JP2827099B2 - Temporary stopcock at the end of the opening for water pipe - Google Patents
Temporary stopcock at the end of the opening for water pipeInfo
- Publication number
- JP2827099B2 JP2827099B2 JP7288110A JP28811095A JP2827099B2 JP 2827099 B2 JP2827099 B2 JP 2827099B2 JP 7288110 A JP7288110 A JP 7288110A JP 28811095 A JP28811095 A JP 28811095A JP 2827099 B2 JP2827099 B2 JP 2827099B2
- Authority
- JP
- Japan
- Prior art keywords
- opening
- fitting
- pipe
- water
- water pipe
- 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 - Lifetime
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L55/00—Devices or appurtenances for use in, or in connection with, pipes or pipe systems
- F16L55/10—Means for stopping flow from or in pipes or hoses
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Domestic Plumbing Installations (AREA)
- Pipe Accessories (AREA)
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、建築物の建築途中
において床や壁の内部に配管される上水道管の開口先端
部に予め螺合嵌入させて上水道管の通水試験を行う仮止
水栓に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a temporary stopcock for performing a water flow test on a water pipe by screwing it into a front end of an opening of a water pipe to be piped inside a floor or a wall during construction of the building. It is about.
【０００２】[0002]
【従来の技術】建築物の基礎工事や躯体工事等が終了し
た建築工事現場では、壁等を構築する前の段階で工事の
段取りとして上水道管が予め配管され、その開口先端部
は、台所や風呂場等の水を使用する部分で蛇口となる位
置に立ち上げた状態で配置されており、内装工事等がほ
とんど終了後に蛇口等の上水道器具を装着することにな
る。2. Description of the Related Art At a construction site where the foundation work and skeleton work of a building have been completed, a water supply pipe is preliminarily plumbed as a work preparation before a wall or the like is constructed. It is placed in a standing state at a position where a faucet is used in a part where water is used, such as a bathroom, and a water supply device such as a faucet will be installed after almost all interior work is completed.
【０００３】しかし、建築工事中には様々な事情でこの
予め配管された上水道管が破損することがあり、破損し
たままの状態で内装工事を進めて、完成してから上水道
管に通水すると、破損事実が判明しなかったり、漏水個
所が不明であったり、更には漏水個所が判明しても補修
が困難だったりする。[0003] However, during the construction work, the pre-plumbed water pipe may be damaged due to various circumstances. However, the fact of damage is unknown, the location of the leak is unknown, and even if the leak is found, repair is difficult.
【０００４】このため、上水道管を予め配管した状態で
通水して水圧をかけた通水試験を行い、内装等の工事中
に誤って上水道管を破損したような場合に、直ちにその
事実を発見し補修できるようにしている。[0004] For this reason, a water flow test is conducted by applying water pressure while water is supplied in a state where the water pipe is piped in advance, and if the water pipe is accidentally damaged during construction of an interior or the like, the fact is immediately recognized. So that they can be found and repaired.
【０００５】しかし、建築物の内装が完了してない段階
であるから、上水道管の開口先端部に蛇口等を装着して
おく訳にはいかず、従ってこの開口先端部には漏水がな
いように仮止水栓を漏水不能に嵌入装着する。[0005] However, since the interior of the building has not been completed, a faucet or the like cannot be installed at the tip of the opening of the water supply pipe, so that there is no water leakage at the tip of the opening. Insert the temporary stopcock so that it cannot leak.
【０００６】この仮止水栓は、上水道管の開口先端部に
螺合嵌入する嵌合筒部に拡径のプラグ部を連設し、内部
に止水用隔壁を設けて閉鎖された構成であるが、工事作
業時の水道器具取り付け位置の目安や壁の厚み等の関係
で、プラグ部の部分は数センチほど横方向に突出した構
造となっている。[0006] This temporary water stopcock has a configuration in which a plug having an increased diameter is continuously connected to a fitting cylindrical portion which is screw-fitted into the opening end of the water pipe, and a water stop partition is provided inside and closed. However, the plug portion has a structure that protrudes several centimeters in the horizontal direction due to the guideline of the water supply fitting position at the time of construction work and the thickness of the wall.
【０００７】そして、この仮止水栓は、廉価であるこ
と、軽量であること、錆びないこと、取り扱い易いこ
と、上水道管の開口先端部を漏水不能に螺合させること
などの理由から、比較的安価な合成樹脂で成形されてい
る。[0007] The temporary stopcock is comparatively inexpensive, lightweight, rust-proof, easy to handle, and has a water pipe that has an open end that is screwed so as not to leak water. It is molded with an inexpensive synthetic resin.
