A multi-stage soil sampling device for tilling

Abstract

The utility model relates to the field of soil sampling discloses a multistage soil sampling device for ploughing, including moving car, the top fixedly connected with the fixed frame of moving car, the top fixedly connected with the drive motor of fixed frame, the output fixedly connected with screw rod of drive motor, the outer wall screw thread connection has the screw block of screw rod, the outer wall of screw block is provided with the lifting plate, the top fixedly connected with motor no.

Description

Technical Field

[0001] This utility model relates to the field of soil sampling, and in particular to a multi-stage soil sampling device for arable land. Background Technology

[0002] Soil sampling of arable land is mainly to understand the specific conditions of the soil in order to better manage and utilize land resources. Soil sampling can determine the nutrient content in the soil, such as nitrogen, phosphorus, and potassium, as well as the organic matter content, thereby assessing the soil fertility level. This helps to apply fertilizer rationally and improve crop yield and quality. Soil sampling is a basic task in agricultural production and land management, and it is of great significance for improving agricultural production efficiency, protecting the environment, and achieving the sustainable use of land resources.

[0003] A search revealed that Chinese Patent Publication No. CN221898825U discloses a soil stratification sampling device for arable land quality testing. The device can be fixed by a fixing mechanism, and a protective mechanism can stably install and protect the hydraulic cylinder. Driven by the hydraulic cylinder, the drilling mechanism can adjust the depth of soil insertion. Furthermore, a connecting mechanism allows for the installation and disassembly of the drilling mechanism, facilitating the cleaning of the soil sampled from the drilling mechanism's interior and improving the device's practicality.

[0004] In the above technical solution, the depth of soil insertion can be adjusted during sampling by coordinating the fixing mechanism and the protective mechanism, and the rotating machine can be easily disassembled and assembled. However, soil fertility may vary greatly in different soil layers and different plots. If the sampling is not graded and is simply performed on the surface or at a certain depth, the obtained soil nutrient data cannot fully represent the fertility status of the entire plot, reducing sampling efficiency and reliability. Therefore, a multi-stage soil sampling device for arable land is proposed to solve the above problems. Summary of the Invention

[0005] To overcome the above deficiencies, this utility model provides a multi-level soil sampling device for arable land, which aims to improve the problem that existing multi-level soil sampling devices for arable land lack the ability to perform graded sampling at the same depth in a single sampling operation, resulting in reduced sampling efficiency and reliability.

[0006] To achieve the above objectives, this utility model adopts the following technical solution: a multi-stage soil sampling device for cultivated land, comprising a mobile vehicle, a fixed frame fixedly connected to the top of the mobile vehicle, a drive motor fixedly connected to the top of the fixed frame, a screw fixedly connected to the output end of the drive motor, a threaded block threadedly connected to the outer wall of the screw, a lifting plate provided on the outer wall of the threaded block, a motor one fixedly connected to the top of the lifting plate via a bracket, a drive wheel fixedly connected to the output end of the motor one via a rotating shaft, a sampling cylinder rotatably connected to the inner wall of the lifting plate, a driven wheel fixedly connected to the outer wall of the top of the sampling cylinder, a soil-breaking block fixedly connected to the bottom end of the sampling cylinder, an opening on the outer wall of the sampling cylinder, a rotating rod rotatably connected to the inner wall of the sampling cylinder, a spiral blade fixedly connected to the outer wall of the rotating rod, a transmission belt driven by a pulley connected to the outer wall of the rotating rod, a motor two fixedly connected to the outer wall of the sampling cylinder via a horizontal plate, a partition fixedly connected to the inner wall of the sampling cylinder, and a sealing plug provided on the inner wall of the sampling cylinder.

[0007] As a further description of the above technical solution: The outer wall of the threaded block is adapted to the inner wall of the fixed frame, and the driving wheel meshes with the driven wheel.

[0008] As a further description of the above technical solution: The soil-breaking block is arranged in a V-shape, and the rotating rod passes through the sampling tube.

[0009] As a further description of the above technical solution: The opening is fitted onto the outer wall of the spiral blade, and the interior of the sampling tube is a cavity.

