CN106979355A - Switching valve and double essential oil filters - Google Patents
Switching valve and double essential oil filters Download PDFInfo
- Publication number
- CN106979355A CN106979355A CN201710372982.0A CN201710372982A CN106979355A CN 106979355 A CN106979355 A CN 106979355A CN 201710372982 A CN201710372982 A CN 201710372982A CN 106979355 A CN106979355 A CN 106979355A
- Authority
- CN
- China
- Prior art keywords
- seal
- switching valve
- valve body
- valve
- protuberance
- 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.)
- Pending
Links
- 239000000341 volatile oil Substances 0.000 title claims abstract description 26
- 238000007789 sealing Methods 0.000 claims abstract description 23
- 230000003068 static effect Effects 0.000 abstract description 5
- 239000003921 oil Substances 0.000 description 6
- 230000000007 visual effect Effects 0.000 description 6
- 238000010276 construction Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000010008 shearing Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000007123 defense Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- 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
- F16K11/08—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only taps or cocks
- F16K11/085—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only taps or cocks with cylindrical plug
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D35/00—Filtering devices having features not specifically covered by groups B01D24/00 - B01D33/00, or for applications not specifically covered by groups B01D24/00 - B01D33/00; Auxiliary devices for filtration; Filter housing constructions
- B01D35/12—Devices for taking out of action one or more units of multi- unit filters, e.g. for regeneration
-
- 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
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/44—Mechanical actuating means
- F16K31/60—Handles
- F16K31/605—Handles for single handle mixing valves
-
- 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
- F16K5/00—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary
- F16K5/04—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary with plugs having cylindrical surfaces; Packings therefor
- F16K5/0457—Packings
- F16K5/0478—Packings on the plug
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Filtration Of Liquid (AREA)
Abstract
Switching valve and double essential oil filters that the present invention is provided, are related to double essential oil art of filters.The switching valve includes valve body, valve element and spacing ring.Valve element includes the embedded division and protuberance being connected with each other, and the diameter of protuberance is less than the diameter of embedded division, and embedded division is rotated with valve body and is connected, and spacing ring is set in outside protuberance, and is connected with protuberance rotation, and spacing ring is connected with valve body.Switching valve also includes first seal, and first seal is connected with embedded division, and first seal is rotated with valve body and is connected, to be rotated with embedded division relative to valve body.The switching valve adapts to static or handover operation, and keeps sealing good, improves equipment reliability of operation.Double essential oil filters that the present invention is provided use the switching valve, and envelope works well, and when carrying out filter switching, remain to keep good sealing, and the equipment reliability of operation is high.
Description
Technical field
The present invention relates to double essential oil art of filters, in particular to a kind of switching valve and double essential oil filters.
Background technology
Speed regulator system is one of important control device in power station, and guiding valve is used as the exectorial control member of speed regulator
Part, in order to ensure accuracy, flexibility and the reliability of operation, its operating pressure oil sources must be clean, oily demand
Higher, granularity will at least reach more than 8 grades, therefore, and the higher filtering of precision is mounted with entering at guiding valve hydraulic fluid port import
Device, filtering accuracy has reached 0.005mm, is configured using the double filter cores of redundancy, can carry out free switching in operation and not shut down
The method of operation under carry out filter core and be replaced and cleaned work.
In the double essential oil filters used at this stage, guiding valve is only capable of playing sealing function under static state, still
The double essential oil filters actually used need handover operation, and be pressurized shearing when switching, and sealing effectiveness is poor, will
There is oil leak and run oily event, potential safety hazard is brought to equipment operation, if dealing with improperly or can also cause one to environment not in time
Fixed pollution.
Therefore, it is the technical problem for needing urgently to solve at present to research and develop a kind of switching valve that can effectively solve the above problems.
The content of the invention
It is an object of the invention to provide a kind of switching valve, the switching valve adapts to static or handover operation, and keeps
Sealing is good, improves equipment reliability of operation.
Another object of the present invention is to provide a kind of pair of essential oil filter, it uses the switching valve that the present invention is provided, should
Double essential oil filter seals work well, and when carrying out filter switching, remain to keep good sealing, equipment operation
Reliability it is high.
