Adapter device for coupling a nozzle to a container

Abstract

The present invention concerns an adaptor device for coupling a suction nozzle to a container, preferably containing chemical products, comprising:—an at least partially elastic disc ( 1 ), provided with a through hole ( 2 ), one or more tongues ( 4 ) coupled to the disc ( 1 ) and projecting from one surface of the disc ( 1 ), the disc ( 1 ) being capable to transmit a pressure exerted onto a perimeter of the through hole ( 2 ) so that a free end of each one of said one or more tongues ( 4 ) bends towards a central portion of the disc ( 1 ).

1 . Adaptor device for coupling a suction nozzle to a container, preferably containing chemical products, comprising:
 an at least partially elastic disc ( 1 ), provided with a through hole ( 2 ),   one or more tongues ( 4 ) coupled to the disc ( 1 ) and projecting from one surface of the disc ( 1 ),   
     the disc ( 1 ) being capable to transmit a pressure exerted onto a perimeter of the through hole ( 2 ) so that a free end of each one of said one or more tongues ( 4 ) bends towards a central portion of the disc ( 1 ). 
   
   
       2 . Adaptor device according to  claim 1 , characterised in that the disc ( 1 ) is made of plastic material, preferably PVC. 
   
   
       3 . Adaptor device according to  claim 1  or  2 , characterised in that the through hole ( 2 ) of the disc ( 1 ) is not axial. 
   
   
       4 . Adaptor device according to any one of the preceding claims, characterised in that the through hole ( 2 ) of the disc ( 1 ) is delimited by an annulus subdivided into a plurality of sectors, preferably equal to each other, more preferably equal to four. 
   
   
       5 . Adaptor device according to  claim 4 , characterised in that at least one part of said one or more tongues ( 4 ) are aligned with one or more respective radii of the through hole ( 2 ) passing through respective ends of one or more sectors of the annulus. 
   
   
       6 . Adaptor device according to any one of the preceding claims, characterised in that said one or more tongues ( 4 ) are integrally coupled to the disc ( 1 ). 
   
   
       7 . Adaptor device according to any one of  claims 1  to  5 , characterised in that said one or more tongues ( 4 ) are housed in corresponding housing seats ( 3 ) placed on a surface of the disc ( 1 ). 
   
   
       8 . Adaptor device according to any one of the preceding claims, characterised in that it further comprises a cover ( 7 ) provided with a through hole ( 8 ). 
   
   
       9 . Adaptor device according to  claim 8 , characterised in that the cover ( 7 ) comprises at least one pin ( 9 ) capable to insert into a corresponding notch of the disc ( 1 ), so that the through hole ( 2 ) of the disc and the through hole ( 8 ) of the cover are aligned.