Cigarette with brittle capsule

Abstract

The invention discloses a cigarette with a brittle capsule. The cigarette comprises a tobacco shred section; the filter stick section is arranged at one end of the tobacco shred section and comprises splicing paper bonded with the tobacco shred section; a first filter stick and a second filter stick are arranged in the splicing paper, and the first filter stick and the second filter stick are fixedly connected; the elastic body is sleeved on the outer side of the first filter stick; a brittle capsule is arranged between the two ends of the elastic body; a ventilation area is arranged on the splicing paper; when the elastic body is pressed, the two ends of the elastic body get close to each other to puncture the brittle capsule, when the elastic body is removed by external force, the elastic body, the splicing paper and the first filter stick recover partial deformation, and a mixing cavity is formed between the first filter stick and the splicing paper. According to the scheme, the mixing effect of the smoke and the flavor enhancer and the filtering effect of the filter tip section on the smoke are improved, the pyrolysis condition of the tobacco shred section is improved, and the inhalation amount of small-molecule harmful substances is reduced.

Description

Technical Field

[0001] The present invention relates to the field of cigarettes, and in particular, to a cigarette with a brittle capsule. Background Art

[0002] When a cigarette with a brittle capsule is smoked, the flavor can be improved by squeezing the capsule to release the internal flavor enhancer. However, when the brittle capsule is squeezed, the filter rod is severely deformed, reducing the filtering effect and ventilation efficiency of the filter rod. Moreover, the rupture of the brittle capsule is relatively random, and the amount of the sprayed flavor enhancer is uncertain, resulting in low utilization rate and volatilization amount of the flavor enhancer. The sprayed brittle capsule will also block the gap between the acetate limits of the filter rod, further reducing the filtering effect of the filter rod and increasing the inhalation amount of harmful substances by the user when smoking the cigarette. Summary of the Invention

[0003] In view of the above, the present invention aims to provide a cigarette with a brittle capsule to solve the aforementioned technical problems.

[0004] The technical solution adopted by the present invention is as follows:

[0005] The present invention provides a cigarette with a brittle capsule, which includes:

[0006] A tobacco rod section;

[0007] A filter rod section provided at one end of the tobacco rod section, and the filter rod section includes a splicing paper bonded to the tobacco rod section;

[0008] A first filter rod and a second filter rod are provided inside the splicing paper, and the first filter rod and the second filter rod are fixedly connected;

[0009] An elastic body sleeved outside the first filter rod;

[0010] A brittle capsule is provided between the two ends of the elastic body;

[0011] A ventilation area is provided on the splicing paper;

[0012] When the elastic body is compressed, the two ends of the elastic body approach each other to pierce the brittle capsule. When the external force applied to the elastic body is removed, the elastic body, the splicing paper and the first filter rod recover part of the deformation, and a mixing cavity is formed between the first filter rod and the splicing paper.

[0013] Optionally, the elastic body includes:

[0014] An integrally formed compression section and a bending section, and the compression section is provided at both ends of the bending section;

[0015] A diversion groove provided inside the elastic body;

[0016] A piercing portion provided at the end of the compression section, and the brittle capsule is provided between the piercing portions.

[0017] Optionally, the elastomer further includes:

[0018] A ventilation part located at the middle position of the elastomer;

[0019] Ventilation holes are formed in the ventilation part. The central axis of the ventilation holes is parallel to the central axis of the first filter rod, and the diversion grooves communicate with the ventilation holes.

[0020] Optionally, the outer diameter of the piercing part gradually decreases in the direction away from the elastomer;

[0021] Liquid outlet holes are formed through the piercing part, and one end opening of the liquid outlet holes communicates with the diversion grooves.

[0022] Optionally, a protrusion is formed inside the piercing part.

[0023] Optionally, the mixing cavity includes a middle cavity and side cavities. The middle cavity is surrounded by the end face of the elastomer and the outer surface of the first filter rod;

[0024] When the external force applied to the elastomer is removed, the elastomer, the splicing paper and the first filter rod recover part of their deformation. The first filter rod and the inner side of the splicing paper enclose the side cavities, and the side cavities communicate with the middle cavity.

[0025] Optionally, there are two middle cavities and two side cavities;

[0026] The two middle cavities are respectively distributed at the upper end and the lower end of the elastomer;

[0027] The two side cavities are respectively distributed on one side of the elastomer close to the brittle capsule and on one side of the elastomer far from the brittle capsule;

[0028] The two side cavities communicate with each other through the two middle cavities.

[0029] Optionally, there is a gap between the first filter rod and the second filter rod, and a temporary storage cavity is enclosed between the splicing paper and the first filter rod and the second filter rod.

[0030] The above solution of the present invention has at least the following beneficial effects:

[0031] The above solution of the present invention includes: a tobacco segment; a filter rod segment provided at one end of the tobacco segment, the filter rod segment including splicing paper bonded to the tobacco segment; a first filter rod and a second filter rod are provided inside the splicing paper, and the first filter rod and the second filter rod are fixedly connected; an elastic body sleeved outside the first filter rod; a brittle capsule is provided between the two ends of the elastic body; a ventilation area is provided on the splicing paper; when the elastic body is compressed, the two ends of the elastic body approach each other and pierce the brittle capsule, and when the external force applied to the elastic body is removed, the elastic body, the splicing paper and the first filter rod recover part of the deformation, and a mixing cavity is formed between the first filter rod and the splicing paper. The solution of the present invention relies on the deformation of the elastic body to cause the brittle capsule to rupture directionally and restrict the movement route of the liquid flavoring agent, reducing the obstruction of the liquid flavoring agent to the first filter rod, significantly improving the mixing effect of the smoke and the flavoring agent and the filtering effect of the filter tip segment on the smoke. The elastic body will form a mixing cavity in the filter tip segment during the deformation process, further improving the mixing effect of the smoke and the flavoring agent and the filtering effect of the filter tip segment on the smoke, and improving the pyrolysis conditions of the tobacco segment and reducing the inhalation amount of small molecule harmful substances. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] In order to make the objectives, technical solutions and advantages of the present invention clearer, the present invention will be further described below in conjunction with the drawings, where:

[0033] Figure 1 It is a schematic structural diagram of a cigarette with a brittle capsule provided by an embodiment of the present invention.

