JPS5947578A - One-way valve device - Google Patents
One-way valve deviceInfo
- Publication number
- JPS5947578A JPS5947578A JP15761582A JP15761582A JPS5947578A JP S5947578 A JPS5947578 A JP S5947578A JP 15761582 A JP15761582 A JP 15761582A JP 15761582 A JP15761582 A JP 15761582A JP S5947578 A JPS5947578 A JP S5947578A
- Authority
- JP
- Japan
- Prior art keywords
- valve
- valve device
- coil spring
- pressure
- fluid
- 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
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K15/00—Check valves
- F16K15/14—Check valves with flexible valve members
- F16K15/144—Check valves with flexible valve members the closure elements being fixed along all or a part of their periphery
- F16K15/145—Check valves with flexible valve members the closure elements being fixed along all or a part of their periphery the closure elements being shaped as a solids of revolution, e.g. cylindrical or conical
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/32—Details
- F16K1/34—Cutting-off parts, e.g. valve members, seats
- F16K1/36—Valve members
- F16K1/40—Valve members of helical shape
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Check Valves (AREA)
Abstract
Description
【発明の詳細な説明】
産業上の利用分野
本発明は、冷凍サイクルの逆止弁などのように一方向へ
の流体の流れを許容する一方向弁装置に関するものであ
る。DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a one-way valve device that allows fluid to flow in one direction, such as a check valve for a refrigeration cycle.
従来例の構成とその問題点
第１図は従来より冷凍装置に用いられている安全弁で、
矢印Ａ側から矢印Ｂの方向に圧力が作用するものである
。Conventional configuration and its problems Figure 1 shows a safety valve conventionally used in refrigeration equipment.
Pressure is applied from the arrow A side to the arrow B direction.
しかも、冷凍装置では通常の運転中にいささかの冷媒漏
洩も許されないために弁構造が複雑であム例えば、弁座
ａの面は表面精度、平担度が小さいことが要求され、弁
体弁座すは軟質の密封性の良好な材料を使用することが
要求され、捷だ弁体弁座すが弁座ａに確実に当接するた
めに弁体Ｃが弁本体ｄの内径面ｅに摺動自在に嵌合され
ている。Moreover, since refrigeration equipment does not allow any refrigerant leakage during normal operation, the valve structure is complicated.For example, the surface of the valve seat a is required to have low surface precision and flatness, The seat is required to be made of a soft material with good sealing properties, and the valve body C must slide against the inner diameter surface e of the valve body d in order to ensure that the valve seat abuts the valve seat a. They are movably fitted.
なおｆは弁体Ｃを弁体弁座すへ圧接するためのばねであ
る。Note that f is a spring for pressing the valve body C into pressure contact with the valve seat of the valve body.
したがって、かかる構造の安全弁は部品数が多く極めて
高価につくという欠点を有していた。Therefore, the safety valve having such a structure has the drawback that it requires a large number of parts and is extremely expensive.
また第２図は冷凍装置を構成する圧縮機の内部の吐出側
に取りつけられて、吐出圧力が一定の限度を越したとき
低圧側に向って開放状態になることにより矢印Ａ、Ｂで
示すように冷媒を流し、吐出圧力の過昇を防止する圧力
制限装置を示す。In addition, Fig. 2 shows a compressor that is installed on the discharge side inside the compressor that constitutes the refrigeration system, and when the discharge pressure exceeds a certain limit, it opens toward the low pressure side, as shown by arrows A and B. This shows a pressure limiting device that allows refrigerant to flow through the pump and prevents the discharge pressure from rising excessively.
かかる構造からなる圧力制限装置ｄは、その作動がひん
ばんであると弁座すの損耗の心配がありまた弁体Ｃの振
動による騒音が問題となる。なおｆは弁体Ｃの付勢ばね
である。If the pressure limiting device d having such a structure is operated frequently, there is a risk of wear and tear on the valve seat, and noise caused by vibration of the valve body C becomes a problem. Note that f is a biasing spring for the valve body C.
次に、その振動が扼生ずる理由について第３図により説
明する。Next, the reason why the vibration is generated will be explained with reference to FIG.
