CN108686728A - Multrirange liquid automatic quantitation pipette device - Google Patents
Multrirange liquid automatic quantitation pipette device Download PDFInfo
- Publication number
- CN108686728A CN108686728A CN201810485532.7A CN201810485532A CN108686728A CN 108686728 A CN108686728 A CN 108686728A CN 201810485532 A CN201810485532 A CN 201810485532A CN 108686728 A CN108686728 A CN 108686728A
- Authority
- CN
- China
- Prior art keywords
- pipette
- push rod
- tapered
- clamp spring
- shrapnel
- 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- Withdrawn
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Classifications
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- 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
- B01L3/0224—Pipettes, i.e. with only one conduit for withdrawing and redistributing liquids of the plunger pump type having mechanical means to set stroke length, e.g. movable stops
Abstract
The invention discloses multrirange liquid automatic quantitation pipette devices, including pipette body, cross push rod, piston is set at the top of the cross push rod, cross push rod band piston push-in pipette body inner cavity, the pipette body, it is respectively provided with graduation mark on cross push rod, the pipette body lower port outer wall setting auxiliary puts forth effort plate, push plate is arranged in cross push rod bottom, the tapered suction nozzle of the centrally disposed pipette in pipette body top, the centrally disposed tapered stick of piston tip, after tapered stick enters pipette tapered suction nozzle, the tapered stick outer wall is bonded completely with the tapered suction nozzle inner wall of pipette;The present invention avoids forming vacuum state in pipette when imbibition, by quantitative concave scale on pushing ram and gauge assembly elastic card, quantitatively discharges liquid.
Description
Technical field
The present invention relates to chemical experiment measurers, specifically multrirange liquid automatic quantitation pipette device.
Background technology
Laboratory carries out chemical analysis, it is often necessary to quantitatively pipette reagent or various acid solutions.Under normal conditions, pipette with
Ear washing bulb collocation uses, but has many defects:Both hands compounding practice is needed, it is cumbersome;Operating personnel there are certain requirements,
The more difficult grasp of new hand;Even skilled operator, in operation due to uncontrollable hand shaking, also it is very easy to
Generate error;In addition, during drawing liquid, the bad assurance of absorption dynamics of ear washing bulb is very easy to generation liquid and falls
The phenomenon that suction;It easilys lead to liquid and enters ear washing bulb to pollute the waste etc. with liquid;If if acid solution, easily
Operating personnel are damaged.The more mature product for pipetting liquid is liquid-transfering gun currently on the market, but because of liquid-transfering gun price
And the reasons such as " one inhales a note ", it is actual use and few.The improvement for being directed to existing pipette at present is also relatively more, such as:Directly
Connect the measurement for replacing ear washing bulb to carry out liquid using syringe or vacuum pump.But it is easy the shape in pipette using syringe
At vacuum, lead to not accurate measuring;Vacuum pump replaces ear washing bulb to carry out the measurement of liquid, and not only equipment is heavy, operation is compared
The problem of bothering, and liquid suck-back be still unavoidable from using vacuum pump.In addition, when laboratory carries out batch sample processing,
When one secondary dozens or even hundreds of piece of sample of processing, each reagent needs equivalent to be filled into each sample, and each sample is again
Plurality of reagents (or acid solution) is filled, entire experiment there will be hundreds of reagent filling work, if using the shifting of " one inhales a note "
Liquid rifle just seems particularly troublesome.
Application number:201310554605.0,2014-03-12, which disclose nose catheter, feeds quantitative infusion device, including a band
There are the syringe and infusion device of piston rod, syringe to be placed in the fixing groove of infusion device, is set on the push rod of infusion device
There is quantitative control device, the one side of handle towards the trigger of infusion device is equipped with is determined by what " L " shape positive stop hook and gag lever post formed
Amount adjusting apparatus, or the quantitative adjusting device that is made of wedge block and threaded rod, nut.Above-mentioned push rod is increased into scale,
And cancel the structure after being simplified after quantitative adjusting device.
Application number:201710544863.9 publication date 2017-11-17 discloses a kind of accurate fixed-quantity injector, it is related to one kind
Syringe, injection tube lower end are equipped with pintle connector, and the upper end of injection tube is equipped with finger ring, and the piston of push-pull rod lower end is in injection
In medicinal liquid cavity in cylinder, it is cased with rubber on the piston and pushes head, piston handle, the outer rim of push-pull rod are equipped in the upper end of push-pull rod
Face is equipped with a plurality of slot, and embedded rubber strip is equipped in slot, and the amount of the being cased with Position Pipe on the middle part outer edge surface of push-pull rod measures position
The upper end of pipe is equipped with amount and adjusts expanding ring, and the middle part for measuring Position Pipe is in the mouth in the middle part of finger ring, measures the circular hole wall in Position Pipe
It is equipped with plane A, amount Position Pipe is equipped with measuring ruler from top to bottom;The present invention measures the meter of Position Pipe using being sleeved on push-pull rod
Gage is positioned, and the amount that expanding ring limitation injection is adjusted by amount obtains precisely quantitative purpose.
