CN111141550B - Sampling device for detecting microorganisms of agricultural products - Google Patents
Sampling device for detecting microorganisms of agricultural products Download PDFInfo
- Publication number
- CN111141550B CN111141550B CN202010112878.XA CN202010112878A CN111141550B CN 111141550 B CN111141550 B CN 111141550B CN 202010112878 A CN202010112878 A CN 202010112878A CN 111141550 B CN111141550 B CN 111141550B
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- wall
- shell
- micro motor
- seat
- broken
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- 238000005070 sampling Methods 0.000 title claims abstract description 36
- 244000005700 microbiome Species 0.000 title claims abstract description 13
- 238000001514 detection method Methods 0.000 claims abstract description 11
- 230000001681 protective effect Effects 0.000 claims abstract description 9
- 238000007789 sealing Methods 0.000 claims description 16
- 230000000087 stabilizing effect Effects 0.000 claims description 9
- 238000005520 cutting process Methods 0.000 claims description 6
- 239000000463 material Substances 0.000 claims description 4
- 230000002906 microbiologic effect Effects 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 4
- 239000012528 membrane Substances 0.000 description 5
- 238000000034 method Methods 0.000 description 4
- 235000011389 fruit/vegetable juice Nutrition 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000005096 rolling process Methods 0.000 description 2
- 241000894006 Bacteria Species 0.000 description 1
- 241000233866 Fungi Species 0.000 description 1
- 241000700605 Viruses Species 0.000 description 1
- 239000006096 absorbing agent Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 230000000813 microbial effect Effects 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000003908 quality control method Methods 0.000 description 1
- 238000002791 soaking Methods 0.000 description 1
- 229920006302 stretch film Polymers 0.000 description 1
Images
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 sampling device for agricultural product microorganism detection, which comprises a device main body, an electric telescopic rod, a first micro motor, a second micro motor and a spiral sampling assembly, wherein a protective cover is connected to the lower part of the device main body by a connecting shell, the electric telescopic rod is fixed at the inner top of the device main body so as to drive the first micro motor arranged at the output end of the electric telescopic rod to perform lifting linear motion, a mounting seat is fixed at the output end of the first micro motor, and the second micro motor is embedded below the mounting seat; spiral sampling subassembly can rotate through controller control micro motor one and micro motor two for outer broken wall shell can continuously carry out circumferential direction according to same direction under the drive of micro motor one, and interior broken wall shell can carry out circumferential direction with clockwise and anticlockwise alternating direction under the drive of micro motor two, thereby has improved crushing efficiency, has also improved crushing effect simultaneously, is convenient for the later stage and takes out in the outer broken wall shell.
Description
Technical Field
The invention relates to the technical field of food sampling, in particular to a sampling device for detecting microorganisms of agricultural products.
Background
In the production process of agricultural products, due to the food characteristics of the agricultural products, the detection of microorganisms, such as a large biological population including bacteria, viruses, fungi and some small protozoa, needs to be fast and effective, so as not to affect the normal production and strict product quality control of enterprises.
Chinese patent discloses an agricultural product microorganism detection device (grant publication No. CN209307374U), and the device is used for the manual work to take a sample with the sword when taking a sample, but during the manual sampling, comparatively wastes time and energy to can lead to work efficiency low, thereby comparatively inconvenient.
Current sampling device in addition, when broken the wall to agricultural product, efficiency is lower, can't stretch into harder agricultural product even a bit, and device overall stability is relatively poor in addition, can not prevent that the juice from soaking in the precision apparatus for whole life reduces.
Accordingly, one skilled in the art provides a solution to the problems set forth in the background above.
