WO2015137027A1 - Pipe joint - Google Patents

Pipe joint Download PDF

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Publication number
WO2015137027A1
WO2015137027A1 PCT/JP2015/053470 JP2015053470W WO2015137027A1 WO 2015137027 A1 WO2015137027 A1 WO 2015137027A1 JP 2015053470 W JP2015053470 W JP 2015053470W WO 2015137027 A1 WO2015137027 A1 WO 2015137027A1
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WO
WIPO (PCT)
Prior art keywords
valve
male member
male
female
pipe joint
Prior art date
Application number
PCT/JP2015/053470
Other languages
French (fr)
Japanese (ja)
Inventor
昌史 林
秀一 嵯峨
浅里　信之
Original Assignee
ニッタ株式会社
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by ニッタ株式会社 filed Critical ニッタ株式会社
Priority to JP2016507399A priority Critical patent/JP6236521B2/en
Publication of WO2015137027A1 publication Critical patent/WO2015137027A1/en

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    • 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
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L37/00—Couplings of the quick-acting type
    • F16L37/28—Couplings of the quick-acting type with fluid cut-off means
    • F16L37/30—Couplings of the quick-acting type with fluid cut-off means with fluid cut-off means in each of two pipe-end fittings
    • F16L37/32—Couplings of the quick-acting type with fluid cut-off means with fluid cut-off means in each of two pipe-end fittings at least one of two lift valves being opened automatically when the coupling is applied
    • F16L37/34—Couplings of the quick-acting type with fluid cut-off means with fluid cut-off means in each of two pipe-end fittings at least one of two lift valves being opened automatically when the coupling is applied at least one of the lift valves being of the sleeve type, i.e. a sleeve is telescoped over an inner cylindrical wall

Definitions

  • the embodiment of the present invention relates to a pipe joint.
  • a pipe joint that connects a pair of male and female joint members and connects pipes has a valve for opening and closing a flow path inside the tubular joint member.
  • both joint members have a seal material, which is an elastic body made of rubber or the like, in the valve, so that no fluid leaks even when connected and disconnected.
  • FIG. 4 is a diagram showing a configuration of a pipe joint having a conventional valve.
  • FIG. 4A is a cross-sectional view of a male joint member (male member).
  • FIG. 4B is a cross-sectional view of a female joint member (female member).
  • FIG. 4C is a perspective view of the valve 450 and the valve stop 411.
  • FIG. 4D is a diagram illustrating a state in which the female member and the male member are coupled to each other.
  • the male member 410 includes a male member main body 415, an adapter 416, an adapter O-ring 417, a valve stop 411, a valve spring 412, and a valve 450.
  • the valve 450 includes a valve main body 413 and a valve seal 414.
  • the valve seal 414 is made of an elastic material such as rubber and is attached to the tubular valve body 413.
  • the valve 450 is inserted into the male member body 415 while being pressed by a valve spring 412 attached to the valve stop 411, and is fixed by an adapter 416 equipped with an adapter O-ring 417.
  • the tubular valve stop 411 has a plurality of holes 418 for fluid movement and a hole 419 that serves as a guide when the valve 450 moves.
  • a female member 420 which is a female joint member shown in FIG. 4B includes a valve stop 421, a valve spring 422, a valve 460, a valve seal closing member (hereinafter referred to as a pintle) 423, and a snap ring 426.
  • the valve 460 includes a valve main body 425, a valve seal 424, and a V seal 429.
  • the V seal 429 is made of an elastic material such as rubber and is attached to the valve main body 425.
  • the valve 460 is in contact with the pintle 423 while being pressed by a valve spring 422 attached to the valve stop 421.
  • the pintle 423 is fixed to the valve stop 421 by a snap ring 426.
  • the valve stop 421 is fixed by a female member main body 427 and an adapter 428.
  • FIG. 4D is a view showing a state in which the female member 420 and the male member 410 are coupled to each other.
  • the elastic force of the pintle 423 of the female member 420, the valve seal 414 of the male member 410, and the valve spring 412 of the male member 410 is brought into contact with the V seal 425 to prevent fluid leakage in the flow path.
  • the distal end portion of the male member main body 415 and the valve seal 424 of the female member 420 are brought into contact with each other by the elastic force of the valve spring 422 to prevent leakage of fluid in the flow path. Even when the female member 420 and the male member 410 are separated, fluid leakage is prevented by the three seal members until the female member 420 and the male member 410 are completely separated.
  • valve 450 on the male member side when the female member 420 and the male member 410 are attached / detached is performed using the hole 419 of the valve stop 411 as a guide. May incline and elastically contact the male member main body 415 to cause leakage. Since it is necessary to lengthen the valve stop 411 in order to prevent leakage, the pressure loss increases.
  • the pipe joint according to the embodiment is a pipe joint in a state in which the cylindrical attachment / detachment portion of the male member is inserted and fitted into the female member, and the male member and the female member are elastic due to the elasticity of the spring when they are alone.
  • a valve for holding the internal fluid in a leak-proof state and in the process of inserting the cylindrical attachment / detachment portion of the male member into the hole of the female member and completing the fitting, the valve of the male member and the valve
  • the female member abuts in a state preventing leakage of internal fluid, and the valve of the female member and the male member contact in a state of preventing leakage of internal fluid, and the valve of the male member moves in the axial direction.
  • the inner peripheral surface of the male member has a shape to serve as a guide.
  • the pressure loss is reduced by changing the valve shape and eliminating the valve stop.
  • the operating pressure can be reduced.
  • the flow rate increases at the same pressure.
  • the joint weight is reduced by using a part of the joint material as a resin.
  • the partial cross section figure of the male type member structure of the pipe joint of an embodiment The partial sectional view of the female member simple substance of the pipe joint of an embodiment. The elements on larger scale of the male member structure of the pipe joint of embodiment.
  • FIG. 1A is a partial cross-sectional view of a male joint member (hereinafter referred to as a male member).
  • FIG. 1B is a partial cross-sectional view of a female joint member (hereinafter referred to as a female member).
  • FIG. 1C is an enlarged view of a portion where the valve seal 113 contacts the step 310 at the tip of the detachable component 114 of the male member 110.
  • the male member 110 has a pipe attachment part 115, a detachable part 114, a valve spring 111, a valve 220, a seal material 116, a step portion 311 and the like.
  • the male side valve 220 has a valve seal 113 and a valve body 112 which are elastic bodies such as rubber.
  • the valve 220 is mounted inside the pipe mounting part 115 in a state where the valve spring 111 is compressed, and the detachable part 114 is mounted.
  • the pipe attachment part 115 and the attachment / detachment part 114 are attached by a pipe attachment part screw 118 and an attachment / detachment part screw 119.
