JP3099084B2 - Piping method and valve device, closing lid, water leak inspection tool - Google Patents
Piping method and valve device, closing lid, water leak inspection toolInfo
- Publication number
- JP3099084B2 JP3099084B2 JP11058608A JP5860899A JP3099084B2 JP 3099084 B2 JP3099084 B2 JP 3099084B2 JP 11058608 A JP11058608 A JP 11058608A JP 5860899 A JP5860899 A JP 5860899A JP 3099084 B2 JP3099084 B2 JP 3099084B2
- Authority
- JP
- Japan
- Prior art keywords
- valve
- water
- valve box
- pressure reducing
- communication hole
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Landscapes
- Valve Housings (AREA)
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、例えば集合住宅の
水道用の元管から各家庭内に引き込まれた給水管に蛇口
や給湯機等を配管接続する配管方法及び、これに使用す
る弁装置等に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a piping method for connecting a faucet, a water heater and the like to a water supply pipe drawn into each home from a water supply main pipe of an apartment house, and a valve device used therefor. And so on.
【０００２】[0002]
【従来の技術】図９は、集合住宅に於ける各家庭の水道
配管作業の順序を説明する工程図であり、同図に示す
（イ），（ロ），（ハ）の順序で配管作業がされる。
（イ）に示す仮配管工程では、元管(11)から各家庭内に
引き込んだ給水管(13)に、上流側から止水栓(15)，第１
補足管(17)，第２補足管(19)，給湯機(21)及び給湯蛇口
(23)が、この順序で下流側に向けて順次接続される。
又、給湯機(21)と並列に給水蛇口(25)が接続される。
尚、第１補足管(17)は最終工程で接続される後述の減圧
弁(31)に代えて接続するものであり、又、第２補足管(1
9)は最終工程で接続される後述の流量メーター(33)に代
えて接続するものであり、これら第１，第２補足管(17)
(19)としては、いずれも単純な円筒状の通水パイプが採
用されている。2. Description of the Related Art FIG. 9 is a process chart for explaining the sequence of water plumbing work in each home in an apartment house, and the plumbing work is performed in the order of (a), (b) and (c) shown in FIG. Is done.
In the temporary piping process shown in (a), the water stop pipe (15) from the upstream side is connected to the water supply pipe (13) drawn into each home from the main pipe (11).
Supplementary pipe (17), second supplementary pipe (19), water heater (21) and hot water tap
(23) are sequentially connected downstream in this order.
A water supply faucet (25) is connected in parallel with the water heater (21).
The first supplementary pipe (17) is connected in place of a pressure reducing valve (31) described later, which is connected in the final step.
9) is connected in place of a flow meter (33) described later, which is connected in the final step, and these first and second supplementary pipes (17) are connected.
As (19), a simple cylindrical water pipe is used.
【０００３】（ロ）に示す検査工程では、止水栓(15)を
閉じた後に上記第１補足管(17)に代えて検査用のＴ型の
分岐継ぎ手(27)を接続すると共に、これに接続した加圧
器(99)によって給水回路内の圧力を上昇させ、これによ
り、該給水回路の水漏れ検査を行う。又、上記加圧器(9
9)に代えて図示しない開閉バルブを接続すると共に、該
開閉バルブと前記止水栓(15)を開放することによって、
該分岐継ぎ手(27)の上流側に溜ったゴミ等を水道水と共
に排出して該回路内を洗浄する。In the inspection step shown in (b), after closing the water stopcock (15), a T-shaped branch joint (27) for inspection is connected in place of the first supplementary pipe (17), and The pressure in the water supply circuit is increased by a pressurizer (99) connected to the water supply circuit, thereby performing a water leak test on the water supply circuit. Also, the pressurizer (9
By connecting an on-off valve (not shown) instead of 9) and opening the on-off valve and the water stopcock (15),
The dust and the like accumulated on the upstream side of the branch joint (27) are discharged together with tap water to wash the inside of the circuit.
【０００４】最後に、（ハ）に示すように、上記（ロ）
の検査工程で接続されていた分岐継ぎ手(27)と第２補足
管(19)に代えて減圧弁(31)と流量メーター(33)を接続
し、その後、止水栓(15)を開放する。これにより、配管
作業の全工程が終了する。[0004] Finally, as shown in (c), (b)
A pressure reducing valve (31) and a flow meter (33) are connected in place of the branch joint (27) and the second supplementary pipe (19) that were connected in the inspection step, and then the water stopcock (15) is opened. . Thereby, all the steps of the piping work are completed.
【０００５】[0005]
【発明が解決しようとする課題】しかしながら、上記従
来の配管方法では、減圧弁(31)に代えて第１補足管(17)
を暫定的に接続する作業や、該第１補足管(17)に代えて
分岐継ぎ手(27)を接続し直す作業が必要となり、配管作
業に手間が掛かると言う問題があった。 ［配管方法の発明］ 〈Ａ１項〉本発明は、かかる点に鑑みて成されたもの
で、『元管(11)から各家庭内に分岐させた給水回路に、
止水栓(15)，減圧弁(31)，流量メーター(33)及び給水蛇
口(25)をこの順序で上流側から配設する配管方法』に於
いて、減圧弁(31)の配設部に第１補足管(17)や分岐継ぎ
手(27)を暫定的に取付ける作業を不要にし、これによ
り、配管作業を効率化できるようにすることを課題とす
る。However, in the above conventional piping method, the first supplementary pipe (17) is used instead of the pressure reducing valve (31).
Tentatively, and the work of reconnecting the branch joint (27) in place of the first supplementary pipe (17) is required, which causes a problem that the piping work is troublesome. [Invention of plumbing method] <A1> The present invention has been made in view of the above point, and has been described in the case of a "water supply circuit branched from a main pipe (11) into each home,
Water stopcock (15), pressure reducing valve (31), flow meter (33) and water supply faucet (25) in this order from the upstream side. It is another object of the present invention to eliminate the need for provisionally attaching the first supplementary pipe (17) and the branch joint (27), thereby improving the efficiency of piping work.
【０００６】[0006]
【課題を解決するための手段】上記課題を解決する為の
本発明の技術的手段は、『前記減圧弁(31)は、通水路が
貫通した弁箱と、該弁箱の外面から前記通水路に繋がる
連通孔(45)に接続され且つ前記弁箱に形成された結合部
に取り外し可能状態に結合される第１被結合部を具備す
る減圧弁機構ユニット(5) から構成されると共に、前記
第１被結合部と同一構造を有する第２被結合部を備え且
つ前記連通孔(45)が前記弁箱外面に開放する開口を閉塞
する閉塞蓋(8) と、前記第１被結合部と同一構造を有す
る第３被結合部を備え且つ前記連通孔(45)に接続される
水漏れ検査用具(9) とを準備し、前記第２被結合部と前
記結合部を結合させることにより前記連通孔(45)の前記
開口を前記閉塞蓋(8) で閉塞した前記弁箱を、前記減圧
弁(31)の接続予定位置に接続すると共に該弁箱の上流側
及び下流側に前記止水栓(15)及び前記給水蛇口(25)等を
配管接続する仮配管工程と、前記第３被結合部と前記結
合部を結合させることにより前記閉塞蓋(8) に代えて前
記水漏れ検査用具(9) を前記連通孔(45)に接続固定して
水漏れ検査を行う検査工程と、前記第１被結合部と前記
結合部を結合させることにより前記水漏れ検査用具(9)
に代えて前記減圧弁機構ユニット(5) を前記連通孔(45)
に接続固定する最終工程と、を実行する』ことである。The technical means of the present invention for solving the above-mentioned problems is as follows: "The pressure reducing valve (31) is provided with a valve box having a water passage penetrating therethrough, and an external surface of the valve box which is provided with the communication port. A pressure reducing valve mechanism unit (5) connected to a communication hole (45) connected to the water channel and having a first coupled portion detachably coupled to a coupling portion formed in the valve box; A closing lid (8) comprising a second connected part having the same structure as the first connected part, and closing the opening in which the communication hole (45) opens to the outer surface of the valve box; A water leak inspection tool (9) having a third coupled portion having the same structure as that of (1) and being connected to the communication hole (45) is prepared, and the second coupled portion and the coupling portion are coupled. The valve box, in which the opening of the communication hole (45) is closed by the closing lid (8), is connected to a connection planned position of the pressure reducing valve (31). A temporary piping step of connecting the water stopcock (15) and the water supply faucet (25) and the like to the upstream and downstream sides of the valve box, and by connecting the third connected portion and the connecting portion. An inspection step of connecting and fixing the water leakage inspection tool (9) to the communication hole (45) in place of the closing lid (8) to perform a water leakage inspection, and coupling the first coupled portion and the coupling portion; The water leakage inspection tool (9)
The pressure reducing valve mechanism unit (5) is replaced with the communication hole (45).
And the final step of connection and fixation. "
【０００７】次に、上記技術的手段の作用を説明する。
先ず、弁箱の構成壁に貫設された連通孔(45)が弁箱外面
に開放する開口を閉塞蓋(8) で閉塞する。このとき、弁
箱の結合部に取り外し可能に取付けられる減圧弁ユニッ
ト(5) の第１被結合部と前記閉塞蓋(8) の第２被結合部
が同一構造になっているから、閉塞蓋(8) を弁箱の連通
孔(45)部分に取付け固定することができる。この状態
で、下流側の給湯蛇口(25)等の配管作業を行うと、仮配
管工程の作業が終了する。Next, the operation of the above technical means will be described.
First, a communication hole (45) penetrating through a constituent wall of the valve box closes an opening opened to the outer surface of the valve box with a cover (8). At this time, the first coupled portion of the pressure reducing valve unit (5) detachably attached to the coupling portion of the valve box and the second coupled portion of the closing lid (8) have the same structure. (8) can be attached and fixed to the communication hole (45) of the valve box. In this state, when the piping work of the hot water supply faucet (25) on the downstream side is performed, the work of the temporary piping process is completed.