同図において、高圧側の圧力ＰＡがある値ｐａ１で、開
放側の圧力ＰＢがある値ｐｂ１のとき、弁体Ｃが圧力に
よって受ける力をＦＰとし、弁座すの有効径をＤＢとす
ると、弁体Ｃが圧力によって受ける力ＦＰは、
となる。In the figure, when the pressure PA on the high pressure side is a certain value pa1 and the pressure PB on the open side is a certain value pb1, let FP be the force that the valve body C receives due to the pressure, and let DB be the effective diameter of the valve seat. The force FP that the valve body C receives due to pressure is as follows.
ところが、この構造は、付勢ばねｆによって弁体Ｃが弁
座すに押しつけられる力をＦＢとすればこの押しつけ力
Ｆ３よりも弁体Ｃが受ける圧力Ｆ２Ｏ方が大きくなった
とき、弁体Ｃは弁座すを離れる。ところが、離れた時、
弁体Ｃの弁座側の表面の圧力は高圧側の圧力ｐａ１より
も低下して開放側の圧力ｐｂ１に近すき、弁体Ｃが元に
戻ろうとする。However, in this structure, if the force with which the valve body C is pressed against the valve seat by the biasing spring f is FB, then when the pressure F2O that the valve body C receives becomes greater than this pressing force F3, the valve body C leaves Benzasu. However, when I left,
The pressure on the valve seat side surface of the valve body C becomes lower than the pressure pa1 on the high pressure side and approaches the pressure pb1 on the opening side, and the valve body C tries to return to its original state.
かくして、弁体Ｃは振動をおこすことがある。Thus, the valve body C may vibrate.
さらに、第４図は各種の流体回路に使用される逆止弁を
示すもので、その弁体Ｃの弁体弁座面ｑは図中の矢印Ａ
、Ｂとは逆の方向に圧力が掛ったとき弁座すに当接して
逆止作用をなす構造である。Furthermore, FIG. 4 shows a check valve used in various fluid circuits, and the valve seat surface q of the valve body C is indicated by the arrow A in the figure.
, B has a structure that when pressure is applied in the opposite direction, it comes into contact with the valve seat and acts as a check.
この構造は、ひんばんな作動や圧力振動によって弁体Ｃ
が摩耗したり弁体Ｃの移動にともなって動作音を発生す
ることがあり、信頼性に欠ける欠点を有していた。This structure prevents the valve body C from being damaged due to frequent operation or pressure vibration.
The valve body C may wear out or generate operating noise as the valve body C moves, resulting in a lack of reliability.
また弁座すおよび弁体Ｃの弁体弁座面ｑは流体の漏洩を
防ぐために極めて高い精度で加工をする必要があり、こ
れは生産の面およびコストの点から不利であった。Further, the valve seat and the valve seat surface q of the valve body C must be machined with extremely high precision in order to prevent fluid leakage, which is disadvantageous in terms of production and cost.
さらに、上記第１図〜第４図に示す弁装置は、弁体と弁
座の密着によって流体の流れを制御するため、弁座口の
太きさも限られ、流体の流通抵抗が大きくなり、また別
体からなる弁体が可動するため、故障の確率が高い欠点
を有してい／ζ。、発明の技術的課題
本発明は、上記従来の弁装置にみられる欠点を除去する
もので、別体からなる可動部品をなくして故障の少ない
弁装置を得ることを目的とするものである。Furthermore, since the valve devices shown in FIGS. 1 to 4 above control the flow of fluid through close contact between the valve body and the valve seat, the width of the valve seat opening is also limited, which increases fluid flow resistance. In addition, since the valve body is a separate body and moves, it has the disadvantage of a high probability of failure. TECHNICAL PROBLEM TO BE SOLVED BY THE INVENTION The present invention eliminates the drawbacks seen in the conventional valve devices as described above, and aims to provide a valve device with fewer failures by eliminating separate moving parts.
発明の技術的手段
この目的を達成するために本発明は、流体入口および流
体出口を有する弁装置本体に、各素線間隔が密着したコ
イルばねを設け、このコイルばねの一端を密封し、さら
に前記コイルばねの開口他端を前記流体入口に連結した
ものである。Technical Means of the Invention In order to achieve this object, the present invention provides a valve device main body having a fluid inlet and a fluid outlet with a coil spring in which each strand is closely spaced, one end of the coil spring is sealed, and The other open end of the coil spring is connected to the fluid inlet.
