JP2019065694A - Water-supply pipe structure - Google Patents
Water-supply pipe structure Download PDFInfo
- Publication number
- JP2019065694A JP2019065694A JP2018215739A JP2018215739A JP2019065694A JP 2019065694 A JP2019065694 A JP 2019065694A JP 2018215739 A JP2018215739 A JP 2018215739A JP 2018215739 A JP2018215739 A JP 2018215739A JP 2019065694 A JP2019065694 A JP 2019065694A
- Authority
- JP
- Japan
- Prior art keywords
- water
- supply pipe
- water supply
- valve
- meter
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 363
- 239000008399 tap water Substances 0.000 claims abstract description 90
- 235000020679 tap water Nutrition 0.000 claims abstract description 90
- 230000007246 mechanism Effects 0.000 claims description 68
- 238000011144 upstream manufacturing Methods 0.000 claims description 16
- 230000000903 blocking effect Effects 0.000 claims description 6
- 238000007689 inspection Methods 0.000 description 9
- 230000008901 benefit Effects 0.000 description 6
- 230000005540 biological transmission Effects 0.000 description 4
- 230000002950 deficient Effects 0.000 description 3
- 238000012423 maintenance Methods 0.000 description 3
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
Landscapes
- Measuring Volume Flow (AREA)
- Safety Valves (AREA)
- Electrically Driven Valve-Operating Means (AREA)
Abstract
Description
本発明は、ボックス内に水道用メータを収容可能に構成されている給水管構造に関する。 The present invention relates to a water supply pipe structure configured to be able to accommodate a water meter in a box.
かかる給水管構造においては、配水池から水道水を流すための本管が設けられ、その本管の上流側には、地震発生時に水道水の流れを遮断するための本管用遮断弁が設けられている（例えば特許文献１参照）。 In such a water supply pipe structure, a main pipe for flowing tap water from the distribution reservoir is provided, and on the upstream side of the main pipe, a main pipe shut-off valve for shutting off the flow of tap water when an earthquake occurs is provided. (See, for example, Patent Document 1).
また、本管用遮断弁よりも下流側の本管には、所定間隔を置いて複数の手動式の仕切弁が設けられている。そして、本管用遮断弁と仕切弁との間や水道水流れ方向で隣り合う２つの仕切弁間において、本管から需要者側へ給水を行うための給水管構造が設けられる。この給水管構造は、本管に分水栓を介して接続される一次側給水管と、一次側給水管の水道水の流出側端部に接続される止水栓及びこの止水栓の水道水の流出側端部に接続される自治体の管轄の末端にある水道用メータが収容可能なボックスと、水道用メータの水道水の流出側端部が接続される需要者の所有物である二次側給水管とを備えている。このように給水管構造を備えることによって、本管からの水道水を需要者へ供給することができる（例えば特許文献２参照）。 In addition, a plurality of manual gate valves are provided at predetermined intervals on the main pipe downstream of the main pipe shutoff valve. Then, a water supply pipe structure for supplying water from the main pipe to the consumer side is provided between the main pipe shutoff valve and the gate valve and between two gate valves adjacent in the flow direction of the tap water. This water supply pipe structure includes a primary side water supply pipe connected to the main pipe via a water tap, a water stop valve connected to the outflow side end of the tap water of the primary side water supply pipe, and a water tap of this water stop valve A box that can be accommodated by the water meter at the end of the jurisdiction of the municipality connected to the water outlet end, and the property of the user who is connected to the consumer connected to the water outlet end of the water meter It is equipped with the following side water supply pipe. By providing the water supply pipe structure in this manner, tap water from the main pipe can be supplied to the consumer (see, for example, Patent Document 2).
そして、地震が発生すると、本管用遮断弁が閉じられ、本管から需要者への給水が停止して断水になる。そして、自治体の職員は、自治体管轄全域において断水をすばやく復旧するため、自治体が管轄する本管を優先して破損等がないか検査していく。具体的には、地震が沈静化した後、閉じられている本管用遮断弁の下流側に位置する仕切弁を手動により閉じる。この後、本管用遮断弁と仕切弁との間の本管に通水をして水圧検査を行う。その水圧検査の結果が合格であれば、続いて、前記仕切弁とこの仕切弁よりも下流側に位置する仕切弁を手動により閉じて、これら２つの仕切弁間の本管の水圧検査を行い、これを繰り返していく。 Then, when an earthquake occurs, the main cutoff valve is closed, and the water supply from the main to the consumer is stopped to shut off the water. And, in order to restore the water supply quickly in the whole area under the jurisdiction of the local government, the staff of the local government gives priority to the mains under the jurisdiction of the local government and inspects for damage or the like. Specifically, after the earthquake has subsided, the gate valve located downstream of the closed main pipe shutoff valve is manually closed. After that, water flow is conducted to the main pipe between the main pipe shutoff valve and the gate valve to conduct a water pressure inspection. If the result of the water pressure test is a pass, subsequently, the gate valve and the gate valve located downstream of the gate valve are manually closed, and the water pressure of the main pipe between the two gate valves is checked. , Repeat this.
しかしながら、閉じられている水圧検査の対象となる本管用遮断弁と仕切弁との間又は仕切弁と仕切弁との間の本管から分岐（接続）している給水管において、例えば需要者宅内の給水管（二次側給水管）の破損が生じている場合には、水圧検査で合格となる良好な検査結果が得られない。そればかりか、本管（自治体管轄）で破損しているのか、二次側給水管（需要者所有物）で破損しているのかを特定できない。 However, in the water supply pipe which is branched (connected) from the main pipe between the shutoff valve and the gate valve, or between the gate valve and the gate valve, which is the subject of the closed water pressure inspection, for example, In the case where breakage of the water supply pipe (secondary side water supply pipe) occurs, the water pressure inspection does not give a good inspection result to pass. Moreover, it is not possible to identify whether the main (jurisdiction of the local government) is damaged or the secondary water pipe (consumer owned) is damaged.
そこで、ボックス内の止水栓の回転ハンドルを手動で回転させて止水栓を閉じることにより、本管及び本管から一次側給水管までの水圧検査を行うことができる。この水圧検査の結果が、合格である場合には、二次側給水管に破損があることが考えられる。また、前記本管から一次側給水管までの水圧検査が不合格であった場合には、少なくとも本管又は一次側給水管あるいはそれら両方の管に破損があることを特定できる。しかしながら、止水栓が設置されている各需要者宅まで移動して各止水栓を一つずつ閉じなければならず、その閉じる作業が非常に時間のかかる煩わしい作業で断水時間の長期化になり、改善の余地があった。 Then, the hydraulic pressure test from the main pipe and the main pipe to the primary water supply pipe can be performed by manually rotating the rotary handle of the water stop valve in the box to close the water stop valve. If the result of the water pressure test is a pass, it is considered that the secondary water supply pipe is broken. In addition, when the water pressure test from the main pipe to the primary water supply pipe fails, it is possible to identify that at least the main pipe and the primary water supply pipe or both of the pipes are damaged. However, it is necessary to move to each customer's home where the water stop valve is installed and close each water stop valve one by one, and the closing operation is a time-consuming and troublesome operation to prolong the water stopping time. And there was room for improvement.
本発明は前述の状況に鑑み、解決しようとするところは、本管の復旧作業を効率よく行って断水をいち早く解消することができる給水管構造を提供するものである。 SUMMARY OF THE INVENTION In view of the above-described situation, the present invention provides a water supply pipe structure capable of efficiently performing a restoration work of a main pipe to quickly eliminate water interruption.
本発明の給水管構造は、前述の課題解決のために、本管に接続される一次側給水管と、前記一次側給水管の水道水の流出側端部に接続される水道用メータの水道水の流出側端部に接続される二次側給水管と、前記一次側給水管と前記水道用メータとの間又は前記水道用メータと前記二次側給水管との間に配置され、地震検知器を収納し、地震により発生する所定の大きさの振動を前記地震検知器が検出することで作動して水道水の流れを遮断する給水管用遮断弁と、該給水管用遮断弁及び前記水道用メータを収容可能であり地中に埋設されるボックスと、を設けたことを特徴としている。 The water supply pipe structure according to the present invention is, in order to solve the above-mentioned problems, a primary water supply pipe connected to a main pipe and a water tap of a water meter connected to an outflow side end of tap water of the primary water supply pipe. It is disposed between the secondary side water supply pipe connected to the outflow side end of water, between the primary side water supply pipe and the water meter, or between the water meter and the secondary water supply pipe, A shut-off valve for a water supply pipe which houses a detector and operates when the earthquake detector detects a predetermined magnitude of vibration generated by an earthquake to shut off the flow of tap water, the shut-off valve for the water supply pipe, and the water supply And a box which can accommodate the meter and is buried in the ground.
また、前記実施形態の給水管構造は、前記給水管用遮断弁は電動弁からなり、該電動弁は、水道水の流れを遮断する弁体を備える弁箱部と、前記弁体に連結された弁軸を介して該弁体を前記弁箱部内で開閉操作させる駆動機構が収納される駆動機構部とを備え、前記弁箱部の水道水の流れ方向における中心位置が、前記弁軸に対して前記水道用メータ側にずれており、前記駆動機構部の水道水の流れ方向における中心位置が、前記弁箱部における前記中心位置に対して前記水道用メータ側にずれていてもよい。 In the water supply pipe structure according to the embodiment, the water supply pipe shutoff valve is an electric valve, and the electric motor valve is connected to the valve body including a valve body that shuts off the flow of tap water, and the valve body And a drive mechanism unit for accommodating a drive mechanism for opening and closing the valve in the valve box via the valve shaft, wherein the central position of the valve box in the flow direction of the tap water is relative to the valve shaft The center position of the drive mechanism unit in the flow direction of the tap water may be offset to the water meter side with respect to the center position of the valve box portion.
