Microbubble generating device and intelligent closestool

Abstract

The intelligent closestool comprises a microbubble generating device and an intelligent closestool body. The intelligent closestool body comprises the microbubble generating device, a closestool body and a flushing device. The microbubble generating device comprises a microbubble generating assembly, the microbubble generating assembly is provided with a water inlet, a water outlet, a compression section and an expansion section, the compression section and the expansion section are arranged in the direction from the water inlet to the water outlet and communicate with each other, and the overflowing area of the compression section is in a decreasing trend from the water inlet to the expansion section. The overflowing area of the expansion section tends to be expanded from the compression section to the water outlet; the spray head assembly is communicated with the water outlet, the spray head assembly is provided with a water outlet cavity and a spray hole communicated with the water outlet cavity, a water passing hole communicated with the water outlet is formed in the peripheral wall of the water outlet cavity, and the center line of the water passing hole does not intersect with the center axis of the water outlet cavity, so that fluid flowing in from the water passing hole can swirl to the spray hole in the water outlet cavity. According to the technical scheme, the cleaning effect is improved, and the cleaning range is widened.

Description

Technical Field

[0001] The utility model relates to the technical field of intelligent toilets, and particularly relates to a microbubble generating device and an intelligent toilet. Background Art

[0002] At present, microbubble technology has applications in multiple fields, including water treatment, medical treatment, agriculture, etc. In the cleaning field, microbubbles can penetrate into tiny gaps due to their extremely small volume, and the micro-burst effect generated when the bubbles burst can effectively remove dirt. In recent years, it has also been explored for cleaning sanitary ware. Existing products use microbubble water for hip washing, aiming to clean more gently and efficiently. The water produced in the prior art is ordinary small bubbles, and the cleaning effect is poor. Summary of the Utility Model

[0003] The main purpose of the utility model is to propose a microbubble generating device, aiming to improve the cleaning effect and the cleaning range.

[0004] To achieve the above purpose, a microbubble generating device proposed by the utility model includes:

[0005] A microbubble generating component, the microbubble generating component is provided with a water inlet, a water outlet, and a compression section and an expansion section which are arranged in sequence and communicated from the water inlet to the water outlet direction. The cross-sectional area of the compression section decreases from the water inlet to the expansion section, and the cross-sectional area of the expansion section increases from the compression section to the water outlet; and

[0006] A spray head component, the spray head component is communicated with the water outlet, the spray head component is provided with a water outlet cavity and spray holes communicated with the water outlet cavity. The peripheral wall of the water outlet cavity is provided with water passing holes communicated with the water outlet. The center line of the water passing holes does not intersect with the central axis of the water outlet cavity, so that the fluid flowing in from the water passing holes can swirl in the water outlet cavity to the spray holes.

[0007] In an embodiment, the microbubble generating component includes a spray pipe and a flow disturbing part arranged in the spray pipe. The compression section and the expansion section are formed inside the spray pipe. The flow disturbing part is located between the compression section and the expansion section, and the flow disturbing part has a plurality of flow passing holes connecting the compression section and the expansion section.

[0008] In an embodiment, the flow disturbing part has at least one rib, the rib extends along the radial or axial direction of the spray pipe, and the flow passing holes are formed between the rib and the inner wall of the spray pipe.

[0009] In an embodiment, the compression section is provided with at least two sections, and the microbubble generating component is further provided with a transition section connecting adjacent two sections of the compression section.

[0010] In one embodiment, the pore wall of the water passing hole is tangent to the cavity wall of the water outlet cavity, so that the fluid flowing into the water outlet cavity from the water passing hole can rotate circumferentially along the water outlet cavity to form a swirling flow.

[0011] In one embodiment, the nozzle assembly includes a nozzle base and a nozzle cap. The nozzle cap and the nozzle base enclose to form the water outlet cavity. The spray holes are arranged on the nozzle cap, the water passing holes are arranged on the nozzle base, and the nozzle base is further provided with a diversion channel which communicates the water outlet with the water passing holes.

[0012] In one embodiment, the nozzle assembly includes a nozzle frame and a nozzle cap. The nozzle cap is sleeved on one end of the nozzle frame. The water outlet cavity is formed by enclosing between the end face of the nozzle frame and the end face of the nozzle cap. The spray holes are arranged on the nozzle cap, the water passing holes are arranged on the nozzle frame, and the nozzle frame is further provided with a water inlet channel. A water passing gap is formed between the peripheral wall of the nozzle frame and the peripheral wall of the nozzle cap. The water outlet, the water inlet channel, the water passing gap, the water passing holes, the water outlet cavity and the spray holes are communicated in sequence.

[0013] In one embodiment, at least two water guiding holes are arranged on the peripheral wall of the nozzle frame at circumferentially spaced intervals, and the water inlet channel communicates with the water passing gap through the water guiding holes.

[0014] The present utility model further provides an intelligent toilet, including the microbubble generating device as described above;

[0015] A toilet body, the top of the toilet body is provided with an upward opening;

[0016] A flushing device, the flushing device includes a control valve, a water inlet pipeline and a flushing pipeline. The water inlet pipeline is used for connecting to a water source. The control valve is arranged between the water inlet pipeline and the flushing pipeline. The microbubble generating device is arranged on the flushing pipeline;

[0017] A water power device, the water power device is arranged on the water inlet pipeline to drive the water flow to flow from the water inlet pipeline towards the flushing pipeline.

[0018] Wherein, the specific structure of the microbubble generating device refers to the above embodiments. Since the microbubble generating device adopts all the technical solutions of all the above embodiments, it has at least all the beneficial effects brought by the technical solutions of the above embodiments, and will not be elaborated herein one by one.

[0019] In one embodiment, the intelligent toilet further includes a cleaner adding device, and the cleaner adding device is arranged on the downstream flow path of the control valve for providing a cleaner to the flushing pipeline or the microbubble generating device.

[0020] In one embodiment, the cleaning agent adding device is connected to the pipeline between the outlet of the control valve and the inlet of the microbubble generating assembly.

[0021] In one embodiment, the cleaning agent adding device is connected to the pipeline between the outlet of the microbubble generating assembly and the inlet of the spray head assembly.

[0022] In one embodiment, the cleaning agent adding device is connected to the spray head assembly.

[0023] In one embodiment, the flushing device further includes a human body cleaning pipeline. The water inlet pipeline is connected to the human body cleaning pipeline via the control valve. The control valve is used to control the water inlet pipeline to selectively communicate with at least one of the flushing pipeline and the human body cleaning pipeline.

[0024] The technical solution of the present utility model discloses a microbubble generating device. The key point of the solution lies in designing a compression section and an expansion section, and utilizing the Venturi effect to effectively improve the generation efficiency of microbubbles. The compression section reduces the flow area, which promotes the increase of flow velocity and the decrease of pressure, facilitating gas dissolution and the formation of microbubbles. Subsequently, in the expansion section, the flow velocity slows down and the pressure recovers, promoting the precipitation of dissolved gas to form microbubbles. The addition of the turbulence generating part further increases the turbulence degree of the fluid and enhances the generation and distribution uniformity of microbubbles. The swirl design of the water outlet cavity in the water spraying assembly, where the water passing holes do not intersect with the central axis of the water outlet cavity, promotes the formation of a swirl flow of water, increases the kinetic energy of the water flow, contributes to the stability of microbubbles and increases the spraying range. The split design of the spray head base and the spray head cover, as well as the combination of the spray head frame and the spray head cap, provide better assembly flexibility and sealing performance, ensuring the stability and high efficiency of microbubbles during the spraying process. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on the structures shown in these drawings.

[0026] Figure 1 It is a schematic structural diagram of an embodiment of the intelligent toilet provided by the present utility model;

[0027] Figure 2 It is a schematic structural diagram of the water inlet pipeline provided by the present utility model;

[0028] Figure 3 It is a schematic diagram of the principle of the intelligent toilet provided by the present utility model;

[0029] Figure 4 Schematic structural diagram of an embodiment of the microbubble generating device provided by the present utility model;

[0030] Figure 5 is Figure 4 cross-sectional schematic diagram;

[0031] Figure 6 Schematic structural diagram of another embodiment of the microbubble generating device provided by the present utility model;

[0032] Figure 7 is Figure 6 cross-sectional schematic diagram A - A.

[0033] Figure 8 Schematic structural diagram of an embodiment of the nozzle assembly provided by the present utility model;

[0034] Figure 9 is Figure 8 top view schematic diagram;

[0035] Figure 10 is Figure 9 cross-sectional schematic diagram B - B;

[0036] Figure 11 is Figure 8 left view schematic diagram;

[0037] Figure 12 is Figure 11 cross-sectional schematic diagram C - C;

[0038] Figure 13 Schematic structural diagram of yet another embodiment of the nozzle assembly provided by the present utility model;

[0039] Figure 14 is Figure 13 cross-sectional schematic diagram;

[0040] Figure 15 is Figure 13 top view schematic diagram;

[0041] Figure 16 is Figure 13 exploded schematic diagram;

[0042] Figure 17 is Figure 13 partial structural schematic diagram;

[0043] Figure 18 is Figure 17 top view schematic diagram.

[0044] Explanation of the reference numerals in the drawings:

[0045] 100, Microbubble generating device; 200, Toilet body; 300, Flushing device; 310, Control valve; 320, Water inlet pipeline; 330, Flushing pipeline; 340, Body cleaning pipeline; 400, Hydrodynamic device;

[0046] 10, Microbubble generating component; 11, Water inlet; 12, Water outlet; 13, Compression part; 14, Expansion part; 15, Nozzle; 16, Turbulence part; 161, Flow through hole; 17, Transition section; 20, Sprinkler head component; 21, Water outlet cavity; 22, Spray hole; 23, Water passing hole; 24, Sprinkler head base; 241, Flow guiding channel; 25, Sprinkler head cover; 26, Sprinkler head frame; 261, Water inlet channel; 262, Water guiding hole; 27, Sprinkler head cap; 28, First seal; 29, Second seal.

[0047] The realization, functional characteristics and advantages of the purpose of the present utility model will be further described in conjunction with the embodiments and with reference to the accompanying drawings. Specific embodiments

[0048] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts fall within the protection scope of the present utility model.

[0049] It should be noted that if there are directional indications (such as up, down, left, right, front, back...) involved in the embodiments of the present utility model, the directional indications are only used to explain the relative position relationship and movement conditions between components in a specific posture. If the specific posture changes, the directional indications will also change accordingly.

[0050] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present utility model, the descriptions of "first", "second", etc. are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one such feature. In addition, if "and / or" or "and / or" appears throughout the text, its meaning includes three parallel solutions. Taking "A and / or B" as an example, it includes solution A, solution B, or a solution where A and B are satisfied simultaneously. In addition, the technical solutions between various embodiments can be combined with each other, but it must be based on the fact that those of ordinary skill in the art can implement them. When the combination of technical solutions results in contradictions or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the protection scope required by the present utility model.

[0051] The present utility model provides a micro-bubble generating device and a smart toilet.

[0052] Referring to Figures 1 to 18 , in an embodiment of the present utility model, a micro-bubble generating device includes:

[0053] A micro-bubble generating assembly 10, the micro-bubble generating assembly 10 is provided with a water inlet 11, a water outlet 12, and a compression section 13 and an expansion section 14 which are arranged and communicated in the direction from the water inlet 11 to the water outlet 12. The flow-through area of the compression section 13 shows a decreasing trend from the water inlet 11 towards the expansion section 14, and the flow-through area of the expansion section 14 shows an increasing trend from the compression section 13 towards the water outlet 12; and

[0054] A nozzle assembly 20, the nozzle assembly 20 is communicated with the water outlet 12. The nozzle assembly 20 is provided with a water outlet cavity 21 and spray holes 22 communicated with the water outlet cavity 21. A water passing hole 23 communicating with the water outlet 12 is provided on the peripheral wall of the water outlet cavity 21, and the center line of the water passing hole 23 does not intersect with the central axis of the water outlet cavity 21, so that the fluid flowing in from the water passing hole 23 can swirl in the water outlet cavity 21 to the spray holes 22.

[0055] The micro-bubble generating device provided by the present utility model is used to generate micro-bubbles in the fluid flowing through the micro-bubble generating assembly 10. It should be noted that the fluid refers to an object that can flow. The fluid in the embodiment of the present utility model can be a liquid, for example, tap water, purified water, etc.; of course, the fluid can also be a mixture of gas and liquid; a small amount of solid impurities can also be mixed in the fluid, but the fluid in the embodiment of the present utility model does not include a fluid that is only gas. Micro-bubbles refer to tiny bubbles with a diameter of less than fifty micrometers (μm) when the bubbles are generated.

[0056] The micro-bubble generating device includes a micro-bubble generating assembly 10 and a nozzle assembly 20. The fluid can enter the compression section 13 from the water inlet 11, then flow through the expansion section 14, and finally flow into the nozzle assembly 20 through the water outlet 12. Among them, the micro-bubble generating assembly 10 forms a Venturi effect by designing the compression section 13 (the flow-through area gradually decreases) and the expansion section 14 (the flow-through area increases). In the compression section 13, the water flow velocity increases and the pressure decreases, which is beneficial to the precipitation of gas in the water; in the expansion section 14, the flow velocity decreases and the pressure recovers, promoting the formed gas to form stable micro-bubbles. This design can effectively increase the generation amount and stability of micro-bubbles, while reducing energy consumption and improving the overall efficiency.

[0057] Referring to Figures 1 to 18, in the embodiments of the present utility model, the cross-section of the water inlet 11 in the embodiments of the present utility model can be understood as the opening at one end of the compression section 13, and the cross-section of the water outlet 12 can be understood as the opening at one end of the expansion section 14.

[0058] As Figures 4 to 7 shown, during the process of the fluid passing through the microbubble generation assembly 10, first of all, when the fluid flows through the compression section 13 with a smaller area, it can be understood that when the water passage becomes smaller, the flow velocity of the fluid at the water outlet end of the compression section 13 is greater than that at the water inlet end of the compression section 13, and the pressure at the water outlet end of the compression section 13 is less than that at the water inlet end of the compression section 13. Then, during the flow of the fluid from the water inlet end of the compression section 13 to the water outlet end of the compression section 13, due to the decrease in pressure, microbubbles are precipitated in the fluid, so that the fluid flowing out at the water outlet end of the compression section 13 after passing through the bubble generation device can become a bubble liquid mixed with a large number of microbubbles. Then, from the water outlet end of the compression section 13, it flows to the expansion section 14 with a larger area. When the fluid flows through the expansion section 14 with a larger area, it can be understood that when the water passage becomes larger, the flow velocity of the fluid at the water outlet end of the expansion section 14 is less than that at the water inlet end of the expansion section 14. With the decrease in flow velocity, the decrease in flow velocity helps to reduce turbulence and noise, and the kinetic energy of the fluid decreases, and the static pressure energy increases accordingly. That is to say, the flow velocity first decreases in pressure due to the increase in velocity at the narrow part of the compression section 13, and then the pressure rises due to the decrease in velocity in the expansion section 14. This sudden increase in pressure helps to generate a stronger jet power when the fluid leaves the expansion section 14, thereby increasing the jet range. It can be understood that in some embodiments, the expansion section 14 may include multiple gradually expanding parts, and each stage allows the fluid velocity to gradually decrease and the pressure to gradually recover. This multi-stage expansion can more effectively convert kinetic energy into potential energy, thereby generating a farther range and a wider coverage area during spraying. In some embodiments, the compression section 13 is composed of multiple gradually narrowing paragraphs, and each step further accelerates the fluid and reduces the pressure. In some embodiments, the compression section 13 and the expansion section 14 are integrated and designed as a Venturi tube.

[0059] As Figures 4 to 7 shown, the fluid flowing out from the expansion section 14 enters the nozzle assembly 30. The center line of the water passing hole 23 in the water outlet cavity 21 in the nozzle assembly 30 does not intersect with the central axis of the water outlet cavity 21, so that the fluid entering the water outlet cavity 21 can generate a swirl. The swirl can increase the energy of the fluid, enabling it to cover a wider area during spraying. The fluid forms a more uniform distribution during spraying, avoiding the local concentrated impact that may be caused by a direct jet. This swirl helps to further refine and stabilize the microbubbles before spraying, while enhancing the uniformity and distribution range of the microbubbles. Moreover, through the swirl effect, the microbubbles are more uniform and dense when sprayed, improving the coverage area and application effect of the microbubbles.

[0060] Referring toFigures 4 to 7 In the embodiment of the present utility model, the microbubble generating assembly 10 includes a nozzle 15 and a flow disturbing part 16 arranged inside the nozzle 15. The inside of the nozzle 15 is configured with the compression section 13 and the expansion section 14. The flow disturbing part 16 is located between the compression section 13 and the expansion section 14, and the flow disturbing part 16 has a plurality of flow holes 161 that communicate the compression section 13 with the expansion section 14.

[0061] As Figure 6 shown, in this embodiment, the flow disturbing part 16 is provided. The existence of the flow disturbing part 16 can prompt the fluid to generate eddies or vortices in the expansion section 14, which helps the conversion of kinetic energy into pressure energy, so as to achieve a higher pressure recovery at the end of the expansion section 14. Moreover, when the fluid passes through the expansion section 14, the flow disturbing part 16 can prevent the occurrence of cavitation, that is, prevent the formation of bubbles in the fluid due to a sudden drop in pressure, which is very important for protecting downstream equipment in some applications, thereby improving the user experience. And, the eddies or vortices caused by the flow disturbing part 14 can enhance the rotational momentum of the fluid during spraying, improving the spraying efficiency and coverage. It can be understood that the flow disturbing part 16 can be a series of parallel raised stripes on the inner wall of the expansion section 14, which can induce the fluid to generate transverse eddies. The flow disturbing part 16 can also be a spiral flow disturbing sheet, and when the fluid passes through, it will be forced to move along a spiral path, forming a strong swirl. The flow disturbing part 16 can also use a mesh structure, and when the fluid passes through the mesh holes, a complex flow pattern will be generated, increasing the interaction between fluids. The flow disturbing part 16 can also be randomly distributed particles or protrusions of different sizes on the inner wall of the expansion section 14, which can produce an irregular flow disturbing effect, contributing to the uniform mixing of the fluid.

[0062] Referring to Figures 4 to 7 In the embodiment of the present utility model, the flow disturbing part 16 has at least one rib, and the rib extends along the radial or axial direction of the nozzle 15. The flow hole is formed between the rib and the inner wall of the nozzle 15.

[0063] The existence of the radial or axial ribs can promote the conversion of kinetic energy into pressure energy by changing the flow path of the fluid, especially in the expansion section 14, which helps the effective recovery of the fluid pressure. The radial or axial ribs can destroy the original laminar flow state of the fluid, prompting the formation of eddies inside the fluid, thereby enhancing the mixing effect of the fluid and making the distribution of the fluid more uniform before spraying. Specifically, it can be understood that this kind of design of radial ribs can effectively break the straight flow of the fluid by setting a radially extending structure on the inner wall of the expansion section 14, inducing the fluid to form complex eddies and enhancing the mixing and energy conversion of the fluid. The longitudinal ribs, that is, the flow disturbing ribs extending longitudinally along the inner wall of the expansion section 14, are to set obstacles in the fluid flow direction, prompting the fluid to form a flow around when passing through the flow disturbing ribs, generating transverse eddies, which also contributes to the uniformization and energy conversion of the fluid.

[0064] Referring to Figures 4 to 7 , in the embodiment of the present utility model, at least two compression sections 13 are provided, and the microbubble generating assembly 10 is further provided with a transition section 17 that communicates adjacent two compression sections 13.

[0065] The microbubble generating device includes a plurality of compression sections (at least two), and these compression sections can compress the fluid step by step. Among them, it is used to connect adjacent compression sections to ensure a smooth transition of the fluid between different compression sections. Moreover, by adjusting the pressure of each compression section, the size of the microbubbles can be precisely controlled.

[0066] Referring to Figures 1 to 18 , in the embodiment of the present utility model, the pore wall of the water passing hole 23 is tangent to the cavity wall of the water outlet cavity 21, so that the fluid flowing in from the water passing hole 23 can rotate along the circumferential direction of the water outlet cavity 21 to form a swirl flow.

[0067] The design of the water passing hole 23 makes its pore wall tangent to the cavity wall of the water outlet cavity 21. Such a geometric structure ensures that the fluid flowing out from the water passing hole 23 can directly form a swirl flow along the circumferential direction of the water outlet cavity 32. The formation of the swirl flow is based on Bernoulli's principle, that is, in a fluid, the pressure is lower where the flow rate is faster. When the fluid flows in a rotational manner, the pressure in the central region will decrease, which is conducive to the diffusion of gas from the high-pressure region (outside) to the low-pressure region (vortex center), thereby promoting the formation of microbubbles. By utilizing the microbubble effect formed by the swirl flow naturally, the structure of the entire microbubble generating system can be simplified.

[0068] Referring to Figures 6 to 12 , the nozzle assembly 20 includes a nozzle base 24 and a nozzle cap 25. The nozzle cap 25 and the nozzle base 24 enclose to form the water outlet cavity 21. The spray holes 22 are provided on the nozzle cap 25, the water passing holes 22 are provided on the nozzle base 24, and the nozzle base 24 is further provided with a diversion channel 241 that communicates the water outlet 12 with the water passing holes 22.

[0069] As Figures 6 to 12As shown, the fluid then enters the nozzle assembly 20 and passes through the water passage holes 23 on the nozzle base 24 from the diversion channel 241. At this time, the water passage holes 23 are tangentially arranged to guide the fluid to enter the water outlet cavity 21 formed by the nozzle base 24 tangentially. Inside the water outlet cavity 21, the fluid is forced to advance along a spiral path, forming a strong swirl. In the water outlet cavity 21, the rotational momentum of the fluid increases, and the kinetic energy is further converted into rotational momentum until the fluid reaches the nozzle holes 22. At the nozzle holes 22, the rotational momentum of the fluid is converted into jet power, forming a swirling jet with a certain angle and range. Finally, the fluid with microbubbles is ejected in the form of a swirl. Due to the characteristics of the swirl, the ejected fluid has a wider coverage range and a more uniform distribution. In this embodiment, the split nozzle assembly design, that is, separating the nozzle cap 25 from the nozzle base 24, makes the assembly and maintenance of the nozzle assembly 20 more convenient. If the water passage holes 23 or the nozzle cap 25 are damaged, they can be replaced separately without replacing the entire nozzle assembly, reducing the maintenance cost. The tangential arrangement of the water passage holes 23 in combination with the water outlet cavity 21 can efficiently guide the fluid to form a swirl. This swirl not only increases the rotational momentum of the fluid but also optimizes the energy utilization, making the ejected fluid have a wider coverage range and a more uniform jetting effect.

[0070] The nozzle assembly 20 further includes a first seal 28, and the first seal 28 is located between the end face of the nozzle base 24 and the end face of the nozzle cap 25.

[0071] As Figures 6 to 12 shown, in this embodiment, the first seal 28 is usually made of rubber, silicone or other elastic sealing materials and is placed between the end faces of the nozzle base 24 and the nozzle cap 25. When the nozzle cap 25 is tightened onto the nozzle base 24, the first seal 28 is squeezed and deformed to fill the gap between the two components, thus forming an effective sealing layer. The elastic deformation of the first seal 28 can adapt to manufacturing tolerances and surface unevenness, ensuring that there is no leakage inside the nozzle assembly 20 even under the action of high-pressure fluid, and guaranteeing the overall performance and service life of the nozzle assembly.

[0072] The nozzle base 24 and the nozzle cap 25 are threadedly connected.

[0073] Threaded connection is a common mechanical fixing method. By machining internal and external threads on the contact surfaces of the nozzle base 24 and the nozzle cap 25, a reliable connection between the two is achieved. When the nozzle cap 25 is screwed into or out of the nozzle base 24, the inclined surfaces of the threads engage with each other, generating an axial thrust that presses the nozzle cap 25 tightly against the nozzle base 24, ensuring the tight fit of the assembly.

[0074] The threaded connection also provides a convenient assembly and disassembly mechanism, facilitating the maintenance, cleaning, or replacement of parts of the nozzle assembly 20. In addition, the self-locking property of the thread prevents loosening caused by vibration to a certain extent, improving the reliability of the nozzle assembly 20.

[0075] The first seal 28 and the threaded connection together ensure the sealing and mechanical stability of the nozzle assembly 20.

[0076] Referring to Figures 13 to 18 , in the embodiment of the present utility model, the nozzle assembly 20 includes a nozzle holder 26 and a nozzle cap 27. The nozzle cap 27 is sleeved on one end of the nozzle holder 26. An outlet water chamber 21 is formed by enclosing between the end face of the nozzle holder 26 and the end face of the nozzle cap 27. The spray holes 22 are provided on the nozzle cap 27, the water passing holes 23 are provided on the nozzle holder 26. The nozzle holder 26 is further provided with a water inlet channel 261. A water passing gap is formed between the peripheral wall of the nozzle holder 26 and the peripheral wall of the nozzle cap 27. The water outlet 12, the water inlet channel 261, the water passing gap, the water passing holes 23, the outlet water chamber 21, and the spray holes 22 are connected in sequence.

[0077] As Figures 13 to 18 shown, the fluid enters the outlet water chamber 21 inside the nozzle holder 26 through the water inlet. The outlet water chamber 21 penetrates through the two end faces of the nozzle holder 26 to ensure the smooth passage of the fluid. In this embodiment, the process holes 23 are in the shape of spiral guide grooves, and the cross-section of the spiral guide grooves is rectangular. Such a design helps the fluid to form a stable swirl. At the same time, the rectangular cross-section can provide a larger surface area contact compared with the circular cross-section, which is beneficial to energy conversion and the improvement of the swirl intensity. Therefore, the water passing holes 23 near the end face of the nozzle cap 27 guide the fluid into a spiral path. The nozzle cap 27 is sleeved outside the nozzle holder 26, and the position of the nozzle holder 26 can be fixed by threaded connection to ensure the stability of the nozzle assembly 20 and the precise alignment of the spray holes 22. The spray holes 22 are provided on the nozzle cap 27, and their positions and sizes determine the direction and spraying range of the sprayed fluid. By adjusting the position of the nozzle cap 27, the relative positions of the spray holes 22 and the water passing holes 23 can be indirectly changed, thereby affecting the spraying effect and realizing the fine adjustment of the spraying angle and range.

[0078] Referring to Figures 13 to 18 , in the embodiment of the present utility model, at least two water guiding holes 262 are arranged at intervals along the circumferential direction on the peripheral wall of the nozzle holder 26. The water inlet channel 261 is communicated with the water passing gap through the water guiding holes 262.

[0079] When water flows through the micro-bubble generating component 10 and enters the water outlet cavity 21 of the nozzle component 20, a certain pressure will be formed. By opening water guiding holes 262 on both sides of the nozzle holder 26, this part of the water flow can pass through these holes to form lateral water flow branches. The water coming out of the water guiding holes 262 will flow along the inner wall of the nozzle holder 26 and the outer wall of the nozzle cap 27. The purpose is to further disperse the water flow so that it can cover a larger area, and at the same time provide sufficient water volume for the next water passing holes 23. Moreover, by restricting the cross-sectional area of the water flow, the water passing holes 23 can increase the water flow speed, thereby increasing the pressure and jet force when spraying out from the spray holes 22. Furthermore, by designing the size and position of the water guiding holes 262, the water flow speed and direction can be adjusted, thereby affecting the overall water flow distribution and pressure distribution of the nozzle. Therefore, by setting the water guiding holes 262 on both sides of the nozzle holder 26, the pressure of the water flow in the lateral direction can be balanced, ensuring the stability of the water flow direction sprayed out from the nozzle and improving the linearity and coverage area of the spraying.

[0080] The nozzle holder 26 and the nozzle cap 27 are connected by threads.

[0081] Threaded connection provides the functions of fastening and positioning. By rotating the nozzle cap 27, it moves along the threaded axis of the nozzle holder 26 until the required fastening degree is reached. The self-locking characteristic of the thread ensures the stability of the connection, and can maintain the tightness of the connection even in an environment of vibration or pressure change. The threaded connection of the nozzle cap 27 is convenient for disassembly and installation, which not only simplifies the maintenance process of the nozzle component 20, but also allows users to adjust the position of the spray holes 21 according to needs to adapt to different spraying requirements. The nozzle cap 27 is connected to the nozzle holder 26 by threads, which can provide high-precision position adjustment and firm fixing effect, ensure the accurate alignment of the spray holes 22, and improve the stability and repeatability of spraying.

[0082] A second seal 29 is used for sealing at the sealing surface between the nozzle holder 26 and the nozzle cap 27, and the second seal 29 is arranged adjacent to the water guiding holes 262.

[0083] The second seal 29 is usually made of rubber, silicone or other elastic sealing materials. The second seal 29 (usually an O-ring, gasket or other elastic sealing materials) is placed between the sealing surfaces of the nozzle holder 26 and the nozzle cap 27. When the threaded connection is tightened, the second seal 26 is compressed, filling the tiny gaps between the two components and preventing fluid from leaking through these gaps. The second seal 26 is arranged adjacent to the water guiding holes 262, which means it is directly located near the fluid path, can effectively block the leakage of fluid along the outer wall of the nozzle component 20, ensure that the fluid can only be discharged through the predetermined spray holes 22, and improve the overall sealing performance of the system.

[0084] Refer to Figures 1 to 18, in the embodiment of the present utility model, there is also provided a smart toilet, which includes the microbubble generating device 100 described above;

[0085] a toilet body 200, the top of the toilet body 200 is provided with an upward opening;

[0086] a flushing device 300, the flushing device 300 includes a control valve 310, a water inlet pipeline 320 and a flushing pipeline 330, the water inlet pipeline 320 is used for connecting to a water source, the control valve 310 is arranged between the water inlet pipeline 320 and the flushing pipeline 330, and the microbubble generating device 100 is arranged in the flushing pipeline 330;

[0087] a hydrodynamic device 400, the hydrodynamic device 400 is arranged in the water inlet pipeline 320 to drive the water flow to flow from the water inlet pipeline 320 towards the flushing pipeline 330.

[0088] The present utility model also proposes a smart toilet, the smart toilet includes the above-mentioned microbubble generating device, and the specific structure of the microbubble generating device refers to the above-mentioned embodiment. Since the microbubble generating device adopts all the technical solutions of the above all embodiments, it has at least all the beneficial effects brought by the technical solutions of the above embodiments, and will not be elaborated herein one by one.

