Acoustic insulation screen which effectively reduces noise pollution in the surrounding space of high-speed railway running

Abstract

the present invention relate to the technical field of sound insulation, and discloses an acoustic insulation screen which effectively reduces noise pollution in the surrounding space of high-speed railway running, including an acoustic insulation base, wherein a first insertion board of the acoustic insulation screen is installed in the first slot of the acoustic insulation base; the rear side wall of the acoustic insulation screen is uniformly provided with a first sound absorbing hole, and the outlet end of the first sound absorbing hole and the inlet end of the second sound absorbing holeon the rear side wall of the sound absorbing plate located on the rear side of the acoustic insulation screen cavity are arranged in communication with each other; the outlet end of the second sound absorbing hole penetrates through the front side wall of the sound absorbing plate filled with the first sound absorbing cotton in the cavity and extends directly in front of the sound absorbing platecavity and is interconnected with the cavity of the sound absorbing cavity of the sound absorbing cavity mechanism composed of the sound absorbing cavity arranged in close arrangement; and a third sound-absorbing hole is formed on the front side wall of the sound-absorbing cavity filled with the second sound-absorbing cotton. The acoustic insulation screen which effectively reduces noise pollutionin the surrounding space of high-speed railway running solves the problem that the noise sound wave generated in the high-speed driving process of the high-speed railway radiates to the surrounding space and pollutes the surrounding space.

Description

technical field [0001] The invention relates to the technical field of sound insulation, in particular to a sound insulation screen that can effectively reduce noise pollution in the space around high-speed rail running. Background technique [0002] With the rapid development of my country's high-speed railway, high-speed rail noise pollution has become a prominent environmental problem. Noise pollution is considered to be the biggest environmental pollution factor caused by high-speed rail to the society. With the increase of my country's road network density and the increase of train speed, The noise level of train operation has greatly increased, which has seriously affected the residences on both sides of the line, especially in areas that are sensitive to noise such as hospitals, schools, and residential areas. The noise sources of high-speed rail mainly include the friction vibration between the pantograph and the transmission line, the friction between the train and t...

AI Technical Summary

Problems solved by technology

[0006] Aiming at the deficiencies in the prior art, the present invention provides a sound insulation screen that can effectively reduce the noise pollution in the space around the high-speed rail running, which has the functions of effectively reducing the noise pollution in the space around the high-speed rail running, firmly fixing the sound insulation screen, effectively reducing the noise pollution of the high-speed rail, and effectively The advantages of noise sound waves propagating to the surrounding space and effectively stabilizing the sound insulation screen solve the technical problem that the noise sound waves generated by the high-speed rail radiate to the surrounding space and pollute the surrounding space during high-speed driving.

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