JP4095148B2 - Connection method of simple shape end pipe - Google Patents

Description

【００３２】
【表２】

【００３３】
図６は可撓弾性ソケット２の第２参考例の構成を示す。図６では可撓弾性ソケット２の嵌合溝２ａに対向する内側面にはＡ形管１の端部１ａ方向に斜行したひだ部２ｅが設けられている。このひだ部２ｅは可撓弾性ソケット２の本体内面２ｆと略面一に形成されている。
【００３４】
このひだ部２ｅを設けた場合には、図２に示す前記三角形状の凹凸部２ｄに比べて可撓弾性ソケット２の弾力性能及びＡ形管１に対する係止性能を向上することが出来るので好ましい。他の構成は前記第１参考例と同様に構成され、同様な効果を得ることが出来る。
【００３５】
図７及び図８はＡ形管１と可撓弾性ソケット２との係止性能を更に向上させた第３、第４参考例の構成を示すものであり、可撓弾性ソケット２の嵌合溝２ａに対向する内側面に形成された三角形状の凹凸部２ｄが可撓弾性ソケット２の本体内面２ｆよりも突出して形成されている。
【００３６】
一方、図７に示す第３参考例では前記突出した凹凸部２ｄの内側端部２ｇに対向してＡ形管１の端部外周表面に凸部１ｂを形成したものであり、図８に示す第４参考例では前記突出した凹凸部２ｄの幅寸法に対応してＡ形管１の外周表面に凹部１ｃを穿設したものである。
【００３７】
前記凸部１ｂ及び凹部１ｃはＡ形管１の成型時に予め形成出来るように型枠を設計しておけば良く、工場等で比較的容易に量産することが出来る。
【００３８】
上記構成によれば、図７に示す第３参考例では可撓弾性ソケット２の凹凸部２ｄの内側端部２ｇとＡ形管１の凸部１ｂとが当接して係止されるためＡ形管１と可撓弾性ソケット２との係止性能が向上し、図８に示す第４参考例では可撓弾性ソケット２の凹凸部２ｄがＡ形管１の凹部１ｃに嵌入して係止されるためＡ形管１と可撓弾性ソケット２との係止性能が更に向上する。他の構成は前記各参考例と同様に構成され、同様な効果を得ることが出来る。
【００３９】
図９及び図10に示す第５参考例でも可撓弾性ソケット２の嵌合溝２ａに対向する内側面に形成された三角形状の凹凸部２ｄが可撓弾性ソケット２の本体内面２ｆよりも突出して形成されており、一方、突出した凹凸部２ｄの内側端部２ｇに対向してＡ形管１の端部外周表面に凸部１ｂが形成されている。
【００４０】
前記凸部１ｂは前述と同様にＡ形管１の成型時に予め形成出来るように型枠を設計しておけば良く、工場等で容易に量産することが出来る。
【００４１】
上記構成によれば、図10に示すように、可撓弾性ソケット２の凹凸部２ｄの内側端部２ｇとＡ形管１の凸部１ｂとが当接して係止されるためＡ形管１と可撓弾性ソケット２との係止性能が向上する。
【００４２】
可撓弾性ソケット２の両端部外側には詳しくは後述する第１、第２の締め付けバンド３，５の幅寸法に対応する長さの嵌合溝２ａが突起２ｂ，２ｃにより形成されており、該嵌合溝２ａに対向する内側面には前述した三角形状の凹凸部２ｄが形成されている。
【００４３】
この凹凸部２ｄを設けたことにより第１、第２の締め付けバンド３，５により締め付けられる可撓弾性ソケット２の弾力性能を確保すると共に該可撓弾性ソケット２とＡ形管１との固定性能を確保し、更に隣設するＡ形管１の水密性能を確保することが出来るようになっている。
【００４４】
そして、隣設されたＡ形管１の夫々の端部外周に装着された可撓弾性ソケット２の外側からステンレス板等で構成された第１、第２の締め付けバンド３，５を該可撓弾性ソケット２の嵌合溝２ａに夫々沿わせて巻回して嵌合させ、第１の締め付けバンド３を締め付けて図３及び図４に示す第１の締め付けバンド３の一端部に設けた爪部３ａと該第１の締め付けバンド３の他端部に設けた係合部３ｂとを係合して係止すると共に、第２の締め付けバンド５を図11に示す該第２の締め付けバンド５の一端部に設けたネジ溝部５ａと他端部に設けたボルトネジ５ｂとを螺合締着して係止することにより隣設されるＡ形管１と可撓弾性ソケット２とを一体的に締め付けて固定して隣設するＡ形管１を接続することが出来る。
【００４５】
第１の締め付けバンド３の一端部に設けた爪部３ａと該第１の締め付けバンド３の他端部に設けた係合部３ｂとを係合して係止する際には、前述した図５に示すような油圧ジャッキ５が使用される。
【００４６】
また、第２の締め付けバンド５の一端部に設けたネジ溝部５ａと他端部に設けたボルトネジ５ｂとを螺合締着して係止する場合には、図11に示すボルトネジ５ｂが回転自在に保持されるホルダー５ｃ内にネジ溝部５ａ側の端部を挿入してボルトネジ５ｂのネジ山にネジ溝部５ａを螺合させてボルトネジ５ｂを図示しないトルクレンチやドライバー等の工具により締め付ける。
【００４７】
本参考例では、図10に示すように、外周端部に凸部１ｂが設けられていない側のＡ形管１の端部の外周形状が平坦形状であるため可撓弾性ソケット２の片側をスライドさせることが容易に出来るため図13及び図14に示して後述するように互いに隣設するＡ形管１を屈曲させて配置することが容易に出来る。
【００４８】
また、施工に当たっては、予め工場等で、隣設される一方のＡ形管１の端部外周に可撓弾性ソケット２の一部を装着し、該可撓弾性ソケット２の外側から油圧ジャッキ５等の工具を使用する必要がある第１の締め付けバンド３を巻回して該第１の締め付けバンド３の一端部に設けた爪部３ａと他端部に設けた係合部３ｂとを係合して係止して固定した状態で現場に輸送し、現場において該一方のＡ形管１に隣設して他方のＡ形管１を配置した後、該他方のＡ形管１の端部外周に前記可撓弾性ソケット２の残りの一部を装着し、該可撓弾性ソケット２の外側からトルクレンチやドライバー等の携帯工具を使用出来る第２の締め付けバンド５を巻回して該第２の締め付けバンド５の一端部に設けたネジ溝部５ａと他端部に設けたボルトネジ５ｂとを螺合締着することにより隣設されるＡ形管１を簡単に接続することが出来、これにより施工性が向上するものである。
【００４９】
上記第５参考例の構成によれば、施工が簡単で施工期間を短縮することが出来、且つ、施工状態が一様に出来る。
【００５０】
また、前述と同様に隣設されるＡ形管１を可撓弾性ソケット２により接続したことで軽量化が図れると共にフレキシブル性を確保することが出来る。
【００５１】
また、可撓弾性ソケット２及び第１、第２の締め付けバンド３，５はＡ形管１の本体の外径よりも多少大きいだけで略同径で構成されるので配管路を地盤に埋設するための溝幅をＡ形管１本体の外径に略合わせて掘削するだけで良く地盤の掘削面積を狭くして掘削作業を軽減することが出来る。
【００５２】
また、Ａ形管１を使用したことで現場で必要な長さに合わせて切断して使用することが出来るので、Ａ形管１の長さの種類を低減して生産性を向上することが出来、在庫管理も容易となるので経済的である。他の構成は前記各参考例と同様に構成され、同様な効果を得ることが出来る。
【００５３】
図12に示す第１実施形態は、Ａ形管１と可撓弾性ソケット２との係止性能を更に向上させた構成を有するものであり、第１の締め付けバンド３が取り付けられる側の可撓弾性ソケット２の突出した凹凸部２ｄの幅寸法に対応してＡ形管１の外周表面に凹部１ｃを穿設したものである。尚、隣設するＡ形管１の端部外周表面も前記凹部１ｃの深さに合わせて外径が設定されている。
【００５４】
前記凹部１ｃ及び隣設するＡ形管１の端部外周表面はＡ形管１の成型時に予め形成出来るように型枠を設計しておけば良く、工場等で比較的容易に量産することが出来る。
【００５５】
上記第１実施形態の構成によれば、可撓弾性ソケット２の凹凸部２ｄがＡ形管１の凹部１ｃに嵌入して係止されるためＡ形管１と可撓弾性ソケット２との係止性能が更に向上する。
【００５６】
図13及び図14は前記第５参考例、第１実施形態において隣設されるＡ形管１を先ず直線状に接続した後、互いに屈曲させるか、或いは、はじめから互いに屈曲させて接続した様子を示す図である。隣設されるＡ形管１を先ず直線状に接続した後、互いに屈曲させる場合には、隣設されるＡ形管１を先ず直線状に配置して両方のＡ形管１の外周端部に可撓弾性ソケット２を装着し、可撓弾性ソケット２の外側から第１、第２の締め付けバンド３，５を巻回して該第１、第２の締め付けバンド３，５を係止して固定した後、隣設される一方のＡ形管１を所望する角度に屈曲して配置する。
【００５７】
また、隣設されるＡ形管１を、はじめから互いに屈曲させて接続する場合には、先ず、隣設される一方のＡ形管１の端部外周に可撓弾性ソケット２の一部（図13の左側）を図13に示すように装着する。そして、可撓弾性ソケット２の外側から第１の締め付けバンド３を巻回して該第１の締め付けバンド３を係止して固定した状態で、隣設される他方のＡ形管１を所望する角度に屈曲して配置し、該他方のＡ形管１の端部外周に前記可撓弾性ソケット２の残りの一部（図13の右側）を斜行した状態で装着する。そして、可撓弾性ソケット２の外側から第２の締め付けバンド５を巻回して該第２の締め付けバンド５を係止して固定する。
【００５８】
上記のように接続することで隣設されるＡ形管１を先ず直線状に接続した後、互いに屈曲させるか、或いは、はじめから互いに屈曲させた状態で簡単に接続することが出来る。
【００５９】
図15及び図16は中央部に蛇腹部２ｈを有する可撓弾性ソケット２を用いた場合の構成を示す。先ず、図15に示すように可撓弾性ソケット２の蛇腹部２ｈが収縮した状態で前述と同様にして隣設するＡ形管１の両方の端部外周に亘って該可撓弾性ソケット２を装着し、第１、第２の締め付けバンド３，５により締め付けて固定する。
【００６０】
その後、図16に示すように、隣設される一方のＡ形管１を所望する角度に屈曲して可撓弾性ソケット２の蛇腹部２ｈを伸長し、隣設されるＡ形管１を互いに屈曲させた状態で容易に接続することが出来る。他の構成は前記各参考例と同様に構成され、同様な効果を得ることが出来る。
【００６１】
尚、前記各参考例では、可撓弾性ソケット２の外側から第１の締め付けバンド３のみ、或いは第１、第２の締め付けバンド３，５を巻回して係止したが、他の構成として、第２の締め付けバンド５のみを可撓弾性ソケット２の外側から巻回して係止した構成であっても良い。
【００６２】
また、前記各参考例では、単純形状端管となるＡ形管１が円筒型管である場合の一例を図示したが、単純形状端管は円筒型管に限定されるものではなく、断面形状が楕円形状管、長円形状管、多角形状管等の種々の形状の単純形状端管に適用することが出来る。
【００６３】
【発明の効果】
本発明は、上述の如き構成と作用とを有するので、隣設される単純形状端管の両方の端部外周に亘って可撓弾性ソケットを装着し、該可撓弾性ソケットの外側から締め付けバンドを巻回し、該締め付けバンドの端部に設けた係合部を係合して係止することにより隣設される単純形状端管を接続する構成の場合には、施工が簡単で施工期間を短縮すると共にフレキシブル性を確保し、重量も軽く、配管路を地盤に埋設するための溝幅を単純形状端管本体の外径に略合わせて掘削するだけで良く、施工状態が一様に出来、現場で必要な長さに合わせて切断して使用することが出来る。
【００６４】
また、前記可撓弾性ソケットの前記締め付けバンドが巻回される嵌合溝に対向する内側面に該可撓弾性ソケットの本体内面よりも突出して凹凸部が形成され、該凹凸部の内側端部に対向して単純形状端管の一方の端部外周表面に凸部が形成され、該単純形状端管の他方の端部外周表面が平坦形状で構成された場合には、可撓弾性ソケットの凹凸部の内側端部と単純形状端管の一方の端部外周表面に形成した凸部とが当接して係止されるため単純形状端管と可撓弾性ソケットとの係止性能が向上すると共に、該単純形状端管の他方の端部外周表面が平坦形状であるため可撓弾性ソケットの片側をスライドさせることが容易に出来、互いに隣設する単純形状端管の離間位置を調節したり、必要に応じて互いに隣設する単純形状端管を屈曲させて配置することが容易に出来る。
【図面の簡単な説明】
【図１】単純形状端管の接続方法により接続した隣設する単純形状端管の接続部の第１参 考例の構成を示す図である。
【図２】第１参考例の接続部の要部を示す断面説明図である。
【図３】第１の締め付けバンドの自然状態を示す図である。
【図４】第１の締め付けバンドの一端部に設けた爪部と他端部に設けた係合部とを係合する様子を示す図である。
【図５】第１の締め付けバンドを係止する工具の一例を示す図である。
【図６】可撓弾性ソケットの第２参考例の構成を示す断面説明図である。
【図７】第３参考例の単純形状端管の接続部の要部を示す断面説明図である。
【図８】第４参考例の単純形状端管の接続部の要部を示す断面説明図である。
【図９】単純形状端管の接続方法により接続した隣設する単純形状端管の接続部の第５参考例の構成を示す図である。
【図10】第５参考例の接続部の要部を示す断面説明図である。
【図11】第２の締め付けバンドの構成を示す図である。
【図12】第１実施形態の接続部の要部を示す断面説明図である。
【図13】第５参考例において隣設される単純形状端管を互いに屈曲させて接続した様子を示す図である。
【図14】第５参考例において隣設される単純形状端管を互いに屈曲させて接続した場合の接続部の要部を示す断面説明図である。
【図15】中央部に蛇腹部を有する可撓弾性ソケットを用いた場合の第６参考例の接続部の要部を示す断面説明図である。
【図16】第６参考例の可撓弾性ソケットの蛇腹部を伸長して隣設される単純形状端管を互いに屈曲させて接続した様子を示す図である。
【図17】従来例を説明する図である。
【図18】従来例を説明する図である。
【符号の説明】
１…Ａ形管
１ａ…端部
１ｂ…凸部
１ｃ…凹部
２…可撓弾性ソケット
２ａ…嵌合溝
２ｂ，２ｃ…突起
２ｄ…凹凸部
２ｅ…ひだ部
２ｆ…本体内面
２ｇ…内側端部
２ｈ…蛇腹部
３…第１の締め付けバンド
３ａ…爪部
３ｂ…係合部
３ｃ，３ｄ…穴
３ｅ，３ｆ…反り部
４…油圧ジャッキ
４ａ…ホース
４ｂ…油圧シリンダー
４ｃ，４ｄ…アーム
４ｅ，４ｆ…突起
５…第２の締め付けバンド
５ａ…ネジ溝部
５ｂ…ボルトネジ
５ｃ…ホルダー[0001]
BACKGROUND OF THE INVENTION
  The present invention relates to a method for connecting a simple-shaped end pipe (referred to as an A-shaped pipe in a fume pipe) used in a pipeline such as a water and sewage system.
[0002]
[Prior art]
  Conventionally, as a pipe used for water and sewage, an A-shaped pipe 51 which is a simple-shaped end pipe shown in FIG. 17, a B-shaped pipe 61 shown in FIG. 18, and the like are used. As a connecting method of the A-shaped pipe 51, as shown in FIG. 17, both the A-shaped pipe 51 adjacent to the rigid collar 52 formed of concrete having an inner diameter larger than the outer diameter of the A-shaped pipe 51 is used. It is common to fit over the outer periphery of the end portion of the first and second portions, and the gap between the collar 52 and the A-shaped tube 51 is kneaded and caulked with a mortar 53 to be joined.
[0003]
As another connection method of the A-shaped pipe, a rubber ring is interposed between a collar made of hard plastic called a dresser type and a push ring at the outer peripheral end of the adjacent A-shaped pipe. A water-stopping rubber ring is attached to the other end of the synthetic resin collar that is connected to the outer peripheral end of one A-shaped tube with an adhesive as disclosed in Japanese Utility Model Publication No. 3-11511. Some are provided and connected.
[0004]
  Further, as shown in FIG. 18, the B-shaped tube 61 has a receiving port 61a having an outer diameter larger than the outer diameter of the B-shaped tube 61 main body at one end and an insertion port fitted into the receiving port 61a at the other end. 61b, and the insertion port 61b of one B-shaped tube 61 is fitted into and joined to the receiving port 61a of the other B-shaped tube 61 with a sealing material such as a rubber ring interposed.
[0005]
[Problems to be solved by the invention]
However, in the above-described conventional example, the connection of the A-shaped pipe 51 shown in FIG. 17 requires that the gap between the collar 52 and the A-shaped pipe 51 be filled with a hard mortar 53 and caulked to be joined. There is a problem that the construction period becomes long because it takes time until the kneaded mortar 53 is cured. Further, since it is a rigid connection by the kneaded mortar 53, there is no flexibility, and it has been necessary to connect a meandering pipe line by separately interposing a meandering curved pipe.
[0006]
Also, since the collar 52 is relatively thick, the weight is heavy, and the groove width for embedding the piping in the ground is matched to the outer diameter of the collar 52 and drilled in a range wider than the outer diameter of the A-shaped pipe 51 main body. Therefore, there is a problem that the work is troublesome, for example, the ground excavation area is widened and the amount of excavated soil is increased.
[0007]
Further, when the A-shaped pipes are connected to each other by interposing a rubber ring between a collar made of hard plastic called a dresser type and a push ring at the outer peripheral end of the adjacent A-shaped pipe, Etc. will be larger than the outer diameter of the A-shaped pipe body, so the groove width for embedding the piping in the ground must be matched to the outer diameter of the push ring and drilled in a wider range than the outer diameter of the A-shaped pipe body. Therefore, there is a problem that work is troublesome, such as the ground excavation area is widened and the amount of excavated sediment increases. In addition, there is a problem in that parts such as a push wheel are expensive and cost is high.
[0008]
Also, as disclosed in Japanese Utility Model Publication No. 3-11511, when a waterproof rubber ring is provided and connected to the other end portion of the synthetic resin collar fixed to the outer peripheral end portion of one A-shaped tube with an adhesive. In order to ensure the strength of the synthetic resin collar, the thickness of the synthetic resin collar is increased, and the outer diameter of the synthetic resin collar is larger than the outer diameter of the A-shaped pipe body, so that the piping path is embedded in the ground. For excavation, the ground excavation area is increased and the amount of excavated soil is increased, because the groove width must be adjusted to match the outer diameter of the synthetic resin collar and wider than the outer diameter of the A-shaped pipe body. There is a problem that it takes time and effort. In addition, since it is necessary to fix a part of the synthetic resin collar to the outer peripheral end of one of the A-shaped tubes with an adhesive, there is a problem that work is troublesome.
[0009]
Further, in the connection of the B-shaped tube 61 shown in FIG. 18, the insertion port 61b of one B-shaped tube 61 is fitted and joined to the receiving port 61a of the other B-shaped tube 61 with a sealing material such as a rubber ring interposed. Therefore, some flexibility can be secured, but the thickness of the receiving port 61a is relatively large, so the weight is heavy, and the width of the groove for embedding the piping in the ground is adjusted to the outer diameter of the receiving port 61a. Since excavation must be performed in a range wider than the outer diameter, there is a problem that work is troublesome, such as the ground excavation area is increased and the amount of excavated soil is increased.
[0010]
In addition, since the receiving port 61a and the insertion port 61b are integrally formed at the end of the B-shaped tube 61, it cannot be cut and used according to the length required on the site like the A-shaped tube 51. Since it is necessary to prepare B-shaped pipes 61 having a plurality of types of lengths, there is a problem that productivity is poor and inventory management is complicated.
[0011]
The present invention solves the above-mentioned problems, and its object is to shorten the construction period and ensure flexibility, light weight, and a groove width for embedding a pipe line in the ground. It only needs to be drilled to roughly match the outer diameter of the pipe body, it does not provide a connection method for simple-shaped end pipes that can be used in a uniform construction state and cut to the required length on site. It is what.
[0012]
[Means for Solving the Problems]
  In order to achieve the above object, a connecting method for a simple-shaped end tube according to the present invention is a flexible elastic socket having an inner diameter corresponding to the outer diameter of the simple-shaped end tube in the adjacent simple-shaped end tube connecting method. Are attached over the outer periphery of both ends of the simple-shaped end tube that is installed next to each other, and a tightening band is wound from the outside of the flexible elastic socket that is mounted on the outer periphery of each end of the adjacent simple-shaped end tube. Turn and connect the adjacent simple end tube by engaging and locking the engaging part provided at the end of the tightening bandAnd an uneven portion is formed on the inner side surface of the flexible elastic socket facing the fitting groove around which the fastening band is wound so as to protrude from the inner surface of the flexible elastic socket. A convex portion is formed on the outer peripheral surface of one end of the simple-shaped end tube so that the outer peripheral surface of the other end of the simple-shaped end tube has a flat shape.It is characterized by that.
[0013]
  According to the above configuration, the flexible elastic socket is attached to the outer periphery of both ends of the simple-shaped end pipes provided next to each other, and the tightening band is wound from the outside of the flexible elastic socket. Since it is configured to connect the adjacent simple shape end pipe by engaging and locking the engaging part provided in the part, the construction is easy, the construction period is shortened and the flexibility is secured, and the weight is also increased It is light, and it is only necessary to dig the groove width for embedding the pipe line in the ground to approximately match the outer diameter of the simple-shaped end pipe body. The construction state can be made uniform and cut according to the length required on site. Can be used.
[0014]
  Also,Since the inner end of the concavo-convex portion of the flexible elastic socket and the convex portion formed on the outer peripheral surface of one end of the simple-shaped end tube are brought into contact and locked, the engagement between the simple-shaped end tube and the flexible elastic socket In addition to improving the stopping performance, since the outer peripheral surface of the other end of the simple-shaped end tube is flat, one side of the flexible elastic socket can be easily slid, and the simple-shaped end tubes adjacent to each other can be separated. It is easy to adjust the position or bend the simple-shaped end tubes adjacent to each other as necessary.
[0015]
DETAILED DESCRIPTION OF THE INVENTION
  An embodiment of a method for connecting simple-shaped end tubes according to the present invention will be specifically described with reference to the drawings. FIG.Is simple1st of the connection part of the adjacent simple shape end pipe connected by the connection method of a pure shape end pipeReference exampleFIG. 2 shows the configuration of the firstReference exampleFIG. 3 is a diagram showing a natural state of the first tightening band, and FIG. 4 is a claw portion provided at one end portion of the first tightening band and the other end portion. The figure which shows a mode that it engages with an engaging part, FIG. 5 is a figure which shows an example of the tool which latches a 1st clamping band, FIG. 6 is the 2nd of a flexible elastic socket.Reference exampleFIG. 7 and FIG. 8 are the third and fourth cross-sectional explanatory views showing the configuration, respectively.Reference exampleFIG. 9 is an explanatory cross-sectional view showing the main part of the connection portion of the simple-shaped end tubeIs simple5th of the connection part of the adjacent simple shape end tube connected by the connection method of the pure shape end tubeReference exampleFigure 10 shows the configuration ofReference exampleFIG. 11 is a diagram showing the configuration of the second fastening band, and FIG.FirstCross-sectional explanatory drawing which shows the principal part of the connection part of embodiment, FIG.Reference exampleFIG. 14 is a diagram showing a state in which adjacent simple-shaped end tubes are bent and connected to each other in FIG.Reference exampleFIG. 15 is a cross-sectional explanatory view showing the main part of the connecting portion when the adjacent simple-shaped end tubes are bent and connected to each other, and FIG. 15 is a case where a flexible elastic socket having a bellows portion at the center is used.Sixth reference exampleFIG. 16 is a cross-sectional explanatory view showing the main part of the connection part of FIG.Sixth reference exampleIt is a figure which shows a mode that the simple-shaped end tube which adjoins by extending the bellows part of this flexible elastic socket, and was bent mutually, and was connected.
[0016]
First, as shown in FIG. 1 and FIG. 2, an A-shaped tube 1 which is a simple-shaped end tube is a simple cylindrical concrete tube or FRP having a predetermined length and diameter in which an end 1a is simply formed vertically. (A fiber reinforced pipe) etc. are comprised, and the A-shaped pipe 1 which has the same diameter is adjacently provided in the length direction, and forms a piping path.
[0017]
It is made of corrosion-resistant urethane, soft plastic, synthetic rubber, natural rubber or the like having an inner diameter corresponding to the outer diameter of the A-shaped pipe 1 over the outer periphery of both ends of the adjacent A-shaped pipe 1. A substantially cylindrical flexible elastic socket 2 is mounted.
[0018]
The flexible elastic socket 2 has flexibility and can be mounted over the outer periphery of both ends of the A-shaped tube 1 which is slid along the outer periphery of the A-shaped tube 1 in the longitudinal direction. In the state where one half of the flexible elastic socket 2 is attached to the outer periphery of one A-shaped tube 1, the other half of the flexible elastic socket 2 is turned over to the attachment portion to be doubled, and the other provided next After the A-shaped tube 1 is disposed, the remaining half of the flexible elastic socket 2 that has been turned over can be returned and mounted on the outer periphery of the other adjacent A-shaped tube 1.
[0019]
A fitting groove 2a having a length corresponding to the width dimension of the fastening band 3 is formed on the outer sides of both ends of the flexible elastic socket 2 by projections 2b and 2c. A triangular uneven portion 2d as shown in FIG. 2 is formed. BookReference exampleThen, the uneven portion 2d is formed substantially flush with the main body inner surface 2f of the flexible elastic socket 2.
[0020]
By providing the uneven portion 2d, the elastic performance of the flexible elastic socket 2 fastened by the fastening band 3 is secured, and the fixing performance of the flexible elastic socket 2 and the A-shaped tube 1 is secured, and further provided next to each other. The watertight performance of the A-shaped tube 1 can be ensured.
[0021]
Then, a fastening band 3 made of a stainless steel plate or the like from the outside of the flexible elastic socket 2 attached to the outer periphery of each end of the adjacent A-shaped pipe 1 is fitted into the fitting groove 2a of the flexible elastic socket 2. A claw portion 3a provided at one end of the tightening band 3 shown in FIGS. 3 and 4 by tightening the tightening band 3 with a hydraulic jack 4 shown in detail in FIG. And the engaging portion 3b provided at the other end of the tightening band 3 are engaged and locked so that the adjacent A-shaped tube 1 and the flexible elastic socket 2 are integrally tightened and fixed. The adjacent A-shaped pipe 1 can be connected.
[0022]
A hydraulic jack 4 as shown in FIG. 5 is used when engaging and locking the claw portion 3a provided at one end of the fastening band 3 and the engaging portion 3b provided at the other end of the fastening band 3. Is done.
[0023]
In FIG. 5, the hydraulic jack 4 is configured so that the arms 4c and 4d sandwiched by the oil sent from the hose 4a are opened and closed by the hydraulic pressure via the hydraulic cylinder 4b, and the natural tightening band shown in FIG. 3, the projections 4 e and 4 f fixed to the ends of the arms 4 c and 4 d of the hydraulic jack 4 are inserted into the holes 3 c and 3 d formed in the fastening band 3 shown in FIG. 4, and the hydraulic jack 4 is operated. By closing the arms 4c and 4d, the tightening band 3 can be tightened against the elastic force of the flexible elastic socket 2, and the claw portion 3a can be engaged with the engaging portion 3b to be locked. .
[0024]
As shown in FIGS. 3 and 4, an end portion of the first tightening band 3 where the engaging portion 3 b is provided is formed with a warped portion 3 e toward the outside. A warped portion 3f directed outward is formed at the end where the portion 3a is provided.
[0025]
Then, as shown in FIG. 4, when the clamping band 3 is tightened against the elastic force of the flexible elastic socket 2 by the hydraulic jack 4 and the claw portion 3a is engaged with the engaging portion 3b and locked, First, the warped portion 3e is brought into contact with and slides on the outer side of the warped portion 3f and guided to the outside, and the first portion is acted on by the action of the warped portion 3f in a state where the claw portion 3a is engaged with and engaged with the engaging portion 3b. The back surface portion of the warped portion 3f of the fastening band 3 is pushed into the flexible elastic socket 2 and is firmly locked.
[0026]
The firstReference exampleAccording to the configuration, the construction is simple, the construction period can be shortened, and the construction state can be made uniform.
[0027]
Moreover, since the A-shaped tube 1 can be used by cutting it according to the required length at the site, the type of the length of the A-shaped tube 1 can be reduced to improve productivity. This is economical because inventory management is easy.
[0028]
Further, the adjacent A-shaped tube 1 is connected by the flexible elastic socket 2, so that the weight can be reduced and the flexibility can be secured.
[0029]
Further, since the flexible elastic socket 2 and the fastening band 3 are configured to have substantially the same diameter, which is slightly larger than the outer diameter of the main body of the A-shaped pipe 1, the groove width for embedding the piping path in the ground is set to the A-shaped pipe. Excavation work can be reduced by narrowing the excavation area of the ground simply by excavating to roughly match the outer diameter of one main body.
[0030]
Where aboveReference exampleThe connection structure in the connection structure of the A-shaped pipe 1 connected by the connection method according to the above and the connection structure of the A-shaped pipe 51 and the B-shaped pipe 61 connected by the conventional connection methods shown in FIGS. A comparison of the outer diameter and the weight of one tube including each connecting member is illustrated in the following “Table 1” and “Table 2”.
[0031]
[Table 1]

[0032]
[Table 2]

[0033]
FIG. 6 shows a second example of the flexible elastic socket 2.Reference exampleThe structure of is shown. In FIG. 6, a pleated portion 2 e that is inclined in the direction of the end portion 1 a of the A-shaped tube 1 is provided on the inner surface of the flexible elastic socket 2 that faces the fitting groove 2 a. The pleat 2e is formed substantially flush with the main body inner surface 2f of the flexible elastic socket 2.
[0034]
When the pleated portion 2e is provided, the elastic performance of the flexible elastic socket 2 and the locking performance with respect to the A-shaped tube 1 can be improved as compared with the triangular uneven portion 2d shown in FIG. . The other configuration is the firstReference exampleIt is comprised similarly to and can obtain the same effect.
[0035]
7 and 8 show third and fourth cases in which the locking performance between the A-shaped tube 1 and the flexible elastic socket 2 is further improved.Reference exampleThe triangular concave and convex portion 2d formed on the inner surface facing the fitting groove 2a of the flexible elastic socket 2 is formed so as to protrude from the main body inner surface 2f of the flexible elastic socket 2. Yes.
[0036]
On the other hand, as shown in FIG.Reference exampleThen, a convex portion 1b is formed on the outer peripheral surface of the end portion of the A-shaped tube 1 so as to face the inner end portion 2g of the protruding concavo-convex portion 2d, as shown in FIG.Reference exampleThen, a concave portion 1c is formed in the outer peripheral surface of the A-shaped tube 1 corresponding to the width of the protruding concave and convex portion 2d.
[0037]
The projecting portion 1b and the recessed portion 1c may be designed in advance so that they can be formed in advance when the A-shaped tube 1 is molded, and can be mass-produced relatively easily at a factory or the like.
[0038]
According to the above configuration, the third configuration shown in FIG.Reference exampleThen, since the inner end 2g of the concavo-convex portion 2d of the flexible elastic socket 2 and the convex portion 1b of the A-shaped tube 1 are brought into contact and locked, the locking performance between the A-shaped tube 1 and the flexible elastic socket 2 is improved. 4th shown in FIG.Reference exampleThen, since the concave and convex portion 2d of the flexible elastic socket 2 is fitted into the concave portion 1c of the A-shaped tube 1 and locked, the locking performance between the A-shaped tube 1 and the flexible elastic socket 2 is further improved. Other configurations are as described above.Reference exampleIt is comprised similarly to and can obtain the same effect.
[0039]
The fifth shown in FIGS. 9 and 10Reference exampleHowever, the triangular uneven portion 2d formed on the inner surface facing the fitting groove 2a of the flexible elastic socket 2 is formed so as to protrude from the main body inner surface 2f of the flexible elastic socket 2, while the protruding uneven portion is formed. A convex portion 1b is formed on the outer peripheral surface of the end portion of the A-shaped tube 1 so as to face the inner end portion 2g of the portion 2d.
[0040]
The convex portion 1b may be designed in advance so that it can be formed in advance when the A-shaped tube 1 is molded, as described above, and can be easily mass-produced at a factory or the like.
[0041]
According to the above configuration, as shown in FIG. 10, since the inner end 2g of the concavo-convex portion 2d of the flexible elastic socket 2 and the convex portion 1b of the A-shaped tube 1 are brought into contact with each other and locked, the A-shaped tube 1 And the flexible elastic socket 2 are improved in locking performance.
[0042]
A fitting groove 2a having a length corresponding to the width dimension of first and second tightening bands 3 and 5, which will be described in detail later, is formed by protrusions 2b and 2c on both outer sides of the flexible elastic socket 2. The aforementioned triangular concave-convex portion 2d is formed on the inner surface facing the fitting groove 2a.
[0043]
By providing the uneven portion 2d, the elastic performance of the flexible elastic socket 2 fastened by the first and second fastening bands 3 and 5 is secured, and the fixing performance of the flexible elastic socket 2 and the A-shaped tube 1 is secured. In addition, the watertight performance of the adjacent A-shaped pipe 1 can be secured.
[0044]
Then, the first and second fastening bands 3 and 5 made of stainless steel plate or the like from the outside of the flexible elastic socket 2 attached to the outer periphery of each end of the adjacent A-shaped tube 1 are flexible. A claw portion provided at one end of the first fastening band 3 shown in FIGS. 3 and 4 by winding and fitting along the fitting groove 2a of the elastic socket 2 and fastening the first fastening band 3. 11a and the engagement portion 3b provided at the other end of the first fastening band 3 are engaged and locked, and the second fastening band 5 is connected to the second fastening band 5 shown in FIG. The A-shaped tube 1 and the flexible elastic socket 2 which are provided next to each other are tightened integrally by screwing and fastening the screw groove 5a provided at one end and the bolt screw 5b provided at the other end. It is possible to connect the A-shaped pipe 1 that is fixed and fixed.
[0045]
When engaging and locking the claw portion 3a provided at one end portion of the first tightening band 3 and the engaging portion 3b provided at the other end portion of the first tightening band 3, the above-described figures. A hydraulic jack 5 as shown in FIG.
[0046]
When the screw groove 5a provided at one end of the second tightening band 5 and the bolt screw 5b provided at the other end are screwed and fastened, the bolt screw 5b shown in FIG. 11 is rotatable. The end of the screw groove 5a side is inserted into the holder 5c held by the screw 5b, the screw groove 5a is screwed onto the thread of the bolt screw 5b, and the bolt screw 5b is tightened with a tool such as a torque wrench or screwdriver (not shown).
[0047]
BookReference exampleThen, as shown in FIG. 10, since the outer peripheral shape of the end portion of the A-shaped tube 1 on the side where the convex portion 1b is not provided at the outer peripheral end portion is flat, one side of the flexible elastic socket 2 is slid. Therefore, as shown in FIGS. 13 and 14 and described later, the A-shaped pipes 1 adjacent to each other can be easily bent and arranged.
[0048]
In addition, at the time of construction, a part of the flexible elastic socket 2 is attached to the outer periphery of one end of the adjacent A-shaped pipe 1 at a factory or the like, and the hydraulic jack 5 is attached from the outside of the flexible elastic socket 2. A first fastening band 3 that requires the use of a tool such as the like is wound to engage a claw portion 3a provided at one end of the first fastening band 3 with an engaging portion 3b provided at the other end. Then, after transporting to the site in a locked and fixed state, and arranging the other A-shaped tube 1 adjacent to the one A-shaped tube 1 at the site, the end of the other A-shaped tube 1 The remaining part of the flexible elastic socket 2 is attached to the outer periphery, and a second fastening band 5 that can be used with a portable tool such as a torque wrench or screwdriver is wound from the outside of the flexible elastic socket 2 to wind the second A screw groove 5a provided at one end of the tightening band 5 and a bolt screw 5b provided at the other end. Nishigoshime can be connected to A-section tube 1 which is provided adjacent simply by wearing, in which thereby workability is improved.
[0049]
Above 5Reference exampleAccording to the configuration, the construction is simple, the construction period can be shortened, and the construction state can be made uniform.
[0050]
Further, by connecting the adjacent A-shaped tube 1 with the flexible elastic socket 2 in the same manner as described above, the weight can be reduced and the flexibility can be ensured.
[0051]
Further, the flexible elastic socket 2 and the first and second fastening bands 3 and 5 are configured to have substantially the same diameter, which is slightly larger than the outer diameter of the main body of the A-shaped pipe 1, so that the piping path is embedded in the ground. Therefore, the excavation work can be reduced by narrowing the excavation area of the ground simply by excavating the groove width for adjusting the outer diameter of the A-shaped pipe 1 main body.
[0052]
Moreover, since the A-shaped tube 1 can be used by cutting it according to the required length at the site, the type of the length of the A-shaped tube 1 can be reduced to improve productivity. This is economical because inventory management is easy. Other configurations are as described above.Reference exampleIt is comprised similarly to and can obtain the same effect.
[0053]
As shown in FIG.FirstThe embodiment has a configuration in which the locking performance between the A-shaped tube 1 and the flexible elastic socket 2 is further improved, and the flexible elastic socket 2 on the side to which the first fastening band 3 is attached protrudes. A concave portion 1c is formed in the outer peripheral surface of the A-shaped tube 1 corresponding to the width dimension of the concave and convex portion 2d. In addition, the outer diameter of the outer peripheral surface of the end portion of the adjacent A-shaped tube 1 is set in accordance with the depth of the concave portion 1c.
[0054]
It is only necessary to design a mold so that the concave portion 1c and the outer peripheral surface of the end portion of the adjacent A-shaped tube 1 can be formed in advance when the A-shaped tube 1 is molded. I can do it.
[0055]
the aboveFirstAccording to the configuration of the embodiment, since the concave and convex portion 2d of the flexible elastic socket 2 is fitted and locked in the concave portion 1c of the A-shaped tube 1, the locking performance between the A-shaped tube 1 and the flexible elastic socket 2 is high. Further improvement.
[0056]
13 and 14 show the fifthReference example,FirstIt is a figure which shows a mode that after connecting the A-shaped pipe | tube 1 adjacently provided in embodiment first to a straight line, it was made to mutually bend, or it was mutually bent from the beginning. When the adjacent A-shaped tubes 1 are first connected in a straight line and then bent together, the adjacent A-shaped tubes 1 are first arranged in a straight line so that the outer peripheral ends of both A-shaped tubes 1 The flexible elastic socket 2 is attached to the first elastic band 2 and the first and second tightening bands 3 and 5 are wound from the outside of the flexible elastic socket 2 to lock the first and second tightening bands 3 and 5. After fixing, one of the adjacent A-shaped tubes 1 is bent and arranged at a desired angle.
[0057]
When the adjacent A-shaped pipe 1 is bent and connected to each other from the beginning, first, a part of the flexible elastic socket 2 (on the outer periphery of one end of the adjacent A-shaped pipe 1 ( The left side of FIG. 13 is mounted as shown in FIG. Then, in the state where the first fastening band 3 is wound from the outside of the flexible elastic socket 2 and the first fastening band 3 is locked and fixed, the other adjacent A-shaped tube 1 is desired. It is bent at an angle, and the other part of the flexible elastic socket 2 (the right side in FIG. 13) is attached to the outer periphery of the end of the other A-shaped tube 1 in a skewed state. Then, the second fastening band 5 is wound from the outside of the flexible elastic socket 2, and the second fastening band 5 is locked and fixed.
[0058]
By connecting as described above, the adjacent A-shaped pipes 1 can be connected in a straight line and then bent together, or can be simply connected in a state where they are bent from the beginning.
[0059]
15 and 16 show a configuration in the case where the flexible elastic socket 2 having the bellows portion 2h at the center is used. First, as shown in FIG. 15, with the bellows portion 2h of the flexible elastic socket 2 contracted, the flexible elastic socket 2 is extended over the outer periphery of both ends of the A-shaped tube 1 that is adjacently provided in the same manner as described above. Attach and fasten and fix with the first and second fastening bands 3 and 5.
[0060]
Thereafter, as shown in FIG. 16, one adjacent A-shaped tube 1 is bent at a desired angle to extend the bellows portion 2h of the flexible elastic socket 2, and the adjacent A-shaped tubes 1 are connected to each other. It can be easily connected in a bent state. Other configurations are as described above.Reference exampleIt is comprised similarly to and can obtain the same effect.
[0061]
Each of the aboveReference exampleThen, only the first tightening band 3 or the first and second tightening bands 3 and 5 are wound and locked from the outside of the flexible elastic socket 2, but the second tightening band 5 can be used as another configuration. The structure which wound only from the outer side of the flexible elastic socket 2, and latched may be sufficient.
[0062]
In addition, each of the aboveReference exampleIn the above, an example in which the A-shaped tube 1 serving as a simple-shaped end tube is a cylindrical tube is shown, but the simple-shaped end tube is not limited to a cylindrical tube, and the cross-sectional shape is an elliptical tube, a long tube The present invention can be applied to various types of simple-shaped end tubes such as a circular tube and a polygonal tube.
[0063]
【The invention's effect】
  Since the present invention has the above-described configuration and operation, a flexible elastic socket is attached over the outer circumferences of both ends of the adjacent simple-shaped end tube, and a tightening band is attached from the outside of the flexible elastic socket. In the case of a configuration in which the adjacent simple shape end pipe is connected by engaging and locking the engaging portion provided at the end of the fastening band, the construction is simple and the construction period is reduced. Shortening, ensuring flexibility, light weight, and simply excavating the groove width for embedding the pipe line in the ground roughly match the outer diameter of the simple-shaped end pipe body, and the construction state can be made uniform. It can be used by cutting to the required length on site.
[0064]
  In addition, the inner surface of the flexible elastic socket that protrudes from the inner surface of the main body of the flexible elastic socket is formed on the inner surface of the flexible elastic socket that faces the fitting groove around which the fastening band is wound. When a convex portion is formed on the outer peripheral surface of one end of the simple-shaped end tube and the outer peripheral surface of the other end of the simple-shaped end tube is formed in a flat shape, the flexible elastic socket Since the inner end of the concavo-convex portion and the convex portion formed on the outer peripheral surface of one end of the simple-shaped end tube come into contact with each other and are locked, the locking performance between the simple-shaped end tube and the flexible elastic socket is improved. In addition, since the outer peripheral surface of the other end of the simple-shaped end tube has a flat shape, one side of the flexible elastic socket can be easily slid, and the separation position of the adjacent simple-shaped end tubes can be adjusted. If necessary, bend the simple-shaped end tubes adjacent to each other. To that it can be easily.
[Brief description of the drawings]
[Figure 1]single1st of the connection part of the adjacent simple shape end pipe connected by the connection method of a pure shape end pipethree ExampleFIG.
FIG. 2 FirstReference exampleIt is sectional explanatory drawing which shows the principal part of this connection part.
FIG. 3 is a diagram showing a natural state of a first tightening band.
FIG. 4 is a diagram showing a state in which a claw portion provided at one end portion of a first tightening band is engaged with an engaging portion provided at the other end portion.
FIG. 5 is a view showing an example of a tool for locking the first tightening band.
FIG. 6 shows a second flexible elastic socket.Reference exampleIt is a section explanatory view showing the composition.
FIG. 7Reference exampleIt is sectional explanatory drawing which shows the principal part of the connection part of this simple shape end tube.
FIG. 8Reference exampleIt is sectional explanatory drawing which shows the principal part of the connection part of this simple shape end tube.
FIG. 9single5th of the connection part of the adjacent simple shape end tube connected by the connection method of the pure shape end tubeReference exampleFIG.
Fig. 10Reference exampleIt is sectional explanatory drawing which shows the principal part of this connection part.
FIG. 11 is a diagram illustrating a configuration of a second tightening band.
[Figure 12]FirstIt is sectional explanatory drawing which shows the principal part of the connection part of embodiment.
Fig. 13Reference exampleIt is a figure which shows a mode that the simple-shaped end pipes adjoined in FIG.
FIG. 14Reference exampleIt is a cross-sectional explanatory drawing which shows the principal part of a connection part at the time of connecting the simple-shaped end pipes adjoined in FIG.
FIG. 15 shows a case where a flexible elastic socket having a bellows portion at the center is used.Sixth reference exampleIt is sectional explanatory drawing which shows the principal part of this connection part.
[Figure 16]Sixth reference exampleIt is a figure which shows a mode that the simple-shaped end tube which adjoins by extending the bellows part of this flexible elastic socket, and was bent mutually, and was connected.
FIG. 17 is a diagram illustrating a conventional example.
FIG. 18 is a diagram illustrating a conventional example.
[Explanation of symbols]
1 ... A-shaped pipe
1a ... end
1b ... convex part
1c ... recess
2. Flexible elastic socket
2a ... Fitting groove
2b, 2c ... projection
2d ... Uneven portion
2e ... folds
2f ... Internal surface
2g ... inner edge
2h ... bellows
3 ... 1st tightening band
3a ... Claw
3b ... engaging portion
3c, 3d ... holes
3e, 3f ... Warpage
4 ... Hydraulic jack
4a ... hose
4b ... Hydraulic cylinder
4c, 4d ... Arm
4e, 4f ... projection
5 ... Second tightening band
5a ... Screw groove
5b ... Bolt screw
5c ... Holder

Claims (1)

In the connecting method of adjacent simple shape end tubes, a flexible elastic socket having an inner diameter corresponding to the outer diameter of the simple shape end tubes is mounted over the outer circumferences of both ends of the adjacent simple shape end tubes. The fastening band is wound from the outside of the flexible elastic socket attached to the outer periphery of each end of the simple-shaped end tube provided next, and the engaging portion provided at the end of the fastening band is engaged to engage. Next, a simple-shaped end tube adjacent to the flexible elastic socket is connected, and the inner surface of the flexible elastic socket facing the fitting groove around which the fastening band is wound protrudes from the inner surface of the main body of the flexible elastic socket. An uneven portion is formed, a convex portion is formed on the outer peripheral surface of one end of the simple shape end tube so as to face the inner end of the uneven portion, and the outer peripheral surface of the other end of the simple shape end tube is flat. connection simple shaped end tube, characterized in that configured in the shape.

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