JP2019108987A

JP2019108987A - Stop valve

Info

Publication number: JP2019108987A
Application number: JP2019039198A
Authority: JP
Inventors: 元井村; Hajime Imura; 浩成森部; Hiroshige Moribe
Original assignee: Onda Mfg Co Ltd
Current assignee: Onda Mfg Co Ltd
Priority date: 2019-03-05
Filing date: 2019-03-05
Publication date: 2019-07-04
Anticipated expiration: 2035-02-20
Also published as: JP6729734B2

Abstract

To provide a stop valve which enables easy attachment and detachment of a member for inhibiting removal of a valve member and achieves simplification of a structure, downsizing, and facilitation of manufacturing.SOLUTION: A stop valve 1 includes: a faucet body 2; and a valve member 4. The faucet body 2 is provided with a housing part 3. A holding member 5 is attached to the housing part 3. The holding member 5 has a restriction part 51 and a cover part 52. An engaging part 521 is provided at one of the cover part 52 of the holding member 5 and an outer peripheral surface 300 of the housing part 3. A guide part 31 which guides the engaging part 521 and an engaged part 32 which communicates with the guide part 31 and is engaged with the engaging part 521 are provided at the other. In the holding member 5 and the housing part 3, the engaging part 521 provided at the one of the holding member 5 and the housing part 3 is guided by the guide part 31 provided at the other and engaged with the engaged part 32.SELECTED DRAWING: Figure 3

Description

本発明は、止水栓に関する。 The present invention relates to a water stop valve.

従来、配管等の途中に設けられ、水等の流体の流通を止めたり、流体の流量を調整したりするための止水栓が知られている。止水栓は、流体を流通させる流路を内部に設けた水栓本体と、水栓本体の流路を開閉可能に構成された弁部材とを備えている。弁部材は、こま式やボール式の弁体、その弁体に連結された弁軸（スピンドル）等を含んで構成されている。水栓本体には、弁部材を内側に収容する筒状の収容部が設けられている。 BACKGROUND Conventionally, a water stop valve is known which is provided in the middle of piping or the like to stop the flow of fluid such as water or adjust the flow rate of the fluid. The water stop valve includes a faucet main body in which a flow path for fluid flow is provided, and a valve member configured to be able to open and close the flow path of the faucet main body. The valve member includes a top or ball type valve body, a valve shaft (spindle) connected to the valve body, and the like. The faucet main body is provided with a cylindrical accommodating portion for accommodating the valve member inside.

弁部材を収容する収容部には、弁部材の抜け出しを抑制する部材が取り付けられている。例えば、特許文献１には、収容部の内周面に形成したネジ部にネジ部材を螺合固定し、このネジ部材によって収容部から弁部材の抜け出しを抑制する止水栓が開示されている。また、特許文献２には、収容部の内周面に形成した環状凹溝にＣリングを装着し、このＣリングによって収容部から弁部材の抜け出しを抑制する止水栓が開示されている。 A member for suppressing the removal of the valve member is attached to the housing portion for housing the valve member. For example, Patent Document 1 discloses a water stop valve in which a screw member is screwed and fixed to a screw portion formed on the inner peripheral surface of the housing portion, and the screw member suppresses the detachment of the valve member from the housing portion. . Further, Patent Document 2 discloses a water stop valve in which a C ring is mounted in an annular recessed groove formed in the inner peripheral surface of the housing portion, and the C ring suppresses the detachment of the valve member from the housing portion.

特開２００４−２９３０９６号公報JP 2004-293096 A 特開２０１４−１４９００１号公報JP 2014-149001

しかしながら、前記特許文献１の止水栓では、収容部の内周面のネジ部にネジ部材を螺合する。そのため、ネジ部材の取り付け及び取り外しが非常に煩雑となる。また、樹脂成形では、収容部の内周面にネジ部を成形することが困難である。そのため、収容部を含む水栓本体全体を一体的に樹脂成形することが困難である。 However, in the water stop valve of Patent Document 1, the screw member is screwed into the screw portion of the inner peripheral surface of the housing portion. Therefore, attachment and removal of a screw member become very complicated. Moreover, in resin molding, it is difficult to mold a screw portion on the inner peripheral surface of the housing portion. Therefore, it is difficult to integrally resin mold the entire faucet main body including the housing portion.

また、前記特許文献２の止水栓では、Ｃリングの着脱に専用の工具が必要となるため、Ｃリングの着脱が非常に煩雑となる。また、樹脂成形では、Ｃリングを装着する環状凹溝がアンダーカット形状となるため、収容部の内周面に環状凹溝を成形することが困難である。そのため、収容部を含む水栓本体全体を一体的に樹脂成形することが困難である。 Moreover, in the water stop valve of the said patent document 2, since a tool for exclusive use is needed for attachment or detachment of C ring, attachment or detachment of C ring becomes very complicated. In resin molding, since the annular ditch which mounts C ring serves as undercut shape, it is difficult to shape an annular ditch in the inner skin of a seat. Therefore, it is difficult to integrally resin mold the entire faucet main body including the housing portion.

本発明は、かかる背景に鑑みてなされたものであり、弁部材の抜け出しを抑制する部材の取り付け及び取り外しが容易であり、かつ、構造簡素化、小型化、製造容易化を図ることができる止水栓を提供しようとするものである。 The present invention has been made in view of the above background, and it is easy to attach and remove a member for suppressing the valve member from coming off, and structure simplification, downsizing and manufacturing simplification can be achieved. It is an attempt to provide a faucet.

本発明の止水栓は、流体を流通させる流路を内部に設けた水栓本体と、該水栓本体の前記流路を開閉可能に構成された弁部材とを備え、前記水栓本体には、軸方向の一端を開口し、前記弁部材を内側に収容する筒状の収容部が設けられ、該収容部の開口側の端部には、前記収容部の内側に収容された前記弁部材を保持する保持部材が取り付けられ、該保持部材は、前記弁部材における前記収容部の開口側への移動を規制する規制部と、前記収容部の外周面を覆う被覆部とを有し、前記保持部材の前記被覆部及び前記収容部の前記外周面のうち、一方には、係止部が設けられ、他方には、前記係止部を案内する案内部と、該案内部に連通し、前記係止部が係止される被係止部とが設けられ、前記保持部材と前記収容部とは、一方に設けられた前記係止部が他方に設けられた前記案内部を介して案内され、前記被係止部に係止されている。 The water stop valve according to the present invention includes a water faucet body provided with a flow path for fluid flow therein, and a valve member configured to be able to open and close the flow path of the water faucet body, and the water faucet body A cylindrical accommodating portion is provided which opens at one end in the axial direction and accommodates the valve member on the inner side, and the opening side end portion of the accommodating portion is the valve housed inside the accommodating portion. A holding member for holding the member is attached, and the holding member has a restricting portion for restricting the movement of the valve member to the opening side, and a covering portion covering an outer peripheral surface of the accommodating portion. A locking portion is provided on one of the covering portion of the holding member and the outer peripheral surface of the housing portion, and a guide portion for guiding the locking portion is in communication with the other portion on the other side. And a locked portion to which the locking portion is locked, and the holding member and the housing portion are provided on one side. The locking portion is guided through the guide portion provided in the other, the is engaged with the engaged portion.

前記止水栓において、水栓本体における収容部の開口側の端部には、弁部材を保持する保持部材が取り付けられている。保持部材と収容部とは、一方に設けられた係止部が他方に設けられた案内部を介して案内され、被係止部に係止されている。すなわち、係止部を被係止部に係止させるという簡易な構造で、保持部材が収容部に取り付けられている。 In the water stop valve, a holding member for holding the valve member is attached to the open end of the housing portion of the water faucet body. In the holding member and the housing portion, the locking portion provided on one side is guided through the guide portion provided on the other, and is locked to the locked portion. That is, the holding member is attached to the housing portion with a simple structure in which the locking portion is locked to the locked portion.

