JP2003253717A - Piping in building - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide piping in building of which the connection works can be easily carried out and of which the connection works to drain water implements can be simply carried out even when the installation positions of these implements are changed in the case of change of the installation positions when changing the layout or executing renewal works or the like. <P>SOLUTION: Branch pipes 22 are connected to cross with a main pipe 21 at an angle of 45-60°. Branch joints 23 respectively provided with a widening faucet 26 at both ends of the primary pipe part 21 are connected so that the drain main pipe 24 and the primary pipe part 21 form a straight line through the faucet 26 in the drain main pipe 24 laid in a building and further, the main pipe can turn around the axial line of the primary pipe part 21 through a rubber ring 28 fitted in a circular groove 27 formed in the inner peripheral faces of the faucet or the outer peripheral face of the end of the drain main pipe. A horizontal drain pipe 25 connected to drain implements is connected to the branch pipes 22. <P>COPYRIGHT: (C)2003,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to indoor plumbing, and more specifically, in a high-rise apartment building such as an apartment or condominium, drainage pipes can be easily connected, and layout changes and renewal after piping construction can be performed. Even when the installation location of drainage equipment is changed in such cases, it relates to building piping that can be easily connected to these drainage equipment.

[0002]

2. Description of the Related Art In recent years, in high-rise apartments such as apartments and condominiums, the layout has been changed and renewed in response to the diversification of the living environment. The installation location of the equipment has been changed. Normally, the drainage pipe in a high-rise apartment building has a space between the concrete slab and the floor, and a drainage main is laid in this space. It is connected to various drainage equipment such as. For example, as shown in the schematic piping diagram of FIG. 4, a plurality of branch joints 12a, 12b, 12c are installed in the drainage main pipe 11, and the branch pipe portions 13 of the respective branch joints 12a, 12b, 12c are installed.
drainage horizontal pipes 14a, 1 connected to a, 13b, 13c
4b and 14c are connected to various drainage devices such as a bathtub 15, a washing pan 16 and a sink 17.

[0003]

However, when the layout is changed or renewed according to the preference of the resident, the installation location of the bathtub 15 must be changed as shown by the phantom line in FIG. May occur.
At this time, when the drain main 11 and the branch joint 12a are adhesively joined, the drain main 11 is partially cut off and a new branch joint 12d is attached.
There is a problem in that the drainage horizontal pulling pipe 14d must be connected to the branch pipe portion 13d, and this construction work is troublesome. Further, in the branch joint, when a branch joint called a so-called T joint, in which a main pipe portion to which the drainage main is connected and a branch pipe portion to which the horizontal pulling pipe is connected is orthogonal, Since the wastewater flowing in from the horizontal drawing pipe intersects at right angles, there is a problem that dirt and the like are likely to stay at this joining portion.

Therefore, according to the present invention, connection work of drainage pipes can be easily performed, and when the layout of the drainage pipes is changed or renewal is performed after the pipe construction, even if the installation place of the drainage pipes is changed, these devices can be connected with each other. It is an object of the present invention to provide building piping that enables easy connection work.

[0005]

In order to achieve the above object, the indoor piping of the present invention has a branch pipe portion with respect to a main pipe portion.
Branch joints that are connected by intersecting at an angle of 5 to 60 ° and provided with expanded-diameter receiving ports at both ends of the main pipe part are provided in the drainage main pipe laid inside the building through the receiving port. With respect to the main drainage pipe through a rubber ring attached to an annular groove provided on the inner peripheral surface of the receiving port or the end outer peripheral surface of the main drainage pipe so that the pipe and the main pipe portion are aligned with each other. It is characterized in that the main pipe portion is connected so as to be rotatable around the axis of the main pipe portion, and a horizontal drain pipe connected to a drainage device is connected to the branch pipe portion.

Further, the branch pipe portion is 45 to 60 with respect to the main pipe portion.
Prepare a plurality of branch joints that are connected by intersecting at an angle of °, and have enlarged-diameter receiving ports at both ends of the main pipe section, and arrange them so that the main pipe sections of each branch joint are in a straight line. Insert the short tube across both sockets,
In a state in which each branch joint is connected so as to be rotatable about the axis of the main pipe portion via a rubber ring attached to an annular groove provided on the inner peripheral surface of the receiving port or the outer peripheral surface of the short pipe, This is installed in a drainage main pipe laid inside a building, and drainage horizontal pull pipes connected to various drainage devices are connected to the branch pipe portions of the respective branch joints. It is characterized in that it is provided with a strip, and rubber rings are attached to both annular grooves.

