JPH11229455A - Laying method of pipe - Google Patents

Abstract

PROBLEM TO BE SOLVED: To simplify the laying work of pipes by fitting a plurality of joints to the four or six faces of a rectangular parallelepiped distributor and extending them outward and connecting flexible resin pipes to the ends of joints. SOLUTION: A plurality of joints 10 are fitted to a distributor 12. A main pipes 11 and branch pipes 13 for supplying water or hot water are connected to the distributor through the joints 10 and terminal faucets 14 for supplying water or hot water are fitted. Resin pipes such as crosslinked polyethylene pipes, polybutene pipes, polyvinyl chloride pipes, polyethylene pipes, polypropylene pipes, etc., can be connected to the joints 10 as the branch pipes 13. In this way, these resin pipes are connected to the joints 10 and laid in specified positions. Hence, the branch pipes 13 are not required to be connected in order in a certain direction and the connecting direction of pipes can be freely arranged to coincide with the direction of the joits 10. Accordingly, it is not necessary to bent the branch pipes respectively to a plurality of service positions and lay them, and the laying work is simplified.

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 direction of taking out the supply pipe from the distribution device, shorten the length of the entire resin pipe as much as possible, and The present invention relates to a pipe laying method that facilitates inspection, inspection, maintenance and renewal.

[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.

In the method described in these publications, a header is often provided on a wall, and therefore, a direction in which a plurality of pipes (branches) are connected to a header for water supply / hot water supply connected to a main pipe is fixed from below. I needed to. FIG. 3 is a schematic plan view showing a state where a plurality of pipes are connected to a conventional header. In FIG. 3, 31 is a main pipe, 32 is a header, 3
Reference numeral 3 denotes a pipe (branch pipe), and reference numeral 34 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 where the pipe is guided to the opposite side across the header, the pipe (branch pipe) is bent as shown in FIG. Water supply / hot water supply terminal 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 pipe connected to a main pipe for water supply and hot water supply to lay a branch pipe for water supply and hot water supply. In doing so, a distributing device having a hollow interior and a substantially rectangular appearance is arranged, and a plurality of connecting joints are extended outwardly from surfaces 4 to 6 of the rectangular distributing device. And connecting a flexible resin pipe to an end of the connection joint. The present invention provides a method for laying a pipe for water supply or hot water supply.

[0008]

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 water from a meter such as each dwelling unit or a water heater of each dwelling unit to a distribution device, and is usually a resin pipe connected to another connection joint attached to the distribution device. Larger diameters are employed.
On the water / hot water supply side of this main pipe, a meter is installed on the way, or in the case of hot water supply piping, a water heater (water heater) is arranged. A connection joint is used to supply water or hot water
Refers to a connection fitting attached to the distribution device for leading to a hot water discharge faucet.

[0009] The rectangular dispensing device is hollow on the inner side, and its appearance is rectangular. The dispensing device having a rectangular shape in appearance is a hexahedral shape similar to a columnar body or a match box with an inner box that can be pulled out. A plurality of connection joints are arranged on four to six faces of the hexahedron. 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. The connection joints extend outward from the surface of the rectangular parallelepiped and are arranged at substantially equal intervals. For example, when seven joints (eight when the joint with the main pipe is included) are arranged, two opposing surfaces of the rectangular body (surfaces corresponding to both ends in the length direction in the columnar body) are arranged. A joint with the main pipe is arranged on one side, and one connection joint is arranged on the other side. Each of the two small rectangular faces (corresponding to two faces facing each other in the longitudinal direction in the columnar body) Preferably, three connecting joints are arranged.

The size of the rectangular dispensing device varies depending on the type of building on which it is to be laid and the location where the terminal plugs are to be placed, but one side of the cross section cut at a right angle to the longitudinal direction is one.
It can be selected in the range of 0 mm to 40 mm. The length of the rectangular body varies depending on the place where the rectangular body is laid and the number of connection joints arranged on the rectangular body, but can be selected in the range of 50 mm to 400 mm.

The connecting joints arranged in the rectangular distribution device preferably have a larger diameter for connecting to the main pipe and a smaller diameter for the remaining connecting joints. The structure of the connection joint may be a structure in which a female screw is carved on the inner wall surface so that the connection member holding the end of the flexible resin pipe can be screwed into the connection joint, or JIS K 6770 or JIS K 6779. And a structure that can be fusion-bonded to the joint device described in (1).

[0012] The material of the rectangular distribution device is a metal material,
Any of resin materials and the like may be used. If the rectangular dispensing device is made of a metal material, the connecting joints are also preferably made of a metal material and are preferably screwed to four or six faces of the dispensing device. 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. In addition, the plurality of predetermined locations where water or hot water is guided are kitchen, washing machine, bathroom, washroom,
Toilet, shower room, etc.

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 branch 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 a rectangular parallelepiped distribution device to be 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. The same number of fittings as the number of hot water supply faucets are installed and a dispenser is selected. 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 distributing device in the form of a rectangular parallelepiped is installed on a floor, a space in a wall, behind a ceiling, or the like, and a plurality of the distributing devices thus installed are stored 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. , On the wall, between the studs, wood slides, plywood,
It can be appropriately selected depending on the type of building, such as being placed in contact with a lath board or the like, and being placed above the ceiling floor if it is behind the ceiling.

An openable and closable inspection port is provided on the indoor side of the rectangular dispensing device arranged 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 length 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 a water supply / hot water supply pipe used for a building such as a detached house, an apartment house, a commercial building or a hotel. 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. 3, and the pipe is connected in the direction in which the connection joint is attached. And so on. Therefore, the pipe laying method according to the present invention does not require the branch pipe to be detoured and laid as in the “header method”, and the entire length of the resin pipe does not become extremely long, and the laying operation is easy. It can be said that this is an economically advantageous laying 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.
A branch pipe 13 connected via a plurality of connection joints 10 attached to a distributor 12 and a terminal discharge faucet 14 for water supply / hot water supply are attached to the main pipe 11 for water supply / hot water supply.
On the indoor side of the place where the distribution device 12 is arranged, the connection joint 1 is provided.
An openable and closable inspection port is provided for checking whether there is a leak between the zero and the branch pipe 13.

FIG. 2 is a partially cutaway plan view of an example of the rectangular solid distribution device. The rectangular body distribution device 21 has a substantially rectangular shape in appearance, and eight connection joints 20 are provided on the outer wall of the rectangular body.
Are mounted to extend outside the dispensing device. A female screw is engraved on the inner wall surface of the connection joint 20.

[0022]

The method of the present invention has the following particularly advantageous effects, and its industrial value is extremely large. 1. According to the method of the present invention, since the direction in which the branch pipes are connected is not restricted as in the header method, it is not necessary to separately lay the branch pipes at a plurality of use locations, and the construction work is simple. 2. 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, it is not necessary to lay curved 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, an openable and closable inspection port is provided on the indoor side of a place where a plurality of connection joints are arranged as a group, so that 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 the rectangular solid distribution device.

FIG. 3 is a schematic plan view showing a state where a plurality of pipes are connected to a conventional header.

[Explanation of symbols]

 10, 20: Fittings 11, 31: Main pipe 12, 32: Distributor 13, 33: Piping 14, 34: Discharge faucet 21: Rectangular dispenser

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[Procedure amendment]

[Submission date] February 18, 1998

[Procedure amendment 1]

[Document name to be amended] Drawing

[Correction target item name] Figure 3

[Correction method] Added

[Correction contents]

FIG. 3

Claims (3)

[Claims] When a plurality of branch 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, the inside of the distribution device is hollow and has an almost rectangular appearance. A plurality of connecting joints are attached to the distributing device in the form of a body, extending outward from the four to six surfaces of the rectangular dispensing device, and a plurality of connecting joints are attached to ends of the connecting joints. A method of laying piping for water supply and hot water supply, characterized by connecting 2. The laying of piping according to claim 1, wherein an openable and closable inspection port is provided on the indoor side of a place where the rectangular distribution device to which a plurality of connection joints are attached is arranged. Method. 3. The inspection port is formed in a round shape.
The method for laying a pipe according to claim 2.