CN110864138A - Switching valve - Google Patents
Switching valve Download PDFInfo
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- CN110864138A CN110864138A CN201911171219.7A CN201911171219A CN110864138A CN 110864138 A CN110864138 A CN 110864138A CN 201911171219 A CN201911171219 A CN 201911171219A CN 110864138 A CN110864138 A CN 110864138A
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- guide groove
- stator
- back pressure
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K11/00—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves
- F16K11/02—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit
- F16K11/06—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only sliding valves, i.e. sliding closure elements
- F16K11/072—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only sliding valves, i.e. sliding closure elements with pivoted closure members
- F16K11/074—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only sliding valves, i.e. sliding closure elements with pivoted closure members with flat sealing faces
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- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Multiple-Way Valves (AREA)
Abstract
The invention discloses a switching valve, which comprises a stator and a rotor, wherein the stator is rotationally connected with the rotor, the stator is provided with a plurality of interfaces, at least two interfaces in the plurality of interfaces are respectively connected with a cavity of a pH probe, and at least two interfaces in the plurality of interfaces are respectively connected with a back pressure valve; the rotor is provided with a plurality of guide grooves, and at least one guide groove in the guide grooves is connected with at least two interfaces in the plurality of interfaces. The switching valve is connected with the chambers of the backpressure valve and the pH probe, the guide groove is connected with different interfaces on the stator by rotating the rotor to different angles so as to achieve the specific communication purpose, the pH probe and the backpressure valve can be communicated, bypassed and cleaned at will, and the pH probe is added with protective liquid, so that the disassembly and assembly of the pH probe and the backpressure valve pipeline are avoided, and the working efficiency is improved.
Description
Technical Field
The invention relates to the technical field of structures, in particular to a switching valve.
Background
The liquid phase chromatographic instrument is one instrument for separating and analyzing mixture in liquid-solid or immiscible liquid. In the course of separation preparation using a liquid chromatography instrument, pH detection is a frequently used function. The pH probe has the restriction of life, and when need not use the pH probe, the staff need be dismantled the pH probe from the instrument and wash to put the pH probe in the protection liquid and preserve. Generally, the processes of assembling, disassembling and storing the pH probe are complicated, and inconvenience is brought to the operation of instruments and equipment. Similarly, the back pressure valve also is the common components and parts in the separation preparation process, and when need not use the back pressure valve, the staff need tear the connecting line of back pressure valve open, washs the back pressure valve, and the dismouting of back pressure valve pipeline also can influence work efficiency, leads to complex operation, inefficiency.
Disclosure of Invention
The invention provides a switching valve, which aims to overcome the defects that in the prior art, a pH probe and a back pressure valve are disassembled and assembled and the pH probe is relatively complicated in a storage process.
The invention provides a switching valve which comprises a stator and a rotor, wherein the stator is rotationally connected with the rotor, the stator is provided with a plurality of interfaces, at least two interfaces in the plurality of interfaces are respectively connected with a cavity of a pH probe, and at least two interfaces in the plurality of interfaces are respectively connected with a back pressure valve; the rotor is provided with a plurality of guide grooves, and at least one guide groove in the guide grooves is connected with at least two interfaces in the plurality of interfaces.
Optionally, the stator has an inlet port 1 and an outlet port 3, and the rotor has a first flow guiding groove C1; when the stator and the rotor are in the first positional relationship, the inlet port 1 is connected to the outlet port 3 through the first guiding groove C1.
Alternatively, the stator has a receiving port 1, a receiving port 3, a receiving backpressure valve inlet 5 and a receiving backpressure valve outlet 2, the rotor has a first guide groove C1 and a fourth guide groove C4, and the receiving backpressure valve inlet 5 and the receiving backpressure valve outlet 2 are respectively connected with the backpressure valve; when the stator and the rotor are in a second positional relationship, the inlet port 1 is connected to the back pressure valve inlet port 5 through the first guide groove C1, and the back pressure valve outlet port 2 is connected to the outlet port 3 through the fourth guide groove C4.
