A wheat root sampling device

Abstract

The present invention provides a sampling device for wheat root system, which relates to the technical field of agricultural auxiliary devices, including a mounting plate, a soil taking mechanism and a cleaning mechanism; the soil taking mechanism includes a support frame fixedly arranged on both sides of the top of the mounting plate, a mounting frame fixedly arranged on the top of the two support frames, a hydraulic cylinder fixedly arranged on the inner side of the mounting frame, a soil taking box fixedly arranged on the bottom end of the hydraulic cylinder, a movable cover fixedly connected to the surface of the soil taking box by bolts, two handles are arranged on the left and right mirror images of the top of the movable cover, and two pressure rods are arranged on the inner side of the soil taking box for vertical sliding. This scheme finally realizes the use of water flow to wash away the soil of the wheat root system, so that a relatively complete wheat root system can be obtained, and the integrity of the wheat root system after sampling is ensured, and there is no need to spend time to reprocess the wheat root system later, and the sampling efficiency is effectively improved, and the measurement can be carried out immediately after sampling in the field to ensure the accuracy of the measurement results.

Description

Technical Field

[0001] The invention relates to the technical field of agricultural auxiliary devices, in particular to a sampling device for wheat roots. Background Art

[0002] The wheat root system mainly plays the role of absorption, metabolism and support in the process of growth and development. Part of the mineral nutrients absorbed by the roots are retained in the roots for use, and the other part enters the conducting tissue in its original form or in the form of other compounds, and is transported to various parts with the rise of transpiration flow to meet the needs of the growth and development of organs such as leaves, stems, and ears. The wheat root system has both horizontal distribution and vertical growth, so it can form a good support and pulling force to support the plant to stand upright. It can be seen that a strong root system is the basis for strong seedlings, strong stalks, and large ears. In wheat production, phenomena such as premature aging in the late stage and withering and forced maturity are all related to poor root development.

[0003] In the related art, wheat root sampling is traditionally performed by digging with a shovel, but this easily causes root breakage and manual operation is time-consuming and labor-intensive. Publication No. CN110530664B discloses a field crop root sampling device and method, which realizes automatic clamping and straightening of the sampler through a limiting and straightening mechanism, without the need for manual straightening, and has high safety. The sampler is automatically struck by a striking mechanism to achieve gradual downward movement of the sampler and complete sampling without the need for manual sampling, thus saving time and effort.

[0004] However, in actual use, the sampling efficiency of the above-mentioned device is relatively low. The device obtains cylindrical soil through the sampler. In order to obtain the root system, it needs to be divided, soaked, rinsed, sorted and other steps. The overall time is more than ten hours. However, according to relevant technologies, after field sampling of wheat roots, the root activity test results are relatively stable within six hours, while the test results change significantly after six hours, especially after sixteen hours. Therefore, after sampling the wheat roots through this device, the samples obtained will affect the judgment of the staff.

[0005] Therefore, it is necessary to provide a sampling device for wheat roots to solve the above technical problems. Summary of the invention

[0006] The present invention provides a sampling device for wheat roots, which solves the technical problem that some existing sampling devices in the related art have relatively low sampling efficiency when sampling wheat roots.

[0007] In order to solve the above technical problems, the wheat root sampling device provided by the present invention comprises a mounting plate, a soil sampling mechanism and a cleaning mechanism;

[0008] The soil taking mechanism comprises support frames fixedly arranged on both sides of the top of the mounting plate, the tops of the two support frames are fixedly provided with mounting frames, the inner sides of the mounting frames are fixedly provided with hydraulic cylinders, the bottom ends of the hydraulic cylinders are fixedly provided with soil taking boxes, the surface of the soil taking boxes is fixedly connected with a movable cover by bolts, the top of the movable cover is provided with two handles in left and right mirror images, the inner side of the soil taking box is provided with two pressure rods for vertical sliding, and the bottom ends of the two pressure rods are fixedly connected with pressure plates located on the inner side of the soil taking box;

[0009] The cleaning mechanism includes a water tank arranged on the rear side of the mounting plate, a water pump is arranged on the front side of the top of the mounting plate, a protective cover is arranged on the front side of the top of the mounting plate and on the outer surface of the water pump, a water suction pipe is connected to the right side of the water pump, the rear end of the water suction pipe is connected to the right side of the water tank, the front of the water pump is connected to a hose, the bottom end of the hose is connected to a water outlet pipe, and the surface of the water outlet pipe is connected to a plurality of nozzles.

