A high-standard farmland construction soil sampling device
By installing a sliding plate and a soil-breaking disc inside the sampling tube, and using a motor and an electric push rod to control the opening and closing of the soil-breaking disc, the problem of surface soil contamination in existing devices is solved, and high-accuracy deep soil collection and sealed storage are achieved.
Patent Information
- Application Number
- CN202521412197.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-07-07
- Publication Date
- 2026-07-24
- Estimated Expiration
- 2035-07-07
AI Technical Summary
Existing soil sampling devices are prone to mixing with topsoil when collecting deep soil samples, which affects the accuracy of the sampling.
A sampling tube with a sliding plate and a soil-breaking disc is used. The sampling tube is rotated by a motor and the opening and closing of the soil-breaking disc is controlled by an electric push rod, ensuring that only deep soil is collected and preventing soil loss through the sealing structure of the soil-breaking disc after sampling.
It improves the accuracy of soil sampling, prevents topsoil from entering the sampling tube, and ensures the integrity of deep soil samples and the airtightness of the sampling device.
Smart Images

Figure CN224552743U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of soil sampling, and more specifically, it relates to a soil sampling device for high-standard farmland construction. Background Technology
[0002] In the construction of high-standard farmland, soil sampling is a key step in obtaining information on soil physicochemical properties, fertility status, and pollution levels, which directly affects the scientific nature of farmland planning, improvement measures, and precision fertilization.
[0003] The patent with publication number CN221350610U discloses a soil sampling device for high-standard farmland construction, which includes a sampling tube. A pre-installed tube is slidably inserted inside the sampling tube. The sliding direction of the pre-installed tube is parallel to the length direction of the sampling tube. The outer wall of the pre-installed tube abuts against the inner wall of the sampling tube. A hand handle is detachably connected to the sampling tube. The hand handle is provided with an adjustment component for adjusting the sliding direction of the pre-installed tube toward or away from the sampling tube.
[0004] The soil sampling device described above can collect soil samples at a specific depth, and it is not easy to mix with topsoil, which helps to ensure the accuracy of the sampling. However, after the topsoil is collected, the pre-filled cylinder containing the topsoil needs to be moved into the hand handle by rotating the screw. At this time, the loose topsoil in the pre-filled cylinder will fall onto the surface of the deep soil. When the deep soil is collected, the topsoil will be collected, which affects the accuracy of the sampling.
[0005] Therefore, a new solution is needed to address this problem. Utility Model Content
[0006] To address the shortcomings of existing technologies, the purpose of this utility model is to provide a high-standard farmland construction soil sampling device that can prevent topsoil from entering the sampling tube during soil sampling, and will no longer prevent soil from entering the sampling tube when it reaches the designated position. It can also seal the sampling tube after sampling, thereby greatly improving the sampling accuracy.
[0007] The above-mentioned technical objective of this utility model is achieved through the following technical solution: a soil sampling device for high-standard farmland construction includes a sampling cylinder, a groove is provided inside the sampling cylinder, a plurality of sliding plates are slidably connected in the groove, and soil breaking pieces are fixedly connected on the sliding plates. The soil breaking pieces have elastic deformation capability. When the plurality of soil breaking pieces are in a natural state, two adjacent soil breaking pieces are in contact with each other. The sampling cylinder is provided with a first driving component for driving the soil breaking pieces to separate, and a second driving component for driving the sampling cylinder to rotate.
[0008] The present invention is further configured such that: the driving component includes a plurality of electric push rods fixedly connected inside the sampling tube, a connecting ring fixedly connected to the telescopic ends of the plurality of electric push rods, and a plurality of connecting rods fixedly connected to the connecting ring, wherein the other ends of the plurality of connecting rods are respectively fixedly connected to a plurality of sliding plates.
[0009] The present invention is further configured such that: the second driving component includes a rotating cover rotatably connected to the sampling tube, a handle fixedly connected to the rotating cover, and a motor fixedly connected inside the rotating cover, wherein the rotating shaft of the motor is fixedly connected to the sampling tube.
[0010] The present invention is further configured such that an elastic plate is fixedly connected to the inner side of each of the aforementioned soil-breaking plates.
[0011] The present invention is further configured such that magnets are fixedly connected to both sides of the soil-breaking plate, and the adjacent magnets attract each other when two adjacent soil-breaking plates are in contact with each other.
[0012] The present invention is further configured such that the rotating cover has several through holes.
