DISPOSITIVO PER LA REGOLAZIONE DEL FLUSSO DI ASPIRAZIONE IN UN TUBO FLESSIBILE DI COLLEGAMENTO TRA UN UTENSILE PER LA LAVORAZIONE DI SUPERFICI ED UN GRUPPO DIO ASPIRAZIONE DELLE POLVERI DI LAVORAZIONE

摘要

The invention refers to a device for regulating the suction flow in a flexible connection pipe between a tool for machining surfaces and a machining dust suction unit, comprising a tubular terminal connector (1) fitted with internal threading (4) for attaching to the flexible pipe and at least one side opening (3) on the external surface. Said device also comprises a hollow cylindrical body (2) that rotatably embraces at least one portion of said terminal connector (1) and is fitted on its external surface with at least one opening (5) that can be adjusted angularly in relation to said opening (3) of the terminal connector.