Weight Adjustable Dumbbell

A weight adjustable dumbbell, comprising a dumbbell bar assembly, a dumbbell base and a plurality of dumbbell plates placed on two sides of the dumbbell base, wherein the dumbbell bar assembly comprises a plurality of synchronously rotatable hanging plates arranged adjacently, an end of each of the hanging plates is provided with an extruded hanging block;

• an end of each of the dumbbell plates is defined with a U-shaped groove where the hanging block is radically slidable, a bump is provided in the U-shaped groove, and the bump and a wall of the U-shaped groove define a limiting area therebetween, the hanging block is capable of sliding into the limiting area and being latched with the bump during the hanging block rotating in the U-shaped groove;
• the dumbbell bar assembly further comprises a dumbbell bar successively extending through the hanging plates and a handle tube sleeved on the dumbbell bar and rotatable relative to the dumbbell bar, the hanging plates are located on two sides of the handle tube in equal quantities, both end of the handle tube is connected to the adjacent hanging plates, respectively;
• and the handle tube is synchronously rotatable with the hanging plates;
• the dumbbell bar assembly further comprises a stop mechanism connected to one side of the handle tube, the stop mechanism comprises a first cap sleeved on the dumbbell bar and connected to the dumbbell bar, a stop plate received in one side of the first cap and rotatable relative to the first cap, and a stop component received in the first cap slidable along a radical direction of the first cap;
• the stop plate comprises a plurality of limiting latches evenly arranged along a periphery of the first cap, and the limiting latches are extruding to one side of the first cap, two adjacent limiting latches forms a limiting notch therebetween, and the handle tube is locked while the stop component slides into the limiting notch;
• a middle of the stop plate is defined with a through hole where the dumbbell bar extending through, a periphery of the through hole are defined with four first connecting recesses in communication with the through hole, the four first connecting recesses are evenly arranged in a crossed shape, one side of the handle tube is provided with two first limiting blocks, and the first limiting blocks can be latched into two of the first connecting recesses.