Smoke filtering device and electronic atomization device

Abstract

The application discloses a smoke filtering device and an electronic atomization device. The smoke filtering device comprises a shell, a filtering cavity arranged in the shell, a gas outlet and an exhaust outlet communicated with the filtering cavity; an adjusting structure arranged at least partially in the shell, the adjusting structure and the shell cooperating to form a first cavity, the gas outlet being communicated with the first cavity, the adjusting structure being configured to adjust the volume of the first cavity to change the air pressure in the first cavity; a first one-way air passing structure arranged at the gas outlet or between the gas outlet and the first cavity, the first one-way air passing structure being used for conveying the smoke discharged from the gas outlet into the first cavity; a second one-way air passing structure arranged between the first cavity and the filtering cavity, the second one-way air passing structure being used for conveying the smoke into the filtering cavity; and a filtering structure arranged in the filtering cavity and located between the second one-way air passing structure and the exhaust outlet. The smoke filtering device can improve the gas discharge efficiency during use.

Description

Technical Field

[0001] This application relates to the field of electronic atomization technology, and in particular to a smoke filtration device and an electronic atomization device. Background Technology

[0002] The smoke exhaled by smokers typically contains harmful substances such as nicotine, tar, and carbon monoxide, which can cause distress and harm to non-smokers in the surrounding environment. To address this, relevant technologies have proposed smoke filtration devices for filtering the smoke exhaled by smokers. Specifically, smokers exhale into the smoke filtration device through a nozzle. The exhaled smoke is filtered by the gas diffusion flow through the filtration structure within the device and finally discharged through an exhaust port, thereby reducing the amount of harmful substances in the smoke entering the smoker's surrounding environment.

[0003] However, traditional smoke filtering devices still have the following problems: 1. During use, due to the size of the exhalation port, it is difficult for users to quickly exhale all the smoke in their mouths into the smoke filtering device. Users can only slowly exhale into the smoke filtering device until all the smoke in their mouths is exhaled into the smoke filtering device and filtered by the filter structure before their mouths leave the exhalation port. The exhalation efficiency is low, and if the exhalation speed is too fast, some smoke will flow back through the exhalation port, resulting in some smoke (the backflowing smoke) flowing into the surrounding environment without being filtered by the filter structure; 2. During use, because the smoke exhaled into the smoke filtering device relies on the gas diffusion flow through the filter structure set in the smoke filtering device for filtration, the smoke exhaled into the smoke filtering device needs to take a long time to be discharged through the exhaust port. If the user continuously exhales smoke into the smoke filtering device in a short period of time, too much smoke will accumulate in the smoke filtering device and cannot be discharged quickly, which can easily lead to smoke backflow through the exhaust port and a deterioration in the smoke filtration effect. Utility Model Content

[0004] This application aims to at least solve one of the technical problems existing in the prior art. To this end, this application proposes a smoke filtration device and an electronic atomizing device, wherein the smoke filtration device can improve the exhaust efficiency.

[0005] The flue gas filtration device according to a first aspect embodiment of this application includes: The housing has an internal filter chamber, and the housing has an exhaust port and an exhaust port communicating with the filter chamber. An adjustment structure is at least partially disposed inside the housing, the adjustment structure cooperates with the housing to form a first chamber, the air outlet opens into the first chamber, and the adjustment structure is configured to adjust the volume of the first chamber to change the air pressure inside the first chamber; A first one-way air passage structure is disposed at the air outlet or between the air outlet and the first chamber. The first one-way air passage structure is used to deliver the flue gas expelled from the air outlet into the first chamber. A second one-way gas passage structure is disposed between the first chamber and the filter chamber, and the second one-way gas passage structure is used to deliver flue gas into the filter chamber; and A filter structure is disposed within the filter chamber and located between the second one-way air passage structure and the exhaust port.

[0006] The smoke filtration device according to the embodiments of this application has at least the following beneficial effects: During use, the user exhales smoke through the exhalation port and seals the port with their mouth. During exhalation, the volume of the first chamber is increased by adjusting the structure to reduce the air pressure inside the first chamber, making the air pressure inside the first chamber lower than the external atmospheric pressure. This creates a negative pressure environment inside the first chamber, which quickly draws the smoke exhaled by the user into the first chamber. Subsequently, the volume of the first chamber is reduced by adjusting the structure to increase the air pressure inside the first chamber, making the air pressure inside the first chamber higher than the external atmospheric pressure. This creates a positive pressure environment inside the first chamber, which quickly sends the smoke from the first chamber into the filter chamber for filtration. The first one-way airflow structure prevents the smoke in the first chamber from flowing back to the exhalation port, and the second one-way airflow structure prevents the smoke in the filter chamber from flowing back into the first chamber. Compared to traditional smoke filtration devices, the smoke filtration device of this application improves exhalation efficiency during use, thereby improving the user experience.

[0007] According to some embodiments of this application, the adjustment structure and the housing further cooperate to form a second chamber, the second chamber being connected to the filter chamber, and the adjustment structure is configured to adjust the volume of the second chamber to change the air pressure inside the second chamber, so that the air pressure on the side of the filter structure near the exhaust port is less than the air pressure on the side of the filter structure near the second one-way air passage structure.

