Block type joint chain ring with elastic buffering sleeve

The utility model relates to a block type joint chain ring with an elastic buffering sleeve and concretely relates to a block type joint chain ring used on a chain type scraper conveyer. The block type joint chain ring solves a problem that a bolt can be easily broken due to left-right or up-down play of a block and continuous bumping. The block type joint chain ring is structurally characterized by comprising a left half chain ring, a right half chain ring similar to the left half chain ring, a support block, a bolt and the elastic buffering sleeve, wherein the elastic buffering sleeve is embedded in the inner hole of the support block; the left and right half chain rings are embedded with each other via the support block; the elastic buffering sleeve is provided with a through hole; the inner wall of the elastic buffering sleeve is equipped with an annular groove; and the support block and the left and right half rings can be integrated via the bolt. The beneficial effects of the block type joint chain ring with the elastic buffering sleeve are that impact of the support block to the bolt can be reduced; and the inner diameter of the elastic buffering sleeve and the external diameter of the bolt are in interference fit, so motion of the support block can be entirely limited and damage to the bolt can be avoided.