JPS6436791U - - Google Patents

Description

【図面の簡単な説明】[Brief explanation of drawings]

第１図は本考案による多重管継手の第１実施例
の上半分を示した縦断面図、第２図は本考案によ
る多重管継手の第２実施例の上半分を示した縦断
面図、第３図及び第４図は夫々第２図の変形例を
示した第２図と同様の縦断面図である。 １……多重管、２……内側管、２ａ……内側管
流路、３……外側管、３ａ……間隙流路、４……
多重管継手、５……接続本体、５ａ……環状基部
、５ｂ……内側管用接合管部、５ｃ……外側管用
接合管部、６……ガスケツト、７，８，１６……
固定部材、９……貫通孔、１３……コネクタ、１
７，１８……Ｏ―リング。 FIG. 1 is a vertical cross-sectional view showing the upper half of a first embodiment of a multiple pipe joint according to the present invention, FIG. 2 is a vertical cross-sectional view showing the upper half of a second embodiment of a multiple pipe joint according to the present invention, 3 and 4 are longitudinal sectional views similar to FIG. 2, respectively, showing a modification of FIG. 2. FIG. DESCRIPTION OF SYMBOLS 1...Multiple pipe, 2...Inner pipe, 2a...Inner pipe flow path, 3...Outer pipe, 3a...Gap flow path, 4...
Multiple pipe joint, 5...Connection body, 5a...Annular base, 5b...Joint pipe section for inner pipe, 5c...Joint pipe section for outer pipe, 6...Gasket, 7, 8, 16...
Fixing member, 9... Through hole, 13... Connector, 1
7,18...O-ring.

Claims (1)

【実用新案登録請求の範囲】 １ 内側管と外側管とを同心状に配置し両者の間
に環状流路を形成した多重管を互いに締結する多
重管継手において、上記内側管の流路に連通する
内側流路と上記環状流路に連通する外側流路とを
別個に備えた一対の接続本体と、この一対の接続
本体の間に介在され、上記一対の接続本体の接合
部において上記内側流路と上記外側流路とを隔離
する少なくとも１個のシール材と；上記一対の接
続本体を互いに結合固定する固定部材とを具備し
、上記一対の接続本体の各々は、上記内側管の内
径にほぼ等しい内孔を有する環状の基部と；上記
内側流路を形成するように上記環状基部の一方の
端面から上記多重管の軸方向に突出され、この突
出先端が上記内側管に接合固着される内側管用接
合管部と；この内側管用接合管部との間に上記外
側流路を形成するように上記環状基部の上記一端
面から上記多重管の軸方向に突出され、この突出
先端が上記外側管に接合固着される外側管用接合
管部とから構成され、上記一対の接続本体の各々
の環状の基部には、一方の接続本体の上記外側流
路と他方の接続本体の上記外側流路とを連通する
ための１個以上の貫通孔がほぼ上記軸方向に穿孔
されていることを特徴とする多重管継手。 ２ 上記一対の接続本体の間にはコネクタが配置
され、このコネクタは、上記内側管の内径とほぼ
同径の内径を有する管形状であり、上記各接続本
体の貫通孔に夫々連通するように上記軸方向に穿
孔された連通孔を有し、上記シール材は、一方の
接続本体と上記コネクタの一端面との間及び他方
の接続本体と上記コネクタの他端面との間に夫々
介在されていることを特徴とする実用新案登録請
求の範囲第１項記載の多重管継手。[Scope of Claim for Utility Model Registration] 1. In a multiple pipe joint in which multiple pipes are connected to each other in which an inner pipe and an outer pipe are arranged concentrically and an annular flow path is formed between them, the pipe is connected to the flow path of the inner pipe. a pair of connection bodies each separately provided with an inner flow path that communicates with the annular flow path and an outer flow path that communicates with the annular flow path; at least one sealing member for isolating the channel from the outer flow channel; and a fixing member for coupling and fixing the pair of connection bodies to each other, each of the pair of connection bodies being connected to the inner diameter of the inner tube. an annular base having approximately equal inner holes; protruding from one end surface of the annular base in the axial direction of the multi-tube so as to form the inner flow path, and the protruding tip being joined and fixed to the inner tube; The joint pipe part for the inner pipe is protruded from the one end surface of the annular base in the axial direction of the multiple pipe so as to form the outer flow path between the joint pipe part for the inner pipe, and this protruding tip is connected to the outer pipe part. and a joint tube section for an outer pipe that is fixedly joined to the pipe, and the annular base of each of the pair of connection bodies includes the outer flow path of one connection body and the outer flow path of the other connection body. A multiple pipe joint characterized in that one or more through holes for communicating with each other are bored substantially in the axial direction. 2 A connector is disposed between the pair of connection bodies, and this connector has a tube shape having an inner diameter approximately the same as the inner diameter of the inner tube, and is configured to communicate with the through holes of each of the connection bodies, respectively. The communication hole is formed in the axial direction, and the sealing material is interposed between one connection body and one end surface of the connector, and between the other connection body and the other end surface of the connector. 1. The multiple pipe joint according to claim 1, which is characterized in that: