JP2019120362A - Poppet valve - Google Patents

Poppet valve Download PDF

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JP2019120362A
JP2019120362A JP2018001716A JP2018001716A JP2019120362A JP 2019120362 A JP2019120362 A JP 2019120362A JP 2018001716 A JP2018001716 A JP 2018001716A JP 2018001716 A JP2018001716 A JP 2018001716A JP 2019120362 A JP2019120362 A JP 2019120362A
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shaft
press
valve
seal member
shaft portion
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JP7119376B2 (en
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昭 水野
Akira Mizuno
昭 水野
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Yokohama Rubber Co Ltd
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Yokohama Rubber Co Ltd
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    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/30—Hydrogen technology
    • Y02E60/50—Fuel cells

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  • Quick-Acting Or Multi-Walled Pipe Joints (AREA)
  • Lift Valve (AREA)

Abstract

To prevent liquid leakage of fluid caused by its use.SOLUTION: In a state that a female-type coupling 12 and a male-type coupling 14 are separated from each other, and a seal member 46 of a poppet valve 22 abuts on a valve seat 20 and blocks the poppet valve accommodation hole 32, pressure from a high-pressure fluid acts on the inside of a poppet valve accommodation hole 32 and the pressure also acts in a direction in which an outer peripheral part of the seal member 46 abuts on the valve seat 20 via a flange part 52. Since the outer peripheral part of the seal member 46 abuts on the valve seat 20, the outer peripheral part of the seal member 46 is warped in a direction of separating from a rectification part 48, and the flange part 52 receives a force in a direction of separating from the rectification part 48. The flange part 52 is formed integrally with the valve stem 44, and thereby, even when the flange part 52 receives the force in the direction of separating from the rectification part 48, deviation of the seal member 46 in a direction separating from the rectification part 48 can be prevented.SELECTED DRAWING: Figure 2

Description

本発明は、管継手を構成する互いに係脱可能な一対のカップリングに設けられるポペットバルブに関する。   The present invention relates to a poppet valve provided in a pair of mutually engageable and disengageable couplings constituting a pipe joint.

互いに係脱可能な雌型カップリングと雄型カップリングとを備える管継手が提供されている（特許文献１参照）。
このような管継手では、雌型カップリングと雄型カップリングとを切り離した際に液漏れを防止するため、雌型カップリングと雄型カップリングには、それぞれポペットバルブが設けられている。
ところで、高温高圧の流体が流通される管継手のポペットバルブとして、弁軸と、弁軸に設けられたシール部材と、シール部材に隣接して弁軸に設けられた整流部と、弁軸と同軸上で整流部から突出する突出軸部と、弁軸に設けられ整流部と協働してシール部材を挟持するフランジ部とを有するものが提供されている。
このようなポペットバルブにおいては、シール部材は、ゴム製のＯリングに比較して高温高圧に耐えられるフッ素樹脂、あるいは、ばね鋼材などの弾性を有する材料で形成されている。
そして、整流部と突出軸部は弁軸と一体に形成され、フランジ部は弁軸と別部材で構成されている。
フランジ部は弁軸に圧入され、シール部材から離れる方向のフランジ部の動きが防止されている。 There is provided a pipe joint comprising a female coupling and a male coupling which can be engaged with each other (see Patent Document 1).
In such a pipe joint, in order to prevent the liquid leakage when the female coupling and the male coupling are separated, poppet valves are respectively provided to the female coupling and the male coupling.
By the way, as a poppet valve of a pipe joint through which high temperature and high pressure fluid flows, a valve shaft, a seal member provided on the valve shaft, a straightening unit provided on the valve shaft adjacent to the seal member, a valve shaft There is provided one having a projecting shaft portion coaxially projecting from the flow straightening portion, and a flange portion provided on the valve shaft and sandwiching the seal member in cooperation with the flow straightening portion.
In such a poppet valve, the seal member is formed of an elastic material such as a fluorine resin which can withstand high temperature and high pressure as compared with a rubber O-ring, or a spring steel material.
The straightening portion and the protruding shaft portion are integrally formed with the valve shaft, and the flange portion is formed of a member separate from the valve shaft.
The flange portion is press-fitted into the valve stem to prevent movement of the flange portion in a direction away from the seal member.

