JP2001027349A - Gate valve device and valve box device - Google Patents

Gate valve device and valve box device

Info

Publication number
JP2001027349A
JP2001027349A JP11202856A JP20285699A JP2001027349A JP 2001027349 A JP2001027349 A JP 2001027349A JP 11202856 A JP11202856 A JP 11202856A JP 20285699 A JP20285699 A JP 20285699A JP 2001027349 A JP2001027349 A JP 2001027349A
Authority
JP
Japan
Prior art keywords
valve
pipe
branch pipe
branch
box
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
Application number
JP11202856A
Other languages
Japanese (ja)
Inventor
Toshiyuki Sato
敏之 佐藤
Tamotsu Yamashita
保 山下
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.)
Suiken KK
Original Assignee
Suiken 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 Suiken KK filed Critical Suiken KK
Priority to JP11202856A priority Critical patent/JP2001027349A/en
Publication of JP2001027349A publication Critical patent/JP2001027349A/en
Pending legal-status Critical Current

Links

Abstract

PROBLEM TO BE SOLVED: To provide a gate valve device and valve box device capable of easily meeting a shallow burying depth. SOLUTION: These devices are provided with a T-shaped pipe having a main pipe part 11 in which a fluid flows and which is not divided in a circumferential direction and a branch pipe part 12 forkedly projecting upward of the main pipe part 11, an opening/closing valve 18 provided in the branch pipe part 12 for opening and closing the branch pipe part 12, a valve cover 3 joined to the upper end of the branched pipe part 12, and a gate valve element 4 which is housed in the valve cover 3 and closer to the valve cover 3 side from the opening/closing valve 18 in the branch pipe part 12 and blocks a fluid flowing in the main pipe part 11 across the inside of the main pipe part 11.

Description

【発明の詳細な説明】DETAILED DESCRIPTION OF THE INVENTION

【0001】[0001]

【発明の属する技術分野】本発明は、水道管やガス管な
どを閉塞するための仕切弁装置および弁箱装置に関する
ものである。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a gate valve device and a valve box device for closing a water pipe, a gas pipe, and the like.

【0002】[0002]

【従来の技術】従来より、水道管などの管路には、予め
仕切弁装置が設けられている。かかる仕切弁装置には弁
室と仕切弁体とが設けられており、職員が必要に応じて
流体の流れを遮断する。ところで、水道管は一般に埋設
深さ(土被り)が1.2m程度に設定されていた。そのた
め、施工上、水道管を埋設するための穴を深く掘る必要
があるので、埋設コストが嵩んでいた。そこで、今後、
埋設深さが0.6m程度の浅いものとなっていく予定があ
る。
2. Description of the Related Art Conventionally, a pipe valve such as a water pipe is provided with a gate valve device in advance. Such a gate valve device is provided with a valve chamber and a gate valve body, and the staff shuts off the flow of fluid as needed. By the way, water pipes were generally buried at a depth of about 1.2 m (earth covering). Therefore, it is necessary to dig a hole for burying the water pipe deeply in the construction, and the burial cost is increased. So, in the future,
The burial depth is expected to be as shallow as 0.6m.

【0003】[0003]

【発明が解決しようとする課題】しかし、埋設深さを浅
くした場合、仕切弁の弁蓋を水道管の上方に設けると、
仕切弁装置の高さが高くなるので、浅い埋設深さに対応
しにくい。
However, when the burial depth is reduced, if the valve lid of the gate valve is provided above the water pipe,
Since the height of the gate valve device is increased, it is difficult to cope with a shallow burial depth.

【0004】本発明は、前記従来の問題を解決するため
になされたもので、その目的は、浅い埋設深さに対応し
易い仕切弁装置および弁箱装置を提供することである。
The present invention has been made to solve the above-mentioned conventional problems, and an object of the present invention is to provide a gate valve device and a valve box device which can easily cope with a small burial depth.