[0008] According to some embodiments of this application, the second chamber is connected to the region of the filter chamber located between the filter structure and the second one-way air passage structure, and a third one-way air passage structure is provided between the second chamber and the filter chamber, the third one-way air passage structure being used to deliver airflow to the region of the filter chamber located between the filter structure and the second one-way air passage structure.

[0009] According to some embodiments of this application, the interior of the housing is provided with a communicating air passage, one end of which is connected to the exhaust port, and the other end of which is connected to the second chamber.

[0010] According to some embodiments of this application, the end of the connecting air passage away from the second chamber is inclined and faces the air inlet end of the exhaust port; or, The interior of the housing is provided with a flow guiding structure at the end of the connecting air passage away from the second chamber. The flow guiding structure is used to guide the airflow discharged from the connecting air passage to the air inlet of the exhaust port.

[0011] According to some embodiments of this application, the inner wall of the filter chamber is provided with a collection groove for collecting gas at the exhaust port, and the collection groove is connected to the exhaust port.

[0012] According to some embodiments of this application, the adjustment structure includes a piston and a drive structure. The housing has a receiving cavity corresponding to the piston. The first one-way air passage structure is disposed at one end of the receiving cavity. The piston is movably disposed inside the receiving cavity. The piston divides the receiving cavity into a first chamber and a second chamber. The drive structure is used to drive the piston to move along the length direction of the receiving cavity so that the volume changes of the first chamber and the second chamber are negatively correlated.

[0013] According to some embodiments of this application, the drive structure includes an operating part, a transmission part, and a connecting part. The operating part is movably disposed on the outside of the housing and can move along the length direction of the receiving cavity. The transmission part is movably disposed inside the housing and extends along the length direction of the receiving cavity. A clearance hole is provided at the end of the receiving cavity away from the first one-way venting structure. A sealing element is provided at the clearance hole. The transmission part passes through the sealing element. One end of the transmission part extends into the second chamber and is connected to the piston. One end of the connecting part is connected to the other end of the transmission part. The other end of the connecting part is connected to the operating part. A clearance groove penetrating the side wall of the housing is provided on the side of the housing corresponding to the connecting part.

[0014] According to some embodiments of this application, the piston has a first extreme position close to the first one-way venting structure and far from the seal, and a second extreme position far from the first one-way venting structure and close to the seal. An elastic reset member is provided inside the housing corresponding to the connecting portion or the piston. The elastic reset member is used to drive the piston to move to the first extreme position.

[0015] According to some embodiments of this application, the elastic reset member is a compression spring, a first abutment is provided at one end of the connecting portion near the operating portion, a mounting groove is provided inside the housing that is independent of the receiving cavity and extends along the length direction of the receiving cavity, the first abutment is slidably disposed in the mounting groove, a second abutment is provided at one end of the mounting groove away from the first one-way vent structure, the compression spring is disposed in the mounting groove, one end of the compression spring abuts against the first abutment, and the other end of the compression spring abuts against the second abutment.

[0016] According to some embodiments of this application, the first one-way air passage structure includes a sealing part and a first blocking plate. The first chamber has an opening at one end near the air outlet. The sealing part is disposed between the air outlet and the opening. A first vent is provided on the sealing part. The first blocking plate is rotatably and openably disposed on the side of the first vent away from the air outlet. The first blocking plate is configured to open or close the first vent under the impact of airflow.

[0017] According to some embodiments of this application, the second one-way air passage structure includes a second baffle plate and a second vent disposed between the first chamber and the filter chamber. The second baffle plate is rotatably and openably disposed on the side of the second vent away from the first chamber. The second baffle plate is configured to open or close the second vent under the impact of airflow.

[0018] According to some embodiments of this application, the third one-way air passage structure includes a third baffle plate and a third vent disposed between the second chamber and the filter chamber. The third baffle plate is rotatably and openably disposed on the side of the third vent away from the second chamber. The third baffle plate is configured to open or close the third vent under the impact of airflow.

[0019] According to some embodiments of this application, the filter structure includes a filter screen that extends curvedly along the length of the receiving cavity within the filter chamber.

[0020] An electronic atomizing device according to a second aspect of this application includes a smoke filtration device according to the first aspect of this application described above. The electronic atomizing device further includes an atomizing channel, a liquid storage chamber, and an atomizing core disposed inside the housing. The housing is provided with a suction port communicating with the outlet end of the atomizing channel. The atomizing core is communicating with the liquid storage chamber. The atomizing core is used to heat and atomize the atomizing liquid supplied by the liquid storage chamber to form an aerosol leading to the atomizing channel.