発明の作用
この構成によって、別体からなる可動部品をなくして故
障率の低減化をはかり、また可動部品の移動にともなう
騒音、振動および弁体の摩耗の促進をそれぞれ防止して
、静かでかつ長寿命化をはかることができるものである
。Effect of the Invention With this configuration, the failure rate is reduced by eliminating separate moving parts, and noise and vibration caused by the movement of moving parts and acceleration of wear of the valve body are prevented, resulting in a quiet and This makes it possible to extend the lifespan.
実施例の説明
以下、本発明の実施例を添付図面の第６図〜第１０図に
より説明する。DESCRIPTION OF EMBODIMENTS Hereinafter, embodiments of the present invention will be described with reference to FIGS. 6 to 10 of the accompanying drawings.
まず、第５図により本発明の基本構成について説明する
。First, the basic configuration of the present invention will be explained with reference to FIG.
同図において、１は両端に流体の入口２と出口３を有′
する円筒状の弁装置本体で、その内部には小径円筒部４
およびこの小径円筒部４を弁装置本体１の内部に取付け
るフランジ部５からなる弁体取付は部６が設けられて１
八る。７は素線間隔が密着したコイルばねで、両端が開
口されており、その一端には、金属あるいは硬質ゴム、
合成樹脂材などからなる密封栓８が、爆接あるいは接着
などの適宜手段にて取付けられている。このコイルはね
７の他端は、前記小径円筒部４に嵌合し、洩れのないよ
う熔接されている。In the figure, 1 has a fluid inlet 2 and an outlet 3 at both ends.
It is a cylindrical valve device body with a small diameter cylindrical part 4 inside.
The valve body mounting is made up of a flange portion 5 for attaching this small diameter cylindrical portion 4 inside the valve device main body 1, and a portion 6 is provided to 1
Eight. 7 is a coil spring with closely spaced wires, both ends of which are open, and one end of which has metal or hard rubber,
A sealing plug 8 made of synthetic resin or the like is attached by appropriate means such as explosion welding or adhesive. The other end of this coil spring 7 is fitted into the small diameter cylindrical portion 4 and welded to prevent leakage.
上記構成において、コイルばね７が弁動作を行う点につ
いて説明する。ここで流体は同図の矢印Ａ、Ｂで示すよ
うに入口２から出口３へ流れるものである。In the above configuration, the point that the coil spring 7 performs the valve operation will be explained. Here, the fluid flows from the inlet 2 to the outlet 3 as shown by arrows A and B in the figure.
今、入口２側に高圧がかかり、出口３側へ流体を送出す
よう動作することを考えると、コイルばね７を伸長さぜ
ようとする力すなわち高圧側と低圧側の圧力差によって
生じるばねの引張力をＦ。Now, considering that high pressure is applied to the inlet 2 side and the fluid is sent to the outlet 3 side, the force that tries to extend the coil spring 7, that is, the spring force generated by the pressure difference between the high pressure side and the low pressure side. The tensile force is F.
コイルばね７の巻径をＤｓ、入口３（高圧）側の圧力を
ＰＡ１出口４（低圧）側の圧力をＰＢ、コイルばね７の
各素線の密着が離れるときのばね伸張力をＦｏ１コイル
ばね７の各素線が離れるときの圧力差を（ｐ ａＯ−１
’ｂｏ ）、コイルばね７のばね常数をＫｓｌばね巻数
をＮ、ばねの素線間隔隙間を會とすれば、ばねの引張力
Ｆおよび伸長力Ｆ○は、式で表わされる。そして（ＰＡ
ＰＢ） （ｐａＯｐｂ□）〉０の条件において、ば
ねの素線間隔隙間ｔは、・・・・・・（３）
式で表わ芒れる。そして（ＰＡ−ＰＢ）−（ｐａＯ−ｐ
ｂｏ）≦０の条件において
ｔ＝Ｑ ・・・・・・（４
）となる。The winding diameter of the coil spring 7 is Ds, the pressure on the inlet 3 (high pressure) side is PA1, the pressure on the outlet 4 (low pressure) side is PB, and the spring extension force when each wire of the coil spring 7 comes out of close contact is Fo1. The pressure difference when each wire of 7 separates is (p aO-1
'bo), the spring constant of the coil spring 7 is Ksl, the number of turns of the spring is N, and the gap between the strands of the spring is .Then, the tensile force F and the stretching force F○ of the spring are expressed by the following equations. And (PA
Under the condition of PB) (paOpb□)〉0, the spring wire interval gap t is expressed by the formula (3). and (PA-PB)-(paO-p
bo)≦0, t=Q (4
).
