CN116429487A - Sampling device and sampling method for detecting organic carbon distribution of plain soil - Google Patents

Sampling device and sampling method for detecting organic carbon distribution of plain soil Download PDF

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Publication number
CN116429487A
CN116429487A CN202310411713.6A CN202310411713A CN116429487A CN 116429487 A CN116429487 A CN 116429487A CN 202310411713 A CN202310411713 A CN 202310411713A CN 116429487 A CN116429487 A CN 116429487A
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soil
platform
bucket
digging
layer pipe
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郑存德
丛培东
郑修实
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Eastern Liaoning University
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Eastern Liaoning University
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    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N1/00Sampling; Preparing specimens for investigation
    • G01N1/02Devices for withdrawing samples
    • G01N1/04Devices for withdrawing samples in the solid state, e.g. by cutting
    • G01N1/08Devices for withdrawing samples in the solid state, e.g. by cutting involving an extracting tool, e.g. core bit

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  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
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  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
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  • Pathology (AREA)
  • Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)

Abstract

The sampling device for detecting the organic carbon distribution of the soil in the plain area comprises a frame and a digging component, wherein the sampling device is installed in the digging component in a telescopic manner through a digging bucket, and can move the digging bucket to a target depth and accurately obtain a soil sample of the target depth. The auger elevator that sets up in the middle of the inlayer pipe cooperation digs the bucket and can in time carry soil to ground. Due to the cooperation of the excavating bucket and the auger elevator, all soil in the range involved by the excavating bucket can be collected after the excavating bucket extends to the maximum extent, the soil collection amount is huge, and the non-common drill pipe is comparable to the collection. The device can recover the excavating bucket and move the excavating component to other target depths, so that the excavating bucket can collect a large amount of soil at different soil layer depths. Through the cooperation of auger, the in-process that different soil layers were gathered and are switched can fully empty the inside soil of lifting machine, avoid last collection stage's soil to remain.

Description

Sampling device and sampling method for detecting organic carbon distribution of plain soil
Technical Field
The invention relates to the technical field of agriculture, in particular to a sampling device for detecting organic carbon distribution of soil in a plain area and a sampling method thereof.
Background
Soil organic carbon is a combination of humus, animal and plant residues and microorganisms formed by the action of microorganisms. The first type of equipment, generally soil sampling, is carried out by running the target soil on the ground through a drilling device, leaving the soil after running the soil, and taking out the soil sample at the target depth after the soil is lifted out of the ground through a pipe body.
For example, chinese patent: an undisturbed peat sampling device (publication No. CN 218067139U) can realize undisturbed peat sample so as to perform assay test analysis, so that the calculation of the organic carbon reserves can be accurately performed, and comprises a percussion drill, a joint and a sampling drilling tool, wherein the lower end output end of the percussion drill is connected with a piston impactor, the top end of the joint can extend into the piston impactor, the bottom end of the joint is connected with the sampling drilling tool, the joint is detachably connected with the piston impactor and the sampling drilling tool, and the percussion drill can drive a piston in the piston impactor to impact the joint; the joint is used for driving the sampling drilling tool to rotate for sampling through rotation. The device is the first device described above, but the capacity to remove samples depends only on the diameter of the sampling drill, and the soil at the target depth after exiting the soil is easily confused with the soil at other locations, the soil at the target depth is not easily and accurately obtained, and it is difficult to obtain a large amount of soil at the target depth.
Disclosure of Invention
In order to solve the problems, the invention provides a sampling device for detecting the organic carbon distribution of the soil in a plain area, which can accurately submerge to the depth of a target stratum to obtain the soil with the target depth, has large obtaining amount and is not doped after each stratum soil is obtained. In addition, the invention also provides a sampling method for detecting the organic carbon distribution of the soil in the plain area.
In order to achieve the above purpose, the invention adopts the following technical scheme:
in a first technical scheme, the sampling device for detecting the organic carbon distribution of the soil in the plain area comprises a frame and a digging component, wherein
The rack comprises a lifting driving mechanism and a lifting platform driven by the lifting driving mechanism;
the digging assembly comprises an inner layer pipe, an outer layer pipe, a supporting platform, a rotating pipe, a platform assembly, a switching sealing door, a digging bucket, an auger lifting machine and a connecting pipe, wherein the top of the outer layer pipe is fixedly connected to the lower part of the lifting platform, the inner layer pipe is arranged in the outer layer pipe, the inner layer pipe and the outer layer pipe are coaxially arranged, the supporting platform is arranged between the inner layer pipe and the outer layer pipe and is close to the lower end, an annular opening is formed in the position, close to the upper surface of the supporting platform, of the outer layer pipe, the rotating pipe is arranged in a cavity between the inner layer pipe and the outer layer pipe and is positioned above the supporting platform, the rotating pipe is connected with the inner layer pipe and/or the outer layer pipe through a bearing, the platform assembly is fixedly connected to the lower end of the rotating pipe, the digging bucket can horizontally rotate and is hinged to the platform assembly, the digging bucket is opposite to the horizontal position of the annular opening, and the platform assembly is further provided with a driving assembly for driving the digging bucket to rotate and extend out of the annular opening; the platform assembly is provided with a hollow area, the switching sealing door is arranged in the hollow area, the lower part of the excavating bucket is opened and faces the hollow area, the supporting platform is provided with a soil inlet hollow opening, the inner layer pipe is positioned below the supporting platform and is provided with an opening, and the opening is connected with the soil inlet hollow opening through a connecting pipe; the lifting platform is provided with a second driving device for driving the rotating pipe to rotate; the auger elevator comprises auger blades which are inversely inserted into the inner layer pipe and extend to the lower end of the inner layer pipe.
In a first aspect, preferably, the platform assembly includes an upper platform and a lower platform, the digger bucket is hinged between the upper platform and the lower platform through a rotation shaft, and an opening of a cavity between the upper platform and the lower platform is opposite to the annular opening.
In the first technical scheme, as the preference, the excavation is outside side direction opening, and the back of the excavation main part is installed and is fighted the drive ring gear, be provided with drive gear between lower platform and the upper platform, drive gear passes through the bearing and rotates the union coupling, and lower platform still is equipped with actuating mechanism and drive gear, actuating mechanism's power end connection drive gear, drive gear with driven gear meshing, driven gear and excavation fight drive ring gear meshing to drive gear rotates and stretches out annular opening.
In a first aspect, preferably, the excavating bucket is an outer side lateral opening, and the lower platform further has a linear driving mechanism, and the linear driving mechanism is connected to the inner side of the excavating bucket through a torsion spring, so as to drive the excavating bucket to rotate and extend out of the annular opening.
In the first technical scheme, preferably, the number of the digging hoppers is 2-3, and the height of the digging hoppers is arranged at equal included angle intervals.
In the first technical scheme, as an optimization, an auger shaft is arranged in the middle of the auger blade, the lower end of the auger shaft is rotatably connected with the inner layer pipe through an auger shaft support and an auger shaft bearing, and the auger shaft support is a local hollowed-out support.
In the first technical scheme, preferably, a hemispherical guiding head is arranged below the outer layer tube, and a soil leakage opening is formed in the lower end of the guiding head.
In the first technical scheme, as an optimization, a sliding door triggering mechanism is arranged at a position, close to the front side of the soil inlet hollow opening in the rotating direction of the platform assembly, of the top surface of the supporting platform, the sliding door triggering mechanism comprises a rotating key and a plate spring, a groove is formed in the supporting platform, the lower part of the rotating key is hinged in the groove through a rotating shaft, and the plate spring is abutted against the rotating key and the supporting platform and keeps upright through an elastic supporting rotating key;
the utility model discloses a platform subassembly is characterized by comprising a platform subassembly hollow area, a step groove has been seted up to the inside wall in platform subassembly hollow area, switch closure door package main part is the sliding door that the level set up, and the afterbody of sliding door has the backplate, and the bottom plate the place ahead of sliding door is equipped with triggers the arch, backplate slidable installs in the step groove, the inside reset spring that is equipped with in step hole, reset spring's both ends butt respectively at the tank bottom in step groove and backplate.
