A soil sampling device for agricultural information collection

Abstract

The present invention belongs to the field of soil sampling, and specifically relates to a soil sampling device for agricultural information collection, including a T-shaped rod. The bottom end of the T-shaped rod is fixedly connected to the top end of a sampling cylinder. Four groups of sampling grooves are formed on the surface of the sampling cylinder. An opening and closing mechanism is arranged inside the sampling grooves, and the opening and closing mechanism is used to open and close the sampling grooves. A collection cylinder is sleeved inside the sampling cylinder, and a pulling mechanism is arranged on the collection cylinder. The pulling mechanism is used to pull the collection cylinder so that the collection cylinder can slide normally inside the sampling cylinder to facilitate taking out the soil inside the collection cylinder. Through the structural design of the pulling mechanism, after the collection cylinder is filled with soil, only by pulling the collection cylinder upward and making the collection cylinder slide inside the sampling cylinder, the soil sample inside the collection cylinder can be transported to the ground without having to pull out the sampling cylinder from the soil, thus making the sampling process more labor-saving and convenient.

Description

Technical Field

[0001] The present invention relates to the field of soil sampling, and specifically to a soil sampling device for agricultural information collection. Background Art

[0002] Soil carbon storage refers to the total amount of carbon fixed in the soil, which is an important indicator of soil quality. By measuring soil carbon storage, the fertility status of the soil can be understood, providing a basis for rational fertilization. Before measurement, a sampling device is needed to take out the soil, and then a professional instrument is used for measurement.

[0003] According to a soil carbon storage measurement sampling device proposed in the patent document CN221426012U, which relates to the technical field of soil sampling devices. A soil carbon storage measurement sampling device includes a sampling cylinder, and the top of the sampling cylinder is fixedly connected with an extension cylinder. The inner wall of the extension cylinder is communicated with the inner wall of the sampling cylinder. A push block is arranged inside the sampling cylinder. By setting a positioning ring and a rubber ring, when sampling the soil, the sampling cylinder is inserted into the soil. The ground will block the positioning ring, and the positioning ring will compress the spring, causing the spring to deform. Then, after the soil sampling is completed and the sampling cylinder is pulled out, the deformed spring will drive the positioning ring and the rubber ring to reset. During the movement of the rubber ring, it will scrape the outer surface of the sampling cylinder, scraping off the soil attached to the outer surface of the sampling cylinder, which is beneficial to preventing this soil from falling into the soil sample and causing a certain degree of pollution to the soil sample.

[0004] However, for the soil sampling device in the above technology, when sampling soils at different depths, due to the limited volume of the sampling cylinder, after the sampling cylinder is filled with soil, the sampling cylinder needs to be completely pulled out from the sampling point. After scraping out the soil collected inside, the sampling cylinder can be used to continue the sampling operation. Generally, the friction between the outer side of the sampling cylinder and the soil is relatively large, and it will be very laborious during the process of pulling out the sampling cylinder and reinserting the sampling cylinder into the sampling point. Therefore, a soil sampling device for agricultural information collection is proposed to solve the above problems. Summary of the Invention

[0005] In order to solve the problem that for the soil sampling device in the above technology, when sampling soils at different depths, due to the limited volume of the sampling cylinder, after the sampling cylinder is filled with soil, the sampling cylinder needs to be completely pulled out from the sampling point. After scraping out the soil collected inside, the sampling cylinder can be used to continue the sampling operation. Generally, the friction between the outer side of the sampling cylinder and the soil is relatively large, and it will be very laborious during the process of pulling out the sampling cylinder and reinserting the sampling cylinder into the sampling point, the present invention proposes a soil sampling device for agricultural information collection.

[0006] The technical solution adopted by the present invention to solve its technical problems is as follows: An agricultural information collection soil sampling device described in the present invention includes a T-shaped rod. The bottom end of the T-shaped rod is fixedly connected to the top end of a sampling cylinder. Four groups of sampling grooves are provided on the surface of the sampling cylinder. An opening and closing mechanism is arranged inside the sampling grooves, and the opening and closing mechanism is used to open and close the sampling grooves. A collection cylinder is sleeved inside the sampling cylinder. A pulling mechanism is arranged on the collection cylinder, and the pulling mechanism is used to pull the collection cylinder so that the collection cylinder can slide normally inside the sampling cylinder to facilitate taking out the soil inside the collection cylinder. Through grooves are provided on both sides of the collection cylinder. The inner wall of the through groove is rotatably connected to a rotating plate. A pushing mechanism is arranged inside the rotating plate, and the pushing mechanism is used to push the rotating plate to rotate to facilitate opening the through groove.

