Pneumatic control atomizing introduction device

Abstract

The present application relates to atomization delivery device technical field, especially in pneumatic control's atomization guide device, including casing, liquid guide device, air pump, controller and injection mixing assembly, the casing is equipped with bottle mouth connection cavity, the bottle mouth connection cavity is used for with the bottle mouth of liquid storage bottle can be detached seal connection;The bottle mouth connection cavity is equipped with one-way air supplement valve, the one-way air supplement valve is communicated with the outside and the inside of the liquid storage bottle, in order to be supplemented to the liquid storage bottle air;The injection mixing assembly has gas inlet, suction inlet and mixing outlet, and includes the gas nozzle, throat and pressure recovery section that are communicated in turn, wherein, the gas inlet is communicated with the gas nozzle, the suction inlet is communicated with the low pressure area of the throat, and the mixing outlet is communicated with the pressure recovery section;Mixed gas-liquid two-phase mixed flow through the mixing outlet enters the liquid guide inlet and is atomized by the atomizing nozzle and is output, realizes the effect that spraying output is more continuous, atomization is more uniform.

Description

Technical Field

[0001] This invention relates to the field of atomizing delivery devices, and particularly to a pneumatically controlled atomizing induction device. Background Technology

[0002] In nursing, beauty, and medical spray / medication applications, commonly used liquid delivery devices or aerosol sprays typically employ mechanically pressing the nozzle, manually squeezing the pump head, or relying on gravity flow to deliver serums, skincare solutions, disinfectants, or medications from the reservoir to the skin or target area. However, these solutions generally suffer from drawbacks such as output volume dependence on operator pressure and frequency, unstable atomization, poor compatibility with high-viscosity liquids, and a tendency to leak or drip when not in use. Furthermore, during continuous dispensing, insufficient air replenishment can lead to dissipation attenuation, affecting continuity and uniformity. Summary of the Invention

[0003] The purpose of this invention is to provide a pneumatically controlled atomization introduction device that can achieve gas-liquid mixed atomization output and improve spray stability.

[0004] The objective of this invention is achieved as follows:

[0005] A pneumatically controlled atomizing induction device includes a housing, a liquid guiding device, an air pump, a controller, and an ejector mixing assembly. The housing has a nozzle connection cavity for detachably and sealingly connecting to the nozzle of a liquid storage bottle. The nozzle connection cavity has a one-way gas replenishment valve that connects to the outside and the inside of the liquid storage bottle to replenish the liquid storage bottle with gas. The ejector mixing assembly has a gas inlet, an intake port, and a mixing outlet, and includes a gas nozzle, a throat, and a diffuser section connected in sequence. The gas inlet connects to the gas nozzle, the intake port connects to the low-pressure area of ​​the throat, and the mixing outlet connects to the diffuser section. The nozzle connection cavity has a liquid channel that connects to the intake port of the ejector mixing assembly. The liquid guiding device is disposed on the housing and includes a liquid guiding inlet and at least one liquid guiding outlet. The liquid guiding inlet connects to the mixing outlet of the ejector mixing assembly, and an atomizing nozzle is disposed at the liquid guiding outlet. The air pump is installed inside the housing, and the exhaust port of the air pump is connected to the gas inlet of the ejector mixing assembly. The controller is installed on the housing and is used to drive the air pump to start and stop. When the air pump is started, the gas is ejected through the gas nozzle to form a high-speed jet and generate negative pressure at the throat, thereby attracting the liquid in the storage bottle into the ejector mixing assembly through the suction port and mixing with the gas. The mixed gas-liquid two-phase flow flows through the mixing outlet into the liquid guiding inlet and is atomized and output by the atomizing nozzle.

[0006] By using an air pump to drive the ejector mixing assembly to create a stable negative pressure at the throat, the liquid in the storage bottle is actively drawn in and mixed with gas before being atomized and output through the atomizing nozzle. At the same time, a one-way gas supply valve continuously replenishes the storage bottle with gas. This solves the technical problems of existing devices that rely on mechanical pressing or gravity discharge, such as the liquid output being greatly affected by human operation, liquid output attenuation due to the accumulation of negative pressure in the bottle during continuous operation, unstable atomization, and poor performance in adapting to different liquids. As a result, the spray output is more continuous, the atomization is more uniform, the use is less labor-intensive, and the output consistency is higher.

[0007] The objective of this invention can also be achieved by the following technical measures:

[0008] Furthermore, a solenoid valve is provided between the liquid channel and the suction port of the ejector mixing assembly. The solenoid valve is a normally closed solenoid valve, which has a first port and a second port. The first port is connected to the liquid channel, and the second port is connected to the suction port.

