JPS6330916Y2 - - Google Patents
Info
- Publication number
- JPS6330916Y2 JPS6330916Y2 JP6774583U JP6774583U JPS6330916Y2 JP S6330916 Y2 JPS6330916 Y2 JP S6330916Y2 JP 6774583 U JP6774583 U JP 6774583U JP 6774583 U JP6774583 U JP 6774583U JP S6330916 Y2 JPS6330916 Y2 JP S6330916Y2
- Authority
- JP
- Japan
- Prior art keywords
- valve plate
- curved surface
- valve
- vent
- arcuate curved
- 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
Links
- 230000000694 effects Effects 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
Landscapes
- Ventilation (AREA)
- Air-Flow Control Members (AREA)
- Check Valves (AREA)
Description
【考案の詳細な説明】
＜技術分野＞
本考案はベンチレータの通気口を気体の流動圧
力よつて揺動開閉するバタフライ弁に関するもの
である。[Detailed Description of the Invention] <Technical Field> The present invention relates to a butterfly valve that swings open and close the vent of a ventilator depending on the flow pressure of gas.
＜従来技術＞
ベンチレータの通気口には逆止弁として作用す
るバタフライ弁が設けられている。従来では第１
図に示すように通気口１の片面にゴム等の可撓性
よりなる平板状の弁板２の一端を鋲３等によつて
止着している。この弁板２の取付座面は平面であ
り、非常に良好に揺動開閉している。従つて、微
弱な乱れた圧力差が生じたときでも弁板２は揺動
するため、シール性能を悪くしている。ベンチレ
ータにおける逆止弁であるバタフライ弁は、所期
の圧力差のときはできるだけ大きな開度を得るこ
とが望ましいが、そのためには上記のような相反
する問題があつて設計的対応に困難性があつた。<Prior art> A butterfly valve that acts as a check valve is provided at the vent of the ventilator. Conventionally, the first
As shown in the figure, one end of a flat valve plate 2 made of flexible material such as rubber is fixed to one side of the vent 1 with rivets 3 or the like. The mounting surface of the valve plate 2 is flat, and swings open and close very well. Therefore, even when a slight turbulent pressure difference occurs, the valve plate 2 swings, which impairs the sealing performance. It is desirable for the butterfly valve, which is a check valve in a ventilator, to open as large as possible when the desired pressure difference is reached, but to do so, there are conflicting issues such as those mentioned above, making it difficult to deal with in the design. It was hot.
＜考案の目的＞
本考案は上記従来の問題を、弁板の取付座面の
形状を特定形状とする簡単な構成によつて解決し
たものである。<Purpose of the invention> The present invention solves the above-mentioned conventional problems with a simple structure in which the mounting seat surface of the valve plate has a specific shape.
＜考案の構成＞
本考案は、通気口の片面に揺動開閉可能に取付
ける弁板の取付座面を凹又は凸の弧状曲面とし、
弁板の取付部を弧状曲面に沿つて止着した構造で
ある。<Structure of the invention> The invention has a mounting seat surface of a valve plate that is attached to one side of the vent so that it can swing open and close, and has a concave or convex arcuate curved surface.
It has a structure in which the mounting part of the valve plate is fixed along an arcuate curved surface.
＜実施例＞
以下本考案の実施例を第２図及び第３図によつ
て説明する。１は通気口、２は通気口１の片面に
揺動開閉可能に取付けられる可撓性の弁板であ
る。本考案は第３図で明らかなように、弁板２の
一端を鋲３等で止着する取付座面を凹弧状曲面４
とし、弁板２の取付部をこの凹弧状曲面４に沿つ
て止着したものである。尚図示省略しているが弁
板２の取付座面は凸弧状曲面としても同じ作用が
得られる。<Example> An example of the present invention will be described below with reference to FIGS. 2 and 3. 1 is a vent, and 2 is a flexible valve plate attached to one side of the vent 1 so as to be able to swing open and close. As is clear from FIG. 3, the present invention has a concave arc-shaped curved surface 4 on the mounting seat surface for fixing one end of the valve plate 2 with rivets 3, etc.
The mounting portion of the valve plate 2 is fixed along this concave arc-shaped curved surface 4. Although not shown, the same effect can be obtained even if the mounting seat surface of the valve plate 2 is a convex arc-shaped curved surface.
本考案は上記した通り、弁板２の取付座面を凹
弧状曲面４（又は凸弧状曲面）とし、この曲面に
沿つて弁板２の一端を止着するため、弁板２の取
付部は弧状曲面となる。従つて、弁板２自体に開
閉方向に剛性が付与され、微弱な圧力差のときに
は開き難くなり、また所期の圧力差のときには通
常の平面取付けと同様な開度が得られるのであ
る。 As described above, in the present invention, the mounting seat surface of the valve plate 2 is a concave arc-shaped curved surface 4 (or a convex arc-shaped curved surface), and one end of the valve plate 2 is fixed along this curved surface, so that the mounting portion of the valve plate 2 is It becomes an arcuate curved surface. Therefore, the valve plate 2 itself is given rigidity in the opening/closing direction, making it difficult to open when there is a weak pressure difference, and when the desired pressure difference is present, the same opening degree as with a normal flat mounting can be obtained.
＜効果＞
このように本考案では弁板の取付座面を弧状曲
面とする簡単な構造により、微弱な圧力差のとき
には開き難くし、シール性能を向上することと、
弁板の厚さを薄くし、通気口を小さくできる等の
設計的自由度を増す有益な利点を有している。<Effects> In this way, the present invention has a simple structure in which the mounting surface of the valve plate is an arcuate curved surface, which makes it difficult to open when there is a slight pressure difference, improving sealing performance.
This has the beneficial advantage of increasing design freedom, such as reducing the thickness of the valve plate and making the vent hole smaller.
第１図は従来構造の斜視図、第２図は本考案の
斜視図、第３図は第２図−線断面図である。
１……通気口、２……弁板、３……鋲、４……
凹弧状曲面。
FIG. 1 is a perspective view of a conventional structure, FIG. 2 is a perspective view of the present invention, and FIG. 3 is a sectional view taken along the line of FIG. 1... Vent, 2... Valve plate, 3... Stud, 4...
Concave arc curved surface.
Claims (1)
閉する可撓性の弁板の一端を取付けたバタフライ
弁において、前記弁板の取付座面を凹又は凸の弧
状曲面とし、弁板の取付部を弧状曲面に沿つて止
着したことを特徴とするベンチレータのバタフラ
イ弁。 In a butterfly valve in which one end of a flexible valve plate is attached to one side of the vent port to swing open and close by the flow pressure of gas, the mounting seat surface of the valve plate is a concave or convex arcuate curved surface, and the valve plate is A butterfly valve for a ventilator, characterized in that a mounting portion is fixed along an arcuate curved surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6774583U JPS59172928U (en) | 1983-05-09 | 1983-05-09 | Ventilator butterfly valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6774583U JPS59172928U (en) | 1983-05-09 | 1983-05-09 | Ventilator butterfly valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS59172928U JPS59172928U (en) | 1984-11-19 |
| JPS6330916Y2 true JPS6330916Y2 (en) | 1988-08-18 |
Family
ID=30197935
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6774583U Granted JPS59172928U (en) | 1983-05-09 | 1983-05-09 | Ventilator butterfly valve |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS59172928U (en) |
-
1983
- 1983-05-09 JP JP6774583U patent/JPS59172928U/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS59172928U (en) | 1984-11-19 |
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