Edgewise compressive testing device of loose tube for optical cable

The invention discloses an edgewise compressive testing device of a loose tube for an optical cable. The edgewise compressive testing device comprises a base, a left upright post, a right upright post, a cross bar, a lifting beam, an upper pressure plate and a lower pressure plate, wherein the cross bar is bridged to the top ends of the left upright post and the right upright post; two ends of the lifting beam are arranged on the left upright post and the right upright post respectively and are located between the cross bar and the base; an upper shaft sleeve is fixed on the lower surface of the lifting beam; an upper bolt is embedded into through holes of an upper connection shaft and the upper shaft sleeve; an adjusting plate is arranged at the upper part of the lower pressure plate; a semi-convex ball part is arranged on the lower surface of the adjusting plate; a semi-spherical groove is formed in the upper surface of the lower pressure plate; and the semi-convex ball part of the adjusting plate is embedd