Soil sampler for land management

Abstract

The present invention discloses a soil sampler for land management, which belongs to the field of land management sampling technology, including a movable seat, a lifting assembly provided on the movable seat, a lifting side plate connected to the lifting assembly, a switching turret rotatably connected to the side wall of the lifting side plate, a vertical sampling mechanism and a horizontal pre-scraping soil sampling mechanism rotatably connected at both ends of the switching turret, an angle conversion mechanism for driving the vertical sampling mechanism and the horizontal pre-scraping soil sampling mechanism to rotate and adjust the angle is provided between the switching turret and the lifting side plate, and a positioning assembly for keeping the switching turret horizontal is provided on the lifting side plate. The soil sampler for land management provided by the present invention can perform both vertical sampling and horizontal sampling to meet different sampling needs, and by pre-scraping the surface soil horizontally before sampling, cross contamination during horizontal sampling is avoided.

Description

Technical Field

[0001] The invention belongs to the technical field of land management sampling, and in particular relates to a soil sampler for land management. Background Art

[0002] Before land treatment, it is necessary to sample the soil in the designated area first, and formulate a corresponding treatment plan by testing the type and content of pollutants in the soil samples. Depending on the sampling direction, soil sampling can be divided into two methods: horizontal sampling and vertical sampling.

[0003] Horizontal sampling refers to the collection of soil samples in a horizontal direction within a certain depth range. Horizontal sampling requires drilling or digging a hole before taking horizontal samples. It is usually used to understand the spatial distribution characteristics of soil at different locations at the same depth, and can reflect the spatial heterogeneity of soil at the same depth. It is suitable for studying soil pollution diffusion, nutrient distribution, etc. Vertical sampling refers to sampling vertically from the surface downward, which is often used to study the vertical change characteristics of the soil and helps to determine whether pollutants are infiltrating. In actual work, it is often necessary to combine the two to fully grasp the spatial and depth characteristics of the soil.

[0004] In the existing technology, most equipment cannot take into account both horizontal and vertical sampling at the same time. In addition, when conducting horizontal sampling, it is necessary to dig a pit first. The vertical section of the pit is easily disturbed during the excavation process, destroying the original soil layer structure, resulting in the mixing of soil at different layers in the vertical section of the pit, and then making the obtained sample layers mixed, affecting the representativeness and accuracy of the sample. Before formal sampling, it is necessary to use tools such as shovels and scrapers to scrape off a layer of the cross-section surface to expose the undisturbed original soil layer, and then conduct horizontal sampling. The existing technology mostly uses manual scraping, which is very inconvenient. Summary of the Invention

[0005] In response to the above situation, in order to overcome the defects of the existing technology, the present invention provides a soil sampler for land management, which can perform both vertical sampling and horizontal sampling to meet different sampling needs, and by pre-scraping the surface soil horizontally before sampling, cross contamination during horizontal sampling can be avoided.

[0006] The technical solution adopted by the present invention is as follows: The present invention provides a soil sampler for land management, including a movable seat, a lifting assembly is provided on the movable seat, a lifting side plate is connected to the lifting assembly, the side wall of the lifting side plate is rotatably connected to a switching turret, and the two ends of the switching turret are respectively rotatably connected to a vertical sampling mechanism and a horizontal pre-scraping soil sampling mechanism, the length from the rotation axis of the vertical sampling mechanism to the rotation axis of the switching turret is equal to the length from the rotation axis of the horizontal pre-scraping soil sampling mechanism to the rotation axis of the switching turret, and a driving mechanism for the vertical sampling mechanism is provided between the switching turret and the lifting side plate. and an angle conversion mechanism for rotating and adjusting the angle of the horizontal pre-scraping soil sampling mechanism. The lifting side plate is provided with a positioning component for keeping the switching turret horizontal. When the switching turret is in a horizontal state, the horizontal pre-scraping soil sampling mechanism and the vertical sampling mechanism remain perpendicular to each other. When the switching turret rotates 180° and becomes horizontal again, the switching turret drives the horizontal pre-scraping soil sampling mechanism and the vertical sampling mechanism to rotate and convert their positions. At the same time, the angle conversion mechanism enables the angles of the horizontal pre-scraping soil sampling mechanism and the vertical sampling mechanism to be converted to each other. A sampling through-hole is penetrated through the movable seat, and a backfill box is provided on one side of the sampling through-hole;

[0007] The angle conversion mechanism includes an incomplete gear ring, a rotating gear 1 and a rotating gear 2. The incomplete gear ring is fixedly mounted on the side wall of the lifting side plate. The incomplete gear ring is coaxially arranged with the rotating axis of the switching rotary frame. The rotating gear 1 and the rotating gear 2 are rotatably arranged at the two ends of the switching rotary frame. The rotating gear 1 and the rotating gear 2 are symmetrically arranged on both sides of the incomplete gear ring. The rotating gear 1 and the rotating gear 2 are respectively engaged with the incomplete gear ring. The end of the vertical sampling mechanism is fixedly connected to the central axis of the rotating gear 1, and the end of the horizontal pre-scraping sampling mechanism is fixedly connected to the central axis of the rotating gear 2.

[0008] Preferably, the speed ratio between the incomplete gear ring and the rotating gear 1 is 2:3, and the rotating gear 1 is the same as the rotating gear 2, so that when the rotating gear 1 (rotating gear 2) rotates 180° around the incomplete gear ring, the rotating gear 1 (rotating gear 2) itself rotates 270°.

[0009] In the initial state, the switching turret is in a horizontal state, the vertical sampling mechanism is in a vertical downward state, and the horizontal pre-scraping soil sampling mechanism is in a horizontal state. In the process of the switching turret rotating 180° in the horizontal state and then becoming horizontal again, the switching turret drives the rotating gear 1 (rotating gear 2) to rotate 180° around the incomplete gear ring. The rotating gear 1 drives the vertical sampling mechanism to be converted from a vertical downward state to a horizontal state, and the rotating gear 2 drives the horizontal pre-scraping soil sampling mechanism to be converted from a horizontal state to a vertical downward state, thereby realizing the mutual conversion of the angles of the horizontal pre-scraping soil sampling mechanism and the vertical sampling mechanism.

[0010] The cam is connected to the upper end of the fixed cylinder to form a circle, and the upper end of the fixed cylinder is provided with a self-locking sliding component that drives the horizontal sampling component to slide back and forth.

[0011] The self-locking sliding assembly drives the scraper plate to rotate out of the scraping gap and insert into the soil. As the fixed cylinder rotates, the scraper plate scrapes the surface soil and sends it into the scraping cavity. After the scraping is completed, the sampling drive drives the horizontal sampling assembly to slide back and forth horizontally, thereby performing horizontal sampling.

[0012] As a further improvement of the present invention, the incomplete gear ring includes an upper arc-shaped gear ring and a lower arc-shaped gear ring connected at the ends, the lower arc-shaped gear ring is arranged below the upper arc-shaped gear ring, the upper arc-shaped gear ring and the lower arc-shaped gear ring have the same radius and are coaxially arranged, the connecting ends of the upper arc-shaped gear ring and the lower arc-shaped gear ring are arranged horizontally, and a gap is provided between the upper arc-shaped gear ring and the lower arc-shaped gear ring, the curvature of the upper arc-shaped gear ring is slightly greater than 180°, and the curvature of the lower arc-shaped gear ring is 60°, and the switching rack rotates in the direction of the upper arc-shaped gear ring-gap-lower arc-shaped gear ring.

[0013] Preferably, the bottom wall of the soil scraping cavity is hollow, and when the fixing cylinder is pulled out upward, the soil scraped off the soil scraping cavity falls through the bottom wall of the soil scraping cavity.

[0014] More specifically, the sampling drive includes a sampling rocker, a sampling shaft, an incomplete gear 1, an incomplete gear 2, a driving gear, a screwing gear 1, a screwing gear 2 and a screwing shaft. The sampling shaft is rotatably arranged in the driving cavity. The screwing gear 1 and the screwing gear 2 are rotatably arranged on the upper wall of the driving cavity. The screwing gear 1 and the screwing gear 2 are meshed. The incomplete gears are coaxially fixedly arranged at the bottom end of the screwing gear 1, and the incomplete gear 2 is coaxially fixedly arranged at the bottom end of the screwing gear 2. The driving gear is coaxially fixedly arranged on the sampling shaft. The driving gear is arranged on the incomplete gear. Between the complete gear 1 and the incomplete gear 2, the incomplete gear 1 and the incomplete gear 2 are alternately meshed with the driving gear. The screwing shaft is coaxially fixed with the screwing gear. One end of the sampling rocker is coaxially fixed on the screwing shaft. The other end of the sampling rocker is provided with a toggle slide groove. The upper wall of the horizontal sampling assembly is provided with a toggle shaft. A toggle through hole is provided between the sampling slot hole and the driving cavity. The other end of the sampling rocker penetrates the toggle through hole and extends into the sampling slot hole. The toggle shaft is slidably clamped in the toggle through hole, and the screwing shaft rotates upward and penetrates the upper wall of the fixed cylinder.

[0015] By rotating the screw shaft, the screw gear 1 is driven to rotate, and the screw gear 1 drives the screw gear 2 to rotate in the opposite direction, the screw gear 1 drives the incomplete gear 1 to rotate synchronously, and the screw gear 2 drives the incomplete gear 2 to rotate synchronously, the incomplete gear 1 and the incomplete gear 2 rotate in the opposite direction, and the incomplete gear 1 and the incomplete gear 2 are alternately engaged with the driving gear, so that the sampling shaft rotates alternately forward and reverse, and the sampling shaft drives the sampling pendulum to swing back and forth, and the sampling pendulum drives the horizontal sampling assembly to slide back and forth along the sampling slot hole through the toggle through hole and the toggle shaft to complete horizontal sampling.

[0016] Preferably, the sampling swing rods are arranged in a plurality of groups in an array along the length direction of the sampling shaft, and the sampling swing rods correspond to the horizontal sampling components one by one.

[0017] Preferably, the sampling rocker includes an outer rod, an inner slide rod and a spring. The end of the outer rod is fixedly connected to the screw shaft. A telescopic slide groove is provided at the end of the outer rod away from the screw shaft. The inner slide rod is slidably arranged in the telescopic slide groove. The spring is arranged between the inner slide rod and the outer rod. The toggle slide groove is arranged on the inner slide rod.

[0018] Furthermore, the horizontal sampling assembly includes a sliding mounting seat and a horizontal sampling cylinder, and horizontal slide grooves are symmetrically provided on both side walls of the sampling slot hole, and the horizontal slide grooves are equidistantly distributed along the axis of the fixed cylinder, and the horizontal slide grooves correspond one to one with the horizontal sampling assembly, and horizontal sliders are symmetrically provided on both sides of the sliding mounting seat, and the horizontal sliders are slidably clamped in the horizontal slide grooves, and a mounting hole is penetrated on the sliding mounting seat, and the horizontal sampling cylinder is set with an opening on one side, and a threaded sleeve is provided on the side of the horizontal sampling cylinder away from the opening, and a thread is provided in the mounting hole, and the threaded sleeve is threadedly connected in the mounting hole, and the horizontal sampling cylinder is quickly fixed in the mounting hole through the threaded sleeve, and the toggle shaft is set on the upper wall of the sliding mounting seat.

[0019] Preferably, a bulldozer plate is provided in the horizontal sampling tube, a push hole is provided on the side of the horizontal sampling tube away from the opening, and a push rod is provided on one side of the bulldozer plate to slide through the push hole. The push rod and the bulldozer plate facilitate pushing out the soil sample in the horizontal sampling tube after sampling.

[0020] Furthermore, the self-locking pushing assembly includes a self-rotating seat, a rotating screw, a pushing slide, a pushing slide shaft and a pushing plate. The pushing plate is arranged on a side of the scraping plate close to the scraping cavity. The upper wall of the fixed cylinder is provided with an arc-shaped through hole connected to the scraping cavity. The axis of the arc-shaped through hole is coaxially arranged with the rotation axis of the scraping plate. The pushing slide shaft is slidably clamped in the arc-shaped through hole. The bottom end of the pushing slide shaft is connected to the pushing plate. The pushing slide seat is rotatably arranged at the upper end of the pushing slide shaft. The self-rotating seat is rotatably arranged at the upper end of the fixed cylinder. The rotating screw is rotatably connected to the self-rotating seat. The rotating screw passes through the pushing slide, and the rotating screw is threadedly connected to the pushing slide.

[0021] By rotating the screw, the push slide is driven to slide along the arc-shaped through hole. The rotatable seat automatically rotates and adjusts the angle as the push slide moves. The push slide drives the push plate to move through the push slide shaft, and the push plate drives the scraper plate to rotate.

[0022] Furthermore, the vertical sampling mechanism includes a sampling cylinder, an inner cylinder and an outer cylinder arranged in sequence from the inside to the outside, and the sampling cylinder, inner cylinder and outer cylinder are arranged with openings at the bottom ends. A fixed ring seat is provided on the outer side of the upper end of the sampling cylinder, and the fixed ring seat is rotatably connected to one end of the switching turntable. The outer cylinder is provided with a soil discharge drive for driving the inner cylinder to rotate, and a spiral blade is wound around the outer wall of the inner cylinder. The spiral blade is arranged between the inner cylinder and the outer cylinder. The upper end of the outer cylinder is connected to a soil discharge pipe arranged obliquely downward, and the soil discharge pipe is arranged directly above the backfill box.

[0023] Among them, a swivel is coaxially fixedly provided on the outer side of the inner cylinder, and a mounting plate is fixedly connected between the swivel and the inner cylinder. A mounting hole is penetrated by the mounting plate, and a soil crushing tooth plate is fixedly installed in the mounting hole by bolts. The soil on the ground is crushed by the soil crushing tooth plate and sent into the space between the inner cylinder and the outer cylinder. After being transported upward by the rotating spiral blades, it is sent into the backfill box through the inclined soil discharge pipe to facilitate subsequent backfilling.

[0024] Preferably, a conical end is coaxially fixedly provided at the opening of the bottom end of the sampling tube, the shaft of the conical end is provided with a through hole connected to the sampling tube, the conical end is coaxially fixedly provided with an external threaded portion on the side close to the sampling tube, and the inner wall of the inner tube is provided with an internal threaded portion matching the external threaded portion. The sampling tube can be quickly installed inside the inner tube through the internal threaded portion and the conical end is easy to insert into the soil.