[0007] Preferably, the pulling mechanism includes a movable rod. The movable rod is sleeved inside the T-shaped rod. The bottom end of the movable rod is fixedly connected to the top end of the collection cylinder. The top end of the movable rod is fixedly connected to a top plate. The bottom end of the top plate is in contact with the inner wall of the installation groove. The installation groove is opened at the top end of the T-shaped rod. The top end of the top plate is flush with the top end of the T-shaped rod. Two groups of handles are fixedly connected to the top end of the top plate.

[0008] Preferably, the opening and closing mechanism includes four groups of sealing plates. The sealing plates are all designed in an arc shape. The sealing plates are slidably connected inside a storage groove. The storage groove is opened inside the sampling groove. The top end of the sealing plate is fixedly connected to a connecting block. The top end of the connecting block is fixedly connected to the top end of a sleeve. The sleeve is sleeved outside the T-shaped rod. The bottom end of the sleeve is in contact with the top end of the sampling cylinder. Two groups of guiding grooves are opened on the inner wall of the sleeve. The inner wall of the guiding groove is slidably connected to a convex block. The convex block is fixedly connected to a position near the bottom end of the movable rod. The convex block is slidably connected inside a vertical groove. The vertical groove is opened at the bottom end of the T-shaped rod.

[0009] Preferably, the pushing mechanism includes two groups of arc-shaped plates. The bottom ends of the arc-shaped plates are fixedly connected to the inner walls of the rotating plates. The two groups of arc-shaped plates are respectively engaged with a group of second gears. There are two groups of second gears. A first gear is fixedly connected to the second gear. The first gear is engaged with a rack. The top end of the rack is fixedly connected to a connecting plate. The second gear is rotatably connected to a mounting bracket. The mounting bracket is fixedly connected to the top end of the collection cylinder. An arc-shaped sliding groove is opened at the top end of the collection cylinder. The sliding groove penetrates the top end and the push block of the collection cylinder. The bottom end of the push block is designed in a conical shape. The top end of the connecting plate is fixedly connected to the bottom end of a sliding rod. The sliding rod is sleeved inside the movable rod. A spring is sleeved on the top end of the sliding rod. The top end and the bottom end of the spring are respectively fixedly connected to a fixed block and the sliding rod. The fixed block is fixedly connected to the inner wall of the movable rod.

[0010] Preferably, the inside of the sealing plate is penetrated by two fixing rings, and the fixing rings are fixedly connected to the inside of the sampling cylinder. The two fixing rings are close to the top and bottom of the sampling groove.

[0011] Preferably, the cross-sections of the top and bottom of the sliding rod are both designed in a T shape. The bottom end of the sliding rod penetrates through the limiting ring, and the limiting ring is fixedly connected to the inner wall of the movable rod.

[0012] Preferably, the sliding groove penetrates through the collection cylinder and the push block. The push block is fixedly connected to the bottom end of the collection cylinder, and a sealing block is fixedly connected to the bottom end of the sliding groove opened on the push block.

[0013] Preferably, an inclined surface is provided at the bottom end of the rotating plate, and a groove is provided on the arc-shaped plate.

[0014] Preferably, two connecting columns are fixedly connected to the bottom end of the connecting plate, and the bottom ends of the connecting columns penetrate through the collection cylinder and the push block.

[0015] Preferably, there are two first gears, and the two first gears do not contact each other.

[0016] The beneficial effects of the present invention are as follows:

[0017] 1. Through the structural design of the pulling mechanism of the present invention, after the collection cylinder is filled with soil, only by pulling the collection cylinder upward and making the collection cylinder slide inside the sampling cylinder, the soil sample inside the collection cylinder can be transported to the ground, without having to pull out the sampling cylinder from the soil, thus making the sampling process more labor-saving and convenient, and solving the problem of the existing soil sampling device that when sampling soils at different depths, due to the limited volume of the sampling cylinder, after the sampling cylinder is filled with soil, the sampling cylinder needs to be completely pulled out from the sampling point, and after scraping out the soil collected inside, the sampling cylinder can be used to continue the sampling operation. Generally, the friction between the outside of the sampling cylinder and the soil is relatively large, and it will be very laborious during the process of pulling out the sampling cylinder and inserting the sampling cylinder back into the sampling point again.

[0018] 2. Through the structural design of the opening and closing mechanism of the present invention, when the collection cylinder slides upward to the maximum height inside the sampling cylinder, at this time, the sealing plate on the sampling cylinder will be received into the receiving groove, thereby opening the sampling groove and making the inside of the sampling cylinder communicate with the outside, so as to facilitate the subsequent removal of the soil. And during the process of the sampling cylinder and the collection cylinder sampling the soil, the sealing plate can seal the sampling groove, thereby preventing the soil from entering the inside of the sampling cylinder from the sampling groove.

[0019] 3. Through the structural design of the pushing mechanism in the present invention, when the collection cylinder slides to the maximum height inside the sampling cylinder, pressing the sliding rod downward at this time will cause the arc-shaped plate to push the rotating plate to rotate outward, thereby opening the through groove, which facilitates taking out the soil collected inside the collection cylinder. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0021] Figure 1 is a three-dimensional structural schematic diagram of the present invention;

[0022] Figure 2 is a cross-sectional structural schematic diagram of the present invention;

[0023] Figure 3 is a structural schematic diagram of the top of the T-shaped rod of the present invention;

[0024] Figure 4 is Figure 2 a partial enlarged view of A in

[0025] Figure 5 is a structural schematic diagram of the sampling cylinder of the present invention;

[0026] Figure 6 is a structural schematic diagram of the collection cylinder of the present invention;

[0027] Figure 7 is a connection structural schematic diagram of the rotating plate of the present invention;

[0028] Figure 8 is an installation structural schematic diagram of the push block of the present invention;

[0029] Figure 9 is a structural schematic diagram of the top of the push block of the present invention;

[0030] Figure 10 is a structural schematic diagram of the bottom of the push block of the present invention;

[0031] Figure 11 is a structural schematic diagram of the T-shaped rod, movable rod and sliding rod of the present invention;

[0032] Figure 12 is a connection structural schematic diagram of the sealing plate of the present invention.

[0033] In the figure: 1. T-shaped rod; 20. Installation groove; 21. Movable rod; 22. Top plate; 23. Handle; 24. Sampling cylinder; 25. Collection cylinder; 26. Through groove; 27. Sliding groove; 28. Rotating plate; 29. Arc-shaped plate; 30. Groove; 31. Mounting bracket; 32. First gear; 33. Second gear; 34. Sealing block; 35. Pushing block; 36. Connecting column; 37. Connecting plate; 38. Rack; 39. Sliding rod; 40. Spring; 42. Fixed block; 43. Limiting ring; 44. Sampling groove; 45. Fixed ring; 46. Storage groove; 47. Sleeve; 48. Guide groove; 49. Connecting block; 50. Sealing plate; 51. Convex block; 52. Vertical groove. Detailed implementation mode

[0034] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a 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 those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0035] Embodiment 1

[0036] Please refer to Figure 1 - Figure 12 As shown, a soil sampling device for agricultural information collection includes a T-shaped rod 1. The bottom end of the T-shaped rod 1 is fixedly connected to the top end of the sampling cylinder 24. Four groups of sampling grooves 44 are provided on the surface of the sampling cylinder 24. An opening and closing mechanism is arranged inside the sampling groove 44, and the opening and closing mechanism is used to open and close the sampling groove 44. A collection cylinder 25 is sleeved inside the sampling cylinder 24. A pulling mechanism is arranged on the collection cylinder 25, and the pulling mechanism is used to pull the collection cylinder 25 so that the collection cylinder 25 can slide normally inside the sampling cylinder 24 to facilitate taking out the soil inside the collection cylinder 25. Through grooves 26 are provided on both sides of the collection cylinder 25. The inner wall of the through groove 26 is rotatably connected to a rotating plate 28. A pushing mechanism is arranged inside the rotating plate 28, and the pushing mechanism is used to push the rotating plate 28 to rotate to facilitate opening the through groove 26;

