Toilet foam shield device and intelligent toilet
By using a pump module in the smart toilet to mix foaming agent and water to form sufficient foam liquid, the problems of insufficient mixing and complex valve circuits are solved, achieving efficient foaming and simplified design.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-03
- Publication Date
- 2026-03-13
AI Technical Summary
Existing smart toilets suffer from insufficient mixing of foaming agent and water, while foam shields have complex valve circuit designs.
A pump module draws out the foaming agent from the foaming agent storage chamber and pumps it into the through-hole between the first and second mixing chambers, where it mixes with water from the external water inlet pipe. The mixture forms a fully foamed liquid, which is then sprayed out through the foaming nozzle. The valve circuit design is simple, requiring only the pump module, foaming nozzle, and piping.
It improves the mixing effect of foaming agent and water, simplifies valve circuit design, enables precise control of foaming agent usage, and improves foaming efficiency.
Smart Images

Figure CN223991420U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of toilet equipment, and in particular to a toilet foam shield device and a smart toilet. Background Technology
[0002] A toilet foam shield is an added feature of smart toilets. It sprays a layer of dense foam inside the toilet bowl, which adheres to the water surface, thus providing functions such as splash prevention, sterilization, odor control, and anti-clogging. The foaming principle of the foam shield is as follows: a foaming agent is mixed with water to create a foam liquid, which is then mixed with air and sprayed out as foam from a foaming nozzle. However, existing smart toilets suffer from problems such as insufficient mixing of the foaming agent and water, and a relatively complex valve design for the foam shield. Summary of the Invention
[0003] The purpose of this invention is to overcome the shortcomings of the prior art and provide a toilet foam shield device that allows for thorough mixing of foaming agent and water and features a simple valve circuit design.
[0004] To achieve the above objectives, the technical solution provided by this utility model is as follows:
[0005] A toilet foam shield device includes a tank body, a foaming nozzle, and a pump module;
[0006] The main body of the box is provided with a foaming agent storage chamber for storing foaming agent and a mixing chamber for mixing foaming agent and water;
[0007] The mixing chamber includes a first mixing chamber and a second mixing chamber;
[0008] A through hole is provided between the first mixing chamber and the second mixing chamber, through which the first mixing chamber communicates with the second mixing chamber, and the first mixing chamber is also connected to an external water inlet pipe;
[0009] The second mixing chamber is connected to the foaming nozzle via a pipe;
[0010] The pump module is connected to the foaming agent storage chamber and the through holes between the first mixing chamber and the second mixing chamber via pipes.
[0011] In this technical solution, the pump module draws the foaming agent from the foaming agent storage chamber through a pipeline and pumps it into the through-hole between the first and second mixing chambers. Simultaneously, water from the external water inlet pipe enters the first mixing chamber and then flows through the through-hole between the first and second mixing chambers. The foaming agent and water mix within the through-hole, resulting in a well-mixed foam liquid converging in the second mixing chamber. Finally, the foam liquid already present in the second mixing chamber, propelled by the newly formed foam liquid passing through the through-hole, reaches the foaming nozzle through a corresponding pipeline. The foaming nozzle then mixes the foam liquid with air and sprays out foam. Furthermore, besides the through-hole between the first and second mixing chambers, this technical solution only requires the pump module, foaming nozzle, and corresponding pipelines, making the valve circuit design of the foam shield relatively simple.
[0012] Furthermore, the through hole is a square through hole, and the ratio of the height to the width of the square through hole is one-half to two-fifths;
[0013] The pump module is connected to the foaming agent inlet at the bottom of the through hole via a pipe, and the inner diameter of the foaming agent inlet is slightly smaller than the width of the square through hole.
[0014] This technical solution can improve the mixing effect of foaming agent and water.
[0015] Furthermore, the top of the main body of the box is provided with a foaming agent filling port, and a box cover is provided at the foaming agent filling port. When it is necessary to add foaming agent into the foaming agent storage chamber, simply open the box cover.
[0016] Furthermore, the top of the main body of the box is provided with an overflow port located on the side of the foaming agent filling port. If there is too much foaming agent in the foaming agent storage chamber, the excess foaming agent will be discharged through the overflow port. Moreover, when the pump module is working, the overflow port can be used to balance the pressure in the foaming agent storage chamber, so that the pump module can draw foaming agent from the foaming agent storage chamber through the pipeline.
[0017] Furthermore, the housing includes a base and an upper cover covering the base, and the connection between the upper cover and the base is provided with a sealing structure.
[0018] Furthermore, the sealing structure includes a groove at the bottom of the upper cover and a protrusion at the top of the base, the protrusion being adapted to the groove.
[0019] Furthermore, the base is provided with several limiting parts to facilitate the alignment and installation of the top cover and the base.
[0020] Furthermore, the pump module is a peristaltic pump.