[0021] Additional aspects and advantages of this application will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of this application. Attached Figure Description

[0022] The above and / or additional aspects and advantages of this application will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which: Figure 1 This is a cross-sectional schematic diagram of an electronic atomizing device according to an embodiment of this application; Figure 2 yes Figure 1 A partial schematic diagram of the structure shown; Figure 3 yes Figure 1 The diagram shows the airflow direction when the structure shown injects flue gas into the exhaust port and drives the piston to move from the first limit position to the second limit position. Figure 4 yes Figure 1 The diagram shows the airflow direction when the structure drives the piston to move from the second limit position to the first limit position. Figure 5 This is a cross-sectional schematic diagram of an electronic atomizing device according to another embodiment of this application; Figure 6 yes Figure 5 The diagram shows the airflow direction when the structure shown injects flue gas into the exhaust port and drives the piston to move from the first limit position to the second limit position. Figure 7 yes Figure 5 The diagram shows the airflow direction when the structure drives the piston to move from the second limit position to the first limit position.

[0023] Figure label: The components include: housing 100, filter chamber 110, collection tank 111, second baffle plate 112, third baffle plate 113, air outlet 120, exhaust port 130, connecting air passage 140, flow guiding structure 141, clearance groove 150, mounting groove 160, second abutment part 161, atomizing channel 170, liquid storage chamber 180, and suction port 190. First chamber 200, opening 210; Second chamber 300; Piston 410, operating part 420, transmission part 430, connecting part 440, first abutting part 441, sealing element 450, compression spring 460; Sealing part 510, first vent 511, first baffle plate 520; Second vent 600; Third ventilation port 700; Filter size 800; Atomizer core 900. Detailed Implementation

[0024] The embodiments of this application are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this application, and should not be construed as limiting this application.

[0025] In the description of this application, it should be understood that if directional descriptions are involved, such as up, down, front, back, left, right, etc., indicating the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings, it is only for the convenience of describing this application and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0026] In the description of this application, if words such as several, greater than, less than, exceeding, above, below, or within appear, "several" means one or more, "more than" means two or more, "greater than," "less than," "exceeding," etc. are understood to exclude the number itself, and "above," "below," "within," etc. are understood to include the number itself.

[0027] In the description of this application, the use of terms such as "first" and "second" is for the purpose of distinguishing technical features only, and should not be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated or the order of the technical features indicated.

[0028] In the description of this application, unless otherwise expressly defined, terms such as "setup," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this application in conjunction with the specific content of the technical solution.

[0029] Reference Figures 1 to 7 The flue gas filtration device according to an embodiment of this application includes a housing 100, an adjustment structure, a first one-way gas passage structure, a second one-way gas passage structure, and a filtration structure.

[0030] Specifically, the housing 100 has a filter chamber 110 inside, an air outlet 120 and an exhaust port 130 communicating with the filter chamber 110 on the housing 100, an adjustment structure is at least partially disposed inside the housing 100, and the adjustment structure cooperates with the housing 100 to form a first chamber 200, the air outlet 120 leads to the first chamber 200, and the adjustment structure is configured to adjust the volume of the first chamber 200 to change the air pressure inside the first chamber 200, and a first one-way air passage structure is disposed at the air outlet 120. Alternatively, a first one-way air passage structure is disposed between the exhaust port 120 and the first chamber 200. The first one-way air passage structure is used to deliver the flue gas expelled from the exhaust port 120 into the first chamber 200. The second one-way air passage structure is disposed between the first chamber 200 and the filter chamber 110. The second one-way air passage structure is used to deliver the flue gas into the filter chamber 110. The filter structure is disposed in the filter chamber 110 and located between the second one-way air passage structure and the exhaust port 130. The filter structure is used to filter the flue gas delivered to the filter chamber 110.

[0031] In use, the user exhales smoke through the exhalation port 120 and seals the exhalation port 120 with their mouth. During the exhalation process, the volume of the first chamber 200 is increased by adjusting the structure to reduce the air pressure inside the first chamber 200, making the air pressure inside the first chamber 200 lower than the external atmospheric pressure. At this time, a negative pressure environment is formed inside the first chamber 200, which can quickly absorb the smoke exhaled by the user through the exhalation port 120 into the first chamber 200. Subsequently, the volume of the first chamber 200 is reduced by adjusting the structure to increase the air pressure inside the first chamber 200, making the air pressure inside the first chamber 200 higher than the external atmospheric pressure. At this time, a positive pressure environment is formed inside the first chamber 200, which can quickly send the smoke in the first chamber 200 into the filter chamber 110 and filter it through the filter structure. The first one-way air passage structure prevents the flue gas in the first chamber 200 from flowing back to the exhaust port 120, and the second one-way air passage structure prevents the flue gas in the filter chamber 110 from flowing back into the first chamber 200. Compared with traditional flue gas filtration devices, the flue gas filtration device of this application can improve the exhaust efficiency during use, thereby improving the user experience.

[0032] It should be noted that the user's mouth can release the blockage of the exhalation port 120 before the volume of the first chamber 200 is reduced by adjusting the structure, or the user can release the blockage of the exhalation port 120 after the volume of the first chamber 200 is reduced by adjusting the structure.

[0033] Reference Figures 1 to 7In some embodiments, the adjustment structure and the housing 100 also cooperate to form a second chamber 300, which is connected to the filter chamber 110. The adjustment structure is configured to adjust the volume of the second chamber 300 to change the air pressure in the second chamber 300, so that the air pressure on the side of the filter structure near the exhaust port 130 is less than the air pressure on the side of the filter structure near the second one-way air passage structure. As the user exhales smoke through the exhaust port 120, the volume of the first chamber 200 can be increased by adjusting the structure, while the volume of the second chamber 300 can be changed by adjusting the structure. This changes the air pressure in the second chamber 300, making the air pressure on the side of the filter structure near the exhaust port 130 lower than the air pressure on the side of the filter structure near the second one-way air passage structure. This allows the smoke trapped in the filter chamber 110 to be quickly filtered through the filter structure and discharged through the exhaust port 130, preventing the accumulation of too much unfiltered smoke in the filter chamber 110. Consequently, the filtration effect of the smoke is prevented from deteriorating due to the accumulation of too much unfiltered smoke in the filter chamber 110.

[0034] Reference Figures 1 to 4 In some embodiments, the second chamber 300 is connected to the area of ​​the filter chamber 110 located between the filter structure and the second one-way air passage structure, and a third one-way air passage structure is provided between the second chamber 300 and the filter chamber 110 for delivering airflow to the area of ​​the filter chamber 110 located between the filter structure and the second one-way air passage structure. During the process of the user exhaling smoke through the exhaust port 120, the volume of the first chamber 200 can be increased by adjusting the structure, while the volume of the second chamber 300 can be decreased by adjusting the structure. This increases the air pressure inside the second chamber 300, making it greater than the external atmospheric pressure. A positive pressure environment is then created within the second chamber 300, resulting in a higher-velocity airflow towards the area of ​​the filter chamber 110 located between the filter structure and the second one-way air passage structure. Consequently, the air pressure on the side of the filter structure closer to the second one-way air passage structure is greater than the air pressure on the side closer to the exhaust port 130. This causes the smoke in the filter chamber 110 located on the side closer to the second one-way air passage structure to permeate towards the side closer to the exhaust port 130 under pressure, thus improving the smoke filtration efficiency and reducing smoke residue. The third one-way air passage structure prevents the smoke in the filter chamber 110 from flowing back into the second chamber 300.

[0035] Reference Figures 5 to 7In some other embodiments, the housing 100 is provided with a connecting air passage 140, one end of which is connected to the exhaust port 130, and the other end of which is connected to the second chamber 300. During the process of the user exhaling smoke through the exhaust port 120, the volume of the first chamber 200 can be increased by adjusting the structure, while the volume of the second chamber 300 can be decreased by adjusting the structure to increase the air pressure inside the second chamber 300, making the air pressure inside the second chamber 300 greater than the external atmospheric pressure. At this time, a positive pressure environment is formed inside the second chamber 300, thereby creating a high-velocity airflow towards the exhaust port 130. Based on Bernoulli's principle, the high-velocity airflow towards the exhaust port 130 can adsorb the gas (i.e., the filtered smoke) in the area of ​​the filter chamber 110 located between the filter structure and the exhaust port 130. This results in the air pressure on the side of the filter structure closer to the exhaust port 130 being lower than the air pressure on the side of the filter structure closer to the second one-way air passage structure. Furthermore, by increasing the volume of the second chamber 300 through structural adjustment, the air pressure within the second chamber 300 can be reduced, making it lower than the external atmospheric pressure. This creates a negative pressure environment within the second chamber 300, allowing the gas in the area between the filter structure and the exhaust port 130 in the connecting air passage 140 to be adsorbed. This allows the filtered flue gas in the filter chamber 110 to be drawn into the connecting air passage 140 and the second chamber 300. Consequently, the air pressure on the side of the filter structure near the exhaust port 130 is lower than the air pressure on the side of the filter structure near the second one-way air passage structure. When the air pressure on the side of the filter structure near the exhaust port 130 is lower than the air pressure on the side of the filter structure near the second one-way air passage structure, the flue gas in the filter chamber 110 located on the side of the filter structure near the second one-way air passage structure can, under pressure, permeate towards the side of the filter structure near the exhaust port 130. This improves the filtration efficiency of the flue gas and reduces flue gas residue. The filtered flue gas drawn into the connecting airway 140 and the second chamber 300 can be discharged through the exhaust port 130 when the volume of the second chamber 300 is reduced by the adjustment structure.

[0036] In some embodiments, the end of the connecting airway 140 away from the second chamber 300 is inclined and faces the air inlet end of the exhaust port 130 so that the airflow discharged from the connecting airway 140 can be smoothly discharged through the exhaust port 130.

[0037] Reference Figures 5 to 7In some other embodiments, a flow guide structure 141 is provided inside the housing 100 at the end of the connecting air passage 140 away from the second chamber 300. The flow guide structure 141 is used to guide the airflow discharged from the connecting air passage 140 to the air inlet of the exhaust port 130, so that the airflow discharged from the connecting air passage 140 can be smoothly discharged through the exhaust port 130. Specifically, the flow guide structure 141 can be a blocking block with an inclined flow guide surface or an arc-shaped flow guide surface.

