A building drainage plastic riser with a spiral single blade
A building drainage and single-blade technology, which is applied in buildings, water supply installations, indoor sanitary pipeline installations, etc., can solve problems such as increased noise, floor drain back odor, pressure fluctuations, etc., to prevent back odor, reduce drainage noise, and avoid The effect of alternating shocks
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[0024] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention will be further elaborated below.
[0025] see Figure 5 to Figure 7 The shown building drainage plastic riser with spiral single blade includes a plastic riser body 100, and a spiral single blade 120 is coaxially arranged on the inner wall 110 of the plastic riser body 100 along the axial direction of the riser. The connection between the root 121 of the helical single blade 120 and the inner wall 110 of the plastic riser body is a circular arc transition structure 130, so that the curvature of the connection between the root 121 of the helical single blade 120 and the inner wall 110 of the plastic riser body is greatly reduced, that is, the radius of curvature Increase, when the water flow in the pipe falls along the pipe wall, the water flow is absorbed on the pipe wall and will not leave, forming a good flow stat...
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