CN104089047A - Selector valve capable of preventing cross contamination - Google Patents
Selector valve capable of preventing cross contamination Download PDFInfo
- Publication number
- CN104089047A CN104089047A CN201410305721.3A CN201410305721A CN104089047A CN 104089047 A CN104089047 A CN 104089047A CN 201410305721 A CN201410305721 A CN 201410305721A CN 104089047 A CN104089047 A CN 104089047A
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- China
- Prior art keywords
- inner core
- outer shroud
- valve
- selector
- valve body
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- 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
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K11/00—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves
- F16K11/02—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit
- F16K11/08—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only taps or cocks
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Multiple-Way Valves (AREA)
Abstract
The invention relates to a selector valve capable of preventing cross contamination. The selector valve comprises a valve body, an outer ring and an inner core. Multiple valve body channels and an outer ring placing groove are evenly formed in the valve body. An outer ring selection hole, a valve core groove and an outer ring selection switch are arranged on the outer ring. The outer ring selection switch is of a protrusion structure at 90 degrees. The outer ring selection hole is used for being communicated with the valve body channels in the valve body. The inner core is provided with an inner core selection channel, an inner core selection switch and an outlet. The inner core selection switch is of a protrusion structure at 45 degrees. Through forward and reverse rotation of the inner core, opening, closing and selecting are performed on the valve, and the selector valve is simple in structure, reasonable in design and capable of effectively preventing the cross contamination in the selection process.
Description
Technical field
The present invention relates to valve technology field, specifically relate to a kind of selector valve that prevents cross pollution.
Background technique
Selector valve is widely used in each analysis technical field such as chemistry, biology, food, oil at present, the structure of applying at present maximum selector valves is made up of valve body and spool, spool can be along reverse turn, valve body is motionless, on valve body, be laid with multiple valve body entrances, spool is provided with multiple spool imports of counting with valve body entrance etc., in the middle of spool, be provided with an outlet, the spool of this selector valve can turn clockwise, also can be rotated counterclockwise, but in the process of rotation, unavoidably have the problem of raw material cross pollution.Due to the needs of experiment, prior art also has has carried out some changes to common selector valve, to adapt to the needs of particular experiment, if Chinese patent CN2935123Y is in order to overcome the ineffective problems of mode such as flow injection, Generation-Atomic Fluorescence Spectrometry, sequential injection, a kind of eight logical valves and eight logical valve injection converting systems are disclosed, the angle of four central angles that its spool is provided with is that the arc runner of 45 ° is corresponding, form four passages, make two imports and two outlets be communicated with respectively different quantity tubes before and after exchange, form two different logical liquid status; Chinese patent CN203606331U discloses a kind of inlet system of measuring for sulfur hexafluoride gas decomposition product, this system adopts ten logical sampling valves to replace plural six-way injection valve to complete, improve test rate, the change of these structures all keeps away irrelevant inner fluid passage in unavoidable selection course and enters spool, fluid is wherein produced to the problem of polluting, particularly, for high-precision experiment, these pollutions are very important on the impact of result.
Summary of the invention
The present invention is mainly in order to solve the existing technical problem of above-mentioned prior art, and a kind of selector valve that can prevent cross pollution in selection course is provided.Above-mentioned technical problem of the present invention is mainly solved by following technical proposals: a kind of selector valve that prevents cross pollution, comprise valve body, outer shroud and inner core, on described valve body, be laid with multiple valve channels and an outer shroud resettlement groove, described outer shroud is provided with an outer shroud selecting hole, a spool groove and an outer shroud selector switch, described outer shroud selector switch is 90 ° of convex breach, described outer shroud selecting hole is for communicating with the valve channel on valve body, described inner core is provided with inner core selector channel, inner core selector switch and outlet, described inner core selector switch is 45 ° of protruding structures, described inner core is embedded in the spool groove on outer shroud, by the inner core selector switch on inner core, can realize with outer shroud small angle and relatively rotating, and can drive outer shroud to rotate together, thereby make the outer shroud selecting hole on outer shroud realize the preselected of passage by the valve channel of aiming on valve body, described outer shroud is embedded in the outer shroud resettlement groove on valve body, described outer shroud can only clockwise rotate, described inner core can also can rotate counterclockwise clockwise, described valve body is motionless.
A described complete selector channel process comprises following step:
On state: under this state, the inner core selector channel on inner core communicates with the some valve channels on the outer shroud selecting hole on outer shroud and valve body, realizes the conducting of a certain valve channel.
Off state: power mechanism drives inner core to rotate 45 ° separately, thereby the outer shroud selecting hole on inner core selector channel and the outer shroud on inner core is staggered, and realizes closing of passage.
