Dynamic circulating chain code checking device for belt weigher

A belt weigher dynamic circulating chain code verification device comprises a belt weigher, a circulating chain code verification device and a lifting assembly. Compared with the prior art, the device has the advantages that the output shaft of the driving motor drives the driving bevel gear to rotate, the driven bevel gear meshed with the driving bevel gear can drive the first rotating shaft to rotate, and then the driven bevel gear is driven to rotate through the driving bevel gears at the two ends of the first rotating shaft, so that the second rotating shaft rotates; a second rotating shaft rotates to drive first bevel gears at the two ends of the second rotating shaft to rotate, a second bevel gear meshed with the first bevel gears drives a screw to rotate, a movable ring in threaded connection with the screw can move up and down and drives a frame body of the circulating chain code checking device to move up and down through a connecting rod, and when checking is needed, the movable ring moves downwards