In a second technical aspect, a sampling method for detecting organic carbon distribution in plain soil, using the sampling device for detecting organic carbon distribution in plain soil described in the first technical aspect, comprises the steps of,
step 1, drilling holes in the ground, wherein the drilling depth is not lower than the target depth of a soil acquisition position, the excavating bucket can be opposite to the soil with the target depth, and the sampling device for detecting the organic carbon distribution of the soil in the plain area is moved to the drilling position;
step 2, driving the digging assembly into the drill hole to a target depth through the lifting driving mechanism, enabling the digging bucket to be opposite to soil with the target depth, enabling the digging bucket to extend out of the outer layer pipe through the annular opening through the driving assembly and dig the soil with the target depth, storing the soil in the digging bucket, switching the closed door to open when the digging bucket passes through the soil inlet hollow opening, throwing the soil in the digging bucket into the auger elevator through the soil inlet hollow opening and the connecting pipe, and lifting the soil to the ground through the auger elevator;
and 3, after the soil with the target depth and a sufficient volume is obtained, recovering the digging bucket to enter the outer layer pipe, driving the digging assembly to vertically move and enabling the digging bucket to correspond to the next target depth, and repeating the step 2 until all the soil with the target depth is obtained, and moving the digging assembly out of the drill hole.
In the second embodiment, preferably, in step 3,
when the recovery excavating bucket enters the outer layer pipe and then drives the excavating component to vertically move and enables the excavating bucket to correspond to the time period of the next target depth, the auger lifter is switched to rotate reversely, so that the auger blades reversely rotate for a long time, and soil in the auger lifter is fully emptied.
The beneficial effects of using the invention are as follows:
1. the device is telescopically arranged in the digging component through the digging bucket, and can move the digging bucket to the target depth and accurately acquire the soil sample of the target depth.
2. The auger elevator that sets up in the middle of the inlayer pipe cooperation digs the bucket and can in time carry soil to ground.
3. Due to the cooperation of the excavating bucket and the auger elevator, all soil in the range involved by the excavating bucket can be collected after the excavating bucket extends to the maximum extent, the soil collection amount is huge, and the non-common drill pipe is comparable to the collection.
4. The device can recover the excavating bucket and move the excavating component to other target depths, so that the excavating bucket can collect a large amount of soil at different soil layer depths.
5. Through the cooperation of auger, the in-process that different soil layers were gathered and are switched can fully empty the inside soil of lifting machine, avoid last collection stage's soil to remain.
6. The switching closing door is skillfully designed, can be opened only when moved to the soil inlet hollow opening, and is reliable in structure and free of maintenance.
Drawings
FIG. 1 is an overall schematic diagram of a sampling device for detecting organic carbon distribution in plain soil according to the present invention.
Fig. 2 is a schematic view of the interior of the soil penetrating assembly according to the present invention.
FIG. 3 is a schematic top view of the bucket drive mechanism of the present invention.
Fig. 4 is a schematic view of a lower support device of the auger shaft in the present invention.
Fig. 5 is a schematic top view of the support platform according to the present invention.
FIG. 6 is a schematic view of the cooperation of the sliding door and the trigger mechanism according to the present invention.
FIG. 7 is a schematic representation of the brush position in the present invention.
Fig. 8 is a schematic view of a linear drive mechanism and torsion spring of the present invention.
The reference numerals include:
the device comprises a frame 10, a base 11, a hollow hole 12, a bracket 13, a driving screw 14, a guide rod 15, a first driving device 16 and a lifting platform 17;
20-earth-moving assembly, 21-probe tube, 211-inner tube, 212-outer tube, 213-annular opening, 214-guide head, 215-support platform, 2151-groove, 2152-positioning block, 216-earth-moving hollowed opening, 217-sliding door trigger mechanism, 2171-rotary key, 2172-bump, 2173-leaf spring, 221-second drive device, 222-rotary tube, 223-upper platform, 224-lower platform, 2241-drive gear, 2242-driven gear, 2243-lower platform hollowed area, 2244-step slot, 2245-return spring, 2246-sliding door, 22461-back plate, 22462-trigger protrusion, 225-excavating bucket, 2247-linear drive mechanism, 2248-torsion spring, 2251-spindle, 2252-excavating bucket drive ring gear, 226-brush, 23-auger hoist, 2311-auger shaft bracket, 2312-auger shaft bearing, 24-connecting tube, 30-container.
Detailed Description
In order to make the objects, technical solutions and advantages of the present technical solution more apparent, the present technical solution is further described in detail below in conjunction with the specific embodiments. It should be understood that the description is only illustrative and is not intended to limit the scope of the present technical solution.
Example 1
As shown in fig. 1, the invention provides a sampling device for detecting organic carbon distribution in plain soil, which comprises a frame 10 and a digging assembly 20, wherein the frame 10 comprises a lifting driving mechanism and a lifting platform 17 driven by the lifting driving mechanism.
In this embodiment, the frame 10 includes a base 11, the position of the base 11 corresponding to the projection of the soil digging component 20 is provided with a hollow hole 12, the hollow hole 12 is used for passing through the soil digging component 20, the side surface of the base 11 is provided with a support 13, the support 13 is in an L-shaped structure, a vertical driving screw 14 and a guide rod 15 are arranged between the support 13 and the base 11, the position of the lifting platform 17 corresponding to the driving screw 14 and the guide rod 15 is respectively provided with a threaded hole and a light hole, and the power end of the first driving device 16 is connected with the driving screw 14 to rotate so as to drive the lifting platform 17 to realize controllable vertical reciprocating motion through the guide of the guide rod 15.
In other embodiments, the lifting drive mechanism may be simply replaced by a linear drive mechanism 2247, such as a hydraulic mechanism, pneumatic mechanism, or electric cylinder mechanism, and linear drive of the lifting platform 17 and the soil penetrating assembly 20 may be achieved.
As shown in fig. 2, the soil digging component 20 is mounted on the lifting platform 17, the soil digging component 20 comprises an inner layer pipe 211, an outer layer pipe 212, a supporting platform 215, a rotating pipe 222, a platform component, a switching closing door, a digging bucket 225, an auger lifting machine 23 and a connecting pipe 24, wherein the top of the outer layer pipe 212 is fixedly connected to the lower part of the lifting platform 17, the inner layer pipe 211 is mounted inside the outer layer pipe 212, the inner layer pipe 211 and the outer layer pipe 212 are coaxially arranged, the supporting platform 215 is arranged between the inner layer pipe 211 and the outer layer pipe 212 and is close to the lower end, the supporting platform 215 is used for supporting and connecting the inner layer pipe 211 and the outer layer pipe 212, the outer layer pipe 212 is close to the upper surface of the supporting platform 215 and is provided with an annular opening 213, the rotating pipe 222 is mounted in a cavity between the inner layer pipe 211 and the outer layer pipe 212 and is positioned above the supporting platform 215, the rotating pipe 222 is connected with the inner layer pipe 211 and/or the outer layer pipe 212 through a bearing, the platform component is fixedly connected to the lower end of the rotating pipe 222, the digging bucket 225 is horizontally hinged on the platform component, the digging bucket 225 is opposite to the horizontal position of the annular opening 213, the horizontal position of the supporting platform 215 is also provided with a driving opening 213, which drives the annular opening 225 to rotate; the platform assembly is provided with a hollow area, the switching sealing door is arranged in the hollow area, the lower part of the excavating bucket 225 is opened and faces the hollow area, the supporting platform 215 is provided with a soil inlet hollow opening 216, the inner layer pipe 211 is provided with an opening at the lower position of the supporting platform 215, and the opening is connected with the soil inlet hollow opening 216 through a connecting pipe 24; the lifting platform 17 is provided with a second driving device 221 for driving the rotation pipe 222 to rotate; the auger elevator 23 includes auger blades that are inversely inserted into the inner tube 211 and extend to the lower end of the inner tube 211.
In use, the soil digging assembly 20 is driven by the lifting platform 17 to move downwards and enter the borehole, the probe tube 21 (comprising the inner layer tube 211 and the outer layer tube 212) is kept motionless, then the second driving device 221 drives the rotating tube 222 to rotate, the second driving device 221 and the rotating tube 222 can be driven by external tooth meshing, and the structure is similar to the transmission mechanism of the driving gear 2241 and the driven gear 2242 as follows. The rotation tube 222 rotates, which rotates the platform assembly and the bucket 225 on the platform assembly.
Preferably, a hemispherical guiding head 214 is arranged below the outer layer pipe 212, and a soil leakage opening is formed at the lower end of the guiding head 214, so that the soil digging assembly 20 is conveniently guided into a drill hole.
As shown in fig. 3, in the present embodiment, the platform assembly includes an upper platform 223 and a lower platform 224, and the excavating bucket 225 is hinged between the upper platform 223 and the lower platform 224 through a rotation shaft 2251, and an opening of a cavity between the upper platform 223 and the lower platform 224 is opposite to the annular opening 213. The excavating bucket 225 is an outer side opening, the back of the main body of the excavating bucket 225 is provided with an excavating bucket driving gear ring 2252, a driving gear 2241 is arranged between the lower platform 224 and the upper platform 223, the driving gear 2241 is rotationally connected with the rotating pipe 222 through a bearing, the lower platform 224 is also provided with a driving mechanism and a driving gear 2241, the power end of the driving mechanism is connected with the driving gear 2241, the driving gear 2241 is meshed with a driven gear 2242, and the driven gear 2242 is meshed with the excavating bucket driving gear ring 2252 so as to drive the driving gear 2241 to rotate and extend out of the annular opening 213. After the excavating bucket 225 seeps out of the annular opening 213, the excavating bucket 225 excavates the soil of the drilling target depth, the soil remains inside the excavating bucket 225, the lower portion of the excavating bucket 225 is provided with an opening, the position of the lower platform 224 corresponding to the excavating bucket 225 is provided with a lower platform hollow 2243, the area of the lower platform hollow 2243 and the width of the cross section are larger than the area of the opening of the lower portion of the excavating bucket 225, and therefore no matter what position the excavating bucket 225 rotates, the opening of the lower portion of the excavating bucket 225 is always opposite to the lower platform hollow 2243. Because the switching closure door in the lower platform hollowed-out area 2243 is not opened, soil remains in the excavating bucket 225 all the time, and when the excavating bucket 225 moves to the soil inlet hollowed-out opening 216, after the switching closure door is opened, the soil enters the inner layer pipe 211 through the soil inlet hollowed-out opening 216 and the connecting pipe 24, and is conveyed into the container 30 on the ground through the auger elevator 23.
In the above embodiment, the lower portion of the excavating bucket 225 is preferably in a shape with an opened outer side, the excavating bucket 225 is wide in top and narrow in bottom, and the outer wall of the excavating bucket 225 can be provided with a tooth structure to increase the excavating effect. Meanwhile, the lower end of the excavating bucket 225 is close to the top surface of the switching sealing door, a maze-like structure is formed, and the non-fluid characteristic of soil is combined, so that the soil is prevented from being spilled.
Preferably, there are 2-3 digging buckets 225, and the digging buckets 225 are arranged at equal angle intervals in height, so that the digging efficiency is improved, and meanwhile, the driving gear 2241 can drive a plurality of digging buckets 225 to synchronously extend or retract.
As shown in fig. 4, preferably, the middle part of the auger blade is provided with an auger shaft, the lower end of the auger shaft is rotatably connected with the inner layer pipe 211 through an auger shaft support 2311 and an auger shaft bearing 2312, the auger shaft support 2311 is a partially hollowed support 13, the functions of the auger shaft support 2311 and the auger shaft bearing 2312 are two, the first function is to serve as a lower support of the auger shaft, the second function is to facilitate the soil discharge of the auger lifter 23 from the area a, and the effect and the using method of the auger lifter 23 are described later.
As shown in fig. 5 and 6, the sliding door 2246 triggering mechanism 217 is arranged on the top surface of the supporting platform 215 near the front side of the soil inlet hollow opening 216 in the rotation direction of the platform assembly, the sliding door 2246 triggering mechanism 217 comprises a rotary key 2171 and a plate spring 2173, a groove 2151 is arranged on the supporting platform 215, the lower part of the rotary key 2171 is hinged in the groove 2151 through a rotation shaft, and the plate spring 2173 is abutted on the rotary key 2171 and the supporting platform 215 and keeps upright by the elastic supporting rotary key 2171; the step groove 2244 is formed in the inner side wall of the platform assembly hollow area, the sliding door 2246 is arranged horizontally in the switching closed door bag body, the rear part of the sliding door 2246 is provided with a back plate 22461, the triggering protrusion 22462 is arranged in front of the bottom plate of the sliding door 2246, the back plate 22461 is slidably arranged in the step groove 2244, a reset spring 2245 is arranged in the step hole, and two ends of the reset spring 2245 are respectively abutted to the bottom of the step groove 2244 and the back plate 22461.
When the excavating bucket 225 moves to the trigger mechanism 217 of the sliding door 2246, the trigger protrusion 22462 contacts the rotary key 2171, and the sliding door 2246 is driven to retract and move horizontally due to the support of the leaf spring 2173, and the back plate 22461 compresses the return spring 2245 until the back plate 22461 moves to the bottom of the first stage of the stepped slot 2244, during which the lower platform hollow 2243 is gradually opened and opposed to the soil inlet hollow opening 216. Due to the support of the bottom of the first stage of the step slot 2244, the rotation key 2171 rotates against the support of the plate spring 2173, and after the trigger protrusion 22462 passes over the rotation key 2171, the return spring 2245 pushes the sliding door 2246 to rapidly close the lower platform hollow area 2243, thereby completing the soil unloading of the excavating bucket 225. When there are a plurality of digging buckets 225, the plurality of digging buckets 225 discharge soil one by one at the soil-entering hollowed-out opening 216 when moving to the soil-entering hollowed-out opening 216.
