Segmented differentiated knitted elastic outer cover and earphone pad

The utility model discloses a segmented differentiated knitted elastic outer cover and an earphone pad, comprising an elastic knitted sleeve main body, the elastic knitted sleeve main body is in a sleeve shape and is provided with openings at two ends, the elastic knitted sleeve main body comprises a first elastic segment, a second elastic segment and a third elastic segment in sequence along the length direction of the sleeve, the elasticity of the first elastic section and the third elastic section is larger than that of the second elastic section. The diameter of the first elastic section is smaller than that of the second elastic section. Therefore, all the parts are wrapped, assembled and connected through all the sections, elastic force needed by wrapping and positioning of all the parts is taken into consideration in cooperation with the elastic structures of all the sections, the phenomenon that an assembled product is loosened or deviated is avoided, all the parts can be disassembled, assembled, clea