CN107744909B

CN107744909B - Atomizer

Info

Publication number: CN107744909B
Application number: CN201711135575.4A
Authority: CN
Inventors: 胡书云
Original assignee: Shenzhen Aslon Technology Co ltd
Current assignee: Shenzhen Aslon Technology Co ltd
Priority date: 2017-11-16
Filing date: 2017-11-16
Publication date: 2023-10-31
Anticipated expiration: 2037-11-16
Also published as: CN107744909A

Abstract

The invention discloses an atomizer, which comprises a bottle body, a spray head, an air inlet conduit and a one-way valve structure. The inside of bottle is equipped with the holding chamber that is used for the holding to wait to atomize liquid, and the shower nozzle is connected with the bottle, and seals the holding chamber, and the air inlet has been seted up to the shower nozzle. The air inlet conduit is arranged on the spray head, the first end of the air inlet conduit is communicated with the air inlet, and the second end of the air inlet conduit stretches into the accommodating cavity. The one-way valve structure includes a valve inlet and a valve outlet, fluid is allowed to flow from the valve inlet to the valve outlet without reverse flow, and the valve inlet is in communication with the second end. The valve inlet of the one-way valve structure is communicated with the second end of the air inlet conduit, only gas is allowed to flow into the accommodating cavity from the valve outlet through the valve inlet, and liquid to be atomized in the accommodating cavity is not allowed to flow into the valve inlet and the air inlet conduit reversely from the valve outlet, so that the liquid to be atomized can be prevented from leaking out of the atomizer from the air inlet conduit, other objects are prevented from being polluted, the anti-leakage performance of the atomizer is improved, and the use experience of a user is improved.

Description

Atomizer

Technical Field

The invention relates to the technical field of atomizing equipment, in particular to an atomizer.

Background

The atomizer is equipment for atomizing liquid, and the diffusivity of fogdrops formed after the liquid is atomized is very good, and the atomizer has application in a plurality of fields such as medical equipment, agricultural field, industrial equipment, aromatherapy instrument and the like. For example, nebulizers can be used in the medical field, which mix water-soluble liquid medicine with water to form droplets that are sprayed into the airway of a patient and inhaled by the patient to directly act on the lesion. In aromatherapy instruments, such as aromatherapy machines, water molecules and dissolved plant essential oil can be decomposed into mist droplets with the diameter of 0.1-5 microns to be dispersed in surrounding air, so that the air is full of fragrance, the humidity of the air can be increased, the air can be purified, the effect of aromatherapy is achieved, and the aromatherapy machine can be widely applied to families, offices or automobiles.

Aromatherapy machines generally comprise a bottle and a spray head. The bottle body is provided with a containing cavity for containing plant essential oil. The spray head is provided with an air inlet and an air outlet, the air inlet is communicated with the accommodating cavity through an air inlet conduit, and the air outlet is communicated with the accommodating cavity through an air outlet conduit. The spray head seals the accommodating cavity and sprays the plant essential oil through the exhaust hole after atomizing. The prior aromatherapy machine is generally not provided with a corresponding leakage-proof structure at the air inlet duct, and when the aromatherapy machine is in a dumping state, essential oil can leak from the air inlet duct, so that the essential oil is wasted, and other objects can be polluted.

Disclosure of Invention

The invention aims to provide an atomizer which can prevent liquid from leaking from an air inlet conduit.

To achieve the purpose, the invention adopts the following technical scheme:

an atomizer, comprising:

the bottle body is internally provided with a containing cavity for containing liquid to be atomized;

the spray head is connected with the bottle body, seals the accommodating cavity and is provided with an air inlet;

the air inlet guide pipe is arranged on the spray head, the first end of the air inlet guide pipe is communicated with the air inlet, and the second end of the air inlet guide pipe stretches into the accommodating cavity;

the one-way valve structure includes a valve inlet and a valve outlet, fluid is not capable of reverse flow from the valve inlet to the valve outlet, and the valve inlet is in communication with the second end of the intake conduit.

Further, the check valve structure includes:

a valve body having a valve inlet and a valve outlet disposed thereon;

the flexible diaphragm is positioned at the outer side of the valve outlet, part of the flexible diaphragm is connected with the valve body, and when the flexible diaphragm is abutted to the valve outlet, the valve outlet can be closed.

Further, one end of the valve body is spherical, a first plane is arranged on the outer surface of the spherical shape, the valve outlet is located on the first plane, and the flexible diaphragm is abutted with the first plane to close the valve outlet.

Further, the number of the first planes is at least two, each first plane is provided with a valve outlet, and each valve outlet is provided with a flexible diaphragm.

Further, the number of the first planes is two, the two first planes are arranged oppositely, the valve body is provided with a diaphragm mounting hole for communicating the two first planes, the middle part of the flexible diaphragm is positioned in the diaphragm mounting hole, and the two sides of the flexible diaphragm are exposed out of the diaphragm mounting hole and can be abutted to the adjacent first planes.

Wherein, ultrasonic air pump is installed to the shower nozzle, and the inlet end and the air inlet intercommunication of ultrasonic air pump, the end of giving vent to anger and inlet conduit intercommunication.

Further, the air inlet is filled with the filtering noise reduction component.

Further, a buffer part is arranged between the ultrasonic air pump and the mounting surface of the spray head.

Wherein, the atomizer still includes exhaust pipe, has seted up the gas vent on the shower nozzle, and exhaust pipe's one end and gas vent intercommunication, the other end and accommodation chamber intercommunication.

Further, the number of the exhaust pipes is at least two.

Further, the exhaust port is provided with a leakage preventing member, and a plurality of through holes are formed in the leakage preventing member.

Further, the air outlet is provided with an electromagnetic valve, and the electromagnetic valve can close or open the air outlet.

The beneficial effects are that: the invention provides an atomizer which comprises a bottle body, a spray head, an air inlet conduit and a one-way valve structure. The inside of bottle is equipped with the holding chamber that is used for the holding to wait to atomize liquid, and the shower nozzle is connected with the bottle, and seals the holding chamber, and the air inlet has been seted up to the shower nozzle. The air inlet conduit is arranged on the spray head, the first end of the air inlet conduit is communicated with the air inlet, and the second end of the air inlet conduit stretches into the accommodating cavity. The one-way valve structure includes a valve inlet and a valve outlet, fluid is not in reverse flow communication from the valve inlet to the valve outlet, and the valve inlet is in communication with the second end of the intake conduit. The valve inlet of the one-way valve structure is communicated with the second end of the air inlet conduit, only gas is allowed to flow into the accommodating cavity from the valve outlet through the valve inlet, and liquid to be atomized in the accommodating cavity is not allowed to flow into the valve inlet and the air inlet conduit reversely from the valve outlet, so that the liquid to be atomized can be prevented from leaking out of the atomizer from the air inlet conduit, other objects are prevented from being polluted, the anti-leakage performance of the atomizer is improved, and the use experience of a user is also improved.

Drawings

Fig. 1 is a schematic structural view of an atomizer provided by the present invention.

Fig. 2 is an exploded view of the atomizer provided by the present invention.

Fig. 3 is an exploded view of a nebulizer (noise reduction features not shown) provided by the invention.

Fig. 4 is a cross-sectional view of the atomizer provided by the present invention.

Fig. 5 is a partial enlarged view at a of fig. 4.

Fig. 6 is a cross-sectional view of the upper half of the atomizer provided by the present invention.

Fig. 7 is an exploded view of a one-way valve structure of the atomizer provided by the present invention (noise reduction features not shown).

Fig. 8 is an assembly view of a check valve structure and an air inlet pipe of the atomizer provided by the invention.

Wherein:

1-bottle, 11-accommodation chamber, 12-screw interface, 2-shower nozzle, 21-air inlet, 22-air outlet, 220-buffer zone, 31-air inlet conduit, 32-air outlet conduit, 4-check valve structure, 41-valve body, 411-first plane, 412-diaphragm mounting hole, 42-valve inlet, 43-valve outlet, 44-flexible diaphragm, 5-ultrasonic air pump, 6-filtration noise reduction component, 7-buffer component, 81-leak protection piece, 82-solenoid valve, 91-housing, 92-outer cover, 910-observation area 921-air inlet hole, 93-PCB, 94-spring, 95-button, 96-pilot lamp.

Detailed Description

In order to make the technical problems solved, the technical scheme adopted and the technical effects achieved by the invention more clear, the technical scheme of the invention is further described below by a specific embodiment in combination with the attached drawings.

The embodiment of the invention provides an atomizer which can be used for an aromatherapy instrument, such as an aromatherapy machine, and the like, and can be used for atomizing plant essential oil and the like and then dispersing the plant essential oil into surrounding air to enable the air to be full of fragrance, so that the humidity of the air can be improved, the air can be purified, and the effect of aromatherapy can be achieved. Of course, the atomizer can also be used in other fields requiring atomization.

As shown in fig. 1 to 8, the atomizer of the present embodiment includes a bottle body 1 and a head 2. The bottle 1 is provided with a containing cavity 11 inside, and the containing cavity 11 is used for containing liquid to be atomized, such as plant essential oil. The spray head 2 is connected with the bottle body 1 and seals the accommodating cavity 11, and the spray head 2 is provided with an air inlet 21.

In order to protect the essential oil bottle and avoid the problem of fragmentation of the essential oil bottle caused by collision of the atomizer, the atomizer of the invention further comprises a shell 91 sleeved outside the bottle body 1, and the shell 91 and the outer cover 92 can be fixed in a buckling manner. The outer cover 92 is sleeved outside the spray head 2, and an air inlet 921 is formed in a position of the outer cover 92 corresponding to the air inlet 21 of the spray head 2, so that air can be conveniently introduced into the air inlet 21. The bottle 1 is internally arranged in the shell 91, and the side wall of the shell 91 can be provided with a strip-shaped groove for observing the volume of the liquid to be atomized in the bottle 1. A printed circuit board (Printed Circuit Board, PCB) 93 is also provided within the cover 92 for controlling operation of the atomizer. The cover 92 is also provided with a button 95 and an indicator light 96. The button 95 serves as a power switch and the indicator lamp 96 serves to indicate the operating state of the atomizer, and both the button 95 and the indicator lamp 96 are connected to the PCB 93. A spring 94 is provided under the button 95 for holding the button 95 in place after being pressed.

Further, the casing 91 is provided with an observation area 910, and when the bottle body of the bottle body 1 is transparent or semitransparent, a user can observe the condition of the liquid level of the essential oil in the bottle body 1 through the observation area 910, and when the essential oil in the bottle body 1 is insufficient, the user can timely add the essential oil. In this embodiment, the observation area 910 is two symmetrical hollow portions directly hollowed out on the housing 91. In other embodiments, the viewing area 910 may be a transparent area disposed on the housing 91. It will be appreciated that the atomizer need not include the housing 91, but may include only the outer cover 92, the spray head 2 and the bottle 1.

Further, the bottle body 1 and the spray head 2 are respectively provided with a threaded interface 12 corresponding to each other, and the bottle body 1 is connected with the spray head 2 through the threaded interface 12. When a user needs to replace the bottle body 1 or take down the bottle body 1 to inject essential oil, the bottle body 1 and the nozzle 2 can be separated only by rotating the nozzle 2; when the user needs to reload the bottle body 1, the user only needs to connect the bottle body 1 with the spray head 2 and rotate the spray head 2, so that the installation of the atomizer is finished, the operation is simple, the universality is strong, and the use is very convenient.

The nozzle 2 is provided with an air inlet duct 31, and in this embodiment, the air inlet duct 31 is fixed to a central region of the nozzle 2 and penetrates the nozzle 2. The first end of the air intake conduit 31 communicates with the air intake 21, the second end of the air intake conduit 31 extends into the receiving chamber 11, and a one-way valve structure 4 is provided at the second end. The one-way valve structure 4 includes a valve inlet 42 and a valve outlet 43, fluid being able to flow from the valve inlet 42 to the valve outlet 43 without reverse flow, the valve inlet 42 being in communication with the second end of the intake conduit 31.

