Quality detection device of metering instrument equipment

The invention relates to the technical field of quality detection devices, in particular to a quality detection device of metering instrument equipment, which comprises two concave seats, the two concave seats are symmetrically arranged, the tops of the two concave seats are both provided with supporting plates through screws, a top plate is arranged between the top ends of the two supporting plates through screws, and the top plate is provided with a plurality of supporting plates through screws. Bearings are installed at the top ends of the two supporting plates in a penetrating mode, a lead screw is inserted between inner rings of the two bearings in a close fit mode, the surface of the lead screw is sleeved with a first screw pipe in a threaded mode, and the surface of the lead screw is movably sleeved with a fixing pipe. Through the arrangement of the photoelectric sensor and the reflective mirror, the pipeline emitted by the photoelectric sensor irradiates in the reflective mirror, meanwhile, light is r