A soil collection device

Abstract

The utility model belongs to soil sampling technical field discloses a kind of soil collection device. Soil collection device includes collection mechanism, protection mechanism and transmission mechanism. Collection mechanism includes multiple collection cylinder with collection port, and one auger is rotatably arranged in each collection cylinder, and the auger can be rotated to transport the soil at collection port into collection cylinder;Protection mechanism includes box and the cover plate movably connected to box, and the bottom of box is provided with avoiding slot, and collection cylinder can be worn out from avoiding slot;Transmission mechanism includes fixed assembly, first transmission assembly and driving part, and fixed assembly can clamp collection mechanism, and the input end of first transmission assembly is rotatably connected to box, and the output end is fixedly connected to fixed assembly, and first transmission assembly can drive collection mechanism to move along vertical direction, and driving part can drive auger to rotate. The soil collection device provided by the utility model can simultaneously carry out soil collection work on multiple points, improving work efficiency.

Description

Technical Field

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

[0002] In geological exploration, geological sampling is a crucial process. By analyzing the samples, the composition, quality, and physical and mechanical properties of the geological formation are determined, thereby identifying the technical conditions required for mining. The geological sampling process includes stages such as taking raw samples from the geological body, processing the samples, conducting tests, and organizing and studying the test data.

[0003] In existing technologies, geological soil sampling requires the use of sampling devices to insert sampling drill bits deep into the ground to collect samples from strata at different depths in the area. After the samples are collected by the sampling drill bit, they are retrieved to the laboratory to study their soil characteristics and obtain data. However, existing sampling devices can only perform single-point sampling. After completing one sampling, the device needs to be retrieved before sampling at other locations. It is not possible to sample multiple locations simultaneously, which is time-consuming, labor-intensive, and inefficient. Furthermore, when sampling soil, the soil characteristics need to be judged by the staff based on experience, which is difficult to operate and prone to errors due to human judgment, resulting in the collection of undesirable soil samples and low work efficiency. Utility Model Content

[0004] The purpose of this invention is to provide a soil collection device to improve the efficiency of soil collection by workers.

[0005] To achieve this objective, the present invention adopts the following technical solution:

[0006] A soil sampling device, comprising:

[0007] The collection mechanism includes multiple collection cylinders, each of which is rotatably equipped with an auger. The bottom end of the collection cylinder is provided with a collection port, and a sensor is provided at the collection port. The auger can rotate to transport the soil at the collection port into the collection cylinder.

[0008] The protective mechanism includes a housing and a cover plate, the cover plate being movably connected to the top of the housing, the housing being connected to wheels, the bottom of the housing having a clearance groove, and a collection mechanism being provided inside the housing, with at least a portion of the collection tube able to pass through the clearance groove and exit the housing.

[0009] The transmission mechanism includes a fixed component, a first transmission component, and a driving component. The fixed component is slidably connected to the inner wall of the housing and can clamp the collecting mechanism. The input end of the first transmission component is fixedly connected to the housing, and the output end of the first transmission component is fixedly connected to the fixed component. The first transmission component can drive the collecting mechanism to move in the vertical direction. The driving component is connected to the auger and can drive the auger to rotate.

[0010] The aforementioned soil collection device includes a fixing component comprising multiple fixing hoops and multiple connecting blocks. Each collection cylinder is connected to a fixing hoop, and each fixing hoop has a connecting block fixedly connected to both sides. All the connecting blocks are collinear, so that the collection cylinders are arranged in a linear array. Two connecting blocks near the inner wall of the box are slidably connected to the box.

[0011] In the aforementioned soil collection device, the inner wall of the housing has two sliding grooves, which are arranged opposite to each other. The connecting block is slidably connected to the sliding grooves to drive the collection cylinder to move.

[0012] In the aforementioned soil sampling device, the first transmission component includes a first motor, a transmission shaft, a gear, and a rack. One end of the first motor is fixedly connected to the housing, and the output end of the first motor is drivenly connected to the transmission shaft. The transmission shaft rotatably passes through the housing, and the gear is fixedly connected to the transmission shaft. The rack is fixedly connected to the connecting block and extends vertically, and the gear can mesh with the rack.

