Concave-convex overlapping system suitable for metal sound barrier

Abstract

The invention provides a concave-convex overlapping system of a metal sound barrier. The system comprises stand columns arranged according to a certain interval and metal screen bodies arranged between the adjacent stand columns, each stand column comprises a web plate and two or more wing plates fixedly connected with the web plate, and the two or more wing plates are fixedly connected with the web plate. Each wing plate comprises a wing plate body and a blocking structure arranged on the edge of the wing plate body, a limiting structure is arranged on the end section bar, and in the using state, the limiting structure is located on the inner side of the blocking structure and matched with the blocking structure. Compared with a sound barrier structure of an existing structure, due to the fact that the anti-disengaging stand columns and the anti-disengaging metal screen bodies matched with the anti-disengaging stand columns are adopted, errors in the installation process can be avoided due to the blocking effect of the blocking structure, the metal screen bodies cannot be disengaged from the stand columns, safety of road vehicles and pedestrians is effectively protected, and the system has great application value.

Description

technical field [0001] The invention relates to a noise protection device, in particular to a concavo-convex overlapping system suitable for metal sound barriers. Background technique [0002] The sound insulation wall, also known as the sound barrier, refers to a facility inserted between the sound source and the receiver, so that the sound wave propagation has a significant additional attenuation, thereby reducing the impact of noise in a certain area where the receiver is located. It is mainly used for sound insulation and noise reduction of roads, expressways, elevated composite roads and other noise sources. Sound barriers are divided into reflective sound barriers for pure sound insulation, and composite sound barriers that combine sound absorption and sound insulation. The latter is a more effective sound insulation method. Roads and expressways are the places where various types of sound barriers are used most. [0003] According to its structural form, sound barri...

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Problems solved by technology

Vertical sound barriers generally include shaped steel and sound barriers installed between adjacent shaped steels. The sound barrier is generally inserted between adjacent shaped steels. This structure generally withstands external forces or thermal expansion and contraction. , the sound barrier body is easy to come out from the section steel, and the mistake of on-site installation will also make one end of the screen body break away from the section steel or only a small area of ​​contact with the section steel, once the force is applied, the screen body will easily come out, so provide a The concave-convex overlapping system suitable for metal sound barriers with positioning and locking functions has become a technical problem that needs to be solved in this industry

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