実施例の効果
本弁装置は、（ＰＡ−ＰＢ）≦（、Ｐａｏ−ｐｂｏ）の
条件において閉状態、（ＰＡ−Ｊ’１３ ）＞ （ｐａ
ｏ−ｐ））Ｏ沖条件において閉状態となる。Effects of Example The present valve device is in a closed state under the conditions of (PA-PB)≦(,Pao-pbo), and (PA-J'13)>(pa
o-p)) It becomes a closed state under O offshore conditions.
また本弁装置において従来の弁装置の口径ＤＮによる面
積π・ＤＮ２／４に相当するばねの線間隙間面積ＦＡは
ＦＡ−πｅｔ−Ｎ＠ＤＮ（に）
となるので、本弁装置は小形にして大きな口径を得るこ
とができる。In addition, in this valve device, the spring line gap area FA, which corresponds to the area π・DN2/4 due to the diameter DN of the conventional valve device, is FA-πet-N@DN (to), so the present valve device can be made small. A large diameter can be obtained.
また本弁装置は上記（鴻式から明らかなように圧力差（
ＰＡ−ＰＢ）の変化に比例してばねの素線間隔隙間ｔが
変化するから、かかる振動は発生し得ない。さらに従来
の弁装置は弁座の加工が必要であるが、本弁装置はこれ
を必要としないので安価に製造できる。In addition, this valve device has a pressure difference (
Since the spring wire interval gap t changes in proportion to the change in PA-PB), such vibration cannot occur. Further, while conventional valve devices require processing of the valve seat, this valve device does not require this and can be manufactured at low cost.
さらに、別体からなる弁体（可動部品）が不要であるた
め、故障率の低減化がはかれ、長寿命化がはかれる。Furthermore, since a separate valve body (moving part) is not required, the failure rate is reduced and the service life is extended.
実施例の構成
次に、第６図により本発明の他の実施例について説明中
る。Configuration of Embodiment Next, another embodiment of the present invention will be explained with reference to FIG.
同図において、６１は流体が流れる流体管路、６２は前
記流体管路６１の側壁に設けられた弁装置本体で、一端
が流体管路６１の側壁を貫通し、て流路６３内に開口し
た円筒状の弁体取付は部６４と、各素線間隔が密着して
巻回されかつ後端が前記弁体取付は部６４に溶接によ−
て密封固定されコイルはね６５とより構成されている。In the figure, 61 is a fluid pipe through which fluid flows, and 62 is a valve device main body provided on the side wall of the fluid pipe 61, one end of which penetrates the side wall of the fluid pipe 61 and opens into the flow channel 63. The cylindrical valve body mounting part 64 is wound with each strand spaced closely, and the rear end is welded to the valve body mounting part 64.
The coil spring 65 is sealed and fixed.
前記コイルばね６５の先端は溶液剤などの密封材６６に
よって密封されている。The tip of the coil spring 65 is sealed with a sealant 66 such as a solution.
上記構成において、弁装置本体６２へは、矢印Ａから流
体管路６１の外部Ｂへ圧力がかかる。そしてその圧力が
異常であれば、先の実施例で説明したとおりコイルばね
６６の各素線間隔が開き、流体が外部Ｂへ漏出して流体
管路６１の破裂などが防止される。In the above configuration, pressure is applied to the valve device main body 62 from the arrow A to the outside B of the fluid conduit 61. If the pressure is abnormal, the intervals between the wires of the coil spring 66 are opened as described in the previous embodiment, and the fluid leaks to the outside B, thereby preventing the fluid conduit 61 from bursting.
