| 摘要 |
A coupling device ( 1 ) for releasably connecting tubular elongate members ( 4, 5 ) with improved efficiency. The coupling device ( 1 ) comprises first and second end piece connectors ( 2, 3 ) which are threadably secured or otherwise attached to connection ends ( 6, 7 ) of first and second tubular elongate members ( 4, 5 ). First and second end piece connectors ( 2, 3 ) are connected by rotating each end piece connector ( 2, 3 ) a minimal amount relative to each other, such that the rotation simultaneously locks end piece connectors ( 2, 3 ) together and engages mating tapers ( 31, 32 ) thus sealing the two end piece connectors ( 2, 3 ) and creating a leak proof seal. Coupling device ( 1 ) is just as easily disengaged, by rotating the two end piece connectors ( 2, 3 ) each in the opposite direction from engagement. A similar coupling device ( 1 ') with all the same features as coupling device ( 1 ) plus a swivel feature is incorporated. In this way, the coupling device ( 1 ) and ( 1 ') provide a quick, easy and effective sealing mechanism especially useful to carpet cleaners who need to repeatedly connect and disconnect sections of vacuum hoses throughout their workday. |
