Device for permanent joining of tubes

摘要: A device for permanent joining of tubes (1, 2) made flexible material, such as polyethylene, and specially intended use covering or lining when drilling holes in the ground, particularly soil moraine, including a female portion (3) on first tube (1) male (10) interacting therewith second (2), being provided with an annular projection (11) round its outer circumference, which under radial deformation thereof and/or (4) inner circumference is arranged to pass this be inserted recess (5) portion. Round plurality annular, axially spaced projections (11a-1). The recesses (5a-1) are at distance corresponding between which, position, inserted.