実施例の効果
この弁装置は、容器、配管など１だおける内部の異常圧
力を開放して内部圧力を設定圧に保ったり、容器、配管
などの破裂を防止する圧力制限装置、安全弁あるいは冷
凍装置において高圧側から低圧側へ過圧力を放出する圧
力開放弁などの一方向弁装置として最適である。Effects of Examples This valve device is a pressure limiting device, a safety valve, or a refrigeration device that releases abnormal pressure inside a container, pipe, etc., maintains the internal pressure at a set pressure, and prevents the container, pipe, etc. from bursting. It is ideal as a one-way valve device such as a pressure release valve that releases overpressure from the high pressure side to the low pressure side.
実施例の構成
次に、第７図により本発明のさらに他の実施例について
説明する。Structure of Embodiment Next, another embodiment of the present invention will be described with reference to FIG.
同図に示す弁装置は、その構造が第５図に示す構造とほ
とんど同じであり、コメルばね７１を取付ける取付は部
７２の構造が相違する。この取付は部７２は、矢印Ａか
ら矢印Ｂへ流体を流す管路７３の一部に全周にわたって
凹部７４を形成し、この凹部７４に嵌合して環状の取付
は部７２の抜は止めを行い、その取付は部７２に、一端
が密封栓７６によって密封されたコイルばね７１を取付
けだものデある。この弁装置の組立て手順は、本説明に
限らず、弁装置を組立てた後、最後に抜止めのために管
路Ｔ３をかしめるなど、適宜行えるものである。The structure of the valve device shown in the same figure is almost the same as that shown in FIG. For this attachment part 72, a recess 74 is formed over the entire circumference in a part of the pipe 73 through which fluid flows from arrow A to arrow B, and the annular attachment part 72 is fitted into this recess 74 to prevent removal of the part 72. The coil spring 71 whose one end is sealed by a sealing plug 76 is attached to the portion 72. The procedure for assembling this valve device is not limited to this description, and can be performed as appropriate, such as caulking the pipe line T3 to prevent it from slipping out after assembling the valve device.
実施例の効果
この構成の場合は、第５図の構成に比較して流入口径り
が広く形成できる。またこの弁装置は、第６図に示す実
施例の用途以外に逆止弁として利用できる。Effects of the Embodiment With this configuration, the diameter of the inlet port can be made wider than in the configuration shown in FIG. Further, this valve device can be used as a check valve in addition to the application shown in the embodiment shown in FIG.
実施例の構成
次に、第８図により本発明のさらに他の実施例について
説明する。Structure of Embodiment Next, another embodiment of the present invention will be described with reference to FIG.
同口において、８１は流体人口８２、流体出口８３を有
する弁装置本体で、かしめ加工々どにより固定された弁
座８４を具備している。８６は一端が密封栓８６により
密封され、他端が前記弁座８４に固定されたコイルはね
て、その各素線間は密着して巻回されている。８７は前
記コイルはね８５の伸張を付勢する付勢装置で、各素線
間が密着せずに適宜保たれた付勢はね８８と、この付勢
ばね８８の両端に設けられた圧接金具８９，９０と、弁
装置本体８１の上端に設けられたねじ金具９１と、この
ねじ金具９１に螺合して付勢ばね８８のコイルばね８５
への付勢力を調整する圧力調整ねじ９２より構成されて
いる。前記ねじ金具９１と圧力調整ねじ９２の螺合構成
は、流体が漏出しないよう適宜構成されている。At the same port, 81 is a valve device main body having a fluid port 82 and a fluid outlet 83, and is equipped with a valve seat 84 fixed by caulking or the like. One end of the coil 86 is sealed by a sealing plug 86, and the other end is a coil fixed to the valve seat 84, and the wires thereof are tightly wound. Reference numeral 87 denotes a biasing device that biases the expansion of the coil spring 85, which includes a biasing spring 88 in which each element wire is properly maintained without being in close contact with each other, and a pressure contact provided at both ends of the biasing spring 88. The metal fittings 89 and 90, the screw metal fitting 91 provided at the upper end of the valve device main body 81, and the coil spring 85 of the biasing spring 88 that is screwed onto the screw metal fitting 91.
