RU2777420C1 - Insert-type smoking device with heating at a small amount of oxygen, as well as a cigarette system containing it and a method of smoking - Google Patents

Abstract

FIELD: smoking devices.

SUBSTANCE: inventions group relates to the field of devices for smoking a heated non-flammable cigarette. Plug-in type smoking device with heating at a small amount of oxygen contains a cavity for placing a smoking part, an element for extracting smoke. The element for extracting smoke contains a hollow cone and a tube for the formation of smoke of the main flow, covering the periphery of the cone. The hollow part of the cone is a tapering element provided in the area of ​​the cone apex and/or on the side wall of the cone with holes. The main flow smoke tube contains one internal cavity, which is an element similar to the Venturi tube, that is, its tapering and gradually expanding sections are connected to each other by a cylindrical cavity of a smaller internal diameter. The tube in the direction along the circumference on the side wall is provided with a through hole located in the direction of flow relative to the tapering cavity of the tube. The axial distance from the through hole to the bottom side of the cone is less than the axial distance from the hole in the cone to the bottom side of the cone. The inner diameter of said cavity for accommodating the smoking part is larger than the outer diameter of said smoke extraction element. Between the inner wall of the tapering cavity of the tube and the outer wall of the cone, an air flow channel is provided, connected with the air flow in the said cavity. A plug-in type cigarette system, a three-piece cigarette, and a method for smoking a cigarette with a small amount of oxygen are claimed.

EFFECT: increase in the heating temperature without ignition of the smoking part and an increase in the amount of released aromatic components in tobacco, due to a decrease in the oxygen content in the section with tobacco.

10 cl, 8 dwg

Description

Technical field

The present invention relates to the field of heated non-flammable cigarette smoking devices, and more particularly, it relates to a plug-in smoking device with low oxygen heating, a cigarette system containing it, and a method of smoking.

Background of the invention

The history of traditional tobacco already has several hundred years, and it has become an integral part of life for most smokers. In recent years, as people's living standards improve, people pay more and more attention to the problems associated with smoking and health, the harm of passive smoking, etc., and the danger posed by traditional tobacco products is becoming more and more noticeable day by day. At the same time, due to the implementation of the WHO Framework Convention on Tobacco Control, in particular the gradual expansion of the scope of the ban on smoking in public places in all countries of the world, the conditions for the development of tobacco products are undergoing serious and profound changes, and the emphasis in the designs of tobacco products is now for accelerated modifications regarding diversity and smokelessness. New-type tobacco products are gradually becoming the real choice of all major multinational tobacco corporations in response to the daily decline in sales of traditional tobacco products.

Today, the vast majority of heated cigarettes use air as the smoke carrier; to ensure that the tobacco does not burn, the heating temperature used is usually relatively low, generally not exceeding 300°C; Compared with traditional cigarettes, the flavor components of tobacco in the new type of heated non-flammable cigarettes cannot be completely released and the amount of smoke is insufficient, so it is more difficult for such cigarettes to be approved by traditional cigarette lovers. In addition, in the vast majority of heated non-flammable cigarettes, the tobacco end is of an open design in order to ensure air circulation, that is, cut tobacco or reconstituted tobacco is directly exposed to the outside, or communicates with the surrounding air through a certain air flow channel; in the process of removing the tobacco stick after smoking is over, tobacco residues can be dropped and the smoking device is easily contaminated, so after using this type of tobacco for a certain time, it is necessary to take time to clean the smoking device.

If the design of a closed cigarette is used, the oxygen content will decrease during heating (due to the displacement of the air generated by fresh smoke inside), while even if the heating temperature is increased, ignition will not occur, and at the same time, there will also not be a situation where tobacco residues fall and contaminate the smoking device. However, since no carrier air flows through the tobacco, the movement of smoke in a closed cigarette becomes difficult.

If a device for extracting smoke from a closed cigarette is developed, the above problems can be solved.

The essence of the invention

To solve the above problems, the present invention is proposed.

