Water outlet device

Abstract

The water discharge device is provided with a foamer (5). The foamer (5) is provided with: a foamer main body (40) having a hollow substantially cylindrical shape; a mixed liquid inlet (41) and an air inlet (42) for allowing a fluid to flow into the foamer main body (40); a pre-stirring part (45) for pre-stirring the fluid flowing from the mixed liquid inlet (41) and the air inlet (42) in a direction perpendicular to the axial direction of the foamer main body (40); a full stirring part (46) for full stirring the fluid flowing in the axial direction after passing through the pre-stirring part (45); and an outlet (44) for allowing the foam generated by the pre-stirring part (45) and the full stirring part (46) to flow out to the outside of the foamer main body.

Description

Technical Field

[0001] The invention relates to a water outlet device capable of spraying foam. Background Art

[0002] Conventionally, there is known a foaming device that generates foam by stirring a gas-liquid mixed fluid in which compressed air is mixed with mixed water in which a liquid containing a foaming component and water are mixed, using a stirring portion, and the foam is made to flow out. Such a foaming device includes a porous body arranged in multiple stages along a flow path of the gas-liquid mixed fluid (for example, see Patent Document 1).

[0003] Prior art literature

[0004] Patent Literature

[0005] Patent Document 1: (Japanese) Patent Publication No. 2013-17948 Summary of the invention

[0006] Technical problem to be solved by the invention

[0007] In the foamer as described above, since a plurality of porous bodies are arranged along the flow path flowing in one direction, the foamer tends to be large-sized. The large-sized foamer may lead to the large-sized water discharge device using the foamer.

[0008] The present disclosure has been made in view of such a problem, and an object of the present disclosure is to provide a technology for miniaturizing a foamer in a water discharge device including a foamer.

[0009] Technical solutions for solving technical problems

[0010] In order to solve the above-mentioned technical problems, a water discharge device of one scheme of the present invention includes a foamer, and the foamer includes: the foamer includes: a foamer main body, which has a hollow roughly cylindrical shape; an inlet, which is used to allow a fluid to flow into the foamer main body; a pre-stirring part, which pre-stirs the fluid flowing from the inlet in a direction perpendicular to the axial direction of the foamer main body; a formal stirring part, which formally stirs the fluid flowing in the axial direction after passing through the pre-stirring part; and an outflow port, which allows the foam generated by the pre-stirring part and the formal stirring part to flow out to the outside of the foamer main body. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a perspective view of the water discharge device according to the embodiment.

[0012] Figure 2 This is a block diagram showing a configuration example of a water system and an electric circuit system of a water discharge device.

[0013] Figure 3 This is a three-dimensional view of the foamer as viewed from the upper water inlet side.

[0014] Figure 4 This is a perspective view of the foamer as viewed from the mixed liquid inlet and the air inlet.

[0015] Figure 5 It is a cross-sectional perspective view of the foamer.

[0016] Figure 6 It is an exploded perspective view of the foamer.

[0017] Figure 7 It is a perspective view of the porous body storage component and the cover.

[0018] Figure 8 It is a perspective view showing a state where the lid portion is removed from the porous body storage member.

[0019] Fig. 9 It is a three-dimensional diagram showing a porous body. DETAILED DESCRIPTION

[0020] Hereinafter, the present invention will be described based on a preferred embodiment with reference to the accompanying drawings. The following structure is for the purpose of understanding the examples of the present disclosure, and the scope of the present disclosure is determined solely by the appended claims. The same or equivalent components and parts shown in the various drawings are marked with the same figure marks, and repeated descriptions are appropriately omitted. In addition, for easy understanding, the sizes of the components in the various drawings are appropriately enlarged or reduced for representation. In addition, in each of the drawings, a part of the components that are not important when describing the embodiments will be omitted.

[0021] The water discharge device 1 of this embodiment discharges foam generated by mixing compressed air with mixed water in which liquid containing a foaming component and water are mixed. The water discharge device 1 is mainly installed in a bathroom for use.

