JP3795336B2

JP3795336B2 - Branch protection cover for air conditioner refrigerant pipe and branch protection cover device

Info

Publication number: JP3795336B2
Application number: JP2001048849A
Authority: JP
Inventors: 芳治金森; 康治西脇
Original assignee: Mirai Kogyo KK
Current assignee: Mirai Kogyo KK
Priority date: 2001-02-23
Filing date: 2001-02-23
Publication date: 2006-07-12
Anticipated expiration: 2021-02-23
Also published as: JP2002250497A

Description

【０００１】
【発明の属する技術分野】
本発明は、建物の壁面に沿って直線的に取付けられる二本の直状保護カバーを接続して、該カバー内に収容保護されるエアコン冷媒管の一部を壁内側に分岐配管させるエアコン冷媒管の分岐部保護カバー、及び分岐部保護カバー装置に関するものである。
【０００２】
【従来の技術】
上記した分岐部保護カバーは、例えば、建物の一階と二階との間にエアコン冷媒管（以下、単に「冷媒管」と略す場合もある）を通し配管して、その途中において、冷媒管の一部を壁内側に分岐配管させる場合等に使用される。従来の分岐部保護カバーとしては、実開平５−４０６９５号公報に開示されているものが知られている。
【０００３】
上記公報に開示の分岐部保護カバーは、基台と蓋体とから成って、両端部に直状保護カバーの端部を接続可能な接続部が設けられて、直状保護カバーどうしの接続を可能にしていると共に、前記基台に管挿通孔が設けられていて、該管挿通孔から冷媒管を内部に引込み可能にしてあり、上下の各部屋に設置されたエアコンの各冷媒管を、各部屋に形成された壁貫通孔から引き出して、各冷媒管を、建物の外壁面の同一直線上に設置された直状保護カバー内に収容可能にしてある。
【０００４】
しかし、従来の分岐部保護カバーにおいては、基台に形成された前記管挿通孔は、壁に形成された壁貫通孔とほぼ同じ大きさと形状になっている（多くの場合は、ほぼ同一内径の円形孔）ため、分岐部保護カバーを外壁面に設置する際に、自身の管挿通孔と壁貫通孔との位置を合わせて設置しなくてはならず、その位置合わせが非常に面倒であった。
【０００５】
上記位置合わせのために、まず、上階に形成された壁貫通孔を覆う端末保護カバーの基台の固定と、下階に形成された壁貫通孔を覆う上記分岐部保護カバーの基台の固定とを行った後に、上下の各階の壁面に取付けられた端末及び分岐部の各保護カバーの基台間の長さを測定して、この長さに合わせて直状保護カバーを切断して準備しなくてはならず、この長さ合わせの作業は、非常に面倒であった。また、各保護カバーの設置においても、上下の各部屋を何回も移動しなくてはならず、作業性が非常に悪かった。
【０００６】
【発明が解決しようとする課題】
本発明の課題は、壁貫通孔と自身の管挿通孔との正確な位置合わせを行わずに設置可能なエアコン冷媒管の分岐部保護カバー、及び壁貫通孔の外壁面側に嵌め込んだ鍔付リングの鍔部との干渉を避けて配設可能な分岐部保護カバー装置の提供である。
【０００７】
【課題を解決するための手段】
この課題を解決するための請求項１の発明は、基台と、蓋体とから成り、建物の外壁面の同一直線上に設置される二本の直状保護カバーを接続して、該カバー内に収容保護されるエアコン冷媒管の一部を壁内側に分岐配管させる分岐部保護カバーであって、前記基台には、壁貫通孔が形成された前記外壁面に当接される底板部に、前記壁貫通孔から引き出されたエアコン冷媒管を挿通可能とする管挿通孔が形成されてなり、前記管挿通孔は、該管挿通孔から前記壁貫通孔を壁表に臨ませた状態で前記直状保護カバーとの接続位置を前記直線方向に沿って選択可能とすべく、前記直線方向に沿って前記壁貫通孔の内径よりも長く延びる長孔状になっており、前記基台を外壁面に設置した状態で、前記基台の底板部における前記壁貫通孔の外壁面側に嵌め込まれる鍔付リングの鍔部が配置される部分には、前記鍔部との干渉を回避すべく欠落されて、前記管挿通孔に接続する空間部が直線方向に沿って形成されていることを特徴としている。
【０００８】
請求項１の発明によれば、基台に形成された管挿通孔は、建物の外壁面の同一直線上に設置される二本の直状保護カバーの直線方向に沿って前記壁貫通孔の内径よりも長く延びる長孔状になっているために、外壁面に分岐部保護カバーを設置する際に、該外壁面に形成された壁貫通孔に対する前記管挿通孔の前記直線方向（エアコン冷媒管の配管方向）に沿った位置、即ち前記基台の前記直線方向に沿った位置は、所定の許容範囲があるため、両孔の中心位置を正確に位置合わせさせなくても、壁貫通孔に対してエアコン冷媒管を引き出したり、引き入れたりできる。このため、上階と、その下階との間に取付けられる直状保護カバーの長さに関しても、所定の許容範囲があって、該直状保護カバーの切断長が、設定長に対して多少の長短があっても、該直状保護カバーと分岐部保護カバーとの接続が可能となる。即ち、直状保護カバーと分岐部保護カバーとの接続位置が前記許容範囲内で変更されても、外壁面に設けられた壁貫通孔は、分岐部保護カバーの基台の底板部に形成された管挿通孔を通して全体が壁表に臨ませられるので、直状保護カバーと分岐部保護カバーとの接続が可能となる。よって、分岐部保護カバーよりも上階の直状保護カバーの基台を固定した後に、該分岐部保護カバーの基台を固定することが可能となって、上階から下階に向けて全ての配管作業を順次行うことができ、配管作業の能率が高まる。更に、基台を外壁面に設置した状態で、前記基台の底板部における前記壁貫通孔の外壁面側に嵌め込まれる鍔付リングの鍔部が配置される部分には、前記鍔部との干渉を回避すべく欠落されて、前記管挿通孔に接続する空間部が直線方向に沿って形成されているために、壁貫通孔の外壁面側に嵌め込まれる鍔付リングの鍔部との干渉を回避して建物の外壁面に分岐部保護カバーの基台を設置できる。
【０００９】
また、請求項２の発明は、請求項１の発明において、前記基台における前記直線方向に沿った端部には、前記直状保護カバーに内嵌される位置決め突片が形成され、壁面に設置した状態で、該壁面と前記位置決め突片との間には、前記直状保護カバーの基台が挿入可能な空間部が形成されていることを特徴としている。請求項２の発明によれば、分岐部保護カバーよりも上方の直状保護カバーの基台を外壁面に固定した後に、該分岐部保護カバーの基台に形成された位置決め突片を、固定状態の前記直状保護カバーの基台に内嵌することができる。よって、分岐部保護カバーの後設置（後付け）作業を一層容易にできると共に、直状保護カバーは、前記位置決め突片によって、分岐部保護カバーに対して、配管方向と直交する方向に沿った位置決めが行われて、直状及び分岐部の両保護カバーの横方向のずれを防止して、両保護カバーを確実に接続できる。
