JPS6367492A - Collecting drainage joint - Google Patents

Abstract

(57) [Abstract] 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 is directed to a drainage joint for collecting and connecting drainage pipes installed on each floor of a high-rise building, etc.
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(Prior art and its problems) In high-rise buildings, a main drainage pipe is installed vertically from the basement to the top floor, and this main drainage pipe is connected to various drainage equipment such as toilets and washrooms on each floor using branch drainage pipes. A piping system is used. The drainage wooden pipes and the branch drainage pipes are connected via collective drainage joints, but conventional collective drainage joints cannot always be used at full capacity.

For example, Japanese Utility Model Publication No. 50 399538 proposes a collective drainage joint for connecting a plurality of branch drainage pipes to a drainage wooden pipe.

This collective drainage joint allows the drainage water that flows into the collection room from the branch drainage pipe to flow down into the main drainage pipe while swirling along the side wall of the collection room, but a large amount of drainage water flows from the upper part of the main drainage pipe at once. When wastewater flows down or when wastewater containing solids flows into the collection room, the pressure inside the collection room increases, and the wastewater sometimes flows backwards from the branch drain pipe connected to the collection drainage joint.

Also, while the drainage water is swirling along the side wall of the gathering room,
There were cases where wastewater backflowed into branched drain pipes that did not flow into the gathering room.

The present invention solves the problems of such collective drainage joints, and prevents the drainage water flowing down from above the main drainage pipe and the drainage water flowing into the collection room from the branch drainage pipes from flowing back into the branch drainage pipes. The present invention provides a collective drainage joint.

(Means for Solving the Problems) The collecting and draining joint of the present invention includes a collecting chamber and an outer shell that surrounds the outer circumferential side of the collecting chamber at a predetermined interval. The gathering chamber has a side wall whose diameter decreases from the cylindrical portion into a funnel shape with a gently arcuate surface, and a drainage outlet is provided at the bottom of the side wall. In addition, the upper part of the cylindrical part is covered with a top plate, a drainage inlet is provided approximately in the center of the top plate, a vertical pipe is inserted into the drainage inlet, and the lower end thereof is inserted into the gathering room for a predetermined length. Make it stick out and fix it.

In the gathering room, a partition tube is suspended from the top plate to form a donut-shaped space with a predetermined distance between the side wall and the lower end of the vertical tube, and a through hole is formed in the top plate above each space. A branch drain pipe is connected to the partition tube and the side wall from a tangential direction.

EMBODIMENT OF THE INVENTION Hereinafter, the specific structure of this invention is demonstrated in detail based on an Example.

(Embodiment) FIG. 1 is a longitudinal sectional view showing an embodiment of the present invention, and FIG. 2 is a π-■ track sectional view of FIG.
2 is an outer shell. The gathering room 1 and the outer shell 2 can be made of suitable materials such as thermoplastic synthetic resin, steel plate, aluminum plate, cast iron, etc. However, in consideration of workability and economy, polyethylene resin, vinyl chloride resin, etc. Preferably, it is made of thermoplastic synthetic resin.

The gathering room 1 has a side wall 11 whose diameter decreases into a funnel shape from a cylindrical part 110 with a gently arcuate surface 111. A drainage outlet 14 is provided at the lower part of the side wall 11, and a vertical pipe 4 is connected to the cough drainage outlet 14. Connecting.

On the other hand, the upper part of the cylindrical part 110 is covered with a top plate 12, and a drainage inlet 13 is provided approximately at the center of the top plate 12, and the vertical pipe 3 is inserted into and connected to the drainage inlet 13. At this time, the lower end portion 31 of the vertical pipe 3 is fixed by being projected into the gathering room 1 by a predetermined length. Note that the lower end 31 of the vertical 'r' 13 is the drainage inlet 13.
It may be inserted into the top plate 3 and molded integrally with the top plate 3.

In the gathering room 1, one to a plurality of partition tubes 1A are installed from the top plate 12,
A donut-shaped space A with a predetermined distance between the side wall 11 and the lower end 31 of the vertical tube 3,
Form A... The partition tube 1A is preferably formed to have a substantially similar shape to the side wall 11, as shown in the cross-sectional view in FIG. . In this way, the waste water flowing into the space A from the branch drain pipe can be smoothly flowed down into the vertical pipe.

There are through holes 12 in the top plate 12 above each space A.
a, the partition tubes 1A, 1A..., and the side wall 1
1, branch drain pipes 5a, 5b, . . . are connected from the tangential direction.

In addition, the outer circumferential side of the gathering room 1 is provided with an outer shell 2 at a predetermined interval.
The vent pipe 7 is connected to the upper connecting portion 23 of the outer shell 2, and the vent pipe 8 is connected to the lower connecting portion 24 of the outer shell 2.

Thus, the upper and lower ventilation pipes 7.8 are connected via the outer shell 2, and the upper and lower [tubes 3.
4 are connected via the gathering room 1.

(Operations and Effects of the Invention) As described in detail above, the collection drainage joint of the present invention divides the collection room with a partition tube to form a plurality of independent donut-shaped spaces, and the partition tube and Since the branch drain pipe is connected tangentially to the side wall of the collection room, the waste water flowing into the collection room flows into the vertical pipe (main drainage pipe) while swirling without mutual interference and is smoothly discharged.

In addition, the outer circumferential side of the gathering room is surrounded by an outer shell at a predetermined interval, and a through hole is provided in the top plate of the gathering room to exhaust the air in the gathering room and the vertical pipe, so that the upper part of the vertical pipe is Even when a large amount of wastewater flows down at once, or when wastewater containing solids flows into the collection room, the wastewater will not flow back into the branch drain pipe.

Moreover, since the collection room where the drainage water from each floor collects has a double structure covered by an outer shell, no noise is generated, and especially at night, there is no noise pollution.

[Brief explanation of the drawing]

The drawings show one embodiment of the present invention, in which Fig. 1 is a longitudinal cross-sectional view of a collective drainage joint, and Fig. 2 is a cross-sectional view of the It-IF of Fig. 1.
FIG.

Claims (1)

[Claims] A collecting and draining joint consisting of a collecting chamber (1) and an outer shell (2) surrounding the outer circumferential side of the collecting chamber (1) at a predetermined interval, the collecting chamber (1) having a cylindrical part ( The side wall (110) decreases in diameter into a funnel shape with a gently arcuate surface (111).
11), and a drainage outlet (1) at the bottom of the side wall (11).
4), and the upper part of the cylindrical part (110) is provided with a top plate (
12), and provide a drainage inlet (13) approximately in the center of the top plate (12), insert a vertical pipe (3) into the drainage inlet (13), and collect its lower end (31). It is fixed by protruding a predetermined length into the room (1), and the top plate (1) is fixed in the gathering room (1).
A donut-shaped space (A) with a predetermined distance between the side wall (11) and the lower end (31) of the vertical tube (3) by hanging the partition tube (1A) from 2). At the same time, the top plate (12) above each space (A) has a through hole (
12a), the partition tube (1A) and the side wall (1
A collective drainage joint characterized in that branch drainage pipes (5a) and (5b) are connected to 1) from a tangential direction.