Patent ID: 7946460

Claim:
An interactive type of a balancing device including a backpack body for containing materials, left and right shoulder straps, a balancing device, a top end and a tail end of both the left and right shoulder straps being at least one of connected with the balancing device and detachably connected with the balancing device, said balancing device comprising: a lower assembly connected to the backpack body, the lower assembly including a baffle plate and a movable device which is installed in a hollow part of an interlayer of said baffle plate; and an upper assembly connected to the backpack body through at least one of a plastic or a metal plate, and supported by the lower assembly, wherein the left and right shoulder straps move along a rotating assembly of the upper assembly; wherein the moveable device is installed in the hollow part of the interlayer of the baffle plate, and includes at least one rolling wheel and two left and right fixed wheels, one each set on both the left and right sides of the rolling wheel, further wherein a sliding belt is driven by the left and right shoulder straps to move along the rolling wheel and the fixed wheels within a plurality of positioning component channels.