| 摘要 |
<p>A coupling to connect pipe, including lengths of pipe, valves, hoses, and pipe and hose fittings, includes a body to closely receive the end portion of the pipe to be coupled and jaw members to secure the pipe to be coupled in the coupling. The jaw members of the coupling may include a set of first class lever jaw members having a power arm and a weight arm mounted to the coupling body to establish a fulcrum for rotation of each lever jaw member about the fulcrum between an engaged position and a disengaged position with respect to the pipe end portion when received in the coupling body. Additionally or alternately, jaw members may be provided adapted to slide along the inner groove in the coupling body to move between a position spaced radially from the received pipe to allow the pipe to move into or out of the coupling body and a position securing the pipe in the coupling body.</p> |
