JP5566759B2

JP5566759B2 - Piping joint with valve

Info

Publication number: JP5566759B2
Application number: JP2010096304A
Authority: JP
Inventors: 一郎大河原; 大作稲村; 一彦大澤; 信一北野
Original assignee: Saginomiya Seisakusho Inc
Current assignee: Saginomiya Seisakusho Inc
Priority date: 2010-04-19
Filing date: 2010-04-19
Publication date: 2014-08-06
Anticipated expiration: 2030-04-19
Also published as: JP2011226546A

Description

本発明は、２つの配管の流路を結合、分離することが可能で、流体制御手段として弁を備えた弁付き配管継手に関する。 The present invention relates to a valve-equipped pipe joint that can couple and separate the flow paths of two pipes and includes a valve as a fluid control means.

従来、例えば、液体などの流体の配管の継手として、２つの配管の流路を結合、分離することが可能で、流体制御手段として弁を備えた弁付き配管継手が、特許文献１（特表平１１−５００５１７号公報）に開示されている。 2. Description of the Related Art Conventionally, for example, as a joint for a fluid pipe such as a liquid, a pipe joint with a valve that can connect and separate the flow paths of two pipes and includes a valve as a fluid control means is disclosed in Patent Document 1 (special table). No. 11-500517).

この特許文献１の弁付き配管継手は、継手を相互に連結、または、分離する際に、配管継手の内部の流体が、外部に漏出することを防ぐための弁付き配管継手に関するものである。 The pipe joint with valve of Patent Document 1 relates to a pipe joint with valve for preventing fluid inside the pipe joint from leaking to the outside when the joints are connected to or separated from each other.

図１９の概略図に示したように、この特許文献１の弁付き配管継手１００は、メス継手１０２と、オス継手１０４から構成される、一対の継手から構成されている。 As shown in the schematic view of FIG. 19, the valved pipe joint 100 of Patent Document 1 is composed of a pair of joints including a female joint 102 and a male joint 104.

そして、メス継手１０２のメス側流路配管１０６の先端部には、メス側弁座１０８を備えており、メス側流路配管１０６の外周部には、メス側流路配管１０６に沿って前後に摺動可能に装着されたメス弁部材１１０を備えている。 A female side valve seat 108 is provided at the distal end of the female side flow channel pipe 106 of the female joint 102, and the outer periphery of the female side flow channel pipe 106 is moved back and forth along the female side flow channel pipe 106. And a female valve member 110 slidably mounted on the head.

このメス弁部材１１０と、メス側流路配管１０６のフランジ状の基端部１１２との間には、バネ部材１１４が圧縮状態で介装されており、メス弁部材１１０は、バネ部材１１４の作用によって、メス側流路配管１０６の先端方向、すなわち、メス側弁座１０８の方向に付勢されるように構成されている。 A spring member 114 is interposed in a compressed state between the female valve member 110 and the flange-shaped base end portion 112 of the female-side flow passage pipe 106, and the female valve member 110 is connected to the spring member 114. It is configured to be urged by the action in the direction of the distal end of the female side flow pipe 106, that is, in the direction of the female side valve seat 108.

これにより、弁付き配管継手１００が相互に分離した状態では、メス側流路配管１０６の開口部１１６が、弁閉された（閉口された）状態となるように構成されている。 Thereby, in the state which the piping joint 100 with a valve isolate | separated from each other, it is comprised so that the opening part 116 of the female | scalpel side flow path piping 106 may be in the valve closed (closed) state.

一方、オス継手１０４のオス側流路配管１１８の分岐部１２０には、この分岐部１２０の内周部に、分岐部１２０に沿って前後に摺動可能に装着されたオス弁部材１２２を備えている。 On the other hand, the branching portion 120 of the male-side passage pipe 118 of the male joint 104 is provided with a male valve member 122 mounted on the inner peripheral portion of the branching portion 120 so as to be slidable back and forth along the branching portion 120. ing.

そして、オス継手本体１２４の先端部分のフランジ状のオス側弁座１２６と、オス側流路配管１１８の分岐部１２０の基端部１２８との間に、バネ部材１３０が圧縮状態で介装されており、オス弁部材１２２は、バネ部材１３０の作用によって、オス側弁座１２６の方向に付勢されるように構成されている。 The spring member 130 is interposed in a compressed state between the flange-shaped male valve seat 126 at the distal end portion of the male joint main body 124 and the proximal end portion 128 of the branching portion 120 of the male flow passage pipe 118. The male valve member 122 is configured to be biased toward the male valve seat 126 by the action of the spring member 130.

これにより、弁付き配管継手１００を相互に分離した状態では、流路１３２が、弁閉された（閉口された）状態となるように構成されている。 Thereby, in the state which isolate | separated the piping joint 100 with a valve | bulb mutually, the flow path 132 is comprised so that it may be in the state by which the valve was closed (closed).

また、メス継手１０２のメス側流路配管１０６の外周部には、メス弁部材１１０が摺動する部分に、シール部材として、Ｏリング１３４が装着されている。同様に、メス側弁座１０８の外周部にも、メス弁部材１１０が摺動する部分に、シール部材として、Ｏリング１３４’が装着されている。 In addition, an O-ring 134 is attached as a seal member to a portion where the female valve member 110 slides on the outer peripheral portion of the female side passage pipe 106 of the female joint 102. Similarly, an O-ring 134 ′ is mounted on the outer peripheral portion of the female side valve seat 108 as a seal member at a portion where the female valve member 110 slides.

さらに、オス弁部材１２２の外周部には、オス弁部材１２２が摺動するオス側流路配管１１８の分岐部１２０の内周部との接触部分に、Ｏリング１３４”が装着されている。 Further, an O-ring 134 ″ is attached to the outer peripheral portion of the male valve member 122 at a contact portion with the inner peripheral portion of the branch portion 120 of the male-side channel pipe 118 on which the male valve member 122 slides.

このように構成される特許文献１の弁付き配管継手１００では、メス継手１０２とオス継手１０４とを相互に連結した状態では、図２０に示したように、２つの配管の流路が結合された状態となる。 In the pipe joint 100 with a valve of Patent Document 1 configured as described above, in the state where the female joint 102 and the male joint 104 are connected to each other, as shown in FIG. It becomes a state.

すなわち、図２０に示したように、オス継手本体１２４の先端部１２６ａが、メス弁部材１１０に当接して、メス弁部材１１０を、バネ部材１１４の付勢力に抗して、メス側流路配管１０６の基端部１１２側に、メス側流路配管１０６の外周に沿って押し戻す。これにより、メス弁部材１１０が、メス側弁座１０８から離間した状態となって、メス側流路配管１０６の開口部１１６が、弁開された（開口された）状態となる。 That is, as shown in FIG. 20, the distal end portion 126 a of the male joint main body 124 abuts on the female valve member 110, and the female valve member 110 is resisted against the biasing force of the spring member 114. Push back toward the base end 112 side of the pipe 106 along the outer periphery of the female channel pipe 106. As a result, the female valve member 110 is separated from the female valve seat 108, and the opening 116 of the female flow passage pipe 106 is opened (opened).

また、図２０に示したように、メス側弁座１０８が、オス弁部材１２２に当接して、オス弁部材１２２を、バネ部材１３０の付勢力に抗して、オス側流路配管１１８の基端部１２８側に、押し戻される。これにより、オス弁部材１２２が、オス側弁座１２６から離間した状態となって、流路１３２が、弁開された（開口された）状態となるように構成されている。 Further, as shown in FIG. 20, the female valve seat 108 contacts the male valve member 122, and the male valve member 122 is resisted against the biasing force of the spring member 130, so Pushed back to the base end 128 side. Thereby, the male valve member 122 is separated from the male valve seat 126, and the flow path 132 is configured to be opened (opened).

特表平１１−５００５１７号公報Japanese National Patent Publication No. 11-500517 実開昭６３−１４６２９１号公報Japanese Utility Model Publication No. 63-146291

しかしながら、このような特許文献１に記載されているような、従来の弁付き配管継手１００では、外気とのシール部、すなわち、メス継手１０２のメス側流路配管１０６の外周部には、メス弁部材１１０が摺動する部分に、シール部材として、Ｏリング１３４が装着されている構造である。 However, in the conventional valve-equipped pipe joint 100 as described in Patent Document 1, a female part is provided at the outer air seal part, that is, the outer peripheral part of the female-side flow pipe 106 of the female joint 102. In this structure, an O-ring 134 is attached as a seal member to a portion where the valve member 110 slides.

このため、弁付き配管継手１００において、メス継手１０２と、オス継手１０４との連結、分離を繰り返し行うと、シール部材であるＯリング１３４が磨耗、破損して、内部流体が外部に漏洩するおそれがある。従って、内部流体が、例えば、薬品、フロンガスなどの場合には、環境への影響を及ぼすおそれがあり、好ましくない。 For this reason, in the valve-equipped pipe joint 100, when the connection and separation of the female joint 102 and the male joint 104 are repeated, the O-ring 134, which is a seal member, is worn and damaged, and the internal fluid may leak to the outside. There is. Therefore, when the internal fluid is, for example, a chemical or chlorofluorocarbon, there is a possibility that it may affect the environment, which is not preferable.

このため、シール部材の磨耗損傷を避けるために、特許文献２（実開昭６３−１４６２９１号公報）では、図２１に示したような、弁付き配管継手２００が提案されている。 For this reason, in order to avoid wear damage of the seal member, Patent Literature 2 (Japanese Utility Model Publication No. 63-146291) proposes a valve-equipped pipe joint 200 as shown in FIG.

すなわち、この特許文献２の弁付き配管継手２００では、メス継手２０２のメス継手本体２０１とメス弁部材２０４との間に、袋状のダイヤフラム２０６を介装している。そして、バネ部材２０８とダイヤフラム２０６との間に、カラー部材２１０を設けている。 That is, in the pipe joint 200 with a valve of Patent Document 2, a bag-shaped diaphragm 206 is interposed between the female joint body 201 and the female valve member 204 of the female joint 202. A collar member 210 is provided between the spring member 208 and the diaphragm 206.

しかしながら、この場合、図２１に示したように、弁付き配管継手２００の連結、分離の際に、ダイヤフラム２０６、カラー部材２１０が摺動することは避けられず、ダイヤフラム２０６が磨耗、破損して、内部流体が外部に漏洩するおそれがある。 However, in this case, as shown in FIG. 21, it is inevitable that the diaphragm 206 and the collar member 210 slide during the connection and separation of the valve-equipped pipe joint 200, and the diaphragm 206 is worn and damaged. The internal fluid may leak to the outside.

しかも、この場合、ダイヤフラム２０６、カラー部材２１０などを設けなければならず、構造が複雑でコストが高くつくとともに、メス弁部材２０４の弁閉方向への付勢力は、バネ部材２０８による付勢力のみであるので、十分な弁閉力を確保するためにはバネ部材２０８が大型になり、弁付き配管継手２００を小型化することができないことになる。 In addition, in this case, the diaphragm 206, the collar member 210, etc. must be provided, the structure is complicated and the cost is high, and the urging force of the female valve member 204 in the valve closing direction is only the urging force of the spring member 208. Therefore, in order to ensure a sufficient valve closing force, the spring member 208 becomes large, and the valved pipe joint 200 cannot be reduced in size.

さらに、特許文献２に開示されている弁付き配管継手において、継手の分離時に、メス継手とオス継手との間に残存する流体が、外部に漏出するおそれがある。従って、内部流体が、例えば、薬品、フロンガスなどの場合には、環境への影響を及ぼすおそれがあり、好ましくない。 Furthermore, in the pipe joint with valve disclosed in Patent Document 2, when the joint is separated, the fluid remaining between the female joint and the male joint may leak to the outside. Therefore, when the internal fluid is, for example, a chemical or chlorofluorocarbon, there is a possibility that it may affect the environment, which is not preferable.

本発明は、このような現状に鑑み、弁付き配管継手において、メス継手と、オス継手との連結、分離を繰り返し行っても、シール部材が磨耗、破損して、内部流体が外部に漏洩するおそれがない弁付き配管継手を提供することを目的とする。 In view of such a current situation, in the present invention, in a valve-equipped pipe joint, even if the connection and separation of the female joint and the male joint are repeated, the seal member is worn and damaged, and the internal fluid leaks to the outside. The object is to provide a pipe joint with a valve that is free from fear.

また、本発明は、構造が簡単でコストを低減することが可能であるとともに、メス弁部材の弁閉方向への付勢力は、バネ部材による付勢力のみでなく、低バネ荷重のバネ部材を用いて小型化することができるとともに、確実なシール性を確保できる弁付き配管継手を提供することを目的とする。 Further, the present invention has a simple structure and can reduce the cost, and the urging force of the female valve member in the valve closing direction is not limited to the urging force by the spring member, but a spring member having a low spring load. An object of the present invention is to provide a valve-equipped pipe joint that can be reduced in size and can secure a reliable sealing property.

さらに、本発明は、継手の分離時に、メス継手とオス継手との間に残存する流体が、外部に漏出するおそれがなく、内部流体が、例えば、薬品、フロンガスなどの場合であっても、環境への影響を及ぼすおそれがない弁付き配管継手を提供することを目的とする。 Furthermore, the present invention, when separating the joint, there is no risk that the fluid remaining between the female joint and the male joint leaks outside, even if the internal fluid is, for example, chemicals, chlorofluorocarbons, The object is to provide a valve-equipped pipe joint that does not affect the environment.

本発明は、前述したような従来技術における課題及び目的を達成するために発明されたものであって、本発明の弁付き配管継手は、
メス継手とオス継手とから構成される一対の継手と、
前記メス継手内に配設したメス弁部材とメス側弁座から構成されるメス弁と、
前記オス継手内に配設したオス弁部材とオス側弁座からなるオス弁とを備え、
前記メス継手とオス継手とから構成される一対の継手を、相互に連結、または、分離することによって、メス弁とオス弁とを開閉して、２つの配管の流路を結合、分離することが可能な弁付き配管継手であって、
前記メス継手本体とメス弁部材との間に介装したダイヤフラムを備え、
前記メス弁部材が、バネ部材の作用によって、弁閉方向に付勢されるように構成され、
前記ダイヤフラムの外側を大気側と連通させるとともに、ダイヤフラムの内側をメス継手内のメス側配管流路と連通させて、その差圧によって、ダイヤフラムを介して、メス弁部材を弁閉方向に付勢するように構成され、
前記バネ部材の作用による弁閉方向への付勢力と、前記差圧による弁閉方向への付勢力によって、メス弁部材を弁閉方向に付勢するように構成したことを特徴とする。
The present invention was invented in order to achieve the problems and objects in the prior art as described above.
A pair of joints composed of a female joint and a male joint;
A female valve composed of a female valve member and a female valve seat disposed in the female joint;
A male valve member comprising a male valve member and a male valve seat disposed in the male joint,
By connecting or separating a pair of joints composed of the female joint and the male joint to each other, the female valve and the male valve are opened and closed to connect and separate the flow paths of the two pipes. A pipe joint with a valve that can
A diaphragm interposed between the female joint body and the female valve member;
The female valve member is configured to be biased in the valve closing direction by the action of a spring member,
The outside of the diaphragm is communicated with the atmosphere side, and the inside of the diaphragm is communicated with the female side piping passage in the female joint, and the female valve member is biased in the valve closing direction via the diaphragm by the differential pressure. Configured to
The female valve member is biased in the valve closing direction by the biasing force in the valve closing direction by the action of the spring member and the biasing force in the valve closing direction by the differential pressure .

このように構成することによって、メス継手本体とメス弁部材との間に介装したダイヤフラムを備えるので、メス継手と、オス継手との連結、分離を繰り返し行っても、従来のシール部材であるＯリング部材に比較して、シール部材であるダイヤフラムが、磨耗、破損して、内部流体が外部に漏洩するおそれがない。 By comprising in this way, since the diaphragm interposed between the female joint main body and the female valve member is provided, even if it repeats connection and separation with a female joint and a male joint, it is a conventional seal member. Compared to the O-ring member, the diaphragm, which is a seal member, is worn out and damaged, and there is no possibility that the internal fluid leaks to the outside.

しかも、メス弁部材が、バネ部材の作用によって、弁閉方向に付勢されるように構成されるとともに、ダイヤフラムの外側を大気側と連通させるとともに、ダイヤフラムの内側をメス継手内のメス側配管流路と連通させて、その差圧によって、ダイヤフラムを介して、メス弁部材を弁閉方向に付勢するように構成している。
Moreover, the female valve member is configured to be urged in the valve closing direction by the action of the spring member, and the outside of the diaphragm is communicated with the atmosphere side, and the inside of the diaphragm is connected to the female side pipe in the female joint. The female valve member is configured to be urged in the valve closing direction through the diaphragm by the pressure difference in communication with the flow path.

従って、構造が簡単でコストを低減することが可能であるとともに、メス弁部材の弁閉方向への付勢力は、バネ部材による付勢力（弁閉方向への付勢力）のみでなく、差圧によって、ダイヤフラムを介して、メス弁部材を弁閉方向に付勢することになる。すなわち、同じ弁閉方向に付勢することになる。その結果、低バネ荷重のバネ部材を用いて小型化することができるとともに、確実なシール性を確保できる。
Therefore, the structure is simple and the cost can be reduced, and the urging force of the female valve member in the valve closing direction is not only the urging force by the spring member (the urging force in the valve closing direction) but also the differential pressure. As a result, the female valve member is biased in the valve closing direction via the diaphragm. That is, the same valve closing direction is urged. As a result, it is possible to reduce the size by using a spring member having a low spring load, and to ensure reliable sealing performance.

また、本発明の弁付き配管継手は、前記メス弁のメス側弁座の、オス弁のオス側弁座との当接部分に、継手の分離時に、メス継手とオス継手との間に残存する流体をメス側配管流路内に導くシール材を設けたことを特徴とする。 In addition, the valve-equipped pipe joint of the present invention remains between the female joint and the male joint at the contact portion of the female valve seat of the female valve with the male valve seat of the male valve when the joint is separated. The sealing material which guides the fluid to do in the female side piping flow path is provided.

このように、メス弁のメス側弁座の、オス弁のオス側弁座との当接部分に、継手の分離時に、メス継手とオス継手との間に残存する流体をメス側配管流路内に導くシール材を設けたので、継手の分離時に、メス継手とオス継手との間に残存する流体が、外部に漏出するおそれがなく、内部流体が、例えば、薬品、フロンガスなどの場合であっても、環境への影響を及ぼすおそれがない
また、本発明の弁付き配管継手は、前記オス弁のオス弁部材の、メス弁のメス側弁座との当接部分に、継手の分離時に、メス継手とオス継手との間に残存する流体をメス側配管流路内に押し戻すシール材を設けたことを特徴とする。 In this way, the fluid remaining between the female joint and the male joint at the contact portion of the female valve seat of the female valve with the male valve seat of the male valve is separated when the joint is separated. Since the sealing material leading to the inside is provided, there is no risk that the fluid remaining between the female joint and the male joint will leak to the outside when the joint is separated, and the internal fluid is, for example, chemicals or chlorofluorocarbons. Even if it is, there is no possibility of affecting the environment. Further, the valve-equipped pipe joint of the present invention is separated from the joint of the male valve member of the male valve with the female valve seat of the female valve. Sometimes, a seal material is provided to push back the remaining fluid between the female joint and the male joint into the female-side piping flow path.

このように、オス弁のオス弁部材の、メス弁のメス側弁座との当接部分に、継手の分離時に、メス継手とオス継手との間に残存する流体をメス側配管流路内に押し戻すシール材を設けたので、継手の分離時に、メス継手とオス継手との間に残存する流体が、外部に漏出するおそれがなく、内部流体が、例えば、薬品、フロンガスなどの場合であっても、環境への影響を及ぼすおそれがない As described above, the fluid remaining between the female joint and the male joint is separated in the female-side piping flow path when the joint is separated at the contact portion of the male valve member of the male valve with the female valve seat of the female valve. Since the sealing material that is pushed back to is provided, the fluid remaining between the female joint and the male joint is not leaked to the outside when the joint is separated, and the internal fluid is, for example, chemicals or chlorofluorocarbon. There is no risk of environmental impact

本発明によれば、メス継手本体とメス弁部材との間に介装したダイヤフラムを備えるので、メス継手と、オス継手との連結、分離を繰り返し行っても、従来のシール部材であるＯリング部材に比較して、シール部材であるダイヤフラムが、磨耗、破損して、内部流体が外部に漏洩するおそれがない。 According to the present invention, since the diaphragm interposed between the female joint main body and the female valve member is provided, the O-ring which is a conventional seal member even if the female joint and the male joint are repeatedly connected and separated. Compared to the member, the diaphragm, which is a seal member, is not worn or damaged, and there is no possibility that the internal fluid leaks to the outside.

また、本発明によれば、継手の分離時に、メス継手とオス継手との間に残存する流体が、外部に漏出するおそれがなく、内部流体が、例えば、薬品、フロンガスなどの場合であっても、環境への影響を及ぼすおそれがない Further, according to the present invention, when the joint is separated, there is no possibility that the fluid remaining between the female joint and the male joint leaks to the outside, and the internal fluid is, for example, a chemical or a chlorofluorocarbon gas. There is no risk of environmental impact

図１は、本発明の弁付き配管継手のメス継手とオス継手とを分離した状態の断面図である。FIG. 1 is a cross-sectional view showing a state where a female joint and a male joint of a pipe joint with a valve of the present invention are separated. 図２は、本発明の弁付き配管継手のメス継手とオス継手とを連結する状態を説明する断面図である。FIG. 2 is a cross-sectional view illustrating a state in which the female joint and the male joint of the pipe joint with valve of the present invention are connected. 図３は、本発明の弁付き配管継手のメス継手とオス継手とを連結する状態を説明する断面図である。FIG. 3 is a cross-sectional view illustrating a state in which the female joint and the male joint of the pipe joint with valve of the present invention are connected. 図４は、本発明の弁付き配管継手のメス継手とオス継手とを連結した状態を説明する断面図である。FIG. 4 is a cross-sectional view illustrating a state where the female joint and the male joint of the valve-equipped pipe joint of the present invention are connected. 図５は、本発明の弁付き配管継手の課題を説明する断面図である。FIG. 5 is a cross-sectional view illustrating the problem of the valved pipe joint of the present invention. 図６は、図５の部分拡大斜視図である。6 is a partially enlarged perspective view of FIG. 図７は、本願発明の配管継手の使用状態を説明する部分拡大断面図である。FIG. 7 is a partially enlarged cross-sectional view for explaining a use state of the pipe joint of the present invention. 図８は、本願発明の配管継手の使用状態を説明する部分拡大断面図である。FIG. 8 is a partially enlarged cross-sectional view for explaining a use state of the pipe joint of the present invention. 図９は、本願発明の配管継手の使用状態を説明する部分拡大断面図である。FIG. 9 is a partially enlarged cross-sectional view for explaining a use state of the pipe joint of the present invention. 図１０は、本願発明の配管継手の使用状態を説明する部分拡大断面図である。FIG. 10 is a partially enlarged cross-sectional view for explaining a use state of the pipe joint of the present invention. 図１１は、本発明の別の実施例の弁付き配管継手のメス継手とオス継手とを分離した状態の断面図である。FIG. 11 is a cross-sectional view showing a state where a female joint and a male joint of a pipe joint with a valve according to another embodiment of the present invention are separated. 図１２は、本発明の別の実施例の弁付き配管継手のメス継手とオス継手とを連結する状態を説明する断面図である。FIG. 12 is a cross-sectional view illustrating a state where a female joint and a male joint of a pipe joint with a valve according to another embodiment of the present invention are connected. 図１３は、本発明の別の実施例の弁付き配管継手のメス継手とオス継手とを連結する状態を説明する断面図である。FIG. 13: is sectional drawing explaining the state which connects the female joint and male joint of the pipe joint with a valve of another Example of this invention. 図１４は、本発明の別の実施例の弁付き配管継手のメス継手とオス継手とを連結した状態を説明する断面図である。FIG. 14 is a cross-sectional view illustrating a state where a female joint and a male joint of a pipe joint with valve of another embodiment of the present invention are connected. 図１５は、本願発明の配管継手の使用状態を説明する部分拡大断面図である。FIG. 15 is a partially enlarged cross-sectional view for explaining a use state of the pipe joint of the present invention. 図１６は、本願発明の配管継手の使用状態を説明する部分拡大断面図である。FIG. 16 is a partially enlarged cross-sectional view for explaining a use state of the pipe joint of the present invention. 図１７は、本願発明の配管継手の使用状態を説明する部分拡大断面図である。FIG. 17 is a partially enlarged cross-sectional view for explaining a use state of the pipe joint of the present invention. 図１８は、本願発明の配管継手の使用状態を説明する部分拡大断面図である。FIG. 18 is a partially enlarged cross-sectional view for explaining a use state of the pipe joint of the present invention. 図１９は、従来の弁付き配管継手の断面図である。FIG. 19 is a sectional view of a conventional valved pipe joint. 図２０は、従来の弁付き配管継手の使用状態を説明する断面図である。FIG. 20 is a cross-sectional view illustrating a use state of a conventional valve-equipped pipe joint. 図２１は、従来の弁付き配管継手の断面図である。FIG. 21 is a cross-sectional view of a conventional valve-equipped pipe joint.

