JP4750224B1 - Renewal method for water and hot water pipes in houses - Google Patents

Abstract

【Task】
The renewal method for water and hot water pipes in the house disclosed is that the aesthetics of the house after construction will not be impaired in the construction to replace the metal water and hot water pipes with resin water and hot water pipes, and the residents Inconvenience.
[Solution]
The renewal method for the water and hot water pipes in the house to be disclosed is the process of forming an opening on the floor surface, and the resin water and hot water pipes are entered from the opening to the floor under the floor of each water inlet provided in the house. A process of laying, a process of passing a resin water / hot water pipe from the bottom under the water inlet to the floor, a process of closing a tap of a water meter related to a house, and a metal connected to each water inlet A step of removing the water / hot water pipes from each water supply port, a step of connecting the resin water / hot water pipes placed on the floor in the pipe connection step to each water supply port from which the metal water / hot water pipes are removed, and a metal A step of disconnecting the water supply / hot water supply pipe from the water meter and connecting the water supply / hot water supply pipe made of resin to the water meter, and a step of opening the plug of the water meter.
[Selection] Figure 1

Description

  The present invention relates to a technique of a construction method for replacing a metal water / hot water pipe disposed under a floor of a house, particularly a detached house, with a resin water / hot water pipe.

  Residential facilities such as roofs, outer walls, interiors, under-floor water and hot water pipes have a certain useful life, and it is necessary to repair and renovate the relevant parts every time the useful life comes from construction. Under such circumstances, various research and development have been carried out in the home renovation work, taking into account the needs of residents, such as changing the floor plan, securing the residence during construction, and construction costs. For example, the technologies described in Patent Document 1 and Patent Document 2 are disclosed as related to renovation work.

  On the other hand, as a renovation work for residential water supply facilities, we will replace (replace) the metal water / hot water pipes, which may be leaching of harmful substances, with resin water / hot water pipes such as highly safe cross-linked polyethylene pipes. There is water supply, hot water supply pipe renewal construction.

  Conventionally, in water supply / hot water supply pipe renewal construction, partial renovation work that replaces only defective parts such as water leaks due to breakage of old pipes, exposed renovation that leaves newly laid pipes exposed in the house The mainstream is construction and opening replacement work that involves replacing large-scale housing equipment such as bathroom equipment.

JP 2002-173961 A JP 2008-196149 A

However, there is a problem in the above-mentioned partial renovation work that metal water and hot water pipes, which may cause leaching of harmful substances, remain in the house, and residents may continue to suffer health damage after the work. There was. In addition, the metal water / hot water pipes remaining in the house may cause condensation to corrode the pillars and foundations that are the structural parts of the wooden house, resulting in a large-scale repair of the house.
In addition, the above-described exposure repair work has a problem in that the beauty of the interior of the house is impaired because water and hot water pipes are exposed in the living space.

  Furthermore, the above opening replacement work requires a large-scale construction, and there is a problem that a resident is inconvenient for continuing daily life, or that daily life needs to be interrupted during construction. It was.

  Therefore, in view of the above-mentioned problems, the present invention does not impair the aesthetics of the home after the construction in the construction for renewing all the water supply and hot water pipes in the home, and does not inconvenience the residents during the construction. It aims at providing the renewal construction method of a hot water pipe.

  One form of the renewal method of the water supply / hot water pipe in the house to be disclosed is an opening process for forming an opening on the floor surface in the house, and an operator enters the floor from the opening and is provided in the house. A new pipe laying process for laying a resin water / hot water pipe under the floor of the water inlet, a pipe passing process for passing the resin water / hot water pipe from the floor below the water inlet to the floor, and the housing Closing process for closing the stopper of the water meter, old pipe replacement process for removing the metal water / hot water pipes connected to the respective water supply ports from the respective water supply ports, and the above-mentioned pipes placed on the floor in the pipe connection process A new pipe connection step for connecting a resin water / hot water pipe to each water inlet from which the metal water / hot water pipe has been removed, and a connection between the metal water / hot water pipe and the water meter. Unscrewing, connecting the water supply / hot water supply pipe made of resin to the water meter, and the water meter Of including a cap removal step of opening the stopper, and the old tube removal step of removing the said metal of the water supply and hot water supply pipes are pipes under the floor, the.

