Natural resource soil sampling device

Abstract

The invention relates to the technical field of soil sampling, and discloses a natural resource soil sampling device which comprises a vehicle body and a sampling mechanism, one end of the vehicle body is hinged to a turning plate, the sampling mechanism is installed on the top of the turning plate, the bottom of a motor is fixedly connected with a first gear, and the bottom of the first gear is fixedly connected with a spiral drill rod. One end of the first gear is in meshed connection with a second gear, the middle of the second gear is fixedly connected with a lead screw, the bottom end of the lead screw is in threaded connection with a sleeve, the two ends of the two bases are fixedly connected with two fixing rods and fixing bases correspondingly, and the first gear and the second gear are driven by a motor to rotate; the first gear directly drives the spiral drill rod to rotate for sampling, the second gear drives the lead screw to rotate synchronously, the lead screw and the sleeve form spiral transmission, rotary motion is converted into axial feeding motion, the sleeve is fixed to the turning plate, and therefore the lead screw drives the base, the fixing rod and the fixing base to move downwards as a whole, and synchronous feeding of the spiral drill rod is achieved.

Description

Technical Field

[0001] This invention relates to the field of soil sampling technology, specifically to a natural resource soil sampling device. Background Technology

[0002] In fields such as natural resource surveys, agricultural production monitoring, and environmental quality assessment, soil sampling is a crucial step in obtaining soil samples and analyzing their physical and chemical properties. The efficiency of sampling, the integrity of the samples, and the ease of operation directly affect the accuracy of subsequent test results and the efficiency of the work.

[0003] Currently available soil sampling devices often have the following shortcomings: some devices lack a stable vehicle-mounted structure, requiring manual handling or carrying of the sampling components, which is not only labor-intensive but also lacks flexibility when moving to different sampling points. Especially in complex terrains in the field (such as sloping areas and soft soil areas), the devices are prone to displacement, making it difficult to accurately locate the sampling position. Meanwhile, the power transmission and actuator of traditional sampling devices lack coordination, requiring manual control of the drill rod's downward feed, which is time-consuming and labor-intensive. In addition, most existing devices are integrated fixed structures, which are bulky when not in operation, making them inconvenient to transport and store. This portability shortcoming is even more prominent in field scenarios where there is no mechanical assistance for transportation.

[0004] To address the aforementioned issues, there is an urgent need for innovative designs based on existing natural resource soil sampling devices. Summary of the Invention

[0005] To address the problems of existing methods that rely on manual control of the drill rod's downward feed, which is time-consuming and labor-intensive, and the fact that most existing devices are integrated and fixed structures that are bulky and inconvenient to transport and store when not in use, this invention provides a natural resource soil sampling device.

[0006] This invention is achieved using the following technical solution: a natural resource soil sampling device, comprising a vehicle body and a sampling mechanism. A pull rod is fixedly connected to one end of the vehicle body, and a fixing screw is provided at one end of the vehicle body. The bottom end of the fixing screw is threadedly connected to the inside of the vehicle body. A limit screw is provided at the other end of the vehicle body. A flap is hingedly connected to one end of the vehicle body. The sampling mechanism is installed on the top of the flap. The sampling mechanism includes a motor and a spiral drill rod. A fixed base is provided at the bottom of the motor. A first gear is fixedly connected to the bottom of the motor. A spiral drill rod is fixedly connected to the bottom of the first gear. A second gear is meshed with one end of the first gear. A lead screw is fixedly connected to the middle of the second gear. A sleeve is threadedly connected to the bottom end of the lead screw. The bottom end of the sleeve is fixedly connected to the top of the flap. A base is provided at the bottom of the second gear. Two fixing rods are fixedly connected to both ends of the two bases, and one end of each fixing rod is fixedly connected to one end of the fixed base.

[0007] Preferably, the top two ends of the flap are fixedly connected to columns, the top of the columns are fixedly connected to crossbars, one end of the crossbar is fixedly connected to a limit rod, and one end of the fixed rod is movably connected to the outside of the limit rod.