  • the end of the detachable component 114 on the female member side has an opening 117 having an inner diameter smaller than the outer diameter of the valve main body 112 and the valve seal 113, and has a step 310 at the tip of the male member.
  • the valve seal 113 of the valve 220 abuts against the step 310 at the tip of the male member in a leak-proof state by the elastic force of the valve spring 111.
  • FIG. 1B is a cross-sectional view of the female member 120 of the female type.
  • the female member 120 includes an attachment / detachment component 129, a pipe attachment component 128, a sealing O-ring 132, operating members (hereinafter referred to as retainers) 130 and 131, a sealing O-ring 133, and a valve seal closing member (hereinafter referred to as pintle). ) 127, a valve stop 121, a snap ring 123, a valve spring 122, a valve 140, and an insertion hole for a male member 110 (not shown).
  • the female valve 140 includes a valve main body 124, a V seal 125, and a valve seal 126.
  • the valve 140 is in contact with the pintle 423 while being pressed by a valve spring 422 attached to the valve stop 421.
  • the pintle 423 is fixed to the valve stop 421 by a snap ring 426.
  • the valve stop 421 is fixed by a female member main body 427 and an adapter 428.
  • the valve 140 abuts against the back side of the pintle 127 in a leak-proof state by the elastic force of the valve spring 122.
  • the valve main body 124 and the detachable component 129 are in a leakage prevention state by the V seal 125.
  • FIG. 2 is a view showing the shape of the valve 220 of the male member 110 and is a view showing a state in which the valve seal 113 is attached to the tubular valve body 112.
  • 2A is a perspective view of the valve body 112
  • FIG. 2B is a view as seen from the axial direction opposite to the valve seal 113 (back view when the valve seal 113 side is the front), and
  • FIG. It is the figure (plan view) seen from the vertical direction.
  • the male valve 220 is formed by integrally molding the valve main body 112 with a resin material and has at least three or more fins 211 that are guides when the valve is moved, so that the valve 220 is less likely to be inclined during movement.
  • the plurality of fins 211 are preferably equiangular on the axis of the valve 220.
  • FIG. 2 shows a cube in which a plus shape divided by 90 degrees into four equal parts is formed in the longitudinal direction, it is not limited to this. For example, it may be a fin composed of three or six equal parts.
  • FIG. 3 is a connection diagram when the female member 120 and the male member 110 of the embodiment are combined.
  • the cylindrical attachment / detachment portion (from the right end of FIG. 1A to the left end of the groove 311 in the center of the male member) is inserted toward the insertion hole of the female member 120, a plurality of male valves 220 are inserted.
  • the fin 211 can move smoothly with the inner peripheral surface of the male member 110 as a guide.
  • the tip of the male member 110 comes into contact with the position of the valve seal 126 of the female member 120, the valve seal 113 of the male valve 220 simultaneously contacts the pintle 127 of the female member 120. Further, when the male member 110 moves to the right side in FIG.
  • valve 220 On the male member 110 side, the valve 220 is pushed by the pintle 127, the valve spring 111 is contracted, and the valve seal 113 which has been kept airtight is male.
  • a flow path is formed in the male mold member 120 away from the step 310 at the tip of the mold member.
  • the female valve 140 is pushed by the male member 110, the valve spring 122 contracts, and the valve seal 126 that has been kept airtight is separated from the pintle 127, so that the female member A flow path is also formed in 120.
  • the pintle 127 of the female member 120 and the valve seal 113 of the male member 110 are in contact with each other in a leak-proof state by the elastic force of the valve spring 111 of the male member 110, Prevent fluid leakage.
  • the distal end of the male member main body 114 and the valve seal 126 of the female member 120 abut against each other in a leak-proof state by the elastic force of the valve spring 122, and together with the V seal 125 and the sealing O-ring 132, leakage of fluid in the flow path. To prevent.
  • the tip of the male member 110 abuts to the position of the valve seal 126 of the female member 120 and the valve spring 122 contracts, and the male member of the male member 110
  • the valve spring 111 contracts in contact with the main body 114 and the pintle 127, a flow path between the male member 110 and the female member 120 is formed. Then, when the coupling is released, the male member 110 and the female member 120 return to the original leakage prevention state.
  • the male member 110 and the female member 120 are fixed to each other by fitting retainers 130 and 131 (resin operation members), which are resin parts, into the groove 311 at the center of the male member 110, and forming the retainer. This is done by pressing with a spring that has been made.
  • retainers 130 and 131 resin operation members
  • the flow path area is large and the pressure loss can be reduced as compared with the conventional shape in which the valve stop 411 needs to be used.
  • the valve of this embodiment can also be used in the configuration of the male member shown in FIG. 1A.
  • the material of the valve body 112 may be a metal that can be integrally formed by injection molding powder metallurgy or the like. Further, the fin 211 may be divided into separate parts and molded into one part by bonding, welding, or the like.
  • Valve 111 Valve Spring 112 Valve Body 113 Valve Seal 117 Opening 120
  • Female Member 121
  • Valve Stop 122
  • Valve Spring 124
  • Valve Body 125
  • V Seal 126
  • Valve Seal 127
  • Valve Seal Closure Member (Pintle) 128 Piping mounting parts 130, 131 Operation member (Retainer) 135
  • Valve 140 Valve 211 Fin 220 Valve 310 Step at the tip of the male member 311 Groove at the center of the male member

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Quick-Acting Or Multi-Walled Pipe Joints (AREA)

Abstract

Provided is a pipe joint, which connects pipes by connecting a pair of male and female joint members, wherein pressure loss is small due to modification of the valve configuration. The pipe joint of an embodiment is a pipe joint of a form in which the cylindrical attaching/detaching section of a male member is inserted in and fitted together with a female member. The male member and the female member are equipped with a valve for holding, by means of the elasticity of a spring, the internal fluid in a leak-proof state when separate. In the process of inserting the cylindrical attaching/detaching section of the male member in the hole of the female member and completing the engagement, the valve of the male member abuts against the female member in a state that prevents leakage of the internal fluid and the valve of the female member abuts against the male member in a state that prevents leakage of the internal fluid. The valve of the male member has a shape such that the inner circumferential surface of the male member serves as a guide when moving in the axial direction.

Description

管継手Pipe fitting
　本発明の実施形態は、管継手に関するものである。 The embodiment of the present invention relates to a pipe joint.
　雄型及び雌型の継手部材の一対を接続して、配管を接続する管継手において、筒状の継手部材の内部に流路の開閉を行うためのバルブ有し、前記雄型、雌型の継手部材を着脱する際に内部の流体が漏れない機構のものがある。例えば、両継手部材共に、バルブにゴム等の材質の弾性体であるシール材を有し、接続及び脱離時も流体の漏れがない機構である。 A pipe joint that connects a pair of male and female joint members and connects pipes has a valve for opening and closing a flow path inside the tubular joint member. There is a mechanism that prevents internal fluid from leaking when the joint member is attached or detached. For example, both joint members have a seal material, which is an elastic body made of rubber or the like, in the valve, so that no fluid leaks even when connected and disconnected.
　図４は、従来のバルブを有する管継手の構成を示す図である。図４Ａは、雄型の継手部材（雄型部材）の断面図である。図４Ｂは、雌型の継手部材（雌型部材）の断面図である。図４Ｃは、バルブ４５０とバルブストップ４１１の斜視図である。図４Ｄは、雌型部材と雄型部材を結合した状態を示した図である。 FIG. 4 is a diagram showing a configuration of a pipe joint having a conventional valve. FIG. 4A is a cross-sectional view of a male joint member (male member). FIG. 4B is a cross-sectional view of a female joint member (female member). FIG. 4C is a perspective view of the valve 450 and the valve stop 411. FIG. 4D is a diagram illustrating a state in which the female member and the male member are coupled to each other.
　図４Ａ，図４Ｃにおいて、雄型部材４１０は、雄型部材本体４１５、アダプタ４１６、アダプタＯリング４１７、バルブストップ４１１、バルブスプリング４１２、バルブ４５０を有する。バルブ４５０はバルブ本体４１３とバルブシール４１４とを有する。バルブシール４１４は、材質がゴム等の弾性体であって、筒状のバルブ本体４１３に取り付けられる。バルブ４５０は、バルブストップ４１１に取り付けられたバルブスプリング４１２で押さえられた状態で、雄型部材本体４１５に挿入され、アダプタＯリング４１７を装着したアダプタ４１６で固定される。そして、図４Ｃに示すように筒状のバルブストップ４１１は、流体移動用の複数の孔４１８と、バルブ４５０の移動の際のガイドとなる孔４１９を有する。 4A and 4C, the male member 410 includes a male member main body 415, an adapter 416, an adapter O-ring 417, a valve stop 411, a valve spring 412, and a valve 450. The valve 450 includes a valve main body 413 and a valve seal 414. The valve seal 414 is made of an elastic material such as rubber and is attached to the tubular valve body 413. The valve 450 is inserted into the male member body 415 while being pressed by a valve spring 412 attached to the valve stop 411, and is fixed by an adapter 416 equipped with an adapter O-ring 417. As shown in FIG. 4C, the tubular valve stop 411 has a plurality of holes 418 for fluid movement and a hole 419 that serves as a guide when the valve 450 moves.
　一方、図４Ｂに示す雌型の継手部材である雌型部材４２０は、バルブストップ４２１、バルブスプリング４２２、バルブ４６０、バルブシール閉塞部材（以下、ピントルと称する）４２３、スナップリング４２６を有する。バルブ４６０は、バルブ本体４２５、バルブシール４２４、Ｖシール４２９を有し、Ｖシール４２９は材質がゴム等の弾性体で、バルブ本体４２５に取り付けられる。バルブ４６０は、バルブストップ４２１に取り付けられたバルブスプリング４２２で押さえられた状態で、ピントル４２３に当接している。ピントル４２３は、スナップリング４２６によりバルブストップ４２１に固定される。バルブストップ４２１は、雌型部材本体４２７とアダプタ４２８で固定される。 On the other hand, a female member 420 which is a female joint member shown in FIG. 4B includes a valve stop 421, a valve spring 422, a valve 460, a valve seal closing member (hereinafter referred to as a pintle) 423, and a snap ring 426. The valve 460 includes a valve main body 425, a valve seal 424, and a V seal 429. The V seal 429 is made of an elastic material such as rubber and is attached to the valve main body 425. The valve 460 is in contact with the pintle 423 while being pressed by a valve spring 422 attached to the valve stop 421. The pintle 423 is fixed to the valve stop 421 by a snap ring 426. The valve stop 421 is fixed by a female member main body 427 and an adapter 428.
　図４Ｄは、雌型部材４２０と雄型部材４１０を結合した状態を示した図である。雌型部材４２０のピントル４２３と雄型部材４１０のバルブシール４１４、雄型部材４１０のバルブスプリング４１２の弾性力で当接し、Ｖシール４２５と共に流路内の流体の漏れを防止する。雄型部材本体４１５の先端部と雌型部材４２０のバルブシール４２４は、バルブスプリング４２２の弾性力で当接し、流路内の流体の漏れを防止する。雌型部材４２０と雄型部材４１０を分離する際も、雌型部材４２０と雄型部材４１０が完全に離れるまで、前記３つのシール部材で流体の漏れを防止する。 FIG. 4D is a view showing a state in which the female member 420 and the male member 410 are coupled to each other. The elastic force of the pintle 423 of the female member 420, the valve seal 414 of the male member 410, and the valve spring 412 of the male member 410 is brought into contact with the V seal 425 to prevent fluid leakage in the flow path. The distal end portion of the male member main body 415 and the valve seal 424 of the female member 420 are brought into contact with each other by the elastic force of the valve spring 422 to prevent leakage of fluid in the flow path. Even when the female member 420 and the male member 410 are separated, fluid leakage is prevented by the three seal members until the female member 420 and the male member 410 are completely separated.
　前記雌型部材４２０と雄型部材４１０の着脱時の雄型部材側のバルブ４５０の移動は、バルブストップ４１１の孔４１９をガイドにして行っているため、孔４１９の長さが短いとバルブ４５０が傾斜して雄型部材本体４１５に弾接し、漏れが発生する可能性がある。漏れ防止のためにバルブストップ４１１が長くする必要があるため、圧力損失が大きくなる。 The movement of the valve 450 on the male member side when the female member 420 and the male member 410 are attached / detached is performed using the hole 419 of the valve stop 411 as a guide. May incline and elastically contact the male member main body 415 to cause leakage. Since it is necessary to lengthen the valve stop 411 in order to prevent leakage, the pressure loss increases.
特開２００８－１２８２８５号公報JP 2008-128285 A 特開平１１－１４１７７５号公報JP-A-11-141775
　雄型及び雌型の継手部材の一対を接続して、配管を接続する管継手において、バルブ形状を変更する事で圧力損失が小さい管継手を提供する事である。 To connect a pair of male and female joint members and provide a pipe joint with low pressure loss by changing the valve shape in the pipe joint that connects the pipes.
　実施形態の管継手は、雄型部材の筒状着脱部を雌型部材に挿入して嵌合する様態の管継手であって、前記雄型部材および雌型部材は単体時に、ばねの弾性により内部流体を漏洩防止状態に保持するバルブを具備し、前記雄型部材の筒状着脱部を前記雌型部材の孔に挿入し嵌合が完了する過程において、前記雄型部材の前記バルブと前記雌型部材が内部流体の漏洩防止状態で当接すると共に、雌型部材の前記バルブと前記雄型部材が内部流体の漏洩防止状態で当接し、前記雄型部材の前記バルブは、軸方向に移動する際に前記雄型部材の内周面がガイドとなる形状を有することを特徴とする。 The pipe joint according to the embodiment is a pipe joint in a state in which the cylindrical attachment / detachment portion of the male member is inserted and fitted into the female member, and the male member and the female member are elastic due to the elasticity of the spring when they are alone. A valve for holding the internal fluid in a leak-proof state, and in the process of inserting the cylindrical attachment / detachment portion of the male member into the hole of the female member and completing the fitting, the valve of the male member and the valve The female member abuts in a state preventing leakage of internal fluid, and the valve of the female member and the male member contact in a state of preventing leakage of internal fluid, and the valve of the male member moves in the axial direction. In doing so, the inner peripheral surface of the male member has a shape to serve as a guide.
　実施形態の管継手によれば、バルブ形状を変更し、バルブストップを無くす事で圧力損失が小さくなる。そして、油圧等の回路中では作動圧力を小さくできる。また、流体輸送の回路では同圧力で流量が大きくなる。更に、継手の材質の一部を樹脂にする事で継手重量が小さくなる。 According to the pipe joint of the embodiment, the pressure loss is reduced by changing the valve shape and eliminating the valve stop. In the circuit such as hydraulic pressure, the operating pressure can be reduced. In the fluid transport circuit, the flow rate increases at the same pressure. Furthermore, the joint weight is reduced by using a part of the joint material as a resin.
実施形態の管継手の雄型部材構造の一部断面図。The partial cross section figure of the male type member structure of the pipe joint of an embodiment. 実施形態の管継手の雌型部材単体の一部断面図。The partial sectional view of the female member simple substance of the pipe joint of an embodiment. 実施形態の管継手の雄型部材構造の部分拡大図。The elements on larger scale of the male member structure of the pipe joint of embodiment. 実施形態の管継手の雄型部材のバルブの斜視図。The perspective view of the valve | bulb of the male member of the pipe joint of embodiment. 実施形態の管継手の雄型部材のバルブの背面図。The rear view of the valve | bulb of the male member of the pipe joint of embodiment. 実施形態の管継手の雄型部材のバルブの平面図。The top view of the valve | bulb of the male member of the pipe joint of embodiment. 実施形態の管継手の雌型部材と雄型部材の嵌合状態の一部断面図。The partial cross section figure of the fitting state of the female member and male member of the pipe joint of an embodiment. 従来技術の雄型部材の断面図。Sectional drawing of the male member of a prior art. 従来技術の雌型部材の断面図。Sectional drawing of the female member of a prior art. 従来技術のバルブとバルブストップの斜視図。The perspective view of the valve | bulb and valve stop of a prior art. 従来技術の雄型部材と雌型部材の断面図。Sectional drawing of the male type member and female type member of a prior art.
　以下、図面を参照して本発明の実施形態について説明する。
　図１は、実施形態の管継手の構成を示す図である。図１Ａは、雄型の継手部材（以下、雄型部材と称する）の一部断面図である。図１Ｂは、雌型の継手部材（以下、雌型部材と称する）の一部断面図である。図１Ｃは、雄型部材１１０の有する着脱部品１１４の先端の段３１０にバルブシール１１３が当接する部分の拡大図である。 Hereinafter, embodiments of the present invention will be described with reference to the drawings.
Drawing 1 is a figure showing the composition of the pipe joint of an embodiment. FIG. 1A is a partial cross-sectional view of a male joint member (hereinafter referred to as a male member). FIG. 1B is a partial cross-sectional view of a female joint member (hereinafter referred to as a female member). FIG. 1C is an enlarged view of a portion where the valve seal 113 contacts the step 310 at the tip of the detachable component 114 of the male member 110.