[0025] Preferably, the positioning assembly includes matching special-shaped insertion rods, special-shaped positioning holes and special-shaped insertion holes. The special-shaped positioning holes are symmetrically arranged at both ends of the switching rotary frame, and the special-shaped insertion holes are respectively arranged on one side wall and two side walls of the rotating gear. The special-shaped insertion rods are slidably inserted into the special-shaped positioning holes and the special-shaped insertion holes, and the special-shaped positioning holes and the special-shaped insertion holes have the same shape and size.

[0026] Preferably, two groups of lifting components are symmetrically provided on the movable seat, and two groups of lifting side plates are symmetrically provided. The two groups of lifting side plates are respectively connected to the two groups of lifting components. The two groups of lifting components and the two groups of lifting side plates support and fix the switching turntable from both sides, making the switching turntable more stable.

[0027] Furthermore, the lifting assembly includes a lifting rod, a lifting screw and a lifting seat. The side wall of the movable seat is provided with a fixed bracket arranged in a U-shape. The lifting rod and the lifting screw are rotatably arranged in the fixed bracket. The lifting seat is slidingly connected to the lifting rod, and the lifting seat is threadedly connected to the lifting screw. The side wall of the fixed bracket is provided with a lifting motor for driving the lifting screw to rotate. The output end of the lifting motor is transmission-connected to the lifting screw. The lifting motor drives the lifting screw to rotate, and the lifting screw drives the lifting seat to move up and down along the lifting screw and the lifting rod, and the lifting rod guides and limits the lifting seat.

[0028] Preferably, the bottom wall of the backfill box is low in the middle and high on four sides, a backfill hole is opened at the center of the bottom wall of the backfill box, and a baffle is slidably provided on the bottom wall of the backfill box.

[0029] The beneficial effects achieved by the present invention using the above structure are as follows:

[0030] 1. Both a vertical sampling mechanism and a horizontal pre-scraping soil sampling mechanism are set up. When sampling, vertical sampling is first performed through the vertical sampling mechanism, and then horizontal sampling is performed through the horizontal pre-scraping soil sampling mechanism. Two sampling methods can be implemented to fully grasp the spatial and depth characteristics of the soil.

[0031] 2. An angle conversion mechanism is set up. Through the ingenious gear transmission structure, when the switching turret is rotated, the switching turret drives the horizontal pre-scraping soil sampling mechanism and the vertical sampling mechanism to rotate and switch positions. At the same time, the angle conversion mechanism enables the angles of the horizontal pre-scraping soil sampling mechanism and the vertical sampling mechanism to be converted to each other to ensure that when the switching turret is in a horizontal state, the horizontal pre-scraping soil sampling mechanism and the vertical sampling mechanism are in a vertical state and a horizontal state respectively, which is convenient for switching between different sampling methods.

[0032] 3. The vertical sampling mechanism is equipped with rotating spiral blades and soil-crushing tooth plates. While performing vertical sampling, a pit is dug to facilitate subsequent horizontal sampling. The soil-crushing tooth plates crush the soil on the ground and send it between the inner and outer cylinders. After being transported upward by the rotating spiral blades, the soil is discharged through the inclined soil discharge pipe.

[0033] 4. A backfill box is set under the soil crushing pipe to receive the crushed soil and facilitate subsequent backfilling.

[0034] 5. A rotatable scraper plate is provided. When the horizontal pre-scraping sampling mechanism is inserted into the sampling pit, the scraper plate shrinks in the scraping cavity to avoid contact with the pit section. When the horizontal pre-scraping sampling mechanism moves down into place, the scraper plate rotates out horizontally and is inserted horizontally into the soil. By rotating the fixed cylinder, the surface soil of the sampling pit section can be scraped off horizontally, avoiding circling and mixing caused by vertical scraping or insertion into the soil layer.

[0035] 6. Before horizontal sampling, scrape the surface soil horizontally in advance to obtain samples of the original undisturbed soil layer, avoid mixing with non-in-situ soil, prevent upper pollutants from sliding or mixing with lower samples, and ensure the representativeness and accuracy of the samples.

[0036] 7. The obliquely arranged scraper plate and the scraper cavity can collect the scraped soil layer. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] Figure 1 A schematic structural diagram of a soil sampler for land management provided by the present invention;

[0038] Figure 2 A schematic structural diagram of a soil sampler for land management provided by the present invention from another perspective;

[0039] Figure 3 A schematic diagram of the combined structure of the movable base, lifting assembly and lifting side panels provided by the present invention;

[0040] Figure 4 A schematic diagram of the combined structure of the lifting side plate, the switching rotating frame, the vertical sampling mechanism, the horizontal pre-scraping soil sampling mechanism, the angle conversion mechanism and the positioning assembly provided by the present invention;

[0041] Figure 5 A schematic diagram of the combined structure of the switching rotating frame, vertical sampling mechanism, horizontal pre-scraping soil sampling mechanism and angle conversion mechanism provided by the present invention;

[0042] Figure 6 A cross-sectional view of the vertical sampling mechanism provided by the present invention;

[0043] Figure 7 A schematic structural diagram of the sampling tube provided by the present invention;

[0044] Figure 8 A schematic structural diagram of the inner cylinder provided by the present invention;

[0045] Figure 9 A schematic diagram of the structure of the horizontal pre-scraping soil sampling mechanism and the rotating gear 2 provided by the present invention;

[0046] Figure 10 A schematic diagram of the structure of the horizontal pre-scraping soil sampling mechanism provided by the present invention without the horizontal sampling component;

[0047] Figure 11 A cross-sectional view of the horizontal pre-scraping soil sampling mechanism provided by the present invention;

[0048] Figure 12 A schematic diagram of the combined structure of the sampling drive and horizontal sampling components provided by the present invention;

[0049] Figure 13 A schematic diagram of the structure of the sampling drive provided by the present invention;

[0050] Figure 14 This is a schematic diagram of the combined structure of the switching rotating frame and the angle conversion mechanism provided by the present invention.

[0051] Among them, 1. Moving seat, 2. Lifting assembly, 3. Lifting side plate, 4. Switching rotating frame, 5. Vertical sampling mechanism, 6. Horizontal pre-scraping soil sampling mechanism, 7. Angle conversion mechanism, 8. Positioning assembly, 9. Sampling through hole, 10. Backfill box, 11. Incomplete gear ring, 12. Rotating gear 1, 13. Rotating gear 2, 14. Upper arc gear ring, 15. Lower arc gear ring, 16. Notch, 17. Special-shaped plug rod, 18. Special-shaped positioning hole, 1 9. Special-shaped jack, 20. Fixed cylinder, 21. Scraper plate, 22. Horizontal sampling assembly, 23. Sampling drive, 24. Fixed ring seat 2, 25. Sampling slot, 26. Scraping cavity, 27. Drive cavity, 28. Scraping notch, 29. Self-locking push assembly, 30. Sampling swing rod, 31. Sampling shaft, 32. Incomplete gear 1, 33. Incomplete gear 2, 34. Drive gear, 35. Twist gear 1, 36. Twist gear 2, 3 7. Rotating shaft, 38. Slide groove, 39. Slide shaft, 40. Slide through hole, 41. Outer rod, 42. Inner slide, 43. Power supply, 44. Sliding mounting seat, 45. Horizontal sampling tube, 46. Horizontal slide, 47. Horizontal slider, 48. Mounting hole, 49. Threaded sleeve, 50. Bulldozer, 51. Push rod, 52. Rotating seat, 53. Rotating screw, 54. Push slide, 55. Push slide shaft, 56. Push plate, 57 , arc-shaped through hole, 58, sampling tube, 59, inner tube, 60, outer tube, 61, fixed ring seat 1, 62, soil discharge drive, 63, spiral blade, 64, soil discharge pipe, 65, swivel, 66, mounting plate, 67, soil crushing tooth plate, 68, tapered end, 69, external threaded part, 70, lifting rod, 71, lifting screw, 72, lifting seat, 73, fixed bracket, 74, handle, 75, lifting motor, 76, backfill hole, 77, baffle.

