CN207187773U - High-precision pipettor - Google Patents
High-precision pipettor Download PDFInfo
- Publication number
- CN207187773U CN207187773U CN201720817701.3U CN201720817701U CN207187773U CN 207187773 U CN207187773 U CN 207187773U CN 201720817701 U CN201720817701 U CN 201720817701U CN 207187773 U CN207187773 U CN 207187773U
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- blower fan
- sleeve
- sealing
- cavity volume
- core bar
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Abstract
The utility model provides a kind of high-precision pipettor, including suction pipe, sleeve, piston, core bar, absorption blower fan, extrusion blower fan, two-way switch and control unit；In being vertically connected with, the inner chamber of sleeve connects with the inner chamber of suction pipe for the sleeve and the suction pipe；The piston is arranged in the lower end of barrel bore, and barrel bore is provided with sealing dividing plate, and the top for sealing dividing plate is provided with sealing handle moving up and down, and the cavity that sealing dividing plate is formed with sleeve is divided into independent upper cavity volume and lower cavity volume by sealing handle；One end of core bar is connected with piston, and the other end of core bar is connected through sealing dividing plate with sealing handle, and core bar can be connected with sealing bulkhead seal up and downly.The utility model realizes the good speed extracted and be pushed into core bar and controlled, and ensure that the uptake of pipettor and the precision of extrusion capacity.
Description
Technical field
It the utility model is related to inspection detection equipment technology field, and in particular to a kind of high-precision pipettor.
Background technology
Pipettor is a kind of utensil for being used for quantitative transfer liquid, in work is examined in detection, it is often necessary to use liquid relief
Device is by a small amount of of collection or is quantitatively transferred in the container specified, and is widely used in the fields such as biology, chemistry.At present, it is existing
Pipettor include sleeve, suction pipe, piston and core bar, manually extract and be pushed into core bar, realize suction of the suction pipe to liquid
And extrusion；But during manually operated core bar, core bar can be caused to extract and the bad control of speed of push-in, so as to cause pipettor
Uptake and extrusion capacity it is uncontrolled.
Utility model content
For in the prior art the defects of, the utility model provides a kind of high-precision pipettor, simple in construction, realizes pair
Core bar is extracted and the control of the good speed of push-in, ensure that the uptake of pipettor and the precision of extrusion capacity.
The utility model provides a kind of high-precision pipettor, including suction pipe, sleeve, piston, core bar, draws blower fan, squeezes
Blowing machine, two-way switch and control unit；The sleeve and the suction pipe are in be vertically connected with, the inner chamber of sleeve and the inner chamber of suction pipe
Connection；The piston is arranged in the lower end of barrel bore, and barrel bore is provided with sealing dividing plate, seal dividing plate top be provided with can on
The sealing handle of lower movement, sealing handle will seal dividing plate and the cavity of sleeve formation is divided into independent upper cavity volume and lower cavity volume；
One end of core bar is connected with piston, and the other end of core bar is connected through sealing dividing plate with sealing handle, and core bar can up and downly
It is connected with sealing bulkhead seal；The air intake for drawing blower fan is connected with upper cavity volume by connecting pipe, draws going out for blower fan
Wind end is connected with lower cavity volume by connecting pipe；The air intake of the extrusion blower fan is connected with lower cavity volume by connecting pipe, is squeezed
The outlet air end of blowing machine is connected with upper cavity volume by connecting pipe；It is described absorption blower fan and extrude blower fan respectively with it is described two-way
The both ends electrical connection of switch, draw blower fan, extrusion blower fan and two-way switch and electrically connected with described control unit.
Preferably, pipettor also includes electric supply installation, and electric supply installation is placed on sleeve, or electric supply installation is placed in sleeve
Outside.
Preferably, described control unit is arranged on sleeve.
Preferably, the two-way switch is arranged on sleeve.
Preferably, it is described to draw blower fan and extrude the both sides that blower fan is separately mounted to sleeve.
Preferably, the suction pipe is provided with scale.