[0010] Preferably, through grooves are provided on the inner sides of the two support frames, and the soil taking box and the movable cover form a box body with an opening facing downward.

[0011] Preferably, the surface of the water suction pipe is fixedly connected to the inner side of the mounting plate, and the plurality of nozzles are equidistantly distributed on the front side of the water outlet pipe and tilted downward at an angle of 45 degrees.

[0012] Preferably, an adjusting mechanism is provided on the front side of the bottom of the mounting plate, and the adjusting mechanism comprises a hydraulic rod fixedly arranged on the front side of the bottom of the mounting plate, a connecting plate is fixedly arranged on the front end of the hydraulic rod, a movable bracket is fixedly arranged on the front side of the connecting plate, a mounting seat is fixedly arranged on the inner side of the bottom of the movable bracket, a rotating seat is fixedly arranged on the rear side of the top of the mounting seat, an electric telescopic rod is rotatably connected to the inner side of the rotating seat, rotating brackets are rotatably connected to both sides of the bottom of the movable bracket, a cross plate is fixedly connected to the back side of the two rotating brackets, a connecting bracket is fixedly arranged on the top of the cross plate, a movable sleeve is provided on the surface of the connecting bracket, and the surface of the movable sleeve is fixedly connected to the front end of the electric telescopic rod, two connecting seats are fixedly arranged on the front sides of the two rotating brackets, and the surfaces of the two connecting seats are fixedly connected to the surface of the water outlet pipe.

[0013] Preferably, the inner sides of the two support frames are rotatably connected to a limiting mechanism, the limiting mechanism includes a limiting frame rotatably arranged on the inner sides of the two support frames, the back sides of the two limiting frames are fixedly connected with a rotating cylinder, the two rotating cylinders are rotatably connected to the inner sides of the two support frames respectively, the inner sides of the back sides of the two support frames are slidably connected to two sliding rods, the surfaces of the tops of the four sliding rods are sleeved with springs, the four sliding rods are grouped in pairs, and a pressing plate is fixed on the top of each group of sliding rods, a limiting plate is fixed on the bottom end of each group of sliding rods, and a limiting rod is fixed on the top of the two limiting plates, and the surfaces of the two limiting rods are slidably connected to the two support frames and the inner sides of the two rotating cylinders respectively.

[0014] Preferably, the inner sides of the two support frames are provided with sliding grooves for use with the sliding rod, the inner sides of the two support frames are provided with grooves for use with the limiting rod, and the tops and bottoms of the two rotating cylinders are provided with through holes for use with the limiting rod.

[0015] Preferably, a supporting mechanism is provided on the front side of the bottom of the mounting plate and on both sides of the hydraulic rod, the supporting mechanism comprising two guide brackets fixedly arranged on the front side of the bottom of the mounting plate, the inner sides of the two guide brackets on the separated sides are slidably connected with guide rails, the two guide rails on the separated sides are fixedly connected with gear plates, the front sides of the two gear plates are fixedly connected with the back sides of the connecting plate, the inner side of the mounting plate is rotatably connected with two rotating sleeves, the inner sides of the two rotating sleeves are key-connected with rotating rods, the surfaces of the two rotating rods are fixedly provided with gears, the two gears are respectively meshed with the two gear plates, and the bottom ends of the two rotating rods are fixedly connected with a supporting plate.

[0016] Preferably, support legs are fixedly provided on both sides of the bottom of the mounting plate, two universal wheels are respectively provided on the bottoms of the two support legs, and a push handle is provided on the rear side of the top of the mounting plate.

[0017] Compared with the related art, the wheat root sampling device provided by the present invention has the following beneficial effects:

[0018] Compared with digging with a shovel and sampling with soil, in this case, a rectangular trough is taken out next to the wheat root system through a hydraulic cylinder, a soil box and a movable cover. The distribution of the wheat root system in the soil can be intuitively observed through the trough wall, and the soil of the wheat root system is flushed with water. The washed muddy water is collected through the trough produced after soil taking, which can avoid the impact of muddy water on the surrounding environment and ensure the cleanliness of the sampling environment. After the soil of the wheat root system is flushed away by water, a relatively complete wheat root system can be obtained, which ensures the integrity of the wheat root system after sampling. There is no need to spend time on reprocessing the wheat root system, and the sampling efficiency has been effectively improved. The measurement can be carried out immediately after sampling in the field to ensure the accuracy of the measurement results. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0020] Figure 1 The best structural diagram provided by the present invention;

[0021] Figure 2 A schematic diagram of the structure of a rear view of the mounting plate provided by the present invention;

[0022] Figure 3 A schematic diagram of the structure of the soil taking mechanism provided by the present invention;

[0023] Figure 4 for Figure 3 A schematic structural diagram of a cross-sectional view of a soil borrowing box shown;

[0024] Figure 5 for Figure 3 The schematic diagram of the state in which the hydraulic cylinder is extended downward to drive the soil box and the movable cover to move downward;

[0025] Figure 6 A schematic diagram of the structure of the cleaning mechanism provided by the present invention;

[0026] Figure 7 A schematic diagram of the structure of the regulating mechanism provided by the present invention;

[0027] Figure 8 for Figure 7 The schematic diagram of the state in which the hydraulic rod is extended to drive the movable bracket and the mounting seat to move forward;

[0028] Fig. 9 for Figure 7The schematic diagram of the state in which the electric telescopic rod is extended upward to drive the rotating bracket and the horizontal plate to flip downward;

[0029] Fig.10 A schematic diagram of the structure of the limiting mechanism provided by the present invention;

[0030] Fig.11 for Fig.10 A schematic structural diagram of a cross-sectional view of the support frame shown;

[0031] Fig.12 for Fig.10 The schematic diagram of the state where the limit frame is turned outward 180 degrees;

[0032] Fig.13 A schematic diagram of the structure of the support mechanism provided by the present invention;

[0033] Fig.14 for Fig.13 A schematic diagram of the structure of the gear plate shown;

[0034] Fig.15 for Fig.13 The hydraulic rod shown extends forward and drives the two gear plates to move forward through the connecting plate, and the driving gear drives the rotating rod and the supporting plate to rotate 180 degrees.

[0035] Description of Figure Numbers:

[0036] 1. Mounting plate;

[0037] 2. Soil taking mechanism; 21. Support frame; 22. Mounting frame; 23. Hydraulic cylinder; 24. Soil taking box; 25. Movable cover; 26. Handle; 27. Press rod; 28. Press plate;

[0038] 3. Cleaning mechanism; 31. Water tank; 32. Water pump; 33. Protective cover; 34. Suction pipe; 35. Hose; 36. Water outlet pipe; 37. Spray nozzle;

[0039] 4. Adjustment mechanism; 41. Hydraulic rod; 42. Connecting plate; 43. Mobile bracket; 44. Mounting seat; 45. Rotating seat; 46. Electric telescopic rod; 47. Rotating bracket; 48. Horizontal plate; 49. Connecting bracket; 410. Movable sleeve; 411. Connecting seat;

[0040] 5. Limiting mechanism; 51. Limiting frame; 52. Rotating cylinder; 53. Sliding rod; 54. Spring; 55. Pressing plate; 56. Limiting plate; 57. Limiting rod;

[0041] 6. Support mechanism; 61. Guide bracket; 62. Guide rail; 63. Gear plate; 64. Rotating sleeve; 65. Rotating rod; 66. Gear; 67. Support plate;

[0042] 7. Support legs; 8. Universal wheels; 9. Push handle.

[0043] The realization of the purpose, functional features and advantages of the present invention will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0044] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0045] The invention provides a sampling device for wheat root system.

[0046] First embodiment:

[0047] See also Figures 1 to 6 , a wheat root sampling device, comprising a mounting plate 1, a soil sampling mechanism 2 and a cleaning mechanism 3;

[0048] The soil taking mechanism 2 includes a support frame 21 fixedly mounted on both sides of the top of the mounting plate 1, a mounting frame 22 is fixedly mounted on the top of the two support frames 21, a hydraulic cylinder 23 is fixedly mounted on the inner side of the mounting frame 22, a soil taking box 24 is fixedly mounted on the bottom end of the hydraulic cylinder 23, a movable cover 25 is fixedly mounted on the surface of the soil taking box 24 by bolts, two handles 26 are mirrored on the top of the movable cover 25, two pressure rods 27 are vertically slidably mounted on the inner side of the soil taking box 24, and a pressure plate 28 is fixedly mounted on the bottom end of the two pressure rods 27 and located on the inner side of the soil taking box 24;

