JPH1136399A - Collecting-pipe joint - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an improved collecting-pipe joint, which is supported stably and in which a support member can be arranged without generating buckling. SOLUTION: The two-stage pipe joint 1 is formed while having an upper stand-pipe joint port 10, a joint section 11, a drum body section 20 and a lower stand-pipe joint port 22, and constituted while an upper-stage horizontal branch- pipe joint section 13 with a horizontal branch-pipe joint port 12 and a lower- stage horizontal branch-pipe joint section 15 with a horizontal branch-pipe joint port 14 are installed in the joint section 11. An annular collar section 17 formed in a diameter larger than a cylindrical trunk section 11a is formed between the upper-stage horizontal branch-pipe joint section 13 and the lower- stage horizontal branch-pipe joint section 15, and a retaining surface 17b retained to a support member is formed on the underside of the annular collar section 17. The two-stage pipe joint 1 is supported by retaining the retaining surface of the support band of the support member to the retaining surface 17b. A tapered pipe section 21 formed in a smaller diameter towards a lower section is shaped on the drum body section 20, and the lower stand-pipe joint port 22 is formed on the tapered pipe section 21.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a collecting pipe joint for connecting a standpipe and a horizontal branch pipe.

[0002]

2. Description of the Related Art In general, drainage stacks and drain horizontal branch pipes in middle- and high-rise apartment buildings are connected to drainage joints at joints. 2. Description of the Related Art In recent years, floors without steps have been required to be designed in houses to prevent the elderly from tripping. To this end, the so-called stepped slab method, in which the level of concrete slabs is reduced, is adopted, especially in places where drain horizontal branch pipes are laid under the floor, such as bathrooms, laundry or kitchen sinks. In general, wall drain type is the mainstream, and when connecting the drain pipe of these toilets and the horizontal branch pipe from the bathroom, washing place or kitchen sink to one drain pipe joint, A two-stage branch collecting pipe joint in which a horizontal branch pipe joint port is formed in upper and lower two stages has been adopted.

A conventional two-stage branch collecting pipe joint 51 is shown in FIG.
As shown in FIG.
The upper horizontal branch pipe joint 53 and the lower horizontal branch pipe joint 54
And a lower horizontal branch pipe joint 54 having
And a body portion 56 having a tapered tube formed below the lower portion. A drain pipe 57 is connected to the upper horizontal branch pipe joint 53 from at least one toilet bowl,
The lower horizontal branch pipe joint portion 54 has a horizontal branch pipe 5 piped from the bathroom.
8 and a horizontal branch pipe 58 piped from the laundry or kitchen sink. The length of the pitch between the upper horizontal branch pipe joint portion 53 and the lower horizontal branch pipe joint portion 54 is determined by the step of the slab, the floor height, and the height of the drain port of the toilet bowl to be used.

[0004] When the two-stage branch collecting pipe joint 51 is installed on a concrete slab, a gap between an inner peripheral surface of an opening hole formed in the concrete slab and an outer peripheral surface of the collecting pipe joint is formed by mortar or the like. The positioning in the horizontal direction and the vertical direction was performed by filling with. However, since the collective pipe joint to which each horizontal branch pipe is connected is subjected to a load due to its own weight, it is necessary to install a support member for supporting the collective pipe joint on the concrete slab. In the related art, the support member 60 is held in contact with the lower surface of the outer peripheral jaw 52a at the upper end of the upper vertical pipe joint port 52 disposed above the upper horizontal branch pipe joint portion 53. According to this method, two support bands 62 are attached to the upper portions of the two long screws 61 fixed to the concrete slab.
A single support band 62 is attached so as to sandwich the upper stand fitting 52, and is fastened with bolts or the like. Then, the height is adjusted by moving the support band 62 in accordance with the position of the collective pipe joint 51.

[0005]

However, especially when supporting the two-stage branch collecting pipe joint 51, the position of the support band 62 becomes higher with respect to the upper surface of the concrete slab, and the length of the long screw 61 is increased accordingly. Must. Long screw 6
1 is constantly loaded in the axial direction by the weight of the collecting pipe joint 51 and the standing pipe connected thereto, so that the longer the long screw 61 is, the more easily buckling occurs, and the longer screw 6
Due to the buckling of 1, the correct posture of the collective pipe joint cannot be maintained.

