JPH071365Y2 - Check valve in ventilation system - Google Patents
Check valve in ventilation systemInfo
- Publication number
- JPH071365Y2 JPH071365Y2 JP1988109034U JP10903488U JPH071365Y2 JP H071365 Y2 JPH071365 Y2 JP H071365Y2 JP 1988109034 U JP1988109034 U JP 1988109034U JP 10903488 U JP10903488 U JP 10903488U JP H071365 Y2 JPH071365 Y2 JP H071365Y2
- Authority
- JP
- Japan
- Prior art keywords
- support rod
- shield plate
- upper portion
- hole
- main body
- 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 - Lifetime
Links
Landscapes
- Ventilation (AREA)
- Air-Flow Control Members (AREA)
- Building Environments (AREA)
Description
【考案の詳細な説明】 〔産業上の利用分野〕 本考案は、床下や小屋裏を換気する装置に用いられる逆
止弁に関する。DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention relates to a check valve used in a device for ventilating an underfloor or an attic.
床下や小屋裏を換気する装置としては、例えば実公昭63
−18648号公報に示すように、方形枠状の本体に通気口
を形成すると共に、この通気口を開閉するダンパーと一
側より他側に空気が流通することを防止する逆止弁を設
け、床下や小屋裏に外気を流入させたり、床下や小屋裏
内の空気が外部に流出しないようにしてある。As a device for ventilating the underfloor or the attic, for example,
As shown in Japanese Patent Laid-Open No. 18648, while forming a vent in a rectangular frame-shaped main body, a damper for opening and closing the vent and a check valve for preventing air from flowing from one side to the other side are provided, The outside air is allowed to flow into the underfloor and the attic, and the air under the floor and the attic is prevented from flowing out.
かかる逆止弁は、本体の上部に遮蔽板の上縁部を添着固
定して下部をフリー状態とし、一側から他側に向けて流
れる空気によって遮蔽板を本体に押しつけて通気口を閉
じ、他側から一側に向けて流れる空気によって遮蔽板を
押し上げて通気口を開放する構造となっている。Such a check valve is such that the upper edge of the shield plate is attached and fixed to the upper part of the main body so that the lower part is in a free state, and the shield plate is pressed against the main body by the air flowing from one side to the other side to close the vent hole, It has a structure in which the ventilation plate is opened by pushing up the shielding plate with the air flowing from the other side toward the one side.
このために、遮蔽板は本体に添着固定した上縁部を境と
して上下に折り曲げ変位するので、上方に回動させるに
は遮蔽板を折り曲げ変位させるだけの力が必要となり、
その力は遮蔽板の剛性によってある程度の大きくなるの
で、遮蔽板にある程度の風圧が作用しないと通気口が開
放せずに、床下や小屋裏に外部の空気をとり入れ難くな
る。For this reason, since the shield plate is bent and displaced up and down with the upper edge portion fixedly attached to the main body as a boundary, it is necessary to bend and displace the shield plate in order to rotate it upward.
Since the force increases to some extent due to the rigidity of the shield plate, unless a certain amount of wind pressure acts on the shield plate, the ventilation port does not open, and it becomes difficult to take in outside air to the underfloor or the attic.
そこで、本考案は、遮蔽板を極く小さな力で上方に回動
して通気口を開放できるようにした換気装置の逆止弁を
提供することを目的とする。Therefore, an object of the present invention is to provide a check valve of a ventilation device in which a shielding plate can be pivoted upward with an extremely small force to open a ventilation port.
1.換気装置を構成する本体１における通気口２の一側周
縁面2a上部に支持杆12を設け、遮蔽板11の上部寄に前記
支持杆12に遊嵌する透孔14を形成すると共に、その透孔
14を支持杆12に遊嵌し、かつ支持杆12に押え杆13を、そ
の先端面13bと一側縁面2aとの間に隙間t1が生じるよう
に嵌合して遮蔽板11が支持杆12より外れないようにし、
前記遮蔽板11の上部に前記隙間t1と略同一長さの折曲片
30を設けた換気装置の逆止弁である。1. A support rod 12 is provided on an upper portion of a peripheral edge surface 2a of a vent hole 2 of a main body 1 which constitutes a ventilation device, and a through hole 14 which is loosely fitted to the support rod 12 is formed near an upper portion of a shield plate 11, Its through hole
The shield plate 11 is supported by loosely fitting 14 onto the support rod 12 and pressing the support rod 12 onto the support rod 12 so that a gap t 1 is formed between the tip surface 13b and the one side edge surface 2a. So that it does not come off from the rod 12,
A bent piece having substantially the same length as the gap t 1 is provided on the shielding plate 11.
