Telescopic rubber belt conveyor

The invention belongs to the technical field of mining equipment, and particularly relates to a telescopic belt conveyor which is characterized in that longitudinal beams between at least one group of two adjacent upper carrier rollers between upper carrier rollers at the upper end of a rack on a traditional belt conveyor are telescopic beams, and each telescopic beam is of a two-way rectangular telescopic rod structure; the telescopic beam comprises two telescopic inner beams and a telescopic beam outer cylinder, the two ends of the telescopic beam outer cylinder are sleeved with the telescopic inner beams respectively, and the telescopic inner beams extend into the telescopic beam outer cylinder from the two ends of the telescopic beam outer cylinder and are in sliding connection with the telescopic beam outer cylinder. The two rows of lower longitudinal beams between the supporting rods below the telescopic beams are arranged in a discontinuous mode, the discontinuous part is replaced by the two lower tele