JPH11158950A - Installation of piping - Google Patents

Abstract

PROBLEM TO BE SOLVED: To easily and economically install piping and facilitate the inspection and maintenance of the piping after installation by radially fitting a plurality of joints at the external side wall of a ring-shaped distribution device connected to a main pipe for supplying water and hot water and connecting a flexible resinous pipe to the end of the joints. SOLUTION: When a plurality of pipes 13, 13,... are connected to a distributor 12 jointed to a main pipe 11 for water and hot water supply to install pipes for water and hot water supply, the distributor 12 with a ring-shaped appearance, made of a metallic material, a resinous material resin, etc., is arranged. A plurality of joints 10, 10,... radially extended outward from the center of the ring-shaped distributor 12 are fitted to the external side wall of the distibutor 12, and flexible resinous pipes 13 such as crosslinked polyethylene pipes are connected to the end of the joints 10 to attach terminal delivery faucets 14 for supplying water and hot water. And further, an openable/closable inspection opening to inspect water leakage between the joints 10 and the pipes 13 is provided at the indoor side of a position where the distributor is disposed.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a method for laying piping. More specifically, a flexible resin pipe (hereinafter, may be simply referred to as a “resin pipe”) for water supply and hot water supply used in a building such as a detached house, an apartment house, a commercial building, or a hotel. When laying in a place, distribution can be performed without restriction on the connection direction of the supply destination pipe, the length of the entire resin pipe is shortened as much as possible, inspection for water leakage of the joint part after laying,
The present invention relates to a method of laying piping that is easy to inspect and maintain.

[0002]

2. Description of the Related Art Conventionally, resin pipes are widely used for water supply and hot water supply in general houses, apartment houses, commercial buildings or hotels from the viewpoint of corrosion resistance, earthquake resistance, hygiene, renewability, workability, and the like. It has been adopted. Japanese Patent Application Laid-Open No. Hei 3
As described in JP-A-292487 and JP-A-7-197495, this resin pipe is inserted into a sheath to protect it, and a plurality of pipes are connected and laid to a header for water / hot water supply. Methods have been proposed.

According to the methods described in these publications, it is necessary to keep the direction in which a plurality of pipes (branches) are connected to a water supply / hot water supply header connected to the main pipe constant. FIG.
2 is a schematic plan view showing a state in which a plurality of pipes are connected to a conventional header. In FIG. 6, reference numeral 61 denotes a main pipe, 62 denotes a header, 63 denotes a pipe (branch pipe), and 64 denotes an end discharge faucet for water supply / hot water supply.

[0004] The header is connected to a plurality of pipes (branches), and each dedicated pipe is connected to a place where water or hot water is used, such as a kitchen, a washing machine, a bathroom, a lavatory, a toilet, and a shower room. In the case of supplying water and hot water at the same time, when guiding the pipe to the opposite side across the header, as shown in FIG. 6, the pipe is bent to a predetermined position for water supply / hot water supply (water supply / hot water supply end). Discharge faucet). For this reason, the length of the entire pipe becomes extremely long, which not only complicates the laying work but also has a disadvantage that it is economically disadvantageous.

[0005] When water is supplied or hot water is supplied to a place of use using individual headers by using a header, a method described in Japanese Patent Application Laid-Open No. 5-172287 has been proposed for the purpose of shortening the entire length of the pipes. ing. According to this proposed method,
A plurality of branch pipes are dispersed and connected to the main pipe.
However, according to this method, it is necessary to perform each branch pipe individually to inspect the water pressure of the branch pipe connected to the main pipe, check the water tightness, and repair any leaks. was there.

[0006]

Under such circumstances, the present inventors have made intensive studies to complete the present invention as a result of providing a method of laying piping which at once has solved the above-mentioned drawbacks of the prior art. Things. The objects of the present invention are as follows. 1. An object of the present invention is to provide a pipe laying method in which the length of the entire pipe is not extremely long as compared with a case where pipes (branches) are laid by a header method, and the laying operation is simple. 2. An object of the present invention is to provide an economically advantageous method of laying a pipe, in which the entire length of the pipe is not extremely long. 3. To provide a pipe laying method that allows easy inspection, inspection, and maintenance of pipes after laying.

[0007]

In order to solve the above problems, according to the present invention, a plurality of pipes are connected to a distribution device connected to a main pipe for water supply and hot water supply to lay pipes for water supply and hot water supply. In this case, a distributing device having a ring-shaped appearance is arranged, and a plurality of connecting joints are attached to the outer ring wall of the ring-shaped distributing device by extending radially outward from the center of the ring-shaped distributing device. Connecting a flexible resin pipe to the end of the connection joint.
Provided is a method for laying pipes for hot water supply.

Further, according to the present invention, when a plurality of pipes are connected to a distribution apparatus connected to a main pipe for supplying water or hot water to lay pipes for supplying water or hot water, a distribution apparatus having a disk-shaped appearance is used. And a plurality of connecting joints are mounted on the outer wall of the disc of the disc-shaped dispensing device so as to extend radially outward from the center of the disc-shaped dispensing device. Connecting flexible resin piping,
Provide a method of laying pipes for water supply and hot water supply.

[0009]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below in detail.
In the method of the present invention, the main pipe refers to a pipe for guiding the water from the main pipe of the water supply to the distribution apparatus, and usually has a larger diameter than a resin pipe connected to another connection joint attached to the distribution apparatus. A meter box is installed on the water supply / hot water supply side of the main pipe, or a water heater (warmer) is arranged in the case of a hot water supply pipe. The connection joint is a connection joint attached to the distribution device for guiding water or hot water to a water supply / hot water supply / discharge faucet at a predetermined location. The dispensing device may have a ring-shaped appearance (a donut shape, which may also be referred to as a "ring-shaped header"; see FIG. 2 for details), or a disc-shaped (referred to as a "disk-shaped header"). For details, see FIG. 4 described below).

In the distributor, a plurality of connection joints are arranged on a ring-shaped outer wall or a disk outer wall. A resin pipe that guides water or hot water to a water supply / hot water supply faucet at a predetermined location is connected to the connection joint. This connecting joint extends radially outward from the center of the ring or disc,
They are arranged at almost the same angle. For example, in the case of arranging five joints (six including the joint with the main pipe), the angle of the central axis of the connection joint adjacent to each other is set to 60 degrees, and in the case of arranging eight joints, The angle of the central axis of the connection joints adjacent to each other is 45 degrees.

The diameter of the pipe having a circular cross section forming the ring varies depending on the type of the building on which the ring is laid and the place where the terminal plug is arranged, but can be selected in the range of 10 mm to 30 mm. The diameter of the ring or disk depends on where it is laid and the number of connecting joints placed on it, but
You can choose from 0mm to 250mm.

The connecting joints arranged in the distribution device preferably have a larger diameter for connecting to the main pipe and a smaller diameter for the remaining connecting joints. The connection joint may have a structure in which a female screw is carved on the inner wall surface so that a connection member holding an end of the flexible resin tube can be screwed into the connection joint, or JIS K 6770 or JIS K6.
779 or the like.

The material of the distribution device may be any of a metal material, a resin material and the like. When the distribution device is made of a metal material, the connecting joints are also preferably made of a metal material, and are preferably attached to the ring-shaped outer wall or the outer wall of the disk by welding. When the distribution device is made of a resin material, it can be manufactured by molding a plurality of divided parts by an injection molding method and bonding the parts using a heat fusion method or an adhesive. Note that the plurality of predetermined locations to which water or hot water is guided means a kitchen, a washing machine, a bathroom, a washroom, a toilet, a shower room, and the like.

Examples of the resin pipe which can be connected as a branch pipe to the connection joint include a crosslinked polyethylene pipe, a polybutene pipe, a polyvinyl chloride pipe, a polyethylene pipe, and a polypropylene pipe. The type of the resin pipe may be selected depending on the supply location, and the diameter of the resin pipe may be selected according to the size of the diameter of the connection portion of the branch joint. Among them, a crosslinked polyethylene pipe and a polybutene pipe are preferable.

The main pipe and the resin pipe may be covered and protected with a sheath pipe, a cushioning material, or the like, and the branch joint may be covered with a cover. The sheath tube is preferably a tube that can be coiled, such as a corrugated tube or a bellows tube. Materials such as corrugated tubes and bellows tubes include polyvinyl chloride, polyethylene, polypropylene, polycarbonate, polyamides and the like. Examples of the cushioning material include foamed resin tapes such as foamed polystyrene and foamed polyethylene, laminated tapes of foamed resin and film, laminated tapes of foamed resin and metal foil, and films of foamed resin and metal deposited. A laminated tape or the like is preferable, and examples of the cover include a resin molded product and a metal cover.

When laying water supply / hot water supply pipes according to the method of the present invention, first, the size of the distribution device connected to the main pipe is selected in accordance with the design drawing of the place where the water supply / hot water supply is to be laid, and the terminal water supply / hot water supply discharge faucet is selected. The same number of fittings are installed to select the dispensing device. Note that a distribution device having a large number of connection joints may be selected, and the extra joints may be closed with stoppers. The selected dispensing device is carried into the laying place, connected to the main pipe, a resin pipe is connected to the connection joint, and the resin pipe is guided to a predetermined place to complete the laying operation.

The distribution device is placed on a floor,
It is installed in the space of a wall, behind a ceiling, etc., and the dispensers thus installed are housed in one inspection port. The place where the distributing device is arranged is preferably between the slab and the surface floorboard in a concrete building, and between the joists on the floor surface of a wooden building, and is disposed immediately below the floorboard. Select appropriate for the type of building, such as placing it in contact with wood slides, plywood, lathboard, etc. between studs on the wall, and placing it on the ceiling floor when behind the ceiling Can be.

An openable and closable inspection port is provided on the indoor side of the distribution device disposed on the floor surface, the space in the wall, the back of the ceiling, and the like. The inspection opening is used to check the water tightness of the distribution device after laying it and to repair it if there is water leakage, so that if you open it, you can observe the entire connection joint attached to the distribution device. To place. The size of the inspection port can be changed according to the diameter of the branching device and the length of the connection joint, and the structure is such as openable square flat plate, circular flat plate, single door type, double door type, slide type, etc. Can be appropriately selected according to the conditions. Among them, a rectangular flat plate and a circular flat plate are preferable.

The method of the present invention is effective when laying water supply / hot water supply pipes and drainage pipes used for buildings such as detached houses, apartment houses, commercial buildings or hotels. According to the method of the present invention, there is no need to align and connect the branch pipes in a fixed direction as in the conventional "header method" shown in FIG. 6, and the pipe is connected in the direction in which the connection joint is attached. And so on. Therefore, unlike the “header method”, it is not necessary to lay the branch pipe in a detour direction, and the entire length of the resin pipe does not become extremely long. It can be said that the method.

[0019]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below in detail with reference to the drawings, but the present invention is not limited to the following description unless it departs from the gist.

FIG. 1 is a schematic plan view showing an example of a state in which pipes for water supply and hot water supply are laid by the method of the present invention.
The water supply / hot water main pipe 11 is provided with a pipe 13 connected via a plurality of connection joints 10 attached to a distribution device 12 and a terminal discharge faucet 14 for water supply / hot water supply.
On the indoor side of the place where the distribution device 11 is arranged, there is provided an openable / closable inspection port 15 for inspecting the connection / connection joint 10 and the piping 13 for leakage.

FIG. 2 is a partially cutaway plan view of an example of the ring-shaped dispensing apparatus, FIG. 3 is a cross-sectional view taken along a line AA in FIG. 2, and FIG. FIG. 5 is a partial cutaway plan view, and FIG. 5 is a cross-sectional view taken along a line BB in FIG. The ring-shaped distribution device 21 has a ring (donut) shape in appearance, and six connection joints 22 are attached to the ring-shaped outer wall so as to extend radially outward from the center of the distribution device. . A female screw is engraved on the inner wall surface of the connection joint 22. Disc-shaped distribution device 41 shown in FIG.
Has a disk shape in appearance, and six connecting joints 42 are attached to the outer wall of the disk so as to extend radially outward from the center of the distributor. The joint 42 is not provided with a screw on the inner wall surface or the outer wall surface.

[0022]

The method of the present invention has the following particularly advantageous effects, and its industrial value is extremely large. 1. In the method of the present invention, since the direction in which the branch pipes are connected is not restricted as in the header method, there is no need to individually lay curved resin pipes at a plurality of use locations, and the construction work is simple. 2. Since the method of the present invention does not restrict the direction in which the branch pipes are connected as in the header method, it is not necessary to bend and lay resin pipes for individually supplying hot water and water at a plurality of use locations. Since the length of the piping can be minimized, it is extremely economically advantageous. 3. According to the method of the present invention, since a plurality of connection joints are arranged as a group and covered with an openable / closable cover, inspection, inspection, and maintenance of the pipe after the installation is extremely easy.

[Brief description of the drawings]

FIG. 1 is a schematic plan view showing an example of a state in which a pipe for water supply / hot water supply is laid according to the method of the present invention.

FIG. 2 is a partially cutaway plan view of an example of a ring-shaped distribution device.

FIG. 3 is a sectional view taken along the line AA of FIG. 2;

FIG. 4 is a partially cutaway plan view of an example of the disc-shaped dispensing device.

FIG. 5 is a sectional view taken along the line BB of FIG. 4;

FIG. 6 is a schematic plan view showing a state where a plurality of pipes are connected to a conventional header.

[Explanation of symbols]

 10, 20, 40: Fitting 11: Main pipe 12: Dispensing device 13: Piping 14: Terminal discharge faucet 15: Openable inspection port 21: Ring-shaped distributing device 42: Disk-shaped distributing device

 ────────────────────────────────────────────────── ─── Continued on the front page (72) Inventor Kazuhiro Sueyoshi 1-20-5 Chiyoda, Yokkaido, Chiba

Claims (4)

[Claims] When a plurality of pipes are connected to a distribution device connected to a main pipe for water supply and hot water supply and a pipe for water supply and hot water supply is laid, a distribution device having a ring-shaped appearance is arranged. A plurality of connection joints are attached to the ring outer wall of the ring-shaped distribution device so as to extend radially outward from the center of the ring-shaped distribution device, and a flexible resin pipe is attached to an end of the connection joint. Water supply, characterized by connecting
Laying pipes for hot water supply. 2. A distributing device having a disk-like appearance is provided as a distributing device when connecting a plurality of pipes to a distributing device connected to a main pipe for water supply and hot water supply and laying a pipe for water supply and hot water supply. A plurality of connecting joints are attached to the outer wall of the disc of the disc-shaped dispensing device so as to extend radially outward from the center of the disc-shaped distributing device, and a flexible resin is attached to an end of the connecting joint. A method for laying pipes for water supply or hot water supply, characterized by connecting pipes made of water. 3. A method for laying piping according to claim 1, wherein an openable and closable inspection port is provided on the indoor side of a place where the distribution device to which a plurality of connection joints are attached is arranged. . 4. The inspection port is formed in a round shape,
The method for laying a pipe according to claim 3.