It is a check valve of the ventilation device provided with 30.
これによって、遮蔽板11は透孔14によって支持杆12に対
して上下に回動するので、遮蔽板11自体は変形等しない
から上方に回動する力は極く小さくて良く、弱い風によ
って遮蔽板11を上方に回動して通気口２を開放できる
し、遮蔽板11を閉じた時に折曲片30が押え杆13の先端面
13bに当接して一側周縁面2aに押しつけられるから、確
実に閉じることができる。As a result, the shield plate 11 is rotated up and down with respect to the support rod 12 by the through hole 14, so that the shield plate 11 itself does not deform, so that the force for rotating it upwards may be extremely small, and shielded by weak wind. The vent 11 can be opened by rotating the plate 11 upward, and the bent piece 30 holds the tip end surface of the rod 13 when the shield plate 11 is closed.
Since it abuts against 13b and is pressed against the peripheral edge surface 2a on one side, it can be securely closed.
2.押え杆13で遮蔽板11を一側周縁面2aに押しつけ、さら
に一側周縁面2aに遮蔽板11の上部11aが臨む凹部20を形
成した換気装置の逆止弁であり、これによって、遮蔽板
11を閉じた時に支持杆12に沿って移動しないから確実に
閉じることができると共に、開放した時に上部が凹部20
に臨むのでスムーズに開放できる。2.A check valve of a ventilation device, in which the shield plate 11 is pressed against the one-side peripheral surface 2a by the pressing rod 13, and the recess 20 facing the upper portion 11a of the shield plate 11 is formed on the one-side peripheral surface 2a. Shield
Since it does not move along the support rod 12 when the 11 is closed, it can be surely closed, and when it is opened, the upper part has a recess 20.
Since it faces, it can be opened smoothly.
第３図に示すように、方形枠状の本体１には一側と他側
とに亘って開口した通気口２が形成されている共に、本
体１内には開口部３を有する仕切り板４が一体形成さ
れ、この仕切板４には開口部３を開閉するダンパー５が
ヒンジ６で上下回動自在に取付けられていると共に、本
体１の一側には逆止弁10が設けてある。As shown in FIG. 3, a rectangular frame-shaped main body 1 is formed with a vent hole 2 that is open from one side to the other side, and a partition plate 4 having an opening 3 in the main body 1. A damper 5 for opening and closing the opening 3 is attached to the partition plate 4 by a hinge 6 so as to be vertically rotatable, and a check valve 10 is provided on one side of the main body 1.
該逆止弁10は遮蔽板11と支持杆12と押え杆13とを備え、
遮蔽板11は本体１の通気口２の一側周縁面2aに接する大
きさの板状体となり、その上縁部には第１図、第２図に
示すように縦長の透孔14が左右方向に間隔を置いて複数
形成され、この透孔14が本体１の一側周縁面2a上部に突
出した支持杆12に遊嵌されていると共に、その支持杆12
の突出端部に、押え杆13が嵌合して取付けられ、本体１
の一側周縁面2a上部と押え杆13の先端部13bとの間に隙
間t1が形成してある。The check valve 10 includes a shield plate 11, a support rod 12, and a holding rod 13.
The shield plate 11 is a plate-shaped body having a size in contact with the peripheral edge surface 2a on one side of the vent hole 2 of the main body 1, and a vertically long through hole 14 is provided on the left and right as shown in FIGS. A plurality of through-holes 14 are formed at intervals in the direction, and the through-holes 14 are loosely fitted to the supporting rods 12 protruding above the one peripheral edge surface 2a of the main body 1, and the supporting rods 12 are also formed.
The pressing rod 13 is fitted and attached to the protruding end of the main body 1
A gap t 1 is formed between the upper part of the one side peripheral surface 2a and the tip portion 13b of the pressing rod 13.
前記遮蔽板11の透孔14より上部11aに折曲片30を形成す
ると共に、この折曲片30の一側周縁面2aと押え杆13の先
端部13bとの間に隙間t1と略同一長さ、好ましくは若干
長くしてある。A bending piece 30 is formed above the through hole 14 of the shielding plate 11 and the gap t 1 is substantially the same between the one peripheral edge surface 2a of the bending piece 30 and the tip portion 13b of the holding rod 13. It has a length, preferably slightly longer.
なお、支持杆12の下部に突条12aが形成され、押え杆13
には切欠溝13cが形成されて、押え杆13は先端面13bが水
平となるように位置決めして取付けできるようにしてあ
る。A ridge 12a is formed in the lower part of the support rod 12, and the pressing rod 13a
A notched groove 13c is formed in the presser bar 13 so that the pressing rod 13 can be positioned and attached so that the front end surface 13b is horizontal.
しかして、第３図に示すように本体１の一側Ａより他側
Ｂに向けて流れる空気によって遮蔽板11は本体１側に向
けて下方に回動し、本体１の通気口２の一側周縁面2aで
圧着するので、通気口２が閉じられて一側から他側に向
けて空気が流れることを阻止する。As shown in FIG. 3, the shield plate 11 is rotated downward by the air flowing from one side A of the main body 1 toward the other side B, and the shield plate 11 is rotated downward toward the main body 1 side. Since the side peripheral surface 2a is pressure-bonded, the ventilation port 2 is closed to prevent air from flowing from one side to the other side.
また、他側Ｂより一側Ａに向けて空気が流れると、遮蔽
板11は支持杆12に対して上方に回動変位して通気口２を
開放すると共に、遮蔽板11自体は折り曲げ変形せずに透
孔14が支持杆12に対して変位することで上方に回動する
から、そのために必要な力は極く僅かとなって小さい力
で遮蔽板11を上方に回動して通気口２を開放できる。When the air flows from the other side B toward the one side A, the shield plate 11 is pivotally displaced upward with respect to the support rod 12 to open the ventilation port 2, and the shield plate 11 itself is bent and deformed. Instead, the through hole 14 is displaced upward with respect to the support rod 12 so that it is pivoted upward. Therefore, the force necessary for this is extremely small and the shield plate 11 is pivoted upward with a small force. You can open 2.
また、押え杆13の先端面13aと本体１の一側周縁面2aと
の間には隙間t1があると共に、遮蔽板11の上部に折曲片
30が設けられ、この折曲片30は前記隙間t1と略同一長
さ、好ましくは若干長くしてあるから、遮蔽板11が下方
に回動した時に第１図仮想線で示すように折曲片30が押
え片13の先端面13bに当接して遮蔽板11を一側周縁面2a
に押しつけるので、通気口２を確実に閉じることができ
る。Further, there is a gap t 1 between the tip surface 13a of the pressing rod 13 and the one peripheral edge surface 2a of the main body 1, and a bending piece is provided on the upper portion of the shielding plate 11.
30 is provided, and the bent piece 30 has substantially the same length as the gap t 1 , preferably slightly longer, so that when the shield plate 11 is rotated downward, it is folded as shown by the phantom line in FIG. The bending piece 30 abuts on the front end surface 13b of the pressing piece 13 to move the shield plate 11 to the one peripheral edge surface 2a.
Since it is pressed against, the vent hole 2 can be surely closed.
第４図、第５図は第２実施例を示し、本体１における通
気口２の一側周縁面2aを垂直に対して上部が下部より他
側寄となるように傾斜させると共に、その上部を他側に
向けて鉤形に折曲して凹部20を形成し、その折曲部に支
持杆12を一体形成すると共に、押え杆13の先端面13bで
遮蔽板11の上部を一側周縁面2aに押しつけてある。4 and 5 show a second embodiment, in which the one peripheral edge surface 2a of the vent hole 2 in the main body 1 is inclined so that the upper part is closer to the other side than the lower part, and the upper part is A hook 20 is bent toward the other side to form a concave portion 20, a support rod 12 is integrally formed on the bent portion, and a tip surface 13b of the pressing rod 13 forms an upper portion of the shielding plate 11 on one peripheral edge surface. It is pressed against 2a.
具体的には本体１の一側寄内周面に、上部が鉤形に折曲
し、下部が水平に対して傾斜した仕切壁21を一体形成す
ると共に、その仕切壁21に開口部22を形成して前記一側
周縁面2aを形成していると共に、押え杆13の先端部13b
を尖端形状としてある。Specifically, on one side inner peripheral surface of the main body 1, a partition wall 21 whose upper part is bent in a hook shape and whose lower part is inclined with respect to the horizontal is integrally formed, and an opening 22 is formed in the partition wall 21. To form the one side peripheral surface 2a, and the tip end portion 13b of the pressing rod 13 is formed.
