Noise elimination shutter
The utility model discloses a noise elimination shutter, which is mainly composed of a top plate, a positioning cord, a pull rope, a steering mechanism, and movable blades. The utility model is characterized in that each movable blade has a sandwich type, and noise elimination material is inlaid bet...
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Format: | Patent |
Sprache: | eng |
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Zusammenfassung: | The utility model discloses a noise elimination shutter, which is mainly composed of a top plate, a positioning cord, a pull rope, a steering mechanism, and movable blades. The utility model is characterized in that each movable blade has a sandwich type, and noise elimination material is inlaid between the sandwich layers. The utility model is the noise elimination shutter having the functions of ventilation, optional lighting brightness adjustment, noise isolation, and noise elimination. Compared with an ordinary shutter, the noise elimination shutter can reduce the noise 5-15 db +/-of place with the noise elimination shutter being used. The noise elimination shutter is suitable for the places which need the noise isolation and the noise elimination, such as, offices, hotels, resident dormitories, etc. |
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