Abdominal cavity drainage tube

The utility model discloses an abdominal cavity drainage tube. Abdominal cavity drainage tube, a reinforced protective layer is arranged on the inner wall of the abdominal cavity drainage tube; the outer surface of the abdominal cavity drainage tube is connected with a cleaning brush in a pressing manner; a water outlet plate is fixedly connected to the surface of the left end of the cleaning brush; the outer surface of the water outlet plate is fixedly connected with a fixed box; a sealing cover is in threaded connection with the interior of the upper left side of the fixing box through a first threaded hole. A liquid storage cavity is formed in the fixed box; the surface of the lower end of the liquid storage cavity is in compression connection with an extrusion block through a buffer pad; a fixing box is slidably connected to the outer surface of the extrusion block, a guide rod is fixedly connected to the surface of the lower end of the middle of the extrusion block, the lower sideof the guide rod is slid