| 摘要 |
A separable rapid-action coupling serves for connecting fluid lines includes a tubular plug-in part with a circumferential holding rib, a coupling housing with a cylindrical receptacle cavity for the plug-in part and a separate holding element. The holding element has elastically expandable holding edges that are radially directed into the receptacle cavity. The holding edges engage behind the holding rib after insertion of the plug-in part. A safety clip with a second locking mechanism is situated in front of the plug-in opening of the housing in case the snap-in mechanism of the holding element fails. The safety clip includes a frame that fits on the end face of the coupling housing and two elastically expandable clips that engage corresponding projections on the coupling housing. The safety clip has snap-in fingers that can be inserted into the receptacle cavity. The front ends of the snap-in fingers are supported on the holding rib of the fully engaged plug-in part while snap-in tabs that protrude outward from the snap-in fingers are directed toward the rear simultaneously engage behind contact edges that inwardly protrude from the housing wall. This safety clip can be inexpensively manufactured from a plastic material and easily preassembled on the coupling housing for the intended purpose. In addition, a centrally arranged support ring and the corresponding arrangement of the snap-in fingers on the support ring and on the frame make it possible to design the safety clip in such a way that it is pulled into the receptacle cavity simultaneously with the insertion of the plug-in part and the snap-in tabs are automatically moved into their locking position.
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