In a first aspect of the present invention, there is provided a plug-in type smoking appliance with low oxygen heating, which comprises a cavity 3 for accommodating a smoking portion, further comprising a smoke extraction element 6 detachable from said smoking appliance or fixed in the specified cavity 3 to accommodate the smoking part;

Said smoke extraction element 6 comprises a hollow cone-containing element 6-1 for extracting smoke and a tube 6-2 for generating mainstream smoke, which, without or with the possibility of separating, circumferentially surrounds the cone 6-1-1 of the cone-containing element 6-1 for smoke extraction;

the hollow portion of said hollow cone-containing smoke extraction member 6-1 is a converging member; said hollow cone containing element 6-1 for extracting smoke is provided in the region of the top of the cone and/or on the side wall of the cone with holes 6-1-2 in the cone; the number of these holes 6-1-2 in the cone is at least one;

said mainstream smoke tube 6-2 has one internal cavity 6-2-1; said cavity 6-2-1 is a venturi type element in respect of its outline, i.e. said cavity 6-2-1 comprises a tapering cavity and a gradually expanding cavity, while the tapering cavity and the gradually expanding cavity are connected to each other by a cylindrical cavity small inner diameter; said pipe 6-2 for generating mainstream smoke in the direction along the circumference on the side wall is provided with at least one through hole 6-2-3, while the through hole 6-2-3 is located in the direction of flow relative to the tapering cavity of the tube 6-2 to generate mainstream smoke; the axial distance from the through holes 6-2-3 to the underside of said cone 6-1-1 is less than the axial distance from said holes 6-1-2 in the cone to the underside of said cone 6-1-1;

the inner diameter of said cavity 3 for accommodating the smoking part is larger than the outer diameter of said smoke extraction element 6;

Between the inner wall of the tapering cavity of said mainstream smoke tube 6-2 and the outer wall of said cone 6-1-1, an air flow channel 6-3 is provided to communicate with the air flow in said cavity 6-2-1.

Preferably, said pipe 6-2 for producing mainstream smoke on the side wall in the direction along the circumference of the tapering cavity, at the location corresponding to the holes 6-1-2 in the cone, is provided with an annular protrusion 6-2-2.

Preferably, said air flow channel 6-3 is tapered on one side facing said main flow smoke tube 6-2. That is, the air flow path 6-3 is tapering from the far side to the near side. At the same time, the speed of said air flow gradually increases, the Coanda effect and the Venturi effect are more prominent, and the smoke extraction effect is enhanced. In this document, the direction of air flow inside the smoking device is taken from the far side to the near side.

Preferably, a male tubular section 6-1-3 extending in the axial direction is provided at the end in the area of the lower side of the cone of said cone-containing smoke extraction member 6-1; at the end of said mainstream smoke tube 6-2 remote from said cone 6-1-1, an axially enlarged section 6-2-4 is provided.

Preferably, a heating element 5 is provided on the cylindrical side wall and/or the bottom side of said cavity 3 to accommodate the smoking part.

Preferably, when said smoke extraction element 6 is separable from said smoking device, its contour is suitable for its placement inside said cavity 3 for accommodating the smoking part.

Preferably, when said smoke extraction element 6 is fixed in said smoking part accommodating cavity 3, said smoking part accommodating cavity 3 in the lower part is provided with a door 4; on said door 4, a protrusion 4-1 is made; Between said element 6 for extracting smoke and said cavity 3 for accommodating the smoking part, there is an element 7 for fixing and limiting the position.

Preferably, said fixing and limiting element 7 comprises a position limiting element connected to said smoke extracting element 6 and a groove for sliding said position limiting element in the axial direction. Said position limiting element is inserted into said groove, and when said position limiting element slides in the groove in the axial direction, movement of said smoke extraction element 6 in the axial direction is provided. Said position limiting element can also be installed and fixed in said groove in a certain position, ensuring that the smoke extraction element 6 is fixed relative to the smoking device.

In a second aspect of the present invention, there is provided a low oxygen heating insert-type cigarette system, which comprises a low oxygen heating insert-type smoking device according to the first aspect and a sectional cigarette;

said sectional cigarette comprises a tobacco section 1 and a filter section 2 connected to each other in a detachable manner, with one end surface and/or a cylindrical side surface of said tobacco section 1 being covered with an airtight foil; inside said section 1 with tobacco, at the end that is not closed, there is an unfilled section 1-1 extending in the axial direction; said filter section 2 has an uncovered section 2-1 which is not wrapped with tipping paper; said unfilled section 1-1 and said unclosed section 2-1 correspond to each other in terms of shape, thereby allowing said unclosed section 2-1 to be inserted into said unfilled section 1-1 when tobacco section 1 is connected to filter section 2.

