Building drainage plastic stack with spiral ribs

A technology of building drainage and spiral ribs, which is applied in the direction of pipes, rigid pipes, pipe components, etc., can solve the problems of increased noise, odor return from floor drains, pressure fluctuations, etc., to prevent return odor, reduce the falling speed of water flow, and avoid alternating impacts Effect

Inactive Publication Date: 2015-04-29
上海深海宏添建材有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to solve the deficiencies and defects of the existing internal spiral plastic drainage pipes, which are prone to pressure fluctuations, water seal damage, floor drain back odor, and noise increase when the displacement increases, by changing the existing internal spiral plastic drainage pipes The shape of ...

Method used

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  • Building drainage plastic stack with spiral ribs
  • Building drainage plastic stack with spiral ribs
  • Building drainage plastic stack with spiral ribs

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Embodiment Construction

[0026] 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.

[0027] see Figure 5 to Figure 8 The shown building drainage plastic riser with spiral ribs includes a plastic riser body 100, on the inner wall 110 of the plastic riser body 100, several spiral ribs 120 are arranged coaxially and circumferentially along the axis of the riser.

[0028] In this embodiment, there are twelve spiral ribs 120, which are equally distributed along the circumferential direction of the pipe section. The top surface of the spiral rib 120 is a curved surface, so that the curvature of the top surface of the spiral rib 120 is greatly reduced, that is, the radius of curvature increases, and the connection between the root of the spiral rib 120 and the inner wall 110 of the plastic riser body is a circular arc transition structure122.

[0029] In this embodimen...

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Abstract

The invention discloses a building drainage plastic stack with spiral ribs. The plastic stack comprises a plastic stack body, wherein the inner wall of the plastic stack body is coaxially and circumferentially provided with a plurality of spiral ribs along the axis of the stack; the top surfaces of the spiral ribs are curved surfaces; junctions of the root parts of the spiral ribs and the inner wall of the plastic stack body are of circular arc transition structures. The top surfaces of the spiral ribs are curved surfaces, the curvature is greatly reduced (the curvature radius is increased), the situation that a water flow moves towards the center of the stack to produce water blockage is avoided according to the theory of a fluid wall attachment effect, the fluctuation of pressure in the pipe is reduced, the drainage flow rate within a certain pressure fluctuation range is improved, alternate impact of the water flow to the pipe is also avoided, and the pipeline vibration and the drainage noise are greatly reduced.

Description

technical field [0001] The invention relates to the field of building drainage pipes, in particular to a building drainage plastic standpipe with spiral ribs, which has the advantages of preventing floor drains, deodorizing, reducing water flow noise, and strong drainage capacity. Background technique [0002] Plastic pipe is a commonly used pipe for building drainage. However, because the inner wall of plastic pipe is smooth and the frictional resistance is small, when it is used for building drainage standpipe, the water flow velocity is relatively high. When the flow rate is slightly larger, it is easy to form water plug flow (water plug flow) : It means that when the building drainage riser is used for gravity drainage, when the flow rate is too large, the thickness of the water film attached to the pipe wall is too large, or the water flow is affected by the structure, the water flow forms a central water mass and falls in the pipe, forming a plug shape falling in the pi...

Claims

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Application Information

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IPC IPC(8): F16L9/12F16L55/045
CPCF16L9/12F16L55/045
Inventor 颜建萍吴克建林辉
Owner 上海深海宏添建材有限公司
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