CN107504198A - A kind of butterfly valve featuring two-way metallic seal of bellows - Google Patents
A kind of butterfly valve featuring two-way metallic seal of bellows Download PDFInfo
- Publication number
- CN107504198A CN107504198A CN201710860823.5A CN201710860823A CN107504198A CN 107504198 A CN107504198 A CN 107504198A CN 201710860823 A CN201710860823 A CN 201710860823A CN 107504198 A CN107504198 A CN 107504198A
- Authority
- CN
- China
- Prior art keywords
- valve
- plate
- rod
- side wall
- chamber
- 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
- 230000007246 mechanism Effects 0.000 claims abstract description 17
- 238000007789 sealing Methods 0.000 description 4
- 238000001727 in vivo Methods 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 229910001338 liquidmetal Inorganic materials 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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
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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
-
- 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
-
- 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
- F16K1/48—Attaching valve members to screw-spindles
- F16K1/482—Attaching valve members to screw-spindles with a collar on the spindle or a groove in the spindle, by which a fixing element is supported, the spindle reaching into 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
- 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
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Mechanically-Actuated Valves (AREA)
- Lift Valve (AREA)
Abstract
The invention discloses a kind of butterfly valve featuring two-way metallic seal of bellows,Including valve seat,Valve seat is provided with two pieces of connecting plates,Two pieces of connecting plates are respectively arranged at the edge of the rear and front end of valve seat,The upper end of two pieces of connecting plates is provided with supporting plate,The upper end of supporting plate is provided with operating mechanism,The upper end of operating mechanism is provided with handwheel,The lower end connection valve rod of operating mechanism,The one end of valve rod away from operating mechanism is through supporting plate and extends to below,Elastic component is equipped with the left and right ends side wall of valve rod,And elastic component is located at the lower section of supporting plate,The lower end of valve rod is connected with dish plate,The front end side wall of dish plate is provided with groove,And the lower end of valve rod is located in groove,Two chambers are provided with dish plate,Two chambers are separately positioned in the dish plate at left and right sides of groove,The front end side wall of chamber is provided with the through hole of inside and outside connection,And run through in through hole and be provided with rotating bar.The present invention is conveniently replaceable dish plate, can effectively extend the service life of dish valve.
Description
Technical field
The present invention relates to butterfly valve technical field, more particularly to a kind of butterfly valve featuring two-way metallic seal of bellows.
Background technology
Butterfly valve is called flap valve, is a kind of regulating valve simple in construction, what the switch available for low pressure pipeline medium controlled
Butterfly valve refers to that closure member is disk, reaches a kind of valve of open and close around valve shaft rotation, valve can be used for control air,
The flowing of all kinds fluids such as water, steam, various Korrosionsmediums, mud, oil product, liquid metal and radiating medium.
It is main on pipeline to play cut-out and throttling action.Butterfly valve opening and closing element is a discoidal butterfly plate, around the axle of its own in valve body
Line rotates, and so as to reach the purpose for opening and closing or adjusting, the dish plate in existing butterfly valve featuring two-way metallic seal of bellows is integrally fixed at valve
It is not easy to change in vivo, uses the sealing of caused abrasion reduction and butterfly valve for a long time.
The content of the invention
The invention aims to solve shortcoming present in prior art, and a kind of bellows proposed is two-way hard close
Sealing butterfly valve.