File disclosed above is related-art technology, although disclosing some aufbauprinciples, overall technical architecture will solve
Concrete technical problems etc. and the application and differ.
Invention content
The purpose of the present invention is to provide multrirange liquid automatic quantitation pipette device, avoid being formed in pipette when imbibition true
Dummy status quantitatively discharges liquid by quantitative concave scale on pushing ram and gauge assembly elastic card.
In order to achieve the above objectives, present invention employs following technical solution, multrirange liquid automatic quantitation pipette device, packets
Pipette body, cross push rod are included, piston is set at the top of the cross push rod, cross push rod band piston is pushed into pipette
Pipe body lumen is respectively provided with graduation mark on the pipette body, cross push rod, and the pipette body lower port outer wall is set
It sets auxiliary and puts forth effort plate, push plate is arranged in cross push rod bottom, and the centrally disposed pipette in pipette body top is tapered
Suction nozzle, the centrally disposed tapered stick of piston tip, after tapered stick enters pipette tapered suction nozzle, the tapered stick outer wall with
The tapered suction nozzle inner wall of pipette is bonded completely;For the cross push rod tool there are four seamed edge, each seamed edge opens up different height
Groove, the different graduation marks of each groove alignment settings form different concave scales, and the auxiliary puts forth effort plate and opens up meter
Clamp spring socket is measured, metering clamp spring socket is inserted into metering clamp spring, and metering clamp spring opens up recess, the concave scale and above-mentioned measuring card
The recess of spring matches corresponding measuring fixed amount.
The metering clamp spring include matrix, in erect shrapnel, lower horizontal shrapnel, matrix be fixed on metering clamp spring spigot, in erect
Shrapnel is located in the middle part of matrix, in erect horizontal shrapnel outer side edges under the connection of shrapnel bottom, lower horizontal shrapnel inside edge opens up recess.
The pipette body lower port inner wall setting pipette nozzle protrusion.
The present invention has the advantages that compared with prior art:
The front of multrirange liquid automatic quantitation pipette body is equipped with measurement scale line, and the upper end of pipette body is equipped with
Auxiliary puts forth effort plate, and auxiliary puts forth effort plate inner round side equipped with pipette nozzle protrusion;Auxiliary puts forth effort plate circle outside and is equipped with metering clamp spring socket;
The other end of multrirange liquid automatic quantitation pipette body is fixedly connected with the tapered suction of multrirange liquid automatic quantitation pipette device
Head, and the tapered suction nozzle of pipette device is connect with multrirange pipette tube column concentric circles.Four sides of cross pushing ram indicate push rod
Graduation mark, and it is consistent with multrirange liquid automatic quantitation pipette body front scale;Four plate face outer edge difference of cross push rod
It is carved with 4 kinds (such as:1ml, 2.5ml, 3.5ml, 5ml) different spacing concave scale, cross pushing ram lower end is connected with push plate, separately
One end is connected with piston, and the top of piston is connected with tapered rod, tapered gradient and the tapered suction of pipette device of tapered rod with concentric circles
It is identical, when cross pushing ram and piston are pushed into pipette body bottom, tapered rod should with it is complete inside the tapered suction nozzle of pipette device
Full connected, therebetween without voids left.By mobile pushing ram, pushing ram drives the piston of pushing ram leading portion, piston driving with
The tapered rod that piston connects with one heart, piston and when being moved to pipette body bottom with the concentric tapered rod connecting of piston, discharge
Air in pipette body and tapered pipette avoids forming vacuum state in pipette when imbibition.By fixed on pushing ram
Concave scale and gauge assembly elastic card are measured, liquid is quantitatively discharged;Liquid level in observation tube and pipette tube column can also be passed through
Front quantitatively discharges liquid equipped with measurement scale line.And it can disassemble, clean after use and is dry, be effectively ensured down
Cleannes when secondary use.
Description of the drawings
Fig. 1 is the structural schematic diagram of the multrirange liquid automatic quantitation pipette device of the present invention;
Fig. 2 is the structural schematic diagram after pipette tube column installation metering clamp spring;
Fig. 3 is the structural schematic diagram of the cross push rod with concave scale and tapered stick.
Fig. 4 is the structural schematic diagram for measuring clamp spring.
In figure:Pipette body 1, auxiliary put forth effort the tapered suction nozzle 3 of plate 2, pipette, graduation mark 4, tapered stick 5, piston 6, ten
Font push rod 7, push plate 8, concave scale 9, push rod graduation mark 10, pipette nozzle protrusion 11, metering clamp spring socket 12, metering clamp spring
13。
Specific implementation mode
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation describes, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
It please refers to Fig.1 to Fig.4, the present invention provides a kind of technical solution:Multrirange liquid automatic quantitation pipette device, including inhale
Piston 6 is arranged in buret main body 1, cross push rod 7, the cross push rod top, and cross push rod band piston is pushed into pipette
Pipe body lumen is respectively provided with graduation mark on the pipette body, cross push rod, and the pipette body lower port outer wall is set
It sets auxiliary and puts forth effort plate 2, push plate 8, the centrally disposed pipette cone in pipette body top is arranged in cross push rod bottom
Type suction nozzle 3, the centrally disposed tapered stick 5 of piston tip, after tapered stick enters pipette tapered suction nozzle, outside the tapered stick
Wall is bonded completely with the tapered suction nozzle inner wall of pipette;For the cross push rod tool there are four seamed edge, each seamed edge opens up difference
The different graduation marks of the groove of height, each groove alignment settings form different concave scales 9 (such as:1ml,2.5ml,
3.5ml, 5ml), the auxiliary puts forth effort plate and opens up metering clamp spring socket 12, and metering clamp spring socket is inserted into metering clamp spring 13, measuring card
Spring opens up recess, and the recess of the concave scale and above-mentioned metering clamp spring matches corresponding measuring fixed amount.The metering clamp spring packet
Include matrix, in erect shrapnel, lower horizontal shrapnel, matrix is fixed on metering clamp spring spigot, in erect shrapnel and be located in the middle part of matrix, in perpendicular bullet
Horizontal shrapnel outer side edges under the connection of piece bottom, lower horizontal shrapnel inside edge opens up recess.The pipette body lower port inner wall is set
Set pipette nozzle protrusion 11.
Cross shown in Fig. 3 is promoted into bar assembly first, injects multrirange liquid automatic quantitation pipette master shown in Fig. 2
In body 1, movement of the bar assembly in pipette tube column 1, the taper to connect together with piston and with piston are promoted by cross
Stick does reciprocating movement together, when cross promotes bar assembly to be advanced to pipette body bottom, drives most pipette body and cone
Tapered pipette is inserted into reagent liquid to be inhaled by the air in shape pipette at this time, then cross pushing ram is twitched directly outward
To pipette body top, liquid is filled in pipette device.
When quantitative filling liquid, two ways can be used:That is observation metering filling and the filling of clamp spring automatic gauge.
Observation metering fills:It is automatically fixed with multrirange liquid by observing liquid level in cross pushing ram progradation
The scale on pipette body 1 is measured, stops promoting immediately when reaching number of division.Aforesaid operations are repeated, until in pipette body 1
Liquid adds.
Since there are four different liquid feeding concave scales on cross push rod, before the filling of clamp spring automatic gauge, first according to institute
The adding amount of liquid is needed, selectes the spill scale on cross push rod, and the selected concave scale 9 determined is directed at gauge assembly and is inserted
12 central points of mouth.The concave port of metering clamp spring 13 is sticked into selected cross push rod side again, prevents cross push rod in progradation
Rotation, metering 13 other end of clamp spring are inserted into gauge assembly socket 12 and block, to prevent extracting.
When metering filling, as cross pushing ram 7 promotes in multrirange liquid automatic quantitation pipette body 1, when ten
On word push rod concave scale 9 by measure clamp spring concave port card when, metering clamp spring can under the effect of elasticity, into cross push rod
Upper concave scale 9, cross push rod are slightly blocked and prevent to promote, that is, reach adding amount.Aforesaid operations are repeated, until pipette
Liquid adds in main body 1.
The invention both may be used the scale 4 above visual observation pipette tube column 1 and determined during discharging liquid
Liquid burst size;Metering clamp spring 13 can also be used quantitatively to discharge liquid with concave scale 9 on push rod.And in cross push rod 7
On, using the scale concave port carved on four edges of cross there are four types of different measuring lengths, reach four kinds of range quantitative filling effects
Fruit.
In the description of the present invention, it is to be understood that, temporald eixis or position relationship are orientation based on ... shown in the drawings
Or position relationship, it is merely for convenience of the description present invention, spy must be had by not indicating or implying the indicated device or element
Fixed orientation, with specific azimuth configuration and operation, therefore be not considered as limiting the invention.