【０００８】[0008]
【発明が解決しようとする課題】しかしながら、上述し
たようにプラグ部の部分は数センチほど横方向に突出し
た構造となっているので、大工工事や左官工事等の内装
工事の過程では格好の足場になることが多く、この部分
に作業者の体重がかかるため、折損事故が絶えなかっ
た。However, as described above, since the plug portion has a structure projecting laterally by several centimeters, it is a good scaffold in the process of interior construction work such as carpentry work or plastering work. In many cases, the weight of the worker was applied to this part, and the breakage accident was not stopped.
【０００９】このため、特にプラグ部の部分を厚肉にし
て強度を高める等の対策がとられてきたが、折損部分は
殆どの場合、プラグ部と嵌合筒部との境界部分に発生し
ているので効果がなく、上水道管の開口先端部内に嵌合
筒部のみが残存してしまい、この嵌合筒部が外れなくな
るという問題もあった。For this reason, measures have been taken to increase the strength by increasing the thickness of the plug portion in particular. However, in most cases, the broken portion is generated at the boundary between the plug portion and the fitting cylinder portion. Therefore, there is also a problem that only the fitting tube portion remains in the front end of the opening of the water supply pipe, and the fitting tube portion does not come off.
【００１０】そして、嵌合筒部の外周面に刻設されてい
る雄螺子は、プラグ部との連続部分である嵌合筒部の基
端部にまで設けられている。したがって、プラグ部の部
分に作業者の体重等の負荷や衝撃が加わると、嵌合筒部
の外周面に刻設された螺子の谷部が機械的にノッチ現象
を果たしてしまい、外部からの衝撃が梃子作用となって
螺子部の一点に直接集中する。折損原因の殆どは、この
ノッチ現象による衝撃の一点集中にあり、このため、プ
ラグ部と嵌合筒部との連続部分で折損してしまうのであ
る。The male screw engraved on the outer peripheral surface of the fitting cylinder is provided up to the base end of the fitting cylinder which is a continuous portion with the plug. Therefore, when a load such as the weight of an operator or an impact is applied to the plug portion, the thread valley formed on the outer peripheral surface of the fitting cylinder portion mechanically performs a notch phenomenon, and an external impact is applied. Acts as a lever and concentrates directly on one point of the screw part. Most of the cause of the breakage is at one point concentration of the impact due to the notch phenomenon, so that the breakage occurs at a continuous portion between the plug portion and the fitting tube portion.
【００１１】一方、上水道管と仮止水栓との間の止水手
段は、従来一般にシールテープを螺子部に巻装すること
によって構成されている。しかしながら、シールテープ
の巻装作業は熟練技術が必要であると共に手間暇の係る
作業であった。そこで、特開平７−１２０３４８号公報
による配水管の水洩れ試験用止水プラグのように、把手
部に突設したネジ軸部に嵌装したリングパッキンによ
り、上水道管の雌螺子部よりも外側で止水するようにし
たものが提案されている。On the other hand, the water stopping means between the water supply pipe and the temporary stopcock is conventionally generally constituted by winding a seal tape around a screw portion. However, the operation of winding the seal tape requires a skill and requires much time and labor. Therefore, like a waterproof plug for water leakage test of a water distribution pipe disclosed in Japanese Patent Application Laid-Open No. 7-120348, a ring packing fitted on a screw shaft portion protruding from a handle portion is provided outside a female screw portion of a water pipe. It has been proposed to stop the water at the end.
【００１２】しかしながら、従来のリングパッキンを利
用した仮止水栓は、上水道管の端面と仮止水栓の端面と
の間にリングパッキンを挟着する構成である。このため
充分な止水効果が得られていないのが現状である。即
ち、上水道管の端面が平滑でないため、リングパッキン
との間に隙間が生じ易い。また、端面にバリ等が生じて
いるとリングパッキンに傷が付き易く、この傷が原因で
リングパッキンが破損する事故が発生している。本発明
は上記に鑑み提案されたもので、シールテープを用いる
ことなく確実な止水効果を得ると共に、強度を高めた仮
止水栓を提供することを目的とする。However, the conventional temporary stopcock using a ring packing has a structure in which the ring packing is sandwiched between the end face of the water pipe and the end face of the temporary stopcock. Therefore, at present, a sufficient water stopping effect is not obtained. That is, since the end surface of the water pipe is not smooth, a gap is easily formed between the water pipe and the ring packing. Further, if burrs or the like are generated on the end face, the ring packing is easily damaged, and the damage has caused an accident that the ring packing is damaged. The present invention has been proposed in view of the above, and it is an object of the present invention to provide a temporary water stopcock having an improved strength while obtaining a reliable water stop effect without using a seal tape.
