CN113588339A - Non-contact medicament sampling device - Google Patents
Non-contact medicament sampling device Download PDFInfo
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- CN113588339A CN113588339A CN202110811359.7A CN202110811359A CN113588339A CN 113588339 A CN113588339 A CN 113588339A CN 202110811359 A CN202110811359 A CN 202110811359A CN 113588339 A CN113588339 A CN 113588339A
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- valve
- air inlet
- air outlet
- air
- storage tank
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- 238000005070 sampling Methods 0.000 title claims abstract description 42
- 239000003814 drug Substances 0.000 title claims abstract description 14
- 239000007788 liquid Substances 0.000 claims abstract description 76
- 239000002184 metal Substances 0.000 claims description 39
- 229910052751 metal Inorganic materials 0.000 claims description 39
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 10
- 229940079593 drug Drugs 0.000 claims 5
- 210000001503 joint Anatomy 0.000 claims 1
- 239000003153 chemical reaction reagent Substances 0.000 abstract description 8
- 238000000034 method Methods 0.000 abstract description 8
- 239000000126 substance Substances 0.000 abstract description 6
- 210000005077 saccule Anatomy 0.000 abstract description 3
- 238000001125 extrusion Methods 0.000 description 3
- 230000003139 buffering effect Effects 0.000 description 2
- 210000003128 head Anatomy 0.000 description 2
- 238000005086 pumping Methods 0.000 description 2
- 231100000331 toxic Toxicity 0.000 description 2
- 230000002588 toxic effect Effects 0.000 description 2
- 239000002253 acid Substances 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 231100001261 hazardous Toxicity 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 238000000844 transformation Methods 0.000 description 1
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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
- G01N1/14—Suction devices, e.g. pumps; Ejector devices
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01L—CHEMICAL OR PHYSICAL LABORATORY APPARATUS FOR GENERAL USE
- B01L3/00—Containers or dishes for laboratory use, e.g. laboratory glassware; Droppers
- B01L3/02—Burettes; Pipettes
- B01L3/021—Pipettes, i.e. with only one conduit for withdrawing and redistributing liquids
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- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Biochemistry (AREA)
- Physics & Mathematics (AREA)
- Analytical Chemistry (AREA)
- Hydrology & Water Resources (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Clinical Laboratory Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Sampling And Sample Adjustment (AREA)
Abstract
The invention discloses a non-contact medicament sampling device, which relates to the field of sampling devices, and adopts the technical scheme that the non-contact medicament sampling device comprises an inflatable balloon, an air inlet valve, a liquid storage tank, an air outlet valve and a vacuum pump; the air outlet of the inflatable balloon is communicated with the air inlet of the air inlet valve; the upper part of the liquid storage tank is provided with a liquid outlet pipe which is communicated outwards; a piston is matched in the liquid storage tank in a sliding way, and the end surface of the lower end of the liquid storage tank is respectively provided with an air inlet hole and an air outlet hole; the air outlet of the air inlet valve is communicated to the air inlet hole, the air inlet of the air outlet valve is communicated to the air outlet hole, and the air outlet of the air outlet valve is communicated with the air inlet of the vacuum pump. The non-contact sampling of liquid by utilizing the inflatable saccule, the liquid storage tank, the air inlet valve and the air outlet valve is particularly suitable for sampling of chemical and medical reagents, the sampling dosage accuracy is high, and the sampling process is safe and reliable.
Description
Technical Field
The invention relates to the field of sampling devices, in particular to a non-contact type medicament sampling device.
Background
At present, a rubber head dropper is widely adopted, the structure is simple, the sampling is convenient, but in the sampling process, the rubber head is used as an extrusion part and a holding part, and the problem of unstable holding or inaccurate extrusion force easily occurs because the extrusion force cannot be precisely controlled. Multiple sampling increases the risk of chemical and medical personnel becoming infected with toxic, hazardous solutions.
Disclosure of Invention
In order to solve the technical problems, the invention provides a non-contact type medicament sampling device which realizes non-contact type sampling of liquid by utilizing an inflatable balloon, a liquid storage tank, an air inlet valve and an air outlet valve, is particularly suitable for sampling of chemical and medical reagents, and has high sampling dose accuracy and safe and reliable sampling process.