[0052] The accompanying drawings are used to provide further understanding of the present invention and constitute a part of the specification. They are used to explain the present invention together with the embodiments of the present invention and do not constitute a limitation of the present invention. DETAILED DESCRIPTION

[0053] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments; based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0054] In the description of the present invention, it should be understood that terms such as "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside" and "outside" indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they should not be understood as limiting the present invention.

[0055] like Figures 1-14 As shown, the present invention provides a soil sampler for land management, including a mobile seat 1, a lifting assembly 2 is provided on the mobile seat 1, a lifting side plate 3 is connected to the lifting assembly 2, the side wall of the lifting side plate 3 is rotatably connected to a switching turret 4, and the two ends of the switching turret 4 are rotatably connected to a vertical sampling mechanism 5 and a horizontal pre-scraping soil sampling mechanism 6, the length of the rotation axis of the vertical sampling mechanism 5 to the rotation axis of the switching turret 4 is equal to the length of the rotation axis of the horizontal pre-scraping soil sampling mechanism 6 to the rotation axis of the switching turret 4, and a driving mechanism for the vertical sampling mechanism 5 and the horizontal pre-scraping soil sampling mechanism 6 is provided between the switching turret 4 and the lifting side plate 3. The sampling mechanism 6 rotates the angle conversion mechanism 7 for adjusting the angle. The lifting side plate 3 is provided with a positioning component 8 for keeping the switching turret 4 horizontal. When the switching turret 4 is in a horizontal state, the horizontal pre-scraping soil sampling mechanism 6 and the vertical sampling mechanism 5 remain perpendicular to each other. When the switching turret 4 rotates 180° and becomes horizontal again, the switching turret 4 drives the horizontal pre-scraping soil sampling mechanism 6 and the vertical sampling mechanism 5 to rotate and convert their positions. At the same time, the angle conversion mechanism 7 enables the angles of the horizontal pre-scraping soil sampling mechanism 6 and the vertical sampling mechanism 5 to be converted to each other. A sampling through hole 9 is penetrated on the movable seat 1, and a backfill box 10 is provided on one side of the sampling through hole 9;

[0056] The angle conversion mechanism 7 includes an incomplete gear ring 11, a rotating gear 12 and a rotating gear 2 13. The incomplete gear ring 11 is fixedly mounted on the side wall of the lifting side plate 3. The incomplete gear ring 11 is coaxially arranged with the rotation axis of the switching rotary frame 4. The rotating gear 12 and the rotating gear 2 13 are rotatably arranged at both ends of the switching rotary frame 4. The rotating gear 12 and the rotating gear 2 13 are symmetrically arranged on both sides of the incomplete gear ring 11. The rotating gear 12 and the rotating gear 2 13 are respectively engaged with the incomplete gear ring 11. The end of the vertical sampling mechanism 5 is fixedly connected to the central axis of the rotating gear 12, and the end of the horizontal pre-scraping soil sampling mechanism 6 is fixedly connected to the central axis of the rotating gear 2 13.

[0057] In this embodiment, two groups of lifting components 2 are symmetrically provided on the movable seat 1, and two groups of lifting side plates 3 are symmetrically provided. The two groups of lifting side plates 3 are respectively connected to the two groups of lifting components 2. The switching turntable 4 is rotatably provided between the two groups of lifting components 2. The two groups of lifting components 2 and the two groups of lifting side plates 3 support and fix the switching turntable 4 from both sides, making the switching turntable 4 more stable.

[0058] The lifting assembly 2 includes a lifting rod 70, a lifting screw 71 and a lifting seat 72. The side wall of the movable seat 1 is provided with a fixed bracket 73 in a U-shaped shape. The lifting rod 70 and the lifting screw 71 are rotatably arranged in the fixed bracket 73. The lifting seat 72 is slidingly connected to the lifting rod 70, and the lifting seat 72 is threadedly connected to the lifting screw 71. The side wall of the fixed bracket 73 is provided with a lifting motor 75 for driving the lifting screw 71 to rotate. The output end of the lifting motor 75 is transmission-connected to the lifting screw 71. The lifting motor 75 drives the lifting screw 71 to rotate, and the lifting screw 71 drives the lifting seat 72 to move up and down along the lifting screw 71 and the lifting rod 70. The lifting rod 70 guides and limits the lifting seat 72.

[0059] The bottom wall of the backfill box 10 is low in the middle and high on four sides. A backfill hole 76 is opened at the center of the bottom wall of the backfill box 10. A baffle 77 is slidingly provided on the bottom wall of the backfill box 10; a handle 74 is provided on the side wall of the lifting component 2, and a power supply 43 is provided on the moving base 1.

[0060] The positioning assembly 8 includes a corresponding special-shaped insertion rod 17, a special-shaped positioning hole 18 and a special-shaped insertion hole 19. The special-shaped positioning hole 18 is symmetrically arranged at both ends of the switching rotary frame 4, and the special-shaped insertion hole 19 is respectively arranged on the side wall of the rotating gear 12 and the side wall of the rotating gear 2 13. The special-shaped insertion rod 17 is slidably inserted into the special-shaped positioning hole 18 and the special-shaped insertion hole 19. The special-shaped positioning hole 18 and the special-shaped insertion hole 19 have the same shape and size. The special-shaped insertion rod 17, the special-shaped positioning hole 18 and the special-shaped insertion hole 19 are arranged in a cross shape.

[0061] The speed ratio between the incomplete gear ring 11 and the rotating gear 1 12 is 2:3, and the rotating gear 1 12 is the same as the rotating gear 2 13. Therefore, when the rotating gear 1 12 (rotating gear 2 13) rotates 180° around the incomplete gear ring 11, the rotating gear 1 12 (rotating gear 2 13) itself rotates 270°.

[0062] In the initial state, the switching turret 4 is in a horizontal state, the vertical sampling mechanism 5 is in a vertical downward state, and the horizontal pre-scraping soil sampling mechanism 6 is in a horizontal state. In the process of the switching turret 4 rotating 180° in the horizontal state and then becoming horizontal again, the switching turret 4 drives the rotating gear 12 (rotating gear 2 13) to rotate 180° around the incomplete gear ring 11, and the rotating gear 12 drives the vertical sampling mechanism 5 to be converted from the vertical downward state to the horizontal state, and the rotating gear 2 13 drives the horizontal pre-scraping soil sampling mechanism 6 to be converted from the horizontal state to the vertical downward state, thereby realizing the mutual conversion of the angles of the horizontal pre-scraping soil sampling mechanism 6 and the vertical sampling mechanism 5.