  The renewal method for the water supply / hot water pipes in the house disclosed does not impair the aesthetics of the house after construction in the construction of replacing metal water / hot water pipes with resin water / hot water pipes. Inconvenience.

It is a flowchart for demonstrating the flow of the renewal construction method of the water supply and hot water pipe in a house which concerns on this Embodiment. It is a figure which shows an example of the floor plan of the house which concerns on this Embodiment. It is a figure which shows an example of the opening part which concerns on this Embodiment. It is a figure which shows an example of the storage container of the underfloor storage part which concerns on this Embodiment. It is a figure for demonstrating the new pipe laying process which concerns on this Embodiment. It is a figure for demonstrating the pipe-passing process which concerns on this Embodiment. It is a figure for demonstrating the plug-closing process, water meter connection process, and plug-opening process which concern on this Embodiment. It is a figure for demonstrating the old pipe replacement | exchange process and new pipe connection process which concern on this Embodiment. It is a figure for demonstrating the old pipe removal process which concerns on this Embodiment.

  DESCRIPTION OF EMBODIMENTS Embodiments for carrying out the present invention will be described with reference to the drawings. With reference to FIG. 1, a renewal method (hereinafter simply referred to as “renewal method”) 1 for a house water / hot water pipe according to the present embodiment will be described. FIG. 1 is a flowchart for explaining the flow of the update method 1.

  The renewal method 1 is a construction method in which the metal water / hot water pipe 90 disposed under the floor of a detached house as shown in FIG. 2 is replaced (updated) with a resin water / hot water pipe 30. is there. Here, the metal water supply / hot water supply pipe 90 is a steel pipe, a lining steel pipe, a copper pipe, a lead pipe, and the like, and when these pipes are corroded, the harmful substances are dissolved in the water supplied in the house, There is a risk of damaging the health of residents who drink water. On the other hand, the water supply / hot water supply pipe 30 made of resin is a pipe made of a non-metal material such as a cross-linked polyethylene pipe, a polybutene pipe, a vinyl chloride pipe, an impact-resistant hard polyvinyl chloride pipe (HIVP), and is flexible. In addition to being excellent in performance, there is no risk of corrosion of the pipes, and therefore no harmful substances are contained in the water supplied to the occupants. Therefore, the resin water / hot water pipe 30 is a water / hot water pipe for supplying safe and safe water for the resident.

  Hereinafter, an example in which the renewal method 1 is applied to a detached house will be described. However, the renewal method 1 can also be applied to an apartment house such as an apartment or an apartment. In addition, from the viewpoint of convenience and aesthetics, the water supply / hot water pipe is often piped under the floor, so the renewal method 1 is also a method of piping the water / hot water pipe under the floor.

  As shown in FIG. 1, the renewal method 1 includes an opening process (S10), a new pipe laying process (S20), an upper floor laying process (S30), a pipe passing process (S40), a plugging process (S50), and an old pipe replacement. A process (S60), a new pipe connection process (S70), a water meter connection process (S80), a capping process (S90), and an old pipe removal process (S100) are included.

  In the opening process of S10, as shown in FIG. 3, the opening part 10 is formed in the floor surface in a house. As shown in FIG. 4, when the underfloor storage unit is provided in advance in the construction target house, in the opening process, the storage container 20 provided in the underfloor storage unit is removed to form an opening on the floor surface. Also, if the house under construction does not have an underfloor storage unit, the opening process will form an opening as part of the work to newly install the underfloor storage unit on the floor, and the construction will be completed by the renewal method 1 Thereafter, the opening is used as a storage unit under the floor.