Passage is preselected: power mechanism drives inner core to be rotated further, now, inner core drives outer shroud selector switch by inner core selector switch, make inner core follow outer shroud to clockwise rotate together, after the outer shroud selecting hole on outer shroud communicates with the valve channel of wanting conducting, power mechanism stops operating, now, due to the inner core selector channel on inner core and not conducting of valve channel, fluid can't flow.
Channel location: power mechanism rotates backward 45 °, now, due to outer shroud one-way rotation clockwise, outer shroud is static, inner core rotates counterclockwise 45 °, thereby make valve channel on inner core selector channel and the valve body on inner core and the outer shroud selecting hole conducting on outer shroud, realize flowing of whole inner fluid passage.
By the above movement step of valve body, can realize a certain pipeline of selectivity conducting, and in whole selection course, avoid irrelevant inner fluid passage to enter interior ring, fluid is wherein produced and polluted.
As preferably, the valve channel number on described selector valve valve body is to be more than or equal to 2 integer.
The present invention can prevent that the selector valve of cross pollution is by forward and reverse rotation of inner core, realize the switch of selector valve and select two kinds of actions, simple in structure, reasonable in design, can effectively prevent the cross pollution producing in selection course, analysis technical field has been played to larger impact.
Brief description of the drawings
Fig. 1 is the structural representation of inner core in the embodiment of the present invention.
Fig. 2 is the structural representation of embodiment of the present invention outer-loop.
Fig. 3 is the structural representation of valve body in the embodiment of the present invention.
Fig. 4 is on state structural drawing in the embodiment of the present invention.
Fig. 5 is off state structural drawing in the embodiment of the present invention.
Fig. 6 is embodiment of the present invention passage preliminary election structure graph.
Fig. 7 is channel location structural drawing in the embodiment of the present invention.
Fig. 8 is on state structural drawing again in the embodiment of the present invention.
Description of reference numerals:
In figure, 1 is inner core selector switch, and 2 is inner core selector channel, and 3 is inner core, and 4 is outer shroud selector switch, and 5 is outer shroud selecting hole, and 6 is outer shroud, and 7 is valve channel, and 8 is valve body, and 9 is outlet, and 10 is spool groove, and 11 is outer shroud resettlement groove.
Embodiment
Below by embodiment, and by reference to the accompanying drawings, technological scheme of the present invention is described in further detail.
Embodiment: referring to Fig. 1-8, taking eight logical valves as example, above-mentioned technical problem of the present invention is mainly solved by following technical proposals: a kind of eight logical valves that prevent cross pollution, comprise valve body 8, outer shroud 6 and inner core 3, on described valve body 8, be laid with multiple valve channels 7 and an outer shroud resettlement groove 11, described outer shroud 6 is provided with an outer shroud selecting hole 5, a spool groove 10 and an outer shroud selector switch 4, described outer shroud selector switch 4 is 90 ° of convex breach, described outer shroud selecting hole 5 is for communicating with the valve channel 7 on valve body, described inner core 3 is provided with inner core selector channel 2, inner core selector switch 1 and outlet 9, described inner core selector switch 1 is 45 ° of protruding structures, described inner core 3 is embedded in the spool groove 10 on outer shroud 6, by the inner core selector switch 1 on inner core 3, can realize with outer shroud 6 small angles and relatively rotating, and can drive outer shroud 6 to rotate together, thereby make that outer shroud selecting hole 5 on outer shroud 6 can to realize passage preselected by aiming at valve channel on valve body, described outer shroud 6 is embedded in the outer shroud resettlement groove 11 on valve body 8, described outer shroud 6 can only clockwise rotate, described inner core 3 can also can rotate counterclockwise clockwise, described valve body 8 is motionless.A described complete selector channel process comprises following step:
On state: under this state, the inner core selector channel 2 on inner core 3 communicates with the 7th valve channel 7g on outer shroud selecting hole 5 and valve body 8 on outer shroud 6, realizes the conducting of the 7th valve channel 7g.
Off state: power mechanism drives inner core 3 to rotate 45 ° separately, thus staggered with the outer shroud selecting hole 5 on outer shroud 6 in the inner core selector channel 2 on inner core 3, realize closing of the 7th valve channel 7g.
Passage is preselected: power mechanism drives inner core 3 to be rotated further, now, inner core 3 drives outer shroud selector switch 4 by inner core selector switch 1, inner core 3 is clockwise rotated together with outer shroud 6, after the outer shroud selecting hole 4 on outer shroud 6 communicates with the 4th valve channel 7d, power mechanism stops operating, now, due to the inner core selector channel 2 on inner core 3 and the 4th not conducting of valve channel 7d, fluid can't flow.
