Low-noise drain pipe
A drainpipe, low-noise technology, applied in the direction of pipe components, pipes/pipe joints/fittings, mechanical equipment, etc., can solve the problems of disturbing the sleep of surrounding users, poor sound insulation effect, and high cost of drainpipe materials
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[0012] Such as figure 1 as shown, figure 1 It is a structural schematic diagram of a low-noise drainage pipe proposed by the present invention.
[0013] refer to figure 1 , in one embodiment, a low-noise drainage pipe proposed by the present invention is formed by coaxially socketing the first pipe body 1, the second pipe body 2, ... the nth pipe body n in sequence from the inside to the outside, The coaxial socket connection of the first pipe body 1, the second pipe body 2, ... the nth pipe body n can be realized by multi-layer co-extrusion; the outer surface of the mth pipe body m is an undulating surface and the m+1th pipe body The inner surface of m+1 is an undulating curved surface matching the outer surface of the mth pipe body m, the inner surface and outer surface of the second pipe body 2, ..., the n-1th pipe body are wavy curved surfaces with different waveforms, and The outer surface of n pipe body n is a smooth curved surface, where m and n are both natural numb...
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