JP2000104297A - Underfloor piping and laying method for underfloor piping - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an underfloor piping extremely facilitated its laying and fixing works and prevented from obstructing other works. SOLUTION: A piping unit 10 provided with a prescribed-length major pipe 20 formed of a flexible pipe and prescribed-length branch pipes 30 formed of a flexible pipe and having the major pipe 20 connected to the branch pipes via branch parts 40 is arranged in a prescribed position in the underfloor ground. Fixing weights 60 are placed in appropriate positions in the piping unit 10 so as to fix the major pipe 20 and the branch pipes 30 to the ground.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to underfloor piping. More specifically, the present invention relates to an underfloor pipe serving as a water supply pipe and a method of laying a water pipe serving as an underfloor pipe.

[0002]

2. Description of the Related Art Conventionally, houses are provided with a water supply pipe for supplying tap water and a drain pipe for discharging sewage. As shown in FIG. 5 and FIG. 6, the water supply pipe includes a service pipe 80 buried in a site 120 from a water main 85 buried on a road 160 to a building 110, and a floor base of the building 110. The underfloor pipe 15 buried therein and the indoor pipe 90 connecting the underfloor pipe 15 to a water tap 95 provided in a kitchen or a bathroom in the building 110, etc. It is a pipe that guides tap water up to this point.

[0003] The drainage pipe is an indoor pipe 90 extending from a drainage port provided in a kitchen, a bathroom, or the like to a location below a floor of a building 110.
And underfloor piping 15 buried underground under the floor of the building 110
And a lead-in pipe 80 that connects the underfloor pipe 15 to the sewer main pipe in a buried state, and is a pipe for guiding sewage from the drain port to the sewer main pipe. Incidentally, today, a water heater 140 for supplying hot water is often provided indoors or outdoors. As shown in FIG. 5, the hot water supply pipe 150, which is a pipe for guiding hot water from the water heater 140 to a water tap 95 provided in a kitchen, a bathroom, or the like, is also connected to the underfloor pipe 15 and the indoor pipe 90 of the water supply pipe. May be laid together.

Hereinafter, the work of laying a water supply pipe will be briefly described. Conventionally, the work of laying a water supply pipe as the underfloor pipe 15 is performed by combining rigid pipes cut to a predetermined length and constructing a building 110.
The base sleeve 130 is buried under the ground so as to penetrate under the floor, and rises vertically upward at a predetermined position. In other words, according to the construction drawings,
A groove is formed at a predetermined position in the groove, and a rigid pipe made of metal or vinyl chloride, which is a rigid tubular pipe cut to a predetermined length inside the groove, is formed into a “T” shape or “L”. The lead-in pipe 80 is arranged near the outer peripheral foundation of the building 110 while being combined using a joint member 70 having an appropriate shape such as a "" shape.
Similarly, a groove is formed inside the outer peripheral foundation of the building 110 under the floor of the building 110, and a rigid tubular pipe made of metal or vinyl chloride which is cut to a predetermined length inside the groove is made of metal or vinyl chloride. Are combined and arranged by using a joint member 70 having an appropriate shape such as a “T” shape or an “L” shape, and one end of the combined rigid tube is connected to an end of a drawing pipe 80 from a water main 85. And the other end is raised vertically upward near a predetermined location connected to the indoor pipe 90. Then, the portion arranged inside the groove is buried.

The indoor piping connected to the underfloor piping 15
Regarding 90, not only when a rigid pipe made of metal or vinyl chloride is used, but also a pipe having flexibility may be used as a piping unit (for example, Japanese Patent No. 260680).
No. 8). The piping unit used for this indoor piping 90 is
It is mainly used as an indoor pipe 90 of a water supply pipe of an apartment house, and includes a main pipe formed by a flexible pipe, and a plurality of branch pipes formed by the flexible pipe. Are connected via a joint member 70.

[0006] The method of laying the piping unit is as follows.
The piping unit in which the main pipe and the branch pipes are bundled is carried into the construction site, and the ends of the main pipe and the respective branch pipes are connected to the water tap 95 or the like. The flexible tube is a flexible tubular pipe formed by forming elastic plastic or synthetic rubber into a tubular shape, or covering an annular or spiral steel wire with elastic plastic or synthetic rubber or the like. In addition, there is a tube formed in a tubular shape having corrugations or spiral irregularities in the tube axis direction.

[0007]

As described above, in the conventional work of laying a water supply pipe, which is used as underfloor piping, a rigid pipe having a predetermined length is combined and buried, and a rigid pipe having a predetermined length is buried. The work of combining pipes with a plurality of appropriately shaped joint members and the work of forming a groove in the premises and burying the combined rigid pipe inside the groove are complicated.

