JPS62194336A - Gathering pipe joint of drain system - 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] L1 Kagetachi ■Danko 1 The present invention connects the vertical drainage mains of high-rise buildings on each floor, and connects the drainage equipment (toilet bowls, wash basins, sinks, floor drainage traps) on each floor. This invention relates to a drainage collecting pipe joint for collectively connecting the other ends of a plurality of horizontal branch pipes, one end of which is connected to the vertical drainage main pipe, etc.) to the vertical drainage main pipe.

In the drainage system of a building, when the drainage water flowing from the drainage equipment through the horizontal branch pipes flows down to the vertical drainage main pipe, this drainage water fills the cross section of the vertical drainage main pipe. The air pressure in the vertical drainage main pipe on the upstream side of this drainage water may drop, causing the sealed water in each drainage equipment to be sucked and discharged into the vertical drainage main pipe, emitting odors. May be released.

To prevent this, in the drainage system of low-rise buildings of about 4.5 stories, a ventilation pipe is connected to the upper end of the vertical drainage pipe.
A drop in the air pressure in the vertical drainage main on the upstream side of the drainage that has flowed down with all the cross sections of the vertical drainage main being faced is prevented by introducing outside air from the ventilation pipe, and each drainage equipment appliance is It was designed to prevent odor emission and release due to water sealing inside and suction and discharge.

However, in the drainage system of a high-rise building, in one vertical drainage system, drainage equipment may be used all at once across multiple floors, and each drainage equipment is connected to the ventilation pipe at the top of the vertical drainage main pipe. The suction and drainage prevention effect of the sealed water inside could no longer be expected, and in order to solve this problem, a vertical ventilation pipe was installed parallel to the vertical drainage main pipe, and the two were connected at appropriate points.

However, if a vertical ventilation pipe is installed parallel to the vertical main pipe and the two are connected at appropriate points, the drainage system becomes complicated, lengthening the construction period and increasing costs. Becomes high.

In order to avoid this, the method disclosed in Japanese Patent Publication No. 50-35349 and Japanese Patent Publication No. 51-14821 unifies the vertical drain pipes into one, and connects the branch pipes leading from the drainage equipment to the main vertical drain pipe. An inclined plate was attached to the inner periphery of the vertical drainage main, which was connected to the vertical drainage main in a tangential direction and gave swirling motion to the wastewater flowing inside the vertical drainage main.
Foreign matter tends to adhere to this inclined plate, and after the building is completed,
It becomes necessary to remove foreign matter in the drainage system within a relatively short period of time, and when a nozzle that sprays high-pressure water onto the inner wall of the vertical drainage main is inserted into the vertical drainage main, this inclined plate prevents the movement of the nozzle. It was difficult to remove the foreign matter attached to this inclined plate.

The present invention relates to an improvement of a drainage system that overcomes these difficulties, and includes vertical drainage main pipe joints at the upper and lower ends of the joint body, and joint branch pipes on the circumferential surface of the middle part of the joint body. In a drainage system collecting pipe joint comprising a plurality of pipes, the middle part of the joint main body is formed into a gently curved surface expanding outward, and an opening is provided from the intermediate expanding part to the joint branch pipe, and the joint branch pipe is connected to the joint branch pipe. It is formed so as to connect loosely in the same tangential direction to the intermediate expansion part of the joint body, and connects the vertical drainage main pipe to the vertical drainage main joint part at the upper end of the joint body of the drainage system collecting pipe joint, and By connecting the horizontal branch pipe that communicates with the drainage equipment to the junction of the branch pipes, the wastewater that first comes out of the drainage equipment and flows through the horizontal branch pipe is oriented in the tangential direction. A swirling motion is applied to the vertical drainage main, and the centrifugal force allows the waste water to flow down in a spiral manner along the vertical drainage main, leaving a space in the center of the vertical drainage main.

Furthermore, in the present invention, the joint branch pipes to which the plurality of horizontal branch pipes leading to each drainage equipment are connected are connected to the intermediate enlarged part of the joint body, so that the plurality of horizontal branch pipes can be connected at the same time. Even if drainage water flows and flows into this joint body,
This inflowing wastewater spirally rotates in the tangential direction at this intermediate bulky part, and even in this part, the wastewater does not fill up, leaving a space in the center, which extends over the entire length of the vertical drainage main pipe.
A continuous ventilation passage is formed.

In addition, in the present invention, since the intermediate portion of the joint body expands outward, the wastewater flowing in from the vertical drainage main pipe joint at the upper end of the joint body has a wide width when passing downward through this intermediate enlarged portion. The pressure is reduced near the opening leading to the joint branch pipe, and pressure fluctuations are prevented.

History UJIJ An embodiment of the invention illustrated in the drawings will be described below.

The vertical drainage main pipes 1 are connected one after another through drainage system collecting pipe joints 10 arranged on each floor 6 of the building, and the toilets 4 and washbasins 5 installed on the floors 6 of each floor are respectively toilet bowls. Connecting horizontal plate pipe 2. A drainage system is constructed by connecting to a branch pipe joint 16 of a drainage system collecting pipe joint 10 via a gray water horizontal branch pipe 3.

The upper and lower ends of the joint main body 11 of the drainage system collecting pipe joint 10 are provided with vertical drainage main pipe joints 14a and 14b, and the joint main body 11
A body intermediate expansion part 12 is formed in the middle of the main body intermediate expansion part 12 which expands outward into a substantially spherical shape at a location slightly above the vertical center, and an upwardly expanding part of the body intermediate expansion part 12 expands outwardly. 4 openings 1 every 90° when looking downwards
3a, 13b, 13c, and 13d are provided, and the joint branch pipes 15a, 15b, 15c, and 15d communicating with the openings 13a, 13b, 13c, and 13d are oriented in the same tangential direction and diagonally upward at different angles of inclination, respectively. and a branch pipe joint 16a at the pipe end of this joint branch pipe 15.
, 16d, 16c, and 16d are located on the same horizontal plane, the drainage system collecting pipe joint 10 is configured.

Since the illustrated embodiment is configured as described above, adjacent toilet bowls 4a, 4b and wash basins 5a, 5b on the same floor
If wastewater is discharged from any two or more of the following at the same time,
For example, when waste water is discharged from the toilet bowls 4a and 4b at the same time, the waste water flows through the horizontal plate pipes 2a and 2b connecting the toilet bowls and flows from the branch pipe joints 16a and 16b to the openings 13a and 13b via the joint branch pipes 15a and 15b. reaches the main body intermediate expansion part 12
flow inside.

At this time, the waste water that has passed through the joint branch pipes 15a and 15b and flowed into the 12 main body intermediate expansion parts flows through the joint branch pipes 15a and 15b.
Due to inertia when passing through b, the water flows along the center line direction of the joint branch pipes 15a, 15b, and then spirals down the inner wall surface of the main body intermediate expansion part 12, so a large amount of waste water is discharged from the toilet bowls 4a, 4b at once. Even if water flows into the main body intermediate expansion section 12, a space remains in the vertical center of the main body intermediate expansion section 12, and the vertical drainage system is not temporarily blocked by drainage, and the joint branch pipe 15a , 15b and the horizontal plate pipes 2a, 2b connected to the toilet bowl do not fall below atmospheric pressure, and the air pressure in the other connecting branch pipes 15c, 15d and gray water horizontal branch pipes 3a, 3b does not fall below atmospheric pressure. As a result, each toilet bowl 4a, 4b, wash basin 5a, 5
The water seal inside b can be maintained as it is, and odor leakage can be prevented.

Further, as is clear from FIG. 2, the drainage from the joint branch pipe 15a flows in the direction of the joint branch pipe 15c, and the drainage from the joint branch pipe 15b flows in the direction of the joint branch pipe 15d. As is clear from the above, since the inclination angles are different in the vertical direction, the drainage flowing from the joint branch pipe 15a through the opening 13a does not flow toward the opening 13b, and the joint branch pipe 1
The waste water flowing out of the opening 13b from the toilet bowl 4a does not flow toward the opening 13a.

4b are prevented from interfering with each other, and the aforementioned odor leakage is more reliably prevented.

Furthermore, since the shape inside the drainage system collecting pipe joint 10 is simplified and there is no protruding part, foreign objects can be removed from the drainage system collecting pipe joint 1.
Difficult to adhere to inside 0.

Furthermore, when it becomes necessary to remove foreign matter that has adhered to the drainage system many years after the completion of the building, equipment for removing foreign matter can be easily inserted into the drainage system. At the same time, the foreign matter can be easily removed, and the foreign matter removal work can be carried out with great efficiency.

Moreover, since the drainage system collecting pipe joint 10 has a simplified shape, it can be manufactured at low cost.

As described above, in the present invention, a space is left in the center of the vertical drainage main pipe, a continuous ventilation passage can be formed over the entire length of the vertical drainage main pipe, and the intermediate expansion portion of the joint body is Since the pressure fluctuation near the opening leading to the joint branch pipe can be suppressed, the water seal of the drainage equipment in the drainage system can be maintained as it is, and the dispersion and release of odors can be prevented.

Furthermore, in the present invention, since the inner surface of the joint is formed into a simple, gently curved surface, foreign matter in the drainage system is less likely to attach thereto, and furthermore, the work of removing foreign matter from the drainage system can be accomplished with great ease.

Moreover, in the present invention, since the drainage system and pipe joints are simplified, the construction period can be shortened, and costs can be reduced.

[Brief explanation of drawings]

Fig. 1 is a plan view of one embodiment of the drainage system collecting pipe joint according to the present invention, Fig. 2 is a cross-sectional plan view of the main part thereof, Figs.
The figure is a longitudinal cross-sectional view taken along the lines ``--'' and ``IV--IV'' in FIG. 2. 1... Vertical drain main pipe, 2... Toilet connection horizontal plate pipe, 3
... Gray water horizontal branch pipe, 4 ... Toilet bowl, 5 ... Wash basin, 6 ... Floor, 10 ... Drainage system collecting pipe joint, 11 ...
- Joint body, 12... Main body intermediate expansion part, 13... Opening, 14... Vertical drainage main pipe joint part, 15... Joint branch pipe, 16... Branch pipe joint part.

Claims (1)

[Claims] In a drainage collector pipe joint that has vertical drainage main pipe joints at the upper and lower ends of the joint body and a plurality of joined branch pipes on the circumferential surface of the middle part of the joint body, the middle part of the joint body has a gradual outward expansion. The joint branch pipe is formed to have a curved surface and is provided with an opening that leads from the intermediate expansion portion to the joint branch pipe, and the joint branch pipe is formed to be loosely connected to the joint body intermediate expansion portion in the same tangential direction. Features: Drainage system collecting pipe joint.