[0013] In summary, this utility model has the following beneficial effects: During soil sampling, the sampling tube is rotated by a motor, and then the handle is pressed down to drive the sampling tube into the soil. At this time, several soil-breaking blades are in a closed state and will not collect surface soil. When the sampling tube reaches the required sampling position, the electric push rod retracts to make the soil-breaking blades move away from each other. Then, the motor is started again and pressed down to collect only deep soil. Then, the electric push rod extends to make the soil-breaking blades come together. At this time, only deep soil is in the sampling tube, which greatly improves the sampling accuracy. Attached Figure Description
[0014] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 A cross-sectional view of this utility model Figure 1 ; Figure 3 A cross-sectional view of this utility model Figure 2 ; Figure 4 This is a partial sectional view of the present invention.
[0015] In the diagram: 1. Sampling tube; 2. Groove; 3. Sliding plate; 4. Soil-breaking blade; 5. Electric push rod; 6. Connecting ring; 7. Connecting rod; 8. Rotating cover; 9. Handle; 10. Motor; 11. Elastic plate; 12. Magnet; 13. Through hole. Detailed Implementation
[0016] The present invention will now be described in detail with reference to the accompanying drawings and embodiments.
[0017] A soil sampling device for high-standard farmland construction, such as Figures 1-4 As shown, the sample includes a sampling cylinder 1, with a groove 2 inside the sampling cylinder 1. Several sliding plates 3 are slidably connected inside the groove 2, which can push out the soil that has entered the groove 2. Soil-breaking plates 4 are fixedly connected to the sliding plates 3. The soil-breaking plates 4 have elastic deformation capabilities. When the soil-breaking plates 4 are in their natural state, adjacent soil-breaking plates 4 stick together. When the soil-breaking plates 4 are sticking together, they can abut against each other and are not easy to sink inward. The sampling cylinder 1 is provided with a first driving component for driving the soil-breaking plates 4 to separate. The sampling cylinder 1 is provided with a second driving component for driving the sampling cylinder 1 to rotate. The first driving component includes several electric push rods 5 fixedly connected inside the sampling cylinder 1, a connecting ring 6 fixedly connected to the telescopic end of several electric push rods 5, and several connecting rods 7 fixedly connected to the connecting ring 6. The other end of several connecting rods 7 is fixedly connected to several sliding plates 3 respectively. The second driving component includes a rotating cover 8 rotatably connected to the sampling cylinder 1, a handle 9 fixedly connected to the rotating cover 8, and a motor 10 fixedly connected inside the rotating cover 8. The rotating shaft of the motor 10 is fixedly connected to the sampling cylinder 1.
[0018] like Figures 1-4 As shown, when sampling soil, first grasp the handle 9, then start the motor 10. The rotating shaft of the motor 10 will drive the sampling tube 1 and the soil breaking blade 4 to rotate. Then, align the soil breaking blade 4 with the soil to be sampled and make the soil breaking blade 4 contact the soil. Next, press down the handle 9 and the soil breaking blade 4 will break the soil, allowing the sampling tube 1 to enter the soil. At this time, the opening of the sampling tube 1 is blocked by the soil breaking blade 4 and cannot enter the surface soil. When the opening of the sampling tube 1 reaches the sampling position, turn off the motor 10 and start the electric push rod 5 to retract. The electric push rod 5 will drive the connecting ring 6, connecting rod 7 and sliding plate 3 to move to one side of the handle 9. At this time, each soil breaking blade 4 will also be pulled and separated by each sliding plate 3. Then, each soil breaking blade 4 will be squeezed by the inner wall of the groove 2 of the sampling tube 1 and deformed into the groove 2. At this time, press down the handle 9 and turn on the motor 10 again to drive the sampling tube 1 to rotate, so that the deep soil can be collected.
[0019] like Figures 1-4 As shown, after collection is complete, the motor 10 is turned off and the electric push rod 5 is extended. The electric push rod 5 will push each soil-breaking piece 4 out of the groove 2. At the same time, the handle 9 is pulled to remove the sampling tube 1 from the soil. Each soil-breaking piece 4 will not be blocked by the deep soil and will begin to deform and reset, eventually sticking together to seal the sampling tube 1. This can prevent the deep soil in the sampling tube 1 from falling out and prevent external soil from entering the sampling tube 1. After the sampling tube 1 is completely removed, the electric push rod 5 is activated to retract and drive each soil-breaking piece 4 to separate, so that the deep soil in the sampling tube 1 can be removed.
[0020] like Figure 3As shown, several soil-breaking blades 4 are fixedly connected to the inner side of an elastic plate 11. When entering the groove 2, the elastic plate 11 can enter the groove 2 along with the soil-breaking blade 4. When the soil-breaking blade 4 extends out of the groove 2, the elastic plate 11 will first reset to assist the soil-breaking blade 4 in resetting to the normal state, thereby extending the service life of the soil-breaking blade 4.
[0021] like Figure 3 As shown, magnets 12 are fixedly connected to both sides of the soil breaking plate 4. When two adjacent soil breaking plates 4 are pressed together, the two adjacent magnets 12 attract each other. This can improve the tightness between the two adjacent soil breaking plates 4 when they are pressed together to break the soil, and prevent the surface soil from entering the sampling tube 1 from the gap between the two soil breaking plates 4. It is also more convenient to use. When the two soil breaking plates 4 are pressed together, the two magnets 12 will automatically attract each other.
[0022] like Figures 1-2 As shown, the rotating cover 8 has several through holes 13, which can improve the heat dissipation efficiency of the motor 10 and prevent the motor 10 from overheating and being damaged.
[0023] Working principle: When sampling soil, first grasp handle 9, then start motor 10. The rotation of motor 10's rotating shaft will drive the sampling cylinder 1 and the soil-breaking blade 4 to rotate. Then, align the soil-breaking blade 4 with the soil to be sampled and make it contact the soil. Next, press down on handle 9, and the soil-breaking blade 4 will break the soil, allowing the sampling cylinder 1 to enter the soil. At this time, the opening of the sampling cylinder 1 is blocked by the soil-breaking blade 4 and cannot enter the surface soil. When the opening of the sampling cylinder 1 reaches the sampling position, turn off motor 10 and start the electric push rod 5 to retract. The electric push rod 5 will drive the connecting ring 6, connecting rod 7, and sliding plate 3 to move towards handle 9. At this time, each soil-breaking blade 4 will also be pulled apart by the sliding plates 3. Subsequently, each soil-breaking blade 4 will be pressed against the inner wall of the groove 2 of the sampling cylinder 1. The soil is squeezed and deformed, entering the groove 2. At this time, press down the handle 9 and turn on the motor 10 again to drive the sampling tube 1 to rotate, so that the deep soil can be collected. After collection is completed, turn off the motor 10 and start the electric push rod 5 to extend. The electric push rod 5 will push each soil breaking piece 4 out of the groove 2. At the same time, pull the handle 9 to take the sampling tube 1 out of the soil. Each soil breaking piece 4 will not be blocked by the deep soil and will begin to deform and reset, eventually sticking together to seal the sampling tube 1. This can prevent the deep soil in the sampling tube 1 from falling out and prevent external soil from entering the sampling tube 1. After the sampling tube 1 is completely taken out, start the electric push rod 5 to retract and drive the soil breaking pieces 4 to separate, so that the deep soil in the sampling tube 1 can be taken out for testing, which greatly improves the sampling accuracy.
[0024] The above description is merely a preferred embodiment of this utility model. The protection scope of this utility model is not limited to the above embodiments. All technical solutions falling within the scope of this utility model's concept are protected. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of this utility model should also be considered within the protection scope of this utility model.
Claims
1. A soil sampling device for high-standard farmland construction, comprising a sampling tube (1), characterized in that: The sampling tube (1) has a groove (2) inside, and several sliding plates (3) are slidably connected inside the groove (2). Soil-breaking pieces (4) are fixedly connected to the sliding plates (3). The soil-breaking pieces (4) have elastic deformation capability. When several soil-breaking pieces (4) are in a natural state, two adjacent soil-breaking pieces (4) are in contact with each other. The sampling tube (1) is provided with a driving component one for driving the soil-breaking pieces (4) to separate, and the sampling tube (1) is provided with a driving component two for driving the sampling tube (1) to rotate.
2. The soil sampling device for high-standard farmland construction according to claim 1, characterized in that: The driving component includes several electric push rods (5) fixedly connected inside the sampling tube (1), a connecting ring (6) fixedly connected to the telescopic ends of the several electric push rods (5), and several connecting rods (7) fixedly connected on the connecting ring (6). The other ends of the several connecting rods (7) are respectively fixedly connected to several sliding plates (3).
3. The soil sampling device for high-standard farmland construction according to claim 1, characterized in that: The second driving component includes a rotating cover (8) rotatably connected to the sampling tube (1), a handle (9) fixedly connected to the rotating cover (8), and a motor (10) fixedly connected inside the rotating cover (8). The rotating shaft of the motor (10) is fixedly connected to the sampling tube (1).
4. The soil sampling device for high-standard farmland construction according to claim 1, characterized in that: An elastic plate (11) is fixedly connected to the inner side of several of the aforementioned soil-breaking plates (4).
5. A soil sampling device for high-standard farmland construction according to claim 1, characterized in that: Magnets (12) are fixedly connected to both sides of the soil-breaking plate (4). When two adjacent soil-breaking plates (4) are in contact with each other, the two adjacent magnets (12) attract each other.
6. A soil sampling device for high-standard farmland construction according to claim 3, characterized in that: The rotating cover (8) has several through holes (13).
Citation Information
Patent Citations
High-standard farmland construction soil sampling device
CN221350610U