JPH0735256A - Assembly valve chamber - Google Patents
Assembly valve chamberInfo
- Publication number
- JPH0735256A JPH0735256A JP18013893A JP18013893A JPH0735256A JP H0735256 A JPH0735256 A JP H0735256A JP 18013893 A JP18013893 A JP 18013893A JP 18013893 A JP18013893 A JP 18013893A JP H0735256 A JPH0735256 A JP H0735256A
- Authority
- JP
- Japan
- Prior art keywords
- valve chamber
- valve body
- valve
- hole
- packing
- 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.)
- Pending
Links
Landscapes
- Valve Housings (AREA)
- Mechanically-Actuated Valves (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、地中に埋設された弁体
を、地表面からの開閉操作可能に囲むことにより弁体を
土砂等から保護するための弁室に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a valve chamber for protecting a valve body buried in the ground so that the valve body can be opened and closed from the ground surface so as to protect the valve body from earth and sand.
【０００２】[0002]
【従来の技術】従来、地中に埋設された弁体を、地表面
からの開閉操作可能に囲むことにより弁体を土砂等から
保護するための弁室は、煉瓦、コンクリ−ト、レジンコ
ンクリ−ト等から成り、弁体上部から覆う方式のもの
や、鋳鉄等から成るネジ付二重筒のものがある。2. Description of the Related Art Conventionally, a valve chamber for protecting a valve body from soil and the like by surrounding a valve body buried in the ground so that the valve body can be opened and closed from the surface of the ground, is constructed of bricks, concrete and resin concrete. -There is a type that is made of cast iron etc. and is covered from the top of the valve body, and a type with a double cylinder with screws made of cast iron etc.
【０００３】[0003]
【発明が解決しようとする課題】上記従来の弁室は、煉
瓦、コンクリ−ト、レジンコンクリ−ト等から成るもの
及び鋳鉄等から成るネジ付二重筒のものでも、弁室下部
が開放状態になっているため、設置後、ある期間が経過
すると、地下水、雨水等の影響で水溶状態になった砂泥
が浸入し、遂にはこの砂泥により弁体が埋没することが
多いという問題がある。Even if the conventional valve chamber is made of brick, concrete, resin concrete or the like, or is a double cylinder with a screw made of cast iron or the like, the lower portion of the valve chamber is in an open state. Therefore, after a certain period of time after installation, sand mud that has become water soluble due to the effects of groundwater, rainwater, etc. will infiltrate and eventually the valve body will often be buried by this sand mud. is there.
【０００４】そこで本発明では、弁室が独立した部屋と
して機能するように組付構造とするとともに、ほぼ水密
構造とすることにより上記問題を解決することを技術的
課題とするものである。また、様々な寸法の弁体のう
ち、近似寸法のもの、例えば水道用弁体の口径１００
φ、１２５φ、１５０φを１グル−プとして同一の弁室
で使用可能にする。また、弁体は道路下部に埋設される
ことが多く、且つ道路標高は地形に応じて上下がある一
方、水道管路は地中で水平に設置されることが理想であ
るため、弁室の露頂高さを可変にすることにより、これ
に対応できるようにする。更に、弁室上面は通例道路上
にあり、このため車両通過等により弁室全体が沈下する
傾向にあるが、同弁室沈下により埋設管路に直接的な影
響を与え難いようにする。Therefore, in the present invention, it is a technical object to solve the above-mentioned problems by making the valve chamber have an assembling structure so as to function as an independent chamber, and by making it a substantially watertight structure. In addition, among valve elements of various sizes, those having approximate dimensions, for example, a diameter of a valve element for water supply of 100
φ, 125φ, 150φ can be used in the same valve chamber as one group. In addition, the valve body is often buried in the lower part of the road, and the road elevation varies depending on the terrain, while it is ideal that the water pipe is installed horizontally in the ground. This can be dealt with by making the dew top height variable. Further, the upper surface of the valve chamber is usually on the road, and therefore the entire valve chamber tends to sink due to passage of a vehicle or the like. However, the sinking of the valve chamber makes it difficult to directly affect the buried pipeline.
【０００５】[0005]
【課題を解決するための手段】上記課題解決のための技
術的手段は、 （１）組立弁室を、地中に埋設された弁体の開閉操作を
地表面から可能にするための開閉蓋を上部に有するとと
もに螺合により上下に伸縮する二重筒と、その二重筒の
連通孔と前記弁体に接続される管路が貫通する透孔とを
除いて前記弁体を囲む弁室本体とを備え、その弁室本体
は前記透孔の中心径の高さで上下に分割したうえ、各接
続部にパッキングを挿入した構成にすることである。 （２）また、上記組立弁室において、管路が貫通する開
口部を使用管路の直径より大きくするとともに、その開
口部にパッキングを介して閉塞板を遊嵌し、且つその閉
塞板の略中央に前記管路をパッキングを介して挿通する
透孔をあけ、更に前記閉塞板を中央から上下に分割する
ように構成することである。 （３）また、前記組立弁室において、形状がほぼ立法体
で、各面に異なる半径の切欠を形成した枕を弁体中心位
置に配設し、弁体直径に応じて前記弁体を支持する高さ
を選択できるように構成することである。Technical means for solving the above-mentioned problems are as follows: (1) Opening / closing lid for enabling opening / closing operation of a valve body buried in the ground from the ground surface. A valve chamber surrounding the valve body except for a double cylinder that has an upper part and expands and contracts vertically by screwing, and a communication hole of the double cylinder and a through hole through which a pipe line connected to the valve body passes. The valve chamber main body is divided into upper and lower parts at the height of the center diameter of the through hole, and packing is inserted into each connection part. (2) In the assembled valve chamber, the opening through which the conduit passes is made larger than the diameter of the used conduit, and the closing plate is loosely fitted to the opening via packing, and the closing plate is substantially A through hole is formed in the center for inserting the conduit through the packing, and the blocking plate is divided into upper and lower parts from the center. (3) In the assembled valve chamber, a pillow having a substantially cubic shape and notches having different radii formed on the respective surfaces is arranged at the center of the valve body, and the valve body is supported according to the diameter of the valve body. The height is to be selected.
【０００６】[0006]
【作用】上記構成の組立弁室によれば、 （１）弁室本体は、管路が貫通する透孔の中心径の高さ
で上下に分割され、その分割接続部にパッキングを挿入
しているため、砂泥による弁体の埋没が阻止される。 （２）また、管路が貫通する開口部を使用管路の直径よ
り大きくするとともに、その開口部にパッキングを介し
て閉塞板を遊嵌し、且つその閉塞板の略中央に前記管路
をパッキングを介して挿通する透孔を開口した場合に
は、砂泥による弁体の埋没が阻止されることは勿論、車
両通過等により弁室全体が沈下した場合でも埋設管路に
対する直接的な影響を極めて少なくする作用をする。 （３）更に、枕は様々な寸法の弁体に対して支承台とし
ての機能を果たす。According to the assembled valve chamber having the above-described structure, (1) the valve chamber body is vertically divided by the height of the center diameter of the through hole through which the conduit passes, and packing is inserted into the divided connection portion. Therefore, the valve body is prevented from being buried by sand and mud. (2) Further, the opening through which the pipeline passes is made larger than the diameter of the pipeline to be used, and a closing plate is loosely fitted into the opening via packing, and the pipeline is provided substantially in the center of the closing plate. When the through hole that is inserted through the packing is opened, the valve body is prevented from being buried by sand and mud, and even if the entire valve chamber sinks due to passage of a vehicle or the like, there is a direct effect on the buried pipeline. Acts to significantly reduce (3) Furthermore, the pillow functions as a support for valve bodies of various sizes.
【０００７】[0007]
【実施例】次に、本発明の一実施例を図面を参照しなが
ら説明する。図１は組立弁室の全体的な構成を示した正
面断面図、図２は組立弁室の側面断面図である。図１、
図２に示すように、地中に埋設された上水道用の弁体１
を囲むように配設された組立弁室２の上部は二重筒３に
構成されており、二重筒３の上端部には弁体１の開閉操
作が行われるときに開閉される蓋４が被せられている。
この二重筒３は、外筒３Ａと内筒３Ｂとで構成されてお
り、内筒３Ｂの上端面に上記蓋４が取り付けられてい
る。また、外筒３Ａの内径面と内筒３Ｂの外径面には螺
合ネジ３Ｃが切られており、内筒３Ｂの螺合位置を調節
することにより内筒３Ｂの上端面の高さを調節できるよ
うにして弁体１の地中埋設位置と地表面、あるいは道路
面との間の様々な距離に対応できるようになっている。DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, an embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a front sectional view showing the overall structure of the assembled valve chamber, and FIG. 2 is a side sectional view of the assembled valve chamber. Figure 1,
As shown in FIG. 2, a valve body 1 for waterworks buried in the ground
The upper part of the assembled valve chamber 2 disposed so as to surround the double cylinder 3 is configured as a double cylinder 3, and the upper end of the double cylinder 3 has a lid 4 that is opened and closed when the valve body 1 is opened and closed. Is covered.
