The cleaning water system of a smart toilet

Abstract

This utility model discloses a cleaning water circuit for a smart toilet, belonging to the field of smart toilet technology. In this cleaning water circuit, the water inlet assembly connects to an external water supply component and supplies water to a microbubble generating pipeline. The microbubble generating pipeline mixes water and air and outputs microbubble water. It includes a gas-liquid mixing pipeline section and a Venturi pipeline section arranged sequentially along a first direction. The inlet of the gas-liquid mixing pipeline section is connected to the water inlet assembly, and the air inlet is connected to an air pump. The Venturi pipeline section includes a constriction section, a throat, and a diffuser section arranged sequentially along the first direction. The inner diameter of the constriction section gradually decreases along the first direction, and the inner diameter of the diffuser section gradually increases along the first direction. The throat section has the smallest inner diameter in the Venturi pipeline section. The first direction is the water flow direction in the microbubble generating pipeline. The cleaning assembly is connected to the outlet of the Venturi pipeline section. This utility model achieves the beneficial effects of sterilization, antibacterial properties, and cleaning and stain removal in a smart toilet.

Description

Technical Field

[0001] This utility model relates to the field of smart toilet technology, and in particular to a cleaning water circuit for a smart toilet. Background Technology

[0002] One of the main differences between current smart toilets and ordinary toilets is that smart toilets have added a cleaning function, which refers to posterior wash and feminine wash. By installing at least one spray nozzle in the toilet, external water is delivered to the spray nozzle through the cleaning water path in the smart toilet, and then sprayed out by the spray nozzle to clean the buttocks and feminine private parts.

[0003] One related technology includes a water cleaning circuit for a smart toilet, comprising a water inlet assembly, an air pump, a mixing chamber, and a cleaning assembly. The water inlet of the water inlet assembly is connected to an external water supply component, the water outlet of the water inlet assembly is connected to the inlet of the mixing chamber, the air outlet of the air pump is connected to the inlet of the mixing chamber, the outlet of the mixing chamber is connected to the inlet of the cleaning assembly, and the outlet of the cleaning assembly is connected to the spray bar.

[0004] In the process of realizing this utility model, the inventors discovered that the related technology has at least the following problems: In the cleaning water circuit of the above-mentioned smart toilet, the gas pumped out by the gas outlet of the air pump forms a gas-liquid two-phase flow with the water flow at the inlet of the mixing chamber. After the gas-liquid two-phase flow passes through the mixing chamber, it generates millimeter-level bubble water that enters the cleaning component. Although the millimeter-level bubble water sprayed by the spray bar makes the water flow feel relatively gentle, the bubble size is too large to destroy the bacterial structure, and the dissolved oxygen concentration is low, so it has no sterilization or deep cleaning ability. Utility Model Content

[0005] This utility model embodiment provides a cleaning water path for a smart toilet, which can solve the problem that the cleaning water paths of smart toilets in related technologies lack sterilization or deep cleaning capabilities. The technical solution is as follows:

[0006] According to a first aspect of the present invention, a cleaning water circuit for an intelligent toilet is provided, comprising: a water inlet assembly, an air pump, a microbubble generating pipeline, and a cleaning assembly.

[0007] The water inlet assembly is used to connect to an external water supply component and supply water to the microbubble generating pipeline;

[0008] The microbubble generating pipeline, used to mix water and gas and output microbubble water, includes a gas-liquid mixing pipeline section and a Venturi pipeline section arranged sequentially along the first direction.

[0009] The gas-liquid mixing pipeline section is provided with a water inlet and an air inlet. The water inlet is connected to the water inlet assembly, and the air inlet is connected to the air pump.

[0010] The Venturi tube section includes a constriction section, a throat section, and a diffuser section arranged sequentially along a first direction. The inner diameter of the constriction section gradually decreases along the first direction, and the inner diameter of the diffuser section gradually increases along the first direction. The inner diameter of the throat section is the smallest in the Venturi tube section. The first direction is the direction of water flow in the microbubble generating pipeline.

[0011] The Venturi pipe section is provided with a water outlet, and the cleaning component is connected to the water outlet of the Venturi pipe section.

[0012] Optionally, the length of the diffuser in the first direction is greater than the length of the contraction in the first direction.

[0013] Optionally, the ratio of the inner diameter of the throat to the inner diameter of the inlet of the constriction section is 1:5 to 1:10.

[0014] Optionally, the air inlet of the gas-liquid mixing pipeline section provides an air path direction perpendicular to the first direction, so that the gas enters the gas-liquid mixing pipeline section perpendicular to the water flow direction.

[0015] Optionally, the cleaning assembly includes multiple cleaning pipelines;

[0016] The cleaning assembly also includes a switching valve, which has a switching valve inlet and multiple outlets. The switching valve inlet is connected to the outlet of the microbubble generating pipeline, and the multiple outlets are respectively connected to the multiple cleaning pipelines.

[0017] Optionally, the cleaning water path of the smart toilet also includes a spray bar, and the plurality of cleaning pipes are respectively connected to the spray bar.

[0018] Optionally, the water inlet assembly further includes a pressure regulating valve, the inlet of which is connected to the external water supply component, and the outlet of which is connected to the inlet of the microbubble generating pipeline.

[0019] Optionally, the water inlet assembly further includes a heating unit, the water inlet of which is connected to the water outlet of the pressure regulating valve, and the water outlet of which is connected to the water inlet of the microbubble generating pipeline.

[0020] Optionally, the cleaning water circuit of the smart toilet also includes an adapter, one end of which is fitted onto the outlet of the nanobubble generator, and the other end of which is fitted onto the inlet of the cleaning component.

[0021] The beneficial effects of the technical solution provided by this utility model embodiment are:

[0022] In the cleaning water circuit of the smart toilet provided in this embodiment of the utility model, the water inlet component is used to connect to the external water supply component and supply water to the microbubble generating pipeline. The microbubble generating pipeline is used to mix water and air and output microbubble water. It includes a gas-liquid mixing pipeline section and a venturi pipeline section arranged sequentially along the first direction. The gas-liquid mixing pipeline section is provided with a water inlet and an air inlet. The water inlet is connected to the water inlet component, and the air inlet is connected to the air pump. The venturi pipeline section includes a constriction section, a throat section, and a diffuser section arranged sequentially along the first direction. The inner diameter of the constriction section gradually decreases along the first direction, and the inner diameter of the diffuser section gradually increases along the first direction. The throat section has the smallest inner diameter in the venturi pipeline section. The first direction is the water flow direction in the microbubble generating pipeline. The end of the venturi pipeline section is provided with a water outlet section, and the cleaning component is connected to the water outlet section of the venturi pipeline section. Water flowing from the inlet of the water inlet component mixes with gas pumped from the gas outlet of the air pump at the inlet of the microbubble generating pipe, forming a gas-liquid two-phase flow. As the gas-liquid two-phase flow passes through the contraction section, the flow velocity increases and the pressure decreases. When it passes through the throat, the gas reaches saturation in the water flow due to the pressure reduction. When it passes through the diffusion section, the pressure gradually recovers, and the dissolved gas precipitates out due to supersaturation. Due to the fluid shearing action, the bubbles break, thus forming microbubble water containing nano-sized bubbles at the outlet of the microbubble generating pipe. The microbubble water continuously contracts and eventually breaks, generating local high pressure and micro-jet, which can sterilize and clean, thereby achieving the beneficial effects of sterilization, bacteriostasis, cleaning and stain removal of the smart toilet. Attached Figure Description

[0023] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below 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.

[0024] Figure 1 This is a schematic diagram of the cleaning water circuit of a smart toilet according to an embodiment of the present invention;

[0025] Figure 2 yes Figure 1 The diagram shows a three-dimensional structure of the cleaning water path of a smart toilet.

[0026] Figure 3 yes Figure 1 A partial structural diagram of the cleaning water path of a smart toilet is shown.

[0027] Figure 4 This is a schematic diagram of the cleaning water circuit of another smart toilet shown in an embodiment of the present invention;

[0028] Figure 5 yes Figure 4An exploded view of the cleaning water system of a smart toilet is shown.

[0029] Figure 6 yes Figure 4 The diagram shows a partial structural diagram of the cleaning water path of a smart toilet.

[0030] Figure 7 yes Figure 4 The diagram shows the water flow structure of the cleaning water path in a smart toilet.

[0031] Explanation of reference numerals in the attached figures:

[0032] 1-Water inlet assembly, 11-Water inlet of water inlet assembly, 12-Water outlet of water inlet assembly, 13-Pressure regulator valve, 14-Heating unit;

[0033] 2-Air pump, 21-Air inlet of gas-liquid mixing pipeline section, air injection pipe 22;

[0034] 3-Microbubble generating pipeline, 31-Gas-liquid mixing pipeline section, 311-Inlet of gas-liquid mixing pipeline section, 32-Venturi pipeline section, 321-Contraction section, 322-Throat section, 323-Diffuser section;

[0035] 4-Cleaning component, 41-Inlet of cleaning component, 42-Buttocks cleaning pipeline, 43-Female cleaning pipeline, 44-Self-cleaning pipeline, 45-Switching valve;

[0036] 5-Base plate;

[0037] 6-Adapter, 61-O-ring seal;

[0038] 7-Spray bar.

[0039] The accompanying drawings have illustrated specific embodiments of the present invention, which will be described in more detail below. These drawings and descriptions are not intended to limit the scope of the present invention in any way, but rather to illustrate the concept of the present invention to those skilled in the art through reference to specific embodiments. Detailed Implementation

[0040] To make the objectives, technical solutions, and advantages of this utility model clearer, the embodiments of this utility model will be described in further detail below with reference to the accompanying drawings.

[0041] Figure 1 This is a schematic diagram of the cleaning water circuit of a smart toilet according to an embodiment of the present invention. Figure 2 yes Figure 1 The diagram shown is a 3D structural representation of the cleaning water path of a smart toilet. Figure 3 yes Figure 1 The diagram shows a partial structural representation of the cleaning water path in a smart toilet. Figure 3The diagram shows the structure of the microbubble generation pipeline in the cleaning water circuit of a smart toilet, as shown below. Figure 1 , Figure 2 and Figure 3 As shown, the cleaning water circuit of this smart toilet includes: water inlet component 1, air pump 2, microbubble generating pipeline 3, and cleaning component 4.

[0042] Water inlet assembly 1 is used to connect to external water supply components and supply water to microbubble generating pipeline 3.

[0043] The microbubble generating pipeline 3 is used to mix water and gas and output microbubble water, including a gas-liquid mixing pipeline section 31 and a Venturi pipeline section 32 arranged sequentially along the first direction F;

[0044] The gas-liquid mixing pipeline section 31 is provided with a water inlet 311 and an air inlet 21. The water inlet 311 is connected to the water inlet assembly 1, and the air inlet 21 is connected to the air pump 2.

[0045] The Venturi pipe section 32 includes a constriction section 321, a throat section 322, and a diffuser section 323 arranged sequentially along the first direction F. The inner diameter of the constriction section 321 gradually decreases along the first direction F, and the inner diameter of the diffuser section 323 gradually increases along the first direction F. The throat section 322 has the smallest inner diameter in the Venturi pipe section. The first direction F is the direction of water flow in the microbubble generating pipe 3.

[0046] The Venturi pipe section 32 is provided with a water outlet, and the cleaning component 4 is connected to the water outlet of the Venturi pipe section 32.

[0047] The working principle of the cleaning water circuit of the smart toilet proposed in this utility model embodiment is as follows: water flows from the external water supply component into the water inlet component 1, and flows into the gas-liquid mixing pipe section 31 from the water outlet 12 of the water inlet component. In the gas-liquid mixing pipe section 31, it mixes with the gas pumped out by the air pump 2 to form a gas-liquid two-phase flow. The gas-liquid two-phase flow flows from the inlet of the larger inner diameter contraction section 321 to the outlet of the smaller inner diameter contraction section 321. The inner diameter of the contraction section 321 gradually decreases, causing the flow velocity to increase. According to Bernoulli's principle, the fluid velocity increases and the pressure decreases. Since the throat 322 is the section with the smallest inner diameter in the Venturi tube section 32, the flow velocity reaches its maximum value, the static pressure drops to its minimum, and the gas solubility becomes saturated. The gas-liquid two-phase flow enters the diffuser section 323. The inner diameter of the diffuser section 323 gradually increases with the direction of fluid flow, the flow velocity of the gas-liquid two-phase flow decreases, the pressure recovers, and the supersaturated gas is released, forming micron-sized bubbles. The high-speed fluid shear force breaks the micron-sized bubbles into nano-sized bubbles, thereby forming microbubble water containing nano-sized bubbles. After entering the cleaning component 4, the microbubble water is sprayed out from the outlet of the cleaning component 4.