また、前記実施形態の給水管構造は、前記給水管用遮断弁は、前記水道用メータと前記二次側給水管との間に配置され、水道水の流れ方向上流側端に継ぎ手を備え、前記水道用メータは、水道水の流れ方向下手側端に螺子部を備え、前記継ぎ手は、前記水道用メータの前記螺子部にねじ込まれて接続されていてもよい。 In the water supply pipe structure of the embodiment, the water supply pipe shut-off valve is disposed between the water meter and the secondary water supply pipe, and has a joint at the upstream end in the flow direction of the tap water, The water meter may include a screw at a lower end in the flow direction of the tap water, and the joint may be screwed and connected to the screw of the water meter.
また、前記実施形態の給水管構造は、前記給水管用遮断弁は電動弁からなり、該電動弁が、水道水の流れを遮断する弁体を備える弁箱部と、前記弁体に連結された弁軸を介して該弁体を前記弁箱部内で開閉操作させる駆動機構が収納される駆動機構部とを備え、前記ボックスは、水道水の流れ方向上流側に位置する側壁と水道水の流れ方向下流側に位置する側壁との内側に形成され、前記水道用メータ側へ突出する複数の縦リブを備え、前記複数の縦リブの各々における前記水道用メータ側の端面は、上方に向うほど水道用メータ側に位置する傾斜面であり、前記駆動機構を収納するケースは、水道水の流れ方向下流側の端面につき、上方に向うほど水道用メータ側に位置する傾斜面を備えていてもよい。 In the water supply pipe structure according to the embodiment, the water supply pipe shutoff valve includes a motor-operated valve, and the motor-operated valve is connected to the valve housing including a valve body that shuts off the flow of tap water And a drive mechanism unit for accommodating a drive mechanism for opening and closing the valve in the valve box via the valve shaft, wherein the box includes a side wall located on the upstream side in the flow direction of the tap water and the flow of the tap water A plurality of longitudinal ribs formed on the inner side with the side wall located on the downstream side in the direction and projecting to the water meter side, and the end surface on the water meter side of each of the plurality of longitudinal ribs It is an inclined surface located on the water meter side, and the case for housing the drive mechanism has an inclined surface located on the water meter side as it goes upward with respect to the end surface downstream of the tap water flow direction. Good.
また、前記実施形態の給水管構造は、前記一次側給水管と前記水道用メータとの間に水道水の流れを止めるための止水栓が配置され、前記給水管用遮断弁は、前記止水栓よりも高い位置に配置されていてもよい。 In the water supply pipe structure of the embodiment, a water stop valve for stopping the flow of tap water is disposed between the primary side water supply pipe and the water meter, and the water supply pipe blocking valve is the water stop It may be disposed at a position higher than the plug.
本発明によれば、地震により所定の大きさの振動が発生すると、ボックス内に設けた給水管用遮断弁が閉じるので、自治体が管轄している配管の不良箇所を直ちに把握することができ、本管の復旧作業を効率よく行って断水をいち早く解消することができる給水管構造を提供することができる。また、水道用メータを収容可能なボックスに給水管用遮断弁を納めることで、新たな掘削が不要で、設置費用を安くできる利点がある。更にまた、給水管用遮断弁が水道用メータの直近にあることで、自治体が維持管理を容易に行え、需要者も遮断状況の確認を容易にできる利点もある。 According to the present invention, when a vibration of a predetermined magnitude occurs due to an earthquake, the water supply pipe shutoff valve provided in the box is closed, so that it is possible to immediately grasp the defective portion of the piping under the jurisdiction of the local government. It is possible to provide a water supply pipe structure that can efficiently carry out pipe restoration work and quickly eliminate water shortage. Also, by placing the shutoff valve for the water supply pipe in a box that can accommodate a water meter, there is an advantage that installation costs can be reduced because new drilling is unnecessary. Furthermore, the fact that the water supply pipe shutoff valve is in the immediate vicinity of the water meter has the advantage that the local government can easily perform maintenance and management, and the consumer can easily check the shutoff status.
図１に、本発明の給水管構造を有する水道設備の概略平面図を示している。この水道設備は、図示していない配水池からの水道水を流すための本管１と、本管１の上流側に設けられた本管用遮断弁２と、本管用遮断弁２に対して下流側に設けられた手動式の仕切弁２Ａと、本管用遮断弁２と仕切弁２Ａとの間に分水栓（図示せず）を介して接続される多数（図３では４個）の給水管構造３とを備えている。給水管構造３へ供給される水道水は、需要者宅（戸建て住宅又は集合住宅等）Ｈが利用できる。図１では、１個の仕切弁２Ａのみを示しているが、図１に示した仕切弁２Ａよりも下流側の本管１にも仕切弁を設けてもよい。 FIG. 1 shows a schematic plan view of a water supply system having a water supply pipe structure of the present invention. The water supply system includes a main pipe 1 for flowing tap water from a distribution reservoir (not shown), a main pipe shut-off valve 2 provided on the upstream side of the main pipe 1, and a main pipe shut-off valve 2 downstream. A manual gate valve 2A provided on the side, and a large number (four in FIG. 3) of water supplies connected via a water tap (not shown) between the main pipe shutoff valve 2 and the gate valve 2A. And a pipe structure 3. The tap water supplied to the water supply pipe structure 3 can be used by a demander's home (such as a detached house or an apartment house) H. Although only one gate valve 2A is shown in FIG. 1, the gate valve may be provided on the main pipe 1 downstream of the gate valve 2A shown in FIG.
給水管構造３は、図１〜図３に示すように、本管１に分水栓（図示せず）を介して接続される一次側給水管４と、収容空間を有するボックス５と、ボックス５内に収容される止水栓６と、給水管用遮断弁７と、給水管用遮断弁７の水道水の流出側端部に接続される二次側給水管８とを備えている。尚、図２では、図３の蓋９を取り外した状態を示している。 The water supply pipe structure 3 is, as shown in FIGS. 1 to 3, a primary side water supply pipe 4 connected to the main pipe 1 via a water tap (not shown), a box 5 having a storage space, and a box A water stop valve 6 accommodated in the water supply pipe 5, a shutoff valve 7 for the water supply pipe, and a secondary water supply pipe 8 connected to the outflow side end of the tap water of the water supply pipe shutoff valve 7 are provided. 2 shows a state in which the lid 9 of FIG. 3 is removed.
止水栓６と給水管用遮断弁７との間には、自治体の管轄の末端にある水道用メータＭが配置される。水道用メータＭに対して水道水の流入側となる一次側に止水栓６が配置され、水道用メータＭに対して水道水の流出側となる二次側に給水管用遮断弁７が配置されている。従って、ボックス５の長手方向において、水道用メータＭをほぼ中央部に配置することができ、ボックス５の蓋９（後述する）を開けて水道用メータＭの検針やメンテナンスを行い易い利点がある。また、止水栓６と給水管用遮断弁７の高さが、水道用メータＭの高さよりも高くなっていることから、止水栓６の回転ハンドル１８の操作や給水管用遮断弁７の手動操作ハンドル２７の操作がし易いという利点がある。また、水道用メータＭには、メータの目盛り等を覆うべくヒンジにより開閉揺動可能な蓋（カバー）が取り付けられている。このことから、蓋（カバー）を開けた時のスペースが水道用メータＭの上方に必要となるため、その上方のスペースも考慮して水道用メータＭの高さをできるだけ低く設定することが好ましい。更にまた、給水管用遮断弁７を止水栓６よりも少し高くなるように設定することによって、後述の第２ケース２６Ｋに備える電源供給機構のメンテナンス作業を行い易いだけでなく、地中に埋設されているボックス５内に水が溜まっている場合でも、高い位置にある電源供給機構に水が浸かることを回避し易い。 A water meter M at the end of the jurisdiction of the municipality is disposed between the water stop valve 6 and the water supply pipe shutoff valve 7. The water stop valve 6 is disposed on the primary side on the inflow side of tap water with respect to the water meter M, and the water supply pipe shutoff valve 7 is disposed on the secondary side on the outflow side of the tap water for the water meter M It is done. Therefore, in the longitudinal direction of the box 5, the water meter M can be disposed substantially at the center, and there is an advantage that the lid 9 (described later) of the box 5 is opened to easily perform meter reading and maintenance of the water meter M . Further, since the height of the water stop valve 6 and the shutoff valve 7 for the water supply pipe is higher than the height of the water meter M, the operation of the rotary handle 18 of the water shutoff valve 6 and the manual operation of the shutoff valve 7 for the water supply pipe There is an advantage that the operation handle 27 can be easily operated. In addition, a lid (cover) that can be opened and closed by a hinge is attached to the water meter M so as to cover a scale or the like of the meter. From this, it is preferable to set the height of the water meter M as low as possible in consideration of the space above the water meter M because a space is required above the water meter M when the lid (cover) is opened. . Furthermore, by setting the water supply pipe shutoff valve 7 to be slightly higher than the water stop valve 6, not only is it easy to carry out maintenance work of the power supply mechanism provided in the second case 26K described later, it is buried in the ground. Even when water is accumulated in the box 5 being stored, it is easy to prevent the water from being soaked in the power supply mechanism located at the high position.
ボックス５は、上方が開放され、平面視において矩形状（図１では長方形）の底壁１０と、底壁１０の外周縁から上方に立ち上げられた側壁１１とを備えている。側壁１１は、４つの縦壁である前壁１２、後壁１３、左側壁１４、右側壁１５を備えている。前壁１２が水道水の流れ方向上流側に位置し、後壁１３が水道水の流れ方向下流側に位置している。また、図３に示すように、側壁１１の上端に、上方開口１１Ａを閉じる蓋９を開閉可能に備えている。前壁１２及び後壁１３の内側には、水道水の流れ方向と直交する左右幅方向に沿って間隔を置いて水道用メータＭ側へ突出する複数の壁補強用の板状の縦リブ１２Ａ，１３Ａが形成されている。この縦リブ１２Ａ，１３Ａの水道用メータＭ側の端面１２ａ，１３ａは、上方に向うほど水道用メータＭ側に位置する傾斜面に構成されている。 The box 5 is open at the top, and includes a bottom wall 10 having a rectangular shape (a rectangular shape in FIG. 1) in a plan view and a side wall 11 rising upward from the outer peripheral edge of the bottom wall 10. The side wall 11 includes four longitudinal walls, a front wall 12, a rear wall 13, a left side wall 14, and a right side wall 15. The front wall 12 is located on the upstream side in the flow direction of tap water, and the rear wall 13 is located on the downstream side in the flow direction of tap water. Further, as shown in FIG. 3, a lid 9 for closing the upper opening 11A is provided on the upper end of the side wall 11 so as to be openable and closable. On the inner side of the front wall 12 and the rear wall 13, a plurality of plate-like longitudinal ribs 12A for reinforcing a plurality of walls, which protrude toward the water meter M side at intervals along the lateral width direction orthogonal to the flow direction of tap water. , 13A are formed. The end faces 12a and 13a on the water meter M side of the longitudinal ribs 12A and 13A are configured as inclined surfaces that are positioned on the water meter M side toward the upper side.
