CN115950670B - Soil sampling system and soil sampling method for setting layer depth - Google Patents
Soil sampling system and soil sampling method for setting layer depth Download PDFInfo
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- CN115950670B CN115950670B CN202310092960.4A CN202310092960A CN115950670B CN 115950670 B CN115950670 B CN 115950670B CN 202310092960 A CN202310092960 A CN 202310092960A CN 115950670 B CN115950670 B CN 115950670B
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- 238000005527 soil sampling Methods 0.000 title claims abstract description 36
- 238000000034 method Methods 0.000 title claims abstract description 24
- 238000005070 sampling Methods 0.000 claims abstract description 73
- 239000002689 soil Substances 0.000 claims abstract description 62
- 238000005553 drilling Methods 0.000 claims abstract description 28
- 230000001351 cycling effect Effects 0.000 claims description 3
- 230000002452 interceptive effect Effects 0.000 claims description 2
- 238000001514 detection method Methods 0.000 abstract description 10
- 230000002093 peripheral effect Effects 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 8
- 239000003638 chemical reducing agent Substances 0.000 description 4
- 238000002955 isolation Methods 0.000 description 4
- 238000007689 inspection Methods 0.000 description 3
- 230000003137 locomotive effect Effects 0.000 description 3
- 238000007667 floating Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 238000012876 topography Methods 0.000 description 1
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Abstract
The invention provides a soil sampling system and a soil sampling method for setting layer depth, which relate to the field of soil sampling and adopt the following scheme: including the stand, be provided with the mounting panel on the stand, be provided with drive assembly on the mounting panel, drive assembly is connected with soil sampling assembly, soil sampling assembly includes the sleeve, telescopic upper end is provided with the collecting tray, be provided with drilling blade on the sleeve outer peripheral face, drilling blade is the heliciform, rotationally be provided with the pivot in the sleeve, the pivot upper end stretches out the sleeve, the sleeve with the pivot passes through the lock axle locking and is connected, the pivot with drive assembly is connected, the pivot outside is provided with sampling blade, sampling blade is the heliciform. The invention can accurately sample the soil with the set depth, avoid pollution caused by the soil outside the set range to influence the detection accuracy, ensure the sampling precision and sample the deeper soil layer.
Description
Technical Field
The invention relates to the field of soil sampling, in particular to a soil sampling system and a soil sampling method for setting a layer depth.
Background
On one hand, with popularization of environmental awareness, soil improvement and protection items are more and more, soil safety has become an important index of environmental pollution, soil quality needs to be detected regularly to ensure the soil safety, on the other hand, with development of agricultural technology, soil quality detection is needed to be carried out accurately according to local conditions, and proper crop varieties and planting methods are selected according to soil conditions before planting corresponding crops; this all requires separate sampling of soil at different depths according to the detection requirements.
In the prior art, soil is generally intercepted and sampled through a sampling device, the sampling device comprises a driving assembly, a sampling sleeve and an electric telescopic rod, a detector generally scans the floating soil in a region to be detected and samples the floating soil, after the length of the telescopic rod is adjusted, the sleeve is penetrated into a corresponding soil layer position through the driving assembly, the soil in the sleeve is directly intercepted, then the soil in the sleeve is stripped, meanwhile, the distribution of sampling points is also taught, the sampling points are not punched in a large land conveniently, the sampling points are generally divided into a diagonal distribution method, a quincuncial distribution method, a checkerboard distribution method and a snake-shaped distribution method, the points cannot be close to each other, the distribution of the points cannot be sparse, and in general, the distribution of the sampling points is not less than 5 points per 100 hectares.
