Foam generating device, intelligent toilet lid and toilet

Abstract

The utility model relates to the technical field of bathroom accessories, in particular to a foam generating device, an intelligent toilet lid and a toilet. The foam generating device comprises a water supply mechanism, a solvent supply mechanism, a mixing mechanism, a foaming mechanism and a foam spraying mechanism, the water supply mechanism is used for being communicated with a water source, the solvent supply mechanism is used for storing foam liquid, the mixing mechanism is provided with a mixing inner cavity, and the water supply mechanism and the solvent supply mechanism are both communicated with the mixing inner cavity; the mixing inner cavity, the foaming mechanism and the foam spraying mechanism are sequentially communicated, the mixing inner cavity is further communicated with the foam spraying mechanism, foam and foam mixed liquid are fully mixed to generate a uniform and dense foam shield, the retention time of the foam shield in the toilet bowl is long, and the defecation environment and the defecation experience feeling of a user can be effectively improved. According to the intelligent closestool cover and the closestool, by applying the foam generating device, the foam shield can be more dense, and the defecation experience feeling of a user is effectively improved.

Description

Technical Field

[0001] The utility model relates to the technical field of bathrooms, and in particular to a foam generating device, an intelligent toilet cover and a toilet. Background Art

[0002] With people's demand for the deodorization function of smart toilets, covering the toilet water seal with foam is a better solution. The foam covering the toilet water seal has very obvious anti-splash, anti-stick, anti-odor, and antibacterial functions. The foam protects the toilet environment and human health like a shield, so it is named Foam Shield.

[0003] Existing foam generating devices include a mixer, a foam storage container, a liquid pump, and an air pump. Water and foam liquid are mixed in the mixer to form a mixed liquid, which is then injected with air to form foam. This mixture is then injected into the toilet bowl to form a foam shield. This method results in a high water content in the mixed liquid, poor mixing of the water and foam liquid, and a thinner foam shield. This short-lived foam shield stays in the toilet bowl, significantly impacting the toilet environment and reducing user comfort.

[0004] Therefore, it is urgent to design a new foam generating device, an intelligent toilet lid and a toilet to improve the problems of sparse foam shield and poor toilet experience for users. Utility Model Content

[0005] The first purpose of the present utility model is to provide a foam generating device, which can make the foam shield denser and effectively improve the user's toilet experience.

[0006] To achieve this purpose, the present invention adopts the following technical solutions:

[0007] A foam generating device, comprising:

[0008] Water supply mechanism, used to connect to the water source;

[0009] a solvent supply mechanism for storing foam liquid;

[0010] The mixing mechanism comprises a mixing inner cavity, and the water supply mechanism and the solvent supply mechanism are both connected to the mixing inner cavity;

[0011] a foaming mechanism, communicating with the mixing cavity; and

[0012] The foam ejection mechanism, the foaming mechanism and the mixing cavity are all connected with the foam ejection mechanism.

[0013] In an optional solution, the foam spraying mechanism includes:

[0014] A foam connector, wherein the foam connector is provided with an injection cavity, a venturi injection port, and an injection cavity that are sequentially connected, the injection cavity is connected to the mixing cavity, and the cross-sectional area of ​​the venturi injection port is smaller than the cross-sectional area of ​​the injection cavity and the cross-sectional area of ​​the injection cavity; and

[0015] The foam spraying component is communicated with the spraying chamber.

[0016] In an optional solution, the Venturi nozzle includes an acceleration section and an injection section, the injection chamber, the acceleration section, the injection section and the injection chamber are sequentially connected, the cross-sectional area S1 of the acceleration section is smaller than the cross-sectional area S2 of the injection chamber, and the cross-sectional area S3 of the injection section gradually increases along the flow direction of the fluid; and / or

[0017] The spray chamber has a spray outlet, and the foam spraying mechanism further comprises a foaming net, which is arranged in the spray chamber or downstream of the spray outlet.

[0018] In an optional solution, on the longitudinal cross-section of the foaming connector, the intersection of the acceleration section and the injection section has a first endpoint A, the injection chamber has a second endpoint B at the end away from the Venturi injection port, the first endpoint A and the second endpoint B are located on the same side of the centerline Lc of the Venturi injection port, the line connecting the first endpoint A and the second endpoint B is a first line L1, and the angle between the oblique line segment of the longitudinal cross-section of the injection section and the first line L1 is α, where 5°≤α≤10°; and / or

[0019] The foaming net includes a frame and a net, the frame is provided with a through channel, and the net is arranged in the through channel; and / or

[0020] There are at least two foaming nets, and the at least two foaming nets are arranged in sequence along the flow direction of the fluid; and / or

[0021] One of the foaming connector and the foam spraying member includes an end portion, the end portion is inserted into the other of the two, the other of the two includes a limiting portion, the foaming net is located inside the other of the two and is clamped by the limiting portion and the end portion; and / or

[0022] The foaming connecting piece is plugged into the foam spraying piece. The foam spraying mechanism further comprises a sealing piece which is arranged between the foaming connecting piece and the foam spraying piece.

[0023] In an optional solution, the foam generating device further comprises:

[0024] The valve body, the mixing cavity and the foam spraying mechanism are connected through the valve body, and the valve body only allows the fluid in the mixing cavity to pass through and enter the foam spraying mechanism.

[0025] In an optional solution, the mixing mechanism and the foam ejecting mechanism cooperate to form an accommodating space, and the mixing mechanism is provided with a connecting hole respectively connected to the mixing cavity and the accommodating space, and the foam ejecting mechanism is connected to the accommodating space; the valve body is arranged in the accommodating space and is located between the connecting hole and the foam ejecting mechanism, and the valve body includes a sealing part and an elastic part, and the elastic part can switch between a first state in which the sealing part blocks the connecting hole and a second state in which the sealing part opens the connecting hole.

[0026] In an optional solution, the water supply mechanism includes a pressure reducing valve and a distribution valve, and the water source, the pressure reducing valve, the distribution valve and the mixing chamber are sequentially connected; and / or

[0027] The solvent supply mechanism includes a solvent storage mechanism and a fluid driving mechanism. The solvent storage mechanism, the fluid driving mechanism and the mixing cavity are sequentially connected.

[0028] In an optional solution, the foam generating device further includes a liquid level detection mechanism and an alarm mechanism, wherein the liquid level detection mechanism is disposed in the solvent supply mechanism and is configured to detect the liquid level of the foam liquid in the solvent supply mechanism, and the alarm mechanism is communicatively connected to the liquid level detection mechanism, and the alarm mechanism is configured to sound an alarm when the liquid level detected by the liquid level detection mechanism is lower than a preset liquid level; and / or

[0029] The foam generating device further comprises a seating detection mechanism, and the pressure reducing valve, the distribution valve, the fluid driving mechanism and the foaming mechanism are respectively communicatively connected with the seating detection mechanism.

