CN211935232U - Respiratory air purifier - Google Patents

Abstract

The utility model relates to an air purifier for a breathing system, comprising: a shell, two nose tubes and a filter element; a ventilation cavity is opened inside the shell, a breathing hole, an air inlet hole and an air outlet hole are opened in the shell, and two nose tubes are provided. The filter element is arranged on the outer side of the housing, the filter element is arranged in the ventilation cavity, and the ventilation cavity is communicated with the air inlet hole through the filter element; The valve is in communication with the air outlet, and the first one-way valve is used to open when the nose tube is exhaling into the ventilation cavity and to close when the nose tube is inhaling into the ventilation cavity. When the user inhales, the first one-way valve is closed, and the external air enters the ventilation cavity through the air intake hole and the filter element, so that the air entering the user's nasal cavity is filtered. When the user exhales, the first one-way valve opens, The air exhaled by the user can be quickly discharged through the air outlet, which not only realizes air filtration, but also makes it difficult for harmful substances to accumulate, which is beneficial to the user's health.

Description

Respiratory System Air Purifier

technical field

The utility model relates to the technical field of air purification, in particular to an air purifier for a breathing system.

Background technique

Traditional masks, by fitting to the human face, isolate the human nasal cavity from the outside world. However, even if the traditional mask is fitted on the face, there is a gap between the face and the face, and the air carrying germs and viruses may enter the inside of the mask from the gap. In addition, due to the exhalation of the user wearing the mask The suction and suction are located on the inside of the mask. When worn for a long time, a large amount of water vapor is easy to accumulate inside the mask, and these water vapors are easy to stick to germs, viruses or fine dust, which is not conducive to the health of users. It can be seen that the filtering effect of traditional masks is not ideal, and harmful substances are easy to accumulate inside the mask.

Utility model content

Based on this, it is necessary to provide an air purifier for a respiratory system.

An air purifier for a respiratory system, comprising: a housing, two nose tubes and at least one filter element;

The inside of the casing is provided with a ventilation cavity, the casing is provided with a breathing hole, at least one air inlet hole and at least one air outlet hole, and the two nose tubes are arranged on the outside of the casing, and each The inner side of the nose tube is communicated with one of the breathing holes, the filter element is arranged in the ventilation cavity, and the ventilation cavity is communicated with the air intake hole through the filter element;

The breathing hole is communicated with the ventilation cavity, a first one-way valve is arranged in the ventilation cavity, the ventilation cavity is communicated with the air outlet through the first check valve, and the first check valve for opening when the nose tube is exhaling into the ventilation cavity, and closing when the nose tube inhaling into the ventilation cavity.

In one embodiment, a second one-way valve is further provided in the ventilation cavity, the breathing hole communicates with the ventilation cavity through the second one-way valve, and the second one-way valve is used for The nose tube closes when exhaling into the ventilation cavity and opens when the nose tube inhales into the ventilation cavity.

In one embodiment, the second one-way valve includes a second support and a second sealing membrane, the second support is provided with a second communication port, and the breathing hole is connected to the ventilation through the second communication port The cavity is communicated, the second sealing membrane is arranged on the side of the second bracket facing the breathing hole, one side of the second sealing membrane is connected with the second bracket, and the second sealing membrane is movably fitted On the side of the second bracket facing the breathing hole, the second communication port is movably closed.

In one embodiment, the second bracket is arranged near the breathing hole, and the second bracket is arranged between the breathing hole and the filter element.

In one embodiment, the second bracket is disposed obliquely to the axial direction of the nose tube.

In one embodiment, the first one-way valve includes a first support and a first sealing membrane, the first support is provided with a first communication port, and the ventilation cavity is connected to the ventilation chamber through the first communication port. The air outlet holes are connected, the first sealing film is arranged on the side of the first bracket facing the air outlet hole, one side of the first sealing film is connected with the first bracket, and the first sealing film is movably attached It is fit to the side of the first bracket facing the air outlet, and movably closes the first communication port.

In one embodiment, the first bracket includes a bracket frame and a bracket plate, the bracket frame is connected to the side wall of the ventilation cavity, and the bracket frame is arranged around the air outlet hole, and the inner side of the bracket frame An air outlet channel is formed, the bracket plate is arranged on the inner side of the bracket frame, and the outer side of the bracket plate is connected with the side wall of the air outlet channel, the first communication port is opened on the bracket plate, the first The sealing film is movably attached to the support plate.

