WO2023040159A1

WO2023040159A1 - Portable split-type filter device

Info

Publication number: WO2023040159A1
Application number: PCT/CN2022/073034
Authority: WO
Inventors: 刘燕玲; 刘柏藩; 刘燕仪
Original assignee: 深圳市宏日嘉净化设备科技有限公司
Priority date: 2021-09-18
Filing date: 2022-01-20
Publication date: 2023-03-23
Also published as: CN217472930U

Abstract

A portable split-type filter device, comprising a protective face mask (10) having a cavity, a filter main unit (20), and an intake hose (30) and an exhaust hose (40) which are connected between the protective face mask (10) and the filter main unit (20), wherein the filter main unit (20) comprises an intake filter component (22) for filtering the air in the intake hose (30) and an exhaust filter component (23) for filtering the air in the exhaust hose (40); the protective face mask (10) is provided with a bracket component, which accommodates a voice receiving component for recording a user's voice and is provided with a sound transmission region for transmitting the user's voice, the sound transmission region being arranged corresponding to the voice receiving component; and the filter main unit (20) is further provided with a sound production component that is in communication connection with the voice receiving component.

Description

A portable split filter device

technical field

The utility model relates to the technical field of air filtration, in particular to a portable split filter device.

Background technique

Air is a living gas, which is colorless and odorless in its natural state. Oxygen in the air is necessary for all aerobic organisms. However, untreated air contains a large number of germs and impurities, which will affect our daily life and health. The first pollution is germs, which mainly come from droplets and droplet nuclei, which are transmitted from the mouth and nose when the human body speaks, breathes, sneezes or coughs. The droplets and droplet nuclei produced by the human body contain water and fall off the respiratory tract. Epithelial cells, some salt ions, and respiratory viruses and bacteria, airborne pathogens include: measles virus, influenza virus, rhinovirus, norovirus, rotavirus, coronavirus, echovirus, hantavirus; The second pollution is solid particles, which come from dust, smoke, fly ash, and fog in daily life. Since particles can attach toxic metals, carcinogens, and pathogenic bacteria, they are very harmful. Particulate matter in the air can be further divided into dustfall, total suspended particulate matter and respirable particulate matter, among which respirable particulate matter will cause bronchial reflex constriction, convulsions, coughing, sneezing and increased airway resistance after being inhaled by the human body. Under the environment, the resistance on the respiratory tract is gradually weakened, which induces chronic respiratory diseases, which will not only cause wear and tear on production equipment but also harm human health. According to epidemiological survey data, urban air pollution is the direct cause or inducement of diseases such as chronic bronchitis, emphysema and bronchial asthma.

In the prior art, the traditional air filter has a big defect, because of its bulky size, it is difficult for users to carry it with them, and it cannot filter the exhaust gas, which will make other people suffer from unfiltered exhaust to a certain extent. The air is infected; secondly, the existing air filter is difficult to replace the filter element without contact. In the existing technology, it is difficult to combine the traditional mask with the integrated nano-scale air filter that can be carried around, and when the user communicates with other users, the traditional mask will cause certain interference to the sound transmission, as well as cough, cough, etc. The droplets and droplet nuclei produced by speaking cannot be discharged in time, resulting in secondary inhalation and affecting health, and it is easy to cause the air in the traditional mask to fail to achieve exhaust circulation.

technical problem

The purpose of the utility model is to provide a portable split filter device, aiming to solve the technical problem that the traditional mask interferes with sound transmission.

technical solution

The technical scheme of the utility model is as follows:

A portable split filter device, comprising a protective mask with a cavity and a filter host, and an intake hose and an exhaust hose connected between the protective mask and the filter host; the filter host includes The intake filter component for filtering the gas in the intake hose and the exhaust filter component for filtering the gas in the exhaust hose; the protective mask is provided with a bracket assembly, and the bracket assembly is used to accommodate For the sound-receiving component that records the user's voice, the bracket component is provided with a sound transmission area for transmitting the user's voice, and the sound transmission area is set corresponding to the sound-receiving component; Connected articulation components.

