JP2007146992A

JP2007146992A - Branch fitting, snow melting sprinkler pipe unit amd snow melting panel unit using this branch fitting, and resin pipe connection method

Info

Publication number: JP2007146992A
Application number: JP2005343538A
Authority: JP
Inventors: Tsuyoshi Kugo; 剛志久胡; Tsuneaki Takahashi; 恒明高橋; Nobuhiro Nishikata; 伸広西方; Eiji Takada; 栄治高田
Original assignee: Hitachi Metals Ltd
Current assignee: Proterial Ltd
Priority date: 2005-11-29
Filing date: 2005-11-29
Publication date: 2007-06-14

Abstract

<P>PROBLEM TO BE SOLVED: To provide a branch fitting capable of absorbing extension and contraction of a resin pipe in accordance with changes of temperature, while maintaining connection with the resin pipe stably, and ensuring strength of a branch pipe for connecting an external device or a branched pipe. <P>SOLUTION: A collar part 22a formed on the branch pipe 22 is locked into an inner face of a flow passage hole of a fitting main body 11 to protrude a cylindrical part 22b of the branch pipe 22 from an outer face, and a part in the vicinity of a through hole 11a of the fitting main body 11 is nipped and held by a fixing device 23 mounted annularly in the cylindrical part 22b and the collar part 22a to fix the branch pipe 22. In addition, a packing 11g is annularly mounted between an inclined face 11f formed in such a way that its diameter is gradually expanded toward the outside and the resin pipe B in an end part of the flow passage hole 11d so as to protrude outward and partially from the end part, and this packing 11g is pressed toward the inside by a pressing member 11h to connect the resin pipe B. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

本発明は、樹脂管同士を接続接続すると同時に分岐させるための分岐継手と、この分岐継手を用いた消雪スプリンクラ配管ユニット及び消雪パネルユニット、さらに、分岐継手における樹脂管接続方法に関する。 The present invention relates to a branch joint for connecting and connecting resin pipes at the same time as branching, a snow extinguishing sprinkler piping unit and a snow extinguishing panel unit using the branch joint, and a resin pipe connecting method in the branch joint.

流体を流すための管（本管）から支管を分岐させるのには、管同士を突き合わせるように接続すると同時に分岐ができる所謂、分岐継手を用いてこれの分岐接続部に支管を接続したり、管の中途部に分水栓等の機器を配設し、これに支管を接続するのが一般的である。 In order to branch a branch pipe from a pipe (main pipe) for flowing a fluid, a branch pipe can be connected to this branch connection portion by using a so-called branch joint that can branch at the same time as connecting the pipes together. In general, a device such as a water faucet is arranged in the middle of the pipe, and a branch pipe is connected to this.

前者の分岐継手として、例えば、本件出願人が既に提案した分岐継手がある。この分岐継手は、外周面に少なくとも一箇所の開口を設け、その開口に分岐管接続用ソケットを接合したハウジングと、分岐管接続用ソケットに対応する位置に中空突出部を有する弾性シール部材を有し、弾性シール部材は、ハウジングの長手方向の流路内周を覆うと共に、前記中空突出部を分岐管接続用ソケットへ内挿してハウジング内に嵌挿され、ハウジングの軸方向の一方の端部は被接続管の抜け防止を行うグリップリングを設けた固定端とし、他方の端部はリップパッキンのみを設けた自由端としてなる（例えば特許文献１参照）。 As the former branch joint, for example, there is a branch joint already proposed by the present applicant. This branch joint has a housing in which at least one opening is provided on the outer peripheral surface, a branch pipe connection socket is joined to the opening, and an elastic seal member having a hollow protrusion at a position corresponding to the branch pipe connection socket. The elastic seal member covers the inner circumference of the flow path in the longitudinal direction of the housing, and is inserted into the housing by inserting the hollow protrusion into the branch pipe connection socket, and has one end in the axial direction of the housing. Is a fixed end provided with a grip ring for preventing the connected pipe from coming off, and the other end is a free end provided with only a lip packing (see, for example, Patent Document 1).

後者の分水栓は、例えば、所定の曲率で湾曲した接合面を有し、その内面に融着用の発熱体が設けられた樹脂製サドルと、前記樹脂製サドルの中央部から突出して設けられ、かつ外周面に雄ねじを有する短管部と、一端が前記短管部の内周面に嵌合される本体と、前記本体の外周面に形成されて前記短管部の端面に係止される鍔とを有する金属製アダプタとで構成されている。
このように構成された分水栓は、発熱体を加熱することにより本管の外周面と樹脂製サドル内面を溶融して固着し、次いで、分水栓の上部から穿孔治具を挿入して本管の管壁に孔を穿孔して、本管から支管へ連通するようにしている（例えば特許文献２参照）。 The latter water faucet has, for example, a resin saddle having a joining surface curved with a predetermined curvature, and a heat generating element for fusing provided on the inner surface thereof, and is provided so as to protrude from the central portion of the resin saddle. And a short pipe portion having an external thread on the outer peripheral surface, a main body having one end fitted to the inner peripheral surface of the short pipe portion, and formed on the outer peripheral surface of the main body and locked to the end surface of the short pipe portion. And a metal adapter having a hook.
The water faucet configured in this way melts and fixes the outer peripheral surface of the main pipe and the inner surface of the resin saddle by heating the heating element, and then inserts a perforating jig from the top of the water faucet. A hole is drilled in the pipe wall of the main pipe so that the main pipe communicates with the branch pipe (see, for example, Patent Document 2).

特開２００５−１５５７０５号公報（第１頁、図２）Japanese Patent Laying-Open No. 2005-155705 (first page, FIG. 2) 特許第３６４３２１６号公報（第３、４頁、図１）Japanese Patent No. 3634216 (3rd, 4th page, FIG. 1)

ところで、上記した分岐継手は様々な配管システムに用いられるが、例えば、寒冷地の鉄道路線において、軌道上に舞い降りる雪を排除するための消雪システムにも用いられている。 By the way, although the above-mentioned branch joint is used for various piping systems, for example, it is also used for a snow extinguishing system for removing snow falling on a track on a railway line in a cold district.

この消雪システムは、スプリンクラによる散水方式や、水を熱媒体とした放熱板を用いその放熱板に舞い降りた雪を溶かす消雪パネルユニット式などがある。例えば、前者のスプリンクラーによる散水方式は、５〜６ｍの複数本の鋼管を、軌道に沿って分岐継手を介しながら直線状に接続していき、夫々の分岐継手の分岐部にスプリンクラヘッドを接続している。 This snow-melting system includes a sprinkler watering method and a snow-dissipating panel unit type that uses a heat-dissipating plate using water as a heat medium and melts snow falling on the heat-dissipating plate. For example, in the former sprinkler watering method, a plurality of 5 to 6 m steel pipes are connected in a straight line through the branch joint along the track, and a sprinkler head is connected to the branch portion of each branch joint. ing.

したがって、上記したように配管は金属製であることから、全体の重量が重くなってしまい、その結果、分岐継手と鋼管の途中には、全体の重量を支える相応の支持部材を取り付ける必要があり、施工性に改良すべき課題が生じていた。もっとも、かかる課題を解決するために、樹脂管を用いれば一見解決するようではあるが、しかしながら、以下の問題点があり、単純に樹脂管を採用することができなかった。 Therefore, since the piping is made of metal as described above, the entire weight becomes heavy. As a result, it is necessary to attach a corresponding support member that supports the entire weight in the middle of the branch joint and the steel pipe. The problem which should be improved in workability has arisen. However, in order to solve such a problem, using a resin tube seems to solve it at first glance. However, however, there are the following problems, and the resin tube cannot be simply adopted.

まず、上記した従来の分岐継手は、ボルト・ナットで鋼管を伸縮可能に締め付ける締結機構を備えた好適なものになってはいるものの、ボルト・ナットによる締結機構であるがため現場施工が若干煩雑である。また、樹脂管は熱膨張係数が鋼管より一桁大きく（鋼管：１．２×１０^−５/℃、樹脂管：１．３×１０^−４/℃）、上記した締結機構では、気温の変化による伸縮の吸収と密着を伴った締結力との兼ね合いが容易ではなかった。即ち、伸縮量が一桁も大きくなると締結力に悪影響を及ぼし、結果シール性能を劣化させることが考えられる。 First of all, although the conventional branch joint described above is suitable with a fastening mechanism for tightening a steel pipe with bolts and nuts in an extendable manner, it is a fastening mechanism with bolts and nuts. It is. The resin pipe has a coefficient of thermal expansion that is an order of magnitude greater than that of the steel pipe (steel pipe: 1.2 × 10 ⁻⁵ / ° C., resin pipe: 1.3 × 10 ⁻⁴ / ° C.). It was not easy to balance the expansion / contraction due to and the fastening force with adhesion. That is, if the amount of expansion / contraction increases by an order of magnitude, it can be considered that the fastening force is adversely affected and the sealing performance is deteriorated as a result.

仮に、後者の分水栓を採用したとしても、そもそも、この分水栓は、管の伸縮を吸収できる構造にはなっていない上に、金属製のアダプタ以外の各構成部は樹脂製であることから、ノズルが回転するスプリンクラヘッドを短管部に接続すれば、短管部に作用する回転モーメントによって、この短管部が損傷することは容易に推察でき、採用することはできない。 Even if the latter faucet is adopted, this faucet is not designed to absorb the expansion and contraction of the tube, and each component other than the metal adapter is made of resin. Therefore, if the sprinkler head in which the nozzle rotates is connected to the short tube portion, it can be easily estimated that the short tube portion is damaged by the rotational moment acting on the short tube portion, and it cannot be adopted.

また、後者の分水栓は、上記したように、本管の外周面と加熱溶融して固定し、次いで、分水栓の上部から穿孔治具を挿入して本管の管壁に孔を穿孔して、本管から支管へ連通するようにしているため、管同士の接続作業とは別途の手間がかかっていた。特に、鉄道路線における消雪システムを施工する場合、極めて短期間で施工を完了しなければならないケースが往々にしてあり、現場作業は極力低減したい。この点で後者の分水栓はかかるケースに容易に対応するには不都合であった。 As described above, the latter water faucet is heated and melted and fixed to the outer peripheral surface of the main pipe, and then a drilling jig is inserted from the upper part of the water faucet to make a hole in the main pipe wall. Since it is drilled to communicate from the main pipe to the branch pipe, it takes time and labor separately from the connection work between the pipes. In particular, when constructing a snow extinguishing system on railway lines, there are often cases where construction must be completed in a very short period of time, and it is desirable to reduce field work as much as possible. In this respect, the latter water faucet is inconvenient for easily dealing with such a case.

そこで本発明は、このような状況に鑑みてなされたものであり、配管ユニットの重量が軽減できると共に現場での配管施工作業が軽減され、さらに樹脂管の伸縮を吸収しつつ本管接続部の接合強度及び分岐接続部の強度を向上することができる分岐継手、この分岐継手を用いた消雪スプリンクラ配管ユニット及び消雪パネルユニット、樹脂管接続方法を提供することを目的とする。 Therefore, the present invention has been made in view of such a situation, the weight of the piping unit can be reduced, the piping construction work at the site is reduced, and further, the expansion of the resin pipe is absorbed and the main pipe connection portion is absorbed. An object of the present invention is to provide a branch joint capable of improving the joint strength and the strength of the branch connection portion, a snow-sprinkler sprinkler piping unit and a snow-breaking panel unit using the branch joint, and a resin pipe connection method.

上記技術課題を達成するために、本発明にかかる分岐継手、この分岐継手を用いた消雪スプリンクラ配管ユニット及び消雪パネルユニット、樹脂管接続方法は、下記の技術的手段を講じた。
すなわち、請求項１にかかる分岐継手は、樹脂管同士を接続させると共に該樹脂管同士を結ぶ流路孔を備えた継手本体と、外部へ流路を分岐させる分岐部とを備えた分岐継手であって、前記分岐部は、前記流路孔と前記継手本体の外面とを連通させた貫通孔に該外面から突出するように挿嵌される筒部と、該流路孔の内面に係止される鍔部とを備えてなる分岐パイプと、前記継手本体の外面から突出した前記筒部に環装され、前記継手本体を前記鍔部とで挟持させて前記分岐パイプを固定させる固定具と、前記貫通孔と前記分岐パイプとを密閉させるシール手段とを備えてなり、前記流路孔は、その端部に前記樹脂管を接続させる本管接続部が形成され、該本管接続部に挿入された前記樹脂管と該本管接続部との間に環装されたパッキンと、そのパッキンを内方に向かって押圧させる押圧部材とを備えてなるメカニカル接続部で、前記樹脂管を軸方向移動可能に接続可能とされてなることを特徴とする。 In order to achieve the above technical problem, the branch joint according to the present invention, the snow-sprinkling sprinkler piping unit and the snow-fusing panel unit using the branch joint, and the resin pipe connecting method employ the following technical means.
That is, the branch joint according to claim 1 is a branch joint including a joint main body provided with a flow passage hole for connecting resin pipes and connecting the resin pipes, and a branch portion for branching the flow path to the outside. The branch portion is locked to the inner surface of the channel hole, and a cylindrical portion that is inserted into a through hole that connects the channel hole and the outer surface of the joint body so as to protrude from the outer surface. A branch pipe provided with a flange portion, and a fixture that is mounted on the cylindrical portion protruding from the outer surface of the joint body, and fixes the branch pipe by sandwiching the joint body with the flange portion. And a sealing means for sealing the through hole and the branch pipe, and the flow path hole is formed with a main pipe connecting portion for connecting the resin pipe at an end thereof. A packing wrapped between the inserted resin pipe and the main pipe connection portion; The packing in the inwardly mechanical connecting part comprising a pressing member for pressing, characterized by comprising the resin pipe is an axial movable connected.

請求項１にかかる技術的手段によれば、樹脂管同士を結ぶ流路孔とその流路孔と外面を連通する貫通孔とを備えた継手本体に、分岐パイプに形成した鍔部を該流路孔の内面に係止して分岐パイプの筒部を外面から突出し、筒部に環装した固定具と鍔部とで継手本体の貫通孔近傍の内面と外面とを挟持して分岐パイプを固定する。分岐パイプの鍔部は固定具により継手本体を挟んで締め上げて挟着固定する構造となっている。ここで鍔部が貫通孔周囲の内周曲面に沿って係止させているので鍔部自体が正逆回転が出来ない構造となっており、この鍔部で回転モーメントを受け、よって筒部が破損したり分岐パイプ自体が回転してしまうことがなく強度アップが図られる。また、シール手段で貫通孔と分岐パイプとを密閉する。さらに、本管接続部を、樹脂管を軸方向移動可能に接続するメカニカル接続部にして、樹脂管の伸縮の吸収しながら締結力を維持する。 According to the technical means of the first aspect, the flange portion formed on the branch pipe is connected to the joint body provided with the flow path hole connecting the resin pipes and the through hole communicating with the flow path hole and the outer surface. The tube part of the branch pipe is projected from the outer surface by locking to the inner surface of the passage hole, and the branch pipe is formed by sandwiching the inner surface and the outer surface near the through hole of the joint body with the fixture and the collar part that are wrapped around the tube part. Fix it. The flange portion of the branch pipe has a structure in which the joint body is clamped and fixed by a fixture. Here, since the collar part is locked along the inner peripheral curved surface around the through hole, the collar part itself cannot be rotated in the forward and reverse directions, and receives a rotational moment at the collar part. The strength is improved without being damaged or the branch pipe itself rotating. Further, the through hole and the branch pipe are sealed with a sealing means. Further, the main pipe connecting portion is a mechanical connecting portion for connecting the resin pipe so as to be movable in the axial direction, and the fastening force is maintained while absorbing expansion and contraction of the resin pipe.

請求項２にかかる分岐継手は、請求項１において、前記流路孔の端部は、外方に向かって漸次拡径するような傾斜面に形成され、その傾斜面と前記樹脂管との間に前記パッキンが環装されることを特徴とする。 A branch joint according to a second aspect of the present invention is the branch joint according to the first aspect, wherein the end portion of the flow path hole is formed in an inclined surface that gradually increases in diameter outward, and between the inclined surface and the resin pipe. The packing is wrapped around.

請求項２にかかる技術的手段によれば、外方に向かって漸次拡径するような傾斜面に形成した流路孔の端部と樹脂管との間にパッキンを環装し、押圧部材で内方に押圧することで、継手本体の内方と樹脂管の外周面に押圧力が分力して、流路孔の端部と樹脂管とをシールする。 According to the technical means of the second aspect, the packing is provided between the end portion of the flow path hole formed on the inclined surface that gradually increases in diameter toward the outside and the resin tube, and the pressing member is used. By pressing inward, a pressing force is applied to the inner side of the joint body and the outer peripheral surface of the resin tube, and the end of the flow path hole and the resin tube are sealed.

請求項３にかかる分岐継手は、請求項１または２において、前記押圧部材は、前記パッキンの一部突出した端面に当接される枠体状に形成され、前記継手本体は、対向する前記樹脂管同士を一直線状に接続させるように形設されると共に、対向した前記押圧部材同士に係合され該押圧部材同士の離間距離を伸縮させるタイロッドを備えてなることを特徴とする。 A branch joint according to a third aspect of the present invention is the branch joint according to the first or second aspect, wherein the pressing member is formed in a frame shape that abuts against a partly projecting end surface of the packing, and the joint main body is the resin The tube is formed so as to be connected in a straight line, and is provided with a tie rod that is engaged with the pressing members facing each other and expands and contracts the distance between the pressing members.

請求項３にかかる技術的手段によれば、押圧部材同士の離間距離を伸縮させるタイロッドで、対向した押圧部材同士を内方へ向かって押圧して、流路孔の両端部と双方の樹脂管とを双方のパッキンで同時にシールする。 According to the technical means concerning Claim 3, with the tie rod which expands / contracts the separation distance of pressing members, the opposing pressing members are pressed inwardly, the both ends of a flow-path hole, and both resin pipes Are sealed simultaneously with both packings.

請求項４にかかる分岐継手は、請求項１〜３の何れかにおいて、前記シール手段は、前記継手本体の外面と対向する前記固定具の底面内側のコーナー部を、上方に向かって漸次縮径する傾斜面状に形成され、その傾斜面状の前記コーナー部に、該傾斜面に沿うように中空の円錐台状に形成されたシール部材が環装されてなり、前記固定具で該シール部材を押圧させて、前記継手本体の外面から突出した筒部外周面と該継手本体の外面とをシールさせてなることを特徴とする。 A branch joint according to a fourth aspect of the present invention is the branch joint according to any one of the first to third aspects, wherein the sealing means gradually reduces the diameter of the corner portion inside the bottom surface of the fixture facing the outer surface of the joint body upward. A sealing member formed in the shape of a hollow truncated cone along the inclined surface is provided around the corner portion of the inclined surface, and the sealing member includes the sealing member. The outer peripheral surface of the cylindrical portion protruding from the outer surface of the joint body and the outer surface of the joint body are sealed.

請求項４にかかる技術的手段によれば、上方に向かって漸次縮径する傾斜面状に形成した固定具の底面内側のコーナー部に、その傾斜面に沿うように中空の円錐台状に形成されたシール部材を環装し、固定具の傾斜面でシール部材を押圧することで、筒部外周面と継手本体の外面とに押圧力が分力して、筒部外周面と継手本体の外面とが同時に密封シールする。また、円錐台状シール部材によれば継手本体の外面から突出した筒部外周面を支持できるので強度的により安定する。 According to the technical means concerning Claim 4, it forms in the shape of a hollow truncated cone along the inclined surface in the corner part inside the bottom face of the fixture formed in the inclined surface shape gradually reduced in diameter upward. The seal member is mounted, and the seal member is pressed by the inclined surface of the fixture, so that the pressing force is divided between the outer peripheral surface of the cylindrical portion and the outer surface of the joint body, and the outer peripheral surface of the cylindrical portion and the joint main body are At the same time, the outer surface is hermetically sealed. Further, according to the frustoconical seal member, the outer peripheral surface of the cylindrical portion protruding from the outer surface of the joint body can be supported, so that the strength is further stabilized.

請求項５にかかる分岐継手は、請求項１〜３の何れかにおいて、前記シール手段は、前記固定具の底面と前記継手本体の外面との間に、この両者に沿うスペーサ部材を介在させると共に、該固定具の底面と該スペーサ部材の底面にＯリングを環装させてなることを特徴とする。 A branch joint according to a fifth aspect of the present invention is the branch joint according to any one of the first to third aspects, wherein the sealing means interposes a spacer member extending between the bottom surface of the fixture and the outer surface of the joint body. An O-ring is provided around the bottom surface of the fixture and the bottom surface of the spacer member.

請求項５にかかる技術的手段によれば、シール手段の他の態様として、例えば継手本体を管体で構成した場合に外周曲面をそのまま利用できる。即ち、この曲面に沿った底面を有するスペーサ部材を、固定具の底面と前記継手本体の外面との間に介在することで面接触を確保し、加えて、固定具の底面と該スペーサ部材の底面にＯリングを環装して密閉性を向上できる。 According to the technical means of the fifth aspect, as another aspect of the sealing means, for example, when the joint body is formed of a tubular body, the outer peripheral curved surface can be used as it is. That is, a spacer member having a bottom surface along the curved surface is interposed between the bottom surface of the fixture and the outer surface of the joint body to ensure surface contact, and in addition, the bottom surface of the fixture and the spacer member Sealing can be improved by mounting an O-ring on the bottom.

請求項６にかかる分岐継手は、請求項１〜５の何れかにおいて、前記継手本体は、熱可塑性樹脂で構成されていると共に、前記分岐パイプと前記固定具は金属で構成され、前記分岐パイプは、前記樹脂管に対して直交または略直交する方向に延設されていることを特徴とする。 A branch joint according to a sixth aspect of the present invention is the branch joint according to any one of the first to fifth aspects, wherein the joint body is made of a thermoplastic resin, the branch pipe and the fixture are made of metal, and the branch pipe Is extended in a direction orthogonal or substantially orthogonal to the resin tube.

請求項６にかかる技術的手段によれば、継手本体を熱可塑性樹脂で構成して軽量化すると共に、分岐パイプと固定具を金属で構成して強度の向上を図る。 According to the technical means of claim 6, the joint body is made of a thermoplastic resin to reduce the weight, and the branch pipe and the fixture are made of metal to improve the strength.

請求項７にかかる分岐継手は、請求項１〜６の何れかにおいて、前記固定具は、前記筒部の上部と螺合されると共に、前記筒部または前記固定具に、外部装置または分岐管を接続させるための分岐接続部を備えていることを特徴とする。 A branch joint according to a seventh aspect of the present invention is the branch joint according to any one of the first to sixth aspects, wherein the fixture is screwed to an upper portion of the cylindrical portion, and an external device or a branch pipe is connected to the cylindrical portion or the fixture. It is characterized by having a branch connection part for connecting the two.

請求項７にかかる技術的手段によれば、筒部または固定具に備えた分岐接続部に直接外部装置または分岐管を接続して重量や高さを低減できる。 According to the technical means concerning Claim 7, an external apparatus or a branch pipe can be directly connected to the branch connection part with which the cylinder part or the fixture was equipped, and a weight and height can be reduced.

請求項８にかかる分岐継手は、請求項７において、前記分岐接続部は、スプリンクラヘッドと接続可能に構成されると共に、前記固定具は、前記筒部との緩みを防止させる緩み防止手段を備えてなり、前記緩み防止手段は、前記固定具と前記筒部との螺合部に外部から嵌挿又は螺合される係止ピン、及び／又は、前記スプリンクラヘッドの回転方向と該螺合部の捩じ込み方向が前記スプリンクラヘッドの回転方向と同一であることを特徴とする。 A branch joint according to an eighth aspect of the present invention is the branch joint according to the seventh aspect, wherein the branch connection portion is configured to be connectable to a sprinkler head, and the fixture includes a loosening prevention means for preventing looseness with the cylindrical portion. The loosening prevention means includes a locking pin fitted or screwed into the screwed portion between the fixing tool and the cylindrical portion from the outside, and / or the rotation direction of the sprinkler head and the screwed portion. The screwing direction is the same as the rotation direction of the sprinkler head.

請求項８にかかる技術的手段によれば、固定具に緩み防止手段を設けることで、分岐接続部に回転部を有した外部装置であるスプリンクラヘッドを接続しても、接続部分の緩みを防止する。 According to the technical means of claim 8, by providing a loosening prevention means on the fixture, even if a sprinkler head which is an external device having a rotating part is connected to the branch connection part, the connection part is prevented from loosening. To do.

請求項９にかかる消雪スプリンクラ配管ユニットは、請求項７または８に記載の分岐継手と、前記分岐接続部に接続され、回転しながら散水させるスプリンクラヘッドと、前記本管接続部と接続され、少なくとも外周面が熱可塑性樹脂からなる管本体の肉厚内部に複数の開口孔が設けられた管状の金属板が介在されてなる複合樹脂管とを備えてなり、被消雪体に散水させて消雪可能に配管されてなることを特徴とする。 The snow-sprinkling sprinkler piping unit according to claim 9 is connected to the branch joint according to claim 7 or 8, the sprinkler head connected to the branch connection portion and sprinkling water while rotating, and the main pipe connection portion. And a composite resin tube having a tubular metal plate with a plurality of openings provided in the wall thickness of the tube body, the outer peripheral surface of which is made of a thermoplastic resin. It is characterized by being piped so that it can be snow-melted.

請求項１０にかかる消雪パネルユニットは、請求項７に記載の分岐継手を用いた消雪パネルユニットであって、表面に受雪面を備えた放熱板と、前記放熱板の裏面に配置され熱媒体を流動させる放熱管とを備えてなる消雪パネルと、前記本管接続部に接続され、供給元から送られてきた前記熱媒体を前記消雪パネルへ送る複数本の送水管と、前記本管接続部に接続され、前記消雪パネルから排出された前記熱媒体を供給元へ戻す複数本の戻水管と、一端が前記放熱管の入口と接続されると共に、他端が前記送水管に接続された前記分岐継手の前記分岐接続部と接続された第１連結管と、一端が前記放熱管の出口と接続されると共に、他端が前記戻水管に接続された前記分岐継手の前記分岐接続部と接続された第２連結管とを備えてなることを特徴とする。 A snow removal panel unit according to claim 10 is a snow removal panel unit using the branch joint according to claim 7, and is disposed on a heat radiating plate having a snow receiving surface on a surface thereof and on a back surface of the heat radiating plate. A snow-melting panel comprising a heat radiating pipe for flowing a heat medium; a plurality of water-feed pipes connected to the main pipe connecting portion and sending the heat medium sent from a supply source to the snow-dissipating panel; A plurality of return water pipes connected to the main pipe connection section for returning the heat medium discharged from the snow-melting panel to a supply source, one end is connected to an inlet of the heat radiating pipe, and the other end is connected to the feed pipe. A first connecting pipe connected to the branch connecting portion of the branch joint connected to a water pipe, and one end of the branch joint connected to the outlet of the heat radiating pipe and the other end connected to the return pipe. A second connecting pipe connected to the branch connection portion; And butterflies.

請求項９または１０にかかる技術的手段によれば、上記した分岐継手を用いて消雪スプリンクラ配管ユニットを構築したり、消雪パネルユニットを構築することで、全体の重量を軽くしつつ、締結力を維持したまま樹脂管の伸縮に対応する。 According to the technical means according to claim 9 or 10, the above-mentioned branch joint is used to construct a snow extinguishing sprinkler piping unit or a snow extinguishing panel unit, thereby reducing the overall weight and fastening. Responds to expansion and contraction of the resin tube while maintaining the force.

請求項１１にかかる樹脂管接続方法は、前記継手本体に形成した樹脂管同士を結ぶ流路孔と該継手本体の外面とを連通した貫通孔に、分岐パイプを該外面から突出するように挿入し、前記貫通孔の内面に分岐パイプを係止すると共に、前記貫通孔縁部の内面と外面とを金属部材で挟持することにより前記分岐パイプを支持した分岐継手における樹脂管接続方法であって、前記流路孔の端部に挿入した前記樹脂管と該端部内面との間に、該端部から外方へ一部突出するようにパッキンを環装し、そのパッキンを内方に向かって継続的に押圧することにより、前記樹脂管を軸方向移動可能に接続したことを特徴とする。 In the resin pipe connecting method according to claim 11, the branch pipe is inserted so as to protrude from the outer surface into a through hole that connects the flow passage hole connecting the resin pipes formed in the joint body and the outer surface of the joint body. And a resin pipe connection method in a branch joint that supports the branch pipe by locking the branch pipe to the inner surface of the through hole and sandwiching the inner surface and the outer surface of the edge of the through hole with a metal member. A packing is provided between the resin tube inserted into the end of the flow path hole and the inner surface of the end so as to partially protrude outward from the end, and the packing is directed inward. The resin tube is connected so as to be movable in the axial direction by continuously pressing.

本発明によれば、クランプ部と短管部とを樹脂で一体成形した上記の分水栓に比べて、部品構成が少なく簡易であるし、筒部（短管部に相当）の強度アップが容易にできる。仮に、分岐パイプを樹脂で構成して、筒部に作用する回転モーメントによって筒部にダメージがあっても、継手全体を交換することなく、分岐パイプのみを交換すれば良いので、メンテナンス性と経済性を向上することができる。 According to the present invention, compared with the above-described water faucet in which the clamp part and the short pipe part are integrally formed of resin, the configuration of the parts is simple and the strength of the cylindrical part (corresponding to the short pipe part) is increased. Easy to do. Even if the branch pipe is made of resin and the cylinder part is damaged by the rotational moment acting on the cylinder part, it is only necessary to replace the branch pipe without replacing the entire joint. Can be improved.

しかも、パッキンを用いたメカニカル構造の接続部を設けたことで、気温の変化による伸縮の度合いが大きい樹脂管を接続しても、締結力を維持したまま伸縮の吸収が容易に対応するから、管の曲がりや損傷を防止することができる。 In addition, by providing a mechanical structure connection using packing, even if a resin tube with a large degree of expansion and contraction due to changes in temperature is connected, the expansion and contraction can be easily absorbed while maintaining the fastening force. It is possible to prevent the tube from being bent or damaged.

また、上記した分岐継手と樹脂管とを用いて消雪スプリンクラ配管ユニットを構築したり、消雪パネルユニットとすることで、上記の効果に加えて、全体の重量が軽くなるから、全体の重量を支える支持部材の数を大幅に削減することができ、施工性と経済性を向上することができる。 In addition to the above effects, the overall weight can be reduced by constructing a snow extinguishing sprinkler piping unit using the above-mentioned branch joint and resin pipe, or by using a snow extinguishing panel unit. As a result, the number of supporting members that support the structure can be greatly reduced, and the workability and economy can be improved.

次に、本発明にかかる分岐継手、この分岐継手を用いた消雪スプリンクラ配管ユニット及び消雪パネルユニットの実施の形態を説明する。図１〜図８は、本実施の形態にかかる分岐継手を示し、図１〜図４は実施の形態１を、図５及び図６は実施の形態２を、図７は実施の形態３を、図８は実施の形態４を夫々示す。また、図９は本実施の形態にかかる消雪スプリンクラ配管ユニットを、図１０は本実施の形態にかかる消雪パネルユニットを夫々示す。 Next, an embodiment of a branch joint according to the present invention, a snow-melting sprinkler piping unit and a snow-breaking panel unit using the branch joint will be described. 1 to 8 show a branch joint according to the present embodiment, FIGS. 1 to 4 show the first embodiment, FIGS. 5 and 6 show the second embodiment, and FIG. 7 shows the third embodiment. FIG. 8 shows the fourth embodiment. Further, FIG. 9 shows a snow-melting sprinkler piping unit according to this embodiment, and FIG. 10 shows a snow-melting panel unit according to this embodiment.

（実施の形態１）
実施の形態１にかかる分岐継手Ａは、図１及び図２に示すように、継手本体１１と分岐部２１とを備えて構成されている。 (Embodiment 1)
As shown in FIGS. 1 and 2, the branch joint A according to the first embodiment includes a joint body 11 and a branch portion 21.

継手本体１１は、図１に示すように、ポリエチレン等の熱可塑性樹脂で構成された所要長さの丸パイプ状直管の中途部に貫通孔１１ａが穿孔されると共に、流路孔１１ｄの両端部が、外方に向かって漸次拡径するように傾斜面１１ｆが形成されている。この傾斜面１１ｆには、パッキン１１ｇが環装され押圧部材１１ｈでパッキン１１ｇを押圧させて樹脂管Ｂとの接続をするメカニカル接続部１１ｅが配設されている。このメカニカル接続部１１ｅの詳細な説明は後述する。
なお、連通した管内全体が流路孔１１ｄであり、後述する分岐パイプ２２は鍔部２２ａの配設位置を除いた流路孔１１ｄ部分が樹脂管Ｂを接続させる本管接続部１１ｃとなっている。 As shown in FIG. 1, the joint body 11 has a through-hole 11a drilled in the middle part of a round pipe-like straight pipe having a required length made of a thermoplastic resin such as polyethylene, and both ends of a channel hole 11d. An inclined surface 11f is formed so that the diameter of the portion gradually increases outward. On this inclined surface 11f, a packing 11g is mounted, and a mechanical connecting portion 11e for connecting the resin tube B by pressing the packing 11g with a pressing member 11h is disposed. Detailed description of the mechanical connection portion 11e will be described later.
In addition, the whole inside of the pipe | tube connected is the flow path hole 11d, and the branch pipe 22 mentioned later becomes the main pipe connection part 11c to which the flow path hole 11d part except the arrangement | positioning position of the collar part 22a connects the resin pipe B. Yes.

分岐部２１は、分岐パイプ２２と、固定具２３と、シール手段２４とを備えてなる。 The branch portion 21 includes a branch pipe 22, a fixture 23, and a sealing means 24.

分岐パイプ２２は、流路孔１１ｄの内周面に沿うように金属の板状部材を凸湾曲形成された平面視略矩形状の鍔部２２ａと、その鍔部２２ａの中心から垂直に立設された所要長さの中空金属パイプからなる筒部２２ｂとが連通するように一体に形成されている。ステンレス鋼、黄銅、青銅など錆び難い金属からなり、製造にあたっては両者を溶接して一体にするか、あるいは鍛造などで一体成形することもできる。また、この筒部２２ｂは、中途部から先部に亘って後述する固定具２３と螺合させる雄螺子２２ｃが形成されており、中途部から基部の間に貫通孔１１ａ内と密着させるＯリング４が環装されている。 The branch pipe 22 is vertically erected from the center of the flange portion 22a and a substantially rectangular flange portion 22a formed by convexly bending a metal plate member along the inner peripheral surface of the flow path hole 11d. The cylindrical portion 22b made of a hollow metal pipe having a required length is integrally formed so as to communicate with each other. It is made of a metal that does not easily rust, such as stainless steel, brass, or bronze, and can be integrally formed by welding the two together or by forging. Further, the cylindrical portion 22b is formed with a male screw 22c to be screwed with a fixture 23 to be described later from the midway portion to the front portion, and an O-ring to be in close contact with the inside of the through hole 11a between the midway portion and the base portion. 4 is ringed.

このように形成された分岐パイプ２２は、継手本体１１の端部開口から挿入して組み付けられるが、流路孔１１ｄと継手本体１１の外面とを連通させた貫通孔１１ａに、継手本体１１の外面から突出するように筒部２２ｂが挿嵌されていると共に、流路孔１１ｄの内周面に沿った湾曲面形状で平面視では略矩形状である鍔部２２ａを当接し内面に係止されるように配設されている。 The branch pipe 22 formed in this way is inserted and assembled from the end opening of the joint main body 11, but the through hole 11 a that connects the flow path hole 11 d and the outer surface of the joint main body 11 to the through hole 11 a. The cylindrical portion 22b is inserted and protruded so as to protrude from the outer surface, and the curved surface shape along the inner peripheral surface of the flow path hole 11d is brought into contact with the hook portion 22a, which is substantially rectangular in plan view, and locked to the inner surface. It is arranged so that.

この分岐パイプ２２は、鍔部２２ａが流路孔１１ｄの内周面に正逆回転不能に係止しているので分岐パイプ２２を安定して立設状態におくことができ、回転力や振動など外力に対して強い構造となっている。 In this branch pipe 22, since the flange portion 22 a is locked to the inner peripheral surface of the flow path hole 11 d so as not to rotate forward and backward, the branch pipe 22 can be stably placed upright, and rotational force and vibration It has a strong structure against external forces.

この正逆回転が不能な係止構造としては、上記した内周面に沿った形状の鍔部に限らず、例えば、内周面に鍔部形状に一致する凹部を設け、これに鍔部を嵌合するようにしたり、ピンのような係止部材を別途設けて回転不能に構成することも出来る。 The locking structure incapable of forward / reverse rotation is not limited to the shape of the flange portion along the inner peripheral surface described above. For example, a concave portion that matches the shape of the flange portion is provided on the inner peripheral surface, and the flange portion is provided on this. It can be configured to be fitted, or a locking member such as a pin can be separately provided so as not to rotate.

さらに、鍔部に凸部（先鋭状が好適である）複数設けて、流路孔１１ｄの内周面に食い込ませるようにしても良い。すなわち、鍔部２２ａが流路孔１１ｄの内周面に正逆回転不能に係止していれば良いもので、特に限定されない。 Further, a plurality of convex portions (preferably sharpened) may be provided on the collar portion so as to bite into the inner peripheral surface of the flow path hole 11d. That is, the flange portion 22a is not particularly limited as long as the flange portion 22a is locked to the inner peripheral surface of the flow path hole 11d so as not to rotate forward and backward.

固定具２３は、略環状の金属部材であり、筒部２２ｂに形成された雄螺子２２ｃと螺合する雌螺子２３ｂが、中途部から下部に亘って内周面に形成されていると共に、他方、中途部から上部に亘る内周面には、外部装置または分岐管を接続させるための雌螺子からなる分岐接続部２３ａが形成されてなる。材質は特に限定しないが、ステンレス鋼、黄銅、青銅など錆び難い金属であることが望ましい。 The fixing tool 23 is a substantially ring-shaped metal member, and a female screw 23b that engages with a male screw 22c formed in the cylindrical portion 22b is formed on the inner peripheral surface from the middle portion to the lower portion, and the other A branch connection portion 23a made of a female screw for connecting an external device or a branch pipe is formed on the inner peripheral surface extending from the midway portion to the upper portion. The material is not particularly limited, but it is desirable that the material is rust-resistant metal such as stainless steel, brass or bronze.

そしてこの固定具２３を、後述するシール手段２４を介して、筒部２２ｂに形成された雄螺子に螺合・捩じ込んで、貫通孔１１ａ縁部を鍔部２２ａと固定具２３とで挟持することにより、樹脂管Ｂに対して直交方向に分岐パイプ２２を立設支持している。なお、この分岐接続部２３ａは、接続させる外部装置または分岐管に応じて適宜形設されるもので、雌螺子に限定されたものではない。 And this fixing tool 23 is screwed and screwed into a male screw formed in the cylindrical portion 22b through a sealing means 24 described later, and the edge of the through hole 11a is sandwiched between the flange portion 22a and the fixing tool 23. By doing so, the branch pipe 22 is erected and supported in a direction orthogonal to the resin pipe B. The branch connection portion 23a is appropriately formed according to the external device or the branch pipe to be connected, and is not limited to the female screw.

また、この固定具２３は、筒部２２ｂとの螺合の緩みを防止させる緩み防止手段を備えている。この緩み防止手段は、固定具２３と筒部２２ｂとの螺合部に外部から係止ピン５を嵌挿させてなる。この係止ピン５は、筒部２２ｂを貫通させた場合、固定具２３と筒部２２ｂとの緩みは完全に防止できるが、その一方で、流体が外部に漏れ出す惧れがあるため、筒部２２ｂの外周面（雄螺子部分）に食い込ませることが好適である。係止ピン５の位置や本数に制約はないし、係止ピン５は打ち込む形だけでなく所謂止めねじを用いて固定具にねじ込んで筒部２２bに食い込ませてもよい。 Further, the fixture 23 includes a loosening prevention means for preventing loosening of the screwing with the cylindrical portion 22b. This loosening prevention means is formed by fitting a locking pin 5 from the outside into a screwed portion between the fixture 23 and the cylindrical portion 22b. The locking pin 5 can completely prevent loosening of the fixing member 23 and the cylindrical portion 22b when the cylindrical portion 22b is penetrated, but on the other hand, there is a possibility that the fluid leaks to the outside. It is preferable to bite into the outer peripheral surface (male screw portion) of the portion 22b. There is no restriction on the position and number of the locking pins 5, and the locking pins 5 may be not only driven in but also screwed into a fixing tool using a so-called set screw to be bitten into the cylindrical portion 22 b.

また、雌螺子からなる分岐接続部２３ａに接続させる外部装置が、例えば、ノズルが回転するスプリンクラヘッドの場合、この係止ピン５による緩み防止手段と併用して、ノズルの回転方向と螺合部の捩じ込み方向とを同一方向とさせることで、固定具２３と筒部２２ｂとの緩みを完全に防止できる。 Further, when the external device to be connected to the branch connection portion 23a made of a female screw is, for example, a sprinkler head in which the nozzle rotates, the rotation direction of the nozzle and the screwing portion are used in combination with the loosening prevention means by the locking pin 5. By making the direction of screwing the same, the loosening of the fixture 23 and the cylindrical portion 22b can be completely prevented.

シール手段２４は、固定具２３の底面に対向する平面状の上面と、継手本体１１の外面に沿う湾曲状の底面とを有する環状のスペーサ部材２４ａと、そのスペーサ部材２４ａの底面に環装させたＯリング４と、固定具２３の底面に環装させたＯリング４とを備え、継手本体１１の外面と固定具２３の底面との間にこれらの部材が介在されて貫通孔１１ａと分岐パイプ２２とを密閉させている。 The sealing means 24 is mounted on the annular spacer member 24a having a planar upper surface facing the bottom surface of the fixture 23, and a curved bottom surface along the outer surface of the joint body 11, and the bottom surface of the spacer member 24a. The O-ring 4 and the O-ring 4 mounted on the bottom surface of the fixture 23 are provided, and these members are interposed between the outer surface of the joint body 11 and the bottom surface of the fixture 23 to branch from the through hole 11a. The pipe 22 is sealed.

メカニカル接続部１１ｅは、上記したように、流路孔１１ｄの端部に外方に向かって漸次拡径するように形成された傾斜面１１ｆと、本管接続部１１ｃに挿入された樹脂管Ｂとの間に、その傾斜面１１ｆに沿うように中空の円錐台状に形成されたパッキン１１ｇが、端部から外方へ一部突出するように環装され、さらに、このパッキン１１ｇを内方に向かって押圧部材１１ｈで押圧してなる。 As described above, the mechanical connection portion 11e includes the inclined surface 11f formed so as to gradually increase in diameter toward the outer end at the end portion of the flow path hole 11d, and the resin tube B inserted into the main tube connection portion 11c. The packing 11g formed in the shape of a hollow truncated cone along the inclined surface 11f is mounted so as to partially protrude outward from the end portion. It is pressed by the pressing member 11h.

この押圧部材１１ｈは、樹脂管Ｂを挿通可能な孔部が形成された略矩形状かつ縦断面視略コ字状の枠体状部材であり、その押圧部材１１ｈの四隅には係止孔１１ｋが設けられている。 The pressing member 11h is a substantially rectangular frame-shaped member in which a hole portion through which the resin tube B can be inserted is formed, and is substantially U-shaped in a vertical cross-sectional view. Locking holes 11k are formed at four corners of the pressing member 11h. Is provided.

そして、この押圧部材１１ｈは、継手本体１１の両端に、縦断面視略コ字状を形成する突設した側壁が内側を向くように配設され、双方の押圧部材１１ｈの孔部縁部が双方のパッキン１１ｇに当接されている。 And this press member 11h is arrange | positioned so that the side wall which protruded in the both ends of the coupling main body 11 in the longitudinal cross-section view may be turned inside, and the hole edge part of both press members 11h It is in contact with both packings 11g.

さらに、対向した係止孔１１ｋ同士にフランジ状の頭部が形成されたタイロッド１１ｍが一方の押圧部材１１ｈから挿通されると共に、他方の押圧部材１１ｈから突出したタイロッド１１ｍの先部がナット１１ｎと螺着されて、このナット１１ｎの締め込みよって対向した押圧部材１１ｈ同士の離間距離が伸縮するようになっている。ナット１１ｎにはバネ座金状の調整部材を介在させることが好ましい。これにより伸縮による締付け量の緩和を吸収することも出来る。 Further, a tie rod 11m having a flange-shaped head formed between opposing locking holes 11k is inserted from one pressing member 11h, and a tip portion of the tie rod 11m protruding from the other pressing member 11h is a nut 11n. When the nut 11n is screwed, the distance between the opposing pressing members 11h is expanded and contracted. It is preferable that a spring washer-like adjusting member is interposed in the nut 11n. Thereby, relaxation of the tightening amount due to expansion and contraction can be absorbed.

ここで、上記した樹脂管Ｂの構成を説明すると、図１〜図３に示すように、上記した樹脂管Ｂは、複数の開口孔ｂ２が設けられた管状の金属板ｂ１を熱可塑性樹脂からなる管本体ｂ３の肉厚内部に介在させて一体化した複合樹脂管であり、上記した本管接続部１１ｃと電熱による融着を可能とすると同時に、機械的強度を高めつつ樹脂管Ｂの物性である度合いの大きい熱膨張を抑制することができるようになっている。 Here, the structure of the above-described resin tube B will be described. As shown in FIGS. 1 to 3, the above-described resin tube B is formed by using a tubular metal plate b1 provided with a plurality of opening holes b2 from a thermoplastic resin. This is a composite resin pipe that is integrated by interposing inside the wall thickness of the pipe body b3, and can be fused with the main pipe connecting portion 11c by electric heating, and at the same time, the physical properties of the resin pipe B while increasing the mechanical strength. The thermal expansion with a large degree can be suppressed.

なお、この複数の開口孔ｂ２が設けられた管状の金属板ｂ１は、パンチングメタルや網状に組み込んだ金属板ｂ１でも良いもので、特に限定されない。また、上記した樹脂管Ｂ（複合樹脂管）は、少なくとも外周面側のみが熱可塑性樹脂で構成されていれば良いもので、複数の開口孔ｂ２が設けられた管状の金属板ｂ１との２層構造や、内周面側を他の構成材料で３層構造としても良いものである。 The tubular metal plate b1 provided with the plurality of opening holes b2 may be a punching metal or a metal plate b1 incorporated in a net shape, and is not particularly limited. Further, the above-described resin tube B (composite resin tube) is only required to be composed of a thermoplastic resin at least on the outer peripheral surface side, and is a tube metal plate b1 provided with a plurality of opening holes b2. The layer structure or the inner peripheral surface side may be a three-layer structure with other constituent materials.

そして、開口孔ｂ２の開口率の大小により管強度や融着部の融着強度を調節することが可能である。例えば、開口率を大きくとると内外層の樹脂の結び付きは強くなり融着強度も高くなるが、反面管強度は低くなり熱膨張による伸びも大きくなる。逆に開口率が小さいと融着強度は低いが、管強度は高くなり伸びは小さくなる。これらを状況によってバランスをとって選択することが望ましい。 And it is possible to adjust pipe | tube intensity | strength and the melt | fusion intensity | strength of a melt | fusion part by the magnitude | size of the opening rate of the opening hole b2. For example, when the aperture ratio is increased, the bonding between the inner and outer resin layers is increased and the fusion strength is increased, while the tube strength is decreased and the elongation due to thermal expansion is increased. Conversely, if the aperture ratio is small, the fusion strength is low, but the tube strength is high and the elongation is small. It is desirable to select these according to the situation.

以上のように構成された実施の形態１にかかる分岐継手Ａは、継手本体１１に形成した樹脂管Ｂ同士を結ぶ流路孔１１ｄと継手本体１１の外面とを連通した貫通孔１１ａに、流路孔１１ｄの内周面に鍔部２２ａが当接するまで継手本体１１の内側から筒部２２ｂを挿嵌し、次いで、シール手段２４を継手本体１１から突出した筒部２２ｂに環装し、固定具２３を筒部２２ｂに形成した雄螺子に螺合・捩じ込むことで、分岐継手Ａの組立が完了する。 The branch joint A according to the first embodiment configured as described above flows into the through hole 11a that connects the flow passage hole 11d that connects the resin pipes B formed in the joint body 11 and the outer surface of the joint body 11 to each other. The cylindrical portion 22b is inserted from the inside of the joint body 11 until the flange portion 22a comes into contact with the inner peripheral surface of the passage hole 11d, and then the sealing means 24 is mounted on the cylindrical portion 22b protruding from the joint body 11 and fixed. The assembly of the branch joint A is completed by screwing and screwing the tool 23 into the male screw formed in the cylindrical portion 22b.

そして、この分岐継手Ａと樹脂管Ｂとの接続は、まず、対向する樹脂管Ｂの双方に押圧部材１１ｈを遊嵌すると共にパッキン１１ｇを嵌着させておく。 For connection between the branch joint A and the resin pipe B, first, the pressing member 11h is loosely fitted to both of the opposing resin pipes B, and the packing 11g is fitted.

次いで、双方の樹脂管Ｂを、その末端が鍔部２２ａに当接するまで本管接続部１１ｃに挿入し、対向した係止孔１１ｋ同士に結ぶようにタイロッド１１ｍを一方の押圧部材１１ｈから挿通し、他方の押圧部材１１ｈから突出したタイロッド１１ｍの先部にナット１１ｎを螺着する。 Next, both the resin pipes B are inserted into the main pipe connecting part 11c until their ends abut against the flange part 22a, and the tie rod 11m is inserted from one pressing member 11h so as to be connected to the opposing locking holes 11k. The nut 11n is screwed to the tip of the tie rod 11m protruding from the other pressing member 11h.

このとき、ナット１１ｎの締め加減によって、対向した押圧部材１１ｈ同士の離間距離が伸縮して、押圧部材１１ｈの孔部縁部に当接した双方のパッキン１１ｇが内側及び樹脂管Ｂの径内側方向に向かって押圧されて、シール性を維持したまま対向する樹脂管Ｂを軸方向移動可能に接続する。 At this time, due to the tightening of the nut 11n, the separation distance between the opposing pressing members 11h expands and contracts, and both packings 11g contacting the edge of the hole of the pressing member 11h are inward and radially inward of the resin tube B. The resin pipes B that are opposed to each other while being sealed are connected so as to be movable in the axial direction.

さらに、この分岐継手Ａとスプリンクラヘッド等の外部装置との接続は、分岐接続部２３ａに外部装置を係合（螺着）し、固定具２３と筒部２２ｂとの螺合部に係止ピン５を挿嵌して固定する。 Further, the branch joint A is connected to an external device such as a sprinkler head by engaging (screwing) the external device with the branch connection portion 23a, and a locking pin on the screwed portion between the fixture 23 and the cylindrical portion 22b. 5 is inserted and fixed.

このように実施の形態１にかかる継手本体１１は、長期に亘って筒部２２ｂの堅牢性を維持することができると共に、気温の変化による伸縮の度合いが大きい樹脂管Ｂを接続しても、締結力を維持したまま伸縮の吸収が容易にできるようになっている。 As described above, the joint body 11 according to the first embodiment can maintain the robustness of the cylindrical portion 22b for a long period of time, and even when the resin pipe B having a large degree of expansion and contraction due to a change in temperature is connected, The expansion and contraction can be easily absorbed while maintaining the fastening force.

（実施の形態２）
実施の形態２にかかる分岐継手Ａは、図５及び図６に示すように、実施の形態１で例示した分岐継手Ａに接続される樹脂管Ｂの末端処理の変形例であり、その他の構成は実施の形態１と同一であるため、同一符号を付して詳細な説明は省略し、相違部分のみを以下詳述する。 (Embodiment 2)
As shown in FIGS. 5 and 6, the branch joint A according to the second embodiment is a modification of the end treatment of the resin pipe B connected to the branch joint A exemplified in the first embodiment. Since this is the same as that of the first embodiment, the same reference numerals are given and detailed description thereof is omitted, and only different portions will be described in detail below.

すなわち、実施の形態２にかかる樹脂管Ｂは、実施の形態１で例示した樹脂管Ｂのように、末端部分に何ら処理が施されていないと、金属板ｂ１と水が接触する、あるいは管本体ｂ３と電熱線３１との間に水や粉塵が入り込む惧れがあり、金属板の腐食や融着強度不良の原因になる。そこで、例えば図５に示すように、樹脂や腐食しない他の材料でリング状部材ｂ４を形成して樹脂管Ｂの末端に接合または嵌めて固着させている。 That is, the resin tube B according to the second embodiment is in contact with the metal plate b1 or water unless the end portion is treated like the resin tube B illustrated in the first embodiment. There is a possibility that water and dust may enter between the main body b3 and the heating wire 31, which causes corrosion of the metal plate and poor fusion strength. Therefore, for example, as shown in FIG. 5, a ring-shaped member b4 is formed of resin or another material that does not corrode, and is bonded or fixed to the end of the resin tube B.

また、図６に示すように、樹脂管Ｂの外径にあわせると共に樹脂管Ｂの内周面に入り込ませた熱可塑性樹脂とか、腐食しない他の材料でかかる形状に形設したリング状部材ｂ５を固着しても良い。 Further, as shown in FIG. 6, a ring-shaped member b5 formed in such a shape with a thermoplastic resin that fits the outer diameter of the resin tube B and enters the inner peripheral surface of the resin tube B, or other material that does not corrode. May be fixed.

（実施の形態３）
実施の形態３にかかる分岐継手Ａは、図７に示すように、実施の形態１で例示したシール手段２４の変形例を示しており、実施の形態１と共通する構成部は、同一符号を付して詳細な説明は省略し、相違部分のみを以下詳述する。 (Embodiment 3)
As shown in FIG. 7, the branch joint A according to the third embodiment shows a modification of the sealing means 24 exemplified in the first embodiment, and the components common to the first embodiment are denoted by the same reference numerals. Detailed description will be omitted, and only the differences will be described in detail below.

実施の形態３にかかる継手本体１２は、実施の形態１にかかる継手本体１１の貫通孔１１ａ側の周縁部のみ上面が平坦状のボス１２ａが形成されてなる。なお、実施の形態１にかかる継手本体１１の貫通孔１１ａ側の上面が平坦状に形成しても良い。この場合、平坦面は切削加工で容易に形成できる。 The joint main body 12 according to the third embodiment is formed by forming a boss 12a having a flat upper surface only at the peripheral edge on the through hole 11a side of the joint main body 11 according to the first embodiment. In addition, you may form the upper surface by the side of the through-hole 11a of the coupling main body 11 concerning Embodiment 1 in flat shape. In this case, the flat surface can be easily formed by cutting.

実施の形態３にかかるシール手段２８は、固定具２６と、シール部材２９とを備えてなる。 The sealing means 28 according to the third embodiment includes a fixture 26 and a seal member 29.

固定具２６は、略環状の金属部材であり、筒部２２ｂに形成された雄螺子と螺合する雌螺子が、中途部から下部近傍に亘って内周面に形成されていると共に、継手本体１２の外面と対向する底面内側のコーナー部２６ｂが、上方に向かって漸次縮径する傾斜面状に形成されている。また、中途部から上部に亘る内周面には、外部装置または分岐管を接続させるための雌螺子からなる分岐接続部２６ａが形成されてなる。 The fixture 26 is a substantially annular metal member, and a female screw that is screwed with a male screw formed in the cylindrical portion 22b is formed on the inner peripheral surface from the middle portion to the vicinity of the lower portion, and the joint body A corner portion 26b on the inner bottom surface facing the outer surface of 12 is formed in an inclined surface shape that gradually decreases in diameter upward. Further, a branch connection portion 26a made of a female screw for connecting an external device or a branch pipe is formed on the inner peripheral surface extending from the midway portion to the upper portion.

シール部材２９は、ＮＢＲなどのゴム材からなり、固定具２６の傾斜面状のコーナー部２６ｂに、傾斜面に沿うように中空の円錐台状に形成されており、かかるコーナー部２６ｂに環装されている。コーナー部２６の下端は継手本体の平坦面に密接させシール部材がはみ出ないようにしシール面圧を保持するようにしている。 The seal member 29 is made of a rubber material such as NBR, and is formed in a hollow truncated cone shape along the inclined surface on the inclined corner portion 26b of the fixture 26, and is attached to the corner portion 26b. Has been. The lower end of the corner portion 26 is brought into close contact with the flat surface of the joint body so that the seal member does not protrude so as to maintain the seal surface pressure.

以上のように構成された実施の形態３にかかる分岐継手Ａは、固定具２６とボス１２ａとの間にシール部材２９を配設して、固定具２６を筒部２２ｂに捩じ込むことでシール部材２９を押圧して、継手本体１２の外面から突出した筒部２２ｂ外周面と継手本体１２の外面とをシールするようになっている。このような垂直面と水平面の２面を傾斜面で押圧してシールする構造は、例えば回転力が掛かった場合や筒部を傾ける力が掛かった場合、振動の力が掛かった場合にも安定してシールすることができる構造である。 In the branch joint A according to the third embodiment configured as described above, the seal member 29 is disposed between the fixture 26 and the boss 12a, and the fixture 26 is screwed into the cylindrical portion 22b. The seal member 29 is pressed to seal the outer peripheral surface of the cylindrical portion 22 b protruding from the outer surface of the joint body 12 and the outer surface of the joint body 12. Such a structure in which the two surfaces of the vertical surface and the horizontal surface are pressed and sealed with an inclined surface is stable, for example, when a rotational force is applied, when a force for inclining the cylinder portion is applied, or when a vibration force is applied. And can be sealed.

この実施の形態３にかかる分岐継手Ａによれば、実施の形態１で例示した環状のスペーサ部材２４ａを不要としていることから、漏れの恐れのある個所の低減と共にシール性能を向上することが出来る。また、組立性や品質管理性等を向上することができる。 According to the branch joint A according to the third embodiment, since the annular spacer member 24a illustrated in the first embodiment is not necessary, it is possible to improve the sealing performance as well as to reduce the places where there is a risk of leakage. . In addition, assemblability and quality control can be improved.

（実施の形態４）
実施の形態４にかかる分岐継手Ａは、図８に示すように、実施の形態３で例示した固定具２６の高さを継手本体１２の外面から突出した筒部２５ｂより低くなるように形成した固定具２７を備え、一方、固定具２７と螺合される分岐パイプ２５は、その筒部２５ｂ内周面に外部装置または分岐管を接続させるための雌螺子からなる分岐接続部２５ｃを形成してなるもので、実施の形態１及び実施の形態４と共通する構成部に同一符号を付して詳細な説明は省略する。この形態の場合、構成部品も少なく低背で重量も低減されるので、取り付ける外部装置が下記するスプリンクラーヘッドのように継続的に慣性力が掛かるものに対してより好ましい。 (Embodiment 4)
As shown in FIG. 8, the branch joint A according to the fourth embodiment is formed such that the height of the fixture 26 exemplified in the third embodiment is lower than the cylindrical portion 25 b protruding from the outer surface of the joint body 12. On the other hand, the branch pipe 25 provided with the fixture 27 and screwed with the fixture 27 forms a branch connection portion 25c made of a female screw for connecting an external device or a branch pipe to the inner peripheral surface of the cylindrical portion 25b. Therefore, the same components as those in the first and fourth embodiments are denoted by the same reference numerals, and detailed description thereof is omitted. In the case of this embodiment, the number of components is small, the profile is low, and the weight is reduced. Therefore, the external device to be attached is more preferable for a device in which an inertial force is continuously applied like a sprinkler head described below.

（実施の形態５）
実施の形態５は、図９に示すように、実施の形態１で例示した分岐継手Ａと、ノズルｓ１が回転するスプリンクラヘッドＳと、上記した何れの形態の樹脂管Ｂ（複合樹脂管）とを備えてなる消雪スプリンクラ配管ユニットＳＵを例示している。なお、スプリンクラヘッドＳは、雌螺子からなる分岐接続部２３ａと螺合する基部ｓ２と、回転ノズルｓ１とを備えた周知構造のもので、詳細な説明は省略する。 (Embodiment 5)
In the fifth embodiment, as shown in FIG. 9, the branch joint A exemplified in the first embodiment, the sprinkler head S in which the nozzle s1 rotates, and the resin pipe B (composite resin pipe) in any form described above The snow-sprinkling sprinkler piping unit SU provided with is illustrated. The sprinkler head S has a known structure including a base portion s2 that is screwed with a branch connection portion 23a made of a female screw, and a rotating nozzle s1, and detailed description thereof is omitted.

この場合、固定具２３と筒部２５ｂとの螺合の緩みを防止する緩み防止手段が、固定具２３と筒部２２ｂとの螺合部に外部から嵌挿した係止ピン５に加え、ノズルｓ１の回転方向と螺合部の捩じ込み方向とが同一方向となっており、固定具２３と筒部２２ｂとの緩みを完全に防止できるようになっている。 In this case, the loosening prevention means for preventing the loosening of the fixing member 23 and the cylindrical portion 25b is provided in addition to the locking pin 5 fitted from the outside into the screwing portion of the fixing tool 23 and the cylindrical portion 22b. The rotation direction of s1 and the screwing direction of the screwing portion are the same direction, and the looseness between the fixture 23 and the cylindrical portion 22b can be completely prevented.

このように構成された消雪スプリンクラ配管ユニットＳＵは、所要長さの複数本の樹脂管Ｂ（複合樹脂管）を、例えば鉄道路線の軌道に沿って分岐継手Ａを介しながら直線状に接続していき、夫々の分岐継手Ａの分岐部２１にスプリンクラヘッドＳを接続して構築する。 The snow extinguishing sprinkler piping unit SU configured in this way connects a plurality of resin pipes B (composite resin pipes) of a required length in a straight line through branch joints A along, for example, the railroad track. The sprinkler head S is connected to the branch portion 21 of each branch joint A and constructed.

このようにして構築された消雪スプリンクラ配管ユニットＳＵは、樹脂管Ｂとの接続を強固にし、機械的強度のある極めて軽量な樹脂管Ｂとしたことで、全体の重量が軽くすることができ、その結果、分岐継手Ａと樹脂管Ｂの途中には、全体の重量を支える相応の支持部材の数を大幅に削減または無くすことができる。 The snow extinguishing sprinkler piping unit SU constructed in this way has a strong connection with the resin pipe B, and is an extremely lightweight resin pipe B with mechanical strength, so that the overall weight can be reduced. As a result, in the middle of the branch joint A and the resin pipe B, the number of corresponding support members that support the entire weight can be greatly reduced or eliminated.

加えて、ノズルｓ１が回転するスプリンクラヘッドＳによって、筒部に回転モーメントが作用しても分岐部２１を構成する分岐パイプと固定具を金属製にし、分岐パイプの鍔部を内面に沿った湾曲と矩形状にしているので回転等の外力に対して抵抗力を発揮する。さらに、この鍔部と固定具とで継手本体を挟んで固着するので、筒部が損傷することなく、長期に亘って堅牢性を維持することができる。 In addition, the sprinkler head S in which the nozzle s1 rotates makes the branch pipe and the fixture constituting the branch section 21 made of metal even when a rotational moment is applied to the cylinder portion, and the collar portion of the branch pipe is curved along the inner surface. Because of its rectangular shape, it exhibits resistance to external forces such as rotation. Furthermore, since the flange body and the fixing tool sandwich and fix the joint body, the cylinder portion is not damaged and the robustness can be maintained over a long period of time.

なお、実施の形態５は、実施の形態１で例示した分岐継手Ａを用いたものを例示したが、実施の形態２〜４の何れかの分岐継手Ａを用いて構築しても良く、何れの分岐継手Ａもメカニカル接続の本管接続部１１ｃを備えていることから、気温の変化による伸縮の度合いが大きい樹脂管Ｂを接続しても、締結力を維持したまま伸縮の吸収が容易にでき、極めて好適である。とりわけ、実施の形態４にかかる分岐継手Ａを用いて消雪スプリンクラ配管ユニットＳＵを構築すれば、この例の分岐部２１は構造が簡素で重量も軽減されているので好ましい。 In addition, although Embodiment 5 illustrated what used the branch joint A illustrated in Embodiment 1, you may construct | assemble using any branch joint A of Embodiment 2-4, Since the branch joint A is also provided with a mechanically connected main pipe connection portion 11c, even if a resin pipe B having a large degree of expansion and contraction due to changes in temperature is connected, the expansion and contraction can be easily absorbed while maintaining the fastening force. It is very suitable. In particular, if the snow-shrinking sprinkler piping unit SU is constructed using the branch joint A according to the fourth embodiment, the branch portion 21 of this example is preferable because the structure is simple and the weight is reduced.

また、上述した樹脂管Ｂを用いて消雪スプリンクラ配管ユニットＳＵを構築すれば、気温の変化による伸縮は金属板により抑制することができ、実質的に鋼管と変わらない。よって、鋼管の強度及び低伸縮と、樹脂管による軽量化の両方の利点を引き出すことが可能であり配管ユニットを支える支持部材を低減することも出来る。 Moreover, if the snow-sprinkling sprinkler piping unit SU is constructed using the resin pipe B described above, expansion and contraction due to a change in temperature can be suppressed by a metal plate, and substantially the same as a steel pipe. Therefore, it is possible to bring out the advantages of both strength and low expansion / contraction of the steel pipe and weight reduction by the resin pipe, and it is possible to reduce the supporting member that supports the piping unit.

（実施の形態６）
実施の形態６は、図１０に示すように、実施の形態１〜４の何れかの分岐継手Ａを用いた消雪パネルｐ１ユニットＰＵが例示されている。この消雪パネルｐ１ユニットＰＵは、消雪パネルｐ１と、送水管ｐ５と、リバース管ｐ６と、戻水管ｐ７と、第１連結管ｐ８と、第２連結管ｐ９とを備えて構築されている。 (Embodiment 6)
As shown in FIG. 10, the sixth embodiment exemplifies a snow-dissipating panel p1 unit PU using the branch joint A of any of the first to fourth embodiments. This snow extinguishing panel p1 unit PU is constructed with a snow extinguishing panel p1, a water supply pipe p5, a reverse pipe p6, a return water pipe p7, a first connecting pipe p8, and a second connecting pipe p9. .

消雪パネルｐ１は、表面に受雪面を備えた略矩形状の放熱板ｐ２と、その放熱板ｐ２の裏面に支持具ｐ３により支持され放熱板ｐ２の端部で折り返して形成された葛折状の放熱管ｐ４とを備えてなる。 The snow extinguishing panel p1 has a substantially rectangular heat radiating plate p2 having a snow receiving surface on the surface, and a twist formed by folding back at the end of the heat radiating plate p2 supported by a support tool p3 on the back surface of the heat radiating plate p2. And a heat radiating pipe p4.

送水管ｐ５は、上記した樹脂管Ｂからなり、実施の形態１〜４の何れかの分岐継手Ａの両端部に設けた夫々の本管接続部１１ｃに接続されており、分岐継手Ａの分岐部２１に、供給元から送られてきた熱媒体である所要温度の水を送水管ｐ５から分岐させるように接続されている。 The water supply pipe p5 is composed of the above-described resin pipe B, and is connected to the respective main pipe connection portions 11c provided at both ends of the branch joint A of any one of the first to fourth embodiments. The unit 21 is connected so that water having a required temperature, which is a heat medium sent from a supply source, is branched from the water pipe p5.

リバース管ｐ６は、上記した樹脂管Ｂからなり、末端部で後述する戻水管ｐ７の末端部と接続されており、供給元から送られてきたリバース用の水が送水されるようになっている。 The reverse pipe p6 is composed of the above-described resin pipe B, and is connected to the end portion of the return pipe p7 described later at the end portion, so that the reverse water sent from the supply source is supplied. .

戻水管ｐ７は、上記した樹脂管Ｂからなり、実施の形態１〜４の何れかの分岐継手Ａの両端部に設けた夫々の本管接続部１１ｃに接続されており、リバース管ｐ６に送水されたリバース用の水が送水されるようになっていると共に、この分岐継手Ａの分岐部２１から送水してくる（排出された）消雪パネルｐ１からの水をリバース用の水に伴って供給元へ戻すように接続されている。 The return water pipe p7 is composed of the resin pipe B described above, and is connected to each main pipe connection portion 11c provided at both ends of the branch joint A of any of Embodiments 1 to 4, and supplies water to the reverse pipe p6. The reverse water is supplied, and the water from the snow-dissipating panel p1 supplied (discharged) from the branch portion 21 of the branch joint A is accompanied by the reverse water. Connected back to the supplier.

第１連結管ｐ８は、一端が放熱管ｐ４の入口と接続されると共に、他端が送水管ｐ５に接続された分岐継手Ａの分岐接続部２３ａ，２６ａ，２５ｃと接続されており、送水管ｐ５から所要温度の水を放熱管ｐ４に送水して放熱板ｐ２を所要温度に加熱・維持するようになっている。 The first connecting pipe p8 has one end connected to the inlet of the heat radiating pipe p4 and the other end connected to the branch connecting portions 23a, 26a, 25c of the branch joint A connected to the water feeding pipe p5. The water at the required temperature is supplied from p5 to the heat radiating pipe p4 to heat and maintain the heat radiating plate p2 at the required temperature.

第２連結管ｐ９は、一端が放熱管ｐ４の出口と接続されると共に、他端が戻水管ｐ７に接続された分岐継手Ａの分岐接続部２３ａと接続されており、放熱管ｐ４から送水してきた水を戻水管ｐ７に回収するようになっている。 The second connecting pipe p9 has one end connected to the outlet of the heat radiating pipe p4 and the other end connected to the branch connecting portion 23a of the branch joint A connected to the return water pipe p7. Water is collected in the return pipe p7.

なお、第１連結管ｐ８と第２連結管ｐ９の中途部には調整バルブｐ１０が接続されている。 An adjustment valve p10 is connected to the middle part of the first connecting pipe p8 and the second connecting pipe p9.

以上のように構成された実施の形態６にかかる消雪パネルｐ１ユニットＰＵは、例えば、鉄道路線の軌道上に沿って消雪パネルｐ１を敷設し、それらの消雪パネルｐ１同士を、夫々の消雪パネルｐ１に接続された第１連結管ｐ８と第２連結管ｐ９とで、直線状に接続された送水管ｐ５とリバース管ｐ６とに並列状に接続して構築する。 The snow removal panel p1 unit PU according to the sixth embodiment configured as described above, for example, lays the snow removal panel p1 along the railroad track and connects the snow removal panels p1 to each other. The first connecting pipe p8 and the second connecting pipe p9 connected to the snow extinguishing panel p1 are connected in parallel to the water supply pipe p5 and the reverse pipe p6 connected in a straight line.

そして、送水管ｐ５から供給された水が第１連結管ｐ８を介して放熱管ｐ４に入ることで放熱板ｐ２を温め、第２連結管ｐ９を介して戻水管ｐ７に水を回収することで、放熱板ｐ２に舞い降りた雪を溶かすようになっている。 And the water supplied from the water supply pipe p5 enters the heat radiating pipe p4 through the first connecting pipe p8, warms the heat radiating plate p2, and collects water in the return water pipe p7 through the second connecting pipe p9. The snow that falls on the heat sink p2 is melted.

このように構築された実施の形態６にかかる消雪パネルｐ１ユニットＰＵは、機械的強度のある極めて軽量な樹脂管Ｂとしたことで、全体の重量が軽くすることができ、メカニカル接続の本管接続部１１ｃを備えていることから、気温の変化による伸縮の度合いが大きい樹脂管Ｂを接続しても、締結力を維持したまま伸縮の吸収が容易にでき、極めて好適である。 The snowplow panel p1 unit PU according to the sixth embodiment constructed in this way is a very lightweight resin tube B with mechanical strength, so that the overall weight can be reduced, and the mechanical connection book Since the pipe connecting portion 11c is provided, even if the resin pipe B having a large degree of expansion and contraction due to a change in temperature is connected, the expansion and contraction can be easily absorbed while the fastening force is maintained, which is extremely preferable.

以上、本実施の形態にかかる分岐継手、この分岐継手を用いた消雪スプリンクラ配管ユニット、及び、消雪パネルユニットを説明したが、上述した実施の形態は、本発明の好適な実施の形態の一例を示すものであり、本発明はそれに限定されるものではなく、その要旨を逸脱しない範囲内において、種々変形実施が可能である。 As described above, the branch joint according to the present embodiment, the snow extinguishing sprinkler piping unit using the branch joint, and the snow extinguishing panel unit have been described. However, the above-described embodiment is a preferred embodiment of the present invention. This is an example, and the present invention is not limited thereto, and various modifications can be made without departing from the scope of the invention.

例えば、流路孔の端部に挿入した樹脂管と端部内面との間に、端部から外方へ一部突出するようにパッキンを環装し、そのパッキンを内方に向かって継続的に押圧することにより、樹脂管を軸方向移動可能に接続した樹脂管接続方法でも良い。この場合、パッキンを内方に向かって継続的に押圧する手段として、樹脂管の外周面に雄螺子を形成し、この雄螺子にナットを螺着してパッキンを内方に向かって押圧するようにしたり、上記のタイロッドに代えて引っ張りバネを用いたりする等、特に限定されない。 For example, between the resin tube inserted at the end of the flow path hole and the inner surface of the end, a packing is provided so as to partially protrude outward from the end, and the packing is continuously inward. It is also possible to use a resin pipe connection method in which the resin pipe is connected so as to be movable in the axial direction by being pressed. In this case, as means for continuously pressing the packing inward, a male screw is formed on the outer peripheral surface of the resin tube, and a nut is screwed onto the male screw to press the packing inward. Or using a tension spring instead of the above-described tie rod.

また、継手本体に貫通孔を２箇所あるいはそれ以上設け、複数の分岐部を有する分岐継手とすることもできる（図１１に、２箇所に分岐部２１Ｃ、２１Ｄを有した分岐継手Ａ’を例示）。このように本発明の場合、継手本体を汎用の樹脂パイプから形成することも出来るので、特別な成形型が必要でなく経費や管理を削減できる。また構造面でも貫通孔の位置や数の変更が適宜できる。よって分岐部の数や種類を変更したり複合化（例えば、スプリンクラーヘッドの取付部と分岐配管部を併設）することが容易に行えるという利点も有している。尚、樹脂管Ｂは複合樹脂管を用いるのが望ましいと言えるが、金属板ｂ１を有しない通常の樹脂管としても良い。 In addition, two or more through-holes may be provided in the joint body to form a branch joint having a plurality of branch portions (FIG. 11 illustrates a branch joint A ′ having branch portions 21C and 21D at two locations. ). Thus, in the case of this invention, since a coupling main body can also be formed from a general purpose resin pipe, a special shaping | molding die is not required and expense and management can be reduced. Also, the position and number of the through holes can be changed as appropriate in terms of the structure. Therefore, there is an advantage that the number and types of branch portions can be changed or combined (for example, a sprinkler head mounting portion and a branch pipe portion can be easily provided). In addition, although it can be said that it is desirable to use a composite resin pipe for the resin pipe B, it may be a normal resin pipe without the metal plate b1.

実施の形態１にかかる分岐継手と樹脂管とを接続した状態の縦断した斜視図である。It is the perspective view which cut through the state where the branch joint concerning Embodiment 1 and the resin pipe were connected. 同、分岐継手と樹脂管とを接続した状態の縦断面図である。It is a longitudinal cross-sectional view of the state which connected the branch joint and the resin pipe. 同、樹脂管の縦断した斜視図である。It is the perspective view which cut the resin pipe longitudinally. 同、分岐継手の縦断した分解斜視図である。FIG. 3 is an exploded perspective view of the branch joint taken along the vertical direction. 実施の形態２にかかる樹脂管と分岐継手とを接続した状態の縦断面図である。It is a longitudinal cross-sectional view of the state which connected the resin pipe concerning Embodiment 2, and a branch joint. 実施の形態２にかかる樹脂管の変形例と分岐継手とを接続した状態の縦断面図である。It is a longitudinal cross-sectional view of the state which connected the modification of the resin pipe | tube concerning Embodiment 2, and a branch joint. 実施の形態３にかかる分岐継手の縦断した斜視図である。It is the perspective view which carried out the longitudinal section of the branch joint concerning Embodiment 3. FIG. 実施の形態４にかかる分岐継手の縦断した斜視図である。It is the perspective view which carried out the longitudinal section of the branch joint concerning Embodiment 4. FIG. 実施の形態５にかかる消雪スプリンクラ配管ユニットの縦断した分解斜視図である。FIG. 10 is an exploded perspective view of a snow-sprinkling sprinkler piping unit according to a fifth embodiment, which is cut vertically. 実施の形態６にかかる消雪パネルユニットの一部切欠した正面図である。FIG. 10 is a partially cutaway front view of a snow extinguishing panel unit according to a sixth embodiment. 分岐部を２箇所に設けた場合の本実施の形態にかかる分岐継手の縦断正面図である。It is a vertical front view of the branch joint concerning this Embodiment at the time of providing a branch part in two places.

