JP2000346214A - Balloon valve - Google Patents
Balloon valveInfo
- Publication number
- JP2000346214A JP2000346214A JP11159862A JP15986299A JP2000346214A JP 2000346214 A JP2000346214 A JP 2000346214A JP 11159862 A JP11159862 A JP 11159862A JP 15986299 A JP15986299 A JP 15986299A JP 2000346214 A JP2000346214 A JP 2000346214A
- Authority
- JP
- Japan
- Prior art keywords
- valve
- balloon
- valve body
- casing
- valve element
- 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.)
- Pending
Links
Landscapes
- Pipe Accessories (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】この発明はバルーン弁、詳し
くは圧力流体の注入・排出により袋状の弁体が膨張・収
縮してケーシングの通路を開閉する例えば液体用のバル
ーン弁に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a balloon valve, and more particularly, to a balloon valve for a liquid, for example, which opens and closes a passage in a casing by inflating and deflating a bag-like valve body by injecting and discharging a pressurized fluid.
【０００２】[0002]
【従来の技術】導水管の一種として、道路下に埋設され
る鉄筋コンクリート製のヒューム管および鋼管などがあ
る。これらの管体の口径は、通常、数十ｃｍから数ｍと
大きい。これらの大口径の管体の管路をふさぎ止める弁
として、従来、管状のケーシングに大型のアクチュエー
タを取り付け、そのアクチュエータによりロッドをケー
シング内に突出させて、このケーシング内に設けられた
ゴム製のスリーブを挟みつけて、管路をふさぐという自
動ピンチ弁が知られている。2. Description of the Related Art As a kind of water pipe, there are a reinforced concrete fume pipe and a steel pipe buried under a road. The diameter of these tubes is usually as large as several tens cm to several meters. Conventionally, a large actuator is attached to a tubular casing, and a rod is protruded into the casing by the actuator as a valve for blocking the conduit of these large-diameter pipes. There is known an automatic pinch valve in which a sleeve is sandwiched and a pipe is closed.
【０００３】[0003]
【発明が解決しようとする課題】しかしながら、このよ
うな従来の自動ピンチ弁にあっては、大型のアクチュエ
ータを個々に搭載しているので、コスト高となるほか、
弁自体が大型化し、重量も大きくなっていた。そのた
め、弁を現場まで輸送したり、現場で管体に接続した
り、接続後、定期的なメンテナンスを施す際には、それ
ぞれ数人の作業員を確保しておかなければならなかっ
た。また、これらの作業中、作業員には弁の扱い方に慎
重さが要求された。すなわち、大型で重い分だけ弁の取
り扱いが面倒であり、安全面にも十分に注意をはらう必
要があった。However, in such a conventional automatic pinch valve, since a large-sized actuator is individually mounted, the cost increases, and
The valve itself became larger and heavier. Therefore, when transporting the valve to the site, connecting the valve to the pipe at the site, and performing regular maintenance after the connection, several workers must be secured for each. Also, during these operations, workers were required to be careful in handling valves. That is, the handling of the valve is troublesome because of its large size and heavy weight, and it is necessary to pay sufficient attention to safety.
【０００４】さらには、この自動ピンチ弁にあっては、
このようにスペースをとる大型のアクチュエータが外部
へ突出していた。そのため、弁が接続される管体部分の
周辺環境によっては、障害物が邪魔になるといったこと
で、弁を接続できないとこもあった。そして、一般的な
ピンチ弁の場合、管路閉鎖が比較的短時間で確実に行え
るように、スリーブで挟みつけられる管路部分の開口面
積が小さくなっていた。その結果、弁開時に管路を流れ
る汚水等の流れを阻害してしまうという問題点もあっ
た。Further, in this automatic pinch valve,
Such a large-sized actuator taking up space protrudes outside. For this reason, depending on the surrounding environment of the pipe portion to which the valve is connected, the valve may not be connected because an obstacle may be in the way. Then, in the case of a general pinch valve, the opening area of the pipe portion sandwiched between the sleeves is small so that the pipe line can be closed in a relatively short time. As a result, there is also a problem that the flow of sewage or the like flowing through the pipeline when the valve is opened is obstructed.