Further, the radio assembly includes:

a microphone, the microphone is arranged in the bracket assembly, and is arranged corresponding to the sound transmission area, and the microphone is used to receive the voice signal sent by the user;

A voice main board, the voice main board is electrically connected to the microphone, and the voice main board is used to start or close the microphone;

The first battery is connected to the microphone and the voice main board respectively.

Further, the bracket assembly includes:

An inner bracket, the inner bracket is arranged on the protective mask;

An outer bracket, the outer bracket is arranged on the side of the inner bracket away from the protective mask, and is detachably connected with the inner bracket; the sound-receiving component is arranged in the outer bracket.

Further, the sound transmission area includes:

A first sound transmission hole, the first sound transmission hole is opened on the inner bracket, and the first sound transmission hole is set corresponding to the protective mask;

The second sound transmission hole, the second sound transmission hole is opened on the outer bracket, and the second sound transmission hole is connected with the first sound transmission hole; the first sound transmission hole corresponds to the sound collection Component settings.

Further, a sound tube is arranged on the outer bracket around the second sound hole, and the microphone is arranged in the sound tube.

Further, the filter host is provided with amplifying holes;

The pronunciation components include:

a loudspeaker, the loudspeaker is set in the filter host and is set corresponding to the sound amplification hole, and the loudspeaker is used to amplify the voice signal;

Main board, the speaker is connected to the speaker, and the speaker is used to start and stop the speaker and adjust the volume of the speaker;

the second battery, and the speaker is respectively connected to the speaker and the host motherboard.

Further, the sound receiving component is provided with a wireless transmitting module electrically connected to the microphone, the sound producing component is provided with a wireless receiving module electrically connected to the sound producing component, and the wireless transmitting module is connected to the wireless Receive module communication connection.

Further, the filtering host also includes:

The host casing, the intake filter component, the exhaust filter component and the sound receiving assembly are arranged in the host casing; the intake filter component is located at the intake end of the intake hose; the The exhaust filter component is located at the exhaust end of the exhaust hose;

An air exhaust assembly, the air exhaust assembly is arranged in the main body casing, and the air intake end of the air exhaust assembly is connected to the air outlet end of the air intake filter component, and the air outlet end of the air exhaust assembly is connected to the air intake hose The air inlet connection;

An adjustment button, the adjustment button is connected to the host mainboard and the air exhaust assembly, and the adjustment button is used to adjust the delivery air flow of the air exhaust assembly.

Further, a light guide assembly for displaying the power state is provided on the host case, and the light guide assembly is electrically connected to the main board of the host.

Further, a notch is provided on the main body casing, and a speaker bracket embedded in the notch is provided on the main body casing; the speaker is fixed on one side of the speaker bracket, and is connected with the loudspeaker The hole corresponds to the setting.

Beneficial effect

The beneficial effect of the utility model is that the split design of the radio component can effectively avoid the interference of the sound development component to the radio component, and then improve the purity of the sound collection of the radio component, so that it is transmitted to the split design of the pronunciation component when the radio information is played. more clearly.

Description of drawings

Fig. 1 is the three-dimensional structural diagram of the portable split filter device of the present utility model;

Fig. 2 is the explosion structure figure one of protective mask in the portable split filter device of the present utility model;

Fig. 3 is the explosion structure figure two of protective mask in the portable split filter device of the present utility model;

Fig. 4 is the exploded structural diagram 1 of the filter main engine in the portable split filter device of the present invention;

Fig. 5 is the explosion structure diagram 2 of the filter host in the portable split filter device of the present invention;

Fig. 6 is a three-dimensional structure diagram of the main body housing in the portable split filter device of the present invention;

Figure 7 is an enlarged view of A in Figure 5;

Fig. 8 is a schematic diagram of the air flow of the portable split filter device of the present invention.

