JPS63297634A - Drain joint pipe - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a drainage joint pipe used in a drainage pipe system of a high-rise building, etc.

(Prior Art) As a drain pipe for drainage, there is one disclosed in Japanese Patent Application No. 120018/1982. The upper and lower ends of this pipe are connection openings for the vertical drainage pipe, and between the upper and lower openings there is provided an enlarged part that is larger than the vertical drainage pipe. A deflection guide is provided to divert the wastewater to one side of the ampulla, and an inclined part is provided at the bottom of the ampulla that moves toward the inside of the Setsuji diameter as it goes downward, and the drainage water is swirled around this inclined part. It is equipped with blades for this purpose. Then, as the wastewater swirls and flows down along the pipe wall, it forms an air core that penetrates the center of the pipe in the axial direction, preventing the drainpipe from being blocked by the wastewater and increasing the pressure inside the pipe. This prevents the trap water seal of drainage equipment from breaking.

In addition, by providing the blades in the ampulla, the blades prevent the drainage flow path from narrowing, thereby preventing drainage clogging.

(Problem to be Solved by the Invention) Since a drainage pipe is installed inside a limited space in a building, its radial dimensions, especially the radial dimension of a joint pipe whose diameter is larger than that of a vertical water pipe. Dimensions will be limited.

In the above-mentioned conventional joint pipe, since the ampullae is uniformly expanded in the radial direction, the biased flow guide end and the inner circumferential surface of the ampulla become close to each other, and the deviated drainage water is transferred to the inner circumferential surface of the ampulla. There was a problem in that the water collided with the water so forcefully that it bounced back toward the center of the pipe, preventing the drainage from being guided by the swirling vanes.

The present invention aims to solve the above problems.

(Means for Solving the Problems) The present invention is characterized in order to solve the problems of the prior art, in that the upper and lower ends are the connecting openings 2.
3, and between the upper and lower openings 2.3, there is provided an enlarged part 5 that is larger than the vertical water pipe 1, and on the upper part of this enlarged part 5, flowing drainage water is directed to one side of the enlarged part 5. In a joint pipe for drainage, a drainage joint pipe is provided with a deflection guide 6 for causing the flow to flow in the opposite direction, and a vane 7 for swirling the flowing waste water is provided inside the enlarged part 5. The vane 7 is provided in the bulged portion that is bulged out on one side.

(Function) Even if the enlarged portion 5 has a limited radial dimension,
Since the bulge is biased in the direction of the polarized flow, the distance in the direction of the polarized flow between the drifting end of the drifting guide 6 and the inner peripheral surface of the ampullae can be made as large as possible, thereby preventing the drifting flow from colliding with the inner peripheral surface of the ampullae and bouncing back. can. Moreover, since the blades 7 are located in the unevenly bulged portion of the enlarged portion 5, the drainage can be reliably swirled.

(Example) Embodiments of the present invention will be described below based on the drawings.

The drainage joint pipe according to the first embodiment shown in FIGS. 1 and 2 has upper and lower ends serving as connection openings 2 and 3 for the vertical water pipe 1. The uppermost end of the vertical water pipe 1 is an elongated ventilation pipe (not shown) that is opened to the roof ring of the building. Between the upper and lower openings 2 and 3, there is a huge part 5 that is larger than the vertical water pipe 1.
It is said that

A deflection guide 6 is provided at the upper part of the enlarged portion 5 to deflect the flowing drainage water to one side of the enlarged portion 5.

In this embodiment, the deflection guide 6 is integrally provided to protrude radially inward from the enlarged portion 5, and deflects the flowing wastewater with an inclined surface that gradually shifts to the side as it goes downward. be.

The enlarged portion 5 is formed so as to bulge out toward one side where the downstream drainage water is deflected by the deflection guide 6. In this embodiment, the ampullae 5 is circular in plan view,
Its center is eccentric to one side from the pipe axis of the vertical water pipe 1. The lower part of the unevenly bulging portion of the enlarged portion 5 is an inclined portion 8 that gradually moves radially inward as it goes downward. This inclined portion 8 is provided with one blade 7 for swirling the downstream drainage water.

Note that an open connection part 9 with the horizontal pipe 4 is provided below the drift guide 6 of the ampulla 5, so that drainage from a drainage device such as a toilet (not shown) connected to the horizontal pipe 4 flows into the ampulla 5. There will be an influx.

According to the above configuration, the downstream drainage water is deflected to one side by the deflection guide 6, guided to the blades 7, and rotated by the blades 7, as shown by the arrow in FIG. At this time, since the enlarged portion 5 is bulged out to one side, the distance in the deflection direction between the end of the deflection guide 6 and the inner circumferential surface of the enlarged portion 5 is made as large as possible. As a result, even if the diameter of the enlarged part 5 is limited in terms of space, it is possible to prevent the drifted flow from colliding forcefully with the inner peripheral surface of the enlarged part 5 and bouncing back.
You will be reliably guided by the blade 7. As a result, as shown in FIG. 3, the waste water 10 flows down along the inner wall of the drain pipe 1, and an air core 11 is formed in the center that extends vertically along the pipe axis, and the waste water blocks the pipe. This prevents the pressure inside the pipe from increasing due to this, and prevents the trap water seal of the drainage equipment from breaking.

FIGS. 4 and 5 relate to the second embodiment, and the difference from the above embodiment is that the enlarged portion 5 is oval in plan view and has a longer diameter in the drift direction, so that it bulges out to one side. The other points are that the deflection guide 6 is formed of a plate-shaped body separate from the enlarged portion 5, and the other configurations are the same as described above and are designated by the same reference numerals.

6 and 7 relate to the third embodiment, which differs from the first embodiment in that the enlarged portion 5 is bulged and has a trapezoidal shape in plan view, and that the deflection guide 6 is arranged in the enlarged portion 6. A portion 6a integrally protruding radially inward from the center and a portion 6b having a plate-shaped body protruding radially inward form a U-shaped diameter in plan view. Further, the blades 7 are provided in areas other than the bulge. The rest has the same configuration and is indicated by the same reference numerals.

(Effects of the Invention) According to the joint pipe for drainage according to the present invention, even if the diameter of the ampullae is limited due to space, the ampullae is bulged out biased in the direction of biased flow. This prevents the flow from colliding with the flow and bouncing back, and is reliably guided by the swirling blades to create a swirling flow. As a result, the waste water forms an air core as it flows down the drain pipe, preventing an increase in the pressure inside the pipe, and preventing the trapper water seal of the drainage device from breaking.

[Brief explanation of the drawing]

FIG. 1 is a longitudinal sectional view of a joint pipe according to a first embodiment of the present invention;
FIG. 2 is a plan view of the same, FIG. 3 is a diagram showing the state of drainage in the standpipe, FIG. 4 is a longitudinal cross-sectional view of the joint pipe according to the second embodiment, and FIG.
6 is a longitudinal sectional view of the joint pipe according to the third embodiment, and FIG. 7 is a sectional plan view thereof. 1 - Standing water pipe, 2.3 - Connection opening, 5 - Ampulla, 6
- Straight flow guide, 7 - Vane, 8 - Inclined part. Patent applicant: Kubota Iron Works Co., Ltd. Figure 7
Figure 5 is Figure A52.

Claims (1)

[Claims] (1) The upper and lower ends are the connection openings 2 and 3 of the vertical drainage pipe 1, and the enlarged portion 5, which is larger than the vertical drainage pipe 1, is provided between the upper and lower openings 2 and 3. , a drainage guide 6 is provided on the upper part of the enlarged part 5 to deflect the flowing wastewater to one side of the enlarged part 5, and a vane 7 is provided inside the enlarged part 5 to swirl the flowing waste water. In the joint pipe, the enlarged portion 5 is bulged out to one side where the flowing wastewater is deflected by the deflection guide 6, and the blade 7 is provided in the bulged out part. Characteristic drainage joint pipe.