The utility model relates to the field of
grinding devices, in particular to a food detection sample
grinding device. According to the technical scheme, the device comprises a driving motor, a crushing blade mounted at the lower end of the driving motor, a
vibration motor arranged at the lower end of the crushing blade, a coarse crushing
assembly and a fine crushing
assembly; the coarse crushing
assembly comprises an upper shell, a sliding frame, a sliding cover, a sliding block, a magnetic attraction buckle and a hollow plate; the fine crushing assembly comprises a lower shell, a
cushion column, a
grinding disc, a sleeve, a limiting strip, a
sieve hole, a sliding groove, an arc-shaped sliding plate, a limiting groove, a hasp and an anchor block, by arranging the coarse crushing assembly and the fine crushing assembly, the device can quickly crush a food detection sample into particles with relatively large sizes, and the particles directly fall into a secondary grinding area; and finer grinding can be completed in a relatively short time, so that the time required by grinding is shortened on the whole, and the
ground food detection sample can be taken out more easily.