CN2738881Y - Pneumatic extrusion-decoy type liquid transfer device - Google Patents
Pneumatic extrusion-decoy type liquid transfer device Download PDFInfo
- Publication number
- CN2738881Y CN2738881Y CN 200420080040 CN200420080040U CN2738881Y CN 2738881 Y CN2738881 Y CN 2738881Y CN 200420080040 CN200420080040 CN 200420080040 CN 200420080040 U CN200420080040 U CN 200420080040U CN 2738881 Y CN2738881 Y CN 2738881Y
- Authority
- CN
- China
- Prior art keywords
- outer tube
- alien
- connecting rod
- air bag
- threaded rod
- 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 relates to a glass measuring device, or a pneumatic extrusion-decoy type liquid transfer device, mainly comprising an outer tube (1) and an air chamber (8). The top of the outer tube (1) is provided with a sealing ring (5) and a shim (6), the connecting rod (10) of the impact shim (6) is tightly locked with the socket connector (3) sheathed at the top of the outer wall of the outer tube. The locking place is sheathed with a fastener (4) and the connecting rod (10) which is provided with threaded rod (9) inside is sheathed with an air chamber (8). The outer tube (1) is provided with an ion (2) that is contacted with the bottom of the threaded rod. The liquid transfer device reduces transfusion and relict, so that has the advantage of high measuring accuracy. The air lock is sealed up uniformly, thus disassembly and scouring is convenient.
Description
Affiliated technical field
The utility model relates to a kind of glass measurement instrument, specifically a kind of pneumatic extruding alien formula pipettor that is used for laboratory sample pre-treatments absorption, shifts.
Background technology
Having the suction pipe of pipettor for the band scale now, mainly contain single whole pipette, all kinds of burets etc. marked, all is by washing ear skin balloon exhaust imbibition, easily producing liquid in managing and be stained with wall, residual, an extension phenomenon, and have equivalent sum of errors repeatability error at interval.Though its pipe outer wall has the quantitative line of scale level, does not have quantitative stopping means, drip by imbibition trickling row behind manual and the visual derection level line fully, cause the poor of half of extension, the impact analysis precision.
Summary of the invention
In order to achieve the above object, the technical solution of the utility model is: mainly comprise outer tube, air bag, described outer tube top is provided with sealing ring and pad, connecting rod by compress gasket locks with the connector that is placed in outer tube top outer wall, locking place is with securing member, in be provided with on the connecting rod of threaded rod and be with air bag, be provided with the alien who contacts with the threaded rod bottom in the outer tube.
Being locked of described connecting rod and air bag is that semicircle evagination wall and the driving fit of air bag inwall by connecting rod is impermeable; Compress impermeable through pad, soft sealing ring between described connecting rod and outer tube top; Described alien is the hollow body of top tapered, and its base is provided with the scale horizontal line on the corresponding outer tube of a circle scale horizontal line; Described threaded rod is straight-through body, and the air pressure that is produced by the air bag suction makes the alien be the moving state of upstream and downstream in reagent through threaded rod, reads metering numerical value by the scale horizontal line on the corresponding outer tube of alien base graduation mark.
The beneficial effects of the utility model are: be provided with the alien in the outer tube of pipettor, by air pressure, ray, greatly limit reduce hang drip, residual; The fine setting screw rod makes the alien base aim at outer tube scale horizontal line, guarantees metering accuracy and reappearance precision; And vent plug evenly seals, and is simple in structure, and convenient disassembly is convenient to washing.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Among Fig. 1, outer tube 1, the alien 2, connector 3, securing member 4, sealing ring 5, pad 6, the protruding wall 7 of semicircle, air bag 8, threaded rod 9, connecting rod 10.
The specific embodiment
The utility model will be further described below in conjunction with the drawings and specific embodiments.
A kind of pneumatic extruding alien formula pipettor as shown in Figure 1, its air bag 8 is connected with semicircle evagination wall 7 driving fits of connecting rod 10, connecting rod 10 is pushed down pad 6, soft sealing ring 5 compresses with outer tube 1 top, and connector 3 lockings that are with outer tube top outer wall, be locked by the securing member 4 that is enclosed within locking place, the junction of pipettor is sealed fully, impermeable, alien's 2 taper top contact of establishing in threaded rod 9 bottoms of establishing in the connecting rod and the outer tube.Hold air bag 8 inside pressure-lifts, air pressure enters outer tube 1 promotion alien 2 through threaded rod 9 and slides downwards, gas in the emptying cavity, unclamp air bag 8, the reagent in the container charges in the outer tube, promotes the alien and upwards slides, until tapering face contact threaded rod bottom, play the capacity position-limiting action, the graduation mark on alien base is equal with the scale horizontal line on the outer tube, reads metering numerical value.During transfering reagent, inside again pressure-lift air bag, the alien pushes the reagent ray to other containers.
