CN112169095A - Low-noise atomizing cup convenient for adding medicine and air intake - Google Patents

Abstract

A low-noise atomizing cup facilitating medicine adding and air intake is characterized in that a containing cavity is formed in a cup shell of the atomizing cup, an opening is formed in the cup shell, a silencing device is positioned in the opening, a supporting portion of the silencing device is positioned in the opening in an installation state, a conduit portion of the silencing device extends into a channel at the opening position, a pipeline with the length-diameter ratio larger than 1 penetrates through the conduit portion, the pipeline is communicated with the containing cavity and the outside of the cup shell, a circle of silencing containing cavity is separated between the conduit portion and the inner wall of the channel, the silencing containing cavity can block and weaken noise, and when the atomizing cup works, one part of noise in the containing cavity is transmitted out of the conduit portion and the other part of noise enters the silencing containing cavity; noise in the pipeline and the silencing cavity can reflect back and forth to lose part of energy and be weakened, and the noise in the two parts offsets vibration generated by the pipe part, so that the noise is further weakened; the pipeline is matched with the silencing cavity, so that a better silencing effect is achieved.

Description

Low-noise atomizing cup convenient for adding medicine and air intake

Technical Field

The invention relates to the field of medical atomizers, in particular to a jet type atomizing cup for atomization inhalation treatment.

Background

The aerosol inhalation therapy is a method for treating respiratory diseases such as asthma, bronchitis, pharyngolaryngitis and the like, wherein a jet type atomizing cup is the mainstream equipment for aerosol inhalation therapy at present.

The atomizing cup has the main function of atomizing the medicine liquid in the cup for the patient to inhale, and the atomizing process is that the outer compressed air (or oxygen) is sent into the atomizing cup through a pipeline by utilizing the Venturi principle, and then is ejected from a jet hole with a narrow section in the atomizing cup at a high speed and impacts a collision surface, the high-speed airflow generates a negative pressure area in the impact, so that the medicine liquid is inhaled into the high-speed airflow under the action of the pressure difference between the negative pressure area and the atmospheric pressure, and then the high-speed airflow carries the medicine liquid to impact the collision surface above the jet hole together to form a certain amount of tiny fog drops with certain diameter, namely the atomizing cup is used for the 'fogging' process.

In the process of atomization treatment, a patient inhales aerosol through an inhalation mask or a mouthpiece connected with an aerosol outlet of an atomizing cup, and the distance between the atomizing cup and the patient is very short, so that noise generated by impact between gas and liquid in the atomizing cup and a collision surface can affect the emotion of the patient to a certain extent, the patient can be irritated, repelled and panic seriously, and particularly when the patient is used by a child, the noise has obvious influence on the treatment effect.

The existing atomizing cup technology, such as in the patent 'detachable silencing atomizing cup' with the application number of CN201420479998.3, discloses an atomizing cup capable of reducing noise, wherein a cup cover of the atomizing cup is provided with adjusting holes, so that when air enters, the noise can be controlled by controlling the size of the adjusting holes, but when the noise is reduced, the air intake is reduced, thereby affecting the mist output of the atomizing cup and reducing the treatment effect; in addition, the atomizing cup can be used for adding medicine only by opening the cup shell, and is not very convenient to use.

Therefore, how to solve the above-mentioned deficiencies of the prior art is a problem to be solved by the present invention.

Disclosure of Invention

The invention aims to provide a low-noise atomizing cup convenient for adding medicine and feeding air

In order to achieve the purpose, the invention adopts the technical scheme that:

a low-noise atomizing cup convenient for dosing and air intake comprises a cup shell, wherein a cavity is formed in the cup shell, an opening for dosing and air intake is formed in the cup shell, and the opening is communicated with the cavity through a channel;

a silencer is arranged at the opening position;

the silencer is provided with a conduit part and a support part, the conduit part is a pipe body, a pipeline penetrates through the pipe body, the support part is a bracket, and the bracket is fixed on the periphery of a port at one end of the conduit part;

in an assembly state, the silencer is positioned at the opening position through the supporting part, the pipe part extends into the channel, the pipe in the pipe part is communicated with the cavity and the outside of the cup shell, a silencing cavity is arranged between the pipe part and the channel at the periphery of the through direction around the pipe at an interval, and the silencing cavity and the pipe are communicated with the cavity at the same end to form a silencing structure in cooperation with the pipe.