The present invention, which solves its technical problem, to be realized using following technical scheme：
A kind of switching valve that the present invention is provided, including valve body, valve element and spacing ring；The valve element includes the embedding of interconnection
Enter portion and protuberance, the diameter of the protuberance is less than the diameter of the embedded division, and the embedded division is rotated with the valve body to be connected
Connect, the spacing ring is set in outside the protuberance, and be connected with protuberance rotation, the spacing ring connects with the valve body
Connect；Stating switching valve also includes first seal, and the first seal is connected with the embedded division, and the first seal and
The valve body rotates connection, to be rotated with the embedded division relative to the valve body.
Further, the embedded division offers the first seal groove, first sealing close to one end of the protuberance
Part is arranged in first seal groove, and the first seal and the bottom land of the valve body and first seal groove are supported
Hold.
Further, the first seal is seal ring for piston hole.
Further, the switching valve also includes second seal and the 3rd seal；The second seal with it is described
Protuberance is connected, and the second seal is rotated with the internal perisporium of the spacing ring and is connected；3rd seal is arranged on
The spacing ring is between one end end face and the valve body of the embedded division.
Further, the protuberance is provided with the second seal groove, second sealing close to one end of the embedded division
Part is arranged in second seal groove, and the second seal and the internal perisporium and second seal groove of the spacing ring
Bottom land support.
Further, second seal groove is annular in shape, and being radially arranged along the valve element.
Further, the 3rd seal groove of ring-type is provided with the spacing ring, the 3rd seal is arranged on described
In 3rd seal groove, and the 3rd seal is supported with the end face of the spacing ring and the bottom land of the 3rd seal groove.
Further, the second seal is seal ring for piston hole, and the 3rd seal is O-ring seal.
Further, the switching valve also includes rotating bar, and the rotating bar is connected with the protuberance, and described spacing
It is provided with ring in arc chute, the rotating bar and straight pin is installed, the straight pin is connected with the slide.
A kind of pair of essential oil filter that the present invention is provided, including the first filter, the second filter and switching valve.
The switching valve includes valve body, valve element and spacing ring；The valve element includes the embedded division and protuberance being connected with each other,
The diameter of the protuberance is less than the diameter of the embedded division, and the embedded division is rotated with the valve body and is connected, the spacing ring
It is set in outside the protuberance, and is connected with protuberance rotation, the spacing ring is connected with the valve body；State switching valve also
Including first seal, the first seal is connected with the embedded division, and the first seal is rotated with the valve body
Connection, to be rotated with the embedded division relative to the valve body.
The valve body is connected with first filter and second filter respectively.
The beneficial effect of the embodiment of the present invention is：
Its first seal of the switching valve that the present invention is provided is connected with embedded division, can be rotated with embedded division relative to valve body, no
Be only capable of inactive state lower sealing valve body, when entering passerby's handover operation, also keep good sealing, improve equipment operation can
By property.
Double essential oil filters that the present invention is provided, it uses the switching valve that the present invention is provided, this pair of essential oil filter seal
Work well, and when carrying out filter switching, remain to keep good sealing, equipment reliability of operation is high.
Brief description of the drawings
In order to illustrate the technical solution of the embodiments of the present invention more clearly, below will be attached to what is used required in embodiment
Figure is briefly described, it will be appreciated that the following drawings illustrate only some embodiment of the present invention, therefore be not construed as pair
The restriction of scope, for those of ordinary skill in the art, on the premise of not paying creative work, can also be according to this
A little accompanying drawings obtain other related accompanying drawings.
The structural representation at the first visual angle of double essential oil filters that Fig. 1 provides for the specific embodiment of the invention.
The structural representation at the second visual angle of double essential oil filters that Fig. 2 provides for the specific embodiment of the invention.
The structural representation at the 3rd visual angle of double essential oil filters that Fig. 3 provides for the specific embodiment of the invention.
Fig. 4 is the enlarged drawing at B in Fig. 3.
