JP6390640B2 - Piping system - Google Patents

Piping system Download PDF

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JP6390640B2
JP6390640B2 JP2016035510A JP2016035510A JP6390640B2 JP 6390640 B2 JP6390640 B2 JP 6390640B2 JP 2016035510 A JP2016035510 A JP 2016035510A JP 2016035510 A JP2016035510 A JP 2016035510A JP 6390640 B2 JP6390640 B2 JP 6390640B2
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joint
pipe
hole
seat member
wall
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JP2017150623A (en
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元 井村
元 井村
祐作 篠田
祐作 篠田
翔太 中野
翔太 中野
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ONDA MFG.CO.,LTD.
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ONDA MFG.CO.,LTD.
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Description

本発明は、壁に形成された貫通孔に挿通されるパイプと、パイプの両端にそれぞれ接続される継手とを備えた配管システムに関する。 The present invention relates to a piping system comprising a pipe to be inserted into a through hole formed in the wall, and a joint that is connected to both ends of the pipe.

例えば建物のリフォームなどにおいて建物の壁を貫通して配管する場合に、壁に形成された貫通孔に挿通されるパイプと、同パイプの両端にそれぞれ接続される継手とを備えた配管システムを施工することがある。上記継手としては、エルボ状の継手や、Ｔ字状の継手、筒状の本体部の一端に座が一体に形成された継手などがある。   For example, when piping through a building wall for renovation of a building, etc., construct a piping system that includes a pipe that is inserted through a through-hole formed in the wall and a joint that is connected to each end of the pipe. There are things to do. Examples of the joint include an elbow-shaped joint, a T-shaped joint, and a joint in which a seat is integrally formed at one end of a cylindrical main body.

また通常、貫通孔の内径は、パイプ及びパイプが接続される継手の端部が挿通できる程度に可能な限り小さく設定されるため、貫通孔の内部に継手全体を挿通することができない。そこで、従来、施工の際には、まず、パイプの一端に一方の継手を接続したものを貫通孔の一方の開口からパイプの他端を前にして貫通孔に挿通する。続いて、パイプの他端に他方の継手が接続されるように、貫通孔の他方の開口からパイプの他端を狙って他方の継手の端部を挿入する。この場合、狭い貫通孔の内部での接続作業を補助する目的から、上記他方の継手として、例えば特許文献１に記載のワンタッチ式の継手が用いられることがある。特許文献１に記載の継手の端部の接続口には、抜け止め用のリングが設けられており、同接続口にパイプが挿入されると、同リングによりパイプの外周面が係止されることでパイプに継手が接続される。   In general, the inner diameter of the through hole is set as small as possible so that the pipe and the end of the joint to which the pipe is connected can be inserted, and thus the entire joint cannot be inserted into the through hole. Therefore, conventionally, at the time of construction, first, a pipe having one joint connected to one end thereof is inserted into the through hole from one opening of the through hole to the other end of the pipe. Subsequently, the other joint end is inserted from the other opening of the through hole so as to connect the other joint to the other end of the pipe. In this case, for the purpose of assisting the connection work inside the narrow through hole, for example, a one-touch type joint described in Patent Document 1 may be used as the other joint. The connection port at the end of the joint described in Patent Document 1 is provided with a retaining ring, and when a pipe is inserted into the connection port, the outer peripheral surface of the pipe is locked by the ring. Thus, the joint is connected to the pipe.

特開２００９−１８０２５８号公報JP 2009-180258 A

ところで、従来の配管システム及び配管システムの施工方法では、貫通孔の内部においてパイプと継手との接続作業が行われる。そのため、特許文献１に記載のワンタッチ式の継手を用いる場合であっても、作業者は、パイプと継手とが適切に接続されているか否かを目視にて確認することができず、改善の余地を残すものとなっている。   By the way, in the conventional piping system and the construction method of the piping system, the connection work between the pipe and the joint is performed inside the through hole. Therefore, even when the one-touch type joint described in Patent Document 1 is used, the operator cannot visually confirm whether or not the pipe and the joint are properly connected. It is something that leaves room.

本発明の目的は、パイプと継手とが適切に接続されているか否かの確認を行うことのできる配管システムを提供することにある。 An object of the present invention is to provide a pipe system which can be confirmed whether or not the pipe and fitting are properly connected.

上記目的を達成するための配管システムは、壁に形成された貫通孔に挿通されるパイプと、前記パイプの第１端が接続され、前記貫通孔の第１開口から外部に突出する第１継手と、前記パイプの第２端が接続される継手本体と、前記継手本体における前記貫通孔の第２開口から外部に突出する部位に対して着脱可能に設けられる座部材とを有する第２継手と、を備え、前記第１継手は、前記貫通孔の内部に全体を挿通不可能な形状を有し、前記第２継手の前記継手本体における前記第２開口から外部に突出する部位は前記貫通孔の内部に挿通可能な形状を有するとともに、前記座部材は前記貫通孔の内部に全体を挿通不可能な形状を有する。   A piping system for achieving the above object includes a pipe inserted through a through-hole formed in a wall, and a first joint that is connected to a first end of the pipe and projects outward from a first opening of the through-hole. And a second joint having a joint body to which the second end of the pipe is connected, and a seat member detachably provided to a portion projecting outside from the second opening of the through hole in the joint body. The first joint has a shape that cannot be entirely inserted into the through hole, and the portion of the second joint that protrudes outside from the second opening in the joint body is the through hole. The seat member has a shape that cannot be inserted entirely into the through hole.

また、上記目的を達成するための配管システムの施工方法は、上記配管システムを施工する方法であって、前記パイプの前記第１端に前記第１継手を接続するとともに前記パイプの前記第２端に前記第２継手の前記継手本体を接続して部分接続体を形成し、前記部分接続体を、前記貫通孔の前記第１開口から前記第２継手の前記継手本体を前にして前記貫通孔に挿通し、前記継手本体における前記貫通孔の前記第２開口から外部に突出する部位に対して前記座部材を装着する。   Moreover, the construction method of the piping system for achieving the above object is a method of constructing the piping system, wherein the first joint is connected to the first end of the pipe and the second end of the pipe. The joint body of the second joint is connected to form a partial connection body, and the partial connection body extends from the first opening of the through hole to the joint body of the second joint in front of the through hole. The seat member is attached to a portion of the joint body that protrudes to the outside from the second opening of the through hole.