[0048] In summary, the intelligent toilet cleaning water circuit provided by this utility model embodiment adopts the above-mentioned innovative microbubble generating pipeline design, which can generate microbubble water rich in nano-sized bubbles, and spray it out through the cleaning component. During the cleaning process, the microbubble water bubbles continuously shrink and eventually burst, forming local high pressure and micro-jet, thereby achieving the dual effects of efficient sterilization and deep cleaning.

[0049] like Figure 3 As shown, the length of the diffuser 323 in the first direction F is greater than the length of the contraction 321 in the first direction F. Since the flow velocity of the gas-liquid two-phase flow slows down and the pressure gradually recovers after flowing into the diffuser 323, a longer diffuser 323 results in a gentler pressure gradient, more stable flow, and sufficient shear time for bubble breakage. A longer diffuser length extends the fluid passage time, thus providing sufficient time for bubble precipitation and nanoscale breakage.

[0050] Optionally, the ratio of the inner diameter of the throat to the inner diameter of the inlet of the constriction section is 1:5 to 1:10. This inner diameter ratio affects the flow velocity of the gas-liquid two-phase flow, thereby affecting the formation of nanoscale bubbles. For example, when the ratio of the inner diameter of the throat to the inlet inner diameter of the constriction section is too large, it will cause gas to precipitate prematurely, forming large bubbles in the constriction section and reducing the generation efficiency of the microbubble generation pipeline. The ratio of the inner diameter of the throat to the inlet inner diameter of the constriction section can also be other values, and this embodiment of the present invention does not limit it.

[0051] Optionally, the air inlet of the gas-liquid mixing pipeline section provides an airflow direction perpendicular to the first direction F, so that the gas enters the gas-liquid mixing pipeline section perpendicular to the water flow direction. For example, such as... Figure 3 As shown, one end of the gas-liquid mixing pipeline section 31 is provided with the water inlet 311, and the gas inlet 21 is provided at any circumferential position on the pipe wall of the gas-liquid mixing pipeline section 31. The gas inlet 21 of the gas-liquid mixing pipeline section is connected to the gas outlet of the pipe connected to the outlet of the gas pump. Thus, the gas is injected vertically into the water flow, thereby forming a relatively strong lateral shear force in the water flow, which increases the contact area between the gas and the water flow, improves the gas dissolution rate, and also enables the gas and liquid to mix more uniformly, making the gas-liquid two-phase flow entering the microbubble generation pipeline more stable.

[0052] In addition, the air inlet 21 of the gas-liquid mixing pipeline section is set as a pipe connected to the outlet of the air pump. An air injection pipe 22 is also provided at the connection of the air inlet 21 of the gas-liquid mixing pipeline section. The air injection pipe 22 is directly connected to the water circuit. The inner diameter of the air injection pipe 22 is smaller than the inner diameter of the air inlet 21 of the gas-liquid mixing pipeline section. That is, the inner diameter of the air injection pipe 22 is smaller than the inner diameter of the pipe used to connect to the outlet of the air pump. When gas is injected into the water flow, the inner diameter of the air injection pipe 22 that flows through it is reduced, which can increase the gas jet speed, enhance the gas-liquid mixing efficiency, and further improve the generation quality of the microbubble generation pipeline.

