JP-7855122-B1 - Drainage manifolds, drainage systems, and buildings

JP7855122B1JP 7855122 B1JP7855122 B1JP 7855122B1JP-7855122-B1

Abstract

[Problem] To realize a configuration that can improve the drainage performance of a resin-made drainage manifold without changing the molds used for manufacturing. [Solution] The drainage manifold 1 has a pipe body 10 and at least one branch pipe connection part 40 that connects a branch pipe 3 to the pipe body 10, and is a resin pipe that is installed so that the pipe body 10 penetrates the floor slab of the building. The drainage manifold 1 has a drainage straightening part 50 provided on the inner circumferential surface of the pipe body 10 that straightens the flow of drainage in the pipe body 10. The drainage straightening part 50 is located at a predetermined position relative to the extension of the axis P2 of the drainage riser 2, in a state where the drainage riser 2 that carries drainage from the upper floor is connected to the upper part of the pipe body 10 so that it is inclined with respect to the axis of the pipe body 10, in order to improve the drainage performance of the drainage manifold 1. [Selection Diagram] Figure 5

Inventors

足立宏平
八木博史

Assignees

株式会社クボタケミックス

Dates

Publication Date: 20260507
Application Date: 20250612

Claims (7)

A resin drainage manifold having a pipe body and at least one branch pipe connection portion for connecting a branch pipe to the pipe body, wherein the pipe body is installed so as to penetrate the floor slab of a building, The pipe body has a drainage straightening section provided on its inner circumferential surface, which straightens the flow of drainage from the pipe body. The aforementioned drainage rectification section is, With the drain riser that carries wastewater from the upper floor connected to the upper part of the pipe body such that it is inclined with respect to the axis of the pipe body, On the inner circumferential surface of the pipe body, a predetermined position is located with respect to the extension of the axis of the drain riser pipe to improve the drainage performance of the drain manifold pipe, The drainage straightening section is positioned such that, when viewing the drainage manifold in a cross-section including the axis of the drainage riser, the extension of the axis of the drainage riser intersects the inner circumferential surface of the pipe body. Drainage collection pipe.
In the drainage manifold according to claim 1, The drainage straightening section is located on the inner circumferential surface of the pipe body, when viewed in the axial direction of the drainage manifold, at a position where the extension of the axis of the drainage riser coincides with it. Drainage collection pipe .
In the drainage manifold according to claim 1, The drainage flow straightening section is provided on the inner circumferential surface of the pipe body and includes a swirling vane that generates a swirling flow in the drainage flowing inside the pipe body with respect to the axis of the pipe body. Drainage collection pipe.
In the drainage manifold according to claim 3 , The drainage straightening section is located upstream of the swirling vane on the inner circumferential surface of the pipe body and further includes a flow deflection plate that changes the direction of drainage flow. Drainage collection pipe.
In the drainage manifold according to claim 1, The upper part of the pipe body is configured such that, when viewing the drain riser in the axial direction, the maximum displacement, which is the horizontal distance between the extension of the axis of the drain manifold at the upper end of the drain riser and the axis of the drain riser, is less than or equal to half the inner diameter of the drain riser. Drainage collection pipe.
A drainage system used in a building with multiple floors, A drainage manifold according to any one of claims 1 to 5 , A horizontal branch pipe is connected to the horizontal branch pipe connection of the aforementioned drainage manifold, through which the drainage from each floor flows. A drain riser is connected to the main body of the aforementioned drainage manifold, through which drainage from the upper floor flows. Having, Drainage system.
A building having the drainage system described in claim 6 .

Description

This invention relates to a resin-made drainage manifold, drainage system, and building, having a pipe body and at least one branch pipe connection portion for connecting a branch pipe to the pipe body, wherein the pipe body is routed to penetrate the floor slab of a building. A resin drainage manifold is known that has a main pipe body and at least one branch pipe connection portion for connecting branch pipes to the main pipe body, with the main pipe body being routed to penetrate the floor slab of a building. As an example of such a drainage manifold, Patent Document 1 discloses a resin joint configured to be insertable into a floor slab. The joint described in Patent Document 1 comprises a plurality of branch pipes, a resin upper member that protrudes above the floor slab when the joint is inserted into the floor slab, a resin lower member that is fitted and connected to the lower end of the upper member, with its upper part embedded inside the floor slab and its lower part protruding below the floor slab when the joint is inserted into the floor slab, a wing member located within the upper part of the lower member and inclined with respect to the axis of the lower member, and a thermal expansion material provided on the peripheral wall of the lower member. For example, as disclosed in Figure 1 of the aforementioned Patent Document 1, the lower part of a riser pipe, which constitutes a drainage riser pipe within the pipe shaft of a building and allows drainage flowing in from the lateral branch pipes to flow down, is fitted to the upper part of the upper member. Patent No. 7048812 This figure shows an example of a drainage system using a drainage manifold according to Embodiment 1 of the present invention.This is a perspective view showing the general configuration of a drainage manifold.This is a top view showing the schematic configuration of a drainage manifold.This is a cross-sectional view showing the cross-section of the drainage manifold cut along the line IV-IV in Figure 3.This is a cross-sectional view of a drainage manifold and drainage riser pipe when cut along a plane containing the axis.Figure 5 shows the cross-section of the drain riser and the drain manifold as cut along the line VI-VI in Figure 5.This is a cross-sectional view of the drainage manifold and drainage riser according to Embodiment 2, when cut along a plane including the axis.This figure shows the cross-section of the drain riser and the drain manifold as cut along the line VIII-VIII in Figure 7.This is a cross-sectional view of the drainage manifold and drainage riser according to Embodiment 3, when cut along a plane including the axis.Figure 9 shows a cross-section of the drain riser and drain manifold as cut along the line X-X in Figure 9. The following describes each embodiment with reference to the drawings. In each drawing, the same parts are denoted by the same reference numerals, and the description of those parts will not be repeated. Note that the dimensions of the components in each drawing do not faithfully represent the actual dimensions of the components or their dimensional ratios. In the following explanation, the axial direction of the pipe body 10 of the drainage manifold 1 is referred to as the "axial direction." The radial direction of the pipe body 10 is referred to as the "radial direction." The circumferential direction of the pipe body 10 is referred to as the "circumferential direction." Furthermore, in the following explanation, the terms "fixing," "connecting," and "attaching" (hereinafter referred to as "fixing, etc.") include not only cases where components are directly fixed to each other, but also cases where they are fixed to each other via other components. In other words, in the following explanation, the terms "fixing, etc." include both direct and indirect fixing of components to each other. [Embodiment 1] (Drainage system) Figure 1 shows an example of a drainage system S1 using a drainage manifold 1 according to Embodiment 1 of the present invention. The drainage manifold 1 is a manifold joint installed at the junction of a drainage riser 2 and a horizontal branch pipe 3 in a multi-story building T such as an apartment building or commercial building. The drainage system S1 is a drainage system installed in a multi-story building T using the drainage manifold 1, drainage riser 2 and horizontal branch pipe 3, etc. In other words, the building T has the drainage system S1. The drainage system S1 comprises a drainage manifold 1, a drainage riser 2, and a horizontal branch pipe 3. The drainage manifold 1 is installed within a through-hole X1 that penetrates vertically through the floor slab X of the building T. The drainage riser 2 is located above or below the floor slab X and extends vertically, with its end connected to the drainage manifold 1. The horizontal branch pipe 3 extends along the upper surface of the floor slab X, with its end connected to the drainage manifold 1. The detailed co