  In the new pipe laying process of S20, a worker enters the floor of the house (submerges) through the opening formed in S10, and the resin-made water / hot water pipe 30 extends to the underfloor part of all the water inlets provided in the house. Is laid under the floor. As shown in FIG. 5, in the new pipe laying process, for example, a header is introduced and installed under the floor from the opening, and the resin water / hot water pipe 30 connected to the header is connected to the water supply port 40 and the washstand in the bathroom. The water supply port 50, the water supply port 60 of a washing machine (waterproof pan for installing a washing machine), the water supply port 70 of the kitchen, and the water supply port 80 of the toilet are laid along the structure under the floor. However, in the new pipe laying process, the water supply / hot water supply pipe 30 made of resin may be laid under the floor by using the pre-branch method instead of the header method as described above.

  In the upper floor laying process of S30, the water supply / hot water pipe 30 made of resin is placed on the upper floor (second floor) along the back of the wall where there is no bracing in a room (for example, a washroom and a toilet) provided with the first floor washroom facilities. ), And lay the pipe up to the bottom floor of the water inlet, just like the first floor. In the upper floor laying process, the pipe water is used to pull up the resin water / hot water pipe 30 to the upper floor (second floor), and the pipe is laid down to the lower floor portion of the water inlet as in the first floor. It is also good. Furthermore, if there is no straight wall and there is no pipe space, in the upper floor laying process, along the inconspicuous place in the house, such as the corner of the room, the resin water / hot water pipe 30 is placed on the upper floor (second floor). The resin water supply / hot water supply pipe 30 may be covered and covered (so-called blindfolded).

  In the pipe connection process of S40, as shown in FIG. 6, the resin water / hot water supply pipe 30 laid down to the floor of the water supply port in S30 is passed from the floor under the floor toward the water supply port. In the renewal method 1, the connection of the resin water / hot water pipe 30 to the water inlet is in principle a floor connection. This is because the construction is easy and the maintenance after construction is easy. In addition, in FIG.6, 8 and 9, the water supply port 70 of the kitchen is illustrated.

  In the closing process of S50, as shown in FIG. 7, the faucet 110 provided in the primary side pipe of the water meter (water meter) 100 is closed. Through this process, the supply of water to the target housing is stopped. This makes it possible to replace the old and new pipes as described below.

  Next, as shown in FIG. 8, in the old pipe replacement process of S60, the metal water / hot water pipe 90 connected to each water supply port 40, 50, 60, 70, 80 is removed, and a new pipe of S70 is obtained. In the connecting step, resin water supply / hot water supply pipes 30 are connected to the respective water supply ports 40, 50, 60, 70, 80.

  In the water meter connection step of S80, as shown in FIG. 7, the header (secondary side pipe) connected to the resin water / hot water pipe 30 and the water meter 100 are connected. For example, in the water meter connection process, a hole (32φ) for passing a resin water / hot water pipe 30 through the outside of the house foundation is opened, and the resin water / hot water pipe 30 connected to the header is inserted through the hole. Derived outside the house and connected to the water meter 100. By this step, each water supply port in the construction target house is connected to a so-called water supply (primary side pipe), and water supply to the house becomes possible. In addition, you may implement the process of S60 and S70, and the process of S80, replacing construction order.

  In the opening process of S90, the faucet 110 shown in FIG. 7 is opened, and the supply of water to the house is started. It is good also as a form which performs the test for checking whether water supply is supplied with the appropriate water pressure in a house after opening the faucet 110.

  In the old pipe removal process of S100, as shown in FIG. 9, the exposed portion in the house of the metal water / hot water pipe 90 that has been connected to the water supply port in the past is closed, and the appearance is not conspicuous. By doing this, the situation that damages the beauty of the house is eliminated as much as possible. Further, in the old pipe removing step, the metal water / hot water pipe 90 conventionally disposed under the floor is cut and removed. By carrying out like this, after the completion of the construction by the renewal construction method 1, the movable region of the worker under the floor is expanded and secured, and the ease of construction such as maintenance work can be improved.

  As described above, when the renewal construction method 1 including the steps of S10 to S100 is applied, in the home renovation work in which the metal water / hot water pipe 90 is renewed to the resin water / hot water pipe 30, piping is performed under the floor, Because the old pipe is removed, the aesthetics of the house after construction will not be damaged. In addition, the renewal method 1 does not inconvenience the residents during construction because the work amount from closing the water meter 100 to opening it is small and the construction period can be shortened.