Reference signs:

10. Protective mask; 11. Recessed cavity; 12. Storage cavity; 13. Assembly groove; 14. Inner bracket; 141. Fixing piece; 142. Assembly cavity; 15. Outer bracket; 151. Storage cavity; 152 , Clamping piece; 16, Microphone; 17, Cover plate; 18, Silicone button;

20. Filter host; 21. Host housing; 22. Air intake filter component; 23. Exhaust filter component; 24. First cavity; 25. Second cavity; 26. Third cavity; 261. Gap; 27. Ventilation component; 28. Start-stop switch; 29. Adjustment switch; 200. Adjustment button; 201. Horn bracket; 2011. Amplifying hole; 2012. Button hole; 2013. Ring groove; 2014. Perforation; 202. Button cover ;

30. Air intake hose;

40. Exhaust hose; 41. Exhaust pipe;

50. Inlet and outlet bracket;

60. Air intake head;

70. The first sound transmission hole; 71. The second sound transmission hole;

80. Voice main board; 81. First battery; 82. Microphone; 83. Voice switch; 84. First USB connector;

90. Speaker; 91. Main board; 911. Lamp bead; 92. Second battery; 93. Second USB connector;

100, light guide ring; 101, light guide member;

200. Air flow route;

1000. Portable split filter device.

Embodiments of the present invention

Below in conjunction with accompanying drawing and embodiment the utility model is further described.

Referring to Fig. 1 to Fig. 3, a portable split filter device 1000 includes a protective mask 10 and a filter host 20, and the protective mask 10 and the filter host 20 are connected by an intake hose 30 and an exhaust hose 40 Wherein, protective respirator 10 adopts flexible material to make, to realize the fit degree of protective respirator 10 and human body face by the material characteristic of flexible material, to the greatest extent with the air in protective respirator 10 and the air of outside isolating, reduce The influence of outside air on protective mask 10. As a specific embodiment, the protective mask 10 is a mask shell with a recessed cavity 11, which is made of silica gel in this embodiment, and of course, can also be made of flexible materials such as rubber or plastic; it should be noted that the protective mask 10 The side facing the face of the human body is set in a circle and its shape matches the contour of the face of the human body. Because the material is silica gel, the applicable crowd of the protective mask 10 is expanded to the greatest extent, and the performance of the protective mask 10 is improved to a certain extent. comfort.

Referring to Fig. 2 and Fig. 3, the lower end of the protective mask 10 is provided with an air inlet and outlet support 50, and the air inlet and outlet support 50 is provided with an air intake guide pipe and an exhaust guide pipe connected to the recessed cavity 11 of the protective mask 10 , wherein, an air intake head 60 is provided in the recessed cavity 11, the air intake head 60 communicates with the air intake duct, and the end of the air intake head 60 away from the intake duct is bent and set, after bending One end of the air inlet is the outlet end of the air inlet head 60, and the outlet end is set facing the side wall of the protective mask 10 to reduce the impact of the air intake directly on the mouth and nose of the face. , so that the incoming airflow circulates in the protective mask 10 along the wall of the recessed cavity 11 of the protective mask 10, and the gas exhaled by the human body is brought into the exhaust guide tube to be discharged, so as to ensure the gas in the protective mask 10 to the greatest extent. cleanliness.

Referring to Fig. 4 to Fig. 6, the filter host 20 includes a host casing 21, an intake filter component 22 and an exhaust filter component 23; wherein, the host casing 21 is provided with a first cavity 24 and a second cavity arranged side by side. body 25 and the third cavity 26 on the same line as the second cavity 25, the air intake filter component 22 is arranged in the first cavity 24, and an exhaust assembly is arranged on the outlet end of the intake filter component 22, and the exhaust air Components can be a blower 27, an exhaust fan, etc. that can draw outside air into the main body housing 21. In this embodiment, a blower 27 is used, wherein the air intake filter component 22 can be replaced according to the usage. The blower 27 is located at the second In a cavity 24, and the air outlet end of the blower 27 communicates with the intake hose 30; the exhaust filter component 23 is arranged in the second cavity 25, wherein the intake filter component 22 can be replaced according to the usage, and the housing The exhaust pipe 41 located in the third cavity 26 is connected to the top, and the intake end of the exhaust pipe 41 communicates with the exhaust hose 40, and the exhaust end communicates with the exhaust filter component 23 located in the second cavity 25 It should be noted that the volume of the second cavity 25 is smaller than that of the first cavity 24, so as to reduce the residence of the exhaled gas in the portable split filter device 1000 to a certain extent, and also increase the inhalation of the portable split filter. The containment volume of air within the device 1000 .