[0049] Please combine Figure 5 : The hydraulic cylinder 23 extends downward, thereby driving the soil box 24 and the movable cover 25 to move downward. The hydraulic cylinder 23 continues to extend, thereby driving the soil box 24 and the movable cover 25 to be inserted into the soil. As the hydraulic cylinder 23 retracts, a rectangular parallelepiped of soil can be taken out from the ground through the soil box 24 and the movable cover 25. By pressing the two pressure rods 27 downward, the two pressure rods 27 drive the pressure plate 28 to move downward in the soil box 24, so that the soil in the soil box 24 can be pushed out;

[0050] Furthermore, after the soil is taken out through the soil box 24 and the movable cover 25, the bolts at the connection between the soil box 24 and the movable cover 25 are removed, and then the two handles 26 are pulled upward, and the movable cover 25 is driven to move upward through the two handles 26, so that a rectangular block of soil can be obtained;

[0051] Preferably, a through hole for use with the two pressure rods 27 is opened on the inner side of the soil taking box 24, so that the two pressure rods 27 can slide up and down in the soil taking box 24.

[0052] The cleaning mechanism 3 includes a water tank 31 arranged at the rear side of the mounting plate 1, a water pump 32 is arranged at the front side of the top of the mounting plate 1, a protective cover 33 is arranged at the front side of the top of the mounting plate 1 and on the outer surface of the water pump 32, a water pump 34 is connected to the right side of the water pump 32, the rear end of the water pump 34 is connected to the right side of the water tank 31, a hose 35 is connected to the front side of the water pump 32, the bottom end of the hose 35 is connected to a water outlet pipe 36, and the surface of the water outlet pipe 36 is connected to a plurality of nozzles 37;

[0053] Please combine Figure 6 : Aim the nozzle 37 at the soil part of the wheat root system, then start the water pump 32, the water pump 32 draws water from the water tank 31 through the suction pipe 34, and then transports the water to the outlet pipe 36 through the hose 35, and finally sprays the water to the soil part of the wheat root system through the nozzle 37, thereby washing away the soil of the wheat root system, avoiding the problem of root breakage caused by digging with a shovel, and can ensure the integrity of the wheat root system to a certain extent.

[0054] The inner sides of the two support frames 21 are both provided with through grooves, and the soil taking box 24 and the movable cover 25 form a box body with an opening facing downward.

[0055] The surface of the water suction pipe 34 is fixedly connected to the inner side of the mounting plate 1 , and the plurality of nozzles 37 are evenly distributed on the front side of the water outlet pipe 36 and are tilted downward at an angle of 45 degrees.

[0056] In this embodiment, compared with digging with a shovel and sampling with soil, a rectangular trough is taken out next to the wheat root system through the hydraulic cylinder 23, the soil box 24 and the movable cover 25. The distribution of the wheat root system in the soil can be visually observed through the trough wall, and then the water pump 32 is started, and the outlet pipe 36 and the nozzle 37 are used to spray water to the wheat root system, and the soil of the wheat root system is flushed by the water flow. The flushed muddy water is collected through the trough generated after soil taking, which can avoid the influence of muddy water on the surrounding environment and ensure the cleanliness of the sampling environment. After the soil of the wheat root system is flushed away by the water flow, a relatively complete wheat root system can be obtained, which ensures the integrity of the wheat root system after sampling. There is no need to spend time on the wheat root system for subsequent reprocessing, and the sampling efficiency is effectively improved. The measurement can be carried out immediately after sampling in the field to ensure the accuracy of the measurement results.