底壁１０は、水道水の流れ方向上流側端部分と下流側端部分と略中央部分の３箇所に、他の部分よりも上面が低くなる第１凹部１０Ａ，第２凹部１０Ｂ，第３凹部１０Ｃを備えている。そして、３つの凹部１０Ａ，１０Ｂ，１０Ｃの厚みが同一の大きさに構成され、第１凹部１０Ａと第２凹部１０Ｂとの間の前側平坦部１０Ｄ及び第２凹部１０Ｂと第３凹部１０Ｃとの間の後側平坦部１０Ｅの厚みが、３つの凹部１０Ａ，１０Ｂ，１０Ｃの厚みよりも厚く（具体的には凹部１０Ａ，１０Ｂ，１０Ｃの厚みの２倍以上に）構成されている。このように構成することによって、ボックス５の重量増大を抑制しながらも、強度が必要となる部分の強度アップを図ることができる。 The bottom wall 10 has a first concave portion 10A, a second concave portion 10B, and a third concave portion in which the upper surface is lower than the other portions at three locations, the upstream end portion and the downstream end portion of the tap water and the substantially central portion. It is equipped with 10C. The thickness of the three recesses 10A, 10B, and 10C is configured to be the same size, and the front flat portion 10D between the first recess 10A and the second recess 10B, the second recess 10B, and the third recess 10C. The thickness of the rear flat portion 10E between them is configured to be thicker than the thickness of the three recesses 10A, 10B and 10C (specifically, twice or more the thickness of the recesses 10A, 10B and 10C). By this configuration, it is possible to increase the strength of the part requiring the strength while suppressing the weight increase of the box 5.
前壁１２の下端部における左右方向中央部に、本管１に接続される一次側給水管４を挿通可能な前側貫通孔１６が形成されている。また、後壁１３の下端部における左右方向中央部に、給水管用遮断弁７の流出側端が接続される二次側給水管８を挿通可能な後側貫通孔１７が形成されている。 A front side through hole 16 through which the primary side water supply pipe 4 connected to the main pipe 1 can be inserted is formed at the central portion in the left-right direction at the lower end of the front wall 12. Further, a rear side through hole 17 is formed in the central portion in the left-right direction at the lower end of the rear wall 13, through which the secondary water supply pipe 8 to which the outflow side end of the water supply pipe shutoff valve 7 is connected can be inserted.
また、一次側給水管４と二次側給水管８とが同軸高さ位置となるように配置されている。このように配置することによって、一次側給水管４と二次側給水管８とが高さ方向で異なる位置に配置される場合に比べて、ボックス５内での高さ方向における収容空間を小さくすることができ、高さ方向におけるボックス５の小型化を図ることができる。更に、図３においては、一次側給水管４と水道用メータＭと二次側給水管８とが同軸高さ位置となるように配置されており、一次側給水管４から水道用メータＭを通って二次側給水管８へ流れる水道水に抵抗を与えることをできるだけ少なくできる利点もある。 Moreover, the primary side water supply pipe 4 and the secondary side water supply pipe 8 are arrange | positioned so that it may become a coaxial height position. By arranging in this manner, the housing space in the height direction in the box 5 is smaller than in the case where the primary side water supply pipe 4 and the secondary side water supply pipe 8 are arranged at different positions in the height direction. The size of the box 5 in the height direction can be reduced. Furthermore, in FIG. 3, the primary water supply pipe 4, the water meter M and the secondary water supply pipe 8 are arranged at coaxial height positions, and the water meter M is connected to the water supply pipe 4 from the primary water supply pipe 4. There is also an advantage that resistance to the tap water flowing through to the secondary side water supply pipe 8 can be minimized.
止水栓６は、内部に備える弁（図示せず）を手動で開閉操作する回転ハンドル１８を備えている。回転ハンドル１８を一方向に回転操作することにより一次側給水管４からの水道水が水道用メータＭ側へ流れることを阻止するように弁を閉じ操作できる。また、回転ハンドル１８を他方向に回転操作することにより一次側給水管４からの水道水が水道用メータＭ側へ流れるように弁を開放操作できる。 The water stop valve 6 is provided with a rotary handle 18 for manually opening and closing an internally provided valve (not shown). By turning the rotary handle 18 in one direction, the valve can be closed so as to prevent the tap water from the primary water supply pipe 4 from flowing to the water meter M side. In addition, by rotating the rotary handle 18 in the other direction, the valve can be opened so that the tap water from the primary water supply pipe 4 flows to the water meter M side.
ボックス５の水道水の流れ方向上流側に配置される止水栓６と一次側給水管４とが継ぎ手１９により接続されている。また、止水栓６は、下部に備えた台座２０を介して底壁１０の前側平坦部１０Ｄに載置支持されている。この前側平坦部１０Ｄは、前述したように、３つの凹部１０Ａ，１０Ｂ，１０Ｃの厚みよりも厚くなっているので、止水栓６の重量で変形することがなく、止水栓６を良好に支持することができる。また、水道用メータＭの下面ＭＡが厚みのある後側平坦部１０Ｅに載置支持されているので、後側平坦部１０Ｅが、水道用メータＭの重量で変形することがなく、水道用メータＭを良好に支持することができる。 A water stop valve 6 disposed on the upstream side of the flow direction of the tap water of the box 5 and the primary side water supply pipe 4 are connected by a joint 19. In addition, the water stop valve 6 is mounted and supported on the front flat portion 10D of the bottom wall 10 via a pedestal 20 provided at the lower portion. Since the front flat portion 10D is thicker than the thickness of the three recesses 10A, 10B and 10C as described above, it does not deform due to the weight of the water stop valve 6, and the water stop valve 6 is favorably made It can be supported. In addition, since the lower surface MA of the water meter M is mounted on and supported by the thick rear flat portion 10E, the rear flat portion 10E is not deformed by the weight of the water meter M, and the water meter M can be supported well.
水道用メータＭの水道水の流れ方向上流側端が、止水栓６の水道水の流れ方向下流側端に備える伸縮継ぎ手２１に接続されるとともに、水道用メータＭの水道水の流れ方向下手側端が、給水管用遮断弁７の水道水の流れ方向上流側端に備える継ぎ手２２に接続される。詳述すれば、水道用メータＭの水道水流れ方向両端の外面には、螺子部が形成されており、上流側の一方の螺子部に伸縮継ぎ手２１がねじ込まれて接続され、下流側の他方の螺子部に継ぎ手２２がねじ込まれて接続される。 The flow direction upstream end of the tap water meter M is connected to the expansion joint 21 provided at the flow direction downstream end of the tap water 6 and the tap water flow direction downstream of the water meter M The side end is connected to a joint 22 provided on the upstream side in the flow direction of the tap water of the water supply pipe shutoff valve 7. If it explains in full detail, the screw part is formed in the external surface of the tap water flow direction both ends of the water meter M, and the expansion joint 21 is screwed and connected to one screw part of the upstream, The joint 22 is screwed into and connected to the screw portion of the.
また、給水管用遮断弁７と二次側給水管８とが二次側給水管８の上流側端に備えた継ぎ手２３を介して接続されている。詳述すれば、給水管用遮断弁７の弁箱部２４の水道水流れ方向下流側端部の外面には、螺子部が形成されており、この螺子部に二次側給水管８の継ぎ手２３がねじ込まれて接続される。そして、水道用メータＭの水道水流れ方向下流側の螺子部及び給水管用遮断弁７の弁箱部２４の水道水流れ方向下流側端部の螺子部が、ボックス５の内部に位置していることから、一方の螺子部に継ぎ手２３をねじ込んで接続した後、他方の螺子部に継ぎ手２２をねじ込んで接続する作業がし易く、給水管用遮断弁７の取り付けを容易に行える利点がある。また、水道用メータＭは、ボックス５の後側平坦部１０Ｅに載置支持され、二次側給水管８は、上下方向に僅かに移動できるように浮いている状態であるため、給水管用遮断弁７の下流側端の継ぎ手２３を二次側給水管８にねじ込んで接続してから、固定状態の水道用メータＭの螺子部に位置合わせしながら、ねじ込んで接続することができ、給水管用遮断弁７の接続作業を迅速に行うことができる。 Further, the water supply pipe shutoff valve 7 and the secondary side water supply pipe 8 are connected via a joint 23 provided at the upstream end of the secondary side water supply pipe 8. More specifically, a screw is formed on the outer surface of the downstream end of the valve box 24 of the water supply pipe shut-off valve 7 in the tap water flow direction, and a joint 23 of the secondary water supply pipe 8 is formed on this screw. Are screwed in and connected. The screw on the tap water flow direction downstream side of the water meter M and the screw on the tap water flow direction downstream end of the valve box 24 of the water supply pipe shut-off valve 7 are located inside the box 5. Therefore, after the joint 23 is screwed into and connected to one screw portion, the joint 22 can be easily screwed into and connected to the other screw portion, and there is an advantage that the water supply pipe shutoff valve 7 can be easily attached. Further, the water meter M is placed on and supported by the rear flat portion 10E of the box 5, and the secondary water supply pipe 8 is in a floating state so as to be slightly movable in the vertical direction. After screwing and connecting the joint 23 at the downstream end of the valve 7 to the secondary water supply pipe 8, it can be screwed and connected while being aligned with the screw portion of the fixed water meter M, for water supply pipes The connection operation of the shutoff valve 7 can be performed quickly.
