CN220712878U

CN220712878U - Filter stick structure and cigarette

Info

Publication number: CN220712878U
Application number: CN202322317104.2U
Authority: CN
Inventors: 张丽; 陈晓琪; 杨勇飞
Original assignee: Kunming Cellulose Fibers Co ltd; Zhuhai Cellulose Fibers Co ltd; Nantong Cellulose Fibers Co Ltd
Current assignee: Kunming Cellulose Fibers Co ltd; Zhuhai Cellulose Fibers Co ltd; Nantong Cellulose Fibers Co Ltd
Priority date: 2023-08-28
Filing date: 2023-08-28
Publication date: 2024-04-05
Anticipated expiration: 2033-08-28

Abstract

The utility model discloses a filter stick structure which is connected to the rear part of a cigarette tobacco section and comprises a mouth piece section and a cooling section, wherein the cooling section comprises a flow guide piece connected to the front end of the mouth piece section, and microsphere particles are at least partially filled in a cigarette tube limiting aerosol flow channel formed by the flow guide piece and forming paper wrapping the outer part of the cooling section. The filter stick structure can reduce the temperature of smoke in the smoking process of the cigarette, reduce the burning sensation of the smoke, increase the aroma in the smoke and reduce the nicotine and tar in the smoke. The utility model also discloses a cigarette containing the filter stick structure. The cigarette disclosed by the utility model has the filter stick structure, has a better cooling effect, can avoid burning sensation of a smoke inlet, and the microsphere particles added in the filter stick structure can play a role in reducing tar and reducing harm, and the aroma substances in the microsphere particles can be used for enhancing the aroma of the smoke generated by burning tobacco, so that the smoking quality of the cigarette is improved.

Description

Filter stick structure and cigarette

Technical Field

The utility model belongs to the technical field of cigarette structures, and relates to a filter stick structure.

Background

With the gradual development of the tobacco market and the continuous increase of the diversified demands of consumers, new products aiming at different demands, such as heating non-burning cigarettes and the like, are presented in tobacco products. The heating non-burning cigarette releases smoke in tobacco by heating rather than burning, so that a smoker obtains a smoking feel similar to that of a traditional cigarette, and compared with a conventional cigarette, the heating non-burning cigarette has better taste. However, the problems of higher smoke inlet temperature exist in heating non-burning cigarettes and traditional cigarettes, so that a smoker produces obvious burning sensation when smoking, and simultaneously, higher requirements are put forward on aspects of reducing tar, reducing harm and the like of cigarette products.

Disclosure of Invention

The utility model aims to provide a filter stick structure so as to improve the cooling effect of smoke aerosol and simultaneously have a certain effect of reducing the contents of nicotine and tar in the smoke aerosol.

The aim of the utility model can be achieved by the following technical scheme:

the utility model provides a filter rod structure, includes mouth piece section and cooling section, the cooling section is including connecting the water conservancy diversion piece at mouth piece section front end, at least part is filled with the microballon granule in the aerosol runner that the cigarette pipe of water conservancy diversion piece and encapsulation outside the cooling section prescribe a limit to.

Optionally, the flow guiding piece comprises three or more than three partition plates which are distributed around the axis at equal angles.

Optionally, the baffle comprises a helical baffle formed about an axis, the helical baffle having an outer diameter equal to an inner diameter of the cigarette.

Optionally, the water conservancy diversion spare includes the honeycomb duct, the honeycomb duct external diameter is less than the internal diameter of cigarette pipe, and its front end is connected with the front end board, and the rear end is connected with the rear end board, has evenly distributed a plurality of radial air guide holes that extend on its lateral wall, the diameter of rear end board equals the internal diameter of cigarette pipe, has seted up the air vent on it.

Optionally, microsphere particles are filled in a gap between the side wall of the guide pipe and the inner wall of the cigarette tube.

Optionally, the cross section of the flow guiding pipe is round.

Optionally, the cross section of the flow guiding pipe is polygonal.

Optionally, the cross section of the honeycomb duct is gear-shaped.

Optionally, an inner sleeve is further arranged in the guide pipe, the outer diameter of the inner sleeve is smaller than the inner diameter of the guide pipe, and a plurality of air passing holes are uniformly distributed on the outer wall of the inner sleeve.

Optionally, the water conservancy diversion piece includes two relative first baffles and two relative second baffles that set up, first baffle and second baffle are perpendicular, the axial limit of first baffle and second baffle is laminated with the inner wall of cigarette pipe.

Optionally, a front filter segment is further included, the front filter segment being connected to the front portion of the baffle.

Optionally, the air guide device further comprises a front outer sleeve, and the outer sleeve is sleeved outside the air guide piece.

Optionally, the microsphere particles have a particle size of 100 to 3000 microns.

The utility model also discloses a cigarette, which comprises a cigarette tube, wherein the front part of the cigarette tube is provided with a tobacco section, and the rear part of the cigarette tube is packaged with the filter stick structure described in any one of the above.

The beneficial effects of the utility model include:

the filter rod structure disclosed by the utility model is provided with the cooling section, the cooling section is internally provided with the guide piece, the filter rod structure is arranged in the cigarette tube, the guide piece can limit the flow of smoke in the filter rod structure, so that the smoke can only flow along the flow channel defined by the guide piece and the cigarette tube, better cooling effect can be realized, and burning sensation caused by overhigh temperature of a smoke inlet is avoided. In addition, microsphere particles are filled in the flow channel defined by the flow guide piece and the cigarette tube, fragrant substances are added on the microsphere particles, the smoke can be wrapped in the volatilized fragrant position in the flowing process, so that the smoke has better smoking feeling, the taste of the cigarette is improved, the flowing path of the smoke is prolonged due to gaps among the microsphere particles, the time of the smoke in the cooling section is further prolonged, and the cooling of the smoke is facilitated. On the other hand, the filled microsphere particles can also play a role in reducing tar and reducing harm.

The cigarette disclosed by the utility model has the advantages that the filter stick structure has a better cooling effect, the burning sensation of a smoke inlet can be avoided, the microsphere particles added in the filter stick structure can be used for enhancing the flavor of smoke generated by burning tobacco, and the smoking feeling of the cigarette is improved.

Drawings

Fig. 1 is an isometric view of a baffle of example 1 of a filter rod construction in accordance with the present disclosure.

Fig. 2 is a schematic structural diagram of an embodiment 1 of a filter rod structure disclosed in the present utility model.

Fig. 3 is an isometric view of a baffle of example 2 of a filter rod construction in accordance with the present disclosure.

Fig. 4 is a schematic structural diagram of an embodiment 2 of a filter rod structure disclosed in the present utility model.

Fig. 5 is an isometric view of a baffle of example 3 of a filter rod construction in accordance with the present disclosure.

Fig. 6 is a schematic structural diagram of an embodiment 3 of a filter rod structure disclosed in the present utility model.

Fig. 7 is an isometric view of a baffle of example 4 of a filter rod construction in accordance with the present disclosure.

Fig. 8 is a schematic structural diagram of an embodiment 4 of a filter rod structure disclosed in the present utility model.

Fig. 9 is an isometric view of another angle of a baffle of example 4 of a filter rod construction in accordance with the present disclosure.

Fig. 10 is a schematic view of a filter rod structure according to example 4 of the present disclosure.

Fig. 11 is an isometric view of a baffle of example 5 of the filter rod construction of the present disclosure.

Fig. 12 is a schematic view of a filter rod structure of example 5 of the present disclosure.

Fig. 13 is a schematic view of a filter rod structure according to example 6 of the present disclosure.

Fig. 14 is a schematic cross-sectional view of a cigarette according to the present disclosure.

Fig. 15 is a schematic cross-sectional structure of a comparative cigarette.

In the figure: 100. a mouthpiece section; 200. a front filtering section; 300. tobacco segments; 400. forming paper; 500. a cooling section; 501 a deflector; 502. a partition plate; 503. a spiral deflector; 504. a flow guiding pipe; 505. an air guide hole; 506. a front end plate; 507. a rear end plate; 508. a vent hole; 509. an inner sleeve; 510. an overflow hole; 511. a first separator; 512. a second separator; 513. an outer sleeve; 600. microsphere particles.

Detailed Description

The utility model will be further described with reference to the drawings and examples.

Example 1

Fig. 1-2 show a filter rod structure according to the present disclosure, which includes a mouthpiece segment 100 and a cooling segment 500 connected to the front end of the mouthpiece segment 100, wherein the mouthpiece segment 100 is a columnar member mainly formed of an aerosol filter material, and the cooling segment 500 is used for improving the cooling effect of the filter rod structure and improving the smoking feeling when smoking cigarettes.