[0034] Figure 2 It is an internal schematic diagram of the splicing paper provided by an embodiment of the present invention;

[0035] Figure 3 It is a schematic diagram of the elastic body provided by an embodiment of the present invention Figure 1 ;

[0036] Figure 4 It is a schematic diagram of the elastic body provided by an embodiment of the present invention Figure 2 ;

[0037] Figure 5 It is a schematic diagram of the end face of the second filter rod provided by an embodiment of the present invention;

[0038] Figure 6 It is Figure 5 The sectional view taken along A-A in

[0039] Figure 7 It is Figure 5 The sectional view taken along B-B in

[0040] Figure 8 It is a schematic diagram of the liquid outlet hole provided by an embodiment of the present invention;

[0041] Figure 9It is a schematic diagram of the protrusion provided by an embodiment of the present invention;

[0042] Figure 10 It is a schematic cross-sectional view of the mixing chamber provided by an embodiment of the present invention;

[0043] Figure 11 It is a schematic diagram of the ventilation part provided by an embodiment of the present invention;

[0044] Figure 12 It is a schematic cross-sectional view of the temporary storage chamber provided by an embodiment of the present invention. Detailed implementation manners

[0045] The embodiments of the present invention will be described in detail below. The examples of the embodiments are shown in the drawings, where the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary and are only used to explain the present invention and should not be construed as limiting the present invention.

[0046] An embodiment of a cigarette having a brittle capsule is proposed by the present invention. Specifically, as Figure 1 shown, it includes:

[0047] The brittle capsule, also commonly known as the pop bead, is arranged in the cigarette filter rod. Before smoking the cigarette, the user needs to squeeze the brittle capsule to break it. After the outer skin of the brittle capsule is broken, the liquid flavor enhancer inside leaves the outer skin and has a tendency to volatilize. When the user smokes the cigarette, with the start of the user's sucking action, a pressure drop will be formed at the cigarette filter rod, and the smoke from the burning section of the cigarette, air, and the volatilized flavor enhancer enter the user's mouth.

[0048] During the process of the user squeezing the brittle capsule:

[0049] The user needs to forcefully squeeze the outer side of the cigarette filter rod. After the filter rod near the brittle capsule is extremely deformed, the force continuously applied by the user can cause the brittle capsule to rupture. That is, the premise for the rupture of the pop bead is the extreme compression deformation of the local shape of the filter rod. The local compression deformation of the filter rod will result in different resistances and adsorption capacities in each area of the filter rod. The density of the acetate fiber group is extremely increased after extreme compression deformation, and the resistance to gas passage is extremely increased. According to the law of minimum resistance, when the smoke after the tobacco burns is sucked, it will tend to move towards the part of the filter rod with less severe deformation. As a result, during the sucking process, the amount of smoke passing through the part with less severe deformation is larger. That is, the generation of the extreme deformation area will reduce the working part of the filter rod available for filtration, which will significantly reduce the overall filtration capacity of the filter rod;

[0050] When the user squeezes the outside of the cigarette, the actual contact part between the user and the cigarette is the tipping paper on the outside of the filter rod. According to the existing requirements for ventilation dilution of the filter rod, the normal ventilation of the filter rod ventilation area depends on the openings on the tipping paper. When the user squeezes the tipping paper, it will cause the tipping paper to wrinkle and deform, blocking the openings in the ventilation area and reducing the ventilation rate of the filter rod, thereby increasing the amount of harmful substances such as carbon monoxide and tar absorbed by the user during smoking;

[0051] When the brittle capsule ruptures under pressure, the traces and degree of its rupture are not obvious, and the release amount of the liquid flavoring agent is uncertain. This may result in the fact that during smoking, the volatilization amount of the flavoring agent may not meet the requirements. After the brittle capsule breaks, its outer skin itself plays a role in blocking the smoke. In the case where the filter rod has deformed, the cross-sectional area available for the smoke to pass through becomes smaller, and the resistance to the smoke passing through decreases, which will further reduce the filtering effect when the smoke passes through the filter rod. The liquid flavoring agent enters the filter rod from the outer skin during the extrusion process, which will block the gaps between the acetate fibers and further reduce the filtering effect when the smoke passes through the filter rod, thereby increasing the amount of harmful substances inhaled by the user in a single puff during smoking.