給水管用遮断弁７は、図２〜図５に示すように、水道水の流れを遮断する弁体２８を内装し、流路を形成する配管に相当する弁箱部２４と、弁体２８に連結された弁軸２９を介して開放位置の弁体２８を閉じ位置へ操作する駆動機構２５が収納される駆動機構部３０と、閉じ位置へ操作された弁体２８を開放位置まで強制的に操作するための手動操作ハンドル２７とを備えている。 As shown in FIGS. 2 to 5, the water supply pipe shutoff valve 7 incorporates a valve body 28 for blocking the flow of tap water, and corresponds to a valve box 24 corresponding to a pipe forming a flow path, and the valve body 28. The drive mechanism 30 in which the drive mechanism 25 for operating the valve body 28 in the open position to the closed position via the connected valve shaft 29 is housed, and the valve body 28 operated in the closed position are forcibly forced to the open position And a manual operation handle 27 for operation.
駆動機構２５は、弁体２８を操作する動力伝達機構（図示せず）と電源供給機構（図示せず）とを備えている。動力伝達機構は、弁体２８を開放位置から閉じ位置へ操作する電動モータ（図示せず）と、電動モータに動力を伝達するギヤ機構（図示せず）とを備えている。電源供給機構は、地震により発生する所定の振動を検出する地震検知器（図示せず）と、地震検知器からの出力信号に基づいて電動モータへ電力の供給を行う電池等の電源部と、電動モータの駆動を制御する電子部品が実装された基板を有する制御部とを備えている。 The drive mechanism 25 includes a power transmission mechanism (not shown) for operating the valve body 28 and a power supply mechanism (not shown). The power transmission mechanism includes an electric motor (not shown) for operating the valve body 28 from the open position to the closed position, and a gear mechanism (not shown) for transmitting power to the electric motor. The power supply mechanism includes an earthquake detector (not shown) that detects a predetermined vibration generated by an earthquake, and a power supply unit such as a battery that supplies power to the electric motor based on an output signal from the earthquake detector. And a control unit having a substrate on which electronic components for controlling driving of the electric motor are mounted.
動力伝達機構のほとんどは、弁箱部２４とは異なる直方体形状の第１ケース２５Ｋに収納され、動力伝達機構の一部（動力を伝達するモータ）及び電源供給機構は、弁箱部２４及び第１ケース２５Ｋとは異なる直方体形状の第２ケース２６Ｋに収納されている。これら第１ケース２５Ｋと第２ケース２６Ｋとから、駆動機構部３０を構成している。電源供給機構は、水に弱い多数の電子部品を有しているため、図５に示すように、第２ケース２６Ｋの内側に更に第３ケース３１を備え、その第３ケース３１内に電源供給機構を収納している。また、第２ケース２６Ｋを第３ケース３１ごと、第１ケース２５Ｋにねじ込んで固定するためのネジ杆（図示せず）を第２ケース２６Ｋ内に備えている。このネジ杆の上端が、第２ケース２６Ｋの上端から上方へ突出している。そして、ネジ杆の突出端を覆う覆壁３２を第２ケース２６Ｋの上端に備えている。尚、覆壁３２の上端の開口部には、開口部を閉じるための取り外し可能なキャップ３３が嵌められている。 Most of the power transmission mechanism is housed in a rectangular parallelepiped first case 25K different from the valve box portion 24, and a part of the power transmission mechanism (motor for transmitting power) and the power supply mechanism are the valve box portion 24 and It is accommodated in a second case 26K having a rectangular parallelepiped shape different from the one case 25K. The drive mechanism unit 30 is configured of the first case 25K and the second case 26K. Since the power supply mechanism has many electronic parts that are weak in water, as shown in FIG. 5, the third case 31 is further provided inside the second case 26K, and power is supplied in the third case 31. It houses the mechanism. In addition, a screw rod (not shown) for screwing and fixing the second case 26K together with the third case 31 to the first case 25K is provided in the second case 26K. The upper end of the screw rod projects upward from the upper end of the second case 26K. A cover 32 is provided on the upper end of the second case 26K to cover the projecting end of the screw rod. A removable cap 33 for closing the opening is fitted to the opening at the upper end of the cover 32.
図２、図４及び図５に示すように、駆動機構部３０の厚み方向の寸法Ｄ１が左右幅方向の寸法Ｓ１よりも小さな寸法に構成され、駆動機構部３０の厚み方向が水道水の流れ方向に向くように、駆動機構部３０を弁箱部２４の上面２４ａに配置している。実際には、駆動機構部３０の厚み方向の寸法Ｄ１を左右幅方向の寸法Ｓ１の半分以下に構成している。また、駆動機構部３０の高さ方向（上下方向）の寸法Ｓ２が左右幅方向の寸法Ｓ１よりも小さな寸法に構成され、かつ、駆動機構部３０の高さ方向（縦方向）の寸法Ｓ２よりも厚み方向の寸法Ｄ１が小さな寸法に構成されている。 As shown in FIGS. 2, 4 and 5, the dimension D1 in the thickness direction of the drive mechanism 30 is smaller than the dimension S1 in the lateral width direction, and the thickness direction of the drive mechanism 30 is the flow of tap water The drive mechanism 30 is disposed on the upper surface 24 a of the valve box 24 so as to face in the direction. In practice, the dimension D1 in the thickness direction of the drive mechanism portion 30 is configured to be half or less of the dimension S1 in the lateral width direction. Further, the dimension S2 in the height direction (vertical direction) of the drive mechanism portion 30 is smaller than the dimension S1 in the lateral width direction, and from the dimension S2 in the height direction (longitudinal direction) of the drive mechanism portion 30 Also, the dimension D1 in the thickness direction is configured to be small.
実際には、給水管用遮断弁７における水道水の流れ方向の寸法、つまり駆動機構部３０の厚み方向の寸法Ｄ１を２００ｍｍ以内に設定している。更に詳述すれば、弁箱部２４の流入口の端面から流出口の端面までの寸法Ｌ１を、６８．５ｍｍに設定している。また、弁箱部２４の上方に配置した駆動機構部３０の厚み方向（図３では水道水の流れ方向）の第１寸法Ｄ１を、６７ｍｍに設定し、駆動機構部３０の厚み方向二次側給水管８側端面から弁箱部２４の流出口側端面までの第２寸法Ｄ２を、１３ｍｍに設定している。従って、水道水の流れ方向における給水管用遮断弁７の寸法が最大となる寸法、第１寸法Ｄ１＋第２寸法Ｄ２を、８０ｍｍに設定しており、２００ｍｍの半分よりも小さな寸法になっている。また、この給水管用遮断弁７の寸法に対して、ボックス５の水道水の流れ方向の内部寸法Ｌ２が、４６０ｍｍ（水道用メータＭの口径が２０ｍｍの場合）になっている。このボックス５の内部寸法Ｌ２は、水道用メータＭの口径寸法によって変更される。 In practice, the dimension in the flow direction of the tap water in the water supply pipe shutoff valve 7, that is, the dimension D1 in the thickness direction of the drive mechanism 30 is set to 200 mm or less. More specifically, the dimension L1 from the end face of the inlet of the valve box 24 to the end face of the outlet is set to 68.5 mm. Further, the first dimension D1 in the thickness direction (the flow direction of the tap water in FIG. 3) of the drive mechanism 30 disposed above the valve box 24 is set to 67 mm, and the thickness direction secondary side of the drive mechanism 30 is set. The second dimension D2 from the water supply pipe 8 side end face to the outlet side end face of the valve box portion 24 is set to 13 mm. Accordingly, the first dimension D1 + the second dimension D2 is set to 80 mm, which is smaller than half of 200 mm, at which the dimension of the water supply pipe shutoff valve 7 in the flow direction of the tap water becomes maximum. Moreover, the internal dimension L2 of the flow direction of the tap water of the box 5 is 460 mm (when the diameter of the water meter M is 20 mm) with respect to the dimension of the shutoff valve 7 for water supply pipes. The internal dimension L2 of the box 5 is changed by the aperture size of the water meter M.
例えば口径寸法が１３ｍｍの水道用メータＭ（水道水の流れ方向の寸法が１００ｍｍ）に対して３２０ｍｍの内部寸法のボックス５が用いられる。また、口径寸法が２０ｍｍの水道用メータＭ（水道水の流れ方向の寸法が１９０ｍｍ）及び口径寸法が２５ｍｍの水道用メータＭ（水道水の流れ方向の寸法が２２５ｍｍ）に対して４６０ｍｍの内部寸法のボックス５が用いられる。また、口径寸法が３０ｍｍの水道用メータＭ（水道水の流れ方向の寸法が２３０ｍｍ）及び口径寸法が４０ｍｍの水道用メータＭ（水道水の流れ方向の寸法が２４５ｍｍ）に対して５２０ｍｍの内部寸法のボックス５が用いられ、口径寸法が５０ｍｍの水道用メータＭ（水道水の流れ方向の寸法が４２０ｍｍ）に対して８５０ｍｍの内部寸法のボックス５が用いられる。また、口径寸法が７５ｍｍの水道用メータＭ（水道水の流れ方向の寸法が６３０ｍｍ）に対して１１００ｍｍの内部寸法のボックス５が用いられる。従って、ボックス５の内部寸法から各水道用メータＭの寸法を差し引いても２００ｍｍを超える寸法となるため、給水管用遮断弁７の寸法を２００ｍｍ以内に設定することによって、前記範囲となる３２０ｍｍ〜１１００ｍｍの範囲の内部寸法のボックス５であれば、水道用メータＭと給水管用遮断弁７をボックス５内に確実に収容することができる。このように、水道水の流れ方向における給水管用遮断弁の寸法を２００ｍｍ以内に設定することで、既存の水道用メータを収容するボックスが使用でき、専用ボックスを作るよりも資材費用を安くできる利点がある。因みに、内部寸法が、３２０ｍｍ〜１１００ｍｍの範囲のボックスは、左右幅寸法が、１７０ｍｍ〜６５０ｍｍの範囲で、高さ寸法が１８０ｍｍ〜６５０ｍｍの範囲となる。 For example, a box 5 with an internal dimension of 320 mm is used for a water meter M with a bore dimension of 13 mm (a dimension in the flow direction of tap water of 100 mm). In addition, internal dimensions of 460 mm for a water meter M with a bore size of 20 mm (190 mm in the flow direction of tap water) and a water meter M with a bore size of 25 mm (a dimension of 225 mm in the flow of tap water) Box 5 is used. In addition, internal dimensions of 520 mm for a water meter M with a bore size of 30 mm (230 mm in the flow direction of tap water) and a water meter M with a bore size of 40 mm (a dimension in the flow direction of tap water of 245 mm) The box 5 with an internal dimension of 850 mm is used for a water meter M having a bore size of 50 mm (a dimension in the flow direction of tap water is 420 mm). Moreover, the box 5 of the internal dimension of 1100 mm is used with respect to the meter M (a dimension of the flow direction of a tap water of 630 mm) whose aperture dimension is 75 mm. Accordingly, even if the dimensions of each water meter M are subtracted from the internal dimensions of the box 5, the dimensions exceed 200 mm. Therefore, setting the dimensions of the water supply pipe shutoff valve 7 within 200 mm makes the above range 320 mm to 1100 mm. If it is the box 5 of the internal dimension of the range of (1), the water meter M and the shutoff valve 7 for water supply pipes can be reliably accommodated in the box 5. Thus, by setting the size of the shutoff valve for the water supply pipe in the flow direction of the tap water to 200 mm or less, the box for accommodating the existing water meter can be used, and the material cost can be reduced compared to making a dedicated box. There is. By the way, a box with an internal dimension in the range of 320 mm to 1100 mm has a lateral width dimension in the range of 170 mm to 650 mm and a height dimension in the range of 180 mm to 650 mm.
また、図４に示すように、駆動機構部３０の水道水の流れ方向における中心位置Ｃ１が、弁箱部２４の水道水の流れ方向における中心位置Ｃ２に対して水道用メータＭ側に位置ずれている。このずれ量としては、実際には１３ｍｍに設定しているが、どのような値に設定してもよい。このようにボックス５の端に位置する二次側給水管８に給水管用遮断弁７を接続する際に、ボックス５の二次側給水管８側の端から駆動機構部３０を少しでも遠ざけることができ、接続作業を容易に行うことができる。また、第２ケース２６Ｋの二次側給水管８側の端面２６Ｔを上方に向うほど水道用メータＭ側に位置する傾斜面に構成していることによって、図３に示すように、ボックス５の縦リブ１３Ａから更に遠ざけることができる。 Further, as shown in FIG. 4, the central position C1 of the drive mechanism 30 in the flow direction of the tap water is displaced to the water meter M side with respect to the central position C2 of the valve box 24 in the flow direction of the tap water. ing. Although this deviation amount is actually set to 13 mm, it may be set to any value. When connecting the water supply pipe shutoff valve 7 to the secondary water supply pipe 8 located at the end of the box 5 as described above, keep the drive mechanism portion 30 slightly away from the end of the box 5 on the secondary side water supply pipe 8 side. Connection work can be easily performed. Further, as shown in FIG. 3, the end face 26T of the second case 26K on the side of the secondary side water supply pipe 8 is an inclined surface positioned on the water meter M side as it goes upward, as shown in FIG. It can be further distanced from the longitudinal rib 13A.
また、給水管用遮断弁７は、その下面、具体的には弁箱部２４の下面２４Ａが、水道用メータＭの下面ＭＡよりも上方に位置するように配置されている。従って、給水管用遮断弁７を取り付ける際に、給水管用遮断弁７の下面２４Ａがボックス５の底部である底壁１０の上面に当接することがなく、取り付け作業を確実に、かつ容易に行うことができる。具体的には、図２に示すように、ボックス５の底壁１０の凹部１０Ｃの上面１０Ｕが、水道用メータＭの下面ＭＡが当接している後側平坦部１０Ｅよりも下方に位置しているため、弁箱部２４の下面２４Ａとボックス５の凹部１０Ｃの上面１０Ｕとの距離を大きく確保することができ、給水管用遮断弁７の取り付け作業をより一層容易に行うことができる利点がある。 Further, the shutoff valve 7 for water supply pipe is disposed such that the lower surface thereof, specifically, the lower surface 24A of the valve box portion 24, is located above the lower surface MA of the water meter M. Therefore, when the water supply pipe shutoff valve 7 is attached, the lower surface 24A of the water supply pipe shutoff valve 7 is not in contact with the upper surface of the bottom wall 10 which is the bottom of the box 5, and the attachment work is performed reliably and easily. Can. Specifically, as shown in FIG. 2, the upper surface 10U of the recess 10C of the bottom wall 10 of the box 5 is positioned lower than the rear flat portion 10E with which the lower surface MA of the water meter M is in contact. Therefore, the distance between the lower surface 24A of the valve box portion 24 and the upper surface 10U of the recess 10C of the box 5 can be secured large, and the mounting operation of the water supply pipe cutoff valve 7 can be performed more easily. .
前記のように構成された給水管用遮断弁７について説明すれば、地震により所定の大きさの振動が発生して地震検知器が検知すると、制御部は、駆動機構２５に駆動信号を出力する。すると、給水管用遮断弁７の弁が閉じることによって、水道水の流れを遮断し、断水となる。自治体の職員は、遮断後に本管１の復旧を行う前に、本管１の水圧検査を行う。このとき、水圧が本管１から一次側給水管４（水道用メータＭ）までの間に加わる。これによって、本管１又は一次側給水管４あるいはそれら両方の良否（損傷しているか否か）を直ちに確認することができる。尚、水圧検査は、所定の水圧を加えて所定時間経過しても所定圧よりも低い圧力である場合に、不合格と判断し、所定の水圧を加えて所定時間経過しても所定圧を維持している場合には、合格と判断する。または、上流側から通水し管内を満水にし、水の流れが止まらなければ不合格と判断し、止まれば合格と判断してもよい。 In the water supply pipe shutoff valve 7 configured as described above, when the earthquake detector detects a vibration of a predetermined magnitude due to an earthquake, the control unit outputs a drive signal to the drive mechanism 25. Then, when the valve of the water supply pipe shutoff valve 7 is closed, the flow of tap water is shut off and the water is shut off. The staff of the local government performs the water pressure inspection of the main 1 before the restoration of the main 1 after the shutoff. At this time, water pressure is applied between the main pipe 1 and the primary water supply pipe 4 (water meter M). By this, it is possible to immediately confirm the quality (whether or not it is damaged) of the main pipe 1 and / or the primary side water supply pipe 4 or both of them. In the water pressure inspection, if the pressure is lower than the predetermined pressure even after the predetermined water pressure is applied, it is judged as a rejection, and the predetermined pressure is applied even after the predetermined time passes by applying the predetermined water pressure. If it is maintained, it will be judged as pass. Alternatively, water may be supplied from the upstream side to fill the pipe, and if the flow of water does not stop, it may be judged as a rejection, and if it stops, it may be judged as a pass.
即ち、水圧検査結果が合格である場合には、本管１から一次側給水管４（水道用メータＭ）までの間には、管の破損がなく良好であることを確認できる。また、水圧検査結果が不合格である場合には、本管１から一次側給水管４までの間には、管の破損があり不良であることを確認できる。尚、水圧検査結果が合格である場合に、二次側給水管８（需要者宅内の給水管）側の良否を確認したい場合には、二次側給水管８に水圧を加えて水圧検査を行うことによって確認できる。 That is, when the water pressure test result is a pass, there is no breakage of the pipe from the main pipe 1 to the primary-side water supply pipe 4 (water meter M), and it is possible to confirm that it is good. Moreover, when a water pressure test result is rejection, between the main pipe 1 and the primary side water supply pipe 4, it is possible to confirm that the pipe is broken and it is defective. In addition, when it is desired to confirm the quality of the secondary water supply pipe 8 (water supply pipe in the customer's house) side when the water pressure inspection result is a pass, the water pressure is added to the secondary water supply pipe 8 to perform water pressure inspection. It can be confirmed by doing.
尚、本発明は、上記実施形態に限定されるものではなく、本発明の要旨を逸脱しない範囲で種々の変更が可能である。 The present invention is not limited to the above embodiment, and various modifications can be made without departing from the scope of the present invention.
例えば、前記実施形態では、水道用メータＭと二次側給水管８との間に給水管用遮断弁７を設けたが、一次側給水管４と水道用メータＭとの間に給水管用遮断弁７を設けてもよい。 For example, although the water supply pipe shutoff valve 7 is provided between the water meter M and the secondary water supply pipe 8 in the above embodiment, the water supply pipe shutoff valve is disposed between the primary water supply pipe 4 and the water meter M 7 may be provided.
また、前記実施形態では、止水栓６を設けたが、省略してもよい。この場合、給水管用遮断弁７を地震時以外の何時でも止水することができるように開放位置から閉じ位置へ操作できる構成にしておくことが好ましい。この給水管用遮断弁７の開放位置から閉じ位置への操作は、電動力又は手動操作力を用いることになる。 Moreover, although the water stop valve 6 was provided in the said embodiment, you may abbreviate | omit. In this case, it is preferable that the water supply pipe shutoff valve 7 be configured to be operable from the open position to the closed position so that the water shutoff valve 7 can be stopped at any time except during an earthquake. The operation from the open position to the closed position of the water supply pipe shutoff valve 7 uses electric power or manual operation power.
また、前記実施形態では、給水管用遮断弁７をバッテリや電池等の電力を用いて駆動機構２５を駆動して開放位置から閉じ位置へ切り替えるように電動式に構成したが、渦巻きバネからなるゼンマイ式に構成してもよい。 In the above embodiment, the water supply pipe shutoff valve 7 is electrically driven to drive the drive mechanism 25 using electric power from a battery, battery or the like to switch from the open position to the closed position. It may be configured into a formula.
また、前記実施形態では、給水管用遮断弁７を、それの下面２４Ａが水道用メータＭの下面ＭＡよりも上方に位置するように配置したが、給水管用遮断弁７の下面２４Ａが、ボックス５の底壁１０の上面に当たることがないように、給水管用遮断弁７の下面２４Ａに相当する底壁１０の上面を下方へ位置させることによって、給水管用遮断弁７を、それの下面２４Ａが水道用メータＭの下面ＭＡと同じ位置又は水道用メータＭの下面ＭＡよりも下方に位置するように配置することもできる。 In the above embodiment, the water supply pipe shutoff valve 7 is disposed such that the lower surface 24A of the water supply pipe is located above the lower surface MA of the water meter M, but the lower surface 24A of the water supply pipe shutoff valve 7 is box 5 By positioning the upper surface of the bottom wall 10 corresponding to the lower surface 24A of the water supply pipe shutoff valve 7 downward so that the lower surface 24A of the water supply pipe is not It can also be disposed at the same position as the lower surface MA of the meter M or below the lower surface MA of the water meter M.
また、前記実施形態では、一次側給水管４と二次側給水管８とを同軸高さ位置となるように配置したが、両方の給水管４．８を高さが異なるように配置してもよい。 Moreover, in the said embodiment, although the primary side water supply pipe 4 and the secondary side water supply pipe 8 were arrange | positioned so that it may become coaxial height position, both water supply pipes 4.8 are arrange | positioned so that heights may differ. It is also good.
また、前記実施形態では、平面視において矩形状のボックス５を設けたが、楕円状、小判状、台形状、円形状、多角形状等、どのような形状のボックス５であってもよい。 Moreover, in the said embodiment, although the rectangular box 5 was provided in planar view, the box 5 of what kind of shapes, such as elliptical shape, oval shape, trapezoidal shape, circular shape, polygonal shape, etc., may be sufficient.
また、前記実施形態では、弁体２８を開放位置まで強制的に操作するための手動操作ハンドル２７を設けたが、省略して、弁体２８を開放位置まで動力を用いて操作する電動モータや電磁ソレノイド等のアクチュエータを設けて実施することになる。また、図５では、左右幅方向の寸法Ｓ１や高さ方向（縦方向）の寸法Ｓ２を、手動操作ハンドル２７を含めず、第２ケース２６Ｋの左右幅方向の寸法や第１ケース２５Ｋと第２ケース２６Ｋの寸法のみとしたが、手動操作ハンドル２７の寸法も含めた寸法としてもよい。このように、手動操作ハンドル２７の寸法も含めた左右幅方向の寸法Ｓ１や高さ方向（縦方向）の寸法Ｓ２とした場合でも、給水管用遮断弁７をボックス内に収容することができる。 Further, although the manual operation handle 27 for forcibly operating the valve body 28 to the open position is provided in the above embodiment, an electric motor or the like for operating the valve body 28 to the open position using power is omitted. An actuator such as an electromagnetic solenoid is provided and implemented. Further, in FIG. 5, the dimension S1 in the lateral width direction and the dimension S2 in the height direction (longitudinal direction) do not include the manual operation handle 27, but the dimensions in the lateral width direction of the second case 26K and the first case 25K and the first case 25K Although only the size of the case 26K is used, the size including the size of the manual operation handle 27 may be used. As described above, even in the case of the dimension S1 in the lateral width direction including the dimension of the manual operation handle 27 and the dimension S2 in the height direction (vertical direction), the water supply pipe shutoff valve 7 can be accommodated in the box.
また、前記実施形態では、給水管用遮断弁７を、弁箱部２４と駆動機構部３０とを別々の部分から構成したが、一体化して１つの部分から構成してもよい。また、駆動機構部３０を、弁箱部２４の上面２４ａに配置した第１ケース２５Ｋと、第１ケース２５Ｋの上面に配置した第２ケース２６Ｋの２つのケースから構成したが、図６に示すように、１つの（図６では、直方体状になっているが、どのような形状であってもよい）ケース３４から構成されていてもよい。このケース３４の厚み方向の寸法Ｄ１、左右幅方向の寸法Ｓ１、高さ方向の寸法Ｓ２は、前記実施形態と同様に、Ｄ１＜Ｓ２＜Ｓ１に設定されている。図に示す２４Ｋは、弁箱部２４に形成した流入口である。また、図６では、弁箱部２４の上面２４ａに、駆動機構部３０を配置したが、図７に示すように、弁箱部２４の横一側（左右幅方向左側又は右側）に駆動機構部３０を収納するケース３５を駆動機構部３０の厚み方向が水道水の流れ方向に向くように配置してもよい。このケース３５の厚み方向の寸法Ｄ１、左右幅方向の寸法Ｓ１、高さ方向の寸法Ｓ２は、前記実施形態と同様に、Ｄ１＜Ｓ２＜Ｓ１に設定されている。また、弁箱部２４の横一側（左右幅方向左側又は右側）に弁箱部２４と略同一高さに構成された第１ケースと第１ケース及び弁箱部２４上に跨る第２ケースとから駆動機構部３０を構成してもよい。 Moreover, in the said embodiment, although the cutoff valve 7 for water supply pipes was comprised from the valve box part 24 and the drive mechanism part 30 from a separate part, you may integrate and comprise from one part. In addition, although the drive mechanism portion 30 is constituted by two cases of a first case 25K disposed on the upper surface 24a of the valve box portion 24 and a second case 26K disposed on the upper surface of the first case 25K, as shown in FIG. Thus, it may be composed of one case 34 (in FIG. 6, it has a rectangular parallelepiped shape, but may have any shape). The dimension D1 in the thickness direction, the dimension S1 in the lateral width direction, and the dimension S2 in the height direction of the case 34 are set to D1 <S2 <S1 as in the above embodiment. 24 K shown in the figure is an inlet formed in the valve box portion 24. Moreover, in FIG. 6, although the drive mechanism part 30 was arrange | positioned on the upper surface 24a of the valve box part 24, as shown in FIG. 7, the drive mechanism is one side (left width direction or right side) of the valve box part 24. You may arrange | position the case 35 which accommodates the part 30 so that the thickness direction of the drive mechanism part 30 may turn to the flow direction of tap water. The dimension D1 in the thickness direction, the dimension S1 in the lateral width direction, and the dimension S2 in the height direction of the case 35 are set to D1 <S2 <S1 as in the embodiment described above. In addition, the first case and the first case, which are configured to have substantially the same height as the valve box 24 on the lateral side (left side or right side in the lateral width direction) of the valve box 24, the second case straddles over the first case and the valve box 24 The drive mechanism unit 30 may be composed of
また、前記実施形態では、給水管用遮断弁７の端部に螺子部を設けて継手に接続したが、フランジを設けて接続したり、筒状部を設けて嵌合し止め輪やクリップ状部品やビスなどで接続してもよい。 Moreover, in the said embodiment, although the screw part was provided in the edge part of the cutoff valve 7 for water supply pipes, and it connected to a coupling, it provides and connects a flange, provides a cylindrical part and fits and it is a snap ring and clip-like components It may be connected by a screw or the like.
そして、前記実施形態の給水管構造は、本管に接続される一次側給水管と、前記一次側給水管の水道水の流出側端部に接続される水道用メータの水道水の流出側端部に接続される二次側給水管と、前記一次側給水管と前記水道用メータとの間又は前記水道用メータと前記二次側給水管との間に配置され、地震により発生する所定の大きさの振動により作動して水道水の流れを遮断する給水管用遮断弁と、該給水管用遮断弁及び前記水道用メータを収容可能なボックスと、を設けていてもよい。 And the water supply pipe structure of the said embodiment is the outflow side end of the tap water of the water meter connected to the primary side water supply pipe connected to the main pipe, and the outflow side end of the tap water of the said primary side water supply pipe. Between the water supply pipe connected to the secondary side, the primary water supply pipe and the water meter, or between the water meter and the secondary water supply pipe, and generated by earthquake A shutoff valve for a water supply pipe which operates by vibration of size to shut off the flow of tap water, and a box capable of accommodating the shutoff valve for the water supply pipe and the water meter may be provided.
この構成によれば、地震により所定の大きさの振動が発生すると、給水管用遮断弁が水道水の流れを遮断し、二次側給水管への水道水の供給が停止する。
この状態で、本管から一次側給水管へ通水して、本管から一次側給水管までの間の水圧検査を行うことができる。水圧検査の結果が合格であれば、本管及び一次側給水管が良好であることがわかる。また、水圧検査結果が不合格であれば、本管又は一次側給水管あるいはそれら両方が不良である（例えば破損している）ことがわかる。また、二次側給水管へ通水して水圧検査を行うことによって、二次側給水管の良否（例えば破損しているか否か）がわかる。
According to this configuration, when vibrations of a predetermined magnitude occur due to an earthquake, the feed water pipe shut-off valve shuts off the flow of tap water, and the supply of tap water to the secondary side water feed pipe is stopped.
In this state, water can be supplied from the main pipe to the primary water supply pipe, and a water pressure test can be performed between the main pipe and the primary water supply pipe. If the result of the water pressure test is a pass, it is understood that the main and the primary water supply pipe are good. In addition, if the water pressure test result is a failure, it is known that the main pipe and / or the primary water supply pipe or both are defective (for example, broken). Moreover, by passing water to the secondary side water supply pipe and performing a water pressure inspection, it is possible to know whether the secondary side water supply pipe is good (for example, whether it is damaged or not).
また、前記実施形態の給水管構造は、前記給水管用遮断弁を、その下面が前記水道用メータの下面よりも上方に位置するように配置していてもよい。 Moreover, the water supply pipe structure of the said embodiment may arrange | position the said water supply pipe cutoff valve so that the lower surface may be located above rather than the lower surface of the said water meter.
上記のように、給水管用遮断弁を、その下面が前記水道用メータの下面よりも上方に位置するように配置しておけば、給水管用遮断弁を取り付ける際に、給水管用遮断弁の下面がボックスの底部の上面に当接することがなく、取り付け作業を確実に、かつ容易に行うことができる。 As described above, if the shutoff valve for water supply pipe is disposed so that the lower surface thereof is positioned above the lower surface of the water meter, the lower surface of the shutoff valve for water supply pipe is attached when the shutoff valve for water supply pipe is attached. There is no contact with the upper surface of the bottom of the box, and the mounting operation can be performed reliably and easily.
