JPH01149089U

JPH01149089U -

Info

Publication number: JPH01149089U
Application number: JP4703688U
Authority: JP
Priority date: 1988-04-06
Filing date: 1988-04-06
Publication date: 1989-10-16

Description

[Brief explanation of drawings]

第１図は本考案の一実施例を示す縦断面図、第
２図は本考案の他の実施例を示す縦断面図である
。図に於て、１は外管、２は内管、５は管接手部
、７は筒状シール部である。 FIG. 1 is a longitudinal cross-sectional view showing one embodiment of the present invention, and FIG. 2 is a longitudinal cross-sectional view showing another embodiment of the present invention. In the figure, 1 is an outer tube, 2 is an inner tube, 5 is a pipe joint part, and 7 is a cylindrical seal part.

Claims

[Claims for Utility Model Registration] A pipe joint that connects at the mouth of the outer pipe so that the outer pipe and the inner pipe inserted into the outer pipe can slide in the pipe axial direction; and a pipe mouth of the outer pipe. A tube consisting of a cylindrical seal part that is expandable and retractable in the tube axis direction, and one end is fixed to the outer circumferential surface of the inner tube and the other end is fixed to the inner circumferential surface of the outer tube, respectively, on the inner side. Telescopic joint device. The pipe joint part is interposed between a push ring fitted onto the inner pipe, a tightening fitting for pulling the push ring toward the outer pipe as appropriate, and the inner and outer pipes, and is arranged between the inner and outer pipes to pull the push ring toward the outer pipe. 2. The tube expansion joint device according to claim 1, further comprising an annular packing that is pressed against the inner and outer tubes by means of compression.