[0052] To solve the above problems, an embodiment of the present application provides a cigarette having a brittle capsule 50, as Figure 1 shown, including a tobacco rod section 10 filled with tobacco and a filter rod section 20 provided at one end of the tobacco rod section 10. The smoke generated after the tobacco rod section 10 is lit will pass through the tobacco rod section 10 and the filter rod section 20 into the user's mouth as the user smokes;

[0053] As Figure 1 and Figure 2 shown, the filter rod section 20 includes a splicing paper 30, a first filter rod 21, and a second filter rod 22. The splicing paper 30 is in the shape of a tubular ring sleeved outside the first filter rod 21 and the second filter rod 22. One end of the first filter rod 21 is close to the tobacco rod section 10, and the second filter rod 22 is located at the end of the first filter rod 21 away from the tobacco rod section 10. When the first filter rod 21, the second filter rod 22, the tubular splicing paper 30, and the tobacco rod section 10 are assembled, they are coaxial. The end of the second filter rod 22 away from the first filter rod 21 is the mouth-end. The splicing paper 30 is fixedly connected to the tobacco rod section 10 to form an integral body of the first filter rod 21, the second filter rod 22, and the tobacco rod section 10;

[0054] As Figure 2 shown, an elastic body 40 is provided between the first filter rod 21 and the splicing paper 30. The elastic body 40 has elasticity. Under the restriction of the inner side of the tubular splicing paper 30, the two ends of the elastic body 40 approach and bend towards each other to form a ring sleeved outside the first filter rod 21. The elastic action of the elastic body 40 causes the two ends of the elastic body 40 to have a tendency to move away from each other and return to the stretched state;

[0055] As Figure 3 andFigure 4 As shown, a diversion groove 43 is formed in the inner side of the elastomer 40 in a circular shape. The diversion groove 43 penetrates through both ends of the elastomer 40. Both ends of the elastomer 40 have piercing parts 44. A brittle capsule 50 is arranged between the two ends of the elastomer 40. In terms of shape, the bent elastomer 40 is circular. The two piercing parts 44 of the elastomer 40 are close to each other. The positions where the two piercing parts 44 of the circular elastomer 40 are located are the piercing segments. The side of the circular elastomer 40 away from the piercing segments is the bending segment 42. The two segments of the circular elastomer 40 located between the piercing segments and the bending segment 42 are both compression segments 41. When the user squeezes the elastomer 40, the compression segments 41 receive pressure, the curvature of the bending segment 42 increases, and the two piercing parts 44 of the piercing segments approach each other;

[0056] The splicing paper 30 has a ventilation area 31 as shown in Figure 1 As shown. The ventilation area 31 includes a number of through holes formed in the splicing paper 30. The ventilation area 31 is located on the side of the brittle capsule 50 away from the first filter rod 21. The ventilation area 31 is integrally close to the tobacco segment 10 and away from the brittle capsule 50. That is, the ventilation area 31 is located between the brittle capsule 50 and the tobacco segment 10 and in the half area of the splicing paper 30 close to the brittle capsule 50;

[0057] When the elastomer 40 is compressed, the two ends of the elastomer 40 approach each other, causing the piercing parts 44 to pierce the brittle capsule 50. When the external force applied to the elastomer 40 is removed, the elastomer 40, the splicing paper 30, and the first filter rod 21 recover part of their deformation, and a mixing chamber 60 as shown in Figure 5 、 Figure 6 and Figure 7 As shown is formed between the first filter rod 21 and the splicing paper 30.

[0058] Combined with a specific usage scenario:

[0059] During use, the user pinches and squeezes the two compression segments 41 of the elastomer 40. The two compression segments 41 are deformed under pressure, causing the bending segment 42 to bend. The two piercing parts 44 of the piercing segments pierce the brittle capsule 50, causing the brittle capsule 50 to rupture. Then, the operator lights the tobacco segment 10 and can start sucking.

[0060] During the process of the user squeezing the elastomer 40, what the user actually squeezes are two compressed sections 41 of the annular elastomer 40. Before the piercing pressure is reached, the end of the piercing portion 44 is always outside the brittle capsule 50. At this time, the compressed section 41 of the elastomer 40 is blocked by the piercing section and the bending section 42. The curvature of the compressed section 41 of the elastomer 40 decreases, and the annular elastomer 40 changes from a circular shape to an elliptical shape. The curvature of the bending section 42 is significantly greater than that of the compressed section 41. The part of the splicing paper 30 in close contact with the compressed section 41 of the elastomer 40 approaches the central axis direction of the first filter rod 21, and the part of the splicing paper 30 in close contact with the bending section 42 and the piercing section deforms in the direction away from the central axis of the first filter rod 21. As the stress applied by the user to the compressed section 41 continuously increases, the pressure of the end of the piercing portion 44 on the brittle capsule 50 continuously increases. When the pressure of the end of the piercing portion 44 on the brittle capsule 50 exceeds the limit, the brittle capsule 50 ruptures at the contact position between it and the end of the piercing portion 44. The liquid flavor enhancer inside the brittle capsule 50 leaves the brittle capsule 50. After the stress applied by the user is unloaded, the elastomer 40 restores to a quasi-circular shape by its own elastic force, and the first filter rod 21 also restores a certain amount of its own deformation;

[0061] During the process of the elastomer 40 restoring its deformation, the two piercing portions 44 of the elastomer 40 move away from each other, the curvature of the bending section 42 becomes smaller, and the curvature of the compressed section 41 increases. The part of the splicing paper 30 in close contact with the compressed section 41 always remains in close contact with the compressed section 41 of the elastomer 40 during the process of the increase in the curvature of the compressed section 41, forming a certain seal. The part of the splicing paper 30 close to the piercing section and the bending section 42 moves away from the central axis of the first filter rod 21 during the deformation of the elastomer 40. After the elastomer 40 restores its deformation, this part of the splicing paper 30 no longer remains in close contact with the piercing section and the bending section 42. In this way, a mixing chamber 60 is formed between the splicing paper 30 and the first filter rod 21;

