Multifunctional noise-abatement equipment for rooms

Abstract

The invention discloses a multifunctional muffler device for rooms, which is characterized in that the device comprises a slablike case composed of a bracket and muffling material covered on the bracket, the case is internally provided with a longitudinal partition board and a transverse partition board, the longitudinal partition board divides the interior space of the case into a front and a rear passage mutually communicated, the transverse partition board delaminates the front and the rear passage, the front and rear walls of the case are respectively provided with an air inlet and an airoutlet in the form of strips, the air inlet and the air outlet are respectively communicated with the front and the rear passage of the case. As the multifunctional muffler device of the invention adopts the muffling material and ventilation structure, the device can not only have the effects of noise insulation and noise elimination but also have the effect of natural ventilation when the deviceis installed on a window and other glass windows are closed, thereby solving the problem of no meeting noise insulation, noise elimination and natural ventilation in the prior art simultaneously.

Description

technical field The invention belongs to a noise reduction device, in particular to a multifunctional noise reduction device used in a room. Background technique In modern cities and on both sides of roads (roads and railways), noise has long become a public nuisance. With the improvement of people's living standards, people have put forward higher requirements for indoor living and working environments. Among them, sound insulation, noise reduction, and noise reduction issue has received increasing attention. In terms of room sound insulation and noise reduction, it is mainly the sound insulation and noise reduction of windows. At present, the measures taken for sound insulation of windows are to use the property of window glass itself to reflect sound waves for sound insulation. In order to further enhance the sound insulation effect, windows can also be made into laminated glass. It is a contradiction between the sound insulation function of the window and its ventilati...

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Problems solved by technology

The thicker the felt, the greater the noise reduction coefficient, but the poorer its air permeability

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