When the atomizer is in operation, gas can enter from the gas inlet 21, pass through the first end of the gas inlet conduit 31, enter into the valve inlet 42 of the one-way valve structure 4 from the second end of the gas inlet conduit 31, and then flow into the accommodating cavity 11 of the bottle body 1 from the valve outlet 43. Because the one-way valve structure 4 only allows fluid to circulate unidirectionally, no matter whether the atomizer is in a working state or not, the liquid to be atomized in the accommodating cavity 11 of the bottle body 1 cannot reversely flow back into the valve inlet 42 of the one-way valve structure 4 and cannot leak to the outside of the atomizer through the air inlet guide pipe 31, so that other objects can be prevented from being polluted, the anti-leakage performance of the atomizer is improved, and the use experience of a user is also improved.

Specifically, in the present embodiment, the check valve structure 4 includes a valve body 41 and a flexible diaphragm 44, and a valve inlet 42 and a valve outlet 43 are provided on the valve body 41. The flexible diaphragm 44 is located outside the valve outlet 43, and a portion of the flexible diaphragm 44 is connected to the valve body 41 so that a portion of the flexible diaphragm 44 not connected to the valve body 41 forms a free end to automatically move. As gas enters the valve body 41 from the inlet conduit 31, the flexible diaphragm 44 is flushed away at the valve outlet 43 into the receiving chamber 11. When no gas flows in from the air inlet conduit 31, the flexible diaphragm 44 is pressed by the pressure of the liquid to be atomized and is abutted against the valve outlet 43, and the flexible diaphragm 44 can seal the valve outlet 43 to prevent the liquid to be atomized from entering the valve outlet 43. The one-way valve structure 4 has simple structure, good sealing effect and small air inlet resistance. The flexible membrane 44 may be made of rubber or other material, so that the flexible membrane 44 has better flexibility, and is easily attached to the valve outlet 43 to seal the valve outlet 43. Since the flexible membrane 44 needs to be in contact with the liquid to be atomized, the material of the flexible membrane 44 also needs to be adjusted accordingly according to the kind of the liquid to be atomized. If the liquid to be atomized has certain corrosiveness and can affect the rubber, corresponding materials need to be adjusted, so that the influence on the flexible membrane 44 is avoided, and the pollution of the flexible membrane 44 to the liquid to be atomized is also avoided.

In the present embodiment, one end of the valve body 41 is substantially spherical, and a first flat surface 411 is provided on the outer surface of the spherical shape, the valve outlet 43 is located on the first flat surface 411, and the flexible diaphragm 44 abuts against the first flat surface 411 to close the valve outlet 43. The spherical outer surface increases the contact area with the liquid to be atomized, which is advantageous for increasing the pressure to which the flexible membrane 44 is subjected, thereby enhancing the sealing effect of the flexible membrane 44 against the valve outlet 43. The first flat surface 411 is beneficial to keeping the valve outlet 43 flat, facilitating the sealing with the flexible diaphragm 44, and further improving the sealing effect. In order to reduce the intake resistance, two first flat surfaces 411 may be provided on the valve body 41, each first flat surface 411 being provided with a valve outlet 43, each valve outlet 43 being provided with a flexible diaphragm 44. The number of the first flat surfaces 411 may be more than two, and the larger the number of the first flat surfaces 411, the larger the total area of the valve outlet 43 is, which is advantageous in reducing the intake resistance. Of course, the more complicated the structure of the check valve 41 is at this time, and therefore, the number of the first flat surfaces 411 needs to be selected to be an appropriate value according to the actual situation.

In this embodiment, the length of the air inlet conduit 31 may exceed the height of the bottle body 1, so that the bottom of the valve body 41 may abut against the bottom of the accommodating cavity 1, thereby maximally utilizing the liquid in the accommodating cavity 1 and minimizing waste. The bottom of the accommodating cavity 1 is generally not a concave surface of a sphere, so the valve body 41 is arranged to be approximately spherical, the valve body 41 can be prevented from being completely abutted with the bottom of the accommodating cavity 1, a gap is formed between the valve body 41 and the bottom of the accommodating cavity 1, and the valve outlet 43 is prevented from being completely blocked, so that the use of the atomizer is prevented from being influenced.

In the present embodiment, the number of the first planes 411 is two, and the two first planes 411 are disposed opposite to each other. The valve body 1 is provided with a diaphragm mounting hole 412 which is communicated with the two first planes 411, the diaphragm mounting hole 412 is not communicated with the valve outlet 43, the middle part of the flexible diaphragm 44 is positioned in the diaphragm mounting hole 412, and the parts of the two sides of the flexible diaphragm exposed out of the diaphragm mounting hole 412 can be abutted against the adjacent first planes 411. The diaphragm mounting hole 412 is used for fixing the flexible diaphragm 44, and since two first planes 411 and two valve outlets 43 are provided, two opposite valve outlets 43 need to be respectively closed at two ends of the flexible diaphragm 44, and after the middle part of the flexible diaphragm 44 is arranged in the diaphragm mounting hole 412 in a penetrating manner, opposite forces are respectively applied to the middle part of the flexible diaphragm 44 by two sides of the flexible diaphragm 44 to be reduced. Therefore, the force with which the middle portion of the flexible diaphragm 44 is pulled by both sides to be separated from the diaphragm mounting hole 412 is small, and the flexible diaphragm 44 can be very firmly mounted in the diaphragm mounting hole 412.

Further, since one end of the valve body 1 is substantially spherical, the valve outlet 43 may be substantially circular or semicircular, the lateral width of the diaphragm mounting hole 412 may be set larger than the maximum width of the valve outlet 43, and the shape of both sides of the flexible diaphragm 44 is maintained to be identical to the shape of the corresponding valve outlet 43, in which case the maximum width of the flexible diaphragm 44 does not exceed the lateral width of the diaphragm mounting hole 412. During assembly, only one side of the flexible diaphragm 44 needs to pass through the diaphragm mounting hole 412 until the middle part of the flexible diaphragm 44 is positioned in the diaphragm mounting hole 412, and the assembly is simple in structure and convenient. Besides, the one-way valve structure 4 may have other structures besides the above-mentioned structure, for example, a corresponding tension spring may be provided on the inner side of the corresponding valve outlet, and the flexible diaphragm outside the valve outlet is pulled from the inside to be abutted inwards at the valve outlet, so as to further improve the tightness of the flexible diaphragm. Or the flexible diaphragm is replaced by a sealing ball, the valve outlet is set to be a round hole, a corresponding tension spring structure is arranged on the inner side of the valve outlet, and the tension spring can pull the sealing ball to be abutted on the round hole so as to seal the valve outlet. In a word, all that can realize keeping the unidirectional flow of fluid, reverse can not circulate, can avoid waiting to atomize liquid leakage outside the atomizer from the intake conduit.

In order to enhance the atomization effect, in this embodiment, an ultrasonic air pump 5 is installed inside the nozzle 2, the air inlet end of the ultrasonic air pump 5 is communicated with the air inlet 21, and the air outlet end is communicated with the air inlet conduit 31. The ultrasonic air pump 5 may be a piezoelectric air pump. When the gas enters the accommodating cavity 11 along the air inlet conduit 31 at the frequency of the ultrasonic wave and contacts with the liquid to be atomized, the liquid to be atomized is atomized under the cavitation of the ultrasonic wave. Cavitation refers to the vibration of micro bubble nuclei in a liquid under the action of ultrasonic waves, when the sound pressure reaches a certain value, the bubbles expand rapidly and then close suddenly, and shock waves are generated when the bubbles close. This series of dynamic processes of expansion, closure, oscillation, etc. is called cavitation. In cavitation, the liquid to be atomized can be atomized into nano-scale droplets, so that a good atomization effect is achieved.

