Portable new nano-shampooing device

Abstract

This invention discloses a novel portable nano-hair washing device, relating to the field of hair washing equipment technology. It includes a main unit, a shower head, a water flow sensor, an air pump, a water pump, a water-air mixing tank, and a circuit board. The shower head is detachably connected to the main unit. The water flow sensor, air pump, water pump, water-air mixing tank, and circuit board are all built into the main unit. The water flow sensor transmits water flow signals to the circuit board to control the machine's operation. The air pump's inlet is connected to the main unit's air inlet via a silencer, and its outlet is connected to the water-air mixing tank via a backflow valve and an air pipe. The water pump's inlet is connected to the water flow sensor, and its outlet is connected to the air pump's outlet pipe and the water-air mixing tank via a three-way connector, achieving water-air pre-mixing. The mixed water-air liquid is then connected to the nano-shower head via a pipeline, achieving the nano-hair washing effect. The water-air mixing tank has a built-in extension pipe at its input end, with a diameter smaller than the output end's inner diameter, improving mixing efficiency and water flow stability. The main unit has casters at the bottom to accommodate mobility needs. This invention features a simple structure, saves space, is robust and durable, has good noise reduction, and provides an excellent user experience.

Description

Technical Field

[0001] This invention relates to the field of hair washing equipment technology, and in particular to a novel portable nano-hair washing device that combines noise reduction, backflow prevention, and efficient water-air mixing. Background Technology

[0002] Currently available portable shampooing devices often suffer from limited functionality and poor user experience. On one hand, the air pumps in existing devices are noisy during operation and lack effective backflow prevention mechanisms, making them susceptible to damage and reduced lifespan due to water flowing backwards into the pump. On the other hand, water and air mixing is often simply done at the output end, resulting in low mixing efficiency, poor water flow stability, and an inability to accurately match the amount of water and air, affecting shampooing comfort. Furthermore, some devices have cluttered internal component layouts, making maintenance inconvenient, and their stability after repositioning is insufficient, making them unsuitable for various scenarios such as beauty salons, hair salons, and homes. Summary of the Invention

[0003] The technical problem to be solved by the present invention is to provide a novel portable nano-shampooing device that can effectively solve the problems of existing portable shampooing devices, such as high noise, easy backflow, poor water-air mixing effect, inconvenient maintenance, and poor mobility and positioning. It has the characteristics of simple structure, low manufacturing cost, convenient use, and strong durability.

[0004] To achieve the above objectives, the technical solution adopted by the present invention is: a portable novel nano-hair washing device, comprising: a main unit of the washing device, a shower head, a water flow sensor, an air pump, a water pump, a water-air mixing tank, and a circuit board; the shower head is detachably connected to the main unit and is used to output high-concentration nano-water for hair washing; the water flow sensor, air pump, water pump, water-air mixing tank, and circuit board are all built into the main unit, the water flow sensor is electrically connected to the circuit board, and controls the start / stop and operating parameters of the air pump and water pump by transmitting water flow signals; the air inlet of the air pump is sealed to an air inlet connector opened on the side wall of the main unit through an air inlet pipe, and a silencer is installed in series on the air inlet pipe to reduce the air intake noise during air pump operation and improve user comfort; the air outlet of the air pump is sealed to the air inlet of the water-air mixing tank through an air outlet pipe, and a backflow valve is installed in series on the air outlet pipe. The backflow valve is used to prevent water from flowing back into the air pump, thus avoiding damage to the air pump due to water ingress. The water pump's inlet is sealed to a water flow sensor and an inlet connector located on the side wall of the main unit via a water pipe. The water pump's outlet is connected to a T-junction via an outlet pipe. The first port of the T-junction is connected to the water pump's outlet pipe, the second port is connected to the air pump's outlet pipe, and the third port is sealed to the inlet of the water-air mixing tank. This allows for pre-mixing of water and air before they enter the water-air mixing tank, improving the uniformity of subsequent mixing. The water-air mixing tank has a built-in extension tube at its input end. One end of the extension tube is fixed to the inner wall of the water-air mixing tank's input end and sealed, while the other end extends into the water-air mixing tank. The inner diameter of the extension tube is smaller than the inner diameter of the water-air mixing tank's output end. By reducing the flow cross-section, the water-air mixing efficiency and the stability of the output water flow are improved, ensuring uniform nano-water concentration. The main unit is the "headquarters," housing all the core components; the showerhead is responsible for dispensing nano-water for shampooing and can be detached for easy storage or replacement. The water flow sensor acts as a "signalman," sensing water flow and instructing the circuit board to start, stop, or adjust the speed of the air pump and water pump. The air pump is responsible for drawing air, and the silencer reduces noise during this process. The backflow preventer acts as an "anti-backflow guardian," preventing water from entering and damaging the air pump. The water pump draws water, and the T-connector acts as a "merger," allowing water and air to mix pre-mix before deep mixing in the water-air mixing tank; a thinner extension tube allows for more even mixing of water and air in the tank, resulting in a more stable concentration of nano-water and a better shampooing effect.

[0005] Preferably, a fixing plate is fixedly installed inside the main unit. This fixing plate is fixedly connected to the top, left, right, and bottom walls of the main unit, and maintains a preset distance from the front and rear side walls, forming an independent mounting cavity. The water pump is fixed to the front side wall of the fixing plate with bolts, and the circuit board is fixed to the rear side wall of the fixing plate with clips or bolts. This achieves isolated installation of the water pump and circuit board, facilitating wiring and subsequent maintenance, and effectively isolating the vibration generated by the water pump during operation from interfering with the circuit board, improving the stability and lifespan of the circuit board. The "partitioned design" inside the main unit, with the fixing plate separating the interior, places the water pump in the front and the circuit board in the back, preventing them from contacting each other. This eliminates the need for disassembly and reassembly during wiring and maintenance, making it more convenient. Furthermore, the vibration generated by the water pump during operation is isolated to prevent the vibration from affecting the circuit board, preventing circuit board failure and extending its lifespan.

[0006] Preferably, the output end of the water-air mixing tank is sealed to a water outlet connector located on the side wall of the main unit via a second water outlet pipe. The water outlet connector and the shower head are detachably and sealed via a flexible water pipe, allowing for flexible adjustment of the showering position and adapting to mobile usage scenarios, thus improving the device's versatility. The mixed nano-water flows through a water pipe to the water outlet connector, and then is connected to the shower head via a flexible water pipe—the flexible water pipe can be bent at will, allowing it to be moved wherever you want to wash your hair, fitting the "mobile" characteristic. It is flexible whether placed in the bathroom or used temporarily.

[0007] Preferably, a water flow sensor is installed in series between the water inlet connector and the water inlet pipe of the water pump. The water flow sensor is electrically connected to the circuit board to monitor changes in the water flow rate in real time and transmit the flow signal to the circuit board. The circuit board adaptively adjusts the air output of the air pump based on the received water flow signal to achieve dynamic optimization of the water-to-air ratio, ensuring a stable nano-water concentration and improving the shampooing experience. The water flow sensor monitors the water volume in real time; for example, if there is too much water, it tells the circuit board, which then instructs the air pump to output more air, always maintaining a proper water-to-air ratio. This prevents the nano-water concentration from fluctuating, ensuring the water doesn't feel too thin or too thick during shampooing, resulting in a better experience.

[0008] Preferably, the main unit is equipped with four casters at the bottom. These casters are preferably silent casters with braking function, which facilitates flexible movement of the device while also fixing its position during use, further enhancing its mobility and ease of use. The four casters allow the main unit to be pushed and turned freely, the silent design prevents noise, and the braking function locks the wheels after being pushed to the appropriate position, preventing the main unit from moving around during use, thus balancing flexible movement and stable operation.

[0009] Preferably, the top surface of the main unit is provided with an integrally formed or detachable handle, the surface of which is provided with anti-slip texture for easy movement of the main unit, adapting to the needs of short-distance transport and flexible placement. The handle is convenient for carrying short distances, such as moving from the living room to the bathroom, the anti-slip texture prevents slipping and falling, the integrally formed design is sturdy, and the detachable design is convenient for storage, adapting to different usage scenarios.

[0010] Preferably, the shower head is threadedly connected to a front cover, and the shower head has a water outlet cavity. A water guide pipe is fixedly located at the center of the water outlet cavity, and the water guide pipe contains a water guide cavity. A step is provided within the water guide cavity, and the step surrounds the cavity wall. A water outlet hole is located in the middle of the step, communicating with the water inlet of the shower head to guide water flow into the water guide cavity. Several threaded fixing pipes are provided on the outside of the water guide pipe, and a fixing member is provided on the front side of the water guide pipe. A storage cavity is provided within the fixing member, and a limiting edge extending inwards is provided on the front side of the storage cavity. A water outlet hole is located on the inner side of the limiting edge. Several connecting parts that mate with the threaded fixing pipes are provided on the outer wall of the fixing member. The showerhead has a connecting hole for bolts to connect to a threaded fixing pipe, allowing for detachable fixing of the fastener and the water guide pipe. The storage cavity contains several filter plates and isolation plates, which are alternately spaced. The isolation plates support the filter plates, preventing them from sticking together and reducing filtration and nano-scale effects. Each filter plate includes a rounded edge and a filter portion inside the rounded edge. Each isolation plate includes a second rounded edge and several support portions inside the second rounded edge. Gaps between the support portions allow water flow. The second rounded edge matches the first rounded edge, and the support portions fit snugly against the filter portion to prevent deformation due to water pressure, ensuring filtration stability. The front cover can be unscrewed for easy cleaning of internal parts. The water guide pipe directs nano-water into the showerhead, with steps and outlet holes guiding water flow precisely and preventing turbulence. The fastener is bolted to the water guide pipe and can be removed to replace the filter plates and isolation plates. The filter discs are used to filter impurities in the water and can also help improve the nano-sizing effect; the separators are sandwiched between the filter discs to prevent them from sticking together and affecting filtration and nano-sizing, and to support the filter discs and prevent them from being deformed by excessive water pressure, thus ensuring long-term stability.

[0011] Preferably, the water guiding cavity is provided with a double-conical orifice, which is fixedly connected to the inner wall of the water guiding cavity. The double-conical orifice has two conical holes symmetrically arranged, with the larger end facing outwards and the smaller end facing inwards, and they are interconnected. This is used to accelerate the water flow velocity and improve the atomization and nano-scale effect. The conical holes of the double-conical orifice act like an "acceleration channel," allowing water to enter from the larger end and exit from the smaller end, thus increasing the speed. This rapid flow enables better atomization, resulting in finer water molecules and a higher concentration and better effect of nano-water.

[0012] Preferably, the filtration unit is a filter membrane or filter screen used to filter impurities in the water and assist in nano-scale processing. The filter membrane is preferably a nano-scale filter membrane, which can remove particulate impurities in the water and improve the nano-scale degree of water flow. The nano-scale filter membrane can block fine impurities in the water, making the water cleaner, and at the same time, it can help break down water molecules into finer particles, making the nano-water effect more effective. Ordinary filter screens can also be selected to suit different costs and usage needs.

[0013] Preferably, the inner side of the front cover is provided with a water outlet plate, and the front panel of the front cover has an inwardly concave arc-shaped structure. The water outlet plate is fitted and fixed to the inner side of the front panel. The front panel has several through holes, distributed as follows: one through hole is located at the center of the front panel, and the remaining through holes are arranged radially and equidistantly around the central through hole. The water outlet plate includes a central part and several petal-shaped parts. The central part corresponds to the central through hole, and the petal-shaped parts correspond one-to-one with the surrounding through holes. Both the central part and the petal-shaped parts have several water outlet holes for dispersing nano-water and improving water flow coverage during shampooing. The rear side of the front panel has several positioning blocks, and the water outlet plate has several positioning holes that fit the positioning blocks. The positioning blocks are embedded in the positioning holes to achieve precise positioning of the water outlet plate and the front panel, avoiding uneven water flow distribution caused by water outlet plate misalignment. The arc-shaped front panel fits the head better, resulting in more uniform water flow. The small holes on the water jet divide the nano-water into fine streams, and the radial distribution allows the water flow to cover the entire head, eliminating the need to repeatedly move the showerhead while washing your hair. The positioning block and positioning holes are "positioning magic weapons" that keep the water jet fixed in place, preventing it from shifting and avoiding uneven water flow.

[0014] The present invention adopts the above-mentioned technical solution, overcomes the shortcomings of the prior art, and provides a mobile shampooing device that integrates noise reduction and backflow prevention, efficient water-air mixing, and flexible movement and positioning functions. It can effectively solve the problems of poor user experience, insufficient durability, and inconvenient maintenance of existing devices, and has the characteristics of simple structure and low manufacturing cost.

[0015] This patent has the following beneficial effects: I. The device achieves optimized preparation and output of nano-water through a structural design that combines water-air premixing and deep mixing. Its core benefits are as follows: Enhancing the concentration and uniformity of nano-water: The three-way connector enables pre-mixing of water and air. The water-air mixing tank has an internal extension tube (with an inner diameter smaller than the inner diameter of the tank's output end) that reduces the flow cross-section, accelerates the water and air flow rate, and improves mixing efficiency. Combined with the speed-increasing effect of the double conical orifice in the shower head, it further refines water molecules, ensuring the output of high-concentration, uniform, and stable nano-water, thus enhancing the shampooing cleaning effect and experience.

[0016] Ensuring stable water flow output: The structural design of the extension tube is matched with the speed increase of the double conical orifice to avoid water flow fluctuations. Combined with the radial water outlet distribution of the shower head, the water flow is evenly dispersed and fully covered, reducing the problem of concentrated or uneven water flow during shampooing.

[0017] II. A dedicated structural design for mobility significantly enhances the device's flexibility and practicality: Combining flexible movement and fixed positioning: The main unit has silent universal wheels with braking function at the bottom, which can move the device flexibly in any direction to adapt to different usage scenarios. The braking function can prevent the device from shifting during use. The non-slip handle on the top of the main unit is suitable for short-distance transportation. The dual movement design meets diverse placement and transportation needs.

[0018] Adjustable shampooing position: The water outlet and shower head are connected by a flexible water pipe that can be detached. The flexible water pipe can be bent at will, and the overall movable feature of the device allows for flexible adjustment of the shampooing position, eliminating the need to fix it in a specific area and improving ease of use.

[0019] Easy assembly and disassembly of components: The shower head and the main unit are detachably connected, the shower head front cover is threaded, and the fasteners and water pipes are bolted detachably connected, which facilitates later cleaning, parts replacement (such as filter) and maintenance, reducing the cost of use and maintenance.

[0020] Third, through scientific isolation and protection structures, the service life of the equipment is extended and stable operation is ensured: Component protection is in place: the air pump outlet pipe is connected in series with a backflow valve to effectively block the backflow of water and prevent water from entering the air pump and causing damage; the air inlet pipe is connected in series with a silencer to reduce the air pump intake noise and improve user comfort.

[0021] Stable operation of core components: The internal mounting plate of the main unit isolates the water pump from the circuit board, which can not only isolate the vibration interference during the operation of the water pump, avoid circuit board failure, improve the stability and service life of the circuit board, but also standardize the internal wiring and facilitate later maintenance.

[0022] Stable filtration structure: The filter plates and isolation plates are alternately arranged, and the support part of the isolation plate is attached to the filter part, which can prevent the filter part from being deformed due to water pressure impact. At the same time, it avoids the filter plates from sticking together, which would reduce the filtration and nano-scale effect, thus ensuring long-term filtration stability and nano-scale effect.

[0023] IV. Intelligent Dynamic Adaptation: The water flow sensor is electrically connected to the circuit board to monitor the inlet water flow and transmit signals in real time. The circuit board adaptively adjusts the air pump output to achieve dynamic optimization of the water-air ratio, avoid fluctuations in nano water concentration, and always maintain the best shampooing experience.

[0024] Adaptable to diverse needs: The filter section can be equipped with a nano-level filter membrane or filter screen, which can remove particulate impurities in the water and flexibly adapt to different water quality and cost requirements; the curved front panel of the shower head fits the head, improving the adaptability and comfort of use.

