Core structure of pruning shears and pruning shears with core structure

The utility model relates to a core structure of pruning shears and the pruning shears with the core structure. The core structure comprises a motor assembly, a center support, a large gear shaft with an inner end portion and an outer end portion, a large gear, a first eccentric wheel and a second eccentric wheel which are installed on the large gear in a 180-degree staggered manner, and a cutting blade assembly with an upper blade and a lower blade, wherein the motor assembly is installed on the center support, the inner end portion of the large gear shaft is fixedly installed in the center support, the large gear sleeves the large gear shaft and is driven to rotate through the motor shaft of the motor assembly, and the first eccentric wheel and the second eccentric wheel are driven by the large gear to drive the upper blade and the lower blade of the cutting blade assembly to move back and forth in the 180-degree staggered manner; the outer end portion of the large gear shaft penetrates through the large gear, the first eccentric wheel and the second eccentric wheel and then stretches outwards. The core mechanism further comprises a large gear shaft supporting plate, wherein the large gear shaft supporting plate is fixedly connected onto the center support and supports the outer end portion of the large gear shaft.