[0030] In an optional solution, the mixing mechanism further includes a stirring blade, which is rotatably disposed in the mixing cavity; and / or

[0031] The mixing mechanism includes a water inlet, a liquid inlet, a first mixing liquid outlet and a second mixing liquid outlet, all of which are connected to the mixing cavity. The water inlet is connected to the water supply mechanism, the liquid inlet is connected to the solvent supply mechanism, the first mixing liquid outlet is connected to the foaming mechanism, and the second mixing liquid outlet is connected to the foam spraying mechanism.

[0032] In an optional solution, the foaming mechanism includes a pump body and an air port, a liquid port and a bubble outlet connected to the interior thereof, the liquid port is connected to the first mixed liquid outlet, the bubble outlet is connected to the foam spraying mechanism, and the air port is connected to the external environment.

[0033] The second purpose of the present utility model is to provide an intelligent toilet seat, which can make the foam shield denser and effectively improve the user's toilet experience.

[0034] To achieve this purpose, the present invention adopts the following technical solutions:

[0035] A smart toilet seat comprises a movement seat, a seat ring and a seat cover arranged thereon, and the smart toilet seat also comprises the above-mentioned foam generating device.

[0036] In an optional solution, the movement seat includes a movement seat body and a liquid filling cover movably connected thereto. A liquid filling tank is provided on the movement seat body. The solvent supply mechanism includes a liquid filling tube, which is plugged into the movement seat, and part of the liquid filling tube is accommodated in the liquid filling tank.

[0037] In an optional solution, the liquid adding pipe has a liquid adding port, and the solvent supply mechanism further includes a protective net covering the liquid adding port.

[0038] The third purpose of the present utility model is to provide a toilet that can make the foam shield denser and effectively improve the user's toilet experience.

[0039] To achieve this purpose, the present invention adopts the following technical solutions:

[0040] A toilet comprises the above foam generating device or the above smart toilet cover.

[0041] Beneficial effects of the utility model:

[0042] The foam generating device provided by the utility model includes a water supply mechanism, a solvent supply mechanism, a mixing mechanism, a foaming mechanism and a foam spraying mechanism. The water supply mechanism is used to be connected to a water source, the solvent supply mechanism is used to store foam liquid, the mixing mechanism has a mixing cavity, the water supply mechanism and the solvent supply mechanism are both connected to the mixing cavity, the mixing cavity, the foaming mechanism and the foam spraying mechanism are connected in sequence, and the mixing cavity is also connected to the foam spraying mechanism.

[0043] The foam liquid in the solvent supply mechanism can enter the mixing mechanism, and the water supply mechanism can transport the water flow from the water source to the mixing mechanism. The foam liquid and the water flow form a foam mixture in the mixing mechanism. A part of the foam mixture enters the foaming mechanism to foam and form foam. The foam formed by the foaming mechanism and the other part of the foam mixture are jointly transported to the foam spraying mechanism. The foam formed by the foaming mechanism and the other part of the foam mixture are mixed for the second time in the foam spraying mechanism. The foam and the foam mixture are fully mixed to produce a uniform and dense foam shield. The uniform and dense foam shield flows outward from the foam spraying mechanism. The foaming effect of the generated foam shield is good, and the foam shield stays in the toilet bowl for a long time, which can effectively improve the user's toilet environment and toilet experience.

[0044] The smart toilet lid and toilet provided by the utility model can make the foam shield denser by applying the above foam generating device, thereby effectively improving the user's toilet experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0045] Figure 1 This is a schematic structural diagram of the smart toilet lid provided by an embodiment of the present utility model;

[0046] Figure 2 This is a schematic structural diagram of a foam generating device provided by an embodiment of the present utility model;

[0047] Figure 3 This is a working principle diagram of the foam generating device provided by an embodiment of the utility model;

[0048] Figure 4 is a cross-sectional view of a foam generating device provided by an embodiment of the present utility model;

[0049] Figure 5 This is an exploded view of a foam generating device provided by an embodiment of the present utility model;

[0050] Figure 6 yes Figure 4 A partial enlarged view of the M in the middle;

[0051] Figure 7 It is a partial cross-sectional view of a foam generating device provided by an embodiment of the present utility model;

[0052] Figure 8 It is a structural schematic diagram of the foaming mechanism provided in an embodiment of the utility model;

[0053] Figure 9 This is a partial structural diagram of the movement base provided by an embodiment of the utility model;

[0054] Figure 10 This is a partial structural diagram of the movement base provided by an embodiment of the utility model;

[0055] Figure 11 This is a schematic structural diagram of the liquid filling cap provided by an embodiment of the utility model;

[0056] Figure 12 This is a schematic diagram of the electrical control principle of the foam generating device provided in an embodiment of the utility model.

[0057] In the picture:

[0058] 1000, smart toilet seat;

[0059] 100, foam generating device; 200, movement base; 210, movement base body; 2101, liquid adding tank; 2102, second groove; 2103, rotating hole; 220, liquid adding cover; 2201, liquid adding cover body; 22011, first groove; 2202, rotating shaft; 300, seat ring; 400, seat cover;

[0060] 10. Water supply mechanism; 11. Pressure reducing valve; 12. Distribution valve;

[0061] 20. Solvent supply mechanism; 21. Solvent storage mechanism; 22. Fluid drive mechanism; 23. Liquid adding pipe; 231. Liquid adding port;

[0062] 30. Mixing mechanism; 31. Mixer body; 311. Mixing cavity; 312. Communication hole; 32. Stirring blade; 33. Water inlet; 34. Liquid inlet; 35. First mixing liquid outlet; 36. Second mixing liquid outlet;

[0063] 40. Foaming mechanism; 41. Pump body; 42. Gas port; 43. Liquid port; 44. Bubble outlet; 45. Motor;

[0064] 50. Foam ejection mechanism; 51. Foaming connector; 511. Injection chamber; 512. Venturi ejection port; 5121. Acceleration section; 5122. Injection section; 51221. Longitudinal section oblique line segment; 5123. Intersection position; 513. Injection chamber; 5131. Injection outlet; 514. End; 515. Foam outlet; 52. Foam ejection member; 521. Limiting portion; 522. Foam inlet; 523. Foam outlet; 53. Foaming net; 531. Frame; 5311. Through passage; 532. Net body; 54. Sealing member;

[0065] 60. Valve body; 61. Blocking member; 611. Plug; 612. Plug head; 62. Elastic member;

[0066] 70. Accommodation space;

[0067] 81. Liquid level detection mechanism; 82. Alarm mechanism; 83. Seat detection mechanism; 84. Control mechanism. DETAILED DESCRIPTION

[0068] The technical solution of the present invention is further described below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely for the purpose of explaining the present invention, and are not intended to limit the present invention. It should also be noted that, for ease of description, the accompanying drawings only illustrate portions relevant to the present invention, not all of it.

[0069] In the description of this utility model, unless otherwise specified or limited, the terms "connected," "connect," and "fixed" should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection or electrical connection; direct connection or indirect connection through an intermediate medium; internal communication between two components or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0070] In the present invention, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may include the first and second features being in direct contact, or may include the first and second features being in contact not directly but through another feature between them. Moreover, a first feature being "above," "above," and "above" a second feature may include the first feature being directly above or obliquely above the second feature, or may simply mean that the first feature is higher in level than the second feature. A first feature being "below," "below," and "below" a second feature may include the first feature being directly below or obliquely below the second feature, or may simply mean that the first feature is lower in level than the second feature.

[0071] In the description of this embodiment, the terms "upper," "lower," "left," "right," and other orientations or positional relationships are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely for ease of description and simplified operation. They do not indicate or imply that the devices or components referred to must have, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on the present invention. Furthermore, the terms "first" and "second" are used solely for descriptive purposes and have no special meaning.

[0072] The present disclosure provides a toilet. The toilet of the present disclosure can be a smart toilet or a common non-smart toilet. The present disclosure takes the smart toilet as an example for description. Figure 1 As shown, the toilet includes a toilet bowl (not shown) and a smart toilet lid 1000, wherein the smart toilet lid 1000 includes a movement base 200, a seat ring 300 and a seat cover 400. The movement base 200 is set in the toilet bowl, and the seat ring 300 and the seat cover 400 are respectively movably connected to the movement base 200. When the seat ring 300 is placed in the toilet bowl, the user can sit on the seat ring 300, and the seat cover 400 can switch between a first position that opens the seat ring 300 and a second position that closes the seat ring 300. In addition, the movement base 200 is internally integrated with an electronic control module for controlling various functions of the toilet, including but not limited to cleaning, drying, and foam shield functions.

[0073] With people's demand for toilet deodorization function, covering the water seal of the toilet with foam is a better solution. The foam covering the water seal of the toilet has obvious anti-splash, anti-stick, anti-odor, antibacterial and other functions. The foam protects the toilet environment and human health like a shield, so it is named Foam Shield.

[0074] Existing toilets include a foam generator, which includes a mixer, a foam storage container, a liquid pump, and an air pump. Water and foam liquid are mixed in the mixer to form a mixed liquid. Air is then introduced into the mixer to form foam, which is then injected into the toilet bowl to form a foam shield. This method results in a high water content in the mixed liquid, poor mixing of the water and foam liquid, and a thinner foam shield. The foam shield also stays in the toilet bowl for a short time, significantly affecting the toilet environment and reducing user comfort.

[0075] To solve the above problems, Figure 2 and Figure 3 As shown, the foam generating device 100 of the embodiment of the present disclosure includes a water supply mechanism 10, a solvent supply mechanism 20, a mixing mechanism 30, a foaming mechanism 40 and a foam spraying mechanism 50. The water supply mechanism 10 is used to be connected to a water source, the solvent supply mechanism 20 is used to store foam liquid, the mixing mechanism 30 has a mixing cavity 311, the water supply mechanism 10 and the solvent supply mechanism 20 are both connected to the mixing cavity 311, the mixing cavity 311, the foaming mechanism 40 and the foam spraying mechanism 50 are connected in sequence, and the mixing cavity 311 is also connected to the foam spraying mechanism 50. The foam liquid in the solvent supply mechanism 20 can enter the mixing mechanism 30, and the water supply mechanism 10 can transport the water flow from the water source to the mixing mechanism 30. The foam liquid and the water flow form a foam mixture in the mixing mechanism 30. A part of the foam mixture enters the foaming mechanism 40 to foam and form foam. The foam formed by the foaming mechanism 40 and the other part of the foam mixture are jointly transported to the foam spraying mechanism 50. The foam formed by the foaming mechanism 40 and the other part of the foam mixture are mixed for the second time in the foam spraying mechanism 50. The foam and the foam mixture are fully mixed to produce a uniform and dense foam shield. The uniform and dense foam shield flows outward from the foam spraying mechanism 50. The foaming effect of the generated foam shield is good. After being placed for 60 minutes, the foam amount is still greater than 50%. The foam shield stays in the toilet bowl for a long time, which can effectively improve the user's toilet environment and toilet experience.

[0076] It should be noted that a separate foam generating device 100, a smart toilet lid 1000 using the aforementioned foam generating device 100, a toilet using the aforementioned foam generating device 100, or a toilet using the aforementioned smart toilet lid 1000 are all within the protection scope of the embodiments of the present disclosure.

[0077] In an optional embodiment, if Figure 1 As shown, the foam generating device 100 is located inside the core seat 200, which effectively reduces the occupancy of the external environment of the toilet environment, makes the toilet environment more beautiful as a whole, and facilitates the user to clean the toilet environment.

[0078] In an optional embodiment, if Figure 4and Figure 5 As shown, the foam ejection mechanism 50 includes a foaming connection member 51 and a foam ejection member 52. The foaming connection member 51 is provided with an injection chamber 511, a venturi ejection port 512 and an ejection chamber 513 which are connected in sequence. The injection chamber 511 is connected to the mixing chamber 311, and the foam ejection member 52 is connected to the ejection chamber 513. The cross-sectional area of ​​the venturi ejection port 512 is smaller than the cross-sectional area of ​​the injection chamber 511 and the cross-sectional area of ​​the ejection chamber 513. When the foam mixture in the injection chamber 511 flows through the venturi ejection port 512, the cross-sectional area of ​​the channel is reduced, the speed of the foam mixture increases and negative pressure is generated. This negative pressure causes the foam mixture to foam. The foam mixture is accelerated in the connecting piece 51, and when it flows from the venturi nozzle 512 to the injection chamber 513, the cross-sectional area of ​​the channel increases and the pressure increases, so that the flowing foam mixture can be sprayed from the venturi nozzle 512 to the injection chamber 513 at a high speed and stably, so that the sprayed foam mixture and the foam are better mixed for the second time, and a uniform and dense foam shield is generated through sufficient mixing. The uniform and dense foam shield flows outward from the foam spraying mechanism 50, and the foam shield generated has a good foaming effect. After being placed for 60 minutes, the foam amount is still greater than 50%. The foam shield stays in the toilet bowl for a long time, which can effectively improve the user's toilet environment and toilet experience.

[0079] In an optional embodiment, if Figure 6 and Figure 7 As shown, the Venturi jet 512 includes an acceleration section 5121 and an injection section 5122. The injection chamber 511, acceleration section 5121, injection section 5122, and injection chamber 513 are sequentially connected. The cross-sectional area S1 of the acceleration section 5121 is smaller than the cross-sectional area S2 of the injection chamber 511. The cross-sectional area S3 of the injection section 5122 gradually increases along the flow direction of the fluid. When the foam mixture enters the linear acceleration section 5121, the flow velocity of the foam mixture is increased, causing the high-speed foam mixture to diffuse and spray from the injection section 5122, forming a foam mixture spray area, which facilitates secondary mixing of the foam mixture with the foam. It should be noted that the cross-sectional area S1 remains unchanged or gradually decreases along the flow direction of the foam mixture. By setting the cross-sectional area S1, the acceleration section 5121 can achieve a good acceleration effect on the foam mixture within it.

[0080] In an optional embodiment, if Figure 6As shown, on the longitudinal section of the foaming connector 51, the intersection position 5123 of the acceleration section 5121 and the injection section 5122 has a first endpoint A, and the injection chamber 513 has a second endpoint B at one end away from the Venturi injection port 512. The first endpoint A and the second endpoint B are located on the same side of the center line Lc of the Venturi injection port 512, and the line connecting the first endpoint A and the second endpoint B is the first line L1. The angle between the longitudinal section oblique section 51221 of the injection section 5122 and the first line L1 is α, wherein 5°≤α≤10°, which can avoid the problem of the sprayed mixed foam liquid being too concentrated or too dispersed and easily adhering to the inner wall of the injection chamber 513, thereby ensuring a good mixing effect between the mixed foam and the foam.

[0081] It should be noted that when α is less than 5°, the sprayed foam mixture is too concentrated, resulting in a reduced foam volume. When α is greater than 10°, the sprayed foam mixture is too diffuse, easily adhering to the inner wall of the spray chamber 513 and affecting the spraying effect. Therefore, this optional embodiment, by setting the angle α, optimizes the diffusion area of ​​the foam mixture sprayed from the spray section 5122, ensuring that the foam mixture is neither too concentrated nor too dispersed. This allows the foam mixture to more fully collide and mix with the foam, effectively improving the spraying and mixing effect. The resulting foam shield has a better foaming effect, while also preventing excess liquid from remaining in the foam spraying mechanism 50, effectively increasing the utilization rate of the foam liquid.

[0082] In an optional embodiment, if Figures 4 to 6 As shown, the injection chamber 513 has an injection outlet 5131, which is connected to the foam injection component 52. The foam ejection mechanism 50 also includes a foaming net 53, which is arranged in the injection chamber 513 or downstream of the injection outlet 5131. The setting of the foaming net 53 can play a screening and foaming role, so that the foam ejected by the foam injection component 52 is more uniform.

[0083] In an optional embodiment, if Figure 5 As shown, the foaming net 53 includes a frame 531 and a net 532. A through channel 5311 is opened on the frame 531, and the net 532 is arranged in the through channel 5311. The frame 531 can better support and tension the net 532, thereby achieving better screening and foaming effects of the net 532.

[0084] In an optional embodiment, the mesh size of the mesh body 532 is 40-100 meshes, which can achieve better screening and foaming effects.

[0085] In an optional embodiment, if Figures 4 to 6As shown, there are at least two foaming nets 53, and at least two foaming nets 53 are arranged in sequence along the flow direction of the fluid. The arrangement of more foaming nets 53 can further improve the screening and foaming effects of the foaming nets 53, and can make the foam sprayed by the foam spraying part 52 more uniform and denser.

[0086] In an optional embodiment, if Figure 6 As shown, the foaming connector 51 includes an end portion 514, which is inserted into the foam injection member 52. The foam injection member 52 includes a limiting portion 521. The foaming net 53 is located inside the foam injection member 52 and is clamped by the limiting portion 521 and the end portion 514. The limiting portion 521 and the end portion 514 can achieve a good fixing effect on the position of the foaming net 53, avoiding the position displacement of the foaming net 53 during use, and ensuring that the foaming net 53 always has a good screening and foaming effect. Figure 4 As shown, the foam spraying member 52 includes a foam inlet 522 and a foam outlet 523 , and the end portion 514 is plugged into the foam inlet 522 , and the foam formed after final mixing is discharged through the foam outlet 523 .

[0087] In an optional embodiment, the foam injection component 52 may include an end portion 514, which is inserted into the foam connector 51. The foam connector 51 includes a limiting portion 521. The foaming net 53 is located inside the foam connector 51 and is clamped by the limiting portion 521 and the end portion 514. The above-mentioned effect can also be achieved.

[0088] In an optional embodiment, if Figure 6 As shown, the foam connector 51 is plugged into the foam spraying member 52, and the foam spraying mechanism 50 also includes a seal 54, which is disposed between the foam connector 51 and the foam spraying member 52. The seal 54 prevents the liquid in the foam spraying mechanism 50 from leaking out through the gap between the foam connector 51 and the foam spraying member 52, thereby preventing the leaked liquid from contaminating the toilet environment and ensuring a consistently good toilet environment for the user. For example, the seal 54 can be an annular sealing ring that is sleeved around the outer circumference of the foam connector 51, thereby achieving a consistently good sealing effect between the foam connector 51 and the foam spraying member 52 along the circumferential direction.

[0089] In an optional embodiment, an annular accommodating groove may be provided on at least one of the foam connector 51 and the foam injection member 52. The annular sealing ring is accommodated in the annular accommodating groove, which can achieve a consistently good positioning effect for the annular sealing ring, ensuring a good sealing effect between the foam connector 51 and the foam injection member 52. In addition, the provision of the annular sealing ring can also achieve a quick and accurate positioning and installation effect of the annular sealing ring on the foam connector 51 or the foam injection member 52.

[0090] In an optional embodiment, if Figure 6 As shown, the foaming connector 51 and the foam spraying member 52 are detachably connected, enabling quick assembly and disassembly of the foaming net 53. For example, the foaming connector 51 and the foam spraying member 52 can be fastened by snap-fitting, threaded fitting, magnetic fitting, or fixed with a fixed connector to achieve quick assembly and disassembly of the foaming connector 51 and the foam spraying member 52.

[0091] In an optional embodiment, if Figure 4 and Figure 5 As shown, the foam generating device 100 further includes a valve body 60, through which the mixing chamber 311 and the foam ejection mechanism 50 are connected. The valve body 60 only allows the foam mixture in the mixing chamber 311 to pass through and enter the foam ejection mechanism 50, effectively preventing the foam mixture in the foam ejection mechanism 50 from flowing back into the mixing chamber 311, thereby ensuring that the foam ejection mechanism 50 ejects foam effectively. For example, the valve body 60 may be a one-way valve, a solenoid valve, or the like. All structures capable of achieving a one-way flow of the foam mixture in the mixing chamber 311 toward the foam ejection mechanism 50 are within the scope of protection of the embodiments of the present disclosure.

[0092] In an optional embodiment, if Figure 4 and Figure 5 As shown, the mixing mechanism 30 and the foam ejecting mechanism 50 cooperate to form an accommodating space 70. The mixing mechanism 30 is provided with a connecting hole 312 which is respectively connected to the mixing cavity 311 and the accommodating space 70, and the foam ejecting mechanism 50 is connected to the accommodating space 70; the valve body 60 is arranged in the accommodating space 70 and is located between the connecting hole 312 and the foam ejecting mechanism 50. The valve body 60 includes a blocking member 61 and an elastic member 62. The elastic member 62 can switch between a first state in which the blocking member 61 blocks the connecting hole 312 and a second state in which the blocking member 61 opens the connecting hole 312. When the pressure of the foam mixture in the mixing chamber 311 is high, and when the pressure of the foam mixture in the mixing chamber 311 exceeds the elastic force of the elastic member 62, the foam mixture in the mixing chamber 311 can push the blocking member 61 to switch the elastic member 62 from the first state to the second state. The foam mixture with high pressure can be sprayed from the venturi nozzle 512 into the spray chamber 513 at a high speed and stability. The sprayed foam mixture and foam can be well mixed secondary, and through thorough mixing, a uniform and dense foam shield is produced. The uniform and dense foam shield flows outward from the foam spraying mechanism 50. The foam shield has a good foaming effect. After 60 minutes of placement, the foam volume is still greater than 50%. The foam shield stays in the toilet bowl for a long time, which can effectively improve the user's toilet environment and toilet experience. For example, the elastic member 62 can be a spring, rubber, a small cylinder, etc.

[0093] Specifically, if Figure 4 As shown, the sealing member 61 includes a plug 611 and a plug head 612. The plug head 612 is provided at one end of the plug 611 close to the connecting hole 312. The plug head 612 is used to seal the connecting hole 312. The elastic member 62 is a spring. One end of the spring is sleeved on the plug 611 and abuts against the plug head 612, and the other end of the spring abuts against the end of the foam spraying mechanism 50. Through the cooperation of the spring and the plug 611, the spring and the sealing member 61 can be prevented from separating, and the spring can be ensured to always be in good close contact with the sealing member 61.

[0094] In an optional embodiment, if Figure 4 As shown, the cross-sectional area of ​​the plug head 612 is larger than the inner diameter of the spring, which can avoid the problem of the spring and the blocking member 61 being loosened and separated.

[0095] In an optional embodiment, if Figure 2 and Figure 3 As shown, the water supply mechanism 10 includes a pressure reducing valve 11 and a distribution valve 12. The water source, pressure reducing valve 11, distribution valve 12, and mixing chamber 311 are sequentially connected. The provision of pressure reducing valve 11 can help reduce the water pressure of the water source, thereby achieving a better protection effect for the foam generating device 100. The provision of distribution valve 12 can ensure that a fixed amount of water flows into the mixing chamber 311. The fixed amount of water flows and the corresponding fixed amount of foam liquid are mixed to obtain a desired mixing ratio. The user can adjust the desired mixing ratio according to actual needs.

[0096] In an optional embodiment, if Figure 2 and Figure 3 As shown, the solvent supply mechanism 20 includes a solvent storage mechanism 21 and a fluid drive mechanism 22. The solvent storage mechanism 21, the fluid drive mechanism 22, and the mixing chamber 311 are sequentially connected. The configuration of the fluid drive mechanism 22 enables the foam liquid in the solvent storage mechanism 21 to enter the mixing chamber 311 more effectively. For example, the fluid drive mechanism 22 can be a fluid pump. Specifically, the fluid drive mechanism 22 can be a peristaltic pump, which has high precision, low shear force, good sealing, and simple maintenance.

[0097] In an optional embodiment, if Figure 9 As shown, the solvent supply mechanism 20 includes a liquid adding tube 23, one end of which is connected to the solvent storage mechanism 21, and the other end of the liquid adding tube 23 is plugged into the movement seat 200. The user can replenish foam liquid into the solvent storage mechanism 21 through the other end of the liquid adding tube 23, so that the user can replenish foam liquid to the solvent storage mechanism 21 conveniently and quickly, and the operation is convenient.

[0098] In an optional embodiment, if Figure 1 and Figure 10 As shown, the movement base 200 includes a movement base body 210 and a liquid filling cover 220 movably connected thereto. The movement base body 210 is provided with a liquid filling groove 2101, and a portion of the liquid filling tube 23 is accommodated in the liquid filling groove 2101. When the liquid filling cover 220 is in a blocked state, the liquid filling groove 2101 is blocked by the liquid filling cover 220, thereby shielding the liquid filling tube 23 and ensuring the aesthetics of the movement base 200. In addition, the liquid filling cover 220 can also provide a good protection for the liquid filling tube 23, preventing external impurities from entering through the liquid filling port 231 of the liquid filling tube 23, thereby preventing external impurities from contaminating the foam liquid in the solvent storage mechanism 21.

[0099] In an optional embodiment, if Figure 1 and Figure 2 As shown, the liquid adding pipe 23 has a liquid adding port 231 , and the solvent supply mechanism 20 further includes a protective net (not shown in the figure), which covers the liquid adding port 231 and can further prevent foreign matter from falling into the solvent storage mechanism 21 .

[0100] In an optional embodiment, if Figure 10 and Figure 11 As shown, the liquid filling cap 220 includes a liquid filling cap body 2201 and a rotating shaft 2202 provided thereon. The rotating shaft 2202 is rotatably connected to the movement base body 210. The user can quickly switch the state of the liquid filling cap 220 by flipping the liquid filling cap body 2201. Of course, in other optional embodiments, the liquid filling cap 220 can also be slidably connected to the movement base body 210 or other types of movable connections. Specifically, Figure 9 As shown, a rotation hole 2103 is opened on the movement seat body 210, and the rotating shaft 2202 is inserted into the rotation hole 2103, so as to realize the rotation of the liquid filling cover 220 relative to the movement seat body 210.

[0101] In an optional embodiment, if Figures 9 to 11 As shown, a first groove 22011 is provided at one end of the liquid filling cap 220 away from the rotating shaft 2202, and a second groove 2102 is provided on the movement seat body 210. The notch of the first groove 22011 and the notch of the second groove 2102 are arranged opposite to each other, and the notch of the first groove 22011 and the notch of the second groove 2102 are combined to form a gripping groove. The user can insert his fingers into the gripping groove, which makes it convenient for the user to pry up the closed liquid filling cap 220, thereby realizing a quick flipping action of the liquid filling cap 220.

[0102] In an optional embodiment, if Figure 12As shown, the foam generating device 100 further includes a liquid level detecting mechanism 81, an alarm mechanism 82 and a control mechanism 84. The liquid level detecting mechanism 81 is disposed in the solvent supply mechanism 20 and is used to detect the liquid level of the foam liquid in the solvent supply mechanism 20. The alarm mechanism 82 and the liquid level detecting mechanism 81 are respectively communicated with the control mechanism 84. The alarm mechanism 82 is used to sound an alarm when the liquid level detected by the liquid level detecting mechanism 81 is lower than a preset liquid level, thereby preventing the foaming effect of the foam shield from being affected or the foam shield function from being unable to be realized due to insufficient foam liquid in the solvent storage mechanism 21.

[0103] Specifically, the liquid level detection mechanism 81 can be a magnetic flap level gauge, a magnetostrictive level gauge, a float level gauge, an ultrasonic level gauge, a radar level gauge, a hydrostatic level gauge, a capacitive level gauge, a level transmitter, or the like. All mechanisms capable of detecting the liquid level of the foam liquid within the solvent storage mechanism 21 are within the scope of protection of this optional embodiment. It should be noted that the liquid level detection mechanism 81 can be adaptively disposed within, outside, on a side wall, or on a bottom wall of the solvent storage mechanism 21, depending on its specific type.

[0104] It should be noted that the alarm mechanism 82 can be a buzzer, a speaker, an indicator light, an electronic voice device, an LED light or other mechanism capable of providing an alarm. Through the alarm action of the alarm mechanism 82, the user can be informed to add foam liquid in time.

[0105] In an optional embodiment, the control mechanism 84 can also send an alarm signal to the user's mobile terminal through the wireless communication module to realize remote alarm work, thereby further informing the user to add liquid in a timely manner, avoiding the user from being unable to enjoy the foam shield function when using the toilet subsequently, and ensuring that the user has a better comfort when using the toilet.

[0106] In an optional embodiment, if Figure 12As shown, the foam generating device 100 also includes a seating detection mechanism 83, which is disposed on the seat 300. The pressure reducing valve 11, the dispensing valve 12, the fluid driving mechanism 22, the foaming mechanism 40, and the seating detection mechanism 83 are each communicatively connected to a control mechanism 84. When the seating detection mechanism 83 detects that a user has sat on the seat 300, the control mechanism 84 controls the pressure reducing valve 11, the dispensing valve 12, the fluid driving mechanism 22, and the foaming mechanism 40 to perform corresponding actions, thereby implementing the seating sensing control function of the foam generating device 100. The control mechanism 84 can also connect to a wireless terminal via a wireless communication module to enable remote control of the seating sensing control function of the foam generating device 100. Exemplarily, the wireless terminal can be one or more of a mobile terminal, a remote controller, etc. Exemplarily, the seating detection mechanism 83 can be a gravity sensor, an infrared sensor, etc. Any seating detection mechanism 83 capable of recognizing that a user has sat on the seat 300 is within the scope of this optional embodiment.

[0107] In an optional embodiment, if Figure 4 and Figure 5 As shown, the mixing mechanism 30 includes a mixer body 31 and a stirring blade 32. The mixer body 31 has a mixing cavity 311. The stirring blade 32 is rotatably arranged in the mixing cavity 311. The flow of water and foam liquid in the mixing cavity 311 will drive the stirring blade 32 to rotate. The stirring blade 32 can stir the foam liquid and water flow evenly to form a uniformly mixed foam mixture.

[0108] It should be noted that the stirring blade 32 in this optional embodiment can be rotated only by the flow of water and foam liquid, without the need for additional external power, and has a simple structure, is easy to use and has low energy consumption.

[0109] In an optional embodiment, the mixing mechanism 30 may further include a rotary drive mechanism capable of driving the stirring blade 32 to rotate, thereby further improving the mixing effect of the foam liquid and the water flow and obtaining a more uniform foam mixture. For example, the rotary drive mechanism may be a rotary output motor, a rotary cylinder, or the like. Any mechanism capable of driving the stirring blade 32 to rotate is within the scope of this optional embodiment.

[0110] In an optional embodiment, if Figure 3 and Figure 4 As shown, the mixing mechanism 30 includes a water inlet 33, a liquid inlet 34, a first mixing liquid outlet 35 and a second mixing liquid outlet 36, all of which are connected to the mixing cavity 311, wherein the water inlet 33 is connected to the water supply mechanism 10, the liquid inlet 34 is connected to the solvent supply mechanism 20, the first mixing liquid outlet 35 is connected to the foaming mechanism 40, and the second mixing liquid outlet 36 is connected to the foam spraying mechanism 50.

[0111] In an optional embodiment, if Figure 4 As shown, the stirring blade 32 is arranged close to the water inlet 33 and the liquid inlet 34. The stirring blade 32 is respectively arranged corresponding to the water inlet 33 and the liquid inlet 34, which can facilitate the water flow and foam liquid that have just entered the mixing cavity 311 to drive the stirring blade 32 to rotate better, and can make full use of the kinetic energy of the water flow and foam liquid.

[0112] In an optional embodiment, if Figure 3 and Figure 8 As shown, the foaming mechanism 40 includes a pump body 41 and a motor 45 disposed at the bottom of the pump body 41. The top of the pump body 41 is provided with an air port 42, a liquid port 43, and a bubble outlet 44. A rubber tympanum and an eccentric wheel are disposed within the pump body 41. The motor 45 vibrates the rubber tympanum via the eccentric wheel, causing the rubber tympanum to generate suction or thrust, which acts on the mixed liquid and air within the mixing chamber of the pump body 41. Specifically, when the rubber tympanum moves downward, suction is generated, causing the mixed liquid to be drawn into the pump body 41 from the liquid port 43 and air to be drawn into the pump body 41 from the air port 42. When the rubber tympanum moves upward, thrust is generated, pushing the mixed liquid and air toward the bubble outlet 44, breaking the mixed liquid and gas into individual bubbles, which are then output from the bubble outlet 44. This foam is then pumped into the foam ejection mechanism 50, where it is mixed with the ejected foam mixed liquid. Specifically, as shown in FIG4 , the foaming connector 51 includes a foam port 515 that communicates with the injection chamber 513, allowing the foam and the injected foam mixture to mix in the injection chamber 513. The foaming mechanism 40 may be a foaming pump commonly found in the art. Since the structure of a foaming pump is commonly found in the art, this optional embodiment will not be further described.

[0113] For ease of understanding, combined Figures 1 to 12 The working process of the toilet of the embodiment of the present disclosure is described as follows:

[0114] S101, in the foam working waiting state, the control mechanism 84 obtains the sensing control signal of the seating detection mechanism 83 and the foam control signal sent by the wireless terminal in real time;

[0115] S102: When the sensing control signal or the foam control signal is a preset control signal, the control mechanism 84 cyclically controls the fluid driving mechanism 22 to extract foam liquid from the solvent storage mechanism 21 into the mixing chamber 311 at intervals of start and stop time, and controls the pressure reducing valve 11 and the distribution valve 12 to extract water from the water source (which may be a water inlet pipe) into the mixing chamber 311 to form a foam mixed liquid.

[0116] It should be noted that when the control mechanism 84 obtains a control signal for controlling the foam shield function in real time, when the control signal is a preset foam shield activation signal, the control mechanism 84 will cyclically control the fluid drive mechanism 22 to quantitatively extract foam liquid from the solvent storage mechanism 21 into the mixing chamber 311 at intervals of start and stop time, and control the pressure reducing valve 11 and the distribution valve 12 to operate synchronously to quantitatively extract water from the water source into the mixing chamber 311. The incoming water will drive the stirring blade 32 to rotate so that the water and foam liquid are stirred and mixed, thereby forming the desired foam mixture.

[0117] The start-stop interval is preferably 0.7 seconds for start and 2.3 seconds for pause, or 0.8 seconds for start and 2.2 seconds for pause, but is not limited thereto. By controlling the operation of the fluid drive mechanism 22 using the start-stop interval, the amount of foam liquid and water input can be quantitatively controlled within a preset time period (e.g., 3 seconds). This allows for the generation of the desired mixed foam liquid with an optimal mixing ratio, effectively preventing the mixed foam liquid from being too diluted or too concentrated, which could affect the foaming effect of the foam shield and reduce user comfort.

[0118] S103, the control mechanism 84 also controls the foaming mechanism 40 to extract the foam mixture from the mixing chamber 311 for foaming, and delivers the foamed foam to the injection chamber 513;

[0119] S104. When the hydraulic pressure in the mixing cavity 311 reaches a preset value, the foam mixture in the mixing cavity 311 enters the injection cavity 511, and is sprayed into the injection cavity 513 through the provided Venturi injection port 512. The sprayed foam mixture is mixed with the foam for a second time and then flows out through the foam injection member 52.

[0120] It should be noted that the control mechanism 84 also simultaneously controls the operation of the foaming mechanism 40, extracting the mixed foam mixture from the mixing chamber 311 for foaming to generate a foam flow, which is then delivered to the injection chamber 513. Accordingly, as the amount of liquid entering the mixing chamber 311 increases, i.e., the input liquid exceeds the output liquid, the hydraulic pressure within the mixing chamber 311 increases, and a portion of the foam mixture flows through the second mixing liquid outlet 36 to the venturi injection port 512. The hydraulic pressure then injects the foam mixture from the venturi injection port 512 into the injection chamber 513, causing the injected foam mixture to undergo secondary mixing with the foam. This thorough mixing produces a uniform foam flow, which then flows outward through the foam injection member 52, thereby forming a foam shield with excellent foaming effect. The foam shield produced by this process still has a foam content greater than 50% after 60 minutes of storage, effectively reducing costs.

[0121] In response to the foam shield activation signal, the control mechanism 84 executes the foam shield function once for a preset operating time. In this embodiment, the preset operating time is preferably 18 seconds, but is not limited thereto. The foaming mechanism 40, pressure reducing valve 11, and distribution valve 12 operate within this preset operating time, while the fluid drive mechanism 22 cycles through the function six times with a 3-second start-stop interval. In this embodiment, the foam liquid flow rate of the fluid drive mechanism 22 is controlled at 15 ml / min, while the water flow rate of the distribution valve 12 is controlled at 200 ml / min to 300 ml / min. By quantitatively controlling the optimal mixing ratio within the preset operating time, the foam shield achieves the optimal foaming effect, meeting the user's comfort requirements.

[0122] When the user sends a foam shield stop signal through the wireless terminal, the control mechanism 84 can force each foam shield electronic control device to stop working.

[0123] The steps before entering the foam working waiting state include: the control mechanism 84 obtains the water level detection signal of the liquid level detection mechanism 81 in the solvent storage mechanism 21 in real time; the control mechanism 84 determines whether the water level detection signal is a preset water level signal: when it is judged to be yes, the control mechanism 84 enters the foam working waiting state; when it is judged to be no, the control mechanism 84 controls the alarm mechanism 82 to alarm or / and sends an alarm signal to the user's mobile terminal via wireless means.

[0124] It should be noted that when liquid level detection mechanism 81 detects that the liquid level in solvent storage mechanism 21 is too low, control mechanism 84 controls alarm mechanism 82 based on the detection signal from liquid level detection mechanism 81 to activate an alarm, promptly notifying the user to refill the liquid. The control mechanism 84 can also send an alarm signal to the user's mobile terminal via a wireless communication module to enable remote alarm operation, further promptly notifying the user to refill the liquid, thereby preventing the user from being unable to enjoy the foam shield function during subsequent use and ensuring optimal user comfort. When the solvent storage mechanism 21 has sufficient foam liquid, the foam operation standby state is entered, and control mechanism 84 waits for a control signal to activate the foam shield function.

[0125] Accordingly, after refilling or when using the toilet's foam shield function for the first time, the user can send a purge control signal to the control mechanism 84 via a wireless terminal. The control mechanism 84 controls the various electronic control components of the foam shield to operate for a preset purge time to expel internal air and avoid affecting the subsequent foaming effect. The preset purge time is preferably 16 seconds, but is not limited thereto.

[0126] Obviously, the above embodiments of the present invention are merely examples for the purpose of clearly illustrating the present invention, and are not intended to limit the implementation methods of the present invention. Those skilled in the art will appreciate that other variations or modifications can be made based on the above description. It is not necessary and impossible to enumerate all implementation methods here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the claims of the present invention.

Claims

1. A foam generating device, characterized in that: include: A water supply mechanism (10) for connecting to a water source; a solvent supply mechanism (20) for storing foam liquid; The mixing mechanism (30) has a mixing inner cavity (311), and the water supply mechanism (10) and the solvent supply mechanism (20) are both connected to the mixing inner cavity (311); a foaming mechanism (40) in communication with the mixing cavity (311); and The foam ejection mechanism (50), the foaming mechanism (40) and the mixing cavity (311) are all connected to the foam ejection mechanism (50).

2. The foam generating device according to claim 1, characterized in that The foam ejection mechanism (50) comprises: A foaming connector (51), wherein the foaming connector (51) is provided with an injection cavity (511), a venturi injection port (512), and an injection cavity (513) that are sequentially connected, the injection cavity (511) is connected to the mixing cavity (311), and the cross-sectional area of ​​the venturi injection port (512) is smaller than the cross-sectional area of ​​the injection cavity (511) and the cross-sectional area of ​​the injection cavity (513); and The foam injection member (52) is in communication with the injection chamber (513).

3. The foam generating device according to claim 2, characterized in that: The Venturi injection port (512) comprises an acceleration section (5121) and an injection section (5122); the injection cavity (511), the acceleration section (5121), the injection section (5122), and the injection cavity (513) are sequentially connected; a cross-sectional area S1 of the acceleration section (5121) is smaller than a cross-sectional area S2 of the injection cavity (511); and a cross-sectional area S3 of the injection section (5122) gradually increases along the flow direction of the fluid; and / or The injection chamber (513) has an injection outlet (5131), and the foam ejection mechanism (50) further comprises a foaming net (53), wherein the foaming net (53) is arranged in the injection chamber (513) or is located downstream of the injection outlet (5131).

4. The foam generating device according to claim 3, characterized in that: On the longitudinal section of the foaming connector (51), the intersection position (5123) of the acceleration section (5121) and the injection section (5122) has a first endpoint A, the injection chamber (513) has a second endpoint B at one end away from the Venturi injection port (512), the first endpoint A and the second endpoint B are located on the same side of the center line Lc of the Venturi injection port (512), the line connecting the first endpoint A and the second endpoint B is a first line L1, and the angle between the longitudinal section oblique line segment (51221) of the injection section (5122) and the first line L1 is α, wherein 5°≤α≤10°; and / or The foaming net (53) comprises a frame (531) and a net (532), the frame (531) is provided with a through channel (5311), and the net (532) is arranged in the through channel (5311); and / or The foaming nets (53) are provided in at least two forms, and the at least two foaming nets (53) are arranged in sequence along the flow direction of the fluid; and / or One of the foaming connecting member (51) and the foam spraying member (52) includes an end portion (514), the end portion (514) is plugged into the other of the two, the other of the two includes a limiting portion (521), the foaming net (53) is located inside the other of the two and is clamped by the limiting portion (521) and the end portion (514); and / or The foaming connection piece (51) is plugged into the foam spraying piece (52), and the foam spraying mechanism (50) further comprises a sealing piece (54), which is arranged between the foaming connection piece (51) and the foam spraying piece (52).

5. The foam generating device according to any one of claims 1 to 4, characterized in that: The foam generating device further comprises: The valve body (60) is connected to the mixing cavity (311) and the foam ejection mechanism (50) through the valve body (60), and the valve body (60) only allows the fluid in the mixing cavity (311) to pass through and enter the foam ejection mechanism (50).

6. The foam generating device according to claim 5, characterized in that: The mixing mechanism (30) cooperates with the foam ejection mechanism (50) to form an accommodating space (70); a communicating hole (312) is provided on the mixing mechanism (30) and is respectively connected to the mixing cavity (311) and the accommodating space (70); the foam ejection mechanism (50) is connected to the accommodating space (70); the valve body (60) is arranged in the accommodating space (70) and is located between the communicating hole (312) and the foam ejection mechanism (50); the valve body (60) includes a blocking member (61) and an elastic member (62); the elastic member (62) can switch between a first state in which the blocking member (61) blocks the communicating hole (312) and a second state in which the blocking member (61) opens the communicating hole (312).

7. The foam generating device according to any one of claims 1 to 4, characterized in that: The water supply mechanism (10) comprises a pressure reducing valve (11) and a distribution valve (12), and the water source, the pressure reducing valve (11), the distribution valve (12) and the mixing chamber (311) are sequentially connected; and / or The solvent supply mechanism (20) comprises a solvent storage mechanism (21) and a fluid driving mechanism (22), and the solvent storage mechanism (21), the fluid driving mechanism (22) and the mixing cavity (311) are sequentially connected.

8. The foam generating device according to claim 7, characterized in that: The foam generating device further comprises a liquid level detection mechanism (81) and an alarm mechanism (82), wherein the liquid level detection mechanism (81) is arranged in the solvent supply mechanism (20) and is configured to detect the liquid level of the foam liquid in the solvent supply mechanism (20), and the alarm mechanism (82) is communicatively connected to the liquid level detection mechanism (81), and the alarm mechanism (82) is configured to alarm when the liquid level detected by the liquid level detection mechanism (81) is lower than a preset liquid level; and / or The foam generating device further comprises a seating detection mechanism (83), and the pressure reducing valve (11), the distribution valve (12), the fluid driving mechanism (22) and the foaming mechanism (40) are respectively connected to the seating detection mechanism (83) in a communication manner.

9. The foam generating device according to any one of claims 1 to 4, characterized in that: The mixing mechanism (30) further comprises a stirring blade (32), wherein the stirring blade (32) is rotatably disposed in the mixing cavity (311); and / or The mixing mechanism (30) comprises a water inlet (33), a liquid inlet (34), a first mixing liquid outlet (35) and a second mixing liquid outlet (36), all of which are connected to the mixing inner cavity (311); the water inlet (33) is connected to the water supply mechanism (10); the liquid inlet (34) is connected to the solvent supply mechanism (20); the first mixing liquid outlet (35) is connected to the foaming mechanism (40); and the second mixing liquid outlet (36) is connected to the foam spraying mechanism (50).

10. The foam generating device according to claim 9, characterized in that: The foaming mechanism (40) comprises a pump body (41) and an air port (42), a liquid port (43) and a foam outlet (44) which are connected to the interior of the pump body; the liquid port (43) is connected to the first mixed liquid outlet (35); the foam outlet (44) is connected to the foam ejection mechanism (50); and the air port (42) is connected to the external environment.

11. A smart toilet seat, comprising a movement seat (200), a seat ring (300) and a seat cover (400) arranged thereon, characterized in that: The smart toilet lid further comprises a foam generating device as claimed in any one of claims 1 to 10.

12. The smart toilet lid according to claim 11, characterized in that: The movement seat (200) comprises a movement seat body (210) and a liquid adding cover (220) movably connected thereto; a liquid adding tank (2101) is provided on the movement seat body (210); the solvent supply mechanism (20) comprises a liquid adding pipe (23); the liquid adding pipe (23) is plugged into the movement seat (200); and a portion of the liquid adding pipe (23) is accommodated in the liquid adding tank (2101).

13. The smart toilet lid according to claim 12, characterized in that: The liquid adding pipe (23) has a liquid adding port (231), and the solvent supply mechanism (20) further includes a protective net, which covers the liquid adding port (231).

14. A toilet, characterized in that: It comprises the foam generating device according to any one of claims 1 to 10 or the smart toilet cover according to any one of claims 11 to 13.

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