JP3368280B2 - Single shaft pressure reducing valve - Google Patents
Single shaft pressure reducing valveInfo
- Publication number
- JP3368280B2 JP3368280B2 JP02772898A JP2772898A JP3368280B2 JP 3368280 B2 JP3368280 B2 JP 3368280B2 JP 02772898 A JP02772898 A JP 02772898A JP 2772898 A JP2772898 A JP 2772898A JP 3368280 B2 JP3368280 B2 JP 3368280B2
- Authority
- JP
- Japan
- Prior art keywords
- valve
- seat surface
- seat
- pressure reducing
- cylindrical
- 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 - Fee Related
Links
Landscapes
- Safety Valves (AREA)
- Control Of Fluid Pressure (AREA)
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、一軸減圧弁につい
ての改良に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an improvement on a uniaxial pressure reducing valve.
【０００２】[0002]
【従来の技術】一軸減圧弁Ａは、通常、図１にあるよう
に、弁箱となるボディ１を、軸筒状に形成し、それの軸
方向の一端側には一次側ｗの配管に接続する接続口１０
を形成し、他端側には二次側ｙの配管に接続する接続口
１１を形成し、そのボディ１の内腔には、一次側ｗの接
続口１０に寄る位置の中心部位に、シート面２０を二次
側に向わせた円盤状の弁座２を、ボディ１に固定して装
設し、その弁座２より二次側ｙに寄る部位には、ボディ
１内腔を横切る隔壁状に形成したバネ受座３を嵌装し、
そのバネ受座３は、それの一次側ｗに向う端面３０と前
記弁座２のシート面２０との間に所定の間隔の流路ａを
形成する状態においてボディ１に対し固定し、かつ、こ
のバネ受座３には、それの中心部位に軸方向に透通する
嵌合穴３１を開設しておき、このバネ受座３より二次側
ｙに寄る部位におけるボディ１の内腔には、ピストン状
に嵌合するよう形成した感圧板４を軸方向に摺動自在に
嵌装して、前記バネ受座３との間に装設せるバネ５によ
り二次側ｙに向けて押出すよう付勢し、この感圧板４の
中心部位に、軸方向をボディ１の軸方向に沿わせた筒状
弁６を一体に連続させて装設し、それの一次側ｗに向う
先端側を前記バネ受座３の中心部位に開設した嵌合穴３
１に水密保持部材３２により水密に保持せしめて摺動自
在に嵌挿し、それの筒壁６ａの先端側の開口端縁に形設
した弁部６０を、前述の一次側ｗに寄る部位に装設せる
弁座２のシート面２０に進退自在に対向させることで構
成してある。2. Description of the Related Art In a uniaxial pressure reducing valve A, as shown in FIG. 1, a body 1 to be a valve box is usually formed in a cylindrical shape, and a pipe of a primary side w is provided at one axial end thereof. Connection port 10 to connect
And a connection port 11 for connecting to a pipe on the secondary side y is formed on the other end side, and the seat 1 is formed in the inner cavity of the body 1 at the central portion of the position close to the connection port 10 on the primary side w. A disc-shaped valve seat 2 having a surface 20 facing the secondary side is fixedly installed on the body 1, and a partition wall that crosses the inner cavity of the body 1 is provided at a portion closer to the secondary side y than the valve seat 2. Fit the spring seat 3 formed in the shape of
The spring seat 3 is fixed to the body 1 in a state where a flow path a having a predetermined gap is formed between the end surface 30 facing the primary side w thereof and the seat surface 20 of the valve seat 2, and A fitting hole 31 that penetrates in the axial direction is formed in the center portion of the spring seat 3, and the inner hole of the body 1 in the portion closer to the secondary side y than the spring seat 3 is formed. , A pressure-sensitive plate 4 formed so as to fit in a piston shape is slidably fitted in the axial direction, and pushed out toward the secondary side y by a spring 5 mounted between the pressure-sensitive plate 4 and the spring seat 3. The cylindrical valve 6 whose axial direction is along the axial direction of the body 1 is integrally and continuously installed at the central portion of the pressure-sensitive plate 4, and the tip side facing the primary side w thereof is installed. Fitting hole 3 opened at the center of the spring seat 3
1 is watertightly held by a watertight holding member 32 and slidably inserted therein, and a valve portion 60 formed at the open end edge of the cylindrical wall 6a thereof is attached to a portion near the primary side w. It is configured by facing the seat surface 20 of the valve seat 2 that can be installed so as to move back and forth.
【０００３】そして、バネ５に設定したバネ圧により感
圧板４を二次側ｙに押出す力Ｆと、感圧板４の受圧面Ｓ
と二次側ｙの圧力Ｐ２との積による感圧板４を一次側ｗ
に押し返す力との関係が、Ｆ＝Ｓ×Ｐ２ となることで
感圧板４が平衡した位置を占め、二次側ｙの圧力Ｐ２が
高くなると、それにより、感圧板４がバネ５を押し縮め
てそれのバネ力Ｆを増大させながら一次側ｗに動いて、
筒状弁６の先端の弁部６０を弁座２のシート面２０に近
づけ、それらの間に形成される流路ａを、図２にあるよ
うに狭めて、一次側ｗから二次側ｙに流れる流入量を制
御して、二次側ｙの圧力を一定に保持するようにしてあ
る。Then, the force F for pushing the pressure sensitive plate 4 to the secondary side y by the spring pressure set in the spring 5 and the pressure receiving surface S of the pressure sensitive plate 4.
And the pressure P2 on the secondary side y, the pressure sensitive plate 4 is moved to the primary side w
When the pressure-sensing plate 4 occupies a balanced position due to the relationship with the force that pushes back to, and the pressure P2 on the secondary side y increases, the pressure-sensing plate 4 compresses and compresses the spring 5. Move to the primary side w while increasing its spring force F,
The valve portion 60 at the tip of the tubular valve 6 is brought close to the seat surface 20 of the valve seat 2, and the flow path a formed between them is narrowed as shown in FIG. 2 to reduce the flow rate from the primary side w to the secondary side y. The pressure on the secondary side y is kept constant by controlling the amount of inflow flowing to the.
【０００４】[0004]
【発明が解決しようとする課題】上述の一軸減圧弁Ａ
は、一次側ｗの接続口１０を流入口として流入する水
の、二次側ｙへの流出口を、感圧板４の中心に筒状弁６
の上端の開放口として形成できることで、小型化が可能
となるメリットを持っているが、流水音が大きい欠点が
あり、使用場所が限られる問題がある。DISCLOSURE OF THE INVENTION Problems to be Solved by the Invention Uniaxial pressure reducing valve A described above
Is a cylindrical valve 6 at the center of the pressure-sensitive plate 4 with an outlet of water flowing in using the connection port 10 of the primary side w as an inlet, to the secondary side y.
Since it can be formed as an opening at the upper end of the, it has the advantage that it can be miniaturized, but it has the drawback that the sound of running water is large, and there is a problem that the place of use is limited.
