CN103216629A - Butterfly valve - Google Patents
Butterfly valve Download PDFInfo
- Publication number
- CN103216629A CN103216629A CN2013101122891A CN201310112289A CN103216629A CN 103216629 A CN103216629 A CN 103216629A CN 2013101122891 A CN2013101122891 A CN 2013101122891A CN 201310112289 A CN201310112289 A CN 201310112289A CN 103216629 A CN103216629 A CN 103216629A
- Authority
- CN
- China
- Prior art keywords
- valve
- butterfly valve
- flap
- groove
- seal ring
- 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.)
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- Lift Valve (AREA)
Abstract
The invention provides a butterfly valve, which comprises a valve body, a valve clack and a valve rod, wherein a shaft hole is formed in the valve body; the valve rod penetrates through the shaft hole and is fixedly connected with the valve clack; the valve rod is matched with the valve clack to form an opening-closing passage; a sealing ring is arranged between the valve body and the valve clack; a groove is formed on the valve clack; the butterfly valve is characterized in that the groove is a dovetail groove, and the sealing ring is embedded in the dovetail groove. The butterfly valve is simple in structure, convenient to use, low in cost, safe and reliable; and moreover, the sealing ring can be fixed in the groove of the valve clack when the butterfly valve is opened under a pressure status.
Description
[technical field]
The present invention relates to a kind of butterfly valve, relate in particular to the butterfly valve that a kind of flap colludes groove.
[background technique]
Butterfly valve is Flap valve again, be a kind of modulating valve simple in structure, also can be used for the switch control of low pressure pipeline medium simultaneously, butterfly valve is meant that closure member (flap or butterfly plate) is a disk, rotate a kind of valve that reaches open and close around valve shaft, main rising cut off and throttling action on pipeline.Butterfly valve is applicable on the pipeline of carrying various corrosivity, non-corrosive fluids medium, is used to regulate and block flowing of medium.The key of the keying of butterfly valve is the sealing between valve body and the flap, and when having flowing medium in the pipeline, there is certain pressure in flowing medium to butterfly valve, so press off when opening when the butterfly valve band, seal ring is produced easily.
[summary of the invention]
The object of the present invention is to provide a kind of butterfly valve,, can make seal ring be fixed on flap and collude in the groove so that when under butterfly valve band pressure condition, opening.
For reaching aforementioned purpose, a kind of butterfly valve, comprise valve body, flap and valve rod, offer axis hole on the described valve body, described valve rod is fixedlyed connected with described flap by described axis hole, is provided with seal ring between described valve body and the flap, and described flap is provided with and colludes groove, the described groove that colludes is a dovetail groove, and described seal ring embeds in the dovetail groove.
According to one embodiment of present invention, the width of described dovetail groove increases gradually from opening to bottom surface.
According to one embodiment of present invention, described seal ring is an O type circle.
According to one embodiment of present invention, the difference of the internal diameter of the external diameter of described seal ring and described seal ring is between described dovetail groove opening width and place, described dovetail groove bottom surface width.
Beneficial effect of the present invention: compared with prior art, a kind of butterfly valve, comprise valve body, flap and valve rod, offer axis hole on the described valve body, described valve rod passes described axis hole and described flap is fixedly connected, and described valve body cooperates the path that forms switching with described flap, be provided with seal ring between described valve body and the flap, described flap is provided with and colludes groove, it is characterized in that the described groove that colludes is a dovetail groove, and described seal ring embeds in the dovetail groove.This device has simple in structure, and is easy to use, with low cost, safe and reliable, and can open under butterfly valve band pressure condition the time, can make seal ring be fixed on flap and collude in the groove.
[description of drawings]
Fig. 1 is the cross-sectional schematic of a kind of butterfly valve of the present invention.
Fig. 2 is the A portion enlarged diagram of a kind of butterfly valve of the present invention.
[embodiment]
Alleged herein " embodiment " or " embodiment " are meant special characteristic, structure or the characteristic that can be contained at least one implementation of the present invention.Different in this manual local " in one embodiment " that occur not are all to refer to same embodiment, neither be independent or optionally mutually exclusive with other embodiments embodiment.
See also shown in Figure 1ly, it shows the cross-sectional schematic of a kind of butterfly valve of the present invention.As shown in Figure 1, a kind of butterfly valve, comprise valve body 1, flap 2 and valve rod 3, offer axis hole 4 on the valve body 1, valve rod 3 passes axis hole 4 and is fixedly connected with flap 2, and valve body 1 cooperates the path that forms switching with flap 2, be provided with seal ring 5 between valve body 1 and the flap 2, flap 2 is provided with and colludes groove, and colluding groove is dovetail groove 6, and seal ring 5 embeds in the dovetail groove 6.
