CN201764010U - High-pressure multi-position switching valve - Google Patents
High-pressure multi-position switching valve Download PDFInfo
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- CN201764010U CN201764010U CN2010201581057U CN201020158105U CN201764010U CN 201764010 U CN201764010 U CN 201764010U CN 2010201581057 U CN2010201581057 U CN 2010201581057U CN 201020158105 U CN201020158105 U CN 201020158105U CN 201764010 U CN201764010 U CN 201764010U
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- switching valve
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Abstract
The utility model relates to a high-pressure multi-position switching valve which is characterized in that: the high-pressure multi-position switching valve comprises a rotor shaft, an outer shell, a rotor, a stator, a locating pin and a valve base; the rotor shaft is connected with the rotor by the locating pin and is arranged inside the outer shell, and the stator and the valve base are in an integral or split structure; the high-pressure multi-position switching valve has the advantages that the high-pressure multi-position switching valve has the performances of high pressure resistance, temperature resistance, good chemical stability and low friction factor and the like, and has good chemical stability and is easy to be processed in a high-precision way, therefore, the valve can keep good feeling in the switching process under the high pressure, the static pressure resistance of the valve can exceed 50MPa and the valve can be used more than 100,000 times.
Description
Technical field
The utility model relates to the key part structure of high pressure precision type instrument such as high performance liquid chromatograph, particularly a kind of high pressure multidigit switching valve.
Background technique
High performance liquid chromatograph has obtained using widely in fields such as the production process control of industries such as chemical industry, medicine, food and product quality inspection, environmental protection, import and export checks.High pressure multidigit switching valve is one of very crucial parts in the high pressure precision type instrument system such as liquid chromatograph.High pressure multidigit switching valve is made up of relevant parts such as rotor, stator, valve seats; The fine combination on the plane by rotor and stator under high pressure realizes sealing; By the rotation of rotor, realize the switching that flows to.Rotor is realized the high pressure sealing and the key point in valve life-span, and the material that requires to be adopted has characteristics such as resistance to pressure height, resistance to chemical attack, friction factor are little.
Along with the production domesticization of liquid chromatogram instrument in recent years, instrument is bought and user cost constantly reduces, and liquid chromatography in the application in each field more and more widely.But the high pressure multidigit switching valve as one of liquid chromatogram instrument core component is big owing to technical difficulty, always dependence on import.Be technical merit and the competitive ability that promotes homemade chromatographic apparatus, need to solve the technical barrier of high-grade chromatographic apparatus critical component, these critical components are one of bottlenecks of the homemade chromatographic apparatus technical development of restriction.Along with improving constantly of production domesticization automation equipment degree, solution is applicable to the DOMESTICATION PROBLEM of the critical components such as multidigit switching valve of following homemade high performance liquid chromatograph, more and more receiving the concern of each side, will be one of key that is related to the future development of homemade high performance liquid chromatograph device simultaneously.
The model utility content
The purpose of this utility model is in order to overcome the deficiencies in the prior art, and the spy provides a kind of high pressure multidigit switching valve.
The utility model provides a kind of high pressure multidigit switching valve, it is characterized in that: described high pressure multidigit switching valve comprises rotor shaft 1, shell 2, rotor 3, stator 4, locating stud 5, valve seat 6;
The groove of etching is arranged on 3 of the described rotors, on the stator 4 through hole is arranged, when rotor 3 grooves rotate at rotor 3, is communicated with the through hole of the stator 4 of diverse location, thus the realization MEDIA FLOW to switching.
Rotor material is special polymer composite, and is high pressure resistant, friction factor is little.
Advantage of the present utility model:
High pressure multidigit switching valve described in the utility model, have high pressure resistant, heatproof, performance such as chemical stability is good, friction factor is little, chemical stability is good, be easy to high-precision processing, thereby guarantee under high pressure, valve can keep good hand feeling in handoff procedure, the static withstand voltage 50MPa that surpasses of valve can use more than 100,000 times.
Description of drawings
Below in conjunction with drawings and the embodiments the utility model is described in further detail:
Fig. 1 is a structural representation of the present utility model;
Fig. 2 is two the eight direction changeover valve rotors and the signal of stator switching state principle of embodiment 1 and 2
Fig. 3 is embodiment 1---two eight direction changeover valve rotor-stator switching state two principle schematic;
Fig. 4 is embodiment 2---ten one direction changeover valve rotor-stator switching principle schematic representation.
Embodiment
Present embodiment provides a kind of high pressure multidigit switching valve, it is characterized in that: described high pressure multidigit switching valve comprises rotor shaft 1, shell 2, rotor 3, stator 4, locating stud 5, valve seat 6;
The groove of etching is arranged on 3 of the described rotors, on the stator 4 through hole is arranged, when rotor 3 grooves rotate at rotor 3, is communicated with the through hole of the stator 4 of diverse location, thus the realization MEDIA FLOW to switching.
Two eight direction changeover valves providing of present embodiment are etched with four sections grooves on the rotor cover as shown in Figure 1, 2, 3, and 8 through holes are arranged on the stator.
Present embodiment provides a kind of high pressure multidigit switching valve, it is characterized in that: described high pressure multidigit switching valve comprises rotor shaft 1, shell 2, rotor 3, stator 4, locating stud 5, valve seat 6;
The groove of etching is arranged on 3 of the described rotors, on the stator 4 through hole is arranged, when rotor 3 grooves rotate at rotor 3, is communicated with the through hole of the stator 4 of diverse location, thus the realization MEDIA FLOW to switching.
Shown in Fig. 1,4, ten one direction changeover valves that present embodiment provides, stator and valve seat are the integrated design, and are etched with a groove on the rotor cover, and 10 through holes are arranged on the stator.
Claims (2)
1. high pressure multidigit switching valve, it is characterized in that: described high pressure multidigit switching valve comprises rotor shaft (1), shell (2), rotor (3), stator (4), locating stud (5), valve seat (6);
Rotor shaft (1) is connected with rotor (3) by locating stud (5), and is installed in the inside of shell (2), and stator (4) is whole with valve seat (6) or divides body structure.
2. according to the described high pressure multidigit of claim 1 switching valve, it is characterized in that: the groove of etching is arranged on described rotor (3) face, and stator has through hole on (4), when rotor (3) groove rotates at rotor (3), is communicated with the through hole of the stator (4) of diverse location.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201581057U CN201764010U (en) | 2010-04-14 | 2010-04-14 | High-pressure multi-position switching valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201581057U CN201764010U (en) | 2010-04-14 | 2010-04-14 | High-pressure multi-position switching valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201764010U true CN201764010U (en) | 2011-03-16 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201581057U Expired - Fee Related CN201764010U (en) | 2010-04-14 | 2010-04-14 | High-pressure multi-position switching valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201764010U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102808971A (en) * | 2012-01-09 | 2012-12-05 | 加拿大博朗科技有限公司 | Fluid selector valve |
| CN103654425A (en) * | 2012-09-26 | 2014-03-26 | 苏州工业园区咖乐美电器有限公司 | Multi-way switching device for water way |
| CN104728472A (en) * | 2015-03-18 | 2015-06-24 | 丁文玲 | Fluid communication switching device |
| CN107035886A (en) * | 2017-06-12 | 2017-08-11 | 成都凯圣捷科技有限公司 | Ten direction changeover valves |
| CN107152542A (en) * | 2017-07-06 | 2017-09-12 | 成都凯圣捷科技有限公司 | Change-over pilot valve |
-
2010
- 2010-04-14 CN CN2010201581057U patent/CN201764010U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102808971A (en) * | 2012-01-09 | 2012-12-05 | 加拿大博朗科技有限公司 | Fluid selector valve |
| CN102808971B (en) * | 2012-01-09 | 2014-09-03 | 加拿大博朗科技有限公司 | Fluid selector valve |
| CN103654425A (en) * | 2012-09-26 | 2014-03-26 | 苏州工业园区咖乐美电器有限公司 | Multi-way switching device for water way |
| CN104728472A (en) * | 2015-03-18 | 2015-06-24 | 丁文玲 | Fluid communication switching device |
| CN104728472B (en) * | 2015-03-18 | 2018-04-06 | 丁文玲 | Switching device is in fluid communication in one kind |
| CN107035886A (en) * | 2017-06-12 | 2017-08-11 | 成都凯圣捷科技有限公司 | Ten direction changeover valves |
| CN107152542A (en) * | 2017-07-06 | 2017-09-12 | 成都凯圣捷科技有限公司 | Change-over pilot valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110316 Termination date: 20170414 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |