JP2002081116A - Bathroom - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a bathroom which is simple in construction, facilitates wiring of operating members, and is improved in workability and maintenance ease. SOLUTION: In the bathroom, a waterproof pan 4 is arranged below a bathtub 2, and a drainage section 20 to which a drain port 19 of the bathtub 2 is directly connected is formed in a lower portion of the waterproof pan 4. Then, a drain port 24 for draining water stored in the waterproof pan 4 is formed in a bottom of the waterproof pan 4, and the drain port 24 is connected to the drainage section 20 via a drain pipe 25. Further, a drain plug 18 which is openable by remote control is arranged in the drain port 19 of the bathtub 2, and an operating member 41 for remote-controlling the drain plug 18 is connected from the drain port 24 of the waterproof pan 4 through the interior of the drain pipe 25 to the drain plug 18.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a bathroom, and more particularly to a bathroom provided with a remotely operated drain plug at a drain of a bathtub.

[0002]

2. Description of the Related Art As a bathtub drain plug, a pop-up drain plug which can be opened and closed by remote control is disclosed in, for example, Japanese Utility Model Publication No. 7-14455, Japanese Utility Model Publication No. 7-31752, and Japanese Unexamined Patent Application Publication No. 11-6185. It is publicly known from Japanese Patent Publication No.
In the bath tubs described in these publications, an operation section of an operation member for remotely controlling a drain plug provided at a drain port is provided at, for example, an upper edge portion of the bath tub, and the operation section is provided for guiding or protecting the operation member. A structure is adopted in which a pipe is hung between the operation section and the drain port, and an operation member is inserted through the pipe.

[0003]

However, in the bathtub, since it is necessary to provide a pipe over the entire length of the operation member, there is a problem that the structure is complicated and the cost is increased. In addition, since the operating member must be inserted and wired over the entire length of the pipe, it takes time and labor to construct, and the entire operating member is in the pipe, making it difficult to access the operating member. There is also a problem that maintenance is not easy.

[0004] The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a bathroom in which operation members can be easily wired with a simple structure and workability and maintainability can be improved. I do.

[0005]

The bathroom according to the present invention is provided with a waterproof pan below the bath tub, and a drain portion directly connected to a drain port of the bath tub is provided below the waterproof pan. A drain port for draining water accumulated in the waterproof pan is provided,
The drain port and the drain section are connected by a drain pipe, and a drain plug that can be remotely opened and closed is provided at the drain port of the bathtub. An operating member that remotely controls the drain plug is connected to the drain port of the waterproof pan through the drain port. It is characterized by being connected to the drain plug through a pipe

[0006]

Embodiments of the present invention will be described below in detail with reference to the accompanying drawings. 1 is a schematic perspective view of a bathroom showing an embodiment of the present invention, FIG. 2 is an enlarged sectional view of a main part of the bathroom, and FIG. 3A is a sectional view showing the structure of a drain port of a bathtub-side waterproof pan. 4 (b) is a cross-sectional view of a cap attached to the center of the drain, FIG. 4 (a) is a cross-sectional view when a remote control member is connected to the drain, and FIG. FIG. 5 is a cross-sectional view showing a state where the protective cap is mounted on the distal end of the remote control member.

In FIG. 1 and FIG. 2, reference numeral 1 denotes a unit type bathroom which is suitable for installation on a floor or a building having a low base height (for example, a shoeslide height ha = 300 mm or less). Inside, a bathtub 2 and a washing place 3 adjacent to the bathtub 2 are provided. The bathtub 2 in the illustrated example is provided with a waterproof pan 4 below and has a so-called double pan structure, so that even if water leaks from the bathtub 2, this is stopped by the waterproof pan 4 and water leaks to the outside. Is configured to be able to be prevented.

The washing place 3 is formed by a waterproof pan (also called a washing place bread) 5. Bathtub side waterproof pan 4
And the waterproof pan 5 on the washing area side are formed separately in the illustrated example and are joined to each other in the bathroom 1 so as to be adjacent to each other in a watertight manner, but may be integrally formed. The floor surface of the waterproof pan 5 on the washroom side is set at a position higher than the bottom surface of the waterproof pan 4 on the bathtub side. On one side of the washing place 3, an entrance 7 communicating with the dressing room 6 is provided.

A drain port (washing station drain port) 8 is formed near the bathtub side of the waterproof pan 5 on the washing station side, and a first (bottom) portion of the waterproof pan 5 below the drain port 8 is located below the drain port 8.
Drain trap (washing place drain trap) 9 is provided. Since the first drain trap 9 is the same as the existing one, the description of the specific structure is omitted.

The first drain trap 9 is connected to a first drain pipe (washing drain pipe) 10 for draining water to the outside. The first drain pipe 10 has a predetermined gradient α, for example, α = 1/50 in consideration of drainability.
In addition, the floor of the washing place 3 is provided with a drain 8 from the entrance 7 side.
It has a gentle downward slope toward the side.

The entrance 7 of the bathroom 1 has an upper frame, a lower frame 1
An opening frame, for example, a door frame is provided which includes a vertical frame 1 and right and left vertical frames. In the lower frame 11, when a large amount of water overflows from the bathtub 2 to the washing place 3 side, drainage under the door for collecting and draining water directed to the entrance 7 side so as not to flow to the undressing room 6 side. A groove 13 is provided. In this case, it is preferable that the lower frame 11 is formed in a groove shape whose upper part is opened so as to have the door lower drain groove 13. The drainage groove 13 under the door is
It is set at a position higher than the bottom surface of the waterproof pan 4 on the bathtub side.

The water collected in the drain groove 13 under the door is drained into the waterproof pan 4 on the bathtub side through a drain pipe 14 under the door. A drain pipe joint 15 communicating with the door lower drain 13 is provided at a lower portion of the lower frame 11.
The drainage pipe 14 under the door is connected via the, and the other end of the drainage pipe 14 under the door is connected to the waterproof pan through the side wall of the waterproof pan 4 on the bathtub side in a watertight manner. Drain pipe under door 14
It is preferable that the pipes are formed so as to be inclined downward from the lower drainage groove 13 side to the waterproof pan 4 on the bathtub side.

The height ha from the skeleton floor 16 on the first floor or the upper floor to the floor 17 of the dressing room 6 is 300 mm or less, for example, 2 mm.
20 mm. The step between the floor 17 on the dressing room side and the floor on the side of the washing room 3 at the entrance 7 is suppressed to, for example, 3 mm or less, which is so-called barrier-free. In addition, in order to realize a bathroom easy for the elderly to use, the straddling height hb of the bathtub 2 is set low, for example, 445 mm, so that the installation height hc of the bathtub bottom from the skeleton floor 16 is set low.

The following drainage structure is employed in order to enable smooth drainage in which the backflow phenomenon is unlikely to occur in such a limited space on the first floor or on the upper floor and in the barrier-free specification. I have. That is, in a state where the bathtub 2 is not used (when the bathtub 2 is empty and the drain plug 18 is opened), when a large amount of water or dirty water flows into the washing place 3,
In order to prevent the drainage from flowing back into the bathtub 2, a drainage trap (second drainage portion) is provided below the drainage port 19 of the bathtub 2 and at the bottom (bottom) of the bathtub-side waterproof pan 4. 20 is also provided, and the second drain trap 20 is provided in the second drain pipe 2.
1 is connected, and the other end of the second drain pipe 21 is connected to the first drain pipe 21.
Is connected to an intermediate portion of the drainage pipe 10.

In this case, in order to provide the second drain trap 20 in a limited space below the bathtub-side waterproof pan 4, the bathtub-side waterproof pan 4 is provided as close to the bottom of the bathtub 2 as possible. A second drain trap 20 is provided directly connected to the second drain port 19. The second drain trap 20 has a water receiving part 22, and a water injection part 23 is vertically inserted into the water receiving part 22, and the water outlet 19 of the bathtub 2 is directly connected to the water injection part 23. I have.

A watertight structure is provided so that water in the bathtub side waterproof pan 4 is not drained from the water injection section 23. A drain port 24 for draining water accumulated in the waterproof pan 4 is provided at a lower portion (bottom, lowest part) of the bath pan side waterproof pan 4.
A drain pipe 25 is connected to the drain port 24 via an elbow 40, and the other end of the drain pipe 25 is connected to the water receiving portion 22 of the second drain trap 20. That is, the water in the bathtub-side waterproof pan 4 is drained from the drain port 24 through the second drain trap 20, and from the outside by passing through the second drain trap 20. This prevents the unpleasant odor and the like from entering the bathtub-side waterproof pan 4. The drain port 24 of the bathtub-side waterproof pan 4 is preferably provided with a float valve 26 that closes the drain port 24 by buoyancy to prevent backflow.

The second drain pipe 21 has a gradient β equal to or gentler than the gradient α of the first drain pipe 10, for example, β = 1/50 to 1/100. The gradient α of the first drainage pipe 10 is equal to or greater than the gradient β of the second drainage pipe 21, and the second drainage pipe 21 is located at an intermediate portion of the first drainage pipe 10. By connecting the other end (downstream end) at a predetermined angle (substantially right angle in the illustrated example),
By increasing the distance of the second drainage pipe 21 from the second drainage trap 20 to the connection with the first drainage pipe 10, a large amount of water flowing into the washing place 3 flows through the first drainage pipe 10. It flows vigorously, and the backflow to the second drain pipe 21 side is suppressed or prevented.

The following drainage structure is employed in the limited underfloor space in order to secure the gradient of the second drainage pipe 21 or the height difference in the flow direction. That is, the second drain pipe 21 has a cross-sectional shape having a lateral dimension larger than the height dimension in order to increase the height while avoiding interference with the lower surface (bottom surface) of the bathtub-side waterproof pan 4 at the portion facing the lower surface (bottom surface). That is, it is formed in a flat shape 27 that is flat horizontally.
Specifically, it is preferable that a portion of the second drain pipe 21 facing the lower surface of the bathtub-side waterproof pan 4 is formed of a flat joint pipe 28.

The flat joint pipe 28 is formed in a flat flat shape 27 from one end (upstream end, left end in the illustrated example) on the second drain trap 20 side to the vicinity of the other end. The diameter in the height direction gradually increases toward the end (downstream end) and the diameter in the horizontal direction gradually decreases, and the other end is formed in a circular shape. The center of the flat shape 27 is eccentric by a predetermined eccentric amount downward from the circular center at the other end.

The water receiving portion 22 of the second drain trap 20
On the upper side of the tub, a horizontally flat and flat drain port 29 is formed. In the illustrated example, the upstream end of the flat joint pipe 28 is provided with a flat elbow (horizontal flat flat) in the layout of the drain port 29 in view of layout. It is connected via a 45-degree elbow fitting 30). The second drain pipe 21 main body is connected to the downstream end of the flat joint pipe 28 via a normal elbow 31.

At the connecting portion 32 where the other end of the second drain pipe 21 is connected to the intermediate portion of the first drain pipe 10, the height of the second drain pipe 21 is equal to the height of the first drain pipe. 10 and the second drain pipe 21 is smaller than the first drain pipe.
Is connected eccentrically below the middle in the height direction. In order to make this connection, it is preferable that an eccentric cheese (eccentric pipe joint) 33 is employed.
The eccentric cheese 33 has a joint main body 33a provided in the middle (intermediate portion) of the first drain pipe 10, and an eccentric joint portion having a smaller diameter than the joint main body 33a is provided on one side of the joint main body 33a. 33b are formed. The center of the eccentric joint 33b is eccentric by a predetermined eccentric amount downward from the center of the joint main body 33a.

The drain port 19 of the bathtub 2 is provided with a pop-up drain plug 18 which can be opened and closed by remote control. An operating member 41 for remotely operating the drain plug 18 is provided with a drain port of the bath pan side waterproof pan 4. The drainage pipe 24 is connected to the drainage plug 18 through the drainage pipe 25. The operation member 41
As shown in FIG. 5, the cable comprises an operation wire having a flexible hollow cable 42 and a core wire 43 inserted in the hollow cable 42 so as to be able to advance and retreat.

To one end of the operating member 41, an operating section (switch section) 44 for pushing and pulling the core wire 43 to open and close the drain plug 18 is connected. Is provided on the upper edge.
When a switch (push button) (not shown) of the operation unit 44 is pressed, the drain plug 18 rises and is opened, and when the switch is pressed again, the drain plug 18 is lowered and returns to the closed state. The operation section 44 is preferably provided near the bathtub 2, but may be provided on any wall or cabinet as long as it is inside the bathroom 1.
The replacement and maintenance of the operation member 41 can be easily performed by removing the apron 45 detachably provided on the side surface of the bathtub 2.

The other end of the operating member 41 is guided to the drain port 24 of the bathtub-side waterproof pan 4 through a gap between the bathtub 2 and the bathtub-side waterproof pan 4, and further inserted into the drain pipe 25 from the drain port 24. The water is further led from the drain pipe 25 into the second drain trap 20 and connected to the drain plug 18 at the drain port 19 of the bathtub 2. In this case, as shown in FIG. 3A, an elbow 40 having an insertion hole 46 through which the operating member 41 passes at the center of the drain port 24 is connected to the drain port 24 of the bathtub side waterproof pan 4. Is preferred.

The elbow 40 has an elbow body 40a which is in contact with the bottom outer surface of the bathtub side waterproof pan 4, and a flange 40b which is in contact with the bottom inner surface of the bathtub side waterproof pan 4 and is screwed to the elbow body 40a. And these elbow bodies 40a
A U-packing 50, which is interposed between the flange 40b and seals the periphery of an elbow mounting hole 60 formed at the bottom of the bathtub-side waterproof pan 4, and a float plate 40c mounted in the flange 40b. are doing. Float eye plate 4
0c has a boss 5 having the insertion hole 46 at the center thereof.
2 are provided, and a plurality of drain ports 24 are formed around the boss portion 52. The float valve 26 is mounted below the boss 52 so as to be vertically movable.

A cap 54 is screwed onto the boss 52 via a cap packing 53. This cap 54 is, as shown in FIG.
It is preferable that a hole forming groove 56 that can easily form a hole 55 through which the operation member 41 is inserted is formed at the center of the upper surface. That is, the cap 54 is
It is possible to select one of two modes, that is, a case where one cap 54 has the hole 55 and a case where the hole 55 is not provided, in accordance with the case where the remote operation type drain plug 18 is adopted and the case where it is not adopted. I have. The cap packing 53 is for preventing drainage from flowing back through the insertion hole 46 when the float valve 26 is closed.

The drain plug 18 is, as shown in FIGS. 4A and 4B, a drain plug body 18a for opening and closing a drain port 19, and a drain plug body 18a removably mounted in the drain port 19. Plug mounting body 18 for supporting the water vertically
b, and the end (the other end) of the operation member 41 is connected to a lower portion of the drain plug attaching body 18b. In this case, as shown in FIG. 4A, after the end of the operating member 41 is pulled out from the drain port 19 of the bathtub 2 into the bathtub 2 and connected to the lower part of the drain plug mounting body 18b, the operation is started as shown in FIG. )
Then, the drain plug attaching body 18b is fitted in the drain port 19 and attached as shown in FIG.

As in the present embodiment, the drain port 1 of the bathtub 2
In the bathroom 1 provided with the second drain trap 20 through the drain trap mounting hole 61 provided in the bathtub-side waterproof pan 4 below the bath 9, it is possible to mount the operation member 41 through the drain pipe 25. The tip stops in the second drain trap 20 and the drain port 1 of the bathtub 2
It is difficult to draw from 9. Therefore, in the present embodiment, in order to solve the above-described problem, the operation member 41 is attached according to the following procedure. First, the operation member 41 is attached to the elbow attachment hole 60 provided in the bathtub side waterproof pan 4. The elbow 40 is passed through the insertion hole 46 of the float plate 40 c and sent to the drain pipe 25 connecting the elbow 40 and the second drain trap 20 below the drain port 19 of the bathtub 2. At this time, only the portion of the second drain trap 20 having the water receiving portion 22 is provided with the drain trap mounting hole 61 of the bathtub side waterproof pan 4.
However, the portion of the second drain trap 20 provided with the water injection portion 23 is not attached to the drain trap mounting hole 61.

Next, the end of the operating member 41 is passed through the cylindrical water injection section 23 of the second drain trap 20, and
The part of the drain trap 20 provided with the water injection part 23 is attached to the circular attaching part 62 formed in the water receiving part 22 and the circular drain trap attaching hole 61 of the bathtub side waterproof pan 4.
The drain trap mounting hole 61 is provided with the bathtub side waterproof pan 4.
A soft member (packing) 63 for preventing water leakage between the first and second drain traps 20 is attached.

Next, the operating member 41 is further pulled out. The operation member 41 is in a protruding state due to its own rigidity. A cylindrical drain port 19 is attached to the bottom of the bathtub 2 in advance, and the bathtub 2 is placed on the bathtub side waterproof pan 4 so that the operating member 41 in a protruding state penetrates the drain port 19.
And set it down. As a result, the drain port 19 of the bathtub 2
And the position of the water injection section 23 of the second drain trap 20 are aligned.
A first soft member 64 is attached to a lower portion of the drain port 19, and a second soft member 65 is attached to an upper portion of the water injection section 23 of the second drain trap 20. The soft members 64 and 65 are compressed when lowering the bathtub 2 to prevent water leakage from between the drain port 19 and the water injection section 23.
With this mounting method, the operating member 4 is placed in the second drain trap 20 below the drain port 19 of the bathtub 2.
1 can be easily passed through.

As shown in FIG. 5, the end of the operation member 41 is provided with a hollow bolt 57 for connection to the drain plug mounting member 18b.
The core wire 43 protrudes from the distal end of the hollow bolt 57. In this state, the operation member 41
When the wire is inserted into the drain pipe 25 or the like, the protruding core wire 43 may be caught, hindering smooth insertion and damaging the core wire 43. In order to solve such a problem, it is preferable that a protective cap 58 is detachably attached to an end of the operation member 41 at the time of insertion work.

According to the bathroom 1 having the above structure, the waterproof pan 4 is provided below the bathtub 2, and the drainage port 19 of the bathtub 2 is directly connected to the lower part of the waterproof pan 4 (drainage trap). 20), a drain port 24 for draining water accumulated in the waterproof pan 4 is provided at the bottom of the waterproof pan 4, and the drain port 24 and the second drain trap 20 are connected to the drain pipe 2.
5 and a drain plug 18 which can be remotely opened and closed is provided at a drain port 19 of the bathtub 2. An operating member 41 for remotely controlling the drain plug 18 is connected to the drain port 24 of the waterproof pan 4 through the drain pipe 25. To connect to the drain plug 18 through
With a simple structure, the operation member 41 can be easily wired using the drain pipe 25, and the workability and maintainability can be improved. That is, the bathtub side waterproof pan 4
A drain trap 20 to which the drain port 19 of the bathtub 2 is directly connected is provided at the lower part of the bathroom 1 in which the drain trap 20 and the drain port 24 of the bathtub side waterproof pan 4 are connected by a drain pipe 25. The operation member 41 for remotely controlling the drain plug 18 of the bathtub 2 is inserted and wired using the above, so that there is no need to separately provide a pipe unlike the related art, so that the structure can be simplified and the cost can be reduced.