[0009] The air pump and the solenoid valve are electrically connected to the controller. The controller is used to drive the solenoid valve to open when the air pump is started and to drive the solenoid valve to close when the air pump is stopped, so that the liquid in the storage bottle enters the inlet through the solenoid valve only when the air pump is in the spray working state.

[0010] By installing a normally closed solenoid valve between the liquid channel and the inlet, and controlling the opening and closing of the solenoid valve in conjunction with the start and stop of the air pump, the liquid enters the inlet only when the spray is in operation. This solves the technical problems of liquid seeping into the mixing channel due to gravity or changes in attitude when not in operation, causing dripping pollution, accidental spraying, and blockage caused by residual liquid accumulation. This significantly improves the sealing reliability and safety of use when the machine is off, and enhances the controllability and consistency of spray start and stop.

[0011] Furthermore, it also includes an air tube and a mixing flow delivery tube. One end of the air tube is connected to the exhaust port of the air pump, and the other end of the air tube is connected to the gas inlet of the ejector mixing assembly. One end of the mixing flow delivery tube is connected to the mixing outlet of the ejector mixing assembly, and the other end of the mixing flow delivery tube is connected to the liquid guiding inlet of the liquid guiding device. The housing is provided with an air inlet that communicates with the outside. The air inlet is connected to the air inlet of the air pump, and a barrier is provided at the air inlet to prevent liquid from entering the air inlet of the air pump.

[0012] By setting up air pipes and mixing flow delivery pipes to form the air supply path from the air pump to the ejector mixing component and the gas-liquid two-phase mixing flow delivery path from the ejector mixing component to the liquid guiding device, the connection between the air path and the mixing flow path is clearer, the sealing is more reliable, and the assembly layout is easier. At the same time, an air inlet is set on the housing that communicates with the outside and the air pump inlet, and a barrier to prevent liquid from entering is arranged at the air inlet. This can reduce the risk of performance degradation, contamination or damage caused by liquid accidentally entering the air pump while ensuring stable air intake of the air pump, thereby improving the overall operating stability, durability and reliability and consistency of atomization output.

[0013] Furthermore, the atomizing nozzle includes a nozzle body and a swirling element. An atomizing chamber is formed within the nozzle body. The upper end of the nozzle body is provided with a gas-liquid inlet communicating with the atomizing chamber, and the lower end of the nozzle body is provided with a spray hole communicating with the atomizing chamber. The swirling element is disposed within the atomizing chamber and located between the gas-liquid inlet and the spray hole, and is used to atomize and spray out the gas-liquid two-phase mixed flow that enters the atomizing chamber through the gas-liquid inlet into a swirling flow after being atomized by the spray hole. The liquid guide outlet is connected to the gas-liquid inlet.

[0014] By setting an atomizing chamber inside the atomizing nozzle and arranging a swirling element between the gas-liquid inlet and the nozzle orifice, the gas-liquid two-phase mixture entering the atomizing chamber forms a stable swirling flow before being sprayed out and is atomized and sprayed out through the nozzle orifice. This can enhance the atomization intensity and improve the droplet refinement and uniformity, making the spray cone and spray width more stable and the coverage more uniform. At the same time, it is beneficial to obtain a more consistent spray output effect under the same gas supply conditions.

[0015] Furthermore, the swirling element includes a fixed base and a swirling ball. A spherical cavity is formed within the fixed base, and the fixed base is provided with an inlet window and an outlet window communicating with the spherical cavity. The swirling ball is fixedly disposed within the spherical cavity and cannot rotate relative to the fixed base. A first swirling channel is formed on the swirling ball. The inlet window communicates with the gas-liquid inlet and with the first swirling channel, and the outlet window communicates with the atomizing cavity and with the first swirling channel.

[0016] By employing a swirling element consisting of a fixed base and a non-rotatable swirling ball within the atomizing nozzle, and forming a spherical cavity within the fixed base with an inlet window and an outlet window, the gas-liquid two-phase mixture enters through the gas-liquid inlet and then passes through the inlet window into the first swirling channel of the swirling ball, where it obtains a stable tangential velocity component. The mixture then enters the atomization chamber through the outlet window, forming a swirling flow field. This achieves stable establishment and repeated output of the swirling flow under conditions of simple structure and reliable assembly positioning, reducing channel alignment deviations and operating condition fluctuations caused by moving parts, and improving the stability of the atomization process, spray consistency, and the overall reliability and durability of the machine.

[0017] Furthermore, the inner wall of the first swirl channel is provided with at least one guide rib, which extends along the axial direction of the first swirl channel to guide the gas-liquid two-phase mixed flow flowing through the first swirl channel and enhance the tangential velocity.

[0018] By setting at least one axially extending guide rib on the inner wall of the first swirling channel, the gas-liquid two-phase mixed flow in the channel is guided and its tangential velocity is enhanced. This can improve the swirling intensity and stability of the flow entering the atomization chamber, making the atomization process more complete, the droplet refinement effect more significant, and the spray distribution more uniform, thereby improving the consistency and repeatability of the atomization output.

[0019] Furthermore, the inner wall of the spherical cavity is provided with a plurality of support ribs at intervals. One end of the support rib is connected to the inner wall of the spherical cavity, and the other end of the support rib is connected to the swirling ball to support the swirling ball and limit the displacement of the swirling ball relative to the fixed seat.

[0020] By setting multiple support ribs at intervals on the inner wall of the spherical cavity and connecting the support ribs to the inner wall of the spherical cavity and the swirling ball, the swirling ball can be provided with multi-point support and limit, so that the swirling ball can maintain a stable spatial position and posture during operation. This reduces the impact, vibration or displacement and shaking caused by assembly tolerance of the gas-liquid two-phase mixed flow, thereby ensuring a stable and consistent connection between the inlet window, the first swirling channel and the outlet window, reducing the fluctuation of swirling intensity and uneven atomization caused by flow channel deviation, and improving the stability and repeatability of spray output as well as the structural reliability and service life of the nozzle assembly.

[0021] Furthermore, the liquid guiding device includes a liquid guiding seat and a plurality of comb teeth, wherein a liquid separating chamber is formed within the liquid guiding seat; the liquid guiding inlet and at least one of the liquid guiding outlets are opened in the liquid guiding seat and are respectively connected to the liquid separating chamber; the plurality of comb teeth are spaced apart on the side of the liquid guiding seat near the liquid guiding outlet.

[0022] By setting a dispensing chamber within the liquid distribution seat and connecting the liquid inlet and at least one liquid outlet to the dispensing chamber, the treatment solution can be buffered and distributed, allowing it to be output from multiple liquid outlets at a more uniform flow rate / spray. Simultaneously, several comb teeth are spaced apart on the liquid outlet side of the liquid distribution seat. During scalp care, the comb teeth can part the hair and create guiding gaps, making it easier for the sprayed treatment solution to penetrate the hair strands and reach the scalp surface. This solves the problems of existing scalp care processes where the treatment solution is easily blocked by hair, has difficulty reaching the scalp, and tends to accumulate on the hair surface, resulting in uneven application and low efficiency. This improves the scalp reach rate, coverage uniformity, and stability of the treatment effect.

[0023] Furthermore, the one-way gas replenishment valve is a silicone duckbill valve, the bottle mouth connection cavity is provided with a gas replenishment hole, the silicone duckbill valve is disposed at the gas replenishment hole and communicates with the gas replenishment hole; the silicone duckbill valve has an inlet end and an outlet end, the inlet end communicates with the outside, and the outlet end communicates with the inside of the liquid storage bottle, so that outside gas enters the liquid storage bottle through the gas replenishment hole and the silicone duckbill valve and prevents the gas and / or liquid in the liquid storage bottle from flowing back to the outside.

[0024] By setting the one-way air supply valve as a silicone duckbill valve and connecting it to the air supply hole of the bottle nozzle connection cavity, the inlet end of the duckbill valve is connected to the outside and the outlet end is connected to the inside of the liquid storage bottle. During the liquid dispensing process, the gas volume inside the bottle can be automatically compensated, maintaining the pressure inside the bottle at a state suitable for continuous liquid dispensing. At the same time, the one-way check valve's one-way backflow characteristic prevents the gas and / or liquid inside the bottle from flowing back and leaking to the outside. This solves the problems of existing devices that are prone to liquid dispensing attenuation or interruption due to the accumulation of negative pressure inside the bottle during continuous dispensing, as well as the problems of backflow leakage and contamination that easily occur when the device is being carried, tilted, or stopped. This improves the continuity, stability, and safety of spray output.

[0025] Furthermore, the pneumatically controlled atomization inlet device also includes a first pressure sensor, a second pressure sensor, and a third pressure sensor. The first pressure sensor is located at the gas inlet of the ejector mixing assembly, the second pressure sensor is located at the mixing outlet of the ejector mixing assembly, and the third pressure sensor is located at the liquid inlet. The first pressure sensor, the second pressure sensor, and the third pressure sensor are electrically connected to the controller, and the controller adjusts the operating parameters of the air pump based on the detection signals from the first pressure sensor, the second pressure sensor, and the third pressure sensor.

[0026] By installing a first pressure sensor, a second pressure sensor, and a third pressure sensor at the gas inlet, mixing outlet, and liquid inlet of the ejector mixing component, respectively, and electrically connecting them to the controller, the controller can acquire pressure information on the gas supply status, ejector mixing status, and liquid delivery status in real time. Based on this, the controller can dynamically adjust the operating parameters of the air pump, thereby solving the technical problems of existing pneumatic atomizing devices, such as unstable negative pressure liquid absorption, flow drift, inconsistent spray volume, and fluctuations in atomization quality, when the liquid viscosity changes, the path resistance fluctuates, or the usage posture changes. This results in more stable spray output, more consistent atomization effect, and higher repeatability.

