Blocking assembly and conveying device

The invention discloses a blocking assembly and a conveying device. The blocking assembly comprises a driving piece, a mounting piece and a blocking piece, wherein the mounting piece comprises a mounting plate, a support arranged on the mounting plate and a hinge shaft arranged on the support, and the two ends of the mounting plate are used for being connected with two oppositely-arranged conveying rails; the blocking piece comprises a connecting end and a hinging end which are connected; the driving piece penetrates through the mounting plate to be connected with the connecting end, the hinging end is hinged to the support, the driving piece is used for driving the connecting end to move around a hinging shaft, and the hinging end is used for blocking materials moving along the conveyingrails when the connecting end is arranged at a first position relative to the mounting plate; and the driving piece drives the connecting end to move away from the mounting plate until the hinging endis separated from the mat