Soil sampling detection device and detection method

Abstract

The invention belongs to the technical field of soil detection, and particularly relates to a soil sampling detection device and a detection method.The soil sampling detection device comprises a shell, a sampling mechanism is arranged at the upper end of the interior of the shell, the sampling mechanism comprises a motor, the lower end of a motor body is embedded in the upper end of the shell, and an output shaft of the motor is fixedly connected with a first gear. The device is provided with a sampling mechanism, a motor drives a first gear to rotate and then drives a second gear to rotate, so that a spiral telescopic pipe and a slave drill rod drive a main drill rod to rotate and drill into soil, a negative pressure pipe is matched with a fixed pipe and other components, and during rotary sampling, an electric linear sliding rail is used for controlling a sliding plate to open and close an outlet, so that accurate sample feeding to different placement trays is realized; the soil sampling efficiency is improved, samples can be orderly collected in different placing trays respectively, subsequent classification detection is facilitated, sample confusion is effectively avoided, the accuracy and reliability of a detection result are improved, meanwhile, the negative pressure pipe sucks out the soil samples at the upper end in the fixed pipe through negative pressure, and accumulation is avoided.

Description

Technical Field

[0001] This invention relates to the field of soil testing technology, and in particular to a soil sampling and testing device and method. Background Technology

[0002] Soil testing is crucial in agriculture, environment, and engineering, aiding in optimizing planting, monitoring pollution, and designing foundations. However, traditional soil sampling and testing techniques suffer from numerous problems: limited sampling depth, requiring frequent drill rod changes for deep-seated sampling, leading to low efficiency; samples are easily contaminated, such as by mechanical friction altering composition or manual handling introducing impurities; low automation, relying on manual operation and prone to errors; and inconvenient sample management, with labeling easily confused and poor storage conditions affecting test results. Existing improved technologies also suffer from shortcomings such as unstable drill rod connections, lack of sample monitoring, and low equipment integration.

[0003] To address the above problems, this invention proposes a soil sampling and testing device and a testing method. Summary of the Invention

[0004] Based on the problems of existing soil sampling technology, this invention proposes a soil sampling and testing device and a testing method.

[0005] The present invention proposes a soil sampling and testing device, comprising a housing, wherein a sampling mechanism is provided at the upper end of the housing, the sampling mechanism including a motor, the lower end of the motor body being embedded in the upper end of the housing, a gear one being fixedly connected to the output shaft of the motor, a gear two being meshed on the surface of the gear one, a negative pressure tube being rotatably connected to the lower end of the gear two via a bearing, a spiral telescopic tube being fixedly connected to the lower end of the gear two, and a drill rod being fixedly connected to the lower end of the spiral telescopic tube.

[0006] Preferably, one end of the negative pressure tube is fixedly connected to the upper end of the outer shell. The lower end of the inner shell is provided with an extension mechanism. The inner shell is provided with an inner shell. The inner shell is provided with an array of placement trays. Each placement tray has a bearing at its center. A fixing tube is fixedly connected to the inner wall of the bearing. The upper end of the fixing tube is fixedly connected to the lower end of the negative pressure tube.

[0007] Preferably, a groove is provided on one side of the fixed tube, and an outlet communicating with the inner wall of the fixed tube is provided at intervals on the inner wall of the groove. A slide plate adapted to the outlet is arranged in an array on the inner wall of the groove. A limit post is slidably inserted into the body of the slide plate. An electric linear slide rail is provided on the inner wall of the groove. A slider adapted to the slide plate is arranged in an array on the surface of the electric linear slide rail. The surface of the slider is fixedly connected to the side of the slide plate.

[0008] Preferably, the extension mechanism includes a gear bearing disposed at the lower end of the inner shell, the inner ring of the gear bearing being fixedly connected to the lower end of the inner shell, a second motor being disposed on one side of the gear bearing, the body of the second motor being embedded in the outer shell, the output shaft of the second motor being fixedly connected to a helical gear, the surface of the helical gear meshing with the toothed surface of the outer surface of the gear bearing, and a cylinder being disposed below the second motor.

[0009] Preferably, the lower end of the gear bearing is provided with a hanging bracket, and a main drill rod is placed on the surface of each hanging bracket. The lower end of the placement plate located at the bottom inside the inner shell extends to the outside of the inner shell. A sliding groove is formed on the lower surface of the placement plate. The upper end of the main drill rod is interactively connected with the inner wall of the sliding groove. The outer surface of the main drill rod is in contact with one end of the piston rod of the cylinder.

[0010] Preferably, the upper end of the main drill rod is provided with a spiral hole, and the lower end of the main drill rod is fixedly connected with a spiral rod adapted to the spiral hole. The lower end of the secondary drill rod has the same characteristics as the lower end of the main drill rod.

[0011] Preferably, the outer surface of the hanging rack is provided with a silicone pad.

[0012] Preferably, the outer casing has an outlet.

[0013] Preferably, an industrial camera is positioned on the lower surface of the placement tray located at the lowest point inside the inner shell, facing the slide groove.

[0014] The detection method of the soil sampling and testing device described above includes the following specific steps: Step 1: Move the device to the target detection area and fix the device with the support structure at the bottom of the shell to ensure that the device is in a horizontal and stable state. Motor 2 drives the helical gear to rotate, which drives the gear bearing and the hanging frame to rotate. Align the first main drill rod with the bottom of the drill rod. The cylinder pushes the main drill rod to slide along the slide to the docking position. The industrial camera monitors the alignment of the helical hole and the helical rod in real time. The motor starts and drives the helical telescopic tube to rotate through gear 1 and gear 2, so that the helical rod from the bottom of the drill rod is screwed into the helical hole of the main drill rod, completing the first splicing. The drill rod drives the main drill rod to start drilling the soil. Step 2: The motor continuously drives the drill rod assembly to rotate and drill downwards. At the same time, the negative pressure pipe generates negative pressure. When the target depth is reached, the electric linear slide rail controls the slide plate above the corresponding placement plate to open. As the drill rod rotates, the soil lifted by the drill rod slides out from the outlet of the opened slide plate and falls into the designated placement plate. Excess soil rises to the vicinity of the negative pressure pipe under the action of the drill rod, is sucked out by the negative pressure pipe, and is placed and piled up.

[0015] The beneficial effects of this invention are as follows: 1. By setting up a sampling mechanism, the motor drives gear one to rotate, which in turn drives gear two to rotate, causing the spiral telescopic tube and the main drill rod driven by the drill rod to rotate and drill into the soil. The negative pressure tube, together with the fixed tube and other components, uses an electric linear slide rail to control the opening and closing of the slide plate outlet during rotation sampling, so as to achieve precise sample delivery to different placement trays. This not only improves the efficiency of soil sampling, but also allows the samples to be collected in different placement trays in an orderly manner, which is convenient for subsequent classification and testing, effectively avoids sample confusion, and improves the accuracy and reliability of test results. At the same time, the negative pressure tube sucks out the soil sample at the upper end of the fixed tube through negative pressure to avoid accumulation.

[0016] 2. By setting up an extension mechanism, motor two drives the helical gear to rotate. The helical gear meshes with the gear bearing, causing the inner shell and the hanging frame below to rotate. Utilizing the main drill rod, the spiral hole at the end of the drill rod, and the spiral rod structure, the main drill rod can be quickly spliced ​​and extended, adapting to the sampling needs of soil at different depths. At the same time, the silicone pads on the hanging frame can prevent the main drill rod from being worn and collided during placement, protecting the drill rod and preventing it from falling. The industrial camera can monitor the docking status of the main drill rod and the placement plate groove in real time, ensuring the accuracy of the drill rod connection, further improving the adaptability and stability of the device in different working scenarios. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of a soil sampling and testing device proposed in this invention; Figure 2 This is a cross-sectional view of the outer casing of a soil sampling and testing device proposed in this invention; Figure 3 This is a three-dimensional view of the negative pressure tube of a soil sampling and testing device proposed in this invention; Figure 4 This is a cross-sectional view of the negative pressure tube of a soil sampling and testing device proposed in this invention; Figure 5 This is a diagram showing the installation position of the electric linear slide rail of a soil sampling and testing device proposed in this invention. Figure 6 This is a perspective view of the gear bearing of a soil sampling and testing device proposed in this invention; Figure 7 This is a diagram showing the mounting frame position of a soil sampling and testing device proposed in this invention. Figure 8 This is a bottom view of the mounting frame of a soil sampling and testing device proposed in this invention; Figure 9 This is a diagram showing the connection relationship between the main drill rod and the slave drill rod of a soil sampling and testing device proposed in this invention. Figure 10 This invention provides a soil sampling and testing device. Figure 9 Enlarged view of point A in the middle.

