CN114739731A - Layered sampling device and method for soil sample - Google Patents
Layered sampling device and method for soil sample Download PDFInfo
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- CN114739731A CN114739731A CN202210537829.XA CN202210537829A CN114739731A CN 114739731 A CN114739731 A CN 114739731A CN 202210537829 A CN202210537829 A CN 202210537829A CN 114739731 A CN114739731 A CN 114739731A
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- 238000005070 sampling Methods 0.000 title claims abstract description 222
- 239000002689 soil Substances 0.000 title claims abstract description 142
- 238000000034 method Methods 0.000 title claims abstract description 19
- 238000005553 drilling Methods 0.000 claims description 29
- 230000000149 penetrating effect Effects 0.000 claims description 5
- 230000008569 process Effects 0.000 claims description 4
- 238000005527 soil sampling Methods 0.000 abstract description 8
- 230000006378 damage Effects 0.000 abstract description 4
- 238000004134 energy conservation Methods 0.000 abstract description 2
- 230000009467 reduction Effects 0.000 abstract description 2
- 238000004856 soil analysis Methods 0.000 abstract description 2
- 238000009412 basement excavation Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000007790 scraping Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009529 body temperature measurement Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/02—Devices for withdrawing samples
- G01N1/04—Devices for withdrawing samples in the solid state, e.g. by cutting
- G01N1/08—Devices for withdrawing samples in the solid state, e.g. by cutting involving an extracting tool, e.g. core bit
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A90/00—Technologies having an indirect contribution to adaptation to climate change
- Y02A90/30—Assessment of water resources
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- Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)
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Abstract
The invention discloses a soil sample layered sampling device and a method, relating to the technical field of soil analysis, and comprising a sampling rod and a handle, wherein the sampling rod is internally provided with a longitudinal through hole; a first through hole is formed through the first fixing piece and the handle, and a second through hole is formed through the second fixing piece and the handle; the sampling rod is also provided with a transverse through hole, the periphery of the sampling rod is sleeved with a scraper mounting ring, a scraper is mounted on the scraper mounting ring, and one end of the first scraper control line is connected with a scraper; one end of the second scraper control line is connected with the scraper; the sampling container sleeve is established in the periphery of thief rod, and the sampling container is located the below of scraper, and anti-eccentric subassembly screw thread cup joints the outside at the thief rod. The soil sampling device is provided with the structures such as the sampling rod, the transverse and longitudinal through hole, the scraper mounting ring and the like, has the advantages of high sampling precision, high efficiency, convenient operation and transportation, no damage to the original soil layer structure, energy conservation and emission reduction, and can solve the technical problems of inconvenient operation and correlation of stratified sampling of shallow soil in the existing soil sampling method.
Description
Technical Field
The invention relates to the technical field of soil analysis, in particular to a layered sampling device and a layered sampling method for a soil sample.
Background
With the wider application range of geological engineering exploration, corresponding exploration means are more and more, such as soil sampling, near-surface hydrological observation, shallow-layer ground temperature measurement, water supply and drainage pipeline arrangement, electric power communication, municipal engineering arrangement exploration and the like. The field geological soil sample has a plurality of purposes, such as researching soil layer distribution, soil layer thickness, soil layer moisture content, soil density, soil layer temperature, hydrological conditions, material composition and the like, so that the physical and chemical properties of soil in underground soil layers are particularly urgent to be found. In order to accurately master the distribution condition of shallow soil, effectively develop, utilize and analyze shallow soil and detect shallow soil layering, samples need to be taken from a near-surface soil layer, so accurate layered sampling in shallow soil drilling is more and more important. Due to the fact that the shallow soil is different in thickness variation and different in layered soil components, the situation that the distribution of the shallow soil is not known clearly exists, geological exploration of field geological workers is difficult, the near-surface soil distribution characteristics are not convenient to observe, and related layered soil parameter data are not convenient to obtain. Most of the existing soil sampling methods are soil layer excavation or drilling full sampling, the soil layer excavation near the earth surface can damage the soil layer structure near the earth surface, the drilling full sampling can cause soil sample mixing and physical and chemical analysis workload increase of the full sampling, and the like, so that operators can not or inconveniently carry out the layered sampling work of the soil layer efficiently.
Chinese patent CN109682640A provides a layered micro soil sample sampler, which comprises a housing and a sampler slider core main body. The shell is provided with a sampling positioning groove, and the positions of samples with different depths can be respectively positioned. The sampler slider core main body is formed by combining a push rod, a push rod handle fixing screw, a slider core fixing screw and a sampling positioning screw. The shell and the sampler slider core part are connected into a whole through the shell end cover, the slider fixing screw and the sampling positioning screw, and the sampling positioning screw on the slider core and the sampling positioning groove on the sampler shell for controlling the sampling depth are mutually overlapped, so that the sampling depth of soil is accurately determined. The sampler slider core member has a length greater than a length of the sampler housing. However, the sampling part disclosed in the patent is easy to sample soil samples at other positions during extraction, and further the soil samples may be mixed, which affects the final sampling result.
Chinese patent CN206573316U discloses a soil layered sampler, comprising: the soil treatment device comprises a fixed shaft, an annular knife, a rotating member and a scraping plate, wherein the fixed shaft is suitable for being vertically arranged in soil, the annular knife extends along the circumferential direction of the fixed shaft and is connected with the fixed shaft, the rotating member is rotatably arranged on the fixed shaft so as to be constructed that the rotating member moves downwards for a preset distance when the rotating member rotates downwards for every circle along the axial direction of the fixed shaft, and the scraping plate is movably arranged on the rotating member or the fixed shaft so as to move downwards for a preset distance when the rotating member rotates downwards for every circle. However, during the downward rotation movement to the preset distance, the soil layer may be deviated in rotation, and the sampled soil layer is disordered, so that the sampling result is affected.
Chinese patent CN206987807U relates to the technical field of agricultural sampling, in particular to a portable deep soil layered sampling device, which comprises a sampling rod assembly, a drilling cone and a containing box, wherein the upper end of the sampling rod assembly is provided with an external thread convex body, the lower end of the sampling rod assembly is provided with an internal thread groove, and the side surface of the sampling rod assembly is provided with a sampling hopper; the sampling hopper is of a quadrangular pyramid structure, and one side wall of the sampling hopper is embedded on the side wall of the sampling rod assembly; the upper end of the sampling hopper is open, the interior of the sampling hopper is a cavity, and the lower end of the sampling hopper is a cone top; the ground drilling cone is of a cone structure, the upper end of the ground drilling cone is provided with a threaded connecting part, and the lower end of the ground drilling cone is a cone top; an internal thread groove is formed in the center of the bottom surface of the containing box, and a component containing groove and a ground drilling cone containing groove are formed in the containing box; an arc-shaped handle and a display are embedded in the side surface of the containing box; and a displacement sensor is arranged at the joint of the sampling hopper and the side surface of the sampling rod assembly, and the displacement sensor is connected with a display through a microprocessor. But the sampling fill of this patent is established in the side of sampling rod subassembly, is unfavorable for taking soil sample and all moves into the sampling fill in, inconvenient sampling operation.
Therefore, there is an urgent need for a device that can solve the inconvenience of the layered sampling operation of shallow soil and the related technical problems in the existing soil sampling method.
Disclosure of Invention
The invention provides a soil sample layered sampling device and method, aiming at solving the technical problems that the operation of layered sampling of shallow soil is inconvenient and the like in the existing soil sampling method.
In order to realize the purpose of the soil sample layered sampling device, the invention adopts the following technical scheme:
a soil sample layered sampling device comprises a sampling rod, a handle, a scraper, a first scraper control line, a second scraper control line, a scraper mounting ring, a sampling container and an anti-deviation ring assembly;
the end part of the sampling rod is inserted into the mounting hole of the handle, a longitudinal through hole is formed in the sampling rod, and a first fixing piece and a second fixing piece are mounted at two ends of the mounting hole; a first through hole is formed through the first fixing piece and the handle, and a second through hole is formed through the second fixing piece and the handle;
the sampling rod is also provided with a transverse through hole, a scraper mounting ring is sleeved on the periphery of the sampling rod, a scraper is mounted on the scraper mounting ring, a first scraper control line penetrates through the first through hole, extends into the longitudinal through hole and penetrates out of the transverse through hole to be connected with the scraper; the second scraper control line passes through the second through hole, extends to the interior of the longitudinal through hole, penetrates out of the transverse through hole and is connected with the scraper; the sampling container is sleeved on the periphery of the sampling rod and is positioned below the scraper.
Further, sampling device still includes the third mounting, through third mounting with scraper and scraper collar fixed connection, the anti-deflection ring subassembly screw thread cup joints the outside at the thief rod.
Further, the third fixing piece is a scraper mounting ring fixing bolt.
Further, the sampling device still includes the fourth mounting, the one end of first scraper control line is connected with first scraper control line and collects the wheel, and the other end is fixed with the scraper through the fourth mounting, and the one end of second scraper control line is connected with second scraper control line and collects the wheel, and the other end is fixed with the scraper through the fourth mounting.
Further, the first scraper control line controls the scraper to be in an open state, the second scraper control line controls the scraper to be in a closed state, and the fourth fixing piece is a control line fixing bolt.
Further, sampling device still includes the sampling positioning disk, the drill way position of soil layer drilling is hugged closely to the sampling positioning disk, and the convex part in addition is equipped with the guiding hole on the sampling positioning disk on the convex part, and the guiding hole is equipped with the internal thread, guiding hole and sample pole screw-thread fit, and the coaxial setting of guiding hole and soil layer drilling.
Furthermore, the connecting hole has been seted up to the side of convex part, and the construction bolt is used for sampling positioning disk and thief rod fixed connection in the connecting hole, just can prevent like this that sampling positioning disk and thief rod are asynchronous rotatory when the sample is rotatory, causes the sample dislocation.
Furthermore, prevent inclined to one side ring subassembly including last prevent inclined to one side ring and prevent inclined to one side ring down, go up and prevent inclined to one side ring down and all locate the below of sampling positioning disk, and go up and prevent being equipped with the screw thread between inclined to one side ring and the lower scraper collar of preventing that the inclined to one side ring cup joints in the outside of thief rod.
Furthermore, go up and all be equipped with the internal thread in preventing eccentric ring and the lower eccentric ring of preventing, the thief rod outer wall is equipped with the external screw thread, goes up and prevents eccentric ring and thief rod screw-thread fit, prevents eccentric ring and thief rod screw-thread fit down.
Further, sampling device still includes sampling container, and sampling container screw sleeve connects in the outside of thief rod, and sampling container locates the scraper and prevents between the eccentric ring down.
Further, the sampling container is cylindrical, conical or funnel-shaped and is arranged coaxially with the sampling rod.
Furthermore, the end part of the sampling rod is a square head, a square hole is formed in the center of the handle, and the square head is in clearance fit with the square hole.
In order to realize the purpose of the layered sampling method of the soil sample, the invention adopts the following technical scheme:
a soil sample layered sampling method comprises the following steps: before the sampling rod is inserted into a soil layer for drilling, a first scraper control line and a second scraper control line are respectively paid off through a first scraper control line collecting wheel and a second scraper control line collecting wheel, the first scraper control line penetrates through a first through hole from the lower part of a first fixing part to the upper part of a handle, and the first scraper control line penetrating to the upper part of the handle extends to a longitudinal through hole until the first scraper control line is led out from a transverse through hole and is fixed on a third fixing part; the second scraper control line penetrates through the second through hole from the lower part of the second fixing piece to the upper part of the handle, and the second scraper control line penetrating to the upper part of the handle extends to the longitudinal through hole until the second scraper control line is led out from the transverse through hole and fixed on another third fixing piece;
in the process of drilling the soil layer by inserting the sampling rod, the handle is rotated, so that the sampling rod sequentially penetrates through the sampling positioning disc and the soil layer drill hole from top to bottom until the sampling rod is drilled into the soil layer drill hole, the sampling rod is driven to rotate in the soil layer drill hole, and the sampling rod drives the scraper to rotate;
when the sampling rod is inserted into a soil layer for drilling and sampling, the first scraper control line and the second scraper control line are operated, so that the scrapers are controlled to be in an open or closed state, when the scrapers are opened, the scrapers can contact the wall of the hole and are inserted into the soil layer of the wall of the hole, when the scrapers are closed, the scrapers can leave the wall of the hole, and the scraped layered soil sample slides into the sampling container;
after the layering sampling of soil sample, the length mark on first scraper control line of record and the second scraper control line, closed scraper, and then propose the thief rod in following the soil layer drilling, take out the soil sample in the sampling container from the soil layer drilling.
Furthermore, the diameter of the cross section of the anti-deviation ring assembly is smaller than the diameter of the cross section of the soil layer drilled hole, and the diameter of the cross section of the sampling positioning disc is larger than the diameter of the cross section of the soil layer drilled hole.
Compared with the prior art, the invention has the following beneficial effects:
the invention is provided with the structures of the sampling rod, the handle, the sampling positioning disc, the longitudinal perforation, the transverse perforation, the anti-deviation ring component, the scraper mounting ring and the like, has the advantages of high sampling precision, high efficiency, convenient operation and transportation, no damage to the original soil layer structure, energy conservation and emission reduction, and can solve the technical problems of inconvenient operation of layered sampling of shallow soil and correlation in the existing soil sampling method. And soil sample layering sampling can reduce the physical chemistry analysis work load of whole sample, can avoid original soil layer structure destruction or soil sample mixing that soil layer excavation or drilling whole sample etc. caused, be convenient for survey near-surface soil distribution characteristic and obtain relevant layering soil parameter data, soil layer layering sampling relevant parameter record is convenient.
Drawings
FIG. 1 is a schematic structural diagram of a layered soil sample sampling device according to the present invention;
FIG. 2 is an exploded view of the device of FIG. 1;
reference numerals: 1. a sampling rod; 2. a handle; 3. a scraper; 4. a first scraper control line; 5. a second scraper control line; 6. a scraper mounting ring; 7. a sampling container; 8. a first fixing member; 9. a second fixing member; 10. a square hole; 11. a square head; 12. longitudinally perforating; 13. transversely perforating; 14. a third fixing member; 15. a fourth fixing member; 16. a first scraper control line collection wheel; 17. a second scraper control line stowing wheel; 18. sampling a positioning disc; 19. drilling a soil layer; 20. a convex portion; 21. an upper anti-deviation ring; 22. a lower anti-deviation ring; 23. a hole wall; 24. and (4) external threads.
Detailed Description
In order to make the purpose and technical solution of the present invention clearer, the following will clearly and completely describe the technical solution of the present invention with reference to the embodiments.
It is to be understood that the terms "center," "upper," "lower," "horizontal," "left," "right," "front," "rear," "lateral," "longitudinal," and the like are used in the illustrated orientation or positional relationship as shown in the drawings for ease of description and simplicity of description, and do not indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting.
Example 1
1-2, a soil sample layered sampling device, comprising a sampling rod 1, a handle 2, a scraper 3, a first scraper control line 4, a second scraper control line 5, a scraper mounting ring 6 and a sampling container 7; the end part of the sampling rod 1 is inserted into the mounting hole of the handle 2, the end part of the sampling rod 1 is provided with a square head 11, the mounting hole is arranged at the central position of the handle 2 and can be provided with a square hole 10, the square head 11 is in clearance fit with the square hole 10, a longitudinal through hole 12 is arranged in the sampling rod 1, a first fixing part 8 and a second fixing part 9 are arranged at two ends of the mounting hole, and preferably, the first fixing part 8 and the second fixing part 9 are both fixing bolts; a first through hole is formed through the first fixing part 8 and the handle 2, and a second through hole is formed through the second fixing part 9 and the handle 2; the sampling rod 1 is further provided with a transverse through hole 13, a scraper mounting ring 6 is sleeved on the periphery of the sampling rod 1, a scraper 3 is mounted on the scraper mounting ring 6, and a first scraper control line 4 penetrates through the first through hole, extends to the inside of the longitudinal through hole 12, penetrates out of the transverse through hole 13 and is connected with the scraper 3; the second scraper control line 5 passes through the second through hole, extends to the inside of the longitudinal through hole 12 and passes out of the transverse through hole 13 to be connected with the scraper 3; the sampling container 7 is sleeved on the periphery of the sampling rod 1, and the sampling container 7 is positioned below the scraper 3.
The sampling device further comprises a third fixing member 14, and the scraper 3 and the scraper mounting ring 6 are fixedly connected through the third fixing member 14. Third mounting 14 is scraper collar fixing bolt, and is concrete, is equipped with the recess on the scraper collar 6, and 3 one ends of scraper are inserted in the recess, and it is fixed with it by scraper collar fixing bolt and 3 junctions of scraper, and scraper collar fixing bolt is fixed with the thief rod, and scraper collar and thief rod can not synchronous revolution when preventing to take a sample. Specifically, the equipment principle of scraper collar and scraper is the same with the common principle that can open and shut through the hinge, can control opening and shutting of scraper like this through each control line, and sampling device still includes fourth mounting 15, and the one end of first scraper control line 4 is connected with first scraper control line and collects wheel 16, and the other end is fixed with scraper 3 through fourth mounting 15, and the one end of second scraper control line 5 is connected with second scraper control line and collects wheel 17, and the other end passes through fourth mounting 15 and is fixed with scraper 3. The first scraper control line 4 controls the scraper 3 to be in an open state, the second scraper control line 5 controls the scraper 3 to be in a closed state, and the fourth fixing member 15 is a control line fixing bolt, specifically, the scraper 3 can be opened and closed along an angle of 0-90 degrees under the combined action of the first scraper control line 4 and the second scraper control line 5.
Sampling device still includes sampling positioning disk 18, and sampling positioning disk 18 hugs closely the drill way position of soil layer drilling 19, is equipped with convex part 20 on the sampling positioning disk 18, and convex part 20 is equipped with the guiding hole, and this convex part 20 can select hollow cylinder, cup joints in sample pole 1 outside, and the guiding hole of convex part 20 and the coaxial setting of soil layer drilling 19. The connecting hole has been seted up to the side of convex part 20, the construction bolt is used for sampling positioning disk 18 and thief rod 1 fixed connection in the connecting hole, just so can prevent sampling positioning disk 18 and thief rod 1 asynchronous rotation when the sample is rotatory, cause the sample dislocation, concrete embodiment is because thief rod 1 has external screw thread 24, and the external screw thread 24 space is great, fixing bolt tip on the sampling positioning disk 18 can insert in the space of thief rod 1's external screw thread 24 can, can be through in the external screw thread 24 space of connecting hole in close contact with on thief rod 1, and then play the purpose that prevents sampling positioning disk 18 and thief rod 1 asynchronous rotation when the sample is rotatory. The same principle is adopted for the fixed connection of the scraper mounting ring 6 and the sampling rod 1. The anti-deviation ring component comprises an upper anti-deviation ring 21 and a lower anti-deviation ring 22, the upper anti-deviation ring 21 and the lower anti-deviation ring 22 are arranged below the sampling positioning disc 18, and a scraper installation ring 6 sleeved outside the sampling rod 1 through threads is arranged between the upper anti-deviation ring 21 and the lower anti-deviation ring 22. And all be equipped with the internal thread in going up anti-off-set ring 21 and the anti-off-set ring 22 down, the outer wall of thief rod 1 is equipped with external screw thread 24, goes up anti-off-set ring 21 and thief rod 1 screw-thread fit, and anti-off-set ring 22 and thief rod 1 screw-thread fit down. The sampling device also comprises a sampling container 7, the sampling container 7 is sleeved outside the sampling rod 1 in a threaded manner, and the sampling container 7 is arranged between the scraper 3 and the lower anti-deviation ring 22. The sampling container 7 is in the shape of a cylinder, cone or funnel, but is not limited to the shape of a cylinder, cone or funnel, as long as the sampling container 7 can be put into a soil layer borehole and play a role in receiving scraped soil samples, and is coaxially arranged with the sampling rod 1. The upper port of the sampling container 7 can be completely connected with the soil sample scraped by the scraper 3.
The working principle of the sampling device is as follows: the sampling rod 1 rotates the handle 2, is sleeved with the sampling rod 1 through the square head 11 and the square hole 10, is fixed by a fixing bolt for perforation, drives the soil sample layered sampling rod 1 to rotate by rotating the handle 2 at the top end, and then drives the scraper 3 sleeved on the sampling rod 1 to rotate by the sampling rod 1; at a soil layered sampling position, under the combined action of a first scraper control line 4 and a second scraper control line 5, a scraper 3 is opened to contact with a hole wall and is inserted into a hole wall soil layer, and the scraper 3 is closed to be separated from the hole wall, so that the sampling rod 1 can be conveniently taken out of a soil layer drilled hole 19; the depth of the soil sample scraper 3 inserted into the soil layer drill hole 19 in the hole wall is controlled through the first scraper control line 4 and the second scraper control line 5, and the rotating distance of the scraper 3 in the soil layer is controlled through rotating the handle 2, so that the amount of the collected soil sample can be controlled; the layering soil sample that scrapes slips to the sampling container 7 in, recycles the effect of first scraper control line 4 and second scraper control line 5, takes out the soil sample in the container from drilling, has reached the purpose of soil layering sampling, also can carry out the layering sample in the shallow layer soil simultaneously, further chemical examination test to the sample to the degree of depth, position and the layering thickness of on-the-spot in good time measuring soil layer sample play the effect of gathering the layering soil sample. And can select the anti-deviation ring subassembly of different diameter specifications according to the needs of on-spot sample aperture, prevent the slope when being convenient for control thief rod 1 is rotatory, avoid appearing the skew pore wall's of scraper 3 condition. It is also possible to connect a plurality of sampling rods 1 as the sampling depth increases and when the length of the independent sampling rod 1 is insufficient. The device is a detachable structure, and a user can detach the device into discrete parts so as to be convenient to carry.
A soil sample layered sampling method comprises the following steps:
before the sampling rod 1 is inserted into a soil layer drilling hole 19, a first scraper control line 4 and a second scraper control line 5 are respectively paid off through a first scraper control line collecting wheel 16 and a second scraper control line collecting wheel 17, the first scraper control line 4 penetrates through a first through hole from the lower part of a first fixing part 8 to the upper part of a handle 2, the first scraper control line 4 penetrating to the upper part of the handle 2 extends to a longitudinal through hole 12 until the first scraper control line is led out from a transverse through hole 13 and is fixed on a third fixing part 14; the second scraper control wire 5 passes through the second through hole from the lower part of the second fixing member 9 to the upper part of the handle 2, and the second scraper control wire 5 passing through the upper part of the handle 2 extends to the longitudinal through hole 12 until being led out from the transverse through hole 13 and fixed on another third fixing member 14; the first scraper control line 4 and the second scraper control line 5 respectively penetrate through the corresponding first through hole and the corresponding second through hole, so that the tightness degree of the first scraper control line 4 and the second scraper control line 5 can be further fixed through tightening the first fixing part 8 and the second fixing part 9 to control the opening and closing degree of the scrapers, in the process of taking up and paying off, the first scraper control line collecting wheel 16 and the second scraper control line collecting wheel 17 can limit the first scraper control line 4 and the second scraper control line 5, one longitudinal through hole 12 is arranged, a plurality of transverse through holes 13 are arranged, and the first scraper control line 4 and the second scraper control line 5 are led out from the transverse through holes 13 at layered sampling positions according to actual soil sampling requirements; in the process that the sampling rod 1 is inserted into the soil layer drilled hole 19, the handle 2 is rotated, so that the sampling rod 1 sequentially penetrates through the sampling positioning disc 18 and the soil layer drilled hole 19 from top to bottom until the sampling rod is drilled into the soil layer drilled hole 19, the sampling rod 1 is driven to rotate in the soil layer drilled hole 19, and the sampling rod 1 drives the scraper 3 to rotate; when the sampling rod 1 is inserted into a soil layer drilled hole 19 for sampling, the first scraper control line 4 and the second scraper control line 5 are operated, so that the scrapers 3 are controlled to be in an open or closed state, when the scrapers 3 are opened, the scrapers 3 can contact the hole wall and are inserted into the soil layer of the hole wall, when the scrapers 3 are closed, the scrapers 3 can leave the hole wall, and the scraped layered soil sample slides into the sampling container 7; after the layering sampling of soil sample, the length mark on the first scraper control line 4 of record and the second scraper control line 5, closed scraper 3, and then propose thief rod 1 from soil layer drilling 19, take out the soil sample in the sampling container 7 from soil layer drilling 19.
