JP2013053401A - Drain piping of bathroom - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a drain piping of a bathroom including bathtub piping such that drain water from a bathtub can be efficiently discharged to a sewage side.SOLUTION: The drain piping of the bathroom includes a bathtub UB provided with a bathtub drain port 1, a washing space pan P1 installed adjacently to the bathtub UB and including a washing space pan drain port, and a washing space pan trap installed below the washing space pan P1 and discharging internal drain water downstream while drain water from the washing space pan discharge port flows in. Further, drain piping in which drain water from the bathtub drain port 1 includes at least primary bathtub piping which communicates with the washing space pan trap from the bathtub drain port 1, and second bathtub piping BP2 branching off from a branch place provided to the first bathtub piping and joining at a confluence place provided to piping on a downstream side of the washing space pan trap, and including a bypass trap 5 between the branch place and confluence place.

Description

  The present invention relates to a bathroom drain pipe, and more particularly to a bathroom drain pipe that improves drainage performance from a bathtub and improves cleanability.

  Conventionally, in a bathroom where a large amount of drainage is generated, such as a bathtub, in order to treat the generated drainage, a drain outlet is provided on the bottom surface of the waterproof pan of the bathtub or bathroom, and a drain is connected to this drain outlet. There is known a method of discharging water from a drain outlet to a sewage side. As an example, FIG. 4 shows a drainage pipe of a bathroom described in Patent Document 1.

The drainage pipe of the bathroom of the conventional example illustrated in FIG. 4 is composed of a bathtub, a bathtub pan, a washing pan, a bathtub pan drain, a washing pan trap, a bathtub drain plug, and a Futokoro tube as a tank body described below. Become. In Patent Document 1, a bathtub and a bathtub drain plug are omitted.
A bathtub is a rectangular parallelepiped tank body opened upward, and is provided with a bathtub drainage port for discharging drainage generated inside the bathtub on the bottom surface.
The bathtub pan is a waterproof pan on which the bathtub is placed, and has a bathtub pan drainage port for discharging drainage generated on the bathtub pan on the bottom surface.
The washing-place pan is a waterproof pan provided adjacent to the above-mentioned bathtub pan and used when the user of the bathroom is washing his / her body, etc., and discharges the waste water generated on the washing-place pan to the bottom. It is equipped with.
The bathtub pan drainer is a drainer provided below the bathtub pan, and drainage from the bathtub drainage port and the bathtub pan drainage port flows into the washing pan pan trap.
The washing place pan trap is a drain trap attached below the washing place pan.
A drain trap is a drain (drainage device) that has a function to prevent odors and pests from flowing backward from the downstream side such as sewage to the upstream side such as indoors. The odor and pests are upstream from this downstream side. The function to prevent backflow to the side is called “trap function”.
The washing place pan trap of this conventional example is configured such that the waste water from the washing place pan drainage port flows in and the drainage from the bathtub pan drainer flows in through the pipe. In particular, in this conventional example, two drainage pipes (“Fokoro pipe” described later) connecting the bathtub pan drainage and the washing place pan trap are provided, and the drainage performance between the bathtub drainage and the washing place pan trap is improved. It is configured to improve.
Moreover, the washing place pan trap is provided with a discharge port for discharging the internal waste water to the sewage side.
The bathtub drain plug is a pipe that connects the bathtub drain outlet and the bathtub pan drainer.
The Futokoro pipe is a drainage pipe that connects the bathtub pan drainer and the washing place pan trap.

The conventional example of the present invention configured as described above is applied to a bathroom as follows.
First, a bathtub pan drainer and a washing place pan trap are connected in parallel via two Futokoro tubes.
Next, connect the drainage pipe on the sewage side to the outlet of the washing basin pan trap, and connect it to the bathtub pan drainage outlet so that the bathtub pan drainer communicates with the bathtub pan and the washing ground pan drainage outlet. Connect the washing pan trap to the washing pan respectively.
Finally, connecting the bathtub drainage port and the bathtub pan drainer while placing the bathtub on the bathtub pan, the connection of the drainage pipe of the conventional example is completed.

In the drainage pipe of the bathroom of the conventional example configured as described above, when drainage is generated in the bathtub, the drainage is finally performed from the bathtub drainage port, through the bathtub piping, the waterproof pan drainer, and the Futokoro pipe. It is discharged to the sewage side through the drain pipe from the outlet of the washing place pan trap.
In particular, in this conventional example, two Futokoro pipes are provided in parallel, and a large amount of bathtub drainage can be efficiently and quickly discharged from the bathtub pan drainer to the washing place pan trap.
In addition, when drainage occurs in the bathtub pan, the drainage is discharged from the bathtub pan outlet to the sewage side through the bathtub pan drainer and the Futokoro pipe, and finally from the outlet of the washing place pan trap through the drain pipe. .
In addition, when wastewater is generated on the washing place pan, the wastewater is discharged from the washing place pan drainage port to the sewage side through the washing place pan trap and from the discharge point of the washing place pan trap through the drainage pipe.
Moreover, in the drainage pipe of the bathroom, the bathtub drain outlet, the bathtub pan drain outlet, and the washing place pan drain outlet are all provided upstream of the washing place pan trap. For this reason, the trap function of the washing place pan trap can prevent odors and pests from flowing back or entering the indoor side from the sewage side through the bathtub drain outlet or the washing place pan drain outlet.

