CN113702113B - Automatic sampling self-cleaning device - Google Patents
Automatic sampling self-cleaning device Download PDFInfo
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- CN113702113B CN113702113B CN202110968785.1A CN202110968785A CN113702113B CN 113702113 B CN113702113 B CN 113702113B CN 202110968785 A CN202110968785 A CN 202110968785A CN 113702113 B CN113702113 B CN 113702113B
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- plate
- scraping
- objective table
- cleaning
- mounting plate
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- 238000005070 sampling Methods 0.000 title claims abstract description 42
- 238000004140 cleaning Methods 0.000 title claims abstract description 40
- 238000007790 scraping Methods 0.000 claims abstract description 37
- 238000007599 discharging Methods 0.000 claims abstract description 24
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 12
- 238000001514 detection method Methods 0.000 claims abstract description 7
- 239000011521 glass Substances 0.000 claims description 14
- 239000000463 material Substances 0.000 claims description 8
- 238000000034 method Methods 0.000 claims description 6
- 238000003825 pressing Methods 0.000 claims description 6
- 239000012530 fluid Substances 0.000 claims description 4
- 239000011538 cleaning material Substances 0.000 claims description 2
- 238000002360 preparation method Methods 0.000 claims description 2
- 239000011344 liquid material Substances 0.000 claims 1
- 238000004519 manufacturing process Methods 0.000 abstract description 7
- 239000007788 liquid Substances 0.000 description 8
- 238000009826 distribution Methods 0.000 description 4
- 239000007787 solid Substances 0.000 description 4
- 239000002245 particle Substances 0.000 description 3
- 239000003814 drug Substances 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 238000010923 batch production Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000009827 uniform distribution Methods 0.000 description 1
- 239000002699 waste material 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
- G01N1/10—Devices for withdrawing samples in the liquid or fluent state
- G01N1/20—Devices for withdrawing samples in the liquid or fluent state for flowing or falling materials
- G01N1/2035—Devices for withdrawing samples in the liquid or fluent state for flowing or falling materials by deviating part of a fluid stream, e.g. by drawing-off or tapping
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B1/00—Cleaning by methods involving the use of tools
- B08B1/30—Cleaning by methods involving the use of tools by movement of cleaning members over a surface
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B13/00—Accessories or details of general applicability for machines or apparatus for cleaning
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/28—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q
- G01N1/34—Purifying; Cleaning
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/28—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q
- G01N1/38—Diluting, dispersing or mixing samples
-
- 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
- G01N1/10—Devices for withdrawing samples in the liquid or fluent state
- G01N2001/1006—Dispersed solids
-
- 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
- G01N1/10—Devices for withdrawing samples in the liquid or fluent state
- G01N1/20—Devices for withdrawing samples in the liquid or fluent state for flowing or falling materials
- G01N1/2035—Devices for withdrawing samples in the liquid or fluent state for flowing or falling materials by deviating part of a fluid stream, e.g. by drawing-off or tapping
- G01N2001/205—Devices for withdrawing samples in the liquid or fluent state for flowing or falling materials by deviating part of a fluid stream, e.g. by drawing-off or tapping using a valve
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Health & Medical Sciences (AREA)
- Biochemistry (AREA)
- Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Molecular Biology (AREA)
- Sampling And Sample Adjustment (AREA)
Abstract
The invention relates to an automatic sampling self-cleaning device which comprises a propelling mechanism, a feeding mechanism, a table panel, a water scraping mechanism, a cleaning pipe orifice, a collecting funnel, a small funnel and a feeding pipe, wherein the feeding mechanism is arranged on the table panel; the propelling mechanism is arranged on the deck plate, and a bell mouth of the discharging mechanism is connected with the feeding pipe and is arranged on the deck plate; the water scraping mechanism is arranged at the front end of the table panel; the cleaning pipe orifice is aligned with one end of a drainage groove of the propulsion mechanism; the collecting funnel is arranged on the lower bottom surface of the table panel; the small funnel is arranged on the table top plate, aligned with the other end of the drain tank and arranged on the opposite side of the cleaning pipe orifice. The invention solves the problems of untimely manual sampling, low sampling efficiency, high labor intensity, no guarantee of personal safety and the like, improves the automation level of the production line, and prepares for high-precision detection of the product quality.
Description
Technical Field
The invention belongs to the field of automatic sampling of energetic materials, and particularly relates to an automatic sampling and self-cleaning device, in particular to a device for sampling and uniformly distributing solid particles in various solid-liquid mixed liquids on a test vessel, which is suitable for automatic extraction and automatic uniform distribution of samples in various solid-liquid mixed liquids and off-line detection of an instrument to be detected.
