A bulk soil sampling device and method for large scale rice planting

Abstract

The application relates to the technical field of soil sampling, and discloses a batch soil sampling device and method for large-scale rice planting, which comprises a bottom plate and four supporting rods fixedly installed on the top of the bottom plate, the top ends of the four supporting rods are fixedly connected with a same top plate, two sampling assemblies are arranged at the bottom of the top plate, level adjusting assemblies are symmetrically arranged on the two sides of the bottom plate, the sampling assembly comprises an unfolding unit and a knocking unit, the sampling assembly is arranged, the positioning rod is unfolded when the disc is lowered, vertical sampling is facilitated, the damage to the soil layer structure and the sample mixing during sampling are reduced, the positioning rod and the side rod are spirally unfolded, the stress uniformity during the lowering and rotating sampling of the adjusting rod is maintained, the soil mixing is reduced, the subsequent detection and judgment of the soil are facilitated, the static pressure sampling mode reduces the sampling disturbance and deviation, and the sampling cylinder can be lightly knocked during the soil discharging, so that the stable discharging of the soil sample after sampling is facilitated.

Description

Technical Field

[0001] This invention relates to the field of soil sampling technology, specifically to a batch soil sampling device and method for large-scale rice cultivation. Background Technology

[0002] The soil required for rice cultivation needs to contain a large number of microorganisms suitable for rice survival. In order to determine whether rice can be grown in the soil, the soil for rice cultivation needs to be tested.

[0003] For example, a soil sampling device for soil analysis, disclosed in CN118090313B, belongs to the field of soil sampling technology. It includes a foldable sampling disc and sampling components. The foldable sampling disc includes a storage foldable disc. The inner wall of the storage groove is connected to a positioning support rod through multiple connecting shafts. An auxiliary foldable rod connected to the positioning support rod is provided on the inner wall of the storage groove. The end of the positioning support rod is connected to a measuring positioning column through the foldable component. A measuring collar for measuring the thickness of the humus layer is sleeved on the measuring positioning column. By controlling the rotation control ring set on the sampling sleeve, the wire cutting tube is driven to rotate, which drives the wire cutting tube and the cutting metal wire at the wire end to rotate around the wire end as the center. During the rotation, the cutting metal wire cuts the soil at a predetermined depth, realizing the cutting of soil at different soil layers and easily achieving the effect of sampling samples at different soil depths.

[0004] When sampling paddy field soil, the weight or volume of soil samples collected at each sampling point should be consistent. Since paddy field soil is soft or clayey, the frictional force on the sampler cylinder wall is uneven, which may cause the sampler to deviate from the ground and lose its verticality, causing soil layer disturbance, resulting in soil layer structure damage or sample mixing. This leads to differences in the ratio of upper and lower layers of the sample, reducing the representativeness of the sample and the accuracy of the test results. Furthermore, when the soil sampling is subjected to uneven force, soil samples from different depths may be mixed or lost, destroying the vertical distribution characteristics and affecting the judgment of soil stratification and pollution migration. Summary of the Invention

[0005] The purpose of this invention is to provide a batch soil sampling device and method for large-scale rice cultivation, in order to solve the problems that it is not convenient to keep the sampler in a vertical state during sampling, which causes soil layer disturbance, and that uneven soil sampling force may lead to mixing or loss of soil samples from different depths, affecting the judgment of soil stratification and pollution migration.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a batch soil sampling device for large-scale rice cultivation, comprising a base plate and four support rods fixedly installed on the top of the base plate, wherein the top ends of the four support rods are fixedly connected to the same top plate; Also includes: Two sampling components are provided at the bottom of the top plate, and leveling components are symmetrically provided on both sides of the bottom plate; The sampling assembly includes an unfolding unit and a striking unit. The unfolding unit includes a servo motor fixedly installed on the top of the top plate. The output end of the servo motor passes through the top plate and is fixedly connected to a top plate. An adjusting rod is slidably installed on the bottom of the top plate, and a sampling cylinder is fixedly connected to the bottom of the adjusting rod. The striking unit includes a horizontal plate fixedly installed on the top of the base plate, a trapezoidal plate slidably connected inside the horizontal plate, and a sliding plate and a striking plate fixedly installed at the bottom of the trapezoidal plate.