【0005】[0005]

【課題を解決するための手段】前記目的を達成するため
の本第1発明の仕切弁装置の構成を図2を用いて説明す
る。図2に示すように、本仕切弁装置は、流体が流れる
と共に周方向に分割されていない本管部11と該本管部
11から上方に分岐するようにして突出する分岐管部1
2とを備えたT型管10、前記分岐管部12に設けられ
前記分岐管部12を開閉する開閉弁18、前記分岐管部
12の上端に接合される弁蓋3、ならびに、該弁蓋3お
よび前記分岐管部12における開閉弁18よりも弁蓋3
側に収容されると共に前記本管部11内を横断して前記
本管部11に流れる流体を閉塞する仕切弁体4を備えて
いる。
The construction of the gate valve device of the first invention for achieving the above object will be described with reference to FIG. As shown in FIG. 2, the gate valve device includes a main pipe portion 11 that is not divided in the circumferential direction while a fluid flows, and a branch pipe portion 1 that protrudes from the main pipe portion 11 so as to branch upward.
2, a T-shaped pipe 10 having an opening and closing valve 18, an on-off valve 18 provided in the branch pipe section 12 to open and close the branch pipe section 12, a valve lid 3 joined to an upper end of the branch pipe section 12, and the valve lid 3 and the valve cover 3 more than the on-off valve 18 in the branch pipe section 12.
A gate valve body 4 is provided on the side and closes the fluid flowing through the main pipe 11 across the main pipe 11.

【0006】つぎに、前記仕切弁装置の用い方につい
て、図1〜図3を用いて簡単に説明する。図1に示すよ
うに、仕切弁体やその弁蓋がない状態の弁箱装置1を直
管などに接続して地中に埋設する。止水する必要が生じ
た場合には、図2に示すように、仕切弁体4が収容され
た弁蓋3を弁箱装置1に接合する。前記接合後、開閉弁
18を開弁し、仕切弁体4を下降させて、図3に示すよ
うに、仕切弁体4を本管部11の内面に圧接させて流体
の流れを遮断する。
Next, how to use the gate valve device will be briefly described with reference to FIGS. As shown in FIG. 1, a valve box device 1 without a partition valve body and its valve lid is connected to a straight pipe or the like and buried underground. When it becomes necessary to stop the water, the valve lid 3 containing the gate valve body 4 is joined to the valve box device 1 as shown in FIG. After the joining, the on-off valve 18 is opened, the gate valve body 4 is lowered, and as shown in FIG. 3, the gate valve body 4 is pressed against the inner surface of the main pipe portion 11 to cut off the flow of fluid.

【0007】ところで、管路の遮断箇所を全て同時に遮
断することはないので、弁蓋や仕切弁は1つの管径サイ
ズにつき少数購入しておけばよい。そのため、商品とし
ては、弁箱装置のみが多量に販売されることになるの
で、弁箱装置単体についても権利が保護される必要があ
る。すなわち、本第2発明の弁箱装置は、流体が流れる
と共に周方向に分割されていない本管部と該本管部から
上方に分岐するようにして突出する分岐管部とを備えた
T型管、ならびに、前記分岐管部に設けられ前記分岐管
部を開閉する開閉弁を備え、前記分岐管部の開口端から
仕切弁体を挿入した際に、該仕切弁体が前記分岐管部内
を下方に移動して前記本管部の内面に圧接することがで
きるように前記分岐管部が形成されている。
[0007] Incidentally, since all the cutoff points of the pipeline are not simultaneously blocked, a small number of valve covers and gate valves may be purchased for one pipe diameter size. For this reason, as a product, only the valve box device is sold in large quantities, so that the rights of the valve box device alone need to be protected. That is, the valve box device according to the second aspect of the present invention has a T-type having a main pipe portion through which fluid flows and which is not divided in the circumferential direction, and a branch pipe portion projecting upward from the main pipe portion. A pipe, and an on-off valve provided in the branch pipe part for opening and closing the branch pipe part, and when a gate valve body is inserted from an open end of the branch pipe part, the gate valve body moves inside the branch pipe part. The branch pipe portion is formed so that it can move downward and press against the inner surface of the main pipe portion.

【0008】本発明において、「流体が流れると共に周
方向に分割されていない」と定義したのは、不断水で工
事を行う、所謂ストッパー用の割T型管や穿孔用T型管
と明確に区別するためである。「流体」とは、水などの
液体やガスなどの気体のことをいう。
In the present invention, the term "split T-shaped pipe for stopper" or "T-shaped pipe for drilling" is clearly defined as "the fluid flows and is not divided in the circumferential direction". This is to distinguish them. “Fluid” refers to a liquid such as water or a gas such as a gas.

