Rapid adjusting mechanism for exoskeleton and modular backboard device

The invention relates to a quick adjusting mechanism for exoskeleton and a modular backboard device, and the quick adjusting mechanism comprises an adjusting assembly, the adjusting assembly comprises an adjusting unit, the adjusting unit is movably arranged on a mounting plate, the adjusting unit is driven to be away from the first end of a backboard, the length of the backboard is increased, the adjusting unit is driven to be close to the first end of the backboard, and the length of the backboard is decreased; an elastic assembly comprises an elastic unit capable of buffering pressure and a connecting unit capable of being quickly disassembled or quickly fixed, a quick disassembly groove is formed in the back plate, one end of the connecting unit is arranged on the elastic unit, and the other end of the connecting unit is arranged on the elastic unit. And the other end of the connecting unit is detachably connected with the quick release groove, and the elastic unit is placed on the shoulder, so that the b