JPS6215577Y2 - - Google Patents
Info
- Publication number
- JPS6215577Y2 JPS6215577Y2 JP4254782U JP4254782U JPS6215577Y2 JP S6215577 Y2 JPS6215577 Y2 JP S6215577Y2 JP 4254782 U JP4254782 U JP 4254782U JP 4254782 U JP4254782 U JP 4254782U JP S6215577 Y2 JPS6215577 Y2 JP S6215577Y2
- Authority
- JP
- Japan
- Prior art keywords
- movement
- vertical movement
- vertical
- operating shaft
- allowance part
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
- 230000001105 regulatory effect Effects 0.000 claims description 10
- 230000002265 prevention Effects 0.000 claims description 7
- 230000000694 effects Effects 0.000 description 2
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
Landscapes
- Safety Valves (AREA)
- Preventing Unauthorised Actuation Of Valves (AREA)
Description
【考案の詳細な説明】
本考案は、リフト弁等、軸線方向に摺動して開
閉する形式の弁の操作装置、特に押し回し式の操
作装置に関する。[Detailed Description of the Invention] The present invention relates to an operating device for a valve such as a lift valve that opens and closes by sliding in the axial direction, and particularly to a push-turn operating device.
この種操作装置として実公昭53−16662号公報
に記載のものが公知であるが、これはガスコツク
内にリフト弁を内蔵したものであり、閉子1を回
動操作する操作軸2を押し回し式とし、これと一
体的に昇降する弁体3を閉子1内の通過孔4内に
設け、操作軸2に突設した突片5,5を該操作軸
に外嵌固定するカム筒6に対偶させ、操作軸2の
全開位置及び全閉位置では突片5,5がカム筒6
に形成した第1、第2縦溝7,8に一致して、弁
体3が開弁状態に保持され、この中間位置では、
第1、第2縦溝7,8間をつなぐ舌片9により押
し込み状態に保持されて、弁体3が操作軸2の該
押し込みにより閉弁状態に保持されるようにした
ものである。(第1図,第2図)
従来のこのものでは、ガスコツクの開放操作時
に於いて操作軸2を押し込んだままで回動操作し
なければならないことから、いたずら等によるガ
スコツクの開放は防止できる利点があるが、ガス
コツクの閉止操作に於いても同様に押し回し操作
が必然となる。従つて、緊急時には速やかな閉止
操作ができない欠点がある。 A known operating device of this type is the one described in Japanese Utility Model Publication No. 16662/1983, which has a lift valve built into the gas tank, and the operating shaft 2 that rotates the closure 1 is pushed and turned. A cam cylinder 6 in which a valve body 3 that moves up and down integrally with the valve body 3 is provided in a passage hole 4 in the closure 1, and protrusions 5, 5 protruding from the operating shaft 2 are externally fitted and fixed to the operating shaft. When the operation shaft 2 is in the fully open position and the fully closed position, the projecting pieces 5, 5 are connected to the cam cylinder 6.
The valve body 3 is held in an open state in alignment with the first and second vertical grooves 7 and 8 formed in the valve body, and in this intermediate position,
The valve body 3 is held in a pressed state by a tongue piece 9 connecting between the first and second vertical grooves 7 and 8, and the valve body 3 is held in a closed state by the pushing of the operating shaft 2. (Fig. 1, Fig. 2) With this conventional device, when opening the gas kettle, the operating shaft 2 has to be rotated while being pushed in, so it has the advantage of preventing the gas kok from being opened by mischief. However, the same pushing and turning operation is necessary to close the gas kottok. Therefore, there is a drawback that a quick closing operation cannot be performed in an emergency.
本考案は、操作軸又はこれと一体回動する昇降
部材が開放操作経路とは別経路で復帰回動するよ
うにして、操作軸を押し込み操作することなく、
そのまま復帰回動できるようにし、緊急時に速や
かにガスコツクを閉止できるようにすることを目
的とする。 The present invention allows the operation shaft or the lifting member that rotates together with the operation shaft to return and rotate in a path different from the opening operation path, so that the operation shaft can be operated without pushing the operation shaft.
