CN107233944B - A kind of liquid transfer gun head - Google Patents
A kind of liquid transfer gun head Download PDFInfo
- Publication number
- CN107233944B CN107233944B CN201710648966.XA CN201710648966A CN107233944B CN 107233944 B CN107233944 B CN 107233944B CN 201710648966 A CN201710648966 A CN 201710648966A CN 107233944 B CN107233944 B CN 107233944B
- Authority
- CN
- China
- Prior art keywords
- gun head
- liquid transfer
- transfer gun
- liquid
- link slot
- 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.)
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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
- B01L3/0275—Interchangeable or disposable dispensing tips
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01L—CHEMICAL OR PHYSICAL LABORATORY APPARATUS FOR GENERAL USE
- B01L2200/00—Solutions for specific problems relating to chemical or physical laboratory apparatus
- B01L2200/06—Fluid handling related problems
- B01L2200/0631—Purification arrangements, e.g. solid phase extraction [SPE]
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01L—CHEMICAL OR PHYSICAL LABORATORY APPARATUS FOR GENERAL USE
- B01L2300/00—Additional constructional details
- B01L2300/06—Auxiliary integrated devices, integrated components
- B01L2300/0681—Filter
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- Health & Medical Sciences (AREA)
- Clinical Laboratory Science (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Devices For Use In Laboratory Experiments (AREA)
Abstract
The present invention provides a kind of liquid transfer gun heads, including the first liquid transfer gun head (1) and the second liquid transfer gun head (2)；First liquid transfer gun head (1) includes being sequentially connected logical sharp mouth shape imbibition end (11), tubulose liquid storage chamber (12) and pipette tips tail portion (13)；Sealing at the top of pipette tips tail portion (13) is equipped with several filter hole (3) in its side；Second liquid transfer gun head (2) includes lid (21), filter layer (22) and link slot (23)；Lid (21) is set in the pipette tips tail portion (13) of the first liquid transfer gun head (1) outside, and filter layer (22) is arranged between link slot (23) and lid (21)；It opens up in the second liquid transfer gun head (2) terminal position two sides there are two groove, link slot (23) is embedded in groove.The present invention efficiently solves the problems, such as that leakproofness between liquid transfer gun head and liquid-transfering gun toggle and liquid transfer gun head stability in use are poor, meanwhile, the present invention effectively prevent polluting by setting double medium filtration layer.
Description
Technical field
The present invention relates to liquid-transfering gun fields, and in particular to a kind of liquid transfer gun head.
Background technique
Liquid-transfering gun is one kind of pipettor, is usually used in that laboratory is a small amount of or micro liquid pipettes, the liquid relief of different size
Rifle matches corresponding liquid transfer gun head and uses.Existing liquid transfer gun head is mostly that polypropylene material is made, and there is following ask
Topic:
(1) leakproofness between liquid-transfering gun toggle and liquid transfer gun head is poor, and weeping can occur after imbibition；
(2) frictional force between the inner wall smooth of liquid transfer gun head, with liquid-transfering gun toggle is small, and liquid transfer gun head is easily loose after imbibition
It moves to fall off on liquid-transfering gun toggle, stability in use is poor；
(3) it to guarantee the leakproofness between liquid transfer gun head and liquid-transfering gun toggle, needs in assembly with biggish power, this meeting
Cause the abrasion of liquid-transfering gun toggle to influence leakproofness, in addition, also easily cause in liquid-transfering gun toggle excessive insertion liquid transfer gun head,
Cause the damage of liquid transfer gun head；
(4) it during liquid relief is released, if rate of withdraw is too fast, will lead in the rapid pumpback to liquid transfer gun head of liquid relief simultaneously
Liquid-transfering gun toggle is polluted, will cause the pollution to next liquid relief.
Moreover, liquid-transfering gun, needs frequently to replace pipette tips during use, once have a liquid transfer gun head by
Pollution, will pollute liquid-transfering gun, in turn result in the pollution of subsequent all liquid transfer gun heads, this will result in cross contamination, to make
Obtain experimental data inaccuracy.
It is therefore desirable to study a kind of novel liquid transfer gun head.
Summary of the invention
Goal of the invention: in order to overcome the deficiencies in the prior art, the present invention provides a kind of liquid transfer gun head, can be effective
Prevent liquid-transfering gun from polluting, and the even closer stabilization of the connection between liquid-transfering gun.
Technical solution:
A kind of liquid transfer gun head, including the first liquid transfer gun head and the second liquid transfer gun head；First liquid transfer gun head include according to
Secondary sharp mouth shape imbibition end, tubulose liquid storage chamber and the pipette tips tail portion being connected；Sealing, is equipped in its side at the top of the pipette tips tail portion
Several filter hole；Second liquid transfer gun head includes lid, filter layer and link slot；The lid is set in described first and moves
Outside the pipette tips tail portion of liquid pipette tips, second liquid transfer gun head passes through filter hole on the pipette tips tail portion and first liquid-transfering gun
Head connection；The filter layer is arranged between the link slot and the lid；In the second liquid transfer gun head terminal position two
Side is opened up there are two groove, and the link slot is inlayed in the groove.
The structure of the liquid storage chamber is the tubulose liquid storage chamber of uniform diameter or is the tubulose liquid storage chamber that middle part is convex.
Filter layer is externally provided in the filter hole.
The groove that the second liquid transfer gun head terminal position two sides open up is dovetail groove.
The link slot uses elastic material.
The crowded slot that allows for facilitating liquid-transfering gun to be inserted and fixed is equipped on the inside of the link slot.
The filter layer is specially that multi-layered high-density fiberglass combination forms.
The utility model has the advantages that
Link slot is arranged in liquid transfer gun head of the invention at an upper portion thereof, while the crowded slot, effectively solution of allowing being arranged in link slot
The problem of leakproofness and liquid transfer gun head stability in use difference between liquid transfer gun head and liquid-transfering gun toggle, liquid relief of the invention
Pipette tips structure is simple, easy to use, and stability in use is good with versatility.Meanwhile the present invention was arranged in the first liquid transfer gun head side
Filtering layer, the liquid that can effectively prevent in liquid transfer gun head flows into the second liquid transfer gun head, and is provided in the second liquid transfer gun head
Filtering layer carries out double shield, effectively prevent polluting.
Detailed description of the invention
Fig. 1 is the structural diagram of the present invention.
Wherein, 1 is the first liquid transfer gun head, and 2 be the second liquid transfer gun head, and 21 be lid, and 22 be filter layer, and 23 be link slot, 3
For filter hole.
Specific embodiment
The present invention will be further explained with reference to the accompanying drawing.
Fig. 1 is the structural diagram of the present invention.As shown in Figure 1, liquid transfer gun head of the invention include the first liquid transfer gun head 1 with
And second liquid transfer gun head 2.First liquid transfer gun head 1 includes the storage for being sequentially connected logical sharp mouth shape imbibition end 11, uniform diameter
Sap cavity 12 and pipette tips tail portion 13；The pipette tips tail portion 13 seals, and several filter hole 3 is equipped in its side, outside the filter hole 3
Equipped with filter layer, the pollutant inside the first liquid transfer gun head 1 is blocked in the first liquid transfer gun head 1 by the filter layer,
It will not enter in the second liquid transfer gun head 2.
Second liquid transfer gun head 2 includes lid 21, filter layer 22 and link slot 23；The lid 21 is set in described
Outside the pipette tips tail portion 13 of first liquid transfer gun head 1, second liquid transfer gun head 2 by filter hole 3 on the pipette tips tail portion 13 with
First liquid transfer gun head 1 is connected to.The filter layer 22 is arranged between the link slot 23 and the lid 21, by described
Pollutant inside second liquid transfer gun head 2 is blocked in the second liquid transfer gun head 2 by filter layer, will not be entered in liquid-transfering gun,
It has further ensured pollution-free.Trapezoidal groove there are two being opened up in the 2 terminal position two sides of the second liquid transfer gun head, the connection
Slot 23 is inlayed in the groove；The link slot 23 uses elastic material, is equipped with to squeeze on the inside of it and allows slot, can be convenient liquid relief
Rifle is inserted and fixed.
When liquid transfer gun head and liquid-transfering gun of the invention is attached, liquid-transfering gun is inserted into the company of second liquid transfer gun head 2
Access slot 23 allows slot to squeeze into and fix, is not susceptible to fall off in use, stability is good by crowded in link slot 23.?
When carrying out liquid relief, liquid-transfering gun misoperation causes liquid relief too many, filter hole 3 on 1 pipette tips tail portion 13 of the first liquid transfer gun head and
Filter layer can prevent the pollutant in the first liquid transfer gun head 1 from entering the lid 21 of the second liquid transfer gun head 2, also can be absorbed one
A little liquid.Meanwhile second liquid transfer gun head 2 filter layer 22 can further prevent pollutant and absorb liquid, to liquid-transfering gun into
Row duplicate protection prevents from polluting.
In the present invention, filter layer is specially that multi-layered high-density fiberglass combination forms.
The above is only a preferred embodiment of the present invention, it should be pointed out that: for the ordinary skill people of the art
For member, various improvements and modifications may be made without departing from the principle of the present invention, these improvements and modifications are also answered
It is considered as protection scope of the present invention.
Claims (7)
1. a kind of liquid transfer gun head, it is characterised in that: including the first liquid transfer gun head (1) and the second liquid transfer gun head (2)；Described first
Liquid transfer gun head (1) includes being sequentially connected logical sharp mouth shape imbibition end (11), tubulose liquid storage chamber (12) and pipette tips tail portion (13)；It is described
Sealing at the top of pipette tips tail portion (13) is equipped with several filter hole (3) in its side；Second liquid transfer gun head (2) includes lid
(21), filter layer (22) and link slot (23)；The lid (21) is set in the pipette tips tail portion of first liquid transfer gun head (1)
(13) outside, second liquid transfer gun head (2) passes through filter hole (3) on the pipette tips tail portion (13) and first liquid transfer gun head
(1) it is connected to；The filter layer (22) is arranged between the link slot (23) and the lid (21)；In second liquid-transfering gun
Head (2) terminal position two sides are opened up there are two groove, and the link slot (23) is inlayed in the groove.
2. liquid transfer gun head according to claim 1, it is characterised in that: the structure of the liquid storage chamber (12) is uniform diameter
Tubulose liquid storage chamber is tubulose liquid storage chamber that middle part is convex.
3. liquid transfer gun head according to claim 1, it is characterised in that: be externally provided with filter layer in the filter hole (3).
4. liquid transfer gun head according to claim 1, it is characterised in that: the second liquid transfer gun head (2) terminal position two sides
The groove opened up is dovetail groove.
5. liquid transfer gun head according to claim 1, it is characterised in that: the link slot (23) uses elastic material.
6. liquid transfer gun head according to claim 1, it is characterised in that: be equipped on the inside of the link slot (23) and facilitate liquid relief
The crowded slot that allows that rifle is inserted and fixed.
7. liquid transfer gun head according to claim 1, it is characterised in that: the filter layer is specially multi-layered high-density glass fibers
Dimension is composed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710648966.XA CN107233944B (en) | 2017-08-01 | 2017-08-01 | A kind of liquid transfer gun head |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710648966.XA CN107233944B (en) | 2017-08-01 | 2017-08-01 | A kind of liquid transfer gun head |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107233944A CN107233944A (en) | 2017-10-10 |
| CN107233944B true CN107233944B (en) | 2019-09-03 |
Family
ID=59989145
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710648966.XA Active CN107233944B (en) | 2017-08-01 | 2017-08-01 | A kind of liquid transfer gun head |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107233944B (en) |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4346754B2 (en) * | 1999-10-26 | 2009-10-21 | 日東電工株式会社 | How to make a pipette filter |
| US7335337B1 (en) * | 2001-09-11 | 2008-02-26 | Smith James C | Ergonomic pipette tip and adapters |
| US20090220386A1 (en) * | 2008-02-29 | 2009-09-03 | Ferri Joseph E | Porous Sealing Material |
| CN102921482A (en) * | 2012-11-06 | 2013-02-13 | 无锡耐思生物科技有限公司 | Pipetting gun head structure with filter elements |
| CN104258916B (en) * | 2014-10-15 | 2016-02-03 | 浙江硕华医用塑料有限公司 | Disposable liquid transfer gun head |
| CN205216872U (en) * | 2015-12-18 | 2016-05-11 | 北京雷根生物技术有限公司 | Graphite alkene filters formula micropipettor suction head |
-
2017
- 2017-08-01 CN CN201710648966.XA patent/CN107233944B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN107233944A (en) | 2017-10-10 |
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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 | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20190802 Address after: Room 1119, Block B, West of 100 Yunlongshan Road, Jianye District, Nanjing City, Jiangsu Province Applicant after: Nanjing Gonghui Technology Co., Ltd. Address before: 210019 No. 79 Chating East Street, Jianye District, Nanjing City, Jiangsu Province Applicant before: Nanjing giant scientific equipment Co., Ltd. |
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| GR01 | Patent grant | ||
| GR01 | Patent grant |