JP7014766B2 - Drainage structure and siphon drainage system - Google Patents

Description

The present disclosure relates to drainage structures and siphon drainage systems.

Japanese Patent No. 4927450 discloses a drainage system in which a temporary drainage tank is connected between a water supply such as a bathtub or a washing place and a siphon drainage pipe. This temporary storage tank is arranged in the underfloor space between the slab and the floor surface. Further, the drain pipe of the bathtub is connected to the drain trap of the washing place, and the water of the bathtub is drained through the drain pipe of the washing place.

When draining from the bathtub, the water in the bathtub becomes a pool drainage, so a large amount of drainage flows into the drainage pipe. Since the diameter of the siphon drainage pipe is smaller than that of the conventional gradient pipe, the drainage from the tub may overflow to the washing place through the drainage trap of the washing place until the siphon force is generated in the siphon drainage pipe. Therefore, a temporary storage tank as in the above-mentioned conventional example has been devised.

However, in order to secure the capacity of the temporary storage tank, the temporary storage tank needs to have a certain height, and it is necessary to secure an underfloor space according to this height. Therefore, it is difficult to lower the floor when a temporary storage tank is provided.

It is an object of the present disclosure to provide a drainage structure and a siphon drainage system capable of further lowering the floor.

The drainage structure consists of a first water-related device in which the drainage is drained after storage, a second water-related device in which the drainage is continuous drainage without storage, and the first water-related device. A first drain trap provided in the drain section of the above, a second drain trap provided in the drain section of the second water supply device, a downstream portion of the first drain trap, and a downstream portion of the second drain trap. A first bypass pipe connecting to a side portion and having at least a part of a pipeline located above both the first drain trap and the second drain trap, and the first drain trap and the first bypass pipe. It has a first siphon drain pipe connected to the downstream side of the above, and a second siphon drain pipe connected to the downstream side of the second drain trap and the first bypass pipe.

The siphon drainage system has a drainage stand pipe arranged in the vertical direction of the building and a drainage structure, and the first siphon drainage pipe and the second siphon drainage pipe are laterally drawn to drain drainage in the lateral direction. It has a pipe and a vertical pipe connected to the drainage stand pipe and flowing drainage from the horizontal pulling pipe downward.

According to the drainage structure and the siphon drainage system according to the present disclosure, it is possible to provide a siphon drainage system capable of further lowering the floor.

It is sectional drawing which shows the outline of the siphon drainage system which concerns on 1st Embodiment. It is a perspective view which shows the drainage structure which concerns on 1st Embodiment. It is sectional drawing which shows the initial stage at the time of drainage from a bathtub in the drainage structure which concerns on 1st Embodiment. It is sectional drawing which shows the drainage state after the siphon force is generated. It is sectional drawing which shows the drainage state from a washing place in the drainage structure which concerns on 1st Embodiment. It is an exploded perspective view which shows the structure which made the apron of a bathtub removable in the drainage structure in 1st Embodiment. It is a perspective view which shows typically the drainage structure which concerns on 2nd Embodiment. It is a perspective view which shows typically the drainage structure which concerns on 3rd Embodiment. It is a perspective view which shows typically the drainage structure which concerns on 4th Embodiment. It is a perspective view which shows typically the drainage structure which concerns on Reference Example 1. It is a perspective view which shows typically the drainage structure which concerns on Reference Example 2. It is sectional drawing which shows the drainage structure which concerns on 5th Embodiment. It is sectional drawing which shows the drainage structure which concerns on 6th Embodiment.

Hereinafter, embodiments for carrying out the present invention will be described with reference to the drawings.

[First Embodiment]
In FIG. 1, the siphon drainage system 10 according to the present embodiment has a drainage stand pipe 14 and a drainage structure 16.

The drainage pipe 14 penetrates the through hole 25 of the floor slab 24 of the building 15. The drainage stand pipe 14 is provided with a drainage joint 28 for connecting the vertical pipes 31B and 32B described later, and drainage from the upper drainage stand pipe 14 and water-related equipment such as a bathtub 11 and a washing place 12 described later. It is configured to merge with the drainage from. In addition, in FIG. 1, the configuration of the connection portion of each pipe such as a pipe joint is shown by omitting it as appropriate.

