CN109289956A - A kind of novel wide range pipette - Google Patents
A kind of novel wide range pipette Download PDFInfo
- Publication number
- CN109289956A CN109289956A CN201811156345.0A CN201811156345A CN109289956A CN 109289956 A CN109289956 A CN 109289956A CN 201811156345 A CN201811156345 A CN 201811156345A CN 109289956 A CN109289956 A CN 109289956A
- Authority
- CN
- China
- Prior art keywords
- pipette
- tube body
- piston
- liquid containing
- liquid
- 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.)
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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
-
- 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
- B01L3/0217—Pipettes, i.e. with only one conduit for withdrawing and redistributing liquids of the plunger pump type
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- Health & Medical Sciences (AREA)
- Clinical Laboratory Science (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Devices For Use In Laboratory Experiments (AREA)
- Apparatus Associated With Microorganisms And Enzymes (AREA)
- Sampling And Sample Adjustment (AREA)
Abstract
The present invention provides a kind of novel multrirange pipettes, it include: pipette include tube body and two from tube body to liquid containing chamber made of radial direction expansion, the diameter of liquid containing chamber is greater than the diameter of tube body, piston includes the piston body with cavity and the piston rod being actively located in cavity, the volume of the cavity of piston body is greater than total range of pipette, the opening airtight connection of piston rod and piston body, the opening airtight connection of piston rod and tube body, air nut is set on the side wall of one end that tube body is connected with piston.The present invention can accurate pipette liquid, avoid the problem that pipette cannot control liquid level of solution to graduation mark into standard, the cleaning for ensuring ear washing bulb avoids ear washing bulb is contaminated from influencing experimental result, and multiple range pipette also achieves a pipette while pipetting the liquid of different volumes.
Description
Technical field
The invention belongs to pipettes, are more particularly to a kind of novel wide range pipette.
Background technique
Pipette pipettes liquid and is usually used cooperatively with ear washing bulb at present, and solution is sucked liquid relief by squeezing ear washing bulb
Pipe.Since the extruding degree of ear washing bulb is difficult to hold, when extruding force spends big, the solution of sucking can overflow pipette entrance and wash ear
In ball, causes solution to pollute while can also damage ear washing bulb.When extruding dynamics is inadequate, the solution page cannot reach graduation mark, need
It re-operates.Ear washing bulb is usually to separate storage with pipette, and ear washing bulb opening, which is exposed in air, is easily infected with dust, is made again
Used time will affect experimental result.Most of pipettes are all to block the suitable for reading of pipette with finger after washing lotion, are rotated using finger
Liquid levels in pipette are adjusted, liquid level is caused to be easy decline, it is difficult to precisely at graduation mark.Common pipette only has single
Range, when pipetting the same solution of different volumes, it is often necessary to which several pipettes repeatedly pipette, and increase experimentation
Many and diverse degree.
Summary of the invention
The object of the present invention is to provide the novel multrirange pipettes that one kind can pipette different volumes liquid simultaneously.
According to an aspect of the invention, there is provided a kind of novel multrirange pipette, comprising:
Pipette, including tube body and two are from the tube body to liquid containing chamber made of radial direction expansion, it is described
The diameter of liquid containing chamber is greater than the diameter of the tube body, and the volume of the volume of the tube body and two liquid containing chambers is total
With total range for the pipette,
Piston, including with cavity piston body and the piston rod that is actively located in the cavity, the piston body
The volume of cavity is greater than total range of the pipette, and the opening airtight connection of the piston rod and the piston body is described
The both ends of piston rod protrude from the piston body, and one end of the piston rod is located in the tube body of the pipette, the work
The handle that the other end of stopper rod is equipped with convenient for holding, the opening airtight connection of the piston rod and the tube body,
Air nut is set on the side wall of one end that the tube body is connected with the piston, unscrews the air spiral shell
Mother, air can then be entered in pipette by the air nut, tighten the air nut, and air can not then pass through the sky
Gas nut enters in the pipette.
In some embodiments, two liquid containing chambers are respectively that the first liquid containing chamber and second liquid accommodate
Chamber, the first liquid containing chamber are located at the lower part of the second liquid accommodating chamber, the tube body be equipped with the first graduation mark and
Second graduation mark, tube body of first graduation mark between the first liquid containing chamber and the second liquid accommodating chamber
On, second graduation mark is located on the tube body above the second liquid accommodating chamber.
In some embodiments, the one end part imbibition end that institute's pipette is not connect with the piston, the imbibition end
To be round table-like, the internal diameter at the imbibition end is gradually increased from the opening at the imbibition end to the direction of the tube body.
