Embedded sleeve assembly for track fastener

The utility model discloses a pre-embedded sleeve assembly for a rail fastener, which comprises a sleeve and a screw spike, the sleeve assembly assembles the sleeve and the screw spike together and pre-embeds the sleeve and the screw spike in a sleeper, when the fastener is fixed, the fastener is fixed by connecting a nut and the screw spike, and the pre-embedded sleeve assembly is used for preventing the screw spike from slipping off and not exposing a threaded section. The limiting structure is arranged between the screw spike and the sleeve to prevent the screw spike from sliding off, and meanwhile, in order to prevent the screw spike from rotating when the nut is tightened, the anti-rotating structure is arranged between the screw spike and the sleeve to facilitate fixed installation of the fastener; due to the fact that the casing pipe and the screw spike are combined together, integrity is good, installation and connection are convenient, and the situation that the embedded casing pipe is damaged by ver