Shrub sand pile section stratified sampling device

Abstract

The utility model discloses a shrub sand pile section stratified sampling device, which relates to the technical field of sand pile sampling and comprises a sampling rod and a driving rod, a plurality of lengthening rods are arranged between the sampling rod and the driving rod, a sampling groove is arranged on the sampling rod, and the driving rod is rotatably arranged in a mounting groove in the middle of a mounting block. The mounting block is slidably arranged on the inner side of the lifting frame, the lifting frame is slidably arranged on the inner side of the rotating frame, the rotating frame is rotatably arranged at the upper end of the moving plate, adjusting mechanisms are arranged in the lifting frame and the rotating frame, and a moving mechanism is arranged at the bottom end of the moving plate. According to the sampling device, the rotating frame is rotationally arranged at the upper end of the moving plate, so that the sampling state of the sampling rod can be switched and adjusted, the pushing rod is arranged, the blocking frame is pushed by the pushing rod during sampling, so that the sampling groove is opened, and the rotating baffle is arranged to rotate in one direction, so that a set position can be conveniently sampled.

Description

TECHNICAL FIELD

[0001] The utility model relates to a sand heap sampling technology field, concretely is a shrub sand heap profile layered sampling device. BACKGROUND

[0002] Shrub sand heap is the convex topography that does not migrate with wind sand flow and is formed by the resistance of plant clumps to flowing detritus (sand, silt, salt grains and clay), and is a common aeolian biological geomorphology type in desert, semi-arid and semi-humid sandy land and sandy coast in arid regions. The research on shrub sand heap not only has important value in enriching the research content of aeolian geomorphology, but also has important significance in monitoring and evaluating land desertification and reconstructing regional environmental evolution history. In order to study the age structure of the sand heap, the middle part of the sand heap needs to be collected and sampled, and light shielding treatment is required during sampling. Most shrub sand heaps can be sampled by vertical sampling, and due to the particularity of the formation of the sand heap, sampling can only be carried out through the side of the sand heap when sampling some special sand heaps, and the sample falls vertically when sampling horizontally, but the sampling device is horizontally placed, so that the existing sampling device can only be used for vertical sampling, and therefore cannot be used for sampling each layer in the horizontal direction.

[0003] Therefore, the present application provides a shrub sand heap profile layered sampling device, which can eliminate the drawbacks of the existing device. UTILITY MODEL CONTENT

[0004] The utility model aims at providing a shrub sand heap profile layered sampling device to solve the problem of inconvenient horizontal sampling in the background art.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical scheme:

[0006] The utility model provides a kind of bush profile stratified sampling device, including sampling rod and drive rod, the sampling rod is coaxially arranged with drive rod, several growth rods are equipped between the sampling rod and drive rod, the sampling rod one end is equipped with connecting slot, connecting block is sleeved in the connecting slot, the growth rod both ends are respectively equipped with connecting block and connecting slot, the drive rod one end is fixedly equipped with connecting block, the sampling rod and drive rod are fixedly connected with growth rod by fastening screw, sampling groove is equipped on the sampling rod, the sampling rod inside and sampling groove opening are slidably equipped with blocking frame, the drive rod inside is equipped with push assembly for facilitating pushing blocking frame to move and sampling, the drive rod is rotatably arranged in the middle installation slot of mounting block, the mounting block is slidably arranged in the inner side of lifting frame, the lifting frame is slidably arranged in the inner side of rotary frame, the rotary frame is rotatably arranged on the upper end of moving plate, the lifting frame and rotary frame inside are equipped with adjusting mechanism for adjusting the working height of sampling rod, the bottom end of moving plate is equipped with moving mechanism for driving sampling rod to move.

[0007] On the basis of the above technical scheme, the utility model further provides the following optional technical schemes:

[0008] In an alternative scheme: the push assembly includes a push rod, the sampling rod, the growth rod and the drive rod are slidably provided with a push rod inside, the first fixed plate is fixedly provided on the push rod inside the sampling rod and the growth rod, the first fixed plate one side is equipped with reset spring between the sampling rod and the growth rod inside, the blocking frame is fixedly connected with the one end of the push rod inside the sampling rod, the sealing block is fixedly provided in the sampling groove, the one side of the sealing block is provided with a rotating baffle, the rotating baffle is rotatably arranged in the sampling groove, the torsional spring is provided at the connection between the rotating baffle both ends rotating shaft and the sampling rod, the scraping knife is provided at the opening of the sampling groove, the scraping knife is slidably arranged in the sampling rod, the scraping knife one end is fixedly provided with a guide block, the guide block one side is obliquely arranged, the guide block inclined surface is closely arranged with one end of push frame, the push frame is slidably arranged in the sampling rod, the scraping knife one side is fixedly provided with a sliding plate, the pull spring is provided between the bottom end of the sliding plate and the sampling rod inside, the first rotating plate is rotatably arranged on the one end of the push rod inside the drive rod, the first rotating plate is fixedly arranged on the output end of the first electric push rod, the first electric push rod is installed in the mounting hole one side of mounting block, the bearing is fixedly arranged on the drive rod, the outer ring of the bearing is closely arranged with fixed tube, the fixed tube is fixedly arranged on the one side of mounting block, the gear ring is fixedly arranged on the one end of the drive rod, the gear ring is meshingly provided with a gear, the gear is fixedly arranged on the output end of the first motor, the first motor is fixedly arranged on the one side of mounting block.

[0009] In an optional scheme: the adjusting mechanism includes a second motor and a second electric push rod, second fixed plates are fixedly arranged on both sides of the lifting frame, the second fixed plates are slidably arranged on the inner sides of the rotating frames, the bottom ends of the two rotating frames are fixedly connected with the output ends of the two second electric push rods respectively, the second electric push rods are fixedly arranged at the bottom end of the inner side of the rotating frame, fixed blocks are fixedly arranged on both sides of the mounting block, sliding holes and threaded holes are arranged at one end of the two fixed blocks respectively, first guide sliding rods are slidably arranged in the sliding holes, the first guide sliding rods are fixedly arranged on the inner side of the lifting frame, first screws are arranged in the threaded holes in a matched mode, the two ends of the first screw are rotatably arranged on the inner side of the lifting frame, one end of the first screw is fixedly connected with the output end of the second motor, the second motor is fixedly arranged at the bottom end of the inner side of the lifting frame, and a rotating assembly for switching the working state of the sampling rod is arranged on the upper end of the moving plate.

[0010] In an optional scheme: the rotating assembly includes a worm gear, worm gears are rotatably arranged on the rotating shafts on both sides of the rotating frame, worm gears are arranged on the worm gears in a meshed mode, second rotating plates are rotatably arranged on the two ends of the worm gear, the second rotating plates are fixedly arranged on the upper end of the moving plate, and one end of the rotating shaft of the worm gear is fixedly connected with the output end of the third motor.

[0011] In an optional scheme: the moving plate is fixedly provided with a positioning strip on the upper end.

[0012] In an optional scheme: the moving mechanism includes a second threaded rod, third rotating plates are rotatably arranged at the two ends of the second threaded rod, the third rotating plates are fixedly arranged on the upper end of the vehicle body, a fixed screw block is arranged on the second threaded rod in a matched mode, the fixed screw block is fixedly arranged at the bottom end of the moving plate, one end of the second threaded rod is fixedly connected with the output end of the fourth motor, the fourth motor is fixedly arranged on one side of the vehicle body, second guide sliding rods are symmetrically arranged at the bottom end of the moving plate, guide pipes are slidably arranged on the second guide sliding rods, and the guide pipes are fixedly arranged on the upper end of the vehicle body.

[0013] In an optional scheme: third electric push rods are symmetrically arranged on both sides of the vehicle body, fixed discs are fixedly arranged at the output ends of the third electric push rods, and stop nails are fixedly arranged at the bottom ends of the fixed discs.

[0014] In an optional scheme: one side of the vehicle body is provided in an open mode, and collecting boxes are symmetrically arranged in the vehicle body.

[0015] Compared with the prior art, the utility model has the advantages as follows:

[0016] The utility model discloses a movable plate is provided with the worm wheel and the worm cooperation, and the worm wheel and the worm cooperation can produce self -locking, so that the stability of sampling when increasing the sampling rod is increased, the inside of the movable plate is provided with the lifting frame, and the installation block sliding is established in the inside of the lifting frame, so that the height is adjusted to the sampling rod horizontal sampling makes, and the stratified sampling of sampling rod is convenient, the inside of sampling rod, growth pole and drive rod is all slidingly provided with the push -pull rod, and when sampling, the push -pull rod pushes the blocking frame, so that the sampling groove is opened, and one -way rotation is carried out through the setting rotary baffle, so that the sampling of setting position is convenient, prevents the sample of sampling rod when moving the rest position from entering the sampling groove and causes the sample confusion, thereby the practicality of bush sand heap profile stratified sampling device is increased. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is the structure schematic drawing of the utility model.