[0022] Reference Figure 1 The water outlet device 1 houses pipes and various components inside a rectangular parallelepiped housing 10. In the water outlet device 1, a hose 81 extending from a water supply device 80 is connected to a water supply port 11, and water is supplied from the water supply device 80. The water supply device 80 has, for example, a temperature adjustment function, a flow rate adjustment function, and a switching function between water flow and water stop.

[0023] The water outlet device 1 has a hose 82 connected to a nozzle 83 at the water outlet 12. The water outlet device 1 discharges either water or foam from the water outlet 12, and discharges either water or foam from the nozzle 83 to the outside through the hose 82. The water outlet device 1 may also be connected to a device other than the nozzle 83. The water outlet device 1 may also discharge either water or foam directly to the outside. The water outlet device 1 may also be a structure including a discharge component such as the nozzle 83. The water outlet device 1 may also have all or part of the functions of the water supply device 80.

[0024] The water outlet device 1 is detachably connected to a liquid supply container 2 for supplying liquid containing a foaming component. Figure 1 As shown, a portion of the liquid replenishment container 2 protrudes from the upper surface of the housing 10 covering the outside of the water discharge device 1. In this way, by adopting a structure in which a portion of the liquid replenishment container 2 protrudes from the housing 10, the device can be made compact compared to the case in which a tank of liquid is built in the housing 10. In addition, by adopting a structure in which a portion of the liquid replenishment container 2 protrudes, the remaining amount of liquid in the liquid replenishment container 2 can be easily confirmed.

[0025] The liquid replenishing container 2 can be easily attached and detached by gripping the upper portion of the liquid replenishing container 2. By being able to easily replace the liquid replenishing container 2, the enjoyment of changing the type of liquid according to the mood of the day can be realized.

[0026] The front surface of the housing 10 is provided with an operation button 13 that can be operated by the user and a display 14 that can be visually observed by the user. The display 14 is composed of components such as an LED and a liquid crystal display. The size of the housing 10 is, for example, 15 cm in height, 20 cm in width, and about 5 cm in depth. The size of the housing 10 is not limited thereto. The remaining amount of liquid in the liquid replenishment container 2 can also be displayed on the display 14. The remaining amount of liquid can be detected using a weight sensor or a water level detection sensor.

[0027] Reference Figure 2 . The water outlet device 1 has a liquid replenishment container 2, a switch 3, a liquid aspirator 4, a foamer 5, a compressor 6, a control circuit unit 8 and a power supply unit 9. The switch 3, the liquid aspirator 4, the foamer 5, the compressor 6, the control circuit unit 8 and the power supply unit 9 are accommodated in a housing 10. The liquid replenishment container 2 can be mounted on a container mounting portion (not shown) provided in the housing 10. A check valve 90 is connected downstream of the water supply port 11, and the check valve 90 is connected to the switch 3 through a flow path 110. The check valve 90 prevents water from flowing back from the flow path 110 to the water supply port 11 side.

[0028] The switch 3 switches water flow to the two directions of the flow paths 111 and 112 branching from the flow path 110. The flow path 111 on one side is connected to the foamer 5. The check valve 91 provided in the flow path 111 prevents the backflow from the foamer 5 side to the switch 3 side. The foamer allows the water from the flow path 111 to flow to the flow path 115. The flow path 115 is connected to the water outlet 12.

[0029] A flow limiter 93 and a check valve 94 are disposed on the other side of the flow path 112. The flow path 112 is connected to the liquid aspirator 4. The flow limiter 93 is composed of a constant flow valve, a pressure reducing valve, etc. The flow limiter 93 adjusts the flow rate on the downstream side to about 1 liter per minute, for example. The check valve 94 prevents backflow from the liquid aspirator 4 side to the switch 3 side.

[0030] The liquid aspirator 4 is, for example, an ejector. The liquid aspirator 4 aspirates the liquid supplied from the liquid replenishment container 2 and mixes it with water flowing in from the flow path 112 to flow to the flow path 113 on the downstream side. The liquid replenishment container 2 and the liquid aspirator 4 are connected via the flow path 114. A check valve 95 is provided in the flow path 114 to prevent backflow from the liquid aspirator 4 side to the liquid replenishment container 2 side.