To achieve these goals, present invention employs following technical scheme：
A kind of butterfly valve featuring two-way metallic seal of bellows, including valve seat, the valve seat are provided with two pieces of connecting plates, two pieces of connecting plates
The edge of the rear and front end of valve seat is respectively arranged at, the upper end of two pieces of connecting plates is provided with supporting plate, the supporting plate
Upper end is provided with operating mechanism, and the upper end of the operating mechanism is provided with handwheel, the lower end connection valve rod of the operating mechanism, the valve
The one end of bar away from operating mechanism is through supporting plate and extends to below, and bullet is equipped with the left and right ends side wall of the valve rod
Property part, and elastic component is located at the lower section of supporting plate, the lower end of the valve rod is connected with dish plate, is set in the front end side wall of the dish plate
It is fluted, and the lower end of valve rod is located in groove, is provided with two chambers in the dish plate, two chambers are separately positioned on recessed
In dish plate at left and right sides of groove, the front end side wall of the chamber is provided with the through hole of inside and outside connection, and runs through to be provided with through hole and turn
Lever, retainer ring is socketed with one end that the rotating bar is located at outside chamber, the side wall of the dish plate is provided with multiple fixtures,
And fixture is disposed in proximity on the dish plate of rotating bar, gear is socketed with one end that the rotating bar is located in chamber, it is described
One end slide over side walls of the remote groove of chamber is connected with movable plate, and the side wall of the movable plate is provided with rack, the chamber
The top surface of room slidably connects push rod, and the lower end of the push rod and the upper end of connecting rod are rotatablely connected, the lower end of the connecting rod
It is rotatablely connected with the upper end of movable plate, the side wall of the chamber is provided with the passage to be interlinked with groove, and the elastic component is remote
One end of valve rod is located in passage, and passage is in same level with push rod, and two valve bodies are rotatably connected on the valve seat,
And the section of valve body is semicircle, the valve body is provided with riser.
Preferably, the opening of left and right connection is equipped with two pieces of connecting plates.
Preferably, the elastic component is made up of expansion link and spring, and the expansion link is connected with valve rod, the spring socket
On expansion link.
Preferably, the rotating bar is connected with handle on one end of retainer ring.
Preferably, the fixture is made up of fixed plate and threaded rod, and the fixed plate is provided with the screw thread of left and right connection
Hole, the threaded rod are threaded in screwed hole.
In the present invention, by the way that two pieces of valve bodies are separated, swinging handle enables to valve rod to be separated with dish plate, by dish plate from valve
Take out in vivo, be easy to the replacing of dish plate, the service life of butterfly valve can not only effectively be extended by the replacing of dish plate, improve money
The utilization rate in source, and the dish plate more renewed more can effectively ensure that the sealing of butterfly valve, reduce the generation of pipe leakage
Frequency.
Brief description of the drawings
Fig. 1 is a kind of perspective view of butterfly valve featuring two-way metallic seal of bellows proposed by the present invention；
Fig. 2 is partial enlarged drawing at A in Fig. 1；
Fig. 3 is Fig. 1 positive structure schematic；
Fig. 4 is partial enlarged drawing at B in Fig. 3；
Fig. 5 is Fig. 1 overlooking the structure diagram.
In figure：1 valve seat, 2 connecting plates, 3 supporting plates, 4 operating mechanisms, 5 handwheels, 6 valve rods, 7 elastic components, 8 dish plates, 9 grooves,
10 chambers, 11 rotating bars, 12 retainer rings, 13 fixtures, 14 gears, 15 movable plates, 16 racks, 17 push rods, 18 connecting rods, 19 valves
Body, 20 risers.
Embodiment
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
Site preparation describes, it is clear that described embodiment is only part of the embodiment of the present invention, rather than whole embodiments.
Reference picture 1-5, a kind of butterfly valve featuring two-way metallic seal of bellows, including valve seat 1, valve seat 1 are provided with two pieces of connecting plates 2,
The opening of left and right connection is equipped with two pieces of connecting plates 2, is easy to pipeline to be connected through connecting plate 2 with valve body 19, two pieces of connecting plates 2
The edge of the rear and front end of valve seat 1 is respectively arranged at, the upper end of two pieces of connecting plates 2 is provided with supporting plate 3, the upper end of supporting plate 3
Provided with operating mechanism 4, this will not be described here for prior art, and the upper end of operating mechanism 4 is provided with handwheel 5, under operating mechanism 4
End connection valve rod 6, the one end of valve rod 6 away from operating mechanism 4 is through supporting plate 3 and extends to below, the left and right ends of valve rod 6
Elastic component 7 is equipped with side wall, elastic component 7 is made up of expansion link and spring, and expansion link is connected with valve rod 6, and spring, which is socketed in, to be stretched
On contracting bar, and elastic component 7 is located at the lower section of supporting plate 3, and the lower end of valve rod 6 is connected with dish plate 8, set in the front end side wall of dish plate 8
Fluted 9, and the lower end of valve rod 6 is located in groove 9.
Two chambers 10 are provided with dish plate 8, two chambers 10 are separately positioned in the dish plate 8 of the left and right sides of groove 9, chamber
10 front end side wall is provided with the through hole of inside and outside connection, and through rotating bar 11 is provided with through hole, rotating bar 11 is located at chamber 10
Retainer ring 12 is socketed with outer one end, the side wall of retainer ring 12 is provided with multiple fixing holes, when threaded rod is located in fixing hole
When effectively rotating bar 11 can be fixed, rotating bar 11 is connected with handle on one end of retainer ring 12, is easy to rotate
Rotating bar 11, the side wall of dish plate 8 is provided with multiple fixtures 13, and fixture 13 is disposed in proximity on the dish plate 8 of rotating bar 11,
Fixture 13 is made up of fixed plate and threaded rod, and fixed plate is provided with the screwed hole of left and right connection, and threaded rod is threaded in spiral shell
In pit, gear 14 is socketed with one end that rotating bar 11 is located in chamber 10, in one end side wall of the remote groove 9 of chamber 10
Movable plate 15 is slidably connected, the side wall of movable plate 15 is provided with rack 16, and the top surface of chamber 10 slidably connects push rod 17, top
The lower end of bar 17 is rotatablely connected with the upper end of connecting rod 18, and the lower end of connecting rod 18 is rotatablely connected with the upper end of movable plate 15, chamber
The side wall of room 10 is provided with the passage that is interlinked with groove 9, and the one end of elastic component 7 away from valve rod 6 be located in passage, and passage and
Push rod 17 is in same level, is rotatably connected to two valve bodies 19 on valve seat 1, and the section of valve body 19 is semicircle, two
The junction of valve body 19 is equipped with rubber layer, effectively ensures sealing when valve body 19 connects, and valve body 19 is provided with riser 20, two pieces
The connecting hole of left and right connection is equipped with the side wall of riser 20, and through bolt is provided with connecting hole, can be effective by bolt
Two valve bodies 19 are fixedly connected.
In the present invention, pipeline is connected through connecting plate 2 with valve body 19, is easy to the connection of two valve bodies with dividing by bolt
From swinging handle can drive rotating bar 11 to rotate, then band moving gear 14 rotates, and because gear 14 engages with rack 16, then drives
Movable plate 15 moves, and then drives push rod 17 to move by connecting rod 18, when push rod 17 pushes up the elastic component 7 in passage to groove
When in 9, it is easy to remove dish plate 8 from valve rod 6, is easy to the replacing of dish plate 8.
The foregoing is only a preferred embodiment of the present invention, but protection scope of the present invention be not limited thereto,
Any one skilled in the art the invention discloses technical scope in, technique according to the invention scheme and its
Inventive concept is subject to equivalent substitution or change, should all be included within the scope of the present invention.