[0013] The aforementioned soil sampling device further includes a second transmission component, which is disposed above the clearance groove and is capable of closing the clearance groove.

[0014] In the aforementioned soil sampling device, the second transmission component includes a second motor, a bidirectional screw, and two baffles. One end of the second motor is fixedly connected to the housing, and the output end of the second motor is drivenly connected to the bidirectional screw. The bidirectional screw rotates through the housing, and the two baffles are respectively screwed to both ends of the bidirectional screw. The rotation of the bidirectional screw can drive the two baffles to move closer together to close the clearance groove.

[0015] In the aforementioned soil sampling device, the second transmission component further includes a limiting rod that passes through the housing and the two baffles, with the axis of the limiting rod parallel to the axis of the bidirectional screw.

[0016] In the aforementioned soil collection device, each collection cylinder is fixedly equipped with a driving component, and the driving component and the auger inside each collection cylinder are connected by a coupling.

[0017] In the aforementioned soil collection device, the traveling wheel is located at the bottom of the housing, and the traveling wheel is a swivel wheel.

[0018] The aforementioned soil collection device includes an operating handle fixedly connected to the housing, and the operating handle has anti-slip grooves.

[0019] The beneficial effects of this utility model are:

[0020] The soil collection device provided by this utility model includes a collection mechanism comprising multiple collection cylinders and a transmission mechanism comprising a fixing component and a first transmission component. The fixing component clamps the collection mechanism, fixing the multiple collection cylinders in place. The first transmission component drives the collection mechanism to descend and penetrate deeper into the soil, allowing multiple collection cylinders to simultaneously penetrate the soil and collect soil from multiple locations at the same time, thus improving work efficiency. A drive unit rotates an auger, transporting soil from the collection port of each collection cylinder into the cylinder, avoiding external environmental interference and maintaining the soil's original state, thereby improving the accuracy of subsequent testing and analysis. A sensor at the collection port detects the soil condition, eliminating the need for personnel to rely on experience, reducing difficulty, and the sensor's high accuracy facilitates the collection of ideal soil, further improving work efficiency. Attached Figure Description

[0021] Figure 1 This is a first structural schematic diagram of the soil collection device provided in this embodiment of the utility model;

[0022] Figure 2 This is a second structural schematic diagram of the soil collection device provided in this embodiment of the present invention;

[0023] Figure 3 This is a cross-sectional view of the soil collection device provided in this embodiment of the utility model;

[0024] Figure 4 This is a partial structural schematic diagram of the soil collection device provided in this embodiment of the utility model;

[0025] Figure 5 This is a schematic diagram showing the cooperation between the collection mechanism and the transmission mechanism provided in this embodiment of the utility model;

[0026] Figure 6 This is a schematic diagram of the structure of the second transmission component provided in an embodiment of the present invention.

[0027] In the picture:

[0028] 1. Collection mechanism; 11. Collection cylinder; 111. Collection port; 12. Screwdriver; 13. Sensor; 14. Cover;

[0029] 2. Protective mechanism; 21. Housing; 211. Clearance groove; 212. Sliding groove; 22. Cover plate;

[0030] 3. Wheels;

[0031] 4. Transmission mechanism; 41. Fixing assembly; 411. Fixing clamp; 412. Connecting block; 4121. Connecting part; 4122. Sliding part; 42. First transmission assembly; 421. First motor; 422. Transmission shaft; 423. Gear; 424. Rack; 43. Driving component; 44. Second transmission assembly; 441. Second motor; 442. Bidirectional screw; 443. Baffle plate; 4431. Threaded part; 4432. Baffle part;

[0032] 5. Operating handle;

[0033] 6. Controller. Detailed Implementation

[0034] The embodiments of this utility model are described in detail below. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar parts or parts having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this utility model, and should not be construed as limiting this utility model.