Further, the conduit part is cylindrical, the length-diameter ratio of a pipeline in the cylinder is greater than 1, the support part is an annular disc-shaped support, the inner circle of the annular disc-shaped support is fixedly connected with the periphery of a port at one end of the conduit part, and the annular disc-shaped support and the pipeline are coaxially or eccentrically arranged; under the assembly state, the excircle and the opening of the circular disc-shaped support are in interference fit.

Furthermore, the silencing cavity is an annular cavity formed by the outer wall of the conduit part, the inner wall of the channel and a disc-shaped end face of one end, close to the cavity, of the supporting part.

Furthermore, a spiral rib surrounding the outer wall of the guide pipe part is arranged in the silencing cavity.

Furthermore, the supporting part is provided with an air inlet hole in a circular ring in a penetrating manner, one end of the air inlet hole is communicated with the outside of the cup shell, and the other end of the air inlet hole is communicated with the accommodating cavity through the silencing cavity.

Furthermore, the pipe wall of the pipe part is in clearance fit with the inner wall of the channel, a plurality of sieve holes penetrate through the pipe wall of the pipe part along the through direction of the pipeline, and the plurality of sieve holes surround the pipeline to form the silencing cavity.

Furthermore, the supporting part is provided with an air inlet hole in a penetrating way in the circular ring, one end of the air inlet hole is communicated with the outside of the cup shell, and the other end of the air inlet hole is communicated with the containing cavity through a gap between the outer wall of the conduit part and the inner wall of the channel.

Furthermore, a positioning block is arranged on the outer circle of the ring of the supporting part, a positioning groove matched with the positioning block is arranged at the opening of the cup shell, and the positioning block is correspondingly embedded in the positioning groove in an assembling state.

The relevant content in the above technical solution is explained as follows:

1. in the above scheme, the opening is communicated with the cavity through a passage, the passage is a path connecting the opening and the cavity, and may be a passage extending from the opening to the cavity or a passage formed by the inner wall of the cavity close to the opening.

2. In the above scheme, silencing device arranges in the opening for the path of noise business turn over becomes the less pipeline of bore among the silencing device by the great opening of original bore, the draw ratio of pipeline is greater than 1 and is the best, straight pipeline when this pipeline can, also can be curved pipeline, as long as the pipeline can stretch into when the assembly hold the chamber can, with this under the user state, the pipeline replaces the opening as dosing mouth and air intake when, the propagation path size of noise has been reduced, with some noise separation in holding the chamber, even another part noise spreads out from the pipeline, because the draw ratio of pipeline is greater than 1, its longer inner wall has certain reflection weakening effect to the noise, can play the effect of amortization noise reduction.

3. In the scheme, a silencing cavity is arranged between the conduit part and the accommodating cavity at intervals around the through direction of the pipeline, and can be an annular cavity, an annular cavity with spiral ribs or sieve holes in the inner wall of the conduit part;

the annular cavity is used for blocking a part of noise in the annular cavity, so that the noise is reflected back and forth in the annular cavity, the energy of the noise is lost, meanwhile, the noise is reflected to the outer wall of the guide pipe part to generate vibration, the vibration generated when the noise in the flushing pipeline impacts the inner wall of the guide pipe part can be generated, the noise is weakened mutually, and the effects of noise elimination and noise reduction are achieved;

the design of the spiral rib can better consume the energy of noise, and further reduce the noise;

the sieve holes on the inner wall of the duct part can increase the air inlet amount on one hand and can also play a role of noise reduction similar to a honeycomb structure on the other hand.

4. In the above-mentioned scheme, no matter the amortization chamber is that kind of structure, the pipe portion is clearance fit with holding the intracavity wall, and when the amortization chamber was the ring cavity that is equipped with the spiral muscle or the sieve mesh in the inner wall of pipe portion, its better noise cancelling effect makes the supporting part can set up the inlet port and can not weaken the noise cancelling effect, and inlet port and amortization chamber cooperation can also increase the intake in the amortization noise reduction.

5. In the above scheme, the support part is a positioning bracket and is used for positioning the silencer in the opening, so that the support part can be a hasp structure matched with the opening, a stud connected with the opening in a threaded manner, or a circular disc shape in interference fit with the opening;

the conduit part can be cylindrical or cylindrical with a square cross section as long as a passage penetrates through the conduit part;

the supporting part and the pipeline are coaxially or eccentrically arranged, the port of the pipeline cannot be over against a noise source when the pipeline is eccentrically arranged, and the noise reduction effect is better.

6. In the above scheme, when the supporting part is in the shape of a circular disc, the positioning blocks around the outer circle of the supporting part are matched with the positioning grooves in the opening, so that the silencing device can be positioned more firmly.

The working principle of the invention is as follows:

a low-noise atomizing cup convenient for dosing and air intake is characterized in that a cup shell of the atomizing cup is provided with a cavity, the cup shell is provided with an opening, a silencing device is positioned and installed in the opening, a supporting part of the silencing device is positioned in the opening in an installation state, and a conduit part of the silencing device extends into a channel at the position of the opening;

a pipeline with the length-diameter ratio larger than 1 penetrates through the conduit part of the silencing device, the pipeline is communicated with the containing cavity and the outside of the cup shell, a circle of silencing containing cavity is separated between the conduit part and the inner wall of the channel, the silencing containing cavity can block and weaken noise, and can be an annular cavity, an annular cavity with spiral ribs or a plurality of sieve holes in the inner wall of the conduit;

when the atomizing cup works, noise in the cavity is mainly transmitted from the opening, when the silencing device is arranged in the opening, one part of noise in the cavity is transmitted from the pipeline of the guide pipe part, and the other part of noise enters the silencing cavity; the noise in the pipeline is weakened by reflecting and losing a part of energy back and forth on the inner wall of the pipeline; the noise in the silencing cavity is difficult to be transmitted out of the cavity, so that the energy loss can be continuously reflected in the silencing cavity, and the vibration of the noise in the silencing cavity on the conduit part is offset with the vibration of the noise in the pipeline on the conduit part, so that the noise is further weakened; the pipeline is matched with the silencing cavity, so that a better silencing effect is achieved.

The invention has the following advantages:

firstly, the noise reduction effect is good: the pipeline that draw ratio is greater than 1 can weaken the noise better, and the amortization holds the chamber and can further block and weaken the noise, and the pipeline holds the chamber cooperation with the amortization, makes the noise in the two offset each other for the noise is further weakened again.

Secondly, the functions are complete: the silencer has the functions of silencing and reducing noise, and the pipeline can be used as a dosing channel and an air inlet channel, so that the inconvenience of dosing in the use process of the atomizing cup is avoided, and the sufficient air inlet amount is ensured; compare the atomizing cup that is not equipped with opening or opening normal close, the atomizing cup of this design can conveniently add the medicine and guarantee the intake, compares the atomizing cup that has opening and normally open, and the atomizing cup of this design can the amortization noise reduction.

Thirdly, small, exquisite, light and easy to install: the silencer is a single part, has simple structure, light weight and convenient installation, only needs to be positioned at the opening, and is more worry-saving when in use.

Drawings

FIG. 1 is a cross-sectional view of a low noise atomizing cup;

FIG. 2 is an enlarged view of portion A of FIG. 1;

FIG. 3 is a perspective view of a silencer assembly;

FIG. 4 is a cross-sectional view of the muffler assembly of FIG. 3;

FIG. 5 is a perspective view of a silencer assembly with spiral ribs and air inlets;

FIG. 6 is a perspective view of another perspective of the silencer with spiral ribs and air inlets;

FIG. 7 is a sectional view of a silencer assembly with spiral ribs and air inlets installed in an atomizing cup;

FIG. 8 is a perspective view of a silencer assembly with screening holes and air inlets;

FIG. 9 is a perspective cross-sectional view of a silencer assembly with screening holes and air inlets;

FIG. 10 is a sectional view of a silencer assembly with mesh and air inlet holes installed in an atomizing cup;

FIG. 11 is a schematic view of a noise propagation path;

FIG. 12 is a cross-sectional view of the inner cup;

FIG. 13 is a schematic view of the flow paths of air and liquid medicine in the atomizing cup, wherein the dashed indication arrows represent the liquid medicine flow paths and the solid indication arrows represent the air flow paths.

In the above drawings: 1. a cup shell; 2. a cavity; 3. an opening; 4. a channel; 5. a silencer device; 6. a conduit portion; 7. a support portion; 8. a pipeline; 9. a sound-deadening chamber; 10. a spiral rib; 11. screening holes; 12. an air inlet; 13. positioning blocks; 14. positioning a groove; 15. a cup core; 16. a mist outlet; 17. a jet orifice; 18. a collision surface; 19. an inner cup; 20. a communicating hole; 21. a handle; 22. a gas injection hole; 23. and (6) draining the gap.

Detailed Description

The invention is further described with reference to the following figures and examples:

the present disclosure will be described more fully hereinafter with reference to the accompanying drawings, in which embodiments of the disclosure may be shown and described, and which, when modified and varied by the techniques taught herein, can be made by those skilled in the art without departing from the spirit and scope of the disclosure.

The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the disclosure. The singular forms "a", "an", "the" and "the", as used herein, also include the plural forms.

As used herein, "connected" or "positioned" refers to two or more elements or devices being in direct physical contact with each other or in indirect physical contact with each other, and may also refer to two or more elements or devices being in operation or acting on each other.

As used herein, the terms "comprising," "including," "having," and the like are open-ended terms that mean including, but not limited to.

As used herein, the term (terms), unless otherwise indicated, shall generally have the ordinary meaning as commonly understood by one of ordinary skill in the art, in this written description and in the claims. Certain words used to describe the disclosure are discussed below or elsewhere in this specification to provide additional guidance to those skilled in the art in describing the disclosure.

The terms "front", "rear", "upper", "lower", "left" and "right" used herein are directional terms, and are used only for describing the positional relationship between the structures, and are not intended to limit the specific direction of the protective reaction and the practical implementation of the present invention.

The first embodiment is as follows: referring to fig. 1 to 4, and fig. 11 to 13, a low noise atomizing cup for easy dosing and air intake includes a cup housing 1, an inner cup 19, and a cup core 15;

as shown in fig. 1 and 13, a cavity 2 is formed in a cup shell 1, an opening 3 which is open upward is formed at the upper end of the cup shell 1, a mist outlet 16 which communicates the inside of the cavity 2 with the outside of the cavity 2 is formed in the side wall of the cup shell 1, a handle 21 is further arranged on the side wall of the cup shell 1, an air injection hole 22 whose inner diameter gradually decreases from bottom to top is formed at the bottom of the cup shell, the air injection hole 22 extends out of the cavity 2 and is connected with compressed air, the upper end of the air injection hole 22 is conical, the conical tip extends into the cavity 2 to form a jet orifice 17, and the jet orifice 17 is arranged upward;

