Foam shield system for closestool

By combining water and air components, a thickening agent is sprayed and mixed with a foaming agent to form a foam layer, solving the problem that existing toilet foam shields are easily broken and achieving a more effective splash prevention effect. The thickening agent thickens rapidly after mixing with water to form a stable foam layer.

CN224119662UActive Publication Date: 2026-04-14GUANGDONG LEHUA HOME FURNISHING CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-21
Publication Date
2026-04-14

AI Technical Summary

Technical Problem

Existing toilet foam shields have a thin foam layer, making them easy to break and crack, thus losing their splash-proof function and causing embarrassing water splashes.

Method used

The system combines water and air components. The thickening agent is sprayed through the air component and the foaming agent is mixed with the water component to form a foam layer. The thickening agent mixes with water and thickens rapidly to form a thick foam layer, thus reducing water splashing. The air component includes a powder box, a powder nozzle, and an air pump, while the water component includes a water pump and a mixing pipeline.

Benefits of technology

It effectively forms a thick foam layer, reducing water splashing and improving splash protection. The thickener thickens rapidly after mixing with water, reducing the height of liquid splashing and ensuring the stability of splash protection.

✦ Generated by Eureka AI based on patent content.

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Abstract

The foam shield system comprises a water path assembly and an air path assembly, the water path assembly comprises a water source pipeline, a foaming agent pipeline and a mixing pipeline, a first pump body is arranged on the water source pipeline, one end of the foaming agent pipeline is connected with a foaming agent box, and the other end of the foaming agent pipeline and the water source pipeline are converged in the mixing pipeline; the foaming agent pipeline is provided with a second pump body, the mixing pipeline is provided with a foam maker, the outlet end of the mixing pipeline is communicated with the inner cavity of the closestool, the gas circuit assembly comprises a gas inlet pipeline, a powder outlet pipeline and a powder box, one end of the powder outlet pipeline is connected with a powder spraying nozzle, and the other end of the powder outlet pipeline is connected with the powder box. According to the utility model, a thickening agent is sprayed into the trap of the inner cavity of the closestool through the gas path assembly, then a foam agent and water are mixed through the water path assembly to prepare foam water, and then the foam water flows to the trap to form a foam layer. In the process, the thickening agent is quickly thickened after being in contact with water, the impact force of a heavy object is buffered, water spray formation is reduced, and meanwhile, the foam layer has a certain splash-proof effect.
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Description

Technical Field

[0001] This utility model relates to the field of foam shield technology, and in particular to a foam shield system for toilets. Background Technology

[0002] The primary function of a toilet's water trap is to prevent unpleasant odors from backing up from the sewer and to prevent waste from sticking to the toilet bowl and making it difficult to flush away. However, when waste falls into the water trap, it easily splashes water droplets, which may get on the person, causing embarrassment and discomfort. Some smart toilets now feature a foam shield that forms a foam layer in the water trap to prevent splashing, odor control, and sticking. However, the foam layer formed by ordinary foam shields is relatively thin and easily broken by flushing, losing its splash-proof function. Utility Model Content

[0003] This invention aims to at least partially solve one of the aforementioned technical problems in the related art. To this end, this invention proposes a foam shield system for toilets.

[0004] To achieve the above objectives, the technical solution of this utility model is as follows:

[0005] According to an embodiment of the present invention, a toilet foam shield system includes a water circuit assembly and an air circuit assembly. The water circuit assembly includes a water source pipe, a foaming agent pipe, and a mixing pipe. A first pump body is provided on the water source pipe. One end of the foaming agent pipe is connected to a foaming agent box, and the other end merges with the water source pipe into the mixing pipe. A second pump body is provided on the foaming agent pipe. A foamer is provided on the mixing pipe. The outlet end of the mixing pipe is connected to the inner cavity of the toilet. The air circuit assembly includes an air inlet pipe, a powder outlet pipe, and a powder box. An air pump is provided on the air inlet pipe, and the air inlet pipe is connected to the powder box. One end of the powder outlet pipe is connected to a powder nozzle, and the other end is connected to the powder box. The powder nozzle faces the inner cavity of the toilet.

[0006] The toilet foam shield system according to the embodiments of this utility model has at least the following beneficial effects:

[0007] This invention features a foaming agent box for holding foaming agents and a powder box for holding thickening agent powder. When the foam shield system is running, the thickening agent is first sprayed into the water trap inside the toilet bowl via the air path component. Then, the foaming agent is mixed with water via the water path component to create foamy water, which then flows into the water trap to form a foam layer. During this process, the thickening agent rapidly thickens upon contact with water, quickly increasing the liquid viscosity, thus buffering the impact of heavy objects, reducing water splash formation, and lowering the height of liquid splashing. Simultaneously, the foam layer itself provides a certain degree of splash protection.

[0008] According to some embodiments of the present invention, the powder box has a powder outlet at the top and an air inlet at the bottom. The powder outlet is connected to the powder outlet pipeline, and the air inlet is connected to the air inlet pipeline. A desiccant pack is laid at the bottom inside the powder box.

[0009] According to some embodiments of the present invention, a mesh screen is provided at the top of the powder box, and the mesh screen covers the powder outlet.

[0010] According to some embodiments of the present invention, the sieve aperture on the outer packaging of the desiccant packet is smaller than the particle size of the powder contained in the powder box.

[0011] According to some embodiments of this utility model, the foaming device is a brush.

[0012] According to some embodiments of the present invention, the outlet end of the mixing pipe is located at the left rear or right rear of the top of the toilet cavity, and the water outlet direction of the outlet end is towards the front of the toilet cavity to form a vortex water flow.

[0013] According to some embodiments of this utility model, the powder spray nozzle is directed toward the water trap inside the toilet bowl.

[0014] According to some embodiments of this utility model, a flow meter is provided on the air intake pipe.

[0015] According to some embodiments of the present invention, the first pump body is a water pump, and the second pump body is a peristaltic pump.

[0016] According to some embodiments of the present invention, the powder box contains a mixture of thickener and inorganic salt powder, and the foaming agent box contains a foaming agent containing fatty alcohol polyoxyethylene ether sulfate.

[0017] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0018] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0019] Figure 1 This is a schematic diagram of the overall structure of the toilet foam shield system of this utility model;

[0020] Figure 2 This is a schematic diagram of the powder box of this utility model.

[0021] Reference numerals: Water source pipeline 100, first pump body 110, foaming agent pipeline 200, foaming agent box 210, second pump body 220, mixing pipeline 300, brush 310, air inlet pipeline 400, air pump 410, flow meter 420, powder outlet pipeline 500, powder spray nozzle 510, powder box 600, thickening agent 610, powder outlet 620, air inlet 630, desiccant pack 640, screen 650, toilet inner cavity 700, water trap 710. Detailed Implementation

[0022] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this utility model, and should not be construed as limiting this utility model.

[0023] In the description of this utility model, it should be understood that the terms "front", "rear", "left", "right", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0024] Reference Figure 1-2 A toilet foam shield system includes a water circuit assembly and an air circuit assembly. The water circuit assembly includes a water source pipe 100, a foaming agent pipe 200, and a mixing pipe 300. The water source pipe 100 is connected to an external water circuit, which provides water for the foam shield system during operation. A first pump body 110 is installed on the water source pipe 100. One end of the foaming agent pipe 200 is connected to a foaming agent box 210, and the other end merges with the water source pipe 100 into the mixing pipe 300. The toilet is equipped with a second pump body 220 and a foamer on the mixing pipe 300. The outlet end of the mixing pipe 300 is connected to the inner cavity of the toilet 700. The air circuit assembly includes an air inlet pipe 400, a powder outlet pipe 500 and a powder box 600. An air pump 410 is provided on the air inlet pipe 400 and the air inlet pipe 400 is connected to the powder box 600. One end of the powder outlet pipe 500 is connected to a powder nozzle 510 and the other end is connected to the powder box 600. The powder nozzle 510 faces the inner cavity of the toilet 700.

[0025] Working principle:

[0026] (1) When the user starts the foam shield function, the air pump 410 is started, so that the gas flows through the powder box. The gas carries the thickening agent 610 in the powder box 600 into the powder spray nozzle 510. Under the action of air pressure, the thickening agent 610 is sprayed out from the nozzle and sprinkled on the water in the water storage bay 710 and the surrounding inner wall.

[0027] (2) The first pump body 110 is turned on to pump out clean water, and the second pump body 220 is turned on to pump out foam preparation from the foam agent box 210. The foam preparation is mixed with clean water and flows to the foamer through the mixing pipe 300. Under the action of the foamer, foam water is formed and flows in a vortex direction along the inner cavity 700 of the toilet, and finally flows into the water trap 710 to form a foam layer.

[0028] In some embodiments of this utility model, the powder box 600 has a powder outlet 620 at the top and an air inlet 630 at the bottom. The powder outlet 620 is connected to the powder outlet pipe 500, and the air inlet 630 is connected to the air inlet pipe 400. A desiccant pack 640 is placed at the bottom of the powder box 600. The thickening agent 610 is located above the desiccant pack 640. Gas enters from the bottom of the powder box 600, is dehumidified by the desiccant pack 640, and is carried by the airflow into the powder spray nozzle 510 to complete the powder spraying. The desiccant pack 640 is located at the bottom of the powder box 600 and absorbs moisture from the humid air entering from the air inlet 630 through the sieve holes of its outer packaging, significantly reducing the internal humidity of the powder box 600 and preventing the thickening agent 610 from clumping due to moisture absorption.

[0029] In some embodiments of this utility model, a mesh screen 650 is provided at the top of the powder box 600, covering the powder outlet 620. The mesh screen 650 can control the amount of powder dispensed. The aperture of the mesh screen 650 limits the rate at which the powder passes through, preventing a large amount of powder from being spilled out at once, thus achieving more precise dosage control. Moreover, the mesh screen 650 also has the function of uniformly dispersing the powder. Through the resistance of the mesh screen 650, the powder will naturally disperse when it is dispensed, forming a more uniform distribution.

[0030] In some embodiments of this utility model, the sieve aperture on the outer packaging of the desiccant pack 640 is smaller than the particle size of the powder contained in the powder box 600, ensuring that the thickening agent 610 powder does not penetrate into the interior of the desiccant pack 640 and avoids mixing between the two.

[0031] In some embodiments of this utility model, the foaming device is a brush 310. The brush 310 has a simple structure and low cost; the mixture of foaming agent and water can be foamed by passing it through the brush 310.

[0032] In some embodiments of this invention, the powder nozzle 510 is directed toward the water trap 710 of the toilet bowl cavity 700. This allows as much powder as possible to enter the water trap 710, reducing the problem of powder adhering to the wall of the toilet bowl cavity 700 and being difficult to flush away.

[0033] In some embodiments of this utility model, the outlet end of the mixing pipe 300 is located to the left rear or right rear of the top of the toilet inner cavity 700, and the water outlet direction is towards the front of the toilet inner cavity 700 to form a vortex water flow. When the thickening agent 610 is sprayed into the water trap 710, some of the thickening agent 610 powder may fly onto the wall of the toilet inner cavity 700. Subsequently, the foamy water is flushed out in a vortex water flow. When the foamy water passes through the inner cavity wall, it carries away the thickening agent 610 on it. This process has a mixing effect. Finally, it flows into the water trap 710 and mixes with the thickening agent 610 in the water trap 710. This method can make the thickening agent 610 fully dissolve in water, and the impact force of the vortex water flow has a certain stirring and mixing effect, accelerating the dissolution of the thickener in water.

[0034] In some embodiments of this invention, a flow meter 420 is provided on the air inlet pipe 400. The flow meter 420 controls the gas flow rate entering the powder box 600, thereby controlling the amount of thickening agent 610 dispensed.

[0035] In some embodiments of this invention, the first pump body 110 is a water pump, and the second pump body 220 is a peristaltic pump. Since the amount of foam preparation used each time is very small, the peristaltic pump provides very precise flow control, high repeatability, and strong stability.

[0036] In some embodiments of this invention, the powder box 600 contains a mixture of thickener and inorganic salt powder, and the foaming agent box 210 contains a foaming preparation containing fatty alcohol polyoxyethylene ether sulfate (AES). Fatty alcohol polyoxyethylene ether sulfate (AES) is easily thickened by inorganic salts (such as NaCl). When the foaming preparation and the thickener 610 are mixed, the inorganic salts act on the AES, causing it to thicken rapidly and increasing the liquid viscosity.

[0037] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A foam shield system for a toilet, characterized in that The system includes a water circuit assembly and an air circuit assembly. The water circuit assembly includes a water source pipeline (100), a foaming agent pipeline (200), and a mixing pipeline (300). The water source pipeline (100) is equipped with a first pump body (110). One end of the foaming agent pipeline (200) is connected to a foaming agent box (210), and the other end merges with the water source pipeline (100) into the mixing pipeline (300). The foaming agent pipeline (200) is equipped with a second pump body (220), and the mixing pipeline (300) is equipped with a foamer. The outlet end of the mixing pipe (300) is connected to the inner cavity of the toilet (700). The air circuit assembly includes an air inlet pipe (400), a powder outlet pipe (500), and a powder box (600). An air pump (410) is provided on the air inlet pipe (400). The air inlet pipe (400) is connected to the powder box (600). One end of the powder outlet pipe (500) is connected to a powder nozzle (510), and the other end is connected to the powder box (600). The powder nozzle (510) faces the inner cavity of the toilet (700).

2. A toilet d foam shield system according to claim 1, characterized in that The powder box (600) has a powder outlet (620) at the top and an air inlet (630) at the bottom. The powder outlet (620) is connected to the powder outlet pipe (500), and the air inlet (630) is connected to the air inlet pipe (400). A desiccant pack (640) is laid at the bottom of the powder box (600).

3. The toilet foam shield system according to claim 2, characterized in that, The powder box (600) is equipped with a mesh screen (650) at the top, which covers the powder outlet (620).

4. The toilet foam shield system according to claim 2, characterized in that, The sieve aperture on the outer packaging of the desiccant pack (640) is smaller than the particle size of the powder contained in the powder box (600).

5. The toilet foam shield system according to claim 1, characterized in that, The foaming device is a brush (310).

6. The toilet foam shield system according to claim 5, characterized in that, The outlet end of the mixing pipe (300) is located at the left rear or right rear of the top of the toilet cavity (700), and the water outlet direction is towards the front of the toilet cavity (700) to form a vortex water flow.

7. The toilet foam shield system according to claim 1, characterized in that, The powder nozzle (510) is directed toward the water trap (710) of the toilet bowl cavity (700).

8. The toilet foam shield system according to claim 1, characterized in that, A flow meter (420) is installed on the air intake pipe (400).

9. The toilet foam shield system according to claim 1, characterized in that, The first pump body (110) is a water pump, and the second pump body (220) is a peristaltic pump.