Assembly type GRG cell ceiling steel skeleton design and installation structure convenient to disassemble and assemble

The assembly type GRG cell ceiling steel framework design and installation structure comprises a main keel, an auxiliary keel, an upper sliding block and a lower sliding block, sliding grooves are formed in the two sides of the main keel respectively, the sliding grooves are arranged in the length direction of the main keel, an extension plate is arranged on one side of an opening of each sliding groove, the extension plates are fixedly connected to the main keel, and the upper sliding block and the lower sliding block are fixedly connected to the main keel. A plurality of fixing holes are formed in the extending plate, the lower sliding block is slidably connected into the sliding groove and provided with a first mounting groove, a second mounting groove is formed in the bottom of the first mounting groove, a spring is arranged in the second mounting groove, the other opposite end of the spring is connected with a buffering plate, the upper sliding block is arranged on the lower sliding block, and the lower