JP2001182118A - Drainage structure of bathroom - Google Patents

Abstract

PROBLEM TO BE SOLVED: To fully obtain discharge of drainage per unit time from the branch connecting section side, obtaining the same trap height as a main trap section, in the case of drainage from the branch connecting section side without heightening the floor face of a bathroom. SOLUTION: In this drainage structure for bathroom, one of drains from the washing place 2 side formed to a floor pan 1 and drain from the bathtub 4 side placed on the floor pan 1 is connected on the main trap section 3 side, and the other is connected on the branch connecting section 6 side formed to the main trap section 3, and confluent drainage is conduced. A drooping piece 7 which droops to the trap lower-end position or lower of the main trap section 3 is formed to a branch connecting section 6. A branch drain pipe 5 connected to the connecting section 6 is formed in a flat shape as a long side, in the horizontal cross-sectional direction.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a drainage structure for a bathroom, and more particularly, to a main trap section for draining water from a washing place formed on a floor pan or drainage from a bathtub placed on the floor pan. Side, and the other side is connected to the branch connection part side formed in the main trap part, and the drainage structure of the bathroom that performs the combined drainage, more specifically, from the branch connection part side without raising the bathroom floor surface The present invention relates to a technique for achieving a sufficient drainage amount per unit time from a branch connection portion while obtaining a trap height similar to that of a main trap portion during drainage.

[0002]

2. Description of the Related Art Conventionally, as shown in FIG. 7, of the drainage from the washing place 2 formed on the floor pan 1 and the drainage from the bathtub placed on the floor pan 1, for example, Is connected to the main trap 3 and the drain from the bathtub is connected to the branch connection 6 formed in the main trap 3 to perform combined drainage. In such a bathroom drainage structure, the trap height H in the main trap portion 3 is J
It is 50 mm or more according to the IS standard. The same reference height is required also on the branch connection part 6 side formed in the main trap part 3.

[0003]

In order to obtain the reference height of the trap not only on the main trap portion 3 but also on the branch connection portion 6 side, the floor of the bathroom becomes high. When the floor of the bathroom rises, the height of the straddle between the bathroom and the dressing room increases, which is contrary to the recent tendency toward barrier-free.

Therefore, in the conventional example shown in FIG. 7, the hanging piece 7 a
In order to obtain a trap height H of not less than mm, the area of the drain port on the branch drain pipe 5 side is reduced, the amount of drainage per unit time is reduced, and sufficient drainage cannot be performed. There was a problem. Here, the height of the outer cylinder 29 forming the main trap portion 3 and the height of the inlet portion 32 of the branch drain pipe 5 are substantially equal.

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned problems, and it is desired to obtain a branch connection while obtaining a trap height similar to that of the main trap when draining water from the branch connection portion side without increasing the bathroom floor. It is an object of the present invention to provide a drainage structure for a bathroom, which can make a sufficient amount of drainage per unit time from a part side.

[0006]

According to the first aspect of the present invention, one of the drainage from the washing place 2 formed on the floor pan 1 and the drainage from the bathtub 4 placed on the floor pan 1 is used as the main trap portion 3.
The drainage structure of the bathroom is connected to the side and the other side is connected to the branch connection part 6 formed in the main trap part 3 to perform the combined drainage. It is characterized in that a drooping piece 7 that hangs down is formed, and the branch drainage pipe 5 that is connected to the branch connection portion 6 is formed in a flat shape having a longer side in the horizontal transverse direction. According to such a configuration, the hanging piece 7 on the branch connection portion 6 side
Is hanging below the lower end of the trap,
On the other hand, the branch drain pipe 5 has a flat shape in which the horizontal transverse direction is the long side while the trap height H is equal to or higher than that of the main trap on the main trap. This makes it possible to increase the amount of drainage per hit, and thus achieve the standard trap height H and make the amount of drainage sufficient while achieving barrier-free without raising the bathroom floor.

According to a second aspect of the present invention, a diversion projection 8 is provided on the bottom surface of the main trap portion 3 downstream of the branch connection portion 6 to divert drainage from the branch drainage pipe 5 in the pipe radial direction. Is what you do. According to such a configuration, the drainage from the branch drainage pipe 5 can be diverted to the left and right in the pipe radial direction by the branching projection 8, and the drainage from the branch drainage pipe 5 flows directly below the trap, thereby trapping the trap. Overflow can be reduced.