Claims (5)
1. a kind of butterfly valve featuring two-way metallic seal of bellows, including valve seat（1）, it is characterised in that the valve seat（1）It is provided with two pieces of companies
Fishplate bar（2）, two pieces of connecting plates（2）It is respectively arranged at valve seat（1）Rear and front end edge, two pieces of connecting plates
（2）Upper end be provided with supporting plate（3）, the supporting plate（3）Upper end be provided with operating mechanism（4）, the operating mechanism（4）It is upper
End is provided with handwheel（5）, the operating mechanism（4）Lower end connection valve rod（6）, the valve rod（6）Away from operating mechanism（4）One
Hold through supporting plate（3）And extend to below, the valve rod（6）Left and right ends side wall on be equipped with elastic component（7）, and bullet
Property part（7）Positioned at supporting plate（3）Lower section, the valve rod（6）Lower end be connected with dish plate（8）, the dish plate（8）Front
Wall is provided with groove（9）, and valve rod（6）Lower end be located at groove（9）It is interior, the dish plate（8）It is interior to be provided with two chambers（10）, two
The individual chamber（10）It is separately positioned on groove（9）The dish plate of the left and right sides（8）It is interior, the chamber（10）Front end side wall on set
There is the through hole of inside and outside connection, and run through in through hole and be provided with rotating bar（11）, the rotating bar（11）Positioned at chamber（10）Outer one
Retainer ring is socketed with end（12）, the dish plate（8）Side wall be provided with multiple fixtures（13）, and fixture（13）It is arranged at
Close to rotating bar（11）Dish plate（8）On, the rotating bar（11）Positioned at chamber（10）Gear is socketed with interior one end（14）,
The chamber（10）Remote groove（9）One end slide over side walls be connected with movable plate（15）, the movable plate（15）Side
Wall is provided with rack（16）, the chamber（10）Top surface slidably connect push rod（17）, the push rod（17）Lower end and company
Extension bar（18）Upper end rotation connection, the connecting rod（18）Lower end and movable plate（15）Upper end rotation connection, the chamber
Room（10）Side wall be provided with and groove（9）The passage to interlink, the elastic component（7）Away from valve rod（6）One end positioned at logical
In road, and passage and push rod（17）In same level, the valve seat（1）On be rotatably connected to two valve bodies（19）, and valve
Body（19）Section for semicircle, the valve body（19）It is provided with riser（20）.
A kind of 2. butterfly valve featuring two-way metallic seal of bellows according to claim 1, it is characterised in that two pieces of connecting plates
（2）On be equipped with left and right connection opening.
A kind of 3. butterfly valve featuring two-way metallic seal of bellows according to claim 1, it is characterised in that the elastic component（7）By
Expansion link and spring composition, the expansion link and valve rod（6）Connection, the spring are socketed on expansion link.
A kind of 4. butterfly valve featuring two-way metallic seal of bellows according to claim 1, it is characterised in that the rotating bar（11）Lean on
Nearly retainer ring（12）One end on be connected with handle.
A kind of 5. butterfly valve featuring two-way metallic seal of bellows according to claim 1, it is characterised in that the fixture（13）By
Fixed plate and threaded rod composition, the fixed plate are provided with the screwed hole of left and right connection, and the threaded rod is threaded in screw thread
In hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710860823.5A CN107504198B (en) | 2017-09-21 | 2017-09-21 | A kind of butterfly valve featuring two-way metallic seal of bellows |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710860823.5A CN107504198B (en) | 2017-09-21 | 2017-09-21 | A kind of butterfly valve featuring two-way metallic seal of bellows |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107504198A true CN107504198A (en) | 2017-12-22 |
| CN107504198B CN107504198B (en) | 2019-02-19 |
Family
ID=60698523
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710860823.5A Active CN107504198B (en) | 2017-09-21 | 2017-09-21 | A kind of butterfly valve featuring two-way metallic seal of bellows |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107504198B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108662160A (en) * | 2018-07-07 | 2018-10-16 | 温州市欧睿阀门有限公司 | A kind of efficiently easily more bore water valves |