　図１Ａ，図１Ｃにおいて、雄型部材１１０は、配管取付部品１１５、着脱部品１１４、バルブスプリング１１１、バルブ２２０、シール材１１６、段部３１１などを有している。雄側のバルブ２２０は、ゴムなどの弾性体であるバルブシール１１３とバルブ本体１１２を有している。バルブ２２０は、配管取付部品１１５に、バルブスプリング１１１を圧縮させた状態で内部に装着し、着脱部品１１４を取り付けている。配管取付部品１１５と着脱部品１１４は、配管取付部品のねじ１１８と着脱部品のねじ１１９にて取り付けられている。着脱部品１１４の雌型部材側の端部には、バルブ本体１１２及びバルブシール１１３の外径より内径が小さい開口部１１７を有し、雄型部材先端の段３１０を有する。そして、バルブ２２０のバルブシール１１３は、バルブスプリング１１１の弾性力により雄型部材先端の段３１０に漏洩防止状態で当接する。 1A and 1C, the male member 110 has a pipe attachment part 115, a detachable part 114, a valve spring 111, a valve 220, a seal material 116, a step portion 311 and the like. The male side valve 220 has a valve seal 113 and a valve body 112 which are elastic bodies such as rubber. The valve 220 is mounted inside the pipe mounting part 115 in a state where the valve spring 111 is compressed, and the detachable part 114 is mounted. The pipe attachment part 115 and the attachment / detachment part 114 are attached by a pipe attachment part screw 118 and an attachment / detachment part screw 119. The end of the detachable component 114 on the female member side has an opening 117 having an inner diameter smaller than the outer diameter of the valve main body 112 and the valve seal 113, and has a step 310 at the tip of the male member. The valve seal 113 of the valve 220 abuts against the step 310 at the tip of the male member in a leak-proof state by the elastic force of the valve spring 111.
　図１Ｂは、雌型の雌型部材１２０の断面図である。雌型部材１２０は、着脱部品１２９、配管取付部品１２８、シール用Ｏリング１３２、操作部材（以下、リテーナと称する）１３０、１３１、シール用Ｏリング１３３、バルブシール閉塞部材（以下、ピントルと称する）１２７、バルブストップ１２１、スナップリング１２３、バルブスプリング１２２、バルブ１４０、内部に図示しない雄型部材１１０の挿入孔を有する。 FIG. 1B is a cross-sectional view of the female member 120 of the female type. The female member 120 includes an attachment / detachment component 129, a pipe attachment component 128, a sealing O-ring 132, operating members (hereinafter referred to as retainers) 130 and 131, a sealing O-ring 133, and a valve seal closing member (hereinafter referred to as pintle). ) 127, a valve stop 121, a snap ring 123, a valve spring 122, a valve 140, and an insertion hole for a male member 110 (not shown).
　雌側のバルブ１４０は、バルブ本体１２４、Ｖシール１２５、バルブシール１２６を有する。バルブ１４０は、バルブストップ４２１に取り付けられたバルブスプリング４２２で押さえられた状態で、ピントル４２３に当接している。ピントル４２３は、スナップリング４２６によりバルブストップ４２１に固定される。バルブストップ４２１は、雌型部材本体４２７とアダプタ４２８で固定される。バルブ１４０は、バルブスプリング１２２の弾性力によりピントル１２７の裏側に漏洩防止状態で当接する。バルブ本体１２４と着脱部品１２９は、Ｖシール１２５により漏洩防止状態となる。 The female valve 140 includes a valve main body 124, a V seal 125, and a valve seal 126. The valve 140 is in contact with the pintle 423 while being pressed by a valve spring 422 attached to the valve stop 421. The pintle 423 is fixed to the valve stop 421 by a snap ring 426. The valve stop 421 is fixed by a female member main body 427 and an adapter 428. The valve 140 abuts against the back side of the pintle 127 in a leak-proof state by the elastic force of the valve spring 122. The valve main body 124 and the detachable component 129 are in a leakage prevention state by the V seal 125.
　図２は、雄型部材１１０のバルブ２２０の形状を示す図で、筒状のバルブ本体１１２にバルブシール１１３を取り付けた状態の図である。図２Ａは前記バルブ本体１１２の斜視図、図２Ｂはバルブシール１１３と反対側の軸方向から見た図（バルブシール１１３側を正面とした場合の背面図）であり、図２Ｃは軸に対して垂直方向から見た図（平面図）である。 FIG. 2 is a view showing the shape of the valve 220 of the male member 110 and is a view showing a state in which the valve seal 113 is attached to the tubular valve body 112. 2A is a perspective view of the valve body 112, FIG. 2B is a view as seen from the axial direction opposite to the valve seal 113 (back view when the valve seal 113 side is the front), and FIG. It is the figure (plan view) seen from the vertical direction.
　雄側のバルブ２２０は、バルブ本体１１２を樹脂材質で一体成形し、バルブ移動時のガイドである少なくとも３枚以上の複数のフィン２１１を有する事で、移動時にバルブ２２０の傾斜が発生しにくい。複数のフィン２１１は、バルブ２２０の軸上で等角度にあるのが望ましい。図２では、９０度ずつ４等分したプラス形状が長手方向に形成された立方体を示したが、これに限定されるものではない。例えば、３等分乃至６等分で構成したフィンであっても良い。バルブ本体１１２を樹脂成形することで、フィン２１１の形状が比較的自由な形状とすることができ、圧力損失も小さくなる。 The male valve 220 is formed by integrally molding the valve main body 112 with a resin material and has at least three or more fins 211 that are guides when the valve is moved, so that the valve 220 is less likely to be inclined during movement. The plurality of fins 211 are preferably equiangular on the axis of the valve 220. Although FIG. 2 shows a cube in which a plus shape divided by 90 degrees into four equal parts is formed in the longitudinal direction, it is not limited to this. For example, it may be a fin composed of three or six equal parts. By resin-molding the valve body 112, the shape of the fin 211 can be made relatively free, and the pressure loss is also reduced.
　図３は、実施形態の雌型部材１２０と雄型部材１１０を結合した時の接続図である。
　雌型部材１２０の挿入孔に向けて、雄型部材１１０の筒状着脱部（図１Ａの右端から雄型部材中央部の溝３１１の左端まで）を挿入するとき、雄側のバルブ２２０の複数のフィン２１１が雄型部材１１０の内周面をガイドにして、スムーズに移動することができる。そして、雄型部材１１０の先端部が雌型部材１２０のバルブシール１２６の位置まで当接すると、同時に雄側のバルブ２２０のバルブシール１１３が雌型部材１２０のピントル１２７に当接する。さらに、雄型部材１１０が図３の右側に移動すると、雄型部材１１０側は、バルブ２２０がピントル１２７に押されて、バルブスプリング１１１が縮み、気密性を保持していたバルブシール１１３が雄型部材先端の段３１０から離れて、雄型部材１２０内に流路が形成される。 FIG. 3 is a connection diagram when the female member 120 and the male member 110 of the embodiment are combined.
