The utility model relates to the technical field of concentrated yoghourt production, in particular to a yoghourt acidity
titration device which comprises a top plate, the bottom of the top plate is fixedly connected with a bottom plate, the top of the top plate is provided with a
titration mechanism, and the surface of the bottom plate is provided with a testing mechanism; the
titration mechanism comprises a top cover, the top of the top cover is fixedly connected with an acid liquor storage
barrel, the outer surface of the acid liquor storage
barrel is provided with a scale groove, the top of the top cover is provided with a micro cylinder, the bottom of the micro cylinder is fixedly connected with a disc, and the disc extends into the acid liquor storage
barrel and is in sliding connection with the acid liquor storage barrel; by arranging the titration mechanism, a gear can be driven to rotate through a driving motor, a rack, an annular sleeve and a
brush are driven to circularly move up and down through the meshing effect between the gear and the rack, and dust on the surface of the acid liquor storage barrel can be removed through the up-down circular movement of the
brush; the condition that the reading accuracy of the scale value is reduced due to the existence of dust is avoided, and the practicability of the acidity titration device in use is improved.