  Here, S10 thru | or S40 process is performed by the 1st day or the 2nd day, and the water supply under construction is utilized by performing the process after S50 on the 2nd day or the 3rd day with a comparatively short working time. The time when this is not possible is greatly shortened, and the convenience of the residents of the construction target house can be greatly improved.

  In addition, the renewal method 1 connects the resin water / hot water pipe 30 connected to the header to the input side of the water heater installed outdoors through a hole (65φ) opened on the outside of the house foundation. It is good also as a form including the process of connecting the resin-made water supply / hot-water supply pipe | tube 30 connected to the output side of the said outdoor water heater with a header.

  Although the embodiment of the present invention has been described in detail above, the present invention is not limited to the specific embodiment, and various modifications are possible within the scope of the gist of the present invention described in the claims.・ Change is possible.

1 Renewal method for water and hot water pipes in a house 10 Opening 20 Storage container 30 (under the floor storage part) Resin water and hot water pipes (newly laid water and hot water pipes: new pipes)
40 Water supply port in the bathroom 50 Water supply port in the washroom 60 Water supply port in the laundry area 70 Water supply port in the kitchen 80 Water supply port in the toilet 90 Metal water / hot water pipes (water / hot water pipes to be removed: old pipes)
100 water meter (water meter)
110 Water faucet faucet (water faucet installed on the primary pipe)

Claims (6)

In the renewal method of water supply and hot water pipes in a house where metal water and hot water pipes installed in wooden detached houses are replaced with resin water and hot water pipes,
An opening process for forming an opening on the floor in the house;
Worker enters under the floor from the opening, and the new pipe laying step for laying a water supply and hot water supply pipe made of the resin to the floor of the water supply port provided in said housing,
From the floor below each water supply port to the floor, a pipe passing step for penetrating the resin water / hot water pipe through the floor surface;
A capping step of closing a tap of a water meter for supplying water to the house;
And the old pipe replacement process for removing the metallic water-supply pipe, wherein connected to each water supply port from the respective water inlet,
A new pipe connection step for connecting the resin water / hot water pipes placed on the floor in the pipe connection step to the respective water supply ports from which the metal water / hot water pipes have been removed;
Disconnecting the metal water / hot water pipe and the water meter, and connecting the resin water / hot water pipe to the water meter connecting step,
An opening step for opening the water meter;
An old pipe removing process for removing the metal water / hot water pipes piped under the floor, and a renewal method of the water / hot water pipe in the house ,
In the opening step, a renewal method for a water supply / hot water supply pipe in a house, wherein a new underfloor storage section is provided which is installed under the floor and stores stock items for daily life. 2. The water supply in a house according to claim 1 , wherein in the new pipe laying step, a header is carried under the floor from the opening, and the resin water / hot water pipe connected to the header is laid.・ Renewal method of hot water supply pipe. The water meter connection step connects the water meter to the header to which the resin water / hot water pipe laid under the floor in the new pipe laying step is connected. Renewal method for water supply and hot water pipes in the house as described in 2 . An upper floor laying step of laying the resin water / hot water pipe on the upper floor along the backside of the room where the washroom facilities in the house are provided, or using existing pipe space The renewal method for a water supply / hot water supply pipe in a house according to any one of claims 1 to 3 , further comprising: In the said old pipe removal process, it processes so that the exposed part in the house of the said metal water supply and hot water supply pipe may not be conspicuous, The water supply / hot water supply in a house as described in any one of Claim 1 thru | or 4 Pipe renewal method. The metal water / hot water supply pipe is any one of a steel pipe, a lining steel pipe, a copper pipe and a lead pipe, and the resin water / hot water supply pipe is any one of a crosslinked polyethylene pipe, a vinyl chloride pipe and a polybutene pipe. The renewal construction method for a water supply / hot water pipe in a house according to any one of claims 1 to 5 .

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