NOISE PROTECTION SCREEN OF RECREATIONAL ZONE Russian patent published in 2018 - IPC E01F8/00 E04B1/82 

FIELD: acoustics.

SUBSTANCE: invention relates to noise reducing structures. Noise protection screen of the recreational zone, containing the foundation base, the socle part, the supporting elements made in the form of transverse racks and longitudinal profiles, rear sound-absorbing panel, sound-absorbing panel, facial soundproof panel, protective visor. Screen is made of a closed perimeter wall structure with a height of at least 5 meters, it contains sections of gaps that form passages and passages to the territory of the recreational zone, which are blocked by soundproofing counter-screens, counter-locks. Sound-absorbing panel is represented by interlocked cavity-type cavity sound-absorbing modules of rectangular geometric shape with formed air cavities, formed by conjugated rear and side reflecting walls, a facial sound-transparent perforated wall and an upper closing cap. Air cavities of the bulk resonator sound-absorbing modules of the container type are filled with acoustic resonators of Helmholtz, formed by recycled hollow cavity bottle containers of PET-containers containing capacitive chamber and open threaded throat parts, spatially oriented in the direction of the facial sound-transparent perforated wall.

EFFECT: technical result is an increase in the recreational potential of residential areas.

14 cl, 26 dwg, 1 tbl