[0010] As a further description of the above technical solution: The outer wall of the threaded block is also rotatably connected to the outer wall of the lifting plate via a rotating shaft.

[0011] As a further description of the above technical solution: A fixing plate is fixedly connected to the outer wall of the threaded block, and an electric push rod is fixedly connected to the top of the fixing plate. A slide block is hinged to the output end of the electric push rod, and a sliding groove is provided on the top of the lifting plate.

[0012] As a further description of the above technical solution: The chute is located on the top of the lifting plate on the left side with the central axis as the axis of symmetry.

[0013] As a further description of the above technical solution: The outer wall of the slide block is slidably connected to the inner wall of the slide groove.

[0014] This utility model has the following beneficial effects: 1. In this utility model, the screw is driven by a drive motor to lift the sampling cylinder, and the sampling cylinder is screwed into the soil by gear meshing. The internal spiral blades are driven by a belt pulley to collect samples in layers. The partition separates different depths, and the sealing plug ensures the integrity of the sample. It can efficiently and accurately obtain soil samples at different depths in the same area. It is easy to operate, improves sampling efficiency and reliability, and facilitates soil analysis.

[0015] 2. In this utility model, the lifting plate can be driven to rotate around the center of the threaded block by the electric push rod mechanism, so that the vertical sampling cylinder is automatically tilted so that the discharge hole faces downward. With the rotation function, the sample is discharged in an directional manner, ensuring that soil at different depths is separated from each other during discharge and is not mixed. This achieves independent and accurate discharge of layered samples, avoids mixing and contamination, and improves the accuracy and convenience of soil stratification sampling. Attached Figure Description

[0016] Figure 1 This is a side view of the main structure of a multi-stage soil sampling device for arable land proposed in this utility model; Figure 2 This is a rear view schematic diagram of the main structure of a multi-stage soil sampling device for arable land proposed in this utility model; Figure 3 This is a partial structural cross-sectional view of a multi-stage soil sampling device for arable land proposed in this utility model; Figure 4 This utility model proposes a multi-stage soil sampling device for arable land. Figure 3 Enlarged view of region A in the middle; Figure 5 This utility model proposes a multi-stage soil sampling device for arable land. Figure 3 Enlarged schematic diagram of region B in the middle.

[0017] Legend: 1. Mobile vehicle; 2. Fixed frame; 3. Drive motor; 4. Screw; 5. Threaded block; 6. Lifting plate; 7. Motor 1; 8. Drive wheel; 9. Driven wheel; 10. Sampling cylinder; 11. Soil-breaking block; 12. Opening; 13. Rotating rod; 14. Spiral blade; 15. Transmission belt; 16. Motor 2; 17. Partition plate; 18. Sealing plug; 19. Fixed plate; 20. Electric push rod; 21. Slide groove; 22. Slide seat. Detailed Implementation

[0018] 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.

[0019] Reference Figures 1-3 This utility model provides an embodiment of a multi-stage soil sampling device for arable land, comprising a mobile vehicle 1. A handle is provided on the left side of the mobile vehicle 1 for easy movement. Four sets of self-locking outward-facing wheels in a rectangular array are provided at the bottom of the mobile vehicle 1 to move the entire sampling device to the desired position. A fixed frame 2 is fixedly connected to the top of the mobile vehicle 1, and a drive motor 3 is fixedly connected to the top of the fixed frame 2. A screw 4 is fixedly connected to the output end of the drive motor 3. A threaded block 5 is threadedly connected to the outer wall of the screw 4. The outer wall of the threaded block 5 is adapted to the inner wall of the fixed frame 2. A lifting plate 6 is provided on the outer wall of the threaded block 5, and the outer wall of the lifting plate 6 is also rotatably connected via a rotating shaft. A set of guide rods is provided on the surface of the mobile vehicle 1, and the guide rods are connected to the screw... The rod 4 is symmetrically arranged and connected to two sets of threaded blocks 5 on both sides of the lifting plate 6. The second set of threaded blocks 5 can slide and connect with the guide rod. The top of the lifting plate 6 is fixedly connected to the motor 7 via a bracket. The output end of the motor 7 is fixedly connected to the drive wheel 8 via a rotating shaft. The inner wall of the lifting plate 6 is rotatably connected to the sampling cylinder 10. The inside of the sampling cylinder 10 is hollow. The outer wall of the top of the sampling cylinder 10 is fixedly connected to the driven wheel 9. The drive wheel 8 and the driven wheel 9 mesh with each other. The drive wheel 8 and the driven wheel 9 are set as gears. The motor 7 can provide a screwing force to the sampling cylinder 10 when it penetrates into the soil through the meshing of the drive and driven gears. The bottom end of the sampling cylinder 10 is fixedly connected to the soil breaking block 11. The outer wall of the sampling cylinder 10 has an opening 12 for soil to enter.

