JP4911499B2 - Drainage pipe structure and large joint used therefor - Google Patents

Description

  The present invention relates to a drain pipe structure and a large bend joint used therefor. More specifically, the present invention relates to a drain pipe structure that allows drainage from household equipment other than the disposer and the disposer to flow into the drainage lateral branch pipe and a large joint used therefor.

  2. Description of the Related Art Conventionally, drainage facilities such as a sink equipped with a disposer for finely crushing food waste and flowing it into sewage and further living equipment such as a dishwasher are known.

  FIG. 6 is a schematic configuration diagram of a conventional drainage facility 100 including the disposer 103. The disposer 103 is connected to the sink 102 and finely crushes solids such as food flowing in from the sink 102. The disposer 103 is connected to a disposer drain pipe 120 for discharging the finely crushed solid matter together with drainage flowing from the sink 102. The disposer drain pipe 120 is connected to a drain side branch pipe 170 via a three-way joint 160, and waste water containing solids from the disposer drain pipe 120 passes through the drain side branch pipe 170 to a sewage pipe (see FIG. (Not shown).

  On the other hand, the dishwasher drain pipe 140 is connected to the dishwasher 104. The dishwasher drain pipe 140 is connected to the drainage horizontal branch pipe 170 via a three-way joint 160, and the wastewater from the dishwasher 104 passes through the dishwasher drainage pipe 140 and the drainage horizontal branch pipe 170. It flows into a sewage pipe (not shown).

The disposer drain pipe 120 is formed with a relatively large inner diameter (for example, about 40 mm to 50 mm) because solids such as crushed food waste flow into the disposer drain pipe 120. On the other hand, since the dishwasher 104 does not discharge relatively large solids unlike the disposer 103, the dishwasher drain pipe 140 is formed with a relatively small inner diameter (for example, about φ25 mm). . For this reason, the dishwasher drain pipe 140 is connected to the three-way joint 160 via different diameter sockets 150 having different inner diameters at both ends.
Japanese Utility Model Publication No. 5-79185

  Normally, as shown in FIG. 7, a three-way joint 160 connected to the disposer drain pipe 120 so that drainage containing solids discharged from the disposer drain pipe 120 does not flow into the dishwasher drain pipe 140. The branch pipe 160a is formed so as to be inclined toward the drainage horizontal branch pipe 170 from the upper side to the lower side. However, when a large amount of wastewater flows into the disposer drain pipe 120 at a time, a part of the drainage may also flow into the dishwasher drain pipe 140 side. In this case, when the wastewater flowing into the dishwasher drain pipe 140 is drained to the drainage horizontal branch pipe 170, the solid content mixed in the drainage is changed to the different diameter socket 150, the three-way joint 160, etc. There is a risk of being left behind and deposited in the diameter portion 150a). If the solid content remains and accumulates, it is necessary to perform maintenance to remove the solid content at any time, so that there is a problem that the maintainability is lacking.

  For example, in Patent Document 1, in a three-way joint in which a branch pipe is connected to a main pipe, the branch pipe is connected at an acute angle with respect to the main pipe inflow side, and the main pipe inflow side is more branched than the main pipe outflow side. A technique for preventing the fluid from the branch pipe from flowing back toward the inflow side of the main pipe by being provided close to the pipe is disclosed. Specifically, in Table 1 of Patent Document 1, in the direction in which the branch pipe extends, the pipe bottom on the main pipe inflow side is positioned from the position of the main pipe outflow side to the main pipe outflow side (Patent Document 1). An example is shown in which it is positioned up to the dashed line B) in FIG. More specifically, an example is described in which the distance from the main tube outflow side tube bottom to the main tube inflow side tube bottom is about 30% of the main tube outflow side inner diameter.

  It is conceivable to apply the technique described in Patent Document 1 to the three-way joint 160. However, with the technique described in Patent Document 1, it is difficult to sufficiently suppress the backflow to the main pipe inflow side. When the fluid flowing into the branch pipe is a fluid as in Patent Document 1, the main pipe inflow side is positioned higher than the main pipe outflow side even if a reverse flow to the main pipe inflow side occurs. Therefore, the fluid that flows back to the main inflow side flows out to the main outflow side as the water level on the main outflow side decreases. Therefore, no major problems occur. On the other hand, when solid content is contained like the waste water from a disposer, as above-mentioned, if a backflow arises, the problem of residual deposit of solid content will arise. In other words, the technique described in Patent Document 1 cannot sufficiently suppress the solid accumulation of solid content due to the backflow.

  This invention is made | formed in view of such a point, The place made into the objective is to provide the drain pipe structure excellent in maintainability.

  In order to solve the above-mentioned problems, a drain pipe structure according to the present invention is a drain pipe structure that allows drainage from household equipment other than a disposer and a disposer to flow into a drainage horizontal branch pipe, and is a drain for drainer connected to the disposer. It has a pipe, a large joint, and a drainage pipe for household equipment. The large curved joint includes a large curved pipe connecting the drain pipe for the disposer and the horizontal drain branch pipe, and a joint branch pipe coupled to the curved portion of the large curved pipe. The drainage pipe for life equipment connects the joint branch pipe and the life equipment. The joint branch pipe is provided such that the bottom of the joint portion of the joint branch pipe with the large curved pipe is positioned higher than the pipe center of the drainage horizontal branch pipe. In other words, the bottom of the joint branch pipe is provided closer to the opening than the pipe center of the drainage side branch pipe.

  Usually, the inner diameter of the drainage lateral branch pipe is determined by the volume per unit time of drainage flowing into the drainage lateral branch pipe. Specifically, the inner diameter of the drainage side branch pipe is designed so that the water level in the drainage side branch pipe is about the center of the drainage side branch pipe when the volume of drainage flowing in per unit time is the largest. The For this reason, as shown in the above configuration, the water level in the drainage side branch pipe is set by positioning the bottom of the connecting portion of the joint branch pipe with the large curved pipe at a position higher than the pipe center of the drainage side branch pipe. Even in the case of rising, it is possible to effectively suppress drainage containing solids flowing through the disposer drain pipe from flowing into the joint branch pipe. As a result, the solid content contained in the drainage from the disposer is suppressed from remaining on the joint branch pipe and the household equipment drain pipe, and the maintainability is improved.

  From the standpoint of more reliably regulating the solid deposits contained in the drainage from the disposer on the joint branch pipe and the drainage pipe for household equipment, the bottom of the joint branch pipe connecting the large curved pipe is the drainage side branch More preferably, it is provided so as to be positioned higher than the top of the tube. In other words, it is preferable that the bottom of the joint branch pipe is provided closer to the opening than the top of the drainage side branch pipe.

  According to this, even when an unexpected situation occurs and the water level in the drainage horizontal branch pipe reaches the top of the drainage horizontal branch pipe, the drainage joint branch pipe containing solids flowing through the drainage drain pipe The inflow to is reliably suppressed. As a result, maintainability is particularly improved.

The joint branch pipe is arranged substantially parallel to the drainage horizontal branch pipe . The joint branch pipe is preferably disposed substantially horizontally. The joint branch pipe is preferably substantially parallel to the axial direction of one opening (the drain side branch pipe side opening (which may be a receiving port or an insertion port)) of the large curved joint .

  The inner diameter of the joint branch pipe is preferably smaller than the inner diameter of the disposer drain pipe. Since the waste water which does not contain so much solid matter from the household equipment flows into the joint branch pipe, the joint branch pipe does not need to have a large diameter. In addition, by reducing the inner diameter of the joint branch pipe, the joint branch pipe is connected so that the bottom of the connecting portion of the joint branch pipe to the large curved pipe is positioned higher than the pipe center of the drainage horizontal branch pipe. Further, it is possible to make the large joint and the drain pipe structure compact. In other words, even in a compact large joint, it is possible to realize a configuration in which the bottom of the connecting portion of the joint branch pipe to the large curved pipe is positioned higher than the pipe center of the drainage horizontal branch pipe.

  The large curved pipe is connected to the large curved pipe main body and the opening for connecting the drain pipe for the disposer having a larger inner diameter than the inner diameter of the large curved pipe main body and substantially the same as the outer diameter of the disposable pipe. It may be a mouth or a mouth). In this case, it is preferable that the inner diameter of the joint branch pipe is smaller than the inner diameter of the large curved pipe body. Moreover, it is preferable that the joint branch pipe is connected to the end of the large curved pipe body on the opening side. That is, it is preferable that the joint branch pipe is attached to the upper part of the large curved pipe main body as much as possible within a range where it does not conflict with the opening. According to this, it can suppress more reliably that solid content contained in the waste_water | drain from a disposer remains in a joint branch pipe.

  The joint branch pipe is preferably arranged so as to extend in a direction opposite to the extending direction of the drainage horizontal branch pipe (the axial direction of the opening of the large curved pipe on the drainage horizontal branch pipe side). According to this, the drainage from the joint branch pipe flows smoothly into the drainage horizontal branch pipe. The joint branch pipe may be provided anywhere as long as it is a curved portion of the large curved pipe, or a plurality of joint branch pipes may be provided.

  The joint branch pipe is separated from the branch pipe body when viewed from the branch pipe main body opening to the inner wall of the large curved pipe and the direction in which the disposer drain pipe extends (the axial direction of the opening of the large curved pipe on the disposer drain pipe side). It is preferable to have a flange extending inward of the large curved pipe so as to cover the opening of the branch pipe body. According to this, the drainage flowing through the disposer drain pipe is effectively suppressed from flowing into the branch pipe body. Normally, the waste water flowing through the disposer drain pipe flows along the inner wall of the disposer drain pipe. For this reason, when the collar part of the disposer drain pipe is not provided, drainage may flow into the branch pipe body along the inner wall of the disposer drain pipe. In addition, even if the collar is provided, if the collar is small and the opening of the branch pipe main body is not completely covered when viewed from the direction in which the drain pipe for the disposer extends, the drainage is still the drain pipe for the disposer. There is a risk of flowing into the branch pipe body along the inner wall. When viewed from the direction in which the disposer drain pipe extends, it is possible to effectively suppress the inflow of drainage through the inner wall of the disposer drain pipe into the branch pipe body by providing a collar that covers the opening of the branch pipe body. can do. From the viewpoint of more effectively suppressing the inflow of drainage that travels along the inner wall of the disposer drain pipe into the branch pipe body, the tip of the collar portion is in plan view from the direction in which the disposer drain pipe extends, It is particularly preferable that the end of the pipe bottom is placed at the same position, or it extends to the inside of the large curved pipe from the end of the pipe bottom of the branch pipe body.

  In general, when flowing into the branch pipe body through the inner wall of the disposer drain pipe, the solid content does not enter the branch pipe body so much that the problem does not become as great as when the drainage flows backward. For this reason, a collar part is not necessarily an essential structure for this invention.

  The large joint according to the present invention is for connecting a drain pipe for disposer connected to a disposer and a drain pipe for living equipment extending from living equipment other than the disposer to the drainage horizontal branch pipe. The large joint according to the present invention includes a large curved pipe that connects the drain pipe for the disposer and the drainage horizontal branch pipe, and a joint branch pipe that is connected to the curved portion of the large curved pipe and is connected to the drain pipe for life equipment. I have. The joint branch pipe is provided so that the bottom of the connecting portion with the large curved pipe is located closer to the end of the drain pipe for the disposer of the large curved pipe than the center of the drain side branch pipe side end of the large curved pipe. Yes.

  According to the above configuration, even if the water level in the drainage horizontal branch pipe rises to the center of the drainage horizontal branch pipe, which is the normal highest water level, wastewater containing solids flowing through the disposer drain pipe is discharged. Inflow into the joint branch pipe is effectively suppressed. As a result, the solid content contained in the drainage from the disposer is suppressed from remaining on the joint branch pipe and the household equipment drain pipe, and the maintainability is improved.

  From the standpoint of more reliably regulating the solid deposits contained in the drainage from the disposer on the joint branch pipe and the drainage pipe for household equipment, the bottom of the joint branch pipe connecting the large curved pipe is the drainage side branch More preferably, it is provided so as to be positioned higher than the top of the tube.

  As described above, according to the present invention, high maintainability of the drain pipe structure is realized.

  Hereinafter, the preferable form which implemented this invention is demonstrated in detail, giving the drainage facility 1 as a sink as an example. In addition, the form demonstrated below is only an illustration, and this invention is not limited to the following embodiment.

<< Schematic configuration of drainage facility 1 >>
First, a schematic configuration of the drainage facility 1 according to the present embodiment will be described. FIG. 1 is a schematic configuration diagram illustrating a piping configuration of a drainage facility 1 according to the present embodiment. The drainage facility 1 includes a sink 2. A disposer 3 is connected to the sink 2. A disposer drain pipe 20 is connected to the disposer 3. The disposer drain pipe 20 is connected to a drain side branch pipe 40 through a large joint 30. The drainage horizontal branch pipe 40 is connected to a sewer pipe (not shown) through various pipes.

  Waste water containing solids such as food waste flows into the disposer 3 from the sink 2. The inflowing solid matter is finely crushed in the disposer 3 so that the crushed solid matter flows into the sewer pipe (not shown) through the disposer drain pipe 20, the large joint 30 and the drainage side branch pipe 40 together with the drainage. It has become.

  In the drainage facility 1, a daily life device 4 different from the disposer 3 is arranged. The living device 4 does not discharge wastewater containing a large amount of solids, such as a disposer, as in a dishwasher, for example, and does not discharge wastewater containing a small amount of solids or substantially free of solids. It is the kind of discharge. The living device 4 is not particularly limited as long as it is of this kind.

  The living device 4 is connected to a living device drain pipe 50 for discharging the waste water from the living device 4. The household appliance drain pipe 50 is connected to the drainage horizontal branch pipe 40 via the large joint 30. For this reason, the waste water from the household equipment 4 flows into the sewer pipe through the household equipment drain pipe 50, the large joint 30 and the drainage horizontal branch pipe 40.

<< Configuration of Omagai Joint 30 >>
Next, the configuration of the large joint 30 will be described in detail with reference to FIGS. The large curved joint 30 includes a large curved pipe 31 and a joint branch pipe 35. The large curved pipe 31 is for connecting the disposer drain pipe 20 and the drain side branch pipe 40. Specifically, the large curved pipe 31 includes a curved large curved pipe main body 32 and openings 33 and 34 connected to both ends of the large curved pipe main body 32. As shown in FIG. 5, the opening 33 has an inner diameter larger than the inner diameter of the large curved pipe body 32 and substantially equal to the outer diameter of the disposer drain pipe 20, and the disposer drain pipe 20 contacts the end surface 33a. In this way, it is inserted into the opening 33 and fixed. On the other hand, the opening 34 has an inner diameter that is larger than the inner diameter of the large curved pipe body 32 and substantially equal to the outer diameter of the drainage lateral branch pipe 40, and the drainage lateral branch pipe 40 is in contact with the end face 34a. It is inserted and fixed. In the present embodiment, the inside diameter of the disposer drain pipe 20, the inside diameter of the large curved pipe body 32, and the inside diameter of the drain side branch pipe 40 are set to be substantially the same.

  The inner diameters of the disposer drain pipe 20, the large curved pipe main body 32, and the drainage horizontal branch pipe 40 are not particularly limited, and may be appropriately set according to the amount of drainage per unit time. For example, it can be set to about φ40 mm to 50 mm. The inner diameter of the joint branch pipe 35 is not particularly limited, and may be set as appropriate according to the amount of drainage of the life equipment 4. However, since the joint branch pipe 35 is for discharging waste water that does not contain so much solids as the drain pipe 20 for the disposer or the like, the joint branch pipe 35 may not have a large inner diameter. The inner diameter of the joint branch pipe 35 can be about φ20 to 30 mm (for example, about 25 mm).

  The joint branch pipe 35 is connected to the curved portion of the large curved pipe 31 in substantially parallel to the drainage horizontal branch pipe 40 (that is, substantially parallel to the axial direction of the opening 34 of the large curved pipe 31). Further, the joint branch pipe 35 is disposed so as to extend in a direction opposite to the direction in which the drainage horizontal branch pipe 40 extends (the axial direction of the opening 34). The inner diameter of the joint branch pipe 35 is set to be substantially the same as the outer diameter of the household appliance drain pipe 50, and the household appliance drain pipe 50 is inserted and fixed. The base end portion 35a of the joint branch pipe 35 includes an inner surface 35b having a polygonal cross section (specifically, a substantially regular hexagonal cross section) (see also FIG. 4). The relative position relationship between the household appliance drain pipe 50 and the large joint 30 is determined by bringing the household appliance drain pipe 50 into contact with the end surface 35c of the inner surface of the base end portion 35a.

  However, in the present invention, the connection form between the household appliance drain pipe 50 and the large joint 30 is not particularly limited. For example, the inner diameter of the central portion of the joint branch pipe 35 is made smaller than the outer diameter of the drainage pipe 50 for living equipment, and an opening that is expanded to the outer diameter of the drainage pipe 50 for living equipment is provided at the tip. The household equipment drain pipe 50 may be inserted and fixed in the opening. Similarly, the connection mode of the disposer drain pipe 20 and the drainage side branch pipe 40 and the large joint 30 is not particularly limited.

-Shape of collar 36-
The joint branch pipe 35 includes a branch pipe main body 37 and a flange portion 36. The branch pipe main body 37 is formed in a cylindrical shape that opens to the inner peripheral surface of the large curved pipe 31 (specifically, the large curved pipe main body 32). The flange 36 covers the opening of the branch pipe main body 37 from the end surface of the branch pipe main body 37 when viewed from the direction in which the disposer drain pipe 20 extends (that is, the opening of the branch pipe main body 37 is visible). It is formed so as to extend inward of the large curved pipe body 32 (see also FIG. 3).

  More specifically, the flange portion 36 is formed in a cylindrical shape extending from the end surface of the branch pipe main body 37, and is cut out so that the lower half of the distal end portion is flush with the inner peripheral surface of the large curved pipe main body 32. It is. The flange 36 has an upper tip 36a that is placed with the base end 35d of the bottom of the branch pipe main body 37 when viewed from the direction in which the disposer drain pipe 20 extends, or a larger curved pipe body than the base end 35d. 32 is formed so as to protrude inside (extend to the inside).

-Connection position of joint branch pipe 35-
Next, the connection position of the joint branch pipe 35 to the large curved pipe main body 32 will be described with reference to FIG. The joint branch pipe 35 is connected to the end of the large curved pipe main body 32 on the opening 33 side. That is, the joint branch pipe 35 is connected to the upper side of the large curved pipe main body 32 as much as possible. And the joint branch pipe 35 is provided so that the pipe bottom 35e of the connection part with the large curved pipe main body 32 may be located in a position higher in the vertical direction than the pipe center (C) of the drainage horizontal branch pipe 40. In other words, the joint branch pipe 35 is connected to the large curved pipe body 32 so that the pipe bottom 35 e is closer to the opening 33 than the pipe center (C) of the drainage horizontal branch pipe 40. Further, the joint branch pipe 35 is provided such that the pipe bottom 35 e of the connecting portion with the large curved pipe main body 32 is positioned higher in the vertical direction than the pipe top 40 b of the drainage horizontal branch pipe 40. In other words, the joint branch pipe 35 is connected to the large curved pipe main body 32 so that the pipe bottom 35 e is closer to the opening 33 than the pipe top 40 b of the drainage horizontal branch pipe 40.

<Action and effect>
Usually, the inner diameter of the drainage side branch pipe 40 is determined by the volume per unit time of the drainage flowing into the drainage side branch pipe 40. Specifically, the inner diameter of the drainage lateral branch pipe 40 is such that the water level in the drainage lateral branch pipe 40 is about the center (C) of the drainage lateral branch pipe 40 when the volume of drainage flowing in per unit time is the largest. Designed to be However, in this embodiment, the joint branch pipe 35 is positioned such that the pipe bottom 35e of the connecting portion with the large curved pipe main body 32 is positioned higher in the vertical direction than the pipe center (C) of the drainage horizontal branch pipe 40. Is provided. For this reason, even if the water level in the drainage horizontal branch pipe 40 rises, the wastewater containing the solid content flowing through the disposer drain pipe 20 flows into the joint branch pipe 35 and further to the household equipment drain pipe 50. Is effectively suppressed. As a result, the solid content contained in the waste water from the disposer 3 is suppressed from remaining on the joint branch pipe 35 and the household equipment drain pipe 50, and the maintainability is improved.

  Furthermore, in this embodiment, the pipe bottom 35e of the connecting portion with the large curved pipe main body 32 is provided so as to be positioned higher in the vertical direction than the pipe top 40b of the drainage lateral branch pipe 40. For this reason, even when an unexpected situation occurs in which the water level of the drainage side branch pipe 40 reaches the top 40b of the drainage side branch pipe 40, the drainage from the disposer drain pipe 20 is drained from the joint branch pipe 35. It is possible to effectively suppress the flow into the drainage pipe 50 for household appliances.

  The drainage flowing through the disposer drain pipe 20 flows along the inner peripheral surface of the disposer drain pipe 20 in a portion where the disposer drain pipe 20 faces in the vertical direction. However, at the portion of the large joint 30 where the flow direction of the drainage from the disposer drain pipe 20 changes, the drainage jumps. For this reason, for example, the joint branch pipe 35 has a relatively low position (opening 34) of the large curved pipe body 32 such that the bottom 35e of the base end of the joint branch pipe 35 is lower than the pipe center (C) of the drainage lateral branch pipe 40. In the case of being connected to a position close to it, a considerable amount of drainage may flow into the joint branch pipe 35 due to the jumping of drainage. On the other hand, in this embodiment, since the joint branch pipe 35 is connected to a relatively high position (position near the opening 33) of the large curved pipe main body 32, the drainage of the joint branch pipe 35 due to the jumping of drainage is performed. Inflow can also be effectively suppressed.

  In the present embodiment, the joint branch pipe 35 is set to have an inner diameter smaller than the inner diameter of the disposer drain pipe 20 (the inner diameter of the drainage horizontal branch pipe 40 is substantially the same as the inner diameter of the large curved pipe body 32). Even if the inner diameter of the joint branch pipe 35 is set to be relatively small as described above, waste water containing so much solid content does not flow into the joint branch pipe 35 in principle, so that there is no major problem. On the other hand, by making the joint branch pipe 35 relatively small in diameter, the pipe bottom 35e of the joint branch pipe 35 is positioned higher than the pipe center (C) of the drainage lateral branch pipe 40. While connecting the joint branch pipe 35, there exists an advantage that it becomes possible to make the large bend joint 30, and the drain pipe structure 10 compact. Thereby, the drain pipe structure 10 can be arranged in a narrow space.

  The joint branch pipe 35 is disposed so as to extend in a direction (right direction in FIG. 5) opposite to the direction in which the drainage horizontal branch pipe 40 extends (the axial direction of the opening 34 of the large curved pipe 31, left direction in FIG. 5). Has been. For this reason, the drainage from the joint branch pipe 35 smoothly flows into the drainage horizontal branch pipe.

  In the present embodiment, a flange 36 is provided. As a result, the drainage flowing along the inner wall of the disposer drain pipe 20 is suppressed from flowing into the joint branch pipe 35. For example, when a branch pipe is connected to a vertically extending straight pipe, the effect does not change regardless of the length of the collar portion. However, in this embodiment, since the joint branch pipe 35 is connected to the curved main curved pipe body 32, the opening of the branch pipe body 37 is viewed when the flange portion 36 is viewed from the direction in which the disposer drain pipe 20 extends. In the case where the upper end 36a of the flange 36 is located radially outside the base end 35d of the joint branch pipe 35 when viewed from the direction in which the disposer drain pipe 20 extends, The inflow of drainage into the joint branch pipe 35 cannot be sufficiently prevented. If the flange 36 is not intended to cover the opening of the branch pipe main body 37 when viewed from the direction in which the disposer drain pipe 20 extends, the drainage that has flowed along the inner wall of the disposer drain pipe 20 This is because, after being repelled by 36, there is a possibility that it will flow into the joint branch pipe 35 by hitting the pipe bottom 35 e of the joint branch pipe 35 positioned so as to protrude radially inward from the flange 36. By forming the flange 36 so as to cover the opening of the branch pipe main body 37 when viewed from the direction in which the disposer drain pipe 20 extends, the drainage repelled by the flange 36 flows into the joint branch 35. It can be effectively suppressed. As described above, it is necessary to set the protrusion amount of the flange portion 36 to a certain level or more, which is not a problem when connecting a branch pipe to a straight pipe extending vertically. This is the first problem when a branch pipe is provided at a curved portion.

  When the flange portion 36 is formed so as to cover the opening of the branch pipe body 37 when viewed from the direction in which the disposer drain pipe 20 extends, the flange portion 36 becomes longer as the connection position of the joint branch pipe 35 goes downward. Will have to do. For this reason, the flow path of the large curved pipe main body 32 becomes narrow, and efficient drainage becomes difficult. Therefore, when the collar portion 36 is formed so as to cover the opening of the branch pipe body 37 when viewed from the direction in which the disposer drain pipe 20 extends, the joint branch pipe 35 is compared with the large curved pipe body 32 as described above. There is also an advantage that a large flow path can be secured by connecting the upper part.

  As described above, in the present embodiment, the joint branch pipe 35 is described as being connected to the large curved pipe body 32 so as to extend in the direction opposite to the direction in which the drainage horizontal branch pipe 40 extends. As long as it is connected to the large curved pipe main body 32, it may be connected to extend in any direction. Moreover, when there are a plurality of living equipment, a plurality of drainage horizontal branch pipes 40 may be provided according to the intended use.

  Further, in the present embodiment, the example in which the flange portion 36 is provided has been described. However, the solid matter accumulation in the joint branch pipe 35 is effectively suppressed only by making the connection position of the joint branch pipe 35 higher than a predetermined position. Is done. For this reason, the collar part 36 is not necessarily an essential structure.

  INDUSTRIAL APPLICABILITY The present invention is useful for a drain pipe structure provided with a disposer and a drainage facility.

It is a schematic block diagram showing the piping structure of a drainage facility. It is a side view of a large curvature joint. It is a top view of a large curvature joint. It is the IV-IV arrow line view in FIG. It is a VV arrow line view in FIG. It is a schematic block diagram of the drainage facility provided with the conventional disposer. It is an expanded sectional view near the three-way joint of the drain pipe structure in the conventional drainage facility.

Explanation of symbols

1 Drainage facility
2 sink
3 Disposer
4 Living equipment
10 Drainage pipe structure
20 Disposer drain pipe
30 large joint
31 Omagari pipe
32 Omagari pipe body
33, 34 opening
35 Joint branch pipe
36
37 Branch pipe body
40 Drainage horizontal branch pipe
50 Drain pipe for household equipment

Claims (4)

Disposer drain pipe that is connected to the disposer and drains the disposer,
A drainage pipe for living equipment that is connected to a living equipment other than the disposer and that drains the living equipment other than the disposer,
A large joint that is connected to the drain pipe for the disposer and the drain pipe for the living equipment, and into which the drainage of the disposer and the drainage of living equipment other than the disposer flow,
A drainage side branch pipe connected to the Omagari joint, and from which the drainage from the disposer and life equipment other than the disposer flows out from the Omagari joint
With
The above large joint is
A large bend pipe connecting the drain pipe for the disposer and the horizontal drain pipe; and
A first opening that opens upward in the upper portion of the large curved pipe and to which the drainer drain pipe is connected;
A curved portion continuous downward from the first opening and curved sideways;
A second opening provided at the tip of the curved portion curved in the lateral direction and connected to the drainage lateral branch pipe at a position lower than the first opening;
A joint branch pipe provided at an upper part of the curved portion and connected to the drainage pipe for life equipment;
Have
The pipe bottom of the joint branch pipe is provided at a position higher than the pipe center of the drainage lateral branch pipe at the connecting portion where the curved portion and the joint branch pipe are connected.
The joint branch pipe is
Arranged to extend in a direction opposite to the direction in which the drainage lateral branch pipe extends,
Arranged substantially parallel to the drainage lateral branch pipe, and
When viewed from the direction in which the branch pipe body that opens to the inner wall of the large curved pipe and the disposer drain pipe extends, the large curved line covers the upper part of the opening of the joint branch pipe in the large curved pipe. A buttock extending inward of the tube
With
The front end of the flange portion is placed at the same position as the end of the bottom of the branch pipe body in a plan view from the extending direction of the drain pipe for the disposer, or more than the end of the pipe bottom of the branch pipe body. Extended to the inside of the large curved pipe,
A drainage pipe structure for allowing drainage from the disposer and household equipment other than the disposer to flow into the drainage horizontal branch pipe. In the drain pipe structure according to claim 1,
The joint branch pipe is a drain pipe structure provided such that the bottom of the connecting portion with the large curved pipe is positioned higher than the top of the drain horizontal branch pipe. In the drainage pipe structure according to claim 1 or 2,
The large curved pipe is connected to the large curved pipe main body and the large curved pipe main body, and is used for connecting the drain pipe for the disposer having an inner diameter larger than an inner diameter of the large curved pipe main body and substantially the same as an outer diameter of the drain pipe for the disposer. A drain pipe structure in which the joint branch pipe is connected to an end of the large curved pipe main body on the opening side . It is a large joint for connecting a drain pipe for a disposer connected to a disposer and a drain pipe for living equipment extending from living equipment other than the disposer to a drainage horizontal branch pipe,
A large curved pipe connecting the drain pipe for the disposer and the horizontal drain pipe;
A joint branch pipe connected to the curved portion of the large curved pipe and connected to the drainage pipe for living equipment;
With
The bottom of the joint branch pipe is
In the connecting portion where the curved portion and the joint branch pipe are connected, it is provided so as to be located closer to the drain pipe side end of the large curved pipe than the pipe center of the horizontal drain pipe.
The joint branch pipe is
Arranged to extend in a direction opposite to the direction in which the drainage lateral branch pipe extends,
Arranged substantially parallel to the drainage lateral branch pipe, and
When viewed from the direction in which the branch pipe body that opens to the inner wall of the large curved pipe and the disposer drain pipe extends, the large curved line covers the upper part of the opening of the joint branch pipe in the large curved pipe. A buttock extending inward of the tube
With
The tip of the buttocks
In a plan view from the extending direction of the drain pipe for the disposer, it is placed with the end of the pipe bottom of the branch pipe main body, or extends to the inside of the large curved pipe from the end of the pipe bottom of the branch pipe main body. The
Large curved joint.

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