Optionally, the stator has a receiving port 1, a receiving port 3, a receiving backpressure valve inlet 5, a receiving backpressure valve outlet 2, a first pH interface 7 and a second pH interface 8, the rotor has a first guiding gutter C1, a second guiding gutter C4 and a third guiding gutter C3, the receiving backpressure valve inlet 5 and the receiving backpressure valve outlet 2 are respectively connected with the backpressure valve, and the first pH interface 7 and the second pH interface 8 are respectively connected with the chamber of the pH probe; when the stator and the rotor are in a third positional relationship, the inlet 1 is connected to the back pressure valve inlet 5 through the first guide groove C1, the back pressure valve outlet 2 is connected to the second pH interface 8 through the fourth guide groove C4, and the first pH interface 7 is connected to the outlet 3 through the third guide groove C3.
Optionally, the stator has an inlet port 1, an outlet port 3, a first pH interface 7 and a second pH interface 8, the rotor has a first guiding groove C1 and a third guiding groove C3, and the first pH interface 7 and the second pH interface 8 are respectively connected with the chamber of the pH probe; when the stator and the rotor are in a fourth positional relationship, the inlet port 1 is connected to the second pH port 8 through the first guide groove C1, and the first pH port 7 is connected to the outlet port 3 through the third guide groove C3.
Optionally, the stator has a sample pin hole 4, a waste liquid hole 6, a first pH interface 7 and a second pH interface 8, the rotor has a second guiding groove C2 and a third guiding groove C3, and the first pH interface 7 and the second pH interface 8 are respectively connected with the chamber of the pH probe; when the stator and the rotor are in a fifth positional relationship, the sample pin hole 4 is connected to the second pH port 8 through the third guide groove C3, and the first pH port 7 is connected to the waste liquid port 6 through the second guide groove C2.
Optionally, the first guiding gutter C1 includes a first section and a second section, the first section is a linear structure, the second section is an arc structure, and the first section is connected with the second section.
Optionally, the second guiding channel C2 is an arc-shaped structure.
Optionally, the third guiding groove C3 is an arc-line structure.
Optionally, the fourth guiding groove C4 is an arc-line structure.
Optionally, the rotor has a first guiding groove C1, a second guiding groove C2, and a fourth guiding groove C4, one end of a first section of the first guiding groove C1 is a rotation center of the rotor, and a second section of the first guiding groove C1, the second guiding groove C2, and the fourth guiding groove C4 are distributed on the same circumference.
The switching valve is connected with the chambers of the backpressure valve and the pH probe, the guide groove is connected with different interfaces on the stator by rotating the rotor to different angles so as to achieve the specific communication purpose, the pH probe and the backpressure valve can be communicated, bypassed and cleaned at will, and the pH probe is added with protective liquid, so that the disassembly and assembly of the pH probe and the backpressure valve pipeline are avoided, and the working efficiency is improved.
Drawings
Fig. 1 is a schematic structural diagram of a stator of a switching valve in an embodiment of the present invention;
fig. 2 is a schematic structural view of a rotor of the switching valve in the embodiment of the present invention;
fig. 3 is a schematic shape view of a rotor and a stator of the switching valve after combination in the embodiment of the present invention;
FIG. 4 is a schematic diagram of a connection relationship of the switching valve according to the embodiment of the present invention;
FIG. 5 is a schematic diagram of a connection relationship of the switching valve according to the embodiment of the present invention;
FIG. 6 is a schematic diagram of a connection relationship of the switching valve according to the embodiment of the present invention;
FIG. 7 is a schematic diagram of a connection relationship of the switching valve according to the embodiment of the present invention;
fig. 8 is a schematic connection diagram of the switching valve according to the embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The embodiment of the invention provides a switching valve, which comprises a stator and a rotor, wherein the stator is rotationally connected with the rotor, the stator is provided with a plurality of interfaces, at least two interfaces in the plurality of interfaces are respectively connected with a cavity of a pH probe, and at least two interfaces in the plurality of interfaces are respectively connected with a back pressure valve; the rotor is provided with a plurality of guide grooves, and at least one guide groove in the guide grooves is connected with at least two interfaces in the plurality of interfaces.
The switching valve in the embodiment of the invention is simultaneously connected with the chambers of the back pressure valve and the pH probe, the diversion trench is connected with different interfaces on the stator by rotating the rotor to different angles so as to achieve the specific communication purpose, and the switching valve can be used for arbitrarily communicating, bypassing and cleaning the pH probe and the back pressure valve and adding protective liquid to the pH probe, thereby avoiding the disassembly and assembly of the pH probe and the back pressure valve pipeline and improving the working efficiency.
