| 摘要 |
A hose coupling device comprises a first thrust surface formed on one end of an objective member having a tubular connecting portion to which a hose is to be coupled, the first thrust surface extends radially outwardly around the base portion of the tubular connecting portion; a second thrust surface formed on the end surface of an annular thrusting member adjacent to the objective member, the annular thrusting member being disposed around and coaxially with the tubular connecting portion with an annular gap therebetween and movable axially relatively to the tubular connecting portion, the second thrust surface opposing to the first thrust surface such that the space defined between the thrust surfaces is converged radially outwardly; a radially contractable and expandable annular tightening member contacted at its both sides by the first thrust surface and the second thrust surface, respectively, and disposed coaxially with the tubular connecting portion, the annular tightening member including a circular core wire ring, a plurality of short sleeves having bores loosely receiving the core wire ring, and a plurality of compressive tubular resilient members having bores loosely receiving the core wire ring, the short sleeves and the compressive tubular resilient members being arranged alternatingly along the circumference of the core wire ring so that each compressive tubular resilient member resiliently urges the adjacent short sleeves away from each other; and a driving means for axially driving the annular thrusting member axially towards and away from the objective member.
|