In particular, since the operation member 41 is different from the prior art in which the whole is accommodated in the pipe, the portion between the drain port 24 of the bathtub side waterproof pan 4 and the operation section 44 is exposed.
By simply removing the apron 45 of the bathtub 2, the operation member 41 can be easily accessed, and replacement and maintenance thereof can be easily performed. Further, since the drain port 19 of the bathtub 2 and the drain port 24 of the bathtub side waterproof pan 4 are connected by the drain pipe 25, the operating member 41 of the bathtub 2 can be moved regardless of the position of the drain port 19 of the bathtub 2. Wiring can be easily passed to the drain port 19. In other words, the position of the drain port 19 of the bathtub 2 can be freely selected. Further, since the protection cap 58 can be attached to the end of the operation member 41, the operation of inserting the operation member 41 can be performed smoothly, and the workability and the maintenance property can be further improved.

A first drain trap 9 is provided at the drain port 8 of the waterproof pan 5 on the washing area side, and a first drain pipe 10 for draining to the outside is connected to the first drain trap 9 to drain the bathtub 2. A second drain trap 20 is provided below the mouth 19, a second drain pipe 21 is connected to the second drain trap 20, and the other end of the second drain pipe 21 is connected to the first drain pipe 10. Even if a large amount of water or dirty water flows into the washing place 3 when the bathtub 2 is not used, the water or dirty water is smoothly drained to the outside by the first drain pipe 10, There is no backflow from the drainage pipe 21 into the bathtub 2. Further, since the bathroom 1 having such a drainage structure does not require a high underfloor space, it is suitable for installation on a floor where the underfloor space is limited, or for barrier-free specifications. is there.

In other words, instead of draining the water in the bathtub through the drain trap in the washing place as in the prior art,
The first drain pipe 1 downstream of the drain trap 9 of the washing place 3
Since the water is merged and drained in the middle of 0, the backflow into the bathtub 2 when a large amount of water or dirty water flows into the washing place 3 can be prevented even in a limited underfloor space such as an upper floor specification. In addition, contamination of the bathtub 2 by sewage can be prevented. The water in the bathtub 2 is supplied to the second drain trap 2 under the bathtub 2.
Since the wastewater is drained through 0, it is possible to prevent an unpleasant odor or the like from the outside (sewer) from entering the bathtub 2.

Further, a drain trap (second drain trap) 20 directly connected to the drain port 19 of the bathtub 2 is provided below the waterproof pan 4 below the bathtub 2, and in the waterproof pan 4 below the waterproof pan 4. A drain port 24 for draining the accumulated water is provided, and a drain pipe 25 is connected to the drain port 24.
Is connected to the drain trap 20, so that water collected in the waterproof pan 4 can be drained in the drain pan 20 in a limited floor space on floors and barrier-free specifications.
And the unpleasant odor and the like from the outside can be discharged from the bathroom 1 through the inside of the bathtub-side waterproof pan 4 or the drain pipe 14 below the door.
Can be prevented from invading the inside. Further, since the float valve 26 is provided at the drain port 24 of the bathtub-side waterproof pan 4, when the drain plug 18 of the bathtub 2 is opened to drain the water of the bathtub 2, the water of the bathtub 2 is discharged to the second position. Drain trap 2
It is possible to prevent the water from flowing back into the bathtub-side waterproof pan 4 via the drain pipe 21 and the drain pipe 21.