As shown in fig. 1, which is a schematic structural diagram of a stator of a switching valve in an embodiment of the present invention, the stator has 8 interfaces with unchanged positions, that is, an inlet 1, an outlet 2, an outlet 3, a sample pinhole 4, an inlet 5, a waste liquid port 6, a first pH interface 7, and a second pH interface 8, where the first pH interface 7 and the second pH interface 8 are inlets and outlets.
As shown in fig. 2, which is a schematic structural diagram of a rotor of a switching valve in an embodiment of the present invention, the rotor has 4 guide grooves, i.e., a first guide groove C1, a second guide groove C2, a third guide groove C3, and a fourth guide groove C4. The first diversion trench C1 comprises a first section and a second section, wherein the first section is of a linear structure, the second section is of an arc-shaped structure, and the first section is connected with the second section; the second diversion trench C2 is of an arc-shaped structure; the third diversion trench C3 is of an arc-shaped structure; the fourth guiding groove C4 is an arc-shaped structure. One end of the first section of the first guide groove C1 is the rotation center of the rotor, and the second section of the first guide groove C1, the second guide groove C2 and the fourth guide groove C4 are distributed on the same circumference.
Based on the shape of the stator in fig. 1 and the shape of the rotor in fig. 2, the combined shape of the rotor and stator is shown in fig. 3, where the stator top thread interface is omitted.
As shown in fig. 4, which is a schematic view of a connection relationship of the switching valve in the embodiment of the present invention, the stator has an inlet port 1 and an outlet port 3, and the rotor has a first guiding groove C1; when the stator and the rotor are in the first positional relationship, the inlet port 1 is connected to the outlet port 3 through the first guiding groove C1.
Based on the above connection relationship, when the solvent flows in from the inlet 1, the solvent flows out from the outlet 3 through the first guiding groove C1, that is, the solvent does not pass through the PH probe, and does not enter the back pressure valve.
As shown in fig. 5, which is a schematic view of a connection relationship of the switching valve in the embodiment of the present invention, the stator has an inlet 1, an outlet 3, an inlet 5 of the back pressure valve and an outlet 2 of the back pressure valve, the rotor has a first guiding groove C1 and a fourth guiding groove C4, and the inlet 5 of the back pressure valve and the outlet 2 of the back pressure valve are respectively connected to the back pressure valve; when the stator and the rotor are in the second position relation, the inlet 1 is connected with the inlet 5 of the back pressure valve through the first guide groove C1, and the outlet 2 of the back pressure valve is connected with the outlet 3 through the fourth guide groove C4.
Based on the connection relation, when the solvent flows in from the inlet 1, the solvent flows out from the inlet 5 of the back pressure valve through the first diversion trench C1, and the solvent reaches the outlet 2 of the back pressure valve through the back pressure valve due to the fact that the back pressure valve is connected between the inlet 5 of the back pressure valve and the outlet 2 of the back pressure valve, then passes through the fourth diversion trench C4 and flows out from the outlet 3, and therefore the solvent only passes through the back pressure valve and does not pass through the pH probe.
As shown in fig. 6, which is a schematic diagram of a connection relationship of the switching valve in the embodiment of the present invention, the stator has an inlet 1, an outlet 3, an inlet 5, an outlet 2, a first pH interface 7, and a second pH interface 8, the rotor has a first guiding gutter C1, a fourth guiding gutter C4, and a third guiding gutter C3, the inlet 5 and the outlet 2 are respectively connected to the backpressure valve, and the first pH interface 7 and the second pH interface 8 are respectively connected to a chamber of the pH probe; when the stator and the rotor are in a third position relation, the inlet 1 is connected with the inlet 5 of the back pressure valve through the first diversion groove C1, the outlet 2 of the back pressure valve is connected with the second pH interface 8 through the fourth diversion groove C4, and the first pH interface 7 is connected with the outlet 3 through the third diversion groove C3.
Based on the connection relation, when the solvent flows in from the inlet 1, the solvent flows out from the inlet 5 of the backpressure valve through the first diversion trench C1, and due to the fact that the backpressure valve is connected between the inlet 5 of the backpressure valve and the outlet 2 of the backpressure valve, the solvent reaches the outlet 2 of the backpressure valve through the backpressure valve, then reaches the second PH interface 8 through the fourth diversion trench C4, flows out from the first PH interface 7 through the cavity of the PH probe, and flows out from the outlet 3 through the third diversion trench C3, and therefore the solvent flows through the PH probe and the backpressure valve.