Icon：The double essential oil filters of 100-；The filters of 110- first；The filters of 120- second；200- switching valves；210- valves
Body；220- valve elements；221- embedded divisions；The seal grooves of 2212- first；223- protuberances；The seal grooves of 2231- second；230- spacing rings；
The seal grooves of 231- the 3rd；232- arc chutes；240- first seals；250- second seals；The seals of 260- the 3rd；270-
Rotating bar；271- straight pins.
Embodiment
To make the purpose, technical scheme and advantage of the embodiment of the present invention clearer, below in conjunction with the embodiment of the present invention
In accompanying drawing, the technical scheme in the embodiment of the present invention is clearly and completely described, it is clear that described embodiment is
A part of embodiment of the present invention, rather than whole embodiments.The present invention implementation being generally described and illustrated herein in the accompanying drawings
The component of example can be arranged and designed with a variety of configurations.
Therefore, the detailed description of embodiments of the invention below to providing in the accompanying drawings is not intended to limit claimed
The scope of the present invention, but be merely representative of the present invention selected embodiment.Based on the embodiment in the present invention, this area is common
The every other embodiment that technical staff is obtained under the premise of creative work is not made, belongs to the model that the present invention is protected
Enclose.
It should be noted that：Similar label and letter represents similar terms in following accompanying drawing, therefore, once a certain Xiang Yi
It is defined in individual accompanying drawing, then it further need not be defined and explained in subsequent accompanying drawing.
In the description of the invention, it is necessary to explanation, term " on " etc. instruction orientation or position relationship be based on attached
Orientation or position relationship shown in figure, or the orientation usually put when using of the invention product or position relationship, be only for
It is easy to the description present invention and simplifies description, rather than indicates or imply that signified device or element there must be specific side
Position, with specific azimuth configuration and operation, therefore be not considered as limiting the invention.
In addition, term " first ", " second ", " the 3rd " and " the 4th " etc. is only used for distinguishing description, and it is not intended that referring to
Show or imply relative importance.
In the description of the invention, in addition it is also necessary to explanation, unless had more specific regulation in addition with limiting, term " is set
Put ", " connection " more broadly understanding should be done, for example, " connection " can be fixedly connected or be detachably connected, or one
Connect body；Can be mechanical connection or electrical connection；Can be joined directly together, can also be indirect by intermediary
It is connected, can is the connection of two element internals.For the ordinary skill in the art, on being understood with concrete condition
State the concrete meaning of term in the present invention.
Below in conjunction with the accompanying drawings, an embodiment of the invention is elaborated, it is following in the case where not conflicting
Feature in embodiment can be mutually combined.
The structural representation at the visual angle of double essential oil filters 100 first that Fig. 1 provides for the present embodiment.Fig. 2 is the present embodiment
The structural representation at the visual angle of double essential oil filters 100 second provided.Double essential oil filters 100 that Fig. 3 provides for the present embodiment
The structural representation at the 3rd visual angle.Incorporated by reference to reference picture 1- Fig. 3, double essential oil filters 100 that the present invention is provided include the first mistake
Filter 110, the second filter 120 and switching valve 200.First filter 110 and the second filter 120 are connected by switching valve 200
Connect.Due to using the switching valve 200, double essential oil filters 100 that the present invention is provided can not only switch first according to actual needs
The filter 120 of filter 110 and second, also, good sealing can be kept in handoff procedure, it is reliable that equipment is run
Property it is high.It should be appreciated that in other preferred embodiments, the switching valve 200 can individually be sold.
Fig. 4 is the enlarged drawing at B in Fig. 3.Incorporated by reference to reference picture 1 and Fig. 4, the switching valve 200 that the present invention is provided is applied to
The switching of the double filters 110 of essential oil filter 100 first and the second filter 120.The switching valve 200 includes valve body 210, valve element
220th, spacing ring 230, first seal 240, second seal 250, the 3rd seal 260 and rotating bar 270.
In the present embodiment, spacing ring 230 and valve body 210 are connected, and valve element 220 connects with valve body 210 and the rotation of spacing ring 230
Connect, first seal 240 is arranged between valve body 210 and valve element 220, and be connected with the rotation of valve body 210, with embedded division 221
Rotated relative to valve body 210.Second seal 250 is arranged between valve element 220 and spacing ring 230, and second seal 250 and limit
The internal perisporium of position ring 230 rotates connection.3rd seal 260 is arranged between valve body 210 and spacing ring 230.Rotating bar 270 with
Valve element 220 is connected.
In the present embodiment, valve body 210 is connected with the first filter 110 and the second filter 120 respectively, is set on valve body 210
Opening (figure is not marked) is equipped with, for housing valve element 220.
Valve element 220 includes the embedded division 221 and protuberance 223 being connected with each other.The diameter of protuberance 223 is less than embedded division
221 diameter, embedded division 221 is rotated with valve body 210 and is connected.
Embedded division 221 offers the first seal groove 2212 close to one end of protuberance 223, and the first seal groove 2212 is used to hold
Put first seal 240.
Preferably, in the present embodiment, the first seal groove 2212 is annular in shape, and being radially arranged along embedded division 221.
It is understood that the first seal groove 2212 of this structure is used to house first seal 240, active force is with cutting
Shear force direction is identical, and sealing effectiveness is optimal.It should be appreciated that in other preferred embodiments, the first seal groove 2212 can be along embedding
The perisporium for entering portion 221 is obliquely installed.
Protuberance 223 is provided with the second seal groove 2231 close to one end of embedded division 221, and the second seal groove 2231 is used to hold
Put second seal 250.
Also, in the present embodiment, the second seal groove 2231 is also annular in shape, and being radially arranged along protuberance 223.
It can also be appreciated that the second seal groove 2231 of this structure is used to house second seal 250, active force
Identical with shearing force direction, sealing effectiveness is optimal.In other preferred embodiments, the second seal groove 2231 can be along protuberance
223 perisporium is obliquely installed.
Spacing ring 230 is annular in shape, is set in outside protuberance 223, rotate and be connected with protuberance 223, and is opened with valve body 210
The connection of mouth face.
It is understood that the diameter of embedded division 221 of switching valve 200 its valve element 220 provided due to the present embodiment is more than
The diameter of protuberance 223, therefore, the displacement of the limitation of spacing ring 230 embedded division 221 in its axial direction.
Preferably, in the present embodiment, the opening surface of spacing ring 230 and valve element 220 is bolted to connection.
Spacing ring 230 is provided with the 3rd seal groove 231 close to one end end face of embedded division 221.3rd seal groove 231 is in ring
Shape, and being radially arranged along spacing ring 230.3rd seal groove 231 is used to house the 3rd seal 260.
Spacing ring 230 is additionally provided with arc chute 232 on another end face away from the 3rd seal groove 231.Arc chute
232 are used to be connected with rotating bar 270.
Preferably, in the present embodiment, arc chute 232 is in 90 °.
Preferably, in the present embodiment, straight pin 271 is installed in rotating bar 270, straight pin 271 is connected with slide.
It is understood that rotating bar 270 can be with the relative valve body 210 of movable valve plug 220 and spacing ring 230 in 90 ° of scopes
It is interior to rotate.
First seal 240 is arranged in the first seal groove 2212, and with the bottom land of the seal groove 2212 of valve body 210 and first
Support.
Preferably, in the present embodiment, first seal 240 is seal ring for piston hole.
It is understood that the pressure oil in valve body 210 may be by the gap between valve body 210 and embedded division 221
Seepage, causes to run oily event, potential safety hazard is brought to equipment operation, if dealing with improperly or can also cause one to environment not in time
Fixed pollution.The first seal 240 that the present embodiment is provided not only can be effectively close when valve element 220 is static with respect to valve body 210
The gap sealed between valve body 210 and embedded division 221, also, when valve element 220 is rotated relative to valve body 210, also ensure that valve body
Sealing between 210 and embedded division 221.
It should be noted that in the present embodiment, first seal 240 plays the first defence line.It is simple in construction, leakproof effect
Fruit is good.
