JP2003138621A - Drainage underfloor piping facility - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent an instrument trap from being broken when a catch basin collectively and intensively draining an underfloor drain pipe of a detached house is used. SOLUTION: In the catch basin 4 having an outflow head 11 connecting a main drain pipe 5 and an inlet head 12 connecting each of a plurality of drain branch pipes 6 communicating with the instrument trap except for a toilet, a function reflowing the air in the catch basin and an accumulator function of the air in a pipe passage are imparted to the catch basin 4, the instrument trap is prevented from being broken, furthermore, the downstream of the main drain pipe 5 is connected to an outdoor trap basin 24 to block toilet odor, one upstream instrument trap of the drain branch 6 is eliminated to be used for a vent pipe, and the remaining instrument trap is prevented from being broken.

Description

Detailed Description of the Invention

[0001]

FIELD OF THE INVENTION The present invention is a set,
Alternatively, the present invention relates to a drainage underfloor piping facility including a drainage main pipe using a header-type joint.

[0002]

2. Description of the Related Art At present, underfloor pipes for indoor drainage using one gathering basin (also called collecting basin for collective centralized drainage or meeting hall masquerade) are actively proposed (for example,
See Japanese Patent Laid-Open No. 2001-220792).

According to the underfloor piping for drainage using such one assembly, 1) the drainage pipe, which is called prefabricated pipe, can be unitized, the amount of labor at the site can be reduced, the whole construction period can be shortened, and the product manufactured at the factory can be shortened. 2) There is an effect of stabilizing the quality due to 2) maintenance of the whole underfloor piping by the inspection port of the gathering
Easy to inspect. 3) Collects but works as a kind of air accumulator to reduce the breakage of upstream equipment traps as much as possible. 4) Non-buried underfloor piping saves earthwork costs. Yes, 5) It is said that the effects such as outdoor drainage and the number of drainage pipes can be expected.

[0004] Then, when the downstream side of the underfloor piping equipment for drainage is connected, it is roughly classified into a drainage main pipe and indoor drainage, and A) is for collective housing, and B) is a detached house. It has become a suitable one, and various proposals have been made to these.

For example, even though it is an air accumulator, 1
There is a case where the instrument trap may be broken when using two gathering mascots, and there is a proposal for preventing this, but regarding the former A), JP-A-7-3853, JP-B-8-26564, and JP-A-2001-40745. No. publication,
Also, regarding the latter B), JP-A-2001-22079
No. 6 publication.

That is, Japanese Patent Laid-Open No. 2001-4074 mentioned above.
The proposal of Japanese Laid-Open Patent Publication No. 5 has been introduced in which the airtight valve which is closed at positive pressure and opened at negative pressure is provided on the hermetically-sealing lid of the assembly, and the above-mentioned Japanese Patent Laid-Open No. 2001-220796 discloses that The following suggestions are introduced.

In FIG. 3, one drainage main pipe 101 is laid under the floor 100 of a building, and this drainage main pipe 101 is connected to a header-type joint (in this specification, 45 ° Y or 90 connected in a straight pipe shape or a curved pipe shape). ° Y etc.) (and therefore without the use of round or square masquerading aggregates), to which equipment traps (toilet trap 102, washroom trap 103, washing machine trap 10
4, the bathroom trap 105, the kitchen trap 106) is connected to the outlet side of the drain branch pipes 107, 107 ..., and the downstream side of the drain main pipe 101 is connected to a drain 108 which is buried outdoors. In the piping equipment, a ventilation pipe 109 is connected to the main drainage pipe 101 or the main drainage pipe 107 (particularly, the drainage branch pipe 107 for toilet, that is, the upstream end of the main drainage pipe 101 as shown in the figure), that is, a so-called loop. A ventilation pipe is formed, and this ventilation pipe 109 is led out to the outside, is erected along the outer wall, and is provided with a ventilation valve at its tip, so that the breakage of each instrument trap is prevented, and in particular, each instrument trap is Without providing a corresponding number of ventilation pipes, that is,
It is said that it is possible to reduce material costs and construction costs without providing individual ventilation pipes. In the figure, reference numeral 110 indicates a public masu.

[0008]

However, in such an underfloor piping facility for drainage, since 1) the gathering pipe is not used for the drainage main pipe 101, the above-mentioned effect as gathering gathering, the effect of maintenance / inspection and the air accumulator 2) Since the ventilation pipe 109 is connected to the upstream end of the main drainage pipe 101, there is a problem that the sewage odor that flows back from the public mast 110 flows back into the floor and enters.

Therefore, the main purpose is to solve such a problem, and a secondary purpose is to construct a fail-safe mechanism for deodorizing measures by breaking the seal and for preventing noise under the floor.

[0010]

Therefore, the present invention provides
1) One synthetic resin consisting of an outlet connected to one drain main pipe, a plurality of drain branch pipes each connected to a plurality of drain traps communicating with an equipment trap other than a toilet trap, and a lid for sealing the upper part An underfloor piping facility for drainage using a manufacturing aggregate, which connects the downstream side of the main drainage pipe to an outdoor trap to block toilet odors and sewage odors, and an equipment trap upstream of the drainage branch pipe. It is a drainage underfloor piping facility characterized by omitting a part of it to serve as a ventilation pipe to prevent the remaining instrument trap from being ruptured.
A drainage underfloor piping system in which a plurality of drainage branch pipes connected to equipment traps other than a toilet trap are connected to one drainage main pipe, and the downstream side of the drainage main pipe is connected to an outdoor trap masu to remove toilet odors and An underfloor piping facility for drainage, characterized in that, while blocking the sewage odor, a part of the instrument trap on the upstream side of the drain branch pipe is omitted and is also used as a ventilation pipe to prevent the remaining instrument trap from being ruptured. Is the gist.

Therefore, the present invention includes the following embodiments.

Except for an outlet connected to one drain main pipe and a toilet trap, there is no vent pipe and various equipment traps (meaning equipment traps other than toilet traps)
An underfloor piping facility for drainage using a synthetic resin aggregate comprising a plurality of drainage pipes communicating with each other, a plurality of inflow ports connected to each other, and a lid for sealing the upper side, and the downstream side of the drainage main pipe. To one of the outdoor traps, and one or two (a part) of the equipment traps on the upstream side of the drain branch pipe were omitted and used as a ventilation pipe to prevent the remaining equipment traps from being ruptured. Underfloor piping equipment for drainage, which is characterized.

An underfloor piping facility in which one drainage main pipe does not have a ventilation pipe except for a toilet trap, and a plurality of drainage branch pipes connected to various equipment traps are connected to each other,
The downstream side of the drainage main pipe was connected to an outdoor trap masu, and one of the instrument traps on the upstream side of the drainage branch pipe was omitted and used as a ventilation pipe to prevent the remaining instrument traps from being ruptured. Underfloor piping equipment for drainage.

An accumulator function for the air in the pipe line is added to the assembly, and together with this function, a fail-safe mechanism for preventing breakage of other device traps is formed by ventilation by omitting the device trap.

In addition to providing an accumulator function for the air in the pipeline to the collecting yard, a partition plate for partitioning the inflow port is provided in the collecting yard to further add an air recirculation function inside the mast. A fail-safe mechanism for preventing the breakage of other device traps by the function of the ventilation pipe by omitting the device traps.

[0016]

The present invention will be described in detail with reference to the embodiments shown in the accompanying drawings.

FIG. 1 is a schematic view of the whole embodiment of the present invention, and FIG. 2 is a detailed cross-sectional view of the essential parts of FIG.

The unitized indoor underfloor piping facility 1 for drainage according to the embodiment of the present invention is suitable for a wooden detached house,
It can also be applied to small-scale apartment houses.

First, an outline of this indoor underfloor piping facility 1 for drainage will be described.

In FIG. 1, in order to construct a wooden house 2, roots are cut on the site, foundation work such as footing and cloth foundation, which will be the outer peripheral foundation, and allowances such as sleeves for drainage main pipes. Do it later.

After curing the concrete of the foundation work, the moisture-proof concrete 3 is placed on the entire surface under the floor. When placing this moisture-proof concrete, attach the anchor bolts to the concrete.
Buried inside

After curing the moisture-proof concrete 3, the gathering basin 4 is detachably fixed and placed by anchoring, and one drainage main pipe 5 is laid and connected to the gathering yard 4. After that, the main body construction is performed, and then the secondary indoor piping is performed along with the internal construction.

That is, for example, when the internal construction of the kitchen is carried out, the sink and the assembly 4 are connected by a drainage branch pipe 6 using a flexible pipe by a miscellaneous appliance connecting socket 7 in a one-touch type.

The length of the drain branch pipe 6 is cut to a length which is known in advance from the construction drawing, and therefore, it is a prefabricated pipe in which a predetermined flow gradient can be obtained only by connecting.

Similarly, the drain branch pipe 6 is connected to the existing gathering unit 4 for each internal work for installing miscellaneous waste equipment such as a washbasin, a washing machine and a bathtub.

This gathering masque 4 is placed in a pocket space under the floor 8 of the wooden house 2, and an inspection port (not shown) is provided on the floor 8 just above it to open and close, and maintenance of the gathering masque 4 is performed. An inspection is performed so that maintenance and inspection (cleaning) of the indoor drainage underfloor piping facility 1 can be performed. In addition, in FIG.
9 indicates joists.

Underfloor piping facility 1 for indoor drainage as described above
Since this construction method improves the construction accuracy, it can be sufficiently piped even by multi-skilled workers such as concrete contractors, and while avoiding the construction time lag, the labor costs associated with the construction (about 7 It can also reduce the number of outdoor drainage pits.

Next, the assembly 4 in the indoor underfloor piping facility 1 for drainage as described above will be described in detail.

In FIG. 2, the aggregate 4 is made up of a so-called synthetic resin (PVC injection molding) confluent step which is circular in plan view (of course, it may be 4-square, but is not at least a header-type joint type). , A large number of drain branch pipes 6 that are radial or parallel and orthogonal to the pipe axis of the drain main pipe 5.
Are able to connect.

That is, in the main body 10, one laterally large drainage pipe connection port having a relatively large diameter (for example, 100 mmφ) (specifically, a rubber ring receiving port, but also referred to as an outflow port) 11 And a plurality (six) of relatively small diameter (for example, 60 mmφ) drainage branch pipe connection ports (specifically, one-touch connection ports, but also expressed as inflow ports) 1
2 and 12 are integrally projected, and a step (for example, 5) is provided between the drainage main pipe connection port 11 and the drainage branch pipe connection port 12.
5 mm) S provided with the invert portion 13.

Further, a lid fitting port 14 having a large diameter (for example, 200 mmφ) is formed upward in the barrel-shaped trough body 10, and a lid 15 with a partition plate 17 is formed in the lid fitting port 14. Is removably attached and completely sealed via a lip-shaped packing 16 to prevent sewage odor from entering the room.

As described above, the plurality of drain branch pipe connection ports 12 are provided so that even if the drainage from various indoor miscellaneous equipment flows in, the partition plate 17 and the relatively large step S. By doing so, the backflow to the other drain branch pipe 6 is prevented.

Further, in this main body 10, two parallel drain outlet branch pipe connection ports 12 are formed in advance on three sides except the drainage main pipe connection port 11 side. A total of 6 inflow connection ports (12) can be formed in the above, which is convenient for piping that lowers the height of the gathering 4 and satisfies the number of various miscellaneous devices with device traps. The connection from any direction can be facilitated. Moreover,
Since the two parallel inflows, it is possible to prevent the rebounds of the main body 10 due to mutual running water. The unnecessary connection port (12) is closed.

In particular, if the main body 10 is made by injection molding, the molding die can be easily divided, and the injection molding die and the molding machine are not complicated. Improve sex.

Next, the partition plate 17 will be described. In FIG. 2, the partition plate 17 is composed of eight (several) vertical partition plates that divide the plurality of drain branch pipe connection ports 12, 12 ... .

Further, in order to prevent the splashing of drainage quickly and smoothly by utilizing the relatively large step S provided on the main body 10, and to prevent splashing of drainage, these partition plates are used. Inverted L-shaped top plate 18 across 17 comrades
Is provided.

Therefore, the radial partition plate 17 prevents backflow to the other inlet port (12) when the wastewater does not flow, and prevents the splashing and scattering of the wastewater due to collision at the same time. In addition, by the top plate 18,
While using the relatively large step S, it is possible to allow the water to quickly flow out, and further reduce the height of the main body 10 as much as possible, which is convenient for underfloor piping in a limited pocket space. it can.

The radial partition plate 17 and the top plate 18 are
It is integrally (injection) molded with the central shaft (vertical shaft) 19.

That is, in the lower part of the pipe-shaped central axis 19,
The minimum diameter portion of the upward trumpet body of the inverted L-shaped top plate 18 is integrated, and the upward trumpet body is divided by the partition plate 17,
The parts 17 are integrally formed so as to be divided in the vertical direction and radially with the central axis 19 as the center at equal intervals.

The central axis 19 of the partition plate 17 is
It is detachably connected to a mounting shaft 20 that integrally projects at the center of the lower surface of the lid 15.

Therefore, when the lid 15 is taken out, the partition plate 1
7 can be taken out from the main body 10
It is possible to easily perform maintenance and inspection of the drainage underfloor piping facility 1 including.

Further, the pipe-shaped central axis 19 of this lower opening
A window 21 is opened in the middle of the vertical direction, and this is used as an air circulation port.

Therefore, when the wastewater flows into the drainage branch pipe connection port 12 which is one inflow port in a full flow, the air in the closed assembly 4 is extruded to the drainage main pipe connection port 11 together with the drainage, There is a risk of forming pressure, and the device trap (not shown) that is connected to the other drainage branch pipe connection port 12 will be easily ruptured, and if it is ruptured, the sewage odor will flow back indoors and enter. Because of this, the window 21 which is the return port
The air in the assembly 4 circulates as indicated by the arrow C in the figure, and the air pressure is adjusted in combination with the original air accumulator function of the assembly 4.

Here, the drainage underfloor piping facility 1 of the present embodiment is provided with a fail-safe mechanism for preventing double traps and for preventing deodorization by breaking as described below.

That is, in FIG. 1, the main drain pipe 5 is
Is a non-buried pipe on the moisture-proof concrete 3 with a fixed support metal fitting 22, and the downstream side is drained to the outside (GL) through an S-shaped pipe 23 which is a substantially S-shape. 24
It is connected to the inlet side of.

The outlet of this drainage basin 24 is connected to a domestic drainage pipe 25 connected to a public masu (not shown),
A drain branch pipe (not shown) communicating with the toilet trap is connected to the indoor drain pipe 25.

That is, a toilet drain branch pipe is separately joined to the in-house drain pipe 25 so that toilet waste or the like does not flow into the gathering unit 4.

Therefore, the maintenance / inspection work of the drainage underfloor piping facility 1 is facilitated, and even if one of the equipment traps of this facility is ruptured, the toilet odor will flow back into the room. I try not to infiltrate.

Therefore, the drainage basin 24 is configured as a so-called trap masque and blocks toilet odors and sewage odors from public masu.

That is, a U trap 26 is attached to the inflow side of the drainage basin 24, an inspection cylinder 27 is erected on the inflow side of the U trap 26, and is covered with the home ground GL.

Further, the S-shaped pipe 23 is connected to the inspection cylinder 27 via a chain 28.

This S-shaped pipe 23 has three elbows 29,
By using 29 ..., a so-called staircase connection of two steps (which means a pipe line in which a plurality of lower stairs are combined on the downstream side) is made from the concrete surface under the floor to the inspection cylinder 27 buried under the residential ground GL. There is. Of course, a one-step step-bonding conduit may be used.

By the way, according to the observations made by the present inventors, it was found that, in this staircase connection, the inflow side of the elbow 29A of the first upstream stage was likely to be temporarily filled with water.
It has been found that, regardless of the presence or absence of the trap 26, the upstream instrument trap tends to be ruptured similarly to the double trap.

That is, in general, solid substances other than mere drainage are made to flow through the miscellaneous drainage pipe, so that the direction of the miscellaneous drainage pipe is set to 9
In the case of 0 ° conversion, the solid matter cannot turn a little, and its radius of curvature needs to be increased. If a so-called short elbow (which is not a large bend elbow) is used there, turbulent flow also occurs and pipe clogging occurs. It is said that a large positive pressure is generated on the upstream side.

However, in order to join the stairs of the S-shaped pipe 23, this short elbow has to be used because of the space and the place of installation, and as a result, the inlet side of the S-shaped pipe 23 is momentarily joined. It is thought that there is a possibility of full water.

Of course, the S-shaped pipe 23 does not include a drainage basin for forming a hollow, which must be used at a place where the pipeline gradient suddenly changes.

In particular, the main drainage pipe (5) is mainly a header.
In the case of a mold joint, when a full flow from one drain branch pipe (6) flows into the drain main pipe (5) having a larger diameter than this drain branch pipe (6), the drain branch pipe (6) located downstream of the drain branch pipe (6) ) Merges with this, and eventually, although the diameter is larger than that of the drain branch pipe (6), a full state may occur at the outlet side of the main drain pipe (5), that is, at the inlet side of the S-shaped pipe 23. Affect synergistically.

Therefore, in the above-mentioned drainage underfloor piping facility 1, the gathering unit 4 functions as an air accumulator and also as a function of the air recirculation by the window 21 of the central shaft 19 to prevent the instrument trap from being unsealed. Although it can be prevented, as a fail-safe mechanism for further avoiding a double trap by the U trap 26 and various instrument traps, the instrument trap of the miscellaneous waste instrument with a small amount of water used is omitted from the plurality of miscellaneous instruments. And also for ventilation, that is, also for ventilation pipe,
By avoiding the double trap, the noise caused by the positive pressure of the air in the pipeline due to this, the extension of the drainage time due to the disturbance of drainage, the clogging of the pipe, and the breaking of the rest of the instrument trap are prevented. I was able to do it.

As a result, it is possible to fully implement the double trap countermeasure, which is the biggest difficulty in the collective centralized underfloor piping using the assembly 4 and the header-type joint.

It should be noted that the standard for selecting the miscellaneous drainage device omitting the device trap may be a washbasin, for example, because it uses less water, but the room is independent and is installed in a well-ventilated place. The device trap may be omitted, and since the toilet odor and the sewage odor are completely blocked by the U trap 26, the device trap may be omitted in two places.

Further, as a reference example, from a device that serves both drainage and ventilation, the U-trap 26 does not infiltrate toilet odors, etc., but if you are worried, install a new ventilation pipe in the assembly 4 May be.

In summary, according to the fail-safe mechanism of the present embodiment, the ventilation branch pipe is attached to the drain branch pipe like the above-mentioned conventional example, and this is led out to the outside to be started up, and the ventilation valve is provided. Of course, it is possible to contribute to further unit piping of the underfloor piping facility for drainage.

In the present invention, the header-type joint may be connected to the upstream side of the main drain pipe 5 for use. In this case, it can be applied to an apartment house.

[0064]

According to the present invention, the fail-safe mechanism is provided as a double trap measure, especially a deodorant measure, which is a difficulty of the underfloor piping facility for drainage. Therefore, the quality for enhancing reliability can be further improved. That is, it is possible to prevent the instrument trap connected to the underfloor pipe from being broken.

Since the instrument trap is simply omitted, for example, the instrument trap in the cabinet of the wash basin is removed and the straight pipe is re-plugged. Therefore, the construction cost can be reduced.

[Brief description of drawings]

FIG. 1 is a schematic view of an entire embodiment of the present invention.

FIG. 2 is a detailed cross-sectional view of a main part of FIG.

FIG. 3 is a conventional example.

[Explanation of symbols]

1 ... Underfloor piping equipment for drainage, 2 ... wooden house, 4 ... collective, 5 ... main drainage pipe, 6 ... drainage branch pipe, 24 ... drainage, 2
6 ... U trap

Claims (2)

[Claims] 1. A drainage pipe connected to one drainage main pipe, a plurality of drainage pipes each connected to a plurality of drainage branch pipes communicating with a device trap other than a toilet trap, and a lid for sealing the upper part of the drainage pipe. An underfloor piping facility for drainage using two synthetic resin aggregate mascots, in which the downstream side of the main drainage pipe is connected to an outdoor trap masu to block toilet odor and sewage odor and the upstream side of the drainage branch pipe. The underfloor piping facility for drainage is characterized in that a part of the equipment trap of is used as a ventilation pipe to prevent the remaining equipment trap from being ruptured. 2. A drainage underfloor piping facility in which a plurality of drainage branch pipes communicating with an equipment trap except a toilet trap are connected to one drainage main pipe, and the downstream side of the drainage main pipe is used as an outdoor trap. It is characterized by connecting and blocking toilet odor and sewage odor, omitting a part of the equipment trap on the upstream side of the drain branch pipe and using it also as a ventilation pipe to prevent the remaining equipment trap from being ruptured. Underfloor piping equipment for drainage.