CN103423483A - Valve and chromatographic instrument - Google Patents
Valve and chromatographic instrument Download PDFInfo
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- CN103423483A CN103423483A CN201310411282XA CN201310411282A CN103423483A CN 103423483 A CN103423483 A CN 103423483A CN 201310411282X A CN201310411282X A CN 201310411282XA CN 201310411282 A CN201310411282 A CN 201310411282A CN 103423483 A CN103423483 A CN 103423483A
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- valve
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Abstract
The invention provides a valve and a chromatographic instrument. The valve comprises a stator and a rotor. At least two first connecting holes and a plurality of second connecting holes are formed in the stator around the center of the stator. Arc-shaped grooves corresponding to the first connecting holes are formed in the rotor around the center of the rotor, grooves corresponding to the arc-shaped grooves and connecting grooves corresponding to the arc-shaped grooves are also formed in the rotor, and the grooves are communicated with the arc-shaped grooves through the connecting grooves to form groove structures. The rotor is attached to the stator, the arc-shaped grooves are communicated with the corresponding first connecting holes, and the grooves are communicated with the corresponding second connecting holes. By the means that the arc-shaped grooves are formed in the rotor, communication of the different groove structures and the corresponding second connecting holes can be achieved, more communication modes are obtained, the selection function of the valve is enriched, and the university of the valve is enhanced.
Description
Technical field
The present invention relates to mechanical device, relate in particular to a kind of valve and chromatograph.
Background technique
Chromatograph application chromatography is carried out the instrument of qualitative and quantitative analysis to material.Chromatograph is equipped with valve usually, by valve, selects different quantity tubes.As Figure 1-Figure 2, valve of the prior art comprises stator 100 and rotor 200, stator 100 along the circumferential direction is provided with a plurality of through holes 101, and be provided with many grooves 201 on rotor 200, to be provided with six through holes 101 on stator 100, on rotor 200, correspondence is provided with three grooves 201, by rotary rotor 200, can realize being communicated with between two through holes 101 adjacent on stator 100.Referring to Fig. 1 and Fig. 2, by rotary rotor 200, can only realize two kinds of connected states, cause in prior art the selection function of valve single, versatility is poor, uses inconvenient.
Summary of the invention
Technical problem to be solved by this invention is: a kind of valve and chromatograph are provided, and the selection function that solves valve in prior art is single, and versatility is poor, uses inconvenient defect, realizes enriching selection function, the enhancing versatility of valve, to facilitate use.
Technological scheme provided by the invention is, a kind of valve, comprise stator and rotor, and described stator Shang Raoqi center is provided with at least two the first attachment holes and several second attachment holes; Described rotor Rao Qi center is provided with the arc-shaped slot corresponding with described the first attachment hole, also is provided with the groove corresponding with described arc-shaped slot and connecting groove on described rotor, and described groove is communicated with described arc-shaped slot and forms groove structure by described connecting groove; Described rotor is attached on described stator, and described arc-shaped slot is communicated with corresponding described the first attachment hole, and described groove is communicated with corresponding described the second attachment hole.
Further, the center of circle of described the second attachment hole is distributed in and take on the circular trace that the center of described stator is the center of circle.
Further, the center of circle of a plurality of described the second attachment holes be distributed in respectively take the center of described stator as center of circle radius on different a plurality of circular traces.
Further, be provided with the auxiliary circle curve bath corresponding with described the first attachment hole on described stator, described auxiliary circle curve bath is communicated with described the first attachment hole, the radius of described auxiliary circle curve bath is identical with the radius of corresponding described arc-shaped slot, and described arc-shaped slot is communicated with described the first attachment hole by described auxiliary circle curve bath.
Further, the arc length of described auxiliary circle curve bath is not less than the arc length of corresponding with it described arc-shaped slot.
Further, described groove, described connecting groove and described arc-shaped slot are an integral channel structure.
Further, on described stator, be provided with boss structure, described the first attachment hole and described the second attachment hole are distributed on the surface of described boss structure, and described rotor is attached on the surface of described boss structure.
