Light sound absorption and insulation honeycomb sandwich panel and mounting method thereof

The invention relates to the technical field of green buildings, in particular to a light sound absorption and insulation honeycomb sandwich panel which comprises a first connecting assembly, a second connecting assembly, a first connecting piece, a mounting piece arranged on the first connecting piece, a clamping piece arranged in the mounting piece and an auxiliary piece arranged on the clamping piece, the inserting rod piece is arranged on the second connecting piece, a positioning piece is arranged on the inserting rod piece, a locking piece is arranged on the inserting rod piece, the inserting rod piece corresponds to the mounting piece, so that the second clamping rod is inserted into the mounting groove, and at the moment, the clamping barrel is driven to rotate in the clamping groove and the auxiliary groove under the extrusion of the arc-shaped surface of the conical part; and under the limiting of the locking piece, the limiting of the first clamping rod, the conical part and the second clamping rod