JP2009216196A - Sealing structure for pipe - Google Patents

Sealing structure for pipe Download PDF

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JP2009216196A
JP2009216196A JP2008061544A JP2008061544A JP2009216196A JP 2009216196 A JP2009216196 A JP 2009216196A JP 2008061544 A JP2008061544 A JP 2008061544A JP 2008061544 A JP2008061544 A JP 2008061544A JP 2009216196 A JP2009216196 A JP 2009216196A
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pipe
flange
ring
rubber
outer peripheral
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JP5128325B2 (en
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Taiichiro Mitsutake
泰一郎 光武
Hiroaki Fuchigami
博章 渕上
Keiichi Hirata
啓一 平田
Daiji Nomaguchi
大二 野間口
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Chukoh Chemical Industries Ltd
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Chukoh Chemical Industries Ltd
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Abstract

<P>PROBLEM TO BE SOLVED: To enable cost reduction with a simple structure, to enable securement of uniform sealing performance, and to facilitate insertion and removal. <P>SOLUTION: In a sealing structure for pipe which seals one end side of a pipe 1 feeding a fluid and an inserted member 2 at the joint part of the inserted member, a first ring-shaped flange part 1a is provided at one end side of the pipe, a second ring-shaped flange part 2a extends toward the outer direction and is provided around the joint part of the inserted member, an O-ring 4 is provided at the outer peripheral part of the pipe so as to press the first flange part against the inserted member, a cylindrical fastener 5 is provided at the outer peripheral part of the pipe so as to press the O-ring toward the first flange part, and a fixing member 6 is provided at the outer peripheral part of the pipe so as to fix the second flange part. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

本発明は、家庭及び業務用燃料電池の水道・給湯器、自動車用燃料電池、例えばヒートポンプ方式のエコ給湯器、及び半導体・液晶製造装置、化学プラントのガス、給油、純水、食品製造、医薬品製造、化粧品製造等の流体を流す配管の継手部をシールするための配管のシール構造体に関する。   The present invention relates to water and water heaters for household and commercial fuel cells, fuel cells for automobiles, such as heat pump eco water heaters, semiconductor and liquid crystal manufacturing apparatuses, chemical plant gas, oil supply, pure water, food manufacturing, pharmaceuticals The present invention relates to a pipe sealing structure for sealing a joint part of a pipe for flowing a fluid for manufacturing, cosmetics manufacturing or the like.

従来、ホースニップルの外周面に螺旋補強ホースを挿着し、この螺旋補強ホースの外周に、ホースニップルへ向けて常時押圧する緊締バンドを取り付けたホース締め付け具が知られている（特許文献１）。   2. Description of the Related Art Conventionally, there is known a hose fastening tool in which a spiral reinforcing hose is inserted on the outer peripheral surface of a hose nipple, and a fastening band that is always pressed toward the hose nipple is attached to the outer periphery of the helical reinforcing hose (Patent Document 1) .

また、自動車用配管等の流体配管連結具に樹脂チューブを接続する樹脂チューブの接続構造及び接続方法に関する技術で、チューブ接続部と熱可塑性樹脂チューブとゴム弾性バンドとを備え、ゴム弾性バンドに特徴を有した樹脂チューブの接続側端部に嵌め付けられた樹脂チューブの接続構造体が知られている（特許文献２）。   In addition, it is a technology related to a resin tube connection structure and connection method for connecting a resin tube to a fluid pipe connector such as an automobile pipe, and includes a tube connection part, a thermoplastic resin tube, and a rubber elastic band. 2. Description of the Related Art A resin tube connection structure that is fitted to a connection side end of a resin tube having a contact is known (Patent Document 2).