As a specific embodiment, the abutting wall of the intake filter component 22 and the first cavity 24 is sealed by a sealing rubber ring (not marked in the figure), and the exhaust filter component 23 and the second cavity 25 are sealed. The abutting walls are sealed by a sealing rubber ring, and the end connected to the air outlet end of the blower 27 and the inlet end of the intake hose 30 is sealed by a sealing rubber ring.

The portable split filter device 1000 includes a sound-receiving component (not marked) on the protective mask 10 and a sound-emitting component (not marked) that is located in the third cavity 26 and wirelessly connected with the sound-receiving component, so as to realize The sound collection information obtained in the protective mask 10 is transmitted to the pronunciation component located on the filter host 20 through wireless transmission technology and sent out.

The advantage of the split design of the above-mentioned sound receiving assembly and the pronunciation assembly compared to the sound receiving assembly and the pronunciation assembly being located on the protective mask 10 is that the split design of the sound collection assembly can effectively avoid the interference of the sound development assembly to the sound reception assembly, thereby improving The purity of the sound collection of the sound collection component makes it clearer when the sound reception information transmitted to the sound collection component of the split design is played.

Please refer to Fig. 2 and Fig. 3, the storage cavity 12 that protective mask 10 is recessed and formed on the side facing away from the recessed cavity 11, also recessed on the protective mask 10 is formed with two symmetrically located at the assembly of storage cavity 12 both sides Slot 13; the protective mask 10 is provided with a bracket assembly (not marked in the figure), and the bracket assembly includes an inner bracket 14 embedded in the storage cavity 12 and an outer bracket 15 clamped and fixed with the inner bracket 14; wherein, the inner bracket Both sides of 14 are symmetrically provided with fixing parts 141, and the fixing parts 141 are embedded in the assembly groove 13, so that the inner bracket 14 is difficult to move on the protective mask 10, so as to enhance the firmness of the bracket assembly installed on the protective mask 10 The two sides of the outer bracket 15 are symmetrically provided with clips 152 , and the clips 152 and the fixing parts 141 are clipped and fixed, so that the outer bracket 15 is fixed on the inner bracket 14 .

As a specific embodiment, please refer to FIG. 2 and FIG. 3 , the inner bracket 14 is recessed toward the direction of the protective mask 10 to form an assembly cavity 142 for the outer bracket 15 to be clamped and fixed; the outer bracket 15 is recessed toward the inner bracket 14. The housing cavity 151 for housing the sound-receiving component is covered with a cover plate 17 that closes the housing cavity 151 on the outer support 15, and a silicone button 18 is pierced on the cover plate 17; The sound transmission area, the sound transmission area is set corresponding to the sound receiving assembly, wherein the sound transmission area includes the first sound transmission hole 70 opened on the inner bracket 14, and the first sound transmission hole 70 is located at the bottom of the assembly cavity 142 (that is, the side of the assembly cavity 142 facing the protective mask 10), and the first sound transmission hole 70 is set through the assembly cavity 142; the sound transmission area also includes the second sound transmission hole 71 opened on the outer bracket 15, the The second sound transmission hole 71 is located on the bottom of the storage cavity 151 (that is, the storage cavity 151 is facing the side of the protective mask 10) and the first sound transmission hole 70 is provided through the storage cavity 151. Of course, the preferred solution is the second The first sound transmission hole 70 and the second sound transmission hole 71 are arranged coaxially.

Specifically, the thickness of the area of the protective mask 10 close to the above-mentioned sound transmission area is lower than other places of the protective mask 10 (i.e. other than the sound transmission area), so that the sound emitted by the user passes through the protective mask in the sound transmission area. 10. The vibration is transmitted to the sound-receiving component; in addition, the sound-receiving part of the sound-receiving component is set corresponding to the above-mentioned sound transmission area.

Referring to Fig. 2 and Fig. 3, the sound-receiving assembly includes a voice main board 80 assembled in the storage cavity 12, a first battery 81 arranged between the voice main board 80 and the bottom of the storage cavity 12 and electrically connected to the voice main board 80, A microphone 82 electrically connected to the voice main board 80, a voice switch 83 electrically connected to the voice main board 80 and controlling the activation or deactivation of the radio assembly, the voice switch 83 is linked with the above-mentioned silicone button 18.

Specifically, the outer bracket 15 is provided with a microphone tube 16 surrounding the second sound transmission hole 71 , and the microphone 82 is disposed in the microphone tube 16 so that the microphone 82 collects sound.

The advantage of the above method of assembling the microphone 82 is that it not only limits the position of the microphone 82 , but also facilitates the sound collection work of the microphone 82 . Wherein, a sheath is provided between the microphone tube 16 and the microphone 82 .

As a specific embodiment, the voice main board 80 is also electrically connected with the first USB connector 84, so that the user can use an external power supply to supplement the first battery 81; in addition, the voice switch 83 in this embodiment is located at the first USB connector. 84 and is electrically connected with the first USB connector 84, so that the electronic components arranged on the protective mask 10 have a higher degree of integration.

Referring to Fig. 4 and Fig. 5, the pronunciation assembly comprises the loudspeaker 90 that is located in the filter main frame 20, and this loudspeaker 90 is used for amplifying and broadcasting voice signal; Loudspeaker 90 and adjust the volume of loudspeaker 90, so that the user adjusts the play volume of loudspeaker 90 according to environmental factors;

The radio assembly is provided with a wireless transmitting module (not shown) electrically connected with the microphone 82, and the pronunciation assembly is provided with a wireless receiving module (not shown) electrically connected with the pronunciation assembly, and the wireless transmission module is connected with the wireless Receive module communication connection. The wireless receiving module receives the wireless transmitting module and transmits the sound-receiving voice signal recorded by the microphone 82 to the loudspeaker 90 to broadcast, and then the microphone 82 that realizes sound-receiving is positioned on the protective mask 10 close to the user's head, and the loudspeaker 90 that realizes pronunciation is positioned away from the user's head On the filtering host 20, in order to realize the purpose of separate design of sound collection and pronunciation, effectively avoid the interference of the sound development component to the sound reception component, and then improve the purity of the sound collection of the sound collection component, so that it can be transmitted to the sound collection information of the sound component of the split design more clearly when playing.

As a specific embodiment, the above-mentioned wireless transmitting module and wireless receiving module can be bluetooth modules, and can also be transmitted by 2.4G radio technology; the main board 91 is also electrically connected with a second USB connector 93, so that the user uses an external power supply The second battery 92 is supplemented with electricity.

Referring to Fig. 4, Fig. 5 and Fig. 7, the filter host 20 also includes a host housing 21, a blower 27 and an adjustment button 200; the air intake filter component 22, the exhaust filter component 23 and the radio assembly are arranged in the host housing 21; The air intake end of the air intake hose 30 is connected with the air outlet end of the air intake filter part 22; the air outlet end of the exhaust hose 40 is connected with the exhaust filter part 23; The air intake end is connected to the air outlet end of the air intake filter part 22, and the air outlet end of the air blower 27 is connected to the air intake end of the air intake hose 30; the adjustment button 200 is connected to the main board 91 and the air blower 27 for adjusting the delivery of the air blower 27 Air flow, so that the user can adjust the air volume of the air blower 27 according to the required situation of the air intake.

