JP3989062B2 - Check valve cartridge - Google Patents

Check valve cartridge Download PDF

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Publication number
JP3989062B2
JP3989062B2 JP27196997A JP27196997A JP3989062B2 JP 3989062 B2 JP3989062 B2 JP 3989062B2 JP 27196997 A JP27196997 A JP 27196997A JP 27196997 A JP27196997 A JP 27196997A JP 3989062 B2 JP3989062 B2 JP 3989062B2
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Japan
Prior art keywords
cartridge
valve seat
valve
check
main body
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JP27196997A
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Japanese (ja)
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JPH1194104A (en
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富久男 中村
啓司 重野
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株式会社日邦バルブ
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Description

【0001】
【産業上の利用分野】
本発明は水道の配管或いは機器の連結部等に挿入して取付け固定して、流体の逆流を防止する逆止弁用カートリッジに関し、さらに詳細に言えば、取り外しが容易にでき、メンテナンスを行うに便宜な逆止弁用カートリッジに関する。さらに本発明は、そのようなカートリッジを用いた逆止弁に関する。
【0002】
【従来の技術】
従来、流体の逆流を防止するための逆止弁としては各種使用されているが、その様な逆止弁の一つとして、例えば水道の配管の途中に挿入して、適宜位置に取付け固定して使用する、カートリッジ式逆止弁がある。ここでは図2に示す例をもって説明する。
【0003】
図2は、逆止弁用カートリッジ21を使用して構成した単式逆止弁1の断面図である。このカートリッジ21は、円環状の弁座部材23と、ハウジング25と、弁体27とを備えている。ハウジング25の底部は、中央のハブ29と、このハブ29から半径方向へ延びる複数本のアーム31と、アーム31の外方端部を連結する底部円環部33とで構成されている。ハウジング25の側部は、この底部円環部33からアーム31に直交する方向に延びる複数本のリブ35により構成され、リブの他端部は弁座部材23を取り付けるための円環状の弁座部材取付け部37に結合している。従って、ハウジング25は、弁座部材23の流体入口あるいは開口24から流入する流体が、リブ35の間及びアーム31の間を通って流れることの出来る非閉鎖状の形態をしている。弁座部材取付け部37の断面形状は図示の如く外側に開いた溝を備えた形状になっている。
【0004】
ハブ29にリブ35と同じ方向に延びてポスト39が形成され、これに弁体27の中央部に形成された盲孔28が嵌合し、弁体27はポスト39に沿って摺動自在になっている。そして付勢手段としてポスト39を囲繞するように配置されたバネ41により、弁座部材23に向けて付勢されている。
【0005】
弁座部材23は、例えばステンレス鋼やりん青銅等の材料で作られた金属製のリング43と、これに一体に被覆成形されたゴム製の被覆体即ちパッキン45とで構成されている。この被覆体45は、弁体27が離着座する封止部47と、金属リング43の内径部を被覆する内径被覆部49と、金属リング43の外側側面を覆う外端面被覆部51とを備え、図示の如く金属リング43を抱き込むように形成されている。また、封止部47の外側には、ハウジングの弁座部材取付け部37の断面形状に対応した形状の取付け部50が形成されており、図示のようにこの弁座部材23はハウジング25に取り付けられる。なお、外端面被覆部51を形成する代わりに、Oリング或いは平パッキンを配置する構成も可能である。
【0006】
符号2はカートリッジ21を内部に収納するケース或いは本体であり、内部に形成された肩部33に、カートリッジ21のハウジング25の底部円環部33が当接して位置決めされ、保持される。符号5は、螺子部7で本体2に結合されたソケットで、螺子部7を締めつけることにより、その当接面6が弁座部材23の外端面被覆部51を押圧し、この部分をソケット5の当接面6と金属リング43と、本体2の内周面11との間で圧縮して封止している。なお、その締めつけ量は、本体2の端面4により制限される。この場合、ソケットの当接面6との間をシールし、上流側の水が本体の端面4とソケットの当接面6との間から漏れるのを防止するばかりでなく、弁体27が封止部47に当接し逆流を防止している場合にも、本体2の内周面11をシールしているので、下流側の水が漏れるのを防止する機能を果たしている。符号8は、直結リング9を介してソケットに取り付けられた袋ナットである。本体2の外螺子部及び袋ナット8の内螺子部にはそれぞれ他の配管或いは機器が取り付けられる。
【0007】
【発明が解決しようとする課題】
上記の如き構成にかかる従来の逆止弁用カートリッジ21においては、カートリッジ21のメンテナンスを行う為にソケット5を外しても、パッキン45あるいはOリング、平パッキン等がきつく本体に嵌まっており、また、パッキン等の本体2の端面4からの突出している部分も封止時の圧縮代だけであるのできわめて短く、このカートリッジ21を外そうとしても容易に外すことが出来ない。従って、本体2に取り付けられている配管或いは機器との結合も外す必要が生じる。しかし、このタイプのカートリッジ21は、図示の例の様な形での使用ばかりではなく、配管の色々の部分に使用され、例えば図示の本体2の代わりにもっと長い管状部材の端部に取り付けられる場合もあり、そのような場合、この部材に結合された配管あるいは機器を外しても、逆止弁21の取り外しは容易ではない。
【0008】
本発明は上記問題点に鑑みなされたものであり、取り付けた配管或いは機器から容易に取り外しの出来る逆止弁用カートリッジを提供することを目的とする。また、そのようなカートリッジを用いた逆止弁を提供するもその目的である。
【0009】
【課題を解決するための手段】
上記課題を解決するために本発明は、貫通孔を有する筒状部を備えたケースと、ケースの貫通孔に挿入される逆止カートリッジ本体と、逆止カートリッジ本体をケース本体に取付ける、筒状部を有する取付け部材とを備えた逆止弁を提供する。その逆止カートリッジ本体は、非閉鎖型のハウジングと、該ハウジングの一端側開口部に設けられた弁座部材と、ハウジング内に収納された弁体と、該弁体を弁座部材に向けて付勢するバネとを備える。そしてその逆止カートリッジ本体は、弁座部材側において取付け部材の筒状部内側に形成されたカートリッジ嵌合部に嵌り、弁座部材と反の対側からケースの貫通孔に挿入され、取付け部材はケースの筒状部にネジ結合により着脱自在に取付けられる。
【0010】
