Height adjuster for exhibition cabinet

The utility model discloses an exhibition showcase height adjuster which comprises a showcase, the bottom face of the showcase is fixedly connected with one end of an adjusting assembly, the adjusting assembly is clamped in an adjusting groove formed in the top face of a fixing base, the other end of the adjusting assembly is installed on the inner bottom face of the adjusting groove, and limiting grooves are symmetrically formed in the inner wall of the adjusting groove. Adjusting assemblies are clamped in the limiting grooves respectively; supporting rods are symmetrically and fixedly connected to the top face of the display cabinet, the top face of the display cabinet makes contact with the bottom face of a transparent protective cover, the top face of the transparent protective cover is fixedly connected with the bottom face of a connecting plate, positioning holes are symmetrically formed in the connecting plate, the supporting rods are clamped in the positioning holes respectively, and positioning groov