(Drainage structure)
The drainage structure 16 includes a tub 11 as an example of a first water-related device, a washing place 12 as an example of a second water-related device, a first drain trap 21, a second drain trap 22, and a first bypass pipe 18. It has a first siphon drainage pipe 31 and a second siphon drainage pipe 32.

The bathtub 11 is an example of a water supply device used by storing water 20, and the drainage is a pool drainage drainage that is drained after the water is stored. The washing place 12 is an example of a water supply device, and the drainage is continuous drainage without water storage. The bathtub 11 and the washing place 12 are adjacent to each other with a gap S. The bathtub 11 and the washing place 12 may be integrated with each other as shown in the figure, or may be separate from each other.

The first drain trap 21 and the second trap 22 are so-called water-sealed traps for preventing backflow of odors and gases. The first drain trap 21 is provided in the drain portion 41 of the bathtub 11. The second drain trap 22 is provided in the drain portion 42 of the washing place 12.

The first bypass pipe 18 is a pipe body that connects the drain pipe 51, which is an example of the downstream portion of the first drain trap 21, and the drain pipe 52, which is an example of the downstream portion of the second drain trap 22. The first bypass pipe 18 is provided in the gap S between the bathtub 11 and the washing place 12 so as not to be visible to the user during normal use. By providing the first bypass pipe 18 in the gap S, the space can be effectively used. The first bypass pipe 18 may be provided in another portion such as between the bathroom and the wall of the building (not shown).

At least a part of the pipeline in the first bypass pipe 18, for example, the uppermost portion 18H, is located above both the first drain trap 21 and the second drain trap 22. Here, "above both the first drain trap 21 and the second drain trap 22" means above the upper surface 21A of the first drain trap 21 and above the upper surface 22A of the second drain trap 22. The first bypass pipe 18 is formed, for example, in an inverted U shape, and is a connection portion between the vertical pipe portion 18A on the first drain trap 21 side, the vertical pipe portion 18B on the second drain trap 22 side, and the vertical pipe portions 18A and 18B. It has 18D. The connection portion 18D extends, for example, in the horizontal direction. The uppermost portion 18H is the bottom surface of this pipeline, and the bottom surface is located above both the first drain trap 21 and the second drain trap 22. If the height of the bottom surface of the pipeline at the connecting portion 18D is not constant, the highest position is the uppermost portion 18H. Although the uppermost portion 18H is mentioned as at least a part of the pipeline of the first bypass pipe 18, the portion other than the uppermost portion 18H is located above both the first drain trap 21 and the second drain trap 22. You may be doing it.

The drain pipe 51 includes an upper horizontal pipe portion 51A extending laterally from the first drain trap 21 and joining the vertical pipe portion 18A of the first bypass pipe 18, and a vertical pipe portion 51B extending downward from the lower end of the vertical pipe portion 18A. It has a lower horizontal pipe portion 51C extending laterally from the lower end of the vertical pipe portion 51B. Similarly, the drain pipe 52 has an upper horizontal pipe portion 52A extending laterally from the second drain trap 22 and joining the vertical pipe portion 18B of the first bypass pipe 18, and a vertical pipe extending downward from the lower end of the vertical pipe portion 18B. It has a portion 52B and a lower horizontal pipe portion 52C extending laterally from the lower end of the vertical pipe portion 52B. The configuration of the drain pipes 51 and 52 is not limited to this, and any configuration may be used as long as the drain can be drained from the first drain trap 21 and the second drain trap 22, respectively.

The first bypass pipe 18 is provided with an intake valve 30. The intake valve 30 is a component for allowing air from the outside to pass through the first bypass pipe 18 and preventing drainage and air from passing from the first bypass pipe 18 to the outside. The intake valve 30 is provided, for example, at the upper end of the extension portion 18C of the vertical pipe portion 18A. Including the extension portion 18C, it can be said that the first bypass tube 18 is formed in the shape of a mirror writing in which the h-shape is inverted. When the first bypass pipe 18 is viewed from the opposite side, it has an h-shape. The intake valve 30 may be provided at the connection portion 18D in the first bypass pipe 18. Further, the extension portion 18C and the intake valve 30 may be provided above the vertical pipe portion 18B.

It is desirable that the height position of the uppermost portion 18H of the pipeline in the first bypass pipe 18 is equal to or higher than the height position of the standard head H of the water 20 stored in the bathtub 11. The reference of the head H is, for example, the bottom of the bathtub 11. The standard head H corresponds to the amount of hot water stored in the bathtub 11 when a person takes a bath, for example, the amount of hot water that does not overflow from the bathtub 11 when a person sits in the bathtub 11. The uppermost portion 18H is the maximum height at which overflow does not occur between the vertical pipe portions 18A and 18B in the first bypass pipe 18, and corresponds to the height of the bottom surface of the connecting portion 18D.

In FIG. 2, the first siphon drain pipe 31 is connected to the downstream side of the first drain trap 21 and the first bypass pipe 18. Further, the second siphon drain pipe 32 is connected to the downstream side of the second drain trap 22 and the first bypass pipe 18.

Specifically, in FIG. 1, the first siphon drainage pipe 31 is connected to the end of the lower horizontal pipe portion 51C of the drainage pipe 51. Further, the first siphon drainage pipe 31 has a horizontal pulling pipe 31A that allows drainage to flow in the lateral direction, and a vertical pipe 31B that is connected to the drainage stand 14 and allows drainage from the horizontal pulling pipe 31A to flow downward. Further, the second siphon drainage pipe 32 has a horizontal pulling pipe 32A that allows drainage to flow in the lateral direction, and a vertical pipe 32B that is connected to the drainage stand 14 and allows drainage from the horizontal pulling pipe 32A to flow downward. The lower ends of the vertical pipes 31B and 32B are connected to the drainage joint 28. In FIG. 1, the first siphon drainage pipe 31 is arranged in parallel on the inner side of the second siphon drainage pipe 32.

As shown in FIG. 6, in the drainage structure 16, the apron 40 constituting the side surface of the washing place 12 on the bathtub 11 side may be detachably configured. In this case, by removing the apron 40, maintenance of the drainage structure 16 can be easily performed.

(Action)
This embodiment is configured as described above, and its operation will be described below. In FIG. 3, in the drainage structure 16 according to the present embodiment, since the drainage from the bathtub 11 is the accumulated drainage drainage that is drained after the water is stored, more drainage is drained at once as compared with the drainage from the washing place 12. Will be done. The drainage from the tub 11 flows to the first siphon drain pipe 31 through the upper horizontal pipe portion 51A, the vertical pipe portion 51B, and the lower horizontal pipe portion 51C of the drain pipe 51 through the first drain trap 21 (arrow A). direction). Excess drainage flows into the first bypass pipe 18 (in the direction of arrow B) until a siphon force is generated in the first siphon drain pipe 31. The air in the first bypass pipe 18 is pushed out toward the second drain trap 22 as the drainage flows in (direction of arrow C).

Since the first bypass pipe 18 is formed in an inverted U shape and the uppermost portion 18H of the pipe line is located above both the first drain trap 21 and the second drain trap 22, it flows into the first bypass pipe 18. It is difficult for the drainage to flow to the second drain trap 22 side. In particular, when the height position of the uppermost portion 18H of the pipeline in the first bypass pipe 18 is equivalent to the height position of the standard head H of the water stored in the bathtub 11, the vertical pipe portion 18A is used. Overflow to the vertical pipe portion 18B is unlikely to occur. An overflow may occur to the extent that the sealing water of the second drain trap 22 is not broken.

In FIG. 4, when a siphon force is generated in the first siphon drainage pipe 31, the drainage from the bathtub 11 and the drainage flowing into the first bypass pipe 18 are promptly discharged through the first siphon drainage pipe 31 (arrow A). Direction), the water level of the bathtub 11 decreases (direction of arrow D). At this time, since the outside air is taken into the first bypass pipe 18 from the intake valve 30 (direction of arrow E), the negative pressure on the second drain trap 22 side is suppressed. Therefore, the water seal of the second drain trap 22 is not broken.

As described above, according to the drainage structure 16, it is possible to prevent the accumulated drainage from the bathtub 11 from overflowing to the washing place 12 without using the conventional temporary storage tank.

On the other hand, in FIG. 5, the drainage from the washing place 12 is continuous drainage without water storage. The drainage from the washing place 12 flows to the second siphon drain pipe 32 through the upper horizontal pipe portion 52A, the vertical pipe portion 52B, and the lower horizontal pipe portion 52C of the drain pipe 52 through the second drain trap 22 (arrow F). direction). Since the air in the pipeline of the first bypass pipe 18 is pushed out to the first drain trap 21 side through the first bypass pipe 18 (direction of arrow G), drainage from the washing place 12 is smoothly performed. In the case of continuous drainage, since there is almost no head, drainage does not flow into the vertical pipe portion 18B of the first bypass pipe 18. When a siphon force is generated in the second siphon drain pipe 32, the drainage from the washing place 12 is promptly discharged through the second siphon drain pipe 32 (direction of arrow A). At this time, if the drainage is from only the washing place 12, a negative pressure is hardly generated in the first bypass pipe 18, but when a negative pressure is generated in the first bypass pipe 18 such as at the time of simultaneous drainage with the bathtub 11. Since the outside air is taken into the intake valve 30, the sealing water of the first drain trap 21 and the second drain trap 22 is not broken.

In FIG. 1, in the siphon drainage system 10 according to the present embodiment, drainage from the bathtub 11 can be drained to the drainage stand pipe 14 through the horizontal pull pipe 31A and the vertical pipe 31B included in the first siphon drainage pipe 31. Further, in the siphon drainage system 10, drainage from the washing place 12 can be drained to the drainage stand pipe 14 through the horizontal pull pipe 32A and the vertical pipe 32B included in the second siphon drainage pipe 32.

As described above, according to the drainage structure 16 and the siphon drainage system 10 according to the present embodiment, the temporary storage tank as in the conventional case is not required, so that the installation place of the bathtub 11 or the like where the drainage is drained is further lowered. Flooring is possible.

[Second Embodiment]
In FIG. 7, the drainage structure 26 according to the present embodiment has auxiliary chambers 71 and 72 in at least one of, for example, both of the downstream portion of the first drain trap 21 and the downstream portion of the second drain trap 22. There is. The auxiliary chamber 71 is provided on the downstream side of the first drain trap 21. The auxiliary chamber 72 is provided in a portion downstream of the second drain trap 22.

The auxiliary chambers 71 and 72 are, for example, large diameter portions (inner diameter enlarged portions) provided in the drain pipes 51 and 52, respectively. The height dimension of the auxiliary chambers 71 and 72 is set smaller than that of the conventional temporary storage tank, and is arranged in the space required for arranging the first drain trap 21, the second drain trap 22, and the drain pipes 51 and 52. It is said to be as large as possible. Therefore, no extra underfloor space is required for the installation of the auxiliary chambers 71 and 72.

In the illustrated example, the auxiliary chambers 71 and 72 are both arranged on the upstream side of the first bypass pipe 18, but one or both of the auxiliary chambers 71 and 72 are located on the downstream side of the first bypass pipe 18. It may be arranged.

In the drainage structure 26, the auxiliary chambers 71 and 72 can receive excess drainage exceeding the capacity of the first bypass pipe 18. When the water pumped from the bathtub 11 (FIG. 1) is used in the washing place 12 (FIG. 1), a larger amount of water than usual is discharged from the washing place 12. Even in such a case, by receiving the drainage in the auxiliary chambers 71 and 72, it is possible to prevent the drainage from the washing place 12 from being delayed. In addition, it is possible to cope with a larger amount of accumulated drainage from the bathtub 11.

Since the other parts are the same as those in the first embodiment, the same parts are designated by the same reference numerals and the description thereof will be omitted.

[Third Embodiment]
In FIG. 8, in the drainage structure 36 according to the present embodiment, a ventilation pipe 74 instead of the intake valve 30 (FIG. 2) is connected to the first bypass pipe 18. The ventilation pipe 74 extends to, for example, the outside of the building, and the end 74A is open to the atmosphere.

In this drainage structure 36, since the ventilation pipe 74 is provided instead of the intake valve 30 (FIG. 2), the space for arranging the intake valve 30 becomes unnecessary.

When a siphon force is generated in the first siphon drain pipe 31, the outside air is taken into the first bypass pipe 18 from the ventilation pipe 74, so that the sealing water of the second drain trap 22 is not broken. Even when a siphon force is generated in the second siphon drain pipe 32, the outside air is taken into the first bypass pipe 18 from the ventilation pipe 74, so that the water seal of the first drain trap 21 is not broken.

Since the other parts are the same as those in the first embodiment, the same parts are designated by the same reference numerals and the description thereof will be omitted.

[Fourth Embodiment]
In FIG. 9, the drainage structure 46 according to the present embodiment has other drainage traps 83, 84, siphon drainage pipes 93, 94, individual ventilation pipes 103, 104, a header 80, and a combined flow air pipe 90. is doing.

The other drain trap 83 is provided for the drain portion (not shown) of the washing machine, which is an example of other water-related equipment. The other drain trap 84 is provided for a washbasin, which is an example of other water-related equipment. The other drain traps 83 and 84 are so-called water-sealed traps for preventing backflow of odors and gases.

A drain pipe 113 is connected to the downstream side of the other drain trap 83. The siphon drainage pipe 93 is connected to the downstream side of the drainage pipe 113. Further, a drain pipe 114 is connected to the downstream side of the other drain trap 84. The siphon drainage pipe 94 is connected to the downstream side of the drainage pipe 114.

One end of the individual ventilation pipe 103 is connected to a downstream portion (drainage pipe 113) of the other drain trap 83. Further, one end of the individual ventilation pipe 104 is connected to a downstream portion (drainage pipe 114) of the other drain trap 84. The other ends of the individual ventilation pipes 103 and 104 are connected to the header 80, respectively.

The header 80 is a pipe joint to which the ventilation pipe 74 and the individual ventilation pipes 103 and 104 are connected. The combined distribution trachea 90 is connected to the header 80 and is open to the atmosphere. Specifically, the combined distribution trachea 90 extends to, for example, the outside of the building, and the terminal 90A is open to the atmosphere.

In this drainage structure 46, since the ventilation pipe 74 and the individual ventilation pipes 103 and 104 are provided instead of the intake valve 30 (FIG. 2), the space for arranging the intake valve 30 becomes unnecessary. Further, the ventilation pipe 74 and the individual ventilation pipes 103 and 104 are assembled in the header 80 and opened to the atmosphere through the combined flow air pipe 90. Therefore, it is not necessary to extend the ventilation pipe 74 and the individual ventilation pipes 103 and 104 to the outside, respectively. As a result, intake and exhaust can be performed collectively, and the number of parts can be reduced as compared with the case where the ventilation pipes 74 and the individual ventilation pipes 103 and 104 are individually opened to the atmosphere.

Since the other parts are the same as those in the first embodiment, the same parts are designated by the same reference numerals and the description thereof will be omitted.

[Reference Example 1]
In FIG. 10, in the drainage structure 56 according to this reference example, the first siphon drainage pipe 31 is connected to the downstream side of the drainage pipe 51 extending from the first drainage trap 21. Further, the second siphon drainage pipe 32 is connected to the downstream side of the drainage pipe 52 extending from the second drainage trap 22. That is, the drainage route from the first drain trap 21 and the drainage route from the second drain trap 22 are independent of each other.

Therefore, even if the accumulated drainage from the first drain trap 21 is performed, the drainage does not flow into the second drain trap 22 side. Therefore, it is possible to prevent the accumulated drainage from the bathtub 11 from overflowing to the washing place 12 (FIG. 1).

Since the other parts are the same as those in the first embodiment, the same parts are designated by the same reference numerals and the description thereof will be omitted.

[Reference Example 2]
In FIG. 11, the drainage structure 66 according to this reference example is further provided with intake valves 111 and 112 in the reference example 1. A branch pipe 121 extending upward is connected to the drain pipe 51. The intake valve 111 is provided at the upper end of the branch pipe 121. Further, a branch pipe 122 extending upward is connected to the drain pipe 52. Further, the intake valve 112 is provided at the upper end of the branch pipe 122. The configuration of the intake valves 111 and 112 is the same as that of the intake valve 30 of the first embodiment.

In this reference example, as in Reference Example 1, even if the accumulated drainage from the first drain trap 21 is performed, the drainage does not flow into the second drain trap 22 side. Therefore, it is possible to prevent the accumulated drainage from the bathtub 11 from overflowing to the washing place 12 (FIG. 1).

Since the intake valve 111 is added to the drain pipe 51, outside air is taken in from the intake valve 111 when draining from the first drain trap 21. Further, since the intake valve 112 is added to the drain pipe 52, outside air is taken in from the intake valve 112 when draining from the second drain trap 22. Therefore, both the drainage from the first drain trap 21 and the drainage from the second drain trap 22 are easy to flow.

Since the other parts are the same as those in the first embodiment or Reference Example 1, the same parts are designated by the same reference numerals to the drawings, and the description thereof will be omitted.

[Fifth Embodiment]
In FIG. 12, the drainage structure 76 according to the present embodiment has a second bypass pipe 218. The second bypass pipe 218 connects the first drain trap 21 side and the second drain trap 22 side of the first bypass pipe 18 at a position lower than the uppermost portion of the first bypass pipe 18. The bottom surface of the pipeline in the second bypass pipe 218 is arranged lower than the upper surface 22H of the second drain trap 22. Further, the bottom surface of the pipeline in the second bypass pipe 218 is arranged higher than the bottom surface 52D of the upper horizontal pipe portion 52A of the drainage pipe 52.

The second bypass pipe 218 extends laterally, for example. The second bypass pipe 218 may be inclined or curved with respect to the horizontal direction. As described above, when the height of the bottom surface of the pipeline in the second bypass pipe 218 is not constant, the highest position of the bottom surface is lower than the upper surface 22H of the second drain trap 22, and the upper horizontal pipe portion 52A. It is arranged higher than the bottom surface 52D.

For example, the connection portion 18D of the first bypass pipe 18 is provided with a first check valve 19. The first check valve 19 is configured to allow the flow from the second drain trap 22 side to the first drain trap 21 side and not to allow the flow on the opposite side. The position of the first check valve 19 is not limited to the connection portion 18D, and may be provided in, for example, the vertical pipe portion 18B. Further, the first check valve 19 may be configured to allow some flow from the first drain trap 21 side to the second drain trap 22 side.

The second bypass pipe 218 is provided with a second check valve 219. The second check valve 219 is configured to allow the flow from the second drain trap 22 side to the first drain trap 21 side and not to allow the flow on the opposite side. The second check valve 219 may be configured to allow some flow from the first drain trap 21 side to the second drain trap 22 side.

Even when the drainage from the washing place 12 does not fit in the second drain trap 22 and becomes full, according to the present embodiment, the excess drainage passes through the second bypass pipe 218 and the vertical pipe portion 51B of the drain pipe 51. , Flows to the first siphon drainage pipe 31 (FIG. 1) through the lower horizontal pipe portion 51C (in the direction of arrow H). In the present embodiment, the bottom surface of the pipeline in the second bypass pipe 218 is arranged higher than the bottom surface 52D of the upper horizontal pipe portion 52A of the drainage pipe 52. Therefore, the drainage from the washing place 12 does not always flow to the second bypass pipe 218, and the second siphon drainage pipe 32 quickly fills up, so that the siphon start-up is not delayed.

Further, in the present embodiment, the bottom surface of the pipeline in the second bypass pipe 218 is arranged lower than the upper surface 22H of the second drain trap 22. Therefore, when the drainage is likely to overflow from the second drain trap 22, the drainage flows to the second bypass pipe 218, so that it is possible to prevent the drainage from overflowing from the second drain trap 22.

Further, since the second check valve 219 is provided in the second bypass pipe 218, the flow from the first drain trap 21 side to the second drain trap 22 side through the second bypass pipe 218 is suppressed. Further, since the first check valve 19 is provided at the connection portion 18D of the first bypass pipe 18, the second drain trap 21 from the first drain trap 21 side through the first bypass pipe 18 when draining from the bathtub 11. The flow to the 22 side, that is, the overflow from the vertical pipe portion 18A to the vertical pipe portion 18B is less likely to occur.

Since the other parts are the same as those in the first embodiment, the same parts are designated by the same reference numerals and the description thereof will be omitted.

[Sixth Embodiment]
In FIG. 13, the drainage structure 86 according to the present embodiment has a configuration in which the first check valve 19 of the first bypass pipe 18 in the fifth embodiment is omitted. In the first bypass pipe 18, as described in the first embodiment, by appropriately setting the height of the uppermost portion 18H, overflow occurs between the vertical pipe portions 18A and 18B in the first bypass pipe 18. You can avoid it. Therefore, by omitting the first check valve 19 as in the present embodiment, the configuration can be simplified and the cost can be reduced.

[Other embodiments]
Although an example of the embodiment of the present invention has been described above, the embodiment of the present invention is not limited to the above, and can be variously modified and implemented without departing from the gist thereof. Of course there is.

Although the bathtub 11 is mentioned as an example of the first water-related device, the first water-related device may be a device such as a washing machine in which drainage is collected and drained. Further, although the washing place 12 is mentioned as an example of the second water-related equipment, the second water-related equipment may be a washbasin, a kitchen, a dishwasher, or the like, in which the drainage is continuous drainage.

As an example of the downstream portion of the first drain trap 21 to which the first bypass pipe 18 is connected, the drain pipe 51 is mentioned, but the downstream portion is not limited to this. Similarly, the drain pipe 52 is mentioned as an example of the downstream portion of the second drain trap 22 to which the first bypass pipe 18 is connected, but the downstream portion is not limited to this. For example, the first bypass pipe 18 may be directly connected to at least one of the first drain trap 21 and the second trap 22.

Although the intake valve 30 is provided in the first bypass pipe 18, the intake valve 30 may be omitted as long as the sealing of the first drain trap 21 and the second drain trap 22 is not broken.

The disclosure of Japanese Patent Application No. 2017-33512, filed February 24, 2017, is incorporated herein by reference in its entirety.
All documents, patent applications, and technical standards described herein are to the same extent as if the individual documents, patent applications, and technical standards were specifically and individually stated to be incorporated by reference. Incorporated by reference herein.

Claims (10)

The drainage is the first water supply device, which is the drainage drainage that is drained after the water is stored.
The second water supply device, which drains water continuously without storing water,
The first drain trap provided in the drain portion of the first water supply device and
A second drain trap provided in the drain of the second water supply device and
The downstream part of the first drain trap and the downstream part of the second drain trap are connected, and at least a part of the pipeline is located above both the first drain trap and the second drain trap. The first bypass pipe and
The first siphon drainage pipe connected to the downstream side of the first drainage trap and the first bypass pipe,
A second siphon drainage pipe connected to the downstream side of the second drainage trap and the first bypass pipe,
Drainage structure with. The drainage structure according to claim 1, wherein an auxiliary chamber is provided in at least one of a downstream portion of the first drain trap and a downstream portion of the second drain trap. The drainage structure according to claim 1 or 2, wherein an intake valve is provided in the first bypass pipe. The drainage structure according to claim 1 or 2, wherein a ventilation pipe is connected to the first bypass pipe. With other drain traps provided for other water accessories,
A siphon drainage pipe connected to the downstream side of the other drainage trap,
Individual ventilation pipes connected to the downstream part of the other drain traps,
With the header to which the ventilation pipe and the individual ventilation pipe are connected,
A combined flow trachea connected to the header and open to the atmosphere,
The drainage structure according to claim 4. The first drain trap side and the second drain trap side of the first bypass pipe are connected at a position lower than the uppermost portion of the first bypass pipe, and the bottom surface of the pipeline is higher than the upper surface of the second drain trap. The drainage structure according to any one of claims 1 to 5, which has a second bypass pipe arranged low. It has a drainage pipe that connects the second drainage trap and the second siphon drainage pipe.
The drainage structure according to claim 6, wherein the bottom surface of the pipeline in the second bypass pipe is arranged higher than the bottom surface of the drainage pipe. The first bypass pipe is provided with a first check valve that allows flow from the second drain trap side to the first drain trap side and does not allow flow on the opposite side. The drainage structure according to claim 7. The second bypass pipe is provided with a second check valve that allows the flow from the second drain trap side to the first drain trap side and does not allow the flow on the opposite side. The drainage structure according to any one of claims 8. Drainage vertical pipes arranged in the vertical direction of the building,
It has the drainage structure according to any one of claims 1 to 9.
The first siphon drainage pipe and the second siphon drainage pipe have a horizontal pulling pipe for flowing drainage in the lateral direction and a vertical pipe connected to the drainage vertical pipe for flowing drainage from the horizontal pulling pipe downward. Siphon drainage system.

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