FIELD: machine building.
SUBSTANCE: clamping connecting device for coupling pipeline coupling sleeves contains two parts of clamping ring that are connected on one end via articulated swivel capable of rotation round it between moved apart positions and coupling positions moved closer to each other, and clamping device, located at the end of clamping ring parts opposite the articulated swivel, with tightening screw that is capable of rotating from working position, which it for creating clamping force coupling the parts of clamping ring into clamping position interacts with them, to free position, in which clamping ring parts are free. Clamping device includes locking device that in its working position prevents throwing back of the tightening screw into free position and depending upon extension of clamping ring parts to preset opening angle it moves from working position into free position that allows throwing back the tightening screw.
EFFECT: invention improves the connection reliability.
7 cl, 4 dwg
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