CN202109027U - Eight-position switching valve - Google Patents
Eight-position switching valve Download PDFInfo
- Publication number
- CN202109027U CN202109027U CN2011202104967U CN201120210496U CN202109027U CN 202109027 U CN202109027 U CN 202109027U CN 2011202104967 U CN2011202104967 U CN 2011202104967U CN 201120210496 U CN201120210496 U CN 201120210496U CN 202109027 U CN202109027 U CN 202109027U
- Authority
- CN
- China
- Prior art keywords
- rotating shaft
- rotor
- housing
- bearing
- switching
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Images
Landscapes
- Multiple-Way Valves (AREA)
Abstract
The utility model discloses an eight-position switching valve, which comprises a casing, a stator with a plurality of switching openings, a rotor with a groove, a bearing seat, a bearing and a rotating shaft, wherein the stator, the rotor, the bearing seat, the bearing and the rotating shaft are arranged inside the casing. The rotating shaft comprises a first rotating shaft and a second rotating shaft movably connected with the first rotating shaft, and a steel ball capable of enabling a rotor plane to be normally fine-tuned is arranged between the first rotating shaft and the second rotating shaft. No dead volume exists on the eight-position switching valve, simultaneously the rotor plane and a stator plane can be adhered more perfectly though normal fine-turning of the rotor plane, and leakage of contact surfaces can be effectively avoided, thereby improving measurement accuracy of instruments and prolonging service life of the instruments.
Description
Technical field
The utility model relates to a kind of many liquid road switching device that applies in liquid chromatogram instrument and the analytical instrument of water quality field, especially a kind of liquid road switching valve.
Background technique
In liquid chromatogram instrument and analytical instrument of water quality field, many liquid road switching valve is a kind of parts that can effectively reduce the complexity of instrument, and along with the continuous development of modern industry, China is also increasing to the demand of this many liquid road switching valve.Many liquid road switching valve mainly contains two kinds of mechanical type and electrodynamic types in the market, and each switching port of many liquid of electrodynamic type road switching valve is all installed a solenoid valve, through the break-make electricity of solenoid valve being controlled the Kai Heguan of switching port.Many liquid of mechanical type road switching valve, the modes of cutting apart stream that adopt are segmented in a complete stream on two assemblies, through reconfiguring two assemblies more; Form complete stream, disclose a kind of high pressure multidigit switching valve like one Chinese patent application 201764010U, described high pressure multidigit switching valve comprises rotor shaft, shell; Rotor, stator, locating stud, valve seat; Rotor shaft is connected with rotor through locating stud, and is installed in the inside of shell, and stator and valve seat position integral body or split-type structural have the groove of etching on the said rotor cover; Through hole is arranged on the stator, and rotor groove is communicated with the through hole of the stator of diverse location when rotor rotation.
Above-mentioned many liquid of prior electric formula road switching valve all has a common characteristic; Dead volume is big; Be prone to produce cross infection, and many liquid of prior mechanical road switching valve rotor and rotating shaft are an integral body, in the time of rotor plane and axle off plumb; The surface of contact of rotor and stator is easy to generate the phenomenon of leakage, thereby influences the measuring accuracy and the working life of instrument.
Because the defective that above-mentioned existing many liquid road switching valve exists, the design people actively studies innovation, in the hope of founding a kind of eight switching valves of new structure, makes it have more practicability.
The model utility content
The main purpose of the utility model is, overcomes the defective that existing many liquid road switching valve exists, and a kind of eight switching valves of new structure are provided; Technical problem to be solved is to make its obturation effect good, and the design of steel ball can make the rotor plane normal direction finely tune; Thereby fit in more perfect and stator plane; The situation that reaches the surface of contact leakage that stops rotor and stator takes place, thereby is suitable for practicality more, and has the value on the industry.
The purpose of the utility model and solve its technical problem and adopt following technological scheme to realize.A kind of eight switching valves according to the utility model proposition; Comprise housing and be arranged in the housing stator with a plurality of switching ports, rotor, bearing support, bearing and the rotating shaft of band groove; It is characterized in that; Said rotating shaft comprises first rotating shaft and second rotating shaft that flexibly connects mutually with first rotating shaft, is provided with the steel ball that can make the fine setting of rotor plane normal direction between said first rotating shaft and second rotating shaft.
Aforesaid eight switching valves, wherein said steel ball is spherical steel ball.
Aforesaid eight switching valves, wherein said housing comprise first housing and second housing close-connected with it, and said first housing and second housing are stainless housing.
Aforesaid eight switching valves, wherein said it also comprise the snap ring that is arranged on second housing, through snap ring eight switching valves are fixed on the equipment.
Aforesaid eight switching valves, wherein said stator comprises the switching port that is provided with a public switching port and eight diverse locations, and said rotor recesses is when rotor rotation, and public switching port is connected with a switching port of diverse location.
