▎ 摘　　要

NOVELTY - The utility model claims an assembly type water tank using graphene heating film for heat preservation, comprising: a water tank main body, a plurality of graphene heating film and an insulating layer, the plurality of graphene heating film is attached to the outer surface of the water tank main body; the insulating layer is fixed on the outer surface of the graphene heating film; each graphene heating film is provided with a first plug module and a second plug module; the first plug module and the second plug module are distributed diagonally; the adjacent graphene heating film on the same surface of the water tank main body is integrally connected by the first plug module and the second plug module. The utility model realizes the electric connection between the graphene heating film through the first plug module and the second plug module; the current flows from one graphene heating film to the other graphene heating film; the same surface of the water tank main body only needs to be connected with a group of power supply lines; no need to connect the wiring end of each graphene heating film with the external power supply; It not only reduces the wiring, but also is convenient for the construction of the graphene heating film.