[0031] In addition to the above-mentioned flow path 111, the flow path 113 is also connected to the foamer 5. The flow path 113 is connected to the foamer 5. The flow path 113 supplies mixed water in which a liquid containing a foaming component and water are mixed to the foamer 5. The foamer 5 generates foam by mixing compressed air from the compressor 6 with the mixed water supplied from the flow path 113 and causing the mixed water to flow to the flow path 115. The compressor 6 supplies compressed air to the foamer 5 through the air flow path 116. A check valve 96 is arranged in the flow path 116 to prevent backflow from the foamer 5 side to the compressor 6 side. The water discharge device 1 forms fine bubbles through the foamer 5 and releases fine foam.

[0032] The control circuit unit 8 receives power supply from the power supply unit 9 and operates the switch 3, the compressor 6, etc. The power supply unit 9 is, for example, various batteries such as lithium ion batteries. The power supply unit 9 may also be composed of a power supply circuit for using power supplied from a household power supply. The control circuit unit 8 receives operation input from the connected operation button 13 and operates the switch 3, the compressor 6, etc. In addition, the control circuit unit 8 displays information such as the operating state of the water dispenser 1 and the remaining amount of the power supply unit 9 on the display 14.

[0033] The water discharge device 1 can switch between a mode of discharging water from the water outlet 12 (water discharge mode) and a mode of discharging foam from the water outlet 12 by operating the operation button 13. In the water discharge mode, water supplied from the water supply port 11 flows to the flow paths 111 and 115 through the switch 3, and is discharged from the water outlet 12 without generating foam. On the other hand, in the mode of discharging foam (foam discharge mode), water supplied from the water supply port 11 flows to the flow paths 112, 113, and 115 through the switch 3 to generate foam, and is discharged from the water outlet 12.

[0034] Reference Figure 3 and Figure 4 The foaming device 5 will be described. The foaming device 5 generates foam by stirring the fluid flowing in from the inlet with the stirring portion, and causes the foam to flow out from the outflow port.

[0035] The foamer 5 includes a foamer body 40, a mixed liquid inlet 41, an air inlet 42, a water inlet 43, and an outlet 44. The foamer body 40 has a substantially cylindrical shape. The mixed liquid inlet 41, the air inlet 42, and the water inlet 43 are provided on the side of the foamer body 40. The outlet 44 is provided at the upper portion of the foamer body 40.

[0036] The mixed liquid inlet 41 is connected to a flow path 113, and mixed water containing a liquid containing a foaming component and water is mixed with the liquid aspirator 4 and flows into the mixed liquid inlet 41. The air inlet 42 is connected to a flow path 116, and compressed air flows into the air inlet 42 from the compressor 6. The upper water inlet 43 is connected to a flow path 111, and upper water from the water supply port 11 flows into the upper water inlet 43. The outlet 44 is connected to a flow path 115. The tap water or foam flowing out of the outlet 44 is sent to the water outlet 12 via the flow path 115, and is discharged from the water outlet 12.

[0037] Reference Figure 5 and Figure 6 The internal structure of the foamer 5 is described. The foamer main body 40 has a hollow substantially cylindrical shape and has an opening 60 at one end (lower end). The lower end of the foamer main body 40 is sealed liquid-tightly by the cover 49. The shape of the foamer main body 40 is not limited to a hollow substantially cylindrical shape, as long as it is a hollow substantially cylindrical shape. The shape of the foamer main body 40 may also be, for example, a hollow substantially square cylindrical shape. The foamer main body 40 has an axis Ax in the longitudinal direction.

[0038] A mixed liquid inlet 41 , an air inlet 42 , and an upper water inlet 43 are provided on the side surface of the foamer body 40 . The mixed liquid inlet 41 , the air inlet 42 , and the upper water inlet 43 are communicated with the internal space of the foamer body 40 .

[0039] A pre-stirring section 45 and a main stirring section 46 located downstream (vertically above) of the pre-stirring section 45 are provided in the internal space of the foamer main body 40. The pre-stirring section 45 and the main stirring section 46 constitute a stirring section of the foamer 5. The mixed liquid inlet 41, the air inlet 42, and the upper water inlet 43 are connected to the pre-stirring section 45. Therefore, the fluid from the mixed liquid inlet 41, the air inlet 42, and the upper water inlet 43 first flows into the pre-stirring section 45.

[0040] In the water discharge mode, the upper water flows into the pre-stirring section 45 from the upper water inlet 43. The upper water passes through the pre-stirring section 45 and the main stirring section 46 directly (without generating foam) and is discharged from the outlet 44.

[0041] In the foam release mode, the mixed water flows into the pre-mixing section 45 from the mixed liquid inlet 41, and the compressed air flows into the pre-mixing section 45 from the air inlet 42. When flowing into the pre-mixing section 45, the mixed water is mixed with the compressed air to form a gas-liquid mixed fluid. The pre-mixing section 45 pre-mixes the gas-liquid mixed fluid flowing from the mixed liquid inlet 41 and the air inlet 42 in a direction perpendicular to the axis Ax direction of the foamer main body 40. Through this pre-mixing, the homogenization and refinement of the gas-liquid mixed fluid are promoted. Then, the gas-liquid mixed fluid that has passed through the pre-mixing section 45 flows into the formal mixing section 46. The formal mixing section 46 formally mixes the fluid that flows in the axis Ax direction through the pre-mixing section 45. Through this formal mixing, a fine and homogeneous foam fluid (foaming fluid) is generated. The foam fluid generated by the pre-mixing section 45 and the formal mixing section 46 flows out from the outflow port 44 provided at the upper part of the foamer main body 40 to the outside of the foamer main body 40.

[0042] The pre-stirring section 45 and the main stirring section 46 each include porous bodies arranged in multiple stages along the flow direction of the fluid. Specifically, the pre-stirring section 45 includes a plurality of pre-stirring porous bodies 48 having a relatively large opening rate. The main stirring section located downstream of the pre-stirring section 45 includes a plurality of main stirring porous bodies 47 having a relatively small opening rate.

[0043] The "porous body" used in this specification includes porous members such as ceramic materials and sintered metal materials, woven fabrics or nonwoven fabrics of metal fibers or resin fibers, and mesh bodies (such as metal meshes) composed of metal wires or resin wires.

[0044] The pre-stirring porous body 48 includes a first pre-stirring porous body 48a and a second pre-stirring porous body 48b. The first pre-stirring porous body 48a and the second pre-stirring porous body 48b are stacked in a direction perpendicular to the axis Ax direction with a predetermined interval. The first pre-stirring porous body 48a and the second pre-stirring porous body 48b are concentrically arranged to surround the axis Ax. In more detail, the first pre-stirring porous body 48a is arranged radially outwardly relative to the axis Ax, and the second pre-stirring porous body 48b is arranged radially inwardly.

[0045] The main stirring section 46 includes seven main stirring porous bodies 47. The seven main stirring porous bodies 47 are stacked in the direction of the axis Ax at predetermined intervals. The number of the main stirring porous bodies 47 is not particularly limited.

[0046] In the present embodiment, the porous body 47 for main stirring and the porous body 48 for preliminary stirring are attached to the porous body accommodating member 52 .

[0047] The stirring action of the pre-stirring section 45 and the main stirring section 46 is described. The gas-liquid mixed fluid from the mixed liquid inlet 41 and the air inlet 42 flows in a direction perpendicular to the axis Ax direction of the foamer main body 40 and flows into the pre-stirring section 45. The gas-liquid mixed fluid flowing into the pre-stirring section 45 is in a roughly stirred state. The gas-liquid mixed fluid is stirred by the turbulent flow (rotating flow caused by countless non-uniform vortices) generated when the pre-stirring porous body 48 with a relatively large opening rate provided in the pre-stirring section 45 passes through, which promotes homogenization and miniaturization. This stirring is "pre-stirring". Then, the gas-liquid mixed fluid, which is homogenized and miniaturized by the pre-stirring section 45, changes direction above the axis Ax direction of the foamer main body 40 and flows into the main stirring section 46. The gas-liquid mixed fluid flowing into the main stirring section 46 flows in the direction of the axis Ax of the foamer main body 40, and is further stirred by the turbulent flow generated when the main stirring porous body 47 with a relatively small opening rate provided in the main stirring section 46 passes through, and becomes a fine and homogeneous foam fluid (foaming fluid) corresponding to the opening rate of the main stirring porous body 47 provided in the main stirring section 46. This stirring is "formal stirring". By using the pre-stirring section 45 provided with a pre-stirring porous body 48 with a relatively large opening rate and the main stirring section 46 provided with a main stirring porous body 47 with a relatively small opening rate to stir the gas-liquid mixed fluid in sequence, it is possible to suppress the pressure loss caused by the amplification of useless turbulence, and also prevent the reduction of the limiting flow rate. In this way, a fine and homogeneous foam fluid can be efficiently generated.

[0048] As described above, the cover 49 seals the opening 60 at the lower end of the substantially cylindrical foamer main body 40 in a liquid-tight manner. The cover 49 is detachably provided at the opening 60 of the foamer main body 40. An external thread 50 is cut on the outer peripheral surface of the cover 49, and an internal thread 51 is cut on the inner surface of the foamer main body 40. The cover 49 is fixed to the foamer main body 40 by screwing the external thread 50 and the internal thread 51 together.

[0049] When removing the cover 49 from the foamer body 40, the cover 49 is gripped and rotated relative to the foamer body 40. Thus, the screw connection between the male thread 50 and the female thread 51 is released, and the cover 49 can be removed from the foamer body 40.

[0050] Reference Figure 7 and Figure 8 . Figure 7The figure shows a state where the porous body storage component 52 and the cover 49 are removed from the foamer main body 40. The porous body storage component 52 has a hollow substantially cylindrical shape formed to be inserted into the internal space of the foamer main body 40. A recess 52a is provided at the lower end of the porous body storage component 52. In addition, a convex portion 49a is provided at the upper end of the cover 49. By fitting the convex portion 49a of the cover 49 into the recess 52a of the porous body storage component 52, the porous body storage component 52 and the cover 49 can be assembled as one. By assembling the porous body storage component 52 and the cover 49 as one, when the cover 49 is removed from the foamer main body 40, the porous body storage component 52 can also be removed from the foamer main body 40 together. Figure 8 The figure shows a state where the convex portion 49 a of the lid 49 is removed from the concave portion 52 a of the porous body storage member 52 and the lid 49 is removed from the porous body storage member 52 .

[0051] In the present embodiment, the formal stirring porous body 47a on the most downstream side (the uppermost position) of the seven formal stirring porous bodies 47 is integrally formed with the porous body storage part 52. The formal stirring porous body 47a is arranged at the opening 52b at the upper end of the porous body storage part 52. In addition, the first pre-stirring porous body 48a on the upstream side (located radially outward relative to the axis Ax) of the two pre-stirring porous bodies 48 is also integrally formed with the porous body storage part 52. On the side surface of the lower part of the porous body storage part 52, a plurality of openings 56 for introducing the fluid from the mixed liquid inlet 41, the air inlet 42 and the upper water inlet 43 into the porous body storage part 52 are provided along the circumferential direction. The first pre-stirring porous body 48a is arranged in each opening 56. In this way, the integral formation of a part of the porous body with the porous body storage part 52 is conducive to the miniaturization of the foamer 5.

[0052] The six main stirring porous bodies 47 other than the main stirring porous body 47a are accommodated in the porous body accommodating member 52. The main stirring porous bodies 47 are held by porous body holders 54, respectively. Fig. 9 The porous body 47 for main stirring is shown in a state held by the porous body holder 54. The porous body holder 54 is an annular member having a predetermined thickness, and holds the porous body 47 for main stirring at the center portion in the thickness direction.

[0053] like Figure 5 and Figure 6As shown, a plurality of porous body holders 54 are stacked to accommodate a plurality of porous bodies 47 for formal stirring in the porous body receiving part 52. The interval between adjacent porous bodies 47 for formal stirring is determined by the thickness of the porous body holder 54. In consideration of assembly and disassembly, the radial size of the porous body holder 54 may be formed to be slightly smaller than the inner diameter of the porous body receiving part 52. The inner diameter of the opening 52b at the upper end of the porous body receiving part 52 is formed to be narrower than the outer diameter of the porous body holder 54. Thus, the porous body holder 54 inserted into the porous body receiving part 52 from the opening 52d at the lower end of the porous body receiving part 52 is stopped in front of the porous body 47a for formal stirring provided at the opening 52b at the upper end.

[0054] The second pre-stirring porous body 48b is stored on the upstream side of the porous body storage member 52 (positioned below the main stirring porous body 47). The second pre-stirring porous body 48b is provided on the side of the hollow substantially cylindrical support member 62. The support member 62 provided with the second pre-stirring porous body 48b is inserted into the porous body storage member 52 from the opening 52d. When the support member 62 is inserted into the porous body storage member 52, the first pre-stirring porous body 48a and the second pre-stirring porous body 48b are in a state of being stacked in a direction perpendicular to the axis Ax direction.

[0055] The cover 49 is provided with a support portion 49b for supporting the support member 62 provided with the second pre-stirring porous body 48b. When the cover 49 is assembled to the porous body receiving member 52 with the support member 62 inserted into the porous body receiving member 52, the lower end portion 62a of the support member 62 is supported by the support portion 49b of the cover 49. At this time, the plurality of porous body holders 54 are supported by the upper end portion 62b of the support member 62. That is, the cover 49 is assembled to the porous body receiving member 52 with the porous body 47 for main stirring and the second porous body 48b for pre-stirring received in the porous body receiving member 52, so that the porous body 47 for main stirring and the second porous body 48b for pre-stirring can be received and held in the porous body receiving member 52.

[0056] Usually, scale or metal soap is generated in the foamer. Scale (Limescale) is a chalky deposit. Its main component is lime (calcium carbonate) precipitated from water. In particular, hard water contains calcium and magnesium bicarbonate, other salts, etc., so scale is easily generated. Metal soap refers to soap components combined with calcium and magnesium in water. If scale or metal soap is generated in the foamer, it will cause clogging in the porous body, and there will be problems with the homogeneity of the generated foam and reduced flow rate.

[0057] In the foamer 5 of the present embodiment, the cover 49 is first grasped, and the cover 49 is rotated relative to the foamer main body 40, so that the porous body storage member 52 assembled with the cover 49 can be taken out from the foamer main body 40. Then, the cover 49 is removed from the porous body storage member 52 by removing the convex portion 49a of the cover 49 from the concave portion 52a of the porous body storage member 52, thereby taking out the porous body 47 for main stirring and the second porous body 48b for pre-stirring from the porous body storage member 52. Since the porous body 47 for main stirring and the second porous body 48b for pre-stirring can be taken out from the porous body storage member 52, scale and metal soap attached to the porous body 47 for main stirring and the second porous body 48b for pre-stirring can be easily cleaned using a brush or the like. The main stirring porous body 47a and the first preliminary stirring porous body 48a formed integrally with the porous body housing member 52 are also exposed to the outside, so they are easy to clean with a brush etc. Thus, in the water discharge device 1 of this embodiment, the maintainability of the foamer 5 can be greatly improved.

[0058] The foamer 5 used in the water discharge device 1 of the present embodiment has been described above. The foamer 5 includes a pre-stirring section 45 and a main stirring section 46. The pre-stirring section 45 pre-stirs the fluid flowing from the mixed liquid inlet 41 and the air inlet 42 in a direction perpendicular to the axis Ax direction of the foamer main body 40. The main stirring section 46 mainly stirs the fluid flowing in the axis Ax direction of the foamer main body 40 after passing through the pre-stirring section 45. In this way, by configuring the flow path for pre-stirring to be orthogonal to the flow path for main stirring, the foamer 5 can be miniaturized compared to the case where the flow path for pre-stirring and the flow path for main stirring are configured in a single direction. Miniaturization of the foamer 5 is advantageous in miniaturization of the water discharge device 1.

[0059] When a fluid is introduced into the foamer main body 40 from an inlet on the side of the foamer main body 40, a space is required in the foamer main body 40 for the fluid to flow in from the inlet. In the foamer 5 of the present embodiment, the pre-stirring flow path is set in a direction perpendicular to the axis Ax direction of the foamer main body 40, so that pre-stirring is performed in the space where the fluid flows in. By effectively utilizing the internal space of the foamer main body 40 in this way, the foamer 5 can be miniaturized.

[0060] In the foamer 5 of the present embodiment, the fluid from the inlet on the side of the foamer main body 40 can be passed through the pre-stirring part 45 without changing the direction. Thus, compared with the case where the fluid from the inlet on the side of the foamer main body is pre-stirred after changing the direction in the axial direction, the pre-stirring can be performed while suppressing the pressure loss. As a result, the reduction in the limiting flow rate can be suppressed, and a fine and homogeneous foam fluid can be efficiently generated.

[0061] The present invention has been described above based on the embodiments. It will be understood by those skilled in the art that the embodiments are examples, and various modifications and changes can be made within the claims of the present invention, and such modifications and changes are also included in the protection scope of the present invention. Therefore, the description and drawings in this specification are not restrictive, but are treated as examples.

[0062] Industrial Applicability

[0063] The present invention can be used for a water outlet device capable of releasing foam.

[0064] Description of Reference Numerals

[0065] 1: water outlet device, 2: liquid replenishing container, 3: switch, 4: liquid suction device, 5: foamer, 6: compressor, 10: shell, 11: water supply port, 12: water outlet, 40: foamer body, 41: mixed liquid inlet, 42: air inlet, 43: water inlet, 44: outlet, 45: pre-mixing part, 46: main mixing part, 47: porous body for main mixing, 48: porous body for pre-mixing, 49: cover, 52: porous body storage component, 54: porous body bracket.

Claims

1. A water outlet device, comprising a foamer, The foaming device comprises: A foamer body having a hollow substantially cylindrical shape; An inlet port, used to allow fluid to flow into the foamer body; a pre-stirring portion for pre-stirring the fluid flowing from the inlet in a direction perpendicular to the axial direction of the foamer main body; a main stirring section for mainly stirring the fluid flowing in the axial direction after passing through the pre-stirring section; An outflow port allows the foam generated by the preliminary stirring section and the main stirring section to flow out of the foamer main body.

2. The water outlet device according to claim 1, The pre-stirring section includes a plurality of pre-stirring porous bodies having a relatively large opening ratio. The main stirring section includes a plurality of main stirring porous bodies having a relatively small opening ratio.

3. The water outlet device according to claim 2, The plurality of pre-stirring porous bodies are stacked in a direction perpendicular to the axial direction.

4. The water outlet device according to claim 2 or 3, The plurality of pre-stirring porous bodies are arranged so as to surround the longitudinal axis of the foamer main body.

5. The water outlet device according to claim 2 or 3, The plurality of porous bodies for main stirring are stacked in the axial direction.

6. The water outlet device according to claim 2 or 3, The foamer includes a porous body housing member that houses the preliminary stirring porous body and the main stirring porous body.

7. The water outlet device according to claim 6, The porous body for preliminary stirring and a part of the porous body for main stirring are formed integrally with the porous body accommodating member.

8. The water outlet device according to any one of claims 1 to 3, The foamer body has an opening at one end in the axial direction. The foamer includes a cover portion, and the cover portion is detachably provided at the opening of the foamer body portion. The preliminary stirring section and the main stirring section can be taken out from the foamer main body through the opening by removing the cover from the opening of the foamer main body.

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