A sealing piece with a petal core and a cigarette or cigarette cartridge containing the same

Abstract

The present invention belongs to the field of heated cigarettes, and specifically relates to a plugging member with a petal core and its use. The plugging member (II) comprises: a plugging member body with a hollow interior and a petal core (3); wherein the plugging member body comprises: an input hole (21) and an output hole (11); the petal core (3) comprises a head (31), and the head (31) is accommodated in the input hole (21), and there is a gap between the outer wall of the head (31) and the inner wall of the input hole (21) that serves as an air flow channel. The plugging member of the present invention has a hollow cavity, and smoke circulation is achieved at both ends through the input hole and the output hole. The petal core is set at the bottom of the plugging member, and the head of the petal core is set in the input hole, and the gap between the head and the input hole forms an air flow channel. In this way, the size of the input hole and the output hole can be designed to be relatively large, avoiding the process complexity of directly setting a small hole as an air flow channel. Therefore, the plugging member of the present invention greatly reduces the difficulty of processing.

Description

Technical Field

[0001] The present invention belongs to the field of heated cigarettes, and in particular relates to a sealing piece with a petal core and a cigarette stick or a cigarette cartridge containing the same. Background Art

[0002] With improved living standards, people are paying more and more attention to their health, and in recent years, the health concerns surrounding smoking have garnered significant attention. To meet evolving consumer demand, major domestic and international companies have developed various heat-not-burn (HNB) alternatives to traditional cigarettes. HNB cigarettes generate smoke from the smoking section of heated tobacco, and their smoke has a well-received flavor. Currently, commercially available HNB cigarettes primarily consist of a smoking section, a hollow support section, a cooling section, and a filter section. The tobacco within the smoking section may be in the form of reconstituted tobacco leaf flakes, shredded tobacco, granular tobacco, or block tobacco, either organized or randomly filled. When the tobacco within the smoking section is heated, the flavors, fragrances, and smoke-generating agents carried by it evaporate, producing smoke.

[0003] When the smoking segment contains tobacco particles, the cigarette or cartridge is typically filled with tobacco particles. The distal end of the smoking segment is sealed with a sealing film, and the proximal end of the smoking segment is sealed with a perforated plugging piece. The perforated plugging piece is used to block the smoking particles from leaking while allowing smoke to circulate.

[0004] Since the average diameter of smoke particles in particle-heated cigarettes is generally controlled at around 1.5 to 0.8 mm, and the sealing member needs to play a sealing role, the ventilation holes at the front end of the structure must be smaller than 0.8 mm, usually around 0.3 to 0.6 mm. Therefore, the need to process and produce small holes of this size in an array at the front end of the sealing member increases the difficulty and manufacturing costs of design and manufacturing. Although prefabricated molds can be used to improve work efficiency and reduce production costs, it may not necessarily be the optimal implementation solution. On the other hand, in order to increase the smoke volume of the cigarette, even the ventilation holes distributed in an array may be partially blocked by smaller particles, which will affect the overall smoke volume and the consumer's smoking experience.

[0005] In addition, to change or increase the amount of smoke produced by a cigarette, it is generally achieved by drilling holes in the hollow support section or cooling section of the cigarette. However, adding multiple small holes to the diameter of a small-sized cigarette will also increase the difficulty and cost of manufacturing, and at the same time bring difficulty to adjusting the ventilation of the cigarette.

[0006] In order to solve the above problems, the present invention is proposed. Summary of the Invention

[0007] A first aspect of the present invention provides a plugging member with a petal core, wherein the plugging member II comprises: a plugging member body with a hollow interior and a petal core 3;

[0008] The blocking member body comprises: an input hole 21 and an output hole 11, the input hole 21 and the output hole 11 are used to realize the input and output of smoke inside the blocking member body;

[0009] The petal core 3 includes a seal 31 , and the seal 31 is accommodated in the input hole 21 . There is a gap between the outer wall of the seal 31 and the inner wall of the input hole 21 , which serves as an air flow channel.

[0010] The number of the sealing head 31 and the input hole 21 can be one or more.

[0011] Preferably, when the number of the sealing head 31 and the input hole 21 is the same, the sealing head 31 and the input hole 21 are located at the center of the bottom of the sealing member body. More preferably, the cross-sections of the sealing head 31, the input hole 21 and the sealing member are all circular, and the three circles are concentric circles.

[0012] Preferably, the sealing head 31 may be of any regular or irregular shape, such as cylindrical, rectangular, trapezoidal, truncated cone, or conical cone.

[0013] The cross section of the input hole 21 can be any regular or irregular shape, and is preferably circular.

[0014] Preferably, the blocking member body comprises: a cup-shaped front blocking member 2 and a cup-shaped rear blocking member 1;

[0015] The cup bottom of the cup-shaped front blocking member 2 has an input hole 21;

[0016] The cup-shaped rear blocking member 1 has an output hole 11 at the bottom of the cup;

[0017] The cup-shaped front blocking member 2 and the cup-shaped rear blocking member 1 have opposing cup openings and are detachably connected, forming a hollow cavity 6 inside the blocking member II.

[0018] Preferably, the petal core 3 includes a plurality of cross-arranged ribs 32 , and the head 31 is arranged at the end of each rib 32 .

[0019] Of course, the sealing head 31 may not be provided at the end of each rib 32 .

[0020] Of course, the ribs 32 may not be cross-shaped.

[0021] Preferably, the petal core 3 also includes a plurality of ribs 32 , and the plurality of ribs 32 and the plurality of heads 31 are connected at intervals to form a circle or polygon, each rib 32 is connected to a head 31 at both ends, and each head 31 is also connected to two ribs 32 .

[0022] Preferably, a rib accommodating groove 23 corresponding to the shape of the rib plate 32 is provided on the bottom of the cup-shaped front plug 2, and the width of the rib accommodating groove 23 is the same as that of the rib plate 32. The rib plate 32 is in the shape of a cuboid or an arc-shaped ring.

[0023] Preferably, the magnetic connection, snap connection, threaded connection, bonding or interference fit is adopted between the petal core 3 and the cup-shaped front plug 2. The petal core 3 is arranged at the far lip end of the cup-shaped front plug 2.

[0024] Preferably, a positioning core 33 is arranged at the intersection of several cross-arranged rib plates 32 of the petal core 3, a front positioning hole 22 is arranged at the center of the bottom of the cup-shaped front plug 2, and the positioning core 33 and the front positioning hole 22 are in interference fit to realize the detachable connection between the petal core 3 and the cup-shaped front plug 2.

[0025] Preferably, the positioning core 33 has a chamfer to facilitate insertion into the front positioning hole 22.

[0026] Preferably, the shape of the rib plate 32 of the petal core 3 is centrosymmetric, and head seals 31 are arranged at both ends of each rib plate 32.

[0027] Preferably, the shape of the rib plate 32 of the petal core 3 is "rice" shaped.

[0028] Preferably, a transverse partition 4 with a through hole 41 is arranged in the hollow cavity 6 of the plug II.

[0029] Preferably, the petal core 3 is also arranged at the near lip end of the cup-shaped rear plug 1, and the head seal 31 is accommodated in the output hole 11, and a gap exists between the outer wall of the head seal 31 and the inner wall of the output hole 11 as an air flow channel.

[0030] Preferably, a central transverse partition column 5 is arranged in the hollow cavity 6 of the plug II, a transverse partition is arranged in the middle of the central transverse partition column 5, a through hole 51 is arranged on the transverse partition, and the central transverse partition column 5 is detachably connected to the cup-shaped front plug 2 and the cup-shaped rear plug 1 through the side wall.

[0031] Of course, a partition with two side walls can also be arranged in the hollow cavity 6 of the plug II, the transverse partition has a through hole, and the two side walls of the partition are detachably connected to the cup-shaped front plug 2 and the cup-shaped rear plug 1.

[0032] Preferably, the major-minor diameter ratio of the above-mentioned plug II is greater than 1, so as to prevent the plug II from tipping and jamming when being inserted into the empty tube of the cigarette.

[0033] In order to achieve better cooling and blocking effects of the blocking member II in granular cigarettes, it is preferable to increase the aspect ratio of the blocking member II. For example, if the aspect ratio of the blocking member II is greater than 1.5, the effect will be better.

[0034] Preferably, a ventilation hole is provided on the side wall of the blocking member II, and a ventilation hole connected to the ventilation hole is also provided on the outer wall of the cigarette cartridge or cigarette, so that external air can flow into the blocking member II.

[0035] Preferably, the connection between the cup bottom and the cup wall of the cup-shaped front blocking member 2 is provided with a chamfer or an arc transition; and / or the connection between the cup bottom and the cup wall of the cup-shaped rear blocking member 1 is provided with a chamfer or an arc transition.

[0036] The second aspect of the present invention provides use of the sealing member II with a petal core described in the first aspect in a granular cigarette or a granular cigarette cartridge.

[0037] The third aspect of the present invention provides a granular cigarette or cigarette cartridge, which includes the sealing member with a petal core as described in the first aspect.

[0038] The blocking member II is arranged downstream of the particle-type smoke-generating section I to directly block the particle-type smoke-generating section I while allowing smoke to flow through.

[0039] In the present invention, the direction of smoke flow in the granular cigarette or cigarette cartridge is recorded as from upstream to downstream.

[0040] When the above-mentioned blocking member II is used in a cigarette / cigarette cartridge, the cup bottoms of the cup-shaped front blocking member 2 and the cup-shaped rear blocking member 1 are both sideways, and the end of the blocking member II, the cup-shaped front blocking member 2 or the cup-shaped rear blocking member 1 close to the user's lips is the "near-lip end", and the end away from the user's lips is the "far-lip end".

[0041] The above technical solutions can be freely combined under the premise of no contradiction.

[0042] Compared with the prior art, the present invention has the following beneficial effects:

[0043] 1. The sealing piece II of the present invention has a hollow cavity, and smoke circulation is achieved at both ends through the input hole 21 and the output hole 11. A petal core 3 is provided at the far lip end of the sealing piece II, and the head 31 of the petal core 3 is provided in the input hole 21. The gap between the head 31 and the input hole 21 forms an air flow channel. In this way, the size of the input hole 21 and the output hole 11 can be designed to be relatively large, avoiding the complexity of the processing technology of directly setting small holes as air flow channels. Therefore, the sealing piece II of the present invention greatly reduces the difficulty of processing. In addition, the gap size between the head 31 and the input hole 21 is smaller, which also improves the blocking effect on some fine particles.

[0044] 2. Furthermore, as smoke flows through the sealing member II, its volume, velocity, and pressure change. This pressure differential creates multi-zone micro-flows within the sealing member II, which evens out the heat and pressure differential within the smoke. Furthermore, the large inner surface of the sealing member II cools the passing smoke, further reducing the structural requirements for the cooling section that matches the cigarette or cartridge, for example, allowing the cooling section to be shortened.

[0045] 3. In the preferred technical solution, the blocking member II is additionally provided with a transverse partition 4 or a central transverse partition column 5, which divides the entire blocking member II into two parts, the front cavity 61 and the rear cavity 62, from the middle. The smoke again undergoes a variety of complex microcirculations such as air vortexes and turbulence in the front cavity 61, so that the airflow entering the rear cavity 62 can more fully exchange heat therein. Then, the smoke flows out from the output hole 11 at the bottom of the cup-shaped rear blocking member 1 and is output to the next cavity of the cigarette. When the airflow is output from the output hole 11 to the cooling section III, cooling occurs again from microcirculations such as vortexes and turbulence. Therefore, the blocking member II has at least three cooling functions (the first cooling, the smoke enters the front cavity 61 from the smoking section; the second cooling, the smoke enters the rear cavity 62 from the front cavity 61; the third cooling, the smoke enters the cooling section III from the rear cavity 62).

[0046] 4. In the preferred technical solution, the side wall of the blocking member II is provided with ventilation holes, and the outer wall of the cigarette cartridge or cigarette is also provided with ventilation holes connected to the ventilation holes, so that outside air can enter the blocking member II and cool the smoke in the hollow cavity of the blocking member II.

[0047] 5. In the preferred technical solution, both ends of the blocking member II utilize a symmetrical structure, with the cup-shaped front blocking member 2 and the cup-shaped rear blocking member 1 being identical. Furthermore, a petal core 3 is positioned below the cup-shaped front blocking member 2 and to the side of the cup-shaped rear blocking member 1. This eliminates the need to consider which side of the blocking member II should be "preferentially" oriented toward the smoky particles during assembly or automated delivery. This facilitates automated production, reduces initial investment in molds and other process equipment, and further facilitates automated production, resulting in a more optimized, feasible, and innovative technical solution.

[0048] 6. The blocking member II of the present invention is practical and easy to manufacture and assemble. BRIEF DESCRIPTION OF THE DRAWINGS

[0049] Figure 1 This is a structural diagram of the blocking member II described in Example 1, specifically including a main sectional view, an AA sectional view, and a B-direction view.

[0050] Figure 2 This is a structural diagram of the blocking component II described in Example 2, specifically including a main sectional view, an A-direction view, and a B-direction view.

[0051] Figure 3 This is a structural diagram of the blocking member II described in Example 3, specifically including a main sectional view and an A-direction view.

[0052] Figure 4 This is a schematic structural diagram of the cigarette described in Example 4.

[0053] Figure 5 This is a schematic diagram of the cigarette cartridge structure described in Example 5.

[0054] Figure 6 It is a structural diagram of the sealing component II with a petal core in Example 6, specifically including a main sectional view, an AA sectional view and a B-direction view.

[0055] Figure 7 It is a structural schematic diagram of the sealing component II with a petal core in Example 7, specifically including a main sectional view and an A-direction view.

[0056] Figure 8 It is a rotated sectional view of the BB section of the sealing member II with a petal core according to Example 7.

[0057] Figure 9 It is a granular cigarette containing the blocking member II of Example 7.

[0058] Figure 10 It is a granular cigarette cartridge including the sealing member II of Example 7.

[0059] Description of reference numerals:

[0060] 1. Cup-shaped rear plugging piece, 11. Output hole, 2. Cup-shaped front plugging piece, 21. Input hole, 22. Front positioning hole, 23. Rib plate accommodating groove, 3. Petal core, 31. Head, 32. Rib plate, 33. Positioning core, 4. Partition, 41. Through hole, 5. Central transverse partition, 51. Vent, 52. Outer cylindrical surface, 6. Hollow cavity, 61. Front cavity, 62. Rear cavity, I. Smoking section, II. Blocking piece, III. Cooling section, IV. Filter section. DETAILED DESCRIPTION

[0061] The present invention is described in further detail below with reference to the embodiments.

[0062] Those skilled in the art will understand that the following examples are intended to illustrate the present invention only and should not be construed as limiting the scope of the present invention. Where specific techniques or conditions are not specified in the examples, the techniques or conditions described in the literature in the art or in the product specifications were used. Materials or equipment used without manufacturer identification are commercially available conventional products.

[0063] It will be understood by those skilled in the art that, unless otherwise stated, the singular forms "a", "an", "said" and "the" used herein may also include plural forms. It should be further understood that the term "comprising" used in the specification of the present invention refers to the presence of the described features, integers, steps, operations, elements and / or components, but does not exclude the presence or addition of one or more other features, integers, steps, operations, elements, components and / or groups thereof. It should be understood that when we say that an element is "coupled" to another element, it can be directly coupled to the other element, or there may be intermediate elements. In addition, "coupled" as used herein may include wireless coupling.

[0064] In the description of the present invention, unless otherwise specified, "plurality" means two or more. Terms such as "inner," "upper," and "lower" indicating positions or states are based on those shown in the accompanying drawings and are intended solely to facilitate and simplify the description of the present invention. They do not indicate or imply that the devices or components referred to must have, be constructed, or operate in a specific orientation, and are therefore not to be construed as limiting the present invention.

[0065] In the description of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "provided with" should be understood broadly. For example, they may refer to fixed, detachable, or integral connections; mechanical or electrical connections; and direct or indirect connections through an intermediary. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0066] It will be understood by those skilled in the art that, unless otherwise defined, all terms used herein, including technical and scientific terms, have the same meaning as commonly understood by those skilled in the art in the art to which the present invention pertains. It should also be understood that terms such as those defined in common dictionaries should be understood to have meanings consistent with their meanings in the context of the prior art and, unless defined as such herein, will not be interpreted in an idealized or overly formal sense.

[0067] Example 1

[0068] like Figure 1 As shown, a sealing member II with a petal core is formed by a cup-shaped rear blocking member 1, a cup-shaped front blocking member 2 and a petal core 3.

[0069] The cup-shaped front plugging member 2 is an upright cup-shaped structure with an upward-facing bottom and several circumferentially arranged input holes 21. The cup-shaped rear plugging member 1 is an inverted cup-shaped structure with a downward-facing bottom and a single output hole 11. The cup-shaped front plugging member 2 and the cup-shaped rear plugging member 1 are detachably connected, forming a hollow cavity 6 within the sealing member II.

[0070] The far lip end of the cup-shaped front blocking member 2 (from Figure 1 It can be seen that the petal core 3 is fixedly connected to the bottom of the cup-shaped front blocking member 2. There is a positioning core 33 in the center of the petal core 3 for positioning in the front positioning hole 22 in the center of the cup bottom of the cup-shaped front blocking member 2. The front positioning hole 22 is set in the center of the cup bottom of the annular front blocking member 2. The positioning core 33 and the front positioning hole 22 are connected. Figure 1 The outer contour of the center positioning core 33 overlaps with the outer contour of the center positioning core 33 in an interference fit.

[0071] The petal core 3 also includes four "M"-shaped cross-arranged ribs 32, and the intersection of the ribs 32 is fixedly connected to a positioning core 33. The ends of each rib 32 are respectively connected to two cylindrical heads 31. The front end of the annular front plug 2 is provided with a "M"-shaped groove that cooperates with the rib 32, which is the rib accommodating groove 23. Figure 1 The center rib receiving groove 23 has a thickness a. Four cross-ribs 32 arranged in a "M" shape are placed within the "M" groove. This ensures that, after the petal core 3 is axially positioned in the center by the positioning core 33, each cylindrical head 31 is correctly positioned circumferentially in the center of the air inlet 21. This ensures a balanced annular gap, with a spacing less than the average particle size of the granular smoking material, is formed between the outer wall of the head 31 and the inner wall of the input hole 21. This gap serves as an air flow channel.

[0072] The cup-shaped front plugging member 2 and the cup-shaped rear plugging member 1 are detachably connected through the side walls of their respective cup-shaped structures. Specifically, the upper end of the side wall of the cup-shaped structure of the cup-shaped front plugging member 2 has an extended front cylindrical step. The front cylindrical step forms an annular recess A inside the cup-shaped front plugging member 2. The lower end of the side wall of the cup-shaped structure of the cup-shaped rear plugging member 1 has an extended rear cylindrical step, and the rear cylindrical step forms an annular recess B outside the cup-shaped rear plugging member 1. The front cylindrical step and the rear cylindrical step are transitioned or interference fit through the annular recess A and the annular recess B to achieve the connection between the cup-shaped front plugging member 2 and the cup-shaped rear plugging member 1 as a sealing member II. After connection, the overall length L of the sealing member II is greater than its maximum outer diameter D, so as to prevent the sealing member II from tipping over and getting stuck when it is loaded into the smoke pipe or automatically transmitted, which affects production efficiency.

[0073] When the smoke generated by the heated granular smoking material at the front end of the cigarette enters the hollow cavity 6 through the annular gap between the cylindrical seal 31 and the air inlet 21, the large amount of high-temperature smoke, heated and rapidly passing through the relatively narrow annular gap, slows slightly due to the sudden expansion of the cavity. Simultaneously, in areas not directly opposite the gap, the initial gas velocity is close to zero. When the hot smoke is drawn through the annular gap, the high-speed, high-temperature airflow acts on the low-speed gas, which initially has a velocity of zero. According to Bernoulli's law of air flow, high-speed gas has low pressure, while low-speed gas has high pressure. Therefore, high-pressure gas flows toward low pressure, resulting in work between the high-temperature and low-temperature gases. The high-energy, high-speed, high-temperature gas drives the low-speed, low-temperature gas, generating numerous and complex turbulent flows within the cavity. This allows the passing gas to circulate and reside for a longer period within the relatively closed cavity of the sealing member II of the present invention. This enhances heat exchange between the hot and cold gases, as well as between the incoming hot gas and the pipe wall. Simultaneously, under the negative pressure of the smoker's suction, the cigarette enters the next chamber through the output hole 11 behind the cup-shaped rear blocking member 1. Simultaneously, upon entering the next chamber, the relatively cooled gas flowing through the output hole 11 "does work" on the relatively static gas in the cooling chamber III behind the cigarette blocking member II, initiating the next work-generating and heat-exchange process. Therefore, the blocking member II of the present invention provides a secondary cooling device.

[0074] Example 2

[0075] like Figure 2 The figure shows a sealing member II with a petal core. This differs from Example 1 in that a transverse partition 4, perpendicular to the axis of the sealing member II, is inserted between the cup-shaped front sealing member 2 and the cup-shaped rear sealing member 1. In the center of transverse partition 4, a slightly larger through-hole 41 ensures sufficient total ventilation, dividing the entire sealing member II into a front cavity 61 and a rear cavity 62.

[0076] When the heated high-temperature smoke comes from the cigarette heating chamber, the smoke enters the front cavity 61 through the tiny gap formed between the seal 31 and the input hole 21. The smoke again undergoes a variety of complex microcirculations such as air vortexes and turbulence in the front cavity 61, so that the airflow entering the rear cavity 62 can more fully exchange heat therein. Then, the smoke flows out from the output hole 11 behind the cup-shaped rear plug 1 and is output to the next cavity of the cigarette - the cooling section III. When the airflow is output from the output hole 11 to the cooling section III, cooling occurs again from microcirculations such as vortexes and turbulence. Therefore, the sealing member II of this embodiment is a sealing member II with at least 3 cooling effects.

[0077] Example 3

[0078] like Figure 3As shown, a sealing member II with a petal core. The difference from Example 1 is that the same symmetrical structure is used at both ends. The cup-shaped front sealing member 2 and the cup-shaped rear sealing member 1 are exactly the same. And a petal core 3 is provided below the cup-shaped front sealing member 2 and above the cup-shaped rear sealing member 1. In this way, during assembly, it is not necessary to consider which side of the sealing member II should be "preferentially" oriented toward the smoking particles. This makes it more convenient to use the equipment for automated production, reduces the investment in molds and other process equipment in the early stages of the device's research and development, and is more conducive to automated production. It is a more optimized, feasible, and innovative technical solution. The cup-shaped front sealing member 2 and the cup-shaped rear sealing member 1 are collectively referred to as U-shaped barrier rings below.

[0079] The cup-shaped front plugging member 2 and the cup-shaped rear plugging member 1 are detachably connected via the sidewalls of their respective cup-shaped structures. Specifically, the upper end of the sidewall of the cup-shaped structure of the cup-shaped front plugging member 2 has a front cylindrical step extending therefrom. This front cylindrical step forms an annular recess A within the cup-shaped front plugging member 2. The lower end of the sidewall of the cup-shaped rear plugging member 1 has a rear cylindrical step extending therefrom, forming an annular recess B within the cup-shaped rear plugging member 1.

[0080] A central transverse partition 5 is provided in the hollow cavity of the sealing member II. The central transverse partition 5 is a hollow cylinder with a transverse partition inside. The transverse partition divides the entire sealing member II into two parts, the front cavity 61 and the rear cavity 62, from the middle. There is a vent 51 on the transverse partition. The two ends of the outer cylindrical surface 52 of the central transverse partition 5 are respectively connected with the inner circular surfaces of the open ends of the two U-shaped barrier rings at the middle annular recess A and the annular recess B by interference fit, so that they form a complete sealing member II after being assembled together. While the front cavity 61 and the rear cavity 62 have the same space, the air inlet or outlet formed by multiple sets of heads 31 and the input hole 21 or the output hole 11 will be more complicated than the micro-space airflow circulation formed by a single output or a single input, so that the airflow exchange time in each cavity is longer and more sufficient. Therefore, the processing and manufacturing of this sealing member II is relatively simpler and convenient for automated production. The blocking member II of this embodiment has a three-time cooling function, has a better blocking effect and cooling function, and is more practical.

[0081] Example 4

[0082] like Figure 4 A granular cigarette comprises, from the distal lip end to the proximal lip end, a smoking segment I, a blocking member II, a cooling segment III, and a filtering segment IV, as described in Example 3. The smoking segment I contains granular smoking material, such as tobacco particles. The distal lip end of the smoking segment is sealed with a sealing film.

[0083] Example 5

[0084] like Figure 5A granular cigarette cartridge includes, from the distal lip end to the proximal lip end, a smoking segment I and the blocking member II described in Example 3. The smoking segment I contains granular smoking material, such as tobacco particles. The distal lip end of the smoking segment is sealed by a sealing film.

[0085] Example 6

[0086] like Figure 6 As shown, a plugging member II with a petal core is composed of a cup-shaped rear plugging member 1, a cup-shaped front plugging member 2 and a petal core 3. The front end of the cup-shaped front plugging member 2 is fixedly connected to the petal core 3.

[0087] The difference from Example 1 lies in the specific structure of the petal core 3. The petal core 3 comprises eight spaced-apart ribs 32 and eight cylindrical heads 31. Each rib 32 is connected to a head 31 at each end. Each head 31 is also connected to two ribs 32. The eight ribs 32 and eight heads 31 are connected to form an octagonal perimeter.

[0088] Each cylindrical seal 31 is correctly positioned in the middle of the air inlet 21 to achieve a balance: an annular gap with a spacing smaller than the average particle size of the granular smoking material is formed between the outer wall of the seal 31 and the inner wall of the air inlet 21. The annular gap serves as an air flow channel.

[0089] Grooves corresponding to the ribs 32 are provided on the bottom of the front blocking member 2 so that the eight ribs 32 can be positioned and fixedly connected, thereby ensuring a breathable gap.

[0090] Example 7

[0091] like Figure 7 and Figure 8 As shown, a plugging member II having a petal core is shown. The difference from Example 3 is that the specific structure of the petal core 3 is different. The petal core 3 comprises eight spaced-apart ribs 32 and eight cylindrical heads 31. Each rib 32 is connected to a head 31 at each end. Each head 31 is also connected to two ribs 32. The eight ribs 32 and the eight heads 31 are connected to each other to form a perimeter portion similar to an octagon.

[0092] A rib plate receiving groove 23 corresponding to the rib plate 32 is provided on the bottom of the cup of the front blocking member 2 so that the eight rib plates 32 can be positioned and fixedly connected, thereby ensuring a breathable gap. Figure 8 It can be seen that the depth of the rib plate receiving groove 23 is a.

[0093] Figure 9This is a granular cigarette containing the blocking member II of Example 7. From the distal lip end to the proximal lip end, the cigarette comprises, in order, a smoking segment I, the blocking member II, cooling segment III, and filtering segment IV described in Example 3. Smoking segment I contains granular smoking material, such as tobacco particles. The distal lip end of smoking segment I is sealed with a sealing film.

[0094] Figure 10 This is a granular cigarette cartridge that includes the sealing member II of Example 7. The cartridge includes, from the distal lip end to the proximal lip end, a smoking segment I and the sealing member II described in Example 3. Smoking segment I contains granular smoking material, such as tobacco particles. The distal lip end of smoking segment I is sealed with a sealing film.

Claims

1. A plugging piece with a petal core, characterized in that: The blocking member (II) comprises: a blocking member body with a hollow interior and a petal core (3); Wherein, the blocking member body comprises: an input hole (21) and an output hole (11); The petal core (3) includes a sealing head (31), and the sealing head (31) is accommodated in the input hole (21), and a gap serving as an air flow channel exists between the outer wall of the sealing head (31) and the inner wall of the input hole (21); The blocking member body comprises: a cup-shaped front blocking member (2) and a cup-shaped rear blocking member (1); Wherein, the cup bottom of the cup-shaped front blocking member (2) has an input hole (21); The cup-shaped rear blocking member (1) has an output hole (11) at the bottom of the cup; The cup-shaped front blocking member (2) and the cup-shaped rear blocking member (1) have opposing cup openings and are detachably connected, forming a hollow cavity (6) inside the blocking member (II); The petal core (3) comprises a plurality of cross-arranged ribs (32), and the sealing head (31) is arranged at the end of each rib (32); A positioning core (33) is provided at the intersection of a plurality of cross-arranged ribs (32) of the petal core (3), a front positioning hole (22) is provided at the center of the cup bottom of the cup-shaped front blocking member (2), and the positioning core (33) and the front positioning hole (22) are interference-fitted to achieve a detachable connection between the petal core (3) and the cup-shaped front blocking member (2); The ribs (32) of the petal core (3) are centrally symmetrical in shape, and both ends of each rib (32) are provided with sealing heads (31).

2. The sealing member with a petal core according to claim 1, characterized in that: A plurality of ribs (32) and a plurality of heads (31) are connected at intervals to form a circle or a polygon. Both ends of each rib (32) are connected to a head (31), and each head (31) is also connected to two ribs (32).

3. The plugging piece with a petal core according to claim 1, characterized in that: A rib plate receiving groove (23) corresponding to the shape of the rib plate (32) is provided on the cup bottom of the cup-shaped front blocking member (2), and the width of the rib plate receiving groove (23) is the same as the width of the rib plate (32).

4. The sealing member with a petal core according to claim 1, characterized in that: A transverse partition (4) is provided in the hollow cavity (6) of the blocking member (II), and a through hole (41) is provided on the transverse partition (4).

5. The plugging piece with a petal core according to claim 1, characterized in that: The petal core (3) is also provided at the proximal lip end of the cup-shaped rear plug (1), and the sealing head (31) is accommodated in the output hole (11), with a gap between the outer wall of the sealing head (31) and the inner wall of the output hole (11) serving as an air flow channel.

6. The plugging member with a petal core according to claim 1, characterized in that: A central transverse partition (5) is provided in the hollow cavity (6) of the blocking member (II). The central transverse partition (5) is a hollow structure. A transverse partition is provided in the hollow structure. The transverse partition has a vent hole (51). The central transverse partition (5) is detachably connected to the cup-shaped front blocking member (2) and the cup-shaped rear blocking member (1) through a side wall.

7. The plugging piece with a petal core according to claim 1, characterized in that: The connection between the cup bottom and the cup wall of the cup-shaped front blocking member (2) is provided with a chamfer or an arc transition; and / or the connection between the cup bottom and the cup wall of the cup-shaped rear blocking member (1) is provided with a chamfer or an arc transition.

8. Use of the sealing member (II) with a petal core according to any one of claims 1 to 7 in granular cigarettes or granular cigarette cartridges.

9. A granular cigarette or cigarette cartridge, characterized in that: The sealing member comprises the sealing member with a petal core according to any one of claims 1 to 7.

Images