CN204448046U - Quantitative tubular type pipettor - Google Patents
Quantitative tubular type pipettor Download PDFInfo
- Publication number
- CN204448046U CN204448046U CN201520044015.8U CN201520044015U CN204448046U CN 204448046 U CN204448046 U CN 204448046U CN 201520044015 U CN201520044015 U CN 201520044015U CN 204448046 U CN204448046 U CN 204448046U
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- CN
- China
- Prior art keywords
- air pump
- quantity tube
- imbibition
- liquid
- discharge opeing
- 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.)
- Expired - Fee Related
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Abstract
The utility model discloses a kind of quantitatively tubular type pipettor, comprise quantity tube device and liquid sucking-discharging device.Described quantity tube device includes polytetrafluoroethylene (PTFE) quantity tube, drainage bar, antifouling mouth, leakage fluid dram.Polytetrafluoroethylene (PTFE) quantity tube contacts with drainage bar, and antifouling mouth is contrary with drainage tube direction.During imbibition, surplus liquid is by drainage bar drainage.Accumulate in leakage fluid dram; Quick connector, threeway, check valve, imbibition air pump, magnetic valve, discharge opeing air pump and liquid sucking-discharging button is had in described liquid sucking-discharging device.Check valve is connected with imbibition air pump, is worked by key control imbibition air pump by imbibition.Magnetic valve is connected with discharge opeing air pump, by discharge opeing by key control discharge opeing air pump and electromagnetic valve work.It is fast that the utility model gets liquid speed, strong alkali-acid resistance, volatile acid, organic solvent etc.Move liquid precision high, reproducible.Have antifouling mouth in quantity tube device, preventing pollution gets liquid.
Description
Technical field
The utility model relates to the accurate dispensing device of solution in laboratory, is specially a kind of quantitatively tubular type pipettor.
Background technology
Quantitative tubular type pipettor is widely used in the unit laboratories such as food security, pharmaceutical production, environmental protection, Disease epizootic, quality surveillance, commodity inspection, scientific research institutions, institution of higher learning, the solution precision in laboratory measures operative installations.1, it is use pipette and liquid-transfering gun to measure that traditional solution precision measures.Conventional pipettes pipettes liquid complex steps, and pipette rinse is comparatively slow, and the more difficult control of liquid position, due to the existence of wall cling phenomenon, makes fluid discharge speed slower.So pipette to move liquid loaded down with trivial details, speed is slow.Liquid-transfering gun, due to material and sealing problem, can not pipette concentrated acid, volatile acid and a large amount of volatile organic solvent.Liquid-transfering gun should be noted that the sealing problem of rifle point and rifle when pipetting liquid.Liquid-transfering gun one grade and second gear rely on spring force to distinguish, different operators due to dynamics not of uniform size, custom difference, the liquid volume that pipettes also inconsistent.Cause systematic error.Liquid-transfering gun is directly connected with rifle point, and centre does not have transition, if liquid-transfering gun rifle head is contaminated, is easy to pollute institute and gets solution.
utility model content:
The technical problem that the utility model solves is to provide a kind of quantitatively tubular type pipettor, to solve the problem in above-mentioned background technology.
The technical problem that the utility model solves realizes by the following technical solutions: quantitatively tubular type pipettor comprises quantity tube device and liquid sucking-discharging device; Described quantity tube device comprises the quantity tube, transition blister cavities and the quick connector that are sealed connected together, the inner chamber top of transition blister cavities is inserted in the upper end of quantity tube, the lower end of snap joint is positioned at the inner chamber top of transition blister cavities, and snap joint lower port is arranged to restrain and amesiality antifouling mouth; The transition blister cavities inwall of antifouling mouth bottom is provided with drainage bar, and bottom transition blister cavities, side is provided with leakage fluid dram.Described liquid sucking-discharging device comprises shell, shell lower end is provided with the socket be connected with described quick connector, be separately installed with imbibition air pump and discharge opeing air pump in the enclosure, and be positioned at the rechargeable battery of shell and be positioned at the button for controlling two air pump work of outer shell outer wall; The air inlet of described imbibition air pump is communicated with snap joint by threeway with the gas outlet of discharge opeing air pump, and is provided with check valve on the air intake duct of imbibition air pump, and the escape pipe of discharge opeing air pump is provided with magnetic valve.
Beneficial effect: the utility model adopts the quantity tube of polytetrafluoroethylene (PTFE) material, noresidue, without wall built-up, strong alkali-acid resistance, organic solvent, is applicable to all solvents except bromine.Owing to adopting tetrafluoro material, drain age velocity is fast, reproducible.There is drainage bar on four fluorine tube top, destroys liquid pearl and is formed, and make each liquid level formed identical, four fluorine tube inner volume is consistent.Liquid sucking-discharging device adopts polytetrafluoroethylene (PTFE) material, and sealing gasket adopts fluorubber, can resistance to all corrosive gas.The position that the spare and accessory parts adopted due to the utility model contact with institute's liquids and liquid vapour, all adopts glass and tetrafluoro material, and sealing gasket adopts fluorubber.So this device may be used for the liquid that the liquid-transfering guns such as absorption organic solvent, the concentrated sulfuric acid, red fuming nitric acid (RFNA), concentrated hydrochloric acid can not be drawn.
Accompanying drawing explanation
Fig. 1 is utility model works schematic diagram;
Fig. 2 is structural representation of the present utility model.
Number in the figure: 1 is tetrafluoro quantity tube, 2 is four fluorine tube seal, and 3 is leakage fluid dram, and 4 is drainage bar, and 5 be antifouling mouth 6 is quick connector, 7 is magnetic valve, and 8 is check valve, and 9 is imbibition air pump, and 10 is discharge opeing air pump, 11 for washing discharge opeing button, and 12 is threeway, and 13 is rechargeable battery, and 14 is transition blister cavities.