[0062] After the elastomer 40 is stressed, both the elastomer 40 and the first filter rod 21 inside it deform, and both the elastomer 40 and the first filter rod 21 have a tendency and stress to recover from deformation. For the brittle capsule 50, it is subjected to the pressure exerted by the elastomer 40 caused by the user squeezing the elastomer 40, and also to the reaction force when the first filter rod 21 is compressed. And after the stress applied by the user to the elastomer 40 is unloaded, the recovery deformation of the first filter rod 21 will also continuously exert pressure on the brittle capsule 50, that is, after the stress applied by the user to the elastomer 40 and the aforementioned stress unloading, the brittle capsule 50 is always under pressure, which causes the liquid flavor enhancer inside the brittle capsule 50 to always have the pressure exerted by the outer skin of the brittle capsule 50. In this way, after the brittle capsule 50 ruptures at the part where it contacts the piercing part 44, because the pressure of the liquid inside the brittle capsule 50 is relatively large, the liquid flavor enhancer is forced to spray out from the rupture point. When the end of the piercing part 44 enters the rupture point, the opening of the diversion groove 43 penetrating the end of the piercing part 44 will also enter the brittle capsule 50. The end of the piercing part 44 blocks the opening of the rupture point of the brittle capsule 50, and the spraying path of the liquid flavor enhancer is limited. The diversion groove 43 can play a role in guiding the liquid flavor enhancer with a certain pressure. On the premise that the elastomer 40 is annular, the liquid sprayed from the rupture points on both sides of the brittle capsule 50 will spray out along the diversion groove 43 and move in the diversion groove 43 until the pressure of the liquid inside the brittle capsule 50 is the same as that outside. After the pressure of the liquid inside the brittle capsule 50 is balanced with the outside world, the liquid flavor enhancer separated from the brittle capsule 50 exists in the diversion groove 43 inside the elastomer 40.

[0063] After the brittle capsule 50 ruptures, the user can light the tobacco rod 10 and inhale. The smoke generated by the tobacco rod 10, the gas volatilized from the flavor enhancer in the diversion groove 43, and the air outside the cigarette are fully mixed in the mixing chamber 60.

[0064] Compare the technical solution shown in the embodiment of the present application with the prior art solution in combination with the above specific usage scenarios.

[0065] In the prior art, the rupture of the brittle capsule 50 depends on the user compressing the filter rod. After the filter rod is extremely compressed, the stress can be transmitted to the brittle capsule 50. When the stress transmitted to the brittle capsule 50 is large enough, the brittle capsule 50 will rupture. After the stress applied by the user to the filter rod is unloaded, the part of the filter rod that has undergone extreme deformation is difficult to return to its original shape and the fluffiness of the acetate fiber due to the large deformation amplitude. In the embodiment of the present application, the rupture of the brittle capsule 50 relies on the mutual approach of the piercing portions 44 of the elastomer 40. After the elasticity is subjected to pressure, the pressure on the outer side of the brittle capsule 50 at the end of the piercing portion 44 continuously increases until the piercing portion 44 pierces the brittle capsule 50. The elastomer 40 is a homogeneous structure, and the amount of compression of its own structure is small when its outer shape changes. When the user withdraws the stress, the elastomer 40 can rebound in time to restore the deformation. The amount of deformation of the first filter rod 21 itself is small and will not reach the extreme deformation state. After the user unloads the stress, the first filter rod 21 can recover to the state before being compressed with a large amplitude under the condition of small deformation of itself. Compared with the prior art, the technical solution of the embodiment of the present application can effectively reduce the situation that the filter rod is extremely deformed and difficult to recover due to forcing the brittle capsule 50 to rupture, increase the interval for the actual passage and filtration of the flue gas by the filter rod after the brittle capsule 50 ruptures, and effectively reduce the amount of harmful substances inhaled by the user during suction. At the same time, in the embodiment of the present application, the first filter rod 21 and the second filter rod 22 are independently arranged. When the first filter rod 21 deforms, the first filter rod 21 will not pull the second filter rod 22, and the second filter rod 22 can better maintain its relative shape and filtration ability, which will also effectively reduce the amount of harmful substances inhaled by the user during suction.

[0066] In the prior art, the rupture of the brittle capsule 50 depends on the stress brought by the user transmitted through the filter rod. The direction and intensity of the stress applied by the user to the brittle capsule 50 are uncertain, and the rupture point of the brittle capsule 50 is difficult to predict. The state with the maximum deformation of the filter rod and the rupture state of the brittle capsule 50 occur at the same time, and the liquid inside the brittle capsule 50 is simultaneously released into the filter rod. The liquid flavor enhancer further fills the gaps between the acetate fiber groups, making it difficult for the flue gas to pass through here. This results in a further reduction in the already small area available for the flue gas to actually pass through inside the filter rod. In the embodiment of the present application, the brittle capsule 50 is located outside the first filter rod 21. After the brittle capsule 50 ruptures, the liquid flavor enhancer does not enter the middle of the first filter rod 21 and cause blockage of a large number of gaps inside the first filter rod 21. The rupture of the brittle capsule 50 depends on the mutual approach of the two piercing parts 44 of the elastomer 40, and the rupture point is the piercing point where the two piercing parts 44 pierce the brittle capsule 50. The rupture point of the brittle capsule 50 is determined, and the rupture point of the brittle capsule 50 does not face the first filter rod 21. After the brittle capsule 50 ruptures, the splashing liquid does not enter the first filter rod 21 in large quantities. In the embodiment of the present application, a diversion groove 43 is provided on the inner side of the elastomer 40. The rupture point of the brittle capsule 50 is determined, and the rupture point of the brittle capsule 50 is located at the contact part between the piercing part 44 and the brittle capsule 50. After the piercing part 44 pierces the brittle capsule 50, limited by the pressure of the elastomer 40 and the inner first filter rod 21 and the end face of the end of the piercing part 44, the liquid flavor enhancer inside the brittle capsule 50 enters the diversion groove 43 from the end opening of the diversion groove 43. Constrained by the shape of the diversion groove 43, the movement route of the liquid flavor enhancer is constrained in the diversion groove 43 and surrounds the outside of the first filter rod 21 along the diversion groove 43. Compared with the prior art, in the embodiment of the present application, the movement routes of most of the liquid flavor enhancer are constrained outside the first filter rod 21 by the piercing part 44 and the diversion groove 43, resulting in that most of the flavor enhancer does not enter the first filter rod 21 and then block the filtering area inside the first filter rod 21. Under the condition of the rupture rule of the brittle capsule 50 and the brittle capsule 50 being located outside the first filter rod 21, the outer skin of the ruptured brittle capsule 50 does not play a role in reducing the filtering interval available for the first filter rod 21. Therefore, compared with the prior art, in the process of breaking the brittle capsule 50 in the embodiment of the present application, the broken brittle capsule 50 and the ejected liquid flavor enhancer have less impact on the first filter rod 21, significantly improving the interval available for the flue gas to actually pass through and be filtered by the filter rod after the brittle capsule 50 ruptures, and effectively reducing the amount of harmful substances inhaled by the user during smoking;

[0067] After the brittle capsule 50 ruptures, the movement path of the ejected liquid flavoring agent is restricted by the diversion groove 43. From the movement route of the liquid flavoring agent, the liquid flavoring agent is ejected from the rupture point into the diversion groove 43 and moves from the piercing part 44 of the rupture point towards the piercing part 44 at the other end of the elastomer 40. The liquid flavoring agents ejected from the rupture points of the brittle capsules 50 at the two piercing parts 44 move simultaneously, thereby forming an annular area covered with the liquid flavoring agent outside the first filter rod 21. In this way, the volatilization rate of the liquid flavoring agent can be significantly increased, and when the user sucks, the volatiles of the liquid flavoring agent can be well mixed with the smoke generated by the combustion pile and pyrolysis zone of the tobacco rod 10, significantly improving the smoking flavor of the cigarette;

[0068] In the embodiment of the present application, the ventilation area 31 is located on the side of the brittle capsule 50 away from the first filter rod 21. The ventilation area 31 is generally close to the tobacco rod 10 and far from the brittle capsule 50, that is, the ventilation area 31 is located between the brittle capsule 50 and the tobacco rod 10 and in the half area of the tipping paper 30 close to the brittle capsule 50. When the user applies stress to the elastomer 40, it is actually squeezing the compressed section 41 of the elastomer 40, and the user's finger pulp does not touch or roll the ventilation area 31. During the process of the user continuously applying stress, the outer side of the elastomer 40 near the piercing section moves away from the central axis of the first filter rod 21, and the outer side surface near the piercing section of the elastomer 40 will press against the tipping paper 30 from the inside, so as to keep the ventilation area 31 of the tipping paper 30 tight, reducing the probability of wrinkles occurring in the ventilation area 31 and the vicinity of the ventilation area 31 when the user squeezes the brittle capsule 50, thereby increasing the retention rate of the ventilation function of the ventilation area 31 during the entire process of the user squeezing the brittle capsule 50, that is, after the brittle capsule 50 ruptures, compared with the prior art, most of the ventilation holes in the ventilation area 31 in the embodiment of the present application still remain open, significantly increasing the ventilation rate and ventilation retention rate of the filter rod section 20 after the brittle capsule 50 ruptures;

[0069] In the embodiment of the present application, after the user unloads the stress, the splicing paper 30 basically returns to its original position under the action of the elastomer 40, and the deformation amount of the first filter rod 21 is small and can recover part of the deformation. In this way, a certain gap, that is, the mixing chamber 60, is generated between the outer side of the first filter rod 21 and the inner side of the splicing paper 30 after the elastomer 40 is reset. During the user's suction process, according to the principle of minimum resistance, there is no obstruction of acetate fiber in the mixing chamber 60, and the resistance of the gas flowing in the mixing chamber 60 is small. The flue gas tends to flow into the mixing chamber 60. At this time, the air outside the cigarette will also enter the mixing chamber 60 through the through holes in the ventilation area 31. The air entering from the ventilation area 31 directly enters the mixing chamber 60 with small resistance. The ventilation area 31 is arranged on one side. The air entering from the ventilation area 31 is turbulently mixed with the moving flue gas and moves towards the second filter rod 22 as a whole during the turbulent mixing process. The mixed gas carries away part of the volatilized flavor enhancer. Since the user's squeezing of the elastomer 40 will cause wrinkles on the outer side of the first filter rod 21, the contact area and frequency between the mixed gas and the filter material per unit time and area are increased. During the movement of the mixed gas in the mixing chamber 60, it will collide with the outer side of the first filter rod 21 multiple times, and macromolecules such as tar will adhere to the first filter rod 21 to form filtration. That is, compared with the prior art, the existence of the mixing chamber 60 in the embodiment of the present application improves the mixing effect of the flue gas, air and flavor enhancer and improves the filtration effect of harmful substances in the flue gas;

[0070] In the prior art, the through holes in the filter part play a role in diluting the smoke. The role of diluting the smoke is divided into two categories. The first is to inhale part of the external air during the user's puffing to dilute the smoke. In the above situation, the second is that during the smoldering of the cigarette, the external air enters the pyrolysis zone behind the combustion pile of the tobacco rod from the ventilation holes of the filter, increasing the oxygen supply to the combustion pile, carbonization zone and pyrolysis zone, improving the temperature conditions of the combustion pile, carbonization zone and pyrolysis zone, and reducing the air counterflow in the combustion zone of the tobacco segment 10. As a result, small molecular weight substances such as carbon monoxide generated in the combustion pile and pyrolysis zone can leave the cigarette from the cigarette paper, reducing the amount of carbon monoxide inhaled by the user during puffing. It can be found that during the process of improving the retention amount of harmful substances in the smoldering stage of the cigarette by ventilation of the filter part, the smaller the resistance of the external air entering from the filter part, the better. In the embodiment of the present application, the ventilation area 31 is located between the brittle capsule 50 and the tobacco segment 10, and in the half area of the splicing paper 30 close to the brittle capsule 50. During the smoldering of the tobacco segment 10, the external ventilation will enter the mixing chamber 60 through the through holes in the ventilation area 31 of the filter rod segment 20, and then reach the pyrolysis zone of the tobacco segment 10. Compared with the prior art, in the embodiment of the present application, the resistance of the external air entering the mixing chamber 60 is small, and the resistance of moving in the mixing chamber 60 is small. Overall, when the tobacco segment 10 is smoldering in the embodiment of the present application, the overall resistance of the external ventilation entering the tobacco segment 10 through the ventilation area 31 is small, which increases the air supply amount of the external air to the tobacco segment 10 during the smoldering of the tobacco segment 10. This will effectively reduce the amount of carbon monoxide inhaled by the user during puffing. On the basis of increasing the air flux during the smoldering of the tobacco segment 10, when the user puffs, the external air still needs to pass through the double filtration of the longer first filter rod 21 and the second filter rod 22 after entering the mixing chamber 60, and the filtering effect will not be reduced.

[0071] In summary, in the embodiment of the present application, by setting the annular elastic body 40 and the brittle capsule 50 outside the first filter rod 21, relying on the deformation of the elastic body 40 to cause the brittle capsule 50 to rupture directionally and restrict the movement route of the liquid flavoring agent, the obstruction of the liquid flavoring agent to the first filter rod 21 is reduced, and the mixing effect of the smoke and the flavoring agent and the filtering effect of the filter tip on the smoke are significantly improved. During the deformation process of the elastic body 40, a mixing chamber 60 will be formed in the filter tip section, further improving the mixing effect of the smoke and the flavoring agent and the filtering effect of the filter tip on the smoke, and improving the pyrolysis conditions of the tobacco segment 10 and reducing the inhalation amount of small molecular harmful substances.

[0072] The mutually approaching puncturing parts 44 puncture the brittle capsule 50 at a fixed point, such as Figure 8As shown, in a possible implementation of the embodiment of the present application, the outer diameter of the piercing portion 44 gradually decreases in a direction away from the elastomer 40. The piercing portion 44 is provided with a liquid outlet hole 45 penetrating therethrough. One end opening of the liquid outlet hole 45 communicates with the diversion groove 43 on the elastomer 40. After the piercing portion 44 pierces the brittle capsule 50, the outside of the piercing portion 44 functions to block the brittle capsule 50, so that the liquid flavor enhancer with a higher internal pressure in the brittle capsule 50 is forced to spray out from the liquid outlet hole 45 and flow towards the diversion groove 43, and is subject to the movement constraint of the diversion groove 43, reducing the amount of the liquid flavor enhancer entering the first filter rod 21, thereby improving the overall filtration effect of the filter rod section 20.

[0073] The piercing portion 44 also functions to fix the position of the brittle capsule 50 after piercing the brittle capsule 50. As Figure 9 shown, in a possible implementation of the embodiment of the present application, one end of the piercing portion 44 close to the elastomer 40 protrudes inwardly towards the elastomer 40 to form a protrusion 46. When the piercing portion 44 pierces the brittle capsule 50, the protrusion 46 synchronously enters the brittle capsule 50. In this way, after the stress on the elastomer 40 is unloaded, the piercing portion 44 retracts, and the protrusion 46 closely adheres to the inner side of the outer skin of the brittle capsule 50. As the piercing portion 44 continues to retract, the interaction between the protrusion 46 and the outer skin of the brittle capsule 50 will fix the position of the brittle capsule 50. At the same time, as the protrusion 46 pulls the outer skin of the brittle capsule 50 to deform the brittle capsule 50, the liquid flavor enhancer inside the brittle capsule 50 further leaves the brittle capsule 50 and enters the diversion groove 43 inside the elastomer 40, improving the utilization rate of the liquid flavor enhancer.

[0074] When the user squeezes the elastomer 40, the curvature of the bending section 42 of the elastomer 40 increases. In a possible implementation of the embodiment of the present application, the outer diameter of the bending section 42 is smaller than the outer diameter of the compressed section 41. In this way, when the user squeezes the elastomer 40, the deformation of the elastomer 40 is mainly concentrated on the bending section 42, increasing the number of wrinkles at a location on the first filter rod 21 close to the bending section 42, and at the same time making the position of the rupture point of the brittle capsule 50 more stable.

[0075] As a feasible specific implementation of the embodiment of the present application, the mixing cavity 60 is divided into several parts. As Figure 10 shown, it includes a middle cavity 61 distributed in the middle of the inner side of the filter rod section 20 and two side cavities 62 located on both sides of the inner side of the filter rod section 20;

[0076] The elastomer 40 surrounds the outside of the first filter rod 21. Since the outer tipping paper 30 restricts the diameter of the elastomer 40, the junction of the first filter rod 21 and the elastomer 40 is recessed towards the central axis direction of the first filter rod 21. In this way, a central cavity 61 is formed between the upper surface of the elastomer 40 and the outside of the first filter rod 21, and a central cavity 61 is also formed between the lower surface of the elastomer 40 and the outside of the first filter rod 21;

[0077] When the external force applied to the elastomer 40 is removed, the elastomer 40, the tipping paper 30 and the first filter rod 21 recover part of their deformation. The two compressed sections 41 of the elastomer 40 rebound and closely adhere to the inner side of the tipping paper 30 to form a seal. Part of the tipping paper 30 near the piercing section and the bending section 42 of the elastomer 40 recovers part of its shape after moving away from the central axis direction of the first filter rod 21, but no longer closely adheres to the piercing section and the bending section 42 of the elastomer 40. A gap is generated between the tipping paper 30 and the first filter rod 21. Two side cavities 62 are formed on one side of the elastomer 40 close to the brittle capsule 50 and on the side of the elastomer 40 far from the brittle capsule 50. The two side cavities 62 communicate through the gap between the central cavity 61 and the fibers in the first filter rod 21.

[0078] When the user smokes a cigarette, the air outside the cigarette will enter the side cavity 62 on one side close to the ventilation area 31 from the ventilation area 31. As the user smokes, the gas in the side cavity 62 on the side close to the ventilation area 31 passes through the central cavity 61 and enters the side cavity 62 on the side far from the ventilation area 31. During this process, the flowing gas will carry away part of the volatilized flavor enhancer in the diversion grooves 43 of the elastomer 40, so that the flavor enhancer is mixed with the gas, increasing the volatilization amount of the flavor enhancer and the mixing effect of the flavor enhancer and the mixed flue gas, and improving the smoking taste of the cigarette during smoking.

[0079] The flue gas, the external air and the volatilized gas of the flavor enhancer can be mixed in the mixing cavity 60. The mixing cavity 60 includes two side cavities 62 and two central cavities 61. The freedom degree of the mixed gas in the mixing cavity 60 is large and the movement path is long. When the user squeezes the elastomer 40, the radial contraction of the elastomer 40 will cause several wrinkles to appear on the outside of the first filter rod 21. The number of wrinkles on the part of the first filter rod 21 close to the elastomer 40 is relatively large. In this way, when the mixed gas moves in the mixing cavity 60, especially in the process of the mixed gas in the side cavity 62 on the side close to the ventilation area 31 passing through the central cavity 61 and entering the side cavity 62 on the side far from the ventilation area 31, the mixed gas will contact more wrinkles of the first filter rod 21, increasing the contact area and the number of times between the mixed gas and the filtering material per unit time and area, improving the mixing effect of the flue gas, the air and the flavor enhancer and improving the filtering effect of the harmful substances in the flue gas.

[0080] As a feasible specific implementation manner of the embodiment of the present application, such as Figure 11As shown, the elastomer 40 further includes a ventilation portion 47. In the unfolded state of the elastomer 40, the ventilation portion 47 is located in the middle of the elastomer 40. In the curled state of the elastomer 40, both ends of the elastomer 40 are away from the ventilation portion 47;

[0081] Ventilation holes 48 are formed in the ventilation portion 47, and the central axis of the ventilation holes 48 is parallel to the central axis of the first filter rod 21.

[0082] Combined with a specific usage scenario, when the user is sucking, the negative pressure end is located at the near-mouth end of the second filter rod 22, that is, the end point of the movement of the mixed flue gas is the near-mouth end of the second filter rod 22. Part of the mixed flue gas will pass through the ventilation holes 48 and move towards the near-mouth end of the second filter rod 22. Since the diversion grooves 43 and the ventilation holes are mutually communicated, when the mixed flue gas moves in the ventilation holes, it will cause the fluid in the diversion grooves 43 to move towards the ventilation holes. In this way, the volatilization amount of the flavor enhancer is increased, and due to the tension effect of the liquid flavor enhancer, when the flavor enhancer in the diversion grooves 43 moves towards the ventilation holes, it will drive part of the flavor enhancer inside some brittle capsules 50 into the diversion grooves 43, improving the utilization efficiency of the flavor enhancer.

[0083] As a feasible specific implementation manner of the embodiment of the present application, the bent elastomer 40 is inclined. In the installed state, the piercing portion 44 of the elastomer 40 is close to the tobacco strand section 10, and the ventilation portion 47 of the elastomer 40 is close to the second filter rod 22. In this way, the axial distribution area of the diversion grooves 43 in the filter rod section 20 is increased, further improving the distribution range of the flavor enhancer and the volatilization amount of the flavor enhancer when the subsequent user sucks the cigarette, and improving the overall smoking taste of the cigarette.

[0084] As a feasible specific implementation manner of the embodiment of the present application, as Figure 12 shown, there is a gap between the first filter rod 21 and the second filter rod 22, and the splicing paper 30 and the first filter rod 21 and the second filter rod 22 enclose a temporary storage cavity 23.

