The invention discloses a device convenient to install and capable of automatically replacing an infusion
bottle. The device comprises a
machine body, an annular operation cavity with a downward opening is formed in the side, away from the axis, of the
machine body, a rotating cavity is formed in the upper side of the annular operation cavity, the rotating cavity communicates with the annular operation cavity, and an annular cavity is formed between the rotating cavity and the annular operation cavity. According to the invention, an infusion
bottle is fixed and clamped, meanwhile, the liquid level of the infusion
bottle is monitored in real time through a
liquid level sensor, a clear logic thought is adopted to control the switching of the working states of power devices and complete intelligent infusion bottle replacing, the
workload of
medical staff when infusion patients are excessive is reduced, meanwhile, restlessness caused by the fact that the infusion bottles of the patients are not replaced in time can be avoided, treatment of illness conditions is facilitated, meanwhile, some other negative conditions caused by emotion problems of the patients can be avoided, and social stability is facilitated.