| CN109027269A (en) * | 2018-09-12 | 2018-12-18 | 天津腾达集团有限公司 | A kind of butterfly valve for facilitating coutroi velocity and capable of showing flow velocity |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2456271A1 (en) * | 1979-05-08 | 1980-12-05 | Verdelet Alain | Anti-binding butterfly valve - has valve seat forming frustrum of cone with axis inclined to axis of valve bore |
| JP2001032949A (en) * | 1999-07-22 | 2001-02-06 | Osame Kogyo Kk | Butterfly valve |
| CN202252007U (en) * | 2011-07-13 | 2012-05-30 | 安徽贝德泵阀科技股份有限公司 | Butterfly valve with replaceable butterfly plate |
| CN104482226A (en) * | 2014-12-11 | 2015-04-01 | 苏州福润机械有限公司 | Detachable butterfly valve |
| CN204312728U (en) * | 2014-12-11 | 2015-05-06 | 苏州福润机械有限公司 | A kind of dismountable butterfly valve |
| CN206017758U (en) * | 2016-08-26 | 2017-03-15 | 江苏苏盐阀门机械有限公司 | A kind of butterfly valve |
| CN206112116U (en) * | 2016-09-29 | 2017-04-19 | 天津市华利达阀门有限公司 | Be provided with butterfly valve of split type valve plate |
-
2017
- 2017-09-21 CN CN201710860823.5A patent/CN107504198B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2456271A1 (en) * | 1979-05-08 | 1980-12-05 | Verdelet Alain | Anti-binding butterfly valve - has valve seat forming frustrum of cone with axis inclined to axis of valve bore |
| JP2001032949A (en) * | 1999-07-22 | 2001-02-06 | Osame Kogyo Kk | Butterfly valve |
| CN202252007U (en) * | 2011-07-13 | 2012-05-30 | 安徽贝德泵阀科技股份有限公司 | Butterfly valve with replaceable butterfly plate |
| CN104482226A (en) * | 2014-12-11 | 2015-04-01 | 苏州福润机械有限公司 | Detachable butterfly valve |
| CN204312728U (en) * | 2014-12-11 | 2015-05-06 | 苏州福润机械有限公司 | A kind of dismountable butterfly valve |
| CN206017758U (en) * | 2016-08-26 | 2017-03-15 | 江苏苏盐阀门机械有限公司 | A kind of butterfly valve |
| CN206112116U (en) * | 2016-09-29 | 2017-04-19 | 天津市华利达阀门有限公司 | Be provided with butterfly valve of split type valve plate |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108662160A (en) * | 2018-07-07 | 2018-10-16 | 温州市欧睿阀门有限公司 | A kind of efficiently easily more bore water valves |
| CN109027269A (en) * | 2018-09-12 | 2018-12-18 | 天津腾达集团有限公司 | A kind of butterfly valve for facilitating coutroi velocity and capable of showing flow velocity |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107504198B (en) | 2019-02-19 |
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| PB01 | 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 | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: Corrugated pipe bidirectional hard-sealing butterfly valve Effective date of registration: 20190521 Granted publication date: 20190219 Pledgee: Tongling Yian District Financing Guarantee Center Co.,Ltd. Pledgor: Anhui Rongda Valve Co.,Ltd. Registration number: 2019340000253 |
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| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20200508 Granted publication date: 20190219 Pledgee: Tongling Yian District Financing Guarantee Center Co.,Ltd. Pledgor: Anhui Rongda Valve Co.,Ltd. Registration number: 2019340000253 |
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| PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: Corrugated pipe bidirectional hard-sealing butterfly valve Effective date of registration: 20200511 Granted publication date: 20190219 Pledgee: Tongling Yian District Financing Guarantee Center Co.,Ltd. Pledgor: Anhui Rongda Valve Co.,Ltd. Registration number: Y2020340000019 |
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Denomination of invention: A two-way hard sealing butterfly valve with bellows Effective date of registration: 20211105 Granted publication date: 20190219 Pledgee: Tongling Yian District Financing Guarantee Center Co.,Ltd. Pledgor: Anhui Rongda Valve Co.,Ltd. Registration number: Y2021340000020 |
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Denomination of invention: A bellows two-way hard seal butterfly valve Effective date of registration: 20220728 Granted publication date: 20190219 Pledgee: Tongling Yian District Financing Guarantee Center Co.,Ltd. Pledgor: Anhui Rongda Valve Co.,Ltd. Registration number: Y2022340000023 |
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Denomination of invention: A corrugated pipe bidirectional hard sealing butterfly valve Effective date of registration: 20230425 Granted publication date: 20190219 Pledgee: Tongling Yian District Financing Guarantee Center Co.,Ltd. Pledgor: Anhui Rongda Valve Co.,Ltd. Registration number: Y2023980039154 |