【０００５】そこで、この発明者は、鋭意研究の結果、
管体に接続されるケーシング内で膨縮自在なバルーン
（風船）を膨らませば、大型のアクチュエータがなくて
も、その管路を簡単にふさぐことができることを知見
し、この発明を完成させた。[0005] Therefore, the inventor of the present invention has conducted intensive studies,
The inventor has found that the inflatable balloon (balloon) can be inflated easily in a casing connected to the tubular body without using a large-sized actuator, thereby completing the present invention.
【０００６】[0006]
【発明の目的】この発明は、コスト低下およびコンパク
ト化が図れ、しかも取り扱いが容易で安全性が高く、さ
らに管体への接続の自由度が大きいとともに、ケーシン
グ内を通過する流体の流れを阻害しにくく、しかも１台
の圧力流体発生手段により複数個のバルーン弁を閉弁操
作することも可能なバルーン弁を提供することを、その
目的としている。また、この発明は、弁体収納部のコン
パクト化が図れるとともに、弁体膨縮時における弁体の
弁体収納部からの出し入れを円滑に行うことができるバ
ルーン弁を提供することを、その目的としている。An object of the present invention is to reduce the cost and make the device compact, and it is easy to handle and high in safety. Moreover, the present invention has a large degree of freedom in connection to a pipe and obstructs the flow of a fluid passing through the casing. It is an object of the present invention to provide a balloon valve which is difficult to perform and can close a plurality of balloon valves by one pressure fluid generating means. It is another object of the present invention to provide a balloon valve that can reduce the size of a valve body housing portion and can smoothly move a valve body into and out of the valve body housing portion during expansion and contraction of the valve body. And
【０００７】[0007]
【課題を解決するための手段】請求項１に記載の発明
は、通路を画成するケーシングと、ケーシングに設けら
れた弁体収納部と、弁体収納部に収納された袋状の弁体
とを備え、弁体内に圧力流体を供給すると弁体が膨出し
て上記通路をふさぐとともに、この圧力流体を排出する
と弁体が収縮して通路を開通するバルーン弁である。According to the first aspect of the present invention, there is provided a casing defining a passage, a valve element storage portion provided in the casing, and a bag-shaped valve element stored in the valve element storage portion. The valve is a balloon valve that, when a pressure fluid is supplied into the valve body, expands the valve body to block the passage, and when the pressure fluid is discharged, the valve body contracts to open the passage.
【０００８】このバルーン弁の用途は限定されない。例
えば、非常用弁、仮設弁などが挙げられる。また、この
バルーン弁の管体の設置位置は限定されない。管体の端
部でも中間部でもよいし、またはこの管体の任意の長さ
位置でもよい。さらに、ケーシングの素材は限定されな
い。例えば、鋼鉄製、プラスチック製などでもよい。さ
らにまた、このケーシングの大きさ（口径）は限定され
ない。ただし通常は、バルーン弁が接続される管体の大
きさ（口径）によって決定される。そして、このバルー
ン弁が接続される管体の用途、素材、大きさなども限定
されない。各種の流体（気体、液体、粉粒体など）が送
通される管であればよい。具体的には、地中に埋設され
る大径な下水道管、上水道管（ヒューム管、鋼管など）
でもよい。もしくは、地上で引き回されている各種の小
径管でもよい。このほか、土木工事用の掘削推進装置に
接続されて、掘削中の地盤面からわき出てきた泥水（ス
ラリーを含む）を排出する排管などでもよい。[0008] The application of the balloon valve is not limited. For example, an emergency valve, a temporary valve, etc. are mentioned. Further, the installation position of the tube of the balloon valve is not limited. It may be at the end or middle of the tube, or at any length of the tube. Further, the material of the casing is not limited. For example, it may be made of steel or plastic. Furthermore, the size (diameter) of this casing is not limited. However, it is usually determined by the size (diameter) of the tube to which the balloon valve is connected. The use, material, size, and the like of the tube to which the balloon valve is connected are not limited. A pipe through which various fluids (gas, liquid, powder, and the like) are sent may be used. Specifically, large-diameter sewer pipes and water pipes buried underground (fume pipes, steel pipes, etc.)
May be. Alternatively, various small-diameter pipes routed on the ground may be used. In addition, an exhaust pipe connected to an excavation propulsion device for civil engineering to discharge muddy water (including slurry) from the ground surface during excavation may be used.
