JP2912827B2 - Drainage piping members - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a drainage pipe member which is used in a high-rise building or the like where a vertical drainage pipe and a horizontal branch pipe are joined.

[0002]

2. Description of the Related Art FIG. 5 shows a conventional drainage pipe member 50.
The enlarged-diameter chamber 53 having an upper joint port 51 and a lateral joint port 52 of the lateral branch pipe 8 on the side face, and is provided in a lower part of the lower part of the enlarged-diameter chamber 53 so as to be drained. And a tapered chamber 55 having a lower joint opening 54 of the standing pipe 2.

A semi-cylindrical hanging wall 56 having a diameter slightly smaller than that of the upper joint opening 51 is provided inside the enlarged diameter chamber 53, and an inner peripheral surface of the hanging wall 56 has an upper edge. The drift plate 57 is provided in a state of being inclined from the portion to the lower edge. Further, inside the tapered chamber 55, a single swirl flow regulating plate 58 having an inclination along the same spiral direction is provided at a position where the drainage flow deflected by the deflector plate 57 is received.

Therefore, the drainage water flowing down from the upper joint port 51 hits the drift plate 57 and is directed obliquely downward, and is guided by the swirl flow regulating plate 58 to the inner peripheral surface of the expanded diameter chamber 53 or the tapered chamber 55. Since a swirling flow is induced along the peripheral surface, an air core is formed on the lower drainage pipe 2 side, thereby preventing a flow obstruction.

[0005] However, when only one swirl flow regulating plate 58 is provided, the effect of swirling the drainage flow is small, and a sufficient swirl flow cannot be generated, so that the air core may not be easily formed. . For this reason, 5-6
As disclosed in Japanese Patent Application Laid-Open No. 1414, a piping member in which a plurality of turning rectifying plates are equidistantly provided on the inner peripheral surface of a tapered chamber has also been proposed.

[0006]

In the apparatus disclosed in the above publication, since a plurality of turning rectifying plates are provided, a relatively good turning force can be applied. However, when a plurality of swirl flow regulating plates are provided in the tapered chamber, the inner diameter effective for the passage of solids is narrowed by being restricted between the protruding ends, and the solids contained in the drainage flow pass through the tapered chamber. If this is attempted, there is a problem that the turning straightening plate is caught on the protruding end portion, and in a severe case, clogging occurs. In recent years, in order to ensure the smooth passage of solids, a test ball is put into a tube, but it is difficult to pass the test ball.

SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and provides a drainage pipe member capable of securing a sufficient passage of solids in a tapered chamber without lowering a turning force. With the goal.

[0008]

According to the present invention, there is provided a drainage pipe member comprising: an expanded chamber having an upper joint portion of a drainage riser at an upper portion and a lateral joint portion of a horizontal branch pipe at a side portion. A drainage pipe member comprising:
A deflector for diverting the drain flow from above into the upper part of the expansion chamber.
A flow plate is provided, and a plurality of swirling baffles inclined to cause a swirling flow in the drainage flow are provided on the inner peripheral surface of the tapered chamber, and these swirling baffles have different projection amounts. Is formed. In this case, turning the rectifying plate corresponding to uneven flow of the waste water stream flowing down from the bulge chamber forms large amount of projection, the other turning the rectifying plate is formed small and the amount of protrusion
I have.

[0009]

Since a plurality of swirl flow regulating plates are provided on the inner peripheral surface of the tapered chamber, a sufficient swirling force can be applied to the drain flow. In addition, since the swivel plates have different amounts of protrusion, the size of the swivel plate to which the main stream of drainage hits is increased, and the amount of protrusion of the other swivel plates is reduced. The effective inner diameter formed between the protruding ends of the plates can be increased.

[0010] Particularly, in the case where a deflector plate for preliminarily diverting the drainage flowing down to the expansion chamber is provided, the swirl plate for receiving the flow of the drainage deflected by the deflector is enlarged, thereby providing a powerful swirl for drainage. A force can be applied, and the drainage flowing into the expanded diameter chamber from the horizontal branch pipe can be efficiently swirled by another swirl flow regulating plate.

[0011]

Embodiments of the present invention will be described below with reference to the drawings. As is clear from FIG. 1 showing an embodiment of the piping member 1 according to the present invention, the piping member 1 also basically has a bulging chamber 3 having a diameter larger than the drainage riser 2, And a tapered chamber 4 provided in the lower part of the lower part of FIG. In addition, an upper joint opening 6 is provided above the enlarged diameter chamber 3 and a lower joint opening 7 is provided below the tapered chamber 4 so that the drainage pipes 2 can be inserted and held coaxially with each other. At the same time, a lateral joint opening 10 (shown on three sides in the drawing) is provided on the side surface of the expanded diameter chamber 3 to enable joining of the lateral branch pipe 8.

In the expansion chamber 3, a drift plate 14 is protruded from an inner wall portion 12 of a side portion where the lateral joint opening 10 is not provided. As shown in FIG. 2, the drift plate 14 has two upper and lower joints, one of which is located at an upper end, and the other is located at a lower end, between the two lateral joining ports 10 which are positioned opposite to each other with the expanded diameter chamber 3 interposed therebetween. It is provided so as to be inclined. At the upper part near the upper end and the lower part near the lower end of the drift plate 14 in the inner wall portion 12, directivity limiting pieces 18 and 19 each having a triangular side shape are provided. It is scattered around the horizontal direction and is prevented from flowing into the horizontal joint opening 10.

