JP2004278095A - Catch basin within residential area - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a cascade type catch basion used in a narrow space. <P>SOLUTION: An outdoor main drain pipe 106 and a cascade type catch basin 10 are installed by use of excavation in the construction of a detached house. The inflow inlet 13 of the catch basin 10 is opened in the downstream direction of the outdoor main drain pipe 106, at the upper part of the catch basin 10. Because guide members 25, 34 regulating the inflow inlet 13 and the outflow opening of the catch basin 10 communicating with the outdoor main drain pipe 106 in the stream in a U-turn form are built in the catch basin, even if the catch basin 10 is installed close to the building 2, the cascade flow is not disturbed. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention particularly relates to a synthetic resin drainage that can be installed near the foundation of a building in a house, and more particularly to a drainage sink installed in a house for saving space.
[0002]
[Prior art]
Currently, drainage underfloor plumbing equipment using one collective or one header-type joint has been actively proposed (for example, Japanese Patent Application Laid-Open No. 2001-220796 and Japanese Patent Application Publication No. 327474, etc.).
[0003]
According to such drainage underfloor plumbing equipment, 1) the drainage pipe can be made into a unit, which has the effect of reducing the amount of labor on site, and 2) when using a collective, this acts as a kind of air accumulator. 3) If the underfloor piping is not buried, the earthwork cost will be reduced. 4) The number of outdoor drains and drain pipes will be reduced. It is possible.
[0004]
Underfloor piping equipment using such one header-type joint will be further described based on the above-mentioned Japanese Patent Application Laid-Open No. 2001-220796.
[0005]
In FIG. 7, this is provided on a moisture-proof concrete 3 under a floor 8 of a building 2 such as a detached house.
[0006]
The downstream side of the underfloor piping equipment 1B penetrates the fabric foundation 24 of the building 2 and is buried outdoors through a 90-degree large bend Y-joint 101, a vertical short pipe 102, a 90-degree elbow 103, and a horizontal short pipe 104. The drain is connected to a drain 105.
[0007]
The drainage basin 105 is connected to an outdoor drainage main pipe 106 buried in the site, and the outdoor drainage main pipe 106 is connected to a public square (not shown).
[0008]
By the way, the underfloor plumbing equipment 1B includes a header-type joint 107 and an indoor drainage main pipe 5 under the floor, and one header-type joint 107 includes a flush toilet, a washroom, a washing machine, and a bathroom (not shown). Each drainage branch pipe end connected to various miscellaneous drainage appliances such as a kitchen is connected. Of course, these instruments are provided with an instrument trap.
[0009]
Therefore, in order to prevent all of these instrument traps from being breached, a vent pipe 109 opened outdoors is attached to the header-type joint 107, and this vent pipe 109 allows the header-type joint 107 and the indoor drain main pipe 5 to be opened. And prevents the instrument trap from being completely opened.
[0010]
That is, since the header-type joint 107 is provided with one ventilation pipe 109, the water trapping of these equipment traps can be effectively maintained without providing a number of ventilation pipes corresponding to various miscellaneous drainage equipment. It is said that material costs and construction costs can be reduced.
[0011]
On the other hand, the burial depth of the outdoor drainage basin (two even for toilets) 105 used for such collective concentration is determined by the ordinance, etc., and the depth of the public drainage sill (not shown) is determined. Since the slope of the pipe 106 is determined, and the minimum earth covering of the outdoor drainage main pipe 106 is also set to 20 cm according to the regulations or the like, the 90-degree large bend Y joint 101 and the vertical short pipe 102 are used as described above. , A 90-degree elbow 103 and a short horizontal tube 104 are used to form a step-joined structure (also referred to as a head structure; the same applies hereinafter) 110 so that the depth can be obtained.
[0012]
[Problems to be solved by the invention]
However, in the outdoor drainage trough 105 used for such collective concentration, the step junction structure 110 as described above is formed, so that the number of parts is increased and the number of parts, which is one of the features of collective concentration drainage, is reduced. Of course, it is not preferable, because the installation space is so large that it is not preferable in narrow land.
[0013]
Various proposals are known in Japanese Utility Model Registration No. 2554325 and Japanese Utility Model Laid-Open Publication No. 3-93890 regarding a small caliber that can be used in a narrow land.
