Poison filtering core, auxiliary device and cigarette

Abstract

The utility model provides a poison filter core, auxiliary device and cigarette, poison filter core includes main part, main part upper side and lower side end of main part are both equipped with the bulge, in the main part is equipped with two groove body that upper and lower pass through the partition board to separate, groove body side wall is equipped with a plurality of through-hole. The poison filtering core is assembled in a transparent shell and is combined with a pipe sleeve filled with a filtering medium to form an auxiliary device capable of carrying out bidirectional multiple poison filtering, and the filtering medium can be a blasting bead assembly or other medium assemblies containing plant media and / or activated carbon and the like. The auxiliary device is combined with a tobacco shred section to form a cigarette, multiple filtration of smoke can be achieved in the combustion process of the cigarette, the smoke exhausted by the auxiliary device can carry fragrance contained in media, and the taste of the smoke is improved. A filter tip in an existing cigarette can be eliminated, a consumer can observe the obvious poison filtering effect in real time during smoking, inhalation of toxic substances is greatly reduced, and the cigarette has the warning property that smoking is harmful to health, taste diversity and certain ornamental value.

Description

Technical Field

[0001] The utility model relates to the field of cigarettes, in particular to a toxin filter element, an auxiliary device and a cigarette. Background Art

[0002] At present, the filter devices used in cigarettes have bidirectional filtering, such as the filter core disclosed in the patent with publication number CN221082702U and patent name "Bidirectional Filter Core", which has been patented by the applicant, adopts bidirectional filtering, and both sides of the filter core can be used as the air inlet side and the air outlet side. However, when the filter core is assembled into a shell to form a filter for use, the path of smoke transmission on the filter is not concentrated, which leads to the filtering and visual effects of the filter being not as comprehensive as the technical effects achieved by the present invention. Utility Model Content

[0003] The purpose of the present utility model is to provide a toxin filter element, an auxiliary device and a cigarette to solve one or more of the above-mentioned problems in the prior art.

[0004] The utility model proposes a gas filter element, comprising a main body, wherein the upper and lower end portions of the main body are each provided with a protrusion, and an upper and lower trough body are provided in the main body, and the two trough bodies are separated by a partition, and a plurality of through holes are provided on the side wall of each of the trough bodies. The design of this structure can realize bidirectional flow of smoke, and at the same time, bidirectional multiple filtration can be realized when it is combined with the corresponding shell, and the number, size and position of the through holes can be set and adjusted as needed.

[0005] In some embodiments,

[0006] The filter element is assembled within a housing, and a cavity is provided on the inside of the housing corresponding to the filter element. The raised outer wall is sealedly connected to the cavity wall of the cavity, thereby forming a flue gas flow cavity between the outer wall of the filter element and the cavity wall. The through holes on the two trough bodies are both connected to the flue gas flow cavity. When the flue gas passes through the through holes, it is physically filtered using the principle of microporous jet. In addition, harmful substances contained in the flue gas can also be attached and retained on the inner wall of the housing, the groove wall of the trough body, the cavity wall of the flow cavity, etc.

[0007] In some embodiments, the two protrusions are both annular and coaxially arranged;

[0008] The two trough bodies are both cylindrical and coaxially arranged, and the opening directions of the two trough bodies are opposite;

[0009] The plurality of through holes are evenly distributed in an annular direction on the corresponding slot body.

[0010] In some embodiments, the shell is made of a transparent or translucent material so that the working effect of the filter element inside the shell can be observed through the shell to serve as a warning.

[0011] In some embodiments, the pore size of the through hole is less than or equal to 0.6 mm to ensure the effect of microporous filtration.

[0012] An auxiliary device comprises a shell and a filter core as described in any one of the above items, a cavity is provided on the inner side of the shell corresponding to the filter core, the filter core is assembled in the cavity, the outer side wall of the protrusion is connected and sealed to the cavity wall of the cavity to form a flue gas flow cavity between the outer side wall of the filter core and the cavity wall of the cavity, the through holes on the two trough bodies are connected to the flue gas flow cavity, so that two-way filtering can be achieved, reducing the restriction of the flue gas flow direction when the auxiliary device is filtering.

