CN107233944A - A kind of liquid transfer gun head - Google Patents
A kind of liquid transfer gun head Download PDFInfo
- Publication number
- CN107233944A CN107233944A CN201710648966.XA CN201710648966A CN107233944A CN 107233944 A CN107233944 A CN 107233944A CN 201710648966 A CN201710648966 A CN 201710648966A CN 107233944 A CN107233944 A CN 107233944A
- 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.)
- Granted
Links
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
Abstract
The invention provides a kind of liquid transfer gun head, 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 cylinder (12) and pipette tips afterbody (13)；Sealed at the top of pipette tips afterbody (13), some filter bores (3) are provided with 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 afterbody (13) of the first liquid transfer gun head (1) outside, and filter layer (22) is arranged between link slot (23) and lid (21)；Two grooves are offered in the second liquid transfer gun head (2) terminal position both sides, link slot (23) is embedded in groove.The problem of present invention efficiently solves the sealing and liquid transfer gun head stability in use difference between liquid transfer gun head and liquid-transfering gun toggle, meanwhile, the present invention effectively prevents pollution by setting double medium filtration layer.
Description
Technical field
The present invention relates to liquid-transfering gun field, and in particular to a kind of liquid transfer gun head.
Background technology
Liquid-transfering gun is one kind of pipettor, be usually used in laboratory it is a small amount of or it is micro liquid pipette, the liquid relief of different size
Rifle supports the use corresponding liquid transfer gun head and used.Existing liquid transfer gun head is generally that polypropylene material is made, and there is following ask
Topic：
(1) sealing 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
Move so as to be come off on liquid-transfering gun toggle, stability in use is poor；
(3) to ensure the sealing between liquid transfer gun head and liquid-transfering gun toggle, needed in assembling with larger power, this meeting
Cause the abrasion of liquid-transfering gun toggle to influence sealing, be excessively inserting in addition, also easily causing liquid-transfering gun toggle in liquid transfer gun head,
Cause the damage of liquid transfer gun head；
(4) during liquid relief is released, if rate of withdraw is too fast, can cause the rapid pumpback of liquid relief in liquid transfer gun head simultaneously
Liquid-transfering gun toggle is polluted, the pollution to next liquid relief can be caused.
Moreover, liquid-transfering gun during use, it is necessary to frequently change pipette tips, once have a liquid transfer gun head by
Pollution, will pollute liquid-transfering gun, in turn result in the pollution of follow-up all liquid transfer gun heads, this will result in cross pollution, so that
Obtain experimental data inaccurate.
It is therefore desirable to study a kind of new liquid transfer gun head.
The content 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 scheme：
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 cylinder and the pipette tips afterbody being connected；Seal, be provided with its side at the top of the pipette tips afterbody
Some filter bores；Second liquid transfer gun head includes lid, filter layer and link slot；The lid is set in described first and moved
Outside the pipette tips afterbody of liquid pipette tips, second liquid transfer gun head passes through the filter bores on the pipette tips afterbody 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 offers two grooves, and the link slot is embedded in the groove.
The structure of the liquid storage cylinder is the tubulose liquid storage cylinder of uniform diameter or is the uniform straight tube that middle part is convex.
Filter layer is externally provided with the filter bores.
The groove that the second liquid transfer gun head terminal position both sides are opened up is dovetail groove.
The link slot uses elastomeric material.
It is provided with the inside of the link slot and facilitates the crowded groove that allows that liquid-transfering gun is inserted and fixed.
The filter layer is specially that multi-layered high-density fiberglass combination is formed.
Beneficial effect：
The liquid transfer gun head of the present invention sets link slot at an upper portion thereof, while setting the crowded groove, effectively solution of allowing in link slot
The problem of sealing and liquid transfer gun head stability in use between liquid transfer gun head and liquid-transfering gun toggle are poor, liquid relief of the invention
Pipette tips structure is simple, and easy to use, stability in use is good with versatility.Meanwhile, the present invention was set in the first liquid transfer gun head side
Filtering layer, can effectively prevent the liquid in liquid transfer gun head from flowing into the second liquid transfer gun head, and be provided with the second liquid transfer gun head
Filtering layer carries out double shield, effectively prevents pollution.