[0063] See Figure 3 and Figure 4 The incomplete gear ring 11 includes an upper arc gear ring 14 and a lower arc gear ring 15 connected at the ends. The lower arc gear ring 15 is arranged below the upper arc gear ring 14. The upper arc gear ring 14 and the lower arc gear ring 15 have the same radius and are coaxially arranged. The connecting ends of the upper arc gear ring 14 and the lower arc gear ring 15 are arranged horizontally. A gap 16 is provided between the upper arc gear ring 14 and the lower arc gear ring 15. The curvature of the upper arc gear ring 14 is slightly greater than 180°, and the curvature of the lower arc gear ring 15 is 60°. The switching rack 4 rotates in the direction of the upper arc gear ring 14-gap 16-lower arc gear ring 15.

[0064] like Figure 1 、 Figure 4-Figure 8 As shown, the vertical sampling mechanism 5 includes a sampling cylinder 58, an inner cylinder 59 and an outer cylinder 60 arranged in sequence from the inside to the outside, and the sampling cylinder 58, the inner cylinder 59 and the outer cylinder 60 are arranged with bottom openings. A fixed ring seat 61 is provided on the outer side of the upper end of the sampling cylinder 58, and the fixed ring seat 61 is rotatably connected to one end of the switching turntable 4. The outer cylinder 60 is provided with a soil discharge drive 62 for driving the inner cylinder 59 to rotate. In this embodiment, the soil discharge drive 62 adopts a motor, and a spiral blade 63 is wound around the outer wall of the inner cylinder 59. The spiral blade 63 is arranged between the inner cylinder 59 and the outer cylinder 60. The upper end of the outer cylinder 60 is connected to a soil discharge pipe 64 arranged obliquely downward, and the soil discharge pipe 64 is arranged directly above the backfill box 10.

[0065] A swivel 65 is coaxially fixedly provided on the outer side of the inner cylinder 59, and a mounting plate 66 is fixedly connected between the swivel 65 and the inner cylinder 59. A mounting hole 48 is penetrated by the mounting plate 66, and a soil crushing tooth plate 67 is fixedly installed in the mounting hole 48 by bolts. The soil crushing tooth plate 67 is used to crush the soil on the ground and send it between the inner cylinder 59 and the outer cylinder 60. After being transported upward by the rotating spiral blades 63, it is sent into the backfill box 10 through the inclined soil discharge pipe 64 to facilitate subsequent backfilling.

[0066] A conical end 68 is coaxially fixed to the opening at the bottom end of the sampling tube 58, and the shaft of the conical end 68 is provided with a through hole connected to the sampling tube 58. An external threaded portion 69 is coaxially fixed to the side of the conical end 68 close to the sampling tube 58. The inner wall of the inner tube 59 is provided with an internal threaded portion that matches the external threaded portion 69. The internal threaded portion and the external threaded portion 69 facilitate the rapid installation of the sampling tube 58 inside the inner tube 59. An opening is provided on the side wall of the sampling tube 58 along the length direction, and a cover plate is detachably installed in the opening. The cover plate and the opening facilitate the removal of samples. The connection structure between the cover plate and the opening is prior art and will not be described here or shown in the figure.

[0067] See Figure 1-Figure 5 as well as Figures 9-13 The horizontal pre-scraping sampling mechanism 6 includes a fixed cylinder 20, a scraping plate 21, a horizontal sampling assembly 22 and a sampling drive 23 that drives the horizontal sampling assembly 22 to slide back and forth. The outer side of the upper end of the fixed cylinder 20 is rotatably connected to a fixed ring seat 24, and the fixed ring seat 24 is rotatably connected to the switching rotating frame 4. The fixed cylinder 20 includes a sampling slot 25 extending upward from the bottom end and a scraping cavity 26 and a driving cavity 27 provided on both sides of the sampling slot 25. The scraping cavity 26 and the driving cavity 27 are sealed. The sampling slot 25 The fixed cylinder 20 is passed through from front to back, and the horizontal sampling components 22 are arranged in an array in the sampling slot 25. The horizontal sampling components 22 are slidably clamped in the sampling slot 25. The sampling drive 23 is provided in the drive cavity 27. The sampling drive 23 is connected to the horizontal sampling component 22. The circumferential side wall of the scraping cavity 26 is provided with a scraping notch 28. One end of the scraping plate 21 is rotatably provided in the scraping notch 28. The upper end of the fixed cylinder 20 is provided with a self-locking sliding component 29 that drives the scraping plate 21 to rotate, and the upper end of the fixed cylinder 20 is provided with a turning handle.

[0068] The self-locking sliding assembly 29 drives the scraper plate 21 to rotate out of the scraping notch 28 and insert it horizontally into the soil. As the fixed cylinder 20 rotates, the scraper plate 21 scrapes the surface soil horizontally and sends it into the scraping cavity 26. After the scraping is completed, the sampling drive 23 drives the horizontal sampling assembly 22 to slide back and forth horizontally, thereby performing horizontal sampling.

[0069] The bottom wall of the soil scraping cavity 26 is hollow. When the fixing cylinder 20 is pulled out upward, the soil scraped from the soil scraping cavity 26 falls through the bottom wall of the soil scraping cavity 26 .

[0070] The sampling drive 23 includes a sampling rocker 30, a sampling shaft 31, an incomplete gear 1 32, an incomplete gear 2 33, a driving gear 34, a screwing gear 1 35, a screwing gear 2 36 and a screwing shaft 37. The sampling shaft 31 is rotatably arranged in the driving chamber 27. The screwing gear 1 35 and the screwing gear 2 36 are rotatably arranged on the upper wall of the driving chamber 27. The screwing gear 1 35 and the screwing gear 2 36 are engaged. The incomplete gear 1 32 is coaxially fixed to the bottom end of the screwing gear 1 35. The incomplete gear 2 33 is coaxially fixed to the bottom end of the screwing gear 2 36. The driving gear 34 is coaxially fixed to the sampling shaft 31. The driving gear 34 is arranged on the incomplete gear Between wheel one 32 and incomplete gear two 33, incomplete gear one 32 and incomplete gear two 33 are alternately meshed with the driving gear 34. The screwing shaft 37 is coaxially fixed with the screwing gear one 35. The screwing shaft 37 rotates upward and penetrates the upper wall of the fixed cylinder 20. One end of the sampling rocker 30 is coaxially fixed on the screwing shaft 37. The other end of the sampling rocker 30 is provided with a toggle slot 38. The upper wall of the horizontal sampling assembly 22 is provided with a toggle shaft 39. A toggle through hole 40 is provided between the sampling slot hole 25 and the driving chamber 27. The other end of the sampling rocker 30 penetrates the toggle through hole 40 and extends into the sampling slot hole 25. The toggle shaft 39 is slidably clamped in the toggle through hole 40.

[0071] By rotating the screw shaft 37, the screw gear 1 35 is driven to rotate, and the screw gear 1 35 drives the screw gear 2 36 to rotate in the opposite direction. The screw gear 1 35 drives the incomplete gear 1 32 to rotate synchronously, and the screw gear 2 36 drives the incomplete gear 2 33 to rotate synchronously. The incomplete gear 1 32 and the incomplete gear 2 33 rotate in the opposite directions. The incomplete gear 1 32 and the incomplete gear 2 33 alternately engage with the driving gear 34, so that the sampling shaft 31 rotates alternately forward and reverse. The sampling shaft 31 drives the sampling swing rod 30 to swing back and forth. The sampling swing rod 30 drives the horizontal sampling assembly 22 to slide back and forth along the sampling slot 25 through the toggle through hole 40 and the toggle shaft 39 to complete horizontal sampling.