[0020] Reference Figures 2-4 A rotating rod 13 is rotatably connected to the inner wall of the sampling cylinder 10, and a spiral blade 14 is fixedly connected to the outer wall of the rotating rod 13. Several sets of rotating rods 13 and spiral blades 14 are arranged, and these sets of rotating rods 13 and spiral blades 14 are distributed at equal distances on the surface of the sampling cylinder 10. Each set of spiral blades 14 has an opening 12 on its outer side, which facilitates sampling of soil at different depths in the same area during a single operation. The opening 12 is fitted onto the outer wall of the spiral blade 14. A transmission belt 15 is connected to the outer wall of the rotating rod 13 via a pulley. A motor 16 is fixedly connected to the outer wall of the sampling cylinder 10 via a horizontal plate. Several sets of pulleys and transmission belts 15 are provided. The output end of motor 2 16 is also fixedly connected to the transmission wheel through a rotating shaft. The transmission wheel is connected to the transmission belt 15 for transmission, which facilitates the rotation of multiple sets of rotating rods 13. Protective covers are provided on the outside of motor 2 16, pulleys and transmission belts 15 to prevent soil from interfering with them. A partition 17 is fixedly connected to the inner wall of sampling cylinder 10. A sealing plug 18 is provided on the inner wall of sampling cylinder 10. Several sets of partitions 17 are provided. A discharge hole is opened on the outer wall of sampling cylinder 10 near partition 17 for discharging material. The discharge hole is sealed by the sealing plug 18.

[0021] Reference Figure 5A fixing plate 19 is fixedly connected to the outer wall of the threaded block 5. An electric push rod 20 is fixedly connected to the top of the fixing plate 19. A slide block 22 is hinged to the output end of the electric push rod 20. A slide groove 21 is opened on the top of the lifting plate 6 on the left side with the central axis as the axis of symmetry. The outer wall of the slide block 22 is slidably connected to the inner wall of the slide groove 21. The two sets of threaded blocks 5 are equipped with a fixing plate 19, an electric push rod 20, a slide block 22 and a slide groove 21. When the two sets of electric push rods 20 are opened at the same time, they can drive the lifting plate 6 to rotate around the center point of the threaded block 5, causing the sampling cylinder 10 to tilt. With the help of the motor 7, the sampling cylinder 10 is rotated so that the discharge hole is facing downward. When the soil at different depths is discharged, the sampling cylinder 10 switches from a vertical state to a horizontal state, so that the soil does not interfere with each other.

