JPH0287204U

JPH0287204U -

Info

Publication number: JPH0287204U
Application number: JP16784488U
Authority: JP
Priority date: 1988-12-26
Filing date: 1988-12-26
Publication date: 1990-07-10

Description

[Brief explanation of the drawing]

第１図は本考案に係る光フアイバ入り金属管の
接続部における一実施例の要部拡大縦断面図、第
２図は該接続部の製造過程を示す側面図、第３図
及び第４図は金属管本体の端部外周に設ける軸力
発生用溝の２種の例を示す側面図、第５図は鎧装
型単心海底電力ケーブルの概略構成を示す横断面
図、第６図は第５図の要部拡大図、第７図は光フ
アイバ入り金属管の一例を示す横断面図である。７……光フアイバ入り金属管、８……金属管本
体、９……孔、１０……光フアイバ、２０……軸
力発生用溝、２１……袋ナツト、２２……軸力発
生用パツキン、２３……ワツシヤ、２４……シー
ル用パツキン、２５……接続パイプ、２７……補
強パイプ。 Fig. 1 is an enlarged longitudinal cross-sectional view of a main part of an embodiment of the connection part of the optical fiber-containing metal tube according to the present invention, Fig. 2 is a side view showing the manufacturing process of the connection part, and Figs. 3 and 4. 5 is a side view showing two examples of axial force generation grooves provided on the outer periphery of the end of the metal tube body, FIG. 5 is a cross-sectional view showing a schematic configuration of an armored single-core submarine power cable, and FIG. FIG. 5 is an enlarged view of the main part, and FIG. 7 is a cross-sectional view showing an example of a metal tube containing an optical fiber. 7... Metal tube containing optical fiber, 8... Metal tube body, 9... Hole, 10... Optical fiber, 20... Groove for generating axial force, 21... Cap nut, 22... Packet for generating axial force. , 23... Washer, 24... Seal packing, 25... Connection pipe, 27... Reinforcement pipe.

Claims

[Scope of utility model registration request]

At the joint of a metal tube containing an optical fiber, in which metal tubes containing an optical fiber are connected to each other, the optical fibers protruding from the ends of both metal tube bodies become optical fibers. connected at a connecting portion, and an axial force generating groove is formed on the outer periphery of each end of the two metal tube bodies, respectively;
The optical fiber connecting portion interposed between the ends of both metal tube bodies and the optical fibers on both sides thereof are housed in a connecting pipe, and both ends of the connecting pipe are attached to the outer periphery of the ends of the metal tube bodies on both sides, respectively. A cap nut fitted onto the outer periphery of each of the metal tube bodies is screwed onto both ends of the connecting pipe, and an axial force generating groove is formed on the outer periphery of each of the axial force generation grooves of the metal tube body. The axial force generating gasket is compressed by each of the cap nuts and the end of the connecting pipe, and a portion thereof is engaged with the axial force generating groove. Connection part of metal tube containing optical fiber.