CN111350830A - Butterfly valve - Google Patents
Butterfly valve Download PDFInfo
- Publication number
- CN111350830A CN111350830A CN202010220928.6A CN202010220928A CN111350830A CN 111350830 A CN111350830 A CN 111350830A CN 202010220928 A CN202010220928 A CN 202010220928A CN 111350830 A CN111350830 A CN 111350830A
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- Prior art keywords
- valve
- cavity
- handle
- positioning
- loop bar
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- Pending
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- 238000007789 sealing Methods 0.000 claims abstract description 12
- 238000009434 installation Methods 0.000 description 7
- 230000001276 controlling effect Effects 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 238000005299 abrasion Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 2
- 238000005034 decoration Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000008676 import Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012856 packing Methods 0.000 description 2
- 238000010009 beating Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
Images
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
- 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
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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
- F16K1/2261—Shaping or arrangements of the sealing the sealing being arranged on the valve member
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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
- F16K39/00—Devices for relieving the pressure on the sealing faces
- F16K39/02—Devices for relieving the pressure on the sealing faces for lift valves
- F16K39/028—Devices for relieving the pressure on the sealing faces for lift valves with pivoted closure members, e.g. butterfly valves
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Lift Valve (AREA)
Abstract
The invention discloses a butterfly valve, which comprises a valve body, wherein a channel is arranged in the valve body, the left end of the channel is an inlet, and the right end of the channel is an outlet; the end face of the valve plate is provided with an upper lug, a rotating shaft hole with one open end is formed in the upper lug, and the loop bar extends into the rotating shaft hole and is fixedly connected with the upper lug; a fan-shaped cutting groove is formed in one end, extending into the rotating shaft hole, of the sleeve rod, a shaft rod is rotatably connected in the sleeve rod, and a stop block extending into the fan-shaped cutting groove is arranged on the side face of the shaft rod in an extending mode; the stop block divides the fan-shaped cutting groove into a first chamber and a second chamber; a mounting cavity is arranged in the valve plate, and a stop valve core is arranged in the mounting cavity; the butterfly valve can reduce the torque and the friction force of the sealing ring when the butterfly valve is opened, and further is convenient to use and prolongs the service life.
Description
Technical Field
The invention belongs to the technical field of pipeline valves, and particularly relates to a butterfly valve.
Background
The butterfly valve is also called a flap valve, is a regulating valve with simple structure, and mainly plays a role in cutting off and throttling on a pipeline. The butterfly valve opening and closing piece is a disc-shaped turning plate and rotates around the axis of the butterfly valve opening and closing piece in the valve body, so that the opening and closing or adjusting purpose is achieved. However, the leakage problem often occurs due to the structural characteristics of the valve plate in the use process of a common butterfly valve, and the valve plate of the butterfly valve can generate serious friction with the sealing element in the overturning process, so that the abrasion of the sealing element is serious, and the service life of the butterfly valve is seriously influenced. When the butterfly valve is used for a large-diameter pipeline, particularly under a high-pressure working condition, the pressure generated by a medium in the pipeline on the butterfly plate is very large, when the butterfly valve is opened, the torque borne by the valve rod is very large, the torque when the valve is required to be opened is also very large, and the output torque of a matched driving device is correspondingly very large, so that the structure of the valve is huge; when the valve body is opened from a closed state, because the pressure in the valve body is high, a worker can still have high torque when pulling the handle, the handle is difficult to open, and high working difficulty is brought to the worker.
Disclosure of Invention
The invention aims to provide a butterfly valve, which can reduce the torque and the friction force of a sealing ring when the butterfly valve is opened, thereby being convenient to use and prolonging the service life.
In order to achieve the purpose, the invention provides the following technical scheme:
a butterfly valve comprises a valve body, wherein a channel is arranged in the valve body, the left end of the channel is an inlet, the right end of the channel is an outlet, the side surface of the valve body is rotatably connected with a loop bar, one end of the loop bar extends into the channel, the other end of the loop bar extends out of the valve body and is fixedly provided with a first handle, one end of the loop bar extending into the channel is provided with a valve plate assembly used for controlling the on-off of the channel, the valve plate assembly comprises a valve plate, and the circumferential side surface of the valve plate is provided with a rubber sleeve capable of expanding and retracting; an expansion cavity is formed between the rubber cylinder and the circumferential side surface of the valve plate;
the valve plate is internally provided with a mounting cavity, a first through-flow hole for communicating the mounting cavity with the inlet and a second through-flow hole for communicating the mounting cavity with the outlet, a stop valve core matched with the first through-flow hole for controlling the on-off of the inlet and the outlet is arranged in the mounting cavity in a sliding manner, a plug is detachably arranged at the opening of the mounting cavity, a control cavity is formed between the stop valve core and the plug in the mounting cavity, and the control cavity is communicated with the expansion cavity;
the end face of the valve plate is provided with an upper lug, a rotating shaft hole with one open end is formed in the upper lug, and the loop bar extends into the rotating shaft hole and is fixedly connected with the upper lug; the sleeve rod is provided with a fan-shaped cutting groove at one end extending into the rotating shaft hole, a shaft lever is rotationally connected in the sleeve rod, the upper end of the shaft lever extends out of the sleeve rod and is fixedly provided with a second handle, a stop block extending into the fan-shaped cutting groove is arranged on the side surface of the shaft lever in an extending mode, and the stop block is connected between one end far away from the shaft lever and the inner side wall of the rotating shaft hole in a sliding mode; the baffle plate divides the fan-shaped cutting groove into a first chamber and a second chamber, the first chamber is communicated with the expansion cavity and the control cavity, and the second chamber is communicated with the outlet;
when the stop block rotates towards the direction of the first cavity, the pressure in the first cavity rises, the rubber cylinder expands and the stop valve core blocks the first through hole, and when the stop block rotates towards the direction of the second cavity, the pressure in the first cavity falls, the rubber cylinder contracts and the stop valve core opens the first through hole. In a further technical scheme, a first through hole for communicating the first cavity with the expansion cavity is formed in the valve plate; and a second through hole communicated with the second cavity is formed in the upper lug.
In a further technical scheme, a first through hole for communicating the first cavity chamber with the expansion cavity and the control cavity is formed in the valve plate; and a second through hole communicated with the second cavity is formed in the upper lug.
In a further technical scheme, the stop valve core comprises a main body section and a cone head section which are sequentially connected, the main body section is in sliding fit with the installation cavity, and the cone head section is matched with the first through hole to control the on-off of the first through hole.
In a further technical scheme, a convex column is arranged on the side face of the valve body, a mounting groove is formed in the outer side of the sleeve rod in the convex column, a sealing ring sleeved on the sleeve rod is arranged in the mounting groove, a plug sleeved on the sleeve rod is fixedly mounted at an opening at the upper end of the mounting groove, and the plug is used for preventing the sealing ring from being separated from the mounting groove.
In a further technical scheme, a first positioning disc is fixedly mounted on the plug, a first positioning groove is formed in the side face of the outer circumference of the first positioning disc, a first positioning handle is hinged to the first handle, a compressed first spring is arranged between the first positioning handle and the first handle, and the first spring is used for forcing one end of the first positioning handle to extend into the space between the first positioning grooves.
In a further technical scheme, a second positioning disc is fixedly mounted on the upper end face of the loop bar, a second positioning groove is formed in the outer circumferential side face of the second positioning disc, a second positioning handle is hinged to the second handle, a compressed second spring is arranged between the second positioning handle and the second handle, and the second spring is used for forcing one end of the second positioning handle to extend into the space between the second positioning grooves.
Advantageous effects
Compared with the prior art, the technical scheme of the invention has the following advantages:
(1) when the butterfly valve is closed, the elastic rubber cylinder expansion cavity is filled with liquid and pressurized to expand the elastic rubber cylinder expansion cavity, so that the butterfly valve has a better sealing effect; when the butterfly valve is opened, the medium pressure in the rubber cylinder is reduced, the rubber cylinder shrinks to reduce the friction between the rubber cylinder and the wall of the butterfly valve pipe in the rotation process of the valve plate, the abrasion of the rubber cylinder is reduced, and the service life is prolonged.
(2) When the butterfly valve is opened, the pressure in the control cavity is reduced, so that the stop valve core is opened under the action of the inlet pressure, the inlet is communicated with the outlet firstly, the pressure in the inlet can be unloaded in advance, then the valve plate is rotated, the opening torque can be reduced, and the butterfly valve is convenient to operate.
Drawings
FIG. 1 is a cross-sectional view of the present invention;
fig. 2 is a sectional view taken along a-a in fig. 1.
Detailed Description
Referring to fig. 1-2, a butterfly valve includes a valve body 1, a passage is provided in the valve body 1, an inlet a is provided at the left end of the passage, an outlet B is provided at the right end of the passage, a loop rod 4 with one end extending into the passage is rotatably connected to the side surface of the valve body 1, the other end of the loop rod 4 extends out of the valve body 1 and is fixedly provided with a first handle 6, a valve plate 2 assembly for controlling the opening and closing of the passage is provided at one end of the loop rod 4 extending into the passage, the valve plate 2 assembly includes a valve plate 2, and a rubber sleeve 21 capable of expanding and retracting is provided at the circumferential side surface of the valve plate 2; an expansion chamber 2a is formed between the rubber cylinder 21 and the circumferential side surface of the valve plate 2.
Be equipped with the installation cavity 201 in the valve plate 2, be used for the intercommunication installation cavity 201 with import A's first through-flow hole 22 and be used for the intercommunication installation cavity 201 with export B's second through-flow hole 23, it cooperatees with control import A and export B break-make by case 3 with first through-flow hole 22 to slide in the installation cavity 201 to be equipped with, the opening part detachable of installation cavity 201 is equipped with plug 10 in the installation cavity 201, end case 3 with be formed with control chamber 2B between plug 10, control chamber 2B with expansion chamber 2a is linked together.
The end face of the valve plate 2 is provided with an upper lug, a rotating shaft hole with an opening at one end is arranged in the upper lug, and the loop bar 4 extends into the rotating shaft hole and is fixedly connected with the upper lug; a fan-shaped cutting groove 41 is formed in one end, extending into the rotating shaft hole, of the sleeve rod 4, a shaft rod 5 is connected in the sleeve rod 4 in a rotating mode, the upper end of the shaft rod 5 extends out of the sleeve rod 4 and is fixedly provided with a second handle 7, a stop block 51 extending into the fan-shaped cutting groove 41 is arranged on the side face of the shaft rod 5 in an extending mode, and the stop block is connected between one end, far away from the shaft rod 5, of the stop block and the inner side wall of the rotating shaft; the stop 51 divides the sector-shaped incision into a first chamber communicating with the expansion chamber 2a and the control chamber 2B, and a second chamber communicating with the outlet B.
When the stopper 51 rotates in the first chamber direction, the pressure in the first chamber rises, the packing cylinder 21 expands, and the shutoff valve body 3 blocks the first through-hole 22, and when the stopper 51 rotates in the second chamber direction, the pressure in the first chamber falls, and the packing cylinder 21 contracts, and the shutoff valve body 3 opens the first through-hole 22.
Wherein, a first through hole for communicating the first chamber with the expansion cavity 2a and the control cavity 2b is arranged in the valve plate 2; and a second through hole communicated with the second cavity is formed in the upper lug.
The stop valve core 3 comprises a main body section and a conical head section which are sequentially connected, the main body section is in sliding fit with the mounting cavity 201, and the conical head section is matched with the first through flow hole 22 to control the on-off of the first through flow hole 22.
The side of valve body 1 is equipped with the projection, the inherent outside of loop bar 4 of projection is equipped with mounting groove 101, be equipped with the sealing washer 11 of cup jointing on loop bar 4 in the mounting groove 101, the upper end opening part fixed mounting of mounting groove 101 has the plug 10 of cup jointing on loop bar 4, plug 10 is used for preventing that sealing washer 11 breaks away from mounting groove 101.
The plug 10 is fixedly provided with a first positioning disk 8, the outer circumferential side surface of the first positioning disk 8 is provided with a first positioning groove, the first handle 6 is hinged with a first positioning handle 61, a compressed first spring 62 is arranged between the first positioning handle 61 and the first handle 6, and the first spring 62 is used for forcing one end of the first positioning handle 61 to extend into the first positioning groove.
A second positioning disc 9 is fixedly mounted on the upper end face of the loop bar 4, a second positioning groove is formed in the outer circumferential side face of the second positioning disc 9, a second positioning handle 71 is hinged to the second handle 7, a compressed second spring 72 is arranged between the second positioning handle 71 and the second handle 7, and the second spring 72 is used for forcing one end of the second positioning handle 71 to extend into the second positioning groove.
As shown in fig. 1, the butterfly valve of the present invention has a simple structure, and when it is assembled, a certain volume of liquid medium is filled into the first chamber 5a, the control chamber 2b and the expansion chamber 2a, so as to control the contraction and expansion of the rubber cylinder 21 and the opening and closing of the spool 3 by the pressure change of the liquid medium.
When the butterfly valve needs to be opened, the second positioning handle 71 needs to be pinched firstly, so that one end of the second positioning handle 71 is separated from the second positioning groove of the second positioning disc 9, the second handle 7 is rotated to drive the shaft rod 5 to rotate, the stop block 51 is driven to rotate towards the direction of the second chamber 5B through the rotation of the shaft rod 5, at the moment, the pressure of the internal medium is reduced due to the increase of the first chamber 5a, the pressure of the control cavity 2B is reduced, the rubber barrel 21 is contracted, the medium of the inlet A acts on the stop valve core 3 to open the first through flow hole 22, the inlet A is communicated with the outlet B, the pressure of the inlet A is reduced, and the torque generated by the pressure in the channel acting on the valve plate 2 is greatly reduced. When the stop 51 abuts against one end of the sector-shaped cutting groove 41, the second positioning handle 71 is released, and one end of the second positioning handle 71 extends into the second positioning groove under the action of the second spring 72; then pinch the first location handle 61 tightly for the one end of first location handle 61 breaks away from the first positioning groove of first positioning disk 8, then rotates first handle 6, drives the rotation of loop bar 4 and then the valve plate 2 of beating is rotatory, stops after valve plate 2 rotates and opens the valve port completely, and the butterfly valve is opened completely this moment.
When the butterfly valve need be closed, need pinch tight first location handle 61 for the one end of first location handle 61 breaks away from the first positioning groove of first positioning disk 8, gyration first handle 6 drives loop bar 4 gyration and then drives valve plate 2 gyration, the volume of first cavity 5a can not dwindle this moment, after valve plate 2 gyration closed position, loosen first location handle 61, under the effort of first spring 62, the one end of first location handle 61 stretches into between the first positioning groove. The second positioning handle 71 is pinched, so that one end of the second positioning handle 71 is separated from a second positioning groove of the second positioning disk 9, the second handle 7 is rotated to drive the shaft rod 5 to rotate, the stop block 51 is driven to rotate towards the first cavity 5a through the rotation of the shaft rod 5, at the moment, the first cavity 5a is reduced, the pressure of the internal medium is transmitted to the control cavity 2b and the expansion cavity 2a, the stop valve core 3 is enabled to close the first through flow hole 22 and expand the rubber cylinder 21, the valve body 1 is sealed, when the stop block 51 abuts against the other end of the fan-shaped cutting groove 41, the second handle 7 is stopped, at the moment, the first cavity 5a is reduced to the minimum, the pressure in the cavity is increased to the maximum, the sealing degree of the rubber cylinder 21 is maximized, and the butterfly valve is.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the technical principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.
Claims (6)
1. A butterfly valve is characterized by comprising a valve body, wherein a channel is arranged in the valve body, the left end of the channel is an inlet, the right end of the channel is an outlet, the side surface of the valve body is rotatably connected with a loop bar, one end of the loop bar extends into the channel, the other end of the loop bar extends out of the valve body and is fixedly provided with a first handle, one end of the loop bar extending into the channel is provided with a valve plate assembly used for controlling the on-off of the channel, the valve plate assembly comprises a valve plate, and the circumferential side surface of the valve plate is provided with a rubber sleeve capable of expanding and retracting; an expansion cavity is formed between the rubber cylinder and the circumferential side surface of the valve plate;
the valve plate is internally provided with a mounting cavity, a first through-flow hole for communicating the mounting cavity with the inlet and a second through-flow hole for communicating the mounting cavity with the outlet, a stop valve core matched with the first through-flow hole for controlling the on-off of the inlet and the outlet is arranged in the mounting cavity in a sliding manner, a plug is detachably arranged at the opening of the mounting cavity, a control cavity is formed between the stop valve core and the plug in the mounting cavity, and the control cavity is communicated with the expansion cavity;
the end face of the valve plate is provided with an upper lug, a rotating shaft hole with one open end is formed in the upper lug, and the loop bar extends into the rotating shaft hole and is fixedly connected with the upper lug; the sleeve rod is provided with a fan-shaped cutting groove at one end extending into the rotating shaft hole, a shaft lever is rotationally connected in the sleeve rod, the upper end of the shaft lever extends out of the sleeve rod and is fixedly provided with a second handle, a stop block extending into the fan-shaped cutting groove is arranged on the side surface of the shaft lever in an extending mode, and the stop block is connected between one end far away from the shaft lever and the inner side wall of the rotating shaft hole in a sliding mode; the baffle plate divides the fan-shaped cutting groove into a first chamber and a second chamber, the first chamber is communicated with the expansion cavity and the control cavity, and the second chamber is communicated with the outlet;
when the stop block rotates towards the direction of the first cavity, the pressure in the first cavity rises, the rubber cylinder expands and the stop valve core blocks the first through hole, and when the stop block rotates towards the direction of the second cavity, the pressure in the first cavity falls, the rubber cylinder contracts and the stop valve core opens the first through hole.
2. The butterfly valve of claim 1, wherein a first through hole is provided in the valve plate for communicating the first chamber with the expansion chamber and the control chamber; and a second through hole communicated with the second cavity is formed in the upper lug.
3. The butterfly valve of claim 2, wherein the shut-off valve comprises a main body section and a conical head section which are connected in sequence, the main body section is in sliding fit with the mounting cavity, and the conical head section is matched with the first through-flow hole to control the on-off of the first through-flow hole.
4. The butterfly valve according to claim 1, wherein a convex column is disposed on a side surface of the valve body, a mounting groove is disposed inside the convex column and outside the loop bar, a sealing ring sleeved on the loop bar is disposed inside the mounting groove, a plug sleeved on the loop bar is fixedly mounted at an opening at an upper end of the mounting groove, and the plug is used for preventing the sealing ring from separating from the mounting groove.
5. The butterfly valve of claim 4, wherein the plug is fixedly provided with a first positioning plate, a first positioning groove is formed in the outer circumferential side of the first positioning plate, the first handle is hinged with a first positioning handle, a compressed first spring is arranged between the first positioning handle and the first handle, and the first spring is used for forcing one end of the first positioning handle to extend into the first positioning groove.
6. The butterfly valve of claim 4, wherein a second positioning plate is fixedly mounted on the upper end surface of the loop bar, a second positioning groove is formed in the outer circumferential side surface of the second positioning plate, a second positioning handle is hinged to the second handle, a compressed second spring is arranged between the second positioning handle and the second handle, and the second spring is used for forcing one end of the second positioning handle to extend into the second positioning groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010220928.6A CN111350830A (en) | 2020-03-26 | 2020-03-26 | Butterfly valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010220928.6A CN111350830A (en) | 2020-03-26 | 2020-03-26 | Butterfly valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111350830A true CN111350830A (en) | 2020-06-30 |
Family
ID=71193098
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010220928.6A Pending CN111350830A (en) | 2020-03-26 | 2020-03-26 | Butterfly valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111350830A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114263751A (en) * | 2021-12-11 | 2022-04-01 | 李岸隆 | Scour prevention butterfly valve |
| CN117189885A (en) * | 2023-11-06 | 2023-12-08 | 德阳市东方恒运电机有限公司 | Butterfly valve with protection device |
Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5480123A (en) * | 1993-11-24 | 1996-01-02 | Rotatrol Ag | Butterfly type control valve |
| RU2073152C1 (en) * | 1993-12-07 | 1997-02-10 | Общество с ограниченной ответственностью "Техарм" | Stop-control straight flow valve and method of its assembling |
| JP2001336643A (en) * | 2000-05-29 | 2001-12-07 | Nishi Nippon Sekkei Kogyo Kk | Seal device for double water seal butterfly valve and its safety lock device |
| CN203604679U (en) * | 2013-12-05 | 2014-05-21 | 中亚阀门有限公司 | Hydraulic plunger type parallel opening flat gate valve |
| CN104613183A (en) * | 2015-02-15 | 2015-05-13 | 江苏神通阀门股份有限公司 | High-pressure butterfly valve |
| CN104806771A (en) * | 2015-04-18 | 2015-07-29 | 温州巴尔阀门有限公司 | Pneumatic expansion butterfly valve |
| CN207297908U (en) * | 2017-08-16 | 2018-05-01 | 江苏大唐国际吕四港发电有限责任公司 | A kind of new sea water resistance electric butterfly valve |
| CN108317288A (en) * | 2017-01-16 | 2018-07-24 | 天津贝特尔流体控制阀门有限公司 | Butterfly valve type safety cut-off valve |
| CN109854760A (en) * | 2019-04-03 | 2019-06-07 | 成都五环特种设备制造有限公司 | Guide balanced type butterfly valve |
| CN109899534A (en) * | 2019-04-04 | 2019-06-18 | 杭州蓝圣阀门有限公司 | A kind of butterfly valve |
| CN110425301A (en) * | 2019-08-22 | 2019-11-08 | 孙庆峰 | A kind of fluid conveying flow control regulating valve |
| CN110657245A (en) * | 2019-10-10 | 2020-01-07 | 徐辉 | Butterfly valve with enhanced sealing performance |
-
2020
- 2020-03-26 CN CN202010220928.6A patent/CN111350830A/en active Pending
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5480123A (en) * | 1993-11-24 | 1996-01-02 | Rotatrol Ag | Butterfly type control valve |
| RU2073152C1 (en) * | 1993-12-07 | 1997-02-10 | Общество с ограниченной ответственностью "Техарм" | Stop-control straight flow valve and method of its assembling |
| JP2001336643A (en) * | 2000-05-29 | 2001-12-07 | Nishi Nippon Sekkei Kogyo Kk | Seal device for double water seal butterfly valve and its safety lock device |
| CN203604679U (en) * | 2013-12-05 | 2014-05-21 | 中亚阀门有限公司 | Hydraulic plunger type parallel opening flat gate valve |
| CN104613183A (en) * | 2015-02-15 | 2015-05-13 | 江苏神通阀门股份有限公司 | High-pressure butterfly valve |
| CN104806771A (en) * | 2015-04-18 | 2015-07-29 | 温州巴尔阀门有限公司 | Pneumatic expansion butterfly valve |
| CN108317288A (en) * | 2017-01-16 | 2018-07-24 | 天津贝特尔流体控制阀门有限公司 | Butterfly valve type safety cut-off valve |
| CN207297908U (en) * | 2017-08-16 | 2018-05-01 | 江苏大唐国际吕四港发电有限责任公司 | A kind of new sea water resistance electric butterfly valve |
| CN109854760A (en) * | 2019-04-03 | 2019-06-07 | 成都五环特种设备制造有限公司 | Guide balanced type butterfly valve |
| CN109899534A (en) * | 2019-04-04 | 2019-06-18 | 杭州蓝圣阀门有限公司 | A kind of butterfly valve |
| CN110425301A (en) * | 2019-08-22 | 2019-11-08 | 孙庆峰 | A kind of fluid conveying flow control regulating valve |
| CN110657245A (en) * | 2019-10-10 | 2020-01-07 | 徐辉 | Butterfly valve with enhanced sealing performance |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114263751A (en) * | 2021-12-11 | 2022-04-01 | 李岸隆 | Scour prevention butterfly valve |
| CN117189885A (en) * | 2023-11-06 | 2023-12-08 | 德阳市东方恒运电机有限公司 | Butterfly valve with protection device |
| CN117189885B (en) * | 2023-11-06 | 2024-01-09 | 德阳市东方恒运电机有限公司 | Butterfly valve with protection device |
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