It is comprised of a pressure adjustment screw 92 that adjusts the biasing force to. The threaded structure of the screw fitting 91 and the pressure adjusting screw 92 is appropriately configured to prevent fluid from leaking.
実施例の効果
」二記構成において、流体人口８２側の圧力が、付勢ば
ね８８の付勢力以上に到達すればコイルばね８５は侵張
し、各素線間が開いて矢印Ａ、Ｂで示すように流体が流
体出口Ｂ ３ （１１１１へ流れ、流体入口８２側の圧
力が設定圧に保たれる。寸だその設定圧は、周知のよう
に、圧力調整ねじ９２を操作して付勢力を調節すること
により任意の値が得られる。Effects of the Embodiment In the configuration described in Section 2, when the pressure on the fluid population 82 side reaches the urging force of the urging spring 88 or more, the coil spring 85 expands, and the wires are opened, as indicated by arrows A and B. As shown, the fluid flows to the fluid outlet B 3 (1111), and the pressure on the fluid inlet 82 side is maintained at the set pressure. Any value can be obtained by adjusting .
この構成によっても上記実施例と同様故障が少なく、長
寿命化がはかれるなどの効果が得られるとともに、第１
図に示す従来の構造に比較して弁座面と弁体弁座面の不
整合による流体の漏れのおそれがなく、安価に製作でき
る。With this configuration as well, similar to the above embodiment, it is possible to obtain effects such as fewer failures and a longer life.
Compared to the conventional structure shown in the figure, there is no fear of fluid leakage due to misalignment between the valve seat surface and the valve seat surface of the valve body, and it can be manufactured at a low cost.
なお、上記各実施例において、流体の漏出は、コイルハ
ね７，６５，７１．８’５における各素線間の密着によ
り行うようにしたが、流体によっては各素線間の密着に
よっても漏出する場合がある。In each of the above embodiments, fluid leakage was caused by the close contact between the wires in the coil wings 7, 65, 71.8'5, but depending on the fluid, leakage may occur due to close contact between the wires. There are cases where
その場合は第９図、第１０図のように構成すれば、確実
な漏洩防止がはかれる。５
すなわち、第９図はコイ１ルばね７の素線の表面に軟質
ゴム、軟質樹脂材など、流体の質に応じた可撓性材料皮
膜９９を形成し、この相互の皮膜９９の密着により確実
にコイルばね７内を密封したものである。In that case, if the configuration is as shown in FIGS. 9 and 10, reliable leakage prevention can be achieved. 5 In other words, in FIG. 9, a flexible material film 99 such as soft rubber or soft resin material depending on the quality of the fluid is formed on the surface of the wire of the coil spring 7, and due to the close contact of the films 99 with each other, The inside of the coil spring 7 is reliably sealed.
また、第１０図はコイルばね７の各素線間に、軟′絢ゴ
ム、軟質樹脂材など流体の質に応じた可撓性材料からな
る密封材層１００を介在し、コイルばね７の各素線と密
封材層１００との密着によりコイルばね７内を密封した
ものである。In addition, FIG. 10 shows that a sealing material layer 100 made of a flexible material depending on the quality of the fluid, such as soft rubber or soft resin material, is interposed between each wire of the coil spring 7. The inside of the coil spring 7 is sealed by the close contact between the wire and the sealing material layer 100.
発明の効果
上記実施例より明らかなように、本発明の一方向弁装置
は、コイルばねの伸縮作用によって弁動作を行うため、
従来のような可動部品が不要となり、可動部品の移動に
ともなう騒音、振動および部品の摩耗が防止でき、静か
で長寿命の弁装置が得られるなど、種々の利点を有する
ものである。Effects of the Invention As is clear from the above embodiments, the one-way valve device of the present invention performs the valve operation by the expansion and contraction action of the coil spring.
It has various advantages, such as eliminating the need for moving parts as in the past, preventing noise, vibration and wear of parts due to the movement of moving parts, and providing a quiet and long-life valve device.
第１図は従来例を示す圧力調整弁の縦断面図、第２図は
従来例を示す安全弁の縦断面図、第３図は同安全弁の動
作説明図、第４図は従来例を示す逆止弁の縦断面図、第
５図は本発明の実施例における一方向弁装置の縦断面図
、第６Ｍは本発明の他の実施例を示す弁□装置の縦断面
図、第７図は本発明のさらに他の実施例を示す弁装置の
縦断面図、第８図は本発明のさらに他の実施例を示す弁
装置の縦断面図、第９図、第１０図はそれぞれ本発明の
弁装置におけるコイルばねの密封構造を示す要部断面図
である。
１・・・・・・弁装置本体、２・・・・・・入口、３・
・・・・・出口、７・・・・・・コイルばね、８・・・
・・・密封栓、６２・・・・・・弁装置本体、６６・・
・・・・コイルばね、６６・・・・・・密封材、７１・
・・・・・コイルばね、７３・・甲・管路、８１・・・
・・・弁装置本体、８２・・・・・・流体入口、８３・
・・・・・流体出口、８５・・・・・・・コイルばね、
８６・・・・・・密封栓。
代理人の氏名 弁理士 中 尾 敏 男 ほか１名第１
図
一０′Ｂ
′０′ハ
第３図
第４図
ゲ
６
第５図
第６図
６
第７図 第８図
第９図 第１０図Fig. 1 is a longitudinal sectional view of a pressure regulating valve showing a conventional example, Fig. 2 is a longitudinal sectional view of a safety valve showing a conventional example, Fig. 3 is an explanatory diagram of the operation of the safety valve, and Fig. 4 is a reverse sectional view showing a conventional example. 5 is a longitudinal sectional view of a one-way valve device according to an embodiment of the present invention, 6M is a longitudinal sectional view of a valve □ device showing another embodiment of the present invention, and FIG. 7 is a longitudinal sectional view of a stop valve. FIG. 8 is a vertical cross-sectional view of a valve device showing still another embodiment of the present invention, FIG. 9 and FIG. FIG. 2 is a sectional view of a main part showing a sealing structure of a coil spring in a valve device. 1...Valve device body, 2...Inlet, 3.
...Outlet, 7...Coil spring, 8...
... Sealing plug, 62 ... Valve device body, 66 ...
... Coil spring, 66 ... Sealing material, 71.
... Coil spring, 73 ... Instep pipe, 81 ...
... Valve device main body, 82 ... Fluid inlet, 83.
...Fluid outlet, 85...Coil spring,
86... Sealed stopper. Name of agent: Patent attorney Toshio Nakao and 1 other person No. 1
Figure 10'B '0'C Figure 3 Figure 4 Ge 6 Figure 5 Figure 6 Figure 6 Figure 7 Figure 8 Figure 9 Figure 10
Claims (1)
間隔が密着したコイルばねを設け、このコイルばねの一
端を密封し、さらに前記コイルばねの開口他端を前記流
体入口に連結した一方向弁装置。A unidirectional valve device main body having a fluid inlet and a fluid outlet is provided with a coil spring in which each strand is closely spaced, one end of the coil spring is sealed, and the other open end of the coil spring is connected to the fluid inlet. Valve device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15761582A JPS5947578A (en) | 1982-09-09 | 1982-09-09 | One-way valve device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15761582A JPS5947578A (en) | 1982-09-09 | 1982-09-09 | One-way valve device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5947578A true JPS5947578A (en) | 1984-03-17 |
Family
ID=15653595
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP15761582A Pending JPS5947578A (en) | 1982-09-09 | 1982-09-09 | One-way valve device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5947578A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2002016146A1 (en) * | 2000-08-23 | 2002-02-28 | H & M Gutberlet Gmbh | Pen-shaped applicator for applying liquid, particularly for an ink writing device or cosmetic applicator |
-
1982
- 1982-09-09 JP JP15761582A patent/JPS5947578A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2002016146A1 (en) * | 2000-08-23 | 2002-02-28 | H & M Gutberlet Gmbh | Pen-shaped applicator for applying liquid, particularly for an ink writing device or cosmetic applicator |
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