Further, also be fixedly connected with valve head on described stator, be provided with first external tapping corresponding with described the first attachment hole on described valve head, described valve head Shang Raoqi center is provided with the second external tapping that a plurality of and described the second attachment hole is corresponding, described the first external tapping is communicated with corresponding described the first attachment hole, described the second external tapping is communicated with corresponding described the second attachment hole, and a plurality of described the second external tappings are the divergent shape setting or a plurality of described the second external tapping is distributed on the circumferential side wall of described valve head along internal surface to the outer surface direction of described valve head.
Further, described valve is mortor operated valve or manually operated valve.
The present invention also provides a kind of chromatograph, comprises many quantity tubes, also comprises above-mentioned valve, and described quantity tube is connected in described valve between two the second attachment holes; Described chromatograph is Ion Chromatograph or liquid chromatograph.
Valve provided by the invention and chromatograph, by be provided with arc-shaped slot on rotor, in the rotor rotation process, can realize that different groove structures is communicated with the second corresponding attachment hole respectively, thereby can obtain more kinds of mode of communicating, realization can be selected multiple quantity tube by valve, realize turning one function more, operator can be according to the quantity of quantity tube, corresponding the second attachment hole that connection corresponding to quantity tube is set, just can realize that by rotary rotor different quantity tubes works, the selection function of valve has been enriched in realization, strengthened versatility, to facilitate use.
The accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technological scheme of the prior art, below will the accompanying drawing of required use in embodiment or description of the Prior Art be briefly described, apparently, accompanying drawing in the following describes is some embodiments of the present invention, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is the assembling schematic diagram one of stator and rotor in valve in prior art;
Fig. 2 is the assembling schematic diagram two of stator and rotor in valve in prior art;
The structural representation that Fig. 3 is valve embodiment of the present invention;
The assembling schematic diagram one that Fig. 4 is stator and rotor in valve embodiment of the present invention;
The structural representation one that Fig. 5 is stator in valve embodiment of the present invention;
The structural representation one that Fig. 6 is valve embodiment rotor of the present invention;
The assembling schematic diagram two that Fig. 7 is stator and rotor in valve embodiment of the present invention;
The structural representation two that Fig. 8 is stator in valve embodiment of the present invention;
The structural representation two that Fig. 9 is valve embodiment rotor of the present invention.
Embodiment
For the purpose, technological scheme and the advantage that make the embodiment of the present invention clearer, below in conjunction with the accompanying drawing in the embodiment of the present invention, technological scheme in the embodiment of the present invention is clearly and completely described, obviously, described embodiment is the present invention's part embodiment, rather than whole embodiments.Embodiment based in the present invention, those of ordinary skills, not making under the creative work prerequisite the every other embodiment who obtains, belong to the scope of protection of the invention.
As shown in Fig. 3-Fig. 6, the present embodiment valve, comprise stator 1 and rotor 2, stator 1 Shang Raoqi center is provided with at least two first attachment holes 11 and several second attachment holes 12, rotor 2 Rao Qi centers are provided with the arc-shaped slot 22 corresponding with the first attachment hole 11, also be provided with the groove corresponding with arc-shaped slot 22 21 and connecting groove 23 on rotor 2, groove 21 is communicated with described arc-shaped slot 22 and forms groove structure 201 by described connecting groove 23; Rotor 2 is attached on stator 1, and arc-shaped slot 22 is communicated with the first corresponding attachment hole 13, and groove 21 is communicated with the second corresponding attachment hole 12.Be attached on stator 1 in rotation process being centered close on same straight line of the center of circle of the spin axis of rotor 2, arc-shaped slot 22 and stator 1 at rotor 2.
Particularly, the present embodiment valve can be also manually operated valve for mortor operated valve, the present embodiment valve is not limited its driving mode, in addition, the present embodiment valve can be high pressure valve, can be also low pressure valve, the present embodiment valve is not limited its Environmental Conditions, the present embodiment valve be take mortor operated valve and is described as the assembly relation of example to stator 1 and rotor 2, and the stator 1 in the present embodiment valve and rotor 2 are arranged in shell 4 usually, and motor 5 drives rotors 2 to rotate.A plurality of groove structures 201 will be followed rotor 2 and together be rotated, and a plurality of groove structures 201 will be communicated with the second corresponding attachment hole 12.Wherein, the formed groove structure 201 of groove 21, connecting groove 23 and arc-shaped slot 22 is an integral channel structure.Rotor 2 is in rotation process, and groove structure 201 remains connected state by arc-shaped slot 22 with the first corresponding attachment hole 11, thereby guarantees that this first attachment hole 11 can be communicated with second attachment hole 12 at diverse location place by groove structure 201; Meanwhile, other groove structure 201 also will be communicated with second attachment hole 12 at corresponding diverse location place, realize that the present embodiment valve can realize multiple mode of communicating, can connect as required many quantity tubes on stator, and realize selecting as required specific quantity tube to work, realization enriched valve selection function, strengthened versatility, to facilitate use.For example: it is example that the stator 1 of take in accompanying drawing 5 has 12 the second attachment holes 12, on the stator 1 in accompanying drawing 5, can be connected with six roots of sensation quantity tube, thereby realize six kinds of mode of communicating.
Wherein, as Figure 4-Figure 6, the center of circle of the second attachment hole 12 in the present embodiment is distributed in take on the circular trace that the center of stator 1 is the center of circle, concrete, the second attachment hole 12 is distributed in take on the same circular trace that the center of stator 1 is the center of circle, corresponding, after rotor 2 fits on stator 1, the second groove 23 and the 3rd groove 24 also are distributed on the same circular trace with the second attachment hole 12 places, in rotor 2 rotation processes, the second groove 23 and the 3rd groove 24 will be communicated with from the second different attachment holes 12.Perhaps, as shown in Fig. 7-Fig. 9, the center of circle of a plurality of described the second attachment holes 12 be distributed in respectively take the center of described stator 1 as center of circle radius on different a plurality of circular traces.Concrete, take that to be provided with three the first attachment holes 11 on stator 1 in Fig. 7 be example, the second attachment hole 12 on stator 1 is divided into three parts corresponding with the first attachment hole 11, the second attachment hole 12 in three parts lay respectively at different centers of take described stator 1 as center of circle radius on three different circular traces.
Further, in order to reduce the frictional force between stator 1 and rotor 2, be provided with boss structure 10, the first attachment holes 11 and the second attachment hole 12 on stator 1 and be distributed on the surface of boss structure 10, rotor 2 is attached on the surface of boss structure 10.Concrete, boss structure 10 on stator 1 contacts with rotor 2, effectively reduced the area of contact between rotor 2 and stator 1, rotor 2 is with after boss structure 10 contacts, and by the surface of contact between rotor 2 and boss structure 10, seals up groove structure on rotor 2 and the hole structure on stator 1.Preferably, the stator 1 in the present embodiment and rotor 2 can adopt polyether-ether-ketone (be called for short: PEEK) high-abrasive material such as resin, nylon is made, and with more effective reduction friction factor, reduces wear.In addition, when the present embodiment valve is used for high pressure valve, the first attachment hole 11 in the present embodiment and the diameter of the second attachment hole 12 can be 0.1mm ~ 1.5mm, and the groove width of groove structure 201 can be 0.1mm ~ 1.5mm, and the groove depth of groove structure 201 can be 0.1mm ~ 1.5mm.
Further, also be fixedly connected with valve head 3 on stator 1, be provided with first external tapping (not shown) corresponding with described the first attachment hole 11 on valve head 3, valve head 3 Shang Raoqi centers are provided with the second external tapping 31 that a plurality of and described the second attachment hole 12 is corresponding, the first external tapping is communicated with the first attachment hole 11, the second external tapping 31 is communicated with corresponding the second attachment hole 12, and a plurality of the second external tappings 31 are a plurality of the second external tappings 31 of the divergent shape person of setting along internal surface to the outer surface direction of valve head 3 and are distributed on the circumferential side wall of valve head 3.Concrete, the second external tapping 31 is the divergent shape setting on valve head 3, thereby when occurring that the second attachment hole 12 occurs to stop up, can adopt fine needle to be inserted in the second attachment hole 12 and to be cleared up along the second external tapping 31, thereby, without dismounting the present embodiment valve, just can clear up easily the second attachment hole 12 of blocking.And the second external tapping 31 is distributed on the circumferential side wall of described valve head 3, the cross section of the second external tapping 31 is the L-type structure, more convenient processing.