Preferably, both the sliding door 2246 and the stepped slot 2244 have a curvature of movement to accommodate the rotation of the sliding door 2246. In addition, a positioning block 2152 is provided at the front of the rotary key 2171 to prevent the rotary key 2171 from being overturned forward excessively.
Example 2
As shown in fig. 8, this embodiment differs from embodiment 1 in that the driving device of the excavating bucket 225 is different.
The bucket 225 is laterally open on the outside, and the lower platform 224 also has a linear drive mechanism 2247, the linear drive mechanism 2247 being connected to the inside of the bucket 225 by a torsion spring 2248 to drive the bucket 225 to rotate and extend out of the annular opening 213. In this embodiment, the number of the excavating buckets 225 is preferably 1.
In this embodiment, the driving mode of the excavating bucket 225 is changed from rigid driving to flexible driving, which has the effect of avoiding hard objects of the excavating bucket 225, and simultaneously the excavating depth can be automatically adjusted by the torsion spring 2248, so as to avoid the blocking caused by the overlarge excavating depth.
Example 3
As shown in fig. 7, compared with embodiment 1, the difference is that the cleaning brush 226 made of elastic material is disposed at the bottom of the lower platform 224 and behind the hollow-out area 2243 of the upper and lower platforms in the rotation direction, the cleaning brush 226 is provided with a notch corresponding to the trigger mechanism 217 of the sliding door 2246, the cleaning brush 226 can sweep the spilled soil into the soil-entering hollow-out opening 216, and the rear width of the corresponding soil-entering hollow-out opening 216 is larger than the front width.
Example 4
In this embodiment, a sampling method for detecting the organic carbon distribution of the soil in the plain area is provided, and the sampling device for detecting the organic carbon distribution of the soil in the plain area according to any one of embodiment 1 to embodiment 3 is used, the sampling method comprising the steps of,
step 1, drilling holes on the ground, wherein the diameter of the drilled holes is consistent with the outer diameter of an outer layer pipe 212, and preferably, the rotary holes are formed by drilling a drilling tool with threads on the outside, the outer diameter of the outer layer pipe 212 is consistent with the diameter of the outer edge of the threads of the drilling tool, so that the outer wall of the outer layer pipe 212 can be abutted against the drilled holes, a probe pipe 21 is also stably installed in the drilled holes, the depth of the drilled holes is not lower than the target depth of a soil acquisition position, a digging bucket 225 can be opposite to the soil with the target depth, and a sampling device for detecting the organic carbon distribution of the soil in a plain area is moved to the drilling position;
step 2, driving the digging component 20 into the drill hole to a target depth through a lifting driving mechanism, enabling the digging bucket 225 to be opposite to soil with the target depth, enabling the digging bucket 225 to extend out of the outer layer pipe 212 through the annular opening 213 through the driving component, digging soil with the target depth, storing the soil in the digging bucket 225, switching a closed door to open when the digging bucket 225 passes through the soil inlet hollow opening 216, throwing the soil in the digging bucket 225 into the auger elevator 23 through the soil inlet hollow opening 216 and the connecting pipe 24, and lifting the soil to the ground through the auger elevator 23;
step 3, after the soil with the target depth and a sufficient volume is obtained, recovering the digging bucket 225 to enter the outer layer pipe 212, driving the digging component 20 to vertically move and enabling the digging bucket 225 to correspond to the next target depth, repeating the step 2 until all the soil with the target depth is obtained, and removing the digging component 20 from the drill hole.
Example 5
The sampling method for detecting the organic carbon distribution of the plain soil in this embodiment is based on embodiment 4, and is further optimized for one of the sampling methods for detecting the organic carbon distribution of the plain soil in embodiment 4.
In step 3, when the recovered digger 225 enters the outer layer pipe 212 and the digger assembly 20 is driven to move vertically and the digger 225 is driven to correspond to the next target depth, the rotation of the auger elevator 23 is switched to reverse, so that the auger blade rotates reversely for a long enough time to drain the soil inside the auger elevator 23 fully.