【０００９】この弁体収納部の断面形状、大きさなどは
限定されない。また、この弁体収納部のケーシング上で
の設置位置も限定されない。さらには、圧力流体の種類
は限定されない。例えば、空気、不活性ガス（窒素ガス
など）などの気体でもよいし、水、油などの液体でもよ
いし、各種の粉粒体でもよい。圧力流体を発生させる手
段も限定されない。例えば、手動式のポンプでもよい
し、自動式のポンプでもよい。The cross-sectional shape, size, etc. of the valve housing are not limited. In addition, the installation position of the valve body housing on the casing is not limited. Further, the type of the pressure fluid is not limited. For example, it may be a gas such as air or an inert gas (such as nitrogen gas), a liquid such as water or oil, or various powders. The means for generating the pressure fluid is not limited. For example, a manual pump or an automatic pump may be used.
【００１０】さらにまた、圧力流体の圧力の大きさも限
定されない。要は、弁体を膨らますことができる圧力で
あればよい。そして、弁体の素材は膨縮可能な素材であ
れば限定されない。例えば、天然ゴム、合成ゴムなどが
挙げられる。続いて、弁体の大きさ、形状、各部分の厚
さ、膨縮の度合いなども限定されない。開弁時には弁体
収納部に収納される一方、閉弁時には風船状に膨らん
で、ケーシングの管路をふさぐことができればよい。Further, the magnitude of the pressure of the pressure fluid is not limited. In short, any pressure that can inflate the valve element may be used. The material of the valve body is not limited as long as it is a material that can be expanded and contracted. Examples include natural rubber and synthetic rubber. Subsequently, the size and shape of the valve body, the thickness of each part, the degree of expansion and contraction, and the like are not limited. When the valve is opened, it is housed in the valve body housing portion, and when the valve is closed, it swells like a balloon so as to close the pipe of the casing.
【００１１】また、請求項２に記載の発明は、上記弁体
は、一方向へ伸縮可能なベローズ部と、ベローズ部の先
端側に設けられた風船部とを有する請求項１に記載のバ
ルーン弁である。ベローズ部と風船部との厚さや大きさ
の比率は限定されない。ただし、風船部に比べてベロー
ズの厚さを厚くした方が、弁体膨縮時における弁体の弁
体収納部からの出し入れがさらに円滑になる。なお、閉
弁時において、このベローズ部の一部が風船部とともに
膨らんで、ケーシングの管路をふさぐようにしてもよ
い。According to a second aspect of the present invention, in the balloon according to the first aspect, the valve body has a bellows portion that can expand and contract in one direction and a balloon portion provided at a tip end side of the bellows portion. It is a valve. The thickness and size ratio of the bellows part and the balloon part are not limited. However, when the thickness of the bellows is increased as compared with the balloon portion, the valve element can be more smoothly taken in and out of the valve element storage portion when the valve element expands and contracts. At the time of closing the valve, a part of the bellows portion may be inflated together with the balloon portion so as to block the pipeline of the casing.
【００１２】[0012]
【作用】この発明によれば、開弁時、弁体が弁体収納部
に収納されているので、管路を流れる流体の流れを阻害
しない。また、閉弁時には、弁体内に圧力流体を供給す
ることで膨らみ、ケーシング内の管路を塞ぐ。その後、
この弁体から圧力流体を排出すれば、弁体が収縮して、
弁体収納部に収納される。これにより、バルーン弁のコ
スト低下およびコンパクト化を図ることができる。しか
も、この弁の取り扱いが容易で、その際の安全性も高
い。さらに、管体への接続の自由度が大きいとともに、
ケーシング内を通過する流体の流れを阻害しにくくな
る。また、このバルーン弁を、同じ管体に複数個配設さ
せた場合または隣接する複数の管体に所定個数だけ配設
させた場合には、１台の圧力流体発生手段を用いて、複
数個のバルーン弁を同時または経時的に閉弁させること
も可能となる。According to the present invention, when the valve is opened, the valve body is housed in the valve body housing, so that the flow of the fluid flowing through the pipeline is not hindered. In addition, when the valve is closed, the valve expands by supplying a pressure fluid into the valve body, thereby closing a pipe in the casing. afterwards,
If the pressure fluid is discharged from this valve, the valve contracts,
It is stored in the valve body storage part. As a result, cost reduction and downsizing of the balloon valve can be achieved. Moreover, the handling of this valve is easy and the safety at that time is high. Furthermore, while the degree of freedom of connection to the tube is large,
It becomes difficult to obstruct the flow of the fluid passing through the inside of the casing. When a plurality of the balloon valves are provided in the same tube or a predetermined number of the balloon valves are provided in a plurality of adjacent tubes, a plurality of balloon valves are provided using one pressure fluid generating means. Can be simultaneously or sequentially closed.