The technical scheme adopted by the invention for solving the technical problems is as follows: a non-contact medicament sampling device comprises an inflatable balloon, an air inlet valve, a liquid storage tank, an air outlet valve and a vacuum pump;
the air outlet of the inflatable balloon is communicated with the air inlet of the air inlet valve;
a liquid outlet pipe communicated outwards is arranged at the upper part of the liquid storage tank, and the liquid outlet pipe is provided with a liquid outlet valve; a piston is matched in the liquid storage tank in a sliding manner, and the end surface of the lower end of the liquid storage tank is respectively provided with an air inlet and an air outlet;
the air outlet of the air inlet valve is communicated to the air inlet hole, the air inlet of the air outlet valve is communicated to the air outlet hole, and the air outlet of the air outlet valve is communicated with the air inlet of the vacuum pump.
Before sampling, storing the liquid to be taken above a piston of the liquid storage tank; at the moment, the air inlet valve and the air outlet valve are both closed, and the vacuum pump does not work; during sampling, the air inlet valve and the liquid outlet valve are opened, the inflatable balloon is squeezed, the inflatable balloon inflates the liquid storage tank below the piston, the piston is pushed upwards after the liquid storage tank below the piston is inflated, and then liquid above the piston flows out of the liquid outlet pipe, and the inflation amount is constant after the inflatable balloon is squeezed once, so that quantitative liquid can be extracted from the liquid storage tank every time, the sampling amount is controllable, and the possibility that hands contact the liquid is avoided; after the sampling, the air inlet valve is closed, the air outlet valve is opened simultaneously, the vacuum pump is started, the air below the piston of the liquid storage tank is pumped out by the vacuum pump, the piston falls back downwards again because the air below the piston is pumped out, and the liquid outlet valve is closed after the piston falls back.
Preferably, the air storage cavity is arranged between the inflatable balloon and the air inlet valve. The air storage cavity is used for buffering air, so that the phenomenon that liquid is sprayed out of the liquid storage tank due to the fact that air pressure below the piston is suddenly increased in the process of extruding the inflatable balloon is avoided.
Preferably, the air inlet valve and the air outlet valve are electromagnetic valves, each electromagnetic valve comprises a valve cavity, a control cavity, a valve core, an electromagnet and an iron core, an air inlet and an air outlet are respectively formed in two ends of the valve cavity, the front end of the control cavity is communicated to one side of the valve cavity, the valve core is in sliding fit with the control cavity, when the front end of the valve core slides to the valve cavity, the air inlet and the air outlet of the valve cavity are separated, a first spring is sleeved outside the valve core, the valve core slides towards the valve cavity through the first spring, the electromagnet is fixed at the rear end of the valve core, and the iron core is arranged at the rear end of the control cavity corresponding to the electromagnet.
Under the normal state, under the action of the first spring, the valve core cuts off a channel between the air inlet and the air outlet; the electromagnet generates a magnetic field under the condition of being electrified, the iron core and the electromagnet are attracted mutually, the electromagnetic attraction overcomes the elastic force of the first spring, and the electromagnet drives the valve core to open a channel between the air inlet and the air outlet, so that the valve body can be closed and opened.
Preferably, the bottom of the liquid storage tank is provided with a limit switch for controlling the vacuum pump. When the piston slides downwards to be in contact with the limit switch, the limit switch closes the operation of the vacuum pump, and the vacuum pump is prevented from continuously pumping air below the piston.
Preferably, the limit switch includes a sliding cylinder, a sliding pin, a first elastic metal sheet and a second elastic metal sheet, the upper end of the sliding cylinder is butted to the bottom of the liquid storage tank, the sliding pin is in sliding fit in the sliding cylinder, the upper end of the sliding pin extends into the liquid storage tank, the first elastic metal sheet and the second elastic metal sheet extend from two sides of the sliding cylinder to the inside, the inner ends of the first elastic metal sheet and the second elastic metal sheet are in up-down overlapping and touching connection in a normal state, the inner end of the second elastic metal sheet is located at the lower side of the inner end of the first elastic metal sheet, and the lower end of the sliding pin is arranged corresponding to the inner end of the second elastic metal sheet.
