CN103423484A - Valve and chromatographic instrument - Google Patents
Valve and chromatographic instrument Download PDFInfo
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- CN103423484A CN103423484A CN201310411412XA CN201310411412A CN103423484A CN 103423484 A CN103423484 A CN 103423484A CN 201310411412X A CN201310411412X A CN 201310411412XA CN 201310411412 A CN201310411412 A CN 201310411412A CN 103423484 A CN103423484 A CN 103423484A
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Abstract
The invention provides a valve and a chromatographic instrument. The valve comprises a stator and a rotor. A first connecting hole is formed in the center of the stator, a plurality of second connecting holes are formed in the stator around the center of the stator, and a third connecting hole is further formed in the stator. A first groove is formed in the center of the rotor, an arc-shaped groove, a second groove and a third groove are formed in the rotor around the center of the rotor, the second groove is communicated with the first groove through a first connecting groove formed in the rotor to form a first trench, and the third groove is communicated with the arc-shaped groove through the second connecting groove formed in the rotor to form a second trench. The rotor is attached to the stator, the first groove is communicated with the first connecting hole, the second groove and the third groove are communicated with the corresponding second connecting holes, and the arc-shaped groove is communicated with the third connecting hole. By the means that the arc-shaped groove is formed in the rotor, the first trench and the second trench are communicated with the corresponding second connecting holes respectively, 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 the center of described stator is provided with the first attachment hole, and described stator Shang Raoqi center is provided with a plurality of the second attachment holes, also is provided with the 3rd attachment hole on described stator; The center of described rotor is provided with the first groove, described rotor Rao Qi center is provided with arc-shaped slot, the second groove and the 3rd groove, described the second groove is communicated with described the first groove and forms the first groove by the first connecting groove arranged on described rotor, and described the 3rd groove is communicated with described arc-shaped slot and forms the second groove by the second connecting groove arranged on described rotor; Described rotor is attached on described stator, and described the first groove is communicated with described the first attachment hole, and described the second groove and described the 3rd groove are communicated with corresponding described the second attachment hole, and described arc-shaped slot is communicated with described the 3rd 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, a plurality of described the second attachment holes are divided into a plurality of the second attachment holes one and a plurality of the second attachment hole two, the center of circle of a plurality of described the second attachment holes one is distributed in take the center of described stator on the circular trace that center of circle radius is r1, the center of circle of a plurality of described the second attachment holes two is distributed in take the center of described stator on the circular trace that center of circle radius is r2, described the second groove is communicated with corresponding described the second attachment hole one, and described the 3rd groove is communicated with corresponding described the second attachment hole two; Wherein, r1 is not equal to r2.
Further, be provided with the auxiliary circle curve bath be communicated with described the 3rd attachment hole on described stator, the radius of described auxiliary circle curve bath is identical with the radius of described arc-shaped slot, and described arc-shaped slot is communicated with described the 3rd 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 described arc-shaped slot.
Further, described the first groove, described the first connecting groove and described the second groove are an integral channel structure, and described arc-shaped slot, described the second connecting groove and described the 3rd groove are an integral channel structure.
Further, on described stator, be provided with boss structure, described the first attachment hole, described the second attachment hole and described the 3rd 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, the center of described valve head is provided with the first external tapping, described valve head Shang Raoqi center is provided with a plurality of the second external tappings, also be provided with the 3rd external tapping on described valve head, described the first external tapping is communicated with described the first attachment hole, described the second external tapping is communicated with corresponding described the second attachment hole, described the 3rd external tapping is communicated with corresponding described the 3rd 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.