【００１３】特に、請求項２に記載の発明によれば、閉
弁時、弁体内に圧力流体を供給すると、ベローズ部が弁
体収納部内で徐々に膨らんでケーシング内へと伸長して
いく。しかも、風船部が徐々に丸く膨らみ、この膨らん
だ風船部によってケーシングの管路がふさがる。このよ
うに、弁体の元部にベローズ部を設けるように構成した
ので、風船部だけの弁体に比べてその膨縮率が大きい。
その結果、ケーシングの管路の大きさに比べて弁体収納
部をコンパクトに設計することができる。その後、弁体
から圧力流体を排出することにより、風船部が徐々に収
縮していく。それとともに、弁体収納部の内周面に沿っ
てベローズ部が徐々にしぼんでいく。これにより、弁体
が弁体収納部へ収められる。その結果、ベローズ部の存
在により、弁体膨縮時における弁体の弁体収納部からの
出し入れが円滑になる。According to the second aspect of the present invention, when a pressure fluid is supplied to the valve body when the valve is closed, the bellows portion gradually expands in the valve body housing portion and extends into the casing. In addition, the balloon portion gradually expands in a round shape, and the expanded balloon portion blocks the pipeline of the casing. As described above, since the bellows portion is provided at the base of the valve body, the expansion and contraction ratio is larger than that of the valve body having only the balloon portion.
As a result, the valve body housing can be designed to be more compact than the size of the pipe of the casing. Thereafter, the balloon portion is gradually contracted by discharging the pressure fluid from the valve body. At the same time, the bellows portion gradually withdraws along the inner peripheral surface of the valve element storage portion. Thereby, the valve body is housed in the valve body storage section. As a result, due to the presence of the bellows portion, the valve element can be smoothly taken in and out of the valve element storage section when the valve element expands and contracts.
【００１４】[0014]
【発明の実施の形態】以下、図面に基づいて、この発明
の実施例に係るバルーン弁を説明する。図１は、この発
明の一実施例に係るバルーン弁の開弁時を示す要部断面
図である。図２は、この発明の一実施例に係るバルーン
弁の閉弁時を示す要部断面図である。図３は、この発明
の一実施例に係るバルーン弁に用いられる弁体の拡大斜
視図である。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A balloon valve according to an embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is a sectional view showing a main part of a balloon valve according to an embodiment of the present invention when the valve is opened. FIG. 2 is a cross-sectional view of a main part of the balloon valve according to one embodiment of the present invention when the valve is closed. FIG. 3 is an enlarged perspective view of a valve element used for a balloon valve according to one embodiment of the present invention.
【００１５】図１において、１０はバルーン弁であり、
このバルーン弁１０は、管状のケーシング１１と、この
ケーシング１１の周壁に設けられて、ケーシング１１の
管路ａと連通状態でかつ管軸に直交する外方向へ延びた
円筒状の弁体収納部１２と、この弁体収納部１２を外方
からふさぐ平面視して円形の蓋板１３と、弁体収納部１
２の内部に収納されて、圧縮空気（圧力流体）の供給に
よりケーシング１１側へ膨出することでその管路ａをふ
さぐ、風船形状の弁体１４とを備えている。In FIG. 1, reference numeral 10 denotes a balloon valve;
The balloon valve 10 includes a tubular casing 11, and a cylindrical valve body storage portion provided on a peripheral wall of the casing 11 and communicating with a pipe a of the casing 11 and extending outward in a direction perpendicular to a pipe axis. 12, a cover plate 13 that covers the valve body storage section 12 from the outside and is circular in a plan view, and a valve body storage section 1.
And a balloon-shaped valve element 14 that is housed in the interior of the housing 2 and swells toward the casing 11 by the supply of compressed air (pressure fluid) to close the pipe line a.