[0035] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection or a detachable connection; a mechanical connection or an electrical connection; a direct connection or an indirect connection through an intermediate medium; or the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0036] In the description of this utility model, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0037] The technical solution of this utility model will be further described below with reference to the accompanying drawings and specific embodiments.

[0038] This invention provides a soil collection device that can collect soil samples from multiple locations simultaneously, thereby improving the efficiency of soil collection by workers.

[0039] like Figures 1 to 6 As shown, the soil collection device includes a collection mechanism 1, a protection mechanism 2, and a transmission mechanism 4. The collection mechanism 1 includes multiple collection cylinders 11, each containing a rotating auger 12. A collection port 111 is located at the bottom of each collection cylinder 11, and a sensor 13 is installed at the collection port 111. The auger 12 can rotate to transport soil from the collection port 111 into the collection cylinder 11. The protection mechanism 2 includes a housing 21 and a cover plate 22. The cover plate 22 is movably connected to the top of the housing 21. The housing 21 is connected to wheels 3, and a clearance groove 211 is located at the bottom of the housing 21. The housing 21 is equipped with a collection mechanism 1, and at least a portion of the collection cylinder 11 can pass through the clearance groove 211. The transmission mechanism 4 includes a fixing component 41, a first transmission component 42, and a driving component 43. The fixing component 41 is slidably connected to the inner wall of the housing 21 and can clamp the collection mechanism 1. The input end of the first transmission component 42 is fixedly connected to the housing 21, and the output end of the first transmission component 42 is fixedly connected to the fixing component 41. The first transmission component 42 can drive the collection mechanism 1 to move in the vertical direction. The driving component 43 is connected to the auger 12 and can drive the auger 12 to rotate.

[0040] The soil collection device provided by this utility model includes a collection mechanism 1 comprising multiple collection cylinders 11, and a transmission mechanism 4 comprising a fixing component 41 and a first transmission component 42. The fixing component 41 clamps the collection mechanism 1, fixing the multiple collection cylinders 11 in place. The first transmission component 42 drives the collection mechanism 1 to descend deeper into the soil, allowing multiple collection cylinders 11 to simultaneously penetrate the soil and collect soil from multiple locations at the same time, thus improving work efficiency. The driving component 43 drives the auger 12 to rotate, transporting soil from the collection port 111 of the collection cylinders 11 into the collection cylinders 11, avoiding interference from the external environment, maintaining the original state of the soil, and improving the accuracy of subsequent detection and analysis. The sensor 13 at the collection port 111 can detect the soil condition, eliminating the need for staff to rely on experience for judgment, reducing difficulty, and the sensor 13 has high detection accuracy, facilitating the collection of ideal soil and improving work efficiency.

[0041] This embodiment does not specifically limit the shape of the housing 21. For example, the cross-section of the housing 21 is rectangular, which is convenient for processing. Correspondingly, the cover plate 22 is a rectangular plate, which provides a better sealing effect for the housing 21.

[0042] The housing 21 and the cover plate 22 can be rotatably connected or slidably connected. Optionally, the housing 21 and the cover plate 22 are rotatably connected, and the housing 21 and the cover plate 22 are hinged by a hinge. Hinges are conventional devices in the art, easy to obtain, and convenient to connect.

[0043] Optionally, the housing 21 and the cover plate 22 are slidably connected, and the housing 21 and the cover plate 22 are connected by a slide rail. The slide rail is a conventional device in the art and is easy to obtain. Specifically, a ball bearing slide rail can be selected, which has a simple structure and is easy to install.

[0044] The bottom of the housing 21 has a clearance groove 211 to allow the collection cylinder 11 to pass through. The size of the clearance groove 211 is slightly larger than the outer diameter of the collection cylinder 11, so that the collection cylinder 11 can pass through the clearance groove 211. For example, see... Figure 2 and Figure 3 The clearance groove 211 includes three circular grooves for clearing the collection cylinder 11. A rectangular groove is provided between two adjacent circular grooves and the rectangular groove is connected to the circular groove. The rectangular groove is used to clear the connecting block 412.

