▎ 摘　　要

NOVELTY - The cup has a main body provided with a phase change layer, a graphene layer, an inner layer and an outer layer of phase change layer. A graphene adhesive is fixed between the phase change layer and the inner layer, where thickness of the phase change layer is reduced from top to bottom in orderly manner. A wall of the outer layer of phase change layer is provided with a first card block. A wall of the phase change layer is provided with a second card block, where position of the first card block is matched with the second card block. The main body is formed with an interval cavity. USE - Flexible multilayer graphene composite thermostatic layer cup. ADVANTAGE - The cup reduces temperature of the water in quick manner. The cup is safe and reliable to use, and has high cooling efficiency. DESCRIPTION OF DRAWING(S) - The drawing shows a sectional view of a flexible multilayer graphene composite thermostatic layer cup.