CN220859428U - Hollow filter stick and heating cigarette - Google Patents
Hollow filter stick and heating cigarette Download PDFInfo
- Publication number
- CN220859428U CN220859428U CN202322126789.2U CN202322126789U CN220859428U CN 220859428 U CN220859428 U CN 220859428U CN 202322126789 U CN202322126789 U CN 202322126789U CN 220859428 U CN220859428 U CN 220859428U
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- cavity
- filter rod
- diameter
- small
- hollow
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- 235000019504 cigarettes Nutrition 0.000 title claims abstract description 19
- 238000010438 heat treatment Methods 0.000 title abstract description 17
- 239000000779 smoke Substances 0.000 claims abstract description 52
- 230000003247 decreasing effect Effects 0.000 claims abstract description 4
- 238000004891 communication Methods 0.000 claims description 18
- 239000007787 solid Substances 0.000 claims description 5
- 239000000463 material Substances 0.000 claims description 4
- 230000007704 transition Effects 0.000 claims description 4
- QTBSBXVTEAMEQO-UHFFFAOYSA-M Acetate Chemical compound CC([O-])=O QTBSBXVTEAMEQO-UHFFFAOYSA-M 0.000 claims description 3
- 229920001661 Chitosan Polymers 0.000 claims description 3
- 244000068988 Glycine max Species 0.000 claims description 3
- 235000010469 Glycine max Nutrition 0.000 claims description 3
- 239000004743 Polypropylene Substances 0.000 claims description 3
- 229920000747 poly(lactic acid) Polymers 0.000 claims description 3
- 239000004626 polylactic acid Substances 0.000 claims description 3
- -1 polypropylene Polymers 0.000 claims description 3
- 229920001155 polypropylene Polymers 0.000 claims description 3
- 238000001816 cooling Methods 0.000 abstract description 13
- 230000000694 effects Effects 0.000 abstract description 11
- 238000001914 filtration Methods 0.000 abstract description 6
- 238000004519 manufacturing process Methods 0.000 abstract description 6
- 239000000126 substance Substances 0.000 abstract description 6
- 230000008859 change Effects 0.000 abstract description 4
- 239000012530 fluid Substances 0.000 abstract description 4
- 230000000391 smoking effect Effects 0.000 abstract description 4
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 abstract 1
- 208000002925 dental caries Diseases 0.000 abstract 1
- 239000003546 flue gas Substances 0.000 abstract 1
- 238000003754 machining Methods 0.000 abstract 1
- 238000000034 method Methods 0.000 abstract 1
- 239000000443 aerosol Substances 0.000 description 3
- 230000002349 favourable effect Effects 0.000 description 3
- 241000208125 Nicotiana Species 0.000 description 2
- 235000002637 Nicotiana tabacum Nutrition 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- 206010006784 Burning sensation Diseases 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000013329 compounding Methods 0.000 description 1
- 230000007794 irritation Effects 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
Landscapes
- Cigarettes, Filters, And Manufacturing Of Filters (AREA)
Abstract
The application discloses a hollow filter stick and a heating cigarette, which comprise a filter stick body, wherein the outer part of the filter stick body is cylindrical, and at least two cavities are arranged in the middle of the filter stick body along the axial direction at intervals; the diameter of the cavity is gradually increased from small to large along the axial direction, and then gradually decreased from large to small, and the cavity is in a shape with large middle and small two ends; or the diameter of the cavity gradually increases from small to large along the axial direction, and the end of the cavity with smaller diameter is close to the smoke generating section. This hollow filter rod, the interval is equipped with two at least cavitys in its filter rod body, the diameter of cavity is along axial variation, when smog passes through from the filter rod body, the inside structure of filter rod body can lead to smog velocity of flow to change, the laminar flow is forced from the laminar flow to the state of flue gas fluid, heat conduction efficiency has been improved, and smog inflation is exothermic, cooling effect has been strengthened, the interval between the cavity helps filtering harmful substance in the smog simultaneously, smog entry temperature is moderate, the smoking is experienced well, this hollow filter rod has integrated into one piece, the process is simple, production machining efficiency is high.
Description
Technical Field
The application relates to the technical field of heating cigarette production, in particular to a hollow filter stick and a heating cigarette.
