JPH11248070A - Drain pipe fitting - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a drain pipe fitting which is installed on the way of a draining riser pipe, can give a swirl to the drainage flowing down, and allows easy execution of a full water test. SOLUTION: A pipe fitting is equipped with a connection hole 11 for upper riser pipe, a body part 12 including a trunk part 13A in the form of straight pipe, a tapered pipe portion 17, a first revolving guide 30 and second revolving guide 32, and a connection hole 19 for lower riser pipe. The body part 12 has an upper mounting seat 14 and lower mounting seat 15 formed protrusively on the inside of the trunk part 13A and admitting mounting of a jig for full water test and an insert hole 20 for the jig formed opening beside the seats 14 and 15, and in normal condition, the insert hole 20 is closed tightly with a seal lid 25.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a drain pipe joint for forming a swirling flow in drain water flowing down a drain stack in a multi-story building.

[0002]

2. Description of the Related Art Conventionally, in a single-pipe drainage ventilation pipe structure provided in a multi-story building, a collecting pipe joint connected to a drainage device of each level and a collecting pipe joint of each level are connected vertically. And a drain stack connected at the other end to the horizontal drain main pipe.

[0003] A swirl flow is formed in the drainage flowing into the collecting pipe joint of each floor to form an air core at the center of the drainage flow.
The air pressure fluctuation in the pipe was suppressed by reducing the flow rate while venting the drain pipe system.

In general, the swirling flow forming means is provided with one or a plurality of spiral or blade-shaped swirling guides in the main body of the collecting pipe joint, and discharges the water flowing into the collecting pipe joint into a swirling flow. The swirling flow was formed by applying and decreasing the flow velocity. In addition, on floors where drainage equipment is not provided, so-called skip piping in which the upper and lower drainage pipes leading to that floor were connected with a straight tubular socket or made unjointed, omitting the collecting pipe joint, was performed. .

[0005] Further, in the drainage system of a multi-story building, when the construction of the facility is completed, a drainage test is performed in which the drainage pipes are filled with water for each floor and the presence or absence of leakage is inspected. In this water filling test, generally, a fitting for water filling test is provided in a drain stack,
There are a method of using a jig for fullness test and a method of using a test ball for fullness test using a cleaning port such as a collecting pipe joint.

[0006] A method of using a jig for full-water test is that a jig for full-water test to which a jig for full-water test can be attached is installed beforehand in the middle of a drainpipe, and the joint is filled with water during a full-water test. A jig for a water filling test was attached to the vessel, the pipe of the drain stack was cut off, and the drain pipe to be tested was filled with water to perform a water filling test.

Further, a method using a test ball for a water-full test includes, as test instruments, a test ball provided at the tip of an air hose and expandable by air pressure, and an air pump for pumping air to the test ball. The test ball is inserted through the cleaning port to enter a predetermined position in the drain stack, and air is further pumped into the test ball to expand it, and the drain pipe is cut off and filled with water to test for water level. Had been done.

[0008]

However, in such a conventional drainage pipe system, the former using the fullness test jig shown in the former, a collecting pipe joint with a swivel guide and a fullness test are provided for each level. However, there is a problem that the cost of the drainage pipe system becomes high due to the necessity of a joint for use in the drainage system. The latter using a test ball for a water-full test has a problem in that the operation of inserting and feeding the test ball into the drain stack, confirming the position, and further performing the pressure feeding of air becomes complicated.

Also, at the level where the skip piping is performed,
Since the drainage of the upper floor flows down the drainage stack as it is, the swirlability of the drainage flow is weakened, the flow velocity is increased, and a large negative pressure is generated in the pipe. For example, when two skipped pipes are continuous, there is a problem that the pressure fluctuation in the pipe due to drainage extends to the upper and lower levels of the skipped pipe. For this reason, conventionally, in order to suppress air pressure fluctuations, a swivel-guided collecting pipe joint is also installed at a level where skip piping is provided, and imparts swirlability to drainage water flowing down,
The formation and deceleration of the air core was performed.

[0010] The present invention has been made in view of the above, and an object of the present invention is to provide a drainage pipe joint that is installed in the middle of a drainage stack pipe and can impart swirlability to draining water flowing down. In addition, it is an object of the present invention to provide a drainage pipe joint capable of easily performing a full water test.

[0011]

SUMMARY OF THE INVENTION The present invention has been made to achieve the above object, and a drain pipe joint according to a first aspect of the present invention comprises an upper standpipe connection port for connecting an upper standpipe, At least one swivel guide having a straight tubular body and a tapered downwardly tapered pipe below the straight pipe body, which is provided continuously below the riser connection port, and which is formed to project from the inner peripheral wall. And a lower standpipe connection port provided below the main part and connected to a lower standpipe. The main part is formed so as to protrude inside the side wall of the straight pipe body and is used for a water filling test. It has a mounting seat to which a jig can be mounted, and a filling test jig insertion opening formed in the side wall of the straight pipe body on the side of the mounting seat, and the filling test jig insertion opening is always provided. A drainage pipe joint characterized by being sealed with a sealing lid.

A drain pipe joint according to a second aspect of the present invention is an upper standpipe connection port for connecting an upper standpipe, a straight tubular straight pipe body section provided below the upper standpipe connection port, and the straight pipe body. A main body having a downwardly tapered tapered tube below the part and having at least one swivel guide protruding from an inner peripheral wall; and a lower stand provided below the main body and connecting a lower standpipe. A pipe connection port; and
A drain pipe joint having a side opening for a water filling test port and a cleaning port formed on a side wall of the straight pipe body, and wherein the side opening is always sealed with a sealing lid. .

[0013] A drain pipe joint according to a third aspect of the present invention is an upper standpipe connection port for connecting an upper standpipe, a straight tubular straight pipe body section provided below the upper standpipe connection port, and the straight pipe body. A main body having a downwardly tapered tapered tube below the part and having at least one swivel guide protruding from an inner peripheral wall; and a lower stand provided below the main body and connecting a lower standpipe. And a pipe connection port.

According to a fourth aspect of the present invention, there is provided the drainage pipe joint according to any one of the first, second, and third aspects, wherein the turning guide is asymmetric with respect to the pipe axis. The first turning guide includes a first turning guide and a second turning guide which are provided to face each other. The second swivel guide is disposed such that the upper end in the length direction of the protruding edge is disposed at substantially the same height as the upper end of the tapered tube portion, and is opposed to the first swivel guide. It is a drainage pipe joint characterized by the above-mentioned.

A drainage pipe joint according to a fifth aspect of the present invention is the drainage pipe joint according to any one of claims 1, 2 and 3, wherein the turning guide is symmetrical with respect to a pipe axis. A drain pipe joint comprising a plurality of turning guides provided to face each other.

A drainage pipe joint according to a sixth aspect of the present invention is the drainage pipe joint according to any one of claims 1, 2 and 3, wherein the main body portion is formed at least on a projecting inner wall. A drain pipe joint comprising one deceleration guide and at least one turning guide.

[0017]

Embodiments of the present invention will be described below with reference to the drawings.

FIGS. 1 to 6 show a first embodiment of the present invention. In FIG. 1 to FIG. 6, a drain pipe joint indicated by reference numeral 10A includes an upper standing pipe connection port 11, a straight pipe body 13A and a tapered pipe 1
7, the first turning guide 30, the second turning guide 32
And a lower riser connection port 19 provided below the main body 12, and the main body 12 is provided with a jig for a water-filled test protruding inside the side wall of the straight pipe body 13 </ b> A. An upper mounting seat 14, a lower mounting seat 15, and a jig insertion opening (hereinafter abbreviated as a jig insertion opening) formed on the side of the upper mounting seat 14 and the lower mounting seat 15 as a mounting seat. )
20, the jig insertion opening 20 is always sealed with a sealing lid 25, and the first turning guide 30 and the second turning guide 32
It is arranged to be asymmetrically opposed to the tube axis Y-Y.

The upper stack connection port 11 is formed so that an upper stack 40 hanging down from the upper floor can be connected while maintaining a watertight state by using packing (not shown).

