Convenient-to-move anti-falling automatic metering drainage device

The invention relates to the technical field of medical apparatus and instruments, and discloses a convenient-to-move anti-drop automatic-metering drainage device, which comprises a drainage assembly and a metering bag for accommodating the drainage assembly, the front surface of the metering bag is a transparent shell, the metering bag is provided with a metering scale, a controller and a display panel, and the controller is provided with a summation module for counting the amount of liquid; the device further comprises a connecting clamping block which is arranged on the side, away from the drainage bag, of the drainage tube, a clamping groove used for fixing the connecting clamping block is formed in the top of the metering bag, a trigger is arranged in the clamping groove, the trigger is started when the connecting clamping block is inserted into the clamping groove, the trigger sends a signal to the controller, and the controller starts the summation module after receiving the signal. And when the connec