CN204477386U - Post position valve - Google Patents
Post position valve Download PDFInfo
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- CN204477386U CN204477386U CN201520113263.3U CN201520113263U CN204477386U CN 204477386 U CN204477386 U CN 204477386U CN 201520113263 U CN201520113263 U CN 201520113263U CN 204477386 U CN204477386 U CN 204477386U
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- hole
- groove
- post position
- position valve
- rotor
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Abstract
The utility model discloses a kind of post position valve, post position valve is when the first working state, and the first hole is connected with the 3rd hole, and mobile phase directly enters detector without chromatographic column, thus realizes the function of Bypass; Post position valve is when the second working state, and the first hole is communicated with the 4th hole, and the second hole is communicated with the 3rd hole, and mobile phase can flow through chromatographic column from the top down and enter detector, thus realizes the function of DownFlow; Post position valve is when the 3rd working state, and the first hole is communicated with the second hole, and the 3rd hole is communicated with the 4th hole, and mobile phase can flow through chromatographic column from bottom to top and enter detector, thus realizes the function of UpFlow.The utility model post position valve switches the working state of post position valve by the rotation of rotor, make a valve achieve three kinds of difference in functionalitys, and functional.The different operating state of this post position valve switches can by the switching of software intelligence.
Description
Technical field
the utility model relates to a kind of post position valve.
Background technique
liquid chromatogram instrument is the difference utilizing mixture distribution ratio between liquid-solid or immiscible two kinds of liquid, is first separated, the instrument of then Analysis and Identification or preparation to mixture.When to analyze sample utilizing liquid chromatogram instrument or prepare, design path is needed to enable to realize following functions: 1.ByPass(is not when needing mobile phase to enter detector, and when maybe needing to rinse detector, mobile phase by-passing directly enters detector); 2. chromatographic column flows to the top of DownFlow(and infusion pump connection chromatographic column, and detector is connected, by the top Injection Detector of the mobile phase in chromatographic column by chromatographic column in the bottom of chromatographic column); 3. chromatographic column flows to the bottom of UpFlow(and infusion pump connection chromatographic column, and detector is connected, by the bottom Injection Detector of the mobile phase in chromatographic column by chromatographic column in the top of chromatographic column).And in prior art, then need to change different valves to realize above-mentioned difference in functionality, it is very inconvenient to operate.
Model utility content
in order to solve the problem, the purpose of this utility model is to provide a kind of post position valve, can realize above-mentioned difference in functionality by a valve.
in order to reach above object, the technical solution adopted in the utility model is: a kind of post position valve, it comprises stator, rotate with stator the rotor be connected, stator have the first hole be connected with infusion pump, the second hole be connected with one end of chromatographic column, the 3rd hole be connected with detector, the 4th hole that is connected with the other end of chromatographic column, the first hole, the second hole, the 3rd hole, the 4th hole equal angles and distributing successively equidistantly centered by the rotation axis of rotor; Rotor have the first groove and two the second grooves;
post position valve has at least three working staties, and when it is in the first working state, the first groove is connected with the 3rd hole with the first hole respectively; When post position valve is in the second working state, second groove is connected with the 4th hole with the first hole respectively, and another second groove is connected with the 3rd hole with the second hole respectively; When post position valve is in the 3rd working state, second groove is connected with the second hole with the first hole respectively, and another second groove is connected with the 4th hole with the 3rd hole respectively.
further, if the distance between the first hole and the second hole is L, distance between first hole and the rotation axis of rotor is R, and the length direction of the first groove is vertical and crossing with the rotation axis of rotor, and one end of the first groove and the distance between its other end and the rotation axis of rotor are R.Further, the first groove is lineal shape.
further, one end of each second groove and the distance between its other end and the rotation axis of rotor are R, and the distance between one end of the second groove and one end of the first groove is L, and the distance between the other end of the second groove and the other end of the first groove is also L.Further, the second groove is lineal shape.
further, two the second grooves lay respectively at the both sides of the first groove, and are symmetrical arranged about the length direction of the first groove.
further, the second hole is connected with the lower end of chromatographic column, and the 4th hole is connected with the upper end of chromatographic column.
further, the first hole, the second hole, the 3rd hole, the 4th hole are through hole.
owing to adopting technique scheme, the utility model post position valve is when the first working state, and the first hole is connected with the 3rd hole, and mobile phase directly enters detector without chromatographic column, thus realizes the function of Bypass; Post position valve is when the second working state, and the first hole is communicated with the 4th hole, and the second hole is communicated with the 3rd hole, and mobile phase can flow through chromatographic column from the top down and enter detector, thus realizes the function of DownFlow; Post position valve is when the 3rd working state, and the first hole is communicated with the second hole, and the 3rd hole is communicated with the 4th hole, and mobile phase can flow through chromatographic column from bottom to top and enter detector, thus realizes the function of UpFlow.
the utility model post position valve switches the working state of post position valve by the rotation of rotor, make a valve achieve three kinds of difference in functionalitys, and functional.The different operating state of this post position valve switches can by the switching of software intelligence.
Accompanying drawing explanation
accompanying drawing 1 is the structural representation of the stator of the utility model post position valve;
accompanying drawing 2 is the structural representation of another angle of the stator of the utility model post position valve;
accompanying drawing 3 is the structural representation of the rotor of the utility model post position valve;
accompanying drawing 4a is the utility model post position valve stream schematic diagram in the first operative state;
accompanying drawing 4b is the utility model post position valve rotor structural representation in the first operative state;
accompanying drawing 5a is the utility model post position valve stream schematic diagram in a second operative state;
accompanying drawing 5b is the utility model post position valve rotor structural representation in a second operative state;
accompanying drawing 6a is the stream schematic diagram of the utility model post position valve under the 3rd working state;
accompanying drawing 6b is the structural representation of the utility model post position valve rotor under the 3rd working state.
number in the figure is:
10, stator; 11, the first hole; 12, the second hole; 13, the 3rd hole; 14, the 4th hole
20, rotor; 21, the first groove; 22, the second groove;
30, chromatographic column.
Embodiment
below in conjunction with accompanying drawing, preferred embodiment of the present utility model is described in detail, to make advantage of the present utility model and feature can be easier to be readily appreciated by one skilled in the art, thus more explicit defining is made to protection domain of the present utility model.
as can be seen from the structural representation of accompanying drawing 1 to accompanying drawing 6b, present embodiments provide a kind of post position valve, it comprises stator 10, rotate with stator 10 rotor 20 be connected.
stator 10 has the first hole 11 be connected with infusion pump, the second hole 12 be connected with one end of chromatographic column 30, the 3rd hole 13 be connected with detector, the 4th hole 12, hole 11, second, hole 14, first be connected with the other end of chromatographic column 30, the 3rd hole 13, the 4th hole 14 equal angles and distributing successively equidistantly centered by the rotation axis of rotor 20.In the present embodiment, the second hole 12 is connected with the lower end of chromatographic column 30, and the 4th hole 14 is connected with the upper end of chromatographic column 30.First hole 12, hole 11, second, the 3rd hole 13, the 4th hole 14 are through hole.
rotor 20 have the first groove 21 and two the second grooves 22.Two the second grooves 22 lay respectively at the both sides of the first groove 21, and are symmetrical arranged about the length direction of the first groove 21.If the distance between the first hole 11 and the second hole 12 is L, distance between first hole 11 and the rotation axis of rotor 20 is R, the length direction of the first groove 21 is vertical and crossing with the rotation axis of rotor 20, and the distance between one end of the first groove 21 and the rotation axis of its other end and rotor 20 is R.First groove 21 is lineal shape.Distance between one end of each second groove 22 and the rotation axis of its other end and rotor 20 is R, and the distance between one end of the second groove 22 and one end of the first groove 21 is L, and the distance between the other end of the second groove 22 and the other end of the first groove 21 is also L.Second groove 22 is lineal shape.
post position valve has at least three working staties, when it is in the first working state, first groove 21 is connected with the 3rd hole 13 with the first hole 11 respectively, under this state, first hole 11 is connected with the 3rd hole 13, mobile phase directly enters detector without chromatographic column 30, thus realizes the function of Bypass, now also can rinse detector; When post position valve is in the second working state, second groove 22 is connected with the 4th hole 14 with the first hole 11 respectively, another second groove 22 is connected with the 3rd hole 13 with the second hole 12 respectively, under this state, first hole 11 is communicated with the 4th hole 14, second hole 12 is communicated with the 3rd hole 13, and mobile phase can flow through chromatographic column 30 from the top down and enter detector, thus realizes the function of DownFlow; When post position valve is in the 3rd working state, second groove 22 is connected with the second hole 12 with the first hole 11 respectively, another second groove 22 is connected with the 4th hole 14 with the 3rd hole 13 respectively, under this state, first hole 11 is communicated with the second hole 12,3rd hole 13 is communicated with the 4th hole 14, and mobile phase can flow through chromatographic column 30 from bottom to top and enter detector, thus realizes the function of UpFlow.