Further again, as shown in Fig. 7-Fig. 9, for fear of the remaining liquid of the tail end that arc-shaped slot 22 occurs, be provided with the auxiliary circle curve bath 111 be communicated with corresponding the first attachment hole 11 on stator 1, the radius of auxiliary circle curve bath 111 is identical with the radius of corresponding arc-shaped slot 22, and arc-shaped slot 22 is communicated with the first attachment hole 11 by auxiliary circle curve bath 111.Concrete, after rotor 2 is fitted on stator 1, the tail end of arc-shaped slot 22 will overlap with auxiliary circle curve bath 111, liquid in arc-shaped slot 22 will enter into the first attachment hole 11 by auxiliary circle curve bath 111, due in rotor 2 rotation processes, the tail end of arc-shaped slot 22 will overlap with auxiliary circle curve bath 111 all the time, avoids occurring the remaining liquid of tail end of arc-shaped slot 22, has improved the precision of the present embodiment valve.Preferably, the arc length of auxiliary circle curve bath 111 is not less than the arc length of corresponding with it arc-shaped slot 22.
The present invention also provides a kind of chromatograph, comprises many quantity tubes, also comprises above-mentioned valve, and quantity tube is connected in valve between two the second attachment holes; Chromatograph is Ion Chromatograph or liquid chromatograph.
Valve provided by the invention and chromatograph, by be provided with arc-shaped slot on rotor, in the rotor rotation process, can realize that different groove structures is communicated with the second corresponding attachment hole respectively, thereby can obtain more kinds of mode of communicating, realization can be selected multiple quantity tube by valve, realize turning one function more, operator can be according to the quantity of quantity tube, corresponding the second attachment hole that connection corresponding to quantity tube is set, just can realize that by rotary rotor different quantity tubes works, the selection function of valve has been enriched in realization, strengthened versatility, to facilitate use.
Finally it should be noted that: above embodiment only, in order to technological scheme of the present invention to be described, is not intended to limit; Although with reference to previous embodiment, the present invention is had been described in detail, those of ordinary skill in the art is to be understood that: its technological scheme that still can put down in writing aforementioned each embodiment is modified, or part technical characteristics wherein is equal to replacement; And these modifications or replacement do not make the essence of appropriate technical solution break away from the spirit and scope of various embodiments of the present invention technological scheme.
Claims (10)
1. a valve, comprise stator and rotor, it is characterized in that, described stator Shang Raoqi center is provided with at least two the first attachment holes and several second attachment holes; Described rotor Rao Qi center is provided with the arc-shaped slot corresponding with described the first attachment hole, also is provided with the groove corresponding with described arc-shaped slot and connecting groove on described rotor, and described groove is communicated with described arc-shaped slot and forms groove structure by described connecting groove; Described rotor is attached on described stator, and described arc-shaped slot is communicated with corresponding described the first attachment hole, and described groove is communicated with corresponding described the second attachment hole.
2. valve according to claim 1, is characterized in that, the center of circle of described the second attachment hole is distributed in take on the circular trace that the center of described stator is the center of circle.
3. valve according to claim 1, is characterized in that, the center of circle of a plurality of described the second attachment holes be distributed in respectively take the center of described stator as center of circle radius on different a plurality of circular traces.
4. valve according to claim 1, it is characterized in that, be provided with the auxiliary circle curve bath corresponding with described the first attachment hole on described stator, described auxiliary circle curve bath is communicated with described the first attachment hole, the radius of described auxiliary circle curve bath is identical with the radius of corresponding described arc-shaped slot, and described arc-shaped slot is communicated with described the first attachment hole by described auxiliary circle curve bath.
5. valve according to claim 4, is characterized in that, the arc length of described auxiliary circle curve bath is not less than the arc length of corresponding with it described arc-shaped slot.
6. valve according to claim 1, is characterized in that, described groove, described connecting groove and described arc-shaped slot are an integral channel structure.
7. valve according to claim 1, is characterized in that, on described stator, is provided with boss structure, and described the first attachment hole and described the second attachment hole are distributed on the surface of described boss structure, and described rotor is attached on the surface of described boss structure.