The purpose is to enable the gas tank to be rotated back as it is and to be able to close the gas tank quickly in an emergency.
上記目的を達成するための技術手段は、操作軸
にその軸線と直角方向に突出する突片を設け、本
体内流路に設け且上下両端位置で閉となる弁体を
常閉上昇方向に付勢させ、該弁体の弁軸頭部を前
記操作軸と一体的に昇降すべく対接させ、操作軸
に外嵌するカム筒に前記突片と対偶する移動経路
規制手段を設け、該移動経路規制手段を閉子の全
閉位置で突片が一致する第1縦移動許容部と、そ
の下端に続く開方向の第1横移動許容部と、該第
1横移動許容部に続き閉子の全開位置で突片が一
致する第2縦移動許容部と、この第2縦移動許容
部に続く微少範囲の復帰方向の第2横移動許容部
と、この第2横移動許容部に続きこれより上方に
向く第3縦移動許容部又は斜め移動許容部と、こ
の移動許容部の上端を第1縦移動許容部上端とを
つなぐ閉方向の第3横移動許容部とから成り、操
作軸の突片が前記移動経路規制手段に沿つて閉じ
た軌跡内で移動するように成し、第1横移動許容
部から第2縦移動許容部への移動経路及び第3横
移動許容部から第1縦移動許容部の移動経路中に
逆移動阻子部を設け、第2縦移動許容部の上端を
第1縦移動許容部の中程の高さに設定したことで
ある。 The technical means for achieving the above purpose is to provide the operating shaft with a protruding piece that protrudes perpendicularly to its axis, and attach a valve body that is installed in the flow path within the main body and closes at both the upper and lower end positions in the normally closed upward direction. The head of the valve shaft of the valve body is brought into contact with the operating shaft so as to be raised and lowered integrally with the operating shaft, and a movement path regulating means is provided on a cam cylinder fitted externally on the operating shaft and is opposed to the protruding piece. The path regulating means includes a first vertical movement allowing part whose protrusions coincide with each other when the closing member is in the fully closed position, a first lateral movement allowing part in the opening direction following the lower end thereof, and a closing member following the first lateral movement allowing part. a second vertical movement allowance part in which the protrusions coincide at the fully open position; a second lateral movement allowance part in the return direction within a minute range following this second vertical movement allowance part; and a second lateral movement allowance part following this second lateral movement allowance part. It consists of a third vertical movement allowance part or diagonal movement allowance part facing upward, and a third lateral movement allowance part in the closing direction that connects the upper end of this movement allowance part to the upper end of the first vertical movement allowance part. The projecting piece is configured to move within a closed locus along the movement path regulating means, and includes a movement path from the first lateral movement permission part to the second vertical movement permission part and from the third lateral movement permission part to the first lateral movement permission part. A reverse movement blocker part is provided in the movement path of the vertical movement permission part, and the upper end of the second vertical movement permission part is set at a height midway between the first vertical movement permission part.
上記技術手段によれば、操作軸の全閉位置では
突片が第1縦移動許容部に一致しており、弁体は
バネにより持ち上げられて弁座に当接し、閉子と
共に本体内流路を閉鎖している。 According to the above technical means, when the operating shaft is in the fully closed position, the protruding piece is aligned with the first vertical movement allowing part, the valve body is lifted by the spring and comes into contact with the valve seat, and together with the closure, the flow path in the main body is is closed.