The main body 12 has a straight tubular body 13A having a diameter larger than that of the upper standpipe 40 in the upper half, and a tapered tube 17 tapering downward in the lower half. ing.

The inner diameter of the straight tube body 13A is
The inner diameter D is formed to be 1.0 to 2.0 times the inner diameter D, and a jig insertion opening 20 through which a fullness test jig 50 and a cleaning nozzle (not shown) to be described later can be inserted is formed on the side wall. Have been. The jig insertion port 20 has a sealing lid 25.
Are removably attached by bolts 29 via packing (not shown).

The jig insertion opening 2 is provided on the inner peripheral wall of the straight tube body 13A.
An inward flange-shaped upper mounting seat 14 is protruded at an upper end height position of 0, and an inward flange-shaped lower mounting seat 15 is also protruded at a lower end height position of the jig insertion port 20. ing. The diameters of the protruding edges of the upper mounting seat 14 and the lower mounting seat 15 are formed to be the same as the inner diameter D of the upper standing pipe 40, and a jig insertion port is provided between the upper mounting seat 14 and the lower mounting seat 15. A jig insertion space 21 leading to 20 is formed.

The lower end of the straight tube body 13A is continuous with the upper end of the tapered tube portion 17 at the bending portion 16, and at the lower end of the tapered tube portion 17,
A lower standpipe connection port 19 with a flange is provided, and the lower standpipe connection port 19 is formed such that the upper end of the lower standpipe 41 can be connected to a watertight state by using packing.

The sealing lid 25 is formed so as to be able to close the jig insertion opening 20, and is formed inside the sealing lid 25 with a cylindrical portion 26 having a vertical axis. Is formed to have the same inner diameter as the inner diameter D of the upper standing pipe 40. The sealing lid 25 is always disposed coaxially below the upper standing pipe 40, with the inner wall of the tubular portion 26 and the protruding edges of the upper mounting seat 14 and the lower mounting seat 15 continuing continuously. The jig insertion opening 20 is sealed, and the bolt 29
It is attached by.

The first swivel guide 30 has a horizontal plane projection of 1
And is formed within the circumference of / 2, and is provided so as to protrude inward from the inner peripheral wall at the lower part of the straight pipe body 13A to the inner peripheral wall at the upper part of the tapered pipe part 17. Projecting edge 3 of first turning guide 30
1 is formed in a linear shape, and the protruding end edge 31 is provided to be inclined downward and downward (in this example, approximately 40 degrees to the left) in the length direction when viewed from the tube axis side, and before the inward projection. The inclination angle is formed downward by about 5 degrees in this example.

The lower left tilt angle of the first turning guide 30 is as follows.
From the viewpoint of the lead angle of the smooth winding of the first swirling flow S1 to be formed and the deceleration effect of the inflowing drainage flow, it is 30 to 30 degrees below the horizontal line.
It is preferable to be downward in the range of 50 degrees, and it is preferable that the forward inclination angle is downward in the range of 0 to 15 degrees from the horizontal line. Further, the central portion in the length direction of the protruding edge 31 is formed at substantially the same height position (up and down position along the tube axis Y-Y) as the refraction portion 16, and the protruding edge 31 and the tube axis Y-Y are formed.
Is formed in the range of 0.2 to 0.5D.

The second turning guide 32 has a horizontal plane projection of 1
/ 2 circle, and the tapered tube portion 1 on the opposite side of the first swivel guide 30 across the tube axis Y-Y.
7 is provided on the inner peripheral wall so as to protrude inward. The protruding end edge 33 of the second turning guide 32 is formed in a straight line, and is provided so as to be inclined downward and downward (approximately 60 degrees leftward in this example) in the length direction when viewed from the tube axis side, and inward. The protruding forward tilt angle of
It is formed about two degrees downward.

The lower left tilt angle of the second turning guide 32 is
From the viewpoint of preventing a faucet phenomenon and the lead angle of the smooth winding of the second swirling flow S2 to be formed, it is preferable that the angle is downward within a range of 45 to 75 degrees from the horizontal line, and the forward inclination angle is greater than the horizontal line. It is preferable that the angle is downward in the range of 0 to 15 degrees. The upper end of the protruding edge 33 is formed at substantially the same height position as the bending portion 16, and the lower end of the protruding edge 33 is formed so as to converge on the inner peripheral wall below the tapered tube portion 17. I have.