In one embodiment, the breathing hole is opened at the top of the casing or at a position close to the top of the casing, and the air outlet hole is opened at the bottom of the casing or close to the casing In the position of the bottom, the bracket plate is gradually inclined toward the bottom of the casing from the end away from the air outlet to the end close to the air outlet.

In one embodiment, two of the nose tubes are detachably connected to the housing.

In one embodiment, it also includes a face shield, the face shield is disposed on the outer side of the casing and connected with the casing.

The beneficial effect of the utility model is as follows: when in use, the nasal tube is inserted into the two nostrils of the user, and by arranging the first bracket in the ventilation cavity, when the user inhales, the first one-way valve is closed, so that the gas cannot escape from the outlet. The air hole enters the ventilation cavity, and the external air can only enter the ventilation cavity through the air intake hole and the filter element, so that the air entering the user's nasal cavity is filtered. When the user exhales, the first one-way valve opens, thereby allowing the user to exhale. Inhaled air can be quickly discharged through the air outlet. Since the air is filtered during the inhalation process, the exhaled air does not pass through the filter element, so that the inhalation and exhalation paths are separated, which not only realizes the air filtration, but also makes it difficult for harmful substances to accumulate. More beneficial to the user's health.

Description of drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the following briefly introduces the accompanying drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description These are just some embodiments of the present invention, and for those of ordinary skill in the art, other drawings can also be obtained from these drawings without creative labor.

1 is a schematic structural diagram of an air purifier for a respiratory system in one direction according to an embodiment;

2 is a schematic structural diagram of an air purifier for a respiratory system in another direction according to an embodiment;

3 is a schematic diagram of a three-dimensional exploded structure of an air purifier for a breathing system according to an embodiment;

4 is a schematic cross-sectional structural diagram of an air purifier for a respiratory system in one direction according to an embodiment;

5 is a schematic structural diagram of an interior direction of an air purifier for a breathing system in an inhalation state according to an embodiment;

6 is a schematic structural diagram of another direction inside the inhalation state of the air purifier of the respiratory system according to an embodiment;

7 is a schematic diagram of the internal structure of an air purifier for a respiratory system in an exhalation state according to an embodiment;

FIG. 8 is a schematic structural diagram of an air purifier for a respiratory system in one direction according to another embodiment.

Detailed ways

The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the implementations. example. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present invention.

As shown in FIGS. 1 to 4 , it is an air purifier 10 for a respiratory system according to an embodiment of the present invention, comprising: a casing 100 , two nose tubes 200 and at least one filter element 300 ; There is a ventilation cavity 101 , the housing 100 is provided with two breathing holes 102 , at least one air inlet 103 and at least one air outlet 104 , the two nose tubes 200 are arranged on the outside of the housing 100 , and The inner side of each of the nose tubes 200 is communicated with one of the breathing holes 102 , the filter element 300 is arranged in the ventilation cavity 101 , and the ventilation cavity 101 communicates with the air intake hole 103 through the filter element 300 ; The breathing hole 102 communicates with the ventilation cavity 101, the ventilation cavity 101 is provided with a first one-way valve 500, and the ventilation cavity 101 communicates with the air outlet hole 104 through the first check valve 500 , the first one-way valve 500 is used to open when the nasal tube 200 exhales into the ventilation cavity 101 , and is closed when the nasal tube 200 inhales into the ventilation cavity 101 .

Specifically, the nose tube 200 is used to be inserted into the nostrils of the human body to isolate the nostrils from the outside, the nostrils are only communicated with the space inside the nose tube 200, and the nose tube 200 is connected with the housing 100, so that the space inside the nose tube 200 is connected to the space inside the nose tube 200. The breathing holes 102 communicate with each other. The filter element 300 is connected to the housing 100, and the ventilation cavity 101 is communicated with the air intake hole 103 through the filter element 300, so that external air can enter the ventilation cavity 101 through the air intake hole 103 and the filter element 300. It is worth mentioning that, for the purpose of the ventilation cavity 101 communicates with the air intake hole 103 through the filter element 300. The filter element 300 can be placed in the air intake hole 103, or the filter element 300 can be placed in the ventilation cavity 101 near the air intake hole 103 to close the air intake hole 103. In the embodiment of FIG. 2 , how the filter element 300 closes the air intake hole 103 will be further explained. The filter element 300 is used for filtering air, and the filter element 300 can be realized by using the filter element 300 in the prior art, and the filter element 300 can filter dust particles, bacteria and viruses in the air.

