CN108444748A - A kind of farmland pollution improvement soil sampling apparatus - Google Patents
A kind of farmland pollution improvement soil sampling apparatus Download PDFInfo
- Publication number
- CN108444748A CN108444748A CN201810202480.8A CN201810202480A CN108444748A CN 108444748 A CN108444748 A CN 108444748A CN 201810202480 A CN201810202480 A CN 201810202480A CN 108444748 A CN108444748 A CN 108444748A
- Authority
- CN
- China
- Prior art keywords
- rack
- soil
- sampling apparatus
- soil sampling
- risers
- 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.)
- Pending
Links
- 238000005527 soil sampling Methods 0.000 title claims abstract description 18
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 21
- 239000010959 steel Substances 0.000 claims abstract description 21
- 238000009434 installation Methods 0.000 claims description 2
- 239000002689 soil Substances 0.000 abstract description 27
- 238000005070 sampling Methods 0.000 abstract description 19
- 238000000034 method Methods 0.000 abstract description 5
- 238000010586 diagram Methods 0.000 description 5
- 230000035611 feeding Effects 0.000 description 4
- 230000002265 prevention Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000005067 remediation Methods 0.000 description 2
- 239000010802 sludge Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 241000196324 Embryophyta Species 0.000 description 1
- 231100000614 Poison Toxicity 0.000 description 1
- 241000607479 Yersinia pestis Species 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 201000010099 disease Diseases 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 239000003337 fertilizer Substances 0.000 description 1
- 230000002262 irrigation Effects 0.000 description 1
- 238000003973 irrigation Methods 0.000 description 1
- 239000003621 irrigation water Substances 0.000 description 1
- 239000000575 pesticide Substances 0.000 description 1
- 239000002574 poison Substances 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 238000004856 soil analysis Methods 0.000 description 1
- 238000003900 soil pollution Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000002351 wastewater Substances 0.000 description 1
Classifications
-
- 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
Abstract
The invention discloses a kind of farmland pollution improvement soil sampling apparatus, including top plate, top plate bottom is installed with left risers and right risers vertically, the equal level of left risers and right risers lower end is installed with bottom plate, bottom base plate rotary type is equipped with traveling wheel, it is arranged with the sliding slot extended vertically in set medial wall of the tube, sliding slot inner sliding type is embedded with the sliding block being fixed on driving shaft side wall；The lifter plate bottom surface is installed with steel pipe vertically, and the sleeve bottom is installed with vertically is installed with screw blade positioned at the column spinner surface of steel duct, and rotation door free end is threadedly coupled fixation with collecting box by lock-screw；The present invention realizes the mechanical sampling of soil, and labor intensity is low, simple to operate, the upward helical feed to soil is realized by the downward precession of screw blade, the collection of sample soil is carried out by collecting box, sample soil sampling process is easy to operate, running is steady, realizes the quick sampling operation of sample soil.
Description
Technical field
The present invention relates to soil sample technical field, specifically a kind of farmland pollution improvement soil sampling apparatus.
Background technology
Soil Pollution Control is the activity for preventing soil from being polluted and being improved, administered to contaminated soil.Soil
Protection should aim at prevention.The emphasis of prevention should be placed on carries out concentration and overall control to various discharge of pollutant sources；Agricultural is used
Water carries out regular monitoring, supervision, is allowed to meet agricultural irrigation water quality standard；Rational use of chemical fertilizer, pesticide cautiously use lower water
Sludge, river silt, pond sludge；Utilize urban wastewater irrigation, it is necessary to carry out purified treatment；Promote the biological control of disease pest and weed and comprehensive
Prevention is closed, and regulation mine prevents mine poison pollution etc..
It needs first to be sampled detection to soil to be repaired during soil remediation.It is taken at present to soil
When sample, manual sampling is all carried out using common manual sampler mostly, however, such sampling mode sampling efficiency is relatively low,
And sampling cause high effort for, per sub-sampling personnel soil to be repaired be sampled when can all spend a large amount of work of sampling personnel
Make the time, increase the work load of sampling personnel, reduce the working efficiency of sampling personnel, can not achieve not only quickly but also conveniently
Be sampled, to people soil remediation work bring great inconvenience.
Invention content
The purpose of the present invention is to provide a kind of farmland pollution improvement soil sampling apparatus, to solve above-mentioned background technology
The problem of middle proposition.
To achieve the above object, the present invention provides the following technical solutions：
A kind of farmland pollution improvement soil sampling apparatus, including top plate, top plate bottom are installed with left risers and the right side vertically
Riser, the equal level of left risers and right risers lower end are installed with bottom plate, and bottom base plate rotary type is equipped with traveling wheel, the bottom plate
Upper surface is equipped with resetting spring vertically, and the horizontal connection of resetting spring upper end has lifter plate, is installed with just at the top of the top plate
Motor is inverted, is coaxially installed with driving shaft on the output shaft of clockwise and anticlockwise motor, driving shaft surface, which is arranged, is installed with master
Dynamic bevel gear, rotary type is equipped with first driven shaft and second driven shaft, first driven shaft respectively in the left risers and right risers
It is installed with the first driven wheel of differential that connection is engaged with drive bevel gear respectively close to driving shaft one end with second driven shaft
With the second driven wheel of differential, vertical sliding formula is equipped with the first rack and the second rack on the top plate；The first driven shaft table
Surface cover sets the first spur gear wheel for being installed with and engaging connection with the first rack, and second driven shaft surface is arranged fixed installation
There is the second spur gear wheel that connection is engaged with the second rack；It is equipped with and is set in actively by bearing rotary type on the lifter plate
Sleeve on axis covers and is arranged with the sliding slot extended vertically in medial wall of the tube, and sliding slot inner sliding type, which is embedded with, is fixed on driving shaft
Sliding block on side wall；The lifter plate bottom surface is installed with steel pipe vertically, and the sleeve bottom is installed with vertically to be located at
The column spinner surface of steel duct is installed with screw blade；The steel pipe both sides are installed with collecting box, on steel pipe
Side wall offers the feeding passage being connected to collecting box inside, and the collecting box lower rotation formula is equipped with rotation door, and rotation door is certainly
Fixation is threadedly coupled with collecting box by lock-screw by holding.
Scheme as an improvement of the present invention：The resetting spring upper end is fixed on lifter plate bottom surface, under resetting spring
End is fixed on plate upper surface.
Scheme as an improvement of the present invention：The lifter plate left and right ends connect with left risers and right risers sliding respectively
It connects.
Scheme as an improvement of the present invention：First rack and the second rack lower end are each attached to lifter plate upper table
Face.
Scheme as an improvement of the present invention：The teeth of first rack and the second rack are towards on the contrary.
Scheme as an improvement of the present invention：Slope mouthful is offered in the steel pipe lower wall.
Scheme as an improvement of the present invention：The column spinner lower end is cone structure.
Compared with prior art, the beneficial effects of the invention are as follows：
The present invention realizes the mechanical sampling of soil, and labor intensity is low, simple to operate, is realized by the downward precession of screw blade
To the upward helical feed of soil, the collection of sample soil is carried out by collecting box, sample soil sampling process is easy to operate, and running is steady,
Realize the quick sampling operation of sample soil.
Description of the drawings
Fig. 1 is the structural diagram of the present invention；
Fig. 2 be Fig. 1 in A to the second rack and the second spur gear wheel connection diagram；
Fig. 3 is the enlarged diagram in the portions B in Fig. 1；
Fig. 4 is the enlarged diagram in the portions C in Fig. 1;
Fig. 5 is the connection complete section schematic diagram of sliding block and sliding slot in the present invention.
