CN102808971B - Fluid selector valve - Google Patents
Fluid selector valve Download PDFInfo
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- CN102808971B CN102808971B CN201210004061.6A CN201210004061A CN102808971B CN 102808971 B CN102808971 B CN 102808971B CN 201210004061 A CN201210004061 A CN 201210004061A CN 102808971 B CN102808971 B CN 102808971B
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Abstract
The invention discloses a fluid selector valve. The fluid selector valve comprises a stator and a rotor, which are coaxially arranged. A common hole is formed in a central axis of the fluid selector valve; group hole units are uniformly distributed around the common hole; each group hole unit consists of through holes which penetrate through a stator body; guide sleeves and key grooves, which are uniformly distributed along the central axis of the rotor in a radial shape, are formed on the rotor; and at least one through hole in each group hole unit can be communicated with the adjacent through holes in the group hole unit through the guide sleeves and the key grooves, or the through hole is communicated with the common hole, and the communication state of each group hole unit are the same under any time. The fluid selector valve has the advantages that each through hole in each group hole unit can be communicated with the two adjacent holes and can be communicated with the common hole; and the communication state of each group hole is the same, and when a common hole is communicated with a left hole, the common holes in other groups are communicated with the left holes, so by rotating the rotor for one time, the communication state of each group can be selected, and instrument control is facilitated.
Description
Technical field
The present invention relates to a kind of selector valve, relate in particular to a kind of fluid selector valve.
Background technique
Chemical analysis (as the analysis of additive in food) generally includes following steps: 1, extraction step: with solvent by target analytes stripping from sample; 2, purifying step: the interfering components of together stripping is removed; 3, with the target analytes in analytical instrument sample.Conventional purification method has column chromatography and SPE.Instrument or device that this step is used have two kinds of mode of operations: a kind of is sample to be processed one by one to (single), and another kind is that several samples are processed to (multi-channel mode) simultaneously.The selector valve forming with rotor and stator on the market mainly contains following two types, and as depicted in figs. 1 and 2, a kind of is multidigit selector valve, and another kind is two switching valves, has a groove on the rotor of multidigit selector valve.By the position of conversion rotor, can by the hole at center on stator and around any one hole is connected, cannot UNICOM between the hole around still.On the rotor of two switching valves, by circle distribution, have several grooves, position by conversion rotor, can connect the hole on stator the hole UNICOM that each hole can only be adjacent with both sides between two, these two kinds all cannot accomplish can with adjacent hole UNICOM, also can with the hole UNICOM at center.Most multichannel Sample handling instrument uses multidigit selector valve, and each passage at least needs a multidigit selector valve and 5-6 bar pipeline.Along with the increase of port number, the quantity of valve, pipeline and connecting head increases in proportion, causes cost to rise and difficulty is installed.Publication number is that the Japanese documentation (open day on July 24th, 1992) of flat 4-204156 is recorded a kind of test portion injection device, but this test portion injection device cannot be done and at any time allows on stator or rotor UNICOM's state of each group unit, hole all identical.
Summary of the invention
The object of the present invention is to provide a kind of fluid selector valve for Fluid Transport and distribution, when using this fluid selector valve to realize a plurality of sample in comparatively simple and economical mode, process, make through hole on stator both can with adjacent hole UNICOM, also can with the hole UNICOM at center, and each group unit, hole UNICOM's state all identical.
The present invention adopts following technological scheme to realize:
A kind of fluid selector valve, the stator and the rotor that comprise coaxial setting, on the medial axis of fluid selector valve, there is a common aperture, around this common aperture, be evenly distributed with group unit, hole, each group unit, hole is comprised of the through hole that connects stator body, on described rotor, have and along its medial axis, be radial equally distributed guide groove and keyway, guide groove and keyway can make other through hole UNICOMs adjacent at least one through hole in unit, hole of each group and this unit, group hole, or make this through hole and common aperture UNICOM, it is characterized in that, at any time UNICOM's state of each group unit, hole is all identical.