As a specific embodiment, referring to Fig. 4, Fig. 5 and Fig. 7, the main board 91 is connected with a start-stop switch 28 for starting or closing the radio assembly, and an adjustment switch 29 for controlling the volume of the loudspeaker 90 and for controlling The adjustment button 200 of the air volume of the blower 27; The start-stop switch 28 is set to realize the start and close of the control filter host 20, so that the user operates; The adjustment switch 29 is set so that the user adjusts the playback volume of the loudspeaker 90 according to environmental factors; The adjustment button 200 is set so that the user can adjust the air volume of the blower 27 according to the required air volume.

Please refer to Fig. 4, please refer to Fig. 3 to Fig. 6, there is a notch 261 connected to the third cavity 26 on the main body casing 21, the speaker bracket 201 embedded in the notch 261 is provided on the main body casing 21, and the speaker 90 is stuck Connect and fix on the side of the horn bracket 201 facing the third cavity 26, to realize the fixed position of the loudspeaker 90 through the setting of the horn bracket 201, and the position of the horn bracket 201 corresponding to the loudspeaker 90 is provided with a sound amplification hole 2011, and the loudspeaker 90 Corresponding to the sound amplification hole 2011 , so that the sound dialed out by the speaker 90 is transmitted through the sound amplification hole 2011 .

On the horn support 201, there are also button holes 2012 for the start-stop switch 28, the adjustment switch 29 and the adjustment button 200 to protrude. , so that the user can more intuitively operate the start and stop of the filter host 20, the adjustment of the volume of the speaker 90, and the adjustment of the air volume of the blower 27. Specifically, the start and stop switch 28, the adjustment switch 29 and the adjustment button 200 are provided with The button cover 202 that links the three.

Please refer to Fig. 4, Fig. 5 and Fig. 7, the host board 91 is provided with a plurality of lamp beads 911 electrically connected to the host board 91, and the host board 91 controls the plurality of lamp beads 911 to turn on according to the stored value signal of the second battery 92 Or turn it off, so that the user can more intuitively obtain the power value of the second battery 92 during use, that is, the amount of power contained in the filter main unit. Of course, it also improves the aesthetics of the filter main unit 20 to a certain extent.

Please refer to Fig. 7, the horn bracket 201 is also provided with an annular groove 2013 surrounding the button hole 2012, and the annular groove 2013 is embedded with a light guide ring 100 matching the groove shape of the annular groove 2013; each lamp bead 911 is equipped with The light guide 101, the position of the light guide 101 corresponding to the annular groove 2013 is provided with a perforation 2014 for the light guide 101; The light guide 101 is set so that the light guide 101 transmits the light irradiated by the lamp bead 911 to the light guide ring 100, and then shows the wind power of the blower 27 electrically connected to the corresponding lamp bead 911 or the volume of the speaker 90; In this way, the light generated by each lamp bead 911 can be displayed more uniformly, so as to improve the aesthetics of the main filter 20 .

Working principle: As shown in Figure 8, the direction indicated by the arrow in Figure 8 is the air flow route 200, the outside air is sucked into the air intake filter part located in the main body casing 21 through the blower 27, and the air passes through the air intake filter part 22 Filtration process is carried out to ensure the cleanliness of the air entering the host housing 21 to the greatest extent; the blower 27 continuously inputs the filtered purified air into the protective mask 10 through the air intake hose 30, and passes through and enters The air inlet head 60 connected by the air hose 30 guides the purified air to the inner wall of the concave cavity 11 of the protective mask 10, so that the purified air flows along the inner wall of the concave cavity 11 and gradually flows to the exhaust gas connected to the concave cavity 11. The hose 40 flows, and this process can bring the gas exhaled by the human body into the exhaust hose 40 through the clean air that circulates, so that the gas flowing in the concave cavity 11 of the protective mask 10 is clean gas (i.e. filtered air), so that the air that the user inhales all the time is clean gas, which improves the user's experience; The pipe 41 flows to the exhaust filter component 23 , which improves the cleanliness of the gas exhaled by the human body after being filtered by the exhaust filter component 23 .

