CN207751738U - A kind of sampler of project supervision - Google Patents
A kind of sampler of project supervision Download PDFInfo
- Publication number
- CN207751738U CN207751738U CN201820175268.2U CN201820175268U CN207751738U CN 207751738 U CN207751738 U CN 207751738U CN 201820175268 U CN201820175268 U CN 201820175268U CN 207751738 U CN207751738 U CN 207751738U
- Authority
- CN
- China
- Prior art keywords
- rotor plate
- sampler
- probe tube
- mounting groove
- project supervision
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 239000000523 sample Substances 0.000 claims abstract description 74
- 210000002421 cell wall Anatomy 0.000 claims abstract description 12
- 238000005070 sampling Methods 0.000 claims abstract description 11
- 238000000034 method Methods 0.000 claims abstract description 9
- 238000007789 sealing Methods 0.000 claims description 15
- 239000003292 glue Substances 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 3
- 238000007665 sagging Methods 0.000 claims description 2
- 239000002689 soil Substances 0.000 abstract description 27
- 238000002474 experimental method Methods 0.000 abstract description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 2
- 230000002262 irrigation Effects 0.000 abstract 1
- 238000003973 irrigation Methods 0.000 abstract 1
- 239000003814 drug Substances 0.000 description 4
- 229940079593 drug Drugs 0.000 description 4
- 238000010276 construction Methods 0.000 description 3
- 230000035699 permeability Effects 0.000 description 3
- 241001149930 Protura <class> Species 0.000 description 2
- 238000004026 adhesive bonding Methods 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 238000007373 indentation Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 241000826860 Trapezium Species 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000012797 qualification Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
Landscapes
- Sampling And Sample Adjustment (AREA)
Abstract
The utility model is related to soil water experiment sampling technique fields, disclose a kind of sampler of project supervision, solve the problems, such as that the discharge of air difficulty makes device push difficult in existing sampler, a kind of sampler of project supervision of its drip irrigation device, including probe tube, the upper surface of probe tube carries mounting groove, rotor plate is installed in mounting groove, rotor plate is rotatablely connected in the circumferential direction in vertical sampling pipe axle center with mounting groove, the side band of rotor plate is jagged, the outer of rotor plate and the cell wall of mounting groove are slidingly sealed, the bottom at notch edge and the slot bottom sliding of mounting groove are close, the slot bottom of mounting groove carries the venthole group for sampling inner air tube discharge, notch can align in rotor plate rotation process with venthole group, inner air tube can be discharged in time during its probe tube is pushed to soil, pushing process is easily laborsaving.
Description
Technical field
The utility model is related to soil water experiment sampling equipment field, more particularly to a kind of sampler of project supervision.
Background technology
Project supervision refers to that the supervisor with related qualification is entrusted by Party A, the engineering project according to state approval
File, the law in relation to engineering construction, regulation and engineering supervision contract and other construction contracts are built, Party A is represented
A kind of proficient service activity to the engineering construction implementing monitoring of Party B.To soil, Artificial Soil, backfill naturally in architectural engineering
Wait one of the detection work that soil soil property sample detection is common.
The existing device for facilitating soil sample.Such as a kind of Chinese patent " engineering prison that notification number is CN205898493U
Reason backfill sampler ", including probe tube, Guan Gai, pushing ram and pressing handle；Handle is pressed to be arranged on pushing ram
End, probe tube is interior to be equipped with casing, and the internal diameter of casing is identical as the outer diameter of pushing ram, and casing upper and lower ends are equipped with spiral shell in first
Line is provided on pushing ram and passes through casing with matched first external screw thread of the first internal thread, pushing ram and be spirally connected with casing；Pipe lid
It is spirally connected with probe tube lower end.
Disadvantage is that the soil soil property largely sampled is more close, gas permeability is poor, is pressed downward in probe tube
When entering in soil, original air cannot be discharged in time in probe tube, cause probe tube to push difficult and laborious.
