A foam delivery device, a foam generating system and a toilet bowl

Abstract

The application discloses a foam agent conveying device, a foam generating system and a toilet bowl, and uses the foam agent conveying device to replace a peristaltic pump, adopts a mechanical method to realize foam agent conveying, controls the pressure change of a control cavity by controlling the inlet and outlet of the control cavity, so that a separation structure moves and adjusts the volume of a working cavity to output the foam agent input by the inlet of the working cavity from the outlet of the working cavity, improves the reliability of foam agent conveying and reduces the maintenance cost, avoids the problems of high cost and low reliability existing in the peristaltic pump in the prior art, and improves the actual use effect.

Description

Technical Field

[0001] This invention relates to the field of toilet technology, and more particularly to a foaming agent delivery device, a foam generating system, and a toilet. Background Technology

[0002] Existing toilets on the market offer multiple functions, bringing great convenience to people's lives. In recent years, major manufacturers have focused on developing foamed toilets and foam generating devices. Using foam to fill the toilet bowl effectively isolates odors and prevents dirty water from splashing, while also achieving efficient cleaning of the toilet's inner walls. Generally, foam generating devices need to deliver foaming agent. Conventional designs use peristaltic pumps as the power source for foam delivery. However, peristaltic pumps still have some drawbacks in use, such as: the hose is constantly squeezed by the rollers during long-term use, which can easily lead to hose wear and leakage; additionally, the cost of the peristaltic pump itself and subsequent maintenance is relatively high. Existing technologies for foaming agent delivery devices for toilets suffer from poor reliability and high costs. Summary of the Invention

[0003] To overcome the shortcomings of existing technical solutions, embodiments of the present invention provide a foaming agent delivery device, a foam generating system, and a toilet, aiming to solve the problem of poor reliability of existing foaming agent delivery devices used in toilets.

[0004] In a first aspect, embodiments of this application disclose a foaming agent delivery device for use in a toilet, wherein the device includes a cylinder and a partition structure;

[0005] The partition structure is disposed within the hollow cavity of the cylinder to divide the hollow cavity into a working cavity and a control cavity;

[0006] The cylinder body is provided with a working chamber outlet and a working chamber inlet that communicate with the working chamber; the working chamber inlet is used to input foaming agent; the cylinder body is provided with a control chamber inlet and a control chamber outlet that communicate with the control chamber;

[0007] When the pressure in the control chamber changes, the partition structure adjusts the volume of the working chamber so that the foaming agent input at the inlet of the working chamber is output from the outlet of the working chamber.

[0008] Secondly, embodiments of this application disclose a foam generating system, wherein the foam generating system includes a mixing box, a foaming agent box, a foaming device, a water inlet valve, and a foaming agent delivery device as described in the first aspect above;

[0009] The mixing box has a first mixing inlet, a second mixing inlet, and a mixing box outlet;

[0010] The foaming agent box has a foaming agent box outlet;

[0011] The first mixing inlet of the mixing box is connected to the outlet of the working chamber to allow the foaming agent to pass through; the second mixing inlet of the mixing box is connected to the outlet of the control chamber to allow water to pass through; the outlet of the water inlet valve is connected to the inlet of the control chamber; the mixing box outlet of the mixing box is connected to the liquid inlet of the foaming device; and the foaming outlet of the foaming device is used to output foam.

[0012] Thirdly, this application also discloses a toilet, characterized in that the toilet includes a ceramic body, a core base assembled on the ceramic body, and a foam generating system as described in the second aspect above.

[0013] The foam generating system is fixedly installed on the core base, and the foaming outlet of the foaming device extends into the top of the ceramic body.

