JP2001159165A - Header type water and hot water supply piping - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a header type water and hot water supply piping which is excellent in workability and economic efficiency and can prevent generation of noise and reduce the outdoor piping works. SOLUTION: In the header type water and hot water supply piping, a resin branch pipe (4) is connected to a leading-out metal tool (28) attached to a floor member (24) from the underfloor side, and water supply pipes and hot water pipes for an instrument in a water section are set to communicate with the resin branch pipe (4) from the upper side of the floor to connect to the leading- out metal tool (28). In this way, sleeves for replacement or protection of the branch pipe (4) can be abolished in the penetration part of the floor member.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a water supply / hot water supply pipe for a house employing a header method.

[0002]

2. Description of the Related Art Conventionally, a housing adopting a fork branching method in which a branch pipe sequentially branched in a branch from a main water supply pipe or a main hot water supply pipe via a joint is connected to a faucet of each water circulating facility. There are known water supply and hot water supply pipes. However, in such a forked branch method, there are inconveniences such as a large number of connection points, a high occurrence of water leakage due to poor construction, and a large change in flow rate when the water plumbing equipment is used at the same time.

[0003] In recent years, a water supply method using a header method has been adopted, in which a main water supply pipe or a branch pipe branched from a main hot water supply pipe through a header in an octopus-like manner is connected one-to-one to a water faucet of each water circulating facility.・ Hot water supply piping is becoming widespread. In such a header method, compared with the fork branch method, the number of connection points is small and water leakage due to poor construction can be significantly suppressed, and the flow rate change is small when simultaneous use of water circulating equipment, stable water supply, Hot water is available.

[0004]

In the above header method, when a trouble such as water leakage occurs, the branch pipe passing through the concrete floor or the wall can be easily replaced. For protection, it is common to insert an empty pipe called a sheath pipe in advance, and then insert a flexible branch pipe into this sheath pipe. When connecting to a water supply facility, a branch pipe was inserted into a sheath pipe penetrating the floor material. Therefore, laying of the sheath tube and insertion work into the sheath tube are necessary,
This has led to an increase in construction labor and construction costs. Moreover, since the sheath tube has a large outer diameter and is hard to bend, the workability is also deteriorated from this.

[0005] In addition, since there is a gap between the sheath tube and the branch tube, when a water hammer occurs, the branch tube is crushed and collides with the sheath tube, thereby causing a problem that noise is easily generated.

[0006] In view of the above, an object of the present invention is to provide a header type water supply / hot water supply pipe which has good workability, is economical, and generates little noise.

[0007]

SUMMARY OF THE INVENTION In order to solve the above problems, the present invention divides a main water supply pipe or a main hot water supply pipe into a plurality of branch pipes via a header, and divides these branch pipes into corresponding water pipes. This is a header-type water supply / hot water supply pipe that leads to equipment, and connects a resin branch pipe to the floor removal fitting attached to the floor material from below the floor, and connects the water supply pipe and hot water pipe of the water plumbing equipment to the branch. It is characterized in that it is connected to the floor take-out fitting from above the floor so as to communicate with the pipe.

According to the second aspect of the present invention, the floor take-out fitting is
The floor material is formed into a cylindrical shape that penetrates vertically, and the upper end of the floor take-out fitting is screwed with a water supply pipe or a hot water supply pipe of a water supply facility, and the lower end is screwed with a branch pipe via a joint. I did it.

According to the third aspect of the present invention, the branch pipe is made of crosslinked polyethylene or polybutene.

In the invention of claim 4, the header is installed under the floor, and the branch pipe is routed under the floor.

[0011]

Embodiments of the present invention will be described below in detail with reference to the drawings. FIG. 1 is a view showing a construction state near a sink of a header-type water supply / hot water supply pipe according to an embodiment of the present invention, FIG. 2 is a view showing a construction state near a toilet low tank, and FIG.・ A perspective view showing the entire hot water supply pipe, FIG. 4 is an exploded perspective view of a floor takeout fitting part,
FIG. 5 is a vertical cross-sectional view of a floor take-out fitting, and FIG. 6 is a vertical cross-sectional view of a main pipe and a branch pipe.

In FIG. 3, (1) is a main water supply pipe led to the underfloor space (2) on the first floor of a detached house, and the main water supply pipe (1) is connected to the underfloor space (2). It is connected to the installed water supply header (3). Further, from the water supply header (3), a plurality of branch water supply pipes (4) (4)... Are branched in an octopus foot shape, and these branch water supply pipes (4) (4). ), Water heater (10), kitchen sink (11), toilet (12), washing machine (1) attached to the outer surface of the building outer wall (9)
3) The unit bath (14) and the sink (15) are connected to the corresponding water faucet on the first floor through the shortest route, and if there is a water facility on the second floor, the inside of the building Stand up the pipe space and be led to the underfloor space on the second floor.

(20) is a main hot water supply pipe led from the hot water supply (10) to the underfloor space (2), and the main hot water supply pipe (20) is a hot water supply header installed in the underfloor space (2). Connected to (21). Also, from the hot water supply header (21), multiple
(22) (22)… They are branched like octopus legs, and these branch hot water supply pipes
(22) (22)… is the underfloor space in the same way as the branch water pipes (4) (4)…
It is routed in (2) and connected through almost the shortest path to the faucets of the corresponding water facilities such as the kitchen sink (11), unit bath (14) and washbasin (15), and the water goes to the second floor If there is a facility, it rises up the pipe space in the building and is led to the underfloor space on the second floor.

Main pipe connected to each header (3) (21)
(1) (20) and branch pipes (4), (22)..., As shown in FIG. 6, a cross-linked polyethylene inner pipe (50) is provided with a foamed polyethylene protective material (51) having a heat retaining function. It is a flexible resin tube coated.

Crosslinked polyethylene is an ultrahigh molecular weight resin in which polyethylene molecules have a three-dimensional network structure, has a wide range of operating temperatures and pressures, and is resistant to chlorine, acids, and alkalis contained in tap water for disinfection and sterilization. It also exhibits excellent durability and does not adversely affect water quality.

For this reason, by forming each of the pipes (1), (4), (20), (22)... As a resin pipe made of cross-linked polyethylene, it is possible to use the pipe for a long time with little water leakage and the like, and it is almost unnecessary to replace it. This eliminates the need to lay the sheath over the entire pipe. Note that the inner tube (50) is not limited to being made of crosslinked polyethylene, but may be made of polybutene.

In the above header type hot water supply / water supply pipe, a branch pipe (4) to a water circulating facility such as a sink (11) or a toilet (12).
As shown in FIG. 1 or FIG. 2, the connection of (22)... Is made by a flooring method via a floor fitting (28).

As shown in FIG. 4, the floor take-out fitting (28) has a cylindrical fitting body (29) and an annular flange (30) projecting outward from the upper end of the fitting body (29). ), A female screw portion (31) is formed on the inner periphery of the bracket body (29), and three screw insertion holes (32) (3) are formed in the flange (30).
2) is formed. In this floor take-out fitting (28), the fitting body (29) is inserted into the mounting hole (27) formed in the floor material (24) from above, and the flange (30) abuts on the upper surface of the floor material (24). In this state, the screws (33) (33) inserted into the screw insertion holes (32) (32) of the flange (30) are screwed into the floor material (24) to thereby provide the floor material (24). ).

In the sink (11) and the toilet (12) above the floor, a metal water supply pipe (34) extending vertically is connected to the water stopcock (36). The male thread (35) formed at the lower end of the (34) is connected to the female thread (3
By screwing into 1), the water supply pipe on the water supply facility side (34)
Is connected to the upper end of the floor removal fitting (28).

In the branch water supply pipe (4) below the floor,
A male screw adapter (37), which is a type of joint, is attached to the end of the inner tube (50) that is exposed without covering the outer tube (51), and is formed at the upper end of the male screw adapter (37). Male thread (38), the female thread (31) of the bracket body (29)
The branch water supply pipe (4) is connected to the lower end of the floor removal fitting (28) via a male screw adapter (37).

At the time of actual construction, first, the branch water supply pipe (4) on the lower side of the floor is lifted to the upper side of the floor through the mounting hole (27) of the floor material (24), and the male screw adapter (37) is attached to the tip thereof. Then, remove the male screw adapter (37) from the floor
8), and then attach the floor removal fitting (28) to the flooring (24) .After this installation, connect the water supply pipe (34) to the upper end of the floor removal fitting (28). The water supply pipe (34) is connected to the sink (11) and the stopcock (36) of the toilet (12).

