A telescopic function integrated ceiling light finished returning groove

The present invention discloses a refined light returning groove an integrated ceiling a telescopic function, comprising a back light lamp vessel (1), screws (2), the pipe (6), the screw (2) fixed to the upper end of the top surface; a back light lamp trough (1) side is provided on both sides with a row of screw holes, through holes connected by the screw (2) lower end; square tube (6) is provided with a hole above a below the hole corresponding to a hole provided at the two, by a hole, connected to the second hole (1) below the screw (2) light returning groove, secured by a nut (3); (1) both back light side facing the vertical groove is provided with a flexible spring (5), (3) is fixed by a nut; full structure is formed on the side of the keel square tube (6) is fixed to conventional suspended ceiling. The present invention solves the ceiling stretching cracking quality defects, does not affect the aesthetic design of the ceiling; can be mounted directly on site, and cost-saving period, eliminating the telescopic horizontal ceiling internal forces.