When the cylindrical attachment / detachment portion (from the right end of FIG. 1A to the left end of the groove 311 in the center of the male member) is inserted toward the insertion hole of the female member 120, a plurality of male valves 220 are inserted. The fin 211 can move smoothly with the inner peripheral surface of the male member 110 as a guide. When the tip of the male member 110 comes into contact with the position of the valve seal 126 of the female member 120, the valve seal 113 of the male valve 220 simultaneously contacts the pintle 127 of the female member 120. Further, when the male member 110 moves to the right side in FIG. 3, on the male member 110 side, the valve 220 is pushed by the pintle 127, the valve spring 111 is contracted, and the valve seal 113 which has been kept airtight is male. A flow path is formed in the male mold member 120 away from the step 310 at the tip of the mold member.
　一方、雌型部材１２０側は、雌側のバルブ１４０が雄型部材１１０に押されて、バルブスプリング１２２が縮み、気密性を保持していたバルブシール１２６がピントル１２７から離れて、雌型部材１２０内にも流路が形成される。 On the other hand, on the female member 120 side, the female valve 140 is pushed by the male member 110, the valve spring 122 contracts, and the valve seal 126 that has been kept airtight is separated from the pintle 127, so that the female member A flow path is also formed in 120.
　このように本実施形態によれば、雌型部材１２０のピントル１２７と雄型部材１１０のバルブシール１１３は、雄型部材１１０のバルブスプリング１１１の弾性力により漏洩防止状態で当接し、流路内の流体の漏れを防止する。雄型部材本体１１４の先端部と雌型部材１２０のバルブシール１２６は、バルブスプリング１２２の弾性力により漏洩防止状態で当接し、Ｖシール１２５及びシール用Ｏリング１３２と共に流路内の流体の漏れを防止する。 As described above, according to the present embodiment, the pintle 127 of the female member 120 and the valve seal 113 of the male member 110 are in contact with each other in a leak-proof state by the elastic force of the valve spring 111 of the male member 110, Prevent fluid leakage. The distal end of the male member main body 114 and the valve seal 126 of the female member 120 abut against each other in a leak-proof state by the elastic force of the valve spring 122, and together with the V seal 125 and the sealing O-ring 132, leakage of fluid in the flow path. To prevent.
　雄型部材１１０と雌型部材１２０の結合時には、雄型部材１１０の先端部が雌型部材１２０のバルブシール１２６の位置まで当接してバルブスプリング１２２が縮むと共に、雄型部材１１０の雄型部材本体１１４とピントル１２７に当接してバルブスプリング１１１が縮むことにより、雄型部材１１０と雌型部材１２０間の流路が形成されることになる。そして、その結合を解除すると、雄型部材１１０と雌型部材１２０は元の漏洩防止状態に戻る。 When the male member 110 and the female member 120 are coupled, the tip of the male member 110 abuts to the position of the valve seal 126 of the female member 120 and the valve spring 122 contracts, and the male member of the male member 110 When the valve spring 111 contracts in contact with the main body 114 and the pintle 127, a flow path between the male member 110 and the female member 120 is formed. Then, when the coupling is released, the male member 110 and the female member 120 return to the original leakage prevention state.
　なお、雄型部材１１０と雌型部材１２０の固定は、樹脂製の部品であるリテーナ１３０，１３１（樹脂製操作部材）を雄型部材１１０の中央部の溝３１１に嵌合し、リテーナに形成されたばねで押し付けることにより行われる。
　実施形態の管継手の形状によれば、バルブストップ４１１を使用する必要がある従来の形状と比較すると流路面積が大きく、圧力損失が小さくすることができる。 The male member 110 and the female member 120 are fixed to each other by fitting retainers 130 and 131 (resin operation members), which are resin parts, into the groove 311 at the center of the male member 110, and forming the retainer. This is done by pressing with a spring that has been made.
According to the shape of the pipe joint of the embodiment, the flow path area is large and the pressure loss can be reduced as compared with the conventional shape in which the valve stop 411 needs to be used.
（変形例）
　本実施形態のバルブを、図１Ａに示す雄型部材の構成でも使用可能である。また、バルブ本体１１２の材質は、射出成形粉末冶金などで一体成形可能な金属でも良い。さらに、フィン２１１と別部品に分けて成型し、接着、溶着等で１つの部品にしてもよい。 (Modification)
The valve of this embodiment can also be used in the configuration of the male member shown in FIG. 1A. The material of the valve body 112 may be a metal that can be integrally formed by injection molding powder metallurgy or the like. Further, the fin 211 may be divided into separate parts and molded into one part by bonding, welding, or the like.
　本発明のいくつかの実施形態を説明したが、これらの実施形態は、例として提示したものであり、発明の範囲を限定することは意図していない。これら新規な実施形態は、その他の様々な形態で実施されることが可能であり、発明の要旨を逸脱しない範囲で、種々の省略、置き換え、変更を行うことができる。これら実施形態やその変形は、発明の範囲や要旨に含まれるとともに、特許請求の範囲に記載された発明とその均等の範囲に含まれる。 Although several embodiments of the present invention have been described, these embodiments are presented as examples and are not intended to limit the scope of the invention. These novel embodiments can be implemented in various other forms, and various omissions, replacements, and changes can be made without departing from the scope of the invention. These embodiments and modifications thereof are included in the scope and gist of the invention, and are included in the invention described in the claims and the equivalents thereof.
　　１１０　雄型部材
　　１１１　バルブスプリング
　　１１２　バルブ本体
　　１１３　バルブシール
　　１１７　開口部
　　１２０　雌型部材
　　１２１　バルブストップ
　　１２２　バルブスプリング
　　１２４　バルブ本体
　　１２５　Ｖシール
　　１２６　バルブシール
　　１２７　バルブシール閉塞部材（ピントル）
　　１２８　配管取付部品
　　１３０、１３１　操作部材（リテーナ）
　　１３５　バルブ
　　１４０　バルブ
　　２１１　フィン
　　２２０　バルブ
　　３１０　雄型部材先端の段
　　３１１　雄型部材中央部の溝 110 Male Member 111 Valve Spring 112 Valve Body 113 Valve Seal 117 Opening 120 Female Member 121 Valve Stop 122 Valve Spring 124 Valve Body 125 V Seal 126 Valve Seal 127 Valve Seal Closure Member (Pintle)
128 Piping mounting parts 130, 131 Operation member (Retainer)
135 Valve 140 Valve 211 Fin 220 Valve 310 Step at the tip of the male member 311 Groove at the center of the male member

