Split mounting type sliding rail and butt joint connecting structure thereof

The utility model discloses a split mounting type sliding rail and a butt joint connection structure thereof, and the butt joint connection structure comprises a fixed plate which is used for being connected with a truss; the joint fixing plate is arranged on the bottom surface of the fixing plate; a first clamping jaw and a second clamping jaw which are oppositely arranged are arranged on the connector fixing plate, and a connector mounting groove is defined by the first clamping jaw and the second clamping jaw; the sliding rail connector is arranged in the connector installation groove, and the outer side face of the sliding rail connector is fixed to the first clamping jaw and the second clamping jaw. The slide rail joint is cylindrical, and two ends of the slide rail joint are opened to form slide rail sockets; a connector sliding groove is formed in the center of the lower wall of the sliding rail connector, and the connector installation groove and the connector sliding groove are communicated with a sl