JPH04126967U - Drainage pipe collecting pipe - Google Patents

Abstract

(57) [Summary] [Purpose] To ensure that air is removed from the drainage pipe, and to keep the air pressure in the pipe below the standard value even when the drainage flow rate is large, reducing pressure fluctuations and noise, and ensuring stable drainage flow. . [Structure] A collection pipe 7 of drainage piping to which a drainage standpipe 8 consisting of two pipes is connected to the upper and lower ends and a horizontal branch pipe 6 is connected to the side, and the partition wall 12 of the drainage standpipe 8 is Correspondingly, a partition wall 17 parallel to the pipe axis is provided to divide it into a drainage channel 18 and a ventilation channel 19, a horizontal branch pipe joint 21 is provided on the drainage channel 18 side, and a ventilation section 22 is provided in the middle of the partition wall 17. is provided to allow air circulation between the drainage channel 18 and the ventilation channel 19.

Description

[Detailed explanation of the idea]

0001

[Industrial application field]

This invention is designed to handle drainage pipes used in medium- and high-rise residential buildings, especially for sewage and gray water. Concerning a collecting pipe interposed in a drainage standpipe in a single-pipe drainage pipe that flows into one drainage pipe. It is something.

0002

[Conventional technology]

The pipe configuration of single-pipe drainage piping is to connect many drainage standpipes from the upper floor to the lower floor. It connects and penetrates like a main drainage pipe, and the sewage and miscellaneous water from the living area on each floor is carried through side branch pipes. The drainage system is designed to flow into the drainage standpipe, and the drainage from the side branch pipes on each floor is The receiving part consists of a tubular body with a larger diameter than the drainage standpipe, and a side branch pipe is attached to the circumferential side of the tubular body. A collecting pipe with a protruding joint is interposed in the middle of the drainage standpipe.

0003 The problem with this one-pipe drainage piping is that when the wastewater flows down inside the drainage standpipe, the As you descend from floor to floor, the air pressure inside the pipe fluctuates greatly, and drainage noise is generated. It is to live. Therefore, as a way to solve the above problems, conventionally, large-diameter tubular drainage collection was used. A spiral blade with a width that gradually narrows toward the beginning and end is placed on the inner circumferential surface of the pipe. A protruding shape has been proposed (see Japanese Patent Publication No. 18015/1983).

0004

[Problem that the idea aims to solve]

In the above conventional technology, when the drainage flow rate is small, the air in the drainage standpipe is It is possible to prevent an increase in pressure, lower the drainage speed, and reduce noise. deer However, when the drainage flow rate increases, the air pressure inside the pipe exceeds the standard value and reaches a dangerous value. However, it is difficult to say that this is sufficient in terms of reducing drainage speed and reducing noise, so it is necessary to install A backflow occurs against the water sealing part of the drainage equipment, etc., which is installed, and the drainage water overflows from the drainage equipment, etc. There are problems such as

[0005] This invention was made in view of the above-mentioned circumstances, and its purpose is to This ensures that air is removed from the drain pipe line, and the air pressure in the pipe is maintained even when the drain flow rate is high. To ensure stable drainage flow by reducing pressure fluctuations and noise by keeping it below the standard value. To provide a collection pipe for drainage piping that can be used.

[0006]

[Means to solve the problem]

In order to achieve the above object, the present invention takes the following technical measures. That is, in the present invention, a drainage standpipe consisting of two pipes is connected to both ends of the pipe in the axial direction. , a collecting pipe of drainage piping to which a horizontal branch pipe is connected in a direction perpendicular to the pipe axis, the collecting pipe Inside, a partition wall is provided that corresponds to the partition wall of the standpipe and is parallel to the pipe axis to allow communication with the drainage channel. The airway is divided into airways, and the junction of the horizontal branch pipes is provided on the drainage channel side. .

[0007] In addition, the present invention provides a ventilation section in the partition wall of the collecting pipe to communicate the drainage channel and the ventilation channel. The points are distinctive.

[0008]

[Effect]

According to the present invention, the drainage water flowing down from the drainage horizontal branch pipe is connected to the drainage standpipe. It flows into the drainage channel divided by the collecting pipe partition wall through the side branch pipe joint, and the drainage standpipe It flows down a drainage channel separated by a partition wall. The air in the drainage channel is It flows into the ventilation channel through the ventilation section installed in the cut wall, and the drainage flow increases and the drainage channel When the internal air pressure decreases, the air in the ventilation channel flows into the drainage channel through the vent and is discharged. There is little fluctuation in air pressure in the drainage channels of water stand pipes and collecting pipes, as well as in the drainage side branch pipes. Furthermore, the maximum pressure inside the pipe is maintained below the standard value, noise is reduced, and drainage Backflow from branch pipes to drainage equipment, etc. does not occur.