[0057] Second embodiment:

[0058] See also Figure 1 , Figures 7 to 12, an adjusting mechanism 4 is provided at the front side of the bottom of the mounting plate 1, and the adjusting mechanism 4 comprises a hydraulic rod 41 fixedly arranged at the front side of the bottom of the mounting plate 1, a connecting plate 42 is fixedly arranged at the front end of the hydraulic rod 41, a movable bracket 43 is fixedly arranged at the front side of the connecting plate 42, a mounting seat 44 is fixedly arranged at the inner side of the bottom of the movable bracket 43, a rotating seat 45 is fixedly arranged at the rear side of the top of the mounting seat 44, an electric telescopic rod 46 is rotatably connected to the inner side of the rotating seat 45, rotating brackets 47 are rotatably connected to both sides of the bottom of the movable bracket 43, a horizontal plate 48 is fixedly connected to the back of the two rotating brackets 47, a connecting bracket 49 is fixedly arranged at the top of the horizontal plate 48, a movable sleeve 410 is sleeved on the surface of the connecting bracket 49, and the surface of the movable sleeve 410 is fixedly connected to the front end of the electric telescopic rod 46, two connecting seats 411 are fixedly arranged at the front sides of the two rotating brackets 47, and the surfaces of the two connecting seats 411 are fixedly connected to the surface of the water outlet pipe 36;

[0059] Please combine Figure 8 : The hydraulic rod 41 is extended forward, and the hydraulic rod 41 drives the connecting plate 42 and the movable bracket 43 to move forward. The movable bracket 43 drives the mounting seat 44, the horizontal plate 48, the water outlet pipe 36 and the nozzle 37 to move forward during the movement, thereby adjusting the distance between the nozzle 37 and the soil part of the wheat root system;

[0060] Please combine Fig. 9 : Start the electric telescopic rod 46, and the two rotating brackets 47 are rotated upward by extending the electric telescopic rod 46. During the rotation process, the two rotating brackets 47 simultaneously drive the horizontal plate 48, the connecting bracket 49, and the connecting seat 411 to rotate. The rotation of the connecting seat 411 drives the water outlet pipe 36 and the nozzle 37 to rotate downward, thereby adjusting the spraying position of the nozzle 37;

[0061] Furthermore, the electric telescopic rod 46 is started, and the two rotating brackets 47 are driven to rotate back and forth through the reciprocating extension and retraction of the electric telescopic rod 46. The reciprocating rotation of the two rotating brackets 47 drives the water outlet pipe 36 and the nozzle 37 to move back and forth through the connecting seat 411, so that the nozzle 37 flushes the soil part of the wheat root system at a certain frequency, thereby improving the flushing effect on the soil part of the wheat root system.

[0062] The inner sides of the two support frames 21 are rotatably connected to the limiting mechanism 5, and the limiting mechanism 5 includes a limiting frame 51 rotatably arranged on the inner sides of the two support frames 21, and the back sides of the two limiting frames 51 are fixedly connected with a rotating cylinder 52, and the two rotating cylinders 52 are rotatably connected to the inner sides of the two support frames 21 respectively, and the inner sides of the back sides of the two support frames 21 are slidably connected with two sliding rods 53 respectively, and the surfaces of the tops of the four sliding rods 53 are sleeved with springs 54, and the four sliding rods 53 are grouped in pairs, and the top of each group of the sliding rods 53 is fixedly provided with a pressing plate 55, and the bottom end of each group of the sliding rods 53 is fixedly provided with a limiting plate 56, and the tops of the two limiting plates 56 are fixedly provided with limiting rods 57, and the surfaces of the two limiting rods 57 are slidably connected to the inner sides of the two support frames 21 and the two rotating cylinders 52 respectively;

[0063] Please combine Figure 1 and Fig.10 When the hydraulic cylinder 23 drives the soil taking box 24 and the movable cover 25 to complete soil taking and continue to move upward, the top ends of the two pressure rods 27 will touch the bottom ends of the two limit frames 51 respectively, and then the two pressure rods 27 will drive the pressing plate 28 to move downward in the soil taking box 24, so that the soil in the soil taking box 24 can be pushed out;

[0064] Please combine Fig.12 : The sliding rod 53 is pressed downward by the pressing plate 55, and the spring 54 contracts. At the same time, the sliding rod 53 drives the limiting plate 56 and the limiting rod 57 to move downward, so that the limiting rod 57 is separated from the rotating cylinder 52, and then the limiting frame 51 is rotated 180 degrees outward, thereby canceling the limiting effect of the limiting frame 51 on the pressure rod 27.

[0065] The inner sides of the two support frames 21 are provided with sliding grooves for use with the sliding rod 53, the inner sides of the two support frames 21 are provided with grooves for use with the limiting rod 57, and the tops and bottoms of the two rotating cylinders 52 are provided with through holes for use with the limiting rod 57.