[0045] The traveling wheel 3 can be connected to the side of the housing 21 or to the bottom of the housing 21. For example, the traveling wheel 3 is set at the bottom of the housing 21. The traveling wheel 3 is a universal wheel. The traveling wheel 3 is set at the bottom of the housing 21, which can reduce the installation space and provide better support for the housing 21. The universal wheel has more flexibility and can improve the smoothness of movement.

[0046] Specifically, the housing 21 is equipped with four wheels 3, which are arranged in a rectangular pattern at the four corners of the bottom rectangle of the housing 21. This allows the wheels to evenly bear the load of the housing 21, preventing uneven load distribution from exacerbating the wear of any particular wheel 3 and improving its service life.

[0047] In other embodiments, the housing 21 is connected to two wheels 3, which are rotatably connected to two opposite sides of the housing 21.

[0048] In order to facilitate the operation of the soil collection device, in this embodiment, an operating handle 5 is fixedly connected to the housing 21. The operating handle 5 is provided with anti-slip grooves to facilitate the staff to hold the operating handle 5 and push the soil collection device.

[0049] Specifically, the operating handle 5 is a steel column, which is welded to the side of the housing 21. The anti-slip groove extends along the axial direction of the operating handle 5 and is evenly spaced around the outer surface of the operating handle 5 along the circumferential direction.

[0050] The top of the cover plate 22 is equipped with a controller 6 and a power supply. The controller 6 can process the data from the sensor 13 for easy analysis by the staff, and the power supply is used for power supply. Optionally, the controller 6 is a PLC controller, specifically, a CPU 1513R-1PN from the Siemens S7-1500R / H series. This controller 6 has a display screen, which makes it easy for the staff to view the data from the sensor 13 and improves work efficiency.

[0051] This embodiment does not specifically limit the shape of the collection tube 11. For example, see [link to example]. Figure 3 and Figure 5 The top of the collecting cylinder 11 is covered with a cap 14, and the bottom of the collecting cylinder 11 has an opening. The collecting cylinder 11 has a circular cross-section, and the bottom of the collecting cylinder 11 is provided with an inclined frustum, with the smaller end of the frustum facing downwards. A sensor 13 is provided on the frustum, and the sensor 13 is electrically connected to the controller 6, which can transmit the collected soil information to the controller 6. The cavity inside the frustum is the collecting port 111. The design of the frustum facilitates the insertion of the collecting cylinder 11 into the soil. The collecting cylinder 11 can be integrally cast, which is simple to process.

[0052] Specifically, sensor 13 includes constant sensor 13, trace sensor 13 and rare earth element sensor 13. Sensor 13 can detect the actual moisture content in the soil and transmit the data to controller 6. After understanding the soil moisture data, staff can accurately sample wet and dry soil, improving the efficiency of soil collection.

[0053] To drive the auger 12 to rotate, a drive unit 43 is fixedly installed inside each collection cylinder 11. The drive unit 43 inside each collection cylinder 11 and the auger 12 are connected by a coupling. The auger 12 is directly connected to the drive unit 43 to improve transmission efficiency. Specifically, the drive unit 43 is a third motor, which is fixedly connected to the bottom side of the cover 14 and located inside the collection cylinder 11. The auger 12 extends along the axial direction of the collection cylinder 11, and the shaft of the auger 12 is connected to the drive unit 43 by a coupling.

[0054] In other embodiments, the drive member 43 may also be configured on the outside of the collection tube 11. Specifically, the drive member 43 is fixedly connected to the top side of the cover 14 for easy connection.

[0055] The fixing component 41 is used to fix multiple collection cylinders 11, so that the transmission mechanism 4 drives the multiple collection cylinders 11 to move synchronously. The fixing component 41 includes multiple fixing clamps 411 and multiple connecting blocks 412. Each collection cylinder 11 is connected to a fixing clamp 411, and a connecting block 412 is fixedly connected to each side of each fixing clamp 411. All connecting blocks 412 are collinear, so that the collection cylinders 11 are arranged in a linear array. The two connecting blocks 412 closest to the inner wall of the box 21 are slidably connected to the box 21. The collinear arrangement facilitates connection.

