CN109027322A - Two-position four-way valve - Google Patents
Two-position four-way valve Download PDFInfo
- Publication number
- CN109027322A CN109027322A CN201811111757.2A CN201811111757A CN109027322A CN 109027322 A CN109027322 A CN 109027322A CN 201811111757 A CN201811111757 A CN 201811111757A CN 109027322 A CN109027322 A CN 109027322A
- Authority
- CN
- China
- Prior art keywords
- valve
- runner
- pressed joint
- deck
- valve rod
- 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.)
- Granted
Links
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
- F16K11/10—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with two or more closure members not moving as a unit
- F16K11/14—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with two or more closure members not moving as a unit operated by one actuating member, e.g. a handle
- F16K11/16—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with two or more closure members not moving as a unit operated by one actuating member, e.g. a handle which only slides, or only turns, or only swings in one plane
- F16K11/161—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with two or more closure members not moving as a unit operated by one actuating member, e.g. a handle which only slides, or only turns, or only swings in one plane only slides
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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
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/32—Details
- F16K1/34—Cutting-off parts, e.g. valve members, seats
- F16K1/36—Valve members
- F16K1/38—Valve members of conical shape
-
- 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
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/32—Details
- F16K1/34—Cutting-off parts, e.g. valve members, seats
- F16K1/46—Attachment of sealing rings
-
- 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
- F16K27/00—Construction of housing; Use of materials therefor
- F16K27/02—Construction of housing; Use of materials therefor of lift valves
- F16K27/0263—Construction of housing; Use of materials therefor of lift valves multiple way valves
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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
- F16K35/00—Means to prevent accidental or unauthorised actuation
Abstract
The invention discloses a kind of two-position four-way valves, including valve seat and interconnecting piece, runner I and runner II are equipped in valve seat, the inner cavity being equipped with inside runner II and interconnecting piece is connected to, valve deck is arranged in valve seat upper surface, lower end surface is equipped with blow vent I and blow vent II, valve rod I and pressed joint I are provided in runner I, valve rod II and pressed joint II are provided in runner II, two pressed joint one end are respectively fixedly connected in corresponding runner, the outer valve seat that stretches out is located in valve deck two pressed joint other ends respectively, and it is slidably connected with valve deck, valve rod I and valve rod II are arranged in respectively in corresponding pressed joint, the outer valve seat that stretches out is located in valve deck respectively for valve rod I and II one end of valve rod, and it is fixedly connected with valve deck, limited block is set between pressed joint I and pressed joint II.The present invention is alternative to carry out flow control using two independent shut-off valves, and easy to use, and sealing effect is good, and overall structure is simple, improves efficiency, eliminates the possibility of faulty operation.
Description
Technical field
The present invention relates to valve field, in particular to a kind of two-position four-way valve.
Background technique
Currently, being provided in the electronic type drilling cuttings desorption of mash gas parameter determinator for being used to detect coal mine gas
Shut-off valve controls gas flow with realizing in analyzer.Two independent shut-off valves are generallyd use in the prior art
Air flow rate control is carried out, however uses two independent shut-off valves, needs respectively to operate two shut-off valves, operation sequence
It is cumbersome, it is not convenient to use, the operation order of the operation or two shut-off valves that can many times forget some shut-off valve is got wrong and surveyed
Invalid data out, is less useful for rapid operation, and low efficiency is error-prone.
Summary of the invention
In view of this, the purpose of the present invention is to provide a kind of two-position four-way valve, it is alternative to use two independent cut-offs
Valve carries out flow control, and easy to use, and sealing effect is good, and overall structure is simple, improves efficiency, eliminates faulty operation
It may.
Two-position four-way valve of the invention including valve seat and is set to connection of the valve seat side for connecting with external air supply source
Portion is transversely equipped with for the runner I for flow of ambient air and the gas source for providing for external air supply source side by side in the valve seat
The inner cavity being equipped with inside the runner II of circulation, the runner II and interconnecting piece is connected to, and the upper surface of the valve seat is provided with valve deck,
The lower end surface of valve seat is equipped with the blow vent I being connected to runner I and the blow vent II being connected to runner II, setting in the runner I
There are the valve rod I for controlling the opening and closing of runner I and the pressed joint I for installing valve rod I, is provided in the runner II for controlling
The valve rod II that runner II processed is opened and closed and the pressed joint II for installing valve rod II, the pressed joint I and pressed joint II
One end is respectively fixedly connected in corresponding runner, stretches out valve seat outside the other end difference of pressed joint I and pressed joint II
It is slidably connected in valve deck, and with valve deck, the valve rod I and valve rod II are slidably arranged in corresponding respectively in axial direction
In pressed joint, one end of the valve rod I and valve rod II is located in corresponding runner, valve rod I and valve rod II it is another
The outer valve seat that stretches out is located in valve deck respectively at end, and is fixedly connected with valve deck, and the pressed joint I and pressed joint II stretch out valve seat
Limited block is provided between outer one end, the limited block upper end is located in valve deck and is slidably connected with valve deck, on the valve deck
It is provided with for driving valve deck to slide and to the locking mechanism of valve deck positioning.
