A flow-blocking sealing component and a cartridge or cigarette containing the component.

Abstract

This invention belongs to the field of heated cigarettes, specifically relating to a baffle sealing component and a cigarette cartridge or cigarette containing the same. The baffle sealing component (II) comprises: a cup-shaped front plug (2) and a cup-shaped rear plug (1); the cup-shaped front plug (2) has an inlet hole (21) at its bottom; the cup-shaped rear plug (1) has an outlet hole (11) at its bottom; the cup-shaped front plug (2) and the cup-shaped rear plug (1) are opposite each other and detachably connected; a coaxial core (3) is also provided within the hollow cavity of the sealing component. The baffle sealing component of this invention has a hollow cavity, with smoke flowing through the inlet hole and outlet hole at both ends. The coaxial core within the hollow cavity of the baffle sealing component requires multiple axial and radial movements of the smoke as it passes through the coaxial core, thus achieving smoke baffle movement. During this process, the residence time of the smoke within the entire baffle sealing component is extended, resulting in a cooling effect on the smoke.

Description

Technical Field

[0001] This invention belongs to the field of heated cigarettes, specifically relating to a flow-blocking sealing component and a cigarette cartridge or cigarette containing the component. Background Technology

[0002] As living standards improve, people are paying more and more attention to their health, and the health risks associated with smoking have been a major concern in recent years. To meet changing consumer demands, major domestic and international companies have developed various heated tobacco products as alternatives to traditional cigarettes.

[0003] Heated cigarettes heat the tobacco's smoking section to produce smoke, resulting in a more palatable flavor. Currently, commercially available heated cigarettes mainly consist of a smoking section, a hollow support section, a cooling section, and a filter. The tobacco in the smoking section can be in the form of reconstituted tobacco sheets, shredded tobacco, granular tobacco, or blocky tobacco, either ordered or randomly filled. When the tobacco in the smoking section is heated, the flavorings and smoke-generating agents loaded on it evaporate, producing smoke.

[0004] Existing technology typically involves filling the smoke-generating segment of a cigarette stick or cartridge with tobacco particles. For example, the distal end of the smoke-generating segment is sealed with a sealing film, and the other end is sealed with a perforated plug. The perforated plug in the cigarette stick is generally a cylindrical segment with an axial through hole. This setup presents some problems: due to the addition of the perforated plug, the axial length of the cigarette stick becomes longer.

[0005] To address the above problems, this invention is proposed. Summary of the Invention

[0006] The first aspect of the present invention provides a flow-blocking device, the flow-blocking device II comprising: a cup-shaped front plug 2 and a cup-shaped rear plug 1;

[0007] The cup-shaped front plug 2 has an input hole 21 at its bottom;

[0008] The cup-shaped rear plug 1 has an output hole 11 at the bottom;

[0009] The cup-shaped front plug 2 and the cup-shaped rear plug 1 have opposite cup openings and are detachably connected, forming a hollow cavity inside the flow-blocking plug II;

[0010] The hollow cavity of the sealing component is further provided with a coaxial core 3. The coaxial core 3 includes a hollow inner cylinder 32 and a hollow outer cylinder 34 arranged coaxially. The lower end face of the coaxial core 3 has an external through hole 31. The external through hole 31 is radially positioned between the side walls of the hollow inner cylinder 32 and the side walls of the hollow outer cylinder 34. The coaxial core 3 is located in the middle of the hollow cavity of the sealing component so that the external through hole 31 connects the annular space 35 between the side walls of the hollow inner cylinder 32 and the side walls of the hollow outer cylinder 34 with the interior of the cup-shaped front plug 2. The side wall of the hollow inner cylinder 32 is provided with an internal through hole 33 to connect the annular space 35 between the side walls of the hollow inner cylinder 32 and the side walls of the hollow outer cylinder 34 with the space inside the hollow inner cylinder 32. The interior of the hollow inner cylinder 32 is connected to the output hole 11.

