Patent ID: 8672287

Claim:
An outdoor umbrella, comprising: an awning frame; a supporting shaft supporting said awning frame; and an adjustable rotation base, which comprises: a base housing arranged to couple with said supporting shaft to support said awning frame in an upright manner, wherein said base housing comprises a plurality of bodies detachably coupled with each other to form said base housing, wherein each of said bodies has a filler cavity for filling with mass medium; and a plurality of transportation wheels rotatably provided at said bottom side of said base housing so as to facilitate easy transportation of said adjustable rotation base, wherein each of said bodies has a receiving cavity, wherein when said bodies are coupled with each other, said receiving cavities of said bodies form a support cavity, wherein said supporting shaft is detachably received at said support cavity to support said awning frame, wherein each of said bodies has an engagement tooth and an engagement slot, wherein when said bodies are coupled with each other, said engagement tooth of one of said bodies is engaged with said engaging slot of adjacent body, wherein said adjustable rotation base further comprises a base frame which comprises a plurality of frame members connected with each other to form a secure frame structure for accommodating said bodies, wherein each of said frame members has an elongated mid portion and two elongated side portions to define a frame platform, wherein each of said bodies further has an elongated engaging slot indently formed at said bottom side of said body, wherein said frame members are extended to bias against said bottom sides of said bodies in a vicinity of said engaging slots.