JP3167565B2 - Kitchen stand drain branch pipe - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a dishwasher and the like incorporated in a kitchen stand, such as an existing system kitchen, a sink, a washbasin, etc. To a drainage branch pipe for connecting a drainage hose of a device of the present invention.

[0002]

2. Description of the Related Art Conventionally, in an apartment house, a rigid polyvinyl chloride connecting pipe (for example, JIS standard V40) is provided between a drain trap of a sink of a kitchen stand such as a sink and a drain pipe of a house existing below the sink. Hard vinyl chloride pipes) to form drains from kitchen sinks.

[0003] In the case where a dishwasher or the like is installed in a kitchen table as described above and used, the connection pipe is disconnected from the outlet pipe of the drain trap by cutting the connection pipe or the like. In the meantime, a drain branch pipe was installed, and a drain hose of a dishwasher was connected to the drain branch pipe.

[0004] The structure of the drain branch pipe installed between the drain trap and the connection pipe made of hard vinyl chloride as described above is disclosed, for example, in Japanese Patent Laid-Open No. 6-299579 (A47L1).
5/42). That is, the pipe main body connecting the drain trap and the connection pipe has the same outer diameter as the connection pipe, and a branch pipe connected to the drain hose of the dishwasher is formed in a branch from the middle thereof. The end (upper end) of the pipe body on the drain trap side is inserted and connected inside the outlet pipe of the drain trap, while the end (lower end) of the pipe body on the connecting pipe side is commercially available. Is connected to the connecting pipe via a pipe joint made of hard vinyl chloride.

[0005]

However, in the above-mentioned drainage branch pipe, the end (lower end) of the pipe body on the connecting pipe side is connected to the connecting pipe via a pipe joint. The joint between the connection pipe side end of the pipe main body and the connection pipe becomes long.

[0006] For this reason, in particular, in the case where the back drawing pipe using the back drawing pipe as shown in FIG. 4 is made, the distance between the drain trap and the drain pipe on the house side (back drawing pipe) becomes short. In addition, there is a possibility that a problem that a drain branch pipe cannot be installed may occur.

[0007] The present invention relates to a drainage branch pipe for a kitchen stand, and solves such a problem.

[0008]

SUMMARY OF THE INVENTION The present invention relates to an outlet pipe of a drain trap of a sink for connecting a drain hose of a device such as a dishwasher and the like incorporated in a kitchen table to a drain of a sink of the kitchen table. disconnect and the connection tube rather guide to the drain pipe of the waste water is existing sink below house from the inside end fitted which is connected to the sink of the outlet tube,
A drain branch pipe installed between the outlet pipe and the connection pipe, and a branch pipe branched from the pipe main body and connected to a drain hose of the device; Is the upper side and has the outer diameter of the connecting pipe.
Comprises a cylindrical drainage inlet with the same outer diameter and a lower side
And the inner diameter of the connection pipe is smaller than that of the drainage introduction section.
It consists of a tubular drainage outlet portion having the same outer diameter as the previous
The upper end of the drain introduction section is inserted and connected to the inside of the outlet pipe, and the lower end of the drain outlet is inserted and connected to the inside of the connection pipe.
Is characterized by being branched from the drainage outlet .

[0009]

[0010]

[0011]

[Action] pipe drainage outlet portion of the lower side of the body, a smaller diameter than the drainage inlet portion of the upper squeezing diameter, has an outer diameter equivalent to the inner diameter of the connecting tube, the lower end portion of the drain lead-out portion is connected pipe since connected is fitted to the inside, the connection can not be used fittings, it can be shortened junction between the connecting tube and the tubular body.

[0012] Moreover, when fitted into the upper end of the connecting tube to the inside of the lower end portion of the drainage outlet portion, the upper end face of the connecting tube can stepped portion drainage channel, it has been carried by the waste water therein there is a risk that debris and debris such as Zan'na accumulates, but here, exhaust
Since the lower end of the water outlet is fitted inside the upper end of the connecting pipe, no step is formed in the drainage channel due to the upper end surface of the connecting pipe, and debris and scum do not accumulate.

Further, when the diameter of the lower side (drain outlet) of the pipe body is reduced to be smaller than that of the upper side (drain introduction section) , if the branch pipe is formed in the drain introduction section , the drainage from the sink is reduced in diameter. When the flow becomes difficult to flow in the narrowed portion, the water flows backward and flows easily to the device side through the branch pipe. However, in this case, since the branch pipe is formed in the drain outlet of the pipe main body, backflow does not easily occur, and there is no inflow to the device side.

[0014]

[0015]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described with reference to the drawings.

FIG. 1 is a perspective view of a sink incorporating a device requiring drainage. 1 is a sink main body, and 2 is a sink formed on the top plate portion of the sink main body 1 for washing foods and dishes. Reference numeral 3 denotes a dishwasher, which is a device that requires drainage and is incorporated in the sink main body 1. Reference numeral 4 denotes a drain trap for discharging sewage from the sink 2, which is provided on the bottom wall of the sink 2.

Reference numeral 5 denotes a drain branch pipe according to an embodiment of the present invention, which is connected to the drain trap 4 and combines and discharges drain water from the sink 2 and drain water from the dishwasher 3. The lower end of the branch pipe 5 is connected to a connection pipe 6 made of hard vinyl chloride (JIS standard V40). The connection pipe 6 is a drain pipe on the house side. It is connected to a back extraction pipe 7 introduced into the main body through an elbow type pipe joint 8. A drain hose 9 leads out the drain water discharged from the dishwasher 3 and is connected to the drain branch pipe 5.

FIG. 2 is a sectional view of a main part showing details of the drain branch pipe 5, and FIG. 3 is a sectional view taken along line AA of FIG.

The drain trap 4 includes a storage section 11 for storing a garbage basket 10, the sink 2 and the drain branch pipe 5.
And a trap portion 12 that seals the space between the two with water. The garbage basket 10 collects garbage in the wastewater discharged from the sink 2.

The connecting pipe 6 has an outer diameter equal to the inner diameter of the filling portion 8a of the pipe joint 8 and the inner diameter of the outlet pipe 13 of the drain trap 4, and the lower end is fitted into the pipe joint 8. The upper end is connected to the drain trap 4 by a cap nut (described later) when the drain branch pipe 5 is not installed. When the drainage branch pipe 5 is connected, the connection pipe 6 is disconnected from the drainage trap 4 by loosening the cap nut while the upper part of the pipe joint 8 is cut off, and the connection pipe 6 is cut off. Is removed.

The drain branch pipe 5 is connected to the drain trap 4.
A pipe main body 14 connecting the outlet pipe 13 to the connection pipe 6;
A branch pipe 15 branched from the pipe main body 14 and connected to the drain hose 9 of the dishwasher 3 is provided. The drain branch pipe 5 is made of hard vinyl chloride, and integrally forms the pipe main body 14 and the branch pipe 15.

Further, the pipe main body 14 includes a tubular drainage introduction section 16 which forms the upper side of the pipe main body 14 and a pipe main body 14.
And a cylindrical drainage lead-out portion 17 having a smaller diameter than the drainage introduction portion 16. The drainage introduction part 16 has an outer diameter equivalent to the outer diameter of the connection pipe 6, that is, an outer diameter equivalent to the inner diameter of the outlet pipe 13, and the drainage lead-out part 17 is equivalent to the inner diameter of the connection pipe 6. Having an outer diameter of

The upper end of the pipe main body 14 is fitted inside the outlet pipe 13 and fixed with the cap nut 18, and the lower end is fitted inside the connecting pipe 6 with an adhesive. It is adhesively fixed using, for example. An annular packing 19 is interposed between the outlet pipe 13 and the cap nut 18 to prevent water from leaking from between the pipe body 14 and the outlet pipe 13. In addition, the drainage lead-out portion 17 is formed with an annular rib 20 as a stopper that regulates the amount of fitting of the lower end of the pipe main body 14 into the connection pipe 6. The outer diameter of the portion to be fitted into the connection pipe 6 is tapered.

The branch pipe 15 is formed so as to branch off from a position above the rib 20 in the drainage lead-out portion 16 at the lower side of the pipe main body 14. The drain hose 9 of the dishwasher 3 is attached to the distal end of the branch pipe 15 by a hose cap nut 21. Also,
Above the entrance to the branch pipe 15 of the pipe main body 14, an eave portion 22 is formed from the inner wall of the pipe body 14, thereby preventing sewage from the drain trap 4 from flowing into the branch pipe 15.

As described above, according to the configuration of the drain branch pipe 5 according to the embodiment of the present invention, the drain lead-out portion 17 (lower side) of the pipe main body 14 is provided.
Reduces the diameter to make its outer diameter equal to the inner diameter of the connecting pipe 6,
Since the lower end of the pipe body 14 is inserted into the inside of the connection pipe 6 to be connected, the connection can be made without using a pipe joint, and the joint between the lower end of the pipe body 14 and the connection pipe 6 is shortened. it can.

Therefore, the space for installing the drain branch pipe 5 can be reduced, and the drain branch pipe 5 can be installed even if the distance between the drain trap 4 of the sink 1 and the drain pipe (back extraction pipe 7) on the house side is short. .

