CN108374899B - High-flexibility strong-erosion-resistant butterfly valve - Google Patents
High-flexibility strong-erosion-resistant butterfly valve Download PDFInfo
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- CN108374899B CN108374899B CN201810202261.XA CN201810202261A CN108374899B CN 108374899 B CN108374899 B CN 108374899B CN 201810202261 A CN201810202261 A CN 201810202261A CN 108374899 B CN108374899 B CN 108374899B
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- transmission shaft
- bevel gear
- gearbox
- butterfly valve
- valve
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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
- F16K1/223—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 with a plurality of valve members
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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
- F16K1/224—Details of bearings for the axis of rotation
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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
- F16K1/2268—Sealing means for the axis of rotation
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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
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/44—Mechanical actuating means
- F16K31/53—Mechanical actuating means with toothed gearing
- F16K31/535—Mechanical actuating means with toothed gearing for rotating 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
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/44—Mechanical actuating means
- F16K31/60—Handles
Abstract
The invention provides a high-flexibility strong-erosion-resistant butterfly valve which comprises a valve body, wherein a transmission mechanism is arranged on the surface of the valve body, a shell is arranged at the bottom end of the transmission mechanism, a first gearbox is arranged on one side of the transmission mechanism, a first hand wheel is arranged at one end of the first gearbox, a first disc plate is arranged inside the shell, a fixed pipe is arranged inside the first disc plate, the first gearbox is connected with the top end of the fixed pipe through a gear, a second transmission shaft is arranged inside the fixed pipe, a second hand wheel is arranged at the top end of the second transmission shaft, a second gearbox is arranged at the bottom end of the second transmission shaft, and a second shaft is arranged outside the second transmission shaft. This resistant strong erosion butterfly valve of high flexibility, through setting up a plurality of second dish boards, first dish board thickness is 6cm at least, makes the closing of valve body need two steps to accomplish, has not only reduced the biggest flow resistance of closing the valve, has improved the flexibility of valve body, and the change looks has increased the resistant strong erosion ability of butterfly valve moreover, has improved the application scope and the market competition of butterfly valve.
Description
Technical Field
The invention relates to the field of valve bodies, in particular to a high-flexibility strong-erosion-resistant butterfly valve.
Background
A butterfly valve, also called a flap valve, is a regulating valve with simple structure, and can be used for the on-off control of low-pressure pipeline media, namely a valve which is opened and closed by rotating around a valve shaft, wherein a closing member (a valve clack or a butterfly plate) is a disk.
The valve can be used for controlling the flow of various types of fluids such as air, water, steam, various corrosive media, slurry, oil products, liquid metal, radioactive media and the like. The pipe mainly plays a role in cutting off and throttling. The butterfly valve opening and closing piece is a disc-shaped butterfly plate and rotates around the axis of the butterfly plate in the valve body, so that the opening and closing or adjusting purpose is achieved.
The butterfly valve is a valve which uses a disc type opening and closing piece to rotate back and forth by about 90 degrees to open, close or adjust the medium flow. The butterfly valve has the advantages of simple structure, small volume, light weight, less material consumption, small installation size, small driving moment, simple and convenient operation and rapidness, and simultaneously has good flow regulation function and sealing closing characteristic, thereby being one of the fastest valve varieties developed in the last ten years. Butterfly valves are widely used. The variety and number of uses thereof are still continuously expanding and are developing toward high temperature, high pressure, large caliber, high sealing property, long life, excellent regulation property, and one-valve multi-function. The reliability and other performance indexes of the composite material reach higher levels.
At present, most butterfly valves have limited anti-erosion capacity and small pressure bearing range, so that the application range of the butterfly valves is small, the flow resistance is large when the butterfly valves are closed, physical power consumption is high when the butterfly valves are closed, and inconvenience is brought to life of people.
Disclosure of Invention
Technical problem to be solved
Aiming at the defects of the prior art, the invention provides a high-flexibility strong-erosion-resistant butterfly valve, which solves the problems that most of the butterfly valves at present have limited erosion resistance, small pressure bearing range, small application range of the butterfly valve, large flow resistance during closing, large physical power consumption during closing and inconvenience for life of people.