上記課題を解決するために本発明はさらに、水道の配管或いは機器の接続部に挿入して使用する、改良された逆止弁用カートリッジを提供する。その逆止弁用カートリッジは、配管或いは機器の接続部に挿入される逆止カートリッジ本体と、逆止カートリッジ本体を配管或いは機器の接続部に取付けるための、筒状部を有する取付け部材とを備えている。逆止カートリッジ本体は、非閉鎖型のハウジングと、該ハウジングの一端側開口部に設けられた弁座部材と、ハウジング内に収納された弁体と、該弁体を弁座部材に向けて付勢するバネとを備えている。そして逆止カートリッジ本体は、弁座部材側において取付け部材の筒状部内側に形成されたカートリッジ嵌合部に嵌り、弁座部材と反対の側から配管又は機器の接続部に挿入され、取付け部材は記配管或いは機器の接続部にネジ結合により着脱自在に取付けられるようになっている。
【0011】
さらに具体的な実施の形態では、取付け部材の筒状部に取付け嵌合部が形成され、取付け部材は、該取付け嵌合部が配管又は機器の接続部の孔に挿入されることにより配管または機器の接続部に取付けられる。さらに具体的には、取付け部材の取付け嵌合部にはおねじが形成され、該おねじが配管または機器の接続部に形成されためねじに螺合するようになっている。
他の具体的実施の形態では、そのカートリッジ本体は、取付け部材のカートリッジ嵌合部に取外し可能に嵌っている。さらには、その弁座部材は、弁体が離着座するゴム製の弁座部を備え、弁座部材はさらに、弁座部と一体に形成され、径方向外方へ拡がる拡径部を備え、この拡径部が、取付け部材のカートリッジ嵌合部内周に形成された円周方向に延びる溝に嵌るようになっている。
【0012】
【実施の形態】
以下、図面に基づき本願発明の具体的実施の形態を説明するが、本願発明の範囲は以下に説明される実施の形態に限定されるのではない。
【0013】
図1は、本発明の具体的実施の形態にかかる逆止弁用カートリッジ71を使用して構成した単式逆止弁61の断面図である。なお、図2の従来例と同様の部材には同じ参照番号を使用し、その詳細な説明は省略する。
【0014】
このカートリッジ71はカートリッジ本体72と取付け部材としてのカバー体73とからなり、そのカートリッジ本体72は、図2の従来例のカートリッジ21と同様の部材を備えている。即ちカートリッジ本体72は、ハブ29、アーム31、底部円環部33、リブ35、弁座部材取付け部37、ポスト39等を備えたハウジング25と、このハウジング25の弁座部材取付け部37に取付けられる、金属リング43と、弁座部となる封止部47、内径被覆部49、外端被覆部51とを備えた被覆体45とから構成される弁座部材23と、ポスト39に案内される弁体27と、付勢手段としてのバネ41とを備えている。
【0015】
本実施の形態におけるカートリッジ71は、さらに、取付け部材としての大略リング状のカバー体73を備えている。カバー体73は、第1の円環部75を備え、その中心部の孔76は弁座部材23の開口24に通じている。第2の円環部79が第1の円環部75に連接して設けられている。この第2の円環部79の内周80の寸法は、孔76のそれよりも大きい。カバー体73はさらに、第1の円環部75から第2の円環部79と反対側の側面側で外方へ広がるフランジ83を備えている。そして図示のように、第2の円環部79の内周80は、弁座部材23の外端被覆部51の外周部から金属リング43の外周部を越えて被覆体45或いは弁座部材23の外周部に嵌合している。他方、第1の円環部75の第2の円環部79側の側面は、外端被覆部51の外側面に当接する当接面77となる。
【0016】
上記のように構成されたカートリッジ71を、従来例と同じように本体2内に挿入する。その際、カバー体73の第1円環部と第2円環部の外周に形成された雄ねじ88と、本体2の内周側に形成された雌ねじ89を螺合させて、カートリッジ71を本体2内に進入させる。そして、ハウジング25の底部円環部33を本体2内部の肩部3に当接させ、また、弁座部材の被覆体45の外端被覆部51を圧縮する。これにより、カバー体73の第2円環部79の内周部80と、第1円環部75の当接面77は封止される。フランジ83はその内側面84が本体2の端面4に当接して、カートリッジ71の本体2内への進入を制限する。符号85は、カバー体73と本体2の螺合する螺子部に配置されたシール用のOリングである。
【0017】
ソケット5は、その従来例と同じように螺子部7において本体2に取り付けられる。その際、カバー体73の第1円環部75の外側面78に形成された溝に収受されたOリング87を圧縮してこの部分で封止する。
【0018】
なお、図1に示される弁座部材23の被覆体45の外端被覆部51の外径を更に大きく拡大し、この部分に対応するカバー体73の内周部分に円周方向に延びる溝を形成し、この溝に外端被覆部51の拡大した部分を嵌め込むようにすることもでき、これにより、カバー体73と弁座部材23との結合がより確かなものとなり、取付け或いは取り外し作業中の相互の脱落がより確実に防止できる。
【0019】
【発明の効果】
以上説明したとおり、本願発明に係る逆止弁用カートリッジにおいては、従来のカートリッジとは異なり、弁座部材のシール部の外周及び外端面部を封止するように機能するカバー体を設け、このカバー体を以て例えば配管端部に取り付けるようにしたので、カートリッジの取り外しが容易にでき、メンテナンス作業或いはカートリッジの交換作業を行う上できわめて便利である。
【図面の簡単な説明】
【図1】本発明の実施の形態に係る逆止弁用カートリッジを使用した単式逆止弁の断面図である。
【図2】従来の逆止弁用カートリッジを使用した単式逆止弁の断面図である。
【符号の説明】
61 単式逆止弁
71 逆止弁用カートリッジ
23 弁座部材
25 ハウジング
27 弁体
41 バネ
51 外端被覆部(シール部)
73 カバー体(取付け部材)
75 第1の円環部
75 第2の円環部
83 フランジ
87 雄ねじ(取付け部)
[0001]
[Industrial application fields]
The present invention relates to a check valve cartridge which is inserted into a water supply pipe or a connecting part of an apparatus and fixed to prevent a back flow of fluid, and more specifically, can be easily removed and maintained. The present invention relates to a convenient check valve cartridge. The invention further relates to a check valve using such a cartridge.
[0002]
[Prior art]
Conventionally, various check valves have been used to prevent fluid backflow, but one such check valve is, for example, inserted in the middle of a plumbing pipe and fixed at an appropriate position. There is a cartridge type check valve. Here, description will be made with the example shown in FIG.
[0003]
FIG. 2 is a cross-sectional view of the single check valve 1 configured using the check valve cartridge 21. The cartridge 21 includes an annular valve seat member 23, a housing 25, and a valve body 27. The bottom portion of the housing 25 includes a central hub 29, a plurality of arms 31 extending in the radial direction from the hub 29, and a bottom annular portion 33 that connects the outer ends of the arms 31. A side portion of the housing 25 is constituted by a plurality of ribs 35 extending in a direction orthogonal to the arm 31 from the bottom annular portion 33, and the other end portion of the rib is an annular valve seat for attaching the valve seat member 23. It is connected to the member mounting portion 37. Therefore, the housing 25 has a non-closed shape in which the fluid flowing in from the fluid inlet or the opening 24 of the valve seat member 23 can flow between the ribs 35 and between the arms 31. The cross-sectional shape of the valve seat member mounting portion 37 is a shape having a groove opened outward as shown in the figure.
[0004]
A post 39 is formed in the hub 29 so as to extend in the same direction as the rib 35, and a blind hole 28 formed in the central portion of the valve body 27 is fitted therein, so that the valve body 27 is slidable along the post 39. It has become. And it is urged | biased toward the valve seat member 23 by the spring 41 arrange | positioned so that the post | mailbox 39 may be surrounded as an urging means.
[0005]
The valve seat member 23 includes a metal ring 43 made of, for example, a material such as stainless steel or phosphor bronze, and a rubber cover or packing 45 integrally formed thereon. The covering body 45 includes a sealing portion 47 on which the valve body 27 is attached and detached, an inner diameter covering portion 49 that covers the inner diameter portion of the metal ring 43, and an outer end surface covering portion 51 that covers the outer side surface of the metal ring 43. As shown, the metal ring 43 is formed so as to be held. A mounting portion 50 having a shape corresponding to the cross-sectional shape of the valve seat member mounting portion 37 of the housing is formed outside the sealing portion 47, and the valve seat member 23 is attached to the housing 25 as shown in the figure. It is done. In addition, the structure which arrange | positions an O-ring or a flat packing instead of forming the outer end surface coating | coated part 51 is also possible.
[0006]
Reference numeral 2 denotes a case or main body for accommodating the cartridge 21 therein, and the bottom annular portion 33 of the housing 25 of the cartridge 21 is brought into contact with a shoulder portion 33 formed therein to be positioned and held. Reference numeral 5 denotes a socket connected to the main body 2 by the screw portion 7. When the screw portion 7 is tightened, the contact surface 6 presses the outer end surface covering portion 51 of the valve seat member 23, and this portion is connected to the socket 5. The contact surface 6, the metal ring 43, and the inner peripheral surface 11 of the main body 2 are compressed and sealed. The tightening amount is limited by the end face 4 of the main body 2. In this case, the space between the contact surface 6 of the socket is sealed to prevent the upstream water from leaking from between the end surface 4 of the main body and the contact surface 6 of the socket, and the valve body 27 is sealed. Even when the stopper 47 abuts against the backflow to prevent backflow, the inner peripheral surface 11 of the main body 2 is sealed, so that the downstream side water is prevented from leaking. Reference numeral 8 denotes a cap nut attached to the socket via the direct connection ring 9. Other pipes or devices are attached to the outer screw portion of the main body 2 and the inner screw portion of the cap nut 8, respectively.
[0007]
[Problems to be solved by the invention]
In the conventional check valve cartridge 21 having the above-described configuration, even if the socket 5 is removed for maintenance of the cartridge 21, the packing 45, the O-ring, the flat packing, etc. are fitted into the tight body. Further, the portion of the packing or the like that protrudes from the end surface 4 of the main body 2 is also only a compression allowance at the time of sealing, so it is very short and cannot be easily removed even if the cartridge 21 is to be removed. Therefore, it is necessary to remove the connection with the pipe or device attached to the main body 2. However, this type of cartridge 21 is used not only in the form of the illustrated example, but also in various parts of the piping, for example attached to the end of a longer tubular member instead of the illustrated body 2. In such a case, the removal of the check valve 21 is not easy even if the piping or equipment coupled to this member is removed.
[0008]
The present invention has been made in view of the above problems, and an object of the present invention is to provide a check valve cartridge that can be easily detached from attached piping or equipment. Another object is to provide a check valve using such a cartridge.
[0009]
[Means for Solving the Problems]
In order to solve the above problems, the present invention provides a case having a cylindrical portion having a through hole, a non-return cartridge main body inserted into the through-hole of the case, and a non-return cartridge main body attached to the case main body. And a check valve having a mounting member. The non-return cartridge main body includes a non-closed housing, a valve seat member provided in an opening at one end of the housing, a valve body housed in the housing, and the valve body facing the valve seat member. And an urging spring. The non-return cartridge main body is fitted into a cartridge fitting portion formed inside the cylindrical portion of the mounting member on the valve seat member side, and is inserted into the through hole of the case from the opposite side to the valve seat member. Is detachably attached to the cylindrical portion of the case by screw connection.
[0010]
In order to solve the above-mentioned problems, the present invention further provides an improved check valve cartridge which is used by being inserted into a water supply pipe or a connection part of a device. The check valve cartridge includes a check cartridge main body to be inserted into a pipe or device connection, and a mounting member having a cylindrical portion for mounting the check cartridge main body to the pipe or device connection. ing. The non-return cartridge body is attached to a non-closed housing, a valve seat member provided in an opening at one end of the housing, a valve body housed in the housing, and the valve body facing the valve seat member. And a spring. The non-return cartridge body is fitted into a cartridge fitting portion formed inside the cylindrical portion of the mounting member on the valve seat member side, and is inserted into a pipe or a connecting portion of equipment from the side opposite to the valve seat member. Is detachably attached to the connecting portion of the piping or equipment by screw connection.
[0011]
In a more specific embodiment, an attachment fitting portion is formed in the tubular portion of the attachment member, and the attachment member is inserted into the hole of the connection portion of the pipe or the device by inserting the attachment fitting portion. It is attached to the connection part of equipment. More specifically, a male screw is formed in the attachment fitting portion of the attachment member, and the male screw is formed in the connection portion of the pipe or the device, so that it is screwed into the screw.
In another specific embodiment, the cartridge body is detachably fitted to the cartridge fitting portion of the mounting member. Further, the valve seat member includes a rubber valve seat portion on which the valve body is attached and detached, and the valve seat member is further formed with the valve seat portion so as to be integrated with the valve seat portion so as to expand radially outward. The enlarged diameter portion is adapted to fit in a circumferentially extending groove formed on the inner periphery of the cartridge fitting portion of the mounting member.
[0012]
[Embodiment]
Hereinafter, specific embodiments of the present invention will be described with reference to the drawings. However, the scope of the present invention is not limited to the embodiments described below.
[0013]
FIG. 1 is a cross-sectional view of a single type check valve 61 configured using a check valve cartridge 71 according to a specific embodiment of the present invention. The same reference numerals are used for the same members as those in the conventional example of FIG. 2, and the detailed description thereof is omitted.
[0014]
The cartridge 71 includes a cartridge main body 72 and a cover body 73 as an attachment member, and the cartridge main body 72 includes the same members as those of the conventional cartridge 21 shown in FIG. That is, the cartridge main body 72 is attached to the housing 25 having the hub 29, the arm 31, the bottom annular portion 33, the rib 35, the valve seat member attaching portion 37, the post 39, and the valve seat member attaching portion 37 of the housing 25. The valve ring member 23 is composed of a metal ring 43 and a covering body 45 including a sealing portion 47 serving as a valve seat portion, an inner diameter covering portion 49, and an outer end covering portion 51, and a post 39. And a spring 41 as urging means.
[0015]
The cartridge 71 in the present embodiment further includes a generally ring-shaped cover body 73 as an attachment member. The cover body 73 includes a first annular portion 75, and a hole 76 at the center thereof communicates with the opening 24 of the valve seat member 23. A second annular portion 79 is provided so as to be connected to the first annular portion 75. The dimension of the inner circumference 80 of the second annular portion 79 is larger than that of the hole 76. The cover body 73 further includes a flange 83 that extends outward from the first annular portion 75 on the side surface opposite to the second annular portion 79. As shown in the figure, the inner periphery 80 of the second annular portion 79 extends from the outer peripheral portion of the outer end covering portion 51 of the valve seat member 23 to the outer peripheral portion of the metal ring 43, or the covering 45 or the valve seat member 23. Is fitted to the outer periphery of the. On the other hand, the side surface of the first annular portion 75 on the second annular portion 79 side is a contact surface 77 that contacts the outer surface of the outer end covering portion 51.