[0038] Reference Figure 1 as well as Figures 3 to 7 In some embodiments, the exhaust port 130 is located at the bottom of the housing 100. Of course, the exhaust port 130 is also located on the side of the housing 100 and is spaced apart from the port of the connecting air passage 140 at the end away from the second chamber 300.

[0039] Reference Figures 5 to 7 In some embodiments, the inner wall of the filter chamber 110 is provided with a collection groove 111 for collecting gas at the exhaust port 130, and the collection groove 111 is connected to the exhaust port 130. In use, the filtered flue gas can be collected at the collection groove 111 provided at the exhaust port 130. When the volume of the second chamber 300 is reduced by adjusting the structure, since the filtered flue gas has been pre-collected at the collection groove 111 provided at the exhaust port 130, the adsorption effect generated by the high-velocity airflow from the second chamber 300 to the exhaust port 130 can more quickly and efficiently remove the filtered flue gas.

[0040] Reference Figures 1 to 7 In some embodiments, the adjustment structure includes a piston 410 and a drive structure. A receiving cavity is provided inside the housing 100 corresponding to the piston 410. A first one-way gas passage structure is located at one end of the receiving cavity. The piston 410 is movably disposed inside the receiving cavity, dividing the receiving cavity into a first chamber 200 and a second chamber 300. The drive structure drives the piston 410 to move along the length direction of the receiving cavity (the X direction shown in the figure), so that the volume changes of the first chamber 200 and the second chamber 300 are negatively correlated. The length direction of the receiving cavity can be the longitudinal direction of the flue gas filtration device, and the extension direction of the filter chamber 110 is consistent with the length direction of the receiving cavity. In use, simply driving the piston 410 along the length direction of the receiving cavity via the drive structure can increase the volume of the first chamber 200 while decreasing the volume of the second chamber 300, or decrease the volume of the first chamber 200 while increasing the volume of the second chamber 300, thereby reducing operational difficulty.

[0041] Specifically, the structure of piston 410 can be referenced from the structure of syringes, cylinders, etc., and will not be elaborated here.

[0042] Reference Figures 1 to 7 In some embodiments, the drive structure includes an operating part 420, a transmission part 430, and a connecting part 440. The operating part 420 is movably disposed on the outside of the housing 100 and can move along the length of the receiving cavity. The transmission part 430 is movably disposed inside the housing 100 and extends along the length of the receiving cavity. A clearance hole is provided at the end of the receiving cavity away from the first one-way venting structure, and a sealing element 450 is provided at the clearance hole. The transmission part 430 passes through the sealing element 450. One end of the transmission part 430 extends into the second chamber 300 and is connected to the piston 410. One end of the connecting part 440 is connected to the other end of the transmission part 430, and the other end of the connecting part 440 is connected to the operating part 420. A clearance groove 150 penetrating the side wall of the housing 100 is provided on the side of the housing 100 corresponding to the connecting part 440. In use, the user applies force to the operating part 420 to drive the piston 410 to move along the length of the receiving cavity. The sealing element 450 is provided to ensure the sealing of the second chamber 300.

[0043] Reference Figures 1 to 7 In some of these embodiments, the transmission part 430 is rod-shaped.

[0044] Reference Figures 1 to 7 In some embodiments, the piston 410 has a first extreme position close to the first one-way venting structure and away from the seal 450, and a second extreme position away from the first one-way venting structure and close to the seal 450. An elastic reset member is provided inside the housing 100 corresponding to the connecting portion 440 or the piston 410. The elastic reset member is used to drive the piston 410 to move to the first extreme position. In use, the user only needs to apply force to the operating portion 420 to drive the piston 410 to move to the second extreme position. When the user removes the external force applied to the operating portion 420, the piston 410 can move back to the first extreme position under the drive of the elastic reset member, thereby reducing the user's operation. Specifically, when the piston 410 moves to the first extreme position, compared to when the piston 410 is in the second extreme position, the volume of the first chamber 200 decreases and the volume of the second chamber 300 increases; when the piston 410 moves to the second extreme position, compared to when the piston 410 is in the first extreme position, the volume of the first chamber 200 increases and the volume of the second chamber 300 decreases.

[0045] Reference Figures 1 to 7In some embodiments, the elastic reset member is a compression spring 460. The end of the connecting part 440 near the operating part 420 is provided with a first abutment part 441. The housing 100 is provided with a mounting groove 160 that is independent of the receiving cavity and extends along the length direction of the receiving cavity. The first abutment part 441 is slidably disposed in the mounting groove 160. The end of the mounting groove 160 away from the first one-way air passage structure is provided with a second abutment part 161. The compression spring 460 is disposed in the mounting groove 160. One end of the compression spring 460 abuts against the first abutment part 441, and the other end of the compression spring 460 abuts against the second abutment part 161.

[0046] It should be noted that in some other embodiments, the compression spring 460 may also be sleeved on the transmission part 430. Specifically, one end of the compression spring 460 abuts against the piston 410, and the other end of the compression spring 460 abuts against the inner wall of the receiving cavity at the end away from the first one-way air passage structure.

[0047] It should be noted that in some other embodiments, the elastic reset member can also be a tension spring. Specifically, the connecting part 440 is provided with a first mounting part at one end near the operating part 420, and the mounting groove 160 is provided with a second mounting part at one end near the first one-way air passage structure. The tension spring is disposed in the mounting groove 160, with one end of the tension spring connected to the first mounting part and the other end of the tension spring connected to the second mounting part.

[0048] It should be noted that, in some other embodiments, the drive structure includes a motor and a transmission assembly disposed inside the housing 100. The input end of the transmission assembly is connected to the output shaft of the motor, and the output end of the transmission assembly is connected to the piston 410. This eliminates the need for the user to manually drive the piston 410 to move along the length of the receiving cavity. Specifically, a control device can be used to control the motor via buttons or knobs, thereby controlling the direction of movement of the piston 410.

[0049] Specifically, the transmission component can be a gear and rack assembly, a lead screw assembly, or other transmission structures that can convert rotary motion into linear motion.

[0050] It should be noted that, in some other embodiments, the adjustment structure includes a first hollow bladder and a first pump body. The first hollow bladder is elastic, and the first hollow bladder and the shell 100 enclose a first chamber 200. The first pump body is used to pump a filling medium into or aspirate the filling medium from the first hollow bladder to change the volume of the first chamber 200. When the filling medium is pumped into the first hollow bladder through the first pump body, the volume of the first hollow bladder increases, thereby reducing the volume of the first chamber 200; when the filling medium is aspirated from the first hollow bladder through the first pump body, the volume of the first hollow bladder decreases, thereby increasing the volume of the first chamber 200.

[0051] Specifically, it can be used in conjunction with a control device to control the first pump body to pump the filling medium into the first hollow bladder or to aspirate the filling medium from the first hollow bladder via buttons or knobs.

[0052] It should be noted that, in some other embodiments, the adjustment structure includes a second hollow bladder and a second pump body. The second hollow bladder is elastic, and the second hollow bladder and the shell 100 enclose a second chamber 300. The second pump body is used to pump a filling medium into or aspirate the filling medium from the second hollow bladder to change the volume of the second chamber 300. When the filling medium is pumped into the second hollow bladder by the second pump body, the volume of the second hollow bladder increases, thereby reducing the volume of the second chamber 300; when the filling medium is aspirated from the second hollow bladder by the second pump body, the volume of the second hollow bladder decreases, thereby increasing the volume of the second chamber 300.

[0053] Specifically, it can be used in conjunction with a control device to control the second pump body to pump the filling medium into the second hollow bladder or to aspirate the filling medium from the second hollow bladder via buttons or knobs.

[0054] Reference Figures 1 to 7 In some embodiments, the first one-way air passage structure includes a sealing part 510 and a first baffle plate 520. The first chamber 200 has an opening 210 at one end near the exhaust port 120. The sealing part 510 is disposed between the exhaust port 120 and the opening 210. A first vent 511 is provided on the sealing part 510. The first baffle plate 520 is rotatably disposed on the side of the first vent 511 away from the exhaust port 120. The first baffle plate 520 is configured to open or close the first vent 511 under the impact of airflow. Its structure is simple and can prevent the flue gas in the first chamber 200 from flowing back to the exhaust port 120.

[0055] Specifically, the first baffle plate 520 is located on the side of the first vent 511 away from the exhaust port 120. The first baffle plate 520 is rotatably connected to the sealing part 510. Based on the usage posture of the smoke filter device (the exhaust port 120 is located above the receiving cavity), the first baffle plate 520 can open the first vent 511 under its own gravity when it is not impacted by the airflow, so as to reduce the resistance encountered by the user when exhaling through the exhaust port 120.

[0056] In some embodiments, the sealing portion 510 is an elastic element made of rubber or silicone. The first blocking plate 520 is made of the same material as the sealing portion 510 and is integrally formed into the sealing portion 510, so that the first blocking plate 520 can open or close the first vent 511 when impacted by airflow. Specifically, when the first blocking plate 520 is not impacted by airflow, the projection of the first blocking plate 520 along the length of the receiving cavity at least partially falls into the first vent 511, ensuring that when airflow from the first chamber 200 to the first vent 511 impacts the first blocking plate 520, the first blocking plate 520 can close the first vent 511.

[0057] It should be noted that in some other embodiments, the first one-way gas passage structure may also be a duckbill valve or other types of normally closed one-way valve.

[0058] Reference Figures 1 to 7 In some embodiments, the second unidirectional airflow structure includes a second baffle plate 112 and a second vent 600 disposed between the first chamber 200 and the filter chamber 110. The second baffle plate 112 is rotatably disposed on the side of the second vent 600 away from the first chamber 200, and is configured to open or close the second vent 600 under the impact of airflow. Its structure is simple and can prevent flue gas in the filter chamber 110 from flowing back into the first chamber 200.

