Patent ID: 7585260

Claim:
A multifunctional dumbbell assembly comprising: a dumbbell body and a handle strap which is detachably connected to the dumbbell body, wherein the dumbbell body includes a handle, a first head and a second head, the heads are fixed to the opposite ends of the handle respectively; the handle strap includes a strap and two connectors which are connected to the opposite ends of the strap respectively. characterized in that each of the first head and the second head includes: an end cover covering an end of the dumbbell body; a first coupling member having a through hole and a cavity, an arc groove being farmed in the cavity; and a second coupling member having a clutch block at one end, the shape of which is complementary to that of the cavity in the first coupling member, further having connector attachment portions, the second coupling member being also provided with a through hole, wherein the connector includes a partial-circle outer ring and a U-shaped opening, the first connector attachment portion is different in diameter from the second connector attachment portion, the U-shaped opening is engaged with the first connector attachment portion, and the partial-circle outer ring is engaged with the second connector attachment portion.