[0008] It has been proposed to use a flexible pipe which is easier to dispose than a rigid pipe when installing a pipe below the floor as a water supply pipe. However, when a flexible pipe is used as a pipe below the floor, it is used as a pipe below the floor. Until the end of the flexible tube is connected and fixed to the end of the indoor piping, the flexible tube bends, etc.
There is a possibility that other operations, such as floor panel installation, may be obstructed.

The installation work is easy, and
There has been a demand for a water supply pipe as an underfloor pipe which does not hinder other operations.

[0010]

Therefore, the underfloor pipe (15) according to the first aspect of the present invention comprises a main pipe (20) having a predetermined length formed by a flexible pipe, and a flexible pipe. A pipe unit (10) including a branch pipe (30) having a predetermined length formed by the main pipe (20) and the branch pipe (30) connected via a branch portion (40), The fixing weight (60) is disposed at a predetermined position on the ground below the floor of the building (110), and is fixed at an appropriate position of the piping unit (10).
Is mounted, and the main pipe (20) and the branch pipe (30) are fixed to the ground.

[0011] In this way, by providing the underfloor pipe (15) in which the fixing weight (60) is placed at an appropriate position of the pipe unit (10) and fixed on the ground, the laying and fixing work is extremely performed. The underfloor piping (15) that is easy and does not hinder other operations can be provided. In the underfloor pipe (15) according to claim 2 of the present invention, the place where the fixing weight (60) is placed is a branch part (40), a main pipe (20) and a branch pipe (30). At or near the bent portion (50).

As described above, the branch part (40) of the piping unit (10) and the bent part (50) of the main pipe (20) and the branch pipe (30).
Alternatively, by using the underfloor pipe (15) in which the fixing weight (60) is placed and fixed in the vicinity thereof, the laying operation is easy and the main pipe (20) formed by the flexible pipe and The branch pipe (30) can be reliably fixed in a predetermined position.

The underfloor piping (15) according to the third aspect of the present invention is characterized in that the fixing weight (60) is formed of a bag containing sand or soil.
In this way, by using the underfloor pipe (15) formed of the bag for storing sand or soil, the fixing weight (60) is easy to lay and the handling of the fixing weight (60) is easy. Easy underfloor piping (15) can be provided.

Further, the underfloor pipe (15) according to claim 4 of the present invention is a main pipe (20) having a predetermined length formed by a flexible tube, and a predetermined pipe formed by the flexible tube. A pipe unit (10) provided with a branch pipe (30) having a length of, and the main pipe (20) and the branch pipe (30) are connected via a branch part (40), And a suitable part of the piping unit (10) is fixed to the ground by a fixing bracket (65).

As described above, by arranging the appropriate portion of the piping unit (10) with the underfloor piping (15) fixed to the ground by the fixing bracket (65), the laying and fixing work is easy, and other piping and fixing work are easy. Underfloor piping that does not interfere with work (15)
It can be. In addition, in the underfloor pipe (15) according to claim 5 of the present invention, the part fixed by the fixing bracket (65) is a part of the branch part (40) and the main pipe (20) and the branch pipe (30). It is characterized by being at or near the bent portion (50).

As described above, the branch part (40) of the piping unit (10) and the bent part (50) of the main pipe (20) and the branch pipe (30).
Alternatively, by using an underfloor pipe (15) whose vicinity is fixed to the ground by a fixing bracket (65), the laying operation is easy, and the main pipe (20) or the branch pipe formed by a flexible pipe is provided. (30) can be reliably fixed at a predetermined position.

The underfloor pipe (15) according to claim 6 of the present invention comprises a main pipe (20) having a predetermined length formed by a flexible pipe, and a predetermined pipe formed by the flexible pipe. The pipe unit (10), which has a branch pipe (30) of length, and the main pipe (20) and the branch pipe (30) are connected via a branch (40), is laid on the ground under the floor. That the main pipe (20) and the branch pipe (30) are fixed by being placed at a predetermined position on the waterproof sheet, and covered with sand or soil on the piping unit (10). Features.

As described above, the underfloor piping (15) in which the piping unit (10) is arranged on the waterproof sheet and is covered with sand or soil and fixed is provided.
Underfloor piping that is easy to lay and is not easily affected by ambient temperature or ground temperature, etc.
It can be. Furthermore, in the method of laying underfloor piping (15) according to the present invention, the main pipe (20) having a predetermined length formed by a flexible tube, and the predetermined pipe formed by the flexible tube. A pipe unit (10) having a branch pipe (30) having a length of, and the main pipe (20) and the branch pipe (30) being connected via a branch part (40) in advance,
The piping unit (10) is carried into the construction site in a state where the main pipe (20) and the branch pipe (30) are bundled, and before the installation of the floor panel, the piping unit (1
0) is placed at a predetermined position on the ground below the floor of the building (110), and a fixing weight (60) is placed at an appropriate place of the piping unit (10), and the main pipe (20) and Branch pipe (3
0) is fixed.

Thus, the piping unit (10) assembled in advance is carried into the construction site, and the piping unit (10) is placed at a predetermined position on the ground before the installation of the floor panel is started. At the same time, a fixing weight (60) is placed at an appropriate place of the piping unit (10), and the piping unit (10) is fixed to the ground, so that the laying operation is easy and other operations can be performed. It can be a method of laying underfloor piping (15) that does not become an obstacle.

The method of laying the underfloor piping (15) according to claim 8 of the present invention is characterized in that a bag containing sand or soil is used as the fixing weight (60).
As described above, by using a bag containing sand or soil as the fixing weight (60), the handling of the fixing weight (60) can be facilitated, and therefore, the underfloor pipe (15) that can be laid more easily. Laying method.

According to the laying method of the underfloor pipe (15) according to the ninth aspect of the present invention, the main pipe (20) having a predetermined length formed by the flexible pipe and the flexible pipe are formed. A pipe unit (10) having a branch pipe (30) having a predetermined length, and the main pipe (20) and the branch pipe (30) being connected via a branch part (40) is assembled in advance. The piping unit (10) is carried into the construction site in a state where the main pipe (20) and the branch pipe (30) are bundled, and before the installation of the floor panel, the piping unit (10) is It is arranged at a predetermined position on the ground below the floor of the building (110), and an appropriate portion of the piping unit (10) is fixed to the ground by a fixing bracket (65).

In this way, before the piping unit (10) assembled in advance is carried into the construction site, and before the installation of the floor panel is started, the piping unit (10) is moved to a predetermined position on the floor base surface. And the piping unit (1
By fixing the appropriate part of (0) to the ground using the fixing bracket (65) instead of the fixing weight (60), the underfloor piping that facilitates the laying work and does not hinder other work The laying method of (15) can be adopted.

Furthermore, the method of laying underfloor piping (15) according to claim 10 of the present invention is a method of fixing a piping unit (10) using a fixing weight (60) or a fixing bracket (65). But the branch (40) and the main pipe (20) and the branch pipe (3
0) at or near the bent portion (50). As described above, the branching part (40) of the piping unit (10) and the bent part (50) of the main pipe (20) and the branch pipe (30) or the vicinity thereof are fixed to the fixing weight (60) or the fixing metal fitting (65). By fixing to the ground by using, the laying work is easy and it is possible to securely fix to a required place.

Further, in the method of laying the underfloor pipe (15) according to the present invention, the main pipe (20) having a predetermined length formed by a flexible pipe and the flexible pipe are formed. A pipe unit (10) having a branch pipe (30) having a predetermined length, and the main pipe (20) and the branch pipe (30) being connected via a branch part (40) is assembled in advance. The piping unit (10) is carried into the construction site in a state where the main pipe (20) and the branch pipe (30) are bundled, and before the installation of the floor panel, the piping unit (10) is The main pipe (20) and the branch pipe (30) are placed at a predetermined position on the waterproof sheet laid on the floor base of the building (110), and are covered with sand or soil on the piping unit (10). Is fixed.

As described above, the pipe unit (10) which has been assembled in advance is carried into the construction site, and before the installation of the floor panel is started, the pipe unit (10) is placed on the floor base surface. The underfloor pipe (15) which is arranged at a predetermined position above and is fixed by covering the pipe unit (10) with sand or soil, thereby facilitating the laying work and not obstructing other works. In addition, a method for laying underfloor piping (15) which is hardly affected by ambient temperature, ground temperature, and the like and has excellent heat insulation properties can be provided.

[0026]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A first embodiment of an underfloor pipe 15 and a method of laying an underfloor pipe 15 according to the present invention will be described with reference to FIGS.
It will be described based on. FIG. 1 shows the underfloor piping 15 according to the present invention.
FIG. 2 is a plan view showing an outline of the underfloor piping 15 according to the present invention.
FIG. 3 is a perspective view showing a main part of the underfloor pipe 15 according to the present invention.

The underfloor pipe 15 is a service pipe 80 that is drawn from the water main 85 to the building while being buried in the site.
And a piping unit 10 that is disposed under the floor of a building and is used as a underfloor pipe 15 of a water supply pipe, and a plurality of flexible pipes are connected via a branch portion 40, and a pipe. A fixing weight 60 for fixing the unit 10 is provided, and the piping unit 10 is disposed at a predetermined position on the ground under the floor of the lowest layer of the building, and at an appropriate position of the piping unit 10 The fixing weight 60 is placed and fixed.

The water supply pipe is a pipe for supplying tap water. The water supply pipe is provided from a water main 85 to a building under a buried state in a site, and a water supply pipe 80 is provided under the lowest floor of the building. An underfloor pipe 15 located therein and an indoor pipe 90 for connecting the underfloor pipe 15 to a water tap 95 or the like provided in a kitchen, a bathroom, or the like.
Thus, the pipe is configured to guide the tap water from the water main 85 to the water faucet 95 and the like.

Hereinafter, the first embodiment of the underfloor piping 15 according to the present invention will be described in detail. The piping unit 10 includes a main pipe 20 having a predetermined length formed by a flexible pipe, and a branch pipe 30 having a predetermined length formed by a flexible pipe. Are connected via a joint member 70 to form the branch portion 40.

The flexible tube is a flexible tubular pipe formed by forming an elastic plastic or the like into a tubular shape, or as shown in FIG. Or the like, and formed into a tubular shape having corrugations or spiral irregularities in the tube axis direction. The main pipe 20 is connected at one end to an end of a drawing pipe 80 that is retracted from the water main 85 to a position near an outer peripheral base sleeve that is an outer peripheral portion of the basic sleeve. The main pipe 20 is formed at a predetermined position at a predetermined position, and a plurality of branch portions 40 are formed.

The branch pipe 30 has one end connected to a branch portion.
It is connected to the main pipe 20 through 40, and the other end is connected to the end of an indoor pipe 90 connected to a water tap 95 or the like provided in a kitchen, a bathroom, or the like, and is similar to the main pipe 20. Is formed to a predetermined length according to the construction drawing. The branch portion 40 is a portion connecting the main pipe 20 and the branch pipe 30. The branch portion 40 has a joint member having an appropriate shape such as a “T” shape, a “Y” shape, or a “ten” shape. 70 is used.

The fixing weight 60 is placed at an appropriate place of the piping unit 10 arranged at a predetermined position,
For fixing the piping unit 10, for example,
A fixing weight 60 having a semi-cylindrical shape as shown in FIG. 3 may be used, and although not shown, a fixing weight 60 formed of a bag containing sand or soil may be used.

The underfloor piping according to the first embodiment will be described below.
15 laying methods will be described in detail. The method of laying the underfloor piping 15 is based on the piping unit 10 previously assembled in the factory.
Is transported to a construction site in a state where the main pipe 20 and the branch pipe 30 are bundled, and the piping unit 10 is arranged at a predetermined position on the ground, and the fixing weight 60 is provided at an appropriate position of the piping unit 10. Is placed and fixed.

That is, the work of arranging the underfloor piping 15 is performed after the construction of the foundation sleeve of the building is completed and before the installation of the floor panel or the like is started. The branch pipes 30 are arranged at predetermined positions on the ground below the lowest floor of the building according to the construction drawing. The work of arranging the main pipe 20 is performed by stretching or main part of the main pipe 20 formed by a flexible pipe, and in accordance with the construction drawing, a predetermined level on the ground which is below the lowermost floor of the building according to the construction drawing. It is a thing that crawls the position.

In the same manner as the operation of arranging the main tube 20, the operation of arranging the branch tube 30 is the same as the operation of arranging the main tube 20.
While extending or bending the 30 as appropriate, a predetermined position on the ground below the floor of the lowest layer of the building is crawled according to the construction drawing. Then, as shown in FIG. 3, the fixing weight 60 is attached to an appropriate portion such as the branch portion 40 of the piping unit 10 disposed at a predetermined position, the bent portion 50 of the main pipe 20 and the branch pipe 30 or the vicinity thereof. Place, main pipe 20
By fixing the branch pipe 30, the piping unit 10 is fixed.

The bent portion 50 refers to the main pipe 20 or the branch pipe 30.
Means a portion where the main pipe 20 and the branch pipe 30 are bent when they are arranged at predetermined positions. Further, one end of the main pipe 20 is connected to the water main 85.
To the building are connected in a watertight manner to the end of a drop-in pipe 80 that is pulled in a state of being buried in the premises. In addition, this retraction pipe 80
Is formed by combining rigid pipes in the same manner as in the prior art, and has an end on the building side protruding above the ground near the foundation sleeve.

For the watertight connection between the main pipe 20 and the lead-in pipe 80, for example, a male screw is formed at the building-side end of the lead-in pipe 80, and the male pipe is connected to one end of the main pipe 20. A joint member 70 in which a female screw corresponding to the screw is formed is provided, and a male screw formed in the building-side end of the lead-in tube 80 and a female screw formed in the joint member 70 are provided. This can be done by screwing the screws.

Further, one end of each branch pipe 30 is located near the place where the end of the indoor pipe 90 is provided, based on the construction drawing. After the arrangement and fixing of the piping unit 10 are completed, the floor panel is installed, and the indoor pipe 90 is laid. Note that the indoor pipe 90 is often formed by combining rigid pipes as in the past, and one end thereof is connected to a water tap 95 provided in a kitchen, a bathroom, or the like, and the other end is located under the floor. It is connected to the end of the pipe 15 in a watertight manner.

It is to be noted that one end of the main pipe 20 may be arranged at the position of the water heater 140 and arranged on the ground such that the end of each branch pipe 30 is arranged near the arrangement of the water tap 95 for hot and cold water. . And
The watertight connection between the branch pipe 30 and the indoor pipe 90 is, for example, similar to the connection between the main pipe 20 and the inlet pipe 80 described above.
A male screw is formed at one end of the branch pipe 30. At one end of the branch pipe 30, a joint member 70 having a female screw corresponding to the male screw is provided. This can be performed by screwing a male screw formed on the joint member 70 with a female screw formed on the joint member 70.

As described above, by installing the fixing weight 60 at an appropriate position of the piping unit 10 made of a flexible tube that has been assembled in advance, the underfloor piping 15 for fixing the weight on the ground is used for laying and fixing. The underfloor piping 15 is extremely easy to work. Further, when the fixing weight 60 is placed on the branch portion 40, the bent portion 50 of the main pipe 20 and the branch pipe 30, or the vicinity thereof, the laying work is easy, and further,
The underfloor piping 15 in which the flexible main pipe 20 and the branch pipe 30 are securely fixed can be provided.

When a bag containing sand or soil is used as the fixing weight 60, soil on the ground at the construction site can be used, and a sandbag generally used at the construction site can be used. Can be diverted. Therefore,
The laying work is easy, and the underfloor piping 15 that can easily handle the fixing weight 60 can be obtained.

In addition, since the main pipe 20 and the branch pipe 30 are formed of flexible pipes, the number of connection portions using the joint member 70 can be reduced. Therefore, the laying work is easy, and the underfloor piping 15 with low risk of water leakage can be obtained. In addition, the underfloor piping 15 fixed on the ground, that is, the underfloor piping 15 not buried in the ground, facilitates laying work and facilitates maintenance inspection such as water leakage inspection after laying. The underfloor piping 15 can be used.

Further, the arrangement and fixing of the piping unit 10 are as follows.
By performing before the installation of the floor panel, the bent or curled main pipe 20 or branch pipe 30 can be used as a method of laying the underfloor pipe 15 which does not hinder other work. It is. In the above embodiment,
The predetermined position where the piping unit 10 is arranged is on the ground inside the foundation sleeve forming the outer periphery of the building, but in addition to the case where the ground is soil or sand, the ground may be covered with concrete .

The pipe unit 10 on which the fixing weight 60 is to be placed is located at or near the branch portion 40, the bent portion 50 of the main pipe 20 and the branch pipe 30, or the vicinity thereof. The piping unit 10 may be fixed by placing a fixing weight 60 on the straightened part, and the branch part 40 and the bent part 50 may be fixed.
Or, it is not limited only to the vicinity thereof. The connection between the main pipe 20 and the inlet pipe 80 and the connection between the branch pipe 30 and the indoor pipe 90 are as follows:
The male screw formed at the end of the inlet pipe 80 or the indoor pipe 90 is screwed with the female screw formed at the joint member 70.
Various forms are provided for 70, and the present invention is not limited to the case where the joint member 70 connected by screwing the screws is used.
It is not limited to having 70.

Next, a second embodiment of the underfloor piping 15 according to the present invention will be described with reference to FIG. The underfloor piping 15, like the underfloor piping 15 shown in the first embodiment, includes a piping unit 10 in which a plurality of flexible pipes are connected via a branch portion 40, Instead of the fixing metal fittings 65 shown in the embodiment, a fixing metal fitting 65 for fixing the piping unit 10 is provided, and the piping unit 10 is located at a predetermined position on the ground 100 which is below the lowermost floor of the building. And an appropriate portion of the piping unit 10 is fixed by the fixing bracket 65.

The pipe unit 10 has a main pipe 20 of a predetermined length formed by a flexible tube and a predetermined pipe formed by a flexible tube, as in the first embodiment. A branch pipe 40 having a length is provided, and the main pipe 20 and the branch pipe 30 are connected via a joint member 70 to form a branch portion 40. Further, the fixing bracket 65 is for fixing an appropriate portion of the piping unit 10 arranged at a predetermined position, and as shown in FIG. 4A, bends a steel wire into a “U” shape. It is formed.

The underfloor piping in the second embodiment will be described below.
15 laying methods will be described in detail. The method of laying the underfloor piping 15 is based on the piping unit 10 previously assembled in the factory.
Is transported to the construction site in a state where the main pipe 20 and the branch pipe 30 are bundled, and the piping unit 10 is arranged at a predetermined position on the ground 100, and an appropriate part of the piping unit 10 is fixed to the fixing bracket. It is fixed on the ground 100 by 65.

That is, the work of arranging the piping unit 10 is as follows.
This is performed after the construction of the foundation sleeve of the building is completed and before the installation of the floor panel and the like is started, and is the same as the work described in the first embodiment. Then, the branch portion 40 of the piping unit 10 arranged at a predetermined position, the main pipe 20 and the branch pipe 30
An appropriate portion such as the vicinity of the bent portion 50 is fixed by the fixing bracket 65. Then, as shown in FIG. 4B, the pipe unit 10 is fixed on the ground 100 by the fixing bracket 65 by connecting the main pipe 20 and the branch pipe 30 to a steel wire bent in a “U” shape.
And the other end of the steel wire is inserted into the ground.

As described above, a suitable part of the piping unit 10 made of a flexible tube, which has been assembled in advance, is fixed to the ground 10 by the fixing bracket 65 formed by bending a steel wire into a “U” shape.
By fixing on the upper side, the underfloor piping 15 that can be easily laid and fixed can be obtained. Further, when the appropriate portion to be fixed by the fixing bracket 65 is the branch portion 40, the bent portion 50 of the main pipe 20 and the branch pipe 30, or the vicinity thereof, the laying operation is easy and the flexible pipe is further provided. The underfloor piping 15 in which the main pipe 20 and the branch pipe 30 made of stainless steel are securely fixed can be obtained.

Further, since the main pipe 20 and the branch pipe 30 are formed of flexible pipes, the number of connection portions using the joint member 70 can be reduced. Therefore, the laying work is easy, and the underfloor piping 15 with low risk of water leakage can be obtained. In addition, the underfloor piping 15 fixed on the ground 100, that is, the underfloor piping 15 not buried underground
In this way, laying work is easy and underfloor piping 15 that facilitates maintenance and inspection such as water leakage inspection after laying
It can be.

The arrangement and fixation of the piping unit 10
By performing before the installation of the floor panel, the bent or curled main pipe 20 or branch pipe 30 can be used as a method of laying the underfloor pipe 15 which does not hinder other work. It is. Next, a third embodiment of the underfloor piping 15 according to the present invention will be described. The underfloor piping 15, the piping unit 10 is disposed at a predetermined position on a waterproof sheet laid on the ground below the lowermost floor of the building, and on the piping unit 10, sand or It is covered with soil.

The piping unit 10 is formed by a flexible main tube 20 having a predetermined length and a flexible tube, similarly to the first and second embodiments. Branch pipe 30 having a predetermined length, and the main pipe 20 and the branch pipe 30 are connected via a joint member 70 to form a branch portion.
40 are formed. A vinyl sheet is mainly used as the waterproof sheet.

Hereinafter, the underfloor piping according to the third embodiment will be described.
15 laying methods will be described in detail. The method of laying the underfloor piping 15 is based on the piping unit 10 previously assembled in the factory.
Is carried out to the construction site in a state where the main pipe 20 and the branch pipe 30 are bundled, as in the first and second embodiments. The arrangement and fixing work of the piping unit 10 is performed after the construction of the foundation sleeve of the building is completed and before the installation of the floor panel or the like is started, and the ground which is under the floor of the lowest layer of the building. By laying a waterproof sheet thereon, and further arranging the piping unit 10 at a predetermined position on the waterproof sheet and putting sand or soil on the piping unit 10 arranged at a predetermined position, And branch pipe 30,
And the branch portion 40.

It is preferable that the work of covering with sand or soil is performed in accordance with the progress of the work of arranging the piping unit 10 or immediately after checking the arrangement after the work of arranging. As described above, the piping unit 10 is disposed on the waterproof sheet, and the underfloor piping 15 is fixed on the piping unit 10 by covering it with sand or soil. You can do it.

Further, the moisture from the ground is blocked by the waterproof sheet, and the main pipe 20 and the branch pipe 30 are covered with sand or soil. Underfloor piping with excellent heat retention
It can be. In addition, before starting installation of the floor panel, by fixing the piping unit 10 with sand or soil, the main pipe 20 and the branch pipe 30 are prevented from bending or curling, and other This can be a method of laying the underfloor piping 15 that does not hinder the work.

[0056]

As described above, according to the first aspect of the present invention, a piping unit having a flexible main pipe and a flexible pipe branch pipe is arranged at a predetermined position on the ground. The underfloor piping is characterized in that a fixing weight is placed at an appropriate place of the piping unit and fixed on the ground.

Accordingly, it is possible to provide an underfloor pipe which is extremely easy to lay and fix. Further, the invention described in claim 2 is the underfloor piping, wherein the mounting position of the fixing weight is at or near a branch portion, a bent portion of the main pipe and the branch pipe, or the vicinity thereof. Therefore, it is possible to provide an underfloor pipe that is easy to lay and that is securely fixed.

The invention according to claim 3 is the underfloor pipe, wherein the fixing weight is formed by a bag containing sand or soil. Accordingly, the underfloor piping which is easy to lay and can be easily handled can be provided. Further, according to the invention described in claim 4, a piping unit having a main pipe made of a flexible tube and a branch pipe made of a flexible tube is arranged at a predetermined position on the ground. The underfloor pipe is characterized in that an appropriate portion is fixed on the ground by a fixing bracket.

Accordingly, it is possible to provide an underfloor pipe which can be easily laid. Further, the invention described in claim 5 is an underfloor pipe characterized in that the fixing portion by the fixing bracket is a branch portion and a bent portion of the main pipe and the branch pipe or the vicinity thereof. Therefore, it is possible to provide an underfloor pipe that is easy to lay and that is securely fixed.

According to a sixth aspect of the present invention, there is provided a piping unit having a flexible pipe main pipe and a flexible pipe branch pipe at a predetermined position on a waterproof sheet laid on the ground. An underfloor pipe, which is arranged, and has a main pipe and a branch pipe fixed by covering the pipe unit with sand or soil. Accordingly, it is possible to provide an underfloor pipe which is easy to lay and has excellent heat insulation.

According to a seventh aspect of the present invention, a piping unit having a flexible pipe main pipe and a flexible pipe branch pipe is assembled in advance, and the piping unit is bundled with the main pipe and the branch pipe. Before starting installation of the floor panel, the piping unit is placed at a predetermined position on the ground, and a fixing weight is placed at an appropriate position of the piping unit before starting installation of the floor panel. And fixing a branch pipe.

Accordingly, a method for laying underfloor piping that can be easily laid and does not hinder other operations can be provided. The invention according to claim 8 of the present invention is a method of laying underfloor piping, wherein the fixing weight is formed by a bag containing sand or soil.

Accordingly, a method of laying underfloor piping that is easy to lay and easy to handle can be provided. According to the ninth aspect of the present invention, a piping unit provided with a main pipe made of a flexible pipe and a branch pipe made of a flexible pipe is assembled in advance, and the piping unit is connected to the main pipe and the branch pipe. Before carrying the floor panel in a bundled state, the piping unit is placed at a predetermined position on the ground before installation of the floor panel, and an appropriate portion of the piping unit is fixed on the ground by a fixing bracket. This is a method of laying underfloor piping.

Accordingly, a method of laying underfloor piping that can be easily laid and does not hinder other works can be provided. In the invention according to claim 10 of the present invention, the fixing portion by the fixing weight or the fixing bracket,
This is a method for laying underfloor piping, which is at or near a branch portion and a bent portion of a main pipe and a branch pipe.

Accordingly, a method of laying the underfloor piping, in which the laying work is easy and the fixing is reliable, can be provided. In the invention according to claim 10 of the present invention, a piping unit having a main pipe made of a flexible pipe and a branch pipe made of a flexible pipe is previously assembled, and the piping unit is connected to the main pipe and the branch pipe. Before carrying out the installation of the floor panel in a bundled state and before starting the installation of the floor panel, the piping unit is placed at a predetermined position on a waterproof sheet laid on the ground, and sand or soil is placed on the piping unit. This is a method for laying underfloor piping, which covers and fixes a main pipe and a branch pipe.

Therefore, the laying operation can be easily performed, and a method of laying underfloor piping that does not hinder other operations can be achieved. Further, a method of laying underfloor piping having excellent heat insulation can be achieved.