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 the first groove and the second groove are 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;
The assembling schematic diagram three that Figure 10 is stator and rotor in valve embodiment of the present invention;
The structural representation three that Figure 11 is stator in valve embodiment of the present invention;
The structural representation three that Figure 12 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, and the center of stator 1 is provided with the first attachment hole 11, and stator 1 Shang Raoqi center is provided with a plurality of the second attachment holes 12, also is provided with the 3rd attachment hole 13 on stator 1; The center of rotor 2 is provided with the first groove 21, rotor 2 Rao Qi centers are provided with arc-shaped slot 22, the second groove 23 and the 3rd groove 24, the second groove 23 is communicated with formation the first groove 201, the three grooves 24 by the first connecting groove 25 arranged on rotor 2 and is communicated with arc-shaped slot 22 and forms the second groove 202 by the second connecting groove 26 arranged on rotor 2 with the first groove 21; Rotor 2 is attached on stator 1, and the first groove 21 is communicated with the first attachment hole 11, and the second groove 23 and the 3rd groove 24 are communicated with the second corresponding attachment hole 12, and arc-shaped slot 22 is communicated with the 3rd attachment hole 13.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.The first groove 201 and the second groove 202 will be followed rotor 2 and together be rotated, and the first groove 201 and the second groove 202 will be communicated with the second corresponding attachment hole 12.Wherein, formed the first groove 201 of the first groove 21, the first connecting groove 25 and the second groove 23 is an integral channel structure, and formed the second groove 202 of arc-shaped slot 22, the second connecting groove 26 and the 3rd groove 24 is an integral channel structure.Rotor 2 is in rotation process, and the first groove 21 in the first groove 201 will be communicated with the first attachment hole 11 all the time, thereby guarantees that the first attachment hole 11 can be communicated with second attachment hole 12 at diverse location place by the first groove 201; Meanwhile, arc-shaped slot 22 in the second groove 202 can be communicated with the 3rd attachment hole 13 all the time, thereby guarantee that the 3rd attachment hole 13 can be communicated with second attachment hole 12 at diverse location place by the second groove 202, 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, realize having 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 10 the second attachment holes 12, on the stator 1 in accompanying drawing 5, can be connected with five quantity tubes, thereby realize five 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, a plurality of the second attachment holes are divided into a plurality of the second attachment holes 1 and a plurality of the second attachment hole 2 122, the center of circle of a plurality of the second attachment holes 1 is distributed in take the center of stator 1 on the circular trace that center of circle radius is r1, the center of circle of a plurality of the second attachment holes 2 122 is distributed in take the center of stator 1 on the circular trace that center of circle radius is r2, the second groove 23 is communicated with the second corresponding attachment hole 1, and the 3rd groove 24 is communicated with the second corresponding attachment hole 2 122; Wherein, r1 is not equal to r2.Concrete, the second attachment hole 1 and the second attachment hole 2 122 are distributed in respectively take on the different circular traces that the center of stator 1 is the center of circle, corresponding, after rotor 2 fits on stator 1, the second groove 23 is distributed on the same circular trace with the second attachment hole one 121 places, and the 3rd groove 24 is distributed on the same circular trace with the second attachment hole 2 122 places, in rotor 2 rotation processes, the second groove 23 and the 3rd groove 24 are communicated with correspondence with the second attachment hole 1 and the second attachment hole 2 122.In addition, as Figure 4-Figure 6, the second groove 23 and the 3rd groove 24 can be acute angle with the line angle at rotor 2 centers, or, as shown in Fig. 7-Fig. 9, the second groove 23 and the 3rd groove 24 can be the straight angle with the line angle at rotor 2 centers.
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, the second attachment hole 12 and the 3rd attachment hole 13 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 diameter of the first attachment hole 11, the second attachment hole 12 and the 3rd attachment hole 13 in the present embodiment can be 0.1mm ~ 1.5mm, the groove width of the first groove 201 and the second groove 202 can be 0.1mm ~ 1.5mm, and the groove depth of the first groove 201 and the second groove 202 can be 0.1mm ~ 1.5mm.