[0013] In some embodiments, a pipe sleeve is provided on each side of the shell, and an auxiliary through hole is provided on each pipe sleeve. The cavity passes through the shell and is connected to the auxiliary through hole. The auxiliary through hole is divided into two sections, namely an inner section and an outer section. The inner diameter of the outer section is smaller than the inner diameter of the inner section. The filter medium is filled in the inner section. The filter medium is one or more of filter cotton, explosive bead components, and other media components.

[0014] The bursting bead assembly includes a bursting bead mounting seat and a bursting bead, wherein the bursting bead is embedded in the bursting bead mounting seat, and the bursting bead mounting seat is a filter cotton;

[0015] The other medium components all include a barrier air-permeable layer and a medium, and the medium is a plant medium and / or activated carbon.

[0016] In some embodiments,

[0017] The shell and the sleeve are coaxially arranged, the outer diameters of the two side ends of the shell correspond to the inner diameters of the inner sections of the auxiliary through holes, the ends of the shell are inserted into the inner sections of the corresponding auxiliary through holes to form a receiving cavity between the filter element and the outer sections of the auxiliary through holes, and the filter medium is filled in the receiving cavity;

[0018] The filter medium includes other media components, and the other media components include 2*n-1 layers of barrier and breathable layers and n layers of media, where n is an integer greater than or equal to 1. The barrier and breathable layers are arranged corresponding to the accommodating cavity, and the four sides of the barrier and breathable layers are in contact with the cavity wall of the accommodating cavity to form a medium cavity between two adjacent barrier and breathable layers. The medium is placed in the medium cavity. Such a setting can effectively prevent the plant medium and the activated carbon medium from destroying the beads, clogging the through holes of the filter core, etc., and can not only ensure the integrity of the auxiliary device before use, but also ensure the normal performance of the filtering operation during use.

[0019] A cigarette comprises a tobacco segment and an auxiliary device, wherein the auxiliary device comprises a shell and a filter core as described above, a cavity is provided on the inner side of the shell corresponding to the filter core, the filter core is assembled in the cavity, the outer side wall of the protrusion is connected and sealed to the cavity wall of the cavity to form a smoke flow cavity between the outer side wall of the filter core and the cavity wall of the cavity, the through holes on the two trough bodies are connected to the smoke flow cavity, so that two-way filtering can be achieved, reducing the restriction of the smoke flow direction when the auxiliary device is filtering, and facilitating the production of cigarettes.

[0020] In some embodiments, a pipe sleeve is provided on each side of the shell, and an auxiliary through hole is provided on each pipe sleeve. The cavity passes through the shell and is connected to the auxiliary through hole. The auxiliary through hole is divided into two sections, namely an inner section and an outer section. The inner diameter of the outer section is smaller than the inner diameter of the inner section. The filter medium is filled in the inner section. The filter medium is one or more of filter cotton, a bead assembly, and other media components. When the smoke passes through the filter medium, it can not only adhere to the surface of the medium to achieve a filtering effect, but also carry the fragrance of the filter medium to improve the taste of the smoke when inhaled;

[0021] The bursting bead assembly includes a bursting bead mounting seat and a bursting bead, wherein the bursting bead is embedded in the bursting bead mounting seat, and the bursting bead mounting seat is a filter cotton;

[0022] The other medium components all include a barrier air-permeable layer and a medium, and the medium is a plant medium and / or activated carbon.