In this embodiment, the breathing hole 102 communicates with the ventilation cavity 101 , so the user can inhale the air in the ventilation cavity 101 into the nasal cavity when inhaling. The first one-way valve 500 has a one-way conduction function. The first one-way valve 500 is used to open when a positive pressure is generated in the ventilation chamber 101 and to close when a negative pressure is generated in the ventilation chamber 101 . Specifically, when the user inhales, when a negative pressure is generated in the ventilation cavity 101, the first one-way valve 500 is closed under the action of the negative pressure, so that the outside air cannot enter the ventilation cavity 101 from the air outlet 104. In this way, the ventilation cavity The negative pressure in the 101 will make the outside air enter the ventilation cavity 101 through the air intake hole 103 and the filter element 300 . When the user exhales, the air pressure in the ventilation cavity 101 causes the first one-way valve 500 to open, so that the air in the ventilation cavity 101 quickly flows to the air outlet 104 through the first one-way valve 500, and then is discharged to the outside.

When in use, the nasal tube 200 is inserted into the two nostrils of the user, and by setting the first bracket in the ventilation cavity 101, when the user inhales, the first one-way valve 500 is closed, so that the gas cannot enter the ventilation cavity from the air outlet 104. In 101, the outside air can only enter the ventilation cavity 101 through the air inlet 103 and the filter element 300, so that the air entering the user's nasal cavity is filtered. When the user exhales, the first one-way valve 500 is opened, thereby allowing the user to The exhaled air can be quickly discharged through the air outlet 104. Since the air is filtered during the inhalation process, the exhaled air does not pass through the filter element 300, so that the paths of inhalation and exhalation are separated, which not only realizes the filtration of the air, but also removes harmful substances. It is not easy to accumulate and is more conducive to the health of users.

In order to further prevent the air exhaled by the user from being discharged from the filter element 300 and the air intake hole 103 , in one embodiment, a second one-way valve 400 is further provided in the ventilation cavity 101 , and the breathing hole 102 passes through the second one-way valve 400 . The direction valve 400 communicates with the ventilation cavity 101, and the second one-way valve 400 is used to close when the nasal tube 200 exhales into the ventilation cavity 101, and when the nasal tube 200 breathes into the ventilation cavity 101 Open when inhaling.

In this embodiment, the second one-way valve 400 has a one-way conduction function. The second one-way valve 400 is used to close when a positive pressure is generated in the ventilation chamber 101 , and to open when a negative pressure is generated in the ventilation chamber 101 . Specifically, when the user inhales, when a negative pressure is generated in the ventilation chamber 101 , the second one-way valve 400 is opened under the action of the negative pressure, and the first one-way valve 500 is closed, so that the outside air cannot flow from the air outlet 104 Entering the ventilation cavity 101 , the negative pressure in the ventilation cavity 101 will make the external air enter the ventilation cavity 101 through the air intake hole 103 and the filter element 300 . When the user exhales, the air pressure in the ventilation cavity 101 makes the second one-way valve 400 close and the first one-way valve 500 open. Since the second one-way valve 400 is closed, the air in the ventilation cavity 101 cannot pass through the filter element. 300 is discharged to the outside of the air outlet 104, and the air in the ventilation cavity 101 is quickly circulated to the air outlet 104 through the first one-way valve 500, and then discharged to the outside. Therefore, in this embodiment, through the cooperation of the first one-way valve 500 and the second one-way valve 400, when the user inhales, the air enters through the air intake hole 103, and is filtered by the filter element 300, while the user is exhaling. When inhaling, the air is discharged from the air outlet 104, which realizes the separation of the paths of inhalation and exhalation, which not only realizes the filtration of air, but also makes it difficult for harmful substances to accumulate, which is more beneficial to the health of users.

In order to prevent the air exhaled by the user from being discharged from the filter element 300 and the air intake hole 103 , in one embodiment, referring to FIGS. 3 to 4 , the second one-way valve 400 includes a second bracket 410 and a second sealing membrane 420 , The second bracket 410 is provided with a second communication port 401 , the breathing hole 102 communicates with the ventilation cavity 101 through the second communication port 401 , and the second sealing membrane 420 is disposed on the second bracket 410 On the side facing the breathing hole 102 , one side of the second sealing film 420 is connected with the second bracket 410 , and the second sealing film 420 is movably attached to the second bracket 410 and faces the breathing hole 102, and movably closes the second communication port 401.