[0009]

【Example】

Hereinafter, embodiments of the present invention will be described based on the drawings. Figure 1 shows an example of one-pipe drainage piping, with 1, 2, 3, and 4 representing each floor of a building, and 5 6 indicates the drainage equipment such as flush toilets installed on each floor, and 6 indicates the drainage equipment connected to each drainage equipment 5. Water side branch pipe 7 is connected to the horizontal branch pipe 6 of each floor and is vertically straight to each floor 1 to 4. The collecting pipe 8 installed on the top connects each collecting pipe 7 into one drainage pipe via a joint 9. Connected and connected drainage standpipes, 10 is the horizontal main pipe installed at the lowest level, 11 is the leg bent pipe at the lowest level. It connects the layer collecting pipe 7 and the horizontal main pipe 10.

0010 As shown in FIG. 2, the drainage standpipe 8 is separated by a partition wall 12 parallel to the pipe axis. It consists of a two-way pipe in which two pipes are formed, one pipe is used as a drainage channel 13, and the other The pipe line is defined as the ventilation line 14. Further, as shown in FIGS. 2 to 4, the collecting pipe 7 has the vertical pipes 8 at both ends in the pipe axis direction. Standpipe joints 15, 16 with the same shape and size as the cross section are provided, and are parallel to the pipe axis. Moreover, a partition wall 17 is provided corresponding to the partition wall 12 of the standpipe 8, and the drainage channel 18 and the ventilation channel 14 are connected to each other. It is separated. The upper part of the collecting pipe 7 is arranged so that the drainage channel 18 side faces the partition wall 17. The drainage collection section 20 is shaped like a rectangular box that is widened in the direction of the pipe. A horizontal branch pipe joint 21 that communicates with the section 20 projects perpendicularly to each other, and is connected to the lower standpipe joint 16. The outer wall of the drainage channel 18 in the drainage collection section 20 is gradually reduced downward to ensure smooth drainage. It is arranged so that the flow is carried out.

[0011] A notch-shaped ventilation portion 22 is provided in the vertically intermediate portion of the collecting pipe partition wall 17 over the entire width. The upper end portion 17b of the lower partition wall protrudes toward the ventilation path 19 side of the ventilation section 22. It is also extended so as to overlap the lower end 17A of the upper partition wall with a gap, allowing ventilation. The air from the drainage channel 18 side and the ventilation channel 19 side passes through the section 22 and flows to each other as shown by the dotted line arrow in Fig. 2. This prevents waste water from flowing into the ventilation passage 19 side, allowing perfect air removal. ing.

0012 Note that the horizontal branch pipe joint 21 is designed to allow connection of a normal circular cross-section pipe. Ru. As shown in FIGS. 5 and 6, the joint 9 is tubular and passes through the center of the tube axis and extends along the tube axis. It has a partition wall 23 parallel to the pipe, and the two-pipe standpipe 8 and the partition wall 12 are inserted and fixed from both ends of the pipe. I-shaped fitting holes 24, 25 are provided in which the partition wall 12 is inserted. Packings 26 and 27 are fitted. Then, install a vertical pipe on either of the fitting holes 24 and 25. 8 and the pipe joint portions 15 and 16 of the collecting pipe 7 are fitted and fixed to the other side.

[0013] In the above embodiment, the waste water flowing down from the drainage horizontal branch pipe 6 is collected in the collecting pipe 7. It flows into the junction 20, passes through the drainage channel 18, flows down the drainage channel 13 of the drainage standpipe 8, and flows into the lower collection. The water flows sequentially down to the drainage channel 18 of the joint pipe 7 and the collecting part 20, passes through the bent leg pipe 11, and then from the side main pipe 10. It is discharged to a meeting place, etc. Drainage channels 13 and 18, etc. and ventilation channels 14 and 19 are Air circulates through the ventilation part 22 of the joint pipe 7, and the drainage flow rate increases, causing the drainage channels 13 and 18 to flow. When the internal air pressure decreases, the air in the ventilation passages 14 and 19 passes through the ventilation part 22 and flows into the collection part 20. The water flows into the drainage channel 13 from there. Therefore, inside the drainage channels 13 and 18 of the drainage standpipe 8 and the collecting pipe 7 Of course, the fluctuation of air pressure inside the drainage horizontal branch pipe 6 is small, and the maximum pressure inside the pipe is low. is maintained below the standard value, noise is reduced, and drainage pipes 6 to drainage equipment 5 No backflow occurs.

[0014] In the above example, the two-way pipe, the joint 9 and the collector pipe adopted as the drainage standpipe 8 7 is made of synthetic resin such as hard vinyl chloride, and the entire outer surface is covered with fiber mortar. It has a fireproof structure, and the collecting pipe 7 is connected to the drainage standpipe 8 through a joint 9 with adhesive. tied. According to the above embodiment, the drainage standpipe 8 and the collecting pipe 7 are connected to the joint 9 that connects the standpipe 8 to each other. The structure of the collecting pipe 7 is simple, easy to manufacture, and can be obtained at low cost. be able to.

[0015] Note that the ventilation section 22 formed in the partition wall 17 of the collecting pipe 7 is as shown in FIG. By bending the upper end portion 17C so as to protrude toward the air passage 19 side, the partition of the joint 9 can be Also, as shown in FIG. 8, the lower end 17D of the partition wall is bent so as to protrude toward the drainage channel 18 side, and a ventilation section 22 is formed between the joint 9 and the partition wall 23. can be formed.

[0016] Furthermore, as shown in FIG. It can be used as a joint part 15A for straight pipes, and can be connected using an adhesive. The present invention is not limited to the above-mentioned embodiments, but for example, the two pipes of the standpipe 8 The cross-sectional area of one ventilation channel 14 is made smaller than that of the drainage channel 13, and the partition wall 17 of the collecting pipe 7 is connected to this. In addition, a ventilation portion may be formed in the joint.

[0017]

[Effect of the idea]

As mentioned above, in this invention, a drainage standpipe consisting of two pipes is connected to both ends of the pipe in the axial direction. A collecting pipe for drainage piping in which a horizontal branch pipe is connected in a direction perpendicular to the pipe axis, A partition wall that corresponds to the partition wall of the standpipe and is parallel to the pipe axis is provided in the collecting pipe for drainage. It is characterized in that it is divided into a waterway and a ventilation channel, and a joint part of the horizontal branch pipe is provided on the drainage channel side. Because it is a pipe type, it is possible to form a drainage channel and a ventilation channel in one pipe, and it is possible to form a drainage channel and a ventilation channel with By forming an air section, air can circulate freely in the drainage channel and ventilation channel, reducing the air inside the pipe. It is possible to reduce fluctuations in air pressure and maintain the maximum pressure inside the pipe below the standard value. , prevents backflow from the drainage side branch pipe to drainage equipment, etc., and significantly reduces noise. This makes it possible to achieve a stable flow of wastewater.

[Brief explanation of drawings]

FIG. 1 is an overall front view showing an example of drainage piping to which the present invention is adopted.

FIG. 2 is a central vertical sectional view showing an embodiment of the present invention.

FIG. 3 is a sectional view taken along line AA in FIG. 2;

FIG. 4 is a sectional view taken along line BB in FIG. 2;

FIG. 5 is a central vertical cross-sectional view showing an example of a joint.

FIG. 6 is a top plan view of FIG. 5;

FIG. 7 is a sectional view of a main part showing another embodiment of the ventilation section.

FIG. 8 is a cross-sectional view of essential parts showing an example in which a ventilation portion is formed at the lower end of the collecting pipe.

FIG. 9 is a sectional view of a main part showing another embodiment of a standpipe joint of a collecting pipe.

[Explanation of symbols]

6 Drainage side branch pipe 7 Collecting pipe 8 Drain standpipe 12 Partition wall 17 Partition wall 18 Drainage Channel 19 Ventilation passage 21 Lateral branch pipe junction 22 Ventilation section

Claims (2)

[Scope of utility model registration request] Claim 1: A collection pipe of drainage piping, in which a drainage standpipe consisting of two pipes is connected to both ends in the pipe axis direction, and a horizontal branch pipe is connected in a direction perpendicular to the pipe axis, wherein is characterized in that a partition wall corresponding to the partition wall of the standpipe and parallel to the pipe axis is provided to divide the pipe into a drainage channel and a ventilation channel, and a joint part of the horizontal branch pipe is provided on the drainage channel side. Collection pipe for drainage piping. 2. The collecting pipe for drainage piping according to claim 1, wherein the partition wall of the collecting pipe is provided with a ventilation section that communicates the drainage channel and the ventilation channel.