【0009】[0009]

【発明の実施の形態】以下、本発明の一実施形態を図面
にしたがって説明する。図1に示すように、弁箱装置1
はT型管10を備えている。該T型管10は、流体が流
れると共に周方向に分割されていない本管部11と、該
本管部11から上方に分岐するように突出する分岐管部
12とを備えている。分岐管部12には後述する開閉弁
18(図2)を収容する弁箱部13が形成されている。
該弁箱部13を含む分岐管部12と本管部11とは一体
成型されている。
DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below with reference to the drawings. As shown in FIG.
Has a T-tube 10. The T-shaped pipe 10 includes a main pipe section 11 through which a fluid flows and which is not divided in the circumferential direction, and a branch pipe section 12 protruding from the main pipe section 11 so as to branch upward. The branch pipe section 12 is formed with a valve box section 13 that houses an on-off valve 18 (FIG. 2) described later.
The branch pipe section 12 including the valve box section 13 and the main pipe section 11 are integrally formed.

【0010】前記分岐管部12の開口端(上端)には、
フランジ15が設けられている。該フランジ15には栓
16が取り付けられており、該栓16によって分岐管部
12の開口端が閉塞されている。なお、前記本管部11
の両端には、たとえば、フランジを介して直管2,2な
どが接合されており、流路17(図2)が形成されてい
る。
At the open end (upper end) of the branch pipe section 12,
A flange 15 is provided. A stopper 16 is attached to the flange 15, and the opening end of the branch pipe section 12 is closed by the stopper 16. The main pipe 11
For example, straight pipes 2, 2 and the like are joined to each other via a flange, and a flow path 17 (FIG. 2) is formed.

【0011】図2は流体の流れを遮断する場合に、前記
弁箱装置1の上端に弁蓋3を接合した状態を示す。流体
の流れを遮断する場合には、図2に示すように、弁箱装
置1の分岐管部12の上端には、フランジ15を介し
て、前記栓16(図1)の代わりに弁蓋3が接合され
る。前記分岐管部12には、該分岐管部12の開口端側
12aと基端側12b(本管部11側)との間を閉塞す
る開閉弁18および該開閉弁18の閉止時の収容スペー
ス18Sが設けられている。開閉弁18は分岐管部12
の管径方向Xに移動可能になっている。開閉弁18は閉
弁時に開口端側12aと基端側12bとの間を閉塞す
る。
FIG. 2 shows a state in which a valve cover 3 is joined to the upper end of the valve box device 1 when the flow of fluid is shut off. In order to shut off the flow of the fluid, as shown in FIG. 2, a valve cover 3 is provided at the upper end of the branch pipe portion 12 of the valve box device 1 via a flange 15 instead of the plug 16 (FIG. 1). Are joined. In the branch pipe section 12, an on-off valve 18 that closes between the open end side 12a and the base end side 12b (on the main pipe section 11 side) of the branch pipe section 12, and a storage space when the on-off valve 18 is closed 18S is provided. The on-off valve 18 is connected to the branch pipe 12
In the pipe diameter direction X. The on-off valve 18 closes between the open end 12a and the proximal end 12b when the valve is closed.

【0012】図1に示すように、分岐管部12にはバイ
パス配管14が設けられている。バイパス配管14は開
閉弁18(図2)により仕切られた2つの空間(開口端
側12aの空間と基端側12bの空間)を接続するもの
であり、バイパス配管14には該バイパス配管14を開
閉するためのバイパス弁14Vが設けられている。
As shown in FIG. 1, a bypass pipe 14 is provided in the branch pipe section 12. The bypass pipe 14 connects two spaces (a space on the opening end side 12a and a space on the base end side 12b) partitioned by the on-off valve 18 (FIG. 2). A bypass valve 14V for opening and closing is provided.

【0013】図2に示す弁蓋3には仕切弁体4が収容さ
れている。該仕切弁体4は、たとえば、ゴム製のシール
部43を有しており、分岐管部12における開閉弁18
よりも弁蓋3側および該弁蓋3に収容されている。仕切
弁体4は、スピンドル41を正逆方向に回転させること
により、流路17の直交方向Yに昇降可能に設けられて
いる。したがって、仕切弁体4は、本管部11内を横断
して下方に移動し、シール部43が本管部11の内面に
圧接して本管部11に流れる流体を遮断する位置(閉弁
位置)P1と、開弁位置P2との間を移動できるように
なっている。なお、スピンドル41には周知のコマ42
が螺合している。
A gate valve body 4 is accommodated in the valve cover 3 shown in FIG. The gate valve body 4 has, for example, a rubber seal portion 43, and is provided with an on-off valve 18 in the branch pipe portion 12.
And is housed in the valve lid 3. The gate valve body 4 is provided so as to be able to move up and down in the orthogonal direction Y of the flow path 17 by rotating the spindle 41 in the forward and reverse directions. Therefore, the gate valve body 4 moves downward across the inside of the main pipe portion 11, and the seal portion 43 presses against the inner surface of the main pipe portion 11 to block the fluid flowing through the main pipe portion 11 (the valve closing position). (Position) P1 and a valve opening position P2. The spindle 41 has a well-known frame 42
Is screwed.

【0014】図3は遮断時における仕切弁装置の横断面
を示す。図3に示すように、仕切弁体4は遮断時におい
て、本管部11の内面に圧接される。分岐管部12にお
ける仕切弁体4が移動する内幅Wは、本管部11の破線
で示す内径D以上の値に設定されている。
FIG. 3 shows a cross section of the gate valve device when shut off. As shown in FIG. 3, the gate valve body 4 is pressed against the inner surface of the main pipe portion 11 when shut off. The inner width W of the branch pipe portion 12 in which the gate valve body 4 moves is set to a value equal to or larger than the inner diameter D of the main pipe portion 11 indicated by a broken line.

【0015】つぎに、本仕切弁装置の用い方について説
明する。まず、図1に示すように、直管2,2にフラン
ジを介して弁箱装置1の本管部11を接合して埋設した
後、流体を流す。なお、弁箱部13内の開閉弁18(図
2)は、予め開弁状態に設定しておく。
Next, how to use the gate valve device will be described. First, as shown in FIG. 1, the main pipe portion 11 of the valve box device 1 is joined to and embedded in the straight pipes 2 and 2 via a flange, and then a fluid flows. The on-off valve 18 (FIG. 2) in the valve box 13 is set in an open state in advance.

【0016】つぎに、管路を遮断する必要が生じた場
合、開閉弁18を閉方向に移動させて閉弁し、開口端側
12aと基端側12bとの間を閉塞した後、栓16を取
り去る。その後、図2に示すように、弁蓋3をフランジ
15を介して分岐管部12の上端に接合する。該接合
後、バイパス弁14V(図1)を開き、バイパス配管1
4(図1)を介して開口端側12aの流体圧(水圧)と
基端側12bの流体圧とを同圧にする。
Next, when it becomes necessary to shut off the pipe, the on-off valve 18 is moved in the closing direction to close the valve, and the space between the open end 12a and the proximal end 12b is closed. Remove. Thereafter, as shown in FIG. 2, the valve lid 3 is joined to the upper end of the branch pipe section 12 via the flange 15. After the joining, the bypass valve 14V (FIG. 1) is opened, and the bypass pipe 1 is opened.
4 (FIG. 1), the fluid pressure (water pressure) on the open end 12a and the fluid pressure on the proximal end 12b are made equal.

【0017】その後、開閉弁18を開弁する。該開弁
後、スピンドル41を回転させて仕切弁体4を開弁位置
P2から閉弁位置P1に下降させ、図3に示すように、
本管部11の内面に仕切弁体4を圧接させて、本管部1
1に流れる流体の流れを遮断する。
Thereafter, the on-off valve 18 is opened. After the valve is opened, the spindle 41 is rotated to lower the gate valve body 4 from the valve opening position P2 to the valve closing position P1, and as shown in FIG.
The gate valve body 4 is brought into pressure contact with the inner surface of the main pipe section 11 to form the main pipe section 1.
1 to shut off the flow of fluid.

【0018】前記構成において本装置は、常時は図1の
T字管10の部分のみが埋設されており、管路の遮断が
必要な場合にのみ弁蓋3を接合するので、浅い埋設深さ
に対応し易い。また、必要に応じて弁箱装置1に弁蓋3
を接合して管路を遮断するようにしたから、管路の遮断
箇所ごとに仕切弁体4を設ける必要がなく、1つの管径
サイズにつき1セットないし数セットの弁蓋3および仕
切弁体4を用意するだけでよいので、コストを低減し得
る。
In the above construction, the present device normally has only the T-tube 10 of FIG. 1 buried therein, and the valve cover 3 is joined only when it is necessary to cut off the pipeline. Easy to respond to. Also, if necessary, the valve cover device 3
Are joined so as to cut off the pipe, so that there is no need to provide the gate valve body 4 at each cut-off point of the pipe line, and one or several sets of the valve lid 3 and the gate valve body for one pipe diameter size. 4 can be prepared, so that the cost can be reduced.

【0019】さらに、仕切弁体4を収容した弁蓋3を弁
箱装置1と切り離して、所定の保管場所に保管しておく
ことができるから、ゴム製のシール部43をはじめとす
る仕切弁体4の経時的劣化を防止することができる。し
たがって、止水性能も向上する。
Further, since the valve cover 3 containing the gate valve body 4 can be separated from the valve box device 1 and stored in a predetermined storage location, the gate valve including the rubber seal portion 43 can be used. The temporal deterioration of the body 4 can be prevented. Therefore, the water stopping performance is also improved.

【0020】なお、図4および図5に示すように、開閉
弁18として回転軸19Aを中心に回動する開閉弁18
Aを設けてもよい。開閉弁18Aは、開弁位置P1から
回転軸19Aを中心に二点鎖線に示す閉弁位置P2まで
矢印方向に回転し、開口端側12aと基端側12bとの
間を閉塞する。図5に示すように、前記分岐管部12の
平面断面形状は略四角形に形成されている。
As shown in FIGS. 4 and 5, the on-off valve 18 which rotates about a rotating shaft 19A is used as the on-off valve 18.
A may be provided. The opening / closing valve 18A rotates in the direction of the arrow from the valve opening position P1 to the valve closing position P2 indicated by the two-dot chain line around the rotation shaft 19A, and closes the gap between the opening end side 12a and the base end side 12b. As shown in FIG. 5, the planar cross-sectional shape of the branch pipe section 12 is formed to be substantially square.

【0021】また、図6および図7に示すように、開閉
弁として回転軸19Bを中心に回動する開閉弁18Bを
設けてもよい。開閉弁18Bは、開弁位置P1から回転
軸19Bを中心に二点鎖線に示す閉弁位置P2までの矢
印方向に回転し、開口端側12aと基端側12bとの間
を閉塞する。
As shown in FIGS. 6 and 7, an on-off valve 18B that rotates about a rotating shaft 19B may be provided as an on-off valve. The opening / closing valve 18B rotates in the arrow direction from the valve opening position P1 to the valve closing position P2 indicated by a two-dot chain line around the rotation shaft 19B, and closes the gap between the opening end side 12a and the base end side 12b.

【0022】ところで、前記実施形態では、弁箱装置1
と直管2,2とをフランジを介して接合するようにした
が、A形やK形のパッキンと押輪などをの可撓継手を用
いて接合してもよい。
In the above embodiment, the valve box device 1
And the straight pipes 2 and 2 are joined via the flanges, but it is also possible to join the A-shaped or K-shaped packing and the press ring using a flexible joint.

【0023】[0023]

【発明の効果】以上説明したように、本発明によれば、
流路の遮断が必要な場合にのみ弁蓋を接合するので、浅
い埋設深さに対応し易い。また、必要に応じて弁箱装置
に弁蓋を接合して管路を遮断するようにしたから、管路
の遮断箇所ごとに仕切弁体を設ける必要がないので、1
つの管径サイズにつき1セットないし数セットの弁蓋お
よび仕切弁体を用意するだけでよいのでコストを低減し
得る。さらに、仕切弁体を収容した弁蓋を弁箱装置と切
り離して、所定の保管場所に保管しておくことができる
から、仕切弁体の経時的劣化を防止することができる。
したがって、止水性能も向上する。
As described above, according to the present invention,
Since the valve lid is joined only when it is necessary to shut off the flow path, it is easy to cope with a shallow burial depth. Further, since a valve lid is joined to the valve box device as required to block the pipeline, there is no need to provide a gate valve at each location where the pipeline is blocked.
It is only necessary to prepare one or several sets of valve lids and gate valves for one pipe diameter size, so that the cost can be reduced. Further, since the valve lid accommodating the gate valve body can be separated from the valve box device and stored in a predetermined storage location, the gate valve body can be prevented from being deteriorated with time.
Therefore, the water stopping performance is also improved.

