JP4833789B2 - Drainage header and drainage device using it - Google Patents

Description

  The present invention relates to a drainage header used for collecting wastewater generated inside a house and discharging it to the outdoors, and a drainage device using the drainage header.

Conventionally, in a drainage device using a drainage header having one outlet, such as that described in Japanese Patent Application Laid-Open No. 2002-61247 (Publication 1), the outlet of the drainage header has one outlet in one direction. For this reason, there is a problem in that wastewater overflow or sufficient ventilation cannot be achieved from the structure, and odor is emitted.
On the other hand, in Japanese Unexamined Patent Publication No. 2003-147826, as an underfloor plumbing facility for drainage, an aggregate that drains the drainage pipe under the floor of a detached house in a concentrated manner is used. In addition, a bypass pipe is provided downstream of the drainage main pipe to be connected so that air in the pipe does not flow up and down to prevent breakage of the instrument trap.
Japanese Patent Laid-Open Nos. 2006-16779 and 2006-16780 disclose that an underfloor piping ventilation structure allows a drain pipe disposed under the floor to perform centralized collective drainage by a drainage header, and seals the amount of drainage. In order to prevent water destruction, there is provided a vent pipe provided between an upper portion of a drain header and a pipe joint that receives drainage from the drain header.
JP 2002-61247 A JP 2003-147826 A JP 2006-16779 A JP 2006-16780 A

The invention shown in the above-mentioned patent document 2 is connected to a plurality of drainage branch pipes and collects air having an accumulator function for receiving drainage, and then flows up and down in the pipeline downstream of the drainage main pipe to be connected. However, there is a problem in that it is difficult to ensure ventilation in the pipe in the amount of drainage concentrated in one drain pipe.
In the inventions shown in Patent Documents 3 and 4, a vent pipe is provided between the upper part of the drain header and a pipe joint that receives drainage from the drain header, as a vent structure for underfloor piping to prevent seal breakage. However, there is a problem that the construction cost is increased due to the provision of a ventilation pipe along with the normal drainage pipe, and there is a problem that the ventilation in the pipe is difficult to secure due to the amount of drainage concentrated in one drainage pipe. .

  Therefore, the present invention solves the above-described conventional problems, and even when drainage generated in a house is discharged to an outdoor drain pipe, the drainage is increased even when the drainage amount increases due to confluence or increases temporarily due to an increase in drainage. To prevent the pipe from being filled with water (full pipe), thus preventing the backflow of drainage and the generation of odor due to the disappearance of the air trap, and ensuring ventilation A drainage header and a drainage header that can smoothly drain water from the interior of the house to the outside of the house with a simple and compact configuration without providing a vent pipe or the like separately from the drain pipe. The issue is to provide drainage equipment.

In order to achieve the above object, the drainage header of the present invention is a drainage header used for collecting indoor drainage generated at various locations in a house and discharging it to an outdoor drain pipe, and is provided at the header body and both ends thereof. The header body is provided with a plurality of branch pipe connection ports for connecting the drain branch pipes for guiding the drainage generated at various locations in the house within the width dimension of the header body. The drainage received from the mouth is divided into both sides, and the discharge masses at both ends are directed to the inlet for receiving the drainage separated from the header body and the drainage received from the inlet toward the outdoor drainage pipe. The first feature is that a discharge port for discharging is provided.
In addition to the first feature described above, the drainage header according to the present invention has a second feature that the header body has a high center in the width dimension and is inclined toward both ends.
In addition to the first or second feature, the drainage header of the present invention has a third feature that the header main body is configured by coupling a plurality of pipe joints provided with branch pipe connection ports. .
Further, in the drainage header of the present invention, in addition to the first or second feature described above, the header body is connected to a water collection mass having a plurality of branch pipe connection ports and discharge masses at both ends from the water collection mass. A fourth feature is that it is constituted by a pair of connecting pipe joints.
Further, in addition to any of the first to fourth features, the drainage header of the present invention has a fifth feature that the discharge mass is a drop mass having a discharge port facing downward at the bottom.
Further, the discharge header of the present invention is characterized in that, in addition to any one of the first to fifth features, the header body and the discharge mass are provided with an inspection port with a screw lid facing upward.
Moreover, in addition to any of the first to sixth features, the drainage header of the present invention is provided with a toilet drain pipe connection port that can be directly connected to an indoor toilet drain pipe. Is the seventh feature.
Moreover, the drainage device of the present invention is a drainage device for discharging indoor wastewater generated in various places indoors to an outdoor drainage pipe, using the drainage header according to any one of claims 1 to 7, comprising: A drain branch pipe in the house is connected to the header body of the house, a discharge pipe for guiding drainage from the indoor to the outdoors is connected to each of the discharge masses at both ends of the header body, and this pair of discharge pipes Is connected to the outdoor drain pipe so as to be spaced apart from each other, so that the drainage header, the pair of discharge pipes, and the outdoor drain pipe form an annular path.

According to the drainage header of the first aspect, the drainage generated at various places in the house is received by the header body through the plurality of drainage branch pipes. Drainage that enters the header body from each branch pipe connection port is appropriately diverted to both sides of the header body, is received by discharge masses at both ends, and is discharged from the pair of discharge masses to an outdoor drainage pipe.
Drainage generated at various places in the room is collected in a drainage header, but the collected drainage is divided into two places at both ends and discharged to the outside, so that the discharge to the outdoors is prevented from being concentrated in one place. For this reason, it is prevented that the drainage becomes full in the discharge pipe, and the increase or decrease in the pressure in the pipe causes the drainage to flow backward. Further, the increase or decrease of the pressure in the pipe prevents the sealing water from being broken in the trap. Therefore, it is possible to prevent sewage and bad odors from flowing back into the room.
Further, the drainage header has a configuration in which drainage is dispersed in two directions and discharged by the header body and discharge masses provided at both ends thereof, so that the configuration can be made simple and compact. It is also useful in that it does not become full even if the pipe gradient at the penetration point of the building foundation is not gradual.
Of course, it is not necessary to install a special ventilation pipe to secure the ventilation in the discharge pipe and other pipes so that the exhaust pipe does not become full. No man-hours increase.

According to the drainage header according to claim 2, in addition to the effect of the configuration according to claim 1, the header body is configured such that the center in the width dimension of the pipe is high and is inclined toward both ends. Because
Drainage flowing into the header body from various parts of the header body is diverted to the other end side beyond the center when the water level of the drainage exceeds the center. Therefore, the waste water flowing in from the right side from the center of the header body basically flows to the right discharge mass and is discharged, and when the amount of inflow increases, the waste water flows to the left discharge mass after passing the center. The In addition, waste water flowing in from the left side of the central portion of the header body basically flows to the left discharge mass and is discharged, and when the amount of inflow increases, it flows over the central portion to the right discharge mass and is discharged. Therefore, by properly distributing and connecting the drainage branch pipes to the left and right positions within the width of the header body, indoor drainage can be discharged evenly into the left and right discharge masses of the header body during normal times. . Also, if the amount of drainage flowing into either the left or right side of the header body increases, a part of the drained drainage flows to the other side beyond the center, and the flow concentrates on one of the discharge masses. Can be alleviated.
Therefore, according to the drainage header of the second aspect, the drainage received connected to the drainage branch pipes from various places in the house can be appropriately diverted to the left and right to be discharged to the discharge masses on both sides. A sufficient ventilation space in the pipe can be ensured.

According to the drainage header of the third aspect, in addition to the effect of the configuration according to the first or second aspect, the header body is configured by connecting a plurality of pipe joints having branch pipe connection ports. Because
By changing and combining the number of pipe joints to be connected, the length of the drainage header and the number and arrangement of branch pipe connection ports (inlet) can be freely configured according to the increase or decrease in the number of drainage branch pipes to be connected. Can do. In addition, the drain branch pipes can be easily distributed and connected to the left and right of the central portion of the header body.
Furthermore, by adjusting the circumferential position of the branch pipe connection port of the pipe joint to be connected, it is possible to easily connect to the drainage branch pipes coming from various directions, and the drainage header with a large degree of freedom of connection Can be configured. In addition, by changing the number of pipe joints, it is possible to change the head of the gradient at the center and both the left and right ends, and to change the level of the water level that can be diverted into the header body.

According to the drainage header according to claim 4, in addition to the effect of the configuration according to claim 1 or 2, the header body includes a water collection mass having a plurality of branch pipe connection ports, and the water collection mass. Since it is constituted by a pair of connecting pipe joints connected to the discharge mass at both ends from
Since a plurality of drainage branch pipes can be connected in such a manner as to be aggregated into one water collecting mass, the drainage branch pipes can be easily aggregated, and the necessary piping space can be made compact and space-saving. In addition, since a plurality of drainage branch pipes can be collected and connected at one place, the connection work is simplified and facilitated accordingly. Of course, the drainage that has entered the collecting mass from each branch pipe is diverted from the collecting mass to both sides, so that the diversion is performed smoothly.

According to the drainage header of the fifth aspect, in addition to the effect of the configuration according to any one of the first to fourth aspects, the discharge mass is a drop mass having a discharge port provided downward at the bottom. ,
The waste water flowing into the discharge mass from the header body can be dropped downward as it is, and the backflow prevention to the header body can be effectively performed. Even if there is a large instantaneous flow rate of drainage, it has a drop shape (vertical drainage shape), so it is easy to ensure a vertical ventilation path. Of course, because it is a drop mass, a discharge pipe is connected to the discharge port at the bottom in the vertical direction, so even if the drop mass (drainage header) is placed close to the foundation of the building, The piping does not get in the way. That is, it is possible to save the space by arranging the drainage header and the periphery of the piping near the foundation of the building.

According to the drainage header of the sixth aspect, in addition to the effect of the configuration according to any one of the first to fifth aspects, since the header body and the discharge mass are provided with an inspection port with a screw lid facing upward,
When inspecting the header body and the discharge mass provided under the floor, the inspection opening can be easily opened by putting a hand on the floor and turning the screw cover of the inspection opening. Since it is a screw lid, unlike the open / close lid, it is possible to remove the screw lid and open it sideways with only a slight gap between the floor and the inspection port. Therefore, space saving can be achieved. Further, since the screw lid is used, even when the internal pressure in the header main body or the discharge mass rises, it is difficult to come off compared to the case of the open / close lid.

According to the drainage header of claim 7, in addition to the effect of the configuration according to any one of claims 1 to 6, the drainage mass can be directly connected to an indoor toilet drainpipe. Since there is a connection port for pipes
Toilet wastewater, which is used relatively often and has a large instantaneous water consumption, can be directly discharged to the discharge mass and quickly discharged as it is. Therefore, inconvenience due to the header body being filled with a large amount of toilet drainage can be avoided.

According to the drainage device of the eighth aspect, the discharge pipe is connected to each of the discharge masses at both ends of the drain header, and the pair of discharge pipes are connected to the outdoor drain pipe so as to be separated from each other. Thus, an annular path is constituted by the drain header, the pair of discharge pipes, and the outdoor drain pipe. Therefore, even if the path from one discharge mass through the discharge pipe to the outdoor drain pipe is blocked in a full state, the other discharge mass passes through the discharge pipe to the outdoor drain pipe. Since the air in the outdoor drain pipe can reach the header body via the path, it is avoided that the header body is full.
Of course, since the wastewater flowing into the header body is divided into both sides and discharged from the discharge mass, the amount of drainage from each discharge mass is basically reduced, and it is avoided that the discharge pipe becomes full.
Therefore, the possibility of the exhaust pipe becoming full can be basically reduced, so even if the exhaust mass is connected to the outdoor drain pipe with a small bend pipe, the risk of full pipe is avoided. It is also possible to save space by the small bent pipe or the like.
Further, it is possible to prevent the header main body and the drainage branch pipe from being adversely affected by a full pipe such as backflow and bad odor.

Embodiments of the present invention will be described in detail with reference to the following drawings.
1 to 4 show a first embodiment of the present invention, FIG. 1 is a front view showing a configuration of a drainage header and a drainage device using the drainage header according to the first embodiment, and FIG. -A drainage header is shown by the arrow A. 3 is an exploded view showing a part of the drainage header, and FIG. 4 is a view taken along the line BB in FIG.

In the present invention, the drainage header can be described as a collecting and delivering main pipe device used for receiving drainage from one or more drainage branch pipes and flowing it to one or more downstream drainage pipes.
First, referring to FIG. 1 and FIG. 2, the drainage header 1 in the first embodiment of the present invention is used for collecting drainage generated in various places in the house and discharging it to an outdoor drain pipe. For example, it is arrange | positioned under the floor etc. of a house, etc., and consists of the header main body 10 and the discharge | emission masses 20 and 30 provided in the both ends.
The header body 10 is connected to a plurality of drainage branch pipes 40 for guiding drainage generated at various locations in the house.
Further, discharge pipes 50 and 50 are connected to the discharge masses 20 and 30. The pair of discharge pipes 50 and 50 are connected to the outdoor masses 61 and 62 of the outdoor drain pipe 60. A toilet drain pipe 70 is connected to the one discharge mass 20.

The drainage header 1 is configured to have a slight downward gradient toward both ends, with the central portion 1a in the width dimension of the header body 10 as the center. An inspection port 1b is provided in the central portion 1a.
The header body 10 is configured by connecting a central pipe joint 11, a side pipe joint 12, and a short pipe joint 13 (see FIG. 3) to each other.

A central portion 1 a of the drainage header 1 (header body 10) is composed of a central pipe joint 11.
The central pipe joint 11 is a diversion hole pipe joint that divides the drainage from the center to the left and right within the pipe, and an upward connection port 11a that serves as the inspection port 1b is provided on the upper surface of the center. An inspection screw lid 11b that is detachably screwed into the connection port 11a is provided.
Connection receiving ports 11 c and 11 c are provided on both the left and right sides of the central pipe joint 11.
The central pipe joint 11 is formed so that the flow dividing holes have a slight downward gradient from the center toward both ends. The gradient can be, for example, a gradient of 1/100 to 10/100. That is, the header body 10 has a gradient of about 1/100 to 1/100 from the central portion 1a toward both sides. As the degree of the gradient, an appropriate gradient is adopted according to the inner diameter and width dimension of the pipe of the header body 10, the degree of the amount of drainage flowing into the header body 10, and other conditions.

Referring also to FIG. 3, the side pipe joint 12 is provided with one branch pipe connection port 12a on its wall surface, and is configured to be connected to a drain branch pipe 40 that guides drainage generated at various places in the house. . The side pipe joint 12 has one end side of the pipe as a connection insertion port 12b and the other end side as a connection receiving port 12c.
Both ends of the short pipe joint 13 serve as connection insertion holes 13 a, and the connection insertion holes 13 a and 13 a at both ends are the connection reception openings 11 c of the central pipe connection 11 and the connection reception openings of the side pipe connection 12. 12c, or is inserted into the inlet 21 of the discharge mass 20 to achieve the connection.
The side pipe joint 12 can be easily connected to the drainage branch pipe 40 coming from various directions by adjusting the circumferential position of the branch pipe connection port 12a and connecting to the connection partner. Can be achieved.

  In the first embodiment, the side pipe joints 12 and 12 are connected to both sides of the central pipe joint 11, the side pipe joints 12 and 12 are connected to both sides thereof, and the short pipe joints 13 and 13 are further connected. To the discharge masses 20 and 30. Of course, the number of side pipe joints 12 can be changed and adjusted according to the number of drainage branch pipes 40. Moreover, the header main body 10 of various length as needed can be comprised by changing the use number of the side part pipe joint 12 and the short pipe joint 13. FIG. It is also possible to adjust the number of side pipe joints 12 and short pipe joints 13 for changing and adjusting the gradient drop from the center 1a of the header body 10 to both ends.

The discharge masses 20 and 30 provided at both ends of the header main body 10 are inlets 21 and 31 for receiving drainage separated from the header main body 10 and downward discharge ports 22 for discharging to the outdoor drainage channel side at the bottom. 32 is provided.
The inlets 21 and 31 are configured as connection receptacles that receive the short pipe joint 13 of the header body 10. Moreover, the said discharge ports 22 and 32 are comprised as a connection receiving port connected with the discharge pipe 50 mentioned later.
Inspection ports 23 and 33 are provided upward on the drainage masses 20 and 30, and screw lids 24 and 34 for opening and closing the inspection ports 23 and 33 are provided.
When the screw lids 24 and 34 are used as the opening / closing means of the inspection ports 23 and 33, space is saved because there is no space for opening and closing the screw lids. The same applies to the screw lid 11b of the inspection port 1b of the header body 10.

  One discharge mass 20 is provided with a toilet drain pipe connection port 25. The connection port 25 is connected to the toilet drain pipe 70. As a result, the toilet drain pipe 70 is separated from the other drain branch pipes 40 connected to the header body 10 and is directly connected to the discharge mass 20 so that a large amount of drainage, solids, etc. from the toilet are collected. It becomes possible to discharge the contained wastewater to the outdoor drainage pipe 60 more directly and promptly.

  In the present embodiment, the discharge masses 20 and 30 are drop masses, and the discharge ports 22 and 32 are provided downward at the bottom. As a result, the wastewater that has flowed into the discharge masses 20 and 30 falls downward in the space in the masses and is further discharged downward from the discharge ports 22 and 32. By making the discharge mass a drop mass, the waste water flowing into the discharge mass can be dropped as it is, so that the backflow to the header body 10 can be effectively prevented. Even if there is a large instantaneous flow rate of drainage, it has a drop shape (vertical drainage shape), so it is easy to ensure a vertical ventilation path.

The discharge pipes 50 and 50 are connected to the discharge ports 22 and 32 of the discharge masses 20 and 30, respectively. The discharge pipes 50 and 50 are connected to an outdoor drain pipe 60 that passes through the foundation F of the house and is piped under the outdoor ground G.
Referring to FIG. 4, the discharge pipe 50 can be configured using an elbow pipe 51, a horizontal pipe 52, a vertical pipe 53, a short pipe joint 54 (see FIG. 3), and other pipes. By using elbow pipes 51 that can bend the pipes at key points, it is possible to provide a difference in height between the pipes from the indoor to the outdoor so that the drainage flows without accumulating.
In the above case, the elbow pipe 51 can be a small-bend elbow pipe having a small curvature radius of curvature. By using a small bend elbow pipe, it is possible to save the space for the piping, and it is possible to arrange the header body 10 and the discharge masses 20 and 30 at positions close to the foundation of the house. In the drainage device of the present invention, it is possible to sufficiently prevent the pipe from being full, so that a space-saving arrangement is possible using the small bend elbow pipe as described above.

The discharge pipes 50, 50 are connected to a pair of outdoor masses 61, 62 disposed on the outdoor drain pipe 60 so as to be spaced apart from each other.
The outdoor masses 61 and 62 are provided with inflow ports 61a and 62a that are connected to the discharge pipes 50 and 50 and receive drainage at the lower center. Further, connection ports 61b and 62b with the outdoor drain pipe 60 are provided.
Moreover, the outdoor masses 61 and 62 are provided with inspection ports 61c and 62c facing the ground G and lids 61d and 62d at the upper part thereof.

  In the drainage device according to the first embodiment of the present invention, the drainage header 1, the pair of drainage pipes 50, 50 and the outdoor drainage pipe 60 are combined to form an annular circulation path having four sides. The That is, the header body 10, the discharge pipes 50 and 50, and the outdoor drain pipe 60 constitute four sides, and the discharge masses 20 and 30 and the outdoor masses 61 and 62 are arranged at the corners of the four sides, respectively. By configuring such a circulation path, a loop-shaped ventilation space can be formed. Therefore, even if the drainage is temporarily clogged in one of the discharge pipes 50 and becomes full, the air in the header body 10 passes through the other discharge pipes 50 remaining from the outdoor drainage pipe 60 at that time. And the header main body 10 and further the drainage branch pipe 40 upstream thereof are surely prevented from becoming full. Therefore, the disappearance of the air trap in the pipe can be avoided, and the generation of odor or the like can be prevented.

  With the configuration as described above, the drainage header 1 and the drainage device using the drainage header can form an annular path of the drainage channel so that the drainage can be divided and discharged to the left and right. It can be collected and discharged quickly to an outdoor drainage channel without becoming full on the way. Even if the amount of drainage flowing into the header body 10 from the plurality of drainage branch pipes 40 is uneven, the drained water is diverted through the header body 10 to the other side beyond the central portion 1a and drained into one discharge pipe. Therefore, a favorable ventilation space can always be created in the pipe.

A second embodiment of the present invention will be described with reference to FIGS.
FIG. 5 is a front view showing a configuration of a drainage header and a drainage device using the drainage header according to the second embodiment of the present invention, and FIG. 6 is a view taken along the line CC of FIG.
In this embodiment, the header main body 100 which comprises the waste_water | drain header 1 differs from the header main body 10 in 1st Embodiment. Other configurations are the same as those in the first embodiment. The same members as those used in the first embodiment are denoted by the same reference numerals and description thereof is omitted.

The header body 100 is constituted by a water collection mass 110 and a pair of connecting pipe joints 120 and 120.
In the present embodiment, one water collecting mass 110 is provided in the central portion of the header body 100, and a plurality of (four in this embodiment) branch pipe connection ports 110a are provided on the upper side surface thereof. Connection with the drainage branch pipe 40 is made possible. A screw cap 110b for inspection that is detachably screwed onto the upper surface of the water collecting mass 110 is provided.
In addition, a pair of connection receiving ports 110 c and 110 c are provided on the lower side surface of the water collecting mass 110.
The connecting pipe joint 120 is connected to the pair of connection receiving ports 110c, and the connecting pipe joint 120 is connected to the inlets 21 and 31 of the discharge masses 20 and 30, respectively.
The pair of connecting pipe joints 120 are piped so as to have a slight downward gradient from the drainage mass 110 at the center of the header body 100 toward the discharge masses 20 and 30 at both ends. The degree of the gradient is the same as that in the first embodiment.
The drainage that has flowed into the collecting mass 110 from each drainage branch pipe 40 falls downward in a merged form, and is diverted from the pair of connection receiving ports 110c on both sides to the connecting pipe joint 120 to be discharged into the discharge masses 20 and 30. Flowing into.
According to the second embodiment, since a plurality of drainage branch pipes 40 can be connected in such a manner as to be aggregated into one water collecting mass 110, the drainage branch pipes 40 can be easily aggregated, and the necessary piping space. Can be made compact and space-saving. Further, since a plurality of drainage branch pipes are collected in one place and can be connected together, the connection work becomes easier and easier. Of course, since the wastewater that has entered the collecting mass 110 from each drainage branch pipe 40 is diverted from the collecting mass 110 to both sides, the diversion is performed smoothly.

It is a front view which shows the structure of the waste_water | drain header which concerns on the 1st Embodiment of this invention, and the drainage device using the same. A drainage header is shown in the AA arrow view of FIG. It is an exploded view which shows a part of drainage header. It is a BB arrow line view of FIG. It is a front view which shows the structure of the waste_water | drain header which concerns on the 2nd Embodiment of this invention, and the waste_water | drain apparatus using the same. A drain header is shown in the CC arrow view of FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Drain header 1a Center part 1b Inspection port 10 Header main body 11 Central pipe joint 11a Upward connection port 11b Screw cover 11c Connection receptacle 12 Side part coupling 12a Branch pipe connection port 12b Connection insertion port 12c Connection receptacle 13 Short tube Joint 13a Connection port 20, 30 Discharge mass 21, 31 Inlet port 22, 32 Discharge port 23, 33 Inspection port 24, 34 Screw cover 25 Toilet drain pipe connection port 40 Drain branch pipe 50 Drain pipe 51 Elbow pipe 52 Horizontal pipe 53 Vertical pipe 54 Short pipe joint 60 Outdoor drain pipe 61, 62 Outdoor mass 61a, 62a Inlet 61b, 62b Connection port 61c, 62c Inspection port 61d, 62d Lid 70 Toilet drain pipe 100 Header body 110 Water collecting mass 110a Branch pipe connection Port 110b Screw cap for inspection 110c Connection socket 120 Joint fitting

Claims (8)

  A drainage header used for collecting indoor drainage generated at various locations in a house and discharging it to an outdoor drain pipe, comprising a header body and discharge masses provided at both ends thereof, the header body having a width Within the dimensions, a plurality of branch pipe connection ports for connecting each drainage branch pipe for guiding drainage generated at various places in the house is provided, and the drainage received from each connection port is divided into both sides, The discharge masses at both ends are configured to have an inlet for receiving the wastewater separated from the header main body and a discharge port for discharging the wastewater received from the inlet toward the outdoor drain pipe. Characteristic drainage header.   The drainage header according to claim 1, wherein the header body has a configuration in which a center in a width dimension thereof is high and is inclined toward both ends.   The drainage header according to claim 1 or 2, wherein the header body is configured by coupling a plurality of pipe joints provided with branch pipe connection ports.   The header main body is constituted by a water collecting mass having a plurality of branch pipe connection ports and a pair of connecting pipe joints connected from the water collecting mass to discharge masses at both ends. Or the drainage header of 2.   The drainage header according to any one of claims 1 to 4, wherein the discharge mass is a drop mass in which a bottom is provided with a discharge port facing downward.   The drainage header according to any one of claims 1 to 5, wherein an inspection port with a screw lid is provided upward in the header body and the discharge mass.   The drainage header according to any one of claims 1 to 6, wherein the discharge mass is provided with a connection port for a toilet drainage pipe that can be directly connected to an indoor toilet drainage pipe.   A drainage device for draining indoor drainage generated in various places indoors to an outdoor drain pipe using the drainage header according to any one of claims 1 to 7, wherein A drain pipe for connecting drainage pipes for guiding drainage from indoor to outdoor to each of the discharge masses at both ends of the header body, and connecting the pair of discharge pipes to the outdoor drain pipe. A drainage device characterized in that an annular path is configured by the drainage header, the pair of drainage pipes, and the outdoor drainage pipe by being connected apart from each other.

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