Further, described common aperture is positioned on stator, around this common aperture, be evenly distributed with four group unit, hole, each group unit, hole is comprised of three through holes, the length of rotor upper rail equates and is crosswise to be distributed on rotor with the distance of through hole on stator apart from the stator center of circle, on rotor, the quantity of keyway is identical with stator top group hole element number, the length of keyway is identical with the distance between two adjacent through-holes in each group unit, hole, the distance in the unit, group hole that on rotor, adjacent guide groove and the distance between keyway equal stator between two adjacent through-holes.
Further, described guide groove is the undercut being buried in rotor body, and guide groove two ends have the hole with extraneous UNICOM.
Further, described stator is one to have the cylindrical body of hollow cavity, on stator body, relative position distribution has four group unit, hole, each group unit, hole is comprised of three through holes, distance in group unit, hole between adjacent through-holes is more than or equal to the length of rotor keyway, groove in rotor is vertically intersected on the radially medial axis of rotor and outwards extends in parallel and outside UNICOM, and described common aperture is for to set out along the passage of rotor radial medial axis and outside UNICOM from the crosspoint of groove.
Further, described rotor is the diminishing frustoconic shape of vertical cross-section, the inner chamber of described stator and the shape of rotor match, radially medial axis around stator is distributed with four group unit, hole, each group unit, hole is comprised of three through holes, distance in unit, described group of hole between adjacent through-holes is more than or equal to the length of rotor keyway, groove in rotor is vertically intersected on the radially medial axis of rotor and outwards extends in parallel and outside UNICOM, and described common aperture is for to set out along the passage of rotor radial medial axis and outside UNICOM from the crosspoint of groove.
Compared with prior art, each group of fluid selector valve of the present invention have at least in unit, hole a hole both can with adjacent Liang Ge hole UNICOM, again can with common aperture UNICOM.And UNICOM's state of respectively organizing hole is all identical, when a common aperture is the hole UNICOM with the left side, in other each group, common aperture is also the hole UNICOM with their left sides.Rotor, as long as rotate the UNICOM's state that once just can select each group simultaneously, is convenient to instrument and is controlled like this.
Accompanying drawing explanation
Fig. 1 is the structural representation of prior art multidigit selector valve.
Fig. 2 is the structural representation of two switching valves of prior art.
Fig. 3 is the structural representation of stator in first embodiment of the invention.
Fig. 4 is the structure perspective view of the rotor that matches with stator shown in Fig. 3.
Fig. 5 is the perspective diagram after through hole overlaps with keyway.
Fig. 6 is that through hole and the keyway of Fig. 5 rotates the perspective view after an angle.
Fig. 7 is that fluid selector valve of the present invention is applied to the workflow schematic diagram (state 1) in four-way SPE instrument.
Fig. 8 is that fluid selector valve of the present invention is applied to the workflow schematic diagram (state 2) in four-way SPE instrument.
Fig. 9 is that fluid selector valve of the present invention is applied to the workflow schematic diagram (state 3) in four-way SPE instrument.
Figure 10 is the structural representation of stator in second embodiment of the invention.
Figure 11 is the structure perspective view of the rotor that matches with stator shown in Figure 10.
Figure 12 is the structural representation of stator in third embodiment of the invention of the present invention.
Figure 13 is the structure perspective view of the rotor that matches with stator shown in Figure 12.
Embodiment
By the description to embodiment below; to more contribute to public understanding the present invention; but the given specific embodiment of claimant can't be considered as to the restriction to technical solution of the present invention, any definition to parts or technical characteristics change and/or to overall structure do form and immaterial conversion all should be considered as the protection domain that technological scheme of the present invention limits.
First embodiment of the invention as shown in Figures 3 to 6, the center of stator 1 has the common aperture 10 of its body of perforation, around common aperture 10, be evenly distributed with four group unit, hole, each group unit, hole connects stator 1 body by three and the through hole parallel with common aperture 10 forms, as through hole 11, through hole 12 and through hole 13 form a group unit, hole, through hole 14, through hole 15, through hole 16 form another group unit, hole, on rotor 2, have and be the guide groove 25 that crosswise distributes, this guide groove 25 can be that open channel can be also undercut.As shown in Figure 2, the end 254 of guide groove 25 and the distance between the end 253 equal the distance between stator 1 through hole 11 and through hole 16, and through hole 11 and through hole 16 are all positioned on the same diameter on stator 1 surface.The surface of rotor 2 has four keyways: keyway 21, keyway 22, keyway 23, keyway 24, wherein, keyway 24 is apart from the nearest keyway of the end 254 of cross recess 25, and keyway 24, near the distance between the end 254, equals the distance between two adjacent through-holes in unit, arbitrary group of hole of stator.Four group four keyways of hole unit matching and the guide groove that is radial cross distribution make other through hole UNICOMs adjacent at least one through hole in each group unit, hole and this unit, group hole, or make this through hole and common aperture UNICOM.Like this will be as shown in Figure 5 and Figure 6 when rotor 2 relative stator 1 rotation, each common aperture of organizing unit, hole can reach three kinds of coupled condition: 1 and the through hole UNICOM on its left side; 2 and its right through hole UNICOM; 3 and common aperture UNICOM, at any time, UNICOM's state of each group unit, hole is all identical.
As shown in Figure 7 to 9, the fluid selector valve of the present embodiment is applied to four-way SPE instrument.By the rotation of valve, four pumps can pass to sample on decontaminating column separately simultaneously.Then drip washing solvent is pumped into decontaminating column.Drip washing solvent is by target component from decontaminating column wash-out, and the component of collection can supply instrument analysis.In state 1, respectively with four samples of four pumps are connected, simultaneously draw samples; In state 2, four pumps are connected with decontaminating column respectively, and sample or drip washing solvent are pumped into decontaminating column; In state 3, four pumps are connected with drip washing solvent respectively, extract drip washing solvent simultaneously.Most multichannel Sample handling tool count is used multidigit selector valve, and each passage at least needs a multidigit selector valve and 5-6 bar pipeline.Along with the increase of port number, the quantity of valve, pipeline and connecting head increases in proportion, causes cost to rise and difficulty is installed.And use fluid selector valve of the present invention, and only need 1-2 valve, increase a passage only need to increase by 3 holes and 3 connecting lines and not need to increase valve on valve, therefore the port number of instrument is more, advantage of the present invention is more obvious.
Second embodiment of the invention as shown in Figure 10 to Figure 11, stator 3 is for having the cylindrical body of hollow cavity, inner chamber 31 is for holding rotor 4, four group unit, hole are uniformly distributed at cylindrical side, and connect with inner chamber 31, the through hole that is arranged in one group along rotor radial medial axis is exactly a group unit, hole, as through hole 324, through hole 325 and through hole 326 form a group unit, hole, wherein through hole 324 is upper holes of this unit, group hole, through hole 325 is common aperture of this unit, group hole, and through hole 326 is lower holes of this unit, group hole.Through hole 321, through hole 322, through hole 323 form another group unit, hole, and wherein through hole 321 is upper holes of this unit, group hole, and through hole 322 is common aperture of this unit, group hole, and through hole 323 is lower holes of this unit, group hole.Rotor 4 is also cylindrical body, and the cavity 31 of its profile and stator 3 matches, and rotor 4 can rotate the effect that can keep again sealing in cavity like this.The side of rotor has keyway: keyway 421, keyway 422, keyway 423 and keyway 424, upper keyway is for each common aperture on UNICOM's stator 3 and their upper hole.On the length of keyway and stator, common aperture equates to the distance in its lower hole.The side of rotor also has lower keyway: keyway 431, keyway 432, keyway 433, keyway 434, and lower keyway is for each common aperture on UNICOM's stator and their lower hole, and on the length of upper keyway and stator, common aperture equates to the distance in its upper hole.Above-mentioned keyway can be engraved in surperficial open channel or open in inner undercut, the porose surface of leading to, the two ends of undercut.Group unit, hole position and the keyway position of rotor 4 match, in rotor 4, have groove: groove 441, groove 442, groove 443 and groove 444, groove stretches out with outside UNICOM and is vertically intersected on the radially medial axis of rotor from the radially medial axis of rotor 4, from the crosspoint of four grooves, set out and along rotor radial medial axis, have the passage 451 with outside UNICOM downwards, passage 451 forms total common aperture of Liao Keyuge through hole UNICOM, and the effect of groove is on stator 3, respectively to organize the total common aperture UNICOM of the common aperture of unit, hole and valve.
