JP2004084401A - Cold/hot water supply piping unit and installation method for the same - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a cold/hot water supply piping unit that enables easy and stable installation in one place in a ceiling or the like, and ensures excellent water flowability and workability, and an installation method therefor. <P>SOLUTION: Pipe materials are annularly formed into a cold water supply branch pipe 2 with one or more branch pipes connected, and a hot water supply branch pipe 3 with one or more branch pipes connected. A support member 6 with a mounting portion 7 to a mounting position fixes the cold water supply branch pipe 2 and the hot water supply branch pipe 3 integrally in a superposed or concentric arrangement. The support member 6 is formed in X or substantial Y form, and the mounting portion 7 is formed in the center thereof. <P>COPYRIGHT: (C)2004,JPO

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
TECHNICAL FIELD The present invention relates to a water supply / hot water supply piping unit for piping inside dwelling units such as an apartment house, and a construction method thereof.
[0002]
[Prior art]
Conventionally, a branching method or a header method has generally been adopted as a water supply / hot water supply pipe of this kind of dwelling unit.
However, in the case of the branching method, there is a risk of water leakage from the joint, and it is difficult to detect when water leaks because it is usually a floor pipe, and furthermore, it is only after rain curing of the building frame under construction has been carried out There were problems such as the inability to lay floor piping.
[0003]
In addition, in the case of the header method, there are problems that the total pipe length is long, and that not only is there a restriction on the installation position of the water supply and hot water supply headers, but also that a space for inspection and a construction space are required.
Further, in both cases of the branching method and the header method, several types of pipe sizes are required, and therefore, there are various problems such as an increase in types of joints.
[0004]
In order to solve such a problem, Japanese Patent Application Laid-Open No. Hei 10-88631 discloses a loop pipe portion formed of a pipe having flexibility and having a water supply point or a hot water supply point in a part of the ring. A prefabricated water supply comprising a flexible branch pipe section branched from the loop pipe section and connected to each faucet, and the loop pipe section and each branch pipe section are joined by heat fusion via a joint. And hot water supply piping systems have been proposed.
[0005]
[Problems to be solved by the invention]
The above-mentioned water supply and hot water supply piping systems are excellent in on-site workability, and have the feature that the number of parts can be reduced and the cost can be reduced.However, the water supply loop piping section and the hot water supply loop pipe section are separately provided. Since it had to be provided, the construction was not only troublesome, but also required a large installation space. In addition, the loop pipe section is provided with a plurality of mounting brackets for holding the pipe material fixed to a ceiling, a wall, or the like, but is unstable and troublesome because of its flexibility.
[0006]
The present invention has been made in order to solve the above-described problems, and a branch pipe portion obtained by integrating a water supply branch pipe and a hot water supply branch pipe can be easily and stably mounted at one position of a mounting position. It is an object of the present invention to provide a water supply / hot water supply piping unit having excellent water flowability and workability, and a construction method thereof.
[0007]
[Means for Solving the Problems]
(1) A water supply / hot water supply pipe unit according to the present invention is formed in a ring shape by a pipe material, and is provided with one or more branch pipes connected to one or more branch pipes and one or more branch pipes connected to a hot water branch. The water supply branch pipe and the hot water supply branch pipe are vertically and concentrically arranged and integrally fixed by a support member having a pipe and a mounting portion at a mounting position.
[0008]
(2) The water supply / hot water supply pipe unit according to the present invention is formed in a ring shape by a flexible pipe material, and is connected to a water supply source, a branch pipe connected to equipment in a dwelling unit, and a hot water supply pipe. Source, having a hot water supply branch pipe connected to a branch pipe to be installed in the dwelling unit, the water supply branch pipe and the hot water supply branch pipe are arranged vertically or concentrically by a support member having a mounting portion to a mounting position. They are fixed together.
[0009]
(3) The support member of (1) or (2) is formed in a cross shape or a substantially Y-shape, and a mounting portion is provided at the center thereof.
[0010]
(4) Further, the method for constructing the water / hot water supply piping unit according to the present invention is such that the water / hot water supply piping unit according to any one of the above (1) to (3) made in a factory or the like is attached to a mounting position by a support member. It has a step of attaching and a step of extending the branch pipe and piping it in a predetermined position.
[0011]
(5) In the water supply / hot water supply piping unit manufactured in the factory or the like of the above (4), the branch pipes are bundled around the water supply branch pipe and the hot water supply branch pipe, bound and bound.
[0012]
(6) When the water supply / hot water supply pipe unit of (4) or (5) is attached to the attachment position, the unpacking is performed and the branch pipe is kept bound.
[0013]
BEST MODE FOR CARRYING OUT THE INVENTION
[Embodiment 1]
FIG. 1 is an explanatory view in which a part of the entire configuration of a water / hot water supply piping unit according to Embodiment 1 of the present invention is omitted.
In the drawing, reference numeral 1 denotes an annular branch pipe portion, which is made of a flexible pipe material (for example, about 10 mm in diameter) made of a synthetic resin such as polybutene, and is formed in an annular shape and provided vertically for water supply. It comprises a branch pipe 2 and a branch pipe 3 for hot water supply. Reference numeral 21 denotes a water supply pipe serving as a water supply source, and reference numeral 25 denotes a water heater serving as a hot water supply source, which is connected to a rising pipe 26 branched from the water supply pipe 21. Reference numeral 30 denotes a bathtub installed in a dwelling unit, 31 denotes a wash basin, 32 denotes a washing machine, 33 denotes a sink, and 34 denotes a toilet bowl.
[0014]
Reference numeral 4 denotes a T-shaped joint made of a synthetic resin, which comprises a substantially linear main body and a branch provided orthogonally thereto, and a water supply branch pipe 2 or a hot water supply branch is provided at both ends of the main body. The pipe 3 is joined by heat fusion, and a branch portion of the joint 4 of the water supply branch pipe 2 is formed of a synthetic resin, and one end of the water supply branch pipe 16 connected to the water pipe 21 via the joint 24. The other end is joined by heat fusion. The branch of the joint 4 of the hot water branch pipe 3 is made of synthetic resin, and one end of a branch pipe 17 for hot water supply, one end of which is connected to a water heater 26 via a joint 24, is joined by heat fusion. ing.
[0015]
Reference numeral 5 denotes a substantially Y-shaped or h-shaped joint made of a synthetic resin (hereinafter referred to as a Y-shaped joint). As shown in FIG. A branch pipe part 5b branched at an acute angle to one side, and a water supply branch pipe 2 or a hot water supply branch pipe 3 is connected to both ends of the main body part 5a, and the branch part 5b is connected to equipment in a dwelling unit. Branch pipes are joined by heat fusion. In the above description, the T-shaped joint 4 is used to join the water supply branch pipe 16 and the hot water supply branch pipe 17, and the Y-shaped joint 5 is used to join the branch pipe to the dwelling unit equipment. Although a case is shown, the present invention is not limited to this, and a T-shaped or Y-shaped joint can be used as appropriate depending on the situation.
[0016]
The water supply branch pipe 2 and the hot water supply branch pipe 3 constituting the branch pipe section 1 are integrally fixed by a plurality of fixtures (not shown in FIG. 1). FIG. 3 shows an example of the fixture. The fixture 8 is formed in an L shape by a vertical piece 8a and a horizontal piece 8b, and two C-shaped holding parts 9a and 9b are provided on the side of the vertical piece 8a opposite to the horizontal piece 8b. The inner diameters of the holding portions 9a and 9b are formed to be substantially equal to or slightly smaller than the outer diameters of the water supply branch pipe 2 and the hot water supply branch pipe 3. Then, the water supply branch pipe 2 is fitted into the holding part 9a, and the hot water supply branch pipe 3 is fitted into the holding part 9b, whereby both are held at a predetermined interval. 8c is a screw insertion hole provided in the horizontal piece 8b. The fixing device 8 is provided at a position corresponding to a support member described later.
[0017]
Reference numeral 6 denotes a support member provided with two support members 6a and 6b made of wood, synthetic resin, or the like, which are arranged in a cross shape below the branch pipe part 1, and the above-mentioned water supply branch pipe 2 and hot water supply branch. The horizontal piece 8b of the fixture 8 to which the pipe 3 is integrally fixed is screwed, and together with the fixture 8, the branch pipe portion 1 is integrally held in a predetermined shape (annular shape). Reference numeral 7 denotes a through hole which is a mounting portion provided at the intersection (center portion) of the support members 6a and 6b, which is a mounting portion to a ceiling, a wall, or the like, which is a mounting position.
[0018]
11a is a flexible pipe, one end of which is connected to the water supply branch pipe 2 via the Y-shaped joint 5, and the other end of which is connected to the faucet of the bathtub 30 via the joint 24. , 12a is a branch pipe for water supply also connected to the faucet of the sink 31; 13 is a branch pipe for water supply also connected to the faucet of the washing machine 32; and 14a is also connected to the faucet of the sink 33. A water supply branch pipe 15 is also a water supply branch pipe connected to the faucet of the toilet 34.