In some embodiments, the junction of the liquid containing chamber and the tube body is round table-like, the junction
Diameter be gradually reduced from the liquid containing chamber to the direction of the tube body.
In some embodiments, the tube body is structure as a whole with the liquid containing chamber.
It has the advantage that: the present invention can accurate pipette liquid, avoid pipette cannot be into quasi- control liquid level of solution to carving
The problem of spending line, it is ensured that the cleaning of ear washing bulb avoids ear washing bulb is contaminated from influencing experimental result, and multiple range pipette is also realized
One pipette pipettes the liquid of different volumes simultaneously.
Detailed description of the invention
Fig. 1 is a kind of structural schematic diagram of novel multrirange pipette of an embodiment of the present invention.
Specific embodiment
Fig. 1 schematically shows the novel multrirange pipette 1 of one embodiment of the present invention.As shown in Figure 1, should
Novel multrirange pipette 1 includes pipette 1, piston 2 and air nut 3.
Pipette 1 includes that tube body 11 and two are held from tube body 11 to liquid containing chamber liquid made of radial direction expansion
Receive chamber 12.The diameter of liquid containing chamber is greater than the diameter of tube body 11.A certain distance is equipped between two liquid containing chambers.Two
Liquid containing chamber is respectively the first liquid containing chamber 121 and second liquid accommodating chamber 122.First liquid containing chamber 121 is located at the
The lower part of two liquid containing chambers 122.Tube body 11 is equipped with the first graduation mark 111 and the second graduation mark 112.First graduation mark 111
On tube body 11 between the first liquid containing chamber 121 and second liquid accommodating chamber 122.Second graduation mark 112 is located at second
On the tube body 11 of 122 top of liquid containing chamber.Thus it can realize a pipette 1 while pipette the liquid of different volumes.Pipe
The volume of body 11 and the volume summation of two liquid containing chambers are total range of pipette 1.What pipette 1 was not connect with piston 2
One end part imbibition end.Imbibition end be it is round table-like, the internal diameter at imbibition end is gradually increased from the opening at imbibition end to the direction of tube body 11
Greatly.Convenient for drawing liquid into pipette 1.The junction of liquid containing chamber and tube body 11 be it is round table-like, the diameter of junction by
Liquid containing chamber is gradually reduced to the direction of tube body 11.Tube body 11 is structure as a whole with liquid containing chamber.Piston 2 includes having chamber
The piston body 21 of body and the piston body 22 being actively located in cavity.The volume of the cavity of piston body 21 is greater than the total of pipette 1
Range can will be made by piston 2 hydraulically full in pipette 1 as a result,.The closed company of opening of piston body 22 and piston body 21
It connects.The both ends of piston body 22 protrude from piston body 21, and one end of piston body 22 is located in the tube body 11 of pipette 1, piston body
The handle that 22 other end is equipped with convenient for holding, convenient for holding pull piston body 22.Piston body 22 and the opening of tube body 11 are close
Close connection.By piston 2 can accurate pipette liquid, avoid the problem that pipette 1 cannot into quasi- control liquid level of solution to graduation mark,
The cleaning for ensuring ear washing bulb avoids ear washing bulb is contaminated from influencing experimental result.Air nut 3 is set to tube body 11 and 2 phase of piston
On the side wall of one end of connection, unscrew air nut 3, air can then be entered in pipette 1 by air nut 3, tighten air
Nut 3, air can not then be entered in pipette 1 by air nut 3.It can be realized by air nut 3 to the liquid in pipette 1
The fine adjusting of body, it is ensured that the accuracy of the amount of liquid in pipette 1.
Above-described is only some embodiments of the present invention.For those of ordinary skill in the art, it is not taking off
Under the premise of from the invention design, various modifications and improvements can be made, and these are all within the scope of protection of the present invention.
Claims (5)
1. a kind of novel multrirange pipette characterized by comprising
Pipette, including tube body and two are from the tube body to liquid containing chamber made of radial direction expansion, the liquid
The diameter of accommodating chamber is greater than the diameter of the tube body, and the volume summation of the volume of the tube body and two liquid containing chambers is
Total range of the pipette,
Piston, including the piston body with cavity and the piston rod being actively located in the cavity, the cavity of the piston body
Volume be greater than the pipette total range, the opening airtight connection of the piston rod and the piston body, the piston
The both ends of bar protrude from the piston body, and one end of the piston rod is located in the tube body of the pipette, the piston rod
The other end be equipped with convenient for hold handle, the opening airtight connection of the piston rod and the tube body,
Air nut is set on the side wall of one end that the tube body is connected with the piston, unscrews the air nut, empty
Gas can then be entered in pipette by the air nut, tighten the air nut, and air can not then pass through the air spiral shell
Mother enters in the pipette.