Further, the locking mechanism is two groups, is symmetricly set on valve deck two sides, every group of locking mechanism includes positioning wedged block
With spring I, the positioning wedged block middle part is hingedly fixed on valve deck side wall, and upper end and the valve of positioning wedged block is arranged in the spring I
Between lid side wall, the lower end of the positioning wedged block is equipped with block tongue, the side wall of the valve deck be equipped with for across via hole, the limit
Position block upper end outer wall is equipped with the gap slot cooperated with block tongue.
Further, the valve seat and interconnecting piece are integrally formed, and the runner I and runner II are set along valve seat is longitudinally through
It sets, the inner cavity of the interconnecting piece is longitudinally disposed along interconnecting piece and top is opened wide, and leads between the runner II and the inner cavity of interconnecting piece
Cross the connection of venthole I.
Further, it is arranged with spring II respectively on one end outer wall that the valve rod I and valve rod II are located in corresponding runner,
The both ends of each spring II are born against between corresponding runner and pressed joint.
Further, the valve rod I and valve rod II are located at one end in corresponding runner and are respectively equipped with matches with corresponding runner
The spool of conjunction is provided with sealing ring I between each spool and corresponding runner.
Further, the side wall of the pressed joint I is equipped with the venthole II being connected to runner I, the venthole II
Inlet end is connected to runner I, and outlet side is located at one end on I side wall of pressed joint close to valve deck.
Further, sealing ring II is provided between the valve rod II and pressed joint II.
Further, the fastening connector being fixedly connected respectively with corresponding valve rod is provided in the valve deck, the fastening connects
Head is fixedly connected in valve deck.
Further, annular positioning groove, the limited block are respectively equipped on the outer wall of the pressed joint I and pressed joint II
The annular convex platform of annular positioning groove cooperation is equipped with close to the outer wall of lower end.
Further, there are clearance spaces between the limited block upper end and valve deck roof.
Beneficial effects of the present invention: two-position four-way valve of the invention is provided in valve seat by setting valve seat and attachment base
The inner cavity being equipped with inside runner I and runner II, runner II and interconnecting piece is connected to, and the upper surface of valve seat is provided with valve deck, valve seat
Lower end surface is equipped with the blow vent I being connected to runner I and the blow vent II being connected to runner II, is provided in runner I for controlling
The valve rod I and pressed joint I for installing valve rod I that runner I is opened and closed are provided with for controlling the opening and closing of runner II in runner II
One end of valve rod II and pressed joint II for installing valve rod II, pressed joint I and pressed joint II be respectively fixedly connected in
In corresponding runner, the outer valve seat that stretches out is located in valve deck the other end of pressed joint I and pressed joint II respectively, and and valve deck
It is slidably connected, valve rod I and valve rod II are slidably arranged in respectively in axial direction in corresponding pressed joint, valve rod I and valve rod
II one end is located in corresponding runner, and the outer valve seat that stretches out is located in valve deck the other end of valve rod I and valve rod II respectively,
And be fixedly connected with valve deck, limited block, limited block are provided between one end that pressed joint I and pressed joint II stretch out outside valve seat
Upper end is located in valve deck and is slidably connected with valve deck, is provided on the valve deck for driving valve deck to slide and to valve deck positioning
Locking mechanism drives valve deck movement by locking mechanism, and valve deck drives two valve rods to move simultaneously, while realizing two valve rods
It opens or closes, and can be locked by position of the locking mechanism to two valve rods, it is safe and reliable.Therefore, of the invention
Alternative to carry out flow control using two independent shut-off valves and easy to use, sealing effect is good, and overall structure is simple, mentions
High efficiency, eliminates the possibility of faulty operation.
Detailed description of the invention
The invention will be further described with reference to the accompanying drawings and examples:
Fig. 1 is the structural schematic diagram that the present invention is in close state；
Fig. 2 is the partial sectional view of Fig. 1；
Fig. 3 is present invention structural schematic diagram in the open state；
Fig. 4 is the partial sectional view of Fig. 3；
Fig. 5 is the stereoscopic schematic diagram that the present invention is in close state；
Fig. 6 is present invention stereoscopic schematic diagram in the open state.