Disclosure of Invention
In order to achieve the purpose, the invention provides the following technical scheme: a sampling device for agricultural product microorganism detection comprises a device main body, an electric telescopic rod, a first micro motor, a second micro motor and a spiral sampling assembly, wherein a connecting shell is connected with a protective cover below the device main body, the connecting shell and the protective cover are all hollow cylinders so as to accommodate the electric telescopic rod and the spiral sampling assembly, the electric telescopic rod is fixed at the inner top of the device main body so as to drive the first micro motor arranged at the output end of the electric telescopic rod to perform lifting linear motion, a mounting seat is fixed at the output end of the first micro motor, and the second micro motor is embedded below the mounting seat;
The spiral sampling assembly comprises an outer wall breaking shell and an inner wall breaking shell, wherein the outer wall breaking shell is connected with the mounting base through a hollow shaft, and the inner wall breaking shell is fixedly connected with the output end of the micro motor II;
the inner wall-breaking shell is coaxially arranged inside the outer wall-breaking shell, and a gap is reserved between the inner wall-breaking shell and the outer wall-breaking shell so that the broken parts of the agricultural products can enter the gap.
Further, preferably, the outer wall breaking shell is a revolving body with openings at the upper and lower parts, wherein the upper opening is used for accommodating the inner wall breaking shell, and the lower opening is a discharge hole;
two groups of ring seats are symmetrically fixed on the outer circumference of the outer broken wall shell, wherein the upper ring seat is used for being fixedly connected with the hollow shaft, and the lower ring seat is provided with a plurality of through holes so as to be detachably fixedly connected with the sealing seat tightly abutted against the lower part of the outer broken wall shell by adopting bolts;
the spiral tool bit is fixed below the sealing seat, and an oscillator is fixed in a closed space formed by the spiral tool bit and the sealing seat so as to vibrate the spiral tool bit through the oscillator.
Further, as preferred, the outer broken wall shell on the inside and outside circumference and the outer circumference of interior broken wall shell all with the heliciform cloth has the broken wall cutting edge, just the broken wall cutting edge is discontinuous, and the broken wall cutting edge on the interior circumference of outer broken shell wall does not contact with the broken wall cutting edge on the outer circumference of interior broken shell wall.
Further, as preferred, a plurality of pan feeding holes have been seted up along its footpath to the outer circumference of outer broken shell wall, the pan feeding hole sets up for avoiding the broken wall cutting edge.
Further, as preferred, outer broken wall shell can continuously carry out circumferential direction according to same direction under the drive of micro motor one, interior broken wall shell can carry out circumferential direction with clockwise alternate direction under the drive of micro motor two.
Further, as an optimization, a fixed seat is fixed at the output end of the electric telescopic rod, a first micro motor is fixedly embedded in the fixed seat, a mounting seat is fixed at the output end of the first micro motor, first sliding blocks are symmetrically arranged on the outer circumference of the fixed seat, and the first sliding blocks are slidably arranged in first sliding grooves which correspond to the first sliding blocks and are formed in the inner wall of the device body.
Further, as preferred, the outside of mount pad still is provided with steadying piece and flexible membrane of elasticity, steadying piece includes bearing, stable seat and slider two, two ring channels have been seted up to the outer circumference of mount pad, so that the bearing can correspond half embedding wherein, the outer rolling circle of bearing links to each other with the inner wall of stable seat is fixed, stable seat cover is established in the outside of mount pad, just the outer circumference symmetry of stable seat is provided with slider two, slider two slide to set up in corresponding spout two of just seting up on the inner wall of protection casing with it.
Further, as a preferred option, the elastic flexible membrane is a horn-shaped revolving body which is made of a waterproof material, one end of the small opening of the elastic flexible membrane is sleeved on the stable seat in a sealing manner, and one end of the large opening of the elastic flexible membrane is fixed at the joint of the device body and the connecting shell in a sealing manner.
Preferably, a top cover is fixed to the top of the device body, and a battery pack is embedded in the top cover.
Further, as preferred, still include the controller, the controller is in micro motor one, micro motor two, battery pack and electric telescopic handle electrical connection respectively.