JP 2004-132172 A

However, the conventional drainage pipes in the bathroom have the following problems.
Problems 1. In the above-described conventional bathroom drainage pipe, when treating drainage from a bathtub, by providing a plurality (two) of Futokoro pipes, the bathtub pan drainer and the washing room pan trap are more than when there is only one Futokoro pipe. The waste water is configured so that it can be treated efficiently. However, even if the drainage between the tub pan drainer and the washing pan pan trap can be efficiently processed, if the trap function part of the tub pan trap downstream of the tub pan trap cannot handle a large amount of drainage, it will eventually drain into the washing pan pan trap. However, the drainage efficiency from the bathtub does not improve. However, the trap function is a mechanism that restricts the flow of drainage, such as adding a backflow prevention valve mechanism to the drainage flow path or providing a drainage reservoir, so that the drainage flows partially from below to above. By providing this, it is configured to prevent intrusion from the sewage side of odors and pests into the indoor side. For this reason, it is not easy to improve the drainage performance of each drain trap.
In this way, even though drainage from the bathtub pan drainer to the bathtub pan trap can be performed efficiently, the drainage performance of the bathroom pan trap is low. The problem arises that it cannot be performed efficiently.
Problem 2. Problems 1. As described in, when a large amount of drainage is performed from the bathtub, a large amount of drainage flows into the washing place pan trap through a plurality of Futokoro pipes. On the other hand, since the drainage of the wastewater from the washing place pan trap to the sewage side through the discharge port is performed through the trap function part, it may not be performed smoothly. As a result, if a large amount of wastewater is concentrated in the washing area pan trap and the water level in the bathtub is higher than the bottom surface of the washing area pan, the wastewater in the washing area pan trap will be discharged through the washing area pan drain outlet. The problem arises that a reverse flow is generated and the washing pan is soiled.
This invention is invented in view of the said problem, Comprising: In the drainage pipe of a bathroom including a bathtub piping, the drainage pipe of a bathroom which can discharge | emit the waste_water | drain from a bathtub to a sewer side efficiently is provided. Is for.

The present invention according to claim 1 is a drainage pipe for a bathroom,
From the bathtub UB provided with the bathtub drain 1, the washing area pan P 1 provided with the washing area bread drain 2 provided adjacent to the bathtub UB, and the washing area bread drain 2 provided below the washing area pan P 1. And a washing place pan trap 4 that discharges the internal waste water to the downstream side, and further,
The drain pipe from which the drainage from the bathtub drain 1 flows is branched from at least the first bathtub pipe BP1 communicating with the washing place pan trap 4 from the bathtub drain outlet 1 and the branch point provided in the first bathtub pipe BP1, A second bathtub pipe BP2 that joins at a joining point provided in a downstream pipe of the washing place pan trap 4 and includes a bypass trap 5 between the branching point and the joining point. It is the drainage pipe of the bathroom characterized by comprising.

  The present invention according to claim 2 is characterized in that, in the drainage pipe of the bathroom, the bypass trap 5 provided on the second bathtub pipe BP2 is a pipe trap configured by bending a pipe body. The bathroom drainage pipe according to paragraph 0008.

  According to a third aspect of the present invention, in the drainage pipe of the bathroom, at least one location on the first bathtub piping BP1 and at least one location on the second bathtub piping BP2 are configured by flexible tubes. It is drainage piping of the bathroom of paragraph 0008 or paragraph 0009 characterized by the above-mentioned.

  The present invention according to claim 4 is provided with a bathtub pan P2 provided with a bathtub pan drainage port 3 on which the bathtub UB is placed, and drainage from the bathtub pan drainage port 3 flows in the drainage pipe of the bathroom. The bathroom drainage pipe according to any one of paragraphs 0008 to 0010, wherein the bathtub pan drainer 6 is provided on the bathtub pipe.

  The present invention according to claim 5 is characterized in that, in the drainage pipe of the bathroom, the bathtub pan drainer 6 is a branching point that branches the first bathtub pipe BP1 and the second bathtub pipe BP2. The bathroom drain pipe according to paragraph 0011.

  The present invention according to claim 6 is configured such that in the drainage pipe of the bathroom, a large amount of drainage from the bathtub UB flows into the second bathtub pipe BP2 rather than the first bathtub pipe BP1. The bathroom drainage pipe according to any one of paragraphs 0008 to 0012, characterized in that it is a feature.

  According to the seventh aspect of the present invention, in the drainage pipe of the bathroom, a height difference is provided at the inflow position of the first bathtub pipe BP1 and the second bathtub pipe BP2 at the branch portion, and the second bathtub pipe BP2 is provided. The drainage pipe for a bathroom according to any one of paragraphs 0008 to 0013, wherein drainage at a position higher than that of the first bathtub pipe BP1 flows in.

According to the eighth aspect of the present invention, in the drainage pipe of the bathroom described above, the cleaning port 7 communicating with the second bathtub pipe BP2 is provided on the surface of the bathroom. It is the drainage piping of the bathroom as described in any one.
In addition, the “front side of the bathroom” mentioned here is “the living space side of the bathroom”, and more specifically, “in the bathroom, the user of the bathroom destroys the bathroom equipment and the like from the living space side. It is the side that can be operated without having to. For example, the upper surface of the wash basin and the inner surface of the bathtub are the “front side of the bathroom”. Also, if the top surface of the bathtub pan or the outer surface of the bathtub is configured so that a blindfold member that covers the space between the side of the bathtub and the end of the washing area, the so-called `` apron member '' is not removable from the bathtub or the washing area, Because it is a “part where the user of the bathroom cannot operate from the living space side”, it becomes “the back side of the bathroom”, but when the apron member is configured to be removable, the apron member should be destroyed ( Since it becomes “the side where the user of the bathroom can operate from the living space side”, it becomes “the front side of the bathroom”.

In this invention of Claim 1, bathtub piping was branched and the drain trap was provided in each branched bathtub piping. Thereby, the drainage performance of a bathtub can be improved significantly.
In the present invention described in claim 2, the bypass trap is a tube trap having a bent tube. As a result, a pipe trap with higher drainage performance than the general reverse one trap is used for the second bathtub pipe that discharges the drainage from the bathtub directly to the sewage side without going through the washing pan drain outlet etc. The drainage performance of the overall bathroom drain pipe can be improved.
In this invention of Claim 3, the at least 1 location on the 1st bathtub piping and the at least 1 location on the 2nd bathtub piping were comprised with the flexible tube. Thereby, positioning adjustment can be performed at the time of construction of bathroom piping.
In this invention of Claim 4, while providing the bathtub pan which receives the water leak from a bathtub, etc. under the bathtub, it comprised so that the waste_water | drain produced on this bathtub pan might join the drain piping of a bathroom. Thereby, the waste_water | drain produced on the bathtub pan can be discharged | emitted to the sewer side using the drainage pipe of a bathroom.
In this invention of Claim 5, it comprised so that a bathtub piping might be branched into a 1st bathtub piping and a 2nd bathtub piping with a bathtub pan drainer. Thereby, a branch location can be easily provided. Moreover, when employ | adopting invention of Claim 6, Claim 7, it can process easily, if the device of a structure is devised inside a washing-room bread drainer.
In invention of Claim 6, it comprised so that the waste_water | drain from a large amount of bathtubs might flow into the 2nd bathtub piping side rather than the 1st bathtub piping side. This makes it difficult for a large amount of drainage to flow to the first bathtub piping side that communicates with the washroom pan drainage outlet, and the wastewater from the bathtub flows back from the washplace pan trap to the washroom pan drainage outlet accordingly. It is possible to reduce the case of soiling the bread.
In this invention of Claim 7, the height difference is provided in the inflow position of the 1st bathtub piping and the 2nd bathtub piping, and the waste_water | drain of the position higher than a 1st bathtub piping flows in into a 2nd bathtub piping. Configured to do. As a result, unlike the first bathtub piping, which can easily clean the inside from the washing pan drain outlet, the specific gravity of the second bathtub piping, which is difficult to clean inside the piping as it is, is higher than the drainage. It is possible to prevent the dust that is difficult to be discharged from flowing in.
In this invention of Claim 8, the cleaning port connected to the 2nd bathtub piping was provided in the surface of the bathroom. Thereby, even if the inside of the 2nd bathtub piping becomes dirty or the tube clogging occurs, the inside of the 2nd bathtub piping can be easily cleaned through this cleaning port.

It is sectional drawing of the planar view direction of the drainage piping of the bathroom of this invention. It is AA sectional drawing of FIG. It is BB sectional drawing of FIG. It is a top view of the drainage piping of the conventional bathroom.

Below, the 1st example of the present invention is described, referring to drawings.
The drainage pipe of the bathroom of the first embodiment shown in FIGS. 1 to 3 includes a bathtub UB, a bathtub pan P2, a washing pan P1, a bathtub drain plug 11, a bathtub pan drainer 6, a washing pan pan trap 4, It is comprised from the bypass pipe trap, the waste_water | drain confluence | merging pipe | tube 20, the Futokoro pipe | tube, the apron member 21, and the pipe body for piping.
The bathtub UB is a rectangular parallelepiped tank body opened upward, and includes a bathtub attachment port 8 on the bottom surface.
The bathtub pan P2 is a waterproof pan on which the bathtub UB is placed, and is provided with a bathtub pan attachment port 9 on the bottom surface. Moreover, the cleaning port 7 is provided on the bathtub pan P2 and on the side adjacent to the washing pan P1 side described later. The cleaning port 7 is normally watertightly closed by a removable cover member 12.
The washing-place pan P1 is a waterproof pan provided adjacent to the bathtub pan P2 and washed by the user of the bathroom, etc., and has a washing-place pan mounting opening 10 on the bottom surface (in this embodiment, the bathtub The pan P2 and the washing pan P1 are integrally formed, and the bathtub pan P2 and the washing pan P1 are partitioned by the rising wall 22 at the boundary portion).
The bathtub drain plug 11 is a substantially cylindrical tube body, and an upper end is attached to the bathtub attachment port 8 and a lower end is connected to the bathtub pan drainer 6. As described above, the upper end inside of the bathtub drain plug 11 becomes the bathtub drain opening 1 by being attached to the bathtub mounting opening 8. Since it is comprised in this way, this bathtub drain plug 11 forms the bathtub piping from the bathtub drainage port 1 to a branch part in a part of bathtub piping, specifically, bathtub piping.
The bathtub pan drainer 6 is a substantially bowl-shaped drainer whose upper part is opened, and is provided below the bathtub pan P <b> 2, and its upper end is attached to the bathtub pan attaching port 9. Moreover, the cover member which provided the bathtub 7 drainage port 3 provided with the float valve 13a in which the waste_water | drain on the bathtub pan P2 flows in in the upper opening, and the connection cylinder 13b which connects the lower end of the bathtub drain plug 11 was provided. 13 is provided.
In addition, the side surface of the bathtub pan drainer 6 is provided with two connecting portions for discharging the drained water flowing into the downstream to the downstream side. Of these two connecting portions, the connecting portion connected to the first bathtub piping BP1 described later is the first connecting portion 14b, and the connecting portion connected to the second bathtub piping BP2 is the second connecting portion 15b. And
When the construction is completed, the bathtub drain 1 is arranged at a position directly above the connecting cylinder 13 b of the cover member 13.
And as shown in FIG. 2, the bathtub drain plug 11 is piped so that it may hang down from the bathtub drain port 1, and the lower end is arrange | positioned inside the bathtub pan drainer 6. As shown in FIG.
Moreover, the 1st water intake 14a provided in the inside of the bathtub pan drainer 6 and connected to the 1st connection part 14b is juxtaposed in the position shifted | deviated from the bathtub drain plug 11 in planar view. . Moreover, in side view, the 1st water intake 14a is provided in the position applied to the bottom face of the bathtub pan drainer 6 toward the horizontal direction.
Moreover, the 2nd water intake 15a provided in the inside of the bathtub pan drainage 6 and connected to the 2nd connection part 15b is arrange | positioned concentrically with respect to the bathtub drain plug 11 in planar view. Yes. The second water intake 15 a itself is also configured to have a larger diameter than the lower end of the bathtub drain plug 11. In the side view, the second intake port 15a is arranged at a position higher than the first intake port 14a (at the same time, higher than the bottom surface of the bathtub pan drainer 6). Moreover, the 2nd water intake 15a is provided in the inside of the bathtub pan drainer 6, facing the lower end of the pre-branch bathtub piping.
Moreover, the opening area of the 2nd water intake 15a is provided so that it may become larger than the opening area of the 1st water intake 14a.
Since it comprised in this way, bathtub piping is 1st bathtub piping BP1 which flows toward the washing place pan trap 4 in this bathtub pan drainer 6, and 2nd bathtub piping BP2 which flows toward the trap 5 for bypasses Branch to That is, the bathtub pan drainer 6 is provided on the bathtub pipe, and is a branching point that branches the first bathtub pipe BP1 and the second bathtub pipe BP2.
The washing place pan trap 4 is a drain trap generally called a reverse one trap, and specifically includes a trap body 16 and a deodorizing cylinder 17 described below.
The trap body 16 has a bottomed cylindrical Owan portion 16a that opens upward, an outer peripheral portion 16b that is provided so as to surround the Owan portion 16a, and into which drainage overflowing the Owan portion 16a flows. The washing area pan drain port 2 provided at the upper end of the outer peripheral portion 16b is provided below the washing area pan P1, and the upper end is attached to the washing area pan mounting port 10.
The trap body 16 is provided with a discharge port 16c on the side surface of the outer peripheral portion 16b on the side surface of the trap body 16 to discharge the waste water that has passed through the outer peripheral portion 16b to the sewage side. The branch pipe part 16d connected with the 1st connection part 14b through is provided.
The deodorizing cylinder 17 is a cylindrical member provided with a flange portion 17a protruding in the outer peripheral direction at the upper end, and when the construction is completed, the end portion of the flange portion 17a is watertightly connected to the washing basin drain port 2 and the lower end Is disposed inside the Owan portion (when the construction is completed, the lower end of the deodorizing cylinder 17 is disposed below the upper end of the Owan member).
The bypass trap 5 is a member called a pipe trap in which a part of a pipe body is bent into a substantially V shape, and an upstream end is a second connection part 15b and a downstream end is a ft roller. Each is connected to a tube. Moreover, the cleaning pipe connection part 19 which connects the cleaning pipe 18 mentioned later is provided in the downstream of the substantially V shape.
The Futokoro tube is a flexible tube having rigidity in the axial direction and a little flexibility in the side surface direction, and can be adjusted by absorbing a slight positional deviation at the time of piping construction.
The junction pipe 20 is a pipe body having a substantially Y shape in a plan view, and has two upstream end portions (two end portions above the Y shape) at the discharge port 16c of the washing place pan trap 4, And the Futokoro pipes connected to the bypass trap 5 are respectively connected. A sewage-side underfloor pipe is connected to one end on the downstream side.
Since it comprised in this way, 1st bathtub piping BP1 and 2nd bathtub piping BP2 merge in this merge pipe 20. FIG. That is, the junction pipe 20 is a junction where the first bathtub pipe BP1 and the second bathtub pipe BP2 are joined.
The cleaning pipe 18 is a hose pipe that connects between the cleaning port 7 and the cleaning port 7 connecting pipe, and has flexibility.
The apron member 21 is a plate-like member that is detachably disposed on the side of the wash basin side of the bathtub UB, and covers the outer surface of the bathtub UB and the upper surface of the bathtub pan P2. The side surface is arranged at the boundary between the bathtub pan P2 and the washing pan P1 so as to contact the inner side surface of the bathroom.
Each of the above members is made of a hard resin except for the Futokoro tube, the cleaning tube 18, and packing for ensuring watertightness.

The bathroom drainage pipe of the present invention configured as described above is constructed and attached to the bathtub UB, which is a tank body, as follows. Although not described in detail, water-tight connection / fixation is performed by connecting through a packing or bonding with an adhesive or the like to a portion where water-tightness is required at a connection portion between members.
At the time of construction, the bathtub pan P2 and the bathroom pan are connected at the construction site, and the side wall and the top surface of the bathroom are assembled in advance with this as the bottom surface.
When constructing the drainage pipe of the bathroom using the present invention, first, one end of the Futokoro pipe is connected to the first connecting portion 14b of the bathtub pan drainer 6, and the washing place pan trap 4 is connected to the other end of the Futokoro pipe. The branch pipe portion 16d of the trap body 16 is connected (hereinafter, the Futokoro pipe connected to the first connecting portion 14b is referred to as “first Futokoro pipe 14c”).
Further, the upstream end of the bypass trap 5 is connected to the second connecting portion 15b of the bathtub pan drainer 6, and further, the Futokoro tube is connected to the downstream end of the bypass trap 5 (hereinafter referred to as “this”). The Futokoro pipe connected to the bypass trap 5 is referred to as “second Futokoro pipe 15c”).
Next, the discharge port 16c of the trap body 16 is connected to one end of the two upstream ends of the merging tube 20 via a tube, and the downstream end of the second Futokoro tube 15c is connected to the other end. Connect each part.
From this state, after connecting the downstream end of the merging pipe 20 to the sewage side pipe, the upper end of the bathtub pan drainer 6 is connected to the bathtub pan attachment opening 9 of the bathtub pan P2, and the upper end of the washing area pan trap 4 is connected to the bathtub. Each of the pans P2 is attached and fixed to the bathtub pan mounting opening 9 in a watertight manner. At this time, even if there is a slight misalignment in the washing basin drainage port 2 and the tub pan drainage port 3 with respect to the washing basin pan attachment port 10 and the bathtub pan attachment port 9, the lavatory pan trap 4 provided with the washing basin drainage port. And the bathtub pan drainage device 6 provided with the bathtub pan drainage port 3 are connected by a first flexible roller tube 14c and a second flexible roller tube 15c having flexibility. Therefore, misalignment can be absorbed and construction can be performed easily and satisfactorily.
A cover member 13 is attached to the opening of the bathtub pan drainer 6. Thereby, the bathtub pan drainage port 3 is provided on the bottom surface of the bathtub pan P2, and the washing place pan drainage port 2 is provided on the bottom surface of the washing place pan P1, respectively.
Further, the cleaning port 7 and the cleaning tube connecting portion 19 are connected via the cleaning tube 18, and the cleaning port 7 is closed by the lid member 12.
Next, the bathtub drain plug 11 is attached and fixed to the bathtub attachment port 8, and the bathtub UB is placed on the bathtub pan P2. At this time, the bathtub drain plug 11 is placed while being connected to the connecting cylinder 13 b of the cover member 13. Also, as a matter of course, care should be taken so that the bathtub UB is arranged directly above the cleaning port 7 and the work on the cleaning port 7 cannot be performed.
Finally, the deodorizing cylinder 17 is connected to the trap body 16, and the apron member 21 is disposed on the side of the bathtub UB, so that the construction of the drainage pipe of the bathroom adopting the present invention is completed.

The drainage pipe of the bathroom of the present invention attached as described above can discharge the wastewater generated in the bathroom to the sewage side as follows.
(1). About drainage from the bathtub UB When drainage occurs in the bathtub UB, the drainage in the bathtub UB is the flow path of the bathtub UB piping of either the first first bathtub piping BP1 or the second bathtub piping BP2. Is discharged to the sewage side.
1st bathtub piping BP1: It passes through the bathtub drain plug 11 and the bathtub pan drainer 6 inside from the bathtub drain outlet 1, branches to the first intake port 14a inside the bathtub pan drainer 6, and the first intake water From the port 14a, the first connecting portion 14b, the first Futokoro tube 14c, the branch tube portion 16d, the Owan portion, the inside of the outer peripheral portion 16b, and the discharge port 16c are passed through, and the second bathtub pipe BP2 at the junction tube 20 And then discharged to the sewage side.
2nd bathtub piping BP2: It passes through the bathtub drain plug 11 and the bathtub pan drainer 6 inside from the bathtub drain outlet 1, branches into the second intake 15a inside the bathtub pan drainer 6, and the second intake water From the port 15a, it passes through the second connecting portion 15b, the bypass trap 5, and the second Futokoro pipe 15c, merges with the first bathtub pipe BP1 in the merge pipe 20, and is discharged to the sewage side.
In addition, the float valve 13a is incorporated in the bathtub pan drain port 3, and even if the inside of the bathtub pan drainer 6 becomes a full body, the drainage flows backward onto the bathtub pan P2 by the action of the float valve 13a. There is nothing.
(2). About drainage from the bathtub pan P2 When drainage occurs on the bathroom pan, the drainage on the bathtub pan P2 is the flow of one of the following first bathtub piping BP1 or second bathtub piping BP2. It passes through the road and is discharged to the sewage side.
1st bathtub piping BP1: From the bathtub pan drainage port 3, it passes through the inside of the bathtub pan drainage device 6, branches into the first intake port 14a inside the bathtub pan drainage device 6, and from the first intake port 14a, The first connecting portion 14b, the first Futokoro pipe 14c, the branch pipe portion 16d, the Owan portion, the inside of the outer peripheral portion 16b, the discharge port 16c, pass through, and merge with the second bathtub pipe BP2 in the merging pipe 20. It is discharged to the sewage side.
Second bathtub piping BP2: The bathtub pan drainage port 3 passes through the inside of the bathtub pan drainage unit 6, branches into the second intake port 15a inside the bathtub pan drainage unit 6, and from the second intake port 15a, It passes through the second connecting portion 15b, the bypass trap 5, and the second Futokoro pipe 15c, joins the first bathtub pipe BP1 in the joining pipe 20, and is discharged to the sewage side.
(3). About drainage from the wash basin pan P1 When drainage occurs on the wash basin pan P1, the drainage on the wash basin pan P1 is discharged from the wash basin drain port 2 into the deodorizing cylinder 17, branch pipe portion 16d, owan portion, outer peripheral portion 16b, It passes through the discharge port 16c and is discharged from the merging pipe 20 to the sewage side.
Above (1). Or (2). In the case of the drainage described in the above, since there are multiple drainage channels including traps, the drainage discharge speed at the trap part is doubled compared to the conventional example, and the drainage discharge is smoother by that amount. There is an effect that it can be performed.
Of the branched bathtub pipes, the pipe connected to the washing area pan trap 4 is the first of the two channels of the first bathtub pipe BP1 and the second bathtub pipe BP2 in the above embodiment. Because there is only one bathtub pipe BP1, the drainage that flows into the second bathtub pipe BP2 does not flow back to the washing station pan outlet 2, so that it is difficult for the drainage to flow back to the washing station pan outlet 2. There is an effect.

Above (1). To (3). When drainage occurs in the bathtub UB, on the bathtub pan P2 or on the wash basin pan P1, the drainage that passes through the first bathtub pipe BP1 passes through the deodorizing cylinder 17 from the wash basin drain port 2 when draining as described in 1. Or from the bathtub drain outlet 1 / tub pan drain outlet 3 through the branch pipe portion 16d into the Owan portion of the washing area pan trap 4 and reaches the upper end of the Owan portion. At this time, on the side of the branch pipe portion 16d, drainage accumulates in the bathtub pan drainage device 6 through the branch pipe portion 16d and the first Futokoro tube 14c to the height position of the upper end of the wan portion (from the bathtub pan drainage device 6 to the washing place) Whether drainage flows to the pan trap 4 side or drainage flows from the washing pan pan trap 4 to the bathtub pan drainer 6 side depends on which drain outlet drains).
In this way, the flow path extending from the inner peripheral surface to the outer peripheral surface of the deodorizing cylinder 17 or the flow path extending from the first inflow port to the upper end of the Owan portion is filled with the drainage. It becomes. This full water part prevents odors and pests from flowing backward from the sewage pipe to the upstream side of the full water part.
The above (1). Or (2). When drainage occurs in the bathtub UB or on the bathtub pan P2 during the drainage described in 1), the drainage passing through the second bathtub pipe BP2 flows from the bathtub drain port 1 / tub pan drain port 3 to the second flow. It flows into the bypass trap 5 through the inlet, and is discharged to the sewage side through the second Futokoro pipe and the merging pipe 20. At this time, a part of the portion of the bypass trap 5 bent in a substantially V shape shown in FIG. 2 is filled with drainage. This full water part prevents odors and pests from flowing backward from the sewage pipe to the upstream side of the full water part.
Thus, in 1st bathtub piping BP1 and 2nd bathtub piping BP2, the part which becomes water-filled by drainage on the flow path of bathtub piping arises, and the part which prevents the backflow of an odor and pests by this water-filled part is It is formed. This portion that prevents the backflow of odors and pests is called sealed water, and the portion that forms this sealed water is called sealed portion 23.
In the present embodiment, the sealing portion 23 is formed in each of the first bathtub piping BP1 and the second bathtub piping BP2, and the sealing water is accumulated, so that odors and pests may enter the indoor side from the sewage side. Is prevented.

In the present embodiment, when drainage is generated in the bathtub UB and drainage is performed, the drainage from the bathtub UB is discharged into the bathtub pan P2 through the bathtub drain plug 11. At this time, with respect to the bathtub drain plug 11, the second water intake 15 a is configured to face the bathtub drain plug 11 at a position directly below the bathtub drain plug 11. Drainage flows preferentially over the first water intake port 14a facing the direction bent 90 degrees with respect to the bathtub drain plug 11. Further, the water intake itself is provided so that the second water intake 15a has a larger opening area than the first water intake 14a. For this reason, it can be said that the drainage from the bathtub UB flows in a larger amount toward the second bathtub pipe BP2 than the first bathtub pipe BP1 when the bathtub UB drains (the bathtub is drained). Even if the inside of the bread drainer 6 is full, the second intake port 15a is provided with a larger opening area than the first intake port 14a. The amount of wastewater flowing into the water will be larger).
Here, it compares below about the drainage performance in the case of bathtub UB drainage of the washing place pan trap 4 and the trap 5 for bypasses. Since a large amount of drainage is discharged at once in the bathtub UB drainage, the flow path of the washing place pan trap 4 and the bypass trap 5 is almost always full during drainage from the bathtub UB except immediately after the drainage starts and immediately before the drainage. Become. In such a case, the following (a). , (B). Is raised.
(A). How large is the opening area of the drainage channel through which drainage passes.
(B). Does the wastewater flow smoothly without being disturbed in the part where the wastewater passes?
(A). When the washing area pan trap 4 and the bypass trap 5 are compared in terms of the size of the opening area of the drainage passage through which the wastewater passes, the washing area pan trap 4 has a branch pipe portion 16d, a deodorizing cylinder 17, an outlet 16c, etc. The opening area of the flow path portion (all of the branch pipe portion 16d and the deodorizing cylinder 17 must always pass) through which all drainage must pass is the opening of the flow path of the bypass trap 5 It is formed so as to have almost the same area. Since the small area of this flow path becomes a bottleneck, the area of the other part of the drainage flow path of the washing place pan trap 4 is overwhelmingly larger than the area of the flow path of the bypass trap 5. However, the opening area of the drainage channel is substantially the same as that of the bypass trap 5. For this reason, regarding the opening area of the drainage channel, it can be said that there is no advantage in either the washing place pan trap 4 or the drain trap 5.
(B). When the washing place pan trap 4 and the bypass trap 5 are compared with respect to whether or not the flow of the waste water flows smoothly without being disturbed, in the washing place pan trap 4, for example, in the portion indicated by the arrow R in FIG. Is flowing in a direction almost opposite to the outlet 16c. It is clear that there is a wasteful flow in the wastewater because there is a wastewater flow in a direction almost opposite to the outlet 16c that must pass through in the wastewater flow. In addition, when the drainage flows into the Owan portion from the end of the branch pipe portion 16d or the deodorizing cylinder 17, the drainage diffuses so as to spread and generates turbulent flow, and also flows when gathering again at the discharge port 16c. Disturbance occurs. In this way, in the washing place pan trap 4, a clear disturbance occurs in the flow of drainage.
On the other hand, the bypass trap 5 is a pipe trap formed by bending a pipe body, and the drainage flows in a straight line in a plan view, and there is no portion that diffuses and flows so that the drainage spreads. It can be said that the waste water flows through the trap 5 very smoothly. When viewed from the side, the bypass trap 5 bends in the vertical direction, but the upward and downward bending flow of the drainage also occurs in the washing place pan trap 4 and the bypass trap 5. In contrast, the bypass trap 5 has a folding angle of about 120 degrees as shown in FIG. 2, and the bypass trap 5 has a more turbulent flow in this respect. It can be said that the structure is difficult to occur (the bypass trap 5 is provided with a pipe for the cleaning pipe 18, and turbulence may occur in this portion, but the cleaning pipe 18 is not a pipe for draining, Since one end is blocked so that no drainage flow occurs, there is no significant effect on the drainage flow).
Accordingly, it can be said that the bypass trap 5 can drain more smoothly than the washing place pan trap 4 in terms of whether or not the flow of drainage flows smoothly without being disturbed.
Therefore, it can be said that the drainage performance of the bypass trap 5 is higher than the drainage performance of the washing place pan trap 4 because the turbulence hardly occurs.
As described above, when the bathtub UB is drained, a large amount of drainage flows toward the second intake port 15a rather than the first intake port 14a, and communicates with the second intake port 15a. Since the drainage performance of the second bathtub pipe BP2 is higher, “a large amount of bathtub drainage flows into the second bathtub pipe BP2 having a high drainage performance and the first bathtub pipe BP1 having a low drainage performance. A small amount of bathtub drainage flows, and there is an effect of “drainage piping in a bathroom that can efficiently treat drainage as a whole”.

In addition, since the drainage is contaminated water after the user of the bathroom has washed the body, dust such as hair and sand particles are mixed therein. These dusts may cause clogging inside the pipe. However, the tube clogging and the like can be eliminated by operating as follows.
In the case where clogging occurs on the first bathtub pipe BP1, the deodorizing cylinder 17 is removed from the washing area pan drainage port 2, and the high pressure washing is performed for cleaning from the washing area pan drainage port 2 through the branch pipe portion 16d and the discharge port 16c. The tube clogging can be eliminated by inserting the hose and pushing away the tube clogging.
When tube clogging occurs on the second bathtub pipe BP2, first the apron member 21 is removed, and the cleaning port 7 on the bathtub pan P2 and the lid member 12 that closes the cleaning port 7 are attached to the washing pan P1. Expose. Next, the lid member 12 can be removed, and a high-pressure washing hose for cleaning can be inserted from the cleaning port 7 through the cleaning pipe 18, and the clogged pipe can be washed away to eliminate the clogging. In addition, in the case of a present Example, the cleaning port 7 on the bathtub pan P2 removes the apron member 21, and becomes a "part which a user of a bathroom can add operation from on the washing-place pan P1 which is a living space." Since it is provided, it can be said that the cleaning port 7 on the bathtub pan P2 is provided on the front side of the bathroom.

Considering the ease of cleaning, when cleaning the first bathtub piping BP1, it becomes possible to carry out cleaning by taking out the small deodorizing cylinder 17 as described above, and directly into the washing area pan trap 4 It is possible to put in the hands of the cleaning worker. On the other hand, when cleaning the second bathtub piping BP2, it is necessary to remove the large apron member 21, and it is also impossible to directly put a cleaning operator's hand through the cleaning port 7, and the first bathtub piping BP1 The cleaning is clearly easier than the cleaning of the second bathtub pipe BP2. In consideration of this point, in this embodiment, in the bathtub pan drainer 6 which is a branching portion, a difference in height is provided at the inflow positions of the first bathtub pipe BP1 and the second bathtub pipe BP2, and the second bathtub The drainage water at a position higher than the first bathtub piping BP1 flows into the piping BP2. The effect which the said structure brings is demonstrated below.
Among the dust in the drainage that causes the tube clogging, the dust that is particularly likely to cause the tube clogging is a dust having a specific gravity of 1 or more. This is because dust having a specific gravity of less than 1 floats in the drainage along the flow of drainage, and if necessary, moves up and down and is discharged to the downstream side. This is because it is difficult to rise along the drainage flow in the portion where the flow of drainage, such as the sealed water portion 23, rises, and it is deposited in the portion where the flow of drainage rises, resulting in tube clogging. .
In this embodiment, when draining from the bathtub UB and from the top of the bathtub pan P2, the dust having a specific gravity greater than 1 is naturally accumulated on the bottom of the bathtub pan drainer 6 and then downstream. In many cases, it flows toward you. For this reason, wastewater containing dust having a specific gravity of 1 or more flows preferentially into the first water intake port 14 a provided at the bottom surface of the bathtub pan drainer 6 and passes through the washing place pan trap 4. It is discharged to the sewage side. The flow of the drainage from the first intake port 14a to the Owan portion is a flow directed substantially in the horizontal direction, and even a dust having a specific gravity of 1 or more can easily flow. The dust having a specific gravity of 1 or more that has reached the Owan part is difficult to ascend in the Owan part and accumulates in the Owan part. It is easy to clean by putting in, and cleaning work including removal of accumulated dust can be performed very easily.
On the other hand, the wastewater containing dust whose specific gravity is lighter than 1 flows preferentially into the second intake port 15a provided at a position higher than the bottom surfaces of the first intake port 14a and the bathtub pan drainer 6, It passes through the bypass trap 5 and is discharged to the sewage side. As described in paragraph 0022, since the flow of the drainage of the bypass trap 5 is extremely smooth, the dust having a specific gravity in the drainage that is lighter than 1 is pushed away by the momentum of the drainage, resulting in accumulation or adhesion in the piping. There is no occurrence of tube clogging. Since the second intake port 15a is arranged directly below the bathtub drain port 1, the dust having a specific gravity of 1 or more generated in the bathtub UB flows into the bypass trap 5 as it is from the second intake port 15a. However, there is almost no “cleaning work” itself in the bathtub UB, and the amount of dust itself is naturally small, and the flow of drainage of the bypass trap 5 is extremely smooth. Even if the specific gravity is 1 or more, it is often pushed away by the momentum of the drainage, and clogging is unlikely to occur in the second bathtub pipe BP2.

The embodiments of the present invention are as described above, but the present invention is not limited to the above-described embodiments, and can be freely changed without departing from the scope of the present invention.
For example, in the said Example, although bathtub piping is comprised from the bathtub piping branched into two, 1st bathtub piping BP1 and 2nd bathtub piping BP2, this invention is not a thing limited to this. For example, a bathtub pipe having the same configuration as that of the second bathtub pipe BP2 may be further added to the bathroom drain pipe and may be configured as a bathroom drain pipe provided with a bathtub pipe that branches into three at a branch point. Absent.
Moreover, in the said Example, although the cleaning pipe connection part 19 is provided in the downstream of the substantially V shape of the bypass trap 5, this invention is not limited to the said Example, The upstream side of a substantially V shape A cleaning pipe connecting portion 19 is provided on both the downstream side and the downstream side, and a plurality of cleaning ports 7 and cleaning pipes 18 corresponding to the cleaning pipe connecting portion 19 are provided to perform cleaning from both ends of the V-shaped trap 5. It doesn't matter.

DESCRIPTION OF SYMBOLS 1 Bath tub drain 2 Washing basin drain 3 Bath tub drain 5 Wash basin trap 5 Bypass trap 6 Bath tub drain 7 Cleaning port 8 Bath tub opening 9 Bath tub mounting port 10 Wash basin mounting port 11 Bath drain plug 12 Lid Member 13 Cover member 13a Float valve 13b Connection cylinder 14a First intake port 14b First connection part 14c First intake roller pipe 15a Second intake port 15b Second connection part 15c Second intake roller pipe 16 Trap body 16a Owan part 16b Outer peripheral part 16c Discharge port 16d Branch pipe part 17 Deodorant cylinder 17a Ridge part 18 Cleaning pipe 19 Cleaning pipe connection part 20 Junction pipe 21 Apron member 22 Standing wall 23 Sealing part UB Bathtub BP1 First bathtub pipe BP2 Second Bathtub piping P1 Washing pan P2 Bath pan

Claims (8)

A drain pipe in the bathroom,
A bathtub UB provided with a bathtub drain 1;
A washing place pan P1 provided with a washing place pan drainage port 2 provided adjacent to the bathtub UB,
A washing place pan trap 4 that is provided below the washing place pan P1 and into which the waste water from the washing place pan drain port 2 flows in and discharges the internal waste water to the downstream side,
In addition,
At least in the drainage pipe through which drainage from the bathtub drain 1 flows,
A first bathtub pipe BP1 communicating from the bathtub drain 1 to the washing area pan trap 4;
It branches from the branch location provided in 1st bathtub piping BP1, merges in the junction place provided in the piping of the downstream of the washing-room pan trap 4, and sets the bypass trap 5 between the said branch location and a junction location. A second bathtub pipe BP2 comprising:
A drainage pipe for a bathroom, characterized by comprising: In the bathroom drain piping above,
The bathroom drain pipe according to claim 1, wherein the bypass trap 5 provided on the second bathtub pipe BP2 is a pipe trap formed by bending a pipe body. In the bathroom drain piping above,
The bathroom according to claim 1 or 2, wherein at least one place on the first bathtub pipe BP1 and at least one place on the second bathtub pipe BP2 are configured by flexible pipes. Drainage piping. In the bathroom drain piping above,
While equipped with a bathtub pan P2 provided with a bathtub pan drainage port 3 for placing the bathtub UB,
The bathroom drainage pipe according to any one of claims 1 to 3, wherein a bathtub pan drainer 6 into which drainage from the bathtub pan drainage port 3 flows is provided on the bathtub pipe. In the bathroom drain piping above,
The bathroom drainage pipe according to claim 4, wherein the bathtub pan drainer 6 is a branching point that branches the first bathtub pipe BP <b> 1 and the second bathtub pipe BP <b> 2. In the bathroom drain piping above,
6. The apparatus according to claim 1, wherein a large amount of drainage from the bathtub UB flows toward the second bathtub pipe BP <b> 2 rather than the first bathtub pipe BP <b> 1. The bathroom drainage pipe described. In the bathroom drain piping above,
A height difference is provided at the inflow position of the first bathtub pipe BP1 and the second bathtub pipe BP2 in the branch portion,
The bathroom according to any one of claims 1 to 6, wherein drainage at a position higher than the first bathtub pipe BP1 flows into the second bathtub pipe BP2. Drainage piping. In the bathroom drain piping above,
The bathroom drain pipe according to any one of claims 1 to 7, wherein a cleaning port 7 communicating with the second bathtub pipe BP2 is provided on the surface of the bathroom.

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