以下、本発明の実施の形態（実施例）を図面に基づいてより詳細に説明する。 Hereinafter, embodiments (examples) of the present invention will be described in more detail with reference to the drawings.

図１は、本発明の弁付き配管継手のメス継手とオス継手とを分離した状態の断面図、図２は、本発明の弁付き配管継手のメス継手とオス継手とを連結する状態を説明する断面図、図３は、本発明の弁付き配管継手のメス継手とオス継手とを連結する状態を説明する断面図、図４は、本発明の弁付き配管継手のメス継手とオス継手とを連結した状態を説明する断面図である。 FIG. 1 is a sectional view showing a state where a female joint and a male joint of a pipe joint with valve of the present invention are separated, and FIG. 2 illustrates a state where the female joint and male joint of the pipe joint with valve of the present invention are connected. FIG. 3 is a cross-sectional view illustrating a state in which the female joint and the male joint of the pipe joint with valve of the present invention are connected. FIG. 4 illustrates the female joint and male joint of the pipe joint with valve of the present invention. It is sectional drawing explaining the state which connected.

図１〜図４において、符号１０は、全体で本発明の弁付き配管継手を示している。 1-4, the code | symbol 10 has shown the piping joint with a valve of this invention as a whole.

図１に示したように、弁付き配管継手１０は、メス継手１２と、オス継手１４から構成される、一対の継手から構成されている。 As shown in FIG. 1, the pipe joint 10 with a valve is composed of a pair of joints composed of a female joint 12 and a male joint 14.

そして、メス継手１２のメス側流路配管１６の先端部には、メス側弁座１８を備えており、メス側流路配管１６の外周部には、メス側流路配管１６に沿って前後に摺動可能に装着されたメス弁部材２０を備えている。これらのメス弁部材２０とメス側弁座１８とからメス弁１１が構成されている。 A female side valve seat 18 is provided at the tip of the female side flow pipe 16 of the female joint 12, and the outer periphery of the female side flow pipe 16 is arranged along the female side flow pipe 16. And a female valve member 20 slidably mounted on the head. The female valve 11 is composed of the female valve member 20 and the female valve seat 18.

このメス弁部材２０は、メス側流路配管１６のフランジ状の基端部２２との間に、圧縮状態で介装されたバネ部材２４の作用によって、メス側流路配管１６の先端方向、すなわち、メス側弁座１８の方向に（弁閉方向に）付勢されるように構成されている。
This female valve member 20 is connected to the flange-like base end portion 22 of the female side flow pipe 16 by the action of a spring member 24 interposed in a compressed state, That is, it is configured to be biased in the direction of the female side valve seat 18 (in the valve closing direction) .

これにより、図１に示したように、弁付き配管継手１０が相互に分離した状態では、メス側流路配管１６の開口部２６が、弁閉された（閉口された）状態となるように構成されている。 As a result, as shown in FIG. 1, in the state where the valved pipe joint 10 is separated from each other, the opening 26 of the female side flow pipe 16 is in a valve-closed (closed) state. It is configured.

一方、オス継手１４のオス側流路配管２８の先端部３０には、この先端部３０の外周部に、先端部３０に沿って前後に摺動可能に装着されたオス弁部材３２を備えている。 On the other hand, the distal end portion 30 of the male-side flow passage pipe 28 of the male joint 14 is provided with a male valve member 32 attached to the outer peripheral portion of the distal end portion 30 so as to be slidable back and forth along the distal end portion 30. Yes.

そして、このオス弁部材３２は、オス継手本体３４の先端部分のフランジ状のオス側弁座３６と、オス側流路配管２８の先端部３０の基端部３８との間に、圧縮状態で介装されたバネ部材４０の作用によって、オス側弁座３６の方向に付勢されるように構成されている。これらのオス弁部材３２とオス側弁座３６とからオス弁１３が構成されている。 The male valve member 32 is compressed between the flange-shaped male valve seat 36 at the distal end portion of the male joint body 34 and the proximal end portion 38 of the distal end portion 30 of the male flow passage pipe 28. It is configured to be biased toward the male valve seat 36 by the action of the interposed spring member 40. The male valve 13 is composed of the male valve member 32 and the male valve seat 36.

これにより、弁付き配管継手１０を相互に分離した状態では、オス側流路配管２８の流路４２が、弁閉された（閉口された）状態となるように構成されている。 Thereby, in the state which isolate | separated the pipe joint 10 with a valve | bulb mutually, it is comprised so that the flow path 42 of the male side flow path piping 28 may be in the valve-closed (closed) state.

ところで、特許文献１に記載されているような、従来の弁付き配管継手１００では、メス継手１０２と、オス継手１０４との連結、分離を繰り返し行うと、シール部材であるＯリング１３４が磨耗、破損して、内部流体が外部に漏洩するおそれがある。 By the way, in the conventional valve-equipped pipe joint 100 as described in Patent Document 1, when the female joint 102 and the male joint 104 are repeatedly connected and separated, the O-ring 134 as a seal member is worn. There is a risk of internal fluid leaking outside due to damage.

このため、本願発明では、図１に示したように、メス継手本体１５の内壁１５ａとメス弁部材２０の後端部２０ａとの間に、ダイヤフラム４４が介装されている。 Therefore, in the present invention, as shown in FIG. 1, the diaphragm 44 is interposed between the inner wall 15 a of the female joint body 15 and the rear end portion 20 a of the female valve member 20.

さらに、図１に示したように、メス側流路配管１６には、均圧孔４６が形成されており、メス側流路配管１６の内部のメス側配管流路４８と、ダイヤフラム４４の内側の空間５０とが連通されるようになっている。 Further, as shown in FIG. 1, a pressure equalizing hole 46 is formed in the female side flow pipe 16, and the female side pipe flow path 48 inside the female side flow pipe 16 and the inner side of the diaphragm 44. The space 50 is communicated with each other.

また、図１に示したように、メス継手本体１５のダイヤフラム４４の外側には、外部連通孔５２が形成されている。これにより、ダイヤフラム４４の外側の空間５４を、外部連通孔５２を介して、大気側と連通させるとともに、ダイヤフラム４４の内側の空間５０を、メス継手１２のメス側流路配管１６の内部のメス側配管流路４８と連通させて、その差圧によって、ダイヤフラム４４を介して、メス弁部材２０を弁閉方向に、すなわち、メス側弁座１８の方向に付勢するように構成されている。 As shown in FIG. 1, an external communication hole 52 is formed on the outer side of the diaphragm 44 of the female joint body 15. As a result, the outer space 54 of the diaphragm 44 is communicated with the atmosphere side through the external communication hole 52, and the inner space 50 of the diaphragm 44 is communicated with the female inside the female side flow pipe 16 of the female joint 12. The female valve member 20 is configured to be urged in the valve closing direction, that is, in the direction of the female side valve seat 18 through the diaphragm 44 by communicating with the side piping passage 48 and by the differential pressure. .

このように構成することによって、メス継手本体１５とメス弁部材２０との間に介装したダイヤフラム４４を備えるので、メス継手１２と、オス継手１４との連結、分離を繰り返し行っても、従来のシール部材であるＯリング部材に比較して、シール部材であるダイヤフラム４４が、磨耗、破損して、内部流体が外部に漏洩するおそれがない。 By comprising the diaphragm 44 interposed between the female joint main body 15 and the female valve member 20 by comprising in this way, even if it connects and isolate | separates with the female joint 12 and the male joint 14 repeatedly, it is conventional. Compared with the O-ring member which is the seal member, the diaphragm 44 which is the seal member is not worn or damaged, and there is no possibility that the internal fluid leaks to the outside.

また、構造が簡単でコストを低減することが可能であるとともに、メス弁部材２０の弁閉方向への付勢力は、バネ部材２４による付勢力（弁閉方向への付勢力）のみでなく、差圧によって、ダイヤフラム４４を介して、メス弁部材２０を弁閉方向に付勢することになる。すなわち、同じ弁閉方向に付勢することになる。その結果、低バネ荷重のバネ部材２４を用いて小型化することができるとともに、確実なシール性を確保できる。
Further, the structure is simple and the cost can be reduced, and the urging force of the female valve member 20 in the valve closing direction is not limited to the urging force by the spring member 24 ( biasing force in the valve closing direction) , Due to the differential pressure, the female valve member 20 is biased in the valve closing direction via the diaphragm 44. That is, the same valve closing direction is urged. As a result, it is possible to reduce the size by using the spring member 24 having a low spring load, and to ensure reliable sealing performance.

