JPH07158957A - Reverse flow preventive damper - Google Patents
Reverse flow preventive damperInfo
- Publication number
- JPH07158957A JPH07158957A JP30375593A JP30375593A JPH07158957A JP H07158957 A JPH07158957 A JP H07158957A JP 30375593 A JP30375593 A JP 30375593A JP 30375593 A JP30375593 A JP 30375593A JP H07158957 A JPH07158957 A JP H07158957A
- Authority
- JP
- Japan
- Prior art keywords
- conduit
- pipe
- ring
- exhaust
- conduits
- 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.)
- Granted
Links
Landscapes
- Check Valves (AREA)
- Air-Flow Control Members (AREA)
Abstract
Description
【0001】[0001]
【産業上の利用分野】この発明は逆流防止ダンパに関
し、特にたとえば多管路管の各管路における排気の逆流
を防止するために用いられる、逆流防止ダンパに関す
る。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a backflow prevention damper, and more particularly to a backflow prevention damper used for preventing backflow of exhaust gas in each conduit of a multi-conduit tube.
【0002】[0002]
【従来の技術】図5に示すこの種の従来の逆流防止ダン
パ1は、略円筒状の枠体2を含み、枠体2には、ブレー
ド3aおよび3bが連結される。そして、このような逆
流防止ダンパ1が、そのゴム輪受口4に二管路管5が接
続される伸縮アダプタ6の直管部7に装着される。ブレ
ード3aおよび3bは、通常、図示しないばねの押圧力
によって閉鎖されているが、排気を通すと、その風圧に
よって開放される。2. Description of the Related Art A conventional backflow preventing damper 1 of this type shown in FIG. 5 includes a substantially cylindrical frame body 2, to which blades 3a and 3b are connected. Then, such a backflow prevention damper 1 is attached to the straight pipe portion 7 of the expansion and contraction adapter 6 to which the two pipe passage pipe 5 is connected to the rubber ring receiving port 4. The blades 3a and 3b are normally closed by the pressing force of a spring (not shown), but are opened by the wind pressure when exhaust gas is passed through.
【0003】[0003]
【発明が解決しようとする課題】従来の逆流防止ダンパ
1では、伸縮アダプタ6の直管部7に装着されていたた
め、逆流防止ダンパ1と二管路管5との間に空間8が形
成され、この空間8を介して二管路管5の各管路が互い
に連通されていた。したがって、二管路管5の一方の管
路を通して排出された排気の一部が他方の管路を逆流す
る恐れがあった。たとえば、一方の管路が風呂に連通さ
れており、他方の管路が便所に連通されている場合に
は、風呂の湿気が便所に流入し、便所の悪臭が風呂に流
入する恐れがあった。In the conventional backflow prevention damper 1, since it is mounted on the straight pipe portion 7 of the expansion and contraction adapter 6, a space 8 is formed between the backflow prevention damper 1 and the two conduit pipe 5. The respective conduits of the two conduit pipes 5 were communicated with each other through this space 8. Therefore, there is a risk that a part of the exhaust gas discharged through one of the two conduits will flow backward through the other conduit. For example, if one conduit is in communication with the bath and the other conduit is in communication with the toilet, the humidity of the bath may flow into the toilet and the stench of the toilet may flow into the bath. .
【0004】それゆえに、この発明の主たる目的は、一
の管路に他の管路の排気が逆流するのを防止できる、逆
流防止ダンパを提供することである。Therefore, a main object of the present invention is to provide a backflow prevention damper capable of preventing exhaust gas of another pipe from backflowing into one pipe line.
【0005】[0005]
【課題を解決するための手段】この発明は、多管路管の
仕切に装着される取付部、取付部に形成され、多管路管
の各管路の内面に沿う外形を有するリング状部、多管路
管の各管路を個別に開閉し得るように取付部に取り付け
られ、閉状態においてリング状部に当接されるブレー
ド、および取付部とリング状部とを連結してリング状部
を補強する補強部を備える、逆流防止ダンパである。SUMMARY OF THE INVENTION The present invention is directed to a mounting portion mounted on a partition of a multi-conduit tube, a ring-shaped portion formed on the mounting portion and having an outer shape along the inner surface of each conduit of the multi-conduit tube. A blade that is attached to the attachment portion so as to be able to individually open and close each pipeline of the multi-pipe pipe, and contacts the ring-shaped portion in the closed state, and a ring shape that connects the attachment portion and the ring-shaped portion It is a backflow prevention damper provided with the reinforcement part which reinforces a part.