Brief description of the drawings
Fig. 1 is structural representation of the 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 bores.
Embodiment
The present invention is further described below in conjunction with the accompanying drawings.
Fig. 1 is structural representation of the invention.As shown in figure 1, the present invention liquid transfer gun head include the first liquid transfer gun head 1 with
And second liquid transfer gun head 2.First liquid transfer gun head 1 includes being sequentially connected logical sharp mouth shape imbibition end 11, the storage of uniform diameter
Sap cavity 12 and pipette tips afterbody 13；The pipette tips afterbody 13 is sealed, and some filter bores 3 is provided with its side, outside the filter bores 3
Provided 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 afterbody 13 of first liquid transfer gun head 1, second liquid transfer gun head 2 by the filter bores 3 on the pipette tips afterbody 13 with
First liquid transfer gun head 1 is connected.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,
Further ensure pollution-free.Two trapezoidal grooves, the connection are offered in the terminal position both sides of the second liquid transfer gun head 2
Groove 23 is embedded in the groove；The link slot 23 uses elastomeric material, allows groove provided with squeezing on the inside of it, can facilitate liquid relief
Rifle is inserted and fixed.
When the liquid transfer gun head of the present invention is attached with liquid-transfering gun, liquid-transfering gun is inserted to the company of second liquid transfer gun head 2
Access slot 23, allows groove to squeeze into and fix, is not susceptible to come 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 bores 3 on the pipette tips afterbody 13 of the first liquid transfer gun head 1 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, can also sponge one
A little liquid.Meanwhile, the filter layer 22 of the second liquid transfer gun head 2 can further prevent pollutant and absorb liquid, and liquid-transfering gun is entered
Row duplicate protection, prevents pollution.
In the present invention, filter layer is specially that multi-layered high-density fiberglass combination is formed.
Described above is only the preferred embodiment of the present invention, it should be pointed out that：For the ordinary skill people of the art
For member, under the premise without departing from the principles of the invention, some improvements and modifications can also be made, these improvements and modifications also should
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 cylinder (12) and pipette tips afterbody (13)；It is described
Sealed at the top of pipette tips afterbody (13), some filter bores (3) are provided with 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 afterbody of first liquid transfer gun head (1)
(13) outside, second liquid transfer gun head (2) passes through the filter bores (3) on the pipette tips afterbody (13) and first liquid transfer gun head
(1) connect；The filter layer (22) is arranged between the link slot (23) and the lid (21)；In second liquid-transfering gun
Head (2) terminal position both sides offer two grooves, and the link slot (23) is embedded in the groove.
2. liquid transfer gun head according to claim 1, it is characterised in that：The structure of the liquid storage cylinder (12) is uniform diameter
Tubulose liquid storage cylinder is the uniform straight tube that middle part is convex.
3. liquid transfer gun head according to claim 1, it is characterised in that：Filter layer is externally provided with the filter bores (3).
4. liquid transfer gun head according to claim 1, it is characterised in that：Second liquid transfer gun head (2) the terminal position both 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 elastomeric material.
6. liquid transfer gun head according to claim 1, it is characterised in that：It is provided with the inside of the link slot (23) and facilitates liquid relief
The crowded groove 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 combined.
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 true CN107233944A (en) | 2017-10-10 |
| CN107233944B 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) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1095703A1 (en) * | 1999-10-26 | 2001-05-02 | Nitto Denko Corporation | Pipette tip with sintered-polymer 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 |
| CN104258916A (en) * | 2014-10-15 | 2015-01-07 | 浙江硕华医用塑料有限公司 | Disposable pipette tip |
| 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
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1095703A1 (en) * | 1999-10-26 | 2001-05-02 | Nitto Denko Corporation | Pipette tip with sintered-polymer 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 |
| CN104258916A (en) * | 2014-10-15 | 2015-01-07 | 浙江硕华医用塑料有限公司 | Disposable pipette tip |
| 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 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107233944B (en) | 2019-09-03 |
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| 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 | ||
| 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 |