CN107061764A - Moment shut-off valve - Google Patents
Moment shut-off valve Download PDFInfo
- Publication number
- CN107061764A CN107061764A CN201710443962.8A CN201710443962A CN107061764A CN 107061764 A CN107061764 A CN 107061764A CN 201710443962 A CN201710443962 A CN 201710443962A CN 107061764 A CN107061764 A CN 107061764A
- Authority
- CN
- China
- Prior art keywords
- valve
- button
- shut
- support member
- 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
- 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
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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
- F16K1/46—Attachment of sealing rings
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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
- F16K27/00—Construction of housing; Use of materials therefor
- F16K27/12—Covers for housings
-
- 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
-
- 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
-
- 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
- F16K41/00—Spindle sealings
- F16K41/02—Spindle sealings with stuffing-box ; Sealing rings
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Mechanically-Actuated Valves (AREA)
- Preventing Unauthorised Actuation Of Valves (AREA)
Abstract
The present invention relates to a kind of moment shut-off valve, including valve body and valve rod, the valve body is provided with upper chamber's connector, lower chambers connector and valve rod installing port, valve seat is provided with the valve pocket of the valve body, bonnet is installed with the valve rod installing port, the valve rod passes through the valve rod hole on the bonnet, its lower end is connected with the flap that shut-off valve sealing pair is constituted with the valve seat, the top of the bonnet is provided with manipulation base, provided with the first fixed support member in the housing of the manipulation base, second support member, first support member is provided with the vertical through holes as support member valve rod hole, the valve rod passes through the support member valve rod hole, its top is provided with shut-off button, vertically slidable be connected with is released the button on second support member.Traditional turnstile or handle operation are changed to the push-botton operation of rectilinear direction by the present invention, reduce the time used in operation in the case where valve rod moves identical displacement, easy to operate and can realize moment handoff functionality.
Description
Technical field
It is more particularly to a kind of to realize the quick moment shut-off opened with break-in facility the present invention relates to a kind of shut-off valve
Valve.
Background technology
More than shut-off valve of the prior art by the way of rotation hand wheel or handle, open and block being required for one to delay
Slowly the process changed, reacts slow and inconvenient operation, while also increasing the possibility of leakage, sealing is not good enough；On the other hand
There is the risk touched by mistake in exposed handwheel or handle.
The content of the invention
In order to solve the above technical problems, the invention provides a kind of moment shut-off valve, can realize and quickly open and block
Function, and can be prevented effectively from and touch risk by mistake.
The technical scheme is that：
A kind of moment shut-off valve, including valve body and valve rod, the valve body are provided with upper chamber's connector, lower chambers connector and valve rod
It is provided with installing port, the valve pocket of the valve body on valve seat, the valve rod installing port and is installed with bonnet, the valve rod passes through institute
The valve rod hole on bonnet is stated, its lower end is connected with the flap that shut-off valve sealing pair is constituted with the valve seat, the top of the bonnet
Provided with manipulation base, supported in the housing of the manipulation base provided with the first fixed support member, the second support member, described first
Part is provided with the vertical through holes as support member valve rod hole, and the valve rod passes through the support member valve rod hole, and its top is provided with
Turn off to radially slide on button, first support member and be connected with push rod and provided with the precompressed for pushing away the push rod to radially inner side
The push rod spring of contracting, the valve rod is provided with vertically slidable on the locating groove supporting with the push rod, second support member
The back-moving spring released the button and for reset of releasing the button is connected with, second support member, which is provided with, to be used to open with described
The column that button vertical line is slidably connected, the pore provided with open at its lower end of releasing the button are opened, the column is plugged on described open
Open in the pore of button, coordinate with the gap of releasing the button, the bottom released the button is provided with what is extended radially inwardly out
Push rod is opened, the inner side end of the shut-off push rod is inclined-plane upward, and the inner side end of the unlatching push rod is directed downwardly oblique
Face, the inner side end of the shut-off push rod is located at the top of the inner side end of the unlatching push rod.
Beneficial effects of the present invention are：
Due to using shut-off button and realization of releasing the button block with it is open-minded, it is easy to operate and be swift in response, can effectively prevent
The flow loss caused in handoff procedure, and effect can be well sealed；Because the shut-off button and the unlatching are pressed
Button is located in the upper lid, it is possible to prevente effectively from touch by mistake, it is ensured that using effect.
