Patent ID: 9255658
Filing Date: 2016-02-09
CPC Classification: F16L

Claim Text:
1. A connection device, comprising: an insertion section having an annular outer groove, a housing configured to receive the insertion section, a blocking element configured to lock the insertion section in the housing, wherein the blocking element for locking the insertion section in the housing engages into the annular outer groove and into an annular inner groove formed in the housing, wherein the blocking element is configured to be withdrawn through a housing opening substantially tangentially to the grooves, wherein, in a pre-fitted state, the blocking element is pre-fitted in the inner groove with elastic deflection, and the insertion section is configured to be inserted into the housing, wherein the blocking element has a band-shaped core and a plurality of teeth arranged adjacent in the peripheral direction along the core, each of the teeth including an outer tooth section configured to interact with the inner groove in the pre-fitted state and an inner tooth section configured to interact with the outer groove in an inserted state, wherein the inner and outer tooth sections protrude from the core on opposite sides, wherein the core has a core profile in a cross-section at least between adjacent teeth, which core profile has a core principal direction determined by a maximum diameter, wherein the teeth in the cross-section respectively have a tooth profile which has a tooth principal direction determined by an inner flank of the teeth lying radially on an interior of the outer tooth section, wherein the core principal direction is inclined with respect to the tooth principal direction, and wherein the housing includes a securing device arranged on the outside of the housing, the securing device including an outer stop lying opposite an end of the blocking element in the peripheral direction in the pre-fitted state, and a mounting pocket in which the end of the blocking element is inserted in the pre-fitted state.