Third embodiment of the invention as shown in Figure 12 and Figure 13, with front two embodiment's differences be in the present embodiment, stator 5 is for having the cylindrical body of round table-like hollow cavity, and rotor 6 matches with the hollow cavity of stator 5, can be contained in stator 5 and can in cavity, rotate the effect that can keep again sealing.Four group unit, hole are crosswise and are evenly distributed in stator 5 and with inner chamber 51 and connect.With first and second embodiment's group hole unit class seemingly, the through hole that is arranged in one group along rotor radial medial axis is exactly a group unit, hole, as through hole 524, through hole 525 and through hole 526 form a group unit, hole, wherein through hole 524 is upper holes of this unit, group hole, through hole 525 is common aperture of this unit, group hole, and through hole 526 is lower holes of this unit, group hole.Through hole 521, through hole 522, through hole 523 form another group unit, hole, and wherein through hole 521 is upper holes of this unit, group hole, and through hole 522 is common aperture of this unit, group hole, and through hole 523 is lower holes of this unit, group hole.On rotor 6, have lower keyway: keyway 621, keyway 622, keyway 623 and keyway 624, lower keyway is for each common aperture on UNICOM's stator 5 and their lower hole.On the length of lower guide channel and stator, common aperture equates to the distance in its lower hole.The prism of rotor is driven upper rail 631, guide groove 632, guide groove 633 and guide groove 634, and guide groove is for each common aperture on UNICOM's stator and their upper hole.On the length of upper rail and stator 5, common aperture equates to the distance in its upper hole.Above-mentioned keyway can be engraved in surperficial open channel or open in inner undercut, the porose surface of leading to, the two ends of undercut.On rotor, have and take rotor axis and connect groove 641, groove 642, groove 643 and the groove 644 of rotor body as starting point.Groove stretches out with outside UNICOM and is vertically intersected on this radially medial axis from rotor radial medial axis, from the crosspoint of groove, set out and have passage along rotor radial medial axis, total common aperture 651 and outside UNICOM, for will respectively organizing the total common aperture UNICOM of the common aperture of unit, hole and valve on stator.
Certainly; the present invention can also have other various embodiments; in the situation that not deviating from spirit of the present invention and essence thereof; those of ordinary skill in the art can make according to the present invention various corresponding changes and distortion, but these corresponding changes and distortion all should belong to the protection domain of the appended claim of the present invention.
Claims (5)
1. a fluid selector valve, the stator and the rotor that comprise coaxial setting, on the medial axis of fluid selector valve, there is a common aperture, around this common aperture, be evenly distributed with group unit, hole, each group unit, hole is comprised of the through hole that connects stator body, on described rotor, have and along its medial axis, be radial equally distributed guide groove and keyway, guide groove and keyway can make other through hole UNICOMs adjacent at least one through hole in unit, hole of each group and this unit, group hole, or make this through hole and common aperture UNICOM, it is characterized in that, at any time UNICOM's state of each group unit, hole is all identical.
2. fluid selector valve according to claim 1, it is characterized in that, described common aperture is positioned on stator, around this common aperture, be evenly distributed with four group unit, hole, each group unit, hole is comprised of three through holes, the length of rotor upper rail equates and is crosswise to be distributed on rotor with the distance of through hole on stator apart from the stator center of circle, on rotor, the quantity of keyway is identical with stator top group hole element number, the length of keyway is identical with the distance between two adjacent through-holes in each group unit, hole, distance in the unit, group hole that on rotor, adjacent guide groove and the distance between keyway equal stator between two adjacent through-holes.
3. fluid selector valve according to claim 2, is characterized in that, described guide groove is the undercut being buried in rotor body, and guide groove two ends have the hole with extraneous UNICOM.
