CN106224566A - A kind of butterfly plate improves the butterfly valve making sealing effectiveness excellent - Google Patents
A kind of butterfly plate improves the butterfly valve making sealing effectiveness excellent Download PDFInfo
- Publication number
- CN106224566A CN106224566A CN201610744924.1A CN201610744924A CN106224566A CN 106224566 A CN106224566 A CN 106224566A CN 201610744924 A CN201610744924 A CN 201610744924A CN 106224566 A CN106224566 A CN 106224566A
- Authority
- CN
- China
- Prior art keywords
- butterfly plate
- butterfly
- valve
- plate
- valve body
- 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
- F16K1/16—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 with pivoted closure-members
- F16K1/18—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 with pivoted closure-members with pivoted discs or flaps
- F16K1/22—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 with pivoted closure-members with pivoted discs or flaps with axis of rotation crossing the valve member, e.g. butterfly valves
- F16K1/221—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 with pivoted closure-members with pivoted discs or flaps with axis of rotation crossing the valve member, e.g. butterfly valves specially adapted operating means therefor
-
- 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
- F16K1/16—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 with pivoted closure-members
- F16K1/18—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 with pivoted closure-members with pivoted discs or flaps
- F16K1/22—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 with pivoted closure-members with pivoted discs or flaps with axis of rotation crossing the valve member, e.g. butterfly valves
- F16K1/222—Shaping of the valve member
-
- 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
- F16K1/16—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 with pivoted closure-members
- F16K1/18—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 with pivoted closure-members with pivoted discs or flaps
- F16K1/22—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 with pivoted closure-members with pivoted discs or flaps with axis of rotation crossing the valve member, e.g. butterfly valves
- F16K1/226—Shaping or arrangements of the sealing
- F16K1/228—Movable sealing bodies
-
- 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
- F16K27/0209—Check valves or pivoted valves
- F16K27/0218—Butterfly valves
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Lift Valve (AREA)
- Sliding Valves (AREA)
Abstract
The invention discloses a kind of butterfly plate and improve the butterfly valve making sealing effectiveness excellent, including valve body, described valve body is columnar structured, and the inner surface of valve body offers annular slot, the through hole of valve outer surface connects sleeve pipe, the top of sleeve pipe connects rotating disk, and the inside of valve body is provided with butterfly plate, butterfly plate is hollow structure, the outer surface of butterfly plate is symmetrically connected with the first valve rod and the second valve rod, first valve rod passes annular slot and the through hole of valve outer surface successively away from one end of butterfly plate and is connected with the bottom of rotating disk, second valve rod runs through annular slot away from one end of butterfly plate and extends into the inside of valve interior wall, and it is provided with circular box at the inside center of butterfly plate, and offer the stopper slot being positioned at outside circular box on the inwall of butterfly plate.Invention replaces sealing ring and the sealing means of butterfly plate in prior art so that sealing effectiveness is more excellent, and make reduce increase the service life of butterfly valve, the suitability is higher.
Description
Technical field
The present invention relates to valve technology field, a kind of butterfly plate improves the butterfly valve making sealing effectiveness excellent.
Background technology
Butterfly valve is again flap valve, is the regulation valve of a kind of simple in construction, can be used for the on-off control of low pressure pipeline medium
Butterfly valve refers to that closure member (flap or butterfly plate) is disk, rotates a kind of valve reaching to open and close around valve shaft, and valve can
For controlling all kinds such as sky gas and water, steam, various Korrosionsmedium, mud, oil product, liquid metal and radiating medium
The flowing of fluid.Pipeline acts primarily as cut-out and throttling action.Butterfly valve opening and closing element is a discoidal butterfly plate, in valve body
Axis around himself rotates, thus reaches to open and close or the purpose of regulation.
And existing butterfly valve is when sealing, it is all to be coordinated by butterfly plate and sealing ring, to reach the effect sealed, but
Butterfly plate, in rotation process, can rub with sealing ring, thus the time is the most long, and the degree of wear of sealing ring will be the highest, from
And the sealing effectiveness of butterfly valve is reduced, the service life of butterfly valve reduces.
Summary of the invention
It is an object of the invention to provide a kind of butterfly plate and improve the butterfly valve making sealing effectiveness excellent, to solve above-mentioned background
The problem proposed in technology.
For achieving the above object, the present invention provides following technical scheme: a kind of butterfly plate improves and makes sealing effectiveness excellence
Butterfly valve, including valve body, described valve body is columnar structured, and the inner surface of valve body offers annular slot, valve outer surface
Through hole connect and have sleeve pipe, the top of sleeve pipe connects rotating disk, and the inside of valve body is provided with butterfly plate, and butterfly plate is hollow knot
Structure, the outer surface of butterfly plate is symmetrically connected with the first valve rod and the second valve rod, and the first valve rod passes ring successively away from one end of butterfly plate
Shape draw-in groove and the through hole of valve outer surface are also connected with the bottom of rotating disk, and the second valve rod runs through annular slot away from one end of butterfly plate
And extend into the inside of valve interior wall, and it is provided with at the inside center of butterfly plate on circular box, and the inwall of butterfly plate and opens
Being provided with the stopper slot being positioned at outside circular box, being connected by slide block in stopper slot has cage plate, and the two ends of cage plate are entered to be socketed with
Arc, is connected by back-moving spring between arc and the inwall of cage plate inside groove, passes through spiral shell between cage plate and circular box
Rotation spring connects, and the inside of circular box is up sequentially provided with intermeshing first gear from circle centre position along centrage
With the second gear, and the surface of the first gear and the second gear is respectively connected with rotating shaft, the table of the rotating shaft being positioned on the first gear
Face is wound with the first rope, and the other end of the first rope passes circular box and is connected with cage plate, is positioned on the second gear
The surface wrap of rotating shaft have the second rope, the other end of the second rope sequentially pass through circular box, butterfly plate, annular slot,
The through hole of valve outer surface, sleeve pipe and rotating disk are also connected with the cylinder being arranged at rotating disk top center.
Preferably, the quantity of described stopper slot is four, and four stopper slots are arranged in circle with the form of annular array and put
The outside of thing box.
Preferably, the quantity of described cage plate is four groups, and the quantity of arc is eight groups, four groups of cage plates and eight groups of arc groups
Become the annular slab structure of and butterfly plate concentric.
Preferably, described first valve rod and the second valve rod all offer connect with annular slot recessed with the junction of butterfly plate
Groove.
Preferably, the inwall of described circular box is provided with four groups of directive wheels with the form of annular array, directive wheel with
First rope overlap joint.
Compared with prior art, the invention has the beneficial effects as follows:
1, the present invention is coordinated by back-moving spring, helical spring, cage plate and arc, reaches to eject cage plate and arc in order to close
The effect of envelope, instead of sealing ring and the sealing means of butterfly plate in prior art so that sealing effectiveness is more excellent, and makes butterfly
Reducing the service life of valve and increase, the suitability is higher;
2, the present invention is coordinated by the first gear, the second gear, the second rope and the 3rd rope, reaches folding and unfolding cage plate and arc
Effect, it is possible to coordinate further other structures to seal, the ability that poppet body seals so that sealing effectiveness is excellent.
Accompanying drawing explanation
Fig. 1 is the cross-sectional view of front view of the present invention;
Fig. 2 is that the section of butterfly plate front view of the present invention connects ditch schematic diagram.
In figure: 1 valve body, 2 sleeve pipes, 3 rotating disks, 4 butterfly plates, 5 annular slots, 6 first valve rods, 7 second valve rods, 8 circular gloves
Box, 9 stopper slots, 10 cage plates, 11 arcs, 12 back-moving springs, 13 helical springs, 14 first gears, 15 second gears, 16 turns
Axle, 17 first ropes, 18 cylinders, 19 second ropes, 20 directive wheels.
Detailed description of the invention
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Describe, it is clear that described embodiment is only a part of embodiment of the present invention rather than whole embodiments wholely.Based on
Embodiment in the present invention, it is every other that those of ordinary skill in the art are obtained under not making creative work premise
Embodiment, broadly falls into the scope of protection of the invention.
As it is shown in figure 1, a kind of butterfly plate improves the butterfly valve making sealing effectiveness excellent, including valve body 1, valve body 1 is cylindrical shape
Structure, and the inner surface of valve body 1 offers annular slot 5, and the through hole of valve body 1 outer surface connects sleeve pipe 2, sleeve pipe 2
Top connects rotating disk 3, and the inside of valve body 1 is provided with butterfly plate 4, and butterfly plate 4 is hollow structure, and the outer surface symmetry of butterfly plate 4 is even
Being connected to the first valve rod 6 and the second valve rod 7, the first valve rod 6 passes annular slot 5 and valve body 1 appearance successively away from one end of butterfly plate 4
The through hole in face is also connected with the bottom of rotating disk 3, and the second valve rod 7 runs through annular slot 5 away from one end of butterfly plate 4 and extends into valve body
The inside of 1 inwall.