[0066] In this embodiment, the hydraulic rod 41 is extended forward, and the nozzle 37 can be driven to move forward through the connecting plate 42 and the movable bracket 43, so as to adjust the distance between the nozzle 37 and the soil part of the wheat root system, and then adjust the impact force of the water flow on the soil part of the wheat root system. By reciprocating the extension and retraction of the electric telescopic rod 46, the rotating bracket 47 and the connecting seat 411 can be used to drive the water outlet pipe 36 and the nozzle 37 to swing back and forth, so that the nozzle 37 flushes the soil part of the wheat root system at a certain frequency, thereby improving the flushing effect on the soil part of the wheat root system. By manually controlling the position of the limit frame 51, the soil taken by the soil taking box 24 can be selected to be pushed out or retained.

[0067] Third embodiment:

[0068] See also Figures 13 to 15 , a support mechanism 6 is provided on the front side of the bottom of the mounting plate 1 and on both sides of the hydraulic rod 41, and the support mechanism 6 includes two guide brackets 61 fixedly arranged on the front side of the bottom of the mounting plate 1, and the inner sides of the two guide brackets 61 separated from each other are slidably connected with guide rails 62, and the two guide rails 62 separated from each other are fixedly connected with gear plates 63, and the front faces of the two gear plates 63 are fixedly connected with the back faces of the connecting plate 42, and the inner side of the mounting plate 1 is rotatably connected with two rotating sleeves 64, and the inner sides of the two rotating sleeves 64 are key-grooved with rotating rods 65, and the surfaces of the two rotating rods 65 are fixedly provided with gears 66, and the two gears 66 are respectively meshed with the two gear plates 63, and the bottom ends of the two rotating rods 65 are fixedly connected with support plates 67;

[0069] Please combine Fig.15 : When the hydraulic rod 41 drives the connecting plate 42 to extend forward, the connecting plate 42 will simultaneously drive the two gear plates 63 to move forward, so that the two guide rails 62 slide forward on the inner side of the guide bracket 61, and the movement of the two gear plates 63 drives the two gears 66 to rotate. The two gears 66 drive the two support plates 67 to rotate 180 degrees through the two rotating rods 65, so that the two support plates 67 are located at the bottom of the soil box 24;

[0070] Preferably, grooves for use with two guide rails 62 are respectively provided on the inner sides of the two guide brackets 61, so that the two guide rails 62 can be provided to slide forward and backward. The provision of the guide rails 62 can improve the stability of the connecting plate 42 when moving.

[0071] Support legs 7 are fixedly provided on both sides of the bottom of the mounting plate 1 , two universal wheels 8 are respectively provided at the bottom of the two support legs 7 , and a push handle 9 is provided on the rear side of the top of the mounting plate 1 .

[0072] In this embodiment, the hydraulic rod 41 extends forward, and under the action of the connecting plate 42, the two gear plates 63 can be driven to move forward. The movement of the gear plate 63 drives the rotating rod 65 to rotate under the action of the gear 66. The rotation of the rotating rod 65 drives the support plate 67 to rotate 180 degrees, so that the support plate 67 is located at the bottom of the soil box 24. When it is necessary to obtain a complete soil block in the soil box 24, the two support plates 67 can be used to support the bottom of the soil block to prevent it from collapsing.

[0073] Please refer to Figures 1 to 15 The working principle of the wheat root sampling device provided by the present invention is as follows:

[0074] Step S1, first move the device to the sampling location through the universal wheel 8 and the push handle 9, then select the wheat to be sampled, make the front edge of the soil box 24 parallel to the wheat ridge, and keep a certain distance between the front edge and the wheat ridge, then start the hydraulic cylinder 23, drive the soil box 24 and the movable cover 25 to move downward, and insert the soil box 24 and the movable cover 25 into the soil, when the soil box 24 is inserted into the designated position, the soil box 24 and the movable cover 25 are moved upward by the retraction of the hydraulic cylinder 23, and then the soil is taken out to form a rectangular groove on the ground;