The double cylinder 3 is composed of an outer cylinder 3A and an inner cylinder 3B, and the lid 4 is attached to the upper end surface of the inner cylinder 3B. Further, a screwing screw 3C is cut on the inner diameter surface of the outer cylinder 3A and the outer diameter surface of the inner cylinder 3B, and the height of the upper end surface of the inner cylinder 3B is adjusted by adjusting the screwing position of the inner cylinder 3B. It can be adjusted to accommodate various distances between the buried position of the valve body 1 and the ground surface or the road surface.
【０００８】上記二重筒３の外筒３Ａ外周面の下部にフ
ランジ５が形成されており、このフランジ５面はパッキ
ング６を介して弁室本体７の上端開口端面に結合されて
いるとともに、外筒３Ａの下端筒部は弁室本体７の上端
開口孔に挿通されている。A flange 5 is formed on the lower portion of the outer peripheral surface of the outer cylinder 3A of the double cylinder 3, and the surface of the flange 5 is joined to the upper end opening end surface of the valve chamber main body 7 via a packing 6, and The lower end tube portion of the outer cylinder 3A is inserted into the upper end opening hole of the valve chamber body 7.
【０００９】前記弁体１の両端フランジ１Ａ，１Ｂには
パッキング８を介して管路９が接続されており、上記弁
室本体７は、上記管路９の中心径の高さで上下に分割で
きるように構成されている。尚、図面上では弁室本体７
の上部を７Ａとして、また下部を７Ｂとして示してお
り、左右側面には、管路９の直径より大きな開口部が形
成されている。また、上下に分割可能に構成された弁室
本体７の左右側面には四角状の袋部１０Ｌ，１０Ｒが形
成されている。そして弁室本体７の上下分割とともに袋
部１０Ｌ，１０Ｒも上下に分割されるものである。A pipe line 9 is connected to both end flanges 1A and 1B of the valve body 1 through a packing 8, and the valve chamber body 7 is divided into upper and lower parts at the height of the center diameter of the pipe line 9. It is configured to be able to. In the drawing, the valve chamber body 7
The upper part is shown as 7A and the lower part is shown as 7B, and openings larger than the diameter of the conduit 9 are formed on the left and right side surfaces. Further, rectangular bag portions 10L and 10R are formed on the left and right side surfaces of the valve chamber body 7 which is vertically separable. The bag portions 10L and 10R are also divided into upper and lower parts as the valve chamber body 7 is divided into upper and lower parts.
【００１０】上記袋部１０Ｌ，１０Ｒには、中央から上
下に分割可能な閉塞板１１Ｌ，１１Ｒがパッキング１２
Ｌ，１２Ｒを介して遊嵌されている。また、閉塞板１１
Ｌ，１１Ｒの中央部には前記管路９の直径より大きな直
径の透孔があけられており、その透孔と管路９の外周面
との間にはパッキング１３Ｌ，１３Ｒが間着されてい
る。従って、車両通過等により弁室全体が沈下した場合
でも、埋設された管路９と弁室本体７との間にパッキン
グ１２Ｌ，１２Ｒ、及びパッキング１３Ｌ，１３Ｒが介
在されているため、管路９に対して直接的な影響を極め
て少なくすることができる。また、管路９の直径は様々
であるが、管路９の直径に対応した透孔を有する複数種
類の閉塞板１１Ｌ，１１Ｒを予め用意しておけば、弁室
本体７を変えずに様々な弁体１に対応させることができ
る。The bag portions 10L and 10R are packed with closure plates 11L and 11R which can be vertically divided from the center.
It is loosely fitted through L and 12R. Also, the closing plate 11
A through hole having a diameter larger than that of the pipe line 9 is formed in the central portion of L and 11R, and packings 13L and 13R are attached between the through hole and the outer peripheral surface of the pipe line 9. There is. Therefore, even if the entire valve chamber sinks due to passage of a vehicle or the like, since the packings 12L and 12R and the packings 13L and 13R are interposed between the buried pipe line 9 and the valve chamber body 7, the pipe line 9 It is possible to minimize the direct influence on the. Further, the diameter of the conduit 9 varies, but if a plurality of types of closing plates 11L and 11R having through holes corresponding to the diameter of the conduit 9 are prepared in advance, the valve chamber body 7 can be varied without changing. It can be applied to various valve bodies 1.
【００１１】尚、図２に示すように、弁室本体７の上部
７Ａ及び下部７Ｂの前後部における接合面にはパッキン
グ１４が装着されており、水密状の構造を構成してい
る。また、図３は前記二重筒３の縦断面図である。As shown in FIG. 2, packing 14 is mounted on the joint surfaces of the upper portion 7A and the lower portion 7B of the valve chamber main body 7 at the front and rear portions to form a watertight structure. Further, FIG. 3 is a vertical sectional view of the double cylinder 3.
【００１２】図１に示すように、弁体１の下部には弁体
１の支持台として金属製の枕１５が配設されている。こ
の枕１５はほぼ立法体を成し、各面に異なる半径の凹部
が形成されたもので、弁体１の直径に応じて、弁体１が
載置される面が選択される。尚、図４及び図５は上記枕
１５の正面図、及び側面図である。As shown in FIG. 1, a metal pillow 15 is disposed below the valve body 1 as a support for the valve body 1. The pillow 15 is substantially a cubic body, and concave portions having different radii are formed on each surface, and the surface on which the valve body 1 is mounted is selected according to the diameter of the valve body 1. 4 and 5 are a front view and a side view of the pillow 15.
【００１３】次に、上記構成の組立弁室２を実際に弁体
１に適用する工程を説明する。予め地表面から掘り下げ
られた位置において弁体１を配置する位置を決め、その
位置に弁室本体７の下部７Ｂを置く。尚、その下部７Ｂ
の袋部１０Ｌ，１０Ｒには前記閉塞板１１Ｌ，１１Ｒそ
れぞれの下半分がパッキング１２Ｌ，１２Ｒを介して遊
嵌されているとともに、閉塞板１１Ｌ，１１Ｒそれぞれ
の半割り状態にある透孔の半円部にパッキング１３Ｌ，
１３Ｒが装着されている。この状態で下部７Ｂの上面に
枕１５を載置し、枕１５に弁体１を載せたあと、管路９
の外周面下半分とパッキング１３Ｌ，１３Ｒとを密着さ
せる。Next, a process of actually applying the assembled valve chamber 2 having the above-mentioned configuration to the valve body 1 will be described. The position where the valve body 1 is arranged is determined in advance at a position dug down from the ground surface, and the lower portion 7B of the valve chamber body 7 is placed at that position. In addition, the lower part 7B
The lower halves of the closing plates 11L and 11R are loosely fitted to the bag portions 10L and 10R via packings 12L and 12R, and the semicircle of the through hole in a half-divided state of the closing plates 11L and 11R. Packing 13L,
13R is installed. In this state, the pillow 15 is placed on the upper surface of the lower portion 7B, the valve body 1 is placed on the pillow 15, and then the pipe 9
The lower half of the outer peripheral surface and the packings 13L and 13R are closely attached.
【００１４】次に、弁室本体７の上部７Ａの袋部１０
Ｌ，１０Ｒに閉塞板１１Ｌ，１１Ｒそれぞれの上半分を
パッキング１２Ｌ，１２Ｒを介して遊嵌させるととも
に、閉塞板１１Ｌ，１１Ｒそれぞれの半割り状態にある
透孔の半円部にパッキング１３Ｌ，１３Ｒを装着し、そ
のパッキング１３Ｌ，１３Ｒを管路９の外周面上半分と
密着させるとともに、弁室本体７の上部７Ａを、前記パ
ッキング１４を間着した状態で下部７Ｂに着接させる。Next, the bag portion 10 of the upper portion 7A of the valve chamber body 7
The upper halves of the closing plates 11L and 11R are loosely fitted to the L and 10R via the packings 12L and 12R, and the packings 13L and 13R are attached to the semicircular portions of the through holes which are in the half-divided state of the closing plates 11L and 11R. Then, the packings 13L and 13R are attached to the upper half of the outer peripheral surface of the conduit 9, and the upper portion 7A of the valve chamber body 7 is attached to the lower portion 7B with the packing 14 interposed.
【００１５】上記状態で弁室本体７の組立が完了するた
め、今度は二重筒３の内筒３Ｂを回転させ、螺合位置を
調整することにより内筒３Ｂの上端面と地表面あるいは
道路面とを一致させた状態で埋め戻す。そして、埋め戻
したあと、蓋４を開けば、地表面あるいは道路面から弁
体１の開閉操作をすることができる。Since the assembly of the valve chamber body 7 is completed in the above state, the inner cylinder 3B of the double cylinder 3 is rotated and the screwing position is adjusted to adjust the upper end surface of the inner cylinder 3B to the ground surface or the road. Backfill with the faces matched. Then, after backfilling, if the lid 4 is opened, the valve body 1 can be opened and closed from the ground surface or the road surface.
【００１６】以上のようにして弁体１をほぼ水密構造で
囲むことができるため、弁体１の設置後、相当期間が経
過しても、地下水、雨水等の影響で水溶状態になった砂
泥による埋没を防止することができる。そのため、弁体
１を電動化することも可能になる。Since the valve body 1 can be surrounded by a substantially watertight structure as described above, even after a considerable period of time has elapsed after the valve body 1 was installed, the sand became water-soluble due to the influence of groundwater, rainwater, etc. It is possible to prevent burial due to mud. Therefore, the valve body 1 can be electrically operated.
【００１７】[0017]
【発明の効果】以上のように本発明によれば、 （１）地中に設置された管路を含む弁体全体を、パッキ
ングを介在させてほぼ水密構造状態で囲むことができる
ため、弁室内への雨水、地下水、砂泥の浸入を阻止し、
弁体の埋没を防止することができる。 （２）分割、組立構造であるため、製造及び設置作業が
容易である。 （３）また、弁室内への雨水、地下水、砂泥の浸入を阻
止し、弁体の埋没を防止することができるため、弁体を
電動化することができる。 （４）弁室の高さが調節可能であるため、設置作業が容
易である。 （５）複数口径の透孔を有する閉塞板を組み換え可能な
構成としたため、同一の弁室本体で、異径寸法の弁体に
対応することができる。 （６）弁体を支承する枕は一種類で複数口径の弁体に対
応させることができる。As described above, according to the present invention, (1) Since the entire valve body including the pipeline installed in the ground can be enclosed in a substantially watertight structure with the packing interposed, the valve Prevents rainwater, groundwater, and sand and mud from entering the room,
It is possible to prevent the valve body from being buried. (2) Since the structure is divided and assembled, manufacturing and installation work is easy. (3) In addition, since it is possible to prevent rainwater, groundwater, and sand and mud from entering the valve chamber and prevent the valve body from being buried, the valve body can be electrically operated. (4) Since the height of the valve chamber can be adjusted, the installation work is easy. (5) Since the closing plate having through holes having a plurality of diameters can be recombined, the same valve chamber body can be used for valve bodies having different diameters. (6) The type of pillow that supports the valve element can be one type and can be applied to valve elements having multiple calibers.
【図１】組立弁室の全体的な構成を示した正面断面図で
ある。FIG. 1 is a front cross-sectional view showing the overall configuration of an assembled valve chamber.
【図２】組立弁室の側面断面図である。FIG. 2 is a side sectional view of an assembled valve chamber.
【図３】二重筒の構成を示した断面図である。FIG. 3 is a cross-sectional view showing the structure of a double cylinder.
【図４】弁体を支承する枕の正面図である。FIG. 4 is a front view of a pillow that supports a valve body.
【図５】弁体を支承する枕の側面図である。FIG. 5 is a side view of a pillow that supports a valve body.
１ 弁体 ２ 組立弁室 ３ 二重筒 ４ 蓋 ７ 弁室本体 ７Ａ 上部 ７Ｂ 下部 ９ 管路 １０Ｌ 袋部 １０Ｒ 袋部 １１Ｌ 閉塞板 １１Ｒ 閉塞板 １２Ｌ パッキング １２Ｒ パッキング １３Ｌ パッキング １３Ｒ パッキング １４ パッキング １５ 枕 1 valve body 2 assembly valve chamber 3 double cylinder 4 lid 7 valve chamber body 7A upper part 7B lower part 9 pipeline 10L bag part 10R bag part 11L closing plate 11R closing plate 12L packing 12R packing 13L packing 13R packing 14 packing 15 pillow
Claims (3)
面から可能にするための開閉蓋を上部に有するとともに
螺合により上下に伸縮する二重筒と、その二重筒の連通
孔と前記弁体に接続される管路が貫通する透孔とを除い
て前記弁体を囲む弁室本体とを備え、その弁室本体を前
記透孔の中心径の高さで上下に分割したうえ、各接続部
にパッキングを挿入したことを特徴とする組立弁室。1. A double cylinder that has an opening / closing lid at the top for opening and closing a valve body buried in the ground from the ground surface, and expands and contracts vertically by screwing, and the communication of the double cylinder. A valve chamber body surrounding the valve body except for a hole and a through hole through which a conduit connected to the valve body penetrates, and the valve chamber body is vertically divided by the height of the center diameter of the through hole. In addition, the assembled valve chamber is characterized in that packing is inserted into each connection portion.