See also shown in Figure 2ly, it shows the A portion enlarged diagram of a kind of butterfly valve of the present invention.As shown in Figure 2, dovetail groove 6 A/Fs to dovetail groove 6 bottom width increase gradually.
In one embodiment of the invention, seal ring 5 can also be O type circle.The difference of seal ring 5 external diameters and seal ring 5 internal diameters is preferably between dovetail groove 6 A/Fs and described dovetail groove 6 bottom width.
In one embodiment of the invention, the bar number of seal ring 5 can be set to a plurality of according to the thickness of flap 2 and valve body 1, and with the corresponding coupling of bar number of dovetail groove 6.
A kind of butterfly valve of the present invention has simple in structurely, easy to use, with low cost, safe and reliable, and can open under butterfly valve band pressure condition the time, can make seal ring be fixed on flap and collude in the groove.
Above-mentioned explanation has fully disclosed the specific embodiment of the present invention.It is pointed out that and be familiar with the scope that any change that the person skilled in art does the specific embodiment of the present invention does not all break away from claims of the present invention.Correspondingly, the scope of claim of the present invention also is not limited only to previous embodiment.
Claims (4)
1. butterfly valve, comprise valve body (1), flap (2) and valve rod (3), offer axis hole (4) on the described valve body (1), described valve rod (3) is fixedlyed connected with described flap (2) by described axis hole (4), be provided with seal ring (5) between described valve body (1) and the flap (2), described flap (2) is provided with and colludes groove, it is characterized in that: the described groove that colludes is dovetail groove (6), and described seal ring (5) embeds in the dovetail groove (6).
2. butterfly valve as claimed in claim 1 is characterized in that: the width of described dovetail groove (6) increases gradually from opening to bottom surface.
3. butterfly valve as claimed in claim 1 is characterized in that: described seal ring (5) is an O type circle.
4. butterfly valve as claimed in claim 1 is characterized in that: the difference of the internal diameter of the external diameter of described seal ring (5) and described seal ring (5) is between described dovetail groove (6) opening width and place, described dovetail groove (6) bottom surface width.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013101122891A CN103216629A (en) | 2013-04-01 | 2013-04-01 | Butterfly valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013101122891A CN103216629A (en) | 2013-04-01 | 2013-04-01 | Butterfly valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103216629A true CN103216629A (en) | 2013-07-24 |
Family
ID=48814679
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013101122891A Pending CN103216629A (en) | 2013-04-01 | 2013-04-01 | Butterfly valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103216629A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4411405A (en) * | 1980-07-18 | 1983-10-25 | Pont-A-Mousson S.A. | Butterfly-valve |
| CN201443607U (en) * | 2009-06-11 | 2010-04-28 | 辽宁能发伟业能源科技有限公司 | bidirectional sealing butterfly valve |
| CN201661695U (en) * | 2010-03-16 | 2010-12-01 | 苏州纽威阀门股份有限公司 | Double-eccentric soft sealing butterfly valve |
| CN202674336U (en) * | 2012-06-28 | 2013-01-16 | 泉州市沪航阀门制造有限公司 | Elastic seat seal butterfly valve |
| CN102954233A (en) * | 2011-08-23 | 2013-03-06 | 上海凯工阀门有限公司 | High-pressure soft-seal butterfly valve |
| CN203223569U (en) * | 2013-04-01 | 2013-10-02 | 无锡富盛阀业有限公司 | Butterfly valve |
-
2013
- 2013-04-01 CN CN2013101122891A patent/CN103216629A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4411405A (en) * | 1980-07-18 | 1983-10-25 | Pont-A-Mousson S.A. | Butterfly-valve |
| CN201443607U (en) * | 2009-06-11 | 2010-04-28 | 辽宁能发伟业能源科技有限公司 | bidirectional sealing butterfly valve |
| CN201661695U (en) * | 2010-03-16 | 2010-12-01 | 苏州纽威阀门股份有限公司 | Double-eccentric soft sealing butterfly valve |
| CN102954233A (en) * | 2011-08-23 | 2013-03-06 | 上海凯工阀门有限公司 | High-pressure soft-seal butterfly valve |
| CN202674336U (en) * | 2012-06-28 | 2013-01-16 | 泉州市沪航阀门制造有限公司 | Elastic seat seal butterfly valve |
| CN203223569U (en) * | 2013-04-01 | 2013-10-02 | 无锡富盛阀业有限公司 | Butterfly valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20130724 |