Claims (4)
1, a kind of pneumatic extruding alien formula pipettor, mainly comprise outer tube (1), air bag (8), it is characterized in that: outer tube (1) top is provided with sealing ring (5) and pad (6), lock by the connecting rod (10) of compress gasket (6) and the connector (3) that is placed in outer tube top outer wall, locking place is with securing member (4), in be provided with on the connecting rod (10) of threaded rod (9) and be with air bag (8), be provided with the alien (2) who contacts with the threaded rod bottom in the outer tube (1).
2, a kind of pneumatic extruding alien formula pipettor according to claim 1 is characterized in that: described connecting rod (10) is impermeable with the driving fit of air bag inwall by the semicircle evagination wall (7) of connecting rod with being locked of air bag (8).
3, a kind of pneumatic extruding alien formula pipettor according to claim 1, it is characterized in that: described alien (2) is the hollow body of top tapered, its base is provided with the scale horizontal line on the corresponding outer tube of a circle scale horizontal line.
4, a kind of pneumatic extruding alien formula pipettor according to claim 1 is characterized in that: described threaded rod (9) is straight-through body, and the air pressure that is produced by air bag (8) suction makes the alien be the moving state of upstream and downstream in reagent through threaded rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420080040 CN2738881Y (en) | 2004-10-10 | 2004-10-10 | Pneumatic extrusion-decoy type liquid transfer device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420080040 CN2738881Y (en) | 2004-10-10 | 2004-10-10 | Pneumatic extrusion-decoy type liquid transfer device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2738881Y true CN2738881Y (en) | 2005-11-09 |
Family
ID=35353949
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420080040 Expired - Fee Related CN2738881Y (en) | 2004-10-10 | 2004-10-10 | Pneumatic extrusion-decoy type liquid transfer device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2738881Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102175490A (en) * | 2011-01-27 | 2011-09-07 | 北京科技大学 | Quick molten steel absorber for continuous casting crystallizer |
| CN104028320A (en) * | 2014-03-24 | 2014-09-10 | 浙江省海洋水产研究所 | Come-off-preventing and pump-back-preventing pipette tip |
| CN105964317A (en) * | 2016-05-16 | 2016-09-28 | 安徽海澄德畅电子科技有限公司 | Volume control device of glass pipette |
| CN107321401A (en) * | 2017-07-04 | 2017-11-07 | 覃晓捷 | A kind of pipette of quantitative liquid suction |
| CN114602565A (en) * | 2022-04-01 | 2022-06-10 | 江苏科华医疗器械科技有限公司 | Built-in block adjusting type pipette |
-
2004
- 2004-10-10 CN CN 200420080040 patent/CN2738881Y/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102175490A (en) * | 2011-01-27 | 2011-09-07 | 北京科技大学 | Quick molten steel absorber for continuous casting crystallizer |
| CN104028320A (en) * | 2014-03-24 | 2014-09-10 | 浙江省海洋水产研究所 | Come-off-preventing and pump-back-preventing pipette tip |
| CN104028320B (en) * | 2014-03-24 | 2015-11-18 | 浙江省海洋水产研究所 | The anti-withdrawing pipette tip of a kind of anticreep |
| CN105964317A (en) * | 2016-05-16 | 2016-09-28 | 安徽海澄德畅电子科技有限公司 | Volume control device of glass pipette |
| CN105964317B (en) * | 2016-05-16 | 2018-12-21 | 新昌县建凯电机有限公司 | A kind of amount control device of glass pipet |
| CN107321401A (en) * | 2017-07-04 | 2017-11-07 | 覃晓捷 | A kind of pipette of quantitative liquid suction |
| CN114602565A (en) * | 2022-04-01 | 2022-06-10 | 江苏科华医疗器械科技有限公司 | Built-in block adjusting type pipette |
| CN114602565B (en) * | 2022-04-01 | 2023-06-02 | 江苏科华医疗器械科技有限公司 | Built-in block body adjusting type pipette |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |