A kind of mounted unmanned aerial vehicle soil sampling device for land reclamation

Abstract

This invention relates to the field of soil sampling device technology, and more particularly to a mountable UAV soil sampling device for land reclamation. The device comprises an upper shell, a lower shell, a drilling assembly, and an air pump assembly. The upper shell is fixedly mounted on the top of the lower shell via a mounting buckle, which is then bolted to both the upper and lower shells. A bracket is fixedly mounted on the bottom of the lower shell. This invention, by installing an outer cylinder outside the guide cylinder, creates a double-layered cylindrical guiding structure. This structure ensures the stability of the drill bit sampling without affecting soil sample transmission. Furthermore, in conjunction with the air pump assembly, high-pressure airflow is used to backwash and clean the soil movement path of the drill bit, guide cylinder, and outer cylinder. This allows for the cleaning of the soil movement path during sampling point changes, significantly reducing the risk of cross-contamination between soil samples from different sampling points.

Description

Technical Field

[0001] This invention relates to the field of soil sampling device technology, specifically to a mountable UAV soil sampling device for land reclamation. Background Technology

[0002] Land reclamation areas are mostly formed by backfilling mining areas or transforming industrial legacy sites. Soil quality monitoring is the core link in assessing the effectiveness of reclamation. It is necessary to analyze key indicators such as fertility and heavy metal content through testing a large number of soil samples. Traditional manual sampling methods are limited by risk factors such as terrain and pollution, resulting in problems such as low efficiency, high operational safety hazards, and incomplete sampling coverage. Therefore, we propose a mountable UAV soil sampling device for land reclamation.

[0003] The existing technology still has the following drawbacks in its use: The sampling process of existing mounted UAV soil sampling devices is prone to cross-contamination, which seriously affects the accuracy of sample data. This is especially critical for sampling potentially contaminated plots in land reclamation areas, as it can lead to misjudgments of the scope and degree of contamination, thus affecting the scientific formulation of reclamation and remediation plans. In existing technologies, most mounted UAV soil sampling devices only support single sampling, requiring frequent take-offs and landings, resulting in extremely low sampling efficiency. Since land reclamation areas are typically vast and require the deployment of numerous sampling points, frequent trips not only significantly increase operation time and energy consumption but also reduce the positioning accuracy of sampling points due to multiple take-offs and landings, making it difficult to achieve large-scale, efficient sampling coverage and failing to meet the needs of rapid soil quality surveys in reclamation areas.

[0004] In view of this, we propose a mountable UAV soil sampling device for land reclamation to solve the existing problems. Summary of the Invention

[0005] The purpose of this invention is to provide a mounted UAV soil sampling device for land reclamation, so as to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a mountable UAV soil sampling device for land reclamation, comprising an upper shell, a lower shell, a drilling assembly, and an air pump assembly. The upper shell is fixedly mounted on the top of the lower shell via a mounting buckle, and the mounting buckle is fixedly connected to the upper shell and the lower shell respectively via bolts. A bracket is fixedly mounted on the bottom of the lower shell. The bracket consists of four support rods with pointed bottoms and four crossbeams, and the bracket as a whole has a U-shaped frame structure. The crossbeams in the bracket are installed at the pointed ends higher than the bottom of the support rods, and reinforcing beams are fixedly mounted between the crossbeams. A 45-degree angle is set between the crossbeams and the reinforcing beams. The top of the upper housing has a square slot, and a cover plate is fixedly installed on the top of the upper housing above the square slot. The cover plate has an exhaust hole inside. Several sample boxes are snapped onto the inner wall of the lower shell near the surrounding inner wall. The sample boxes are closed box structures. An air outlet pipe and a material inlet pipe are fixedly installed on the top of the sample box. Valves are fixedly installed at the connection points between the air outlet pipe and the material inlet pipe and the top of the sample box. A drilling and extraction assembly is installed at the center of the lower housing; An air pump assembly is fixedly installed inside the lower housing, located on the inside of the sample box.

[0007] Preferably, the top two sides of the upper housing are fixedly installed with buckles, the top of the buckle is an arc-shaped structure, and two bolts are installed inside the buckle at the center of the arc-shaped structure by means of a threaded structure.

[0008] Preferably, a storage battery is fixedly installed inside several sample boxes inside the lower housing, and the storage battery is located on the side of the drilling assembly away from the air pump assembly. The storage battery is electrically connected to other electronic components through several cables.

[0009] Preferably, the drilling assembly includes a guide cylinder, the bottom of which is fixedly connected to the lower housing, and the bottom of the guide cylinder has several horizontally connected grooves. An outer cylinder is fixedly installed on the outside of the guide cylinder, the top of which is fixedly connected to the guide cylinder, and a cavity is provided between the inner wall of the outer cylinder and the outer wall of the guide cylinder. Several discharge ports are provided on the side wall of the outer cylinder near the bottom, and a suction pipe is fixedly installed on the outside of the discharge ports. A control valve is fixedly installed in the suction pipe, and the suction pipe is connected to the inlet pipe.

[0010] Preferably, a drill bit is movably installed inside the guide cylinder, and an electric motor is fixedly installed at the top of the drill bit. A motor base is fixedly installed on the outside of the electric motor, and telescopic rods are fixedly installed on both sides of the bottom of the motor base. The bottom of the telescopic rods is fixedly connected to the lower housing.

[0011] Preferably, the air pump assembly includes an air pump box, inside which two air pumps are fixedly installed. An adapter pipe is fixedly installed on one side of the air pump box, and several connecting pipes are fixedly installed on the adapter pipe. The connecting pipes are connected to the air outlet pipe. An air extraction pipe is fixedly installed on one side of the air pump box, and the air extraction pipe is connected to the adapter pipe.

[0012] Preferably, an exhaust pipe is fixedly installed on one side of the air pump box, and the exhaust pipe extends into the interior of the exhaust port; an intake pipe is fixedly installed on one side of the air pump box; and an air jet pipe is fixedly installed on one side of the air pump box, with the end of the air jet pipe extending into the drilling and production assembly.

[0013] Compared with the prior art, the beneficial effects of the present invention are: This invention, by installing an outer cylinder on the outside of the guide cylinder, forms a double-layered cylindrical guiding structure that ensures the stability of drill bit sampling without affecting the transmission of soil samples. It can also be used in conjunction with an air pump assembly to use high-pressure airflow to backwash and clean the soil movement path of the drill bit, guide cylinder, and outer cylinder. This allows for the cleaning of the soil movement path during sampling point changes, greatly reducing the risk of cross-contamination between soil samples from different sampling points.

[0014] This invention, by installing several sample boxes inside the lower shell, enables the drilling and sampling assembly to perform multi-point sampling at different sampling points through the cooperation of multiple sample boxes, guide cylinder, outer cylinder, and air pump assembly. The collected soil samples are then stored independently, so that the drone only needs to carry the device to change the sampling position, eliminating the need for the drone to frequently travel back and forth, thereby improving the soil sampling efficiency. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a schematic diagram of the first partial three-dimensional structure of the present invention; Figure 3 This is a front view of the present invention. Figure 4 This is a schematic diagram of the second partial three-dimensional structure of the present invention; Figure 5 This is a partial three-dimensional cross-sectional structural diagram of the present invention; Figure 6 for Figure 2 A magnified schematic diagram of the structure at point A in the middle.

[0016] In the diagram: 1. Upper shell; 101. Mounting buckle; 102. Fastener; 2. Lower shell; 201. Bracket; 202. Sample box; 203. Air outlet pipe; 204. Feed pipe; 205. Battery; 3. Cover plate; 301. Exhaust port; 4. Drilling assembly; 401. Outer cylinder; 402. Extraction pipe; 403. Drill bit; 404. Connecting groove; 405. Discharge port; 406. Guide cylinder; 407. Telescopic rod; 408. Motor; 409. Motor base; 5. Air pump assembly; 501. Exhaust pipe; 502. Air pump box; 503. Extraction pipe; 504. Adaptor pipe; 505. Connecting pipe; 506. Air jet pipe; 507. Suction pipe. Detailed Implementation

[0017] The technical solution of the present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0018] like Figures 1-6 As shown, the present invention proposes a mounted UAV soil sampling device for land reclamation, comprising an upper shell 1, a lower shell 2, a drilling assembly 4, and an air pump assembly 5. The upper shell 1 is fixedly mounted on the top of the lower shell 2 via a mounting buckle 101, and the mounting buckle 101 is fixedly connected to the upper shell 1 and the lower shell 2 respectively by bolts. A bracket 201 is fixedly mounted on the bottom of the lower shell 2. The bracket 201 consists of four support rods with pointed bottoms and four crossbeams, and the bracket 201 has an overall U-shaped frame structure. The crossbeams in the bracket 201 are installed at... The tip of the support rod is higher than the bottom of the support rod, and a reinforcing beam is fixedly installed between the crossbeams. The crossbeams and the reinforcing beams are set at a 45-degree angle. The lower shell 2 and the upper shell 1 are combined to form a closed shell, which provides a position for the installation of the surrounding components. The bracket 201 can support the device. The tip of the bottom of the bracket 201 can be used to make the device penetrate into the soil after reaching the sampling point, which can limit the device. It also works with the crossbeam to prevent the soil from being too loose and sinking into the soil, making it difficult to pull out. This ensures the overall stability of the device during the soil sampling process. The top of the upper housing 1 has a square slot, and a cover plate 3 is fixedly installed on the top of the upper housing 1 above the square slot. The cover plate 3 has an exhaust hole 301 inside. The cover plate 3 can close the square slot on the top of the upper housing 1. By opening and closing the cover plate 3, it is convenient to install and debug the internal components of the device from the top of the device, which greatly facilitates the maintenance of the device in the later stage. The exhaust hole 301 can provide a position for exhausting the air pump assembly 5. Several sample boxes 202 are snapped onto the inner wall of the lower shell 2 near the surrounding inner walls. The sample boxes 202 are closed box structures. An air outlet pipe 203 and a feed pipe 204 are fixedly installed on the top of the sample boxes 202. Valves are fixedly installed at the connection points between the air outlet pipe 203 and the feed pipe 204 and the top of the sample boxes 202. The sample boxes 202 can collect and store the collected soil samples independently, thereby avoiding cross-contamination between soil samples from different sampling points. The air outlet pipe 203 can be connected to the adapter pipe 504, which facilitates the air pump assembly 5 to draw air from the inside of the sample boxes 202 to create a negative pressure environment, so as to draw the collected soil samples into the sample boxes 202. The feed pipe 204 can be connected to the outer cylinder 401. When a negative pressure environment is created inside the sample boxes 202, the negative pressure can be used to draw the soil samples into the sample boxes 202. A drilling and sampling assembly 4 is installed at the center of the lower housing 2. The drilling and sampling assembly 4 can use a screw-shaped drill bit 403 to drill and extract soil, thereby achieving rapid soil sampling. Inside the lower housing 2, an air pump assembly 5 is fixedly installed inside the sample box 202. The air pump assembly 5 can work with other components to allow the sample box 202 to use negative pressure to draw soil samples into the sample box 202 for storage. After a single sampling, the drilling assembly 4 can be cleaned, thereby avoiding cross-contamination of soil samples during multiple samplings.

[0019] Furthermore, latches 102 are fixedly installed on both sides of the top of the upper shell 1. The top of the latches 102 is an arc-shaped structure, and two bolts are installed in the center of the arc-shaped structure inside the latches 102 through a threaded structure. The latches 102 can fix the upper shell 1 and the drone tripod, thereby hanging the device under the drone and using the drone to carry the device for movement. This can replace the traditional manual sampling method and greatly improve the efficiency of multi-point soil sampling.

[0020] Furthermore, a storage battery 205 is fixedly installed inside several sample boxes 202 inside the lower housing 2, and the storage battery 205 is located on the side of the drilling assembly 4 away from the air pump assembly 5. The storage battery 205 is electrically connected to other electronic components through several cables. The storage battery 205 can store electrical energy and thus provide power to the electrical components inside the device.

[0021] Furthermore, the drilling and production assembly 4 includes a guide cylinder 406, the bottom of which is fixedly connected to the lower housing 2, and the bottom of the guide cylinder 406 is provided with several transverse connecting grooves 404. An outer cylinder 401 is fixedly installed on the outside of the guide cylinder 406, the top of which is fixedly connected to the guide cylinder 406, and a cavity is provided between the inner wall of the outer cylinder 401 and the outer wall of the guide cylinder 406. Several discharge ports 405 are provided on the side wall of the outer cylinder 401 near the bottom. A material extraction pipe 402 is fixedly installed on the outside of the sample box 202. A control valve is fixedly installed in the material extraction pipe 402, and the material extraction pipe 402 is connected to the inlet pipe 204. The guide cylinder 406 can cooperate with the drill bit 403. When the drill bit 403 drills into the soil, the soil sample drilled by the drill bit 403 is introduced into the cavity between the outer cylinder 401 and the guide cylinder 406. Then, the material extraction pipe 402 is connected to the inlet pipe 204 at the top of the sample box 202, so that the collected soil sample is sucked into the sample box 202 for storage.