[0037] Furthermore, the pulling mechanism includes a movable rod 21. The movable rod 21 is sleeved inside the T-shaped rod 1. The bottom end of the movable rod 21 is fixedly connected to the top end of the collection cylinder 25. The top end of the movable rod 21 is fixedly connected to a top plate 22. The bottom end of the top plate 22 is in contact with the inner wall of the installation groove 20. The installation groove 20 is opened at the top end of the T-shaped rod 1. The top end of the top plate 22 is flush with the top end of the T-shaped rod 1. Two groups of handles 23 are fixedly connected to the top end of the top plate 22;

[0038] Through the structural design of the pulling mechanism, after the collection cylinder 25 is filled with soil inside, simply pull the collection cylinder 25 upward to make the collection cylinder 25 slide inside the sampling cylinder 24, and the soil sample inside the collection cylinder 25 can be transported to the ground without having to pull the sampling cylinder 24 out of the soil, thus making the sampling process more labor-saving and convenient. During operation, first insert the sampling cylinder 24 at the bottom of the T-shaped rod 1 into the soil. While holding the T-shaped rod 1 firmly, ensure that the top plate 22 also touches the palm to prevent the movable rod 21 from sliding upward during sampling. Then, perform sampling by rotation. Since the collection cylinder 25 is sleeved inside the sampling cylinder 24, the collected soil will be stored inside the collection cylinder 25. At this time, by pulling the movable rod 21 upward, the movable rod 21 can drive the collection cylinder 25 to slide upward inside the sampling cylinder 24, and the soil inside the collection cylinder 25 can be transported above the sampling cylinder 24. The position of the sampling cylinder 24 inside the soil can remain unchanged, thus saving the operations of pulling out the sampling cylinder 24 and reinserting the sampling cylinder 24 into the soil. When the sampled soil is relatively deep, simply pull the T-shaped rod 1 upward to make the sampling groove 44 on the sampling cylinder 24 above the horizontal plane. At this time, there is no need to completely pull the sampling cylinder 24 out of the soil. The top of the movable rod 21 is fixed with a top plate 22, and the top plate 22 fits against the inner wall of the installation groove 20. Through the abutment of the top plate 22 against the inner wall of the installation groove 20, the movable rod 21 is prevented from moving downward further inside the T-shaped rod 1. The top of the top plate 22 is flush with the top of the T-shaped rod 1 for easy gripping. Two groups of handles 23 are fixed on the top plate 22 to facilitate pulling the movable rod 21 through the handles 23.

[0039] Furthermore, the opening and closing mechanism includes four groups of sealing plates 50. The sealing plates 50 are all designed in an arc shape. The sealing plates 50 are slidably connected inside the storage groove 46. The storage groove 46 is opened inside the sampling groove 44. The top of the sealing plate 50 is fixedly connected to the connecting block 49. The top of the connecting block 49 is fixedly connected to the top of the sleeve 47. The sleeve 47 is sleeved outside the T-shaped rod 1. The bottom of the sleeve 47 touches the top of the sampling cylinder 24. Two groups of guiding grooves 48 are opened on the inner wall of the sleeve 47. A convex block 51 is slidably connected to the inner wall of the guiding groove 48. The convex block 51 is fixedly connected to the position of the movable rod 21 near the bottom. The convex block 51 is slidably connected inside the vertical groove 52. The vertical groove 52 is opened at the bottom of the T-shaped rod 1.