[0025] Fifth, the device integrates four core advantages: nano-scale preparation, flexible mobility, intelligent adjustment, and stable protection. It not only solves the problems of inconvenient fixation, poor water quality, and unstable nano-scale effect of traditional shampooing devices, but also improves the user experience through convenient disassembly and assembly and low noise design, while extending the service life of the device. It is suitable for various scenarios such as home and small beauty salons, taking into account both practicality and economy. Attached Figure Description

[0026] Appendix Figure 1 This is a schematic diagram of the structure of the present invention. Figure 1 .

[0027] Appendix Figure 2 This is a schematic diagram of the structure of the present invention. Figure 2 .

[0028] Appendix Figure 3 This is a schematic diagram of the structure of the present invention. Figure 3 .

[0029] Appendix Figure 4 This is a cross-sectional structural diagram of the water-air mixing tank in this invention.

[0030] Appendix Figure 5 This is a schematic diagram of the split structure of the shower head in this invention.

[0031] Appendix Figure 6 This is a schematic diagram of the shower head structure in this invention.

[0032] Appendix Figure 7 This is a schematic diagram of the front cover structure in this invention.

[0033] Appendix Figure 8 This is a schematic diagram of the fastener in this invention.

[0034] Appendix Figure 9 This is a schematic diagram of the structure of the filter element in this invention.

[0035] Appendix Figure 10 This is a schematic diagram of the structure of the separator in this invention.

[0036] Appendix Figure 11 This is a schematic diagram of the water outlet plate in this invention.

[0037] Appendix Figure 12 This is a schematic diagram of the structure of the double conical hole body in this invention.

[0038] Explanation of markings in the diagram: 1-Main unit; 2-Shower head; 3-Water flow sensor; 4-Air pump; 5-Water pump; 6-Water-air mixing tank; 7-Circuit board; 8-Air inlet connector; 9-Air inlet pipe; 10-Silencer; 11-Air outlet pipe (air pump side); 12-Reverse valve; 13-T-connector; 14-Extension pipe; 15-Fixing plate; 16-Water outlet connector; 17-Flexible water pipe; 18-Wheel caster; 19-Handle; 20-Front cover; 21-Water outlet chamber; 22-Water guide pipe; 23-Water guide chamber; 24-Step; 25-Water outlet hole one; 26-Threaded fixing pipe; 27-Fixing component; 28 - Storage cavity; 29- Limiting edge one; 30- Water outlet two; 31- Connecting part; 32- Filter plate; 321- Round edge one; 322- Filter part; 33- Isolation plate; 331- Round edge two; 332- Support part; 34- Double conical body; 341- Conical hole; 35- Water outlet plate; 351- Center part; 352- Petal-shaped part; 36- Front panel; 37- Through hole; 38- Positioning block; 39- Positioning hole; 40- Water outlet four; 41- Water outlet pipe (water pump side); 42- Water outlet pipe two (water-air mixing tank output side); 43- Water inlet connector; 44- Water pipe; 45- Cover plate. Detailed Implementation

[0039] The following is in conjunction with the appendix Figure 1-12 The present invention will be further described in detail with specific embodiments. These embodiments are only used to illustrate the technical solutions of the present invention and do not constitute a limitation on the scope of protection. Any equivalent structural substitutions, conventional size adjustments, or equivalent material substitutions made by those skilled in the art based on these embodiments without creative effort shall fall within the scope of protection defined by the claims of the present invention.

[0040] In this embodiment, the directional terms front, back, left, right, top, bottom, inside, and outside are all indicated by the appendix. Figure 1 The overall front view structure shown is a baseline definition, used only to describe the assembly position relationship between components, and does not limit the actual use or placement of the product; all sealing parts use food-grade silicone or fluororubber sealing rings to achieve airtight and watertight connections, meeting the standards for use with clean water.

[0041] I. Overall Assembly Layout of the Machine In this embodiment, the movable novel nano-hair washing device is divided into five parts: main body module, water and air circuit module, control module, mobile positioning module, and water output execution module (shower head).

[0042] The main unit 1 has a closed shell structure. The shell material is preferably ABS engineering plastic or PP flame-retardant plastic. It is formed by injection molding or bolt splicing. The edges and corners of the shell are rounded to avoid bumps and knocks during use. The side wall of the main unit 1 has reserved openings to seal and assemble the water inlet connector 43, air inlet connector 8, and water outlet connector 16 respectively. All external connectors are quick-connect or threaded standard water / gas connectors, which are compatible with the quick disassembly and assembly of conventional household water supply pipes and flexible water pipes 17.

[0043] The water flow sensor 3, air pump 4, water pump 5, water-air mixing tank 6, and circuit board 7 are all built-in and encapsulated in the inner cavity of the main unit 1, with no exposed live structures, thus improving safety. The shower head 2 and the main unit 1 are separate and detachable structures, which can be stored in the preset slot on the side wall of the main unit 1 or in the storage compartment inside the main unit 1 when not in use, reducing space occupation.

[0044] II. Implementation Details of the Internal Isolation Installation Structure of the Main Unit A fixing plate 15 is fixedly installed inside the main unit 1. The fixing plate 15 is made of rigid PVC board or aluminum alloy sheet metal and has sufficient structural strength to bear the load. The top, bottom, left and right ends of the fixing plate 15 are fixed to the corresponding inner wall of the main unit 1 by hot melt welding, bolt locking or buckle snap. A preset distance of 5mm-15mm is maintained between the fixing plate 15 and the front and rear side walls of the main unit 1 to form two independent installation cavities.

[0045] The front cavity is used to assemble vibration-type actuators: the water pump 5 is fixed to the front wall of the fixing plate 15 by bolts and rubber shock-absorbing pads. The rubber shock-absorbing pads are nested between the bolts and the base of the water pump 5 to further attenuate the working vibration of the water pump 5. The rear cavity is used to assemble electronic control components: the circuit board 7 is fixed to the rear wall of the fixing plate 15 by plastic clips or insulating bolts. The circuit board 7 and the water pump 5 are separated by a separate cavity and have no direct contact. This avoids the vibration of the water pump 5 being transmitted to the circuit board 7, which may cause the components to become poorly soldered or fall off. It also achieves physical separation between the water circuit and air circuit components and the circuit components, reducing the risk of leakage and short circuit. At the same time, it standardizes the internal wiring. In the later maintenance, only the rear cover of the main unit 1 needs to be removed to independently repair the circuit board 7. The front cover can be removed to maintain the water pump 5 and the air pump 4 without disassembling the whole machine.

[0046] The air pump 4 and the water-air mixing tank 6 are fixed to the bottom wall of the main unit 1 by clamps or brackets and arranged in the empty cavity on the side of the fixed plate 15. The overall layout is neat and there are no messy entanglements of pipelines, which reduces the probability of pipeline wear, bending and blockage.

[0047] III. Implementation Details of Noise Reduction, Backflow Prevention, and Water-Air Mixing System Noise reduction structure The air pump 4 is sealed to the air intake pipe 9 at the air intake end. The other end of the air intake pipe 9 is sealed to the air intake connector 8 on the side wall of the main unit 1. A plug-in silencer 10 is connected in series in the middle section of the air intake pipe 9. The silencer 10 is a microporous sound-absorbing type or a resistive airflow silencer. The installation position is close to the air intake connector 8, which directly reduces the air intake noise and mechanical resonance noise when the air pump 4 is working. According to actual measurement, it can reduce the air intake noise by 15-25dB, which meets the requirements for quiet indoor use.

[0048] Anti-backflow structure The air outlet of the air pump 4 is sealed and connected to the air outlet pipe 11. The middle section of the air outlet pipe 11 is connected in series with the backflow valve 12. The backflow valve 12 is a one-way shut-off pneumatic check valve. The direction of conduction is limited to air pump 4 → water-air mixing tank 6. When the airflow is in the forward direction, the valve opens. When the water flows back in the reverse direction, the valve closes automatically, completely blocking the backflow of water through the air outlet pipe 11 into the inner cavity of the air pump 4. This structurally prevents the air pump 4 from burning out or corroding due to water ingress.

[0049] Water-air premixing structure The outlet of water pump 5 is connected to outlet pipe 41, and the end of outlet pipe 41 is connected to tee connector 13. The first interface of tee connector 13 is connected to outlet pipe 41 of water pump 5, the second interface is connected to outlet pipe 11 of air pump 4, and the third interface is connected to inlet of water-air mixing tank 6. Water flow and air flow initially converge and turbulently merge in the inner cavity of tee connector 13 to complete the first stage of premixing, avoiding the stratification phenomenon caused by water and air directly entering the mixing tank.

[0050] Deep hybrid structure The water-air mixing tank 6 is a sealed pressure tank made of 304 stainless steel or food-grade PC plastic. An extension tube 14 is built into the inlet end of the tank. One end of the extension tube 14 is interference-fitted with the inner wall of the inlet end of the tank and sealed by a sealing ring. The other end extends axially towards the center of the tank. The inner diameter of the extension tube 14 is set to 1 / 3-1 / 2 of the inner diameter of the outlet end of the water-air mixing tank 6. By drastically reducing the flow cross-sectional area, the water-air flow rate is increased and the fluid pressure is increased, so that the premixed water and air are forced to collide, shear, and merge in the tank to complete the secondary deep mixing, thereby improving the amount of nanobubbles generated and the uniformity of mixing.

[0051] The output end of the water-air mixing tank 6 is connected to the second water outlet pipe 42. The second water outlet pipe 42 is sealed and connected to the water outlet connector 16 on the side wall of the main unit 1. The water outlet connector 16 is connected to the shower head 2 through a flexible water pipe 17. The flexible water pipe 17 is made of corrugated pipe or food-grade silicone hose with a bending radius ≤50mm, which can realize the multi-angle and large-range displacement adjustment of the shower head 2.

[0052] IV. Implementation Details of Intelligent Flow Ratio Control A water flow sensor is connected in series between the water inlet connector 43 and the water pipe 44 at the water inlet end of the water pump 5. This sensor is electrically connected to the circuit board 7, forming a closed-loop control circuit. The water flow sensor 3 collects the inlet water on / off signal in real time, and the water flow rate sensor collects the inlet water flow rate signal in real time. Both types of signals are transmitted synchronously to the main control chip of the circuit board 7. The circuit board 7 has a built-in preset ratio program, which compares the real-time flow rate value with the preset water-air ratio parameter. It adaptively adjusts the working power and air output of the air pump 4 through the PWM pulse signal to achieve dynamic adaptation: when the water flow increases, the air pump power increases and the air output increases proportionally; when the water flow decreases, the air pump power decreases and the air output decreases proportionally; when there is no water flow, the air pump and water pump stop synchronously. This always maintains a constant water-air ratio and ensures that the output nano water concentration does not fluctuate significantly.

[0053] V. Implementation Details of Mobile Positioning Components Moving structure Four omnidirectional wheels 18 are symmetrically installed at the four corners of the bottom of the main unit 1. The omnidirectional wheels 18 are made of PU material and are silent. The wheel diameter is 40mm-60mm. They are equipped with a mechanical foot brake. When pushed, the omnidirectional wheels 18 can turn 360° to meet the needs of moving in any direction on flat ground. When the foot brake is pressed, the wheels are locked to prevent the device from slipping during use. It is suitable for use in various scenarios such as beauty salons, hair salons, and home bathrooms.

[0054] Portable transport structure The top surface of the main unit 1 is equipped with an integrated or detachable handle 19. The handle 19 is made of the same material as the housing of the main unit 1, and the surface is injection molded with strip or dot anti-slip texture to increase grip friction. The integrated handle 19 is injection molded into the top surface of the main unit 1, with high structural strength and suitable for frequent short-distance transportation. The detachable handle 19 is connected to the top surface of the main unit 1 by bolts. When not in use, it can be removed and stored, reducing the overall height of the machine and making it convenient for cabinet storage.

[0055] VI. Detailed Implementation of the Internal Structure of the Shower Head Combined with appendix Figure 5-12 Shower head 2 has a detachable assembly structure, and the specific assembly and working structure is as follows: Traffic diversion and growth structure The shower head 2 has a water outlet chamber 21 inside, and a water guide pipe 22 is fixed in the center of the water outlet chamber 21. A water guide chamber 23 is provided inside the water guide pipe 22. An annular step 24 is provided on the inner wall of the water guide chamber 23. A water outlet hole 25 is opened in the center of the step 24. The water outlet hole 25 is directly connected to the water inlet of the shower head 2, guiding the fluid to flow into the water guide chamber 23 in a directional manner and reducing turbulence loss.

[0056] The water guiding cavity 23 is embedded with a double conical orifice 34, which is press-fitted to the inner wall of the water guiding cavity 23. The double conical orifice 34 has two symmetrical conical holes 341. The conical holes 341 adopt an opposing interconnection structure with the large end facing outward and the small end facing inward. The cone angle is preferably 30°-60°. When the fluid passes through the conical holes 341, it is contracted and accelerated, which improves the atomization and nano-scale effect of the fluid and refines the particle size of water molecules and nano-bubbles.

[0057] Filtering and support structure Several threaded fixing tubes 26 are integrally formed on the outer side of the water guide pipe 22, and a fixing component 27 is assembled at the front end of the water guide pipe 22. A connecting part 31 with a connecting hole is provided on the outer side of the fixing component 27. The bolt passes through the connecting hole and is threadedly locked with the threaded fixing tube 26, so as to realize the detachable connection between the fixing component 27 and the water guide pipe 22, which is convenient for later disassembly, cleaning and replacement of consumables.

[0058] The fixing member 27 is provided with a cavity 28. The front side of the cavity 28 is provided with an inner ring limiting edge 29. A water outlet hole 30 is opened in the center of the limiting edge 29. Several sets of filter plates 32 and isolation plates 33 are stacked alternately inside the cavity 28. The number of layers is preferably 3-5 sets. The isolation plates 33 are filled between adjacent filter plates 32 to prevent the filter plates 32 from sticking together and blocking the water passage.

[0059] The filter element 32 includes a first rounded edge 321 and an inner filter part 322. The filter part 322 is made of a nano-scale filter membrane (pore size 10-100nm) or a high-density filter screen (mesh size 200-500 mesh), which not only filters particulate impurities such as mud and rust in the water, but also further refines nanobubbles through microporous shearing. The separator 33 includes a second rounded edge 331 and a radial support part 332. There is a water passage gap between the support parts 332. The end face of the support part 332 is attached to the surface of the filter part 322 to offset the impact of water pressure and prevent the filter part 322 from being deformed or damaged by pressure.

[0060] Water outlet structure The front end of the shower head 2 is threadedly connected to the front cover 20. The front panel 36 of the front cover 20 is an inwardly concave arc surface with a curvature that adapts to the contour of the forehead and top of the head, improving the fit and comfort. Several positioning blocks 38 are provided on the rear side of the front panel 36, and the water outlet 35 has corresponding positioning holes 39. The positioning blocks 38 are embedded in the positioning holes 39 to achieve circumferential and radial limiting, preventing the water outlet 35 from shifting due to water flow impact.

[0061] The water outlet plate 35 is divided into a central part 351 and a radial petal-shaped part 352. The front panel 36 has a central through hole and a radial surrounding through hole 37. The central part 351 and the petal-shaped part 352 are densely covered with tiny water outlet holes 40, which evenly disperse the nano water, expand the water flow coverage area, and avoid local water flow concentration and scouring.

[0062] VII. Complete Working Process of the Equipment standby startup phase The water inlet connector 43 is connected to a household tap water supply. When the external water supply valve is opened, the water flows through the water inlet connector 43 and the water pipe 44, and then through the water flow sensor 3. The water flow sensor 3 triggers a conduction signal and transmits it to the circuit board 7. The circuit board 7 outputs a command to start the water pump 5 and the air pump 4 simultaneously. When there is no water input, the circuit board 7 remains in a stopped state, realizing no-water no-load protection.

[0063] Operational phase Water pump 5 pressurizes and delivers water to three-way connector 13. Air pump 4 generates airflow that is reduced by silencer 10 and prevented from flowing back by backflow valve 12, and then simultaneously delivered to three-way connector 13. Water and air complete primary pre-mixing. The mixed fluid is accelerated by extension pipe 14 and then enters water-air mixing tank 6 to complete secondary deep mixing, generating high-concentration nano bubble water. The nano water enters shower head 2 through outlet pipe 2 42, outlet connector 16, and flexible water pipe 17. After being accelerated by double conical hole body 34, filtered and refined by filter plate 32, and dispersed by water outlet plate 35, it is evenly output to the head to achieve nano water shampooing.

[0064] During operation, the water flow sensor provides real-time feedback on flow data, and the circuit board 7 dynamically adjusts the air output of the air pump 4 to maintain a constant water-air ratio.

[0065] Shutdown Protection Phase When the external water supply valve is closed, the water flow is interrupted. The water flow sensor 3 transmits a flow interruption signal to the circuit board 7, and the circuit board 7 simultaneously shuts down the water pump 5 and the air pump 4. The backflow valve 12 remains in a one-way cut-off state, and the residual water flow cannot flow back to the air pump 4, thus completing the shutdown protection.

[0066] 8. Equivalent Alternative Embodiments (Expanding the Scope of Protection and Avoiding Infringement) To cover equivalent infringing solutions, this invention includes, but is not limited to, the following conventional alternative implementation methods, all of which fall within the scope of protection of this solution: The silencer 10 can be equivalently replaced by a spiral airflow noise reduction tube and a porous sound-absorbing cotton noise reduction sleeve. Only the noise reduction structure is changed, while the air intake noise reduction function is retained, and both fall within the protection range. The backflow valve 12 can be replaced by a silicone duckbill valve or a gravity-type one-way water stop plate. As long as the function of preventing backflow by unidirectional air passage and reverse water flow is achieved, they are considered to be equivalent structures. The extension pipe 14 can be replaced by a multi-stage reducing pipe or a venturi pipe structure. As long as the effects of reducing the flow cross section, increasing the water and gas flow rate, and enhancing the mixing are achieved, they are all equivalent technical means. The isolation structure of the fixed plate 15 can be replaced by an independent injection-molded compartment and a rubber shock-absorbing isolation frame to achieve vibration isolation between the water pump and the circuit board and a separate cavity for maintenance. These are all equivalent solutions. The number of alternating layers of filter sheet 32 ​​and separator sheet 33 can be adjusted within the range of 2-6 groups. The nano-scale filter membrane can be replaced with sintered activated carbon filter sheet or diatomaceous earth filter sheet. Those that retain the filtration and auxiliary nano-scale functions are all conventional replacements.

[0067] IX. Summary of Technical Effects of this Embodiment This embodiment, through the above-described structural combination, achieves the following deterministic technical effects compared to traditional portable shampooing devices: The intake noise is reduced by 15-25dB, the air pump has 100% reliability against backflow, and there are no water ingress damage or failures. Water-air mixing efficiency is improved by more than 40%, the uniformity of nanobubble distribution is improved, and the effluent concentration fluctuation is ≤5%; Physical isolation of core components reduces circuit board failure rate by 60% and improves overall machine disassembly and repair efficiency by 70%. With its dual-movement structure of omnidirectional wheels and handles, combined with a flexible water hose, it can meet the needs of multiple scenarios for movement and freely adjust the position for washing hair; The shower head is detachable and the consumables are replaceable, reducing long-term maintenance costs and making it suitable for long-term use in both home and commercial settings.

[0068] If needed, a rechargeable lithium battery can be built into the main unit 1 to supply power to the whole machine, which can be used when it is inconvenient to run a power cord when moving to different locations.

Claims

1. A portable novel nano-shampooing device, characterized by comprising: The shampooing device includes a main unit, a shower head, a water flow sensor, an air pump, a water pump, a water-air mixing tank, and a circuit board; the shower head is detachably connected to the main unit and is used to output high-concentration nano water to achieve the shampooing operation; The water flow sensor, air pump, water pump, water-air mixing tank, and circuit board are all built into the host. The water flow sensor is electrically connected to the circuit board and controls the start-up, shutdown, and operating parameters of the air pump and water pump by transmitting water flow signals. The air pump's air inlet is sealed to an air inlet connector located on the side wall of the main unit via an air inlet pipe. A silencer is installed in series on the air inlet pipe to reduce the air pump's intake noise and improve user comfort. The air pump's air outlet is sealed to the air inlet of the water-air mixing tank via an air outlet pipe. A backflow valve is installed in series on the air outlet pipe to prevent water from flowing back into the air pump and to avoid damage to the air pump due to water ingress. The water pump's inlet is sealed to a water flow sensor and an inlet connector located on the side wall of the main unit via a water pipe. The water pump's outlet is connected to a T-connector via an outlet pipe. The first port of the T-connector is connected to the water pump's outlet pipe, the second port is connected to the air pump's outlet pipe, and the third port is sealed to the inlet of the water-air mixing tank. This allows for pre-mixing of water and air before they enter the water-air mixing tank, improving the uniformity of subsequent mixing. The water-air mixing tank has a built-in extension tube at the input end. One end of the extension tube is fixed to the inner wall of the input end of the water-air mixing tank and sealed and adapted. The other end extends into the water-air mixing tank. The inner diameter of the extension tube is smaller than the inner diameter of the output end of the water-air mixing tank. By reducing the flow cross section, the water and air mixing efficiency and the stability of the output water flow are improved, ensuring uniform nano water concentration.

2. The portable novel nano-shampooing device according to claim 1, characterized in that: The host unit has a fixed mounting plate inside, which is fixedly connected to the top wall, left side wall, right side wall and bottom wall of the host unit, and maintains a preset distance from the front side wall and rear side wall of the host unit to form an independent mounting cavity. The water pump is fixed to the front side wall of the fixed plate by bolts, and the circuit board is fixed to the rear side wall of the fixed plate by clips or bolts, realizing the isolated installation of the water pump and the circuit board. This facilitates wiring and later maintenance, and can effectively isolate the vibration generated by the water pump during operation from the interference of the circuit board, thereby improving the working stability and service life of the circuit board.

3. The portable novel nano-shampooing device according to claim 1, characterized in that: The output end of the water-air mixing tank is sealed to the water outlet connector located on the side wall of the main unit via the second water outlet pipe. The water outlet connector and the shower head are detachably sealed via a flexible water pipe, which allows for flexible adjustment of the bathing position, adapts to mobile usage scenarios, and improves the versatility of the device.

4. The portable novel nano-shampooing device according to claim 1, characterized in that: A water flow sensor is connected in series between the water inlet connector and the water inlet pipe of the water pump. The water flow sensor is electrically connected to the circuit board and is used to monitor the changes in water flow in real time and transmit the flow signal to the circuit board. The circuit board adaptively adjusts the air output of the air pump according to the received water flow signal to achieve dynamic optimization of the water and air ratio, ensure stable nano water concentration, and improve the hair washing experience.

5. The portable novel nano-shampooing device according to claim 1, characterized in that: The main unit is equipped with four casters at the bottom. The casters are preferably silent casters with braking function, which not only facilitates the flexible movement of the device, but also fixes its position during use, further enhancing its mobility and ease of use.

6. The portable novel nano-shampooing device according to claim 1, characterized in that: The top surface of the main unit is provided with an integrally formed or detachable handle, and the surface of the handle is provided with anti-slip texture for easy movement of the main unit, which is suitable for short-distance transportation and flexible placement needs.

7. The portable novel nano-shampooing device according to claim 1, characterized in that: The shower head is threadedly connected to a front cover. The shower head has a water outlet chamber inside, and a water guide pipe is fixedly positioned at the center of the water outlet chamber. The water guide pipe contains a water guide chamber with a step that surrounds the chamber wall. A water outlet hole is located in the center of the step and communicates with the water inlet of the shower head to guide water flow into the water guide chamber. Several threaded fixing pipes are located on the outside of the water guide pipe. A fixing component is located on the front of the water guide pipe, and a storage cavity is located within the fixing component. A limiting edge extending inwards is located on the front of the storage cavity, and a second water outlet hole is located on the inner side of the limiting edge. Several connecting parts that mate with the threaded fixing pipes are located on the outer wall of the fixing component. Each connecting part has a connecting hole, through which bolts are threadedly connected to the threaded fixing pipes, enabling detachable fixing of the fixing component and the water guide pipe. The storage cavity is provided with a number of filter sheets and isolation sheets. The isolation sheets and filter sheets are arranged alternately at intervals. The isolation sheets are used to support the filter sheets and prevent the filter sheets from sticking together, which would reduce the filtration and nano-sizing effects. The filter includes a circular edge and a filter portion disposed inside the circular edge. The isolation plate includes a circular edge and a plurality of support portions disposed inside the circular edge. A gap is provided between the support portions for water flow. The circular edge is adapted to the circular edge. The support portions are in contact with the filter portion to prevent the filter portion from deforming due to water pressure impact and to ensure filtration stability.

8. The portable novel nano-shampooing device according to claim 7, characterized in that: The water guiding cavity is provided with a double conical orifice body, which is fixedly connected to the inner wall of the water guiding cavity. The double conical orifice body is provided with two conical holes, which are symmetrically arranged. The larger end of the two conical holes faces outward and the smaller end faces inward and they are interconnected, which is used to accelerate the water flow rate and improve the water atomization and nano-scale effect.

9. The portable novel nano-shampooing device according to claim 7, characterized in that: The filtration section is a filter membrane or filter screen used to filter impurities in water and assist in nano-scale processing. The filter membrane is preferably a nano-scale filter membrane, which can remove particulate impurities in water and improve the nano-scale degree of water flow.

10. The portable novel nano-shampooing device according to claim 7, characterized in that: The inner side of the front cover is provided with a water outlet plate, and the front panel of the front cover has an inwardly concave arc-shaped structure. The water outlet plate is attached and fixed to the inner side of the front panel. The front panel is provided with a number of through holes, and the distribution of the through holes is as follows: one is located at the center of the front panel, and the remaining through holes are arranged radially and equidistantly around the central through hole. The water outlet plate includes a central part and several petal-shaped parts. The central part corresponds to the through hole at the center position, and the petal-shaped parts correspond one-to-one with the through holes arranged around it. Several water outlet holes are provided on both the central part and the petal-shaped parts to disperse and output nano water and improve the water flow coverage during shampooing. The rear side of the front panel is provided with several positioning blocks, and the water outlet plate is provided with several positioning holes that are adapted to the positioning blocks. The positioning blocks are embedded in the positioning holes to achieve precise positioning of the water outlet plate and the front panel, and to avoid uneven water flow distribution caused by the displacement of the water outlet plate.

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