Tea extract filter layer for a cigarette filter and a cigarette filter

Abstract

This utility model relates to a tea extract filter layer for a cigarette filter and the cigarette filter itself. The tea extract filter layer includes a front baffle, a tea polyphenol extraction layer, and a rear baffle connected coaxially in sequence. The tea polyphenol extraction layer contains multiple microchannels. The front and rear baffles sandwich the tea polyphenol extraction layer, pressing it into a single structure, effectively protecting the end structure of the tea polyphenol extraction layer and preventing it from being inhaled by the user if damaged. The front and rear baffles improve the sealing effect between the tea extract filter layer and the inner wall of the filter housing, preventing smoke from flowing directly through the gap between the tea polyphenol extraction layer and the inner wall of the filter housing. Multiple microchannels are arranged along the smoke flow direction within the tea polyphenol extraction layer, and multiple through holes are opened axially on the front and rear baffles. The smoke generated by cigarette combustion flows sequentially through the front baffle, the tea polyphenol extraction layer, and the rear baffle. The microporous structure of the tea polyphenol extraction layer can effectively adsorb particles such as tar and nicotine, reducing the amount inhaled.

Description

Technical Field

[0001] This utility model relates to the field of cigarette filtration technology, and in particular to a tea extract filter layer for a cigarette filter and a cigarette filter. Background Technology

[0002] Cigarette combustion produces over 7,000 chemical substances, with tar, nicotine, and carbon monoxide being the primary sources of harm. Long-term smoking damages the respiratory system; tar adheres to the lungs, damaging alveoli and cilia, leading to chronic bronchitis, emphysema, and significantly increasing the risk of lung cancer. Nicotine stimulates vasoconstriction, and carbon monoxide reduces the blood's oxygen-carrying capacity, leading to arteriosclerosis and thrombosis over the long term, increasing the risk of myocardial infarction and stroke by 2 to 4 times. Existing cigarette filters have simple filter layer structures and very weak adsorption capacity for harmful substances such as tar and nicotine. Therefore, there is an urgent need for a filter layer that can effectively adsorb tar, nicotine, and other particles, reducing the amount of harmful substances inhaled. Utility Model Content

[0003] (a) Technical problems to be solved In view of the above-mentioned shortcomings and deficiencies of the prior art, the present invention provides a tea extract filter layer for a smoke filter and a smoke filter.

[0004] (II) Technical Solution To achieve the above objectives, the tea extract filter layer of the smoke filter of this utility model includes the front baffle, the tea polyphenol extraction layer, and the rear baffle connected coaxially in sequence. The tea polyphenol extraction layer has multiple microchannels arranged along the direction of flue gas flow, and the front baffle and the rear baffle have multiple through holes opened along the axial direction.

[0005] Optionally, the tea polyphenol extraction layer has a multi-layer structure, including multiple tea polyphenol sheets stacked sequentially. Each tea polyphenol sheet has multiple micropores, and the micropores between adjacent tea polyphenol sheets are connected in a one-to-one correspondence.

[0006] Optionally, the tea polyphenol extraction layer has a columnar structure and multiple microchannels are formed inside along the direction of flue gas flow.

[0007] Optionally, both the front baffle and the rear baffle include a first baffle and a second baffle that are connected to each other. Both the first baffle and the second baffle are honeycomb-shaped, and the through holes on the first baffle and the through holes on the second baffle are misaligned.

[0008] Furthermore, this utility model also provides a smoke filter, which includes a transparent shell and a first filter element, a second filter element and a tea extract filter layer disposed in the transparent shell, wherein the tea extract filter layer, the second filter element and the first filter element are arranged sequentially along the flow direction of the smoke; The first end of the transparent outer shell is provided with a connecting part, which can be fitted with a thick cigarette, and a first gap is provided between the thick cigarette and the inner wall of the connecting part.

[0009] Optionally, the first filter element is located near the first end of the transparent housing; The first filter element is a hollow tubular structure with an opening at the first end. Multiple radially arranged first strip holes are provided on the end face of the second end of the first filter element, and multiple through holes are provided at the center of the end face of the second end. The first filter element has a plurality of second strip-shaped holes arranged along the axial direction on its side wall, and the first strip-shaped holes are connected to the second strip-shaped holes.

