JPH0315068B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a drainage vertical pipe joint provided with four side branch pipe connection ports on its sides.

Conventionally, in this type of drainage vertical pipe joint, the side branch pipe itself is directly connected to the side branch pipe connection port, and the structure, shape, dimensions, etc. of the connection port are formed to match each side branch pipe. It was common to

Therefore, the drainage vertical pipe joint must be located at a location suitable for each piping direction according to the layout of the equipment connected to it, such as a toilet bowl or bathtub, and must have a side branch pipe connection port that matches the pipe diameter. Because they were manufactured individually, there were a large number of types, and productivity was extremely low.

By the way, on-site, when the client requests a change in the layout of the fixtures after the drainage standpipe joints have been prepared in accordance with the layout of the fixtures in the original design, or when the drainage standpipe joints are mistakenly installed in a manner that is contrary to the original layout. Fittings may be available. In such cases, it is necessary to urgently obtain a new layout that can accommodate the changed layout or the original layout due to construction schedules and other considerations.

However, as mentioned above, these drainage standpipe joints require longer delivery times due to problems in terms of productivity. As a result, they were forced to incur significant losses, including delays in construction.

Furthermore, in the case of existing piping, for example, when it is desired to change some of the side branch pipes, it has conventionally been necessary to replace the main body of the drainage vertical pipe joint with one that is compatible with the new side branch pipe.

In view of the above-mentioned conventional drawbacks, the present invention provides a drainage vertical pipe joint equipped with a side branch pipe connection port on the side surface, which not only makes it possible to smoothly remove the sulfur from the drainage water but also connects the side branch pipe to the side pipe. Intermediate joints of different diameters for connection can be attached interchangeably, and
To provide a drainage vertical pipe joint that can improve productivity and facilitate maintenance by making it possible to attach a blind plate to the side branch pipe connection port when there is no need to connect the side branch pipe to the connection port. The purpose is to

Hereinafter, in this specification, the above-mentioned blind plate is also included in the intermediate joint.

The drainage standpipe joint according to the present invention connects an expanded part formed below the upper standpipe connection port, the inner diameter of which is larger than the inner diameter of the upper standpipe connection port, and the same area around the side surface of the expanded part. For a drainage vertical pipe joint body formed by four horizontal branch pipe connection ports extending radially at a height position, on the distal end surface of the horizontal branch pipe connection ports,
A mounting flange for attaching an intermediate joint for connecting the horizontal branch pipe is provided, and a connecting flange that can be detachably connected to the mounting flange is provided at one end of the intermediate joint, and the connecting flange is connected to the connecting flange through the mounting flange. The intermediate joint is replaceably attached to the drain pipe joint main body.

Next, an embodiment of the present invention will be described with reference to FIGS. 1 to 5. In the figure, reference numeral 1 denotes the drainage standpipe joint body (hereinafter simply referred to as the main body) of this embodiment, which is provided with a substantially straight upper standpipe connection port 2 at its upper part, and below which is an upper standpipe whose inner diameter is It includes an expanded portion 3 formed larger than the inner diameter of the connection port 2,
Furthermore, four lateral branch pipe connection ports 4 to 4 are radially extended at the same height position around the side surface of the expanded portion 3,
Attachment flanges 9 to 9 for attaching intermediate joints 5 to 8 are formed at their tips as described below.

The main body 1 has a funnel portion 1 provided with a tapered portion 10 tapered downward at the lower end of the expanding portion 3 described above.
1 is formed, and its lower end is provided with a straight lower vertical pipe connection port 12, to which a lower vertical pipe 13 is connected.

The main body 1 of this example also includes side branch pipe connection ports 4 to 4.
a cylindrical inner tube 14 substantially opposite the inner opening of the
However, in the expansion and expansion part 3, the upper vertical pipe connection port 2
It is integrally formed and hangs down from the lower end of the.
That is, the inner pipe 14 has a size that allows the drainage water to collide with the main body 1 when the flow rate of the drainage water flowing into the main body 1 from the side branch pipe connection ports 4 to 4 is large.

Further, in this embodiment, the upper standpipe 15 is connected to the upper standpipe connection port 2 by a so-called sliding method. That is, the lower end of the upper standpipe 15 is inserted into the inner circumferential surface of the upper standpipe connection port 2, and the effective piping length of the upper standpipe 15 can be adjusted depending on the insertion length. has been done.

The upper end surface of the upper vertical pipe connection port 2 is provided with a packing receiving surface 16 formed in an approximately 1/4 arc shape in the radial direction in an annular manner along the inner peripheral edge. A ring-shaped packing 17 is fitted, and this packing 17 is tightened by an annular flange-shaped tightening collar 18 and four bolts 19 to 19 shown in the figure to connect the upper vertical pipe connection port 2 and the upper vertical pipe 15. Watertightness is maintained between the

Next, the above-mentioned mounting flanges 9 to 9 and intermediate joints 5 to 8 will be described in detail.

First, the mounting flanges 9 to 9 are formed in an annular shape on the distal end surface of each side branch pipe connection port 4 in order to mount the intermediate joints 5 to 8, respectively, and the outer peripheral surfaces thereof have 4 The lug pieces 20 to 20 are provided protrudingly at equal intervals, and each protrudingly provided with a screw hole 21 for screwing a bolt.

Now, in this example, the four mounting flanges 9 to 9 described above are all formed in the same shape.

On the other hand, at one end of the intermediate joints 5 to 8, a connecting flange 22 is formed which can be detachably connected to the above-mentioned mounting flange 9.

Thus, the intermediate joints 5 to 8 connect their connecting flanges 22 to the mounting flanges 9 by bolts 24.
By fastening to each side branch pipe connection port 4
It is attached to ~4. However, the mounting flange 9
A packing 23 is interposed between the connecting flange 22 and the connecting flange 22 to maintain watertightness in this area.

Now, the intermediate joints 5 to 8 are formed such that the other ends of the connection flanges 22 are adapted to the respective side branch pipes. That is, the illustrated intermediate joint 5 is formed into a substantially cylindrical tube shape so as to connect the horizontal branch pipe 25 having an outer diameter slightly smaller than the inner diameter on the side of the connecting flange 22 by a sliding method. However, the other end of the intermediate joint 5 is formed by gradually tilting the bottom upward from the end on the connection flange 22 side, and a cap nut 29 is screwed onto the tip thereof.

A packing 30 is interposed between the outer circumferential surface of the lateral branch pipe 25 and the inner surface of the cap nut 29 to maintain watertightness of this portion.

Further, the illustrated intermediate joints 6 and 7 are also formed in the same manner as the aforementioned intermediate joint 5, so detailed description thereof will be omitted. However, the intermediate joint 6 has a connecting flange 2 in order to connect the horizontal branch pipe 26 having a smaller outer diameter than the aforementioned horizontal branch pipe 25 by a sliding method.
The bottom and side surfaces are inclined from the second end, and a cap nut 31 is screwed onto the end, and a packing 32 maintains watertightness.

Further, the intermediate joint 7 includes a side branch pipe 27 having an outer diameter that is approximately the same as the inner diameter on the connection flange 22 side.
Unlike the intermediate joints 5 and 6 described above, the intermediate joints 5 and 6 are formed in a substantially cylindrical shape in order to connect the joints in a sliding manner. has been done.

Now, in this example, there are four side branch pipe connection ports 5 to 5.
5, there is no need to connect a side branch pipe to the connection port located at the bottom in FIG. 2, so a blind plate-shaped intermediate joint 8 is attached to the mounting flange 9 of the side branch pipe connection port. That is, this intermediate joint 8 has the same connection flange 22 as in the case of intermediate joints 5 to 7 described above.
and is directly attached to the mounting flange 9 via packing 23.

In addition, in the lower part of FIG. 1, the one shown in solid line has a flange 35 protruding from the upper end of the lower vertical pipe 13.
A technique for connecting the lower vertical pipe 13 to the lower end of the main body 1 via the tightening collar 36 and packing 37 is illustrated. Further, the part shown in chain lines exemplifies a technique in which a flange 38 is provided protruding from the lower end of the main body 1 and the lower vertical pipe 13 is connected via a tightening collar 39 and packing 40.

Next, the functions and effects of this embodiment will be explained.
In this example, four side branch pipe connection ports 4 to 4 are provided on the side surface of the expanding portion 3 of the main body 1, and identical mounting flanges 9 to 9 are provided at their tips, respectively, while intermediate joints 5 to 8 is provided with a connecting flange 22 connectable to the mounting flange 9 on one end surface thereof.

Therefore, although the intermediate joints 5 to 8 are formed to connect horizontal branch pipes having different outer diameters, they can be connected to any of the horizontal branch pipe connection ports 4.

Therefore, unlike in the past, there is no need to design the main body 1 differently depending on the outer diameter of the lateral branch pipe, and it is possible to use a so-called standard design, which improves the productivity of the main body 1. .

Furthermore, when changing the side branch pipe before piping or after construction, this can be handled by changing only the intermediate joint.