The beneficial effects of the utility model are embodied in：
The utility model is connected by two-way switch and draws blower fan, and the air for drawing the upper cavity volume of blower fan absorption is sent into lower hold
Chamber, sealing handle follow the air pressure change of cavity volume and lower cavity volume, and sealing handle drives piston upwards, and suction pipe can liquid draw
Body；When two-way switch connects extrusion blower fan, the air that extrusion blower fan draws lower cavity volume is sent into upper cavity volume, and sealing handle follows appearance
The air pressure change of chamber and lower cavity volume, sealing handle band piston move downward, the extrudable liquid of suction pipe；Meanwhile control unit can
Control absorption blower fan maintains a slower wind speed with extrusion blower fan, sealing handle is realized slowly up and down motion, from
And it ensure that the uptake of pipettor and the precision of extrusion capacity.
Brief description of the drawings
, below will be right in order to illustrate more clearly of the utility model embodiment or technical scheme of the prior art
The required accompanying drawing used is briefly described in embodiment or description of the prior art.In all of the figs, it is similar
Element or part are typically identified by similar reference.In accompanying drawing, each element or part might not be according to the ratios of reality
Draw.
Fig. 1 is the structural representation of the present embodiment.
In accompanying drawing, 1- suction pipes, 2- sleeves, 21- sealing dividing plates, 22- sealing handles, the upper cavity volumes of 23-, cavity volume under 24-, 3- work
Plug, 4- core bars, 5- draw blower fan, 6- extrusion blower fans, 7- two-way switch, 8- control units
Embodiment
The embodiment of technical solutions of the utility model is described in detail below in conjunction with accompanying drawing.Following examples are only
For clearly illustrating the technical solution of the utility model, therefore example is only used as, and this practicality can not be limited with this
New protection domain.
As shown in figure 1, present embodiment discloses a kind of high-precision pipettor, including suction pipe 1, sleeve 2, piston 3, core bar 4,
Draw blower fan 5, extrusion blower fan 6, two-way switch 7 and control unit, 8 sleeves 2 and suction pipe 1 in being vertically connected with, the inner chamber of sleeve 2 and
The inner chamber connection of suction pipe 1.Suction pipe 1 is provided with scale, is easy to people to observe uptake or extrusion capacity.Piston 3 is arranged in sleeve 2
The lower end of chamber, the inner chamber of sleeve 2 are provided with sealing dividing plate 21, and the top of sealing dividing plate 21 is provided with sealing handle 22 moving up and down,
Sealing handle 22 will seal dividing plate 21 and be divided into independent upper cavity volume 23 and lower cavity volume 24 with the cavity that sleeve 2 is formed.The one of core bar 4
End is connected with piston 3, and the other end of core bar 4 is connected through sealing dividing plate 21 with sealing handle 22, core bar 4 can up and downly with
Sealing dividing plate 22 is tightly connected.
The air intake for drawing blower fan 5 is connected with upper cavity volume 23 by connecting pipe, draws the outlet air end of blower fan 5 and lower cavity volume
24 are connected by connecting pipe；The air intake of extrusion blower fan 6 is connected with lower cavity volume 24 by connecting pipe, and extrusion blower fan 6 goes out
Wind end is connected with upper cavity volume 23 by connecting pipe.Draw blower fan 5 and extrude the both sides that blower fan 6 is separately mounted to sleeve 2.Draw
The both ends of blower fan 5 and extrusion blower fan 6 respectively with two-way switch 7 electrically connect, and it is equal to draw blower fan 5, extrusion blower fan 6 and two-way switch 7
Electrically connected with control unit 8.Control unit 8 is arranged on sleeve.Two-way switch 7 is arranged on sleeve.Pipettor also includes supplying
Electric installation, electric supply installation are placed on sleeve 2, or electric supply installation is placed in outside sleeve 2.
The utility model is connected by two-way switch 7 and draws blower fan 5, and the air for drawing the upper cavity volume 23 of the absorption of blower fan 5 is sent into
Lower cavity volume 24, sealing handle 22 follow the air pressure change of cavity volume 23 and lower cavity volume 24, and sealing handle 22 is transported upwards with piston 3
Dynamic, suction pipe 1 can draw liquid；When two-way switch 7 connects extrusion blower fan 6, the air that extrusion blower fan 6 draws lower cavity volume 24 is sent into
Cavity volume 23, sealing handle 22 follow the air pressure change of cavity volume 23 and lower cavity volume 24, and sealing handle 22 is transported downwards with piston 3
It is dynamic, 1 extrudable liquid of suction pipe；Meanwhile control unit 8 it is controllable draw blower fan 5 and extrude blower fan 6 maintain one it is slower
Wind speed, sealing handle 22 is realized slow up and down motion, so as to ensure that the precision of the uptake of pipettor and extrusion capacity.
Finally it should be noted that：Above example is only to illustrate the technical solution of the utility model, rather than its limitations；
Although the utility model is described in detail with reference to the foregoing embodiments, it will be understood by those within the art that：
It can still modify to the technical scheme described in previous embodiment, either to which part or all technical characteristic
Carry out equivalent substitution；And these modifications or replacement, the essence of appropriate technical solution is departed from the utility model embodiment
The scope of technical scheme, it all should cover among claim of the present utility model and the scope of specification.
Claims (6)
- A kind of 1. high-precision pipettor, it is characterised in that：Including suction pipe, sleeve, piston, core bar, draw blower fan, extrusion blower fan, Two-way switch and control unit；In being vertically connected with, the inner chamber of sleeve connects with the inner chamber of suction pipe for the sleeve and the suction pipe；The piston is arranged in set The lower end of tube inner chamber, barrel bore are provided with sealing dividing plate, and the top for sealing dividing plate is provided with sealing handle moving up and down, seals Handle will seal dividing plate and the cavity of sleeve formation is divided into independent upper cavity volume and lower cavity volume；One end of core bar is connected with piston, The other end of core bar is connected through sealing dividing plate with sealing handle, and core bar can be connected with sealing bulkhead seal up and downly；The air intake for drawing blower fan is connected with upper cavity volume by connecting pipe, and the outlet air end and lower cavity volume for drawing blower fan pass through Connecting pipe connects；The air intake of the extrusion blower fan is connected with lower cavity volume by connecting pipe, and the outlet air end and upper cavity volume for extruding blower fan pass through Connecting pipe connects；It is described draw blower fan and extrude both ends of the blower fan respectively with the two-way switch electrically connect, absorption blower fan, extrude blower fan and Two-way switch electrically connects with described control unit.
- 2. high-precision pipettor according to claim 1, it is characterised in that：Also include electric supply installation, electric supply installation is placed in On sleeve, or electric supply installation is placed in outside sleeve.
- 3. high-precision pipettor according to claim 1, it is characterised in that：Described control unit is arranged on sleeve.
- 4. high-precision pipettor according to claim 1, it is characterised in that：The two-way switch is arranged on sleeve.
- 5. high-precision pipettor according to claim 1, it is characterised in that：The absorption blower fan and extrusion blower fan are pacified respectively Mounted in the both sides of sleeve.
- 6. high-precision pipettor according to claim 1, it is characterised in that：The suction pipe is provided with scale.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720817701.3U CN207187773U (en) | 2017-07-06 | 2017-07-06 | High-precision pipettor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720817701.3U CN207187773U (en) | 2017-07-06 | 2017-07-06 | High-precision pipettor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207187773U true CN207187773U (en) | 2018-04-06 |
Family
ID=61785436
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720817701.3U Active CN207187773U (en) | 2017-07-06 | 2017-07-06 | High-precision pipettor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207187773U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113677435A (en) * | 2019-03-08 | 2021-11-19 | 瑞尔赛特股份有限公司 | Devices, systems, and methods for selecting target analytes |
-
2017
- 2017-07-06 CN CN201720817701.3U patent/CN207187773U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113677435A (en) * | 2019-03-08 | 2021-11-19 | 瑞尔赛特股份有限公司 | Devices, systems, and methods for selecting target analytes |
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