Background
The smoke generated by heating the cigarettes is aerosol particles, the size and the components of the aerosol particles are directly influenced by the smoke temperature, when the smoke temperature is too high, the burning sensation and the irritation of the mouth of a smoker are obviously increased, and the harmful components in the aerosol are more. In order to reduce the temperature of smoke and filter harmful substances, the heating cigarette generally adopts a four-section type or five-section type composite structure, hollow sections and filter sticks of filter sections with different functional structures are produced respectively according to requirements, and then the filter sticks with different functional structures are combined together through compounding or connecting, so that the production process is complex, the efficiency is low, and the cost is high.
Therefore, how to provide a filter rod with simple structure and production process and good cooling and filtering effects is a technical problem to be solved urgently by those skilled in the art.
Disclosure of utility model
In order to solve the technical problems, the application provides the hollow filter stick which can cool and filter the smoke of the smoking, has good cooling effect, and has simple structure and convenient production and processing.
The technical scheme provided by the application is as follows:
The hollow filter rod comprises a filter rod body, wherein the outer part of the filter rod body is cylindrical, and at least two cavities are arranged in the middle of the filter rod body at intervals along the axial direction;
The diameter of the cavity is gradually increased from small to large along the axial direction, and then gradually decreased from large to small, and the cavity is in a shape with a large middle and two small ends;
Or the diameter of the cavity gradually increases from small to large along the axial direction, and the end of the cavity with smaller diameter is close to the smoke generating section.
Further, a communication cavity is arranged between the adjacent cavities, the communication cavity is cylindrical, the diameter of the communication cavity is smaller than that of the cavities, and two ends of the communication cavity are respectively communicated with the adjacent cavities.
Further, the communication cavity is arranged between the cavity and the smoke generating section.
Further, the cavity and the communication cavity form arc transition.
Further, the diameter of the filter stick body is 5.0 mm-8.0 mm.
Further, the length of the filter stick body is 20 mm-60 mm.
Further, the filter stick body is made of one or more than one mixed tows of acetate tows, polypropylene tows, polylactic acid tows, soybean tows and chitosan tows.
Further, the hardness of the filter rod body is 80% or more of that of a solid filter rod made of the same material and having the same outer diameter.
Further, the length of the cavity along the axial direction is larger than the interval distance between two adjacent cavities.
The heating cigarette comprises a smoke generating section and a filter rod section, wherein the filter rod section comprises the hollow filter rod.
The hollow filter rod and the heating cigarette provided by the utility model can be used in traditional cigarettes or heating cigarettes, when smoke generated by high-temperature heating of tobacco substances in a smoke section passes through the filter rod body, as at least two cavities are arranged in the filter rod body at intervals, the diameters of the cavities are changed along the axial direction, when the smoke flows in the cavities and the intervals between the cavities, the smoke flow speed is changed, the state of smoke fluid is forced to change from laminar flow to turbulent flow, the heat conduction efficiency is improved, and the smoke expands and releases heat, the cooling effect is further enhanced, so that the hollow filter rod has better heat transfer and cooling effect, and meanwhile, the intervals between the cavities are favorable for filtering and cooling harmful substances in the smoke, the smoke inlet temperature is moderate, the smoking experience is good.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings that are required to be used in the embodiments or the description of the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments described in the present application, and other drawings may be obtained according to the drawings without inventive effort to those skilled in the art.
FIG. 1 is a schematic view of a hollow filter rod according to an embodiment of the present application;
FIG. 2 is a schematic structural view of a second hollow filter rod according to an embodiment of the present application;
FIG. 3 is a schematic structural view of a third hollow filter rod according to an embodiment of the present application;
FIG. 4 is a schematic view of a heating cigarette according to an embodiment of the present application;
fig. 5 is a schematic structural view of another heating cigarette according to an embodiment of the present application.
Reference numerals: the filter stick body 1, the cavity 2, the communicating cavity 3, the smoke generating section 4 and the common filter stick 5.
Detailed Description
In order to enable those skilled in the art to better understand the technical solutions of the present application, the technical solutions of the embodiments of the present application will be clearly and completely described below, and it is obvious that the described embodiments are only some embodiments of the present application, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.
It will be understood that when an element is referred to as being "fixed" or "disposed" on another element, it can be directly on the other element or be indirectly on the other element; when an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element.
It is to be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are merely for convenience in describing and simplifying the description based on the orientation or positional relationship shown in the drawings, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus are not to be construed as limiting the application.
Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present application, the meaning of "a plurality" or "a number" means two or more, unless specifically defined otherwise.