[0021] This utility model also provides a smart toilet, which includes the toilet foam shield device described above.
[0022] Compared with existing technologies, the principles and advantages of this technical solution are as follows:
[0023] 1. The pump module draws foaming agent from the foaming agent storage chamber through a pipeline and pumps it into the through-hole between the first and second mixing chambers. Simultaneously, water from the external water inlet pipe enters the first mixing chamber and then flows through the through-hole between the first and second mixing chambers. The foaming agent and water mix within the through-hole, resulting in a well-mixed foam liquid converging in the second mixing chamber. Finally, the foam liquid already present in the second mixing chamber, propelled by the newly formed foam liquid passing through the through-hole, reaches the foaming nozzle through corresponding pipelines. The foaming nozzle then mixes the foam liquid with air and sprays out foam. Furthermore, this technical solution, besides the through-hole between the first and second mixing chambers, only requires the pump module, foaming nozzle, and corresponding pipelines, making the valve design of the foam shield relatively simple. The pump module allows for precise control of the amount of foaming agent used, improving foaming efficiency and the number of times the foaming agent can be used.
[0024] 2. The through hole is a square through hole, and the ratio of the height to the width of the square through hole is one-half to two-fifths; the pump module is connected to the foaming agent inlet at the bottom of the through hole through a pipe, and the inner diameter of the foaming agent inlet is slightly smaller than the width of the square through hole, which can improve the mixing effect of foaming agent and water.
[0025] 3. The top of the main body of the tank is equipped with an overflow port located on the side of the foaming agent filling port. If there is too much foaming agent in the foaming agent storage chamber, the excess foaming agent will be discharged through the overflow port. Moreover, when the pump module is working, the overflow port can be used to balance the pressure in the foaming agent storage chamber, so that the pump module can draw foaming agent from the foaming agent storage chamber through the pipeline. Attached Figure Description
[0026] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the services required in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0027] Figure 1 This is a perspective view of a toilet foam shield device according to an embodiment of the present utility model;
[0028] Figure 2 This is a perspective view of the main body of the box in a toilet foam shield device according to an embodiment of the present utility model;
[0029] Figure 3 This is one of the cross-sectional views of the main body of the box in a toilet foam shield device according to an embodiment of the present utility model (box cover omitted);
[0030] Figure 4This is a second cross-sectional view of the main body of the box in a toilet foam shield device according to an embodiment of the present utility model (box cover omitted);
[0031] Figure 5 This is a top view of the base of the main body of a toilet foam shield device according to an embodiment of the present invention.
[0032] Figure label:
[0033] 1-Box body; 2-Foaming nozzle; 3-Peristaltic pump; 4-Foaming agent storage chamber; 5-First mixing chamber; 6-Second mixing chamber; 7-Through hole; 8-Box cover; 9-Overflow port; 10-Top cover; 11-Base; 12-Groove; 13-Protrusion; 14-Limiting part; 15-Water inlet; 16-Foam liquid outlet; 17-Foaming agent outlet; 18-Foaming agent inlet. Detailed Implementation
[0034] The present invention will be further described below with reference to specific embodiments:
[0035] like Figures 1 to 5 As shown in the figure, a toilet foam shield device according to this embodiment includes a tank body 1, a foaming nozzle 2, and a peristaltic pump 3;
[0036] The main body 1 includes a base 11 and an upper cover 10 covering the base 11. The base 11 is provided with multiple limiting parts 14, and the base 11 is aligned and installed with the upper cover 10 through the multiple limiting parts 14. After the upper cover 10 and the base 11 form a whole, the interior of the main body 1 forms a foaming agent storage chamber 4 for storing foaming agent and a mixing chamber for mixing foaming agent and water. In addition, the bottom of the upper cover 10 is provided with a groove 12, and the top of the base 11 is provided with a protrusion 13 that matches the groove 12. The groove 12 and the protrusion 13 cooperate to ensure the sealing of the foaming agent storage chamber 4 and the mixing chamber.
[0037] Specifically, in this embodiment, the mixing chamber includes a first mixing chamber 5 and a second mixing chamber 6; a through hole 7 is provided between the first mixing chamber 5 and the second mixing chamber 6, the first mixing chamber 5 is connected to the second mixing chamber 6 through the through hole 7, and the first mixing chamber 5 is connected to an external water inlet pipe through a water inlet 15; the second mixing chamber 6 is provided with a foam liquid outlet 16, which is connected to the foam nozzle 2 through a pipe; the peristaltic pump 3 is connected to the foaming agent outlet 17 of the foaming agent storage chamber 4 and the through hole 7 between the first mixing chamber 5 and the second mixing chamber 6 through pipes respectively.
[0038] Specifically, in this embodiment, the through hole 7 between the first mixing chamber 5 and the second mixing chamber 6 is a square through hole 7, and the ratio of the height to the width of the square through hole 7 is one-half; the peristaltic pump 3 is connected to the foaming agent inlet 18 at the bottom of the through hole 7 through a pipe, and the inner diameter of the foaming agent inlet 18 is slightly less than the width of the square through hole 7.
[0039] Specifically, in this embodiment, the top of the box body 1 is provided with a foaming agent filling port and an overflow port 9 located on one side of the foaming agent filling port. The foaming agent filling port is provided with a box cover 8 to prevent dust from entering the foaming agent storage cavity 4.
[0040] The working principle of this embodiment is as follows:
[0041] The peristaltic pump 3 draws out the foaming agent from the foaming agent storage chamber 4 through the pipeline and pumps it into the through hole 7 between the first mixing chamber 5 and the second mixing chamber 6. Simultaneously, water from the external water inlet pipe enters the first mixing chamber 5 and then flows through the through hole 7 between the first mixing chamber 5 and the second mixing chamber 6. The foaming agent and water are mixed in the through hole 7, so that the foam liquid that gathers in the second mixing chamber 6 is a well mixed foam liquid. Finally, the foam liquid that already exists in the second mixing chamber 6 is pushed by the newly formed foam liquid that passes through the through hole 7 and reaches the foam nozzle 2 through the corresponding pipeline. The foam nozzle 2 then mixes the foam liquid with air and sprays out foam.
[0042] In addition, in this embodiment, apart from providing a through hole 7 between the first mixing chamber 5 and the second mixing chamber 6, only the peristaltic pump 3, the foaming nozzle 2 and the corresponding pipes are needed, making the valve circuit design of the foam shield relatively simple.
[0043] The through hole 7 is a square through hole 7, and the ratio of the height to the width of the square through hole 7 is one-half. The peristaltic pump 3 is connected to the foaming agent inlet 18 at the bottom of the through hole 7 through a pipe, and the inner diameter of the foaming agent inlet 18 is slightly smaller than the width of the square through hole 7, which can improve the mixing effect of foaming agent and water.
[0044] The top of the main body 1 is provided with an overflow port 9 located on the side of the foaming agent filling port. If there is too much foaming agent in the foaming agent storage chamber 4, the excess foaming agent will be discharged through the overflow port 9. Moreover, when the peristaltic pump 3 is working, the overflow port 9 can be used to balance the pressure in the foaming agent storage chamber 4, so that the peristaltic pump 3 can draw foaming agent from the foaming agent storage chamber 4 through the pipeline.
[0045] Finally, this embodiment also discloses a smart toilet that includes the aforementioned toilet foam shield device.
[0046] The above-described embodiments are merely preferred embodiments of this utility model and are not intended to limit the scope of implementation of this utility model. Therefore, all changes made in accordance with the shape and principle of this utility model should be covered within the protection scope of this utility model.
Claims
1. A toilet bowl foam shield device, characterized by, The device comprises a box body, a foaming nozzle and a pump module. The box body is internally provided with a foaming agent storage cavity for storing foaming agent and a mixing cavity for mixing foaming agent and water. The mixing cavity comprises a first mixing cavity and a second mixing cavity. A through hole is arranged between the first mixing cavity and the second mixing cavity, the first mixing cavity is communicated with the second mixing cavity through the through hole, and the first mixing cavity is communicated with an external water inlet pipeline. The second mixing cavity is communicated with the foaming nozzle through a pipeline. The pump module is communicated with the foaming agent storage cavity and the through hole between the first mixing cavity and the second mixing cavity through pipelines.
2. A toilet douching shield device according to claim 1, wherein The through hole is a square through hole, the ratio of the height to the width of the square through hole is 1 / 2 to 2 / 5. The pump module is communicated with a foaming agent inlet at the bottom of the through hole through a pipeline, and the inner diameter of the foaming agent inlet is slightly smaller than the width of the square through hole.
3. A toilet douching shield device according to claim 1, wherein The top of the box body is provided with a foaming agent filling port, and a box cover is arranged at the foaming agent filling port.
4. A toilet douch shield device according to claim 3, wherein The top of the box body is provided with an overflow port located at one side of the foaming agent filling port.
5. A toilet dolly according to claim 1, wherein, The box body comprises a base and an upper cover covering the base, and a sealing structure is arranged at the connection between the upper cover and the base.
6. A toilet dolly according to claim 5, wherein, The sealing structure comprises a groove arranged at the bottom of the upper cover and a convex portion arranged at the top of the base, and the convex portion is matched with the groove.
7. A toilet dolly according to claim 5, wherein, The base is provided with a plurality of limiting portions.
8. A toilet dolly according to claim 1, wherein, The pump module is a peristaltic pump.
9. A smart toilet, characterized by, The device comprises a toilet foam shield device according to any one of claims 1-8.