【００１３】[0013]
【課題を解決するための手段】上記課題を解決するため
請求項１に記載した発明は、建築物の建築途中の上水道
管の開口先端部に開口端面側が拡径する面取部を形成
し、この開口先端部に螺合嵌入させて上水道管の通水試
験を行う仮止水栓であって、開口先端部内に螺合嵌入す
る嵌合筒部と、該嵌合筒部に連設して設けた拡径するプ
ラグ部とを備え、前記嵌合筒部とプラグ部とが連続する
嵌合筒部の基端部分に、前記面取部の外周径よりも小径
で且つ内周径よりも大径な押圧嵌入部を形成し、上記押
圧嵌入部の前端部分にリング状のシール材を嵌め込み、
前記嵌合筒部を上水道管の開口先端部に螺合嵌入させた
ときに、上記シール材が開口先端部の開口端縁に形成し
た面取部に圧接してシール材により止水可能となし、プ
ラグ部の端面と上水道管の開口先端部の端面との間に間
隙が生じるようにしたものである。Means for Solving the Problems To solve the above-mentioned problems, the invention described in claim 1 is to form a chamfer at the opening end portion of the water pipe in the middle of the building, the diameter of the opening end surface expanding, A temporary stopcock for screw-fitting into the opening tip to perform a water flow test on the water supply pipe, and a fitting tube portion screw-fitting into the opening tip, and connected to the fitting tube portion. Provided at the base end portion of the fitting tube portion where the fitting tube portion and the plug portion are continuous with each other, with a smaller diameter than the outer diameter of the chamfered portion and a smaller diameter than the inner diameter. Form a large-diameter press-fit portion, fit a ring-shaped seal material into the front end of the press-fit portion,
When the fitting tube is screwed into the opening end of the water pipe, the sealing material is in pressure contact with a chamfer formed at the opening edge of the opening end so that water cannot be stopped by the sealing material. A gap is formed between the end face of the plug portion and the end face of the opening end of the water pipe.
【００１４】また、請求項２に記載した発明は、上水道
管の開口先端部を、雌螺子を形成した金属製の螺子管を
装着した樹脂管によって形成し、上記面取部を螺子管の
開口端縁に形成したものである。According to a second aspect of the present invention, the opening end of the water supply pipe is formed by a resin pipe having a metal screw pipe formed with a female screw, and the chamfer is formed by opening the screw pipe. It is formed at the edge.
【００１５】[0015]
【発明の実施の形態】以下に本発明の実施の形態を図面
に基づいて詳細に説明すると、建築物の工事現場で予め
配管される上水道管１の開口先端部には、通常ではＬ型
継手２が螺合装着されており、このＬ型継手２の開口端
部内面には雌螺子３が形成されている。また、このＬ型
継手２の雌螺子３の開口縁、或は上水道管１の開口先端
部には、開口端面側が拡径する傾斜した面取部４が形成
されている。尚、この面取部４の傾斜角や仕上等はＪＩ
Ｓ規格によって定められており、規格に則って製造され
て検定を合格した製品でなければ、使用することができ
ない。また、Ｌ型継手２内には、水道水が金属部分に触
れるのを防ぐ目的で合成樹脂製の内管を嵌め込んでおい
てもよい。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described below in detail with reference to the drawings. In general, an L-shaped joint is provided at an opening end of a water pipe 1 previously piped at a construction site of a building. A female screw 3 is formed on the inner surface of the open end of the L-shaped joint 2. An inclined chamfered portion 4 whose diameter is increased at the opening end face is formed at the opening edge of the female screw 3 of the L-shaped joint 2 or at the opening end of the water pipe 1. The angle of inclination and finish of the chamfered part 4 are determined by JI
It is determined by the S standard and cannot be used unless it is manufactured according to the standard and has passed the certification. In addition, an inner pipe made of a synthetic resin may be fitted into the L-shaped joint 2 for the purpose of preventing tap water from touching a metal part.
【００１６】本発明に係る仮止水栓５は、比較的硬質
で、強度に優れた合成樹脂で成形され、Ｌ型継手２内に
嵌入してその雌螺子３に螺合する雄螺子６を形成した嵌
合筒部７の端部に、拡径したプラグ部８を一体に連設し
た構造である。The temporary stopcock 5 according to the present invention is formed of a relatively hard synthetic resin having excellent strength, and is provided with a male screw 6 which is fitted into the L-shaped joint 2 and screwed into the female screw 3 thereof. This is a structure in which a plug portion 8 having an increased diameter is integrally connected to an end of the formed fitting tube portion 7.
【００１７】図示の実施形態では、嵌合筒部７とプラグ
部８の連続部内に止水用の隔壁７１を設け、前記したよ
うに内部に内管が存在するＬ型継手２にも対応できるよ
うに構成してある。即ち、Ｌ型継手２内に嵌合した嵌合
筒部７の内部に内管が嵌入できるようになっており、嵌
合筒部７をＬ型継手２の開口端から強固に螺合嵌入して
も、内管が損傷してしまうことがない。一方、内管が存
在しない継手にのみ対応させる場合には、隔壁７１を嵌
合筒部７の嵌入先端部分に設けることもできる。In the illustrated embodiment, a partition wall 71 for stopping water is provided in a continuous portion of the fitting tube portion 7 and the plug portion 8 so as to be able to cope with the L-shaped joint 2 having an inner pipe therein as described above. It is configured as follows. That is, the inner tube can be fitted into the fitting tube 7 fitted into the L-shaped joint 2, and the fitting tube 7 is firmly screwed into the L-shaped joint 2 from the open end of the L-shaped joint 2. However, the inner tube is not damaged. On the other hand, in the case where only the joint having no inner tube is used, the partition wall 71 may be provided at the fitting front end portion of the fitting cylindrical portion 7.
【００１８】前記嵌合筒部７の端部とプラグ部８とが連
続する嵌合筒部７の基端部分には、外径ｄ1 が前記した
面取部４の外周径Ｄ1 よりも小径で且つ内周径Ｄ2 より
も大径な押圧嵌入部７２を形成する。また、この押圧嵌
入部７２に連続して当該押圧嵌入部７２よりも小径で、
嵌合筒部７の雄螺子６の谷部分と同等または谷部分より
深い外径ｄ2 を有する環状溝部７３を形成する。そし
て、この環状溝部７３内にはゴム等の弾性材で成形され
た外径ｐを有するリング状のシール材９を、パッキン材
及びクッション材として嵌め込む。このシール材９の外
径ｐは、前記した面取部４の外径ｄ1 より大径で有ると
共に、面取部４の外周径Ｄ1 よりは小径である。尚、上
記各径の関係を整理すると、ｄ2≦Ｄ2＜ｄ1＜ｐ≦Ｄ1
となっている。At the base end of the fitting cylinder 7 where the end of the fitting cylinder 7 and the plug 8 are continuous, the outer diameter d1 is smaller than the outer diameter D1 of the chamfer 4 described above. Further, a press fitting portion 72 having a diameter larger than the inner peripheral diameter D2 is formed. Further, the diameter is smaller than the press-fitting portion 72 continuously to the press-fitting portion 72,
An annular groove 73 having an outer diameter d2 equal to or deeper than the valley of the male screw 6 of the fitting cylinder 7 is formed. A ring-shaped sealing material 9 having an outer diameter p and formed of an elastic material such as rubber is fitted into the annular groove 73 as a packing material and a cushion material. The outer diameter p of the sealing material 9 is larger than the outer diameter d1 of the chamfered portion 4 and smaller than the outer diameter D1 of the chamfered portion 4. Incidentally, when the relationship between the above diameters is arranged, d2 ≦ D2 <d1 <p ≦ D1
It has become.
【００１９】また、上記リング状のシール材９は断面が
円形であるが、Ｌ型継手２内の雌螺子３と嵌合筒部７の
雄螺子６とを螺合させてＬ型継手２内に嵌合筒部７を螺
合嵌合させた際、Ｌ型継手２の開口端縁に形成した面取
部４の斜面４１と、対向する押圧嵌入部７２の前端面、
即ち環状溝部７３の内端面との間に挟持されて圧力を受
けると或る程度潰れてパッキン効果及びクッション効果
を発揮する。このとき、本発明においては、押圧嵌入部
７２の外径ｄ1 が面取部４の外周径Ｄ1 よりも小さく、
面取部４の内周径ｄ2 よりは大きいと共に、シール材９
の外径ｐが押圧嵌入部７２の外径ｄ1 よりも大径である
ので、シール材９を面取部４に対して確実に押圧すると
共に、シール材９が斜面４１に密接して楔状に作用し、
シール効果を遺憾なく発揮する。The ring-shaped sealing material 9 has a circular cross section. However, the female screw 3 in the L-shaped joint 2 and the male screw 6 in the fitting cylinder 7 are screwed together to form the inside of the L-shaped joint 2. When the fitting cylindrical portion 7 is screw-fitted to the opening, the slope 41 of the chamfered portion 4 formed at the opening edge of the L-shaped joint 2 and the front end face of the opposing press fitting portion 72,
That is, when it is sandwiched between the inner end surface of the annular groove 73 and is subjected to pressure, it is crushed to a certain extent to exhibit a packing effect and a cushion effect. At this time, in the present invention, the outer diameter d1 of the press fitting portion 72 is smaller than the outer diameter D1 of the chamfered portion 4,
The inner diameter d2 of the chamfer 4 is larger than the inner diameter d2,
Is larger than the outer diameter d1 of the press-fitting portion 72, so that the sealing material 9 is reliably pressed against the chamfered portion 4, and the sealing material 9 comes into close contact with the slope 41 to form a wedge. Act,
Demonstrate the sealing effect.
【００２０】また、図示の実施の形態では、Ｌ型継手２
内に雌螺子３と雄螺子６とを螺合させて嵌合筒部７に螺
合嵌合させたとき、プラグ部８の端面とＬ型継手２の開
口先端部の端面との間に間隙ｌが生じているので、Ｌ型
継手２の端面の仕上がりが粗雑であって凹凸が存在する
ような場合であっても、充分なシール効果が得られる。
また、端面にバリ等が生じていても、シール材９には接
触しないので、シール材９が傷付いたり、この傷が原因
でシール材９が破損することがない。In the illustrated embodiment, the L-shaped joint 2
When the female screw 3 and the male screw 6 are screwed into each other and screwed into the fitting cylinder 7, a gap is formed between the end surface of the plug portion 8 and the end surface of the opening end of the L-shaped joint 2. Since l occurs, a sufficient sealing effect can be obtained even when the finish of the end face of the L-shaped joint 2 is rough and irregularities are present.
Further, even if burrs or the like are generated on the end face, the sealing material 9 does not come into contact with the sealing material 9, so that the sealing material 9 is not damaged and the sealing material 9 is not damaged due to the scratch.
【００２１】そして、この押圧力を受けてシール材９が
外方に弾性変形しようとしても、面取部４の斜面４１に
よってシール材９の外方向への変形が防止される。ま
た、前記したように変形しようとするシール材９が斜面
４１に密接して楔状に作用するので、シール材９による
パッキン効果及びクッション効果が著しく増加する。Even if the sealing material 9 is elastically deformed outward by receiving the pressing force, the sealing material 9 is prevented from being deformed outward by the inclined surface 41 of the chamfered portion 4. Further, since the sealing material 9 to be deformed is in close contact with the slope 41 and acts like a wedge as described above, the packing effect and the cushioning effect of the sealing material 9 are significantly increased.
【００２２】一方、前記したプラグ部８は、Ｌ型継手２
の外径とほぼ同一の外径であり、前端部分を六角形状に
して、仮止水栓５をＬ型継手２に螺合嵌入する場合、及
び外す場合に、レンチ等の工具を係合させて回転し易く
する六角形状部８１が形成してある。On the other hand, the above-mentioned plug portion 8 is
When the front end portion is formed in a hexagonal shape and the temporary stopper 5 is screwed into and removed from the L-shaped joint 2, a tool such as a wrench is engaged. A hexagonal portion 81 is formed to facilitate rotation.
【００２３】しかし、建築物の壁Ａ等の施工時にＬ型継
手２を通す開口部Ｂを開設する際、この開口部Ｂの直径
はＬ型継手２の周面に接する位にできるだけ小さい方が
望ましいのであるが、先端部分の対角線の長さがプラグ
部８の外周より大きいと、前記開口部Ｂの開口直径も大
きくならざるを得ない。そこで、図示の実施形態では、
プラグ部８の先端部分の六角形状部８１の対角線の長さ
を、プラグ部８の外形とほゞ等しくなるように形成して
いる。However, when opening the opening B through which the L-shaped joint 2 is to be opened at the time of constructing the wall A of a building or the like, the diameter of the opening B should be as small as possible at a position in contact with the peripheral surface of the L-shaped joint 2. Desirably, if the length of the diagonal line at the distal end portion is larger than the outer circumference of the plug portion 8, the opening diameter of the opening portion B must be increased. Therefore, in the illustrated embodiment,
The diagonal length of the hexagonal portion 81 at the tip of the plug portion 8 is formed so as to be substantially equal to the outer shape of the plug portion 8.
【００２４】尚、図示実施形態では、嵌合筒部７とプラ
グ部８との連続部内に設けた止水用の隔壁７１の中央部
に***部７４を設けている。この***部７４は隔壁７１
の強度をより確保するためのもので、外部からの衝撃に
対し、当該部分での破損を防止するための機能を果た
す。In the illustrated embodiment, a raised portion 74 is provided at the center of a partition wall 71 for stopping water provided in a continuous portion of the fitting tube portion 7 and the plug portion 8. The bulge 74 is a partition 71
It functions to further secure the strength of the device, and functions to prevent damage to the portion in response to an external impact.
【００２５】また、プラグ部８の内部奥端には多角形状
の空部８２を有し、多角形レンチの先端部を挿着して仮
止水栓５を回転できるようにしているので、上水道管１
の開口先端部に螺合嵌入した仮止水栓５を強く締めつけ
たり、または外したりすることができる。Further, since a polygonal hollow portion 82 is provided at the inner rear end of the plug portion 8 so that the temporary stopper 5 can be rotated by inserting the tip of a polygonal wrench, the water supply Tube 1
The temporary stopcock 5 screwed into the front end of the opening can be strongly tightened or removed.
【００２６】図５は、本発明の他の実施形態を示す断面
図であり、この実施形態では、上水道管１の開口先端部
を樹脂管によって形成し、面取部４を当該樹脂管の開口
端縁に形成したものである。FIG. 5 is a sectional view showing another embodiment of the present invention. In this embodiment, the opening end of the water pipe 1 is formed by a resin pipe, and the chamfered section 4 is formed by the opening of the resin pipe. It is formed at the edge.
【００２７】即ち、上水道管１の開口先端部を、合成樹
脂で成形した段付パイプ１１内に真鍮等の錆難い金属で
形成した螺子管１２を装着した直管継手２１により形成
したものである。That is, the open end of the water pipe 1 is formed by a straight pipe joint 21 in which a screw pipe 12 made of a non-rusting metal such as brass is mounted in a stepped pipe 11 made of synthetic resin. .
【００２８】段付パイプ１１は、一端側が拡径して、こ
の拡径した側に、内周面に雌螺子３を有する螺子管１２
をインサート成形等により装着して構成する。そして、
この雌螺子３の開口端縁に、前記した実施の形態と同様
に、規格に沿って面取部４を形成する。One end of the stepped pipe 11 has an enlarged diameter, and a threaded pipe 12 having an internal thread 3 on the inner peripheral surface is provided on the enlarged diameter side.
Is mounted by insert molding or the like. And
A chamfered portion 4 is formed on the opening edge of the female screw 3 in accordance with the standard as in the above-described embodiment.
【００２９】一方、上記のような樹脂管に螺合嵌合させ
る仮止水栓５は、前記したように開口先端部内に螺合嵌
入する嵌合筒部７と、該嵌合筒部７に連設して設けた拡
径するプラグ部８とを備え、嵌合筒部７の端部とプラグ
部８とが連続する嵌合筒部７の基端部分には、外径ｄ1
が面取部４の外周径Ｄ1 よりも小径で且つ内周径Ｄ2よ
りも大径な押圧嵌入部７２を形成する。また、この押圧
嵌入部７２に連続して当該押圧嵌入部７２よりも小径
で、嵌合筒部７の雄螺子６の谷部分と同等または谷部分
より深い外径ｄ2 を有する環状溝部７３を形成する。そ
して、この環状溝部７３内にはゴム等の弾性材で成形さ
れた外径ｐのリング状のシール材９を、パッキン材及び
クッション材として嵌め込む。On the other hand, the temporary stopcock 5 screw-fitted to the resin pipe as described above is provided with the fitting tube 7 screwed into the opening end as described above, and the fitting tube 7 An outer diameter d1 is provided at the base end of the fitting cylinder 7 where the end of the fitting cylinder 7 and the plug 8 are continuous with each other.
Form a press fitting portion 72 having a diameter smaller than the outer diameter D1 of the chamfered portion 4 and larger than the inner diameter D2. Further, an annular groove 73 having a smaller diameter than the press-fitting portion 72 and having an outer diameter d2 equal to or deeper than the valley of the male screw 6 of the fitting cylinder portion 7 is formed continuously with the press-fitting portion 72. I do. A ring-shaped sealing material 9 having an outer diameter p formed of an elastic material such as rubber is fitted into the annular groove 73 as a packing material and a cushion material.
【００３０】上記のような構成の樹脂管に本発明に係る
仮止水栓５を適用しても、シール材９を押圧嵌入部７２
によって確実に押圧すると共に、シール材９が面取部４
の斜面４１に密接して楔状に作用してシール効果を遺憾
なく発揮する。また、直管継手２１の端面に凹凸やバリ
等が存在していても、シール効果が損なわれることがな
く、シール材９が破損することもない。更に、押圧力を
受けてシール材９が外方に弾性変形しようとしても、こ
の変形を面取部４の斜面４１が防止すると共に、斜面４
１に密接して楔状に作用するのでパッキン効果及びクッ
ション効果が著しく増大する。Even if the temporary stopcock 5 according to the present invention is applied to the resin tube having the above-described structure, the sealing member 9 is pressed into the press fitting portion 72.
The sealing material 9 is securely pressed by the chamfer 4
And acts like a wedge in close contact with the inclined surface 41 to exhibit the sealing effect without regret. Further, even if unevenness or burrs are present on the end face of the straight pipe joint 21, the sealing effect is not impaired, and the sealing material 9 is not damaged. Further, even if the sealing material 9 is elastically deformed outward by the pressing force, the slope 41 of the chamfer 4 prevents this deformation, and the slope 4
1 and acts in a wedge shape, so that the packing effect and the cushion effect are significantly increased.
【００３１】以上、本発明を図面の実施形態に基づいて
説明したが、本発明は上記した実施形態に限定されるも
のではなく、特許請求の範囲に記載の構成を変更しない
限りどのようにでも実施することができる。例えば、図
示の実施の形態では、Ｌ型継手や直管継手を介して、上
水道管に仮止水栓を取り付けているが、上水道管の端部
に仮止水栓を直接取り付けることもできる。As described above, the present invention has been described based on the embodiments of the drawings. However, the present invention is not limited to the above-described embodiments, and may be any method unless the structure described in the claims is changed. Can be implemented. For example, in the illustrated embodiment, the temporary stopcock is attached to the water pipe via an L-shaped joint or a straight pipe joint. However, the temporary stopcock can be directly attached to the end of the water pipe.
【００３２】[0032]
【発明の効果】以上要するに本発明によれば、建築物の
建築途中における上水道管の通水試験中、水圧の掛かっ
た水道水は止水用隔壁によって止水され、螺子部分から
の漏水も嵌合筒部のシール材が面取部の斜面に密着して
確実に防止される。また、面取部の斜面によりシール材
の外方への広がり変形が防止される。In summary, according to the present invention, during the water flow test of the water supply pipe during the construction of the building, the tap water under the water pressure is stopped by the water blocking partition wall, and the leakage from the screw portion is also included. The sealing material of the joint tube portion is securely adhered to the slope of the chamfered portion, and is reliably prevented. In addition, the slope of the chamfer prevents the sealing material from spreading outward and deforming.
【００３３】一方、嵌合筒部の雄螺子部とプラグ部との
間には押圧嵌入部が形成されていて螺子部とプラグ部と
の連続性が絶たれているので、ノッチ現象が生じにくく
なり、外部からの衝撃が螺子部の一点に集中することが
ないため、プラグ部と嵌合筒部との連続部分での折損が
確実に防止され、リング状のシール材は外部から衝撃が
生じた場合のクッションとしても機能し、衝撃を緩衝し
て折損が確実に防止される。On the other hand, since a press-fitting portion is formed between the male screw portion and the plug portion of the fitting cylindrical portion and the continuity between the screw portion and the plug portion is broken, the notch phenomenon is less likely to occur. Since the external impact does not concentrate on one point of the screw part, breakage at the continuous part between the plug part and the fitting cylinder part is reliably prevented, and the ring-shaped sealing material generates an external impact. It also functions as a cushion in the event of a shock, damping the shock and reliably preventing breakage.
【００３４】更に、プラグ部の端面と開口先端部の端面
との間に間隙を形成しているので、雌螺子部と雄螺子部
との螺合を充分に行うことができ、プラグ部の端面と開
口先端部の端面とが先に当接してしまい、シール材の押
圧が不充分となって止水できないことがない。しかも、
継手の端面の仕上がりが粗雑で凹凸が存在するような場
合であっても充分にシール効果を発揮する。また、端面
にバリ等が生じていても、シール材には接触しないの
で、シール材が傷付いたり、傷が原因でシール材が破損
することがない。Further, since a gap is formed between the end surface of the plug portion and the end surface of the opening front end portion, the female screw portion and the male screw portion can be sufficiently screwed, and the plug end surface The end face of the opening and the end face of the opening end come in contact with each other first, so that the sealing member is not sufficiently pressed to prevent water from stopping. Moreover,
Even when the end face of the joint is rough and uneven, the sealing effect is sufficiently exhibited. Further, even if burrs or the like are generated on the end surface, the sealing material does not come into contact with the sealing material, so that the sealing material is not damaged and the sealing material is not damaged due to the scratch.
【図１】本発明に係る仮止水栓をＬ型継手に装着した状
態を示す一部を拡大した断面図である。FIG. 1 is a partially enlarged sectional view showing a state in which a temporary stopcock according to the present invention is attached to an L-shaped joint.
【図２】本発明に係る仮止水栓を示し、（Ａ）は左側面
図、（Ｂ）は正面図、（Ｃ）は右側面図である。FIG. 2 shows a temporary stopcock according to the present invention, wherein (A) is a left side view, (B) is a front view, and (C) is a right side view.
【図３】図２のＡ−Ａ線断面図である。FIG. 3 is a sectional view taken along line AA of FIG. 2;
【図４】Ｌ型継手に仮止水栓を螺合嵌入する前の状態を
示す要部の断面図である。FIG. 4 is a sectional view of a main part showing a state before a temporary stopcock is screwed into an L-shaped joint.
【図５】樹脂管を用いた他の実施の形態を示す断面図で
ある。FIG. 5 is a sectional view showing another embodiment using a resin tube.
１ 上水道管 ２ Ｌ型継手 ３ 雌螺子 ４ 面取部 ５ 仮止水栓 ６ 雄螺子 ７ 嵌合筒部 ８ プラグ部 ９ シール材 １１ 段付パイプ １２ 螺子管 ２１ 直管継手 ７２ 押圧嵌入部 ７３ 環状溝部 DESCRIPTION OF SYMBOLS 1 Water pipe 2 L-shaped joint 3 Female screw 4 Chamfer part 5 Temporary stopcock 6 Male screw 7 Fitting tube part 8 Plug part 9 Sealing material 11 Stepped pipe 12 Screw pipe 21 Straight pipe joint 72 Press fitting part 73 Annular Groove
Claims (2)
部に開口端面側が拡径する面取部を形成し、この開口先
端部に螺合嵌入させて上水道管の通水試験を行う仮止水
栓であって、 開口先端部内に螺合嵌入する嵌合筒部と、該嵌合筒部に
連設して設けた拡径するプラグ部とを備え、 前記嵌合筒部とプラグ部とが連続する嵌合筒部の基端部
分に、前記面取部の外周径よりも小径で且つ内周径より
も大径な押圧嵌入部を形成し、 上記押圧嵌入部の前端部分にリング状のシール材を嵌め
込み、 前記嵌合筒部を上水道管の開口先端部に螺合嵌入させた
ときに、上記シール材が開口先端部の開口端縁に形成し
た面取部に圧接してシール材により止水可能となし、プ
ラグ部の端面と上水道管の開口先端部の端面との間に間
隙が生じるようにしたことを特徴とする上水道管用開口
先端部の仮止水栓。1. A water pipe test is formed by forming a chamfer at the opening end of the water pipe in the middle of the building where the opening end face is enlarged in diameter, and screwing and fitting the opening into the opening. A water stopcock, comprising: a fitting tube portion that is screw-fitted into an opening distal end portion; and a plug portion that is provided so as to be connected to the fitting tube portion and that increases in diameter. A press fitting portion having a diameter smaller than the outer diameter of the chamfered portion and larger than the inner diameter is formed at a base end portion of the fitting cylindrical portion where the pressure fitting portion is continuous, and a ring is formed at a front end portion of the press fitting portion. When the fitting cylindrical portion is screwed into the opening end of the water pipe, the sealing material is pressed against the chamfer formed at the opening edge of the opening end to seal. The material is made water-stoppable, and a gap is created between the end of the plug and the end of the opening of the water pipe. Temporary stop cock for water supply pipe opening tip to.
した金属製の螺子管を装着した樹脂管によって形成し、
上記面取部を螺子管の開口端縁に形成した請求項１に記
載の上水道管用開口先端部の仮止水栓。2. A water pipe having an open end formed by a resin pipe fitted with a metal screw pipe having a female screw formed therein,
2. The temporary stopcock according to claim 1, wherein the chamfered portion is formed at an opening edge of the screw pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7288110A JP2827099B2 (en) | 1995-10-11 | 1995-10-11 | Temporary stopcock at the end of the opening for water pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7288110A JP2827099B2 (en) | 1995-10-11 | 1995-10-11 | Temporary stopcock at the end of the opening for water pipe |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH09105160A JPH09105160A (en) | 1997-04-22 |
| JP2827099B2 true JP2827099B2 (en) | 1998-11-18 |
Family
ID=17725938
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7288110A Expired - Lifetime JP2827099B2 (en) | 1995-10-11 | 1995-10-11 | Temporary stopcock at the end of the opening for water pipe |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2827099B2 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100618638B1 (en) * | 2005-12-29 | 2006-09-06 | 송영길 | Combination case for tap connection pipe |
| KR101138813B1 (en) * | 2009-12-08 | 2012-05-10 | 덕산금속 주식회사 | The faucet connection plumbing. |
-
1995
- 1995-10-11 JP JP7288110A patent/JP2827099B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH09105160A (en) | 1997-04-22 |
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