[0089] Please refer to Figures 1 to 3 , in the embodiment of the present utility model, the smart toilet includes a microbubble generating device 100, a toilet body 200 and a flushing device 300, the top of the toilet body 200 is provided with an upward opening; the flushing device 300 includes a control valve 310, a water inlet pipeline 320 and a flushing pipeline 330, and the water inlet pipeline 320 is used for connecting to a water source. Wherein the water source can be a water tank, and the water tank can be arranged on one side of the toilet body 200; or the water inlet pipeline 320 can be directly connected to a water pipe. The water tank can be a container with a certain volume, so as to store a liquid fluid, and when it is necessary to flush the toilet body 200, the liquid fluid is used. The water tank can be in a regular or irregular shape, and the material can be ceramic or metal. The water tank can be connected to a water supply pipe, so that the water tank can obtain tap water to store it. When it is necessary to flush the toilet body 200, the toilet body 200 can obtain a large flow of tap water instantly, thereby ensuring the cleaning effect. Further optimized, a control valve 310 is also installed on the pipeline connecting the water tank and the water supply pipe, and the control valve 310 is used to control the flow and cut-off of the tap water in the water supply pipe, so as to control the volume of the tap water flowing into the water tank to prevent the tap water from overflowing from the water tank and causing waste. Please refer to Figure 2, the intelligent toilet further includes a hydrodynamic device 400 disposed in the water inlet pipeline 320 to drive the water in the water inlet pipeline 320 to flow out, so that the flushing pipeline 330 can obtain a large flow of water in a short time, thereby ensuring the flushing effect of the flushing component. The first hydrodynamic device 410 can be a water pump. The hydrodynamic device 400 can be a water pump.

[0090] In this embodiment, the control valve 310 is disposed on the water inlet pipeline 320 to control the switching of the water flow. The control valve 310 can control the connection or cut-off of the water inlet pipeline 320, and can also control the flow rate and velocity of the water passing through the water inlet pipeline 320. It can be understood that the control valve 310, the water inlet pipeline 320, the microbubble generating assembly 10, the nozzle assembly 20, and the flushing pipeline 330 can form a water path for spraying microbubble water. Preferably, the control valve 310 is a check valve. When the intelligent toilet starts to work and receives the signal of the control system to work, the control valve 310 opens, and the external water enters the microbubble generating assembly 10 through the water inlet pipeline 320 under the pressure of tap water, and completes the microbubble formation process in the microbubble generating assembly 10, and then is sprayed onto the inner wall of the toilet body 200 through the nozzle assembly 20. After working for a certain time and covering the inner wall of the toilet body 200 with small water droplets of microbubble water, the control valve 310 receives the stop signal from the control system and stops supplying water, completing the spraying process. When further optimized, the microbubble generating assembly 10 can be integrated with the control valve 310 or the nozzle assembly 20, or the microbubble generating assembly 10 can be connected to the nozzle assembly 20 through the water inlet pipeline 320. It can be understood that the water inlet pipeline 320 can be a flexible hose or a metal pipe.

[0091] Please refer to Figures 1 to 3 , in the embodiment of the present invention, the intelligent toilet further includes a cleaner adding device disposed on the downstream flow path of the control valve 310 for supplying a cleaner to the flushing pipeline or the microbubble generating device 100.

[0092] Please refer to Figures 1 to 3 , in the embodiment of the present invention, the cleaner adding device is connected to the pipeline between the outlet of the control valve 310 and the inlet of the microbubble generating assembly 10.

[0093] It can be understood that the cleaner adding device can be located at the inlet of the microbubble generating assembly 10. The function of the cleaner adding device in this position is to mix the cleaning agent or disinfectant into the water before the water enters the microbubble generating assembly 10. This ensures that the subsequent generated microbubbles can be fully mixed with the cleaner, thereby improving the adsorption and decomposition ability of the microbubbles to pollutants.

[0094] Please refer to Figures 1 to 3, in the embodiment of the present utility model, the cleaning agent adding device is connected to the pipeline between the outlet of the microbubble generating assembly 10 and the inlet of the nozzle assembly 20.

[0095] It can be understood that the cleaning agent adding device can be located between the outlet of the microbubble generating assembly 10 and the inlet of the nozzle assembly 20. In this position, the function of the cleaning addition part 30 is to add a cleaning agent or a disinfectant into the water flow already containing microbubbles. This way can make the cleaning agent further combine with the microbubbles, improving its adhesion ability and cleaning efficiency on the target surface.

[0096] Please refer to Figures 1 to 3 , in the embodiment of the present utility model, the cleaning agent adding device is connected to the nozzle assembly 20.

[0097] It can be understood that the cleaning agent adding device can be located at the outlet of the nozzle assembly 20. The cleaning addition part 30 is arranged at the outlet of the nozzle assembly 20, then it will add a cleaning agent or a disinfectant at the last stage before spraying. This design may be more suitable for applications that require precise control of the addition dosage or the spraying point, because the addition of the additive is closer to the actual action point, reducing the dilution or reaction that may be caused by premature mixing.

[0098] Please refer to Figure 2 , in the embodiment of the present utility model, the flushing device 300 further includes a human body cleaning pipeline 340. The water inlet pipeline 320 is connected to the human body cleaning pipeline 340 via the control valve 310. The control valve 310 is used to control the water inlet pipeline 320 to selectively communicate with at least one of the flushing pipeline and the human body cleaning pipeline 340.

[0099] Please refer to Figure 2 , in the embodiment of the present utility model, the intelligent toilet further includes a human body cleaning pipeline 340. Among them, the human body cleaning pipeline 340 can be hip cleaning spraying and / or vulva cleaning spraying and / or self-cleaning water spraying. Further optimized, preferably, the control valve 310 in this embodiment selects a two-way one-way valve.

[0100] The intelligent toilet further includes a water heating device and a water flow distribution device. The water adding device and the water flow distribution device are installed on the water inlet pipeline 320. The pipeline where the water heating device is connected to the water inlet pipeline 320 can also be separately installed with a control valve 310. At this time, the control valve 310 in this embodiment selects a one-way valve. It can also be a control valve for controlling the microbubble generating device 100. At this time, the control valve 310 in this embodiment selects a two-way control valve.

[0101] The above are only exemplary embodiments of the present utility model, and do not limit the patent scope of the present utility model accordingly. Any equivalent structural transformation made under the technical concept of the present utility model by using the content of the specification and drawings of the present utility model, or any direct / indirect application in other related technical fields, is included in the patent protection scope of the present utility model.

Claims

1. A microbubble generating device, characterized in that: include: A microbubble generating component, wherein the microbubble generating component is provided with a water inlet, a water outlet, and a compression section and an expansion section arranged and connected from the water inlet toward the water outlet, wherein the flow area of ​​the compression section decreases from the water inlet toward the expansion section, and the flow area of ​​the expansion section increases from the compression section toward the water outlet; and A nozzle assembly is connected to the water outlet, the nozzle assembly is provided with a water outlet chamber and a spray hole connected to the water outlet chamber, the peripheral wall of the water outlet chamber is provided with a water through hole connected to the water outlet, the center line of the water through hole does not intersect with the center axis of the water outlet chamber, so that the fluid flowing in from the water through hole can swirl in the water outlet chamber to the spray hole.

2. The microbubble generating device according to claim 1, characterized in that: The microbubble generating assembly includes a nozzle and a spoiler arranged in the nozzle, the compression section and the expansion section are constructed inside the nozzle, the spoiler is located between the compression section and the expansion section, and the spoiler has a plurality of flow holes connecting the compression section with the expansion section.

3. The microbubble generating device according to claim 2, characterized in that: The spoiler has at least one rib, and the rib is arranged to extend in the radial direction or the axial direction of the nozzle, and the flow hole is formed between the rib and the inner wall of the nozzle.

4. The microbubble generating device according to claim 1, characterized in that: The compression section is provided with at least two sections, and the microbubble generating assembly is further provided with a transition section connecting two adjacent compression sections.

5. The microbubble generating device according to claim 4, characterized in that: The hole wall of the water through hole is tangent to the cavity wall of the water outlet cavity, so that the fluid flowing in through the water through hole can rotate along the circumference of the water outlet cavity to form a vortex.

6. The microbubble generating device according to any one of claims 1 to 5, characterized in that: The nozzle assembly includes a nozzle base and a nozzle cover, the nozzle cover and the nozzle base enclose the water outlet cavity, the spray hole is arranged on the nozzle cover, the water hole is arranged on the nozzle base, and the nozzle base is also provided with a guide channel, which connects the water outlet with the water hole.

7. The microbubble generating device according to any one of claims 1 to 5, characterized in that: The nozzle assembly includes a nozzle frame and a nozzle cap, the nozzle cap is sleeved on one end of the nozzle frame, the end surface of the nozzle frame and the end surface of the nozzle cap enclose the water outlet chamber, the spray hole is provided on the nozzle cap, the water flow hole is provided on the nozzle frame, the nozzle frame is also provided with a water inlet channel, a water flow gap is formed between the peripheral wall of the nozzle frame and the peripheral wall of the nozzle cap, the water outlet, the water inlet channel, the water flow gap, the water flow hole, the water outlet chamber and the nozzle hole are connected in sequence.

8. The microbubble generating device according to claim 7, characterized in that: The peripheral wall of the nozzle frame is provided with at least two water guide holes which are arranged at intervals along the circumferential direction, and the water inlet channel is communicated with the water flow gap via the water guide holes.

9. A smart toilet, characterized in that: include: The microbubble generating device according to any one of claims 1 to 8; A toilet body, wherein the top of the toilet body is provided with an upward opening; A flushing device, the flushing device comprising a control valve, a water inlet pipeline and a flushing pipeline, the water inlet pipeline is used to connect to a water source, the control valve is arranged between the water inlet pipeline and the flushing pipeline, and the microbubble generating device is arranged in the flushing pipeline; A water power device is arranged in the water inlet pipeline to drive water to flow from the water inlet pipeline toward the flushing pipeline.

10. The intelligent toilet according to claim 9, characterized in that: The smart toilet also includes a detergent adding device, which is arranged on the downstream flow path of the control valve and is used to provide detergent to the flushing pipeline or the micro-bubble generating device.

11. The intelligent toilet according to claim 10, characterized in that: The cleaning agent adding device is connected to the pipeline between the outlet of the control valve and the inlet of the micro-bubble generating component; or The cleaning agent adding device is connected to the pipeline between the outlet of the micro-bubble generating component and the inlet of the nozzle component; or The cleaning agent adding device is connected to the spray head assembly.

12. The intelligent toilet according to any one of claims 9 to 11, characterized in that: The flushing device also includes a human body washing pipeline, the water inlet pipeline is connected to the human body washing pipeline via the control valve, and the control valve is used to control the water inlet pipeline to selectively connect to at least one of the flushing pipeline and the human body washing pipeline.

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