JP2002129615A - Drain pipe joint and drain pipe cleaning device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a drain pipe joint suitable for cleaning in a pipe in need of relatively frequent cleaning in disposer drainage spread in recent years. SOLUTION: A cleaning port 16 for cleaning the inside of the pipe is provided in a higher core position than a horizontal branch pipe socket 14 for connecting a horizontal drain branch pipe 15, and on the opposite side around a pipe axis. With this constitution, the contraflow of wash water of high pressure is suppressed, so that frequent cleaning in the pipe can be efficiently performed. This drain pipe joint is thereby suitable for a drain path for disposer drainage.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a drainage pipe joint suitable for draining waste water in a form in which garbage crushed by a garbage disposal machine flows together with kitchen wastewater (disposer drainage).

[0002]

2. Description of the Related Art In recent years, the disposer drainage has been increasing especially in high-rise apartment buildings and the like. In the case of performing the disposer drainage, a drainage path for kitchen drainage is provided with other miscellaneous drainage such as bathroom drainage. It is common practice to flow down a drainage stack through a separate drainage channel. For this reason, as a drainage pipe joint for connecting a horizontal branch pipe for kitchen drainage to a drainage stack pipe, a one-port type having one horizontal branch pipe receiving port is used.

[0003]

In this disposer wastewater, crushed garbage and kitchen wastewater are flown together, but at the stage of actually flowing down the drainpipe, the raw garbage and wastewater are separated. It is known that garbage falls first, and drainage flows down later. For this reason, garbage once adheres to the inner wall of the stack pipe, but is washed away by the drainage that flows down immediately thereafter. in this way,
The conventional drainage path for the disposer drainage also had a certain self-cleaning action, but this has been limited due to long-term use, and in order to maintain the pipe in a clean state more securely, for example, Need to be cleaned regularly.
Conventionally, there has not been provided a drain pipe joint for disposer drain having a cleaning port for cleaning the inside of a pipe. An object of the present invention is to provide a drainage fitting suitable for disposer drainage and having a cleaning opening for cleaning the inside of a pipe.

[0004]

For this reason, the present invention provides a drainage pipe joint having the structure described in each of the above claims. Claim 1
According to the described drain pipe fitting, when the drain pipe fitting is used for a drainage path for disposer drainage, the inside of the pipe can be forcibly cleaned through a cleaning opening, so that the pipe inner wall can be reliably removed for a long period of time. It can be kept clean. Further, since the cleaning port is provided on the upstream side of the horizontal branch pipe receiving port, for example, when the cleaning nozzle is inserted from the cleaning port and cleaning water is sprayed toward the pipe inner wall to clean the pipe inner wall. In addition, it is possible to prevent the cleaning water from being sprayed backward from the cleaning port. This cleaning port is located in front of the horizontal branch pipe drain in the inflow direction of the horizontal branch pipe drain (a part facing the horizontal branch pipe receptacle).
And can be provided laterally to the inflow direction of the horizontal branch pipe drainage.

According to the drainage pipe joint according to the second aspect, the horizontal branch pipe receiving port (inflow port for horizontal branch pipe drainage) is located below the front as viewed from the cleaning port. The pipe can be cleaned easily. According to the drainage pipe joint according to the third aspect, there is no fear that a horizontal branch pipe may be erroneously connected to the cleaning port during pipe construction work (connection error). According to the drainage pipe joint according to the fourth aspect, the reverse injection of the cleaning water from the cleaning port can be more reliably prevented. In this specification, a cleaning port having a pipe axis inclined downward with respect to the downflow direction of the stack drainage is referred to as an inclined pipe axis type cleaning port. On the other hand, a cleaning port having a pipe axis that is substantially perpendicular to the downflow direction of the stack drainage is called a horizontal pipe axis type cleaning port. According to the guide jig of the fifth aspect, when the cleaning port is not located in front of the horizontal branch pipe receiving port (for example, when the cleaning port is located on the side in the inflow direction of the horizontal branch pipe drainage), the cleaning nozzle is moved from the cleaning port. For example, it can be made to enter in the direction of bending into an L-shape toward the lateral branch pipe receiving port, so that the inside of the pipe can be efficiently cleaned in this type of drainage pipe joint. It can be suitably used as a drain pipe joint. According to the drainage pipe joint according to the sixth aspect, it is possible to efficiently clean the inner wall surface of the pipe of the leg joint while preventing reverse injection of the cleaning water from the cleaning port. The joint can be suitably used for the disposer drainage path. According to the drainage pipe joint according to claim 7 or 8, or the drainage pipe cleaning device according to claim 9, a cleaning pipe having a bent shape or a length is appropriately connected to the cleaning pipe connection port, and the cleaning port of the cleaning pipe is connected. The side (the end opposite to the side connected to the cleaning pipe connection port) is separated from a narrow pipe space or a pit by arranging the pipe space or a pit partitioning the drainage fitting, for example. The inside of the drainage pipe joint can be cleaned in a place where the worker can easily perform the cleaning work, and in this regard, the drainage pipe joint can be suitably used as a drainage pipe joint for disposer drainage.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, an embodiment of the present invention will be described with reference to FIGS.
This will be described with reference to FIG. FIG. 1 shows a drainage pipe joint 10 of the present embodiment. The drainage pipe joint 10 includes an upper receptacle 11 for connecting the drainage stack 1 on the upstream side,
It has a lower connecting portion 12 for inserting and connecting to the receiving port 2a of the drainage stack 2 on the downstream side. The drainage stack 2 on the downstream side has a concrete slab C
The concrete slab C is almost aligned with the upper surface of the concrete slab C.
It is fixed to. A trunk 13 is formed between the upper receiving port 11 and the lower connecting part 12. The trunk 13 is provided with a horizontal branch pipe receiving port 14 and a cleaning port 16.
In the case of the present embodiment, the horizontal branch pipe receiving port 14 and the cleaning port 16 are
They are arranged at positions facing each other around the tube axis of the body 13 (180 ° opposite sides, hereinafter referred to as opposite sides). The pipe axis js of the cleaning port 16 is located horizontally. Hereinafter, a cleaning port in which the pipe axis js is positioned horizontally,
It is called a horizontal pipe shaft type cleaning port. A flange portion 14a is formed at the tip of the horizontal branch pipe receiving port 14, and a fixing flange 14b is bolted to the flange portion 14a so as to face the flange portion 14a.
The horizontal branch pipe 15 inserted into the horizontal branch pipe receiving port 14 by being fixed with a nut is connected in a watertight manner.

The horizontal branch pipe receiving port 14 is connected to the drainage pipe joint 10.
Is placed at a position that is as close as possible to the concrete slab C in the state where is constructed. The cleaning port 16 is disposed more upstream than the horizontal branch pipe receiving port 14. That is, the core height of the cleaning port 16 is set to be higher (upstream side) than the core height of the horizontal branch pipe receiving port 14 and thus the core height of the horizontal branch pipe 15. Further, the diameter of the cleaning port 16 is set smaller than that of the horizontal branch pipe receiving port 14, and in this embodiment, the cleaning port 16 is set to a 40 mm size (40 mm inner diameter) to which a lid 17 having a diameter of 40 mm can be attached. On the other hand, the horizontal branch pipe receiving port 14 is a 50 mm horizontal branch pipe capable of connecting a 50 mm horizontal branch pipe.
Set to size. Usually, the sizes of the horizontal branch pipes are 50 mm, 65 mm, and 80 mm. However, by setting the cleaning port 16 to the 40 mm size as described above, there is no risk of connecting the horizontal branch pipes by mistake. In this embodiment, the cleaning port 16 having a smaller diameter than the horizontal branch pipe receiving port 14 is exemplified.
It may be a cleaning port having a larger diameter than that, and in short, by making the diameter of the cleaning port different from the horizontal branch pipe receiving port,
It is possible to prevent a construction error in which the horizontal branch pipe is connected to the cleaning port by mistake. A cleaning nozzle (see FIG. 5) of a cleaning machine for cleaning the inside of the pipe is inserted into the cleaning port 16. High-pressure washing water is jetted from the washing nozzle toward the inner wall surface of the pipe, whereby garbage and the like deposited on the inner wall surface of the pipe are washed away.

As described above, the drainage pipe joint 10 of the present embodiment is
According to this, since the core height of the cleaning port 16 is set higher than the core height of the horizontal branch pipe receiving port 14 (disposed on the upstream side), for example, the cleaning nozzle is inserted from the cleaning port 16. When the cleaning water is sprayed into the pipe, it is possible to prevent the cleaning water from flowing backward and blowing out from the cleaning port 16, and in this respect, as a pipe joint for disposer drainage that requires frequent cleaning of the pipe. It can be suitably used. In addition, since the cleaning port 16 is disposed on the side opposite to the horizontal branch pipe receiving port 14, the cleaning nozzle inserted into the pipe through the cleaning port 16 is connected to the horizontal branch pipe receiving port 14 and the horizontal branch pipe 1.
5 can be easily entered, so that these pipe inner walls can be efficiently cleaned.

Various modifications can be made to the embodiment described above. For example, the connection form of the lateral branch pipe receiving port is exemplified by a flange fixing type by fixing the flange portion 14a and the fixing flange 14b. However, a cylindrical packing is mounted on the inner peripheral side of the horizontal branch pipe receiving port, and the inner peripheral side of the packing is provided. The lateral branch pipe may be inserted into the side and the lateral branch pipe may be connected in a watertight manner (so-called one-touch packing type). It may be a screw-in type that is screwed on the peripheral side to connect, or a cap nut type that connects a horizontal branch pipe by tightening a nut into a horizontal branch pipe receiving port.

FIG. 2 shows the drainage pipe joint 20 having the one-touch packing type lateral branch pipe socket 21 alone. About the same point as the above-mentioned drainage pipe joint 10, the same numerals are used and the explanation is omitted. A cylindrical packing (one-touch packing, not shown) is mounted on the inner peripheral side of the horizontal branch pipe receiving port 21, and a horizontal branch pipe (not shown) is inserted into the inner peripheral side of the packing. The horizontal branch pipe can be watertightly connected to the horizontal branch pipe receiving port simply by inserting it into the inner peripheral side of the packing. A branch guide 22 is provided above the opening on the inner side of the horizontal branch pipe receiving port 21 so as to project inward of the pipe. Since the diversion guide 22 has a “H” shape that inclines right and left in the downflow direction along the inner wall of the pipe, the drainage that has flowed down is divided by the diversion guide 22 right and left above the drainage inlet of the horizontal branch pipe. The branch is carried out, whereby the joining resistance of the horizontal branch pipe drainage can be reduced. Also,
Since the drainage that flows down (stand-up drainage) is branched right and left above the horizontal branch pipe drainage inlet by the branching guide 22, backflow into the horizontal branch pipe receiving port 21 and thus into the horizontal branch pipe is prevented.

Further, the horizontal branch pipe receiving ports 14 and 21 have been exemplified as having a straight pipe shape, but for example, a drain pipe joint 30 shown in FIG.
The horizontal branch pipe receiving port 31 is formed along a spiral shape that turns around the pipe axis of the body 13. This horizontal branch pipe socket 3
According to No. 1, the horizontal branch pipe drainage flowing through the horizontal branch pipe (not shown) does not flow toward the center of the body portion 13 but into the pipe joint, but flows in (inclination) along the pipe inner wall. Therefore, smooth inflow of the lateral branch pipe drainage can be promoted. The same cleaning port 16 as described above is located at a position where the core height is higher than the horizontal branch pipe receiving port 31 of the eccentric type and facing the pipe axis.
This drain pipe joint 30 can also be suitably used for disposer drainage as with the drain pipe joint 10.

Further, in the above-described embodiment, the configuration in which the cleaning port 16 is disposed on the side opposite to the horizontal branch pipe receiving ports 14, 21, 31 has been exemplified. However, for example, as shown in FIGS. The drainage pipe joint 45 may be provided with the cleaning port 41 on the side in the inflow direction of the horizontal branch pipe drainage instead of the side opposite to the pipe receiving port 42. That is, the cleaning port 41 can be disposed at a position 90 ° around the pipe axis of the body 46 with respect to the horizontal branch pipe receiving port 42 (to the side in the inflow direction of the horizontal branch pipe drainage). By using the guide jig 40 having an L-shaped cylindrical shape as shown in FIG. 5, the washing nozzle 43 which has entered the pipe through the cleaning port 41 can be surely inserted into the horizontal branch pipe receiving port 42, and thus the horizontal branch pipe 44. And cleaning can be performed efficiently.

Further, the cleaning ports 16 and 41 have their pipe axes js
Is a horizontal tube axis type that is located horizontally,
For example, as shown in FIG. 6 or FIG. 7, an inclined pipe shaft type cleaning opening in which the pipe axis js is inclined downward with respect to the downflow direction (vertical direction in the drawing) of the stack drainage may be used. In the case of this inclined pipe shaft type cleaning port, the cleaning nozzle 43 is made to enter obliquely downward, so that the reverse injection of the cleaning water can be more reliably prevented. The drainage pipe joint 50 shown in FIG.
An inclined pipe shaft type cleaning port 51 is provided, and the cleaning port 51 is arranged on the side opposite to the horizontal branch pipe receiving port 52. The cleaning port 51 is also arranged upstream of the horizontal branch pipe receiving port 52. The drainage pipe joint 60 shown in FIG.
Similarly, a cleaning port 61 of an inclined tube axis type is provided. However, unlike the cleaning port 51, the cleaning port 61 is disposed on the side of the horizontal branch pipe drainage inflow direction. This cleaning port 61 is also disposed upstream of the horizontal branch pipe receiving port 62.

Next, FIG. 8 shows a so-called leg joint 70 (drain pipe joint). A drain horizontal main pipe 72 is connected to the lower end of the drain main pipe 71 by the leg joint 70. The leg joint 70 is bent substantially in an L-shape, and a side surface on a bent outer peripheral side (a right side surface in FIG. 8).
At the upstream side of the drain horizontal main pipe 72, an inclined pipe axis type cleaning port 73 having a pipe axis js in a direction inclined downward with respect to the downflow direction of the standing pipe drain is provided. This cleaning port 7
By inserting the washing nozzle 43 into the leg joint 70 through 3, the inner wall of the pipe can be washed with high pressure,
In this respect, it can be suitably used for a disposer drainage path in which garbage is likely to accumulate. FIG. 9 shows a leg joint 75 having an inclined pipe shaft type cleaning port 74 on the inner side surface on the bent side (the left side surface in FIG. It is shown. Further, FIG. 10 shows a leg joint 77 having an inclined tube shaft type cleaning port 76 at a bent side portion (a front side portion in the drawing). With these cleaning ports 74 and 76, the same operation and effect as described above can be obtained.

FIG. 11 shows a drainage pipe joint 80 according to an embodiment of the present invention. The drainage pipe joint 80 is characterized in that a cleaning pipe connection port 81 is provided in place of the cleaning port 16 of the drainage pipe joint 10 exemplified above. However, the horizontal branch pipe receiving port 85 is connected to the drainage pipe joint 1.
In contrast to the horizontal branch pipe port 14 of No. 0, the port is shown as a so-called one-touch packing type port. A description of the same points as in the drainage pipe joint 10 is omitted, and the same reference numerals are used. The cleaning pipe connection port 81 is disposed on the opposite side and upstream side of the horizontal branch pipe receiving port 14. In addition, this cleaning pipe connection port 81
Is formed smaller in diameter than the lateral branch pipe receiving port 14. A cleaning pipe 82 is connected to the cleaning pipe connection port 81. The cleaning pipe 82 is a so-called flexible pipe as shown, one end of which is connected to the cleaning pipe connection port 81, and the other end of the cleaning pipe 83 penetrates the wall 84, and the drain pipe joint 80 is connected to the cleaning pipe 82. It is open to the outside of the pipe space PS to be accommodated. According to the cleaning pipe 82, the cleaning nozzle 43 can be inserted through the cleaning port 83 to clean the inside of the pipe of the drain pipe joint 10 with high pressure, and the operator can clean the inside of the pipe outside the pipe space PS. Especially, it is suitable as a drainage pipe joint of a disposer drainage path that requires frequent cleaning of the inside of the pipe. Note that a general cast iron pipe or a PVC pipe may be used instead of a flexible pipe as the cleaning pipe.

FIG. 12 shows a leg joint 90 in which a cleaning pipe connection port 91 is provided instead of the cleaning port 73 of the leg joint 70 illustrated in FIG. This leg joint 90 corresponds to an embodiment of the invention described in claim 8. The cleaning pipe connection port 91 of the leg joint 90 also has a flexible cleaning pipe 9.
2 are connected at one end. The other end of the cleaning pipe 92 penetrates through the concrete slab C and is opened to the upper floor. The opening 93 opened on the upper floor side is closed by a removable lid. With this cleaning tube 92,
Remove the lid and open the cleaning nozzle 43 from the opening 93 (see FIG. 5).
, The inside of the leg joint 90 and the drain horizontal main pipe 72 can be washed with high pressure, and the operator can use the leg joint 90 outside the pit P (for example, on the upper floor sectioned by the concrete slab C). Can be cleaned. Therefore, similarly to the above, the leg joint 90 can be suitably used as a joint for disposer drainage. In particular, generally, the leg joint is provided in a pit P below the slab (under the floor) that divides the lowest part of the building, and is installed in a very small space therein. For this reason, it has been difficult to clean the leg joint in the related art. However, by using the cleaning pipe 92, the inside of the leg joint 90 and the drain horizontal main pipe 72 is extremely easily cleaned at a place away from the pit P. be able to.

The drainage pipe joint according to the present invention is not limited to disposer drainage, but can be applied to a general drainage path to efficiently clean the inside of a drainage horizontal branch pipe, a drainage stack pipe and a drainage horizontal main pipe system. Can be. In addition, in the drainage pipe joints 80 and 90 shown in FIG. 11 or FIG. 12, the configuration including the cleaning pipe connection ports 81 and 91 and the cleaning pipes 82 and 92 can be regarded as drainage pipe cleaning devices 100 and 101. These drain pipe cleaning devices 100 and 101 are one embodiment of the invention described in claim 9, and can be applied to various types of drain pipe joints or drain pipes. That is, in addition to the configuration provided in the drain pipe joint, the cleaning pipe connection port,
A drain pipe connected to the drain pipe joint may be provided. Also,
There are various forms of drainage pipe joints to which the drainage pipe cleaning device can be applied, and a drainage pipe joint having a plurality of horizontal branch pipe connection ports,
It can be widely applied to leg joints, T-shaped joints, straight pipe-shaped joints, and even cast iron pipes or PVC pipes. With this drain pipe cleaning device, even when it is difficult for an operator to access the drain pipe joint or the drain pipe, they can be cleaned extremely easily from a remote place. When applied, an extremely large effect can be obtained.

[Brief description of the drawings]

FIG. 1 is a side view showing an example of a pipe construction using a drainage pipe joint according to an embodiment of the present invention.

FIG. 2 is a longitudinal sectional view of a drainage pipe joint provided with another form of a horizontal branch pipe port.

FIG. 3 is a cross-sectional view of a drainage pipe joint provided with another form of a horizontal branch pipe receiving port.

FIG. 4 is a side view of a drainage pipe joint provided with another type of cleaning port. The cleaning port shown in this figure is a horizontal pipe shaft type cleaning port, and is provided on the side of the inflow port for drainage of the horizontal branch pipe.

FIG. 5 is a cross-sectional view of a drain pipe joint using a guide jig for a drain pipe cleaning nozzle.

FIG. 6 is a side view of a drainage pipe joint provided with another type of cleaning port. The cleaning port shown in this figure is an inclined pipe axis type cleaning port, and is provided in front of the inflow port of the horizontal branch pipe drainage.

FIG. 7 is a side view of a drain pipe joint provided with another type of cleaning port. The cleaning port shown in this figure is an inclined pipe axis type cleaning port, and is provided on the side of the inflow port of the horizontal branch pipe drainage.

FIG. 8 is a side view showing a state in which a drain horizontal main pipe is connected to a drain vertical pipe via a leg joint having a cleaning port.

FIG. 9 is a side view of a leg joint provided with another type of cleaning port.

FIG. 10 is a side view of a leg joint having a cleaning port according to still another embodiment.

FIG. 11 is a side view of a piping construction example using a drain pipe joint according to an embodiment of the present invention, and a side view of a drain pipe joint provided with the drain pipe cleaning device according to claim 9; .

FIG. 12 is a side view of a piping installation example using the leg joint according to the embodiment of the invention described in claim 8, and a side view of the leg joint provided with the drainpipe cleaning device according to claim 9; .

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Drainage stack (upstream side) 2 ... Drainage stack (downstream side), 2a ... Reception port 10 ... Drainage pipe joint 11 ... Upper receptacle 12 ... Lower connection part 13 ... Body part 14 ... Horizontal branch pipe receptacle 15 ... Horizontal branch Pipe 16: Cleaning port (horizontal pipe shaft type) 21: Horizontal branch pipe receiving port (one-touch type) 31 ... Horizontal branch pipe receiving port (eccentric type) 40: Guide jig 41: Cleaning port (horizontal pipe shaft type) 43: Cleaning Nozzles 51, 61: Cleaning port (inclined pipe axis type) 70: Leg joint js: Cleaning port pipe axis 81, 91: Cleaning pipe connection port 82, 92: Cleaning pipe 100, 101: Drain pipe cleaning device

Claims (9)

[Claims] A drain pipe joint for connecting a drain horizontal branch pipe to a drain stack pipe, wherein a cleaning port for cleaning the inside of the pipe upstream of a horizontal branch pipe receiving port for connecting the drain horizontal branch pipe. Drainage pipe fitting with. 2. The drainage pipe coupling according to claim 1, further comprising one horizontal branch pipe receiving port, and a cleaning port provided in front of a horizontal branch pipe drain flowing in through the horizontal branch pipe receiving port in the inflow direction. Drainage fittings. 3. The drainage pipe joint according to claim 1, wherein the diameter of the cleaning port is different from the diameter of the horizontal branch pipe receiving port. 4. The drainage pipe joint according to claim 1, further comprising a cleaning port having a pipe axis inclined downward with respect to the downflow direction of the drainage of the standing pipe. 5. A guide jig for a washing nozzle used for a drainage pipe joint according to claim 1, wherein the jig has a cylindrical shape having a diameter allowing insertion of the washing nozzle, and is provided between the cleaning port and the horizontal branch pipe receiving port. A guide jig having a bent shape that is oriented. 6. A drain joint for connecting a drain horizontal main pipe to a drain stand main pipe, wherein the drain pipe joint has a cleaning port on an upstream side of a bent portion. 7. A drainage pipe joint for connecting a drainage horizontal branch pipe to a drainage stack pipe, the drainage pipe joint having a cleaning pipe connection port for connecting a cleaning pipe for cleaning the inside of the pipe. 8. A drain joint for connecting a drain stand main pipe to a drain horizontal main pipe, the drain joint having a cleaning pipe connection port for connecting a cleaning pipe for cleaning the inside of the pipe. 9. A cleaning device for cleaning a drainage pipe joint and / or a drainage pipe connected to the drainage pipe coupling, wherein a cleaning pipe is provided at the drainage pipe joint or a cleaning pipe connection port provided at the drainage pipe. Drain pipe cleaning device connected.