[0019]
11 b is a flexible pipe, one end of which is connected to the branch pipe 3 for hot water supply via the Y-shaped joint 5, and the other end of which is connected to the faucet of the bathtub 30 via the joint 24. , 12b is a branch pipe for hot water supply also connected to the faucet of the sink 31, and 14b is a branch pipe for hot water supply also connected to the faucet of the sink 33. Although not shown, the number of branch pipes may be appropriately increased or decreased, for example, by connecting the hot water supply branch pipe 2 and a hot water tap provided in the washing machine 31 by a branch pipe.
[0020]
In the above description, the case where the support member 6 for supporting the branch pipe portion 1 is formed by crossing two support members 6a and 6b in a cross shape is shown, for example, as shown in FIG. The structure of the support member 6 can be appropriately changed, for example, the members 6 are formed in a substantially Y-shape at intervals of approximately 120 °, and the branch pipe section 1 is integrally fixed to the respective pieces by the fixtures 8.
[0021]
Each of the branch pipes 11a, 11b,... 16 having one end connected to the water supply pipe 2 or the hot water supply pipe 3 of the branch pipe part 1 and a joint attached to the other end, as described above. , 17 (hereinafter, these may be collectively referred to as branch pipes 11), the installation location and space of the branch pipe section 1, the water pipe 21, the water heater 25 from the branch pipe section 1. The distances (lengths of the branch pipes 11) to the connecting parts of the in-house equipment such as the bathtub 30 or the faucet and the faucet are obtained in advance, and the unit is manufactured in advance at a factory or the like.
[0022]
Then, the branch pipes 11 are bundled along the peripheral edge of the branch pipe section 1, are appropriately bound and packed, and are transported to a building site. At this time, by forming the joint 5 (including the joint 4 as necessary) of the branch pipe section 1 in a Y-shape, the branch pipes 11 can be bundled along the branch pipe section 1 and packed. Since it is possible, it can be packed compactly without being bulky, and can be easily opened.
[0023]
Next, an example of a construction procedure of the water / hot water supply piping unit according to the present embodiment will be described.
A plurality of water supply / hot water supply piping units packed for each dwelling unit are transported to a building site, and transported to the vicinity of a place where each dwelling unit is installed (for example, a kitchen, a bathroom, a corridor, etc.) and unpacked. At this time, the branch pipes 11 are kept bound. Then, as shown in FIG. 5, the through-hole 7 formed in the supporting member 6 by lifting the branch pipe portion 1 is screwed into a ceiling slab 40, a wall, or the like (hereinafter simply referred to as a ceiling) at a mounting position. It is inserted into the rod 41, and the nut 42 is screwed and fixed from below. At this time, if necessary, each branch pipe 11 is positioned in the direction of the corresponding water pipe 21, the water heater 25, and the equipment in each dwelling unit. Thus, the attachment of the branch pipe section 1 to the ceiling 40 is completed. The support member 6 may be attached with the support member 6 facing upward.
[0024]
Then, according to the progress of the construction work, the restraint is released, the branch pipes 11 are extended, and the water pipes 21, the water heater 25 and the facilities in the respective dwelling units are extended almost in parallel with the ceiling 40, and then the wall is extended. To fix each joint 24 provided at the distal end portion at a predetermined position. This completes the plumbing work and the installation of the water supply / hot water supply piping unit is completed. The above-mentioned construction procedure is an example, and can be changed as appropriate according to the situation at the construction site.
[0025]
Next, the water supply / hot water supply operation of the present embodiment laid in the dwelling unit as described above will be described.
First, a valve (not shown) of the water pipe 21 is first opened, and tap water is filled into the water supply branch pipe 2, the hot water branch pipe 3, and the branch pipes 11 of the branch pipe section 1.
Now, for example, when the faucet of the sink 33 is opened, the water in the branch pipe 14a and the water supply branch pipe 2 is discharged from the faucet. Along with this, the water in the water pipe 21 is sent to the water supply branch pipe 16, the water supply branch pipe 2, and the branch pipe 14a, and is subsequently discharged from the faucet. When the faucet is closed, water discharge stops, and tap water is always filled in the water supply branch pipe 16, the water supply branch pipe 2, and the branch pipes 11 connected thereto.
[0026]
Further, for example, when the hot tap of the sink 33 is opened, the water in the branch pipe 14b, the hot water supply branch pipe 3, and the hot water supply branch pipe 17 is discharged from the hot tap, and the water heater 25 is operated by the water discharge, and the water pipe 21 is discharged. The hot water that has been successively heated is discharged from the hot water tap via the hot water supply branch pipe 3 and the branch pipe 14b. According to the results of the experiment, the waiting time for obtaining 30 ° C. hot water was about 20 seconds, depending on the size of the piping unit.
[0027]
When the hot water tap is closed, the operation of the water heater 25 is stopped, and the hot water is supplied to the downstream side of the water heater 25, and thus to the inside of the water heater branch pipe 17, the hot water branch pipe 3 and each branch pipe 11 connected thereto. Filled with water.
In this case, a hot water supply pipe is provided between the hot water supply branch pipe 3 and the hot water supply device 25, and hot water is always circulated through the loop thereof. A hot water system can be realized.
[0028]
According to the present embodiment as described above, it is possible to supply hot water in a very short time, as well as to supply water to the facilities in each dwelling unit, and it is also possible to supply water and hot water simultaneously.
Further, for example, water, hot water, or water and hot water can be simultaneously supplied to a plurality of dwelling units such as the wash basin 31, the washing machine 32, and the sink 33.
[0029]
[Embodiment 2]
FIG. 6 is an explanatory diagram of a main part of a water / hot water supply piping unit according to Embodiment 2 of the present invention.
In the first embodiment, the water supply branch pipe 2 and the hot water supply branch pipe 3 having the same annular outer diameter are vertically arranged, and the branch pipe part 1 fixed by the fixture 8 is attached to the support member 6 and integrated. However, in the present embodiment, the branch pipe section 1 is configured by arranging the annular water supply branch pipe 2 and the hot water supply branch pipe 3 on substantially the same plane.
[0030]
That is, as shown in FIG. 6, for example, the hot water supply branch pipe 3 is formed smaller in diameter than the water supply branch pipe 2, and is arranged concentrically inside the water supply branch pipe 2.
Then, the water supply branch pipe 2 and the hot water branch pipe 3 are integrally held at predetermined intervals by a plurality of fixtures 8 having C-shaped holding parts 9a, 9c on both sides of the mounting arm 8d as shown in FIG. Then, the mounting arm 8d is screwed to the support member 6 to be integrally formed.
[0031]
In the above description, the case where the hot water supply branch pipe 3 is formed to have a small diameter is shown, but the water supply branch pipe 2 may be formed to have a small diameter and disposed inside the hot water supply branch pipe 3.
Also in the present embodiment, the water supply / hot water supply piping unit is laid in the building in the same manner as in the first embodiment, and substantially the same operation and effect can be obtained.
[0032]
In the present invention according to the first and second embodiments, the water supply branch pipe 2 and the hot water branch pipe 3 are formed in a ring shape with a flexible pipe material, and these are arranged vertically and concentrically and fixed with the fixture 8. Then, all or most of the branch pipes 11 are connected to the water supply branch pipe 2 and the hot water supply branch pipe 3 via the Y-shaped joint 5, so that each branch pipe 11 extends along the branch pipe section 1. Since it can be easily collected and packed compactly, it is convenient for transportation and the like.
In addition, since each branch pipe 11 is bundled along the branch pipe section 1 and attached to the ceiling 40 by the support member 6 while being bound, the attachment is extremely easy, and the piping material is reduced during the construction period. It will not be stepped on or damaged.
[0033]
The water supply branch pipe 2 and the hot water branch pipe 3 are arranged vertically and concentrically, are integrally fixed by the support member 6, and are attached to the ceiling 40 as they are. And the hot water supply branch pipe 3 need not be separately laid. Therefore, not only the installation space can be reduced, but also the installation can be performed at once, so that the workability can be greatly improved.
Further, since the branch pipe portion 1 is fixed to the support member 6 in a small circular shape (for example, a diameter of about 1 m) or an elliptical shape, the branch pipe portion 1 can be laid in a corridor or a narrow ceiling, thereby increasing the degree of freedom in laying. can do.
Further, since the unit is previously unitized in a factory or the like, there is no generation of residual pipe material at the construction site.
[0034]
[Embodiment 3]
In the first and second embodiments, a case has been described in which the branch pipe section 1 including the annular water supply branch pipe 2 and the hot water supply branch pipe 3 is fixed to the support member 6 via the fixture 8 and integrated. In the embodiment, the support member 6 is omitted.
That is, as shown in FIG. 8 (a), the plurality of fixtures 8 described with reference to FIG. 2 are connected to the water supply branch pipe 2 with the horizontal pieces 8b facing upward and the upper and lower holding parts 9a and 9b. The hot water supply branch pipe 3 is fitted and fixed, and the horizontal piece 8b is screwed to the ceiling 40 for mounting.
[0035]
As shown in FIG. 8 (b), the water supply branch pipe 2 and the water supply branch pipe 3 which are arranged concentrically are respectively fitted and fixed to holding portions 9a and 9b provided on both sides of the mounting arm 8d. 8d is attached to the ceiling 40 by screwing.
According to the present embodiment, installation on the ceiling 40 is somewhat troublesome as compared with the first and second embodiments, but since there is no support member 6, it can be made more compact at the time of packing.
[0036]
In the above description, the case where the water supply branch pipe 2 and the hot water branch pipe 3 arranged vertically or concentrically are fixed by the fixture 8 shown in FIG. 2 or FIG. 7 is shown, but the structure of the fixture 8 is not limited to this. Instead, a structure having another structure may be used.
Further, the case where the through-hole 7 provided in the center of the support member 6 is fitted to the threaded rod 41 provided in the ceiling 40 and fixed with the nut 42 to install the branch piping section 1 is shown. Means may be used, or the fixing may be performed at two or more locations. Furthermore, although the case where the branch pipe section 1 is attached to the ceiling 40 has been described, it may be installed on a wall surface or a floor depending on the situation at the site.
[0037]
【The invention's effect】
A water supply / hot water supply pipe unit according to the present invention has a water supply branch pipe and a hot water supply branch pipe which are formed in a ring shape with a pipe material and are connected to a water supply source, a hot water supply source, and branch pipes connected to facilities in the dwelling unit. Since the water supply branch pipe and the hot water branch pipe are arranged vertically and concentrically and fixed integrally by the support member having the mounting part to the position, mounting to the mounting position is extremely easy, Can be improved.
[Brief description of the drawings]
FIG. 1 is an explanatory view in which a part of an entire configuration of a water supply / hot water supply pipe unit according to Embodiment 1 of the present invention is omitted.
FIG. 2 is an explanatory view of a joint for joining a branch pipe to a water supply branch pipe and a hot water supply branch pipe of FIG. 1;
FIG. 3 is an explanatory view of a fixture for fixing the water supply branch pipe and the hot water supply branch pipe of FIG. 1;
FIG. 4 is an explanatory diagram of another example of the first embodiment.
FIG. 5 is an explanatory diagram of a procedure for attaching a branch pipe section of the first embodiment to a ceiling.
FIG. 6 is an explanatory diagram of a main part of a water / hot water supply piping unit according to Embodiment 2 of the present invention.
FIG. 7 is an explanatory view of a fixture for fixing the water supply branch pipe and the hot water supply branch pipe of FIG. 6;
FIG. 8 is an explanatory diagram of a main part of a water / hot water supply piping unit according to Embodiment 3 of the present invention.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Branch piping part 2 Water supply branch pipe 3 Hot water branch pipe 4,5,24 Joint 6 Support member 7 Mounting part 8 Fixtures 11a-11b ... 17 Branch pipe 21 Water pipe 25 Water heater 30 Bathtub 31 Washstand 32 Washing machine 33 Sink 34 toilet 40 ceiling (mounting position)
41 Screw rod 42 Nut

Claims (6)

It has a water supply branch pipe formed in an annular shape with a pipe material, to which one or more branch pipes are connected, and a hot water supply branch pipe to which one or more branch pipes are connected,
A water supply / hot water supply pipe unit, wherein the water supply branch pipe and the hot water supply branch pipe are vertically and concentrically arranged and fixed integrally by a support member having a mounting portion at a mounting position. A water supply source, a water supply branch pipe connected to a branch pipe connected to equipment in a dwelling unit and a hot water supply connected to a branch pipe connected to equipment in a dwelling unit, which is formed in an annular shape by a flexible pipe material. Having a branch pipe,
A water supply / hot water supply piping unit, wherein the water supply branch pipe and the hot water supply branch pipe are vertically and concentrically arranged and integrally fixed by a support member having a mounting portion at a mounting position. The water supply / hot water supply pipe unit according to claim 1 or 2, wherein the support member is formed in a cross shape or a substantially Y-shape, and a mounting portion is provided at a central portion thereof. A step of mounting the water supply / hot water supply pipe unit according to any one of claims 1 to 3 at a mounting position by a support member, which is manufactured in a factory or the like.
Elongating the branch pipe and piping the pipe at a predetermined position. The water supply / hot water supply piping unit according to claim 4, wherein the water supply / hot water supply piping unit manufactured at the factory or the like converges, binds, and packs each branch pipe around the water supply branch pipe and the hot water supply branch pipe. Construction method. 6. The method for installing a water / hot water supply piping unit according to claim 4, wherein the water / hot water supply piping unit is attached to the installation position while the package is unpacked and the branch pipe is kept bound.

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