[0018] In the diagram: 1. Outer shell; 2. Sampling mechanism; 21. Motor; 22. Gear 1; 23. Gear 2; 24. Inner shell; 25. Placement tray; 26. Bearing 1; 27. Fixing tube; 28. Slide groove; 29. ​​Slide plate; 210. Limiting post; 211. Electric linear slide rail; 212. Spiral telescopic tube; 3. Negative pressure tube; 4. Extension mechanism; 41. Gear bearing; 42. Motor 2; 43. Helical gear; 44. Cylinder; 45. Hanging bracket; 46. Main drill rod; 47. Spiral rod. Detailed Implementation

[0019] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0020] Reference Figures 1-10 A soil sampling and testing device includes a housing 1. A sampling mechanism 2 is provided at the upper end of the housing 1. The sampling mechanism 2 includes a motor 21. The lower end of the motor 21 is embedded in the upper end of the housing 1. The output shaft of the motor 21 is fixedly connected to a gear 22. A gear 23 meshes with the surface of the gear 22. The lower end of the gear 23 is rotatably connected to a negative pressure tube 3 via a bearing. A spiral telescopic tube 212 is fixedly connected to the lower end of the gear 23. A drill rod is fixedly connected to the lower end of the spiral telescopic tube 212. One end of the negative pressure tube 3 is fixedly connected to the upper end of the housing 1. An extension mechanism 4 is provided at the lower end of the housing 1. An inner shell 24 is provided inside the housing 1. Placement trays 25 are arranged in an array inside the inner shell 24. A bearing 26 is provided at the center of each placement tray 25. A fixing tube 27 is fixedly connected to the inner wall of the bearing 26. The upper end of the fixing tube 27 is fixedly connected to the lower end of the negative pressure tube 3.

[0021] In this embodiment, a groove 28 is provided on one side of the fixed tube 27. The inner wall of the groove 28 is provided with outlets that communicate with the inner wall of the fixed tube 27 at intervals. The inner wall of the groove 28 is provided with an array of slide plates 29 that are adapted to the outlets. The body of the slide plate 29 is slidably inserted into a limit post 210. The inner wall of the groove 28 is provided with an electric linear slide rail 211. The surface of the electric linear slide rail 211 is provided with an array of sliders that are adapted to the slide plate 29. The surface of the sliders is fixedly connected to the side of the slide plate 29. Specifically, the above design not only automates soil sample collection, avoiding potential contamination and errors caused by manual operation, but also allows soil samples collected at different depths and locations to be collected separately in different placement trays 25 by controlling the opening and closing of different sliding plates 29. This facilitates subsequent classification and analysis of the soil samples, helping researchers and testing personnel to better understand the differences in composition and properties of different soil layers, providing more accurate and comprehensive data support for soil quality assessment and rational land resource utilization. Furthermore, the structure of the electric linear guide rail 211 in conjunction with the sliding plates 29 significantly improves sample collection efficiency and reduces labor costs compared to traditional manual sample collection methods, making soil sampling and testing more efficient and convenient.

[0022] In this embodiment, the extension mechanism 4 includes a gear bearing 41 disposed at the lower end of the inner shell 24. The inner ring of the gear bearing 41 is fixedly connected to the lower end of the inner shell 24. A second motor 42 is disposed on one side of the gear bearing 41. The main body of the second motor 42 is embedded in the outer shell 1. The output shaft of the second motor 42 is fixedly connected to a helical gear 43. The surface of the helical gear 43 meshes with the toothed surface of the outer surface of the gear bearing 41. A cylinder 44 is disposed below the second motor 42. A hanging bracket 45 is arranged in an array at the lower end of the gear bearing 41. A main drill rod 46 is placed on the surface of each hanging bracket 45. The lower end of the placement plate 25 located at the bottom inside the inner shell 24 extends to the outside of the inner shell 24. A groove is opened on the lower surface of the placement plate 25. The upper end of the main drill rod 46 is interactively connected with the inner wall of the groove. The outer surface of the main drill rod 46 is in contact with one end of the piston rod of the cylinder 44. An industrial camera is disposed on the lower surface of the placement plate 25 located at the bottom inside the inner shell 24, facing the groove.

[0023] Specifically, the automatic selection and docking of the main drill rod 46 is achieved through the rotation of the gear bearing 41 and the push of the cylinder 44, without the need for manual intervention, which significantly improves work efficiency. The main drill rod 46 and the slave drill rod are connected by a spiral hole and a spiral rod, which is firm and easy to disassemble. It can withstand the torque and pressure during drilling and ensure the stability of the sampling process. The array of the mounting bracket 45 can accommodate multiple main drill rods 46, which facilitates continuous sampling of soil at different depths and meets diverse testing needs. The industrial camera located on the lower surface of the placement plate 25 at the bottom of the inner shell 24 can monitor the docking status of the main drill rods 46 in real time, ensuring docking accuracy and further improving the reliability and automation of the device.