4. fluid selector valve according to claim 1, it is characterized in that, described stator is one to have the cylindrical body of hollow cavity, on stator body, relative position distribution has four group unit, hole, each group unit, hole is comprised of three through holes, distance in group unit, hole between adjacent through-holes equals the length of rotor keyway, groove in rotor is vertically intersected on the radially medial axis of rotor and outwards extends in parallel and outside UNICOM, and described common aperture is for to set out along the passage of rotor radial medial axis and outside UNICOM from the crosspoint of groove.
5. fluid selector valve according to claim 1, it is characterized in that, described rotor is the diminishing frustoconic shape of vertical cross-section, the inner chamber of described stator and the shape of rotor match, radially medial axis around stator is distributed with four group unit, hole, each group unit, hole is comprised of three through holes, distance in unit, described group of hole between adjacent through-holes equals the length of rotor keyway, groove in rotor is vertically intersected on the radially medial axis of rotor and outwards extends in parallel and outside UNICOM, described common aperture is for to set out along the passage of rotor radial medial axis and outside UNICOM from the crosspoint of groove.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210004061.6A CN102808971B (en) | 2012-01-09 | 2012-01-09 | Fluid selector valve |
| US13/713,996 US8813785B2 (en) | 2012-01-09 | 2012-12-13 | Fluid selection valve |
| EP20120199339 EP2613157A3 (en) | 2012-01-09 | 2012-12-24 | Fluid selection valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210004061.6A CN102808971B (en) | 2012-01-09 | 2012-01-09 | Fluid selector valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102808971A CN102808971A (en) | 2012-12-05 |
| CN102808971B true CN102808971B (en) | 2014-09-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210004061.6A Active CN102808971B (en) | 2012-01-09 | 2012-01-09 | Fluid selector valve |
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| Country | Link |
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| CN (1) | CN102808971B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2990791B1 (en) | 2013-04-22 | 2018-03-21 | Sekisui Medical Co., Ltd. | Switching valve for a flow-type analysis device |
| CN110686930A (en) * | 2018-07-05 | 2020-01-14 | 江苏星亚迪环境科技有限公司 | Automatic storage tank sampling system with multifunctional tunnel valve and sampling method |
| CN114317703A (en) * | 2020-09-29 | 2022-04-12 | 深圳市真迈生物科技有限公司 | Nucleic acid sequence determination method, system, storage medium, and computer program product |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101675329A (en) * | 2007-09-28 | 2010-03-17 | 株式会社岛津制作所 | Sample introduction device |
| CN201764010U (en) * | 2010-04-14 | 2011-03-16 | 大连思谱精工有限公司 | High-pressure multi-position 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 |
| CN202580124U (en) * | 2012-01-09 | 2012-12-05 | 加拿大博朗科技有限公司 | Fluid selector valve |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04204156A (en) * | 1990-11-30 | 1992-07-24 | Yokogawa Electric Corp | Sample injecting apparatus |
| DE202008018599U1 (en) * | 2007-02-22 | 2016-05-13 | Ge Healthcare Bio-Sciences Ab | Rotatable selection valve |
| EP2196801B1 (en) * | 2008-12-11 | 2017-08-23 | Spark Holland B.V. | Method and apparatus for injecting a liquid sample in an HPLC analyzing device, and valve assembly for use therein. |
-
2012
- 2012-01-09 CN CN201210004061.6A patent/CN102808971B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101675329A (en) * | 2007-09-28 | 2010-03-17 | 株式会社岛津制作所 | Sample introduction device |
| 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 |
| CN201764010U (en) * | 2010-04-14 | 2011-03-16 | 大连思谱精工有限公司 | High-pressure multi-position switching valve |
| CN202580124U (en) * | 2012-01-09 | 2012-12-05 | 加拿大博朗科技有限公司 | Fluid selector valve |
Non-Patent Citations (1)
| Title |
|---|
| JP平4-204156A 1992.07.24 |
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| CN102808971A (en) | 2012-12-05 |
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