[0059] Specifically, the second baffle plate 112 is located inside the filter chamber 110. Based on the usage posture of the flue gas filter (the exhaust port 120 is located above the receiving chamber), the upper end of the second baffle plate 112 is rotatably connected to the area of ​​the inner wall of the filter chamber 110 above the second vent 600, so that when the second baffle plate 112 is not impacted by the airflow, it can close the second vent 600 under its own gravity.

[0060] Specifically, the second baffle plate 112 is rotatably connected to the inner wall of the filter chamber 110 via a pivot shaft.

[0061] It should be noted that in some other embodiments, a torsion spring may also be provided at the pivot of the second blocking plate 112 so that the second blocking plate 112 remains in the position of closing the second vent 600 when it is not subjected to airflow impact.

[0062] It should be noted that in some other embodiments, the second one-way gas passage structure may also be a duckbill valve or other types of normally closed one-way valve.

[0063] Reference Figures 1 to 4In some embodiments, the third unidirectional air passage structure includes a third baffle plate 113 and a third vent 700 disposed between the second chamber 300 and the filter chamber 110. The third baffle plate 113 is rotatably disposed on the side of the third vent 700 away from the second chamber 300, and is configured to open or close the third vent 700 under the impact of airflow. Its structure is simple and can prevent flue gas in the filter chamber 110 from flowing back into the second chamber 300.

[0064] Specifically, the third baffle plate 113 is located inside the filter chamber 110. Based on the usage posture of the flue gas filter (the exhaust port 120 is located above the receiving chamber), the upper end of the third baffle plate 113 is rotatably connected to the area of ​​the inner wall of the filter chamber 110 above the third vent 700, so that when the third baffle plate 113 is not impacted by the airflow, it can close the third vent 700 under its own gravity.

[0065] Specifically, the third baffle plate 113 is rotatably connected to the inner wall of the filter chamber 110 via a pivot shaft.

[0066] It should be noted that in some other embodiments, a torsion spring may also be provided at the pivot of the third blocking plate 113 so that the third blocking plate 113 remains in the position of closing the third vent 700 when it is not subjected to airflow impact.

[0067] It should be noted that in some other embodiments, the third one-way gas passage structure may also be a duckbill valve or other types of normally closed one-way valve.

[0068] Reference Figures 1 to 7 In some embodiments, the filter structure includes a filter screen 800 that bends and extends along the length of the receiving cavity within the filter chamber 110. This increases the area of ​​the filter screen 800 used for filtering flue gas within the limited filter chamber 110. Under the condition of filtering the same amount of flue gas, compared with an unbent filter screen 800, it helps to reduce the risk of the filter structure being blocked, thereby extending the service life of the filter structure. At the same time, it can also improve the filtering effect of the filter structure on flue gas.

[0069] Specifically, the filter 800 uses a HEPA filter.

[0070] Reference Figures 1 to 7According to an embodiment of this application, the electronic atomizing device includes the above-mentioned smoke filtration device. The electronic atomizing device also includes an atomizing channel 170, a liquid storage chamber 180, and an atomizing core 900 disposed inside the housing 100. The housing 100 is provided with a suction port 190 communicating with the air outlet end of the atomizing channel 170. The air inlet end of the atomizing channel 170 is connected to the external atmosphere. The atomizing core 900 is connected to the liquid storage chamber 180. The atomizing core 900 is used to heat the atomizing liquid supplied to the atomizing liquid storage chamber 180 to form an aerosol that flows to the atomizing channel 170.

[0071] On the one hand, since the electronic atomizing device of the embodiments of this application includes the above-mentioned smoke filtration device, the electronic atomizing device of the embodiments of this application has all the technical effects of the above-mentioned smoke filtration device; on the other hand, the electronic atomizing device of the embodiments of this application integrates the inhalation function and the smoke filtration function, so that users only need to carry one product to realize the inhalation function and the smoke filtration function, thereby improving the user experience.

[0072] In the description of this specification, the use of terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," and "some examples" indicates that the specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0073] Although embodiments of this application have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of this application, the scope of which is defined by the claims and their equivalents.

Claims

1. A flue gas filtration device, characterized in that, include: The housing has an internal filter chamber, and the housing has an air outlet and an exhaust port communicating with the filter chamber. An adjustment structure is at least partially disposed inside the housing, the adjustment structure cooperates with the housing to form a first chamber, the air outlet opens into the first chamber, and the adjustment structure is configured to adjust the volume of the first chamber to change the air pressure inside the first chamber; A first one-way air passage structure is disposed at the air outlet or between the air outlet and the first chamber. The first one-way air passage structure is used to deliver the flue gas expelled from the air outlet into the first chamber. A second one-way gas passage structure is disposed between the first chamber and the filter chamber, and the second one-way gas passage structure is used to deliver flue gas into the filter chamber. as well as A filter structure is disposed within the filter chamber and located between the second one-way air passage structure and the exhaust port.

2. The flue gas filtration device as described in claim 1, characterized in that, The adjustment structure and the housing also cooperate to form a second chamber, which is connected to the filter chamber. The adjustment structure is configured to adjust the volume of the second chamber to change the air pressure inside the second chamber, so that the air pressure on the side of the filter structure near the exhaust port is less than the air pressure on the side of the filter structure near the second one-way air passage structure.