Background
At present, in the field of preparation of energetic materials, manual sampling is generally adopted for detecting the quality of products, the phenomenon that products are often deformed due to irregular sampling occurs, and partial products often shrink or expand due to environmental changes, so that the deviation of detection results is large, and the on-site high-quality and high-efficiency production cannot be guided. The waste of raw materials is serious often caused during batch production, the production cost is high, the safety of on-site sampling personnel cannot be guaranteed, and therefore, the high-efficiency automatic sampling device is urgently required to replace the traditional manual sampling work, so that the problems that manual sampling is not timely, the sampling efficiency is low, the labor intensity of workers is high, the personal safety is not guaranteed and the like are solved.
Disclosure of Invention
The invention provides an automatic sampling self-cleaning device, which aims to solve the technical problems that: the problems of untimely manual sampling, low sampling efficiency, high labor intensity of workers, no guarantee of personal safety and the like are solved.
In order to solve the above technical problems, the present invention provides an automatic sampling self-cleaning device, which is characterized by comprising: the device comprises a propelling mechanism 1, a feeding mechanism 2, a table panel 3, a water scraping mechanism 4, a cleaning pipe orifice 5, a collecting funnel 6, a small funnel 7 and a feeding pipe 8; the propelling mechanism 1 is arranged on the deck plate 3, the discharging mechanism 2 is arranged on the deck plate 3, one end of a bell mouth 203 of the discharging mechanism 2 is connected with the feeding pipe 8, and the other end is matched with a glass slide of the propelling mechanism 1 for discharging; the water scraping mechanism 4 is arranged at the front end of the table panel 3 and is used for cleaning materials on the propelling mechanism 1; the cleaning pipe orifice 5 is aligned with one end of the water discharge groove 105 of the propulsion mechanism 1; the collecting hopper 6 is arranged on the lower bottom surface of the table panel 3; the small funnel 7 is mounted on the deck plate 3 in alignment with the other end of the drain tank 105 and on the opposite side of the cleaning nozzle.
The beneficial effects are that: according to the invention, the automatic sampling and automatic cleaning of the mixed liquid solid sample are finished through the procedures of automatic sample collection, automatic sample distribution, automatic sample conveying, automatic sample cleaning and the like, the sample distribution is carried out in a mode of gravity self-flowing of mixed state materials, the automatic sample conveying is finished in a mode of a screw motor, and the cleaning of medicine particles and fluid media is carried out by adopting a wiper plate. The invention solves the problems of untimely manual sampling, low sampling efficiency, high labor intensity of workers, no guarantee of personal safety and the like, improves the automation level of a production line, and prepares for high-precision detection of product quality.
Drawings
FIG. 1 is a front three-axis perspective view of the automatic sampling self-cleaning apparatus and technique of the present invention.
Fig. 2 is a left side cross-sectional view of the auto-sampling self-cleaning apparatus and technique of the present invention.
In fig. 1, a pushing mechanism 1, a discharging mechanism 2, a panel 3, a water scraping mechanism 4, a cleaning pipe orifice 5, a collecting funnel 6, a small funnel 7, a feeding pipe 8, a discharging cylinder 201, a mounting plate 202 and a bell mouth 203.
In fig. 2, 101 motor, 102 screw, 103 stage, 104 slide, 105 drain tank, 401 upper scraper, 402 lower scraper, 403 press plate, 404 upper mounting plate, 405 mounting pin, 406 spring, 407 scraper cylinder.
Detailed Description
To make the objects, contents and advantages of the present invention more apparent, the following detailed description of the specific embodiments of the present invention will be given.
The invention provides an automatic sampling self-cleaning device, which comprises: the device comprises a propelling mechanism 1, a feeding mechanism 2, a table panel 3, a water scraping mechanism 4, a cleaning pipe orifice 5, a collecting funnel 6, a small funnel 7 and a feeding pipe 8;
the discharging mechanism 2 comprises a discharging cylinder 201, a mounting plate 202 and a bell mouth 203;
the propelling mechanism 1 comprises a motor 101, a screw 102, an objective table 103, a glass slide 104 and a drainage tank 105;
the wiper mechanism 4 comprises an upper wiper plate 401, a lower wiper plate 402, a pressing plate 403, an upper mounting plate 404, a mounting pin 405, a spring 406 and a wiper cylinder 407;
the propelling mechanism 1 is arranged on the deck plate 3, and a bell mouth 203 of the discharging mechanism 2 is connected with the feeding pipe 8 and is arranged on the deck plate 3; the water scraping mechanism 4 is arranged at the front end of the table panel 3; the cleaning pipe orifice 5 is aligned with one end of the water discharge groove 105 of the propulsion mechanism 1; the collecting hopper 6 is arranged on the lower bottom surface of the table panel 3; the small funnel 7 is mounted on the deck plate 3 in alignment with the other end of the drain tank 105 and on the opposite side of the cleaning nozzle.
