Novel three-way catalyst

The utility model relates to the technical field of three-way catalytic converters, in particular to a novel three-way catalytic converter which comprises a novel three-way catalytic converter body and a carrier catalyst layer, the two ends of the novel three-way catalytic converter body are fixedly connected with connecting circular plates, the two sides of the outer wall of the novel three-way catalytic converter body are fixedly connected with a plurality of connecting blocks, and the connecting blocks are fixedly connected with the carrier catalyst layer. A first threaded groove is machined in the inner wall of the connecting block. A user rotates a connecting screw rod through a tool, the connecting screw rod moves upwards along a first threaded groove of a connecting block, so that a fixing block is in contact connection with the connecting block, then the fixing block is pulled, the fixing block drives an arc-shaped block to move, and the arc-shaped block drives a supporting block to move; the mode tha