Position is offered as in figure 2 it is shown, be provided with at the inside center of butterfly plate 4 on circular box 8, and the inwall of butterfly plate 4
Stopper slot 9 outside circular box 8, the quantity of stopper slot 9 is four, and four stopper slots 9 are arranged with the form of annular array
Being listed in the outside of circular box 8, being connected by slide block in stopper slot 9 has cage plate 10 so that cage plate 10 is when sliding, it is possible to make
Obtain cage plate 10 to slide with the track of regulation, it is to avoid cage plate 10 offsets, and arc 11, arc 11 are entered to be socketed with in the two ends of cage plate 10
And being connected by back-moving spring 12 between the inwall of cage plate 10 inside groove, the quantity of cage plate 10 is four groups, and the quantity of arc 11 is
Eight groups, four groups of cage plates 10 and eight groups of arcs 11 form the annular slab structure of and butterfly plate 4 concentric, and this annular slab can stick into
In annular slot 5 so that sealing effectiveness is more preferable, and the junction of the first valve rod 6 and the second valve rod 7 and butterfly plate 4 all offers
The groove connected with annular slot 5, it is possible to accommodate annular slab, between cage plate 10 and circular box 8 by helical spring 13 even
Connect, and the inside of circular box 8 is up sequentially provided with intermeshing first gear 14 and the from circle centre position along centrage
Two gears 15, and the surface of the first gear 14 and the second gear 15 is respectively connected with rotating shaft 16, and be positioned on the first gear 14 turns
The surface wrap of axle 16 has the first rope 17, and the other end of the first rope 17 passes circular box 8 and is connected with cage plate 10,
The surface wrap being positioned at the rotating shaft 16 on the second gear 15 has the second rope 19, the other end of the second rope 19 to sequentially pass through circle
Box 8, butterfly plate 4, annular slot 5, the through hole of valve body 1 outer surface, sleeve pipe 2 and rotating disk 3 and be arranged on rotating disk 3 top center
The cylinder 18 at place connects, and the inwall of circular box 8 is provided with four groups of directive wheels 20 with the form of annular array, directive wheel 20 with
First rope 17 overlaps, and when the rotating shaft 16 on the first gear 14 rotates and is wound around the first rope 17, directive wheel 20 enables to
First rope 17 is constant to the direction of the power that cage plate 10 applies.
The present invention, when sealing, first lifts cylinder 18, and drives the second gear 15 to rotate by the second rope 19,
Second gear 15 drives the first gear 14 engaged to rotate, so that the first rope 17 pulls cage plate 10 to circular glove
The circle centre position of box 8 moves, simultaneously arc 11 compression reseting spring 12 takeing in cage plate 10, thus cage plate 10 is taken in butterfly plate
In 4, then rotate rotating disk 3, so that rotating disk 3 drives butterfly plate 4 to rotate by the first valve rod 6, and when butterfly plate 4 moves
To during with valve body 1 same plane, decontrol cylinder 18, by back-moving spring 12 and the restoring force of helical spring 13, by cage plate 10 He
In the annular slab of arc 11 composition advances annular slot 5, seal.
When the present invention opens, first lifting cylinder 18, and drive the second gear 15 to rotate by the second rope 19, the
Two gears 15 drive the first gear 14 engaged to rotate, so that the first rope 17 pulls cage plate 10 to circular box
The circle centre position of 8 moves, simultaneously arc 11 compression reseting spring 12 takeing in cage plate 10, thus by cage plate 10 and arc 11
The annular slab of composition draws in butterfly plate 4, then rotates rotating disk 3, so that rotating disk 3 drives butterfly plate 4 to carry out by the first valve rod 6
Rotate, and make butterfly plate 4 and valve body 1 not at same plane, i.e. open valve.
To sum up gained, instead of sealing means of the prior art so that sealing effectiveness is more excellent, and makes butterfly valve
Reducing service life and increase, the suitability is higher.
Although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, permissible
Understand and these embodiments can be carried out multiple change without departing from the principles and spirit of the present invention, revise, replace
And modification, the scope of the present invention be defined by the appended.