Channel location: power mechanism rotates backward 45 °, now, due to outer shroud 6 one-way rotation clockwise, outer shroud 6 is static, inner core 3 rotates counterclockwise 45 °, thereby make the 4th valve channel 7d on inner core selector channel on inner core 32 and valve body and outer shroud selecting hole 4 conductings on outer shroud 6, realize flowing of whole inner fluid passage.
Finally, it should be pointed out that above embodiment is only the more representational example of the present invention.Obviously, the invention is not restricted to above-described embodiment, can also have many distortion.Any simple modification, equivalent variations and modification that every foundation technical spirit of the present invention is done above embodiment, all should think and belong to protection scope of the present invention.
Claims (4)
1. one kind can prevent the selector valve of cross pollution, it is characterized in that described selector valve comprises valve body, outer shroud and inner core, on described valve body, be laid with multiple valve channels and an outer shroud resettlement groove, described outer shroud is provided with an outer shroud selecting hole, a spool groove and an outer shroud selector switch, described outer shroud selecting hole is for communicating with the valve channel on valve body, described inner core is provided with inner core selector channel, inner core selector switch and outlet, described inner core is embedded in the spool groove on outer shroud, and described outer shroud is embedded in the outer shroud resettlement groove on valve body.
2. a kind of selector valve that prevents cross pollution according to claim 1, is characterized in that described outer shroud selector switch is 90 ° of convex breach, and described inner core selector switch is 45 ° of protruding structures.
3. a kind of selector valve that prevents cross pollution according to claim 1, is characterized in that described outer shroud can only clockwise rotate, and described inner core can also can rotate counterclockwise clockwise, and described valve body is motionless.
4. a kind of selector valve that prevents cross pollution according to claim 1, is characterized in that the valve channel number on described selector valve valve body is to be more than or equal to 2 integer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410305721.3A CN104089047B (en) | 2014-06-30 | 2014-06-30 | A kind of selector valve preventing cross pollution |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410305721.3A CN104089047B (en) | 2014-06-30 | 2014-06-30 | A kind of selector valve preventing cross pollution |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104089047A true CN104089047A (en) | 2014-10-08 |
| CN104089047B CN104089047B (en) | 2016-08-17 |
Family
ID=51636789
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410305721.3A Expired - Fee Related CN104089047B (en) | 2014-06-30 | 2014-06-30 | A kind of selector valve preventing cross pollution |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104089047B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114545014A (en) * | 2022-04-22 | 2022-05-27 | 成都理工大学 | Dual channel sampling system |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03242239A (en) * | 1990-02-21 | 1991-10-29 | Asahi Eng Co Ltd | Fluid distributor |
| CN1533488A (en) * | 2002-02-27 | 2004-09-29 | 株式会社亚瑟科技 | Vaned spool type directional control valve and four-way reversible valve for cooling cycle system |
| CN1571897A (en) * | 2001-08-15 | 2005-01-26 | 株式会社阿玛达 | Directional control valve |
| JP2007010139A (en) * | 2005-06-02 | 2007-01-18 | Kureha Corp | Rotary selector valve, selector valve device, filled package body manufacturing device and filled package body manufacturing method |
| CN202182211U (en) * | 2011-08-24 | 2012-04-04 | 李燕 | Water-saving thermostat for shower with zero discharge of cold water |
| CN204062003U (en) * | 2014-06-30 | 2014-12-31 | 浙江泛泰仪器有限公司 | A kind of selector valve preventing cross pollution |
-
2014
- 2014-06-30 CN CN201410305721.3A patent/CN104089047B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03242239A (en) * | 1990-02-21 | 1991-10-29 | Asahi Eng Co Ltd | Fluid distributor |
| CN1571897A (en) * | 2001-08-15 | 2005-01-26 | 株式会社阿玛达 | Directional control valve |
| CN1533488A (en) * | 2002-02-27 | 2004-09-29 | 株式会社亚瑟科技 | Vaned spool type directional control valve and four-way reversible valve for cooling cycle system |
| JP2007010139A (en) * | 2005-06-02 | 2007-01-18 | Kureha Corp | Rotary selector valve, selector valve device, filled package body manufacturing device and filled package body manufacturing method |
| CN202182211U (en) * | 2011-08-24 | 2012-04-04 | 李燕 | Water-saving thermostat for shower with zero discharge of cold water |
| CN204062003U (en) * | 2014-06-30 | 2014-12-31 | 浙江泛泰仪器有限公司 | A kind of selector valve preventing cross pollution |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114545014A (en) * | 2022-04-22 | 2022-05-27 | 成都理工大学 | Dual channel sampling system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104089047B (en) | 2016-08-17 |
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Granted publication date: 20160817 |
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