[0027] The beneficial effects of this invention are as follows:

[0028] This invention establishes negative pressure for liquid aspiration through a pneumatic ejection method using an air pump and an ejector mixing assembly. Under the action of a high-speed jet at the throat, it achieves simultaneous liquid aspiration and gas-liquid two-phase mixing, allowing care solutions, essential oils, etc., in the storage bottle to be stably discharged without mechanical pressing. Combined with the detachable sealing connection of the bottle nozzle and the one-way air replenishment structure, it can continuously replenish air to the storage bottle during the aspiration process, maintaining the pressure difference inside the bottle and the continuity of liquid output, while reducing the risks of backflow and leakage, and improving the safety and reliability of use.

[0029] This invention features a normally closed solenoid valve installed between the liquid channel and the inlet, which is controlled by a controller and an air pump to open / close, ensuring that the liquid channel is only open during spray operation. This effectively suppresses leakage, backflow, and contamination caused by gravity, residual pressure, or attitude changes during shutdown or non-operation.

[0030] This invention provides an atomizing nozzle at the liquid outlet and a swirling element within the atomizing chamber, enabling the gas-liquid two-phase mixture entering the atomizing chamber to achieve a tangential velocity and form a stable swirling flow field. This, in turn, achieves more thorough atomization and breakup at the nozzle, improving droplet refinement and spray uniformity.

[0031] This invention employs a swirl component structure consisting of a fixed base and a non-rotatable swirl sphere. Stable swirl is achieved through a closed flow channel consisting of an inlet window, a first swirl channel, and an outlet window. The guide ribs on the inner wall of the first swirl channel further enhance the tangential velocity component. The swirl sphere is supported and limited by multiple support ribs on the inner wall of the spherical cavity, thereby improving the consistency of swirl establishment, impact resistance, and repeatability of atomization output.

[0032] The present invention provides a liquid guiding device with a liquid distribution chamber to achieve buffering, even flow and distribution, and a comb structure is provided on the side of the liquid guiding seat near the liquid guiding outlet. In use scenarios such as scalp care, the comb structure can part the hair to form a guiding gap, thereby improving the efficiency and coverage of the spray reaching the target area. Attached Figure Description

[0033] Figure 1 This is a schematic diagram of a pneumatically controlled atomizing inlet device.

[0034] Figure 2 This is another schematic diagram of a pneumatically controlled atomizing inlet device.

[0035] Figure 3 This is a cross-sectional view of a pneumatically controlled atomizing inlet device.

[0036] Figure 4 for Figure 3 Enlarged view of part A.

[0037] Figure 5 This is a cross-sectional view of the liquid outlet.

[0038] Figure 6 This is a cross-sectional view of the atomizing nozzle.

[0039] Figure 7 This is a schematic diagram showing the separation of the liquid storage bottle and the casing.

[0040] Figure 8 This is a schematic diagram of a pneumatically controlled atomizing inlet device (excluding the housing). Detailed Implementation

[0041] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0042] Implementation examples, in conjunction with Figures 1 to 8 As shown, a pneumatically controlled atomizing device includes a housing 1, a liquid guiding device 2, an air pump 3, a controller 4, and an ejector mixing assembly 5. The housing 1 has a nozzle connection cavity 11, which is used for detachable and sealed connection with the nozzle 601 of a liquid storage bottle 60. The nozzle connection cavity 11 is provided with a one-way gas replenishment valve, which connects the outside to the inside of the liquid storage bottle 60 to replenish the liquid storage bottle 60 with gas. The ejector mixing assembly 5 has a gas inlet 51, an intake port 52, and a mixing outlet 53, and includes a gas nozzle 54, a throat 55, and a diffuser section 56 connected in sequence. The gas inlet 51 is connected to the gas nozzle 54, the intake port 52 is connected to the low-pressure area of ​​the throat 55, and the mixing outlet 53 is connected to the diffuser section 56. The nozzle connection cavity 11 is provided with a liquid channel 111, which is connected to the intake port 52 of the ejector mixing assembly 5. The liquid guiding device 2 is disposed on the housing 1. The liquid guiding device 2 includes a liquid guiding inlet 21 and at least one liquid guiding outlet 22. The liquid guiding inlet 21 is connected to the mixing outlet 53 of the ejector mixing assembly 5. An atomizing nozzle 6 is disposed at the liquid guiding outlet 22. The air pump 3 is disposed inside the housing 1. The exhaust port of the air pump 3 is connected to the gas inlet 51 of the ejector mixing assembly 5. The controller 4 is disposed on the housing 1 and is used to drive the air pump 3 to start and stop. When the air pump 3 is started, the gas is ejected through the gas nozzle 54 to form a high-speed jet and generate negative pressure at the throat 55, thereby attracting the liquid in the storage bottle 60 into the ejector mixing assembly 5 through the suction port 52 and mixing with the gas. The mixed gas-liquid two-phase flow flows through the mixing outlet 53 into the liquid guiding inlet 21 and is atomized and output by the atomizing nozzle 6.

