JP6035556B2 - Drainage equipment - Google Patents

Description

  The present invention relates to a drainage device suitable for application to a sink equipped with a sink.

Normally, a drainage device such as a sink forms a recess for drainage by recessing a part of the bottom of the water receiving tank downward, and the water in the water receiving tank flows into the recess for draining and is formed at the bottom of the recess for draining. It drains from the drain outlet.
For example, in a sink, a part of the bottom of the sink as a water receiving tank is recessed downward to form a drain bowl (drain recess), and the water in the sink flows into the drain bowl and is formed at the bottom. It drains out from the drain outlet.
Generally, in a drain bowl of a sink, a garbage bowl for containing garbage is accommodated and held therein.

On the inner surface of this type of drain recess, slime tends to occur due to accumulation of fungi that have taken up nutrients, their dead bodies, or their metabolites.
Such a state where dirt such as slime and other oils adheres is unhygienic and causes a bad odor.

Various types of drainage devices are known as drainage devices of the type that drains water into the drainage recess and drains from the drainage port of the drainage recess.
For example, the following Patent Document 1 discloses an invention relating to a “vortex drainage port”, in which an impeller is rotatably provided inside a drainage recess that houses a hair catcher, and the impeller is drained by flowing into the drainage recess. It is disclosed that a swirl water flow is generated by rotating and the washing is performed by the swirl water flow.

  Patent Document 2 below discloses an invention relating to a “tub drainage device”, in which an impeller having a rotating shaft and a rotating blade is provided at a drain outlet of the bathtub, and the lower end side of the rotating shaft of the impeller Is supported rotatably by a bearing portion provided on the wall surface of the drain outlet, and the impeller is rotated using the flow of drainage from the bathtub to promote drainage.

Those disclosed in these patent documents rotate the impeller in the recess for drainage, but in any case, rotate the impeller using the flow of drainage, and the generated vortex is weak, The cleaning performance is insufficient.
Moreover, in the thing disclosed by patent document 2, since the rotating shaft is supported only in the lower end side, a rotating shaft tends to produce a shaft runout (shake of the tilting direction), and it can ensure the stable rotation of an impeller. difficult.

JP 2007-198130 A JP 2002-266404 A

  The present invention is based on the above situation, can generate a strong eddy current in the drainage that has flowed into the drainage recess, has high cleaning performance for the drainage recess, and the impeller's rotating shaft is shaken or assembled. An object of the present invention is to provide a drainage device that can prevent a slippage from the position and rotate the impeller stably and normally.

Thus, according to the first aspect of the present invention, a drainage recess having a shape recessed downward from the bottom of the water receiving tank is formed, and the water in the water receiving tank is caused to flow into the drainage recess, and the bottom of the drainage recess is formed. In the drainage device for draining from the drainage port formed in the drainage recess, a force by its rotation is applied around the drainage port to the drainage flow from the bottom of the drainage recess to the drainage port. an impeller for generating vortex in the flow of drainage Te provided, the vane wheel is provided with a rotary shaft and a rotating blade striking the rotating direction relative to the drainage, while inserting the rotary shaft into the drain trap, the inside the drain trap, said the force of waste water stream and a portion is disposed in the rotary driving device driven by another power, the impeller at the bottom of the rotating shaft of the rotary drive device linked to some, the supported the drainage trap provided at the lower side of the rotary shaft A support portion that is fitted to a portion and rotatably supports the supported portion, and a bearing portion that is fitted to the upper portion of the rotary shaft and rotatably supports the upper portion. An axial stopper portion below the bearing portion, and a stopper contact portion that abuts the stopper portion in the axial direction and restricts the upward movement of the rotary shaft. Features.

  According to a second aspect of the present invention, there is provided a sealing device according to the first aspect, wherein the drainage trap is inserted into the trap body downwardly, separately from the trap body, and assembled to the bottom of the drainage recess. The support part is provided in the bottom part of the trap main body, and the bearing part is provided in the sealing pipe, respectively.

  According to a third aspect of the present invention, in the second aspect, the support portion is a shaft portion or an upward fitting hole provided upward at a predetermined height, and the supported portion is provided correspondingly downward. Or a shaft portion provided at a predetermined height downward.

  According to a fourth aspect of the present invention, in any one of the second and third aspects, the bearing portion extends downward and is fitted to the rotating shaft, and restricts a relative inclination between the rotating shaft and the sealing cylinder. A cylindrical guide is provided.

Effects and effects of the invention

As described above, in the present invention, the impeller provided inside the drainage recess is forcibly rotated by the driving force of the rotary drive device, and the rotation of the impeller with respect to the flow of drainage from the bottom of the drainage recess toward the drainage port. The force is applied to impede the flow of drainage and push it back with centrifugal force, causing the drainage to stay around the drainage port.
Further, a force due to rotation is applied to the staying waste water, and a strong vortex is generated while stirring the staying water.
The strong vortex allows the bacteria before adhering to the slime and the nutrients, oils and other dirt attached to the inner surface of the drain recess to be washed and removed well.
In addition, when the garbage is stored in the drain recess, the swirl is applied to the outer surface mainly including the lower surface of the garbage so as to be cleaned well.

Various rotary drive devices can be used here, but those using the force of the flow of water flowing inside the pipe, for example, the force of the flow of water in the water supply channel for supplying water to the water receiving tank as the drive force. Can be used.
In this case, a water wheel that rotates with the force of the water flow in the water supply flow path is provided, and the water wheel side magnet is provided in an integrally rotating state with the water wheel, and the wheel wheel is rotated integrally with the impeller at a position separated from the partition wall. It is possible to provide an impeller magnet that performs magnetic coupling between the turbine wheel side and the blade wheel side so that the driving force of the turbine wheel is exerted on the blade wheel for rotation.
In this way, the impeller can be forcibly rotated with a strong momentum using the force of the water flow in the water supply passage as the driving force for rotating the impeller.