In this case, it is preferable that the branching projection 8 is provided on the upstream side of the drain from the trap.

[0009]

Embodiments of the present invention will be described below. 1 is a partially cutaway sectional view, FIG. 2 (a) is a schematic plan view, FIG. 2 (b) is a transverse sectional view of a branch drain pipe, FIG. 5 is a plan sectional view, and FIG. 6 is a longitudinal sectional view.

As shown in FIG. 6, a floor pan 1 in a bathroom is composed of a floor pan 10 for washing and a floor pan 11 having a bathtub set lower than the pan.
It is composed of Karan 1 on the side of the washing floor pan 10
6 is provided, and the bathtub 4 is installed on the bathtub floor pan 11.

As shown in FIG. 1, a washing-floor drain pan 22 is formed in the washing-floor floor pan 10, and a perforated flange 40 is inserted into the washing-floor drain pan 22 through a sealing material 25. The inner trap tube 28 is held and suspended. A trap member 20 having an outer trap tube 29 is attached to the perforated plate flange 40 from the lower surface side of the washing floor pan 10 to form a trap in the main trap portion 3. A bathtub drain hole 21 is formed in the bathtub floor pan 11, and a flange member 37 is inserted into the bathtub drain hole 21 via a sealing material 25, and a drain hole member 38 is inserted into the flange member 37.
The branch drain pipe 5 is attached from the lower surface side of the bathtub drain hole 21. The branch drain pipe 5 is connected to the trap member 20. A drainage tube portion 39 extends substantially horizontally from the trap member 20 to the downstream side of the main trap portion 3.

A perforated plate 26 and a hair catch 27 are attached to a perforated plate flange 40 provided in the washing area side drain hole 22. Further, the flange member 37 provided in the bathtub-side drain hole 21 is provided.
, A drain hose 30 is inserted to drain water from the bathtub 4. A large number of inflow holes 3 are provided around the flange material 37.
Numerals 1 are formed so as to be scattered in the circumferential direction, so that the drain water flowing into the bath pan 11 is drained into the outer trap cylinder 29 of the main trap unit 3 through the branch drain pipe 5.

A float valve 33 is disposed in the float chamber 34 at a position below the inflow hole 31 around the bathtub drain hole 21 so as to be able to move up and down. The lower limit position of the float chamber 34 is substantially at the same level as the upper end position of the outer trap cylinder 29 of the main trap section 3. However, in the normal state where the water level is at the upper end position of the outer trap cylinder 29 in the main trap portion 3, the float valve 33 is lowered by its own weight near the lower limit position of the float chamber 34, and the inflow hole 31 is opened. , Bathtub installed floor bread 1
It is designed to be able to receive the wastewater that has flowed into 1. When a large amount of wastewater flows into the main trap portion 3 and exceeds the upper limit of the outer trap cylinder 29, the water level rises to float the float valve 33 to the position shown in FIG. The float valve 33 is floated even when a large amount of water is drained from the bathtub 4 through the drain hose 30 into the drain hole member 38 by closing the bathtub installation floor pan 11 to prevent the inflow of drainage. The inflow hole 31 is closed to prevent backflow from the inside.

In the above configuration, the present invention is configured as follows.

As shown in FIG. 1, a hanging piece 7 is formed at a branch connecting portion 6 of the main trap portion 3 for connecting the branch drain pipe 5 to a position lower than the lower end position of the trap of the main trap portion 3. The hanging piece 7 may be located at the lower end position of the trap or below the lower end position of the trap. In this manner, the trap height on the branch connection portion 6 side is changed to the trap height H (about 50
mm).

As shown in FIG. 2B, the branch drain pipe 5 connected to the branch connecting portion 6 is formed in a flat shape having a longer side in the horizontal transverse direction. This flat shape may be the shape shown in FIG. 1B or an elliptical shape (not shown).

According to such a configuration, the hanging piece 7 on the side of the branch connecting portion 6 hangs below the lower end position of the main trap, and a trap height H equal to or higher than that of the trap is also obtained on the side of the branch drain pipe 5. Since the branch drain pipe 5 has a flat shape in which the horizontal transverse direction is the long side, the amount of drain water per unit time in the branch drain pipe 5 can be increased. Thus, it is possible to realize a configuration in which the standard trap height H is obtained and the amount of drainage is increased without increasing the bathroom floor.
That is, as shown in FIG. 4 and FIG. 6, the height of the flap portion 13 is suppressed by lowering the shoe shear height h of the portion for housing the lower end portion of the bathroom door 14 to achieve barrier-free,
It is easy to walk from the dressing room 12 and from the bathroom.

As shown in FIGS. 1 and 2 (a), a diversion projection 8 for diverting the drainage from the branch drainage pipe 5 in the pipe radial direction is provided on the bottom surface of the main trap part 3 downstream of the branch connection part 6. Provided. According to such a configuration, the drainage from the branch drainage pipe 5 can be diverted in the pipe radial direction by the branching projection 8, and the drainage from the branch drainage pipe 5 flows directly below the trap, thereby trapping the trap. It reduces excess overflow and provides good drainage.

Further, the branching projection 8 is provided on the upstream side of the drainage with respect to the main trap portion 3, so that the above-described branching action is further ensured.

In this embodiment, the branch drain pipe 5 and the outer trap cylinder 29 are provided separately, but they may be integrated.

[0021]

According to the first aspect of the present invention, one of the drainage from the washing area formed on the floor pan and the drainage from the bathtub placed on the floor pan is connected to the main trap section, and the other is the main trap section. The drainage structure of the bathroom that connects to the branch connection part formed in the part and performs drainage, and forms a hanging piece that drops below the lower end of the trap of the main trap part at the branch connection part and connects to the branch connection part The branch drainage pipe is formed in a flat shape with the long side in the horizontal transverse direction, so the hanging piece at the branch connection part hangs below the trap lower end position, and is equivalent to the main trap on the branch drainage pipe side While the above trap height can be obtained, the branch drainpipe has a flat shape with the horizontal transverse direction being the long side, so the drainage per unit time in the branch drainpipe can be increased. , However, the while achieving accessibility without increasing the floor of the bathroom, there is an advantage that the amount of wastewater to be sufficient with obtaining trap height of the reference.

According to a second aspect of the present invention, a diversion projection is provided on the bottom surface of the main trap portion downstream of the branch connection portion to divert drainage from the branch drainage pipe in the pipe radial direction.
In addition to the effect of the above, the diversion projection allows the drainage from the branch drainage pipe to be diverted to the left and right in the radial direction of the pipe. There is an advantage that can be.

According to the third aspect, since the branching projection is provided on the upstream side of the drainage with respect to the main trap, there is an advantage that the effect of the second aspect can be further enhanced.

[Brief description of the drawings]

FIG. 1 is a cross-sectional view showing an embodiment of the present invention and partially broken away.

2 (a) is a schematic plan sectional view of the same, FIG. 2 (b) is a transverse sectional view of a branch drain pipe, and FIG. 2 (c) is a transverse sectional view of another example of a branch drain pipe.

FIG. 3 is a partially broken sectional view of the bathroom according to the first embodiment.

FIG. 4 is a perspective view from the dressing room side of the same.

FIG. 5 is a plan sectional view of the same.

FIG. 6 is a longitudinal sectional view of the same.

FIG. 7 is a sectional view of a conventional example.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Floor pan 2 Washing place 3 Main trap part 4 Bathtub 5 Branch drainage pipe 6 Branch connection part 7 Hanging piece 8 Branch projection

Claims (4)

[Claims] 1. A branch connection in which one of drainage from a washing place formed on a floor pan and drainage from a bathtub placed on the floor pan is connected to a main trap portion, and the other is formed in a main trap portion. This is a drainage structure for bathrooms that connects to the drain side to perform merged drainage, and forms a drooping piece hanging below the lower end of the trap of the main trap part at the branch connection part, and the branch drain pipe connected to the branch connection part is horizontal. A drainage structure for a bathroom, which is formed in a flat shape having a long side in a transverse direction. 2. The bathroom according to claim 1, further comprising: a diversion projection for diverting the drainage from the branch drainage pipe in a pipe radial direction on a bottom surface of the main trap portion downstream of the branch connection portion. Drainage structure. 3. The drainage structure for a bathroom according to claim 2, wherein the diversion protrusion is provided on the upstream side of the drainage with respect to the trap. 4. The drainage structure for a bathroom according to claim 1, wherein the branch drainage pipe is formed in an elliptical shape.