Utility model content
The purpose of this utility model is in view of the deficiencies of the prior art, to provide a kind of sampler of project supervision, take
Inner air tube can be discharged in time during sample pipe is pushed to soil, and it is easily laborsaving to push process.
The above-mentioned technical purpose of the utility model technical scheme is that：
The upper surface of a kind of sampler of project supervision, including probe tube, the probe tube carries mounting groove, the peace
Rotor plate is installed, the rotor plate is rotatablely connected in the circumferential direction in vertical sampling pipe axle center with mounting groove, institute in tankage
The side band for stating rotor plate is jagged, and the outer of the rotor plate and the cell wall of mounting groove are slidingly sealed, the notch edge
Bottom and the sliding of mounting groove slot bottom are close, and the slot bottom of the mounting groove carries the venthole group for sampling inner air tube discharge, institute
Stating notch can align in rotor plate rotation process with venthole group.
By using above-mentioned technical proposal, before probe tube pushes, first rotating rotor plate makes notch alignment venthole group, then under
Probe tube is pressed, when in soil indentation probe tube, the air in probe tube can be discharged from venthole group to be avoided in probe tube inner product
It stays so that push convenient and strength-saving；After pushing simultaneously, rotation rotor plate makes venthole group seal, and is thus pulled out on probe tube
Probe tube inner upper end is not connected to directly with air during taking-up, and soil will not skid off drug taking tube because of its gravity in drug taking tube
Or it is not sampled pipe and takes up.
Preferably, the venthole group includes several spileholes and mounting hole, and the spilehole is around mounting hole
Axle center is uniformly distributed, and sealing element is equipped in the mounting hole, and the sealing element includes wearing the installation being fixed in mounting hole
Column and the diaphragm seal for being connected to mounting post upper end and all spilehole upper ends of covering, the diaphragm seal are flexible glue material.
By using above-mentioned technical proposal, during probe tube pushes, air in probe tube from jack up diaphragm seal and from
Spilehole be discharged, not under the influence of pressure gas；And when being pulled out on probe tube, due to soil gravitational and inertia, soil upper end moves up meeting
Lag, furthermore the gas permeability of soil is poor, and the air of upper end is believed that volume expansion in probe tube, negative compared with being formed for atmospheric pressure
Pressure so that diaphragm seal is attracted to the upper end of spilehole, further increases the leakproofness of venthole group when being pulled out on probe tube.
Preferably, coaxial annular groove is carried on the inside of the mounting hole, being carried on the side of the mounting post can
The snap ring being mutually clamped with annular groove, the bottom surface of the snap ring and the bottom surface of annular groove are the conical surface that can be fitted.
By using above-mentioned technical proposal, when mounting post drives snap ring to move down, the bottom surface of snap ring is with respect to annular groove
Bottom surface moves down, and the bottom surface of annular groove is caused to compress snap ring towards its center so that the bottom surface of snap ring and annular groove is bonded
Even closer, thus when being pulled out on probe tube, upper end forms negative pressure in probe tube, and mounting post is driven to move down, and thus improves installation
The leakproofness in hole.
Preferably, for the mounting groove slot bottom with sagging deep gouge, the cell wall of the deep gouge is the conical surface, the sealing
The bottom surface edge of piece is placed on the cell wall of deep gouge.
By using above-mentioned technical proposal, there are small―gap suture between the bottom surface of diaphragm seal and the upper end aperture of spilehole,
So that sampling inner air tube only needs to jack up the edge of diaphragm seal when being discharged out of spilehole, it is stingy when ensureing to pull out on probe tube
While the leakproofness of hole, reduce the outside exhaust resistance of spilehole.
Preferably, strainer is installed at the lower end aperture of the spilehole.
By using above-mentioned technical proposal, prevent soil upper end dust from flowing into spilehole or indentation deep soil upper end with air
Squeeze into stingy hole plug caused by spilehole.
Preferably, level meter is carried on the upper surface of the rotor plate.