更に、弾性ホースを自動車のエンジンやフューエルタンク等の回りに配設される配管機器に接続する際に使用されるホース端部の接続構造体及びその接続方法に関する技術で、ホース接続用管状部と、弾性ホースと、接着剤層と、締結対とを具備したホース端部の接続構造体が知られている（特許文献３）。
特開２００１−５０４５４号公報 特開２００４−２３９４１２号公報 特開平７−３１７９８１号公報 Furthermore, a hose connecting tubular portion used for connecting a resilient hose to a piping device disposed around an automobile engine, a fuel tank, etc. A connection structure of a hose end portion including an elastic hose, an adhesive layer, and a fastening pair is known (Patent Document 3).
JP 2001-50454 A JP 2004-239212 A JP 7-317981 A

しかしながら、従来技術においては、構造が複雑でコスト高を招いたり、あるいは配管とホースニップル等の被挿着部材とのシール性を十分確保できず、さらには装脱着に時間がかかる等の問題があった。   However, in the prior art, there is a problem that the structure is complicated and the cost is high, or the sealing performance between the piping and the insertion member such as the hose nipple cannot be sufficiently secured, and further, it takes time to attach and detach. there were.

本発明は上記事情を考慮してなされたもので、極めて構造が簡素でコスト低減を図ることができ、かつ配管の一端の鍔部から均等に加圧して均一なシール性を確保でき、さらに装脱着が容易な配管のシール構造体を提供することを目的とする。   The present invention has been made in consideration of the above-mentioned circumstances, has an extremely simple structure and can reduce costs, and can evenly pressurize from a flange portion at one end of a pipe to ensure uniform sealing performance. It is an object of the present invention to provide a pipe seal structure that can be easily detached.

本発明に係る配管のシール構造体は、流体を流す配管の一端側と被挿着部材とを該被挿着部材の継手部でシールする配管のシール構造体であり、前記配管の一端側にはリング状の第１の鍔部が設けられ、前記被挿着部材の継手部周辺には、外側方向に延出するリング状の第２の鍔部が設けられ、前記被挿着部材の継手部に前記配管の第１の鍔部側が挿着された状態で、第１の鍔部を被挿着部材に押圧するようにＯリングが配管の外周部に設けられ、前記被挿着部材の継手部に前記配管の第１の鍔部側が挿着された状態で、筒状の締結具が前記Ｏリングを第１の鍔部側に押圧するように配管の外周部に設けられ、前記被挿着部材の継手部に前記配管の第１の鍔部側が挿着された状態で、前記第２の鍔部を固定するように固定具が配管の外周部に設けられていることを特徴とする。   The pipe seal structure according to the present invention is a pipe seal structure that seals one end side of a pipe through which a fluid flows and a member to be inserted by a joint portion of the member to be inserted. A ring-shaped first flange is provided, and a ring-shaped second flange extending in the outer direction is provided around the joint portion of the inserted member, and the joint of the inserted member In the state where the first flange portion side of the pipe is inserted into the portion, an O-ring is provided on the outer peripheral portion of the pipe so as to press the first flange portion against the insertion member. In a state where the first flange side of the pipe is inserted into the joint portion, a cylindrical fastener is provided on the outer peripheral portion of the pipe so as to press the O-ring toward the first flange side, and In a state where the first flange part side of the pipe is inserted into the joint part of the insertion member, a fixture is attached to the outer peripheral part of the pipe so as to fix the second flange part. Vignetting wherein the are.

本発明によれば、極めて構造が簡素でコスト低減を図ることができ、かつ配管の一端の鍔部から均等に加圧して均一なシール性を確保でき、さらに装脱着が容易な配管のシール構造体が得られる。   According to the present invention, the structure of the pipe is extremely simple and can be reduced in cost, and can be evenly pressurized from the flange portion at one end of the pipe to ensure uniform sealing performance, and can be easily attached and detached. The body is obtained.

以下、本発明の配管のシール構造体について更に詳しく説明する。
本発明において、Ｏリングの材質としては、例えばニトリルゴム、スチレンブタジエンゴム、シリコーンゴム、フッ素ゴム、エチレンプロピレンゴム、ブチルゴム等の弾性体が挙げられる。また、特に耐薬品性を要求される場合には、及び前記弾性体にフッ素樹脂であるＦＥＰやＰＦＡ、ＰＴＦＥを被覆した材質が挙げられる。 Hereinafter, the seal structure for piping of the present invention will be described in more detail.
In the present invention, examples of the material of the O-ring include elastic bodies such as nitrile rubber, styrene butadiene rubber, silicone rubber, fluorine rubber, ethylene propylene rubber, and butyl rubber. In particular, when chemical resistance is required, and a material in which the elastic body is coated with FEP, PFA, or PTFE which is a fluororesin.

