JP7138345B2

JP7138345B2 - on-off valve

Info

Publication number: JP7138345B2
Application number: JP2019073301A
Authority: JP
Inventors: 涼平山本; 悠歩山本; 直行山本
Original assignee: 麓技研株式会社
Priority date: 2019-04-08
Filing date: 2019-04-08
Publication date: 2022-09-16
Anticipated expiration: 2038-03-30
Also published as: JP2019184067A

Description

この発明は、流体の流通を開閉操作する開閉弁に係り、詳しくは開閉操作ハンドルに特徴を有する開閉弁に関するものである。 BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an on-off valve for opening and closing fluid circulation, and more particularly to an on-off valve characterized by an opening and closing operation handle.

従来出願人は、液体容器の排出口に取り付けられる開閉弁を提案している。この開閉弁は、特許文献１に記載されているように、容器内液体の流入口を有する基端部と、開閉操作する操作レバーと、操作レバーの回動操作によって開閉させられる弁体と、開放時に流入口に連通する排出口を備えている。そして、基端に流入口が形成された基端部には、容器の排出口に形成されている雌ネジに螺号する雄ネジが形成されている。 A conventional applicant has proposed an on-off valve attached to a discharge port of a liquid container. As described in Patent Document 1, the on-off valve includes a base end having an inflow port for the liquid in the container, an operation lever for opening and closing operations, a valve body that is opened and closed by rotating the operation lever, It has an outlet that communicates with the inlet when open. A male thread is formed at the proximal end where the inlet is formed to engage with the female thread formed at the discharge port of the container.

実開平０５－８３５６０号Actual open No. 05-83560 特開２０１７－３６８２８号JP 2017-36828

容器の排出口に従来の開閉弁を装着した場合、容器の形状や排出口の位置によって、開閉弁の操作レバーが操作できない場合があるという欠点があった。例えば、図８に示されているように、排出口の周囲に隆起部などがあり、操作レバーが干渉して、開閉弁が取り付けられず、又は取り付けられたとしても、隆起部によって操作レバーの操作に支障をきたす、といった問題があった。 When a conventional on-off valve is attached to the discharge port of the container, there is a drawback that the operation lever of the on-off valve may not be operable depending on the shape of the container and the position of the discharge port. For example, as shown in FIG. 8, there is a protrusion around the discharge port, and the operation lever interferes with it, and the on-off valve is not attached. There was a problem that it interfered with the operation.

また、特許文献２に記載されている開閉弁のように、取付姿勢を任意の方向に設定できる構成の開閉弁も提案されている。しかし、特許文献２に記載の開閉弁では、排出口の方向を所望の位置に設定すれば、操作レバーの向きは決まってしまうため、排出口の方向と、操作レバーの方向とを同時に所望の向きに固定させることはできないといった問題があった。 In addition, like the on-off valve described in Patent Document 2, there has also been proposed an on-off valve having a configuration in which the mounting posture can be set in any direction. However, in the on-off valve described in Patent Document 2, if the direction of the discharge port is set at a desired position, the direction of the operation lever is determined. There was a problem that the orientation could not be fixed.

さらに、操作レバーは弁本体から突出しているので、機器の外側に露出して開閉弁が取り付けられている場合には、外部と接触して操作レバーが折れる等の不都合があった。
この発明は、開閉弁の開閉操作を容易とするとともに、取付位置に関わりなく、取り付けが可能となる開閉弁を提供することを目的とするものである。 Furthermore, since the operating lever protrudes from the valve main body, if the open/close valve is attached to the outside of the device, the operating lever may come into contact with the outside and be broken.
SUMMARY OF THE INVENTION It is an object of the present invention to provide an on-off valve that facilitates the opening and closing operation of the on-off valve and that can be mounted regardless of the mounting position.

以上のような問題を解決する本発明は以下の構成を備える。
（１）液体の流通路に配置され、液体の流通と閉鎖を操作する開閉弁であって、
弁体を収容する弁室と、容器の排出口に接続される流入口と、下流側に位置する流出口とを有する本体と、
前記弁室に収容され、流入口と流出口とを連通状態とする開放位置と、流入口と流出口との流通を遮断する閉鎖位置との間で回動することにより液体の流通を切り替え可能な弁体と、
前記弁体の回動軸線に沿って接続される操作軸と、
中心部に前記操作軸が接続される接続部と、接続された前記操作軸の回動軸を中心線とする回転体形状に沿った形状の外周部とを有し、前記弁体を開放位置と閉鎖位置との間で、前記外周部に指の腹を接触させて回動操作される操作部材と、
前記本体に設けられ、円筒形状に形成された操作軸収容部とを有し、
前記操作部材には、前記操作軸収容部に嵌め合わされて外側に重なる円筒部が設けられ、該円筒部と前記操作軸収容部との間には、相互に重なり合う対向面の対向位置において、前記操作軸収容部側の対向面に凸部が、前記円筒部側の対向面には前記凸部に接触して前記操作部材の操作方向を規制する案内部が設けられていることを特徴とする開閉弁。 The present invention for solving the above problems has the following configuration.
(1) An on-off valve that is arranged in a liquid flow path and operates to flow and close the liquid,
a main body having a valve chamber containing a valve body, an inlet connected to the outlet of the container, and an outlet positioned downstream;
It is housed in the valve chamber and can switch the flow of liquid by rotating between an open position where the inflow port and the outflow port are in communication and a closed position where the flow between the inflow port and the outflow port is blocked. and
an operation shaft connected along the rotation axis of the valve body;
A connecting portion to which the operating shaft is connected at a central portion, and an outer peripheral portion having a shape along a shape of a rotating body having a rotation axis of the connected operating shaft as a center line, wherein the valve body is in an open position. and a closed position, an operation member that is rotated by bringing a pad of a finger into contact with the outer peripheral portion ;
an operating shaft accommodating portion provided in the main body and formed in a cylindrical shape,
The operating member is provided with a cylindrical portion that is fitted to the operating shaft accommodating portion and overlaps with the outside , and between the cylindrical portion and the operating shaft accommodating portion, the overlapping facing surfaces are opposed to each other at positions where: A convex portion is provided on the facing surface of the operating shaft accommodating portion , and a guide portion is provided on the facing surface of the cylindrical portion to regulate the operating direction of the operating member by coming into contact with the convex portion. on-off valve.

（２）前記案内部は、操作軸の軸方向に形成された縦溝と、前記縦溝の一端部に接続され周方向に形成された横溝とを有し、
前記凸部が縦溝内に位置する場合は、前記操作部材の回動が規制されるロック状態となり、前記凸部が横溝内に位置する場合には、操作部材を回動操作可能とする解除状態となる上記（１）に記載の開閉弁。 (2) the guide portion has a longitudinal groove formed in the axial direction of the operating shaft and a lateral groove connected to one end of the longitudinal groove and formed in the circumferential direction;
When the projection is positioned in the vertical groove, the operation member is locked from rotating, and when the projection is positioned in the lateral groove, the operation member is unlocked so that it can be rotated. The on-off valve according to (1) above, which is in a state.