次いで、操作軸を押し込み全開位置まで回動さ
せると、突片は第1縦移動許容部の下端から第1
横移動許容部に沿つて移動し、弁体は他方の弁座
に対接状態に維持されて本体内流路を閉鎖してい
る。全閉位置に達すると突片が第2縦移動許容部
に一致して上昇し、該突片が該第2縦移動許容部
の上端に当接し弁体は対向する二つの弁座の中間
に位置し開弁状態に保持される。すなわち、ガス
コツクが開となる。この時、突片は逆移動阻止部
を通過し該位置からの降下は阻止されている。 Next, when the operating shaft is pushed in and rotated to the fully open position, the protruding piece moves from the lower end of the first vertical movement allowance part to the first
The valve body moves along the lateral movement allowing portion and is maintained in contact with the other valve seat to close the flow path within the main body. When the fully closed position is reached, the protruding piece rises in line with the second vertical movement permitting part, and the protruding piece abuts the upper end of the second vertical movement permitting part, and the valve body is positioned between the two opposing valve seats. position and held in the open state. In other words, the gas tank is opened. At this time, the protrusion passes through the reverse movement prevention part and is prevented from descending from this position.
ガスコツクを閉止するには操作軸をそのまま全
閉方向に回動させればよい。この操作によつて突
片は第2縦移動許容部の上端位置から第2横移動
許容部を経て第3縦移動許容部又は斜移動許容部
に移向し弁体に付与した上昇付勢力で突片が操作
軸と共に上昇して該突片がその第3縦移動許容部
又は斜移動許容部の上端に移動し、さらにこれに
続く第3横移動許容部に沿つて突片が復帰回動
し、途中で突片が逆移動阻止部を通過して第1縦
移動許容部に復帰する。この間では、弁体が上方
の弁座を閉鎖しており、閉子が中間状態に置かれ
てもガスコツクは閉状態にある。また、突片が第
1縦移動許容部に復帰した時点では、該突片が第
3横移動許容部の逆移動阻止部を越えた位置にあ
ることから、操作軸の全閉位置から操作軸を押し
込まずにそのままで開回動するときには、前記逆
移動阻止部と突片とのワンウエイクラツチ作用に
より操作軸のこの開回動は阻止される。 To close the gas tank, simply rotate the operating shaft in the fully closed direction. By this operation, the protruding piece is moved from the upper end position of the second vertical movement allowance part, through the second lateral movement allowance part, to the third vertical movement allowance part or the diagonal movement allowance part, and is moved by the upward biasing force applied to the valve body. The protruding piece rises together with the operation shaft, the protruding piece moves to the upper end of the third vertical movement allowance part or the diagonal movement allowance part, and the protrusion piece returns and rotates along the subsequent third horizontal movement allowance part. On the way, the protruding piece passes through the reverse movement preventing part and returns to the first vertical movement allowing part. During this time, the valve body closes the upper valve seat, and even if the closure is placed in the intermediate position, the gas tank remains closed. Furthermore, at the time when the protruding piece returns to the first vertical movement allowing part, the protruding piece is in a position beyond the reverse movement preventing part of the third lateral movement allowing part, so the operating shaft changes from the fully closed position of the operating shaft. When the operating shaft is rotated open without being pushed in, the opening rotation of the operating shaft is prevented by the one-way clutch action of the reverse movement prevention portion and the protrusion.
上記のように、上記手段によれば、操作軸の全
開位置からの復帰回動は操作軸を押し込むことな
くそのまま復帰回動させると突片が開回動とは別
経路を通つて、初期位置に復帰し、しかも、初期
位置からの開回動は押し込み操作が必然となる。 As described above, according to the above means, when the operating shaft returns from the fully open position, if the operating shaft is returned to its original position without being pushed in, the protrusion passes through a different path from the opening rotation, and returns to the initial position. Moreover, the opening movement from the initial position requires a pushing operation.
本考案は上記構成であるから次の特有の効果を
有する。 Since the present invention has the above configuration, it has the following unique effects.
操作軸を押し込み操作することなく、そのまま
復帰回動できるようにしたから、緊急時等に速や
かにガスコツクを閉止できることとなる。 Since the operation shaft can be rotated back without having to be pushed in, the gas tank can be closed quickly in an emergency.
操作軸が全開から微少範囲、すなわち、突片が
第2縦移動許容部から外れるまでの微少範囲の回
動により弁体が全閉状態となるから、閉子の開度
が流量的に全開状態にある間に弁体が全閉となる
ため、操作軸がいずれの状態にあつても、本体内
流路が流量制限状態、すなわち、弁体が半開状態
に放置されるような不都合が防止できる。 Since the valve body is fully closed when the operating shaft rotates within a minute range from fully open, that is, until the protrusion comes off the second vertical movement allowable part, the closing position is fully open in terms of flow rate. Since the valve body is fully closed while the valve is in the position, no matter what state the operating shaft is in, the flow path inside the main body is in a flow-restricted state, which prevents the inconvenience of leaving the valve body in a half-open state. .
操作軸を全開位置からそのまま復帰回動させる
構成として、既述の従来例に於ける第2縦溝の一
側(第1縦溝側)をカム斜面とし、該カム斜面と
突片とのカム対偶により操作軸の復帰回動時該突
片を押し込む構成も考えられるが、この場合には
カム斜面と突片との摩擦抵抗により弁体が半開状
態に放置される危険性がある。ところが、本考案
の上記構成によればかかる心配がない。 As a configuration in which the operation shaft is rotated back from the fully open position as it is, one side of the second vertical groove (the first vertical groove side) in the conventional example described above is used as a cam slope, and the cam between the cam slope and the protrusion A configuration in which the protruding piece is pushed in by a pair when the operating shaft is rotated back is also considered, but in this case, there is a risk that the valve body may be left in a half-open state due to the frictional resistance between the cam slope and the protruding piece. However, according to the above configuration of the present invention, there is no such concern.
さらに、上記構成では第1横移動許容部から第
2縦移動許容部への移動経路に逆移動阻止部を設
けているため、操作軸の全開位置では、これを押
し込み操作できないこととなり、操作軸による操
作によつては流路の不完全開状態を生じさせ得な
いこととなる。従つて不完全開による不都合は完
全に防止できる。 Furthermore, in the above configuration, since the reverse movement prevention part is provided in the movement path from the first lateral movement allowance part to the second vertical movement allowance part, when the operation shaft is in the fully open position, it cannot be pushed in and operated. This means that depending on the operation, the flow path cannot be left in an incompletely open state. Therefore, inconveniences caused by incomplete opening can be completely prevented.
以下、本考案の実施例を図面に基づいて説明す
ると、この実施例では、第3図の如く、ガスコツ
クを過流出防止弁付のガスコツクとし、閉子1の
下方に空室10を設け、該空室の下方上流側にさ
らに過流出防止弁11を配設したものであり、操
作軸2と一体的に昇降する弁体3は該空室に位置
して閉子1の閉子孔4の下端に形成した弁座12
と過流出防止弁11の弁座口13の中間に位置し
て弁軸14の頭部15と閉子1の上端部との間に
介装したバネ16により上昇方向に付勢され、通
常は上方の弁座12に当接している。 Hereinafter, an embodiment of the present invention will be described based on the drawings. In this embodiment, as shown in FIG. An overflow prevention valve 11 is further disposed on the lower upstream side of the empty chamber, and the valve body 3, which moves up and down integrally with the operating shaft 2, is located in the empty chamber and closes the closing hole 4 of the closing member 1. Valve seat 12 formed at the lower end
and the valve seat opening 13 of the overflow prevention valve 11, and is biased upward by a spring 16 interposed between the head 15 of the valve shaft 14 and the upper end of the closure 1. It is in contact with the upper valve seat 12.