[0072] The sampling swing rods 30 are arranged in a plurality of arrays along the length direction of the sampling shaft 31 , and the sampling swing rods 30 correspond to the horizontal sampling components 22 one by one.

[0073] The sampling rocker 30 includes an outer rod 41, an inner slide rod 42 and a spring. The end of the outer rod 41 is fixedly connected to the screw shaft 37. The end of the outer rod 41 away from the screw shaft 37 is provided with a telescopic slide groove. The inner slide rod 42 is slidably arranged in the telescopic slide groove. The spring is arranged between the inner slide rod 42 and the outer rod 41. The toggle slide groove 38 is arranged on the inner slide rod 42.

[0074] The horizontal sampling assembly 22 includes a sliding mounting seat 44 and a horizontal sampling tube 45. Horizontal slide grooves 46 are symmetrically provided on both side walls of the sampling slot hole 25. The horizontal slide grooves 46 are equidistantly distributed along the axis of the fixed tube 20. The horizontal slide grooves 46 correspond one to one with the horizontal sampling assembly 22. Horizontal sliders 47 are symmetrically provided on both sides of the sliding mounting seat 44. The horizontal sliders 47 are slidably clamped in the horizontal slide grooves 46. A mounting hole 48 is provided on the sliding mounting seat 44. The horizontal sampling tube 45 is opened on one side. A threaded sleeve 49 is provided on the side of the horizontal sampling tube 45 away from the opening. A thread is provided in the mounting hole 48. The threaded sleeve 49 is threadedly connected in the mounting hole 48. The threaded sleeve 49 facilitates the quick fixing of the horizontal sampling tube 45 in the mounting hole 48. The dial shaft 39 is provided on the upper wall of the sliding mounting seat 44.

[0075] A bulldozer plate 50 is provided in the horizontal sampling tube 45. A push hole is provided on the side of the horizontal sampling tube 45 away from the opening. A push rod 51 is provided on one side of the bulldozer plate 50 and slides through the push hole. The push rod 51 and the bulldozer plate 50 facilitate pushing out the soil sample in the horizontal sampling tube 45 after sampling.

[0076] The self-locking sliding assembly 29 includes a self-rotating seat 52, a screw rod 53, a pushing slide 54, a pushing slide shaft 55 and a pushing plate 56. The pushing plate 56 is arranged on the side of the scraper plate 21 close to the scraper cavity 26. The upper wall of the fixed cylinder 20 is provided with an arc-shaped through hole 57 connected to the scraper cavity 26. The axis of the arc-shaped through hole 57 is coaxially arranged with the rotation axis of the scraper plate 21. The pushing slide shaft 55 is slidably clamped in the arc-shaped through hole 57. The bottom end of the pushing slide shaft 55 is connected to the pushing plate 56. The pushing slide 54 is rotatably arranged on the upper end of the pushing slide shaft 55. The self-rotating seat 52 is rotatably arranged on the upper end of the fixed cylinder 20. The screw rod 53 is rotatably connected to the self-rotating seat 52. The screw rod 53 passes through the pushing slide 54 and is threadedly connected to the pushing slide 54.

[0077] By rotating the screw 53, the push slide 54 is driven to slide along the arc-shaped through hole 57, and the rotating seat 52 automatically rotates to adjust the angle as the push slide 54 moves. The push slide 54 drives the push plate 56 to move through the push slide shaft 55, and the push plate 56 drives the scraper plate 21 to rotate.

