| 摘要 |
The invention relates to a screw on for flexible tube nozzles wherein the corresponding end of a flexible tube is subjected in a nozzle tube (1) with an annular spring (5) which in turn can tighten through the diameter reduction by means of an interior cone (8) and a screwable sleeve (2). In accordance with the invention the interior cone (8) is found placed in the sleeve (4) that surrounds the tube (1) of the nozzle opening against the end of the flexible tube that should be inserted. The end of the side of the helicoid spring by screw compression of the screwing sleeve (2) that can be screwed in the sleeve (4) of the tube (1) of the nozzle has an annular support surface (9) that radially extends, which diameter (DA) has a dimension a little more than the medium diameter (DM) of the annular spring (5) which is not radially drawn. In the flat slot 810) having a depth in the gamma of 0.2 to 0.8 mm preferably 0.5 mm and which is found placed in the region of the axial displacement of the compression helicoid spring (5) on the tube (1) of the nozzle, through at least slot flanks (F') essentially oriented in perpendicular form with respect to the sleeve surface (M) of the nozzle of the tube in such a manner set apart between each other, that at lease two sharp edges (10') form the elements for the production of the lineal tightness in the flexible tube when the annular spring (5) is found in a fastened position.
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