With respect to such an enlarged diameter chamber 3, a plurality of sheets (see FIG. 1) which are inclined along the same spiral direction as the drift plate 14 are provided on the inner peripheral surface of the tapered chamber 7 provided below. (Three in the drawing) turning rectifying plates 23 to 25 are protruded in an equidistant manner. These swirl plates 23 to 25 receive a drift of the drainage flow flowing down from the expanded diameter chamber 3 according to their circumferential positions (hereinafter referred to as “drift swirl plates”).
They are classified into those mainly corresponding to the tributary of the drainage flow flowing down from the horizontal joint opening portion 10 (hereinafter, referred to as “branch swirl flow rectifying plates”) based on their functions. The position of the swirl flow rectifying plate for drift is determined by the position in the height direction with respect to the drift plate 14 and the diameter of the expanded chamber
Although it differs depending on the inner diameter and the like, it may be provided at a position that receives a drift that flows down in the expanded diameter chamber 3 while turning. Now, a description will be given assuming that the swirl flow rectifying plate 23 positioned immediately below the drift plate 14 is used for drift current, and the other swirl flow straightener plates 24 and 25 are used for branch flow.

As shown in FIGS. 3 and 4, the amount of protrusion E from the inner peripheral surface of the tapered chamber 4 of the drift rectifying plate 23 is about two times larger than the amount of protrusion e of the branch rectifying plates 24 and 25. It is formed to be about twice as large. The swirl flow rectifying plate 23 for drift is an enlarged standard size.
The tributary swirl flow rectifying plates 24 and 25 include the drift swivel flow rectifier plate 23.
The standard size has been reduced in accordance with the expansion of. Therefore, the gap between the protruding ends of the respective swirl plates 23 to 25 is maintained at a predetermined diameter or more (to the extent that a test ball T having a diameter of 90 mm easily passes) without substantially increasing the inner diameter of the tapered chamber 4. It has become. In the present embodiment, the respective protrusion amounts E and e are determined so that the blade area ratio of the swirl flow rectifying plate 23 to the tributary swirl flow rectifier plates 24 and 25 is just doubled.

In the pipe member 1 of the present invention thus constructed, the drainage water flowing down from the upper joint port 6 into the enlarged diameter chamber 3 collides with the drift plate 14 and is directed obliquely downward. The swirling flow is guided to the diversion swirling plate 23 and generates a swirling flow along the inner peripheral surface of the enlarged diameter chamber 3 or the inner peripheral surface of the tapered chamber 4. On the other hand, the tributary of the drainage flow flowing into the expanded diameter chamber 3 from the horizontal joint opening 10 is mainly formed by the branching flow straightening plates 24 and 25.
To generate a swirling flow along the inner peripheral surface of the expansion chamber 3 or the inner peripheral surface of the tapered chamber 4. In this way, each of the drainage flows is quickly, reliably, and powerfully swirled.

In the present invention, the positioning in the circumferential direction of the swirl flow regulating plates 23 to 25, that is, the functional classification is appropriately set by the positioning in the height direction with respect to the drift plate 14 and the inner diameter of the enlarged diameter chamber 3 as described above. Is what is done. In the above embodiment, the number of the turning rectifying plates is three,
However, the present invention is not limited to this, and the number of turning rectifying plates may be two or four or more. The wing shape and the like are not limited at all.

[0017]

According to the drainage pipe member of the present invention, since a plurality of swirling straightening plates are provided, and each swirling straightening plate is formed so as to have a different projecting amount, the main flow of the drainage flow can be improved. By making the swirl flow plate receiving the drift current large and the other swirl flow control plates small, the large-diameter solid object passage opening is formed between the protruding portions of each swirl flow control plate without reducing the turning force as much as possible. An area can be ensured, a sufficient swirling flow can be formed without causing obstacles for the passage of solid matter, and there is no danger of a flowing obstacle.

[Brief description of the drawings]

FIG. 1 is a transparent view showing a piping member according to the present invention.

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

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

4A is a cross-sectional view taken along the line CC of FIG. 3, and FIG.
FIG. 4 is a sectional view taken along line DD of FIG.

FIG. 5 is a transparent view showing a conventional piping member.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Plumbing member 2 Drainage riser 3 Expansion chamber 4 Taper chamber 6 Upper joint 7 Lower joint 8 Horizontal branch pipe 10 Horizontal joint 23 Swirling rectifier plate (corresponding to drift of drainage flow) 24 Swirling rectifier Plate (corresponding to tributary of drainage flow) 25 Swirling rectifier plate (corresponding to tributary of drainage flow)

Continuation of the front page (56) References JP-A-6-71456 (JP, A) JP-A-3-140527 (JP, A) (58) Fields investigated (Int. Cl. ⁶ , DB name) E03C 1 / 12 E03C 1/122

Claims (1)

(57) [Claims] An expanded chamber (3) having an upper joint (6) at the upper part of a drainage pipe (2) and a lateral joint (10) of a lateral branch pipe (8) at a side part. ), And a tapered chamber (4) provided in a lower portion of the enlarged diameter chamber (3) and provided with a lower junction port (7) at the lower portion of the drainage riser (2). In the above, the drainage flow from above is deflected to the upper part of the expanding chamber (3).
A plurality of swirling plates (23 to 25) are provided on the inner peripheral surface of the tapered chamber (4). Of these swivel flow regulating plates (23 to 25) ,
(3) Swirling rectifier plate corresponding to the drift of drainage flowing down from
In (23), the protrusion amount is formed large, and other turning rectification is performed.
The drainage pipe member, wherein the plates (24, 25) are formed to have a small protrusion amount .