Compression-resistant and heat-resistant wire and cable structure for rail transit

The invention relates to the technical field of rail transit, and discloses a compression-resistant heat-resistant rail transit wire and cable structure which comprises three cable cores, the outsides of the three cable cores are all connected with a flame-retardant filling layer in a sleeving mode, and the flame-retardant filling layer is sleeved with an armor layer. The cable comprises an armor layer, four supporting frames are fixedly installed outside the armor layer, compression-resistant metal sheets are fixedly installed at the tops of the supporting frames, the bottoms of the four compression-resistant metal sheets are fixedly connected with a heat insulation layer, a high-temperature-resistant layer is fixedly installed on the inner side of the heat insulation layer, and cable rubber is fixedly installed between the high-temperature-resistant layer and the supporting frames. According to the compression-resistant and heat-resistant electric wire and cable structure for the rail transit, a positioning insertion rod is pushed to be inserted into a positioning groove under the telescopic return action of a spring to fix an incoming wire of a second fastening ring, on the contrary, a pull ring is pulled to separate the positioning insertion rod from the positioning groove, so that disassembly of a combined cable can be realized, and combined fixation between cables is facilitated; and the phenomenon of cable winding is avoided.