Further, also be fixedly connected with valve head 3 on stator 1, the center of valve head 3 is provided with the first external tapping (not shown), valve head 3 Shang Raoqi centers are provided with a plurality of the second external tappings 31, also be provided with the 3rd external tapping (not shown) on valve head 3, the first external tapping is communicated with the first attachment hole 11, the second external tapping 31 is communicated with the second corresponding attachment hole 12, the 3rd external tapping is communicated with the 3rd corresponding attachment hole 13, a plurality of the second external tappings 31 are the divergent shape setting or a plurality of the second external tapping 31 is distributed on the circumferential side wall of valve head 3 along internal surface to the outer surface direction of valve head 3.Concrete, the first external tapping can be the straight hole along valve head 3 axial directions, and 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 Figure 10-12, for fear of the remaining liquid of the tail end that arc-shaped slot 22 occurs, be provided with the auxiliary circle curve bath 131 be communicated with the 3rd attachment hole 13 on stator 1, the radius of auxiliary circle curve bath 131 is identical with the radius of arc-shaped slot 22, and arc-shaped slot 22 is communicated with the 3rd attachment hole 13 by auxiliary circle curve bath 131.Concrete, after rotor 2 is fitted on stator 1, the tail end of arc-shaped slot 22 will overlap with auxiliary circle curve bath 131, liquid in arc-shaped slot 22 will enter into the 3rd attachment hole 13 by auxiliary circle curve bath 131, due in rotor 2 rotation processes, the tail end of arc-shaped slot 22 will overlap with auxiliary circle curve bath 131 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 131 is not less than the arc length of 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 the first groove and the second groove are 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, the center of described stator is provided with the first attachment hole, and described stator Shang Raoqi center is provided with a plurality of the second attachment holes, also is provided with the 3rd attachment hole on described stator; The center of described rotor is provided with the first groove, described rotor Rao Qi center is provided with arc-shaped slot, the second groove and the 3rd groove, described the second groove is communicated with described the first groove and forms the first groove by the first connecting groove arranged on described rotor, and described the 3rd groove is communicated with described arc-shaped slot and forms the second groove by the second connecting groove arranged on described rotor; Described rotor is attached on described stator, and described the first groove is communicated with described the first attachment hole, and described the second groove and described the 3rd groove are communicated with corresponding described the second attachment hole, and described arc-shaped slot is communicated with described the 3rd 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, it is characterized in that, a plurality of described the second attachment holes are divided into a plurality of the second attachment holes one and a plurality of the second attachment hole two, the center of circle of a plurality of described the second attachment holes one is distributed in take the center of described stator on the circular trace that center of circle radius is r1, the center of circle of a plurality of described the second attachment holes two is distributed in take the center of described stator on the circular trace that center of circle radius is r2, described the second groove is communicated with corresponding described the second attachment hole one, and described the 3rd groove is communicated with corresponding described the second attachment hole two; Wherein, r1 is not equal to r2.
4. valve according to claim 1, it is characterized in that, be provided with the auxiliary circle curve bath be communicated with described the 3rd attachment hole on described stator, the radius of described auxiliary circle curve bath is identical with the radius of described arc-shaped slot, and described arc-shaped slot is communicated with described the 3rd 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 described arc-shaped slot.
6. valve according to claim 1, is characterized in that, described the first groove, described the first connecting groove and described the second groove are an integral channel structure, and described arc-shaped slot, described the second connecting groove and described the 3rd groove are an integral channel structure.
7. valve according to claim 1, it is characterized in that, be provided with boss structure on described stator, described the first attachment hole, described the second attachment hole and described the 3rd 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, the center of described valve head is provided with the first external tapping, described valve head Shang Raoqi center is provided with a plurality of the second external tappings, also be provided with the 3rd external tapping on described valve head, described the first external tapping is communicated with described the first attachment hole, described the second external tapping is communicated with corresponding described the second attachment hole, described the 3rd external tapping is communicated with corresponding described the 3rd 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 |
|---|---|---|---|
| CN201310411412.XA CN103423484B (en) | 2013-09-11 | 2013-09-11 | valve and chromatograph |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310411412.XA CN103423484B (en) | 2013-09-11 | 2013-09-11 | valve and chromatograph |
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| Publication Number | Publication Date |
|---|---|
| CN103423484A true CN103423484A (en) | 2013-12-04 |
| CN103423484B CN103423484B (en) | 2015-08-26 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201310411412.XA Active CN103423484B (en) | 2013-09-11 | 2013-09-11 | valve and chromatograph |
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Citations (7)
| 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 |
| WO2009101695A1 (en) * | 2008-02-14 | 2009-08-20 | Shimadzu Corporation | Flow channel switching 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 |
| 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 |
| CN203463722U (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 CN201310411412.XA patent/CN103423484B/en active Active
Patent Citations (7)
| 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 |
| WO2009101695A1 (en) * | 2008-02-14 | 2009-08-20 | Shimadzu Corporation | Flow channel switching 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 |
| CN203463722U (en) * | 2013-09-11 | 2014-03-05 | 青岛普仁仪器有限公司 | Valve and chromatograph |
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| CN103423484B (en) | 2015-08-26 |
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