（３）前記操作部材がロック状態となる方向に操作部材を付勢する付勢部材が、操作軸収容部内に設けられている上記（２）に記載の開閉弁。 (3) The on-off valve according to (2) above, wherein a biasing member that biases the operating member in a direction in which the operating member is locked is provided in the operating shaft accommodating portion.

（４）前記操作部材は、前記操作軸が接続され、円盤状に形成された操作部本体を有し、前記円筒部は該操作部本体の外周端から本体側に延設されている上記(１)～(３)のいずれか１にに記載の開閉弁。 (4) The operation member has a disk-shaped operation portion main body to which the operation shaft is connected, and the cylindrical portion extends from the outer peripheral end of the operation portion main body toward the main body. The on-off valve according to any one of 1) to (3) .

請求項１に記載の発明によれば、操作部材の外周形状は、回転体形状に沿った形状となっているので、操作軸を回転させる作用点が対称位置に２つとなり、回転操作をする際に操作部材に作用させるトルクを従来のレバー型よりも小さくできるので、操作が容易となる。また、従来のレバー型の操作部材に比較して、腕の長さ(操作部材の径)を小さくできるので、小型化を図ることができる。更に、操作レバーが外側に突出しないので、レバーの破損などの不都合も生じない。
案内部と凸部との接触によって操作部材の動きが規制されるので、誤操作が抑制される。 According to the first aspect of the invention, since the outer peripheral shape of the operating member is shaped along the shape of the rotating body, there are two points of action for rotating the operating shaft at symmetrical positions, so that the operating member can be rotated. Since the torque acting on the operating member can be made smaller than that of the conventional lever type, the operation is facilitated. In addition, since the length of the arm (the diameter of the operating member) can be reduced compared to the conventional lever-type operating member, miniaturization can be achieved. Furthermore, since the operating lever does not protrude outward, there is no problem such as breakage of the lever.
Since the movement of the operating member is restricted by the contact between the guide portion and the convex portion, erroneous operations are suppressed.

請求項２に記載の発明によれば、凸部と溝との接触によって、操作部材の操作量と操作方向が規定されるので、誤操作が未然に抑制される。また、縦溝内に凸部が位置することで、操作部材がロック状態となるので、開閉弁を所望の状態で維持することができる。
請求項３に記載の発明によれば、付勢部材によって操作部材がロック位置方向に補正されるので、一層誤操作防止作用が強化される。 According to the second aspect of the invention, the amount of operation and the direction of operation of the operating member are defined by the contact between the protrusion and the groove, so that erroneous operations are suppressed. In addition, since the operating member is locked by positioning the protrusion in the vertical groove, the on-off valve can be maintained in a desired state.
According to the third aspect of the invention, the operation member is corrected toward the lock position by the biasing member, so that the erroneous operation prevention effect is further enhanced.

請求項４に記載の発明によれば、円盤状に形成された操作部本体の外周端から本体側に円筒部が延設される。 According to the fourth aspect of the invention, the cylindrical portion extends from the outer peripheral end of the disk-shaped operating portion main body toward the main body.

本発明の開閉弁において、弁体が閉鎖位置にある断面側面図である。FIG. 2 is a cross-sectional side view of the on-off valve of the present invention with the valve body in the closed position; 本発明の開閉弁において、弁体が開放位置にある断面側面図である。FIG. 2 is a cross-sectional side view of the on-off valve of the present invention with the valve body in the open position; 本発明の開閉弁において、弁体が閉鎖位置にある部分断面平面図である。FIG. 4 is a partial cross-sectional plan view of the on-off valve of the present invention, in which the valve body is in the closed position; 本発明の開閉弁の操作部材において、弁体が閉鎖位置にある正面断面図である。FIG. 4 is a front cross-sectional view of the operating member of the on-off valve of the present invention, in which the valve body is in the closed position; 本発明の開閉弁の操作部材において、回動規制解除状態における全体斜視図である。1 is an overall perspective view of an operation member of an on-off valve according to the present invention in a state where rotation restriction is released; FIG. 本発明の開閉弁において、操作部材を取り付ける際の状態を示す正面断面図である。FIG. 4 is a front cross-sectional view showing a state in which an operation member is attached to the on-off valve of the present invention; 本発明の開閉弁において、操作部材の正面断面図である。FIG. 4 is a front cross-sectional view of an operating member in the on-off valve of the present invention; 従来の開閉弁の容器への取り付け状況を示す斜視図である。and FIG. 10 is a perspective view showing how a conventional on-off valve is attached to a container.

以下、本発明の好適実施形態について、添付図面に基づいて詳説する。図１は、本発明の開閉弁の閉鎖状態における断面側面図、図２は同じく開放状態を示す断面側面図、図３は、平面図である。開閉弁１は、本体２と、締着部材３と、蓋体４と、弁体５と、操作軸６と、操作部材７とを備えている。本体２は、弁体５を収納する弁体収納部２１と、締着部材３を収容する収容部２２と、弁体５を開閉操作するための操作軸６と付勢部材としてのスプリング９が収納されている操作軸収容部２３とを有している。 BEST MODE FOR CARRYING OUT THE INVENTION Preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings. FIG. 1 is a cross-sectional side view of an on-off valve of the present invention in a closed state, FIG. 2 is a cross-sectional side view showing the same open state, and FIG. 3 is a plan view. The on-off valve 1 includes a body 2 , a fastening member 3 , a lid body 4 , a valve body 5 , an operating shaft 6 and an operating member 7 . The main body 2 includes a valve housing portion 21 for housing the valve body 5, a housing portion 22 for housing the fastening member 3, an operating shaft 6 for opening and closing the valve body 5, and a spring 9 as a biasing member. and an operating shaft accommodating portion 23 that is accommodated.

弁体収納部２１内には弁体５を内側に収納する弁室２１１が設けられ、弁室２１１の最奥部には、後述する収容部２２に連通する流通路２１２が設けられており、流通路２１２に対向する反対側には、開口部２１３が形成され、内周面には雌ネジが形成されている。流通路２１２、弁室２１１、開口部２１３は、それぞれ横断面形状が円形であって、同一軸線上に配置される。これらの軸線に対して、直交する方向に軸線が位置するように形成されているのが、収容部２２と、操作軸収容部２３である。 A valve chamber 211 that accommodates the valve body 5 is provided in the valve body housing portion 21, and a flow passage 212 that communicates with the housing portion 22, which will be described later, is provided at the innermost portion of the valve chamber 211. An opening 213 is formed on the opposite side facing the flow passage 212, and a female screw is formed on the inner peripheral surface. The flow path 212, the valve chamber 211, and the opening 213 each have a circular cross-sectional shape and are arranged on the same axis. The accommodating portion 22 and the operation shaft accommodating portion 23 are formed so that their axes are positioned in a direction orthogonal to these axes.

