Guide rail butt joint assembly and guide rail

The utility model discloses a guide rail butt joint assembly, and relates to the technical field of guide rail butt joint, the guide rail butt joint assembly comprises a butt joint socket and a butt joint plug, the butt joint socket is used for being fixedly connected with a first guide rail, the butt joint socket is provided with a plug-in groove, and the butt joint socket is internally provided with at least one limiting groove; the butt joint plug is used for being fixedly connected with the second guide rail, the butt joint plug is provided with an inserting block capable of being inserted into the inserting groove, the inserting block is provided with at least one sliding groove, a limiting block is movably arranged in each sliding groove, the limiting blocks can reciprocate in the extending direction of the sliding grooves, and each limiting block is fixedly connected with the inserting block through an elastic piece; the utility model further discloses a guide rail which comprises a plurality of guide