the cup core 15 is a conical sleeve matched with the gas jet hole 22, the middle part of the cup core is provided with a communication hole 20, two sides of the communication hole 20 are communicated with the containing cavity 2, a collision column is erected above the communication hole 20, the lower end face of the collision column is a collision face 18, in the installation state, the cup core 15 covers the upper side of the gas jet hole 22, the communication hole 20 of the cup core 15 is communicated with the jet orifice 17 up and down, the collision face 18 and the jet orifice 17 are arranged in an up and down alignment manner, the distance between the collision face 18 and the jet orifice 17 is a collision distance, the inner wall of the cup core 15 and the outer wall of the gas jet hole 22 form clearance fit, the clearance between the two is a liquid guiding gap 23 of liquid medicine, when compressed gas is sprayed out from the jet orifice 17, a low pressure area can be generated according to the Venturi principle, the liquid medicine is sucked up from the liquid guiding gap 23 under the influence of pressure difference, the sucked liquid medicine impacts the collision face 18 with the compressed gas, the fog drops with large volume and heavy weight fall back into the liquid medicine;

as shown in fig. 12, the inner cup 19 is a sleeve-shaped structure with an interior penetrating up and down, the inner wall of the upper end of the inner cup 19 is provided with a positioning groove 14, the size of the port of the lower end is matched with that of the cup core 15, when the inner cup 19 is embedded in the cavity 2, the outer wall of the upper end of the inner cup 19 is in interference fit with the opening 3, the port of the lower end is abutted against the cup core 15, so that the cup core 15 is positioned in the cavity 2, and the inner wall of the inner cup 19 forms a channel 4;

as shown in fig. 3 and 4, the silencer 5 includes a duct portion 6 and a support portion 7, the duct portion 6 is a straight tube, a pipe 8 with a length-diameter ratio greater than 1 penetrates through the duct portion, and a cross-sectional dimension of the pipe 8 is smaller than a cross-sectional dimension of the channel 4, the support portion 7 is a disc ring-shaped bracket, four positioning blocks 13 are arranged around an outer circumference of the disc ring-shaped bracket, and an inner circle of the disc ring-shaped bracket is fixed on a periphery of a port at one end of the duct portion 6 to form a funnel-shaped silencer 5;

as shown in fig. 1 and fig. 2, the silencing device 5 is embedded in the upper opening of the inner cup 19, the positioning block 13 around the supporting portion 7 is matched with the positioning groove 14, the outer edge of the supporting portion 7 is in interference fit with the inner wall of the upper opening of the inner cup 19, the conduit portion 6 extends from the opening 3 along the channel 4 to the direction of the cup core 15, the pipeline 8 with the length-diameter ratio larger than 1 in the conduit portion 6 is communicated with the cavity 2 and the outside of the cup shell, the pipeline 8 is opposite to the cup core 15 in the up-down direction, the outer wall of the conduit portion 6 is in clearance fit with the inner wall of the channel 4, around the clearance, the annular cavity formed by the outer wall of the conduit portion 6, the inner wall of the channel 4 and the disc-shaped end surface of the supporting portion 7 near the cavity 2 forms a silencing cavity 9, one end of;

in the use state, the collision surface 18 in the cup core 15 collides with the liquid medicine and the compressed gas to generate noise, one part of the noise is transmitted out of the pipeline 8 and is continuously reflected and weakened in the pipeline 8, the other part of the noise is blocked in the silencing cavity 9, the noise is reflected and weakened in the silencing cavity 9, and simultaneously, the vibration generated by the pipe part 6 and the vibration generated by the noise in the pipeline 8 are mutually counteracted, so that the noise is further reduced;

as shown in fig. 13, when the silencer device 5 is used, the silencer device 5 can also be used as a dosing port and an air inlet, air entering from the pipe 8 of the silencer device 5 is sucked into the cavity 2, carries mist out from the mist outlet 16, and liquid medicine entering the cavity 2 from the pipe 8 sinks at the bottom of the cavity 2, is sucked up from the drainage gap 23 under the influence of pressure difference, and collides with the collision surface 18 together with compressed gas entering from the gas injection hole 22 to form mist.