Moreover, in this embodiment, the expansion and expansion part 3 is provided below the upper vertical pipe connection port 2, so that the drainage flow path has a space for expansion, so that the inside of the main body 1 and the inside of the side branch pipe are connected. Ventilation between the main body 1 is always maintained even when vertical pipe drainage and side branch pipe drainage are flowing into the main body 1. The water seal of the drainage trap connected to the side branch is thus protected. Further, the generation of noise inside the pipes is also alleviated.

Furthermore, in this embodiment, the upper vertical pipe connection port 2
Since the inner pipe 14 is connected to the lower part, the wastewater flowing down from the upper vertical pipe 15 is automatically guided to the inner circumferential surface of the inner pipe 14, and then a part of it flows from the lower edge of the inner pipe 14. The droplets form irregular droplets and fall onto the tapered part 10 of the funnel part 11.

On the other hand, the wastewater flowing into the main body 1 from the side branch pipes 25 to 27 collides with the outer circumferential surface of the inner pipe 14, loses flow energy in the lateral direction, and falls freely.

Therefore, ventilation between the inside of the main body 1 and the inside of the side branch pipe, protection of the water seal of the drain trap, and mitigation of noise generation inside the pipe are further promoted.

Further, the shape of the intermediate joint does not necessarily have to be cylindrical, but can be shaped into an elbow shape as shown in Fig. 6, and the connection between the intermediate joint and the side branch pipe does not necessarily have to be by a sliding method, for example. Connection using a screw method as shown in FIG. 7 is also possible.

That is, in the present invention, by extending the four side branch pipe connection ports radially at the same height position around the side surface of the drainage vertical pipe joint main body, it is possible to smooth the flow of drainage inside the main body. . In addition, the main body is equipped with a mounting flange that can be called a standard type, and
By providing the intermediate joint with a connecting flange connectable to this mounting flange, intermediate joints having different diameters can be attached interchangeably. Therefore, the drainage vertical pipe joint according to the present invention is extremely productive and easy to maintain, and its effects are significant.

Furthermore, according to the present invention, it is possible to connect side branch pipes from a maximum of four directions, so that drainage water can be drained from the four main water points in a normal house: the toilet, bathroom, washroom, and kitchen. can be connected to a single drainage vertical pipe through a separate horizontal branch pipe, thereby eliminating the possibility of collision of drainage water from multiple locations within the horizontal branch pipe.

In addition, since the four side branch pipe connection ports are provided at the same height, even when piping space is small, there are four
The main horizontal branch pipes can be installed at the same height.

Furthermore, drainage water from bathrooms and washrooms that are used less frequently can be merged into the same side branch pipe connection port, and side branch pipe connection ports to which no side branch pipes are connected are covered with blind covers. The blind-covered side branch pipe connection port can be used as a window for maintenance and inspection.

In addition, in hotels, there are only two water sources, the bathroom and the washroom, and the waste water only flows at certain times in the morning and at night. Since it is possible to drain water from two rooms, construction costs can be reduced.

[Brief explanation of the drawing]

FIG. 1 is a partially cutaway front view of an embodiment of the drainage stand pipe joint according to the present invention, FIG. 2 is a partially cutaway plan view thereof, FIG. 3 is an enlarged plan view showing the shape of the mounting flange 9, and FIG. 5 is an enlarged plan view showing the shape of the connecting flange 22, FIG. 6 is a front view showing an example of an elbow-shaped intermediate joint, and FIG. 7 is an enlarged longitudinal sectional front view of the intermediate joint 5. It is a front view which shows an example connected to an intermediate joint by a screw method. 1...Main body, 2...Upper vertical pipe connection port, 3...
Expanded portion, 4... Lateral branch pipe connection port, 5, 6, 7, 8...
...Intermediate joint, 9...Mounting flange, 22...Connection flange.

Claims (1)

[Scope of Claims] 1. An expanded portion having an inner diameter larger than the inner diameter of the upper vertical pipe connection port is provided below the upper vertical pipe connection port, and the same area around the side surface of the expanded portion is provided. An intermediate joint for connecting the horizontal branch pipes to the distal end surface of the horizontal branch pipe connection ports, for a drainage vertical pipe joint body formed of four horizontal branch pipe connection ports extending radially at a height position. a mounting flange to which the mounting flange is attached, and a connecting flange detachably connectable to the mounting flange is provided at one end of the intermediate joint, and the intermediate joint is connected to the drain pipe joint main body via the mounting flange and the connecting flange. A drainage standpipe joint characterized in that it can be attached and replaced freely.