In addition, when the upper end of the connecting pipe 6 is fitted inside the lower end of the pipe main body 14, a step is formed in the drainage channel by the upper end face of the connecting pipe 6, and the garbage basket 10 is formed there. There is a possibility that debris and debris such as garbage, which have been carried by drainage, cannot be collected at this time, but here, the lower end of the pipe main body 14 is fitted inside the upper end of the connection pipe 6, No step is formed in the drainage channel from the sink 2 due to the upper end surface of the connection pipe 6, and debris and scum do not accumulate.

Therefore, it is possible to prevent the occurrence of defective drainage due to clogging of the drainage channel. Further, when the diameter of the lower side of the pipe body 14 is reduced to be smaller than that of the upper side, the branch pipe 1
When the drain pipe 5 is formed on the upper side, the drainage from the sink 2 becomes difficult to flow at the narrowed portion, so that the drain water flows backward and the branch pipe 1
5, it becomes easy to flow into the dishwasher 3 side.
However, here, since the branch pipe 15 is formed on the lower side of the pipe main body 14, backflow is unlikely to occur, and there is no inflow to the dishwasher 3 side.

Accordingly, it is possible to prevent the inside of the dishwasher / dryer 3 from being contaminated by sewage from the sink 3.

Further, since the outer diameter of the lower end of the pipe main body 14 fitted inside the connecting pipe 6 is tapered, even if there is some variation in the inner diameter of the connecting pipe 6, the connection can be surely made, and installation is possible. It will be easier.

[0031]

According to the configuration of the kitchen table drainage branch pipe of the present invention, the waste water outlet portion of the lower side of the tube body is made equal to the inner diameter of the outer diameter connecting pipe squeezing diameter drainage outlet portion since the lower end portion of the to be connected is fitted on the inside of the connection pipe, connecting can without using the pipe joint, it can be shortened junction between the connecting tube and the tubular body.

Therefore, the space for installing the drain branch pipe can be reduced, and the drain branch pipe can be installed even if the distance between the drain trap on the kitchen stand and the drain pipe on the house side is short.

[0033] Moreover, when fitted into the upper end of the connecting tube to the inside of the lower end portion of the drainage outlet portion, the upper end face of the connecting tube can stepped portion drainage channel, it has been carried by the waste water therein there is a risk that debris and debris such as Zan'na accumulates, but here, exhaust
Since the lower end of the water outlet is fitted inside the upper end of the connecting pipe, a step due to the upper end surface of the connecting pipe cannot be formed in the drainage passage from the sink, and debris and debris do not accumulate.

Therefore, it is possible to prevent the occurrence of poor drainage due to clogging of the drainage channel. In addition, the lower side of the pipe body
If the diameter of the (drain discharge section) is narrowed to make it smaller than the upper side (drain introduction section) , if the branch pipe is formed in the drain introduction section , the drain from the sink becomes difficult to flow in the narrow section. It flows backward and flows easily to the device side through the branch pipe. However, in this case, since the branch pipe is formed in the drain outlet of the pipe main body, backflow does not easily occur, and there is no inflow to the device side.

Therefore, the inside of the dishwasher-dryer can be prevented from being contaminated by sewage from the sink.

[0036]

[Brief description of the drawings]

FIG. 1 is a perspective view of a sink incorporating a device that requires drainage.

FIG. 2 is a sectional view of a main part showing details of a drain branch pipe of a kitchen table according to the embodiment of the present invention.

FIG. 3 is a sectional view taken along line AA of FIG. 2;

FIG. 4 is a perspective view of a sink showing a structure of a drainage channel in a case where a drainage branch pipe is not installed, in which a drainage pipe using a drainage pipe is provided.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Sink (kitchen stand) 2 Sink 3 Dishwasher 4 Drain trap 5 Drain branch pipe 6 Connection pipe 7 Back extraction pipe (Drain pipe) 9 Drain hose 14 Pipe body 15 Branch pipe 16 Drain introduction part (upper side of pipe body) 17 Drain outlet (lower side of pipe body)

Claims (1)

(57) [Claims] 1. An outlet pipe of a drain trap of the sink and an inner end of the outlet pipe for connecting a drain hose of a device such as a dishwasher and the like incorporated in the kitchen table to a drain channel of a sink of the kitchen table. part is connected is fitted separately and connect the tube to the drainage pipe <br/> guide rather of draining is existing sink below house from the sink, waste water branch pipe installed therebetween , a tube body connecting the said connection tube and said outlet tube, branching from the pipe main body is composed of a branch pipe connected to the drain hose of the device, further tube body, said connection constitutes an upper side Equal to the outer diameter of the tube
A cylindrical drainage introduction part having an outer diameter of
The diameter of the connection pipe is smaller than that of the
And an upper end of the drain introduction section is fitted inside the outlet pipe and connected thereto, and a lower end of the drain extraction section is connected to the connection pipe. A drain pipe for a kitchen stand , wherein the branch pipe is branched from the drain outlet section .