JPH06300145A - Sluice valve - Google Patents

Sluice valve

Info

Publication number
JPH06300145A
JPH06300145A JP11006793A JP11006793A JPH06300145A JP H06300145 A JPH06300145 A JP H06300145A JP 11006793 A JP11006793 A JP 11006793A JP 11006793 A JP11006793 A JP 11006793A JP H06300145 A JPH06300145 A JP H06300145A
Authority
JP
Japan
Prior art keywords
valve
hole
valve body
sluice
sluice valve
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.)
Granted
Application number
JP11006793A
Other languages
Japanese (ja)
Other versions
JP3065196B2 (en
Inventor
Takeo Nishiwaki
武夫 西脇
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
SEIBU SHOJI KK
Original Assignee
SEIBU SHOJI KK
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by SEIBU SHOJI KK filed Critical SEIBU SHOJI KK
Priority to JP5110067A priority Critical patent/JP3065196B2/en
Publication of JPH06300145A publication Critical patent/JPH06300145A/en
Application granted granted Critical
Publication of JP3065196B2 publication Critical patent/JP3065196B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Abstract

PURPOSE:To provide a sluice valve which is designed to prevent wear of a packing attached to the periphery of the front end of the through-hole of a mounting means and have a shutter mechanism sufficiently functioned even when it is used for a long year, resulting in prevention of outflow of fluid to the outside of a valve box. CONSTITUTION:A sluice valve body 7 is elevated in a direction crossing the flow passage of a valve box 2 at right angles to open and close the flow passage. A valve body oscillation preventing mechanism P1 attached to the sluice valve 1 is constituted to contain a press member 34 and removably arranged to the valve box 2 through a cylinder mounting means 35 having a through-hole 32 communicated with the inside and the outside of the sluice valve. A shutter mechanism S having a shutter plate 39 to open and close the through-hole 32 is constituted to open and close the through-hole 32 through movement of the shutter plate 39 in a state to be separated away from the front end of the cylinder mounting means 35 and close the through-hole 32 in a state that the shutter plate 39 is brought into close contact with the front end of the cylinder mounting means 35.

Description

【発明の詳細な説明】Detailed Description of the Invention

【0001】[0001]

【産業上の利用分野】この発明は、弁箱の流路に対して
ほぼ直交方向に昇降してその流路を開閉する仕切弁体を
備えた仕切弁に関するものである。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a sluice valve provided with a sluice valve body that moves up and down in a direction substantially orthogonal to a flow passage of a valve box to open and close the flow passage.

【従来の技術】仕切弁の仕切弁体は、弁箱の流路を完全
に閉じたり開放するばかりでなく、流体物の流量を調整
するために、半開きなど全開しない状態で使用される場
合がある。このような全開しない使用状態にあつては、
流体物が仕切弁体に激しくぶつかつてその仕切弁体をが
たつかせ、永きにわたつて使用する間に弁体、あるいは
弁箱とくにその弁座などに傷が生じ、ついには仕切弁体
を完全に閉じてもそれらの傷から漏水が発生するような
事態を招いた。
2. Description of the Related Art A sluice valve element of a sluice valve is used not only for completely closing or opening a flow path of a valve box, but also for fully adjusting the flow rate of a fluid such as a half-open state. is there. In such a use condition that it is not fully opened,
A fluid object hits the sluice valve element violently and rattles the sluice valve element, and the valve element, or the valve box, especially its valve seat, is damaged during long-term use, and the sluice valve element is completely damaged. Even if it was closed, it caused water leakage from those scratches.

【0002】そのため、本願出願人は、仕切弁体を前記
弁箱に設けられた一方の弁座に密着するように押圧固定
する弁体ぶれ止め機構を設けて、仕切弁体が半開きなど
全開しない場合でも、そのがたつきを防止するととも
に、長年使用しても弁体、弁座などに傷が付きにくい仕
切弁を提案した(特開平5ー10460号公報、図5乃
至図9参照)。
Therefore, the applicant of the present application provides a valve body baffle mechanism for pressing and fixing the sluice valve body so as to be in close contact with one valve seat provided in the valve box, and the sluice valve body does not fully open such as being half opened. Even in such a case, a sluice valve has been proposed, which prevents the rattling and prevents the valve body, the valve seat, and the like from being scratched even when used for many years (see JP-A-5-10460, FIGS. 5 to 9).

【0003】[0003]

【発明が解決しようとする課題】上記仕切弁では、弁体
ぶれ止め機構が、弁箱の内外に通じる貫通孔を備えた取
付手段を介して弁箱に取り外し自在に設けられるととも
に、その貫通孔を弁箱の外部から操作するシヤツター機
構により任意に開閉できるようにしたので、弁体ぶれ止
め機構を修理などのため弁箱より取り外す際には、シヤ
ツター機構を操作することにより前記貫通孔を閉じさえ
しておけば、流体物が弁箱外に流出するのを防ぐことが
できる。
In the above sluice valve, the valve body anti-sway mechanism is detachably provided in the valve box through the mounting means having the through hole communicating with the inside and outside of the valve box, and the through hole is provided. The shutter mechanism is operated from the outside of the valve box so that it can be opened and closed as desired.Therefore, when removing the valve body shake prevention mechanism from the valve box for repairs etc., the through hole can be closed by operating the shutter mechanism. As long as this is done, the fluid can be prevented from flowing out of the valve box.

【0004】しかし、前記シヤツター機構は、貫通孔を
備えた取付手段の前端と常に当接した状態で貫通孔を開
閉するように移動したため、その取付手段の貫通孔の前
端周囲に取り付けられたパツキン等が摩耗しやすく、永
きにわたつて使用する間に前記パツキン等が破損してそ
のシヤツター機構が充分に機能しなくなるため、前記貫
通孔を完全に閉じることができなくなり、流体物が弁箱
外に流出する虞があつた。
However, since the shutter mechanism is moved so as to open and close the through hole in a state where it is always in contact with the front end of the attaching means having the through hole, the packing mechanism attached around the front end of the through hole of the attaching means. Etc. are easily worn and the packing is damaged during long-term use, and the shutter mechanism does not function sufficiently, so the through hole cannot be completely closed, and the fluid is outside the valve box. There was a risk of leakage.

【0005】この発明は、このような従来の問題点に鑑
みてなされたものであり、その目的とするところは、取
付手段の貫通孔の前端周囲に取り付けられたパツキン等
の摩耗を防止するとともに、長年使用してもシヤツター
機構が充分に機能し、もつて流体物が弁箱外に流出する
ことを未然に防止できる、仕切弁を提供しようとするも
のである。
The present invention has been made in view of such conventional problems, and an object thereof is to prevent wear of a packing or the like mounted around the front end of the through hole of the mounting means. The purpose of the present invention is to provide a sluice valve in which the shutter mechanism can sufficiently function even after being used for many years and the fluid can be prevented from flowing out of the valve box.

【課題を解決するための手段】この発明に係る仕切弁
は、前記目的を達成するために、次の構成からなる。す
なわち、弁箱の流路に対してほぼ直交方向に昇降してそ
の流路を開閉する仕切弁体と、この仕切弁体が半開きな
ど全開しない状態で、その仕切弁体を前記弁箱に設けら
れた一方の弁座に密着するように押圧固定する押さえ部
材を有する弁体ぶれ止め機構とを備える仕切弁におい
て、前記弁体ぶれ止め機構は、前記仕切弁の内外に通じ
る貫通孔を備えた取付手段を介して、前記弁箱に設けら
れている。そして、その取付手段の貫通孔を開閉するシ
ヤツター部材を有するシヤツター機構は、そのシヤツタ
ー部材を前記取付手段の前端より離した状態で移動させ
て貫通孔を開閉し、そのシヤツター部材を前記取付手段
の前端と密接させた状態で貫通孔を閉じるように構成さ
れていることを特徴とする。
The sluice valve according to the present invention has the following constitution in order to achieve the above object. That is, a sluice valve element that moves up and down in a direction substantially orthogonal to the flow path of the valve box to open and close the flow path, and the sluice valve element is provided in the valve box in a state where the sluice valve element is not fully opened, such as half-opened. And a valve body anti-shake mechanism having a pressing member that press-fixes the one valve seat so that the valve body anti-shake mechanism has a through hole communicating with the inside and outside of the sluice valve. It is provided on the valve box via a mounting means. And, a shutter mechanism having a shutter member for opening and closing the through hole of the attaching means opens and closes the through hole by moving the shutter member away from the front end of the attaching means, and the shutter member is attached to the attaching means. It is characterized in that the through hole is closed in a state of being brought into close contact with the front end.