そのため、従来のネジ式やＣリング式の取り付け構造と比較して、収容部からの弁部材の抜け出しを抑制する部材（保持部材）の取り付けが非常に容易となる。また、保持部材の取り付け後、その保持部材の取り外しも非常に容易であるため、メンテナンス作業を行いやすくなる。 Therefore, compared with the conventional screw type and C ring type attachment structure, attachment of the member (holding member) which suppresses the removal of the valve member from a accommodating part becomes very easy. In addition, since it is very easy to remove the holding member after the holding member is attached, the maintenance work can be facilitated.

また、保持部材の取り付け構造を簡易としたことにより、収容部や収容部を含めた水栓本体全体の小型化を図ることができる。また、従来のように、収容部にネジ部やＣリングを装着する環状凹溝を設ける必要がないため、収容部を樹脂等で成形することができる。これにより、収容部を含めた水栓本体全体を樹脂等で一体的に成形することが可能となり、水栓本体の構造簡素化、製造容易化を図ることができる。 In addition, by simplifying the mounting structure of the holding member, it is possible to miniaturize the entire faucet main body including the housing portion and the housing portion. Moreover, since it is not necessary to provide an annular ditch which mounts a screw part or a C ring in the housing portion as in the prior art, the housing portion can be formed of resin or the like. As a result, the entire faucet main body including the housing portion can be integrally formed of resin or the like, and the structure of the faucet main body can be simplified and the manufacture can be facilitated.

また、保持部材は、弁部材における収容部の開口側への移動を規制する（弁部材が収容部から抜け出す方向に移動することを抑制する）規制部を有する。そのため、収容部に取り付けられた保持部材（特に規制部）によって、弁部材が収容部から抜け出すことを十分に抑制できる。 In addition, the holding member has a restricting portion that restricts the movement of the housing portion of the valve member to the opening side (suppressing the movement of the valve member in the direction of coming out of the housing portion). Therefore, it is possible to sufficiently suppress the valve member from coming out of the housing portion by the holding member (in particular, the regulation portion) attached to the housing portion.

このように、本発明によれば、弁部材の抜け出しを抑制する部材の取り付け及び取り外しが容易であり、かつ、構造簡素化、小型化、製造容易化を図ることができる止水栓を提供することができる。 Thus, according to the present invention, it is possible to provide a water stop valve which is easy to attach and remove a member for suppressing the valve member from coming off and which can simplify the structure, reduce the size and facilitate the manufacture. be able to.

前記止水栓において、前記保持部材の前記被覆部には、前記係止部が設けられ、前記収容部の前記外周面には、前記案内部と前記被係止部とが設けられていてもよい。この場合には、水栓本体の収容部に対する保持部材の取り付け及び取り外しが非常に容易となる。 In the water stop valve, the covering portion of the holding member is provided with the locking portion, and the outer circumferential surface of the housing portion is provided with the guiding portion and the locked portion. Good. In this case, attachment and removal of the holding member with respect to the accommodation portion of the faucet body is very easy.

また、前記収容部の前記外周面には、前記係止部が設けられ、前記保持部材の前記被覆部には、前記案内部と前記被係止部とが設けられていてもよい。この場合には、水栓本体の収容部に対する保持部材の取り付け及び取り外しが非常に容易となる。 Moreover, the said latching | locking part may be provided in the said outer peripheral surface of the said accommodating part, and the said guide part and the said to-be-locked part may be provided in the said coating | coated part of the said holding member. In this case, attachment and removal of the holding member with respect to the accommodation portion of the faucet body is very easy.

また、前記案内部は、第１の方向に形成され、前記係止部を案内する入口である案内入口部を有する第１案内路と、前記第１の方向とは異なる第２の方向に形成され、前記被係止部に連通する第２案内路とを有していてもよい。この場合には、水栓本体の収容部に取り付けられた保持部材が収容部から容易に外れないようにすることができる。 Further, the guide portion is formed in a first direction, and is formed in a second direction different from the first direction, and a first guide path having a guide inlet portion which is an inlet for guiding the locking portion. And the second guide passage communicated with the locked portion. In this case, the holding member attached to the housing portion of the faucet body can be prevented from easily coming off from the housing portion.

実施形態１の止水栓を示す斜視図である。1 is a perspective view showing a water stop valve according to Embodiment 1. FIG. 実施形態１の止水栓示す展開説明図である。It is expansion | deployment explanatory drawing which shows the water stop valve of Embodiment 1. FIG. 止水栓（開弁状態）の構造を示す一部断面説明図である。It is partial cross section explanatory drawing which shows the structure of a water stop valve (open valve state). 止水栓（閉弁状態）の構造を示す一部断面説明図である。It is partial cross section explanatory drawing which shows the structure of a water stop valve (valve closing state). （Ａ）は保持部材を示す側面図であり、（Ｂ）は（Ａ）のＡ−Ａ線矢視断面図である。(A) is a side view which shows a holding member, (B) is an AA line arrow directional cross-sectional view of (A). （Ａ）は水栓本体を示す側面図であり、（Ｂ）は（Ａ）のＢ−Ｂ線矢視断面図である。(A) is a side view which shows a faucet main body, (B) is a BB arrow directional cross-sectional view of (A). （Ａ）は収容部に保持部材を被せる工程を示す説明図であり、（Ｂ）は収容部の案内部の案内入口部に保持部材の係止部を案内する工程を示す説明図である。(A) is explanatory drawing which shows the process of covering a holding member on an accommodating part, (B) is explanatory drawing which shows the process of guiding the latching part of a holding member to the guidance entrance part of the guide part of an accommodating part. （Ａ）は収容部の案内部において保持部材の係止部を案内する工程を示す説明図であり、（Ｂ）は収容部の被係止部に保持部材の係止部が係止された状態を示す説明図である。(A) is explanatory drawing which shows the process of guiding the latching | locking part of a holding member in the guide part of an accommodating part, (B) is the latching | locking part of a holding member latched by the to-be-locked part of a accommodating part It is an explanatory view showing a state. 実施形態２の止水栓の本体部を示す側面図である。It is a side view which shows the main-body part of the water stop valve of Embodiment 2. FIG. 実施形態２の止水栓の本体部を示す斜視図である。It is a perspective view which shows the main-body part of the water stop valve of Embodiment 2. FIG. （Ａ）は保持部材を示す斜視図であり、（Ｂ）は保持部材を示す平面図であり、（Ｃ）は保持部材を示す側面図である。(A) is a perspective view which shows a holding member, (B) is a top view which shows a holding member, (C) is a side view which shows a holding member. （Ａ）は収容部に保持部材を被せる工程を示す説明図であり、（Ｂ）は保持部材の案内部の案内入口部に収容部の係止部を案内する工程を示す説明図である。(A) is explanatory drawing which shows the process of covering a holding member on an accommodating part, (B) is explanatory drawing which shows the process of guiding the latching part of an accommodating part to the guidance entrance part of the guide part of a holding member. （Ａ）は保持部材の案内部において収容部の係止部を案内する工程を示す説明図であり、（Ｂ）は保持部材の被係止部に収容部の係止部が係止された状態を示す説明図である。(A) is explanatory drawing which shows the process of guiding the latching part of an accommodating part in the guide part of a holding member, (B) is the latching part of a accommodating part latched by the to-be-locked part of a holding member It is an explanatory view showing a state. 実施形態３の止水栓（開弁状態）の構造を示す一部断面説明図である。It is partial cross section explanatory drawing which shows the structure of the water stop valve (open valve state) of Embodiment 3. FIG. 実施形態３の止水栓（閉弁状態）の構造を示す一部断面説明図である。It is partial cross section explanatory drawing which shows the structure of the water stop valve (valve closing state) of Embodiment 3. FIG.