本発明において、配管の材質としては、樹脂、金属、ゴムのいずれかが挙げられる。樹脂としては、例えば四ふっ化エチレンパーフルオロアルキルビニルエーテル共重合樹脂、四ふっ化エチレン樹脂、四ふっ化エチレン−六ふっ化プロピレン共重合樹脂、四ふっ化エチレン−エチレン共重合樹脂、ふっ化ビニリデン樹脂等のふっ素樹脂、あるいは架橋ポリエチレン樹脂、ポリエステルポリ塩化ビニール樹脂、アセタール樹脂アクリル樹脂、ポリエーテルエーテルケトン、ポリエーテルサルフォン、ポリエチレンテレフタレート、ポリフェニレンサルファイドが挙げられる。金属としては、例えばステンレス鋼，銅，銅合金，アルミニウム，アルミニウム合金、チタン、チタン合金が挙げられる。ゴムとしては、例えばシリコーンゴム、フッ素ゴム、イソプレンゴム、ブタジエンゴム、クロロプレンゴム、ブチルゴム、アクリルニトリルゴム、エチレンプロピレンゴム、アクリルゴム、ウレタンゴムが挙げられる。   In the present invention, examples of the material of the pipe include resin, metal, and rubber. Examples of the resin include a tetrafluoroethylene perfluoroalkyl vinyl ether copolymer resin, a tetrafluoroethylene resin, a tetrafluoroethylene-hexafluoropropylene copolymer resin, a tetrafluoroethylene-ethylene copolymer resin, and a vinylidene fluoride resin. And the like, or a crosslinked polyethylene resin, a polyester polyvinyl chloride resin, an acetal resin acrylic resin, polyether ether ketone, polyether sulfone, polyethylene terephthalate, and polyphenylene sulfide. Examples of the metal include stainless steel, copper, copper alloy, aluminum, aluminum alloy, titanium, and titanium alloy. Examples of the rubber include silicone rubber, fluorine rubber, isoprene rubber, butadiene rubber, chloroprene rubber, butyl rubber, acrylonitrile rubber, ethylene propylene rubber, acrylic rubber, and urethane rubber.

次に、本発明の配管のシール構造体について説明する。なお、本実施例は下記に述べることに限定されない。
（実施例）
図１、図２及び図３を参照する。ここで、図１は、ガス管を被装着部材である電磁弁の継手部に装着した状態の配管のシール構造体の説明図である。図２は、図１の配管のシール構造体の一構成であるクランパーと配管との関係を示す概略的な斜視図である。図３は、ガス管を電磁弁の継手部に装着する前の状態を示す説明図である。 Next, the seal structure for piping according to the present invention will be described. In addition, a present Example is not limited to what is described below.
(Example)
Please refer to FIG. 1, FIG. 2 and FIG. Here, FIG. 1 is an explanatory diagram of a pipe seal structure in a state where a gas pipe is attached to a joint portion of an electromagnetic valve which is a member to be attached. FIG. 2 is a schematic perspective view showing a relationship between a clamper and a pipe, which is one configuration of the pipe seal structure of FIG. 1. FIG. 3 is an explanatory view showing a state before the gas pipe is attached to the joint portion of the electromagnetic valve.