[0007] Preferably, the bottom of the top plate is fixedly connected to two upper rods, and the outer sides of the two upper rods are slidably connected to the same movable disk. The bottom of the movable disk is fixedly connected to an adjusting rod. The bottom plate has two threaded grooves inside. The outer side of the sampling cylinder is threaded and threaded to the threaded grooves. The middle of the outer side of the adjusting rod is fixedly connected to a disc. The adjusting rod has an installation groove inside. The outer side of the adjusting rod is slidably connected to a sliding sleeve. A spring is sleeved on the upper outer side of the adjusting rod. The top end of the spring is fixedly connected to the sliding sleeve, and the bottom end of the spring is fixedly connected to the disc. Positioning rods are symmetrically slidably installed on the outer side of the adjusting rod.

[0008] By adopting the above technical solution, it is easy to maintain the vertical and stable descent of the adjusting rod, facilitate vertical sampling, reduce damage to the soil structure and sample mixing during sampling, maintain the same ratio between the upper and lower layers during sampling, and ensure that the positioning rod and side rod are spirally deployed to maintain the uniformity of force during the descent and rotation sampling of the adjusting rod, thereby reducing soil mixing.

[0009] Preferably, the positioning rod is rotatably connected to the sliding sleeve, and the top of the disc is symmetrically provided with guide grooves, with no less than three guide grooves. The number of positioning rods is the same as the number of guide grooves. The end of the positioning rod away from the sliding sleeve is rotatably connected to a sliding seat, and the sliding seat is slidably connected to the guide groove. The side of the sliding seat away from the positioning rod is fixedly connected to a guide rod, and the guide rod is slidably connected to the disc.

[0010] By adopting the above technical solution, when the slide moves, it will also drive the guide rod to move. The guide rod will drive the side rod and the universal wheel to move. The universal wheel rolls against the top surface of the base plate, which makes it easier to maintain the vertical and stable descent of the adjusting rod.

[0011] Preferably, a ring is rotatably connected to the top of the base plate, a fixing rod is fixedly connected to the top of the ring, a guide ramp is fixedly connected to the top of the fixing rod, a groove is formed inside the disc, the guide ramp is slidably connected to the groove, the inclined surface of the guide ramp abuts against the slide seat, a side rod is vertically slidably connected to the side of the guide rod away from the disc, the top of the side rod is in contact with the bottom of the top plate, and a caster wheel is fixedly installed at the bottom of the side rod.

[0012] By adopting the above technical solution, the positioning rod and side rod are spirally unfolded, which maintains the uniformity of force when the adjusting rod descends and rotates for sampling, facilitating subsequent testing and judgment of the soil.

[0013] Preferably, a fixing ring is uniformly fixedly connected to the lower outer side of the adjusting rod, a connecting rod is fixedly connected to the top of the base plate, the horizontal plate is fixedly connected to the connecting rod, an inner groove is opened on the side of the horizontal plate near the adjusting rod, a second spring is fixedly connected inside the inner groove, and the trapezoidal plate is slidably connected to the inner groove.

[0014] By adopting the above technical solution, when the adjusting rod drives the fixed ring to rise, the fixed ring will squeeze the inclined surface of the trapezoidal plate. The sliding plate slides inside the bottom groove and drives the striking plate to move. When the fixed ring separates from the trapezoidal plate, the elastic force of the second spring drives the trapezoidal plate and the striking plate to slide back to their original positions. The striking plate strikes the fixed ring and transmits the force to the adjusting rod.

[0015] Preferably, the trapezoidal plate is fixedly connected to the second spring, the bottom of the horizontal plate is provided with a bottom groove, the sliding plate is slidably connected to the bottom groove, the trapezoidal plate is fixedly connected to the striking plate through the sliding plate, a cylinder is fixedly installed inside the mounting groove, and the telescopic end of the cylinder passes through the sampling cylinder and is fixedly connected to a push plate.

[0016] By adopting the above technical solution, during subsequent discharge, the cylinder extends and drives the pusher plate to move, and the pusher plate slowly pushes out the soil inside the sampling cylinder.

[0017] Preferably, the leveling component includes a screw rotatably mounted on the top of the base plate, a bubble level is fixedly mounted on both the front and back sides of the base plate, an adjusting sleeve is threaded onto the outer side of the screw, and a fixing plate is fixedly connected to the outer side of the base plate.

