JPH0117030B2 - - Google Patents

Description

[Detailed Description of the Invention] [Technical Field] The construction method of the present invention can be applied when repairing damaged water supply pipes after long-term use, replacing pipes, or installing new pipes in buildings such as public housing and condominiums. Even if it is a building, it can be easily constructed, shortening the construction period,
The present invention relates to a new water supply pipe construction method that can reduce repair costs, and does not impair the appearance and appearance of indoor and outdoor buildings after construction, and does not reduce the real estate value of buildings.

[Conventional technology] Water supply piping for houses and other buildings usually deteriorates and rusts after 15 to 20 years after construction, depending on the age of use, causing problems with the quality of the water used (domestic water). This may cause piping to need to be replaced. By the way, in conventional construction methods, water supply pipes during the construction of a house are generally buried under the floor, etc., and are connected to stand-up faucets along the wall near the water supply point.
In many cases, water supply methods are used. Galvanized steel pipes are often used for these pipes, and over the years of use, the inside of the pipes and fittings corrode, causing the water used to contain rust, which poses a problem when used as water for domestic use. In order to prevent rusting, water pipes have been lined with hard vinyl chloride, but even with this method, the steel material itself is damaged at the joints and connections. As the pipes are exposed during water supply, rust occurs and it becomes necessary to replace the pipes, similar to the above. As mentioned above, these pipes are often buried under the floor or in the wall, so when replacing the pipes, it is necessary to either destroy the floor and wall and replace them, or install new pipes (replacement).
I have no choice but to choose between doing so.
The method of replacing pipes by tearing down floors and walls requires not only the cost of replacing the pipes itself, but also the demolition and restoration work of the same area, which takes a long time and takes a long time. In the case of buildings, each room will be temporarily unavailable (for several days).

On the other hand, when installing new piping (replacement), even if there are no inconveniences mentioned above, unless the piping is buried, the piping must be exposed. Exposed pipes with a diameter 2 to 3 times the diameter of the pipe are installed along the walls, floor, or ceiling of the room, which makes the room unattractive, especially when
This is not a desirable construction method for buildings such as houses and condominiums because it lowers their real estate value.

In other words, in the conventional exposed construction method, as shown in the cross section shown in Figures 1a and b, pipes with anti-dew construction are used, so the outside diameter of the water supply pipe (of standard size) becomes significantly thicker. Even if a cover is provided from above with a cosmetic case (see Fig. 1b), the exposed area is large, dust tends to accumulate on the same surface, it is difficult to clean, and the appearance is also unfavorable. Furthermore, since the standard size pipe protrudes 80 to 90 mm from the wall side, the pipe gets in the way, and even if you try to place furniture etc. along the wall, the back side is left wide open, which makes the room layout narrower. In condominiums, condominiums, etc., this method does not meet the needs of residents, and the development of other methods is desired.

However, in order to save on repair costs and to prevent rooms from becoming temporarily unusable, methods of replacing piping without destroying floors, walls, etc. are currently becoming mainstream.

[Purpose] Therefore, the construction method of the present invention provides a method that covers the disadvantages of the conventional exposed piping method without sacrificing the advantages of the exposed piping method currently in use. We aim to provide a construction method that allows replacement or new piping work for existing buildings or piping work associated with new construction to be carried out economically and efficiently in a short construction period, without damaging the exterior appearance or space. It is something.

[Structure] The construction method of the present invention, when replacing piping to water supply points in buildings such as houses, creates a pipe bundle in which the sum of the water supply volumes of multiple water supply pipes is equal to the water supply volume of one water supply pipe of conventional equipment. , collective piping material embedded and molded in a heat insulating material with a rectangular or square external shape, 2-way to 4-way joints each having a plurality of corresponding joints on one side, and multiple joints on one side, etc. On the side, joints with a single joining part that integrates these are used as basic piping materials, and the wall partitions, baseboards, lintels, long presses, etc. in each room leading to the water supply point are removed and used as the base material for stopping them. The present invention relates to a water supply piping construction method for buildings such as public housing, which is characterized in that exposed piping is installed alongside or along each of the above-mentioned members.

[Example] An example of the construction method of the present invention will be described below with reference to the accompanying drawings.

Figure 2 shows the basic piping members (hereinafter referred to as basic pipe materials) 1 used in the construction method of the present invention.
In this embodiment, the water supply cross-sectional area of the conventional piping P1 is divided into four, and the pipes are arranged vertically, and Figure A is a perspective view, and Figures B and C are cross-sectional views thereof. In the figure, P2 is a water supply pipe, and 2 is a heat insulating material made of, for example, foamed plastic material, which buries the pipe P2 to ensure the mutual position of the water supply pipe P2, and also functions as a dew-proof coating and molding. Reference numeral 3 denotes an exterior material made of heat insulating material, such as a decorative case made of a plastic board. In figure b, the exterior material 3 seamlessly covers all four circumferences of the insulation material, protects the insulation material 2, which is the basic pipe material, from the environment, and is also coated with, for example, a grain pattern on the surface, fine irregularities, or coloring. etc., to have a decorative effect and a surface that is compatible with the construction environment. The length L of the basic pipe material is 4 m, 6 m, and 8 m as the basic types. In addition, water supply pipe P2
As the material, a stainless steel pipe may be used.

FIG. 2c shows the exterior material 3 of the basic tube material 1 in which plastic plates having a U-shaped cross section are assembled facing each other to simplify the manufacturing process.
In this case, the decorative case can be replaced if necessary, and it is also possible to cover the exposed head of the fixed member after piping material 1 is piped.Also, it is possible to select a decorative case that is suitable for the environment of the piping location. You can also replace it by doing so.

Fig. 3 schematically explains the relationship between the basic pipe material 1 used in the construction method of the present invention and the conventional indoor piping P1. This proves that the water supply amount is equal to the water supply amount. In other words, since the inner diameter of a typical indoor pipe P1 is 21 mmφ and its cross-sectional area is 346 mm ² ,
By dividing this into four pipes with an inner diameter of 12 mm and having a cross-sectional area of about 86 mm ² , we installed four pipes in parallel, each with an inner diameter of 12 mm, to ensure the same amount of water as conventional indoor piping, while also
If they are lined up in tiers and buried in the insulation material 2, and the outside is covered with a plastic decorative board 3, the external dimensions will be at most l ₂ = 35 to 36 mm and l ₃ = 108 to 110 mm, which is compared to conventional It can be seen that the thickness can be reduced to 1/2 or less compared to the case where the pipe P1 is covered with a dew-proof coating and l ₁ =80 to 90 mm.

The piping construction method of the present invention mainly consists of the above-mentioned basic pipe material 1.
This is achieved by skillfully constructing the target.

Figures 4 to 12 are perspective views of typical accessories used in the construction method of the present invention. Figures 4 and 5 are faucets, and P is a vertical four-tiered pipe. Pl is a plug for conventional piping holes, and can be effectively used for all connection holes of the above-mentioned accessories. Fig. 6 shows a connecting joint (sleeve), and Fig. 7 shows a corner elbow. , Fig. 8 shows an elbow, Fig. 9 shows a T-shaped bent cheese, and Figs. 10 to 12 show a joint between conventional piping and the basic piping 1 of the present invention. The thickness l ₂ and width l ₃ are the same.

Figure 13 shows a conceptual diagram of the piping construction method of the present invention, in which figure a shows a case where the existing aging water supply equipment is replaced with piping by adopting the conventional exposed construction method, and the downstream side from arrow R is This is a pipe that requires renovation, and the flow path indicated by the dotted line is the pipe 4 that was in place from the time of construction.
All of these pipes are buried under the floor 5 or in the wall 6 until they reach the water supply equipment. P
1 is a pipe with the same diameter as the conventionally used water supply pipe, and the surrounding area is covered with a heat insulating material 2 to prevent condensation, and the pipe is replaced separately from the original flow path. Since the piping is exposed on the inside wall of the building, there is no need for major construction work such as tearing down the floor or wall and replacing the old piping, which takes a long time. It is not possible to escape from the above-mentioned disadvantages due to the fact that the wall is provided along the wall side.

However, if the construction method of the present invention is implemented as shown in Fig. c, the exposed piping P1 with anti-condensation coating 2 in Fig. a is replaced with thin, wide basic pipe material 1, and Various types of joints as illustrated in Figures 4 to 12 can be combined to connect with conventional piping and water supply equipment, so in this example construction method, ( b) By making the cross-sectional shape of the basic pipe material 1 rectangular (l ₂ ×l ₃ ), it fits well architecturally and has a natural fit, making it possible to carry out piping work that meets the needs of the user.

(b) No or minimal demolishing of floors and walls.

(c) Even if there is work to remove parting materials, etc., only a small portion is required, which is minimal compared to other piping work.

(d) The piping has a round cross section and is not thick, so it looks good.

(E) Exterior decoration is possible and finishes that match the atmosphere of the room used (wood grain wallpaper, painting in the same color as the wallpaper, etc.)
Can be done.

(F) Piping work can be carried out easily and efficiently because construction can be carried out along the existing room's parting, long push-in, or lintel, or along the underlying material.

(g) Since the cross section is rectangular, there is little or no protrusion on the wall surface, so living furniture fits well against the wall.

(H) If this construction method is adopted from the beginning of construction, it will not only improve the design, but also the fit and fit, and the pipe replacement work can be carried out easily.

While fully securing the advantages of conventional exposed piping construction, it is possible to eliminate the conventional disadvantages of this method to virtually zero.

What is shown in Figures 14a and 14b is one specific example, and Figure a is a diagram of the current state of the room before piping. The tree, 11 is the floor, and 12 is the joist. Figure b is a piping diagram of the same part after construction using the method of the present invention, in which the elongated support member 7 is removed and piping is installed at that position with the wide side of the pipe member 1 aligned with the base material 8. Since the inside of the basic pipe material 1 is made of foamed plastic, the water pipe section can be removed and fixed to the base material 8 with nails or wood screws.In that case, if necessary, after constructing the decorative case, By adhering to the tube material, it is possible to have an appearance that is almost the same as a conventionally provided long press, and it is also possible to hide the head of the fixing member.

In addition, if the baseboard 10 is removed and the pipe material 1 is installed in that position, its cross section and external shape are almost similar to the baseboard used in conventional construction, so if you pay attention to the exterior, you can The appearance is almost the same as when the baseboard 10 is provided.

For these installations, the distance and other dimensions of the piping are measured, the basic pipe material 1 is cut, and the connections are made using hard PVC water pipe adhesive (Japanese Water Supply Standard Product A = JWWAS-).
101-1967). Fixing to the wall or floor
Use wood screws like those mentioned earlier, and use a plumbing ruler to measure the fixing screws so as not to break the water supply pipe inside the pipe case. When installing accessories, it is desirable to mark the surface of the accessory in advance to specify the hole position for the mounting bracket.

As described above, when using the construction method of the present invention, the scope of changing the room features for piping replacement is extremely small, the construction work is easy, and the construction period can be shortened. The exterior appearance will fit in with the structure of the existing room and will not be unsightly, so even after the piping replacement work has been completed, there is no risk of reducing the so-called real estate value of the building.

Figures 15a and 15b are also another specific example of the construction method of the present invention, and in this case, the target area is Japan.
Tatami 13 is laid on the floorboards. In the figure, 7-2
8 is the wall parting, 8 is the base material, and 10-2 is the baseboard. In this case, a is a diagram of the current condition before piping, and b is a diagram of piping after construction.The construction of the baseboard part is a little more complicated than in the case shown in Figure 14, but in terms of function and effect, There is nothing different about that.

Fig. 16 is a cross-sectional perspective view showing the piping method at the intersection of the basic pipe material 1 and the sill 14 according to the construction method of the present invention; role items such as
XII can be applied, and if the piping shown in b is used, it is also possible to connect four elbows shown in Fig. 8 for each pipe.

FIG. 17 is a partially cutaway perspective view showing a state in which the pipe material 1 and the like are connected to the piping according to the method of the present invention.

