JPH1025865A - Drainage pipe fitting and method of construction of drainage pipe fitting - Google Patents

Abstract

(57) [Problem] To provide a drainage ventilation pipe joint which can be easily constructed and shorten the construction period, and a method of constructing the drainage ventilation pipe joint. SOLUTION: A concrete floor wall 3 constituting a rooftop floor is provided.
Inside, a driving support 2 having a tubular portion 5 and a receiving portion 6 extending laterally from an upper edge of the tubular portion 5 is integrally embedded, and the receiving portion 6 is After being arranged on the upper surface of the concrete floor wall 3 and the cylindrical portion 5 forms an insertion hole 4 that penetrates the concrete floor wall 3 in the vertical direction, the flange 1 is formed at the lower end.
The coupling tube 10 provided with
Is mounted on the stand, and the flange 6 of the joint pipe 10 is
1 was fixed with a plurality of bolts 13 and the like, and a ventilation pipe 14 having the insertion hole 4 of the concrete floor wall 3 inserted through the lower end of the joint pipe 10 was connected.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a drainage pipe joint used for connecting an upper end of a vent pipe for communicating an upper part of the drain pipe with the atmosphere.

[0002]

2. Description of the Related Art In general, a drain pipe disposed in a building such as a high-rise building has a vent pipe connected to an upper portion thereof, and the drain pipe communicates with the atmosphere by the vent pipe, whereby drainage is performed smoothly. I am trying to be.

[0003] The upper end of such a ventilation pipe penetrates through a concrete floor wall constituting the rooftop of the building and projects upward, and the protruding end is connected to a drainage pipe joint installed on the concrete floor wall. Have been.

As shown in FIG. 4, the drainage pipe joint a has a substantially cylindrical joint pipe c having a disc-shaped flange edge b formed at a lower end. Is erected on the rooftop concrete floor wall d, and its flange b is fixed to the concrete floor wall d by an anchor e comprising a driving plug and a fixing screw.
To fix it. Further, a connection hole f is formed in a lower portion of the joint pipe c, and the upper end of the ventilation pipe g having the concrete floor wall d penetrated is connected to the connection hole f. On the other hand, a communication pipe h is connected to an upper part of the joint pipe c, and a hemispherical cap body j provided with a vent i is attached to an upper end of the communication pipe h.

[0005]

The pipe joint a for drainage and ventilation having such a conventional construction is constructed by cutting a predetermined position of a concrete floor wall d on the rooftop into a circular shape by using an appropriate tool to form a through hole k which penetrates vertically. At the same time, a mounting hole m of the anchor e is formed at a predetermined position around the insertion hole k, and a joint pipe c is erected on the insertion hole k. After being fixed to the mounting hole m, the upper end of the ventilation pipe g inserted from below the insertion hole k of the concrete floor wall d is fitted and connected to the connection hole f of the joint pipe c.
The gap between the ventilation pipe g and the insertion hole k is filled with mortar n so as to close the gap.

As described above, the conventional drainage pipe fitting a is
Since the drainage ventilation pipe joint a is attached to the previously formed concrete floor wall d by a so-called post-installation method, it is troublesome for the solidified concrete floor wall d to have the insertion hole k and the mounting hole m. It is necessary to perform a forming process of a hole, and after connecting a ventilation pipe g to a lower portion of the joint pipe c,
The gap formed between the ventilation pipe g and the insertion hole k is mortar n
However, there is a problem that the construction is troublesome and requires a long construction period. In addition, there is also a problem that a crack occurs in the concrete floor wall d due to the forming process of the insertion hole k and the mounting hole m, and the strength of the floor wall d is reduced.

[0007] Further, in the connection hole f of the conventional joint pipe c,
An annular packing p having a circular cross section is seated, and the packing p is pressed into contact with the outer peripheral surface of the ventilation pipe g fitted into the connection hole f from below, thereby completing the connection and fixing operation of the lower part of the ventilation pipe g. In the meantime, the ventilation pipe g is temporarily held. However, since the annular packing p has a circular cross section, the holding force is small and the ventilation pipe g tends to fall off.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a drainage pipe joint and a method for constructing the drainage pipe joint which can solve the conventional problems.

[0009]

SUMMARY OF THE INVENTION The present invention is directed to a cylindrical portion buried in a concrete floor wall constituting a rooftop floor and having a vertical insertion hole formed in the concrete floor wall; A driving support having a pan extending from the upper edge to the side and disposed on the upper surface of the concrete floor wall; and a standing support mounted on the pan of the driving support; A pipe joint for drainage ventilation, comprising: a lower end provided with a flange edge fixed to a saucer portion by a plurality of bolts and the like; and a joint pipe connected to a vent pipe at a lower end.

[0010] Further, the present invention provides a driving support having a cylindrical portion and a tray portion extending laterally from the upper edge of the cylindrical portion in a concrete floor wall constituting a rooftop floor. After the body is buried integrally, the tray portion is arranged on the upper surface of the concrete floor wall, and the cylindrical portion forms an insertion hole penetrating the concrete floor wall in the vertical direction, and then a flange is provided at the lower end. A joint pipe having an edge is mounted on the receiving portion of the driving support and is erected, and a flange of the fitting tube is fixed to the receiving portion with a plurality of bolts and the like. A method for constructing a pipe joint for drainage ventilation, characterized in that a vent pipe having an insertion hole of the concrete floor wall inserted therein is connected to a lower end portion.

In the drainage pipe joint, an annular groove is provided on an inner peripheral surface of a connection hole formed at a lower portion of the joint pipe, and a plurality of annular tongues extending obliquely upward are provided in the annular groove. The provided packing may be seated, and the annular tongue of the packing may be pressed against the outer peripheral surface of the ventilation pipe fitted into the connection hole from below.

[0012] In this configuration, when the concrete constituting the rooftop floor is poured, the driving support is driven into the concrete, and the driving support is integrally buried in the consolidated concrete floor wall. Thereby, the insertion hole of the ventilation pipe penetrating the concrete floor wall in the up-down direction can be formed by the cylindrical portion of the driving support. In addition, the fitting tube is mounted on the receiving portion of the driving support and is erected, and the flange of the fitting tube is fixed to the receiving portion with a plurality of bolts, so that the mounting can be easily performed. Can be. Thereby, the construction period can be shortened as compared with the related art, and the construction cost can be reduced.

Further, as described above, the tubular portion of the driving support can form the insertion hole of the ventilation pipe penetrating the concrete floor wall in the vertical direction, and the joint is formed in the receiving portion of the driving support. Since the flange edge of the pipe can be fixed, it is not necessary to form various holes in the consolidated concrete floor wall. Therefore, cracks caused by the formation of holes in the concrete floor wall are eliminated. Does not occur.

Furthermore, if a packing having a plurality of annular tongues extending obliquely upward is seated on the inner peripheral surface of the connection hole of the joint tube, the through-hole fitted into the connection hole from below is provided. Since the trachea can be easily inserted into the packing and a strong pressing force against the ventilation tube can be obtained, a large holding force is generated when the ventilation tube is temporarily fixed, and the ventilation tube does not fall off.

[0015]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described with reference to FIGS. In the drawings, reference numeral 1 denotes a drainage pipe joint. Numeral 2 denotes a driving support constituting the pipe joint 1 for drainage ventilation. The driving support 2 includes a tubular portion 5 for forming a vertical insertion hole 4 in a concrete floor wall 3; A circular pan portion 6 extending laterally from the upper edge of the tubular portion 5 and disposed on the upper surface of the concrete floor wall 3. The receiving portion 6 has bulging portions 7 projecting downward at a plurality of predetermined positions, and each of the bulging portions 7 is formed with a vertical screw hole 8 opening upward. Further, an L-shaped anchor 9 embedded in the concrete floor wall 3 is attached to the lower surface of the tray 6 by screwing its upper end.

On the other hand, a joint pipe 10 formed in a substantially cylindrical shape is disposed above the driving support 2. The joint tube 10 is provided at its lower end with a circular flange 11 supported by the tray 6 of the driving support 2, and the flange 11 has a plurality of screw holes of the tray 6. 8, bolt holes 12 are respectively formed.

The joint tube 10 is placed upright on the receiving portion 6 of the driving support 2, and is screwed into the screw hole 8 of the receiving portion 6 through the bolt hole 12 of the flange 11. It is configured to be fixed to the pan 6 by a plurality of bolts 13.

A connection hole 15 for a ventilation pipe 14 for communicating an upper portion of a drain pipe (not shown) with the atmosphere is formed at a lower portion of the joint pipe 10, and is provided on an inner peripheral surface of the connection hole 15. A packing 18 having a plurality of annular tongues 17 extending diagonally upward is seated in the annular groove 16 by bonding or the like. The annular tongue 17 extending obliquely upward facilitates the insertion of the ventilation pipe 14 fitted into the connection hole 15 from below into the packing 18 and, in the fitted state, as shown in FIG. In addition, the annular tongue 17 presses against the outer peripheral surface of the ventilation pipe 14 so that the upper end of the ventilation pipe 14 can be held by a strong pressing force generated by this.

On the other hand, on the upper part of the joint tube 10, a sleeve cover 19 is fixed by a plurality of bolts 20 screwed from the side.
The upper end of the waterproof layer 21 laid from the upper surface of the concrete floor wall 3 to the outer peripheral surface of the joint pipe 10 is covered.

Further, a communication pipe 22 communicating with the joint pipe body 10 is fixedly mounted on the upper part of the sleeve-shaped cover body 19 by fixing a lower end thereof with a plurality of bolts 23 screwed from a side surface thereof. At the upper end of the tube 22, a downward vent 25
Is attached.

Next, a method of installing the drainage pipe joint 1 will be described.

First, at the time of placing the concrete on the concrete floor wall 3 constituting the rooftop floor, the driving support 2 is integrally buried in the concrete, and the receiving portion 6 of the driving support 2 is formed. Is disposed on the upper surface of the concrete floor wall 3 made of the concrete, and the cylindrical portion 5 of the driving support 2 forms an insertion hole 4 penetrating the concrete floor wall 3 in the vertical direction.

