Exercise bicycle with cushion easy to disassemble and assemble

The exercise bicycle comprises a body, a handle is fixed to the front end of the body, a supporting rod is fixed to the top end of the body, a lifting rod is connected to the interior of the top end of the supporting rod, the cushion is arranged at the top end of the lifting rod, and a connecting base is fixed to the bottom end of the cushion. The connecting base is connected with the lifting rod in a clamped mode, and a disassembling and assembling mechanism is arranged between the connecting base and the lifting rod. By designing the connecting groove, the connecting block, the clamping groove, the clamping buckle, the limiting groove, the limiting block and the operating block, the cushion can be rapidly detached, meanwhile, by means of the designed positioning hole, the screw hole and the positioning rod, when the cushion and the exercise bicycle are installed, the limiting block can be further limited and fixed, and the cushion can be conveniently detached. Compared with the prior art, the body-building