【0006】前記弁体ぶれ止め機構は、前記取付手段を
介して、弁箱に取り外し自在に設けられているのが好ま
しい。
It is preferable that the valve body anti-sway mechanism is detachably provided in the valve box via the mounting means.

【0007】前記シヤツター機構が、油圧駆動機構を備
え、この油圧駆動機構により、前記シヤツター部材を移
動させるのが好ましい。
It is preferable that the shutter mechanism includes a hydraulic drive mechanism, and the hydraulic drive mechanism moves the shutter member.

【0008】また、前記流路の断面形状が、ほぼ円形状
であるのが望ましい。
Further, it is desirable that the cross-sectional shape of the flow path is substantially circular.

【0009】また、前記シヤツター部材が、前記取付手
段の前端より離れた状態で移動して貫通孔を開閉できる
ように、このシヤツター部材もしくは前記貫通孔を備え
た取付手段の少なくともいずれか一方に段部が設けられ
ているのが望ましい。
Further, at least one of the shutter member and the mounting means having the through hole is provided so that the shutter member can be moved away from the front end of the mounting means to open and close the through hole. It is desirable that a section is provided.

【0010】更に、前記仕切弁体には、この仕切弁体を
昇降させるための弁軸が連結され、この弁軸の外周にグ
リースを供給するためのグリース供給機構が設けられて
いるのが望ましい。
Further, it is desirable that a valve shaft for raising and lowering the sluice valve body is connected to the sluice valve body, and a grease supply mechanism for supplying grease to the outer circumference of the valve shaft is provided. .

【作用】弁体ぶれ止め機構は、仕切弁の内外に通じる貫
通孔を備えた取付手段を介して、弁箱に設けられる。そ
して、シヤツター機構は、そのシヤツター部材を前記貫
通孔を備える取付手段の前端より離した状態で移動させ
て貫通孔を開閉し、そのシヤツター部材を前記取付手段
の前端と密接させた状態で貫通孔を閉じる。
The valve body anti-shake mechanism is provided in the valve box through the mounting means having a through hole communicating with the inside and outside of the sluice valve. The shutter mechanism moves the shutter member away from the front end of the attachment means having the through hole to open and close the through hole, and the shutter member is brought into close contact with the front end of the attachment means through the through hole. Close.

【実施例】以下、この発明の第1実施例を図1乃至図8
に基づいて説明する。
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A first embodiment of the present invention will be described below with reference to FIGS.
It will be described based on.

【0011】この仕切弁の弁本体1は、弁箱2と、この
弁箱2のほぼ中央上部に形成される弁収容室3を覆う弁
蓋4とを備える。この弁箱2は、断面ほぼ円形状であつ
て、水平方向に延びる断面ほぼ円形状の流路5を形成し
ており、この流路5に対してほぼ直交方向に昇降するよ
うに、弁軸6に連結された仕切弁体7が設けられてい
る。この仕切弁体7は、例えば図2で明示するように中
空状であつて、一方の側面には所要の勾配が施された周
縁を形成する環状砲金部8が、また、他方の側面にはそ
のような勾配が施されない周縁を形成する環状砲金部9
がそれぞれ設けられている。そして、これら環状砲金部
8, 9は、弁箱2側に取り付けられた砲金製の環状弁座
10, 11に対してくさび状に密接するようになつてい
る。よつて、図示しない電気駆動装置(もしくは手動回
転のハンドル)の操作により弁軸6が回転すると、仕切
弁体7が昇降し、流路5を開閉する。
The valve body 1 of this sluice valve is provided with a valve box 2 and a valve lid 4 which covers a valve accommodating chamber 3 formed in an upper part of the center of the valve box 2. The valve box 2 has a substantially circular cross section, and forms a flow path 5 having a substantially circular cross section that extends in the horizontal direction. The valve shaft 2 moves up and down in a direction substantially orthogonal to the flow path 5. A gate valve body 7 connected to 6 is provided. The sluice valve body 7 is, for example, hollow as shown in FIG. 2, and has an annular gun metal portion 8 forming a peripheral edge with a required slope on one side surface, and another side surface on the other side surface. Annular gun metal part 9 forming a peripheral edge not subjected to such a gradient
Are provided respectively. The annular gun metal parts 8 and 9 are arranged in a wedge shape to closely contact the gun-made annular valve seats 10 and 11 mounted on the valve box 2 side. Therefore, when the valve shaft 6 is rotated by the operation of an electric drive device (or a manually rotated handle) (not shown), the gate valve body 7 moves up and down to open and close the flow path 5.

【0012】そして、仕切弁体7が下降して流路5を完
全に閉じることができるように、仕切弁体7の直下の弁
箱内底部には、その仕切弁体7の下部との当接を避ける
ための凹溝13が設けられている。この凹溝13の側壁
部14, 15には、凹溝13に通じる小径の貫通孔16
および大径の貫通孔17がそれぞれ対応位置するように
明けられている(図1参照)。小径の貫通孔16には、
例えば、油圧スリース弁もしくは電動弁などからなる送
水弁18および手動で開閉できる予備の弁19を備え
た、送水管20が接続される。また、大径の貫通孔17
には、同じく油圧スリース弁もしくは電動弁などからな
る排水弁21および手動で開閉できる予備の弁22を備
えた、排水管23が取り付けられる。そして、送水管2
0には図示しない給水源から洗いだし水、望ましくは圧
縮空気とともに送水されるジエツト水が供給され、か
つ、その洗いだし水は、流体物の流れの方向に直交する
方向で凹溝13内へと送り込まれて、凹溝13内に溜ま
つた土、砂、ゴミなどを洗い流し、排水管23を通じて
弁箱2の外部へと排水される。
Then, the bottom of the sluice valve body 7 contacts the lower portion of the sluice valve body 7 so that the sluice valve body 7 can descend to completely close the flow path 5. A concave groove 13 is provided to avoid contact. The side walls 14 and 15 of the groove 13 have a small-diameter through hole 16 communicating with the groove 13.
And large-diameter through holes 17 are opened so as to correspond to each other (see FIG. 1). In the small-diameter through hole 16,
For example, a water supply pipe 20 including a water supply valve 18 composed of a hydraulic sleeve valve or an electric valve and a spare valve 19 that can be opened and closed manually is connected. Also, the large-diameter through hole 17
A drainage pipe 23 having a drainage valve 21 which is also a hydraulic sleeve valve or an electric valve and a spare valve 22 which can be opened and closed manually is attached to the. And the water pipe 2
0 is supplied with washing water from a water supply source (not shown), preferably jet water sent together with compressed air, and the washing water is introduced into the groove 13 in a direction orthogonal to the flow direction of the fluid. The soil, sand, dust and the like accumulated in the concave groove 13 are washed away and drained to the outside of the valve box 2 through the drain pipe 23.

【0013】もつとも、これら送水管20および排水管
23を開閉して洗いだし水を送排水する送水弁18およ
び排水弁21は、好ましくは仕切弁体7が流路5を完全
に閉じる前に開弁し、流路を完全に閉じた後に閉弁する
ように制御される。また、洗いだし水の送水および土、
砂、ゴミなどの排出が容易となるように、送水管20お
よび排水管21の径を連続的に徐々に大きくなるように
形成し、かつ、両管20, 21の上部側が水平で底部側
が下り勾配となるような構造にしても良い。
In addition, the water supply valve 18 and the water discharge valve 21 for opening and closing the water supply pipe 20 and the water discharge pipe 23 to send and discharge the wash water are preferably opened before the gate valve body 7 completely closes the flow path 5. The valve is controlled to be closed and then closed completely. In addition, water for washing water and soil,
The diameters of the water supply pipe 20 and the drain pipe 21 are continuously and gradually increased so that sand and dust can be easily discharged, and the upper sides of both pipes 20 and 21 are horizontal and the lower side is down. The structure may have a gradient.

【0014】仕切弁体7は、流路5を完全に閉じたり開
放するばかりでなく、流体物の流量を調整するために、
半開きなど全開しない状態で使用される場合がある。こ
のような使用状態にあつては、流体物が激しくぶつかつ
て仕切弁体7をがたつかせる。このがたつきを防止する
ために、弁体ぶれ止め機構P1が設けられる。
The sluice valve body 7 not only completely closes and opens the flow path 5, but also adjusts the flow rate of the fluid.
It may be used without being fully opened, such as half-open. In such a usage state, the fluid valve violently hits and the gate valve body 7 rattles once. In order to prevent this rattling, a valve body shake prevention mechanism P1 is provided.

【0015】以下、この弁体ぶれ止め機構P1について
詳述すると、この弁体ぶれ止め機構P1は、図1乃至図
3に示されるように、弁箱2の上部壁側に取り外し自在
に設けられているとともに、圧油管Oが共通配管された
油圧シリンダ31と、弁本体1の内外に通じる貫通孔3
2を備えた、取付手段としてのシリンダ取付部材35と
を備えている。また、このシリンダ取付部材35の貫通
孔32内には、ピストンロツド33及びこのロツド33
の先端部に取り付けられた押さえ部材34が収納されて
おり、弁体ぶれ止め機構P1は、この押さえ部材34を
弁本体1内にある仕切弁体7側に伸ばせれるようになつ
ている。
The valve body anti-shake mechanism P1 will be described in detail below. The valve element anti-shake mechanism P1 is detachably provided on the upper wall side of the valve box 2 as shown in FIGS. In addition, the hydraulic cylinder 31 in which the pressure oil pipe O is commonly used, and the through hole 3 communicating with the inside and outside of the valve body 1
2 and a cylinder mounting member 35 as a mounting means. Further, in the through hole 32 of the cylinder mounting member 35, the piston rod 33 and the rod 33
The holding member 34 attached to the tip end of the valve body is housed, and the valve body anti-shake mechanism P1 is adapted to extend the holding member 34 to the side of the gate valve body 7 in the valve body 1.

【0016】シリンダ取付部材35は、図3に明示する
ように、その入口側に前記貫通孔32と連通する螺口3
6を備える筒状のものであつて、その外周部に形成され
たフランジ37を介して、ボルトBにより弁本体1に固
定されている。そして、シリンダ取付部材35の螺口3
6には、前記油圧シリンダ31の本体先端部が螺着され
ており、前記ピストンロツド33が縮んだ際には、押さ
え部材34が貫通孔32内に収納されるようになつてい
る。
As shown in FIG. 3, the cylinder mounting member 35 has a screw port 3 which communicates with the through hole 32 on the inlet side thereof.
The tubular body 6 is fixed to the valve body 1 by a bolt B via a flange 37 formed on the outer peripheral portion thereof. Then, the screw hole 3 of the cylinder mounting member 35
6, the front end portion of the main body of the hydraulic cylinder 31 is screwed, and when the piston rod 33 is contracted, the pressing member 34 is housed in the through hole 32.

【0017】また、シリンダ取付部材35の仕切弁体7
側には、前記貫通孔32を任意に開閉することのでき
る、シヤツター部材としてのシヤツタープレート39が
取り付けられている。そして、シヤツター機構Sは、こ
のシヤツタープレート39を回動させて貫通孔32を閉
じることにより、流体物が弁箱2外へ流出することを防
止し、更に、その流体物の流出をより確実に防止するた
め、シリンダ取付手段35の貫通孔32の前端周囲に
は、円環状のパツキンPが取り付けられている。
Further, the gate valve body 7 of the cylinder mounting member 35
A shutter plate 39 as a shutter member, which can open and close the through hole 32 arbitrarily, is attached to the side. Then, the shutter mechanism S rotates the shutter plate 39 to close the through hole 32, thereby preventing the fluid from flowing out of the valve box 2 and, further, ensuring the outflow of the fluid. To prevent this, an annular packing P is attached around the front end of the through hole 32 of the cylinder attachment means 35.

【0018】このシヤツタープレート39の下方側に
は、図3乃至図7に明示されるように、前進移動する押
さえ部材34を通すことのできる通孔40が偏心位置す
るように形成される一方、シヤツタープレート39の上
方側には、貫通孔43が設けられている。この貫通孔4
3内には、軸41が挿通され、更に、貫通孔43と連通
するようにフランジ37に設けられた貫通孔37a内に
も、軸41が挿通されている。この軸41の長手方向の
中央部41aは、小径部分となつて図3紙面手前側より
供給されるグリースを溜めることができ、また、貫通孔
43のシヤツタープレート39側には、円環状のオイル
シール43aを2個並べて嵌め込めるとともに、貫通孔
37aのナットN(後述)側にも円環状のオイルシール
37bを2個並べてそれぞれ嵌め込めるようになつてい
るため、軸41は、サビ等を生じない。そして、軸41
とシヤツタープレート39との関係は、軸41の回転に
連動してシヤツタープレート39も回動するように連結
されている一方、シヤツタープレート39は、軸41の
軸心方向に沿つて微小距離D(後述)だけ相対移動可能
となつている(図3参照)。また、軸41の仕切弁体7
側の端部には、シヤツタープレート39を介して、角頭
からなる止め部44が軸41と一体的に回動するように
設けられている。そして、この止め部44に対応位置す
るように、バネ装置Bがシヤツタープレート39に固設
されており、前記止め部44は、そのバネ装置B内へと
進入し、押さえバネ45に当接している。押さえバネ4
5は、シヤツタープレート39をシリンダ取付部材35
へ付勢するためのバネであつて、この押さえバネ45の
付勢力及び弁箱2内の流体物の圧力により、シヤツター
プレート39とシリンダ取付部材35とは互いに密接す
るようになつている(図4参照)。
On the lower side of the shutter plate 39, as clearly shown in FIGS. 3 to 7, a through hole 40 through which the forward-moving pressing member 34 can be inserted is formed at an eccentric position. A through hole 43 is provided on the upper side of the shutter plate 39. This through hole 4
The shaft 41 is inserted into the inside of the shaft 3, and the shaft 41 is also inserted into the through hole 37 a provided in the flange 37 so as to communicate with the through hole 43. The central portion 41a in the longitudinal direction of the shaft 41 can form a small-diameter portion to store grease supplied from the front side of the drawing sheet of FIG. 3, and the through hole 43 has an annular shape on the side of the shutter plate 39. Two oil seals 43a can be fitted side by side, and two annular oil seals 37b can also be fitted side by side on the nut N (described later) side of the through hole 37a. Does not happen. And the shaft 41
The relationship between the shutter plate 39 and the shutter plate 39 is linked so that the shutter plate 39 also rotates in conjunction with the rotation of the shaft 41, while the shutter plate 39 is minute along the axial direction of the shaft 41. Only the distance D (described later) can be relatively moved (see FIG. 3). In addition, the gate valve 7 of the shaft 41
At the end on the side, a stopper portion 44 formed of a square head is provided so as to rotate integrally with the shaft 41 via the shutter plate 39. Then, the spring device B is fixed to the shutter plate 39 so as to be positioned corresponding to the stopper portion 44, and the stopper portion 44 enters into the spring device B and abuts on the pressing spring 45. ing. Presser spring 4
5 is a cylinder mounting member 35 for the shutter plate 39.
The biasing force of the pressing spring 45 and the pressure of the fluid in the valve box 2 causes the shutter plate 39 and the cylinder mounting member 35 to come into close contact with each other ( (See FIG. 4).

【0019】従つて、この止め部44とバネ装置Bとが
嵌合することにより、止め部44の回動とシヤツタープ
レート39の回動とが連動するとともに、軸41が軸心
方向に移動しても、止め部44により軸41は貫通孔4
3から抜けない。もつとも、止め部44及びバネ装置B
の形状等は、この形状等に限定されず、その他種々の形
状等に変更しても良く、更に、上述した軸41とシヤツ
タープレート39との関係を満たせば、その他どの様に
変更しても構わない。また、この軸41の油圧シリンダ
31側の端部には、接続金具48の一端がナットNの締
付けによつて取り付けられるとともに、この接続金具4
8の他端には、油圧駆動機構としての油圧シリンダー4
6のピストンロツド47が取り付けられている。この油
圧シリンダー46には、圧油管Zが接続されているが、
この圧油管Zは、前記圧油管Oと共通配管されるのが望
ましい。そして、油圧シリンダー46が動作してピスト
ンロツド47を伸縮させることにより、接続金具48が
軸41を貫通孔37a及び貫通孔43内で回動させなが
ら、この軸41を回動中心として所定角度だけシヤツタ
ープレート39を回動させる。すなわち、この油圧シリ
ンダー46が動作してピストンロツド47が伸びた場
合、シヤツター機構Sは、シヤツタープレート39を連
動回転させ、かつ、前記押さえ部材34を通す通孔40
の位置を、貫通孔32と連通するように変位させる。そ
の結果、図5および図6で明示するように、通孔40と
貫通孔32とが連通位置し、貫通孔32は開状態とな
る。
Therefore, by fitting the stopper 44 and the spring device B, the rotation of the stopper 44 and the rotation of the shutter plate 39 are interlocked with each other, and the shaft 41 moves in the axial direction. Even if the shaft 44 is penetrated by the stopper 44,
I can't get out of 3. With the stop 44 and the spring device B
The shape and the like are not limited to this shape and may be changed to other various shapes and the like, and may be changed to any other shape as long as the relationship between the shaft 41 and the shutter plate 39 described above is satisfied. I don't mind. Further, one end of a connecting fitting 48 is attached to the end portion of the shaft 41 on the hydraulic cylinder 31 side by tightening a nut N, and the connecting fitting 4 is attached.
At the other end of 8, there is a hydraulic cylinder 4 as a hydraulic drive mechanism.
A piston rod 47 of No. 6 is attached. A pressure oil pipe Z is connected to the hydraulic cylinder 46,
It is desirable that the pressure oil pipe Z is connected to the pressure oil pipe O in common. Then, the hydraulic cylinder 46 operates to expand / contract the piston rod 47, whereby the connecting fitting 48 rotates the shaft 41 in the through hole 37a and the through hole 43, while the shaft 41 is used as a rotation center for a predetermined angle. The target plate 39 is rotated. That is, when the hydraulic cylinder 46 operates and the piston rod 47 extends, the shutter mechanism S rotates the shutter plate 39 in an interlocking manner and the through hole 40 through which the pressing member 34 is inserted.
Is displaced so as to communicate with the through hole 32. As a result, as clearly shown in FIGS. 5 and 6, the through hole 40 and the through hole 32 are in communication with each other, and the through hole 32 is in an open state.

【0020】また、油圧シリンダー46が動作してピス
トンロツド47が縮んだ場合、シヤツタープレート39
も所要角度だけ連動回転する。すると、通孔40もその
位置が変位して、通孔40と貫通孔32との連通状態が
断たれる。
When the hydraulic cylinder 46 operates and the piston rod 47 contracts, the shutter plate 39
Also rotates in conjunction with the required angle. Then, the position of the through hole 40 is also displaced, and the communication state between the through hole 40 and the through hole 32 is cut off.

【0021】また、シヤツター機構Sは、このシヤツタ
ープレート39を前記シリンダ取付手段35の前端より
離した状態で移動させて貫通孔32を開閉し、シリンダ
取付手段35の前端と密接した状態で貫通孔32をシヤ
ツタープレート39で閉じるように構成されている。す
なわち、シリンダ取付手段35のシヤタープレート39
側には、前記微小距離Dに対応する高さからなる突部4
9が形成され、段部となつている。そして、シヤツター
プレート39が突部49上に位置する場合(図5及び図
6参照)、このシヤツタープレート39は、シリンダ取
付手段35の前端より離れた状態となる一方、シヤツタ
ープレート39が突部49上に位置しない場合(図7及
び図8参照)、シヤツタープレート39は、シリンダ取
付手段35の前端と密着した状態となる。シヤツタープ
レート39がシリンダ取付手段35の前端と密接した状
態で、貫通孔32はシヤツタープレート39によつて完
全に閉状態となり、仮に修理のためにシリンダ31、押
さえ部材34等をシリンダ取付部材35から取り外して
も、流路5を流れる流体物が貫通孔32から弁箱2外へ
と流出するようなおそれはない。
Further, the shutter mechanism S moves the shutter plate 39 away from the front end of the cylinder mounting means 35 to open and close the through hole 32, and penetrates in close contact with the front end of the cylinder mounting means 35. The hole 32 is configured to be closed by a shutter plate 39. That is, the shutter plate 39 of the cylinder mounting means 35
On the side, a protrusion 4 having a height corresponding to the minute distance D is provided.
9 is formed and serves as a step. When the shutter plate 39 is located on the protrusion 49 (see FIGS. 5 and 6), the shutter plate 39 is separated from the front end of the cylinder mounting means 35, while the shutter plate 39 is When not located on the protrusion 49 (see FIGS. 7 and 8), the shutter plate 39 is in close contact with the front end of the cylinder mounting means 35. With the shutter plate 39 in close contact with the front end of the cylinder mounting means 35, the through hole 32 is completely closed by the shutter plate 39, and the cylinder 31, the pressing member 34, etc. are temporarily attached to the cylinder mounting member for repair. Even if it is removed from 35, there is no fear that the fluid flowing in the flow path 5 will flow out from the through hole 32 to the outside of the valve box 2.

【0022】また、突部49は、貫通孔32に向かつて
緩やかな斜面Uを形成しているので、シヤツタープレー
ト39は、バネ45の押圧力に抗して、その緩やかな斜
面Uをのぼるようにして突部49上に位置し、前記シリ
ンダ取付手段35の前端より微小距離Dだけ離れた状態
で移動し、貫通孔32を開く。その際、シヤツタープレ
ート39は、パツキンPと接触しないため、パツキンP
の摩耗が防止される。もつとも、この突部49は、シヤ
ツタープレート39のシリンダ取付手段35側に設けら
れていてもよく、また、必要があれば、シリンダ取付手
段35及びシヤツタープレート39の双方に設けられて
いてもよい。尚、Vは、シヤツタープレート39が、斜
面Uを容易にのぼることができるように、シヤツタープ
レート39のシリンダ取付手段35側の面に形成された
斜面である。
Further, since the projection 49 forms a gentle slope U toward the through hole 32, the shutter plate 39 climbs the gentle slope U against the pressing force of the spring 45. In this way, the through hole 32 is opened by being located on the projection 49 and being moved away from the front end of the cylinder mounting means 35 by a minute distance D. At that time, since the shutter plate 39 does not contact the packing P,
Wear is prevented. In addition, the projection 49 may be provided on the cylinder mounting means 35 side of the shutter plate 39, or, if necessary, on both the cylinder mounting means 35 and the shutter plate 39. Good. V is a slope formed on the surface of the shutter plate 39 on the cylinder mounting means 35 side so that the shutter plate 39 can easily climb the slope U.

【0023】この実施例では、貫通孔32を備えるシリ
ンダ取付手段については、弁箱2とは別体成形の部材3
5によつて形成するとしたが、弁箱2と一体成形するよ
うにしても良く、また、仕切弁体7を複数個の押さえ部
材34によつて押圧する構成としたが、仕切弁体7が軽
量のものについては、1つの押さえ部材34によつて押
圧してもよい。
In this embodiment, the cylinder mounting means having the through hole 32 is molded separately from the valve box 2 as a member 3.
Although it has been described that the valve body 7 is formed by means of 5, the valve body 2 may be integrally formed, and the sluice valve body 7 is pressed by a plurality of pressing members 34. For a light weight, one pressing member 34 may be used for pressing.

【0024】次に、このような構成からなる仕切弁の使
用法について説明すると、仕切弁体7が完全に閉じる
前、例えば八部通り閉じたところで、送水弁18および
排水弁21を開弁して洗いだし水を凹溝13内へと送り
込む。洗いだし水は、凹溝13内に溜まつている土、
砂、ゴミなどを洗い流し、排水管23を介して弁箱2外
へと排出する。この場合、洗いだし水の水圧は、流路5
内の流体物の圧力より高いため、土、砂、ゴミなどが仕
切弁体7から遠ざかつている間に仕切弁体7を閉じるこ
とができる。また、仕切弁体7が完全に閉じる前に洗い
だし水を送水することにより、仕切弁体7が閉じる際に
弁座10, 11との間に挟まり込むようなゴミなども取
り除くことができる。仕切弁体7が完全に閉じて暫くし
たところで、送水弁18および排水弁21を閉弁して、
洗いだし水の送水を遮断する。もちろん、場合によつて
は仕切弁体7が完全に閉じたところで、洗いだし水を凹
溝13へと送水するようにしても良い。
Next, the method of using the sluice valve having such a structure will be explained. Before the sluice valve body 7 is completely closed, for example, when the sluice valve is closed, the water supply valve 18 and the drain valve 21 are opened. Then, wash water is sent into the groove 13. The washing water is the soil accumulated in the groove 13,
The sand, dust, etc. are washed away and discharged to the outside of the valve box 2 through the drain pipe 23. In this case, the water pressure of the washing water is
Since the pressure is higher than the pressure of the fluid inside, the sluice valve body 7 can be closed while soil, sand, dust, etc. are kept away from the sluice valve body 7. In addition, by sending out washing water before the gate valve body 7 is completely closed, it is possible to remove dust and the like that are caught between the valve seats 10 and 11 when the gate valve body 7 is closed. A short time after the gate valve body 7 was completely closed, the water supply valve 18 and the drain valve 21 were closed,
Shut off the wash water supply. Of course, in some cases, the flush water may be sent to the concave groove 13 when the gate valve body 7 is completely closed.

【0025】そして、仕切弁体7を半開き状態にして流
量の調整を行うような場合にあつては、油圧シリンダー
46を作動させ、ピストンロツド47が伸びることによ
り、接続金具48を介して軸41を回動させながら、所
定角度だけシヤツタープレート39を回動させるので、
シヤツタープレート39がシリンダ取付手段35の前端
より離れた状態で通孔40と貫通孔32とが連通位置
し、貫通孔32は開状態となる。通孔40と貫通孔32
とが連通位置した状態で、押さえ部材用の油圧シリンダ
31を作動させると、そのピストンロツド33が伸び、
押さえ部材34が仕切弁体7方向に進むとともに、その
仕切弁体7が一方の弁座11に密着するようにその一側
面部を押圧し、前記弁座11との間でその仕切弁体7を
挟持固定する。よつて、たとえ流体物が激しくぶつかる
ようなことがあつても仕切弁体7のがたつきはなく、仕
切弁体7自身あるいは弁座10, 11を傷めるようなこ
とがなくなる。仕切弁体7をこのような半開き状態から
全開あるいは完全に閉じる状態に移行させる際には、仕
切弁体7を上下させる前に油圧シリンダ31の作動を停
止させ、押さえ部材34を図2の実線で示すような元の
状態に復帰させて、仕切弁体7の押圧を解除する。
In the case of adjusting the flow rate by opening the sluice valve body 7 in the half-opened state, the hydraulic cylinder 46 is operated and the piston rod 47 extends, so that the shaft 41 is moved through the connecting fitting 48. Since the shutter plate 39 is rotated by a predetermined angle while rotating,
With the shutter plate 39 separated from the front end of the cylinder mounting means 35, the through hole 40 and the through hole 32 communicate with each other, and the through hole 32 is opened. Through hole 40 and through hole 32
When the hydraulic cylinder 31 for the pressing member is operated in a state where the and are in communication with each other, the piston rod 33 of the cylinder extends,
As the pressing member 34 advances in the direction of the sluice valve body 7, the sluice valve body 7 presses one side surface portion of the sluice valve body 7 so that the sluice valve body 7 is in close contact with one of the valve seats 11, and the sluice valve body 7 with the valve seat 11. Pinch and fix. Therefore, even if a fluid object collides violently, the sluice valve body 7 does not rattle, and the sluice valve body 7 itself or the valve seats 10 and 11 are not damaged. When shifting the sluice valve body 7 from such a half-open state to a fully open or completely closed state, the operation of the hydraulic cylinder 31 is stopped before the sluice valve body 7 is moved up and down, and the pressing member 34 is moved to the solid line in FIG. The original state as shown by is restored and the pressing of the gate valve body 7 is released.

【0026】その後、再び油圧シリンダー46を作動さ
せて、ピストンロツド47が縮むと、シヤツタープレー
ト39も所要角度だけ連動回転し、通孔40と貫通孔3
2との連通状態が断たれ、シヤツタープレート39が突
部49上に位置しなくなる。そして、シヤツタープレー
ト39がシリンダ取付手段35の前端と密接した状態で
貫通孔32はシヤツタープレート39によつて完全に閉
状態となる。閉状態となれば、流体物が弁箱2外に流出
することもなくなるため、流体物が弁箱2内を流れるま
まの状態で、弁体ぶれ止め機構P1を修理することも可
能となる。
After that, when the hydraulic cylinder 46 is operated again and the piston rod 47 contracts, the shutter plate 39 also rotates by the required angle, and the through hole 40 and the through hole 3
The communication state with 2 is cut off, and the shutter plate 39 is no longer positioned on the protrusion 49. The through hole 32 is completely closed by the shutter plate 39 in a state where the shutter plate 39 is in close contact with the front end of the cylinder mounting means 35. In the closed state, the fluid substance does not flow out of the valve box 2, so that it is possible to repair the valve body anti-slipping mechanism P1 while the fluid substance is still flowing in the valve box 2.

【0027】次に、この発明の第2実施例を図9及び図
10に基づいて説明する。尚、第1実施例に開示の部材
と同一の役割を果たす部材には、同一の符号が付されて
いる。
Next, a second embodiment of the present invention will be described with reference to FIGS. 9 and 10. The same reference numerals are given to the members that play the same role as the members disclosed in the first embodiment.

【0028】この仕切弁の弁箱2は、流路5の入口側の
外周上部に複数の凹部50を備えており、これら凹部5
0には、前記第1実施例に示される弁体ぶれ止め機構P
1とほぼ同様の働きをするように駆動制御される、弁体
ぶれ止め機構P1が配備される。もつとも、この第2実
施例においては、弁箱2は、流路5の入口側の外周上部
に、弁体ぶれ止め機構P1を収納する複数の凹部50を
備える構造としたが、このような構造とすると、流路5
の入口側断面形状が異形となるため、流体物が流路5内
を円滑に流れない虞れも考えられる。このため、第1実
施例のように、流路5の入口側断面形状は円形状であつ
て、その外周上部に、前記弁体ぶれ止め機構P1を複数
個配備することが望ましい。
The valve box 2 of this sluice valve is provided with a plurality of recesses 50 on the outer periphery on the inlet side of the flow path 5, and these recesses 5 are provided.
0 is the valve body shake prevention mechanism P shown in the first embodiment.
A valve body shake prevention mechanism P1 that is drive-controlled to have a function substantially similar to that of 1 is provided. In addition, in the second embodiment, the valve box 2 has a structure in which a plurality of recesses 50 for accommodating the valve body anti-vibration mechanism P1 are provided in the upper peripheral portion on the inlet side of the flow path 5, but such a structure is adopted. Then, the flow path 5
Since the cross-sectional shape of the inlet side is irregular, there is a possibility that the fluid may not smoothly flow in the flow path 5. For this reason, as in the first embodiment, it is desirable that the cross-sectional shape of the flow path 5 on the inlet side is circular and that a plurality of the valve body anti-slipping mechanisms P1 are provided on the upper outer periphery thereof.

【0029】また、仕切弁体7を弁箱2内で上下動させ
る駆動装置及びその周囲の機構を次のように構成しても
よい。即ち、図11に示される実施例において、仕切弁
体7に連結された弁軸6は、弁収容室3の上部を貫通す
るとともに、弁収容室3を覆う弁蓋4内にも延びてお
り、弁蓋4の上部内に設けられた、電気駆動装置のモー
タMの駆動及び手動回転用のハンドルHの回動を、ウオ
ームギヤ等からなる伝達機構(図示せず)を介して受け
て、回動するようになつている。そして、弁軸6の回動
に伴つて、弁軸6が弁収容室3内及び弁蓋4内で上下動
し、それにより、仕切弁体7も弁収容室3内で上下動す
る。
Further, the drive device for moving the gate valve body 7 up and down in the valve box 2 and the mechanism around it may be constructed as follows. That is, in the embodiment shown in FIG. 11, the valve shaft 6 connected to the gate valve body 7 penetrates the upper part of the valve accommodating chamber 3 and also extends into the valve lid 4 covering the valve accommodating chamber 3. The rotation of the handle H for driving the motor M of the electric drive device and for manually rotating the handle M provided in the upper portion of the valve lid 4 is received via a transmission mechanism (not shown) including a worm gear and the like. It is moving. As the valve shaft 6 rotates, the valve shaft 6 moves up and down in the valve accommodating chamber 3 and the valve lid 4, so that the gate valve body 7 also moves up and down in the valve accommodating chamber 3.

【0030】そして、弁蓋4内には、弁軸6の上方側外
周囲に形成されたオネジ部と歯合するメネジ部を内周面
の一部に備えるメネジ筒55が備えられている。このメ
ネジ筒55には、弁軸6の外周にグリースを供給するた
めの、孔55aが穿設されており、この孔55aには、
グリース供給用パイプ56の一端が連結され、また、そ
のパイプ56の他端は、例えば、弁本体1の近傍もしく
は弁本体1自体に付設された、グリース供給機構57に
連結されている。それにより、弁軸6が弁収容室3内及
び弁蓋4内で上下動する際に、グリース供給機構57に
設けられたポンプ(図示せず)が連動的に作動し、グリ
ースをパイプ56及び孔55aを介して弁軸6の周囲に
吐出し、弁軸6の外周のネジ等の摩耗を防止する。
Inside the valve lid 4, there is provided a female screw cylinder 55 having a female screw portion, which meshes with a male screw portion formed on the outer periphery of the upper side of the valve shaft 6, in a part of the inner peripheral surface. The female screw cylinder 55 is provided with a hole 55a for supplying grease to the outer circumference of the valve shaft 6, and the hole 55a has a hole 55a.
One end of the grease supply pipe 56 is connected, and the other end of the pipe 56 is connected to, for example, a grease supply mechanism 57 attached near the valve body 1 or attached to the valve body 1 itself. As a result, when the valve shaft 6 moves up and down in the valve housing chamber 3 and the valve lid 4, a pump (not shown) provided in the grease supply mechanism 57 interlocks with the pipe 56 and the grease. It is discharged to the periphery of the valve shaft 6 through the hole 55a, and wear of the screw or the like on the outer periphery of the valve shaft 6 is prevented.

【0031】また、弁蓋4の下部には、弁軸6に沿つて
流体物が弁蓋4内へ入ることを防止するため、例えば石
綿からなるパッキン59が弁軸6の外周を包むように取
り付けられている。このパッキン59は、その側部を囲
うパッキン支持部61内に収納されるとともに、ボルト
59a及びネジ穴61a等を介して、上部側よりパッキ
ン押さえ60によつて固定されている。また、パッキン
59の下部には、図12に示されるような、例えば、硬
質ゴム等からなるパッキンシート62が取り付けられて
いる。このパッキンシート62は、弁軸6を通す中央孔
62aと、この中央孔62aより円周方向に延びる複数
の切り込み62bとを備えており、弁軸6が中央孔62
a内を通つた状態で、パッキンシート62は、パッキン
支持部61の下部内側を座グリ加工して形成した溝61
b内に嵌め込まれている。そして、溝61bは、下向き
のテーパ面を備えているため、パッキンシート62が溝
61a内に嵌め込まれてこのテーパ面に沿う場合、各切
り込み62bが開いた状態となる。そのため、パッキン
シート62の中央孔62aの円周部は、弁軸6が回転し
ても摩耗が少ない。
Further, a packing 59 made of, for example, asbestos, is attached to the lower portion of the valve cover 4 so as to wrap the outer periphery of the valve shaft 6 in order to prevent the fluid from entering the valve cover 4 along the valve shaft 6. Has been. The packing 59 is housed in a packing support portion 61 that surrounds the side portion of the packing 59, and is fixed by a packing retainer 60 from the upper side via bolts 59a and screw holes 61a. A packing sheet 62 made of, for example, hard rubber is attached to the lower portion of the packing 59, as shown in FIG. The packing seat 62 includes a central hole 62a through which the valve shaft 6 passes, and a plurality of notches 62b extending from the central hole 62a in the circumferential direction.
The packing sheet 62 is a groove 61 formed by counterboring the inside of the lower portion of the packing support portion 61 while passing through the inside of a.
It is fitted in b. Since the groove 61b has a downward tapered surface, when the packing sheet 62 is fitted into the groove 61a and follows this tapered surface, each notch 62b is in an open state. Therefore, the circumferential portion of the central hole 62a of the packing sheet 62 is less worn even when the valve shaft 6 rotates.

【0032】それにより、パッキンシート62の上部に
あるパッキン59を取り替える場合、このパッキンシー
ト62に、流体物によつて上方向への圧力が加わるが、
この圧力によつて、パッキンシート62は、反り返るよ
うにしてテーパ面から上方側へ離れるが、パッキンシー
ト62の周縁部は、溝61bに引つ掛かるため、溝61
bより外れない。そして、パッキンシート62の複数の
切り込み62bが閉じるように変形するため、パッキン
シート62の中央孔62aの円周部が弁軸6の周囲に密
接する。その結果、流体物が弁軸6に沿つて大量に上昇
することもないので、弁箱2内の流路5に流体物が流れ
ている状態で、パッキン59を取り替えることが可能と
なる。
As a result, when the packing 59 on the top of the packing sheet 62 is replaced, upward pressure is applied to the packing sheet 62 by the fluid,
Due to this pressure, the packing sheet 62 separates from the taper surface to the upper side so as to warp, but the peripheral edge of the packing sheet 62 is caught in the groove 61b, so that the groove 61
It does not come off from b. Then, since the plurality of cuts 62b of the packing sheet 62 are deformed so as to be closed, the circumferential portion of the central hole 62a of the packing sheet 62 comes into close contact with the periphery of the valve shaft 6. As a result, a large amount of fluid does not rise along the valve shaft 6, so that the packing 59 can be replaced while the fluid is flowing through the flow path 5 in the valve box 2.

【0033】以上、図示した実施例では、弁軸6を上下
動させることにより、仕切弁体7を上下動させるいわゆ
る外ネジ方式の仕切弁について説明したが、必ずしもこ
の方式の仕切弁に限られず、仕切弁体7の上部にメネジ
を螺設するとともに、弁軸6の下端外周に前記メネジに
螺合するオネジを螺設して、弁軸6の回転により、仕切
弁体7のみを上下動させるいわゆる内ネジ方式の仕切弁
に本発明を実施してもよい。
In the embodiment shown in the above, the so-called external screw type sluice valve in which the sluice valve body 7 is moved up and down by moving the valve shaft 6 up and down has been described, but the sluice valve of this type is not always necessary. , A female screw is screwed on the upper portion of the sluice valve body 7, and a male screw is screwed on the outer periphery of the lower end of the valve shaft 6 so that the sluice valve body 7 is moved up and down by the rotation of the valve shaft 6. The present invention may be applied to a so-called internal screw type sluice valve.

【0034】なお、この発明は、既述した実施例の構成
に限定されるものでなく、例えば、仕切弁体7、弁体ぶ
れ止め機構P1、シヤツター機構S、そのシヤツター機
構Sのシヤツター部材を取付手段の前端より離した状態
で移動させるための機構の具体的構造を変更できる。ま
た、仕切弁体7の表面は、必ずしも平坦ではないため、
押さえ部材の34の先端が、その仕切弁体7の表面に対
して垂直に対向するような構造にするのが望ましく、例
えば、図13に示されるように、押さえ部材34の先端
に球面凹部Nを設けるとともに、この凹部Nに、その球
面に沿つて摺動自在な半球体34aをカシメ等により取
り付け、この半球体34aが仕切弁体7の表面に沿うよ
う摺動させるようにしても良い。さらには、シヤツター
プレート39が、取付部材35を挿通する軸41を介し
て、手動の外部操作ハンドルに連結されるような構造に
変更するなど、この発明の趣旨を逸脱しない範囲で各部
の構成を任意に変更することができる。
The present invention is not limited to the configuration of the above-described embodiment, and includes, for example, the sluice valve element 7, the valve element anti-vibration mechanism P1, the shutter mechanism S, and the shutter member of the shutter mechanism S. The specific structure of the mechanism for moving the attachment means apart from the front end can be changed. Further, since the surface of the gate valve body 7 is not always flat,
It is desirable to have a structure in which the tip of the pressing member 34 vertically opposes the surface of the gate valve body 7. For example, as shown in FIG. It is also possible to provide a hemisphere 34a that is slidable along its spherical surface in the recess N by caulking or the like, and slide the hemisphere 34a along the surface of the gate valve body 7. Furthermore, the shutter plate 39 is modified to have a structure in which it is connected to a manual external operation handle via a shaft 41 through which the mounting member 35 is inserted. Can be changed arbitrarily.

【発明の効果】以上、詳述したところから明らかなよう
に、この発明にかかる仕切弁によれば、次のような効果
を奏する。
As is clear from the above description, the sluice valve according to the present invention has the following effects.

【0035】請求項1に記載された仕切弁によれば、シ
ヤツター機構は、そのシヤツター部材を前記取付手段の
前端より離した状態で移動させて貫通孔を開閉し、その
シヤツター部材を前記取付手段の前端と密接させた状態
で貫通孔を閉じる。よつて、取付手段の貫通孔の周囲に
取り付けられたパツキン等の摩耗を防ぐことができると
ともに、長年使用してもシヤツター機構が充分に機能
し、もつて流体物が弁箱外に流出することを未然に防止
できる。
According to the sluice valve of the first aspect, the shutter mechanism moves the shutter member away from the front end of the attaching means to open and close the through hole, and the shutter member is attached to the attaching means. Close the through hole in close contact with the front end of. Therefore, it is possible to prevent wear of the packing or the like mounted around the through hole of the mounting means, and even if it is used for many years, the shutter mechanism functions sufficiently so that the fluid substance flows out of the valve box. Can be prevented.

【0036】請求項2に記載された仕切弁によれば、前
記弁体ぶれ止め機構は、弁箱の内外に通じる貫通孔を備
えた取り付け手段を介して、弁箱に取り外し自在に設け
るので、弁体ぶれ止め機構を修理などのため弁箱より取
り外す際には、シヤツター機構のシヤツター部材により
前記貫通孔を閉じさえしておけば、流体物が弁箱外に流
出するのを防ぐことができる。このため、あえて仕切弁
の上流側をせき止めるような面倒な作業をすることもな
く、即ち、流体物が弁箱内を流れるままの状態で弁体ぶ
れ止め機構の修理などを行うことができる。
According to the sluice valve described in claim 2, since the valve body anti-sway mechanism is detachably provided in the valve box through the mounting means having the through hole communicating with the inside and outside of the valve box, When removing the valve body anti-sway mechanism from the valve box for repair or the like, it is possible to prevent the fluid from flowing out of the valve box by closing the through hole with the shutter member of the shutter mechanism. . Therefore, it is possible to repair the valve body anti-slipping mechanism and the like without carrying out the troublesome work of damming the upstream side of the sluice valve, that is, in a state where the fluid is still flowing in the valve box.

【0037】請求項3に記載された仕切弁によれば、前
記シヤツター機構が、油圧駆動機構を備え、この油圧駆
動機構により、前記シヤツター部材を移動させることに
より、シヤツター部材は、人手により移動させる場合に
比べて、極めて容易にかつ円滑に移動される。
According to the sluice valve described in claim 3, the shutter mechanism is provided with a hydraulic drive mechanism, and the shutter member is moved by the hydraulic drive mechanism to manually move the shutter member. Compared to the case, the movement is extremely easy and smooth.

【0038】請求項4に記載された仕切弁によれば、前
記流路の断面形状が、ほぼ円形状であつて異形とならな
いため、流路の側面に弁体ぶれ止め機構を配備するため
複数の凹部をその側面に備える構造と比べて、流体物が
流路内を円滑に流れる。
According to the sluice valve according to the fourth aspect, since the cross-sectional shape of the flow passage is substantially circular and does not become irregular, a plurality of valve body anti-shake mechanisms are provided on the side surface of the flow passage. As compared with the structure in which the concave portion is provided on the side surface, the fluid substance smoothly flows in the flow path.

【0039】請求項5に記載された仕切弁によれば、前
記シヤツター部材が、前記取付手段の前端より離れた状
態で移動して貫通孔を開閉できるように、このシヤツタ
ー部材もしくは前記貫通孔を備えた取付手段の少なくと
もいずれか一方に段部が設けられていることにより、極
めて簡単な構造で取付手段の貫通孔の周囲に取り付けら
れたパツキン等の摩耗が防止できる。
According to the sluice valve described in claim 5, the shutter member or the through hole is opened so that the shutter member can be moved away from the front end of the mounting means to open and close the through hole. By providing the step portion on at least one of the mounting means provided, it is possible to prevent wear of the packing or the like mounted around the through hole of the mounting means with an extremely simple structure.

【0040】請求項6に記載された仕切弁によれば、仕
切弁体には、この仕切弁体を昇降させるための弁軸が連
結され、この弁軸の外周にグリースを供給するためのグ
リース供給機構が設けられているので、グリースが弁軸
の周囲に吹き付けられ、弁軸外周のネジ等が摩耗するの
を防止する。
According to the sluice valve described in claim 6, a valve shaft for raising and lowering the sluice valve body is connected to the sluice valve body, and grease for supplying grease to the outer periphery of the valve shaft is provided. Since the supply mechanism is provided, grease is prevented from being sprayed around the valve shaft and wear of the screw or the like on the outer periphery of the valve shaft is prevented.

【図面の簡単な説明】[Brief description of drawings]

【図1】この発明に係る第1実施例の仕切弁において、
その仕切弁体が開いた状態の正面図である。
FIG. 1 is a sluice valve according to a first embodiment of the present invention,
It is a front view in the state where the gate valve body was opened.

【図2】前記第1実施例の仕切弁において、その仕切弁
体が閉じた状態の縦断側面図である。
FIG. 2 is a vertical cross-sectional side view of the sluice valve of the first embodiment with its sluice valve body closed.

【図3】前記第1実施例の仕切弁に設けた弁体ぶれ止め
機構において、半開きなど全開しない状態にある仕切弁
体を押圧する押さえ部材の動きもあわせて説明する、同
機構の拡大断面図である。
FIG. 3 is an enlarged cross-sectional view of the valve body anti-sway mechanism provided in the sluice valve of the first embodiment, which also illustrates the movement of a pressing member that presses the sluice valve body that is not fully opened, such as half-opened. It is a figure.

【図4】おなじく弁体ぶれ止め機構の取付手段の貫通孔
が閉じられた状態を示す図である。
FIG. 4 is a view showing a state in which the through hole of the attachment means of the valve body blurring prevention mechanism, which is similar, is closed.

【図5】前記第1実施例の仕切弁に設けたシヤツター部
材により、取付手段の貫通孔を開放している状態を示す
図である。
FIG. 5 is a view showing a state in which a through hole of an attachment means is opened by a shutter member provided in the sluice valve of the first embodiment.

【図6】図5において矢視Y1からみた図である。6 is a diagram viewed from the arrow Y1 in FIG.

【図7】前記第1実施例の仕切弁に設けたシヤツター部
材により、取付手段の貫通孔を閉じている状態を示す図
である。
FIG. 7 is a view showing a state in which a through-hole of an attachment means is closed by a shutter member provided in the sluice valve of the first embodiment.

【図8】図7において矢視Y2からみた図である。8 is a diagram viewed from the arrow Y2 in FIG. 7.

【図9】この発明に係る第2実施例の仕切弁において、
その仕切弁体が開いた状態の正面図である。
FIG. 9 is a sluice valve according to a second embodiment of the present invention,
It is a front view in the state where the gate valve body was opened.

【図10】前記第2実施例の仕切弁に設けたシヤツター
機構につき、その仕切弁体が閉じた状態の縦断側面図で
ある。
FIG. 10 is a vertical cross-sectional side view of the shutter mechanism provided in the sluice valve of the second embodiment with the sluice valve body closed.

【図11】仕切弁を弁箱内で移動させる駆動装置及びそ
の周囲の機構を示す一部破断正面図である。
FIG. 11 is a partially cutaway front view showing a drive device for moving the gate valve in the valve box and a mechanism around the drive device.

【図12】弁蓋内に取り付けられるパッキンシートを示
す正面図である。
FIG. 12 is a front view showing a packing sheet mounted in the valve lid.

【図13】押さえ部材の他の構造例を示す断面図であ
る。
FIG. 13 is a cross-sectional view showing another structural example of the pressing member.

【符号の説明】[Explanation of symbols]

2 弁箱 5 流路 7 仕切
弁体 11 一方の弁座 32 貫通孔 34 押
さえ部材 35 シリンダ取付部材(取付手段) S シ
ヤツター機構 46 油圧シリンダー(油圧駆動機構) 49 突
部(段部) 39 シヤツタープレート(シヤツター部材) P1
弁体ぶれ止め機構 57 グリース供給機構
2 Valve box 5 Flow path 7 Gate valve body 11 One valve seat 32 Through hole 34 Holding member 35 Cylinder mounting member (mounting means) S Shatter mechanism 46 Hydraulic cylinder (hydraulic drive mechanism) 49 Projection part (step part) 39 Shatter Plate (shutter member) P1
Valve body shake prevention mechanism 57 Grease supply mechanism

Claims (6)

【特許請求の範囲】[Claims] 【請求項1】 弁箱の流路に対してほぼ直交方向に昇降
してその流路を開閉する仕切弁体と、 この仕切弁体が半開きなど全開しない状態で、その仕切
弁体を前記弁箱に設けられた一方の弁座に密着するよう
に押圧固定する押さえ部材を有する弁体ぶれ止め機構と
を備える仕切弁において、 前記弁体ぶれ止め機構は、前記仕切弁の内外に通じる貫
通孔を備えた取付手段を介して、前記弁箱に設けられ、
かつその取付手段の貫通孔を開閉するシヤツター部材を
有するシヤツター機構は、そのシヤツター部材を前記取
付手段の前端より離した状態で移動させて貫通孔を開閉
し、そのシヤツター部材を前記取付手段の前端と密接さ
せた状態で貫通孔を閉じるように構成されていることを
特徴とする仕切弁。
1. A sluice valve body which moves up and down in a direction substantially orthogonal to a flow path of a valve box to open and close the flow path, and the sluice valve body which is not fully opened such as half-opened, In a sluice valve having a valve body anti-shake mechanism having a pressing member that presses and fixes one valve seat provided in the box, the valve element anti-shake mechanism has a through hole communicating with the inside and outside of the sluice valve. Provided on the valve box via an attaching means including
And a shutter mechanism having a shutter member for opening and closing the through hole of the mounting means, the shutter member is moved away from the front end of the mounting means to open and close the through hole, and the shutter member is moved to the front end of the mounting means. A sluice valve configured to close the through hole in a state of being in close contact with the sluice valve.
【請求項2】 前記弁体ぶれ止め機構は、前記取付手段
を介して、弁箱に取り外し自在に設けられていることを
特徴とする請求項1に記載の仕切弁。
2. The sluice valve according to claim 1, wherein the valve body anti-shake mechanism is detachably provided in the valve box via the mounting means.
【請求項3】 前記シヤツター機構が、油圧駆動機構を
備え、この油圧駆動機構により、前記シヤツター部材を
移動させることを特徴とする請求項1または2に記載の
仕切弁。
3. The sluice valve according to claim 1, wherein the shutter mechanism includes a hydraulic drive mechanism, and the hydraulic drive mechanism moves the shutter member.
【請求項4】 前記流路の断面形状が、ほぼ円形状であ
ることを特徴とする請求項1乃至3のいずれかに記載の
仕切弁。
4. The sluice valve according to claim 1, wherein the flow passage has a substantially circular cross-sectional shape.
【請求項5】 前記シヤツター部材が、前記取付手段の
前端より離れた状態で移動して貫通孔を開閉できるよう
に、このシヤツター部材もしくは前記貫通孔を備えた取
付手段の少なくともいずれか一方に段部が設けられてい
ることを特徴とする請求項1乃至4のいずれかに記載の
仕切弁。
5. A step is provided on at least one of the shutter member and the attachment means having the through hole so that the shutter member can move in a state of being separated from the front end of the attachment means to open and close the through hole. The sluice valve according to any one of claims 1 to 4, wherein a part is provided.
【請求項6】 前記仕切弁体には、この仕切弁体を昇降
させるための弁軸が連結され、この弁軸の外周にグリー
スを供給するためのグリース供給機構が設けられている
ことを特徴とする請求項1乃至5のいずれかに記載の仕
切弁。
6. A valve shaft for raising and lowering the sluice valve body is connected to the sluice valve body, and a grease supply mechanism for supplying grease to the outer circumference of the valve shaft is provided. The gate valve according to any one of claims 1 to 5.
JP5110067A 1993-04-12 1993-04-12 Gate valve Expired - Lifetime JP3065196B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5110067A JP3065196B2 (en) 1993-04-12 1993-04-12 Gate valve

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5110067A JP3065196B2 (en) 1993-04-12 1993-04-12 Gate valve

Publications (2)

Publication Number Publication Date
JPH06300145A true JPH06300145A (en) 1994-10-28
JP3065196B2 JP3065196B2 (en) 2000-07-12

Family

ID=14526226

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5110067A Expired - Lifetime JP3065196B2 (en) 1993-04-12 1993-04-12 Gate valve

Country Status (1)

Country Link
JP (1) JP3065196B2 (en)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5449618A (en) * 1977-09-27 1979-04-19 Yoneki Barubu Kk Sluice valve
JPH0510460A (en) * 1990-10-04 1993-01-19 Seibu Shoji Kk Sluice valve

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5449618A (en) * 1977-09-27 1979-04-19 Yoneki Barubu Kk Sluice valve
JPH0510460A (en) * 1990-10-04 1993-01-19 Seibu Shoji Kk Sluice valve

Also Published As

Publication number Publication date
JP3065196B2 (en) 2000-07-12

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