Brief description of the drawings
Fig. 1 is embodiment of the present invention sectional view；
Fig. 2 is shown in Fig. 1 of the present invention II partial enlarged drawing；
Fig. 3 is embodiment of the present invention valve body sectional view.
Embodiment
The present invention will be further described below in conjunction with the accompanying drawings.
As shown in Figure 1, Figure 2 and Figure 3, the present invention relates to a kind of moment shut-off valve, including valve body 18 and valve rod 4, the valve
Body 18 is provided with upper chamber's connector 33, lower chambers connector 31 and valve rod installing port 32, the valve pocket of the valve body 18 and is provided with valve
Bonnet 19 is installed with seat 34, the valve rod installing port 32, the valve rod 4 passes through the valve rod hole on the bonnet 19, its
Lower end is connected with the flap that shut-off valve sealing pair is constituted with the valve seat 34, and the top of the bonnet 19 is provided with manipulation base 13,
Provided with the first fixed support member, the second support member in the housing of the manipulation base 13, first support member, which is provided with, to be used
Make the vertical through holes of support member valve rod hole, the valve rod passes through the support member valve rod hole, its top is provided with shut-off button 3,
To allow to be connected with push rod 8 relative to the movable connection method that the first support member is radially slided and be provided with first support member
The precompressed push rod spring 7 that the push rod 8 is pushed away to radially inner side, the valve rod 4 is provided with and the push rod is supporting determines
Position neck, the height of the locating groove is the height blocked just by the push rod 8 under valve off state, described second
It is vertically slidable on support member to be connected with release the button 2 and the back-moving spring 20 for reset of releasing the button, second support
Part is provided with the column for being used to be slidably connected with the vertical line of releasing the button, 2 pores provided with open at its lower end of releasing the button,
The column be plugged on it is described release the button 2 pore in, coordinate with 2 gaps of releasing the button, it is described to release the button under 2
Portion is provided with the unlatching push rod 6 extended radially inwardly out, and the inner side end of the shut-off push rod is inclined-plane upward, and the unlatching is pushed away
The inner side end of bar is inclined-plane directed downwardly, and the inner side end of the shut-off push rod is located at the upper of the inner side end of the unlatching push rod
Side, i.e., in the off case, at least a portion in the inner side end for opening push rod are located at the inner side of the shut-off push rod
The underface of end face is in other words on movement locus, and during the unlatching push rod is moved down, its inner side end can be proper
On the inner side end for being pressed in shut-off push rod well.
In use, can be water inlet with upper chamber's connector 33, connection water inlet side ducts be connected with the lower chambers
Interface 31 is delivery port, connects water outlet side ducts, presses shut-off button, and valve rod drives the flap to move at the valve seat 34,
Thus the pressure differential of upper and lower cavity, the sealing surface of flap and sealing surface of seat are tightly pressed together, and are cut off through valve seat central through hole
Medium flow channels, valve is closed, and is pressed and is released the button, and it is described that the resetting-mechanism set on valve rod overcomes upper and lower cavity pressure differential to drive
Valve rod 4 is moved up, and then drives the flap to moving up, valve opening.
Traditional turnstile or handle operation are changed to the push-botton operation of rectilinear direction by the present invention, same in valve rod mobile phase
Displacement in the case of reduce time used in operation, it is easy to operate and moment handoff functionality can be realized.
The bonnet 19 is threadedly attached in the top of valve rod installing port 32, and the lower outer circumferential face of bonnet 19 is set
There is chamfering, the bonnet 19 can be dismantled freely, facilitate the maintenance of valve inner or change inner components.Can be as needed
The bonnet 19 is set to stairstepping, different ladder sections are designed as different shapes, such as by the foot one of bonnet 19
Section is set to smooth cylindrical in order to which the bonnet is loaded in the valve rod installing port 32, and the smooth cylindrical lower end is cylindrical
Side face sets chamfering, on the one hand convenient to install, and on the other hand can also prevent plowing from valve body, be set close to the smooth cylindrical top
Being calculated as shape of threads is used to connect the valve rod installing port 32, then one section above is designed as regular hexagon structure to use spanner
Fastened or dismantled Deng instrument.
