▎ 摘　　要

NOVELTY - The board has a set of foam board modules (1) connected to each other by a connecting portion (2). Each foam board module is provided with an inner hollow cavity. Vertical inner surface walls of the foam board modules are attached with a supporting module. The connecting portion includes a splint (202), two push plates (201) arranged between two adjacent splints, and a spring (204) that is fixedly connected between the push plates. A bottom of first sealing groove (8) is in communication with a compression cavity (7) in the splint through an air passage. A bottom of second sealing groove (11) is connected to an inner extrusion cavity (7) of the splint (202) through the air passage. Two ends of each push plate are respectively hinged with a sliding block (6). A side of a clamping block (15) close to the foam board module is adhered with a rubber block (203). The clamping block fixes the foam board modules. USE - Large-size graphene foam board. ADVANTAGE - The board can be conveniently and safely transported with reduced number of resources, and can be quickly loaded and unloaded to save time and labor effort during transportation process, while improving fixing strength between the foam board modules. DESCRIPTION OF DRAWING(S) - The drawing shows a front sectional view of a large-size graphene foam board. Foam board modules (1) Connecting portion (2) Sliding block (6) Compression cavity (7) Inner extrusion cavity (7) Sealing grooves (8,11) Clamping block (15) Push plates (201) Splint (202) Rubber block (203) Spring (204)