符号の説明Explanation of symbols

Ａ…分岐継手１１，１２…継手本体１１ａ…貫通孔１１ｃ…本管接続部１１ｄ…流路孔１１ｅ…メカニカル接続部１１ｆ…傾斜面１１ｇ…パッキン１１ｈ…押圧部材１１ｋ…係止孔１１ｍ…タイロッド１１ｎ…ナット１２ａ…ボス２１…分岐部２２，２５…分岐パイプ２２ａ…鍔部２２ｂ，２５ｂ…筒部２３，２６，２７…固定具２６ｂ…コーナー部２３ａ，２６ａ，２５ｃ…分岐接続部２４，２８…シール手段２４ａ…スペーサ部材２９…シール部材４…Ｏリング５…係止ピンＢ…樹脂管ｂ１…金属板ｂ２…開口孔ｂ３…管本体ｂ４，ｂ５…リング状部材ＳＵ…消雪スプリンクラ配管ユニットＳ…スプリンクラヘッドｓ１…ノズルｓ２…基部ＰＵ…消雪パネルユニットｐ１…消雪パネルｐ２…放熱板ｐ３…支持具ｐ４…放熱管ｐ５…送水管ｐ６…リバース管ｐ７…戻水管ｐ８…第１連結管ｐ９…第２連結管ｐ１０…調整バルブ A ... Branch joint 11, 12 ... Joint body 11a ... Through hole 11c ... Main pipe connection part 11d ... Channel hole 11e ... Mechanical connection part 11f ... Inclined surface 11g ... Packing 11h ... Pressing member 11k ... Locking hole 11m ... Tie rod 11n ... Nut 12a ... Boss 21 ... Branch part 22,25 ... Branch pipe 22a ... Bridge part 22b, 25b ... Cylinder part 23,26,27 ... Fixing tool 26b ... Corner part 23a, 26a, 25c ... Branch connection part 24,28 ... Sealing means 24a ... Spacer member 29 ... Sealing member 4 ... O-ring 5 ... Locking pin B ... Resin pipe b1 ... Metal plate b2 ... Opening hole b3 ... Pipe body b4, b5 ... Ring-shaped member SU ... Snow-extinguishing sprinkler piping unit S ... Sprinkler head s1 ... Nozzle s2 ... Base PU ... Snow extinguishing panel unit p1 ... Snow extinguishing panel 2 ... heat radiating plate p3 ... support p4 ... radiator tube p5 ... water pipes p6 ... Reverse pipe p7 ... Modomizukan p8 ... first connecting pipe p9 ... second connecting pipe p10 ... regulating valve

Claims

樹脂管同士を接続させると共に該樹脂管同士を結ぶ流路孔を備えた継手本体と、外部へ流路を分岐させる分岐部とを備えた分岐継手であって、
前記分岐部は、
前記流路孔と前記継手本体の外面とを連通させた貫通孔に該外面から突出するように挿嵌される筒部と、該流路孔の内面に係止される鍔部とを備えてなる分岐パイプと、
前記継手本体の外面から突出した前記筒部に環装され、前記継手本体を前記鍔部とで挟持させて前記分岐パイプを固定させる固定具と、
前記貫通孔と前記分岐パイプとを密閉させるシール手段とを備えてなり、
前記流路孔は、その端部に前記樹脂管を接続させる本管接続部が形成され、該本管接続部に挿入された前記樹脂管と該本管接続部との間に環装されたパッキンと、そのパッキンを内方に向かって押圧させる押圧部材とを備えてなるメカニカル接続部で、前記樹脂管を軸方向移動可能に接続可能とされてなることを特徴とする分岐継手。 A joint body including a joint body provided with a flow path hole for connecting the resin pipes and connecting the resin pipes, and a branch part for branching the flow path to the outside,
The branch portion is
A cylindrical portion that is inserted into a through hole that communicates the flow path hole and the outer surface of the joint body so as to protrude from the outer surface; and a flange portion that is locked to the inner surface of the flow path hole. A branch pipe,
A fixture that is mounted around the cylindrical portion protruding from the outer surface of the joint body, and fixes the branch pipe by sandwiching the joint body with the flange portion;
A sealing means for sealing the through hole and the branch pipe;
The flow path hole is formed with a main pipe connection portion for connecting the resin pipe at an end thereof, and is provided between the resin pipe inserted into the main pipe connection portion and the main pipe connection portion. A branch joint characterized in that the resin pipe is connectable so as to be movable in the axial direction by a mechanical connection portion comprising a packing and a pressing member for pressing the packing inward.

前記流路孔の端部は、外方に向かって漸次拡径するような傾斜面に形成され、その傾斜面と前記樹脂管との間に前記パッキンが環装されることを特徴とする請求項１記載の分岐継手。 The end of the flow path hole is formed in an inclined surface that gradually increases in diameter toward the outside, and the packing is provided between the inclined surface and the resin pipe. Item 1. The branch joint according to Item 1.

前記押圧部材は、前記パッキンの一部突出した端面に当接される枠体状に形成され、
前記継手本体は、対向する前記樹脂管同士を一直線状に接続させるように形設されると共に、対向した前記押圧部材同士に係合され該押圧部材同士の離間距離を伸縮させるタイロッドを備えてなることを特徴とする請求項１または２記載の分岐継手。 The pressing member is formed in a frame shape that comes into contact with an end surface of the packing that partially protrudes,
The joint main body is formed so as to connect the opposing resin pipes in a straight line, and includes a tie rod that is engaged with the opposing pressing members and expands / contracts a separation distance between the pressing members. The branch joint according to claim 1 or 2, characterized by the above.

前記シール手段は、
前記継手本体の外面と対向する前記固定具の底面内側のコーナー部を、上方に向かって漸次縮径する傾斜面状に形成され、その傾斜面状の前記コーナー部に、該傾斜面に沿うように中空の円錐台状に形成されたシール部材が環装されてなり、
前記固定具で該シール部材を押圧させて、前記継手本体の外面から突出した筒部外周面と該継手本体の外面とをシールさせてなることを特徴とする請求項１〜３の何れかに記載の分岐継手。 The sealing means includes
A corner portion inside the bottom surface of the fixture facing the outer surface of the joint body is formed in an inclined surface shape that gradually decreases in diameter upward, and the inclined surface portion of the corner portion extends along the inclined surface. The seal member formed in the shape of a hollow frustum is wrapped around,
The seal member is pressed by the fixing tool to seal the outer peripheral surface of the cylindrical portion protruding from the outer surface of the joint body and the outer surface of the joint body. The branch joint described.

前記シール手段は、
前記固定具の底面と前記継手本体の外面との間に、この両者に沿うスペーサ部材を介在させると共に、該固定具の底面と該スペーサ部材の底面にＯリングを環装させてなることを特徴とする請求項１〜３の何れかに記載の分岐継手。 The sealing means includes
A spacer member is interposed between the bottom surface of the fixture and the outer surface of the joint body, and an O-ring is provided around the bottom surface of the fixture and the bottom surface of the spacer member. The branch joint according to any one of claims 1 to 3.

前記継手本体は、熱可塑性樹脂で構成されていると共に、前記分岐パイプと前記固定具は金属で構成され、前記分岐パイプは、前記樹脂管に対して直交または略直交する方向に延設されていることを特徴とする請求項１〜５の何れかに記載の分岐継手。 The joint body is made of a thermoplastic resin, the branch pipe and the fixture are made of metal, and the branch pipe extends in a direction perpendicular or substantially perpendicular to the resin pipe. The branch joint according to any one of claims 1 to 5, wherein

前記固定具は、前記筒部の上部と螺合されると共に、前記筒部または前記固定具に、外部装置または分岐管を接続させるための分岐接続部を備えていることを特徴とする請求項１〜６の何れかに記載の分岐継手。 The said fixing tool is provided with the branch connection part for connecting an external apparatus or a branch pipe to the said cylinder part or the said fixing tool while screwing together with the upper part of the said cylinder part. The branch joint in any one of 1-6.

前記分岐接続部は、スプリンクラヘッドと接続可能に構成されると共に、前記固定具は、前記筒部との緩みを防止させる緩み防止手段を備えてなり、
前記緩み防止手段は、前記固定具と前記筒部との螺合部に外部から嵌挿又は螺合される係止ピン、及び／又は、前記スプリンクラヘッドの回転方向と該螺合部の捩じ込み方向が前記スプリンクラヘッドの回転方向と同一であることを特徴とする請求項７記載の分岐継手。 The branch connection portion is configured to be connectable with a sprinkler head, and the fixture includes a loosening prevention means for preventing loosening with the tube portion,
The loosening prevention means includes a locking pin that is fitted or screwed into the screwed portion between the fixing tool and the cylindrical portion from the outside, and / or the rotation direction of the sprinkler head and the screwing of the screwed portion. The branch joint according to claim 7, wherein an insertion direction is the same as a rotation direction of the sprinkler head.

請求項７または８に記載の分岐継手と、
前記分岐接続部に接続され、回転しながら散水させるスプリンクラヘッドと、
前記本管接続部と接続され、少なくとも外周面が熱可塑性樹脂からなる管本体の肉厚内部に複数の開口孔が設けられた管状の金属板が介在されてなる複合樹脂管と
を備えてなり、
被消雪体に散水させて消雪可能に配管されてなることを特徴とする消雪スプリンクラ配管ユニット。 The branch joint according to claim 7 or 8,
A sprinkler head connected to the branch connection portion and sprinkling water while rotating;
A composite resin pipe connected to the main pipe connecting portion and having a tubular metal plate having a plurality of opening holes in the wall thickness of a pipe body having at least an outer peripheral surface made of a thermoplastic resin. ,
A snow-sprinkling sprinkler piping unit, wherein the snow-sprinkling body is sprinkled with water so that snow can be removed.

請求項７に記載の分岐継手を用いた消雪パネルユニットであって、
表面に受雪面を備えた放熱板と、前記放熱板の裏面に配置され熱媒体を流動させる放熱管とを備えてなる消雪パネルと、
前記本管接続部に接続され、供給元から送られてきた前記熱媒体を前記消雪パネルへ送る複数本の送水管と、
前記本管接続部に接続され、前記消雪パネルから排出された前記熱媒体を供給元へ戻す複数本の戻水管と、
一端が前記放熱管の入口と接続されると共に、他端が前記送水管に接続された前記分岐継手の前記分岐接続部と接続された第１連結管と、
一端が前記放熱管の出口と接続されると共に、他端が前記戻水管に接続された前記分岐継手の前記分岐接続部と接続された第２連結管と
を備えてなることを特徴とする消雪パネルユニット。 A snow extinguishing panel unit using the branch joint according to claim 7,
A snow-dissipating panel comprising a heat radiating plate having a snow receiving surface on a surface thereof, and a heat radiating pipe disposed on the back surface of the heat radiating plate to flow a heat medium;
A plurality of water pipes that are connected to the main pipe connection section and send the heat medium sent from the supply source to the snow-fusing panel;
A plurality of return water pipes connected to the main pipe connection portion and returning the heat medium discharged from the snow-melting panel to a supply source;
A first connecting pipe having one end connected to the inlet of the heat radiating pipe and the other end connected to the branch connecting portion of the branch joint connected to the water supply pipe;
One end is connected to the outlet of the heat radiating pipe, and the other end includes a second connecting pipe connected to the branch connecting portion of the branch joint connected to the return water pipe. Snow panel unit.

前記継手本体に形成した樹脂管同士を結ぶ流路孔と該継手本体の外面とを連通した貫通孔に、分岐パイプを該外面から突出するように挿入し、前記貫通孔の内面に分岐パイプを係止すると共に、前記貫通孔縁部の内面と外面とを金属部材で挟持することにより前記分岐パイプを支持した分岐継手における樹脂管接続方法であって、
前記流路孔の端部に挿入した前記樹脂管と該端部内面との間に、該端部から外方へ一部突出するようにパッキンを環装し、そのパッキンを内方に向かって継続的に押圧することにより、前記樹脂管を軸方向移動可能に接続したことを特徴とする樹脂管接続方法。 A branch pipe is inserted so as to protrude from the outer surface into a through hole that connects the flow passage hole formed between the resin pipes formed in the joint body and the outer surface of the joint body, and the branch pipe is inserted into the inner surface of the through hole. A resin pipe connection method in a branch joint that supports the branch pipe by clamping and holding the inner surface and the outer surface of the through-hole edge with a metal member,
Between the resin pipe inserted into the end of the flow path hole and the inner surface of the end, a packing is provided so as to partially protrude outward from the end, and the packing is directed inward. A resin pipe connecting method, wherein the resin pipe is connected so as to be axially movable by continuously pressing.