[0010] Optionally, the smoke filter further includes an adapter sleeve; The adapter sleeve includes a first sleeve and a second sleeve connected to each other. The inner diameter of the second sleeve is larger than the inner diameter of the first sleeve. The first sleeve can be fitted with a slim cigarette, and the second sleeve can be fitted with a medium-sized cigarette. The first sleeve is fitted onto the first end of the first filter element, and the second sleeve is fitted onto the transparent outer shell. A second gap is provided between the outer wall of the second sleeve and the inner wall of the transparent outer shell.

[0011] Optionally, the second filter element is sandwiched between the tea extract filter layer and the first filter element, and the second filter element includes a plurality of filter beads, the filter beads including silicon crystals and / or carbon beads.

[0012] Optionally, the smoke filter further includes a transparent mouthpiece, which is connected to the second end of the transparent housing via a tapered transparent transition tube, and the outer wall of the transparent housing is provided with at least one plane parallel to the central axis of the transparent housing.

[0013] Optionally, the cigarette filter further includes a sponge filter element disposed in the transparent cigarette holder or the conical transparent transition tube, and a color card is affixed to the transparent cigarette holder and / or the conical transparent transition tube.

[0014] (III) Beneficial Effects The front and rear baffles sandwich the tea polyphenol extraction layer, and the three are pressed together into a single structure, effectively protecting the end structure of the tea polyphenol extraction layer and preventing it from being inhaled by the user if damaged. The front and rear baffles improve the sealing effect between the tea extract filtration layer and the inner wall of the filter housing, preventing smoke from flowing directly through the gap between the tea polyphenol extraction layer and the inner wall of the filter housing, thereby improving the filtration effect.

[0015] Multiple microchannels are arranged along the direction of smoke flow in the tea polyphenol extraction layer. The microchannels are formed by the gaps between powder particles. Multiple through holes are opened along the axial direction on the front baffle and the rear baffle for the flow of smoke. The smoke generated by the burning of cigarettes flows through the front baffle, the tea polyphenol extraction layer and the rear baffle in sequence. The microporous structure of the tea polyphenol extraction layer can effectively adsorb tar, nicotine and other particles, reducing the amount inhaled. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of the tea extract filter layer of this utility model; Figure 2 This is a side view of the tea extract filter layer of this utility model; Figure 3 This is a schematic diagram of the structure of the front baffle of the tea extract filter layer of this utility model; Figure 4 This is a schematic diagram of the structure of the smoke filter of this utility model; Figure 5 This is a schematic diagram of the installation of the adapter sleeve for the smoke filter of this utility model; Figure 6 This is an exploded view of the smoke filter of this utility model; Figure 7 This is a schematic diagram of the structure of the first filter element of the smoke filter of this utility model.

[0017] [Explanation of Labels in the Attached Image] 1: Front baffle; 11: First baffle; 12: Second baffle; 2: Rear baffle; 3: Tea polyphenol extraction layer; 31: Tea polyphenol tablet; 5: Transparent outer shell; 51: Connecting part; 52: Transparent mouthpiece; 53: Conical transparent transition tube; 54: Flat surface; 6: First filter element; 61: First strip hole; 62: Second strip hole; 7: Second filter element; 8: Adapter sleeve; 81: First sleeve; 82: Second sleeve; 83: Second gap; 9: Sponge filter element; 90: Color card. Detailed Implementation

[0018] To better explain and facilitate understanding of this utility model, a detailed description of its specific embodiments is provided below with reference to the accompanying drawings. In this document, directional terms such as "upper," "lower," etc., are used interchangeably with other directional terms. Figure 1 The orientation is used as a reference.

[0019] While exemplary embodiments of the present invention are shown in the accompanying drawings, it should be understood that the present invention may be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that the present invention can be understood more clearly and thoroughly, and that the scope of the present invention can be fully conveyed to those skilled in the art.

[0020] This invention provides a tea extract filter layer for a smoke filter, which improves the filtration effect of the smoke filter on harmful substances in smoke, thereby reducing the amount of harmful substances inhaled.

[0021] like Figure 1 As shown, the tea extract filter layer of the cigarette filter includes a front baffle 1, a rear baffle 2, and a tea polyphenol extraction layer 3. The front baffle 1, tea polyphenol extraction layer 3, and rear baffle 2 are coaxially connected in a columnar structure. The tea polyphenol extraction layer 3 is a filter layer structure made of pressed tea polyphenol particles. The front baffle 1 and rear baffle 2 sandwich the tea polyphenol extraction layer 3, and the three are pressed into a single structure, effectively protecting the end structure of the tea polyphenol extraction layer 3 and preventing it from being inhaled by the user if damaged. The front baffle 1 and rear baffle 2 improve the sealing effect between the tea extract filter layer and the inner wall of the filter housing, preventing smoke from flowing directly through the gap between the tea polyphenol extraction layer 3 and the inner wall of the filter housing, thereby improving the filtration effect.

[0022] Multiple microchannels are arranged along the direction of smoke flow within the tea polyphenol extraction layer 3. These microchannels are formed by the gaps between powder particles. Multiple through-holes are axially formed on the front baffle 1 and rear baffle 2 to facilitate smoke circulation. The smoke generated by cigarette combustion flows sequentially through the front baffle 1, the tea polyphenol extraction layer 3, and the rear baffle 2. The microporous structure of the tea polyphenol extraction layer 3 effectively adsorbs particles such as tar and nicotine, reducing the amount inhaled. Simultaneously, tea polyphenols are compounds containing phenolic hydroxyl groups, which can chemically react with harmful substances such as free radicals in the smoke, converting them into inert compounds. This further improves the smoke filtration effect and reduces oxidative stress damage to the lungs.

[0023] like Figure 2 As shown, in one embodiment, the tea polyphenol extraction layer 3 adopts a multi-layer structure, comprising multiple sequentially stacked and coaxially arranged tea polyphenol sheets 31. Each tea polyphenol sheet 31 is a sheet-like structure formed by pressing tea polyphenol granules. Adjacent tea polyphenol sheets 31 abut against each other, and each sheet 31 has multiple micropores formed by the gaps between particles, facilitating the flow of flue gas and increasing the contact area between the flue gas and the tea polyphenols. By changing the number of tea polyphenol sheets 31, the filtration performance of the tea polyphenol extraction layer 3 can be altered to meet the needs of different users, thus improving product flexibility.

[0024] In another embodiment, the tea polyphenol extraction layer 3 has a columnar structure and multiple microchannels are opened inside along the flue gas flow direction, which makes it easy to install, structurally stable, and has a good adsorption effect.

[0025] Preferably, such as Figure 2 and Figure 3 As shown, both the front baffle 1 and the rear baffle 2 include a first baffle 11 and a second baffle 12 bonded together. Both the first baffle 11 and the second baffle 12 are honeycomb-shaped and have multiple hexagonal holes arranged in an array. In other embodiments, the hexagonal holes can be arranged as circular holes. The through holes on the first baffle 11 and the second baffle 12 are staggered to form a flue gas channel with a specific cross-sectional area. When the first baffle 11 and the second baffle 12 are bonded together, the cross-sectional area of ​​the flue gas channel can be controlled by adjusting the rotation angle of the first baffle 11 or the second baffle 12, thereby controlling the flue gas flow rate. This reduces the processing precision and difficulty of the flue gas channel on the front baffle 1 and the rear baffle 2, improves production efficiency, and thus reduces the operating cost.

[0026] like Figures 4 to 6 As shown, a smoke filter includes a transparent outer shell 5 and a first filter element 6, a second filter element 7, and a tea extract filter layer disposed within the transparent outer shell 5. The tea extract filter layer, the second filter element 7, and the first filter element 6 are arranged sequentially along the direction of smoke flow. The multiple filter element structures increase the smoke filtration effect, thereby reducing the amount of harmful substances inhaled. The transparent outer shell 5 is a transparent shell-shaped structure with openings at both ends. The first end of the transparent outer shell 5 is provided with a connecting part 51, which is used to connect with a thick cigarette. The cross-section of the connecting part 51 is a polygon or a shape formed by connecting arcs and straight lines. After the cigarette tube is connected to the connecting part 51, a first gap is left between the cigarette tube and the inner wall of the connecting part 51. The smoke generated by the combustion of the thick cigarette enters the first filter element 6 after passing through the cigarette tube. At the same time, some air directly enters the first filter element 6 through the first gap between the cigarette tube and the inner wall of the connecting part 51, reducing the amount of smoke inhaled and thus reducing the harm of smoke to the user.