As shown in fig. 7, which is a schematic connection diagram of the switching valve in the embodiment of the present invention, the stator has a connection port 1, a connection port 3, a first pH interface 7, and a second pH interface 8, the rotor has a first guiding groove C1 and a third guiding groove C3, and the first pH interface 7 and the second pH interface 8 are respectively connected to the chambers of the pH probes; when the stator and the rotor are in the fourth positional relationship, the inlet port 1 is connected with the second pH port 8 through the first guide groove C1, and the first pH port 7 is connected with the outlet port 3 through the third guide groove C3.
Based on above relation of connection, when the solvent flowed in from connecing inlet 1, the solvent flowed out from second pH interface 8 through first guiding gutter C1, because be connected with the cavity of pH probe between first pH interface 7 and the second pH interface 8, the solvent flowed out from first pH interface 7 through the cavity of pH probe, again through third guiding gutter C3, flowed out from connecing export 3 to realize that the solvent only passes through the pH probe, does not pass through the back pressure valve.
As shown in fig. 8, which is a schematic connection diagram of the switching valve in the embodiment of the present invention, the stator has a sample pinhole 4, a waste liquid port 6, a first pH interface 7, and a second pH interface 8, the rotor has a second guiding groove C2 and a third guiding groove C3, and the first pH interface 7 and the second pH interface 8 are respectively connected to a chamber of the pH probe; when the stator and the rotor are in a fifth position relation, the sample pinhole 4 is connected with the second pH interface 8 through the third diversion trench C3, and the first pH interface 7 is connected with the waste liquid port 6 through the second diversion trench C2.
Based on above relation of connection, when the solvent flowed in from sample pinhole 4, the solvent reached second pH interface 8 through third guiding gutter C3, because be connected with the cavity of pH probe between first pH interface 7 and the second pH interface 8, the solvent flowed out from first pH interface 7 through the cavity of pH probe, rethread second guiding gutter C2, flowed out from waste liquid mouth 6 to the realization is to pH cavity injection protection liquid.
According to the embodiment of the invention, based on the shape and the position of the diversion trench on the rotor of the switching valve, the diversion trench is connected with the plurality of interfaces on the stator by rotating the rotor to different angles so as to achieve the specific communication purpose, the pH probe and the back pressure valve can be communicated, bypassed and cleaned at will, and the protective liquid is added to the pH probe, so that the disassembly and assembly of the pH probe and the back pressure valve pipeline are avoided, and the working efficiency is improved.
The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention, and all the changes or substitutions should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (11)
1. The switching valve is characterized by comprising a stator and a rotor, wherein the stator is rotationally connected with the rotor, the stator is provided with a plurality of interfaces, at least two interfaces of the plurality of interfaces are respectively connected with a chamber of a pH probe, and at least two interfaces of the plurality of interfaces are respectively connected with a back pressure valve; the rotor is provided with a plurality of guide grooves, and at least one guide groove in the guide grooves is connected with at least two interfaces in the plurality of interfaces.
2. The switching valve according to claim 1, characterized in that the stator has an inlet port 1 and an outlet port 3, and the rotor has a first flow guiding groove C1; when the stator and the rotor are in the first positional relationship, the inlet port 1 is connected to the outlet port 3 through the first guiding groove C1.
3. The switching valve of claim 1, wherein the stator has a receiving port 1, a receiving port 3, a receiving back pressure valve inlet 5, and a receiving back pressure valve outlet 2, the rotor has a first guide groove C1 and a fourth guide groove C4, and the receiving back pressure valve inlet 5 and the receiving back pressure valve outlet 2 are connected to the back pressure valve, respectively; when the stator and the rotor are in a second positional relationship, the inlet port 1 is connected to the back pressure valve inlet port 5 through the first guide groove C1, and the back pressure valve outlet port 2 is connected to the outlet port 3 through the fourth guide groove C4.
