The invention relates to the technical field of medical infusion, in particular to an infusion device with an automatic liquid
medicine switching function, which comprises a liquid
medicine placing frame, a plurality of
medicine bags are arranged at the top of the liquid medicine placing frame, infusion assemblies are arranged at the bottoms of the medicine bags, and an auxiliary
assembly is arranged in the middle of the liquid medicine placing frame. The auxiliary
assembly is matched with the infusion
assembly, and a plurality of counterweight assemblies are arranged at the bottom of the liquid medicine containing frame. According to the infusion device with the automatic liquid medicine switching function, the multiple medicine bags are arranged at the top of the liquid medicine containing frame, stable hanging of the medicine bags is achieved through the combination of the hanging plate and the hook structure, falling is avoided, loads are evenly distributed, the bottoms of the medicine bags are connected with the infusion assembly through the liquid outlet pipes, and the infusion assembly is convenient to use. An
electromagnetic valve and a liquid medicine sensor are embedded in the liquid outlet
pipe, liquid medicine flowing is accurately controlled through the
electromagnetic valve, liquid level detection and state monitoring are achieved in cooperation with the sensor, and then automatic switching of multiple bags of liquid medicine and infusion safety guarantee are achieved.