Abstract: The present invention relates to the field of outdoor appliances, in particular to a compressed sponge self-inflating cushion. The self-inflating cushion of the present invention has a wide range of applications, and can be used both indoors and outdoors, and a sponge automatically absorbs air, so that automatic inflation is achieved. There is no complicated electronic circuit inside, so there is no need to worry about whether an inflatable cushion body cannot be inflated due to electric leakage or insufficient power supply. The surface of the sponge is provided with a plurality of parallel folding grooves for convenient folding and winding, and thus a user can conveniently wind up the inflatable cushion body.

Abstract: Disclosed is a filter plate for a plastic processing apparatus, including: V-shaped grooves equidistantly formed in a plane of a mesh plate of the filter plate, V-shaped convex structures between adjacent V-shaped grooves. Filter holes having a predetermined aperture are provided on the bottom of the V-shaped grooves, and the side surfaces of the V-shaped convex structures. The top ends of the V-shaped convex structures are not provided with holes, and the outermost outer side of the V-shaped convex structure is facing downward without being provided with holes. The present invention increases the filtering area by 3-4 times without changing the aperture of filter hole, effectively extends the change cycle of filter during plastic production, and reduces waste of raw materials and the frequency of replacing filter plate during production and the labor intensity of the operators, which is beneficial to production safety and improvement of economic efficiency.