the utility model post position valve switches the working state of post position valve by the rotation of rotor 20, make a valve achieve above-mentioned three kinds of difference in functionalitys, and functional.The different operating state of this post position valve switches can by the switching of software intelligence.
above-described embodiment, only for technical conceive of the present utility model and feature are described, its object is to person skilled in the art can be understood content of the present utility model and implement according to this, can not limit protection domain of the present utility model with this.All equivalences done according to the utility model Spirit Essence change or modify, and all should be encompassed within protection domain of the present utility model.
Claims (8)
1. a post position valve, it comprises stator (10), to rotate the rotor (20) be connected with described stator (10), it is characterized in that: described stator (10) has the first hole (11) be connected with infusion pump, the second hole (12) be connected with one end of chromatographic column (30), the 3rd hole (13) be connected with detector, the 4th hole (14) be connected with the other end of chromatographic column (30), described the first hole (11), second hole (12), 3rd hole (13), 4th hole (14) equal angles and distributing successively equidistantly centered by the rotation axis of rotor (20), described rotor (20) have the first groove (21) and two the second grooves (22),
Described post position valve has at least three working staties, and when it is in the first working state, described the first groove (21) is connected with the 3rd hole (13) with the first hole (11) respectively; When post position valve is in the second working state, the second groove (22) described in is connected with the 4th hole (14) with the first hole (11) respectively, and the second groove (22) described in another is connected with the 3rd hole (13) with the second hole (12) respectively; When post position valve is in the 3rd working state, the second groove (22) described in is connected with the second hole (12) with the first hole (11) respectively, and the second groove (22) described in another is connected with the 4th hole (14) with the 3rd hole (13) respectively.
2. post position according to claim 1 valve, it is characterized in that: set distance between described first hole (11) and the second hole (12) as L, distance between described first hole (11) and the rotation axis of rotor (20) is R, the length direction of described the first groove (21) is vertical and crossing with the rotation axis of rotor (20), and the distance between the rotation axis of one end of the first groove (21) and its other end and rotor (20) is R.
3. post position according to claim 1 and 2 valve, is characterized in that: described the first groove (21) is lineal shape.
4. post position according to claim 2 valve, it is characterized in that: the one end of the second groove (22) described in each and the distance between the rotation axis of its other end and rotor (20) are R, distance between one end of second groove (22) and one end of the first groove (21) is L, and the distance between the other end of the second groove (22) and the other end of the first groove (21) is also L.
5. the post position valve according to claim 1 or 4, is characterized in that: described the second groove (22) is lineal shape.
6. the post position valve according to claim 1 or 4, is characterized in that: two described the second grooves (22) lay respectively at the both sides of the first groove (21), and are symmetrical arranged about the length direction of the first groove (21).
7. post position according to claim 1 valve, is characterized in that: described the second hole (12) is connected with the lower end of chromatographic column (30), and the 4th described hole (14) is connected with the upper end of chromatographic column (30).
8. post position according to claim 1 valve, is characterized in that: described the first hole (11), the second hole (12), the 3rd hole (13), the 4th hole (14) are through hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520113263.3U CN204477386U (en) | 2015-02-16 | 2015-02-16 | Post position valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520113263.3U CN204477386U (en) | 2015-02-16 | 2015-02-16 | Post position valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204477386U true CN204477386U (en) | 2015-07-15 |
Family
ID=53633178
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520113263.3U Active CN204477386U (en) | 2015-02-16 | 2015-02-16 | Post position valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204477386U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104633182A (en) * | 2015-02-16 | 2015-05-20 | 苏州赛谱仪器有限公司 | Column-position valve |
| CN110864139A (en) * | 2019-12-02 | 2020-03-06 | 北京华创精科生物技术有限公司 | Column position valve |
-
2015
- 2015-02-16 CN CN201520113263.3U patent/CN204477386U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104633182A (en) * | 2015-02-16 | 2015-05-20 | 苏州赛谱仪器有限公司 | Column-position valve |
| CN110864139A (en) * | 2019-12-02 | 2020-03-06 | 北京华创精科生物技术有限公司 | Column position valve |
| CN110864139B (en) * | 2019-12-02 | 2021-10-26 | 北京华创精科生物技术有限公司 | Column position valve |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |