S-shaped perforated plate

Abstract

The invention discloses an S-shaped perforated plate and belongs to a building decoration and noise reduction material. The plate comprises a sound guiding plate, a sound absorption plate, a sound insulation plate and a side plate, a sound attenuation cavity is formed between the inner side of the sound guiding plate and the outer side of the sound absorption plate, and the inner side of the soundabsorption plate is connected with the sound insulation plate. S-shaped perforating holes and sound attenuation holes are formed in the sound guiding plate and the sound absorption plate correspondingly, and the sound guiding plate, the sound attenuation cavity, the sound absorption plate and the sound insulation plate are sequentially connected from outside to inside to from the S-shaped perforated plate. According to the S-shaped perforated plate, by forming the S-shaped perforating holes, the sound attenuation cavity, the sound attenuation holes and the like, sound resistance in the soundspreading process is increased, particularly sound enters the sound attenuation cavity and then is reflected many times, so that the sound intensity is further reduced, the effects of noise reductionand sound absorption are achieved, and the S-shaped perforated plate can be widely applied to occasions such as family cinemas, meeting rooms and living rooms.

Description

technical field [0001] The invention belongs to building decoration sound-absorbing materials, in particular to an S-shaped perforated plate. Background technique [0002] Urban noise seriously affects the normal life and personal health of urban residents. Urban noise mainly refers to traffic noise, factory noise, construction noise and social life noise. It has become one of the conspicuous urban environmental pollution problems. Usually, sound-absorbing materials are used to produce some sound-absorbing panels, sound-insulating walls, sound-absorbing nets and mufflers to control noise pollution, and some sound-absorbing materials are produced after foaming to improve product performance. At present, the foamed sound-absorbing panels sold on the market have unsatisfactory sound-absorbing effects, and cannot completely eliminate sound and prevent sound pollution. At the same time, the existing sound-absorbing panels lack a directional structure and are not designed for th...

AI Technical Summary

Problems solved by technology

At present, the sound-absorbing panels sold on the market after foaming are not ideal for sound attenuation, and cannot completely eliminate sound and prevent sound pollution.

At the same time, the existing sound-absorbing panels lack a directional structure and are not designed for the sound source, especially for some conference rooms, home theaters, living rooms and other occasions where the sound propagation direction is known. How to eliminate the sound and achieve the effects of noise reduction and sound absorption become a research hotspot

Images