| 摘要 |
The present invention relates to a connection coupling for fixing thin-walled hoses on a hose nipple. In the outer circumference of the hose nipple is formed an annular groove into which is pressed the hose pushed onto the hose nipple by means of a collar compressed by the coupling bolt lever lock, said bolt lever lock being fixed rotatably around an axis at said collar, said collar comprising a portion formed of a helical spring. The invention is characterized in that (a) a portion of said collar is formed of a half shell (4) comprising a central internal squeezed circumferential bead, (b) bolt lever lock (5) is articulated at one hand to half shell (4) and on the other hand to helical spring (6), (c) the length of helical spring (6) and the location of its fixing points (11, 13) at half shell (4) and at bolt lever lock (5) is adapted to an uninterrupted compression in closed condition also in the range of bolt lever lock (5).
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