The cooling section 500 includes a baffle 501, the baffle 501 having an axis and including a plurality of divider plates 502 equiangularly disposed about the axis. Because the radial length of the partition plate 502 is substantially equal to half of the inner diameter of the cigarette tube, and the partition plate 502 penetrates the cooling section 500, that is, the partition plate 502 may equally divide the lumen in which the cooling section 500 is located into a plurality of substantially equal flow channels. In order to further improve the cooling effect of the cooling section 500 and increase the flavor of the cigarettes and enrich the smoking taste of the cigarettes, the flow channels defined by the partition plate 502 and the cigarette tubes are filled with microsphere particles 600, and the microsphere particles 600 have low-volatility components such as flavor components of dried orange peel, licorice, coffee, peppermint and the like in a coating and soaking mode, so that when aerosol smoke formed by burning tobacco in the cigarettes flows in the filter stick, the low-volatility components attached to the microsphere particles 600 are sucked into the mouth of a smoker along with the aerosol smoke, and the smoker obtains richer taste. In addition, a large number of gaps are formed between the microsphere particles 600, and the gaps can form flow channels for flowing the flue gas, and the lengths of the flow channels are obviously longer than the length of the cooling section 500, so that the microsphere particles 600 of the flue gas in the cooling section 500 can prolong the flowing time of the flue gas in the cooling section 500, and further improve the cooling effect of the cooling section 500.

Further, the surface of the microsphere particle 600 is provided with a porous structure and/or a plurality of micro-voids, and the voids can provide a path for the flow and diffusion of the flue gas aerosol, and on the other hand, the holes and the micro-voids can also have a certain interception effect on the nicotine and tar in the flue gas aerosol, so that the flue gas aerosol has lower content of harmful substances such as nicotine and tar before the inlet.

Further, in order to further reduce the content of nicotine and tar in the flue gas aerosol, the microsphere particles 600 are densely filled, so that gaps among the microsphere particles 600 are reduced, and the interception effect on harmful substances such as nicotine and tar is improved.

The partition plate 502 can also provide a structural support effect for the cigarette tube of the cooling section 500, and avoid deformation of the cigarette tube at the position of the cooling section 500.

Further, in order to avoid the combustion of tobacco to the final ignition of the microsphere particles 600 and the guide 501, the filter rod structure further has a front filter section 200 disposed in front of the cooling section 500, and the front filter section 200 can avoid the combustion of tobacco to ignite the microsphere particles 600 on the one hand and can further improve the filtering effect on the smoke. The front end of the partition plate 502 abuts against the rear end of the front filter segment 200, and the rear end abuts against the front end of the mouthpiece segment 100.

In an exemplary embodiment, the flow guide 501 includes three partition plates 502 disposed at equal angles, and an included angle between two adjacent partition plates 502 is 120 °.

In an exemplary embodiment, the shape of the microspheroidal particle 600 may be regular or irregularly shaped; the particle size range of the microsphere particles 600 is 100-3000 micrometers, and the stacking density of the microsphere particles 600 is 0.05-0.55 g/mL.

In an exemplary embodiment, the microspheroidal particle 600 is impregnated, coated or otherwise has a flavored low volatility component, such as a flavored component of dried orange peel, licorice, coffee, peppermint, and the like.

In an exemplary embodiment, the primary component of the microspheroidal particle 600 is cellulose diacetate, which has a combined acid number in the range of 40% to 62%.

In another alternative embodiment, the main component of the microsphere particle 600 may be a mixture of cellulose diacetate and other component materials, including one or more of polymer materials, gel materials, phase change energy storage materials, organic particles, inorganic particles, etc.

The preparation of the material of the microspheroidal particle 600 is consistent with that disclosed in the patent publication No. CN 109700070A.

In an exemplary embodiment, the main raw material of the flow guide 501 may be one of cellulose, polyolefin, polyester, polyacrylate, polystyrene, and polyethylene.

In an exemplary embodiment, the main raw material of the flow guiding element 501 is cellulose acetate, and the combined acid value is 40% -62%.

In an exemplary embodiment, the plasticizer added to the baffle 501 is food grade, and may include: one or more of phthalate esters, polyethylene glycols and glyceryl triacetate.

In an exemplary embodiment, the plasticizer is added to the baffle 501 in an amount of 20% to 40%.

Example 2

As shown in fig. 3 to 4, in the present embodiment, the deflector 501 includes a spiral deflector 503 formed around an axis, and the aerosol entering the cooling section 500 flows toward the mouthpiece section 100 along a spiral flow path defined by the spiral deflector 503. The spiral deflector 503 significantly prolongs the flow path of the aerosol, that is, prolongs the residence time of the aerosol in the cooling section 500, which is helpful for heat dissipation and cooling of the aerosol.

In other embodiments, the middle portion of the flow guiding member 501 is formed with a flow passage defined by the inner edge of the spiral flow guiding plate 503, the flow passage extends along the axial direction, and a part of the flue gas flowing into the cooling section 500 passes through the cooling section 500 through the flow passage, and another part of the flue gas flows along the flow guiding passage defined by the surface of the spiral flow guiding plate 503.

Likewise, in this embodiment, the cooling section 500 is also filled with microsphere particles 600. Specifically, the gap between the flow channel of the spiral deflector 503 and the spiral plate is filled with the microsphere particles 600 to ensure that the smoke entering the mouthpiece section 100 is in contact with the microsphere particles 600.

The diameter of the spiral baffle 503 is substantially equal to the inner diameter of the cigarette tube, and the spiral baffle 503 can also provide support for the cigarette tube of the cooling section 500.

Example 3

As shown in fig. 5 to 10, in this embodiment, the baffle 501 includes a guide tube 504 disposed substantially coaxially with the cigarette tube, the guide tube 504 has an outer diameter smaller than an inner diameter of the cigarette tube, a front end plate 506 closing a front end opening of the guide tube 504 is connected to a front end thereof, a rear end plate 507 extending radially is also connected to a rear end thereof, wherein a diameter of the front end plate 506 coincides with an outer diameter of the guide tube 504, and a diameter of the rear end plate 507 is substantially equal to the inner diameter of the cigarette tube, so that when the baffle is placed in the cigarette tube, the front end plate 506 of the baffle abuts against a rear end surface of the front filter section 200, the rear end plate 507 of the baffle abuts against a front end surface of the mouthpiece section 100, and an outer periphery of the rear end plate 507 abuts against an inner wall of the cigarette tube. The side wall of the flow guide pipe 504 is provided with a plurality of radially extending air guide holes 505, the rear end plate 507 is provided with air holes 508, aerosol entering the cooling section 500 can firstly spread and spread into a containing cavity defined by the flow guide pipe 504 and the inner wall of the cigarette tube due to the blocking of the front end plate 506, the heat of the aerosol can be quickly conducted to the outside of the cigarette tube through the wall of the cigarette tube, the aerosol can be quickly cooled, meanwhile, the outer periphery of the rear end plate 507 is attached to the inner wall of the cigarette tube, namely the aerosol entering the containing cavity can be blocked by the rear end plate 507, so that the aerosol cannot directly flow into the mouthpiece section 100, and can only flow into the cavity of the flow guide pipe 504 from the air holes 505, and then can enter the mouthpiece section 100 through the air holes 508 arranged on the rear end plate 507, so that the flow path of the aerosol can be effectively prolonged, and the cooling effect of the cooling section 500 can be further improved. In addition, it is also necessary to see that the front end plate 506 of the flow guide pipe 504 also restricts the flow of the aerosol, so that the flow cross section of the aerosol after entering the cooling section 500 is rapidly reduced, and thus the flow velocity of the aerosol in the cooling section 500 is increased, and the temperature is reduced along with the increase in the flow velocity, and the temperature of the aerosol is further reduced. Similarly, the air hole 505 formed in the duct 504 and the air hole 508 formed in the rear plate 507 reduce the flow cross section of the aerosol, and also have the effect of reducing the aerosol temperature.

The accommodating cavity defined by the flow guide pipe 504 and the inner wall of the cigarette tube is filled with microsphere particles 600, so that the aerosol entering the accommodating cavity is fully contacted with the microsphere particles 600 in the flowing process, on one hand, the flowing path of the aerosol is prolonged, the residence time of the aerosol in the accommodating cavity is prolonged, the cooling effect is improved, and on the other hand, the fragrance attached to the microsphere particles 600 can be diffused into the aerosol to perfume the aerosol.

In an exemplary embodiment, the cross-section of the draft tube 504 is projected as a polygon on a horizontal plane. As shown in fig. 3, the cross section of the draft tube 504 has a projection shape on the horizontal plane that is similar to the projection shape of the gear shape having six teeth on the horizontal plane.

Example 4

In this embodiment, the cross section of the flow guiding pipe 504 is a circular pipe, as shown in fig. 7 to 8.

As shown in fig. 10, an inner sleeve 509 is further disposed inside the flow-guiding tube 504, and the outer diameter of the inner sleeve 509 is smaller than the inner diameter of the flow-guiding tube 504, in other words, there is a space between the wall of the inner sleeve 509 and the wall of the flow-guiding tube 504. The inner sleeve 509 is also provided with radial flow-through holes 510, from the aerosol entering the flow-guide tube 504 through the flow-through holes 510 in the inner sleeve 509 into the inner sleeve 509 and finally from the ventilation holes 508 in the rear end plate 507 into the mouthpiece section 100. The inner sleeve 509 can further limit the flow of aerosol and prolong the residence time of aerosol for better cooling effect.

Example 5

Referring to fig. 11 to 12, in this embodiment, the flow guiding member 501 has a zigzag structure, that is, the flow guiding member 501 includes two first partition plates 511 disposed opposite to each other and two second partition plates 512 disposed opposite to each other, where the first partition plates 511 and the second partition plates 512 are vertically connected to form a zigzag skeleton.

The groined skeleton may divide the lumen of the cooling section 500 enclosed in the cigarette tube into 9 axially extending flow passages including the middle flow passage 510, and these flow passages are filled with the microsphere particles 600, so as to ensure that the flue gas entering the mouthpiece section 100 is in contact with the microsphere particles 600.

Further, the shape of the outer end surface of the first partition 511 and the second partition 512 extending along the axial direction is matched with the shape of the inner wall of the cigarette tube, so as to ensure the supporting effect on the cigarette tube.

Example 6

In this embodiment, as shown in fig. 13, the cooling section 500 further includes an outer sleeve 513, and the outer sleeve 513 is sleeved on the outer side of the flow guiding member 501. The outer diameter of the outer sleeve 513 is equal to the inner diameter of the cigarette tube so that the outer sidewall of the outer sleeve 513 can conform to the inner wall of the cigarette tube. The outer sleeve 513 may increase the structural rigidity of the cooling section 500, avoiding deformation of the cooling section 500.

The utility model also discloses a cigarette comprising the filter stick structure.

As shown in fig. 14, a cigarette includes a smoke generating section composed of tobacco and a filter, wherein the smoke generating section and the filter are both enclosed in a cigarette tube formed by a forming paper 400, the smoke generating section is disposed in the front of the cigarette tube, and the filter is disposed in the rear of the cigarette tube, and the filter adopts the filter rod structure described above.

Due to the adoption of the filter stick structure disclosed by the utility model, the cigarette disclosed by the utility model has relatively low inlet temperature during smoking, better smoking feeling can be obtained, and meanwhile, the microsphere particles filled in the filter stick structure further improve the cooling effect of the cooling section on smoke, and the low-volatility components on the microsphere particles 600 add richer fragrance to the smoke and enrich the flavor of the cigarette.

The cigarette is a conventional cigarette or a heated non-combustible cigarette, or other cigarette product requiring the burning or heating of tobacco or tobacco analogs.

With the cigarettes shown in fig. 15 as a comparative example, cigarettes using the filter rod structure of example 1 described above were selected as first test cigarettes, and cigarettes using the filter rod structure of example 2 were selected as second test cigarettes for smoke temperature testing.

It should be noted that the cigarettes used for the test all had the same shape and size. Specifically, the circumference length of the cigarettes is 21.8mm. The filter stick structure of the comparative example cigarette comprises a mouthpiece section 100 which is 8mm long and made of ultra-high Shan Dan acetate fiber and a cooling section 500 which adopts a PLA (poly acetic acid) plastic film with 15mm long. The first test cigarette filter rod structure differs from the comparative cigarette filter rod structure in that the PLA plastic film segments are replaced with the baffle 501 disclosed in example 1, and correspondingly, the filter rod structure in the second test cigarette replaces the PLA plastic film segments with the baffle 501 disclosed in example 2. The cooling section 500 of both the first test cigarette and the second test cigarette are filled with microsphere particles 600.

Simulated smoking was performed according to the cigarette smoking model specified in national standard GB/T19609-2004, using the canadian deep drawing pattern (HCI) with smoking parameters of: suction volume 55mL, suction interval 30s, suction duration 2s. The temperature values of the smoke of the smoked 11 cigarettes were measured using a thermocouple temperature detector, wherein the temperature at the center of the cigarette filter rod 0mm from the mouth end, and the test results are shown in the following table.

Table 1: cigarette mainstream smoke temperature (Unit:. Degree.C.)

Number of suction ports	Comparative example	First test cigarette	Second test cigarette
				1	59.0	45.0	49.7
2	60.9	52.8	53.0
				3	56.8	49.1	50.6
4	49.3	46.1	48.0
				5	45.0	44.2	46.0
6	41.0	41.5	43.8
				7	38.7	39.0	41.9
8	36.7	37.0	40.1
				9	34.8	35.3	38.1
10	33.0	34.1	36.7
				11	30.7	32.6	34.3
Maximum temperature	60.9	52.8	53.0

Table 2: cigarette smoke analysis data

As can be seen from table 1, the first test cigarette, the second test cigarette, and the comparative example can significantly reduce the first few puffs of the consumer, providing a milder and more comfortable smoking experience.

Further, the smoke components generated by the cigarettes are tested by referring to YC/T156-2001, and the results are shown in Table 2, compared with the comparative example, the first test cigarette and the second test cigarette are adopted, and a large amount of microsphere particles 600 are densely filled in the filter stick structure, so that the release amount of nicotine and tar in the smoke can be reduced, and the effects of reducing tar and reducing harm are achieved.

The foregoing description of the embodiments is provided to facilitate the understanding and appreciation of the utility model by those skilled in the art. It will be apparent to those skilled in the art that various modifications can be readily made to these teachings and the generic principles described herein may be applied to other embodiments without the use of the inventive faculty. The utility model is not limited to the above description of the embodiments and the description of the embodiments, and those skilled in the art, based on the disclosure of the utility model, should make improvements and modifications without departing from the scope of the utility model.

Claims

1. The utility model provides a filter rod structure, includes mouth piece section and cooling section, its characterized in that: the cooling section comprises a guide piece connected to the front end of the mouth piece section, and microsphere particles are at least partially filled in an aerosol flow passage defined by the guide piece and a cigarette tube packaged outside the cooling section.

2. A filter rod structure according to claim 1, wherein: the flow guide piece comprises three or more than three partition plates which are distributed around the axis at equal angles.

3. A filter rod structure according to claim 1, wherein: the guide piece comprises a spiral guide plate which is formed around the axis, and the outer diameter of the spiral guide plate is equal to the inner diameter of the cigarette.

4. A filter rod structure according to claim 1, wherein: the guide piece comprises a guide pipe, the outer diameter of the guide pipe is smaller than the inner diameter of the cigarette pipe, the front end of the guide pipe is connected with a front end plate, the rear end of the guide pipe is connected with a rear end plate, a plurality of radially extending air guide holes are uniformly distributed on the side wall of the guide pipe, the diameter of the rear end plate is equal to the inner diameter of the cigarette pipe, and air holes are formed in the rear end plate.

5. The filter rod structure of claim 4, wherein: microsphere particles are filled in gaps between the side wall of the guide pipe and the inner wall of the cigarette tube.

6. A filter rod structure according to claim 5, wherein: the cross section of the flow guide pipe is round.

7. A filter rod structure according to claim 5, wherein: the cross section of the flow guide pipe is polygonal.

8. A filter rod structure according to claim 5, wherein: the cross section of the honeycomb duct is gear-shaped.

9. A filter rod structure according to claim 5, wherein: the guide pipe is internally provided with an inner sleeve, the outer diameter of the inner sleeve is smaller than the inner diameter of the guide pipe, and a plurality of air passing holes are uniformly distributed on the outer wall of the guide pipe.

10. A filter rod structure according to claim 1, wherein: the guide piece comprises two first partition plates and two second partition plates, wherein the first partition plates are arranged oppositely, the second partition plates are perpendicular to the first partition plates, and the axial edges of the first partition plates and the second partition plates are attached to the inner wall of the cigarette tube.

11. A filter rod structure according to claim 1, wherein: the filter also comprises a front filter section, wherein the front filter section is connected to the front part of the flow guiding piece.

12. A filter rod structure according to claim 2, wherein: the air guide device further comprises a front outer sleeve, and the outer sleeve is sleeved outside the air guide piece.

13. A filter rod structure according to claim 2, wherein: the particle size of the microsphere particles is 100-3000 microns.

14. A cigarette, characterized in that: comprising a cigarette tube, the front part of the cigarette tube is provided with a tobacco section, and the rear part is encapsulated with the filter stick structure of any one of claims 1 to 13.