Crop root sampling device

Abstract

The invention discloses a crop root sampling device, and belongs to the related field of agricultural scientific research technology, the crop root sampling device comprises a movable base, a lower fixing frame and an upper fixing frame, the lower fixing frame is fixedly mounted on the outer surface of the upper end of the movable base, and the upper fixing frame is fixedly mounted on the outer surface of the upper end of the lower fixing frame; a rod body is movably installed on the inner side of the lower fixing frame, a sampling barrel is installed on the lower portion of the rod body, two sets of lifting jacks used in cooperation with the rod body are arranged on the outer surface of the upper end of the lower fixing frame, a jacking plate is movably installed between the two sets of lifting jacks, the rod body is movably connected to the middle of the jacking plate in a sleeving mode, and a jacking head is arranged at the top end of the rod body. A hammer head for hammering the rod body is movably mounted on the inner side of the upper fixing frame; according to the crop root sampling device, a motor automation structure can be matched with a hydraulic jacking structure, so that insertion and extraction operations during crop root sampling operation are completed, a manual mode is replaced to complete root sampling, and the sampling efficiency is improved.

Description

Technical Field

[0001] The present invention belongs to the field related to agricultural scientific research technologies, and more specifically, it is a device for sampling crop roots. Background Art

[0002] Wheat is a deep-rooted crop. The main soil type in the dry-crop wheat planting area in northern Anhui is sandy black soil, which is a clay type. After the soil dries, it becomes extremely hard, making it difficult to collect roots. During the research process of wheat, generally, manual methods are used to take roots, with low efficiency and high difficulty.

[0003] The patent document with the publication number CN104833543B records a root-taking device, which includes a soil-taking cylinder, a drill rod, a force-applying handle, and an inner core rod. The bottom end of the soil-taking cylinder is an open structure; the drill rod is tubular, and its bottom end is connected to the top end of the soil-taking cylinder and is communicated with the inside of the soil-taking cylinder; the force-applying handle is connected to the top end of the drill rod, and a through hole corresponding to the axial center position of the drill rod is provided on the force-applying handle; the top end of the inner core rod sequentially passes through the soil-taking cylinder, the drill rod, and the through hole, and a soil-pushing piece is provided at the bottom end of the inner core rod. The shape and size of the soil-pushing piece are adapted to the shape and size of the soil-taking cylinder. When taking roots with this device, the drilling depth can be controlled, and the roots at the target depth can be accurately obtained. Moreover, this device has a simple structure and is easy to operate.

[0004] The above root-taking device has certain deficiencies during the operation of sampling crop roots. When using the above root-taking device, it is inserted into the soil by manual hammering for root-taking operation. However, sandy black soil is a clay type, and it becomes extremely hard after the soil dries, which is not conducive to the insertion of the root-taking device. Moreover, during the root-pressing process, the root-taking device needs to be pulled out manually, and the entire root-taking process requires a large amount of manpower, reducing its working efficiency; secondly, the traditional root-taking device does not have an auxiliary discharging structure. During the sampling process of crop roots, it is necessary to manually discharge the taken root samples, which is likely to damage the sample root hairs during the sampling process, making the sample unable to be normally used and reducing its sampling effect; secondly, the root depths of different types of crops are different, and the traditional device does not have an auxiliary limiting structure and cannot be flexibly adapted to the root structures of different types of crops, with a single function. Summary of the Invention

[0005] The purpose of the present invention is to provide a device for sampling crop roots, which can solve the existing problems.

[0006] The problems solved by the present invention are:

[0007] 1. When the traditional root-taking device is in use, it is inserted into the soil by manual hammering for root-taking operations. However, the lime concretion black soil is of the clay type, and it becomes extremely hard after drought, which is not conducive to the insertion of the root-taking device. Moreover, during the root extraction process, it is necessary for manual labor to pull out the root-taking device. The entire root-taking process requires a large amount of manpower, reducing its working efficiency. Secondly, the traditional root-taking device does not have an auxiliary discharging structure. During the process of sampling the roots of crops, it is necessary for manual labor to discharge the extracted root samples, which is likely to damage the root hairs of the samples during sampling, making the samples unable to be used properly and reducing the sampling effect. Secondly, the root depths of different types of crops are different. The traditional device does not have an auxiliary limiting structure and cannot be flexibly applied to the root structures of different types of crops, with single functionality.

