JPH01132884U

JPH01132884U -

Info

Publication number: JPH01132884U
Application number: JP2561088U
Authority: JP
Priority date: 1988-02-26
Filing date: 1988-02-26
Publication date: 1989-09-08

Description

[Brief explanation of drawings]

第１図は本考案の推進工法用埋設管の接続構造
の一例を示す断面図、第２図はその接続構造を用
いた埋設管による推進工法の一例を示す断面図で
ある。１０，１０′……埋設管、２０……挿し口部材
、２１……挿し口、２１ａ……凸条、３０……パ
ツキン、４０……受け口部材、４１ａ……凹溝。 FIG. 1 is a sectional view showing an example of a connection structure for a buried pipe for a propulsion method of the present invention, and FIG. 2 is a sectional view showing an example of a propulsion method using a buried pipe using the connection structure. 10, 10'... Buried pipe, 20... Socket member, 21... Socket, 21a... Convex strip, 30... Packing, 40... Socket member, 41a... Concave groove.

Claims

[Scope of Claim for Utility Model Registration] A connection structure for buried pipes in a propulsion method in which a horizontal shaft is formed underground and the buried pipes are sequentially propelled into the horizontal shaft, and the buried pipes are joined together and laid. It is externally fixed to the rear end of the buried pipe in the propulsion direction, and protrudes rearward from the rear end surface of the buried pipe,
A socket member having a socket having a groove or a convex groove provided in the circumferential direction on its outer peripheral surface, and having a tapered shape whose diameter gradually decreases as the outer peripheral surface of the distal end in the propulsion direction approaches the distal end side; It is loosely fitted to the distal end in the propulsion direction of the subsequent buried pipe, and has a predetermined gap from the outer peripheral surface of the distal end of the buried pipe so that the insertion port can fit therein, and the insertion port is fitted on the inner peripheral surface of the distal end of the buried pipe. A socket member having a convex groove or a groove in the circumferential direction that can fit into a concave groove or a convex groove of the mouth, and having a tapered shape whose diameter gradually decreases as the outer circumferential surface of the rear end becomes closer to the rear end side. and disposed within the gap of the receptacle member,
A buried pipe connection structure for a propulsion method, comprising: a packing compressed by the rear end surface of the insertion port fitted into the gap and the inner surface of the socket member.