Sound screen board and sound barrier using same

Abstract

The invention discloses a sound screen board and a sound barrier using the same. A sound screen board comprises a rectangular outer shell body and a sound absorbing body, wherein the rectangular outershell is composed of a panel, a back board, and a side board, and the sound absorbing bodyfillsthe interior of the outer shell body;in the assembly process of the sound screen board, the use of rivets is omitted, the appearance is more aesthetic, automatic continuous production can be realized, using of manpower is reduced, production efficiency is greatly improved, and finished products are decreased;in terms of using performance, the corrosion of riveting joints can be avoided, and the overall fixing strength can be ensured. In the assembly structure of the sound screen board, the top of the outer shell body is in the structural form of an upper flanging groove covering an upper clamping part, and an overlap joint slit is vertically formed, and a vertical upper clamping part is arrangedon the inner side of the lap joint slit for protection, so that rainwater does not enter into the outer shell body, thus the problemsof corrosion of the sound screen board and uneven filling caused by sinking of the sound absorbing body are avoided, the service life of the sound screen board is prolonged, and the sound absorption and noise reduction effects are further improved.A sound barrier has the using and producing advantages of the sound screen board.

Description

technical field [0001] The invention relates to the technical field of sound pollution control, in particular to a sound barrier and a sound barrier using the same. Background technique [0002] With the rapid development of the economy and the acceleration of urbanization, highways, railways, urban rail transit and other transportation methods have been developed rapidly. These roads will inevitably pass through densely populated residential areas during construction, and the traffic noise generated The work, life and study of residents near the road have brought certain disturbances. For traffic noise pollution, it can be controlled from noise sources, transmission channels, and sound receiving points, and setting up sound barriers along roads is one of the most effective means of controlling traffic noise recognized at home and abroad. [0003] The existing sound-absorbing panels mainly have the following problems: [0004] First of all, after the sound-absorbing panel ...

AI Technical Summary

Problems solved by technology

[0004] First of all, after the sound-absorbing panel is assembled with the back panel and the panel, there is a gap in the horizontal overlap on the top, and rainwater will enter the shell from this gap. On the one hand, it will cause rust and corrosion of the metal shell and reduce its strength; Immersed in the sound-absorbing body, the weight of the sound-absorbing body increases and sinks after absorbing water, resulting in no sound-absorbing body on the upper part of the sound-absorbing board, and the lower part of the sound-absorbing body deposits and reduces the sound-absorbing gap, thereby affecting the sound-absorbing effect;

[0005] Moreover, due to the overlap at the top of the sound-absorbing panels, the top is not a plane. After the upper and lower sound-absorbing panels are superimposed, there is a gap between the two, so that the sound waves can

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