Carbon fiber fire pump impeller

The utility model provides a carbon fiber fire pump impeller which comprises an impeller body, a limiting groove is formed in the surface of the inner ring of the impeller body, a bottom plate is arranged at one end of the limiting groove, a connecting hole is formed in the surface of the bottom plate, a fixing bolt penetrates through one end of the connecting hole, and an inner pipe is connected to one end of the limiting groove. A limiting block is arranged on the surface of the outer ring of the inner pipe, a threaded hole is formed in the surface of one side of the limiting block, a positioning groove is formed in the surface of the inner ring of the inner pipe, a fixing groove is formed in the surface of the impeller, and a reinforcing rib is embedded into one end of the fixing groove. According to the carbon fiber fire pump impeller, through the arrangement of the impeller and the inner pipe, when the carbon fiber fire pump impeller is used, the density of the impeller made of the carbon fiber composite