[0078] When in use, the mobile seat 1 is moved to the sampling location. In the initial state, the switching turret 4 is in a horizontal state, the vertical sampling mechanism 5 is vertically downward, and the horizontal pre-scraping soil sampling mechanism 6 is in a horizontal state. The special-shaped insertion rods 17 at both ends of the switching turret 4 pass through the special-shaped positioning holes 18 and are inserted into the special-shaped insertion holes 19 on the side walls of the rotating gear 12 and the rotating gear 2 13. The special-shaped insertion rods 17 and the special-shaped positioning holes 18 limit the switching turret 4 to keep it in a horizontal state. The sampling personnel start the lifting assembly 2 to drive the vertical sampling mechanism 5 to move downward, and at the same time start the soil discharge drive 62. The lifting motor 75 drives the lifting screw 71 to rotate, and the lifting screw 71 drives the lifting seat 72 to move downward along the lifting screw 71 and the lifting rod 70. The lifting rod 70 moves the lifting seat 72 The lifting seat 72 drives the lifting side plate 3, the switching rotating frame 4 and the vertical sampling mechanism 5 to move down and insert into the soil. The soil discharge drive 62 drives the inner cylinder 59 to rotate, and the inner cylinder 59 drives the spiral blade 63 and the soil crushing tooth plate 67 to rotate. When the vertical sampling mechanism 5 moves down and approaches the soil, the sampling cylinder 58 first contacts the soil and inserts into the soil. Then the rotating soil crushing tooth plate 67 contacts the soil outside the sampling cylinder 58. The soil crushing tooth plate 67 crushes the soil outside the sampling cylinder 58 and sends it between the inner cylinder 59 and the outer cylinder 60. The rotating spiral blade 63 transports the crushed soil upward and then sends it into the backfill box 10 through the obliquely arranged soil discharge pipe 64. When the sampling cylinder 58 drops to a suitable height, the lifting motor 75 is controlled to stop rotating, and then the lifting motor is controlled to stop rotating. When the machine 75 is reversed, the lifting motor 75 drives the lifting screw 71 to rotate, and the lifting screw 71 drives the lifting seat 72 to move upward along the lifting screw 71 and the lifting rod 70, and the lifting seat 72 drives the lifting side plate 3, the switching turret 4 and the vertical sampling mechanism 5 to move up to complete the vertical sampling. After the lifting seat 72 moves up and resets, the lifting motor 75 is controlled to stop rotating. When the soil discharge pipe 64 no longer discharges soil, the soil discharge drive 62 is controlled to stop working. At this time, the sampling cylinder 58 completes sampling, and the soil crushing tooth plate 67 and the spiral blade 63 dig a sampling soil pit of similar size to the outer cylinder 60, and then the special-shaped plug rod 17 is pulled out from the special-shaped plug hole 19 on the side wall of the rotating gear 12 and the rotating gear 2 13, the limit of the switching turret 4 is released, and then according to the upper arc gear ring 14- The switching turret 4 is rotated in the direction of the notch 16-lower arc gear ring 15, and the switching turret 4 is rotated 180 degrees from the horizontal state and then returned to the horizontal state again. During this process, the switching turret 4 drives the rotating gear 12 (rotating gear 2 13) to rotate 180 degrees around the incomplete gear ring 11, and the rotating gear 12 drives the vertical sampling mechanism 5 from the upper arc gear ring 14 through the notch 16 and the lower arc gear ring 15 to the connection end of the lower arc gear ring 15 and the upper arc gear ring 14. When the rotating gear 12 rotates to the notch 16, the rotating gear 12 can rotate freely, and the vertical sampling mechanism 5 remains in a vertical downward state under the action of gravity. When the rotating gear 12 rotates to the lower arc gear ring 15, as the rotating gear 12 continues to rotate around the lower arc gear ring 15,The lower arc gear ring 15 drives the rotating gear 12 to rotate, and the rotating gear 12 drives the vertical sampling mechanism 5 to rotate. Since the speed ratio of the incomplete gear ring 11 and the rotating gear 12 is 2:3, and the curvature of the lower arc gear ring 15 is 60°, when the rotating gear 12 rotates through the lower arc gear ring 15 to the connection end of the lower arc gear ring 15 and the upper arc gear ring 14, the rotating gear 12 rotates 90°, and the rotating gear 12 drives the vertical sampling mechanism 5 to rotate from a vertical downward state to a horizontal state. At the same time, the rotating gear 2 13 drives the horizontal pre-scraping soil sampling mechanism 6 to rotate from one side of the upper arc gear ring 14 to the other side of the upper arc gear ring 14, and rotates 180° around the upper arc gear ring 14. Due to the rotation of the incomplete gear ring 11 and the rotating gear 12 The speed ratio is 2:3, and the rotating gear 12 is the same as the rotating gear 2 13. Therefore, when the rotating gear 2 13 rotates 180° around the incomplete gear ring 11, the rotating gear 2 13 itself rotates 270°, and the rotating gear 2 13 drives the horizontal pre-scraping soil sampling mechanism 6 to rotate from a horizontal state to a vertical upward state, then to a horizontal state, and finally to a vertical downward state, so that the horizontal pre-scraping soil sampling mechanism 6 is converted from a horizontal state to a vertical downward state. By rotating the switching rotating frame 4, the horizontal pre-scraping soil sampling mechanism 6 and the vertical sampling mechanism 5 are driven to rotate and convert their positions, and at the same time, the angles of the horizontal pre-scraping soil sampling mechanism 6 and the vertical sampling mechanism 5 are converted to each other. After the rotation is completed, the special-shaped insertion rods 17 at both ends of the switching rotating frame 4 are inserted into the rotating gear again. The switching rack 4 is limited in the special-shaped socket 19 on the side wall of the first 12 and the rotating gear second 13 to keep it in a horizontal state. At this time, the horizontal pre-scraping soil sampling mechanism 6 rotates to the top of the sampling pit and keeps it in a vertical downward state. The vertical sampling mechanism 5 rotates to the other side of the movable seat 1 and keeps it in a horizontal state. The sampling personnel unscrews the sampling tube 58 from the inner tube 59, and then starts the lifting assembly 2 again to drive the horizontal pre-scraping soil sampling mechanism 6 to move down and insert it into the sampling pit. When the bottom end of the horizontal pre-scraping soil sampling mechanism 6 is in contact with the bottom of the sampling pit, the lifting assembly 2 is controlled to stop moving down. Initially, the scraper plate 21 is retracted in the scraping cavity 26. When the horizontal pre-scraping soil sampling mechanism 6 moves down, the scraper plate 21 will not contact the sampling pit, avoiding the scraper plate 21 contacting the sampling pit. The surface soil of the sampling pit is sampled. When the horizontal pre-scraping sampling mechanism 6 moves down to its proper position, the pushing slide 54 is driven to slide along the arc-shaped through hole 57 by rotating the screw 53. The self-rotating seat 52 automatically rotates and adjusts the angle as the pushing slide 54 moves. The pushing slide 54 drives the pushing plate 56 to move through the pushing slide shaft 55. The pushing plate 56 drives the scraping plate 21 to rotate outward and extend out of the scraping cavity 26 and horizontally insert into the soil. Then, the fixed cylinder 20 is driven to rotate by the turning handle. The fixed cylinder 20 drives the scraping plate 21 to rotate in the sampling pit, scraping the surface soil of the sampling pit and sending it into the scraping cavity 26 through the scraping plate 21. After the scraping is completed, the screwing shaft 37 is rotated to drive the screwing gear 1 35 to rotate, and the screwing gear 1 35 drives the screwing gear 2 36 to rotate in the opposite direction.The screwing gear 1 35 drives the incomplete gear 1 32 to rotate synchronously, and the screwing gear 2 36 drives the incomplete gear 2 33 to rotate synchronously. The incomplete gear 1 32 and the incomplete gear 2 33 rotate in opposite directions. The incomplete gear 1 32 and the incomplete gear 2 33 are alternately engaged with the driving gear 34, so that the sampling shaft 31 rotates alternately forward and reverse. The sampling shaft 31 drives the sampling swing rod 30 to swing back and forth. The sampling swing rod 30 drives the sliding mounting seat 44 to slide back and forth along the horizontal slide groove 46 through the toggle through hole 40 and the toggle shaft 39. The sliding mounting seat 44 drives the horizontal The sampling tube 45 extends out of the sampling slot 25 and is inserted horizontally into the soil. It then moves back and retracts into the sampling slot 25 to complete horizontal sampling. After horizontal sampling is completed, the lifting assembly 2 drives the horizontal pre-scraping soil sampling mechanism 6 to move upward. After the lifting seat 72 moves upward and resets, the lifting motor 75 is controlled to stop rotating. Then, the horizontal sampling tubes 45 are screwed and removed from the mounting holes 48 one by one to complete sampling. After sampling is completed, the moving seat 1 is moved again to align the backfill hole 76 with the sampling pit. Then, the baffle 77 is pulled out and the crushed soil in the backfill box 10 is backfilled into the sampling pit.

[0079] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0080] The present invention and its embodiments are described above. This description is not restrictive. The drawings show only one embodiment of the present invention, and the actual structure is not limited thereto. In short, if a person skilled in the art is inspired by this and, without departing from the purpose of the present invention, designs structures and embodiments similar to this technical solution without inventiveness, they shall fall within the scope of protection of the present invention.

Claims

1. A soil sampler for land management, characterized by: The invention comprises a movable seat (1), wherein the movable seat (1) is provided with a lifting assembly (2), the lifting assembly (2) is connected to a lifting side plate (3), the side wall of the lifting side plate (3) is rotatably connected to a switching turret (4), and the two ends of the switching turret (4) are rotatably connected to a vertical sampling mechanism (5) and a horizontal pre-scraping soil sampling mechanism (6), respectively, the length from the rotation axis of the vertical sampling mechanism (5) to the rotation axis of the switching turret (4) is equal to the length from the rotation axis of the horizontal pre-scraping soil sampling mechanism (6) to the rotation axis of the switching turret (4), an angle conversion mechanism (7) for driving the vertical sampling mechanism (5) and the horizontal pre-scraping soil sampling mechanism (6) to rotate and adjust the angle is provided between the switching turret (4) and the lifting side plate (3), a positioning assembly (8) for keeping the switching turret (4) horizontal is provided on the lifting side plate (3), a sampling through hole (9) is penetrated through the movable seat (1), and a backfill box (10) is provided on one side of the sampling through hole (9); The angle conversion mechanism (7) includes an incomplete gear ring (11), a rotating gear one (12) and a rotating gear two (13), wherein the incomplete gear ring (11) is fixedly mounted on the side wall of the lifting side plate (3), the incomplete gear ring (11) is coaxially arranged with the rotating axis of the switching rotating frame (4), the rotating gear one (12) and the rotating gear two (13) are rotatably arranged at both ends of the switching rotating frame (4), the rotating gear one (12) and the rotating gear two (13) are symmetrically arranged on both sides of the incomplete gear ring (11), the rotating gear one (12) and the rotating gear two (13) are respectively engaged with the incomplete gear ring (11), the end of the vertical sampling mechanism (5) is fixedly connected to the central axis of the rotating gear one (12), and the end of the horizontal pre-scraping soil sampling mechanism (6) is fixedly connected to the central axis of the rotating gear two (13); The speed ratio of the incomplete gear ring (11) and the rotating gear one (12) is 2:3, and the rotating gear one (12) is the same as the rotating gear two (13); when the switching rotating frame is rotated, the switching rotating frame drives the horizontal pre-scraping soil sampling mechanism and the vertical sampling mechanism to rotate and switch positions, and at the same time, the angle conversion mechanism enables the angles of the horizontal pre-scraping soil sampling mechanism and the vertical sampling mechanism to be mutually converted to ensure that when the switching rotating frame is in a horizontal state, the horizontal pre-scraping soil sampling mechanism and the vertical sampling mechanism are in a vertical state and a horizontal state respectively; The horizontal pre-scraping sampling mechanism (6) includes a fixed cylinder (20), a scraping plate (21), a horizontal sampling assembly (22), and a sampling drive (23) for driving the horizontal sampling assembly (22) to slide back and forth. The outer side of the upper end of the fixed cylinder (20) is rotatably connected to a second fixed ring seat (24). The second fixed ring seat (24) is rotatably connected to the switching rotating frame (4). The fixed cylinder (20) includes a sampling slot (25) and a scraping cavity (26) and a driving cavity (27) provided on both sides of the sampling slot (25). The scraping cavity (26) and the driving cavity (27) are sealed. The sampling slot (25) penetrates the fixed cylinder (20) from front to back, the horizontal sampling components (22) are arranged in an array in the sampling slot (25), the horizontal sampling components (22) are slidably carded in the sampling slot (25), the sampling drive (23) is arranged in the drive cavity (27), the sampling drive (23) is connected to the horizontal sampling component (22), the circumferential side wall of the scraping cavity (26) is provided with a scraping notch (28), one end of the scraping plate (21) is rotatably provided in the scraping notch (28), and the upper end of the fixed cylinder (20) is provided with a self-locking push component (29) for driving the scraping plate (21) to rotate.

2. A soil sampler for land management according to claim 1, characterized in that: The incomplete tooth ring (11) comprises an upper arc-shaped tooth ring (14) and a lower arc-shaped tooth ring (15) connected at their ends, the lower arc-shaped tooth ring (15) being arranged below the upper arc-shaped tooth ring (14), the upper arc-shaped tooth ring (14) and the lower arc-shaped tooth ring (15) having the same radius and being coaxially arranged, the connecting ends of the upper arc-shaped tooth ring (14) and the lower arc-shaped tooth ring (15) being arranged horizontally, a notch (16) being arranged between the upper arc-shaped tooth ring (14) and the lower arc-shaped tooth ring (15), the arc of the upper arc-shaped tooth ring (14) being greater than 180°, and the arc of the lower arc-shaped tooth ring (15) being 60°.

3. A soil sampler for land management according to claim 2, characterized in that: The horizontal sampling assembly (22) includes a sliding mounting seat (44) and a horizontal sampling barrel (45), horizontal slide grooves (46) are symmetrically provided on both side walls of the sampling slot hole (25), and horizontal sliders (47) are symmetrically provided on both sides of the sliding mounting seat (44), and the horizontal sliders (47) are slidably clamped in the horizontal slide grooves (46). A mounting hole (48) is provided through the sliding mounting seat (44), and the horizontal sampling barrel (45) is provided with an opening on one side. A threaded sleeve (49) is provided on the side of the horizontal sampling barrel (45) away from the opening, and a thread is provided in the mounting hole (48). The threaded sleeve (49) is threadedly connected in the mounting hole (48).

4. A soil sampler for land management according to claim 3, characterized in that: The self-locking push assembly (29) includes a self-rotating seat (52), a screw (53), a push slide (54), a push slide shaft (55) and a push plate (56). The push plate (56) is arranged on a side of the scraper plate (21) close to the scraper cavity (26). The upper wall of the fixed cylinder (20) is provided with an arc-shaped through hole (57) communicating with the scraper cavity (26). The axis of the arc-shaped through hole (57) is coaxially arranged with the rotation axis of the scraper plate (21). The push slide shaft The (55) sliding card is set in the arc-shaped through hole (57), the bottom end of the push slide shaft (55) is connected to the push plate (56), the push slide seat (54) is rotatably set at the upper end of the push slide shaft (55), the self-rotating seat (52) is rotatably set at the upper end of the fixed cylinder (20), the screw rod (53) is rotatably connected to the self-rotating seat (52), the screw rod (53) passes through the push slide seat (54), and the screw rod (53) is threadedly connected to the push slide seat (54).

5. The soil sampler for land management according to claim 4, characterized in that: The vertical sampling mechanism (5) includes a sampling tube (58), an inner tube (59) and an outer tube (60) which are arranged in sequence from the inside to the outside. The sampling tube (58), the inner tube (59) and the outer tube (60) are arranged with bottom openings. A fixed ring seat (61) is provided on the outer side of the upper end of the sampling tube (58). The fixed ring seat (61) is rotatably connected to one end of the switching rotating frame (4). A soil discharge drive (62) for driving the inner tube (59) to rotate is provided on the outer tube (60). A spiral blade (63) is wound around the outer wall of the inner tube (59). The spiral blade (63) is arranged between the inner tube (59) and the outer tube (60). The upper end of the outer tube (60) is connected to a soil discharge pipe (64) arranged obliquely downward. The soil discharge pipe (64) is arranged just above the backfill box (10).

6. The soil sampler for land management according to claim 5, characterized in that: A rotating ring (65) is coaxially fixedly provided on the outer side of the inner cylinder (59), a mounting plate (66) is fixedly connected between the rotating ring (65) and the inner cylinder (59), a mounting hole (48) is penetrated through the mounting plate (66), and a soil crushing tooth plate (67) is fixedly installed in the mounting hole (48).

7. The soil sampler for land management according to claim 6, characterized in that: A conical end head (68) is coaxially fixedly provided at the bottom opening of the sampling tube (58), and the shaft of the conical end head (68) is provided with a through hole connected to the sampling tube (58). An external threaded portion (69) is coaxially fixedly provided on the side of the conical end head (68) close to the sampling tube (58), and an internal threaded portion matching the external threaded portion (69) is provided on the inner wall of the inner tube (59).

8. The soil sampler for land management according to claim 7, characterized in that: The positioning assembly (8) includes a matching special-shaped insertion rod (17), a special-shaped positioning hole (18) and a special-shaped insertion hole (19), wherein the special-shaped positioning hole (18) is symmetrically arranged at both ends of the switching rotating frame (4), and the special-shaped insertion holes are respectively arranged on the side wall of the rotating gear 1 (12) and the side wall of the rotating gear 2 (13), and the special-shaped insertion rod (17) is slidably inserted into the special-shaped positioning hole (18) and the special-shaped insertion hole.

Images