図１中の符番１は流体を流す配管としてのフッ素樹脂製のガス管であり、一端側にリング状の第１の鍔部１ａが形成されている。ここで、第１の鍔部１ａは例えば圧縮成形により形成できるが、その形成方法は問わない。ガス管１の第１の鍔部１ａ側は、電磁弁２の開口部（継手部）３に挿着されている。ここで、第１の鍔部１ａの外径ｄは、継手部３の内径Ｄより約０．２ｍｍ小さく設定されている（図３参照）。電磁弁２の継手部３の周辺には、外側方向に延出するリング状の第２の鍔部２ａが形成されている。   Reference numeral 1 in FIG. 1 is a fluororesin gas pipe as a pipe for flowing a fluid, and a ring-shaped first flange 1a is formed on one end side. Here, although the 1st collar part 1a can be formed, for example by compression molding, the formation method is not ask | required. The first flange 1 a side of the gas pipe 1 is inserted into the opening (joint portion) 3 of the electromagnetic valve 2. Here, the outer diameter d of the first flange portion 1a is set to be smaller by about 0.2 mm than the inner diameter D of the joint portion 3 (see FIG. 3). Around the joint portion 3 of the solenoid valve 2, a ring-shaped second flange portion 2a extending outward is formed.

ガス管１の外周部には、ガス管１の第１の鍔部１ａを電磁弁２側に押圧するようにニトリルゴムからなるＯリング４が設けられている。ガス管１の外周部には、Ｏリング４をガス管１の第１のつば部１ａ側に押圧するように金属製の筒状の締結具５が配置されている。この締結具５のＯリング４とは反対側の端部に、外径が第２の鍔部２ａと略同形状の第３の鍔部５ａが形成されている。   An O-ring 4 made of nitrile rubber is provided on the outer periphery of the gas pipe 1 so as to press the first flange 1a of the gas pipe 1 toward the electromagnetic valve 2 side. A metal cylindrical fastener 5 is disposed on the outer peripheral portion of the gas pipe 1 so as to press the O-ring 4 toward the first collar portion 1 a of the gas pipe 1. A third flange 5a having an outer diameter substantially the same as that of the second flange 2a is formed at the end of the fastener 5 opposite to the O-ring 4.

ガス管１の外周部には、電磁弁２の第２の鍔部２ａ及び締結具５の第３の鍔部５ａを固定するように金属製のクランパー６が設けられている。クランパー６は、図２に示すように、第２の鍔部２ａ及び第３の鍔部５ａの夫々の一部が嵌め込まれる開口部６ａを有している。クランパー６の先端は末広がりの形状でかつ板バネのような機能を有しており、配管１にセットする際には先端が次第に広がり、配管１にセットされて第２の鍔部２ａ及び第３の鍔部５ａの夫々の一部が開口部６ａに装着された後は先端が自然に狭まるようになっている。   A metal clamper 6 is provided on the outer periphery of the gas pipe 1 so as to fix the second flange 2 a of the electromagnetic valve 2 and the third flange 5 a of the fastener 5. As shown in FIG. 2, the clamper 6 has an opening 6a into which a part of each of the second flange portion 2a and the third flange portion 5a is fitted. The tip of the clamper 6 has a divergent shape and functions as a leaf spring. When the clamper 6 is set on the pipe 1, the tip gradually spreads and is set on the pipe 1 so that the second flange 2 a and the third After a part of each of the flange portions 5a is attached to the opening 6a, the tip is naturally narrowed.

配管１と電磁弁２との装着前の状態は、図３に示すようにＯリング４が圧縮されずに断面形状が円形を保った形状になっている。図３の状態から矢印Ｘのように配管１が電磁弁２の継手部３に装着されると、Ｏリング４が図１に示すように圧縮されて、配管１の外周部と電磁弁２と締結具５間の領域に納まるようになっている。なお、図３において、配管１の第１の鍔部１ａの端面から締結具５の第３の鍔部５ａの内側の端面までの距離をＬ１、電磁弁２の開口部３の深さ方向の距離をＬ２とした場合、Ｏリング４に約８〜３０％の圧縮を与えるようにＬ２の長さはＬ１より短く設定している。なお、図３中の符番７，８は夫々継手部３のシール面である。
なお、Ｏリング４や締結具５は、通常、ガス管１の第１の鍔部１ａを成形等により形成する前にガス管１に挿着しておくが、必ずしもこれに限定されない。 The state before mounting of the pipe 1 and the electromagnetic valve 2 is such that the O-ring 4 is not compressed and the cross-sectional shape is maintained circular as shown in FIG. When the pipe 1 is attached to the joint portion 3 of the electromagnetic valve 2 from the state of FIG. 3 as indicated by an arrow X, the O-ring 4 is compressed as shown in FIG. It fits in the area between the fasteners 5. In FIG. 3, the distance from the end surface of the first flange portion 1 a of the pipe 1 to the inner end surface of the third flange portion 5 a of the fastener 5 is L 1 , and the depth direction of the opening portion 3 of the electromagnetic valve 2. If the distance was set to L 2, the length of L 2 to give the O-ring 4 to about 8% and 30% of compression is set to be shorter than L 1. In addition, the numbers 7 and 8 in FIG. 3 are the sealing surfaces of the joint part 3, respectively.
The O-ring 4 and the fastener 5 are usually inserted into the gas pipe 1 before forming the first flange 1a of the gas pipe 1 by molding or the like, but are not necessarily limited thereto.