【０００８】次に、上記閉塞蓋(8) に代えて、水漏れ検
査用具(9) を弁箱の連通孔(45)に接続固定する。このと
き、水漏れ検査用具(9) の第３被結合部は減圧弁機構ユ
ニット(5) の第１被結合部と同一構造を有しているか
ら、上記閉塞蓋(8) と同様に水漏れ検査用具(9) を弁箱
の連通孔(45)部分に取付け固定することができる。そし
て、この状態で上記水漏れ検査用具(9) を利用して給水
回路の水漏れ検査を行う。Next, instead of the closing lid (8), a water leak inspection tool (9) is connected and fixed to the communication hole (45) of the valve box. At this time, since the third connected portion of the water leakage inspection tool (9) has the same structure as the first connected portion of the pressure reducing valve mechanism unit (5), the water is connected similarly to the closing lid (8). The leak inspection tool (9) can be attached and fixed to the communication hole (45) of the valve box. Then, in this state, a water leak test of the water supply circuit is performed by using the water leak test tool (9).
【０００９】次に、上記水漏れ検査用具(9) に代えて減
圧弁機構ユニット(5) を弁箱に取付ける。即ち、弁箱の
構成壁の連通孔(45)に減圧弁機構ユニット(5) を接続し
た状態で、該減圧弁機構ユニット(5) の第１被結合部と
弁箱の結合部を結合し、これにより、弁箱に減圧弁機構
ユニット(9) を取付け固定する。これにより、前記弁箱
とこれに取付けられた減圧弁機構ユニット(9) によって
減圧弁(31)が構成され、これにより、止水栓(15)から減
圧弁(31)を経て最下流の給水蛇口(25)に繋がる給水回路
が形成されて配管作業が完了する。Next, a pressure reducing valve mechanism unit (5) is attached to the valve box instead of the water leak inspection tool (9). That is, in a state where the pressure reducing valve mechanism unit (5) is connected to the communication hole (45) of the constituent wall of the valve box, the first connected portion of the pressure reducing valve mechanism unit (5) is connected to the connecting portion of the valve box. Thereby, the pressure reducing valve mechanism unit (9) is attached and fixed to the valve box. As a result, the valve box and the pressure reducing valve mechanism unit (9) attached thereto constitute a pressure reducing valve (31), whereby the most downstream water supply from the water stopcock (15) via the pressure reducing valve (31) is performed. The water supply circuit connected to the faucet (25) is formed, and the piping work is completed.
【００１０】[0010]
【発明の効果】上記発明は次の特有の効果を有する。減
圧弁(31)の配設予定位置へ接続した弁箱をそのまま利用
して検査工程及び最終工程の配管作業を行うことができ
るから、上記各工程毎に取り替える第１補足管(17)や分
岐継ぎ手(27)を利用する既述従来の配管作業に比べ、配
管作業が効率化できる。 〈Ａ２項〉前記１項に於いて、『前記弁箱に於ける前記
連通孔(45)と、前記流量メーター(33)が配設されるメー
タ配設位置との間の給水回路を手動で開閉する洗浄用開
閉弁(7) を前記仮配管工程で接続する』場合には、前記
弁箱の上流側給水回路内のゴミを外部に排出する洗浄作
業を適切に行うことができる。即ち、連通孔(45)が弁箱
外面に開放する開口を開放状態（閉塞蓋(8) を弁箱に取
付けない状態）にすると共に、前記洗浄用開閉弁(7) を
閉じて前記止水栓(15)を開放すると、開放状態にある止
水栓(15)から供給される水道水が開放状態にある前記弁
箱の連通孔(45)を介して外部に流出する。従って、弁箱
の上流側配管内に溜ったゴミが水道水と共に上記連通孔
(45)から外部に排出され、上記配管内の洗浄作業が行え
る。尚、この洗浄作業時には、洗浄用開閉弁(7) は閉状
態に維持されているから、その下流側の流量メータ(33)
側に上記ゴミが流れ込むことがない。The present invention has the following specific effects. Since the piping work of the inspection process and the final process can be performed using the valve box connected to the position where the pressure reducing valve (31) is to be disposed, the first supplementary pipe (17) to be replaced for each of the above processes and the branch Piping work can be made more efficient than the above-mentioned conventional piping work using the joint (27). <A2> In the above-mentioned item 1, it may be described that "the water supply circuit between the communication hole (45) in the valve box and the meter disposing position where the flow meter (33) is disposed is manually operated. In the case where the cleaning on-off valve (7) that opens and closes is connected in the temporary piping process, it is possible to appropriately perform a cleaning operation of discharging dust in the upstream water supply circuit of the valve box to the outside. That is, the opening in which the communication hole (45) is opened to the outer surface of the valve box is opened (a state in which the closing lid (8) is not attached to the valve box), and the washing on-off valve (7) is closed to close the water stoppage. When the stopper (15) is opened, tap water supplied from the open water stopcock (15) flows out through the communication hole (45) of the valve box in the open state. Therefore, the garbage collected in the piping on the upstream side of the valve box may not be removed from the communication hole together with the tap water.
It is discharged to the outside from (45) and the inside of the pipe can be cleaned. During the cleaning operation, the cleaning on-off valve (7) is maintained in the closed state.
The above refuse does not flow to the side.
【００１１】尚、この洗浄作業時には、前記弁箱の前記
連通孔(45)からそのまま水道水を排水させてもよいが、
前記連通孔(45)に排水ホース等を接続し、該排水ホース
を介して配管内の水を排水してもよい。 ［弁装置、閉塞蓋、及び、水漏れ検査用具の発明］ 〈Ｂ１項〉In this cleaning operation, tap water may be directly drained from the communication hole (45) of the valve box.
A drain hose or the like may be connected to the communication hole (45), and the water in the pipe may be drained through the drain hose. [Invention of valve device, closing lid, and water leakage inspection tool] <Section B1>
【００１２】[0012]
【課題を解決するための手段】前述した課題を解決する
ための弁装置の発明の技術的手段は、『通水路が貫通し
た弁箱と、該弁箱の外面から前記通水路に繋がる連通孔
(45)に接続され且つ前記弁箱に形成された結合部に取り
外し可能状態に結合される第１被結合部を具備する減圧
弁機構ユニット(5) を備えた弁装置において、前記弁箱
に於ける前記減圧弁機構ユニット(5) の配設部より上流
の前記通水路内に止水栓(15)を配設し、前記減圧弁機構
ユニット(5) に於ける前記第１被結合部と同一構造の第
２被結合部を具備する閉塞蓋(8) が前記減圧弁機構ユニ
ット(5) と選択的に前記連通孔(45)に取付けられる』こ
とである。このものでは、請求項１の発明の実施に適し
た弁装置が得られると共に、止水栓(15)と減圧弁機構ユ
ニット(5) が共通の弁箱に設けられているから、これら
を別々に配管する作業に比べて該配管時の作業性が向上
する。 〈Ｂ２項〉前記Ｂ１項に於いて、『前記弁箱の外部と前
記通水路を繋ぐように該弁箱の構成壁に貫設されたスト
レーナ装着孔から前記通水路内に挿抜可能に挿入され、
且つ、前記通水路を流れる水のゴミを捕集するストレー
ナが設けられた』ものでは、弁箱に形成された通水路を
流れる水中のゴミがストレーナで捕集できると共に、該
ストレーナで捕集されたゴミの量が多くなったときに
は、該ストレーナを前記ストレーナ装着孔から取り外し
てこれを洗浄することにより、前記捕集したゴミを捨て
ることができる。従って、下流側に接続された流量メー
タにゴミが流入することがなく、該流量メータが作動不
良を起こす心配が少なくなる。 〈Ｂ３項〉『弁箱を貫通する通水路から前記弁箱の外面
に繋がる連通孔(45)の前記弁箱外面側の開口を閉塞する
閉塞蓋(8) であって、前記連通孔(45)に接続することに
よって前記弁箱と共に減圧弁(31)を構成し且つ前記弁箱
に形成された結合部に取り外し可能状態に結合される第
１被結合部を具備する減圧弁機構ユニット(5) の、前記
第１被結合部と同一構造を有する第２被結合部を備えて
いる閉塞蓋』では、上記Ａ１項の発明の仮配管工程を実
行する際に、減圧弁(31)の配設位置に設けられた弁箱の
側壁の連通孔(45)を閉塞状態に維持することができる。
即ち、弁箱の結合部に第１被結合部で結合される減圧弁
機構ユニット(5) に代えて、前記第１被結合部と同一構
造の第２被結合部を具備する閉塞蓋(8) を前記結合部に
固定する。これにより、該閉塞蓋(8) によって前記連通
孔(45)を閉塞状態に維持することができる。 〈Ｂ４項〉『弁箱を貫通する通水路から前記弁箱の外面
に繋がる連通孔(45)に接続され、且つ前記連通孔(45)内
を外部に繋げる検査用貫通路が形成された水漏れ検査用
具(9) であって、前記連通孔(45)に接続することによっ
て前記弁箱と共に減圧弁(31)を構成し且つ前記弁箱に形
成された結合部に取り外し可能状態に結合される第１被
結合部を具備する減圧弁機構ユニット(5) の、前記第１
被結合部と同一構造を有する第３被結合部と、前記検査
用貫通路の途中から分岐する分岐回路に接続された水圧
計と、前記検査用貫通路からの前記分岐回路の分岐点と
前記検査用貫通路が前記外部に開放する開口の間の通路
を手動開閉する検査コックと、を具備する』ものでは、
上記Ａ１項の発明の検査工程を実行する水漏れ検査用具
を提供することができる。即ち、検査工程においては、
弁箱の連通孔(45)に上記構成の水漏れ検査用具を接続す
ると共に、減圧弁機構ユニット(5) の第１被結合部と同
一構造の第３被結合部を弁箱の結合部に結合する。そし
て、弁箱の連通孔(45)と外部を繋ぐ検査用貫通路の該外
側の端部に、別途用意した、加圧器を接続すると共に検
査コックを開き、その後、前記加圧器を作動させて弁箱
内の通水路の水圧を上昇させる。その後、検査コックを
閉じると、この検査コックの配設部から弁箱内の通水路
を介して給水蛇口等に繋がる給水回路の水圧が上記水圧
計で測定される。そして、この測定水圧が経時的に低下
するか否かを判断することによって、前記給水回路に水
漏れが生じているか否かを判断することができ、これに
より、水漏れ検査が行える。Means for Solving the Problems The technical means of the invention of the valve device for solving the above-mentioned problem is as follows: "a valve box having a water passage penetrated therethrough; and a communication hole connected from the outer surface of the valve box to the water passage.
(45) and a pressure reducing valve mechanism unit (5) having a first coupled portion detachably coupled to a coupling portion formed in the valve box. A water stopcock (15) is disposed in the water passage upstream of the disposing portion of the pressure reducing valve mechanism unit (5) in the pressure reducing valve mechanism unit (5); And a closing lid (8) having a second coupled portion having the same structure as that described above is selectively attached to the communication hole (45) with the pressure reducing valve mechanism unit (5). " In this case, a valve device suitable for carrying out the invention of claim 1 can be obtained, and the water stopcock (15) and the pressure reducing valve mechanism unit (5) are provided in a common valve box. The workability at the time of the piping is improved as compared with the work of piping at the same time. <Item B2> In the above Item B1, "the valve can be inserted into and removed from the water passage through a strainer mounting hole penetrating through a component wall of the valve box so as to connect the outside of the valve box to the water passage. ,
In addition, a strainer for collecting water debris flowing through the water passage is provided ", and the water debris flowing through the water passage formed in the valve box can be collected by the strainer and collected by the strainer. When the amount of garbage becomes large, the collected garbage can be discarded by removing the strainer from the strainer mounting hole and washing it. Therefore, dust does not flow into the flow meter connected to the downstream side, and the flow meter is less likely to malfunction. <B3>"A closing lid (8) for closing an opening on the outer surface side of the valve box of a communication hole (45) connecting a water passage penetrating the valve box to the outer surface of the valve box, wherein the communication hole (45 ) Together with the valve box to constitute a pressure reducing valve (31), and a pressure reducing valve mechanism unit (5) having a first coupled portion detachably coupled to a coupling portion formed in the valve box. ) Of the closing lid provided with the second connected part having the same structure as the first connected part ”, the arrangement of the pressure reducing valve (31) is performed when the provisional piping process of the above-mentioned item A1 is executed. The communication hole (45) in the side wall of the valve box provided at the installation position can be maintained in a closed state.
That is, instead of the pressure reducing valve mechanism unit (5) connected to the connecting portion of the valve box by the first connected portion, the closing lid (8) having the second connected portion having the same structure as the first connected portion. ) Is fixed to the joint. Thus, the communication hole (45) can be maintained in a closed state by the closing lid (8). <B4>"Water having a test through-passage connected to a communication hole (45) connected to an outer surface of the valve box from a water passage penetrating the valve box and connecting the inside of the communication hole (45) to the outside. A leak inspection tool (9), which forms a pressure reducing valve (31) together with the valve box by being connected to the communication hole (45), and is removably connected to a connecting portion formed in the valve box. The pressure reducing valve mechanism unit (5) having a first coupled portion,
A third coupled portion having the same structure as the coupled portion, a water pressure gauge connected to a branch circuit branching from the middle of the test through-passage, a branch point of the branch circuit from the test through-passage, and An inspection cock that manually opens and closes a passage between the openings through which the inspection through-path opens to the outside. ''
A water leakage inspection tool that performs the inspection step of the invention of the above A1 can be provided. That is, in the inspection process,
The water leakage inspection tool having the above configuration is connected to the communication hole (45) of the valve box, and a third connected portion having the same structure as the first connected portion of the pressure reducing valve mechanism unit (5) is connected to the connecting portion of the valve box. Join. Then, a separately prepared pressurizer is connected and the inspection cock is opened at the outer end of the test through-hole connecting the communication hole (45) of the valve box and the outside, and then the pressurizer is operated. Increase the water pressure in the water passage in the valve box. Thereafter, when the inspection cock is closed, the water pressure of the water supply circuit connected to the water supply faucet or the like from the arrangement portion of the inspection cock via the water passage in the valve box is measured by the water pressure gauge. Then, by determining whether or not the measured water pressure decreases with time, it is possible to determine whether or not a water leak has occurred in the water supply circuit, thereby performing a water leak test.
【００１３】[0013]
【発明の実施の形態】以下、本願発明の実施の形態を、
図示例と共に説明する。図１は、本発明の実施の形態を
説明する弁装置(A) を用いた水道配管の概略図である。
上記弁装置(A) は、弁箱(4) とこれに着脱可能に装着さ
れた減圧弁機構ユニット(5) を具備していると共に、配
管作業時には、前記減圧弁機構ユニット(5) に代えて閉
塞蓋(8) や水漏れ検査用具(9) を選択的に弁箱(4) に取
付けられるようになっている。BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, embodiments of the present invention will be described.
This will be described together with the illustrated example. FIG. 1 is a schematic diagram of a water supply pipe using a valve device (A) for explaining an embodiment of the present invention.
The valve device (A) includes a valve box (4) and a pressure reducing valve mechanism unit (5) detachably mounted on the valve box (4), and replaces the pressure reducing valve mechanism unit (5) during piping work. Thus, the closure lid (8) and the water leak inspection tool (9) can be selectively attached to the valve box (4).
【００１４】以下、各部の詳細を説明する。 ［減圧弁機構ユニット(5) について］減圧弁機構ユニッ
ト(5) は、基板(59)とバネキャップ(58)とによて形成さ
れると共にダヤフラム(D) を内蔵したダイヤフラム室(5
7)と、前記基板(59)から突出するように設けられると共
に圧力応動機構を内蔵した絞り機構部(6) を具備してい
る。The details of each section will be described below. [Reducing Valve Mechanism Unit (5)] The reducing valve mechanism unit (5) is formed by a substrate (59) and a spring cap (58) and has a diaphragm chamber (5) containing a diaphragm (D).
7) and a throttle mechanism (6) provided so as to protrude from the substrate (59) and having a built-in pressure response mechanism.
【００１５】前記ダイヤフラム室(57)は、共に板金製の
皿状円板とした基板(59)と円錐台形状の中空体としたバ
ネキャップ(58)とを対向させて、これらの間にダヤフラ
ム(D) を介在させた状態で前記両者の周縁をカシメ止め
した構成であり、前記ダヤフラム(D) の上面に設けたバ
ネ受け(56)と前記バネキャップ(58)の上端筒部に螺合す
る調節ナット(55)との間に二次圧調節バネ(54)が介在さ
れている。そして、前記ダヤフラム(D) と基板(59)との
間の空室が二次圧室(53)となっている。In the diaphragm chamber (57), a substrate (59), which is a plate-shaped disc made of sheet metal, and a spring cap (58), which is a hollow body having a truncated cone shape, are opposed to each other. (D) is interposed, and the peripheral edges of the two are caulked, and are screwed to a spring receiver (56) provided on the upper surface of the diaphragm (D) and an upper end cylindrical portion of the spring cap (58). A secondary pressure adjusting spring (54) is interposed between the adjusting nut (55) and the adjusting nut (55). An empty space between the diaphragm (D) and the substrate (59) is a secondary pressure chamber (53).
【００１６】前記基板(59)の中央下面には雌ネジ部が形
成され、この雌ネジ部に絞り機構部(6) が螺合連設され
ている。 ＊絞り機構部(6) について 前記絞り機構部(6) は、中央にこれと同軸の軸挿通孔(6
1)を形成した円筒状体で、その胴部外周には、図２に示
すように、中程に第１環状凹溝(62)を設け、その上下に
第２環状凹溝(63)(63)を形成し、前記軸挿通孔(61)と前
記第１環状凹溝(62)とを連通するように連通孔(64)を設
けると共に、図１に示すように、前記軸挿通孔(61)に平
行で前記連通孔(64)から区画された複数の貫通孔を形成
して第２通路(65)としたものである。図２に示すよう
に、上方の第２環状凹溝(63)の更に上方には、環状の係
合溝部(66)が形成されており、その溝幅は、後述の係止
ピン(35)の線径より僅かに大きく設定されている。A female screw portion is formed on the lower surface of the center of the substrate (59), and a squeezing mechanism (6) is screwed and connected to the female screw portion. * About the throttle mechanism (6) The throttle mechanism (6) has a shaft insertion hole (6
As shown in FIG. 2, a first annular groove (62) is provided in the middle of the cylindrical body formed with 1), and the second annular groove (63) (63) ( 63), a communication hole (64) is provided so as to communicate the shaft insertion hole (61) and the first annular groove (62), and as shown in FIG. A plurality of through-holes parallel to 61) and partitioned from the communication hole (64) are formed to form a second passage (65). As shown in FIG. 2, an annular engagement groove (66) is formed further above the upper second annular concave groove (63), and the width of the groove is determined by a locking pin (35) described later. Is set slightly larger than the wire diameter.
【００１７】この絞り機構部(6) は金属製で、基板(59)
との螺合用の雄ネジ部を初め、各流路部が切削加工によ
って仕上げられている。そして、前記雄ネジ部を前記基
板(59)の中央の雌ネジ部に螺合し、シール用のＯリング
を所定の部位に介在させると、基板(59)との螺合部の気
密性が確保された状態に、絞り機構部(6) と基板(59)が
結合一体化される。そして、前記第２通路(65)は前記二
次圧室(53)と連通すると共に、その下端は絞り機構部
(6) の下端（又は、出口側配管接続部(2b)の上流側）の
空室(2c)に開放する。The diaphragm mechanism (6) is made of metal and has a substrate (59).
Each of the flow passage portions, including the male screw portion for screwing, is finished by cutting. Then, when the male screw portion is screwed into the female screw portion at the center of the substrate (59) and an O-ring for sealing is interposed at a predetermined portion, the airtightness of the screw portion with the substrate (59) is improved. In this state, the aperture mechanism (6) and the substrate (59) are combined and integrated. The second passage (65) communicates with the secondary pressure chamber (53), and the lower end thereof is a throttle mechanism.