In this embodiment, the second sealing film 420 is used to adhere to the side of the second bracket 410 facing the breathing hole 102 when the breathing hole 102 exhales into the ventilation cavity 101 to seal the second communication mouth 401. Specifically, one side of the second sealing membrane 420 is connected to the side of the second bracket 410 facing the breathing hole 102 , and the outer side of the second sealing membrane 420 is movably abutted against the breathing hole 102 of the second bracket 410 . In this way, as shown in FIG. 7 , when the breathing hole 102 exhales into the ventilation cavity 101, the second sealing membrane 420 is subjected to a force in the direction away from the breathing hole 102, and then is attached to the second bracket 410, and The second communication port 401 is closed. As shown in FIG. 5 and FIG. 6 , when the breathing hole 102 inhales, the action of the negative pressure causes the second sealing membrane 420 to receive a force in the direction of the exhalation hole, so that the second sealing membrane 420 Detach the second bracket 410 and open the second communication port 401, thereby realizing one-way communication.

In order to better realize the communication between the breathing hole 102 and the air intake hole 103 and enable the inhaled air to be sufficiently filtered, in one embodiment, referring to FIGS. 3 to 4 , the second bracket 410 is close to the The breathing hole 102 is arranged, and the second bracket 410 is arranged between the breathing hole 102 and the filter element 300 .

In this embodiment, since the second bracket 410 is disposed between the breathing hole 102 and the filter element 300 , the air enters through the air inlet hole 103 and is filtered by the filter element 300 , and then enters the breathing hole 102 through the second communication port 401 . The air entering the nasal cavity of the human body is fully filtered, and when the user exhales, the second sealing membrane 420 on the second bracket 410 will sufficiently block the exhaled air from circulating to the filter element 300, so that the exhaled air is quickly discharged from the first communication port To the outside of the air outlet 104, the exhaled air is prevented from passing through the filter element 300, and the exhaled water vapor is prevented from adhering to the filter element 300, thereby avoiding the growth of bacteria and the accumulation of pollutants in the ventilation cavity 101 due to high humidity and high water vapor. Happening.

In order to sufficiently block the breathing hole 102 from exhaling air to the filter element 300 , in one embodiment, the outer edge of the second bracket 410 is connected to the side wall of the ventilation cavity 101 . The connection realizes the barrier between the breathing hole 102 and the filter element 300. When the second sealing film 420 is attached to the surface of the second bracket 410, the second communication port 401 is closed, and the air exhaled from the breathing hole 102 will be blocked. No flow to filter element 300.

In order to make the second sealing film 420 adhere to the surface of the second bracket 410 efficiently and sufficiently, the second communication port 401 is closed. In one embodiment, as shown in FIG. 4 and FIG. 5 , the first The two brackets 410 are disposed obliquely to the axial direction of the nose tube 200 .

In this embodiment, the breathing hole 102 is opened at the top of the casing 100 , and the air outlet hole 104 is opened at the bottom of the casing 100 or at a position close to the bottom of the casing 100 . , the nose tube 200 is vertically arranged along the nostril direction, and the second bracket 410 is arranged obliquely, so that the second bracket 410 is inclined to the vertical direction and to the horizontal direction, so that the side of the second bracket 410 facing the breathing hole 102 is the second bracket 410. On the upper surface of the sealing film 420, one side of the second sealing film 420 is connected to the upper surface of the second bracket 410. When the user inhales, the second sealing film 420 overcomes the The bracket 410, when the user stops inhaling, the second sealing film 420 will gradually move downward under the action of gravity, abut against the second bracket 410, and close the second communication port 401, so that when the user exhales, the first The second sealing membrane 420 has been in contact with the second bracket 410 or is close to the second bracket 410, so that the breathing hole 102 and the filter element 300 can be blocked immediately, so that the second sealing membrane 420 can be efficiently and fully attached to the second bracket 410. The surface of the bracket 410 efficiently closes the second communication port 401 during exhalation.

It should be understood that when the respiratory system air purifier 10 is worn, the top of the casing 100 refers to the position of the casing 100 above the face, and the bottom of the casing 100 refers to the position of the casing 100 close to the face When the breathing system air purifier 10 is used, the upper direction of the housing 100 in the vertical direction is the direction of the top of the housing 100, and the downward direction of the housing 100 in the vertical direction is Orientation of the bottom of the housing 100 . For ease of description and understanding, the top and bottom of the housing 100 in each embodiment are defined as such.

