Case with dismountable draw rod type rolling wheel support frame

The utility model discloses a suitcase, in particular to a suitcase which can be freely disassembled and assembled and provided with removable draw-bar type a support bracket of roller wheels. The suitcase of the utility model comprises a draw bar, the support bracket, the roller wheels and a suitcase. The support bracket is a T-shaped bracket used for respectively supporting the back part and the bottom part of the suitcase; the draw bar is arranged at the top of the support bracket; two roller wheels are respectively arranged at two sides of the bottom part of the support bracket. The suitcase is provided with a top locking component and a bottom locking component which are independently produced. The top locking component is locked and matched with the top part of the support bracket while the bottom locking component is locked and matched with the bottom part of the support bracket; when the top locking component and the bottom locking component are released, the support bracket can be removed from the su