より大きくするとともに、その開口部に対してパッキン
グを介して閉塞板を遊嵌し、且つその閉塞板の略中央に
パッキングを介して前記管路を挿通する透孔を開口する
とともに前記閉塞板を中央から上下に分割するように構
成したことを特徴とする請求項１の組立弁室。2. The opening through which the pipeline passes is made larger than the diameter of the pipeline to be used, and a closing plate is loosely fitted to the opening via a packing, and the packing is provided substantially at the center of the closing plate. The assembled valve chamber according to claim 1, characterized in that a through hole for inserting the pipe line is opened through the closing plate and the closing plate is divided vertically from the center.
の切欠を形成した枕を弁体中心位置に配設し、弁体直径
に応じて前記弁体を支持する高さを選択できるように構
成したことを特徴とする請求項１の組立弁室。3. A pillow having a substantially cubic shape with notches having different radii formed on each surface is arranged at the center position of the valve body, and the height for supporting the valve body can be selected according to the diameter of the valve body. The assembled valve chamber according to claim 1, wherein the assembled valve chamber is configured as described above.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18013893A JPH0735256A (en) | 1993-07-21 | 1993-07-21 | Assembly valve chamber |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18013893A JPH0735256A (en) | 1993-07-21 | 1993-07-21 | Assembly valve chamber |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0735256A true JPH0735256A (en) | 1995-02-07 |
Family
ID=16078078
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP18013893A Pending JPH0735256A (en) | 1993-07-21 | 1993-07-21 | Assembly valve chamber |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0735256A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2004094883A1 (en) * | 2003-04-21 | 2004-11-04 | Tokyo Technological Labo Co., Ltd. | Heater unit for installation on valve |
| KR100591915B1 (en) * | 2006-02-23 | 2006-06-21 | 주식회사 동양밸브 | A controllable valve operator of sluice-valve |
| CN107448724A (en) * | 2017-08-29 | 2017-12-08 | 中石化川气东送天然气管道有限公司 | A kind of all sealing valve blocking clamper |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS539038A (en) * | 1976-07-13 | 1978-01-27 | Asahi Malleable Iron Co Ltd | Valve pit for laying and its valve |
| JPS56113879A (en) * | 1980-02-12 | 1981-09-08 | Sadayoshi Yamazaki | Method and box for maintaining temperature of fluid control valve |
| JPS6150869B2 (en) * | 1978-08-03 | 1986-11-06 | Yoshida Kogyo Kk |
-
1993
- 1993-07-21 JP JP18013893A patent/JPH0735256A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS539038A (en) * | 1976-07-13 | 1978-01-27 | Asahi Malleable Iron Co Ltd | Valve pit for laying and its valve |
| JPS6150869B2 (en) * | 1978-08-03 | 1986-11-06 | Yoshida Kogyo Kk | |
| JPS56113879A (en) * | 1980-02-12 | 1981-09-08 | Sadayoshi Yamazaki | Method and box for maintaining temperature of fluid control valve |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2004094883A1 (en) * | 2003-04-21 | 2004-11-04 | Tokyo Technological Labo Co., Ltd. | Heater unit for installation on valve |
| US7849873B2 (en) | 2003-04-21 | 2010-12-14 | Tokyo Technological Labo Co., Ltd. | Heater unit for installation on valve |
| KR100591915B1 (en) * | 2006-02-23 | 2006-06-21 | 주식회사 동양밸브 | A controllable valve operator of sluice-valve |
| CN107448724A (en) * | 2017-08-29 | 2017-12-08 | 中石化川气东送天然气管道有限公司 | A kind of all sealing valve blocking clamper |
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