In this invention, it fits to the supported part provided in the lower end side of the rotating shaft in an impeller, supports this rotatably, and it fits to the upper part of a rotating shaft, and supports the upper part rotatably. The drainage trap is provided with a bearing portion to perform.
Here, providing on the lower end side of the rotating shaft includes not only providing on the rotating shaft itself but also providing on a member fixed to the rotating shaft.
By doing in this way, the shaft runout of a rotating shaft can be prevented favorably and an impeller can be rotated stably and smoothly.

  In the present invention, an axial stopper portion is provided on the rotating shaft below the bearing portion, and a stopper contact portion that abuts the bearing portion in the axial direction against the stopper portion and restricts the upward movement of the rotating shaft. Another feature is that each is provided.

When a pulling force is applied to the rotating shaft, the rotating shaft moves upward, and the fitting between the drain trap support portion and the supported portion on the lower end side of the rotating shaft is disengaged, the rotating shaft, The impeller cannot rotate normally.
As a result, the cleaning operation due to the rotation of the impeller is not normally performed.

On the other hand, in the present invention, the stopper portion provided by the contact between the stopper portion provided on the rotating shaft and the stopper contact portion provided on the bearing portion prevents the support portion and the supported portion from being disengaged. Even if a pulling force is applied to the rotating shaft, normal rotating operation of the rotating shaft can be ensured.
The stopper portion of the rotating shaft and the stopper contact portion of the bearing portion can be arranged at a predetermined interval in the axial direction. The interval, that is, the stopper clearance, is the distance between the support portion and the supported portion. The interval is set so that the fitting does not come off.

According to a second aspect of the present invention, the drainage trap has a trap body and a sealing tube that is inserted downward into the trap body and is assembled to the bottom of the drainage recess, and the support is mounted on the bottom of the trap body. The seal tube is provided in each part.
The sealing cylinder of the drain trap and the rotating shaft inside the drain trap are arranged at the location where the drainage flows, and dirt adheres and accumulates over a long period of time.
Therefore, it is desirable to clean the rotating shaft and the water seal so that they can be cleaned. For this purpose, it is desirable that the rotating shaft and the water sealing cylinder be removed from the assembly position and taken out to the outside.

  Here, in claim 2, the trap body and the sealing cylinder in the drain trap are separated, and the sealing cylinder is assembled to the bottom of the drain recess, and the rotating shaft is provided in the bearing provided in the sealing cylinder. Therefore, the sealing tube and the rotating shaft can be removed from the assembly position and taken out to the outside, and they can be easily cleaned and dirt can be removed.

The rotating shaft and the water sealing cylinder that have been cleaned must be returned to their original positions and assembled.
At this time, if the rotating shaft is not assembled at the proper position, specifically, the supported portion on the lower end side is not assembled in a state of being correctly fitted to the support portion at the bottom of the trap body in the drain trap. However, if it is misassembled, the normal rotation operation of the impeller, that is, the normal cleaning operation due to the rotation cannot be performed.
However, in claim 2, it is possible to satisfactorily prevent erroneous assembly of the rotating shaft and further the sealing cylinder.

  For example, the support part or the supported part is a shaft part that protrudes upward or downward at a predetermined height, and the supported part or the support part is a fitting hole that fits the shaft part downward or upward. In the case (Claim 3), when the rotation shaft is shifted from the normal position in the direction perpendicular to the shaft, the shaft portion and the fitting hole do not fit, and the shaft portion provided at the bottom of the trap body in the drain trap The lower surface of the rotating shaft rides up, or the shaft portion provided downward on the lower end side of the rotating shaft rides on the bottom of the trap body without fitting into the fitting hole of the trap body.

In this case, when the seal tube is inserted into the trap body after the rotary shaft and is assembled, the stopper contact portion provided on the bearing portion of the seal tube is at a position higher than the normal height. By hitting, the sealing cylinder cannot be inserted deeply into the trap body to the original proper position.
As a result, the operator can immediately notice that the rotating shaft is not correctly assembled at the regular position, and can reassemble the rotating shaft at the regular position again. Therefore, the sealed water bottle can also be assembled at a regular position.
That is, it is possible to guide the rotating shaft and the water sealing cylinder to be assembled at the proper positions by the stopper portion provided on the rotating shaft and the stopper contact portion provided on the sealing water tube.

  Next, according to a fourth aspect of the present invention, a cylindrical guide is provided on the bearing portion of the water seal tube so as to extend downward and fit to the rotation shaft, and to regulate the relative inclination between the rotation shaft and the water seal tube. If it does in this way, when assembling a water seal cylinder, it will become easy to carry out assembly work by the inclination regulation by a guide.

It is the figure which showed the sink and periphery part containing the drainage device which is one Embodiment of this invention. It is principal part sectional drawing of the drainage device 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 drain bowl bottom part of FIG. 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 operation | movement explanatory drawing of the embodiment. It is the figure which decomposed | disassembled and showed the fitting part of the rotating shaft and trap main body in the same embodiment. It is the figure which decomposed | disassembled and showed the water turbine unit in the embodiment. FIG. 6 is a sectional view taken along the line E in FIG. 5. It is the figure which showed the shape of the nozzle in the same embodiment. It is the figure which decomposed | disassembled and showed a part of the same embodiment. It is the figure which expanded and showed the principal part of the water seal cylinder in the same embodiment. It is a schematic diagram explaining the effect of the embodiment. It is a schematic diagram for demonstrating the effect different from FIG. It is the figure which showed the state which isolate | separated the sealing cylinder from the attachment member in the embodiment.

Next, embodiments of the present invention will be described in detail with reference to the drawings.
In FIG. 1, reference numeral 10 denotes a sink (water receiving tank) provided in a sink (not shown), and the sink 10 is provided with a sink tap (hereinafter simply referred to as a faucet) 12. Here, the water tap 12 is a single lever type mixing water tap.
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, water flow adjustment, and water discharge temperature adjustment are performed.
A water supply pipe 22 on the primary side 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 secondary side water supply pipe that forms a water supply flow path that guides water from the mixing portion of the faucet 12 to the water outlet 18, and a water turbine unit 25 to be described later is connected to the water supply pipe 24.

  In the figure, 24A is an inlet side water supply pipe through which the water discharged from the mixing valve flows into the water turbine unit 25, and 24B is an outlet side water supply pipe that guides the water discharged from the water turbine unit 25 to the water outlet 18 side. The portion is connected to a turbine housing 26 described later of the turbine unit 25.

In FIG. 2, reference numeral 32 denotes a drainage bowl as a drainage recess configured to be partially recessed downward from the bottom 30 of the sink 10.
A drain trap 34 is provided below the drain bowl 32.

As shown in FIG. 3, the drain bowl 32 has a flange portion 38 projecting annularly outward in the radial direction at the upper end, and a bottom portion of the sink 10 by a pair of bowl mounting members 156 and 157 via seal members 153 and 154. 30 is attached.
Specifically, the bowl mounting members 156 and 157 are provided with clamping portions 160 and 162, which are connected by a screw connection between the external thread on the outer peripheral surface of the bowl mounting member 157 and the internal thread on the inner peripheral surface of the bowl mounting member 156. The drainage bowl 32 is fixed to the flange portion 159 on the sink 10 side so that the flange portion 38 of the drainage bowl 32 is sandwiched from above and below by the pair of sandwiching portions 160 and 162 together with the flange portion 159 on the sink 10 side. Is attached.

Inside the drain bowl 32, a garbage basket 42 for holding garbage or the like is held. An impeller 88 is rotatably provided on the lower side of the garbage basket 42.
The garbage basket 42 has a frame portion 43 having a substantially quadrangular cross section in a ring shape in the circumferential direction at the upper end portion. The frame portion 43 is provided with a plate-like handle 163 that protrudes toward the center of the garbage basket 42.
In this embodiment, the entire garbage basket 42 excluding the frame portion 43 is made of a punching metal formed by dispersing and forming a large number of through water passage holes.

Further, in this embodiment, the bottom portion 164 of the garbage basket 42 is provided with a concavely curved portion 168 formed by partially curving a part thereof upward.
The concave curved portion 168 is provided in order to facilitate drainage of excess retained water when the large amount of accumulated water is generated around the impeller 88 in the drain bowl 32, that is, to improve drainage performance.

As shown in FIG. 2, the drain trap 34 is a cup-shaped trap body 36 that is an outer cylinder, and an inner cylinder that is configured separately from the trap body 36 and is inserted downward from above into the inside thereof. A sealing cylinder 46 is provided, and the trap main body 36 and the sealing cylinder 46 hold a sealing water 48 at the bottom.
The drain trap 34 holds the sealed water 48 to prevent odor backflow from the drain pipe 50 side into the sink 10.

The trap main body 36 is provided with a drainage port (second drainage port) 58 on its upper side, 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.
Here, the upper end and the lower end of the water sealing tube 46 have an opening shape, and the drainage from the sink 10 flows into the sealing water tube 46 from the opening at the upper end of the water sealing tube 46 and flows down. Then, it flows out between the sealing cylinder 46 and the trap body 36, flows out from the lateral drainage port 58 of the trap body 36 to the drain pipe 50, and is discharged outside.

As shown in FIG. 3, the drainage bowl 32 has a peripheral wall portion 59 and a bottom portion 60.
An opening is formed in the bottom portion 60. The opening is provided at a position eccentric from the center of the bottom 60 of the drainage bowl 32 in plan view, and the upper end of the sealing tube 46 is disposed inside the opening.

The opening at the upper end of the water sealing tube 46 serves as a drain port 62 in the drain bowl 32, and the drainage in the drain bowl 32 is discharged downward through the drain port 62.
As shown in FIG. 4, 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 trap body 36 with respect to the flange portion 64. And the upper end portion of the sealing tube 46 are attached.

Reference numerals 66 and 68 denote trap attachment members (hereinafter simply referred to as attachment members) for attaching the upper end portion of the sealing tube 46 and the upper end portion of the trap body 36 to the flange portion 64 of the drainage bowl 32, both of which have a circular ring shape. There is no.
These mounting members 66, 68 have flange portions 70, 72, and the flange portions 70, 72 sandwich the flange portion 64 of the drainage bowl 32 from both the upper and lower sides via the seal member 158. It is fixed to the flange portion 64 of the drainage bowl 32 by a screw connection between a male screw on the outer peripheral surface and a female screw on the inner peripheral surface of the mounting member 68.

Then, after the upper end portion of the sealing tube 46 is fitted in the fitting state with respect to the mounting member 66, the latching portion 74 at the upper end of the sealing tube 46 is latched to the stepped portion on the inner surface of the mounting member 66. In such a state, the sealing tube 46 is attached to and held by the flange portion 64 of the drainage bowl 32 via the attachment members 66 and 68.
The sealing tube 46 is attached to and held by the mounting member 66 by being inserted downward with respect to the mounting member 66 from the upper side in the drawing.
More specifically, as shown in FIG. 16, protrusions 170 are provided at positions different from each other by 180 ° on the inner peripheral surface of the mounting member 66, and a corresponding pair of helical shapes are formed on the outer peripheral surface of the water seal tube 46. A concave line 172 is provided.

When the sealing tube 46 is attached, the projection 170 of the mounting member 66 and the opening at the lower end of the concave 172 of the sealing tube 46 are fitted, and the sealing tube 46 is rotated and screwed.
Then, the water sealing tube 46 moves downward in the figure by the guiding action of the protrusion 170 and the recess 172. Finally, the upper locking portion 74 hits and locks the stepped portion of the mounting member 66, so that the sealing tube 46 is attached to the mounting member 66 in the axially positioned state.

  On the other hand, the trap body 36 is fitted into the cylindrical fitting portion 76 of the mounting member 68 with its upper end portion fitted therein, and the flange portion 78 provided on each of the trap body 36 is overlapped with each other in the clip 80. Is attached to the attachment member 68 and held.

In this embodiment, the impeller 88 is composed of an impeller body 89 and a rotating shaft 86 that is separate from the impeller body 89 as shown in FIGS. Here, the rotating shaft 86 is made of metal, and the impeller body 89 is made of resin.
The specific configuration and operation of the impeller body 89 will be described later.

The rotation shaft 86 is mainly composed of a main portion 242 having a circular cross section, and a fitting shaft portion 244 having a circular cross section having a smaller diameter is further provided above the main portion 242 as shown in FIG. An engagement shaft portion 176 having a polygonal cross section (here, a quadrangular shape) is provided on the upper side.
Then, the engagement shaft portion 176 is fitted into a corresponding polygonal (here, quadrangular) engagement hole 174 at the back of the later-described fitting hole 142 at the center of the impeller body 89, and The impeller body 89 is rotated integrally with the rotating shaft 86 by the engaging action.
A metal reinforcing ring 246 having a polygonal (here, quadrangular) engagement hole inside is embedded in the lower end position of the engagement hole 174.

As shown in FIG. 13, arms 82 extend radially inward from three locations that differ by 120 ° in the circumferential direction from the upper end of the water sealing tube 46. As shown in FIG. A cylindrical bearing portion 248 is integrally provided at the end portion and in the central portion in the radial direction of the sealing tube 46.
Then, the fitting shaft portion 244 of the rotating shaft 86 is fitted into the bearing portion 248 so that the fitting shaft portion 244, that is, the upper portion of the rotating shaft 86 is fitted to the bearing portion 248. It is rotatably supported in the radial direction.
The bearing portion 248 incorporates a bearing member 250 as a cylindrical sliding member.

  The bearing portion 248 is provided with a cylindrical guide 252 extending downward, and the guide 252 is fitted to the rotary shaft 86 in detail with respect to the main portion 242 having a large diameter. It is fitted.

The guide 252 has a function of fitting to the rotation shaft 86 and restricting the relative inclination between the rotation shaft 86 and the sealing tube 46, and the inner peripheral surface extends in a straight shape in the axial direction of the rotation shaft 86. As shown in the partially enlarged view of FIG. 4, a predetermined annular gap, that is, a predetermined minute fitting clearance C ₂ is formed around the axis between the inner peripheral surface and the outer peripheral surface of the rotating shaft 86. ing.
A female tapered surface 262 is provided on the inner peripheral side of the lower end of the guide 252.

The rotation shaft 86 has a stepped shape at the boundary between the main portion 242 having a large diameter and the fitting shaft portion 244 having a smaller diameter, and the stepped shape portion is a stopper portion 254 in the axial direction. Is made.
The bearing portion 248 also has a base portion of the cylindrical guide 252 that has a stepped shape, and at the stepped shape portion, a stopper contact that faces the stopper portion 254 of the rotating shaft 86 in the axial direction (vertical direction). Part 256 is configured.
In assembled state, between the stoppers 254 and the stopper contact portion 256, and forms a predetermined axial gap as shown in the partial enlarged view of FIG. 4, i.e. the stopper clearance C _1.

  In the present embodiment, the stopper portion 254 is provided on the rotating shaft 86 and the corresponding stopper contact portion 256 is provided on the bearing portion 248, so that when the rotating shaft 86 is about to move upward in the figure, the stopper action is applied. The upward movement is restricted.

As shown in FIG. 5, an impeller 88 side magnet 178 is attached to the lower end portion of the rotation shaft 86 by an attachment member 180 fixed to the rotation shaft 86.
In this embodiment, the magnet 178 has a disk shape having a through-opening at the center, and is arranged in a state where its center axis coincides with the center axis of the rotation shaft 86. That is, the board surface is arranged in the vertical direction.

The attachment member 180 is made of resin, and has a main body portion 182 having a shape with a lower end opened, and a lid portion 184 that closes the lower end opening.
The magnet 178 is sandwiched between the main body portion 182 and the lid portion 184, and is attached to the rotary shaft 86 in an integrally rotated state via the attachment member 180.
The attachment member 180 has a downward circular fitting hole (supported portion) 188 at the center, and a ring-shaped bearing member 190 is attached thereto.

In this embodiment, the trap body 36 is closed at the bottom at the bottom 192. The bottom 192 is configured integrally with the other part of the trap body 36.
As shown in FIGS. 8 and 12, the bottom portion 192 is provided with a shaft portion (support portion) 194 that protrudes upward at a predetermined height at the center thereof. Here, the shaft portion 194 is made of metal, and a male tapered surface 260 is formed along the outer periphery of the upper end thereof.

Then, a fitting hole 188 on the lower end side of the rotating shaft 86 is fitted into the shaft portion 194, more specifically, a fitting hole 188 of the mounting member 180 fixed to the rotating shaft 86 is fitted downward via the bearing member 190. The portion 194 and the fitting hole 188 are fitted over a predetermined length in the axial direction.
The lower end side of the rotating shaft 86 is rotatably supported in the radial direction by fitting the shaft portion 194 and the fitting hole 188.
The shaft portion 194 has a disc-shaped base portion 258 at the lower end.
The mounting member 180 is supported upward by the base 258 in the bearing member 190.

The stopper clearance C ₁ (see FIG. 4) between the stopper contact portion 256 of the bearing portion 248 and the stopper portion 254 of the rotary shaft 86 is the fitting between the shaft portion 194 and the fitting hole 188 in the axial direction. Even if the pulling force is applied to the rotating shaft 86 and the rotating shaft 86 moves upward, the shaft portion 194 and the fitting hole 188 are stopped by the stopper action of the stopper portion 254 and the stopper contact portion 256. It is designed so that it cannot be disengaged.
In other words, before the fitting of the shaft portion 194 and the fitting hole 188 is disengaged, so that the stopper acts in contact with the stopper portion 254 and the stopper contact portion 256 axial direction, the stopper clearance C ₁ is defined ing.

A cylindrical outer fitting portion 196 is formed on the lower end portion of the trap body 36 so as to protrude downward.
On the other hand, the turbine housing 26 in the turbine unit 25 disposed below the trap body 36 is provided with an inner fitting portion 198 at the upper end, and the inner fitting portion 198 is fitted into the outer fitting portion 196. The state is fitted.
The turbine housing 26 is attached to the trap body 36 by the attachment member 200 in the fitted state.

The water turbine housing 26 has a cylindrical portion 202 centering on the rotation axis of the water wheel 110 and a lower bottom portion 204 that form an outer peripheral wall thereof, a housing main body 26A having an open top end, and an upper bottom portion 206. The lid body 26B closes the opening at the upper end of the housing body 26A.
Here, the housing body 26A and the lid body 26B are assembled by screwing.

The water wheel 110 housed in the water wheel housing 26 is configured by assembling a lower first member 208 and an upper second member 210 that are separate from each other.
Inside the water wheel 110, a magnet 214 serving as a water wheel side magnet is incorporated.
Here, the water wheel 110 side magnet 214 is incorporated in the water wheel 110 so as to be sandwiched in the vertical direction by the lower first member 208 and the upper second member 210.

The water wheel 110 side magnet 214 is also a disk-like shape having a through-opening at the center, and is arranged in a state in which the center axis coincides with the center axis of the rotation shaft 86. The turbine wheel housing 26 forming a part and the bottom 192 of the trap body 36 are used as a partition wall, and are vertically opposed to the impeller 88 side magnet 178 arranged at the upper position thereof.
That is, in the axial direction of the rotating shaft 86, the impeller 88 side magnet 178 and the water wheel 110 side magnet 214 are disposed to face each other with a predetermined distance therebetween.

The rotating force of the water wheel 110 is transmitted to the impeller 88 on the rotating shaft 86 by the magnetic coupling of the magnets 178 and 214, and the impeller 88, specifically, the impeller body 89 is connected to the water wheel 110 in the drain bowl 32. It can be rotated together.
That is, the impeller 88 is forcibly driven to rotate using the force of the water flow in the water supply passage from the mixing portion of the faucet 12 to the water outlet 18 as a driving force.

  In this example, the impeller 88 side magnet 178 attached to the water turbine unit 25 and the rotation shaft 86 forms a rotation drive device 264 of the impeller 88, and the rotation shaft is compared with the rotation drive device 264. The lower end of 86 is operatively connected via a mounting member 180.

As shown in FIG. 9, the water turbine 110 includes a plurality of blades 212 that protrude downward from the lower surface of the first member 208 along the circumferential direction.
As shown in FIG. 5, the water turbine 110 has a cylindrical portion 215 and a shaft portion 216 at the center thereof. In the cylindrical portion 215 and the shaft portion 216, the corresponding shaft portion 218 and the cylindrical portion of the water turbine housing 26 are provided. 220 are rotatably supported via ring-shaped bearing members 190, respectively.
In FIG. 5, reference numeral 236 denotes a water drain plug.

The cylindrical portion 202 of the water turbine housing 26 is provided with an inlet 126 and an outlet 128 as shown in FIG. 10, and water from the inlet side water supply pipe 24A shown in FIG. The water flows into the water turbine housing 26 from the inlet 126, and the flow is applied to the blades 212 of the water wheel 110 in a direction in which the water wheel 110 is rotated in a certain direction, and is rotated.
Then, the water that has passed through the water wheel 110 flows out from the outlet 128.
The water that has flowed out is guided to the water outlet 18 of the faucet 12 through the water supply pipe 24B on the outlet side, 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 FIG. 10, the water supply inlet 126 and the outlet 128 provided in the cylindrical portion 202 of the water turbine housing 26 are respectively tangential to the circular inner peripheral surface of the cylindrical portion 202. Specifically, it is oriented so as to face in the same direction as the tangential direction of the downstream portion and the upstream portion in the immediate vicinity of the inflow port 126 and the outflow port 128 so as to face the same direction.
In the present embodiment, a nozzle 222 that is separate from the water turbine housing 26 is incorporated in the inflow port 126.

  The nozzle 222 increases the flow rate of the water supply and ejects it toward the water wheel 110, specifically toward the blades 212 of the water wheel 110. By incorporating such a nozzle 222 into the inlet 126, The rotational speed is increased, thereby increasing the rotational speed of the impeller 88 in the drainage bowl 32, and the washing water flow can be efficiently generated by the impeller 88. And thereby, the cleaning efficiency in the drain bowl 32 can be increased.

FIG. 11 specifically shows the shape of the nozzle 222.
As shown in the drawing, the nozzle 222 has a flange portion 228 at the base end of a cylindrical main body 226 and a nozzle hole 230 inside the main body 226.
As shown in the figure, the nozzle 222 has a shape in which the tip end surface 238 is cut obliquely. More specifically, the entire front end surface 238 including the opening surface 238 b formed by the opening 232 at the front end of the nozzle hole 230 and the front end surface 238 a of the cylindrical main body 226 is the inner peripheral surface of the cylindrical portion 202 in the water turbine housing 26. It is made into the arc-shaped surface (arc surface) which curves with the same curvature.
Then, the nozzle 222 allows the tip end surface 238 having an arc shape to coincide with the inner peripheral surface of the cylindrical portion 202 (with the front end surface 238 positioned on the extension of the inner peripheral surface P of the cylindrical portion 202). 126 is installed in a direction oriented.

If the position of the nozzle 222 is shifted around the central axis, the tip end surface 238 forming an arc surface does not match the inner peripheral surface P of the cylindrical portion 202. Therefore, the nozzle 222 is provided with a convex portion 231 for positioning. It is.
On the other hand, a corresponding positioning recess 234 is provided inside the inflow port 126 as shown in FIG. 9, and the nozzle 222 is incorporated by fitting the projection 231 into the recess 234. The nozzle 222 can be incorporated into the inlet 126 in a properly positioned state.

  By setting the nozzle 222 incorporated in the inlet 126 as described above, the opening 232 at the tip of the nozzle hole 230 can be positioned as close to the water turbine 110 as possible, and the jet flow from the opening 232 can be as much as possible. Without being diffused, it can be applied to the blades 212 of the water wheel 110 from a close position, and the rotation speed of the water wheel 110 can be efficiently increased.

Also in this embodiment, the hole diameter D inside the outlet 128 is larger than the hole diameter d of the nozzle hole 230 in the nozzle 222.
By doing in this way, the water that has flowed into the water turbine housing 26 from the inflow port 126 becomes easy to escape from the outflow port 128, and the water that has flowed into the water wheel housing 26 stays long, and this becomes the rotational resistance of the water wheel 110. Can be prevented.

The impeller main body 89 disposed inside the drain bowl 32 has a hub 130 at the center and a circular donut-shaped plate-like portion 132 at the outer periphery as shown in FIG. A drainage outlet opening 134 penetrating in the vertical direction and communicating with the drainage port 62 is formed between them.
Here, the hub 130 in the central portion and the plate-like portion 132 in the outer peripheral portion are connected by a plurality of arms 136.

As shown in FIG. 6B, the annular plate-like portion 132 in the outer peripheral portion has a shape inclined upward from the center side toward the outer peripheral side. A plurality of plate-like rotary blades 138 whose side shape and front shape form a triangular shape are provided at regular intervals along the circumferential direction so as to hang from the lower surface of the plate-like portion 132.
Here, the rotary blade 138 has a shape extending linearly from the center side of the impeller body 89 in a radial direction, that is, in a normal direction with respect to a circle around the rotation axis centered on the rotation axis.
In addition, the base part of the inner peripheral side of the plate-shaped part 132 is comprised thicker than the other part of the plate-shaped part 132 over the perimeter, The thick-walled part 140 is shown in FIG.6 (C). As shown, the arm 136 is projected downward.

The hub 130 protrudes further downward than these thick portions 140.
As shown in FIG. 6 (B), the hub 130 is provided with a fitting hole 142 that opens downward. A polygonal (tetragonal) engagement hole 174 is provided at the back of the fitting hole 142, and a polygonal (tetragonal) engagement shaft portion 176 at the upper end of the rotation shaft 86 is provided there. Are engaged so that the impeller body 89 is rotated integrally with the rotary shaft 86.

  As shown in FIGS. 2 and 3, the impeller body 89 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 body 89 is provided. However, the upper surface (bottom surface) of the bottom portion 60 in the drain bowl 32, specifically, the entire bottom surface 60a around the drain port 62 on the bottom surface is positioned.

  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 FIG.

At this time, the water (drainage) flowing through the bottom 30 of the sink 10 flows into the drainage bowl 32 and reaches the bottom 60 thereof.
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 the drainage is a centripetal flow from the entire circumference around the drainage port 62 toward the drainage port 62, the flow does not act as a force for rotating the impeller 88 in one specific direction).

At this time, the impeller 88 is already forcibly rotated by using the force of the water flow in the water supply 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 a resistance of the flow of the drainage toward the drainage port 62 and prevents and suppresses the inflow to the drainage port 62.

The impeller 88 not only serves as a flow resistance by the rotary blade 138 but also causes the centrifugal force generated by its rotation to act on the flow of the drainage to move the drainage away from the drainage port 62 as shown in FIG. Pushing back in the direction, the action causes the drainage to stay around the drain port 62.
In addition, the impeller 88 generates a vortex while exerting a stirring action by applying a centrifugal force to the staying water by the rotary blade 138.

  At this time, in the present embodiment, the outer peripheral portion of the impeller 88 is provided with a plate-like portion 132 having an annular shape in the circumferential direction, and the rotary blade 138 is provided on the lower surface of the plate-like portion 132. The drainage between the rotary blades 138 is blocked by the annular plate-like portion 132 and cannot pass upward between the rotary blades 138 and 138, and the impeller 88 rotates due to the drainage. Centrifugal force is effectively applied, and the stagnant water of the drainage is generated well around the drain port 62, and the vortex generated by the drainage is generated well.

The generated vortex strikes the inner surface of the drain bowl 32 vigorously, 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 vortex 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, thereby performing 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 impeller 88, that is, the rotary vane 138 is excessive, the drained wastewater may overflow from the drainage bowl 32 to the bottom 30 side of the sink 10, but in this embodiment, it stays. When the amount of water becomes large, the excessive stagnant water can flow into the drain outlet 62 through the outflow opening 134 of the impeller 88 (at this time, the stagnant water guides the upper surface of the plate-like portion 132 on the outer peripheral portion of the impeller 88. The liquid is smoothly guided to the outflow opening 134 by the action and flows out into the drain outlet 62), and excessive stagnant water is generated around the impeller 88, and the drainage is subjected to the centrifugal force by the impeller 88 and the bottom 30 of the sink 10. The phenomenon that overflows to the side can be prevented.

In the present embodiment, when water is discharged from the water discharge port 18, the impeller 88 rotates and the inside of the drain bowl 32 is automatically washed.
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, and thus water is discharged only for washing. It can save water compared to.

FIG. 12 shows the drainage device of this embodiment in an exploded manner.
Below, based on this FIG. 12, the procedure of the assembly | attachment of the drainage device of this example and the procedure of removal are demonstrated.
In the drainage device of this embodiment, first, the downward fitting hole 188 provided on the lower end side of the rotating shaft 86 is fitted downwardly on the shaft portion 194 of the bottom portion 192 of the drainage trap 34. Specifically, the fitting hole 188 of the mounting member 180 fixed to the lower end portion of the rotation shaft 86 is fitted downward to the shaft portion 194.
As a result, the lower end side of the rotating shaft 86 is assembled to the bottom 192 of the trap body 36 in the drain trap 34.

Thereafter, the upper part (fitting shaft part 244) of the rotating shaft 86 is fitted into the bearing part 248 of the sealing cylinder 46, the sealing cylinder 46 is inserted into the trap body 36 through the inside of the mounting member 66, and the upper part is inserted. The mounting member 66 is screwed and assembled by a rotation operation.
At this time, the upper portion of the rotating shaft 86 is supported in the radial direction so as to be rotatable by the bearing portion 248 of the sealing tube 46. Further, the engagement shaft portion 176 at the upper end portion of the rotation shaft 86 is protruded upward from the bearing portion 248.
Further, the guide 252 provided downward on the bearing portion 248 is fitted to the main portion 242 of the rotating shaft 86 in an externally fitted state.

Therefore, next, the impeller body 89 is assembled to the rotating shaft 86.
Specifically, the impeller body 89 is assembled to the rotating shaft 86 so that the engaging hole 174 is fitted downward with respect to the engaging shaft portion 176 of the rotating shaft 86, and the impeller body 89 is installed in the drain bowl 32. Set to be rotatable.
The procedure for disassembling each part is the reverse of these procedures.

  When assembling the drainage device as described above, specifically, when assembling the impeller 88 and the sealing cylinder 46, the rotary shaft 86 previously inserted into the trap body 36 of the drainage trap 34 is not assembled at the proper position. As shown in FIG. 15, for example, the fitting hole 188 of the attachment member 180 on the lower end side of the rotation shaft 86 is not fitted into the shaft portion 194 of the bottom 192 of the trap body 36, and the lower surface of the attachment member 180. If it is riding on the shaft portion 194, when the seal tube 46 is inserted into the trap body 36 and assembled, the seal tube 46 cannot be assembled.

In the state shown in FIG. 15, the stopper portion 254 of the rotating shaft 86 is at a position higher than the height when the rotating shaft 86 is positioned at the normal position. When the stopper portion 256 of the bearing portion 248 hits the stopper portion 254 of the rotating shaft 86 downward when fitted to the shaft 244, the sealing tube 46 is inserted deeply downward to the final assembly position. It is because it becomes impossible.
As a result, the operator knows that the rotary shaft 86 is not assembled in the proper position with respect to the trap body 36.
As a result, it is possible to guide the operator to reassemble the rotating shaft 86 at the proper position.

  After that, when the rotary shaft 86 is assembled at a proper position, the sealed water tube 46 can be inserted deeply into the trap body 36 to the original position, and the sealed water tube 46 can be assembled to the mounting member 66 by a rotation operation without any trouble. It becomes possible.

In the drainage device according to the present embodiment, the sealing cylinder 46 and the rotating shaft 86 are located at locations where drainage flows, and dirt adheres and accumulates over a long period of time.
In this case, in the drainage device of the present embodiment, the sealing tube 46 and the rotating shaft 86 can be removed from the assembly position and taken out to the outside, so that they can be easily cleaned and dirt can be removed. It is.

  The rotating shaft 86 and the water sealing tube 46 that have been cleaned by removing the dirt are then assembled in their original positions, but at this time, the rotating shaft 86 and the water sealing tube 46 are not assembled in the proper positions. Therefore, if the impeller body 89 is not assembled in its original position, the impeller 88 cannot rotate normally, and therefore the washing operation by the rotation of the impeller 88 is normal. Can not do.

  However, in the drainage device of the present embodiment, the rotation shaft 86, the sealing cylinder 46, and the impeller body 89 are moved by the action of the stopper portion 254 provided on the rotation shaft 86 and the stopper contact portion 256 provided on the sealing tube 46. It can be reliably assembled at the correct assembly position.

In the drainage device of this embodiment, the impeller body 89 is separated from the rotating shaft 86, and only the impeller body 89 is removed and cleaned under the assembled state of the rotating shaft 86 and the sealing tube 46. Is also possible.
In this embodiment, since the rotation shaft 86 and the impeller body 89 can transmit rotation by the engagement of the engagement shaft portion 176 and the engagement hole 174, the rotation shaft 86 and the impeller body 89 are connected to each other. It can be loosely fitted.
Therefore, when removing the impeller body 89, only the impeller body 89 can be easily detached from the rotating shaft 86 and removed.

However, in some cases, the engagement hole 174 of the impeller body 89 and the engagement shaft portion 176 of the rotating shaft 86 are fixed due to dirt or the like. In this case, the impeller body 89 is pulled up to be removed. In such a case, the pulling force may cause the rotary shaft 86 to move upward together.
At that time, due to the upward movement of the rotation shaft 86, the fitting hole 188 in the state shown in FIG. 14A, that is, the fitting state in the shaft portion 194, is detached from the shaft portion 194 as shown in FIG. If the lower surface of the attachment member 180 on the lower end side of the rotating shaft 86 rides on the shaft portion 194, the impeller 88 cannot normally rotate.

However, in the drainage device of the present embodiment, as shown in FIG. 14B, even if the pulling force acts on the rotating shaft 86 and the rotating shaft 86 moves upward, the stopper of the rotating shaft 86 is used. When the portion 254 hits the stopper contact portion 256 of the sealing tube 46, the fitting hole 188 on the lower end side of the rotating shaft 86 is prevented from being detached from the shaft portion 194.
Therefore, even if a pulling force is applied upward with respect to the rotating shaft 86, the rotating shaft 86 can be reliably maintained in a regular assembled state.

In this embodiment, the stopper clearance C _{1 in the} predetermined axial direction shown in FIG. 4 is generated between the stopper portion 254 and the stopper contact portion 256 under the assembled state of the rotating shaft 86 and the sealing tube 46. There is.
The sink 10 may be made of stainless steel or artificial marble (eg, stainless steel is about 0.7 mm thick, and artificial marble is about 6 mm thick). The position of the drainage bowl 32 shown in FIG. 3 is different between the case of using an artificial marble and the case of using an artificial marble.
In the present embodiment, the variation of the position of the drain bowl 32, at the stopper clearance C ₁ can be absorbed well, the stopper portion 254 and the stopper contact portion 256 in an assembled state is able to prevent the interference occurs it can.

Changes in the upper and lower assembly positions of the drainage bowl 32 may also occur due to variations in the crushing allowance during construction for the seal members 153, 154 and 158 shown in FIG.
Against the upper and lower variations in assembly position of the drain bowl 32 due to the variation, it is possible to absorb at stopper clearance C _1.
In other words, previously set the size of the stopper clearance C ₁ advance as such.

In the drainage device of the present embodiment, the relative inclination between the rotating shaft 86 and the water sealing tube 46 can be further regulated by the action of the guide 252 provided in the bearing portion 248.
As a result, when the sealing tube 46 is assembled after the rotation shaft 86 is inserted into the trap body 36, the sealing tube 46 can be inserted into the trap body 36 in a direction close to vertical. 172 can be easily fitted to the protrusion 70 of the mounting member 66, and the sealing tube 46 can be smoothly assembled to the mounting member 66.

Although the embodiment of the present invention has been described in detail above, this is merely an example.
For example, in the above-described embodiment, the shaft portion 194 is provided as a support portion at the bottom portion 192 of the trap body 36 and the fitting hole 188 is provided as a supported portion at the lower end side of the rotation shaft 86. It is also possible to provide a shaft portion as a supported portion on the lower end side and a fitting hole as a support portion in the bottom portion 192 of the trap body 36.
In the present invention, the bottom 192 of the trap body 36 can be configured separately from the other parts and assembled to the other parts.
In addition, in the present invention, the above-mentioned drain bowl 32 and other drain recesses can be integrally provided in a sink or other water receiving tank. Further, in the present invention, in some cases, a part of the lower side of the rotary blade is a drain bowl. It is also possible to configure the impeller so as to be located below the edge 60a on the bottom surface of 32.
In addition, the shape of the impeller can be configured in various shapes other than the shape exemplified above.
Furthermore, in the above-described embodiment, the impeller is driven to rotate by using the force of the water supply flowing through the water supply flow path from the water supply pipe to the faucet spout, as a power. It is also possible to rotationally drive the impeller.
In addition, this invention can be comprised in the form which added the various change in the range which does not deviate from the meaning.

10 Sink (water receiving tank)
32 Drain bowl (recess for drainage)
34 Drain trap 36 Trap body 46 Sealing cylinder 60 Bottom 62 Drain outlet 86 Rotating shaft 88 Impeller 110 Turbine 126 Inlet 138 Rotating vane 188 Fitting hole (supported part)
194 Shaft (support)
248 Bearing portion 254 Stopper portion 256 Stopper contact portion 264 Rotation drive device

Claims (4)

A drainage device configured to form a drainage recess recessed downward from the bottom of the water receiving tank, allowing water in the water receiving tank to flow into the drainage recess and draining from a drain outlet formed in the bottom of the drainage recess. In
An impeller for generating a vortex in the drainage flow by applying a force by its rotation around the drainage port to the drainage flow from the bottom of the drainage recess to the drainage port in the drainage recess. Provided,
The vane wheel has a rotary shaft, and a rotary blade striking the rotating direction relative to the drainage, while inserting the rotary shaft into the drain trap, the interior of the drainage trap, the force of the waste water stream is some of the rotary drive device driven by another power is disposed, the impeller is connected with a portion of the lower portion of the rotary shaft of the rotary drive device,
The drain trap is fitted to a supported portion provided on the lower end side of the rotating shaft to rotatably support the supported portion, and is fitted to the upper portion of the rotating shaft. And providing a bearing portion that is rotatably supported,
The rotating shaft has an axial stopper portion below the bearing portion, and the bearing portion has a stopper contact portion that abuts the stopper portion in the axial direction and restricts the upward movement of the rotating shaft. Drainage device characterized by providing each.
2. The drain trap according to claim 1, wherein the drain trap has a trap body, and a sealing cylinder that is separated from the trap body and is inserted downward into the trap body and assembled to the bottom of the drain recess. ,
The drainage device according to claim 1, wherein the support portion is provided at a bottom portion of the trap body, and the bearing portion is provided at the sealing cylinder. In claim 2, the support portion is a shaft portion or an upward fitting hole provided upward at a predetermined height,
The drainage device, wherein the supported portion is a fitting hole provided downward correspondingly or a shaft portion provided downward at a predetermined height.   4. The cylindrical guide according to claim 2, wherein the bearing portion is provided with a cylindrical guide that extends downward and is fitted to the rotating shaft and regulates a relative inclination between the rotating shaft and the sealing cylinder. Drainage device characterized by being.

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