The support portion 7 in the first embodiment is a circular disc-shaped bracket, may also be a snap structure that is matched with the opening 3, and may also be a stud that is screwed with the opening 3, and when the opening 3 is a square opening, the support portion 7 may also be a square disc that is in interference fit with the opening 3, as long as it is a bracket structure that can position the noise reduction device at the position of the opening 3, but this structural change does not bring other additional effects, and therefore it can be considered as a substantial equivalent, and therefore this structure should be included in the present invention, which can be understood and accepted by those skilled in the art.

The conduit portion 6 in the first embodiment is a straight pipe, and may be another pipe type such as a bent pipe or a corrugated pipe, as long as it is a pipe shape capable of extending into the cavity 2 from the opening 3, but such structural change does not bring other additional effects, and thus can be considered as a substantial equivalent, and such a structure should be included in the present invention, which can be understood and accepted by those skilled in the art.

Through test comparison, when the atomizing cup without the silencer 5 is in a working state, the noise is 58.07 decibels when the collision distance is 1.2 mm; when the atomizing cup provided with the silencer device 5 in the first embodiment is in a working state, the noise is 53.58 decibels when the collision distance is 1.2mm, and the noise reduction rate is 7.73%.

Example two: referring to fig. 5 to 7, the second embodiment is different from the first embodiment in that:

a spiral rib 10 surrounding the outer wall of the conduit part 6 is arranged in the sound attenuation cavity 9, an air inlet hole 12 is arranged in the circular ring of the support part 7 in a penetrating manner, one end of the air inlet hole is communicated with the outside of the cup shell 1, and the other end of the air inlet hole is communicated with the accommodating cavity 2 through the sound attenuation cavity 9;

in the installation state, the width of the spiral rib 10 is equal to the cross-sectional annular width of the sound-deadening chamber 9 when viewed from the up-down direction, so that the spiral rib 10 is blocked in the sound-deadening chamber 9, noise can be blocked by the spiral rib 10 when the noise is transmitted in the sound-deadening chamber 9, the noise is further weakened, and the air inlet 12 can be formed in the support part 7, so that the air inflow is further increased.

Through test comparison, when the atomizing cup without the silencer 5 is in a working state, the noise is 58.07 decibels when the collision distance is 1.2 mm; in the working state of the atomizing cup equipped with the silencer 5 of the second embodiment, the noise is 56 db when the collision distance is 1.2mm, and the noise reduction rate is 3.56%.

Example three: referring to fig. 8 to 10, the third embodiment is different from the first embodiment in that:

a plurality of sieve holes 11 penetrate through the pipe wall of the pipe part 6 along the up-down direction, and the sieve holes 11 are arranged around the pipeline 8 and are arranged between the pipe part 6 and the channel 4 at intervals to form the silencing cavity 9;

in the installation state, the pipe wall of the conduit part 6 is in clearance fit with the inner wall of the channel 4, the gap width of the gap is far smaller than the annular section ring width of the silencing cavity 9 in the first embodiment, the silencing cavity 9 formed by the sieve pores 11 in the third embodiment replaces the silencing cavity 9 with an annular cavity structure, the sieve pores 11 surround the structure of the pipeline 8, the narrow section of the sieve pores can reflect noise to weaken the energy of the sieve pores similar to a honeycomb structure, and the sieve pores 11 are vertically communicated and can be used as a channel for air circulation to increase the air inflow; preferably, the supporting part 7 is provided with an air inlet hole 12 in a circular ring in a penetrating manner, one end of the air inlet hole 12 is communicated with the outside of the cup shell 1, and the other end of the air inlet hole 12 is communicated with the accommodating cavity 2 through a gap between the outer wall of the conduit part 6 and the inner wall of the channel 4, so that the air inflow is further increased by 1.

Through test comparison, when the atomizing cup without the silencer 5 is in a working state, the noise is 58.07 decibels when the collision distance is 1.2 mm; in the working state of the atomizing cup equipped with the silencer 5 of the third embodiment, the noise is 54.77 db when the collision distance is 1.2mm, and the noise reduction rate is 5.68%.

The above embodiments are merely illustrative of the technical ideas and features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the contents of the present invention and implement the present invention, and not to limit the protection scope of the present invention. All equivalent changes and modifications made according to the spirit of the present invention should be covered within the protection scope of the present invention.

Claims (8)

1. The utility model provides a conveniently add low noise atomizing cup of medicine and air inlet, includes cup shell (1), have one in cup shell (1) and hold chamber (2), offer on cup shell (1) and be arranged in toward holding opening (3) that add medicine and air inlet in chamber (2), opening (3) hold chamber (2), its characterized in that through passageway (4) intercommunication:

a silencing device (5) is arranged at the position of the opening (3);

the silencer (5) is provided with a pipe part (6) and a supporting part (7), the pipe part (6) is a pipe body, a pipeline (8) penetrates through the pipe body, and the supporting part (7) is a support fixed on the periphery of a port at one end of the pipe part (6);

in an assembly state, the silencing device (5) is positioned at the position of the opening (3) through the supporting part (7), the guide pipe part (6) extends into the channel (4), a silencing cavity (9) is arranged between the guide pipe part (6) and the channel (4) at intervals around the penetrating direction of the pipeline (8), the silencing cavity (9) is communicated with the accommodating cavity (2), and the silencing cavity (9) is matched with the pipeline (8) to form a silencing structure.

2. The low noise atomizing cup convenient for adding medicine and air intake according to claim 1, characterized in that: the pipe part (6) is cylindrical, the length-diameter ratio of a pipeline (8) in the cylinder is larger than 1, the supporting part (7) is a circular disc-shaped bracket, the inner circle of the circular disc-shaped bracket is fixedly connected with the periphery of a port at one end of the pipe part (6), and the circular disc-shaped bracket and the pipeline (8) are coaxially or eccentrically arranged; in the assembling state, the outer circle of the circular disc-shaped support is in interference fit with the opening (3).

3. The low noise atomizing cup convenient for adding medicine and air intake according to claim 2, characterized in that: the silencing cavity (9) is an annular cavity formed by the outer wall of the guide pipe part (6), the inner wall of the channel (4) and the disc-shaped end face of one end, close to the accommodating cavity (2), of the supporting part (7).

4. The low noise atomizing cup convenient for adding medicine and air intake according to claim 3, characterized in that: spiral ribs (10) surrounding the outer wall of the conduit part (6) are arranged in the silencing cavity (9).

5. The low noise atomizing cup convenient for adding medicine and air intake according to claim 4, characterized in that: an air inlet hole (12) is formed in the supporting portion (10) in a penetrating mode on the circular ring disc, one end of the air inlet hole (12) is communicated with the outside of the cup shell (1), and the other end of the air inlet hole is communicated with the accommodating cavity (2) through the sound attenuation cavity (9).

6. The low noise atomizing cup convenient for adding medicine and air intake according to claim 1, characterized in that: the pipe wall of the pipe part (6) is in clearance fit with the inner wall of the channel (4), a plurality of sieve holes (11) penetrate through the pipe wall of the pipe part (6) along the through direction of the pipeline (8), and the plurality of sieve holes (11) surround the pipeline (8) to form the silencing cavity (9).

7. The low noise atomizing cup convenient for adding medicine and air intake according to claim 6, characterized in that: an air inlet hole (12) is arranged in the supporting portion (10) in a penetrating mode, one end of the air inlet hole (12) is communicated with the outside of the cup shell (1), and the other end of the air inlet hole is communicated with the accommodating cavity (2) through a gap between the outer wall of the guide pipe portion (6) and the inner wall of the channel (4).

8. The low noise atomizing cup convenient for adding medicine and air intake according to claim 2, characterized in that: be equipped with locating piece (13) on the ring excircle of supporting part (7), cup shell (1) is equipped with at its opening part with locating piece (13) matched with constant head tank (14), locating piece (13) are corresponding to inlay to be established in constant head tank (14) under the assembled state.

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