【0006】[0006]
【作用】多管路管の仕切に取付部を装着し、各管路内に
リング状部およびブレードを配置する。各ブレードは、
通常、ばねの押圧力によって閉鎖されており、排気を通
すと、その風圧によって一方方向に開放される。また、
補強部によってリング状部が補強されているので、リン
グ状部を管路に挿入する際等に、リング状部が変形また
は破損されるといった問題は生じない。Operation: The mounting portion is attached to the partition of the multi-pipe pipe, and the ring-shaped portion and the blade are arranged in each pipe passage. Each blade is
Normally, it is closed by the pressing force of the spring, and when exhaust gas is passed, it is opened in one direction by the wind pressure. Also,
Since the ring-shaped portion is reinforced by the reinforcing portion, there is no problem that the ring-shaped portion is deformed or damaged when the ring-shaped portion is inserted into the conduit or the like.
【0007】[0007]
【発明の効果】この発明によれば、一の管路に他の管路
の排気が逆流するのを確実に防止できる。この発明の上
述の目的,その他の目的,特徴および利点は、図面を参
照して行う以下の実施例の詳細な説明から一層明らかと
なろう。According to the present invention, it is possible to reliably prevent the exhaust gas from the other pipeline from flowing back into the one pipeline. The above-mentioned objects, other objects, features and advantages of the present invention will become more apparent from the following detailed description of the embodiments with reference to the drawings.
【0008】[0008]
【実施例】図1および図2を参照して、この実施例の逆
流防止ダンパ10は、各管路12aおよび12bの一方
端が図示しない個別の排気源(風呂,便所等)に接続さ
れる二管路管14の他方端に装着されるものであり、た
とえばポリエチレン等の合成樹脂の射出成形等によって
形成される本体16を含む。本体16は略コ字状の取付
部18を含み、取付部18の開放端から上下方向に立ち
上がって、二管路管14の内面に沿う外形を有するリン
グ状部20aおよび20bが形成される。リング状部2
0aおよび20bには、図3および図4からよくわかる
ように、それぞれが略半球状の頭部22を有する複数の
突部24が所定箇所に形成され、突部24を用いてゴム
パッキン26aおよび26bが取り付けられる。そし
て、リング状部20aおよび20bと取付部18とがそ
れぞれ補強部28aおよび28bを介して連結され、そ
れによって、リング状部20aおよび20bが補強され
る。さらに、リング状部20aおよび20bの立ち上が
り基部には、略円筒状の軸受30aおよび30b(図示
せず)が取り付けられる。1 and 2, the backflow preventing damper 10 of this embodiment has one end of each of the conduits 12a and 12b connected to an individual exhaust source (not shown) (bath, toilet, etc.). It is attached to the other end of the two-pipe tube 14, and includes a main body 16 formed by injection molding of a synthetic resin such as polyethylene. The main body 16 includes a substantially U-shaped mounting portion 18, and rises vertically from an open end of the mounting portion 18 to form ring-shaped portions 20 a and 20 b having an outer shape along the inner surface of the two-pipe tube 14. Ring-shaped part 2
As can be seen from FIGS. 3 and 4, a plurality of protrusions 24 each having a substantially hemispherical head portion 22 are formed at predetermined positions on 0a and 20b, and the rubber packings 26a and 26b is attached. Then, the ring-shaped portions 20a and 20b and the mounting portion 18 are connected via the reinforcing portions 28a and 28b, respectively, and thereby the ring-shaped portions 20a and 20b are reinforced. Further, substantially cylindrical bearings 30a and 30b (not shown) are attached to the rising bases of the ring-shaped portions 20a and 20b.
【0009】そして、本体16には、二管路管14の各
管路12aおよび12bを開閉するための、ポリエチレ
ン等の合成樹脂からなる略半円板状のブレード32aお
よび32bが連結される。すなわち、ブレード32aに
形成された軸受34aとコイルばね36aとが本体16
に取り付けられた軸受30aに対して一直線上に配置さ
れ、これらにシャフト38aが通され、それによって、
ブレード32aと本体16とが連結される。また、ブレ
ード32bに形成された軸受34b(図示せず)とコイ
ルばね36b(図1)とが本体16に取り付けられた軸
受30b(図示せず)に対して一直線上に配置され、こ
れらにシャフト38bが通され、それによって、ブレー
ド32bと本体16とが連結される。したがって、ブレ
ード32aおよび32bには、コイルばね36aおよび
36bによって閉鎖方向の押圧力が加えられる。なお、
ブレード32aおよび32bと当接するリング状部20
aおよび20bの当接面には、気密性を向上する等のた
めに、ゴム板を張り付けたり、あるいはシール材をコー
キングするようにしてもよい。The body 16 is connected with blades 32a and 32b, which are made of synthetic resin such as polyethylene and have a substantially semicircular disk shape, for opening and closing the conduits 12a and 12b of the two-pipe conduit 14. That is, the bearing 34a and the coil spring 36a formed on the blade 32a are connected to the main body 16
Are arranged in line with the bearings 30a attached to them, through which the shafts 38a are passed, whereby
The blade 32a and the main body 16 are connected. Further, the bearing 34b (not shown) formed on the blade 32b and the coil spring 36b (FIG. 1) are arranged in a straight line with respect to the bearing 30b (not shown) attached to the main body 16, and the shaft is attached to them. 38b is passed therethrough, thereby connecting the blade 32b and the main body 16. Therefore, a pressing force in the closing direction is applied to the blades 32a and 32b by the coil springs 36a and 36b. In addition,
Ring-shaped portion 20 that abuts on the blades 32a and 32b
A rubber plate may be attached to the abutting surfaces of a and 20b to improve airtightness, or a sealing material may be caulked.
【0010】このような逆流防止ダンパ10が、取付部
18によって仕切38を挟むようにして二管路管14の
端部に装着される。そして、この端部が、図1に示すよ
うに、外壁40にモルタル42で固定された伸縮アダプ
タ44のゴム輪受口46に挿入される。二管路管14の
管路12aおよび12bに接続された図示しない排気源
から排気が送出されると、その風圧によってブレード3
2aおよび32bが開放され、排気は伸縮アダプタ44
の合流排気管部としての直管部48を通して屋外へ排出
される。図示しない各排気源から排気が送出されなけれ
ば、ブレード32aおよび32bはコイルばね36aお
よび36bの押圧力によって閉鎖され、各管路12aお
よび12bは閉鎖される。Such a backflow preventing damper 10 is attached to the end portion of the two-pipe pipe 14 so that the partition 38 is sandwiched between the mounting portions 18. Then, as shown in FIG. 1, this end portion is inserted into the rubber ring receptacle 46 of the expansion and contraction adapter 44 fixed to the outer wall 40 with the mortar 42. When exhaust gas is delivered from an exhaust source (not shown) connected to the conduits 12a and 12b of the two conduit pipe 14, the blade 3 is blown by the wind pressure thereof.
2a and 32b are opened, and the exhaust is a telescopic adapter 44
Is discharged to the outside through the straight pipe portion 48 as the combined exhaust pipe portion. If the exhaust gas is not delivered from each exhaust source (not shown), the blades 32a and 32b are closed by the pressing force of the coil springs 36a and 36b, and the respective pipelines 12a and 12b are closed.
【0011】この実施例によれば、一方の管路12aあ
るいは12bを通して排出された排気が他方の管路12
bあるいは12aを逆流するのを確実に防止できる。ま
た、補強部28aおよび28bによってリング状部20
aおよび20bが補強されているので、逆流防止ダンパ
10を二管路管14に装着する際等にリング状部20a
および20bが変形または破損されるといった問題は生
じない。According to this embodiment, the exhaust gas discharged through one of the conduits 12a or 12b is transferred to the other conduit 12 of the other conduit.
It is possible to reliably prevent backflow of b or 12a. Further, the ring-shaped portion 20 is provided by the reinforcing portions 28a and 28b.
Since the a and 20b are reinforced, the ring-shaped portion 20a is used when the backflow prevention damper 10 is mounted on the two-pipe pipe 14, etc.
There is no problem that the 20 and 20b are deformed or damaged.
【0012】また、ゴムパッキン26aおよび26bに
よって逆流防止ダンパ10の外周部の気密性を確保でき
る。さらに、本体16,ブレード32aおよび32bを
合成樹脂で形成するようにしているので、これらをステ
ンレス等で形成した場合に生じるブレード開閉時の騒音
を解消できる。Further, the rubber packings 26a and 26b can ensure the airtightness of the outer peripheral portion of the backflow prevention damper 10. Furthermore, since the main body 16 and the blades 32a and 32b are made of synthetic resin, the noise when the blades are opened and closed when they are made of stainless steel or the like can be eliminated.