Example 6
The sampling method for detecting the organic carbon distribution of the plain soil in this embodiment is based on embodiment 3, and is further optimized for the sampling method for detecting the organic carbon distribution of the plain soil in embodiment 3, and the sampling device for detecting the organic carbon distribution of the plain soil in embodiment 1 is used for the sampling method for detecting the organic carbon distribution of the plain soil in this embodiment.
In this embodiment, since the excavating bucket 225 is rigidly driven to be unfolded, the rotation speed of the rotation tube 222 is set to be 2-3 circles per minute, and the driving mechanism of the driving gear 2241 is a servo driving mechanism, the excavating bucket 225 is extended to be 5-10 mm deep each time in the process of unfolding the excavating bucket 225, so that the excavating bucket 225 is prevented from being blocked due to overlarge deep depth.
The projection 2172 is provided on the back plate 22461 of the rotary key 2171 for abutting against the upper end of the plate spring 2173.
The foregoing is merely exemplary of the present invention, and those skilled in the art can make many variations in the specific embodiments and application scope according to the spirit of the present invention, as long as the variations do not depart from the spirit of the invention.

Claims (10)

1. Sampling device is used in plain district soil organic carbon distribution detection, its characterized in that: comprising a frame and a digging component, wherein
The rack comprises a lifting driving mechanism and a lifting platform driven by the lifting driving mechanism;
the digging assembly comprises an inner layer pipe, an outer layer pipe, a supporting platform, a rotating pipe, a platform assembly, a switching sealing door, a digging bucket, an auger lifting machine and a connecting pipe, wherein the top of the outer layer pipe is fixedly connected to the lower part of the lifting platform, the inner layer pipe is arranged in the outer layer pipe, the inner layer pipe and the outer layer pipe are coaxially arranged, the supporting platform is arranged between the inner layer pipe and the outer layer pipe and is close to the lower end, an annular opening is formed in the position, close to the upper surface of the supporting platform, of the outer layer pipe, the rotating pipe is arranged in a cavity between the inner layer pipe and the outer layer pipe and is positioned above the supporting platform, the rotating pipe is connected with the inner layer pipe and/or the outer layer pipe through a bearing, the platform assembly is fixedly connected to the lower end of the rotating pipe, the digging bucket can horizontally rotate and is hinged to the platform assembly, the digging bucket is opposite to the horizontal position of the annular opening, and the platform assembly is further provided with a driving assembly for driving the digging bucket to rotate and extend out of the annular opening; the platform assembly is provided with a hollow area, the switching sealing door is arranged in the hollow area, the lower part of the excavating bucket is opened and faces the hollow area, the supporting platform is provided with a soil inlet hollow opening, the inner layer pipe is positioned below the supporting platform and is provided with an opening, and the opening is connected with the soil inlet hollow opening through a connecting pipe; the lifting platform is provided with a second driving device for driving the rotating pipe to rotate; the auger elevator comprises auger blades which are inversely inserted into the inner layer pipe and extend to the lower end of the inner layer pipe.
2. The sampling device for detecting organic carbon distribution in plain soil according to claim 1, wherein: the platform assembly comprises an upper platform and a lower platform, the excavating bucket is hinged between the upper platform and the lower platform through a rotating shaft, and an opening of a cavity between the upper platform and the lower platform is opposite to the annular opening.
3. The sampling device for detecting organic carbon distribution in plain soil according to claim 2, wherein: the excavator is characterized in that the excavator is provided with an outer side lateral opening, an excavator driving gear ring is mounted on the back of the excavator main body, a driving gear is arranged between the lower platform and the upper platform and is in rotary connection with the rotary pipe through a bearing, the lower platform is further provided with a driving mechanism and a driving gear, the power end of the driving mechanism is connected with the driving gear, the driving gear is meshed with the driven gear, and the driven gear is meshed with the excavator driving gear ring to drive the driving gear to rotate and stretch out of the annular opening.
4. The sampling device for detecting organic carbon distribution in plain soil according to claim 2, wherein: the excavating bucket is provided with an outer side lateral opening, the lower platform is further provided with a linear driving mechanism, and the linear driving mechanism is connected with the inner side of the excavating bucket through a torsion spring so as to drive the excavating bucket to rotate and extend out of the annular opening.