一方、メス弁１１のメス側弁座１８の、オス弁１３のオス側弁座３６との当接部分に、後述するように、継手の分離時に、メス継手１２とオス継手１４との間に残存する流体をメス側配管流路４８内に導くワイパー部材を構成するシール材５６が設けられている。 On the other hand, the contact portion of the female valve seat 18 of the female valve 11 with the male valve seat 36 of the male valve 13 is, as will be described later, between the female joint 12 and the male joint 14 when the joint is separated. A sealing material 56 is provided that constitutes a wiper member that guides the remaining fluid into the female-side piping passage 48.

このように、メス弁１１のメス側弁座１８の、オス弁１３のオス側弁座３６との当接部分に、継手の分離時に、メス継手１２とオス継手１４との間に残存する流体をメス側配管流路４８内に導く（掻き込む）シール材５６を設けたので、配管継手１０の分離時に、メス継手１２とオス継手１４との間に残存する流体が、外部に漏出するおそれがなく、内部流体が、例えば、薬品、フロンガスなどの場合であっても、環境への影響を及ぼすおそれがない。 Thus, the fluid remaining between the female joint 12 and the male joint 14 at the contact portion of the female valve seat 18 of the female valve 11 with the male valve seat 36 of the male valve 13 when the joint is separated. Is provided in the female-side piping flow path 48, the fluid remaining between the female joint 12 and the male joint 14 may leak to the outside when the pipe joint 10 is separated. Even if the internal fluid is, for example, chemicals or chlorofluorocarbon, there is no risk of affecting the environment.

なお、この場合、シール材５６としては、図１、図７〜図１０に示したように、その断面が扁平な形状で、平坦な摺動面５６aを有するのが、前述したメス継手１２とオス継手１４との間に残存する流体をメス側配管流路４８内に導く（掻き込む）効果を考慮すれば望ましい。
In this case, as shown in FIGS . 1 and 7 to 10 , the sealing material 56 has a flat cross section and a flat sliding surface 56 a. It is desirable in view of the effect of guiding (scratching) the fluid remaining between the male joint 14 into the female-side piping channel 48.

また、シール材５６の材質としては、流体の種類によって適宜変更すれば良く、特に限定されるものではない。例えば、ＮＢＲなどのゴム、フッ素樹脂などを使用することができる。 Further, the material of the sealing material 56 may be appropriately changed depending on the type of fluid, and is not particularly limited. For example, rubber such as NBR, fluorine resin, or the like can be used.

このように構成される本発明の弁付き配管継手１０の使用方法について、以下に、図１〜図４に基づいて説明する。 A method of using the valved pipe joint 10 of the present invention configured as described above will be described below with reference to FIGS.

先ず、弁付き配管継手１０は、図１に示したように、使用していない状態では、メス継手１２と、オス継手１４から構成される、一対の継手が、相互に分離した状態となっている。 First, as shown in FIG. 1, the valve-equipped pipe joint 10 is in a state where a pair of joints composed of a female joint 12 and a male joint 14 are separated from each other when not in use. Yes.

図１に示したように、弁付き配管継手１０が相互に分離した状態では、メス弁部材２０は、メス側流路配管１６のフランジ状の基端部２２との間に、圧縮状態で介装されたバネ部材２４の作用によって、メス側流路配管１６の先端方向、すなわち、メス側弁座１８の方向に付勢されている。 As shown in FIG. 1, in a state where the valve-equipped pipe joints 10 are separated from each other, the female valve member 20 is interposed in a compressed state between the female-side flow path pipe 16 and the flange-shaped base end portion 22. By the action of the mounted spring member 24, it is biased toward the distal end direction of the female side flow pipe 16, that is, toward the female side valve seat 18.

また、ダイヤフラム４４の外側の空間５４を、外部連通孔５２を介して、大気側と連通させるとともに、ダイヤフラム４４の内側の空間５０を、均圧孔４６を介して、メス継手１２のメス側流路配管１６の内部のメス側配管流路４８と連通させて、その差圧によって、ダイヤフラム４４を介して、メス弁部材２０を弁閉方向に、すなわち、メス側弁座１８の方向に付勢するように構成されている。
Further, the outer space 54 of the diaphragm 44 is communicated with the atmosphere side through the external communication hole 52, and the inner space 50 of the diaphragm 44 is communicated with the female side flow of the female joint 12 through the pressure equalizing hole 46. The female valve member 20 is communicated with the female side pipe flow path 48 inside the line pipe 16, and the differential pressure causes the female valve member 20 to be biased in the valve closing direction, that is, in the direction of the female side valve seat 18. Is configured to do.

これにより、図１に示したように、弁付き配管継手１０が相互に分離した状態では、メス側流路配管１６の開口部２６が、弁閉された（閉口された）状態となっている。 As a result, as shown in FIG. 1, in the state where the valve-equipped pipe joints 10 are separated from each other, the opening 26 of the female-side flow path pipe 16 is in a valve-closed (closed) state. .

また、図１に示したように、弁付き配管継手１０が相互に分離した状態では、オス弁部材３２は、オス継手本体３４の先端部分のフランジ状のオス側弁座３６と、オス側流路配管２８の先端部３０の基端部３８との間に、圧縮状態で介装されたバネ部材４０の作用によって、オス側弁座３６の方向に付勢されている。 Further, as shown in FIG. 1, in the state where the valved pipe joint 10 is separated from each other, the male valve member 32 includes a flange-shaped male valve seat 36 at the distal end portion of the male joint main body 34, and a male side flow. A spring member 40 interposed in a compressed state is biased in the direction of the male side valve seat 36 between the base end portion 38 of the distal end portion 30 of the road pipe 28.

これにより、図１に示したように、弁付き配管継手１０を相互に分離した状態では、オス側流路配管２８の流路４２が、弁閉された（閉口された）状態となっている。 As a result, as shown in FIG. 1, in the state where the valve-equipped pipe joints 10 are separated from each other, the flow path 42 of the male-side flow path pipe 28 is in a valve-closed (closed) state. .

そして、メス継手１２とオス継手１４とを相互に連結する際には、図２に示したように、オス側弁座３６が、メス弁部材２０に当接した状態となる。 When the female joint 12 and the male joint 14 are connected to each other, the male valve seat 36 is in contact with the female valve member 20 as shown in FIG.

さらに、メス継手１２とオス継手１４とを相互に連結する方向に移動させることによって、図３に示したように、メス弁部材２０が、バネ部材２４の付勢力に抗して、メス側流路配管１６の基端部２２側に、メス側流路配管１６の外周に沿って押し戻され、メス弁部材２０が、メス弁座１８から離間する。また、メス弁座１８に、オス弁部材３２が当接した状態になる。 Further, by moving the female joint 12 and the male joint 14 in the direction of connecting each other, the female valve member 20 resists the biasing force of the spring member 24 as shown in FIG. The female valve member 20 is separated from the female valve seat 18 by being pushed back along the outer periphery of the female-side flow pipe 16 toward the base end portion 22 side of the channel pipe 16. Further, the male valve member 32 comes into contact with the female valve seat 18.

さらに、メス継手１２とオス継手１４とを相互に連結する方向に移動させることによって、図４に示したように、メス弁部材２０が、バネ部材２４の付勢力に抗して、メス側流路配管１６の基端部２２側に、メス側流路配管１６の外周に沿って押し戻される。また、オス弁部材３２が、バネ部材４０の付勢力に抗して、オス側流路配管２８の基端部３８側に、押し戻され、オス弁部材３２が、オス側弁座３６から離間した状態となる。 Further, by moving the female joint 12 and the male joint 14 in the direction of mutual connection, the female valve member 20 resists the urging force of the spring member 24 as shown in FIG. The base pipe 22 is pushed back along the outer periphery of the female side flow pipe 16 to the base end 22 side. Further, the male valve member 32 is pushed back to the base end portion 38 side of the male side flow pipe 28 against the urging force of the spring member 40, and the male valve member 32 is separated from the male side valve seat 36. It becomes a state.

これにより、図４に示したように、メス側流路配管１６の開口部２６及びオス側流路配管２８の流路４２が、弁開された（開口された）状態となる。
As a result, as shown in FIG. 4, the opening 26 of the female-side channel pipe 16 and the channel 42 of the male-side channel pipe 28 are opened (opened).