[0022] Working principle: First, by using the handle on the left side of the mobile vehicle 1, the four sets of self-locking outward wheels at the bottom are used to move the entire device to the desired sampling location in the cultivated land. Then, the wheel fixing device is locked, and the drive motor 3 is started. Its output end drives the screw 4 to rotate. The threaded block 5, which is threaded to the screw 4, moves up and down along the screw 4 under the guidance of the fixing frame 2. With the help of the guide rod, the lifting plate 6 is raised and lowered vertically smoothly. When the lifting plate 6 continues to descend, the first motor 7 is started. The driving wheel 8 at the output end of the first motor 7 meshes with the driven wheel 9, driving the sampling cylinder 10 to rotate. The soil breaking block 11 at the bottom of the sampling cylinder 10 breaks the soil, allowing it to smoothly spiral into the soil. As the sampling cylinder 10 penetrates deeper into the soil, the second motor 16 is started. The transmission wheel at the output end of the second motor 16 drives the rotating rod 13 and the spiral blade 14 to rotate through the transmission belt 15. Since each set of spiral blades 14 has an opening 12 on its exterior, the second motor 16 is started. Furthermore, the rotating rod 13 and the spiral blade 14 are equidistantly distributed on the surface of the sampling cylinder 10. Therefore, when the sampling cylinder 10 is screwed into the soil, soil at different depths enters the interior of the sampling cylinder 10 through the corresponding opening 12 and is pushed to the corresponding area by the spiral blade 14. At the same time, the partition 17 divides the interior of the sampling cylinder 10, and with the help of the sealing plug 18, the soil at different depths is collected in layers. After the soil sampling is completed, the two sets of electric push rods 20 are started. The output end of the electric push rod 20 pushes the slide block 22 to slide in the slide groove 21, which drives the lifting plate 6 to rotate around the center point of the threaded block 5, so that the sampling cylinder 10 changes from a vertical state to a horizontal state. At this time, the motor 7 is started again to drive the sampling cylinder 10 to rotate, so that the discharge hole is facing downward and the sealing plug 18 is opened. Soil at different depths is discharged from their respective discharge holes under the action of gravity, avoiding interference between soils and completing the multi-stage soil sampling work.

[0023] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A multi-stage soil sampling device for arable land, comprising a mobile vehicle (1), wherein a fixed frame (2) is fixedly connected to the top of the mobile vehicle (1), characterized in that: A drive motor (3) is fixedly connected to the top of the fixed frame (2). A screw (4) is fixedly connected to the output end of the drive motor (3). A threaded block (5) is threadedly connected to the outer wall of the screw (4). A lifting plate (6) is provided on the outer wall of the threaded block (5). A motor (7) is fixedly connected to the top of the lifting plate (6) through a bracket. A drive wheel (8) is fixedly connected to the output end of the motor (7) through a rotating shaft. A sampling cylinder (10) is rotatably connected to the inner wall of the lifting plate (6). A driven wheel (9) is fixedly connected to the outer wall of the top of the sampling cylinder (10). A soil-breaking block (11) is fixedly connected to the bottom end of the sampling tube (10). An opening (12) is provided on the outer wall of the sampling tube (10). A rotating rod (13) is rotatably connected to the inner wall of the sampling tube (10). A spiral blade (14) is fixedly connected to the outer wall of the rotating rod (13). A transmission belt (15) is connected to the outer wall of the rotating rod (13) via a pulley. A motor (16) is fixedly connected to the outer wall of the sampling tube (10) via a horizontal plate. A partition (17) is fixedly connected to the inner wall of the sampling tube (10). A sealing plug (18) is provided on the inner wall of the sampling tube (10).

2. The multi-stage soil sampling device for arable land according to claim 1, characterized in that: The outer wall of the threaded block (5) is adapted to the inner wall of the fixed frame (2), and the driving wheel (8) meshes with the driven wheel (9).

3. The multi-stage soil sampling device for arable land according to claim 1, characterized in that: The soil-breaking block (11) is arranged in a V-shape, and the rotating rod (13) passes through the sampling tube (10).

4. The multi-stage soil sampling device for arable land according to claim 1, characterized in that: The opening (12) is fitted on the outer wall of the spiral blade (14), and the inside of the sampling tube (10) is a cavity.

5. A multi-stage soil sampling device for arable land according to claim 1, characterized in that: The outer wall of the threaded block (5) is also connected to the outer wall of the lifting plate (6) by a rotating shaft.

6. A multi-stage soil sampling device for arable land according to claim 1, characterized in that: The outer wall of the threaded block (5) is fixedly connected to a fixing plate (19), the top of the fixing plate (19) is fixedly connected to an electric push rod (20), the output end of the electric push rod (20) is hinged to a slide block (22), and the top of the lifting plate (6) is provided with a slide groove (21).

7. A multi-stage soil sampling device for arable land according to claim 6, characterized in that: The chute (21) is located on the top of the lifting plate (6) on the left side with the central axis as the axis of symmetry.

8. A multi-stage soil sampling device for arable land according to claim 6, characterized in that: The outer wall of the slide block (22) is slidably connected to the inner wall of the slide groove (21).

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