The present invention has been made to solve the above-mentioned problems, and a first object of the present invention is to improve the shape of a collecting pipe joint supported by a support member so that stable support can be obtained. A second object of the present invention is to improve a collecting pipe joint so as not to cause buckling of a screw of a support member in the case of a collecting pipe joint for a two-stage branch, and to provide a collecting pipe joint therefor. That is.

[0007]

Means for Solving the Problems A joint pipe joint according to the present invention is configured as follows in order to solve the above-mentioned problems. That is, it has an upper standing pipe joint port provided at an upper end portion, and at least one stage of a horizontal branch pipe joint port protruding in a substantially horizontal direction from the cylindrical pipe section to connect the horizontal branch pipe, A body part formed below the branch pipe joint port is a collective pipe joint buried in a concrete slab, and at a position not interfering with the horizontal branch pipe joint port, outward from the tubular pipe part. A protruding collar portion is formed, and the collar portion is formed so as to be supported by a support member fixed on the concrete slab.

In addition, the collecting pipe joint has at least one protruding part in a substantially horizontal direction from a tubular pipe part for connecting an upper standing pipe fitting port provided at an upper end portion and two upper and lower horizontal branch pipes.
An upper horizontal branch pipe joint portion and a lower horizontal branch pipe joint portion having a plurality of horizontal branch pipe joint ports, and a body portion embedded in a concrete slab and arranged below the lower horizontal branch pipe joint portion, A collecting pipe joint comprising: at a position between the upper joint part and the lower joint part, a collar part projecting outward from the tubular pipe part is formed, and the collar part is It is formed so as to be supported by a support member fixed on a concrete slab.

Preferably, the collar portion is formed in a ring shape over the entire outer peripheral surface of the cylindrical tube portion.

Further, the collar portion may be formed in a shape of at least two ears arranged on an outer peripheral surface of the cylindrical tube portion.

[0011]

DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below with reference to the drawings. In addition, the collecting pipe joint described in the present embodiment particularly describes a drain pipe used as domestic wastewater, but the present invention is not limited to this, and “drain” is not limited to this. It contains liquids, dirt, and foreign matter.

FIG. 1 shows an overall view of a two-stage branch collective pipe joint (hereinafter referred to as a two-step pipe joint) 1. The two-step pipe joint 1 is formed at the upper end in parallel with the pipe axis. An upper drainage pipe joint opening (hereinafter referred to as an upper standing pipe joint opening) 10, a joint part 11, a body part 20, and a body part 2 below the body part 20.
And a lower drainage pipe joint port (hereinafter, referred to as a lower standpipe joint port) 22 which is arranged to be connected to the first drain pipe.

The joint portion 11 is a cylindrical tube portion 11 of the joint portion 11.
a upper horizontal branch pipe joint portion 13 having at least one horizontal branch pipe joint port 12 formed at right angles to the upper horizontal branch pipe joint portion 13 and at least one horizontal branch pipe joint portion disposed below the upper horizontal branch pipe joint portion 13. And a lower horizontal branch pipe joint 15 having an opening 14. An annular flange portion 17 having a larger diameter than the tubular tube portion 11a is formed between the upper horizontal branch pipe joint portion 13 and the lower horizontal branch pipe joint portion 15, and the annular flange portion 17 is shown in FIG. As described above, the outwardly protruding joint mark 17a is formed at one location, and is used as the alignment of the two-stage pipe joint 1 when it is installed on a concrete slab. In addition, a locking surface 17b is formed on the lower surface of the annular collar portion 17, and serves as an engagement surface with a support member described later. The annular flange 17 is preferably arranged near the upper portion of the lower horizontal branch pipe joint 15, so that stable support of the two-stage pipe joint 1 can be obtained.

The body portion 20 is arranged below the lower horizontal branch pipe joint portion 15 so as to be connected thereto, and has a tapered tube portion 21 formed so as to have a smaller diameter toward the lower side, and is connected below the tapered tube portion 21. A lower stand fitting 22 is formed. A spiral groove 21a is formed on the outer peripheral portion of the tapered tube portion 21 so that two spiral grooves 21a are opposed to each other in order to have a spiral wing inside.

