JP2014009505A - Drain trap - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent drainage from flowing back while constituting a first drain passage and a second drain passage independently so as to cause no mutual interference between drains of the first and second drain passages.SOLUTION: A drain trap is comprises of: a body part 1 opened at its upper part and provided with water seal in its inside; a cover part 2 opening the aperture 21 through which drain passes and closing an opening of the body part 1; a discharge port 11 for discharging inside drain configured on the side face of the body part 1; a bowl-like bowl part 12 provided with a wall in a cylindrical shape in the body part 1 and storing a part of drain in its inside; a cylindrical deodorization pipe 3 with its lower end arranged in the bowl-like bowl part 12 and forming water seal in cooperation with the bowl-like bowl part 12; and a drain branch pipe 13 flowing drain from other than the aperture 21 configured on the side face of the body part 1 into the body part 1. A backflow prevention wall 22 extending downward from the cover part 2 is configured in the drain trap.

Description

The present invention relates to a drain trap that is attached to a wash bowl, a bathroom, or a drain of a kitchen, and is configured so as to have a sealed water inside so as to prevent backflow of off-flavors and pests to the indoor side.

As a well-known drain trap, there are drain traps shown in FIGS. 16 and 17, for example.
The drain trap of this conventional example is attached to the drain outlet of the bathroom as shown in FIG. In addition, the drainage equipment used for the said bathroom is demonstrated. (Patent Document 1)
The bathroom is constituted by a waterproof pan including a washing pan where a user washes the body and a bathtub pan on which the bathtub is placed, and each waterproof pan has a drain outlet for drainage.
An elbow member is arranged and configured in the bathtub pan, and the elbow member is connected to a drainage branch pipe of a drainage trap through a tubular body or the like. The elbow member is a pipe member having an L-shaped cross-sectional view, and discharges drainage in the bathtub and drainage generated on the bathtub pan to the drain trap side.
Further, a drain trap used in this conventional example is arranged and configured at the drain outlet of the wash basin, and drainage generated on the wash basin pan is drained into the drain trap through the drain outlet. Further, since the elbow member is connected to the drain branch pipe of the drain trap, the drain in the elbow member is also drained into the drain trap. The drainage in the drain trap is finally drained from the outlet to the sewer pipe.
The drain trap provided in the bathroom drainage facility of this conventional example is composed of a main body portion, a flange portion, a lid portion, a discharge port, an Owan portion, a deodorizing pipe, and a drainage branch pipe.
A main-body part is a box body which upper direction opens, Comprising: The Owan part mentioned later is provided in an inside.
The lid is a member that includes an opening through which drainage passes and covers the upper opening of the main body in a watertight manner. The lid portion is connected to the main body portion by spin welding. The lid opening is engraved with a female screw for screwing a flange portion described later.
The flange portion is a ring-shaped member that forms a flange protruding outward in the upper end, and is a member that engraves a male screw that is screwed into the opening of the lid portion on the outer periphery. In addition, the deodorizing pipe mentioned later is attached to the inner peripheral surface of a flange part so that attachment or detachment is possible.
The discharge port is a tubular body configured to extend integrally on the side surface of the main body, and is configured to discharge the waste water inside the main body to the outside of the main body. A drain pipe is connected to the discharge port, and drainage inside the main body is finally drained into the drain pipe.
The Owan portion is a cylindrical wall configured to rise upward from the bottom surface of the main body portion, and drainage is stored inside. In addition, in this Owan part, seal water is formed in cooperation with the deodorizing pipe mentioned later.
The deodorizing pipe is a cylindrical member that is detachably attached to the flange portion, and a connection mechanism with the flange portion is formed at the upper end. Further, when the deodorizing pipe is attached to the flange portion, the lower end of the deodorizing pipe is disposed in the Owan portion and is disposed with a gap from the bottom surface of the Owan portion. By doing in this way, a sealing water can be provided in an Owan part.
The drainage branch pipe is a branch pipe that is integrally extended to the outer surface of the main body, and is for allowing drainage from other drainage channels to flow into the main body. In this conventional example, the drainage branch pipe is connected to the above-described elbow member via a pipe body.

The drainage trap of the above conventional example is attached as follows.
At a factory or the like, a drain trap is previously attached to the drain of the washing pan by a flange portion, and an elbow member is also attached to the drain of the bathtub pan. The drainage branch pipe of the drainage trap and the elbow member are connected by a pipe body.
Then, a bathtub pan and a washing pan are installed in the bathroom, and the bathtub is placed on the bathtub pan. At this time, it mounts so that the drain outlet of a bathtub may be located above the drain outlet of an elbow member. Thereafter, the elbow member is appropriately provided with an eye plate and piping, and an apron is attached to the boundary between the bathtub and the washing pan to complete the construction.

The conventional drainage trap having the above configuration has the following drainage flow.
When drainage occurs on the washing basin pan, it is drained into a drainage trap attached to the back of the washing basin pan through the drainage port and flange of the washing basin pan. The drainage in the drainage trap passes through the deodorizing pipe and is drained into the Owan section. In addition, drainage flows from the gap between the lower end of the deodorizing pipe and the bottom of the Owan portion and overflows from the Owan portion, but the drainage overflowing from the Owan portion is finally drained from the discharge port to the sewage.
Moreover, although the waste_water | drain in a bathtub is drained from the opening of a bathtub, it drains through the pipe body and a drain outlet into the elbow member attached from the back surface of the drain outlet of a bathtub pan.
Moreover, the waste water generated on the bathtub pan is drained into the elbow member through the drain port.
Moreover, the waste water drained into the elbow member is drained into the drain branch pipe of the drain trap through the pipe body. Drained from the drain branch into the drain trap. The drainage drained into the drain trap passes through the main body and drains from the discharge port. The drainage discharged from the discharge port is drained to the sewer pipe.

JP 2000-027255 A JP 2003-313914 A

The conventional drainage trap described above has the following problems.
With conventional drain traps, when a large amount of drainage occurs on the washing pan, drainage performance of the drain trap may not catch up, and drainage may flow backward from the drain branch to the elbow member side. There was a case where the drainage flowed backwards or the drainage flowed back into the bathtub. In addition, when draining the bathtub, the drainage of the bathtub drains a large amount at once, so the drainage performance of the drain trap cannot catch up, and it may flow back to the washing pan or backflow onto the bathtub pan. there were.

Further, for example, as in the conventional example shown in FIG. 17 (Patent Document 2), since there are a plurality of notches in the owan part, when there is a backflow in the drainage, there are a plurality of notches so that the backflow water Will merge into other drainage channels, causing backflow.
In addition, although the notch is configured, but the notch is not configured at the position facing the discharge port, the drainage from the drainage branch and the drainage from the wash basin merge, and each other drains. The backflow of drainage occurred due to interference.

The drain trap according to the present invention is a box that opens upward, and has a main body 1 with sealed water inside, an opening 21 through which drainage passes, and a lid that covers the opening of the main body 1. Part 2, a discharge port 11 for discharging the internal waste water constituted on the side surface of the main body part 1, an owan part 12 having a cylindrical wall in the main body part 1 and storing a part of the waste water inside, a cylinder The lower end of the Owan portion 12 is disposed in the Owan portion 12 to cooperate with the Owan portion 12 to form a sealed water, and drainage from other than the opening portion 21 formed on the side surface of the main body portion 1 It is a drainage trap composed of a drainage branch pipe 13 that flows into the portion 1, and is a drainage trap comprising a backflow prevention wall 22 that hangs downward from the lid portion 2. .

In the drain trap of the present invention, the notch 221 constituting the drainage outflow portion is formed on the backflow prevention wall 22, and the notch 221 is attached to the main body 1 when the notch 221 is attached to the discharge port 11. It is arrange | positioned so that it may face in the direction of this, It is a drainage trap of the said paragraph 0008.

The drain trap according to the present invention is characterized in that the Owan portion 12 is configured to start up to a height that can ensure a necessary sealing depth when the deodorizing pipe 3 is disposed at an appropriate location. The drain trap according to paragraph 0009.

In the drain trap of the present invention, in the main body 1, the drainage that has flowed from the opening 21 is drained from the discharge port 11, and the drainage that has flowed from the drainage branch pipe 13 is drainage 11. The second drainage flow path 8 is configured to be disposed on the outer periphery of the Owan portion 12, and the bottom surface of the second drainage flow path 8 is raised to form a sealed water depth securing wall 14. Thus, the drainage trap according to any one of paragraphs 0008 to 0010, wherein sealed water is formed in the second drainage flow path 8.

The drain trap of the present invention is the drain trap according to any one of paragraphs 0008 to 0011, wherein the lower end of the backflow prevention wall 22 and the upper end of the Owan portion 12 are substantially in contact with each other. is there.

In the drain trap of the present invention, a step 222 is formed on the backflow prevention wall 22 and a stepped portion 121 is formed on the upper end of the Owan portion 12, and the stepped portion 222 and the stepped portion 121 are locked to substantially contact each other. The drainage trap according to any one of paragraphs 0008 to 0011, wherein

The drain trap of the present invention is the drain trap according to any one of paragraphs 0008 to 0011, wherein the back flow prevention wall 22 lower end side surface and the upper end side surface of the owan portion 12 are substantially in contact with each other.

Since the present invention described in claim 1 comprises the backflow prevention wall 22 that hangs downward from the periphery of the opening 21 of the lid portion 2, each of the first drainage flow path 7 and the second drainage flow path 8. Therefore, the drainage channels independently form drainage channels, so there is no interference with drainage and no backflow occurs.
According to the second aspect of the present invention, the notch portion 221 constituting the drainage portion of the drainage is formed on the backflow prevention wall 22, and the notch portion 221 is discharged when the lid portion 2 is attached to the main body portion 1. By arranging so as to face the direction of the outlet 11, the drainage of the first drainage channel 7 is not further mixed into the second drainage channel 8, and the drainage of the first drainage channel 7 is smoothly drained. Since it comes to be discharged | emitted by the exit 11, the waste_water | drain flow volume improved.
According to the third aspect of the present invention, the first drainage flow path 7 is formed by raising the Owan portion 12 to a height that can secure a necessary sealing depth when the deodorizing pipe 3 is disposed at an appropriate location. It became possible to form a sealed water.
According to the present invention, the drainage that has flowed from the opening 21 is drained from the discharge port 11 and the drainage that has flowed from the drainage branch pipe 13 is drained. The second drainage flow path 8 that is discharged from the outlet 11 and the second drainage flow path 8 are arranged on the outer periphery of the Owan portion 12 so that the bottom surface of the second drainage flow path 8 is raised. Since the sealed water is formed in the two drainage channels 8, the drainage channels can be formed independently of each other.
According to the fifth aspect of the present invention, since the lower end of the backflow prevention wall 22 and the upper end of the Owan portion 12 are substantially in contact with each other, a drainage channel can be formed independently of each other. Backflow no longer occurs.
In the present invention described in claim 6, the step portion 222 is formed on the backflow prevention wall 22, and the stepped portion 121 is formed on the upper end of the Owan portion 12, and the stepped portion 222 and the stepped portion 121 are locked to each other. By contacting, the gap can be further reduced, and the drainage of the first drainage channel 7 and the second drainage channel 8 is not mixed, so that the drainage does not flow backward. In addition, when the backflow prevention wall 22 and the owan portion 12 are not connected by bonding, the gap can be further reduced.
According to the seventh aspect of the present invention, since the lower end side surface of the backflow prevention wall 22 and the upper end side surface of the Owan portion 12 are substantially in contact with each other, the gap can be further reduced. Since the drainage of the flow path 8 is not mixed, the backflow of the drainage does not occur. In addition, when the backflow prevention wall 22 and the owan portion 12 are not connected by bonding, the gap can be further reduced.

It is sectional drawing which shows the attachment condition at the time of constructing the drain trap of this invention in a bathroom. It is a perspective view which shows the drain trap of the present invention. It is a cross-sectional perspective view which shows Example 1 of this invention. It is an exploded view of a cross-sectional perspective view showing Example 1 of the present invention. It is a top view at the time of making the drain trap of the present invention into a top view section, and is a figure showing the 1st drainage channel and the 2nd drainage channel. It is a section perspective view showing the flow of drainage of the 1st drainage channel of the present invention. It is a section perspective view showing the flow of drainage of the 1st drainage channel of the present invention. It is a section perspective view showing the flow of drainage of the 2nd drainage channel of the present invention. It is a section perspective view showing the flow of drainage of the 2nd drainage channel of the present invention. It is a section perspective view showing the flow of drainage of the 2nd drainage channel of the present invention. It is a perspective view which shows the cover part of this invention. It is a cross-sectional perspective view which shows Example 2 of this invention. It is an exploded view of the cross-sectional perspective view which shows Example 2 of this invention. It is a cross-sectional perspective view which shows Example 3 of this invention. It is an exploded view of a sectional perspective view showing Example 3 of the present invention. It is sectional drawing which shows a prior art example. It is sectional drawing which shows a prior art example.

The drain trap of the present embodiment is attached to the drain outlet of the bathroom as shown in FIG. In addition, the drainage equipment used for the said bathroom is demonstrated.
The bathroom is constituted by a waterproof pan 5 including a washing pan 51 where a user washes the body and a bathtub pan 52 on which the bathtub 9 is placed, and each waterproof pan 5 has a drain outlet 53 for drainage. ing.
An elbow member 6 is arranged and configured in the bathtub pan 52, and the elbow member 6 is connected to the drainage branch pipe 13 of the drain trap through a pipe or the like. The elbow member 6 is a pipe member having an L shape in cross section, and discharges the waste water in the bathtub 9 and the waste water generated on the bathtub pan 52 to the drain trap side.
In addition, a drain trap used in this embodiment is arranged and configured at the drain outlet 53 of the wash basin pan 51, and drainage generated on the wash basin pan 51 is drained into the drain trap through the drain outlet 53. Further, since the elbow member 6 is connected to the drainage branch pipe 13 of the drain trap, the drainage in the elbow member 6 is also drained into the drain trap. The drainage in the drain trap is finally drained from the discharge port 11 to the sewer pipe.
As shown in FIGS. 1 to 11, the drain trap provided in the bathroom drainage facility of the present embodiment includes a first drainage channel 7, a second drainage channel 8, a main body 1, and a flange 4. The lid portion 2, the backflow prevention wall 22, the discharge port 11, the Owan portion 12, the deodorizing pipe 3, the drainage branch pipe 13, and the branching convex portion 15 are configured.
The first drainage flow path 7 indicates the following flow path as indicated by the arrow 7 in FIGS. Drainage generated on the washing area pan 51 described later flows into the main body 1 of the drainage trap through the drain opening 53 and the flange portion 4 of the washing area pan 51, and passes through the inside of the deodorization pipe 3 and the lower end of the deodorization pipe 3. It flows into the Owan portion 12. The waste water that has flowed into the Owan portion 12 overflows from the Owan portion 12 and flows out of the Owan portion 12 through a notch portion 221 where the lower end of the backflow prevention wall 22 and the upper end of the Owan portion 12 are not in contact. Eventually, the water will be discharged from the discharge port 11 to the outside of the main body. The flow path through which the wastewater generated on the washing place pan 51 flows is the first drainage flow path 7.
As shown in FIGS. 5 and 8 to 10, the second drainage flow path 8 is configured so that the drainage generated from the bathtub 9 and the bathtub pan 52 passes through the drainage port 53 of the bathtub pan 52, It flows into the inside of the main body through the drainage branch pipe 13, passes through the outer portion of the Owan portion 12, and is finally drained from the discharge port 11. The flow path through which the drainage on the bathtub pan 52 and the drainage from the bathtub 9 flows is the second drainage flow path 8. Moreover, although the 2nd drainage flow path 8 is comprised in the Owan part 12 outer periphery, it is provided with sealing water uniquely. In the present embodiment, the sealed water is formed so that the bottom of the second drainage flow path 8 is raised to the height of the sealed water depth and functions as the sealed water depth securing wall 14. The sealed water depth of the second drainage flow path 8 forms the sealed water depth from the upper end of the drainage branch pipe 13 to the upper end of the sealed depth securing wall 14.
The main body 1 is a box that opens upward, and includes an Owan portion 12 to be described later. Moreover, although the main-body part 1 is a top view circular shape, as shown in FIG. 5, it is connected by the tangent which inclines toward the discharge port 11 from the main-body part 1. As shown in FIG.
As shown in FIG. 11, the lid 2 is a member that includes an opening 21 through which drainage flows and covers the upper opening of the main body 1 in a watertight manner. The lid 2 is connected to the main body 1 by an adhesive. Note that a female screw for screwing with a flange portion 4 to be described later is engraved on the inner peripheral surface of the lid portion 2 opening inner peripheral surface.
As shown in FIG. 11, the backflow prevention wall 22 is provided as a backflow prevention wall surface configured to hang downward from the periphery of the opening 21 on the lower surface of the lid portion 2. The backflow prevention wall 22 forms a notch 221 at a position facing the discharge port 11.
The flange portion 4 is a ring-shaped member that forms a flange protruding outward in the upper end, and is a member that engraves a male screw on the outer periphery that is screwed into the opening 21 of the lid portion 2. In addition, the deodorizing pipe 3 mentioned later is attached to the inner peripheral surface of the flange part 4 so that attachment or detachment is possible.
The discharge port 11 is a tubular body configured to extend integrally on the side surface of the main body 1 and is configured to discharge the waste water inside the main body to the outside of the main body. A drain pipe is connected to the discharge port 11, and the drainage in the main body 1 is finally drained into the drain pipe.
The Owan portion 12 is a cylindrical wall configured to rise upward from the bottom surface of the main body portion 1, and drainage is stored inside. In addition, this Owan part 12 forms sealed water in cooperation with the deodorizing pipe 3 mentioned later. In this embodiment, the Owan portion 12 has at least the height of the sealed water specified by the JIS standard, etc., and the sealed water depth at this time is from the upper end of the Owan portion 12 to the lower end of the deodorizing pipe 3. Say height. Further, as shown in FIGS. 3 and 4, the Owan portion 12 is configured so that the upper end thereof is substantially in contact with the lower end of the backflow prevention wall 22 of the lid portion 2. By configuring in this way, even if a large amount of drainage from the second drainage flow path 8 described later is drained at once, the backflow prevention wall 22 is in contact from the lid portion 2 to the upper end of the owan portion 12, The drainage of the second drainage channel 8 hardly flows into the first drainage channel 7. Therefore, the drainage does not flow back on the washing place pan 51.
In addition, when a large amount of drainage is drained all at once on the washing place pan 51, the backflow prevention wall 22 is suspended from the lid part 2 and the lower end of the backflow prevention wall 22 and the upper end of the owan part 12 are substantially in contact with each other. The drainage of one drainage channel 7 flows into the second drainage channel 8 side.
The deodorizing pipe 3 is a cylindrical member that is detachably attached to the flange portion 4, and a connection mechanism with the flange portion 4 is configured at the upper end. Further, when the deodorizing pipe 3 is attached to the flange portion 4, the lower end of the deodorizing pipe 3 is disposed in the Owan portion 12 and is disposed with a gap from the bottom surface of the Owan portion 12. By doing in this way, sealed water can be provided in the Owan part 12.
The drainage branch pipe 13 is a branch pipe that is integrally extended to the outer surface of the main body 1 and is used to allow drainage from other drainage channels to flow into the main body 1. Or it is comprised as flat cross-sectional shape. In this embodiment, the drainage branch pipe 13 is connected to the above-described elbow member 6 via a pipe body.
The diverting convex portion 15 is a guide rib for diverting the drainage flowing in from the drainage branch pipe 13 along the Owan portion 12 without generating turbulent flow or the like, and has a mountain shape so as to face the inlet of the drainage branch pipe 13. It is configured above. The branching convex portion 15 is configured to be a triangular rib when viewed from the drainage branch pipe 13 side. The drainage that has flowed into the main body from the drainage branch pipe 13 abuts on the branching convex portion 15 and is split in the left-right direction, so that no turbulent flow is generated in the drainage.

The drain trap of the above embodiment is attached as follows.
The main body and the lid 2 are previously connected by an adhesive at a factory or the like. At this time, as shown in FIGS. 3 and 4, the lower end of the backflow prevention wall 22 and the upper end portion of the Owan portion 12 are substantially in contact with each other. is there. By making the backflow prevention wall 22 and the Owan portion 12 abut instead of bonding, the productivity of bonding is improved and there is no problem of dripping of the adhesive.
In addition, a drain trap is attached to the drain port 53 of the washing basin pan 51 in advance at the factory by the flange portion 4, and the elbow member 6 is also attached to the drain port 53 of the bathtub pan 52. Further, the drainage branch pipe 13 of the drain trap and the elbow member 6 are connected in advance by a pipe body.
Thereafter, the bathtub pan 52 and the washing pan 51 are installed in the bathroom, and the bathtub 9 is placed on the bathtub pan 52. At this time, the bathtub 9 is placed so that the drain outlet of the bathtub 9 is positioned above the drain outlet 53 of the elbow member 6. Thereafter, the elbow member 6 is appropriately provided with an eye plate and piping, and an apron is attached to the boundary between the bathtub 9 and the washing pan 51 to complete the construction.

The drainage trap having the above-described configuration has the following drainage flow.
When drainage occurs on the washing basin pan 51, as shown by the arrows in FIGS. 6 and 7 as the first drainage channel 7, the back surface of the lavatory pan 51 is passed through the drainage port 53 and the flange portion 4 of the washing basin 51. Drained in a drain trap attached to the. Waste water in the drain trap passes through the deodorizing pipe 3 and is drained into the Owan portion 12. Further, drainage flows from the gap between the lower end of the deodorizing pipe 3 and the bottom of the Owan portion 12 and overflows from the Owan portion 12, but the drainage overflowing from the Owan portion 12 is finally drained from the discharge port 11 to the sewage. The Rukoto.
Moreover, the drainage in the bathtub 9 is drained from the opening of the bathtub 9, but is attached as the second drainage flow path 8 from the back surface of the drainage port 53 of the bathtub pan 52 as shown by the arrows in FIGS. 8 to 10. The water is drained into the elbow member 6 through the pipe body and the drain port 53.
The drainage generated on the bathtub pan 52 is drained into the elbow member 6 through the drainage port 53 as shown by the arrows in FIGS. 8 to 10 as the second drainage flow path 8.
Moreover, the waste water drained into the elbow member 6 is drained into the drain branch 13 of the drain trap as a second drain channel 8 through the tubular body. The drainage that has flowed into the main body from the drainage branch pipe 13 abuts on the branching convex portion 15 and is split in the left-right direction, so that no turbulent flow is generated in the drainage. And it drains from the discharge port 11 through the Owan part 12 outer periphery in the main-body part 1 and the sealing depth ensuring wall 14.
The flow path through which the drainage on the bathtub pan 52 and the drainage from the bathtub 9 flows is the second drainage flow path 8.
The drainage discharged from the discharge port 11 is drained to the sewer pipe.
Further, even when a large amount of drainage is suddenly generated in the first drainage channel 7, the drainage of the first drainage channel 7 is prevented from entering the second drainage channel 8 inside the drain trap by the backflow prevention wall 22. Therefore, the drainage does not substantially flow back to the bathtub pan 52 or the bathtub 9 side and is smoothly drained to the discharge port 11 side.
In addition, when a large amount and sudden drainage occurs on the second drainage channel 8, the drainage of the second drainage channel 8 does not flow into the first drainage channel 7 by the backflow prevention wall 22, so that the washing place The drainage does not flow backward on the pan 51 and is drained smoothly. Thus, in this embodiment, since the backflow prevention wall 22 is configured, the drainage of each of the first drainage channel 7 and the second drainage channel 8 does not flow into each channel. Effectively prevent backflow to drainage equipment.

The drain trap of the second embodiment is attached to the drain of the bathroom as shown in FIG. In addition, the drainage equipment used for the said bathroom is demonstrated.
The bathroom is constituted by a waterproof pan 5 including a washing pan 51 where a user washes the body and a bathtub pan 52 on which the bathtub 9 is placed, and each waterproof pan 5 has a drain outlet 53 for drainage. ing.
An elbow member 6 is arranged and configured in the bathtub pan 52, and the elbow member 6 is connected to the drainage branch pipe 13 of the drain trap through a pipe or the like. The elbow member 6 is a pipe member having an L shape in cross section, and discharges the waste water in the bathtub 9 and the waste water generated on the bathtub pan 52 to the drain trap side.
In addition, a drain trap used in this embodiment is arranged and configured at the drain outlet 53 of the wash basin pan 51, and drainage generated on the wash basin pan 51 is drained into the drain trap through the drain outlet 53. Further, since the elbow member 6 is connected to the drainage branch pipe 13 of the drain trap, the drainage in the elbow member 6 is also drained into the drain trap. The drainage in the drain trap is finally drained from the discharge port 11 to the sewer pipe.
As shown in FIGS. 12 and 13, the drain trap provided in the bathroom drainage facility of the present embodiment includes the first drainage channel 7, the second drainage channel 8, the main body 1, the flange portion 4, The lid portion 2, the backflow prevention wall 22, the discharge port 11, the Owan portion 12, the deodorizing pipe 3, the drainage branch pipe 13, and the branching convex portion 15 are configured.
The 1st drainage channel 7 points out the following channels. Drainage generated on the washing area pan 51 described later flows into the main body 1 of the drainage trap through the drain opening 53 and the flange portion 4 of the washing area pan 51, and passes through the inside of the deodorization pipe 3 and the lower end of the deodorization pipe 3. It flows into the Owan portion 12. The waste water that has flowed into the Owan portion 12 overflows from the Owan portion 12 and flows out of the Owan portion 12 through a notch portion 221 where the lower end of the backflow prevention wall 22 and the upper end of the Owan portion 12 are not in contact. Eventually, the water will be discharged from the discharge port 11 to the outside of the main body. The flow path through which the wastewater generated on the washing place pan 51 flows is the first drainage flow path 7.
In the second drainage flow path 8, drainage generated from the bathtub 9 and the bathtub pan 52 flows into the main body through the elbow member 6, the pipe body, and the drainage branch pipe 13 through the drainage port 53 of the bathtub pan 52. The Owan portion 12 passes through the outer peripheral portion and is finally drained from the discharge port 11. The flow path through which the drainage on the bathtub pan 52 and the drainage from the bathtub 9 flows is the second drainage flow path 8. Moreover, although the 2nd drainage flow path 8 is comprised in the Owan part 12 outer periphery, it is provided with sealing water uniquely. In the present embodiment, the sealed water is formed so that the bottom of the second drainage flow path 8 is raised to the height of the sealed water depth and functions as the sealed water depth securing wall 14. The sealed water depth of the second drainage flow path 8 forms the sealed water depth from the upper end of the drainage branch pipe 13 to the upper end of the sealed depth securing wall 14.
The main body 1 is a box that opens upward, and includes an Owan portion 12 to be described later. The main body 1 is circular when viewed from above, but is connected by a tangent line inclined from the main body 1 toward the discharge port 11.
The lid 2 is a member that includes an opening 21 through which drainage passes and covers the upper opening of the main body 1 in a watertight manner. The lid 2 is connected to the main body 1 by an adhesive. Note that a female screw for screwing with a flange portion 4 to be described later is engraved on the inner peripheral surface of the lid portion 2 opening inner peripheral surface.
The backflow prevention wall 22 is provided as a wall surface for preventing backflow configured to hang downward from the periphery of the opening 21 on the lower surface of the lid portion 2. The backflow prevention wall 22 forms a notch 221 at a position facing the discharge port 11. In this embodiment, as shown in FIGS. 12 and 13, a stepped portion 222 having a height difference is formed at the lower end of the backflow prevention wall 22. The step portion 222 is configured to abut on a stepped portion 121 of the Owan portion 12 described later.
The flange portion 4 is a ring-shaped member that forms a flange protruding outward in the upper end, and is a member that engraves a male screw on the outer periphery that is screwed into the opening 21 of the lid portion 2. In addition, the deodorizing pipe 3 mentioned later is attached to the inner peripheral surface of the flange part 4 so that attachment or detachment is possible.
The discharge port 11 is a tubular body configured to extend integrally on the side surface of the main body 1 and is configured to discharge the waste water inside the main body to the outside of the main body. A drain pipe is connected to the discharge port 11, and the drainage in the main body 1 is finally drained into the drain pipe.
The Owan portion 12 is a cylindrical wall configured to rise upward from the bottom surface of the main body portion 1, and drainage is stored inside. In addition, this Owan part 12 forms sealed water in cooperation with the deodorizing pipe 3 mentioned later. In this embodiment, the Owan portion 12 has at least the height of the sealed water specified by the JIS standard, etc., and the sealed water depth at this time is from the upper end of the Owan portion 12 to the lower end of the deodorizing pipe 3. Say height. Further, as shown in FIGS. 12 and 13, the Owan portion 12 forms a stepped portion 121 at the upper end thereof, and substantially abuts on a stepped portion 222 formed at the lower end of the backflow prevention wall 22 of the lid portion 2. It has a configuration. By configuring in this way, even if a large amount of drainage from the second drainage flow path 8 described later is drained at once, the backflow prevention wall 22 is in contact from the lid portion 2 to the upper end of the owan portion 12, The drainage of the second drainage channel 8 hardly flows into the first drainage channel 7. Therefore, the drainage does not flow back on the washing place pan 51.
In addition, when a large amount of drainage is drained all at once on the washing place pan 51, the backflow prevention wall 22 is suspended from the lid part 2 and the lower end of the backflow prevention wall 22 and the upper end of the owan part 12 are substantially in contact with each other. The drainage of one drainage channel 7 flows into the second drainage channel 8 side.
The deodorizing pipe 3 is a cylindrical member that is detachably attached to the flange portion 4, and a connection mechanism with the flange portion 4 is configured at the upper end. Further, when the deodorizing pipe 3 is attached to the flange portion 4, the lower end of the deodorizing pipe 3 is disposed in the Owan portion 12 and is disposed with a gap from the bottom surface of the Owan portion 12. By doing in this way, sealed water can be provided in the Owan part 12.
The drainage branch pipe 13 is a branch pipe that is integrally extended to the outer surface of the main body 1 and is used to allow drainage from other drainage channels to flow into the main body 1. Or it is comprised as flat cross-sectional shape. In this embodiment, the drainage branch pipe 13 is connected to the above-described elbow member 6 via a pipe body.
The diverting convex portion 15 is a guide rib for diverting the drainage flowing in from the drainage branch pipe 13 along the Owan portion 12 without generating turbulent flow or the like, and has a mountain shape so as to face the inlet of the drainage branch pipe 13. It is configured above. The branching convex portion 15 is configured to be a triangular rib when viewed from the drainage branch pipe 13 side. The drainage that has flowed into the main body from the drainage branch pipe 13 abuts on the branching convex portion 15 and is split in the left-right direction, so that no turbulent flow is generated in the drainage.

The drain trap of the above embodiment is attached as follows.
The lid 2 and the main body 1 are connected in advance at the factory. Regarding the contact between the backflow prevention wall 22 and the owan 12, the contact between the step 222 and the stepped portion 121 is as shown in FIGS. 12 and 13. Then, the step portion 222 and the stepped portion 121 are brought into contact with each other so as to coincide with each other, and the lid portion 2 is connected to the main body portion 1 with an adhesive. At this time, the step portion 222 of the backflow prevention wall 22 and the stepped portion 121 of the owan portion 12 are substantially in contact with each other, and this portion is not particularly bonded or the like, and is merely in contact. By making the backflow prevention wall 22 and the Owan portion 12 abut instead of bonding, the productivity of bonding is improved and there is no problem of dripping of the adhesive.
Further, a drain trap is attached to the drain port 53 of the washing pan 51 in advance at the factory or the like by the flange portion 4, and the elbow member 6 is also attached to the drain port 53 of the bathtub pan 52. The drainage branch pipe 13 of the drain trap and the elbow member 6 are connected by a pipe body.
Thereafter, the bathtub pan 52 and the washing pan 51 are installed in the bathroom, and the bathtub 9 is placed on the bathtub pan 52. At this time, the bathtub 9 is placed so that the drain outlet of the bathtub 9 is positioned above the drain outlet 53 of the elbow member 6. Thereafter, the elbow member 6 is appropriately provided with an eye plate and piping, and an apron is attached to the boundary between the bathtub 9 and the washing pan 51 to complete the construction.

The drainage trap having the above-described configuration has the following drainage flow.
When drainage occurs on the washing basin pan 51, the first drainage flow path 7 is drained into a drainage trap attached to the back of the washing basin pan 51 via the drainage port 53 and the flange portion 4 of the washinghouse pan 51. . Waste water in the drain trap passes through the deodorizing pipe 3 and is drained into the Owan portion 12. Further, drainage flows from the gap between the lower end of the deodorizing pipe 3 and the bottom of the Owan portion 12 and overflows from the Owan portion 12, but the drainage overflowing from the Owan portion 12 is finally drained from the discharge port 11 to the sewage. The Rukoto.
Moreover, although the waste_water | drain in the bathtub 9 is drained from the opening of the bathtub 9, as a 2nd drainage flow path 8, it is a pipe body and a drain outlet into the elbow member 6 attached from the back surface of the drain outlet 53 of the bathtub pan 52. 53, and then drained.
The drainage generated on the bathtub pan 52 is drained into the elbow member 6 through the drainage port 53 as the second drainage flow path 8.
Moreover, the waste water drained into the elbow member 6 is drained into the drain branch 13 of the drain trap as a second drain channel 8 through the tubular body. The drainage that has flowed into the main body from the drainage branch pipe 13 abuts on the branching convex portion 15 and is split in the left-right direction, so that no turbulent flow is generated in the drainage. The drainage drained into the drain trap passes through the outer periphery of the Owan portion 12 in the main body 1 and the seal depth securing wall 14 and is drained from the discharge port 11.
The flow path through which the drainage on the bathtub pan 52 and the drainage from the bathtub 9 flows is the second drainage flow path 8.
The drainage discharged from the discharge port 11 is drained to the sewer pipe.
Further, even when a large amount of drainage is suddenly generated in the first drainage channel 7, the drainage of the first drainage channel 7 is prevented from entering the second drainage channel 8 inside the drain trap by the backflow prevention wall 22. Therefore, the drainage does not substantially flow back to the bathtub pan 52 or the bathtub 9 side and is smoothly drained to the discharge port 11 side.
In addition, when a large amount and sudden drainage occurs on the second drainage channel 8, the drainage of the second drainage channel 8 does not flow into the first drainage channel 7 by the backflow prevention wall 22, so that the washing place The drainage does not flow backward on the pan 51 and is drained smoothly. Thus, in this embodiment, since the backflow prevention wall 22 is configured, the drainage of each of the first drainage channel 7 and the second drainage channel 8 does not flow into each channel. Effectively prevent backflow to drainage equipment.

The drain trap of the third embodiment is attached to the drain of the bathroom as shown in FIG. In addition, the drainage equipment used for the said bathroom is demonstrated.
The bathroom is constituted by a waterproof pan 5 including a washing pan 51 where a user washes the body and a bathtub pan 52 on which the bathtub 9 is placed, and each waterproof pan 5 has a drain outlet 53 for drainage. ing.
An elbow member 6 is arranged and configured in the bathtub pan 52, and the elbow member 6 is connected to the drainage branch pipe 13 of the drain trap through a pipe or the like. The elbow member 6 is a pipe member having an L shape in cross section, and discharges the waste water in the bathtub 9 and the waste water generated on the bathtub pan 52 to the drain trap side.
In addition, a drain trap used in this embodiment is arranged and configured at the drain outlet 53 of the wash basin pan 51, and drainage generated on the wash basin pan 51 is drained into the drain trap through the drain outlet 53. Further, since the elbow member 6 is connected to the drainage branch pipe 13 of the drain trap, the drainage in the elbow member 6 is also drained into the drain trap. The drainage in the drain trap is finally drained from the discharge port 11 to the sewer pipe.
As shown in FIG. 14 or FIG. 15, the drain trap provided in the bathroom drainage facility of the present embodiment includes the first drainage channel 7, the second drainage channel 8, the main body 1, the flange portion 4, The lid portion 2, the backflow prevention wall 22, the discharge port 11, the Owan portion 12, the deodorizing pipe 3, the drainage branch pipe 13, and the branching convex portion 15 are configured.
The 1st drainage channel 7 points out the following channels. Drainage generated on the washing area pan 51 described later flows into the main body 1 of the drainage trap through the drain opening 53 and the flange portion 4 of the washing area pan 51, and passes through the inside of the deodorization pipe 3 and the lower end of the deodorization pipe 3. It flows into the Owan portion 12. The waste water that has flowed into the Owan portion 12 overflows from the Owan portion 12 and flows out of the Owan portion 12 through a notch portion 221 where the lower end of the backflow prevention wall 22 and the upper end of the Owan portion 12 are not in contact. Eventually, the water will be discharged from the discharge port 11 to the outside of the main body. The flow path through which the wastewater generated on the washing place pan 51 flows is the first drainage flow path 7.
In the second drainage flow path 8, drainage generated from the bathtub 9 and the bathtub pan 52 flows into the main body through the elbow member 6, the pipe body, and the drainage branch pipe 13 through the drainage port 53 of the bathtub pan 52. The Owan portion 12 passes through the outer peripheral portion and is finally drained from the discharge port 11. The flow path through which the drainage on the bathtub pan 52 and the drainage from the bathtub 9 flows is the second drainage flow path 8. Moreover, although the 2nd drainage flow path 8 is comprised in the Owan part 12 outer periphery, it is provided with sealing water uniquely. In the present embodiment, the sealed water is formed so that the bottom of the second drainage flow path 8 is raised to the height of the sealed water depth and functions as the sealed water depth securing wall 14. The sealed water depth of the second drainage flow path 8 forms the sealed water depth from the upper end of the drainage branch pipe 13 to the upper end of the sealed depth securing wall 14.
The main body 1 is a box that opens upward, and includes an Owan portion 12 to be described later. The main body 1 is circular when viewed from above, but is connected by a tangent line inclined from the main body 1 toward the discharge port 11.
The lid 2 is a member that includes an opening 21 through which drainage passes and covers the upper opening of the main body 1 in a watertight manner. The lid 2 is connected to the main body 1 by an adhesive. Note that a female screw for screwing with a flange portion 4 to be described later is engraved on the inner peripheral surface of the lid portion 2 opening inner peripheral surface.
As shown in FIG. 14 or FIG. 15, the backflow prevention wall 22 is provided as a backflow prevention wall surface configured to hang downward from the periphery of the opening 21 on the back surface of the lid portion 2. The backflow prevention wall 22 forms a notch 221 at a position facing the discharge port 11.
The flange portion 4 is a ring-shaped member that forms a flange protruding outward in the upper end, and is a member that engraves a male screw on the outer periphery that is screwed into the opening 21 of the lid portion 2. In addition, the deodorizing pipe 3 mentioned later is attached to the inner peripheral surface of the flange part 4 so that attachment or detachment is possible.
The discharge port 11 is a tubular body configured to extend integrally on the side surface of the main body 1 and is configured to discharge the waste water inside the main body to the outside of the main body. A drain pipe is connected to the discharge port 11, and the drainage in the main body 1 is finally drained into the drain pipe.
As shown in FIG. 14 or FIG. 15, the Owan portion 12 is a cylindrical wall configured to rise upward from the bottom surface of the main body portion 1, and drainage is stored therein. In addition, this Owan part 12 forms sealed water in cooperation with the deodorizing pipe 3 mentioned later. In this embodiment, the Owan portion 12 has at least the height of the sealed water specified by the JIS standard, etc., and the sealed water depth at this time is from the upper end of the Owan portion 12 to the lower end of the deodorizing pipe 3. Say height. In addition, the inner surface of the lower end of the backflow prevention wall 22 substantially contacts the outer surface on the upper end side of the Owan portion 12. By configuring in this way, even if a large amount of drainage from the second drainage flow path 8 described later is drained at once, the backflow prevention wall 22 is in contact from the lid portion 2 to the upper end of the owan portion 12, The drainage of the second drainage channel 8 hardly flows into the first drainage channel 7. Therefore, the drainage does not flow back on the washing place pan 51.
In addition, when a large amount of drainage is drained all at once on the washing place pan 51, the backflow prevention wall 22 is suspended from the lid part 2 and the lower end of the backflow prevention wall 22 and the upper end of the owan part 12 are substantially in contact with each other. The drainage of one drainage channel 7 flows into the second drainage channel 8 side.
The deodorizing pipe 3 is a cylindrical member that is detachably attached to the flange portion 4, and a connection mechanism with the flange portion 4 is configured at the upper end. Further, when the deodorizing pipe 3 is attached to the flange portion 4, the lower end of the deodorizing pipe 3 is disposed in the Owan portion 12 and is disposed with a gap from the bottom surface of the Owan portion 12. By doing in this way, sealed water can be provided in the Owan part 12.
The drainage branch pipe 13 is a branch pipe that is integrally extended to the outer surface of the main body 1 and is used to allow drainage from other drainage channels to flow into the main body 1. Or it is comprised as flat cross-sectional shape. In this embodiment, the drainage branch pipe 13 is connected to the above-described elbow member 6 via a pipe body.
The diverting convex portion 15 is a guide rib for diverting the drainage flowing in from the drainage branch pipe 13 along the Owan portion 12 without generating turbulent flow or the like, and has a mountain shape so as to face the inlet of the drainage branch pipe 13. It is configured above. The branching convex portion 15 is configured to be a triangular rib when viewed from the drainage branch pipe 13 side. The drainage that has flowed into the main body from the drainage branch pipe 13 abuts on the branching convex portion 15 and is split in the left-right direction, so that no turbulent flow is generated in the drainage.

The drain trap of the above embodiment is attached as follows.
The lid 2 and the main body 1 are connected in advance at the factory, but the contact between the backflow prevention wall 22 and the owan part 12 is as shown in FIG. 14 or FIG. The upper inner surface of the Owan portion 12 substantially contacts. The lid 2 and the main body 1 are connected by an adhesive, but the backflow prevention wall 22 and the owan 12 are not in contact but simply in contact. By making the backflow prevention wall 22 and the Owan portion 12 abut instead of bonding, the productivity of bonding is improved and there is no problem of dripping of the adhesive.
Further, a drain trap is attached to the drain port 53 of the washing pan 51 in advance at the factory or the like by the flange portion 4, and the elbow member 6 is also attached to the drain port 53 of the bathtub pan 52. The drainage branch pipe 13 of the drain trap and the elbow member 6 are connected by a pipe body.
Thereafter, the bathtub pan 52 and the washing pan 51 are installed in the bathroom, and the bathtub 9 is placed on the bathtub pan 52. At this time, the bathtub 9 is placed so that the drain outlet of the bathtub 9 is positioned above the drain outlet 53 of the elbow member 6. Thereafter, the elbow member 6 is appropriately provided with an eye plate and piping, and an apron is attached to the boundary between the bathtub 9 and the washing pan 51 to complete the construction.

The drainage trap having the above-described configuration has the following drainage flow.
When drainage occurs on the washing basin pan 51, the first drainage flow path 7 is drained into a drainage trap attached to the back of the washing basin pan 51 via the drainage port 53 and the flange portion 4 of the washinghouse pan 51. . Waste water in the drain trap passes through the deodorizing pipe 3 and is drained into the Owan portion 12. Further, drainage flows from the gap between the lower end of the deodorizing pipe 3 and the bottom of the Owan portion 12 and overflows from the Owan portion 12, but the drainage overflowing from the Owan portion 12 is finally drained from the discharge port 11 to the sewage. The Rukoto.
Moreover, although the waste_water | drain in the bathtub 9 is drained from the opening of the bathtub 9, as a 2nd drainage flow path 8, it is a pipe body and a drain outlet into the elbow member 6 attached from the back surface of the drain outlet 53 of the bathtub pan 52. 53, and then drained.
The drainage generated on the bathtub pan 52 is drained into the elbow member 6 through the drainage port 53 as the second drainage flow path 8.
Moreover, the waste water drained into the elbow member 6 is drained into the drain branch 13 of the drain trap as a second drain channel 8 through the tubular body. The water is drained from the drain branch 13 into the drain trap. The drainage that has flowed into the main body from the drainage branch pipe 13 abuts on the branching convex portion 15 and is split in the left-right direction, so that no turbulent flow is generated in the drainage. The drainage drained into the drain trap passes through the outer periphery of the Owan portion 12 in the main body 1 and the seal depth securing wall 14 and is drained from the discharge port 11.
The flow path through which the drainage on the bathtub pan 52 and the drainage from the bathtub 9 flows is the second drainage flow path 8.
The drainage discharged from the discharge port 11 is drained to the sewer pipe.
Further, even when a large amount of drainage is suddenly generated in the first drainage channel 7, the drainage of the first drainage channel 7 is prevented from entering the second drainage channel 8 inside the drain trap by the backflow prevention wall 22. Therefore, the drainage does not substantially flow back to the bathtub pan 52 or the bathtub 9 side and is smoothly drained to the discharge port 11 side.
In addition, when a large amount and sudden drainage occurs on the second drainage channel 8, the drainage of the second drainage channel 8 does not flow into the first drainage channel 7 by the backflow prevention wall 22, so that the washing place The drainage does not flow backward on the pan 51 and is drained smoothly. Thus, in this embodiment, since the backflow prevention wall 22 is configured, the drainage of each of the first drainage channel 7 and the second drainage channel 8 does not flow into each channel. Effectively prevent backflow to drainage equipment.

In addition to the embodiments described above, the drain trap of the present invention can be modified as appropriate without departing from the scope of the claims.
For example, in the above-described embodiment, the backflow prevention wall 22 and the Owan portion 12 are configured only by contact, but this may be engaged by an elastic claw or elastic engagement or may be connected by adhesion. . In this method, since the gap between the backflow prevention wall 22 and the Owan portion 12 can be made more completely watertight, the first drainage channel 7 and the second drainage channel 8 can be separated in a more watertight manner. Can be achieved.
Moreover, in the said Example, although the sealing depth ensuring wall 14 was comprised by raising the bottom face, it is not specifically limited to this shape, If there is a shape which can form the sealing depth, there will be no problem in particular.

DESCRIPTION OF SYMBOLS 1 Main body part 11 Outlet 12 Owan part 121 Stepped part 13 Drainage branch pipe 14 Sealing depth securing wall 15 Divergence convex part 2 Lid part 21 Opening part 22 Backflow prevention wall 221 Notch part 222 Step part 3 Deodorant pipe 4 Flange part 5 Waterproof pan 51 Washing pan 52 Bath pan 53 Drain port 6 Elbow member 7 First drain channel 8 Second drain channel 9 Bath

Claims (7)

A box body whose upper side is open, and a main body portion 1 provided with sealed water inside,
A lid 2 that opens the opening 21 through which drainage passes and further covers the opening of the main body 1;
A discharge port 11 for discharging the internal waste water constituted on the side surface of the main body 1;
Owan part 12 which has a cylindrical wall in main body part 1 and stores a part of the drainage inside,
A deodorizing pipe 3 that is cylindrical and has a lower end disposed in the Owan portion 12 to form a sealed water in cooperation with the Owan portion 12;
A drainage branch pipe 13 for allowing drainage from other than the opening 21 configured on the side surface of the main body 1 to flow into the main body 1;
A drain trap comprised of
A drainage trap comprising a backflow prevention wall 22 that hangs downward from the lid portion 2. The backflow prevention wall 22 is provided with a notch 221 constituting a drainage portion of the drainage, and the notch 221 is arranged so as to face the direction of the discharge port 11 when the lid 2 is attached to the main body 1. The drain trap according to claim 1, wherein: The said Owan part 12 is started and comprised to the height which can ensure a required sealing depth when the said deodorizing pipe 3 is arrange | positioned in an appropriate location, The said Claim 1 or Claim 2 characterized by the above-mentioned. Drain trap. Inside the main body 1, the first drainage channel 7 through which the drainage that flows in from the opening 21 is drained from the outlet 11, and the second drainage from which the drainage that flows in from the drain branch 13 is discharged from the outlet 11. The second drainage flow path 8 is disposed on the outer periphery of the Owan portion 12 together with the flow path 8, and the bottom surface of the second drainage flow path 8 is raised to form the sealed water depth securing wall 14. The drainage trap according to any one of claims 1 to 3, wherein sealed water is formed in the drainage channel (8). The drain trap according to any one of claims 1 to 4, wherein a lower end of the backflow prevention wall 22 and an upper end of the Owan portion 12 are substantially in contact with each other. A stepped portion 222 is formed on the backflow prevention wall 22 and a stepped portion 121 is formed on the upper end of the Owan portion 12, respectively, and the stepped portion 222 and the stepped portion 121 are locked and substantially in contact with each other. The drainage trap according to any one of claims 1 to 4. 5. The drain trap according to claim 1, wherein the back flow prevention wall 22 has a lower end side surface substantially in contact with an upper end side surface of the owan portion 12.

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