[0018] By adopting the above technical solution, the operator rotates the screws around the perimeter. The rotation of the screws causes the adjusting sleeve to descend, which in turn causes the connecting strip to descend, and the connecting strip causes the positioning pins to descend, keeping the positioning pins around the perimeter descending to the same height.

[0019] Preferably, a connecting strip is fixedly connected to the outer side of the adjusting sleeve, and a positioning pin is fixedly connected to the bottom of the connecting strip, and the positioning pin is slidably connected to the fixing plate.

[0020] By adopting the above technical solution, observe the display of the bubble level and keep the base plate horizontal to facilitate subsequent vertical sampling operations.

[0021] A method for using a batch soil sampling device for large-scale rice cultivation, comprising the following steps: Step 1: The operator rotates the screws around the perimeter to keep the positioning pins on all four sides lowered to the same height and the base plate placed horizontally. Then, the servo motors on both sides are started. The sampling cylinder will rotate downward in the threaded groove. The adjusting rod drives the moving disk to slide on the outside of the upper rod, so that the adjusting rod and the sampling cylinder spiral down. Step 2: As the disc descends, the inclined surface of the guide plate will press against one of the slides. The sliding sleeve drives the positioning rods and slides in other positions to descend and unfold. The guide rod drives the side rods and casters to move, which helps to maintain the vertical and stable descent of the adjusting rod and facilitates vertical sampling. Step 3: After sampling, the servo motor reverses, which drives the adjusting rod and sampling cylinder to rotate and rise, enabling the striking plate to strike the fixing ring and transmit the force to the adjusting rod. During subsequent discharge, the caster extends and drives the push plate to move. The push plate slowly pushes out the soil inside the sampling cylinder and collects it using the external collection box.

[0022] Compared with the prior art, the beneficial effects of the present invention are as follows: By setting up a sampling assembly, and utilizing the cooperation of components such as a disc, positioning rod, guide groove, and tapping plate, when rotating to sample the soil, the adjusting rod will drive the sampling cylinder and disc to descend. When the disc descends, it will drive the positioning rod to unfold, so that the positioning rod drives the side rods and casters around it to move synchronously. This facilitates the vertical and stable descent of the adjusting rod, making vertical sampling easier, reducing damage to the soil structure and sample mixing during sampling, maintaining the same ratio between upper and lower layers during sampling, and ensuring uniform force distribution during the descent and rotation of the adjusting rod for sampling. This reduces soil mixing and facilitates subsequent soil testing and judgment. This static pressure sampling method reduces sampling disturbance and offset. Furthermore, when the adjusting rod rises to discharge the sampled soil after sampling, it can assist in gently tapping the sampling cylinder, thus facilitating stable discharge of the soil sample. Specific details are as follows: By setting up the sampling components, the operator places the base plate at the soil sampling location in the paddy field and keeps it level using the leveling components. Then, the servo motors on both sides are activated. The servo motors drive the top plate and upper rod to rotate. The upper rod drives the moving plate, adjusting rod, and sampling cylinder to rotate. The sampling cylinder engages with the threaded groove, causing it to spiral downwards within the groove. The adjusting rod drives the moving plate to slide outside the upper rod, causing the adjusting rod and sampling cylinder to descend spirally. The adjusting rod also drives the disc and sliding sleeve to descend. The top of the guide ramp is located in the sliding groove, and the fixed rod and guide ramp can rotate with the disc. As the disc descends, the inclined surface of the guide ramp presses against one of the sliding blocks. The sliding block slides in the guide groove, and the sliding block drives the bottom end of the positioning rod to move. The top end of the positioning rod drives the sliding sleeve to descend, compressing the spring in the sliding sleeve. The sliding sleeve drives the positioning rods and sliding blocks in other positions to descend and unfold. The sliding blocks drive the guide rod to move, which in turn drives the side rods and casters to move. The casters roll against the top surface of the base plate, facilitating adjustment. The vertical descent of the rod facilitates vertical sampling, reducing damage to the soil structure and sample mixing during sampling. It maintains the same ratio between upper and lower layers during sampling. The positioning rod and side rod are spirally deployed, ensuring uniform force distribution during the descent and rotation of the adjusting rod for sampling, reducing soil contamination and facilitating subsequent soil testing and assessment. The sampling cylinder descends into the soil for sampling. After sampling, the servo motor reverses, causing the adjusting rod and sampling cylinder to rotate and rise. The adjusting rod drives the fixing ring to rise, which in turn presses against the inclined surface of the trapezoidal plate. The trapezoidal plate is compressed by the spring and moves the sliding plate. The sliding plate slides inside the bottom groove and moves the striking plate. When the fixing ring separates from the trapezoidal plate, the elastic force of the spring causes the trapezoidal plate and striking plate to slide back to their original positions. The striking plate strikes the fixing ring and transmits the force to the adjusting rod. During subsequent discharge, the cylinder extends, causing the push plate to move. The push plate slowly pushes out the soil inside the sampling cylinder, which can then be collected by the operator using an external collection box. Soil sampling can then be performed at different locations within the paddy field. By setting up the leveling component, the operator rotates the screws around the perimeter. The rotation of the screws causes the adjusting sleeve to descend, which in turn causes the connecting strip to descend. The connecting strip then causes the positioning pins to descend, ensuring that the positioning pins on all four sides descend to the same height. The operator observes the display of the bubble level to keep the base plate level, facilitating subsequent vertical sampling operations. There is also a gap between the base plate and the soil, which facilitates the placement of the collection box and the collection of soil from the sampling tube. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the first three-dimensional overall structure of the present invention; Figure 2 This is a schematic diagram of the second three-dimensional overall structure of the present invention; Figure 3 This is a schematic cross-sectional view of the top plate structure of the present invention; Figure 4 For the present invention Figure 3Enlarged structural diagram at point A in the middle; Figure 5 This is a schematic diagram of the side rod structure of the present invention; Figure 6 For the present invention Figure 5 Enlarged structural diagram at point B; Figure 7 This is a schematic diagram of the movable disk structure of the present invention; Figure 8 For the present invention Figure 7 Enlarged structural diagram at point C; Figure 9 This is a schematic cross-sectional view of the adjusting rod of the present invention; Figure 10 For the present invention Figure 9 Enlarged structural diagram at point D; Figure 11 This is a schematic diagram of the sampling cylinder structure of the present invention; Figure 12 For the present invention Figure 11 Enlarged structural diagram at point E; Figure 13 This is a schematic diagram of the top plate structure of the present invention; Figure 14 For the present invention Figure 13 Enlarged structural diagram at point F.