[0053] Figure 4 This is a schematic diagram of the cleaning water circuit of another smart toilet shown in an embodiment of the present invention, as follows: Figure 4 As shown, the cleaning assembly includes multiple cleaning pipelines; the cleaning assembly also includes a switching valve 45, which includes a switching valve inlet and multiple outlets. The switching valve inlet is connected to the outlet of the microbubble generating pipeline 3, and the multiple outlets are respectively connected to multiple cleaning pipelines. The multiple cleaning pipelines may include a buttock cleaning pipeline 42 (or posterior wash pipeline), a feminine wash pipeline 43 (or hymenal wash pipeline), and a self-cleaning pipeline 44 (for self-cleaning of the spray bar). The switching valve 45 includes a first outlet, a second outlet, and a third outlet. The switching valve inlet is connected to the outlet of the microbubble generating pipeline 3, the first outlet is connected to the inlet of the buttock cleaning pipeline 42, the second outlet is connected to the inlet of the feminine wash pipeline 43, and the third outlet is connected to the inlet of the self-cleaning pipeline 44. Because of their different functions, the buttock cleaning pipeline 42, the feminine wash pipeline 43, and the self-cleaning pipeline 44 have different water flow patterns. For example, the buttock cleaning pipeline 42 is typically in a high-flow mode, while the feminine wash pipeline 43 is in a low-flow mode, resulting in a gentler water flow. The switching valve 45 in this embodiment can be a three-way integrated switching valve, which can not only reduce pipeline joints, but also reduce the risk of leakage.

[0054] like Figure 4 As shown, the smart toilet's cleaning water system also includes a spray bar 7. The outlets of the posterior washing pipe 42, feminine washing pipe 43, and self-cleaning pipe 44 are respectively connected to the spray bar 7. The spray bar 7 can switch between different cleaning pipes according to the water flow in the cleaning assembly, thus moving to different positions. The spray bar 7 can also retract into the cleaning assembly when not in use to prevent contamination.

[0055] like Figure 4 As shown, the water inlet assembly also includes a pressure regulating valve 13. The inlet of the pressure regulating valve 13 is connected to an external water supply component, and the outlet of the pressure regulating valve 13 is connected to the inlet of the microbubble generating pipeline 3. The pressure regulating valve 13 is connected to the external water supply component, which is usually a municipal water supply. The pressure regulating valve 13 can control the water pressure of the municipal water supply to avoid sudden water pressure changes from impacting the microbubble generator.

[0056] like Figure 4As shown, the water inlet assembly also includes a heating unit 14. The inlet of the heating unit 14 is connected to the outlet of the pressure regulating valve 13, and the outlet of the heating unit 14 is connected to the inlet of the microbubble generating pipeline 3. That is, the water supplied by the external water supply component passes through the pressure regulating valve to stabilize the water pressure before entering the heating unit for heating. The heated water then enters the microbubble generating pipeline 3 through the inlet and mixes with the gas. Typically, the heating unit can heat the water to between 20-40 degrees Celsius within a few seconds, making the rinsing water temperature comfortable. The specific heating time and temperature are not limited in this embodiment of the invention.

[0057] Figure 5 yes Figure 4 The exploded view of the cleaning water circuit of the smart toilet shown is as follows: Figure 5 As shown, the cleaning water circuit of the smart toilet also includes a base plate 5, a pressure regulating valve 13, a heating element 14, an air pump 2, a microbubble generating pipeline 3, and a cleaning assembly 4, all of which are fixedly installed on the base plate. The base plate 5 is used to fix and support the above-mentioned components. The specific connection method between the components and the base plate can be a snap-fit ​​connection or a bolt connection. The specific connection method is not limited in this embodiment of the present invention.

[0058] Figure 6 yes Figure 1 The diagram shows a partial structural representation of the cleaning water system in a smart toilet. Figure 6 a is a three-dimensional structural diagram of the microbubble generation pipeline connected to the adapter. Figure 6 b is Figure 6 The exploded view of a, combined with Figure 3 and Figure 6 As shown, the cleaning water circuit of the smart toilet also includes an adapter 6. One end of the adapter 6 is fitted onto the outlet of the microbubble generating pipe 3, and the other end of the adapter 6 is fitted onto the inlet (not shown in the figure) of the cleaning component. The other end of the microbubble generating pipe 3 is the water inlet S and the gas inlet Q. The adapter 6, as the connecting component between the microbubble generating pipe 3 and the cleaning component, allows the microbubble generating pipe to be adapted to various pipe specifications. In addition, an O-ring seal 61 can be provided between the adapter 6 and the microbubble generating pipe 3 to prevent microbubble water from leaking from the outlet of the microbubble generating pipe.