8. valve according to claim 1, it is characterized in that, also be fixedly connected with valve head on described stator, be provided with first external tapping corresponding with described the first attachment hole on described valve head, described valve head Shang Raoqi center is provided with the second external tapping that a plurality of and described the second attachment hole is corresponding, described the first external tapping is communicated with corresponding described the first attachment hole, described the second external tapping is communicated with corresponding described the second attachment hole, a plurality of described the second external tappings are the divergent shape setting or a plurality of described the second external tapping is distributed on the circumferential side wall of described valve head along internal surface to the outer surface direction of described valve head.
9. valve according to claim 1, is characterized in that, described valve is mortor operated valve or manually operated valve.
10. a chromatograph, comprise many quantity tubes, it is characterized in that, also comprises described valve as arbitrary as claim 1-9, and described quantity tube is connected in described valve between two the second attachment holes; Described chromatograph is Ion Chromatograph or liquid chromatograph.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310411282.XA CN103423483B (en) | 2013-09-11 | 2013-09-11 | valve and chromatograph |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310411282.XA CN103423483B (en) | 2013-09-11 | 2013-09-11 | valve and chromatograph |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103423483A true CN103423483A (en) | 2013-12-04 |
| CN103423483B CN103423483B (en) | 2015-08-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310411282.XA Active CN103423483B (en) | 2013-09-11 | 2013-09-11 | valve and chromatograph |
Country Status (1)
| Country | Link |
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| CN (1) | CN103423483B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP7472156B2 (en) | 2019-02-20 | 2024-04-22 | エフ ホフマン－ラ ロッシュ アクチェン ゲゼルシャフト | Valve for transferring at least one fluid |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4158630A (en) * | 1978-02-24 | 1979-06-19 | Stearns Stanley D | Chromatographic multi-sample valving apparatus |
| JPS63163076A (en) * | 1986-12-26 | 1988-07-06 | Furonto Eng Kk | Valve |
| CN101617225A (en) * | 2007-02-22 | 2009-12-30 | 通用电气健康护理生物科学股份公司 | Selector valve |
| CN101680861A (en) * | 2007-05-15 | 2010-03-24 | 通用电气健康护理生物科学股份公司 | Flow divider valve |
| CN101896750A (en) * | 2008-02-14 | 2010-11-24 | 株式会社岛津制作所 | Flow channel switching valve |
| CN102209863A (en) * | 2008-11-13 | 2011-10-05 | 通用电气健康护理生物科学股份公司 | Random access rotary valve |
| CN102918309A (en) * | 2010-05-20 | 2013-02-06 | 生物辐射实验室股份有限公司 | Rotary column selector valve |
| CN203463692U (en) * | 2013-09-11 | 2014-03-05 | 青岛普仁仪器有限公司 | Valve and chromatograph |
-
2013
- 2013-09-11 CN CN201310411282.XA patent/CN103423483B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4158630A (en) * | 1978-02-24 | 1979-06-19 | Stearns Stanley D | Chromatographic multi-sample valving apparatus |
| JPS63163076A (en) * | 1986-12-26 | 1988-07-06 | Furonto Eng Kk | Valve |
| CN101617225A (en) * | 2007-02-22 | 2009-12-30 | 通用电气健康护理生物科学股份公司 | Selector valve |
| CN101680861A (en) * | 2007-05-15 | 2010-03-24 | 通用电气健康护理生物科学股份公司 | Flow divider valve |
| CN101896750A (en) * | 2008-02-14 | 2010-11-24 | 株式会社岛津制作所 | Flow channel switching valve |
| CN102209863A (en) * | 2008-11-13 | 2011-10-05 | 通用电气健康护理生物科学股份公司 | Random access rotary valve |
| CN102918309A (en) * | 2010-05-20 | 2013-02-06 | 生物辐射实验室股份有限公司 | Rotary column selector valve |
| CN203463692U (en) * | 2013-09-11 | 2014-03-05 | 青岛普仁仪器有限公司 | Valve and chromatograph |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP7472156B2 (en) | 2019-02-20 | 2024-04-22 | エフ ホフマン－ラ ロッシュ アクチェン ゲゼルシャフト | Valve for transferring at least one fluid |
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| Publication number | Publication date |
|---|---|
| CN103423483B (en) | 2015-08-26 |
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