Compared with the prior art, the invention has the beneficial effects that: the spiral sampling assembly arranged in the device can control the micro motor I and the micro motor II to rotate through the controller, so that the outer wall-broken shell can continuously rotate in the same direction under the driving of the micro motor I, and the inner wall-broken shell can rotate in the alternate directions of clockwise and anticlockwise under the driving of the micro motor II, thereby improving the crushing efficiency, improving the crushing effect, facilitating the later stage of taking out the inner wall-broken shell from the outer wall-broken shell without clamping the shell; in addition, an oscillator is fixed in a closed space formed by the spiral cutter head and the sealing seat in the device, so that the spiral cutter head can be oscillated by the oscillator, the wall breaking of agricultural products can be more easily realized by the spiral cutter head, and the agricultural products can enter the device for sampling; in addition, the device is also provided with an elastic telescopic film which is made of waterproof materials, so that the situation that the precise parts in the device are polluted in the sampling process of agricultural products is avoided, and the service life of the device is prolonged.
Drawings
FIG. 1 is a schematic perspective view of a sampling device for microorganism detection of agricultural products;
FIG. 2 is a schematic plan view of a sampling device for microbial detection of agricultural products;
FIG. 3 is an enlarged lower half of FIG. 2;
FIG. 4 is a schematic diagram of a spiral sampling assembly of a sampling device for microbiological testing of agricultural products;
in the figure: 1. a device main body; 2. a top cover; 3. a connecting shell; 4. a protective cover; 5. a helical sampling assembly; 6. a controller; 7. an electric telescopic rod; 8. a fixed seat; 9. a first micro motor; 10. a first sliding chute; 11. a first sliding block; 12. a mounting seat; 13. a second micro motor; 14. an outer broken wall shell; 15. an inner broken wall shell; 16. an elastic stretch film; 17. a stabilizing base; 18. a hollow shaft; 19. a second chute; 20. a second sliding block; 21. breaking the wall of the knife edge; 22. a ring seat; 23. a feeding hole; 24. a discharge hole; 25. sealing a seat; 26. a helical cutter head; 27. an oscillator.
Detailed Description
Referring to fig. 1 to 4, in an embodiment of the present invention, a sampling device for detecting microorganisms in agricultural products includes a device main body 1, an electric telescopic rod 7, a first micro motor 9, a second micro motor 13, and a spiral sampling assembly 5, wherein a connection shell 3 is connected to a protective cover 4 below the device main body 1, the connection shell 3, and the protective cover 4 are all hollow cylinders so as to accommodate the electric telescopic rod and the spiral sampling assembly, the electric telescopic rod 7 is fixed to an inner top of the device main body 1 so as to drive the first micro motor 9 disposed at an output end of the device main body to perform a lifting linear motion, an installation seat 12 is fixed to an output end of the first micro motor 9, and the second micro motor 13 is embedded below the installation seat 12;
The spiral sampling assembly 5 comprises an outer wall breaking shell 14 and an inner wall breaking shell 15, wherein the outer wall breaking shell 14 is connected with the mounting seat 12 through a hollow shaft 18, and the inner wall breaking shell 15 is fixedly connected with the output end of the second micro motor 13;
the inner wall-breaking shell 15 is coaxially disposed inside the outer wall-breaking shell 14, and a gap is left between the inner wall-breaking shell 15 and the outer wall-breaking shell 14 so that the crushed parts of the agricultural products enter therein.
As shown in fig. 4, the outer wall-breaking shell 14 is a revolving body with openings at the upper and lower sides, wherein the upper opening is used for accommodating the inner wall-breaking shell 15, and the lower opening is a discharge hole 24;
two groups of ring seats 22 are symmetrically fixed on the outer circumference of the outer broken wall casing 14, wherein the upper ring seat 22 is used for being fixedly connected with a hollow shaft, and the lower ring seat 22 is provided with a plurality of through holes so as to be detachably connected with a sealing seat 25 tightly abutted against the lower part of the outer broken wall casing 14 by bolts;
the below of sealing seat 25 is fixed with screw cutter head 26, be fixed with oscillator 27 in the airtight space that screw cutter head 26 and sealing seat 25 constitute to vibrate screw cutter head 26 through oscillator 27, make screw cutter head 26 realize the broken wall to agricultural product more easily, thereby enter into its inside and take a sample.
