edge is sleeved on the sampling cylinder and is fixed by the cooperation of teeth on one side of the inner side that can mesh with the rack and fastening bolts on the other side that are set in the threaded hole and can press against the outer side of the sampling cylinder.
[0014] The beneficial effects of this utility model are:
[0015] (1) In this utility model, several inclined triangular elastic sheets are arranged in a ring inside the opening at the lower end of the sampling tube. When the sampling tube is inserted into the soil and then lifted up, the elastic sheets can effectively prevent the soil from falling, so that the sampler can be lifted up quickly without being careful, thus achieving rapid sampling.
[0016] (2) The structure of several inwardly inclined triangular elastic sheets arranged in a ring inside the lower end opening of the sampling tube utilizes the relatively wide lower part of the triangular elastic sheets to compensate for the problem of large gaps between adjacent elastic sheets caused by the ring arrangement, so that the distance between two adjacent elastic sheets is uniform and soil falls off is avoided. On the other hand, the inclined arrangement of the elastic sheets makes the resistance encountered by the sampling tube when it is inserted into the soil for sampling less, without affecting normal soil sampling. On the other hand, the inclined arrangement of the elastic sheets makes the deformation angle of the elastic sheets smaller, thus extending the service life of the device.
[0017] (3) The present invention provides an adjustable sampling depth adjustment ring on the outside of the sampling tube. The position of the sampling depth adjustment ring on the sampler can be adjusted as needed, so that the sampler does not need to observe whether the sampling depth has been reached multiple times during the process of inserting the sampler into the soil. It can be inserted directly to the bottom until the sampling depth adjustment ring touches the ground, thus realizing rapid sampling. Attached Figure Description
[0018] Figure 1 This is a front view of the overall structure of the rapid soil sampling device;
[0019] Figure 2 This is a front view of the internal structure of a rapid soil sampling device;
[0020] Figure 3 This is a schematic diagram of the elastic sheet in an inclined and ring-shaped configuration.
[0021] Figure 4 This is a front view of the overall structure of the rapid soil sampling device after adding graduation lines, racks, and sampling depth adjustment rings;
[0022] Figure 5 This is a front view of the internal structure of the sampling depth adjustment ring;
[0023] The meanings of the symbols in the image are as follows:
[0024] 1. Sampling cylinder, 2. Handle, 3. Cylinder cover, 4. Elastic sheet, 5. Scale line, 6. Rack, 7. Sampling depth adjustment ring, 8. Tooth, 9. Fastening bolt. Detailed Implementation
[0025] Reference Figures 1-5 This embodiment provides a rapid soil sampling device that can be applied to the prevention and control of Huanglongbing (HLB). The sampling tube 1 is open at both ends, and the upper end of the tube is fitted with a tube cap 3 with a handle 2 fixed at the top by a threaded connection. Several inclined inward triangular elastic sheets 4 are arranged in a ring inside the lower end opening.
[0026] When using the device, insert it into the soil and quickly lift it up. Then remove the cap 3. Insert a cylindrical object into the lower opening of the sampling tube 1 and push the soil sample out from the upper opening of the sampling tube 1.
[0027] Because several inwardly tilted triangular elastic sheets are arranged in a ring inside the opening at the lower end of the sampling tube, the elastic sheets can effectively prevent the soil from falling during the process of lifting the sampling tube after it is inserted into the soil. This allows the upper sampler to be lifted directly and quickly without being careful, thus achieving rapid sampling.
[0028] Furthermore, the structure of several inwardly tilted triangular elastic plates arranged in a ring inside the lower opening of the sampling tube utilizes the wider lower part of the triangular elastic plates to compensate for the problem of large gaps between adjacent elastic plates caused by the ring arrangement, making the distance between two adjacent elastic plates uniform and preventing soil from falling off. On the other hand, the tilted arrangement of the elastic plates reduces the resistance encountered by the sampling tube when it is inserted into the soil for sampling, without affecting normal soil sampling. On the other hand, the tilted arrangement of the elastic plates results in a smaller deformation angle of the elastic plates, extending the service life of the device.
[0029] Furthermore, based on the aforementioned structure, the outer side of the sampling cylinder 1 is provided with scale lines 5 and rack 6. An annular sampling depth adjustment ring 7 with an outwardly convex edge is sleeved on the sampling cylinder 1 and is fixed by the cooperation of a tooth 8 provided on one side of the inner side that can mesh with the rack 6 and a fastening bolt 9 provided on the other side in the threaded hole that can press against the outer side of the sampling cylinder 1.
[0030] When using the device, first loosen the fastening bolt 9 so that the sampling depth adjustment ring 7 can move freely on the sampling cylinder 1. Then move the sampling depth adjustment ring 7 so that the bottom surface of its lower convex edge is aligned with the corresponding scale line 5. Then tighten the fastening bolt 9 so that the tooth 8 engages with the rack 6. At this time, the sampling depth adjustment ring 7 is fixed. The operator can insert the sampling device into the soil until the sampling depth adjustment ring 7 is in contact with the ground. At this time, the sampling device is inserted into the soil at the corresponding depth. The remaining operation steps are the same as the usage method of the aforementioned structure.
[0031] Because an adjustable sampling depth adjustment ring is set on the outside of the sampling tube, the position of the sampling depth adjustment ring on the sampler can be adjusted as needed, so that the sampler does not need to be observed many times to see if the sampling depth has been reached during the process of inserting the sampler into the soil. It can be inserted directly to the bottom until the sampling depth adjustment ring touches the ground, thus realizing rapid sampling.
Claims
1. A soil rapid sampling device applicable to the prevention and treatment of Huanglongbing, characterized in that, The sampling cylinder (1) is open at both ends, the upper end is provided with a cylinder cover (3) with a handle (2) fixed by screw thread, and the lower end is provided with a number of triangular elastic lamellas (4) arranged in a ring shape and inclined inward.
2. The soil rapid sampling device applicable to the prevention and treatment of HLB disease according to claim 1, characterized in that, The outer side of the sampling cylinder (1) is provided with scale lines (5) and a rack (6), and a ring-shaped sampling depth adjusting ring (7) with an outer convex edge is sleeved on the sampling cylinder (1) and fixed by the cooperation of the teeth (8) on one side of the inner side, which can engage with the rack (6), and the fastening bolt (9) on the other side, which can abut against the outer side of the sampling cylinder (1) and is arranged in a threaded hole.
Citation Information
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