弁室２１１には球状の弁体５が収容されており、弁体５の中央には軸線に沿って形成された通路５１が形成され、該通路５１の軸線に対して直交する軸線上には、係合凹部５２が形成されている。また、通路５１の両端に形成された孔の周囲には、リング状のパッキン５３１、５３２がそれぞれ配置されており、弁室２１１の内壁と弁体５の外周面の間に介挿されている。弁体５は、パッキン５３１、５３２に挟まれた状態で、回動自在に保持されている。そして、通路５１の両端開口部が流通路２１２と、開口部２１３に臨む位置が開放位置、開放位置における通路５１の軸線に対して、通路５１の軸線が直角の角度をなす位置が閉鎖位置となっており、開放位置と閉鎖位置との間で、回動角度９０度の範囲で回動する構成となっている。弁体５の回動は、通路５１の軸線に対して直角に交差する軸線を有する操作軸６の回動によって実現される。 A spherical valve element 5 is accommodated in the valve chamber 211. A passage 51 is formed along the axis in the center of the valve element 5. On the axis orthogonal to the axis of the passage 51, , an engaging recess 52 is formed. Ring-shaped packings 531 and 532 are arranged around the holes formed at both ends of the passage 51 , respectively, and are interposed between the inner wall of the valve chamber 211 and the outer peripheral surface of the valve body 5 . . The valve body 5 is rotatably held between the packings 531 and 532 . The open position is a position where both openings of the passage 51 face the flow passage 212 and the opening 213, and the closed position is a position where the axis of the passage 51 forms a right angle with respect to the axis of the passage 51 in the open position. It is configured to rotate within a range of a rotation angle of 90 degrees between the open position and the closed position. Rotation of the valve body 5 is realized by rotation of the operation shaft 6 having an axis perpendicular to the axis of the passage 51 .

図４は、操作軸収容部２３の正面断面図である。筒状に形成された操作軸収容部２３は、内側に操作軸６やスプリング９を収容する収容空間２３１を有し、この収容空間２３１下端部は弁室２１１に連通している。収容空間２３１の軸線に沿って配置されている操作軸６は、前記弁体５の係合凹部５２に係合する係合凸部６１を有し、軸部６２を介して、接続部６３を有している。 FIG. 4 is a front cross-sectional view of the operating shaft accommodating portion 23. As shown in FIG. The operating shaft accommodating portion 23 formed in a cylindrical shape has an accommodating space 231 inside which accommodates the operating shaft 6 and the spring 9 , and the lower end of the accommodating space 231 communicates with the valve chamber 211 . The operating shaft 6 arranged along the axis of the accommodation space 231 has an engaging convex portion 61 that engages with the engaging concave portion 52 of the valve body 5, and connects the connecting portion 63 via the shaft portion 62. have.

係合凸部６１と係合凹部５２の係合によって、操作軸６と弁体５は一体として回動する。接続部６３の先端部には、操作部材７が接続される接続端６３１となっており、接続端６３１には操作部材７が着脱自在に接続される。接続部６３は、横断面が多角形状、或いは少なくとも一対の平行な辺を有する形状に形成さている(図示の例では、相互に平行な面を一対有する軸)。
操作部材７は、円盤状に形成された操作部本体７２と、操作部本体７２の外周端から本体２側に延設された円筒部７３と、円筒部７３の内側に形成された内部７１とを備え、操作部本体７２の中心部には、接続部６３の横断面形状と同形状の断面形状を有する挿入部７２１が設けられている。この挿入部７２１に接続部６３の接続端６３１が接続されると、操作軸６と操作部材７は一体として回動できる構成となっている。また、内部７１内において挿入部７２１の周囲には、円筒部７３と同心円の溝が形成されて、スプリング受け部７１１が設けられている。 Due to the engagement between the engaging protrusion 61 and the engaging recess 52, the operating shaft 6 and the valve body 5 rotate as one. A connection end 631 to which the operation member 7 is connected is provided at the tip of the connection portion 63 , and the operation member 7 is detachably connected to the connection end 631 . The connecting portion 63 is formed to have a polygonal cross section or a shape having at least a pair of parallel sides (in the illustrated example, a shaft having a pair of mutually parallel surfaces).
The operation member 7 includes an operation portion main body 72 formed in a disk shape, a cylindrical portion 73 extending from the outer peripheral end of the operation portion main body 72 toward the main body 2 , and an inner portion 71 formed inside the cylindrical portion 73 . , and an insertion portion 721 having the same cross-sectional shape as the connecting portion 63 is provided at the center of the operation portion main body 72 . When the connection end 631 of the connection portion 63 is connected to the insertion portion 721, the operation shaft 6 and the operation member 7 can rotate integrally. A groove concentric with the cylindrical portion 73 is formed around the insertion portion 721 in the interior 71 to provide a spring receiving portion 711 .

図５は、操作部材７の全体斜視図であり、弁体５は閉鎖位置にある状態を示すものである。円筒部７３には、中心軸を挟んで相互に対向する位置において、円筒部７３の軸方向に形成された縦溝７４１Ａ、７４１Ｂが形成されている。縦溝７４１Ａ、７４１Ｂは、一端が円筒部７３の開口端側に開放されており、他端には、横溝７４２Ａ、７４２Ｂの一端がそれぞれ接続されている。横溝７４２Ａ、７４２Ｂは、円周方向に形成されており、円筒部７３の軸線上を中心とする扇の角度が９０度となる範囲の円弧上に形成されている。この明細書では、溝とは、あい対する１対の案内面を有し、少なくとも片側が開放されたものであって、片側のみならず両側が開放されたもの（いわゆるスリット）も含むものとする。図１～図６に示されている例では、スリット形状の溝（両側（内側と外側）が開放されている）が示されている。 FIG. 5 is an overall perspective view of the operating member 7, showing a state where the valve body 5 is in the closed position. Vertical grooves 741A and 741B formed in the axial direction of the cylindrical portion 73 are formed in the cylindrical portion 73 at positions facing each other across the central axis. One end of the longitudinal grooves 741A and 741B is open to the opening end side of the cylindrical portion 73, and the other end is connected to one end of the lateral grooves 742A and 742B. The lateral grooves 742A and 742B are formed in the circumferential direction, and are formed on a circular arc with the angle of the fan centered on the axis of the cylindrical portion 73 being 90 degrees. In this specification, a groove has a pair of guide surfaces facing each other and is open on at least one side, and includes not only one side but also both sides (so-called slit). In the examples shown in FIGS. 1-6, slit-shaped grooves (open on both sides (inner and outer)) are shown.