[0056] For example, see Figure 3 and Figure 5 The transmission mechanism 4 includes three collecting cylinders 11, and the fixing component 41 includes three fixing hoops 411 and six connecting blocks 412. The fixing hoops 411 are fixed to the top of the collecting cylinders 11, and the fixing hoops 411 and the connecting blocks 412 can be fixed by welding, which is convenient for connection.

[0057] Specifically, each fixing clamp 411 adopts a split design, comprising two semi-annular sleeves. This structure not only facilitates installation but also conforms to the outer contour of the collecting cylinder 11. Positioning plates extend vertically from both ends of each sleeve, and through holes are provided on the positioning plates for bolts to pass through.

[0058] In use, clamp the two sleeves onto both sides of the collecting cylinder 11, aligning them with the through holes on the positioning plate. Insert the existing bolts through the through holes of the two sleeves in sequence, and secure them with nuts to clamp the two sleeves onto the collecting cylinder 11. The bolt connection allows the fixing clamp 411 to be detachably connected to the collecting cylinder 11, facilitating replacement and maintenance of the collecting cylinder 11. The connecting block is fixedly connected to the middle part of the sleeves.

[0059] In other embodiments, four collection cylinders 11 may be provided, arranged in a rectangular pattern and positioned at the four corner points of the rectangle. This embodiment provides specific limitations on the number and arrangement of the collection cylinders 11, and those skilled in the art can design the arrangement of the collection cylinders 11 according to actual usage needs.

[0060] The connecting block 412 is slidably connected to the housing 21 to drive the collection cylinder 11 to move. For example, the inner wall of the housing 21 has two sliding grooves 212, which are arranged opposite to each other. The connecting block 412 is slidably connected to the sliding grooves 212 to drive the collection cylinder 11 to move. The sliding grooves 212 are simple to manufacture, and the opposite arrangement of the two sliding grooves 212 can improve the stability of the movement of the connecting block 412.

[0061] The sliding groove 212 can be a U-shaped groove, a V-shaped groove, or a T-shaped groove. Optionally, the sliding groove 212 is a T-shaped groove. The two connecting blocks 412 near the inner wall of the housing 21 include a connecting part 4121 and a sliding part 4122 connected to each other. The connecting part 4121 is connected to the fixing hoop 411, and the sliding part 4122 slides inside the sliding groove 212. The sliding part 4122 is a T-shaped block. The sliding groove 212 restricts the degree of freedom of the sliding part 4122, so that the sliding part 4122 can only move along the length direction of the sliding groove 212, preventing the connecting block 412 from disengaging from the sliding groove 212 in a direction perpendicular to the length direction of the sliding groove 212, thereby improving the movement stability of the connecting block 412.

[0062] Specifically, the sliding groove 212 extends vertically, and the top of the sliding groove 212 is flush with the top of the box 21. After the cover plate 22 is opened, the connecting block 412 can slide out of the sliding groove, making it easy to take out the collection cylinder 11 for maintenance and replacement. The bottom end of the sliding groove 212 extends to the bottom surface of the box 21, and the bottom surface of the box 21 can block the slider to prevent the connecting block 412 from sliding out of the box 21.

[0063] The transmission mechanism 4 is used to drive the collecting mechanism 1 to move up and down. In this embodiment, see [reference needed]. Figure 5The first transmission assembly 42 includes a first motor 421, a transmission shaft 422, a gear 423, and a rack 424. One end of the first motor 421 is fixedly connected to the housing 21, and the output end of the first motor 421 is drive-connected to the transmission shaft 422. The transmission shaft 422 rotatably passes through the housing 21, and the gear 423 is fixedly connected to the transmission shaft 422. The rack 424 is fixedly connected to the connecting block 412 and extends vertically. The gear 423 can mesh with the rack 424. The arrangement of the gear 423 and the rack 424 is simple, and the meshing of the gear 423 and the rack 424 is stable, improving stability.

