Sound insulation advertising wallboard for expressway

Abstract

The invention discloses a sound insulation advertising wallboard for expressways and belongs to the technical field of sound insulation wallboards and advertising equipment. The wallboard is formed bysequentially connecting an advertising panel, a sound absorption layer, an integration layer, a shock absorption layer, a first support plate, a first silencing layer, an isolation layer, a second silencing layer and a second support plate, wherein the advertisement panel and the integration layer are made of elastic mild steel plates, the sound absorption layer is made of high-damping silicone rubber and is made of a bidirectional horn through hole rubber plate, the shock absorption layer is made of a spring plate, the sound attenuation layer is made of a glass wool substrate, and the isolation layer is made of a vacuum sponge cavity. The wallboard is advantaged in that highway noise sound waves are absorbed and spread into the partition board, the sound waves are transmitted to the integration layer and the spring plate through the sound absorption rubber plate, noise wave energy is greatly buffered and reduced through elastic displacement and reset, and then the noise sound waves are basically eliminated through sound insulation of the sound absorption layer and the vacuum sponge cavity; and the advertisement wallboard is combined with the integral silencing structure to eliminate noise, so two purposes are achieved.

Description

technical field [0001] The invention relates to the technical field of sound-insulating wall panels and advertising equipment, in particular to a sound-insulating advertising wall panel for highways. Background technique [0002] The noise problem of expressways has always been a problem that people have paid close attention to in recent years. The most effective measure to solve the problem of road network noise in high-speed traffic is to set up road noise barriers. The sound barrier is a wall structure installed beside the railway and road to reduce the impact of driving noise on nearby residents. It is mainly used for sound insulation and noise reduction of highways, elevated composite roads and other noise sources. At present, composite sound barriers that combine sound absorption and sound insulation are mainly used. [0003] Patent document CN 110984011 A discloses a sound-insulating and noise-reducing wall structure, which includes a first wall and a second wall. A ...

AI Technical Summary

Problems solved by technology

[0004] Although this solution can reduce noise to a certain extent, the structure is complicated and the effect is very limited. In particular, the rubber buffer layer is directly combined with the vacuum glass. Since the vacuum glass has no elasticity, the effect of the rubber buffer layer is greatly reduced; especially It arranges sound-absorbing foam, rubber buffer layer, sound-absorbing interlayer, etc. between two hard walls, which cannot produce elasticity and buffering, making the effect of the rubber buffer layer even lower

[0005] In addition, there are many advertising walls on the expressway, which are only used as a tool for posting advertisements, which takes up space and reduces its use value.

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