Full-automatic detachable vacuum grain storage barrel

The full-automatic detachable vacuum grain storage barrel comprises an upper barrel body, a lower barrel body and an upper cover, an upward clamping groove is formed in an inner cavity in the bottom of the upper barrel body, an inward lock catch protruding strip is arranged at the bottommost end of the clamping groove, an outward protruding locking strip is arranged on the upper portion of the lower barrel body, and the protruding locking strip of the lower barrel body can be elastically clamped into the clamping groove of the upper barrel body and abuts against the inner portion of the lock catch protruding strip. A lower sealing ring is arranged between the convex locking strip of the lower barrel and the clamping groove of the upper barrel; the rear side of the top end of the upper barrel is rotatably connected with the upper cover through an upper cover rotating shaft, the upper cover comprises an upper cover top layer and a lower cover bottom layer, a cavity interlayer is arranged between the upper cover