In the above flooring piping, FIG.
As shown in FIG. 2 and in FIG.
Fix the part within 500 mm in horizontal distance from the rising center of the branch water supply pipe (4) raised in (2).
By (40), it is fixed to the slab concrete (26).

In FIGS. 1 and 2, (41) is an outer peripheral foundation, and (42)
Is a steel puller, (43) is a joist, and (44) is an inner wall material. Also,
In the sink (11), not only the branch water supply pipe (4), but also a hot water supply pipe above the floor (not shown) and a branch water supply pipe (22) below the floor are connected via a floor removal fitting (28). Further, also in the unit bath (14) and the washing surface (15), the water supply / hot water supply pipe on the upper side of the floor and the branch water supply / hot water supply pipes (4) (22) on the lower side of the floor provide floor taking out fittings (28) (28). Connected through.

As described above, the branch pipes (4) (22)... On the lower floor and the water supply pipe (34) and the hot water pipe in the water circulation equipment on the upper floor are connected to each other through the floor removal fitting (28). By
The sheath tube is unnecessary even in the flooring section.

The present invention is not limited to the above embodiment, and it goes without saying that many modifications and changes can be made to the above embodiment within the scope of the present invention.

[0026]

As described above, in the header type water supply / hot water supply pipe according to the present invention, the branch pipe below the floor and the water supply pipe or hot water supply pipe in the water supply facility above the floor are taken out from the floor by attaching them to the floor material. Since the connection is made via the metal fittings, it is not necessary to lay a sheath tube for protection or replacement of the branch tube at least in the floor material penetrating portion, thereby improving workability and economy. . In addition, since the sheath tube can be eliminated in this way, even when a water hammer occurs, the branch tube does not hit the sheath tube and does not hit the sheath tube, thereby suppressing the generation of noise. Furthermore, by using such a flooring pipe, the workability is better than that of a walling pipe that takes out a branch pipe through a wall body filled with a heat insulating material or the like.

According to the third aspect of the present invention, since the branch pipe is made of cross-linked polyethylene or polybutene, the durability is improved, there is almost no need to replace each pipe, and the sheath pipe is eliminated over the entire pipe. Thus, it is possible to further improve workability and economy, and reduce noise.

According to the fourth aspect of the present invention, since the header is installed under the floor and the branch pipes are routed under the floor, the number of times that each branch pipe needs to be raised is only one, and the piping work can be performed relatively easily. Can be.

[Brief description of the drawings]

FIG. 1 is a view showing a construction state near a sink of a header type water supply / hot water supply pipe according to one embodiment of the present invention.

FIG. 2 is a view showing a construction state near the toilet low tank.

FIG. 3 is a perspective view showing the entire water supply / hot water supply pipe.

FIG. 4 is an exploded perspective view of a floor take-out fitting.

FIG. 5 is a vertical cross-sectional view of a floor take-out fitting.

FIG. 6 is a longitudinal sectional view of a main pipe and a branch pipe.

[Explanation of symbols]

 (1) Main water supply pipe (2) Underfloor space (3) (21) Header (4) (22) Branch pipe (20) Main hot water supply pipe (28) Floor take-out fitting (34) Water supply pipe on water supply facility side (37 ) Male thread adapter (fitting)

Claims (4)

[Claims] 1. A header type water supply / hot water supply pipe which branches a main water supply pipe or a main hot water supply pipe into a plurality of branch pipes via a header, and guides these branch pipes to corresponding water circulating facilities. Connect the resin branch pipe to the floor take-out fitting attached to the floor material from below the floor, and connect the water supply pipe and hot water supply pipe of the water supply equipment,
Header type water supply, characterized in that it is connected to the floor take-out fitting from above the floor so as to communicate with the branch pipe
Hot water supply piping. 2. A floor take-out fitting is formed in a tubular shape that penetrates a floor material in a vertical direction, and a water supply pipe or a hot water supply pipe of a water circulating equipment is screwed into an upper end of the floor take-out fitting. The header type water supply / hot water supply pipe according to claim 1, wherein the branch pipe is screwed through a joint. 3. The header type water supply / hot water supply pipe according to claim 1, wherein the branch pipe is made of crosslinked polyethylene or polybutene. 4. The header type water supply / hot water supply pipe according to claim 1, wherein the header is installed under the floor, and the branch pipe is routed under the floor.