The snap connection for sealed and releasable connection of a first tube end
with a second tube end, with spring arms, with a first outer stop projection on
the first tube end, with a first elastically deformable ring connected with the
spring arms, and with two first inner stop cams on the first ring cooperating with
the first outer stop projection, is characterized by a second outer stop projection
on the second tube end, a second elastically deformable ring connected with the
spring arms with distance from the first ring, and by two, second inner stop cams
on the second ring cooperating with the second outer stop projection. Both rings
with their stop cams, connected to one another via the spring arms, form a double-connection
element separable by and on both tube ends, which can be made from a plastic injection
molding part. The first tube end, for example, can be made by extrusion low-molding
and directly assembled with the second tube end, which can be a metal or plastic
connecting piece, whereby the connection is fixed in a sealed position after the
snapping of the double-connection element.