縦溝７４１Ａと横溝７４２Ｂ及び縦溝７４１Ｂと横溝７４２Ｂとによって、それぞれ案内部７４Ａ、７４Ｂが構成される。円筒部７３の開口端の内周面には、内側に向けて突出する係合部７３１が全内周に渡って形成されている。係合部７３１の先端側面には、内側に向けて厚さが漸減するように傾斜部７３２が形成されている。円筒部７３は、図１、図２、図４に示されているように、内側に操作軸収容部２３が挿入される。円筒部７３の内周面に、操作軸収容部２３の外周面が対向して重なる。円筒部７３の内側に挿入される操作軸収容部２３の外周面には、軸線を中心として反対側の位置において、外側へ向けて突出した一対の凸部２３５Ａ、２３５Ｂが形成されている。 The vertical groove 741A and the horizontal groove 742B and the vertical groove 741B and the horizontal groove 742B constitute guide portions 74A and 74B, respectively. An engaging portion 731 protruding inward is formed over the entire inner circumference of the inner peripheral surface of the open end of the cylindrical portion 73 . A sloped portion 732 is formed on the tip side surface of the engaging portion 731 so that the thickness gradually decreases toward the inside. As shown in FIGS. 1, 2 and 4, the cylindrical portion 73 has the operating shaft accommodating portion 23 inserted therein. The outer peripheral surface of the operating shaft accommodating portion 23 faces and overlaps the inner peripheral surface of the cylindrical portion 73 . A pair of protrusions 235A and 235B that protrude outward are formed on the outer peripheral surface of the operating shaft accommodating portion 23 that is inserted inside the cylindrical portion 73 at positions on opposite sides of the axis.

この凸部２３５Ａ、２３５Ｂの径は、上記各案内部７４Ａ、７４Ｂにおいて、平行に対向する一対の案内面の間隔より若干小さく形成され、円筒部７３の内周面に操作軸収容部２３が挿入された状態では、案内部７４Ａ、７４Ｂ内に収容される。縦溝７４１Ａ、７４１Ｂ内に凸部２３５Ａ、２３５Ｂが位置している状態では、挿入部７２１と接続端６３１とが嵌合可能な向きとなるように、挿入部７２１の向きや、操作軸６の向きが設定されている。操作部材７を本体２の方向へ押し込むと、挿入部７２１に接続端６３１が嵌入され、同時に凸部２３５Ａ、２３５Ｂが、縦溝７４１Ａ、７４１Ｂと横溝７４２Ａ、７４２Ｂの接続端に相対的に移動する。これにより、操作部材７は、回転可能となり、図３において右回転が可能となる。凸部２３５Ａ、２３５Ｂが、横溝７４２Ａ、７４２Ｂの他端に位置するまで、操作部材７を回転させる（図３及び図５において、右回転）ことにより、操作部材７は９０度回転し、弁体５も、閉鎖位置（図１）から開放位置（図２）へ切り替わる。 The diameters of the projections 235A and 235B are slightly smaller than the distance between the pair of guide surfaces facing each other in parallel in the guide portions 74A and 74B. In the folded state, it is housed within the guides 74A and 74B. When the protrusions 235A and 235B are positioned in the vertical grooves 741A and 741B, the insertion portion 721 and the connection end 631 are oriented so that the insertion portion 721 and the connection end 631 can be fitted. Orientation is set. When the operation member 7 is pushed toward the main body 2, the connecting end 631 is inserted into the inserting portion 721, and at the same time, the projections 235A and 235B move relatively to the connecting ends of the longitudinal grooves 741A and 741B and the lateral grooves 742A and 742B. . As a result, the operation member 7 becomes rotatable and can be rotated to the right in FIG. By rotating the operation member 7 (right rotation in FIGS. 3 and 5) until the projections 235A and 235B are positioned at the other ends of the lateral grooves 742A and 742B, the operation member 7 is rotated by 90 degrees and the valve body 5 also switches from the closed position (Fig. 1) to the open position (Fig. 2).

収容空間２３１の開口端外周部には、周方向に連続して形成された突出部２３３が形成され、その先端開口側には、傾斜部２３３ａが、基端側には段部２３３ｂが形成されている。突出部２３３の外周径は、円筒部７３の内周径と同程度に形成され、操作部材７は、この突出部２３３の外周に円筒部７３の内周面を摺接させながら回動する構成となっている。また、操作部材７の係合部７３１の内側端部が、操作軸収容部２３側の段部２３３ｂに係合することによって、操作部材７の操作軸収容部２３からの抜脱が防止される。
収容空間２３１内には、操作軸６を中心に位置させた付勢部材としてのコイルスプリング９が収容されている。コイルスプリング９の一端は、収容空間２３１の底部に当接し、他端は操作部材７のスプリング受け部７１１の底部に当接しており、操作軸収容部２３と操作部材７と間に圧縮状態で収容されている。このため、操作部材７は、コイルスプリング９によって、操作軸収容部２３から離れる方向に常時付勢されており、係合部７３１と段部２３３ｂとが係合する位置が操作部材７が最も操作軸収容部２３から離れた位置となっている。この位置で、上記凸部２３５Ａ、２３５Ｂは、図１に示されているように、縦溝７４１Ａ、７４１Ｂの中央位置から下部の間に位置し、縦溝７４１Ａ、７４１Ｂ内の凸部２３５Ａ、２３５Ｂによって、操作部材７は回動不可の状態となっている。 A projecting portion 233 continuously formed in the circumferential direction is formed on the outer peripheral portion of the opening end of the housing space 231, and an inclined portion 233a is formed on the distal opening side thereof, and a step portion 233b is formed on the proximal end side thereof. ing. The outer diameter of the protruding portion 233 is formed to be approximately the same as the inner peripheral diameter of the cylindrical portion 73 , and the operation member 7 is configured to rotate while the inner peripheral surface of the cylindrical portion 73 is in sliding contact with the outer periphery of the protruding portion 233 . It has become. Further, the inner end of the engaging portion 731 of the operating member 7 is engaged with the stepped portion 233b on the operating shaft accommodating portion 23 side, thereby preventing the operating member 7 from coming off from the operating shaft accommodating portion 23 .
The accommodation space 231 accommodates a coil spring 9 as a biasing member centered on the operation shaft 6 . One end of the coil spring 9 is in contact with the bottom of the accommodation space 231 and the other end is in contact with the bottom of the spring receiving portion 711 of the operating member 7 . Contained. Therefore, the operating member 7 is always urged in the direction away from the operating shaft accommodating portion 23 by the coil spring 9, and the operating member 7 is most operable at the position where the engaging portion 731 and the stepped portion 233b are engaged. It is positioned away from the shaft accommodating portion 23 . At this position, the protrusions 235A, 235B are positioned between the central position and the lower portion of the longitudinal grooves 741A, 741B as shown in FIG. As a result, the operating member 7 is in a non-rotatable state.

以上のように構成された操作部材７を操作軸収容部２３に取り付ける場合には、操作軸収容部２３の開口部に対して、操作部材７の円筒部７３の開口部を突き合わせるようにして、円筒部７３に操作軸収容部２３の開口部を挿入する。図６に示されているように、係合部７３１が操作軸収容部２３の開口部の外周端に接触して、傾斜部７３２によって係合部７３１が外側に押し出され、円筒部７３の開口端部が外側に押し開かれる、さらに、操作部材７を操作軸収容部２３へ押し付けると、操作軸収容部２３側の傾斜部２３３ａと操作部材７側の傾斜部７３２が、接触して更に円筒部７３の開口端部が外側に押し開かれ、円筒部７３の開口部が拡径する方向に変形する。 When the operating member 7 configured as described above is attached to the operating shaft accommodating portion 23, the opening of the cylindrical portion 73 of the operating member 7 is butted against the opening of the operating shaft accommodating portion 23. , the opening of the operating shaft accommodating portion 23 is inserted into the cylindrical portion 73 . As shown in FIG. 6, the engaging portion 731 comes into contact with the outer peripheral edge of the opening of the operating shaft accommodating portion 23 , and the engaging portion 731 is pushed outward by the inclined portion 732 to close the opening of the cylindrical portion 73 . When the operating member 7 is pressed against the operating shaft accommodating portion 23, the inclined portion 233a on the operating shaft accommodating portion 23 side and the inclined portion 732 on the operating member 7 side come into contact with each other to form a further cylindrical shape. The opening end of the portion 73 is pushed open outward, and the opening of the cylindrical portion 73 is deformed in the direction of increasing the diameter.