[0008] The object of the present invention can be achieved by the following technical solutions:

[0009] A root sampling device for crops, comprising a moving base, a lower fixing frame, and an upper fixing frame. The lower fixing frame is fixedly installed on the upper outer surface of the moving base, and the upper fixing frame is fixedly installed on the upper outer surface of the lower fixing frame. A rod body is movably installed inside the lower fixing frame, and a sampling cylinder is installed at the lower part of the rod body. Two lifters for cooperating with the rod body are arranged on the upper outer surface of the lower fixing frame, and a jacking plate is movably installed between the two lifters. The rod body is movably sleeved in the middle of the jacking plate, and a top head is arranged at the top of the rod body. A hammer head for hammering the rod body is movably installed inside the upper fixing frame. A positioning retaining ring is movably sleeved on the outer surface of the sampling cylinder.

[0010] As a further technical solution of the present invention, a crankshaft is arranged above the hammer head. A driving rod is movably installed in the middle of the crankshaft, and the lower end of the driving rod is connected to the hammer head through an elastic ejector rod. When performing the root sampling operation of crops, first remove the upper wheat seedlings and retain the root structure of the wheat in the soil. Push the moving base to move the sampling cylinder directly above the wheat roots. Start the motor, so that the motor drives the crankshaft to rotate. The crankshaft drives the driving rod to reciprocate. One end of the driving rod is movably docked with the elastic ejector rod. When the driving rod moves, one end of the driving rod pulls the elastic ejector rod. Since the hammer head passes through the limiting sleeve, the limiting sleeve restricts the moving direction of the hammer head, so that the hammer head moves vertically back and forth, causing the hammer head to repeatedly hammer the top head structure at the upper end of the rod body. Through the setting of the elastic ejector rod, elastic adjustment can be performed when the hammer head hammers, so that after the hammer head hammers multiple times, the sampling cylinder is completely inserted into the soil. The rod body applies a downward pressure to the sampling cylinder to insert the sampling cylinder into the corresponding depth of the soil, completing the root sampling operation of the wheat.

[0011] As a further technical solution of the present invention, the drive rod and the elastic ejector rod are movably connected. A limit sleeve is movably sleeved on the outer surface of the hammer head. One side of the crankshaft is driven by an electric motor. The limit sleeve can be used to limit the moving direction of the hammer head, and the electric motor can be used as a power source to drive the crankshaft to rotate.

[0012] As a further technical solution of the present invention, the lifter includes a jack and a limit clamping seat. The jack is installed inside the limit clamping seat. Both ends of the lifting plate are placed inside two limit clamping seats, and the lifting plate is located above the jack. After the sampling cylinder is inserted into the soil, the sampling cylinder needs to be pulled out upward to complete the root sampling operation. The user presses the pressure rod, so that the two jacks lift the lifting plate upward. Because the diameter of the top head of the rod body is larger than the diameter of the circular notch of the lifting plate, when the lifting plate moves upward, the rod body is driven to move upward by the top head, so as to pull out the whole sampling cylinder after root sampling upward.

[0013] As a further technical solution of the present invention, a pressure rod is installed on one side of the jack. The jack and the pressure rod are movably connected through a rotating chuck. The rotating chuck can be used to flexibly adjust the angle of the pressure rod. When the device moves, the pressure rod can be bent and stored.

[0014] As a further technical solution of the present invention, a rectangular notch is provided in the middle of the moving base, and a limit plate for cooperating with the rod body is fixedly installed in the rectangular notch of the moving base. A draw-out drawer is movably installed at the bottom of the moving base. The rod body passes through the limit plate. When the rod body is used, the moving direction of the rod body can be limited by the limit plate, so that the rod body moves vertically up and down. The rectangular notch can facilitate the user to observe the position of the sampling cylinder, so that the sampling cylinder is accurately docked on the root of the crop. Secondly, through the setting of the draw-out drawer, it can be used to collect the collected crop root samples.

