Adjustable roller skate boot device

A roller skate boot device comprises:

• a base seat,
• a first plate mount disposed on the base seat,
• a second plate mount disposed on the base seat,
• a third plate mount disposed on the base seat,
• a plurality of positioning plates disposed on the base seat,
• four connecting plates,
• a positioning block,
• a boot casing having four boot plates,
• the first plate mount having a first rail, a plurality of first grooves and a plurality of round holes,
• the second plate mount having two second rails, a plurality of second grooves, a center hole and a spacing,
• the third plate mount having a third rail, a plurality of third grooves and a plurality of circular holes,
• each of the positioning plates having a rectangular hole, a recess and two C-shaped notches,
• each of the boot plates having a boot wall, a round flange, a plurality of through holes and a plurality of slots formed on the boot wall,
• each of the connecting plates having a retaining ring, an inserted hole and two C-shaped grooves,
• the positioning block having four protruded flanges,
• each of the positioning plates engaging with each of the corresponding rails via each of the corresponding recesses,
• each of the inserted holes receiving each of the corresponding rails,
• each of the connecting plate fastened on each of the corresponding rails,
• each of the round flanges inserted in the corresponding C-shaped notches,
• each of the protruded flanges inserted in each of the corresponding rectangular holes,
• each of the connecting plates disposed between two corresponding boot plates,
• the positioning block fastened on the second rail,
• the boot plate fastened on the corresponding plate mount.