5. The sampling device for detecting organic carbon distribution in plain soil according to claim 1, wherein: the number of the digging buckets is 2-3, and the height of the digging buckets is arranged at equal included angle intervals.
6. The sampling device for detecting organic carbon distribution in plain soil according to claim 1, wherein: the middle part of the auger blade is provided with an auger shaft, the lower end of the auger shaft is rotatably connected with the inner layer pipe through an auger shaft support and an auger shaft bearing, and the auger shaft support is a local hollowed-out support.
7. The sampling device for detecting organic carbon distribution in plain soil according to claim 1, wherein: the lower part of the outer layer tube is provided with a hemispherical guide head, and the lower end of the guide head is provided with a soil leakage opening.
8. The sampling device for detecting organic carbon distribution in plain soil according to any one of claims 1 to 7, wherein: the top surface of the supporting platform is provided with a sliding door trigger mechanism close to the soil inlet hollow opening at the front part of the rotating direction of the platform assembly, the sliding door trigger mechanism comprises a rotating key and a plate spring, the supporting platform is provided with a groove, the lower part of the rotating key is hinged in the groove through a rotating shaft, and the plate spring is abutted to the rotating key and the supporting platform and keeps upright through an elastic supporting rotating key;
the utility model discloses a platform subassembly is characterized by comprising a platform subassembly hollow area, a step groove has been seted up to the inside wall in platform subassembly hollow area, switch closure door package main part is the sliding door that the level set up, and the afterbody of sliding door has the backplate, and the bottom plate the place ahead of sliding door is equipped with triggers the arch, backplate slidable installs in the step groove, the inside reset spring that is equipped with in step hole, reset spring's both ends butt respectively at the tank bottom in step groove and backplate.
9. A sampling method for detecting the organic carbon distribution of plain soil, which uses the sampling device for detecting the organic carbon distribution of plain soil according to claim 8, and is characterized in that: the sampling method comprises the following steps of,
step 1, drilling holes in the ground, wherein the drilling depth is not lower than the target depth of a soil acquisition position, the excavating bucket can be opposite to the soil with the target depth, and the sampling device for detecting the organic carbon distribution of the soil in the plain area is moved to the drilling position;
step 2, driving the digging assembly into the drill hole to a target depth through the lifting driving mechanism, enabling the digging bucket to be opposite to soil with the target depth, enabling the digging bucket to extend out of the outer layer pipe through the annular opening through the driving assembly and dig the soil with the target depth, storing the soil in the digging bucket, switching the closed door to open when the digging bucket passes through the soil inlet hollow opening, throwing the soil in the digging bucket into the auger elevator through the soil inlet hollow opening and the connecting pipe, and lifting the soil to the ground through the auger elevator;
and 3, after the soil with the target depth and a sufficient volume is obtained, recovering the digging bucket to enter the outer layer pipe, driving the digging assembly to vertically move and enabling the digging bucket to correspond to the next target depth, and repeating the step 2 until all the soil with the target depth is obtained, and moving the digging assembly out of the drill hole.
10. The sampling method for detecting organic carbon distribution in plain soil according to claim 9, wherein the sampling method comprises the steps of: in the step (3) of the process,
when the recovery excavating bucket enters the outer layer pipe and then drives the excavating component to vertically move and enables the excavating bucket to correspond to the time period of the next target depth, the auger lifter is switched to rotate reversely, so that the auger blades reversely rotate for a long time, and soil in the auger lifter is fully emptied.
CN202310411713.6A 2023-04-18 2023-04-18 Sampling device and sampling method for detecting organic carbon distribution of plain soil Pending CN116429487A (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN116659940A (en) * 2023-07-28 2023-08-29 中铁二十二局集团轨道工程有限公司 Subway surveys ground sampling device
CN116990075A (en) * 2023-09-28 2023-11-03 生态环境部华南环境科学研究所(生态环境部生态环境应急研究所) Solid useless detection is with convenient sampler

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN116659940A (en) * 2023-07-28 2023-08-29 中铁二十二局集团轨道工程有限公司 Subway surveys ground sampling device
CN116990075A (en) * 2023-09-28 2023-11-03 生态环境部华南环境科学研究所(生态环境部生态环境应急研究所) Solid useless detection is with convenient sampler
CN116990075B (en) * 2023-09-28 2023-12-12 生态环境部华南环境科学研究所(生态环境部生态环境应急研究所) Solid useless detection is with convenient sampler

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