[0023] In some embodiments, the housing and the sleeve are coaxially arranged, the outer diameters of the two side ends of the housing correspond to the inner diameters of the inner sections of the auxiliary through holes, the ends of the housing are inserted into the corresponding inner sections of the auxiliary through holes to form a receiving cavity between the filter element and the outer sections of the auxiliary through holes, and the filter medium is filled in the receiving cavity;

[0024] The filter medium includes other media components, and the other media components include 2*n-1 layers of barrier and breathable layers and n layers of media, where n is an integer greater than or equal to 1. The barrier and breathable layers are arranged corresponding to the accommodating cavity, and the four sides of the barrier and breathable layers are in contact with the cavity wall of the accommodating cavity to form a medium cavity between two adjacent barrier and breathable layers. The medium is placed in the medium cavity. Such a setting can effectively prevent the plant medium and the activated carbon medium from destroying the beads, clogging the through holes of the filter core, etc., and can not only ensure the integrity of the auxiliary device before use, but also ensure the normal performance of the filtering operation during use.

[0025] The advantages of the filter element, auxiliary device and cigarette described in the utility model are:

[0026] The rational structure enables bidirectional and multi-faceted filtration. Both sides of the filter element and auxiliary device can serve as the air inlet and outlet, making it more adaptable to existing cigarette production equipment and processes. Furthermore, the auxiliary device effectively filters smoke, reducing the harm caused by smoke inhalation, while also imparting the aroma contained in the filter medium to the exhausted smoke, enhancing the taste. This invention can eliminate existing cigarette filter mouthpieces with poor filtration performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 A top view of a poison filter element in some embodiments of the present invention;

[0028] Figure 2 for Figure 1 Schematic diagram of the AA section structure;

[0029] Figure 3 A side view of a poison filter element in some embodiments of the present invention;

[0030] Figure 4 A top view of the auxiliary device in some embodiments of the present invention;

[0031] Figure 5 For the Figure 4 BB is a schematic structural diagram of the auxiliary device in Example 1;

[0032] Figure 6 For the Figure 4 The cross-section BB in the middle is a schematic structural diagram of the auxiliary device in Example 2;

[0033] Figure 7 For the Figure 4 The cross-section BB in the middle is a schematic structural diagram of the auxiliary device in Example 3;

[0034] Figure 8 Schematic diagram of the structure of cigarettes in some embodiments of the present invention. DETAILED DESCRIPTION

[0035] Combine Figures 1 to 7As shown in the content, this embodiment proposes a drug filter element, which includes a main body 501. The main body 501 includes a column 511 and protrusions 512 arranged at the upper and lower ends of the main body 511. Two grooves are provided on the inner side of the column 511. The two grooves are a first groove 502 with an upward opening and a second groove 503 with a downward opening. The first groove 502 and the second groove 503 are separated by a partition 513. The side walls of the first groove 502 and the second groove 503 are both provided with a number of through holes 504. The drug filter element 5 can be assembled in the shell 102, and the outer wall of the protrusion 512 is connected to the wall of the cavity on the inner side of the shell 102 to form a smoke flow cavity between the outer wall of the drug filter element 5 and the wall of the cavity. The through holes on the two grooves are connected to the smoke flow cavity. Both sides of the drug filter element 5 described herein can be used as the air inlet side and the air outlet side (such as Figure 2 As shown, the opening of the trough body on one side serves as the air inlet side 1, and the opening of the trough body on the other side serves as the air outlet side 1; or the opening of the trough body on one side serves as the air outlet side 2, and the opening of the trough body on the other side serves as the air inlet side 2). The smoke enters through the opening of any of the two trough bodies, and is then transmitted to the smoke flow cavity through the through hole 504 on the trough body on that side, and then is transmitted to the trough body on the other side through the through hole 504 on the trough body on the other side, and then discharged. After the smoke passes through this transmission path, the harmful substances contained in the smoke can be attached and retained on the inner wall of the shell 102, the groove wall of the trough body, and the cavity wall of the smoke flow cavity through the condensation principle, the wall attachment effect, etc., and can also be microporously filtered using the principle of microporous jet when the smoke passes through the through hole to achieve multi-filtration without recognizing direction. The shell 102 here can be made of transparent or translucent material so that the working effect of the filter element in the shell can be observed through the shell to serve as a warning.