Has a pointed shape.
このように構成すれば、遮蔽板11が上方に回動した時
に、遮蔽板11の透孔14より上方部11aが凹部20内に臨む
ので、一側周縁面2aに遮蔽板11を押しつけでき、遮蔽板
11が支持杆12に沿って移動しないから下方に回動した時
に一側周縁面2aに確実に接し、しかも一側周縁面2aが傾
斜しているから遮蔽板11は自重によっても一側周縁面2a
に押しつけられるので、両者が相俟って通気口２を確実
に閉じることができる。According to this structure, when the shield plate 11 is rotated upward, the upper portion 11a of the shield plate 11 above the through hole 14 faces the recess 20, so that the shield plate 11 can be pressed against the one side peripheral surface 2a. Shield
Since the 11 does not move along the support rod 12, the shield plate 11 surely contacts the one side peripheral surface 2a when it is rotated downward and the one side peripheral surface 2a is inclined, so that the shield plate 11 is also attached to the one side peripheral surface by its own weight. 2a
Since they are pressed against each other, the both can cooperate with each other to securely close the vent hole 2.
1.遮蔽板11は支持杆12に対して一側周縁面2aに接する下
方位置と一側周縁面2aより離れた上方位置とに亘って上
下に回動するから、本体１の一側から他側に向う空気に
よって遮蔽板11を下方位置として通気口２を閉じ一側か
ら他側に向けて空気が流れることを防止できると共に、
他側から一側に向けて流れる空気によって遮蔽板11を上
方に回動して通気口２を開放し、他側から一側に向けて
空気を流通させることができる。1. Since the shielding plate 11 rotates up and down with respect to the support rod 12 between a lower position in contact with the one side peripheral surface 2a and an upper position apart from the one side peripheral surface 2a, one side of the main body 1 It is possible to prevent the air from flowing from one side to the other side by closing the ventilation port 2 with the shield plate 11 at the lower position by the air directed to the side.
It is possible to rotate the shielding plate 11 upward by the air flowing from the other side to the one side to open the ventilation port 2 and to circulate the air from the other side to the one side.
また、遮蔽板11は透孔14によって支持杆12に対して上下
回動するので、遮蔽板11自体は変形等しないから上方に
回動する力は極く小さくて良い。Further, since the shield plate 11 is rotated up and down with respect to the support rod 12 by the through hole 14, the shield plate 11 itself is not deformed, so that the force for rotating it upward may be extremely small.
したがって、遮蔽板11を極く弱い風によっても上方に回
動して通気口２を開放できるから、床下あるいは小屋裏
に外部の空気をとり入れ易くなる。Therefore, the ventilation plate 2 can be opened by pivoting the shield plate 11 upward even by a very weak wind, so that it becomes easy to take in outside air into the underfloor or the attic.
また、遮蔽板11を下方に回動して閉じた時に折曲片30が
押え杆13の先端面13bに当接して遮蔽板11を一側周縁面2
aに押しつけるので、確実に閉じることができる。Further, when the shield plate 11 is rotated downward and closed, the bending piece 30 abuts on the tip end surface 13b of the pressing rod 13 to move the shield plate 11 to the one peripheral edge surface 2.
Since it is pressed against a, it can be securely closed.
2.遮蔽板11の上部を押え杆13で一側周縁面2aに押しつけ
たので、遮蔽板11を閉じた時に支持杆12に沿って移動し
ないから、一側周縁面2aに確実に接して閉じることがで
き、しかも、一側周縁面2aの上部に形成した凹部20に、
遮蔽板11が上方に回動した時にその上部が臨むので、ス
ムーズに開放できる。2. Since the upper part of the shielding plate 11 is pressed against the one side peripheral surface 2a by the pressing rod 13, it does not move along the supporting rod 12 when the shielding plate 11 is closed, so that the one side peripheral surface 2a is securely contacted and closed. In addition, in the recess 20 formed in the upper part of the one side peripheral surface 2a,
When the shielding plate 11 is rotated upward, its upper part faces so that it can be opened smoothly.