(6) Open to the vacant room (2c) at the lower end (or upstream of the outlet side pipe connection part (2b)).
【００１８】＊出力軸(67)について 前記ダヤフラム(D) の下面中央部には出力軸(67)が連設
され、前記軸挿通孔(61)に挿通された前記出力軸(67)の
上端近傍に設けられる摺動弁(111) が前記軸挿通孔(61)
に摺動自在に嵌入している。前記摺動弁(111) は、軸挿
通孔(61)の上部に摺動自在に収容され、出力軸(67)の下
部は軸挿通孔(61)の内周面とは余裕のある状態で挿通
し、絞り機構部(6) の下端から下方に突出する。そし
て、その突出部には、出力弁(68)が連設され、この出力
弁(68)が後述するバネ(69)の付勢力で絞り機構部(6) の
下端に形成した弁座部(60)に対面している。 ［弁箱(4) について］弁箱(4) は、上半部に上下に貫通
する筒状のユニット保持部(41)（内部が既述連通孔(45)
となっている）を設け、このユニット保持部(41)の下端
開放部が空室(2c)を介して出口側配管接続部(2b)に連通
され、前記ユニット保持部(41)の胴部に胴部入口(42)を
設けてその上流側の入口側配管接続部(2a)に連通させた
構成であり、前記入口側配管接続部(2a)と前記胴部入口
(42)との間に止水栓(15)とその下流側の金網状ストレー
ナ(46)が挿入されている。そして、図４に示すように、
上記ストレーナ(46)は、弁箱(4) の側壁に貫設されたス
トレーナ装着孔(47)を介してその奥の通水路(40)に挿入
できるように着脱自在に取付けられている。即ち、弁箱
(4) の入口側配管接続部(2a)から出口側配管接続部(2b)
に繋がるように形成された通水路(40)の内壁には、上記
ストレーナ装着孔(47)の前方に位置する部分にジフラン
ジ(48)が周設されていると共に、該フランジ(48)には、
半球殻状のストレーナ(46)を先端に備えた筒体(49)が、
押え蓋(30)で押さえ付けられており、これにより、スト
レーナ(46)が装着状態に安定されている。尚、押え蓋(3
0)は、ビス(32)で弁箱(4) の側壁に取り外し可能に固定
されていると共に、筒体(49)の側壁には透孔(400) が穿
設されている。又、上記止水栓(15)は、図４に現れる操
作つまみ(12)で回動されて開閉される。Output shaft (67) An output shaft (67) is continuously provided at the center of the lower surface of the diaphragm (D), and the upper end of the output shaft (67) inserted through the shaft insertion hole (61). The sliding valve (111) provided near the shaft insertion hole (61)
Is slidably fitted in The sliding valve (111) is slidably housed in the upper part of the shaft insertion hole (61), and the lower part of the output shaft (67) has a margin with the inner peripheral surface of the shaft insertion hole (61). It is inserted and protrudes downward from the lower end of the throttle mechanism (6). An output valve (68) is connected to the projecting portion, and the output valve (68) is formed at the lower end of the throttle mechanism (6) by the urging force of a spring (69) described later. Facing 60). [About the valve box (4)] The valve box (4) is a cylindrical unit holding part (41) that penetrates vertically in the upper half (the inside is the communication hole (45) described above).
The unit holding portion (41) has a lower end open portion that communicates with the outlet side pipe connection portion (2b) through the empty room (2c), and a trunk portion of the unit holding portion (41). A trunk inlet (42) is provided at the upstream side and communicated with an inlet-side piping connection (2a) on the upstream side, and the inlet-side piping connection (2a) and the trunk inlet are provided.
A water stopcock (15) and a wire mesh strainer (46) on the downstream side are inserted between the water stopcock (15). And, as shown in FIG.
The strainer (46) is detachably mounted so as to be inserted into a water passage (40) at the back of the valve box (4) through a strainer mounting hole (47) provided through the side wall of the valve box (4). That is, valve box
(4) From the inlet side pipe connection (2a) to the outlet side pipe connection (2b)
On the inner wall of the water passage (40) formed so as to be connected to a diflange (48) is provided around a portion located in front of the strainer mounting hole (47), and the flange (48) has ,
A cylinder (49) with a hemispherical shell-shaped strainer (46) at the tip,
The strainer (46) is held down by the presser lid (30), so that the strainer (46) is stably mounted. In addition, presser lid (3
Numeral 0) is detachably fixed to the side wall of the valve box (4) with screws (32), and a through hole (400) is formed in the side wall of the cylindrical body (49). Further, the water stopcock (15) is opened and closed by being rotated by an operation knob (12) shown in FIG.
【００１９】又、図１に示すように、ユニット保持部(4
1)の下方の空室(2c)の底壁と出力弁(68)との間に、これ
を閉方向に付勢するバネ(69)が介在されていると共に、
該バネ(69)の配設部と出口側配管接続部(2b)の間に形成
された弁座口(71)を開閉するリフト弁式の弁体(72)（図
４参照）は、弁箱(4) の側壁に取付けられたナット部材
(73)に螺入された弁軸(74)の先端にビス(75)で固定され
ている。従って、ナット部材(73)に対して弁軸(74)をね
じ込むと、弁体(72)で弁座口(71)が閉塞される。そし
て、本実施の形態では、上記弁軸(74)，弁体(72)，弁座
口(71)によって、既述Ａ２項の発明特定事項として記載
した洗浄用開閉弁(7) が構成されている。As shown in FIG. 1, the unit holding portion (4
Between the bottom wall of the vacant chamber (2c) below 1) and the output valve (68), a spring (69) for urging the valve in the closing direction is interposed,
A lift valve type valve body (72) (see FIG. 4) for opening and closing a valve seat (71) formed between the arrangement portion of the spring (69) and the outlet side pipe connection portion (2b) includes a valve. Nut member mounted on the side wall of the box (4)
It is fixed to the tip of the valve shaft (74) screwed into (73) with screws (75). Therefore, when the valve shaft (74) is screwed into the nut member (73), the valve seat (71) is closed by the valve body (72). In the present embodiment, the valve shaft (74), the valve element (72), and the valve seat (71) constitute the cleaning on-off valve (7) described as the above-mentioned item A2 of the invention. ing.
【００２０】前記ユニット保持部(41)の内周面には、そ
の中央部に前記胴部入口(42)に連通する外周凹溝(43)が
設けられていると共に、該外周凹溝(43)の上下幅は一定
に設定されている。前記ユニット保持部(41)の上端開放
部近傍には、図３に示すように互いに平行な一対のピン
孔(44)(44)（既述、Ａ１項の発明特定事項たる弁箱(4)
側の結合部に対応する）が穿設されており、該ピン孔(4
4)(44)に挿通された係止ピン(35)によって、減圧弁機構
ユニット(5) が抜止め状態に弁箱(4) に取付けられるよ
うになっている。An outer peripheral groove (43) communicating with the body inlet (42) is provided at the center of the inner peripheral surface of the unit holding portion (41), and the outer peripheral groove (43) is provided. The upper and lower widths are set constant. As shown in FIG. 3, a pair of pin holes (44) and (44) parallel to each other are provided near the upper end opening of the unit holding portion (41).
(Corresponding to the joint on the side) is drilled and the pin hole (4
4) The pressure reducing valve mechanism unit (5) is attached to the valve box (4) in a locked state by the locking pin (35) inserted through the (44).
【００２１】尚、本実施の形態では、前記弁箱(4) は既
述Ｂ１項及びＢ２項に記載した発明特定事項たる弁箱に
対応する。一方、弁箱(4) のうち、減圧弁機構ユニット
(5)の装着部近傍、即ち、弁箱(4) に於ける、ストレー
ナ(46)と洗浄用開閉弁(7) の間の部分が既述Ａ１項，Ａ
２項，Ｂ３項，Ｂ４項の発明特定事項たる弁箱に対応
し、該弁箱と減圧弁機構ユニット(5) の組み合わせが既
述Ａ１項，Ｂ３項，及びＢ４項の減圧弁(31)に対応す
る。 ［係止ピン(35)について］前記係止ピン(35)は、図３に
示すように、全体としてＵ時状に曲成されており、一対
の直線部(36)(36)の一端相互を結合部(37)によって一体
的に連結した構成であり、この直線部(36)(36)の間隔
は、上記ピン孔(44)(44)の間隔に合わせてある。 ［閉塞蓋(8) について］上記減圧弁機構ユニット(5) に
代えて弁箱(4) に取付ける閉塞蓋(8) は図５のように構
成されている。In the present embodiment, the valve box (4) corresponds to the valve box which is the invention-specifying matter described in the above-mentioned items B1 and B2. On the other hand, among the valve box (4), the pressure reducing valve mechanism unit
The portion near the mounting portion of (5), that is, the portion between the strainer (46) and the cleaning on-off valve (7) in the valve box (4) is described in the above-mentioned items A1, A
The combination of the valve box and the pressure-reducing valve mechanism unit (5) corresponds to the valve box which is the invention-specifying matter of the items 2, B3, and B4. Corresponding to [Regarding the Locking Pin (35)] As shown in FIG. 3, the locking pin (35) is bent in a U-shape as a whole, and one end of a pair of linear portions (36) (36) is connected to each other. Are connected integrally by a connecting portion (37), and the interval between the linear portions (36) (36) is matched with the interval between the pin holes (44) (44). [Closing Cover (8)] A closing cover (8) attached to a valve box (4) instead of the pressure reducing valve mechanism unit (5) is configured as shown in FIG.