As a preferred embodiment, the wall-breaking blades 21 are spirally distributed on the inner and outer circumferences of the outer wall-breaking shell 14 and the outer circumference of the inner wall-breaking shell 15, the wall-breaking blades 21 are non-continuous, the wall-breaking blades on the inner circumference of the outer wall-breaking shell 14 are not in contact with the wall-breaking blades on the outer circumference of the inner wall-breaking shell 15, the wall-breaking blades on the outer circumference of the outer wall-breaking shell 14 are used for breaking the wall of the agricultural products, and the wall-breaking blades on the inner circumference of the outer wall-breaking shell 14 and the wall-breaking blades on the outer circumference of the inner wall-breaking shell 15 are used for further chopping the samples entering into the wall-breaking blades, so that the samples are sufficiently crushed and juice is separated out.
In this embodiment, a plurality of feeding holes 23 are formed in the outer circumference of the outer wall breaking wall 14 along the radial direction thereof, and the feeding holes 23 are disposed to avoid the wall breaking blade 21.
As a preferred embodiment, the outer broken-wall shell 14 can continuously rotate circumferentially in the same direction under the driving of the first micro motor 9, and the inner broken-wall shell 15 can rotate circumferentially in alternate clockwise and counterclockwise directions under the driving of the second micro motor 13, so that the crushing efficiency is improved, the crushing effect is improved, and the outer broken-wall shell 14 can be taken out conveniently at a later stage without being jammed.
In order to improve the linear flexible stability of electric telescopic handle, electric telescopic handle 7's output is fixed with fixing base 8, fixed embedding has a micro motor 9 in the fixing base 8, the output of micro motor 9 is fixed with mount pad 12, the outer circumference symmetry of fixing base 8 is provided with slider 11, slider 11 slides and sets up in corresponding and the spout 10 of seting up on the inner wall of device body 1 with it.
In this embodiment, firm and flexible membrane 16 of elasticity still are provided with in the outside of mount pad 12, firm includes bearing, stable seat 17 and two 20 sliders, two ring channels have been seted up to the outer circumference of mount pad 12, so that the bearing can correspond half embedding wherein, the outer rolling circle of bearing links to each other with the inner wall of stable seat 17 is fixed, stable seat 17 cover is established in the outside of mount pad 12, just the outer circumference symmetry of stable seat 17 is provided with two 20 sliders, two 20 sliders slide to set up in it is corresponding and set up in spout two 19 on the inner wall of protection casing 4.
In this embodiment, the elastic extensible film 16 is a horn-shaped revolving body made of a waterproof material, one end of the elastic extensible film 16 at the small opening is sealed and sleeved on the stabilizing base 17, and one end of the elastic extensible film 16 at the large opening is sealed and fixed at the joint of the device body 1 and the connecting shell 3, so that the situation that the precise parts in the device are polluted in the sampling process of agricultural products is avoided.
In this embodiment, a top cover 2 is fixed to the top of the device body 1, and a battery pack is embedded in the top cover 2.
In this embodiment, the electric shock absorber further includes a controller 6, the controller 6 is electrically connected to the first micro motor 9, the second micro motor 13, the battery module and the electric telescopic rod 7, and it should be noted that the oscillator is an integral device and has a battery pack and a switch.
In the sampling process, the device is aligned to agricultural products, the controller controls the electric telescopic rod 7 to move, so as to drive the spiral cutter head to carry out lifting motion, so as to adjust the wall breaking depth of the agricultural products, realize multi-depth sampling, in addition, the controller controls the micro motor I and the micro motor II to rotate, so that the outer wall breaking shell 14 can continuously carry out circumferential rotation in the same direction under the driving of the micro motor I9, the inner wall breaking shell 15 can carry out circumferential rotation in clockwise and anticlockwise alternate directions under the driving of the micro motor II 13, so as to improve the crushing efficiency, simultaneously, the crushing effect is also improved, the outer wall breaking shell 14 can be conveniently taken out in the later period without clamping the shell, in addition, an oscillator 27 is fixed in a closed space formed by the spiral cutter head 26 and the seal seat 25, so as to oscillate the spiral cutter head 26 through the oscillator 27, so that the spiral cutter head 26 can more easily realize the agricultural products, thereby enter into its inside and take a sample, at broken wall in-process, the sample enters into the clearance between interior broken wall shell 15 and the outer broken wall shell 14 through the pan feeding hole, when taking out the sample, it can to dismantle the seat of sealing.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered as the technical solutions and the inventive concepts of the present invention within the technical scope of the present invention.