操作部材７の係合部７３１が突出部２３３を乗り越えると、操作部材７の変形が元の形状に戻り、図４に示されているように、段部２３４と係合部７３１が係合した状態となる。このように、操作軸収容部２３側の傾斜部２３３ａと操作部材７側の傾斜部７３２とによって、容易に操作部材７を操作軸収容部２３に取り付けることが可能となる。
以上のような構成において、図１に示されているように、弁体５が閉鎖位置にある場合には、操作部材７は、コイルスプリング９によって操作軸収容部２３から最も離れた位置にあり、凸部２３５Ａ、２３５Ｂが縦溝７４１Ａ、７４１Ｂに位置する、回動が規制された回動規制状態（ロック状態）となっている。コイルスプリング９にの付勢力に抗して、操作部材７を本体２側に押し込むと、図５に示されているように、凸部２３５Ａ、２３５Ｂが横溝７４２Ａ、７４２Ｂ内に位置し、回動可能な回動規制解除状態となる。 When the engaging portion 731 of the operating member 7 climbs over the projecting portion 233, the deformation of the operating member 7 returns to its original shape, and the stepped portion 234 and the engaging portion 731 are engaged as shown in FIG. state. In this manner, the operating member 7 can be easily attached to the operating shaft accommodating portion 23 by the inclined portion 233a on the operating shaft accommodating portion 23 side and the inclined portion 732 on the operating member 7 side.
In the above configuration, when the valve body 5 is in the closed position as shown in FIG. , the projections 235A and 235B are located in the vertical grooves 741A and 741B, and the rotation is restricted (locked state). When the operation member 7 is pushed toward the main body 2 against the biasing force of the coil spring 9, the protrusions 235A and 235B are positioned in the lateral grooves 742A and 742B as shown in FIG. It will be in a possible rotation regulation release state.

係合部７３１と段部２３４は、既述の例では、いずれも周方向に連続して形成されているが、一方が連続して形成されてあれば、他方は、連続で形成されていなくとも良く、例えば、等間隔で複数個、周方向に配置されていてもよい。或いは、本実施形態の開閉弁では、操作部材７の操作回動範囲は、９０度であるから、この回動範囲に合わせた範囲（この実施形態では、中心角が９０度の扇の弧に相当する範囲）で、係合部７３１又は段部２３４、或いは両者が設けられていてもよい。この他、凸部を円筒部７３の内周面に設け、案内部を操作軸収容部２３の外周面に形成した縦溝と横溝で構成してもよい。 In the example described above, the engaging portion 731 and the stepped portion 234 are both formed continuously in the circumferential direction, but if one is formed continuously, the other is not formed continuously. Either way, for example, a plurality of them may be arranged at regular intervals in the circumferential direction. Alternatively, in the on-off valve of the present embodiment, the operation rotation range of the operating member 7 is 90 degrees, so the range (in this embodiment, the arc of the fan with the central angle of 90 degrees) is adjusted to this rotation range. corresponding range), the engaging portion 731 or the stepped portion 234, or both may be provided. Alternatively, the convex portion may be provided on the inner peripheral surface of the cylindrical portion 73, and the guide portion may be configured by vertical grooves and lateral grooves formed on the outer peripheral surface of the operating shaft accommodating portion 23. FIG.

次に、収容部２２と、締着部材３について説明する。本体２に形成された収容部２２は、断面形状が円形の孔であって、内側に締着部材３が収納される。収容部２２内には、流通路２１２が開口する。収容部２２の軸線は、流通路２１２、弁室２１１、開口部２１３を繋ぐ軸線に対して、直角となるように設定されている。収容部２２の内径は、締着部材３が挿入される挿入口から順に、大径部２２１ａ、小径部２２１ｂが設けられており、締着部材３は、これらの径と略同径を有する円管状の部材である。 Next, the accommodation portion 22 and the fastening member 3 will be described. The accommodation portion 22 formed in the main body 2 is a hole having a circular cross-sectional shape, and the fastening member 3 is accommodated therein. A flow passage 212 opens in the housing portion 22 . The axis of the accommodating portion 22 is set to be perpendicular to the axis connecting the flow path 212 , the valve chamber 211 and the opening 213 . The inner diameter of the accommodation portion 22 is provided with a large diameter portion 221a and a small diameter portion 221b in order from the insertion opening into which the fastening member 3 is inserted, and the fastening member 3 has a circular shape having substantially the same diameter as these diameters. It is a tubular member.

締着部材３は、先端の排出口接続部３３と、締着部材本体３２と、基端の締着部３１とを有している。排出口接続部３３の外周には、容器排出口の内側に形成された雌ネジに螺合する雄ネジ３３１が形成されており、排出口接続部３３の基端部の外径は、収容部２２の小径部２２１ｂの内径に略一致する。締着部材本体３２は、先端側の外径が、収容部２２の大径部２２１ａの内径に略一致する構成となっている。図１及び図２に示されているように、大径部には、外周に溝３２１が周方向に形成されており、該溝３２１の底部には、連通孔３４１、３４１、３４１、３４１が形成されている。 The fastening member 3 has an outlet connecting portion 33 at the distal end, a fastening member main body 32, and a fastening portion 31 at the proximal end. A male thread 331 is formed on the outer circumference of the discharge port connection part 33 to be screwed into a female thread formed inside the container discharge port. 22 substantially matches the inner diameter of the small diameter portion 221b. The fastening member main body 32 has a configuration in which the outer diameter on the distal end side substantially matches the inner diameter of the large diameter portion 221 a of the accommodating portion 22 . As shown in FIGS. 1 and 2, a groove 321 is formed in the outer periphery of the large diameter portion in the circumferential direction, and communicating holes 341, 341, 341, 341 are formed in the bottom of the groove 321. formed.

各連通孔連通孔３４１、３４１、３４１、３４１は、締着部材３の内側において、排出口接続部３３の先端から締着部材本体３２に至るまで形成されている連通路３４の基端部に連通している。溝３２１は、収容部２２内に締着部材３を収容した状態で、流通路２１２に対向する位置に設けられている。溝３２を挟んだ両側には、Ｏリング状のパッキン３６１、３６２が埋設されており、締着部材３と収容部２２との間を液密に維持し、溝３２からの液漏れを抑制する。 The communication holes 341 , 341 , 341 , 341 are located inside the fastening member 3 at the proximal end portion of the communication path 34 formed from the distal end of the outlet connecting portion 33 to the fastening member main body 32 . are in communication. The groove 321 is provided at a position facing the flow path 212 with the fastening member 3 accommodated in the accommodation portion 22 . O-ring-shaped packings 361 and 362 are embedded on both sides of the groove 32 to keep the space between the fastening member 3 and the housing portion 22 liquid-tight and suppress liquid leakage from the groove 32. .