以下、本発明の実施形態を図面と共に説明する。
（実施形態１）
図１〜図６に示すように、本実施形態の止水栓１は、流体を流通させる流路２０を内部に設けた水栓本体２と、水栓本体２の流路２０を開閉可能に構成された弁部材４とを備えている。水栓本体２には、軸方向の一端を開口し、弁部材４を内側に収容する筒状の収容部３が設けられている。収容部３の開口側の端部には、収容部３の内側に収容された弁部材４を保持する保持部材５が取り付けられている。保持部材５は、弁部材４における収容部３の開口側への移動を規制する規制部５１と、収容部３の外周面３００を覆う被覆部５２とを有する。 Hereinafter, embodiments of the present invention will be described with reference to the drawings.
(Embodiment 1)
As shown in FIGS. 1 to 6, the water stop valve 1 of the present embodiment is capable of opening and closing the faucet main body 2 in which the flow path 20 for circulating the fluid is provided and the flow path 20 of the faucet main body 2 And a constructed valve member 4. The faucet main body 2 is provided with a cylindrical accommodating portion 3 which opens at one end in the axial direction and accommodates the valve member 4 inside. A holding member 5 for holding the valve member 4 housed inside the housing portion 3 is attached to the opening end of the housing portion 3. The holding member 5 has a restricting portion 51 which restricts the movement of the housing portion 3 to the opening side in the valve member 4 and a covering portion 52 which covers the outer peripheral surface 300 of the housing portion 3.

保持部材５の被覆部５２及び収容部３の外周面３００のうち、一方には、係止部５２１が設けられ、他方には、係止部５２１を案内する案内部３１と、案内部３１に連通し、係止部５２１が係止される被係止部３２とが設けられている。保持部材５と収容部３とは、一方に設けられた係止部５２１が他方に設けられた案内部３１を介して案内され、被係止部３２に係止されている。以下、この止水栓１について詳細に説明する。 A locking portion 521 is provided on one of the covering portion 52 of the holding member 5 and the outer peripheral surface 300 of the housing portion 3, and a guiding portion 31 for guiding the locking portion 521 and the guiding portion 31 are provided on the other. There is provided an engaged portion 32 which communicates with and which is engaged with the engagement portion 521. The holding member 5 and the housing portion 3 are guided by a locking portion 521 provided on one side via a guiding portion 31 provided on the other side, and locked to the locked portion 32. Hereinafter, the water stop valve 1 will be described in detail.

図１〜図３に示すように、本実施形態の止水栓１は、一般的なコマ式の止水栓１である。止水栓１は、円筒状の水栓本体２を備えている。水栓本体２は、エラストマ配合ＰＰＳ（ポリフェニレンサルファイド）樹脂からなる。水栓本体２を構成する他の材料としては、例えば、ＰＰＳＵ（ポリフェニルサルフォン）、ＰＡ（ポリアミド）、ＰＳＵ（ポリサルフォン）、ＰＶＣ（ポリ塩化ビニル）、ＰＶＤＦ（ポリフッ化ビニリデン）等がある。 As shown in FIGS. 1 to 3, the water stop valve 1 of the present embodiment is a general top type water stop valve 1. The water stop valve 1 includes a cylindrical faucet body 2. The faucet main body 2 is made of elastomer blended PPS (polyphenylene sulfide) resin. Examples of other materials constituting the faucet body 2 include PPSU (polyphenylsulfone), PA (polyamide), PSU (polysulfone), PVC (polyvinyl chloride), PVDF (polyvinylidene fluoride) and the like.

水栓本体２の内部には、水を流通させる流路２０が設けられている。流路２０は、水栓本体２の軸方向の一端から他端まで連通するように形成されている。流路２０は、第１流路部２０１と第２流路部２０２とを有する。第１流路部２０１と第２流路部２０２との間には、連通孔２０３が形成されている。連通孔２０３の周囲には、後述する弁体４２が離着座する弁座２０４が設けられている。 Inside the faucet main body 2, a flow passage 20 for circulating water is provided. The flow passage 20 is formed to communicate from one end of the faucet body 2 in the axial direction to the other end. The flow path 20 includes a first flow path portion 201 and a second flow path portion 202. A communication hole 203 is formed between the first flow passage portion 201 and the second flow passage portion 202. Around the communication hole 203, a valve seat 204 on which a valve body 42 described later is to be seated is provided.

水栓本体２の軸方向の一端部には、継手７１が取り付けられている。継手７１は、止水栓１と樹脂製パイプ等の管体（図示略）とを接続するためのものである。また、水栓本体２の軸方向の一端部には、円筒状の補強部材７２が嵌装されている。補強部材７２は、水栓本体２と継手７１との連結をより強固にするための部材である。 A joint 71 is attached to one axial end of the faucet body 2. The joint 71 is for connecting the water stop valve 1 and a pipe body (not shown) such as a resin pipe. Further, a cylindrical reinforcing member 72 is fitted at one axial end of the faucet body 2. The reinforcing member 72 is a member for further strengthening the connection between the faucet body 2 and the joint 71.

水栓本体２の軸方向の他端部には、黄銅からなる円筒状の第１インサート部材２１が設けられている。第１インサート部材２１を構成する他の材料としては、例えば、青銅、ステンレス鋼（ＳＵＳ）、繊維強化樹脂等がある。水栓本体２と第１インサート部材２１とは、インサート成形により一体化されている。なお、水栓本体２と第１インサート部材２１とは、一体的に成形してもよい。第１インサート部材２１は、その一部が水栓本体２から突出するように配置されている。 A cylindrical first insert member 21 made of brass is provided at the other axial end of the faucet body 2. As another material which comprises the 1st insert member 21, there exist bronze, stainless steel (SUS), fiber reinforced resin etc., for example. The faucet body 2 and the first insert member 21 are integrated by insert molding. The faucet body 2 and the first insert member 21 may be integrally formed. The first insert member 21 is disposed such that a portion thereof protrudes from the faucet body 2.

水栓本体２には、円筒状の収容部３が設けられている。収容部３は、水栓本体２から水栓本体２の軸方向に直交する方向に突出して形成されている。収容部３の軸方向の一端（先端）には、開口部３０が形成されている。収容部３の内側の空間は、流路２０の途中に連通している。 The faucet main body 2 is provided with a cylindrical housing portion 3. The housing portion 3 is formed to project from the faucet body 2 in a direction perpendicular to the axial direction of the faucet body 2. An opening 30 is formed at one axial end (tip) of the housing 3. A space inside the housing portion 3 communicates in the middle of the flow path 20.

収容部３の先端部には、ガラス繊維強化ＰＰＳ樹脂からなる第２インサート部材２２が設けられている。第２インサート部材２２を構成する他の材料としては、例えば、繊維強化樹脂等の高強度樹脂、黄銅、青銅等がある。収容部３を含む水栓本体２と第２インサート部材２２とは、インサート成形により一体化されている。なお、水栓本体２と第２インサート部材２２とは、一体的に成形してもよい。第２インサート部材２２は、収容部３の内周面に沿って配置されている。第２インサート部材２２の内周面には、雌ネジ２２１が形成されている。 A second insert member 22 made of glass fiber reinforced PPS resin is provided at the tip of the housing portion 3. As another material which comprises the 2nd insert member 22, high-strength resin, such as fiber reinforced resin, brass, bronze, etc. are mentioned, for example. The faucet main body 2 including the housing portion 3 and the second insert member 22 are integrated by insert molding. The faucet body 2 and the second insert member 22 may be integrally formed. The second insert member 22 is disposed along the inner peripheral surface of the housing portion 3. A female screw 221 is formed on the inner peripheral surface of the second insert member 22.