By using above-mentioned technical proposal, facilitates adjustment probe tube axially vertical, avoid depth selection error.
Preferably, there are four level meters for band on the upper surface of the rotor plate, and four level meters are around rotation
The center of plate is uniformly distributed, and the notch is between two level meters.
It, can be to the axial vertical progress of probe tube without rotating rotor plate or probe tube by using above-mentioned technical proposal
Judge, convenient for the axially adjustable of probe tube.
Preferably, the side of the level meter is higher than the upper surface of rotor plate.
By using above-mentioned technical proposal, ejection level meter can drive rotor plate to rotate, and through-hole is adjusted convenient for rotor plate
Group opens and closes.
Preferably, the probe tube includes the first semicanal and the second semicanal of same diameter, outside first semicanal
The upper and lower ends of side carry external screw thread, are embedded with sealing strip at the section of second semicanal, the probe tube further includes upper solid
Determine ring and lower fixed ring, the internal thread to match with external screw thread is carried on the inside of fixed ring and lower fixed ring.
By using above-mentioned technical proposal, the first semicanal and the second semicanal side and upper top surface gluing, sealing are good, sampling
The first semicanal and the second semicanal are separable afterwards, and pedotheque removal method is taken out and reduced convenient for pedotheque to pedotheque
The influence of stability.
In conclusion the utility model has the advantages that：
1. before probe tube pushes, first rotating rotor plate makes notch alignment venthole group, then pushes probe tube, is pressed into soil
When in probe tube, the air in probe tube can be discharged from venthole group to be avoided accumulating in probe tube so that is pushed convenient and strength-saving；
2. pulled out on probe tube, diaphragm seal is sampled upper end of the negative-pressure adsorption in spilehole of upper end in pipe, further carries
The leakproofness of venthole group when being pulled out on high probe tube ensures that soil is completely taken up with handle on probe tube in probe tube；
3. the bottom surface of snap ring and the bottom surface of annular groove are the conical surface that can be fitted, when being pulled out on probe tube, in probe tube
Upper end forms negative pressure, and mounting post is driven to move down, and thus improves the leakproofness of mounting hole；
4. there are small―gap sutures between the bottom surface of diaphragm seal and the upper end aperture of spilehole, stingy when ensureing to pull out on probe tube
While the leakproofness of hole, reduce the outside exhaust resistance of spilehole；
5. probe tube includes the first semicanal and the second semicanal, the two side and upper top surface gluing, sealing are good, the after sampling
One semicanal and the second semicanal are separable, and stabilization of the pedotheque removal method to pedotheque is taken out and reduced convenient for pedotheque
The influence of property.
Description of the drawings
Fig. 1 is the structural schematic diagram of sampler；
Fig. 2 is the explosive view of sampler；
Fig. 3 is the attached view of semicanal one；
Fig. 4 is the sectional view at semicanal one in figure 3 A-A；
Fig. 5 is partial enlarged views of the Fig. 4 at B；
Fig. 6 is partial enlarged views of the Fig. 4 at C；
Fig. 7 is the interface arrangment schematic diagram of mounting post and mounting hole.
Description of the drawings：1, probe tube；11, the first semicanal；111, caulking groove is sealed；112, mounting groove；1121, caulking groove；1122、
Sealing ring；12, the second semicanal；121, upper screw thread；122, lower screw thread；13, upper fixed ring；14, lower fixed ring；15, sawtooth；16、
Sealing strip；17, rotor plate；171, notch；172, level meter；18, venthole group；181, deep gouge；182, spilehole；1832, it filters
Net；183, mounting hole；184, sealing element；1841, diaphragm seal；1842, mounting post；1842-1, snap ring；1831, annular groove；2, it promotes
Bar；21, shaft；211, conehead；22, handle；23, top pressure block.
Specific implementation mode
The utility model is described in further detail below in conjunction with attached drawing.
