A noise reduction device for municipal road and bridge construction

Abstract

The present application relates to noise control and environmental protection engineering technical field, specifically to a kind of municipal road bridge construction is with noise reduction device, including base, the top of base is equipped with for absorbing noise noise reduction component, noise reduction component includes fixedly connected to the top of base resonance box, the opening of resonance box is detachably connected with panel, and several sound absorption holes are opened in panel;Resonance box inside is equipped with for adjusting the adjusting assembly of resonance box internal space structure, adjusting assembly includes the telescopic baffle of being arranged in resonance box inside, and telescopic baffle is jointly enclosed with resonance box and panel resonance cavity, and the inner top wall and inner bottom wall of resonance box are all opened with sliding groove, and the one side wall of sliding groove is all rotationally cooperated with ball screw.The present application transmission assembly and the cooperation of adjusting assembly realize telescopic baffle position adjustable, to change the cavity depth and cavity section form of resonance cavity, to adapt to the scene of the noise frequency band change of municipal road bridge construction scene, improve the noise reduction flexibility of device.

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