[0059] Figure 7 yes Figure 4The diagram shows the water flow structure of the cleaning water circuit of the smart toilet. Water flows from the external water supply component into the pressure regulating valve 13. After pressure regulation, the water flows into the heating unit 14 for heating. The heated water flows into the microbubble generating pipeline 3. The air pump 2 pumps out gas (air) and it enters the microbubble generating pipeline 3 along with the pipeline. The microbubble water flowing out of the microbubble generating pipeline 3 enters the switching valve in the cleaning assembly 4 (the switching valve is located below the cleaning assembly, so it is not shown in the figure). After passing through the switching valve, it enters different pipelines and is then sprayed out from the outlet of the cleaning assembly.

[0060] In this invention, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. The term "multiple" refers to two or more unless otherwise expressly defined.

[0061] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A cleaning water path of a smart toilet, characterized by, include: Water inlet assembly, air pump, microbubble generation pipeline and cleaning assembly; The water inlet assembly is used to connect to an external water supply component and supply water to the microbubble generating pipeline; The microbubble generating pipeline, used to mix water and gas and output microbubble water, includes a gas-liquid mixing pipeline section and a Venturi pipeline section arranged sequentially along the first direction. The gas-liquid mixing pipeline section is provided with a water inlet and an air inlet. The water inlet is connected to the water inlet assembly, and the air inlet is connected to the air pump. The Venturi tube section includes a constriction section, a throat section, and a diffuser section arranged sequentially along a first direction. The inner diameter of the constriction section gradually decreases along the first direction, and the inner diameter of the diffuser section gradually increases along the first direction. The inner diameter of the throat section is the smallest in the Venturi tube section. The first direction is the direction of water flow in the microbubble generating pipeline. The Venturi pipe section is provided with a water outlet, and the cleaning component is connected to the water outlet of the Venturi pipe section.

2. The cleaning water path of the intelligent toilet according to claim 1, wherein The length of the diffuser in the first direction is greater than the length of the contraction in the first direction.

3. The cleaning water path of the intelligent toilet according to claim 1, wherein The ratio of the inner diameter of the throat to the inner diameter of the inlet of the constriction section is 1:5 to 1:

10.

4. The cleaning water path of the intelligent toilet according to claim 1, wherein The air inlet of the gas-liquid mixing pipeline section provides an air path direction perpendicular to the first direction, so that the gas enters the gas-liquid mixing pipeline section perpendicular to the water flow direction.

5. The cleaning water path of the intelligent toilet according to claim 1, wherein The cleaning assembly includes a switching valve and multiple cleaning pipelines. The switching valve includes a switching valve inlet and multiple outlets. The switching valve inlet is connected to the outlet of the microbubble generating pipeline, and the multiple outlets are respectively connected to the multiple cleaning pipelines.

6. The cleaning water path of the intelligent toilet according to claim 5, wherein The smart toilet's cleaning water path also includes a spray bar, and the multiple cleaning pipes are respectively connected to the spray bar.

7. The cleaning water path of a smart toilet according to claim 1, wherein The water inlet assembly also includes a pressure regulating valve, the inlet of which is connected to the external water supply component, and the outlet of which is connected to the inlet of the microbubble generating pipeline.

8. The cleaning water path of the intelligent toilet according to claim 7, wherein The water inlet assembly also includes a heating unit, the water inlet of which is connected to the water outlet of the pressure stabilizing valve, and the water outlet of which is connected to the water inlet of the microbubble generating pipeline.

9. The cleaning water path of the intelligent toilet according to claim 1, wherein The smart toilet's cleaning water circuit also includes an adapter, one end of which is fitted onto the outlet of the microbubble generating pipe, and the other end of which is fitted onto the inlet of the cleaning component.

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