Secondary fixing device for drainage tube

The utility model provides a secondary fixing device for a drainage tube. The fixing device can replace the existing method for secondarily fixing the drainage tube by using a medical adhesive tape or a fixing patch. The arranged fixing belt can be fixed on the waist, abdomen, limbs and other parts of the patient in a surrounding manner; the drainage tube is fixed in the drainage tube accommodating through groove through the arc-shaped elastic plate and the elastic pressurizing layer, so that the drainage tube is secondarily fixed; the drainage tube fixing assembly can be conveniently and rapidly disassembled from the fixing band through the combination of the mounting base and the connecting column, and when wound imbibition dressing or wound gauze is replaced, the wound can be fully disinfected by disassembling the drainage tube fixing assembly, and the imbibition dressing or the wound gauze can be conveniently replaced; meanwhile, the arranged elastic hose can prevent the drainage tube from being bent at t