[0008] Preferably, the first gear is rotatably connected inside the fixed base, and the lead screw is rotatably connected inside the base.

[0009] Preferably, the lead screw is rotatably connected inside the base, a fixing frame is fixedly connected between the two columns, and the top of the lead screw is rotatably connected to the bottom of the fixing frame.

[0010] Preferably, one end of the flap is fixedly connected to two extension blocks, and the bottom of the limiting rod is fixedly connected to the top of the extension blocks.

[0011] Preferably, a support block is fixedly connected to the middle of one end of the flap, and the support block is located on one side of the bottom of the auger rod.

[0012] Preferably, the limiting screw includes a handwheel and a threaded rod, with the top of the threaded rod fixedly connected to the bottom of the handwheel.

[0013] Preferably, a pressure plate is rotatably connected to the top of the threaded rod, one end of the pressure plate is located at the top of the flap, and two limiting rings are fixedly connected to the bottom of the threaded rod, with the pressure plate located between the two limiting rings.

[0014] Preferably, the bottom of the threaded rod is threadedly connected to the inside of the vehicle body, the top of the vehicle body is machined with a groove, and the limiting ring is located inside the groove.

[0015] Preferably, a placement groove is machined on the top of one end of the vehicle body, and one end of the base is inserted into the placement groove.

[0016] Compared with the prior art, the beneficial effects of the present invention are: In use, the vehicle body moves via a tie rod, and the fixing screw and the limiting screw form a bidirectional fixation. Utilizing the axial feeding characteristics of the threaded drive, the bottom end of the screw is inserted into the soil. The lateral constraint force of the soil on the screw and the screw's own pull-out resistance combine to form a stable fixed fulcrum, preventing the vehicle body from shaking or moving during sampling.

[0017] When in use, the present invention is hinged to the vehicle body via a flap, and can be flipped around the hinge point. The sampling mechanism is fixed to the flap via a base, realizing the folding and storage of the sampling mechanism during transportation.

[0018] In use, the invention uses the torque output of the motor to drive the first gear to rotate, and the power is transmitted to the second gear through gear meshing. The first gear directly drives the spiral drill rod to rotate, causing the deep soil to rise along the blade to the sampling area. The second gear drives the lead screw to rotate synchronously. The lead screw and the sleeve form a spiral transmission, which converts the rotational motion into axial feed motion. The sleeve is fixed to the flap, so the lead screw drives the base, the fixed rod and the fixed seat to move downward as a whole, realizing the synchronous feed of the spiral drill rod. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the position structure of the flap and the spiral drill rod of the present invention; Figure 3 This is a schematic diagram of the connection structure between the first gear and the spiral drill rod of the present invention; Figure 4 This is a schematic diagram of the connection structure between the vehicle body and the limiting screw of the present invention.

[0020] In the diagram: 1. Vehicle body; 2. Flip plate; 3. Tie rod; 4. Fixing screw; 5. Limiting screw; 501. Handwheel; 502. Threaded rod; 503. Pressure plate; 504. Limiting ring; 6. Placement slot; 7. Motor; 8. First gear; 9. Spiral drill rod; 10. Second gear; 11. Lead screw; 12. Sleeve; 13. Base; 14. Fixing rod; 15. Fixing seat; 16. Column; 17. Crossbar; 18. Limiting rod; 19. Extension block; 20. Support block; 21. Groove. Detailed Implementation

[0021] The present invention will now be further described in conjunction with the accompanying drawings and specific embodiments. It should be noted that, without conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.