Preferably, the valve pocket is divided into upper chamber and lower chambers, the upper chamber and the cavity of resorption by the valve seat 34
Room is connected by the center through hole of the valve seat 34, and the flap is located in the upper chamber.
Preferably, cover plate 5 is additionally provided with the manipulation base, the cover plate 5 is located at first support member and second
The top of support member, the cover plate 5 is provided with the vertical through holes as shut-off button hole and the vertical through holes as hole of releasing the button,
The shut-off button 3 passes through the shut-off button hole, exposes from the upper surface of the cover plate 5, described to release the button 2 described in
Release the button hole, expose from the upper surface of the cover plate 5.
Preferably, lid 1 is additionally provided with the manipulation base 13, the upper lid 1 can the company of unlatching with the manipulation base 13
Connect, it is described to release the button in 2 and the cavity for turning off button 3 positioned at the upper lid 1 with the cover plate 5 formation.
The upper lid 1 be preferably arc shell, the shut-off button 3 and it is described release the button 2 be located at the upper lid 1 and institute
In the arc space for stating the composition of cover plate 5, valve inner structure can either be protected not to be destroyed, can be prevented effectively to touch by mistake again and cause
Current are leaked or blocked.
Preferably, the inner of the push rod 8 is provided with prong like, and the supporting plate, which is provided with, can limit the push rod 8
The top rod limiting structure radially slided can only be made.
Preferably, the back-moving spring 20 uses precompressed helical spring, is set on the column, its upper end and institute
2 contacts of releasing the button are stated, lower end is contacted with the second support member, can be on column and the bottom released the button sets suitable platform
Shoulder structure realizes back-moving spring and the second support member and the connection released the button.
Preferably, the inner side end of the inner side end for turning off push rod and the unlatching push rod can be plane, bus
The cylinder vertical with glide direction is combined by the plane cylinder vertical with glide direction with bus, and this cylindrical structure can
Shut-off push rod is pushed away with realizing more effectively and neatly, it is to avoid stuck phenomenon occur.
Preferably, the flap includes valve rod base 15 and gasket seal 16, and the valve rod base 15 is consolidated with the valve rod 4
Fixed connection, the gasket seal 16 is located in the groove of the lower section of valve rod base 15 and fastened by nut 22, the sealing
Flat shim 17 can be loaded between pad 16 and the nut 22, can by using the structure of flat shim 17 plus clamp nut 22
Further to fix the gasket seal, it is ensured that sealing effectiveness, increase the service life.
When the valve rod 4 is moved down, it is close that the gasket seal 16 is pressed on the valve seat by the valve rod base 15
Seal in plane 35, the gasket seal 16 produces plastic deformation so as to tight with the valve base sealing plane 35 under the effect of the pressure
It is closely connected to be combined, so as to realize sealing effectiveness.
Preferably, at least provided with the first shoulder hole and the second shoulder hole inside the bonnet 19, first shoulder hole is straight
Footpath is more than the center through hole, and the second ladder hole position is below first shoulder hole and diameter is more than first ladder
Hole, the first shoulder hole inner seal ring 9, the one side of sealing ring 9 prevents the leakage of internal liquid, on the other hand also prevents
The entrance of external contaminants, the sealing ring 9 preferred O-ring seal, small volume and easy to use, in second shoulder hole
Packing ring 10 provided with interference fit, the packing ring 10 forms the positioning action to the sealing ring 9, prevents the packing ring 9 axially
Amount of movement is excessive and loses sealing function, and the packing ring 10 coordinates with the gap of valve rod 4, and the movement of the valve rod 4 is not influenceed.
Preferably, the position on the valve rod 4 less than the packing ring 10 is provided with installation in annular groove, the annular groove
Have a jump ring 11, the lower section of jump ring 11 is provided with the backing plate 12 coordinated with the gap of valve rod 4, the backing plate 12 be provided with it is described
The groove that jump ring 11 coordinates, the depth of the groove is not less than the thickness of the jump ring 11, and the bonnet bottom is provided with baffle plate 14,
Corresponding site is provided with valve rod provided with the flange for installing the baffle plate on the valve body 18 between the backing plate 12 and the baffle plate 14
Pretensioned spring 21.