[0016]
The cartridge 71 configured as described above is inserted into the main body 2 as in the conventional example. At that time, the male screw 88 formed on the outer periphery of the first annular portion and the second annular portion of the cover body 73 and the female screw 89 formed on the inner peripheral side of the main body 2 are screwed together to thereby attach the cartridge 71 to the main body. Enter 2 Then, the bottom annular portion 33 of the housing 25 is brought into contact with the shoulder portion 3 inside the main body 2 and the outer end covering portion 51 of the cover 45 of the valve seat member is compressed. As a result, the inner peripheral portion 80 of the second annular portion 79 of the cover body 73 and the contact surface 77 of the first annular portion 75 are sealed. The inner surface 84 of the flange 83 abuts against the end surface 4 of the main body 2 to restrict the cartridge 71 from entering the main body 2. Reference numeral 85 denotes a sealing O-ring disposed in a screw portion in which the cover body 73 and the main body 2 are screwed together.
[0017]
The socket 5 is attached to the main body 2 at the screw portion 7 as in the conventional example. At that time, the O-ring 87 received in the groove formed in the outer surface 78 of the first annular portion 75 of the cover body 73 is compressed and sealed at this portion.
[0018]
In addition, the outer diameter of the outer end covering portion 51 of the covering body 45 of the valve seat member 23 shown in FIG. 1 is further enlarged, and a groove extending in the circumferential direction is formed in the inner peripheral portion of the cover body 73 corresponding to this portion. It is also possible to insert the enlarged portion of the outer end covering portion 51 into this groove, thereby making the connection between the cover body 73 and the valve seat member 23 more reliable, and mounting or removing work. It is possible to more reliably prevent the inside from falling out.
[0019]
【The invention's effect】
As described above, in the check valve cartridge according to the present invention, unlike the conventional cartridge, a cover body that functions to seal the outer periphery and the outer end surface of the seal portion of the valve seat member is provided. Since the cover body is attached to, for example, the end portion of the pipe, the cartridge can be easily removed, which is very convenient for maintenance work or cartridge replacement work.
[Brief description of the drawings]
FIG. 1 is a sectional view of a single type check valve using a check valve cartridge according to an embodiment of the present invention.
FIG. 2 is a sectional view of a single type check valve using a conventional check valve cartridge.
[Explanation of symbols]
61 Single Check Valve 71 Check Valve Cartridge 23 Valve Seat Member 25 Housing 27 Valve Element 41 Spring 51 Outer End Covering Part (Seal Part)
73 Cover body (attachment member)
75 1st ring part 75 2nd ring part 83 Flange 87 Male thread (attachment part)

Claims (6)

貫通孔を有する筒状部を備えたケースと、前記ケースの貫通孔に挿入される逆止カートリッジ本体と、前記逆止カートリッジ本体を前記ケース本体に取付ける、筒状部を有する取付け部材とを備え、前記逆止カートリッジ本体は、非閉鎖型のハウジングと、該ハウジングの一端側開口部に設けられた弁座部材と、前記ハウジング内に収納された弁体と、該弁体を前記弁座部材に向けて付勢するバネとを備え、前記逆止カートリッジ本体は、前記弁座部材側において前記取付け部材の筒状部内側に形成されたカートリッジ嵌合部に嵌り、前記弁座部材と反対の側から前記ケースの前記貫通孔に挿入され、前記取付け部材が前記ケースの前記筒状部にネジ結合により着脱自在に取付けられることを特徴とする、逆止弁。 A case having a cylindrical portion having a through hole, a check cartridge main body inserted into the through hole of the case, and an attachment member having a cylindrical portion for attaching the check cartridge main body to the case main body. The check cartridge body includes a non-closed housing, a valve seat member provided at an opening on one end of the housing, a valve body housed in the housing, and the valve body as the valve seat member. And the non-return cartridge main body is fitted in a cartridge fitting portion formed on the inside of the cylindrical portion of the mounting member on the valve seat member side, and is opposite to the valve seat member. The check valve is inserted from the side into the through hole of the case, and the attachment member is detachably attached to the cylindrical portion of the case by screw connection. 請求項1記載の逆止弁おいて、前記カートリッジ本体は、前記取付け部材の前記カートリッジ嵌合部に取外し可能に嵌っていることを特徴とする、逆止弁用カートリッジ。2. The check valve cartridge according to claim 1, wherein the cartridge body is detachably fitted to the cartridge fitting portion of the mounting member. 請求項2記載の逆止弁において、前記弁座部材は、前記弁体が離着座するゴム製の弁座部を備え、前記弁座部材はさらに、前記弁座部と一体に形成され、径方向外方へ拡がる拡径部を備え、前記取付け部材の前記カートリッジ嵌合部内周には前記拡径部が嵌る円周方向に延びる溝が形成されていることを特徴とする、逆止弁用カートリッジ。3. The check valve according to claim 2, wherein the valve seat member includes a rubber valve seat portion on which the valve body is attached and detached, and the valve seat member is further formed integrally with the valve seat portion, and has a diameter. A check valve is provided, wherein a groove extending in a circumferential direction in which the enlarged diameter portion is fitted is formed in an inner circumference of the cartridge fitting portion of the attachment member. cartridge. 水道の配管或いは機器の接続部に挿入して使用する逆止弁用カートリッジにおいて、前記逆止弁用カートリッジは、前記配管或いは機器の接続部に挿入される逆止カートリッジ本体と、前記逆止カートリッジ本体を前記配管或いは機器の接続部に取付ける、筒状部を有する取付け部材とを備え、前記逆止カートリッジ本体は、非閉鎖型のハウジングと、該ハウジングの一端側開口部に設けられた弁座部材と、前記ハウジング内に収納された弁体と、該弁体を前記弁座部材に向けて付勢するバネとを備え、前記逆止カートリッジ本体は、前記弁座部材側において前記取付け部材の筒状部内側に形成されたカートリッジ嵌合部に嵌り、前記弁座部材と反対の側から前記配管又は機器の接続部に挿入され、前記取付け部材が前記配管或いは機器の接続部にネジ結合により着脱自在に取付けられることを特徴とする、逆止弁用カートリッジ。 