[0014] As can be seen from the above solutions, the present invention provides a foaming agent delivery device, a foam generating system, and a toilet. It replaces the peristaltic pump with a foaming agent delivery device, employing a mechanical method to deliver the foaming agent. By controlling the pressure in the control chamber inlet and outlet, the pressure in the control chamber is changed, thereby causing the partition structure to move and adjust the volume of the working chamber so that the foaming agent input at the working chamber inlet is output from the working chamber outlet. This improves the reliability of foaming agent delivery and reduces maintenance costs, avoiding the high cost and low reliability problems associated with peristaltic pumps in traditional technologies, and enhancing the actual usage effect. Attached Figure Description

[0015] To more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the following description of the embodiments will be briefly introduced. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 A cross-sectional structural diagram of the foaming agent conveying device provided in an embodiment of the present invention;

[0017] Figure 2 Another cross-sectional view of the foaming agent delivery device provided in an embodiment of the present invention;

[0018] Figure 3 Another cross-sectional structural diagram of the foaming agent delivery device provided in an embodiment of the present invention;

[0019] Figure 4 This is an overall structural diagram of the foaming agent delivery device provided in an embodiment of the present invention;

[0020] Figure 5 This is an overall structural diagram of the foam generation system provided in an embodiment of the present invention;

[0021] Figure 6 A cross-sectional structural diagram of a foam generation system provided in an embodiment of the present invention;

[0022] Figure 7 This is a schematic diagram of the pathway structure of a foam generation system provided in an embodiment of the present invention;

[0023] Figure 8 This is a schematic diagram of another pathway structure of the foam generation system provided in an embodiment of the present invention.

[0024] Attached icon number

[0025] 10. Foaming agent delivery device; 11. Cylinder body; 12. Separation structure; 13. Working chamber; 14. Control chamber; 131. Working chamber outlet; 132. Working chamber inlet; 141. Control chamber inlet; 142. Control chamber outlet; 121. Piston; 122. Reset assembly; 133. Outlet check valve; 134. Inlet check valve; 123. Mounting groove; 124. Sealing ring; 151. Check valve sealing bracket; 152. Check valve sealing gasket; 153. Check valve spring ; 20. Mixing box; 30. Foaming agent box; 40. Foaming device; 50. Inlet valve; 60. Core base; 51. Outlet; 21. First mixing inlet; 22. Second mixing inlet; 23. Mixing box outlet; 70. Water circuit switch assembly; 71. Steel shaft; 72. Steel shaft seal; 73. One-way seal; 711. Contact ring; 731. Sealing gasket; 732. Abutment ring; 733. Sealing fixing post; 734. Elastic component; 80. Pressure regulating assembly. Detailed Implementation

[0026] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0027] It should be understood that, when used in this specification and the appended claims, the terms "comprising" and "including" indicate the presence of the described features, integrals, steps, operations, elements and / or components, but do not exclude the presence or addition of one or more other features, integrals, steps, operations, elements, components and / or collections thereof.

[0028] It should also be understood that the terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to limit the invention. As used in this specification and the appended claims, the singular forms “a,” “an,” and “the” are intended to include the plural forms unless the context clearly indicates otherwise.

[0029] It should also be further understood that the term "and / or" as used in this specification and the appended claims refers to any combination of one or more of the associated listed items and all possible combinations, and includes such combinations.

[0030] This application discloses a foaming agent delivery device for use in a toilet; such as Figure 1 and Figure 4 As shown, the device includes a cylinder 11 and a partition structure 12; the partition structure 12 is disposed in the hollow cavity of the cylinder 11 to divide the hollow cavity into a working cavity 13 and a control cavity 14; the cylinder 11 is provided with a working cavity outlet 131 and a working cavity inlet 132 communicating with the working cavity 13; the working cavity inlet 132 is used to input foaming agent; the cylinder 11 is provided with a control cavity inlet 141 and a control cavity outlet 142 communicating with the control cavity 14; when the pressure in the control cavity 14 changes, the partition structure 12 adjusts the volume of the working cavity 13 so that the foaming agent input by the working cavity inlet 132 is output from the working cavity outlet 131.

[0031] The partition structure 12 divides the hollow cavity of the cylinder 11, and the partition structure 12 returns to its initial state through elastic force. The pressure of the control chamber 14 can be increased or decreased by controlling the inlet 141 and the outlet 142. When the pressure of the control chamber 14 is increased by controlling the inlet 141 and the outlet 142, the partition structure 12 moves and reduces the volume of the working chamber 13, at which time the foaming agent input by the inlet 132 can be output from the outlet 131. When the pressure of the control chamber 14 is decreased by controlling the inlet 141 and the outlet 142, the partition structure 12 returns to its initial state through elastic force, at which time the volume of the working chamber 13 increases, and the foaming agent can be drawn in through the inlet 132 and stored in the working chamber 13 in preparation for the next foaming agent output.

[0032] In one specific embodiment, the partition structure 12 is an elastic diaphragm. The partition structure 12 can be configured to consist of an elastic diaphragm and a reset assembly 122. The elastic diaphragm partitions the hollow cavity of the cylinder 11. The middle portion of the elastic diaphragm can be recessed towards the working cavity 13 or towards the control cavity 14. When the middle portion of the elastic diaphragm is recessed towards the working cavity 13, the volume of the working cavity 13 is compressed and reduced. When the middle portion of the elastic diaphragm returns towards the control cavity 14, the volume of the working cavity 13 increases. The initial state of the elastic diaphragm is that the middle portion is in a natural, intermediate state. If the pressure in the control cavity 14 increases, the elastic diaphragm changes from its initial state to being recessed towards the working cavity 13.

[0033] In one specific embodiment, the partition structure 12 is an elastic diaphragm and a reset assembly 122. The reset assembly 122 is used to provide additional elastic force to the elastic diaphragm to assist in resetting the elastic diaphragm so that the elastic diaphragm maintains its initial state when not subjected to other external forces.

[0034] In another specific embodiment, the cylinder body 11 is a piston cylinder, and the partition structure 12 includes a piston 121 and a reset assembly 122; the piston 121 is disposed within the hollow cavity of the piston cylinder to partition the hollow cavity; the reset assembly 122 is assembled within the piston cylinder to drive the piston 121 to reset. Alternatively, the cylinder body 11 can be a piston cylinder, and the partition structure 12 can include a piston 121 and a reset assembly 122. The piston 121 can slide along the axial direction of the piston cylinder within the piston cylinder, and the reset assembly 122 is used to push the piston 121 to move and reset the piston 121. In this case, the piston 121 partitions the hollow cavity of the piston cylinder, forming a working chamber 13 and a control chamber 14. When the control chamber 14 is under normal pressure, the reset assembly 122 provides driving force to the piston 121, thereby pushing the piston 121 to one side of the control chamber 14. When the pressure inside the control chamber 14 increases, the thrust generated by the control chamber 14 on the piston 121 is greater than the thrust of the reset assembly 122 on the piston 121, which can push the piston 121 to move towards the working chamber 13, thus reducing the volume of the working chamber 13. When the pressure inside the control chamber 14 decreases and returns to normal pressure, the reset assembly 122 pushes the piston 121 towards the control chamber 14 and resets the piston 121 to the position on one side of the control chamber 14. At this time, the volume of the working chamber 13 increases, and foaming agent can be drawn in through the working chamber inlet 132 and stored in the working chamber 13 to prepare for the next foaming agent output.

[0035] In a more specific embodiment, the piston 121 is provided with at least one mounting groove 123, and a sealing ring 124 is fitted into the mounting groove 123. Specifically, to improve the sealing performance between the piston 121 and the inner wall of the piston cylinder, a mounting groove 123 can be provided on the piston 121, and the number of mounting grooves 123 can be one; or multiple mounting grooves 123 can be provided on the piston 121, for example, one mounting groove 123 can be provided at the end of the piston 121 near the working chamber 13, and another mounting groove 123 can be provided at the end of the piston 121 near the control chamber 14. A sealing ring 124 is fitted into each mounting groove 123, and the gap between the piston 121 and the inner wall of the piston cylinder can be sealed by the sealing ring 124, thereby improving the effect of the piston 121 in conveying the foaming agent.

[0036] In one specific embodiment, a water circuit switch assembly 70 is provided at the control cavity outlet 142. Specifically, as shown... Figure 2 and Figure 3 As shown, the water circuit switch assembly 70 includes a steel shaft 71, a steel shaft 71 seal, and a one-way seal 73. One end of the steel shaft 71 is fixedly connected to the piston 121, and the other end is provided with a contact ring 711. The steel shaft 71 seal is sleeved on the outer wall of the steel shaft 71 to maintain a seal between the steel shaft 71 and other adjacent components during movement. The one-way seal 73 is disposed between the control chamber 14 and the control chamber outlet 142, and the end of the one-way seal 73 abuts against the contact ring 711. After the piston 121 slides a certain distance towards one end of the working chamber 13, the piston 121 drives the contact ring 711 to move through the steel shaft 71 and pushes the one-way seal 73 to slide in the same direction, so that the control chamber 14 and the control chamber outlet 142 are connected. Alternatively, the water circuit switch assembly 70 is a solenoid valve.