収容部３（第２インサート部材２２）の内側には、弁部材４が収容されている。弁部材４は、柱状の弁軸４１（スピンドル）と、弁軸４１に連結されたコマ式の弁体４２（パッキン）とを有する。弁軸４１は、ガラス繊維強化ＰＰＳ樹脂からなる。弁軸４１を構成する他の材料としては、例えば、黄銅、青銅等がある。弁体４２は、ＥＰＤＭ（エチレンプロピレンジエンゴム）からなる。弁体４２を構成する他の材料としては、ＮＢＲ（ニトリルゴム）、ＦＫＭ（フッ素ゴム）、シリコンゴム等がある。 The valve member 4 is accommodated inside the accommodation portion 3 (second insert member 22). The valve member 4 has a columnar valve shaft 41 (spindle) and a top-type valve body 42 (packing) connected to the valve shaft 41. The valve shaft 41 is made of glass fiber reinforced PPS resin. Other materials that constitute the valve shaft 41 include, for example, brass, bronze and the like. The valve body 42 is made of EPDM (ethylene propylene diene rubber). Other materials constituting the valve body 42 include NBR (nitrile rubber), FKM (fluorine rubber), silicone rubber and the like.

弁軸４１の先端部には、環状の弁体４２が取り付けられている。弁軸４１の先端部の外周面には、環状凹溝４１１が形成されている。環状凹溝４１１内には、Ｏリング６１が装着されている。Ｏリング６１は、弁部材４（弁軸４１）と収容部３との間をシールしている。 An annular valve body 42 is attached to the tip of the valve shaft 41. An annular groove 411 is formed on the outer peripheral surface of the tip end portion of the valve shaft 41. An O-ring 61 is mounted in the annular groove 411. The O-ring 61 seals between the valve member 4 (valve shaft 41) and the housing portion 3.

弁軸４１の後端部の外周面には、雄ネジ４１２が形成されている。弁軸４１は、収容部３の内側に配置された第２インサート部材２２に螺合されている。弁軸４１は、第２インサート部材２２に螺合された状態で回転させることにより、弁軸４１の先端部に取り付けられた弁体４２と共に、軸方向に沿って進退可能となっている。 An external thread 412 is formed on the outer peripheral surface of the rear end portion of the valve shaft 41. The valve stem 41 is screwed into the second insert member 22 disposed inside the housing portion 3. The valve shaft 41 can be advanced and retracted along the axial direction together with the valve body 42 attached to the tip of the valve shaft 41 by rotating the valve shaft 41 while being screwed into the second insert member 22.

例えば、図３に示すように、弁体４２が弁座２０４から離れている（離座している）状態、すなわち開弁状態では、連通孔２０３が開口しており、第１流路部２０１と第２流路部２０２とが連通した状態となる。これにより、水栓本体２の流路２０が開状態となる。 For example, as shown in FIG. 3, in the state in which the valve body 42 is separated (disengaged) from the valve seat 204, that is, in the open state, the communication hole 203 is open, and the first flow path portion 201 And the second flow passage portion 202 communicate with each other. Thereby, the flow path 20 of the faucet main body 2 will be in an open state.

一方、図４に示すように、弁体４２が弁座２０４に当接している（着座している）状態、すなわち閉弁状態では、連通孔２０３が弁軸４１及び弁体４２によって閉塞され、第１流路部２０１と第２流路部２０２とが遮断された状態となる。これにより、水栓本体２の流路２０が閉状態となる。 On the other hand, as shown in FIG. 4, in the state where the valve body 42 is in contact (seated) with the valve seat 204, that is, in the closed state, the communication hole 203 is closed by the valve shaft 41 and the valve body 42, The first flow passage portion 201 and the second flow passage portion 202 are shut off. Thereby, the flow path 20 of the faucet main body 2 will be in a closed state.

なお、本実施形態では、弁部材４は、弁軸４１と弁体４２とを有しているが、例えば、ニードルバルブ等のように、弁体４２を省略し、弁軸４１のみで構成することもできる。このような構成の場合、弁軸４１は、水栓本体２の弁座２０４に対して離着座し、弁体４２の役割を果たす。 In the present embodiment, the valve member 4 includes the valve shaft 41 and the valve body 42. However, for example, like the needle valve, the valve body 42 is omitted, and only the valve shaft 41 is used. It can also be done. In such a configuration, the valve shaft 41 is seated on the valve seat 204 of the faucet body 2 and plays a role of the valve body 42.

図１〜図３に示すように、収容部３の先端部には、保持部材５が取り付けられている。保持部材５は、ステンレス鋼（ＳＵＳ）からなる。保持部材５を構成する他の材料としては、例えば、亜鉛ダイキャスト、アルミダイキャスト、ＰＰＳ、ＰＡ等の高強度樹脂等がある。保持部材５は、規制部５１と被覆部５２とを有する。 As shown in FIGS. 1 to 3, the holding member 5 is attached to the tip end of the housing portion 3. The holding member 5 is made of stainless steel (SUS). Examples of other materials that constitute the holding member 5 include high strength resins such as zinc die casting, aluminum die casting, PPS, and PA. The holding member 5 has a restricting portion 51 and a covering portion 52.

図５（Ａ）、（Ｂ）に示すように、保持部材５において、規制部５１は、その中央部に貫通孔５１１を有し、環状に形成されている。貫通孔５１１には、弁部材４（弁軸４１）が挿通配置される。規制部５１には、後述する係止部５２１に対応する位置にそれぞれ第１目印５１２が設けられている。 As shown in FIGS. 5A and 5B, in the holding member 5, the restricting portion 51 has a through hole 511 at its central portion and is formed in an annular shape. The valve member 4 (valve shaft 41) is inserted through the through hole 511. In the restricting portion 51, first marks 512 are provided at positions corresponding to locking portions 521 described later.

被覆部５２は、筒状に形成されている。被覆部５２は、ステンレス鋼板を絞り加工して形成されている。被覆部５２には、２つの係止部５２１が設けられている。各係止部５２１は、ステンレス鋼板の一部を曲げ加工して形成されている。２つの係止部５２１は、被覆部５２の径方向に対向して配置されている。なお、係止部５２１の形状は、これに限定されるものではなく、例えば、樹脂で形成したり、鍛造や鋳造を用いて形成する場合には、係止部５２１を突起状に形成することもできる。 The covering portion 52 is formed in a tubular shape. The covering portion 52 is formed by drawing a stainless steel plate. The covering portion 52 is provided with two locking portions 521. Each locking portion 521 is formed by bending a part of a stainless steel plate. The two locking portions 521 are disposed to face each other in the radial direction of the covering portion 52. In addition, the shape of the latching | locking part 521 is not limited to this, For example, when forming with resin, or forming using forging and casting, forming the latching | locking part 521 in protrusion shape You can also.

図３に示すように、保持部材５の規制部５１は、弁部材４（弁軸４１）における収容部３の開口側への移動を規制している。すなわち、規制部５１は、弁部材４（弁軸４１）が収容部３の開口部３０から抜け出す方向に移動すると、弁軸４１の雄ネジ４１２が規制部５１に接触してそれ以上移動できないようにしている。 As shown in FIG. 3, the restricting portion 51 of the holding member 5 restricts the movement of the valve portion 4 (valve shaft 41) to the opening side of the accommodating portion 3. That is, when the restricting portion 51 moves in the direction in which the valve member 4 (valve shaft 41) comes out of the opening 30 of the accommodation portion 3, the male screw 412 of the valve shaft 41 contacts the restricting portion 51 and can not move any further I have to.

図６（Ａ）、（Ｂ）に示すように、収容部３の外周面３００には、保持部材５の係止部５２１を案内する案内部３１と、案内部３１に連通して形成され、保持部材５の係止部５２１が係止される被係止部３２とが設けられている。本実施形態において、収容部３の外周面３００には、案内部３１及び被係止部３２がそれぞれ２つ設けられている。２つの案内部３１は、収容部３の径方向に対向して配置されている。同様に、２つの被係止部３２は、収容部３の径方向に対向して配置されている。 As shown in FIGS. 6A and 6B, a guide portion 31 for guiding the locking portion 521 of the holding member 5 and a guide portion 31 are formed on the outer peripheral surface 300 of the storage portion 3 in communication with each other. There is provided a locked portion 32 to which the locking portion 521 of the holding member 5 is locked. In the present embodiment, two guide portions 31 and two engaged portions 32 are provided on the outer peripheral surface 300 of the housing portion 3. The two guide portions 31 are disposed to face each other in the radial direction of the housing portion 3. Similarly, the two engaged portions 32 are disposed to face each other in the radial direction of the accommodation portion 3.

案内部３１は、凹溝状に形成され、第１案内路３１１と第２案内路３１２とを有する。第１案内路３１１は、収容部３の軸方向に沿って形成されている。第１案内路３１１は、保持部材５の係止部５２１を案内する入口である案内入口部３１０を有する。案内入口部３１０は、入口側に向けて徐々に幅が大きくなるようにテーパ状に形成されている。これにより、保持部材５の係止部５２１を収容部３の案内部３１の第１案内路３１１に案内させやすくなる。第２案内路３１２は、第１案内路３１１の一端から収容部３の周方向に沿って形成されている。第２案内路３１２は、被係止部３２に連通して形成されている。 The guide portion 31 is formed in the shape of a recessed groove and has a first guide path 311 and a second guide path 312. The first guide path 311 is formed along the axial direction of the housing portion 3. The first guide path 311 has a guide inlet 310 that is an inlet for guiding the locking portion 521 of the holding member 5. The guide inlet portion 310 is tapered so that the width gradually increases toward the inlet side. As a result, the locking portion 521 of the holding member 5 can be easily guided to the first guide path 311 of the guide portion 31 of the housing portion 3. The second guide path 312 is formed along the circumferential direction of the housing portion 3 from one end of the first guide path 311. The second guide path 312 is formed in communication with the locked portion 32.

被係止部３２は、凹状に形成されている。被係止部３２の深さは、案内部３１（第１案内路３１１、第２案内路３１２）と同じである。被係止部３２と第２案内路３１２との間には、収容部３の外周面３００から径方向外側に突出した突起部３１３が設けられている。なお、本実施形態では、被係止部３２と第２案内路３１２との間に突起部３１３を設けたが、例えば、突起部３１３を設けず、被係止部３２の深さを案内部３１よりも一段深くした構成としてもよい。収容部３の外周面３００には、被係止部３２に対応する位置にそれぞれ第２目印３３が設けられている。 The locked portion 32 is formed in a concave shape. The depth of the engaged portion 32 is the same as that of the guide portion 31 (the first guide path 311, the second guide path 312). Between the engaged portion 32 and the second guide path 312, a projection 313 projecting radially outward from the outer peripheral surface 300 of the housing portion 3 is provided. In the present embodiment, the protrusion 313 is provided between the locked portion 32 and the second guide path 312. However, for example, the protrusion 313 is not provided, and the depth of the locked portion 32 is a guide The configuration may be made one step deeper than 31. Second marks 33 are provided on the outer peripheral surface 300 of the housing portion 3 at positions corresponding to the engaged portions 32.

図３に示すように、保持部材５の係止部５２１は、収容部３の案内部３１（第１案内路３１１、第２案内路３１２）を介して案内され、収容部３の被係止部３２に係止されている。これにより、保持部材５は、収容部３の先端部に取り付けられている。 As shown in FIG. 3, the locking portion 521 of the holding member 5 is guided via the guide portion 31 (the first guide path 311 and the second guide path 312) of the storage portion 3, and the lock of the storage portion 3 is locked. It is locked to the part 32. Thus, the holding member 5 is attached to the distal end of the housing portion 3.

なお、本実施形態では、収容部３を含む水栓本体２と第２インサート部材２２とがインサート成形により一体化されている構成である。そのため、収容部３の先端部を覆うように取り付けられた保持部材５によって、第２インサート部材２２の外周を囲繞することができ、水栓本体２と第２インサート部材２２との密着度が高まる。 In the present embodiment, the faucet body 2 including the housing portion 3 and the second insert member 22 are integrated by insert molding. Therefore, the outer periphery of the second insert member 22 can be surrounded by the holding member 5 attached so as to cover the distal end portion of the housing portion 3, and the degree of adhesion between the faucet body 2 and the second insert member 22 is enhanced. .

次に、水栓本体２の収容部３に、保持部材５を取り付ける工程について説明する。
まず、図７（Ａ）に示すように、保持部材５を水栓本体２の収容部３の先端部に被せる。このとき、保持部材５の規制部５１の貫通孔５１１内に、収容部３の内側に収容された弁部材４（弁軸４１）が挿通するようにする。 Next, the process of attaching the holding member 5 to the housing portion 3 of the faucet body 2 will be described.
First, as shown in FIG. 7A, the holding member 5 is placed on the tip of the housing portion 3 of the faucet body 2. At this time, the valve member 4 (valve shaft 41) accommodated inside the accommodation portion 3 is inserted into the through hole 511 of the regulating portion 51 of the holding member 5.

次いで、図７（Ｂ）に示すように、保持部材５の係止部５２１を収容部３の案内部３１に案内する。具体的には、保持部材５の係止部５２１を収容部３の案内部３１の案内入口部３１０から第１案内路３１１に案内する。 Next, as shown in FIG. 7B, the locking portion 521 of the holding member 5 is guided to the guide portion 31 of the housing portion 3. Specifically, the locking portion 521 of the holding member 5 is guided from the guiding inlet portion 310 of the guiding portion 31 of the housing portion 3 to the first guiding path 311.

次いで、図８（Ａ）に示すように、保持部材５を収容部３の先端部に被せた状態において、保持部材５を周方向に回転させることにより、保持部材５の係止部５２１が収容部３の案内部３１の第１案内路３１１から第２案内路３１２に案内される。 Next, as shown in FIG. 8A, in a state in which the holding member 5 is placed on the distal end of the housing portion 3, the locking portion 521 of the holding member 5 is housed by rotating the holding member 5 in the circumferential direction. The first guiding path 311 of the guiding portion 31 of the unit 3 is guided to the second guiding path 312.

次いで、図８（Ｂ）に示すように、保持部材５を収容部３の先端部に被せた状態において、保持部材５を周方向にさらに回転させることにより、保持部材５の係止部５２１が収容部３の案内部３１の第２案内路３１２から突起部３１３を乗り越えて被係止部３２に案内される。そして、保持部材５の係止部５２１が収容部３の被係止部３２に係止される。これにより、水栓本体２の収容部３に、保持部材５を取り付ける。 Next, as shown in FIG. 8B, in a state where the holding member 5 is placed on the distal end portion of the housing portion 3, the engaging portion 521 of the holding member 5 is further rotated by rotating the holding member 5 in the circumferential direction. The protruding portion 313 is passed over from the second guide path 312 of the guiding portion 31 of the housing portion 3 and is guided to the locked portion 32. Then, the locking portion 521 of the holding member 5 is locked to the locked portion 32 of the housing portion 3. Thus, the holding member 5 is attached to the housing portion 3 of the faucet body 2.

このとき、図１に示すように、保持部材５の規制部５１の第１目印５１２と収容部３の第２目印３３とが周方向において同じ位置となるため、保持部材５の取り付けが完了したことが外部から確認できる。つまり、保持部材５の係止部５２１が収容部３の被係止部３２に係止されたことが外部から確認できる。 At this time, as shown in FIG. 1, since the first mark 512 of the restricting portion 51 of the holding member 5 and the second mark 33 of the accommodation portion 3 are at the same position in the circumferential direction, the attachment of the holding member 5 is completed. It can confirm from the outside. That is, it can be confirmed from the outside that the locking portion 521 of the holding member 5 is locked to the locked portion 32 of the housing portion 3.

次に、本実施形態の止水栓１における作用効果について説明する。
本実施形態の止水栓１において、水栓本体２における収容部３の開口側の端部には、弁部材４を保持する保持部材５が取り付けられている。保持部材５と収容部３とは、一方に設けられた係止部５２１が他方に設けられた案内部３１を介して案内され、被係止部３２に係止されている。すなわち、係止部５２１を被係止部３２に係止させるという簡易な構造で、保持部材５が収容部３に取り付けられている。 Next, the operation and effect of the water stop valve 1 of the present embodiment will be described.
In the water stop valve 1 of the present embodiment, a holding member 5 for holding the valve member 4 is attached to the end of the faucet body 2 on the opening side of the housing portion 3. The holding member 5 and the housing portion 3 are guided by a locking portion 521 provided on one side via a guiding portion 31 provided on the other side, and locked to the locked portion 32. That is, the holding member 5 is attached to the housing portion 3 with a simple structure in which the locking portion 521 is locked to the locked portion 32.

そのため、従来のネジ式やＣリング式の取り付け構造と比較して、収容部３からの弁部材４の抜け出しを抑制する部材（保持部材５）の取り付けが非常に容易となる。また、保持部材５の取り付け後、その保持部材５の取り外しも非常に容易であるため、メンテナンス作業を行いやすくなる。 Therefore, compared with the conventional screw type and C ring type attachment structure, attachment of the member (holding member 5) which suppresses the detachment of the valve member 4 from the accommodating part 3 becomes very easy. In addition, since it is very easy to remove the holding member 5 after the holding member 5 is attached, the maintenance work can be easily performed.

また、保持部材５の取り付け構造を簡易としたことにより、収容部３や収容部３を含めた水栓本体２全体の小型化を図ることができる。また、従来のように、収容部３にネジ部やＣリングを装着する環状凹溝を設ける必要がないため、収容部３を樹脂等で成形することができる。これにより、収容部３を含めた水栓本体２全体を樹脂等で一体的に成形することが可能となり、水栓本体２の構造簡素化、製造容易化を図ることができる。 In addition, by simplifying the mounting structure of the holding member 5, it is possible to miniaturize the housing portion 3 and the entire faucet main body 2 including the housing portion 3. Moreover, since it is not necessary to provide the annular groove which mounts a screw part and a C ring in the accommodating part 3 conventionally, the accommodating part 3 can be shape | molded by resin etc. As a result, the entire faucet body 2 including the housing portion 3 can be integrally formed of resin or the like, and the structure of the faucet body 2 can be simplified and manufacture can be facilitated.

また、保持部材５は、弁部材４における収容部３の開口側への移動を規制する（弁部材４が収容部３から抜け出す方向に移動することを抑制する）規制部５１を有する。そのため、収容部３に取り付けられた保持部材５（特に規制部５１）によって、弁部材４が収容部３から抜け出すことを十分に抑制できる。 Further, the holding member 5 has a restricting portion 51 which restricts the movement of the housing portion 3 in the valve member 4 to the opening side (suppressing the movement of the valve member 4 in the direction of coming out of the housing portion 3). Therefore, the valve member 4 can be sufficiently suppressed from coming out of the housing portion 3 by the holding member 5 (particularly, the regulation portion 51) attached to the housing portion 3.

また、本実施形態の止水栓１において、保持部材５の被覆部５２には、係止部５２１が設けられ、収容部３の外周面３００には、案内部３１と被係止部３２とが設けられている。そのため、水栓本体２の収容部３に対する保持部材５の取り付け及び取り外しが非常に容易となる。 Further, in the water stop valve 1 of the present embodiment, the covering portion 52 of the holding member 5 is provided with the locking portion 521, and the outer peripheral surface 300 of the storage portion 3 is provided with the guide portion 31 and the locked portion 32. Is provided. Therefore, attachment and removal of the holding member 5 with respect to the accommodating part 3 of the faucet main body 2 become very easy.

また、案内部３１は、第１の方向に形成され、係止部５２１を案内する入口である案内入口部３１０を有する第１案内路３１１と、第１の方向とは異なる第２の方向に形成され、被係止部３２に連通する第２案内路３１２とを有する。そのため、水栓本体２の収容部３に取り付けられた保持部材５が収容部３から容易に外れないようにすることができる。 In addition, the guide portion 31 is formed in the first direction, and has a first guide path 311 having a guide entrance portion 310 which is an entrance for guiding the locking portion 521, and a second direction different from the first direction. And a second guide path 312 communicating with the locked portion 32. Therefore, the holding member 5 attached to the housing portion 3 of the faucet body 2 can be prevented from being easily detached from the housing portion 3.

このように、本実施形態によれば、弁部材４の抜け出しを抑制する部材（保持部材５）の取り付け及び取り外しが容易であり、かつ、構造簡素化、小型化、製造容易化を図ることができる止水栓１を提供することができる。 As described above, according to the present embodiment, it is easy to attach and remove the member (holding member 5) for suppressing the valve member 4 from coming off, and the structure can be simplified, miniaturized, and easily manufactured. A stop valve 1 can be provided.

（実施形態２）
本実施形態は、図９〜図１１に示すように、止水栓１における収容部３及び保持部材５の構成を変更した例である。なお、実施形態１と同様の構成及び作用効果については説明を省略する。 Second Embodiment
The present embodiment is an example in which the configurations of the housing portion 3 and the holding member 5 in the water stop valve 1 are changed as shown in FIGS. 9 to 11. Description of the same configuration and effects as those of the first embodiment will be omitted.

図９、図１０に示すように、収容部３の外周面３００には、２つの係止部３４が設けられている。各係止部３４は、収容部３の外周面３００から外側に突出して形成されている。２つの係止部３４は、収容部３の外周面３００において、径方向に対向する位置に設けられている。収容部３の外周面３００には、係止部３４に対応する位置にそれぞれ第２目印３３が設けられている。 As shown in FIGS. 9 and 10, two locking portions 34 are provided on the outer circumferential surface 300 of the housing portion 3. Each locking portion 34 is formed to protrude outward from the outer peripheral surface 300 of the housing portion 3. The two locking portions 34 are provided on the outer circumferential surface 300 of the housing portion 3 at positions facing in the radial direction. Second marks 33 are provided on the outer circumferential surface 300 of the housing portion 3 at positions corresponding to the locking portions 34.

図１１（Ａ）〜（Ｃ）に示すように、保持部材５の被覆部５２には、収容部３の係止部５２１を案内する案内部５３と、案内部５３に連通して形成され、収容部３の係止部３４が係止される被係止部５４とが設けられている。本実施形態において、被覆部５２には、２組の案内部５３及び被係止部５４が設けられている。２つの案内部５３及び２つの被係止部５４は、それぞれ被覆部５２の径方向に対向して配置されている。 As shown in FIGS. 11A to 11C, the covering portion 52 of the holding member 5 is formed in communication with the guiding portion 53 for guiding the locking portion 521 of the housing portion 3 and the guiding portion 53, There is provided a locked portion 54 to which the locking portion 34 of the housing portion 3 is locked. In the present embodiment, the covering portion 52 is provided with two sets of the guiding portion 53 and the engaged portion 54. The two guide portions 53 and the two engaged portions 54 are disposed to face each other in the radial direction of the covering portion 52.

案内部５３は、被覆部５２の一部を切り欠いて形成され、第１案内路５３１と第２案内路５３２とを有する。第１案内路５３１は、被覆部５２の軸方向に沿って形成されている。第１案内路５３１は、収容部３の係止部３４を案内する入口である案内入口部５３０を有する。案内入口部５３０は、入口側に向けて徐々に幅が大きくなるようにテーパ状に形成されている。第２案内路５３２は、第１案内路５３１の一端から被覆部５２の周方向に沿って形成されている。第２案内路５３２は、被係止部５４に連通して形成されている。 The guide portion 53 is formed by cutting a part of the covering portion 52 and has a first guide path 531 and a second guide path 532. The first guide path 531 is formed along the axial direction of the covering portion 52. The first guiding path 531 has a guiding inlet 530 which is an inlet for guiding the locking portion 34 of the housing 3. The guide inlet 530 is tapered to gradually increase in width toward the inlet. The second guiding path 532 is formed along the circumferential direction of the covering portion 52 from one end of the first guiding path 531. The second guide path 532 is formed in communication with the engaged portion 54.

被係止部５４は、被覆部５２の一部を切り欠いて形成されている。案内部５３の第２案内路５３２と被係止部５４との間には、幅が狭くなった幅狭部５５が設けられている。保持部材５の規制部５１には、被覆部５２の被係止部５４に対応する位置にそれぞれ第１目印５１２が設けられている。 The locked portion 54 is formed by cutting a part of the covering portion 52. A narrow portion 55 whose width is narrowed is provided between the second guide path 532 of the guide portion 53 and the engaged portion 54. The first mark 512 is provided on the restricting portion 51 of the holding member 5 at a position corresponding to the engaged portion 54 of the covering portion 52.

後述の図１３（Ｂ）に示すように、収容部３の係止部３４は、保持部材５の案内部５３（第１案内路５３１、第２案内路５３２）を介して案内され、保持部材５の被係止部５４に係止されている。これにより、保持部材５は、収容部３の先端部に取り付けられている。 As shown in FIG. 13B described later, the locking portion 34 of the housing portion 3 is guided via the guide portion 53 (the first guide path 531 and the second guide path 532) of the holding member 5, and the holding member It is locked by the 5 to-be-locked part 54. Thus, the holding member 5 is attached to the distal end of the housing portion 3.

次に、水栓本体２の収容部３に、保持部材５を取り付ける工程について説明する。
まず、図１２（Ａ）に示すように、保持部材５を水栓本体２の収容部３の先端部に被せる。このとき、保持部材５の規制部５１の貫通孔５１１内に、収容部３の内側に収容された弁部材４（弁軸４１）が挿通するようにする。 Next, the process of attaching the holding member 5 to the housing portion 3 of the faucet body 2 will be described.
First, as shown in FIG. 12A, the holding member 5 is put on the tip of the housing portion 3 of the faucet body 2. At this time, the valve member 4 (valve shaft 41) accommodated inside the accommodation portion 3 is inserted into the through hole 511 of the regulating portion 51 of the holding member 5.

次いで、図１２（Ｂ）に示すように、収容部３の係止部３４を保持部材５の案内部５３に案内する。具体的には、収容部３の係止部３４を保持部材５の案内部５３の案内入口部５３０から第１案内路５３１に案内する。 Next, as shown in FIG. 12B, the locking portion 34 of the housing portion 3 is guided to the guide portion 53 of the holding member 5. Specifically, the locking portion 34 of the housing portion 3 is guided from the guiding inlet portion 530 of the guiding portion 53 of the holding member 5 to the first guiding path 531.

次いで、図１３（Ａ）に示すように、保持部材５を収容部３の先端部に被せた状態において、保持部材５を周方向に回転させることにより、収容部３の係止部３４を保持部材５の案内部５３の第１案内路５３１から第２案内路５３２に案内する。 Next, as shown in FIG. 13A, in a state in which the holding member 5 is placed on the distal end portion of the housing portion 3, the locking portion 34 of the housing portion 3 is held by rotating the holding member 5 in the circumferential direction. The first guiding path 531 of the guiding portion 53 of the member 5 is guided to the second guiding path 532.

次いで、図１３（Ｂ）に示すように、保持部材５を収容部３の先端部に被せた状態において、保持部材５を周方向にさらに回転させることにより、収容部３の係止部３４を保持部材５の案内部５３の第２案内路５３２から幅狭部５５を通過させて被係止部５４に案内する。そして、収容部３の係止部３４を保持部材５の被係止部５４に係止させる。これにより、水栓本体２の収容部３に、保持部材５を取り付ける。 Next, as shown in FIG. 13B, in a state in which the holding member 5 is placed on the distal end portion of the housing portion 3, the locking portion 34 of the housing portion 3 is rotated by further rotating the holding member 5 in the circumferential direction. The narrow portion 55 is passed from the second guide path 532 of the guide portion 53 of the holding member 5 and guided to the engaged portion 54. Then, the locking portion 34 of the housing portion 3 is locked to the locked portion 54 of the holding member 5. Thus, the holding member 5 is attached to the housing portion 3 of the faucet body 2.

このとき、保持部材５の第１目印５１２と収容部３の第２目印３３とが周方向において同じ位置となるため、保持部材５の取り付けが完了したことが外部から確認できる。つまり、収容部３の係止部３４が保持部材５の被係止部５４に係止されたことが外部から確認できる。 At this time, since the first mark 512 of the holding member 5 and the second mark 33 of the housing portion 3 are at the same position in the circumferential direction, it can be confirmed from the outside that the attachment of the holding member 5 is completed. That is, it can be confirmed from the outside that the locking portion 34 of the housing portion 3 is locked to the locked portion 54 of the holding member 5.

本実施形態の場合、収容部３の外周面３００には、係止部３４が設けられ、保持部材５の被覆部５２には、案内部５３と被係止部５４とが設けられている。そのため、水栓本体２の収容部３に対する保持部材５の取り付け及び取り外しが非常に容易となる。 In the case of the present embodiment, the locking portion 34 is provided on the outer peripheral surface 300 of the housing portion 3, and the covering portion 52 of the holding member 5 is provided with the guide portion 53 and the locked portion 54. Therefore, attachment and removal of the holding member 5 with respect to the accommodating part 3 of the faucet main body 2 become very easy.

（実施形態３）
本実施形態は、図１４、図１５に示すように、本発明をいわゆるボール式の止水栓１に適用した例である。なお、実施形態１と同様の構成及び作用効果については説明を省略する。 (Embodiment 3)
This embodiment is an example in which the present invention is applied to a so-called ball-type water stop valve 1 as shown in FIG. 14 and FIG. Description of the same configuration and effects as those of the first embodiment will be omitted.

図１４に示すように、本実施形態の止水栓１は、一般的なボール式の止水栓１である。水栓本体２の内部には、水を流通させる流路２０が設けられている。流路２０は、第１流路部２０１と第２流路部２０２とを有する。第１流路部２０１と第２流路部２０２との間には、弁部材４の弁体４２を収容する弁体収容空間２０５が設けられている。 As shown in FIG. 14, the water stop valve 1 of the present embodiment is a general ball type water stop valve 1. Inside the faucet main body 2, a flow passage 20 for circulating water is provided. The flow path 20 includes a first flow path portion 201 and a second flow path portion 202. A valve body accommodation space 205 for accommodating the valve body 42 of the valve member 4 is provided between the first flow passage portion 201 and the second flow passage portion 202.

水栓本体２の軸方向の他端部には、弁体収容空間２０５内に収容した弁体４２を保持して押さえる押え部材２３が設けられている。押え部材２３は、水栓本体２の一部を構成している。押え部材２３は、取り外し可能に構成されている。 At the other axial end of the faucet body 2, a pressing member 23 for holding and pressing the valve body 42 accommodated in the valve body accommodation space 205 is provided. The pressing member 23 constitutes a part of the faucet body 2. The pressing member 23 is configured to be removable.

収容部３の内側には、弁部材４が収容されている。弁部材４は、柱状の弁軸４１（スピンドル）と、弁軸４１に連結されたボール式の弁体４２とを有する。弁体４２は、弁軸４１の先端部に取り付けられている。 The valve member 4 is housed inside the housing portion 3. The valve member 4 has a columnar valve shaft 41 (spindle) and a ball-type valve body 42 connected to the valve shaft 41. The valve body 42 is attached to the tip of the valve shaft 41.

弁体４２の内部には、水栓本体２の流路２０の一部を構成する連通路４２１が貫通して形成されている。弁体収容空間２０５内には、２つのシール部材６２が配置されている。２つのシール部材６２は、弁体４２と水栓本体２との間をシールしている。 A communication passage 421 which constitutes a part of the flow passage 20 of the faucet body 2 is formed in the valve body 42 so as to penetrate therethrough. In the valve body accommodation space 205, two seal members 62 are disposed. The two seal members 62 seal between the valve body 42 and the faucet body 2.

弁軸４１の外周面には、２つの環状凹溝４１１が形成されている。各環状凹溝４１１内には、Ｏリング６１が装着されている。Ｏリング６１は、弁部材４（弁軸４１）と収容部３との間をシールしている。弁軸４１の後端部には、ハンドル４３が取り付けられている。ハンドル４３を回すことにより、弁軸４１及び弁体４２が回転するように構成されている。 Two annular grooves 411 are formed on the outer peripheral surface of the valve shaft 41. An O-ring 61 is mounted in each annular groove 411. The O-ring 61 seals between the valve member 4 (valve shaft 41) and the housing portion 3. A handle 43 is attached to the rear end of the valve shaft 41. By turning the handle 43, the valve shaft 41 and the valve body 42 are configured to rotate.

例えば、図１４に示すように、第１流路部２０１及び第２流路部２０２と弁体４２の連通路４２１とが同じ向きの状態、すなわち開弁状態では、弁体４２の連通路４２１を介して第１流路部２０１と第２流路部２０２とが連通した状態となる。これにより、水栓本体２の流路２０が開状態となる。 For example, as shown in FIG. 14, when the first flow passage 201 and the second flow passage 202 and the communication passage 421 of the valve body 42 are in the same direction, that is, in the open state, the communication passage 421 of the valve body 42 is The first flow passage portion 201 and the second flow passage portion 202 are in communication with each other. Thereby, the flow path 20 of the faucet main body 2 will be in an open state.

一方、図１５に示すように、第１流路部２０１及び第２流路部２０２と弁体４２の連通路４２１とが異なる向き（本実施形態では、９０°異なる向き）の状態、すなわち閉弁状態では、第１流路部２０１と第２流路部２０２とが弁体４２によって遮断された状態となる。これにより、水栓本体２の流路２０が閉状態となる。 On the other hand, as shown in FIG. 15, the first flow passage 201 and the second flow passage 202 and the communication passage 421 of the valve body 42 are in different orientations (in the present embodiment, 90 ° different orientations), that is, closed. In the valve state, the first flow passage portion 201 and the second flow passage portion 202 are shut off by the valve body 42. Thereby, the flow path 20 of the faucet main body 2 will be in a closed state.

本実施形態の場合にも、弁部材４の抜け出しを抑制する部材（保持部材５）の取り付け及び取り外しが容易であり、かつ、構造簡素化、小型化、製造容易化を図ることができる止水栓１を提供することができる。 Also in the case of the present embodiment, it is easy to attach and remove the member (holding member 5) for suppressing the valve member 4 from coming off, and it is possible to simplify the structure, to miniaturize, to facilitate manufacture. A stopper 1 can be provided.

（その他の実施形態）
本発明は、前述の実施形態に何ら限定されるものではなく、本発明を逸脱しない範囲において種々の態様で実施しうることはいうまでもない。 (Other embodiments)
It is needless to say that the present invention is not limited to the above-mentioned embodiment at all, and can be implemented in various modes without departing from the present invention.

（１）前述の実施形態では、保持部材又は収容部に係止部を２つ設けたが、係止部の数はこれに限定されるものではなく、例えば、係止部を１つだけ設けてもよいし、３つ以上設けてもよい。 (1) In the above-described embodiment, two retaining parts are provided in the holding member or the housing part, but the number of the retaining parts is not limited to this. For example, only one retaining part is provided. You may provide three or more.

（２）前述の実施形態では、保持部材又は収容部に２つの被係止部（案内部）を設けたが、被係止部（案内部）の数はこれに限定されるものではなく、例えば、被係止部（案内部）を１つだけ設けてもよいし、３つ以上設けてもよい。 (2) In the above-mentioned embodiment, although two to-be-locked parts (guide parts) were provided in the holding member or the accommodating part, the number of to-be-locked parts (guide parts) is not limited to this, For example, only one locked portion (guide portion) may be provided, or three or more may be provided.

（３）前述の実施形態では、係止部及び被係止部の構成例を示したが、係止部及び被係止部の構成はこれに限定されるものではなく、公知の種々様々な構成を採用することができる。 (3) In the above embodiment, the configuration example of the locking portion and the locked portion is shown, but the configuration of the locking portion and the locked portion is not limited to this, and various known types are known. The configuration can be adopted.

（４）前述の実施形態では、案内部は、第１案内路と第２案内路とを有するが、第１案内路と第２案内路との間に、１又は複数の案内路が設けられていてもよい。例えば、第１案内路と第２案内路との間に、第１の方向及び第２の方向とは異なる第３の方向に形成された第３案内路が設けられていてもよい。また、案内部（第１案内路、第２案内路）を形成する方向は、種々変更可能である。 (4) In the above-mentioned embodiment, although a guidance part has the 1st guidance way and the 2nd guidance way, one or more guidance ways are provided between the 1st guidance way and the 2nd guidance way It may be For example, a third guideway may be provided between the first guideway and the second guideway and formed in a third direction different from the first direction and the second direction. Moreover, the direction which forms a guide part (a 1st guide way, a 2nd guide way) can be changed variously.

（５）本発明の構成は、前述したバルブ（コマ式、ボール式）のみに適用されるものではなく、弁軸を回動させることによって流路の開閉が可能となるものであれば適用することができ、例えば、ゲートバルブ、ニードルバルブ、バタフライバルブ等に適用することができる。 (5) The configuration of the present invention is applicable not only to the above-described valve (comma type, ball type), but also as long as the flow path can be opened and closed by rotating the valve shaft. For example, the present invention can be applied to gate valves, needle valves, butterfly valves and the like.

１…止水栓
２…水栓本体
２０…流路
３…収容部
３００…外周面
３１…案内部
３２…被係止部
４…弁部材
５…保持部材
５１…規制部
５２…被覆部
５２１…係止部 DESCRIPTION OF SYMBOLS 1 ... Water stop cock 2 ... faucet main body 20 .. Flow path 3 ... accommodation part 300 ... outer peripheral surface 31 ... guidance part 32 ... locked part 4 ... valve member 5 ... holding member 51 ... control part 52 ... coating part 521 ... Locking part

Claims

A faucet body provided with a flow path for fluid flow therein;
And a valve member configured to be able to open and close the flow path of the faucet body,
The faucet main body is provided with a cylindrical accommodating portion which opens at one end in the axial direction and accommodates the valve member inside;
A holding member for holding the valve member housed inside the housing portion is attached to the open end of the housing portion,
The holding member includes a restricting portion which restricts the movement of the valve portion toward the opening of the accommodating portion, and a covering portion covering an outer peripheral surface of the accommodating portion.
The covering portion of the holding member is provided with a locking portion,
The outer peripheral surface of the housing portion is provided with a guide portion for guiding the locking portion, and a locked portion which communicates with the guiding portion and is locked by the locking portion.
In the holding member and the housing portion, the locking portion is guided through the guiding portion and locked to the locked portion.
The guide portion is in the shape of a recessed groove,
The locked portion is concave,
The water stop valve is provided with a protruding portion protruding outward in the radial direction between the guide portion and the engaged portion in the outer peripheral surface of the housing portion.

The guide portion is in the shape of a recessed groove,
The water stop valve according to claim 1, wherein the engaged portion is concaved deeper than the guide portion.