The two-stage pipe joint 1 formed as described above has:
As shown in FIG. 3, it is installed in an apartment house or the like. The concrete slab 2 is formed with a step, and the two-stage pipe joint 1 is partly buried with a mortar 3a in a sleeve hole 3 formed in a lower concrete slab 2A. An upper drainage stack 4 is connected to 10 and a lower drainage stack 5 is connected to a lower lower pipe joint opening 22. On the other hand, the toilet 6 is placed on the upper concrete slab 2B.
A toilet drain pipe (horizontal branch pipe) 8 is laid from the rear of the toilet 6 through the wall 7 of the toilet, and is connected to the horizontal branch pipe joint port 12 of the upper horizontal branch pipe joint portion 13. . To the horizontal branch pipe joint port 14 of the lower horizontal branch pipe joint portion 15, a horizontal branch pipe 9 piped from a bathroom, a laundry, or a kitchen sink (not shown) is connected to the concrete slab 2A while crawling at a minimum position. I have.

The load of the two-stage pipe joint 1 piped to the lower concrete slab 2A is supported by a support member 25 arranged on the concrete slab 2A.

The support member 25 is, as shown in FIGS.
Two bottom plates 26 arranged on both sides of the two-stage pipe joint 1 and fixed on the concrete slab 2A, support rods 27 erected upward from the respective bottom plates, and respective support rods 27 It has two support bands 28 that are connected to each other at the upper end thereof. Each support band 28 has a circular arc portion 28a formed at the center thereof for press-contacting the cylindrical pipe portion 11a of the two-stage pipe joint 1, and an anti-vibration rubber 29 is adhered inside the circular arc portion 28a. ing. Further, the upper surface of the support band 28 is
A locking surface 28b is formed so as to lock to the locking surface 17b of the annular collar portion 17 of FIG. Then, the locking surface 28b of the support band 28 is engaged with the locking surface 17b of the annular collar portion 17,
The two-stage pipe joint 1 is supported by the support member 25 by attaching the support band 28 to which the vibration-proof rubber is stuck so as to sandwich the intermediate pipe 16 and fastening the support bands 28 to each other with screws. Note that the support band 28 and the support bar 27 are formed to be vertically movable with respect to the support bar 27 so that the height can be adjusted.

Accordingly, the two-stage pipe joint 1 is supported by the support member 25, so that it is maintained in a stable installation state. Moreover,
Since the support member 25 is supported at a relatively lower portion of the two-stage pipe joint, buckling does not occur on the support bar 27 without increasing the length of the support bar 27 of the support member 25.

FIG. 5 shows a collective pipe joint used when a drain pipe of a toilet is piped under the floor, and a one-stage branch collective pipe in which horizontal branch pipe joints are arranged in one stage. A joint (hereinafter, referred to as a one-stage pipe joint) 31 includes an upper drainage pipe joint port (hereinafter, referred to as an upper vertical pipe joint port) 40 formed at an upper end portion in parallel with the pipe axis, a joint section 41, and a body section 47. And a lower drainage pipe joint port (hereinafter, referred to as a lower vertical pipe joint port) 48 which is arranged to be connected below the body part 47. The joint portion 41 includes a horizontal branch pipe joint portion 43 having at least one horizontal branch pipe joint port 42 formed perpendicular to the pipe axis. An annular flange portion 44 having a diameter larger than that of the upper vertical joint port 40 is formed near the pipe joint portion 43, and the annular flange portion 44 projects outward at one location as in FIG. The joint mark 44a is formed, and is used as an alignment of the first-stage pipe joint 31 when the joint is installed on the concrete slab.
In addition, a locking surface 44b is formed on the lower surface of the annular collar portion 44, and functions as an engagement surface with the support member 25 described above. It is preferable that the annular collar portion 44 formed in the upper standing pipe joint port 40 is disposed as close as possible to the vicinity of the horizontal branch pipe joint section 43, so that stable support of the first-stage pipe joint 31 is obtained. become.

The body portion 46 has a tapered tube portion 47 which is arranged continuously below the horizontal branch pipe joint portion 43 and is formed to have a smaller diameter toward the lower side. A spiral groove 47a is formed in the outer peripheral portion of the portion 47 so as to have two spiral wings therein so as to face each other.

The one-stage pipe joint 31 formed as described above
Is installed in an apartment house or the like as shown in FIG. The one-stage pipe joint 31 has a body part 46 buried in a mortar 33a in a sleeve hole 33 formed in a concrete slab 32, an upper drainage pipe 34 in an upper upper pipe joint port 40, and a lower lower pipe in a lower part. The lower drainage stack 35 is connected to the pipe joint port 48. Meanwhile, concrete slab 32
A toilet bowl 36 is disposed on the upper side, and a toilet drain pipe (horizontal branch pipe) 38 is laid from the rear of the toilet bowl 36 through the floor 37 of the toilet, and is connected to a horizontal branch pipe joint port 42A of a horizontal branch pipe joint portion 43. Connected. A horizontal branch pipe 39 piped from a bathroom or a laundry (not shown) is connected to another horizontal branch pipe joint port 42B while crawling at a minimum position on the concrete slab 32.