[0022] Example 1: Please refer to Figure 1 - Figure 4 This embodiment of a natural resource soil sampling device includes a vehicle body 1 and a sampling mechanism. A pull rod 3 is fixedly connected to one end of the vehicle body 1, and a fixing screw 4 is provided at one end of the vehicle body 1. The bottom end of the fixing screw 4 is threadedly connected to the inside of the vehicle body 1. A limit screw 5 is provided at the other end of the vehicle body 1. A flap 2 is hingedly connected to one end of the vehicle body 1. The sampling mechanism is installed on the top of the flap 2. The sampling mechanism includes a motor 7 and a spiral drill rod 9. A fixed seat 15 is provided at the bottom of the motor 7. A first gear 8 is fixedly connected to the bottom of the motor 7. A spiral drill rod 9 is fixedly connected to the bottom of the first gear 8. A second gear 10 is meshed at one end of the first gear 8. A lead screw 11 is fixedly connected to the middle of the second gear 10. A sleeve 12 is threadedly connected to the bottom end of the lead screw 11. The bottom end of the sleeve 12 is fixedly connected to the top of the flap 2. Two fixed rods 14 are fixedly connected to both ends of two bases 13 respectively. One end of each fixed rod 14 is fixedly connected to one end of the fixed seat 15. When soil sampling is required, the pull rod 3 is pulled to move the vehicle body 1 to the designated position. Then, the fixing screw 4 and the limiting screw 5 are rotated respectively to insert the fixing screw 4 and the limiting screw 5 into the soil. Thus, the fixing screw 4 and the limiting screw 5 form a bidirectional fixation. The screw is screwed into the soil using the thread meshing principle. The displacement of the vehicle body is limited by friction and soil bearing capacity. The flip plate 2 is hinged to the vehicle body 1 and can be flipped around the hinge point. The sampling mechanism is fixed to the flip plate 2 through the base 13 to achieve folding and storage during transportation. The power core of the sampling mechanism is the motor 7, which achieves power splitting through the meshing of the first gear 8 and the second gear 10, and simultaneously drives the spiral drill rod 9 to rotate and the lead screw 11 to transmit power. Then, start motor 7. Motor 7 will drive the first gear 8 to rotate. The first gear 8 will drive the auger rod 9 to rotate. When the first gear 8 rotates, it will drive the second gear 10 to rotate. The second gear 10 will drive the lead screw 11 to rotate. The lead screw 11 will move downward along the inside of the sleeve 12. The sleeve 12 will drive the base 13 to move downward. The base 13 will drive the two fixed rods 14 to move downward through the connecting rod. The two fixed rods 14 will drive the fixed seat 15 to move downward. The fixed seat 15 will drive the first gear 8 and the auger rod 9 to move downward. Thus, while the auger rod 9 moves downward, it will rotate downward along the soil, thereby extracting deep soil for easy sampling. Furthermore, the top two ends of the flap 2 are fixedly connected to the columns 16, the top of the columns 16 are fixedly connected to the crossbar 17, one end of the crossbar 17 is fixedly connected to the limit rod 18, one end of the fixed rod 14 is movably connected to the outside of the limit rod 18, the first gear 8 is rotatably connected to the inside of the fixed seat 15, and the second gear 10 is located on the top of the base 13. By setting the limit rod 18, the limit rod 18 will limit the movement of the fixed rod 14, so that the fixed rod 14 drives the fixed seat 15 to move downward and maintains a stable state. At the same time, the fixed rod 14 will move downward synchronously and stably with the base 13 through the connecting rod. Furthermore, the lead screw 11 is rotatably connected to the inside of the base 13, and a fixed frame is fixedly connected between the two columns 16. The top of the lead screw 11 is rotatably connected to the bottom of the fixed frame. When the second gear 10 rotates, the second gear 10 will drive the top of the lead screw 11 to rotate at the bottom of the fixed frame between the two columns 16, and the lead screw 11 will rotate along the inside of the base 13, thereby causing the second gear 10 and the base 13 to move downward. Furthermore, a support block 20 is fixedly connected to the middle of one end of the flap 2. The support block 20 is located on one side of the bottom of the spiral drill rod 9. By setting the support block 20, the support block 20 will support the bottom of the spiral drill rod 9. After the sampling mechanism is placed, the support block 20 will be located below one end of the spiral drill rod 9, so that the support block 20 will support and limit the bottom of the spiral drill rod 9. The limiting rod 18 and the fixed rod 14 form a sliding guide mechanism, which restricts the fixed rod to move only along the axial direction of the limiting rod, thus avoiding lateral deviation during the feeding process and ensuring vertical sampling of the drill rod by using guide constraints. The column 16 and the crossbar 17 form a rigid frame, and the top of the lead screw 11 is rotatably connected to the fixed frame. The coaxiality of the lead screw drive is improved by two-point support, which reduces rotational vibration. The support block 20 is made of rigid material and supports the bottom of the spiral drill rod 9 by surface contact. The static friction is used to balance the weight of the drill rod itself, thus preventing the drill rod from tilting downwards and causing guide damage when not in operation.

