JPS6142157B2 - - Google Patents

Description

[Detailed description of the invention] The present invention relates to a deformed pipe joint device for a drainage standpipe,
In detail, for the lower part of the upper drainage pipe joint, which has a connection port on the side for connecting sewage pipes, etc.
This invention relates to an irregularly shaped drain pipe joint device for a drain pipe in an upper and lower two-layer type drain pipe joint device which is a combination of a lower drain pipe joint with a connection port on the side for connecting a gray water pipe or the like.

The present invention enables the lower end of the upper drainage pipe joint to be inserted into the upper end of the lower drainage pipe joint,
Moreover, the upper drainage pipe joint has a flow passage cross-sectional area that is greater than the effective flow passage cross-sectional area of the side connection port of the lower drainage pipe joint and the lower end of the upper drainage pipe joint and the lower drainage pipe. The lower limit is the position secured between the joint and the inner wall surface, the insertion depth can be adjusted, and the height of the upper drain pipe joint is set to the height of toilets and other appliances installed on the top surface of the finished floor. In addition, even when the amount of insertion of the upper drainage pipe joint into the lower drainage pipe joint reaches the lower limit, the side connection of the lower drainage pipe joint can be adjusted. An irregularly shaped pipe joint for a drainage standpipe that secures the flow path cross-sectional area of the opening within the lower drainage standpipe joint and allows drainage from the side connection port of the lower drainage standpipe joint to flow downward smoothly. The purpose is to provide a device.

Next, an embodiment of the present invention will be explained with reference to FIG. 1. In the figure, 1 is a slab on an arbitrary floor of a building, and 2 is a slab for guiding the drainage pipe of the floor to the adjacent lower floor. This is a through hole provided through 1.
Further, reference numeral 3 denotes the finished floor of the relevant floor, which is usually installed above the slab 1 at a distance 4 of about 140 to 220 mm, and within this distance 4, gray water side branch pipes, etc. are arranged.

Now, in the figure, 5 is the main body of the lower drain pipe joint (hereinafter referred to as the lower main body), which is inserted into the through hole 2 of the slab 1, and has a straight pipe-shaped upper connection port 6 at its upper part. At the bottom, there is provided an expanded portion 7 in which the outer diameter of the upper connection port 6 is expanded into a stepped large diameter shape.
A side connection port 8 for connecting a side branch pipe is provided on one side (right side as viewed in the figure). The figure also exemplifies a technique in which a side branch pipe connection port 8A is provided on the side surface on the rear side of the expanding portion 7 at the same level as the connection port 8. Next, the lower main body 5 is provided with a downwardly tapered funnel part 9 below the expansion part 7, and a straight pipe-shaped lower connection port 10 below the funnel part 9.

Next, reference numeral 11 denotes the main body of the upper drainage pipe joint (hereinafter referred to as the upper main body), which is equipped with a straight pipe-shaped upper connection port 12 at the upper part, and a horizontal branch on one side of the center part (right side as viewed in the figure). Side connection port 13 for connecting pipes
It also has a straight pipe-shaped lower connection port 14 at its lower part. The lower connection port 14 has an outer diameter slightly smaller than the inner diameter of the upper connection port 6 of the lower main body 5, and there is no packing between the outer circumferential surface and the inner circumferential surface of the upper connection port 6 of the lower main body 5. 15 to maintain watertightness while connecting the upper connection port 6 of the lower body.
It is inserted by a plug-in method.

Further, a settling ring 17 is fitted between the inner circumferential edge of the upper end of the upper connection port 6 of the lower body 5 and the outer circumferential surface of the lower connection port 14 of the upper body 11. It is formed so that it can be fixed to the lower connection port 14. Moreover, the lower connection port 14 is integrally joined to the side connection port 13 via a joint portion 16 having an arcuate portion of approximately 1/4 circumference on the lower surface of the connection with the side connection port 13.

Therefore, by loosening the set screw 18 appropriately, the upper body 11 can be inserted into the lower body 5 by the amount with the lower limit being the point where the arc portion of the lower surface of the joint portion 16 abuts the upper end periphery of the settling ring 17. You can insert it while adjusting it. Moreover, the upper body 1
1, the insertion amount is finely adjusted downward from the level L of the upper end of the inner peripheral surface of the side connection ports 8, 8A of the lower main body 5 until the lower edge 14A of the lower connection port 14 reaches the above-mentioned lower limit. After adjusting, tighten the set screw 18.
It is formed so that it can be positioned and supported relative to the lower main body 5 by screwing. That is, in this embodiment, the lower limit of insertion of the upper body 11 into the lower body 5 can be regulated by means of bringing the arcuate portion of the joint portion 16 into contact with the settling ring 17. Moreover, when the insertion of the upper body 11 reaches the lower limit, the upper body 11
Even when the lower end edge 14A of the lower connection port 14 reaches the level M shown by the chain line, the upper main body 11
The flow passage cross-sectional area secured by the gap H between the lower end peripheral edge 14A of the lower connection port 14 and the inner peripheral wall of the lower main body 5 is larger than the effective cross-sectional area of the side connection port 8 of the lower main body 5. It is formed to be.

As is clear from the above description, in this embodiment, the amount of insertion of the upper body 11 into the lower body 5 can be finely adjusted within the range up to the above-mentioned lower limit. Side connection port 1
Height h above the finished floor 3 of the lateral branch pipe P connected to 3
By finely adjusting the size of the pipe P according to the height of the toilet bowl and other appliances connected to the side branch pipe P, the number of man-hours and construction period for piping can be significantly reduced.

Further, even when the insertion of the upper body 11 into the lower body 5 reaches the lower limit, the flow passage cross-sectional area of the upper body is larger than the effective cross-sectional area of the horizontal branch pipe Q connected to the side connection port 8 of the lower body 5. 11 and the inner circumferential wall of the lower body, the horizontal branch pipe Q
Allows drainage water to flow downward smoothly.

In addition, in this embodiment, since the expanded portion 7 is provided in the center of the lower main body 5, it is very convenient to form the interval H shown in the figure, and it is possible to smoothly flow the waste water from the side branch pipe Q. can. In addition, in this embodiment, the upper connection port 12 and the side connection port 13 of the upper body 11 and the side connection port 8 of the lower body 5 are inserted in the same manner as the upper connection port 6 of the lower body 5. to connect the drain pipes respectively, and to the lower connection port 10 of the lower main body 5,
Techniques for connecting the lower drain pipe R via a stop flange 19, packing 20, and bolts are each illustrated.

In this embodiment, since the horizontal branch pipe Q of the lower main body 5 is housed within the interval 4 between the slab 1 and the finished floor 3, it is piped above the slab 1 together with the horizontal branch pipe P mentioned above. ing. Therefore, slab 1
Even if the upper dwelling unit and the lower dwelling unit of the slab 1 belong to different owners, the ownership classification of the piping becomes clear, which is convenient for building management.

Next, another embodiment will be explained with reference to FIG.
In this embodiment, the upper main body 21 and the lower main body 25 are provided with side branch pipe connection ports on the left side of the figure, and the side branch pipes 2P,
2Q are connected to each other by a plug-in method. The other points are the same as those of the embodiment shown in FIG. 1, so the explanation will be omitted.

In both of the above embodiments, as means for regulating the lower limit of insertion of the upper body into the lower body,
Although the technique of bringing the arcuate portion formed at the joint between the lower connection port and the side connection port of the upper body into contact with the settling ring has been exemplified, the present invention is not limited to this; A technique in which a flange-shaped stopper is protruded from the outer peripheral surface of the lower connection port of the lower body and the stopper is brought into contact with the upper end of the upper connection port of the lower body, or the lower edge of the upper body is brought into contact with the inner peripheral wall of the lower body. Techniques such as providing a stopper to prevent this from happening are expected.

Furthermore, it is obvious that the packing at each connection port of the upper body and the lower body is not limited to the one shown in the drawings, but may be of any type as long as it can maintain watertightness.

That is, in the irregularly shaped pipe joint device according to the present invention, the connection port for connecting the gray water pipe, etc. is provided on the side of the lower part of the upper drainage pipe joint, which has the connection port for connecting the waste water pipe, etc., on the side. In an upper and lower two-layer type drainage pipe joint device which combines lower drainage pipe joints, the lower end of the upper drainage pipe joint is connected to the inside of the upper end of the lower drainage pipe joint. , the upper drainage pipe joint is inserted to maintain watertightness by interposing the packing, and the insertion depth can be adjusted by the insertion method, and the upper drainage pipe joint is connected to the side connection port of the lower drainage pipe joint. The insertion depth can be adjusted with the lower limit being a position where a flow passage cross-sectional area greater than the effective flow passage cross-sectional area is secured between the lower end green of the upper drainage stand pipe joint and the inner wall surface of the lower drainage stand pipe joint. The height of the vertical pipe joint at the top can be finely adjusted to suit the height above the finished floor surface of the sewer pipe connected to the toilet, for example, reducing the time and labor required for constructing the sewer pipe. can be significantly reduced.

In addition, in the irregularly shaped pipe joint device of the present invention, even when the insertion of the upper drainage pipe joint into the lower drainage pipe joint reaches the lower limit, the flow path of the connection port on the side of the lower drainage pipe joint Cross-sectional area is secured. In other words, a flow passage cross-sectional area larger than the flow passage cross-sectional area of the side connection port of the lower drainage stand pipe joint is ensured between the lower edge of the lower drainage stand pipe joint and the inner wall surface of the lower drainage stand pipe joint. As a result, the drainage water from the connection port on the side of the lower drainage stand pipe joint can be smoothly flowed downward, and the effect of the present invention is extremely large.

Note that the technical idea of the present invention also regulates the lower limit of insertion when using a drain pipe member with a straight pipe section at the lower end instead of an upper drain pipe joint with a connection port on the side. By providing means, it can be widely applied.

[Brief explanation of the drawing]

The drawings show embodiments of the present invention; FIG. 1 is a front view in a center cross section of one embodiment, and FIG. 2 is a front view in a center cross section of another embodiment. 1...Slab, 2...Through hole, 5, 25...The main body of the lower drainage standpipe joint, 11, 21...The main body of the upper drainage standpipe joint.

Claims (1)

[Claims] 1. Combine the lower part of the upper drainage pipe joint with the side part with the connection port for connecting the gray water pipe, etc. with the lower part of the upper part of the drainage pipe joint with the side part with the connection port for connecting the gray water pipe, etc. In the upper and lower two-layer drainage pipe joint device, the lower end of the upper drainage pipe joint is kept watertight by intervening packing to the inside of the upper end of the lower drainage pipe joint. The insertion depth can be adjusted by an insertion method, and the upper drainage pipe joint has a flow path larger than the effective flow cross-sectional area of the side connection port of the lower drainage pipe joint. A drain stand characterized in that the lower limit of the cross-sectional area is a position secured between the lower end of the upper drain stand pipe joint and the inner wall surface of the lower drain stand pipe joint, and the insertion depth can be adjusted. Deformed pipe fitting device for pipes.