JP4095868B2 - Water supply / hot water supply piping unit and its construction method - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a water / hot water supply piping unit for piping in a dwelling unit such as an apartment house and a construction method thereof.
[0002]
[Prior art]
Conventionally, a branching method or a header method has been generally employed as a water supply / hot water supply pipe for this type of dwelling unit.
However, in the case of the branch method, there is a risk of water leakage from the joint, and since it is usually floor piping, it is difficult to detect when water leaks, and in addition, after the rain curing of the building frame under construction has been carried out There was a problem that floor piping could not be laid.
[0003]
In the case of the header construction method, the total pipe length becomes long, and further, there are not only restrictions on the installation positions of the water supply and hot water supply headers, but also problems such as the need for inspection space and construction space.
Furthermore, in both cases of the branching method and the header method, several types of piping sizes are required, which causes various problems such as an increase in types of joints.
[0004]
In order to solve such a problem, Japanese Patent Application Laid-Open No. 10-88631 discloses a loop pipe portion formed in a ring shape with a pipe material having flexibility, and having a water supply point or a hot water supply point in a part of the ring, Prefabricated water supply consisting of a branch pipe part having flexibility that branches from the loop pipe part and is connected to each faucet, and the loop pipe part and each branch pipe part are joined by thermal fusion via a joint. And hot water supply piping systems have been proposed.
[0005]
[Problems to be solved by the invention]
The water supply and hot water supply piping systems as described above have the advantages of being excellent in on-site workability, reducing the number of parts and reducing the cost, but the water supply loop piping and the water supply loop piping are separately provided. Since it had to be provided, not only the construction was troublesome, but a large installation space was required. In addition, the loop piping portion is configured such that a plurality of mounting brackets that hold the pipe material are fixed to the ceiling, wall, or the like, but is unstable and troublesome to install because of its flexibility.
[0006]
The present invention was made in order to solve the above problems, and can easily and stably attach a branch pipe portion formed by integrating a water supply branch pipe and a hot water supply branch pipe to one place of an installation position. The object of the present invention is to provide a water supply / hot water supply piping unit excellent in flowing water and workability, and a method for its construction.
[0007]
[Means for Solving the Problems]
(1) A water supply / hot water supply piping unit according to the present invention is formed in an annular shape by a pipe material, and a water supply branch pipe connected to one or more branch pipes and a hot water supply branch connected to one or more branch pipes. 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 pipe and having a mounting portion at the mounting position.
[0008]
(2) Moreover, the water supply / hot-water supply piping unit according to the present invention is formed in an annular shape by a flexible pipe material, and is connected to a water supply source and branch pipes connected to the dwelling unit facilities and a hot water supply pipe The hot water branch pipe and the hot water branch pipe are arranged vertically or concentrically by a supporting member having a mounting portion to the 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 an attachment portion is provided at the center thereof.
[0010]
(4) Moreover, the construction method of the water supply / hot-water supply pipe unit according to the present invention is such that the water-supply / hot-water supply pipe unit according to any one of the above (1) to (3) made in a factory or the like is attached to the mounting position by the support member. A step of attaching, and a step of extending the branch pipe and piping it to a predetermined position.
[0011]
(5) In the water supply / hot water supply piping unit manufactured in the factory of (4) above, each branch pipe is focused and bound around the water supply branch pipe and the hot water supply branch pipe and packed.
[0012]
(6) When mounting the water supply / hot water supply piping unit of (4) or (5) above to the mounting position, it is performed in a state in which the branch pipe is left unbound and bound.
[0013]
DETAILED DESCRIPTION OF THE INVENTION
[Embodiment 1]
FIG. 1 is an explanatory diagram in which a part of the overall configuration of the water / hot water supply piping unit according to Embodiment 1 of the present invention is omitted.
In the figure, reference numeral 1 denotes an annular branch pipe portion, which is made of a synthetic pipe material such as polybutene and made of a flexible pipe material (for example, having a diameter of about 10 mm), and is formed in an annular shape for water supply. It consists of a branch pipe 2 and a branch pipe 3 for hot water supply.
A water pipe 21 is a water supply source, and a water heater 25 is a hot water source, which is connected to a riser pipe 26 branched from the water pipe 21. 30 is a bathtub installed in the dwelling unit, 31 is a wash basin, 32 is a washing machine, 33 is a sink, and 34 is a toilet.
[0014]
Reference numeral 4 denotes a T-shaped joint made of synthetic resin, which is composed of a substantially straight main body portion and a branch portion provided orthogonal to the main body portion, and water supply branch pipes 2 or hot water supply branches at both ends of the main body portion. The pipe 3 is joined by heat fusion, and the branch portion of the joint 4 of the water supply branch pipe 2 is made of synthetic resin, and one end of the branch pipe 16 for water supply connected to the water pipe 21 via the joint 24. The other end is joined by thermal fusion. Further, the branch portion of the joint 4 of the hot water supply branch pipe 3 is made of synthetic resin, and the other end of the branch pipe 17 for hot water supply having one end connected to the water heater 26 via the 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. 2, from a substantially straight main body 5a and main body 5a. It consists of a branch pipe portion 5b branched at an acute angle on 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 portion 5a, and a branch section 5b is connected to equipment in a dwelling unit. Each branch pipe is joined by thermal fusion. In the above description, the T-shaped joint 4 is used for joining the branch pipe 16 for water supply and the branch pipe 17 for hot water supply, and the Y-shaped joint 5 is used for the branch pipe joined to the dwelling unit facilities. Although the case is shown, the present invention is not limited to this, and a T-shaped or Y-shaped joint can be appropriately used depending on the situation.
[0016]
The branch pipe 2 for water supply and the branch pipe 3 for hot water supply which comprise the branch piping part 1 are integrally fixed by the some fixing tool (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 portions 9a and 9b are provided on the opposite side of the vertical piece 8a to the horizontal piece 8b. The inner diameters of the holding portions 9a and 9b are 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, by inserting the water supply branch pipe 2 in the holding portion 9a and the hot water supply branch pipe 3 in the holding portion 9b, both are held at a predetermined interval. 8c is a screw insertion hole provided in the horizontal piece 8b. The fixture 8 is provided at a position corresponding to a support member described later.
[0017]
Reference numeral 6 denotes a support member in which two support members 6a and 6b made of wood, synthetic resin or the like are arranged in a cross shape on the lower side of the branch pipe portion 1, and the above-described water supply branch pipe 2 and hot water branch. The horizontal piece 8b of the fixture 8 to which the tube 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). Reference numeral 7 denotes a through-hole that is an attachment portion to a ceiling, a wall, or the like, which is an attachment position provided at an intersection (center) between the support members 6a and 6b.
[0018]
11a is a flexible pipe, one end of which is connected to the water supply branch pipe 2 through the Y-shaped joint 5 and the other end of which is connected to the faucet of the bathtub 30 through the joint 24. 12a is a branch pipe for water supply connected to the faucet of the wash basin 31; 13 is a branch pipe for water supply connected to the faucet of the washing machine 32; 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]
11b is a flexible pipe, and one end is connected to the hot water supply branch pipe 3 via the Y-shaped joint 5 and the other end is connected to the hot water tap of the bathtub 30 via the joint 24. , 12b is a branch pipe for hot water supply connected to the tap of the wash basin 31, and 14b is a branch pipe for hot water supply connected to the tap of the sink 33. In addition, although not shown in figure, you may increase / decrease a branch pipe suitably, for example, connecting the hot water supply branch pipe 2 and the hot-water tap provided in the washing machine 31 with a branch pipe.
[0020]
In the above description, the case where the support member 6 that supports the branch pipe portion 1 is configured by crossing the 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 changed as appropriate, for example, the member 6 is formed in a substantially Y shape at intervals of approximately 120 °, and the branch pipe portion 1 is integrally fixed to each piece by the fixture 8.
[0021]
Each branch pipe 11a, 11b,... 16 having one end connected to the water supply pipe 2 or hot water supply pipe 3 of the branch pipe section 1 and a joint attached to the other end. , 17 (hereinafter, these may be collectively referred to as branch pipes 11). The water supply / hot water supply pipe unit includes the installation location and space of the branch pipe section 1, the branch pipe section 1 through the water pipe 21, and the water heater 25. The distance (the length of each branch pipe 11) to the connecting part of the in-house equipment such as the bathtub 30 or the faucet and the hot water tap is obtained and manufactured in advance in a factory or the like to be unitized.
[0022]
And each branch pipe 11 is converged along the periphery of the branch piping part 1, is bound and packed appropriately, and is transported to a construction site. At this time, by forming the joint 5 (including the joint 4 as necessary) of the branch pipe part 1 in a Y shape, each branch pipe 11 can be converged along the branch pipe part 1 and packed. Therefore, it can be packed compactly without being bulky, and unpacking is easy.