[0043] Furthermore, a solenoid valve 100 is provided between the liquid channel 111 and the suction port 52 of the ejector mixing assembly 5. The solenoid valve 100 is a normally closed solenoid valve. The solenoid valve 100 has a first port and a second port. The first port is connected to the liquid channel 111, and the second port is connected to the suction port 52.

[0044] The air pump 3 and the solenoid valve 100 are electrically connected to the controller 4. The controller 4 is used to drive the solenoid valve 100 to open when the air pump 3 is started, and to drive the solenoid valve 100 to close when the air pump 3 is stopped, so that the liquid in the storage bottle 60 enters the inlet 52 through the solenoid valve 100 only when the air pump 3 is in the spray working state.

[0045] Furthermore, it also includes an air pipe 200 and a mixing flow delivery pipe 300. One end of the air pipe 200 is connected to the exhaust port of the air pump 3, and the other end of the air pipe 200 is connected to the gas inlet 51 of the ejector mixing assembly 5. One end of the mixing flow delivery pipe 300 is connected to the mixing outlet 53 of the ejector mixing assembly 5, and the other end of the mixing flow delivery pipe 300 is connected to the liquid guiding inlet 21 of the liquid guiding device 2. The housing 1 is provided with an air inlet that communicates with the outside. The air inlet is connected to the air inlet of the air pump 3, and the air inlet is provided with a barrier to prevent liquid from entering the air inlet of the air pump 3.

[0046] Further, the atomizing nozzle 6 includes a nozzle body 7 and a swirling element 8. An atomizing cavity 71 is formed inside the nozzle body 7. The upper end of the nozzle body 7 is provided with a gas-liquid inlet 72 communicating with the atomizing cavity 71, and the lower end of the nozzle body 7 is provided with a spray hole 73 communicating with the atomizing cavity 71. The swirling element 8 is disposed inside the atomizing cavity 71 and located between the gas-liquid inlet 72 and the spray hole 73, and is used to make the gas-liquid two-phase mixed flow entering the atomizing cavity 71 through the gas-liquid inlet 72 form a swirling flow and then be atomized and sprayed out through the spray hole 73. The liquid guide outlet 22 is connected to the gas-liquid inlet 72.

[0047] Furthermore, the swirling element 8 includes a fixed base 81 and a swirling ball 82. A spherical cavity 83 is formed inside the fixed base 81. The fixed base 81 is provided with an inlet window 84 and an outlet window 85 communicating with the spherical cavity 83. The swirling ball 82 is fixedly disposed inside the spherical cavity 83 and cannot rotate relative to the fixed base 81. A first swirling channel 86 is opened on the swirling ball 82. The inlet window 84 communicates with the gas-liquid inlet 72 and with the first swirling channel 86. The outlet window 85 communicates with the atomizing cavity 71 and with the first swirling channel 86.

[0048] Furthermore, the inner wall of the first swirl channel 86 is provided with at least one guide rib 861, which extends along the axial direction of the first swirl channel 86 to guide the gas-liquid two-phase mixed flow flowing through the first swirl channel 86 and enhance the tangential velocity.

[0049] Furthermore, the inner wall of the spherical cavity 83 is provided with a plurality of support ribs 87 at intervals. One end of the support rib 87 is connected to the inner wall of the spherical cavity 83, and the other end of the support rib 87 is connected to the swirling ball 82 to support the swirling ball 82 and limit the displacement of the swirling ball 82 relative to the fixed seat 81.

[0050] Furthermore, the liquid guiding device 2 includes a liquid guiding seat 23 and a plurality of comb teeth 24, wherein a liquid separating chamber is formed in the liquid guiding seat 23; the liquid guiding inlet 21 and at least one of the liquid guiding outlets 22 are opened in the liquid guiding seat 23 and are respectively connected to the liquid separating chamber; the plurality of comb teeth 24 are spaced apart on the side of the liquid guiding seat 23 near the liquid guiding outlet 22.

[0051] Furthermore, the one-way gas replenishment valve is a silicone duckbill valve 10, and the bottle mouth connection cavity 11 is provided with a gas replenishment hole 20. The silicone duckbill valve 10 is disposed at the gas replenishment hole 20 and communicates with the gas replenishment hole 20. The silicone duckbill valve 10 has an inlet end and an outlet end. The inlet end communicates with the outside, and the outlet end communicates with the inside of the liquid storage bottle 60, so that outside gas enters the liquid storage bottle 60 through the gas replenishment hole 20 and the silicone duckbill valve 10 and prevents the gas and / or liquid in the liquid storage bottle 60 from flowing back to the outside.

[0052] Furthermore, the pneumatically controlled atomization inlet device also includes a first pressure sensor, a second pressure sensor, and a third pressure sensor. The first pressure sensor is located at the gas inlet 51 of the ejector mixing assembly 5, the second pressure sensor is located at the mixing outlet 53 of the ejector mixing assembly 5, and the third pressure sensor is located at the liquid inlet 21. The first pressure sensor, the second pressure sensor, and the third pressure sensor are electrically connected to the controller 4, and the controller 4 adjusts the operating parameters of the air pump 3 according to the detection signals of the first pressure sensor, the second pressure sensor, and the third pressure sensor.

[0053] Furthermore, a charging port 30 is provided on the side wall of the housing 1, and a storage battery 40 is provided inside the housing 1. The charging port 30 is electrically connected to the storage battery 40 to charge the storage battery 40. The storage battery 40 is electrically connected to the controller 4 to supply power to the controller 4 and the air pump 3, normally closed solenoid valve, first pressure sensor, second pressure sensor and third pressure sensor electrically connected to the controller 4.

[0054] A switch 50 is provided on the side wall of the housing 1 at the position corresponding to the controller 4. The switch 50 is electrically connected to the controller 4 and is configured to control the start and stop of the controller 4.

[0055] The operating parameters of the air pump 3 may include one or more of the following parameters: the speed of the air pump 3 motor, the driving voltage, the driving current, the PWM duty cycle, the operating frequency, and / or the start-stop cycle. The controller 4 may perform closed-loop adjustment of the above operating parameters based on the detection signals of the first pressure sensor, the second pressure sensor, and the third pressure sensor to achieve stable control of the gas supply, ejector negative pressure, and spray output.

[0056] For example, the controller 4 can adjust the speed of the air pump 3 by changing the PWM duty cycle or drive voltage of the air pump 3 motor, thereby changing the gas flow rate and pressure.

[0057] The working principle is as follows:

[0058] First, the nozzle 601 of an existing commercially available liquid storage bottle 60 containing liquids such as care solutions and essential oils is detachably and sealed to the nozzle connection cavity 11 on the housing 1, so that the liquid storage bottle 60 is connected to the liquid channel 111 and kept sealed. During the liquid extraction process, the one-way air supply valve in the nozzle connection cavity 11 supplies air to the inside of the liquid storage bottle 60 in one direction to compensate for changes in the bottle's internal volume and maintain continuous liquid extraction, while preventing backflow and / or leakage of gas and / or liquid from the bottle.

[0059] Subsequently, the user presses switch 50 to start controller 4, which in turn drives air pump 3 to start. Air pump 3 draws in gas from the outside through the air inlet on housing 1 as a gas source. The barrier at the air inlet prevents liquid from entering the air inlet of air pump 3. The gas output from air pump 3 enters the gas inlet 51 of ejector mixing assembly 5 through air pipe 200 and is accelerated and ejected by gas nozzle 54, forming a high-speed jet at throat 55, creating negative pressure in the low-pressure area of ​​throat 55. At the same time, controller 4 synchronously drives normally closed solenoid valve to open, allowing liquid in storage bottle 60 to enter the suction port 52 of ejector mixing assembly 5 through bottle nozzle connection cavity 11, liquid channel 111 and solenoid valve 100 under negative pressure. There, it is sheared, broken and mixed with high-speed airflow in throat 55 area, and completes energy conversion and pressure recovery in diffuser section 56, forming a relatively stable gas-liquid two-phase mixed flow, which is output from mixing outlet 53.

[0060] The gas-liquid two-phase mixed flow enters the liquid inlet 21 of the liquid guiding device 2 through the mixed flow conveying pipe 300, and then enters the liquid distribution chamber inside the liquid guiding seat 23 for buffering and flow equalization before being distributed to at least one liquid outlet 22, and then conveyed to the atomizing nozzle 6 at the corresponding liquid outlet 22. The gas-liquid two-phase mixed flow enters the atomizing chamber 71 inside the nozzle body 7 through the gas-liquid inlet 72 of the atomizing nozzle 6, and obtains a tangential velocity component under the action of the swirling element 8 to form a swirling flow field. At the same time, it is further mixed and broken up in the atomizing chamber 71, and finally sprayed out from the nozzle 73 to form fine droplets, realizing uniform spray introduction to the target area.