It although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with
Understanding without departing from the principles and spirit of the present invention can carry out these embodiments a variety of variations, modification, replace
And modification, the scope of the present invention is defined by the appended.
Claims (3)
1. multrirange liquid automatic quantitation pipette device, including pipette body, cross push rod, the cross push rod top is set
Piston is set, cross push rod band piston is pushed into pipette body inner cavity, is respectively provided on the pipette body, cross push rod
Graduation mark, the pipette body lower port outer wall setting auxiliary put forth effort plate, and push plate is arranged in cross push rod bottom, special
Sign is, the tapered suction nozzle of the centrally disposed pipette in pipette body top, the centrally disposed tapered stick of piston tip, when
After tapered stick enters the tapered suction nozzle of pipette, the tapered stick outer wall is bonded completely with the tapered suction nozzle inner wall of pipette;Described ten
For font push rod tool there are four seamed edge, each seamed edge opens up the groove of different height, the different quarters of each groove alignment settings
Degree line forms different concave scales, and the auxiliary puts forth effort plate and opens up metering clamp spring socket, and metering clamp spring socket is inserted into measuring card
Spring, metering clamp spring open up recess, and the recess of the concave scale and above-mentioned metering clamp spring matches corresponding measuring fixed amount.
2. multrirange liquid automatic quantitation pipette device according to claim 1, which is characterized in that the metering clamp spring includes
Matrix, in erect shrapnel, lower horizontal shrapnel, matrix is fixed on metering clamp spring spigot, in erect shrapnel and be located in the middle part of matrix, in perpendicular shrapnel
Horizontal shrapnel outer side edges under the connection of bottom, lower horizontal shrapnel inside edge opens up recess.
3. multrirange liquid automatic quantitation pipette device according to claim 1 or 2, which is characterized in that the pipette master
Pipette nozzle protrusion is arranged in body lower port inner wall.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810485532.7A CN108686728A (en) | 2018-05-18 | 2018-05-18 | Multrirange liquid automatic quantitation pipette device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810485532.7A CN108686728A (en) | 2018-05-18 | 2018-05-18 | Multrirange liquid automatic quantitation pipette device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108686728A true CN108686728A (en) | 2018-10-23 |
Family
ID=63847596
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810485532.7A Withdrawn CN108686728A (en) | 2018-05-18 | 2018-05-18 | Multrirange liquid automatic quantitation pipette device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108686728A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110585024A (en) * | 2019-10-28 | 2019-12-20 | 秦皇岛爱晖药业有限公司 | Adjustable quantitative liquid-transfering device |
| 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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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202113444U (en) * | 2011-06-24 | 2012-01-18 | 上海双鸽实业有限公司 | Special insulin syringe |
| CN202909214U (en) * | 2012-11-28 | 2013-05-01 | 马福莲 | Continuous quantitative injector for diabetic patient |
| US20140276588A1 (en) * | 2013-03-14 | 2014-09-18 | Boston Scientific Scimed, Inc. | Injection devices with controllable depth adjustability and methods of use |
| CN204220161U (en) * | 2014-11-11 | 2015-03-25 | 周建庆 | Chemical experiment quantitative priming device |
| CN206853707U (en) * | 2017-05-24 | 2018-01-09 | 中国人民解放军第四军医大学 | A kind of Urine proteins measure uses preservative quantitative adding device |
-
2018
- 2018-05-18 CN CN201810485532.7A patent/CN108686728A/en not_active Withdrawn
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202113444U (en) * | 2011-06-24 | 2012-01-18 | 上海双鸽实业有限公司 | Special insulin syringe |
| CN202909214U (en) * | 2012-11-28 | 2013-05-01 | 马福莲 | Continuous quantitative injector for diabetic patient |
| US20140276588A1 (en) * | 2013-03-14 | 2014-09-18 | Boston Scientific Scimed, Inc. | Injection devices with controllable depth adjustability and methods of use |
| CN204220161U (en) * | 2014-11-11 | 2015-03-25 | 周建庆 | Chemical experiment quantitative priming device |
| CN206853707U (en) * | 2017-05-24 | 2018-01-09 | 中国人民解放军第四军医大学 | A kind of Urine proteins measure uses preservative quantitative adding device |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110585024A (en) * | 2019-10-28 | 2019-12-20 | 秦皇岛爱晖药业有限公司 | Adjustable quantitative liquid-transfering device |
| 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 |
| CN111957365B (en) * | 2020-08-22 | 2023-08-04 | 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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Legal Events
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|---|---|---|---|
| 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 | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20181023 |