[0007]

1 is a cross-sectional view of a main part showing an example of an embodiment of piping for a building according to the present invention. This building piping is
A branch joint 23 in which the branch pipe portion 22 is connected to the main pipe portion 21 in an inclined state is connected to the middle of a drainage main pipe 24 laid in a building, and the branch pipe portion 2 of the branch joint 23 is connected.
2, a drain horizontal pulling pipe 25 connected to a drain device is connected.

In the branch joint 23, the main pipe portion 21 and the branch pipe portion 22 are integrally formed of a synthetic resin such as vinyl chloride resin. The branch pipe portion 22 is 45 to 6 with respect to the main pipe portion 21.
They intersect at an angle θ of 0 °. In this way, the main pipe portion 21
In contrast, when the branch pipe portion 22 is inclined in the angle range of 45 to 60 °, the drainage flowing from the branch pipe portion 22 does not interfere with the drainage flowing through the main pipe portion 21, and the main pipe portion 21 and the branch pipe The dirt and the like can smoothly flow without stagnation at the confluence with the portion 22.

At both ends of the main pipe portion 21, there are enlarged diameter receiving ports 26.
2 are provided on the inner peripheral surfaces of both receptacles 26, respectively.
The ring-shaped groove 27 is formed, and the rubber ring 2 is formed in each ring-shaped groove 27.
8 are installed respectively. Further, similarly to the receiving port 26, an expanded diameter receiving port 29 having an annular groove 27 in which a rubber ring 28 is mounted is provided at the tip of the branch pipe portion 22, and the drainage horizontal drawing pipe is provided in the receiving port 29. It is formed so that 25 can be connected. In addition, each annular groove 27 on the inner peripheral surface of the receiving port 26 is 1
Although there is no problem with the article, the watertightness and stability can be improved by providing two articles.

The main pipe portion 21 of the branch joint 23 is connected to the drainage main pipe 24 by receiving ports 26 at both ends so as to be in a straight line, and further, via a rubber ring 28, the main pipe portion 21.
Is connected to the drainage main pipe 24 so as to be rotatable about the axis of the. When connecting the branch joint 23 to the drain main 24, the branch pipe 22 is arranged so as to be inclined toward the upstream side of the drain main 24.

The drainage horizontal pipe 25 connected to the drainage equipment such as a bathtub, a washing pan and a sink and the branch pipe portion 22 are connected to each other by the drainage equipment such as the bathtub, the washing pan and the sink.
4, depending on whether it is located on the right side or on the left side, the branch joint 23 is rotated to direct the branch pipe part 22 toward the drainage horizontal draw pipe 25, and then the drainage horizontal draw pipe 25 and the branch pipe part 22. Should be connected as usual. At this time, depending on the connection direction of the horizontal drain pipe 25 to the branch pipe portion 22, it can be connected through various joints such as the short pipe 30 and the elbow 31, and the horizontal drain pipe 25 can be directly connected to the receiving port 29. You can also do it.

Further, after the pipe construction is carried out in this way, when it is necessary to change the installation location of the drainage equipment such as the bathtub, the washing pan, the sink, etc., when the layout is changed or renewed. It is not necessary to partially remove the drainage main pipe 24 to install a new branch joint, and by rotating the branch joint 23 so that the branch pipe portion 22 faces in the direction of newly installing the drainage device. The drain horizontal drain pipe 25 can be easily connected to the receiving port 29.

FIGS. 2 and 3 show an example of a state in which a plurality of branch joints are connected and used. FIG. 2 is a sectional view showing a state before connection, and FIG. 3 is a drainage main pipe. It is sectional drawing which shows the connected state. In addition, the same components as the components of the building piping described in the above-described embodiment are designated by the same reference numerals, and detailed description thereof will be omitted.

In this embodiment, a plurality of branch joints 23 are connected to the short pipe 4.
The joint unit 42 is formed by connecting the joint unit 1 through 1, and the joint unit 42 is installed in the middle of the drainage main pipe 24, and the branch pipe portion 22 of each branch joint 23 is provided with drainage water such as a bathtub, a washing pan, and a sink. The horizontal drain pipe 25 connected to the device is connected.