Wherein the objective table 103 is connected with the screw 102 through a screw nut, the glass slide 104 is embedded in the middle of the objective table 103, the motor 101 is connected with the screw, and the water draining groove 105 is arranged at the front end of the objective table 103;
the upper mounting plate 404 is mounted on the deck plate 3 through scraping cylinders 407, specifically, two scraping cylinders 407 are symmetrically mounted on two sides of the front part of the deck plate 3, and two ends of the upper mounting plate 404 are respectively fixed at the upper ends of the two scraping cylinders; the upper scraper 401 is connected to the upper mounting plate 404 by a mounting pin 405, and the upper scraper 401 is disposed below the upper mounting plate 404. A spring 406 is connected to the lower scraper 402 and is mounted to the front end of the deck plate 3, and a pressing plate 403 is fixed to the upper mounting plate 404.
The discharging cylinder 201 is arranged on one side of the table panel 3, a mounting plate 202 is arranged on the discharging cylinder, and a bell mouth is fixed at the end part of the mounting plate 202.
The working process of the automatic sampling self-cleaning device and the technical device is described as follows:
the initial position of the discharging cylinder 201 is in an extended state, and the initial position of the scraping cylinder 407 is in an extended state. During sampling, the discharging cylinder 201 starts to retract to drive the mounting plate 202 and the bell mouth 203 to move downwards and attach to the slide glass 104 of the propulsion mechanism 1, then the valve at the front end of the feeding pipe 8 is controlled to flow a proper amount of materials onto the slide glass 104, and when solid-liquid two-phase materials flow onto the slide glass 104, the discharging cylinder 201 stretches out to drive the bell mouth 203 to move upwards and separate from the slide glass 104. Then, the motor 101 of the pushing mechanism 1 starts to move to drive the objective table 103 to move towards the scraping device 4, and when the front end of the objective table 103 moves between the upper scraping plate 401 and the lower scraping plate 402, the motor 101 stops. At this time, the scraping cylinder 407 is retracted to drive the pressing plate to drive the lower scraping plate 402 to translate downwards to the objective table 103 to pass through. The motor 101 of the propulsion mechanism 1 is started again, so that the objective table 103 is driven to move beyond the lower scraping plate 402 to stop. The scraper cylinder 407 then extends, and the lower scraper 402 is attached to the lower surface of the stage 103 by the spring 406. The pushing mechanism 1 continues to move forward to the testing position during which the lower scraper 402 cleans the fluid under the stage 103. The scraper cylinder 407 retracts after the stage has completely passed, ready for sampling and self-cleaning.
After the sample is detected, the motor 101 is reversed to drive the objective table 103 to retract, the upper scraping plate 401 is attached to the surface of the objective table 103, samples on the surface of the objective table are scraped into the drainage tank 105 along with the movement of the objective table 103, the cleaning pipe orifice 5 is opened after the objective table 103 returns to the original position, the samples in the drainage tank 105 are collected through the small funnel 7, and the samples flow to the collection funnel 6 for collection.
According to the invention, the automatic sampling and automatic cleaning of the mixed liquid solid sample are finished through the procedures of automatic sample collection, automatic sample distribution, automatic sample conveying, automatic sample cleaning and the like, the sample distribution is carried out in a mode of gravity self-flowing of mixed state materials, the automatic sample conveying is finished in a mode of a screw motor, and the cleaning of medicine particles and fluid media is carried out by a wiper plate. The invention solves the problems of untimely manual sampling, low sampling efficiency, high labor intensity, no guarantee of personal safety and the like, improves the automation level of the production line, and prepares for high-precision detection of the product quality. The sampling frequency can be set according to the stability of the product quality, the product quality and the productivity can be effectively improved by timely sampling and quality detection, the production cost is reduced, the personal safety of operators is ensured, and the purposes of green, safe, high-quality and high-efficiency production are achieved.
The automatic sampling self-cleaning device and the automatic sampling self-cleaning technology can be used for automatic sampling and cleaning of various solid-liquid mixed solid samples.