The distance N (see FIG. 3) between the projecting edge 33 and the tube axis YY is formed in the range of 0.2 to 0.5 D, and the projecting edge 33 and the first turning guide are formed. 30 projecting edges 3
The shortest linear distance P (see FIG. 3) between the first and second distances is set to at least 1.0D. In the illustrated example, the protruding edge 31 and the protruding edge 33 are formed in a parallel relationship in the projection of the horizontal plane, but the projection of the two horizontal planes is not limited to the parallel relationship.

The drainage pipe joint 10A thus configured
Is provided for each layer in the middle of a drainage stack (a general term for all uprights including the upper uprights 40, 40a and the lower uprights 41, 41a, which will be described later).

FIG. 7 shows an example of the installation of the drainage pipe joint 10A. The upper standpipe connection port 11 of the drainage pipe joint 10A has a straight T-shaped pipe joint provided on the upper floor via the upper standpipe 40. The lower standpipe connection port 19 is connected via a lower standpipe 41 to the upper end of a straight tubular T-shaped joint 43 provided on this floor.

The upper end of the T-shaped fitting 43 on the upper floor is connected to an upper standing pipe 40a extending further upward, and the lower end of the T-shaped fitting 43 on this floor is connected to the lower standing pipe 41a extending further downward. ing. Further, a drainage device such as a toilet 45 is connected to each T-shaped pipe joint 43 via a horizontal branch pipe 44.

The drainage pipe joint 10A is installed at an arbitrary height above the concrete slab 47. For example, in consideration of workability at the time of a water filling test and cleaning in the pipe, the drainage pipe joint 10A is about 1.3 m above the floor.
It is installed at the height of. In FIG. 7, reference numeral 48 denotes a wall surface of a building, and a maintenance opening 48 a is provided corresponding to the height of the jig insertion port 20.

Next, the flow of drainage in the drainage fitting 10A will be described.

The drainage flowing in the upper stack 40 is usually
Water flows down with a water film stretched on the inner wall surface of the pipe, and an air core is formed on the inner peripheral side of the water film. Upper stack connection 1
The drainage W (indicated by a dashed arrow W in FIG. 8) that has flowed into the main body 12 from FIG. 1 falls along the inner wall of the cylindrical portion 26, and a part of the water W reaches the upper surface of the first turning guide 30, and the other water W Some are second
It reaches on the turning guide 32.

The drainage W that has reached the first turning guide 30 is guided by a downward slope to change its course, is reduced in speed and imparts turning properties, and is turned counterclockwise (in plan view). One swirling flow S1 flows into the lower part of the tapered pipe portion 17. Also, the drainage W that has reached the second turning guide 32 is
The swirling property is imparted by being guided by the downward slant, and becomes the second swirling flow S <b> 2 counterclockwise (in plan view) to flow down the tapered pipe portion 17. Further, the remaining drainage W is received by the tapered pipe portion 17, changes its direction by contacting the lower surface side of the second turning guide 32, and flows down while being given a counterclockwise turning property.

Then, the first swirling flow S1 and the second swirling flow S2
And the flow of the remaining part merge below the tapered pipe part 17 and flow down. This confluence is caused by the second swirl flow S2 having a large lead angle.
And the rest of the flow, the first swirl flow S1 with a small lead angle
Merge, so that the second swirling flow S2 and the remaining flow are further deflected and decelerated by the influence of the flow of the first swirling flow S1, so that the lead angle becomes smaller than that of the second swirling flow S2. The combined flow is reduced and decelerated, and flows down as an integrated swirling flow while holding the air core in the pipe shaft portion.

As described above, the wastewater that has flowed into the drainage pipe joint 10A is effectively swirled and decelerated, and flows down as a swirling flow. Therefore, the pipe axis Y is provided in the drainage pipe joint 10.
An air core in the -Y direction is formed to provide ventilation between the upper stack 40 and the lower stack 41, thereby effectively suppressing air pressure fluctuations in the drain pipe system.