上記実施例に係る配管のシール構造体は、ガス管１の一端側にリング状の第１の鍔部１ａが設けられ、電磁弁２の継手部周辺にリング状の第２の鍔部２ａが設けられ、第１の鍔部１ａを電磁弁２に押圧するようにＯリング４がガス管１の外周部に設けられ、外径が前記第２の鍔部２ａに対応したリング状の第３の鍔部５ａを有した筒状の締結具５が、Ｏリング４を第１の鍔部側に押圧するようにガス管１の外周部に設けられ、更に第２・第３の鍔部２ａ，５ａを固定するようにクランパー６がガス管１の外周部に設けられた構成になっている。   In the pipe seal structure according to the above embodiment, a ring-shaped first flange 1a is provided on one end side of the gas pipe 1, and a ring-shaped second flange 2a is provided around the joint of the solenoid valve 2. An O-ring 4 is provided on the outer peripheral portion of the gas pipe 1 so as to press the first flange 1a against the electromagnetic valve 2, and an outer diameter of the ring-shaped third corresponding to the second flange 2a. A cylindrical fastener 5 having a flange portion 5a is provided on the outer peripheral portion of the gas pipe 1 so as to press the O-ring 4 toward the first flange portion, and further the second and third flange portions 2a. , 5a is provided with a clamper 6 provided on the outer periphery of the gas pipe 1.

こうした構成において、ガス管１の第１の鍔部１ａでは、クランパー６の押圧が締結具５を介してＯリング４に伝達されて電磁弁２のシール面７及び第１の鍔部１ａが電磁弁２のシール面８の夫々に接触が均一に行われ、その結果、配管１と電磁弁２とのシール性を高めることができる。   In such a configuration, in the first flange 1 a of the gas pipe 1, the pressure of the clamper 6 is transmitted to the O-ring 4 via the fastener 5, and the seal surface 7 of the electromagnetic valve 2 and the first flange 1 a are electromagnetic. Contact is made uniformly to each of the sealing surfaces 8 of the valve 2, and as a result, the sealing performance between the pipe 1 and the electromagnetic valve 2 can be improved.

また、次のような効果も有する。
１）クランパー６はワンタッチでガス管１に装着して第２の鍔部２ａ及び第３の鍔部５ａを固定でき、かつワンタッチでガス管１から外すことができるので、作業時間を短縮することができる。
２）ガス管１の一端部の第１の鍔部１ａは、シール面８の全面に接圧するので、シール性を高めることができる。 Moreover, it also has the following effects.
1) The clamper 6 can be attached to the gas pipe 1 with a single touch to fix the second flange 3a and the third flange 5a, and can be detached from the gas pipe 1 with a single touch. Can do.
2) Since the first flange 1a at one end of the gas pipe 1 is in contact with the entire surface of the seal surface 8, the sealing performance can be improved.