[0011] Preferably, the annular space 35 between the sidewall of the hollow inner cylinder 32 and the sidewall of the hollow outer cylinder 34 is connected to the interior of the cup-shaped front plug 2 only through the external through hole 31.

[0012] Preferably, the upper end face of the coaxial core 3 is open, or the upper end face of the hollow inner cylinder 32 has a channel communicating with the output hole 11.

[0013] Preferably, the apertures, from smallest to largest, are: inlet 21, outer through hole 31, inner through hole 33, and outlet 11, to achieve unidirectional airflow. The aperture of inlet 21 is smaller than the average particle size of the particulate smoke material to prevent the particulate smoke material from clogging or entering inlet 21 or from entering the baffle sealing member II.

[0014] Preferably, the cup-shaped front plug 2 and the coaxial core 3 are detachably connected. The cup-shaped rear plug 1 and the coaxial core 3 are also detachably connected.

[0015] Preferably, the detachable connection is a snap-fit, interference fit, or threaded connection. Specifically, the upper end of the sidewall of the cup-shaped structure of the cup-shaped front plug 2 has an extended front cylindrical step 22. The front cylindrical step 22 forms an annular recess A inside the cup-shaped front plug 2. The lower end of the sidewall of the cup-shaped structure of the cup-shaped rear plug 1 has an extended rear cylindrical step 12, which forms an annular recess B inside the cup-shaped rear plug 1. The widths of the annular recess B and the annular recess A are equal. The sidewall of the hollow outer cylinder 34 of the coaxial core 3 is inserted into the overall annular space formed by the annular recess A and the annular recess B to achieve axial fixation of the coaxial core 3 and the baffle sealing component, and simultaneously to fix the cup-shaped front plug 2 and the cup-shaped rear plug 1.

[0016] Preferably, the axial length of the hollow inner cylinder 32 is greater than the axial length of the hollow outer cylinder 34, and the axial length of the hollow inner cylinder 32 is one-quarter to three-quarters of the axial length of the flow-blocking component II.

[0017] Preferably, there are several input holes 21 arranged in an array on the bottom of the cup-shaped front plug 2; and there are several external through holes 31 arranged in an array on the lower end face of the coaxial core 3.

[0018] Preferably, the axial length of the flow-blocking component II is greater than its radial width.

[0019] Preferably, the maximum axial length of the coaxial core 3 is greater than its radial width. When the coaxial core 3 is cylindrical, the radial width is the same as its diameter.

[0020] Preferably, the hollow cavity of the baffle sealing component II is provided with fragrance storage cotton.

[0021] Preferably, the side wall of the baffle sealing component II is provided with a vent hole, and the outer wall of the cigarette cartridge or cigarette stick is also provided with a vent hole communicating with the vent hole, so that outside air can enter the sealing device to cool the smoke in the cavity of the sealing device.

[0022] Preferably, the connection between the bottom of the cup-shaped front plug 2 and the cup wall is a chamfer or rounded transition of 10 to 60 degrees; the connection between the bottom of the cup-shaped rear plug 2 and the cup wall is a chamfer or rounded transition of 10 to 60 degrees.

[0023] The second aspect of the present invention provides a granular tobacco cartridge, wherein the tobacco cartridge comprises, from the distal lip end to the proximal lip end, a smoke-generating section and a flow-blocking and sealing member II as described in any one of the first aspects, wherein the cup-shaped front plug 2 is disposed close to the smoke-generating section and the cup-shaped rear plug 1 is disposed away from the smoke-generating section.

[0024] The third aspect of the present invention provides a granular cigarette, wherein the cigarette comprises, from the distal lip end to the proximal lip end, a smoke-generating section and a flow-blocking and sealing member II as described in any one of the first aspects, a hollow cooling section, and a filter section, wherein the cup-shaped front plug 2 is disposed close to the smoke-generating section and the cup-shaped rear plug 1 is disposed away from the smoke-generating section.

[0025] The fourth aspect of the present invention provides the use of the sealing member according to any one of the first aspects in the granular cigarette according to the third aspect, wherein the sealing member can not only block the smoke-generating section, but also reduce the length of the hollow cooling section.

[0026] The above technical solutions can be freely combined, provided they do not contradict each other.

[0027] Compared with the prior art, the present invention has the following beneficial effects:

[0028] The baffle sealing component II of the present invention has a hollow cavity, and flue gas can be circulated through the input hole 21 and the output hole 11 at both ends.

[0029] 1. The baffle sealing element II of the present invention has a hollow cavity, with flue gas flowing through the inlet 21 and outlet 11 at both ends. The flue gas, entering the baffle sealing element II, flows in at high speed through the inlet 21, causing the initially relatively still surrounding gas to generate various complex micro-circulations such as eddies and turbulence. This allows the airflow in the sealing device II to undergo more thorough heat exchange, achieving a new balance of heat, pressure, and flow rate. The flue gas is then output from the outlet 11, thereby reducing heat and balancing pressure and flow rate within a certain range.

[0030] In addition, the large inner surface of the baffle seal can cool the flowing smoke to a certain extent, thereby further reducing the structural requirements of the hollow cooling section matched with the cigarette stick or cartridge. For example, the length of the hollow cooling section can be shortened.

[0031] In particular, a coaxial core 3 is installed inside the hollow cavity of the baffle sealing component. When the flue gas passes through the coaxial core 3, it needs to move axially and radially multiple times, thus realizing the flue gas baffle motion. In this process, the residence time of the flue gas in the entire baffle sealing component II is extended, which has a cooling effect on the flue gas.

[0032] 2. The coaxial core 3 is basically cylindrical, which makes it easy to install into the baffle and sealing component and prevents displacement.

[0033] 3. In the preferred technical solution, the baffle sealing component can be easily filled with fragrance cotton 4. The fragrance cotton 4 not only enhances the aroma of the smoke, but the fragrance substances in the fragrance cotton 4 also absorb the heat of the smoke and volatilize, thus cooling the smoke and increasing the user's comfort when smoking the smoke.

[0034] 4. In a preferred embodiment, the side wall of the baffle sealing component is provided with a vent hole, and the outer wall of the cigarette cartridge or cigarette stick is also provided with a vent hole communicating with the vent hole, so that outside air can enter the baffle sealing component to cool the smoke in the hollow cavity of the baffle sealing component.

[0035] 5. The flow-blocking component of the present invention is simple, practical, and easy to manufacture. Attached Figure Description

[0036] Figure 1 The diagram shows the structure of the flow-blocking device described in Example 1, specifically including the main sectional view and AA, BB, and CC sectional views.

[0037] Figure 2 This is a schematic diagram of the cigarette structure including the flow-blocking component as described in Example 2.

[0038] Figure 3 This is a schematic diagram of the smoke cartridge containing a flow-blocking component as described in Example 3.

[0039] Figure 4 The diagram shows the structure of the flow-blocking component described in Example 4, specifically including the main sectional view and AA, BB, and CC sectional views.

[0040] Explanation of reference numerals in the attached figures:

[0041] 1. Cup-shaped rear plug; 11. Output hole; 12. Rear cylindrical step; 2. Cup-shaped front plug; 21. Input hole; 22. Front cylindrical step; 3. Coaxial core; 31. External through hole; 32. Hollow inner cylinder; 33. Internal through hole; 34. Hollow outer cylinder; 35. Annular space; 4. Fragrance storage cotton; I. Smoke generation section; II. Baffle sealing component; III. Hollow cooling section; IV. Filter section. Detailed Implementation

[0042] The present invention will now be described in further detail with reference to the embodiments.

[0043] Those skilled in the art will understand that the following embodiments are for illustrative purposes only and should not be construed as limiting the scope of the invention. Where specific techniques or conditions are not specified in the embodiments, they are performed in accordance with the techniques or conditions described in the literature in the field or according to the product instructions. Materials or equipment whose manufacturers are not specified are all conventional products that can be obtained by purchase.

[0044] Those skilled in the art will understand that, unless specifically stated otherwise, the singular forms “a,” “an,” “the,” and “the” used herein may also include the plural forms. It should be further understood that the term “comprising” as used in this specification means the presence of the stated 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 an element is “coupled” to another element, it can be directly coupled to the other element, or there may be intermediate elements. Furthermore, the term “coupled” as used herein can include wireless coupling.

[0045] In the description of this invention, unless otherwise stated, "a plurality of" means two or more. The terms "inner," "upper," "lower," etc., indicate the orientation or state relationship based on the orientation or state relationship shown in the drawings, and are only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the invention.

[0046] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "connected," and "equipped with" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art will understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0047] 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 one of ordinary skill in the art to which this invention pertains. It should also be understood that terms such as those defined in general dictionaries should be understood to have the meaning consistent with their meaning in the context of the prior art, and should not be interpreted in an idealized or overly formal sense unless defined as herein.

[0048] Example 1

[0049] like Figure 1 A flow-blocking component II, wherein the flow-blocking component II is a hollow cylinder having an upper surface and a lower bottom surface, comprising: a cup-shaped front plug 2 and a cup-shaped rear plug 1;

[0050] The cup-shaped front plug 2 is an upright cup-shaped structure with the bottom facing upwards and having several input holes 21 at the bottom;

[0051] The inverted plug 1 is an inverted cup-shaped structure with the bottom facing down and an output hole 11 at the bottom;

[0052] The cup-shaped front plug 2 and the cup-shaped rear plug 1 are detachably connected, forming a hollow cavity inside the flow-blocking plug II.

[0053] The cup-shaped front plug 2 and the cup-shaped rear plug 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 plug 2 has an extending front cylindrical step 22. The front cylindrical step 22 forms an annular recess inside the cup-shaped front plug 2.

[0054] The lower end of the side wall of the cup-shaped rear plug 1 has an extended rear cylindrical step 12, which forms an annular recess on the outside of the cup-shaped rear plug 1.

[0055] The front cylindrical step 22 and the cup-shaped rear plug 1 are transitionally or interference-fitted to connect the cup-shaped front plug 2 and the cup-shaped rear plug 1 to form a flow-blocking sealing component II. After connection, the overall length L of the flow-blocking sealing component II is greater than its maximum outer diameter D, so as to prevent the flow-blocking sealing component II from tipping over or getting stuck when installed in the flue, which would affect production efficiency.

[0056] The bottom of the cup-shaped pre-plug 2 is the lower surface of the baffle sealing component II. Inlet holes 21, with a pore size smaller than the average particle size of the particulate smoke-generating material, are evenly distributed at the bottom of the cup-shaped pre-plug 2. The distribution of the inlet holes 21 can be circular, square, or other evenly distributed array forms, based on the principle of convenient passage and natural permeation of the heated flue gas. In Figure 1, the inlet holes 21 are distributed in a circular ring pattern.

[0057] The bottom of the cup-shaped back plug 1 is the upper surface of the baffle block II. A relatively large output hole 11 is formed at the bottom of the cup-shaped back plug 1. The diameter of the output hole 11 is larger than the diameter of the input hole 21.

[0058] The hollow cavity of the sealing component also contains a coaxial core 3, which is composed of a hollow inner cylinder 32 and a hollow outer cylinder 34 arranged coaxially. The upper end face of the coaxial core 3 is open, and the lower end face has an external through hole 31. The external through hole 31 is radially positioned between the side walls of the hollow inner cylinder 32 and the hollow outer cylinder 34. The coaxial core 3 is located in the middle of the hollow cavity of the sealing component so that the external through hole 31 connects the annular space 35 between the side walls of the hollow inner cylinder 32 and the hollow outer cylinder 34 with the interior of the cup-shaped front plug 2. The side wall of the hollow inner cylinder 32 is provided with an internal through hole 33 to connect the annular space 35 between the side walls of the hollow inner cylinder 32 and the hollow outer cylinder 34 with the interior space of the hollow inner cylinder 32. The interior of the hollow inner cylinder 32 communicates with the output hole 11.

[0059] Specifically, the annular space 35 between the sidewall of the hollow inner cylinder 32 and the sidewall of the hollow outer cylinder 34 is connected to the interior of the cup-shaped front plug 2 only through the external through hole 31.

[0060] When the aforementioned baffle seal II is in operation, smoke enters through the inlet 21 of the cup-shaped front plug 2. Under the smoker's suction pressure, the smoke enters the annular space 35 between the side walls of the hollow inner cylinder 32 and the hollow outer cylinder 34 through the outer through-hole 31. Then, the smoke enters the space inside the hollow inner cylinder 32 through the inner through-hole 33 and is output from the outlet 11 to the next cavity of the cigarette or cartridge. During this process, the smoke undergoes multiple axial and radial movements within the entire baffle seal II, achieving baffle motion. This process prolongs the residence time of the smoke within the entire baffle seal II, thus cooling the smoke.

[0061] Furthermore, during the aforementioned process, as the flue gas flows within the baffle seal II, it passes through multiple small holes and multiple spaces with varying volumes. These volume changes cause pressure changes, resulting in a pressure differential. Under the influence of this pressure differential, multi-regional micro-flows are generated within the baffle seal II, homogenizing heat and pressure differences. Additionally, this design increases the degree of flue gas mixing, homogenizes flue gas temperature and smoke concentration, and enhances the user's comfort when inhaling the flue gas.

[0062] Example 2

[0063] like Figure 2 A particulate cigarette, comprising, from its distal lip to its proximal lip, a smoke-generating section I and, as described in Example 1, a baffle and sealing element II, a hollow cooling section III, and a filter section IV. The cup-shaped front plug 2 is positioned close to the smoke-generating section I, and the cup-shaped rear plug 1 is positioned away from the smoke-generating section I. The smoke-generating section I contains particulate smoke-generating material, such as tobacco particles. The particle size of the particulate smoke-generating material is smaller than the aperture of the inlet hole 21 to prevent leakage of the particulate smoke-generating material from the inlet hole 21. The distal lip of the particulate smoke-generating section is sealed with a sealing film or other form of sealing.

[0064] Because the baffle block II has a cooling effect, when the high-temperature gas is subjected to the negative pressure transmitted by the smoker, it enters the next independent dedicated hollow cooling section III from the baffle block II. The smoke discharged from the output hole 11 is cooled again. Therefore, the granular cigarette in this embodiment has a secondary cooling function.

[0065] Example 3

[0066] like Figure 3 This embodiment provides a granular e-cigarette cartridge. The baffle sealing element II from Embodiment 1 is assembled with the smoke-generating section to form a granular e-cigarette cartridge. The distal lip end of the granular smoke-generating section is sealed with a sealing film, and the proximal lip end of the granular smoke-generating section is sealed with the aforementioned baffle sealing element II.

[0067] Example 4

[0068] like Figure 4 This embodiment is an improvement on the flow-blocking component II of embodiment 1: fragrance storage cotton 4 is added inside the hollow inner cylinder 32 of the flow-blocking component II.

[0069] When the high-temperature smoke passes through the pores of the fragrance storage cotton 4, it carries away the aroma substances stored in those pores. Simultaneously, it utilizes the residual heat in the cigarette's smoke-generating chamber I to further heat the aroma substances. At the same time, the aroma substances within the fragrance storage cotton 4 absorb the heat from the smoke, thus cooling it and increasing the user's comfort when inhaling.