締着部材本体３２の基端側に締着部３１が設けられている。締着部３１は、収容部２２の大径部２２１ａの内径よりも大きい外径を有し、６角形のボルトヘッドを構成している。締着部３１の中央には穴３１１が形成されている。この締着部３１のボルトヘッド部分にスパナ等の工具を接続して締着部材３を、容器の排出口に対してねじ込むことによって、本体２の収容部２２は、締着部３１と排出口との間で締め付けられ、容器側に締着される。 A fastening portion 31 is provided on the proximal end side of the fastening member main body 32 . The fastening portion 31 has an outer diameter larger than the inner diameter of the large-diameter portion 221a of the housing portion 22, and forms a hexagonal bolt head. A hole 311 is formed in the center of the fastening portion 31 . By connecting a tool such as a wrench to the bolt head portion of the fastening portion 31 and screwing the fastening member 3 into the discharge port of the container, the accommodation portion 22 of the main body 2 is formed into the fastening portion 31 and the discharge port. and is fastened to the container side.

この際、排出口と収容部２２の端面との間にパッキン３５を介挿することによって、排出液の漏れを防止することができる。パッキン３５を介挿した場合、Ｏリング状のパッキン３６１は必ずしも必要ない。同様に、図示されていないが、締着部３１と収容部２２の端面との間に、パッキンを介挿した場合にも、Ｏリング状のパッキン３６２は必ずしも必要ない。Ｏリング状のパッキン３６１、３６２を用いた場合には、本発明の開閉弁１を装着して、容器内の液体の排出作業をした後であっても、締着部材３を緩めて開閉弁１の向きを変える作業をしても、液体の漏れを抑制できる。Ｏリング状のパッキン３６１、３６２を用いず、収容部２２の両端面にパッキンを介挿する構成とした場合には、Ｏリング状のパッキン３６１、３６２を埋設する構成が不要となるので、イニシャルコストの低減を図ることが可能となる。 At this time, by interposing a packing 35 between the discharge port and the end surface of the housing portion 22, leakage of the discharged liquid can be prevented. When the packing 35 is inserted, the O-ring-shaped packing 361 is not necessarily required. Similarly, although not shown, the O-ring-shaped packing 362 is not necessarily required even when a packing is interposed between the fastening portion 31 and the end surface of the accommodating portion 22 . When the O-ring-shaped packings 361 and 362 are used, even after the on-off valve 1 of the present invention is attached and the liquid in the container is discharged, the fastening member 3 can be loosened and the on-off valve can be opened. Leakage of liquid can be suppressed even if the work of changing the direction of 1 is performed. If the O-ring-shaped packings 361 and 362 are not used and the packings are inserted into both end surfaces of the housing portion 22, the configuration of embedding the O-ring-shaped packings 361 and 362 becomes unnecessary. It is possible to reduce costs.

以上のような構成の本発明の開閉弁１において作用を説明する。図１に示されている操作部材７の位置は、弁体５を閉鎖位置とする位置である。開閉弁１を容器排出口に装着後、操作部材７を弁本体２の方向に押し付けると、図５に示されているように、凸部２３５Ａ、２３５Ｂが縦溝７４１Ａ、７４１Ｂ内を移動して、横溝７４２Ａ、７４２Ｂとの接続位置に移動する。この位置で、操作部材７を握って右に９０度回転させると、図２に示されているように、流通路２１２と排出路４４とが、通路５１を介して連通する。これにより、容器内の液体は、連通路３４、連通孔３４１、３４１、３４１、３４１、溝３２１を通って、流通路２１２に達し、更に弁体５の通路５１を通って排出路４４から外部に排出される。溝３２１は、周方向に形成されているので、締着部材３に対して本体２がどの様な角度に位置していても、連通路３４から流通路２１２への接続は確保され、液体の排出は滞りなく行われる。 The operation of the on-off valve 1 of the present invention configured as above will be described. The position of the operating member 7 shown in FIG. 1 is the position in which the valve body 5 is in the closed position. After the on-off valve 1 is attached to the container discharge port, when the operation member 7 is pressed toward the valve body 2, the projections 235A and 235B move in the longitudinal grooves 741A and 741B as shown in FIG. , to the connection position with the lateral grooves 742A and 742B. At this position, when the operating member 7 is grasped and rotated 90 degrees to the right, the flow passage 212 and the discharge passage 44 communicate with each other via the passage 51, as shown in FIG. As a result, the liquid in the container passes through the communication passage 34, the communication holes 341, 341, 341, 341, and the groove 321, reaches the flow passage 212, passes through the passage 51 of the valve body 5, and exits the discharge passage 44 to the outside. discharged to Since the groove 321 is formed in the circumferential direction, the connection from the communicating path 34 to the flow path 212 is ensured regardless of the angle of the main body 2 with respect to the fastening member 3, and the liquid does not flow. Ejection takes place without delay.

図３に示されているように、回転体形状の操作部材７を握って回転させると、矢印ＹＡ、ＹＢで示されているように、外周部全体に回転方向の力を加えることになるので、従来例のようなレバー操作と異なり、回転力を加える力点と作用点との距離（操作部材の半径）が、従来のレバーの長さより小さくとも、容易に開閉操作（回動操作）することができる。また、従来のレバー構造よりも、力点と作用点との距離を短くできるので、開閉弁全体の大きさも、コンパクトにできる。さらに、操作レバーなどのように、本体から突出する部材がないので、突出する部分が外部に接触して破損する恐れも少ない。 As shown in FIG. 3, when the rotating body-shaped operating member 7 is gripped and rotated, a rotational force is applied to the entire outer peripheral portion as indicated by arrows YA and YB. Unlike conventional lever operations, the opening/closing operation (rotating operation) can be easily performed even if the distance between the point of application of the rotational force and the point of action (the radius of the operating member) is smaller than the length of the conventional lever. can be done. Moreover, since the distance between the point of force and the point of action can be shortened compared to the conventional lever structure, the size of the entire on-off valve can be made compact. Furthermore, since there is no member protruding from the main body such as an operating lever, there is little possibility that the protruding portion will come into contact with the outside and be damaged.

