A one-way sound-absorbing wall filling material

Abstract

The invention discloses a one-way sound-absorbing wall filling material, which belongs to the field of noise reduction and environmental protection. The one-way sound-absorbing wall filling material can be arranged by a plurality of conch-shaped two-way sound tubes, and the sound can be reduced from the inside to the outside. It is conducted from the thick end to the thin end, and the inner diameter of the thin end is larger, which can play a better sound amplification effect. At the same time, from the outside to the inside, the sound is conducted from the thin end to the thick end, so that the sound passes through many times. The inner wall of the thin end and the thick end is reflected to achieve an effective noise reduction effect. At the same time, with the function of the semi-sound insulation board, it can achieve the effect of different sound insulation between indoor and outdoor, thereby effectively improving the application range of this sound insulation material, so that people in the room can be protected from the outside world. At the same time as the noise is disturbed, people outside can detect the movement in the room in time, thereby improving the rest quality of people indoors, and at the same time reducing certain safety hazards.

Description

technical field [0001] The invention relates to the field of noise reduction and environmental protection, and more specifically relates to a one-way sound-absorbing wall filling material. Background technique [0002] Noise is a kind of sound that causes irritability or is too loud and endangers human health. From the perspective of environmental protection: All sounds that hinder people's normal rest, study and work, and sounds that interfere with the sounds that people want to listen to are all noise. From the point of view of physics: Noise is the sound produced when the sounding body vibrates randomly. According to the mechanical characteristics of the sound source, noise pollution can be divided into: noise generated by gas disturbance, noise generated by solid vibration, noise generated by liquid impact, and electromagnetic noise generated by electromagnetic action. According to the frequency of the sound, the noise can be divided into: low-frequency noise <400Hz...

AI Technical Summary

Problems solved by technology

[0003] The existing sound-absorbing materials filled in the wall generally have no difference in sound insulation between the inside and outside directions, so for some special occasions, this sound insulation method is difficult to apply, such as baby rooms, sick rooms and elderly rooms, etc., that is, it needs The sound insulation is good, and at the same time, people outside the room must be able to hear the movement in the room in time. If the sound insulation is too poor, it is likely to cause poor sleep for babies, patients and the elderly, which will have a great impact on health. If the sound insulation is too good, people outside the room People cannot hear the voices of infants, patients or the elderly in time, resulting in the inability to discover the needs of patients or infants in time, resulting in certain potential safety hazards

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