In figure：1- top plates, the first racks of 2-, 3- first driven shafts, the first driven wheel of differential of 4-, 5- drive bevel gears, 6-
Clockwise and anticlockwise motor, 7- driving shafts, the second driven wheel of differential of 8-, the second racks of 9-, the second spur gear wheels of 10-, 11- second are driven
Axis, 12- lifter plates, 13- right risers, 14- steel pipes, 15- screw blades, 16- column spinners, 17- traveling wheels, 18- bottom plates, 19- are multiple
Position spring, 20- left risers, the first spur gear wheels of 21-, 22- sleeves, 23- sliding slots, 24- sliding blocks, 25- collecting boxs, 26- feedings
Channel, 27- rotations door, 28- lock-screws.
Specific implementation mode
The technical solution of this patent is described in more detail With reference to embodiment：
- 5 are please referred to Fig.1, peace is fixed in a kind of farmland pollution improvement soil sampling apparatus, including top plate 1,1 bottom of top plate vertically
Equipped with left risers 20 and right risers 13, the equal level of left risers 20 and 13 lower end of right risers is installed with bottom plate 18,18 bottom of bottom plate
Portion's rotary type is equipped with traveling wheel 17, and 18 upper surface of the bottom plate is equipped with resetting spring 19 vertically, and 19 upper end level of resetting spring connects
It is connected to lifter plate 12,1 top of the top plate is installed with clockwise and anticlockwise motor 6, is coaxially fixed on the output shaft of clockwise and anticlockwise motor 6
Driving shaft 7 is installed, 7 surface of driving shaft, which is arranged, is installed with drive bevel gear 5, divides in the left risers 20 and right risers 13
Other rotary type is equipped with first driven shaft 3 and second driven shaft 11, and first driven shaft 3 and second driven shaft 11 are close to driving shaft 7 one
End is installed with the first driven wheel of differential 4 and the second driven wheel of differential 8 that connection is engaged with drive bevel gear 5 respectively, described
Vertical sliding formula is equipped with the first rack 2 and the second rack 9 on top plate 1；3 surface of the first driven shaft be arranged be installed with
First spur gear wheel 21 of the first rack 2 engagement connection, 11 surface of second driven shaft, which is arranged, to be installed with and the second rack 9
Engage the second spur gear wheel 10 of connection；It is equipped with and is set on driving shaft 7 by bearing rotary type on the lifter plate 12
Sleeve 22 is arranged with the sliding slot 23 extended vertically on 22 madial wall of sleeve, and 23 inner sliding type of sliding slot, which is embedded with, to be fixed on actively
Sliding block 24 on 7 side wall of axis；12 bottom surface of the lifter plate is installed with steel pipe 14 vertically, and 22 bottom of the sleeve is fixed vertically
16 surface of column spinner inside steel pipe 14 is installed and is installed with screw blade 15；The fixed peace in 14 both sides of the steel pipe
Equipped with collecting box 25,14 upper side wall of steel pipe offers the feeding passage 26 being connected to 25 inside of collecting box, 25 bottom of the collecting box
Portion's rotary type is equipped with rotation door 27, and rotation 27 free end of door is threadedly coupled fixation by lock-screw 28 with collecting box 25.