In the above case, all the accessories have been explained as being of the type in which the water supply pipe P2 is inserted into the hole, but in this case, as shown in the second diagram, in order to expose the pipe P2 from the end surface of the basic pipe material 1 in contact with the joint. , it takes time and effort to remove the covering material.

Therefore, if the insertion pipe member of the pipe P2 is made to protrude around each hole on the accessory side, the end face of the basic pipe material 1 can be connected to the joint by simply cutting it. At this time, the insertion tube member is of course pushed into the basic tube material 1, but since the corresponding part of the basic tube material is made of foamed plastic and is highly elastic, the two can be connected without much resistance.

[Effects] The construction method of the present invention is as described above, and by making the overall cross-sectional shape of the basic pipe material rectangular and using fittings that are compatible with these shapes, the piping according to the present method can be made to fit architecturally. The fit is natural, and even if the piping is exposed, there is little or no protrusion from the wall, and the reduction in living space caused by the piping can be minimized.

In addition, since the cross section of the piping is rectangular, the exterior of the pipe can be decorated to match the atmosphere of the room, and construction can be carried out along the existing room's partings, lintels, or lintels, or along the base material of these, making it possible to create other Compared to plumbing work, there is less work to remove floors and wall materials,
Plumbing work can be done efficiently and in a short period of time, and there is no risk of reducing the property value of the building due to pipe repair.

The construction method of the present invention is not only suitable for pipe replacement work for conventional equipment, but if used when constructing a new building, it will not only improve the design, but also improve the fit and fit. There are many benefits, such as shortening the construction period for water supply equipment, making it easier to repair at a later date, and reducing construction costs.

[Brief explanation of drawings]

Figure 1 shows a cross-sectional view of a water supply pipe with a dew-proof coating used in the conventional exposed piping method.
Fig. 2 shows the case where the round pipe is fixed to the wall as it is, Fig. 2 shows the case where the top is covered with a decorative case, Fig. 2 shows the basic pipe material used in the piping method of the present invention, and Fig. 2 shows the case in perspective. Figures b and c are cross-sectional views, each with a different covering structure of the decorative laminate, Figure 3 is an explanatory diagram of the characteristics of the basic pipe material shown in Figure 2, and Figures 4 to 12 are the main pipe materials. Figure 13 is a perspective view of a typical accessory used in the invention piping construction method, and is a conceptual diagram of the invention construction method. , FIG. 14, and FIG. 15 are sectional views of main parts illustrating the case where indoor piping is constructed by the construction method of the present invention, in which a shows the current condition before piping, and FIG. 15 shows a diagram of the piping by the construction method of the present invention. Figures 16a and b are
FIG. 17 is a piping perspective view of the portion where the basic pipe material and the sill intersect according to the construction method of the present invention. FIG. 1...basic pipe material, 2...insulation material, 3...exterior material, P1...conventional indoor water supply pipe, P2...water supply pipe constituting the basic pipe material, l ₂ ...thickness of the basic pipe material,
l ₃ ...Width of basic pipe material.

Claims (1)

[Scope of Claims] 1. When replacing piping to a water supply point in a building such as a house, a bundle of pipes in which the sum of the water supply volume of multiple water supply pipes is equal to the water supply volume of one water supply pipe of conventional equipment, Collective piping material embedded and molded in insulation with a rectangular or square external shape, two-way to four-way joints, etc. with multiple corresponding joints on each side, and multiple joints on one side and the other side. In order to do this, we use joints with a single joint that integrates all of these parts as the basic piping material, remove the wall partitions, baseboards, lintels, long pushpieces, etc. in each room leading to the water supply point, and install them along the base material. A method of constructing water supply piping for buildings such as public housing, characterized by installing exposed piping along the above-mentioned members. 2. A water supply piping construction method for buildings such as public housing as set forth in claim 1, which uses stainless steel pipes as the material of the water supply pipes. 3. Claims 1 or 2 characterized in that the construction is performed when constructing water supply equipment during building construction.
Drainage pipe construction method for buildings such as public housing as described in Section 1.