CN2900952Y - Butterfly valve with novel seal structure - Google Patents

Butterfly valve with novel seal structure Download PDF

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Publication number
CN2900952Y
CN2900952Y CN 200520141802 CN200520141802U CN2900952Y CN 2900952 Y CN2900952 Y CN 2900952Y CN 200520141802 CN200520141802 CN 200520141802 CN 200520141802 U CN200520141802 U CN 200520141802U CN 2900952 Y CN2900952 Y CN 2900952Y
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CN
China
Prior art keywords
gas
valve
liquid
valve plate
worm
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.)
Expired - Fee Related
Application number
CN 200520141802
Other languages
Chinese (zh)
Inventor
白跃华
张维帮
宋运通
孟庆元
范爱民
黄力平
伊侠
柴贵权
王林成
果硕
张联堂
彭建立
李智
Original Assignee
姜元增
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by 姜元增 filed Critical 姜元增
Priority to CN 200520141802 priority Critical patent/CN2900952Y/en
Application granted granted Critical
Publication of CN2900952Y publication Critical patent/CN2900952Y/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Abstract

The utility model discloses a novel seal-structural butterfly valve, comprising a valve body, a worm gear casing and a filling gland cover provided on the valve body, a front valve board and a rear valve board fixed on the worm gear shaft in the valve body, and an anchor pin of the worm gear shaft, wherein a seal ring is provided on the beard on the edge between the fore-and-aft valve board, a ring-shaped beard is also provided on the beard on the edge between the fore-and-aft valve board, a hollow seal ring made of an elastic material with extensibility, which is provided with a inflatable or liquid-filled line, is fixed in the beard of the edge between the fore-and-aft valve board, wherein the gas-and-liquid line is passed through the rear valve board, and connected with a gas-and-liquid line the worm gear shaft by a high-pressure adapter to achieve a connection of gas-and-liquid line. The other end of the gas or liquid line is lead out from the top end of the shaft, and connected with the external gas supplier and water supplier by the self-sealing one-way high-pressure express connector. The utility model has the advantage of a high hermeticity.

Description

A kind of butterfly valve with novel sealing structure
Technical field
The utility model relates to a kind of improvement technology of valve.
Background technique
Traditional butterfly valve comprises Worm gear case, packing seal gland, valve body and forward and backward valve plate etc.For valve body has the good sealing of closing, on the rotation surface of contact of valve plate and valve interior wall, be provided with seal ring.Seal ring adopts the solid body structure, and after using a period of time, its sealing effect obviously reduces, and it is bigger than normal to open moment of torsion simultaneously.
Summary of the invention
The purpose of this utility model provides a kind of butterfly valve with novel sealing structure, to solve the undesirable and unlatching moment of torsion problem bigger than normal of traditional butterfly valve seal effect.
A kind of novel sealing structure butterfly valve that has described in the utility model, it comprises: valve body, be positioned at Worm gear case and packing seal gland on the valve body, be fixed in the forward and backward valve plate on the worm-wheel shaft and the fixing pin of valve plate and worm-wheel shaft in the valve body; Before described, periphery place between back valve plate is provided with the groove of placing for seal ring, before the valve interior wall correspondence, on the groove location at the periphery place between back valve plate, have annular groove equally, the hollow seal circle that has an elastic material that is ductile to make be enclosed in described before, in the groove of back valve plate periphery, has one on this hollow seal circle for inflation, the pipeline of liquid, this inflation, liquid pipeline passes the gas of back valve plate in worm-wheel shaft, the liquid passage is realized gas by the high pressure connecting head, the liquid road connects, gas in the described axle, the liquid passage the other end is drawn from the top of axle, by self-sealed one-way high-pressure rapid pipe joint and external gas, liquid provides the source to realize being communicated with.
The utility model is compared the advantage with high leak tightness with traditional butterfly valve, when using different material seal rings, can satisfy the designing requirement of various fields of employment to butterfly valve.
Description of drawings
Fig. 1 is the structural representation of butterfly valve described in the utility model.
Embodiment
The utility model is on traditional butterfly valve structure basis, only the structure that relates to the seal ring part has been carried out new design, and concrete structure can be referring to Fig. 1.Among Fig. 1, the top of the valve body 11 of butterfly valve is equipped with packing seal gland 12 and Worm gear case 1, and sealing filling chock 3 is arranged in the packing seal gland 12, and the worm-wheel shaft 6 of Worm gear case 1 puts in the valve pocket, is fixedly connected with forward and backward valve plate 10,7.Periphery place 10,7 of forward and backward valve plates has an annular groove, provides a structure that is positioned at the V font groove at valve plate 10,7 edges, front and back among the figure.On the body cavity of the annular groove position of corresponding forward and backward valve plate 10,7, have the groove of annular equally.In the groove of forward and backward valve plate 10,7, be equipped with an O-ring seal 9, sealing circle 9 is hollow seal circles 9 of being made by rubber with extension characteristics or metallic elastic material.Sealing circle 9 has the pipeline of an inflation, liquid, and they can make integrative-structure.After this pipeline passes back valve plate 7, realize that by high pressure connecting head 4 and the through hole in the worm-wheel shaft 6 gas, liquid road are connected.Through hole upper end in the worm-wheel shaft 6 is positioned at the upper end portion of worm-wheel shaft 6, and realizes being communicated with external source of the gas or hydraulic power by the rapid pipe joint 2 of sealing one-way high-pressure.
Described high pressure connecting head 4 only is the mode of execution that the gas-liquid road is connected with self-sealed one-way high-pressure rapid pipe joint 2, and the utility model is not got rid of other the mode that is connected and fixed.
Among Fig. 1, be to fix by valve plate fixing bolt 8 between the forward and backward valve plate 10,7, front and back valve plate 10,7 and worm-wheel shaft 6 are to realize fixing by valve plate and worm-wheel shaft fixing pin 5.

Claims (1)

1, a kind of butterfly valve with novel sealing structure, it comprises: valve body, be positioned at Worm gear case and packing seal gland on the valve body, be fixed in the forward and backward valve plate on the worm-wheel shaft and the fixing pin of valve plate and worm-wheel shaft in the valve body; It is characterized in that: before described, periphery place between back valve plate is provided with the groove of placing for seal ring, before the valve interior wall correspondence, on the groove location at the periphery place between back valve plate, have annular groove equally, the hollow seal circle that has an elastic material that is ductile to make be enclosed in described before, in the groove at the periphery place between back valve plate, has one on this hollow seal circle for inflation, the pipeline of liquid, this inflation, liquid pipeline passes the gas of back valve plate in worm-wheel shaft, the liquid passage is realized gas by the high pressure connecting head, the liquid road connects, gas in the described axle, the liquid passage the other end is drawn from the top of axle, by self-sealed one-way high-pressure rapid pipe joint and external gas, liquid provides the source to realize being communicated with.
CN 200520141802 2005-11-25 2005-11-25 Butterfly valve with novel seal structure Expired - Fee Related CN2900952Y (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 200520141802 CN2900952Y (en) 2005-11-25 2005-11-25 Butterfly valve with novel seal structure

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 200520141802 CN2900952Y (en) 2005-11-25 2005-11-25 Butterfly valve with novel seal structure

Publications (1)

Publication Number Publication Date
CN2900952Y true CN2900952Y (en) 2007-05-16

Family

ID=38085115

Family Applications (1)

Application Number Title Priority Date Filing Date
CN 200520141802 Expired - Fee Related CN2900952Y (en) 2005-11-25 2005-11-25 Butterfly valve with novel seal structure

Country Status (1)

Country Link
CN (1) CN2900952Y (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103075526A (en) * 2013-01-31 2013-05-01 石家庄市长宏阀门有限公司 Butterfly valve with inflation seal valve plate
CN104847908A (en) * 2014-11-22 2015-08-19 奉化市智新仪表科技有限公司 Seal butterfly valve with internal channel inflated with air
CN104964046A (en) * 2014-09-11 2015-10-07 奉化市智新仪表科技有限公司 Large-diameter inflated sealing butterfly valve
CN106015596A (en) * 2016-05-19 2016-10-12 佛山市中境净化设备有限公司 Electric stainless steel airtight valve
CN106402413A (en) * 2016-06-27 2017-02-15 无锡斯考尔自动控制设备有限公司 Large-diameter low-load double-eccentric center butterfly valve
CN108716551A (en) * 2018-07-13 2018-10-30 辽阳给排水设备阀门有限公司 A kind of double eccentric flexible sealing low water drag butterfly valves
CN111043331A (en) * 2019-12-17 2020-04-21 孔仕华 Prevent integration valve of leakage

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103075526A (en) * 2013-01-31 2013-05-01 石家庄市长宏阀门有限公司 Butterfly valve with inflation seal valve plate
CN104964046A (en) * 2014-09-11 2015-10-07 奉化市智新仪表科技有限公司 Large-diameter inflated sealing butterfly valve
CN104847908A (en) * 2014-11-22 2015-08-19 奉化市智新仪表科技有限公司 Seal butterfly valve with internal channel inflated with air
CN106015596A (en) * 2016-05-19 2016-10-12 佛山市中境净化设备有限公司 Electric stainless steel airtight valve
CN106402413A (en) * 2016-06-27 2017-02-15 无锡斯考尔自动控制设备有限公司 Large-diameter low-load double-eccentric center butterfly valve
CN106402413B (en) * 2016-06-27 2019-03-26 无锡斯考尔自动控制设备有限公司 A kind of heavy caliber low-load double eccentric butterfly valve
CN108716551A (en) * 2018-07-13 2018-10-30 辽阳给排水设备阀门有限公司 A kind of double eccentric flexible sealing low water drag butterfly valves
CN111043331A (en) * 2019-12-17 2020-04-21 孔仕华 Prevent integration valve of leakage

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GR01 Patent grant
C19 Lapse of patent right due to non-payment of the annual fee
CF01 Termination of patent right due to non-payment of annual fee