Holding device with multiple suction cup

Abstract

Provided is a holding device comprising a suction-type plate assembly including a plurality of resilient plates each having a concave shape and extended from its enlarged middle part, a shaft extended from the middle part and extended away from the plates, the shaft having external threads; a bracket passed by the shaft; a bell disposed between the bracket and the plate assembly, the bell passed by the shaft; and a nut. Pressing the plate assembly onto a surface and pressing the shaft onto the bell to urge its edge against an edge of an adjacent one of the plates will create a vacuum between the surface and the bell, and driving the nut to secure to the shaft to urge against the bracket and in turn to urge the bracket against the bell will maximize a sucking force created by the vacuum for adhering the plate assembly to the surface.

1 . A holding device comprising: 
 a suction-type plate assembly including a plurality of resilient plates each having a concave shape and extended from its enlarged middle part, and a shaft extended from the middle part and extended away from the plates, the shaft having external threads and an annular flange;    a bracket for holding one or more objects hung thereon being passed by the shaft; and    a nut member having internal threads,    whereby pressing the plate assembly onto a surface and pressing the shaft onto the plates will create a vacuum between the surface and the plate assembly, and driving the nut member to secure to the shaft and urge against the bracket will maximize a sucking force created by the vacuum for adhering the plate assembly to the surface.    
   
   
       2 . The holding device of  claim 1 , further comprising a bell disposed between the bracket and the plate assembly, the bell including an enlarged middle part and a bore through the middle part, and wherein the shaft extends through the bore prior to passing the bracket and securing to the nut member, and an edge of the bell is urged against an edge of an adjacent one of the plates in response to driving the nut member to secure to the shaft.  
   
   
       3 . The holding device of  claim 1 , wherein a pitch of the threads of either the shaft or the nut member is long.  
   
   
       4 . The holding device of  claim 1 , wherein the nut member further comprises two opposite flexible tabs formed on its internal shoulder, and the flange includes an arc-shaped surface and two opposite notches formed on the arc-shaped surface, the notches adapted to lockingly engage with the tabs at the end of driving the nut member to secure to the shaft.  
   
   
       5 . The holding device of  claim 1 , wherein the number of the plates is two.  
   
   
       6 . The holding device of  claim 1 , wherein the bracket is of L-shaped.