(II) technical scheme
In order to achieve the purpose, the invention is realized by the following technical scheme: a high-flexibility strong-erosion-resistant butterfly valve comprises a valve body, wherein a transmission mechanism is arranged on the surface of the valve body, a shell is arranged at the bottom end of the transmission mechanism, a first gearbox is arranged on one side of the transmission mechanism, a first hand wheel is arranged at one end of the first gearbox, a first disc is arranged inside the shell, a fixed pipe is arranged inside the first disc, the first gearbox is connected with the top end of the fixed pipe through a gear, a second transmission shaft is arranged inside the fixed pipe, a second hand wheel is arranged at the top end of the second transmission shaft, a second gearbox is arranged at the bottom end of the second transmission shaft, a first bevel gear is arranged on the outer side of the second transmission shaft, the second transmission shaft is connected with the shell through a shaft seal, a plurality of second bevel gears are arranged at one end of the first bevel gear, and a first transmission shaft is arranged at one end of each second bevel gear, a plurality of the one end of first transmission shaft all is provided with the second dish board, the surface of second transmission shaft is provided with recess and stopper, the outside of recess is provided with the dead lever, the bottom of dead lever is provided with the fixing base, the bottom of shell is provided with the base.
Preferably, the fixed pipe is connected with the housing and the base through the shaft seal, and the fixed pipe is connected with the second transmission shaft through the shaft seal.
Preferably, the bottom end of the second transmission shaft is in a bevel gear shape, an included angle of 90 degrees is formed between the second bevel gear and the first bevel gear, the second bevel gear is connected with the first bevel gear through a gear, and the first bevel gear is fixed inside the first disc plate through a bearing and a fixing shaft.
Preferably, the thickness of the first disc plate is at least 6cm, the length of the first bevel gear is 3-4cm, both ends of the first bevel gear are in a gear shape, and the plurality of second bevel gears are connected with the shell through rotating shafts.
Preferably, the fixing seat is connected with the fixing rod through electric welding, and the distance between the fixing rod and the groove is smaller than the height of the limiting block.
Preferably, the fixed pipe with first dish fixed connection, the second hand wheel with the second transmission shaft passes through electric welding and connects, the diameter of second hand wheel is at least for five times the diameter of second transmission shaft.
Preferably, the transmission mechanism comprises a transmission gear, a rotating shaft and a bearing.
Preferably, during the use, install the inside at the pipeline with the valve body, then rotatory first hand wheel, it is rotatory to drive fixed pipe through the gear on first gearbox and fixed pipe top, then it is rotatory to drive first dish, realize the first closure of valve, then through rotatory second hand wheel, it is rotatory to drive the secondary drive axle, the secondary drive axle drives a plurality of second bevel gear rotations through first bevel gear, then it is rotatory to drive a plurality of first transmission shafts, a plurality of first transmission shafts drive the second dish rotation, realize closing completely of valve.
(III) advantageous effects
The invention provides a high-flexibility strong-erosion-resistant butterfly valve, which has the following beneficial effects:
1. this resistant strong erosion butterfly valve of high flexibility, through setting up a plurality of second dish boards, first dish board thickness is 6cm at least, makes the closing of valve body need two steps to accomplish, has not only reduced the biggest flow resistance of closing the valve, has improved the flexibility of valve body, and the change looks has increased the resistant strong erosion ability of butterfly valve moreover, has improved the application scope and the market competition of butterfly valve.
2. This resistant strong erosion butterfly valve of high flexibility sets up recess and stopper through the surface at the secondary drive axle to and set up dead lever and fixing base in the inside of fixed pipe, the size of the distance between dead lever and the recess is less than the size of stopper height, provides the restriction when the rotation of secondary drive axle reaches the maximum value, avoids the valve body to close not tight phenomenon and takes place.
3. This resistant strong erosion butterfly valve of high flexibility through setting up first bevel gear and second bevel gear, can become horizontal pivoted kinetic energy with the vertical rotatory kinetic energy of second hand wheel, has realized the conversion of power direction, the rotation of a plurality of second dish boards of being convenient for, and second bevel gear passes through the pivot and is connected with the shell moreover, has improved second dish board pivoted stability.
4. This resistant strong erosion butterfly valve of high flexibility, through setting up first dish board, first dish board thickness is 6cm at least, first bevel gear's length is 3-4cm, first bevel gear's both ends are the gear form, a plurality of second bevel gears are connected with the shell through the pivot, can be with the complete inside of accomodating into first dish board of first bevel gear and second bevel gear, first transmission shaft passes through the bearing seal with first dish board and is connected, the holistic leakproofness of valve body has been improved, then the sealed precision of valve body has been increased, the application range of valve body has been improved.
5. This resistant strong erosion butterfly valve of high flexibility, through setting up the second hand wheel, the diameter of second hand wheel is five times of second transmission shaft diameter at least, can learn according to lever principle, and the torsion of applying at the second hand wheel is for applying five times at second transmission shaft surperficial torsion for after first dish is closed, a plurality of second dishes of closing of more laborsaving.
Drawings
FIG. 1 is a schematic view of the overall structure of the device body of the present invention;
FIG. 2 is a schematic cross-sectional view of the housing of the device body of the present invention;
FIG. 3 is a schematic view of the overall structure of the fixing tube of the device body according to the present invention;
FIG. 4 is a schematic view of the internal structure of the fixing tube of the device body according to the present invention;
fig. 5 is a schematic view of the internal structure of the second transmission case of the device body of the present invention.
In the figure: 1-valve body, 2-transmission mechanism, 3-first gearbox, 4-first hand wheel, 5-shell, 6-first dish plate, 7-second hand wheel, 8-base, 9-second dish plate, 10-shaft seal, 11-gear, 12-second gearbox, 13-first transmission shaft, 14-fixed pipe, 15-groove, 16-limiting block, 17-fixed rod, 18-fixed base, 19-first bevel gear, 20-second bevel gear and 21-second transmission shaft.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be considered as limiting the present invention. Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defined as "first", "second", may explicitly or implicitly include one or more of the described features. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; may be mechanically connected, may be electrically connected or may be in communication with each other; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.
The following disclosure provides many different embodiments or examples for implementing different features of the invention. To simplify the disclosure of the present invention, the components and arrangements of specific examples are described below. Of course, they are merely examples and are not intended to limit the present invention. Furthermore, the present invention may repeat reference numerals and/or letters in the various examples, such repetition is for the purpose of simplicity and clarity and does not in itself dictate a relationship between the various embodiments and/or configurations discussed. In addition, the present invention provides examples of various specific processes and materials, but one of ordinary skill in the art may recognize applications of other processes and/or uses of other materials.
The embodiment of the invention provides a high-flexibility strong-erosion-resistant butterfly valve, which comprises a valve body 1, wherein a transmission mechanism 2 is arranged on the surface of the valve body 1, a shell 5 is arranged at the bottom end of the transmission mechanism 2, a first gearbox 3 is arranged on one side of the transmission mechanism 2, a first hand wheel 4 is arranged at one end of the first gearbox 3, a first disc 6 is arranged inside the shell 5, a fixed pipe 14 is arranged inside the first disc 6, the first gearbox 3 is connected with the top end of the fixed pipe 14 through a gear 11, a second transmission shaft 21 is arranged inside the fixed pipe 14, a second hand wheel 7 is arranged at the top end of the second transmission shaft 21, a second gearbox 12 is arranged at the bottom end of the second transmission shaft 21, a first bevel gear 19 is arranged outside the second transmission shaft 21, the second transmission shaft 21 is connected with the shell 5 through a shaft seal 10, and a plurality of second bevel gears 20 are arranged at, one end of each of the second bevel gears 20 is provided with a first transmission shaft 13, one end of each of the first transmission shafts 13 is provided with a second disc plate 9, the surface of each of the second transmission shafts 21 is provided with a groove 15 and a limiting block 16, the outer side of each groove 15 is provided with a fixing rod 17, the bottom end of each fixing rod 17 is provided with a fixing seat 18, and the bottom end of the shell 5 is provided with a base 8.
During the use, install the inside at the pipeline with valve body 1, then rotatory first wheel 4, gear 11 through first gearbox 3 and fixed 14 tops of tubes drives fixed 14 rotations of tubes, then it is rotatory to drive first dish 6, realize the first time of valve and close, then through rotatory second wheel 7, it is rotatory to drive second transmission shaft 21, second transmission shaft 21 drives a plurality of second bevel gears 20 through first bevel gear 19 and rotates, then it is rotatory to drive a plurality of first transmission shafts 13, a plurality of first transmission shafts 13 drive the rotation of second dish 9, realize closing completely of valve.
To sum up, this resistant strong erosion butterfly valve of high flexibility through setting up a plurality of second dish boards 9, and the thickness of first dish 6 is 6cm at least, makes the closing of valve body 1 need two steps to accomplish, has not only reduced the biggest flow resistance of closing the valve, has improved the flexibility of valve body 1, and the resistant strong erosion ability of butterfly valve has been increased in the change phase moreover, has improved the application scope and the market competition of butterfly valve.
Secondly, through setting up recess 15 and stopper 16 on the surface of second transmission shaft 21 to and set up dead lever 17 and fixing base 18 in the inside of fixed pipe 14, the size of the distance between dead lever 17 and the recess 15 is less than the size of stopper 16 height, provides the restriction when the rotation of second transmission shaft 21 reaches the maximum value, avoids valve body 1 to close not tight phenomenon and takes place.
And, through setting up first bevel gear 19 and second bevel gear 20, can become the kinetic energy of horizontal pivoted with the vertical rotatory kinetic energy of second hand wheel 7, realized the conversion of power direction, be convenient for the rotation of a plurality of second dishes 9, second bevel gear 20 is connected with shell 5 through the pivot in addition, has improved second dish 9 pivoted stability.
And, through setting up first dish 6, the thickness of first dish 6 is 6cm at least, first bevel gear 19's length is 3-4cm, first bevel gear 19's both ends are the gear form, a plurality of second bevel gears 20 are connected with shell 5 through the pivot, can be with first bevel gear 19 and the complete inside of accomodating into first dish 6 of second bevel gear 20, first transmission shaft 13 passes through bearing seal 10 with first dish 6 and is connected, the holistic leakproofness of valve body 1 has been improved, then the sealing precision of valve body 1 has been increased, the application range of valve body 1 has been improved.
Moreover, by arranging the second hand wheel 7, the diameter of the second hand wheel 7 is at least five times of the diameter of the second transmission shaft 21, and the torque force applied to the second hand wheel 7 is five times of the torque force applied to the surface of the second transmission shaft 21 according to the lever principle, so that after the first disc 6 is closed, the second discs are closed more laborsavingly.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (5)
1. The utility model provides a high flexibility is able to bear or endure strong erosion butterfly valve, includes valve body (1), its characterized in that: the surface of the valve body (1) is provided with a transmission mechanism (2), the bottom end of the transmission mechanism (2) is provided with a shell (5), one side of the transmission mechanism (2) is provided with a first gearbox (3), one end of the first gearbox (3) is provided with a first hand wheel (4), the inside of the shell (5) is provided with a first butterfly plate (6), the inside of the first butterfly plate (6) is provided with a fixed pipe (14), the first gearbox (3) is connected with the top end of the fixed pipe (14) through a gear (11), the inside of the fixed pipe (14) is provided with a second transmission shaft (21), the top end of the second transmission shaft (21) is provided with a second hand wheel (7), the bottom end of the second transmission shaft (21) is provided with a second gearbox (12), and the second gearbox (12) comprises a first bevel gear (19) and a plurality of second bevel gears (20), the outer side of the second transmission shaft (21) is provided with a first bevel gear (19), the fixed pipe (14) is connected with the second transmission shaft (21) through a shaft seal (10), one end of the first bevel gear (19) is provided with a plurality of second bevel gears (20), the one ends of the second bevel gears (20) are provided with a first transmission shaft (13) and a plurality of second butterfly plates (9), the surface of the second transmission shaft (21) is provided with grooves (15) and limiting blocks (16), the outer side of each groove (15) is provided with a fixed rod (17), the bottom end of each fixed rod (17) is provided with a fixed seat (18), and the bottom end of the shell (5) is provided with a base (8).
2. The high flexibility strong erosion resistant butterfly valve of claim 1, wherein: the bottom end of the second transmission shaft (21) is in a bevel gear shape, an included angle of 90 degrees is formed between the second bevel gear (20) and the first bevel gear (19), the second bevel gear (20) is connected with the first bevel gear (19) through a bevel gear, and the first bevel gear (19) is fixed inside the first butterfly plate (6) through a bearing and a fixing shaft.
3. The high flexibility strong erosion resistant butterfly valve of claim 1, wherein: the fixing seat (18) is connected with the fixing rod (17) through electric welding, and the distance between the fixing rod (17) and the groove (15) is smaller than the height of the limiting block (16).
4. The high flexibility strong erosion resistant butterfly valve of claim 1, wherein: fixed pipe (14) with first butterfly plate (6) fixed connection, second hand wheel (7) with second transmission shaft (21) pass through electric welding and connect, the diameter of second hand wheel (7) is at least for five times of second transmission shaft (21) diameter.
5. The high flexibility strong erosion resistant butterfly valve of claim 1, wherein: the transmission mechanism (2) comprises a transmission gear, a rotating shaft and a bearing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810202261.XA CN108374899B (en) | 2018-03-12 | 2018-03-12 | High-flexibility strong-erosion-resistant butterfly valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810202261.XA CN108374899B (en) | 2018-03-12 | 2018-03-12 | High-flexibility strong-erosion-resistant butterfly valve |
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| Publication Number | Publication Date |
|---|---|
| CN108374899A CN108374899A (en) | 2018-08-07 |
| CN108374899B true CN108374899B (en) | 2020-02-14 |
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| CN201810202261.XA Active CN108374899B (en) | 2018-03-12 | 2018-03-12 | High-flexibility strong-erosion-resistant butterfly valve |
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| CN112762204A (en) * | 2021-01-13 | 2021-05-07 | 傅丹丹 | Valve with auxiliary replacement mechanism |
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| JP2016176544A (en) * | 2015-03-20 | 2016-10-06 | 株式会社水道技術開発機構 | Valve device |
| CN206234373U (en) * | 2016-10-28 | 2017-06-09 | 惠安县长捷机械科技有限公司 | A kind of butterfly valve of the cavitation prevention that flows slowly |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10550945B2 (en) * | 2013-04-25 | 2020-02-04 | Ohio University | Emergency shutdown valves with bypass features |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6131771A (en) * | 1984-07-21 | 1986-02-14 | Maezawa Kogyo Kk | Double butterfly valve |
| JPS62204073A (en) * | 1986-03-04 | 1987-09-08 | Kurimoto Iron Works Ltd | Butterfly valve equipped with subsidiary valve |
| WO1991000455A1 (en) * | 1989-06-30 | 1991-01-10 | Allied-Signal Inc. | Butterfly valve method and apparatus |
| GB2441588B (en) * | 2006-09-06 | 2011-02-23 | Gt Group Ltd | Improved butterfly valve |
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| JP2016176544A (en) * | 2015-03-20 | 2016-10-06 | 株式会社水道技術開発機構 | Valve device |
| CN205315733U (en) * | 2016-01-20 | 2016-06-15 | 安徽铜陵科力阀门有限责任公司 | Binary channels butterfly valve |
| CN205618787U (en) * | 2016-05-18 | 2016-10-05 | 浙江盟洲阀门有限公司 | Butterfly valve |
| CN206234373U (en) * | 2016-10-28 | 2017-06-09 | 惠安县长捷机械科技有限公司 | A kind of butterfly valve of the cavitation prevention that flows slowly |
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| CN108374899A (en) | 2018-08-07 |
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Effective date of registration: 20200114 Address after: No. 88, Lianxing East Road, Dajia Industrial Zone, Oubei Town, Yongjia County, Wenzhou City, Zhejiang Province 325102 Applicant after: Tiangong Valve Group Co., Ltd. Address before: 450002 Henan Province, Zhengzhou City Red Road No. 5 Hua City home building 1 unit 502 Applicant before: Shi Yingnan |
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