【００１０】
また、請求項３の発明は、請求項２の発明において、前記位置決め突片は、基台におけるエアコン冷媒管の配管方向に沿った両端部に形成されて、その少なくとも一方は、複数サイズの直状保護カバーに対応可能とすべく前記配管方向に沿って先細り階段状に形成されて、蓋体の接続部には、直状保護カバーのサイズ差を吸収するソケットカバーが取付可能な取付部が形成されていることを特徴としている。請求項３の発明によれば、分岐部保護カバーに対してサイズの異なる複数の直状保護カバーを、配管方向と直交する方向の位置決めを行って接続可能となる。また、分岐部保護カバーと直状保護カバーとを接続する際に、前記分岐部保護カバーに形成された先細り階段状の位置決め突片により、前記配管方向と直交する方向の位置決めを行って、サイズの異なる直状保護カバーを接続すると、各直状保護カバーによって、その接続端（下端）の位置が配管方向に沿って異なることがある。しかし、分岐部保護カバーの基台に形成された管挿通孔は、配管方向に沿って延びているため、サイズの異なる各直状保護カバーの接続端（下端）の前記配管方向に沿った位置ずれは、前記管挿通孔によって吸収されて、サイズの異なる直状保護カバーと分岐部保護カバーとが接続された状態で、分岐部保護カバーの基台の管挿通孔に対してエアコン冷媒管を挿通配管できる。
【００１１】
【００１２】
また、請求項４の発明は、請求項１に記載の分岐部保護カバーと、室内側からエアコン冷媒管を引き出すために、前記外壁面に形成された壁貫通孔の外壁面側に嵌め込まれる鍔付リングとから成る分岐部保護カバー装置とから成ることを特徴としている。請求項４の発明は、請求項１の発明を別の観点から把握したものであって、請求項１の発明と同一の作用効果が奏される。
【００１３】
【発明の実施の形態】
以下、実施例を挙げて、本発明を更に詳細に説明する。図１は、本発明に係る分岐部保護カバーＣ₀を用いてサイズの異なる二本の直状保護カバーＣ₁,Ｃ₂を接続した状態の斜視図であり、図２は、分岐部保護カバーＣ₀を構成する基台Ｖ₀と蓋体Ｌ₀とを表面側から見た分解斜視図であり、図３は、同じく裏面側から見た分解斜視図であり、図４は、基台Ｖ₀の横断面図であり、図５は、同じく縦断面図である。
【００１４】
図１に示されるように、建物の一階と二階との室内側には、それぞれエアコンの室内機１が取付けられ、屋外には、エアコンの室外機２が建物の外壁面Ｗａに近接して設置されている。また、建物の外壁面Ｗａには、冷媒管収容空間の異なる大小２本の各直状保護カバーＣ₁,Ｃ₂が一直線状となって設置されて、下方の直状保護カバーＣ₁の上端部と、上方の直状保護カバーＣ₂の下端部とは、分岐部保護カバーＣ₀を介して接続され、各直状保護カバーＣ₁,Ｃ₂内には、それぞれ所定本数の冷媒管Ｐが配管収容される。建物の一階部分に設置されたサイズの大きな直状保護カバーＣ₁には、二つの室内機１にそれぞれ接続される冷媒管Ｐが収容され、建物の二階部分に取付けられたサイズの小さな直状保護カバーＣ₂には、二階の室内機１のみに接続される半数の冷媒管Ｐが収容される。
【００１５】
また、図９に示されるように、各直状保護カバーＣ₁,Ｃ₂は、ビス（図示せず）を介して建物の外壁面Ｗａに密着状態で固定される基台Ｖ₁,Ｖ₂と、該基台Ｖ₁,Ｖ₂に対して嵌着状態で覆蓋される蓋体Ｌ₁,Ｌ₂とから成って、両者で形成される空間部が冷媒管収容空間Ａ₁,Ａ₂(図１３参照）となっている。なお、図１において、Ｃ₁₁は、二階の室内機１の部分から室外に引き出された冷媒管Ｐを覆って保護する端末保護カバーを示す。
【００１６】
次に、サイズの異なる二本の各直状保護カバーＣ₁,Ｃ₂を接続して、その内部に収容されている冷媒管Ｐを分岐配管可能にするための分岐部保護カバーＣ₀について説明する。この分岐部保護カバーＣ₀は、図２ないし図５に示されるように、建物の外壁Ｗに貫設された壁貫通孔３の周囲を取り囲むようにして、その外壁面Ｗａに固定される基台Ｖ₀と、該基台Ｖ₀とで冷媒管収容空間Ａ₀(図１３参照）を形成して、これに覆蓋される蓋体Ｌ₀とで構成される。
【００１７】
また、基台Ｖ₀は、底板部１１の幅方向の両端よりも僅かに内側の部分に、高さの低い側板部１２が冷媒管Ｐの配管方向（同一直線上に設置される二本の直状保護カバーＣ₁,Ｃ₂の前記直線方向）Ｑに沿って設けられ、前記底板部１１の配管方向Ｑに沿った両端部には、当該部分に接続される直状保護カバーＣ₁,Ｃ₂に内嵌される位置決め突片１３，１４がそれぞれ形成されて、固定状態おいて上端となる前記位置決め突片１３は、サイズの異なる複数種類の直状保護カバーに内嵌可能なように先細り階段状となっている。即ち、固定状態おいて上端となる位置決め突片１３は、サイズの異なる３種類の直状保護カバーＣ₁〜Ｃ₃の幅方向の位置決めを行って接続可能になっていて、最大サイズの直状保護カバーＣ₁を接続する部分のみの幅方向の両端には、前記側板部１２と同一高さの突片側板部１５が形成されている。また、固定状態において下端となる位置決め突片１４は、その突出長の全長に亘って、その幅方向の両端に突片側板部１６が形成されている。一対の側板部１２の間隔は、一対の突片側板部１５及び一対の突片側板部１６の間隔よりも僅かに広く形成され、各側板部１２の両端の別の突片側板部１５，１６と接続される部分には、これと直交する方向のリブ１７が設けられている。
【００１８】
また、前記各位置決め突片１３，１４は、その基台Ｖ₁,Ｖ₂が外壁面Ｗａに密着した直状保護カバーＣ₁,Ｃ₂に内嵌可能にするために、図５に示されるように、基台Ｖ₀を外壁面Ｗａに取付けた状態において、前記各位置決め突片１３，１４と前記外壁面Ｗａとの間には、所定の空間部１８，１９が形成される。このため、底板部１１の配管方向Ｑに沿った両端と前記各位置決め突片１３，１４との間には、段差が形成されて、前記底板部１１の四隅の前記段差に臨む部分は、前記各位置決め突片１３，１４と同一平面となるように部分的に厚肉に形成されて、該厚肉部２１に、前記配管方向Ｑと直交する方向に長くなった長孔状のビス挿通孔２２が形成されている。
【００１９】
また、基台Ｖ₀を構成する前記底板部１１のうち、左右一対の側板部１２と、上下二対の厚肉部２１で囲まれる部分は、配管方向Ｑに沿って長くなった長方形状に切り欠かれて、管挿通孔２３となっている。また、図４及び図５に示されるように、固定状態で縦長となった前記管挿通孔２３の横長は、外壁Ｗに設けられた前記壁貫通孔３の内径よりも僅かに大きくなっていて、その縦長（配管方向Ｑに沿った長さ）は、前記壁貫通孔３の内径よりも遙に長くなっている。
【００２０】
また、建物の外壁Ｗに設けられた貫通孔３の外壁面Ｗａの側には、冷媒管Ｐによる孔周縁部の欠損防止のために鍔付リング４が嵌め込まれることが多い。これに対応可能にするために、図４に示されるように、前記基台Ｖ₀の裏面側には、前記管挿通孔２３の幅方向（配管方向Ｑと直交する方向）の両側に、該管挿通孔２３と接続する空間部２４がそれぞれ設けられて、外壁面Ｗａに基台Ｖ₀を固定した状態において、その底板部１１と前記鍔付リング４の鍔部４ａとが干渉しない構造にしてある。即ち、基台Ｖ₀の底板部１１の幅方向の両端部であって、各側板部１２の外方に位置する部分は、配管方向Ｑに沿って厚肉に形成されて、該厚肉部２５の裏面側に前記空間部２４が同方向に形成されている。
【００２１】
また、裏面側に空間部２４が設けられた前記各厚肉部２５の長手方向（取付状態で上下方向）の中央部には、高さ方向に向けて係合突起体２６が形成され、その内側に係合段差部２７が設けられている。
【００２２】
次に、図２、図３及び図１２を参照して、前記基台Ｖ₀に覆蓋される蓋体Ｌ₀について説明する。この蓋体Ｌ₀は、断面Ｕ字状をしていて、その両側板部３１の開口側の部分には、基台Ｖ₀の前記厚肉部２５に嵌合可能なように嵌合凹部３２が形成されている。また、両側板部３１の長手方向の中央部には、僅かに内側に膨出した膨出部３３が設けられて、該膨出部３３の外側には、蓋体Ｌ₀の外面に対して凹設された凹部３４が設けられて、該凹部３４に、前記基台Ｖ₀の係合段差部２７に係合される係合爪３５が形成されている。また、蓋体Ｌ₀の長手方向の両端部の内側には、当該部分に後述のソケットカバーＳを嵌合させた場合に、該ソケットカバーＳの外側の嵌合突起５と嵌合する複数の嵌合凹部３６が設けられている。
【００２３】
そして、上記した分岐部保護カバーＣ₀を使用して、サイズの異なる二本の直状保護カバーＣ₁,Ｃ₂を接続すると共に、該接続部において冷媒管Ｐを分岐配線するには、以下のようにして行う。まず、外壁Ｗの二階部分に設けられた壁貫通孔を覆うようにして、前記端末保護カバーＣ₁₁の基台を外壁面Ｗａに固定した後に、予め設計長に切断された直状保護カバーＣ₂の基台Ｖ₂を、前記端末保護カバーＣ₁₁の基台に接続させて、外壁面Ｗａに固定する。その後に、二階の室内機１から引き出された複数本の冷媒管Ｐを前記直状保護カバーＣ₂の基台Ｖ₂に収容して、前記端末保護カバーＣ₁₁の基台に蓋体を覆蓋させる。図６には、この状態の直状保護カバーＣ₂の下端部が示されており、直状保護カバーＣ₂の下端は、外壁Ｗの一階部分に設けられた壁貫通孔３の直上に臨んでいる。なお、図６ないし図９においては、冷媒管Ｐの表示を略してある。
【００２４】
次に、横方向に沿っては、外壁Ｗの一階部分の壁貫通孔３を覆うことができ、しかも縦方向に沿っては、固定済の直状保護カバーＣ₂の基台Ｖ₂と接続可能な位置を選択して、当該位置に、複数本のビス２８を使用して、分岐部保護カバーＣ₀の基台Ｖ₀を固定する。分岐部保護カバーＣ₀の基台Ｖ₀は、図３に示されるように、その裏面側に設けた空間部２４の存在によって、壁貫通孔３の外側の周縁部に嵌め込まれた鍔付リング４の鍔部４ａと干渉することなく、外壁面Ｗａに固定できる。また、図７、図１１及び図１３に示されるように、前記基台Ｖ₀の上端側に形成された先細り階段状の位置決め突片１３の最先端の位置決め部は、直状保護カバーＣ₂の基台Ｖ₂に内嵌されると共に、該基台Ｖ₂を構成する底板部４１の下端部は、前記基台Ｖ₀の底板部１１と外壁面Ｗａとの間に形成された空間部１８に挿入されて、直状保護カバーＣ₂の基台Ｖ₂は、分岐部保護カバーＣ₀の基台Ｖ₀に対して、その幅方向の位置決めが行われる。
【００２５】
ここで、分岐部保護カバーＣ₀を構成する基台Ｖ₀には、配管方向Ｑに沿って長くなった長方形状の管挿通孔２３が形成されているために、図１１に示されるように、外壁Ｗに設けられた壁貫通孔３の中心Ｍ₁と、その上方に設置される直状保護カバーＣ₂の基台Ｖ₂の下端縁との間の距離Ｂ、換言すれば、直状保護カバーＣ₂の切断長は、一定の許容範囲内であれば、分岐部保護カバーＣ₀の部分において、冷媒管Ｐの分岐配管が可能となる。図１１で示される設置例では、壁貫通孔３の中心Ｍ₁と、分岐部保護カバーＣ₀の基台Ｖ₀に設けられた管挿通孔２３の中心Ｍ₂とは、合致している。
【００２６】
次に、図７及び図８に示されるように、外壁面Ｗａに固定された分岐部保護カバーＣ₀の基台Ｖ₀に対して直状保護カバーＣ₁の基台Ｖ₁を、上記直状保護カバーＣ₂と同様にして接続して、外壁面Ｗａに固定する。即ち、図１１及び図１３の各断面図に示されているように、固定済の分岐部保護カバーＣ₀の基台Ｖ₀の下方の位置決め突片１４と外壁面Ｗａとの間に形成された空間部１９に、直状保護カバーＣ₁の基台Ｖ₁を構成する底板部４２を挿入して、前記位置決め突片１４を前記基台Ｖ₁に内嵌させると、分岐部保護カバーＣ₀の基台Ｖ₀に対して直状保護カバーＣ₁の基台Ｖ₁が配管方向Ｑと直交する方向に沿って位置決めされる。その後に、図１１ないし図１３に示されるように、一階の室内機１から引き出された冷媒管Ｐと、二階部分から垂れ下がっている別の冷媒管Ｐとを、分岐部保護カバーＣ₀の基台Ｖ₀の部分で合流配管させて、一階及び二階の各部分の冷媒管Ｐを束ねて、直状保護カバーＣ₁の基台Ｖ₁に収容させる。
【００２７】
そして、図９に示されるように、二階部分の直状保護カバーＣ₂の基台Ｖ₂に蓋体Ｌ₂を覆蓋した後に、一階部分の直状保護カバーＣ₁の基台Ｖ₁に蓋体Ｌ₁を覆蓋し、最後に、分岐部保護カバーＣ₀の基台Ｖ₀に、その蓋体Ｌ₀とソケットカバーＳとを覆蓋させると、前記ソケットカバーＳにより、上下の各直状保護カバーＣ₁,Ｃ₂のサイズ差が吸収されて、図１０に示されるように、冷媒管Ｐの分岐配管部が保護カバーＣ₀で覆われる。
【００２８】
即ち、分岐部保護カバーＣ₀の蓋体Ｌ₀の両側板部３１を内側に弾性変形させた状態で、該蓋体Ｌ₀を基台Ｖ₀に覆蓋させると、蓋体Ｌ₀の嵌合凹部３２に基台Ｖ₀の厚肉部２５が嵌合されると共に、基台Ｖ₀の係合段差部２７と蓋体Ｌ₀の係合爪３５とが係合して、両者Ｖ₀,Ｌ₀が一体となる。また、ソケットカバーＳの外周面に設けられた嵌合突起５と、前記蓋体Ｌ₀の接続部の内周面に設けられた嵌合凹部３６とが互いに嵌合して、前記蓋体Ｌ₀とソケットカバーＳとが一体となる。
【００２９】
これにより、二階から一階に向けてほぼ全ての配管作業を順次行うことができて、配管作業の能率が高められる。また、二階部分の壁貫通孔から冷媒管を引き出して、該二階部分の外壁面Ｗａに設置された直状保護カバーＣ₂の基台Ｖ₂に前記冷媒管を収容した後に、直ちに、該基台Ｖ₂に蓋体Ｌ₂を覆蓋させることも可能であって、これにより、全配管作業を二階から一階に向けて順次行うことが可能となる。
【００３０】
また、図１４には、上記とは別の配管例が示されている。この配管例では、二階部分の外壁面Ｗａに設置される直状保護カバーＣ₃は、前記直状保護カバーＣ₂よりも大きくて、直状保護カバーＣ₁よりも小さなものであって、分岐部保護カバーＣ₀の基台Ｖ₀に設けられた位置決め突片１３の中間の位置決め部に位置決めされる大きさになっている。このため、設置状態において、直状保護カバーＣ₃に対する位置決め突片１３の嵌入長は、前記直状保護カバーＣ₂のそれよりも長くなる。
【００３１】
よって、直状保護カバーＣ₃の切断長が、前記直状保護カバーＣ₂のそれと同一である場合には、外壁Ｗに設けられた壁貫通孔３の中心Ｍ₁と、その上方に設置される直状保護カバーＣ₃の基台Ｖ₃の下端縁との間の距離Ｂは同一となって、分岐部保護カバーＣ₀の基台Ｖ₀は、壁貫通孔３に対して、前記位置決め突片１３の嵌入長が長くなった分だけ、上方に設置されることになる。このような場合でも、前記基台Ｖ₀に設けられた管挿通孔２３は、配管方向Ｑに沿って長くなった長方形状をしているために、壁貫通孔３は、管挿通孔２３内に収まって（壁貫通孔３は、管挿通孔２３を通して全体が壁表に臨んで）、分岐部保護カバーＣ₀の部分において冷媒管Ｐを支障なく分岐配管できる。即ち、直状保護カバーＣ₃と分岐部保護カバーＣ₀との接続部は、直状保護カバーＣ₂と分岐部保護カバーＣ₀との接続部よりも所定長だけ上方にずれているが、いずれの状態でも、壁貫通孔３は管挿通孔２３を通して全体が壁表に臨んでいるため、同一の分岐部保護カバーＣ₀を使用して接続可能となる。
【００３２】
また、分岐部保護カバーＣ₀の基台Ｖ₀の上方に設置される直状保護カバーＣ₁〜Ｃ₃の切断長に多少のばらつきがあっても、許容範囲内〔基台Ｖ₀の管挿通孔２３の長手方向の長さをＥとして、壁貫通孔３の内径をＤとした場合には、（Ｅ−Ｄ）〕であれば、分岐部保護カバーＣ₀の部分における分岐配管が可能となる。このため、配管作業が容易となる。
【００３３】
【発明の効果】
本発明に係る分岐部保護カバーは、基台に形成された管挿通孔が、該管挿通孔から前記壁貫通孔を壁表に臨ませた状態で前記直状保護カバーとの接続位置を前記直線方向に沿って選択可能とすべく、同一直線状に設置される二本の直状保護カバーの前記直線方向（エアコン冷媒管の配管方向）に沿って前記壁貫通孔の内径よりも長く延びる長孔状になっている。このため、直状保護カバーと分岐部保護カバーとの接続位置が、エアコン冷媒管の配管方向に沿った許容範囲内で変更されても、外壁面に設けられた壁貫通孔は、分岐部保護カバーの基台の底板部に形成された管挿通孔を通して全体が壁表に臨ませられるので、接続すべき直状保護カバーの長さに多少の長短があっても、直状保護カバーと分岐部保護カバーとの接続が可能となる。また、基台を外壁面に設置した状態で、前記基台の底板部における前記壁貫通孔の外壁面側に嵌め込まれる鍔付リングの鍔部が配置される部分には、前記鍔部との干渉を回避すべく欠落されて、前記管挿通孔に接続する空間部が直線方向に沿って形成されているために、壁貫通孔の外壁面側に嵌め込まれる鍔付リングの鍔部との干渉を回避して建物の外壁面に分岐部保護カバーの基台を設置できる。
【００３４】
このため、分岐部保護カバーよりも上階の直状保護カバーの基台を固定した後に、該分岐部保護カバーの基台を固定することが可能となって、上階から下階に分けて全ての配管作業を順次行うことができて、配管作業の能率が高まる。
【００３５】
本発明に係る分岐部保護カバー装置によれば、壁貫通孔の外壁面側に嵌め込まれる鍔付リングの鍔部との干渉を回避して建物の外壁面に基台を設置できる。
【図面の簡単な説明】
【図１】本発明に係る分岐部保護カバーＣ₀を用いてサイズの異なる二本の直状保護カバーＣ₁,Ｃ₂を接続した状態の斜視図である。
【図２】分岐部保護カバーＣ₀を構成する基台Ｖ₀と蓋体Ｌ₀とを表面側から見た分解斜視図である。
【図３】同じく裏面側から見た分解斜視図である。
【図４】基台Ｖ₀の横断面図である。
【図５】同じく中央縦断面図である。
【図６】一階部分の壁貫通孔３より上方の直状保護カバーＣ₂の基台Ｖ₂を外壁面Ｗａに設置した状態の斜視図である。
【図７】一階部分の壁貫通孔３よりも上方に設置された直状保護カバーＣ₂の基台Ｖ₂に対して分岐部保護カバーＣ₀の基台Ｖ₀を接続して設置した状態の斜視図である。
【図８】一階部分の壁貫通孔３の部分に設置された分岐部保護カバーＣ₀の基台Ｖ₀の下方に、一階部分の直状保護カバーＣ₁の基台Ｖ₁を接続して設置した状態の斜視図である。
【図９】一階及び二階の各部分の直状保護カバーＣ₁,Ｃ₂の基台Ｖ₁,Ｖ₂に蓋体Ｌ₁,Ｌ₂を覆蓋された状態の斜視図である。
【図１０】一階及び二階の各部分の直状保護カバーＣ₁,Ｃ₂を分岐部接続カバーＣ₀及びソケットカバーＳによって接続した状態の斜視図である。
【図１１】同様の状態の平面断面図（図１２のＸ−Ｘ線断面図）である。
【図１２】同様の状態の横断面図である。
【図１３】同様の状態の中央縦断面図である。
【図１４】別の配管例の中央縦断面図である。
【符号の説明】
Ｃ₀：分岐部保護カバー
Ｃ₁〜Ｃ₃：直状保護カバー
Ｌ₀：分岐部保護カバーの蓋体
Ｐ：エアコン冷媒管
Ｑ：配管方向（二本の直状保護カバーＣ₁,Ｃ₂が同一直線上に設置される直線方向）
Ｓ：ソケットカバー
Ｖ₀：分岐部保護カバーの基台
Ｗ：外壁
Ｗａ：外壁面
３：壁貫通孔
４：鍔付リング
４ａ：鍔付リングの鍔部
１１：底板部
１３，１４：位置決め突片
１８，１９：位置決め突片と外壁面との空間部
２３：管挿通孔
２４：空間部
３６：ソケットカバーの嵌合凹部（取付部）[0001]
BACKGROUND OF THE INVENTION
  The present invention relates to an air conditioner refrigerant in which two straight protective covers that are linearly attached along a wall surface of a building are connected and a part of an air conditioner refrigerant pipe accommodated and protected in the cover is branched and piped inside the wall. The present invention relates to a branching part protective cover for a pipe and a branching part protective cover device.
[0002]
[Prior art]
  For example, the above-described branch protection cover is provided by piping an air-conditioner refrigerant pipe (hereinafter also simply referred to as “refrigerant pipe”) between the first floor and the second floor of a building. Used when a part of the pipe is branched inside the wall. As a conventional protective cover for a branch portion, one disclosed in Japanese Utility Model Laid-Open No. 5-40695 is known.
[0003]
  The bifurcation protective cover disclosed in the above publication is composed of a base and a lid, and provided with connecting portions capable of connecting the ends of the straight protective cover at both ends, thereby connecting the straight protective covers to each other. In addition, a pipe insertion hole is provided in the base, and a refrigerant pipe can be drawn into the inside through the pipe insertion hole, and each refrigerant pipe of an air conditioner installed in each of the upper and lower rooms, Each refrigerant pipe is drawn out from a wall through-hole formed in each room and can be accommodated in a straight protective cover installed on the same straight line of the outer wall surface of the building.
[0004]
  However, in the conventional bifurcation protective cover, the tube insertion hole formed in the base has substantially the same size and shape as the wall through hole formed in the wall (in many cases, the same inner diameter Therefore, when installing the protective cover for the branch part on the outer wall surface, the position of the pipe insertion hole and the wall through hole must be aligned, and the alignment is very troublesome. there were.
[0005]
  For the above alignment, first, fixing the base of the terminal protective cover that covers the wall through hole formed on the upper floor, and the base of the branch protective cover that covers the wall through hole formed on the lower floor After fixing, measure the length between the base of the terminal and the protective cover of the branch part attached to the wall of each floor above and below, and cut the straight protective cover according to this length We had to prepare and this length adjustment work was very troublesome. Also, when installing each protective cover, the upper and lower rooms had to be moved several times, and the workability was very poor.
[0006]
[Problems to be solved by the invention]
  An object of the present invention is to provide a branch part protective cover for an air conditioner refrigerant pipe that can be installed without performing accurate alignment between the wall through hole and its own tube insertion hole, and a hook fitted on the outer wall surface side of the wall through hole. Provided is a branch protective cover device that can be disposed avoiding interference with the flange of the attached ring.
[0007]
[Means for Solving the Problems]
  In order to solve this problem, the invention of claim 1 comprises a base and a lid, which are connected by connecting two straight protective covers installed on the same straight line of the outer wall surface of the building. A branch part protective cover for branching and piping a part of an air-conditioner refrigerant pipe accommodated and protected inside the wall, wherein the base plate is in contact with the outer wall surface in which a wall through hole is formed A tube insertion hole through which the air conditioner refrigerant pipe drawn out from the wall through hole can be inserted, and the tube insertion hole faces the wall through hole from the tube insertion hole to the wall surface In order to be able to select the connection position with the straight protective cover along the linear direction, it is in the shape of a long hole extending longer than the inner diameter of the wall through hole along the linear direction,In the state where the base is installed on the outer wall surface, the portion of the bottom plate portion of the base where the flange portion of the flanged ring that is fitted to the outer wall surface side of the wall through-hole is disposed is an interference with the flange portion. The space portion connected to the tube insertion hole is formed along the linear direction.It is characterized by.
[0008]
  According to the first aspect of the present invention, the pipe insertion hole formed in the base is formed along the straight direction of the two straight protective covers installed on the same straight line of the outer wall surface of the building. Since it is in the shape of a long hole extending longer than the inner diameter, when installing the branch protection cover on the outer wall surface, the straight direction of the tube insertion hole with respect to the wall through hole formed in the outer wall surface (air conditioner refrigerant) The position along the piping direction of the pipe), that is, the position along the linear direction of the base has a predetermined tolerance, so that the wall through-holes can be obtained without accurately aligning the center positions of both holes. In contrast, the air conditioner refrigerant pipe can be pulled out or pulled in. For this reason, the length of the straight protective cover attached between the upper floor and the lower floor also has a predetermined allowable range, and the cut length of the straight protective cover is slightly larger than the set length. Even if the length is short or short, it is possible to connect the straight protective cover and the branch protective cover. That is, even if the connection position between the straight protection cover and the branch protection cover is changed within the allowable range, the wall through hole provided in the outer wall surface is formed in the bottom plate portion of the base of the branch protection cover. Since the entire surface is exposed to the wall surface through the pipe insertion hole, it is possible to connect the straight protection cover and the branch protection cover. Therefore, after fixing the base of the straight protective cover on the upper floor than the branch protective cover, it becomes possible to fix the base of the branch protective cover, and all from the upper floor to the lower floor The piping work can be performed sequentially, and the efficiency of the piping work is increased.Furthermore, in a state where the base is installed on the outer wall surface, a portion of the bottom plate portion of the base where the flange portion of the flanged ring that is fitted to the outer wall surface side of the wall through-hole is disposed, Interference with the flange portion of the brazed ring fitted on the outer wall surface side of the wall through-hole because the space portion that is missing to avoid interference and is formed along the straight line direction to connect to the tube insertion hole Can be installed on the outer wall of the building.
[0009]
  According to a second aspect of the present invention, in the first aspect of the present invention, a positioning protrusion that is fitted into the straight protective cover is formed at an end portion of the base along the linear direction, and is formed on the wall surface. In the installed state, a space portion into which the base of the straight protective cover can be inserted is formed between the wall surface and the positioning projection piece. According to the invention of claim 2, after fixing the base of the straight protective cover above the branch portion protective cover to the outer wall surface, the positioning protrusion formed on the base of the branch portion protective cover is fixed. It can be fitted into the base of the straight protective cover in the state. Therefore, the post-installation (retrofitting) work of the branch part protective cover can be further facilitated, and the straight protective cover is positioned along the direction perpendicular to the piping direction with respect to the branch part protective cover by the positioning protrusion. Thus, the lateral protection of both the straight and branching protective covers can be prevented and the two protective covers can be securely connected.
[0010]
  According to a third aspect of the present invention, in the second aspect of the present invention, the positioning protrusion is formed at both end portions along the piping direction of the air conditioner refrigerant pipe in the base, at least one of which is a direct In order to be able to correspond to the shape protective cover, it is formed in a tapered step shape along the piping direction, and the connecting portion of the lid has a mounting portion to which a socket cover that absorbs the size difference of the straight protective cover can be attached. It is characterized by being formed. According to the invention of claim 3, it is possible to connect a plurality of straight protective covers having different sizes to the branch portion protective cover by positioning in a direction orthogonal to the piping direction. Further, when connecting the branch protection cover and the straight protection cover, positioning is performed in a direction perpendicular to the piping direction by a tapered stepped positioning protrusion formed on the branch protection cover. When different straight protective covers are connected, the position of the connection end (lower end) may differ along the piping direction depending on the respective straight protective covers. However, since the tube insertion hole formed in the base of the branch protection cover extends along the piping direction, the position along the piping direction of the connection end (lower end) of each of the linear protective covers of different sizes The deviation is absorbed by the pipe insertion hole, and the air conditioner refrigerant pipe is connected to the pipe insertion hole of the base of the branch protection cover in a state where the straight protective cover and the branch protection cover of different sizes are connected. Insertion piping is possible.
[0011]
[0012]
  According to a fourth aspect of the present invention, there is provided the protective cover for the branch portion according to the first aspect and the outer wall surface of the wall through hole formed in the outer wall surface in order to pull out the air conditioner refrigerant pipe from the indoor side. Bifurcation protective cover device comprising a ringIt is characterized by consisting of.Claim4The invention of claim1The invention from a different point of view, and claims1The same effect as that of the present invention is exhibited.
[0013]
DETAILED DESCRIPTION OF THE INVENTION
  Hereinafter, the present invention will be described in more detail with reference to examples. FIG. 1 shows a branch protective cover C according to the present invention.₀Two straight protective covers C of different sizes using₁, C₂FIG. 2 is a perspective view of a state in which the branch portion protective cover C is connected.₀Base V that constitutes₀And lid L₀3 is an exploded perspective view seen from the front side, FIG. 3 is an exploded perspective view seen from the back side, and FIG.₀FIG. 5 is a vertical sectional view of the same.
[0014]
  As shown in FIG. 1, an indoor unit 1 of an air conditioner is attached to the indoor side of the first floor and the second floor of the building, respectively, and the outdoor unit 2 of the air conditioner is close to the outer wall surface Wa of the building outdoors. is set up. Further, on the outer wall surface Wa of the building, each of the two large and small straight protective covers C having different refrigerant pipe accommodating spaces.₁, C₂Is installed in a straight line, and the lower straight protective cover C₁Upper end and upper straight protective cover C₂The lower end of the bifurcation protection cover C₀Connected to each other, and each straight protective cover C₁, C₂A predetermined number of refrigerant pipes P are accommodated in the pipes. Large straight protective cover C installed on the first floor of the building₁Contains a refrigerant pipe P connected to each of the two indoor units 1, and has a small straight protective cover C attached to the second floor of the building.₂Accommodates half of the refrigerant tubes P connected only to the indoor unit 1 on the second floor.
[0015]
  Further, as shown in FIG. 9, each of the straight protective covers C₁, C₂Is a base V fixed in close contact with the outer wall surface Wa of the building via a screw (not shown).₁, V₂And the base V₁, V₂The lid L that is covered with a fitting state₁, L₂And the space formed by the two is the refrigerant pipe housing space A.₁, A₂(See FIG. 13). In FIG. 1, C₁₁These show the terminal protective cover which covers and protects the refrigerant | coolant pipe | tube P withdraw | derived outside from the indoor unit 1 part of the second floor.
[0016]
  Next, two straight protective covers C of different sizes₁, C₂, And a branching part protective cover C for enabling the branching of the refrigerant pipe P accommodated therein₀Will be described. This branch protection cover C₀As shown in FIGS. 2 to 5, the base V is fixed to the outer wall Wa so as to surround the wall through hole 3 penetrating the outer wall W of the building.₀And the base V₀And refrigerant pipe storage space A₀(See FIG. 13), and a lid L that is covered by this₀It consists of.
[0017]
  In addition, base V₀The side plate portion 12 having a low height is disposed on the inner side of both ends in the width direction of the bottom plate portion 11 in the piping direction of the refrigerant pipe P (two straight protective covers C installed on the same straight line).₁, C₂The straight protective cover C is provided along the straight line direction Q of the bottom plate 11 and is connected to both ends of the bottom plate 11 along the piping direction Q.₁, C₂The positioning protrusions 13 and 14 are respectively formed in the tape, and the positioning protrusion 13 serving as the upper end in the fixed state is tapered so that it can be fitted in a plurality of types of straight protective covers having different sizes. It has become a shape. That is, the positioning protrusion 13 which is the upper end in the fixed state has three types of straight protective covers C of different sizes.₁~ C_ThreeCan be connected by positioning in the width direction, and the maximum size straight protective cover C₁At both ends in the width direction of only the portion connecting the two, a protruding piece side plate portion 15 having the same height as the side plate portion 12 is formed. Further, the positioning projecting piece 14 serving as the lower end in the fixed state has projecting piece side plate portions 16 formed at both ends in the width direction over the entire length of the projecting length. The distance between the pair of side plate portions 12 is slightly wider than the distance between the pair of protruding piece side plate portions 15 and the pair of protruding piece side plate portions 16, and the other protruding piece side plate portions 15, 16 at both ends of each side plate portion 12. A rib 17 in a direction orthogonal to the rib 17 is provided at a portion connected to.
[0018]
  The positioning protrusions 13 and 14 have their bases V₁, V₂Protective cover C in close contact with outer wall surface Wa₁, C₂As shown in FIG.₀Are attached to the outer wall surface Wa, predetermined space portions 18 and 19 are formed between the positioning protrusions 13 and 14 and the outer wall surface Wa. Therefore, a step is formed between both ends of the bottom plate portion 11 along the piping direction Q and the positioning protrusions 13 and 14, and the portions facing the steps at the four corners of the bottom plate portion 11 are A long hole-like screw insertion hole which is formed to be partially thick so as to be flush with the positioning protrusions 13 and 14 and is long in the direction perpendicular to the piping direction Q. 22 is formed.
[0019]
  In addition, base V₀The portion surrounded by the pair of left and right side plate portions 12 and the two upper and lower thick wall portions 21 is cut out into a rectangular shape that is elongated along the piping direction Q. An insertion hole 23 is formed. As shown in FIGS. 4 and 5, the horizontal length of the tube insertion hole 23 that is vertically long in the fixed state is slightly larger than the inner diameter of the wall through hole 3 provided in the outer wall W. The longitudinal length (the length along the piping direction Q) is much longer than the inner diameter of the wall through-hole 3.
[0020]
  Further, a brazing ring 4 is often fitted on the side of the outer wall surface Wa of the through hole 3 provided in the outer wall W of the building in order to prevent the peripheral edge of the hole due to the refrigerant pipe P from being lost. In order to cope with this, as shown in FIG.₀On the back surface side, space portions 24 connected to the pipe insertion holes 23 are provided on both sides in the width direction (direction perpendicular to the piping direction Q) of the pipe insertion holes 23, respectively. V₀The bottom plate portion 11 and the flange portion 4a of the flanged ring 4 do not interfere with each other in a fixed state. That is, base V₀Of the bottom plate portion 11 in the width direction, the portions located outside the side plate portions 12 are formed thick along the piping direction Q, and are formed on the back side of the thick portion 25. The space part 24 is formed in the same direction.
[0021]
  In addition, an engaging protrusion 26 is formed in the center in the longitudinal direction (vertical direction in the attached state) of each thick portion 25 provided with the space portion 24 on the back side, An engagement step portion 27 is provided on the inner side.
[0022]
  Next, referring to FIG. 2, FIG. 3 and FIG.₀Cover body L covered with₀Will be described. This lid L₀Has a U-shaped cross section, and the base V₀A fitting recess 32 is formed so as to be fitted to the thick part 25. In addition, a bulging portion 33 that slightly bulges inward is provided at the central portion in the longitudinal direction of both side plate portions 31, and a lid L is provided outside the bulging portion 33.₀A recess 34 is provided to be recessed with respect to the outer surface of the base V.₀An engaging claw 35 to be engaged with the engaging stepped portion 27 is formed. The lid L₀A plurality of fitting recesses 36 for fitting with the fitting protrusions 5 on the outer side of the socket cover S when a socket cover S to be described later is fitted to the portion are provided inside both ends in the longitudinal direction. It has been.
[0023]
  And the above-mentioned branch part protective cover C₀Using two straight protective covers C of different sizes₁, C₂And branching wiring of the refrigerant pipe P at the connecting portion is performed as follows. First, the terminal protective cover C is formed so as to cover the wall through hole provided in the second floor portion of the outer wall W.₁₁A straight protective cover C which has been previously cut to a design length after fixing the base of the base to the outer wall surface Wa₂Base V₂The terminal protective cover C₁₁Are fixed to the outer wall surface Wa. Thereafter, a plurality of refrigerant pipes P drawn from the indoor unit 1 on the second floor are connected to the straight protective cover C₂Base V₂In the terminal protective cover C₁₁Cover the lid on the base. FIG. 6 shows a straight protective cover C in this state.₂The lower end of the straight protective cover C is shown₂The lower end of the wall faces directly above the wall through-hole 3 provided in the first floor portion of the outer wall W. In addition, in FIG. 6 thru | or FIG. 9, the display of the refrigerant pipe P is abbreviate | omitted.
[0024]
  Next, along the horizontal direction, the wall through hole 3 of the first floor portion of the outer wall W can be covered, and in addition, the fixed straight protective cover C can be fixed along the vertical direction.₂Base V₂Select a position that can be connected to the cable, and use a plurality of screws 28 at that position,₀Base V₀To fix. Branch protection cover C₀Base V₀As shown in FIG. 3, the presence of the space portion 24 provided on the back surface side does not interfere with the flange portion 4 a of the flanged ring 4 fitted into the outer peripheral edge portion of the wall through hole 3. It can be fixed to the outer wall surface Wa. Further, as shown in FIGS. 7, 11 and 13, the base V₀The leading edge positioning portion of the tapered stepped positioning protrusion 13 formed on the upper end side of the straight protective cover C₂Base V₂And the base V₂The lower end of the bottom plate 41 constituting the base V₀The straight protective cover C is inserted into a space 18 formed between the bottom plate portion 11 and the outer wall surface Wa.₂Base V₂Is the protective cover C₀Base V₀On the other hand, positioning in the width direction is performed.
[0025]
  Here, the branch protection cover C₀Base V that constitutes₀11 is formed with a rectangular pipe insertion hole 23 that is elongated along the piping direction Q. Therefore, as shown in FIG. 11, the center M of the wall through hole 3 provided in the outer wall W is formed.₁And a straight protective cover C installed above₂Base V₂Distance B from the lower edge of the cover, in other words, the straight protective cover C₂If the cutting length is within a certain allowable range, the protective cover C for the branching portion₀In this portion, the branch pipe of the refrigerant pipe P is possible. In the installation example shown in FIG. 11, the center M of the wall through hole 3.₁And branch protection cover C₀Base V₀The center M of the tube insertion hole 23 provided in₂Is in agreement.
[0026]
  Next, as shown in FIG. 7 and FIG. 8, the branch protective cover C fixed to the outer wall surface Wa.₀Base V₀Direct protective cover C against₁Base V₁The above-mentioned straight protective cover C₂The connection is made in the same manner as described above and fixed to the outer wall surface Wa. That is, as shown in each of the cross-sectional views of FIGS.₀Base V₀In the space 19 formed between the positioning projection piece 14 and the outer wall surface Wa below the straight protective cover C₁Base V₁The positioning plate 14 is inserted into the base V.₁When it is fitted inside, the branch protection cover C₀Base V₀Direct protective cover C against₁Base V₁Is positioned along a direction orthogonal to the piping direction Q. Thereafter, as shown in FIG. 11 to FIG. 13, the refrigerant pipe P drawn from the indoor unit 1 on the first floor and another refrigerant pipe P hanging from the second floor portion are connected to the branch portion protective cover C.₀Base V₀, And join the refrigerant pipes P of each part of the first floor and the second floor,₁Base V₁To accommodate.
[0027]
  And as shown in FIG. 9, the straight protective cover C on the second floor part₂Base V₂Lid L₂After covering the cover, the straight protective cover C on the first floor₁Base V₁Lid L₁Finally, branch protection cover C₀Base V₀And the lid L₀And the socket cover S are covered, the upper and lower straight protective covers C are formed by the socket cover S.₁, C₂As shown in FIG. 10, the branch pipe portion of the refrigerant pipe P is protected by a protective cover C.₀Covered with.
[0028]
  That is, the branch protective cover C₀Lid L₀In the state in which the both side plate portions 31 are elastically deformed inward, the lid L₀Base V₀When covered with lid L₀The base V in the fitting recess 32 of₀The thick part 25 is fitted and the base V₀Engagement step 27 and lid L₀The engaging claws 35 are engaged, and both V₀, L₀Are united. Further, the fitting protrusion 5 provided on the outer peripheral surface of the socket cover S and the lid body L₀And the fitting recess 36 provided on the inner peripheral surface of the connecting portion of the connecting portion are fitted to each other, and the lid L₀And the socket cover S are integrated.
[0029]
  Thereby, almost all piping work can be performed sequentially from the second floor to the first floor, and the efficiency of the piping work is improved. In addition, the refrigerant pipe is drawn out from the wall through hole in the second floor portion, and the straight protective cover C installed on the outer wall surface Wa of the second floor portion.₂Base V₂Immediately after the refrigerant pipe is accommodated in the base V₂Lid L₂It is also possible to cover the pipe, which makes it possible to sequentially perform all piping work from the second floor to the first floor.
[0030]
  FIG. 14 shows another piping example different from the above. In this piping example, a straight protective cover C installed on the outer wall surface Wa of the second floor part._ThreeIs the straight protective cover C₂Larger, straight protective cover C₁Smaller than the protective cover C for the bifurcation₀Base V₀It is sized to be positioned by an intermediate positioning portion of the positioning protrusion 13 provided on the surface. For this reason, in the installed state, the straight protective cover C_ThreeThe insertion length of the positioning protrusion 13 with respect to the straight protective cover C₂Longer than that.
[0031]
  Therefore, straight protective cover C_ThreeThe cutting length of the straight protective cover C₂The center M of the wall through-hole 3 provided in the outer wall W.₁And a straight protective cover C installed above_ThreeBase V_ThreeThe distance B between the lower edge of each of the two is the same, and the protective cover C for the branching portion₀Base V₀Is installed above the wall through-hole 3 by an amount corresponding to the increased insertion length of the positioning protrusion 13. Even in such a case, the base V₀Since the tube insertion hole 23 provided in the pipe has a rectangular shape elongated along the piping direction Q, the wall through hole 3 is accommodated in the tube insertion hole 23 (the wall through hole 3 is a tube The whole face faces the wall through the insertion hole 23), and the bifurcation protective cover C₀In this portion, the refrigerant pipe P can be branched without any trouble. That is, straight protective cover C_ThreeAnd branch protection cover C₀The connection part with the straight protective cover C₂And branch protection cover C₀The wall through-hole 3 faces the wall surface through the tube insertion hole 23 in any state, so that the same branch portion protective cover C can be used.₀Can be connected using.
[0032]
  In addition, branch protection cover C₀Base V₀Straight protective cover C installed above₁~ C_ThreeEven if there is some variation in the cutting length of the₀If the length in the longitudinal direction of the tube insertion hole 23 is E and the inner diameter of the wall through-hole 3 is D, (ED)], the branch protective cover C₀Branch piping in this part is possible. For this reason, piping work becomes easy.
[0033]
【The invention's effect】
  The branch part protective cover according to the present invention is such that the pipe insertion hole formed in the base has the connection position with the straight protective cover in a state where the wall through hole faces the wall surface from the pipe insertion hole. To be selectable along the linear direction, the two straight protective covers installed in the same straight line extend longer than the inner diameter of the wall through-hole along the linear direction (pipe direction of the air conditioner refrigerant pipe). It has a long hole shape. For this reason, even if the connection position between the straight protection cover and the branch protection cover is changed within the allowable range along the piping direction of the air conditioner refrigerant pipe, the wall through-hole provided in the outer wall surface is protected by the branch protection. Since the entire surface is exposed to the wall surface through the tube insertion hole formed in the bottom plate of the cover base, even if the length of the straight protective cover to be connected is slightly long or short, it branches off from the straight protective cover Can be connected to the protective cover.In addition, in a state where the base is installed on the outer wall surface, a portion of the bottom plate portion of the base where the flange portion of the flanged ring that is fitted to the outer wall surface side of the wall through-hole is disposed, Interference with the flange portion of the brazed ring fitted on the outer wall surface side of the wall through-hole because the space portion that is missing to avoid interference and is formed along the straight line direction to connect to the tube insertion hole Can be installed on the outer wall of the building.
[0034]
  For this reason, after fixing the base of the straight protective cover on the upper floor than the branch protective cover, it is possible to fix the base of the branch protective cover, dividing it from the upper floor to the lower floor All piping work can be performed sequentially, and the efficiency of the piping work increases.
[0035]
  According to the branch part protective cover device according to the present invention, the base can be installed on the outer wall surface of the building while avoiding interference with the flange portion of the flanged ring fitted on the outer wall surface side of the wall through hole.
[Brief description of the drawings]
FIG. 1 is a branch cover protective cover C according to the present invention.₀Two straight protective covers C of different sizes using₁, C₂It is a perspective view of the state which connected.
[Fig.2] Branch protection cover C₀Base V that constitutes₀And lid L₀It is the disassembled perspective view which looked at from the surface side.
FIG. 3 is an exploded perspective view similarly viewed from the back side.
[Figure 4] Base V₀FIG.
FIG. 5 is also a central longitudinal sectional view.
FIG. 6 shows a straight protective cover C above the wall through hole 3 on the first floor.₂Base V₂It is a perspective view of the state which installed in the outer wall surface Wa.
FIG. 7 shows a straight protective cover C installed above the wall through hole 3 on the first floor.₂Base V₂Branch protection cover C against₀Base V₀It is a perspective view of the state installed by connecting.
FIG. 8: Protective cover C for the branch part installed in the wall through hole 3 on the first floor₀Base V₀A straight protective cover C on the first floor below₁Base V₁It is a perspective view of the state installed by connecting.
[Fig. 9] Straight protective cover C for each part of the first and second floor₁, C₂Base V₁, V₂Lid L₁, L₂It is a perspective view in the state where it was covered.
[Fig. 10] Straight protective cover C for each part of the first and second floors₁, C₂Branch connection cover C₀FIG. 6 is a perspective view showing a state in which the socket cover S is connected.
11 is a plan sectional view in the same state (sectional view taken along line XX in FIG. 12).
FIG. 12 is a cross-sectional view of the same state.
FIG. 13 is a central longitudinal sectional view of the same state.
FIG. 14 is a central longitudinal sectional view of another piping example.
[Explanation of symbols]
              C₀: Branch protection cover
        C₁~ C_Three: Straight protective cover
              L₀： Cover for protective cover of branch
                P: Air conditioner refrigerant pipe
                Q: Piping direction (two straight protective covers C₁, C₂Is a straight line direction that is installed on the same straight line)
                S: Socket cover
              V₀: Base of branch protection cover
                W: Exterior wall
              Wa: Exterior wall surface
                3: Wall through-hole
                4: Ring with hook
              4a: The collar part of the flanged ring
              11: Bottom plate
        13, 14: Positioning protrusion
        18, 19: Space between positioning protrusion and outer wall surface
              23: Pipe insertion hole
              24: Space
              36: Socket cover fitting recess (mounting part)

Claims

It consists of a base and a lid,
A bifurcation protective cover that connects two straight protective covers installed on the same straight line of the outer wall surface of a building and branches a part of the air-conditioner refrigerant pipe accommodated and protected in the cover to the inside of the wall. There,
The base is formed with a tube insertion hole that allows an air conditioner refrigerant tube drawn out from the wall through hole to be inserted into a bottom plate portion that is in contact with the outer wall surface where the wall through hole is formed,
The pipe insertion hole is arranged in the linear direction so that a connection position with the straight protective cover can be selected along the linear direction with the wall through hole facing the wall surface from the pipe insertion hole. It is in the shape of a long hole extending longer than the inner diameter of the wall through hole,
In a state in which the base is installed on the outer wall surface, a portion of the bottom plate portion of the base where the flange portion of the flanged ring that is fitted to the outer wall surface side of the wall through hole is disposed is an interference with the flange portion. The space portion connected to the tube insertion hole is formed along a linear direction so as to be avoided, and a branch portion protective cover for an air conditioner refrigerant tube.

A positioning protrusion that is fitted into the straight protective cover is formed at an end portion along the linear direction of the base, and in a state of being attached to the outer wall surface, the outer wall surface and the positioning protrusion The space part into which the base of the said linear protective cover can be inserted is formed between them, The branch part protective cover of the air-conditioner refrigerant pipe of Claim 1 characterized by the above-mentioned.

The positioning protrusions are formed at both ends of the base along the piping direction of the air-conditioner refrigerant pipe, and at least one of them is tapered along the piping direction so as to be compatible with a plurality of sizes of straight protective covers. The air conditioner according to claim 2, wherein the air conditioner according to claim 2, wherein the air conditioner is formed in a step shape, and an attachment portion to which a socket cover for absorbing a size difference of the straight protective cover can be attached is formed at the connection portion of the lid. Protective cover for the branch of the refrigerant pipe.

A branch protective cover according to claim 1;
A branch part protective cover device comprising: a brazing ring fitted into an outer wall surface side of a wall through-hole formed in the outer wall surface in order to pull out an air conditioner refrigerant pipe from the indoor side.