The application method and operation principle of the present invention：
In use, the present apparatus to be placed in the region for the soil sampling of being carried out by traveling wheel 17, starts clockwise and anticlockwise motor 6 and rotate forward
Driving shaft 7 is driven to rotate, driving shaft 7 drives drive bevel gear 5 to rotate, and the drive of drive bevel gear 5 is engaged with the first of connection
Driven wheel of differential 4 and the second driven wheel of differential 8 rotation, the first driven wheel of differential 4 and second from mantle tooth drive respectively first from
Moving axis 3 and second driven shaft 11 rotate, and first driven shaft 3 drives the first spur gear wheel 21 to rotate clockwise, with the first cylinder
First rack 2 of the engagement connection of spur gear 21 moves down, and second driven shaft 11 drives the second spur gear wheel 10 to turn counterclockwise
Dynamic, the second rack 9 that connection is engaged with the second spur gear wheel 10 moves down, and the first rack 2 and the second rack 9 are common at this time
Lifter plate 12 is driven to move down；At the same time, driving shaft 7 is rotated by sliding block 24 with moving sleeve 22, and sleeve 22 drives rotation
Column 16 rotates, and the band moving sleeve 22 that moves down of lifter plate 12 moves down, and sliding block 24 is with respect to 23 longitudinal sliding motion of sliding slot, rotation at this time
Rotary column 16 is moved down together with sleeve 22, and steel pipe 14 is moved down also with lifter plate 12, and subsequent steel pipe 14 and column spinner 16 connect
It touches upper soll layer and extends downward into inside soil, column spinner 16 drives screw blade 15 to rotate, by soil along in steel pipe 14
Wall rotation is delivered up, and sample soil is entered inside collecting box 25 by feeding passage 26 and collected；It is anti-to control clockwise and anticlockwise motor 6
Turn, driving shaft 7 rotates backward, and lifter plate 12 moves up at this time, and then steel pipe 14, column spinner 16 is driven to move up and from soil
It is removed in earth；During this period, in the lifting process of lifter plate 12, the deformation elongation and compression of resetting spring 19 improve soil
The stationarity of sampling process.After sampling, lock-screw 28 is removed, opening rotation door 27 can be by the sample soil in collecting box 25
It takes out, is used for subsequent soil analysis.
In conclusion the present invention realizes the mechanical sampling of soil, labor intensity is low, simple to operate, passes through circular knife
The upward helical feed to soil is realized in 15 downward precession of piece, and the collection of sample soil, sample soil sampling process are carried out by collecting box 25
Easy to operate, running is steady, realizes the quick sampling operation of sample soil.
It is obvious to a person skilled in the art that invention is not limited to the details of the above exemplary embodiments, Er Qie
In the case of without departing substantially from spirit or essential attributes of the invention, the present invention can be realized in other specific forms.Therefore, no matter
From the point of view of which point, the present embodiments are to be considered as illustrative and not restrictive, and the scope of the present invention is by appended power
Profit requires rather than above description limits, it is intended that all by what is fallen within the meaning and scope of the equivalent requirements of the claims
Variation is included within the present invention.Any reference signs in the claims should not be construed as limiting the involved claims.
In addition, it should be understood that although this specification is described in terms of embodiments, but not each embodiment is only wrapped
Containing an independent technical solution, this description of the specification is merely for the sake of clarity, and those skilled in the art should
It considers the specification as a whole, the technical solutions in the various embodiments may also be suitably combined, forms those skilled in the art
The other embodiment being appreciated that.
Claims (7)
1. a kind of farmland pollution improvement soil sampling apparatus, including top plate（1）, top plate（1）Bottom is installed with a left side vertically
Riser（20）And right risers（13）, left risers（20）And right risers（13）The equal level in lower end is installed with bottom plate（18）, bottom plate
（18）Lower rotation formula is equipped with traveling wheel（17）, which is characterized in that the bottom plate（18）Upper surface is equipped with resetting spring vertically
（19）, resetting spring（19）Upper end horizontal connection has lifter plate（12）, the top plate（1）Top is installed with clockwise and anticlockwise motor
（6）, clockwise and anticlockwise motor（6）Output shaft on be coaxially installed with driving shaft（7）, driving shaft（7）Surface is arranged fixed installation
There is drive bevel gear（5）, the left risers（20）And right risers（13）Upper rotary type respectively is equipped with first driven shaft（3）With second
Driven shaft（11）, first driven shaft（3）And second driven shaft（11）Close to driving shaft（7）One end is installed with and active respectively
Bevel gear（5）Engage the first driven wheel of differential of connection（4）With the second driven wheel of differential（8）, the top plate（1）Upper vertical sliding
Formula is equipped with the first rack（2）With the second rack（9）；The first driven shaft（3）Surface, which is arranged, to be installed with and the first rack
（2）Engage the first spur gear wheel of connection（21）, second driven shaft（11）Surface, which is arranged, to be installed with and the second rack（9）
Engage the second spur gear wheel of connection（10）；The lifter plate（12）Upper be equipped with by bearing rotary type is set in driving shaft
（7）On sleeve（22）, sleeve（22）The sliding slot extended vertically is arranged on madial wall（23）, sliding slot（23）Inner sliding type is embedding
Equipped with being fixed on driving shaft（7）Sliding block on side wall（24）；The lifter plate（12）Bottom surface is installed with steel pipe vertically（14）,
The sleeve（22）Bottom is installed with vertically positioned at steel pipe（14）Internal column spinner（16）Surface is installed with spiral
Blade（15）；The steel pipe（14）Both sides are installed with collecting box（25）, steel pipe（14）Upper side wall offers and collecting box
（25）The feeding passage of inside connection（26）, the collecting box（25）Lower rotation formula is equipped with rotation door（27）, rotate door（27）
Free end passes through lock-screw（28）With collecting box（25）It is threadedly coupled and fixes.
2. farmland pollution improvement soil sampling apparatus according to claim 1, which is characterized in that the resetting spring
（19）Upper end is fixed on lifter plate（12）Bottom surface, resetting spring（19）Lower end is fixed on bottom plate（18）Upper surface.
3. farmland pollution improvement soil sampling apparatus according to claim 1, which is characterized in that the lifter plate（12）
Left and right ends respectively with left risers（20）And right risers（13）It is slidably connected.
4. farmland pollution improvement soil sampling apparatus according to claim 1, which is characterized in that first rack
（2）With the second rack（9）Lower end is each attached to lifter plate（12）Upper surface.
5. farmland pollution improvement soil sampling apparatus according to claim 1, which is characterized in that first rack
（2）With the second rack（9）Teeth towards opposite.
6. farmland pollution improvement soil sampling apparatus according to claim 1, which is characterized in that the steel pipe（14）Under
Slope mouthful is offered on side wall.
7. farmland pollution improvement soil sampling apparatus according to claim 1, which is characterized in that the column spinner（16）
Lower end is cone structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810202480.8A CN108444748A (en) | 2018-03-13 | 2018-03-13 | A kind of farmland pollution improvement soil sampling apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810202480.8A CN108444748A (en) | 2018-03-13 | 2018-03-13 | A kind of farmland pollution improvement soil sampling apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108444748A true CN108444748A (en) | 2018-08-24 |
Family
ID=63194627
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810202480.8A Pending CN108444748A (en) | 2018-03-13 | 2018-03-13 | A kind of farmland pollution improvement soil sampling apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108444748A (en) |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109030082A (en) * | 2018-10-26 | 2018-12-18 | 哈尔滨师范大学 | A kind of mechanical soil sampling apptss |
| CN109115547A (en) * | 2018-08-27 | 2019-01-01 | 张冲 | Sampler is used in a kind of detection of Tetranychus turkestani water content |
| CN109900881A (en) * | 2019-03-23 | 2019-06-18 | 任建新 | A kind of farmland soil heavy metals contamination analysis prior-warning device |
| CN110132642A (en) * | 2019-05-30 | 2019-08-16 | 河海大学 | A kind of soil environment detection sampler |
| CN110954357A (en) * | 2019-12-19 | 2020-04-03 | 许昌学院 | Sampling device for civil engineering rock and soil detection |
| CN110967219A (en) * | 2020-01-17 | 2020-04-07 | 建德托程自动化设备有限公司 | Soil sampler |
| CN111272466A (en) * | 2020-01-23 | 2020-06-12 | 苏州市环境科学研究所 | Soil is administered and is used collection system convenient to carry |
| CN111502667A (en) * | 2020-05-09 | 2020-08-07 | 大连海洋大学 | Autonomous deep sea mining robot |
| CN112505289A (en) * | 2020-11-12 | 2021-03-16 | 安徽科技学院 | Automatic soil nutrient detection system |
| CN112903968A (en) * | 2021-01-27 | 2021-06-04 | 丁青 | Vehicle-mounted mobile soil pollution robot sampling, detecting, repairing and treating vehicle |
| CN114018658A (en) * | 2021-11-09 | 2022-02-08 | 中国人民解放军总医院第五医学中心 | Air sample collector for regional infectious disease investigation equipment |