[0027] like Figure 7As shown, the first filter element 6 is located near the first end of the transparent outer shell 5. The first filter element 6 is a hollow tubular structure with an open end facing the first end of the transparent outer shell 5. The second end of the first filter element 6 is a closed structure. Multiple radially arranged first strip-shaped holes 61 are formed on the end face of the second end, radiating outwards from the center of the end face. Multiple circular through holes are also formed at the center of the end face of the second end. Both the first strip-shaped holes 61 and the through holes serve as channels for flue gas flow. Multiple axially arranged second strip-shaped holes 62 are formed on the sidewall of the first filter element 6, and the first strip-shaped holes 61 and second strip-shaped holes 62 communicate with each other. Flue gas enters the first filter element 6 through the first end opening and flows out of the first filter element 6 through the first strip-shaped holes 61, second strip-shaped holes 62, and through holes. The flue gas diffuses evenly through the first strip-shaped holes 61, second strip-shaped holes 62, and through holes, improving the uniformity of the flue gas entering the second filter element 7 and thus improving the filtration effect of the second filter element 7.

[0028] like Figures 4 to 6 As shown, the cigarette filter also includes an adapter sleeve 8. The adapter sleeve 8 comprises a first sleeve 81 and a second sleeve 82 connected to each other, and the first sleeve 81 and the second sleeve 82 are coaxially arranged. The inner diameter of the second sleeve 82 is larger than the inner diameter of the first sleeve 81. The first sleeve 81 is used to fit with slim cigarettes, and the second sleeve 82 is used to fit with medium-sized cigarettes. The adapter sleeve 8 can accommodate various sizes of cigarette tubes, improving the product's flexibility and practicality. The first sleeve 81 fits onto the first end of the first filter element 6, and the second sleeve 82 fits onto the transparent outer shell 5. The friction between the outer wall of the second sleeve and the inner wall of the transparent outer shell 5 maintains the stable installation of the adapter sleeve 8. A second gap 83 is provided between the outer wall of the second sleeve 82 and the inner wall of the transparent shell 5. When matched with a medium or thin cigarette pipe, the smoke generated by combustion enters the first filter element 6 through the cigarette pipe and the adapter sleeve 8. At the same time, some air directly enters the first filter element 6 through the second gap 83 between the outer wall of the second sleeve 82 and the inner wall of the transparent shell 5, reducing the amount of smoke inhaled and thus reducing the harm of smoke to the user.

[0029] like Figure 4 and Figure 6 As shown, the second filter element 7 is sandwiched between the tea extract filter layer and the first filter element 6. The second filter element 7 includes multiple filter beads, which increases the contact area between the smoke and the second filter element 7, thereby improving the filtration effect. The filter beads include, but are not limited to, silicon crystals and / or carbon beads, further enhancing the filtration performance.

[0030] like Figure 4 and Figure 6 As shown, the smoke filter also includes a transparent mouthpiece 52, which is connected to the second end of the transparent housing 5 via a tapered transparent transition tube 53. At least one plane 54 parallel to the central axis of the transparent housing 5 is provided on the outer wall of the transparent housing 5 to prevent the transparent housing 5 from rolling, thereby reducing the chance of the smoke filter rolling off.

[0031] Furthermore, the smoke filter also includes a sponge filter element 9, which is disposed in the transparent mouthpiece 52 or the conical transparent transition tube 53. A color card 90 is attached to the outer wall of the transparent mouthpiece 52 or the conical transparent transition tube 53. The sponge further adsorbs harmful substances in the smoke. The sponge is white or light-colored. Users can observe the color depth of the sponge through the transparent mouthpiece 52 or the conical transparent transition tube 53 and judge the service life of the smoke filter by comparing the colors on the color card 90. If the colors are the same or similar, it means that the smoke filter has reached the end of its service life and must be replaced.

[0032] In the description of this utility model, it should be understood that the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0033] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.

[0034] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "beneath" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0035] In the description of this specification, the terms "one embodiment," "some embodiments," "embodiment," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of the present invention. 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. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0036] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make modifications, alterations, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A tea extract filter layer in a cigarette filter, characterized in that, The tea extract filter layer of the smoke filter includes a front baffle (1), a rear baffle (2) and a tea polyphenol extraction layer (3), wherein the front baffle (1), the tea polyphenol extraction layer (3) and the rear baffle (2) are coaxially connected in sequence. The tea polyphenol extraction layer (3) has multiple microchannels arranged along the direction of flue gas flow, and the front baffle (1) and the rear baffle (2) have multiple through holes arranged along the axial direction.

2. The tea extract filter layer of the smoke filter as described in claim 1, characterized in that, The tea polyphenol extraction layer (3) has a multi-layer structure, including multiple tea polyphenol sheets (31) stacked sequentially. Each tea polyphenol sheet (31) is provided with multiple micropores, and the micropores between adjacent tea polyphenol sheets (31) are connected in a one-to-one correspondence.

3. The tea extract filter layer of the smoke filter as described in claim 1, characterized in that, The tea polyphenol extraction layer (3) has a columnar structure and multiple microchannels are opened inside along the direction of flue gas flow.

4. The tea extract filter layer of the smoke filter as described in claim 1, characterized in that, The front baffle (1) and the rear baffle (2) each include a first baffle (11) and a second baffle (12) connected to each other. The first baffle (11) and the second baffle (12) are both honeycomb shaped, and the through holes on the first baffle (11) and the through holes on the second baffle (12) are misaligned.

5. A smoke filter, characterized in that, The smoke filter includes a transparent shell (5) and a first filter element (6), a second filter element (7) disposed in the transparent shell (5) and a tea extract filter layer as described in any one of claims 1-4, wherein the tea extract filter layer, the second filter element (7) and the first filter element (6) are arranged sequentially along the flow direction of the smoke. The first end of the transparent outer shell (5) is provided with a connecting part (51), which can be connected to a thick cigarette, and a first gap is provided between the thick cigarette and the inner wall of the connecting part (51).

6. The smoke filter as described in claim 5, characterized in that, The first filter element (6) is located near the first end of the transparent outer shell (5); The first filter element (6) is a hollow tubular structure with an opening at the first end. Multiple first strip holes (61) arranged radially are provided on the end face of the second end of the first filter element (6). Multiple through holes are provided at the center of the end face of the second end. The first filter element (6) has a plurality of second strip holes (62) arranged along the axial direction on its side wall, and the first strip hole (61) communicates with the second strip hole (62).

7. The smoke filter as described in claim 6, characterized in that, The smoke filter also includes an adapter sleeve (8); The adapter sleeve (8) includes a first sleeve (81) and a second sleeve (82) connected to each other. The inner diameter of the second sleeve (82) is larger than the inner diameter of the first sleeve (81). The first sleeve (81) can be fitted with a slim cigarette, and the second sleeve (82) can be fitted with a medium-sized cigarette. The first sleeve (81) is sleeved to the first end of the first filter element (6), the second sleeve (82) is sleeved to the transparent shell (5), and a second gap (83) is provided between the outer wall of the second sleeve (82) and the inner wall of the transparent shell (5).

8. The smoke filter as described in claim 5, characterized in that, The second filter element (7) is sandwiched between the tea extract filter layer and the first filter element (6). The second filter element (7) includes a plurality of filter beads, which include silicon crystals and / or carbon beads.

9. The smoke filter as described in claim 5, characterized in that, The smoke filter also includes a transparent mouthpiece (52), which is connected to the second end of the transparent shell (5) through a tapered transparent transition tube (53). At least one plane (54) parallel to the central axis of the transparent shell (5) is provided on the outer wall of the transparent shell (5).

10. The smoke filter as described in claim 9, characterized in that, The cigarette filter also includes a sponge filter element (9), which is disposed in the transparent cigarette holder (52) or the conical transparent transition tube (53), and a colored card (90) is attached to the transparent cigarette holder (52) and / or the conical transparent transition tube (53).

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