[0040] Through the structural design of the opening and closing mechanism, when the collection cylinder 25 slides upward to the maximum height inside the sampling cylinder 24, the sealing plate 50 on the sampling cylinder 24 will be received inside the receiving groove 46 at this time, thereby opening the sampling groove 44, allowing the inside of the sampling cylinder 24 to communicate with the outside, so as to facilitate the subsequent removal of the soil. And during the process of soil sampling by the sampling cylinder 24 and the collection cylinder 25, the sealing plate 50 can close the sampling groove 44, thereby preventing the soil from entering the inside of the sampling cylinder 24. During operation, when pulling the movable rod 21 to make the collection cylinder 25 slide inside the sampling cylinder 24, two sets of bumps 51 fixed on the bottom end of the movable rod 21 will slide in the vertical groove 52, and the bumps 51 pass through the vertical groove 52 and slide on the inner wall of the guiding groove 48. By the abutment of the bumps 51 against the inner wall of the guiding groove 48, the sleeve 47 can rotate, thereby driving the sealing plate 50 connected to its bottom end to rotate. The sealing plate 50 will finally be received inside the receiving groove 46, and the sampling groove 44 originally blocked by the sealing plate 50 will be opened, so as to facilitate the subsequent removal of the soil inside the collection cylinder 25. When the collection cylinder 25 slides upward to the maximum position, the through groove 26 opened on the collection cylinder 25 will be aligned with the sampling groove 44 opened on the sampling cylinder 24 at this time, and the size of the sampling groove 44 is larger than that of the through groove 26.

[0041] Further, the pushing mechanism includes two arc-shaped plates 29. The bottom end of the arc-shaped plate 29 is fixedly connected to the inner wall of the rotating plate 28. The two arc-shaped plates 29 are respectively engaged with a set of second gears 33. There are two sets of the second gears 33. A first gear 32 is fixedly connected to the second gear 33. The first gear 32 is engaged with a rack 38. The top end of the rack 38 is fixedly connected to a connecting plate 37. The second gear 33 is rotatably connected to a mounting frame 31. The mounting frame 31 is fixedly connected to the top end of the collection cylinder 25. An arc-shaped sliding groove 27 is opened at the top end of the collection cylinder 25. The bottom end of the push block 35 is designed in a conical shape. The top end of the connecting plate 37 is fixedly connected to the bottom end of a sliding rod 39. The sliding rod 39 is sleeved inside the movable rod 21. A spring 40 is sleeved on the top end of the sliding rod 39. The top end and the bottom end of the spring 40 are respectively fixedly connected to a fixed block 42 and the sliding rod 39. The fixed block 42 is fixedly connected to the inner wall of the movable rod 21;

[0042] Through the structural design of the pushing mechanism, when the collection cylinder 25 slides to the maximum height inside the sampling cylinder 24, at this time, when the sliding rod 39 is pressed downward, the arc-shaped plate 29 will push the rotating plate 28 to rotate outward, thereby opening the through groove 26, so as to facilitate taking out the soil collected inside the collection cylinder 25. During work, when the collection cylinder 25 slides upward to the maximum position inside the sampling cylinder 24, at this time, the top end of the sliding rod 39 is pressed downward to make the sliding rod 39 slide downward. The spring 40 fixed on the sliding rod 39 will be stretched. When the bottom end of the sliding rod 39 moves downward, it will drive the connecting plate 37 to move downward. The two groups of racks 38 fixed on the bottom end of the connecting plate 37 will move downward, thereby driving the first gear 32 meshed with the rack 38 to rotate. The first gear 32 is connected to the second gear 33, so it will drive the second gear 33 to rotate on the mounting bracket 31. The second gear 33 is meshed with the arc-shaped plate 29, so as to make the arc-shaped plate 29 slide along the sliding groove 27. The bottom end of the arc-shaped plate 29 is connected to the rotating plate 28, so it will push the rotating plate 28 outward. At this time, the rotating plate 28 can be smoothly unfolded. After the rotating plate 28 is opened, the soil inside the collection cylinder 25 can be scraped out and collected through the sampling groove 44. The top end of the sliding rod 39 is connected to the fixed block 42 through the spring 40.

[0043] Furthermore, the inside of the sealing plate 50 is penetrated by two fixing rings 45. The fixing rings 45 are fixedly connected to the inside of the sampling cylinder 24. The two fixing rings 45 are close to the top end and the bottom end of the sampling groove 44.

[0044] During work, the sealing plate 50 is penetrated by two fixing rings 45 to ensure the stability of the sealing plate 50 during the sliding process of the sealing plate 50, so that the sealing plate 50 can be smoothly received into the receiving groove 46.

[0045] Furthermore, the cross-sections of the top end and the bottom end of the sliding rod 39 are both designed in a T shape. The bottom end of the sliding rod 39 penetrates through the limiting ring 43. The limiting ring 43 is fixedly connected to the inner wall of the movable rod 21.

[0046] During work, the bottom end of the sliding rod 39 penetrates through the limiting ring 43. The limiting ring 43 is used to limit the maximum distance of the downward movement of the sliding rod 39 to prevent the sliding rod 39 from moving too far and causing the bottom end of the connecting plate 37 to abut against the first gear 32.

[0047] Furthermore, the sliding groove 27 penetrates through the collection cylinder 25 and the pushing block 35. The pushing block 35 is fixedly connected to the bottom end of the collection cylinder 25. The bottom end of the sliding groove 27 opened on the pushing block 35 is fixedly connected with a sealing block 34.

[0048] During operation, the sliding groove 27 is formed in the collection cylinder 25 and the push block 35. A sealing block 34 is fixed to the bottom end of the sliding groove 27 formed in the push block 35. The sealing block 34 is used to seal the bottom end of the push block 35 to prevent soil from entering the inside of the sliding groove 27.

[0049] Further, an inclined surface is formed at the bottom end of the rotating plate 28, and a groove 30 is formed in the arc-shaped plate 29;

[0050] During operation, an inclined surface is formed at the bottom end of the rotating plate 28 to ensure that when the rotating plate 28 rotates inside the through groove 26, the bottom end portion of the rotating plate 28 does not abut against the inner wall of the through groove 26, so as to facilitate the smooth opening of the rotating plate 28. A groove 30 is formed in the arc-shaped plate 29. The groove 30 enables the arc-shaped plate 29 to mesh with one set of second gears 33 while not contacting the other set of second gears 33, avoiding jamming.

[0051] Embodiment 2

[0052] Please refer to Figure 8 and Figure 9 As shown, as another implementation manner of the present invention compared with Embodiment 1, two connecting columns 36 are fixedly connected to the bottom end of the connecting plate 37. The bottom ends of the connecting columns 36 penetrate through the collection cylinder 25 and the push block 35;

[0053] During operation, the connecting columns 36 are fixed to the bottom end of the connecting plate 37. When the connecting plate 37 moves downward, it can play a guiding role to ensure the stability of the downward movement of the connecting plate 37.

[0054] Two sets of first gears 32 are provided, and the two sets of first gears 32 do not contact each other;

[0055] During operation, two sets of first gears 32 are provided and the two sets of first gears 32 do not contact each other to avoid friction during rotation.

[0056] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. What is described in the above embodiments and the specification only illustrates the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed.

Claims

1. A soil sampling device for collecting agricultural information, comprising a T-shaped rod (1), the bottom end of the T-shaped rod (1) being fixedly connected to the top end of a sampling tube (24), characterized in that: Four groups of sampling grooves (44) are provided on the surface of the sampling tube (24). An opening and closing mechanism is provided inside the sampling grooves (44). The opening and closing mechanism is used to open and close the sampling grooves (44). A collecting tube (25) is sleeved inside the sampling tube (24). A pulling mechanism is provided on the collecting tube (25). The pulling mechanism is used to pull the collecting tube (25) so that the collecting tube (25) can slide normally inside the sampling tube (24) so ​​as to take out the soil inside the collecting tube (25). Through grooves (26) are provided on both sides of the collecting tube (25). A rotating plate (28) is rotatably connected to the inner wall of the through groove (26). A pushing mechanism is provided on the inner side of the rotating plate (28). The pushing mechanism is used to push the rotating plate (28) to rotate so as to open the through groove (26). The pulling mechanism includes a movable rod (21), the movable rod (21) is sleeved inside the T-shaped rod (1), and the bottom end of the movable rod (21) is fixedly connected to the top end of the collecting cylinder (25); The opening and closing mechanism comprises four groups of sealing plates (50), all of which are arc-shaped. The sealing plates (50) are slidably connected to the inside of the storage groove (46), and the storage groove (46) is arranged inside the sampling groove (44). The top of the sealing plate (50) is fixedly connected to the connecting block (49), and the top of the connecting block (49) is fixedly connected to the top of the sleeve (47). The sleeve (47) is sleeved on the outside of the T-shaped rod (1), and the bottom of the sleeve (47) contacts the top of the sampling tube (24). The inner wall of the sleeve (47) is provided with two groups of guide grooves (48). The inner wall of the guide groove (48) is slidably connected with a protrusion (51), and the protrusion (51) is fixedly connected to a position close to the bottom end of the movable rod (21). The protrusion (51) is slidably connected to the inside of the vertical groove (52), and the vertical groove (52) is arranged at the bottom end of the T-shaped rod (1). The interior of the sealing plate (50) is penetrated by two sets of fixing rings (45), and the fixing rings (45) are fixedly connected to the interior of the sampling tube (24). The two sets of fixing rings (45) are close to the top and bottom ends of the sampling groove (44).