[0024] In the diagram: 1. Base plate; 2. Support rod; 3. Top plate; 4. Sampling assembly; 41. Servo motor; 42. Top plate; 43. Upper rod; 44. Moving plate; 45. Adjusting rod; 46. Sampling cylinder; 47. Threaded groove; 48. Disc; 49. Mounting groove; 410. Sliding sleeve; 411. Spring 1; 412. Positioning rod; 413. Guide groove; 414. Slide seat; 415. Guide rod; 416. Fixing rod; 417. Guide ramp; 418. 419. Slide rail; 420. Side rod; 421. Caster wheel; 422. Fixing ring; 423. Connecting rod; 424. Horizontal plate; 425. Inner groove; 426. Spring 2; 427. Trapezoidal plate; 428. Bottom groove; 429. Slide plate; 430. Striking plate; 431. Cylinder; 432. Push plate; 5. Leveling assembly; 51. Bubble level; 52. Screw; 53. Adjusting sleeve; 54. Fixing plate; 55. Connecting strip; 56. Positioning pin. Detailed Implementation

[0025] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0026] Please see Figure 1 - Figure 3 The present invention provides a technical solution: a batch soil sampling device for large-scale rice planting, comprising a base plate 1 and four support rods 2 fixedly installed on the top of the base plate 1, the top ends of the four support rods 2 being fixedly connected to the same top plate 3.

[0027] like Figure 1 and Figure 3 - Figure 12 As shown, two sampling components 4 are provided at the bottom of the top plate 3 to facilitate the simultaneous sampling of two soil samples. The sampling component 4 includes an unfolding unit and a tapping unit. The unfolding unit includes a servo motor 41 fixedly installed on the top of the top plate 3. The output end of the servo motor 41 passes through the top plate 3 and is fixedly connected to a top plate 42. An adjusting rod 45 is slidably installed at the bottom of the top plate 42. A sampling cylinder 46 is fixedly connected to the bottom of the adjusting rod 45.

[0028] Two upper rods 43 are fixedly connected to the bottom of the top plate 42. The same movable disk 44 is slidably connected to the outer side of the two upper rods 43. The bottom of the movable disk 44 is fixedly connected to the adjusting rod 45. Two threaded grooves 47 are opened inside the base plate 1. The outer side of the sampling cylinder 46 is provided with threads. The sampling cylinder 46 is threadedly connected to the threaded grooves 47. With the rotation of the servo motor 41, it is easy to realize the downward rotation of the adjusting rod 45 and the sampling cylinder 46.

[0029] A disc 48 is fixedly connected to the middle of the outer side of the adjusting rod 45. An installation groove 49 is provided inside the adjusting rod 45. A sliding sleeve 410 is slidably connected to the outer side of the adjusting rod 45. A spring 411 is sleeved on the upper outer side of the adjusting rod 45. The top end of the spring 411 is fixedly connected to the sliding sleeve 410, and the bottom end of the spring 411 is fixedly connected to the disc 48. A positioning rod 412 is symmetrically slidably installed on the outer side of the adjusting rod 45.

[0030] The positioning rod 412 is rotatably connected to the sliding sleeve 410. The top of the disc 48 is symmetrically provided with guide grooves 413, and there are no fewer than three guide grooves 413. The number of positioning rods 412 is the same as the number of guide grooves 413. The end of the positioning rod 412 away from the sliding sleeve 410 is rotatably connected to the sliding seat 414. The sliding seat 414 is slidably connected to the guide groove 413. The side of the sliding seat 414 away from the positioning rod 412 is fixedly connected to the guide rod 415. The guide rod 415 is slidably connected to the disc 48. The guide rod 415 is used to drive the sliding of the side rod 419.

[0031] A ring is rotatably connected to the top of the base plate 1. A fixed rod 416 is fixedly connected to the top of the ring. A guide ramp 417 is fixedly connected to the top of the fixed rod 416. A groove 418 is provided inside the disc 48. The guide ramp 417 is slidably connected to the groove 418. The inclined surface of the guide ramp 417 abuts against the slide block 414. A side rod 419 is vertically slidably connected to the side of the guide rod 415 away from the disc 48. The top of the side rod 419 is in contact with the bottom of the top plate 3. A universal wheel 420 is fixedly installed at the bottom of the side rod 419. When the adjusting rod 45 is lowered, the side rod 419 will spiral outward. The universal wheel 420 assists the side rod 419 to move smoothly.

[0032] The striking unit includes a horizontal plate 423 fixedly installed on the top of the base plate 1, a trapezoidal plate 426 slidably connected inside the horizontal plate 423, and a sliding plate 428 and a striking plate 429 fixedly installed on the bottom of the trapezoidal plate 426.

[0033] A fixing ring 421 is evenly fixedly connected to the lower outer side of the adjusting rod 45. A connecting rod 422 is fixedly connected to the top of the base plate 1. A horizontal plate 423 is fixedly connected to the connecting rod 422. An inner groove 424 is opened on the side of the horizontal plate 423 near the adjusting rod 45. A second spring 425 is fixedly connected inside the inner groove 424. A trapezoidal plate 426 is slidably connected to the inner groove 424. Damping blocks are set at both ends of the first spring 411 and the second spring 425 to reduce their reciprocating vibration and maintain stable telescopic use.

[0034] The trapezoidal plate 426 is fixedly connected to the spring 425. The bottom of the horizontal plate 423 is provided with a bottom groove 427. The sliding plate 428 is slidably connected to the bottom groove 427. The trapezoidal plate 426 is fixedly connected to the striking plate 429 through the sliding plate 428. The cylinder 430 is fixedly installed inside the mounting groove 49. The telescopic end of the cylinder 430 passes through the sampling cylinder 46 and is fixedly connected to the push plate 431, which facilitates the discharge and collection of the sampled soil in the sampling cylinder 46.

[0035] Example 1: As Figure 3 - Figure 12 As shown, the operator places the base plate 1 at the soil sampling position in the paddy field and keeps the base plate 1 level and fixed by adjusting the leveling component 5. Then, the servo motors 41 on both sides are started. The servo motors 41 drive the top plate 42 and the upper rod 43 to rotate. The upper rod 43 drives the moving plate 44, the adjusting rod 45 and the sampling cylinder 46 to rotate. The sampling cylinder 46 cooperates with the threaded groove 47, so that the sampling cylinder 46 will spiral downward in the threaded groove 47. The adjusting rod 45 drives the moving plate 44 to slide on the outside of the upper rod 43, so that the adjusting rod 45 and the sampling cylinder 46 spiral down.

[0036] Furthermore, the adjusting rod 45 will also drive the disc 48 and the sliding sleeve 410 to descend. The top of the guide ramp 417 is located in the slide groove 418, and the fixing rod 416 and the guide ramp 417 can rotate with the disc 48. When the disc 48 descends, the inclined surface of the guide ramp 417 will press one of the slide blocks 414. The slide block 414 slides in the guide groove 413, and the slide block 414 drives the bottom end of the positioning rod 412 to move. The top end of the positioning rod 412 drives the sliding sleeve 410 to descend. The sliding sleeve 410 compresses the spring 411. The sliding sleeve 410 drives the positioning rods 412 and the slide blocks 414 in other positions to descend and unfold.

[0037] The sliding block 414 drives the guide rod 415 to move, and the guide rod 415 drives the side rod 419 and the universal wheel 420 to move. The universal wheel 420 rolls against the top surface of the base plate 1, which facilitates the vertical and stable descent of the adjusting rod 45, making it convenient for vertical sampling, reducing damage to the soil structure and sample mixing during sampling, and maintaining the same ratio between the upper and lower layers during sampling. In addition, the positioning rod 412 and the side rod 419 are spirally unfolded, which maintains the uniformity of force when the adjusting rod 45 descends and rotates for sampling, reduces soil mixing, and facilitates subsequent soil testing and judgment. The sampling tube 46 descends into the soil to take a sample.

[0038] After sampling, the servo motor 41 reverses, which drives the adjusting rod 45 and the sampling cylinder 46 to rotate and rise. The adjusting rod 45 drives the fixing ring 421 to rise, and the fixing ring 421 will squeeze the inclined surface of the trapezoidal plate 426. The trapezoidal plate 426 is squeezed and compresses the second spring 425, which drives the slide plate 428 to move. The slide plate 428 slides inside the bottom groove 427 and drives the striking plate 429 to move. When the fixing ring 421 separates from the trapezoidal plate 426, the elastic force of the second spring 425 drives the trapezoidal plate 426 and the striking plate 429 to slide and reset. The striking plate 429 strikes the fixing ring 421 and transmits the force to the adjusting rod 45.

[0039] During subsequent discharge, the cylinder 430 extends to move the push plate 431, which slowly pushes out the soil inside the sampling cylinder 46. The operator can then collect the soil using an external collection box. Soil sampling can then be performed at different locations within the paddy field.

[0040] like Figure 1 and Figure 13 - Figure 14 As shown, leveling components 5 are symmetrically arranged on both sides of the base plate 1. The leveling components 5 include a screw 52 rotatably mounted on the top of the base plate 1. A bubble level 51 is fixedly mounted on one side of the front and back of the base plate 1. An adjusting sleeve 53 is threadedly connected to the outside of the screw 52. A fixing plate 54 is fixedly connected to the outside of the base plate 1.

[0041] A connecting strip 55 is fixedly connected to the outer side of the adjusting sleeve 53, and a positioning pin 56 is fixedly connected to the bottom of the connecting strip 55. The positioning pin 56 is slidably connected to the fixing plate 54.

[0042] Example 2: Figure 13 - Figure 14 As shown, the operator rotates the screws 52 around the perimeter. The rotation of the screws 52 causes the adjusting sleeve 53 to descend, which in turn causes the connecting strip 55 to descend. The connecting strip 55 then causes the positioning pins 56 to descend, keeping the positioning pins 56 around the perimeter at the same height. The operator observes the display of the bubble level 51 to keep the base plate 1 horizontal, which facilitates subsequent vertical sampling operations. There is also a gap between the base plate 1 and the soil, which facilitates the placement of the collection box and the collection of soil from the sampling tube 46.