[0085] Combined with a usage scenario, when the user applies stress to the elastomer 40, the elastomer 40 undergoes radial contraction, causing a certain deformation of the first filter rod 21. Since there is a gap between the first filter rod 21 and the second filter rod 22 and there is a temporary storage cavity 23, an isolation is formed, and the deformation of the first filter rod 21 will not overly affect the second filter rod 22, ensuring the overall filtering ability of the second filter rod 22 and improving the overall filtering effect of the filter rod section 20;

[0086] After the flue gas passes through the first filter rod 21, it enters the temporary storage chamber 23, and then passes through the second filter rod 22 and enters the user's mouth. Between two puffings, a part of the flue gas can be stored in the temporary storage chamber 23. This part of the flue gas continuously stays in the temporary storage chamber 23, and some harmful substances inside are continuously adsorbed by the first filter rod 21 and the second filter rod 22. When the user puffs again, the aforementioned flue gas can quickly enter the user's mouth, enabling the user to feel the flue gas of the cigarette, improving the phenomenon of the flue gas becoming lighter and the flue gas lagging caused by the setting of the ventilation area 31, and enhancing the overall taste of the cigarette during puffing.

[0087] In the embodiments of the present invention, if there are any expressions of orientation, they are relative concepts based on the embodiments. In addition, "at least one" means one or more, and "a plurality" means two or more. "And / or" describes the association relationship of associated objects and indicates that there can be three relationships. For example, A and / or B can represent the situation of A existing alone, A and B existing simultaneously, and B existing alone. Where A and B can be singular or plural. The character " / " generally represents an "or" relationship between the preceding and following associated objects. "At least one of the following" and its similar expressions refer to any combination of these items, including any combination of single items or plural items. For example, at least one of a, b, and c can represent: a, b, c, a and b, a and c, b and c, or a and b and c, where a, b, and c can be single or multiple.

[0088] The structure, features, and effects of the present invention have been described in detail based on the embodiments shown in the drawings above. However, the above are only the preferred embodiments of the present invention. It should be noted that for the technical features involved in the above embodiments and their preferred modes, those skilled in the art can reasonably combine and match them into a variety of equivalent solutions without departing from or changing the design concept and technical effects of the present invention. Therefore, the scope of the present invention is not limited by the drawings. As long as the changes made according to the concept of the present invention or the equivalent embodiments modified to equivalent changes still do not exceed the spirit covered by the description and the drawings, they should all be within the protection scope of the present invention.

Claims

1. A cigarette with a brittle capsule, characterized in that, Comprising: A tobacco rod section (10); A filter rod section (20) provided at one end of the tobacco rod section (10), the filter rod section (20) including a splicing paper (30) bonded to the tobacco rod section (10); A first filter rod (21) and a second filter rod (22) are provided inside the splicing paper (30), and the first filter rod (21) and the second filter rod (22) are fixedly connected; An elastomer (40) sleeved outside the first filter rod (21); A brittle capsule (50) is provided between the two ends of the elastomer (40); A ventilation area (31) is provided on the splicing paper (30); When the elastomer (40) is compressed, the two ends of the elastomer (40) approach each other and pierce the brittle capsule (50). When the external force applied to the elastomer (40) is removed, the elastomer (40), the splicing paper (30) and the first filter rod (21) recover part of their deformation, and a mixing cavity (60) is formed between the first filter rod (21) and the splicing paper (30).

2. A cigarette having a brittle capsule according to claim 1, wherein, The elastomer (40) includes: An integrally formed compression section (41) and a bending section (42), and the compression section (41) is provided at both ends of the bending section (42); A diversion groove (43) provided inside the elastomer (40); A piercing part (44) provided at the end of the compression section (41), and the brittle capsule (50) is provided between the piercing parts (44).

3. A cigarette having a brittle capsule according to claim 2, characterized in that, The elastomer (40) further includes: A ventilation part (47), and the ventilation part (47) is located at the middle position of the elastomer (40); Ventilation holes (48) are provided on the ventilation part (47), the central axis of the ventilation holes (48) is parallel to the central axis of the first filter rod (21), and the diversion groove (43) communicates with the ventilation holes (48).

4. A cigarette having a brittle capsule according to claim 2, characterized in that, The outer diameter of the piercing part (44) gradually decreases in the direction away from the elastomer (40); Liquid outlet holes (45) are formed through the piercing part (44), and one end opening of the liquid outlet holes (45) communicates with the diversion groove (43).

5. A cigarette having a brittle capsule according to claim 2, characterized in that, A protrusion (46) is formed inside the piercing part (44).

6. A cigarette having a brittle capsule according to claim 1, characterized in that, The mixing cavity (60) includes a middle cavity (61) and side cavities (62), and the middle cavity (61) is surrounded by the end face of the elastomer (40) and the outer surface of the first filter rod (21); When the external force applied to the elastomer (40) is removed, the elastomer (40), the splicing paper (30) and the first filter rod (21) recover part of their deformation, and the side cavities (62) are surrounded by the inner sides of the first filter rod (21) and the splicing paper (30), and the side cavities (62) communicate with the middle cavity (61).

7. A cigarette having a brittle capsule according to claim 6, wherein, Both the middle cavity (61) and the side cavities (62) have two; The two middle cavities (61) are respectively distributed at the upper end and the lower end of the elastomer (40); The two side cavities (62) are respectively distributed on one side of the elastomer (40) close to the brittle capsule (50) and on one side of the elastomer (40) far from the brittle capsule (50); The two side cavities (62) communicate with each other through the two middle cavities (61).

8. A cigarette having a brittle capsule according to claim 1, characterized in that, There is a gap between the first filter rod (21) and the second filter rod (22), and a temporary storage cavity (23) is formed between the splicing paper (30), the first filter rod (21) and the second filter rod (22).

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