Quick-connection coupling with flat connection and arrangements for avoiding the hydraulic fluid escaping during a joining or separating operation

Abstract

Quick-connection coupling with flat connection and arrangements for avoiding the hydraulic fluid escaping during a joining or separating operation Quick-connection coupling with a flat connection and arrangements for avoiding the hydraulic fluid escaping during a joining or separating operation, it being provided that the receiving component has an inner, displaceable sleeve which comprises two components which are arranged concentrically with one another and can be displaced in relation to one another, it being the case that the displaceable component, designed in two parts, comprises a first tubular component, of which the front part has a guide and sliding surface for a sealing ring which is arranged in the interior of the projecting component which is to be connected, and the guide and sliding surface terminates at a stop step on which a spring means acts, it being the case that the first tubular component is accommodated in a displaceable manner by the front part of a second tubular component, which has a step which can be influenced by the end piece of the first tubular component, and the free end of the second tubular component has a collar which interacts with an annular thickened portion of a union nut, which is arranged in a stationary manner.

Dependencies are inferred from the claim text.