Elastic module unit, elastic cushion, and furniture

An elastic module unit configured for assembling into an elastic cushion (3), the elastic module unit (1) comprises a fixed base plate (4) and a plurality of elastic modules (5) disposed on the fixed base plate (4);

• wherein mutually opposite splicing side edges (6) of the fixed base plate (4) are respectively formed with first connecting structures (7) configured to splice together the fixed base plates of the plurality of elastic module units (1) so that the plurality of elastic module units (1) are assembled into an elastic support layer (31);
• wherein a side edge of the fixed base plate (4) is provided with a second connecting structure (8) configured to releasably connect an edge fastening device (9) which releasably connects a pad layer (2) of the elastic cushion (3) with the second connecting structure (8), such that the elastic cushion (3) can be formed as an elastic cushion with fully opened sides by means of the edge fastening device (9).