【００２２】この閉塞蓋(8) は、弁箱(4) のユニット保
持部(41)内に挿入される一端閉塞の筒体(81)と、該筒体
(81)の閉塞端側の外周に張り出すフランジ(82)を具備し
ており、筒体(81)の外径は既述減圧弁機構ユニット(5)
を構成する円筒体状の絞り機構部(6) の胴部外周の直径
と一致している。又、上記筒体(81)には、前記絞り機構
部(6) の上部に位置する係合溝部(66)と同一寸法で同一
機能を発揮する環状凹溝(83)が周設されている。これに
より、減圧弁機構ユニット(5) を構成する円筒体状の絞
り機構部(6) の胴部に於ける係合溝部(66)の形成部近傍
（既述Ａ１項等に記載した発明特定事項たる第１被結合
部に対応する）と、閉塞蓋(8) の筒体(81)に於ける前記
環状凹溝(83)の近傍（既述Ａ１項等に記載した発明特定
事項たる第２被結合部に対応する）を同一構造にし、こ
れにより、閉塞蓋(8) と減圧弁機構ユニット(5) が選択
的に弁箱(4) に取付けられるようにしている。このもの
では、閉塞蓋(8) の筒体(81)を弁箱(4) のユニット保持
部(41)部分に挿入する（該ユニット保持部(41)の上端の
開口を閉塞する）と共に、該ユニット保持部(41)の側壁
から既述係止ピン(35)を差し込むと、該係止ピン(35)の
直線部(36)(36)が上記環状凹溝(83)に係合して該閉塞蓋
(8) が弁箱(4) に固定され、これにより、弁箱(4) のユ
ニット保持部(41)に対して弁圧弁機構ユニット(5) と閉
塞蓋(8) の何れか一方が選択的に装着できる。尚、上記
筒体(81)に於ける環状凹溝(83)の下方に周設された凹溝
(84)にはＯリング(85)が装着されており、閉塞蓋(8) を
弁箱(4) に取付けたときに、これらの境界部のシール性
が確保できるようにしている。 ［水漏れ検査用具(9) について］上記減圧弁機構ユニッ
ト(5) に代えて弁箱(4) に取付ける水漏れ検査用具(9)
は図６のように構成されている。The closing lid (8) includes a tubular body (81) which is inserted into the unit holding portion (41) of the valve box (4) and is closed at one end, and the tubular body (81).
(81) is provided with a flange (82) projecting to the outer periphery on the closed end side, and the outer diameter of the cylindrical body (81) is reduced by the pressure reducing valve mechanism unit (5) described above.
And the diameter of the outer periphery of the body of the cylindrical throttle mechanism (6). The cylindrical body (81) is provided with an annular groove (83) having the same dimensions and the same function as the engaging groove (66) located above the throttle mechanism (6). . Accordingly, the vicinity of the formation portion of the engagement groove (66) in the body of the cylindrical throttle mechanism (6) constituting the pressure reducing valve mechanism unit (5) (the invention specification described in the above-mentioned item A1 etc.) And the vicinity of the annular groove (83) in the cylindrical body (81) of the closing lid (8) (the invention specifying matter described in the above-mentioned item A1 etc.). (Corresponding to the two connected parts) have the same structure, whereby the closing lid (8) and the pressure reducing valve mechanism unit (5) can be selectively attached to the valve box (4). In this device, the tubular body (81) of the closing lid (8) is inserted into the unit holding portion (41) of the valve box (4) (to close the opening at the upper end of the unit holding portion (41)), and When the above-described locking pin (35) is inserted from the side wall of the unit holding portion (41), the linear portions (36) and (36) of the locking pin (35) engage with the annular groove (83). The closure lid
(8) is fixed to the valve box (4), whereby either the valve pressure valve mechanism unit (5) or the closing lid (8) is selected for the unit holding portion (41) of the valve box (4). It can be attached to. Incidentally, a concave groove provided under the annular concave groove (83) in the cylindrical body (81).
The (84) is provided with an O-ring (85) so that when the closing lid (8) is attached to the valve box (4), the sealing performance of these boundaries can be ensured. [About the water leak inspection tool (9)] The water leak inspection tool (9) to be attached to the valve box (4) instead of the pressure reducing valve mechanism unit (5)
Are configured as shown in FIG.
【００２３】この水漏れ検査用具(9) は、弁箱(4) のユ
ニット保持部(41)に挿入される筒体(91)と、該筒体(91)
の端部に螺合接続され且つ該筒体(91)内の検査用貫通路
(89)（弁箱(4) の通水路(40)と外部を繋ぐ通路）から分
岐する分岐路(88)に接続された水圧計(93)を具備する継
ぎ手(92)と、該継ぎ手(92)にナット(94)を介して接続れ
る検査コック(95)を具備し、該検査コック(95)は操作つ
まみ(96)で手動開閉できるように成っている。The water leak inspection tool (9) includes a tubular body (91) inserted into the unit holding portion (41) of the valve box (4), and the tubular body (91).
Of the test body, which is screwed to the end of
(89) A joint (92) including a water pressure gauge (93) connected to a branch passage (88) branching from a water passage (40) of the valve box (4) and the outside, and the joint ( An inspection cock (95) connected to the nut (94) via a nut (94) is provided, and the inspection cock (95) can be manually opened and closed by an operation knob (96).
【００２４】上記筒体(91)の外径は既述減圧弁機構ユニ
ット(5) を構成する円筒体状の絞り機構部(6) の胴部外
周の直径と一致している。又、上記筒体(91)には、前記
絞り機構部(6) の上部に位置する係合溝部(66)と同一寸
法で同一機能を発揮する環状凹溝(97)が周設されてい
る。これにより、減圧弁機構ユニット(5) を構成する円
筒体状の絞り機構部(6) の胴部に於ける係合溝部(66)の
形成部近傍（既述Ａ１項等に記載した発明特定事項たる
第１被結合部に対応する）と、水漏れ検査用具(9) の筒
体(91)に於ける前記環状凹溝(97)の近傍（既述Ａ１項等
に記載した発明特定事項たる既述第３被結合部に対応す
る）を同一構造にし、これにより、水漏れ検査用具(9)
と絞り機構部(6) が選択的に弁箱(4) に取付けられるよ
うにしている。このものでは、水漏れ検査用具(9) の筒
体(91)を弁箱(4) のユニット保持部(41)部分に挿入する
と共に、該ユニット保持部(41)の側壁から既述係止ピン
(35)を差し込むと、該係止ピン(35)の直線部(36)(36)が
上記環状凹溝(97)に係合して該水漏れ検査用具(9) が弁
箱(4) に固定され、これにより、弁箱(4) のユニット保
持部(41)に対して絞り機構部(6) と水漏れ検査用具(9)
の何れか一方が選択的に装着できる。 ［配管洗浄具について］上記減圧弁機構ユニット(5) に
代えて弁箱(4) に取付ける配管洗浄具(100) は図７のよ
うに構成されている。The outer diameter of the cylindrical body (91) matches the outer diameter of the body of the cylindrical throttle mechanism (6) constituting the pressure reducing valve mechanism unit (5). Further, the cylindrical body (91) is provided with an annular groove (97) having the same dimensions and the same function as the engaging groove (66) located above the throttle mechanism (6). . Accordingly, the vicinity of the formation portion of the engagement groove (66) in the body of the cylindrical throttle mechanism (6) constituting the pressure reducing valve mechanism unit (5) (the invention specification described in the above-mentioned item A1 etc.) And the vicinity of the annular groove (97) in the cylindrical body (91) of the water leakage inspection tool (9) (the invention specific items described in the above-mentioned item A1 etc.) (Corresponding to the third connected part described above) has the same structure, whereby the water leakage inspection tool (9)
And the throttle mechanism (6) can be selectively attached to the valve box (4). In this device, the tubular body (91) of the water leakage inspection tool (9) is inserted into the unit holding portion (41) of the valve box (4), and the above-described locking is performed from the side wall of the unit holding portion (41). pin
When the (35) is inserted, the linear portions (36) and (36) of the locking pin (35) engage with the annular groove (97), and the water leakage inspection tool (9) is attached to the valve box (4). The throttle mechanism (6) and the water leak inspection tool (9) are fixed to the unit holder (41) of the valve box (4).
Either one can be selectively mounted. [Piping Cleaning Tool] A pipe cleaning tool (100) attached to a valve box (4) instead of the pressure reducing valve mechanism unit (5) is configured as shown in FIG.
【００２５】この配管洗浄具(100) は、弁箱(4) のユニ
ット保持部(41)内に挿入される筒体(101) と、該筒体(1
01) に接続されたコック部(102) を具備し、該コック部
(102) に内蔵された開閉弁（図示せず）は操作つまみ(1
03) で開閉操作されるように成っている。このもので
は、筒体(101) の先端から他端の排水管接続ネジ(104)
に貫通する流路が内部に形成されており、該流路が前記
コック部(102) を構成する開閉弁で開閉される。The pipe cleaning tool (100) includes a tubular body (101) inserted into the unit holding portion (41) of the valve box (4), and the tubular body (1).
01) and a cock portion (102) connected to the cock portion.
The on-off valve (not shown) built in (102) has an operation knob (1
03) to open and close. In this case, a drain pipe connection screw (104) from the tip of the cylinder (101) to the other end is used.
A passage that penetrates the cock is formed therein, and the passage is opened and closed by an on-off valve that constitutes the cock (102).
【００２６】上記筒体(101) の外径は、既述減圧弁機構
ユニット(5) を構成する円筒体状の絞り機構部(6) の胴
部外周の直径と一致していると共に、該筒体(101) に
は、前記絞り機構部(6) の上部に位置する係合溝部(66)
と同一寸法で同一機能を発揮する環状凹溝(105) が周設
されている。これにより、これにより、配管洗浄具(10
0) が絞り機構部(6) と同様に弁箱(4) に取付けられる
ようにしている。 ［配管工事の実際について］配管工事の際には、仮配管
工程と、洗浄工程，検査工程及び最終工程が実行され、
洗浄工程，検査工程及び最終工程は、同じ作業時に連続
して実行される。The outer diameter of the cylindrical body (101) coincides with the diameter of the outer periphery of the body of the cylindrical throttle mechanism (6) constituting the pressure reducing valve mechanism unit (5). The engagement groove (66) located on the upper part of the throttle mechanism (6) is formed in the cylindrical body (101).
An annular concave groove (105) having the same dimensions and the same function as the above is circumferentially provided. As a result, the pipe cleaning tool (10
0) can be attached to the valve box (4) in the same manner as the throttle mechanism (6). [About actual piping work] In the case of piping work, a temporary piping process, a cleaning process, an inspection process, and a final process are executed.