Claims (5)
1. A sampling device for agricultural product microorganism detection comprises a device main body, an electric telescopic rod, a first micro motor, a second micro motor and a spiral sampling assembly, wherein a connecting shell is connected with a protective cover below the device main body, and the device main body, the connecting shell and the protective cover are all hollow cylinders so as to accommodate the electric telescopic rod and the spiral sampling assembly;
the spiral sampling assembly comprises an outer wall breaking shell and an inner wall breaking shell, wherein the outer wall breaking shell is connected with the mounting base through a hollow shaft, and the inner wall breaking shell is fixedly connected with the output end of the micro motor II;
The inner wall breaking shell is coaxially arranged inside the outer wall breaking shell, and a gap is reserved between the inner wall breaking shell and the outer wall breaking shell so that the broken parts of the agricultural products can enter the gap;
the outer wall breaking shell is a revolving body with openings at the upper part and the lower part, wherein the upper opening is used for accommodating the inner wall breaking shell, and the lower opening is a discharge hole;
two groups of ring seats are symmetrically fixed on the outer circumference of the outer broken wall shell, wherein the upper ring seat is used for being fixedly connected with the hollow shaft, and the lower ring seat is provided with a plurality of through holes so as to be detachably fixedly connected with the sealing seat tightly abutted against the lower part of the outer broken wall shell by adopting bolts;
a spiral cutter head is fixed below the sealing seat, and an oscillator is fixed in a closed space formed by the spiral cutter head and the sealing seat so as to vibrate the spiral cutter head through the oscillator;
the inner circumference and the outer circumference of the outer broken wall shell and the outer circumference of the inner broken wall shell are both provided with wall breaking blades in a spiral shape, the wall breaking blades are discontinuous, and the wall breaking blades on the inner circumference of the outer broken wall are not contacted with the wall breaking blades on the outer circumference of the inner broken wall;
a plurality of feeding holes are formed in the outer circumference of the outer broken shell wall along the radial direction of the outer broken shell wall, and the feeding holes are formed in a manner of avoiding the broken wall cutting edge;
The outer wall-breaking shell can continuously rotate in the same direction in the circumferential direction under the drive of the first micro motor, and the inner wall-breaking shell can rotate in the circumferential direction in clockwise and anticlockwise alternate directions under the drive of the second micro motor;
the output end of the electric telescopic rod is fixed with a fixing seat, a first micro motor is fixedly embedded in the fixing seat, the output end of the first micro motor is fixed with a mounting seat, first sliding blocks are symmetrically arranged on the outer circumference of the fixing seat, and the first sliding blocks are slidably arranged in first sliding grooves which correspond to the first sliding blocks and are formed in the inner wall of the device body.
2. The sampling device for agricultural product microorganism detection according to claim 1, wherein a stabilizing member and an elastic expansion film are further arranged outside the mounting seat, the stabilizing member comprises a bearing, a stabilizing seat and a second sliding block, two annular grooves are formed in the outer circumference of the mounting seat, so that the bearing can be half embedded into the fixing seat correspondingly, an outer rotating ring of the bearing is fixedly connected with the inner wall of the stabilizing seat, the stabilizing seat is sleeved outside the mounting seat, the second sliding block is symmetrically arranged on the outer circumference of the stabilizing seat, and the second sliding block is slidably arranged in a second sliding groove which corresponds to the second sliding groove and is formed in the inner wall of the protective cover.
3. The sampling device for agricultural product microorganism detection according to claim 2, wherein the elastic retractable film is a horn-shaped rotator made of waterproof material, one end of the elastic retractable film at the smaller opening is sleeved on the stabilizing seat in a sealing manner, and one end of the elastic retractable film at the larger opening is fixed at the joint of the device body and the connecting shell in a sealing manner.
4. A sampling device for agricultural product microbiological detection according to claim 1 wherein a top cover is secured to the top of the device body, the top cover having a battery pack embedded therein.
5. The sampling device for agricultural product microorganism detection according to claim 1, further comprising a controller, wherein the controller is electrically connected to the first micro-motor, the second micro-motor, the battery module and the electric telescopic rod respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010112878.XA CN111141550B (en) | 2020-02-24 | 2020-02-24 | Sampling device for detecting microorganisms of agricultural products |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010112878.XA CN111141550B (en) | 2020-02-24 | 2020-02-24 | Sampling device for detecting microorganisms of agricultural products |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111141550A CN111141550A (en) | 2020-05-12 |
| CN111141550B true CN111141550B (en) | 2022-06-28 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202010112878.XA Expired - Fee Related CN111141550B (en) | 2020-02-24 | 2020-02-24 | Sampling device for detecting microorganisms of agricultural products |
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| Country | Link |
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| CN (1) | CN111141550B (en) |
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|---|---|---|---|---|
| JP2015147170A (en) * | 2014-02-05 | 2015-08-20 | 安井器械株式会社 | Sample crushing tool and sample crushing device |
| CN205731045U (en) * | 2016-06-25 | 2016-11-30 | 乌兰察布职业学院 | A kind of blender for food inspection |
| CN107817145A (en) * | 2017-10-31 | 2018-03-20 | 周航洋 | It is a kind of to detect the residual sampling equipment for making mashed potatoes of agriculture |
| CN108593359A (en) * | 2018-05-19 | 2018-09-28 | 庄明磊 | A kind of food safety detection sampler |
| CN208060183U (en) * | 2018-03-21 | 2018-11-06 | 蒙牛高科乳制品（北京）有限责任公司 | A kind of food safety detection sampler |
| CN109959530A (en) * | 2019-01-25 | 2019-07-02 | 航天建筑设计研究院有限公司 | A kind of engineering geologic investigation sampler |
| CN110006688A (en) * | 2019-05-10 | 2019-07-12 | 王兆群 | A kind of beet sampler |
| CN209280415U (en) * | 2019-01-07 | 2019-08-20 | 程春芝 | A kind of agricultural product security detection crushing device |
| CN210037764U (en) * | 2019-05-17 | 2020-02-07 | 凭祥出入境检验检疫局综合技术服务中心 | Agricultural product food pesticide and veterinary drug residue detection device |
| CN210108811U (en) * | 2019-05-20 | 2020-02-21 | 杨文耀 | Food quality safety inspection's crushing sampling device |
-
2020
- 2020-02-24 CN CN202010112878.XA patent/CN111141550B/en not_active Expired - Fee Related
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2015147170A (en) * | 2014-02-05 | 2015-08-20 | 安井器械株式会社 | Sample crushing tool and sample crushing device |
| CN205731045U (en) * | 2016-06-25 | 2016-11-30 | 乌兰察布职业学院 | A kind of blender for food inspection |
| CN107817145A (en) * | 2017-10-31 | 2018-03-20 | 周航洋 | It is a kind of to detect the residual sampling equipment for making mashed potatoes of agriculture |
| CN208060183U (en) * | 2018-03-21 | 2018-11-06 | 蒙牛高科乳制品（北京）有限责任公司 | A kind of food safety detection sampler |
| CN108593359A (en) * | 2018-05-19 | 2018-09-28 | 庄明磊 | A kind of food safety detection sampler |
| CN209280415U (en) * | 2019-01-07 | 2019-08-20 | 程春芝 | A kind of agricultural product security detection crushing device |
| CN109959530A (en) * | 2019-01-25 | 2019-07-02 | 航天建筑设计研究院有限公司 | A kind of engineering geologic investigation sampler |
| CN110006688A (en) * | 2019-05-10 | 2019-07-12 | 王兆群 | A kind of beet sampler |
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| CN210108811U (en) * | 2019-05-20 | 2020-02-21 | 杨文耀 | Food quality safety inspection's crushing sampling device |
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| CN111141550A (en) | 2020-05-12 |
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Granted publication date: 20220628 |