[0015] As a further technical solution of the present invention, the moving base and the draw-out drawer are movably connected through a moving sliding frame. The moving sliding frame is sleeved on the outside of the draw-out drawer. Both sides of the moving sliding frame are driven by a horizontal push rod. A battery pack is provided at the upper end of the moving base. After the sampling cylinder completes the crop root sampling operation, the moving sliding frame can be driven by the horizontal push rod to translate the draw-out drawer installed in the moving sliding frame to the lower part of the sampling cylinder, which is convenient for the sampling cylinder to discharge materials. Secondly, after the draw-out drawer is full, the draw-out drawer can be pulled out from the moving sliding frame, which is convenient for sample transfer.

[0016] As a further technical solution of the present invention, a blanking plate is fixedly installed at the upper position of one end of the drawer, and a blanking groove is provided in the middle of the blanking plate. The diameter of the blanking groove is smaller than the outer diameter of the sampling cylinder. Reinforcing bars are provided at both ends of the blanking plate. When the sampling cylinder performs the sample discharging operation, by rotating the sampling cylinder, the limit clamping head is docked with the notch at the upper end of the sampling cylinder. At this time, the circular push plate is in a movable state. When using the hammer to strike the rod body, during the initial striking, the lower end of the sampling cylinder is docked with the blanking groove. Because the diameter of the blanking groove is smaller than the outer diameter of the sampling cylinder, the sampling cylinder is stuck on the blanking groove. When striking again, the rod body impacts the circular push plate, so that the circular push plate pushes out the crop root sample outward, and the sample is pushed out from the inside of the sampling cylinder and thus falls into the inside of the drawer.

[0017] As a further technical solution of the present invention, a circular push plate is fixedly installed on the outer surface of the lower end of the rod body, and a limit clamping head is fixedly installed on the outer surface of the rod body above the circular push plate. A notch for cooperating with the limit clamping head is provided at the upper end of the sampling cylinder. The state of the circular push plate can be adjusted by using the limit clamping head. When the limit clamping head and the notch are misaligned, the circular push plate is in a fixed state. When the limit clamping head and the notch are docked, the rod body can drive the circular push plate to move to complete the sample discharging operation.

[0018] As a further technical solution of the present invention, a positioning retaining ring is installed on the outer surface of the sampling cylinder by means of threads, and side rotation clamping strips are movably installed on both sides of the positioning retaining ring. When the sampling cylinder is inserted into the soil for sample sampling operation, the positioning retaining ring can be used to limit the insertion depth of the sampling cylinder. By rotating the positioning retaining ring, its position on the sampling cylinder can be adjusted by means of the thread structure. When the positioning retaining ring contacts the soil surface, the sampling cylinder cannot penetrate further, so that the sampling cylinder can be flexibly applied to different types of root sampling operations. The setting of the side rotation clamping strips can facilitate the rotation adjustment of the positioning retaining ring.

[0019] The beneficial effects of the present invention:

[0020] 1. By setting the hoist and the driving rod, when the crop root sampling device is used, the insertion and extraction operations during the crop root sampling operation can be completed through the motor automation structure and the hydraulic lifting structure, replacing the manual method to complete the root sampling and improving the sampling efficiency;

[0021] During operation, when taking samples from the roots of crops, first remove the upper wheat seedlings and keep the root structure in the soil. Push the moving base to move the sampling cylinder directly above the wheat roots. Start the motor, which drives the crankshaft to rotate. The crankshaft drives the driving rod to move reciprocally. One end of the driving rod is movably docked with the elastic ejector rod. When the driving rod moves, it pulls one end of the elastic ejector rod. Since the hammer head passes through the limit sleeve, the limit sleeve restricts the moving direction of the hammer head, causing the hammer head to move vertically in a reciprocating motion. The hammer head repeatedly strikes the top head structure at the upper end of the rod body. Through the setting of the elastic ejector rod, elastic adjustment can be performed when the hammer head strikes. After the hammer head strikes multiple times, the sampling cylinder is completely inserted into the soil. By applying a downward pressure to the sampling cylinder through the rod body, the sampling cylinder is inserted into the corresponding depth of the soil to complete the wheat root sampling operation. When the sampling cylinder is inserted into the soil, it needs to be pulled out upward to complete the root taking operation. The user presses the pressure rod, causing the two jacks to lift the lifting plate upward. Since the diameter of the top head of the rod body is larger than the diameter of the circular notch of the lifting plate, when the lifting plate moves upward, it drives the rod body to move upward through the top head, thereby pulling out the entire sampling cylinder after root taking upward, automatically completing the plugging and unplugging operation of root sampling.