However, the method of intercepting a soil sample through a sampling cannula has the following disadvantages:
1. the sampling sleeve always takes out the soil outside the set depth range, when the sample is stripped, the soil in other depth ranges is difficult to separate, the soil sample with the set depth is easy to pollute, the soil sample with the set depth range is difficult to realize pollution-free sampling, and the detection accuracy is difficult to be influenced;
2. when the soil of deeper layer is sampled, it is great to mean that the degree of depth that stretches into soil of sleeve pipe and telescopic link, and the frictional force of pipe wall and soil increases along with the degree of depth increase, surpasses the rated load of motor easily, influences the life of equipment.
Disclosure of Invention
In order to solve the problems that in the prior art, accurate pollution-free sampling is difficult to perform on set layer depth and deeper soil is difficult to sample, the invention provides a soil sampling system and a soil sampling method for the set layer depth, which can accurately sample the soil with the set layer depth, avoid pollution caused by the soil outside a set range, influence detection accuracy, ensure sampling precision and sample the deeper soil layer.
The technical scheme adopted by the invention for solving the technical problems is as follows: the utility model provides a soil sampling system for setting for layer is dark, includes the stand, be provided with the mounting panel on the stand, be provided with drive assembly on the mounting panel, drive assembly is connected with soil sampling assembly, soil sampling assembly includes the sleeve, telescopic upper end is provided with the collecting tray, be provided with drilling blade on the sleeve outer circumference, drilling blade is the heliciform, rotationally be provided with the pivot in the sleeve, the pivot upper end stretches out the sleeve, the sleeve with the pivot passes through the lock axle locking and is connected, the pivot with drive assembly connects, the pivot outside is provided with sampling blade, sampling blade is the heliciform. Through the cooperation of sleeve and pivot, can realize drilling earlier and then take a sample the mode, on the one hand can get the soil sample of arbitrary degree of depth, on the other hand, owing to telescopic formation isolation effect after stretching into the soil layer, can avoid the pollution of the soil of other degree of depth, guarantee the sampling accuracy, the inspection is accurate.
Further, the lower end of the sleeve is provided with a drill bit, the drill bit is of a hollow structure, and the rotating shaft can extend out of the drill bit. The drill bit can reduce the drilling difficulty of the sleeve, and is suitable for soil layers with higher hardness.
Further, the telescopic upper end is provided with the collecting tray, be provided with the hourglass soil groove on the collecting tray, the collecting tray below can be dismantled and be connected with disposable collecting bag, disposable collecting bag with it sets up relatively to leak the soil groove, disposable collecting bag centers on the sleeve. Through the cooperation of collecting bag and collecting tray, can directly accomplish the collection to the sample in the sample, convenient to use to adopt disposable collecting bag, can avoid the possibility that the soil sample of different degree of depth pollutes.
Further, still include the locomotive, the locomotive articulates there is the linking arm, the linking arm articulates with the piston rod of support hydro-cylinder, the cylinder body of support hydro-cylinder is connected with the swing arm, the swing arm rotationally sets up on the locomotive, the linking arm is connected with the stand. Through the cooperation of linking arm, support hydro-cylinder and swing arm, can adjust the inclination of stand, avoid at the removal in-process, stand and other objects on ground produce the interference of colliding with, cause the damage of equipment, simultaneously, can adapt to the topography that has the slope, guarantee drilling direction and ground are perpendicular, reduce the influence of drilling resistance to equipment life.
Further, the connecting arms, the supporting oil cylinders and the swing arms are respectively provided with two, a cross beam is arranged between the two connecting arms, an adjusting oil cylinder is hinged to the cross beam, a piston rod of the adjusting oil cylinder is hinged to an adjusting plate, two ends of the adjusting plate are hinged to the corresponding connecting arms, and the adjusting plate is detachably connected with the stand column. The angle of the upright post can be further adjusted through the cross beam, the adjusting oil cylinder and the adjusting plate, and the angle adjusting range of the upright post is enlarged.
Further, the mobile terminal is characterized in that a supporting seat is arranged below the upright post, the supporting seat is of a U-shaped structure, and the opening direction of the supporting seat is consistent with the advancing direction of the mobile vehicle. Can strengthen the stability of stand through the supporting seat, the centrifugal force that produces when avoiding rotary drum and pivot to rotate rocks the effect.
Further, a driving motor is arranged on the upper portion of the upright post, and the driving motor is connected with the mounting plate through a screw rod.
Further, the mobile vehicle comprises a control device, the control device is electrically connected with an input device and a display device, a rotary encoder is arranged on the driving assembly, the rotary encoder is electrically connected with the control device, and the supporting oil cylinder, the adjusting oil cylinder and the driving motor are electrically connected with the control device. The automatic level of sampling is improved through the control device and the input device, and the working efficiency is improved.
Further, the control device comprises a navigation module, a plurality of sampling routes and sampling point positions are stored in the control device, and the control device can control the mobile vehicle to move according to the selected route. The accurate sampling path that selects is removed according to the effect that can realize through navigation module and controlling means, has promoted the accuracy of sample, has guaranteed the accuracy of soil property detection.
The invention also provides a soil sampling method for setting the layer depth, which uses the soil sampling system for setting the layer depth and comprises the following steps:
s01: selecting a sleeve and a rotating shaft with proper lengths according to the requirement of sampling depth, assembling the sleeve and the rotating shaft together, and then connecting the sleeve and the rotating shaft with a driving assembly;
s02: selecting a suitable sampling route through an input device;
s03: adjusting the inclination angle of the upright post to enable the supporting seat to be attached to the ground;
s04: driving the sleeve to rotate for drilling until the sleeve reaches the set depth of the sleeve;
s05: separating the sleeve from the rotating shaft, and independently rotating the rotating shaft to sample until the rotating shaft reaches the set depth of the rotating shaft;
s06: disassembling the disposable collecting bag, marking for storage, and replacing the disposable collecting bag;
s07: cycling through S04 to S06 until sampling of samples at all set depths at this location is complete;
s08: the inclination angle of the upright post is adjusted, so that the upright post is prevented from interfering with the ground and objects on the ground when the mobile vehicle moves;
s09: the mobile vehicle moves to the next sampling point;
s10: and (S03) to S09 are circulated until all sampling points on the sampling route are completely sampled.
By the method, the samples are not polluted by other deep soil during sampling, sampling is guaranteed to be strictly carried out according to a sampling route and sampling points, the accuracy of soil sample sampling is improved, and the accuracy of detection results is guaranteed.
From the above technical scheme, the invention has the following advantages:
the scheme provides a soil sampling system and a soil sampling method for setting the depth of a layer, through the cooperation of a sleeve and a rotating shaft, a mode of drilling and then sampling can be realized, on one hand, a soil sample with any depth can be taken, and on the other hand, as the sleeve stretches into the soil layer to form an isolation effect, the pollution of soil with other depths can be avoided, the sampling precision is ensured, and the inspection is accurate; the drill bit can reduce the drilling difficulty of the sleeve, and is suitable for soil layers with higher hardness; through the cooperation of the collecting bag and the collecting disc, the sample can be directly collected while the sample is sampled, the use is convenient, and the disposable collecting bag is adopted, so that the possibility of soil sample pollution with different depths can be avoided; through the cooperation of the connecting arm, the supporting oil cylinder and the swing arm, the inclination angle of the stand column can be adjusted, collision interference between the stand column and other objects on the ground in the moving process is avoided, equipment is damaged, meanwhile, the device can adapt to terrains with slopes, the drilling direction is ensured to be vertical to the ground, and the influence of drilling resistance on the service life of the equipment is reduced; the angle of the upright post can be further adjusted through the cross beam, the adjusting oil cylinder and the adjusting plate, so that the angle adjusting range of the upright post is enlarged; the stability of the stand column can be enhanced through the supporting seat; the control device and the input device are used for improving the automation level of sampling and the working efficiency; the accurate sampling path that selects is removed according to the effect that can realize through navigation module and controlling means, has promoted the accuracy of sample, has guaranteed the accuracy of soil property detection.
Drawings
In order to more clearly illustrate the technical solutions of the present invention, the drawings that are needed in the description will be briefly introduced below, it being obvious that the drawings in the following description are only some embodiments of the present invention, and that other drawings can be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic structural diagram of a first embodiment of the present invention.
Fig. 2 is a schematic view showing an assembly structure of a collecting tray, a disposable collecting bag, a drill, a rotary shaft and a sleeve according to a first embodiment of the present invention.
In the figure, 1, a moving vehicle, 2, a control device, 3, a swing arm, 4, a supporting oil cylinder, 5, a connecting arm, 6, an adjusting oil cylinder, 7, an adjusting plate, 8, an upright post, 9, a driving motor, 10, a screw rod, 11, a driving component, 12, a collecting disc, 13, a rotating shaft, 14, a locking shaft, 15, a sleeve, 16, a drill bit, 17, a supporting seat, 18, a mounting plate, 19, a disposable collecting bag, 20 and a soil leakage groove.
Detailed Description
In order to make the objects, features and advantages of the present invention more obvious and understandable, the technical solutions of the present invention will be clearly and completely described below with reference to the drawings in this specific embodiment, and it is apparent that the embodiments described below are only some embodiments of the present invention, but not all embodiments of the present invention. All other embodiments, based on the embodiments in this patent, which would be within the purview of one of ordinary skill in the art without the particular effort to make the invention are intended to be within the scope of the patent protection.
Detailed description of the preferred embodiments
As shown in fig. 1 to 2, the present embodiment provides a soil sampling system for setting a depth of a layer, comprising a moving vehicle 1, a column 8, a mounting plate 18 and a soil sampling assembly; the upright post 8 is provided with a chute, one end of the mounting plate 18 is provided with a sliding block, the sliding block can move in the chute, the upper part of the upright post 8 is provided with a driving motor 9, the driving motor 9 is connected with the mounting plate 18 through a screw rod 10, and the driving motor 9 can drive the mounting plate 18 to move up and down; the soil sampling device comprises a mounting plate 18, a driving assembly 11 is arranged on the mounting plate, the driving assembly 11 comprises a servo motor and a speed reducer, an output shaft of the speed reducer is connected with a soil sampling assembly, the soil sampling assembly comprises a sleeve 15, in order to reduce drilling resistance, drilling blades are arranged on the outer circumferential surface of the sleeve 15, the drilling blades are in a spiral shape, a rotating shaft 13 is rotatably arranged in the sleeve 15, the upper end of the rotating shaft 13 extends out of the sleeve 15 and is connected with the output shaft of the speed reducer through a coupling, the length of the rotating shaft 13 is larger than that of the sleeve 15, in order to be suitable for drilling in a harder soil layer, a drill bit 16 is arranged at the lower end of the sleeve 15, the drill bit 16 is in a hollow structure, the rotating shaft 13 can extend out of the drill bit 16, the rotating shaft 13 and the sleeve 15 can be driven by the servo motor and the driving motor 9 to reciprocate along the length direction of a stand column 8, the sleeve 15 and the rotating shaft 13 are connected in a locking mode through a locking shaft 14, locking pins are inserted at two ends of the locking shaft 14, after the locking shaft 14 is removed, the rotating shaft 13 can be independently rotated and moves up and down, in order to realize sample conveying and collecting, sampling blades are arranged outside the rotating shaft 13, and the sampling blades are in a spiral shape; through the cooperation of the sleeve 15 and the rotating shaft 13, the mode of drilling at the sampling point and then sampling can be realized, the sleeve 15 is utilized to realize the isolation from other soil, the mixing pollution of the soil generated by the rotating shaft 13 during sampling is avoided, the sampling effect is influenced, and meanwhile, the soil with any set layer depth can be obtained through the rotating shaft 13; in order to meet the requirement of deeper sampling, the rotating shaft 13 can also be connected with a telescopic rod, and the telescopic rod is connected with a speed reducer.
In order to collect the mined samples conveniently, a collecting tray 12 is welded at the upper end of a sleeve 15, a soil leakage groove 20 is formed in the collecting tray 12, a disposable collecting bag 19 is arranged below the collecting tray 12, a hanging ring is arranged on the collecting tray 12 and connected with the disposable collecting bag 19 through a rope, the disposable collecting bag 19 is arranged opposite to the soil leakage groove 20, and the disposable collecting bag 19 surrounds the sleeve 15; the use is convenient, and the possibility of soil sample pollution at different depths can be avoided by adopting the disposable collecting bag 19.
In order to drill holes, the sleeve 15 is perpendicular to the ground, so that the sleeve 15 can be favorably balanced in stress, particularly when deep holes are drilled, the sleeve has a remarkable effect of guaranteeing stress balance and reducing shaking, and in order to realize perpendicular drilling on the ground with gradient, the following connecting structure is specifically adopted by the mobile vehicle 1 and the upright post 8: the two sides of the moving vehicle 1 are hinged with connecting arms 5, the connecting arms 5 are hinged with piston rods of supporting oil cylinders 4, the cylinder bodies of the supporting oil cylinders 4 are connected with swinging arms 3, the swinging arms 3 are rotatably arranged on the moving vehicle 1, the swinging arms 3 are connected with servo motors, the swinging arms 3 are swung through the servo motors, the rotation of the connecting arms 5 is realized by combining the telescopic action of the supporting oil cylinders 4, in order to further enlarge the adjusting range of the stand column 8, a cross beam is arranged between the two connecting arms 5, an adjusting oil cylinder 6 is hinged on the cross beam, the piston rods of the adjusting oil cylinders 6 are hinged with adjusting plates 7, two ends of the adjusting plates 7 are hinged with the corresponding connecting arms 5, the adjusting plates 7 are detachably connected with the stand column 8, supporting seats 17 are arranged below the stand column 8, the supporting seats 17 are of U-shaped structures, the opening directions of the supporting seats 17 are consistent with the advancing direction of the moving vehicle 1, and the supporting seats 17 can provide stable support to further reduce the swinging of the stand column 8; thus, vertical drilling can be realized on the ground with gradient, stress balance is ensured, the service life of the equipment is prolonged, and the device is suitable for various terrains; by adopting such a connection form, the column 8 can be adjusted to a horizontal state for transportation, reducing collision interference with other objects.
In order to improve the automation level and the accuracy of sampling, the mobile vehicle 1 comprises a control device 2, wherein the control device 2 is electrically connected with an input device and a display device, the input device is a knob, the display device adopts a touch display screen, a driving assembly 11 is provided with a rotary encoder, the rotary encoder is electrically connected with the control device 2, and a support oil cylinder 4, an adjustment oil cylinder 6 and a driving motor 9 are electrically connected with the control device 2; the control device 2 comprises a navigation module, a plurality of sampling routes and sampling point positions are stored in the control device 2, and the control device 2 can control the mobile vehicle 1 to move according to the selected route.
Detailed description of the preferred embodiments
The present embodiment provides a soil sampling method for setting a depth of a layer, using the soil sampling system for setting a depth of a layer in the first embodiment, comprising the steps of:
s01: selecting a sleeve 15 and a rotating shaft 13 with proper lengths according to the requirement of sampling depth, assembling the sleeve 15 and the rotating shaft 13 together, and then connecting the sleeve 15 and the rotating shaft 13 with a driving assembly 11;
s02: selecting a suitable sampling route through an input device;
s03: the inclination angle of the upright post 8 is adjusted to enable the supporting seat 17 to be attached to the ground;
s04: driving the sleeve 15 to rotate for drilling until the sleeve 15 reaches the set depth of the sleeve 15;
s05: the sleeve 15 is separated from the rotating shaft 13, and the rotating shaft 13 is independently rotated to sample until the rotating shaft 13 reaches the set depth of the rotating shaft 13;
s06: the disposable collecting bag 19 is disassembled, marked and stored, and a new disposable collecting bag 19 is replaced;
s07: cycling through S04 to S06 until sampling of samples at all set depths at this location is complete;
s08: the inclination angle of the upright post 8 is adjusted, so that the upright post 8 does not interfere with the ground and objects on the ground when the mobile vehicle 1 moves;
s09: the mobile vehicle 1 moves to the next sampling point;
s10: and (S03) to S09 are circulated until all sampling points on the sampling route are completely sampled.
