Interior decoration structure and railway vehicle with interior decoration structure

An interior decoration structure, located inside a vehicle body, the interior decoration structure comprising:

• a plurality of interior decoration components, the plurality of interior decoration components being spliced inside the vehicle body in sequence,
• wherein at least one pair of two adjacent interior decoration components are connected by an inserted-connected structure, the plurality of interior decoration components comprises an air supply opening component and an under-window wallboard, the under-window wallboard being located on a lower side of the air supply opening component, the air supply opening component being connected with the under-window wallboard by the inserted-connected structure;
• a heating cover plate, the heating cover plate being provided at a bottom of the under-window wallboard, and the heating cover plate being connected with the under-window wallboard by the inserted-connected structure, the heating cover plate is provided with a first insertion groove, the under-window wallboard is provided with a first insertion portion, the first insertion portion is inserted into the first insertion groove, and the first insertion groove and the first insertion portion form the inserted-connected structure between the heating cover plate and the under-window wallboard, the heating cover plate comprises a cover plate body and the first insertion plate provided on the cover plate body, the first insertion groove being surrounded between the first insertion plate and the cover plate body;
• and the bottom of the under-window wallboard forms a first insertion portion.