[0018] Figure 2 It is the structure schematic drawing of the utility model.

[0019] Figure 3 It is the second screw rod installation schematic drawing of the utility model.

[0020] Figure 4 It is the lifting frame and rotary frame structure schematic drawing of the utility model.

[0021] Figure 5 It is the sampling rod structure schematic drawing of the utility model.

[0022] Figure 6 It is the sampling rod internal structure schematic drawing of the utility model.

[0023] Figure 7 It is the guide block and push -pull frame structure schematic drawing of the utility model.

[0024] Figure 8 It is the drive rod structure schematic drawing of the utility model.

[0025] Mark annotation: 11 sampling rod, 12 growth pole, 13 drive rod, 14 blocking frame, 15 push -pull rod, 16 return spring, 17 sealing block, 18 rotary baffle, 19 scraping knife, 20 guide block, 21 push -pull frame, 22 tension spring, 23 first electric push rod, 24 first motor, 25 installation block, 26 bearing, 27 lifting frame, 28 first screw rod, 29 second motor, 30 rotary frame, 31 second electric push rod, 32 worm wheel, 33 worm, 34 third motor, 35 movable plate, 36 second screw rod, 37 fourth motor, 38 car body, 39 third electric push rod, 40 collection box, 41 guide pipe. DETAILED DESCRIPTION

[0026] In order to make the purpose, technical scheme and advantages of the utility model more clearly, the following will be further detailed with the utility model combined with the drawings and examples.

[0027] In one embodiment, as shown in Figures 1-8 A bush sand dune profile layered sampling device, comprising a sampling rod 11 and a driving rod 13, the sampling rod 11 is coaxially arranged with the driving rod 13, a plurality of growth rods 12 are arranged between the sampling rod 11 and the driving rod 13, the sampling rod 11 is provided with a connecting groove at one end, the connecting groove is sleeved with a connecting block, the growth rod 12 is provided with a connecting block and a connecting groove at both ends respectively, the driving rod 13 is fixedly provided with a connecting block at one end, the sampling rod 11 and the driving rod 13 are fixedly connected with the growth rod 12 through fastening screws, the sampling rod 11 is provided with a sampling groove, a blocking frame 14 is slidably arranged in the sampling rod 11 and the sampling groove opening, the driving rod 13 is internally provided with a push-moving assembly for facilitating the movement of the blocking frame 14 for sampling, the driving rod 13 is rotatably arranged in the middle installation groove of the installation block 25, the installation block 25 is slidably arranged on the inner side of the lifting frame 27, the lifting frame 27 is slidably arranged on the inner side of the rotating frame 30, the rotating frame 30 is rotatably arranged on the upper end of the moving plate 35, the lifting frame 27 and the rotating frame 30 are internally provided with an adjusting mechanism for adjusting the working height of the sampling rod 11, the bottom end of the moving plate 35 is provided with a moving mechanism for driving the sampling rod 11 to move, the adjusting mechanism is convenient for adjusting the sampling height of the sampling rod 11, so that layered sampling is realized, and the moving mechanism is convenient for driving the sampling rod 11 to move for sampling;

[0028] The pushing assembly includes a pushing rod 15. The pushing rod 15 is slidably mounted inside the sampling rod 11, the growth rod 12, and the drive rod 13. A first fixing plate is fixedly mounted on the pushing rod 15 inside the sampling rod 11 and the growth rod 12. A return spring 16 is provided between one side of the first fixing plate and the inside of the sampling rod 11 and the growth rod 12. The sealing frame 14 is fixedly connected to one end of the pushing rod 15 inside the sampling rod 11. A sealing block 17 is fixedly mounted inside the sampling groove. A rotating baffle 18 is fitted on one side of the sealing block 17. The rotating baffle 18 is rotatably mounted inside the sampling groove. Torsion springs are provided at the connection points between the rotating shafts at both ends of the rotating baffle 18 and the sampling rod 11. A scraper 19 is provided at the opening of the sampling groove. The scraper 19 is slidably disposed inside the sampling rod 11. A guide block 20 is fixedly disposed at one end of the scraper 19. One side of the guide block 20 is inclined, and the inclined surface of the guide block 20 is tightly attached to one end of the pusher frame 21. The pusher frame 21 is slidably disposed inside the sampling rod 11. A sliding plate is fixedly disposed on one side of the scraper 19. A tension spring 22 is disposed between the bottom end of the sliding plate and the interior of the sampling rod 11. A first rotating plate is rotatably disposed at one end of the pusher rod 15 inside the drive rod 13. The first rotating plate is fixedly disposed on the output end of the first electric pusher 23. The first electric pusher 23 is installed in a mounting hole on one side of the mounting block 25. A bearing 26 is fixedly disposed on the drive rod 13. A fixing tube is tightly attached to the outer ring of the bearing 26. The fixed tube is mounted on one side of the mounting block 25. A gear ring is fixedly mounted on one end of the drive rod 13, and a gear meshes with the gear ring. The gear is fixed to the output end of the first motor 24, which is also fixed to one side of the mounting block 25. During use, when sampling, the output end of the first motor 24 drives the gear to rotate. The gear meshes with the gear ring, causing the drive rod 13 to rotate. The drive rod 13, through several extension rods 12, drives the sampling rod 11 to rotate. When the sampling groove on the sampling rod 11 moves to the sampling position in the middle of the shrub sand pile, one end of the sampling rod 11 stops moving and only rotates. Subsequently, the output end of the first electric push rod 23 retracts, causing the internal push rod 15 of the drive rod 13 to push the internal push rod 15 of the extension rod 12. The sliding growth rod 12 pushes the internal push rod 15 of the sampling rod 11, causing the internal push rod 15 of the sampling rod 11 to push the sealing frame 14 to slide, thus opening the sampling slot. At the same time, when the sealing frame 14 moves, it pushes the push frame 21 to move. The push frame 21 moves at the inclined surface of the guide block 20, causing the guide block 20 to push the scraper 19 to move. One end of the scraper 19 gradually extends to the outside of the sampling rod 11, so that the sample in the middle of the sand pile is scraped. The sample scraped by the scraper 19 falls onto the upper end of the rotating baffle 18. When there is a lot of sample accumulated on the upper end of the rotating baffle 18, the rotating baffle 18 rotates, causing the sample to fall into the sampling slot. When the sampling slot opening is facing down, the sample will not fall off under the action of the rotating baffle 18.

[0029] The adjusting mechanism includes a second motor 29 and a second electric push rod 31. Second fixing plates are fixedly mounted on both sides of the lifting frame 27, and these plates are slidably disposed inside the rotating frame 30. The bottom ends of the two rotating frames 30 are respectively fixedly connected to the output ends of the two second electric push rods 31. The second electric push rods 31 are fixedly disposed inside the bottom end of the rotating frame 30. Fixing blocks are fixedly mounted on both sides of the mounting block 25. One end of each fixing block is provided with a sliding hole and a threaded hole. A first guide rod is slidably disposed in the sliding hole and fixedly disposed inside the lifting frame 27. A first screw 28 is fitted into the threaded hole, and both ends of the first screw 28 are rotatably disposed inside the lifting frame 27. One end of the first screw 28 is fixedly connected to the output end of the second motor 29, which is fixedly installed at the bottom of the lifting frame 27. When it is needed to adjust the working height of the sampling rod 11, the second motor 29 is started. The output end of the second motor 29 drives the first screw 28 to rotate. Under the action of the screw, the mounting block 25 moves along the axis of the first guide slide rod, thereby adjusting the working height of the sampling rod 11. If further adjustment of the working height of the sampling rod 11 is needed, the second electric push rod 31 is started. The output end of the second electric push rod 31 drives the lifting frame 27 to move, thereby further adjusting the working height of the sampling rod 11. The upper end of the moving plate 35 is provided with a rotating component for switching the working state of the sampling rod 11.

[0030] The rotating assembly includes a worm gear 32. Worm gears 32 are fixedly mounted on the rotating shafts on both sides of the rotating frame 30. Worms 33 are meshed on both worm gears 32. Second rotating plates are rotatably mounted on the rotating shafts at both ends of the worm 33. The second rotating plates are fixedly mounted on the upper end of the moving plate 35. One end of the rotating shaft of the worm 33 is fixedly connected to the output end of a third motor 34. The third motor 34 is fixedly mounted on the upper end of the moving plate 35. In use, when the sampling rod 11 is being used vertically or needs to be stored, the third motor 34 is activated. The output end of the third motor 34 drives the worm 33 to rotate. The worm 33 meshes with the worm gear 32, causing the worm gear 32 to rotate. The rotating frame 30 rotates, which drives the sampling rod 11 to rotate, so that the length direction of the rotating frame 30 is parallel to the length direction of the moving plate 35, enabling vertical sampling. When sampling vertically, as the scraper 19 scrapes away the sample, the sample inside the sampling groove increases. When sampling vertically, different sampling rods 11 need to be replaced, so that the torsion spring torque is different and the initial position of the rotating baffle 18 is tilted, thus enabling vertical sampling. When horizontal sampling is required, the third motor 34 is started, and the worm gear 32 drives the rotating frame 30 to rotate, so that the length direction of the rotating frame 30 is perpendicular to the length direction of the moving plate 35, enabling the sampling rod 11 to perform horizontal sampling.

[0031] The upper end of the movable plate 35 is fixedly provided with a positioning strip. When the sampling is completed, the rotating frame 30 needs to be rotated to its initial position. When one side of the rotating frame 30 is in close contact with the side of the positioning strip, the rotating frame 30 will no longer rotate. At the same time, the positioning strip can also support the rotating frame 30.

[0032] The moving mechanism includes a second threaded rod 36, with a third rotating plate rotatably mounted at both ends of the second threaded rod 36. The third rotating plates are fixedly mounted on the upper end of the vehicle body 38. A fixing screw block is fitted on the second threaded rod 36 and fixedly mounted on the bottom end of the moving plate 35. One end of the second threaded rod 36 is fixedly connected to the output end of a fourth motor 37, which is fixedly mounted on one side of the vehicle body 38. A second guide slide rod is symmetrically mounted on the bottom end of the moving plate 35, and a guide tube 41 is slidably mounted on each of the second guide slide rods. The guide tubes 41 are fixedly mounted on the upper end of the vehicle body 38. In use, when the sampling rod 11 takes a sample, the fourth motor 37 is started. The fourth motor 37 drives the second threaded rod 36 to rotate. Under the action of the thread, the fixing screw block drives the moving plate 35 to move. The moving plate 35 drives one end of the sampling rod 11 to move. When the fixing screw block moves to one end of the second threaded rod 36, the number of extension rods 12 can be increased according to the usage conditions to ensure that one end of the sampling rod 11 can be moved to the sampling point.

[0033] The vehicle body 38 is symmetrically provided with third electric push rods 39 on both sides. Each third electric push rod 39 has a fixed plate at its output end and a stop pin at the bottom of each fixed plate. When in use, when the sampling rod 11 takes a sample, several third electric push rods 39 are activated at the same time. The output ends of the third electric push rods 39 drive several stop pins to move, so that the stop pins are inserted into the ground, thereby fixing the vehicle body 38.

[0034] The vehicle body 38 has an opening on one side, and the inside of the vehicle body 38 is symmetrically provided with collection boxes 40, which facilitates the storage of the growth rod 12 during use.

[0035] The above embodiment discloses a stratified sampling device for shrub sand dune profiles. When stratified sampling of shrub sand dunes is required, the vehicle body 38 is moved to the work site. Then, several third electric push rods 39 are activated. The output ends of the third electric push rods 39 drive several stop pins to move, causing the stop pins to insert into the soil and fix the vehicle body 38. A third electric motor 34 is activated, and a worm gear 32 drives a rotating frame 30 to rotate, making the length direction of the rotating frame 30 perpendicular to the length direction of the moving plate 35. Several extension rods 12 are added between the sampling rod 11 and the drive rod 13. Based on the desired sampling height of the sampling rod 11, a second electric... The output of the second motor 29 drives the first screw 28 to rotate. Under the action of the screw, the mounting block 25 moves along the axis of the first guide slide rod, thereby adjusting the working height of the sampling rod 11. If further adjustment of the working height of the sampling rod 11 is required, the second electric push rod 31 is activated. The output of the second electric push rod 31 drives the lifting frame 27 to move, thereby further adjusting the working height of the sampling rod 11. During sampling, the output of the first motor 24 drives the gear to rotate. The gear meshes with the gear ring, driving the drive rod 13 to rotate. The drive rod 13 drives the sampling rod 11 to rotate through several extension rods 12, thus activating the second electric push rod 29. The fourth motor 37 drives the second threaded rod 36 to rotate. Under the action of the thread, the fixed screw block moves the moving plate 35, which in turn moves one end of the sampling rod 11. When the fixed screw block moves to one end of the second threaded rod 36, the number of growth rods 12 can be increased according to the usage conditions to ensure that one end of the sampling rod 11 can move to the sampling point. When the sampling groove on the sampling rod 11 moves to the sampling position in the middle of the shrub sand pile, one end of the sampling rod 11 stops moving and only rotates. Then, the output end of the first electric push rod 23 retracts, causing the internal push rod 15 of the drive rod 13 to push the internal push rod 15 of the growth rod 12. The sliding growth rod 12 pushes the internal push rod 15 of the sampling rod 11, causing the internal push rod 15 of the sampling rod 11 to push the sealing frame 14 to slide, thus opening the sampling slot. At the same time, when the sealing frame 14 moves, it pushes the push frame 21 to move. The push frame 21 moves at the inclined surface of the guide block 20, causing the guide block 20 to push the scraper 19 to move. One end of the scraper 19 gradually extends to the outside of the sampling rod 11, so that the sample in the middle of the sand pile is scraped. The sample scraped by the scraper 19 falls onto the upper end of the rotating baffle 18. When there is a lot of sample accumulated on the upper end of the rotating baffle 18, the rotating baffle 18 rotates, causing the sample to fall into the sampling slot.

[0036] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A stratified sampling device for shrubland sand dune profile, comprising a sampling rod (11) and a driving rod (13), wherein the sampling rod (11) and the driving rod (13) are coaxially arranged, and a plurality of extension rods (12) are provided between the sampling rod (11) and the driving rod (13), one end of the sampling rod (11) is provided with a connecting groove, and a connecting block is sleeved in the connecting groove; both ends of the extension rods (12) are respectively provided with connecting blocks and connecting grooves; one end of the driving rod (13) is fixedly provided with a connecting block; the sampling rod (11) and the driving rod (13) are both fixedly connected to the extension rods (12) by fastening screws, characterized in that, The sampling rod (11) is provided with a sampling slot. A sealing frame (14) is slidably provided inside the sampling rod (11) and at the opening of the sampling slot. A pushing component is provided inside the drive rod (13) to facilitate the movement of the sealing frame (14) for sampling. The drive rod (13) is rotatably located in the mounting slot in the middle of the mounting block (25). The mounting block (25) is slidably located inside the lifting frame (27). The lifting frame (27) is slidably located inside the rotating frame (30). The rotating frame (30) is rotatably located on the upper end of the moving plate (35). An adjustment mechanism for adjusting the working height of the sampling rod (11) is provided inside the lifting frame (27) and the rotating frame (30). A moving mechanism for driving the sampling rod (11) to move is provided at the bottom end of the moving plate (35).

2. The stratified sampling device for shrubland sand dune profile according to claim 1, characterized in that, The pushing assembly includes a pushing rod (15). The pushing rod (15) is slidably provided inside the sampling rod (11), the growth rod (12), and the driving rod (13). A first fixing plate is fixedly provided on the pushing rod (15) inside the sampling rod (11) and the growth rod (12). A return spring (16) is provided between one side of the first fixing plate and the inside of the sampling rod (11) and the growth rod (12). The sealing frame (14) is fixed to one end of the pushing rod (15) inside the sampling rod (11). A fixed connection is provided, and a sealing block (17) is fixedly provided in the sampling groove. A rotating baffle (18) is provided on one side of the sealing block (17). The rotating baffle (18) is rotatably disposed in the sampling groove. A torsion spring is provided at the connection between the rotating shaft at both ends of the rotating baffle (18) and the sampling rod (11). A scraper (19) is provided at the opening of the sampling groove. The scraper (19) is slidably disposed inside the sampling rod (11). A guide block (20) is fixedly provided at one end of the scraper (19). The guide block (20) is inclined on one side, and the inclined surface of the guide block (20) is closely attached to one end of the pusher frame (21). The pusher frame (21) is slidably disposed inside the sampling rod (11). A sliding plate is fixedly disposed on one side of the scraper (19). A tension spring (22) is disposed between the bottom end of the sliding plate and the inside of the sampling rod (11). A first rotating plate is rotatably disposed at one end of the pusher rod (15) inside the drive rod (13). The first rotating plate is fixedly disposed on the output end of the first electric pusher rod (23). The first electric push rod (23) is installed in the mounting hole on one side of the mounting block (25). A bearing (26) is fixed on the drive rod (13). A fixing tube is attached to the outer ring of the bearing (26). The fixing tube is fixed on one side of the mounting block (25). A gear ring is fixed at one end of the drive rod (13). A gear is meshed on the gear ring. The gear is fixed on the output end of the first motor (24). The first motor (24) is fixed on one side of the mounting block (25).

3. The stratified sampling device for shrubland sand dune profiles according to claim 1, characterized in that, The adjustment mechanism includes a second motor (29) and a second electric push rod (31). A second fixing plate is fixedly mounted on both sides of the lifting frame (27). The second fixing plates are slidably mounted inside the rotating frame (30). The bottom ends of the two rotating frames (30) are respectively fixedly connected to the output ends of the two second electric push rods (31). The second electric push rods (31) are fixedly mounted inside the bottom end of the rotating frame (30). Fixing blocks are fixedly mounted on both sides of the mounting block (25). One end of each fixing block is provided with a sliding hole and a thread. The sliding hole has a first guide slide rod that is slidably provided inside it. The first guide slide rod is fixedly provided inside the lifting frame (27). The threaded hole has a first screw (28) that is fitted inside it. Both ends of the first screw (28) are rotatably provided inside the lifting frame (27). One end of the first screw (28) is fixedly connected to the output end of the second motor (29). The second motor (29) is fixedly provided inside the bottom end of the lifting frame (27). The upper end of the moving plate (35) is provided with a rotating assembly for switching the working state of the sampling rod (11).

4. The stratified sampling device for shrubland sand dune profiles according to claim 3, characterized in that, The rotating assembly includes a worm gear (32). The worm gear (32) is fixedly mounted on the rotating shafts on both sides of the rotating frame (30). The worm gear (32) is meshed with a worm (33). The rotating shafts at both ends of the worm (33) are rotatably mounted with a second rotating plate. The second rotating plate is fixedly mounted on the upper end of the moving plate (35). The rotating shaft at one end of the worm (33) is fixedly connected to the output end of a third motor (34). The third motor (34) is fixedly mounted on the upper end of the moving plate (35).

5. A stratified sampling device for shrubland sand dune profiles according to claim 4, characterized in that, The upper end of the movable plate (35) is fixedly provided with a positioning strip.

6. The stratified sampling device for shrubland sand dune profiles according to claim 1, characterized in that, The moving mechanism includes a second threaded rod (36), with a third rotating plate rotatably mounted at both ends of the second threaded rod (36). The third rotating plates are fixedly mounted on the upper end of the vehicle body (38). A fixing screw block is fitted on the second threaded rod (36), and the fixing screw block is fixedly mounted on the bottom end of the moving plate (35). One end of the second threaded rod (36) is fixedly connected to the output end of the fourth motor (37), and the fourth motor (37) is fixedly mounted on one side of the vehicle body (38). A second guide slide rod is symmetrically mounted on the bottom end of the moving plate (35), and a guide tube (41) is slidably mounted on each of the second guide slide rods. The guide tubes (41) are fixedly mounted on the upper end of the vehicle body (38).

7. A stratified sampling device for shrubland sand dune profiles according to claim 6, characterized in that, The vehicle body (38) is symmetrically provided with a third electric push rod (39) on both sides. The output end of the third electric push rod (39) is fixedly provided with a fixed plate, and the bottom end of the fixed plate is fixedly provided with a stop pin.

8. A stratified sampling device for shrubland sand dune profiles according to claim 7, characterized in that, The vehicle body (38) has an opening on one side, and collection boxes (40) are symmetrically arranged inside the vehicle body (38).

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