Claims (4)

  1. 　雄型部材の筒状着脱部を雌型部材に挿入して嵌合する様態の管継手であって、
    　前記雄型部材および雌型部材は単体時に、ばねの弾性により内部流体を漏洩防止状態に保持するバルブを具備し、
    　前記雄型部材の筒状着脱部を前記雌型部材の孔に挿入し嵌合が完了する過程において、前記雄型部材の前記バルブと前記雌型部材が内部流体の漏洩防止状態で当接すると共に、雌型部材の前記バルブと前記雄型部材が内部流体の漏洩防止状態で当接し、
    　前記雄型部材の前記バルブは、軸方向に移動する際に前記雄型部材の内周面がガイドとなる形状を有することを特徴とする管継手。     A pipe joint in a state of inserting and fitting the cylindrical attachment / detachment portion of the male member into the female member,
    The male member and the female member are each provided with a valve that holds the internal fluid in a leak-proof state by the elasticity of the spring,
    In the process of inserting the cylindrical attachment / detachment portion of the male member into the hole of the female member and completing the fitting, the valve of the male member and the female member are in contact with each other while preventing leakage of internal fluid. The valve of the female member and the male member are in contact with each other in a state of preventing leakage of internal fluid,
    The valve of the male member has a shape in which the inner peripheral surface of the male member serves as a guide when moving in the axial direction.
  2. 　前記雄型部材の前記バルブの形状が少なくとも３枚以上の複数のフィンを長軸方向に等角度の形状を有する請求項１に記載の管継手。 2. The pipe joint according to claim 1, wherein the valve shape of the male member has an equiangular shape in a major axis direction of at least three or more fins.
  3. 　前記雄型部材の前記バルブがゴムなどの弾性部材と一体成形した樹脂部材から構成される請求項１又は２に記載の管継手。 The pipe joint according to claim 1 or 2, wherein the valve of the male member is made of a resin member integrally formed with an elastic member such as rubber.
  4. 　前記雄型部材の中央部に前記雌型部材の樹脂製操作部材と嵌合する段部を有することを特徴とする請求項１～３のいずれか１項に記載の管継手。 The pipe joint according to any one of claims 1 to 3, further comprising a stepped portion that fits with a resin-made operation member of the female member at a central portion of the male member.
PCT/JP2015/053470 2014-03-13 2015-02-09 Pipe joint WO2015137027A1 (en)

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3035857A (en) * 1957-10-03 1962-05-22 Floyd M Williamson Couplings for fluid pressure lines
JPS6449791U (en) * 1987-09-22 1989-03-28
JPH11257565A (en) * 1998-03-11 1999-09-21 Tatsuno Corp Safety tube fitting
JP2005315420A (en) * 2004-03-31 2005-11-10 Nabtesco Corp Joint

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4819908A (en) * 1988-04-12 1989-04-11 Edwards Industries, Inc. Quick connect fluid coupling
JP4245202B2 (en) * 1998-01-09 2009-03-25 イハラサイエンス株式会社 Coupler with valve
JP4378647B2 (en) * 2006-09-20 2009-12-09 Ｓｍｃ株式会社 Pipe fitting
JP2009144785A (en) * 2007-12-12 2009-07-02 Sanyo Kasei:Kk Pipe fitting for faucet

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3035857A (en) * 1957-10-03 1962-05-22 Floyd M Williamson Couplings for fluid pressure lines
JPS6449791U (en) * 1987-09-22 1989-03-28
JPH11257565A (en) * 1998-03-11 1999-09-21 Tatsuno Corp Safety tube fitting
JP2005315420A (en) * 2004-03-31 2005-11-10 Nabtesco Corp Joint

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