A bubble machine capable of switching output between foam water and clear water

Abstract

The utility model provides a kind of bubble machine that can switch output foam water and water, it is related to bubble machine technical field.Bubble machine includes shell assembly, peristaltic pump, air pump, control assembly and liquid outlet assembly.Shell assembly is provided with liquid storage tank.Peristaltic pump pipeline is communicated in liquid storage tank.Control assembly includes switch and switching valve.Switching valve is provided with valve water inlet, first valve water outlet and second valve water outlet, and valve water inlet can switch communication first valve water outlet or second valve water outlet.Liquid outlet assembly includes liquid outlet shell, mixed liquid cover and foamer.Liquid outlet shell is provided with the liquid outlet of bubbling flow channel and water flow channel.Pipeline is communicated in second valve water outlet in water flow channel.Peristaltic pump and water inlet flow channel are connected in liquid inlet flow channel pipeline in mixed liquid cover.Water inlet flow channel pipeline is communicated in first valve water outlet and bubbling flow channel.Liquid inlet flow channel pipeline is connected to peristaltic pump and water inlet flow channel.Liquid inlet flow channel is vertically communicated water inlet flow channel.Water inlet flow channel is spirally surrounded by air inlet flow channel.

Description

Technical Field

[0001] This utility model relates to the field of bubble machine technology, and more specifically, to a bubble machine that can switch between outputting foamy water and clean water. Background Technology

[0002] In the bathroom cleaning industry, foaming water is widely used due to its excellent cleaning effect and user experience. Users expect devices to generate fine, stable foam liquid while allowing for flexible switching between foam and clean water. Especially during bathing or cleaning, the uniformity and temperature of the foam directly affect comfort—fine foam enhances cleaning power and reduces detergent residue, while warm water foam avoids discomfort. These demands place higher requirements on the mixing efficiency of bubbles and liquid, necessitating solutions to problems such as coarse foam and easy dissipation caused by insufficient mixing.

[0003] Existing technologies typically employ the Venturi effect or mechanical stirring to achieve gas-liquid mixing. For example, a liquid detergent is drawn in using the negative pressure of water flow through a suction device and then mixed with compressed air in a foamer.

[0004] This design still has significant drawbacks: insufficient contact time between the airflow and liquid flow results in incomplete gas dissolution in the liquid, leading to foams containing large bubbles and exhibiting poor stability. The multi-layered foaming mesh design of mechanical foamers may hinder the flow of the mixed fluid, and insufficient local turbulence causes uneven gas-liquid distribution. Furthermore, the lack of a dynamic adjustment mechanism within the mixing chamber makes it unable to adapt to different water pressures and flow rates, further exacerbating the problem of incomplete mixing.

[0005] Insufficient gas-liquid mixing efficiency significantly reduces foam quality. Coarse foam is prone to breakage and cannot adhere to the skin surface for effective cleaning. Inadequate heat exchange during the mixing of hot and cold liquids with gas results in foam temperatures lower than the inlet water temperature, affecting bathing comfort. While components such as one-way valves in the mixing structure prevent backflow, they increase flow resistance and may weaken the synergistic effect of the air and liquid pumps. These issues limit the practicality of foam supply devices and hinder improvements in user experience. Utility Model Content

[0006] This invention provides a bubble machine that can switch between outputting foamy water and clean water, aiming to improve at least one of the above-mentioned technical problems.

[0007] To solve the above-mentioned technical problems, this utility model provides a bubble machine that can switch between outputting foamy water and clean water, which includes a housing assembly, a peristaltic pump, an air pump, a control assembly, and a liquid dispensing assembly.

[0008] The housing assembly is equipped with a liquid storage tank. The peristaltic pump pipeline is connected to the liquid storage tank.

[0009] The control component includes a switch and a switching valve. The switching valve is provided with a valve inlet, a first valve outlet, and a second valve outlet. The valve inlet can be switched to connect to either the first valve outlet or the second valve outlet. The switch is adapted to be triggered when the valve inlet is connected to the first valve outlet.

[0010] The liquid outlet assembly includes a liquid outlet shell having a foaming channel and a water passage, a mixing cap connected to the inlet of the foaming channel, and a foamer disposed in the foaming channel. The liquid outlet shell has a liquid outlet communicating with the foaming channel and the water passage. The water passage is connected to the outlet of the second valve.

[0011] The mixing cap is provided with a water inlet channel, a liquid inlet channel, and an air inlet channel. The water inlet channel is connected to the outlet of the first valve and the foaming channel. The liquid inlet channel is connected to the peristaltic pump and the water inlet channel. One end of the air inlet channel is connected to the air pump, and the other end is connected to the foaming channel and / or the water inlet channel.

[0012] The liquid inlet channel is vertically connected to the water inlet channel. The air inlet channel is constructed to spiral around the water inlet channel.

[0013] As a further optimization, the liquid outlet assembly also includes a guide member embedded in the water inlet channel. A liquid inlet gap is provided around the water inlet channel and the guide member to allow the washing liquid flowing into the water inlet channel to surround the outlet of the guide member.

[0014] As a further optimization, the first valve outlet, the water inlet channel, the flow guide, the foaming channel, and the liquid outlet are coaxially arranged.

[0015] As a further optimization, the first valve outlet, the water inlet channel, the foaming channel, and the liquid outlet are arranged coaxially.

[0016] As a further optimization, the water flow channel is constructed in an L-shape.

[0017] As a further optimization, the air intake channel is spirally provided with an air guide groove along the water intake direction of the water intake channel. The water intake channel extends into the air guide groove so that the air guide groove surrounds the water intake channel.

[0018] As a further optimization, the housing assembly includes an outer shell on which the liquid reservoir is disposed, and a bracket and a bottom shell joined to the outer shell. The peristaltic pump, the air pump, the switch, and the switching valve are disposed on the bracket.

[0019] As a further optimization, the housing assembly also includes a top cover adapted to cover the liquid storage tank.

[0020] As a further optimization, the number of air pumps is two. The two air pumps are connected in parallel via piping to the air intake channel.

[0021] As a further optimization, the foamer includes a plurality of foaming nets and pads arranged at intervals in sequence.

[0022] As a further optimization, the switch is a micro switch.

[0023] By adopting the above technical solution, the present invention can achieve the following technical effects:

[0024] The structural design of this bubble machine significantly improves the uniformity and stability of bubble-water mixing. The spiral-encircling inlet channel design extends the contact time between the airflow and water, allowing the gas to fully dissolve in the liquid, generating fine, high-density foam. The vertically connected liquid inlet channel, combined with the inlet gap of the guide component, ensures that the washing liquid evenly coats the water core, avoiding localized turbulent dead zones and thus reducing foam breakage and stratification. The dual-pump parallel structure enhances airflow supply, adapting to different water pressure conditions and effectively solving the problem of coarse foam caused by insufficient mixing in existing technologies.

[0025] Meanwhile, the device enables flexible switching between foamy water and clean water via a switching valve and microswitch, enhancing user convenience and comfort. The coaxial flow channel and L-shaped water passage optimize the fluid path and reduce flow resistance. Combined with a multi-layer foaming net, this further improves foam durability and temperature consistency. The overall compact and reliable structure ensures stable output of high-quality foam in bathing settings, enhancing practicality and user experience. Attached Figure Description

[0026] To more clearly illustrate the technical solutions of the specific embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained from these drawings without creative effort.

[0027] Figure 1 This is the first isometric view of the bubble machine.

[0028] Figure 2 This is the second isometric view of a bubble machine (with the outer shell hidden).

[0029] Figure 3 This is a third-axis view of a bubble machine (with the outer casing hidden).

[0030] Figure 4 This is the fourth axonometric view of a bubble machine (with the outer casing hidden).

[0031] Figure 5 This is an exploded view of a bubble machine.

[0032] Figure 6 This is a diagram of the water flow path for a bubble machine.

[0033] Figure 7 This is a diagram of the foam water flow in a bubble machine.

[0034] Figure 8 This is the first isometric view of the mixing cap.

[0035] Figure 9 This is the second isometric view of the mixing cap.

[0036] Figure 10 This is a half-section view of the liquid storage assembly.

[0037] The markings in the diagram are: 1-Shell assembly, 2-Peristaltic pump, 3-Air pump, 4-Switching valve, 5-Switch, 6-Bottom shell, 7-Bracket, 8-Top cover, 9-Outer shell, 10-Valve inlet, 11-Second valve outlet, 12-First valve outlet, 13-Inlet channel, 14-Inlet air channel, 16-Inlet liquid channel, 17-Air guide groove, 18-Outlet liquid, 19-Outlet water channel, 20-Outlet liquid shell, 21-Mixing cover, 22-Flow guide, 24-Fogging channel, 25-Fogger, 26-Padded block, 27-Fogging net. Detailed Implementation

[0038] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings.

[0039] In existing technologies, bathroom cleaning equipment generally suffers from low gas-liquid mixing efficiency. Traditional devices employ the Venturi effect or mechanical stirring, resulting in insufficient gas-liquid contact time, leading to foam containing large air bubbles that easily dissipate. When users need to switch between foam water and clean water, existing switching mechanisms pose a risk of cross-contamination in the flow channels, affecting output stability. For example, in a shower setting, insufficiently mixed cold foam can cause discomfort upon contact with the skin, and the layered structure of mechanical foamers can easily create flow obstruction, exacerbating uneven temperature distribution.

[0040] To address these issues, researchers observed a direct correlation between gas-liquid mixing efficiency and contact path length, leading them to consider extending the mixing time through innovative flow channel structures. Regarding the mixing mechanism, they discovered that orthogonal injection generates stronger turbulence, while spiral airflow creates a centrifugal mixing effect. These findings provide a theoretical basis for structural improvements.

[0041] Depend on Figures 1 to 10As shown in the figure, this utility model embodiment provides a bubble machine that can switch between outputting foamy water and clean water, which includes a housing assembly 1, a peristaltic pump 2, an air pump 3, a control assembly, and a liquid dispensing assembly.

[0042] The housing assembly 1 is provided with a liquid storage tank. A peristaltic pump 2 is connected to the liquid storage tank. The control assembly includes a switch 5 and a switching valve 4. The switching valve 4 is provided with a valve inlet 10, a first valve outlet 12, and a second valve outlet 11. The valve inlet 10 can be switched to connect to either the first valve outlet 12 or the second valve outlet 11. The switch 5 is adapted to be triggered when the valve inlet 10 is connected to the first valve outlet 12. The liquid dispensing assembly includes a liquid dispensing shell 20 provided with a foaming channel 24 and a water flow channel, a mixing cap 21 connected to the inlet of the foaming channel 24, and a foamer 25 disposed in the foaming channel 24. The liquid dispensing shell 20 is provided with a liquid outlet 18 connecting the foaming channel 24 and the water flow channel. The water flow channel is connected to the second valve outlet 11. The mixing cap 21 is provided with a water inlet channel 13, a liquid inlet channel 16, and an air inlet channel 14. The water inlet channel 13 is connected to the outlet 12 of the first valve and the foaming channel 24. The liquid inlet channel 16 is connected to the peristaltic pump 2 and the water inlet channel 13. One end of the air inlet channel 14 is connected to the air pump 3, and the other end is connected to the foaming channel 24 and / or the water inlet channel 13. The liquid inlet channel 16 is vertically connected to the water inlet channel 13. The air inlet channel 14 is constructed to spirally surround the water inlet channel 13.

[0043] The housing assembly 1 refers to the main structure that carries each functional module. Specifically, it can be implemented by combining a split-type housing 9 with a support 7. The liquid storage tank is used to independently store detergent, avoiding intersections with the clean water pipeline. The peristaltic pump 2 is a device that delivers liquid via a flexible hose, specifically implemented using a stepper motor-driven roller structure to achieve quantitative detergent supply. The spiral air intake channel 14 is a spiral gas channel surrounding the main water flow channel, specifically implemented by machining spiral grooves within the mixing cover 21, enhancing gas-liquid contact by extending the gas movement path. The vertically connected liquid inlet channel 16 is a liquid injection channel orthogonal to the main water flow direction, specifically implemented using a T-type pipe joint structure, utilizing shearing action to improve mixing uniformity. The physically isolated dual-channel system refers to a structure where the foaming channel 24 and the water flow channel are completely separated. Specifically, this can be achieved by setting up an independent chamber within the liquid outlet shell 20, ensuring no cross-contamination between the two modes.

[0044] Specifically, when switching valve 4 connects to the first valve outlet 12, water flows into the inlet channel 13 and mixes with the gas injected into the spiral inlet channel 14. Peristaltic pump 2 injects the washing liquid from the storage tank into the main water flow through the vertical inlet channel 16, and the orthogonal injection generates turbulence to enhance the initial mixing. As the gas-liquid mixture moves along the spiral path, it is subjected to centrifugal force, breaking the gas into microbubbles. After entering the foaming channel 24, the mixed fluid undergoes further bubble refinement through a multi-layer foaming net, ultimately forming stable foam that is output from the outlet 18. When switching valve 4 switches to the second valve outlet 11, water flows directly through the water channel to output clean water. At this time, switch 5 disconnects the power to air pump 3 and peristaltic pump 2. The swirling design of the spiral inlet channel 14 ensures that the gas is evenly distributed in the liquid, while the vertical inlet method avoids the laminar flow phenomenon of traditional parallel injection.

[0045] Compared to existing technologies, traditional Venturi mixers rely on fluid velocity to generate negative pressure, resulting in a significant decrease in mixing efficiency under low water pressure conditions. This solution combines active air supply with mechanical mixing to ensure stable mixing efficiency under varying water pressures. Existing switching devices often use a single valve body for control, which can easily lead to cross-contamination from residual liquid. This solution, however, eliminates residue issues through a completely isolated foaming channel 24 and water passage. The layered mesh structure of traditional foamers 25 is prone to accumulating impurities. This solution uses a combination of spaced-apart foaming meshes 27 and pads 26 in the foamer 25, reducing flow resistance while maintaining foaming performance.

[0046] Through the above technical solution, water and gas form a swirling mixture within the spiral channel, which, combined with the vertically injected washing liquid, generates multidirectional turbulence, increasing the gas-liquid contact area by approximately 2.3 times. The centrifugal effect of the spiral inlet channel 14 controls the bubble diameter within the range of 0.1-0.5 mm, improving bubble uniformity by approximately 65% ​​compared to traditional mixing methods. The physically isolated dual-channel design shortens the mode switching response time to less than 0.8 seconds, with no liquid residue. The orthogonal injection structure increases the washing liquid diffusion rate by approximately 40%, effectively preventing foam bursting caused by excessively high local concentrations.

[0047] This application further proposes that the liquid outlet assembly also includes a guide member 22 embedded in the water inlet channel 13. A liquid inlet gap is provided circumferentially between the water inlet channel 13 and the guide member 22, allowing the washing liquid flowing into the water inlet channel 16 to surround the outlet of the guide member 22. The guide member 22 is a cylindrical structure embedded inside the water inlet channel 13, specifically made of polytetrafluoroethylene (PTFE), with its outer wall forming an annular channel with the inner wall of the water inlet channel 13. This structure forces the washing liquid to be evenly distributed along the annular gap, avoiding concentration gradients caused by single-point injection.

[0048] The liquid inlet gap is an annular channel between the outer wall of the guide element 22 and the inner wall of the water inlet channel 13. Specifically, it can be formed by adjusting the dimensional difference between the outer diameter of the guide element 22 and the inner diameter of the water inlet channel 13. The circumferential continuity of this gap ensures that the washing liquid surrounds the water flow within a 360-degree range, achieving full circumferential mixing.

[0049] The guide member 22 extends axially within the water inlet channel 13, with its end extending to the mixing initiation region. When water flows through the central channel of the guide member 22, the washing liquid flows along the outer wall of the guide member 22 through the annular gap, forming a liquid film layer surrounding the water flow at the end of the guide member 22. The two fluids form a coaxial laminar flow in the mixing initiation region, achieving molecular-level diffusion through viscous shear. The axial length of the guide member 22 is configured to meet the requirements of laminar flow development, ensuring that the washing liquid coating layer achieves a stable flow state before mixing.

[0050] Compared to existing technologies, traditional mixing devices use a side-injection method for the washing liquid, resulting in fluid contact on only one side and a short mixing path. This solution utilizes a circumferentially enveloping structure formed by an annular gap, ensuring the washing liquid evenly covers the water flow surface, increasing the mixing contact area to more than three times that of existing technologies. Through this technical solution, this application solves the problem of insufficient mixing between the washing liquid and the water flow, and the improved mixing efficiency leads to a higher concentration of foam particle size distribution.

[0051] This application further proposes that the first valve outlet 12, the water inlet channel 13, the flow guide 22, the foaming channel 24 and the liquid outlet 18 are coaxially arranged.

[0052] The first valve outlet 12 is the outlet connecting the valve body and the inlet channel 13. It can be implemented using a cylindrical interface design, ensuring that water flows directly into the inlet channel 13 axially after exiting the valve body. The guide element 22 is a guiding structure embedded within the inlet channel 13, which can be implemented using an annular guide plate. Its outer wall forms an annular gap with the inner wall of the inlet channel 13 to evenly distribute the washing liquid. The foaming channel 24 is the channel for foaming the mixed fluid, which can be implemented using a straight cylindrical cavity structure. Its axis coincides with the inlet channel 13 to ensure consistent flow direction. The outlet 18 is the end opening for foam output, which can be implemented using a circular through-hole structure. Its position is aligned with the end of the foaming channel 24 to maintain linear fluid movement.

[0053] When water flows axially from the outlet 12 of the first valve into the inlet channel 13, the guide member 22 guides the washing liquid through an annular gap to form a circumferential coating layer. The coaxial arrangement of the inlet channel 13 and the guide member 22 maintains the water flow in a laminar state, avoiding turbulence caused by channel deflection. After the mixed fluid enters the foaming channel 24, it fully contacts the gas introduced by the spiral inlet channel 14 during its axial flow. The coaxial extension of the outlet 18 and the foaming channel 24 ensures that the mixed fluid maintains a consistent flow direction during foaming, reducing energy loss due to path deviation. The coaxial cooperation between the guide member 22 and the inlet channel 13 further optimizes the uniformity of the washing liquid coating the water flow, improving the gas-liquid mixing efficiency. Through the above technical solution, this application solves the problem of low mixing efficiency caused by fluid path deviation, maintains a consistent flow direction through the coaxial channel, and reduces energy loss. The coaxial arrangement of the guide member 22 and the channel optimizes the washing liquid coating effect and improves the uniformity of gas-liquid mixing.

[0054] This application further proposes that the water flow channel is constructed in an L-shape. An L-shape refers to a pipe section with a 90-degree bend in the water flow channel. Specifically, the elbow connector can be manufactured using injection molding. This bend creates a spatial isolation zone between the clean water output path and the foam generation system.

[0055] The right-angle bend in the L-shaped water flow channel adjusts the direction of clean water delivery to be perpendicular to the foam generation path. Spatial misalignment prevents clean water from flowing through the foamer's 25 area. Simultaneously, the centrifugal force generated at the bend causes residual air bubbles in the water flow to gather and separate towards the outside of the bend. The L-shaped water flow channel effectively blocks interference between the clean water and the foaming system, ensuring both foam generation quality and the purity of the output water.

[0056] This application further proposes that the air inlet channel 14 is spirally provided with an air guide groove 17 along the water inlet channel 13. The water inlet channel 13 extends into the air guide groove 17 so that the air guide groove 17 surrounds the water inlet channel 13. The air guide groove 17 refers to a spiral groove structure provided on the inner wall of the air inlet channel 14, which can be implemented by creating a spiral cavity in a plastic mold, used to guide the gas to form a swirling motion. The water inlet channel 13 extending into the air guide groove 17 means that the end part of the water flow channel is embedded in the surrounding space of the spiral air guide groove 17, which can be achieved by adjusting the axial length of the internal flow channel of the mixing cover 21, so that the water flow is fully enveloped by the spiral airflow during the flow process.

[0057] When water flows into the air guide channel 17 from the inlet channel 13, the gas output by the air pump 3 forms a rotating airflow along the spiral air guide channel 17. The spiral channel forces the gas to generate a tangential velocity component along the water flow direction, forming an annular air curtain around the water flow. The inlet channel 13, extending into the air guide channel 17, continuously scours the core area of ​​the water flow with the spiral airflow. The gas, through the channel wall, generates a shearing action with the water surface, causing the gas to break into microbubbles and penetrate into the water flow. The spiral path prolongs the contact time between the gas and liquid phases, allowing the gas to fully dissolve in the liquid and form a homogeneous mixed fluid. This application effectively prolongs the contact time between the gas and liquid phases, allowing the gas to fully dissolve in the liquid.

[0058] This application further proposes that the housing assembly 1 includes a housing 9 on which the liquid storage tank is disposed, and a bracket 7 and a bottom shell 6 engaged with the housing 9. The peristaltic pump 2, the air pump 3, the switch 5, and the switching valve 4 are disposed on the bracket 7. The housing assembly 1 also includes an upper cover 8 adapted to cover the liquid storage tank.

[0059] The outer casing 9 refers to the main structure that supports the liquid storage tank. It can be manufactured using injection molding. The internal liquid storage tank directly stores the washing liquid, reducing the need for external piping connections. The bracket 7 is a support structure used to fix functional components. It can be engaged with the outer casing 9 using snap-fit ​​or locating pins to form a unified mounting reference surface, achieving physical isolation between electrical components and the liquid flow path. The bottom shell 6 is a protective structure that encloses the bottom of the outer casing 9. It can be joined to the outer casing 9 using ultrasonic welding, and a sealing ring prevents liquid from seeping into the electrical area.

[0060] The outer casing 9 and the bracket 7 are quickly assembled via positioning slots. Mounting holes on the surface of the bracket 7 are used to fix the drive units of the peristaltic pump 2 and the air pump 3, respectively. The switch 5 and the switching valve 4 are fixed to the pre-set protrusions on the bracket 7 with screws. Reinforcing ribs on the inner side of the bottom shell 6 form multi-point contact support with the bottom of the bracket 7. The guide groove on the side wall of the outer casing 9 slides into contact with the protrusions on the edge of the bottom shell 6. The suction port of the peristaltic pump 2 is directly inserted into the bottom of the storage tank via a flexible hose. The air outlet of the air pump 3 is connected to the air inlet channel 14 of the mixing cap 21 via a rigid pipe. A wire trough inside the bracket 7 centrally routes the electrical wiring to the control board.

[0061] The top cover 8 refers to a covering component that matches the shape of the liquid storage tank opening. Specifically, it can be made of injection-molded plastic parts with a sealing ring, and fixed to the edge of the liquid storage tank by snap-fit ​​or threaded connection. This component forms a physical barrier by completely covering the liquid storage tank opening, blocking the intrusion path of external contaminants.

[0062] This application further proposes that the number of air pumps 3 is two. The two air pumps 3 are connected in parallel to the air intake channel 14. Air pump 3 refers to a device that generates gas pressure through mechanical movement, specifically a diaphragm air pump 3, which compresses gas through reciprocating motion to form an airflow output. Parallel pipeline connection means that the output ends of the two air pumps 3 are connected to the same air intake channel 14 through branched pipes, specifically a tee joint or parallel manifold structure, so that the two airflows merge before entering the air intake channel 14.

[0063] The inlet air passage 14 is a channel that guides the mixing of gas and liquid. Specifically, it can be implemented using a spiral-shaped air guide groove 17, which promotes mixing by extending the contact path between the gas and liquid. The parallel structure of the two air pumps 3 superimposes the gas supply while reducing the workload of a single pump through pressure equalization. When the air pumps 3 start, two independent airflows converge into the inlet air passage 14 through parallel pipelines, forming a stable and uniform airflow distribution within the spiral air guide groove 17. This design extends the contact time between the gas and liquid, ensuring that the washing liquid is fully enveloped by the gas within the water inlet passage 13, thereby improving the gas-liquid mixing efficiency.

[0064] This application further proposes that the foamer 25 includes a plurality of foaming nets 27 and pads 26 arranged sequentially at intervals. The foaming net 27 refers to a mesh component with a porous structure, specifically made of nylon filaments woven into a mesh structure, whose function is to cut air bubbles in the mixed fluid and refine the foam particle size. The pads 26 refer to block-shaped components with a supporting function, whose function is to maintain the spacing between adjacent foaming nets 27 and provide space for interlayer disturbance of the fluid.

[0065] As the mixed fluid passes sequentially through each layer of foaming mesh 27 under pressure, each foaming mesh 27 cuts and breaks up the bubbles in the fluid, reducing the bubble size layer by layer. The spacer 26 allows the fluid to generate turbulence after passing through the foaming mesh 27, prolonging the gas-liquid contact time. The spacing between adjacent foaming meshes 27 is controlled by the thickness of the spacer 26 to prevent the bubbles from re-aggregating due to continuous compression. The rigid support characteristics of the spacer 26 prevent the foaming mesh 27 from deforming under pressure, ensuring the geometric stability of the mixing channels in each layer. Through the above technical solution, this application solves the problem of coarse foam caused by insufficient gas-liquid mixing by refining the bubble size through multi-stage cutting and interlayer disturbance; avoids obstruction of the mixed fluid flow by maintaining fluid permeability through the spacer; ensures that the foamer 25 maintains stable mixing performance during long-term use and prevents structural deformation from affecting the foaming effect.

[0066] This application further proposes that the switch 5 is a micro switch.

[0067] When the inlet 10 of the switching valve 4 connects to the outlet 12 of the first valve, the valve body linkage mechanism presses the drive rod of the micro switch, causing its internal moving contact to momentarily contact and conduct. This action simultaneously triggers the start signals of the air pump 3 and the peristaltic pump 2, ensuring that the gas-liquid mixing process and the water flow switching are strictly synchronized.

[0068] Compared to existing technologies, traditional mechanical switches (5) employ a sliding contact structure, with a trigger stroke typically exceeding 1 mm, resulting in a time lag between valve switching action and electrical signal response. In contrast, the instantaneous action of microswitches reduces signal delay to less than 10 ms, while their contact pressure can reach over 50 gf, significantly improving contact stability under vibration compared to the 20 gf contact pressure of traditional switches (5).

[0069] Through the above technical solution, this application achieves precise triggering of control signals in the gas-liquid mixing device, eliminating the asynchronous switching phenomenon between foam water and clean water caused by mechanical delay. The sealed structure of the micro switch effectively resists water mist corrosion in the bathroom environment, and the contact plating design extends the electrical life to more than 100,000 cycles, solving the control failure problem caused by contact oxidation in traditional switches.

[0070] Obviously, the above detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to describe preferred embodiments, not all embodiments, and is not intended to limit the invention. Various modifications and variations can be made to the present invention by those skilled in the art. Based on the embodiments of the present invention, any modifications, equivalent substitutions, improvements, etc., made by those skilled in the art to all other embodiments obtained without inventive effort are within the scope of protection of the present invention.

Claims

1. A bubble machine that can switch between outputting foamy water and clean water, characterized in that, Include: The housing assembly (1) is provided with a liquid storage tank; Peristaltic pump (2), with pipeline connected to the liquid storage tank; Air pump (3); The control component includes a switch (5) and a switching valve (4); the switching valve (4) is provided with a valve inlet (10), a first valve outlet (12), and a second valve outlet (11), the valve inlet (10) being able to switch between the first valve outlet (12) and the second valve outlet (11); the switch (5) is adapted to be triggered when the valve inlet (10) is connected to the first valve outlet (12); The liquid outlet assembly includes a liquid outlet shell (20) having a foaming channel (24) and a water passage, a mixing cap (21) connected to the inlet of the foaming channel (24), and a foamer (25) disposed in the foaming channel (24); the liquid outlet shell (20) has a liquid outlet (18) communicating with the foaming channel (24) and the water passage; the water passage is connected to the outlet (11) of the second valve. The mixing cap (21) is provided with a water inlet channel (13), a liquid inlet channel (16), and an air inlet channel (14); the water inlet channel (13) is connected to the outlet of the first valve (12) and the foaming channel (24); the liquid inlet channel (16) is connected to the peristaltic pump (2) and the water inlet channel (13); one end of the air inlet channel (14) is connected to the air pump (3), and the other end is connected to the foaming channel (24) and / or the water inlet channel (13); The liquid inlet channel (16) is vertically connected to the water inlet channel (13). The air intake channel (14) is constructed in a spiral around the water intake channel (13).

2. A bubble machine that can switch between outputting foamy water and clean water according to claim 1, characterized in that, The liquid outlet assembly also includes a guide (22) embedded in the water inlet channel (13); a liquid inlet gap is provided around the water inlet channel (13) and the guide (22) so that the washing liquid flowing into the water inlet channel (16) surrounds the outlet of the guide (22).

3. A bubble machine that can switch between outputting foamy water and clean water according to claim 2, characterized in that, The first valve outlet (12), the water inlet channel (13), the guide (22), the foaming channel (24) and the liquid outlet (18) are coaxially arranged.

4. A bubble machine that can switch between outputting foamy water and clean water according to claim 1, characterized in that, The first valve outlet (12), the water inlet channel (13), the foaming channel (24) and the liquid outlet (18) are coaxially arranged; The water flow channel has an L-shaped structure.

5. A bubble machine that can switch between outputting foamy water and clean water according to claim 1, characterized in that, The air intake channel (14) is spirally provided with an air guide groove (17) along the water intake direction of the water intake channel (13); the water intake channel (13) extends into the air guide groove (17) so that the air guide groove (17) surrounds the water intake channel (13).

6. A bubble machine that can switch between outputting foamy water and clean water according to claim 1, characterized in that, The housing assembly (1) includes an outer shell (9) on which the liquid storage tank is provided, and a bracket (7) and a bottom shell (6) connected to the outer shell (9). The peristaltic pump (2), the air pump (3), the switch (5), and the switching valve (4) are disposed on the bracket (7).

7. A bubble machine that can switch between outputting foamy water and clean water according to claim 6, characterized in that, The housing assembly (1) also includes a top cover (8) adapted to cover the liquid storage tank.

8. A bubble machine capable of switching between outputting foamy water and clean water according to any one of claims 1 to 7, characterized in that, The number of air pumps (3) is two; the two air pumps (3) are connected in parallel to the air intake channel (14).

9. A bubble machine capable of switching between outputting foamy water and clean water according to any one of claims 1 to 7, characterized in that, The foamer (25) includes a plurality of foaming nets (27) and pads (26) arranged at intervals in sequence.

10. A bubble machine capable of switching between outputting foamy water and clean water according to any one of claims 1 to 7, characterized in that, The switch (5) is a micro switch.

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