[0064] The first motor 421 can be located inside or outside the housing 21. For example, the first motor 421 is fixed to the outside of the housing 21 by a first mounting bracket, facilitating connection to a power source. One end of the drive shaft 422 is connected to the first motor 421 via a coupling, and the other end is rotatably connected to the housing 21 via a bearing, allowing for smoother rotation of the drive shaft 422.

[0065] See Figure 5 The first transmission assembly 42 includes two gears 423 and two racks 424. One rack 424 is disposed between two connecting blocks 412 between two collecting cylinders 11 near the first motor 421, and the other rack 424 is disposed between two connecting blocks 412 between two collecting cylinders 11 away from the first motor 421. The sides of the racks 424 are connected to the connecting blocks 412, reducing installation space. The two racks 424 are fixedly connected to the transmission shaft 422 and can mesh with each other.

[0066] The rack 424 and the connecting block 412 can be fixed by welding or by bonding. For example, the rack 424 and the connecting block 412 are fixed by welding, which is simple to operate and provides a strong connection. It should be noted that, to ensure stable meshing between the gear 423 and the rack 424, the smooth, toothless side of the rack 424 is welded to the connecting block 412 during welding. This avoids deformation, warping, or stress concentration in the toothed area due to high temperatures, ensuring the meshing accuracy of the gear 423 and the rack 424 and improving their service life.

[0067] When in use, the first motor 421 is turned on, and the first motor 421 rotates forward to drive the transmission shaft 422 to rotate. The transmission shaft 422 drives the gear 423 on it to rotate. The gear 423 meshes with the rack 424, causing the rack 424 to descend. Since the rack 424 is fixedly connected to the connecting block 412 and the fixing hoop 411, and the fixing hoop 411 clamps the collection cylinder 11, the descent of the rack 424 will cause the collection cylinder 11 to descend, and then the self-avoiding groove 211 will pass through the box 21 to extend into the soil.

[0068] Motor 421 reverses to drive transmission shaft 422 to rotate, and transmission shaft 422 drives gear 423 on it to rotate. Gear 423 meshes with rack 424, causing rack 424 to rise. Since rack 424 is fixedly connected to connecting block 412 and fixedly connected to fixing hoop 411, fixing hoop 411 clamps collecting cylinder 11. Therefore, the rise of rack 424 will drive collecting cylinder 11 to rise and then return to collecting cylinder 11.

[0069] It should be noted that, due to the meshing of gear 423 and rack 424, the collecting cylinder 11 can remain in a fixed position after the first motor 421 is turned off.

[0070] It should be noted that this embodiment is only illustrated using three collection cylinders 11 as an example. In actual design, the number and arrangement of collection cylinders 11 can be determined according to actual needs, thereby fixing the rack 424 and the connecting block 412.

[0071] In other embodiments, a lead screw and nut mechanism can be used to drive the collecting cylinder 11 to move in the vertical direction. Specifically, the connecting block 412 has a threaded hole, and a threaded rod is screwed into the threaded hole. The threaded rod is connected to the first motor 421 for transmission. The first motor 421 drives the threaded rod to rotate, thereby driving the collecting cylinder 11 to move.

[0072] To reduce soil from entering the housing 211 through the clearance groove 211 and adhering to the gear 423 and / or rack 424, thus preventing unstable meshing between the gear 423 and rack 424, in this embodiment, the transmission mechanism 4 further includes a second transmission assembly 44. The second transmission assembly 44 is disposed above the clearance groove 211 and can seal the clearance groove 211, improving the sealing of the housing 21 and ensuring stable movement of the transmission mechanism 4.

[0073] Specifically, see Figure 2 , Figure 5 and Figure 6 The second transmission assembly 44 includes a second motor 441, a bidirectional screw 442, and two baffles 443. One end of the second motor 441 is fixedly connected to the housing 21, and the output end of the second motor 441 is drivenly connected to the bidirectional screw 442. The bidirectional screw 442 rotates through the housing 21, and the two baffles 443 are respectively screwed to both ends of the bidirectional screw 442. The rotation of the bidirectional screw 442 can drive the two baffles 443 to move closer to close the clearance groove 211.