2. A soil sampling device for collecting agricultural information according to claim 1, characterized in that: The top end of the movable rod (21) is fixedly connected to a top plate (22), the bottom end of the top plate (22) is in contact with the inner wall of the mounting groove (20), the mounting groove (20) is formed at the top end of the T-shaped rod (1), the top end of the top plate (22) is kept horizontal with the top end of the T-shaped rod (1), and the top end of the top plate (22) is fixedly connected to two sets of handles (23).

3. A soil sampling device for collecting agricultural information according to claim 1, characterized in that: The pushing mechanism comprises two groups of arc-shaped plates (29), the bottom ends of the arc-shaped plates (29) are fixedly connected to the inner wall of the rotating plate (28), the two groups of arc-shaped plates (29) are respectively meshed with a group of second gears (33), two groups of second gears (33) are provided, a first gear (32) is fixedly connected to the second gear (33), the first gear (32) is meshed with a rack (38), the top end of the rack (38) is fixedly connected to the connecting plate (37), the second gear (33) is rotatably connected to the mounting frame (31), the mounting frame (31) is fixedly connected to the top end of the collecting cylinder (25), and the collecting cylinder (25) is fixedly connected to the collecting cylinder (25). A sliding groove (27) is provided at the top of the collecting tube (25), and the sliding groove (27) is designed in an arc shape. The sliding groove (27) passes through the top of the collecting tube (25) and the pushing block (35). The bottom end of the pushing block (35) is designed in a conical shape. The top end of the connecting plate (37) is fixedly connected to the bottom end of a sliding rod (39). The sliding rod (39) is sleeved inside the movable rod (21). A spring (40) is sleeved at the top end of the sliding rod (39). The top and bottom ends of the spring (40) are fixedly connected to the fixed block (42) and the sliding rod (39) respectively. The fixed block (42) is fixedly connected to the inner wall of the movable rod (21).

4. A soil sampling device for collecting agricultural information according to claim 3, characterized in that: The cross-sections of the top and bottom ends of the sliding rod (39) are both T-shaped, and the bottom end of the sliding rod (39) passes through a limiting ring (43), which is fixedly connected to the inner wall of the movable rod (21).

5. The soil sampling device for collecting agricultural information according to claim 3, characterized in that: The sliding groove (27) passes through the collecting tube (25) and the pushing block (35); the pushing block (35) is fixedly connected to the bottom end of the collecting tube (25); and a sealing block (34) is fixedly connected to the bottom end of the sliding groove (27) provided on the pushing block (35).

6. A soil sampling device for collecting agricultural information according to claim 3, characterized in that: The bottom end of the rotating plate (28) is provided with an inclined surface, and the arc-shaped plate (29) is provided with a groove (30).

7. A soil sampling device for collecting agricultural information according to claim 3, characterized in that: Two groups of connecting columns (36) are fixedly connected to the bottom end of the connecting plate (37), and the bottom ends of the connecting columns (36) penetrate the collecting cylinder (25) and the pushing block (35).

8. The soil sampling device for collecting agricultural information according to claim 3, characterized in that: Two groups of the first gears (32) are provided, and the two groups of the first gears (32) do not contact each other.

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