[0022] Furthermore, a drill bit 403 is movably installed inside the guide cylinder 406, and a motor 408 is fixedly installed at the top of the drill bit 403. A motor base 409 is fixedly installed on the outside of the motor 408, and telescopic rods 407 are fixedly installed on both sides of the bottom of the motor base 409. The bottom of the telescopic rods 407 is fixedly connected to the lower housing 2. When the motor 408 is powered on, it rotates, driving the drill bit 403 to rotate. At the same time, under the longitudinal extension and retraction of the telescopic rods 407, the motor 408 and the drill bit 403 move longitudinally, causing the drill bit 403 located inside the lower housing 2 to extend out and slowly extend into the soil to sample the soil.

[0023] Furthermore, the air pump assembly 5 includes an air pump box 502, inside which two air pumps are fixedly installed. An adapter pipe 504 is fixedly installed on one side of the air pump box 502, and several connecting pipes 505 are fixedly installed on the adapter pipe 504. The connecting pipes 505 are connected to the air outlet pipe 203. An air extraction pipe 503 is fixedly installed on one side of the air pump box 502, and the air extraction pipe 503 is connected to the adapter pipe 504. A total of two air pumps are provided. One of them is used to cooperate with the sample box 202 to extract soil samples, and the other is used to backflushing and cleaning the guide tube 406 and the drill bit 403.

[0024] Furthermore, an exhaust pipe 501 is fixedly installed on one side of the air pump box 502, and the exhaust pipe 501 extends into the interior of the exhaust port 301. An air suction pipe 507 is fixedly installed on one side of the air pump box 502, and an air jet pipe 506 is fixedly installed on one side of the air pump box 502, and the end of the air jet pipe 506 extends into the drilling and extraction assembly 4. The exhaust pipe 501 enables the air pump to exhaust air outward, thereby facilitating the extraction of air from the sample box 202. The air suction pipe 507 enables another air pump to draw air in, and then the air jet pipe 506 is used to clean the space between the guide cylinder 406 and the outer cylinder 401 by air jet cleaning.

[0025] Working principle: The device is mounted on the drone tripod using the hook and loop fastener 102. During sampling, the drone carrying the device descends slowly, and the pointed end of the support 201 at the bottom penetrates the soil to ensure stability. Then, the motor 408 is energized, driving the drill bit 403 to rotate. Simultaneously, the telescopic rod 407 extends downwards, allowing the drill bit 403 to gradually penetrate deeper into the soil for sampling. The drilled soil sample enters the cavity between the outer cylinder 401 and the guide cylinder 406 through the guide tube 406. At this time, the air pump assembly 5 starts. One air pump connects to several sample boxes 202 through the suction pipe 503 and the adapter pipe 504, creating a negative pressure environment by evacuating air from inside the sample boxes 202. Under this negative pressure, the soil sample is drawn into the suction pipe 402 and the inlet pipe 204. The sample is collected in the corresponding sample box 202. After a single sampling is completed, the extraction pipe 402 is closed, and another air pump sprays high-pressure airflow into the outer cylinder 401 and guide cylinder 406 through the jet pipe 506 to reverse-flushing and cleaning the drill bit 403 and the soil movement path. The waste generated during cleaning is discharged into the external environment from the bottom of the lower shell 2 through the guide cylinder 406. After cleaning is completed, the drone carries the device to change the sampling position and repeats the above steps to enable the device to continuously collect soil samples at different sampling points. Each sample box 202 independently stores the soil samples of the corresponding sampling point to effectively avoid cross-contamination. When all sample boxes 202 are full or the sampling task is completed, the drone transports the device back to the laboratory for subsequent testing and analysis.

[0026] The above specific embodiments are merely several preferred embodiments of the present invention. Based on the technical solutions of the present invention and the relevant teachings of the above embodiments, those skilled in the art can make various alternative improvements and combinations to the above specific embodiments.

Claims

1. A mountable UAV soil sampling device for land reclamation, comprising an upper shell (1), a lower shell (2), a drilling assembly (4), and an air pump assembly (5), characterized in that: The top of the lower housing (2) is fixedly installed with the upper housing (1) by the mounting buckle (101), and the mounting buckle (101) is fixedly connected to the upper housing (1) and the lower housing (2) by bolts respectively. The bottom of the lower housing (2) is fixedly installed with a bracket (201). The bracket (201) consists of four support rods with pointed bottom ends and four crossbeams. The bracket (201) is a U-shaped frame structure. The crossbeams in the bracket (201) are installed at the pointed ends higher than the bottom of the support rods. Reinforcing beams are fixedly installed between the crossbeams. A 45-degree angle is set between the crossbeams and the reinforcing beams. The top of the upper housing (1) is provided with a square slot, and a cover plate (3) is fixedly installed on the top of the upper housing (1) above the square slot. An exhaust hole (301) is provided inside the cover plate (3). Several sample boxes (202) are snapped onto the inner wall of the lower shell (2) near the surrounding inner wall. The sample boxes (202) are closed box structures. An air outlet pipe (203) and a material inlet pipe (204) are fixedly installed on the top of the sample boxes (202). Valves are fixedly installed at the connection points between the air outlet pipe (203) and the material inlet pipe (204) and the top of the sample boxes (202). The drilling and extraction assembly (4) is installed at the center of the lower housing (2). An air pump assembly (5) is fixedly installed inside the lower housing (2) on the inside of the sample box (202).

2. The mounted UAV soil sampling device for land reclamation according to claim 1, characterized in that: The top two sides of the upper housing (1) are fixedly installed with buckles (102). The top of the buckle (102) is an arc-shaped structure, and two bolts are installed inside the buckle (102) at the center of the arc-shaped structure through a threaded structure.

3. The mounted UAV soil sampling device for land reclamation according to claim 1, characterized in that: The lower housing (2) is equipped with batteries (205) fixedly installed inside several sample boxes (202), and the batteries (205) are located on the side of the drilling assembly (4) away from the air pump assembly (5). The batteries (205) are electrically connected to other electronic components through several cables.

4. A mounted UAV soil sampling device for land reclamation according to claim 1, characterized in that: The drilling assembly (4) includes a guide cylinder (406), the bottom of which is fixedly connected to the lower housing (2), and the bottom of the guide cylinder (406) is provided with several horizontally connected grooves (404). An outer cylinder (401) is fixedly installed on the outside of the guide cylinder (406), the top of which is fixedly connected to the guide cylinder (406), and a cavity is provided between the inner wall of the outer cylinder (401) and the outer wall of the guide cylinder (406). Several discharge ports (405) are provided on the side wall of the outer cylinder (401) near the bottom, and a suction pipe (402) is fixedly installed on the outside of the discharge port (405). A control valve is fixedly installed in the suction pipe (402), and the suction pipe (402) is connected to the feed pipe (204).

5. A mounted UAV soil sampling device for land reclamation according to claim 4, characterized in that: A drill bit (403) is movably installed inside the guide cylinder (406), and a motor (408) is fixedly installed at the top of the drill bit (403). A motor base (409) is fixedly installed on the outside of the motor (408), and telescopic rods (407) are fixedly installed on both sides of the bottom of the motor base (409). The bottom of the telescopic rods (407) is fixedly connected to the lower housing (2).

6. A mounted UAV soil sampling device for land reclamation according to claim 1, characterized in that: The air pump assembly (5) includes an air pump box (502), inside which two air pumps are fixedly installed. An adapter pipe (504) is fixedly installed on one side of the air pump box (502), and several connecting pipes (505) are fixedly installed on the adapter pipe (504). The connecting pipes (505) are connected to the air outlet pipe (203). An air extraction pipe (503) is fixedly installed on one side of the air pump box (502), and the air extraction pipe (503) is connected to the adapter pipe (504).

7. A mounted UAV soil sampling device for land reclamation according to claim 6, characterized in that: An exhaust pipe (501) is fixedly installed on one side of the air pump box (502), and the exhaust pipe (501) extends into the interior of the exhaust hole (301). An air intake pipe (507) is fixedly installed on one side of the air pump box (502), and an air jet pipe (506) is fixedly installed on one side of the air pump box (502), and the end of the air jet pipe (506) extends into the drilling and production assembly (4).

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