[0014]
The proposal disclosed in Japanese Utility Model Laid-Open Publication No. 3-93890 will be described.
[0015]
This means that a main body is provided with a pair of upstream and downstream connections on a main shaft, and a connection portion for a check tube is provided on a surface side orthogonal to the main shaft. )) In the outdoor drainage where the drainage is combined, the elbow body for connecting the vertical pipe is horizontally and integrally attached to the main body, thereby shortening the distance between the main body and the vertical pipe. This is a proposal for drainage masu that can be used even in narrow land.
[0016]
However, this proposal cannot be adopted because of the following problems.
[0017]
(1) When the proposed outdoor drainage masu is used in a very narrow area, an elbow body protrudes horizontally from the main body, and a vertical pipe (corresponding to reference numeral 102 in FIG. 7) rises up. Therefore, it occupies the installation space accordingly, and it is still difficult to use.
[0018]
{Circle around (2)} A second elbow (corresponding to the reference numeral 103 in FIG. 7) is required to allow the upper drainage to flow into the vertical pipe.
[0019]
Therefore, the present invention was created in an attempt to solve such problems, and in particular, to change the way of thinking and to focus on changing the construction method, It was created with a focus on outdoor drainage masu, which is not covered with soil or is thinly applied.
[0020]
[Means for Solving the Problems]
Therefore, according to the present invention, 1) in a drainage basin composed of a check tube and an invert, an inflow port is provided above the drainage basin, and the inflow port and the invert outflow port are formed in a U-turn shape. The drainage muffler installed in the house, which has a built-in guide member that makes the flow of water flow, and 2) In the drainage muffler consisting of a check tube member and a separate invert member, A horizontal drainage pipe connecting portion serving as an inflow port is integrally formed and protruded from the check tube member, and the pipe top is made substantially coincident with an opening / closing lid of the check tube member. 3) In a drainage basin composed of an inspection tube member and an independent invert member, a connecting portion for a horizontal inflow pipe serving as an inlet of the inspection tube member is integrally formed and protruded. Near the base of the building, where the top of the pipe is located approximately on the surface of the ground 4. The drainage device according to claim 2, wherein the drainage device is made of a PVC injection mold that can be installed in the drainage device, and 4) a downward guide member for connecting the connection portion and the invert is detachably provided. 5. The drainage pan according to claim 4, wherein the downward guiding member of the flow has a curved surface corresponding to the number of connection portions for the inflow pipe, and 6) the downward guiding of the flow. 5. The drainage basin according to claim 4, wherein the member is constituted by an elbow and a U-turn assisting member, and 7) the flow of the connecting portion is reversed with respect to another flow in the inverting member. The drainage basin according to claim 2, 3, 4, 5, or 6, wherein the drainage from the connection portion is made to make a U-turn while falling, so as to join the other stream. 8) Below the underfloor piping system for centralized collective drainage at the connection An outdoor drainage pan according to any one of claims 1 to 7, wherein the drainage pan comprises a check tube member and an independent inverting member. The inspection tube member is composed of one tooth-shaped tubular body having a vertical portion in the T-shape having a diameter smaller than that of the horizontal portion and being biased to one end of the horizontal portion. The gist of the present invention is a PVC drainage that can be installed near the foundation of a building, characterized in that it is used as a pipe connection part and an opening / closing lid is provided at one end.
[0021]
BEST MODE FOR CARRYING OUT THE INVENTION
BRIEF DESCRIPTION OF THE DRAWINGS The invention will be explained in more detail by means of embodiments shown in the accompanying drawings.
[0022]
1 is a schematic view of a first embodiment of the present invention, FIG. 2 is a longitudinal sectional view of FIG. 1, FIG. 3 is a detailed view of a main part of FIG. 1, FIG. 4 is a detailed view of a main part of FIG. FIG. 6 is a longitudinal sectional view of another embodiment of the present invention. FIG. 6 is a longitudinal sectional view of the second embodiment of the present invention. In FIG. Since it is simplified, it is assumed that the description is provided as it is.
[0023]
"Overview of Examples of the Present Invention"
First, an outline of an embodiment of the present invention will be described.