特開２００４−２５１４０８号公報Unexamined-Japanese-Patent No. 2004-251408

このようなポペットバルブを備える雌型カップリングと雄型カップリングでは、それらカップリングが切り離された状態で、ポペットバルブのシール部材が弁座に当接してそれらカップリングの内部流路を閉塞した状態において、高圧の流体からの圧力が内部流路に作用し、フランジ部を介してシール部材の外周部を弁座に当接する方向に作用する。
そしてシール部材の外周部が弁座に当接することから、シール部材の外周部は整流部から離れる方向に撓み、このシール部材の外周部の撓みによりフランジ部は整流部から引き離す方向への力を受ける。
このようにフランジ部が受ける整流部から引き離す方向への力は、雌型カップリングと雄型カップリングとを係脱する毎に作用し、使用によってフランジ部が離れる方向にずれ、シール部材と弁座との間に隙間が生じ、流体の液漏れが生じるおそれがあった。
本発明は前記事情に鑑み案出されたものであって、本発明の目的は、使用による流体の液漏れを防止する上で有利なポペットバルブを提供することにある。 In the female coupling and male coupling provided with such a poppet valve, the seal member of the poppet valve comes in contact with the valve seat to close the internal flow path of the coupling when the coupling is separated. In the state, the pressure from the high pressure fluid acts on the internal flow path, and acts on the outer peripheral portion of the seal member in the direction of coming into contact with the valve seat through the flange portion.
Then, since the outer peripheral portion of the seal member abuts on the valve seat, the outer peripheral portion of the seal member is bent in the direction away from the flow straightening portion, and the bending of the outer peripheral portion of the seal member receive.
Thus, the force in the direction of pulling away from the flow straightening section to which the flange section is applied acts every time the female coupling and the male coupling are engaged and disengaged, and the flange section is displaced in the direction away by use. There is a possibility that a gap may occur between the seat and the fluid leakage.
The present invention has been made in view of the above-mentioned circumstances, and an object of the present invention is to provide a poppet valve that is advantageous for preventing fluid leakage due to use.

上述の目的を達成するため、本発明は、弁軸と、前記弁軸に設けられたシール部材と、前記シール部材に隣接して前記弁軸に設けられた整流部と、前記弁軸と同軸上で前記整流部から突出する突出軸部と、前記弁軸に設けられ前記整流部と協働して前記シール部材を挟持するフランジ部とを有するポペットバルブであって、前記弁軸と前記整流部とは別部材で構成され、前記フランジ部は前記弁軸に一体形成され、前記整流部の中心に前記シール部材側に開口する弁軸圧入用孔が設けられ、前記弁軸圧入用孔に、前記シール部材から突出する前記弁軸の端部が圧入されていることを特徴とする。   In order to achieve the above-mentioned object, the present invention provides a valve shaft, a seal member provided on the valve shaft, a straightening unit provided on the valve shaft adjacent to the seal member, and coaxial with the valve shaft A poppet valve having a projecting shaft projecting from the straightening unit and a flange unit provided on the valve shaft and sandwiching the seal member in cooperation with the straightening unit, the valve shaft and the straightening unit The flange portion is integrally formed with the valve stem, and a hole for valve shaft press-fit opening opened to the seal member side is provided at the center of the flow straightening portion, and the valve shaft press-fit hole is formed The end portion of the valve stem protruding from the seal member is press-fitted.

本発明によれば、フランジ部は弁軸と一体に形成されていることから、フランジ部が整流部から引き離す方向への力を受けても、シール部材が整流部から離れる方向へのずれを防止できる。
したがって、使用によってシール部材と弁座との間に隙間が生じることを防止し、流体の液漏れを防止する上で有利となる。 According to the present invention, since the flange portion is integrally formed with the valve shaft, even if the flange portion receives a force in a direction to separate from the flow straightening portion, the shift of the seal member in the direction of separating from the flow straightening portion is prevented. it can.
Therefore, it is advantageous to prevent the use of a gap between the seal member and the valve seat and to prevent the fluid from leaking.

第１の実施の形態に係るポペットバルブを備える管継手の雌型カップリングと雄型カップリングが結合された状態を示す正面断面図である。It is front sectional drawing which shows the state with which the female type coupling and male type coupling of a pipe joint provided with the poppet valve which concerns on 1st Embodiment were couple | bonded. 第１の実施の形態に係るポペットバルブを備える管継手の雌型カップリングと雄型カップリングとの結合が解除された状態を示す正面断面図である。It is front sectional drawing which shows the state in which the coupling with the female type coupling of the pipe joint provided with the poppet valve which concerns on 1st Embodiment, and a male type coupling was cancelled | released. 第１の実施の形態に係るポペットバルブの断面図である。It is a sectional view of a poppet valve concerning a 1st embodiment. 第２の実施の形態に係るポペットバルブの断面図である。It is a sectional view of a poppet valve concerning a 2nd embodiment. 第３の実施の形態に係るポペットバルブの断面図である。It is sectional drawing of the poppet valve which concerns on 3rd Embodiment.

（第１の実施の形態）
次に、本発明の実施の形態を図面を参照して説明する。
図１、図２に示すように、管継手１０は、互いに係脱可能な雌型カップリング１２と雄型カップリング１４とを備え、雌型カップリング１２には、通路用結合部材１６がシール材１６０２を介してねじ結合されている。
雌型カップリング１２と雄型カップリング１４は、それぞれガイド体１８、弁座２０、ポペットバルブ２２、コイルスプリング２４が収容されたカップリングボディ２６Ａ、２６Ｂを備える。
雌型カップリング１２に収容されたガイド体１８、弁座２０、ポペットバルブ２２、コイルスプリング２４と、雄型カップリング１４に収容されたガイド体１８、弁座２０、ポペットバルブ２２、コイルスプリング２４とは同一形状である。
雌型カップリング１２と雄型カップリング１４のカップリングボディ２６Ａ、２６Ｂは、筒状を呈しその中心に軸心方向にそって貫通孔２８Ａ、２８Ｂが貫通形成されている。 First Embodiment
Next, embodiments of the present invention will be described with reference to the drawings.
As shown in FIGS. 1 and 2, the pipe joint 10 includes a female coupling 12 and a male coupling 14 which can be engaged with and detached from each other, and the female coupling 12 has a passage coupling member 16 sealed therein. The screw connection is made via the material 1602.
The female coupling 12 and the male coupling 14 respectively include coupling bodies 26A, 26B in which the guide body 18, the valve seat 20, the poppet valve 22, and the coil spring 24 are accommodated.
The guide body 18 housed in the female coupling 12, the valve seat 20, the poppet valve 22, the coil spring 24, and the guide body 18 housed in the male coupling 14, the valve seat 20, the poppet valve 22, the coil spring 24 And have the same shape.
The coupling bodies 26A and 26B of the female coupling 12 and the male coupling 14 have a cylindrical shape, and through holes 28A and 28B are formed in the center along the axial direction.