[0024] In this embodiment, the upper end of the main drill rod 46 is provided with a spiral hole, and the lower end of the main drill rod 46 is fixedly connected with a spiral rod 47 that is adapted to the spiral hole. The lower end of the drill rod has the same characteristics as the lower end of the main drill rod 46.

[0025] Specifically, when drill rods need to be spliced, the spiral telescopic tube 212 drives the drill rod to rotate, and the spiral rod 47 at the lower end of the drill rod is screwed into the spiral hole at the upper end of the main drill rod 46, achieving a tight connection between the two. This spiral connection method can not only withstand large torque and tension, ensuring that the drill rod will not loosen or fall off during drilling, but also quickly complete the connection and disassembly through rotation, improving work efficiency. When it is necessary to further extend the length of the drill rod, simply control the motor 21 to reverse, which will drive the drill rod to rise through the spiral telescopic tube 212. The lower end of the drill rod will be disconnected from the upper end of the main drill rod 46. Then, with the cooperation of the cylinder 44 and the industrial camera, the cylinder 44 will push the main drill rod 46 hanging on the mounting bracket 45 towards the center of the placement plate 25. The industrial camera will monitor the alignment of the spiral rod 47 at the lower end of the drill rod with the spiral hole at the upper end of the main drill rod 46 after restoring to the initial state. This allows multiple main drill rods 46 to be connected sequentially through the spiral rod 47 at the lower end and the spiral hole at the upper end, forming a longer drill rod assembly to meet the needs of soil sampling at different depths.

[0026] In this embodiment, a silicone pad is provided on the outer surface of the mounting bracket 45.

[0027] Specifically, the silicone pad has good elasticity and cushioning properties. The silicone pad has a large friction force, which can increase the friction between the main drill rod 46 and the mounting bracket 45, making the main drill rod 46 more stable on the mounting bracket 45 and less likely to shake or fall off.

[0028] In this embodiment, the outer casing 1 has an outlet.

[0029] Specifically, after soil sampling is completed, operators can directly remove the placement tray 25 through the extraction port for subsequent testing and analysis of the collected soil samples. A sealing door or cover can be installed at the extraction port to keep it closed during operation, preventing external dust and debris from entering the inner shell 24 and affecting the normal operation of the device.

[0030] Reference Figures 1-10 A detection method for a soil sampling and testing device, the specific steps of which are as follows: Step 1: Move the device to the target detection area and fix the device with the support structure at the bottom of the outer shell 1 to ensure that the device is in a horizontal and stable state. Motor 2 42 drives the helical gear 43 to rotate, which drives the gear bearing 41 and the hanging frame 45 to rotate. Align the first main drill rod 46 with the bottom of the drill rod. Cylinder 44 pushes the main drill rod 46 to slide along the slide groove to the docking position. The industrial camera monitors the alignment of the spiral hole and the spiral rod 47 in real time. Motor 21 starts and drives the spiral telescopic tube 212 to rotate through gear 1 22 and gear 2 23, so that the spiral rod 47 from the bottom of the drill rod is screwed into the spiral hole of the main drill rod 46, completing the first splicing. The drill rod drives the main drill rod 46 to start drilling. Step 2: The motor 21 continuously drives the drill rod assembly to rotate and drill downwards. At the same time, the negative pressure pipe 3 generates negative pressure. When the target depth is reached, the electric linear slide rail 211 controls the slide plate 29 above the corresponding placement plate 25 to open. As the drill rod rotates, the soil lifted by the drill rod slides out from the opening of the slide plate 29 and falls into the designated placement plate 25. Excess soil rises to the vicinity of the negative pressure pipe 3 under the action of the drill rod and is sucked out by the negative pressure pipe 3 and placed in a pile.

[0031] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A soil sampling and testing device, comprising a housing (1), characterized in that: A sampling mechanism (2) is provided at the upper end of the inner shell (1). The sampling mechanism (2) includes a motor (21). The lower end of the motor (21) is embedded in the upper end of the shell (1). The output shaft of the motor (21) is fixedly connected to a gear one (22). The surface of the gear one (22) is meshed with a gear two (23). The lower end of the gear two (23) is rotatably connected to a negative pressure pipe (3) through a bearing. The lower end of the gear two (23) is fixedly connected to a spiral telescopic pipe (212). The lower end of the spiral telescopic pipe (212) is fixedly connected to a drill rod.