その結果、メス継手１２とオス継手１４とを相互に連結した状態では、図４に示したように、２つの配管の流路が結合された状態となる。これにより、図４中、矢印に示したように、メス側流路配管１６のメス側配管流路４８から、オス側流路配管２８の流路４２に、流体が流入するようになっている。 As a result, when the female joint 12 and the male joint 14 are connected to each other, as shown in FIG. 4, the flow paths of the two pipes are combined. As a result, as shown by the arrows in FIG. 4, the fluid flows from the female-side flow passage 48 of the female-side flow passage 16 into the flow passage 42 of the male-side flow passage 28. .

なお、図４中、流体が矢印に示した方向に流体が流れるように示したが、逆の方向に流れるようにすることも可能である。 In FIG. 4, the fluid flows in the direction indicated by the arrow. However, the fluid may flow in the opposite direction.

以下に、本発明の弁付き配管継手１０の継手の分離時に、メス継手１２とオス継手１４との間に残存する流体をメス側配管流路４８内に導く（掻き込む）シール材５６の作用について、図５〜図１０に基づいて説明する。 Hereinafter, when the joint of the valve-equipped pipe joint 10 of the present invention is separated, the action of the sealing material 56 that guides (squeezes) the fluid remaining between the female joint 12 and the male joint 14 into the female-side pipe flow path 48. Will be described with reference to FIGS.

先ず、図５〜図６に示したように、シール材５６が存在しない場合には、配管継手１０のメス継手１２とオス継手１４とを相互に分離する間に、メス継手１２とオス継手１４との間の継手接合部に内部流体が残る(流出する)。 First, as shown in FIGS. 5 to 6, when the sealing material 56 is not present, the female joint 12 and the male joint 14 are separated while the female joint 12 and the male joint 14 of the pipe joint 10 are separated from each other. Internal fluid remains (flows out) at the joint joint between the two.

すなわち、図６の矢印で示したように、メス側配管流路４８内から、メス弁部材２０とメス側弁座１８との間隙Ｓ１、メス側弁座１８とオス弁部材３２との間の間隙Ｓ２に、内部流体が残る(流出する)ことになる。 That is, as shown by the arrow in FIG. 6, the gap S <b> 1 between the female valve member 20 and the female valve seat 18 and the space between the female valve seat 18 and the male valve member 32 from within the female side pipe flow path 48. The internal fluid remains (flows out) in the gap S2.

このため、内部流体が、例えば、薬品、フロンガスなどの場合では、環境への影響を及ぼすおそれがある。 For this reason, when an internal fluid is a chemical | medical agent, Freon gas, etc., there exists a possibility of having an influence on an environment.

これに対して、本願発明の配管継手１０では、図７〜図１０のように、継手の分離時に、シール材５６の作用によって、メス継手１２とオス継手１４との間に残存する流体をメス側配管流路４８内に導く（掻き込む）ようになっている。 On the other hand, in the pipe joint 10 of the present invention, as shown in FIGS. 7 to 10, the fluid remaining between the female joint 12 and the male joint 14 is removed by the action of the sealing material 56 when the joint is separated. It is guided (scratched) into the side pipe flow path 48.

すなわち、メス継手１２とオス継手１４とを相互に連結した状態では、図７に示したように、２つの配管の流路が結合された状態となる。これにより、図７中、矢印に示したように、メス側流路配管１６のメス側配管流路４８から、オス側流路配管２８の流路４２に、流体が流入するようになっている。 That is, in the state where the female joint 12 and the male joint 14 are connected to each other, as shown in FIG. 7, the flow paths of the two pipes are combined. Thereby, as shown by the arrow in FIG. 7, the fluid flows from the female side pipe flow path 48 of the female side flow pipe 16 into the flow path 42 of the male side flow pipe 28. .

なお、この状態では、図７に示したように、メス弁座１８の、オス弁１３のオス弁座３６との当接部分に設けたシール材５６により、メス弁座１８とオス弁部材３２との間の間隙Ｓ２に、流体が流入しないようになっている。 In this state, as shown in FIG. 7, the female valve seat 18 and the male valve member 32 are provided by the sealing material 56 provided at the contact portion of the female valve seat 18 with the male valve seat 36 of the male valve 13. The fluid does not flow into the gap S2 between the two.

そして、この状態から、メス継手１２とオス継手１４とを相互に分離する際には、先ず、図８に示したように、メス継手１２とオス継手１４とを相互に分離する方向に移動することによって、オス側弁座３６が後退して（図８において右側に）移動する。 In this state, when the female joint 12 and the male joint 14 are separated from each other, first, as shown in FIG. 8, the female joint 12 and the male joint 14 are moved in a direction to separate each other. As a result, the male valve seat 36 moves backward (to the right in FIG. 8) and moves.

この時、前述したように、メス弁部材２０が、バネ部材２４の付勢力と、ダイヤフラム４４の外側の空間５４とダイヤフラム４４の内側の空間５０との差圧とによって、弁閉方向に付勢される。 At this time, as described above, the female valve member 20 is biased in the valve closing direction by the biasing force of the spring member 24 and the differential pressure between the space 54 outside the diaphragm 44 and the space 50 inside the diaphragm 44. Is done.

また、この状態では、図８に示したように、オス側弁座３６の先端部３６ａと、シール材５６とが接触し始める。 Moreover, in this state, as shown in FIG. 8, the front-end | tip part 36a of the male side valve seat 36 and the sealing material 56 begin to contact.

そして、メス継手１２とオス継手１４とを相互にさらに分離する方向に移動させることによって、図９に示したように、オス弁部材３２が、オス側弁座３６に当接し、流路４２を閉じ、また矢印に示したように、メス継手１２とオス継手１４との間に残存する流体、すなわち、メス弁部材２０とメス側弁座１８との間隙Ｓ１に残存する流体が、シール材５６がいわゆるワイパーとして作用することによって、メス側配管流路４８内に導かれる（掻き込まれる）ようになっている。 Then, by moving the female joint 12 and the male joint 14 in a direction in which they are further separated from each other, as shown in FIG. 9, the male valve member 32 comes into contact with the male side valve seat 36, and the flow path 42 is formed. As shown by the arrows, the fluid remaining between the female joint 12 and the male joint 14, that is, the fluid remaining in the gap S1 between the female valve member 20 and the female side valve seat 18, is the sealing material 56. By acting as a so-called wiper, it is guided (scratched) into the female-side piping flow path 48.

さらに、メス継手１２とオス継手１４とを相互にさらに分離する方向に移動させることによって、図１０示したように、メス弁部材２０とメス側弁座１８との間隙Ｓ１に残存する流体が、シール材５６により、さらにメス側配管流路４８内に完全に導かれ、（掻き込まれ）、メス弁部材２０が、オス側弁座１８に当接し、流路２６を閉じる。 Further, by moving the female joint 12 and the male joint 14 in a direction further separating each other, as shown in FIG. 10, the fluid remaining in the gap S1 between the female valve member 20 and the female valve seat 18 is The seal material 56 is further completely guided (scratched) into the female-side piping flow path 48, and the female valve member 20 comes into contact with the male-side valve seat 18 and closes the flow path 26.

これにより、配管継手１０の分離時に、メス継手１２とオス継手１４との間に残存する流体が、外部に漏出するおそれがなく、内部流体が、例えば、薬品、フロンガスなどの場合であっても、環境への影響を及ぼすおそれがないようになっている。 Thereby, when the pipe joint 10 is separated, there is no possibility that the fluid remaining between the female joint 12 and the male joint 14 leaks to the outside, and even if the internal fluid is, for example, chemicals or chlorofluorocarbon. There is no risk of environmental impact.

図１１は、本発明の別の実施例の弁付き配管継手のメス継手とオス継手とを分離した状態の断面図、図１２は、本発明の別の実施例の弁付き配管継手のメス継手とオス継手とを連結する状態を説明する断面図、図１３は、本発明の別の実施例の弁付き配管継手のメス継手とオス継手とを連結する状態を説明する断面図、図１４は、本発明の別の実施例の弁付き配管継手のメス継手とオス継手とを連結した状態を説明する断面図である。 FIG. 11 is a sectional view showing a state where a female joint and a male joint of a pipe joint with a valve according to another embodiment of the present invention are separated, and FIG. 12 is a female joint of a pipe joint with a valve according to another embodiment of the present invention. FIG. 13 is a cross-sectional view illustrating a state in which a female joint and a male joint of a pipe joint with valve according to another embodiment of the present invention are connected, and FIG. FIG. 5 is a cross-sectional view illustrating a state where a female joint and a male joint of a pipe joint with a valve according to another embodiment of the present invention are connected.

この実施例の弁付き配管継手１０は、図１〜図４に示したと基本的には同様な構成であり、同一の構成部材には、同一の参照番号を付して、その詳細な説明を省略する。 The valve-equipped pipe joint 10 of this embodiment has basically the same configuration as shown in FIGS. 1 to 4, and the same reference numerals are given to the same components, and the detailed description thereof will be given. Omitted.

この実施例の弁付き配管継手１０は、シール材５６の代わりに、オス弁１３のオス弁部材３２に、メス弁１１のメス側弁座１８との当接部分であるオス弁部材３２の先端の凹部３２ａ内に、継手の分離時に、メス継手１２とオス継手１４との間に残存する流体を、メス側配管流路４８内に押し戻すダンパー部材を構成するシール材５８が設けられている。 In this embodiment, the valve-equipped pipe joint 10 has a male valve member 32 of the male valve 13 instead of the sealing material 56 and a distal end of the male valve member 32 that is a contact portion of the female valve 11 with the female valve seat 18. In the recess 32a, a seal member 58 is provided that constitutes a damper member that pushes back the fluid remaining between the female joint 12 and the male joint 14 into the female-side piping channel 48 when the joint is separated.

このように、オス弁１３のオス弁部材３２の、メス弁１１のメス側弁座１８との当接部分に、継手の分離時に、メス継手１２とオス継手１４との間に残存する流体をメス側配管流路４８内に押し戻すシール材５８を設けたので、継手の分離時に、メス継手１２とオス継手１４との間に残存する流体が、外部に漏出するおそれがなく、内部流体が、例えば、薬品、フロンガスなどの場合であっても、環境への影響を及ぼすおそれがない。 As described above, the fluid remaining between the female joint 12 and the male joint 14 at the time of separation of the joint at the contact portion of the male valve member 32 of the male valve 13 with the female side valve seat 18 of the female valve 11. Since the sealing material 58 to be pushed back into the female side pipe flow path 48 is provided, there is no possibility that the fluid remaining between the female joint 12 and the male joint 14 leaks to the outside when the joint is separated. For example, even in the case of chemicals, chlorofluorocarbon, etc., there is no possibility of affecting the environment.

なお、この場合、シール材５８としては、図１２、図１５〜図１８に示したように、メス側弁座１８の先端部分と相補的な形状を有しており、オス弁部材３２の先端の凹部３２ａの底壁３２ｂに配置される基端部５８ａと、オス弁部材３２の先端の凹部３２ａの側壁３２ｃに沿って配置される略三角形状のダンパー部５８ｂとから構成されている。
In this case, as shown in FIGS . 12 and 15 to 18 , the sealing material 58 has a shape complementary to the distal end portion of the female side valve seat 18, and the distal end of the male valve member 32. The base end part 58a arrange | positioned at the bottom wall 32b of the recessed part 32a of this and the substantially triangular-shaped damper part 58b arrange | positioned along the side wall 32c of the recessed part 32a of the front-end | tip of the male valve member 32 are comprised.

なお、この場合、シール材５８は、その弾性力によって、オス弁部材３２の先端の凹部３２ａの側壁３２ｃに嵌着された状態となっている。しかしながら、オス弁部材３２の先端の凹部３２ａの底壁３２ｂとシール材５８との接点部分を接着剤などで固定しても良い。 In this case, the sealing material 58 is fitted into the side wall 32c of the recess 32a at the tip of the male valve member 32 by its elastic force. However, the contact portion between the bottom wall 32b of the recess 32a at the tip of the male valve member 32 and the sealing material 58 may be fixed with an adhesive or the like.

また、シール材５８の材質としては、流体の種類によって適宜変更すれば良く、特に限定されるものではない。例えば、ＮＢＲなどのゴム、フッ素樹脂などを使用することができる。 Further, the material of the sealing material 58 may be appropriately changed depending on the type of fluid, and is not particularly limited. For example, rubber such as NBR, fluorine resin, or the like can be used.

このように構成される本発明の弁付き配管継手１０の使用方法については、図１〜図４の実施例と同様に、図１１〜図１４に基づいて、同様に使用すれば良く、図示するのみで、その説明を省略する。 About the usage method of the pipe joint 10 with a valve | bulb of this invention comprised in this way, what is necessary is just to use similarly based on FIGS. 11-14 similarly to the Example of FIGS. Only the description is omitted.

以下に、本発明の弁付き配管継手１０の継手の分離時に、メス継手１２とオス継手１４との間に残存する流体をメス側配管流路４８内に押し戻すシール材５８の作用について、図１５〜図１８に基づいて説明する。 Hereinafter, the action of the sealing material 58 that pushes back the fluid remaining between the female joint 12 and the male joint 14 into the female-side pipe flow channel 48 when the joint of the pipe joint 10 with valve of the present invention is separated will be described with reference to FIG. Description will be made with reference to FIG.

この実施例の配管継手１０では、図１５〜図１８のように、継手の分離時に、シール材５８の作用によって、メス継手１２とオス継手１４との間に残存する流体をメス側配管流路４８内に押し戻すようになっている。 In the pipe joint 10 of this embodiment, as shown in FIGS. 15 to 18, the fluid remaining between the female joint 12 and the male joint 14 is removed from the female side pipe flow path by the action of the sealing material 58 when the joint is separated. 48 is pushed back into the interior.

すなわち、メス継手１２とオス継手１４とを相互に連結した状態では、図１５に示したように、２つの配管の流路が結合された状態となる。これにより、図１５中、矢印に示したように、メス側流路配管１６のメス側配管流路４８から、オス側流路配管２８の流路４２に、流体が流入するようになっている。 That is, in a state where the female joint 12 and the male joint 14 are connected to each other, as shown in FIG. 15, the flow paths of the two pipes are combined. As a result, as shown by the arrows in FIG. 15, the fluid flows from the female-side piping channel 48 of the female-side channel piping 16 into the channel 42 of the male-side channel piping 28. .

なお、この状態では、図１５に示したように、メス側弁座１８の先端部分１８ａによって、オス弁部材３２の先端の凹部３２ａの側壁３２ｃに沿って、シール材５８のダンパー部５８ｂが押されて、ダンパー部５８ｂが圧縮された状態となっている。 In this state, as shown in FIG. 15, the damper portion 58b of the sealing material 58 is pushed by the tip portion 18a of the female valve seat 18 along the side wall 32c of the recess portion 32a of the tip of the male valve member 32. Thus, the damper portion 58b is in a compressed state.

このため、オス弁部材３２の先端の凹部３２ａ内に設けたシール材５８が、メス弁１１のメス側弁座１８の先端部分１８ａと当接してシールされ、メス側弁座１８とオス弁部材３２との間の間隙Ｓ２に、流体が流入しないようになっている。 For this reason, the sealing material 58 provided in the recessed part 32a of the front-end | tip of the male valve member 32 is contact | abutted and sealed with the front-end | tip part 18a of the female side valve seat 18 of the female valve 11, and the female side valve seat 18 and the male valve member The fluid does not flow into the gap S <b> 2 with 32.

そして、この状態から、メス継手１２とオス継手１４とを相互に分離する際には、先ず、図１６に示したように、メス継手１２とオス継手１４とを相互に分離する方向に移動することによって、オス側弁座３６が後退して（図１６において右側に）移動する。 In this state, when the female joint 12 and the male joint 14 are separated from each other, first, as shown in FIG. 16, the female joint 12 and the male joint 14 are moved in a direction to separate each other. As a result, the male valve seat 36 moves backward (to the right in FIG. 16).

そして、メス継手１２とオス継手１４とを相互にさらに分離する方向に移動させることによって、図１７に示したように、オス弁部材３２が、オス側弁座３６に当接し、流路４２を閉じ、また、矢印に示したように、メス継手１２とオス継手１４との間に残存する流体、すなわち、メス側弁座１８とオス弁部材３２との間の間隙Ｓ３に残存する流体が、オス弁部材３２の先端の凹部３２ａの側壁３２ｃに沿って、圧縮された状態のシール材５８のダンパー部５８ｂがその弾性力で伸びて、シール材５８がいわゆるダンパーとして作用することによって、メス側配管流路４８内に押し戻されるようになっている。 Then, by moving the female joint 12 and the male joint 14 in a direction in which they are further separated from each other, as shown in FIG. 17, the male valve member 32 comes into contact with the male side valve seat 36 and the flow path 42 is formed. As shown by the arrows, the fluid remaining between the female joint 12 and the male joint 14, that is, the fluid remaining in the gap S3 between the female valve seat 18 and the male valve member 32 is The damper portion 58b of the compressed sealing material 58 is stretched by its elastic force along the side wall 32c of the concave portion 32a at the tip of the male valve member 32, so that the sealing material 58 acts as a so-called damper, so that the female side It is pushed back into the piping channel 48.

さらに、メス継手１２とオス継手１４とを相互にさらに分離する方向に移動させることによって、図１８に示したように、メス弁部材２０とメス側弁座１８との間隙Ｓ１に残存する流体が、シール材５８により、さらにメス側配管流路４８内に完全に押し戻され、またメス弁部材２０がメス側弁座１８当接し、流路２６を閉じる。
Furthermore, by moving in a direction to further separate from each other and a female joint 12 and male joint 14, as shown in FIG. 18, the fluid remaining in the gap S1 between the female valve member 20 and the female-side valve seat 18 Then, the seal material 58 is further pushed back into the female side pipe flow path 48, and the female valve member 20 contacts the female side valve seat 18 to close the flow path 26.

また、メス継手１２、オス継手１４の摺動する全ての部分にＯリングを使用しないため、耐久性の高い弁付き継手となる。 Moreover, since an O-ring is not used for all the sliding parts of the female joint 12 and the male joint 14, a highly durable joint with a valve is obtained.

以上、本発明の好ましい実施の態様を説明してきたが、本発明はこれに限定されることはなく、例えば、上記の実施例では、外部からの力で継手の接続状態を保持するタイプとしたが、図示しないが、ロック装置を設け、継手の接続状態の保持または解除を行なっても良いなど本発明の目的を逸脱しない範囲で種々の変更が可能である。 The preferred embodiment of the present invention has been described above, but the present invention is not limited to this. For example, in the above-described embodiment, the connection state of the joint is maintained by an external force. However, although not shown, various modifications can be made without departing from the object of the present invention, such as providing a lock device to hold or release the connection state of the joint.

本発明は、例えば、電気自動車のバッテリモジュールと車体の分離・結合に使用する弁付き配管継手など、２つの配管の流路を結合、分離することが可能で、流体制御手段として弁を備えた弁付き配管継手に適用することができる。 The present invention, for example, can connect and separate the flow paths of two pipes, such as a valve-equipped pipe joint used for separating and connecting a battery module and a vehicle body of an electric vehicle, and includes a valve as a fluid control means. It can be applied to piping joints with valves.

１０配管継手
１１メス弁
１２メス継手
１３オス弁
１４オス継手
１５メス継手本体
１５ａ内壁
１６メス側流路配管
１８メス側弁座
１８ａ先端部分
２０メス弁部材
２０ａ後端部
２２基端部
２４バネ部材
２６開口部
２８オス側流路配管
３０先端部
３２オス弁部材
３２ａ凹部
３２ｂ底壁
３２ｃ側壁
３４オス継手本体
３６オス側弁座
３６ａ先端部
３８基端部
４０バネ部材
４２流路
４４ダイヤフラム
４６均圧孔
４８メス側配管流路
５０空間
５２外部連通孔
５４空間
５６シール材
５６a 摺動面
５８シール材
５８ａ基端部
５８ｂダンパー部
１００配管継手
１０２メス継手
１０４オス継手
１０６メス側流路配管
１０８メス側弁座
１１０メス弁部材
１１２基端部
１１４バネ部材
１１６開口部
１１８オス側流路配管
１２０分岐部
１２２オス弁部材
１２４オス継手本体
１２６オス側弁座
１２８基端部
１３０バネ部材
１３２流路
１３４、１３４’、１３４” Ｏリング
２００配管継手
２０１メス継手本体
２０２メス継手
２０４メス弁部材
２０６ダイヤフラム
２０８バネ部材
２１０カラー部材
Ｓ１間隙
Ｓ２間隙
Ｓ３間隙 DESCRIPTION OF SYMBOLS 10 Piping joint 11 Female valve 12 Female joint 13 Male valve 14 Male joint 15 Female joint main body 15a Inner wall 16 Female side flow pipe 18 Female side valve seat 18a Tip part 20 Female valve member 20a Rear end part 22 Base end part 24 Spring member 26 Opening 28 Male Side Channel Pipe 30 Tip 32 Male Valve Member 32a Recess 32b Bottom Wall 32c Side Wall 34 Male Joint Main Body 36 Male Side Valve Seat 36a Tip 38 Base End 40 Spring Member 42 Channel 44 Diaphragm 46 Equal Pressure Hole 48 Female side piping flow path 50 Space 52 External communication hole 54 Space 56 Sealing material 56a Sliding surface 58 Sealing material 58a Base end portion 58b Damper portion 100 Piping joint 102 Female joint 104 Male joint 106 Female side flow path piping 108 Female side Valve seat 110 Female valve member 112 Base end portion 114 Spring member 116 Opening portion 118 Male side passage pipe 120 Branching portion 1 2 Male valve member 124 Male joint main body 126 Male side valve seat 128 Base end portion 130 Spring member 132 Channel 134, 134 ', 134 "O-ring 200 Piping joint 201 Female joint main body 202 Female joint 204 Female valve member 206 Diaphragm 208 Spring Member 210 collar member S1 gap S2 gap S3 gap

Claims

メス継手とオス継手とから構成される一対の継手と、
前記メス継手内に配設したメス弁部材とメス側弁座から構成されるメス弁と、
前記オス継手内に配設したオス弁部材とオス側弁座からなるオス弁とを備え、
前記メス継手とオス継手とから構成される一対の継手を、相互に連結、または、分離することによって、メス弁とオス弁とを開閉して、２つの配管の流路を結合、分離することが可能な弁付き配管継手であって、
前記メス継手本体とメス弁部材との間に介装したダイヤフラムを備え、
前記メス弁部材が、バネ部材の作用によって、弁閉方向に付勢されるように構成され、
前記ダイヤフラムの外側を大気側と連通させるとともに、ダイヤフラムの内側をメス継手内のメス側配管流路と連通させて、その差圧によって、ダイヤフラムを介して、メス弁部材を弁閉方向に付勢するように構成され、
前記バネ部材の作用による弁閉方向への付勢力と、前記差圧による弁閉方向への付勢力によって、メス弁部材を弁閉方向に付勢するように構成したことを特徴とする弁付き配管継手。 A pair of joints composed of a female joint and a male joint;
A female valve composed of a female valve member and a female valve seat disposed in the female joint;
A male valve member comprising a male valve member and a male valve seat disposed in the male joint,
By connecting or separating a pair of joints composed of the female joint and the male joint to each other, the female valve and the male valve are opened and closed to connect and separate the flow paths of the two pipes. A pipe joint with a valve that can
A diaphragm interposed between the female joint body and the female valve member;
The female valve member is configured to be biased in the valve closing direction by the action of a spring member,
The outside of the diaphragm is communicated with the atmosphere side, and the inside of the diaphragm is communicated with the female side piping passage in the female joint, and the female valve member is biased in the valve closing direction via the diaphragm by the differential pressure. Configured to
With a valve, the female valve member is biased in the valve closing direction by the biasing force in the valve closing direction by the action of the spring member and the biasing force in the valve closing direction by the differential pressure. Piping joint.

前記メス弁のメス側弁座の、オス弁のオス側弁座との当接部分に、継手の分離時に、メス継手とオス継手との間に残存する流体をメス側配管流路内に導くシール材を設けたことを特徴とする請求項１に記載の弁付き配管継手。 When the joint is separated, the fluid remaining between the female joint and the male joint is guided into the female-side piping flow path at the contact portion of the female valve seat of the female valve with the male valve seat of the male valve. The valve-equipped pipe joint according to claim 1, wherein a sealing material is provided.

前記オス弁のオス弁部材の、メス弁のメス側弁座との当接部分に、継手の分離時に、メス継手とオス継手との間に残存する流体をメス側配管流路内に押し戻すシール材を設けたことを特徴とする請求項１に記載の弁付き配管継手。 A seal that pushes back the fluid remaining between the female joint and the male joint into the female-side piping flow path when the joint is separated at the contact portion of the male valve member of the male valve with the female valve seat of the female valve. The valve-equipped pipe joint according to claim 1, wherein a material is provided.