Under valve opening state the upper end of backing plate 12 the valve rod pretensioned spring 21 elastic force effect under with it is described
The bottom of packing ring 10 is contacted, and during pressing shut-off button 3, the valve rod 4 is moved down, and promotes the jump ring 11 in the annular groove
Move downwardly together, the jump ring 11 promotes the backing plate 12 to overcome spring force to move down；During press-started button 2, spring
Push the dynamic backing plate 12 to move up, the backing plate 12 promotes the jump ring 11, the jump ring 11 promotes the valve rod 4 upward
Mobile, until the upper end of backing plate 12 contacts the packing ring 10 again, now valve rod 4 stops movement, and valve is fully opened.
Preferably, it is described shut-off button 3 and it is described release the button 2 be provided with annular hollow structure, to save raw material, and
Mitigate weight.
It is disclosed by the invention it is each preferably with optional technological means, unless otherwise indicated and one preferably or can selecting technology hand
Section is that outside the further restriction of another technological means, can form some different technical schemes in any combination.
Claims (10)
1. a kind of moment shut-off valve, it is characterised in that including valve body and valve rod, the valve body is provided with upper chamber's connector, lower chambers
It is provided with connector and valve rod installing port, the valve pocket of the valve body on valve seat, the valve rod installing port and is installed with bonnet, institute
Valve rod is stated through the valve rod hole on the bonnet, its lower end is connected with the flap that shut-off valve sealing pair is constituted with the valve seat, institute
The top of bonnet is stated provided with manipulation base, the housing of the manipulation base is interior provided with the first fixed support member, the second support member,
First support member is provided with the vertical through holes as support member valve rod hole, and the valve rod passes through the support member valve rod hole,
Its top is provided with shut-off button, first support member to radially slide and is connected with push rod and is provided with the push rod to radially
The precompressed push rod spring that inner side is pushed away, the valve rod is provided with the locating groove supporting with the push rod, second support
Vertically slidable on part to be connected with the back-moving spring released the button and for reset of releasing the button, second support member is provided with
For the column being slidably connected with the vertical line of releasing the button, the pore provided with open at its lower end of releasing the button, the column
It is plugged in the pore released the button, coordinates with the gap of releasing the button, the bottom released the button is provided with radially
The unlatching push rod extended internally out, the inner side end of the shut-off push rod is inclined-plane upward, the medial extremity of the unlatching push rod
Face is inclined-plane directed downwardly, and the inner side end of the shut-off push rod is located at the top of the inner side end of the unlatching push rod.
2. moment shut-off valve according to claim 1, it is characterised in that the valve pocket is divided into upper chamber by the valve seat
And lower chambers, the upper chamber connected with the lower chambers by the center through hole of the valve seat, and the flap is located on described
In chamber.
3. moment shut-off valve according to claim 2, it is characterised in that cover plate, the lid are additionally provided with the manipulation base
Plate is located at the top of first support member and the second support member, and the cover plate is provided with the vertical through holes for being used as shut-off button hole
With the vertical through holes as hole of releasing the button, the shut-off button passes through the shut-off button hole, from the upper surface of the cover plate
Expose, it is described to release the button through the hole of releasing the button, expose from the upper surface of the cover plate.
4. moment shut-off valve according to claim 3, it is characterised in that be additionally provided with lid on the manipulation base, it is described on
Lid can be opened with the manipulation base and is connected, and described release the button is located at the upper lid and the cover plate shape with the shut-off button
Into cavity in.
5. moment shut-off valve according to claim 4, it is characterised in that the inner of the push rod is provided with prong like, described
Supporting plate, which is provided with, can limit the top rod limiting structure that the push rod can only be made to radially slide.
6. moment shut-off valve according to claim 5, it is characterised in that the back-moving spring uses precompressed spiral bullet
Spring, is set on the column, and its upper end is contacted with described release the button, and lower end is contacted with the second support member, can be in column
Bottom that is upper and releasing the button sets the connection that suitable shoulder structure is realized back-moving spring and the second support member and released the button.
7. moment shut-off valve according to claim 6, it is characterised in that the inner side end of the shut-off push rod and described open
Opening the inner side end of push rod can be hung down for plane, the bus cylinder vertical with glide direction or by plane and bus and glide direction
Straight cylinder is combined, and this cylindrical structure more effectively and can be realized neatly to be pushed away to shut-off push rod, it is to avoid occurred
Stuck phenomenon.