In a normal state, the first elastic metal sheet and the second elastic metal sheet are overlapped and touched to be connected, a circuit of the vacuum pump is kept to be communicated, the vacuum pump can normally work, the piston slides downwards to a certain position and touches the sliding pin, the piston pushes the sliding pin downwards, the sliding pin pushes the second elastic metal sheet, the second elastic metal sheet is separated from the first elastic metal sheet, the circuit of the vacuum pump is disconnected, and the vacuum pump stops working.
Preferably, the side wall of the sliding pin is axially provided with a limiting groove and a small-diameter section, and the inner wall of the sliding cylinder is respectively provided with a limiting bulge and a spring seat; the limiting protrusion extends into the limiting groove; the spring seat of the sliding barrel extends to the bottom of the small-diameter section, a second spring is sleeved outside the small-diameter section, and two ends of the second spring are respectively abutted to the top of the small-diameter section and the upper table surface of the spring seat. The minor diameter section is convenient for set up the second spring, and the spacing groove is used for spacing the gliding stroke from top to bottom of sliding pin.
The invention has the advantages that: the invention utilizes the inflatable saccule, the liquid storage tank, the air inlet valve, the liquid outlet valve and the air outlet valve to sample liquid in a non-contact way, is particularly suitable for sampling chemical and medical reagents, and has high sampling dosage accuracy and safe and reliable sampling process.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only 3 of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a schematic diagram of an embodiment of the present invention;
FIG. 2 is a limit switch of an embodiment of the present invention;
FIG. 3 is a solenoid valve according to an embodiment of the present invention;
the pneumatic balloon comprises an inflatable balloon 1, an air storage cavity 2, an air inlet valve 3, an air outlet valve 4, a vacuum pump 5, a liquid storage tank 6, a piston 7, a liquid outlet pipe 8, a liquid outlet valve 9, a second spring 10, a sliding pin 11, a sliding cylinder 12, a second elastic metal sheet 13, a first elastic metal sheet 14, a small-diameter section 15, a spring seat 16, a limiting groove 17, a limiting bulge 18, a valve cavity 19, a valve core 20, a first spring 21, an electromagnet 22 and an iron core 23.
Detailed Description
For the purpose of enhancing the understanding of the present invention, the present invention will be described in further detail with reference to the accompanying drawings and examples, which are provided for the purpose of illustration only and are not intended to limit the scope of the present invention.
Examples
As shown in fig. 1, a non-contact type medicament sampling device comprises an inflatable balloon 1, an air inlet valve 3, a liquid storage tank 6, an air outlet valve 4 and a vacuum pump 5.
The air outlet of the inflatable saccule 1 is communicated with the air inlet of the air inlet valve 3.
A liquid outlet pipe 8 communicated outwards is arranged at the upper part of the liquid storage tank 6, and a liquid outlet valve 9 is arranged on the liquid outlet pipe 8; a piston 7 is in sliding fit in the liquid storage tank 6, and an air inlet hole and an air outlet hole are respectively formed in the end face of the lower end of the liquid storage tank 6.
The air outlet of the air inlet valve 3 is communicated to the air inlet hole, the air inlet of the air outlet valve 4 is communicated to the air outlet hole, and the air outlet of the air outlet valve 4 is communicated with the air inlet of the vacuum pump 5.
Before sampling, the liquid to be taken is stored above a piston 7 of a liquid storage tank 6; at the moment, the air inlet valve 3 and the air outlet valve 4 are both closed, and the vacuum pump 5 does not work; during sampling, the air inlet valve 3 and the liquid outlet valve 9 are opened, the inflatable balloon 1 is squeezed, the inflatable balloon 1 inflates the liquid storage tank 6 below the piston 7, the piston 7 pushes upwards after the liquid storage tank 6 below the piston 7 is inflated, and then liquid above the piston flows out of the liquid outlet pipe 8, and the inflation amount is constant after the inflatable balloon 1 is squeezed once, so that quantitative liquid can be extracted from the liquid storage tank 6 every time, the sampling amount is controllable, and the possibility that hands contact the liquid is avoided; after sampling, the air inlet valve 3 is closed, the air outlet valve 4 is opened at the same time, the vacuum pump 5 is started, the vacuum pump 5 pumps out air below the piston 7 of the liquid storage tank 6, the piston 7 falls back downwards again as the air below the piston 7 is pumped out, and the liquid outlet valve 9 is closed after the piston 7 finishes falling back.
The reagent does not directly contact with chemical and medical reagents, so that the possibility that workers are corroded and poisoned by acid, alkali, toxic, harmful and other reagents in the process of measuring the reagents is reduced to the maximum extent.
And the air storage cavity 2 is arranged between the inflatable balloon 1 and the air inlet valve 3. The air storage chamber 2 is used for buffering air, so that the phenomenon that liquid is sprayed out of the liquid storage tank 6 due to the fact that air pressure below the piston 7 is suddenly increased in the process of extruding the inflatable balloon 1 is avoided.
Referring to fig. 3, the intake valve 3 and the exhaust valve 4 are electromagnetic valves, each electromagnetic valve includes a valve cavity 19, a control cavity, a valve core 20, an electromagnet 22 and an iron core 23, an air inlet and an air outlet are respectively disposed at two ends of the valve cavity 19, a front end of the control cavity is communicated to one side of the valve cavity 19, the valve core 20 is in sliding fit with the control cavity, when the front end of the valve core 20 slides to the valve cavity 19, the air inlet and the air outlet of the valve cavity 19 are isolated, a first spring 21 is sleeved outside the valve core 20, the valve core 20 slides to the valve cavity 19 by the first spring 21, the electromagnet 22 is fixed at a rear end of the valve core 20, the iron core 23 is disposed at a rear end of the control cavity corresponding to the electromagnet 22, and the iron core 23 is clamped at the rear end of the control cavity by a limiting block.
Under normal conditions, under the action of the first spring 21, the valve core 20 will cut off the passage between the air inlet and the air outlet; when the electromagnet 22 is energized, a magnetic field is generated, the iron core 23 and the electromagnet 22 attract each other, the electromagnetic attraction overcomes the elastic force of the first spring 21, the electromagnet 22 drives the valve core 20 to open a channel between the air inlet and the air outlet, and the valve body can be closed and opened.
And the bottom of the liquid storage tank 6 is provided with a limit switch for controlling the vacuum pump 5. When the piston 7 slides downwards to be in contact with the limit switch, the limit switch closes the operation of the vacuum pump 5, and the vacuum pump 5 is prevented from continuously pumping air below the piston 7.
As shown in fig. 2, the limit switch includes a sliding cylinder 12, a sliding pin 11, a first elastic metal sheet 14 and a second elastic metal sheet 13, an upper end of the sliding cylinder 12 is abutted to a bottom of the liquid storage tank 6, the sliding pin 11 is slidably fitted in the sliding cylinder 12, an upper end of the sliding pin 11 extends into the liquid storage tank 6, the first elastic metal sheet 14 and the second elastic metal sheet 13 extend from two sides of the sliding cylinder 12 to the inside, inner ends of the first elastic metal sheet 14 and the second elastic metal sheet 13 are vertically overlapped and connected in a normal state, an inner end of the second elastic metal sheet 13 is located at a lower side of an inner end of the first elastic metal sheet 14, and a lower end of the sliding pin 11 is disposed corresponding to an inner end of the second elastic metal sheet 13.
Under a normal state, the first elastic metal sheet 14 and the second elastic metal sheet 13 are overlapped and touched to be connected, the circuit of the vacuum pump 5 is kept to be communicated, the vacuum pump 5 can normally work, the piston 7 slides downwards to a certain position to touch the sliding pin 11, the piston 7 pushes the sliding pin 11 downwards, the sliding pin 11 pushes the second elastic metal sheet 13, the second elastic metal sheet 13 is separated from the first elastic metal sheet 14, the circuit of the vacuum pump 5 is disconnected, and the vacuum pump 5 stops working.
The side wall of the sliding pin 11 is axially provided with a limiting groove 17 and a small-diameter section 15, and the inner wall of the sliding cylinder 12 is respectively provided with a limiting bulge 18 and a spring seat 16; the limiting protrusion 18 extends into the limiting groove 17; the spring seat 16 of the spool 12 extends to the bottom of the small-diameter section 15, the small-diameter section 15 is sleeved with a second spring 10, and two ends of the second spring 10 respectively abut against the top of the small-diameter section 15 and an upper table surface of the spring seat 16. The small-diameter section 15 is convenient for arranging the second spring 10, and the limit groove 17 is used for limiting the stroke of the sliding pin 11 in up-and-down sliding.
The invention realizes the non-contact sampling of liquid by utilizing the inflatable balloon 1, the liquid storage tank 6, the air inlet valve 3, the liquid outlet valve 9 and the air outlet valve 4, is particularly suitable for the sampling of chemical and medical reagents, and has high sampling dose precision and safe and reliable sampling process.
This scheme adopts the operation that the many grades of switches of knob are used for controlling admission valve 3, air outlet valve 4 and vacuum pump 5.
The above embodiments should not limit the present invention in any way, and all technical solutions obtained by using equivalent alternatives or equivalent transformations fall within the protection scope of the present invention.
Claims (6)
1. A non-contact medicament sampling device is characterized by comprising an inflatable balloon (1), an air inlet valve (3), a liquid storage tank (6), an air outlet valve (4) and a vacuum pump (5);
the air outlet of the inflatable balloon (1) is communicated with the air inlet of the air inlet valve (3);
a liquid outlet pipe (8) communicated outwards is arranged at the upper part of the liquid storage tank (6), and a liquid outlet valve (9) is arranged on the liquid outlet pipe (8); a piston (7) is in sliding fit in the liquid storage tank (6), and the end face of the lower end of the liquid storage tank (6) is provided with an air inlet hole and an air outlet hole respectively;
the air outlet of the air inlet valve (3) is communicated to the air inlet hole, the air inlet of the air outlet valve (4) is communicated to the air outlet hole, and the air outlet of the air outlet valve (4) is communicated with the air inlet of the vacuum pump (5).
2. A non-contact medication sampling device according to claim 1, wherein: the air storage cavity (2) is arranged between the inflatable balloon (1) and the air inlet valve (3).
3. A non-contact medication sampling device according to claim 2, wherein: the air inlet valve (3) and the air outlet valve (4) are electromagnetic valves, each electromagnetic valve comprises a valve cavity (19), a control cavity, a valve core (20), an electromagnet (22) and an iron core (23), air inlets and air outlets are respectively formed in two ends of the valve cavity (19), the front end of the control cavity is communicated to one side of the valve cavity (19), the valve core (20) is in sliding fit with the control cavity, when the front end of the valve core (20) slides to the valve cavity (19), the air inlets and the air outlets of the valve cavity (19) are separated, a first spring (21) is sleeved outside the valve core (20), the valve core (20) slides towards the valve cavity (19) by the first spring (21), the electromagnet (22) is fixed to the rear end of the valve core (20), and the iron core (23) is arranged at the rear end of the control cavity corresponding to the electromagnet (22).
4. A non-contact medication sampling device according to claim 1, wherein: and a limit switch for controlling the vacuum pump (5) is arranged at the bottom of the liquid storage tank (6).
5. A non-contact medication sampling device according to claim 4, wherein: the limit switch comprises a sliding cylinder (12), a sliding pin (11), a first elastic metal sheet (14) and a second elastic metal sheet (13), the upper end of the sliding cylinder (12) is in butt joint with the bottom of the liquid storage tank (6), the sliding pin (11) is in sliding fit with the inside of the sliding cylinder (12), the upper end of the sliding pin (11) extends into the liquid storage tank (6), the first elastic metal sheet (14) and the second elastic metal sheet (13) extend to the inside from two sides of the sliding cylinder (12), the inner ends of the first elastic metal sheet (14) and the second elastic metal sheet (13) are in up-and-down overlapped connection in a normal state, the inner end of the second elastic metal sheet (13) is located on the lower side of the inner end of the first elastic metal sheet (14), and the lower end of the sliding pin (11) corresponds to the inner end of the second elastic metal sheet (13).