Claims

1. A flow-blocking and sealing component, characterized in that, The flow-blocking component (II) comprises: a cup-shaped front plug (2) and a cup-shaped rear plug (1); The cup-shaped front plug (2) has an input hole (21) at the bottom; The cup-shaped rear plug (1) has an output hole (11) at the bottom; The cup-shaped front plug (2) and the cup-shaped rear plug (1) are opposite each other and detachably connected, forming a hollow cavity inside the baffle seal (II); The sealing component also has a coaxial core (3) inside its hollow cavity. The coaxial core (3) includes a hollow inner cylinder (32) and a hollow outer cylinder (34) arranged coaxially. The lower end face of the coaxial core (3) has an external through hole (31). The external through hole (31) is radially positioned between the sidewalls of the hollow inner cylinder (32) and the sidewalls of the hollow outer cylinder (34). The coaxial core (3) is located in the middle of the hollow cavity of the sealing component so that the external through hole (31) can... The annular space (35) between the sidewall of the hollow inner cylinder (32) and the sidewall of the hollow outer cylinder (34) is connected to the interior of the cup-shaped front plug (2). The sidewall of the hollow inner cylinder (32) is provided with an inner through hole (33) to connect the annular space (35) between the sidewall of the hollow inner cylinder (32) and the sidewall of the hollow outer cylinder (34) with the interior space of the hollow inner cylinder (32). The interior of the hollow inner cylinder (32) is connected to the output hole (11). From smallest to largest aperture, they are: input hole (21), external through hole (31), internal through hole (33), and output hole (11); The axial height of the hollow inner cylinder (32) is greater than the axial height of the hollow outer cylinder (34), and the axial height of the hollow inner cylinder (32) is one-quarter to three-quarters of the axial height of the flow-blocking component (II).

2. The flow-blocking and sealing component according to claim 1, characterized in that, The cup-shaped front plug (2) and the coaxial core (3) are detachably connected, and the cup-shaped rear plug (1) and the coaxial core (3) are detachably connected.

3. The flow-blocking and sealing component according to claim 1, characterized in that, The detachable connection is a snap-fit, interference fit, or threaded connection.

4. The flow-blocking and sealing component according to claim 1, characterized in that, The number of input holes (21) is several, and they are arranged in an array on the bottom of the cup-shaped front plug (2); the number of external through holes (31) is several, and they are arranged in an array on the lower end face of the coaxial core (3).

5. The flow-blocking and sealing component according to any one of claims 1 to 4, characterized in that, The axial length of the sealing element is greater than its radial width.

6. The flow-blocking and sealing component according to any one of claims 1 to 4, characterized in that, The maximum axial length of the coaxial core (3) is greater than its radial width.

7. The flow-blocking and sealing component according to any one of claims 1 to 4, characterized in that, The sealing component has a fragrance-storing cotton placed inside its hollow cavity.

8. The flow-blocking and sealing component according to any one of claims 1 to 4, characterized in that, The connection between the bottom of the cup and the wall of the cup-shaped front plug (2) is a chamfer of 10 to 60 degrees or a rounded transition. The connection between the bottom of the cup and the wall of the cup-shaped back plug (1) is a chamfer or rounded transition of 10 to 60 degrees.

9. A granular e-cigarette cartridge, characterized in that, The cartridge includes a smoke-generating section and a flow-blocking and sealing member (II) as described in any one of claims 1 to 4, from the distal lip end to the proximal lip end. The cup-shaped front plug (2) is disposed close to the smoke-generating section, and the cup-shaped rear plug (1) is disposed away from the smoke-generating section.

10. A granular cigarette, characterized in that, The cigarette includes, from the distal lip end to the proximal lip end, a smoke-generating section and, according to any one of claims 1 to 4, a baffle (II), a hollow cooling section, and a filter section. The cup-shaped front plug (2) is disposed close to the smoke-generating section, and the cup-shaped rear plug (1) is disposed away from the smoke-generating section.

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