A check valve cartridge used by being inserted into a water supply pipe or a device connection portion, wherein the check valve cartridge includes a check cartridge main body inserted into the pipe or device connection portion, and the check cartridge. A non-closed housing and a valve seat provided at an opening on one end side of the housing. A member, a valve body housed in the housing, and a spring for urging the valve body toward the valve seat member, wherein the check cartridge main body includes a mounting member on the valve seat member side. fitted into the cartridge fitting portion formed in the inner cylindrical portion is inserted from the side opposite to the valve seat member to the connecting portion of the pipe or equipment, contact the mounting member of the pipe or equipment Characterized in that it is detachably attached by a screw connection to the part, a cartridge check valve. 請求項4記載の逆止弁用カートリッジにおいて、前記カートリッジ本体は、前記取付け部材の前記カートリッジ嵌合部に取外し可能に嵌っていることを特徴とする、逆止弁用カートリッジ。5. The check valve cartridge according to claim 4 , wherein the cartridge main body is detachably fitted to the cartridge fitting portion of the mounting member. 請求項5記載の逆止弁用カートリッジにおいて、前記弁座部材は、前記弁体が離着座するゴム製の弁座部を備え、前記弁座部材はさらに、前記弁座部と一体に形成され、径方向外方へ拡がる拡径部を備え、前記取付け部材の前記カートリッジ嵌合部内周には前記拡径部が嵌る円周方向に延びる溝が形成されていることを特徴とする、逆止弁用カートリッジ。  6. The check valve cartridge according to claim 5, wherein the valve seat member includes a rubber valve seat portion on which the valve body is attached and detached, and the valve seat member is further formed integrally with the valve seat portion. A non-return check comprising a diameter-expanding portion extending radially outward, and a groove extending in a circumferential direction in which the diameter-expanding portion is fitted is formed on an inner periphery of the cartridge fitting portion of the attachment member. Valve cartridge.
JP27196997A 1997-09-19 1997-09-19 Check valve cartridge Expired - Lifetime JP3989062B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP27196997A JP3989062B2 (en) 1997-09-19 1997-09-19 Check valve cartridge

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP27196997A JP3989062B2 (en) 1997-09-19 1997-09-19 Check valve cartridge

Publications (2)

Publication Number Publication Date
JPH1194104A JPH1194104A (en) 1999-04-09
JP3989062B2 true JP3989062B2 (en) 2007-10-10

Family

ID=17507340

Family Applications (1)

Application Number Title Priority Date Filing Date
JP27196997A Expired - Lifetime JP3989062B2 (en) 1997-09-19 1997-09-19 Check valve cartridge

Country Status (1)

Country Link
JP (1) JP3989062B2 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2013151789A (en) * 2012-01-24 2013-08-08 Nippo Valve Co Ltd Meter bypass unit
JP7123699B2 (en) * 2018-08-29 2022-08-23 株式会社テイエルブイ Float check valve

Also Published As

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JPH1194104A (en) 1999-04-09

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