下記表１は、上記ガス管の材質，寸法，Ｏリング規格，材質及びクランパーの商品名を示す。下記表２は、ガス管がＰＴＦＥ管“タイプＡ”のエアー漏れの有無の実施結果を示す。下記表３，４は、ガス管が架橋ポリエチレン管“タイプＢ”のエアー漏れの有無の実施結果を示す。

Figure 2009216196
Table 1 below shows the material, dimensions, O-ring standard, material, and clamper product name of the gas pipe. Table 2 below shows the results of the presence or absence of air leakage when the gas pipe is a PTFE pipe “type A”. Tables 3 and 4 below show the results of the presence or absence of air leakage when the gas pipe is a crosslinked polyethylene pipe “type B”.
Figure 2009216196

Figure 2009216196
Figure 2009216196

Figure 2009216196
Figure 2009216196

Figure 2009216196
Figure 2009216196

下記表５は、ガス管がＰＶＤＦ管“タイプＣ”のエアー漏れの有無の実施結果を示す。下記表６は、“タイプＢ”の鍔部のフレアー加工品をエアー圧６ｋｇ／ｃｍ２Ｇ加圧下の状態で引き抜き強度の実施結果を示す。下記表７は、“タイプＢ”の鍔部の接着加工品をエアー圧６ｋｇ／ｃｍ２Ｇ加圧下の状態で引き抜き強度の実施結果を示す。表８は、“タイプＢ”の鍔部の融着加工品の引き抜き強度試験の実施結果を示す。

Figure 2009216196
Table 5 below shows the results of the presence or absence of air leakage when the gas pipe is a PVDF pipe “type C”. Table 6 below shows the results of the pulling strength of the flared product of the heel part of “Type B” under an air pressure of 6 kg / cm 2 G. Table 7 below shows the results of the pulling strength of the “Type B” buttock-bonded product under an air pressure of 6 kg / cm 2 G. Table 8 shows the results of the pull-out strength test of the fusion-bonded product of the “Type B” collar.
Figure 2009216196

Figure 2009216196
Figure 2009216196

Figure 2009216196
Figure 2009216196

Figure 2009216196
Figure 2009216196

なお、本発明は、上記実施形態そのままに限定されるものではなく、実施段階ではその要旨を逸脱しない範囲で構成要素を変形して具体化できる。また、上記実施形態に開示されている複数の構成要素の適宜な組み合せにより種々の発明を形成できる。例えば、実施形態に示される全構成要素から幾つかの構成要素を削除してもよい。更に、異なる実施形態に亘る構成要素を適宜組み合せてもよい。具体的には、上記例では、締結具の第３の鍔部の径が被挿着部材の第２の鍔部の径と略同形状である場合について述べたが、これに限らず、締結具に第３の鍔部が無い筒状体である場合でもよい。また、締結具は、例えば図４に示すように、配管の外周部に取り付けられる環状のリング部材９ａと配管の外周部に取り付けられる筒状の部材９ｂからなる場合でもよい。   Note that the present invention is not limited to the above-described embodiment as it is, and can be embodied by modifying the constituent elements without departing from the scope of the invention in the implementation stage. Further, various inventions can be formed by appropriately combining a plurality of constituent elements disclosed in the embodiment. For example, some components may be deleted from all the components shown in the embodiment. Furthermore, you may combine suitably the component covering different embodiment. Specifically, in the above example, the case where the diameter of the third flange portion of the fastener is substantially the same as the diameter of the second flange portion of the member to be inserted is not limited to this. The tool may be a cylindrical body without the third flange. Further, for example, as shown in FIG. 4, the fastener may include an annular ring member 9 a attached to the outer peripheral portion of the pipe and a cylindrical member 9 b attached to the outer peripheral portion of the pipe.

図１は、ガス管を被装着部材である電磁弁の継手部に装着した状態のシール構造体の説明図。FIG. 1 is an explanatory diagram of a seal structure in a state in which a gas pipe is mounted on a joint portion of a solenoid valve that is a mounted member. 図２は、図１のシール構造体の一構成であるクランパーと配管との関係を示す説明図。FIG. 2 is an explanatory view showing a relationship between a clamper and a pipe, which is one configuration of the seal structure of FIG. 1. 図３は、配管は電磁弁の継手部に装着する前の状態を示す説明図。FIG. 3 is an explanatory view showing a state before the piping is attached to the joint portion of the solenoid valve. 図４は、図１のシール構造体の一構成である締結具の変形例を示す断面図。FIG. 4 is a cross-sectional view showing a modification of the fastener that is one configuration of the seal structure of FIG. 1.

符号の説明Explanation of symbols

１…ガス管（配管）、１ａ…第１の鍔部、２…被挿着部材、２ａ…第２の鍔部、３…開口部（継手部）、４…Ｏ−リング、５，９…締結具、５ａ…第３の鍔部、６…固定具、７，８…シール面。   DESCRIPTION OF SYMBOLS 1 ... Gas pipe (pipe), 1a ... 1st collar part, 2 ... Insertion member, 2a ... 2nd collar part, 3 ... Opening part (joint part), 4 ... O-ring, 5, 9 ... Fasteners, 5a ... third collar, 6 ... fixture, 7, 8 ... sealing surface.

Claims (3)

流体を流す配管の一端側と被挿着部材とを該被挿着部材の継手部でシールする配管のシール構造体であり、
前記配管の一端側にはリング状の第１の鍔部が設けられ、
前記被挿着部材の継手部周辺には、外側方向に延出するリング状の第２の鍔部が設けられ、
前記被挿着部材の継手部に前記配管の第１の鍔部側が挿着された状態で、第１の鍔部を被挿着部材に押圧するようにＯリングが配管の外周部に設けられ、
前記被挿着部材の継手部に前記配管の第１の鍔部側が挿着された状態で、筒状の締結具が前記Ｏリングを第１の鍔部側に押圧するように配管の外周部に設けられ、
前記被挿着部材の継手部に前記配管の第１の鍔部側が挿着された状態で、前記第２の鍔部を固定するように固定具が配管の外周部に設けられていることを特徴とする配管のシール構造体。 A seal structure for piping that seals one end side of a pipe through which a fluid flows and an insertion member with a joint portion of the insertion member,
A ring-shaped first flange is provided on one end side of the pipe,
Around the joint portion of the member to be inserted, a ring-shaped second collar portion extending in the outer direction is provided,
An O-ring is provided on the outer periphery of the pipe so as to press the first flange against the member to be inserted while the first flange side of the pipe is inserted into the joint of the member to be inserted. ,
The outer peripheral portion of the pipe so that the tubular fastener presses the O-ring toward the first flange side in a state where the first flange side of the pipe is inserted into the joint portion of the inserted member. Provided in
In a state where the first flange portion side of the pipe is inserted into the joint portion of the inserted member, a fixture is provided on the outer peripheral portion of the pipe so as to fix the second flange portion. Characteristic piping seal structure. 前記Ｏリングの材質は、ニトリルゴム、スチレンブタジエンゴム、シリコーンゴム、フッ素ゴム、エチレンプロピレンゴム、ブチルゴム、及び前記ゴムにフッ素樹脂を被覆した材質の内いずれかであることを特徴とする請求項１記載の配管のシール構造体。 2. The material of the O-ring is any one of nitrile rubber, styrene butadiene rubber, silicone rubber, fluorine rubber, ethylene propylene rubber, butyl rubber, and a material obtained by coating the rubber with a fluorine resin. Seal structure for piping as described. 前記配管の材質は、樹脂、金属、ゴムのいずれかであることを特徴とする請求項１記載の配管のシール構造体。 2. The pipe seal structure according to claim 1, wherein the pipe is made of resin, metal, or rubber.
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WO2022003894A1 (en) * 2020-07-02 2022-01-06 株式会社サンギ Seal device

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Publication number Priority date Publication date Assignee Title
CN110772409A (en) * 2017-12-29 2020-02-11 首都医科大学宣武医院 Air valve joint of air bag
CN110772409B (en) * 2017-12-29 2021-11-02 首都医科大学宣武医院 Air valve joint of air bag
WO2022003894A1 (en) * 2020-07-02 2022-01-06 株式会社サンギ Seal device

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