[0075] Step S2, after a rectangular trough is taken out on the ground, the device is moved backward to a certain position by the universal wheel 8 and the push handle 9, so that the nozzle 37 faces the wheat to be sampled and is aligned with the position of the rectangular trough wall, and then the water pump 32 is started, the water pump 32 pumps out the water in the water tank 31 through the pumping pipe 34, and transports it to the outlet pipe 36 through the hose 35, and finally sprays the water to the soil part of the wheat root system through the nozzle 37, and uses the water flow to wash down the soil of the wheat root system, and the muddy water formed by washing flows into the rectangular trough;

[0076] Step S3, start the hydraulic rod 41, the hydraulic rod 41 extends forward and drives the connecting plate 42 to move forward, and the connecting plate 42 drives the water outlet pipe 36 and the nozzle 37 to move forward through the movable bracket 43, the rotating bracket 47 and the connecting seat 411, so that the distance between the nozzle 37 and the soil part of the wheat root system can be adjusted. When the distance between the nozzle 37 and the soil part of the wheat root system becomes smaller, the impact force of the water sprayed by the nozzle 37 will also increase accordingly, thereby improving the flushing efficiency of the soil;

[0077] Step S4, start the electric telescopic rod 46, extend the electric telescopic rod 46 to drive the two rotating brackets 47 to rotate, and the two rotating brackets 47 simultaneously drive the horizontal plate 48, the connecting bracket 49, and the connecting seat 411 to rotate during the rotation process, and the water outlet pipe 36 and the nozzle 37 are driven to rotate downward by the rotation of the connecting seat 411, so as to adjust the spraying position of the nozzle 37, and the two rotating brackets 47 are driven to rotate back and forth by the reciprocating extension and retraction of the electric telescopic rod 46, and the two rotating brackets 47 are driven to reciprocate by the reciprocating rotation of the two rotating brackets 47, so as to drive the water outlet pipe 36 and the nozzle 37 to reciprocate by the connecting seat 411, so as to make the nozzle 37 flush the soil part of the wheat root system at a certain frequency;

[0078] Step S5, please combine with step S3, when the hydraulic rod 41 drives the connecting plate 42 to extend forward, the two connecting plates 42 will drive the two gear plates 63 to move forward, and the movement of the two gear plates 63 will drive the two gears 66 to rotate, and the two gears 66 will simultaneously drive the rotating rod 65 to rotate during the rotation process, and the rotation of the rotating rod 65 will drive the two support plates 67 to rotate 180 degrees, so that the two support plates 67 are located at the bottom of the soil box 24, supporting the soil in the soil box 24 to prevent it from collapsing;

[0079] Step S6, when the soil of the wheat root system is washed away by water flow, the wheat root system can be sampled. After the sampling is completed, the soil box 24 is pushed to the top of the rectangular groove by the universal wheel 8 and the push handle 9, and the two gear plates 63 are driven to move backward by the connecting plate 42 through the retraction of the hydraulic rod 41, and then the two support plates 67 are driven to reset by the gear 66 and the rotating rod 65, and the support for the soil in the soil box 24 is cancelled. Then, the soil box 24 and the movable cover 25 are driven to move upward by the hydraulic cylinder 23. When the top of the pressure rod 27 touches the bottom of the limit frame 51, as the hydraulic cylinder 23 continues to retract, the soil blocks in the soil box 24 can be pushed out by the pressure plate 28, so that the soil blocks fall into the rectangular groove, thereby restoring the ground.

[0080] The above description is only a preferred embodiment of the present invention, and does not limit the patent scope of the present invention. All equivalent structural changes made by using the contents of the present invention specification and drawings under the concept of the present invention, or directly / indirectly applied in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A wheat root sampling device, characterized in that: It includes a mounting plate, a soil taking mechanism and a cleaning mechanism; The soil taking mechanism comprises support frames fixedly arranged on both sides of the top of the mounting plate, the tops of the two support frames are fixedly provided with mounting frames, the inner sides of the mounting frames are fixedly provided with hydraulic cylinders, the bottom ends of the hydraulic cylinders are fixedly provided with soil taking boxes, the surface of the soil taking boxes is fixedly connected with a movable cover by bolts, the top of the movable cover is provided with two handles in left and right mirror images, the inner side of the soil taking box is provided with two pressure rods for vertical sliding, and the bottom ends of the two pressure rods are fixedly connected with pressure plates located on the inner side of the soil taking box; The cleaning mechanism comprises a water tank arranged at the rear side of the mounting plate, a water pump is arranged at the front side of the top of the mounting plate, a protective cover is arranged at the front side of the top of the mounting plate and at the outer surface of the water pump, a water pump is connected to the right side of the water pump, the rear end of the water pump is connected to the right side of the water tank, a hose is connected to the front side of the water pump, the bottom end of the hose is connected to a water outlet pipe, and the surface of the water outlet pipe is connected to a plurality of nozzles, water is sprayed to the soil part of the wheat root system through the nozzles, and the soil of the wheat root system part is washed down by the water flow; The front side of the bottom of the mounting plate is provided with an adjusting mechanism, and the adjusting mechanism comprises a hydraulic rod fixedly arranged on the front side of the bottom of the mounting plate, the front end of the hydraulic rod is fixedly provided with a connecting plate, a movable bracket is fixedly provided on the front side of the connecting plate, a mounting seat is fixedly provided on the inner side of the bottom of the movable bracket, a rotating seat is fixedly provided on the rear side of the top of the mounting seat, an electric telescopic rod is rotatably connected to the inner side of the rotating seat, both sides of the bottom of the movable bracket are rotatably connected to the rotating bracket, a cross plate is fixedly connected to the back of the two rotating brackets, a connecting bracket is fixedly provided on the top of the cross plate, a movable sleeve is sleeved on the surface of the connecting bracket, the surface of the movable sleeve is fixedly connected to the front end of the electric telescopic rod, two connecting seats are fixedly provided on the front sides of the two rotating brackets, and the surfaces of the two connecting seats are fixedly connected to the surface of the water outlet pipe; A supporting mechanism is provided on the front side of the bottom of the mounting plate and on both sides of the hydraulic rod, the supporting mechanism comprising two guide brackets fixedly arranged on the front side of the bottom of the mounting plate, the inner sides of the two guide brackets on the separated sides are slidably connected with guide rails, the two guide rails on the separated sides are fixedly connected with gear plates, the front sides of the two gear plates are fixedly connected with the back sides of the connecting plates, the inner side of the mounting plate is rotatably connected with two rotating sleeves, the inner sides of the two rotating sleeves are key-grooved with rotating rods, the surfaces of the two rotating rods are fixedly provided with gears, the two gears are respectively meshed with the two gear plates, and the bottom ends of the two rotating rods are fixedly connected with a supporting plate.

2. The wheat root sampling device according to claim 1, characterized in that: The inner sides of the two support frames are both provided with through grooves, and the soil taking box and the movable cover form a box body with an opening facing downward.

3. The wheat root sampling device according to claim 1, characterized in that: The surface of the water suction pipe is fixedly connected to the inner side of the mounting plate, and the plurality of nozzles are evenly distributed on the front side of the water outlet pipe and tilted downward at an angle of 45 degrees.

4. The wheat root sampling device according to claim 1, characterized in that: The inner sides of the two support frames are rotatably connected to a limiting mechanism, and the limiting mechanism includes a limiting frame rotatably arranged on the inner sides of the two support frames, the back sides of the two limiting frames are fixedly connected with a rotating cylinder, the two rotating cylinders are respectively rotatably connected to the inner sides of the two support frames, the inner sides of the back sides of the two support frames are respectively slidably connected to two sliding rods, the surfaces of the tops of the four sliding rods are respectively sleeved with springs, the four sliding rods are grouped in twos, and a pressing plate is fixed on the top of each group of sliding rods, a limiting plate is fixed on the bottom end of each group of sliding rods, and a limiting rod is fixed on the top of the two limiting plates, and the surfaces of the two limiting rods are respectively slidably connected to the two support frames and the inner sides of the two rotating cylinders.

5. The wheat root sampling device according to claim 4, characterized in that: The inner sides of the two support frames are provided with sliding grooves used in conjunction with the sliding rod, the inner sides of the two support frames are provided with grooves used in conjunction with the limiting rod, and the tops and bottoms of the two rotating cylinders are provided with through holes used in conjunction with the limiting rod.

6. The wheat root sampling device according to claim 1, characterized in that: Support legs are fixedly arranged on both sides of the bottom of the mounting plate, two universal wheels are respectively arranged at the bottoms of the two support legs, and a push handle is arranged at the rear side of the top of the mounting plate.

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