【０００５】本発明は、従前の一軸減圧弁に生じている
この流水音が大きい欠点を解消せしめて、一軸減圧弁を
一般の減圧弁と同程度の流水音となるようにする新たな
手段を提供することを目的とする。The present invention eliminates the disadvantage that the flowing water noise is large in the conventional uniaxial pressure reducing valve, and provides a new means for making the uniaxial pressure reducing valve to have a flowing water sound comparable to a general pressure reducing valve. The purpose is to provide.
【０００６】[0006]
【課題を解決するための手段】そして、本発明において
は、上述の目的を達成するための手段として、ボディ１
に感圧板４の感圧作動により軸方向に動くよう組付けた
筒状弁６の筒壁６ａの先端縁に形成した弁部６０を、ボ
ディ１に固定装架せる弁座２の、シート面２０に対し軸
方向がそのシート面２０と直交する方向に沿い自在に進
退するよう対向させ、その弁部６０とシート面２０との
対向部位の周囲に、前記シート面２０に沿う流路ａを形
成する一軸減圧弁Ａにおいて、弁座２のシート面２０の
中心部位に、前記筒状弁６の内径よりも小径とした突起
体７を、それの周面が半球状・円錐状・截頭円錐形状・
横断面星形の円錐状をなす形状に形成して、シート面２
０から筒状弁６の内腔に向け突出してその突出端が開弁
時の筒状弁６の内腔に突入するように装設し、弁座２の
周囲を経てシート面２０に沿う流路ａ内に流入してシー
ト面２０の中心部の上方位置に集中してくる水流を、突
起体７の周面により整流させながらその突起体７の周面
によって筒状弁６の軸方向に方向変換させるようにした
ことを特徴とする一軸減圧弁。および、上述の一軸減圧
弁において、弁座２のシート面２０の中心部位に、前記
筒状弁６の内径よりも小径とした突起体７を、上面の中
心部に軸状部７５を設けそれの周面から放射状に突出す
る多数の仕切板７６を設けた水車状に形成して、シート
面２０から筒状弁６の内腔に向け突出するよう装設し、
弁座２の周面を経てシート面２０に沿う流路ａ内に流入
してシート面２０中心部の上方位置に集中してくる水流
を、それの流れ同志の衝突を避けながら筒状弁６の軸方
向に方向変換させるようにしたことを特徴とする一軸減
圧弁。および、上述の一軸減圧弁Ａにおいて、弁座２の
シート面２０の中心部位に、前記筒状弁６の内径よりも
小径とした突起体７を、底部が平盤状の盤体７３で上面
側に多数の針状体乃至小径の棒状体７４を林立するよう
植設した剣山状に形成して、シート面２０から筒状弁６
の内腔に向け突出するよう装設し、弁座２の周囲を経て
シート面２０に沿う流路ａ内に流入してシート面２０の
中心部の上方位置に集中してくる水流を、それの流れ同
志の衝突を弱めながら筒状弁６の軸方向に誘導するよう
にしたことを特徴とする一軸減圧弁。ならびに、上述の
一軸減圧弁Ａにおいて、弁座２のシート面２０の中心部
位に、前記筒状体６の内径よりも小径とした突起体７
を、内部を空調とした中空の截頭円錐形乃至コーン状に
形成し、それの周壁に内部に透過する多数の孔隙７７…
を設け、頂部に前記孔隙７７より大径の透孔７８を開設
して、シート面２０から筒状弁６の内腔に向け突出する
よう装設し、弁座２の周囲を経てシート面２０に沿う流
路ａ内に流入してシート面２０の中心部の上方位置に集
中してくる水流を、筒状弁６の軸方向に方向変換させる
よう整流しながら水流の一部を多数の孔隙７７を介して
突起体７内腔に導きその内腔において合流させて水流同
志の衝突を弱めるようにしたことを特徴とする一軸減圧
弁を提起するものである。In the present invention, the body 1 is used as means for achieving the above object.
The seat surface of the valve seat 2 on which the valve portion 60 mounted on the body 1 is fixedly mounted on the body 1 with the valve portion 60 formed on the distal end edge of the tubular wall 6a of the tubular valve 6 assembled to move in the axial direction by the pressure sensitive operation of the pressure sensitive plate 4. 20 so as to freely advance and retreat along the direction in which the axial direction is orthogonal to the seat surface 20, and a flow path a along the seat surface 20 is provided around the facing portion of the valve portion 60 and the seat surface 20. In the uniaxial pressure reducing valve A to be formed, a protrusion 7 having a diameter smaller than the inner diameter of the tubular valve 6 is provided at the central portion of the seat surface 20 of the valve seat 2, and the peripheral surface thereof is hemispherical, conical, or truncated. Cone shape
The seat surface 2 is formed into a conical shape with a star-shaped cross section.
It is installed so that it projects from 0 to the inner cavity of the tubular valve 6 and its protruding end projects into the inner cavity of the tubular valve 6 when the valve is opened, and flows along the seat surface 20 through the periphery of the valve seat 2. While the water flow that flows into the passage a and concentrates above the center of the seat surface 20 is rectified by the peripheral surface of the protrusion 7, the peripheral surface of the protrusion 7 causes the water flow in the axial direction of the cylindrical valve 6. A uniaxial pressure reducing valve characterized by changing the direction. Further, in the above-described uniaxial pressure reducing valve, a protrusion 7 having a diameter smaller than the inner diameter of the tubular valve 6 is provided at the central portion of the seat surface 20 of the valve seat 2, and a shaft portion 75 is provided at the central portion of the upper surface. Is formed in a water wheel shape having a large number of partition plates 76 radially projecting from the peripheral surface of, and installed so as to project from the seat surface 20 toward the inner cavity of the tubular valve 6,
The tubular valve 6 prevents the flow of water flowing through the peripheral surface of the valve seat 2 into the flow path a along the seat surface 20 and being concentrated at a position above the central portion of the seat surface 20 while avoiding collision of the flows. A uniaxial pressure reducing valve characterized in that the direction is changed to the axial direction of. Further, in the above-described uniaxial pressure reducing valve A, the projection body 7 having a diameter smaller than the inner diameter of the tubular valve 6 is provided at the central portion of the seat surface 20 of the valve seat 2, and the bottom surface is a flat plate-like board body 73 which is an upper surface. A large number of needle-shaped bodies or rod-shaped bodies 74 having a small diameter are formed on the side to form a sword mountain shape, and the cylindrical valve 6 is inserted from the seat surface 20.
Is installed so as to project toward the inner cavity of the seat, and a water flow that flows into the flow path a along the seat surface 20 through the periphery of the valve seat 2 and concentrates at a position above the central portion of the seat surface 20. The uniaxial pressure reducing valve is characterized in that the flow is guided in the axial direction of the tubular valve 6 while weakening the collision between the two. In addition, in the above-described uniaxial pressure reducing valve A, the projection body 7 having a diameter smaller than the inner diameter of the tubular body 6 is provided at the central portion of the seat surface 20 of the valve seat 2.
Is formed into a hollow frustoconical shape or a cone shape with the inside thereof being air-conditioned, and a large number of pores 77 penetrating into the inside thereof are formed in the peripheral wall thereof.
And a through hole 78 having a diameter larger than that of the hole 77 is provided at the apex so as to project from the seat surface 20 toward the inner cavity of the tubular valve 6, and the seat surface 20 passes through the periphery of the valve seat 2. The water flow that flows into the flow path a along the flow path a and concentrates at a position above the center of the seat surface 20 is rectified so as to change the direction of the water flow in the axial direction of the tubular valve 6, and a part of the water flow is divided into a large number of pores. The present invention proposes a uniaxial pressure reducing valve which is characterized in that it is guided to the inner cavity of the projection body 7 through 77 and merges in the inner cavity so as to weaken the collision of water streams.
【０００７】しかして、この本発明手段は、上述の目的
を達成するために種々の研究と実験を重ねて得られた知
見に基いて完成したものである。The means of the present invention, however, has been completed based on the findings obtained through various studies and experiments for achieving the above-mentioned object.
【０００８】即ち、一軸減圧弁Ａは、筒状弁６を使用
し、一次側ｗから流入する水が、その筒状弁６の先端の
開放口の口縁に形設せる弁部６０とこれに対向する弁座
２のシート面２０との間に形成される流路ａを、ボディ
１の軸方向と直交する方向に沿い筒状弁６の先端の開放
口に向けて集中していくように、筒状弁６の筒壁６ａに
向けて流れ、そこで、流れ方向をボディ１の軸方向に沿
う方向に換えて、筒状弁６の内腔に流入し、その内腔を
経て二次側ｙに流出していくことから、流路ａから筒状
弁６の内腔に流入していくときに水同志が衝突して直角
に曲るよう流れ方向を換えることにより乱流を起し、そ
れが流れ音を発生させる原因となっていると考えられた
ことで、この乱流をなくすように、弁座２のシート面２
０の中心部位に、このシート面２０と対向する筒状弁６
の内径よりも小径に形成した突起体を設けて、流路ａか
ら筒状弁６の内腔に向け集中するように流入していく水
の流れが、この突起体に衝突してから合流していくよう
にして水同志の衝突を阻止するとともに水流の方向変換
時の流れを整流するようにしたところ、流水音が小さく
なると共に流量がアップする結果が得られた。That is, the uniaxial pressure reducing valve A uses the tubular valve 6, and the water flowing from the primary side w is formed at the edge of the open end of the tubular valve 6 and the valve portion 60. So that the flow path a formed between the seat surface 20 of the valve seat 2 and the valve seat 2 is concentrated toward the opening at the tip of the tubular valve 6 along the direction orthogonal to the axial direction of the body 1. Flow toward the cylindrical wall 6a of the tubular valve 6, where the flow direction is changed to the direction along the axial direction of the body 1, and the secondary valve flows into the inner cavity of the tubular valve 6 through the inner cavity. Since it flows out to the side y, when flowing into the inner cavity of the tubular valve 6 from the flow path a, turbulent flow is generated by changing the flow direction so that the water collides with each other and bends at a right angle. , It was thought that it was the cause of the flow noise, so as to eliminate this turbulence, the seat surface 2 of the valve seat 2
The cylindrical valve 6 facing the seat surface 20 is provided at the central portion of 0.
By providing a protrusion formed to have a smaller diameter than the inner diameter of, the flow of water flowing from the flow path a toward the inner cavity of the tubular valve 6 in a concentrated manner collides with the protrusion and then merges. As a result, the collision of water comrades was prevented and the flow was rectified when the direction of the water flow was changed, and the result was that the flow noise increased and the flow rate increased.
【０００９】そして、このことから、目的を達成するた
めの手段として前述の手段を提起しているものである。From this, the above-mentioned means is proposed as means for achieving the object.
【００１０】[0010]
【発明の実施の形態】本発明手段による一軸減圧弁Ａ
は、弁箱となるボディ１を軸筒状に形成し、それの内腔
には、流入口となる一次側ｗの接続口１０に寄る位置の
軸部位に、弁座２を設け、この弁座２よりも二次側ｙに
寄る部位に、ピストン状に形成した感圧板４をボディ１
の軸方向に摺動自在に嵌装し、それの中心部位に、軸方
向をボディ１の軸方向に沿わせた筒状弁６を一体または
一体的に装設し、それの筒壁６ａの一次側ｗに向う側
を、弁座２よりも二次側ｙに寄る部位に設けたバネ受座
３の中心部に開設した嵌合穴３１に摺動自在に嵌合し、
その筒壁６ａの端部に形成した弁部６０を、前述の弁座
２のシート面２０に進退自在に対向させ、流入口から流
入する水が、弁座２のシート面２０に沿うボディ１の軸
方向と直交する方向の流路ａを経て筒状弁６の内腔に流
入していくようにすることについては、従来の一軸減圧
弁と同様に構成してよい。BEST MODE FOR CARRYING OUT THE INVENTION Uniaxial pressure reducing valve A according to the means of the present invention.
Forms a body 1 to be a valve box in a cylindrical shape, and a valve seat 2 is provided in an inner cavity of the body 1 at a shaft portion near a connection port 10 on a primary side w to be an inflow port. At the portion closer to the secondary side y than the seat 2, a pressure-sensitive plate 4 formed like a piston is attached to the body 1.
Is slidably fitted in the axial direction, and a cylindrical valve 6 whose axial direction is aligned with the axial direction of the body 1 is integrally or integrally provided at the central portion of the cylindrical valve 6a. The side facing the primary side w is slidably fitted into a fitting hole 31 formed in the center of the spring seat 3 provided at a portion closer to the secondary side y than the valve seat 2,
The valve portion 60 formed at the end of the cylindrical wall 6a is movably opposed to the seat surface 20 of the valve seat 2 described above, and the water flowing from the inflow port flows along the seat surface 20 of the valve seat 2 in the body 1 The inflow into the inner cavity of the tubular valve 6 via the flow path a in the direction orthogonal to the axial direction may be configured similarly to the conventional uniaxial pressure reducing valve.
【００１１】そして、このように、軸方向がボディ１の
軸方向に沿う筒状弁６の先端の弁部６０と、ボディ１の
軸方向と直交する方向の弁座２のシート面２０とを、シ
ート面２０に沿う流路ａにおいて対向させ、二次側ｙの
圧力変化に応じて作動する感圧板４により筒状弁６が弁
座２のシート面２０に対して進退することで、流路ａか
ら筒状弁６の内腔に流入する水の流量を変化させて二次
側ｙの圧力を制御せしめるようにするが、弁座２のシー
ト面２０の中心部位には、流路ａ内を筒状弁６の内腔に
向けて流れてくる水の流れが、水流同志で衝突する前に
衝突する突起体７を設ける。As described above, the valve portion 60 at the tip of the tubular valve 6 whose axial direction extends along the axial direction of the body 1 and the seat surface 20 of the valve seat 2 in the direction orthogonal to the axial direction of the body 1 are provided. , The tubular valve 6 moves forward and backward with respect to the seat surface 20 of the valve seat 2 by the pressure sensitive plate 4 which is opposed to the flow path a along the seat surface 20 and operates according to the pressure change on the secondary side y. The flow rate of water flowing from the passage a into the inner cavity of the tubular valve 6 is changed to control the pressure on the secondary side y. However, in the central portion of the seat surface 20 of the valve seat 2, the passage a A projection body 7 is provided on which the flow of water flowing toward the inner cavity of the tubular valve 6 collides before colliding with each other.
【００１２】この突起体７は、弁座２の周囲を経てシー
ト面２０に沿う流路ａ内に流れきた水の流れが、筒状弁
６の内腔に流入するようシート面２０の中心部位に向け
て流れ込んできたときに、水同志で衝突し合うようにな
るのを避けるとともに、流れ方向を、筒状弁６の軸方向
に沿う方向に変換させるよう誘導するようにするための
もので、弁座２のシート面２０の中心部位に、筒状弁６
の内径よりも小径とした突起状としてシート面２０から
筒状弁６の内腔に向け突出して、それの突出端が図３に
あるよう開弁時において筒状弁６の内腔に突入するよう
に装設する。The projection 7 has a central portion of the seat surface 20 so that the flow of water flowing through the periphery of the valve seat 2 into the flow path a along the seat surface 20 flows into the inner cavity of the tubular valve 6. It is for avoiding the collision of water with each other when they flow toward each other, and for guiding the flow direction so as to convert the flow direction to the direction along the axial direction of the tubular valve 6. At the central portion of the seat surface 20 of the valve seat 2, the cylindrical valve 6
As a protrusion having a diameter smaller than the inner diameter of the tubular valve 6, the sheet surface 20 projects toward the inner cavity of the tubular valve 6, and the projecting end thereof projects into the inner cavity of the tubular valve 6 when the valve is opened as shown in FIG. To install.
【００１３】この突起体７は、上述の水同志の衝突の防
止を流路ａ内を流れる水が、筒状弁６の内腔に向けて流
れ方向を変換していくのを助長するようになればよく、
その形状・構造は任意である。This projection 7 prevents the above-mentioned collision of water from colliding with each other, and helps the water flowing in the flow path a to change its flow direction toward the inner cavity of the tubular valve 6. I hope
Its shape and structure are arbitrary.
【００１４】また、この突起体７は、半球状・コーン状
・円錐状・円錐台状・断面星形の星状円錐体に形成し
て、水流の方向変換の際の整流を主体とする場合と、水
車状に形成して水流同志の衝突を抑止することを主体と
する場合と、剣山状または中空の截頭円錐状体の周壁に
内部に透通する多数の孔隙を設けるとともに頂端に透孔
を設けた形態のものとして前記両者の折衷型とする場合
とがある。When the projection 7 is formed into a hemispherical, cone-shaped, cone-shaped, truncated cone-shaped, star-shaped conical body having a star-shaped cross section, and is mainly used for rectifying water when changing its direction. In the case of mainly forming a water wheel to suppress the collision of water flow comrades, and in the case of forming a large number of pores through the circumference wall of a sword mountain or hollow truncated cone and passing through the top end. There is a case in which the above-mentioned eclectic type is used as a form having holes.
【００１５】[0015]
【実施例】次に実施例を図面に従い詳述する。なお、図
面符号は従来手段のものと同効の構成部材については同
一の符号を用いるものとする。Embodiments Next, embodiments will be described in detail with reference to the drawings. The same reference numerals are used for the constituent members having the same effects as those of the conventional means.
【００１６】図３は本発明手段を実施せる一軸減圧弁Ａ
の縦断正面図で、同図において、１は弁箱を構成するボ
ディ、２は弁座、３はバネ受座、４は感圧板、５はバ
ネ、６は筒状弁、７は突起体を示す。FIG. 3 is a uniaxial pressure reducing valve A for implementing the means of the present invention.
FIG. 1 is a vertical front view of FIG. 1, in which 1 is a body forming a valve box, 2 is a valve seat, 3 is a spring seat, 4 is a pressure sensitive plate, 5 is a spring, 6 is a cylindrical valve, and 7 is a protrusion. Show.
【００１７】ボディ１は軸筒状に形成してあり、それの
軸方向の一端側には一次側ｗとの接続口１０が形設され
他端側には二次側ｙとの接続口１１が形設してある。The body 1 is formed in the shape of a shaft cylinder, and a connection port 10 with the primary side w is formed on one end side in the axial direction of the body 1 and a connection port 11 with the secondary side y is formed on the other end side. Is formed.
【００１８】弁座２は、ボディ１の内腔の一次側ｗに寄
る位置の中心部位に配位され、それのシート面２０が、
ボディ１の軸方向と直交する状態として弁座金具２１に
よりボディ１に対し固定状体に組付けてある。The valve seat 2 is arranged at the central portion of the inner cavity of the body 1 near the primary side w, and its seat surface 20 is
The valve seat fitting 21 is assembled to the body 1 as a fixed body in a state orthogonal to the axial direction of the body 1.
【００１９】バネ受座３は、ボディ１内腔を横切る隔壁
状に形成して前述の弁座２よりも所定の距離だけ二次側
ｙに寄る位置に配し、ボディ１に対し固定状体に組付け
てあって、それの中心部位には、筒状弁６の先端側を摺
動自在に嵌挿するための嵌合穴３１が開設してあり、ま
た、一次側ｗに向う端面３０と弁座２のシート面２０と
の間にはボディ１の軸方向と直交する方向に沿う円盤状
の流路ａを形成している。The spring seat 3 is formed in the shape of a partition wall that traverses the inner cavity of the body 1 and is arranged at a position closer to the secondary side y than the aforementioned valve seat 2 by a predetermined distance. And a fitting hole 31 for slidably fitting the tip side of the tubular valve 6 is formed in the center portion of the end surface 30 facing the primary side w. A disc-shaped flow path a is formed between the valve seat 2 and the seat surface 20 of the valve seat 2 along a direction orthogonal to the axial direction of the body 1.
【００２０】感圧板４は、ボディ１の内腔にピストン状
に嵌合する盤状に形成されてボディ１内の二次側ｙに寄
る部位にボディ１の軸方向に自在に摺動するように嵌装
され、前述のバネ受座３との間に張設せるバネ５により
二次側ｙに向けて押出されるように付勢してあり、その
押し出される方向の作動のエンドは、ボディ１の二次側
ｙの端部に嵌着したストッパー８により規制されてい
る。The pressure-sensitive plate 4 is formed in a disc-like shape that fits in the inner cavity of the body 1 like a piston, and is slidable in the axial direction of the body 1 at a portion near the secondary side y in the body 1. Is urged to be pushed toward the secondary side y by the spring 5 stretched between the spring seat 3 and the spring seat 3 described above, and the end of the operation in the pushing direction is the body. It is regulated by a stopper 8 fitted to the end portion of the secondary side y of 1.
【００２１】筒状弁６は、前述の感圧板４の中心部位
に、その感圧板４を形成する素材によって一体に連続さ
せて形設してあって、それの筒壁６ａの先端側は、前述
のバネ受座３の中心部位に開設した嵌合穴３１に、水密
保持部材３２により水密を保持せしめて摺動自在に嵌合
してあり、その筒壁６ａの先端側の開放端には、前述の
弁座２のシート面２０に対向する弁部６０が形設してあ
る。The tubular valve 6 is integrally formed in the central portion of the pressure sensitive plate 4 by the material forming the pressure sensitive plate 4, and the tip end side of the cylindrical wall 6a thereof is A watertight holding member 32 holds the watertightness in a fitting hole 31 formed in the center portion of the spring seat 3 described above so as to be slidable. The valve portion 60 facing the seat surface 20 of the valve seat 2 is formed.
【００２２】突起体７は、この例においては、図４に示
している如く、底面７０の中心部位に、その底面７０よ
りも縮径した軸杆状の取付軸部７１が下方に向けて突出
する円錐形状に形成してあり、かつ、その円錐形状の主
体７ａの底面７０の径を、前述の筒状弁６の内径よりも
幾分小径に形成している。なお、この底面７０の径は、
シート面２０の形状との関係において定めるもので、筒
状弁６の径よりも大径にする場合がある。In this example, as shown in FIG. 4, the projection 7 has a shaft rod-shaped mounting shaft portion 71, which has a diameter smaller than that of the bottom surface 70 and projects downward at the central portion of the bottom surface 70. The diameter of the bottom surface 70 of the conical main body 7a is slightly smaller than the inner diameter of the cylindrical valve 6 described above. The diameter of the bottom surface 70 is
It is determined in relation to the shape of the seat surface 20, and may be larger than the diameter of the tubular valve 6.
【００２３】そして、その円錐形状の主体７ａの底面７
０を、弁座２のシート面２０の中心部位に軸心線を筒状
弁６の軸心線と揃えた状態として当接して、その底面７
０から突出する取付軸部７１を、弁座２および弁座金具
２１に予め開設しておく取付穴に嵌挿して、取付軸部７
１の下端を工具により弁座金具２１にかしめ付けること
で、ボディ１に対して固定装設してある。Then, the bottom surface 7 of the conical main body 7a
0 is brought into contact with the central portion of the seat surface 20 of the valve seat 2 with its axis aligned with the axis of the tubular valve 6, and its bottom surface 7
The mounting shaft portion 71 projecting from 0 is fitted into a mounting hole that is opened in the valve seat 2 and the valve seat fitting 21 in advance, and the mounting shaft portion 7
The lower end of 1 is fixed to the body 1 by caulking it to the valve seat fitting 21 with a tool.
【００２４】次に図５は突起体７の別の実施例を示して
いる。この実施例の突起体７は、前述の図４に示してい
る円錐形状の主体７ａの頭部を截断して、截頭円錐形に
形成してある。この例の突起体７も、それの底面７０の
径は筒状弁６の内径よりも小径に形成してあり、また、
その底面７０の中心部位には下方に突出する取付軸部７
１が設けてあって、この取付軸部７１により前述の図４
に示す例の突起体７と同様の手段で弁座２のシート面２
０の中心部位に組付けられる。Next, FIG. 5 shows another embodiment of the projection 7. The projection 7 of this embodiment is formed into a truncated cone shape by cutting the head of the conical main body 7a shown in FIG. Also in the projection 7 of this example, the diameter of the bottom surface 70 thereof is smaller than the inner diameter of the tubular valve 6, and
The mounting shaft portion 7 protruding downward at the central portion of the bottom surface 70.
1 is provided, and the mounting shaft portion 71 is used for the above-mentioned FIG.
The seat surface 2 of the valve seat 2 by the same means as the protrusion 7 of the example shown in FIG.
It is installed in the central part of 0.
【００２５】次に図６は突起体７のもう一つの実施例を
示している。この例は主体７ａの頭部を球面に形成し
て、主体７ａの全体を半球状に形成した例である。この
例も、底面７０の径の設定および弁座２のシート面２０
に対する組付手段は前述の実施例と同様に構成してよ
い。Next, FIG. 6 shows another embodiment of the projection 7. In this example, the head of the main body 7a is formed into a spherical surface, and the entire main body 7a is formed into a hemispherical shape. Also in this example, the diameter of the bottom surface 70 is set and the seat surface 20 of the valve seat 2 is set.
The assembling means may be configured in the same manner as the above-mentioned embodiment.
【００２６】次に図７は突起体７のさらに別の実施例を
示している。この例は、円錐形状の主体７ａの周面に、
頭部に向けて次第に巾を狭くするとともに深さが浅くな
るＶ字形の溝７２…を周方向に並列させて設け、全体が
断面において星形となるようにした例である。この例
も、それの底面７０の径の設定および弁座２のシート面
２０に対する取付手段は前述の実施例と同様に構成して
よい。Next, FIG. 7 shows still another embodiment of the protrusion 7. In this example, on the peripheral surface of the conical main body 7a,
This is an example in which V-shaped grooves 72 whose width is gradually narrowed toward the head and whose depth is shallow are provided in parallel in the circumferential direction so that the entire cross section becomes a star shape. Also in this example, the setting of the diameter of the bottom surface 70 and the mounting means of the valve seat 2 to the seat surface 20 may be configured in the same manner as in the above-described embodiment.
【００２７】次に図８は突起体７のさらに異なる実施例
を示している。この例は、前述した図４〜図７において
示した実施例が、流路ａを弁座２のシート面２０の中心
の上方部位に集中してくるように流れてくる水の流れを
筒状弁６の内腔に向わせるように誘導するものを主体と
しているのに対して、その水の流れ同志の衝突を避ける
ようにするのを主としている例である。Next, FIG. 8 shows a further different embodiment of the projection 7. In this example, in the embodiment shown in FIGS. 4 to 7 described above, the flow of water flowing so as to concentrate the flow path a on the upper part of the center of the seat surface 20 of the valve seat 2 is tubular. In this example, the main component is to guide the valve 6 toward the inner cavity, while the main component is to avoid collision of the water flows.
【００２８】即ち、この例は、流路ａ内を弁座２のシー
ト面２０の中心部の上方位置に向けて集中するように流
れ込んでくる水流を、それぞれの方向の流れごとに分け
て堰止め、それらの水流が堰止められた後に合流して上
方に向うようにしている例であり、突起体７は、シート
面２０に当接する底面７０を具備する底部を平盤状の盤
体７３に形成して、それの上面の中心部に軸状部７５を
設け、周辺部には軸状部７５の周面から放射状に突出す
るよう多数の仕切板７６…を設けて、主体７ａを全体と
して水車状に形成してある。That is, in this example, the water flow that flows so as to concentrate in the flow path a toward the upper position of the central portion of the seat surface 20 of the valve seat 2 is divided for each flow in each direction. This is an example in which the water flow is stopped and the water flows are merged and then directed upward. The projection 7 has a flat plate-like plate 73 with a bottom having a bottom surface 70 that abuts the seat surface 20. , A shaft-shaped portion 75 is provided at the center of the upper surface thereof, and a large number of partition plates 76 are provided in the peripheral portion so as to radially project from the peripheral surface of the shaft-shaped portion 75, so that the main body 7a is entirely formed. It is formed like a water wheel.
【００２９】この例の突起体７も、それの底面７０の径
の設定および弁座２のシート面２０に対する取付手段
は、前述の各実施例の突起体７と同様に構成してよい。In the projection 7 of this example, the setting of the diameter of the bottom surface 70 and the mounting means of the valve seat 2 to the seat surface 20 may be configured in the same manner as the projection 7 of each of the above-described embodiments.
【００３０】次に図９は、前述の図４〜図７に示した水
流の方向変換の流れの誘導を主体とした第１の形態のも
のと図８および図９に示した水流同志の衝突を避けるの
を主体とした第２の形態のものとの折衷形となる第３の
形態のものである。Next, FIG. 9 shows a collision between the water flow members shown in FIGS. 8 to 9 and the first embodiment mainly for guiding the flow of the direction change of the water flow shown in FIGS. The third form is an eclectic form with the second form mainly for avoiding.
【００３１】即ち、この例においては、弁座２のシート
面２０の中心部位に当接する底面７０を具備する底部
を、平盤状の盤体７３に形成して、それの上面側に、多
数の針状体乃至小径の棒状体７４…を林立するように植
設して、主体７ａを全体として剣山状に形成した例であ
る。That is, in this example, the bottom portion having the bottom surface 70 that abuts the central portion of the seat surface 20 of the valve seat 2 is formed on the flat plate body 73, and a large number of them are provided on the upper surface side thereof. This is an example in which the needle-shaped body or the rod-shaped body 74 having a small diameter is planted so as to stand upright and the main body 7a is formed in a sword mountain shape as a whole.
【００３２】そして、この例においては、流路ａ内を弁
座２のシート面２０に沿い、それの中心部位に向けて流
れてきた水流が、その中心部位に配設してある突起体７
の林立する針状体乃至棒状体７４…に衝突して、流れ同
志の衝突が弱められながら、針状体乃至棒状体７４…の
軸方向であるシート面２０に対し垂直な方向に誘導され
て筒状弁６の内腔に流入していくようにしてある。In this example, the water flow flowing along the seat surface 20 of the valve seat 2 in the flow path a toward the central portion of the valve seat 2 has the projection 7 disposed at the central portion.
Of the needles or rods 74 ... Standing in the direction perpendicular to the seat surface 20, which is the axial direction of the needles or rods 74. It is designed to flow into the inner cavity of the tubular valve 6.
【００３３】なお、この例も、底面７０の径の設定およ
び弁座２のシート面２０に対する取付手段は前述した各
実施例と同様に構成してよい。Also in this example, the setting of the diameter of the bottom surface 70 and the mounting means of the valve seat 2 to the seat surface 20 may be configured in the same manner as in the above-described embodiments.
【００３４】次に図１０は、水流の一部が筒状弁６の内
腔に向けて誘導され一部が水勢を弱められた状態で合流
していくようにした例であって、突起体７は、それの主
体７ａを、截頭円錐形乃至コーン状に形成するが、内部
が空洞の中空に形成して、コーン状をなす周壁に、内部
に透通する多数の孔隙７７…を形設し、頂部には前記孔
隙７７…よりも大径の透孔７８を開設しておいて、これ
により、流路ａ内をシート面２０の中心部の上方位置に
集中するように流れてる水の流れを、コーン状をなす主
体７ａの周面により上方に向けて流れるよう導するとと
もに、主体７ａの周面に衝突してくる水流の一部を多数
の孔隙７７を介して主体７ａの内腔に流入させ、その内
腔において合流させることで水流同志の衝突を弱めるよ
うにしている。Next, FIG. 10 shows an example in which a part of the water flow is guided toward the inner cavity of the tubular valve 6 so that the water flow is partly weakened and the water flows into the inner space of the cylindrical valve 6. 7, the main body 7a is formed in a truncated cone shape or a cone shape, but the inside is formed hollow and a large number of pores 77 ... Water is flowing in the flow path a so as to concentrate on the upper part of the central portion of the seat surface 20 by providing a through hole 78 having a diameter larger than the pores 77 ... at the top. Of the water flow is directed upward by the peripheral surface of the cone-shaped main body 7a, and a part of the water flow colliding with the peripheral surface of the main body 7a is guided through the large number of pores 77 to the inside of the main body 7a. The collision between water streams is weakened by flowing into the cavity and joining at the lumen.
【００３５】[0035]
【発明の効果】以上説明したように、本発明による一軸
減圧弁Ａは、筒状弁６の筒壁６ａの先端縁に形成した弁
部６０と対向する弁座２のシート面２０の中心部位に、
筒状体６の内径より小径とした突起体７を、筒状弁６の
内腔に向けて突出するように装設しておいて、流路ａ内
を弁座２のシート面２０に沿いそれの中心部位の上方に
集中するように流れてくる水流が、この突起体７に当っ
て、水流同志の衝突が抑止され、また、筒状弁６の内腔
に向う方向へ誘導されるようにしているのだから、水流
同志の衝突により生ずる乱流による水流音を小さくし、
また、流量増加が得られるようになる。As described above, in the uniaxial pressure reducing valve A according to the present invention, the central portion of the seat surface 20 of the valve seat 2 facing the valve portion 60 formed at the tip edge of the cylindrical wall 6a of the cylindrical valve 6. To
A protrusion 7 having a smaller diameter than the inner diameter of the tubular body 6 is provided so as to project toward the inner cavity of the tubular valve 6, and the inside of the flow path a is along the seat surface 20 of the valve seat 2. The flow of water, which flows so as to concentrate above the central part of it, hits the protrusions 7 to prevent the collision of the water flows, and is guided in the direction toward the inner cavity of the tubular valve 6. Therefore, the sound of water flow due to the turbulent flow caused by the collision of water flow comrades is reduced,
In addition, the flow rate can be increased.
【図１】従前の一軸減圧弁の縦断正面図である。FIG. 1 is a vertical sectional front view of a conventional uniaxial pressure reducing valve.
【図２】同上の一軸減圧弁の作用の説明図である。FIG. 2 is an explanatory view of the operation of the uniaxial pressure reducing valve of the above.
【図３】本発明を実施せる一軸減圧弁の縦断正面図であ
る。FIG. 3 is a vertical cross-sectional front view of a uniaxial pressure reducing valve according to the present invention.
【図４】同上の一軸減圧弁の要部の拡大斜視図である。FIG. 4 is an enlarged perspective view of a main part of the same uniaxial pressure reducing valve.
【図５】同上の一軸減圧弁の突起体の別の実施例の斜視
図である。FIG. 5 is a perspective view of another embodiment of the projection of the uniaxial pressure reducing valve of the above.
【図６】同上一軸減圧弁の突起体のさらに別の実施例の
斜視図である。FIG. 6 is a perspective view of still another embodiment of the projection of the uniaxial pressure reducing valve of the above.
【図７】同上一軸減圧弁の突起体のもう一つの実施例の
斜視図である。FIG. 7 is a perspective view of another embodiment of the protrusion of the same uniaxial pressure reducing valve.
【図８】同上一軸減圧弁の突起体の異なる実施例の斜視
図である。FIG. 8 is a perspective view of another embodiment of the protrusion of the uniaxial pressure reducing valve of the same.
【図９】同上一軸減圧弁の突起体のさらに異なる実施例
の斜視図である。FIG. 9 is a perspective view of still another embodiment of the protrusion of the uniaxial pressure reducing valve of the above.
【図１０】同上一軸減圧弁の突起体のさらに異なる形態
の実施例の斜視図である。FIG. 10 is a perspective view of an embodiment of a projection of a uniaxial pressure reducing valve of the same as above, which has a different configuration.
Ａ…一軸減圧弁、ａ…流路、ｗ…一次側、ｙ…二次側、
Ｓ…受圧面、１…ボディ、１０・１１…接続口、２…弁
座、２０…シート面、２１…弁座金具、３…バネ受座、
３０…端面、３１…嵌合穴、３２…水密保持部材、４…
感圧板、５…バネ、６…筒状弁、６ａ…筒壁、６０…弁
部、７…突起体、７ａ…円錐形状の主体、７０…底面、
７１…取付軸部、７２…溝、７３…盤体、７４…針状体
乃至棒状体、７５…軸状部、７６…仕切板、７７…孔
隙、７８…透孔、８…ストッパー。A ... Uniaxial pressure reducing valve, a ... Flow path, w ... Primary side, y ... Secondary side,
S ... pressure receiving surface, 1 ... body, 10/11 connection port, 2 ... valve seat, 20 ... seat surface, 21 ... valve seat fitting, 3 ... spring seat,
30 ... End face, 31 ... Fitting hole, 32 ... Watertight holding member, 4 ...
Pressure-sensitive plate, 5 ... Spring, 6 ... Cylindrical valve, 6a ... Cylindrical wall, 60 ... Valve part, 7 ... Projection body, 7a ... Conical main body, 70 ... Bottom surface,
71 ... Attachment shaft portion, 72 ... Groove, 73 ... Board body, 74 ... Needle-like body or rod-like body, 75 ... Shaft-like portion, 76 ... Partition plate, 77 ... Pore, 78 ... Through hole, 8 ... Stopper.
フロントページの続き (58)調査した分野(Int.Cl.7，ＤＢ名) F16K 17/02 - 17/34 Continuation of front page (58) Fields investigated (Int.Cl. 7 , DB name) F16K 17/02-17/34
Claims (4)
方向に動くよう組付けた筒状弁６の筒壁６ａの先端縁に
形成した弁部６０を、ボディ１に固定装架せる弁座２
の、シート面２０に対し軸方向がそのシート面２０と直
交する方向に沿い自在に進退するよう対向させ、その弁
部６０とシート面２０との対向部位の周囲に、前記シー
ト面２０に沿う流路ａを形成する一軸減圧弁Ａにおい
て、弁座２のシート面２０の中心部位に、前記筒状弁６
の内径よりも小径とした突起体７を、それの周面が半球
状・円錐状・截頭円錐形状・横断面星形の円錐状をなす
形状に形成して、シート面２０から筒状弁６の内腔に向
け突出してその突出端が開弁時の筒状弁６の内腔に突入
するように装設し、弁座２の周囲を経てシート面２０に
沿う流路ａ内に流入してシート面２０の中心部の上方位
置に集中してくる水流を、突起体７の周面により整流さ
せながらその突起体７の周面によって筒状弁６の軸方向
に方向変換させるようにしたことを特徴とする一軸減圧
弁。1. A valve portion 60 formed on the tip edge of a cylindrical wall 6a of a cylindrical valve 6 mounted on the body 1 so as to move in the axial direction by a pressure-sensitive operation of a pressure-sensitive plate 4 is fixedly mounted on the body 1. Valve seat 2
The seat surface 20 is opposed to the seat surface 20 so as to freely move forward and backward along a direction orthogonal to the seat surface 20, and the seat surface 20 is provided around the facing portion of the valve portion 60 and the seat surface 20. In the uniaxial pressure reducing valve A forming the flow path a, the cylindrical valve 6 is provided at the central portion of the seat surface 20 of the valve seat 2.
The projection 7 having a diameter smaller than the inner diameter of the seat is formed into a hemispherical shape, a conical shape, a truncated cone shape, and a conical shape having a star-shaped cross section, and the cylindrical surface is formed from the seat surface 20. 6 is installed so that the projecting end projects into the inner cavity of the tubular valve 6 when the valve is opened, and flows into the flow path a along the seat surface 20 through the periphery of the valve seat 2. Then, the water flow concentrated above the central portion of the seat surface 20 is rectified by the peripheral surface of the projection body 7 while being diverted to the axial direction of the tubular valve 6 by the peripheral surface of the projection body 7. A uniaxial pressure reducing valve characterized in that
方向に動くよう組付けた筒状弁６の筒壁６ａの先端縁に
形成した弁部６０を、ボディ１に固定装架せる弁座２
の、シート面２０に対し軸方向がそのシート面２０と直
交する方向に沿い自在に進退するよう対向させ、その弁
部６０とシート面２０との対向部位の周囲に、前記シー
ト面２０に沿う流路ａを形成する一軸減圧弁Ａにおい
て、弁座２のシート面２０の中心部位に、前記筒状弁６
の内径よりも小径とした突起体７を、中心部に軸状部７
５を設けそれの周面から放射状に突出する多数の仕切板
７６を設けた水車状に形成して、シート面２０から筒状
弁６の内腔に向け突出するよう装設し、弁座２の周面を
経てシート面２０に沿う流路ａ内に流入してシート面２
０中心部の上方位置に集中してくる水流を、それの流れ
同志の衝突を避けながら筒状弁６の軸方向に方向変換さ
せるようにしたことを特徴とする一軸減圧弁。2. A valve portion 60 formed on the tip edge of a cylindrical wall 6a of a cylindrical valve 6 mounted on the body 1 so as to move in the axial direction by a pressure-sensitive operation of a pressure-sensitive plate 4 is fixedly mounted on the body 1. Valve seat 2
The seat surface 20 is opposed to the seat surface 20 so as to freely move forward and backward along a direction orthogonal to the seat surface 20, and the seat surface 20 is provided around the facing portion of the valve portion 60 and the seat surface 20. In the uniaxial pressure reducing valve A forming the flow path a, the cylindrical valve 6 is provided at the central portion of the seat surface 20 of the valve seat 2.
The protrusion 7 having a diameter smaller than the inner diameter of the
5 is provided and is provided with a large number of partition plates 76 radially projecting from the peripheral surface thereof to form a water wheel, and the valve seat 2 is provided so as to project from the seat surface 20 toward the inner cavity of the tubular valve 6. Through the peripheral surface of the seat surface 2 to flow into the flow path a along the seat surface 20.
The uniaxial pressure reducing valve is characterized in that the water flow concentrated in the upper position of the central part is changed in the axial direction of the tubular valve 6 while avoiding the collision of the water flows.
方向に動くよう組付けた筒状弁６の筒壁６ａの先端縁に
形成した弁部６０を、ボディ１に固定装架せる弁座２
の、シート面２０に対し軸方向がそのシート面２０と直
交する方向に沿い自在に進退するよう対向させ、その弁
部６０とシート面２０との対向部位の周囲に、前記シー
ト面２０に沿う流路ａを形成する一軸減圧弁Ａにおい
て、弁座２のシート面２０の中心部位に、前記筒状弁６
の内径よりも小径とした突起体７を、底部が平盤状の盤
体７３で上面側に多数の針状体乃至小径の棒状体７４を
林立するよう植設した剣山状に形成して、シート面２０
から筒状弁６の内腔に向け突出するよう装設し、弁座２
の周囲を経てシート面２０に沿う流路ａ内に流入してシ
ート面２０の中心部の上方位置に集中してくる水流を、
それの流れ同志の衝突を弱めながら筒状弁６の軸方向に
誘導するようにしたことを特徴とする一軸減圧弁。3. A valve portion 60 formed on the front edge of a cylindrical wall 6a of a cylindrical valve 6 mounted on the body 1 so as to move in the axial direction by a pressure sensitive operation of a pressure sensitive plate 4 is fixedly mounted on the body 1. Valve seat 2
The seat surface 20 is opposed to the seat surface 20 so as to freely move forward and backward along a direction orthogonal to the seat surface 20, and the seat surface 20 is provided around the facing portion of the valve portion 60 and the seat surface 20. In the uniaxial pressure reducing valve A forming the flow path a, the cylindrical valve 6 is provided at the central portion of the seat surface 20 of the valve seat 2.
The protrusion 7 having a diameter smaller than the inner diameter of the is formed into a sword mountain shape in which a bottom has a flat plate 73 and a large number of needles or rods 74 having a small diameter are planted on the upper surface side in a forested manner. Seat surface 20
The valve seat 2 is installed so as to project toward the inner cavity of the tubular valve 6 from the valve seat 2
The water flow that flows into the flow path a along the seat surface 20 through the periphery of the
A uniaxial pressure reducing valve characterized in that the flow is guided in the axial direction of the tubular valve 6 while weakening the collision of the two.
方向に動くよう組付けた筒状弁６の筒壁６ａの先端縁に
形成した弁部６０を、ボディ１に固定装架せる弁座２
の、シート面２０に対し軸方向がそのシート面２０と直
交する方向に沿い自在に進退するよう対向させ、その弁
部６０とシート面２０との対向部位の周囲に、前記シー
ト面２０に沿う流路ａを形成する一軸減圧弁Ａにおい
て、弁座２のシート面２０の中心部位に、前記筒状体６
の内径よりも小径とした突起体７を、内部を空調とした
中空の截頭円錐形乃至コーン状に形成し、それの周壁に
内部に透過する多数の孔隙７７…を設け、頂部に前記孔
隙７７より大径の透孔７８を開設して、シート面２０か
ら筒状弁６の内腔に向け突出するよう装設し、弁座２の
周囲を経てシート面２０に沿う流路ａ内に流入してシー
ト面２０の中心部の上方位置に集中してくる水流を、筒
状弁６の軸方向に方向変換させるよう整流しながら水流
の一部を多数の孔隙７７を介して突起体７内腔に導きそ
の内腔において合流させて水流同志の衝突を弱めるよう
にしたことを特徴とする一軸減圧弁。4. A valve portion 60 formed on the front edge of a cylindrical wall 6a of a cylindrical valve 6 mounted on the body 1 so as to move in the axial direction by a pressure sensitive operation of a pressure sensitive plate 4 is fixedly mounted on the body 1. Valve seat 2
The seat surface 20 is opposed to the seat surface 20 so as to freely move forward and backward along a direction orthogonal to the seat surface 20, and the seat surface 20 is provided around the facing portion of the valve portion 60 and the seat surface 20. In the uniaxial pressure reducing valve A forming the flow path a, the cylindrical body 6 is provided at the central portion of the seat surface 20 of the valve seat 2.
The protrusion 7 having a diameter smaller than the inner diameter of the is formed into a hollow frustoconical shape or a cone shape with an air-conditioned inside, and a large number of pores 77 ... A through hole 78 having a diameter larger than 77 is provided so as to project from the seat surface 20 toward the inner cavity of the tubular valve 6, and is provided in the flow path a along the seat surface 20 through the periphery of the valve seat 2. While rectifying the water flow that flows in and concentrates at a position above the center of the seat surface 20 in the axial direction of the tubular valve 6, a part of the water flow is projected through a large number of pores 77 through the projections 7. A uniaxial pressure reducing valve, characterized in that it is guided to an inner cavity and merges in the inner cavity so as to weaken the collision of water streams.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP02772898A JP3368280B2 (en) | 1998-01-26 | 1998-01-26 | Single shaft pressure reducing valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP02772898A JP3368280B2 (en) | 1998-01-26 | 1998-01-26 | Single shaft pressure reducing valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH11210907A JPH11210907A (en) | 1999-08-06 |
| JP3368280B2 true JP3368280B2 (en) | 2003-01-20 |
Family
ID=12229092
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP02772898A Expired - Fee Related JP3368280B2 (en) | 1998-01-26 | 1998-01-26 | Single shaft pressure reducing valve |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3368280B2 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4117549B2 (en) * | 2003-02-14 | 2008-07-16 | 旭有機材工業株式会社 | Vacuum regulator |
| JP4258757B2 (en) * | 2003-04-21 | 2009-04-30 | 旭有機材工業株式会社 | Vacuum regulator |
| CN104747843B (en) * | 2015-04-07 | 2017-05-03 | 中山市雅西环保科技有限公司 | Water pipe joint capable of adjusting water yield from water outlet end |
-
1998
- 1998-01-26 JP JP02772898A patent/JP3368280B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH11210907A (en) | 1999-08-06 |
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