In the waterproof pan 4 on the bathtub side, water leaking from the bathtub 2 and water drained from the drain groove 13 below the door via the drain pipe 14 below the door are collected. The water is drained through the drain trap 20 of 2,
Since the amount of drainage is small, there is no danger of backflow into the bathtub 2. Further, the bathtub-side waterproof pan 4 is provided as close as possible to the bottom of the bathtub 2, and a second drain trap 20 is provided below the bathtub-side waterproof pan 4 directly connected to the drain port 19 of the bathtub 2. Therefore, the second drain trap 20 can be provided in a limited underfloor space below the bathtub-side waterproof pan 4.

The second drain pipe 21 is connected to the bathtub-side waterproof pan 4.
In order to increase the height while avoiding interference with the lower surface at the portion opposing the lower surface of the, the cross-sectional shape having a larger horizontal dimension than the height dimension, that is, a flat shape 27 that is flat horizontally, is used for floor specifications, etc. In a limited underfloor space, a height difference or a gradient of the second drain pipe 21 can be easily obtained with a simple configuration, and drainage can be improved.

Further, at a connecting portion 32 for connecting the other end of the second drain pipe 21 for draining the water in the bathtub 2 to an intermediate portion of the first drain pipe 10, the height of the second drain pipe 21 is increased. The height dimension is smaller than the height dimension of the first drain pipe 10,
In addition, since the second drain pipe 21 is eccentrically connected to the first drain pipe 10 below the middle in the height direction,
In a limited underfloor space on the floor and in a barrier-free specification, a height difference or a gradient of the second drain pipe 21 can be easily obtained with a simple configuration, and drainage can be improved.

Although the preferred embodiments of the present invention have been described in detail with reference to the drawings, the present invention is not limited to the above-discussed preferred embodiments, and various design changes and the like can be made without departing from the scope of the present invention. Is possible. For example, the drainage portion provided directly below the drainage port of the bathtub below the bathtub-side waterproof pan is not limited to the drainage trap, but may be an elbow or the like.

[0041]

In summary, according to the bathroom of the present invention, a waterproof pan is provided below the bathtub, and a drainage portion is provided below the waterproof pan to which the drainage port of the bathtub is directly connected, and at the bottom of the waterproof pan. A drain port for draining water accumulated in the waterproof pan is provided, the drain port is connected to the drain section with a drain pipe, and a drain port that can be remotely opened and closed is provided at the drain port of the bathtub. To connect a remotely operated operating member from the drain of the waterproof pan to the drain plug through the drain pipe,
With a simple structure, the operating member can be easily wired using the drain pipe, and the workability and the maintainability can be improved.

[Brief description of the drawings]

FIG. 1 is a schematic perspective view of a bathroom showing an embodiment of the present invention.

FIG. 2 is an enlarged sectional view of a main part of the bathroom.

FIG. 3A is a cross-sectional view showing a structure of a drain port of the bathtub-side waterproof pan, and FIG. 3B is a cross-sectional view of a cap attached to the center of the drain port.

4A is a cross-sectional view when a remote control member is connected to a drain plug, and FIG. 4B is a cross-sectional view in a state where the drain plug is attached to a drain port.

FIG. 5 is a cross-sectional view showing a state where a protective cap is attached to a distal end of a remote operation member.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Bathroom 2 Bath tub 4 Bath tub side waterproof pan 18 Drain tap 19 Bath tub drain port 20 2nd drain trap (drainage part) 24 Bath tub side waterproof pan drain port 25 Bath tub side waterproof pan drain pipe 41 Operating member

Claims (1)

[Claims] 1. A waterproof pan is provided below a bath tub, and a drain portion is provided below the waterproof pan to which a drain port of the bath tub is directly connected, and water collected in the waterproof pan is drained at a bottom of the waterproof pan. A drain port is provided, the drain port and the drain section are connected by a drain pipe, and a drain plug which can be opened and closed by remote control is provided at the drain port of the bathtub. A bathroom connected to the drain plug from a drain port through the drain pipe.