次に、上記した突片は、この実施例では、操作
軸2の下端部に直交させて挿通させた一対のピン
17と成し、操作軸内にこれらのピンの進出力を
付与させるために圧縮バネ18を挿入して、これ
らピンを進退自在で且進出方向に付勢させさらに
最進出位置を規制したものとしてある。また、該
ピンは閉子1の筒軸に形成したスリツトに嵌合
し、操作軸2と閉子1とはかみ合つている。 Next, in this embodiment, the above-mentioned protruding pieces are formed into a pair of pins 17 inserted orthogonally through the lower end of the operating shaft 2, and in order to apply an advancing force of these pins into the operating shaft. A compression spring 18 is inserted to allow these pins to move forward and backward and bias them in the advancing direction, further regulating the most advanced position. Further, the pin fits into a slit formed in the cylindrical shaft of the closure 1, and the operating shaft 2 and the closure 1 are engaged with each other.
カム筒6はコツク本体36と別体に構成され
て、各縦移動許容部は縦溝に、各横移動許容部は
横溝にし、これら縦溝及び横溝から成る第1カム
溝Aと第2カム溝Bがカム筒6の胴部に形成さ
れ、ピン17の先端が各溝部に嵌入係合し、これ
らカム溝が移動経路規制手段となる。また、第1
縦溝7と第2縦溝8の間は90度に設定されると共
に第1縦溝7の下端から第2縦溝8側に横溝状部
20が設けられ、一方の第1カム溝の横溝状部に
よりピン17の回動範囲を90度に規制し、これに
より、操作軸2すなわち閉子1の回動角度を90度
に規制してある(第4図、第5図)
また、第1縦溝7、第2縦溝8の軸線方向の深
さはあらかじめ適宜に設定してあり、弁体3と上
方の弁座12との当接状態でピン17と第1縦溝
7及び第1カム溝の第2縦溝の上端との間に適宜
間隙を有すべく構成し、該第2縦溝8は弁体3を
弁座12,23の中間位置に保持すべく第1縦溝
7より浅くしてあり、他方、第2カム溝Bの第2
縦溝8は横溝状部20より上方に形成されてその
下端は第1段部21となつており、横溝状部20
と該第2縦溝8とは傾斜面22を介してつながつ
ている。 The cam cylinder 6 is constructed separately from the main body 36, and each vertical movement permitting portion is a vertical groove, and each lateral movement permitting portion is a horizontal groove, and a first cam groove A and a second cam consisting of the vertical grooves and the horizontal grooves are formed. Grooves B are formed in the body of the cam cylinder 6, and the tips of the pins 17 fit into and engage with the respective grooves, and these cam grooves serve as movement path regulating means. Also, the first
The distance between the vertical groove 7 and the second vertical groove 8 is set at 90 degrees, and a horizontal groove-shaped portion 20 is provided from the lower end of the first vertical groove 7 to the second vertical groove 8 side, and the horizontal groove of one first cam groove The rotation range of the pin 17 is restricted to 90 degrees by the shaped portion, thereby restricting the rotation angle of the operating shaft 2, that is, the closure 1 to 90 degrees (Figures 4 and 5). The axial depths of the first vertical groove 7 and the second vertical groove 8 are set appropriately in advance. The second vertical groove 8 is configured to have an appropriate gap between the first cam groove and the upper end of the second vertical groove, and the second vertical groove 8 is connected to the first vertical groove in order to hold the valve body 3 at an intermediate position between the valve seats 12 and 23. 7, and on the other hand, the second cam groove B of the second cam groove B
The vertical groove 8 is formed above the horizontal groove-like part 20, and its lower end becomes a first step part 21, and the horizontal groove-like part 20
and the second longitudinal groove 8 are connected via an inclined surface 22.
また、第2カム溝Bのピン17の閉方向の移動
経路23下方には第2段部24が形成され、該移
動経路と第1縦溝7との間は、第1縦溝側を垂直
面とし他方を傾斜面とするノコ刃状断面の山部2
5と成し、他方、第1カム溝Aの第2縦溝8の上
部と第1縦溝7の上部とは第2縦溝側を傾斜面2
6とし他方を垂直面とした偏平な山形部27とし
てある。又、第2縦溝8と上記傾斜面26とは隣
接して設けられており、第2縦溝8の上端側部
は、傾斜面26側に開放して連通状態になつてい
る。そして、この連通部が、既述の技術的手段に
記載した第2横移動許容部に対応する。 Further, a second step portion 24 is formed below the movement path 23 of the pin 17 in the closing direction of the second cam groove B, and between the movement path and the first longitudinal groove 7, the first longitudinal groove side is vertically Mountain part 2 with a sawtooth cross section where one side is a plane and the other side is an inclined plane
5, and on the other hand, the upper part of the second longitudinal groove 8 of the first cam groove A and the upper part of the first longitudinal groove 7 have the second longitudinal groove side facing the inclined surface 2.
6 and a flat chevron portion 27 with the other side being a vertical surface. Further, the second longitudinal groove 8 and the inclined surface 26 are provided adjacent to each other, and the upper end side portion of the second longitudinal groove 8 is opened to the inclined surface 26 side and is in a communicating state. This communicating portion corresponds to the second lateral movement allowing portion described in the above-mentioned technical means.
上記実施例のものでは、既述の作用で、一方の
ピン17の先端が、第1カム溝Aの第1縦溝7→
横溝状部20→第2縦溝8→山形部27→第1縦
溝7の閉じた経路を移動し、他方のピン17の先
端は、第2カム溝Bの第1縦溝7→横溝状部20
→傾斜面22→第2縦溝8→閉方向の移動経路2
3→山部25→第1縦溝7の閉じた経路を移動し
てコツク全開位置でのみコツク本体内の流路が全
開となり、他の位置では確実に流路遮断状態とな
る。また、操作軸の閉回動域では、その全域で操
作軸の押し込み操作は不能で操作軸の操作による
不完全開状態は確実に防止できる。 In the above embodiment, the tip of one pin 17 is moved from the first vertical groove 7 of the first cam groove A to
The tip of the other pin 17 moves along the closed path of the horizontal groove 20 → second vertical groove 8 → chevron 27 → first vertical groove 7, and the tip of the other pin 17 moves along the closed path of the horizontal groove 20 → second vertical groove 8 → chevron 27 → first vertical groove 7 Part 20
→ Inclined surface 22 → second vertical groove 8 → moving path 2 in the closing direction
3 → mountain part 25 → the closed path of the first longitudinal groove 7, and only at the fully open position of the kettle, the flow path in the kettle main body becomes fully open, and at other positions, the flow path is reliably blocked. In addition, in the closing rotation range of the operating shaft, the pushing operation of the operating shaft is impossible in the entire region, and an incomplete opening state due to the operation of the operating shaft can be reliably prevented.
次に、第6図に示す実施例のものは、突片とな
るピン17を操作軸2に固定状態に突設し、移動
経路規制手段を上記実施例と同様に縦溝、横溝の
組み合せにより構成し、第1横移動許容部に対応
する第1横溝30から第2縦移動許容部に対応す
る第2縦溝8への移動経路中に進出方向に付勢し
た出没自在の第1山部31を、第3横移動許容部
に対応する第3横溝32から第1縦移動許容部に対
応する第1縦溝7への移動経路中に進出方向に付
勢した出没自在の第2山部33を、それぞれ設け
たものである。又、第2縦溝8に隣接する部分に
は第3縦溝35が設けられており、上記第2縦溝
8の上端側部は前記第3縦溝35の下端側部に開
放連通している。そして、この実施例のもので
は、上記連通部が、既述の技術的手段に記載した
第2横移動許容部に対応する。 Next, in the embodiment shown in FIG. 6, a pin 17 serving as a projecting piece is fixedly protruded from the operating shaft 2, and the movement path regulating means is formed by a combination of vertical grooves and horizontal grooves as in the above embodiment. a retractable first mountain portion which is biased in the advancing direction during the movement path from the first lateral groove 30 corresponding to the first lateral movement permitting portion to the second vertical groove 8 corresponding to the second vertical movement permitting portion; 31 is a retractable second mountain part which is biased in the advancing direction during the movement path from the third lateral groove 32 corresponding to the third lateral movement allowance part to the first vertical groove 7 corresponding to the first vertical movement allowance part. 33, respectively. Further, a third vertical groove 35 is provided in a portion adjacent to the second vertical groove 8, and the upper end side of the second vertical groove 8 is open and communicated with the lower end side of the third vertical groove 35. There is. In this embodiment, the communication section corresponds to the second lateral movement allowing section described in the technical means described above.
又、この場合も、上記実施例と同様に作用し、
同様の効果を有する。 Also, in this case, it works in the same way as in the above embodiment,
Has a similar effect.
尚、第1山部31又は第2山部33は第7図の
如く、カム筒6と別体に構成して、コツク本体2
0との間にバネ34を介装するれば、上記した進
出付勢力が付与される。 Incidentally, the first ridge portion 31 or the second ridge portion 33 is constructed separately from the cam cylinder 6 as shown in FIG.
If a spring 34 is interposed between 0 and 0, the above-mentioned advance biasing force is applied.
また、ピン17と上記縦溝、横溝の組み合せか
ら成る移動経路規制手段との組み合せは一組とす
ることも二組とすることも可能である。 Further, the pin 17 and the movement path regulating means made of a combination of the above-mentioned vertical grooves and horizontal grooves may be combined in one set or in two sets.
さらに、上記実施例の場合に、第3縦移動許容
部に対応する第3縦溝35を復帰回動方向(閉子
の閉回動方向)に傾斜する斜め溝とすることも可
能であり、この場合には、操作軸の閉回動が円滑
となる。また、前記第3縦溝35又は斜め溝の上
部に第2山部31と同様の逆移動阻止部を設けれ
ば、弁体3が上昇していつたん閉弁すると、閉子
の閉回動途中での開弁操作も防止できる。 Furthermore, in the case of the above embodiment, the third vertical groove 35 corresponding to the third vertical movement allowing portion may be an oblique groove that is inclined in the return rotation direction (the closing rotation direction of the closing member), In this case, the closing rotation of the operating shaft becomes smooth. In addition, if a reverse movement prevention part similar to the second mountain part 31 is provided at the upper part of the third vertical groove 35 or the diagonal groove, when the valve body 3 rises and once the valve is closed, the closing rotation of the closing element will occur. Opening the valve mid-way can also be prevented.
第1図は従来例の断面図、第2図は要部の斜視
図、第3図は本考案実施例の断面図、第4図はこ
れに用いたカム筒及び操作軸の分解斜視図、第5
図はカム筒の第1カム溝を示す方向からの斜視
図、第6図は他の実施例のカム筒の切欠斜視図、
第7図は要部のX−X断面図であり、図中
3……弁体、6……カム筒、7……第1縦移動
許容部に対応する第1縦溝、8……第2縦移動許
容部に対応する第2縦溝、17……突片に対応す
るピン、20……横溝状部、25……逆移動阻止
部に対応する山部。
Fig. 1 is a sectional view of the conventional example, Fig. 2 is a perspective view of the main parts, Fig. 3 is a sectional view of the embodiment of the present invention, and Fig. 4 is an exploded perspective view of the cam cylinder and operating shaft used in this. Fifth
The figure is a perspective view from the direction showing the first cam groove of the cam cylinder, FIG. 6 is a cutaway perspective view of the cam cylinder of another embodiment,
FIG. 7 is a sectional view taken along the line X-X of the main parts, and in the figure, 3...valve body, 6...cam cylinder, 7...first vertical groove corresponding to the first vertical movement permitting part, 8... 2. Second vertical groove corresponding to the vertical movement permitting part, 17... Pin corresponding to the projecting piece, 20... Horizontal groove-like part, 25... Mountain part corresponding to the reverse movement preventing part.
Claims (1)
設け、本体内流路に設け且上下両端位置で閉とな
る弁体を常閉上昇方向に付勢させ、該弁体の弁軸
頭部を前記操作軸と一体的に昇降すべく対接さ
せ、操作軸に外嵌するカム筒に前記突片と対偶す
る移動経路規制手段を設け、該移動経路規制手段
を閉子の全閉位置で突片が一致する第1縦移動許
容部と、その下端に続く開方向の第1横移動許容
部と、該第1横移動許容部に続き閉子の全開位置
で突片が一致する第2縦移動許容部と、この第2
縦移動許容部に続く微少範囲の復帰方向の第2横
移動許容部と、この第2横移動許容部に続きこれ
より上方に向く第3縦移動許容部又は斜め移動許
容部と、この移動許容部の上端と第1縦移動許容
部上端とをつなぐ閉方向の第3横移動許容部とか
ら成り、操作軸の突片が前記移動経路規制手段に
沿つて閉じた軌跡内で移動するように成し、第1
横移動許容部から第2縦移動許容部への移動経路
及び第3横移動許容部から第1縦移動許容部の移
動経路中に逆移動阻止部を設け、第2縦移動許容
部の上端を第1縦移動許容部の中程の高さに設定
した弁操作装置。 The operating shaft is provided with a protruding piece that protrudes in a direction perpendicular to its axis, which biases the valve element that is provided in the flow path within the main body and closes at both the upper and lower end positions in a normally closed upward direction, and the valve stem head of the valve element. is brought into contact with the operating shaft so as to be raised and lowered integrally with the operating shaft, and a cam cylinder fitted onto the operating shaft is provided with a moving path regulating means that is opposed to the protruding piece, and the moving route regulating means is set in the fully closed position of the shutter. A first vertical movement permitting portion with which the protrusions coincide, a first lateral movement permitting portion in the opening direction following the lower end thereof, and a second horizontal movement permitting portion with which the protrusions coincide at the fully open position of the closure following the first lateral movement permitting portion. The vertical movement allowance part and this second
a second lateral movement allowance part in the return direction within a minute range following the vertical movement allowance part; a third vertical movement allowance part or diagonal movement allowance part which follows the second lateral movement allowance part and faces upward therefrom; and this movement allowance part. and a third lateral movement allowance part in the closing direction connecting the upper end of the part and the upper end of the first vertical movement allowance part, so that the protrusion of the operation shaft moves within a closed trajectory along the movement path regulating means. The first
A reverse movement prevention part is provided in the movement path from the lateral movement permission part to the second vertical movement permission part and in the movement path from the third lateral movement permission part to the first vertical movement permission part, and the upper end of the second vertical movement permission part is A valve operating device set at a height midway through the first vertical movement allowable section.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP4254782U JPS58144161U (en) | 1982-03-25 | 1982-03-25 | valve operating device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP4254782U JPS58144161U (en) | 1982-03-25 | 1982-03-25 | valve operating device |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS58144161U JPS58144161U (en) | 1983-09-28 |
JPS6215577Y2 true JPS6215577Y2 (en) | 1987-04-20 |
Family
ID=30053663
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP4254782U Granted JPS58144161U (en) | 1982-03-25 | 1982-03-25 | valve operating device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS58144161U (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2542871Y2 (en) * | 1990-07-04 | 1997-07-30 | カヤバ工業株式会社 | Unload valve |
KR102469307B1 (en) * | 2021-02-26 | 2022-11-22 | 문태준 | A Plug valve with improved leakage protection |
-
1982
- 1982-03-25 JP JP4254782U patent/JPS58144161U/en active Granted
Also Published As
Publication number | Publication date |
---|---|
JPS58144161U (en) | 1983-09-28 |
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