CN211636571U - Pipette capable of accurately and quantitatively transferring liquid - Google Patents
Pipette capable of accurately and quantitatively transferring liquid Download PDFInfo
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- CN211636571U CN211636571U CN201922442829.8U CN201922442829U CN211636571U CN 211636571 U CN211636571 U CN 211636571U CN 201922442829 U CN201922442829 U CN 201922442829U CN 211636571 U CN211636571 U CN 211636571U
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Abstract
The utility model discloses a pipette capable of accurately and quantitatively transferring liquid, which relates to the pipette technology and comprises a lower pipette and an upper pipette; the upper part of the lower pipette is of an open straight pipe structure, and the lower part of the lower pipette is a liquid suction nozzle; the bottom of the upper liquid suction pipe is of a closed structure, and the upper part of the upper liquid suction pipe is provided with an aurilave interface; the closed end of the upper pipette is inserted into the lower pipette, the inner side of the bottom of the upper pipette is provided with an overflow pipe, and the overflow pipe is communicated with the inner part of the lower pipette. The utility model discloses a two segmentation structures, upper portion pipette are pegged graft in the pipette of lower part with the form of piston, can adjust the volume of lower part pipette according to the experiment needs, and then realize accurate ration and get liquid and move the liquid. The pipette has the advantages that the pipette volume in the lower pipette can be ensured to be unchanged in the pipetting process, the pipetting accuracy is improved, the pipetting difficulty is reduced, and the pipetting efficiency is improved.
Description
Technical Field
The utility model belongs to the pipette technique, concretely relates to can accurate ration move liquid pipette.
Background
Pipettes are common glass instruments for quantitatively transferring liquid samples. Is widely applied to laboratories, scientific research units or related enterprises and public institutions such as chemical industry, food and the like for experimental sampling. The existing pipette usually adopts an integral straight tube structure, when quantitatively pipetting, the pipette of fixed specification is often adopted for quantitatively pipetting, for example, the liquid displacement is 5, 10, 25, the liquid displacement can not be adjusted as required, the use is inconvenient, in addition, in order to move out the specially set amount, the titration mode is often adopted for pipetting, the scale of titration of the solution in the pipette needs to be observed in a reciprocating manner, the pipetting difficulty is large, time and labor are wasted, the pipetting error is easily caused in the pipetting process, and the authenticity and the accuracy of an experimental result are further influenced.
SUMMERY OF THE UTILITY MODEL
The utility model aims at solving the problem that the prior art cannot accurately and quantitatively transfer liquid, and providing a transfer pipette capable of accurately and quantitatively transferring liquid.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
a pipette capable of accurately and quantitatively pipetting is designed, and comprises a lower pipette and an upper pipette;
the upper part of the lower pipette is of an open straight pipe structure, and the lower part of the lower pipette is a liquid suction nozzle;
the bottom of the upper liquid suction pipe is of a closed structure, and the upper part of the upper liquid suction pipe is provided with an aurilave interface;
the closed end of the upper pipette is inserted into the lower pipette, an overflow pipe is arranged on the inner side of the bottom of the upper pipette, and the overflow pipe is communicated with the inside of the lower pipette.
Further, the inner diameter of the upper pipe section of the lower pipette is the same as the outer diameter of the lower pipe section of the upper pipette, and the upper pipette can move in a sealing manner in the lower pipette.
Further, the volume inside the overflow tube is counted in the total pipetting volume of the lower pipette.
Further, the side of the lower pipette is provided with pipetting scales along the length direction.
The utility model provides a can accurate ration move liquid pipette, beneficial effect lies in:
(1) the utility model discloses a two segmentation structures, upper portion pipette are pegged graft in the pipette of lower part with the form of piston, can adjust the volume of lower part pipette according to the experiment needs, and then realize accurate ration and get liquid and move the liquid.
(2) The utility model discloses a be equipped with the overflow pipe in the lower part pipette, after the lower part pipette is inhaled quantitative liquid, unnecessary liquid just can follow in the overflow pipe enter into the upper portion imbibition pipe, ensures all the time that the liquid-transfering volume in the lower part pipette is unchangeable, improves the accuracy that moves the liquid, has also reduced the degree of difficulty that moves the liquid simultaneously, has improved and has moved liquid efficiency.
Drawings
The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention. In the drawings:
fig. 1 is a schematic structural diagram of the present invention;
fig. 2 is a schematic diagram of the internal structure of the present invention.
Labeled as: lower pipette 1, upper pipette 2, overflow pipe 3, aurilave interface 4, move liquid scale 5, imbibition mouth 6.
Detailed Description
The present invention will be further described with reference to the following specific examples. These examples are provided only for illustrating the present invention and are not intended to limit the scope of the present invention. In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted", "provided" and "connected" are to be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
The structural features of the present invention will now be described in detail with reference to the accompanying drawings.
Referring to fig. 1-2, a pipette capable of accurately and quantitatively pipetting comprises a lower pipette 1 and an upper pipette 2, wherein the upper part of the lower pipette 1 is an open straight tube structure, the lower part is a liquid suction nozzle 6, and the liquid suction nozzle 6 is used for sucking liquid by the lower pipette 1.
The bottom of the upper pipette 2 is of a closed structure, the upper part is an aurilave interface 4, and the aurilave interface 4 is used for installing aurilaves made of rubber.
