JP6138717B2 - Drainage equipment - Google Patents

Description

  The present invention relates to a drainage device, for example, a drainage device suitable for application to a sink or the like equipped with a sink.

  Usually, a drainage device such as a sink has a drainage recess formed by recessing a part of the bottom of the water receiving tank downward, and allows the water in the water receiving tank to flow into the drainage recess. The water is drained from a drain port formed at the bottom of the slab. For example, in a sink, water in the sink is allowed to flow into a drainage bowl (drainage recess) formed by recessing a part of the bottom of the sink as a water receiving tank, and from a drain outlet formed in the bottom of the sink. It drains outside. Generally, a garbage bowl for storing garbage is accommodated in a drain bowl of the sink, and the garbage bowl is held in the drain bowl.

  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, Patent Document 1 discloses an invention relating to a “swirl drain port”. This swirl drain port is provided with a rotating impeller inside a recess for drainage that accommodates a hair catcher, and generates a swirling water flow by rotating the impeller by drainage flowing into the recess for drainage. Cleaning is performed with a swirling water flow.

  Patent Document 2 discloses an invention relating to a “drain plug device at the bottom of a water tank”. This drain plug device is provided with a plurality of rotary blades extending radially from the rotary shaft portion of the drain plug that opens and closes the drain port, and the rotary blades rotate vigorously by the action of the drainage flowing into the drain passage. This creates a swirling flow in the drainage.

  Further, Patent Document 3 discloses an invention relating to a “remotely operated drain plug”. Similar to the invention disclosed in Patent Document 2, this remote-operated drain plug is provided with rotating blades extending radially from the rotating shaft portion of the drain plug that opens and closes the drain port. The rotating blade is rotated integrally with the plug body by the flowing waste water.

JP 2007-198130 A JP-A-9-268623 Japanese Patent Laid-Open No. 9-316956

  However, although the invention disclosed in each of the above-mentioned patent documents can rotate the rotating blade in the drain recess, in any case, the drainage is quickly discharged, and the washing water flow by the drainage is sufficiently provided. It cannot be generated.

  The present invention has been made in view of such a situation, and an object of the present invention is to provide a new drainage device having a configuration capable of effectively cleaning dirt in the drainage recess by drainage flowing into the drainage recess. It is to provide.

  In order to solve the above-described problems, a drainage device according to an aspect of the present invention includes a drainage recess that is partially recessed inside a water receiving tank, a drainage port formed at the bottom of the drainage recess, and a drainage port. A rotating body configured to generate a washing water flow by rotating in the vicinity, and to block the flow of the waste water flowing downward from the drain port according to the number of rotations, and a water supply mechanism for supplying water used in the water receiving tank, The first water wheel provided in the first path in the middle of the water supply mechanism, rotated in the flow of water in the first path, and the second path different from the first path in the middle of the water supply mechanism, the second A second water turbine that rotates with the flow of water in the path; and a rotational force transmission mechanism that transmits the rotational force of at least one of the first water wheel and the second water turbine to the rotating body.

  According to this aspect, if either the first water wheel or the second water wheel rotates properly, the appropriate rotational force is transmitted to the rotating body, and the drainage water is discharged for a wide range of water supply flow rates. The cleaning water flow can be efficiently generated in the concave portion.

  The 1st path | route and the 2nd path | route may be comprised so that the water which passed through one side may be supplied to a water receiving tank, without passing through the other. Thereby, for example, it becomes easy to use a water wheel suitable for each of a plurality of water taps connected to each path.

  The rotational force transmission mechanism includes a rotating body magnet provided to rotate integrally with the rotating body, a first water wheel magnet provided to rotate integrally with the first water wheel, and a second water wheel. And a second turbine magnet provided to rotate integrally. The rotating body magnet, the first turbine magnet, and the second turbine magnet may be arranged at intervals at which a magnetic attractive force capable of transmitting torque to adjacent magnets works. Thereby, rotational force can be transmitted, separating the 1st path | route and the 2nd path | route reliably.

  The first water wheel may be configured so that the number of rotations at the same water supply flow rate is different from that of the second water wheel. Thereby, it can respond to different feed water flow rates.

  The water supply mechanism has a first faucet from which water passed through the first path is discharged, and a second faucet from which water passed through the second path is discharged without mixing with water passed through the first path. May be. Thereby, the faucet from which an application and an appropriate flow rate differ can be used.

  The water supply mechanism may have a faucet that is discharged after the water passing through the first path and the water passing through the second path merge. Thereby, an appropriate cleaning effect can be obtained by drainage from a small flow rate to a large flow rate discharged from one water faucet.

  The water supply mechanism includes an adjustment valve that adjusts the flow rate of water flowing to the first path and the second path, detection means that detects flow rate information correlated with the flow rate of water discharged from the faucet, and the detected flow rate information And control means for controlling the opening / closing switching or opening of the regulating valve based on the control valve. Thereby, an appropriate cleaning effect can be obtained by drainage from a small flow rate to a large flow rate discharged from one water faucet.

  ADVANTAGE OF THE INVENTION According to this invention, the dirt in the recessed part for drainage can be effectively wash | cleaned with the waste_water | drain which flowed into the recessed part for drainage.

It is a perspective view which shows the sink containing the drainage device which concerns on 1st Embodiment, and its peripheral part. It is principal part sectional drawing of the drainage device shown in FIG. It is sectional drawing which expanded and showed the drainage bowl shown in FIG. 2, and its peripheral part. It is the figure which expanded and showed the bottom part of the drainage bowl shown in FIG. It is sectional drawing which expanded and showed the water turbine unit shown in FIG. 2, and its peripheral part. It is the figure which decomposed | disassembled and showed the fitting part of the rotating shaft and outer cylinder which concern on this Embodiment. It is a disassembled perspective view of the water turbine unit which concerns on this Embodiment. FIG. 6 is a cross-sectional view taken along the line II in FIG. 5. It is the figure which showed the shape of the nozzle which concerns on this Embodiment. FIG. 10 (A) to FIG. 10 (C) are diagrams showing an impeller according to the present embodiment. FIG. 11 (A) and FIG. 11 (B) are diagrams for explaining the operation of the impeller according to the present embodiment. It is the figure which showed typically the relationship between the rotation speed of a water wheel and an impeller, and the amount of water, in order to demonstrate the effect which concerns on this Embodiment. It is a schematic diagram which shows the outline of the drainage apparatus which concerns on 2nd Embodiment. It is principal part sectional drawing for demonstrating an example of a rotational force transmission mechanism. It is the figure which showed typically the relationship between the rotation speed of the water wheel and impeller which concerns on 2nd Embodiment, and the amount of water. It is a schematic diagram which shows the outline of the drainage apparatus which concerns on 3rd Embodiment. It is the figure which showed typically the relationship between the rotation speed and water quantity of the water wheel and impeller which concern on 3rd Embodiment. It is a schematic diagram which shows the outline of the drainage apparatus which concerns on 4th Embodiment. It is the figure which showed typically the relationship between the rotation speed of the water wheel and impeller which concerns on 4th Embodiment, and the amount of water.

  Hereinafter, the best mode for carrying out the present invention will be described in detail with reference to the drawings. In the description of the drawings, the same elements are denoted by the same reference numerals, and repeated descriptions are omitted as appropriate.

(First embodiment)
FIG. 1 is a perspective view showing a sink including a drainage device according to the first embodiment and its peripheral portion. The sink (water receiving tank) shown in FIG. 1 is provided in a sink (not shown). The sink 10 is provided with a sink faucet (hereinafter simply referred to as “water faucet”) 12. Here, the faucet 12 is a sigle lever type mixing faucet. The faucet 12 includes a faucet body 14 that stands up 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. Further, inside the faucet body 14, a mixing unit for mixing water and hot water is provided.

  The lever handle 20 is operated to switch water discharge and water stop from the water discharge port 18, adjust the flow rate of the discharged water, and adjust the temperature of the discharged water. The water faucet 12 is connected with two primary water supply pipes 22 for supplying water and hot water, respectively (in FIG. 1, only one water supply pipe 22 is shown, and the other water supply pipe 22 is not shown). Have been). The water supply pipe 24 on the secondary side is for forming a water supply passage for guiding water from the mixing portion of the faucet 12 to the water discharge port 18, and a water turbine unit 25 described later is connected to the water supply pipe 24. Has been.

  The inlet-side water supply pipe 24 </ b> A allows water that has come out of the mixing unit to flow into the water turbine unit 25. The outlet side water supply pipe 24 </ b> B guides the water flowing out from the water turbine unit 25 to the outlet 18 side. That is, the water that has flowed out is led to the water outlet 18 of the faucet 12 through the outlet water supply pipe 24B, and is supplied from the water outlet 18 into the sink 10 as water from the faucet 12. One end of each of the water supply pipes 24 </ b> A and 24 </ b> B is connected to a turbine housing 26 described later of the turbine unit 25.

  FIG. 2 is a cross-sectional view of a main part of the drainage device shown in FIG. In FIG. 2, a drainage bowl 32 as a drainage recess is 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. The drainage bowl 32 has a flange portion 38 projecting radially outwardly at the upper end, and this flange portion 38 is formed by a pair of bowl mounting members 156 and 157 via seal members 153 and 154. Attached to the bottom 30 of the sink 10. Specifically, the bowl mounting member 156 is provided with a clamping portion 160, and the bowl mounting member 157 is provided with a clamping portion 162. The flange portion 38 of the drainage bowl 32 and the flange portion 159 on the sink 10 side are paired with a pair of clamping portions by the screw connection between the male screw on the outer peripheral surface of the bowl mounting member 157 and the female screw on the inner peripheral surface of the bowl mounting member 156. It is clamped from both upper and lower sides at 160 and 162. As a result, the drain bowl 32 is fixed and attached to the flange portion 159 on the sink 10 side.

  A garbage basket 42 is held inside the drain bowl 32. The garbage basket 42 is for containing garbage etc. accommodated in the drain bowl 32, and has a frame portion (here, having a substantially quadrangular cross section) 43 that forms a ring shape in the circumferential direction at the upper end portion. Have. By holding the frame portion 43 on the annular stepped portion 44 of the drainage bowl 32, the garbage basket 42 is held inside the drainage bowl 32. An impeller 88 is rotatably provided on the lower side of the garbage basket 42. In the present embodiment, a plate-like handle 163 projecting toward the center of the garbage basket 42 is provided on the frame portion 43 having a substantially square cross section of the garbage basket 42. Further, in the present embodiment, the entire waste bin 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 the present 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, a drain trap 34 is provided below the drain bowl 32.

  The drain trap 34 has an outer cylinder 36 that forms a trap body, and an inner cylinder 46 that is inserted downward from the upper side inside the outer cylinder 36, and the outer cylinder 36 and the inner cylinder 46 seal water at the bottom. 48 is held. 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. At that time, the connecting pipe 52 and the drain pipe 50 are sandwiched by the clip 56 in a state in which the flange portions 54 formed on each of the connecting pipe 52 and the drain pipe 50 are overlapped with each other, and are connected in a removal state. Here, the upper end and the lower end of the inner cylinder 46 are open, and the drainage from the sink 10 flows into the inner cylinder 46 from the upper end opening of the inner cylinder 46 and flows down, and the lower end opening. Then, it flows out between the inner cylinder 46 and the outer cylinder 36, flows out from the lateral drainage port 58 of the outer cylinder 36 to the drainage pipe 50, and is discharged outside.

  FIG. 3 is an enlarged cross-sectional view of the drain bowl and its peripheral portion shown in FIG. FIG. 4 is a further enlarged view of the bottom of the drain bowl shown in FIG.

  In the present embodiment, as shown in FIGS. 2 and 3, the opening of the bottom 60 of the drainage bowl 32 is provided at a position eccentric from the center in plan view, and the inner cylinder 46 is located inside the opening. The upper end of is arranged. That is, in the present embodiment, the drain outlet 62 of the drain bowl 32 is disposed at a position eccentric from the center of the bottom 60.

  As shown in FIG. 3, the drain 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 port 62 in the drain bowl 32, and the drainage in the drain bowl 32 is discharged downward through the drain port 62. An annular flange 64 that is radially inward is provided at the edge of the opening at the lower end of the drain bowl 32, and the upper end of the outer cylinder 36 and the upper end of the inner cylinder 46 with respect to the flange 64. And are attached.

  Trap attachment members (hereinafter simply referred to as “attachment members”) 66 and 68 are 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. Also has a circular ring shape. These attachment members 66 and 68 have flange portions 70 and 72, and the attachment members in a state where the flange portion 64 of the drainage bowl 32 is sandwiched from both the upper and lower sides via the seal member 158 by the flange portions 70 and 72. The external thread on the outer peripheral surface of 66 and the internal thread on the inner peripheral surface of the mounting member 68 are screwed together to be fixed to the flange portion 64 of the drainage bowl 32.

  Then, with the upper end portion of the inner cylinder 46 fitted to the inner peripheral surface of the mounting member 66, the locking portion 74 at the upper end of the inner cylinder 46 is locked to the stepped portion on the inner surface of the mounting member 66. The As a result, the inner cylinder 46 is attached and held to 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. More specifically, a protrusion 170 is provided at each of positions 180 ° different from the inner peripheral surface of the mounting member 66, and a spiral recess 172 corresponding to the protrusion 170 is provided on the outer peripheral surface of the inner cylinder 46. ing.

  When the inner cylinder 46 is attached, the protrusion 170 of the attachment member 66 and the opening at the lower end of the recess 172 of the inner cylinder 46 are fitted together, and the inner cylinder 46 is rotated and screwed. As a result, the inner cylinder 46 moves downward in the figure by the guiding action of the protrusion 170 and the recess 172. Then, the inner cylinder 46 is attached in a state of being axially positioned with respect to the attachment member 66 by finally engaging and engaging the engaging portion 74 at the upper end with the stepped portion of the attachment member 66. .

  On the other hand, the upper end of the outer cylinder 36 is fitted to the inner peripheral surface of the cylindrical fitting portion 76 of the attachment member 68, and flange portions 78 provided on the outer cylinder 36 and the attachment member 68 are provided. It is attached to the attachment member 68 and held by being sandwiched between the clips 80 while being overlapped with each other.

  An arm 82 extends radially inward from the upper end portion of the inner cylinder 46. A rotation shaft 86 (described later) is rotatably fitted in the inner end portion of the arm 82, and a cylindrical support portion 84 that supports the rotation shaft 86 is provided.

  The rotary shaft 86 is disposed at the center position inside the drain port 62 and vertically. The impeller 88 provided in the drain bowl 32 is connected to the upper end portion of the rotation shaft 86 so as to rotate integrally with the rotation shaft 86.

  The rotating shaft 86 having a circular cross section has an engaging shaft portion 176 having a polygonal shape at the upper end portion. The engagement shaft portion 176 is engaged with and engaged with a corresponding polygonal engagement hole 174 at the back of the insertion hole 142 in the impeller 88, and the impeller 88 is engaged by these engagement actions. The rotating shaft 86 and the rotating shaft 86 are rotated together. In addition, the specific structure of the impeller 88, the position where it is arranged, and the action will be described later.

  FIG. 5 is an enlarged cross-sectional view of the water turbine unit shown in FIG. 2 and its periphery. FIG. 6 is an exploded view showing a fitting portion between the rotating shaft and the outer cylinder according to the present embodiment.

  As shown in FIG. 5, an impeller side magnet 178 is attached to the lower end portion of the rotation shaft 86 by an attachment member 180. In the present embodiment, the magnet 178 has a disk 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. That is, the board surface is arranged in the vertical direction.

  The attachment member 180 has a main body portion 182 having a shape with a lower end opened, and a lid portion 184 that closes the opening at the lower end. The magnet 178 is sandwiched between the main body portion 182 and the lid portion 184 and attached so as to rotate integrally with the rotary shaft 86 via the attachment member 180. The attachment member 180 has a circular fitting hole 188 in the center, and a ring-shaped bearing member 190 is attached thereto.

  In the present embodiment, the outer cylinder 36 is closed at the bottom at the bottom 192. As shown in FIG. 6, the bottom portion 192 is provided with a support shaft 194 that protrudes upward at the center thereof. The mounting member 180 is fitted to the support shaft 194 through the bearing member 190 in the fitting hole 188, and the rotating shaft 86 is rotatably supported by the support shaft 194 through the mounting member 180. Yes.

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

  The water turbine housing 26 includes a housing main body 26A having an upper end opened and a lid body 26B that closes the upper end opening of the housing main body 26A. The housing main body 26 </ b> A has a cylindrical portion 202 centered on the rotation axis of the water turbine 110 and a lower bottom portion 204, and forms an outer peripheral wall of the water turbine housing 26. The lid body 26 </ b> B has an upper bottom portion 206. Here, the housing body 26A and the lid body 26B are assembled by screwing. A water drain plug 236 is provided at the bottom of the housing body 26A.

  The water wheel 110 rotatably accommodated 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. The water wheel side magnet 214 is incorporated in the water wheel 110 while being sandwiched in the vertical direction by the lower first member 208 and the upper second member 210.

  The turbine-side magnet 214 is also a disk-like shape having a through-opening at the center, and is arranged in a state where the center axis coincides with the center axis of the rotation shaft 86. The magnet 214 is vertically opposed to the impeller side magnet 178 disposed at the upper position with the turbine housing 26 forming a part of the water supply passage and the bottom 192 of the outer cylinder 36 as a partition. Yes. That is, in the axial direction of the rotating shaft 86, the impeller side magnet 178 and the water wheel side magnet 214 are disposed to face each other with a predetermined distance therebetween. Then, due to the magnetic coupling of the magnet 178 and the magnet 214, the rotational force of the water wheel 110 is transmitted to the impeller 88 in the drainage bowl 32 through the rotation shaft 86, and the impeller 88 is integrated with the water wheel 110 to be the drainage bowl 32. Rotate within. That is, the impeller 88 is forcibly rotated in the drain bowl 32 by using the force of the water flow in the water supply passage from the mixing portion of the faucet 12 to the spout 18 as a driving force.

  FIG. 7 is an exploded perspective view of the water turbine unit according to the present embodiment. As shown in FIG. 7, the water turbine 110 has a plurality of blades 212 that protrude downward from the lower surface of the first member 208 along the circumferential direction. The water turbine 110 has a cylindrical portion 215 and a shaft portion 216 at the center thereof, and the cylindrical portion 215 and the shaft portion 216 are respectively ring-shaped by the corresponding shaft portion 218 and the cylindrical portion 220 of the water wheel housing 26. The bearing member 190 is rotatably supported.

  FIG. 8 is a cross-sectional view taken along the line II in FIG. As shown in FIG. 8, the water supply inlet 126 and the outlet 128 provided in the cylindrical portion 202 of the water turbine housing 26 are respectively in the same direction as the tangential direction with respect to the circular inner peripheral surface of the cylindrical portion 202. It is provided to face. More specifically, the inflow port 126 and the outflow port 128 are 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. In the present embodiment, a nozzle 222 that is separate from the water turbine housing 26 is incorporated in the inlet 126. The nozzle 222 increases the flow rate of the water supply and ejects a water flow toward the water wheel 110, specifically toward the blades 212 of the water wheel 110. By incorporating such a nozzle 222 into the inflow port 126, the rotational speed of the water wheel 110 is increased, thereby increasing the rotational speed of the impeller 88 in the drain bowl 32, so that the washing water flow is made efficient by the impeller 88. Can be generated automatically. And thereby, the cleaning efficiency in the drain bowl 32 can be increased.

  FIG. 9 is a diagram showing the shape of the nozzle according to the present embodiment. As shown in FIG. 9, 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. 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. The nozzle 222 flows in a state where the tip surface 238 having an arc shape matches the inner peripheral surface of the cylindrical portion 202 (with the tip surface 238 positioned on the extension of the inner peripheral surface P of the cylindrical portion 202). It is installed in the inlet 126 with its orientation oriented.

  When the position of the nozzle 222 is shifted around the central axis, the tip end surface 238 forming an arc surface does not coincide with 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, as shown in FIG. 7, a corresponding concave portion 234 for positioning is provided inside the inflow port 126, and the nozzle 222 is incorporated by fitting the convex portion 231 into the concave portion 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.

  In some cases, only the opening surface 238b formed by the opening 232 at the tip of the nozzle hole 230 may be an arc surface.

  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 nozzle 222 incorporated in the inflow port 126 has the following function by being configured separately from the water turbine housing 26 in addition to the function of increasing the flow rate of the water supply flow and applying it to the water wheel 110. This will be specifically described below.

  In the present embodiment, when the flow rate of the water supply increases, the flow rate of the wastewater flowing into the drainage bowl 32 increases, and at the same time, the rotational speed of the water wheel 110 increases, and accordingly, the impeller 88 in the drainage bowl 32. Rotation speed increases. As a result, an increase in accumulated water in the drainage bowl 32 and an increase in the momentum of the washing water flow occur, and when the degree exceeds a certain limit, the drainage outflow (discharge) from the outflow opening 134 provided in the impeller 88 occurs. Despite this, the drainage in the drainage bowl 32 may overflow to the sink 10 side.

  In this case, before the impeller 88 reaches the rotational speed at which the drainage in the drainage bowl 32 overflows to the sink 10 side, the magnetic coupling (magnetic coupling) between the watermill side magnet 214 and the impeller side magnet 178 is performed. By cutting off the power transmission from the water wheel 110 to the impeller 88, it is possible to prevent overflow (backflow) of the waste water in the drain bowl 32 to the sink 10 side.

  In the present embodiment, for this purpose, the water wheel side magnet 214 and the impeller side magnet 178 are formed in a disk shape, and they are arranged in a vertically opposed state in the axial direction of the rotating shaft 86. By doing in this way, the magnetic attractive force of the waterwheel side magnet 214 and the impeller side magnet 178 can be set comparatively weakly because the area of the opposing surface becomes small, and the impeller side magnet 178 It is easy to disconnect the magnetic connection between the turbine wheel side magnet 214 and the impeller side magnet 178 by using the increase in load resistance acting on the impeller 88 at a stage before reaching the limit rotational speed.

  Specifically, when the impeller side magnet 178 reaches the set rotational speed before reaching the limit rotational speed (rotational speed), the rotation synchronization of the impeller side magnet 178 with respect to the water wheel side magnet 214 is lost. It is easy to tune the strength of the magnetic attractive force so as to stop the step-out. As a result, it is possible to prevent the drainage from overflowing to the sink 10 side due to excessive rotation of the impeller-side magnet 178.

  Here, the nozzle 222 which is separate from the water turbine housing 26 is replaced with one having a different hole diameter d of the nozzle hole 230, so that the rotation speed of the water wheel 110 and the impeller 88 can be adjusted even under the same water supply flow rate. Therefore, it also functions as a step-out control means for controlling and controlling the step-out stop time when the amount of water supply is increased.

  Next, the configuration and operation of the impeller will be described in detail. FIG. 10 (A) to FIG. 10 (C) are diagrams showing an impeller according to the present embodiment. FIG. 11 (A) and FIG. 11 (B) are diagrams for explaining the operation of the impeller according to the present embodiment.

  As shown in FIG. 5, the impeller 88 disposed inside the drain bowl 32 has a hub 130 in the center and a circular donut-shaped plate-like portion 132 in the outer periphery. A drainage outlet opening 134 penetrating in the vertical direction and communicating with the drainage port 62 is formed. 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. 10B, 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 88 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 root 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, and the thick part 140 is shown to FIG. 10 (C). Thus, it is projected downward together with the arm 136.

  The hub 130 protrudes further downward than these thick portions 140. As shown in FIG. 10B, the hub 130 is provided with a fitting hole 142 that opens downward. The fitting hole 142 has a polygonal shape, here a hexagonal shape, and a polygonal shape portion (here, a hexagonal shape) at the upper end of the rotary shaft 86 having a circular cross section is fitted therein, and the impeller 88 is rotated together with the rotary shaft 86.

  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 vanes 138 provided in the impeller 88 is disposed in the drain bowl. 32, the top surface (bottom surface) of the bottom portion 60, specifically, the entire bottom surface 60a around the drain port 62 on the bottom surface.

  In the present embodiment, when the user operates the lever handle 20 of the faucet 12 to discharge water from the water discharge port 18 and perform water work, the water discharged from the water discharge port 18 (water supplied) enters the sink 10. And 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 tends 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 work as a force for rotating the impeller 88 in one specific direction).

  At this time, the impeller 88 in the drain bowl 32 has already been 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 forced driving hits the rotation direction against the flow of the drainage, It becomes resistance of the flow of the wastewater which goes to the drain port 62, and prevents the flow-in to the drain port 62 from being suppressed.

  The impeller 88 not only acts as a resistance to the flow by the rotary blade 138, 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 outlet 62 as shown in FIG. By pushing back, the drainage is retained around the drainage port 62 by the action. In addition to such an action, the impeller 88 generates a washing water flow such as a vortex while exerting a stirring action by applying a centrifugal force to the staying water by the rotary blade 138.

  At this time, the impeller 88 according to the present embodiment includes a plate-like portion 132 having an annular shape in the circumferential direction on the outer peripheral portion, and the rotating blade 138 is provided on the lower surface of the plate-like portion 132. Therefore, the drainage between the rotary blades 138 and 138 is blocked by the annular plate-shaped portion 132 and cannot pass upward between the rotary blades 138 and 138. Centrifugal force due to the rotation of the impeller 88 is caused to act effectively, so that stagnant water of the waste water is generated around the drain port 62, and a washing water flow due to the waste water is generated well.

  The generated cleaning water stream strikes the inner surface of the drain bowl 32 vigorously, removes bacteria before reaching the slime adhering to the inner surface, and removes nutrients, oil and other dirt, 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, 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.

  Note that if the amount of waste water pushed back by the impeller 88, that is, the rotary blade 138 becomes excessive, the pushed back waste water may overflow from the drain bowl 32 to the bottom 30 side of the sink 10. In the present embodiment, when the amount of staying water becomes large, the excess staying water can flow out into the drain outlet 62 through the outflow opening 134 of the impeller 88 (at this time, the staying water is the outer peripheral plate of the impeller 88). The guide 132 is guided smoothly to the outflow opening 134 and flows out into the drain port 62), and excessive stagnant water is generated around the impeller 88, and the drainage is subjected to centrifugal force generated by the impeller 88. The phenomenon of overflowing to the bottom 30 side of the sink 10 can be prevented by the action.

  As described above, in the present embodiment, the impeller 88 is provided with the drainage outlet 134 penetrating the drainage port 62 in the vertical direction on the inner side, that is, on the inner peripheral side of the outer peripheral rotary blade 138. When a large amount of waste water is generated around the drain port 62, the excess amount can flow out to the drain port 62 through the outflow opening 134. As a result, it is possible to balance the generation of an appropriate amount of stagnant water for generating a good washing water flow and the good drainage performance. It is possible to prevent the accumulated water from overflowing to the sink 10 side due to the action of centrifugal force caused by the rotation of the impeller 88.

  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 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 faucet is used, the rotary blade 138 automatically rotates and the inside of the drain bowl 32 is cleaned.

  In the present embodiment, when the water operation 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 the water is discharged only for washing. Water can be saved compared to the case of doing.

  FIG. 12 is a diagram schematically showing the relationship between the rotational speed of the water wheel and the impeller and the amount of water in order to explain the effect according to the present embodiment. The horizontal axis in FIG. 12 is the feed water flow rate, the vertical axis is the rotational speed of the water wheel 110 and the impeller 88, X shown in the figure is the rotational speed at which the impeller side magnet 178 stops stepping out, and Y is the cleaning effect. The rotational speeds of the impellers 88 that start to exhibit the above are respectively shown. Line A shows the relationship between the water supply flow rate and the rotation speed when the nozzle 222 with a small hole diameter of the nozzle hole 230 is used, and Line B shows the water supply flow rate when the nozzle 222 with a large hole diameter of the nozzle hole 230 is used. The relationship with the rotation speed is shown.

  As shown in lines A and B in FIG. 12, the rotational speeds of the water wheel 110 and the impeller 88 increase as the feed water flow rate increases in either case. When the rotational speed exceeds Y, a cleaning effect is produced by the rotation of the impeller 88. When the rotational speed reaches X, the impeller-side magnet 178 steps out and stops rotating there. As shown by line A in FIG. 12, when a nozzle 222 having a small hole diameter is used, the rotational speed increases with a relatively small increase in the flow rate, and therefore, cleaning is performed from a relatively early stage (at a stage where the feed water flow rate is low). In addition to the effect, the feed water flow rate when the impeller 88 reaches the rotational speed Y and stops stepping out is also relatively small compared to the case indicated by B. On the other hand, when the nozzle 222 having a large hole diameter is used, the flow rate of the jet flow of the feed water is not so high as compared with the case where the nozzle 222 having a small hole diameter is used. In addition, the flow rate of the water supply at the time of stopping the step-out is increased.

  When the nozzle 222 having such a small hole diameter is used, the cleaning effect due to the rotation of the impeller 88 appears at an early stage when the feed water flow rate is increased as shown in the line A, that is, even if the flow rate is small, The timing at which the magnet 178, that is, the impeller 88 reaches the rotational speed at which the step-out is stopped is also early. On the other hand, when the nozzle 222 having a large hole diameter is used, the cleaning effect is delayed as shown in the line B, but the time to reach the step-out stop rotation speed is also delayed, and the feed water flow rate causing the cleaning effect The range (R2) is wider than the range (R1) shown in the line A, and occurs only at a large flow rate.

  For example, in the kitchen, there are various people who use the faucet 12 with a large amount of water supply on a daily basis, and some people use the faucet 12 with a small amount of water supply. Then, by replacing the nozzle 222 accordingly, the step-out stop timing of the impeller 88 can be controlled according to the magnitude of the feed water flow rate to be used. In addition to the replacement of the nozzle, the water supply to be used can be replaced with a turbine with a different number of blades, or with a different material for the shaft portion 216 of the turbine 110 to change the friction during rotation of the turbine. It can meet the needs of users with different flow rates.

(Second Embodiment)
In the first embodiment, the range of the feed water flow rate that achieves both the timing of step-out stop and the cleaning effect is realized by replacement of parts and the like. However, in the drainage device according to the first embodiment, when the impeller is replaced with a strong impeller, the desired cleaning effect cannot be obtained because the cleaning effect display line is not exceeded at a small flow rate. On the other hand, when the impeller is replaced with a weak resistance, the step-out stop line is exceeded at a large flow rate, and the rotation of the impeller is lowered, so that a desired cleaning effect cannot be obtained. This is the same even when parts other than the impeller, for example, a nozzle and a water wheel are appropriately replaced.

  Therefore, the present inventors have conducted further studies, and by providing a plurality of water turbine units that are linked to the impeller, a wide range of water supply flow rates that cannot be handled by a single water turbine unit without exchanging special parts. I came up with the point that can respond to. Hereinafter, several embodiments will be described.

  FIG. 13 is a schematic diagram showing an outline of a drainage device according to the second embodiment. The drainage device 250 according to the second embodiment rotates in the vicinity of the drainage bowl 32 partially recessed inside the sink 10, the drainage port 62 formed in the bottom of the drainage bowl 32, and the drainage port 62. Water supply for supplying water to be used in the sink 10 and the impeller 88 as a rotating body configured to generate a cleaning water flow and to block the flow of drainage flowing downward from the drain port 62 according to the number of rotations. A mechanism 252.

  In the water supply mechanism 252, water from the primary side water supply pipe 254 passes through the secondary side water supply pipes 256 and 258 through the mixing unit and is discharged from the first water faucet 260. Similarly, water from the primary side water supply pipe 262 passes through the secondary side water supply pipes 264 and 266 through the mixing section and is discharged from the second water faucet 268.

  The first water turbine 270 is provided between the water supply pipe 256 and the water supply pipe 258 which are the first path. The second water turbine 272 is provided between the water supply pipe 264 and the water supply pipe 266 that are the second path. Further, the drainage device 250 includes a rotational force transmission mechanism 274 that transmits the rotational force of at least one of the first water wheel 270 and the second water wheel 272 to the impeller 88.

  FIG. 14 is a cross-sectional view of an essential part for explaining an example of the rotational force transmission mechanism. The drainage device according to the first embodiment is substantially the same except that two water wheels are provided. In the present embodiment, another water turbine 276 is provided between the mounting member 180 connected to the impeller 88 via the rotating shaft 86 and the water turbine 110.

  The rotational force transmission mechanism 274 includes an impeller side magnet 178 provided so as to rotate integrally with the impeller 88, a water wheel side magnet 278 provided so as to rotate integrally with the water wheel 276, and a water wheel. And a turbine-side magnet 214 provided so as to rotate integrally with 110. Here, the impeller side magnet 178, the water wheel side magnet 278, and the water wheel side magnet 214 are disposed along the vertical direction of the drainage device 250 at intervals at which a magnetic attractive force capable of transmitting torque to adjacent magnets works. . Accordingly, the rotational force is transmitted while reliably separating the secondary water supply pipes 256 and 258 to the first water faucet 260 and the secondary water supply pipes 264 and 266 to the second water faucet 268. it can. In the second embodiment, the case where the magnets included in the rotational force transmission mechanism 274 are arranged along the vertical direction of the drainage device 250 is described. However, the arrangement of the magnets is the rotational force transmission mechanism. As long as this function can be realized, the present invention is not limited to such a case. For example, you may arrange | position each magnet along the left-right direction (circumferential direction) of a drainage device with the space | interval which the magnetic attraction force which can transmit torque to an adjacent magnet works.

  FIG. 15 is a diagram schematically illustrating the relationship between the number of rotations of the water wheel and the impeller and the amount of water according to the second embodiment.

  For example, the appropriate flow rate of the first faucet 260 is 8 to 11 [L / min] (range R4 in FIG. 15), and the proper flow rate of the second faucet 268 is 3 to 5 [L / min] (in FIG. 15). Consider the case of range R3). When the drainage device 250 has a feed water flow rate of 5 to 12 [L / min] (range R2 in FIG. 15), the first water turbine 270 configured to rotate the impeller 88 within an appropriate range, and the feed water flow rate Is provided with a second water wheel 272 configured to rotate within an appropriate range when 3 to 6 [L / min] (range R1 in FIG. 15). In the range of 3 to 12 [L / min], the impeller 88 can be rotated at an appropriate rotational speed. Here, the first water turbine 270 is configured to have a different rotational speed at the same water supply flow rate as compared to the second water turbine 272.

  As described above, if either the first water wheel 270 or the second water wheel 272 is properly supplied, the appropriate rotational force is transmitted to the rotating body, and for a wide range of water supply flow rates, A wash water flow can be efficiently generated in the drain bowl 32.

  In addition, the drainage device 250 is configured so that the secondary water supply pipes 256 and 258 to the first water faucet 260 and the secondary water supply pipes 264 and 266 to the second water faucet 268 have water passing through one side. Water is supplied to the sink 10 without passing through the other. Thereby, for example, it becomes easy to use a water wheel suitable for each of a plurality of water taps connected to each water supply pipe.

(Third embodiment)
FIG. 16 is a schematic diagram showing an outline of a drainage device according to the third embodiment. In addition, about the structure similar to the drainage apparatus which concerns on the above-mentioned embodiment, the same code | symbol is attached | subjected and description is abbreviate | omitted suitably.

  The drainage device 280 according to the third embodiment has a configuration in which a primary water supply pipe 254 is branched in the middle, and a part of water flows into a second path 282 toward the second faucet 268. It has become. A second water wheel 272 is provided on the second path 282. A reformer 284 is provided in the middle of the water that has passed through the second water wheel 272 toward the second faucet 268, and purified water and sterilized water are generated. As the reformer 284 operates at a lower flow rate, the size can be reduced and the cost can be reduced. Therefore, the drainage device 280 according to the present embodiment is a second water turbine 272 that rotates within an appropriate range even when the feed water flow rate is a low flow rate (for example, about 0.5 [L / min]). Is selected.

  FIG. 17 is a diagram schematically illustrating the relationship between the number of rotations of the water wheel and the impeller and the amount of water according to the third embodiment. As shown in FIG. 17, the first faucet 260 has a proper flow rate of 3 to 6 [L / min] (range R2 in FIG. 17), and the second faucet 268 has a proper flow rate of 0. .5 [L / min] around (range R1 in FIG. 17) may be used.

  In addition, the drainage device 280 does not mix the first faucet 260 from which water passed through the first path (water supply pipes 254, 256) is discharged and the water passed through the second path 282 with the water passed through the first path. A second faucet 268 to be discharged. Thereby, the faucet from which an application and an appropriate flow rate differ can be used. In particular, when a reforming faucet is used as the second faucet 268, a water supply path in which water that has passed through a plurality of paths does not merge is preferable in order to prevent cross connection.

(Fourth embodiment)
FIG. 18 is a schematic diagram showing an outline of a drainage device according to the fourth embodiment. In addition, about the structure similar to the drainage apparatus which concerns on the above-mentioned embodiment, the same code | symbol is attached | subjected and description is abbreviate | omitted suitably.

  In the drainage device 290 according to the fourth embodiment, the water supply pipe 256 on the secondary side is branched through the three-way valve 292 in the middle, and the water that has passed through the water supply pipe 256A rotates the first water turbine 270. The water that has passed through the water supply pipe 256 </ b> B rotates the second water turbine 272. Thereafter, the water that has passed through the water wheel of the first water wheel 270 and the water that has passed through the second water wheel 272 merge via the water supply pipes 258A and 258B, respectively, and are then discharged from the first water faucet 260.

  As described above, the water supply mechanism 252 according to the present embodiment includes the three-way valve 292 as an adjustment valve that adjusts the flow rate of water flowing to the first path (water supply pipes 256A and 258A) and the second path (256B and 258B). , Detecting means for detecting flow rate information correlated with the flow rate of water discharged from the first water faucet 260 (for example, a flow rate sensor or a sensor for detecting the opening degree of the faucet, not shown), and the detected flow rate information And a control means (not shown) for controlling the opening / closing switching or the opening degree of the three-way valve 292. Thereby, an appropriate cleaning effect can be obtained by drainage from a small flow rate to a large flow rate discharged from one water faucet.

  FIG. 19 is a diagram schematically showing the relationship between the number of rotations of the water wheel and the impeller and the amount of water according to the fourth embodiment.

  For example, a case where the appropriate flow rate of the first faucet 260 is 2 to 10 [L / min] (range R3 in FIG. 19) will be considered. When the drainage device 290 has a feed water flow rate of 4 to 10 [L / min] (range R2 in FIG. 19), the first water turbine 270 configured to rotate the impeller 88 within an appropriate range, and the feed water flow rate 2-5 [L / min] (range R1 in FIG. 19), the second water turbine 272 configured to rotate the impeller 88 within an appropriate range is provided. In the range of 2 to 10 [L / min], the impeller 88 can be rotated at an appropriate rotational speed. In this way, one water supply route is branched in the middle, and water is flowed in an appropriate distribution toward a plurality of water turbines, so that proper washing is performed with drainage from a small flow rate to a large flow rate discharged from one faucet. An effect is obtained.

  As described above, the present invention has been described with reference to the above-described embodiments. However, the present invention is not limited to the above-described embodiments, and the configurations of the embodiments are appropriately combined or replaced. Those are also included in the present invention. Further, it is possible to appropriately change the combination and processing order in each embodiment based on the knowledge of those skilled in the art and to add various modifications such as various design changes to each embodiment. Embodiments to which is added can also be included in the scope of the present invention.

  The present invention can be used for a sink equipped with a sink.

  10 Sink, 12 Water faucet, 22, 24 Water supply pipe, 25 Water wheel unit, 26 Water wheel housing, 32 Drain bowl, 36 Outer tube, 46 Inner tube, 86 Rotating shaft, 88 impeller, 110 Water wheel, 138 Rotating blade, 178 blade Car side magnet, 180 mounting member, 214 water wheel side magnet, 250 drainage device, 252 water supply mechanism, 254, 256, 258 water supply pipe, 260 first water faucet, 268 second water faucet, 270 first water wheel, 272 2nd water wheel, 274 rotational force transmission mechanism, 278 water wheel side magnet, 284 reformer, 290 drainage device, 292 three-way valve.

Claims (7)

A recess for drainage partially recessed inside the water receiving tank;
A drain outlet formed at the bottom of the drain recess,
A rotating body configured to generate a washing water flow by rotating in the vicinity of the drain port, and to block the flow of drain water downward from the drain port according to the number of rotations,
A water supply mechanism for supplying water used in the water receiving tank;
A first water wheel provided in a first path in the middle of the water supply mechanism, and rotated by a flow of water in the first path;
A second water wheel provided in a second path different from the first path in the middle of the water supply mechanism, and rotated by the flow of water in the second path;
A rotational force transmission mechanism for transmitting a rotational force of at least one of the first water wheel and the second water wheel to the rotating body;
A drainage device comprising:   The drainage device according to claim 1, wherein the first path and the second path are configured such that water that has passed through one of the first path and the second path is supplied to a water receiving tank without passing through the other. The rotational force transmission mechanism is
A rotating body magnet provided to rotate integrally with the rotating body;
A first turbine magnet provided to rotate integrally with the first turbine,
A second turbine magnet provided to rotate integrally with the second turbine,
3. The rotating body magnet, the first water wheel magnet, and the second water wheel magnet are arranged at intervals at which a magnetic attractive force capable of transmitting torque to adjacent magnets works. The drainage device described.   The drain according to any one of claims 1 to 3, wherein the first water turbine is configured to have a different rotational speed at the same water supply flow rate as compared to the second water turbine. apparatus. The water supply mechanism is
A first faucet from which water passed through the first path is discharged;
The drainage according to any one of claims 1 to 4, further comprising: a second faucet that discharges the water that has passed through the second path without being mixed with the water that has passed through the first path. apparatus.   5. The water supply mechanism according to claim 1, wherein the water supply mechanism includes a faucet that discharges water that has passed through the first path and water that has passed through the second path. Drainage equipment. The water supply mechanism is
An adjustment valve for adjusting the flow rate of water flowing to the first path and the second path;
Detection means for detecting flow rate information correlated with the flow rate of water discharged from the faucet;
Control means for controlling opening / closing switching or opening of the regulating valve based on the detected flow rate information;
The drainage device according to claim 6, comprising:

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