The load of the single-stage pipe joint 31 piped to the concrete slab 32 is supported by the support member 25 arranged on the concrete slab 32.

As shown in FIG. 4, the supporting member 25 is similar to the above-described embodiment.
b, by engaging the locking surface 28b of the support band 28, attaching the support band 28 to which the vibration-proof rubber is stuck so as to sandwich the upper joint fitting port 40, and tightening the support bands 28 with each other with screws. The first-stage pipe joint 31 is supported by the support member 25.

Accordingly, since the first-stage pipe joint 31 is supported by the support member 25, it is maintained in a stable installation state.

The collar formed in the collective pipe joint is not limited to the above, and other forms are conceivable. For example, instead of being formed over the entire circumference around the tubular portion, a plurality of ear-shaped pieces or claw-shaped pieces may be formed.

FIGS. 7 to 9 show a collecting pipe joint 7 according to another embodiment.
0 and a state where the collective pipe joint 70 is supported by the support member. This collective pipe joint 70 has a support piece intermittently formed in place of the annular flange portion 17 of the collective pipe joint 1 in FIG.
The four ear-shaped pieces 71 are formed so as to protrude outward from the cylindrical pipe portion 11a at positions not interfering with the horizontal branch pipe joint port 14 around the center position of the horizontal branch pipe. Ear piece 7
1, a screw hole 72 is formed in the pipe axis direction,
5 adjustment screws are inserted. The support member 75 has a base plate 76 fixed on the concrete slab 2B and an adjusting screw 79 screwed to the base plate. The base plate 76 includes a vibration-isolating rubber plate 77 disposed at a lower portion and a stop plate 78 disposed at an upper portion, and two are installed at symmetrical positions of the collective pipe joint 70 (the mounting position can be appropriately selected. And, if necessary, four can be installed). Then, the base plate 78 is fixed to the concrete slab 2B by penetrating the stop plate 78 and the vibration-isolating rubber plate 77 from above the stop plate 78, and the base plate 78 is fixed. The hole 72 of the piece 71 is inserted, and the nut 80 is tightened from above and below the ear piece 71 to support the ear piece 71 and support the collecting pipe joint 70.

The lug 71 may be formed at the position of the annular flange 17 in FIG.
May be formed at the position of the annular collar portion 44 of the one-stage joint 31 in FIG. Further, it may be formed at a position that does not interfere with the lateral branch pipe joint port 42 around the center position of the horizontal branch pipe joint port 42 in FIG.

As described above, when the collecting pipe joint of the present invention is installed on a concrete slab, in order to stably support the collecting pipe joint, an annular collar or a lug extends outward from the cylindrical pipe portion. The shape is formed, and the shape, the position at which the shape is formed, and the like are not limited to the above-described embodiments unless they depart from the gist of the present invention. However, it is more advantageous if the part supported by the support member is arranged as low as possible. Further, the above-described embodiment is merely one embodiment of the support member, and is not limited to the above-described embodiment.

[0029]

According to the present invention, the collecting pipe joint has at least an upper standing pipe fitting port provided at the upper end thereof and at least one projecting substantially horizontally from the tubular pipe section for connecting the horizontal branch pipe. A collective pipe joint having a one-stage horizontal branch pipe joint port, and a body formed below the horizontal branch pipe joint port is embedded in a concrete slab, and does not interfere with the horizontal branch pipe joint port. In the position, a collar portion protruding outward from the cylindrical tube portion is formed, and the collar portion is formed so as to be supported by a support member fixed on the concrete slab. Therefore, the load due to the weight of the collecting pipe joint and the standing pipe can be received by the support member, and the pipe joint can be stably installed.