上記構成または上記方法によれば、第２継手が継手本体と座部材とに分離可能とされており、しかも継手本体における第２開口から外部に突出する部位が貫通孔の内部に挿通可能な形状を有している。このため、パイプの第１端に第１継手を接続するとともにパイプの第２端に第２継手の継手本体を接続して形成された部分接続体を、貫通孔の第１開口から第２継手の継手本体を前にして貫通孔に挿通し、継手本体における貫通孔の第２開口から突出する部位に対して座部材を装着することができる。したがって、パイプの両端と両継手との接続作業を貫通孔の外部で行うことができる。   According to the above configuration or the above method, the second joint is separable into the joint main body and the seat member, and the portion projecting to the outside from the second opening in the joint main body can be inserted into the through hole. have. For this reason, the partial connection body formed by connecting the first joint to the first end of the pipe and connecting the joint body of the second joint to the second end of the pipe is connected to the second joint from the first opening of the through hole. It is possible to insert the seat member into a portion projecting from the second opening of the through hole in the joint body through the joint body. Therefore, the connection work between both ends of the pipe and both joints can be performed outside the through hole.

なお、第１継手としては、例えば座部が一体に形成された継手のように貫通孔の内径よりも大きい外径の部分を有するものや、Ｔ字状の継手やエルボ状の継手のように貫通孔よりも径方向に突出した部分を有するものなどが挙げられる。   As the first joint, for example, a joint having an outer diameter larger than the inner diameter of the through hole, such as a joint in which a seat portion is integrally formed, a T-shaped joint, or an elbow-shaped joint. What has the part which protruded in the radial direction rather than the through-hole is mentioned.

本発明によれば、パイプと継手とが適切に接続されているか否かの確認を行うことができる。   According to the present invention, it is possible to confirm whether or not the pipe and the joint are properly connected.

配管システムの一実施形態について、施工された状態の配管システム全体の断面図。Sectional drawing of the whole piping system of the constructed state about one Embodiment of a piping system. 同実施形態における第２継手の継手本体、パッキン、座部材、ロックナット、及びねじの分解斜視図。The disassembled perspective view of the joint main body, packing, seat member, lock nut, and screw of the second joint in the same embodiment. （ａ）〜（ｃ）は、同実施形態における配管システムの施工手順の前半を示す断面図。(A)-(c) is sectional drawing which shows the first half of the construction procedure of the piping system in the embodiment. （ａ）〜（ｃ）は、同実施形態における配管システムの施工手順の後半を示す断面図。(A)-(c) is sectional drawing which shows the second half of the construction procedure of the piping system in the embodiment. （ａ）は変形例における第２継手を中心とした正面図、（ｂ）は変形例における第２継手を中心とした断面図。(A) is a front view centering on the 2nd joint in a modification, (b) is sectional drawing centering on the 2nd joint in a modification.

以下、図１〜図４を参照して、一実施形態について説明する。
図１に示すように、建物の壁は、互いに間隔をおいて対向配置された第１壁７１と第２壁７２とを有している。第１壁７１及び第２壁７２には、断面円形状の第１貫通孔８１及び第２貫通孔８２が同一軸線上にそれぞれ形成されている。 Hereinafter, an embodiment will be described with reference to FIGS.
As shown in FIG. 1, the wall of a building has a first wall 71 and a second wall 72 that are opposed to each other with a space therebetween. In the first wall 71 and the second wall 72, a first through hole 81 and a second through hole 82 having a circular cross section are formed on the same axis.

本実施形態の配管システムは、貫通孔８１，８２に挿通されるパイプ３０、パイプ３０の第１端３１が接続され、第１貫通孔８１の第１開口９１から第１壁７１の外部に突出するエルボ状の第１継手１０、及びパイプ３０の第２端３２が接続され、第２貫通孔８２の第２開口９２から第２壁７２の外部に突出する座付きの第２継手２０を備えている。   In the piping system of the present embodiment, the pipe 30 inserted through the through holes 81 and 82 and the first end 31 of the pipe 30 are connected, and project from the first opening 91 of the first through hole 81 to the outside of the first wall 71. The elbow-shaped first joint 10 and the second end 32 of the pipe 30 are connected to each other, and the second joint 20 with a seat protruding from the second opening 92 of the second through hole 82 to the outside of the second wall 72 is provided. Yes.

次に、配管システムの各構成について詳細に説明する。
＜パイプ３０＞
図１及び図２に示すように、パイプ３０は、円筒状をなしており、例えば架橋ポリエチレンやポリブテンなどの合成樹脂材料により形成されている。パイプ３０は、第１壁７１と第２壁７２との間隔に対応した所定の長さに切断されている。 Next, each configuration of the piping system will be described in detail.
<Pipe 30>
As shown in FIGS. 1 and 2, the pipe 30 has a cylindrical shape and is formed of a synthetic resin material such as cross-linked polyethylene or polybutene. The pipe 30 is cut to a predetermined length corresponding to the distance between the first wall 71 and the second wall 72.

＜第１継手１０＞
図１に示すように、第１継手１０は、直角に屈曲された円筒状の本体１１を有している。本体１１の第１端部１２には、内筒部１２１及び外筒部１２２が形成されている。また、本体１１の第２端部１３には、内筒部１３１及び外筒部１３２が形成されている。 <First joint 10>
As shown in FIG. 1, the first joint 10 has a cylindrical main body 11 bent at a right angle. An inner cylinder 121 and an outer cylinder 122 are formed at the first end 12 of the main body 11. Further, an inner cylinder part 131 and an outer cylinder part 132 are formed at the second end 13 of the main body 11.

本実施形態では、第１端部１２と第２端部１３とが同一の形状を有していることから、以降において、第１端部１２の説明をすることにより第２端部１３についての重複する説明を省略する。   In the present embodiment, since the first end portion 12 and the second end portion 13 have the same shape, the first end portion 12 will be described below to explain the second end portion 13. A duplicate description is omitted.

第１端部１２を構成する内筒部１２１及び外筒部１２２は、二重管構造をなすとともに軸線方向の基端側（同図の右側であり、以下、単に基端側と称する。）において互いに連結されている。   The inner cylinder part 121 and the outer cylinder part 122 which comprise the 1st end part 12 make a double-pipe structure, and are the base end sides of the axial direction (it is the right side of the figure, and are only hereafter called a base end side). Are connected to each other.

外筒部１２２は、内筒部１２１よりも軸線方向の先端側（同図の左側であり、以下、単に先端側と称する。）に突出している。
内筒部１２１の内周面には、基端側に位置する縮径部１２３と、縮径部１２３の先端側に隣接し、縮径部１２３よりも大きい内径の拡径部１２４とを有しており、縮径部１２３と拡径部１２４との間には段差部１２５が形成されている。 The outer cylinder part 122 protrudes from the inner cylinder part 121 to the front end side in the axial direction (the left side in the figure, hereinafter simply referred to as the front end side).
The inner peripheral surface of the inner cylinder portion 121 has a reduced diameter portion 123 located on the proximal end side and an enlarged diameter portion 124 adjacent to the distal end side of the reduced diameter portion 123 and having an inner diameter larger than the reduced diameter portion 123. A step 125 is formed between the reduced diameter portion 123 and the enlarged diameter portion 124.

拡径部１２４には、Ｏリング１５と、Ｏリング１５の先端側への移動を規制する第１規制リング１６とが内嵌されている。Ｏリング１５の基端側への移動は段差部１２５により規制されている。   An O-ring 15 and a first restriction ring 16 that restricts the movement of the O-ring 15 toward the distal end side are fitted into the enlarged diameter portion 124. The movement of the O-ring 15 toward the base end side is restricted by the step portion 125.

内筒部１２１には、円筒状のキャップ１４が外嵌されている。キャップ１４の内周面には、先端側ほど縮径されたテーパ部１４１が形成されている。
内筒部１２１の先端面と、同先端面に対向するキャップ１４の内周面との間には、ロックリング１７、ロックリング１７の基端側及び径方向への移動を規制する第２規制リング１８、及び径方向に伸縮可能な割リング１９が設けられている。 A cylindrical cap 14 is fitted on the inner cylinder 121. On the inner peripheral surface of the cap 14, a tapered portion 141 having a diameter reduced toward the tip side is formed.
Between the front end surface of the inner cylinder part 121 and the inner peripheral surface of the cap 14 facing the front end surface, a second restriction that restricts movement of the lock ring 17, the proximal end side of the lock ring 17 and the radial direction A ring 18 and a split ring 19 that can expand and contract in the radial direction are provided.

キャップ１４の基端部の外周面には、円筒状のカバー１４５が外嵌されている。
外筒部１２２の外周面と内筒部１２１の縮径部１２３の内周面との間には、基端側から順に、円筒状の案内部材１０１及びパイプ３０の第１端３１が挿入されている。 A cylindrical cover 145 is fitted on the outer peripheral surface of the base end portion of the cap 14.
Between the outer peripheral surface of the outer cylindrical portion 122 and the inner peripheral surface of the reduced diameter portion 123 of the inner cylindrical portion 121, the cylindrical guide member 101 and the first end 31 of the pipe 30 are sequentially inserted from the proximal end side. ing.

ここで、第１継手１０に対してパイプ３０が先端側に移動しようとすると、パイプ３０の外周面に食い込んだロックリング１７がパイプ３０と共に先端側に移動しようとする。このとき、ロックリング１７により割リング１９が押されて先端側に移動するが、キャップ１４の内周面のテーパ部１４１により割リング１９が縮径されてパイプ３０に食い込む。このことにより、第１継手１０からのパイプ３０の抜け止めがなされる。   Here, when the pipe 30 is about to move to the front end side with respect to the first joint 10, the lock ring 17 digging into the outer peripheral surface of the pipe 30 tends to move together with the pipe 30 to the front end side. At this time, the split ring 19 is pushed by the lock ring 17 and moves to the tip side, but the split ring 19 is reduced in diameter by the tapered portion 141 on the inner peripheral surface of the cap 14 and bites into the pipe 30. This prevents the pipe 30 from coming off from the first joint 10.

また、案内部材１０１は、パイプ３０が第１継手１０に接続されていない状態では、軸線方向におけるロックリング１７と割リング１９との間に配置されている。このため、第１継手１０の接続口にパイプ３０を挿入する際には、パイプ３０の第１端３１により案内部材１０１が押されるとともに同案内部材１０１によってロックリング１７及び割リング１９が外周側に押し広げられることでパイプ３０の挿入が案内される。   The guide member 101 is disposed between the lock ring 17 and the split ring 19 in the axial direction in a state where the pipe 30 is not connected to the first joint 10. For this reason, when the pipe 30 is inserted into the connection port of the first joint 10, the guide member 101 is pushed by the first end 31 of the pipe 30 and the lock ring 17 and the split ring 19 are moved to the outer peripheral side by the guide member 101. The insertion of the pipe 30 is guided by being spread out.

また、Ｏリング１５により、パイプ３０の外周面と内筒部１２１の拡径部１２４との間がシールされている。
このようにしてパイプ３０の第１端３１が第１端部１２に接続されている。 Further, the space between the outer peripheral surface of the pipe 30 and the enlarged diameter portion 124 of the inner cylinder portion 121 is sealed by the O-ring 15.
In this way, the first end 31 of the pipe 30 is connected to the first end 12.

一方、本体１１の第２端部１３は、第１壁７１の外側において下方を指向している。第２端部１３には、上記パイプ３０と同様なパイプ１３０の上端が接続されている。なお、パイプ１３０の上端よりもパイプ１３０の挿入方向前方（同図の上方）には、第１端部１２と同様な環状の案内部材１０１が挿入されている。   On the other hand, the second end 13 of the main body 11 is directed downward on the outside of the first wall 71. The upper end of a pipe 130 similar to the pipe 30 is connected to the second end portion 13. An annular guide member 101 similar to the first end portion 12 is inserted in front of the upper end of the pipe 130 in the insertion direction of the pipe 130 (upward in the figure).

第１継手１０の上下方向の長さは、貫通孔８１，８２の内径よりも大きい。すなわち、第１継手１０は、貫通孔８１，８２の内部に全体を挿通不可能な形状を有している。
＜第２継手２０＞
図１に示すように、第２継手２０は、直線状の軸線を有する円筒状の継手本体２１と、継手本体２１の先端部（同図の左端部）の外周面に形成された雄ねじ２２１に螺合された円盤状の座部材２８とを有している。 The length of the first joint 10 in the vertical direction is larger than the inner diameters of the through holes 81 and 82. That is, the first joint 10 has a shape that cannot be entirely inserted into the through holes 81 and 82.
<Second joint 20>
As shown in FIG. 1, the second joint 20 includes a cylindrical joint body 21 having a linear axis, and a male screw 221 formed on the outer peripheral surface of the distal end portion (left end portion in the figure) of the joint body 21. And a disk-shaped seat member 28 screwed together.

継手本体２１は、円筒状の筒体２２と、筒体２２の基端部（同図の右端部）に螺入された保持リング２３とを有している。
筒体２２の先端部の内周面には、図示しない水栓などの雄ねじを螺入して取り付けるための雌ねじ２２２が形成されている。また、筒体２２の内周面には、雌ねじ２２２の基端側に隣接して突条２２３が全周にわたって形成されている。 The joint body 21 includes a cylindrical tube body 22 and a holding ring 23 screwed into a base end portion (right end portion in the figure) of the tube body 22.
A female screw 222 for screwing and attaching a male screw such as a water tap (not shown) is formed on the inner peripheral surface of the distal end portion of the cylindrical body 22. Further, on the inner peripheral surface of the cylindrical body 22, a protrusion 223 is formed over the entire circumference adjacent to the proximal end side of the female screw 222.

筒体２２の内周面に形成された一対の凹溝には、一対のＯリング２４がそれぞれ内嵌されている。
保持リング２３の先端面と、同先端面に対向する筒体２２の内周面との間には、一対のロックリング２５、及び一対のロックリング２５の間に設けられてロックリング２５の間の間隔を保持するスペーサ２６が設けられている。 A pair of O-rings 24 are respectively fitted in the pair of concave grooves formed on the inner peripheral surface of the cylindrical body 22.
Between the front end surface of the holding ring 23 and the inner peripheral surface of the cylindrical body 22 facing the front end surface, a pair of lock rings 25 and a pair of lock rings 25 are provided between the lock rings 25. A spacer 26 is provided to maintain the interval.

継手本体２１の内部には、先端に鍔部２７１を有する円筒状のインコア２７が継手本体２１の基端側の開口から内挿されている。筒体２２の内周面の突条２２３により、インコア２７の先端側への移動が規制されている。   A cylindrical in-core 27 having a flange 271 at the tip is inserted into the joint main body 21 from an opening on the proximal end side of the joint main body 21. Movement of the in-core 27 toward the tip side is restricted by the protrusion 223 on the inner peripheral surface of the cylindrical body 22.

インコア２７の外周面と、筒体２２の内周面との間に、パイプ３０の第２端３２が挿入されている。ここで、一対のロックリング２５によりパイプ３０の外周面が係止されている。また、Ｏリング２４により、パイプ３０の外周面と筒体２２の内周面との間がシールされている。このようにしてパイプ３０の第２端３２が継手本体２１に接続されている。このとき、雄ねじ２２１は、第２貫通孔８２の第２開口９２から外部に突出している。   A second end 32 of the pipe 30 is inserted between the outer peripheral surface of the in-core 27 and the inner peripheral surface of the cylindrical body 22. Here, the outer peripheral surface of the pipe 30 is locked by the pair of lock rings 25. Further, the space between the outer peripheral surface of the pipe 30 and the inner peripheral surface of the cylindrical body 22 is sealed by the O-ring 24. In this way, the second end 32 of the pipe 30 is connected to the joint body 21. At this time, the male screw 221 protrudes from the second opening 92 of the second through hole 82 to the outside.

図１及び図２に示すように、座部材２８の中心部には、雄ねじ２２１に螺合される雌ねじ孔２８１が形成されている。また、座部材２８には、複数（本実施形態では３つ）のねじ孔２９が周方向に等間隔にて形成されている。   As shown in FIGS. 1 and 2, a female screw hole 281 that is screwed into the male screw 221 is formed at the center of the seat member 28. The seat member 28 is formed with a plurality (three in this embodiment) of screw holes 29 at equal intervals in the circumferential direction.

図１に示すように、第２継手２０の継手本体２１の最大外径は貫通孔８１，８２の内径よりも小さい。すなわち、継手本体２１は貫通孔８１，８２の内部に全体を挿通可能な形状を有している。   As shown in FIG. 1, the maximum outer diameter of the joint body 21 of the second joint 20 is smaller than the inner diameters of the through holes 81 and 82. That is, the joint main body 21 has a shape that allows the whole to be inserted into the through holes 81 and 82.

また、座部材２８の外径は貫通孔８１，８２の内径よりも大きい。すなわち、座部材２８は、貫通孔８１，８２の内部に全体を挿通不可能な形状を有している。
＜パッキン４０及びロックナット５０＞
図１に示すように、第２壁７２の表面と座部材２８との間には、合成ゴムまたは合成樹脂により形成されたパッキン４０が介設されている。 Further, the outer diameter of the seat member 28 is larger than the inner diameters of the through holes 81 and 82. That is, the seat member 28 has a shape that cannot be entirely inserted into the through holes 81 and 82.
<Packing 40 and lock nut 50>
As shown in FIG. 1, a packing 40 formed of synthetic rubber or synthetic resin is interposed between the surface of the second wall 72 and the seat member 28.

図１及び図２に示すように、パッキン４０のシート部４１は円盤状をなしている。シート部４１の外径は座部材２８の外径よりも僅かに小さい。シート部４１の中心部には、雄ねじ２２１の外径よりも大きい内径の中心孔４２が形成されている。また、シート部４１には、座部材２８の複数（本実施形態では３つ）のねじ孔２９に対応して複数のねじ孔４３が周方向に等間隔にて形成されている。   As shown in FIG.1 and FIG.2, the sheet | seat part 41 of the packing 40 has comprised the disk shape. The outer diameter of the seat portion 41 is slightly smaller than the outer diameter of the seat member 28. A central hole 42 having an inner diameter larger than the outer diameter of the male screw 221 is formed at the center of the seat portion 41. In addition, a plurality of screw holes 43 are formed in the seat portion 41 at equal intervals in the circumferential direction corresponding to a plurality (three in this embodiment) of screw holes 29 of the seat member 28.

シート部４１の外周縁には、外周側に突出する除去予定部４４が脆弱部４５を介して一体に形成されている。除去予定部４４は、ねじ孔４３に対して周方向に偏倚した位置（本実施形態では、周方向に隣り合う２つのねじ孔４３の中間位置）に形成されている。脆弱部４５は他の部位に比べて横断面積が小さくされている。   On the outer peripheral edge of the sheet portion 41, a removal planned portion 44 that protrudes to the outer peripheral side is formed integrally with a fragile portion 45. The to-be-removed portion 44 is formed at a position biased in the circumferential direction with respect to the screw hole 43 (in this embodiment, an intermediate position between two screw holes 43 adjacent in the circumferential direction). The fragile portion 45 has a smaller cross-sectional area than other portions.

座部材２８及びパッキン４０の複数のねじ孔２９，４３には、複数のねじ６１がそれぞれ挿通されている。そして、複数のねじ６１が第２壁７２にねじ込まれることにより、座部材２８、すなわち第２継手２０が第２壁７２に固定されている。   A plurality of screws 61 are inserted through the screw holes 29 and 43 of the seat member 28 and the packing 40, respectively. The seat member 28, that is, the second joint 20 is fixed to the second wall 72 by screwing the plurality of screws 61 into the second wall 72.

雄ねじ２２１には、座部材２８の外側からロックナット５０が螺合されている。ロックナット５０により継手本体２１に対して座部材２８が軸線方向に相対移動することが規制されている。   A lock nut 50 is screwed onto the male screw 221 from the outside of the seat member 28. The lock member 50 restricts the seat member 28 from moving relative to the joint body 21 in the axial direction.

次に、図３及び図４を参照して、本実施形態の配管システムの施工手順について説明する。
図３（ａ）に示すように、作業者は、まず、パイプ３０の第１端３１に第１継手１０を接続するとともにパイプ３０の第２端３２に第２継手２０の継手本体２１を接続することで部分接続体Ｓを形成する。このとき、パイプ３０と第１継手１０との接続に先立ち、パイプ３０の端部の外周面に対して、第１継手１０に挿入される挿入深さに対応する位置にマーキングを施す。そして、第１継手１０の接続口にパイプ３０を挿入した後に、当該マーキングが第１継手１０の接続口の位置まで挿入されていることを目視で確認することで、パイプ３０と第１継手１０とが適切に接続されていることを確認する。また、パイプ３０と第２継手２０の継手本体２１との接続確認についても同様である。 Next, with reference to FIG.3 and FIG.4, the construction procedure of the piping system of this embodiment is demonstrated.
As shown in FIG. 3A, the worker first connects the first joint 10 to the first end 31 of the pipe 30 and connects the joint body 21 of the second joint 20 to the second end 32 of the pipe 30. Thus, the partial connection body S is formed. At this time, prior to the connection between the pipe 30 and the first joint 10, marking is performed on the outer peripheral surface of the end portion of the pipe 30 at a position corresponding to the insertion depth inserted into the first joint 10. Then, after inserting the pipe 30 into the connection port of the first joint 10, the pipe 30 and the first joint 10 are visually confirmed that the marking is inserted to the position of the connection port of the first joint 10. Make sure that and are connected properly. The same applies to the connection confirmation between the pipe 30 and the joint body 21 of the second joint 20.

また、継手本体２１の雌ねじ２２２に、筒状の案内プラグ５５を螺入することにより、部分接続体Ｓを先端側に向けて延長する。
次に、図３（ｂ）及び図３（ｃ）に示すように、部分接続体Ｓを、第１開口９１から第２継手２０の継手本体２１を前にして（厳密には案内プラグ５５を前にして）貫通孔８１，８２に挿通する。これにより、案内プラグ５５及び継手本体２１の雄ねじ２２１が第２開口９２から第２壁７２の外部に突出する。 Moreover, the partial connection body S is extended toward the front end side by screwing the cylindrical guide plug 55 into the female thread 222 of the joint body 21.
Next, as shown in FIGS. 3 (b) and 3 (c), the partial connection body S is placed in front of the joint body 21 of the second joint 20 from the first opening 91 (strictly, the guide plug 55 is placed). Insert the through-holes 81 and 82 before). As a result, the guide plug 55 and the external thread 221 of the joint body 21 protrude from the second opening 92 to the outside of the second wall 72.

次に、図４（ａ）に示すように、案内プラグ５５に案内させながら継手本体２１の雄ねじ２２１に対してパッキン４０を外挿するとともに座部材２８を螺合する。このとき、パッキン４０のシート部４１は第２壁７２と座部材２８とにより挟まれる一方、除去予定部４４は第２壁７２と座部材２８との間から外方へ延出した状態となる。   Next, as shown in FIG. 4A, the packing 40 is externally inserted into the male screw 221 of the joint body 21 while being guided by the guide plug 55, and the seat member 28 is screwed. At this time, the seat portion 41 of the packing 40 is sandwiched between the second wall 72 and the seat member 28, while the removal planned portion 44 extends outward from between the second wall 72 and the seat member 28. .

そこで、作業者は、除去予定部４４を指で摘みながらパッキン４０を周方向や径方向に変位させることにより、複数のねじ孔４３が座部材２８の複数のねじ孔２９とそれぞれ一致するまでパッキン４０の位置調整を行う。   Therefore, the operator displaces the packing 40 in the circumferential direction or the radial direction while picking the portion to be removed 44 with a finger until the plurality of screw holes 43 coincide with the plurality of screw holes 29 of the seat member 28. 40 position adjustment is performed.

次に、図４（ｂ）に示すように、複数のねじ６１を、座部材２８及びパッキン４０の複数のねじ孔２９，４３にそれぞれ挿通するとともに第２壁７２にねじ込むことにより、座部材２８を第２壁７２に固定する。次に、図示は省略するが、案内プラグ５５に案内させながら継手本体２１の雄ねじ２２１に対してロックナット５０を螺合する。   Next, as shown in FIG. 4B, the plurality of screws 61 are inserted into the seat member 28 and the plurality of screw holes 29, 43 of the packing 40 and screwed into the second wall 72, respectively. Is fixed to the second wall 72. Next, although not shown, the lock nut 50 is screwed into the male screw 221 of the joint body 21 while being guided by the guide plug 55.

次に、図４（ｃ）に示すように、継手本体２１から案内プラグ５５を取り外す。また、パッキン４０の除去予定部４４を指で摘んで強く引っ張ることにより脆弱部４５を破断させてシート部４１から除去する。   Next, as shown in FIG. 4C, the guide plug 55 is removed from the joint body 21. In addition, the weakened portion 45 is broken and removed from the sheet portion 41 by picking the planned removal portion 44 of the packing 40 with a finger and pulling it strongly.

以上説明した本実施形態に係る配管システム及び配管システムの施工方法によれば、以下に示す作用効果が得られるようになる。
（１）配管システムは、壁７１，７２に形成された貫通孔８１，８２に挿通されるパイプ３０と、パイプ３０の第１端３１が接続され、第１貫通孔８１の第１開口９１から外部に突出する第１継手１０を備えている。また、配管システムは、パイプ３０の第２端３２が接続される継手本体２１と、継手本体２１における第２貫通孔８２の第２開口９２から外部に突出する部位に対して着脱可能に設けられる座部材２８とを有する第２継手２０を備えている。第１継手１０は、貫通孔８１，８２の内部に全体を挿通不可能な形状を有している。第２継手２０の継手本体２１は貫通孔８１，８２の内部に全体を挿通可能な形状を有するとともに、座部材２８は貫通孔８１，８２の内部に全体を挿通不可能な形状を有している。 According to the piping system and the piping system construction method according to the present embodiment described above, the following effects can be obtained.
(1) In the piping system, the pipe 30 inserted through the through holes 81 and 82 formed in the walls 71 and 72 and the first end 31 of the pipe 30 are connected, and the first opening 91 of the first through hole 81 is connected. A first joint 10 protruding outward is provided. In addition, the piping system is detachably provided to the joint body 21 to which the second end 32 of the pipe 30 is connected and to a portion of the joint body 21 that protrudes outside from the second opening 92 of the second through hole 82. A second joint 20 having a seat member 28 is provided. The first joint 10 has a shape that cannot be entirely inserted into the through holes 81 and 82. The joint body 21 of the second joint 20 has a shape that can be entirely inserted into the through holes 81 and 82, and the seat member 28 has a shape that cannot be entirely inserted into the through holes 81 and 82. Yes.

こうした構成によれば、第２継手２０が継手本体２１と座部材２８とに分離可能とされており、しかも継手本体２１が貫通孔８１，８２の内部に全体を挿通可能な形状を有している。このため、部分接続体Ｓを、第１貫通孔８１の第１開口９１から第２継手２０の継手本体２１を前にして貫通孔８１，８２に挿通し、継手本体２１における第２貫通孔８２の第２開口９２から突出する部位に対して座部材２８を装着することができる。したがって、パイプ３０の両端３１，３２と両継手１０，２０との接続作業を貫通孔８１，８２の外部で行うことができる。よって、パイプ３０の両端３１，３２と両継手１０，２０とが適切に接続されているか否かの確認を行うことができる。   According to such a configuration, the second joint 20 can be separated into the joint main body 21 and the seat member 28, and the joint main body 21 has a shape that can be entirely inserted into the through holes 81 and 82. Yes. For this reason, the partial connection body S is inserted into the through holes 81 and 82 from the first opening 91 of the first through hole 81 in front of the joint body 21 of the second joint 20, and the second through hole 82 in the joint body 21 is inserted. The seat member 28 can be attached to a portion protruding from the second opening 92. Therefore, the connection work between both ends 31 and 32 of the pipe 30 and the joints 10 and 20 can be performed outside the through holes 81 and 82. Therefore, it is possible to confirm whether or not the both ends 31 and 32 of the pipe 30 and the joints 10 and 20 are properly connected.

（２）パッキン４０のシート部４１の外周縁には除去予定部４４が連結されている。このため、作業者は、除去予定部４４を指で摘みながらパッキン４０を周方向や径方向に変位させてパッキン４０の位置調整を容易に行うことができる。また、第２継手２０を第２壁７２に固定した後に、除去予定部４４がシート部４１から除去されるため、除去予定部４４によって施工箇所の美観が損なわれることを抑制できる。   (2) The removal scheduled portion 44 is connected to the outer peripheral edge of the sheet portion 41 of the packing 40. For this reason, the operator can easily adjust the position of the packing 40 by displacing the packing 40 in the circumferential direction or the radial direction while picking the portion to be removed 44 with a finger. Further, after the second joint 20 is fixed to the second wall 72, the removal planned portion 44 is removed from the sheet portion 41, so that it is possible to suppress the appearance of the construction site from being damaged by the planned removal portion 44.

（３）除去予定部４４は脆弱部４５を介してシート部４１に連結されている。このため、除去予定部４４を指で摘んで引っ張ると、脆弱部４５が優先的に破断される。したがって、シート部４１から除去予定部４４を確実に除去することができる。   (3) The scheduled removal portion 44 is connected to the sheet portion 41 via the fragile portion 45. For this reason, when the removal planned portion 44 is picked and pulled by a finger, the fragile portion 45 is preferentially broken. Therefore, it is possible to reliably remove the planned removal portion 44 from the sheet portion 41.

（４）配管システムの施工方法は、パイプ３０の第１端３１に第１継手１０を接続するとともにパイプ３０の第２端３２に第２継手２０の継手本体２１を接続して部分接続体Ｓを形成する。また、部分接続体Ｓを、貫通孔８１，８２の第１開口９１から第２継手２０の継手本体２１を前にして貫通孔８１，８２に挿通し、継手本体２１における貫通孔８１，８２の第２開口９２から外部に突出する部位に対して座部材２８を装着する。   (4) The construction method of the piping system is such that the first joint 10 is connected to the first end 31 of the pipe 30 and the joint body 21 of the second joint 20 is connected to the second end 32 of the pipe 30. Form. Further, the partial connection body S is inserted into the through holes 81 and 82 from the first openings 91 of the through holes 81 and 82 in front of the joint body 21 of the second joint 20, and the through holes 81 and 82 in the joint body 21 are inserted. The seat member 28 is attached to a portion protruding from the second opening 92 to the outside.

こうした方法によれば、上記効果（１）と同様な効果を奏することができる。
また、上記方法によれば、当該部分接続体Ｓを壁に挿通する前に、部分接続体Ｓにおける漏れの有無を検査することができることから、配管システムの漏れに対する信頼性を向上させることができる。 According to such a method, the same effect as the effect (1) can be obtained.
Moreover, according to the said method, since the presence or absence of the leak in the partial connection body S can be test | inspected before inserting the said partial connection body S through a wall, the reliability with respect to the leakage of a piping system can be improved. .

（５）部分接続体Ｓを貫通孔８１，８２に挿通するに先立ち、継手本体２１の雌ねじ２２２に筒状の案内プラグ５５が螺入される。これにより、部分接続体Ｓが先端側に向けて延長されるため、部分接続体Ｓの先端を第２貫通孔８２に臨ませやすくなり、部分接続体Ｓを第２貫通孔８２に容易に挿通することができる。   (5) Prior to inserting the partial connection body S into the through holes 81 and 82, the cylindrical guide plug 55 is screwed into the female thread 222 of the joint body 21. Thereby, since the partial connection body S is extended toward the front end side, the front end of the partial connection body S can easily face the second through hole 82, and the partial connection body S can be easily inserted into the second through hole 82. can do.

また、継手本体２１の雄ねじ２２１にパッキン４０を外挿する際や、座部材２８及びロックナット５０を螺合する際に、パッキン４０、座部材２８、及びロックナット５０が案内プラグ５５によりそれぞれ案内される。このため、パッキン４０、座部材２８、及びロックナット５０の施工を容易に行うことができる。   Further, when the packing 40 is extrapolated to the male screw 221 of the joint body 21 or when the seat member 28 and the lock nut 50 are screwed together, the packing 40, the seat member 28 and the lock nut 50 are guided by the guide plug 55, respectively. Is done. For this reason, construction of packing 40, seat member 28, and lock nut 50 can be performed easily.

＜変形例＞
なお、上記実施形態は、例えば以下のように変更することもできる。
・上記実施形態では、第２継手２０の継手本体２１が貫通孔８１，８２の内部に全体を挿通可能な形状を有する構成について例示した。しかしながら、本発明に係る継手本体の形状はこれに限定されるものではなく、少なくとも継手本体における第２開口９２から外部に突出する部位が貫通孔８１，８２の内部に挿通可能な形状を有していればよい。 <Modification>
In addition, the said embodiment can also be changed as follows, for example.
-In above-mentioned embodiment, it illustrated about the structure which the joint main body 21 of the 2nd joint 20 has a shape which can be penetrated in the inside of the through-holes 81 and 82. FIG. However, the shape of the joint body according to the present invention is not limited to this, and at least a portion of the joint body that protrudes outside from the second opening 92 has a shape that can be inserted into the through holes 81 and 82. It only has to be.

・上記実施形態では、第１壁７１と第２壁７２とにより構成される建物の壁に対して本発明を適用したが、１つ、または３つ以上の壁に対しても本発明を同様にして適用することができる。   In the above embodiment, the present invention is applied to the building wall constituted by the first wall 71 and the second wall 72. However, the present invention is similarly applied to one, or three or more walls. Can be applied.

・継手本体２１の雄ねじ２２１がロックナット５０よりも先端側に突出するように雄ねじ２２１を延長してもよい。実際の施工現場では、第１壁７１と第２壁７２との間隔が設計値と異なっている場合がある。また、前述したようにパイプ３０は予め所定の長さに切断される、所謂プレカットされることがある。このような場合であっても、上記のように雄ねじ２２１が延長されていれば、第１壁７１と第２壁７２との実際の間隔に応じて継手本体２１と座部材２８との軸線方向における相対位置を調整することができる。   -You may extend the external thread 221 so that the external thread 221 of the coupling main body 21 may protrude in the front end side rather than the lock nut 50. FIG. In an actual construction site, the distance between the first wall 71 and the second wall 72 may be different from the design value. Further, as described above, the pipe 30 may be so-called precut that is cut into a predetermined length in advance. Even in such a case, if the male screw 221 is extended as described above, the axial direction of the joint body 21 and the seat member 28 according to the actual distance between the first wall 71 and the second wall 72. The relative position at can be adjusted.

・案内プラグ５５を省略することもできる。
・第１継手１０はエルボ状の継手に限定されない。第１継手は、貫通孔の内部に全体を挿通不可能な形状を有するものであればよく、他に例えば、Ｔ字状をなす継手や、座が一体に形成された継手、すなわち座が分離できない継手などを採用することもできる。 The guide plug 55 can be omitted.
-The 1st coupling 10 is not limited to an elbow-shaped coupling. The first joint only needs to have a shape that cannot be entirely inserted into the through hole. For example, a T-shaped joint or a joint in which the seat is integrally formed, that is, the seat is separated. It is also possible to employ joints that cannot be used.

・座部材２８と継手本体２１との係合態様は、雌ねじ孔２８１と雄ねじ２２１との螺合に限定されない。例えば、図５（ａ）及び図５（ｂ）に示すように、座部材２８Ａを継手本体２１に外挿するとともに、継手本体２１の外周面に形成された環状溝２２４にＣ字状のスナップリング６５を外嵌させて座部材２８Ａに当接させることもできる。この場合、座部材２８Ａの中心孔の形状及び継手本体２１の外周形状を非円形状にすることが、継手本体２１と座部材２８Ａとの相対回転を規制する上で好ましい。非円形状としては他に多角形状や長円形状などであってもよい。またこの場合、スナップリング６５により継手本体２１に対して座部材２８Ａが軸線方向に相対移動することを規制できる。   -The engagement aspect of the seat member 28 and the coupling main body 21 is not limited to the screwing of the internal thread hole 281 and the external thread 221. For example, as shown in FIGS. 5A and 5B, the seat member 28A is extrapolated to the joint body 21, and a C-shaped snap is inserted into the annular groove 224 formed on the outer peripheral surface of the joint body 21. The ring 65 can be externally fitted and brought into contact with the seat member 28A. In this case, it is preferable that the shape of the central hole of the seat member 28A and the outer peripheral shape of the joint body 21 be non-circular in order to restrict the relative rotation between the joint body 21 and the seat member 28A. In addition, the non-circular shape may be a polygonal shape or an oval shape. In this case, the snap ring 65 can restrict the seat member 28A from moving relative to the joint body 21 in the axial direction.

１０…第１継手、１０１…案内部材、１１…本体、１２…第１端部、１２１…内筒部、１２２…外筒部、１２３…縮径部、１２４…拡径部、１２５…段差部、１３…第２端部、１３１…内筒部、１３２…外筒部、１４…キャップ、１４１…テーパ部、１４５…カバー、１５…Ｏリング、１６…第１規制リング、１７…ロックリング、１８…第２規制リング、１９…割リング、２０…第２継手、２１…継手本体、２２…筒体、２２１…雄ねじ、２２２…雌ねじ、２２３…突条、２２４…環状溝、２３…保持リング、２４…Ｏリング、２５…ロックリング、２６…スペーサ、２７…インコア、２７１…鍔部、２８，２８Ａ…座部材、２８１…雌ねじ孔、２９…ねじ孔、３０，１３０…パイプ、３１…第１端、３２…第２端、４０…パッキン、４１…シート部、４２…中心孔、４３…ねじ孔、４４…除去予定部、４５…脆弱部、５０…ロックナット、５５…案内プラグ、６１…ねじ、６５…スナップリング、７１…第１壁、７２…第２壁、８１…第１貫通孔、８２…第２貫通孔、９１…第１開口、９２…第２開口、Ｓ…部分接続体。   DESCRIPTION OF SYMBOLS 10 ... 1st coupling, 101 ... Guide member, 11 ... Main body, 12 ... 1st edge part, 121 ... Inner cylinder part, 122 ... Outer cylinder part, 123 ... Reduced diameter part, 124 ... Expanded diameter part, 125 ... Step part , 13 ... second end part, 131 ... inner cylinder part, 132 ... outer cylinder part, 14 ... cap, 141 ... taper part, 145 ... cover, 15 ... O-ring, 16 ... first regulating ring, 17 ... lock ring, DESCRIPTION OF SYMBOLS 18 ... 2nd restriction ring, 19 ... Split ring, 20 ... 2nd coupling, 21 ... Joint main body, 22 ... Cylindrical body, 221 ... Male screw, 222 ... Female screw, 223 ... Projection, 224 ... Annular groove, 23 ... Holding ring , 24 ... O-ring, 25 ... lock ring, 26 ... spacer, 27 ... in-core, 271 ... buttock, 28, 28A ... seat member, 281 ... female screw hole, 29 ... screw hole, 30, 130 ... pipe, 31 ... 1 end, 32 ... 2nd end, 40 ... packing, 41 Sheet part 42 ... Center hole 43 ... Screw hole 44 ... Planned removal part 45 ... Fragile part 50 ... Lock nut 55 ... Guide plug 61 ... Screw 65 ... Snap ring 71 71 First wall 72 ... 2nd wall, 81 ... 1st through-hole, 82 ... 2nd through-hole, 91 ... 1st opening, 92 ... 2nd opening, S ... Partially connected body.

Claims (1)

壁に形成された貫通孔に挿通される合成樹脂製のパイプと、
前記パイプの第１端が接続され、前記貫通孔の第１開口から外部に突出する第１継手と、
前記パイプの第２端が接続される継手本体と、前記継手本体における前記貫通孔の第２開口から外部に突出する部位に対して着脱可能に設けられる座部材とを有する第２継手と、を備え、
前記第１継手は、前記貫通孔の内部に全体を挿通不可能な形状を有し、
前記第２継手の前記継手本体における前記第２開口から外部に突出する部位は前記貫通孔の内部に挿通可能な形状を有するとともに、前記座部材は前記貫通孔の内部に全体を挿通不可能な形状を有し、
前記第２継手の前記継手本体の最大外径が、前記第１継手における前記貫通孔内に挿入配置される部分の最大外径よりも小さい、
配管システム。 A synthetic resin pipe inserted through a through-hole formed in the wall;
A first joint connected to the first end of the pipe and projecting outward from the first opening of the through hole;
A second joint having a joint main body to which a second end of the pipe is connected, and a seat member provided detachably with respect to a portion projecting outside from the second opening of the through hole in the joint main body; Prepared,
The first joint has a shape that cannot be entirely inserted into the through hole,
The portion of the second joint that protrudes from the second opening to the outside of the joint body has a shape that can be inserted into the through hole, and the seat member cannot be entirely inserted into the through hole. shape have a,
A maximum outer diameter of the joint body of the second joint is smaller than a maximum outer diameter of a portion inserted and arranged in the through hole in the first joint;
Piping system.
JP2016035510A 2016-02-26 2016-02-26 Piping system Active JP6390640B2 (en)

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JPS5916616Y2 (en) * 1980-12-19 1984-05-15 株式会社ほくさん Ceiling mounting device for ceiling-hanging outlets
JPS58151764U (en) * 1982-04-07 1983-10-11 松下電器産業株式会社 Piping fittings for wall mounting
JPS63115980U (en) * 1987-01-19 1988-07-26
JPH0545375U (en) * 1991-11-19 1993-06-18 征一郎 相合 Panel fitting for semiconductor wafer cleaning equipment
JP3304075B2 (en) * 1999-08-31 2002-07-22 株式会社オンダ製作所 Fittings for mixing faucets
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JP2009180258A (en) * 2008-01-29 2009-08-13 Onda Seisakusho Seki Kojo:Kk Joint and inspection plug installed on the joint
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JP2010266067A (en) * 2009-04-16 2010-11-25 Sekisui Chem Co Ltd Pipe joint for wall penetration part, and wall fixing method for the same
JP5457957B2 (en) * 2010-07-07 2014-04-02 未来工業株式会社 Wall penetration structure of fluid pipe, wall penetration method of fluid pipe, wall penetration member, and joint for wall penetration hole
JP6026126B2 (en) * 2011-11-17 2016-11-16 株式会社キッツ Fitting with fixed seat and its assembly method
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