[0022] 2. By setting the stripping plate and the circular push plate, when using this crop root sampling device, the use of its root taking structure can be optimized, the discharging operation of the root samples can be automatically completed, sample damage can be reduced, and its use effect can be improved.

[0023] During use, through the setting of the drawer, it can be used to collect the collected crop root samples. After the sampling cylinder completes the crop root sampling operation, by driving the moving sliding frame through the horizontal push rod, the drawer installed in the moving sliding frame can be translated to the lower part of the sampling cylinder, facilitating the discharging operation of the sampling cylinder. Secondly, after the drawer is full, pulling the drawer can pull the drawer out of the moving sliding frame, facilitating the transfer of samples. When the sampling cylinder performs the sample discharging operation, by rotating the sampling cylinder, the limit chuck is docked with the notch at the upper end of the sampling cylinder. At this time, the circular push plate is in an active state. When using the hammer head to strike the rod body, during the initial strike, the lower end of the sampling cylinder is docked with the stripping groove. Since the diameter of the stripping groove is smaller than the outer diameter of the sampling cylinder, the sampling cylinder is stuck on the stripping groove. When striking again, the rod body impacts the circular push plate, causing the circular push plate to push out the crop root sample outward, making the sample pop out from the inside of the sampling cylinder and thus fall into the inside of the drawer.

[0024] 3. By setting the positioning retaining ring, when using this crop root sampling device, the use of the sampling cylinder can be optimized, the use depth of the sampling cylinder can be accurately controlled, and it can be applied to different types of crops.

[0025] During operation, when the sampling cylinder is inserted into the soil for sample sampling, the positioning retaining ring can be used to limit the insertion depth of the sampling cylinder. By rotating the positioning retaining ring, its position on the sampling cylinder can be adjusted using the threaded structure. When the positioning retaining ring contacts the soil surface, the sampling cylinder cannot penetrate further, enabling the sampling cylinder to be flexibly applicable to different types of root sampling operations. The setting of the side rotation clamping strip facilitates the rotational adjustment of the positioning retaining ring. Brief Description of the Drawings

[0026] The present invention will be further described below in conjunction with the accompanying drawings.

[0027] Figure 1 It is a schematic diagram of the overall structure of a crop root sampling device according to the present invention;

[0028] Figure 2 It is a schematic diagram of the overall structure of the hammer head in a crop root sampling device according to the present invention;

[0029] Figure 3 It is a schematic diagram of the overall structure of the drawer in a crop root sampling device according to the present invention;

[0030] Figure 4 It is a schematic diagram of the overall structure of the sampling cylinder in a crop root sampling device according to the present invention;

[0031] Figure 5 It is a schematic diagram of the overall structure of the circular push plate in a crop root sampling device according to the present invention;

[0032] Figure 6 It is a schematic diagram of the overall structure of the jack in a crop root sampling device according to the present invention;

[0033] Figure 7 It is a plan view structure diagram of the positioning retaining ring in a crop root sampling device according to the present invention;

[0034] Figure 8 It is a state change diagram of the sampling cylinder during use in a crop root sampling device according to the present invention.

[0035] In the figure: 1. Battery pack; 2. Mobile base; 3. Limiting plate; 4. Rod body; 5. Drawer; 6. Lower fixing frame; 7. Lifting plate; 8. Hammer head; 9. Motor; 10. Jack; 11. Upper fixing frame; 12. Driving rod; 13. Limiting sleeve; 14. Elastic ejector rod; 15. Moving sliding frame; 16. Transverse push rod; 17. Stripping plate; 18. Stripping groove; 19. Sampling cylinder; 20. Limiting chuck; 21. Positioning retaining ring; 22. Reinforcing strip; 23. Circular push plate; 24. Pressing rod; 25. Rotating chuck; 26. Jack; 27. Side rotation clamping strip; 28. Limiting clamping seat; 29. Crankshaft; 30. Top head. Detailed Embodiment

[0036] The technical solutions of the present invention will be clearly and completely described below in conjunction with the embodiments. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts belong to the protection scope of the present invention.

[0037] As Figure 1-8 shown, a crop root sampling device includes a moving base 2, a lower fixing frame 6 and an upper fixing frame 11. The lower fixing frame 6 is fixedly installed on the upper outer surface of the moving base 2, and the upper fixing frame 11 is fixedly installed on the upper outer surface of the lower fixing frame 6. A rod body 4 is movably installed inside the lower fixing frame 6. A sampling cylinder 19 is installed at the lower part of the rod body 4. Two lifting devices 10 for cooperating with the rod body 4 are arranged on the upper outer surface of the lower fixing frame 6. A lifting plate 7 is movably installed between the two lifting devices 10. The rod body 4 is movably sleeved at the middle position of the lifting plate 7, and a top head 30 is arranged at the top end of the rod body 4. A hammer head 8 for hammering the rod body 4 is movably installed inside the upper fixing frame 11. A positioning retaining ring 21 is movably sleeved on the outer surface of the sampling cylinder 19.

[0038] To solve the problem of automatic hammering during sampling, as Figure 2 shown, a crankshaft 29 is arranged above the hammer head 8. A driving rod 12 is movably installed at the middle of the crankshaft 29, and the lower end of the driving rod 12 is connected to the hammer head 8 through the elastic ejector rod 14. When performing the crop root sampling operation, first remove the wheat seedlings above the wheat, and retain the root structure in the soil of the wheat. Push the moving base 2 to move the sampling cylinder 19 directly above the wheat root. Start the motor 9 to drive the crankshaft 29 to rotate. The driving rod 12 is driven by the crankshaft 29 to reciprocate. One end of the driving rod 12 is movably docked with the elastic ejector rod 14. When the driving rod 12 moves, one end of the driving rod 12 pulls the elastic ejector rod 14. Since the hammer head 8 passes through the limit sleeve 13, the limit sleeve 13 restricts the moving direction of the hammer head 8, so that the hammer head 8 moves vertically back and forth, and the hammer head 8 repeatedly hammers the top head 30 structure at the upper end of the rod body 4. Through the setting of the elastic ejector rod 14, elastic adjustment can be performed when the hammer head 8 hammers. After the hammer head 8 hammers multiple times, the sampling cylinder 19 is completely inserted into the soil. A downward pressure is applied to the sampling cylinder 19 through the rod body 4 to insert the sampling cylinder 19 into the corresponding depth of the soil, and the wheat root sampling operation is completed.

[0039] The driving rod 12 and the elastic ejector rod 14 are movably connected. A limit sleeve 13 is movably sleeved on the outer surface of the hammer head 8. One side of the crankshaft 29 is driven by the motor 9. The limit sleeve 13 can be used to restrict the moving direction of the hammer head 8, and the motor 9 can be used as a power source to drive the crankshaft 29 to rotate.

[0040] To solve the problem of pulling out during the sampling process, such as Figure 6 As shown, the hoist 10 includes a jack 26 and a limit socket 28. The jack 26 is installed inside the limit socket 28. Both ends of the lifting plate 7 are placed inside two groups of limit sockets 28, and the lifting plate 7 is located above the jack 26. After the sampling cylinder 19 is inserted into the soil, the sampling cylinder 19 needs to be pulled out upward to complete the root sampling operation. The user presses the lever 24, causing the two jacks 26 to lift the lifting plate 7 upward. Since the diameter of the head 30 of the rod body 4 is larger than the diameter of the circular notch of the lifting plate 7, when the lifting plate 7 moves upward, it drives the rod body 4 to move upward through the head 30, thereby pulling out the entire sampling cylinder 19 after root sampling upward.

[0041] A lever 24 is installed on one side of the jack 26. The jack 26 and the lever 24 are movably connected through a rotary chuck 25. The angle of the lever 24 can be flexibly adjusted using the rotary chuck 25. When the device is moved, the lever 24 can be bent and stored.

[0042] A rectangular notch is provided in the middle of the moving base 2, and a limit plate 3 for cooperating with the rod body 4 is fixedly installed in the rectangular notch of the moving base 2. A drawer 5 is movably installed at the bottom of the moving base 2. The rod body 4 passes through the limit plate 3. When the rod body 4 is in use, the movement direction of the rod body 4 can be restricted by the limit plate 3, causing the rod body 4 to move vertically up and down. The rectangular notch facilitates the user to observe the position of the sampling cylinder 19, enabling the sampling cylinder 19 to be accurately docked on the roots of the crops. Secondly, through the setting of the drawer 5, it can be used to collect the collected crop root samples.