4. The switching valve of claim 1, wherein the stator has a receiving port 1, a receiving port 3, a receiving back pressure valve inlet 5, a receiving back pressure valve outlet 2, a first pH interface 7 and a second pH interface 8, the rotor has a first guiding gutter C1, a second guiding gutter C4 and a third guiding gutter C3, the receiving back pressure valve inlet 5 and the receiving back pressure valve outlet 2 are respectively connected with the back pressure valve, and the first pH interface 7 and the second pH interface 8 are respectively connected with the chamber of the pH probe; when the stator and the rotor are in a third positional relationship, the inlet 1 is connected to the back pressure valve inlet 5 through the first guide groove C1, the back pressure valve outlet 2 is connected to the second pH interface 8 through the fourth guide groove C4, and the first pH interface 7 is connected to the outlet 3 through the third guide groove C3.
5. The switching valve of claim 1, wherein the stator has a port 1, a port 3, a first pH port 7 and a second pH port 8, the rotor has a first guide groove C1 and a third guide groove C3, and the first pH port 7 and the second pH port 8 are respectively connected to the chamber of the pH probe; when the stator and the rotor are in a fourth positional relationship, the inlet port 1 is connected to the second pH port 8 through the first guide groove C1, and the first pH port 7 is connected to the outlet port 3 through the third guide groove C3.
6. The switching valve of claim 1, wherein the stator has a sample pin hole 4, a waste liquid hole 6, a first pH interface 7 and a second pH interface 8, the rotor has a second guiding groove C2 and a third guiding groove C3, and the first pH interface 7 and the second pH interface 8 are respectively connected with the chamber of the pH probe; when the stator and the rotor are in a fifth positional relationship, the sample pin hole 4 is connected to the second pH port 8 through the third guide groove C3, and the first pH port 7 is connected to the waste liquid port 6 through the second guide groove C2.
7. The switching valve of any of claims 2 to 6, wherein the first channel C1 comprises a first section and a second section, the first section having a linear configuration and the second section having an arcuate configuration, the first section being connected to the second section.
8. The switching valve of claim 6 wherein said second flow channels C2 are arcuate in configuration.
9. The switching valve of any of claims 4 to 6, wherein the third flow guide C3 is of an arc-line structure.
10. The switching valve of claim 3 or 4, wherein the fourth flow guide C4 is of an arc-shaped structure.
11. The switching valve of claim 1, wherein the rotor has a first guide groove C1, a second guide groove C2, and a fourth guide groove C4, one end of a first section of the first guide groove C1 is a rotation center of the rotor, and a second section of the first guide groove C1 is distributed on the same circumference as the second guide groove C2 and the fourth guide groove C4.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911171219.7A CN110864138B (en) | 2019-11-26 | 2019-11-26 | Switching valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911171219.7A CN110864138B (en) | 2019-11-26 | 2019-11-26 | Switching valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110864138A true CN110864138A (en) | 2020-03-06 |
| CN110864138B CN110864138B (en) | 2021-10-26 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911171219.7A Active CN110864138B (en) | 2019-11-26 | 2019-11-26 | Switching valve |
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| CN (1) | CN110864138B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114235898A (en) * | 2021-12-14 | 2022-03-25 | 苏州英赛斯智能科技有限公司 | Multi-position rotary valve |
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| EP3381530A1 (en) * | 2017-03-29 | 2018-10-03 | EMD Millipore Corporation | Facility for treating a biological fluid |
| CN109541094A (en) * | 2018-12-11 | 2019-03-29 | 苏州英赛斯智能科技有限公司 | A kind of selector valve and liquid-chromatography apparatus |
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2019
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| CN101617226A (en) * | 2007-02-22 | 2009-12-30 | 通用电气健康护理生物科学股份公司 | Be used for the rotating valve that sample injects |
| CN102699516A (en) * | 2007-02-28 | 2012-10-03 | 沃特世科技公司 | Liquid-chromatography apparatus having diffusion-bonded titanium components |
| CN103698445A (en) * | 2013-12-18 | 2014-04-02 | 迈瑞尔实验设备（上海）有限公司 | Online micro sample collector and sampling analysis method |
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Effective date of registration: 20220301 Address after: 310053 room 10007, 1f, No. 6899, Wentao Road, Puyan street, Binjiang District, Hangzhou, Zhejiang Patentee after: Zhejiang Jinyi Shengshi Biological Engineering Co.,Ltd. Address before: 102208 room 1011, 10 / F, block a, Longyu center, building 1, yard 1, Longyu middle street, Huilongguan town, Changping District, Beijing Patentee before: BEIJING HUACHUANG JINGKE BIOTECHNOLOGY Co.,Ltd. |
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