Noise-absorbing device for eliminating tunnel noise
A noise elimination and sound-absorbing device technology, which is applied in tunnels, tunnel linings, shaft equipment, etc., can solve the problems of high management cost, impact, and low utilization rate of plates, so as to ensure the effect of noise reduction and reduce the cost of use
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[0021] The present invention will be further described below.
[0022] As shown in the figure, the present invention includes a sound-absorbing partition 1 and a sound-absorbing sphere 2,
[0023] The sound-absorbing partition 1 is provided with a plurality of sound-absorbing through holes 1.1, and there are multiple sound-absorbing spheres 2. The plurality of sound-absorbing spheres 2 are arranged on one side of the sound-absorbing partition 1, and are respectively connected to the plurality of sound-absorbing through holes 1.1. correspond;
[0024] The sound-absorbing sphere 2 includes a support shell 2.2 and a hollow rubber sphere 2.1, the support shell 2.2 is spherical, the hollow rubber sphere 2.1 is in the support shell 2.2, and the outer surface of the hollow rubber sphere 2.1 is fixed to the inner surface of the support shell 2.2, and the hollow The inner wall of the rubber sphere 2.1 is provided with a plurality of evenly distributed rubber protrusions 2.3, and the s...
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