The set depth of the sleeve 15 is smaller than the set depth of the rotating shaft 13, and the descending depths of the sleeve 15 and the rotating shaft 13 can be obtained by a rotary encoder on the servo motor and transmitted to the control device 2, and when the control device 2 detects that the corresponding set depth is reached, the descending is stopped, and a prompt is sent out through the display device.
By the method, the samples are not polluted by other deep soil during sampling, sampling is guaranteed to be strictly carried out according to a sampling route and sampling points, the accuracy of soil sample sampling is improved, and the accuracy of detection results is guaranteed.
From the above detailed description, it can be seen that the present invention has the following advantages:
1. through the cooperation of sleeve 15 and pivot 13, can realize drilling earlier and then take a sample the mode, on the one hand can get the soil sample of arbitrary degree of depth, on the other hand, because the sleeve 15 stretches into behind the soil layer and forms an isolation effect, can avoid the pollution of soil of other degree of depth, guarantee sampling accuracy, inspection accuracy; the drilling difficulty of the sleeve 15 can be reduced through the drill bit 16, and the drill bit is suitable for soil layers with higher hardness;
2. the collection bag 19 and the collection tray 12 are matched, so that the collection of samples can be directly completed while the samples are sampled, the use is convenient, and the disposable collection bag 19 is adopted, so that the possibility of soil sample pollution at different depths can be avoided;
3. through the cooperation of the connecting arm 5, the supporting oil cylinder 4 and the swing arm 3, the inclination angle of the upright post 8 can be adjusted, collision interference between the upright post 8 and other objects on the ground in the moving process is avoided, equipment is damaged, meanwhile, the device can adapt to the terrains with gradient, the drilling direction is ensured to be vertical to the ground, and the influence of drilling resistance on the service life of the equipment is reduced;
4. the angle of the upright post 8 can be further adjusted through the cross beam, the adjusting oil cylinder 6 and the adjusting plate 7, so that the angle adjusting range of the upright post 8 is enlarged;
5. the stability of the upright post 8 can be enhanced through the supporting seat 17;
6. the control device 2 and the input device are used for improving the automation level of sampling and the working efficiency;
7. the accurate movement according to the selected sampling path can be realized through the functions of the navigation module and the control device 2, the accuracy of sampling is improved, and the accuracy of soil quality detection is ensured.