The joint unit 42 includes a plurality of branch joints 23.
Is arranged so that the main pipe portion 21 in the straight line is aligned, and the short pipe 4 is straddled across both of the receiving ports 26 adjacent to each other.
1 is inserted and each branch joint 23 is connected so as to be rotatable about the axis of the main pipe portion 21. In addition, as described above, the receiving port 26 connected to the drain main 24
Also, since it is rotatably connected to the drain main 24, as shown in FIG. 3, in the state where the joint unit 42 is connected to the drain main 24, each branch joint 23 is The branch pipe portion 22 can be independently rotated, and the branch pipe portion 22 can be directed in a direction according to the position of the drainage device connected to each branch pipe portion 22.

Therefore, even if a plurality of branch joints 23 are connected by the short pipe 41 with the branch pipe portion 22 oriented in an arbitrary direction, the branch pipe portion 22 is rotated toward the drainage device at the time of construction. Therefore, the required number of branch joints 23 can be prepared and the joint unit 42 can be formed in advance regardless of the state of the construction site, and the amount of work at the construction site can be reduced.

Further, similarly to the above, even when the installation location of the drainage equipment is changed due to a layout change or a renewal after the pipe construction, the branch joint 23 corresponding thereto is rotated to change the direction of the branch pipe portion 22. It only needs to be changed, and the drainage horizontal pipe 25 connected to the drainage device whose installation location is changed can be easily connected.

In both embodiments, the expanded joints 26 are provided at both ends of the main pipe portion 21 of the branch joint 23, and the rubber ring 28 is attached to the annular groove 27 formed on the inner peripheral surface of the receptacle 26. However, the present invention is not limited to this form, and instead of forming an annular groove in the receiving port 26, the outer peripheral surface of the end portion of the drainage main pipe 24 inserted into the receiving port 26 or a short pipe. An annular groove may be formed on the outer peripheral surface of 41, and a rubber ring may be attached to this annular groove.

[0019]

As described above, according to the building piping of the present invention, in a high-rise apartment house such as an apartment or a condominium, drainage pipes can be easily connected, and the layout after piping is changed. Even when the installation location of the drainage device is changed at the time of renewal or the like, the connection work with the drainage device can be easily performed.

[Brief description of drawings]

FIG. 1 is a cross-sectional view of a main part showing an example of one form of a building pipe of the present invention.

FIG. 2 is a cross-sectional view showing a state before connecting a branch joint when a plurality of branch joints are connected and used.

FIG. 3 is a cross-sectional view showing a state in which a plurality of branch joints are connected to a drainage main pipe.

FIG. 4 is a schematic diagram of piping showing a conventional drainage pipe installation state.

[Explanation of symbols]

21 ... Main pipe part, 22 ... Branch pipe part, 23 ... Branch joint, 24 ...
Main drainage pipe, 25 ... Horizontal drainage pipe, 26 ... Receptacle, 27 ... Annular groove, 28 ... Rubber ring, 29 ... Receptacle, 30 ... Short pipe, 31 ...
Elbow, 41 ... Short pipe, 42 ... Joint unit

Claims (3)

[Claims] 1. A branch joint in which a branch pipe portion is connected to a main pipe portion at an angle of 45 to 60 °, and branch expansion joints are provided at both ends of the main pipe portion are laid inside a building. An annular groove provided on the inner peripheral surface of the receiving port or on the outer peripheral surface of the end part of the drainage main so that the drainage main and the main pipe portion are aligned with each other through the receiving port. Connected to the drainage main pipe via the rubber ring attached to the rotatably state about the axis of the main pipe part, and connecting the drainage horizontal pull pipe connected to the drainage device to the branch pipe part. Characteristic plumbing inside the building. 2. A plurality of branch joints in which branch pipe portions are connected to the main pipe portion while intersecting at an angle of 45 to 60 °, and a plurality of expanded joints are provided at both ends of the main pipe portion, respectively. An annular groove provided on the inner peripheral surface of the receiving port or the outer peripheral surface of the short pipe while arranging the main pipe portion of the branch joint so as to be in a straight line and inserting the short pipe across both the receiving ports adjacent to each other. Installed in the drainage main laid inside the building, with each branch joint connected via a rubber ring attached to the main body so that it can rotate about the axis of the main pipe. A plumbing pipe inside a building, in which a horizontal drain pipe connected to various drainage devices is connected to the branch pipe portion of the joint. 3. The building pipe according to claim 1, wherein two annular grooves are provided, and a rubber ring is attached to each of the annular grooves.