| CN114184423A (en) * | 2022-01-13 | 2022-03-15 | 周亮宇 | Geological survey sampling system |
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| CN107219091A (en) * | 2017-07-17 | 2017-09-29 | 邹铁梅 | A kind of municipal construction soil sampling apparatus |
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| CN107493704A (en) * | 2017-09-27 | 2017-12-22 | 雷晓琴 | A kind of Chinese garden planting car that loosens the soil |
| CN206990252U (en) * | 2017-07-24 | 2018-02-09 | 李俊锋 | Geology content hole drilling type sampler is used in geological mapping exploitation |
| CN107741336A (en) * | 2017-10-12 | 2018-02-27 | 李林 | A kind of used in soil remediation Soil K+adsorption sampling is with separating equipment integrating |
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| CN203772580U (en) * | 2014-03-12 | 2014-08-13 | 青岛农业大学 | Agricultural soil property sampling device |
| CN105806652A (en) * | 2016-06-01 | 2016-07-27 | 王保锋 | Soil detecting and sampling device for agricultural planting |
| CN206725259U (en) * | 2017-05-17 | 2017-12-08 | 安陆华生摩丝网络科技有限公司 | A kind of Internet of Things Soil K+adsorption harvester |
| CN107219091A (en) * | 2017-07-17 | 2017-09-29 | 邹铁梅 | A kind of municipal construction soil sampling apparatus |
| CN206990252U (en) * | 2017-07-24 | 2018-02-09 | 李俊锋 | Geology content hole drilling type sampler is used in geological mapping exploitation |
| CN107493704A (en) * | 2017-09-27 | 2017-12-22 | 雷晓琴 | A kind of Chinese garden planting car that loosens the soil |
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Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109115547A (en) * | 2018-08-27 | 2019-01-01 | 张冲 | Sampler is used in a kind of detection of Tetranychus turkestani water content |
| CN109030082A (en) * | 2018-10-26 | 2018-12-18 | 哈尔滨师范大学 | A kind of mechanical soil sampling apptss |
| CN109030082B (en) * | 2018-10-26 | 2019-08-13 | 哈尔滨师范大学 | A kind of mechanical soil sampling apptss |
| CN109900881A (en) * | 2019-03-23 | 2019-06-18 | 任建新 | A kind of farmland soil heavy metals contamination analysis prior-warning device |
| CN110132642B (en) * | 2019-05-30 | 2020-10-16 | 河海大学 | Soil environment detects sample thief |
| CN110132642A (en) * | 2019-05-30 | 2019-08-16 | 河海大学 | A kind of soil environment detection sampler |
| CN110954357A (en) * | 2019-12-19 | 2020-04-03 | 许昌学院 | Sampling device for civil engineering rock and soil detection |
| CN110967219A (en) * | 2020-01-17 | 2020-04-07 | 建德托程自动化设备有限公司 | Soil sampler |
| CN111272466A (en) * | 2020-01-23 | 2020-06-12 | 苏州市环境科学研究所 | Soil is administered and is used collection system convenient to carry |
| CN111502667A (en) * | 2020-05-09 | 2020-08-07 | 大连海洋大学 | Autonomous deep sea mining robot |
| CN112505289A (en) * | 2020-11-12 | 2021-03-16 | 安徽科技学院 | Automatic soil nutrient detection system |
| CN112903968A (en) * | 2021-01-27 | 2021-06-04 | 丁青 | Vehicle-mounted mobile soil pollution robot sampling, detecting, repairing and treating vehicle |
| CN114018658A (en) * | 2021-11-09 | 2022-02-08 | 中国人民解放军总医院第五医学中心 | Air sample collector for regional infectious disease investigation equipment |
| CN114184423A (en) * | 2022-01-13 | 2022-03-15 | 周亮宇 | Geological survey sampling system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20180824 |