The buffer part 7 is arranged below the ultrasonic air pump 5, and the buffer part 7 can be EVA (ethylene-vinyl acetate copolymer) foam or silica gel pad for relieving the impact generated by vibration when the ultrasonic air pump 5 works. Since the ultrasonic air pump 5 vibrates when in operation, noise is inevitably generated, and the impact of the vibration affects the service life of the atomizer. Therefore, the buffer part is arranged at the bottom of the ultrasonic air pump, so that the impact generated when the ultrasonic air pump 5 works can be effectively relieved, and the service life of the atomizer is prolonged.

For liquids with certain corrosiveness such as plant essential oil, the ultrasonic air pump 5 is matched with the air inlet pipe 31, so that the plant essential oil can be atomized, and the ultrasonic air pump 5 can be prevented from being corroded due to contact with the plant essential oil. And, ultrasonic wave air pump 5 itself is as the air pump, still inputs gas in the holding chamber 11 simultaneously, can increase the atmospheric pressure in the holding chamber 11, will be discharged by the fog drip after atomizing, no longer need set up fan or exhaust air pump alone, has further simplified the structure.

The atomizer further comprises an exhaust duct 32, the exhaust duct 32 is fixed with the spray head 2, the spray head 2 is provided with an exhaust port 22, one end of the exhaust duct 32 is communicated with the exhaust port 22, the other end of the exhaust duct 32 is communicated with the accommodating cavity 11, and atomized fog drops are discharged from the exhaust port 22 along the exhaust duct 32.

In the present embodiment, the atomizer has two exhaust ducts 32 arranged in parallel, but the number of the exhaust ducts 32 is not limited to two, and may be two or more. As shown in fig. 6, two exhaust ducts 32 are arranged side by side. When the atomizer outputs the essential oil mist, the plurality of exhaust air guide pipes 32 can disperse the pressure of the essential oil mist, and noise during mist output is reduced. In addition, since the liquid has surface tension, a plurality of finer exhaust ducts 32 are provided, and oil leakage caused by outflow of essential oil from the exhaust duct can be prevented more than a thicker exhaust duct.

Further, a buffer area 220 is disposed in the air outlet 22, the buffer area 220 is a space, and the essential oil mist is discharged from the accommodating cavity 11 to the buffer area 220 through the air outlet conduit 32, and then discharged and released to the outside of the air outlet 22 through the buffer area 220. The essential oil mist enters the wider buffer zone 220 from the narrower exhaust duct 32, the airflow sound becomes smaller, the buffer zone 220 is equivalent to a silencing chamber, and the noise of the essential oil mist output is further reduced. In addition, after the fine oil mist is buffered, the fine oil mist is diffused into the air, the phenomenon of intermittent spraying of the mist is avoided, the continuous mist spraying effect can be maintained, and better use experience is provided.

Further, the air inlet 21 is connected to an air inlet duct 31 for guiding air into the accommodating chamber 11, and the air inlet duct 31 extends to the bottom of the accommodating chamber 11, i.e. below the essential oil level in the essential oil bottle. After the air is sucked into the nozzle 2 through the air inlet 21 by the air ultrasonic pump 5, air is pumped into the essential oil through the air inlet conduit 31, so that the essential oil is atomized, and the essential oil mist is generated.

Further, a filtering noise reduction part 6 for filtering air entering the atomizer and reducing noise generated when air is introduced is provided at the air inlet 21, and the filtering noise reduction part 6 may include activated carbon fiber, foaming fiber or filtering noise reduction cotton.

According to the invention, the filtering noise reduction component 6 is arranged at the air inlet 21 of the atomizer, so that air entering the atomizer can be filtered, dust in the air is prevented from entering the accommodating cavity 11, essential oil is protected from being polluted, and noise generated when the ultrasonic air pump 5 sucks air from the air inlet 21 can be reduced.

In the present embodiment, in order to enhance the leakage preventing effect, a leakage preventing member 81 may be provided at the exhaust port 22, and a plurality of through holes may be formed in the leakage preventing member 81. The diameter of the through hole is generally small, and the through hole does not affect the passage of mist droplets, but when the through hole passes through liquid, the through hole hinders the flow of the liquid due to an increase in surface tension, so that the resistance of leakage of the liquid such as essential oil from the exhaust duct 32 can be increased, and the leakage-proof effect can be improved. Specifically, the leakage preventing member 81 may be a stainless steel mesh or the like, and the resistance against leakage of the essential oil is increased by using a mesh.