Claims (5)
1. butterfly plate improves the butterfly valve making sealing effectiveness excellent, including valve body (1), it is characterised in that: described valve body (1) is
Columnar structured, and the inner surface of valve body (1) offers annular slot (5), and the through hole of valve body (1) outer surface connects set
Pipe (2), the top of sleeve pipe (2) connects rotating disk (3), and the inside of valve body (1) is provided with butterfly plate (4), and butterfly plate (4) is hollow knot
Structure, the outer surface of butterfly plate (4) is symmetrically connected with the first valve rod (6) and the second valve rod (7), and the first valve rod (6) is away from butterfly plate (4)
One end passes annular slot (5) and the through hole of valve body (1) outer surface successively and the bottom with rotating disk (3) is connected, the second valve rod (7)
One end away from butterfly plate (4) is run through annular slot (5) and extends in the inside of valve body (1) inwall, and the inside of butterfly plate (4)
It is provided with circular box (8) at the heart, and on the inwall of butterfly plate (4), offers the stopper slot being positioned at circular box (8) outside
(9), cage plate (10), the two ends of cage plate (10) is had to enter to be socketed with arc (11), arc by slide block connection in stopper slot (9)
(11) and it is connected by back-moving spring (12) between the inwall of cage plate (10) inside groove, between cage plate (10) and circular box (8)
Connected by helical spring (13), and the inside of circular box (8) is up sequentially provided with mutually along centrage from circle centre position
First gear (14) of engagement and the second gear (15), and the surface of the first gear (14) and the second gear (15) is respectively connected with
Rotating shaft (16), the surface wrap of the rotating shaft (16) being positioned on the first gear (14) has the first rope (17), and the first rope (17)
The other end pass circular box (8) and be connected with cage plate (10), the surface of the rotating shaft (16) being positioned on the second gear (15)
Being wound with the second rope (19), the other end of the second rope (19) sequentially passes through circular box (8), butterfly plate (4), annular slot
(5), the through hole of valve body (1) outer surface, sleeve pipe (2) and rotating disk (3) and with the cylinder (18) being arranged at rotating disk (3) top center
Connect.
A kind of butterfly plate the most according to claim 1 improves the butterfly valve making sealing effectiveness excellent, it is characterised in that: described limit
The quantity of position groove (9) is four, and four stopper slots (9) are arranged in the outside of circular box (8) with the form of annular array.
A kind of butterfly plate the most according to claim 1 improves the butterfly valve making sealing effectiveness excellent, it is characterised in that: described set
The quantity of plate (10) is four groups, and the quantity of arc (11) is eight groups, four groups of cage plates (10) and eight groups of arc (11) compositions one
The individual annular slab structure with butterfly plate (4) concentric.
A kind of butterfly plate the most according to claim 1 improves the butterfly valve making sealing effectiveness excellent, it is characterised in that: described the
One valve rod (6) all offers, with the junction of the second valve rod (7) with butterfly plate (4), the groove connected with annular slot (5).
A kind of butterfly plate the most according to claim 1 improves the butterfly valve making sealing effectiveness excellent, it is characterised in that: described circle
It is provided with four groups of directive wheels (20), directive wheel (20) and the first rope with the form of annular array on the inwall of shape box (8)
(17) overlap joint.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201610744924.1A CN106224566B (en) | 2016-08-29 | 2016-08-29 | A kind of butterfly valve that butterfly plate improvement makes sealing effect excellent |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201610744924.1A CN106224566B (en) | 2016-08-29 | 2016-08-29 | A kind of butterfly valve that butterfly plate improvement makes sealing effect excellent |
Publications (2)
Publication Number | Publication Date |
---|---|
CN106224566A true CN106224566A (en) | 2016-12-14 |
CN106224566B CN106224566B (en) | 2018-10-09 |
Family
ID=57555892
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN201610744924.1A Expired - Fee Related CN106224566B (en) | 2016-08-29 | 2016-08-29 | A kind of butterfly valve that butterfly plate improvement makes sealing effect excellent |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN106224566B (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN110052793A (en) * | 2019-05-14 | 2019-07-26 | 陈立国 | A kind of processing method of butterfly type valve structure |
CN113339528A (en) * | 2021-07-02 | 2021-09-03 | 西玛克(厦门)阀门有限公司 | Butterfly valve |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4416741A1 (en) * | 1994-05-12 | 1995-11-16 | Kempchen & Co Gmbh | Shut-off device with a housing forming a flow channel and a shut-off valve |
CN2337353Y (en) * | 1998-08-28 | 1999-09-08 | 胡少文 | Multi-purpose linkage valve |
CN2500754Y (en) * | 2001-09-11 | 2002-07-17 | 吕昭瑢 | Electric lock |
CN101226843A (en) * | 2008-01-06 | 2008-07-23 | 余义伦 | Input controller for digital and character |
CN102537411A (en) * | 2010-12-14 | 2012-07-04 | 中国科学院过程工程研究所 | Rotary multi-way valve |
CN206017762U (en) * | 2016-08-29 | 2017-03-15 | 约翰斯顿流体科技(无锡)有限公司 | A kind of butterfly plate improves the butterfly valve for causing sealing effectiveness excellent |
-
2016
- 2016-08-29 CN CN201610744924.1A patent/CN106224566B/en not_active Expired - Fee Related
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4416741A1 (en) * | 1994-05-12 | 1995-11-16 | Kempchen & Co Gmbh | Shut-off device with a housing forming a flow channel and a shut-off valve |
CN2337353Y (en) * | 1998-08-28 | 1999-09-08 | 胡少文 | Multi-purpose linkage valve |
CN2500754Y (en) * | 2001-09-11 | 2002-07-17 | 吕昭瑢 | Electric lock |
CN101226843A (en) * | 2008-01-06 | 2008-07-23 | 余义伦 | Input controller for digital and character |
CN102537411A (en) * | 2010-12-14 | 2012-07-04 | 中国科学院过程工程研究所 | Rotary multi-way valve |
CN206017762U (en) * | 2016-08-29 | 2017-03-15 | 约翰斯顿流体科技(无锡)有限公司 | A kind of butterfly plate improves the butterfly valve for causing sealing effectiveness excellent |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN110052793A (en) * | 2019-05-14 | 2019-07-26 | 陈立国 | A kind of processing method of butterfly type valve structure |
CN110052793B (en) * | 2019-05-14 | 2020-09-04 | 耐森阀业有限公司 | Machining method of butterfly valve body structure |
CN113339528A (en) * | 2021-07-02 | 2021-09-03 | 西玛克(厦门)阀门有限公司 | Butterfly valve |
CN113339528B (en) * | 2021-07-02 | 2023-03-14 | 西玛克(厦门)阀门有限公司 | Butterfly valve |
Also Published As
Publication number | Publication date |
---|---|
CN106224566B (en) | 2018-10-09 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN107605844A (en) | A kind of rotating hydraulic cylinder | |
CN106224566A (en) | A kind of butterfly plate improves the butterfly valve making sealing effectiveness excellent | |
CN205026121U (en) | Sealed rotatory slide valve of multi -door overlapping of modular | |
CN206246713U (en) | High-performance abrasion-proof control type ball valve | |
CN102878344B (en) | Pneumatic actuator for angular travel valve | |
CN107504219A (en) | A kind of twin-stage drive type electric sealing ball valve device | |
CN206017762U (en) | A kind of butterfly plate improves the butterfly valve for causing sealing effectiveness excellent | |
CN206723566U (en) | A kind of novel valve | |
CN206017760U (en) | A kind of high leakproofness butterfly valve | |
CN206280510U (en) | A kind of flap can leave the stop valve of runner | |
CN103953735A (en) | Special angle stop valve for chlor-alkali | |
CN104676079B (en) | A kind of compact valve driving machine structure | |
CN207364347U (en) | A kind of safe adverse current valve body for avoiding liquid liquid from flowing backwards | |
CN208204053U (en) | A kind of totally enclosed type electric gate valve | |
CN202971986U (en) | Large-caliber fuel gas double-door ball valve | |
CN105042101B (en) | A kind of multi-door lap seal rotating gate plate valve of modular | |
CN207363991U (en) | A kind of rotating hydraulic cylinder | |
CN207333757U (en) | A kind of fuel charger shut-off valve | |
CN203516830U (en) | High-pressure balanced type three-way control valve | |
CN107575587A (en) | Dust butterfly valve | |
CN207486069U (en) | Three eccentricity hard seal butterfly valve | |
CN206608564U (en) | A kind of inside screw nonrising stem type gate valve | |
CN206958279U (en) | High-sealing butterfly valve structure | |
CN206274077U (en) | A kind of stop valve of good airproof performance | |
CN206274080U (en) | A kind of novel cutoff valve |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
C06 | Publication | ||
PB01 | Publication | ||
SE01 | Entry into force of request for substantive examination | ||
SE01 | Entry into force of request for substantive examination | ||
GR01 | Patent grant | ||
GR01 | Patent grant | ||
CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20181009 Termination date: 20190829 |
|
CF01 | Termination of patent right due to non-payment of annual fee |