In the above-mentioned embodiment, the second bracket 410 is disposed obliquely and inclined to the horizontal direction, so that the second sealing film 420 can be naturally attached to the second bracket 410 under the action of gravity. In some embodiments, the second bracket is arranged horizontally, so that the second sealing film can naturally fit to the second bracket under the action of gravity, and better close the second communication port. However, in the embodiment in which the second bracket 410 is inclined, the second closing membrane 420 is moved upward and separated from the second bracket 410 under the action of negative pressure. Since the initial state of the second closing membrane 420 is inclined, the gravity is in the first The component force in the moving direction of the second sealing membrane 420 is smaller than the gravity, so that the second sealing membrane 420 can be more easily separated from the second bracket 410, which facilitates the opening of the second communication port 401, so that the user can breathe more effortlessly and more smoothly .

In order to prevent the user from blocking the ventilation cavity 101 and the air outlet hole 104 during the inhalation process, and to prevent external air from being sucked into the ventilation cavity 101 through the air outlet hole 104, in one embodiment, please refer to FIG. 3 and FIG. A one-way valve 500 includes a first support 510 and a first sealing membrane 520 , the first support 510 is provided with a first communication port 501 , and the ventilation cavity 101 communicates with the air outlet through the first communication port 501 104, the first sealing film 520 is disposed on the side of the first bracket 510 facing the air outlet 104, one side of the first sealing film 520 is connected with the first bracket 510, the first The sealing film 520 is movably attached to the side of the first bracket 510 facing the air outlet 104 , and movably closes the first communication port 501 .

In this embodiment, the first sealing membrane 520 is used to separate from the side of the first bracket 510 facing the air outlet hole 104 when the breathing hole 102 exhales into the ventilation cavity 101 , so that the first communication port 501 When the breathing hole 102 is opened, when the breathing hole 102 inhales into the ventilation cavity 101 , it is attached to the side of the first bracket 510 facing the air outlet hole 104 under the action of negative pressure, and the first communication port 501 is closed. Specifically, one side of the first sealing membrane 520 is connected to the side of the first bracket 510 facing the air outlet hole 104 , and the outer side of the first sealing membrane 520 is movably abutted against the side of the first bracket 510 facing the outlet hole 104 . One side of the air hole 104, thus, as shown in FIG. 7, when the breathing hole 102 exhales into the ventilation cavity 101, the first sealing membrane 520 is subjected to a force in the direction of the air outlet hole 104, and moves toward the air outlet hole 104. The bracket 510 makes the first communication port 501 open. As shown in FIG. 5 and FIG. 6 , when the breathing hole 102 inhales, the negative pressure causes the first sealing membrane 520 to receive a force in the direction of the exhalation hole, so that the A sealing film 520 is attached to the first bracket 510 to close the first communication port 501, thereby realizing one-way communication.

In one embodiment, referring to FIG. 3 , FIG. 4 , FIG. 5 and FIG. 7 , the first bracket 510 includes a bracket frame 511 and a bracket plate 512 , and the bracket frame 511 is connected to the side wall of the ventilation cavity 101 . , and the bracket frame 511 is arranged around the air outlet hole 104 , the inner side of the bracket frame 511 forms an air outlet channel 502 , the bracket plate 512 is arranged on the inner side of the bracket frame 511 , and the outer side of the bracket plate 512 Connected to the side wall of the air outlet channel 502 , the first communication port 501 is opened on the bracket plate 512 , and the first sealing film 520 is movably attached to the bracket plate 512 .

In this embodiment, the outer side of the air outlet hole 104 is closed by the bracket frame 511, so that the ventilation cavity 101 can only communicate with the air outlet hole 104 through the air outlet channel 502 inside the bracket frame 511, so that the exhaled air can only pass through the first communication port 501 flows to the air outlet 104. During the inhalation process, when the first sealing membrane 520 closes the first communication port 501, the air can be sufficiently blocked to prevent air from entering the nasal cavity through the air outlet 104.

In one embodiment, referring to FIG. 3 , FIG. 5 and FIG. 7 , the breathing hole 102 is opened at the top of the casing 100 or at a position close to the top of the casing 100 , and the air outlet hole 104 is opened At the bottom of the casing 100 or at a position close to the bottom of the casing 100 , the bracket plate 512 gradually moves toward the casing from the end away from the air outlet 104 to the end close to the air outlet 104 . The bottom direction of the 100 is inclined.