3. The flue gas filtration device as described in claim 2, characterized in that, The second chamber is connected to the area of ​​the filter chamber located between the filter structure and the second one-way air passage structure. A third one-way air passage structure is provided between the second chamber and the filter chamber. The third one-way air passage structure is used to deliver airflow to the area of ​​the filter chamber located between the filter structure and the second one-way air passage structure.

4. The flue gas filtration device as described in claim 2, characterized in that, The housing has an internal air passage, one end of which is connected to the exhaust port, and the other end of which is connected to the second chamber.

5. The flue gas filtration device as described in claim 4, characterized in that, The end of the connecting air passage away from the second chamber is inclined and faces the air inlet end of the exhaust port; or, The interior of the housing is provided with a flow guiding structure at the end of the connecting air passage away from the second chamber. The flow guiding structure is used to guide the airflow discharged from the connecting air passage to the air inlet of the exhaust port.

6. The flue gas filtration device as described in claim 4, characterized in that, The inner wall of the filter chamber is provided with a collection groove for collecting gas at the exhaust port, and the collection groove is connected to the exhaust port.

7. The flue gas filtration device according to any one of claims 2 to 6, characterized in that, The adjustment structure includes a piston and a drive structure. The housing has a receiving cavity corresponding to the piston. The first one-way air passage structure is located at one end of the receiving cavity. The piston is movably located inside the receiving cavity. The piston divides the receiving cavity into a first chamber and a second chamber. The drive structure is used to drive the piston to move along the length of the receiving cavity so that the volume changes of the first chamber and the second chamber are negatively correlated.

8. The flue gas filtration device as described in claim 7, characterized in that, The drive structure includes an operating part, a transmission part, and a connecting part. The operating part is movably disposed on the outside of the housing and can move along the length of the receiving cavity. The transmission part is movably disposed inside the housing and extends along the length of the receiving cavity. A clearance hole is provided at the end of the receiving cavity away from the first one-way air passage structure. A sealing element is provided at the clearance hole. The transmission part passes through the sealing element. One end of the transmission part extends into the second chamber and is connected to the piston. One end of the connecting part is connected to the other end of the transmission part. The other end of the connecting part is connected to the operating part. A clearance groove penetrating the side wall of the housing is provided on the side of the housing corresponding to the connecting part.

9. The flue gas filtration device as described in claim 8, characterized in that, The piston has a first extreme position close to the first one-way venting structure and away from the seal, and a second extreme position away from the first one-way venting structure and close to the seal. The interior of the housing is provided with an elastic reset member corresponding to the connecting part or the piston. The elastic reset member is used to drive the piston to move to the first extreme position.

10. The flue gas filtration device as described in claim 9, characterized in that, The elastic reset member is a compression spring. The end of the connecting part near the operating part is provided with a first abutting part. The interior of the housing is provided with a mounting groove that is independent of the receiving cavity and extends along the length direction of the receiving cavity. The first abutting part is slidably disposed in the mounting groove. The end of the mounting groove away from the first one-way air passage structure is provided with a second abutting part. The compression spring is disposed in the mounting groove. One end of the compression spring abuts against the first abutting part, and the other end of the compression spring abuts against the second abutting part.

11. The flue gas filtration device as described in claim 1, characterized in that, The first one-way air passage structure includes a sealing part and a first blocking plate. The first chamber has an opening at one end near the air outlet. The sealing part is disposed between the air outlet and the opening. A first vent is provided on the sealing part. The first blocking plate is rotatably disposed on the side of the first vent away from the air outlet. The first blocking plate is configured to open or close the first vent under the impact of airflow.

12. The flue gas filtration device as described in claim 1, characterized in that, The second one-way air passage structure includes a second baffle plate and a second vent disposed between the first chamber and the filter chamber. The second baffle plate is rotatably disposed on the side of the second vent away from the first chamber. The second baffle plate is configured to open or close the second vent under the impact of airflow.

13. The flue gas filtration device as described in claim 3, characterized in that, The third one-way air passage structure includes a third baffle plate and a third air vent disposed between the second chamber and the filter chamber. The third baffle plate is rotatably disposed on the side of the third air vent away from the second chamber. The third baffle plate is configured to open or close the third air vent under the impact of airflow.

14. The flue gas filtration device as described in claim 7, characterized in that, The filter structure includes a filter screen that extends and bends along the length of the receiving cavity within the filter chamber.

15. An electronic atomizing device, characterized in that, The electronic atomizing device, including the flue gas filtration device as described in any one of claims 1 to 14, further includes an atomizing channel, a liquid storage chamber, and an atomizing core disposed inside the housing. The housing is provided with a suction port communicating with the air outlet end of the atomizing channel. The atomizing core is communicating with the liquid storage chamber. The atomizing core is used to heat and atomize the atomizing liquid supplied by the liquid storage chamber to form an aerosol leading to the atomizing channel.

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