Combined kerb and drainage units are fundamental elements of connection between the roadway and rainwater sewer pipes, designed to intercept and convey the rainwater (or road washing) that flows in the surface. They are installed on the roads, in correspondence with the sidewalk kerbs of streets, squares or parking lots, to prevent water from excessively accumulating on the surface, exposed to the meteoric event. In addition to this thanks to hinged covers, they allow cleaning and an easier access to underground rain collecting systems.
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Chambers are very important in the rainwater management, in fact they stand as a fundamental part of the system. Moreover, the drain trap is an essential element of the gully/chamber system by conveying rainweater correctly, preventing bad smells coming out from the drains, avoiding in the same time clogging and whirpools. In most of the market available drain traps , however, rainwater and debris often create stagnation, becoming an environment issue for the proliferation of unpleasant insects such as tiger mosquitoes, cockroaches, drain flies, and several other insects and rodents, creating a real hygiene issue. These problems are often addressed with insecticides and chemicals that may accumulate, from time to time, in the aquifers and in the surrounding soils with a relapse toxicity problem to the environment.
As a possible solution against insect larvae, with particular focus on sustainability, Link proposes the innovative ECOSYSTEM: an intelligent tilting lever (open/close) mechanism.
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The pannel for concrete floor and the substrate are two different layers present in the floors, as a horizontal structure that divides the different floors of a building. The intrados surface of the floor is called the ceiling, while the extrados surface is the support of the floor of the upper floor. The floor system rests on the extradosal surface, as a set of layers between the structural support and the final flooring: a system that requires careful planning to ensure resistance, stability and safety.

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