CN114136684A - Soil sampler and soil sampling method - Google Patents
Soil sampler and soil sampling method Download PDFInfo
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- CN114136684A CN114136684A CN202111384652.6A CN202111384652A CN114136684A CN 114136684 A CN114136684 A CN 114136684A CN 202111384652 A CN202111384652 A CN 202111384652A CN 114136684 A CN114136684 A CN 114136684A
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- 239000002689 soil Substances 0.000 title claims abstract description 138
- 238000005527 soil sampling Methods 0.000 title claims abstract description 17
- 238000000034 method Methods 0.000 title claims abstract description 15
- 230000007246 mechanism Effects 0.000 claims abstract description 33
- 239000002184 metal Substances 0.000 claims description 20
- 235000015097 nutrients Nutrition 0.000 abstract description 8
- 238000011160 research Methods 0.000 abstract description 3
- 238000003780 insertion Methods 0.000 abstract description 2
- 230000037431 insertion Effects 0.000 abstract description 2
- 230000008569 process Effects 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 230000000694 effects Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000005070 sampling Methods 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
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- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Sampling And Sample Adjustment (AREA)
- Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)
Abstract
The invention discloses a soil sampler and a soil sampling method, and relates to the technical field of soil research; the soil sampler comprises a cutting ring and a sleeve rod, wherein the cutting ring is fixedly connected to the lower end of the sleeve rod, and scales are arranged on the cutting ring and/or the sleeve rod; still include helping hand subassembly, the helping hand subassembly includes cardboard, lower cardboard and linear drive mechanism, go up the cardboard with the connection can be dismantled to the loop bar, down the cardboard with the connection can be dismantled to the cutting ring, linear drive mechanism is located go up the cardboard with between the cardboard down, just go up the cardboard with the cardboard passes through down the linear drive mechanism drive is kept away from relatively or is drawn close together, but the degree of depth of accurate control cutting ring insertion soil improves the precision of soil structure and nutrient survey. The soil sampling method is based on the soil sampler, the depth of the cutting ring inserted into soil can be accurately controlled, and meanwhile, a soil sample in the cutting ring can be taken out under the condition that the soil structure is prevented from being damaged.
Description
Technical Field
The invention relates to the technical field of soil research, in particular to a soil sampler and a soil sampling method.
Background
In basic science research of agriculture, soil structure and nutrients are often required to be measured. In the soil taking process, in order to ensure the accuracy of the soil taking depth and ensure that the original structure of the taken soil is not damaged in the soil taking process, a cutting ring soil taking device is generally adopted. The existing cutting ring soil sampler is mostly used for directly inserting a cutting ring into soil by using a connecting rod, but the soil sampling is generally carried out in planting alternation and each growth period of crops, and because of different areas and different periods, the soil has different water content and different soil viscosity, so that the resistance in soil sampling is different, and the condition that the cutting ring is difficult to pull out and the depth of the cutting ring inserted into the soil is difficult to accurately control exists.
Disclosure of Invention
The technical problems that in the existing ring cutter soil sampler, after a ring cutter is buried in soil, the ring cutter is difficult to pull out and the depth of the ring cutter entering and exiting the soil is difficult to accurately control are solved; the invention provides a soil sampler and a soil sampling method, which can easily pull out a cutting ring and accurately control the depth of the cutting ring inserted into soil, and improve the primitiveness of a soil structure and the accuracy of nutrient determination.
The invention is realized by the following technical scheme:
in a first aspect, the invention provides a soil sampler, which comprises a cutting ring and a sleeve rod, wherein the cutting ring is fixedly connected to the lower end of the sleeve rod, and the cutting ring and/or the sleeve rod are/is provided with scales; still include helping hand subassembly, the helping hand subassembly includes cardboard, lower cardboard and linear driving mechanism, go up the cardboard with the loop bar can be dismantled and be connected, down the cardboard with the connection can be dismantled to the cutting ring, linear driving mechanism is located go up the cardboard with between the cardboard down, just go up the cardboard with the cardboard passes through down the linear driving mechanism drive is kept away from relatively or is drawn close together.
When the soil sampler is used, the upper clamping plate of the power assisting assembly is connected with the upper end of the loop bar, the lower clamping plate of the power assisting assembly is connected with the outer wall of the cutting ring with the set height, the linear driving mechanism is positioned between the upper clamping plate and the lower clamping plate, then the soil sampler is vertically placed at a soil sampling place, the lower clamping plate is driven by the linear driving mechanism to be far away from the upper clamping plate until the upper scales of the cutting ring and/or the loop bar are level with the ground, and the cutting ring is deeply inserted into soil according to the set scale without being influenced by the water content of the soil and the viscosity of the soil. Therefore, the soil sampler provided by the invention can accurately control the depth of the cutting ring inserted into soil, and improve the primitiveness of the soil structure and the nutrient determination accuracy.
In an optional embodiment, the linear driving mechanism comprises a linear driver and a four-bar linkage, the upper end of the four-bar linkage is hinged to the upper clamping plate, the lower end of the four-bar linkage is hinged to the lower clamping plate, and the linear driver is used for driving the left end and the right end of the four-bar linkage to be relatively far away from or close to each other so as to ensure the stability of the lower clamping plate and the cutting ring in the up-and-down movement process.
In an optional embodiment, the linear driver comprises a lead screw, one end of the lead screw is rotatably connected with the left end of the four-bar linkage, and the other end of the lead screw is in threaded connection with the right end of the four-bar linkage, so that the four-bar linkage is driven to contract through rotation selection of the lead screw, and the position precision of the movement of the lower clamping plate can be further improved.
In an optional embodiment, the loop bar includes montant section and horizontal pole section, montant section lower extreme with the cutting ring cup joints, montant section upper end with horizontal pole section middle part fixed connection, just montant section upper end card is established one side of going up the cardboard to prevent to go up cardboard and loop bar production relative movement.
In an alternative embodiment, the lower clamping plate is clamped with the cutting ring so as to connect the power assisting assembly and the loop bar.
In an alternative embodiment, the lower end of the cutting ring is provided with a chamfer to reduce the resistance of the cutting ring to enter and exit the soil.
In an optional embodiment, cutting ring inner tube lower extreme is equipped with the annular, the annular inside callipers is equipped with the wire, the through wires hole is established to the cutting ring axial, the through wires hole is followed the cutting ring upper end extends to in the annular, the activity conveying has the stay cord in the through wires hole, the wire both ends divide establish with the both sides of through wires hole, just wire one end with cutting ring fixed connection, the wire other end with stay cord one end fixed connection, the stay cord other end extends to outside the cutting ring upper end.
After soil is inserted into the cutting ring according to a set depth, the metal wire is tensioned through the pull rope, so that the lower end of the soil in the cutting ring is annularly cut through the metal wire, the soil sample in the cutting ring is separated from the soil, resistance when the soil sample is separated from the soil is reduced, the success rate of taking out the soil sample through the cutting ring can be improved, and the structure of damaging the soil sample when the cutting ring is taken out from the soil is avoided.
In an optional embodiment, one end of the pull rope, which is far away from the annular groove, is provided with a pull ring, and the pull ring is positioned above the lower clamping plate so as to facilitate the pulling of the metal wire through the pull ring.
In a second aspect, the invention provides a soil sampling method, based on the soil sampler, comprising the following steps:
s1, clamping the upper end of the loop bar at one side of an upper clamping plate of the boosting assembly;
s2, clamping the metal wire in a ring groove on the inner wall of the cutting ring, and placing a pull ring at the upper end of the pull rope on the upper end of the lower clamping plate;
s3, vertically placing the soil sampler assembled in the step S2 at a soil sampling point;
s4, the upper clamping plate is abutted, the motor drives the screw rod to rotate, so that the cutting ring is driven to vertically move downwards until the lower clamping plate abuts against the surface of the soil layer;
s5, keeping the position of the ring cutter unchanged, and pulling the pull ring upwards until the pull ring reaches the upper limit position;
s6, the lower clamping plate is abutted against the lower clamping plate, and the screw rod is driven to rotate through the motor so as to drive the cutting ring to vertically move upwards until the lower end of the cutting ring leaves the ground;
and S7, removing the soil sampler from the soil, and then driving the lead screw to rotate again to reset the cutting ring relative to the sleeve rod so as to take out the soil sample clamped in the cutting ring.
The invention has the following beneficial effects:
1. according to the soil sampler provided by the invention, the upper clamping plate is detachably connected with the loop bar, the lower clamping plate is detachably connected with the cutting ring, the lower clamping plate is driven by the linear driving mechanism to be far away from the upper clamping plate, the cutting ring is driven by the linear driving mechanism to move downwards, the insertion depth is controlled according to the scales, the soil sampler is not influenced by the soil water content and the soil viscosity, the depth of the cutting ring inserted into the soil can be accurately controlled, and the soil structure primitive degree of taking out and the nutrient determination accuracy are improved.
2. According to the soil sampler provided by the invention, the annular groove is formed in the lower end of the inner cylinder of the cutting ring, the metal wire is clamped in the annular groove and is driven by the pull rope to be tightened, after the cutting ring is inserted into soil according to a set depth, the metal wire is tightened by the pull rope, and the lower end of the soil in the cutting ring is annularly cut by the metal wire, so that a soil sample in the cutting ring is separated from the soil, the resistance when the soil sample is separated from the soil is reduced, the success rate of taking the soil sample out by the cutting ring can be improved, and the structure of the soil sample is prevented from being damaged when the cutting ring is taken out from the soil.
3. According to the soil sampling method provided by the invention, the lower clamping plate is used for limiting the depth of the cutting ring inserted into the soil, the depth of the cutting ring inserted into the soil can be accurately controlled, the soil with the set depth is annularly cut through the metal wire, the soil sample is isolated from the soil, the resistance when the soil sample is separated from the soil is reduced, the success rate of taking out the soil sample through the cutting ring is improved, the structure of the soil sample is prevented from being damaged when the cutting ring is taken out of the soil, and the accuracy of soil structure and nutrient measurement is ensured.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present application and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained from the drawings without inventive effort.
FIG. 1 is a schematic structural view of a soil sampler according to an embodiment of the present invention;
FIG. 2 is a schematic cross-sectional view of a cutting ring according to an embodiment of the present invention.
Reference numerals:
1-cutting ring, 11-oblique plane, 12-ring groove, 13-metal wire, 14-pull rope, 15-pull ring, 2-loop bar, 21-vertical bar section, 22-horizontal bar section, 3-upper clamping plate, 4-lower clamping plate, 5-four-bar mechanism, 6-lead screw and 7-driving motor.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. The components of the embodiments of the present application, generally described and illustrated in the figures herein, can be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present application, presented in the accompanying drawings, is not intended to limit the scope of the claimed application, but is merely representative of selected embodiments of the application. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
In the description of the embodiments of the present application, the terms "central," "upper," "lower," "left," "right," "vertical," "longitudinal," "lateral," "horizontal," "inner," "outer," "front," "rear," "top," "bottom," and the like refer to orientations or positional relationships that are conventionally used in the manufacture of the present application, or that are routinely understood by those of ordinary skill in the art, but are merely used to facilitate the description and to simplify the 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 therefore should not be considered limiting of the present application.
In the description of the present invention, unless otherwise expressly specified or limited, the terms "disposed," "open," "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning a fixed connection, as opposed to a removable connection, or as an integral connection; may be a mechanical connection, to be an electrical connection; may be directly connected to one another, may be indirectly connected through intervening media, and may be internal to both elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict.
Example 1
With reference to fig. 1, the present embodiment provides a soil sampler, including a cutting ring 1 and a loop bar 2, where the cutting ring 1 is fixedly connected to the lower end of the loop bar 2, and the cutting ring 1 and/or the loop bar 2 are provided with scales; still include helping hand subassembly, the helping hand subassembly includes cardboard 3, cardboard 4 and linear drive mechanism down, go up cardboard 3 and cardboard 4 down all with loop bar 2 can dismantle the connection, cardboard 4 down with the connection can be dismantled to cutting ring 1, linear drive mechanism is located go up cardboard 3 with down between the cardboard 4, just go up cardboard 3 with down cardboard 4 passes through linear drive mechanism drives and keeps away from relatively or draw close together.
The scale on the cutting ring 1 and/or the shank 2 is determined according to the specific required sampling depth, and is typically set to 0-10cm, and the graduation of the scale lines is 10cm (the distance between two adjacent scales is 10cm) according to the layering of the soil to be sampled.
Continuing to refer to fig. 1, specifically, the loop bar 2 includes a vertical bar section 21 and a horizontal bar section 22, the lower end of the vertical bar section 21 is sleeved with the cutting ring 1, the upper end of the vertical bar section 21 is fixedly connected with the middle of the horizontal bar section 22, and the upper end of the vertical bar section 21 is clamped on one side of the upper clamping plate 3 to prevent the upper clamping plate 3 and the loop bar 2 from moving relatively.
Furthermore, the lower clamping plate 4 is clamped with the cutting ring 1, so that the applicability of the soil sampler is improved.
Referring to fig. 1 and 2, the lower end of the cutting ring 1 is provided with a chamfer 11 to reduce the resistance of the cutting ring 1 to soil entering and exiting.
The linear driving mechanism can be an electric push rod, a pneumatic cylinder and the like, and in the implementation, the linear driving mechanism comprises a linear driver and a four-bar linkage mechanism 5, the upper end of the four-bar linkage mechanism 5 is hinged to the upper clamping plate 3, the lower end of the four-bar linkage mechanism 5 is hinged to the lower clamping plate 4, and the linear driver is used for driving the left end and the right end of the four-bar linkage mechanism 5 to be relatively far away from or close to ensure the stability of the lower clamping plate 4 and the cutting ring 1 in the up-and-down moving process.
For the linear driver, the linear driver comprises a screw rod 6, one end of the screw rod 6 is rotatably connected with the left end of the four-bar linkage mechanism 5, the other end of the screw rod 6 is in threaded connection with the right end of the four-bar linkage mechanism 5, so that the four-bar linkage mechanism 5 is driven to contract through rotation selection of the screw rod 6, and the position precision of the movement of the lower clamping plate 4 can be further improved.
Further, combine fig. 2, 1 inner tube lower extreme of cutting ring is equipped with annular 12, the 12 inside callipers of annular are equipped with wire 13, the through wires hole is established to 1 axial of cutting ring, the through wires hole is followed 1 upper end of cutting ring extends to in the annular 12, the downthehole activity of through wires conveys has stay cord 14, 13 both ends of wire establish respectively with the both sides of through wires hole, just 13 one end of wire with 1 fixed connection of cutting ring, 13 other ends of wire with 14 one end fixed connection of stay cord, 14 other ends of stay cord extend to outside 1 upper end of cutting ring.
After the cutting ring 1 is inserted into soil according to a set depth, the metal wire 13 is tensioned through the pull rope 14, so that the lower end of the soil in the cutting ring 1 is circularly cut by the metal wire 13, a soil sample in the cutting ring 1 is separated from the soil, the resistance of the soil sample in the soil sample separation process is reduced, the success rate of taking the soil sample out through the cutting ring 1 can be improved, and the structure of the soil sample is prevented from being damaged when the cutting ring 1 is taken out from the soil.
Preferably, one end of the pulling rope 14 far away from the annular groove 12 is provided with a pulling ring 15, and the pulling ring 15 is located above the lower clamping plate 4, so that the metal wire 13 is pulled through the pulling ring 15. It should be noted that if the pull tab 5 has a large pulling resistance, the pull tab 15 can be inserted through the rod member, and one end of the rod member is placed against the upper end surface of the lower snap plate 4, so as to pull the pull tab 15 by using the lever principle.
The geotome that this embodiment provided moves down, lower cardboard 4 supports and leans on to carry on spacingly on the soil surface who fetches earth the point through sharp actuating mechanism drive cutting ring 1, does not receive the influence of soil water content and soil viscosity, but the degree of depth that the accurate control cutting ring 1 inserted soil. Simultaneously, accessible stay cord pulling wire is at the degree of depth of setting for with soil sample and soil separation to reduce the resistance when separating soil sample from soil, improve the success rate of taking out soil sample through cutting ring 1, avoid destroying the structure of soil sample when taking out cutting ring 1 from soil, ensure the precision of soil structure and nutrient survey.
Example 2
The embodiment provides a soil sampling method based on the soil sampler described in embodiment 1, which includes the following steps:
s1, clamping the upper end of the loop bar 2 at one side of an upper clamping plate 3 of the power assisting assembly;
s2, clamping the metal wire 13 in the annular groove 12 on the inner wall of the cutting ring 1, and placing the pull ring 15 at the upper end of the pull rope 14 at the upper end of the lower clamping plate 4;
s3, vertically placing the soil sampler assembled in the step S2 at a soil sampling point;
s4, the cutting ring abuts against the upper clamping plate 3, the motor drives the screw rod 6 to rotate so as to drive the cutting ring 1 to move vertically downwards until the lower clamping plate 4 abuts against the surface of a soil layer, and therefore the depth of the cutting ring 1 entering and exiting the soil is limited by the lower clamping plate 4;
s5, keeping the position of the cutting ring 1 unchanged, pulling the pull ring 15 upwards until the pull ring 15 reaches the upper limit position, so that the metal wire 13 is driven to tighten through the tension 14 to cut the soil in the cutting ring 1 in a circular manner, and separating the soil sample from the soil;
s6, the cutting ring abuts against the lower clamping plate 4, and the motor drives the screw rod 6 to rotate so as to drive the cutting ring 1 to vertically move upwards until the lower end of the cutting ring 1 leaves the ground;
and S7, removing the soil sampler from the soil, and then driving the screw 6 to rotate again to reset the cutting ring 1 relative to the sleeve rod 2 so as to take out the soil sample clamped in the cutting ring 1.
In summary, according to the soil sampling method provided by this embodiment, the lower clamping plate 4 limits the depth of the cutting ring 1 inserted into the soil, the depth of the cutting ring 1 inserted into the soil can be accurately controlled, the soil with a set depth is cut in a circular manner through the metal wire 13, the soil sample is isolated from the soil, the resistance when the soil sample is separated from the soil is reduced, the success rate of taking out the soil sample through the cutting ring 1 is improved, the structure of the soil sample is prevented from being damaged when the cutting ring 1 is taken out of the soil, and the accuracy of soil structure and nutrient determination is ensured.
The foregoing is only a preferred embodiment of the present invention, and the present invention is not limited thereto in any way, and any simple modification, equivalent replacement and improvement made to the above embodiment within the spirit and principle of the present invention still fall within the protection scope of the present invention.
Claims (9)
1. The soil sampler comprises a cutting ring (1) and a sleeve rod (2), and is characterized in that the cutting ring (1) is fixedly connected to the lower end of the sleeve rod (2), and scales are arranged on the cutting ring (1) and/or the sleeve rod (2);
still include helping hand subassembly, the helping hand subassembly includes cardboard (3), cardboard (4) and linear drive mechanism down, go up cardboard (3) with cardboard (4) all with loop bar (2) can dismantle the connection down, linear drive mechanism is located go up cardboard (3) with down between cardboard (4), just go up cardboard (3) with down cardboard (4) pass through linear drive mechanism drives and keeps away from relatively or draw close together.
2. The soil sampler according to claim 1, wherein the linear driving mechanism comprises a linear driver and a four-bar linkage mechanism (5), the upper end of the four-bar linkage mechanism (5) is hinged with the upper clamping plate (3), the lower end of the four-bar linkage mechanism (5) is hinged with the lower clamping plate (4), and the linear driver is used for driving the left end and the right end of the four-bar linkage mechanism (5) to relatively move away from or move close to each other.
3. The geotome of claim 2 wherein the linear drive comprises a lead screw (6), one end of the lead screw (6) is rotatably connected with the left end of the four-bar linkage (5), and the other end of the lead screw (6) is in threaded connection with the right end of the four-bar linkage (5).
4. The soil sampler according to claim 1, wherein the loop bar (2) comprises a vertical bar section (21) and a horizontal bar section (22), the lower end of the vertical bar section (21) is fixedly connected with the cutting ring (1), the upper end of the vertical bar section (21) is fixedly connected with the middle part of the horizontal bar section (22), and the upper end of the vertical bar section (21) is clamped on one side of the upper clamping plate (3).
5. The geotome of claim 1 wherein the lower clamp plate (4) is clamped to the cutting ring (1).
6. The geotome of claim 1 wherein the lower end of the cutting ring (1) is provided with a chamfer (11).
7. The soil sampler according to claim 1, wherein the ring cutter (1) is provided with a ring groove (12) at the lower end of the inner cylinder, a metal wire (13) is clamped in the ring groove (12), the ring cutter (1) is provided with a threading hole axially, the threading hole extends into the ring groove (12) from the upper end of the ring cutter (1), a pulling rope (14) is movably conveyed in the threading hole, two ends of the metal wire (13) are respectively arranged at two sides of the threading hole, one end of the metal wire (13) is fixedly connected with the ring cutter (1), the other end of the metal wire (13) is fixedly connected with one end of the pulling rope (14), and the other end of the pulling rope (14) extends out of the upper end of the ring cutter (1).
8. The geotome of claim 7 wherein the end of the draw string (14) remote from the ring groove (12) is provided with a pull ring (15), the pull ring (15) being located above the lower catch plate (4).
9. A soil sampling method, wherein the soil sampler according to any one of claims 1 to 8 comprises the following steps:
s1, clamping the upper end of the loop bar (2) at one side of an upper clamping plate (3) of the power-assisted assembly;
s2, clamping the metal wire (13) in the annular groove (12) on the inner wall of the cutting ring (1), and placing the pull ring (15) at the upper end of the pull rope (14) at the upper end of the lower clamping plate (4);
s3, vertically placing the soil sampler assembled in the step S2 at a soil sampling point;
s4, the upper clamping plate (3) is abutted, and the screw rod (6) is driven to rotate through the motor so as to drive the cutting ring (1) to vertically move downwards until scales on the cutting ring (1) and/or the sleeve rod (2) are flush with the ground;
s5, keeping the position of the cutting ring (1) unchanged, and pulling the pull ring (15) upwards until the pull ring (15) reaches an upper limit position;
s6, the lower clamping plate abuts against the lower clamping plate (4), and the lead screw (6) is driven to rotate through a motor so as to drive the cutting ring (1) to vertically move upwards until the lower end of the cutting ring (1) leaves the ground;
and S7, removing the soil sampler from the soil, and then driving the screw rod (6) to rotate again to reset the cutting ring (1) relative to the sleeve rod (2) so as to take out the soil sample clamped in the cutting ring (1).
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| CN211527899U (en) * | 2020-01-16 | 2020-09-18 | 中核五院岩土工程河南有限公司 | Sampling structure for rock and soil investigation |
| CN112255013A (en) * | 2020-11-16 | 2021-01-22 | 吉林大学 | Open-air shallow undisturbed soil sampling device |
| CN112963109A (en) * | 2021-02-04 | 2021-06-15 | 桂林师范高等专科学校 | Computer-automatically-controlled soil sampling drill device for undisturbed frozen soil and use method thereof |
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Application publication date: 20220304 |