【００１６】ケーシング１１は短尺な鋼管である。弁体
収納部１２はこのケーシング１１と一体的に鋳造されて
いる。弁体収納部１２の長さは、略ケーシング１１の直
径と同じ長さとなっている。この弁体収納部１２の外端
部には、フランジ１５が一体的に設けられている。この
フランジ１５には、９０度間隔で４つの内ねじが切られ
たボルト孔１５ａが穿設されている。蓋板１３は、フラ
ンジ１５の外径と同じ直径を有している。この蓋板１３
の中央部には、圧縮空気の給排孔１３ａが穿設されてい
る。また、各ボルト孔１５ａと対向する蓋外周部の箇所
には、ボルト孔１５ａより若干径が大きい４つの貫通孔
１３ｂが穿設されている。The casing 11 is a short steel pipe. The valve housing 12 is integrally cast with the casing 11. The length of the valve body storage section 12 is substantially the same as the diameter of the casing 11. A flange 15 is integrally provided at an outer end portion of the valve element housing portion 12. The flange 15 is provided with bolt holes 15a having four internal threads cut at 90-degree intervals. The cover plate 13 has the same diameter as the outer diameter of the flange 15. This lid plate 13
In the central part, a supply / discharge hole 13a for compressed air is formed. Further, four through holes 13b slightly larger in diameter than the bolt holes 15a are formed in the outer peripheral portion of the lid opposed to the bolt holes 15a.
【００１７】図１および図３に示すように、上記弁体１
４は、主に、元部側に配置されて弁体収納部１２の軸線
方向へ伸縮可能な比較的厚肉のベローズ部１６と、先部
側に配置されて比較的薄肉な風船部１７とから構成され
ている。ベローズ部１６の外端部には、フランジ１８が
設けられている。なお、このフランジ１８には、その各
貫通孔１３ｂと対向する位置に、貫通孔１３ｂと同径の
貫通孔１８ａが４つ穿設されている。これらのベローズ
部１６、風船部１７、フランジ１８は、膨縮自在なゴム
により一体成形されている。この弁体１４は、開弁時に
おいて、弁体収納部１２内にちょうど納まる大きさとな
っている。具体的には、開弁時に、この風船部１７の先
端面と、その弁体収納部１２のケーシング１１側の開口
面が略揃うように設計されている。また、ベローズ部１
６の外径は、略弁体収納部１２の内径と同じ大きさにな
っている。このような構造を有している弁体１４は、互
いに一連に合致される３種類の孔１３ｂ，１５ａ，１８
ａに、それぞれボルト（図外）を挿通してフランジ１８
を締結することで、この弁体収納部１２に固定されてい
る。As shown in FIG. 1 and FIG.
Reference numeral 4 denotes a relatively thick bellows portion 16 which is mainly disposed on the base portion side and is capable of expanding and contracting in the axial direction of the valve element housing portion 12, and a relatively thin balloon portion 17 which is disposed on the front end side. It is composed of A flange 18 is provided at an outer end of the bellows portion 16. The flange 18 is provided with four through holes 18a having the same diameter as the through holes 13b at positions facing the respective through holes 13b. These bellows portion 16, balloon portion 17, and flange 18 are integrally formed of expandable and contractible rubber. The valve element 14 is sized to fit in the valve element housing 12 when the valve is opened. Specifically, it is designed such that when the valve is opened, the front end surface of the balloon portion 17 and the opening surface of the valve body housing portion 12 on the casing 11 side are substantially aligned. Bellows part 1
The outer diameter of 6 is substantially the same size as the inner diameter of the valve element housing 12. The valve body 14 having such a structure is provided with three kinds of holes 13b, 15a, 18
a through each bolt (not shown), and
Are fixed to the valve body storage portion 12.
【００１８】次に、この一実施例のバルーン弁１０の使
用方法を説明する。まず、図１に示すバルーン弁１０の
開弁時には、弁体１４が弁体収納部１２に収納されてい
る。そのため、この弁体１４の存在によって、その管路
を流れる流体ｂの流れを阻害することがない。一方、図
２に示す閉弁時には、給排孔１３ａに図示しないノズル
を接続し、このノズルおよび給排孔１３ａを介して、同
じく図示しない圧縮空気発生装置からの圧縮空気を弁体
１４の内部空間へと供給する。これにより、ベローズ部
１６が弁体収納部１２の内周面に沿って徐々に膨らんで
ケーシング１１内へと伸長していく。しかも、風船部１
７が徐々に丸く膨らみ、膨らんだ風船部１７によりケー
シング１１管路がふさがる。このように、弁体１４の元
部にベローズ部１６を設けるようにしたので、風船部１
７だけの弁体１４に比べて膨縮率が大きい。その結果、
ケーシング１１の管路の大きさに比べて弁体収納部１２
をコンパクトに設計することができる。Next, a method of using the balloon valve 10 of this embodiment will be described. First, when the balloon valve 10 shown in FIG. 1 is opened, the valve element 14 is stored in the valve element storage section 12. Therefore, the flow of the fluid b flowing through the pipeline is not hindered by the presence of the valve element 14. On the other hand, when the valve is closed as shown in FIG. 2, a nozzle (not shown) is connected to the supply / discharge hole 13a, and compressed air from a compressed air generator (not shown) is also supplied to the inside of the valve body 14 through the nozzle and the supply / discharge hole 13a. Supply to space. Accordingly, the bellows portion 16 gradually expands along the inner peripheral surface of the valve body housing portion 12 and extends into the casing 11. Moreover, the balloon part 1
7 gradually expands in a round shape, and the expanded balloon portion 17 closes the pipeline of the casing 11. As described above, since the bellows portion 16 is provided at the base of the valve body 14, the balloon portion 1 is provided.
The expansion and contraction ratio is larger than that of the valve element 14 having only seven valves. as a result,
Compared to the size of the conduit of the casing 11, the valve housing 12
Can be designed compactly.
【００１９】その後、図１に示すように、上記図外のノ
ズルを外し、給排孔１３ａから弁体１４内の圧縮空気を
排出することにより、風船部１７が徐々にしぼんでい
く。それとともに、弁体収納部１２の内周面に沿って厚
肉なベローズ部１６が比較的大きな力でしぼんでいく。
このため、弁体１４が弁体収納部１２へ支障なく収めら
れる。このように、厚肉なベローズ部１６を設けるよう
にしたので、弁体膨縮時における弁体１４の弁体収納部
１２からの出し入れを円滑にすることができる。しか
も、ケーシング１１に弁体収納部１２を設け、弁体収納
部１２に風船形状の弁体１４を収納するようにしたの
で、バルーン弁１０のコスト低下およびコンパクト化を
図ることができる。また、大型のバルーン弁１０を使用
する場合であっても、従来の自動ピンチ弁のように大径
のアクチュエータが搭載されていないので、比較的その
取り扱いが容易となり、その際の安全性も比較的高い。Then, as shown in FIG. 1, the balloon 17 is gradually deflated by removing the nozzle (not shown) and discharging the compressed air in the valve body 14 from the supply / discharge hole 13a. At the same time, the thick bellows portion 16 withdraws along the inner peripheral surface of the valve body housing portion 12 with a relatively large force.
For this reason, the valve element 14 is accommodated in the valve element storage portion 12 without any trouble. Since the thick bellows portion 16 is provided in this manner, it is possible to smoothly put the valve body 14 in and out of the valve body storage part 12 when the valve body expands and contracts. In addition, since the valve body housing section 12 is provided in the casing 11 and the balloon-shaped valve body 14 is housed in the valve body housing section 12, the cost and the size of the balloon valve 10 can be reduced. Even when a large balloon valve 10 is used, since a large-diameter actuator is not mounted unlike a conventional automatic pinch valve, its handling is relatively easy, and safety at that time is also compared. High.
【００２０】さらには、この従来の自動ピンチ弁に比べ
て、ケーシング１１から外方へ突出する部分、具体的に
は大型のアクチュエータに対する弁体収納部１２が小さ
い。そのため、仮にバルーン弁１０が接続される管体部
分の周囲に障害物がある場合であっても、支障なくバル
ーン弁１０を接続することができる頻度が高くなる。こ
れにより、バルーン弁１０の管体への接続の自由度が大
きくなる。そして、このバルーン弁１０は、閉弁時にだ
け、この給排孔１３ａに圧縮空気供給用のノズルを接続
して弁体１４を膨らませるようにしている。こうして、
バルーン弁１０のさらなるコンパクト化を図っている。
ただし、常時、このノズルを給排孔１３ａに接続するこ
とも可能である。なお、この弁体１４を膨らませるため
の器具として、手動式のエアポンプを採用することもで
きる。Further, as compared with the conventional automatic pinch valve, a portion protruding outward from the casing 11, specifically, a valve housing 12 for a large actuator is smaller. Therefore, even if there is an obstacle around the tubular body to which the balloon valve 10 is connected, the frequency at which the balloon valve 10 can be connected without any trouble increases. Thereby, the degree of freedom of connection of the balloon valve 10 to the tube is increased. And, only when the balloon valve 10 is closed, a nozzle for supplying compressed air is connected to the supply / discharge hole 13a so that the valve body 14 is inflated. Thus,
The balloon valve 10 is further downsized.