Detailed description of the invention
In order to make actualizing technology means of the present utility model, creation characteristic, reach object and effect is easy to understand, below in conjunction with concrete diagram, set forth the utility model further.
As shown in Figure 1-2, quantitative tubular type pipettor, comprises quantity tube device and liquid sucking-discharging device.Wherein quantity tube device, containing tetrafluoro quantity tube 1, transition blister cavities 14, drainage bar 4, leakage fluid dram 3 and antifouling mouth 5; Liquid sucking-discharging device, containing quick connector 6, magnetic valve 7, check valve 8, imbibition air pump 9, discharge opeing air pump 10, liquid sucking-discharging button 11, threeway 12 and rechargeable battery 13.
In Fig. 2, quantity tube device comprises the tetrafluoro quantity tube 1, transition blister cavities 14 and the quick connector that are sealed connected together, the inner chamber top of transition blister cavities is inserted in the upper end of tetrafluoro quantity tube 1, the lower end of snap joint is positioned at the inner chamber top of transition blister cavities, and snap joint lower port is arranged to restrain and amesiality antifouling mouth; The transition blister cavities inwall of antifouling mouth bottom is provided with drainage bar, and bottom transition blister cavities, side is provided with leakage fluid dram.Tetrafluoro quantity tube 1 contacts with drainage bar 4, and surplus liquid drains into leakage fluid dram 3 by drainage bar 4.Leakage fluid dram place liquid is saved bit by bit in right amount, is emitted by leakage fluid dram 3.Antifouling mouth 5 direction is contrary with drainage bar 4 direction.Quantity tube device is connected with liquid sucking-discharging device by quick connector 6.Liquid sucking-discharging device comprises shell, shell lower end is provided with the socket be connected with described quick connector, be separately installed with imbibition air pump and discharge opeing air pump in the enclosure, and be positioned at the rechargeable battery of shell and be positioned at the button for controlling two air pump work of outer shell outer wall; The air inlet of described imbibition air pump is communicated with snap joint by threeway with the gas outlet of discharge opeing air pump, and is provided with check valve on the air intake duct of imbibition air pump, and the escape pipe of discharge opeing air pump is provided with magnetic valve.
Upper display and describe general principle of the present utility model and principal character and advantage of the present utility model.The technical staff of the industry should understand; the utility model is not restricted to the described embodiments; what describe in above-described embodiment and description just illustrates principle of the present utility model; under the prerequisite not departing from the utility model spirit and scope; the utility model also has various changes and modifications, and these changes and improvements all fall within the scope of claimed the utility model.Claimed scope of the present utility model is defined by appending claims and equivalent thereof.
Claims (2)
1. a quantitative tubular type pipettor, comprises quantity tube device and liquid sucking-discharging device; It is characterized in that: described quantity tube device comprises the quantity tube, transition blister cavities and the quick connector that are sealed connected together, the inner chamber top of transition blister cavities is inserted in the upper end of quantity tube, the lower end of snap joint is positioned at the inner chamber top of transition blister cavities, and snap joint lower port is arranged to restrain and amesiality antifouling mouth; The transition blister cavities inwall of antifouling mouth bottom is provided with drainage bar, and bottom transition blister cavities, side is provided with leakage fluid dram.
2. quantitative tubular type pipettor according to claim 1, it is characterized in that: described liquid sucking-discharging device comprises shell, shell lower end is provided with the socket be connected with described quick connector, be separately installed with imbibition air pump and discharge opeing air pump in the enclosure, and be positioned at the rechargeable battery of shell and be positioned at the button for controlling two air pump work of outer shell outer wall; The air inlet of described imbibition air pump is communicated with snap joint by threeway with the gas outlet of discharge opeing air pump, and is provided with check valve on the air intake duct of imbibition air pump, and the escape pipe of discharge opeing air pump is provided with magnetic valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520044015.8U CN204448046U (en) | 2015-01-22 | 2015-01-22 | Quantitative tubular type pipettor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520044015.8U CN204448046U (en) | 2015-01-22 | 2015-01-22 | Quantitative tubular type pipettor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204448046U true CN204448046U (en) | 2015-07-08 |
Family
ID=53654994
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520044015.8U Expired - Fee Related CN204448046U (en) | 2015-01-22 | 2015-01-22 | Quantitative tubular type pipettor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204448046U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115135415A (en) * | 2019-10-25 | 2022-09-30 | 梅特勒-托利多瑞宁有限责任公司 | Electric external piston type liquid shifter |
| CN115135414A (en) * | 2019-10-25 | 2022-09-30 | 梅特勒-托利多瑞宁有限责任公司 | Electric external piston type pipettor assembly |
| US11911767B2 (en) | 2019-10-25 | 2024-02-27 | Mettler-Toledo Rainin, LLC | Positive displacement pipette syringe identification system |
-
2015
- 2015-01-22 CN CN201520044015.8U patent/CN204448046U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115135415A (en) * | 2019-10-25 | 2022-09-30 | 梅特勒-托利多瑞宁有限责任公司 | Electric external piston type liquid shifter |
| CN115135414A (en) * | 2019-10-25 | 2022-09-30 | 梅特勒-托利多瑞宁有限责任公司 | Electric external piston type pipettor assembly |
| US11911767B2 (en) | 2019-10-25 | 2024-02-27 | Mettler-Toledo Rainin, LLC | Positive displacement pipette syringe identification system |
| CN115135415B (en) * | 2019-10-25 | 2024-04-09 | 梅特勒-托利多瑞宁有限责任公司 | Electric displacement type pipettor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150708 Termination date: 20160122 |
|
| EXPY | Termination of patent right or utility model |