As shown in Figure 1 and Figure 2, a kind of sampler of project supervision, including probe tube 1 and pushing ram 2, wherein taking
Sample pipe 1 includes 11 second semicanal 12 of the first semicanal, and the horizontal cross-section of the first semicanal 11 and the second pipe is semicircle, and the two can phase
Alignment is spliced to form downward opening cylinder, and probe tube 1 carries end saw directed downwardly on the lower opening edge of cylinder
Tooth 15.
The top and bottom of second semicanal, 12 lateral surface carry external screw thread, and it is respectively upper screw thread 121, lower screw thread to correspond to
122.The top of 122 protrusion of upper screw thread 121 and lower screw thread is located at the outside of 12 lateral surface of the second semicanal.
Pushing ram 2 include overlapped with the second pipe axle center and with the fixed shaft 21 in top surface on the second semicanal 12, along shaft 21
Partly extend radially through the handle 22 of shaft 21 and positioned at the fixed top pressure block 23 with 21 end of shaft.Sampling is stretched out in the lower end of shaft 21
Pipe 1 is outer and its lower end is also carried in coaxial conehead 211.Handle 22 is located at 12 upper table of the second semicanal with 21 through part of shaft
Above face, for lifting sampler.The shape of top pressure block 23 can be preferably same with shaft 21 herein depending on actual conditions
The cylinder of axis, be used to press downward top pressure probe tube 1.The upper top surface of the first semicanal 11 is located at axle center and goes out to carry and axis simultaneously
The notch 171 that bar 21 matches.
Probe tube 1 further includes upper fixed ring 13 and lower fixed ring 14, and upper fixed ring 13 and lower fixed ring 14 can be socketed in spelling
The first semicanal 11 and the second semicanal 12 outside closed, and 13 inside of upper fixed ring with 121 matched internal thread of upper screw thread, under
14 inside of fixed ring carries and 122 matched internal thread of lower screw thread.The first semicanal 11 and the second semicanal 12 are fixed with this so that two
Person can according to circumstances demand selection separation or split.
The phase Mosaic face of the first semicanal 11 and the second semicanal 12 is opened there are two the seal groove of " L " simultaneously, is respectively position
In two the first seal grooves on the first semicanal 11（Referring to attached drawing 4）With two the second seal grooves on the second semicanal 12.
First seal groove and the second seal groove can align two-by-two, and embedding in the first seal groove and the second seal groove of its each pair of split
The sealing strip 16 for having " L " shape thereby guarantees that the leakproofness after 12 split of the first semicanal 11 and the second semicanal.
As shown in Fig. 3, it is provided with circular mounting groove 112 on the upper top surface of the first plate pipe, mounting groove 112 is embedded with rotation
Plate 17.Rotor plate 17 is rounded, and thereon with jagged 171,171 size of notch can be this time 1/4 circle depending on actual conditions
Sector.It is provided with venthole group 18 on the slot bottom of mounting groove 112 simultaneously, rotor plate 17 can block venthole group 18, lack simultaneously
Mouth 171 can be aligned again with venthole group 18 keeps venthole group 18 exposed.
For band there are four level meter 172, four level meters 172 are equal around the center of rotor plate 17 on the upper surface of rotor plate 17
Even distribution, notch 171 is between two level meters 172.It can be to the axis of probe tube 1 without rotating rotor plate 17 or probe tube 1
To being judged vertically, convenient for the axially adjustable of probe tube 1.The side of level meter 172 is higher than the upper surface of rotor plate 17 simultaneously,
Ejection level meter 172 can drive rotor plate 17 to rotate, and be adjusted convenient for the rotation of rotor plate 17.
As shown in figures 4 and 5, annular and coaxially embedding are provided on the cell wall of the close slot bottom of mounting groove 112
Slot 1121, the outer of rotor plate 17 it is embedding in caulking groove 1121, and the upper surface peace parallel with caulking groove 1121 of 17 outer of rotor plate
The elastic ring of annular is accompanied between the cell wall of 112 slot bottom of tankage, elastic ring compresses rotor plate 17, makes rotor plate 17 in mounting groove
Its bottom surface and the slot bottom of mounting groove 112 seal against while rotation in 112.
As shown in Fig. 6, venthole group 18 include mounting hole 183, sealing element 184 and it is several surround 183 axle center of mounting hole
It is arranged and is connected to the extraneous spilehole 182 with inside probe tube 1.The slot bottom of mounting groove 112 is equipped with a deep gouge 181, deep gouge 181
Cell wall is the conical surface collected downwards.Mounting hole 183 is located at the center of the slot bottom of deep gouge 181, and through the upper table of the first semicanal 11
Face.Spilehole 182 is distributed in the slot bottom of deep gouge 181 and the junction of cell wall, and is equipped at the lower end aperture of spilehole 182
Strainer 1832, the soil for preventing spilehole 182 to be sampled in pipe 1 or dust block.
As shown in attached drawing 6 and attached drawing 7, sealing element 184 include be inserted into mounting hole 183 in mounting post 1842 and be pressed against it is heavy
Diaphragm seal 1841 in slot 181.Diaphragm seal 1841 is rounded, and edge rides on the cell wall of deep gouge 181, by spilehole 182
It covers thereunder, while there are gaps between the bottom surface of diaphragm seal 1841 and the upper aperture of spilehole 182.Diaphragm seal 1841
It can deform for flexible glue material.
Coaxial snap ring 1842-1 is carried on the side of mounting post 1842, snap ring 1842-1 radial sections can triangle
Or it is trapezoidal, it is herein triangle so that side outside snap ring 1842-1 is the conical surface collected downwards.On 183 hole wall of mounting hole
With coaxial annular groove 1831,1831 radial section of annular groove is right-angled trapezium, and bottom surface in an axial direction is to collect downwards
The conical surface, it is parallel with the lateral surface of snap ring 1842-1.When mounting post 1842 drives snap ring 1842-1 to move down, snap ring
The bottom surface of 1842-1 is moved down with respect to the bottom surface of annular groove 1831, and the bottom surface of annular groove 1831 is caused to be compressed towards its center
Snap ring 1842-1 so that the fitting of the bottom surface of snap ring 1842-1 and annular groove 1831 is even closer, thus when being pulled out on probe tube 1,
Upper end forms negative pressure in probe tube 1, and mounting post 1842 is driven to move down, and thus improves the leakproofness of mounting hole 183.
The operation principle of the utility model：
Before probe tube 1 pushes, first rotating rotor plate 17 makes notch 171 be directed at venthole group 18, then pushes probe tube 1,
When soil is pressed into probe tube 1, the air in probe tube 1 can be flowed up from spilehole 182, and by 1841 edge top of diaphragm seal
It rises, to which probe tube 1 be discharged, it is avoided to be accumulated in probe tube 1 so that push convenient and strength-saving；After pushing simultaneously, rotation
Rotor plate 17 is so that venthole group 18 seals, during thus choosing out on probe tube 1, due to soil gravitational and inertia, soil
Moving up for upper end can lag, furthermore the gas permeability of soil is poor, and the air of upper end is believed that volume expansion in probe tube 1, compared with air
Negative pressure is formed for pressure so that diaphragm seal 1841 is attracted to the upper end of spilehole 182, further increases when being pulled out on probe tube 1
The leakproofness of venthole group 18, soil will not skid off drug taking tube or not be sampled pipe 1 because of its gravity in drug taking tube takes up.
This specific embodiment is only the explanation to the utility model, is not limitations of the present invention, ability
Field technique personnel can as needed make the present embodiment the modification of not creative contribution after reading this specification, but
As long as all being protected by Patent Law in the right of the utility model.
Claims (9)
1. a kind of sampler of project supervision, including probe tube（1）, which is characterized in that the probe tube（1）Upper surface band
There is mounting groove（112）, the mounting groove（112）Rotor plate is inside installed（17）, the rotor plate（17）In vertical sampling pipe（1）
In the circumferential direction in axle center with mounting groove（112）Rotation connection, the rotor plate（17）Side band it is jagged（171）, described
Rotor plate（17）Outer and mounting groove（112）Cell wall be slidingly sealed, the notch（171）The bottom at edge and mounting groove
（112）Slot bottom slides close, the mounting groove（112）Slot bottom carry for probe tube（1）The venthole group of interior air discharge（18）,
The notch（171）In rotor plate（17）It can be with venthole group in rotation process（18）It aligns.
2. a kind of sampler of project supervision according to claim 1, which is characterized in that the venthole group（18）Packet
Include several spileholes（182）And mounting hole（183）, the spilehole（182）Around mounting hole（183）Axle center be uniformly distributed,
The mounting hole（183）Sealing element is inside installed（184）, the sealing element（184）It is fixed on mounting hole including wearing（183）It is interior
Mounting post（1842）Be connected to mounting post（1842）Upper end and all spileholes of covering（182）The diaphragm seal of upper end
（1841）, the diaphragm seal（1841）For flexible glue material.
3. a kind of sampler of project supervision according to claim 2, which is characterized in that the mounting hole（183）It is interior
Side carries coaxial annular groove（1831）, the mounting post（1842）Side on can be with annular groove（1831）Mutually it is clamped
Snap ring（1842-1）, the snap ring（1842-1）Bottom surface and annular groove（1831）Bottom surface be the conical surface that can be fitted.
4. a kind of sampler of project supervision according to claim 2, which is characterized in that the mounting groove（112）Slot
Tail band has sagging deep gouge（181）, the deep gouge（181）Cell wall be the conical surface, the diaphragm seal（1841）Bottom surface edge
It is placed on deep gouge（181）Cell wall on.
5. a kind of sampler of project supervision according to claim 2, which is characterized in that the spilehole（182）'s
Lower end is equipped with strainer at aperture（1832）.
6. a kind of sampler of project supervision according to claim 1, which is characterized in that the rotor plate（17）It is upper
Level meter is carried on surface（172）.
7. a kind of sampler of project supervision according to claim 6, which is characterized in that the rotor plate（17）It is upper
There are four level meters for band on surface（172）, four level meters（172）Around rotor plate（17）Center be uniformly distributed, institute
State notch（171）Positioned at two level meters（172）Between.
8. a kind of sampler of project supervision according to claim 6, which is characterized in that the level meter（172）'s
Side is higher than rotor plate（17）Upper surface.
9. a kind of sampler of project supervision according to claim 1, which is characterized in that the probe tube（1）Including
First semicanal of same diameter（11）With the second semicanal（12）, first semicanal（11）The upper and lower ends in outside carry outer spiral shell
Line, second semicanal（12）Section at be embedded with sealing strip（16）, the probe tube（1）It further include upper fixed ring（13）With under
Fixed ring（14）, fixed ring（13）With lower fixed ring（14）Inside carries the internal thread to match with external screw thread.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820175268.2U CN207751738U (en) | 2018-01-31 | 2018-01-31 | A kind of sampler of project supervision |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820175268.2U CN207751738U (en) | 2018-01-31 | 2018-01-31 | A kind of sampler of project supervision |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207751738U true CN207751738U (en) | 2018-08-21 |
Family
ID=63154495
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820175268.2U Expired - Fee Related CN207751738U (en) | 2018-01-31 | 2018-01-31 | A kind of sampler of project supervision |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207751738U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110243628A (en) * | 2019-07-24 | 2019-09-17 | 沈阳农业大学 | Sampler is used in a kind of analysis of soil micromorphology |
-
2018
- 2018-01-31 CN CN201820175268.2U patent/CN207751738U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110243628A (en) * | 2019-07-24 | 2019-09-17 | 沈阳农业大学 | Sampler is used in a kind of analysis of soil micromorphology |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180821 |