In this embodiment, the breathing hole 102 is located at the top of the casing 100 or near the top, and the air outlet 104 is located at the bottom of the casing 100 or near the bottom, which can better match the breathing direction of the nasal cavity and is beneficial to the user's In addition, in this embodiment, the support plate 512 is inclined to the horizontal direction, and the air outlet 104 is opened on one side of the casing 100 near the bottom, so that the first sealing film 520 on the support plate 512 can Under the action of gravity, it is naturally attached to the surface of the bracket plate 512 , and the first communication port 501 is closed, so as to realize the efficient sealing of the first communication port 501 . During the user's inhalation process, the first sealing film 520 not only adheres to the surface of the bracket plate 512 under the action of negative pressure, but also adheres to the surface of the bracket plate 512 under the action of gravity, so that the first sealing film 520 can fully abut on the surface of the bracket plate 512. The surface of the bracket plate 512 makes the sealing effect of the first communication port 501 better. During the exhalation process of the user, since the initial state of the first sealing film 520 is inclined, the gravity is in the moving direction of the first sealing film 520. The component force is smaller than gravity, so that the first sealing film 520 can be more easily separated from the support plate 512 under the action of the airflow, which facilitates the opening of the first communication port 501 and makes the user's exhalation more labor-saving.

In order to be suitable for different widths of nostrils and used by different groups of people, in one embodiment, the two nasal tubes 200 are detachably connected to the housing 100 . Through the detachable connection between the nose tube 200 and the housing 100, the nose tube 200 can be replaced, and different sizes can be changed to suit the use of different groups of people, so as to be suitable for different widths of nostrils and suitable for use by different groups of people.

In order to realize the detachable connection between the nose tube and the housing, in one embodiment, the number of breathing holes is two, and each of the nose tubes is detachably inserted into one of the breathing holes, so that the inside of the nose tube is detachable. It communicates with the breathing hole, and realizes the detachable connection between the nose tube and the housing.

In order to realize the detachable connection between the nose tube 200 and the casing 100 , in one embodiment, as shown in FIG. 3 , the top of the casing 100 is provided with an installation groove 105 , and the breathing hole 102 penetrates the bottom of the installation groove 105 and the installation groove. 105 is connected, the two nose tubes 200 are connected to a mounting plate 250, the mounting plate 250 is detachably arranged in the mounting groove 105, and the middle part of the nose tube 200 is aligned with the breathing hole 102. In this way, by installing The plate 250 connects the two nose tubes 200 together. For different types of nose tubes 200 of different sizes, the widths of the mounting plates 250 are equal, so that the mounting plates 250 of different sizes can be matched with the mounting grooves 105 to achieve Compatibility between different types of nose tube 200 and the housing 100 is achieved, and the installation of the nose tube 200 is more convenient through the cooperation between the mounting plate 250 and the mounting groove 105 , thereby realizing the detachable connection between the nose tube 200 and the housing 100 .

In order to better protect the human body, the external air is isolated from the oral cavity to the outside. In one embodiment, as shown in FIG. 8 , the air purifier 10 for the respiratory system further includes a mask 600 , and the mask 600 is arranged on the housing 100 . outside, and connected to the housing 100. In this embodiment, the two sides of the mask 600 are connected with the lanyards 610 respectively. Using the air purifier 10 for the respiratory system, the two nasal tubes 200 are inserted into the two nostrils, respectively, and the mask 600 is attached to the face, and the mouth is closed. The lanyard 610 is hung on the ear, so as to seal the oral cavity and prevent the oral cavity from contacting harmful substances in the external air, thereby further improving the safety of the air purifier 10 for the respiratory system.

In order to fix the filter element in the ventilation cavity, in one embodiment, the side wall of the ventilation cavity is provided with a fixing rib protruding from the outside of the air inlet hole, the fixing rib is arranged around the air inlet hole, and the inner side of the fixing rib forms a fixing groove The filter element is arranged in the fixing groove, so that the filter element is fixed by the fixing ribs, and the filter element can close the air inlet hole 103. When the external air enters the ventilation cavity from the air inlet hole, it needs to be filtered by the filter element.

In one embodiment, referring to FIG. 3 to FIG. 7 , the number of the second brackets 410 is two, each of the second brackets 410 corresponds to one of the breathing holes 102 , and the air intake holes 103 The number of filter elements 300 is two, the number of filter elements 300 is two, the two filter elements 300 are respectively disposed on both sides of the ventilation cavity 101 , and each filter element 300 closes one of the air inlet holes 103 . Each of the second brackets 410 is disposed between the breathing holes 102 on one side and the corresponding filter element 300 . In this embodiment, the air inlet holes 103 are opened at the bottom of the casing 100 , and the breathing holes 102 are formed in the casing. On the top of the body 100 , the two second brackets 410 are respectively disposed on the outer sides of the two sides of the two breathing holes 102 , and the two second brackets 410 extend from the end close to the outer side of the breathing hole 102 to the end close to the inner side of the breathing hole 102 . In this way, on the one hand, the second sealing film 420 on the second bracket 410 can be attached to the second bracket 410 under the action of gravity, closing the second communication port 401, and on the other hand On the one hand, in the process of inhalation, the air can enter the filter element 300 from the air intake hole 103 at the bottom, and after being filtered by the filter element 300, it flows upward through the second communication port 401, so that the direction of the second communication port 401 is the same as the inhalation. The direction of the matching is conducive to smoother inhalation.

In order to separate the inhalation and exhalation paths, in one embodiment, as shown in FIG. 5 to FIG. 7 , one end of the two second brackets 410 near the bottom is connected to the outer side of the bracket frame 511 of the first bracket 510 . The surfaces are connected, and the two second brackets 410 are arranged on both sides of the bracket frame 511 , and an air outlet 503 is opened at one end of the bracket frame 511 away from the air outlet 104 , and the opening direction of the air outlet 503 faces The breathing hole 102 and the ventilation cavity 101 are communicated with the air outlet channel 502 through the air outlet 503 . In this embodiment, when the user inhales, the air filtered by the filter element 300 flows upward from both sides to the breathing holes 102, and then enters the nasal cavity, and when the user exhales, the air moves directly downward from the breathing holes 102 at the top to The air outlet of the support frame 511 is then transported to the air outlet 104 through the air outlet channel 502 for discharge. In this way, the inhalation flow path and the exhalation flow path during the breathing process are separated, so that the accumulation of water vapor in the ventilation cavity 101 is avoided, and the breeding of harmful substances such as bacteria is avoided.

The following is the structure and work flow of the respiratory system air purifier 10 in one embodiment:

Please refer to FIGS. 1 to 7 , the air purifier 10 for the respiratory system includes a housing 100 , two nose tubes 200 and two filter elements 300 . The housing 100 includes an upper housing 110 and a lower cover 120 , and the bottom of the upper housing 110 is The lower cover 120 is connected, the upper shell 110 and the inner side of the lower cover 120 form a ventilation cavity 101, the top of the upper shell 110 is provided with an installation groove 105, and the two nose tubes 200 are installed in the installation groove 105 through the installation plate 250, and the installation groove The bottom of 105 is provided with a breathing hole 102, the inner side of the nose tube 200 is communicated with the ventilation cavity 101 through the breathing hole 102, the lower cover 120 is provided with two air inlet holes 103, and the two air inlet holes 103 are arranged on the two sides of the lower cover 120. The inner side of the lower cover 120 is provided with a fixing rib around the air inlet hole 103, and the inner side of the fixing rib forms a fixing groove. Hole 103, the upper casing 110 is provided with an air outlet 104 near the lower cover 120, the air outlet 104 is aligned with the middle of the lower cover 120, and the lower cover 120 is provided with a bracket frame 511, the bracket frame 511 is arranged around the air outlet 104, the bracket An air outlet channel 502 is formed in the frame 511, a bracket plate 512 is arranged in the bracket frame 511, and a first communication port 501 is opened in the bracket plate 512. Two sides of the upper surface of the frame 511 are respectively connected to the second brackets 410, and each second bracket 410 is disposed between a filter element 300 and the breathing hole 102, and the two second brackets 410 are respectively provided with a second communication port 401, so A second sealing membrane 420 is disposed on the side of the second bracket 410 facing the breathing hole 102 .

When in use, the nasal tube 200 is inserted into the two nostrils of the user, please refer to FIG. 5 and FIG. 6 , when the user inhales, due to the negative pressure generated in the ventilation cavity 101, the first sealing membrane 520 is attached to the bracket plate 512 On the side facing the air outlet 104, the first communication port 501 is closed, and the second sealing film 420 is separated from the second bracket 410, so that the second communication port 401 is opened, so that the gas cannot enter the ventilation cavity 101 from the air outlet 104, and the outside air Through the air intake hole 103 and the filter element 300, it enters the breathing hole 102 from both sides and enters the nasal cavity, so that the air entering the user's nasal cavity is filtered; as shown in FIG. 7 , when the user exhales, the first sealing membrane 520 is in the Under the influence of the external air flow, it is separated from the support plate 512, so that the first communication port 501 is opened, and the second sealing membrane 420 is closely attached to the second support 410 under the action of exhalation, and the second communication port 401 is closed, thereby allowing the user to The exhaled air can be quickly discharged through the air outlet 104, and the exhaled air is prevented from blowing to the filter element 300. Since the air is filtered during the inhalation process, the exhaled air does not pass through the filter element 300, so that the inhaled and exhaled air are separated. It not only realizes the filtration of air, but also makes it difficult for harmful substances to accumulate, which is more beneficial to the health of users.