The foregoing is merely a preferred embodiment of the present invention, and it should be noted that modifications and variations could be made by those skilled in the art without departing from the technical principles of the present invention, and such modifications and variations should also be regarded as being within the scope of the invention.
Claims (4)
1. An automatic sampling self-cleaning device, comprising: the device comprises a propelling mechanism (1), a discharging mechanism (2), a table panel (3), a water scraping mechanism (4), a cleaning pipe orifice (5), a collecting funnel (6), a small funnel (7) and a material supply pipe (8); the propelling mechanism (1) is arranged on the deck plate (3), the discharging mechanism (2) is arranged on the deck plate (3), one end of a bell mouth (203) of the discharging mechanism (2) is connected with the feeding pipe (8), and the other end of the bell mouth is matched with a glass slide of the propelling mechanism (1) for discharging; the water scraping mechanism (4) is arranged at the front end of the table panel (3) and is used for cleaning materials on the propelling mechanism (1); the cleaning pipe orifice (5) is aligned with one end of a drainage groove (105) of the propulsion mechanism (1); the collecting funnel (6) is arranged on the lower bottom surface of the table panel (3); the small funnel (7) is arranged on the table panel (3), aligned with the other end of the drainage groove (105) and arranged at the opposite side of the cleaning pipe orifice; the propelling mechanism (1) comprises a motor (101), a screw rod (102), an objective table (103), a glass slide (104) and a drainage groove (105); the objective table (103) is connected with the motor (101) through a lead screw (102), the glass slide (104) is embedded in the middle of the objective table (103), and the drainage groove (105) is arranged at the front end of the objective table (103); the wiper mechanism (4) comprises an upper wiper plate (401), a lower wiper plate (402), a pressing plate (403), an upper mounting plate (404), a mounting pin (405), a spring (406) and a wiper cylinder (407); the upper mounting plate (404) is mounted on the table top plate (3) through a scraping cylinder (407), the upper scraping plate (401) is connected with the upper mounting plate (404) through a mounting pin (405), a spring (406) is connected with the lower scraping plate (402) and is mounted at the front end of the table top plate (3), and a pressing plate (403) is fixed on the upper mounting plate (404); the upper scraping plate (401) is arranged below the upper mounting plate (404); the motor (101) of the propelling mechanism starts to move to drive the objective table (103) to move towards the scraping device, and when the front end of the objective table (103) moves between the upper scraping plate (401) and the lower scraping plate (402), the motor (101) stops; at the moment, the scraping cylinder (407) retracts to drive the pressing plate to drive the lower scraping plate (402) to translate downwards to the objective table (103) to pass through; the motor (101) of the propelling mechanism is started again to drive the objective table (103) to move beyond the lower scraping plate (402) to stop; the scraping cylinder (407) is extended out later, and the lower scraping plate (402) is attached to the lower surface of the objective table (103) under the action of the spring (406); the pushing mechanism continues to move forwards to a detection position, in the process, the lower scraping plate (402) cleans fluid below the objective table (103), and the scraping cylinder (407) retracts after the objective table passes completely, so that the self-cleaning preparation is prepared for sampling; after the sample is detected, the motor (101) rotates reversely to drive the objective table (103) to retract, the upper scraping plate (401) is attached to the surface of the objective table (103), samples on the surface of the objective table are scraped into the drainage groove (105) along with the movement of the objective table (103), the objective table (103) returns to the original position, the cleaning pipe orifice (5) is opened, the samples in the drainage groove (105) are collected through the small funnel (7), and the samples flow to the collection funnel (6) to be collected.
2. An automatic sampling self-cleaning device according to claim 1, characterized in that the discharging mechanism (2) comprises a discharging cylinder (201), a mounting plate (202) and a bell mouth (203); the discharging cylinder (201) is arranged on one side of the table panel (3), the mounting plate (202) is arranged on the discharging cylinder (201), and the bell mouth is fixed at the end part of the mounting plate (202).
3. An automatic sampling self-cleaning device according to claim 2, wherein during sampling, the discharging cylinder (201) starts to retract to drive the mounting plate (202) and the bell mouth (203) to move downwards and attach to the glass slide (104) of the propelling mechanism (1), then the front end valve of the feeding pipe (8) is controlled to flow a proper amount of material onto the glass slide (104), the two-phase solid-liquid material flows onto the glass slide (104), and the discharging cylinder (201) stretches out to drive the bell mouth (203) to move upwards to separate from the glass slide (104).