[0043] As Figure 3 shown, the moving base 2 and the drawer 5 are movably connected through a moving sliding frame 15. The moving sliding frame 15 is sleeved outside the drawer 5. Both sides of the moving sliding frame 15 are driven by a transverse push rod 16. A battery pack 1 is provided at the upper end of the moving base 2. After the sampling cylinder 19 completes the crop root sampling operation, by driving the moving sliding frame 15 with the transverse push rod 16, the drawer 5 installed inside the moving sliding frame 15 can be translated to the lower part of the sampling cylinder 19, facilitating the discharging operation of the sampling cylinder 19. Secondly, after the drawer 5 is full, pulling the drawer 5 can pull out the drawer 5 from the moving sliding frame 15, facilitating the transfer of the samples.

[0044] As Figure 4As shown, a stripper plate 17 is fixedly installed at the upper position of one end of the drawer 5, and a stripping groove 18 is provided in the middle of the stripper plate 17. The diameter of the stripping groove 18 is smaller than the outer diameter of the sampling cylinder 19. Reinforcing bars 22 are provided at both ends of the stripper plate 17. When the sampling cylinder 19 performs the sample discharging operation, by rotating the sampling cylinder 19, the limit chuck 20 is docked with the notch at the upper end of the sampling cylinder 19. At this time, the circular push plate 23 is in a movable state. When the hammer head 8 strikes the rod body 4, during the initial strike, the lower end of the sampling cylinder 19 is docked with the stripping groove 18. Since the diameter of the stripping groove 18 is smaller than the outer diameter of the sampling cylinder 19, the sampling cylinder 19 is stuck on the stripping groove 18. When striking again, the rod body 4 impacts the circular push plate 23, causing the circular push plate 23 to push out the crop root sample outward, and the sample is pushed out from the inside of the sampling cylinder 19 and thus falls into the inside of the drawer 5.

[0045] A circular push plate 23 is fixedly installed on the outer surface of the lower end of the rod body 4, and a limit chuck 20 is fixedly installed on the outer surface of the rod body 4 above the circular push plate 23. A notch for cooperating with the limit chuck 20 is provided at the upper end of the sampling cylinder 19. The state of the circular push plate 23 can be adjusted by using the limit chuck 20. When the limit chuck 20 and the notch are misaligned, the circular push plate 23 is in a fixed state. When the limit chuck 20 and the notch are docked, the rod body 4 can drive the circular push plate 23 to move to complete the sample discharging operation.

[0046] As Figure 7 As shown, a positioning retaining ring 21 is installed on the outer surface of the sampling cylinder 19 by threads. Side rotation clamping strips 27 are movably installed on both sides of the positioning retaining ring 21. When the sampling cylinder 19 is inserted into the soil for sample sampling operation, the positioning retaining ring 21 can be used to limit the insertion depth of the sampling cylinder 19. By rotating the positioning retaining ring 21, its position on the sampling cylinder 19 can be adjusted by using the thread structure. When the positioning retaining ring 21 contacts the soil surface, the sampling cylinder 19 cannot continue to penetrate, enabling the sampling cylinder 19 to be flexibly applicable to different types of root sampling operations. The setting of the side rotation clamping strips 27 can facilitate the rotational adjustment of the positioning retaining ring 21.

[0047] When the traditional root-taking device is used, it is inserted into the soil for root-taking operation by manual hammering. However, the sandy black soil is of the clay type, and the soil becomes extremely hard after drought, which is not conducive to the insertion of the root-taking device. Moreover, during the root-taking process, the root-taking device needs to be pulled out manually, and the entire root-taking process requires a large amount of manpower, reducing its working efficiency. Secondly, the traditional root-taking device does not have an auxiliary discharging structure. During the crop root sampling process, the taken root samples need to be discharged manually, and the sample root hairs are easily damaged during the sampling process, making the sample unable to be used normally, reducing its sampling effect. Secondly, the root depths of different types of crops are different, and the traditional device does not have an auxiliary limiting structure and cannot be flexibly applicable to different types of crop root structures, with a single function.

[0048] Therefore, during use, by setting the hoist 10 and the drive rod 12, when the crop root sampling device is in use, the insertion and extraction operations during the crop root sampling operation can be completed through the motor automation structure and the hydraulic lifting structure, replacing the manual method to complete the root sampling and improving the sampling efficiency;

[0049] During operation, when performing the crop root sampling operation, first remove the wheat seedlings on the upper part of the wheat and retain the root structure in the wheat soil. Push the moving base 2 to move the sampling cylinder 19 directly above the wheat roots. Start the motor 9, so that the motor 9 drives the crankshaft 29 to rotate. The drive rod 12 reciprocates through the crankshaft 29. One end of the drive rod 12 is movably docked with the elastic ejector rod 14. When the drive rod 12 moves, one end of the drive rod 12 pulls the elastic ejector rod 14. Since the hammer head 8 passes through the limit sleeve 13, the limit sleeve 13 restricts the moving direction of the hammer head 8, so that the hammer head 8 moves vertically back and forth, and the hammer head 8 repeatedly hammers the top head 30 structure at the upper end of the rod body 4. Through the setting of the elastic ejector rod 14, elastic adjustment can be performed when the hammer head 8 hammers. After the hammer head 8 hammers multiple times, the sampling cylinder 19 is completely inserted into the soil. A downward pressure is applied to the sampling cylinder 19 through the rod body 4 to insert the sampling cylinder 19 into the corresponding depth of the soil to complete the wheat root sampling operation. When the sampling cylinder 19 is inserted into the soil, the sampling cylinder 19 needs to be pulled out upward to complete the root taking operation. The user presses the pressure rod 24 to make the two jacks 26 lift the lifting plate 7 upward. Since the diameter of the top head 30 of the rod body 4 is larger than the diameter of the circular notch of the lifting plate 7, when the lifting plate 7 moves upward, the rod body 4 is driven to move upward through the top head 30, so as to pull out the entire sampling cylinder 19 after root taking upward, automatically completing the insertion and extraction operations of root sampling;

[0050] By setting the stripper plate 17 and the circular push plate 23, when the crop root sampling device is in use, the use of its root taking structure can be optimized, the discharging operation of the root samples can be automatically completed, the sample damage can be reduced, and its use effect can be improved;

[0051] In use, through the setting of the drawer 5, it can be used to collect the sampled crop root samples. After the sampling cylinder 19 completes the crop root sampling operation, by driving the moving sliding frame 15 through the horizontal push rod 16, the drawer 5 installed in the moving sliding frame 15 can be translated to the lower part of the sampling cylinder 19, facilitating the discharging operation of the sampling cylinder 19. Secondly, after the drawer 5 is full, pulling the drawer 5 can extract the drawer 5 from the moving sliding frame 15, facilitating the transfer of samples. When the sampling cylinder 19 performs the sample discharging operation, by rotating the sampling cylinder 19, the limit chuck 20 is docked with the notch at the upper end of the sampling cylinder 19. At this time, the circular push plate 23 is in an active state. When using the hammer head 8 to strike the rod body 4, during the initial strike, the lower end of the sampling cylinder 19 is docked with the blanking groove 18. Because the diameter of the blanking groove 18 is smaller than the outer diameter of the sampling cylinder 19, the sampling cylinder 19 is stuck on the blanking groove 18. When striking again, the rod body 4 impacts the circular push plate 23, causing the circular push plate 23 to push out the crop root samples outward, making the samples pop out from the inside of the sampling cylinder 19 and thus fall into the inside of the drawer 5;

[0052] By setting the positioning retaining ring 21, when the crop root sampling device is in use, the use of the sampling cylinder 19 can be optimized, and the use depth of the sampling cylinder 19 can be accurately controlled, enabling it to be applicable to different types of crops;

[0053] During operation, when the sampling cylinder 19 is inserted into the soil for sample sampling, the positioning retaining ring 21 can be used to limit the insertion depth of the sampling cylinder 19. By rotating the positioning retaining ring 21, its position on the sampling cylinder 19 can be adjusted using the threaded structure. When the positioning retaining ring 21 contacts the soil surface, the sampling cylinder 19 cannot penetrate further, enabling the sampling cylinder 19 to be flexibly applicable to different types of root sampling operations. The setting of the side rotation clamping strip 27 can facilitate the rotational adjustment of the positioning retaining ring 21.

[0054] The above is only a preferred embodiment of the present invention and does not impose any form of limitation on the present invention. Although the present invention has been disclosed above with the preferred embodiment, it is not intended to limit the present invention. Any person skilled in the art can make some changes or modifications to it as equivalent embodiments with equivalent changes within the scope of the technical solution of the present invention. However, as long as it does not depart from the content of the technical solution of the present invention, any brief modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention still fall within the scope of the technical solution of the present invention.

Claims

1. A crop root sampling device, characterized in that, It includes a moving base (2), a lower fixing frame (6) and an upper fixing frame (11). The lower fixing frame (6) is fixedly installed on the outer surface of the upper end of the moving base (2). The upper fixing frame (11) is fixedly installed on the outer surface of the upper end of the lower fixing frame (6). A rod body (4) is movably installed inside the lower fixing frame (6). A sampling cylinder (19) is installed at the lower part of the rod body (4). Two hoisting devices (10) for cooperating with the rod body (4) are arranged on the outer surface of the upper end of the lower fixing frame (6). A jacking plate (7) is movably installed between the two hoisting devices (10). The rod body (4) is movably sleeved at the middle position of the jacking plate (7), and a top head (30) is arranged at the top end of the rod body (4). A hammer head (8) for hammering the rod body (4) is movably installed inside the upper fixing frame (11). A positioning retaining ring (21) is movably sleeved on the outer surface of the sampling cylinder (19).

2. The root sampling device for crops according to claim 1, characterized in that, A crankshaft (29) is arranged above the hammer head (8). A driving rod (12) is movably installed in the middle of the crankshaft (29), and the lower end of the driving rod (12) is connected with the hammer head (8) through the elastic ejector rod (14).

3. The root sampling device for crops according to claim 2, characterized in that, The driving rod (12) is movably connected with the elastic ejector rod (14). A limiting sleeve (13) is movably sleeved on the outer surface of the hammer head (8). One side of the crankshaft (29) is driven by a motor (9).

4. The crop root sampling device according to claim 1, characterized in that, The hoisting device (10) includes a jack (26) and a limiting clamping seat (28). The jack (26) is installed inside the limiting clamping seat (28). Both ends of the jacking plate (7) are placed inside the two limiting clamping seats (28), and the jacking plate (7) is located above the jack (26).

5. The root sampling device for crops according to claim 4, characterized in that, A pressure rod (24) is installed on one side of the jack (26). The jack (26) and the pressure rod (24) are movably connected through a rotary chuck (25).

6. The crop root sampling device according to claim 1, characterized in that, A rectangular notch is arranged in the middle of the moving base (2), and a limiting plate (3) for cooperating with the rod body (4) is fixedly installed in the rectangular notch of the moving base (2). A drawer (5) is movably installed at the bottom of the moving base (2).

7. The root sampling device for crops according to claim 4, characterized in that, The moving base (2) and the drawer (5) are movably connected through a moving sliding frame (15). The moving sliding frame (15) is sleeved on the outer side of the drawer (5). Both sides of the moving sliding frame (15) are driven by transverse push rods (16). A battery pack (1) is arranged at the upper end of the moving base (2).

8. The crop root sampling device according to claim 7, wherein, A blanking plate (17) is fixedly installed at the upper part of one end of the drawer (5), and a blanking groove (18) is arranged in the middle of the blanking plate (17). The diameter of the blanking groove (18) is smaller than the outer diameter of the sampling cylinder (19). Reinforcing retaining strips (22) are arranged at both ends of the blanking plate (17).

9. The root sampling device for crops according to claim 7, characterized in that, A circular pushing plate (23) is fixedly installed on the outer surface of the lower end of the rod body (4). A limiting chuck (20) is fixedly installed on the outer surface of the rod body (4) above the circular pushing plate (23). A notch for cooperating with the limiting chuck (20) is arranged at the upper end of the sampling cylinder (19).

10. The crop root sampling device according to claim 1, wherein, A positioning retaining ring (21) is mounted on the outer surface of the sampling cylinder (19) through threads, and side rotation clamping strips (27) are movably mounted on both sides of the positioning retaining ring (21).

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