6. A non-contact medication sampling device according to claim 5, wherein: the side wall of the sliding pin (11) is axially provided with a limiting groove (17) and a small-diameter section (15), and the inner wall of the sliding cylinder (12) is respectively provided with a limiting bulge (18) and a spring seat (16); the limiting protrusion (18) extends into the limiting groove (17); the spring seat (16) of the sliding barrel (12) extends to the bottom of the small-diameter section (15), a second spring (10) is sleeved outside the small-diameter section (15), and two ends of the second spring (10) are respectively abutted to the top of the small-diameter section (15) and the upper table surface of the spring seat (16).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110811359.7A CN113588339A (en) | 2021-07-19 | 2021-07-19 | Non-contact medicament sampling device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110811359.7A CN113588339A (en) | 2021-07-19 | 2021-07-19 | Non-contact medicament sampling device |
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| Publication Number | Publication Date |
|---|---|
| CN113588339A true CN113588339A (en) | 2021-11-02 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202110811359.7A Pending CN113588339A (en) | 2021-07-19 | 2021-07-19 | Non-contact medicament sampling device |
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Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2312205Y (en) * | 1997-07-23 | 1999-03-31 | 宗小林 | toothpaste device |
| CN2880245Y (en) * | 2006-01-07 | 2007-03-21 | 毕秀英 | Convenient dropping bottle |
| CN204573560U (en) * | 2015-04-23 | 2015-08-19 | 宁波浩盛气动机械有限公司 | A kind of micro-air pump gas holder |
| CN105996861A (en) * | 2016-07-19 | 2016-10-12 | 戴庆甸 | Push type toothpaste squeezer |
| CN205626260U (en) * | 2016-03-21 | 2016-10-12 | 南阳医学高等专科学校 | Ophthalmic eye drops device |
| CN208476604U (en) * | 2018-06-29 | 2019-02-05 | 中国石油天然气股份有限公司 | Sampling device |
| CN110170347A (en) * | 2019-05-11 | 2019-08-27 | 中山市华宝勒生活用品实业有限公司 | A kind of quantitative object absorber |
| CN209828531U (en) * | 2019-04-23 | 2019-12-24 | 溧阳市人民医院 | Quantitative flusher for emergency ICU ward |
| CN211877498U (en) * | 2020-04-16 | 2020-11-06 | 鄂尔多斯应用技术学院 | Chemical liquid sampling device |
-
2021
- 2021-07-19 CN CN202110811359.7A patent/CN113588339A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2312205Y (en) * | 1997-07-23 | 1999-03-31 | 宗小林 | toothpaste device |
| CN2880245Y (en) * | 2006-01-07 | 2007-03-21 | 毕秀英 | Convenient dropping bottle |
| CN204573560U (en) * | 2015-04-23 | 2015-08-19 | 宁波浩盛气动机械有限公司 | A kind of micro-air pump gas holder |
| CN205626260U (en) * | 2016-03-21 | 2016-10-12 | 南阳医学高等专科学校 | Ophthalmic eye drops device |
| CN105996861A (en) * | 2016-07-19 | 2016-10-12 | 戴庆甸 | Push type toothpaste squeezer |
| CN208476604U (en) * | 2018-06-29 | 2019-02-05 | 中国石油天然气股份有限公司 | Sampling device |
| CN209828531U (en) * | 2019-04-23 | 2019-12-24 | 溧阳市人民医院 | Quantitative flusher for emergency ICU ward |
| CN110170347A (en) * | 2019-05-11 | 2019-08-27 | 中山市华宝勒生活用品实业有限公司 | A kind of quantitative object absorber |
| CN211877498U (en) * | 2020-04-16 | 2020-11-06 | 鄂尔多斯应用技术学院 | Chemical liquid sampling device |
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