[0074] The second motor 441 can be located inside or outside the housing 21. For example, the second motor 441 is fixed to the outside of the housing 21 by a second mounting bracket, facilitating connection to a power source. One end of the bidirectional screw 442 is connected to the first motor 421 via a coupling, and the other end of the bidirectional screw 442 is rotatably connected to the housing 21 via a bearing.

[0075] Specifically, the baffle plate 443 includes a threaded portion 4431 and a baffle portion 4432, which are fixedly connected. The threaded portion 4431 is a sleeve with internal threads, and the threaded portions 4431 of the two baffle plates 443 are respectively screwed to both ends of the bidirectional screw 442.

[0076] When in use, the second motor 441 is turned on, and the second motor 441 rotates forward, driving the bidirectional screw 442 to rotate. The two threaded parts 4431 move away from each other along the axial direction of the bidirectional screw 442, causing the blocking parts 4432 to move away from each other, so that the collecting cylinder 11 can pass through the avoidance groove 211.

[0077] The second motor 441 reverses to drive the bidirectional screw 442 to rotate. The two threaded parts 4431 move closer to each other along the axial direction of the bidirectional screw 442, causing the blocking parts 4432 to move closer to each other, so that the two blocking plates 443 are aligned to close the clearance groove 211 and improve the sealing performance.

[0078] To ensure that the baffle plate 443 can only move along the axial direction of the bidirectional screw 442, the second transmission assembly 44, exemplarily, also includes a limiting rod. The limiting rod passes through the housing 21 and the two baffle plates 443, and the axis of the limiting rod is parallel to the axis of the bidirectional screw 442. The limiting rod restricts the degree of freedom of the baffle plate 443, so that the baffle plate 443 can only move along the axial direction of the bidirectional screw 442.

[0079] In other embodiments, the housing 21 has a limiting groove, at least a portion of the baffle plate 443 slides within the limiting groove, and the groove wall of the limiting groove blocks the baffle plate 443 so that the baffle plate 443 can only move in the axial direction of the bidirectional screw 442.

[0080] In use, the soil collection device provided by this utility model involves the operator holding the handle 5 and pushing the device to the work site. The second motor 441 is then turned on, causing the bidirectional screw 442 to rotate. The two threaded portions 4431 move away from each other along the axial direction of the bidirectional screw 442, causing the blocking portions 4432 to move away from each other, thus opening the clearance groove 211. Next, the first motor 421 is turned on, driving the transmission shaft 422 to rotate. The transmission shaft 422 drives the gear 423 on it to rotate. The gear 423 meshes with the rack 424, causing the collection mechanism 1 to descend. The collection cylinder 11 passes through the clearance groove 211 and penetrates deep into the ground. The soil data detected by the sensor 13 at the collection port 111 is transmitted to the controller 6. The controller 6 analyzes and processes the soil data. The operator determines the stopping position of the collection cylinder 11 based on the data displayed on the controller 6's screen for accurate sampling. Finally, the drive unit 43 is turned on, driving the auger 12 to rotate and transport the soil into the collection cylinder 11.

[0081] After collecting the soil data, the drive unit 43 is turned off to stop the auger 12 from rotating, and the first motor 421 is turned on. The first motor 421 reverses to drive the transmission shaft 422 to rotate. The transmission shaft 422 drives the gear 423 on it to rotate. The gear 423 meshes with the rack 424, driving the collection mechanism 1 to rise. After the collection mechanism 1 has moved completely into the collection cylinder 11, the first motor 421 is turned off and the second motor 441 is turned on. The second motor 441 reverses to drive the bidirectional screw 442 to rotate. The two threaded parts 4431 move closer to each other along the axial direction of the bidirectional screw 442, causing the blocking parts 4432 to move closer to each other to close the clearance groove 211.

[0082] Afterwards, staff can open the cover 22, take out the collection cylinder 11, and bring it back to the laboratory for data analysis. The collection cylinder 11 can reduce soil moisture evaporation and improve the accuracy of the analysis results.