また、前記実施形態の給水管構造は、前記一次側給水管と前記二次側給水管とが同軸高さ位置となるように配置されていてもよい。 Moreover, the water supply pipe structure of the said embodiment may be arrange | positioned so that the said primary side water supply pipe and the said secondary side water supply pipe may become a coaxial height position.
上記のように、一次側給水管と二次側給水管とを同軸高さ位置となるように配置しておけば、一次側給水管と二次側給水管とを高さ方向で異なる位置に配置する場合に比べて、ボックス内での高さ方向における収容空間を小さくすることができ、高さ方向におけるボックスの小型化を図ることができる。 As described above, if the primary side water supply pipe and the secondary side water supply pipe are arranged at the coaxial height position, the primary side water supply pipe and the secondary side water supply pipe may be located at different positions in the height direction. As compared with the case of arranging, the housing space in the height direction in the box can be made smaller, and the box can be miniaturized in the height direction.
また、前記実施形態の給水管構造は、前記一次側給水管と前記水道用メータとの間に水道水の流れを止めるための止水栓が配置され、前記水道用メータと前記二次側給水管との間に前記給水管用遮断弁が配置されていてもよい。 In the water supply pipe structure of the embodiment, a water stop valve for stopping the flow of tap water is disposed between the primary side water supply pipe and the water supply meter, and the water supply meter and the secondary water supply The water supply pipe shutoff valve may be disposed between the pipe and the pipe.
また、前記実施形態の給水管構造は、前記給水管用遮断弁における水道水の流れ方向の寸法を２００ｍｍ以内に設定していることが好ましい。 Moreover, it is preferable that the dimension of the flow direction of the tap water in the water supply pipe structure of the said embodiment in the said water supply pipe | tube cutoff valve is set within 200 mm.
上記のように、給水管用遮断弁における水道水の流れ方向の寸法を２００ｍｍ以内に設定しておけば、既存の水道用メータを収容するボックス内に水道用メータと給水管用遮断弁の双方を収容することが可能になる。 As described above, if the dimension in the flow direction of the tap water in the shutoff valve for water supply pipe is set within 200 mm, both the water meter and the shutoff valve for water supply pipe are accommodated in the box that accommodates the existing water meter. It will be possible to
また、前記実施形態の給水管構造は、前記給水管用遮断弁が、電動弁からなり、前記電動弁が、水道水の流れを遮断する弁体を備える弁箱部と、前記弁体に連結された弁軸を介して該弁体を前記弁箱部内で開閉操作させる駆動機構が収納される駆動機構部とを備え、前記駆動機構部の厚み方向の寸法が左右幅方向の寸法よりも小さな寸法に構成され、前記駆動機構部の厚み方向が水道水の流れ方向に向くように、該駆動機構部を前記弁箱部の上方に配置していてもよい。 In the water supply pipe structure of the embodiment, the water supply pipe shutoff valve is an electrically operated valve, and the electrically operated valve is connected to the valve body including a valve body for blocking the flow of tap water, and the valve body And a drive mechanism portion for accommodating a drive mechanism for opening and closing the valve body in the valve box portion via the valve shaft, the dimension in the thickness direction of the drive mechanism portion being smaller than the dimension in the lateral width direction The drive mechanism may be disposed above the valve box so that the thickness direction of the drive mechanism is directed to the flow direction of the tap water.
上記のように、左右幅方向の寸法よりも小さな寸法に構成されている駆動機構部の厚み方向が水道水の流れ方向に向くように、駆動機構部を弁箱部の上方に配置しておけば、水道水の流れ方向における駆動機構部のスペースを小さく抑えることができ、給水管用遮断弁をボックス内に収容し易くなる。 As described above, the drive mechanism portion may be disposed above the valve box portion so that the thickness direction of the drive mechanism portion configured to be smaller than the dimension in the lateral width direction faces the flow direction of tap water. For example, the space of the drive mechanism in the flow direction of the tap water can be kept small, and the water supply pipe shutoff valve can be easily accommodated in the box.
また、前記実施形態の給水管構造は、前記給水管用遮断弁が、電動弁からなり、前記電動弁が、水道水の流れを遮断する弁体を備える弁箱部と、前記弁体に連結された弁軸を介して該弁体を前記弁箱部内で開閉操作させる駆動機構が収納される駆動機構部とを備え、前記駆動機構部の厚み方向の寸法が左右幅方向の寸法よりも小さな寸法に構成され、前記駆動機構部の厚み方向が水道水の流れ方向に向くように、該駆動機構部を前記弁箱部の横一側に配置していてもよい。 In the water supply pipe structure of the embodiment, the water supply pipe shutoff valve is an electrically operated valve, and the electrically operated valve is connected to the valve body including a valve body for blocking the flow of tap water, and the valve body And a drive mechanism portion for accommodating a drive mechanism for opening and closing the valve body in the valve box portion via the valve shaft, the dimension in the thickness direction of the drive mechanism portion being smaller than the dimension in the lateral width direction The drive mechanism portion may be disposed on one side of the valve box portion such that the thickness direction of the drive mechanism portion is directed to the flow direction of the tap water.
上記のように、左右幅方向の寸法よりも小さな寸法に構成されている駆動機構部の厚み方向が水道水の流れ方向に向くように、駆動機構部を弁箱部の横一側に配置しておけば、水道水の流れ方向における駆動機構部のスペースを小さく抑えることができ、給水管用遮断弁をボックス内に収容し易くなる。 As described above, the drive mechanism is disposed on one side of the valve box so that the thickness direction of the drive mechanism configured to be smaller than the dimension in the lateral width direction faces the flow direction of tap water. If it keeps, the space of the drive mechanism part in the flow direction of tap water can be kept small, and it becomes easy to accommodate the shutoff valve for water supply pipes in a box.
また、前記実施形態の給水管構造は、前記駆動機構部の水道水の流れ方向における中心位置が、前記弁箱部に対して前記水道用メータ側にずれていてもよい。 In the water supply pipe structure of the embodiment, the central position of the drive mechanism in the flow direction of the tap water may be shifted to the water meter side with respect to the valve box.
上記のように、駆動機構部の水道水の流れ方向における中心位置が、弁箱部に対して水道用メータ側にずれていれば、ボックスの端に位置する一次側給水管又は二次側給水管に給水管用遮断弁を接続する際に、ボックスの端から駆動機構部を少しでも遠ざけることができ、接続作業を容易に行うことができる。 As described above, if the central position of the drive mechanism in the flow direction of the tap water is shifted to the water meter side with respect to the valve box, the primary water supply pipe or the secondary water supply located at the end of the box When connecting the water supply pipe shutoff valve to the pipe, the drive mechanism can be slightly removed from the end of the box, and the connection work can be easily performed.
１…本管、２…遮断弁、２Ａ…手動式の仕切弁、３…給水管構造、４…一次側給水管、５…ボックス、６…止水栓、７…給水管用遮断弁、８…二次側給水管、９…蓋、１０…底壁、１０Ａ，１０Ｂ，１０Ｃ…凹部、１０Ｄ…前側平坦部、１０Ｅ…後側平坦部、１０Ｕ…上面、１１…側壁、１１Ａ…上方開口、１２…前壁、１２Ａ，１３Ａ…縦リブ、１２ａ，１３ａ…端面、１３…後壁、１４…左側壁、１５…右側壁、１６…前側貫通孔、１７…後側貫通孔、１８…回転ハンドル、１９…継ぎ手、２０…台座、２１，２２，２３…継ぎ手、２４…弁箱部、２４Ａ…下面、２４Ａ…下面、２５…駆動機構、２５Ｋ…第１ケース、２６Ｋ…第２ケース、２６Ｔ…端面、２７…手動操作ハンドル、２８…弁体、２９…弁軸、３０…駆動機構部、３１…第３ケース、３２…覆壁、３３…キャップ、Ｄ１…厚み方向の寸法、Ｈ…需要者宅、Ｌ１…寸法、Ｍ…水道用メータ、ＭＡ…下面、Ｓ１…左右幅方向の寸法、Ｓ２…高さ方向の寸法 DESCRIPTION OF SYMBOLS 1 ... Main pipe, 2 ... Shut-off valve, 2A ... Manual gate valve, 3 ... Water supply pipe structure, 4 ... Primary side water supply pipe, 5 ... Box, 6 ... Water stop valve, 7 ... Cut-off valve for water supply pipe, 8 ... Secondary side water supply pipe, 9 ... lid, 10 ... bottom wall, 10A, 10B, 10C ... recessed part, 10D ... front flat part, 10E ... rear flat part, 10U ... top face, 11 ... side wall, 11A ... top opening, 12 ... front wall, 12A, 13A ... longitudinal rib, 12a, 13a ... end face, 13 ... rear wall, 14 ... left side wall, 15 ... right side wall, 16 ... front side through hole, 17 ... rear side through hole, 18 ... rotating handle, DESCRIPTION OF SYMBOLS 19 ... Joint, 20 ... Base, 21, 22, 23 ... Joint, 24 ... Valve box part, 24A ... Lower surface, 24A ... Lower surface, 25 ... Drive mechanism, 25K ... 1st case, 26K ... 2nd case, 26T ... End surface , 27: manual operation handle, 28: valve body, 29: valve shaft, 30: drive mechanism portion, 31: ... 3 Case, 32: Covered wall, 33: Cap, D1: Size in the thickness direction, H: Consumer home, L1: Size, M: Water meter, MA: Bottom surface, S1: Width in the width direction, S2: High Vertical dimension
Claims (5)
前記一次側給水管の水道水の流出側端部に接続される水道用メータの水道水の流出側端部に接続される二次側給水管と、
前記一次側給水管と前記水道用メータとの間又は前記水道用メータと前記二次側給水管との間に配置され、地震検知器を収納し、地震により発生する所定の大きさの振動を前記地震検知器が検出することで作動して水道水の流れを遮断する給水管用遮断弁と、
該給水管用遮断弁及び前記水道用メータを収容可能であり地中に埋設されるボックスと、
を設けたことを特徴とする給水管構造。 Primary side water supply pipe connected to the main,
A secondary water supply pipe connected to the outflow side end of the tap water meter connected to the outflow side end of the tap water on the primary side water supply pipe;
It is disposed between the primary side water supply pipe and the water supply meter or between the water supply meter and the secondary side water supply pipe, accommodates an earthquake detector, and has a predetermined magnitude of vibration generated by the earthquake. A shutoff valve for a water supply pipe that operates to shut off the flow of tap water when the earthquake detector detects it;
A box capable of accommodating the water supply pipe shutoff valve and the water meter and buried in the ground;
Water supply pipe structure characterized by
前記弁箱部の水道水の流れ方向における中心位置が、前記弁軸に対して前記水道用メータ側にずれており、
前記駆動機構部の水道水の流れ方向における中心位置が、前記弁箱部における前記中心位置に対して前記水道用メータ側にずれていることを特徴とする請求項１に記載の給水管構造。 The water supply pipe shutoff valve is a motorized valve, and the motorized valve is a valve box portion provided with a valve body for blocking the flow of tap water, and the valve body is a valve body connected to the valve body via the valve shaft. And a drive mechanism unit in which a drive mechanism for opening and closing operations in the box unit is accommodated;
The center position of the valve box portion in the flow direction of the tap water is shifted to the water meter side with respect to the valve shaft,
The water supply pipe structure according to claim 1, wherein a center position of the drive mechanism portion in the flow direction of the tap water is shifted to the water meter side with respect to the center position of the valve box portion.