[0023]
Next, an example of the 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 the construction site, transported to the vicinity of each dwelling location (for example, kitchen, bathroom, corridor, etc.) and unpacked. At this time, each branch pipe 11 is left bound. Then, as shown in FIG. 5, a screw provided in a ceiling slab 40 or a wall or the like (hereinafter simply referred to as a ceiling), which is an attachment position, is provided with a through-hole 7 provided in the support member 6 by lifting the branch pipe portion 1. The nut 42 is inserted into the bar 41, and the nut 42 is screwed from below to be fixed. At this time, each branch pipe 11 is aligned with the direction of the corresponding water pipe 21, hot water heater 25, and each dwelling unit as needed. Thereby, the attachment to the ceiling 40 of the branch piping part 1 is complete | finished. It may be attached with the support member 6 facing up.
[0024]
Then, after releasing the restraint according to the progress of the construction work, extending each branch pipe 11, extending to the upper side of the water pipe 21, the water heater 25, and the respective in-house facilities almost parallel to the ceiling 40, the wall The joints 24 provided at the distal end portions are fixed at predetermined positions. This completes the piping work and completes the installation of the water supply / hot water supply piping unit. In addition, said construction procedure shows the example, and can be suitably changed according to the condition etc. of a 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 the water supply branch pipe 2, the hot water supply branch pipe 3 and each branch pipe 11 of the branch pipe portion 1 are filled with tap water.
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, water in the water pipe 21 is sent to the branch pipe 16 for water supply, the water supply branch pipe 2, and the branch pipe 14a, and subsequently discharged from the faucet. When the faucet is closed, water discharge stops, and tap water is always filled in the branch pipe 16 for water supply, the water supply branch pipe 2 and each branch pipe 11 connected thereto.
[0026]
For example, when the hot water 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 water tap, and the water heater 25 is activated by the water discharge, so that the water pipe 21 The heated water is fed while being heated, and the heated hot water is discharged from the hot water tap through the hot water supply branch pipe 3 and the branch pipe 14b. According to the result of the experiment, although depending on the scale of the piping unit, the waiting time for obtaining hot water of 30 ° C. was around 20 seconds.
[0027]
When the hot water tap is closed, the operation of the water heater 25 is stopped, and the hot water is provided in the downstream side of the water heater 25, and thus in the branch pipe 17 for the water heater, the hot water branch pipe 3, and each branch pipe 11 connected thereto. Filled with water.
In this case, if a hot water return pipe is provided between the hot water supply branch pipe 3 and the hot water heater 25 and the hot water is constantly circulated through the loop portion, the length of each branch pipe 11 can be determined quickly. A hot water system can be realized.
[0028]
According to the present embodiment as described above, hot water can be supplied in a very short time as well as supplying water to each dwelling unit, and water and hot water can be supplied simultaneously.
Furthermore, for example, water or 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, when the water supply branch pipe 2 and the hot water branch pipe 3 having the same annular outer diameter are arranged vertically and the branch pipe portion 1 fixed by the fixture 8 is attached to the support member 6 and integrated. However, in this embodiment, the branch water supply branch pipe 2 and the hot water supply branch pipe 3 are arranged on substantially the same plane to constitute the branch pipe portion 1.
[0030]
That is, as shown in FIG. 6, for example, the hot water supply branch pipe 3 is formed to have a smaller diameter than the water supply branch pipe 2 and is disposed concentrically inside the water supply branch pipe 2.
Then, the water supply branch pipe 2 and the hot water supply branch pipe 3 are integrally held at a predetermined interval by a plurality of fixtures 8 having C-shaped holding portions 9a and 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 so as to be integrated.
[0031]
In the above description, the case where the hot water supply branch pipe 3 is formed with a small diameter is shown, but the water supply branch pipe 2 may be formed with 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 operations and effects 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 supply branch pipe 3 are formed in an annular shape by a pipe material having flexibility, and these are arranged vertically or concentrically and fixed by the fixture 8. Then, by connecting all or most of each branch pipe 11 to the water supply branch pipe 2 and the hot water supply branch pipe 3 via the Y-shaped joint 5, each branch pipe 11 is connected to the branch pipe section 1. It can be easily bundled and packed compactly, which is convenient for transportation.
Further, since the branch pipes 11 are converged along the branch pipe portion 1 and are attached to the ceiling 40 by the support member 6 while being constrained, the attachment is extremely easy, and the pipe material is used during the construction period. It will not be stepped on or damaged.
[0033]
Since the water supply branch pipe 2 and the hot water supply branch pipe 3 are arranged vertically or concentrically and fixed integrally with the support member 6 and are attached to the ceiling 40 as they are, the water supply branch pipe 2 is conventionally provided. There is no need to separately lay the hot water supply branch pipe 3. For this reason, not only the installation space can be reduced, but also the installation can be greatly improved because it can be installed at one time.
Furthermore, since the branch pipe portion 1 is fixed to the support member 6 in a small circular shape (for example, about 1 m in diameter) or an ellipse, it can be laid on a corridor or a narrow ceiling, and the degree of freedom in laying is expanded. can do.
In addition, since it is unitized at a factory or the like in advance, there is no pipe material remaining at the construction site.
[0034]
[Embodiment 3]
Although Embodiment 1 and 2 demonstrated the case where the branch piping part 1 which consists of a cyclic | annular water supply branch pipe 2 and the hot water supply branch pipe 3 was 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 in FIG. 2 are connected to the water supply branch pipe 2 and the holding parts 9a, 9b above and below the horizontal piece 8b. The hot water supply branch pipe 3 is inserted and fixed, and the horizontal piece 8b is screwed to the ceiling 40 for attachment.
[0035]
Further, as shown in FIG. 8 (b), the water supply branch pipe 2 and the water supply branch pipe 3 arranged concentrically are fitted and fixed to the holding portions 9a and 9b provided on both sides of the attachment arm 8d, respectively. 8d is fixed to the ceiling 40 by screwing.
According to the present embodiment, the attachment to 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 during packaging.
[0036]
In the above description, the case where the water supply branch pipe 2 and the hot water supply 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 limited to this. However, other structures may be used.
Moreover, although the through-hole 7 provided in the center part of the support member 6 was fitted to the screw rod 41 provided in the ceiling 40 and fixed with the nut 42, the case where the branch piping part 1 was installed was shown. Means may be used, and fixing may be performed at two or more locations. Furthermore, although the case where the branch piping part 1 was attached to the ceiling 40 was shown, you may install in a wall surface or a floor depending on the condition of the field.
[0037]
【The invention's effect】
A water supply / hot water supply piping unit according to the present invention has a water supply branch pipe and a hot water supply branch pipe formed in a ring shape by a pipe material, to which a branch pipe connected to a water supply source, a hot water supply source and a dwelling unit is connected The water supply branch pipe and the hot water supply branch pipe are arranged vertically and concentrically by a support member having a mounting portion at the position so as to be fixed integrally. Can be improved.
[Brief description of the drawings]
FIG. 1 is an explanatory diagram in which a part of the overall configuration of a water / hot water supply piping unit according to Embodiment 1 of the present invention is omitted.
FIG. 2 is an explanatory view of a joint for joining branch pipes to the water supply branch pipe and the 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;
4 is an explanatory diagram of another example of the first embodiment. FIG.
FIG. 5 is an explanatory diagram of a procedure for attaching the branch pipe portion of the first embodiment to the 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.
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 supply branch pipe 4,5,24 Joint 6 Support member 7 Attachment part 8 Fixation part 11a-11b ... 17 Branch pipe 21 Water pipe 25 Water heater 30 Bathtub 31 Wash basin 32 Washing machine 33 Sink 34 Toilet 40 Ceiling (installation position)
41 Screw rod 42 Nut

Claims (6)

It is formed in an annular shape by a pipe material, and has a water supply branch pipe to which one or two or more branch pipes are connected and a hot water supply branch pipe to which one or two or more branch pipes are connected,
A water supply / hot water supply piping unit characterized in that 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 an attachment portion to an attachment position. Hot water supply that is formed in an annular shape by a pipe material having flexibility, and is connected to a water supply source, a branch pipe connected to a branch pipe connected to a dwelling unit, a hot water supply source, and a branch pipe connected to a dwelling unit Have a branch pipe,
A water supply / hot water supply piping unit characterized in that 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 an attachment portion to an attachment position. The water supply / hot water supply piping unit according to claim 1 or 2, wherein the support member is formed in a cross shape or a substantially Y shape, and an attachment portion is provided at a central portion thereof. Attaching the water supply / hot water supply piping unit according to any one of claims 1 to 3 manufactured at a factory or the like to a mounting position by a support member;
A method for constructing a water supply / hot water supply piping unit, comprising: extending a branch pipe and piping the pipe to a predetermined position. 5. The water / hot water piping unit according to claim 4, wherein the water / hot water piping unit manufactured in the factory or the like is bundled by concentrating each branch pipe around the water supply branch pipe and the hot water branch pipe. Construction method. 6. The method for constructing a water supply / hot water supply piping unit according to claim 4 or 5, wherein the water supply / hot water supply piping unit is attached to the attachment position in a state in which the branch pipe is unbound and bound.

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