[0024]
The outdoor drainage trough 10 of this embodiment is a small-diameter trough which is installed in the vicinity of the foundation concrete of the building 2 and is entirely made of synthetic resin, especially PVC injection molding. The drainage main pipe 106 can be applied to a pipe having a diameter of 75 mmφ to 150 mmφ. Therefore, the diameter of the inspection cylinder member 11 of the drainage trough 10 is configured to be 150 mmφ to 200 mmφ.
[0025]
3 and 6, the drainage trough 10 mainly comprises an upper inspection tube member 11 and a lower inverting member 12. In particular, the drainage trough 10 is directly connected to the inspection tube member 11 for an inflow pipe serving as an inlet. 13 is integrally formed and protruded, so that it is not a normal tubular tube, but a transverse cheese-like tube (for example, a vertical portion in a T-shape is smaller in diameter than a horizontal portion, and is provided at one end of the horizontal portion. It is a tube body that is provided unevenly.
[0026]
The inspection tube member 11 and the inverting member 12 are such that the inverting member 12 is bent at a straight angle or a large 90 ° right or left, 45 °, merges, a spherical invert, or a spherical invert with a step. In order to make it more versatile, to adjust the burial depth, etc., it is constructed separately and joined at the manufacturing factory or at the time of use.
[0027]
Further, an opening / closing lid 14 is provided directly on the upper end of the inspection cylinder member 11 (meaning that another cylindrical body is not interposed, even if a ring-shaped lid frame is provided. The same applies hereinafter). For this reason, the opening / closing lid 14 and the pipe top of the connecting portion 13 are set to have substantially the same height, and are made substantially coincident with the ground surface GL.
[0028]
As a result, when the drainage trough 10 is used, for example, since various miscellaneous drainage devices are above the ground surface GL, when drainage from above (including on the floor) flows down to the outdoor drainage main pipe 106, there is a problem. Such an elbow body and a vertical pipe are not required, and the installation space can be saved accordingly, that is, space can be saved, and installation can be performed extremely easily even in a very small land.
[0029]
When the outdoor drainage main pipe 106 is deeply buried and soil cover increases, the pipe length of the intermediate height adjusting member 15 provided between the inspection tube member 11 and the inverter member 12 is appropriately selected. Therefore, the height can be adjusted very easily.
[0030]
In addition, since the opening / closing lid 14 and the pipe top of the connecting portion 13 substantially match the ground surface GL, the inflow pipe, for example, the indoor drain main pipe 5 side cannot be covered with soil, and there is a concern about protection thereof. Since 10 is installed near the building 2, the indoor drain main pipe 5 side is protected from external force by a foundation such as concrete, and there is no concern about it.
[0031]
"First Embodiment"
Next, a first embodiment of the present invention will be described.
[0032]
1 to 5, the drainage trough 10 of the first embodiment is an application example of a specific place as follows.
[0033]
For example, this is an application example used for an outdoor drainage pit in a centralized collective drainage underfloor plumbing facility disclosed in Japanese Patent Application Laid-Open No. 2002-327474 of the present applicant.
[0034]
That is, the indoor drainage main pipe 5 is provided in the moisture-proof concrete 3 below the floor 8 of the building 2, and the indoor drainage main pipe 5, which is inevitably located above the ground surface GL, is inevitably provided at a predetermined burial depth (minimum). The present invention is applied to the drain mast 10 for step-joining (drop joining) with the outdoor drain main pipe 106 having about 20 cm) to exhibit its characteristics.
[0035]
In order to connect the indoor drain main pipe 5 to the drain basin 10 as shown in FIG. 1, a downward first 45-degree elbow 16, a 45-degree inclined pipe 17, and an upward second 45-degree pipe are used indoors. A gentle step formed by a first horizontal pipe 20 and a 90-degree bent pipe 21 penetrating a cloth foundation 24 erected on an elbow 18, a footing foundation 19, and a second horizontal pipe (drain branch pipe) 23. A joint structure 22 is used.
[0036]
Therefore, since the step joining structure 22 is combined with the drainage trough 10 of the present embodiment, the gradient becomes further gentle, and generation of negative pressure in the flow path can be prevented as much as possible.
[0037]
Then, there is a constructional feature that the downstream side of the stepped joint structure 22 is connected by simply inserting it into the inflow pipe connecting portion 13 of the drainage drain 10.
[0038]
This will be described in more detail in terms of the construction method. In the construction of a detached house such as a wooden house, the following construction is generally performed in the first place.
[0039]
That is, in the construction of a detached house such as a wooden house, after excavation, a digging groove having a predetermined width and depth is formed. The fabric of the cloth base 24 is treated with a drain pipe sleeve (void pipe).
[0040]
Then, after the concrete is hardened, the form is removed so as not to damage the cloth foundation 24, and the soil is backfilled. On the following day, a construction method of re-digging and installing a drainage basin for connection with the step joint structure 22 is being performed.
[0041]
However, the construction method using the drainage masu 10 of this embodiment is performed as follows.
[0042]
That is, when the form is removed, the outdoor drainage main pipe 106 and the drainage trough 10 are immediately installed in the excavation trench of the root cutting. Therefore, the cloth foundation 24 and the drainage mast 10 and the like are in a state of being very close to each other with the amount of protrusion of the footing foundation 19 interposed therebetween.
[0043]
Therefore, the position of the drainage trough 10 in the outdoor drainage main pipe 106 is set on the axial extension of the drainage sleeve in the formwork of the cloth foundation 24, that is, on the upstream side of the pipe axial extension of the first horizontal pipe 20. set.
[0044]
If it is set at the intersection of the first horizontal pipe 20 with the pipe axis, the connection with the downstream side of the step joint structure 22 is simply inserted because the drainage trough 10 and the cloth foundation 24 are very close. Not only does it make it difficult, but it cannot absorb construction errors.
[0045]
Also, if the position of the drainage trough 10 is set on the downstream side, the waterfall in the drainage trough 10 will be disturbed due to the results of experiments and the reasons described below.
[0046]
Now, these outdoor drainage main pipes 24 and drainage troughs 10 are temporarily buried, and a step junction groove 22 is constructed. Then, the drainage drainage troughs 10 through a 90-degree bent pipe (elbow) 21 and a second horizontal pipe 23 are drained. Connect with
[0047]
Therefore, according to the construction method using the drainage trough 10 of the present embodiment as described above, digging is eliminated twice for the installation of the drainage trough 10, and cost reduction can be achieved by labor saving and process reduction. .
[0048]
Therefore, this construction method is convenient for use of the outdoor drainage trough 10 in the collective drainage system because the drainage trough 10 is only one or a little, but is not limited to this. Applicable to main pipe construction method.
[0049]
"Detailed explanation of drainage 10"
The above-mentioned foundation concrete, that is, the drainage basin 10 installed near the cloth foundation 24 will be described in further detail.
[0050]
In FIG. 2, an opening / closing lid 14 is provided at the upper end of the inspection tube member 11 of the drainage trough 10, the height of which can be adjusted. One (or two or more) connecting portions for inflow pipes are provided adjacent to the opening / closing lid 14. A 13 ring rubber socket 13A is provided.
[0051]
The drainage trough 10 has a baffle (a deflector) on the axial extension of the rubber ring receiving port 13 in order to make the drainage from the rubber ring receiving port 13A flow down to the outdoor drain main pipe 106 with a drop and to make the flow smooth. A downward (or U-turn) guide member 25, which is called a body, is detachably provided so that the guide member 25 can be taken out when the opening / closing lid 14 is opened. That is, one type of internal sub-tubular U-turn member is incorporated.
[0052]
When the downward guide member 25 of this flow is particularly constituted by a baffle elbow 25A, it is possible not only to prevent the wastewater from scattering around and to adhere to the solid matter in the wastewater due to the scattering, but also to form the step-joining structure 22 and the rubber ring receiving port 13A. Can be guided to the invert 26 by turning the flow of the drainage, which travels straight horizontally, downward smoothly.
[0053]
As described above, since the drainage that travels straight horizontally is forcibly turned downward, the drainage has a reaction force at that time.
[0054]
Therefore, if the inverting member 12 is the invert 26 such as a straight or a merging, it is dropped to another second flow, for example, the toilet drainage. As a result, it may collide with the second flow and scatter solids in the second flow.
[0055]
The invert 26 allows a straight type starting spherical invert to flow out best for the U-turn member. However, when there is another second flow, the straight type is used. The stepped spherical invert is well matched to the U-turn member and can be joined.
[0056]
Therefore, when the direction of the outlet side of the baffle elbow 25A is directed to the downstream direction in the invert 26 to absorb this reaction force, that is, when the U-turn is performed, unexpectedly, this waterfall falls into the second flow. To join smoothly. Therefore, in combination with the effect of the installation in the extremely narrow land, the space can be saved, and the drainage is not disturbed or scattered due to a waterfall, and a smooth flow can be obtained.
[0057]
That is, the direction of the flow of the rubber ring receiving port 13A is directed to the downstream direction in the outdoor drainage main pipe 106, and therefore, the flow direction of the indoor drainage main pipe 5 is connected to the outdoor drainage main pipe 106 so as to make a U-turn inside the drainage pipe 10. I do. In other words, the drainage of the arrow a is made U-turn as shown by the arrow a while the drainage of the arrow a is dropped by the drainage trough 10.
[0058]
In sum, the drainage trough 10 has a branch pipe connection portion (13) as an inflow port to which a drainage branch pipe (23) is connected from the downstream side. There are members (25, 34) for making U-turn from the branch pipe connection portion (13) toward the outlet provided at the lower part of the drainage trough 10 from the downstream side, and further, there is a member (25, 34) at the lower part thereof. Since the outlet is configured to be connected to the outdoor discharge main pipe 106, the pipe is a space-saving pipe capable of absorbing various construction errors, and furthermore, there is no turbulence or scattering of the drainage caused by a waterfall, and the outlet is smooth. It can provide a useful drainage that exerts a natural flow.
[0059]
"Further detailed explanation of drainage masturbation 10"
The drainage trough 10 will now be described in more detail.
[0060]
In FIG. 3, a synthetic resin opening / closing lid 14 is provided at the upper end portion of the inspection tube member 11 made of polyvinyl chloride injection molding so that the height can be adjusted slightly, and the lid 14 is sealed via a packing 27.
[0061]
For this height adjustment, the outer surface of the ring-shaped synthetic resin lid frame 28 in which the opening / closing lid 14 is fitted, and the inner surface of the upper end portion of the inspection tube member 11 are screwed with the screw portion 29. The height of the opening / closing lid 14 can be finely adjusted by screwing and retracting the screw portion 29.
[0062]
Therefore, the pipe top of the inflow pipe connecting portion 13 becomes lower by the height of the lid frame 28, and therefore, the same including the lid frame 28 is called.
[0063]
Then, in order to prevent earth and sand or infiltration water from entering the screw portion 29, a folded portion 30 is provided at the upper end of the lid frame 28 so as to cover the upper end outer surface of the inspection tube member 11.
[0064]
Therefore, it is possible to prevent the inspection tube member 11 and the lid frame 28 from penetrating without increasing the number of parts even though they are the two minimum parts.
[0065]
In addition, this height adjustment is performed when the pipe length of the inspection tube member 11 or the height adjustment member 15 is not particularly taken into consideration, or when it is already assembled, adjustment at the time of construction on the ground surface GL or adjustment for newly laid asphalt. Used for etc.
[0066]
Next, the inspection tube member 11 is formed of a cheese-like tube as described above, and a spout 31 is formed at the lower portion of the inspection tube member 11 to adjust the height. It is inserted into the upper end side of the member 15.
[0067]
The lower end of the height adjusting member 15 is inserted into a socket 40 formed on the upper opening side of the inverter member 12.
[0068]
Next, a baffle elbow 25A is made of a PVC (synthetic resin) injection molding. The baffle elbow main body 33 and the baffle elbow main body 33 are used to make the flow of drainage water fall as shown by an arrow a and further make a U-turn. A semi-bowl-shaped U-turn assisting guide member 34 and a connecting member 35 that connects these members and that can be adjusted in height are adhered and joined to each other to form an integral monolith. Therefore, these specific members are collectively referred to as U-turn members.
[0069]
The lower end of the U-turn assist guide member 34, that is, the lower end of the U-turn member substantially coincides with the top of the outdoor drain main pipe 106 so as not to impede the full flow of the second flow, and to prevent solid matter. Is prevented from locking.
[0070]
When the diameter of the rubber ring socket 13A is, for example, 75 mmφ, the inlet side of the baffle elbow main body 33 has an oval shape of about 97 mm and 83 mm (see FIG. 5A). The outlet side is constituted by a modified elbow having a circular shape of about 77 mmφ. Of course, the inlet side of the baffle elbow main body 33 may have a circular shape having substantially the same diameter as the rubber ring receiving port 13.
[0071]
Next, an example of attachment and detachment of the baffle elbow 25A to and from the inspection tube member 11 will be described.
[0072]
4 and 5, FIG. 4A is a plan view of the inspection tube member 11, FIG. 4B is a longitudinal sectional view of FIG. 4A, FIG. 4C is a sectional view of FIG. FIG. 3A is a side view of FIG.
[0073]
In these figures, angle-shaped locking pieces 36, 36 having a pair of left and right horizontal portions are integrally protruded from an outer surface of a substantially central portion of the baffle elbow main body 33.
[0074]
The tip of the locking piece 36 is formed in an arc so as to match a horizontal arc in the shelf 37 described later.
[0075]
Angled ledges 37, 37 having a pair of left and right horizontal circular arc-shaped horizontal portions project from the inner surface of the inspection cylinder member 11 on the shaft extension side of the rubber ring receiving port 13A. .
[0076]
At the rear end of this shelf 37 (on the opposite side of the rubber ring receiving port, the same applies hereinafter), an insertion guide piece 38 inclined rearward upward is continuously provided.
[0077]
Therefore, the inlet side of the baffle elbow main body 33 to which the U-turn assisting guide member 34 and the like are attached is directed toward the outlet side of the rubber ring receiving port 13 and the holding portion 39 projecting upward is gripped. When the stop piece 36 is slightly forcibly inserted from above along the insertion guide piece 38, the locking piece 36 is guided forward by the insertion guide piece 38, and is placed on the shelf 37, and the locking piece 36 Is joined to the arc-shaped vertical portion of the shelf 37.
[0078]
At this time, the inlet of the baffle elbow 25A is closely joined to the outlet of the rubber ring receiving port 13A. Of course, in order to take out the baffle elbow 25A for inspection and cleaning, it is sufficient to open the opening / closing lid 14, hold the grip portion 39, and pull it out.
[0079]
The screw portion (female screw) 29 is provided on the inner periphery of the upper end of the inspection tube member 11, and is formed of a discontinuous screw body (of course, a whole circumference screw body is also possible).
[0080]
"Second embodiment"
Next, a second embodiment of the present invention will be described.
[0081]
In FIG. 6, a synthetic resin opening / closing cover 14 is directly provided in a sealed manner at the upper end of the inspection tube member 11 made of PVC injection molding via a packing 27. The connecting portion 13 for the inflow pipe, which is the inflow port, that is, the receiving port 13B is formed integrally with the opening / closing port in the horizontal direction.
[0082]
The diameter of the receiving port 13B is made slightly larger, and a reduced diameter socket 39 called an increser is fitted into the receiving port 13B so that the second horizontal pipe 23 of the stepped connection structure 22 can be bonded and bonded. ing.
[0083]
Since the receiving portion of this reduced-diameter socket 39 is eccentric, the height of the opening / closing lid 14 can be finely adjusted by rotating the receiving portion after the drain 10 is installed. Of course, an S-type socket may be externally fitted instead of the reduced diameter socket 39.
[0084]
The inspection cylinder member 11 is provided with an inverting member 12 via a height adjusting member 15. However, if the height adjusting member 15 is made long, the drainage water flows down like a waterfall. A downward guide member 25 called a deflector is also provided in the inspection tube member 11 on the extension of the axis of the connection portion 13 so as to be detachable so as not to hinder inspection and cleaning. Drainage that goes straight horizontally is guided to the lower invert 26. That is, a guide member for connecting the flow from the inflow port to the outflow port in a U-turn shape is provided.
[0085]
In the case where the number of the connection portions 13 is one as shown in the figure, the deflector is formed of a bowl with one mountain. In the case of the two (plural) connection portions 13, the number of the mountain (a plurality of mountains) is two. It is made of a bowl and made into one body, making it easy to attach and detach.
[0086]
Therefore, this drainage trough 10 is used not only for the outdoor drainage trough 10 in the collective collective drainage system but also for general outdoor drainage troughs, that is, at the starting point, right-angle corner, middle point, etc. of the main drainage pipe 106. It can be used by changing the bowl shape of the deflector. Of course, this deflector is not essential for the drain 10 and may not be used in the case of the starting drain. In addition, when it is slightly away from the foundation of the building 2, the horizontal inflow pipe may be protected by asphalt or the like.
[0087]
In addition, a finned tube is formed on a part of the outer peripheral surface of the inspection tube member 11, and the strength is enhanced by the uneven shape 41.
[0088]
Inverting member 12 is formed with an invert 26 at the bottom thereof. In the case of the straight type, inlet port 42 on the inlet side and outlet port 42 on the outlet side are formed on the same axis so that it can be used outdoors. It is adhesively bonded to the drain main pipe 106. Of course, these receiving ports 42, 42 may be connection parts such as rubber ring receiving ports.
[0089]
The protection of the horizontal connection portion 13 for the inflow pipe is not limited to the foundation of the building, but may be thin asphalt or other structures such as a fence or a permanent tank.
[0090]
【The invention's effect】
According to the present invention, the drainage trough (10) has a built-in guide member for regulating the flow in a U-turn shape. Therefore, the outdoor drainage main pipe (106) having the drainage trough (10) on the pipe axis is installed in the building. The drain can be made to be extremely close to the space-saving type (10), and the flow of the head can be made smooth.
[0091]
In addition, since the inspection tube member is integrally provided with an opening / closing lid and a connection portion for a horizontal inflow pipe substantially coinciding with the surface of the ground, the drainage from the upper part can be directly performed, while the structure is simple and possible. Even in a small land, the connection can be made very easily by simply connecting.
[0092]
In particular, instead of not covering the horizontal inflow pipe with soil, it is protected by other facilities, so it is not subjected to external force and the drainage head can be increased accordingly, or the lower inverting member is placed on the ground surface. The access to the main drainage pipe can be buried shallowly.
[Brief description of the drawings]
FIG. 1 is a schematic view of a first embodiment of the present invention.
FIG. 2 is a longitudinal sectional view of FIG.
FIG. 3 is a detailed view of a main part of FIG. 1;
FIG. 4 is a detailed view of a main part of FIG. 3;
FIG. 5 is a detailed view of another main part of FIG. 3;
FIG. 6 is a longitudinal sectional view of a second embodiment of the present invention.
FIG. 7 is a conventional example.
[Explanation of symbols]
10: drainage, 11: inspection tube member, 12: invert member, 13: connecting part, 14: open / close lid, 25: downward guide member

Claims (9)

In the drainage basin consisting of the check tube and the invert,
An inflow port provided at the upper part of the drainage trough, and a guide member for making the inflow port and the invert outflow port into a U-turn flow is incorporated therein. . In the drainage basin consisting of the inspection tube member and the separate inverter member,
A drain for installation in a house, characterized in that a connecting portion for a horizontal inflow pipe as an inflow port is formed integrally with and protruded from the inspection tube member, and the top of the tube is made substantially coincident with an opening / closing lid of the inspection tube member. In the drainage basin consisting of the inspection tube member and the separate inverter member,
The above-mentioned inspection tube member is integrally formed with a connecting portion for a horizontal inflow pipe as an inflow port, and is protruded, and the top of the pipe is substantially positioned on the surface of the ground. . 4. The drainage device according to claim 2, wherein a downward guide member for connecting the connection portion and the inverter is detachably provided. 5. The drainage according to claim 4, wherein the downward guide member of the flow has a curved surface corresponding to the number of connection portions for the inflow pipe. 5. The drainage according to claim 4, wherein the downward guide member of the flow comprises an elbow and a U-turn assisting member. The flow of the connecting portion is reversed with respect to the other flow in the inverting member, and the drainage from the connecting portion is U-turned while falling so as to merge with the other flow. Drainage described in item 2, 3, 4, 5 or 6. The outdoor drainage according to any one of claims 1 to 7, wherein a downstream side of an underfloor piping system for centralized collective drainage is connected to the connection portion. In the drainage basin consisting of the inspection tube member and the separate inverter member,
The inspection tube member is composed of one tooth-shaped tubular body having a vertical portion in the T-shape having a diameter smaller than that of the horizontal portion and being biased to one end of the horizontal portion. A drainage made of PVC that can be installed near the foundation of a building, characterized in that it has a pipe connection and an open / close lid at one end.

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