以上のような構成の他、操作軸６の接続部６３の長さを、操作部材７の回動規制状態において（図１に示されている状態）、接続端６３１が操作部材７の挿入部７２１内に位置し、かつ先端面が操作部本体７２の上面に一致するような長さに構成してもよい。この場合、操作部材７を回動規制解除状態とすると、図２及び図５において想像線で示されているように、接続部６３の接続端６３１が、操作部材７の挿入部７２１から突出するので、接続部６３の突出の有無によって、開閉弁１が閉鎖状態であるか否かを判断することができる。 In addition to the configuration described above, the length of the connection portion 63 of the operation shaft 6 is set so that the connection end 631 is the insertion portion of the operation member 7 when the rotation of the operation member 7 is restricted (the state shown in FIG. 1). 721 , and may be configured to have a length such that the tip end surface coincides with the upper surface of the operation portion main body 72 . In this case, when the operation member 7 is released from rotation restriction, the connection end 631 of the connection portion 63 protrudes from the insertion portion 721 of the operation member 7 as indicated by the imaginary lines in FIGS. Therefore, whether or not the on-off valve 1 is in the closed state can be determined based on whether or not the connecting portion 63 protrudes.

あるいは、図７に示されているように、案内部７４Ａ、７４Ｂの外側の開口を側壁７４２ＡＳ、７４２ＢＳで閉鎖し、また挿入部７２１を天井部７２１Ｓで閉鎖する構成としてもよい。このような構成とすることによって、案内部や挿入部を介して外部から埃や水分等が操作軸収容部２３内に侵入することが抑制される。この他、締着部材３及び収納部２２を設けず、流通路２１２に排出口接続部を直接形成し、排出口接続部から連通路を介して、流通路２１２に容器の排出口が接続される構成としてもよい。 Alternatively, as shown in FIG. 7, the outer openings of the guide portions 74A and 74B may be closed with side walls 742AS and 742BS, and the insertion portion 721 may be closed with a ceiling portion 721S. By adopting such a configuration, it is possible to prevent dust, water, and the like from entering the operation shaft housing portion 23 from the outside through the guide portion and the insertion portion. In addition, the fastening member 3 and the storage portion 22 are not provided, and the discharge port connecting portion is directly formed in the flow passage 212, and the discharge port of the container is connected to the flow passage 212 via the communication passage from the discharge port connecting portion. It may be configured to be

操作部材７の全体形状は、回転体形状ではあるが、外周部の形状は円形に沿ったものであればよく、操作部材を握り易くするために、指の腹の曲率に合わせた凹凸を設けたり、滑り止めのために周面に手触りを粗くする形状や表面処理を施してもよい。また、滑り止めとして、操作部材の表面に軟質の樹脂を覆い被せた構成としてもよい。
本発明の開閉弁１の取り付け位置は、上記説明した容器の排出口に限られず、流体の流通経路に設けて使用することもできる。
本明細書は、以下の構成を開示する。
[１]液体の流通路に配置され、液体の流通と閉鎖を操作する開閉弁であって、
弁体を収容する弁室と、流通路の上流側に接続される流入口と、下流側に位置する流出口とを有する本体と、
前記弁室に収容され、流入口と流出口とを連通状態とする開放位置と、流入口と流出口との流通を遮断する閉鎖位置との間で回動することにより液体の流通を切り替え可能な弁体と、
前記弁体の回動軸線に沿って接続される操作軸と、
中心部に前記操作軸が接続される接続部と、接続された前記操作軸の回動軸を中心線とする回転体形状に沿った形状の外周部とを有し、前記弁体を開放位置と閉鎖位置との間で回動操作する操作部材と、
前記本体に設けられ、円筒形状に形成された操作軸収容部とを有し、
前記操作部材には、前記操作軸収容部に嵌め合わされて内側又は外側に重なる円筒部が設けられ、該円筒部と前記操作軸収容部との間には、相互に重なり合う対向面の対向位置において、一方の対向面に凸部が、他方の対向面には前記凸部に接触して前記操作部材の操作方向を規制する案内部が設けられていることを特徴とする開閉弁。
[２]前記案内部は、操作軸の軸方向に形成された縦溝と、前記縦溝の一端部に接続され周方向に形成された横溝とを有し、
前記凸部が縦溝内に位置する場合は、前記操作部材の回動が規制されるロック状態となり、前記凸部が横溝内に位置する場合には、操作部材を回動操作可能とする解除状態となる上記[１]に記載の開閉弁。
[３]前記操作部材がロック状態となる方向に操作部材を付勢する付勢部材が、操作軸収容部内に設けられている上記[２]に記載の開閉弁。
[４]前記操作部材が解除状態に位置する場合に、前記操作軸の先端が操作部材の外側に突出している上記[２]又は[３]に記載の開閉弁。
[５]前記操作部材の円筒部下端部と、前記操作軸収容部上端部には、相互に対向する対向面の一方に、周方向に連続して形成された段部と、前記段部に係合する係合部と有し、前記段部と前記係合部との係合によって、前記操作部材を前記操作軸収容部に対して回動自在に係止する上記[１]～[４]のいずれか１に記載の開閉弁。
[６]前記係合部には、開口端方向に向けて肉厚が漸減するように形成された傾斜部が設けられている上記[５]に記載の開閉弁。
上記[１]に記載の構成によれば、操作部材の外周形状は、回転体形状に沿った形状となっているので、操作軸を回転させる作用点が対称位置に２つとなり、回転操作をする際に操作部材に作用させるトルクを従来のレバー型よりも小さくできるので、操作が容易となる。また、従来のレバー型の操作部材に比較して、腕の長さ(操作部材の径)を小さくできるので、小型化を図ることができる。更に、操作レバーが外側に突出しないので、レバーの破損などの不都合も生じない。案内部と凸部との接触によって操作部材の動きが規制されるので、誤操作が抑制される。
上記[２]に記載の構成によれば、凸部と溝との接触によって、操作部材の操作量と操作方向が規定されるので、誤操作が未然に抑制される。また、縦溝内に凸部が位置することで、操作部材がロック状態となるので、開閉弁を所望の状態で維持することができる。
上記[３]に記載の構成によれば、付勢部材によって操作部材がロック位置方向に補正されるので、一層誤操作防止作用が強化される。
上記[４]に記載の構成によれば、解除状態では、操作軸が操作部材から突出した状態となるので、外見から開閉弁の状態(開放状態又は閉鎖状態)を容易に把握することができる。
上記[５]に記載の構成によれば、段部と係合部の係合によって、操作部材は操作軸収容部から外れることなく、操作軸収容部の外周に外装された状態で、回動可能に保持される。
上記[６]に記載の構成によれば、操作部材の円筒部を操作軸収容部に嵌め込む際に、傾斜部によって段部と係合部とが容易に変形でき、係合位置まで到達することができる。 Although the overall shape of the operation member 7 is that of a body of revolution, the shape of the outer peripheral portion may be any shape as long as it follows a circle. Alternatively, the peripheral surface may be given a rough shape or surface treatment to prevent slippage. Alternatively, the surface of the operation member may be covered with a soft resin as a non-slip.
The installation position of the on-off valve 1 of the present invention is not limited to the discharge port of the container described above, and it can also be used by providing it in a fluid flow path.
This specification discloses the following configurations.
[1] An on-off valve that is arranged in a liquid flow path and operates to flow and close the liquid,
a main body having a valve chamber accommodating a valve body, an inlet connected to the upstream side of the flow passage, and an outlet positioned downstream;
It is housed in the valve chamber and can switch the flow of liquid by rotating between an open position where the inflow port and the outflow port are in communication and a closed position where the flow between the inflow port and the outflow port is blocked. and
an operation shaft connected along the rotation axis of the valve body;
A connecting portion to which the operating shaft is connected at a central portion, and an outer peripheral portion having a shape along a shape of a rotating body having a rotation axis of the connected operating shaft as a center line, wherein the valve body is in an open position. and a closed position; and
an operating shaft accommodating portion provided in the main body and formed in a cylindrical shape,
The operation member is provided with a cylindrical portion that is fitted to the operation shaft accommodating portion and overlaps inside or outside. 1. An on-off valve, wherein a convex portion is provided on one opposing surface, and a guide portion is provided on the other opposing surface for contacting the convex portion and restricting the operating direction of the operating member.
[2] The guide portion has a longitudinal groove formed in the axial direction of the operating shaft and a lateral groove connected to one end of the longitudinal groove and formed in the circumferential direction,
When the projection is positioned in the vertical groove, the operation member is locked from rotating, and when the projection is positioned in the lateral groove, the operation member is unlocked so that it can be rotated. The on-off valve according to the above [1], which is in a state.
[3] The on-off valve according to [2] above, wherein a biasing member that biases the operating member in a direction in which the operating member is locked is provided in the operating shaft accommodating portion.
[4] The on-off valve according to [2] or [3] above, wherein the tip of the operating shaft protrudes outside the operating member when the operating member is in the released state.
[5] At the lower end of the cylindrical portion of the operating member and the upper end of the operating shaft accommodating portion, a stepped portion is formed continuously in the circumferential direction on one of the opposing surfaces facing each other, and the stepped portion The above-mentioned [1] to [4] includes an engaging portion for engagement, and the operation member is rotatably locked to the operation shaft accommodating portion by engagement between the stepped portion and the engaging portion. ] The opening-and-closing valve given in any 1 of ].
[6] The on-off valve according to [5], wherein the engaging portion is provided with an inclined portion whose thickness gradually decreases toward the open end.
According to the configuration described in [1] above, since the outer peripheral shape of the operating member follows the shape of the rotating body, there are two points of action for rotating the operating shaft at symmetrical positions. Since the torque applied to the operating member when operating can be made smaller than that of the conventional lever type, the operation is facilitated. In addition, since the length of the arm (the diameter of the operating member) can be reduced compared to the conventional lever-type operating member, miniaturization can be achieved. Furthermore, since the operating lever does not protrude outward, there is no problem such as breakage of the lever. Since the movement of the operating member is restricted by the contact between the guide portion and the convex portion, erroneous operations are suppressed.
According to the configuration described in [2] above, since the amount of operation and the direction of operation of the operation member are defined by the contact between the protrusion and the groove, erroneous operations are suppressed. In addition, since the operating member is locked by positioning the protrusion in the vertical groove, the on-off valve can be maintained in a desired state.
According to the configuration described in [3] above, the operation member is corrected toward the lock position by the biasing member, so that the erroneous operation prevention effect is further enhanced.
According to the configuration described in [4] above, in the released state, the operating shaft protrudes from the operating member, so that the state of the on-off valve (open state or closed state) can be easily grasped from the appearance. .
According to the configuration described in [5] above, due to the engagement between the stepped portion and the engaging portion, the operating member is rotated while being mounted on the outer periphery of the operating shaft accommodating portion without being removed from the operating shaft accommodating portion. retained as possible.
According to the configuration described in [6] above, when the cylindrical portion of the operating member is fitted into the operating shaft accommodating portion, the stepped portion and the engaging portion can be easily deformed by the inclined portion to reach the engaging position. be able to.

１開閉弁
２本体
２１弁体収納部
２１１弁室
２２収容部
２３操作軸収容部
２３１収容空間
２３３突出部
２３３ａ傾斜部
２３４段部
２３５Ａ、２３５Ｂ凸部
３締着部材
３４連通路
４蓋体
４４排出路
５弁体
５１通路５１
５２係合凹部
６操作軸
６１係合凸部
６２軸部
６３接続部
６３１接続端
７操作部材
７１内部
７１１スプリング受け部
７２操作部本体
７２１挿入部
７３円筒部
７３１係合部
７３２傾斜部
７４Ａ、７４Ｂ案内部
７４１Ａ、７４１Ｂ縦溝
７４２Ａ、７４２Ｂ横溝 REFERENCE SIGNS LIST 1 on-off valve 2 main body 21 valve body housing 211 valve chamber 22 housing 23 operating shaft housing 231 housing space 233 projecting portion 233a inclined portion 234 stepped portion 235A, 235B convex portion 3 fastening member 34 communicating passage 4 lid 44 discharge Passage 5 Valve body 51 Passage 51
52 engagement recess 6 operation shaft 61 engagement projection 62 shaft 63 connection 631 connection end 7 operation member 71 inside 711 spring receiving portion 72 operation portion main body 721 insertion portion 73 cylindrical portion 731 engagement portion 732 inclined portion 74A, 74B Guiding parts 741A, 741B Vertical grooves 742A, 742B Lateral grooves

Claims

An on-off valve that is arranged in a liquid flow passage and that operates the flow and closing of the liquid,
a main body having a valve chamber containing a valve body, an inlet connected to the outlet of the container, and an outlet positioned downstream;
It is housed in the valve chamber and can switch the flow of liquid by rotating between an open position where the inflow port and the outflow port are in communication and a closed position where the flow between the inflow port and the outflow port is blocked. and
an operation shaft connected along the rotation axis of the valve body;
A connecting portion to which the operating shaft is connected at a central portion, and an outer peripheral portion having a shape along a shape of a rotating body having a rotation axis of the connected operating shaft as a center line, wherein the valve body is in an open position. and a closed position, an operation member that is rotated by bringing a pad of a finger into contact with the outer peripheral portion ;
an operating shaft accommodating portion provided in the main body and formed in a cylindrical shape,
The operating member is provided with a cylindrical portion that is fitted to the operating shaft accommodating portion and overlaps with the outside , and between the cylindrical portion and the operating shaft accommodating portion, the overlapping facing surfaces are opposed to each other at positions where: A convex portion is provided on the facing surface of the operating shaft accommodating portion , and a guide portion is provided on the facing surface of the cylindrical portion to regulate the operating direction of the operating member by coming into contact with the convex portion. on-off valve.

The guide portion has a longitudinal groove formed in the axial direction of the operating shaft and a lateral groove connected to one end of the longitudinal groove and formed in the circumferential direction,
When the projection is positioned in the vertical groove, the operation member is locked from rotating, and when the projection is positioned in the lateral groove, the operation member is unlocked so that it can be rotated. 2. The on-off valve according to claim 1, wherein the on-off valve is in a state.

3. The on-off valve according to claim 2, wherein an urging member for urging the operating member in a direction in which the operating member is locked is provided in the operating shaft accommodating portion.

3. The operation member has a disk-shaped operation portion main body to which the operation shaft is connected, and the cylindrical portion extends from the outer peripheral end of the operation portion main body toward the main body. The on-off valve according to any one of 1 .