The terms "upper," "lower," "outboard," "inboard," and the like in the description and in the claims of the invention and in the above figures, if any, are used for distinguishing between relative relationships in position and not necessarily for giving qualitative sense. It is to be understood that the data so used may be interchanged where appropriate such that the embodiments of the invention described herein may be implemented in sequences other than those illustrated or otherwise described herein. Furthermore, the terms "comprise" and "have," as well as any variations thereof, are intended to cover a non-exclusive inclusion.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (4)
1. The soil sampling method for setting the layer depth is characterized by comprising a soil sampling system for setting the layer depth, wherein the soil sampling system for setting the layer depth comprises a stand column (8), a mounting plate (18) is arranged on the stand column (8), a driving assembly (11) is arranged on the mounting plate (18), the driving assembly (11) is connected with the soil sampling assembly, the soil sampling assembly comprises a sleeve (15), drilling blades are arranged on the outer circumferential surface of the sleeve (15), the drilling blades are spiral, a rotating shaft (13) is rotatably arranged in the sleeve (15), the upper end of the rotating shaft (13) extends out of the sleeve (15), the sleeve (15) is connected with the rotating shaft (13) in a locking manner through a locking shaft (14), the rotating shaft (13) is connected with the driving assembly (11), sampling blades are arranged outside the rotating shaft (13), and the sampling blades are spiral; the lower end of the sleeve (15) is provided with a drill bit (16), the drill bit (16) is of a hollow structure, and the rotating shaft (13) can extend out of the drill bit (16); the device also comprises a moving vehicle (1), wherein the moving vehicle (1) is hinged with a connecting arm (5), the connecting arm (5) is hinged with a piston rod of a supporting oil cylinder (4), a cylinder body of the supporting oil cylinder (4) is connected with a swing arm (3), the swing arm (3) is rotatably arranged on the moving vehicle (1), and the connecting arm (5) is connected with a stand column (8); the movable trolley comprises connecting arms (5), supporting oil cylinders (4) and swing arms (3), wherein two cross beams are arranged between the two connecting arms (5), an adjusting oil cylinder (6) is hinged to the cross beams, a piston rod of the adjusting oil cylinder (6) is hinged to an adjusting plate (7), two ends of the adjusting plate (7) are hinged to the corresponding connecting arms (5), the adjusting plate (7) is detachably connected with a stand column (8), a collecting disc (12) is arranged at the upper end of a sleeve (15), a soil leakage groove (20) is formed in the collecting disc (12), a disposable collecting bag (19) is detachably connected below the collecting disc (12), the disposable collecting bag (19) is arranged opposite to the soil leakage groove (20), the disposable collecting bag (19) surrounds the sleeve (15), a supporting seat (17) is arranged below the stand column (8), the supporting seat (17) is of a U-shaped structure, and the opening direction of the supporting seat (17) is consistent with the advancing direction of the movable trolley (1);
the method comprises the following steps:
s01: selecting a proper sleeve and a proper rotating shaft according to the requirement of the sampling depth, assembling the sleeve and the rotating shaft together, and then connecting the sleeve and the rotating shaft with a driving assembly;
s02: selecting a proper sampling route;
s03: adjusting the inclination angle of the upright post to enable the supporting seat to be attached to the ground;
s04: driving the sleeve to rotate for drilling until the sleeve reaches the set depth of the sleeve;
s05: separating the sleeve from the rotating shaft, and independently rotating the rotating shaft to sample until the rotating shaft reaches the set depth of the rotating shaft;
s06: disassembling the disposable collecting bag, marking for storage, and replacing the disposable collecting bag;
s07: cycling through S04 to S06 until sampling of samples at all set depths at this location is complete;
s08: the inclination angle of the upright post is adjusted, so that the upright post is prevented from interfering with the ground and objects on the ground when the mobile vehicle moves;
s09: the mobile vehicle moves to the next sampling point;
s10: and (S03) to S09 are circulated until all sampling points on the sampling route are completely sampled.
2. The soil sampling method for setting a depth of a layer according to claim 1, wherein a driving motor (9) is arranged at the upper part of the upright post (8), and the driving motor (9) is connected with a mounting plate (18) through a screw (10).
3. The soil sampling method for setting a depth of a layer according to claim 2, wherein the mobile vehicle (1) comprises a control device (2), the control device (2) is electrically connected with an input device and a display device, a rotary encoder is arranged on a driving assembly (11), the rotary encoder is electrically connected with the control device (2), and a supporting oil cylinder (4), an adjusting oil cylinder (6) and a driving motor (9) are electrically connected with the control device (2).
4. A soil sampling method for setting a depth of layer according to claim 3, characterized in that the control device (2) comprises a navigation module, a plurality of sampling routes and sampling point positions are stored in the control device (2), and the control device (2) can control the mobile vehicle (1) to move according to the selected route.
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