Specific embodiment
It is as shown in Figures 1 to 6: the two-position four-way valve of the present embodiment, including valve seat 3 and be set to 3 side of valve seat for
The interconnecting piece of external air supply source connection is transversely equipped with for the runner I for flow of ambient air and for supplying side by side in the valve seat 3
The inner cavity that the runner II for the gas source circulation that external air supply source provides, the runner II and interconnecting piece inside are equipped with is connected to, the valve
The upper surface of seat 3 is provided with valve deck 7, and the lower end surface of valve seat 3 is equipped with the blow vent I 15 being connected to runner I and is connected to runner II
Blow vent II 14, the valve rod I 5 for controlling the opening and closing of runner I and the compression for installing valve rod I 5 are provided in the runner I
Connector I 6 is provided with the valve rod II 10 for controlling the opening and closing of runner II and the compression for installing valve rod II 10 in the runner II
One end of connector II 11, the pressed joint I 6 and pressed joint II 11 is respectively fixedly connected in corresponding runner, is compressed
The outer valve seat 3 that stretches out is located in valve deck 7 other end of connector I 6 and pressed joint II 11 respectively, and is slidably connected with valve deck 7, described
Valve rod I 5 and valve rod II 10 are slidably arranged in respectively in axial direction in corresponding pressed joint, the valve rod I 5 and valve rod II
10 one end is located in corresponding runner, and the outer valve seat 3 that stretches out is located at valve to the other end of valve rod I 5 and valve rod II 10 respectively
It in lid 7, and is fixedly connected with valve deck 7, is arranged between one end that the pressed joint I 6 and pressed joint II 11 stretch out outside valve seat 3
There is limited block 9,9 upper end of limited block is located in valve deck 7 and is slidably connected with valve deck 7, is provided on the valve deck 7 for band
Dynamic locking mechanism valve deck 7 sliding and positioned to valve deck 7 drives valve deck 7 to move by locking mechanism, and valve deck 7 drives two valves
Bar moves simultaneously, opens or closes while realizing two valve rods, and can be carried out by position of the locking mechanism to two valve rods
Locking, eliminates the possibility of faulty operation.
In the present embodiment, the locking mechanism is two groups, is symmetricly set on 7 two sides of valve deck, and every group of locking mechanism includes fixed
Position fixture block 17 and spring I 16 is hingedly fixed on 7 side wall of valve deck in the middle part of the positioning wedged block 17, the setting of spring I 16 positioning
Between 7 side wall of upper end and valve deck of fixture block 17, the lower end of the positioning wedged block 17 is equipped with block tongue, sets on the side wall of the valve deck 7
Have for across via hole, the 9 upper end outer wall of limited block is equipped with the gap slot that cooperates with block tongue；When valve deck 7 is in close state
When, the block tongue of positioning wedged block 17 is located in the via hole of valve deck 7, forms positioning；When valve deck 7 is in the open state, positioning wedged block
The via hole that 17 block tongue passes through valve deck 7 is located in gap slot, forms positioning.
In the present embodiment, the valve seat 3 and interconnecting piece are integrally formed, and the runner I and runner II are passed through along 3 longitudinal direction of valve seat
Logical setting, the inner cavity of the interconnecting piece is longitudinally disposed along interconnecting piece and top is opened wide, the inner cavity of the runner II and interconnecting piece it
Between be connected to by venthole I 13, realize that external air supply source provides gas source to runner II.
In the present embodiment, it is arranged with respectively on one end outer wall that the valve rod I 5 and valve rod II 10 are located in corresponding runner
Spring II 2, the both ends of each spring II 2 are born against between corresponding runner and pressed joint, and valve rod is led in realization
To and return.
In the present embodiment, the valve rod I 5 and valve rod II 10 be located at one end in corresponding runner be respectively equipped with it is corresponding
The spool of runner cooperation, realization open or close runner, and sealing ring I is provided between each spool and corresponding runner
1, realize the sealing to spool.
In the present embodiment, the side wall of the pressed joint I 6 is equipped with the venthole II 4 being connected to runner I, the ventilation
The inlet end in hole II 4 is connected to runner I, and outlet side is located at one end on I 6 side wall of pressed joint close to valve deck 7, realizes that atmosphere connects
It is logical；When valve deck is in close state, venthole II 4 can be closed by valve deck, when valve deck is in the open state, stream
Road I and venthole II 4 are communicated with the atmosphere.
In the present embodiment, it is provided with sealing ring II 12 between the valve rod II 10 and pressed joint II 11, to guarantee to seal
Effect.
In the present embodiment, the fastening connector 8 being fixedly connected respectively with corresponding valve rod is provided in the valve deck 7, it is described
Fastening connector 8 is fixedly connected in valve deck 7, and realization is connected and fixed with valve rod, mobile by the mobile band ovable valve stem of valve deck, is used
It is simple and convenient.
In the present embodiment, it is respectively equipped with annular positioning groove on the outer wall of the pressed joint I 6 and pressed joint II 11, institute
The annular convex platform that limited block 9 is equipped with annular positioning groove cooperation close to the outer wall of lower end is stated, annular convex platform and circular orientation are passed through
Slot matches, and realizes the positioning to limited block 9.
In the present embodiment, there are clearance spaces between 9 upper end of limited block and 7 roof of valve deck, to provide enough fortune
Dynamic space, guarantees the fluency used, easily facilitates use.
Finally, it is stated that the above examples are only used to illustrate the technical scheme of the present invention and are not limiting, although referring to compared with
Good embodiment describes the invention in detail, those skilled in the art should understand that, it can be to skill of the invention
Art scheme is modified or replaced equivalently, and without departing from the objective and range of technical solution of the present invention, should all be covered at this
In the scope of the claims of invention.
Claims (10)
1. a kind of two-position four-way valve, it is characterised in that: including valve seat and be set to valve seat side for connecting with external air supply source
Interconnecting piece, be transversely equipped with side by side for the runner I for flow of ambient air in the valve seat and for being provided for external air supply source
Gas source circulation runner II, the inner cavity being equipped with inside the runner II and interconnecting piece is connected to, and the upper surface of the valve seat is arranged
There is valve deck, the lower end surface of valve seat is equipped with the blow vent I being connected to runner I and the blow vent II being connected to runner II, the runner I
It is inside provided with the valve rod I for controlling the opening and closing of runner I and the pressed joint I for installing valve rod I, is provided in the runner II
Pressed joint II for controlling the valve rod II of the opening and closing of runner II and for installing valve rod II, the pressed joint I and compression connect
First II one end is respectively fixedly connected in corresponding runner, and the other end difference of pressed joint I and pressed joint II is overhanging
Valve seat is located in valve deck out, and is slidably connected with valve deck, and the valve rod I and valve rod II are slidably arranged in institute respectively in axial direction
In corresponding pressed joint, one end of the valve rod I and valve rod II is located in corresponding runner, valve rod I and valve rod II
The other end the outer valve seat that stretches out is located in valve deck respectively, and be fixedly connected with valve deck, the pressed joint I and pressed joint II are stretched
Limited block is provided between one end outside valve seat out, the limited block upper end is located in valve deck and is slidably connected with valve deck, described
It is provided on valve deck for driving valve deck to slide and to the locking mechanism of valve deck positioning.
2. two-position four-way valve according to claim 1, it is characterised in that: the locking mechanism is two groups, is symmetricly set on
Valve deck two sides, every group of locking mechanism include positioning wedged block and spring I, are hingedly fixed in valve deck side wall in the middle part of the positioning wedged block
On, the spring I is arranged between the upper end and valve deck side wall of positioning wedged block, and the lower end of the positioning wedged block is equipped with block tongue, described
The side wall of valve deck be equipped with for across via hole, limited block upper end outer wall is equipped with the gap slot that cooperates with block tongue.
3. two-position four-way valve according to claim 1, it is characterised in that: the valve seat and interconnecting piece are integrally formed, described
Runner I and runner II are along the longitudinally through setting of valve seat, and the inner cavity of the interconnecting piece is longitudinally disposed along interconnecting piece and top is opened wide,
It is connected between the runner II and the inner cavity of interconnecting piece by venthole I.
4. two-position four-way valve according to claim 1, it is characterised in that: the valve rod I and valve rod II are located at corresponding stream
Spring II is arranged on one end outer wall in road respectively, the both ends of each spring II, which are born against, to be connect in corresponding runner with compression
Between head.
5. two-position four-way valve according to claim 4, it is characterised in that: the valve rod I and valve rod II are located at corresponding stream
One end in road is respectively equipped with the spool with the cooperation of corresponding runner, is provided with sealing ring between each spool and corresponding runner
Ⅰ。
6. two-position four-way valve according to claim 1, it is characterised in that: the side wall of the pressed joint I is equipped with and stream
The venthole II that road I is connected to, the inlet end of the venthole II are connected to runner I, and outlet side, which is located on I side wall of pressed joint, to be leaned on
One end of nearly valve deck.
7. two-position four-way valve according to claim 1, it is characterised in that: be arranged between the valve rod II and pressed joint II
There is sealing ring II.
8. two-position four-way valve according to claim 1, it is characterised in that: be provided in the valve deck respectively with corresponding valve
The fastening connector that bar is fixedly connected, the fastening connector are fixedly connected in valve deck.
9. two-position four-way valve according to claim 1, it is characterised in that: the pressed joint I and pressed joint II it is outer
Annular positioning groove is respectively equipped on wall, the limited block is equipped with the convex annular of annular positioning groove cooperation close to the outer wall of lower end
Platform.
10. two-position four-way valve according to claim 1, it is characterised in that: between the limited block upper end and valve deck roof
There are clearance spaces.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811111757.2A CN109027322B (en) | 2018-09-24 | 2018-09-24 | Two-position four-way valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811111757.2A CN109027322B (en) | 2018-09-24 | 2018-09-24 | Two-position four-way valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109027322A true CN109027322A (en) | 2018-12-18 |
| CN109027322B CN109027322B (en) | 2019-07-02 |
Family
ID=64618189
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811111757.2A Active CN109027322B (en) | 2018-09-24 | 2018-09-24 | Two-position four-way valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109027322B (en) |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2240655Y (en) * | 1995-12-13 | 1996-11-20 | 陈运进 | Liquid raw material switching device |
| CN2625678Y (en) * | 2003-07-16 | 2004-07-14 | 单谟君 | Diaphragm electromagnetic valve |
| CN101096999A (en) * | 2006-06-26 | 2008-01-02 | 贵州精高电力物资有限公司 | Double-core double-seat wash-free stop valve |
| CN201050515Y (en) * | 2007-04-05 | 2008-04-23 | 中日流体传动股份有限公司 | Change valve device for air pressure |
| CN201651523U (en) * | 2010-04-19 | 2010-11-24 | 镇海石化建安工程有限公司 | Actuating mechanism capable of simultaneously opening and closing two valves |
| CN201908884U (en) * | 2010-12-31 | 2011-07-27 | 上海强田流体技术有限公司 | Valve stem linkage control device for multi-way valve |
| CN104160119A (en) * | 2012-03-09 | 2014-11-19 | 瓦锡兰芬兰有限公司 | Hydraulic actuator and gas exchange valve arrangement |
| CN205136682U (en) * | 2015-11-03 | 2016-04-06 | 上海森徳科技发展有限公司 | Medical parallelly connected valve |
| JP2016114023A (en) * | 2014-12-17 | 2016-06-23 | 三菱日立パワーシステムズ株式会社 | Steam valve device |
| CN106763862A (en) * | 2016-12-26 | 2017-05-31 | 梅州市理想阀门技术有限公司 | Double spheroid single-direction metal sealing face ball valves |
-
2018
- 2018-09-24 CN CN201811111757.2A patent/CN109027322B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2240655Y (en) * | 1995-12-13 | 1996-11-20 | 陈运进 | Liquid raw material switching device |
| CN2625678Y (en) * | 2003-07-16 | 2004-07-14 | 单谟君 | Diaphragm electromagnetic valve |
| CN101096999A (en) * | 2006-06-26 | 2008-01-02 | 贵州精高电力物资有限公司 | Double-core double-seat wash-free stop valve |
| CN201050515Y (en) * | 2007-04-05 | 2008-04-23 | 中日流体传动股份有限公司 | Change valve device for air pressure |
| CN201651523U (en) * | 2010-04-19 | 2010-11-24 | 镇海石化建安工程有限公司 | Actuating mechanism capable of simultaneously opening and closing two valves |
| CN201908884U (en) * | 2010-12-31 | 2011-07-27 | 上海强田流体技术有限公司 | Valve stem linkage control device for multi-way valve |
| CN104160119A (en) * | 2012-03-09 | 2014-11-19 | 瓦锡兰芬兰有限公司 | Hydraulic actuator and gas exchange valve arrangement |
| JP2016114023A (en) * | 2014-12-17 | 2016-06-23 | 三菱日立パワーシステムズ株式会社 | Steam valve device |
| CN205136682U (en) * | 2015-11-03 | 2016-04-06 | 上海森徳科技发展有限公司 | Medical parallelly connected valve |
| CN106763862A (en) * | 2016-12-26 | 2017-05-31 | 梅州市理想阀门技术有限公司 | Double spheroid single-direction metal sealing face ball valves |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109027322B (en) | 2019-07-02 |
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