Aforesaid eight switching valves; Through the clutch shaft bearing and second bearing fixing, the bottom of second bearing is fixed on the bearing support, between second bearing and second rotating shaft, is provided with spring respectively at the two ends up and down of wherein said second rotating shaft; Through rotatably compressing of bearing support; The bearing that is arranged on the bearing support is exerted pressure to spring, makes rotor plane and stator plane produce certain pretightening force, stops the surface of contact leakage.
By technique scheme, eight switching valves of the utility model have advantage at least:
There is not dead volume in eight switching valves of the utility model, can finely tune through the normal direction of its rotor plane simultaneously, thereby make rotor and stator plane more perfectly fit, and effectively prevent the surface of contact leakage, thereby improve the measuring accuracy and the working life of instrument.
In sum, eight switching valves of the utility model special construction, it has above-mentioned many advantages and use value, thereby is suitable for practicality more.
Above-mentioned explanation only is the general introduction of the utility model technological scheme, in order more to know the technological means of understanding the utility model, and can implement according to the content of specification, below with the preferred embodiment of the utility model and conjunction with figs. specify as after.
Description of drawings
Fig. 1 is the structural representation of described eight switching valves of the utility model.
Fig. 2 is the rotor and the stator switching state principle schematic of described eight switching valves of the utility model.
Embodiment
For further setting forth the utility model is to reach technological means and the effect that predetermined model utility purpose is taked, below in conjunction with accompanying drawing and preferred embodiment, to the embodiment of the utility model specify as after.
A kind of eight switching valves comprise housing and are arranged in the housing stator 2 with a plurality of switching ports, rotor 3, bearing support 7, bearing and the rotating shaft of band groove that wherein stator 2 comprises the switching port that is provided with a public switching port and eight selective diverse locations; When rotor recesses is rotated at rotor 3; Public switching port is connected with a switching port of diverse location, the stream port occlusion at remaining switching port place, and then form complete stream and carry liquid; And there is not dead volume in the stream; If one of them switching port in the switching port of eight selective diverse locations of stator is not aimed in the rotor recesses outer end, then stream is obstructed, and liquid can not flow.The rotation of rotor 3 provides power by rotating shaft; Make the center line generation 45 displacement on rotor plane relative stator plane through rotating shaft; Thereby cut off original stream; Connect the switching port of public switching port and another selective diverse location, form new stream, thereby connect flowing of another kind of liquid.In order to guarantee the contact ratio of rotor recesses and some peripheral switching ports, must guarantee that the each angle of rotating of rotating shaft is 45 ° or its multiple.Rotating shaft comprises first rotating shaft 5 and second rotating shaft 6 that is connected through straight pin 13 interference fit with first rotating shaft 5.Between first rotating shaft 5 and second rotating shaft 6, be provided with spherical steel ball 12, the rotor plane normal direction is finely tuned, thereby make rotor 3 fit with the stator plane more closely; Reach and stop rotor 3 and stator 2 surface of contact leakages; The two ends up and down of second rotating shaft 6 are fixing through the clutch shaft bearing 10 and second bearing 8 respectively, can bear the power of X axle and Y direction, realize the stable effectively running of second rotating shaft 6; Reduced the friction when second rotating shaft 6 is rotated; Second bearing 6 is fixed on the bearing support 7 simultaneously, between second bearing 8 and second rotating shaft 6, is provided with belleville spring 9, through rotatably compressing of bearing support 7; Make rotor plane and stator plane produce certain pretightening force, thereby stop the surface of contact leakage.
The utility model middle shell comprises first housing 1 and second housing 4 close-connected with it; Said first housing 1 and second housing 4 are stainless housing; Rotor 3, bearing support 7, bearing and the rotating shaft sealing of stator 2, band groove in housing, stoped contacting of fluid and air.
Another design point of the utility model is that it also comprises the snap ring 11 that is arranged on second housing, through snap ring 11 described eight switching valves of the utility model is fixed on the employed equipment.
The above; It only is the preferred embodiment of the utility model; Not being that the utility model is done any pro forma restriction, though the utility model with the preferred embodiment exposure as above, yet is not in order to limit the utility model; Anyly be familiar with the professional and technical personnel; In not breaking away from the utility model technological scheme scope, make a little change or be modified to the equivalent embodiment of equivalent variations when the technology contents of above-mentioned announcement capable of using, be the content that does not break away from the utility model technological scheme in every case;, all still belong in the scope of the utility model technological scheme any simple modification, equivalent variations and modification that above embodiment did according to the technical spirit of the utility model.
Claims (6)
1. eight switching valves; Comprise housing and be arranged in the housing stator with a plurality of switching ports, rotor, bearing support, bearing and the rotating shaft of band groove; It is characterized in that; Said rotating shaft comprises first rotating shaft and second rotating shaft that flexibly connects mutually with first rotating shaft, is provided with the steel ball that can make the fine setting of rotor plane normal direction between said first rotating shaft and second rotating shaft.
2. eight switching valves according to claim 1 is characterized in that described steel ball is spherical steel ball.
3. eight switching valves according to claim 1 is characterized in that, said housing comprises first housing and second housing close-connected with it, and said first housing and second housing are stainless housing.
4. eight switching valves according to claim 1 is characterized in that it also comprises the snap ring that is arranged on second housing.
