JPH02128890U

JPH02128890U -

Info

Publication number: JPH02128890U
Application number: JP3835189U
Authority: JP
Priority date: 1989-03-31
Filing date: 1989-03-31
Publication date: 1990-10-24

Description

[Brief explanation of drawings]

第１図はこの考案の一実施例による二層管用接
続継手の分解断面図、第２図は他の実施例による
二層管用接続継手の分解断面図である。図において、１は排水立管、１１は上流側内管
、１２は上流側外管、３は二層管継手、３１は継
手内管、３２は継手外管、４は媒介継手、４１は
継手外管接続用嵌合胴部、４３は排水立管接続用
嵌合胴部、５は排水用横枝管、６は分岐管である
。 FIG. 1 is an exploded sectional view of a two-layer pipe connection joint according to one embodiment of the invention, and FIG. 2 is an exploded sectional view of a two-layer pipe connection joint according to another embodiment. In the figure, 1 is a drainage standpipe, 11 is an upstream inner pipe, 12 is an upstream outer pipe, 3 is a two-layer pipe joint, 31 is a joint inner pipe, 32 is a joint outer pipe, 4 is an intermediate joint, and 41 is a joint. Reference numeral 43 indicates a fitting body for connecting an outer pipe, numeral 43 indicates a fitting body for connecting a drainage standpipe, 5 indicates a horizontal branch pipe for drainage, and 6 indicates a branch pipe.

Claims

[Scope of utility model registration request]

A drainage standpipe with a double pipe configuration consisting of an inner pipe whose interior is a drainage route and an outer pipe which forms a ventilation route between the inner pipe and the outer circumferential surface of the inner pipe, an upstream inner pipe and a downstream side of this drainage standpipe. It consists of a joint inner pipe that connects the inner pipe, and a joint outer pipe that connects the upstream outer pipe and downstream outer pipe of the drainage standpipe, and has a connection opening to the joint inner pipe in the direction of the inner surface surface thereof. A two-layer pipe connection joint comprising a two-layer pipe joint having a branch pipe for connecting a drainage horizontal branch pipe, comprising an intermediary joint for connecting the drainage standpipe and the two-layer pipe joint, the intermediary joint comprising: ,
At least the upstream inner pipe of the drainage standpipe and the joint inner pipe of the two-layer pipe joint are fitted and connected to the joint outer pipe in a state where they are in communication with each other, and at the time of said fitting, they are press-fitted and engaged with the joint outer pipe. A fitting body for connecting the outer pipe of the joint having an elastic sealing material for sealing the space between the outer pipe and the outer pipe of the joint; 1. A connecting joint for a two-layer pipe, characterized in that it is configured to integrally include a fitting body for connecting a drainage standpipe, which has an elastic sealing material that seals between the outer pipe and the outer pipe.