The cleaning process, the inspection process, and the final process are continuously performed during the same operation.
【００２７】＊仮配管工程 先ず、図８に示すような仮配管を行う仮配管工程を実行
する。即ち、集合住宅の水道用の元管(11)から分岐させ
て各家庭内に引き込んだ給水管(13)に、弁箱(4) 及び閉
塞蓋(8) の結合体を接続し、これに続けて流量メーター
(33)と給水蛇口(25)をこの順序で下流側に順次配設す
る。又、給湯機(21)を前記給水蛇口(25)と並列接続す
る。尚、弁箱(4) に止水栓(15)や洗浄用開閉弁(7)が備
えられていない場合は、独立した止水栓(15)及び洗浄用
開閉弁(7) を前記弁箱(4) の上流側と下流側に各別に配
管接続する。* Temporary piping process First, a temporary piping process for performing temporary piping as shown in FIG. 8 is performed. That is, the combined body of the valve box (4) and the closure lid (8) is connected to the water supply pipe (13) that is branched from the water supply main pipe (11) of the apartment house and drawn into each home, and this is connected to this. Continue with flow meter
(33) and the water supply faucet (25) are sequentially arranged on the downstream side in this order. Also, a water heater (21) is connected in parallel with the water supply faucet (25). If the valve box (4) is not provided with a water stopcock (15) or a cleaning on-off valve (7), the independent water stopcock (15) and the cleaning on-off valve (7) are connected to the valve box. Connect pipes separately to the upstream side and downstream side of (4).
【００２８】弁箱(4) に閉塞蓋(8) を取付けるときに
は、弁箱(4) のユニット保持部(41)内に閉塞蓋(8) の筒
体(81)を圧入する。すると、既述したように、筒体(81)
の凹溝(84)に装着されたＯリング(85)がユニット保持部
(41)の内周に密着してシール性が確保される。次に、弁
箱(4) のユニット保持部(41)の側壁に形成されたピン孔
(44)(44)（図３参照）に係止ピン(35)の直線部(36)(36)
を挿入すると、該係止ピン(35)の直線部(36)(36)が閉塞
蓋(8) の筒体(81)外周に周設された環状凹溝(83)に係合
し、これにより、閉塞蓋(8) が弁箱(4) のユニット保持
部(41)部分に取付けられる。従って、該ユニット保持部
(41)内が閉塞蓋(8) で水密状態に閉塞される。When attaching the closing lid (8) to the valve box (4), the cylinder (81) of the closing lid (8) is pressed into the unit holding portion (41) of the valve box (4). Then, as described above, the cylindrical body (81)
The O-ring (85) attached to the groove (84) of the unit
The sealing property is secured by closely adhering to the inner periphery of (41). Next, a pin hole formed in the side wall of the unit holding portion (41) of the valve box (4)
(44) (44) (see FIG. 3), the straight portion (36) (36) of the locking pin (35)
When the lock pin (35) is inserted, the linear portions (36) (36) of the locking pin (35) engage with the annular groove (83) provided around the outer periphery of the cylindrical body (81) of the closing lid (8). Thereby, the closing lid (8) is attached to the unit holding portion (41) of the valve box (4). Therefore, the unit holding portion
The inside of (41) is closed in a watertight state by the closing lid (8).
【００２９】この仮配管が終了した状態では、元管(11)
から給水管(13)に供給される水道水は、該給水管(13)か
ら弁箱(4) の入口側配管接続部(2a)→開放状態にある止
水栓(15)→ストレーナ(46)配設部→ユニット保持部(41)
内→空室(2c)→出口側配管接続部(2b)→流量メーター(3
3)→給水蛇口(25)及び給湯機(21)等と続く給水回路に流
れる。 ＊洗浄工程，検査工程及び最終工程 上記給水蛇口(25)や給湯機(21)等を配設する仮配管工程
を行った後に、配管内の洗浄や、水漏れ検査を行い、そ
の後、弁箱(4) のユニット保持部(41)に装着されていた
閉塞蓋(8) に代えて減圧弁機構ユニット(5) を取付ける
最終工程の作業を実行する。When the temporary pipe is completed, the main pipe (11)
The tap water supplied to the water supply pipe (13) from the water supply pipe (13) is supplied from the water supply pipe (13) to the inlet-side piping connection (2a) of the valve box (4) → the open stopcock (15) → the strainer (46). ) Installation part → Unit holding part (41)
Inside → Vacancy (2c) → Outlet side piping connection (2b) → Flow meter (3
3) → It flows to the water supply circuit following the water supply faucet (25) and the water heater (21). * Cleaning process, inspection process and final process After performing the temporary piping process of installing the above-mentioned water supply faucet (25) and water heater (21), etc., perform cleaning of the piping and inspection for water leakage, and then the valve box The work of the final step of mounting the pressure reducing valve mechanism unit (5) in place of the closing lid (8) attached to the unit holding part (41) of (4) is executed.
【００３０】この為、図８の状態に於いて、止水栓(15)
を閉じ、その後、弁箱(4) のユニット保持部(41)部分に
差し込まれた係止ピン(35)を引き抜いて閉塞蓋(8) を取
り外す。次に、図７に示す配管洗浄具(100) の筒体(10
1) を弁箱(4) のユニット保持部(41)に挿入すると共
に、弁箱(4) のユニット保持部(41)の側壁に形成された
ピン孔(44)(44)に係止ピン(35)を再び挿入する。する
と、該係止ピン(35)の直線部(36)(36)が配管洗浄具(10
0) の筒体(101) に周設された環状凹溝(105) に係合
し、これにより、配管洗浄具(100) が上記ユニット保持
部(41)に抜止め状態に固定される。その後、配管洗浄具
(100) の排水管接続ネジ(104) に排水ホース等を必要に
応じて接続する。For this reason, in the state of FIG.
Then, the locking pin (35) inserted into the unit holding portion (41) of the valve box (4) is pulled out, and the closing lid (8) is removed. Next, the cylinder (10) of the pipe cleaning tool (100) shown in FIG.
1) is inserted into the unit holder (41) of the valve box (4), and the locking pin is inserted into the pin holes (44) (44) formed in the side wall of the unit holder (41) of the valve box (4). (35) is inserted again. Then, the linear portions (36) and (36) of the locking pin (35) are
The pipe cleaning tool (100) is fixed to the unit holding portion (41) in such a manner as to prevent the pipe cleaning tool (100) from being pulled out by engaging with the annular groove (105) provided around the cylindrical body (101). After that, plumbing cleaning tool
Connect drainage hose etc. to drainage connection screw (104) of (100) as necessary.
【００３１】次に、弁箱(4) に設けられた洗浄用開閉弁
(7) を閉じ、その後、ストレーナ(46)の上流側に配設さ
れた止水栓(15)を開放し、更に、弁箱(4) のユニット保
持部(41)に装着されている配管洗浄具(100) のコック部
(102) を開放する。すると、元管(11)から供給される水
道水が、給水管(13)から弁箱(4) 内に流入し、これが入
口側配管接続部(2a)→止水栓(15)→ストレーナ(46)→ユ
ニット保持部(41)と流れ、更に、配管洗浄具(100) 内を
流れて排水管接続ネジ(104) からこれに接続された排水
ホース等を介して外部に排水される。これにより、弁箱
(4) の上流の配管内に溜ったゴミが上記配管洗浄具(10
0) を介して外部に排出され、これにより、洗浄作業が
完了する。Next, the on-off valve for cleaning provided in the valve box (4)
(7) is closed, then the water stopcock (15) arranged on the upstream side of the strainer (46) is opened, and the piping installed on the unit holding part (41) of the valve box (4) is closed. Cock of cleaning tool (100)
Release (102). Then, tap water supplied from the main pipe (11) flows into the valve box (4) from the water supply pipe (13), and this flows into the inlet-side pipe connection (2a) → the stopcock (15) → the strainer ( 46)-> flows to the unit holding part (41), further flows in the pipe cleaning tool (100), and is drained to the outside from the drain pipe connection screw (104) via a drain hose connected thereto. With this, the valve box
Debris that has accumulated in the pipe upstream of (4)
0), and the washing operation is completed.
【００３２】つぎに、弁箱(4) のユニット保持部(41)に
取付けられた配管洗浄具(100) を取り外し、これに代え
て図６に示す水漏れ検査用具(9) を取付ける。即ち、弁
箱(4) のユニット保持部(41)部分に差し込んである係止
ピン(35)を引き抜いて配管洗浄具(100) を取り外し、そ
の後、水漏れ検査用具(9) の筒体(91)部分を上記ユニッ
ト保持部(41)内に挿入する。すると、筒体(91)の外周に
装着されたＯリング(98)が前記ユニット保持部(41)の内
周に密着してシール状態が確保される。つぎに、ユニッ
ト保持部(41)の側壁に形成されたピン孔(44)(44)に係止
ピン(35)を差し込むと、該係止ピン(35)の直線部(36)(3
6)が、水漏れ検査用具(9) の一端の筒体(91)外周に周設
された環状凹溝(97)に係合し、これにより、水漏れ検査
用具(9) が弁箱(4) に抜止め状態に固定される。次に、
水漏れ検査用具(9) の一端端部の接続ネジ部(90)に加圧
器(99)（図６の想像線参照）を接続し、その後、弁箱
(4) に装着された止水栓(15)を閉じて洗浄用開閉弁(7)
を手動開放する。又、水漏れ検査用具(9) の検査コック
(95)を開放した状態で加圧器(99)を作動させる。する
と、加圧器(99)→水漏れ検査用具(9) 内に形成された検
査用貫通路(89)の一端の開口(87)→検査用貫通路(89)内
→弁箱(4) 内→流量メーター(33)→給水蛇口(25)及び給
湯機(21)と繋がる配管内の水圧が上昇する。この状態で
検査コック(95)を閉じた状態に維持して水圧計(93)の表
示が低下するか否かを監視する。これにより、上記配管
の水漏れ検査が終了する。Next, the pipe cleaning tool (100) attached to the unit holding portion (41) of the valve box (4) is removed, and a water leak inspection tool (9) shown in FIG. 6 is mounted instead. That is, the locking pin (35) inserted into the unit holding portion (41) of the valve box (4) is pulled out to remove the plumbing cleaning tool (100), and then the cylinder (9) of the water leakage inspection tool (9) is removed. 91) Insert the part into the unit holding part (41). Then, the O-ring (98) mounted on the outer periphery of the cylindrical body (91) comes into close contact with the inner periphery of the unit holding portion (41), and a sealed state is ensured. Next, when the locking pin (35) is inserted into the pin holes (44) (44) formed in the side wall of the unit holding portion (41), the straight portions (36) (3) of the locking pin (35) are inserted.
6) engages with an annular groove (97) provided around the outer periphery of the cylindrical body (91) at one end of the water leakage inspection tool (9), whereby the water leakage inspection tool (9) 4) It is fixed in the retaining state at. next,
A pressurizer (99) (see the imaginary line in FIG. 6) is connected to the connection screw (90) at one end of the water leak inspection tool (9).
Close the stopcock (15) attached to (4) and open and close the on-off valve (7) for cleaning.
Is manually released. In addition, the inspection cock of the water leak inspection tool (9)
The pressurizer (99) is operated with (95) open. Then, the pressurizer (99) → the opening (87) at one end of the inspection through passage (89) formed in the water leak inspection tool (9) → the inspection through passage (89) → the valve box (4) → The flow meter (33) → The water pressure in the pipe connected to the water supply faucet (25) and the water heater (21) rises. In this state, the inspection cock (95) is kept closed to monitor whether the display of the water pressure gauge (93) is reduced. Thereby, the water leak inspection of the pipe is completed.
【００３３】次に、上記水漏れ検査用具(9) を取り外
し、これに代えて図２に示す減圧弁機構ユニット(5) を
取付ける。即ち、弁箱(4) のユニット保持部(41)部分に
差し込んである水漏れ検査用具(9) を引き抜いた後、減
圧弁機構ユニット(5) の絞り機構部(6) 部分を上記ユニ
ット保持部(41)内に挿入する。すると、前記絞り機構部
(6) の外周に取付けられたＯリング(50)(50)が前記ユニ
ット保持部(41)の内周に密着してシール状態が確保され
る。Next, the water leak inspection tool (9) is removed, and a pressure reducing valve mechanism unit (5) shown in FIG. 2 is mounted instead. That is, after the water leakage inspection tool (9) inserted into the unit holding portion (41) of the valve box (4) is pulled out, the throttle mechanism (6) of the pressure reducing valve mechanism unit (5) is held in the unit holding unit. Insert into the part (41). Then, the aperture mechanism section
The O-rings (50) and (50) attached to the outer periphery of (6) are in close contact with the inner periphery of the unit holding portion (41) to ensure a sealed state.
【００３４】次に、図３に示すように、上記ユニット保
持部(41)の側壁に形成されたピン孔(44)(44)に係止ピン
(35)を差し込むと、該係止ピン(35)の直線部(36)(36)
が、絞り機構部(6) の上部外周に形成された係合溝部(6
6)に係合し、これにより、図１に示すように、減圧弁機
構ユニット(5) が弁箱(4) に抜止め状態に固定される。
即ち、弁箱(4) の一部と減圧弁機構ユニット(5) から成
る減圧弁(31)と、止水栓(15)や洗浄用開閉弁(7) を具備
する弁装置(A) が完成する。Next, as shown in FIG. 3, locking pins are inserted into pin holes (44) (44) formed in the side wall of the unit holding portion (41).
When the (35) is inserted, the straight portion (36) (36) of the locking pin (35)
Are engaged with the engaging groove (6) formed on the outer periphery of the upper part of the throttle mechanism (6).
6), whereby the pressure reducing valve mechanism unit (5) is fixed to the valve box (4) so as not to come off as shown in FIG.
That is, a pressure reducing valve (31) composed of a part of a valve box (4) and a pressure reducing valve mechanism unit (5), and a valve device (A) including a water stopcock (15) and a cleaning on-off valve (7) are included. Complete.
【００３５】この状態では、入口側配管接続部(2a)→止
水栓(15)の配設部→ストレーナ(46)の配設部→胴部入口
(42)→外周凹溝(43)→連通孔(64)→軸挿通孔(61)内→空
室(2c)→洗浄用開閉弁(7) の配設部→出口側配管接続部
(2b)の順序で繋がる通水路(40)が形成され、これによ
り、元管(11)→給水管(13)及び弁箱(4) →流量メーター
(33)→給水蛇口(25)及び給湯機(21)の経路で水道水が供
給される状態になる。In this state, the inlet side pipe connection part (2a) → the part where the water stopcock (15) is installed → the part where the strainer (46) is installed → the body inlet
(42) → Outer groove (43) → Communication hole (64) → Inside shaft insertion hole (61) → Vacancy (2c) → Arrangement of cleaning on-off valve (7) → Outlet side piping connection
A water passage (40) connected in the order of (2b) is formed, whereby the main pipe (11) → the water supply pipe (13) and the valve box (4) → the flow meter
(33) → Tap water is supplied through the path of the water supply faucet (25) and the hot water supply device (21).
【００３６】又、弁箱(4) に減圧弁機構ユニット(5) を
取付けた図１の状態では、出力軸(67)の下端部は、バネ
(69)によって上向きに付勢された状態になる。これによ
り、下流側の出口側配管接続部(2b)に続く二次側が第２
通路(65)を介して二次圧室(53)と連通し、二次側の圧力
が二次圧室(53)に伝達される。通常時は二次圧調節バネ
(54)の付勢力とダヤフラム(D) に作用する二次圧の作動
力との差に応じて、摺動弁(111) →出力軸(67)の経路で
ダヤフラム(D) の動作が出力弁(68)に伝達され、減圧弁
としての動作が実現される。In the state shown in FIG. 1 in which the pressure reducing valve mechanism unit (5) is mounted on the valve box (4), the lower end of the output shaft (67) is
The state is urged upward by (69). As a result, the secondary side following the outlet-side pipe connection (2b) on the downstream side is the second side.
The secondary pressure is communicated with the secondary pressure chamber (53) through the passage (65), and the pressure on the secondary side is transmitted to the secondary pressure chamber (53). Normally secondary pressure adjustment spring
According to the difference between the biasing force of (54) and the operating force of the secondary pressure acting on the diaphragm (D), the operation of the diaphragm (D) is output through the path from the sliding valve (111) to the output shaft (67). The signal is transmitted to the valve (68), and the operation as a pressure reducing valve is realized.
【００３７】以上説明したように、本実施の形態では、
仮配管工程で弁箱(4) を接続しておけば、これに閉塞蓋
(8) ，配管洗浄具(100) ，水漏れ検査用具(9) 及び減圧
弁機構ユニット(5) を順次付け替えるだけで、配管作業
が完了し、既述従来のように第１補足管(17)や分岐継ぎ
手(27)の配管と取り外しの作業が不要になり、作業効率
が向上する。As described above, in the present embodiment,
If the valve box (4) is connected in the temporary piping process,
(8) By simply replacing the pipe cleaning tool (100), the water leak inspection tool (9) and the pressure reducing valve mechanism unit (5) in sequence, the pipe work is completed and the first supplementary pipe (17 ) And the work of piping and removing the branch joint (27) are not required, and work efficiency is improved.
【図１】本発明の実施の形態を説明する弁装置(A) を用
いた水道配管の概略図FIG. 1 is a schematic diagram of a water supply pipe using a valve device (A) for explaining an embodiment of the present invention.
【図２】減圧弁機構ユニット(5) の側面図FIG. 2 is a side view of the pressure reducing valve mechanism unit (5).
【図３】絞り機構部(6) を弁箱(4) に固定する係止ピン
(35)の差込部の断面図FIG. 3 is a locking pin for fixing the throttle mechanism (6) to the valve box (4)
Sectional view of the insertion part of (35)
【図４】ストレーナ(46)，絞り機構部(6) 及び弁軸(74)
の弁体(72)の配設部の構造を示す断面図Fig. 4 Strainer (46), throttle mechanism (6) and valve shaft (74)
Sectional view showing the structure of the arrangement part of the valve body (72) of
【図５】減圧弁機構ユニット(5) の断面図FIG. 5 is a sectional view of the pressure reducing valve mechanism unit (5).
【図６】水漏れ検査用具(9) の説明図FIG. 6 is an explanatory view of a water leak inspection tool (9).
【図７】配管洗浄具(100) の説明図FIG. 7 is an explanatory view of a pipe cleaning tool (100).
【図８】仮配管状態を説明する配管状態図FIG. 8 is a piping state diagram illustrating a temporary piping state.
【図９】従来例の説明図FIG. 9 is an explanatory view of a conventional example.
(4) ・・・弁箱 (5) ・・・減圧弁機構ユニット (8) ・・・閉塞蓋 (11)・・・元管 (15)・・・止水栓 (25)・・・給水蛇口 (31)・・・減圧弁 (33)・・・流量メータ (45)・・・連通孔 (4) ・ ・ ・ Valve box (5) ・ ・ ・ Reducing valve mechanism unit (8) ・ ・ ・ Clogging lid (11) ・ ・ ・ Main pipe (15) ・ ・ ・ Faucet (25) ・ ・ ・ Water supply Faucet (31) ・ ・ ・ Reducing valve (33) ・ ・ ・ Flow meter (45) ・ ・ ・ Communication hole
フロントページの続き (72)発明者 川戸 浩 大阪市中央区本町四丁目１番13号 株式 会社竹中工務店大阪本店内 (72)発明者 荒川 和行 大阪市中央区本町四丁目１番13号 株式 会社竹中工務店大阪本店内 (72)発明者 飴山 善昭 神奈川県茅ケ崎市南湖１丁目10番26号 株式会社東京暖冷器製作所 茅ケ崎工場 内 (72)発明者 田島 浩一 神奈川県茅ケ崎市南湖１丁目10番26号 株式会社東京暖冷器製作所 茅ケ崎工場 内 (72)発明者 吉田 一茂 京都市右京区鳴滝桐ケ渕町30 株式会社 仲啓内 (56)参考文献 特開 昭59−120935（ＪＰ，Ａ) 特開 昭62−193615（ＪＰ，Ａ) 特開 平５−5320（ＪＰ，Ａ) 特開 平２−224102（ＪＰ，Ａ) 実開 平３−50653（ＪＰ，Ｕ) (58)調査した分野(Int.Cl.7，ＤＢ名) F16K 27/00 E03B 7/00 Continuing from the front page (72) Inventor Hiroshi Kawato 4-1-1-13 Honcho, Chuo-ku, Osaka-shi Inside Takenaka Corporation Osaka Main Store (72) Inventor Kazuyuki Arakawa 4-1-1-13, Honcho, Chuo-ku, Osaka-shi Shares Takenaka Corporation Osaka Main Store (72) Inventor Yoshiaki Ameyama 1-10-26 Nanko, Chigasaki-shi, Kanagawa Prefecture Tokyo Heating & Cooling Plant Co., Ltd. No. 10-26 Tokyo Heating and Cooling Plant Chigasaki Factory (72) Inventor Kazushige Yoshida 30 Narutaki Kirigafuchi-cho, Ukyo-ku, Kyoto-shi Naka Keinai Co., Ltd. (56) References JP-A-59-120935 (JP, A) JP-A-62-193615 (JP, A) JP-A-5-5320 (JP, A) JP-A-2-224102 (JP, A) JP-A-3-50653 (JP, U) (58) Survey Field (Int.Cl. 7 , DB name) F16K 27/00 E03B 7/00
Claims (6)
回路に、止水栓(15)，減圧弁(31)，流量メーター(33)及
び給水蛇口(25)をこの順序で上流側から配設する配管方
法に於いて、 前記減圧弁(31)は、通水路が貫通した弁箱と、該弁箱の
外面から前記通水路に繋がる連通孔(45)に接続され且つ
前記弁箱に形成された結合部に取り外し可能状態に結合
される第１被結合部を具備する減圧弁機構ユニット(5)
から構成されると共に、 前記第１被結合部と同一構造を有する第２被結合部を備
え且つ前記連通孔(45)が前記弁箱外面に開放する開口を
閉塞する閉塞蓋(8) と、前記第１被結合部と同一構造を
有する第３被結合部を備え且つ前記連通孔(45)に接続さ
れる水漏れ検査用具(9) とを準備し、 前記第２被結合部と前記結合部を結合させることにより
前記連通孔(45)の前記開口を前記閉塞蓋(8) で閉塞した
前記弁箱を、前記減圧弁(31)の接続予定位置に接続する
と共に該弁箱の上流側及び下流側に前記止水栓(15)及び
前記給水蛇口(25)等を配管接続する仮配管工程と、 前記第３被結合部と前記結合部を結合させることにより
前記閉塞蓋(8) に代えて前記水漏れ検査用具(9) を前記
連通孔(45)に接続固定して水漏れ検査を行う検査工程
と、 前記第１被結合部と前記結合部を結合させることにより
前記水漏れ検査用具(9) に代えて前記減圧弁機構ユニッ
ト(5) を前記連通孔(45)に接続固定する最終工程と、を
実行する配管方法。1. A water stop circuit (15), a pressure reducing valve (31), a flow meter (33) and a water supply faucet (25) are arranged in this order in a water supply circuit branched from the main pipe (11) into each home. In a piping method arranged from the upstream side, the pressure reducing valve (31) is connected to a valve box through which a water passage has penetrated, and a communication hole (45) connected to the water passage from the outer surface of the valve box, and Pressure reducing valve mechanism unit (5) having a first coupled portion detachably coupled to a coupling portion formed in the valve box (5)
A closing lid (8) comprising a second connected part having the same structure as the first connected part, and closing the opening in which the communication hole (45) opens to the outer surface of the valve box; A water leak inspection tool (9) including a third coupled portion having the same structure as the first coupled portion and connected to the communication hole (45) is prepared, and the second coupled portion and the coupling are provided. The valve box, in which the opening of the communication hole (45) is closed by the closing lid (8) by connecting the parts, is connected to a connection planned position of the pressure reducing valve (31), and the upstream side of the valve box. And a provisional piping step of connecting the water stopcock (15) and the water supply faucet (25) and the like on the downstream side, and connecting the third coupled portion and the coupling portion to the closing lid (8). An inspection step of connecting and fixing the water leakage inspection tool (9) to the communication hole (45) to perform a water leakage inspection; And a final step of connecting and fixing the pressure reducing valve mechanism unit (5) to the communication hole (45) in place of the water leak inspection tool (9) by connecting parts.
(33)が配設されるメータ配設位置との間の給水回路を手
動で開閉する洗浄用開閉弁(7) を前記仮配管工程で接続
する配管方法。2. The piping method according to claim 1, wherein the communication hole (45) in the valve box and the flow meter.
A piping method for connecting a cleaning on-off valve (7) for manually opening and closing a water supply circuit between the meter disposing position where (33) is disposed in the temporary piping step.
から前記通水路に繋がる連通孔(45)に接続され且つ前記
弁箱に形成された結合部に取り外し可能状態に結合され
る第１被結合部を具備する減圧弁機構ユニット(5) を備
えた弁装置において、 前記弁箱に於ける前記減圧弁機構ユニット(5) の配設部
より上流の前記通水路内に止水栓(15)を配設し、 前記減圧弁機構ユニット(5) に於ける前記第１被結合部
と同一構造の第２被結合部を具備する閉塞蓋(8) が前記
減圧弁機構ユニット(5) と選択的に前記連通孔(45)に取
付けられる弁装置。3. A valve box through which a water passage has penetrated, and connected to a communication hole (45) connected to the water passage from an outer surface of the valve box and removably connected to a connecting portion formed in the valve box. A valve device having a pressure reducing valve mechanism unit (5) having a first coupled portion, wherein the valve device is stopped in the water passage upstream of a portion of the valve box where the pressure reducing valve mechanism unit (5) is provided. A faucet (15) is provided, and a closing lid (8) having a second coupled portion having the same structure as the first coupled portion in the pressure reducing valve mechanism unit (5) is provided with the pressure reducing valve mechanism unit. (5) A valve device selectively installed in the communication hole (45).
壁に貫設されたストレーナ装着孔から前記通水路内に挿
抜可能に挿入され、且つ、前記通水路を流れる水のゴミ
を捕集するストレーナが設けられた弁装置。4. The valve device according to claim 3, wherein a strainer mounting hole penetrating through a component wall of the valve box so as to connect the outside of the valve box and the water passage, into the water passage. A valve device which is inserted so as to be able to be inserted and withdrawn and which is provided with a strainer for collecting water debris flowing through the water passage.
面に繋がる連通孔(45)の前記弁箱外面側の開口を閉塞す
る閉塞蓋(8) であって、 前記連通孔(45)に接続することによって前記弁箱と共に
減圧弁(31)を構成し且つ前記弁箱に形成された結合部に
取り外し可能状態に結合される第１被結合部を具備する
減圧弁機構ユニット(5) の、前記第１被結合部と同一構
造を有する第２被結合部を備えている閉塞蓋。5. A closing lid (8) for closing an opening on an outer surface side of the valve box of a communication hole (45) connected to an outer surface of the valve box from a water passage penetrating the valve box, wherein the communication hole (45) ) Together with the valve box to constitute a pressure reducing valve (31), and a pressure reducing valve mechanism unit (5) having a first coupled portion detachably coupled to a coupling portion formed in the valve box. 3) a closing lid including a second coupled portion having the same structure as the first coupled portion.
面に繋がる連通孔(45)に接続され、且つ前記連通孔(45)
内を外部に繋げる検査用貫通路が形成された水漏れ検査
用具(9) であって、 前記連通孔(45)に接続することによって前記弁箱と共に
減圧弁(31)を構成し且つ前記弁箱に形成された結合部に
取り外し可能状態に結合される第１被結合部を具備する
減圧弁機構ユニット(5) の、前記第１被結合部と同一構
造を有する第３被結合部と、 前記検査用貫通路の途中から分岐する分岐回路に接続さ
れた水圧計と、 前記検査用貫通路からの前記分岐回路の分岐点と前記検
査用貫通路が前記外部に開放する開口の間の通路を手動
開閉する検査コックと、を具備する水漏れ検査用具。6. A communication hole (45) connected to a communication hole (45) connected to an outer surface of the valve box from a water passage penetrating the valve box, and the communication hole (45).
A water leak inspection tool (9) formed with an inspection through passage connecting the inside to the outside, comprising a pressure reducing valve (31) together with the valve box by being connected to the communication hole (45), and the valve A third coupled portion having the same structure as the first coupled portion of a pressure reducing valve mechanism unit (5) including a first coupled portion detachably coupled to a coupling portion formed in a box; A water pressure gauge connected to a branch circuit branching from the middle of the test through-passage; and a passage between a branch point of the branch circuit from the test through-passage and an opening through which the test through-pass opens to the outside. An inspection cock that manually opens and closes a water leak inspection tool.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11058608A JP3099084B2 (en) | 1999-03-05 | 1999-03-05 | Piping method and valve device, closing lid, water leak inspection tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11058608A JP3099084B2 (en) | 1999-03-05 | 1999-03-05 | Piping method and valve device, closing lid, water leak inspection tool |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2000257735A JP2000257735A (en) | 2000-09-19 |
| JP3099084B2 true JP3099084B2 (en) | 2000-10-16 |
Family
ID=13089254
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11058608A Expired - Fee Related JP3099084B2 (en) | 1999-03-05 | 1999-03-05 | Piping method and valve device, closing lid, water leak inspection tool |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3099084B2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5719180B2 (en) * | 2011-01-14 | 2015-05-13 | 積水化学工業株式会社 | Piping method |
-
1999
- 1999-03-05 JP JP11058608A patent/JP3099084B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JP2000257735A (en) | 2000-09-19 |
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