Next, a description will be given of a water filling test using the drain pipe joint 10A.

For this fullness test, for example, a known fullness test jig 50 as shown in FIG. 9 is used.

The full-water test jig 50 includes a drain pipe joint 10A.
A closing lid 51 that can be pressed against the lower surface of the upper mounting seat 14, a fixed lid 52 that can be pressed against the upper surface of the lower mounting seat 15, and a gap between the closing lid 51 and the fixed lid 52 that can be adjusted. It comprises a communication pipe 53 communicating between the upper part of the lid 51 and the lower part of the fixed lid 52, and an opening / closing valve 54 capable of opening and closing the conduit of the communication pipe 53. Reference numeral 51a denotes an annular packing provided on the outer periphery of the upper surface of the closing lid 51,
53a is an adjusting nut for adjusting the interval.

In the water filling test, the sealing lid 25 of the drain pipe joint 10A installed on the floor below the test object floor is removed, and the water filling test jig 50 is inserted through the jig insertion port 20 into the jig insertion space 21.
Insert into Then, the fixing lid 52 of the jig 50 for full water test is set.
Is fixed on the lower mounting seat 15, the adjusting nut 53 a is adjusted to raise the closing lid 51, the packing 51 a is brought into close contact with the lower surface of the upper mounting seat 14, the on-off valve 54 is closed, and the communication pipe 53 is connected. Is shut off (see FIG. 10). Thereby, the upper standpipe 40 and the lower standpipe 41 are shut off, and the closing lid 51 is closed.
The upper drainage line is filled with water, and a fullness test is performed according to a predetermined standard.

When the water filling test is completed, the on-off valve 54 is opened, and the water above the closing lid 51 is discharged to the main body 12 through the communication pipe 53 and discharged to the lower standing pipe 41. Then, the jig for full water test 50 is taken out from the jig insertion port 20, and the jig insertion port 20 is sealed by the sealing lid 25. The jig insertion port 20 can also be used for cleaning the inside of a pipe by inserting a cleaning nozzle.

As described above, according to the drainage pipe joint 10A,
It can be installed at an optional position of the drain stack to easily perform a water filling test and cleaning work in the pipe. In addition, since it has a swirl flow forming function that gives swirl to the inflowing wastewater,
A simple straight T-shaped pipe joint can be used for the drainage collecting pipe joint provided for each floor, and the cost of the drainage pipe system can be reduced.

FIGS. 11 to 15 show a second embodiment of the present invention, which is characterized in that a side opening for a water filling test port and a cleaning port is provided. In the following description, components that are the same as or equivalent to those in the first embodiment are given the same reference numerals, and descriptions thereof are omitted.

The drainage pipe joint 10B according to the second embodiment comprises:
A main body section provided with an upper standing pipe connection port 11, a straight pipe body 13B, a tapered pipe section 17, a first turning guide 30, a second turning guide 32, and a lower standing pipe connection port 19; 12 has a side opening 23 in the straight pipe body 13B, and the side opening 23 is always closed by a sealing lid 27.

The straight pipe body 13B is formed to have a slightly longer length than the straight pipe body 13A of the drainage pipe joint 10A of the first embodiment, and a side opening 23 is formed at the upper part of the side wall of the straight pipe body 13B. Have been.

The side opening 23 is formed so that a test ball 55 for a fullness test and a washing nozzle, which will be described later, can be inserted therein, and the sealing lid 27 is detachably attached via packing. In the illustrated example, the upper stack connection port 11 is formed with a flange.

According to the drainage joint 10B of the second embodiment, the first swivel guide 30 and the second swivel guide 32 substantially reduce and rotate the drainage flow in the same manner as the drainage joint 10A of the first embodiment. Control can be performed. In addition, the drainage pipe joint 10B is installed for each floor in the same manner as the drainage pipe joint 10A (see FIG. 15).

The water filling test using the drain pipe joint 10B is as follows.
For example, a well-known test ball 55 for a fullness test as shown in FIG. 15 is used. Test ball 55 for full water test
The air pump 5 is formed by an air hose 56 having a rubber elasticity and being inflatable by air pressure and having a pressure gauge 57 and a valve 58.
9 so that air can be sent under pressure.

