CN109140009B - Closed butterfly valve capable of controlling flow - Google Patents
Closed butterfly valve capable of controlling flow Download PDFInfo
- Publication number
- CN109140009B CN109140009B CN201811234798.0A CN201811234798A CN109140009B CN 109140009 B CN109140009 B CN 109140009B CN 201811234798 A CN201811234798 A CN 201811234798A CN 109140009 B CN109140009 B CN 109140009B
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- China
- Prior art keywords
- pipe
- connecting pipe
- butterfly valve
- hole
- flow
- 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.)
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- 238000007789 sealing Methods 0.000 claims description 10
- 238000009434 installation Methods 0.000 claims description 7
- 230000001276 controlling effect Effects 0.000 description 6
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000009172 bursting Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
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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
- F16K27/02—Construction of housing; Use of materials therefor of lift valves
- F16K27/0209—Check valves or pivoted valves
- F16K27/0218—Butterfly 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
- 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
- F16K1/2263—Shaping or arrangements of the sealing the sealing being arranged on the valve seat
-
- 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
- F16K1/52—Means for additional adjustment of the rate of flow
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Infusion, Injection, And Reservoir Apparatuses (AREA)
- Pipe Accessories (AREA)
Abstract
The invention discloses a closed butterfly valve capable of controlling flow, which comprises a mounting pipe and a mounting plate, wherein one end of the mounting pipe is provided with a first connecting pipe, the first connecting pipe is connected with a second connecting pipe, the top ends of the first connecting pipe and the second connecting pipe are respectively provided with a fixed pipe, a sliding groove is arranged in the fixed pipe, a sliding block is connected in the sliding groove in a rotating way, the bottom end of the sliding block is connected with a connecting shaft, and the connecting shaft penetrates through and extends to the inside of the first connecting pipe and the inside of the second connecting pipe and is connected with a baffle plate.
Description
Technical Field
The invention relates to the technical field of closed butterfly valves, in particular to a closed butterfly valve capable of controlling flow.
Background
The butterfly valve is also called a flap valve, and is a simple-structure regulating valve, the butterfly valve capable of being used for the on-off control of low-pressure pipeline media is a valve in which a closing member (a valve clack or a butterfly plate) is a disc and rotates around a valve shaft to achieve opening and closing, and a plurality of butterfly valves exist in the market at present, but due to design reasons, the butterfly valve has the problems of poor tightness and easy leakage, and the butterfly valve also has the problem of being inconvenient to control the flow, so that the use requirement of people cannot be met.
Disclosure of Invention
The invention aims to overcome the existing defects, provides the closed butterfly valve capable of controlling the flow, has good sealing performance, and is convenient to control the flow according to the use requirement, so that the use requirement of people is met, and the problems in the background technology can be effectively solved.
In order to achieve the above purpose, the present invention provides the following technical solutions: the utility model provides a but closed butterfly valve of control flow, includes mounting tube and mounting panel, the one end of mounting tube is equipped with first connecting tube, be connected with the second connecting tube on the first connecting tube, the top of first connecting tube and second connecting tube all is equipped with the fixed pipe, is equipped with the spout in the fixed pipe, the spout internal rotation is connected with the slider, the bottom of slider is connected with the connecting axle, and the connecting axle runs through and extends to the inside of first connecting tube and second connecting tube and be connected with the baffle, the side of baffle is tangent to the inner wall of first connecting tube and second connecting tube and sets up, the top of baffle is equipped with the sealing washer, the top of sealing washer is tangent to the bottom of fixed tube, and the top of connecting axle is equipped with the connecting plate, the bottom of mounting panel is equipped with servo motor, servo motor's output shaft is connected with the connecting plate, the side of first connecting tube is equipped with the draw-in groove, the side of second connecting tube corresponds the position department of draw-in groove, still be equipped with flow regulator on the mounting tube, flow regulator's side is equipped with control switch group, control switch group's output electricity connects servo motor's input.
As a preferable technical scheme of the invention, a spherical groove is arranged in the flow regulator, an air bag is arranged in the spherical groove, and the top end of the air bag is connected with a catheter.
As a preferable technical scheme of the invention, the top end of the conduit penetrates through and extends to the outside of the flow regulator, and the top end of the conduit is provided with a barometer.
As a preferable technical scheme of the invention, one side of the guide pipe is connected with an inflator pump through a pipeline, a first electromagnetic valve is arranged on a connecting pipeline of the inflator pump and the guide pipe, and input ends of the inflator pump and the first electromagnetic valve are electrically connected with output ends of the control switch group.
As a preferable technical scheme of the invention, the other side of the catheter is connected with the air pump through a pipeline, a second electromagnetic valve is arranged on a connecting pipeline of the air pump and the catheter, and the input ends of the first electromagnetic valve and the air pump are electrically connected with the output end of the control switch group.
As a preferable technical scheme of the invention, the other end of the mounting pipe and the surface of one side of the second connecting pipe, which is far away from the first connecting pipe, are respectively provided with a connecting disc, the connecting disc is provided with a first connecting hole, and a first connecting column is rotationally connected in the first connecting hole.
As a preferable technical scheme of the invention, the corresponding surfaces of the first connecting pipe and the second connecting pipe are respectively provided with a connecting ring, the connecting rings are provided with first through holes, first studs are connected in a sliding manner in the first through holes, and first nuts are connected to the first studs in a rotating manner.
As a preferable technical scheme of the invention, the top ends of the mounting plate and the fixing tube are respectively provided with a second connecting hole, and a second connecting column is rotationally connected in the second connecting holes.
As a preferable technical scheme of the invention, the top end of the connecting plate is provided with a second stud, the bottom end of the output shaft of the servo motor is provided with a second through hole corresponding to the position of the second stud, and a second nut is rotationally connected to the second stud above the second through hole.
As a preferable technical scheme of the invention, a gasket is arranged between the clamping groove and the card, and the gasket is of a soft rubber structure.
Compared with the prior art, the invention has the beneficial effects that:
this closed butterfly valve of steerable flow, the inside spout at fixed pipe and the structure setting of slider to and the structure setting of sealing washer can effectually prevent that liquid in way from leaking from the position of fixed pipe, and the draw-in groove and the structure setting of card and gasket, can effectually prevent that liquid in way from leaking from the junction of first connecting pipe and second connecting pipe, thereby guaranteed sealed effect.
This closed butterfly valve of steerable flow is controlled through the work of control switch group to pump and first solenoid valve to aerify the gasbag, simultaneously through controlling the work of aspiration pump and second solenoid valve, bleed to the gasbag from this, then measure the inside atmospheric pressure of gasbag through the barometer, judge the size of gasbag from this to seal and open the space of spherical inslot, play the effect of control flow from this.
This closed butterfly valve of steerable flow sets up at the connection pad structure on the top of installation pipe and second connecting pipe top, is convenient for be connected whole and other pipelines of external world, fixes two go-between through first double-screw bolt and first nut to make first connecting pipe and second connecting pipe can the inseparable contact, thereby guaranteed the leakproofness of connection.
This closed butterfly valve of steerable flow seals the connection of first connecting pipe and second connecting pipe through the mode of a plurality of connections to guaranteed wholly to have good leakproofness, thereby can effectively avoid revealing, simultaneously through aerifing and gassing the gasbag inside, thereby change the size of gasbag, come to control the inside outflow of installation pipe from this, thereby convenient to use person adjusts the flow according to the demand of using.
Drawings
FIG. 1 is a schematic diagram of the structure of the present invention;
fig. 2 is a schematic diagram of the internal structure of the present invention.
In the figure: 1 mounting tube, 2 first connecting tube, 3 second connecting tube, 4 chute, 5 slider, 6 baffle, 7 sealing sheet, 8 connecting plate, 9 mounting plate, 10 servo motor, 11 draw-in groove, 12 card, 13 flow regulator, 14 ball groove, 15 gasbag, 16 pipe, 17 barometer, 18 pump, 19 first solenoid valve, 20 aspiration pump, 21 second solenoid valve, 22 connection pad, 23 first connecting hole, 24 first connecting column, 25 go-between, 26 first through hole, 27 first stud, 28 first nut, 29 second connecting hole, 30 second connecting column, 31 second stud, 32 second through hole, 33 second nut, 34 gasket, 35 control switch group.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Referring to fig. 1-2, the present invention provides a technical solution: the utility model provides a closed butterfly valve of steerable flow, including installation tube 1 and mounting panel 9, the one end of installation tube 1 is equipped with first connecting tube 2, be connected with second connecting tube 3 on the first connecting tube 2, the top of first connecting tube 2 and second connecting tube 3 all is equipped with the fixed pipe, be equipped with spout 4 in the fixed pipe, the spout 4 internal rotation is connected with slider 5, the bottom of slider 5 is connected with the connecting axle, the connecting axle runs through and extends to the inside of first connecting tube 2 and second connecting tube 3 and is connected with baffle 6, baffle 6's side and the tangent setting of inner wall of first connecting tube 2 and second connecting tube 3, baffle 6's top is equipped with sealing piece 7, sealing piece 7's top and the tangent setting of bottom of fixed pipe, the top of connecting axle is equipped with connecting plate 8, the bottom of mounting panel 9 is equipped with servo motor 10, servo motor 10's output shaft and connecting plate 8 are connected, the side of the first connecting pipe 2 is provided with a clamping groove 11, the side of the second connecting pipe 3 is provided with a clamping piece 12 corresponding to the clamping groove 11, a gasket 34 is arranged between the clamping groove 11 and the clamping piece 12, the gasket 34 is of a soft rubber structure, good tightness of connection between the clamping groove 11 and the clamping piece 12 is ensured, the mounting pipe 1 is also provided with a flow regulator 13, the inside of the flow regulator 13 is provided with a spherical groove 14, an air bag 15 is arranged in the spherical groove 14, the top end of the air bag 15 is connected with a guide pipe 16, the top end of the guide pipe 16 penetrates through and extends to the outside of the flow regulator 13, the top end of the guide pipe 16 is provided with a barometer 17, the size of the air bag 15 is indirectly judged by observing data on the barometer 17, one side of the guide pipe 16 is connected with an inflator 18 through a pipeline, the connecting pipeline of the inflator 18 and the guide pipe 16 is provided with a first electromagnetic valve 19, by controlling the operation of the inflator 18 and the first electromagnetic valve 19, the air bag 15 is inflated, the other side of the conduit 16 is connected with the air pump 20 through a pipeline, the connecting pipeline between the air pump 20 and the conduit 16 is provided with the second electromagnetic valve 21, the air bag 15 is deflated by controlling the operation of the first electromagnetic valve 19 and the air pump 20, the other end of the installation tube 1 and the surface of the second connecting tube 3 far away from one side of the first connecting tube 2 are both provided with a connecting disc 22, the connecting disc 22 is provided with a first connecting hole 23, the first connecting hole 23 is rotationally connected with a first connecting column 24, the whole is conveniently connected with the pipeline outside, the corresponding surfaces of the first connecting tube 2 and the second connecting tube 3 are both provided with connecting rings 25, the connecting rings 25 are provided with first through holes 26, the first studs 27 are connected in a sliding way, the first studs 27 are rotationally connected with first nuts 28, the connection firmness between the first connecting pipe 2 and the second connecting pipe 3 is ensured, the top ends of the mounting plate 9 and the fixed pipe are respectively provided with a second connecting hole 29, a second connecting column 30 is rotationally connected to the second connecting holes 29, the mounting plate 9 is convenient to fixedly mount, the top end of the connecting plate 8 is provided with a second stud 31, the position of the bottom end of the output shaft of the servo motor 10 corresponding to the second stud 31 is provided with a second through hole 32, the second stud 31 above the second through hole 32 is rotationally connected with a second nut 33, the connecting plate 8 can rotate along with the output shaft of the servo motor 10, the position of the baffle 6 is convenient to adjust, the side surface of the flow regulator 13 is provided with a control switch group 35, the output end of the control switch group 35 is electrically connected with the input ends of the servo motor 10, the inflator 18, the first electromagnetic valve 19, the air pump 20 and the second electromagnetic valve 21, the control switch group 35 is provided with adjusting buttons corresponding to the servo motor 10, the air pump 18, the first electromagnetic valve 19, the air pump 20 and the second electromagnetic valve 21 one by one, and the control switch group 35 controls the servo motor 10, the air pump 18, the first electromagnetic valve 19, the air pump 20 and the second electromagnetic valve 21 to work by adopting a method commonly used in the prior art.
When in use: the position of the sliding block 5 is opposite to the position of the sliding groove 4, the gasket 34 is placed in the clamping groove 11, then the first connecting pipe 2 and the second connecting pipe 3 are connected, then the first stud 27 and the first nut 28 are used for fixing, the output shaft of the servo motor 10 and the connecting plate 8 are connected through the second stud 31 and the second nut 33, the mounting plate 9 is fixed through the second connecting post 30, finally the whole body is connected with an external pipeline through the connecting disc 22, so that the mounting is completed, the operation of the servo motor 10 is controlled through the control switch group 35, the baffle 6 can be driven to rotate, the valve is opened, the size of the air bag 15 is adjusted through the operation of the air pump 18, the first electromagnetic valve 19 and the air pump 20 and the second electromagnetic valve 21, and the flow in the mounting pipe 1 is adjusted.
According to the invention, the interface between the connecting shaft and the fixed pipe is sealed through the sealing sheet 7, so that leakage of solution from the fixed pipe can be effectively prevented, the connection tightness of the first connecting pipe 2 and the second connecting pipe 3 is ensured through the connection of the clamping groove 11 and the clamping piece 12 and the arrangement of the gasket 34, and the air pressure inside the air bag 15 is measured through the air pressure meter 17, so that the air bag is convenient for a user to observe, and the condition of bursting caused by overhigh pressure inside the air bag 15 can be effectively avoided.
Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (7)
1. The utility model provides a closed butterfly valve of steerable flow, includes mounting tube (1) and mounting panel (9), its characterized in that: the utility model discloses a flow regulator, including installation pipe (1), fixed pipe, connecting plate, clamping groove (11) are equipped with, the one end of installation pipe (1) is equipped with first connecting pipe (2), be connected with second connecting pipe (3) on first connecting pipe (2), the top of first connecting pipe (2) and second connecting pipe (3) all is equipped with fixed pipe, is equipped with spout (4) in the fixed pipe, spout (4) internal rotation is connected with slider (5), the bottom of slider (5) is connected with the connecting axle, and the connecting axle runs through and extends to the inside of first connecting pipe (2) and second connecting pipe (3) and be connected with baffle (6), the side of baffle (6) and the tangent setting of inner wall of first connecting pipe (2) and second connecting pipe (3), the top of baffle (6) is equipped with sealing piece (7), the top of sealing piece (7) and the tangent setting of fixed pipe's bottom, the top of connecting axle is equipped with connecting plate (8), the bottom of spout (9) is equipped with servo motor (10), the output shaft and connecting plate (8) are connected, the side of first connecting pipe (2) is equipped with clamping groove (11), the side of second connecting pipe (3) is equipped with flow regulator (13) corresponding to side regulator (13), the output end of the control switch group (35) is electrically connected with the input end of the servo motor (10);
a spherical groove (14) is formed in the flow regulator (13), an air bag (15) is arranged in the spherical groove (14), and the top end of the air bag (15) is connected with a catheter (16);
one side of the guide pipe (16) is connected with an inflator pump (18) through a pipeline, a first electromagnetic valve (19) is arranged on a connecting pipeline of the inflator pump (18) and the guide pipe (16), and input ends of the inflator pump (18) and the first electromagnetic valve (19) are electrically connected with output ends of a control switch group (35);
the other side of the conduit (16) is connected with an air pump (20) through a pipeline, a second electromagnetic valve (21) is arranged on a connecting pipeline of the air pump (20) and the conduit (16), and the input ends of the first electromagnetic valve (19) and the air pump (20) are electrically connected with the output end of a control switch group (35).
2. The flow controllable closed butterfly valve of claim 1, wherein: the top end of the conduit (16) penetrates through and extends to the outside of the flow regulator (13), and the top end of the conduit (16) is provided with a barometer (17).
3. The flow controllable closed butterfly valve of claim 1, wherein: the connecting plate (22) is arranged on the surface, far away from the first connecting pipe (2), of the other end of the mounting pipe (1) and the second connecting pipe (3), a first connecting hole (23) is formed in the connecting plate (22), and a first connecting column (24) is connected in a rotary mode in the first connecting hole (23).
4. The flow controllable closed butterfly valve of claim 1, wherein: the connecting device is characterized in that connecting rings (25) are arranged on the corresponding surfaces of the first connecting pipe (2) and the second connecting pipe (3), a first through hole (26) is formed in the connecting rings (25), a first stud (27) is connected in a sliding mode in the first through hole (26), and a first nut (28) is connected to the first stud (27) in a rotating mode.
5. The flow controllable closed butterfly valve of claim 1, wherein: the top of mounting panel (9) and fixed pipe all is equipped with second connecting hole (29), second connecting hole (29) internal rotation is connected with second spliced pole (30).
6. The flow controllable closed butterfly valve of claim 1, wherein: the top of connecting plate (8) is equipped with second double-screw bolt (31), the bottom of servo motor (10) output shaft corresponds second double-screw bolt (31) position department and is equipped with second through-hole (32), rotate on second double-screw bolt (31) of second through-hole (32) top and be connected with second nut (33).
7. The flow controllable closed butterfly valve of claim 1, wherein: a gasket (34) is arranged between the clamping groove (11) and the card (12), and the gasket (34) is of a soft rubber structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811234798.0A CN109140009B (en) | 2018-10-23 | 2018-10-23 | Closed butterfly valve capable of controlling flow |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811234798.0A CN109140009B (en) | 2018-10-23 | 2018-10-23 | Closed butterfly valve capable of controlling flow |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109140009A CN109140009A (en) | 2019-01-04 |
| CN109140009B true CN109140009B (en) | 2024-04-09 |
Family
ID=64809504
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811234798.0A Active CN109140009B (en) | 2018-10-23 | 2018-10-23 | Closed butterfly valve capable of controlling flow |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109140009B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109958792A (en) * | 2019-05-06 | 2019-07-02 | 浙江天天阀门有限公司 | A kind of two-piece type full-bore V-type ball valve |
| CN110906018B (en) * | 2019-11-25 | 2021-10-26 | 温州市海格阀门有限公司 | High leakproofness gate valve |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2767771Y (en) * | 2005-01-06 | 2006-03-29 | 铁岭阀门(集团)特种阀门有限责任公司 | Quick shut-off butterfly valve |
| CN103032590A (en) * | 2011-10-08 | 2013-04-10 | 孙敬东 | Double-clip type numerical control electric butterfly valve |
| CN103228965A (en) * | 2010-09-20 | 2013-07-31 | 诺格伦有限责任公司 | Butterfly valve |
| CN205504014U (en) * | 2016-04-08 | 2016-08-24 | 浙江四通阀门制造有限公司 | Seal butterfly valve |
| CN107061761A (en) * | 2017-06-01 | 2017-08-18 | 浙江固特气动科技股份有限公司 | A kind of modified butterfly valve |
| CN107110379A (en) * | 2014-12-26 | 2017-08-29 | 日立Ge核能株式会社 | Butterfly valve |
| CN209262358U (en) * | 2018-10-23 | 2019-08-16 | 镇江市神龙电器管件有限公司 | A kind of closed butterfly valve of controllable flow rate |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DK178639B1 (en) * | 2014-01-17 | 2016-09-26 | Vid Fire-Kill Aps | Universal Flow Control Device |
-
2018
- 2018-10-23 CN CN201811234798.0A patent/CN109140009B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2767771Y (en) * | 2005-01-06 | 2006-03-29 | 铁岭阀门(集团)特种阀门有限责任公司 | Quick shut-off butterfly valve |
| CN103228965A (en) * | 2010-09-20 | 2013-07-31 | 诺格伦有限责任公司 | Butterfly valve |
| CN103032590A (en) * | 2011-10-08 | 2013-04-10 | 孙敬东 | Double-clip type numerical control electric butterfly valve |
| CN107110379A (en) * | 2014-12-26 | 2017-08-29 | 日立Ge核能株式会社 | Butterfly valve |
| CN205504014U (en) * | 2016-04-08 | 2016-08-24 | 浙江四通阀门制造有限公司 | Seal butterfly valve |
| CN107061761A (en) * | 2017-06-01 | 2017-08-18 | 浙江固特气动科技股份有限公司 | A kind of modified butterfly valve |
| CN209262358U (en) * | 2018-10-23 | 2019-08-16 | 镇江市神龙电器管件有限公司 | A kind of closed butterfly valve of controllable flow rate |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109140009A (en) | 2019-01-04 |
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