CN110975955A - Quantitative sampling dropper - Google Patents
Quantitative sampling dropper Download PDFInfo
- Publication number
- CN110975955A CN110975955A CN201911316820.0A CN201911316820A CN110975955A CN 110975955 A CN110975955 A CN 110975955A CN 201911316820 A CN201911316820 A CN 201911316820A CN 110975955 A CN110975955 A CN 110975955A
- Authority
- CN
- China
- Prior art keywords
- liquid
- air bag
- straw
- suction pipe
- storage tank
- 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.)
- Withdrawn
Links
- 238000005070 sampling Methods 0.000 title claims abstract description 7
- 239000007788 liquid Substances 0.000 claims abstract description 52
- 239000010902 straw Substances 0.000 claims abstract description 15
- 239000003153 chemical reaction reagent Substances 0.000 description 2
- 238000001514 detection method Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000006228 supernatant Substances 0.000 description 1
Images
Classifications
-
- 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
Landscapes
- Health & Medical Sciences (AREA)
- Clinical Laboratory Science (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Sampling And Sample Adjustment (AREA)
Abstract
The invention relates to a quantitative sampling dropper, which comprises a straw and an air bag arranged at the top of the straw, wherein the upper end of the straw extends into the air bag, and a liquid storage tank is formed in a space below the top of the straw by the air bag; the suction pipe extends into the air bag, so that a liquid storage tank is formed by positioning part of the space of the air bag below the top of the suction pipe, liquid can be filled in the suction pipe firstly when liquid is taken, then the liquid enters the liquid storage tank, the liquid level in the air bag is lower than the top end of the suction pipe when the liquid is taken, and therefore when the liquid in the drip pipe is discharged, the liquid in the suction pipe is discharged under the command, the liquid in the liquid storage tank cannot flow out, and quantitative liquid adding is realized.
Description
Technical Field
The invention relates to a quantitative sampling dropper.
Background
The dropper is a device which is very commonly used in the detection test and is used for sucking or adding a small amount of reagent, sucking the supernatant and separating the precipitate. The prior dropper is simply composed of a sucker and an air bag, and cannot realize the function of quantitative liquid adding.
Disclosure of Invention
The invention aims to solve the technical problem of providing a quantitative sampling dropper capable of realizing quantitative liquid adding.
The technical scheme adopted by the invention is as follows: a quantitative sampling dropper comprises a pipette and an air bag arranged at the top of the pipette, wherein the upper end of the pipette extends into the air bag, and a liquid storage tank is formed in the space, below the top of the pipette, of the air bag.
Further, the volume of the air bag is larger than that of the suction pipe and smaller than the sum of the volumes of the suction pipe and the liquid storage tank.
Further, the reservoir is disposed around the straw.
The invention has the positive effects that: the suction pipe extends into the air bag, so that a liquid storage tank is formed by positioning part of the space of the air bag below the top of the suction pipe, liquid can be filled in the suction pipe firstly when liquid is taken, then the liquid enters the liquid storage tank, the liquid level in the air bag is lower than the top end of the suction pipe when the liquid is taken, and therefore when the liquid in the drip pipe is discharged, the liquid in the suction pipe is discharged under the command, the liquid in the liquid storage tank cannot flow out, and quantitative liquid adding is realized.
Drawings
FIG. 1 is a schematic view of the structure of the present invention.
In the attached figure, 1-suction tube, 2-air bag and 3-liquid storage tank.
Detailed Description
As shown in the attached figure 1, the invention comprises a straw 1 and an air bag 2 arranged above the straw 1, wherein the straw 1 adopts the existing structure, such as a sharp-mouth glass tube. The upper end of the suction pipe 1 extends into the air bag 2 for a certain distance, so that a liquid storage tank 3 is formed below the suction pipe 1 in the air bag 2, and the sucked liquid firstly fills the suction pipe 1 and then enters the liquid storage tank 3.
When the liquid filling device is used, in order to realize quantitative liquid filling, the liquid level in the air bag 2 is required to be ensured not to be higher than the top end of the suction pipe 1, and in order to be more convenient to use, the volume of the air bag 2 is required to be larger than that of the suction pipe 1 and smaller than the sum of the volumes of the suction pipe 1 and the liquid storage tank 3.
When the liquid taking device is used, firstly the air bag 2 is pinched to drive out the air in the air bag 2, then the suction tube 1 is inserted into a liquid taking reagent bottle, and then the fingers are released, so that the liquid can enter the suction tube 1 and the air bag 2. When liquid needs to be added, the air bag 2 is pinched again, and then the liquid can be extruded out.
Because the volume of the air bag 2 is larger than that of the suction tube 1 and is smaller than the sum of the volume of the suction tube 1 and the volume of the liquid storage tank 3, when liquid is taken, the liquid level in the air bag 2 can be always ensured to be lower than the top end of the suction tube 1. When adding liquid like this, the extrusion gasbag 2 is located the part of straw 1 top, alright discharge the liquid in the straw 1, and the liquid that is located the reservoir 3 just can remain in the reservoir 3, can not discharged, guarantees that the volume of discharge liquid is the volume of straw 1.
In order to meet more quantitative requirements, the suction tube 1 and the air bag 2 with different sizes and specifications can be equipped to realize quantitative liquid adding work of liquid with different amounts.
The above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (3)
1. The quantitative sampling dropper is characterized by comprising a straw (1) and an air bag (2) arranged at the top of the straw (1), wherein the upper end of the straw (1) extends into the air bag (2), and the air bag (2) is positioned in a space below the top of the straw (1) to form a liquid storage tank (3).
2. A dosing dropper according to claim 1, wherein the volume of the bladder (2) is greater than the volume of the pipette (1) and less than the sum of the volumes of the pipette (1) and reservoir (3).
3. A dosing dropper according to claim 1, wherein the reservoir (3) is arranged around the pipette (1).
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911316820.0A CN110975955A (en) | 2019-12-19 | 2019-12-19 | Quantitative sampling dropper |
| PCT/CN2020/135693 WO2021121147A1 (en) | 2019-12-19 | 2020-12-11 | Quantitative sampling dropper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911316820.0A CN110975955A (en) | 2019-12-19 | 2019-12-19 | Quantitative sampling dropper |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110975955A true CN110975955A (en) | 2020-04-10 |
Family
ID=70063140
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911316820.0A Withdrawn CN110975955A (en) | 2019-12-19 | 2019-12-19 | Quantitative sampling dropper |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN110975955A (en) |
| WO (1) | WO2021121147A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021121147A1 (en) * | 2019-12-19 | 2021-06-24 | 石家庄禾柏生物技术股份有限公司 | Quantitative sampling dropper |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114146799A (en) * | 2021-12-01 | 2022-03-08 | 葛贤杰 | Medical treatment is cosmetic with plant liquid grinding extraction equipment |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008020255A (en) * | 2006-07-11 | 2008-01-31 | Ai Bio Chips:Kk | Dropping pipet and liquid sampling method using it |
| CN203790959U (en) * | 2014-04-03 | 2014-08-27 | 南京交通职业技术学院 | Quantitative liquid suction device |
| CN204638220U (en) * | 2015-05-12 | 2015-09-16 | 辽宁石化职业技术学院 | quantitative dropper |
| CN204768780U (en) * | 2015-06-04 | 2015-11-18 | 杭州安旭科技有限公司 | Ration straw |
| CN205886919U (en) * | 2016-08-12 | 2017-01-18 | 贵州博凯隆生物科技有限公司 | Accurate liquid taking device once |
| CN208449346U (en) * | 2018-05-24 | 2019-02-01 | 杭州中一检测研究院有限公司 | A kind of convenient pipette |
| CN110975955A (en) * | 2019-12-19 | 2020-04-10 | 石家庄禾柏生物技术股份有限公司 | Quantitative sampling dropper |
| CN111992262A (en) * | 2020-08-26 | 2020-11-27 | 上海菁一科技有限公司 | Disposable quantitative pipette |
-
2019
- 2019-12-19 CN CN201911316820.0A patent/CN110975955A/en not_active Withdrawn
-
2020
- 2020-12-11 WO PCT/CN2020/135693 patent/WO2021121147A1/en active Application Filing
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021121147A1 (en) * | 2019-12-19 | 2021-06-24 | 石家庄禾柏生物技术股份有限公司 | Quantitative sampling dropper |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2021121147A1 (en) | 2021-06-24 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110975955A (en) | Quantitative sampling dropper | |
| CN209752922U (en) | Three-bag micro-suction tube | |
| CN106475164B (en) | A kind of combined centrifugal device | |
| CN212309622U (en) | Quantitative sampling dropper | |
| CN112986603A (en) | Anti-leakage reagent dropper for antigen detection and biological sampling method | |
| CN202226186U (en) | Water sucking bottle | |
| CN205126867U (en) | Dispense with priming device of bleeding | |
| JP6765592B1 (en) | Auxiliary tool for subdivided bottles | |
| CN207157805U (en) | A kind of alcohol cotton stick Storage Box | |
| KR102576561B1 (en) | Cosmetic container | |
| CN103523729A (en) | Manual material pumping device | |
| CN107174679A (en) | A kind of gas-liquid separation drainage system | |
| CN204197579U (en) | Liquid medicine quantitative drug taking device | |
| CN203620653U (en) | Automatic quantifying-type liquid adding device | |
| CN203170352U (en) | Novel transfer pipette | |
| CN214456746U (en) | Liquid split charging device | |
| CN208625728U (en) | A kind of CT bulb is changed oil exhaust system | |
| CN220027067U (en) | Pipette for laboratory | |
| EP4241885A1 (en) | Fixed volume pipette | |
| CN210135452U (en) | Automatic continuous high-precision liquid filler | |
| CN216294815U (en) | Suction perfusion device | |
| CN101138641B (en) | Plasma body sterilizer quantitative priming device | |
| CN213157799U (en) | Liquid medicine transferring device and liquid taking assembly | |
| CN201036745Y (en) | Side hole liquid-absorbing device | |
| CN215439656U (en) | Automatic liquid collecting and conveying device without bucket groove |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20200410 |
|
| WW01 | Invention patent application withdrawn after publication |