Next, the joint tube 10 having the flange 11 at the lower end is mounted on the receiving tray 6 of the driving support 2 and stands upright.
The joint pipe 10 is fixed to the driving support 2 by the bolts 13 by screwing the bolts 13 inserted into the bolt holes 12 of the flange edge 11 into the screw holes 8 of the pan 6.

Next, the insertion hole 4 of the concrete floor wall 3
And the upper end of the ventilation pipe 14 is inserted into the connection hole 15 formed in the lower part of the joint pipe 10 from below and connected. At this time, the ventilation pipe 14 is forcibly inserted into the packing 18 seated on the inner peripheral surface of the connection hole 15, and the plurality of annular tongues 17 of the packing 18 are connected to the ventilation pipe 1.
4 is pressed against the outer peripheral surface to hold the upper end of the ventilation pipe 14.

After that, a waterproof layer 21 is laid from the upper surface of the concrete floor wall 3 to the outer peripheral surface of the joint pipe 10. , Cap body 24 and the like are mounted.

[0026]

As described above, according to the present invention, the cylindrical portion 5 and the cylindrical portion 5 are provided in the concrete floor wall 3 constituting the rooftop floor.
And a receiving part 6 extending laterally from the upper edge of the driving support 2 are integrally buried, and the receiving part 6 is arranged on the upper surface of the concrete floor wall 3 and has a cylindrical shape. After the insertion hole 4 penetrating the concrete floor wall 3 in the vertical direction is formed by the portion 5, the joint tube 10 having the flange 11 at the lower end is mounted on the receiving portion 6 of the driving support 2 and stands upright. A flange 11 of the joint pipe 10 is fixed to the receiving pan 6 with a plurality of bolts 13 and the like, and a lower end of the joint pipe 10 is inserted through the insertion hole 4 of the concrete floor wall 3. Since the trachea 14 is connected, it is not necessary to form various holes in the concrete floor wall 3 consolidated as in the prior art.
Further, the flange 11 of the joint pipe 10 is attached to the pan 6 by a bolt 13.
For example, the fixing time can be easily fixed, so that the construction period can be shortened as compared with the conventional configuration, and the construction cost can be reduced. Also, unlike the conventional configuration in which various holes are formed in the consolidated concrete floor wall 3, cracks due to the formation of holes in the concrete floor wall 3 do not occur, and A decrease in strength can be prevented.

Also, if a packing 18 having a plurality of annular tongues 17 extending obliquely upward is seated on the inner peripheral surface of the connection hole 15 of the joint tube 10, the connection hole 15 can be lowered downward. It is easy to insert the ventilation pipe 14 inserted into the packing 18 into the packing 18, and a strong press-contact force to the ventilation pipe 14 can be obtained. There is an excellent effect such as that 14 does not fall off.

[Brief description of the drawings]

FIG. 1 is a longitudinal sectional view showing a construction state of a drainage pipe joint according to the present invention.

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

FIG. 3 is a longitudinal sectional view showing a state in which a ventilation pipe is connected to a lower part of a joint pipe body in a construction state.

FIG. 4 is a longitudinal sectional view showing a construction state of a conventional pipe joint for drainage and ventilation.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Drainage pipe joint 2 Driving support 3 Concrete floor wall 4 Insertion hole 5 Cylindrical part 6 Receiving part 10 Joint pipe 11 Flange rim 13 Bolt 14 Vent pipe 15 Connection hole 16 Annular groove 17 Annular tongue 18 Packing

Claims (3)

[Claims] 1. A tubular part buried in a concrete floor wall constituting a floor on a roof, forming a vertical insertion hole in the concrete floor wall, and extending laterally from an upper edge of the tubular part. A driving support having a receiving portion that is disposed on the upper surface of the concrete floor wall; and a flange edge that stands on the receiving portion of the driving support and is fixed to the receiving portion. And a joint pipe body to which a vent pipe is connected at the lower end. 2. A driving support having a tubular portion and a tray portion extending laterally from an upper edge of the tubular portion is integrally formed in a concrete floor wall constituting a rooftop floor. And the receiving portion is disposed on the upper surface of the concrete floor wall, and the cylindrical portion forms an insertion hole that penetrates the concrete floor wall in the vertical direction. The joint pipe is mounted on the receiving portion of the driving support and is erected, the flange of the fitting tube is fixed to the receiving portion, and the concrete floor wall is inserted into the lower end of the fitting tube. A method for constructing a drainage ventilation pipe joint, characterized in that a ventilation pipe having a hole inserted therein is connected thereto. 3. An annular groove is provided in an inner peripheral surface of a connection hole formed in a lower part of the joint pipe body, and a packing having a plurality of annular tongues extending obliquely upward is seated in the annular groove. The pipe joint for drainage ventilation according to claim 1, wherein the annular tongue of the packing is pressed against the outer peripheral surface of the ventilation pipe fitted into the connection hole from below.