Second seal 250 is arranged in the second seal groove 2231, and second seal 250 and the inner circumferential of spacing ring 230
The bottom land of wall and the second seal groove 2231 is supported.
3rd seal 260 is arranged in the 3rd seal groove 231, and positioned between spacing ring 230 and valve body 210.
Preferably, in the present embodiment, second seal 250 is seal ring for piston hole, and the 3rd seal 260 is O-shaped close
Seal.
It is understood that once first seal 240 fails, or have pressure oil from valve body 210 and embedded division 221 it
Between gap leakage, pressure oil can also be further along the gap leakage between spacing ring 230 and valve body 210, or from spacing
Gap leakage between ring 230 and protuberance 223.Therefore, the seal of second seal 250 and the 3rd that the present embodiment is provided
260 can form the secondary defense of this switching valve 200, to further being oozed along the gap between spacing ring 230 and valve body 210
Leakage, or the pressure oil of the gap leakage between spacing ring 230 and protuberance 223 seal.Not only in the phase of valve element 220
The gap between valve body 210 and protuberance 223, and spacing ring 230 and valve body can be effectively sealed against when static to valve body 210
Gap between 210.Also, when valve element 220 is rotated relative to valve body 210, also ensure that valve body 210 and protuberance 223 it
Between, the sealing between spacing ring 230 and valve body 210.
To sum up, switching valve 200 its first seal 240 that the present invention is provided is connected with embedded division 221, can be with embedded division
221 rotate relative to valve body 210, can not only inactive state lower sealing valve body 210, when entering passerby's handover operation, also keep good
Sealing, improves equipment reliability of operation.And the seal 260 of second seal 250 and the 3rd, which can also play second, to be prevented
The effect of line, fails to prevent first seal 240.
The switching valve 200 is simple in construction, practical, and sealing effectiveness is good.
Double essential oil filters 100 that the present invention is provided, due to using the switching valve 200, with dual sealing functions, sealing
Work well.Therefore, when carrying out filter switching, remain to keep good sealing, equipment reliability of operation is high.
Upper described only the preferred embodiments of the present invention, are not intended to limit the invention, for the technology of this area
For personnel, the present invention can have various modifications and variations.Within the spirit and principles of the invention, that is made any repaiies
Change, equivalent substitution, improvement etc., should be included in the scope of the protection.
Claims (10)
1. a kind of switching valve, including valve body, valve element and spacing ring；The valve element includes the embedded division and protuberance being connected with each other,
The diameter of the protuberance is less than the diameter of the embedded division, and the embedded division is rotated with the valve body and is connected, the spacing ring
It is set in outside the protuberance, and is connected with protuberance rotation, the spacing ring is connected with the valve body；Its feature exists
In the switching valve also includes first seal, and the first seal is connected with the embedded division, and the first seal
Rotate and be connected with the valve body, to be rotated with the embedded division relative to the valve body.
2. switching valve as claimed in claim 1, it is characterised in that the embedded division is offered close to one end of the protuberance
First seal groove, the first seal is arranged in first seal groove, and the first seal and the valve body and
The bottom land of first seal groove is supported.
3. switching valve as claimed in claim 2, it is characterised in that first seal groove is seal ring for piston hole.
4. switching valve as claimed in claim 1, it is characterised in that the switching valve also includes second seal and the 3rd sealing
Part；The second seal is connected with the protuberance, and the second seal and the internal perisporium of the spacing ring rotate company
Connect；3rd seal is arranged on the spacing ring between one end end face and the valve body of the embedded division.
5. switching valve as claimed in claim 4, it is characterised in that the protuberance is provided with close to one end of the embedded division
Second seal groove, the second seal is arranged in second seal groove, and the second seal and the spacing ring
Internal perisporium and the bottom land of second seal groove support.
6. switching valve as claimed in claim 5, it is characterised in that second seal groove is annular in shape, and along the valve element
It is radially arranged.
7. switching valve as claimed in claim 4, it is characterised in that the 3rd seal groove of ring-type is provided with the spacing ring,
3rd seal is arranged in the 3rd seal groove, and the end face of the 3rd seal and the spacing ring and described
The bottom land of 3rd seal groove is supported.
8. switching valve as claimed in claim 4, it is characterised in that the second seal is seal ring for piston hole, described
3rd seal is O-ring seal.
9. switching valve as claimed in claim 1, it is characterised in that the switching valve also includes rotating bar, the rotating bar with
Protuberance connection, and be provided with the spacing ring in arc chute, the rotating bar straight pin is installed, the cylinder
Pin is connected with the slide.
10. a kind of pair of essential oil filter, it is characterised in that it includes the first filter, the second filter and such as claim 1-9
Switching valve described in any one, the valve body is connected with first filter and second filter respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710372982.0A CN106979355A (en) | 2017-05-24 | 2017-05-24 | Switching valve and double essential oil filters |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710372982.0A CN106979355A (en) | 2017-05-24 | 2017-05-24 | Switching valve and double essential oil filters |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106979355A true CN106979355A (en) | 2017-07-25 |
Family
ID=59343284
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710372982.0A Pending CN106979355A (en) | 2017-05-24 | 2017-05-24 | Switching valve and double essential oil filters |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106979355A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112107916A (en) * | 2020-09-29 | 2020-12-22 | 杭州富阳万博空分设备有限公司 | Precision filter with switching function |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3403891A1 (en) * | 1984-02-04 | 1985-08-08 | GOK Regler- und Armaturen GmbH & Co KG, 5200 Siegburg | Shut-off and change-over valve with a cylindrical valve plug |
| CN2298386Y (en) * | 1997-04-12 | 1998-11-25 | 蚌埠压缩机总厂 | Four-way valve |
| CN203286029U (en) * | 2013-05-30 | 2013-11-13 | 飞翼股份有限公司 | Paste filling pipeline stop valve |
| CN203809776U (en) * | 2014-04-21 | 2014-09-03 | 天津诺威流体控制科技有限公司 | Multi-channel valve |
| CN105782511A (en) * | 2016-05-09 | 2016-07-20 | 南京福碧源环境技术有限公司 | Combined runner switching valve |
| CN206175729U (en) * | 2016-11-01 | 2017-05-17 | 路达(厦门)工业有限公司 | Three -way switch valve structure |
| CN206918328U (en) * | 2017-05-24 | 2018-01-23 | 嘉陵江亭子口水利水电开发有限公司 | Switching valve and double essential oil filters |
-
2017
- 2017-05-24 CN CN201710372982.0A patent/CN106979355A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3403891A1 (en) * | 1984-02-04 | 1985-08-08 | GOK Regler- und Armaturen GmbH & Co KG, 5200 Siegburg | Shut-off and change-over valve with a cylindrical valve plug |
| CN2298386Y (en) * | 1997-04-12 | 1998-11-25 | 蚌埠压缩机总厂 | Four-way valve |
| CN203286029U (en) * | 2013-05-30 | 2013-11-13 | 飞翼股份有限公司 | Paste filling pipeline stop valve |
| CN203809776U (en) * | 2014-04-21 | 2014-09-03 | 天津诺威流体控制科技有限公司 | Multi-channel valve |
| CN105782511A (en) * | 2016-05-09 | 2016-07-20 | 南京福碧源环境技术有限公司 | Combined runner switching valve |
| CN206175729U (en) * | 2016-11-01 | 2017-05-17 | 路达(厦门)工业有限公司 | Three -way switch valve structure |
| CN206918328U (en) * | 2017-05-24 | 2018-01-23 | 嘉陵江亭子口水利水电开发有限公司 | Switching valve and double essential oil filters |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112107916A (en) * | 2020-09-29 | 2020-12-22 | 杭州富阳万博空分设备有限公司 | Precision filter with switching function |
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Inventor after: Bai Bin Inventor after: Qi Xianrong Inventor after: He Hu Inventor after: Ma Xingfa Inventor after: He Danxin Inventor after: He Xingen Inventor before: Ma Xingfa Inventor before: Qi Xianrong Inventor before: He Danxin |
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