Patent ID: 7708245

Claim:
A multi-purpose vacuum suction apparatus comprising: a vacuum suction plate unit ( 30 ) comprising a disc-shaped suction plate ( 31 ) with a flat bottom face, a cylindrical multi-purpose connector ( 33 ) projecting from the center of the top of the suction plate ( 31 ), the multi-purpose connector ( 33 ) having a locking ridge ( 33 A) formed along and projecting from the periphery of the multi-purpose connector ( 33 ), a central vertical hole ( 33 B) coaxially formed in the multi-purpose connector ( 33 ), and a spring anchoring lug (S) provided on the top of the suction plate ( 30 ) at a side of the multi-purpose connector ( 33 ); a lower abutment ( 40 ) comprising an annular base ring ( 41 ) stuck fast to the peripheral area of the top of the suction plate ( 30 ), a cylindrical wall ( 42 ) projecting vertically upward from the peripheral edge of the base ring ( 41 ), and a plurality of inclined operating indentations ( 43 ) formed along the top of the cylindrical wall ( 42 ) and equally spaced from each other; an suction plate operating member ( 50 ) comprising a cylindrical wall ( 51 ) fitted on the outer peripheral surface of the cylindrical wall ( 42 ) of the lower abutment ( 40 ), a plurality of indentation guide projections ( 52 ) formed on the internal periphery of the cylindrical wall ( 51 ) and equally spaced from each other in the peripheral direction, the indentation guide projections ( 52 ) being guided on the inclined surfaces of the operating indentations ( 43 ), respectively, a horizontal and flat upper base ( 53 ) integrally formed on the top end of the cylindrical wall ( 51 ) and having a through-hole (H) at the center thereof, and a plurality of connector supports ( 54 ) extending downward from the peripheral edge area of the through-hole (H) of the upper base ( 53 ), the lower ends of the connector supports ( 54 ) being engaged with the locking ridge ( 33 A); and an elastic member ( 60 ) surrounding all of the connector supports ( 54 ) projecting downward from the peripheral edge area of the through-hole (H) and arranged in a circular form, one end of the elastic member being anchored to a gap between two adjacent connector supports ( 54 ), and the other end being anchored to the spring anchoring lug (S) of the suction plate ( 31 ).