[0036] The column 511 , protrusion 512 and partition 513 may be integrally injection molded.

[0037] The aperture of the above-mentioned through hole 504 is generally less than or equal to 0.6 mm. The number, size, and position of the through holes 504 can be set as needed by comprehensively considering factors such as the length, diameter, airflow velocity, and taste of the cigarette. Because the types of cigarettes include flue-cured tobacco, cigar type, spice type, sun-cured tobacco type, external fragrance type, electronic cigarette type, etc., these types of cigarettes have different volumes, lengths, and thicknesses, so the number, size, and position of the through holes can be adjusted as needed.

[0038] In some specific implementations, both protrusions 512 are annular in shape, and the two protrusions 512 can be coaxially arranged.

[0039] In some specific implementations, the first tank body 502 and the second tank body 503 are both cylindrical, and the first tank body 502 and the second tank body 503 are coaxially arranged.

[0040] In some specific implementations, the plurality of through holes 504 are evenly distributed circumferentially on the corresponding slot body.

[0041] Combine Figures 4 to 8 As shown in the content, the application of the above-mentioned filter element 5 can form an auxiliary device 1, which includes a filter element 5 and a shell 102 for assembling the filter element 5. A cavity is set in the shell 102 corresponding to the filter element 5. The cavity passes through the shell 102. The filter element 5 is assembled in the middle position of the cavity. The outer wall of the protrusion 512 on the filter element 5 is connected to the cavity wall of the cavity to form a closed flue gas flow cavity between the column 511 and the cavity wall of the cavity. The through holes 504 on the two grooves on the filter element 5 are both connected to the flue gas flow cavity.

[0042] The auxiliary device 1 also includes two pipe sleeves 101, which are respectively arranged on both sides of the housing 102. Each pipe sleeve 101 is provided with an auxiliary through hole with a narrow outer side and a wide inner side and a convex cross-section. The cavity is connected to the auxiliary through hole. The auxiliary through hole is divided into two sections, namely the inner section and the outer section 111. The aperture of the outer section 111 is smaller than the aperture of the inner section. The inner section is filled with a filter medium, which is one or more of filter cotton (excluding other media, only a single filter cotton), a bead assembly, and other media components. In this auxiliary device 1, smoke enters the filter element 5 through the auxiliary through hole on one side of the pipe sleeve, and is then discharged through the auxiliary through hole on the other side of the pipe sleeve to achieve multi-directional filtering. The filtration process of the smoke on the filter element can be as follows: the smoke enters through the opening of any of the two trough bodies, is then transmitted to the smoke flow cavity through the through hole 504 on the trough body on that side, and is then transmitted to the trough body on the other side through the through hole 504 on the trough body on the other side, and is then discharged. After the smoke passes through this transmission path, the harmful substances contained in the smoke can be attached and retained on the inner wall of the shell 102, the groove wall of the trough body, and the cavity wall of the smoke flow cavity through the condensation principle, the wall adhesion effect, etc., and can also be microporously filtered using the principle of microporous jet when the smoke passes through the through hole. When the smoke is transmitted in the pipe sleeve, it will pass through the filter medium filled in the pipe sleeve, and can be attached and retained on the filter medium through the condensation principle, the wall adhesion effect, etc., and can also be microporously filtered through the gaps between the media on the filter medium. In addition, when the smoke passes through the filter medium, it can also carry the aroma contained in the filter medium to enhance the taste of the smoke.

[0043] The explosive bead assembly may include a explosive bead mounting seat 401 and a explosive bead 403. The explosive bead 403 may be directly embedded in the explosive bead mounting seat 401. Alternatively, an auxiliary groove 402 for embedding the explosive bead 403 may be provided on the explosive bead mounting seat 401. The opening of the auxiliary groove 402 is disposed toward the location of the filter element 5. The explosive bead 403 is then directly embedded in the corresponding auxiliary groove 402. The material of the explosive bead mounting seat 401 may be filter cotton.

[0044] Other media components may include a barrier and breathable layer and a medium 602, wherein the barrier and breathable layer may be made of filter cotton, and the medium 602 may be one or more of activated carbon, plant media, etc., wherein the plant media may be one or more of the flowers, stems, leaves, and fruits of non-toxic plants (such as: spider plants and leaves, pittosporum, aloe, canna, dieffenbachia, monstera, camellia, rose, green radish, ivy, drug-absorbing grass, osmanthus granules, cassia seed granules, etc.). The setting of the medium 602 can enhance the taste and the function of absorbing toxic substances such as nicotine and tar.

[0045] In some specific implementations, the shell 102 and the sleeve 101 are coaxially arranged, the outer diameters of the two side ends of the shell 102 correspond to the inner diameters of the inner sections of the auxiliary through holes, the ends of the shell 102 are inserted into the corresponding inner sections of the auxiliary through holes to form a socket structure, and then a accommodating cavity is formed between the filter element 5 and the outer section 111 of the auxiliary through hole, and the filter medium is filled in the accommodating cavity.

[0046] When the filter medium contains other media components, the other media components include 2*n-1 layers of barrier and breathable layers and n layers of media, where n is an integer greater than or equal to 1. The barrier and breathable layers are arranged corresponding to the accommodating cavity, and the four sides of the barrier and breathable layers are in contact with the cavity wall of the accommodating cavity to form a media cavity between two adjacent barrier and breathable layers. The media is placed in the media cavity. Such a setting can effectively prevent the plant medium and activated carbon medium from destroying the beads and clogging the through holes of the filter core, etc., which can not only ensure the integrity of the auxiliary device before use, but also ensure the normal filtering operation during use.

[0047] The shell 102 and the tube sleeve 101 in the auxiliary device 1 can be made of transparent or translucent materials, so that consumers can intuitively feel the role of the auxiliary device when smoking. The material of the tube sleeve 101 can be food-grade soft silicone, TPE, latex, etc., which meets the consumer's mouthpiece preference when smoking. These materials are not easy to be damaged during use, thereby effectively ensuring the hygiene of the auxiliary device and improving safety.

[0048] The above-mentioned barrier and breathable layer can also be replaced with other existing materials that have the function of filtering smoke, can be used to hold bursting beads, ensure the flow of smoke but can block the medium.

[0049] In some specific implementations, the sleeve 101 and the shell 102 are arranged correspondingly, for example, when the sleeve 101 and the shell 102 are both cylinders, the outer diameter of the sleeve 101 corresponds to the outer diameter of the shell 102, and when the sleeve 101 and the shell 102 are connected, a cylinder with a flat outer wall can be formed.

[0050] According to the structural composition of the above auxiliary device, three specific examples of auxiliary devices can be formed as shown below:

[0051] Example 1

[0052] Combine Figure 5 As shown in the content, in this specific embodiment, the filter media filled in the accommodating cavities on both sides of the filter core 5 are all bursting bead components, the bursting bead components on both sides are symmetrically distributed, and the outer diameter of the bursting bead mounting seat 401 is larger than the aperture of the outer section on the auxiliary through hole.

[0053] Example 2

[0054] Combine Figure 6 As shown in the content, the filter media filled in the accommodating cavities on both sides of the filter element 5 in this specific embodiment are all other media components. The other media components include two barrier breathable layers and one layer of medium 602. The two barrier breathable layers are respectively a first barrier breathable layer 604 and a second barrier breathable layer 605. The outer walls of the two barrier breathable layers are in contact with the cavity wall of the accommodating cavity to form a medium cavity between the two adjacent barrier breathable layers, and the medium 602 is placed in the medium cavity.

[0055] The media on both sides of the filter element 5 can be the same or different.

[0056] Example 3

[0057] Combine Figure 7 As shown in the content, the filter media filled in the accommodating cavities on both sides of the filter core 5 in this specific embodiment include bursting bead components and other media components, wherein the bursting bead components on both sides of the filter core 5 are symmetrically distributed, the outer diameter of the bursting bead mounting seat 401 is larger than the aperture of the outer section on the auxiliary through hole, and a cavity is reserved between the bursting bead mounting seat 401 and the filter core 5, and the other media components include 2 layers of barrier breathable layers and 1 layer of medium 602, the 2 layers of barrier breathable layers are the third barrier breathable layer 601 and the fourth barrier breathable layer 603 respectively, the outer side wall of the third barrier breathable layer 601 abuts against the cavity wall of the accommodating cavity or the groove wall of the auxiliary groove 402 on the mounting seat 401, and the outer side wall of the fourth barrier breathable layer 603 abuts against the cavity wall of the accommodating cavity or the groove wall of the auxiliary groove 402 on the mounting seat 401 to form a medium cavity between the third barrier breathable layer 601 and the fourth barrier breathable layer 603, and the medium 602 is placed in the medium cavity.

[0058] The media on both sides of the filter element 5 can be the same or different.

[0059] The specific types and combinations of the filter media mentioned above can be flexibly selected according to the needs of the consumer group.

[0060] Combine Figure 8As shown, any of the aforementioned auxiliary devices can be combined with the tobacco segments 2 to form a cigarette. For example, any of the aforementioned auxiliary devices 1 can be used to replace the filter of an existing cigarette, and then the auxiliary device 1 and the tobacco segments 2 can be directly connected using the tipping paper 3. The connection between the auxiliary device 1 and the tobacco segments 2 can also be directly connected using other existing connection structures.

[0061] Preferably, when the auxiliary device 1 is connected to the tobacco segment 2, the corresponding parts of the filter core and the filter medium are partially or completely exposed.

[0062] The cigarette described herein replaces the structure of the original cigarette filter, effectively solving the problems existing in the traditional cigarette structure, such as poor toxin filtering effect, physical harm to consumers, lack of ornamental value and warning, etc., and improves the diversity of cigarette taste to meet the needs of various consumer groups.

[0063] Matters not covered above (such as the connection between the popping beads, cigarette tobacco segments and auxiliary devices, etc.) can be directly implemented using existing technologies, so they will not be elaborated here.

[0064] The above-mentioned filter element and auxiliary device can also be used in other filter devices such as electronic cigarettes.

[0065] The above is only a preferred embodiment of the present invention. It should be pointed out that a person skilled in the art can make several similar modifications and improvements without departing from the inventive concept of the present invention, and these should also be regarded as within the scope of protection of the present invention.

Claims

1. A poison filter element, characterized in that: It comprises a main body, wherein the upper and lower ends of the main body are respectively provided with a protrusion, and an upper and lower groove body are provided in the main body, and the two groove bodies are separated by a partition board, and a plurality of through holes are provided on the side wall of each groove body.

2. The poison filter element according to claim 1, characterized in that: The filter element is assembled in the shell, and a cavity is provided on the inner side of the shell corresponding to the filter element. The outer wall of the protrusion is connected and sealed with the cavity wall of the cavity to form a flue gas flow cavity between the outer wall of the filter element and the cavity wall. The through holes on the two grooves are both connected with the flue gas flow cavity. The two protrusions are both annular and coaxially arranged; The two trough bodies are both cylindrical and coaxially arranged, and the opening directions of the two trough bodies are opposite; The plurality of through holes are evenly distributed in an annular direction on the corresponding slot body.

3. The filter element according to claim 2, characterized in that: The shell is made of transparent or translucent material.

4. The poison filter element according to claim 1, characterized in that: The aperture of the through hole is less than or equal to 0.6 mm.

5. Auxiliary device, characterized in that It comprises a shell and a filter core according to any one of claims 1 to 4, a cavity is provided on the inner side of the shell corresponding to the filter core, the filter core is assembled in the cavity, the outer side wall of the protrusion is connected and sealed to the cavity wall of the cavity to form a smoke flow cavity between the outer side wall of the filter core and the cavity wall, and the through holes on the two trough bodies are both connected to the smoke flow cavity.

6. The auxiliary device according to claim 5, characterized in that A pipe sleeve is provided on each side of the shell, and an auxiliary through hole is provided on each pipe sleeve. The cavity runs through the shell and is connected to the auxiliary through hole. The auxiliary through hole is divided into two sections, namely an inner section and an outer section. The inner diameter of the outer section is smaller than the inner diameter of the inner section. The filter medium is filled in the inner section. The filter medium is one or more of filter cotton, explosive bead components, and other media components. The bursting bead assembly includes a bursting bead mounting seat and a bursting bead, wherein the bursting bead is embedded in the bursting bead mounting seat, and the bursting bead mounting seat is a filter cotton; The other medium components all include a barrier air-permeable layer and a medium, and the medium is a plant medium and / or activated carbon.

7. The auxiliary device according to claim 6, characterized in that The shell and the sleeve are coaxially arranged, the outer diameters of the two side ends of the shell correspond to the inner diameters of the inner sections of the auxiliary through holes, the ends of the shell are inserted into the inner sections of the corresponding auxiliary through holes to form a receiving cavity between the filter element and the outer sections of the auxiliary through holes, and the filter medium is filled in the receiving cavity; The filter medium includes other media components, each of which includes 2*n-1 barrier and breathable layers and n layers of media, where n is an integer greater than or equal to 1. The barrier and breathable layers are arranged corresponding to the accommodating cavity, and the four sides of the barrier and breathable layers are in contact with the cavity wall of the accommodating cavity to form a media cavity between two adjacent barrier and breathable layers, and the media is placed in the media cavity.

8. A cigarette, characterized in that It comprises a tobacco segment and an auxiliary device, wherein the auxiliary device comprises a shell and a filter core according to any one of claims 1 to 4, a cavity is provided on the inner side of the shell corresponding to the filter core, the filter core is assembled in the cavity, the outer side wall of the protrusion is connected and sealed to the cavity wall of the cavity to form a smoke flow cavity between the outer side wall of the filter core and the cavity wall, and the through holes on the two trough bodies are both connected to the smoke flow cavity.

9. The cigarette according to claim 8, characterized in that A pipe sleeve is provided on each side of the shell, and an auxiliary through hole is provided on each pipe sleeve. The cavity runs through the shell and is connected to the auxiliary through hole. The auxiliary through hole is divided into two sections, namely an inner section and an outer section. The inner diameter of the outer section is smaller than the inner diameter of the inner section. The filter medium is filled in the inner section. The filter medium is one or more of filter cotton, explosive bead components, and other media components. The bursting bead assembly includes a bursting bead mounting seat and a bursting bead, wherein the bursting bead is embedded in the bursting bead mounting seat, and the bursting bead mounting seat is a filter cotton; The other medium components all include a barrier air-permeable layer and a medium, and the medium is a plant medium and / or activated carbon.

10. The cigarette according to claim 9, characterized in that The shell and the sleeve are coaxially arranged, the outer diameters of the two side ends of the shell correspond to the inner diameters of the inner sections of the auxiliary through holes, the ends of the shell are inserted into the inner sections of the corresponding auxiliary through holes to form a receiving cavity between the filter element and the outer sections of the auxiliary through holes, and the filter medium is filled in the receiving cavity; The filter medium includes other media components, each of which includes 2*n-1 barrier and breathable layers and n layers of media, where n is an integer greater than or equal to 1. The barrier and breathable layers are arranged corresponding to the accommodating cavity, and the four sides of the barrier and breathable layers are in contact with the cavity wall of the accommodating cavity to form a media cavity between two adjacent barrier and breathable layers, and the media is placed in the media cavity.

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