雌型カップリング１２のカップリングボディ２６Ａの貫通孔２８Ａは、カップリング挿脱用孔３０、ポペットバルブ収容孔３２がそれらの順に並べられて構成されている。
カップリング挿脱用孔３０には溝を介してＯリング３４が装着されている。
カップリング挿脱用孔３０側のポペットバルブ収容孔３２の端部には、径方向内側に膨出し、ポペットバルブ２２のシール部材４６が当接することで貫通孔２８Ａを閉塞する弁座２０が形成されている。
ガイド体１８は、カップリング挿脱用孔３０と反対に位置するポペットバルブ収容孔３２の箇所に配置され、突起３６とストップリング３８を介してポペットバルブ収容孔３２の軸方向に移動不能に配置されている。
ガイド体１８は、中心軸部１８０２と、中心軸部１８０２の周方向に間隔をおいた箇所から半径方向外方に突出する複数の凸条１８０４とを有し、中心軸部１８０２にはポペットバルブ２２を軸方向に移動可能に支持する案内孔１８０６が貫通形成されている。
雌型カップリング１２と反対に位置する通路用結合部材１６の端部は、管体などの流体通路に結合される通路用結合部４０Ａとされている。 The through hole 28A of the coupling body 26A of the female coupling 12 is configured by arranging a coupling insertion / removal hole 30 and a poppet valve accommodation hole 32 in that order.
An O-ring 34 is attached to the coupling insertion / removal hole 30 via a groove.
At the end of the poppet valve housing hole 32 on the coupling insertion / removal hole 30 side, a valve seat 20 is formed which bulges radially inward and abuts the sealing member 46 of the poppet valve 22 to close the through hole 28A. It is done.
The guide body 18 is disposed at the position of the poppet valve accommodation hole 32 opposite to the coupling insertion / removal hole 30, and disposed immovably in the axial direction of the poppet valve accommodation hole 32 via the projection 36 and the stop ring 38. It is done.
The guide body 18 has a central shaft portion 1802 and a plurality of convex strips 1804 projecting radially outward from a location spaced in the circumferential direction of the central shaft portion 1802, and the central shaft portion 1802 has a poppet valve. A guide hole 1806 axially movably supported is formed through the hole 1806.
The end of the passage coupling member 16 opposite to the female coupling 12 is a passage coupling portion 40A coupled to a fluid passage such as a tube.

雄型カップリング１４のカップリングボディ２６Ｂの端部は、カップリング挿脱用孔３０に挿脱可能に挿入される外径の挿脱用軸部４２として形成されている。
雄型カップリング１４のカップリングボディ２６Ｂの貫通孔２８Ｂは、ポペットバルブ収容孔３２を構成している。
ポペットバルブ収容孔３２の端部には、径方向内側に膨出し、ポペットバルブ２２のシール部材４６が当接することで貫通孔２８Ｂを閉塞する弁座２０が形成されている。
ガイド体１８は、挿脱用軸部４２と反対に位置するポペットバルブ収容孔３２の箇所に配置され、突起３６とストップリング３８を介してポペットバルブ収容孔３２の軸方向に移動不能に配置されている。
ガイド体１８は、中心軸部１８０２、複数の凸条１８０４、案内孔１８０６を有している。
挿脱用軸部４２と反対に位置する雄型カップリング１４の端部は、管体などの流体通路に結合される通路用結合部４０Ｂとされている。 The end of the coupling body 26B of the male coupling 14 is formed as an outer diameter insertion / removal shaft 42 which is insertably inserted into the coupling insertion / removal hole 30.
The through hole 28 </ b> B of the coupling body 26 </ b> B of the male coupling 14 constitutes a poppet valve receiving hole 32.
At the end of the poppet valve receiving hole 32, a valve seat 20 is formed which bulges radially inward and closes the through hole 28B by the contact of the seal member 46 of the poppet valve 22.
The guide body 18 is disposed at the position of the poppet valve accommodation hole 32 opposite to the insertion / removal shaft 42, and is disposed immovably in the axial direction of the poppet valve accommodation hole 32 via the projection 36 and the stop ring 38. ing.
The guide body 18 has a central shaft portion 1802, a plurality of ridges 1804, and a guide hole 1806.
The end of the male coupling 14 opposite to the insertion / removal shaft 42 is a passage coupling portion 40B coupled to a fluid passage such as a tube.

図３に示すように、ポペットバルブ２２は、弁軸４４と、弁軸４４に設けられたシール部材４６と、シール部材４６に隣接して弁軸４４に設けられた整流部４８と、弁軸４４と同軸上で整流部４８から突出する突出軸部５０と、弁軸４４に設けられ整流部４８と協働してシール部材４６を挟持するフランジ部５２とを有している。
図２に示すように、ポペットバルブ２２は、弁軸４４がガイド体１８の案内孔１８０６に挿入されてポペットバルブ収容孔３２に配置されている。
コイルスプリング２４は、ガイド体１８の複数の凸条１８０４とフランジ部５２との間でガイド体１８の中心軸部１８０２と弁軸４４に巻装して配置され、シール部材４６を弁座２０に当接する方向にポペットバルブ２２を付勢している。
シール部材４６が弁座２０に当接した状態でポペットバルブ収容孔３２は閉塞され、この状態で突出軸部５０が弁座２０から突出する。 As shown in FIG. 3, the poppet valve 22 includes a valve shaft 44, a seal member 46 provided on the valve shaft 44, a straightening unit 48 provided on the valve shaft 44 adjacent to the seal member 46, and a valve shaft A projecting shaft portion 50 coaxially with 44 and projecting from the flow straightening portion 48, and a flange portion 52 provided on the valve shaft 44 and sandwiching the seal member 46 in cooperation with the flow straightening portion 48 are provided.
As shown in FIG. 2, in the poppet valve 22, the valve stem 44 is inserted into the guide hole 1806 of the guide body 18 and disposed in the poppet valve receiving hole 32.
The coil spring 24 is wound around the central shaft portion 1802 of the guide body 18 and the valve shaft 44 between the plurality of ridges 1804 of the guide body 18 and the flange portion 52, and the seal member 46 is mounted on the valve seat 20. The poppet valve 22 is biased in the contact direction.
The poppet valve accommodation hole 32 is closed in a state in which the seal member 46 abuts on the valve seat 20, and in this state, the protruding shaft portion 50 protrudes from the valve seat 20.

図２に示すように、雌型と雄型のカップリングボディ２６Ａ、２６Ｂが離れた状態では、シール部材４６が弁座２０に係合し、ポペットバルブ収容孔３２を閉塞し、雌型カップリング１２、雄型カップリング１４からの流体漏れを阻止する。
図１に示すように、雌型と雄型のカップリングボディ２６Ａ、２６Ｂを結合する場合には、それらを同軸上に位置させ、カップリング挿脱用孔３０に挿脱用軸部４２が挿入され、Ｏリング３４が挿脱用軸部４２の外周面４２０２に弾接することで、カップリング挿脱用孔３０と挿脱用軸部４２とが液密に結合される。
この状態で、雌型と雄型のカップリングボディ２６Ａ、２６Ｂは、不図示の締結具により結合された状態が保持される。
また、ポペットバルブ２２はそれらの突出軸部５０が当接することでコイルスプリング２４の弾性力に抗して後退し、シール部材４６を後退させる。 As shown in FIG. 2, when the female and male coupling bodies 26A and 26B are separated, the seal member 46 engages with the valve seat 20 to close the poppet valve receiving hole 32, and the female coupling is performed. 12, prevent fluid leakage from male coupling 14;
As shown in FIG. 1, when the female and male coupling bodies 26A and 26B are coupled, they are coaxially positioned, and the shaft 42 for insertion and removal is inserted into the coupling insertion and removal hole 30. When the O-ring 34 resiliently contacts the outer peripheral surface 4202 of the insertion / removal shaft 42, the coupling insertion / removal hole 30 and the insertion / removal shaft 42 are fluid-tightly coupled.
In this state, the female and male coupling bodies 26A, 26B are held in a state of being coupled by a fastener (not shown).
Further, the poppet valve 22 is retracted against the elastic force of the coil spring 24 when the projecting shaft portions 50 abut, and the seal member 46 is retracted.

これにより雌型カップリング１２では、整流部４８と弁座２０との間と、突出軸部５０と弁座２０との間に、ポペットバルブ収容孔３２とカップリング挿脱用孔３０とを連通する環状の空間が形成される。
また、雄型カップリング１４では、整流部４８と弁座２０との間と、突出軸部５０と弁座２０との間に、ポペットバルブ収容孔３２とカップリング挿脱用孔３０とを連通する環状の空間が形成される。
そして、ポペットバルブ収容孔３２、ガイド体１８の凸条１８０４の間の流路を介して雌型と雄型のカップリングボディ２６Ａ、２６Ｂの貫通孔２８Ａ、２８Ｂが連通し、言い換えると雌型と雄型のカップリングボディ２６Ａ、２６Ｂの内部流路が連通し、雌型カップリング１２と雄型カップリング１４との間での油の流通が許容される。 As a result, in the female coupling 12, the poppet valve accommodation hole 32 and the coupling insertion / removal hole 30 are communicated between the rectifying portion 48 and the valve seat 20, and between the projecting shaft portion 50 and the valve seat 20. An annular space is formed.
Further, in the male coupling 14, the poppet valve housing hole 32 and the coupling insertion / removal hole 30 are communicated between the rectifying portion 48 and the valve seat 20, and between the projecting shaft portion 50 and the valve seat 20. An annular space is formed.
Then, the through holes 28A and 28B of the female and male coupling bodies 26A and 26B communicate with each other through the flow path between the poppet valve accommodation hole 32 and the ridges 1804 of the guide body 18, in other words, the female die The internal flow channels of the male coupling bodies 26A, 26B communicate with each other to allow the flow of oil between the female coupling 12 and the male coupling 14.

ここで第１の実施の形態のポペットバルブ２２について説明すると、図３に示すように、弁軸４４と整流部４８とは別部材で構成され、フランジ部５２は弁軸４４に一体形成されている。
詳細に説明すると、整流部４８はその外周部が円錐面４８０２で形成され、その中心にシール部材４６側に開口する弁軸圧入用孔４８０４が設けられ、本実施の形態では、弁軸圧入用孔４８０４は整流部４８を貫通して設けられている。
弁軸４４は、コイルスプリング巻装用軸部４４０２と、フランジ部５２と、シール部材装着用軸部４４０４と、圧入用軸部４４０６と、突出軸部用軸部４４０８とがそれらの順に並べられて構成されている。
コイルスプリング巻装用軸部４４０２は、ガイド体１８の案内孔１８０６に軸方向に移動可能に挿入される寸法で形成されている。
フランジ部５２は、コイルスプリング巻装用軸部４４０２の端部に設けられ、コイルスプリング巻装用軸部４４０２の半径方向外側に環状に突出している。
シール部材装着用軸部４４０４は、フランジ部５２の内周部から突出しており、シール部材装着用軸部４４０４は、シール部材４６の内周部に挿入される箇所である。
シール部材４６は、均一の厚さの環板状を呈し、フッ素樹脂、あるいは、ばね鋼材などのような高温高圧に耐えられる弾性を有する材料で形成されている。 Here, the poppet valve 22 according to the first embodiment will be described. As shown in FIG. 3, the valve shaft 44 and the flow straightening unit 48 are formed as separate members, and the flange portion 52 is integrally formed on the valve shaft 44 There is.
Describing in detail, the flow straightening portion 48 has an outer peripheral portion formed by a conical surface 4802, and a hole for valve shaft press-in 4804 opened at the center of the seal member 46 is provided at the center. A hole 4804 is provided through the rectifying unit 48.
In the valve shaft 44, a coil spring winding shaft portion 4402, a flange portion 52, a seal member mounting shaft portion 4404, a press-fit shaft portion 4406, and a protruding shaft portion shaft portion 4408 are arranged in that order. It is configured.
The coil spring winding shaft portion 4402 is formed so as to be axially movably inserted into the guide hole 1806 of the guide body 18.
The flange portion 52 is provided at an end portion of the coil spring winding shaft portion 4402 and annularly protrudes outward in the radial direction of the coil spring winding shaft portion 4402.
The seal member mounting shaft portion 4404 protrudes from the inner peripheral portion of the flange portion 52, and the seal member mounting shaft portion 4404 is a portion inserted into the inner peripheral portion of the seal member 46.
The seal member 46 is in the form of a ring plate having a uniform thickness, and is made of a material having elasticity that can withstand high temperature and high pressure, such as a fluorine resin or a spring steel material.

圧入用軸部４４０６は、シール部材装着用軸部４４０４から突出し、整流部４８の弁軸圧入用孔４８０４に圧入される箇所である。
突出軸部用軸部４４０８は、圧入用軸部４４０６から突出し、すなわち、整流部４８から突出し突出軸部５０を構成する箇所である。
シール部材装着用軸部４４０４にシール部材４６が挿入された状態で、圧入用軸部４４０６が整流部４８の弁軸圧入用孔４８０４に圧入され、フランジ部５２と整流部４８とでシール部材４６が挟持され、ポペットバルブ２２が構成されている。
詳細にはフランジ部５２の厚さ方向の一方の端面５２０２と整流部４８の基端の端面４８１０とでシール部材４６が挟持される。
本実施の形態では、フランジ部５２に隣接するコイルスプリング巻装用軸部４４０２の箇所に、ガイド体１８の中心軸部１８０２と同一外径の小径部４４１０が形成されている。したがって、図１、図２に示すように、コイルスプリング２４の一方の端部の内側にガイド体１８の中心軸部１８０２が挿入され、コイルスプリング２４の他方の端部の内側に小径部４４１０が挿入され、コイルスプリング２４が安定した状態で弁軸４４に巻装されている。
また、この小径部４４１０は、フランジ部５２よりも外径が小さいもののコイルスプリング巻装用軸部４４０２よりも外径が大きいため、フランジ部５２を補強する補強部材としても機能する。 The press-fit shaft 4406 protrudes from the seal-member attachment shaft 4404 and is a portion that is press-fit into the valve-shaft press-fit hole 4804 of the flow control unit 48.
The protruding shaft portion 4408 protrudes from the press-fitting shaft portion 4406, that is, a portion that protrudes from the rectifying portion 48 and constitutes the protruding shaft portion 50.
With the seal member 46 inserted into the seal member mounting shaft portion 4404, the press-fit shaft portion 4406 is press-fit into the valve shaft press-fit hole 4804 of the flow straightening unit 48, and the seal member 46 is formed by the flange 52 and the flow straightening unit 48. And the poppet valve 22 is configured.
Specifically, the seal member 46 is sandwiched between one end face 5202 in the thickness direction of the flange portion 52 and the end face 4810 at the base end of the flow straightening portion 48.
In the present embodiment, a small diameter portion 4410 having the same outer diameter as the central shaft portion 1802 of the guide body 18 is formed at the location of the coil spring winding shaft portion 4402 adjacent to the flange portion 52. Therefore, as shown in FIGS. 1 and 2, the central shaft portion 1802 of the guide body 18 is inserted inside one end of the coil spring 24, and the small diameter portion 4410 is inside the other end of the coil spring 24. The coil spring 24 is inserted and wound around the valve shaft 44 in a stable state.
Further, since the small diameter portion 4410 has an outer diameter smaller than that of the flange portion 52 but has an outer diameter larger than that of the coil spring winding shaft portion 4402, it also functions as a reinforcing member for reinforcing the flange portion 52.

第１の実施の形態によれば、雌型カップリング１２と雄型カップリング１４とが離れ、ポペットバルブ２２のシール部材４６が弁座２０に当接してポペットバルブ収容孔３２を閉塞した状態において、高圧の流体からの圧力がポペットバルブ収容孔３２内に作用し、フランジ部５２を介してシール部材４６の外周部を弁座２０に当接する方向に作用する。
そしてシール部材４６の外周部が弁座２０に当接することから、シール部材４６の外周部は整流部４８から離れる方向に撓み、このシール部材４６の外周部の撓みによりフランジ部５２は整流部４８から引き離す方向への力を受ける。
このようにフランジ部５２が受ける整流部４８から引き離す方向への力は、雌型カップリング１２と雄型カップリング１４とを係脱する毎に作用する。
第１の実施の形態では、フランジ部５２は弁軸４４と一体に形成されていることから、雌型カップリング１２と雄型カップリング１４とを係脱する毎にフランジ部５２が整流部４８から引き離す方向への力を受けても、シール部材４６が整流部４８から離れる方向へのずれを防止できる。
したがって、使用によってシール部材４６と弁座２０との間に隙間が生じることを防止し、流体の液漏れを防止する上で有利となる。 According to the first embodiment, in the state in which the female coupling 12 and the male coupling 14 are separated, and the seal member 46 of the poppet valve 22 abuts on the valve seat 20 to close the poppet valve accommodation hole 32. The pressure from the high pressure fluid acts in the poppet valve receiving hole 32 and acts on the outer peripheral portion of the seal member 46 in a direction of coming into contact with the valve seat 20 via the flange portion 52.
Then, since the outer peripheral portion of the seal member 46 abuts on the valve seat 20, the outer peripheral portion of the seal member 46 is bent in the direction away from the flow straightening portion 48. Receive force in the direction of pulling away from
Thus, the force in the direction of pulling away from the flow straightening unit 48 received by the flange unit 52 acts each time the female coupling 12 and the male coupling 14 are engaged and disengaged.
In the first embodiment, since the flange portion 52 is integrally formed with the valve shaft 44, the flange portion 52 functions as the flow control portion 48 every time the female coupling 12 and the male coupling 14 are engaged and disengaged. The seal member 46 can be prevented from being displaced in the direction away from the flow straightening unit 48 even when receiving a force in the direction of pulling it away from the direction.
Therefore, it is advantageous to prevent the formation of a gap between the seal member 46 and the valve seat 20 by use, and to prevent the fluid from leaking.

（第２の実施の形態）
次に第２の実施の形態のポペットバルブ２２について図４を参照して説明する。
なお、以下の実施の形態では、第１の実施の形態と同様の部分、部材については第１の実施の形態と同一の符号を付してその説明を省略し、異なった箇所について重点的に説明する。
第２の実施の形態は、突出軸部用軸部４４０８が弁軸４４と別部材である点が第１の実施の形態と異なっている。
詳細に説明すると、弁軸４４は、コイルスプリング巻装用軸部４４０２と、コイルスプリング巻装用軸部４４０２の半径方向外側に環状に突出するフランジ部５２と、フランジ部５２の内周部から突出しシール部材４６の内周部に挿入されるシール部材装着用軸部４４０４と、シール部材装着用軸部４４０４から突出し弁軸圧入用孔４８０４に圧入される圧入用軸部４４０６とがそれらの順に並べられて構成され、突出軸部用軸部４４０８を備えていない。
シール部材装着用軸部４４０４と反対に位置する圧入用軸部４４０６の端部に突出軸部圧入用孔４４１２が形成されている。
突出軸部５０は、突出軸部本体５００２と、突出軸部本体５００２から突設され突出軸部本体５００２よりも外形が小さい小径軸部５００４とを備えている。
突出軸部５０は、小径軸部５００４が突出軸部圧入用孔４４１２に圧入されて配置されている。
このような第２の実施の形態によっても第１の実施の形態と同様の効果が奏される。 Second Embodiment
Next, a poppet valve 22 according to a second embodiment will be described with reference to FIG.
In the following embodiment, the same parts and members as those in the first embodiment are given the same reference numerals as those in the first embodiment, and the description thereof is omitted. explain.
The second embodiment is different from the first embodiment in that the projecting shaft portion 4408 is a separate member from the valve shaft 44.
Explaining in detail, the valve shaft 44 includes a coil spring winding shaft portion 4402, a flange portion 52 projecting annularly outward in the radial direction of the coil spring winding shaft portion 4402, and a seal projecting from an inner peripheral portion of the flange portion 52 The sealing member mounting shaft 4404 inserted into the inner peripheral portion of the member 46 and the press-fitting shaft 4406 projecting from the sealing member mounting shaft 4404 and press-fitted into the valve shaft press-in hole 4804 are arranged in that order. It does not have the protruding shaft portion 4408.
A projecting shaft portion press-fitting hole 4412 is formed at an end portion of the press-fitting shaft portion 4406 located opposite to the seal member mounting shaft portion 4404.
The protruding shaft portion 50 includes a protruding shaft portion main body 5002, and a small diameter shaft portion 5004 protruding from the protruding shaft portion main body 5002 and having a smaller outer diameter than the protruding shaft portion main body 5002.
In the protruding shaft portion 50, the small diameter shaft portion 5004 is press-fit into the protruding shaft portion press-fitting hole 4412 and disposed.
The same effect as that of the first embodiment can be obtained also by such a second embodiment.

（第３の実施の形態）
次に第３の実施の形態のポペットバルブ２２について説明する。
第３の実施の形態では、整流部４８と突出軸部５０とが一体に形成されている点が第１、第２の実施の形態と異なっている。
詳細に説明すると、整流部４８に設けられた弁軸圧入用孔４８０４は整流部４８を貫通しておらず、シール部材４６側のみに開口している。
弁軸４４は、コイルスプリング巻装用軸部４４０２と、コイルスプリング巻装用軸部４４０２の半径方向外側に環状に突出するフランジ部５２と、フランジ部５２の内周部から突出しシール部材４６の内周部に挿入されるシール部材装着用軸部４４０４と、シール部材装着用軸部４４０４から突出し弁軸圧入用孔４８０４に圧入される圧入用軸部４４０６とがそれらの順に並べられて構成されている。
シール部材装着用軸部４４０４にシール部材４６が装着され、圧入用軸部４４０６が弁軸圧入用孔４８０４に圧入されることでポペットバルブ２２が構成されている。
このような第３の実施の形態によっても第１、第２の実施の形態と同様の効果が奏される。 Third Embodiment
Next, the poppet valve 22 of the third embodiment will be described.
The third embodiment is different from the first and second embodiments in that the rectifying portion 48 and the protruding shaft portion 50 are integrally formed.
Describing in detail, the valve shaft press-fit hole 4804 provided in the flow straightening unit 48 does not penetrate the flow straightening unit 48 and opens only to the seal member 46 side.
The valve shaft 44 has a coil spring winding shaft portion 4402, a flange portion 52 that protrudes annularly outward in the radial direction of the coil spring winding shaft portion 4402, and an inner periphery of a seal member 46 that protrudes from the inner peripheral portion of the flange portion 52. A sealing member mounting shaft 4404 inserted into the housing and a press-fitting shaft 4406 projecting from the sealing member mounting shaft 4404 and press-fitted into the valve shaft press-in hole 4804 are arranged in that order. .
The poppet valve 22 is configured by mounting the seal member 46 on the seal member mounting shaft portion 4404 and pressing the shaft portion 4406 for press-fitting into the hole 4804 for press-fitting the valve shaft.
The same effects as those of the first and second embodiments can be achieved by such a third embodiment.

なお、本実施の形態では、ポペットバルブ２２が、締結具を介して係脱される雌型カップリング１２と雄型カップリング１４に適用された場合について説明したが、雌型カップリング１２と雄型カップリング１４はカップリングナットで係脱されるものであってもよく、本発明のポペットバルブは、従来公知の様々の係脱方式のカップリングに採用可能である。   In the present embodiment, although the case where the poppet valve 22 is applied to the female coupling 12 and the male coupling 14 which are engaged and disengaged through the fasteners has been described, the female coupling 12 and the male are described. The mold coupling 14 may be engaged / disengaged with a coupling nut, and the poppet valve of the present invention can be employed for various engagement / disengagement type couplings known in the prior art.

２２ ポペットバルブ
４４ 弁軸
４４０２ コイルスプリング巻装用軸部
４４０４ シール部材装着用軸部
４４０６ 圧入用軸部
４４０８ 突出軸部用軸部
４４１２ 突出軸部圧入用孔
４６ シール部材
４８ 整流部
４８０４ 弁軸圧入用孔
５０ 突出軸部
５２ フランジ部 22 poppet valve 44 valve shaft 4402 coil spring winding shaft portion 4404 seal member attaching shaft portion 4406 press-fit shaft portion 4408 projecting shaft portion shaft portion 4412 projecting shaft portion press-fitting hole 46 sealing member 48 straightening portion 4804 for valve shaft press-fit Hole 50 Protruding shaft 52 Flange

Claims (4)

弁軸と、前記弁軸に設けられたシール部材と、前記シール部材に隣接して前記弁軸に設けられた整流部と、前記弁軸と同軸上で前記整流部から突出する突出軸部と、前記弁軸に設けられ前記整流部と協働して前記シール部材を挟持するフランジ部とを有するポペットバルブであって、
前記弁軸と前記整流部とは別部材で構成され、
前記フランジ部は前記弁軸に一体形成され、
前記整流部の中心に前記シール部材側に開口する弁軸圧入用孔が設けられ、
前記弁軸圧入用孔に、前記シール部材から突出する前記弁軸の端部が圧入されている、
ことを特徴とするポペットバルブ。 A valve shaft, a seal member provided on the valve shaft, a straightening unit provided on the valve shaft adjacent to the seal member, and a protruding shaft unit coaxial with the valve shaft and protruding from the straightening unit A poppet valve having a flange portion provided on the valve shaft and sandwiching the seal member in cooperation with the flow straightening portion,
The valve shaft and the rectifying unit are configured as separate members,
The flange portion is integrally formed on the valve shaft,
A valve shaft press-fit hole is provided at the center of the flow straightening unit and is open to the seal member
An end portion of the valve stem protruding from the seal member is press-fit into the valve shaft press-fit hole.
A poppet valve characterized by 前記弁軸圧入用孔は、前記整流部の中心に貫通して設けられ、
前記弁軸は、コイルスプリング巻装用軸部と、前記コイルスプリング巻装用軸部の半径方向外側に環状に突出する前記フランジ部と、前記フランジ部の内周部から突出し前記シール部材の内周部に挿入されるシール部材装着用軸部と、前記シール部材装着用軸部から突出し前記弁軸圧入用孔に圧入される圧入用軸部と、前記圧入用軸部から突出し前記突出軸部を構成する突出軸部用軸部とがそれらの順に並べられて構成されている、
ことを特徴とする請求項１記載のポペットバルブ。 The valve shaft press-fit hole is provided through the center of the straightening unit,
The valve shaft includes a coil spring winding shaft portion, the flange portion annularly projecting outward in the radial direction of the coil spring winding shaft portion, and an inner circumferential portion of the seal member projecting from an inner circumferential portion of the flange portion A seal member mounting shaft portion inserted into the shaft, a press-fit shaft portion projecting from the seal member mounting shaft portion and press-fitted into the valve shaft press-fit hole, and a protruding shaft portion projecting from the press-fit shaft portion And the projecting shaft for the projecting shaft are arranged in that order,
The poppet valve according to claim 1, characterized in that: 前記弁軸圧入用孔は、前記整流部の中心に貫通して設けられ、
前記弁軸は、コイルスプリング巻装用軸部と、前記コイルスプリング巻装用軸部の半径方向外側に環状に突出する前記フランジ部と、前記フランジ部の内周部から突出し前記シール部材の内周部に挿入されるシール部材装着用軸部と、前記シール部材装着用軸部から突出し前記弁軸圧入用孔に圧入される圧入用軸部とがそれらの順に並べられて構成され、
前記シール部材装着用軸部と反対に位置する前記圧入用軸部の端部に突出軸部圧入用孔が形成され、
前記突出軸部は、前記突出軸部圧入用孔に圧入されて配置されている、
ことを特徴とする請求項１記載のポペットバルブ。 The valve shaft press-fit hole is provided through the center of the straightening unit,
The valve shaft includes a coil spring winding shaft portion, the flange portion annularly projecting outward in the radial direction of the coil spring winding shaft portion, and an inner circumferential portion of the seal member projecting from an inner circumferential portion of the flange portion A sealing member mounting shaft portion inserted into the housing and a press-fitting shaft portion protruding from the sealing member mounting shaft portion and press-fitting into the valve shaft press-fitting hole, which are arranged in that order;
A projecting shaft portion press-fitting hole is formed at an end of the press-fitting shaft portion opposite to the seal member mounting shaft portion,
The protruding shaft portion is press-fit and disposed in the protruding shaft portion press-fitting hole,
The poppet valve according to claim 1, characterized in that: 前記弁軸は、コイルスプリング巻装用軸部と、前記コイルスプリング巻装用軸部の半径方向外側に環状に突出する前記フランジ部と、前記フランジ部の内周部から突出し前記シール部材の内周部に挿入されるシール部材装着用軸部と、前記シール部材装着用軸部から突出し前記弁軸圧入用孔に圧入される圧入用軸部とがそれらの順に並べられて構成され、
前記整流部と前記突出軸部とは一体に形成されている、
ことを特徴とする請求項１記載のポペットバルブ。 The valve shaft includes a coil spring winding shaft portion, the flange portion annularly projecting outward in the radial direction of the coil spring winding shaft portion, and an inner circumferential portion of the seal member projecting from an inner circumferential portion of the flange portion A sealing member mounting shaft portion inserted into the housing and a press-fitting shaft portion protruding from the sealing member mounting shaft portion and press-fitting into the valve shaft press-fitting hole, which are arranged in that order;
The straightening unit and the protruding shaft are integrally formed.
The poppet valve according to claim 1, characterized in that:
JP2018001716A 2018-01-10 2018-01-10 poppet valve Active JP7119376B2 (en)

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Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002333070A (en) * 2001-05-10 2002-11-22 Kyoshin Engineering:Kk Valve device
WO2017099228A1 (en) * 2015-12-11 2017-06-15 三菱電線工業株式会社 Valve body and valve structure and joint member in which said valve body is used

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JP2011158052A (en) 2010-02-02 2011-08-18 Keihin Corp Pressure reducing valve and seat surface forming method for valve element

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002333070A (en) * 2001-05-10 2002-11-22 Kyoshin Engineering:Kk Valve device
WO2017099228A1 (en) * 2015-12-11 2017-06-15 三菱電線工業株式会社 Valve body and valve structure and joint member in which said valve body is used

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