5. eight switching valves according to claim 1; It is characterized in that; Said stator comprises the switching port that is provided with a public switching port and eight diverse locations, and said rotor recesses is when rotor rotation, and public switching port is connected with a switching port of diverse location.
6. eight switching valves according to claim 1; It is characterized in that; Through the clutch shaft bearing and second bearing fixing, the bottom of second bearing is fixed on the bearing support, between second bearing and second rotating shaft, is provided with spring respectively at the two ends up and down of said second rotating shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202104967U CN202109027U (en) | 2011-06-20 | 2011-06-20 | Eight-position switching valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202104967U CN202109027U (en) | 2011-06-20 | 2011-06-20 | Eight-position switching valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202109027U true CN202109027U (en) | 2012-01-11 |
Family
ID=45434461
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011202104967U Expired - Lifetime CN202109027U (en) | 2011-06-20 | 2011-06-20 | Eight-position switching valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202109027U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104712790A (en) * | 2015-03-18 | 2015-06-17 | 丁文玲 | Fluid communication switching device |
| 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 |
| CN115012862A (en) * | 2022-07-19 | 2022-09-06 | 天津立林石油机械有限公司 | Hydraulic oscillator for breaking static friction resistance between drilling tool and well wall |
-
2011
- 2011-06-20 CN CN2011202104967U patent/CN202109027U/en not_active Expired - Lifetime
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104712790A (en) * | 2015-03-18 | 2015-06-17 | 丁文玲 | Fluid communication switching device |
| CN104728472A (en) * | 2015-03-18 | 2015-06-24 | 丁文玲 | Fluid communication switching device |
| CN104712790B (en) * | 2015-03-18 | 2018-01-16 | 丁文玲 | Switching device is in fluid communication in one kind |
| 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 |
| CN115012862A (en) * | 2022-07-19 | 2022-09-06 | 天津立林石油机械有限公司 | Hydraulic oscillator for breaking static friction resistance between drilling tool and well wall |
| CN115012862B (en) * | 2022-07-19 | 2024-04-12 | 天津立林石油机械有限公司 | Hydraulic oscillator for breaking static friction resistance between drilling tool and well wall |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202109027U (en) | Eight-position switching valve | |
| CN100516534C (en) | Dry helical lobe compressor host rotor spindle sealing structure | |
| CN201772103U (en) | Three-position four-way hand-operated rotary valve | |
| CN104633156A (en) | Valve | |
| CN201326598Y (en) | End-face sealed manual three-position four-way reversing rotary valve | |
| CN202992266U (en) | Multi-channel corrosion-resisting high-temperature-resisting rotary valve | |
| CN204115796U (en) | Wear-resistant water meter centre | |
| CN203114767U (en) | Manual rotary hydraulic reversing valve | |
| CN202972292U (en) | Structure of rotary air inlet joint | |
| CN202132538U (en) | Steady flow type eccentric semispherical valve | |
| CN207848469U (en) | A kind of ready-package seal ball-valve | |
| CN206802384U (en) | A kind of T-shaped tee ball valve | |
| CN201954031U (en) | High-pressure check valve | |
| CN204344984U (en) | Face dress floating ball valve directly | |
| CN201133350Y (en) | Dry screw compressor main unit rotor spindle sealing structure | |
| CN219588159U (en) | Hard seal fixed ball valve | |
| CN202719185U (en) | Valve core for eccentric half ball valve | |
| CN220870148U (en) | Three-way ball valve | |
| CN204345000U (en) | A kind of two ball combination brake switch and proporting | |
| CN203797048U (en) | Rotating ball typehigh-pressure three-way commutator | |
| CN203594819U (en) | Floating ball linkage type control ball valve | |
| CN208935468U (en) | A kind of more fluid path switching valves | |
| CN202431984U (en) | No-pin internal-transmission central through shaft butterfly valve with sealing rings of valve body | |
| CN218440774U (en) | Program control valve for S-Zorb device | |
| CN208107207U (en) | Low torque multiple elastic seal valve seat ball valve |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP03 | Change of name, title or address |
Address after: 03 -3 floor, 180 software Avenue, Yuhuatai District, Jiangsu, Nanjing 210012, China Patentee after: Jiangsu Yinyuan Polytron Technologies Inc Address before: 210019, 10, 01, 69 Olympic Sports Avenue, Jianye District, Jiangsu, Nanjing Patentee before: Nanjing Xiaoqiaoliushui Environmental Protection and Sci-technology Ltd. |
|
| CP01 | Change in the name or title of a patent holder |
Address after: 03 -3 floor, 180 software Avenue, Yuhuatai District, Jiangsu, Nanjing 210012, China Patentee after: Jiangsu small bridge running water Polytron Technologies Inc Address before: 03 -3 floor, 180 software Avenue, Yuhuatai District, Jiangsu, Nanjing 210012, China Patentee before: Jiangsu Yinyuan Polytron Technologies Inc |
|
| CP01 | Change in the name or title of a patent holder | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120111 |
|
| CX01 | Expiry of patent term |