4. An automatic sampling self-cleaning device according to claim 1, wherein two scraping cylinders (407) are symmetrically arranged at two sides of the front part of the table panel (3), and two ends of the upper mounting plate (404) are respectively fixed at the upper ends of the two scraping cylinders.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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CN202110968785.1A CN113702113B (en) | 2021-08-23 | 2021-08-23 | Automatic sampling self-cleaning device |
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CN202110968785.1A CN113702113B (en) | 2021-08-23 | 2021-08-23 | Automatic sampling self-cleaning device |
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CN113702113A CN113702113A (en) | 2021-11-26 |
CN113702113B true CN113702113B (en) | 2023-12-12 |
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CN202110968785.1A Active CN113702113B (en) | 2021-08-23 | 2021-08-23 | Automatic sampling self-cleaning device |
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Citations (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4217780A (en) * | 1979-07-09 | 1980-08-19 | Ortho Diagnostic, Inc. | Automated, self-cleaning fluid sampling apparatus |
CN101476996A (en) * | 2009-01-19 | 2009-07-08 | 赣州虔东稀土集团股份有限公司 | Automatic sampling apparatus for rare earth magnetic powder |
CN105021442A (en) * | 2015-06-05 | 2015-11-04 | 青岛大学 | Automatic medical examination blood smear dyeing machine |
CN106706398A (en) * | 2017-02-08 | 2017-05-24 | 爱威科技股份有限公司 | Sample staining device |
CN107782588A (en) * | 2017-11-01 | 2018-03-09 | 青岛垚鑫实验室科技有限公司 | A kind of mobile example preparation system |
CN208843203U (en) * | 2018-10-17 | 2019-05-10 | 重庆市璧山区亚昌精密五金有限公司 | A kind of autoloader with self-cleaning function |
CN110282198A (en) * | 2019-07-03 | 2019-09-27 | 林桂全 | A kind of pet excrement automated cleaning and packing device |
CN111141557A (en) * | 2020-01-18 | 2020-05-12 | 重庆建工建材物流有限公司 | Automatic concrete sampling and cleaning device |
CN210774892U (en) * | 2019-08-13 | 2020-06-16 | 昆明医无界医疗网络科技有限公司 | Urine detection sampling device |
CN111999459A (en) * | 2020-08-25 | 2020-11-27 | 安徽清大云博环保科技有限公司 | Full-automatic water quality analyzer and working method thereof |
CN212420554U (en) * | 2020-04-27 | 2021-01-29 | 曹世华 | Numerical control machine tool convenient for cleaning and collecting scraps |
CN213456924U (en) * | 2020-09-30 | 2021-06-15 | 中建材资源与环境工程吉林有限公司 | Soil pollution detection device with self-cleaning structure |
-
2021
- 2021-08-23 CN CN202110968785.1A patent/CN113702113B/en active Active
Patent Citations (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4217780A (en) * | 1979-07-09 | 1980-08-19 | Ortho Diagnostic, Inc. | Automated, self-cleaning fluid sampling apparatus |
CN101476996A (en) * | 2009-01-19 | 2009-07-08 | 赣州虔东稀土集团股份有限公司 | Automatic sampling apparatus for rare earth magnetic powder |
CN105021442A (en) * | 2015-06-05 | 2015-11-04 | 青岛大学 | Automatic medical examination blood smear dyeing machine |
CN106706398A (en) * | 2017-02-08 | 2017-05-24 | 爱威科技股份有限公司 | Sample staining device |
CN107782588A (en) * | 2017-11-01 | 2018-03-09 | 青岛垚鑫实验室科技有限公司 | A kind of mobile example preparation system |
CN208843203U (en) * | 2018-10-17 | 2019-05-10 | 重庆市璧山区亚昌精密五金有限公司 | A kind of autoloader with self-cleaning function |
CN110282198A (en) * | 2019-07-03 | 2019-09-27 | 林桂全 | A kind of pet excrement automated cleaning and packing device |
CN210774892U (en) * | 2019-08-13 | 2020-06-16 | 昆明医无界医疗网络科技有限公司 | Urine detection sampling device |
CN111141557A (en) * | 2020-01-18 | 2020-05-12 | 重庆建工建材物流有限公司 | Automatic concrete sampling and cleaning device |
CN212420554U (en) * | 2020-04-27 | 2021-01-29 | 曹世华 | Numerical control machine tool convenient for cleaning and collecting scraps |
CN111999459A (en) * | 2020-08-25 | 2020-11-27 | 安徽清大云博环保科技有限公司 | Full-automatic water quality analyzer and working method thereof |
CN213456924U (en) * | 2020-09-30 | 2021-06-15 | 中建材资源与环境工程吉林有限公司 | Soil pollution detection device with self-cleaning structure |
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