8. according to any described moment shut-off valves of claim 1-7, it is characterised in that the flap includes valve rod base and close
Gasket, the valve rod base is fixedly connected with the valve rod, and the gasket seal is located at the groove below the valve rod base
It is interior and fastened by nut.
9. moment shut-off valve according to claim 8, it is characterised in that at least provided with the first shoulder hole inside the bonnet
With the second shoulder hole, the first ladder bore dia is more than the center through hole, and the second ladder hole position is in first rank
Below terraced hole and diameter is more than in first shoulder hole, the first shoulder hole inner seal ring, second shoulder hole and is provided with
The packing ring of interference fit, the packing ring coordinates with the valve lever clearance.
10. moment shut-off valve according to claim 9, it is characterised in that the position on the valve rod less than the packing ring is set
Have and jump ring be installed in annular groove, the annular groove, the backing plate coordinated with the valve lever clearance is provided with below the jump ring,
The backing plate is provided with the groove coordinated with the jump ring, and the depth of the groove is not less than the thickness of the jump ring, the valve
Base portion is provided with baffle plate, on the valve body corresponding site provided with the flange for installing the baffle plate, the backing plate and the baffle plate it
Between be provided with valve rod pretensioned spring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710443962.8A CN107061764B (en) | 2017-06-13 | 2017-06-13 | Moment shut-off valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710443962.8A CN107061764B (en) | 2017-06-13 | 2017-06-13 | Moment shut-off valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107061764A true CN107061764A (en) | 2017-08-18 |
| CN107061764B CN107061764B (en) | 2019-05-21 |
Family
ID=59593913
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710443962.8A Active CN107061764B (en) | 2017-06-13 | 2017-06-13 | Moment shut-off valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107061764B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108662166A (en) * | 2018-07-14 | 2018-10-16 | 温州市欧睿阀门有限公司 | It is a kind of can quickly either on or off shut-off valve |
| CN109882651A (en) * | 2019-03-15 | 2019-06-14 | 汉工阀门股份有限公司 | A kind of high-voltage high-speed shut-off valve |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2442022A1 (en) * | 1973-09-25 | 1975-04-03 | Pierre Boillat | TAP WITH PUSH |
| CN201212577Y (en) * | 2008-06-24 | 2009-03-25 | 袁勇 | Overpressure and decompression emergency cutter |
| CN205824285U (en) * | 2016-06-24 | 2016-12-21 | 宁波佳尔灵气动机械有限公司 | A kind of duplex hand-operated valve |
| CN106763934A (en) * | 2016-12-20 | 2017-05-31 | 嘉兴爱克斯机械技术有限公司 | The lift check and cut-off combination valve of dual drive quick closedown |
| CN207145710U (en) * | 2017-06-13 | 2018-03-27 | 北京艾迪西暖通科技有限公司 | Moment shut-off valve |
-
2017
- 2017-06-13 CN CN201710443962.8A patent/CN107061764B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2442022A1 (en) * | 1973-09-25 | 1975-04-03 | Pierre Boillat | TAP WITH PUSH |
| CN201212577Y (en) * | 2008-06-24 | 2009-03-25 | 袁勇 | Overpressure and decompression emergency cutter |
| CN205824285U (en) * | 2016-06-24 | 2016-12-21 | 宁波佳尔灵气动机械有限公司 | A kind of duplex hand-operated valve |
| CN106763934A (en) * | 2016-12-20 | 2017-05-31 | 嘉兴爱克斯机械技术有限公司 | The lift check and cut-off combination valve of dual drive quick closedown |
| CN207145710U (en) * | 2017-06-13 | 2018-03-27 | 北京艾迪西暖通科技有限公司 | Moment shut-off valve |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108662166A (en) * | 2018-07-14 | 2018-10-16 | 温州市欧睿阀门有限公司 | It is a kind of can quickly either on or off shut-off valve |
| CN109882651A (en) * | 2019-03-15 | 2019-06-14 | 汉工阀门股份有限公司 | A kind of high-voltage high-speed shut-off valve |
| CN109882651B (en) * | 2019-03-15 | 2020-03-17 | 汉工阀门股份有限公司 | High-pressure quick shut-off valve |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107061764B (en) | 2019-05-21 |
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