Waterproof heat insulation plug cord

The utility model discloses a waterproof heat insulation plug cord, which relates to the technical field of plug cords and comprises a plug cord body, a hoop movably sleeved on the plug cord body, a limit mechanism fixedly connected in the hoop and matched with the plug cord body for use, and a release paper ring connected to the outer side of the hoop in a surrounding manner. A fixed block is fixedly connected to one side of the hoop at the notch of the release paper ring, a movable block is movably inserted into the top of the fixed block, a connecting mechanism is fixedly connected between the movable block and the fixed block, a connecting block is fixedly connected to the top of the side, located on the hoop, of the movable block, and a nano adhesive tape adheres to the bottom of the connecting block. The plug cord is reasonable in structure, the hoop is moved on the surface of the plug cord body through the limiting mechanism, so that the position of the nano adhesive tape can be conveniently adjusted a