前記水道用メータは、水道水の流れ方向下手側端に螺子部を備え、
前記継ぎ手は、前記水道用メータの前記螺子部にねじ込まれて接続されることを特徴とする請求項１又は２に記載の給水管構造。 The water supply pipe shutoff valve is disposed between the water meter and the secondary water supply pipe, and has a joint at the upstream end in the flow direction of the tap water,
The water meter has a screw at the downstream end of the flow direction of the tap water,
The water supply pipe structure according to claim 1 or 2, wherein the joint is screwed and connected to the screw portion of the water meter.
前記ボックスは、水道水の流れ方向上流側に位置する側壁と水道水の流れ方向下流側に位置する側壁との内側に形成され、前記水道用メータ側へ突出する複数の縦リブを備え、
前記複数の縦リブの各々における前記水道用メータ側の端面は、上方に向うほど水道用メータ側に位置する傾斜面であり、
前記駆動機構を収納するケースは、水道水の流れ方向下流側の端面につき、上方に向うほど水道用メータ側に位置する傾斜面を備えることを特徴とする請求項１〜３のうちのいずれか１項に記載の給水管構造。 The water supply pipe shutoff valve comprises a motorized valve, and the motorized valve includes a valve box portion provided with a valve body for blocking the flow of tap water, and the valve body via the valve shaft connected to the valve body. And a drive mechanism unit in which a drive mechanism for opening and closing operations in the box unit is accommodated;
The box is formed on the inner side of a side wall located on the upstream side in the flow direction of tap water and a side wall located on the downstream side in the flow direction of tap water, and includes a plurality of longitudinal ribs projecting toward the water meter side.
The end face on the water meter side of each of the plurality of longitudinal ribs is an inclined surface located on the water meter side as it goes upward,
The case which accommodates the said drive mechanism is provided with the inclined surface located in the water meter side as it goes upwards, about the end surface of the flow direction downstream of tap water, It is characterized by the above-mentioned. The water supply pipe structure according to item 1.
前記給水管用遮断弁は、前記止水栓よりも高い位置に配置されている、請求項１〜４のうちのいずれか１項に記載の給水管構造。 A stopcock for stopping the flow of tap water is arranged between the primary water supply pipe and the water meter,
The water supply pipe structure according to any one of claims 1 to 4, wherein the water supply pipe shutoff valve is disposed at a position higher than the water stop valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2018215739A JP6686105B2 (en) | 2018-11-16 | 2018-11-16 | Water pipe structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2018215739A JP6686105B2 (en) | 2018-11-16 | 2018-11-16 | Water pipe structure |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2014045213A Division JP6463896B2 (en) | 2014-03-07 | 2014-03-07 | Water supply pipe structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2019065694A true JP2019065694A (en) | 2019-04-25 |
| JP6686105B2 JP6686105B2 (en) | 2020-04-22 |
Family
ID=66339356
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2018215739A Active JP6686105B2 (en) | 2018-11-16 | 2018-11-16 | Water pipe structure |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP6686105B2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2021130995A (en) * | 2020-02-21 | 2021-09-09 | 株式会社栗本鐵工所 | Automated drainage device |
| JP2022085334A (en) * | 2020-11-27 | 2022-06-08 | 有限会社樋口水道 | Temporary faucet and water supply temporary construction method of the same |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09242918A (en) * | 1996-03-04 | 1997-09-16 | Maezawa Ind Inc | Emergency shut-off valve |
| JP2001289343A (en) * | 2000-04-05 | 2001-10-19 | Hitachi Valve Ltd | Emergency cutoff valve and emergency cutoff valve group |
| JP2001289347A (en) * | 2000-04-06 | 2001-10-19 | Toyo Autom Kk | Emergency cutoff valve with service water supply mechanism for water reservoir in emergency of earthquake |
| JP2002195908A (en) * | 2000-12-26 | 2002-07-10 | Matsushita Electric Ind Co Ltd | Water supply system |
| JP2009138376A (en) * | 2007-12-04 | 2009-06-25 | Kitz Corp | Method of mounting meter box builtin type meter unit and structure of the meter unit |
| JP4878962B2 (en) * | 2006-08-29 | 2012-02-15 | 株式会社大京アステージ | Emergency shut-off valve device |
-
2018
- 2018-11-16 JP JP2018215739A patent/JP6686105B2/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09242918A (en) * | 1996-03-04 | 1997-09-16 | Maezawa Ind Inc | Emergency shut-off valve |
| JP2001289343A (en) * | 2000-04-05 | 2001-10-19 | Hitachi Valve Ltd | Emergency cutoff valve and emergency cutoff valve group |
| JP2001289347A (en) * | 2000-04-06 | 2001-10-19 | Toyo Autom Kk | Emergency cutoff valve with service water supply mechanism for water reservoir in emergency of earthquake |
| JP2002195908A (en) * | 2000-12-26 | 2002-07-10 | Matsushita Electric Ind Co Ltd | Water supply system |
| JP4878962B2 (en) * | 2006-08-29 | 2012-02-15 | 株式会社大京アステージ | Emergency shut-off valve device |
| JP2009138376A (en) * | 2007-12-04 | 2009-06-25 | Kitz Corp | Method of mounting meter box builtin type meter unit and structure of the meter unit |
Non-Patent Citations (1)
| Title |
|---|
| "マンション住戸専用の「緊急遮断弁」で特許を取得", ＮＥＷＳ ＲＥＬＥＡＳＥ ＤＡＩＫＹＯ, JPN6019048220, 7 March 2012 (2012-03-07), pages 1 - 3, ISSN: 0004170279 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2021130995A (en) * | 2020-02-21 | 2021-09-09 | 株式会社栗本鐵工所 | Automated drainage device |
| JP7050833B2 (en) | 2020-02-21 | 2022-04-08 | 株式会社栗本鐵工所 | Automatic drainage device |
| JP2022085334A (en) * | 2020-11-27 | 2022-06-08 | 有限会社樋口水道 | Temporary faucet and water supply temporary construction method of the same |
| JP7097425B2 (en) | 2020-11-27 | 2022-07-07 | 有限会社樋口水道 | Temporary faucet and its water supply temporary construction method |
Also Published As
| Publication number | Publication date |
|---|---|
| JP6686105B2 (en) | 2020-04-22 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP2019065694A (en) | Water-supply pipe structure | |
| JP5847914B2 (en) | Fire hydrant equipment | |
| JP5777313B2 (en) | Fire hydrant equipment | |
| JP6095061B2 (en) | Fire hydrant equipment | |
| JP6463896B2 (en) | Water supply pipe structure | |
| US20110248199A1 (en) | Electronic water main shutoff | |
| EP2353693A1 (en) | Device for preventing leakage from water purifier | |
| JP6012544B2 (en) | Fire hydrant apparatus and its installation method | |
| JP6587342B2 (en) | Repair valve | |
| JP6388571B2 (en) | Fire hydrant equipment | |
| JP6586265B2 (en) | Water supply structure | |
| JP2009509352A (en) | Transformer conservator shut-off valve | |
| KR101559681B1 (en) | Stem valve assembly | |
| US9500284B2 (en) | Gate valve | |
| US20110023984A1 (en) | Water supply apparatus for branching water pipe capable of controlling water supply | |
| JP6460663B2 (en) | Shut-off valve | |
| KR200311771Y1 (en) | Tool of opening and shutting for control valve | |
| JP5773853B2 (en) | Pressure reducing valve and mounting method of pressure reducing valve | |
| JP2008196203A (en) | Water receiving control device for water supply system | |
| KR200432047Y1 (en) | Apparatus for connecting the mechanical timer for the gas supply pipe | |
| JP2013148191A (en) | Automatic valve and method of opening/closing the same | |
| US20220325824A1 (en) | Hinge Nut for Meter Coupling Valve | |
| JP6284994B2 (en) | Fire hydrant equipment | |
| JP7004308B2 (en) | Electric drain plug device | |
| Anguiano et al. | Advanced Pressure Regulating Valve Installation, Commissioning, and Preliminary Testing: Lessons Learned, Energy and Water Project |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A621 | Written request for application examination |
Free format text: JAPANESE INTERMEDIATE CODE: A621 Effective date: 20181214 |
|
| A131 | Notification of reasons for refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A131 Effective date: 20191213 |
|
| A521 | Request for written amendment filed |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20200212 |
|
| TRDD | Decision of grant or rejection written | ||
| A01 | Written decision to grant a patent or to grant a registration (utility model) |
Free format text: JAPANESE INTERMEDIATE CODE: A01 Effective date: 20200319 |
|
| A61 | First payment of annual fees (during grant procedure) |
Free format text: JAPANESE INTERMEDIATE CODE: A61 Effective date: 20200401 |
|
| R150 | Certificate of patent or registration of utility model |
Ref document number: 6686105 Country of ref document: JP Free format text: JAPANESE INTERMEDIATE CODE: R150 |
|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |