CN210890134U - Butterfly valve capable of being maintained on line - Google Patents
Butterfly valve capable of being maintained on line Download PDFInfo
- Publication number
- CN210890134U CN210890134U CN201921640285.XU CN201921640285U CN210890134U CN 210890134 U CN210890134 U CN 210890134U CN 201921640285 U CN201921640285 U CN 201921640285U CN 210890134 U CN210890134 U CN 210890134U
- Authority
- CN
- China
- Prior art keywords
- valve
- filter screen
- inflow pipe
- medium inflow
- flashboard
- 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.)
- Active
Links
Images
Landscapes
- Details Of Valves (AREA)
Abstract
The utility model discloses a butterfly valve which can be maintained on line, comprising a valve body, a butterfly plate and a valve rod, wherein a valve cavity is arranged in the valve body, and the thickness of a flexible sealing layer of the valve cavity is 1-3 mm; a medium inflow pipe is integrally arranged at the left end of the valve body, a flashboard slot and a filter screen slot are sequentially arranged on the medium inflow pipe from left to right, a flashboard movable cavity is arranged at the position, aligned with the flashboard slot, of the positioning lug of the medium inflow pipe, a flashboard is arranged in the flashboard movable cavity in an embedded mode, and a hand-held rod is welded on the upper end face of the flashboard; the medium inflow pipe is detachably provided with a sealing cover plate at a position right above the filter screen slot; the medium inflow pipe is located filter screen slot left side lower extreme position and is provided with the impurity collecting vat, and the impurity collecting vat is logical groove, and the lower notch of impurity collecting vat is provided with the impurity delivery pipe, and the lower extreme threaded connection of impurity delivery pipe has seal nut. Above-mentioned technical scheme, structural design is reasonable, simple structure, sealing performance are good, maintenance operations is easy, convenient to use and practicality are good.
Description
Technical Field
The utility model relates to the technical field of valves, concretely relates to butterfly valve that can maintain on line.
Background
The butterfly valve is a valve which is opened and closed by rotating a valve rod and simultaneously driving a butterfly plate to rotate.
At present, the butterfly valve seal structure is mostly the valve body and inlays the rubber disk seat, and the butterfly plate adopts stainless steel material, and the valve rod passes the stainless steel butterfly plate. When the butterfly valve is used, the valve rod drives the butterfly plate to rotate, and the rubber valve seat embedded in the valve body is extruded to play a sealing role. The sealing structure of the butterfly valve has the following defects: the valve seat is embedded on the valve body, the structure is not firm, a gap exists between the valve seat and the valve body, the valve seat is easy to deform in the installation and closing processes, leakage is caused, and the defect of increasing opening and closing torque is overcome;
in addition, current butterfly valve structural design is unreasonable, and the structure is complicated, and clearance impurity or change filter screen need dismantle whole butterfly valve from the pipeline, and it is very inconvenient to use, and maintenance operation is troublesome, and the practicality is poor.
SUMMERY OF THE UTILITY MODEL
Not enough to prior art exists, the utility model aims to provide a but online maintenance's butterfly valve that structural design is reasonable, simple structure, sealing performance are good, the maintenance operation is easy, convenient to use and practicality are good.
In order to achieve the above purpose, the utility model provides a following technical scheme: a butterfly valve capable of being maintained on line comprises a valve body, a butterfly plate and a valve rod, wherein a valve cavity is formed in the valve body, the butterfly plate is located in the valve cavity, a valve rod moving hole is vertically formed in the upper end of the valve body, the upper end of the valve rod is located outside the valve body, and the lower end of the valve rod penetrates through the valve rod moving hole and is fixedly connected with the upper end of the butterfly plate; a flexible sealing layer of the valve cavity is integrally arranged on the inner wall surface of the valve cavity, and the thickness of the flexible sealing layer of the valve cavity is 1-3 mm; a medium inflow pipe is integrally arranged at the left end of the valve body, and a fixed flange is integrally arranged at the left end of the medium inflow pipe; the medium inflow pipe is sequentially provided with a flashboard slot and a filter screen slot from left to right, a positioning lug is integrally arranged at the position of the medium inflow pipe right above the flashboard slot, a flashboard movable cavity is arranged at the position of the positioning lug aligned with the flashboard slot, a flashboard is embedded in the flashboard movable cavity, and a hand-held rod is welded on the upper end face of the flashboard; the medium inflow pipe is detachably provided with a sealing cover plate at a position right above the filter screen slot; the medium inflow pipe is located filter screen slot left side lower extreme position and is provided with the impurity collecting vat, the impurity collecting vat is logical groove, the lower notch of impurity collecting vat is provided with the impurity delivery pipe, the upper end of impurity delivery pipe sets up with medium inflow pipe's surface an organic whole, and the lower extreme threaded connection of impurity delivery pipe has seal nut.
The utility model discloses further set up to: the embedded impurity filter screen that is provided with of filter screen slot, the fixed flexible sealing layer of filter screen that is provided with on the impurity filter screen surface, the filter screen passes through the flexible sealing layer of filter screen and constitutes sealedly with the slot mouth position of filter screen slot.
The utility model discloses still further set up to: the medium inflow pipe is provided with an annular groove outside the filter screen slot opening, an O-shaped sealing ring is arranged in the annular groove, and the sealing cover plate and the outer surface of the medium inflow pipe form sealing through the O-shaped sealing ring.
The utility model discloses still further set up to: the outer surface of the gate plate is integrally provided with a layer of gate plate flexible sealing layer, and the gate plate is sealed with the inner wall surface of the gate plate insertion groove through the gate plate flexible sealing layer.
The utility model discloses still further set up to: the medium inflow pipe is a rectangular pipe, a medium through hole is formed in the middle of the medium inflow pipe, and the medium through hole is a circular hole.
The utility model discloses still further set up to: the valve cavity flexible sealing layer, the filter screen flexible sealing layer, the O-shaped sealing ring and the gate plate flexible sealing layer are all made of polytetrafluoroethylene materials or rubber materials.
The utility model has the advantages that: compared with the prior art, the structure of the butterfly plate is more reasonable, the outer surface of the butterfly plate directly passes through the flexible sealing layer of the valve cavity to form sealing with the inner wall surface of the valve cavity, a valve seat is not needed, no gap exists, the structure is simple, and the sealing performance is good; the medium inflow is cut off through the flashboard, then the impurities can be discharged by opening the sealing nut, and the impurities on the filter screen can be cleaned or the filter screen can be replaced by opening the sealing cover plate without detaching the butterfly valve; the structure design is reasonable, the structure is simple, the sealing performance is good, the maintenance operation is easy, the use is convenient, and the practicability is good.
The invention is further described with reference to the drawings and the specific embodiments.
Drawings
Fig. 1 is a schematic structural diagram of an embodiment of the present invention;
fig. 2 is an enlarged schematic view of a portion I in fig. 1.
Detailed Description
In the description of the present embodiment, it should be noted that, as the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", "front", "rear", etc. appear, the indicated orientation or positional relationship thereof is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, and does not indicate or imply that the indicated device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" as appearing herein are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
Referring to fig. 1 and 2, the utility model discloses a butterfly valve capable of being maintained online, which comprises a valve body 1, a butterfly plate 2 and a valve rod 3, wherein a valve cavity 11 is arranged in the valve body 1, the butterfly plate 2 is positioned in the valve cavity 11, a valve rod movable hole 12 is vertically arranged at the upper end of the valve body 1, the upper end of the valve rod 3 is positioned outside the valve body 1, and the lower end of the valve rod 3 is fixedly connected with the upper end of the butterfly plate 2 after passing through the valve rod movable hole 12; a valve cavity flexible sealing layer 4 is integrally arranged on the inner wall surface of the valve cavity 11, and the thickness of the valve cavity flexible sealing layer 4 is 1-3 mm; a medium inflow pipe 13 is integrally arranged at the left end of the valve body 1, and a fixed flange 131 is integrally arranged at the left end of the medium inflow pipe 13; the medium inflow pipe 13 is sequentially provided with a flashboard slot 132 and a filter screen slot 133 from left to right, a positioning bump 134 is integrally arranged at a position, right above the flashboard slot 132, of the medium inflow pipe 13, a flashboard movable cavity 1341 is arranged at a position, aligned with the flashboard slot 132, of the positioning bump 134, a flashboard 5 is embedded in the flashboard movable cavity 1341, and a hand-held rod 6 is welded on the upper end face of the flashboard 5; the medium inflow pipe 13 is detachably provided with a sealing cover plate 7 at a position right above the filter screen slot 133; the medium inflow pipe 13 is provided with an impurity collecting groove 135 at the left lower end of the filter screen slot 133, the impurity collecting groove 135 is a through groove, the lower notch of the impurity collecting groove 135 is provided with an impurity discharge pipe 8, the upper end of the impurity discharge pipe 8 and the outer surface of the medium inflow pipe 13 are integrally arranged, and the lower end of the impurity discharge pipe 8 is connected with a sealing nut 9 through threads.
Preferably, the shutter slot 132 and the filter screen slot 133 are both open upward and communicated with the outer surface of the medium inflow pipe 13, and the bottoms of the shutter slot 132 and the filter screen slot 133 are both not communicated with the outer surface of the medium inflow pipe 13; the medium inflow pipe 13 is provided with a plurality of connection screw holes at the edge of the notch of the filter screen slot 133, the connection screw holes are blind holes, and the sealing cover plate 7 is fixed with the aligned connection screw holes through the existing screws in a threaded connection manner. The upper end of the positioning bump 134 is provided with a flashboard limiting cover plate for limiting the flashboard 5, and the flashboard limiting cover plate is fixedly connected with the upper end face of the positioning bump 134 through a screw; and a plurality of sealing rings are arranged between the valve rod 3 and the inner wall surface of the valve rod movable hole 12.
For making the utility model discloses the structure sets up more rationally, as preferred, this embodiment the embedded impurity filter screen 10 that is provided with of filter screen slot 133, the fixed flexible sealing layer 101 of filter screen that is provided with on the outer surface of impurity filter screen 10, filter screen 10 constitutes sealedly through the slot mouth position of the flexible sealing layer 101 of filter screen and filter screen slot 133.
An annular groove 136 is formed outside the opening of the filter screen insertion groove of the medium inflow pipe 13, an O-shaped sealing ring 14 is arranged in the annular groove 136, and the sealing cover plate 7 and the outer surface of the medium inflow pipe 13 form sealing through the O-shaped sealing ring 14.
A layer of shutter flexible sealing layer 51 is integrally arranged on the outer surface of the shutter 5, and the shutter 5 is sealed with the inner wall surface of the shutter insertion groove 132 through the shutter flexible sealing layer 51.
The medium inflow pipe 13 is a rectangular pipe, a medium through hole 137 is formed in the middle of the medium inflow pipe 13, and the medium through hole 137 is a circular hole.
The valve cavity flexible sealing layer 4, the filter screen flexible sealing layer 101, the O-shaped sealing ring 14 and the gate plate flexible sealing layer 51 are all made of polytetrafluoroethylene materials or rubber materials.
In practical application, the outer surface of the butterfly plate directly passes through the flexible sealing layer of the valve cavity to form sealing with the inner wall surface of the valve cavity, a valve seat is not needed, no gap exists, the structure is simple, and the sealing performance is good; the medium inflow is cut off through the flashboard, then the impurities can be discharged by opening the sealing nut, and the impurities on the filter screen can be cleaned or the filter screen can be replaced by opening the sealing cover plate without detaching the butterfly valve; the structure design is reasonable, the structure is simple, the sealing performance is good, the maintenance operation is easy, the use is convenient, and the practicability is good.
The above embodiments are only used for further explanation of the present invention, and it is not understood that the present invention is limited by the protection scope of the present invention, and the technical engineers in the field are right according to the above contents of the present invention.
Claims (6)
1. A butterfly valve capable of being maintained on line comprises a valve body (1), a butterfly plate (2) and a valve rod (3), wherein a valve cavity (11) is formed in the valve body (1), the butterfly plate (2) is located in the valve cavity (11), a valve rod movable hole (12) is vertically formed in the upper end of the valve body (1), the upper end of the valve rod (3) is located outside the valve body (1), and the lower end of the valve rod (3) penetrates through the valve rod movable hole (12) and then is fixedly connected with the upper end of the butterfly plate (2); the method is characterized in that: a valve cavity flexible sealing layer (4) is integrally arranged on the inner wall surface of the valve cavity (11), and the thickness of the valve cavity flexible sealing layer (4) is 1-3 mm; a medium inflow pipe (13) is integrally arranged at the left end of the valve body (1), and a fixed flange (131) is integrally arranged at the left end of the medium inflow pipe (13); the medium inflow pipe (13) is sequentially provided with a flashboard slot (132) and a filter screen slot (133) from left to right, a positioning bump (134) is integrally arranged at a position, right above the flashboard slot (132), of the medium inflow pipe (13), a flashboard movable cavity (1341) is arranged at a position, aligned to the flashboard slot (132), of the positioning bump (134), a flashboard (5) is embedded in the flashboard movable cavity (1341), and a lifting rod (6) is welded on the upper end face of the flashboard (5); the medium inflow pipe (13) is detachably provided with a sealing cover plate (7) at a position right above the filter screen slot (133); the medium inflow pipe (13) is located filter screen slot (133) left side lower extreme position and is provided with impurity collecting vat (135), impurity collecting vat (135) is logical groove, the lower notch of impurity collecting vat (135) is provided with impurity discharge pipe (8), the upper end of impurity discharge pipe (8) sets up with the surface an organic whole of medium inflow pipe (13), and the lower extreme threaded connection of impurity discharge pipe (8) has sealing nut (9).
2. An on-line serviceable butterfly valve in accordance with claim 1, wherein: the embedded impurity filter screen (10) that is provided with of filter screen slot (133), the fixed flexible sealing layer of filter screen (101) that is provided with on impurity filter screen (10) surface, filter screen (10) constitute sealedly through the slot mouth position of the flexible sealing layer of filter screen (101) and filter screen slot (133).
3. An on-line serviceable butterfly valve in accordance with claim 2, wherein: an annular groove (136) is formed in the position, outside the filter screen inserting groove opening, of the medium inflow pipe (13), an O-shaped sealing ring (14) is arranged in the annular groove (136), and the sealing cover plate (7) and the outer surface of the medium inflow pipe (13) form sealing through the O-shaped sealing ring (14).
4. An on-line serviceable butterfly valve in accordance with claim 3, wherein: the outer surface of the gate plate (5) is integrally provided with a layer of gate plate flexible sealing layer (51), and the gate plate (5) is sealed with the inner wall surface of the gate plate insertion groove (132) through the gate plate flexible sealing layer (51).
5. An on-line serviceable butterfly valve in accordance with claim 1, wherein: the medium inflow pipe (13) is a rectangular pipe, a medium through hole (137) is formed in the middle of the medium inflow pipe (13), and the medium through hole (137) is a circular hole.
6. An on-line serviceable butterfly valve in accordance with claim 4, wherein: the valve cavity flexible sealing layer (4), the filter screen flexible sealing layer (101), the O-shaped sealing ring (14) and the gate plate flexible sealing layer (51) are all made of polytetrafluoroethylene materials or rubber materials.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921640285.XU CN210890134U (en) | 2019-09-29 | 2019-09-29 | Butterfly valve capable of being maintained on line |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921640285.XU CN210890134U (en) | 2019-09-29 | 2019-09-29 | Butterfly valve capable of being maintained on line |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210890134U true CN210890134U (en) | 2020-06-30 |
Family
ID=71312520
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921640285.XU Active CN210890134U (en) | 2019-09-29 | 2019-09-29 | Butterfly valve capable of being maintained on line |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210890134U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113639093A (en) * | 2021-08-09 | 2021-11-12 | 陆诗雨 | Online maintenance ball valve |
| CN113996107A (en) * | 2021-10-29 | 2022-02-01 | 福建核五阀门集团有限公司 | Butterfly valve with filtering effect |
| CN114233881A (en) * | 2021-12-21 | 2022-03-25 | 江苏柏斯克石油机械有限公司 | Gate valve convenient for chip removal for petroleum pipeline and use method of gate valve |
| CN116255473A (en) * | 2023-05-15 | 2023-06-13 | 四川飞球（集团）有限责任公司 | Manual all-welded forged steel fixed ball valve and method thereof |
-
2019
- 2019-09-29 CN CN201921640285.XU patent/CN210890134U/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113639093A (en) * | 2021-08-09 | 2021-11-12 | 陆诗雨 | Online maintenance ball valve |
| CN113639093B (en) * | 2021-08-09 | 2023-09-29 | 拓姆菲阀门科技(安徽)有限公司 | Online maintenance ball valve |
| CN113996107A (en) * | 2021-10-29 | 2022-02-01 | 福建核五阀门集团有限公司 | Butterfly valve with filtering effect |
| CN114233881A (en) * | 2021-12-21 | 2022-03-25 | 江苏柏斯克石油机械有限公司 | Gate valve convenient for chip removal for petroleum pipeline and use method of gate valve |
| CN116255473A (en) * | 2023-05-15 | 2023-06-13 | 四川飞球（集团）有限责任公司 | Manual all-welded forged steel fixed ball valve and method thereof |
| CN116255473B (en) * | 2023-05-15 | 2023-07-14 | 四川飞球（集团）有限责任公司 | Manual all-welded forged steel fixed ball valve and method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN210890134U (en) | Butterfly valve capable of being maintained on line | |
| CN211693577U (en) | Valve with filtering capability | |
| CN210770290U (en) | Multifunctional butterfly valve | |
| CN111140662B (en) | Multifunctional butterfly valve | |
| CN105937628A (en) | Double-filtration stop valve | |
| CN214367870U (en) | Stainless steel gate valve | |
| CN211202914U (en) | Multifunctional valve | |
| CN218913769U (en) | Butterfly valve with silt permeation prevention mechanism | |
| CN211009940U (en) | Dustproof gate valve with self-cleaning function | |
| CN208611941U (en) | A kind of barrier structure and cleaning equipment for Intelligent purifying processing equipment | |
| CN206626237U (en) | A kind of duplex gate valve with filter | |
| CN219119806U (en) | Stop valve convenient to clearance | |
| CN217843134U (en) | Heat exchange hanging piece device for oilfield sewage treatment | |
| CN218207857U (en) | Sanitary butterfly valve convenient to maintenance | |
| CN216407866U (en) | Novel leak-proof durable ball valve structure | |
| CN221034041U (en) | Valve | |
| CN220706434U (en) | Stop valve convenient to clearance | |
| CN212680274U (en) | Detachable filter tube filter head | |
| CN220770293U (en) | Stop valve with anti-blocking structure | |
| CN220249078U (en) | Self-tightening sealing flange type gate valve | |
| CN212177892U (en) | Butterfly valve with good sealing effect | |
| CN215806483U (en) | Tee pipe fitting for valve | |
| CN221300140U (en) | Adjustable throttle valve | |
| CN220354568U (en) | Fluorine-lined check valve convenient to maintain | |
| CN211340685U (en) | Hydraulic engineering's gate |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |