JP2008274615A - Toilet device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a toilet device capable of generating and flowing bubble-including water in the proper timing with a compact constitution. <P>SOLUTION: This toilet device is characterized by having a toilet bowl, a storage tank for storing wash water supplied to the toilet bowl, and a bubble generator for mixing bubbles in the water stored in the storage tank, that is, the bubble generator having a circulating pump for circulating liquid in the storage tank by sucking in and delivering the liquid between the pump and the inside of the storage tank, a suction flow passage for sucking the liquid in the storage tank in the circulating pump, a dissolving tank for pressurizing and dissolving gas in the liquid supplied from the circulating pump, a delivery nozzle for delivering the liquid in the dissolving tank in the storage tank together with the fine bubbles and a circulating communicating flow passage communicating the inside of the dissolving tank with the suction flow passage and returning a part of the liquid of pressurizing and dissolving the gas by being supplied in the dissolving tank to the suction flow passage. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a toilet device, and more particularly, to a toilet device capable of flowing water containing bubbles.

  In recent years, in the toilet environment, it has been desired to improve the cleaning effect of the cleaning water, to reduce the cleaning water, and to improve the cleanability of toilets and the like. In response to such a demand, there is a direction to review the basic configuration of the toilet body and to solve it by ingenuating the toilet bowl shape and the way of flushing water.

On the other hand, an improvement in the cleaning effect is expected by flowing water containing bubbles as cleaning water. An example of a method for generating water containing bubbles is a pressure dissolution method (for example, Patent Document 1). The fine bubble generating device described in Patent Document 1 includes a circulation pump for sucking bath water (liquid) from a bathtub (storage tank) in a state of being mixed with air (gas), and a state of being mixed with air from the circulation pump. And a dissolving tank for pressurizing and dissolving air in the bath water supplied in (1). Then, the bath water mixed with air sucked from the inside of the bathtub by the driving of the circulation pump is sprayed toward the liquid level of the bath water temporarily stored in the dissolution tank in the dissolution tank. Air is pressurized and dissolved inside. Then, the bath water temporarily stored in the dissolution tank is then discharged from the dissolution tank into the discharge channel, and when discharged from the downstream end of the discharge channel into the bathtub, Bubbles were to be deposited.
JP 2001-347145 A

  In order to flow water containing air bubbles into a toilet or urinal of a toilet, it is necessary to form a compact device for generating water containing air bubbles. In addition, original devices are required for the timing of generating water containing bubbles and the timing of flowing the water to the toilet.

  The present invention provides a toilet device capable of generating and flowing water containing bubbles in a compact configuration at an appropriate timing.

  According to one aspect of the present invention, a toilet, a storage tank that stores wash water to be supplied to the toilet, and a bubble generation device that mixes bubbles into the water stored in the storage tank, the storage tank A circulation pump for sucking and discharging the liquid in the storage tank and circulating it, a suction flow path for sucking the liquid in the storage tank into the circulation pump, and a liquid supplied from the circulation pump A dissolution tank that pressurizes and dissolves a gas therein, a discharge nozzle that discharges the liquid in the dissolution tank into the storage tank together with the fine bubbles, and the dissolution tank and the suction flow path are communicated with each other. There is provided a toilet device comprising: a bubble generation device having a circulation communication channel that returns a part of a liquid that is supplied into a tank and whose gas is dissolved under pressure to a suction channel. The

  ADVANTAGE OF THE INVENTION According to this invention, the toilet apparatus which can produce | generate and flow the water containing a bubble by appropriate timing with a compact structure is provided.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. In addition, in each drawing, the same code | symbol is attached | subjected to the same component.

  FIG. 1 is a schematic view illustrating the appearance of a toilet apparatus according to this embodiment. FIG. 1 (a) is a perspective view seen from the front left side obliquely, and FIG. 1 (b) is from the front right side obliquely. FIG. The direction of the toilet device is indicated by arrows in FIG.

  Moreover, FIG. 2 is the schematic diagram which looked at the storage tank inside from the front.

  As shown in FIGS. 1A and 1B, the toilet apparatus 800 according to the present embodiment includes a toilet bowl 900, a low tank 920 that supplies flush water to the toilet bowl 900, and a toilet seat apparatus 810. A row tank lid 921 that serves as a cover is attached to the row tank 920. A toilet seat (not shown) and a toilet lid 820 are rotatably supported on the toilet seat device 810. Furthermore, the toilet seat device 810 may have a built-in cleaning mechanism that has a built-in water discharge nozzle that can be moved forward and backward, and that can be cleaned by spraying water toward the “butt” of the user sitting on the toilet seat. In the present specification, the term “water” includes not only cold water but also hot water.

  The low tank 920 is installed behind the toilet bowl 900 and above the side panel 950, and a fine bubble generating device (bubble generating device) 11 is built therein. That is, the fine bubble generator 11 cannot be seen from the outside.

  As shown in FIG. 2, the low tank 920 is provided with a cleaning handle lever 925, a drain port 930, and a water supply port 931. A storage tank 12 capable of storing toilet cleaning water W is provided inside the storage tank 12, and a float 932 connected to the ball tap 933 is additionally provided. The float 932 has a hollow inside and has a specific gravity lighter than that of the water W, so that it floats on the water W. The level of the float 932 changes according to the water level of the water stored in the storage tank 12, and the water supply of the storage tank 12 is controlled from the water supply port 931 by the ball tap 933 according to this.

  When the user rotates the washing handle 925, the ball chain 934 pulls up the on-off valve 934, and the water W stored in the storage tank 12 is discharged from the drain port 930 vigorously, and the toilet bowl 900 can be washed. Further, after the cleaning, the ball tap 933 is opened in response to the decrease in the level of the float 932, and new water W is supplied into the storage tank 920 from the water supply port 931. When the water level of the storage tank 12 rises, the level of the float 932 floating in the water W also rises. When the water level rises to a certain amount, the ball tap 933 connected to the float 932 closes and water supply is stopped.

  Next, the microbubble generator 11 accommodated in the low tank 920 will be described with reference to FIGS. 3 to 12, “up and down direction” and “left and right direction” indicate the up and down direction and the left and right direction in FIG. 3 (indicated by arrows in the figure).

  As shown in FIG. 3, the microbubble generator 11 of this specific example includes a circulation pump 13 for sucking water W as a liquid from the storage tank 12, and water W supplied from the circulation pump 13. And a dissolution tank 14 for dissolving air as gas under pressure. Further, the fine bubble generating device 11 has a first water absorption pipe 15 whose upstream end is disposed near the bottom of the storage tank 12 and a second water absorption pipe 16 whose downstream end is connected to the circulation pump 13. Is provided.

  A flow rate increasing device 17 is disposed between the downstream end of the first water absorption conduit 15 and the upstream end of the second water absorption conduit 16, and the first water absorption conduit is disposed in the flow increase device 17. A first flow path 18 that communicates the inside of 15 and the second water absorption pipe 16 is formed to extend in the left-right direction. And when the circulation pump 13 drives, the water W in the storage tank 12 is in the circulation pump 13 via the 1st water absorption line 15, the 1st flow path 18 of the flow volume increasing device 17, and the 2nd water absorption line 16. To be inhaled. Therefore, in this specific example, the first water intake pipe 15, the first flow path 18, and the second water intake pipe 16 constitute a suction flow path for sucking the water W in the storage tank 12 into the circulation pump 13. Has been. Note that a water absorption part 19 for absorbing water W from the storage tank 12 is provided at the upstream end of the first water absorption pipe line 15. “1 liter / min” of water W is absorbed. Note that a filter (not shown) is provided in the water absorption portion 19, and it is restricted that foreign matters such as dust are sucked into the circulation pump 13 together with the water W.

  Further, in the flow rate increasing device 17, a valve chamber 20 (see FIG. 4) located at an intermediate portion in the left-right direction of the first flow path 18, and a second flow extending upward from the upper inner surface of the valve chamber 20. A passage 21 is formed, and a valve mechanism 22 is provided in the valve chamber 20. As shown in FIG. 4, the valve mechanism 22 includes a valve body 23 that can be in close contact with the upper surface of the valve chamber 20 so as to close the lower end of the second flow path 21, and the valve body 23 above (that is, A coil spring 24 is provided as urging means for urging toward the second flow path 21 side. The valve body 23 is always disposed at a valve closing position (position shown in FIG. 4) that closes the second flow path 21 by the biasing force of the coil spring 24, and the pressure in the second flow path 21 is set in advance. When the pressure reaches a predetermined pressure (for example, 2 KPa) or more, it is displaced against the biasing force of the coil spring 24 to the valve opening position (that is, the position below the valve closing position) that opens the second flow path 21. Yes.

  As shown in FIG. 3, the circulation pump 13 is connected to an upstream end of a discharge pipe 25 for discharging (discharging) the water W sucked into the circulation pump 13 out of the circulation pump 13. The downstream end of the discharge pipe 25 is connected to the lower end of the dissolution tank 14, and the water W in the circulation pump 13 is supplied into the dissolution tank 14 through the discharge pipe 25. ing. In the dissolution tank 14, air is pressurized and dissolved in the water W.

  Connected to the dissolution tank 14 is an upstream end of a water discharge pipe 26 for discharging water W in the dissolution tank 14 (that is, water W in which air is sufficiently dissolved under pressure) to the storage tank 12 side. The downstream end of the water discharge pipe 26 is disposed in the water W of the storage tank 12. Further, a foam nozzle 27 as a discharge nozzle is provided at the downstream end of the water discharge pipe 26. Therefore, fine water bubbles are precipitated from the water W in which the air is pressurized and dissolved in the dissolution tank 14 when passing through the foam nozzle 27, and the fine bubbles together with the water W enter the storage tank 12 from the foam nozzle 27. To be released.

  Further, in the water discharge pipe 26, a drain pipe 28 as a liquid discharge flow path is branched from a midway portion between the upstream end and the downstream end, and the downstream end of the drain pipe 28 is a storage tank. 12 is arranged. A drainage on-off valve 29 (for example, a solenoid valve) is provided on the drainage pipe 28 as a discharge valve for opening and closing the inside of the drainage pipe 28. The drainage on-off valve 29 is controlled by a control described later. An opening / closing operation is performed based on a control command of the device 75 (see FIG. 7).

  Further, the dissolution tank 14 is connected to the flow rate increasing device 17 through a connection pipe line 30 having an inverted T shape. That is, as shown in FIG. 3, the left end (one end) 31 of the connection pipe 30 is connected to the dissolution tank 14, and the right end (other end) 32 of the connection pipe 30 is connected to the flow rate increasing device 17. It is connected. Further, an intake opening / closing valve 34 (for example, an electromagnetic valve) as an intake valve is provided at the upper end portion 33 of the connection pipe line 30. The intake opening / closing valve 34 is a control device 75 (see FIG. 7) described later. Open / close operation is performed based on the control command. Therefore, in the present specific example, the connection pipe line 30 constitutes a gas suction passage capable of supplying air from the outside (atmosphere) into the dissolution tank 14 when the intake on-off valve 34 is opened.

  Next, the dissolution tank 14 of this specific example will be described below with reference to FIGS.

  As shown in FIG. 3, the dissolution tank 14 includes a tank body 42 including a lower housing 40 having an opening 40 a in the upper portion and an upper housing 41 having an opening 41 a in the lower portion. Each opening 40a, 41a of both the housings 40, 41 has a substantially circular shape that can be joined to each other. The upper housing 41 is joined and fixed to the lower housing 40 from above so that the opening 41a faces the opening 40a of the lower housing 40, whereby the tank body 42 of the dissolution tank 14 is formed.

  A through hole 43 is formed through the central portion of the lower housing 40 in the vertical direction, and the downstream end of the discharge pipe 25 is connected to the formation portion of the through hole 43 below the lower housing 40. ing. Further, on the upper side of the lower housing 40, an insertion portion 44 having a boss shape communicating with the through hole 43 is formed.

  As shown in FIGS. 3 and 5, the upper half of the lower housing 40 has its left half turned up. That is, the upper surface of the left half of the lower housing 40 (that is, the bottom surface of the left half of the dissolution tank 14, hereinafter referred to as “left bottom surface 40 b”) is the upper surface of the right half of the lower housing 40 (that is, The bottom surface of the right half of the dissolution tank 14 is hereinafter referred to as the “right bottom surface 40c”). The lower housing 40 is formed with a first housing flow path 45 extending from the left bottom surface 40b of the dissolution tank 14 toward the water discharge pipe 26, and the water W in the dissolution tank 14 flows through the first housing flow. Water is discharged (discharged) into the storage tank 12 through the passage 45 and the water discharge pipe 26.

  The lower housing 40 is formed with a second housing channel 46 extending from the right bottom surface 40 c of the dissolution tank 14 toward the left end 31 of the connection pipe 30. That is, the second housing flow path 46 is formed at a position where the through hole 43 is interposed between the second housing flow path 46 and the first housing flow path 45 in the lower housing 40. The inside of the dissolution tank 14 communicates with the first flow path 18 (suction flow path) through the second housing flow path 46, the connection pipe line 30, and the second flow path 21 in the flow rate increasing device 17. Therefore, in this specific example, the inside of the dissolution tank 14 and the first channel 18 (suction channel) are communicated by the second housing channel 46, the connecting pipe 30, and the second channel 21 in the flow rate increasing device 17. A circulation communication channel is formed.

  In this specific example, the right bottom surface 40 c of the dissolution tank 14 is located above the left bottom surface 40 b of the dissolution tank 14. Therefore, the communication part between the dissolution tank 14 and the second housing flow path 46 (circulation communication flow path) is located above the communication part between the dissolution tank 14 and the first housing flow path 45 (discharge flow path). Is formed.

  As shown in FIG. 3, the upper housing 41 has a shape bulging upward so as to form a dome shape. The upper housing 41 is formed such that the inner surface of the upper wall portion 47, that is, the upper wall inner surface 48 becomes a concave hemispherical surface (curved surface having a concave shape), and the inner surface of the side wall 49, that is, the side wall inner surface 50. It is formed so as to form a cylindrical inner surface.

  Further, in the dissolution tank 14, air is pressurized and dissolved in the water W supplied from the circulation pump 13, and the water W in which the air is pressurized and dissolved is temporarily stored in the dissolution tank 14. That is, the lower region in the dissolution tank 14 constitutes a water storage region 14A as a liquid storage region for temporarily storing water W in which air is dissolved under pressure, while the water storage region 14A in the dissolution tank 14 is formed. An air storage region 14B as a gas storage region for storing air is configured by the region on the upper side.

  An injection nozzle 60 for injecting water W toward the upper wall inner surface 48 in the dissolution tank 14 is attached to the insertion portion 44 of the lower housing 40. The injection nozzle 60 is a cylindrical body in which a nozzle hole 62 is formed in the upper end portion 61, and the lower end portion 63 is fitted into the insertion portion 44, so that the injection nozzle 60 is erected in the lower housing 40. It is fixed. Further, an in-nozzle flow path 64 in which water W flows from the lower end portion 63 of the injection nozzle 60 toward the nozzle hole 62 of the upper end portion 61 is formed in the injection nozzle 60 along the vertical direction. In this specific example, the upper end 61 of the injection nozzle 60 is disposed in the air storage area 14 </ b> B in the dissolution tank 14.

  As shown in FIG. 6, the lower end portion 65 of the nozzle hole 62 formed in the upper end portion 61 of the injection nozzle 60 (that is, the portion communicating with the nozzle flow path 64 in the nozzle hole 62) flows most in the nozzle hole 62. The road cross-sectional area is small. The upper end portion 66 of the nozzle hole 62 is formed so that the flow path cross-sectional area gradually increases upward, and the upper end portion 66 of the nozzle hole 62 opens to the end surface of the upper end portion 61 of the injection nozzle 60. ing. The opening of the upper end portion 66 of the nozzle hole 62 formed on the end surface of the upper end portion 61 of the injection nozzle 60 is hereinafter referred to as “nozzle opening 68”.

  Further, an intermediate portion 67 between the lower end portion 65 and the upper end portion 66 in the nozzle hole 62 is formed so that the flow path cross-sectional area is larger than that of the lower end portion 65. Then, the water W that has flowed upward in the nozzle flow path 64 in the spray nozzle 60 flows upward in the nozzle hole 62 and flows from the nozzle opening 68 to the upper wall inner surface 48 of the upper housing 41. It is designed to be jetted towards. Accordingly, in this specific example, the nozzle flow path 64 and the nozzle hole 62 constitute a liquid flow path in which the water W flows toward the nozzle opening 68.

  A nozzle communication channel 69 having a channel cross-sectional area smaller than the channel cross-sectional area of the lower end 63 of the nozzle hole 62 is formed at the upper end 61 of the injection nozzle 60. That is, the nozzle communication channel 69 is formed so as to extend along the radial direction of the injection nozzle 60 between the lower end portion 65 and the intermediate portion 67 of the nozzle hole 62, and is an air storage region in the dissolution tank 14. 14B and the nozzle hole 62 communicate with each other on the upstream side (downward side) in the flow direction of the water W from the nozzle opening 68 in the nozzle hole 62. When the flow passage cross-sectional area of the nozzle hole 62 is viewed with the communication portion between the nozzle hole 62 and the nozzle communication flow passage 69 as a boundary, the flow passage breakage on the downstream side (upper side) from the communication portion. The area is larger than the cross-sectional area of the flow path on the upstream side (lower side) of the communication part.

Next, a configuration for controlling the microbubble generator 11 of this specific example will be described below with reference to FIG.
As shown in FIG. 7, the fine bubble generating device 11 of this specific example can be controlled by a control device 75 that comprehensively controls the entire device. The control device 75 is appropriately provided with an input side interface, an output side interface, a digital computer including a CPU, a ROM, a RAM, and the like, and a drive circuit for driving the circulation pump 13. In addition to an input unit (not shown) for inputting a control signal from an external device, an operation unit 76 for a user to perform various operations is electrically connected to the input side interface of the control device 75. May be. In this case, a signal corresponding to a user operation is input from the operation unit 76 to the control device 75 via the input side interface.

  Further, the circulation pump 13, the drain on / off valve 29, and the intake on / off valve 34 are electrically connected to the output side interface of the control device 75. For example, when a control signal is input from an external device, or when the user operates the operation unit 76 to generate fine bubbles in the water W in the storage tank 12, the control device 75 turns the circulation pump 13 on. Drive. In addition, when a control signal is input from an external device or when the user operates the operation unit 76 in order to discharge the water W temporarily stored in the dissolution tank 14 to the outside of the dissolution tank 14, the control device 75 Then, after the drive of the circulation pump 13 is temporarily stopped, the drain on-off valve 29 and the intake on-off valve 34 which are in the closed state are opened. Therefore, in this specific example, the control device 75 functions as valve control means for controlling the opening / closing drive of the drain on / off valve 29 and the intake on / off valve 34.

Next, the operation of the fine bubble generating device 11 in this specific example will be described below.
Now, when the control device 75 starts control to drive the circulation pump 13 in a state where the water absorption part 19 and the foaming nozzle 27 are disposed in the water W of the storage tank 12, the drive of the circulation pump 13 is started. Then, the water W in the storage tank 12 is sucked into the circulation pump 13 via the water absorption part 19, the first water absorption pipe 15, the first flow path 18 of the flow rate increasing device 17 and the second water absorption pipe 16. . Then, the water W sucked into the circulation pump 13 is discharged into the discharge pipe 25 and flows into the through hole 43 of the lower housing 40 from the downstream end of the discharge pipe 25, and is injected from the through hole 43. It flows into the nozzle 60.

  Then, in the injection nozzle 60, the inflowing water W flows into the nozzle hole 62 of the upper end portion 61 through the nozzle flow path 64, and is injected from the nozzle opening 68 toward the upper wall inner surface 48 of the upper housing 41. Is done. At this time, the upper end portion 66 of the nozzle hole 62 is formed so that its cross-sectional area gradually increases from the lower side to the upper side. It sprays so that it may spread over the wall inner surface 48 whole.

  When the water W flows in the nozzle hole 62 from below to above (nozzle opening 68), a negative pressure is generated in the nozzle hole 62 based on the flow of the water W. Therefore, in the nozzle hole 62, the air is stored in the air storage region 14 </ b> B in the dissolution tank 14 through the nozzle communication channel 69 that communicates with the nozzle hole 62 on the upstream side in the flow direction of the water W from the nozzle opening 68. The air sucked through the nozzle communication channel 69 is mixed with the water W flowing in the nozzle hole 62 by the sucked air being sucked. Then, such air-mixed water W is jetted from the nozzle opening 68 toward the upper wall inner surface 48 of the upper housing 41. Therefore, compared with the case where the water W not mixed with air is ejected from the nozzle opening 68, the water W is more efficiently as much as the contact area between the water W ejected from the nozzle opening 68 and the air becomes wider. It is possible to dissolve air under pressure.

  Then, the water W that is sprayed from the spray nozzle 60 and in which the air is pressurized and dissolved is temporarily stored in the dissolution tank 14. A part of the temporarily stored water W flows into the second flow path 21 of the flow rate increasing device 17 through the second housing flow path 46 and the connection pipe line 30. At this time, since the right bottom surface 40 c is located above the left bottom surface 40 b in the dissolution tank 14, the second flow path 21 is in the water W temporarily stored in the dissolution tank 14. Among the contained bubbles, bubbles that cannot be completely dissolved under pressure in the water W may flow in together with the water W.

  When the pressure in the second flow path 21 (that is, the pressure in the dissolution tank 14) is less than the predetermined pressure, the second flow path 21 is driven by the valve element 23 based on the upward biasing force by the coil spring 24. Since it is blocked, the water W in the second flow path 21 is restricted from flowing into the first flow path 18. However, when the water W continues to be supplied into the dissolution tank 14 and the pressure in the dissolution tank 14 increases, the liquid pressure of the water W in the second flow path 21 communicating with the dissolution tank 14 also increases. When the pressure in the dissolution tank 14 becomes equal to or higher than the predetermined pressure, the valve body 23 moves from the closed position against the upward biasing force of the coil spring 24 by the hydraulic pressure of the water W in the second flow path 21. Displaces to the valve open position. As a result, a part of the water W in which the air is pressurized and dissolved in the dissolution tank 14 flows into the first flow path 18 through the second flow path 21 and is sucked again into the circulation pump 13. It is supplied again from the circulation pump 13 into the dissolution tank 14 via the injection nozzle 60.

  That is, the circulation pump 13 in this specific example mixes the water W sucked from the storage tank 12 through the water absorption part 19 with the water W sucked from the dissolution tank 14 through the connection line 30. The amount of water W sucked into the circulation pump 13 is increased, and the water W thus increased is supplied into the dissolution tank 14. Therefore, the amount of water W injected from the injection nozzle 60 per unit time is larger than that in the configuration in which the circulation pump 13 does not re-suction part of the water W temporarily stored in the dissolution tank 14. Become more. Therefore, a part of the water W temporarily stored in the dissolution tank 14 is circulated many times between the circulation pump 13 and the dissolution tank 14, thereby adding air to the water W in the dissolution tank 14. Increases pressure dissolution efficiency.

  Here, when the predetermined pressure is set to a relatively low value (for example, 1 KPa), the valve body 23 is displaced from the valve closing position to the valve opening position while the pressure in the dissolution tank 14 is not sufficiently increased. For this reason, the pressure dissolution efficiency of the air into the water W in the dissolution tank 14 becomes lower than in the case of this specific example. On the other hand, when the predetermined pressure is set to a relatively high value (for example, 3 KPa), it is necessary to use a large-capacity circulation pump in order to make the pressure in the dissolution tank 14 equal to or higher than the predetermined pressure (= 3 KPa). There is a risk that the entire apparatus will be larger than in the case of this example. Therefore, in this specific example, the urging force of the coil spring 24 that urges the valve body 23 upward is such that the valve body 23 resists the urging force when the pressure in the dissolution tank 14 exceeds a predetermined pressure (= 2 KPa). Thus, the value is set so as to be displaced to the valve opening position. In addition, when the valve body 23 is located in the valve opening position, the pressure in the dissolution tank 14 is maintained at a predetermined pressure.

  Further, in this specific example, since air is not supplied into the dissolution tank 14, when the air in the dissolution tank 14 is pressurized and dissolved in the water W supplied from the circulation pump 13, the dissolution tank 14. The air inside will gradually decrease. In order to avoid this state, when the control signal is input from the external device or the user operates the operation unit 76 based on the determination of the control device 75, the drive of the circulation pump 13 is first temporarily stopped. Next, the drain on-off valve 29 and the intake on-off valve 34 are opened. Then, air is supplied from the outside into the dissolution tank 14 through the connection pipe line 30 and the second housing flow path 46. Therefore, the amount of air stored in the dissolution tank 14 increases, and the water W temporarily stored by raising the liquid level in the dissolution tank 14 is discharged not only from the water discharge conduit 26 but also from the drain conduit 28. . Then, the liquid level of the water W in the dissolution tank 14 gradually falls, and when the liquid level is below the nozzle communication channel 69, both the drain on-off valve 29 and the intake on-off valve 34 are closed. The driving of the circulation pump 13 is resumed. As a result, since the air is sufficiently stored in the dissolution tank 14, a decrease in the efficiency of pressurizing and dissolving the air into the water W in the dissolution tank 14 is suppressed. Accordingly, fine bubbles are favorably discharged from the foam nozzle 27 into the storage tank 12.

  Therefore, in this specific example, the following effects can be obtained.

  (1) The water (liquid) W discharged from the circulation pump 13 flows in the injection nozzle 60 toward the nozzle opening 68 and is injected into the dissolution tank 14 from the nozzle opening 68. At this time, since a negative pressure is generated in the nozzle hole (liquid flow path) 62 of the injection nozzle 60 based on the flow of the water W, the nozzle communication flow path 69 communicating with the nozzle hole 62 enters the dissolution tank 14. The stored air (gas) is sucked into the nozzle hole 62. As a result, the water W sprayed from the nozzle opening 68 is reliably mixed even without providing a mechanism for sucking outside air into the suction flow path (for example, the second water suction pipe 16). The Then, the water W mixed with air is injected into the dissolution tank 14, whereby the air can be efficiently pressurized and dissolved in the water W in the dissolution tank 14. Therefore, it is possible to achieve both the downsizing of the entire apparatus and the improvement of the efficiency of pressurizing and dissolving air into the water W in the dissolution tank 14.

  (2) Based on the negative pressure in the nozzle hole 62 generated when the water (liquid) W flows toward the nozzle opening 68 in the nozzle hole (liquid flow path) 62 of the injection nozzle 60, the air storage region (gas Air (gas) stored in the storage area 14 </ b> B is reliably sucked into the nozzle hole 62 through the nozzle communication channel 69. For this reason, it is possible to reliably contribute to the improvement of the efficiency of pressurizing and dissolving air into the water W in the dissolution tank 14.

  (3) The nozzle opening 68 is formed on the end surface of the upper end portion 61 of the injection nozzle 60 that faces the inner surface of the upper wall of the upper housing 41. Therefore, the nozzle opening 68 of the injection nozzle 60 can be disposed at a position above the liquid level of the water (liquid) W temporarily stored in the dissolution tank 14 in the dissolution tank 14. The nozzle communication channel 69 can also be disposed at a position above the liquid level of the water W in the dissolution tank 14. Therefore, when the water W flows in the nozzle hole (liquid channel) 62 of the injection nozzle 60, the air stored above the liquid level of the water W in the dissolution tank 14 is nozzled in the nozzle hole 62. Inhalation can be facilitated through the communication channel 69.

  (4) When the air (gas) stored in the dissolution tank 14 is reduced, the driving of the circulation pump 13 is stopped and the intake on-off valve (intake valve) 34 and the drain on-off valve (discharge) By opening each of the valves 29, air is supplied from the outside into the dissolution tank 14 via the connection pipe line (gas suction flow path) 30. Thus, by supplying air into the dissolution tank 14 and restarting the driving of the circulation pump 13 in a state where the air is sufficiently stored in the dissolution tank 14, the water (liquid) W in the dissolution tank 14 is entered. It is possible to suppress a decrease in the efficiency of air pressure dissolution.

  (5) Air (gas) is pressurized and dissolved in the water (liquid) W supplied into the dissolution tank 14 based on the drive of the circulation pump 13. A part of the pressure-dissolved water W is supplied to the first flow path (suction flow path) via the circulation communication flow path (second housing flow path 46, connection pipe line 30 and second flow path 21). ) 18, and is injected into the dissolution tank 14 together with the water W newly sucked from the storage tank 12 through the first water intake pipe 15. That is, in the fine bubble generating device 11 of this specific example, a part of the water W in which air is pressurized and dissolved in the dissolution tank 14 circulates between the circulation pump 13 and the dissolution tank 14 many times. become. Therefore, a larger amount of air is pressurized and dissolved in the water W temporarily stored in the dissolution tank 14 than in the case where the circulation communication channel is not provided. Therefore, even if the amount of water W absorbed from the storage tank 12 is small, many fine bubbles can be released into the storage tank 12.

  (6) Until the pressure in the second channel (circulation communication channel) 21 (that is, the pressure in the dissolution tank 14) becomes equal to or higher than the predetermined pressure, the circulation communication channel (second housing channel 46). The connection pipe 30 and the second flow path 21) are not opened with respect to the first flow path (suction flow path) 18. Therefore, when the circulation pump 13 is driven, the pressure in the dissolution tank 14 is a predetermined pressure. Maintained above. Therefore, the air into the water W in the dissolution tank 14 is set by setting the predetermined pressure to a pressure value at which the pressurized dissolution efficiency of the air (gas) into the water (liquid) W in the dissolution tank 14 is increased. Can be maintained at a high efficiency.

  (7) Moreover, since the pressure in the dissolution tank 14 is maintained at a predetermined pressure, it is possible to contribute to stabilization of the discharge amount per unit time of the water W discharged from the foaming nozzle 27 into the storage tank 12.

  (8) Further, even if the water absorption amount of the water W from the storage tank 12 changes due to variations in water absorption performance by the circulation pump 13 (variations based on changes over time, changes in temperature and humidity, etc.), A part of the water W temporarily stored in the dissolution tank 14 is absorbed. Therefore, a change in the injection amount of water W per unit time injected from the circulation pump 13 into the dissolution tank 14 can be suppressed.

  (9) A part of the water W in which air is pressure-dissolved in the dissolution tank 14 circulates between the circulation pump 13 and the dissolution tank 14 many times. Therefore, the dissolved air amount of the water W temporarily stored in the dissolution tank 14 of the fine bubble generating apparatus 11 of this specific example is a conventional apparatus that does not circulate the pressurized water W dissolved in the apparatus. More than the dissolved air amount of the water W temporarily stored in the dissolution tank 14. Therefore, a large number of fine bubbles can be generated more effectively in the storage tank 12.

  (10) In the vicinity of the liquid surface of the water (liquid) W temporarily stored in the dissolution tank 14, bubbles entrained in the water W may be included. In this specific example, the communication portion between the dissolution tank 14 and the second housing flow path (circulation communication flow path) 46 is formed between the dissolution tank 14 and the first housing flow path (discharge flow path) 45. It arrange | positions in the position near the said liquid level rather than a communication site | part. Therefore, water W containing bubbles may flow into the second housing flow path 46. Then, the water W mixed with bubbles is again injected into the dissolution tank 14 through the first flow path (suction flow path) 18 and the like. That is, since the water W injected into the dissolution tank 14 contains air, the contact area between the water W injected into the dissolution tank 14 and the air can be increased in the dissolution tank 14. . Accordingly, it is possible to improve the pressure dissolution efficiency of air into the water W in the dissolution tank 14.

  Next, a second specific example of the microbubble generator 11 that can be used in the embodiment of the present invention will be described with reference to FIG. Note that the second specific example is different from the first specific example in the connection position of the gas suction channel and the arrangement of the nozzle communication channel 69 in the vertical direction. Therefore, in the following description, parts different from those of the first specific example will be mainly described, and the same or corresponding member configurations as those of the first specific example are denoted by the same reference numerals and redundant description is omitted. Shall.

  As shown in FIG. 8, the microbubble generator 11 of this specific example includes a circulation pump 13 and a dissolution tank 14 capable of sucking and discharging not only water (liquid) W but also air (gas). The circulation pump 13 is configured to absorb the water W in the storage tank 12 through the first water absorption pipe 15, the first flow path 18, and the second water absorption pipe 16 constituting the suction flow path. . In addition, an air suction conduit 95 as a gas suction passage is connected to the second water suction conduit 16, and an intake on-off valve 34 (for example, an intake valve) is connected to an upper end of the air suction conduit 95. Solenoid valve) is provided. The intake open / close valve 34 opens and closes based on a control command of a control device 75 as valve control means.

  Therefore, in this specific example, when the intake on-off valve 34 is opened when the circulation pump 13 is driven, air is sucked into the circulation pump 13 from the outside via the air suction pipe 95 and the second water suction pipe 16. The The air sucked into the circulation pump 13 is supplied into the dissolution tank 14 via the discharge pipe 25 and the injection nozzle 60A. When the intake opening / closing valve 34 is opened, the air fluidity is higher than the fluidity of the water W, so that the water W is hardly sucked into the circulation pump 13. That is, the air suction pipe 95 of this specific example is not for mixing air into the water W flowing in the second water suction pipe 16 toward the circulation pump 13, but for supplying air into the dissolution tank 14. This is a pipeline.

  The dissolution tank 14 is connected to a left end portion 31 of a connection pipe line 30A extending in one direction (left and right direction in FIG. 8), and a right end part 32 of the connection pipe line 30A is connected to the flow rate increasing device 17. . A part of the water W temporarily stored in the dissolution tank 14 flows into the flow rate increasing device 17 through the connection pipe line 30A. Therefore, in this specific example, the second housing flow path 46, the connecting pipe line 30 </ b> A, and the second flow path 21 in the flow rate increasing device 17 constitute a circulation communication flow path.

  The spray nozzle 60 </ b> A provided in the dissolution tank 14 has a nozzle opening 68 formed at the end face of the upper end portion 61 positioned slightly above the liquid level of the water W temporarily stored in the dissolution tank 14. It is formed to do. The lower end portion 65 of the nozzle hole 62 formed in the upper end portion 61 of the injection nozzle 60A is located in the vicinity of the liquid level of the water W in the water storage region 14A in the dissolution tank 14. In the vicinity of the lower end portion 65 of the nozzle hole 62 in the water storage area 14A, the water W sprayed from the nozzle opening 68 of the spray nozzle 60A is temporarily stored in the dissolution tank 14. There are a large number of bubbles B entrained in the water W when they are struck on the liquid surface.

  A nozzle communication channel 69 is formed in the upper end portion 61 of the injection nozzle 60A so as to extend along the radial direction of the injection nozzle 60A between the lower end portion 65 and the intermediate portion 67. Since the lower end portion 65 of the upper end portion 61 of the injection nozzle 60A is located in the water storage area 14A, the nozzle communication channel 69 is also located in the vicinity of the liquid level of the water W in the water storage area 14A.

  Next, regarding the operation of the fine bubble generating device 11 of this specific example, the operation when being injected from the injection nozzle 60 </ b> A into the dissolution tank 14, and when the air is sucked from the outside via the air suction pipe 95. The following description will focus on the operation.

  Now, when the drive of the circulation pump 13 is started, the water W in the storage tank 12 is changed into the water absorption part 19, the 1st water absorption pipe line 15, the 1st flow path 18 and the 2nd water absorption pipe line 16 of the flow volume increasing device 17. Is sucked into the circulation pump 13 via Then, the water W sucked into the circulation pump 13 is discharged into the discharge pipe 25 and flows into the through hole 43 of the lower housing 40 from the downstream end of the discharge pipe 25, and is injected from the through hole 43. It flows into the nozzle 60A.

  Then, in the injection nozzle 60 </ b> A, the inflowing water W flows into the nozzle hole 62 of the upper end portion 61 through the nozzle flow path 64, and is injected from the nozzle opening 68 toward the upper wall inner surface 48 of the upper housing 41. Is done. Further, when the water W flows in the nozzle hole 62 from below to above (nozzle opening 68), a negative pressure is generated in the nozzle hole 62 based on the flow of the water W. Therefore, in the nozzle hole 62, a part of the water W temporarily stored in the water storage region 14A in the dissolution tank 14 via the nozzle communication channel 69 and the bubbles B entrained in the water W. A part of it is inhaled. As a result, water W mixed with bubbles B (air) is ejected from the nozzle opening 68 of the ejection nozzle 60A.

  Therefore, compared with the case where the water W not mixed with air is ejected from the nozzle opening 68, the water W is more efficiently as much as the contact area between the water W ejected from the nozzle opening 68 and the air becomes wider. It is possible to dissolve air under pressure. In this specific example, not only the bubbles B (air) but also part of the water W temporarily stored in the dissolution tank 14 is sucked into the nozzle hole 62 from the nozzle communication channel 69. Therefore, the amount of water W injected from the nozzle opening 68 per unit time is larger than that in the first specific example. As a result, as the amount of water W injected per unit time increases, air can be more effectively dissolved under pressure in the water W.

  Further, in this specific example, when the air in the dissolution tank 14 becomes low, when a control signal from an external device is input based on the determination of the control device 75 or when the user operates the operation unit 76, The on-off valve 34 is opened. Then, from the outside, air is sucked into the circulation pump 13 through the air suction pipe 95 and the second water suction pipe 16, and the air is supplied from the circulation pump 13 through the discharge pipe 25 and the injection nozzle 60A. Is supplied into the dissolution tank 14. That is, in this specific example, unlike the case of the first specific example, it is possible to supply air into the dissolution tank 14 without stopping the driving of the circulation pump 13.

  Thereafter, in order to stop the supply of air into the dissolution tank 14, when the control signal is input from an external device based on the determination of the control device 75 or when the user operates the operation unit 76, the intake on-off valve 34 is opened. The valve is closed. Then, the water W is sucked into the circulation pump 13 through the first water absorption pipe 15, the first flow path 18 of the flow rate increasing device 17, and the second water absorption pipe 16.

  Therefore, in this specific example, in addition to the effects shown in the above (1) and (5) to (10), the following effects can be obtained.

  (11) In general, in the vicinity of the liquid level of the water (liquid) W in the water storage area (liquid storage area) 14A, the water W injected into the dissolution tank 14 from the nozzle opening 68 of the injection nozzle 60A is the liquid level. As a result of being struck, a large number of bubbles B are present. Therefore, in this specific example, the inside of the nozzle hole 62 is based on the negative pressure in the nozzle hole 62 generated when the water W flows toward the nozzle opening 68 in the nozzle hole (liquid flow path) 62 of the injection nozzle 60A. In the water W temporarily stored in the water storage region 14A through the nozzle communication channel 69, the water W near the liquid surface and the bubbles B mixed with the water W are sucked. Therefore, since the water W mixed with the bubbles B is injected into the dissolution tank 14 from the nozzle opening 68 of the injection nozzle 60A, the pressure dissolution efficiency of air into the water W in the dissolution tank 14 is improved. Can certainly contribute.

  (12) The nozzle opening 68 is formed on the end surface of the upper end portion 61 of the injection nozzle 60 </ b> A that faces the inner surface of the upper wall of the upper housing 41. Therefore, the nozzle opening 68 of the injection nozzle 60 can be disposed at a position above the liquid level of the water (liquid) W temporarily stored in the dissolution tank 14 in the dissolution tank 14. The nozzle communication channel 69 can be arranged at a position slightly below the liquid level of the water W in the dissolution tank 14. Therefore, when the water W flows in the nozzle hole (liquid flow path) 62 of the injection nozzle 60, the water W mixed with bubbles B (air) temporarily stored in the dissolution tank 14 is nozzled in the nozzle hole 62. Inhalation can be facilitated through the communication channel 69.

  (13) When most of the air (gas) stored in the dissolution tank 14 is pressurized and dissolved in the water (liquid) W supplied into the dissolution tank 14, the intake on-off valve (intake valve) ) 34 is opened, the circulation pump 13 is driven through the air suction pipe (gas suction passage) 95 and the second water suction pipe (suction passage) 16 based on the drive of the circulation pump 13. Air is inhaled. Then, air is supplied from the circulation pump 13 into the dissolution tank 14 via the discharge pipe 25. Therefore, it is possible to suppress a decrease in efficiency of pressurizing and dissolving air into the water W in the dissolution tank 14 due to insufficient storage of air in the dissolution tank 14.

  Next, a third specific example of the fine bubble generator 11 that can be used in the embodiment of the present invention will be described with reference to FIG. The third specific example is different from the second specific example in that the flow rate increasing device 17 and the foaming nozzle 27 are integrally attached to the dissolution tank 14. Therefore, in the following description, parts different from those of the second specific example will be mainly described, and the same or corresponding member configurations as those of the first and second specific examples are denoted by the same reference numerals and redundant description will be given. Shall be omitted.

  As shown in FIG. 9, the fine bubble generating device 11 of this specific example is arranged in a state where the lower portions of the circulation pump 13 and the dissolution tank 14 are submerged in the water W in the storage tank 12. Even in such an arrangement mode, the intake on-off valve 34 is arranged above the liquid level of the water W stored in the storage tank 12.

  The flow rate increasing device 17 is directly attached (that is, directly attached) to the lower housing 40 constituting the dissolution tank 14, and the second housing flow path 46 in the lower housing 40 is connected to the flow increasing device 17. The valve chamber 20 communicates directly. That is, in this specific example, the circulation communication flow path is configured only by the second housing flow path 46. In addition, the dissolution tank 14 of this specific example includes a lower housing 40, an upper housing 41, and a flow rate increasing device 17. Further, the foaming nozzle 27 is directly attached (that is, directly attached) to the dissolution tank 14, and the first housing flow path 45 of the dissolution tank 14 communicates directly with the foaming nozzle 27.

  Therefore, in this specific example, in addition to the effects shown in the above (1) and (5) to (13), the following effects can be obtained.

  (14) The foaming nozzle (discharge nozzle) is directly attached (that is, directly attached) to the dissolution tank 14 without passing through the water discharge pipe 26. Therefore, it is possible to contribute to miniaturization of the entire apparatus by the amount that the water discharge pipe 26 is not provided.

  (15) Also, as in the first specific example, when there is a portion that is bent between the dissolution tank 14 and the foaming nozzle 27 (in the first specific example, the water discharge pipe 26 is this). That part becomes the flow resistance, and a part of the pressure of the water W flowing toward the foaming nozzle 27 is lost. In this regard, in this specific example, there is no portion that bends from the inside of the dissolving tank 14 to the inside of the foaming nozzle 27, and water W is directly supplied from the inside of the dissolving tank 14 into the foaming nozzle 27. Therefore, the pressure loss of the water W when the water W flows from the dissolution tank 14 into the foaming nozzle 27 is smaller than that in the case of the first specific example. The pressure dissolution efficiency of air in the water W can be improved.

  (16) In this specific example, since the flow rate increasing device 17 constitutes the dissolution tank 14, the valve mechanism 22 in the flow rate increasing device 17 is arranged in the dissolution tank 14. Therefore, unlike the first and second specific examples, it is not necessary to provide the connection pipes 30 and 30A, which can contribute to downsizing of the entire apparatus.

  (17) Like the first and second specific examples, a portion that is bent between the second housing flow path 46 and the inside of the valve chamber 20 of the dissolution tank 14 (the second flow of the first and second specific examples). If the channel 21 has this contact), that portion becomes a flow resistance, and a part of the pressure of the water W flowing toward the valve chamber 20 is lost. In this regard, in this specific example, there is no portion that bends between the second housing flow path 46 of the dissolution tank 14 and the inside of the valve chamber 20. Therefore, the pressure loss of the water W when the water W flows from the second housing flow path 46 into the valve chamber 20 is smaller than that in the first and second specific examples. Only part of the water W temporarily stored in the dissolution tank 14 can be returned to the circulation pump 13 side effectively.

  Each of the above specific examples may be changed to another specific example as follows.

  In the third specific example, the foaming nozzle 27 may be connected to the dissolution tank 14 via the water discharge pipe 26. Further, the foaming nozzle 27 may be arranged so that water W and fine bubbles can be discharged to the left side and the right side.

  In the first specific example, the drain on / off valve 29 and the drain pipe 28 may not be provided. With this configuration, when the intake on-off valve 34 is opened, more water W is discharged from the water discharge conduit 26 than when the intake on-off valve 34 is closed.

  In addition, in the first specific example, the gas suction flow path may be connected to the suction flow path (for example, the second water absorption pipe line 16), similarly to the second specific example. In this case, the drain on / off valve 29 and the drain pipe 28 may not be provided.

  In the first specific example, the gas intake passage and the intake on-off valve 34 may not be provided. In this case, when the level of the water W in the dissolution tank 14 rises as the air in the dissolution tank 14 decreases, the level of the water W is positioned above the nozzle communication channel 69. Become. Then, the water W in the dissolution tank 14 flows into the nozzle hole 62 from the nozzle communication channel 69 due to the negative pressure in the nozzle hole 62 generated based on the flow of the water W in the nozzle hole 62. The water W is jetted from the nozzle opening 68 together with the water W supplied from the circulation pump 13. Accordingly, in this case, since the water W is sucked into the injection nozzle 60 through the nozzle communication channel 69, the injection amount per unit time of the water W injected from the injection nozzle 60 is increased accordingly. As a result, the pressure dissolution efficiency of air into the water W in the dissolution tank 14 can be improved. In this case, the nozzle communication channel 69 functions as a liquid suction channel.

  In the first specific example, a liquid level detection sensor (for example, a float sensor) for detecting the liquid level of the water W temporarily stored in the dissolution tank 14 may be provided in the dissolution tank 14. Good. Then, as a result of detecting the liquid level based on the input signal from the liquid level detection sensor, it is determined that the level of the water W in the dissolution tank 14 is located above the nozzle communication channel 69. In this case, the driving of the circulation pump 13 may be temporarily stopped and the drain on / off valve 29 and the intake on / off valve 34 may be opened. If comprised in this way, when the pressurization melt | dissolution efficiency of the air in the water W in the melt | dissolution tank 14 will begin to fall based on the fall of the storage amount of the air in the melt | dissolution tank 14, air will be in a melt | dissolution tank 14 Accordingly, the drain on / off valve 29 and the intake on / off valve 34 are opened. Therefore, it can suppress that the pressure | pressure dissolution efficiency of the air in the water W falls in the dissolution tank 14. FIG.

  Further, the liquid level detection sensor as described above may be provided in the dissolution tank 14 of the second and third specific examples. As a result of detecting the liquid level based on the input signal from the liquid level detection sensor, the position of the liquid level of the water W in the dissolution tank 14 is determined from a predetermined position (for example, the nozzle opening 68). It is desirable to open the intake on-off valve 34 when it is determined that the intake valve 34 is also located above.

  In the first specific example, when the elapsed time from the start of the driving of the circulation pump 13 is equal to or longer than a predetermined time set in advance, the driving of the circulation pump 13 is temporarily stopped and the on-off valve for drainage 29 and the intake on-off valve 34 may be opened. For a predetermined time, the circulation pump 13 starts to be driven in a state where the water W is not stored in the dissolution tank 14, and the liquid level of the water W in the dissolution tank 14 is located above the nozzle communication channel 69. It is desirable to set the time until it starts. If comprised in this way, when the pressurization melt | dissolution efficiency of the air in the water W in the melt | dissolution tank 14 will begin to fall based on the fall of the storage amount of the air in the melt | dissolution tank 14, air will be in a melt | dissolution tank 14 Accordingly, the drain on / off valve 29 and the intake on / off valve 34 are opened. Therefore, it can suppress that the pressure | pressure dissolution efficiency of the air in the water W falls in the dissolution tank 14. FIG.

  In addition, in the second and third specific examples, when the elapsed time since the start of the circulation pump 13 exceeds a predetermined time set in advance, the intake on-off valve 34 is opened. It may be. The predetermined time is the time until the position in the vertical direction of the liquid level of the water W temporarily stored in the dissolution tank 14 reaches the position above the nozzle opening 68 from the position shown in FIGS. It is desirable to set.

  In each specific example, the nozzle communication channel 69 may be formed such that the channel cross-sectional area thereof is equal to the channel cross-sectional area of the lower end portion 65 of the nozzle hole 62. Further, the nozzle communication channel 69 may be formed so that the channel cross-sectional area thereof is equal to the channel cross-sectional area of the intermediate portion 67 of the nozzle hole 62.

  In the first specific example, if the nozzle opening 68 and the nozzle communication channel 69 are disposed above the liquid level of the water W temporarily stored in the dissolution tank 14, the injection nozzle 60 is dissolved. The structure may extend downward from the upper end of the tank 14. In this case, the water W discharged from the circulation pump 13 is sprayed from the spray nozzle 60 toward the liquid level of the water W temporarily stored in the dissolution tank 14. Further, the injection nozzle 60 may be configured to extend from the right side in FIG. 1 toward the left side in the dissolution tank 14. In this case, the spray nozzle 60 sprays toward the side wall inner surface 50 of the dissolution tank 14.

  In each specific example, as shown in FIG. 10, the nozzle communication flow path approaches the nozzle hole 62 radially inward from the radially outer side of the spray nozzle 60 at the upper end portion 61 of the spray nozzle 60, 60 </ b> A. The nozzle communication flow path 80 formed so that the cross-sectional area of the flow path gradually becomes smaller along with this may be used. By providing a restriction (so-called orifice) in the nozzle communication flow path 80 in this way, when the water W flows in the nozzle hole 62, the air W or the water W in which bubbles are mixed is efficiently supplied into the nozzle hole 62. Can be inhaled.

  In each specific example, the intake on-off valve 34 may be an on-off valve that moves a valve body (not shown) based on driving of a motor.

  In the first specific example, the on-off valve 29 for drainage may be an on-off valve that moves a valve body (not shown) based on driving of a motor.

  In the first and second specific examples, the lower end portion of the second flow path 21 in the flow rate increasing device 17 (that is, the portion communicating with the valve chamber 20) approaches the valve chamber 20 as shown in FIG. Or it may be an orifice 85 in which the cross-sectional area of the flow path gradually decreases. With this configuration, the pressure applied to the valve body 23 by the water W in the second flow path 21 (that is, the pressure to displace the valve body 23 downward) is compared to the case where the orifice 85 is not provided. Therefore, the valve body 23 can be quickly displaced downward against the urging force of the coil spring 24. That is, the water W temporarily stored in the dissolution tank 14 via the second flow path 21 can be quickly returned to the first flow path 18.

  -In each specific example, you may form the lower housing 40 so that the right side bottom face 40c and the left side bottom face 40b may become the same height position in an up-down direction. If comprised in this way, the communication site | part of the dissolution tank 14 and the 2nd housing flow path 46 will become the same height position in the up-down direction with the communication site | part between the dissolution tank 14 and the 1st housing flow path 45.

  In each specific example, the valve mechanism 22 accommodated in the flow rate increasing device 17 is a valve that displaces the valve body 23 between two positions of a valve closing position and a valve opening position based on a control command from the control device 75 ( For example, a solenoid valve) may be used. In this case, it is desirable to provide a hydraulic pressure detection sensor for detecting the hydraulic pressure of the water W in the dissolution tank 14. And when it determines with the hydraulic pressure of the water W in the dissolution tank 14 detected based on the signal from this hydraulic pressure detection sensor becoming more than the predetermined pressure set beforehand, the valve body 23 is displaced to a valve opening position. Therefore, the drive of the valve mechanism 22 is controlled.

  In the first and second specific examples, as shown in FIG. 12, the valve body is supported at the communication portion between the second flow path 21 and the valve chamber 20 at the left end (that is, the upstream end in the flow direction of the water W). It may be a valve body 90 that is fixed and deforms when the hydraulic pressure of the water W in the second flow path 21 becomes equal to or higher than a predetermined pressure set in advance.

  In each specific example, the fine bubble generating device 11 may be a device that pressurizes and dissolves a gas (for example, oxygen) other than air in the water W in the dissolution tank 14. In this case, it is necessary to store oxygen in the dissolution tank 14 in advance.

  In each specific example, the fine bubble generating device 11 may be embodied in such a manner that a liquid other than water (for example, ethanol) is supplied into the dissolution tank 14 and air is pressurized and dissolved in the liquid.

  In each specific example, the air flow channel 69 may not be provided in the injection nozzles 60 and 60A. Even if comprised in this way, the effect of said (5)-(10) can be acquired.

  In a specific example, the upper end portion 33 of the connection pipe line 30 may not be provided with the intake on-off valve 34. In this case, as a result of the water W mixed with air being sucked into the circulation pump 13, excess air (excess air) that cannot be pressurized and dissolved in the water W in the dissolution tank 14. May occur. Therefore, in the case of such a configuration, it is desirable to provide a mechanism for exhausting excess air in the dissolution tank 14 out of the dissolution tank 14.

  As mentioned above, although the detail of the microbubble generator 11 was demonstrated, it is desirable to install the water absorption part 19 and the foaming nozzle 27 in the lower layer part of the storage tank 12. FIG. This is because the fine bubbles rise to the upper layer of the storage tank 12 over time because the specific gravity of the fine bubbles is lighter than that of water. That is, when the water absorption part 19 and the foaming nozzle 27 are installed in the upper layer part of the storage tank 12, since the fine bubbles are unevenly distributed in the upper layer part of the storage tank 12, there is a possibility that the cleaning ability is lowered.

  Further, by providing the microbubble generator 11 described above inside the storage tank 12, it is possible to expect an improvement in the cleaning ability of the toilet 900 by the microbubbles. This is because fine bubbles are charged, and it is expected to adsorb dirt (such as oil components).

  Moreover, since the discharge nozzle 27 is installed inside the storage tank 12, fine bubbles are generated in the water W in the storage tank 12, so that the inside of the storage tank 12 can be expected to be cleaned. This is very effective in consideration of the fact that the inside of the storage tank 12 usually has few opportunities to be cleaned and dirt easily adheres thereto. Furthermore, since the entire fine bubble generating device 11 is installed inside the storage tank 12, each flow channel installed in the fine bubble generating device 11 can be shortened, and the flow loss can be reduced. It can also be expected that the white turbidity efficiency of the water W due to the bubbles is increased.

  Moreover, since the volume of the bubble which occupies the inside of the water W increases by containing a lot of fine bubbles in the water W, the water saving of washing water can also be expected.

  Also, water W containing a large amount of fine bubbles is caused to flow through the toilet 900 in conjunction with the seating sensor or the human body sensor, that is, pre-washing causes the water W containing a large amount of fine bubbles to accumulate in the toilet 900. It will be. Thereby, since a large amount of fine bubbles can be expected to play the role of a cushion, it is also possible to expect a reduction in splashes of urine, filth staying in the toilet bowl 900, and splashes of sewage. Furthermore, since a large amount of fine bubbles serve as a cushion, it can be expected that the water noise is reduced when the cleaning water is discharged from the storage tank 12 to the toilet bowl 900.

  Further, since the fine bubbles are bubbles that spontaneously disappear, the time for which the bubbles are present is short compared with the case where the cleaning ability is improved using a surfactant or the like. Therefore, the appearance of water collected in the toilet bowl 900 does not become a problem.

Next, operation | movement of the toilet apparatus of this embodiment is demonstrated.
FIG. 13 is a flowchart illustrating the operation of the toilet apparatus according to this embodiment.
In the standby state (step S100), for example, the presence or absence of the user is appropriately detected by a human body detection sensor provided in the toilet seat device 810 or the like.
And if presence of a user is detected (step S110), the fine bubble generator 11 will be operated and a bubble will be mixed in the water W stored by the storage tank 12 inside the low tank 920 (step S120). Here, the toilet seat device 810 may be provided with a human body detection sensor that detects the presence of a user standing in front of the toilet 900 and a human body detection sensor that detects the presence of a user sitting on the toilet seat. In this case, for example, when it is detected that the user is sitting on the toilet seat, the fine bubble generating device 11 may be operated. In this way, water W containing bubbles is generated in the storage tank 12 accommodated in the low tank 920.

  Then, when the user operates the cleaning handle 925 (see FIGS. 1 and 2), the cleaning water W containing bubbles is caused to flow into the toilet bowl 900 (step S130). By doing so, cleaning with the cleaning water W containing bubbles is executed.

FIG. 14 is a flowchart illustrating the contents of step S120 for generating fine bubbles.
That is, in response to detection of a human body by the human body detection sensor, generation of fine bubbles is started (step S122), and the operation of the fine bubble generator 11 is continued for a predetermined time T1 (step S124). The predetermined time T1 can be appropriately determined as a time until a predetermined amount of bubbles are mixed into the water W stored in the storage tank 12.

When the predetermined time T1 elapses (step S124: yes), the fine bubble generating device 11 stops (step S126). Thereafter, when the predetermined time T2 elapses (step S128: yes), the fine bubble generating device 11 operates again. Is started (step S122). This is because the bubbles mixed in the water W of the storage tank 12 disappear with time. Therefore, the predetermined time T2 can be appropriately determined as the time until the bubble content in the water W stored in the storage tank 12 falls below a desirable range.
In this way, for example, even when a relatively long time has elapsed with the user sitting on the toilet seat, the amount of bubbles contained in the cleaning water W can be maintained within a predetermined range.

  In addition, when the water level sensor is appropriately provided in the fine bubble generating device 11 or the storage tank 12, and the user operates the cleaning handle 925 during the series of steps shown in FIG. 14, the cleaning water W is drained. The operation of the microbubble generator 11 may be automatically stopped.

  Next, a second embodiment of the present invention will be described with reference to FIGS.

  15 and 16 are schematic views of the inside of the storage tank 12 as viewed from the front of the toilet bowl 900. FIG. As shown in FIGS. 15 and 16, a storage tank 12 is installed inside the low tank 920, and water W can be stored in the storage tank 12. The storage tank 12 does not extend over the entire range of the low tank 920, and a dry area 940 isolated from the water W is provided inside the low tank 920. In the specific example shown in FIG. 15, the pressurized melting tank 14 is provided in the storage tank 12, and only the circulation pump 13 is installed in the dry area 940. On the other hand, in the specific example shown in FIG. 16, the circulation pump 13 and the dissolution tank 14 are installed in the dry area 940.

  As shown in FIG. 15, since the circulation pump 13 is installed in the dry area 940, waterproofing of the circulation pump 13 is unnecessary or light. According to this, the cost of the circulation pump 13 can be reduced, and the life of the circulation pump 13 can be expected to be improved by being isolated from the water W.

  On the other hand, as shown in FIG. 16, since the circulation pump 13 and the dissolution tank 14 are installed in the dry area 940, waterproofing of the circulation pump 13 and the dissolution tank 14 becomes unnecessary. According to this, it is possible to further reduce the cost of the dissolution tank 14 as compared with the case of FIG. 15, and it is possible to reduce the cost of the fine bubble generating device 11 as a whole. Further, the life of the dissolution tank 14 can be expected to be improved.

Next, a third embodiment of the present invention will be described with reference to FIGS.
FIG. 17A is a perspective view of the toilet device 800 according to the present embodiment when viewed from the front left side obliquely, and FIG. 17B is a diagram in which the toilet seat device 810 and the side panel 950 are removed from the toilet device 800 according to the present embodiment. Furthermore, the state which decomposed | disassembled the cabinet 750 is represented.

  FIG. 18 is a perspective view showing another specific example of the present embodiment.

  In the specific examples shown in FIGS. 17A and 17B, a cabinet 750 is installed behind the toilet bowl 900. Inside the cabinet 750, the raw tank 920 and the fine bubble generator 11 are concealed. In this specific example, as described above with reference to FIGS. 2, 15, and 16, a double structure in which the storage tank 12 is provided in the low tank 920 or a double structure in the low tank 920 may be used. It does not have to be a structure. When the inside of the low tank 920 is not a double structure, the low tank 920 also serves as the storage tank 12, and the water W is directly stored in the low tank 920. In any of these cases, according to the present embodiment, since the low tank 920 and the fine bubble generating device 11 cannot be seen from the outside, the appearance of the toilet device 800 is neat and looks good. Further, a remote controller 751 is installed on the side wall of the toilet bowl 900.

  In this specific example, as shown in FIGS. 17A and 17B, the fine bubble generating device 11 is attached to the side of the low tank 920. However, also in this specific example, the water absorption part 19 and the foaming nozzle 27 of the fine bubble generating device 11 are installed in the low tank 920 or the storage tank 12 provided therein. Furthermore, also in this specific example, it is desirable that the water absorption part 19 and the foaming nozzle 27 are installed in the lower layer part of the low tank 920 or the storage tank 12 provided therein.

  Also in this specific example, the fine bubble generating device 11 can be provided without impairing the appearance of the toilet device 800, and improvement in cleaning performance can be expected. Furthermore, the above-described various effects such as the cleaning effect of the storage tank 12 (or the inner wall of the low tank 920) due to fine bubbles can be similarly expected.

  On the other hand, in the specific example shown in FIG. 18, a shelf 650 is provided on the side of the toilet bowl 900, and a cabinet 750 is provided behind the toilet bowl 900. A paper holder 620 that holds the toilet paper 610 is provided under the shelf board 650. In addition, cabinets 600 and 602 and the like are installed under the shelf plate 650, and a hand-washing bowl 630 with a faucet 640 is provided on the shelf plate 650.

  Also in the specific example shown in FIG. 18, the low tank 920 and the fine bubble generating device 11 are concealed inside the cabinet 750 in the same manner as described above with reference to FIG. 17. Therefore, since the low tank 920 and the fine bubble generating device 11 cannot be seen from the outside, the appearance of the toilet device 800 is clean and the appearance is not impaired. Further, the fine bubble generating device 11 is installed on the side of the low tank 920, and the water absorption part 19 and the foaming nozzle 27 are installed in the low tank 920 or the storage tank 12 provided therein. Also in this specific example, it is desirable that the water absorption part 19 and the foaming nozzle 27 are installed in the lower tank 920 or in the lower layer part of the storage tank 12 provided therein.

  As described above, also in the toilet apparatus shown in FIG. 18, the fine bubble generating device 11 can be provided without impairing the appearance, and improvement in cleaning performance can be expected. Furthermore, the above-described various effects such as the cleaning effect of the storage tank 12 (or the inner wall of the low tank 920) due to fine bubbles can be similarly expected.

  In the specific example described above with reference to FIGS. 17 and 18, part or all of the fine bubble generating device 11 may be accommodated in the low tank 920. Further, in the specific example described above with reference to FIG. 18, the fine bubble generating device 11 may be accommodated in either of the left and right cabinet portions 752 and 754 of the cabinet 750 without being adjacent to the low tank 920.

  In the case of a toilet apparatus in which a lining cabinet or cabinet is provided adjacent to the toilet bowl 900, it is advantageous in that the space for installing the microbubble generator 11 is increased without deteriorating the appearance.

Next, a third embodiment of the present invention will be described with reference to FIGS.
FIG. 19 is a top view of the toilet apparatus 800 according to the present embodiment, and FIG. 20 is a left side view thereof.
FIG. 21 is a perspective view of the toilet device 800 according to the present embodiment as viewed from diagonally upward to the rear, and FIG. 22 is a cross-sectional view taken along line VI-VI in FIG. 19 to 22 show the toilet apparatus 800 according to the present embodiment with the toilet lid 820, the toilet seat apparatus 810, and the side panel 950 removed.

  The toilet bowl 900 includes a functional part 710, a bowl part 712 that receives filth, a drain trap pipe 714 extending from the bottom of the bowl part 712, a jet water outlet 716 that performs jet water discharge, and a rim water outlet 718 that performs rim water discharge. And having. The drain trap pipe 714 extends rearward and obliquely upward from the bottom of the bowl portion 712 and then extends downward and is connected to the drain pipe D. The jet spout 716 is formed at the bottom of the bowl portion 712 and is configured to discharge cleaning water toward the inlet of the drain trap conduit 714. The rim spout 718 is formed at the upper left rear of the bowl portion 712 and is configured to discharge cleaning water along the edge of the bowl portion 712.

  The toilet apparatus 800 according to the present embodiment is directly connected to a water supply that supplies cleaning water, and the cleaning water is discharged from the rim spout 718 by the water supply pressure of the water supply. That is, it is a water supply direct pressure toilet device. Further, the jet water discharge is configured such that the wash water stored in the storage tank 12 built in the function unit 710 is pressurized by a pressure pump and discharged from the jet water discharge port 716 at a large flow rate.

  The fine bubble generator 11 is installed behind the storage tank 12. Then, bubbles are mixed into the water W stored in the storage tank 12 by the fine bubble generator 11. Also in this embodiment, the water absorption part 19 and the foaming nozzle 27 are installed in the water W inside the storage tank 12 as in the first embodiment and the second embodiment. Furthermore, also in this embodiment, it is desirable that the water absorption part 19 and the foaming nozzle 27 are installed in the lower layer part of the storage tank 12.

FIG. 23 is a flowchart illustrating the operation of the toilet apparatus according to this embodiment.
Also in this specific example, as described above with reference to FIGS. 13 and 14, for example, a human body detection sensor provided in the toilet seat device 810 can detect the user's seating on the toilet seat (step S <b> 110). . And if a user's seating is detected, generation | occurrence | production of a bubble will be started (step S120). Its contents can be similar to those described above with respect to FIG.

  When the user stands up from the toilet seat and the human body is not detected (step S140), washing water is automatically flowed to the toilet bowl 900 (step S150). At this time, washing water containing bubbles stored in the storage tank 12 is also flowed, and the cleaning effect of the toilet bowl 900 can be enhanced.

  According to the present embodiment, it is possible to install the fine bubble generator 11 even in a direct water pressure toilet device, and it is possible to expect an improvement in cleaning performance by flowing cleaning water containing bubbles. Furthermore, it cannot be overemphasized that other effects which can be expected in the first embodiment such as the cleaning effect of the storage tank 12 by the fine bubbles can be expected.

Next, a fifth embodiment of the present invention will be described with reference to FIGS.
24 to 28 are schematic views showing specific examples of the urinal device according to the embodiment of the present invention. FIGS. 29 to 33 are all flowcharts showing the operation of the urinal apparatus according to the embodiment of the present invention. The urinal device of the present embodiment includes a circuit group 100 including a control circuit, a rectifier circuit, and the like, an on-off valve 200, a fine bubble generator 11, a storage tank 12, and a urinal 700. The circuit group 100 includes a control unit 110, an on-off valve electromagnetic drive unit 120, and a circulation pump power supply unit 130.

  According to the specific example shown in FIG. 24, the human body detection sensor 160 is provided in the control unit 110. Thereby, it is possible to sense the human body in front of the urinal 700. Therefore, when the human body detection sensor 160 senses that a human body is present, the fine bubble generating device 11 starts operating, and bubbles are mixed into the water stored in the storage tank 12. Subsequently, when it is sensed that there is no human body in front of the urinal 700, washing is performed by flowing water W containing fine bubbles stored in the storage tank 12 through the urinal 700.

  This operation process will be described with reference to FIG. 29. The urinal device in the standby state (step S210) performs human body detection (with human body) (step S220) and starts generation of fine bubbles (step S230). Subsequently, when human body detection (no human body) (step S240) is performed, the microbubble water cleaning start (step S250) is performed, and when cleaning with microbubble water is completed, the operation process returns to the standby state (step S210) again. It has become.

  Here, since the time from the start of the generation of the fine bubbles in the fine bubble generator 11 to the completion thereof is required for about 15 seconds, for example, if the sensor 160 detects that a human body is present, the fine bubbles are generated. It is desirable to start the generator 11.

  Next, according to the specific example shown in FIG. 25, the control unit 110 is provided with a switch 170. Thereby, when the switch 170 is turned on, the fine bubble generating device 11 starts to operate, and the bubbles are mixed into the water stored in the storage tank 12. This operation process will be described with reference to FIG. When the urinal apparatus in the standby state (step S210) is in a state in which the switch 170 is turned on, that is, in a state in which the switch is turned on (step S260), the generation of fine bubbles is started (step S230). The bubble water cleaning is started (step S250). After that, when the cleaning with fine bubble water is completed, the operation process returns to the standby state (step S210) again. Therefore, it is possible to obtain the same effect as the specific example of FIG.

  Next, in the urinal apparatus according to the specific examples shown in FIGS. 26 to 28, a switching valve 300 is provided on the upstream side of the storage tank 12. Thereby, the water W is branched into a flow path that passes to the storage tank 12 and a flow path that passes directly to the urinal 700.

  In the specific example shown in FIG. 26, a sensor 160 is provided in the control unit 110, as in the specific example shown in FIG. Thereby, it is possible to sense the human body in front of the urinal 700, and when the presence of the human body is sensed, the fine bubble generating device 11 starts to operate and starts generating fine bubbles. Subsequently, when it is sensed that there is no human body in front of the urinal 700, the urinal 700 is washed by the water W flowing through the flow path that directly passes from the switching valve 300 to the urinal 700. Thereafter, the water W containing fine bubbles generated in advance by the fine bubble generator 11 is discharged from the storage tank 12 to the urinal 700, and cleaning is performed.

  This operation process will be described with reference to FIG. 31. The urinal device in the standby state (step S210) performs human body detection (with human body) (step S220), and then performs human body detection (without human body) (step S240). Do. Subsequently, after human body detection (no human body) (step S240) is performed, the generation of fine bubbles (step S230) and the start of tap water cleaning (step S270) are performed independently and simultaneously. Further, when the cleaning with tap water is completed, the operation process of cleaning with tap water returns to the standby state (step S210) again. On the other hand, when the generation of fine bubbles is completed from the start of generation of fine bubbles (step S230), the cleaning of fine bubble water is started (step S250), and when the cleaning with fine bubbles is completed, the operation process returns to the standby state (step S210) again. It has become.

  Here, since the time from the start of microbubble generation in the microbubble generator 11 to the completion thereof is about 15 seconds, for example, 15 seconds from the start of microbubble generation in the microbubble generator 11 When the sensor 160 senses that no human body is left within, the water W is discharged in a state where the generation of fine bubbles is not completed. On the other hand, according to the specific example shown in FIG. 26, even if the sensor 160 senses that the human body has disappeared within 15 seconds after the microbubble generator 11 starts generating the microbubble, The urinal 700 is washed by the water W flowing through the flow path that directly passes from the switching valve 300 to the urinal 700, and after the generation of the fine bubbles by the fine bubble generator 11 is completed, the water W containing the fine bubbles is obtained. As a result, the urinal 700 is washed, so that anxiety and discomfort are not given to the user, and an improvement in washing ability can be expected.

  Next, in the specific example shown in FIG. 27, a switch 170 is provided in the control unit 110, as in the specific example shown in FIG. As a result, when the switch 170 is turned on, the fine bubble generating device 11 starts to operate and starts generating fine bubbles. However, the water W flowing in the flow path that first passes directly from the switching valve 300 to the urinal 700 is reduced. The toilet 700 is cleaned, and after the generation of fine bubbles by the fine bubble generator 11 is completed, the toilet 700 is cleaned with water W containing fine bubbles.

  This operation process will be described with reference to FIG. 32. When the urinal apparatus in the standby state (step S210) enters the state where the switch 170 is turned on, that is, the state where the switch is turned on (step S260), generation of fine bubbles starts (step S230). ) And tap water cleaning start (step S270) are performed independently and simultaneously. Further, when the cleaning with tap water is completed, the operation process of cleaning with tap water returns to the standby state (step 210) again. On the other hand, when the generation of fine bubbles is completed from the start of generation of fine bubbles (step S230), the cleaning of fine bubble water is started (step S250), and when the cleaning with fine bubbles is completed, the operation process returns to the standby state (step S210) again. It has become. As a result, as in the specific example shown in FIG. 26, the user can be expected to improve the cleaning ability without feeling uneasy and uncomfortable.

  Next, in the specific example shown in FIG. 28, a timer 180 is provided in the control unit 110. The timer 180 is interlocked with the fine bubble generating device 11, and when the timer 180 is set, the fine bubble generating device 11 starts generating fine bubbles, and when the fine bubble generation is completed, the timer 180 is started. Water W containing fine bubbles is discharged through a flow path that passes to the toilet 700.

  In addition to the cleaning with the water W containing fine bubbles generated by the fine bubble generating device 11, it is directly from the switching valve 300 by a command from a human body sensor (not shown) or a cleaning switch (not shown). The urinal 700 is washed by the water W flowing through the flow path passing through the urinal 700.

  This operation process will be described with reference to FIG. 32. The urinal apparatus in the standby state (step S210) performs the timer reaction (step S280) at the timing set by the timer 180, and the timer reaction (step S280) is performed. If so, generation of fine bubbles is started (step S230). Thereafter, when the generation of fine bubbles is completed, the fine bubble water cleaning is started (step S250), and when the cleaning with the fine bubble water is completed, the process returns to the standby state (step S210). On the other hand, there are separate operation steps independent of the timer reaction (step S280), the start of microbubble generation (step S230), and the start of microbubble water cleaning (step S250). In this case, the urinal device in the standby state (step S210) performs human body detection (with human body) (step S220), and then performs human body detection (without human body) (step S240). Subsequently, after human body detection (no human body) (step S240) is performed, tap water cleaning is started (step S270), and when cleaning with tap water is completed, the operation process of cleaning with tap water is again in a standby state ( The operation process returns to step S210). Therefore, as in the specific examples shown in FIGS. 26 and 27, the washing water is immediately poured every time it is used, so that the user does not feel uneasy and uncomfortable, and the water containing bubbles is discharged from the timer. Therefore, it is possible to expect an improvement in the cleaning ability by periodically flowing.

  As mentioned above, also in the urinal apparatus of this embodiment, it is possible to provide the microbubble generator 11 and it can be expected to improve the cleaning performance. Furthermore, it cannot be overemphasized that other effects which can be expected in the first embodiment such as the cleaning effect of the storage tank 12 by the fine bubbles can be expected.

  The embodiments of the present invention have been described above with reference to specific examples. However, the present invention is not limited to these specific examples.

  For example, the generation of fine bubbles may be started in conjunction with the seating sensor or the human body detection sensor of the toilet apparatus 800, and automatic fine bubble generation may be performed only during use. According to this, when the generation of fine bubbles is started in conjunction with the seating sensor or the human body detection sensor, if the time from the seating to the cleaning is long, the air in the dissolution tank 14 is consumed, and the fine bubbles are not cleaned before the cleaning. May disappear, but by supplying air from the outside, it is possible to continue generating fine bubbles until cleaning. Therefore, even when the time from sitting to cleaning is long, cleaning with water W containing a large amount of fine bubbles is possible.

  Moreover, the water absorption part 19 of the fine bubble generator 11 is installed between the water level when the storage tank 12 is full and the water level when the storage tank 12 is empty, and intake air from the water absorption part 19 when the water level of the storage tank 12 is lowered. Alternatively, air may be supplied into the dissolution tank 14. According to this, the connection pipe line 30 and the intake on-off valve 34 are not required, and the cost of the entire microbubble generator 11 can be reduced.

  Further, regarding the above-described specific examples, those appropriately modified by those skilled in the art are also included in the scope of the present invention as long as they have the characteristics of the present invention. For example, the shape and size of the toilet device and the structure, size, shape, arrangement relationship, number, material, and the like of each element constituting the toilet device are appropriately changed by those skilled in the art as long as they include the gist of the present invention. It is included in the range.

BRIEF DESCRIPTION OF THE DRAWINGS It is the schematic diagram which illustrated the external appearance of the toilet apparatus which concerns on embodiment of this invention, FIG.1 (a) is the perspective view seen from the front left side diagonal, FIG.1 (b) was seen from the front right side diagonal. It is a perspective view. It is the schematic diagram which looked at the storage tank inside from the front. It is a schematic sectional drawing of the microbubble generator in a 1st specific example. It is a schematic sectional drawing of a flow volume increasing apparatus. It is a top view at the time of seeing a lower housing from the upper part. It is a partial expanded sectional view of an injection nozzle. It is a block diagram which shows the electrical structure of a microbubble generator. It is a schematic sectional drawing of the microbubble generator in a 2nd example. It is a schematic sectional drawing of the microbubble generator in a 3rd example. It is a schematic sectional drawing which shows the shape of the nozzle communication flow path of another specific example. It is a schematic sectional drawing which shows the 2nd flow path of another specific example. It is a schematic sectional drawing which shows the valve body of another specific example. It is a flowchart which illustrates operation | movement of the toilet apparatus of this embodiment. It is a flowchart which illustrates the content of step S120 which generates a fine bubble. It is the schematic diagram which looked at the inside of the storage tank 12 from the front of the toilet bowl 900. FIG. It is the schematic diagram which looked at the inside of the storage tank 12 from the front of the toilet bowl 900. FIG. FIG. 17A is a perspective view of the toilet device 800 according to the present embodiment when viewed from the front left side obliquely, and FIG. 17B is a diagram in which the toilet seat device 810 and the side panel 950 are removed from the toilet device 800 according to the present embodiment. Furthermore, the state which decomposed | disassembled the cabinet 750 is represented. It is a perspective view showing another specific example of this embodiment. It is a top view of the toilet apparatus 800 by this embodiment. It is a left view of the toilet apparatus represented to FIG. It is the perspective view which looked at the toilet device 800 by this embodiment from back diagonally upward. It is sectional drawing which follows the VI-VI line of FIG. It is a flowchart which illustrates operation | movement of the toilet apparatus of this embodiment. It is a schematic diagram which shows the specific example of the urinal apparatus which concerns on embodiment of this invention. It is a schematic diagram which shows the specific example of the urinal apparatus which concerns on embodiment of this invention. It is a schematic diagram which shows the specific example of the urinal apparatus which concerns on embodiment of this invention. It is a schematic diagram which shows the specific example of the urinal apparatus which concerns on embodiment of this invention. It is a schematic diagram which shows the specific example of the urinal apparatus which concerns on embodiment of this invention. It is a flowchart figure which shows operation | movement of the urinal apparatus which concerns on embodiment of this invention. It is a flowchart figure which shows operation | movement of the urinal apparatus which concerns on embodiment of this invention. It is a flowchart figure which shows operation | movement of the urinal apparatus which concerns on embodiment of this invention. It is a flowchart figure which shows operation | movement of the urinal apparatus which concerns on embodiment of this invention. It is a flowchart figure which shows operation | movement of the urinal apparatus which concerns on embodiment of this invention.

Explanation of symbols

 DESCRIPTION OF SYMBOLS 11 Fine bubble generator (bubble generator), 12 Reservoir tank, 13 Circulation pump, 14 Pressurization melting tank (dissolution tank), 14A Water storage area, 14B Air storage area, 15 Water absorption line, 16 Water absorption line, 17 Flow rate increasing device, 18 flow path, 19 water absorption part, 20 valve chamber, 21 flow path, 22 valve mechanism, 23 valve body, 24 coil spring, 25 discharge pipe line, 26 water discharge line, 27 discharge nozzle (foaming nozzle), 28 Drain pipe, 29 Drain open / close valve, 30 Connection pipe, 30A Connection pipe, 31 Left end, 32 Right end, 33 Top end, 34 Intake open / close valve, 40 Lower housing, 40a Opening, 40b Left bottom, 40c Right bottom surface, 41 Upper housing, 41a Opening, 42 Tank body, 43 Through hole, 44 Insertion part, 45 Housing flow path, 46 Housing flow path, 7 Upper wall portion, 48 Upper wall inner surface, 49 Side wall, 50 Side wall inner surface, 60 Injection nozzle, 61 Upper end portion, 62 Nozzle hole, 63 Lower end portion, 64 Nozzle flow path, 65 Lower end portion, 66 Upper end portion, 67 Middle portion 68 nozzle opening, 69 nozzle communication flow path (air flow path), 75 control device, 76 operation section, 80 nozzle communication flow path, 85 orifice, 90 valve body, 95 air intake conduit, 100 circuit group, 110 control section , 120 On-off valve electromagnetic drive unit, 130 Circulation pump power supply unit, 160 Human body detection sensor, 170 Switch, 180 Timer, 200 On-off valve, 300 Switching valve, 600 Cabinet, 610 Toilet paper, 620 Paper holder, 630 Bowl, 640 Water faucet , 650 Shelf, 700 Urinal, 710 Functional part, 712 Bowl part, 714 Drain trap Pipe line, 716 Jet spout, 718 Rim spout, 750 Cabinet, 751 Remote control, 752 Cabinet part, 800 Toilet device, 810 Toilet seat device, 820 Toilet lid, 900 Toilet, 920 Low tank, 920 Reservoir, 921 Low tank lid, 925 Cleaning handle, 925 Cleaning handle lever, 930 Drain port, 931 Water supply port, 932 Float, 933 Ball tap, 934 Ball chain, 934 On-off valve, 940 Dry area, 950 Side panel

Claims (4)

Toilet bowl,
A storage tank for storing wash water to be supplied to the toilet;
A bubble generating device that mixes bubbles into water stored in the storage tank,
A circulation pump that circulates the liquid in the storage tank by sucking and discharging the liquid in the storage tank;
A suction flow path for sucking the liquid in the storage tank into the circulation pump;
A dissolution tank that pressurizes and dissolves gas in the liquid supplied from the circulation pump;
A discharge nozzle for discharging the liquid in the dissolution tank into the storage tank together with the fine bubbles;
A circulation communication channel that connects the inside of the dissolution tank and the suction channel, and returns a part of the liquid that is supplied into the dissolution tank and in which the gas is pressurized and dissolved, to the suction channel;
A bubble generating device having
A toilet apparatus characterized by comprising: The bubble generator is
A gas suction flow path connected to the suction flow path, for sucking gas from the outside into the circulation pump;
An intake valve capable of opening and closing the gas intake passage;
The toilet apparatus according to claim 1, further comprising valve control means for controlling opening and closing of the intake valve.   The toilet apparatus according to claim 1 or 2, wherein the discharge nozzle is directly attached to the dissolution tank. Further comprising a cabinet provided adjacent to the toilet bowl,
The toilet device according to any one of claims 1 to 3, wherein the bubble generating device is housed in the cabinet.