Adjustable leisure chair

The invention relates to the technical field of leisure chairs, in particular to an adjustable leisure chair. The bottom of the backup plate is fixedly connected with a third column; the back surface of the backup plate is rotatably connected with a second column; the sitting plate is fixedly connected with a third gear; the second column is fixedly connected with a fourth gear; a second rack is rotatably connected to one end of each sixth rod, a base is arranged below the seat plate, two supporting rods are fixedly connected to the base, first racks are fixedly connected to the top surfaces of the supporting rods, two fixing plates are fixedly connected to the bottom surface of the seat plate, and the two fixing plates are slidably connected with the two supporting rods respectively. The purpose that when a user enlarges the included angle between the backup plate and the sitting plate and lies on the backup plate, the chair can be kept stable is achieved, and the problem that the chair leans backwards and t