2. novel multrirange pipette according to claim 1, which is characterized in that two liquid containing chambers are respectively
First liquid containing chamber and second liquid accommodating chamber, the first liquid containing chamber are located under the second liquid accommodating chamber
Portion, the tube body are equipped with the first graduation mark and the second graduation mark, and first graduation mark is located at the first liquid containing chamber
On tube body between the second liquid accommodating chamber, second graduation mark is located at the pipe above the second liquid accommodating chamber
On body.
3. novel multrirange pipette according to claim 1, which is characterized in that institute's pipette is not connect with the piston
One end part imbibition end, the imbibition end be it is round table-like, the internal diameter at the imbibition end is from the opening at the imbibition end to described
The direction of tube body is gradually increased.
4. novel multrirange pipette according to claim 1, which is characterized in that the liquid containing chamber and the tube body
Junction be it is round table-like, the diameter of the junction is gradually reduced from the liquid containing chamber to the direction of the tube body.
5. novel multrirange pipette according to claim 1, which is characterized in that the tube body and the liquid containing chamber
It is structure as a whole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811156345.0A CN109289956A (en) | 2018-09-29 | 2018-09-29 | A kind of novel wide range pipette |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811156345.0A CN109289956A (en) | 2018-09-29 | 2018-09-29 | A kind of novel wide range pipette |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109289956A true CN109289956A (en) | 2019-02-01 |
Family
ID=65161339
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811156345.0A Pending CN109289956A (en) | 2018-09-29 | 2018-09-29 | A kind of novel wide range pipette |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109289956A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111589480A (en) * | 2020-05-29 | 2020-08-28 | 成都瀚辰光翼科技有限责任公司 | Pipetting device, micro-system pipetting system comprising pipetting device and method thereof |
| CN111957365A (en) * | 2020-08-22 | 2020-11-20 | 江苏科华医疗器械科技有限公司 | Multi-range quantitative pipette and pipetting method thereof |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4483825A (en) * | 1982-07-09 | 1984-11-20 | Fatches Keith R | Pipette and filter combination |
| CN2323858Y (en) * | 1997-12-29 | 1999-06-16 | 奚建荣 | Multifunctional convenient pipette |
| CN203075971U (en) * | 2012-12-29 | 2013-07-24 | 山东科技大学 | Transfer pipette |
| CN204365334U (en) * | 2014-12-10 | 2015-06-03 | 山东精工电子科技有限公司 | A kind of graduated pipette |
| CN204816580U (en) * | 2015-07-31 | 2015-12-02 | 中华人民共和国日照出入境检验检疫局 | Injection formula pipette |
| CN206392096U (en) * | 2016-12-26 | 2017-08-11 | 山东科技大学 | A kind of Novel pipette of quick and precisely transfer liquid |
-
2018
- 2018-09-29 CN CN201811156345.0A patent/CN109289956A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4483825A (en) * | 1982-07-09 | 1984-11-20 | Fatches Keith R | Pipette and filter combination |
| CN2323858Y (en) * | 1997-12-29 | 1999-06-16 | 奚建荣 | Multifunctional convenient pipette |
| CN203075971U (en) * | 2012-12-29 | 2013-07-24 | 山东科技大学 | Transfer pipette |
| CN204365334U (en) * | 2014-12-10 | 2015-06-03 | 山东精工电子科技有限公司 | A kind of graduated pipette |
| CN204816580U (en) * | 2015-07-31 | 2015-12-02 | 中华人民共和国日照出入境检验检疫局 | Injection formula pipette |
| CN206392096U (en) * | 2016-12-26 | 2017-08-11 | 山东科技大学 | A kind of Novel pipette of quick and precisely transfer liquid |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111589480A (en) * | 2020-05-29 | 2020-08-28 | 成都瀚辰光翼科技有限责任公司 | Pipetting device, micro-system pipetting system comprising pipetting device and method thereof |
| CN111957365A (en) * | 2020-08-22 | 2020-11-20 | 江苏科华医疗器械科技有限公司 | Multi-range quantitative pipette and pipetting method thereof |
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| PB01 | Publication | ||
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Application publication date: 20190201 |