A kind of windproof and soundproof board

Abstract

A windproof and sound-insulating panel, comprising a front panel body and a rear panel body arranged side by side, a number of front sound holes are opened on the front panel body, the front sound holes penetrate the front of the front panel body, and each front sound hole is connected with a front volume cavity, the front cavity runs through the back of the front plate, and the back plate is provided with a number of rear sound holes corresponding to the front sound holes, the rear sound holes run through the back of the rear plate, and each rear sound hole is connected to a The rear cavity, the rear cavity runs through the front of the rear plate body, the front cavity and the rear cavity are correspondingly connected to form a cavity, and sound-absorbing cotton particles are arranged in the cavity, and the volume of the sound-absorbing cotton particles is smaller than the volume of the cavity. The invention provides a windproof and sound-insulating board, which can achieve the effect of sound insulation and micro-ventilation in normal times, and realize the effect of windproof when the wind blows.

Description

technical field [0001] The invention relates to the technical field of sound insulation, in particular to a windproof and sound insulation board. Background technique [0002] It is well known that functional equipment installed in cement buildings or factory workshops will emit relatively loud noises, and it is common for people to install equipment with relatively loud noises and temporary work sheds outdoors near households; in order to reduce noise interference, usually in A sound insulation board is installed near the equipment "with or without a ceiling". The sound insulation board can reduce the noise and reduce the interference caused by the resonance frequency of the sound wave. The known sound insulation board has the difference between the air sound and the vibration sound. The main sound insulation structure used is It is realized by using blind holes of different apertures or reducing the density of objects, among which the more common ones are single light damp...

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Problems solved by technology

[0003] However, the above-mentioned sound insulation panels have sound insulation effects but lack micro-ventilation effects during use, such as temporary sheds on construction sites, temporary dormitories for workers in field construction, and protection equipment from rain and ventilation. These buildings not only need to have better sound insulation effect, it is also necessary to have a ventilation function and to avoid the entry of dust brought by strong winds

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