Further, the collecting pipe joint has at least one protruding part in a substantially horizontal direction from the tubular pipe part for connecting the upper branch pipe joint port provided at the upper end portion and the upper and lower horizontal branch pipes.
An upper horizontal branch pipe joint portion and a lower horizontal branch pipe joint portion having a plurality of horizontal branch pipe joint ports, and a body portion embedded in a concrete slab and arranged below the lower horizontal branch pipe joint portion, A collecting pipe joint comprising: at a position between the upper joint part and the lower joint part, a collar part projecting outward from the tubular pipe part is formed, and the collar part is It is formed so as to be supported by a support member fixed on the concrete slab. Therefore, the annular collar can be installed at the lower side of the collective pipe joint, and the support member to be engaged with the annular collar can be formed shorter than the concrete slab. Therefore, buckling of the support member does not occur, so that stable support of the collective pipe joint can be maintained.

Further, if the collar portion is formed in a ring shape over the entire outer peripheral surface of the cylindrical pipe portion, the support member can be mounted above or below the horizontal branch pipe joint port. If the collar portion is formed in at least two ears arranged on the outer peripheral surface of the cylindrical pipe portion, a position that does not interfere with the horizontal branch pipe joint port around the center position of the horizontal branch pipe joint port. The supporting member can be attached to the.

[Brief description of the drawings]

FIG. 1 is a diagram showing a two-stage pipe joint according to an embodiment of the present invention.

FIG. 2 is a sectional view taken along line II-II of FIG.

FIG. 3 is a diagram showing a state where the two-stage pipe joint in FIG. 1 is used for a part of an apartment house;

FIG. 4 is a perspective view showing a support member in FIG. 1;

FIG. 5 is a diagram showing a single-stage pipe joint according to another embodiment of the present invention.

FIG. 6 is a diagram showing a state where the single-stage pipe joint in FIG. 5 is used for a part of an apartment house;

FIG. 7 is a view showing a collecting pipe joint according to still another embodiment of the present invention.

FIG. 8 is a plan view of the collective pipe joint in FIG. 7;

FIG. 9 is a view showing a state in which the collecting pipe joint in FIG. 7 is supported by a support member.

FIG. 10 is a view showing a state in which a conventional collecting pipe joint is supported by a support member.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Two-stage pipe joint (collective pipe joint) 2, 32 ... Concrete slab 4 ... Upper drainage stack 5 ... Lower drainage stack 8 ... Toilet drainage pipe (horizontal branch pipe) 9 ... Horizontal branch pipe 10 ... Upper vertical pipe joint Mouth 11 ... Joint part 11a ... Cylindrical pipe part 12 ... Horizontal branch pipe joint port 13 ... Upper horizontal branch pipe joint part 14 ... Horizontal branch pipe joint port 15 ... Lower horizontal branch pipe joint part 17 ... Annular collar part 17b ... Lock Surface 20 ... Body part 22 ... Lower pipe joint port 25 ... Support member 28 ... Support band 28b ... Locking surface 31 ... One-step pipe joint 40 ... Upper stand pipe joint port 41 ... Coupling part 42 ... Yokota branch pipe joint port 43 ... horizontal branch pipe joint part 44 ... annular collar part 46 ... body part 48 ... lower stand pipe joint port 71 ... ear piece 72 ... hole 75 ... support member 79 ... adjusting screw

Claims (4)

[Claims] An upper standing pipe joint port disposed at an upper end portion, and at least one horizontal branch pipe joint port protruding substantially horizontally from a cylindrical pipe section for connecting a horizontal branch pipe. A collecting pipe joint in which a body formed below the horizontal branch pipe joint port is buried in a concrete slab, wherein the body section is located outside of the tubular pipe section at a position that does not interfere with the horizontal branch pipe joint port. And a flange protruding toward the concrete slab, wherein the flange is formed so as to be supported by a support member fixed on the concrete slab. 2. An at least one horizontal branch pipe joint projecting substantially horizontally from a tubular pipe section for connecting an upper vertical pipe joint port provided at an upper end portion and two upper and lower horizontal branch pipes. An assembly pipe joint comprising: an upper horizontal branch pipe joint section having a mouth, a lower horizontal branch pipe joint section, and a body section buried in the concrete slab and disposed below the lower horizontal branch pipe joint section. A collar is formed at an intermediate position between the upper joint and the lower joint to protrude outward from the tubular portion, and the collar is fixed on the concrete slab. A collecting pipe joint characterized by being formed so as to be supported by a supporting member. 3. The collective pipe joint according to claim 1, wherein the collar portion is formed in a ring shape over the entire outer peripheral surface of the cylindrical pipe portion. 4. The collecting pipe joint according to claim 1, wherein said collar portion is formed in at least two lugs arranged on an outer peripheral surface of said cylindrical pipe portion.