In the water filling test using the test ball 55 for water filling test, the test ball 5 in the contracted state is taken from the side opening 23 of the drainage pipe joint 10B installed on the floor above the floor to be tested.
5 into the drain stack, and the T-shaped fitting 4 on the floor to be tested.
3. Feed into the lower lower standing pipe 41a below. Subsequently, air is pumped from the air pump 59 to inflate the test ball 55 to close the lower duct 41a. Then, the drain pipe above the test ball 55 is filled with water, and a fullness test is performed according to a predetermined standard.

When the water filling test is completed, the air in the test ball 55 is released by the valve 58, and the test ball 55 contracts and is taken out from the side opening 23. The side opening 23 is also used for cleaning the inside of a pipe by inserting a cleaning nozzle, and is normally closed with a sealing lid 27. According to the drainage pipe joint 10B, the position of the side opening 23 can be set to an arbitrary height, so that compared to the conventional collecting pipe joint provided at a low position close to the concrete slab 47 surface, Each of the above operations can be easily performed.

FIGS. 16 to 19 show a third embodiment of the present invention, which is characterized by a simple structure.

The drainage pipe joint 10C according to the third embodiment includes:
An upper stack connection port 11, a main body section 12 having a straight pipe body 13 </ b> C, a tapered pipe section 17, a first turning guide 30 and a second turning guide 32, and a lower stack connection port 19 are provided. , The straight pipe body 13C is the drain pipe joint 1 of the first embodiment.
It has a diameter almost the same as that of the straight tube body 13A of 0A and is slightly shorter.

According to the drain joint 10C of the third embodiment, the first swivel guide 30 and the second swivel guide 32 can control the deceleration of the drain flow and the swirl control in substantially the same manner as the drain joint 10A. it can.

Further, in the same manner as the drainage pipe joint 10A, the drainage that is installed for each floor and flows into the drainage pipe joint 10A from the upper floor flows down to the lower floor as a swirling flow.
Therefore, the drainage pipe system of the skip piping level can be simply configured, and it is not necessary to install an expensive swivel guide-equipped collecting pipe joint on the skip piping level as in the related art.

It should be noted that the present invention is not limited to the above description and examples of the drawings, and the embodiments thereof can be changed without departing from the technical idea of the present invention. For example, in the drainage pipe joints 10A, 10B, and 10C, a plurality of turning guides having the same shape and the same inclination angle are provided with respect to the pipe axis, instead of the first turning guide 30 and the second turning guide 32 that are asymmetrically opposed. It may be provided in a rotationally symmetric manner. Further, it may be a single blade-like or plate-like turning guide.

Also, drainage pipe joints 10A, 10B, 10C
In the above, instead of the first turning guide 30, a deceleration projection having a triangular pyramid shape, a partial spherical shape, a plate shape, or the like which can deviate and decelerate the drain flow may be provided.

[0059]

As described above, according to the drainage pipe joint of the present invention, the drainage pipe is installed in the middle of the drainage stack to impart swirling properties to the drainage flowing down. Can be used as a pipe joint having a simple structure, and a multi-layer, single-pipe vent pipe structure can be formed at low cost.

Further, the one having the jig mounting seat for a full-water test and the jig insertion port for the full-water test has the above-described effects.
In combination with a jig for full-water test, the full-water test can be performed easily and easily, and the inside of the pipe can be easily cleaned. In addition, those having a side opening can easily perform a fullness test in combination with a fullness test ball, and can easily clean the inside of the pipe.

Further, it is installed at the level of the skip piping,
The swirling flow is formed by a simple configuration, and an effect that air pressure fluctuation in the drainage pipe system can be suppressed is exerted.

[Brief description of the drawings]

FIG. 1 is a longitudinal sectional view of a drain pipe joint according to a first embodiment of the present invention.

FIG. 2 is a longitudinal sectional view showing a state where a sealing lid is removed in FIG. 1;

FIG. 3 is a sectional view taken along line AA of FIG. 1;

FIG. 4 is a front view of the drainage pipe joint shown in FIG. 1;

FIG. 5 is a plan view of the drainage pipe joint of FIG. 1;

FIG. 6 is a sectional view taken along line BB of FIG. 4;

FIG. 7 is an installation example diagram of a drain pipe joint according to the first embodiment.

FIG. 8 is a sectional view showing a flow of drainage flowing from an upper stack pipe.

FIG. 9 is a cross-sectional view showing an example of a jig for a full-water test.

FIG. 10 is a cross-sectional view showing a state in which a jig for a water filling test is attached to a drain pipe joint.

FIG. 11 is a longitudinal sectional view of a drain pipe joint according to a second embodiment of the present invention.

FIG. 12 is a sectional view taken along line CC of FIG. 11;

FIG. 13 is a front view of the drain pipe joint shown in FIG. 11;

FIG. 14 is a sectional view taken along line EE of FIG. 13;

FIG. 15 is an installation example diagram of a drain pipe joint according to the second embodiment.

FIG. 16 is a longitudinal sectional view of a drain pipe joint according to a third embodiment.

FIG. 17 is a sectional view taken along line FF of FIG. 16;

18 is a front view of the drainage pipe joint shown in FIG.

FIG. 19 is a sectional view taken along line GG of FIG. 18;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10A, 10B, 10C Drainage collecting pipe joint 11 Upper stack pipe connection port 12 Main body section 13A, 13B, 13C Straight pipe body section 14 Upper mounting seat 15 Lower mounting seat 17 Tapered pipe section 19 Lower stand pipe connection port 20 Tool insertion opening 23 Side opening 25, 27 Sealing lid 30 First swivel guide 32 Second swivel guide 40 Upper stack 41 Lower stack 50 Jig for water filling test 55 Test ball for water filling test

Claims (6)

[Claims] 1. An upper standpipe connection port for connecting an upper standpipe, a straight tubular straight pipe body connected below the upper standpipe connection port, and a downward tapered shape below the straight pipe body. A main body part having a tapered pipe part and having at least one turning guide protrudingly formed on an inner peripheral wall; and a lower standpipe connection port provided below the main body part and connecting a lower standpipe, The main body has a mounting seat protruding inside the side wall of the straight pipe body and capable of mounting a fullness test jig, and a fullness test jig insertion opening formed on the side of the mounting seat. And a drainage pipe joint, wherein the insertion port of the jig for full water test is always sealed with a sealing lid. 2. An upper standpipe connection port for connecting an upper standpipe, a straight tubular straight pipe body connected below the upper standpipe connection port, and a downward tapered shape below the straight pipe body. A main body part having a tapered pipe part and having at least one turning guide protrudingly formed on an inner peripheral wall; and a lower standpipe connection port provided below the main body part and connecting a lower standpipe, The main body has a side opening for a water filling test port and a cleaning port formed on a side wall of the straight pipe body, and the side opening is always sealed with a sealing lid. Drainage fittings. 3. An upper standpipe connection port for connecting an upper standpipe, a straight tubular straight pipe body connected below the upper standpipe connection port, and a downward tapered shape below the straight pipe body. A main body part having a tapered pipe part and having at least one swivel guide protruding from an inner peripheral wall; and a lower standpipe connection port provided below the main body part and connecting a lower standpipe. A drain pipe joint characterized by the following. 4. The drainage pipe joint according to claim 1, wherein the swivel guide is asymmetrically opposed to a pipe axis. The first turning guide includes a turning guide and a second turning guide. The first turning guide has a protruding end edge in the longitudinal center thereof disposed at substantially the same height as the upper end of the tapered tube portion. A drain pipe joint, wherein the guide has a protruding edge having a longitudinal upper end disposed at substantially the same height as an upper end of the tapered pipe portion and facing the first swivel guide. . 5. The drainage pipe joint according to claim 1, wherein the swivel guide is provided symmetrically with respect to a pipe axis. A drainage pipe joint comprising a swivel guide. 6. The drainage pipe joint according to claim 1, wherein the main body is formed with at least one reduction guide protruding from an inner peripheral wall, and at least one reduction guide. A drain pipe joint comprising one swivel guide.