Enema device for assisting ultrasonic evaluation of colorectal lesions

The invention relates to the technical field of enema devices, and discloses an enema device for assisting ultrasonic evaluation of colorectal lesions, the enema device comprises a lifting column, a hook is fixedly mounted at the bottom end of an extension part at the top end of the lifting column, and an enema liquid storage bag is arranged on the hook. Gas enters a gas cavity through a second extension pipe, enema liquid generates air pressure to enable a barrier plate to rotate around a fixed pin shaft, the enema liquid enters a mixing cavity, and the gas also enables the barrier plate to rotate around the fixed pin shaft and enter the mixing cavity, so that enema operation is performed; when enema liquid flows back, the enema liquid enters a mixing cavity through a liquid outlet through hole, the liquid can drive a blocking plate to rotate around a fixed pin shaft, the blocking plate is tightly attached to a partition plate, the liquid flows into a liquid storage bottle through a discharge pipe and is col