JPH0730577B2 - Hot water drainage structure of bathtub - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a hot water drainage structure for a bathtub which can reliably and reliably connect a hot water drainage pipe connected to a hot water drainage port of a bathtub and a drainage pipe extending outdoors.

[0002]

2. Description of the Related Art Conventionally, as shown in FIG. 5, hot water discharged from a bathtub is connected to a hot water outlet of a bathtub a and to a hot water discharge pipe b extending along the floor base surface. The discharge pipe d extending outside the cloth foundation c to the outside is connected via the drain pipe f which is connected by fixing the connecting metal fitting e with, for example, an adhesive.

Further, since such a drainage pipe f is usually buried in the floor base surface, the connection between the hot water drainage pipe b and the discharge pipe d is performed at a level g or less of the floor basement surface, and as a result, the hot water drainage is performed. Dust such as sand and gravel tends to adhere to the adhesive application portion of the connection portion of the pipe b and the discharge pipe d, and due to the contamination of the application portion, good quality connection is hindered and hot water leaks from the connection portion. However, there is a problem to be solved, such as inferior certainty, and sand flowing into the hot water discharge pipe and the discharge pipe to obstruct the flow of the hot water discharge.

The present invention is based on the fact that a pipe receiving metal fitting, which is integrally provided with a receiving portion for exposing the joint portion of the hot water discharge pipe in a tubular portion that surrounds the discharge pipe and extends to the outside, is arranged on the floor base surface. It is an object of the present invention to provide a hot water drainage structure for a bathtub, which can prevent dust from adhering to the connection portion between the hot water pipe and the discharge pipe, can perform high-quality piping work, and can ensure the connection.

[0005]

In order to achieve the above object, the hot water discharge structure of a bathtub according to the present invention is a hot water discharge pipe which is connected to the hot water discharge port of the bathtub and has a joint extending along the floor surface.
The joint portion including the connecting metal fitting in a tubular portion that surrounds the discharge pipe and extends outdoors on a floor base surface on which a drain pipe having a discharge pipe that is connected to the joint portion and that extends to the outside is arranged. The pipe receiving fitting is integrally provided with a receiving portion having a semicircular cross section having a notch extending in the longitudinal direction for exposing the pipe.

[0006]

[Function] While connecting the joint of the hot water discharge pipe that is connected to the hot water outlet of the bathtub and that extends along the floor base surface and the discharge pipe that extends outdoors with the use of the connection fitting, the floor pipe surface is surrounded by the discharge pipe. The pipe receiving metal fitting is provided integrally with the tubular portion extending to the outside and the receiving portion for exposing the joint portion of the hot water discharge pipe and receiving the joint portion. Therefore, since the joint portion is connected to the discharge pipe at the receiving portion of the pipe receiving metal fitting, the receiving portion can protect the connecting portion from surrounding sand, gravel, etc., and by preventing dust from adhering to the connecting portion, The hot water discharge pipe and the discharge pipe can be reliably connected with good quality.

Further, since the discharge pipe is piped so as to be surrounded by the tubular portion of the pipe receiving metal fitting arranged in advance, the discharge pipe can be introduced accurately and smoothly by being guided by the pipe receiving metal fitting, and the pipe construction can be carried out. And the mounting accuracy can be improved.

[0008]

DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. 1 and 2, the hot water drainage structure of the bathtub of the present invention is connected to the hot water discharge pipe 5 having a joint 4 extending along the floor surface A and connected to the hot water outlet 3 of the bath 2. Further, on the floor base surface A on which the drainage pipe 7 having the discharge pipe 6 extending to the outside B is arranged, the receiving portion 10 for receiving the joint portion 4 is integrally formed on the tubular portion 9 surrounding the discharge pipe 6 and extending to the outside B. The provided pipe bracket 11 is arranged.

The bathtub 2 is a well-known box body having an upper opening, and is installed on the floor base surface A via the foot stand 20 and a hot water outlet provided in the floor plate 21 before the bathtub 2 is installed. Three
For example, a drain pipe 5 extending downward by using a nut fitting 22
Are connected in advance.

The hot water discharge pipe 5 integrally has a long joint 4 at the lower end of a vertical portion 24 whose upper end is connected to the hot water discharge port 3 through a bent portion 25, and the joint 4 is formed as described above. Along with the installation of the bathtub 2, the height is set to be approximately uniform with the level C of the floor base surface A. The joint portion 4 is gently inclined toward the outside B to guide the discharged hot water to the outside B.

The discharge pipe 6 connected to the joint 4 is
An outer wall W forming one wall of the bathroom R in which the bathtub 2 is arranged
Of the cloth foundation F, which supports the lower end of the cloth foundation F, penetrates through the through hole 30 formed in the rising portion F1 of the cloth foundation F, extends slowly into the drain tank (not shown) of the outdoor B, and the piping is installed in the outdoor B. Later it will be buried underground. The discharge pipe 6 is inserted into the tubular portion 9 of the pipe receiving fitting 11 which is arranged in advance.

As shown in detail in FIG. 4, the pipe receiving fitting 11 is provided integrally with the cylindrical portion 9 having a long cylindrical shape having an inner diameter through which the discharge pipe 6 can be inserted. Further, it has a receiving portion 10 having a semicircular cross section having a cutout portion 12 extending in the longitudinal direction. The receiving portion 10 is arranged with the recess 10A facing upward, and the joint 4 of the hot water discharge pipe 5 is provided with the recess 1A.
The upper half of the joint portion 4 is placed in the 0A and is exposed at the cutout portion 12 over the entire length thereof. Furthermore, the receiving unit 10
The short cylindrical connecting fitting 13 that surrounds and connects the joint portion 4 and the discharge pipe 6 is also exposed at the missing portion 12. It should be noted that the recess 10 is provided at the indoor end of the receiving portion 10.
A semicircular plate member 23 that closes A is provided. The plate member 23 prevents sand or the like from entering the recess 10A of the receiving portion 10 from the indoor side when the pipe fitting 11 is installed on the floor base surface A.

However, the pipe receiving metal fitting 11 is shown in FIGS.
As shown in FIG. 1, the recessed portion 10A of the receiving portion 10 precedes the bathtub 2, the hot water discharge pipe 5 connected to the bathtub 2, and the discharge pipe 6.
Facing upward, and the through hole 3 of the rising portion F1 of the cloth foundation F.
It is installed by penetrating the tube portion 9 into 0. In addition, the pipe bracket 11 is arranged with the lower half positioned below the level C of the floor base surface A and is gently inclined toward the outside B. After that, the discharge pipe 6 is inserted into the tubular portion 9 and the inner end thereof is terminated on the receiving portion 10. Further, as shown by the alternate long and short dash line in FIG. 2, the bathtub 2 to which the hot water discharge pipe 5 is attached in advance makes the bent portion 25 of the hot water discharge pipe 5 close to the plate member 23 at the end of the receiving portion 10 and the floor surface A. It is deferred via the foot stand 20.

Further, as shown in FIG. 3, the end of the joint 4 of the hot water discharge pipe 5 and the inner end of the discharge pipe 6 are connected to the joint 4 and the discharge pipe 6 by a missing portion 12 of the receiving portion 10. The upper half is exposed and the lower half is placed in the recess 12 so as to be connected by fixing the connection fitting 13 with an adhesive or the like, and the pipe portion 9 of the pipe fitting 11 exposed to the outside B is connected. The discharge pipe 6 is buried in the ground to form the drain pipe 7.

Since the joint portion 4 and the discharge pipe 6 are formed on the receiving portion 10 of the pipe receiving metal fitting 11 as described above, dust such as sand and gravel around the pipe is prevented from adhering to the adhesive coating portion, and the connection is achieved. Metal fittings 1
3 can be firmly fixed, water leakage from the connection part can be eliminated, and high quality and reliable connection is possible.

Further, since the hot water discharge pipe 5 and the discharge pipe 6 are introduced and connected to the pipe receiving metal fitting 11 which is arranged in advance, the alignment of the hot water discharge pipe 5 and the discharge pipe 6 can be facilitated and the piping work can be easily performed. Workability can be improved.

[0017]

As described above, the hot water discharge structure of the bath according to the present invention is
Since the drain pipe is formed by connecting the discharge pipe to the joint of the hot water discharge pipe at the receiving part of the pipe receiving metal fitting that has been arranged in advance, adhesion of sand, gravel, etc. can be prevented during connection work, and high quality Therefore, reliable piping construction can be achieved. Further, the discharge pipe can be introduced by being guided by the tubular portion of the pipe receiving fitting, and the construction efficiency can be improved.

[Brief description of drawings]

FIG. 1 is a perspective view showing an embodiment of a hot water discharge structure for a bath according to the present invention.

FIG. 2 is a sectional view showing an embodiment of the present invention.

FIG. 3 is a partially cutaway front view showing a connection state between a joint portion of a hot water discharge pipe and a discharge pipe.

FIG. 4 is a perspective view illustrating a pipe bracket.

FIG. 5 is a sectional view illustrating a conventional technique.

[Explanation of symbols]

 2 Bathtub 3 Hot water outlet 4 Joint part 5 Hot water discharge pipe 6 Discharge pipe 7 Drain pipe 9 Cylindrical part 10 Receiving part 11 Pipe receiving metal fitting 12 Missing part 13 Connecting metal fitting A Floor base surface B Outdoor

Claims (1)

[Claims] 1. A drainage pipe having a hot water discharge pipe connected to a hot water outlet of a bathtub and extending along a floor base surface, and a discharge pipe connected to the hot water outlet with a connecting fitting and extending outdoors. The floor base surface to be arranged is integrally provided with a receiving portion having a semicircular cross section having a notch extending in the longitudinal direction that includes the connecting metal fitting and exposes the joint portion in a tubular portion that extends outside and surrounds the discharge pipe. Hot water drainage structure of the bathtub with the piping bracket.