[0043] Working principle: When using this device, firstly, as... Figure 1 - Figure 14 As shown, the operator rotates the screws 52 around the perimeter to keep the positioning pins 56 descending to the same height and the base plate 1 horizontal. Then, the servo motors 41 on both sides are started, and the sampling cylinder 46 will spiral downward in the threaded groove 47. The adjusting rod 45 drives the moving disk 44 to slide on the outside of the upper rod 43, so that the adjusting rod 45 and the sampling cylinder 46 spiral down. The fixing rod 416 and the guide ramp 417 can rotate with the disk 48. When the disk 48 descends, the inclined surface of the guide ramp 417 will press one of the slide blocks 414. The sliding sleeve 410 drives the positioning rods 412 and slide blocks 414 in other positions to descend and unfold. The slide block 414 drives the guide rod 415 to move. The guide rod 415 drives the side rod 419 and the universal wheel 420 to move. The universal wheel 420 rolls against the top surface of the base plate 1, which facilitates rolling. The adjusting rod 45 is kept vertically and stably lowered to facilitate vertical sampling. It maintains uniform force during the descent and rotation of the adjusting rod 45 for sampling, reducing soil contamination and facilitating subsequent soil testing and assessment. The sampling cylinder 46 descends into the soil for sampling. After sampling, the servo motor 41 reverses, causing the adjusting rod 45 and the sampling cylinder 46 to rotate and rise. The adjusting rod 45 drives the fixing ring 421 to rise, and the fixing ring 421 presses against the inclined surface of the trapezoidal plate 426, enabling the striking plate 429 to strike the fixing ring 421, which is then transmitted to the adjusting rod 45. During subsequent discharge, the cylinder 430 extends, causing the push plate 431 to move. The push plate 431 slowly pushes out the soil inside the sampling cylinder 46, which can then be collected by the operator using an external collection box. Subsequently, soil sampling can be performed at different locations within the paddy field.

[0044] The contents not described in detail in this specification are existing technologies known to those skilled in the art.

[0045] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A batch soil sampling device for large-scale rice planting, comprising a base plate (1) and four support rods (2) fixedly installed on the top of the base plate (1), wherein the top ends of the four support rods (2) are fixedly connected to the same top plate (3). characterized in that Also includes: Two sampling components (4) are provided at the bottom of the top plate (3), and leveling components (5) are symmetrically provided on both sides of the bottom plate (1). The sampling component (4) includes an unfolding unit and a striking unit. The unfolding unit includes a servo motor (41) fixedly installed on the top of the top plate (3). The output end of the servo motor (41) passes through the top plate (3) and is fixedly connected to a top plate (42). An adjusting rod (45) is slidably installed on the bottom of the top plate (42). A sampling cylinder (46) is fixedly connected to the bottom of the adjusting rod (45). The striking unit includes a horizontal plate (423) fixedly installed on the top of the base plate (1), a trapezoidal plate (426) is slidably connected inside the horizontal plate (423), and a sliding plate (428) and a striking plate (429) are fixedly installed on the bottom of the trapezoidal plate (426).

2. The batch soil sampling device for large-scale rice cultivation according to claim 1, characterized in that: The bottom of the top plate (42) is fixedly connected to two upper rods (43), and the outer sides of the two upper rods (43) are slidably connected to the same moving disk (44). The bottom of the moving disk (44) is fixedly connected to the adjusting rod (45). The bottom plate (1) has two threaded grooves (47) inside. The outer side of the sampling cylinder (46) is provided with threads. The sampling cylinder (46) is threadedly connected to the threaded grooves (47). The middle of the outer side of the adjusting rod (45) is fixedly connected to a disc (48). The inside of the adjusting rod (45) is provided with an installation groove (49). The outer side of the adjusting rod (45) is slidably connected to a sliding sleeve (410). The upper part of the outer side of the adjusting rod (45) is sleeved with a spring (411). The top of the spring (411) is fixedly connected to the sliding sleeve (410). The bottom of the spring (411) is fixedly connected to the disc (48). The outer side of the adjusting rod (45) is symmetrically slidably installed with positioning rods (412).

3. The batch soil sampling device for large-scale rice cultivation according to claim 2, characterized in that: The positioning rod (412) is rotatably connected to the sliding sleeve (410). The top of the disc (48) is symmetrically provided with guide grooves (413). There are no fewer than three guide grooves (413). The number of positioning rods (412) is the same as the number of guide grooves (413). The end of the positioning rod (412) away from the sliding sleeve (410) is rotatably connected to a sliding seat (414). The sliding seat (414) is slidably connected to the guide grooves (413). The side of the sliding seat (414) away from the positioning rod (412) is fixedly connected to a guide rod (415). The guide rod (415) is slidably connected to the disc (48).

4. A batch soil sampling device for large-scale rice cultivation according to claim 3, characterized in that: The top of the base plate (1) is rotatably connected to a ring, the top of the ring is fixedly connected to a fixing rod (416), the top of the fixing rod (416) is fixedly connected to a guide ramp (417), the inside of the disc (48) is provided with a sliding groove (418), the guide ramp (417) is slidably connected to the sliding groove (418), the inclined surface of the guide ramp (417) abuts against the slide block (414), the side of the guide rod (415) away from the disc (48) is vertically slidably connected to a side rod (419), the top of the side rod (419) is in contact with the bottom of the top plate (3), and the bottom of the side rod (419) is fixedly installed with a caster wheel (420).

5. A batch soil sampling device for large-scale rice cultivation according to claim 4, characterized in that: A fixing ring (421) is evenly fixedly connected to the lower outer side of the adjusting rod (45), a connecting rod (422) is fixedly connected to the top of the base plate (1), the horizontal plate (423) is fixedly connected to the connecting rod (422), an inner groove (424) is opened on the side of the horizontal plate (423) near the adjusting rod (45), a spring (425) is fixedly connected inside the inner groove (424), and the trapezoidal plate (426) is slidably connected to the inner groove (424).

6. A batch soil sampling device for large-scale rice cultivation according to claim 5, characterized in that: The trapezoidal plate (426) is fixedly connected to the second spring (425). The bottom of the horizontal plate (423) is provided with a bottom groove (427). The sliding plate (428) is slidably connected to the bottom groove (427). The trapezoidal plate (426) is fixedly connected to the striking plate (429) through the sliding plate (428). A cylinder (430) is fixedly installed inside the mounting groove (49). The telescopic end of the cylinder (430) passes through the sampling cylinder (46) and is fixedly connected to a push plate (431).

7. A batch soil sampling device for large-scale rice cultivation according to claim 6, characterized in that: The leveling component (5) includes a screw (52) rotatably mounted on the top of the base plate (1). A bubble level (51) is fixedly mounted on both the front and back sides of the base plate (1). An adjusting sleeve (53) is threadedly connected to the outside of the screw (52). A fixing plate (54) is fixedly connected to the outside of the base plate (1).

8. A batch soil sampling device for large-scale rice cultivation according to claim 7, characterized in that: A connecting strip (55) is fixedly connected to the outside of the adjusting sleeve (53), and a positioning pin (56) is fixedly connected to the bottom of the connecting strip (55). The positioning pin (56) is slidably connected to the fixing plate (54).

9. A method of using a batch soil sampling device for large-scale rice cultivation, characterized in that, The batch soil sampling device for large-scale rice cultivation as described in claim 8 is used in the following steps: Step 1: The operator rotates the screws (52) around the perimeter to keep the positioning pins (56) around the perimeter lowered to the same height and the base plate (1) is placed horizontally. Then, the servo motors (41) on both sides are started to work. The sampling cylinder (46) will be screwed down in the threaded groove (47). The adjusting rod (45) drives the moving disk (44) to slide on the outside of the upper rod (43), so that the adjusting rod (45) and the sampling cylinder (46) spiral down. Step 2: When the disc (48) descends, the inclined surface of the guide plate (417) will press one of the slides (414), and the sliding sleeve (410) will drive the positioning rods (412) and slides (414) in other positions to descend and unfold. The guide rod (415) will drive the side rod (419) and the caster wheel (420) to move, so as to keep the adjustment rod (45) vertically and stably descending, and facilitate vertical sampling. Step 3: After sampling, the servo motor (41) reverses again, which will drive the adjusting rod (45) and the sampling cylinder (46) to rotate and rise, realizing the striking plate (429) striking the fixing ring (421) and transmitting it to the adjusting rod (45). During subsequent discharge, the cylinder (430) extends and drives the push plate (431) to move. The push plate (431) slowly pushes out the soil inside the sampling cylinder (46) and collects it using an external collection box.

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