【0013】なお、この実施例では、各管路12aおよ
び12bに対応するブレード32aおよび32bが取付
部18によって互いに連結されているが、これらを独立
して形成して各管路12aおよび12bに個別に装着す
るようにしてもよい。また、この発明は、二管路管以外
に、三管路管や四管路管等の他の多管路管に対しても適
用され得る。In this embodiment, the blades 32a and 32b corresponding to the respective pipelines 12a and 12b are connected to each other by the mounting portion 18, but they are independently formed to form the respective pipelines 12a and 12b. You may make it attach individually. In addition to the two-pipe pipe, the present invention can be applied to other multi-pipe pipes such as a three-pipe pipe and a four-pipe pipe.
【図1】この発明の一実施例を示す図解図である。FIG. 1 is an illustrative view showing one embodiment of the present invention.
【図2】図1の実施例の分解斜視図である。2 is an exploded perspective view of the embodiment of FIG. 1. FIG.
【図3】リング状部にゴムパッキンを取り付けた状態を
示す図解図である。FIG. 3 is an illustrative view showing a state where a rubber packing is attached to a ring-shaped portion.
【図4】図3におけるIV−IV線拡大断面図である。FIG. 4 is an enlarged sectional view taken along line IV-IV in FIG.
【図5】従来技術を示す図解図である。FIG. 5 is an illustrative view showing a conventional technique.
10 …逆流防止ダンパ 12a,12b …管路 18 …取付部 20a,20b …リング状部 26a,26b …ゴムパッキン 28a,28b …補強部 30a,30b,34a,34b …軸受 36a,36b …コイルばね 38 …仕切 38a,38b …シャフト 44 …伸縮アダプタ 10 ... Backflow prevention damper 12a, 12b ... Pipe line 18 ... Attachment part 20a, 20b ... Ring-shaped part 26a, 26b ... Rubber packing 28a, 28b ... Reinforcement part 30a, 30b, 34a, 34b ... Bearing 36a, 36b ... Coil spring 38 ... Partitions 38a, 38b ... Shaft 44 ... Telescopic adapter
Claims (1)
沿う外形を有するリング状部、 前記多管路管の各管路を個別に開閉し得るように前記取
付部に取り付けられ、閉状態において前記リング状部に
当接されるブレード、および前記取付部と前記リング状
部とを連結して前記リング状部を補強する補強部を備え
る、逆流防止ダンパ。1. A mounting portion mounted on a partition of a multi-pipe pipe, a ring-shaped portion formed on the mounting portion and having an outer shape along the inner surface of each pipe of the multi-pipe pipe, A blade that is attached to the attachment portion so as to be able to individually open and close each of the pipelines, and that abuts the ring-shaped portion in the closed state, and the ring-shaped portion that connects the attachment portion and the ring-shaped portion. A backflow prevention damper having a reinforcing portion for reinforcing the portion.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP30375593A JP2879878B2 (en) | 1993-12-03 | 1993-12-03 | Backflow prevention damper |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP30375593A JP2879878B2 (en) | 1993-12-03 | 1993-12-03 | Backflow prevention damper |
Publications (2)
Publication Number | Publication Date |
---|---|
JPH07158957A true JPH07158957A (en) | 1995-06-20 |
JP2879878B2 JP2879878B2 (en) | 1999-04-05 |
Family
ID=17924888
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP30375593A Expired - Fee Related JP2879878B2 (en) | 1993-12-03 | 1993-12-03 | Backflow prevention damper |
Country Status (1)
Country | Link |
---|---|
JP (1) | JP2879878B2 (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2001141296A (en) * | 1999-11-12 | 2001-05-25 | Kurimoto Ltd | Vent structure for double-layered pipe |
KR100894397B1 (en) * | 2008-07-15 | 2009-04-20 | 이준길 | Auto switching apparatus using wind force and gravity |
CN106763923A (en) * | 2016-12-15 | 2017-05-31 | 中国北方车辆研究所 | Anti-backflow one-way cock |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102927325A (en) * | 2012-10-29 | 2013-02-13 | 宜兴台玉环境工程设备有限公司 | Circular automatic inverted air valve |
-
1993
- 1993-12-03 JP JP30375593A patent/JP2879878B2/en not_active Expired - Fee Related
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2001141296A (en) * | 1999-11-12 | 2001-05-25 | Kurimoto Ltd | Vent structure for double-layered pipe |
KR100894397B1 (en) * | 2008-07-15 | 2009-04-20 | 이준길 | Auto switching apparatus using wind force and gravity |
CN106763923A (en) * | 2016-12-15 | 2017-05-31 | 中国北方车辆研究所 | Anti-backflow one-way cock |
Also Published As
Publication number | Publication date |
---|---|
JP2879878B2 (en) | 1999-04-05 |
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