The closed end of the upper pipette 2 is inserted into the lower pipette 1, the inner side of the bottom of the upper pipette 2 is provided with an overflow pipe 3, the overflow pipe 3 is communicated with the inside of the lower pipette 1, and the volume inside the overflow pipe 3 is counted in the total pipetting volume of the lower pipette 1.
The upper portion pipeline section internal diameter of lower part pipette 1 is the same with the lower part pipeline section external diameter of upper portion pipette 2, and upper portion pipette 2 can be at the sealed removal of lower part pipette 1 inside, and upper portion pipette 2 is pegged graft in lower part pipette 1 with the form of piston, can adjust the volume of lower part pipette 1 according to the experiment needs, and then realizes accurate ration and gets liquid and move the liquid.
The side of the lower pipette 1 is provided with pipetting marks 5 in the longitudinal direction.
The utility model discloses a can accurate ration move pipette, simple structure, easily operation is equipped with the overflow pipe in the lower part pipette, after the lower part pipette is inhaled quantitative liquid, in unnecessary liquid just can enter into the upper portion imbibition pipe from the overflow pipe, ensures all the time that the liquid volume that moves in the lower part pipette is unchangeable, improves the accuracy that moves the liquid, has also reduced the degree of difficulty that moves the liquid simultaneously, has improved and has moved liquid efficiency.
Specifically, when in use, the upper pipette 2 is inserted into the lower pipette 1, the liquid suction amount of the lower pipette 1 is accurately adjusted according to the liquid suction scale 5, the ear washing ball is installed on the ear washing ball interface 4, the ear washing ball is squeezed according to the approximate liquid suction amount, after hands are loosened, the liquid enters the lower pipette 1 from the liquid suction nozzle 6 until the ear washing ball completely recovers, at the moment, the lower pipette 1 sucks redundant liquid and easily enters the upper pipette 2 from the overflow pipe 3, at the moment, the redundant liquid cannot overflow the overflow pipe 3, the force for squeezing the ear washing ball is well controlled during liquid suction, after the ear washing ball completely recovers, the liquid in the lower pipette 1 cannot spill because the inner cavity of the upper pipette 2 is in a sealed state, after liquid suction is completed, liquid transfer is carried out, the pipette capable of accurately transferring liquid and quantifying is transferred to the upper portion of the formulated container, the ear washing ball is pulled out, the solution in the lower pipette 1 can be poured out, and finally, the redundant solution in the upper pipette 2 is guided into the waste liquid tank, so that accurate quantitative pipetting is completed.
Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (4)
1. A pipette capable of accurately and quantitatively pipetting is characterized by comprising a lower pipette (1) and an upper pipette (2);
the upper part of the lower pipette (1) is of an open straight pipe structure, and the lower part of the lower pipette is provided with a liquid suction nozzle (6);
the bottom of the upper pipette (2) is of a closed structure, and the upper part of the upper pipette is provided with an aurilave interface (4);
the closed end of the upper pipette (2) is inserted into the lower pipette (1), an overflow pipe (3) is arranged on the inner side of the bottom of the upper pipette (2), and the overflow pipe (3) is communicated with the inside of the lower pipette (1).
2. A pipette capable of accurately performing quantitative pipetting according to claim 1, characterized in that the lower pipette (1) has an inner diameter of the upper tube section which is the same as the outer diameter of the lower tube section of the upper pipette (2), and the upper pipette (2) is sealingly movable inside the lower pipette (1).
3. A pipette with an accurate quantitative pipetting according to claim 1 characterised in that the volume inside the overflow tube (3) is counted in the total pipetting volume of the lower pipette (1).
4. A pipette capable of accurately and quantitatively pipetting according to claim 1, wherein the side of the lower pipette (1) is provided with pipetting marks (5) along the length direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922442829.8U CN211636571U (en) | 2019-12-30 | 2019-12-30 | Pipette capable of accurately and quantitatively transferring liquid |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922442829.8U CN211636571U (en) | 2019-12-30 | 2019-12-30 | Pipette capable of accurately and quantitatively transferring liquid |
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| Publication Number | Publication Date |
|---|---|
| CN211636571U true CN211636571U (en) | 2020-10-09 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201922442829.8U Active CN211636571U (en) | 2019-12-30 | 2019-12-30 | Pipette capable of accurately and quantitatively transferring liquid |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112842336A (en) * | 2021-01-12 | 2021-05-28 | 王盛 | Blood collection bottle for blood collection in immune cell therapy |
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2019
- 2019-12-30 CN CN201922442829.8U patent/CN211636571U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112842336A (en) * | 2021-01-12 | 2021-05-28 | 王盛 | Blood collection bottle for blood collection in immune cell therapy |
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| TR01 | Transfer of patent right |
Effective date of registration: 20210126 Address after: Room 805, building 1, chuangxinhui, No.61, Wenjing Road, Jiangbei new district, Nanjing City, Jiangsu Province, 210000 Patentee after: JIANGSU SITUOLI INSTRUMENT Co.,Ltd. Address before: No. 306, Xinhua community, Yanjiang street, Pukou District, Nanjing City, Jiangsu Province, 210044 Patentee before: Nanjing Hongkou Scientific Instrument Co.,Ltd. |