However, it is also possible to always connect this nozzle to the supply / discharge hole 13a. It should be noted that a manual air pump can be employed as a device for inflating the valve element 14.
【００２１】[0021]
【発明の効果】この発明によれば、管状のケーシングに
弁体収納部を設け、この弁体収納部に風船形状の弁体を
収納するようにしたので、バルーン弁のコスト低下およ
びコンパクト化が図れ、その取り扱いが容易でその際の
安全性も高く、さらには管体への接続の自由度が大きく
て、またケーシング内を通過する流体の流れを阻害しに
くいという効果が得られる。しかも、１台の圧力流体発
生手段により複数個のバルーン弁を閉弁操作することも
可能となる。According to the present invention, the valve casing is provided in the tubular casing, and the balloon-shaped valve is accommodated in the valve casing, so that the cost and the size of the balloon valve can be reduced. The effect is that the handling is easy, the safety at that time is high, the degree of freedom of connection to the pipe is large, and the flow of the fluid passing through the casing is hardly obstructed. In addition, a plurality of balloon valves can be operated to be closed by one pressure fluid generating means.
【００２２】特に、請求項２に記載の発明によれば、こ
の弁体の構造を、元部側のベローズ部と先部側の風船部
とを有するものとしたので、弁体膨縮時におけるこの弁
体の弁体収納部からの出し入れを円滑に行うことができ
る。In particular, according to the second aspect of the present invention, the structure of the valve body has the bellows portion on the base portion side and the balloon portion on the front side portion, so that the valve body at the time of expansion and contraction of the valve body is formed. It is possible to smoothly put the valve body in and out of the valve body storage part.
【図１】この発明の一実施例に係るバルーン弁の開弁時
を示す要部断面図である。FIG. 1 is a cross-sectional view illustrating a main part of a balloon valve according to an embodiment of the present invention when the balloon valve is opened.
【図２】この発明の一実施例に係るバルーン弁の閉弁時
を示す要部断面図である。FIG. 2 is a cross-sectional view of a main part of the balloon valve according to the embodiment of the present invention when the balloon valve is closed.
【図３】この発明の一実施例に係るバルーン弁に用いら
れる弁体の拡大斜視図である。FIG. 3 is an enlarged perspective view of a valve element used for a balloon valve according to one embodiment of the present invention.
１０ バルーン弁、 １１ ケーシング、 １２ 弁体収納部、 １４ 弁体、 １６ ベローズ部、 １７ 風船部、 ａ 管路。 10 balloon valve, 11 casing, 12 valve body storage part, 14 valve body, 16 bellows part, 17 balloon part, a pipe.
Claims (2)
をふさぐとともに、この圧力流体を排出すると弁体が収
縮して通路を開通するバルーン弁。A casing that defines a passage; a valve body accommodating portion provided in the casing; and a bag-shaped valve body accommodated in the valve body accommodating portion. A balloon valve in which a body expands to block the passage, and when the pressure fluid is discharged, the valve body contracts to open the passage.
ズ部と、ベローズ部の先端側に設けられた風船部とを有
する請求項１に記載のバルーン弁。2. The balloon valve according to claim 1, wherein the valve body has a bellows portion that can expand and contract in one direction, and a balloon portion provided at a tip end side of the bellows portion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11159862A JP2000346214A (en) | 1999-06-07 | 1999-06-07 | Balloon valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11159862A JP2000346214A (en) | 1999-06-07 | 1999-06-07 | Balloon valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2000346214A true JP2000346214A (en) | 2000-12-15 |
Family
ID=15702851
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11159862A Pending JP2000346214A (en) | 1999-06-07 | 1999-06-07 | Balloon valve |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2000346214A (en) |
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