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

【図1】本発明の一実施形態にかかる弁箱装置を示す側
面図である。
FIG. 1 is a side view showing a valve box device according to an embodiment of the present invention.

【図2】弁箱装置に弁蓋を接合した状態、すなわち、仕
切弁装置を示す一部断面した側面図である。
FIG. 2 is a partially sectional side view showing a state in which a valve lid is joined to a valve box device, that is, a gate valve device.

【図3】同仕切弁装置の縦断面図である。FIG. 3 is a longitudinal sectional view of the gate valve device.

【図4】開閉弁の変形例を示す断面図である。FIG. 4 is a sectional view showing a modification of the on-off valve.

【図5】同変形例を示す平面断面図である。FIG. 5 is a plan sectional view showing the modification.

【図6】開閉弁の他の変形例を示す断面図である。FIG. 6 is a sectional view showing another modification of the on-off valve.

【図7】同変形例を示す平面断面図である。FIG. 7 is a plan sectional view showing the modification.

【符号の説明】[Explanation of symbols]

1:弁箱装置 10:T形管 12:分岐管部 12a:開口端側 12b:基端側 14:バイパス配管 14V:バイパス弁 15:フランジ 16:栓 18:開閉弁 18S:収容スペース 3:弁蓋 4:仕切弁体 R:内径 W:内幅 1: Valve box device 10: T-shaped pipe 12: Branch pipe section 12a: Open end side 12b: Base end side 14: Bypass piping 14V: Bypass valve 15: Flange 16: Plug 18: On-off valve 18S: Housing space 3: Valve Lid 4: Gate valve R: Inner diameter W: Inner width

───────────────────────────────────────────────────── フロントページの続き Fターム(参考) 3H051 AA03 BB03 BB04 BB10 CC06 CC11 CC12 CC14 CC15 FF01 FF02 3H052 AA01 BA25 BA26 BA35 CC01 EA01 EA02 EA16 3H053 AA03 AA25 AA26 BC01 DA01 DA02 DA12  ──────────────────────────────────────────────────続 き Continued on the front page F term (reference) 3H051 AA03 BB03 BB04 BB10 CC06 CC11 CC12 CC14 CC15 FF01 FF02 3H052 AA01 BA25 BA26 BA35 CC01 EA01 EA02 EA16 3H053 AA03 AA25 AA26 BC01 DA01 DA02 DA12

Claims (8)

【特許請求の範囲】[Claims] 【請求項1】 流体が流れると共に周方向に分割されて
いない本管部と該本管部から上方に分岐するようにして
突出する分岐管部とを備えたT型管、 前記分岐管部に設けられ前記分岐管部を開閉する開閉
弁、 前記分岐管部の上端に接合される弁蓋、ならびに、 該弁蓋および前記分岐管部における開閉弁よりも弁蓋側
に収容されると共に前記本管部内を横断して前記本管部
に流れる流体を閉塞する仕切弁体を備えた仕切弁装置。
1. A T-shaped pipe comprising: a main pipe part through which a fluid flows and which is not divided in a circumferential direction; and a branch pipe part protruding from the main pipe part so as to branch upward. An on-off valve provided to open and close the branch pipe portion; a valve lid joined to an upper end of the branch pipe portion; and the bookcase accommodated on the valve lid side of the valve lid and the on-off valve in the branch pipe portion. A gate valve device comprising a gate valve body for closing a fluid flowing through the main pipe part across the pipe part.
【請求項2】 流体が流れると共に周方向に分割されて
いない本管部と該本管部から上方に分岐するようにして
突出する分岐管部とを備えたT型管、ならびに、 前記分岐管部に設けられ前記分岐管部を開閉する開閉弁
を備え、 前記分岐管部の開口端から仕切弁体を挿入した際に、該
仕切弁体が前記分岐管部内を下方に移動して前記本管部
の内面に圧接することができるように前記分岐管部が形
成されている弁箱装置。
2. A T-shaped pipe comprising: a main pipe part through which fluid flows and which is not divided in the circumferential direction; and a branch pipe part protruding from the main pipe part so as to branch upward, and the branch pipe. An opening / closing valve provided in the section to open and close the branch pipe section. When a gate valve body is inserted from an open end of the branch pipe section, the gate valve body moves downward in the branch pipe section to move the book. A valve box device in which the branch pipe portion is formed so as to be able to press against the inner surface of the pipe portion.
【請求項3】 請求項2において、 前記分岐管部における前記仕切弁が移動する内幅が前記
本管部の内径以上に設定されている弁箱装置。
3. The valve box device according to claim 2, wherein an inner width of the branch pipe portion in which the gate valve moves is set to be equal to or larger than an inner diameter of the main pipe portion.
【請求項4】 請求項2において、 前記仕切弁体が移動する分岐管部の平面断面形状が略四
角形に形成されている弁箱装置。
4. The valve box device according to claim 2, wherein a planar cross-sectional shape of the branch pipe portion through which the gate valve body moves is formed in a substantially rectangular shape.
【請求項5】 請求項2において、 前記分岐管部には、少なくとも閉弁時の前記開閉弁の収
容スペースが設けられている弁箱装置。
5. The valve box device according to claim 2, wherein the branch pipe portion has at least a space for accommodating the on-off valve when the valve is closed.
【請求項6】 請求項2において、 前記分岐管部には前記開閉弁の弁箱部が形成され、 該弁箱部を含む前記分岐管部が前記本管部と一体成型さ
れている弁箱装置。
6. The valve box according to claim 2, wherein a valve box section of the on-off valve is formed in the branch pipe section, and the branch pipe section including the valve box section is integrally formed with the main pipe section. apparatus.
【請求項7】 請求項2において、 前記分岐管部には前記開閉弁により仕切られた2つの空
間を接続するバイパス配管が設けられ、 該バイパス配管には該バイパス配管を開閉するバイパス
弁が設けられている弁箱装置。
7. The bypass pipe according to claim 2, wherein the branch pipe is provided with a bypass pipe connecting two spaces partitioned by the on-off valve, and the bypass pipe is provided with a bypass valve for opening and closing the bypass pipe. Valve box equipment.
【請求項8】 請求項2において、 前記分岐管部の開口端にはフランジが設けられ、該フラ
ンジには栓が取り付けられて前記分岐管部の開口端が閉
塞されている弁箱装置。
8. The valve box device according to claim 2, wherein a flange is provided at an open end of the branch pipe portion, and a plug is attached to the flange to close an open end of the branch pipe portion.
JP11202856A 1999-07-16 1999-07-16 Gate valve device and valve box device Pending JP2001027349A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11202856A JP2001027349A (en) 1999-07-16 1999-07-16 Gate valve device and valve box device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11202856A JP2001027349A (en) 1999-07-16 1999-07-16 Gate valve device and valve box device

Publications (1)

Publication Number Publication Date
JP2001027349A true JP2001027349A (en) 2001-01-30

Family

ID=16464338

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11202856A Pending JP2001027349A (en) 1999-07-16 1999-07-16 Gate valve device and valve box device

Country Status (1)

Country Link
JP (1) JP2001027349A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2011043228A (en) * 2009-08-24 2011-03-03 Maezawa Kyuso Industries Co Ltd Branch valve
JP2015034604A (en) * 2013-08-09 2015-02-19 コスモ工機株式会社 Gate valve
JP2016017608A (en) * 2014-07-10 2016-02-01 コスモ工機株式会社 Pipe unit
JP2017067295A (en) * 2013-12-11 2017-04-06 コスモ工機株式会社 Valve device mounting structure, valve device mounting method, and valve device de-mounting method

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2011043228A (en) * 2009-08-24 2011-03-03 Maezawa Kyuso Industries Co Ltd Branch valve
JP2015034604A (en) * 2013-08-09 2015-02-19 コスモ工機株式会社 Gate valve
JP2017067295A (en) * 2013-12-11 2017-04-06 コスモ工機株式会社 Valve device mounting structure, valve device mounting method, and valve device de-mounting method
JP2016017608A (en) * 2014-07-10 2016-02-01 コスモ工機株式会社 Pipe unit

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