The technical features of the above-described embodiments can be combined arbitrarily. For the sake of brevity, all possible combinations of the technical features in the above-described embodiments are not described. However, as long as there is no contradiction between the combinations of these technical features, All should be regarded as the scope described in this specification.

The above-mentioned embodiments only represent several embodiments of the present utility model, and the descriptions thereof are specific and detailed, but should not be construed as a limitation on the scope of the utility model patent. It should be pointed out that for those of ordinary skill in the art, without departing from the concept of the present invention, several modifications and improvements can be made, which all belong to the protection scope of the present invention. Therefore, the protection scope of the patent for this utility model shall be subject to the appended claims.

Claims (10)

1. a respiratory system air purifier, is characterized in that, comprises: housing, two nose tubes and at least one filter element; The inside of the casing is provided with a ventilation cavity, the casing is provided with a breathing hole, at least one air inlet hole and at least one air outlet hole, and the two nose tubes are arranged on the outside of the casing, and each The inner side of the nose tube is communicated with one of the breathing holes, the filter element is arranged in the ventilation cavity, and the ventilation cavity is communicated with the air intake hole through the filter element; The breathing hole is communicated with the ventilation cavity, a first one-way valve is arranged in the ventilation cavity, the ventilation cavity is communicated with the air outlet through the first check valve, and the first check valve for opening when the nose tube is exhaling into the ventilation cavity, and closing when the nose tube inhaling into the ventilation cavity. 2 . The air purifier for the respiratory system according to claim 1 , wherein a second one-way valve is further provided in the ventilation cavity, and the breathing hole is connected to the ventilation cavity through the second one-way valve. 3 . In communication, the second one-way valve is configured to close when the nasal tube is exhaling into the ventilation cavity and open when the nasal tube is inhaling into the ventilation cavity. 3 . The air purifier for the respiratory system according to claim 2 , wherein the second one-way valve comprises a second bracket and a second sealing membrane, the second bracket is provided with a second communication port, and the The breathing hole communicates with the ventilation cavity through the second communication port, the second sealing film is arranged on the side of the second bracket facing the breathing hole, and one side of the second sealing film is connected to the first sealing film. The two brackets are connected, and the second sealing membrane is movably attached to the side of the second bracket facing the breathing hole, and movably closes the second communication port. 4 . The air purifier for the respiratory system according to claim 3 , wherein the second bracket is arranged near the breathing hole, and the second bracket is arranged between the breathing hole and the filter element. 5 . 5 . The air purifier for the respiratory system according to claim 3 , wherein the second bracket is disposed obliquely to the axial direction of the nasal tube. 6 . 6 . The air purifier for the respiratory system according to claim 1 , wherein the first one-way valve comprises a first support and a first sealing membrane, and the first support is provided with a first communication port, so the The ventilation cavity is communicated with the air outlet through the first communication port, the first sealing film is arranged on the side of the first bracket facing the air outlet, and one side of the first sealing film The first bracket is connected, and the first sealing film is movably attached to the side of the first bracket facing the air outlet, and movably closes the first communication port. 7. The respiratory system air purifier according to claim 6, wherein the first bracket comprises a bracket frame and a bracket plate, the bracket frame is connected to the side wall of the ventilation cavity, and the bracket frame Around the air outlet hole, an air outlet channel is formed on the inner side of the bracket frame, the bracket plate is arranged on the inner side of the bracket frame, and the outer side of the bracket plate is connected with the side wall of the air outlet channel, and the first A communication port is opened on the bracket plate, and the first sealing film is movably attached to the bracket plate. 8 . The air purifier of the respiratory system according to claim 7 , wherein the breathing hole is opened at the top of the casing or at a position close to the top of the casing, and the air outlet is opened at the top of the casing. 9 . The bottom of the casing is opened at a position close to the bottom of the casing, and the bracket plate is gradually inclined toward the bottom of the casing from the end away from the air outlet to the end close to the air outlet. 9 . The air purifier for the respiratory system according to claim 1 , wherein the two nose tubes are detachably connected to the housing. 10 . 10. The respiratory system air purifier according to any one of claims 1-9, characterized in that it further comprises a mask, the mask is arranged on the outer side of the housing and is connected to the housing.

Images