[0083] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the present utility model, and are not intended to limit the implementation of the present utility model. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. A soil sampling device, characterized in that, include: The collection mechanism (1) includes multiple collection cylinders (11), each collection cylinder (11) is rotatably equipped with an auger (12), the bottom end of the collection cylinder (11) is provided with a collection port (111), a sensor (13) is provided at the collection port (111) of the collection cylinder (11), and the auger (12) is able to rotate to transport the soil at the collection port (111) into the collection cylinder (11); The protective mechanism (2) includes a box (21) and a cover plate (22). The cover plate (22) is movably connected to the top of the box (21). The box (21) is connected to a walking wheel (3). A clearance groove (211) is provided at the bottom of the box (21). A collection mechanism (1) is provided inside the box (21). At least part of the collection tube (11) can pass through the clearance groove (211) and exit the box (21). The transmission mechanism (4) includes a fixing component (41), a first transmission component (42), and a driving component (43). The fixing component (41) is slidably connected to the inner wall of the housing (21) and can clamp the collecting mechanism (1). The input end of the first transmission component (42) is fixedly connected to the housing (21), and the output end of the first transmission component (42) is fixedly connected to the fixing component (41). The first transmission component (42) can drive the collecting mechanism (1) to move in the vertical direction. The driving component (43) is connected to the auger (12) and is configured to drive the auger (12) to rotate.

2. The soil sampling device according to claim 1, characterized in that, The fixing component (41) includes multiple fixing hoops (411) and multiple connecting blocks (412). Each collection tube (11) is connected to a fixing hoop (411), and a connecting block (412) is fixedly connected to each side of each fixing hoop (411). All the connecting blocks (412) are collinear, so that the collection tubes (11) are arranged in a linear array. Two connecting blocks (412) close to the inner wall of the box (21) are slidably connected to the box (21).

3. The soil sampling device according to claim 2, characterized in that, The inner wall of the box (21) has two sliding grooves (212), which are arranged opposite to each other. The connecting block (412) is slidably connected to the sliding grooves (212) to drive the collecting cylinder (11) to move.

4. The soil sampling device according to claim 2, characterized in that, The first transmission assembly (42) includes a first motor (421), a transmission shaft (422), a gear (423), and a rack (424). One end of the first motor (421) is fixedly connected to the housing (21), and the output end of the first motor (421) is connected to the transmission shaft (422). The transmission shaft (422) rotatably passes through the housing (21), and the transmission shaft (422) is fixedly connected to the gear (423). The rack (424) is fixedly connected to the connecting block (412) and extends in the vertical direction. The gear (423) can mesh with the rack (424).

5. The soil sampling device according to claim 1, characterized in that, The transmission mechanism (4) further includes a second transmission component (44), which is disposed above the clearance groove (211) and is capable of closing the clearance groove (211).

6. The soil sampling device according to claim 5, characterized in that, The second transmission assembly (44) includes a second motor (441), a bidirectional screw (442), and two baffles (443). One end of the second motor (441) is fixedly connected to the housing (21), and the output end of the second motor (441) is drivenly connected to the bidirectional screw (442). The bidirectional screw (442) rotates through the housing (21), and the two baffles (443) are respectively screwed to both ends of the bidirectional screw (442). The rotation of the bidirectional screw (442) can drive the two baffles (443) to move closer together to close the clearance groove (211).

7. The soil sampling device according to claim 6, characterized in that, The second transmission assembly (44) also includes a limiting rod, which passes through the housing (21) and the two baffles (443), and the axis of the limiting rod is parallel to the axis of the bidirectional screw (442).

8. The soil sampling device according to claim 1, characterized in that, Each of the collecting cylinders (11) is fixedly provided with a driving component (43), and the driving component (43) inside each collecting cylinder (11) and the auger (12) are connected by a coupling.

9. The soil sampling device according to any one of claims 1-8, characterized in that, The traveling wheel (3) is located at the bottom of the box (21), and the traveling wheel (3) is a universal wheel.

10. The soil sampling device according to claim 9, characterized in that, An operating handle (5) is fixedly connected to the box (21), and the operating handle (5) is provided with anti-slip grooves.

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