It should be understood that the structures, proportions, sizes, etc. shown in the drawings are for illustration purposes only and should not be construed as limiting the application to the extent that it can be practiced, since modifications, changes in the proportions, or adjustments of the sizes, which are otherwise, used in the practice of the application, are included in the spirit and scope of the application which is otherwise, without departing from the spirit or scope thereof.
The term "axial direction" as used herein refers to the axial direction of the filter rod body, i.e., the length direction of the filter rod body.
As shown in fig. 1 to 3, an embodiment of the present application provides a hollow filter rod, which includes a filter rod body 1, wherein an outer portion of the filter rod body 1 is cylindrical, and at least two cavities 2 are axially spaced from a middle portion of the filter rod body 1; the diameter of the cavity 2 is gradually increased from small to large along the axial direction, and then gradually decreased from large to small, and the cavity is in a shape with a large middle and two small ends; or the diameter of the cavity 2 gradually increases from small to large along the axial direction, and the smaller end of the cavity 2 is close to the smoke generating section 4.
The hollow filter rod provided by the embodiment can be used in a traditional cigarette or a heating cigarette, the smoke section 4 is a smoke bullet part of the traditional cigarette or the heating cigarette, when smoke generated by high-temperature heating of tobacco substances in the smoke section 4 passes through the filter rod body 1, at least two cavities 2 are arranged in the middle of the filter rod body 1, the cavities 2 are in an ellipsoidal shape, the larger diameter of the ellipsoidal shape is parallel to the axial direction, or the cavities are gradually enlarged along the axial direction, the cavities are in a horn shape with one small end and one large end, the adjacent cavities 2 are solid spacing sections, the diameters of the adjacent cavities 2 are not communicated, the diameters of the cavities 2 are axially changed, smoke flow rate is changed when smoke flows between the cavities 2 and the cavities 2, the state of smoke fluid is forced to be changed into turbulent flow from laminar flow, the heat conduction efficiency is improved, and the smoke is expanded and released when flowing from the smaller diameter part of the cavities 2, so that the cooling effect is further enhanced.
The filter stick body 1 is made of one or more than one mixed tows of acetate tows, polypropylene tows, polylactic acid tows, soybean tows and chitosan tows. The filter stick body 1 is integrally formed, the shape of a cavity 2 in the middle of the filter stick body 1 is a shuttle shape or a football shape with large middle and small two ends, and the diameter change of each section of the cavity 2 is in gentle transition; or the cavity 2 is cone-shaped, the smaller diameter end is close to the smoke generating section 4, and the smoke flows from the smaller diameter end to the larger diameter end, so that the good cooling effect can be achieved. More preferably, as shown in fig. 3, the cavity 2 includes a first cavity and a second cavity, the diameter of the first cavity is larger than that of the second cavity, the first cavity and the second cavity are alternately arranged, the sizes of the adjacent cavities 2 are different, and the larger cavity 2 and the smaller cavity 2 are alternately arranged, so that the smoke temperature is reduced, and the hardness of the filter stick body 1 is ensured.
The above technical scheme is optimized in this embodiment, as shown in fig. 2 and fig. 3, a communication cavity 3 is disposed between adjacent cavities 2, the communication cavity 3 is cylindrical, the diameter of the communication cavity 3 is smaller than that of the cavities 2, and two ends of the communication cavity 3 are respectively communicated with the adjacent cavities 2. Set up the intercommunication chamber 3 between the adjacent cavity 2 and communicate, be convenient for smog flow, reduced the resistance of inhaling of filter rod, increase the smog volume of entrance, and the diameter of intercommunication chamber 3 is less than the diameter of cavity 2, smog flows in cavity 2 and intercommunication chamber 3 in turn, leads to smog fluidic velocity of flow to change, is favorable to the cooling. Preferably, the cavity 2 and the communication cavity 3 form an arc transition.
More preferably, the communication cavity 3 is arranged between the cavity 2 and the smoke generating section 4. The filter stick is beneficial to reducing the suction resistance of the filter stick body 1, facilitating smoke circulation and improving the smoke quantity of an inlet.
Typically, the diameter of the filter rod body 1 is 5.0mm to 8.0mm. The length of the filter stick body 1 is 20 mm-60 mm.
In this embodiment, the hardness of the filter rod body 1 is 80% or more of that of a solid filter rod made of the same material and having the same outer diameter. The diameter and length of the cavities 2, the number of the cavities 2 and the interval between the adjacent cavities 2 are required to meet the hardness requirement of the filter rod body 1, and the hardness of the filter rod body 1 should reach 80% or more of the hardness of a solid filter rod with the same material and the same outer diameter.
In order to meet the cooling requirement of the smoke, the temperature of the smoke is reduced to a proper temperature, and the length of the cavity 2 along the axial direction is preferably longer than the interval distance between two adjacent cavities 2.
As shown in fig. 4, this embodiment further provides a heating cigarette, which includes a smoke generating section 4 and a filter rod section, where the filter rod section includes the hollow filter rod described above. The smoke generating section 4 and the filter rod section are combined into a whole through the tipping paper rubbing connection, the filter rod section comprises the hollow filter rod, the hollow filter rod has the beneficial effects that at least two cavities 2 are arranged in the filter rod body 1, the diameter of each cavity 2 is changed along the axial direction, when smoke flows between the cavities 2 and the cavities 2, the smoke flow speed can be changed, the smoke fluid state is forced to be changed into turbulent flow from laminar flow, the heat conduction efficiency is improved, and the smoke flows from the smaller diameter part of the cavity 2 to the larger diameter part and expands and releases heat, the cooling effect is enhanced, so that the hollow filter rod has better heat transfer and cooling effects, meanwhile, the interval between the cavities 2 is favorable for filtering harmful substances in the smoke, the smoke cooling and filtering effect is good, the smoke inlet temperature is moderate, the smoking experience is good, the hollow filter rod has the advantages of integral molding, simple structure, and high production and processing efficiency.
The smoke filter rod can be further shown in fig. 5, the common filter rod 5, the hollow filter rod and the smoke generating section 4 are sequentially compounded into a three-section structure, the inside of the hollow filter rod is communicated, smoke circulation is facilitated, the suction resistance is reduced, and meanwhile, the common filter rod 5 is arranged to filter smoke again, so that the smoke filtering effect is good.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the application. Thus, the present application is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (9)
1. A hollow filter rod, characterized in that: the filter rod comprises a filter rod body, wherein the outer part of the filter rod body is cylindrical, at least two cavities are axially arranged in the middle of the filter rod body at intervals, and the length of each cavity in the axial direction is greater than the interval distance between two adjacent cavities;
the diameter of the cavity is gradually increased from small to large along the axial direction, and then gradually decreased from large to small, and the cavity is in a shape with a large middle and two small ends; or the diameter of the cavity gradually increases from small to large along the axial direction, and the end of the cavity with smaller diameter is close to the smoke generating section;
The cavity comprises a first cavity and a second cavity, the diameter of the first cavity is larger than that of the second cavity, and the first cavity and the second cavity are alternately arranged.
2. The hollow filter rod according to claim 1, wherein a communication cavity is arranged between adjacent cavities, the communication cavity is cylindrical, the diameter of the communication cavity is smaller than that of the cavities, and two ends of the communication cavity are respectively communicated with the adjacent cavities.
3. A hollow filter rod according to claim 2, wherein the communication cavity is provided between the cavity and the smoke generating section.
4. A hollow filter rod according to claim 2, wherein the cavity and the communication cavity are in a circular arc transition.
5. A hollow filter rod according to claim 1, wherein the diameter of the filter rod body is 5.0mm to 8.0mm.
6. A hollow filter rod according to claim 5, wherein the length of the filter rod body is 20mm to 60mm.
7. The hollow filter rod according to claim 1, wherein the filter rod body is made of one or more than one mixed tows of acetate tows, polypropylene tows, polylactic acid tows, soybean tows and chitosan tows.
8. A hollow filter rod according to any one of claims 1 to 7, wherein the hardness of the filter rod body is 80% or more of the hardness of a solid filter rod of the same material and outer diameter.
9. A heated cigarette comprising a smoke generating segment and a filter rod segment, wherein the filter rod segment comprises a hollow filter rod according to any one of claims 1 to 8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322126789.2U CN220859428U (en) | 2023-08-08 | 2023-08-08 | Hollow filter stick and heating cigarette |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322126789.2U CN220859428U (en) | 2023-08-08 | 2023-08-08 | Hollow filter stick and heating cigarette |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220859428U true CN220859428U (en) | 2024-04-30 |
Family
ID=90814486
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322126789.2U Active CN220859428U (en) | 2023-08-08 | 2023-08-08 | Hollow filter stick and heating cigarette |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220859428U (en) |
-
2023
- 2023-08-08 CN CN202322126789.2U patent/CN220859428U/en active Active
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| GR01 | Patent grant | ||
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