In addition, a solenoid valve 82 may be disposed at the air outlet 22, the solenoid valve 82 may close or open the air outlet 22, and when the atomizer stops working, the solenoid valve 82 may be controlled to close the air outlet 22, so as to avoid leakage of the liquid to be atomized from the air outlet 22.

The foregoing is merely exemplary of the present invention, and those skilled in the art should not be considered as limiting the invention, since modifications may be made in the specific embodiments and application scope of the invention in light of the teachings of the present invention.

Claims

1. An atomizer, comprising:

the bottle body (1) is internally provided with a containing cavity (11) for containing liquid to be atomized;

the spray head (2) is connected with the bottle body (1) and seals the accommodating cavity (11), and the spray head (2) is provided with an air inlet (21);

the air inlet conduit (31) is arranged on the spray head (2), a first end of the air inlet conduit (31) is communicated with the air inlet (21), and a second end of the air inlet conduit extends into the accommodating cavity (11);

-a one-way valve structure (4) comprising a valve inlet (42) and a valve outlet (43), fluid being flowable from the valve inlet (42) to the valve outlet (43) without reverse flow, the valve inlet (42) being in communication with the second end of the air intake conduit (31);

the spray head (2) is provided with exhaust pipes (32), one end of each exhaust pipe (32) is communicated with the corresponding exhaust port (22), the other end of each exhaust pipe is communicated with the corresponding accommodating cavity (11), and the number of the exhaust pipes (32) is at least two;

a leakage prevention piece (81) is arranged at the exhaust port (22), and a plurality of through holes are formed in the leakage prevention piece (81);

an electromagnetic valve (82) is arranged at the exhaust port (22), and the electromagnetic valve (82) can close or open the exhaust port (22);

the inside of the exhaust port (22) is provided with a buffer zone (220), the buffer zone (220) is a space, atomized liquid is discharged from the accommodating cavity (11) to the buffer zone (220) through the exhaust pipe (32), and then discharged and released outside the exhaust port (22) through the buffer zone (220).

2. The atomizer according to claim 1, wherein said one-way valve structure (4) further comprises:

-a valve body (41) on which said valve inlet (42) and said valve outlet (43) are arranged;

and a flexible diaphragm (44) positioned outside the valve outlet (43), wherein a part of the flexible diaphragm (44) is connected with the valve body (41), and when the flexible diaphragm (44) is abutted against the valve outlet (43), the valve outlet (43) can be closed.

3. An atomizer according to claim 2, wherein one end of the valve body (41) is spherical and a first plane (411) is provided on the outer surface of the sphere, the valve outlet (43) is located on the first plane (411), and the flexible membrane (44) abuts the first plane (411) to close the valve outlet (43).

4. A nebulizer as claimed in claim 3, wherein the number of first planes (411) is at least two, the first planes (411) each being provided with the valve outlet (43), the flexible membrane (44) being provided at each valve outlet (43).

5. The atomizer of claim 4 wherein the number of said first planes (411) is two, said two first planes (411) are disposed opposite to each other, said valve body (41) is provided with a diaphragm mounting hole (412) communicating said two first planes (411), a middle portion of said flexible diaphragm (44) is located in said diaphragm mounting hole (412), and portions of both sides of said flexible diaphragm (44) exposed in said diaphragm mounting hole (412) can be abutted to adjacent first planes (411).

6. The atomizer according to any one of claims 1 to 5, wherein the spray head (2) is provided with an ultrasonic air pump (5), an air inlet end of the ultrasonic air pump (5) being in communication with the air inlet (21), and an air outlet end being in communication with the air inlet conduit (31).

7. The atomizer according to claim 6, wherein the air inlet (21) is filled with filtering noise reduction features (6).

8. The atomizer according to claim 6, characterized in that a buffer element (7) is arranged between the ultrasonic air pump (5) and the mounting surface of the spray head (2).