What has been described above is only the embodiment of the utility model, and it should be pointed out that for those of ordinary skill in the art, improvements can also be made without departing from the inventive concept of the utility model, but these all belong to Protection scope of the present utility model.

Claims

A portable split filter device, comprising a protective mask with a cavity and a filter host, and an intake hose and an exhaust hose connected between the protective mask and the filter host; the filter host includes An intake filter component for filtering the gas in the intake hose and an exhaust filter component for filtering the gas in the exhaust hose; it is characterized in that a bracket assembly is arranged on the protective mask, and the The bracket assembly accommodates a radio assembly for recording the user's voice, the bracket assembly is provided with a sound transmission area for transmitting the user's voice, and the sound transmission area is set corresponding to the radio assembly; the filter host is also provided with a Describe the pronunciation component of the communication connection of the radio component.
The portable split filter device according to claim 1, characterized in that:

The radio components include:

a microphone, the microphone is arranged in the bracket assembly, and is arranged corresponding to the sound transmission area, and the microphone is used to receive the voice signal sent by the user;

A voice main board, the voice main board is electrically connected to the microphone, and the voice main board is used to start or close the microphone;

The first battery is connected to the microphone and the voice main board respectively.
The portable split filter device according to claim 2, characterized in that:

The bracket assembly includes:

An inner bracket, the inner bracket is arranged on the protective mask;

An outer bracket, the outer bracket is arranged on the side of the inner bracket away from the protective mask, and is detachably connected with the inner bracket; the sound-receiving component is arranged in the outer bracket.
The portable split filter device according to claim 3, characterized in that:

The sound transmission area includes:

A first sound transmission hole, the first sound transmission hole is opened on the inner bracket, and the first sound transmission hole is set corresponding to the protective mask;

The second sound transmission hole, the second sound transmission hole is opened on the outer bracket, and the second sound transmission hole is connected with the first sound transmission hole; the first sound transmission hole corresponds to the sound collection Component settings.
The portable split filter device according to claim 4, characterized in that:

A sound transmitting tube is arranged on the outer bracket around the second sound transmitting hole, and the microphone is arranged in the sound transmitting tube.
The portable split filter device according to claim 1, characterized in that:

The filter host is provided with sound amplification holes;

The pronunciation components include:

a loudspeaker, the loudspeaker is set in the filter host and is set corresponding to the sound amplification hole, and the loudspeaker is used to amplify the voice signal;

Main board, the speaker is connected to the speaker, and the speaker is used to start and stop the speaker and adjust the volume of the speaker;

the second battery, and the speaker is respectively connected to the speaker and the host motherboard.
The portable split filter device according to claim 2, characterized in that: the sound receiving component is provided with a wireless transmitting module electrically connected to the microphone, and the sound producing component is provided with a wireless transmission module electrically connected to the sound producing component. A wireless receiving module, and the wireless transmitting module is in communication connection with the wireless receiving module.
The portable split filter device according to claim 6, characterized in that:

The filtering host also includes:

The host casing, the intake filter component, the exhaust filter component and the sound receiving assembly are arranged in the host casing; the intake filter component is located at the intake end of the intake hose; the The exhaust filter component is located at the exhaust end of the exhaust hose;

An air exhaust assembly, the air exhaust assembly is arranged in the main body casing, and the air intake end of the air exhaust assembly is connected to the air outlet end of the air intake filter component, and the air outlet end of the air exhaust assembly is connected to the air intake hose The air inlet connection;

An adjustment button, the adjustment button is connected to the host mainboard and the air exhaust assembly, and the adjustment button is used to adjust the delivery air flow of the air exhaust assembly.
The portable split filter device according to claim 6, characterized in that:

A light guide assembly for displaying a power state is provided on the host case, and the light guide assembly is electrically connected to the main board of the host.
The portable split filter device according to claim 6, wherein a notch is provided on the housing of the main unit, and a horn bracket embedded in the notch is provided on the housing of the main unit; the loudspeaker is fixed on One side of the speaker bracket is set corresponding to the sound amplification hole.