[0023] Example 2: Based on Example 1, this example introduces the specific structure of the limiting screw 5. The limiting screw 5 includes a handwheel 501 and a threaded rod 502. The top of the threaded rod 502 is fixedly connected to the bottom of the handwheel 501. The top of the threaded rod 502 is rotatably connected to a pressure plate 503. One end of the pressure plate 503 is located at the top of the flip plate 2. The bottom of the threaded rod 502 is fixedly connected to two limiting rings 504. The pressure plate 503 is located between the two limiting rings 504. A placement groove 6 is machined on the top of one end of the vehicle body 1. One end of the base 13 is inserted into the interior of the placement groove 6. When the sampling mechanism needs to be moved, it is laid down to facilitate transportation. By turning the handwheel 501, the handwheel 501 will drive the threaded rod 502 to rotate. The threaded rod 502 will move upward along the inside of the vehicle body 1. The threaded rod 502 will drive the pressure plate 503 to move upward. The pressure plate 503 is limited by two limit rings 504 to prevent the pressure plate 503 from moving up and down along the outside of the threaded rod 502, so that the pressure plate 503 rotates horizontally along the outside of the threaded rod 502. Furthermore, the bottom of the threaded rod 502 is threadedly connected to the inside of the vehicle body 1. The top of the vehicle body 1 is machined with a groove 21, and the limiting ring 504 is located inside the groove 21. By setting the groove 21, when the pressure plate 503 contacts the top surface of the flip plate 2, the lower limiting ring 504 moves into the groove 21, thereby pressing and fixing the flip plate 2 to prevent the sampling mechanism from moving. At the same time, the threaded rod 502 is screwed into the soil, and the vehicle body displacement is limited by friction and soil bearing capacity. The pressure plate 503 is restricted from axial displacement by two limiting rings 504, and can only rise and fall synchronously with the threaded rod and rotate horizontally, ensuring that the pressure plate and the top surface of the flip plate 2 are tightly fitted. The groove 21 provides a space for the limiting rings 504, so that the pressure plate 503 can completely fit the flip plate 2, and fix the flip plate by the static friction force generated by the pressure, so as to prevent the sampling mechanism from being displaced due to vibration or gravity. After the limiting screw 5 is released, the flip plate 2 can be flipped and laid down around the hinge point, reducing the overall volume of the device. The folding structure reduces the space occupied during transportation, which is in line with the principle of portable design. Working Principle: By rotating the fixed screw 4 and the limiting screw 5, the axial feed characteristic of the threaded transmission is utilized to insert the bottom end of the screw into the soil. The lateral constraint force of the soil on the screw and the screw's own pull-out resistance combine to form a stable fixed fulcrum, preventing the vehicle body from shaking during sampling. The torque output of the motor 7 drives the first gear 8 to rotate, and the power is transmitted to the second gear 10 through gear meshing, realizing the matching conversion of speed and torque. The first gear 8 directly drives the spiral drill rod 9 to rotate, and the helical helix angle principle of the spiral blades is used to convert the rotational motion into soil cutting and conveying force, so that the deep soil rises along the blades to the sampling area. The second gear 10 drives the lead screw 11 to rotate synchronously. The lead screw and the sleeve 12 form a spiral transmission pair, converting the rotational motion into axial feed motion. The sleeve 12 is fixed to the flip plate 2, so the lead screw 11 drives the base 13, the fixed rod 14 and the fixed seat 15 to move downward as a whole, realizing the synchronous feed of the spiral drill rod 9.

[0024] The above embodiments are merely preferred embodiments of the present invention and should not be construed as limiting the scope of protection of the present invention. Any non-substantial changes and substitutions made by those skilled in the art based on the present invention shall fall within the scope of protection claimed by the present invention.

Claims

1. A natural resource soil sampling device comprising a vehicle body (1) and a sampling mechanism, characterised in that, One end of the car body (1) is fixedly connected with a pull rod (3), one end of the car body (1) is provided with a fixed screw rod (4), the bottom end of the fixed screw rod (4) is threadedly connected in the inside of the car body (1), the other end of the car body (1) is provided with a limiting screw rod (5), one end of the car body (1) is hingedly connected with a flap (2), the sampling mechanism is installed on the top of the flap (2), the sampling mechanism comprises a motor (7) and a spiral drill rod (9), the bottom of the motor (7) is provided with a fixing seat (15), the bottom of the motor (7) is fixedly connected with a first gear (8), the bottom of the first gear (8) is fixedly connected with the spiral drill rod (9), one end of the first gear (8) is engagedly connected with a second gear (10), the middle of the second gear (10) is fixedly connected with a lead screw (11), the bottom end of the lead screw (11) is threadedly connected with a sleeve (12), the bottom end of the sleeve (12) is fixedly connected with the top of the flap (2), the bottom of the second gear (10) is provided with a base (13), the two ends of two base (13) are respectively fixedly connected with two fixed rods (14), one end of two fixed rods (14) is respectively fixedly connected with one end of the fixing seat (15).

2. A natural resource soil sampling device according to claim 1, wherein, The top of the flap (2) is fixedly connected with a stand (16), the top of the stand (16) is fixedly connected with a cross bar (17), one end of the cross bar (17) is fixedly connected with a limiting rod (18), one end of the fixed rod (14) is movably connected outside the limiting rod (18).

3. The natural resource soil sampling device of claim 1, wherein, The first gear (8) is rotatably connected in the inside of the fixing seat (15), the lead screw (11) is rotatably connected in the inside of the base (13).

4. The natural resource soil sampling device of claim 2, wherein, Two stands (16) are fixedly connected with a fixing frame, the top of the lead screw (11) is rotatably connected with the bottom of the fixing frame.

5. The natural resource soil sampling device of claim 2, wherein, One end of the flap (2) is fixedly connected with two extension blocks (19), the bottom of the limiting rod (18) is fixedly connected with the top of the extension block (19).

6. The natural resource soil sampling device of claim 1, wherein, One end of the flap (2) is fixedly connected with a supporting block (20), the supporting block (20) is located on one side of the bottom of the spiral drill rod (9).

7. The natural resource soil sampling device of claim 1, wherein, The limiting screw rod (5) comprises a hand wheel (501) and a threaded rod (502), the top of the threaded rod (502) is fixedly connected with the bottom of the hand wheel (501).

8. The natural resource soil sampling device of claim 1, wherein, The top of the threaded rod (502) is rotatably connected with a pressing plate (503), one end of the pressing plate (503) is located on the top of the flap (2), the bottom of the threaded rod (502) is fixedly connected with two limiting rings (504), the pressing plate (503) is located between the two limiting rings (504).

9. A natural resource soil sampling device according to claim 8, wherein, The bottom of the threaded rod (502) is threadedly connected in the inside of the car body (1), the top of the car body (1) is processed with a groove (21), the limiting ring (504) is located in the inside of the groove (21).

10. The natural resource soil sampling device of claim 1, wherein, One end of the car body (1) is processed with a placing groove (6), one end of the base (13) is inserted in the inside of the placing groove (6).

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