[Brief description of the drawings]

FIG. 1 is a plan view schematically showing an underfloor pipe according to the present invention.

FIG. 2 is a partially enlarged view of a flexible tube used for underfloor piping according to the present invention.

FIG. 3 is a perspective view showing a main part of the underfloor piping according to the present invention.

FIG. 4 is a side sectional view showing a main part of the underfloor piping according to the present invention.

FIG. 5 is a plan view showing an outline of a conventional water supply pipe.

FIG. 6 is a side sectional view showing an outline of a conventional water supply pipe.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 Piping unit 15 Underfloor piping 20 Main pipe 30 Branch pipe 40 Branch part 50 Bend part 60 Fixing weight 65 Fixing metal fitting 70 Joint member 80 Retraction pipe 85 Water supply main pipe 90 Indoor piping 95 Water tap 100 Ground 110 Building 120 Site 130 Foundation Sleeve 140 water heater 150 hot water pipe 160 road

Claims (11)

[Claims] 1. A main pipe having a predetermined length formed by a flexible tube and a branch pipe having a predetermined length formed by a flexible tube, wherein the main pipe and the branch pipe are connected via a branch portion. The connected piping units are arranged at predetermined positions on the floor base surface, and fixing weights are placed at appropriate places of the piping units, and the main pipe and the branch pipes are fixed to the ground. Under-floor piping characterized by the fact that: 2. The place where the fixing weight is placed,
The underfloor pipe according to claim 1, wherein the pipe is located at or near a branch portion and a bent portion of the main pipe and the branch pipe. 3. The underfloor pipe according to claim 1, wherein the fixing weight is formed by a bag containing sand or soil. 4. A main pipe having a predetermined length formed by a flexible tube, and a branch pipe having a predetermined length formed by a flexible tube, wherein the main pipe and the branch pipe are connected via a branch portion. A piping unit connected at a predetermined position on a floor base surface, and an appropriate portion of the piping unit is fixed to the ground by a fixing bracket. 5. The underfloor pipe according to claim 4, wherein the portion fixed by the fixing bracket is at or near a bent portion and a bent portion of the main pipe and the branch pipe. 6. A main pipe having a predetermined length formed by a flexible tube, and a branch pipe having a predetermined length formed by a flexible tube, wherein the main pipe and the branch pipe are connected via a branch portion. The connected piping unit is arranged at a predetermined position on the waterproof sheet laid on the floor base surface, and the main pipe and the branch pipe are fixed by covering the piping unit with sand or soil. Under-floor piping characterized by being made. 7. A main pipe having a predetermined length formed by a flexible tube, and a branch pipe having a predetermined length formed by a flexible tube, wherein the main pipe and the branch pipe are connected via a branch portion. The piping unit connected in advance is assembled, the piping unit is carried into the construction site in a state where the main pipe and the branch pipe are bundled, and before the installation of the floor panel, the piping unit is installed at the construction site. A method of laying under-floor piping, wherein the under-floor piping is arranged at a predetermined position on a floor base surface, and a fixing weight is placed at an appropriate position of the piping unit to fix the main pipe and the branch pipe to the ground. 8. The method according to claim 7, wherein the fixing weight is a bag containing sand or soil. 9. A main pipe having a predetermined length formed by a flexible tube, and a branch pipe having a predetermined length formed by a flexible tube, wherein the main pipe and the branch pipe are connected via a branch portion. The piping unit connected in advance is assembled, the piping unit is carried into the construction site in a state where the main pipe and the branch pipe are bundled, and before the installation of the floor panel, the piping unit is installed at the construction site. A method of laying underfloor piping, wherein the underfloor piping is arranged at a predetermined position on a floor base surface and an appropriate portion of the piping unit is fixed to the ground by a fixing bracket. 10. The fixing device according to claim 7, wherein the portion where the piping unit is fixed by the fixing weight or the fixing metal is a branch portion, a bent portion of the main pipe and the branch pipe, or a vicinity thereof. The method of laying underfloor piping described in Crab. 11. A main pipe having a predetermined length formed by a flexible tube and a branch pipe having a predetermined length formed by a flexible tube, wherein the main pipe and the branch pipe are connected via a branch portion. The piping unit connected in advance is assembled, the piping unit is carried into the construction site in a state where the main pipe and the branch pipe are bundled, and before the installation of the floor panel, the piping unit is installed at the construction site. A method of laying underfloor piping, comprising: arranging a main pipe and a branch pipe by placing it at a predetermined position on a waterproof sheet laid on an underfloor surface and covering the piping unit with sand or soil.