[0061] In the embodiment of the swirling component 8 consisting of a fixed base 81 and a swirling ball 82, the swirling ball 82 is fixedly disposed in the spherical cavity 83 and cannot rotate relative to the fixed base 81. The gas-liquid two-phase mixed flow enters the spherical cavity 83 through the inlet window 84 and then enters the first swirling channel 86 of the swirling ball 82. In the first swirling channel 86, it is guided to obtain a stable tangential velocity component, and then enters the atomization chamber 71 through the outlet window 85 to form a swirling flow. The guide ribs 861 provided on the inner wall of the first swirling channel 86 are used to guide the gas-liquid two-phase mixed flow flowing in the channel and enhance the tangential velocity component, thereby strengthening the establishment and stability of the swirling flow. The multiple support ribs 87 provided at intervals on the inner wall of the spherical cavity 83 provide multi-point support and limit the swirling ball 82, restricting the displacement of the swirling ball 82 relative to the fixed base 81, ensuring that the connection relationship between the inlet window 84, the first swirling channel 86 and the outlet window 85 is stable and consistent, and improving the repeatability and consistency of the spray output.

[0062] When it is necessary to stop working, the user presses switch 50 again, and controller 4 triggers shutdown. Controller 4 shuts down air pump 3 and simultaneously closes solenoid valve 100 to cut off the liquid channel, so that the negative pressure liquid suction process is terminated and the liquid cannot continue to enter the suction port 52 under the action of gravity, thereby reducing the risk of leakage, backflow and contamination during shutdown, and helping to maintain the cleanliness of the nozzle and channel.

[0063] When used for scalp and other areas, the comb teeth 24 on the side of the liquid guide seat 23 near the liquid outlet 22 can part the hair and form a guide gap during operation, making it easier for the spray output from the liquid outlet 22 to pass through the hair and reach the scalp surface, thereby improving the reach and coverage of the target area.

[0064] In the embodiment configured with a first pressure sensor, a second pressure sensor, and a third pressure sensor, the controller 4 acquires pressure detection signals at the gas inlet 51, the mixing outlet 53, and the liquid inlet 21 of the ejector mixing assembly 5, and adjusts the operating parameters of the air pump 3 accordingly, so that the ejector negative pressure establishment, gas-liquid mixing and delivery, and spray output remain relatively stable and consistent under different path resistances, different liquid viscosities, or different usage postures.

[0065] The terms "first," "second," etc., used in this invention do not indicate any order, quantity, or importance, but are merely for distinction. The terms "a," "an," etc., used in this invention do not indicate a limitation on quantity, but rather indicate the existence of at least one of the mentioned objects. The terms indicating direction or location used in this invention, such as "top," "bottom," "side," "longitudinal," "transverse," "middle," "center," "outer," "inner," "horizontal," "vertical," "left," "right," "above," "below," etc., reflect relative positions, not absolute positions. The above-described embodiments merely illustrate several implementations of the present invention, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of this invention. It should be noted that those skilled in the art can make several modifications and improvements without departing from the concept of the present invention, and these all fall within the protection scope of this invention. Therefore, the protection scope of this invention should be determined by the appended claims.

Claims

1. A pneumatically controlled atomizing introduction device, comprising a housing, a liquid guiding device, a gas pump, a controller and an ejecting mixing assembly, characterized in that: The housing is provided with a bottle nozzle connection cavity for detachable and sealed connection with the bottle nozzle of the liquid storage bottle; the bottle nozzle connection cavity is provided with a one-way gas replenishment valve, which connects the outside to the inside of the liquid storage bottle to replenish the liquid storage bottle with gas; the ejector mixing assembly has a gas inlet, an intake port, and a mixing outlet, and includes a gas nozzle, a throat, and a diffuser section connected in sequence, wherein the gas inlet is connected to the gas nozzle, the intake port is connected to the low-pressure area of ​​the throat, and the mixing outlet is connected to the diffuser section; the bottle nozzle connection cavity is provided with a liquid channel, which is connected to the intake port of the ejector mixing assembly; the liquid guiding device is disposed on the housing, and the liquid guiding device includes a liquid guiding inlet and at least one liquid guiding outlet, the liquid guiding inlet is connected to the mixing outlet of the ejector mixing assembly, and an atomizing nozzle is disposed at the liquid guiding outlet; the air pump is disposed in the housing, and the exhaust port of the air pump is connected to the gas inlet of the ejector mixing assembly; The controller is mounted on the housing and is used to drive the air pump to start and stop. When the air pump is started, the gas is ejected through the gas nozzle to form a high-speed jet and generate negative pressure at the throat, thereby attracting the liquid in the storage bottle into the ejector mixing assembly through the suction port and mixing with the gas. The mixed gas-liquid two-phase flow flows through the mixing outlet into the liquid inlet and is atomized and output by the atomizing nozzle. The atomizing nozzle includes a nozzle body and a swirling element. An atomizing chamber is formed within the nozzle body. The upper end of the nozzle body is provided with a gas-liquid inlet communicating with the atomizing chamber, and the lower end of the nozzle body is provided with a spray hole communicating with the atomizing chamber. The swirling element is disposed within the atomizing chamber and located between the gas-liquid inlet and the spray hole, and is used to atomize the gas-liquid two-phase mixed flow entering the atomizing chamber through the gas-liquid inlet into a swirling flow before it is atomized and sprayed out through the spray hole. The liquid guide outlet is connected to the gas-liquid inlet. The swirling element includes a fixed base and a swirling ball. A spherical cavity is formed inside the fixed base. The fixed base is provided with an inlet window and an outlet window that communicate with the spherical cavity. The swirling ball is fixedly disposed inside the spherical cavity and cannot rotate relative to the fixed base. A first swirling channel is opened on the swirling ball. The inlet window communicates with the gas-liquid inlet and with the first swirling channel. The outlet window communicates with the atomizing cavity and with the first swirling channel.

2. The pneumatically controlled atomization introduction device according to claim 1, characterized in that A solenoid valve is provided between the liquid channel and the suction port of the ejector mixing assembly. The solenoid valve is a normally closed solenoid valve. The solenoid valve has a first port and a second port. The first port is connected to the liquid channel, and the second port is connected to the suction port. The air pump and the solenoid valve are electrically connected to the controller. The controller is used to drive the solenoid valve to open when the air pump is started and to drive the solenoid valve to close when the air pump is stopped, so that the liquid in the storage bottle enters the inlet through the solenoid valve only when the air pump is in the spray working state.

3. Aerodynamically controlled atomization introduction device according to claim 1 or 2, characterized in that It also includes an air tube and a mixing flow delivery tube. One end of the air tube is connected to the exhaust port of the air pump, and the other end of the air tube is connected to the gas inlet of the ejector mixing assembly. One end of the mixing flow delivery tube is connected to the mixing outlet of the ejector mixing assembly, and the other end of the mixing flow delivery tube is connected to the liquid guiding inlet of the liquid guiding device. The housing is provided with an air inlet that communicates with the outside. The air inlet is connected to the air inlet of the air pump, and a barrier is provided at the air inlet to prevent liquid from entering the air inlet of the air pump.

4. The pneumatically controlled atomization introduction device of claim 1, wherein: The inner wall of the first swirl channel is provided with at least one guide rib, which extends along the axial direction of the first swirl channel to guide the gas-liquid two-phase mixed flow flowing through the first swirl channel and enhance the tangential velocity.

5. The pneumatically controlled atomization introduction device of claim 1, wherein: The inner wall of the spherical cavity is provided with a plurality of support ribs at intervals. One end of the support rib is connected to the inner wall of the spherical cavity, and the other end of the support rib is connected to the swirling ball to support the swirling ball and limit the displacement of the swirling ball relative to the fixed seat.

6. The pneumatically controlled atomization introduction device of claim 1, wherein: The liquid guiding device includes a liquid guiding seat and a plurality of comb teeth, wherein a liquid separating chamber is formed in the liquid guiding seat; the liquid guiding inlet and at least one of the liquid guiding outlets are opened in the liquid guiding seat and are respectively connected to the liquid separating chamber; the plurality of comb teeth are spaced apart on the side of the liquid guiding seat near the liquid guiding outlet.

7. The pneumatically controlled atomization introduction device of claim 1, wherein: The one-way gas replenishment valve is a silicone duckbill valve. The bottle mouth connection cavity is provided with a gas replenishment hole. The silicone duckbill valve is located at the gas replenishment hole and communicates with the gas replenishment hole. The silicone duckbill valve has an inlet end and an outlet end. The inlet end communicates with the outside and the outlet end communicates with the inside of the liquid storage bottle, so that outside gas enters the liquid storage bottle through the gas replenishment hole and the silicone duckbill valve and prevents the gas and / or liquid in the liquid storage bottle from flowing back to the outside.

8. The pneumatic control atomizing introduction device according to claim 2, characterized in that: The pneumatically controlled atomizing inlet device further includes a first pressure sensor, a second pressure sensor, and a third pressure sensor. The first pressure sensor is located at the gas inlet of the ejector mixing assembly, the second pressure sensor is located at the mixing outlet of the ejector mixing assembly, and the third pressure sensor is located at the liquid inlet. The first pressure sensor, the second pressure sensor, and the third pressure sensor are electrically connected to the controller, and the controller adjusts the operating parameters of the air pump based on the detection signals from the first pressure sensor, the second pressure sensor, and the third pressure sensor.

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