The cross-sectional diameters of an upper anti-deviation ring 21 and a lower anti-deviation ring 22 in the anti-deviation ring assembly are smaller than the cross-sectional aperture of the soil layer drilled hole 19, and the cross-sectional diameter of the sampling positioning disc 18 is larger than the cross-sectional aperture of the soil layer drilled hole 19. The sampling rod 1 is inserted into the guide hole of the sampling positioning disk 18 and can freely rotate coaxially with the sampling rod 1, and the sampling positioning disk 18 can support any sampling position of the sampling rod 1 in the soil layer drilling hole 19. The rotating handle 2 is in threaded fit with the anti-deviation ring assembly, so that the depth of the sampling rod 1 in the soil layer drilled hole 19 can be adjusted, and then the scraper 3 is controlled to sample in a layered mode at the position of the soil layer drilled hole 19 and in a positioning mode. The first scraper control line 4 and the second scraper control line 5 are provided with scale marks so as to timely record the position and the layering thickness of layered sampling. When on-spot soil layer layering sampling, thief rod 1 has the effect of drive and fixed scraper collar 6 and sampling container 7, can make thief rod 1 along the hole axle steady rotation in soil layer drilling 19 to guarantee the accurate position of scraper 3 sampling depth.
The above are merely embodiments of the present invention, which are described in detail and with particularity, and therefore should not be construed as limiting the scope of the invention. It should be noted that, for those skilled in the art, various changes and modifications can be made without departing from the spirit of the present invention, and these changes and modifications are within the scope of the present invention.
Claims (10)
1. A soil sample layered sampling device is characterized by comprising a sampling rod, a handle, a scraper, a first scraper control line, a second scraper control line, a scraper mounting ring, a sampling container and an anti-deviation ring assembly;
the end part of the sampling rod is inserted into the mounting hole of the handle, a longitudinal through hole is formed in the sampling rod, and a first fixing piece and a second fixing piece are mounted at two ends of the mounting hole; a first through hole is formed through the first fixing piece and the handle, and a second through hole is formed through the second fixing piece and the handle;
the sampling rod is also provided with a transverse through hole, a scraper mounting ring is sleeved on the periphery of the sampling rod, a scraper is mounted on the scraper mounting ring, a first scraper control line penetrates through the first through hole, extends into the longitudinal through hole and penetrates out of the transverse through hole to be connected with the scraper; the second scraper control line passes through the second through hole, extends to the interior of the longitudinal through hole, penetrates out of the transverse through hole and is connected with the scraper;
the sampling container sleeve is established in the periphery of thief rod, and the sampling container is located the below of scraper, and anti-eccentric subassembly screw thread cup joints the outside at the thief rod.
2. The layered soil sample sampling device as recited in claim 1, further comprising a third fastening member, wherein the scraper and the scraper mounting ring are fixedly connected by the third fastening member.
3. The layered soil sample sampling device according to claim 1, further comprising a fourth fixing member, wherein one end of the first scraper control line is connected with a first scraper control line collection wheel, the other end of the first scraper control line is fixed with the scraper through the fourth fixing member, one end of the second scraper control line is connected with a second scraper control line collection wheel, and the other end of the second scraper control line is fixed with the scraper through the fourth fixing member.
4. The soil sample stratified sampling device of claim 1, wherein the sampling device further comprises a sampling positioning disk, the sampling positioning disk is tightly attached to the hole opening position of the soil layer drilled hole, a convex part is arranged on the sampling positioning disk, a guide hole is formed in the convex part, an internal thread is formed in the guide hole, the guide hole is in threaded fit with the sampling rod, and the guide hole and the soil layer drilled hole are coaxially arranged.
5. The layered soil sample sampling device according to claim 1, wherein the anti-deviation ring assembly comprises an upper anti-deviation ring and a lower anti-deviation ring, the upper anti-deviation ring and the lower anti-deviation ring are both arranged below the sampling positioning plate, and a scraper mounting ring which is in threaded sleeve connection with the outer part of the sampling rod is arranged between the upper anti-deviation ring and the lower anti-deviation ring.
6. The layered soil sample sampling device as recited in claim 5, wherein the upper anti-deviation ring and the lower anti-deviation ring are internally threaded, the outer wall of the sampling rod is externally threaded, the upper anti-deviation ring is in threaded engagement with the sampling rod, and the lower anti-deviation ring is in threaded engagement with the sampling rod.
7. The layered soil sample sampling device as recited in claim 5, further comprising a sampling container, wherein the sampling container is threaded onto the exterior of the sampling rod, and the sampling container is disposed between the scraper and the lower anti-drift ring.
8. The layered soil sample sampling device as recited in claim 1, wherein the end of the sampling rod is a square head, a square hole is formed in the center of the handle, and the square head and the square hole are in clearance fit.
9. A soil sample layered sampling method, characterized in that the soil sample layered sampling device comprises the soil sample layered sampling device of any one of claims 1-8, and comprises the following steps:
before the sampling rod is inserted into a soil layer drill hole, a first scraper control line and a second scraper control line are respectively paid off through a first scraper control line collecting wheel and a second scraper control line collecting wheel, the first scraper control line penetrates through a first through hole from the lower part of a first fixing part to the upper part of a handle, and the first scraper control line penetrating to the upper part of the handle extends to a longitudinal through hole until the first scraper control line is led out from a transverse through hole and is fixed on a third fixing part; the second scraper control line penetrates through the second through hole from the lower part of the second fixing piece to the upper part of the handle, and the second scraper control line penetrating to the upper part of the handle extends to the longitudinal through hole until the second scraper control line is led out from the transverse through hole and fixed on another third fixing piece;
in the process of drilling the soil layer by inserting the sampling rod, the handle is rotated, so that the sampling rod sequentially penetrates through the sampling positioning disc and the soil layer drill hole from top to bottom until the sampling rod is drilled into the soil layer drill hole, the sampling rod is driven to rotate in the soil layer drill hole, and the sampling rod drives the scraper to rotate;
when the sampling rod is inserted into a soil layer for drilling and sampling, the first scraper control line and the second scraper control line are operated, so that the scrapers are controlled to be in an open or closed state, when the scrapers are opened, the scrapers can contact the wall of the hole and are inserted into the soil layer of the wall of the hole, when the scrapers are closed, the scrapers can leave the wall of the hole, and the scraped layered soil sample slides into the sampling container;
after the layering sampling of soil sample, the length mark on first scraper control line of record and the second scraper control line, closed scraper, and then propose the thief rod in following the soil layer drilling, take out the soil sample in the sampling container from the soil layer drilling.
10. The method for layered sampling of soil samples as claimed in claim 9, wherein the diameter of the cross section of the anti-drift ring assembly is smaller than the diameter of the cross section of the soil layer borehole, and the diameter of the cross section of the sampling positioning plate is larger than the diameter of the cross section of the soil layer borehole.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116337516A (en) * | 2023-05-30 | 2023-06-27 | 成都理工大学 | Geological detection sample core sampling device and method |
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