[0037] The water circuit switch assembly 70 is used to control the water flow path at the control chamber outlet 142. When the water circuit switch assembly 70 is closed, the control chamber outlet 142 is sealed, and the pressure in the control chamber 14 increases to be equal to the input water flow at the control chamber inlet 141. This increased pressure in the control chamber 14 causes the partition structure 12 to move and reduce the volume of the working chamber 13. At this time, the foaming agent input at the working chamber inlet 132 can be output from the working chamber outlet 131. When the water circuit switch assembly 70 is open, the control chamber outlet 142 is not sealed, and the water flow in the control chamber 14 flows out from the control chamber outlet 142, thus reducing the pressure in the control chamber 14. The partition structure 12 returns to its initial state through elastic force, and the volume of the working chamber 13 increases. This allows the foaming agent to be drawn in through the working chamber inlet 132 and stored in the working chamber 13 in preparation for the next foaming agent output. The specific location of the water circuit switch assembly 70 is as follows: Figure 7 As shown.

[0038] Furthermore, the water circuit switch assembly 70 can be configured to consist of a steel shaft 71, a steel shaft 71 seal, and a one-way seal 73. During the initial movement of the piston 121, the contact ring 711 will not push the one-way seal 73. Only after the piston 121 has moved a certain distance and continues to move towards the working chamber can the steel shaft 71 drive the contact ring 711 to move and push the one-way seal 73 to slide in the same direction as the piston 121. When the one-way seal 73 slides to a certain position, the sealing state can be released, connecting the control chamber 14 with the control chamber outlet 142. At this time, the position of the one-way seal 73 is as follows: Figure 3 As shown, when the control chamber 14 reaches a certain pressure, the one-way seal 73 will be automatically pushed to connect the control chamber 14 with the control chamber outlet 142. At this time, the high-pressure water in the control chamber 14 will flow out from the control chamber outlet 142, thereby depressurizing the control chamber 14.

[0039] Specifically, an outlet partition is provided between the control cavity 14 and the control cavity outlet 142, and the outlet partition has a partition through hole; the one-way seal 73 includes a sealing gasket 731, an abutment ring 732, and a sealing fixing post 733 penetrating the partition through hole; the sealing gasket 731 is sleeved on the sealing fixing post 733 at the end away from the control cavity outlet 142, the abutment ring 732 is disposed on the sealing fixing post 733 at the end near the control cavity outlet 142, and the contact ring 711 is located on the side of the abutment ring 732 away from the sealing gasket 731; an elastic component 734 is provided between the sealing fixing post 733 and the inner wall of the piston cylinder to provide elastic force to the sealing fixing post 733. When the one-way seal 73 returns to its initial position, the position of the one-way seal 73 is as follows: Figure 2 As shown. In addition to setting the water circuit switch assembly 70 to the above structure, the water circuit switch assembly 70 can also be set to a solenoid valve, which can be directly controlled to open and close via an electrical signal.

[0040] Furthermore, an outlet partition can be provided between the control chamber 14 and the control chamber outlet 142. The sealing and fixing post 733 passes through the partition through hole provided on the outlet partition. The sealing gasket 731 abuts against one side of the partition through hole to seal the partition through hole. The abutment ring 732 is sleeved on the sealing and fixing post 733, and the end face of the abutment ring 732 away from the sealing gasket 731 abuts against the contact ring 711. When the steel shaft 71 moves and drives the contact ring 711 to move, the contact ring 711 pushes the abutment ring 732 to move synchronously along the direction of piston 121. An elastic component 734 can be provided on the inner wall of the sealing and fixing post 733 and the piston cylinder. The elastic component 734 is used to provide elastic force to the sealing and fixing post 733 so that the sealing and fixing post 733 is in a stable state after it is opened.

[0041] In another specific embodiment, the control chamber outlet 142 is provided with a pressure regulating component 80 for adjusting the internal pressure of the control chamber 14 to drive the piston 121. Alternatively, the pressure regulating component 80 can be provided at the control chamber outlet 142, and can be used to regulate the pressure between the upstream and downstream of the pressure regulating component 80, and control the upstream and downstream of the pressure regulating component 80 to maintain a certain pressure difference; the specific location of the pressure regulating component 80 is as follows. Figure 8 As shown. If the pressure difference between the upstream and downstream of the pressure regulating component 80 increases, the pressure in the control chamber 14 increases; if the pressure difference between the upstream and downstream of the pressure regulating component 80 decreases, the pressure in the control chamber 14 decreases. The pressure regulating device can be a section of pipe with a small inner bore or other assembly structure.

[0042] In a more specific embodiment, an outlet check valve 133 is provided at the outlet 131 of the working chamber, and an inlet check valve 134 is provided at the inlet 132 of the working chamber. Furthermore, to improve the delivery effect of the foaming agent, an outlet check valve 133 can be provided at the outlet 131 of the working chamber, and an inlet check valve 134 can be provided at the inlet 132 of the working chamber. The outlet check valve 133 limits the flow direction of the liquid at the outlet 131 of the working chamber, and the inlet check valve 134 limits the flow direction of the liquid at the inlet 132 of the working chamber, thereby allowing the foaming agent input at the inlet 132 to be output from the outlet 131 of the working chamber along a unidirectional flow direction.

[0043] Both the inlet check valve 134 and the outlet check valve 133 include a check valve sealing frame 151, a check valve sealing gasket 152 assembled at one end of the check valve sealing frame 151, and a check valve spring 153 assembled at the other end of the check valve sealing frame 151; the check valve sealing gasket 152 is assembled upstream in the direction of water flow. Alternatively, both the inlet check valve 134 and the outlet check valve 133 are umbrella-shaped disc check valves.

[0044] Specifically, the inlet check valve 134 and outlet check valve 133 can be configured, each consisting of a check valve sealing frame 151, a check valve sealing gasket 152, and a check valve spring 153. The check valve sealing gasket 152 is installed upstream in the flow direction. The specific configuration structure is as follows: Figure 1 As shown. Alternatively, both the inlet check valve 134 and the outlet check valve 133 can be configured as umbrella-shaped disc check valves.

[0045] This application also discloses a foam generation system, such as... Figures 5 to 8As shown, the foam generating system includes a mixing box 20, a foaming agent box 30, a foaming device 40, a water inlet valve 50, and a foaming agent delivery device 10 as described in the first aspect above; the mixing box 20 has a first mixing inlet 21, a second mixing inlet 22, and a mixing box 20 outlet; the foaming agent box 30 has a foaming agent box 30 outlet; the first mixing inlet 21 of the mixing box 20 is connected to the working chamber outlet 131 to allow the foaming agent to enter, the second mixing inlet 22 of the mixing box 20 is connected to the control chamber outlet 142 to allow water to enter, the outlet 51 of the water inlet valve 50 is connected to the control chamber inlet 141; the mixing box 20 outlet of the mixing box 20 is connected to the liquid inlet of the foaming device 40, and the foaming outlet of the foaming device 40 is used to output foam.

[0046] The foaming agent box 30 stores foaming agent, and the foaming agent delivery device 10 extracts the foaming agent stored in the foaming agent box 30 and outputs it to the mixing box 20. The outlet 51 of the inlet valve 50 outputs high-pressure water to the control chamber inlet 141 to control the water pressure in the control chamber 14. The control chamber outlet 142 outputs water to the mixing box 20. The mixing box 20 thoroughly mixes the foaming agent input at the first mixing inlet 21 and the water input at the second mixing inlet 22 to form a foam mixture. The foam mixture is output to the foaming device 40 and generates foam for output. Since the water flow used to control the output of foaming agent in the control chamber 14 is delivered to the mixing box 20 through the control chamber outlet 142 and output in foam form, there is no need to supply additional water to the mixing box 20. Therefore, this setup only requires the inlet valve to provide one water inlet path, which reduces the requirements for the water supply system and simplifies the system structure.

[0047] This application also discloses a toilet, wherein the toilet includes a ceramic body, a core base 60 mounted on the ceramic body, and a foam generating system as described in the above embodiments; the foam generating system is fixedly installed on the core base 60, and the foaming outlet of the foaming device 40 extends into the upper part of the ceramic body.

[0048] The core base 60 is mounted on the ceramic body. The foam generating system is fixedly installed on the core base 60. The foaming outlet of the foaming device 40 extends into the ceramic cavity of the ceramic body, so the foam generated by the foaming device 40 can be directly output into the ceramic cavity for efficient cleaning. The foaming agent box 30 is provided with a foaming agent box filling port for replenishing foaming agent into the foaming agent box 30.

[0049] As can be seen from the above solutions, the present invention provides a foaming agent delivery device, a foam generating system, and a toilet. It replaces the peristaltic pump with a foaming agent delivery device, employing a mechanical method to deliver the foaming agent. By controlling the pressure in the control chamber inlet and outlet, the pressure in the control chamber is changed, thereby causing the partition structure to move and adjust the volume of the working chamber so that the foaming agent input at the working chamber inlet is output from the working chamber outlet. This improves the reliability of foaming agent delivery, reduces maintenance costs, avoids the jerking problem that occurs when using a peristaltic pump in traditional technology, and enhances the actual usage effect.

[0050] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any person skilled in the art can easily conceive of various equivalent modifications or substitutions within the technical scope disclosed in the present invention, and these modifications or substitutions should all be covered within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the scope of the claims.

Claims

1. A foam delivery device for use in a toilet bowl, characterized by, The device comprises a cylinder and a separation structure; The separation structure is arranged in the hollow cavity of the cylinder to separate the hollow cavity into a working chamber and a control chamber; the cylinder is a piston cylinder, and the separation structure comprises a piston and a reset assembly; The piston is arranged in the hollow cavity of the piston cylinder to separate the hollow cavity; the reset assembly is assembled in the piston cylinder to drive the piston to reset; The cylinder is provided with a working chamber outlet and a working chamber inlet in communication with the working chamber; the working chamber inlet is used to input the foam agent; the cylinder is provided with a control chamber inlet and a control chamber outlet in communication with the control chamber; The separation structure adjusts the volume of the working chamber to output the foam agent input by the working chamber inlet from the working chamber outlet when the pressure of the control chamber changes; The control chamber outlet is provided with a pressure adjusting assembly for adjusting the internal pressure of the control chamber to drive the piston to move; the pressure adjusting assembly is used to maintain a certain pressure difference between the upstream and downstream of the pressure adjusting assembly; The control chamber outlet is provided with a waterway switch assembly; The waterway switch assembly comprises a steel shaft, a steel shaft sealing member and a one-way sealing member; One end of the steel shaft is fixedly connected with the piston in the separation structure, and the other end is provided with a contact ring; the steel shaft sealing member is sleeved on the outer sidewall of the steel shaft to maintain sealing between the steel shaft and other components adjacent to the periphery during movement; The one-way sealing member is arranged between the control chamber and the control chamber outlet, and the end of the one-way sealing member abuts against the contact ring; after the piston slides a certain distance to one end of the working chamber, the piston drives the contact ring to move and the one-way sealing member to slide in the same direction, so that the control chamber is in communication with the control chamber outlet.

2. The foam delivery device of claim 1, wherein, The working chamber outlet is provided with an outlet one-way valve, and the working chamber inlet is provided with an inlet one-way valve.

3. A foam generating system characterized by, The foam generating system comprises a mixed liquid box, a foam agent box, a foaming device, a water inlet valve and the foam agent delivery device according to any one of claims 1-2; The mixed liquid box has a first mixed liquid inlet, a second mixed liquid inlet and a mixed liquid box outlet; The foam agent box has a foam agent box outlet; The first mixed liquid inlet of the mixed liquid box is in communication with the working chamber outlet to input the foam agent, the second mixed liquid inlet of the mixed liquid box is in communication with the control chamber outlet to input water flow, and the water outlet of the water inlet valve is in communication with the control chamber inlet; the mixed liquid box outlet of the mixed liquid box is in communication with the liquid inlet of the foaming device, and the foaming outlet of the foaming device is used to output foam.

4. A toilet bowl characterized by The toilet comprises a ceramic body, a core base assembled on the ceramic body and the foam generating system according to claim 3; The foam generating system is fixedly installed on the core base, and the foaming outlet of the foaming device extends into the upper part of the ceramic body.

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