第１図、第２図、第３図は本考案の第１実施例を示し、
第１図は遮蔽板取付部の拡大断面図、第２図は分解斜視
図、第３図は換気装置の概略断面図、第４図、第５図は
第２実施例を示し、第４図は逆止弁部分の断面図、第５
図はその分解斜視図である。 １は本体、２は通気口、2aは一側周縁面、11は遮蔽板、
12は支持杆、13は押え杆、13bは先端面、20は凹部、30
は折曲片。FIGS. 1, 2 and 3 show a first embodiment of the present invention,
FIG. 1 is an enlarged sectional view of a shield plate mounting portion, FIG. 2 is an exploded perspective view, FIG. 3 is a schematic sectional view of a ventilation device, and FIGS. 4 and 5 show a second embodiment, and FIG. Is a cross-sectional view of the check valve portion, fifth
The figure is an exploded perspective view thereof. 1 is a main body, 2 is a ventilation port, 2a is a peripheral surface on one side, 11 is a shielding plate,
12 is a support rod, 13 is a holding rod, 13b is a tip surface, 20 is a recess, 30
Is a bent piece.
Claims (2)
２の一側周縁面2a上部に支持杆12を設け、遮蔽板11の上
部寄に前記支持杆12に遊嵌する透孔14を形成すると共
に、その透孔14を支持杆12に遊嵌し、かつ支持杆12に押
え杆13を、その先端面13bと一側周縁面2aとの間に隙間t
1が形成されるように嵌合して遮蔽板11が支持杆12より
外れないようにし、前記遮蔽板11の上部に、前記隙間t1
と略同一長さの折曲片30を形成したことを特徴とする換
気装置の逆止弁。1. A support rod 12 is provided on an upper portion of a peripheral edge surface 2a of a vent hole 2 of a main body 1 constituting a ventilation device, and a through hole 14 loosely fitted to the support rod 12 is formed near an upper portion of a shielding plate 11. At the same time, the through hole 14 is loosely fitted to the support rod 12, and the holding rod 13 is pressed against the support rod 12 so that a gap t is formed between the tip surface 13b and the one side peripheral surface 2a.
1 so that the shield plate 11 is not disengaged from the support rod 12 so that the gap t 1 is formed in the upper portion of the shield plate 11.
A check valve of a ventilation device, which is characterized in that a bent piece 30 having a length substantially the same as that of is formed.
２の一側周縁面2a上部に支持杆12を設け、遮蔽板11の上
部寄に前記支持杆12に遊嵌する透孔14を形成すると共
に、その透孔14を支持杆12に遊嵌し、かつ支持杆12に押
え杆13を嵌合して遮蔽板11を一側周縁面2aに押しつけ、
さらに前記一側周縁面2aに遮蔽板11の上部11aが臨む凹
部20を形成したことを特徴とする換気装置の逆止弁。2. A support rod 12 is provided on an upper portion of a peripheral edge surface 2a of a vent hole 2 of a main body 1 constituting a ventilation device, and a through hole 14 loosely fitted to the support rod 12 is formed near an upper portion of a shield plate 11. At the same time, the through hole 14 is loosely fitted to the support rod 12, and the holding rod 13 is fitted to the support rod 12 to press the shield plate 11 against the one side peripheral surface 2a,
Further, the check valve of the ventilation device is characterized in that a recess 20 facing the upper portion 11a of the shielding plate 11 is formed on the one side peripheral surface 2a.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1988109034U JPH071365Y2 (en) | 1988-08-22 | 1988-08-22 | Check valve in ventilation system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1988109034U JPH071365Y2 (en) | 1988-08-22 | 1988-08-22 | Check valve in ventilation system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0230409U JPH0230409U (en) | 1990-02-27 |
| JPH071365Y2 true JPH071365Y2 (en) | 1995-01-18 |
Family
ID=31344918
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1988109034U Expired - Lifetime JPH071365Y2 (en) | 1988-08-22 | 1988-08-22 | Check valve in ventilation system |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH071365Y2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3430008B2 (en) * | 1998-03-31 | 2003-07-28 | 松下エコシステムズ株式会社 | Ventilation shutter opening / closing device |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61246534A (en) * | 1985-04-24 | 1986-11-01 | Fukuvi Chem Ind Co Ltd | Under the floor ventilating device |
-
1988
- 1988-08-22 JP JP1988109034U patent/JPH071365Y2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0230409U (en) | 1990-02-27 |
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