2. The soil sampling and testing device according to claim 1, characterized in that: One end of the negative pressure tube (3) is fixedly connected to the upper end of the outer shell (1). An extension mechanism (4) is provided at the lower end of the inner shell (1). An inner shell (24) is provided inside the outer shell (1). Placement plates (25) are arranged in an array inside the inner shell (24). A bearing (26) is provided at the center of each placement plate (25). A fixing tube (27) is fixedly connected to the inner wall of the bearing (26). The upper end of the fixing tube (27) is fixedly connected to the lower end of the negative pressure tube (3).

3. The soil sampling and testing device according to claim 2, characterized in that: A groove (28) is provided on one side of the fixed tube (27). The inner wall of the groove (28) is provided with outlets that communicate with the inner wall of the fixed tube (27) at intervals. The inner wall of the groove (28) is provided with a slide plate (29) that is adapted to the outlet. The body of the slide plate (29) is slidably inserted into a limit post (210). The inner wall of the groove (28) is provided with an electric linear slide rail (211). The surface of the electric linear slide rail (211) is provided with a slider that is adapted to the slide plate (29). The surface of the slider is fixedly connected to the side of the slide plate (29).

4. The soil sampling and testing device according to claim 3, characterized in that: The extension mechanism (4) includes a gear bearing (41) disposed at the lower end of the inner shell (24). The inner ring of the gear bearing (41) is fixedly connected to the lower end of the inner shell (24). A second motor (42) is disposed on one side of the gear bearing (41). The body of the second motor (42) is embedded in the outer shell (1). A helical gear (43) is fixedly connected to the output shaft of the second motor (42). The surface of the helical gear (43) meshes with the toothed surface of the outer surface of the gear bearing (41). A cylinder (44) is disposed below the second motor (42).

5. A soil sampling and testing device according to claim 4, characterized in that: The lower end of the gear bearing (41) is provided with a hanging bracket (45), and a main drill rod (46) is placed on the surface of each hanging bracket (45). The lower end of the placement plate (25) located at the bottom inside the inner shell (24) extends to the outside of the inner shell (24). A sliding groove is opened on the lower surface of the placement plate (25). The upper end of the main drill rod (46) is interactively connected with the inner wall of the sliding groove. The outer surface of the main drill rod (46) is in contact with one end of the piston rod of the cylinder (44).

6. A soil sampling and testing device according to claim 5, characterized in that: The upper end of the main drill rod (46) is provided with a spiral hole, and the lower end of the main drill rod (46) is fixedly connected with a spiral rod (47) that is adapted to the spiral hole. The lower end of the secondary drill rod has the same characteristics as the lower end of the main drill rod (46).

7. A soil sampling and testing device according to claim 6, characterized in that: The outer surface of the hanging bracket (45) is provided with a silicone pad.

8. A soil sampling and testing device according to claim 7, characterized in that: The outer shell (1) has an opening for taking out.

9. A soil sampling and testing device according to claim 8, characterized in that: An industrial camera is positioned on the lower surface of the placement tray (25) located at the bottom of the inner shell (24), facing the groove.

10. The detection method of the soil sampling and testing device according to claim 9, characterized in that, The specific steps are as follows: Step 1: Move the device to the target detection area and fix the device by the support structure at the bottom of the outer shell (1) to ensure that the device is in a horizontal and stable state. The second motor (42) drives the helical gear (43) to rotate, which drives the gear bearing (41) and the hanging frame (45) to rotate. Align the first main drill rod (46) with the bottom of the drill rod. The cylinder (44) pushes the main drill rod (46) to slide along the slide to the docking position. The industrial camera monitors the alignment of the spiral hole and the spiral rod (47) in real time. The motor (21) starts and drives the spiral telescopic tube (212) to rotate through the first gear (22) and the second gear (23), so that the spiral rod (47) at the bottom of the drill rod is screwed into the spiral hole of the main drill rod (46) to complete the first splicing. The main drill rod (46) is driven by the drill rod to start drilling. Step 2: The motor (21) continuously drives the drill rod assembly to rotate and drill downwards. At the same time, the negative pressure pipe (3) generates negative pressure. When the target depth is reached, the electric linear slide rail (211) controls the slide plate (29) above the corresponding placement plate (25) to open. As the drill rod rotates, the soil lifted by the drill rod slides out from the outlet opened by the slide plate (29) and falls into the designated placement plate (25). Excess soil rises to the vicinity of the negative pressure pipe (3) under the action of the drill rod and is sucked out by the negative pressure pipe (3) to prevent accumulation.

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