CN105344395A - Pipette capable of rotatably replacing gun heads - Google Patents
Pipette capable of rotatably replacing gun heads Download PDFInfo
- Publication number
- CN105344395A CN105344395A CN201510841149.7A CN201510841149A CN105344395A CN 105344395 A CN105344395 A CN 105344395A CN 201510841149 A CN201510841149 A CN 201510841149A CN 105344395 A CN105344395 A CN 105344395A
- Authority
- CN
- China
- Prior art keywords
- rifle head
- gun
- revolving part
- fixture
- passage
- 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.)
- Granted
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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
- B01L3/0289—Apparatus for withdrawing or distributing predetermined quantities of fluid
- B01L3/0293—Apparatus for withdrawing or distributing predetermined quantities of fluid for liquids
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01L—CHEMICAL OR PHYSICAL LABORATORY APPARATUS FOR GENERAL USE
- B01L2400/00—Moving or stopping fluids
- B01L2400/02—Drop detachment mechanisms of single droplets from nozzles or pins
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01L—CHEMICAL OR PHYSICAL LABORATORY APPARATUS FOR GENERAL USE
- B01L2400/00—Moving or stopping fluids
- B01L2400/04—Moving fluids with specific forces or mechanical means
- B01L2400/0403—Moving fluids with specific forces or mechanical means specific forces
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- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Clinical Laboratory Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Sampling And Sample Adjustment (AREA)
Abstract
The invention provides a pipette capable of rotatably replacing gun heads. The pipette comprises a gun body and the gun heads, wherein a piston cavity is arranged inside the gun body, and a piston is arranged inside the piston cavity, and the gun heads are arranged at the end part of the gun body. The pipette is characterized in that each gun head comprises a fixed part connected with the gun body and a revolving part connected with the fixed part cooperatively; a ventilation hole is formed in the fixed part; the ventilation hole is communicated with the piston cavity of the gun body; and a plurality of perforated gun heads are arranged on the revolving part. By rotating the revolving part, after one of the perforated gun heads directly faces the ventilation hole on the fixed part, the piston can be pulled to generate a negative pressure in the gun head, the ventilation hole and the piston cavity which are communicated to each other, so that a reagent can be pipette into the gun head; after the pipette is transferred to a corresponding container, the piston is pushed to squeeze out the reagent in the gun head; and then by rotating the revolving part, the other perforated gun head directly faces the ventilation hole on the fixed part, so that another reagent can be further pipette, as a result, the efficiency of the pipette is high, correct operation is ensured, thus guaranteeing the safety, reliability and quickness in experiments.
Description
Technical field
The present invention relates to a kind of liquid-transfering gun, particularly a kind of liquid-transfering gun rotating replacement rifle head, belongs to test apparatus design and manufacturing technology field.
Background technology
Liquid-transfering gun is the instrument that Bioexperiment is commonly used, and experimental liquid can be transferred in another vessel from vessel by liquid-transfering gun.Mutually pollute for avoiding reagent and affect experimental result, in usual experiment when using liquid-transfering gun to draw different reagent, each reagent correspondence is needed to use a liquid-transfering gun, or could use after replacing, a cleaning rifle head, the former causes liquid-transfering gun quantity too much, takes up space, impact operation, it is loaded down with trivial details to there is operation in the latter, affects experiment progress and operating efficiency, makes troubles to experiment.Therefore be necessary to be improved prior art.
Summary of the invention
For solve existing liquid-transfering gun draw different liquids time, need configure dedicated liquid-transfering gun, or frequent clean, change liquid-transfering gun, cause operation too loaded down with trivial details, affect the problems such as conventional efficient, the invention provides a kind of liquid-transfering gun of rotatable replacement rifle head.
The present invention is completed by following technical proposal: a kind of liquid-transfering gun rotating replacement rifle head, comprise band plunger shaft in it, the body of a gun of piston is provided with in plunger shaft, and be located at the rifle head of body of a gun end, it is characterized in that described rifle head comprises the fixture be connected with the body of a gun, the revolving part matched with fixture, described fixture is provided with passage, this passage is communicated with the plunger shaft of the body of a gun, described revolving part is provided with multiple through rifle head, so that by the rotation of revolving part, the rifle head making one of them through is just to after the passage on fixture, piston can be pulled to make the rifle head of connection, passage, after plunger shaft produces negative pressure, reagent can be aspirated on rifle head, after moving to corresponding container, promote piston the reagent in rifle head to be extruded, the rifle head that rotation revolving part makes another through is just to after the passage on fixture, the suction of another kind of reagent can be completed again, so i.e. fast changeable rifle head, and same rifle head can repeatedly draw same reagent.
Extend to edge and bottom in the middle part of passage self-retaining part on described fixture, namely the interior upper end of passage is positioned at fixture top, and be connected with body of a gun plunger shaft, the outer lower end of passage is positioned at fixture bottom, and the rifle head through with revolving part is matched but be not connected.
Rifle head through on described revolving part arranges multiple along the peripheral interval of revolving part, and matched with the passage on fixture but be not connected after each through rifle head upper end is rotated in place, lower end is unsettled.
Described revolving part center is provided with through hole, bearing is provided with in through hole, described fixture is provided with the minor axis to downward-extension, this minor axis lower end is spirally connected through the bearing in the through hole of revolving part center and through hole and nut, revolving part is fixed on fixture by minor axis and nut, and revolving part is rotated, to realize replacing or the rotation of rifle head around minor axis.
Described fixture and revolving part are set to cylinder or polygon cylinder.
Described revolving part is positioned at each through rifle head place and is provided with groove, be provided with sealing ring in groove, to prevent reagent from leaking outside by sealing ring.
The present invention has following advantages and effect: adopt such scheme, revolving part can be rotated easily, like a cork, the rifle head making one of them through is just to after the passage on fixture, piston can be pulled to make the rifle head of connection, passage, plunger shaft produce negative pressure after, reagent can be aspirated on rifle head, after moving to corresponding container, promoting piston can extrude the reagent in rifle head; Rotate rifle head that revolving part makes another through more just to after the passage on fixture, the suction of another kind of reagent can be completed again, so get final product quick rotation rifle head, complete the displacement of different reagent, without the need to frequently changing the body of a gun, and same rifle head can repeatedly draw same reagent, without the need to each cleaning.After sticking different labels in addition on multiple through rifle head outer wall wall, can aspirate for the reagent of correspondence, effectively prevent wrong suction reagent.Not only increase and move liquid efficiency, and ensure correct operation, ensure experimental safe, reliable, quick.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Detailed description of the invention
Below in conjunction with accompanying drawing, the present invention is described further.
The liquid-transfering gun rotating replacement rifle head provided by the invention, comprise band plunger shaft 11 in it, the body of a gun 1 of piston 2 is provided with in plunger shaft 11, and be located at the rifle head of the body of a gun 1 lower end, described rifle head comprises the fixture 4 be connected with the body of a gun 1, the revolving part 5 matched with fixture 4, described fixture 4 is provided with passage 3, this passage 3 is communicated with the plunger shaft 11 of the body of a gun 1, described revolving part 5 is provided with multiple through rifle head 6, extend to edge and bottom in the middle part of passage 3 self-retaining part 4 on described fixture 4, namely the interior upper end of passage 3 is positioned at fixture 4 top, and be connected with the body of a gun 1 plunger shaft 11, the outer lower end of passage 3 is positioned at fixture 4 bottom, and the rifle head 6 through with revolving part 5 is matched but be not connected, rifle head 6 through on described revolving part 5 arranges multiple along the peripheral interval of revolving part 5, and matched with the passage 3 on fixture 4 but be not connected after each through rifle head 6 upper end is rotated in place, lower end is unsettled, described revolving part 5 center is provided with through hole, bearing 10 is provided with in through hole, described fixture 4 is provided with the minor axis 8 to downward-extension, the lower end of this minor axis 8 is spirally connected with nut 7 through the bearing 10 in the through hole of revolving part 5 center and through hole, revolving part 5 is fixed on the retainers 4 by minor axis 8 and nut 7, and revolving part 5 is rotated, to realize replacing or the rotation of through rifle head 6 around minor axis 8, described fixture 4 and revolving part 5 are with being set to cylinder, described revolving part 5 is positioned at each through rifle head 6 place and is provided with groove, be provided with sealing ring 9 in groove, to prevent reagent from leaking outside by sealing ring.Described multiple through rifle head 6 outer wall wall posts different labels, to distinguish different reagent, effectively prevents wrong suction reagent.
During work, rotate revolving part 5, the rifle head 6 making one of them through is just to after the passage 3 on fixture 4, piston 2 can be pulled to make the rifle head 6 of connection, passage 3, plunger shaft 11 produce negative pressure after, reagent can be aspirated on rifle head 6, after moving to corresponding container, promoting piston 2 can extrude the reagent in rifle head 6; Rotate rifle head that revolving part 5 makes another through more just to after the passage 3 on fixture, can complete again the suction of another kind of reagent, so namely fast changeable rifle head, draws different reagent.
Claims (6)
1. one kind rotates the liquid-transfering gun replacing rifle head, comprise the body of a gun being provided with piston in it in band plunger shaft, plunger shaft, and be located at the rifle head of body of a gun end, it is characterized in that described rifle head comprises the fixture be connected with the body of a gun, the revolving part matched with fixture, described fixture is provided with passage, and this passage is communicated with the plunger shaft of the body of a gun, and described revolving part is provided with multiple through rifle head.
2. the liquid-transfering gun rotating replacement rifle head according to claim 1, it is characterized in that extending to edge and bottom in the middle part of the passage self-retaining part on described fixture, the interior upper end of passage is positioned at fixture top, and be connected with body of a gun plunger shaft, the outer lower end of passage is positioned at fixture bottom, and the rifle head through with revolving part is matched but be not connected.
3. the liquid-transfering gun rotating replacement rifle head according to claim 1, it is characterized in that rifle head through on described revolving part arranges multiple along the peripheral interval of revolving part, matched with the passage on fixture but be not connected after each through rifle head upper end is rotated in place, lower end is unsettled.
4. the liquid-transfering gun rotating replacement rifle head according to claim 1, it is characterized in that described revolving part center is provided with through hole, bearing is provided with in through hole, described fixture is provided with the minor axis to downward-extension, and this minor axis lower end is spirally connected through the bearing in the through hole of revolving part center and through hole and nut.
5. the liquid-transfering gun rotating replacement rifle head according to claim 1, is characterized in that described fixture and revolving part are set to cylinder or polygon cylinder.
6. revolving part described in is positioned at each through rifle head place and is provided with groove, in groove, be provided with sealing ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510841149.7A CN105344395B (en) | 2015-11-28 | 2015-11-28 | It is a kind of to rotate the liquid-transfering gun for replacing pipette tips |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510841149.7A CN105344395B (en) | 2015-11-28 | 2015-11-28 | It is a kind of to rotate the liquid-transfering gun for replacing pipette tips |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105344395A true CN105344395A (en) | 2016-02-24 |
| CN105344395B CN105344395B (en) | 2017-12-26 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510841149.7A Active CN105344395B (en) | 2015-11-28 | 2015-11-28 | It is a kind of to rotate the liquid-transfering gun for replacing pipette tips |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105344395B (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107715935A (en) * | 2017-11-17 | 2018-02-23 | 交通运输部天津水运工程科学研究所 | A kind of multiple-way valve and apply its more pipette tips liquid-transfering guns |
| CN109401966A (en) * | 2018-11-07 | 2019-03-01 | 深圳大学 | Cell culture machinery arm |
| CN109480954A (en) * | 2018-12-13 | 2019-03-19 | 北京天星博迈迪医疗器械有限公司 | A kind of general-purpose crossover sub and planer tool apparatus |
| CN113694980A (en) * | 2021-09-22 | 2021-11-26 | 于吉(南京)生物科技有限公司 | Multiple culture solution transfer device |
| WO2022012562A1 (en) * | 2020-07-14 | 2022-01-20 | 广东润鹏生物技术有限公司 | Pipette, sample processing apparatus, and molecular diagnosis system |
| CN116767683A (en) * | 2023-08-21 | 2023-09-19 | 哈尔滨瀚邦医疗科技有限公司 | Streptococcus suis type 2 gene detection kit and application thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1373688A (en) * | 1998-06-10 | 2002-10-09 | 拜奥希特公司 | Suction device with means for removing replaceable tip |
| CN102475925A (en) * | 2010-11-23 | 2012-05-30 | 天津捷希医疗设备有限公司 | Digital multifunctional medical flushing and suction gun |
| CN205413072U (en) * | 2015-11-28 | 2016-08-03 | 云南舜喜再生医学工程有限公司 | Liquid -transfering gun of rotatory replacement rifle head |
-
2015
- 2015-11-28 CN CN201510841149.7A patent/CN105344395B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1373688A (en) * | 1998-06-10 | 2002-10-09 | 拜奥希特公司 | Suction device with means for removing replaceable tip |
| CN102475925A (en) * | 2010-11-23 | 2012-05-30 | 天津捷希医疗设备有限公司 | Digital multifunctional medical flushing and suction gun |
| CN205413072U (en) * | 2015-11-28 | 2016-08-03 | 云南舜喜再生医学工程有限公司 | Liquid -transfering gun of rotatory replacement rifle head |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107715935A (en) * | 2017-11-17 | 2018-02-23 | 交通运输部天津水运工程科学研究所 | A kind of multiple-way valve and apply its more pipette tips liquid-transfering guns |
| CN109401966A (en) * | 2018-11-07 | 2019-03-01 | 深圳大学 | Cell culture machinery arm |
| CN109480954A (en) * | 2018-12-13 | 2019-03-19 | 北京天星博迈迪医疗器械有限公司 | A kind of general-purpose crossover sub and planer tool apparatus |
| CN109480954B (en) * | 2018-12-13 | 2024-09-03 | 北京天星博迈迪医疗器械有限公司 | Universal adapter and planing tool device |
| WO2022012562A1 (en) * | 2020-07-14 | 2022-01-20 | 广东润鹏生物技术有限公司 | Pipette, sample processing apparatus, and molecular diagnosis system |
| CN113694980A (en) * | 2021-09-22 | 2021-11-26 | 于吉(南京)生物科技有限公司 | Multiple culture solution transfer device |
| CN116767683A (en) * | 2023-08-21 | 2023-09-19 | 哈尔滨瀚邦医疗科技有限公司 | Streptococcus suis type 2 gene detection kit and application thereof |
| CN116767683B (en) * | 2023-08-21 | 2023-11-03 | 哈尔滨瀚邦医疗科技有限公司 | Streptococcus suis type 2 gene detection kit and application thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105344395B (en) | 2017-12-26 |
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| GR01 | Patent grant |