WO2014017387A1

WO2014017387A1 - Water supply and drainage apparatus

Info

Publication number: WO2014017387A1
Application number: PCT/JP2013/069597
Authority: WO
Inventors: 水野　智之; 康秀工藤; 康裕白井
Original assignee: 株式会社Ｌｉｘｉｌ
Priority date: 2012-07-24
Filing date: 2013-07-19
Publication date: 2014-01-30
Also published as: JP5927612B2; JP2014025207A

Abstract

This water supply and drainage apparatus supplies water from a water faucet spout, which is connected to a water supply pipe, to the inside of a water-receiving tank, and drains the water received by the water-receiving tank to a drainage pipe from a drain outlet of a drainage recess that is recessed downward from the bottom of the water-receiving tank. The water supply and drainage apparatus is characterized in that rotary blades that rotate around a rotation axis are disposed inside the drainage recess, and the force of flow in a water supply channel from the water supply pipe to the spout acts as a driving force that rotationally drives the rotary blades; and a washing water flow that washes the inside of the recess is generated as a result of the rotational force of the rotary blades acting on drainage water inside the drainage recess.

Description

Water supply / drainage equipment

The present invention relates to a water supply / drainage device suitable for application to a sink or the like equipped with a sink.
This application claims priority based on Japanese Patent Application No. 2012-163984 for which it applied to Japan on July 24, 2012, and uses the content here.

Usually, the sink (water receiving tank) of the sink is provided with a drainage bowl (a recess for drainage) that is recessed from the bottom, and water is discharged from the outlet of the faucet (sink faucet) provided in the sink. Water supply) flows from the sink into the drainage bowl, and is further drained from a drainage opening provided at the bottom of the drainage bowl to the drainage pipe.
In addition, the waste bowl generally contains a garbage bowl for containing garbage.

On the inner surface of the concave portion for drainage such as the drainage bowl, there is a tendency that fungi that have taken up nutrients, dead bodies thereof, metabolites thereof, and the like are accumulated, resulting in slime.
Such a state where dirt such as slime and other oils adheres is unhygienic and causes a bad odor.
The sink of the sink may also be provided with a drain recess that forms a drain trap in a form recessed from the bottom. Even in this case, there is a problem that dirt adheres to and accumulates on the inner surface of the drain recess. .

Conventionally, various devices for cleaning such drainage recesses have been proposed.
For example, the following Patent Document 1 discloses an idea about a “sink drain trap”, in which a spray nozzle (5) is attached to a cylinder (3a) that accommodates a net cage (9) for containing garbage, When the user presses the operating button of the switching device (7b) provided in the cabinet of the sink connected to the hot water supply pipe (1b), the electromagnetic valve (7a) is opened to inject hot water from the spray nozzle (5), It is disclosed that a strong swirling flow of hot water is formed in the cylinder (3a) to clean and eliminate filth.

Further, in Patent Document 2 below, a plurality of cleaning nozzles (7) communicating with a water supply source are arranged obliquely downward in the vicinity of a drain trap (3) in a drainage device main body (1) that constitutes a drain recess. It is disclosed that water from the water supply branch pipe (13) is jetted from the nozzle (7) to generate a vortex in the sealed water, thereby removing dirt in the sealed water portion (6). Yes.

However, these conventional devices discharge water only for cleaning, and the user has to perform a special operation for that purpose. Since the clean water discharged for cleaning is drained as it is, if the frequency of cleaning is high, the amount of water used is large, and there is a problem in today where water saving is screamed.

Japanese National Utility Model Publication No. 1-156274 Japanese National Utility Model Publication No. 6-49568

The present invention provides a water supply / drainage device that can effectively save water and can eliminate the need for a user for cleaning the drainage recesses to perform a special operation against the background described above. It was made for the purpose.

One aspect of the present invention is to supply water into a water receiving tank from a water outlet of a faucet connected to a water supply pipe, and from the drain outlet of a concave part for draining in a form recessed downward from the bottom of the water receiving tank. A water supply / drainage device for draining water received in a water receiving tank into a drainage pipe, wherein a rotary blade rotating around a rotation axis is provided inside the drainage recess, and a water supply channel from the water supply pipe to the water discharge port The water supply / drainage device that drives the rotary blade to rotate using the flow force of the water as a driving force, and generates a cleaning water flow for cleaning the inside of the recess by applying the rotational force of the rotary blade to the drainage in the drainage recess It is.

In the water supply / drainage device, the drain port is provided at the bottom of the drain recess, and the rotary blade has the rotation axis extending vertically inside the drain port and at least the upper end of the bottom of the drain recess. You may arrange | position in the position higher than the edge around this drain outlet.

In the water supply / drainage device, the water supply passage is provided with a water turbine that rotates by the force of the flow of the water supply flow passage, and the water wheel side magnet is provided in an integrally rotating state on the water wheel, and separated from the water wheel side magnet by a partition wall. A blade side magnet that rotates integrally with the rotary blade at a position, magnetically coupling the turbine wheel side and the blade side, and transmitting the driving force from the turbine to the rotary blade to rotate the rotary blade. Good.

In the water supply / drainage device, the rotary blade may be formed in a shape extending linearly in the radial direction with the rotation axis as a center.

In the water supply / drainage device, the drainage recess includes an upper first drainage recess having a drainage port at a bottom, and a lower second drainage recess constituting a drain trap, and the second You may provide the said rotary blade which gives a rotational force to sealing water inside the recessed part for drainage. *

As described above, according to one aspect of the present invention, a rotating blade is provided in the drain recess of the water receiving tank, and the rotating blade is driven to rotate using the force of the flow of the water supply passage from the water supply pipe to the water discharge port as a driving force. Rotating blades act on the drainage that flows into the drainage recess by water discharged from the faucet spout, that is, water supply, thereby generating a cleaning water flow for cleaning the inside of the recess.

In one aspect of the present invention, the rotating blades in the drainage recess are not rotated by the flow of the drainage against themselves, but the force of the flow of the water supply flow path from the water supply pipe to the water discharge port is forcibly used as the driving force. Therefore, a strong washing water flow can be generated in the drain recess, and the drain recess can be effectively cleaned.

In one aspect of the present invention, when water is discharged from the water outlet, the rotary blades rotate to automatically clean the inside of the drain recess.
Therefore, since the user does not need to perform a special operation for cleaning the inside of the drain recess, there is no need for labor for cleaning, and the user is not burdened with cleaning.
That is, in one aspect of the present invention, even if the user is not conscious of cleaning, if the faucet is used, the rotating blades automatically rotate to clean the inside of the drain recess.

Moreover, in one aspect of the present invention, when the water operation is performed using a faucet in a water receiving tank such as a sink, the drainage itself becomes a cleaning water flow to clean the inside of the recess. Compared with the case of discharging water only for cleaning, water is not used only for cleaning, and water can be saved.

In one embodiment of the present invention, it is desirable to provide a plurality of rotating blades, but in some cases, it is possible to provide only one rotating blade.
In addition, a swirl flow or a swirl flow can be generated as a cleaning water flow by the rotation of the rotating blades, but it is also possible to clean the inside of the recess by generating various other cleaning water flows.

In one aspect of the present invention, a drain outlet is provided at the bottom of the drain recess, the rotary blade extends in the vertical direction inside the drain port, and at least the upper end is the bottom of the drain recess around the drain port. It can arrange | position in a position higher than the edge part.

In the above aspect of the present invention, the rotating blades in the drain recess are not rotated by the force of the water flow impinging on the rotating blades as described above, but are driven from the driving force generated in other parts, specifically from the water supply pipe. It is forcibly driven to rotate by the driving force generated by the flow of the water supply passage to the water inlet.
In this case, the rotary blades arranged as described above that rotate by forced drive in the drain recess flow into the drain recess from the bottom of the water receiving tank such as a sink, and further use the bottom of the drain recess as a drain outlet. Acts as a resistor against the flow of waste water flowing in the direction.

In other words, the rotating blades that rotate by forced drive flow down along the peripheral wall of the drain recess, and further contact the drain in the rotation direction against the drain that is about to flow into the drain through the bottom. It acts to impede the flow by resisting the flow toward the mouth, and in addition, the centrifugal force due to its rotation acts on the flow to reverse the flow of water toward the drain, that is, drainage. It pushes back in the direction away from the mouth, and the action causes water to stay around the drainage mouth.
In addition to this, the rotating blades generate a washing water flow such as a vortex flow, specifically a washing water flow for washing the inside of the drainage recessed portion while stirring the retained water by the action of centrifugal force due to its rotation.

The generated cleaning water stream strikes the inner surface of the concave portion for drainage, removes the bacteria before reaching the slime, the nutrients, oil and other dirt attached to the inner surface, and cleans the inner surface.
In addition, when the garbage is stored in the drain recess, the cleaning water flow is also applied to the outer surface including the lower surface of the garbage to clean it.

In the present invention, a water wheel is provided in the water supply channel, and a water wheel side magnet is provided in the water wheel in an integrally rotating state, and a blade side magnet that rotates integrally with the rotary blade is provided at a position separated from the water wheel side magnet by a partition wall, The water wheel side and the rotating blade side can be magnetically coupled, and the driving force from the water wheel can be transmitted to the rotating blade to rotate the rotating blade.

In one embodiment of the present invention, the shape of the rotary blade may be a shape extending linearly in the radial direction with the rotation axis as the center.
Here, the radial direction means a radial direction with respect to a circle around the rotation axis.
If it does in this way, centrifugal force can be effectively exerted with respect to waste water by rotation of a rotary blade, and cleaning water flow, such as a vortex, can be produced effectively.

In the above aspect of the present invention, the rotation of the rotary blades can effectively provide resistance to the flow of water from the bottom of the drainage recess to the drainage port, and the centrifugal force due to the rotation is effective against the drainage. Therefore, the drainage can be pushed back in the direction away from the drainage port to generate stagnant water around the drainage port and to effectively generate a washing water flow with the stagnant water.

In the present invention, the drainage recess has the upper first drainage recess having a drain outlet at the bottom and the lower second drainage recess constituting the drain trap, and the second drainage. A rotary blade for applying a rotational force to the sealed water can be provided in the concave portion for use.
In this way, the inner surface of the second drainage recess can be cleaned by generating a cleaning water flow in the sealed water, and the second drainage recess or drainage pipe of floating matter floating on the upper surface of the seal water. Sticking to can be avoided.

In this case, a rotary blade is also provided in the upper first drain recess, and in the first drain recess, the rotary blade extends in the vertical direction inside the drain port, Disposing at least the upper end at a position higher than the edge around the drainage port on the bottom surface of the drainage recess, and the upper first drainage recess and the lower second drainage recess rotating blade in common The rotary shafts of the first drainage recesses and the second drainage recesses are rotationally driven by a driving force of a water wheel. In addition, the rotary blades of the second drain recess can also have a shape extending linearly in the radial direction around the rotation axis.

It is the figure which showed the sink and peripheral part containing the water supply / drainage apparatus which is one Embodiment of this invention. It is principal part sectional drawing of the water supply / drainage apparatus of FIG. It is sectional drawing which expanded and showed the drainage bowl of FIG. 2, and its peripheral part. It is sectional drawing which expanded and showed the water turbine unit of FIG. 2, and its peripheral part. It is the figure which showed the impeller in the same embodiment. It is the figure which showed the impeller in the same embodiment. It is the figure which showed the impeller in the same embodiment. It is operation | movement explanatory drawing of the embodiment. It is operation | movement explanatory drawing of the embodiment. 6A and 6B are operation explanatory views different from FIGS. It is the figure which showed the principal part of other embodiment of this invention.

Next, embodiments of the present invention will be described in detail with reference to the drawings.
In FIG. 1, reference numeral 10 indicates a sink (water receiving tank) provided in a sink (not shown), and a sink tap (hereinafter simply referred to as a faucet) 12 is provided in the sink 10. The faucet 12 is a single lever type mixing faucet.
The faucet 12 includes a faucet body 14 that rises from the top surface of the sink 10, and a water discharge pipe 16 that extends from the faucet body 14 toward the center of the sink 10. A water discharge port 18 is provided at the tip of the water discharge pipe 16.
The faucet body 14 is provided with a mixing unit for mixing water and hot water.

Reference numeral 20 denotes a lever handle. By operating the lever handle 20, water discharge from the water discharge port 18, water stoppage and water discharge flow rate adjustment, and water discharge temperature adjustment are performed.
A water supply pipe 22 for supplying water and hot water is connected to the water tap 12 (only one water supply pipe 22 is shown in the figure, and the other water supply pipe 22 is not shown).
Reference numeral 24 denotes a pipe that forms a water supply channel that guides water from the mixing portion of the water tap 12 to the water discharge port 18, and a water turbine unit 25 described later is connected to the pipe 24.

Reference numeral 24A denotes an inlet-side pipe for allowing water from the mixing valve to flow into the water turbine unit 25, and reference numeral 24B denotes an outlet-side pipe for guiding the water flowing out from the water turbine unit 25 to the water outlet 18 side. One end of each of the outlet pipe 24 </ b> A and the outlet pipe 24 </ b> B is connected to a turbine housing 26 described later of the turbine unit 25.

In FIG. 2, reference numeral 28 denotes a drainage recess configured to be recessed from the bottom 30 of the sink 10. In this example, the drainage recess 28 includes a drainage bowl 32 that constitutes the upper first drainage recess. And an outer cylinder 36 of a drain trap 34 constituting the lower second drain recess.
The drain bowl 32 has a flange portion 38 projecting radially outwardly at the upper end, and the flange portion 38 is attached to the bottom portion 30 so as to be hooked on the edge of the opening 40 of the bottom portion 30 of the sink 10. It is attached.

Reference numeral 42 indicates a garbage bowl for storing garbage or the like housed in the drain bowl 32. The garbage basket 42 has a frame portion 43 having an L-shaped cross section at the upper end and a ring shape in the circumferential direction. The frame 43 is held inside the drainage bowl 32 so as to be hooked on the annular stepped portion 44 of the drainage bowl 32.
The garbage basket 42 is almost entirely composed of a mesh except for the frame portion 43.

The drain trap 34 has an outer cylinder 36 and an inner cylinder 46 inserted downward from the upper side inside the outer cylinder 36, and the outer cylinder 36 and the inner cylinder 46 hold a sealed water 48 at the lower part. .
The drain trap 34 holds the sealed water 48 to prevent odor backflow from the drain pipe 50 side into the sink 10.

A drainage port (second drainage port) 58 is provided laterally at the upper portion of the outer cylinder 36, and a cylindrical connection pipe 52 projects from the drainage port 58.
An end of the drain pipe 50 is fitted in the connection pipe 52 in an internally fitted state, and the connection pipe 52 and the drain pipe 50 sandwich the flange portion 54 formed in each state in a superposed state. The clip 56 is connected to the removal state.
The inner cylinder 46 has an upper end and a lower end, and the drainage from the sink 10 flows into the inner cylinder 46 from the opening at the upper end of the inner cylinder 46 and flows down from the opening at the lower end. It flows out between the cylinder 46 and the outer cylinder 36, flows out from the lateral drainage port 58 of the outer cylinder 36 to the drain pipe 50, and is discharged outside.

As shown in FIG. 3, the drainage bowl 32 has a circular peripheral wall portion 59 and a bottom portion 60.
An opening is formed at the center of the bottom 60, and the upper end of the inner cylinder 46 is disposed inside the opening.
The opening at the upper end of the inner cylinder 46 becomes a drain outlet 62 in the drain bowl 32, and the drainage in the drain bowl 32 is discharged downward through the drain outlet 62.
A radially inward annular flange portion 64 is provided at the edge of the opening of the drain bowl 32, and the upper end portion of the outer cylinder 36 and the upper end portion of the inner cylinder 46 are opposed to the flange portion 64. It is attached.

Reference numerals

66 and 68 denote attachment members for attaching the upper end portion of the inner cylinder 46 and the upper end portion of the outer cylinder 36 to the flange portion 64 of the drainage bowl 32. The

attachment members

66 and 68 each have a circular ring shape. There is no.
The mounting

members

66, 68 have

flange portions

70, 72. The

flange portions

70, 72 sandwich the flange portion 64 of the drainage bowl 32 from both the upper and lower sides, and the external threads on the outer peripheral surface of the mounting member 66 are attached. The member 68 is fixed to the flange portion 64 of the drainage bowl 32 by screw connection with the internal thread on the inner peripheral surface of the member 68.

After the upper end portion of the inner cylinder 46 is fitted in the fitting state with respect to the mounting member 66, the latching portion 74 at the upper end of the inner cylinder 46 is latched to the stepped portion on the inner surface of the mounting member 66. Thus, the inner cylinder 46 is attached to and held by the flange portion 64 of the drainage bowl 32 via the

attachment members

66 and 68.
The inner cylinder 46 is attached to and held by the attachment member 66 by being inserted downward with respect to the attachment member 66 from the upper side in the drawing.

The outer cylinder 36 is fitted into the cylindrical fitting portion 76 of the mounting member 68 in an upper end portion thereof, and the flange portions 78 provided on the outer cylinder 36 are overlapped with each other by the clip 80. By being sandwiched, the attachment member 68 is attached and held.

An arm 82 extends radially inward from the upper end portion of the inner cylinder 46, and a cylindrical support that rotatably supports a rotation shaft 86 described later at the inner end portion thereof is supported in the radial direction. Part 84 is configured.
As shown in FIG. 2, an arm 82 similarly extends radially inward from the lower end portion of the inner cylinder 46, and a rotary shaft 86 is rotatably fitted at the inner end portion thereof. A cylindrical support portion 84 that supports in the radial direction is configured.

The rotating shaft 86 is disposed at the center position inside the drain outlet 62 and extends in the vertical direction, and the impeller 88 provided in the drain bowl 32 is integrally rotated at its upper end. It is connected.
The specific configuration, arrangement position, and operation of the impeller 88 will be described later.

As shown in FIG. 4, a bottomed cylindrical portion 90 is provided at the lower end of the rotating shaft 86, and a donut-shaped magnet 92 is attached to the cylindrical portion 90.
The magnet 92 is a blade-side magnet that rotates integrally with the impeller 88 described above.
On the upper bottom portion of the cylindrical portion 90, rotary blades 94 extending radially from the rotary shaft 86, that is, linearly extending in the radial direction, are provided in an integrally rotated state.
The rotary blade 94 has a function of giving a rotational force to the sealed water 48 to generate a vortex as a cleaning water flow in the sealed water.

The outer cylinder 36 has an opening 96 at the lower end, and the opening 96 is closed with a cap 98.
The cap 98 is fitted to the cylindrical portion 100 formed around the opening 96 of the outer cylinder 36 in an outer fitting state.
The cap 98 is provided with a cylindrical recess 102, and the lower portion of the cylindrical portion 90 including the magnet 92 is rotatably accommodated in the recess 102.
The cap 98 is provided with a support shaft 104 that protrudes upward at the center thereof, and the rotation shaft 86 is rotatably supported by the support shaft 104.

The above-described water turbine unit 25 is disposed below the cap 98, and the water wheel housing 26 of the water wheel unit 25 is attached to the cap 98 with a clip 106.
Specifically, the water turbine housing 26 is attached to the cap 98 by a clip 106 that sandwiches the flange portions 108 provided on the cap 98 and the water turbine housing 26 in an overlapped state.

A water wheel 110 is rotatably accommodated in the water wheel housing 26.
The water wheel 110 has blades 112 on the outer periphery. The main body 114 is provided with a magnet 116 having a donut shape.
The magnet 116 serves as a turbine-side magnet, and the magnet 92 that serves as the blade-side magnet with respect to the magnet 116 has the turbine housing 26 that forms a part of the water supply channel, and the cap 98 as a partition. It arrange | positions inside the magnet 116 and the magnet 92 and the magnet 116 are arrange | positioned so as to oppose a radial direction.

That is, the water wheel 110 and the rotating shaft 86, that is, the impeller 88 are magnetically coupled by the

magnets

116 and 92. Due to the magnetic coupling, the rotational force of the water wheel 110 is transmitted to the impeller 88 in the drainage bowl 32 through the rotating shaft 86, and the impeller 88 rotates in the drainage bowl 32 together with the water wheel 110.
That is, the impeller 88 is forcibly rotated in the drain bowl 32 by using the force of the flow of the water supply passage from the mixing portion of the faucet 12 to the spout 18 as a driving force.
The water turbine 110 has a rotating shaft 120 that protrudes in the vertical direction from the bottom portion 118, and a lower end portion and an upper end portion of the rotating shaft 120 can be rotated by bearing

portions

122 and 124 provided in the water turbine housing 26. It is supported by.

The water turbine housing 26 is provided with an inlet 126 and an outlet 128, and water from the inlet side pipe 24 </ b> A shown in FIG. 1 flows into the turbine housing 26 from the inlet 126 and flows therethrough. Is applied to the blades 112 of the water wheel 110 in a direction in which the water wheel 110 is rotated in a certain direction, and is rotated.
Water that has passed through the water wheel 110 flows out from the outlet 128.
The water that has flowed out is led to the water outlet 18 of the faucet 12 through the outlet side pipe 24 </ b> B, and is discharged from the water outlet 18 into the sink 10. That is, water is supplied into the sink 10 as water from the faucet 12.

As shown in FIGS. 5A, 5B, and 5C, the impeller 88 disposed inside the drain bowl 32 has a hub 130 at the center and a circular donut-shaped plate portion 132 at the outer periphery. An opening 134 is formed between them.
The hub 130 at the center and the plate-like portion 132 at the outer periphery are connected by an arm 136.

As shown in FIG. 5B, the outer peripheral plate-like portion 132 has a shape inclined upward from the center side toward the outer peripheral side. On the lower side of the plate-like portion 132, a plurality of rotary blades 138 having a triangular side surface shape and a front shape are provided at regular intervals along the circumferential direction.
The rotary blade 138 has a shape extending linearly from the center side of the impeller 88 in the radial direction, that is, in the radial direction.
The root portion on the inner peripheral side of the plate-like portion 132 is configured to be thicker than the other portion of the plate-like portion 132 over the entire circumference, and the thick portion 140 is an arm 136 as shown in FIG. 5C. And projecting downward.

The hub 130 protrudes further downward than these thick portions 140.
As shown in FIG. 5B, the hub 130 is provided with a fitting hole 142 that opens downward, and the upper end of the rotary shaft 86 is press-fitted into the hub 130, and the impeller 88 is connected to the rotary shaft. 86 and rotate together.

As shown in FIGS. 2 and 3, the impeller 88 is disposed at a position directly above the drain outlet 62 in the drain bowl 32, and each of the plurality of rotary blades 138 provided in the impeller 88 is drained. The upper surface (bottom surface) of the bottom portion 60 in the bowl 32, specifically, the bottom surface 60 is disposed at a position generally higher than the edge portion 60 a around the drain outlet 62.

In this embodiment, when the user operates the lever handle 20 of the faucet 12 to discharge water from the water outlet 18 and perform water work, the water discharged from the water outlet 18, that is, the supplied water is received by the sink 10. Then, the water is drained from the bottom 30 of the sink 10 into the drain bowl 32 as shown in FIGS. 6A and 6B.

At this time, the water (drainage) flowing through the bottom 30 of the sink 10 flows down along the inner surface of the peripheral wall 59 of the drainage bowl 32 and reaches the bottom 60 of the drainage bowl 32.
The drainage that has reached the bottom portion 60 flows toward the drainage port 62 along the bottom portion 60, and the flow tries to flow in the centripetal direction from the entire circumference around the drainage port 62 toward the drainage port 62 (in that case). In addition, since the flow of drainage is a centripetal flow from the entire circumference around the drainage port 62 toward the drainage port 62, the flow does not work as a force for rotating the impeller 88, that is, the rotary blade 138 in one specific direction. ).

At this time, the impeller 88 in the drainage bowl 32 has already been forcibly rotated by using the force of the flow of the water supply passage in the pipe 24 as a driving force.
Therefore, when the drainage in the drainage bowl 32 is about to flow into the drainage port 62 along the bottom portion 60, the rotating blade 138 of the impeller 88 that rotates by force driving hits the rotation direction against the flow of the drainage. , It becomes the resistance of the flow of the waste water toward the drain port 62 and suppresses the inflow to the drain port 62.

The rotating blade 138 not only acts as a resistance to the flow, but also causes the centrifugal force due to its rotation to act on the flow of the drainage so that the drainage moves away from the drain port 62 as shown in FIGS. 6A and 6B. By pushing back, the drainage is retained around the drainage port 62 by the action.
Not only the rotating blade 138 applies a centrifugal force to the staying water, but also generates a washing water flow such as a vortex while stirring.

The generated cleaning water stream strikes the inner surface of the drain bowl 32, removes the bacteria before reaching the slime, the nutrients, oils and other dirt attached to the inner surface, and cleans the inner surface of the drain bowl 32.
The cleaning water flow generated at the same time hits the outer surface of the garbage basket 42, mainly the lower surface thereof, and removes the dirt adhering to the outer surface of the garbage basket 42 to perform a cleaning action.

A part of the washed water then flows into the drain trap 34 through the drain port 62 while the impeller 88 continues to rotate, or the entire water trap from the drain port 62 by stopping the water supply from the faucet 12. 34, and then flows into the drain pipe 50 from the lateral drainage port 58 and is discharged to the outside through the drain pipe 50.

If the amount of pushing back the drainage by the rotary blade 138 becomes excessive, the pushed back drainage may overflow from the drainage bowl 32 to the bottom 30 side of the sink 10, but in this embodiment, the accumulated water becomes excessive. In some cases, the excessive stagnant water can flow into the drain outlet 62 through the opening 134 of the impeller 88, so that excessive stagnant water is generated around the impeller 88 and the drainage is sinked by the action of centrifugal force by the impeller 88. The phenomenon of overflowing to the bottom 30 side of 10 can be prevented satisfactorily.

In the present embodiment, as the rotary shaft 86 rotates, the rotary blade 94 provided at the bottom of the drain trap 34 rotates to cause the rotational force to act on the sealed water 48, thereby cleaning the sealed water 48 for eddy currents and the like. A water flow is generated to clean the inner surface of the outer cylinder 36, the outer surface of the inner cylinder 46, and the like.
At this time, since the sealed water 48 generates a swirling flow around the inner cylinder 46, the oil and other floating substances floating on the upper surface of the sealed water 48 get over the weir 58 a forming the drain port 58 and drain the pipe. 50 is smoothly discharged.

At that time, if the central axis of the drainage channel 144 shown in FIG. 7 is oriented at right angles to the peripheral wall of the outer cylinder 36 in the drainage trap 34, the drainage port out of the floating matter floating on the upper surface of the sealed water 48. Floating matter on the side close to 58 is relatively likely to flow out from the drain port 58 into the drain pipe 50, that is, into the drainage channel 144, but floats on the sealed water 48 at a position 180 ° apart in the circumferential direction. It is difficult for the object to move around the inner cylinder 46 to the position of the drainage port 58, and therefore it is difficult to smoothly flow out into the drainage channel 144 through the drainage port 58. In this embodiment, as shown in FIG. Since the drainage channel 144 is provided so that the central axis of 144 obliquely intersects the peripheral wall of the outer cylinder 36, the connecting portion between the inner surface of the drainage channel 144 and the inner surface of the outer cylinder 36 is more specifically the inner surface of the outer cylinder 36. Because it extends in the tangential direction or a direction close to this Floating matter at a position 180 ° apart from the drain port 58 in the circumferential direction can also be well guided to the drain port 58 and flow out from the drain port 58 through the drain channel 144, and the outer cylinder 34 and the drain pipe 50. It can avoid the sticking of the float to.

As described above, in this embodiment, when water is discharged from the water discharge port 18, the rotary blade 138 rotates and the inside of the drain bowl 32 is automatically cleaned.
Accordingly, since the user does not need to perform a special operation for cleaning the inside of the drain bowl 32, there is no need for labor for cleaning, and the user is not burdened with cleaning.
That is, in this embodiment, even if the user is not conscious of cleaning, if the water tap is used, the rotary blade 138 automatically rotates and the inside of the drain bowl 32 is cleaned.

Moreover, in this embodiment, when water work is performed using the faucet 12 in the sink 10, the drainage itself becomes a washing water flow to wash the inside of the drainage bowl 32, so that only the clean water is washed as in the conventional apparatus. Compared with the case of discharging water only for the purpose, water is not used only for cleaning, and water can be saved.

In the present invention, the shape of the rotary blade in the drain bowl 32 can be various other shapes.
FIG. 8 shows an example.
In this example, the rotary blade 138 does not hang downward but is inclined obliquely downward.
In addition, in the present invention, the rotary blade blows up the waste water like a sprinkler and applies it to the garbage bin 42, and forms the shape of the rotary blade so as to wash it, or it passes through the bottom 60 of the drain bowl 32 and the drain port 62. It is also possible to use a rotary blade to scoop up the water flowing in the direction of the water and to apply centrifugal force to this.
In addition, the rotary blades can have various other shapes.

Although the embodiment of the present invention has been described in detail above, this is merely an example.
For example, in the present invention, the rotary blade may be configured so that a part of the lower side of the rotary blade is located below the edge 60a of the bottom surface of the drainage bowl 32 in some cases. A cylindrical magnet is provided directly on the impeller in the bowl 32, while a water turbine housing is disposed on the outer side concentrically with the impeller at the same height, and the water wheel and the impeller are directly connected without passing through the rotating shaft 86. It can also be configured to be magnetically coupled.
Furthermore, in the present invention, it is possible to provide only the first drain recess as the drain recess, and in that case, the first drain recess is configured as an outer cylinder for forming the drain trap. It is also possible to keep it.
Further, when the first drainage recess and the second drainage recess are provided, it is also possible to provide a rotary blade only in the second drainage recess.
In addition, the present invention can be applied to a water receiving tank other than a sink, and can be applied as a water supply / drainage device for cleaning a drainage recess recessed from the water receiving tank. It can be configured with various modifications.

The present invention can be applied to a sink equipped with a sink, and is effective in preventing slime, bad odor and the like.

10 Sink 12 Water faucet 16 Water discharge pipe 18 Water discharge port 22 Water supply pipe 28 Drain recess 30 Bottom 32 Drain bowl (first drain recess)
34 Drain trap 36 Outer cylinder (second drain recess)
50

Drain pipe

58, 62 Drain port 60 Bottom 88

Impeller

92, 116

Magnet

94, 138 Rotary vane 110 Water wheel

Claims

Water is supplied into the water receiving tank from the water outlet of the faucet connected to the water supply pipe, and the water received in the water receiving tank is discharged from the drain outlet of the draining recess that is recessed downward from the bottom of the water receiving tank. A water supply / drainage device that drains into a drain pipe,
A rotary vane that rotates about a rotation axis is provided inside the drain recess, and the rotary vane is driven to rotate using the force of the flow of the water supply flow path from the water supply pipe to the water outlet as a driving force, A water supply / drainage device for generating a cleaning water flow for cleaning the inside of the recess by applying the rotational force of the rotary blade to the drainage in the recess.
The water supply / drainage device according to claim 1,
The drain outlet is provided at the bottom of the drain recess.
The rotary blade has the rotation axis extending in the vertical direction inside the drain port, and at least the upper end is disposed at a position higher than the edge around the drain port on the bottom surface of the drain recess. A water supply / drainage device.
The water supply / drainage device according to claim 1 or 2,
The water supply passage is provided with a water wheel that rotates by the force of the flow of the water supply passage, and the water wheel side magnet is provided in an integrally rotating state on the water wheel, and the rotation is provided at a position separated from the water wheel side magnet by a partition wall. A blade-side magnet that rotates integrally with the blades is provided, the water wheel side and the blade side are magnetically coupled, and the driving force from the water wheel is transmitted to the rotating blades to rotate the rotating blades. Water supply and drainage equipment.
The water supply / drainage device according to claim 1 or 2,
The said rotary blade is formed in the shape extended linearly to radial direction centering | focusing on the said rotating shaft, The water supply / drainage apparatus characterized by the above-mentioned.
The water supply / drainage device according to claim 1,
The drainage recess has an upper first drainage recess having a drain outlet at the bottom and a lower second drainage recess that constitutes a drain trap, the second drainage recess. The water supply / drainage device according to claim 1, wherein the rotary blade for applying a rotational force to the sealed water is provided.