In addition, the shape of the blank section 1-1 of said tobacco section 1 is also suitable for inserting the male tubular section 6-1-3 of said cone-containing smoke extraction member 6-1 into it; the shape of the unclosed section 2-1 of said filter section 2 is also suitable for insertion into said section 6-2-4 with an enlarged inner diameter of said tube 6-2 to generate mainstream smoke.

In a third aspect of the present invention, there is provided a three-piece plug-in type cigarette, comprising a smoke extraction member 6 according to the first aspect removably mounted in said smoking apparatus, and a sectional cigarette according to the second aspect; the tobacco section 1 of said sectional cigarette has a male tubular section 6-1-3 located at one end of said smoke extraction member 6; said filter section 2 is inserted into section 6-2-4 with an enlarged inner diameter of said smoke extraction element 6 .

In a fourth aspect of the present invention, there is provided a method of smoking by a low oxygen heated insert-type cigarette system, which uses the low oxygen heated insert-type cigarette system according to the second aspect, wherein when said smoke extraction member 6 can be installed in her detachable smoking device, the smoking method is as follows:

while smoking, tobacco section 1 and filter section 2 of said sectional cigarette are separated from each other and connected respectively to male tubular section 6-1-3 and enlarged inner diameter section 6-2-4 at the ends of said element 6 for extracting smoke with obtaining a sectional smoking part A; then, the tobacco section 1 of said sectional smoking part A is inserted into the cavity 3 to accommodate the smoking part, the heating element 5 is turned on, and smoking is carried out;

when said smoke extraction member 6 is fixed in said smoking portion accommodating cavity 3, the smoking method is as follows:

during smoking, tobacco section 1 and filter section 2 of said sectional cigarette are separated from each other; open the door 4 located in the lower part of the cavity 3 to accommodate the smoking part; by means of the element 7 for fixing and limiting the position, the element 6 for extracting smoke is moved; section 1 with tobacco and section 2 of the filter, respectively, through the door 4 and the inlet of the cavity 3 for placing the smoking part are connected to the male tubular section 6-1-3 and the section 6-2-4 with an increased inner diameter at the ends of the specified element 6 for extracting smoke ; after connection, move the smoke extracting element 6 back to the limited position, close the door 4, turn on the heating element 5, and carry out smoking;

after the end of smoking, said filter section 2 is removed directly; said door 4 is opened, the element 6 for extracting smoke is moved by means of the element 7 for fixing and limiting the position, ensuring that at least a part of the said section 1 with tobacco protrudes outward relative to the said door 4 and the said section 1 with tobacco is removed;

wherein, when said door 4 is closed, said protrusion 4-1 can press said tobacco section 1 and seal, said cylindrical heating element 5 just partially or completely covering said tobacco section 1;

turn on the heating element 5 and carry out smoking; with respect to said cavity 3 for accommodating the smoking part, said filter section 2 and smoke extraction element 6 are spaced 8 apart; during smoking, the air does not pass through the section with tobacco, but enters through the gap 8 and through holes 6-2-3; in the inner cavity 6-2-1 of the smoke extraction member 6, a negative pressure is generated by the Venturi effect, thereby extracting the smoke generated in the tobacco section 1; after mixing the smoke with air, mainstream smoke is produced, which enters the consumer's mouth through said filter section 2;

while section 1 with tobacco and section 2 of the filter, respectively, through the door 4 and the inlet of the cavity 3 for placing the smoking part are connected to the male tubular section 6-1-3 and section 6-2-4 with an increased inner diameter at the ends of the specified element 6 for extracting smoke, that is, the tobacco section 1 is inserted through one end of said door 4, and the filter section 2 is inserted through the inlet of the cavity 3 to accommodate the smoking part.

The technical solutions described above can be freely combined with each other in the absence of any contradictions.

The principles of the present invention are as follows:

The Coanda effect, also known as the wall-attachment effect or the kettle effect, is that when a fluid passes over the surface of an object, due to the presence of surface friction, the liquid or gaseous flow of the fluid tends to deviate from the original flow direction and follow the convex surface. subject; this effect is called the Coanda effect.

The Venturi effect is that a low pressure will be created in a region moving at a high speed of the fluid, resulting in suction. Due to the Coanda effect, the movement of air entering through small holes can be ensured along the surface of the cone-containing element for extracting smoke; due to the presence of the Venturi effect, the gas moving at high speed along the surface of the extraction element cone will form a negative pressure region at the holes in the extraction element cone, and then, due to the pressure difference, the smoke generated in the closed section with tobacco can be extracted.

Due to the Coanda effect, the Venturi effect and the natural increase in pressure during the formation of smoke, after heating the cut tobacco, fresh smoke generated in an enclosed space can be extracted.

The present invention is characterized by the following positive effects:

1. According to the present invention, that the air does not pass through the tobacco section, and the extraction of the resulting fresh smoke in a closed space is ensured by the developed smoke extraction element, in which the Venturi effect and the Coanda effect are applied, it can reduce the oxygen content, so it can be increased accordingly heating temperature, while the smoking part will not ignite; the variety of compositions in the section with tobacco is more easily provided; aromatic components in tobacco are released even more, while they are easily released for a long time; the taste sensation becomes more like that of traditional tobacco, and it is easier to get approval from traditional cigarette lovers. Specifically, said mainstream smoke tube comprises one internal cavity; the specified cavity in relation to its contour is an element of the type of a Venturi tube, while the effect of extracting smoke is enhanced and, simultaneously with the extraction of the obtained fresh smoke in an enclosed space, the oxygen content in the section with tobacco may decrease, therefore, against the background of the fact that the smoking part does not ignite, the heating temperature of the cigarette may be appropriately increased to meet the smoke concentration requirement.

2. In the preferred technical solution, the smoke extraction element is held within the cavity for receiving the smoking part by the element for fixing and limiting the position and will not be easily lost if dropped. At the bottom of the cavity for accommodating the smoking part, it is provided with a door, while the smoke extraction element can be moved, and from the two ends of the cavity for accommodating the smoking part, respectively, insert/remove the tobacco section and the filter section, which makes use convenient. In analogues known from the prior art, the cavity for placing the smoking part is closed in the lower part, and after the end of smoking, the smoking part can only be removed from the filter side, while the smoking part expands and becomes more brittle as a result of heating, which makes it difficult to remove it. .

3. In the preferred solution, during heating, the ledge on the door is pressed against said tobacco section to provide a closed structure, and tobacco residues will not fall, so that the smoking device does not need to be cleaned frequently.

4. In a preferred technical solution, said air flow channel is tapered on one side facing said main flow smoke tube. At the same time, the speed of said air flow gradually increases, the Coanda effect and the Venturi effect are more prominent, and the smoke extraction effect is enhanced.

5. In the preferred technical solution, the venturi type element in the main flow smoke tube of the smoke extraction element on the side wall in the direction along the circumference of the tapering cavity, in the place corresponding to the holes in the cone, is provided with an annular protrusion; the annular protrusion reduces the flow area of the air flow channel in the area of the openings in the cone, further increases the gas flow rate, reduces the pressure value, makes the Venturi effect more prominent, and further enhances the smoke extraction effect.

Description of attached graphics

In FIG. 1 is an axial sectional view of the components of a separable smoke extraction element according to Embodiment 1.

In FIG. 2 is an axial sectional view of a non-separable smoke extraction member according to Embodiment 1.

In FIG. 3 is an axial sectional view of an insert-type smoking apparatus with low oxygen heating according to Embodiment 2.

In FIG. 4 is an axial sectional view of the insert-type cigarette system with low oxygen heating according to Embodiment 3.

In FIG. 5 is a general schematic representation of the structure of the sectional cigarette according to Embodiment 3.

In FIG. 6 is an axial sectional view of the components of the sectional cigarette according to Embodiment 3.

In FIG. 7 is an axial sectional view of the components of the separable smoke extraction member according to Embodiment 6.

In FIG. 8 is an axial sectional view of a sectional smoking portion A of a three-section insert-type cigarette according to Embodiment 7.

List of reference numerals in the accompanying figures:

1 - section with tobacco; 1-1 - blank section; 2 - filter section; 2-1 - unclosed section; 3 - cavity for placing the smoking part; 4 - door; 4-1 - ledge; 5 - heating element; 6 - element for extracting smoke; 6-1 - containing a cone element for extracting smoke; 6-1-1 - cone; 6-1-2 - hole in the cone; 6-1-3 - male tubular section; 6-2 - tube for smoke transmission; 6-2-1 - internal cavity; 6-2-2 collar; 6-2-3 - through hole; 6-2-4 - section with increased inner diameter; 6-3 - channel for air flow; 7 - element for fixing and limiting the position; 8 - gap.

Specific Implementation Methods

Hereinafter, the present invention will be further explained by the example of specific embodiments.

Embodiment 1

An insert-type smoking appliance with low oxygen heating, which comprises a cavity 3 for accommodating a smoking portion and further comprises a smoke extractor 6 detachable from said smoking appliance;

Said smoke extraction element 6 comprises a hollow cone-containing element 6-1 for extracting smoke and a tube 6-2 for generating mainstream smoke, which, without or with the possibility of separating, circumferentially surrounds the cone 6-1-1 of the cone-containing element 6-1 for smoke extraction;

the hollow portion of said hollow cone-containing smoke extraction member 6-1 is a converging member; the cone of said hollow cone-containing smoke extraction element 6-1 on the side wall is provided with 2 holes 6-1-2 in the cone;

said mainstream smoke tube 6-2 has one internal cavity 6-2-1; the specified cavity 6-2-1 in relation to its contour is a Venturi type element, that is, its tapering and gradually expanding sections are connected to each other by a cylindrical cavity of small internal diameter; said mainstream smoke tube 6-2 in the circumferential direction on the side wall is provided with 2 through holes 6-2-3, the through holes 6-2-3 being located downstream of the mainstream smoke tube tapering cavity; the axial distance from the through holes 6-2-3 to the underside of said cone 6-1-1 is less than the axial distance from said holes 6-1-2 in the cone to the underside of said cone 6-1-1;

the inner diameter of said cavity 3 for accommodating the smoking part is larger than the outer diameter of said smoke extraction element 6;

between the inner wall of the tapering cavity of said mainstream smoke tube 6-2 and the outer wall of said cone 6-1-1, an air flow channel 6-3 is provided to communicate with the air flow in said cavity 6-2-1;

said tube 6-2 for generating mainstream smoke on the side wall in the direction along the circumference of the tapering cavity, at the location corresponding to the holes 6-1-2 in the cone, is provided with an annular protrusion 6-2-2.

Said airflow channel 6-3 is tapering on one side facing said mainflow smoke tube 6-2. At the same time, the speed of said air flow gradually increases, the Coanda effect and the Venturi effect are more prominent, and the smoke extraction effect is enhanced.

At the end in the area of the lower side of the cone of the specified containing the cone element 6-1 for extracting smoke, a male tubular section 6-1-3 is provided, extending in the axial direction; at the end of said mainstream smoke tube 6-2 remote from said cone 6-1-1, an axially enlarged section 6-2-4 is provided.

A heating element 5 is provided on the lower side and the cylindrical side wall of said cavity 3 to accommodate the smoking part.

The contour of said element 6 for extracting smoke is suitable for its placement inside said cavity 3 for accommodating the smoking part.

In FIG. 1 is an axial sectional view of the components of said smoke extraction element 6 when it is of a separable structure, the main flow smoke tube 6-2 separably enclosing the cone 6-1-1 of the cone-containing element 6- 1 for smoke extraction.

In FIG. 2 is an axial sectional view of said smoke extraction element 6 when it is of one-piece construction, the main flow smoke tube 6-2 without separating circumferentially enclosing the cone 6-1-1 of the cone-containing element 6-1 for extracting smoke, and said holes 6-1-2 in the cone are located on the side wall of the cone 6-1-1.

Embodiment 2

In FIG. 3 shows an insert-type smoking device with low oxygen heating, which includes a cavity 3 for receiving a smoking part and further comprises a smoke extraction element 6 fixed in said cavity 3 for receiving a smoking part;

said smoke extracting member 6 comprises a hollow cone-containing smoke extracting member 6-1 and a mainstream smoke generating tube 6-2 non-separably circumferentially surrounding the cone 6-1-1 of the cone-containing smoke extracting member 6-1;

the hollow portion of said hollow cone-containing smoke extraction member 6-1 is a converging member; said hollow cone-containing element 6-1 for extracting smoke in the region of the top of the cone is provided with holes 6-1-2 in the cone; the number of these holes 6-1-2 in the cone is at least one;

said mainstream smoke tube 6-2 has one internal cavity 6-2-1; the specified cavity 6-2-1 in relation to its contour is a Venturi type element, that is, its tapering and gradually expanding sections are connected to each other by a cylindrical cavity of small internal diameter; said pipe 6-2 for generating mainstream smoke in the circumferential direction on the side wall is provided with at least one through hole 6-2-3, while the through hole 6-2-3 is located in the direction of flow relative to the tapering cavity of the smoke pipe main stream; the axial distance from the through hole 6-2-3 to the underside of said cone 6-1-1 is less than the axial distance from said hole 6-1-2 in the cone to the underside of said cone 6-1-1;

the inner diameter of said cavity 3 for accommodating the smoking part is larger than the outer diameter of said element 6 for extracting smoke. In the lower part of said cavity 3, a door 4 is provided to accommodate the smoking part; on said door 4, a protrusion 4-1 is made; between said element 6 for extracting smoke and said cavity 3 for accommodating the smoking part, an element 7 is provided for fixing and limiting the position; the specified element 7 for fixing and limiting the position is made with the possibility of fixing the position of the specified element 6 for extracting smoke with its fixation relative to the smoking device, as well as with the possibility of ensuring the movement of the specified element 6 for extracting smoke in the axial direction. Between the inner wall of the tapering cavity of said mainstream smoke tube 6-2 and the outer wall of said cone 6-1-1, an air flow channel 6-3 is provided to communicate with the air flow in said cavity 6-2-1; on one side facing said mainstream smoke tube 6-2, said airflow channel 6-3 is converging. At the same time, the speed of said air flow gradually increases, the Coanda effect and the Venturi effect are more prominent, and the smoke extraction effect is enhanced.

At the end in the area of the lower side of the cone of the specified containing the cone element 6-1 for extracting smoke, a male tubular section 6-1-3 is provided, extending in the axial direction; at the end of said mainstream smoke tube 6-2 remote from said cone 6-1-1, an axially enlarged section 6-2-4 is provided.

A heating element 5 is provided on the cylindrical side wall of said cavity 3 to accommodate the smoking part.

Said tube 6-2 for producing mainstream smoke on the side wall in the direction along the circumference of the tapered cavity, at the location corresponding to the holes 6-1-2 in the cone, is provided with an annular protrusion 6-2-2.

Naturally, in another solution according to embodiment 2, said smoke extraction element 6 can also be a separable structure, as shown in FIG. one.

Embodiment 3

With reference to FIG. 4, 5, and 6 illustrate a low oxygen heating plug-in type cigarette system that comprises a low oxygen heated smoking apparatus according to Embodiment 2 and a sectional cigarette;

said sectional cigarette comprises a tobacco section 1 and a filter section 2 connected to each other in a detachable manner, with one end surface and a cylindrical side surface of said tobacco section 1 covered with an airtight foil; inside said section 1 with tobacco, at the end that is not closed, there is an unfilled section 1-1 extending in the axial direction; said filter section 2 has an uncovered section 2-1 which is not wrapped with tipping paper; said unfilled section 1-1 and said unclosed section 2-1 correspond to each other in terms of shape, thereby allowing said unclosed section 2-1 to be inserted into said unfilled section 1-1 when tobacco section 1 is connected to filter section 2.

In addition, the shape of the blank section 1-1 of said tobacco section 1 is also suitable for inserting the male tubular section 6-1-3 of said cone-containing smoke extraction member 6-1 into it; the shape of the unclosed section 2-1 of said filter section 2 is also suitable for insertion into said section 6-2-4 with an enlarged inner diameter of said tube 6-2 to generate mainstream smoke.

In FIG. 4 is an axial sectional view of the insert-type cigarette system with low oxygen heating according to Embodiment 3, wherein the direction of the arrows in the figure indicates the direction of air flow during smoking. In FIG. 5 is a general schematic of the structure of the sectional cigarette according to Embodiment 3. FIG. 6 is an axial sectional view of the components of the sectional cigarette according to Embodiment 3.

Embodiment 4

A method for smoking a low oxygen heating plug-in type cigarette, which uses the low oxygen heating non-flammable cigarette system of Embodiment 1, wherein said smoke extraction member 6 is separably installed in its smoking apparatus; smoking method is as follows:

while smoking, tobacco section 1 and filter section 2 of said sectional cigarette are separated from each other and connected respectively to male tubular section 6-1-3 and enlarged inner diameter section 6-2-4 at the ends of said element 6 for extracting smoke with obtaining a sectional smoking part A; then, the tobacco section 1 of said sectional smoking part A is inserted into the cavity 3 for accommodating the smoking part, the heating element 5 is turned on, and smoking is carried out.

Embodiment 5

A method for smoking a low oxygen heating plug-in type cigarette, which uses the low oxygen heating non-flammable cigarette system of Embodiment 2, wherein said smoke extraction member 6 is fixed in said smoking portion accommodating cavity 3; smoking method is as follows:

during smoking, tobacco section 1 and filter section 2 of said sectional cigarette are separated from each other; open the door 4 located in the lower part of the cavity 3 to accommodate the smoking part; by means of the element 7 for fixing and limiting the position, the element 6 for extracting smoke is moved; section 1 with tobacco and section 2 of the filter, respectively, through the door 4 and the inlet of the cavity 3 for placing the smoking part are connected to the male tubular section 6-1-3 and the section 6-2-4 with an increased inner diameter at the ends of the specified element 6 for extracting smoke ; after connection, move the smoke extracting element 6 back to the limited position, close the door 4, turn on the heating element 5, and carry out smoking;

after the end of smoking, said filter section 2 is removed directly; said door 4 is opened, the element 6 for extracting smoke is moved by means of the element 7 for fixing and limiting the position, ensuring that at least a part of the said section 1 with tobacco protrudes outward relative to the said door 4 and the said section 1 with tobacco is removed;

wherein, when said door 4 is closed, said protrusion 4-1 can press said tobacco section 1 and seal, said cylindrical heating element 5 just completely covering said tobacco section 1;

turn on the heating element 5 and carry out smoking; with respect to said cavity 3 for accommodating the smoking part, said filter section 2 and smoke extraction element 6 are spaced 8 apart; during smoking, the air does not pass through the section with tobacco, but enters through the gap 8 and through holes 6-2-3; in the inner cavity 6-2-1 of the smoke extraction member 6, a negative pressure is generated by the Venturi effect, thereby extracting the smoke generated in the tobacco section 1; after mixing the smoke with air, mainstream smoke is produced, which enters the consumer's mouth through said filter section 2;

while section 1 with tobacco and section 2 of the filter, respectively, through the door 4 and the inlet of the cavity 3 for placing the smoking part are connected to the male tubular section 6-1-3 and section 6-2-4 with an increased inner diameter at the ends of the specified element 6 for extracting smoke, that is, the tobacco section 1 is inserted through one end of said door 4, and the filter section 2 is inserted through the inlet of the cavity 3 to accommodate the smoking part.

During smoking, the airflow direction is as shown in FIG. 4. With respect to the specified cavity 3 for placing the smoking part, the specified filter section 2 and the smoke extraction element 6 are located with a gap 8. During smoking, the air does not pass through the section 1 with tobacco, but enters through the gap 8 and through holes 6-2- 3; in the inner cavity 6-2-1 of the smoke extraction member 6, a negative pressure is generated by the Venturi effect, thereby extracting the smoke generated in the tobacco section 1; after mixing the smoke with air, mainstream smoke is formed, which enters the consumer's mouth through the filter section.

Embodiment 6

The differences from Embodiment 1 are as follows:

Said tube 6-2 for generating mainstream smoke on the side wall in the direction along the circumference of the tapered cavity, at the location corresponding to the holes 6-1-2 in the cone, is not provided with an annular protrusion 6-2-2. Said openings 6-1-2 in the cone are located in the area of the apex of the cone of said hollow cone-containing element 6-1 for extracting smoke in the amount of one. In FIG. 7 shows a sectional view in the axial direction of the components of said smoke extraction element 6 when it is of a separable structure. That is

a plug-in type smoking appliance with low oxygen heating, which comprises a cavity 3 for receiving a smoking portion and further comprises a smoke extraction member 6 detachable from said smoking appliance;

Said smoke extraction element 6 comprises a hollow cone-containing element 6-1 for extracting smoke and a tube 6-2 for generating mainstream smoke, which, without or with the possibility of separating, circumferentially surrounds the cone 6-1-1 of the cone-containing element 6-1 for smoke extraction;

the hollow portion of said hollow cone-containing smoke extraction member 6-1 is a converging member; said hollow cone-containing element 6-1 for extracting smoke in the region of the top of the cone is provided with one opening 6-1-2 in the cone;

said mainstream smoke tube 6-2 has one internal cavity 6-2-1; the specified cavity 6-2-1 in relation to its contour is a Venturi-type element, that is, its tapering and gradually expanding sections are connected to each other by a cylindrical cavity of small internal diameter; said pipe 6-2 for generating mainstream smoke in the circumferential direction on the side wall is provided with at least one through hole 6-2-3, while the through hole 6-2-3 is located in the direction of flow relative to the tapering cavity of the smoke pipe main stream; the axial distance from the through hole 6-2-3 to the underside of said cone 6-1-1 is less than the axial distance from said hole 6-1-2 in the cone to the underside of said cone 6-1-1;

the inner diameter of said cavity 3 for accommodating the smoking part is larger than the outer diameter of said smoke extraction element 6;

between the inner wall of the tapering cavity of said mainstream smoke tube 6-2 and the outer wall of said cone 6-1-1, an air flow channel 6-3 is provided to communicate with the air flow in said cavity 6-2-1;

said air flow channel 6-3 is tapered on one side facing said main flow smoke tube 6-2. At the same time, the speed of said air flow gradually increases, the Coanda effect and the Venturi effect are more prominent, and the smoke extraction effect is enhanced.

At the end in the area of the lower side of the cone of the specified containing the cone element 6-1 for extracting smoke, a male tubular section 6-1-3 is provided, extending in the axial direction; at the end of said mainstream smoke tube 6-2 remote from said cone 6-1-1, an axially enlarged section 6-2-3 is provided.

A heating element 5 is provided on the lower side and the cylindrical side wall of said cavity 3 to accommodate the smoking part.

The contour of said element 6 for extracting smoke is suitable for its placement inside said cavity 3 for accommodating the smoking part.

Embodiment 7

In FIG. 8 shows a three-piece plug-in type cigarette having a smoke extraction member 6 according to Embodiment 6 removably installed in said smoking apparatus, and a sectional cigarette according to Embodiment 3; the tobacco section 1 of said sectional cigarette has a male tubular section 6-1-3 located at one end of said smoke extraction member 6; said filter section 2 is inserted into section 6-2-4 with an enlarged inner diameter of said smoke extraction element 6 . In FIG. 8 is an axial sectional view of a three-piece plug-in type cigarette when said smoke extraction member 6 is of a separable structure.

The above is only a specific way of carrying out the present invention, but the scope of protection of the present invention is not limited to this, and any person skilled in the art, within the technical solutions disclosed regarding the present invention, will be able to easily suggest changes or replacements, all of which should be within the protection scope of the present invention. Therefore, the scope of protection of the present invention should be determined by the scope of the claims.

Claims (21)

1. Plug-in type smoking device with heating at a small amount of oxygen, which contains a cavity (3) for accommodating a smoking part, characterized in that it additionally contains an element (6) for extracting smoke, made with the possibility of separation from the specified smoking device or fixed in said cavity (3) to accommodate the smoking part; Said element (6) for extracting smoke comprises a hollow element (6-1) containing a cone for extracting smoke and a tube (6-2) for generating main flow smoke, enclosing the cone (6-1-1) around the periphery without or with the possibility of separating ) containing a cone element (6-1) for extracting smoke; the hollow part of said hollow cone-containing element (6-1) for extracting smoke is a converging element; said hollow cone containing element (6-1) for extracting smoke is provided in the region of the top of the cone and/or on the side wall of the cone with holes (6-1-2) in the cone; the number of these holes (6-1-2) in the cone is at least one; the specified tube (6-2) for the formation of mainstream smoke contains one internal cavity (6-2-1); the specified cavity (6-2-1) in relation to its contour is an element like a Venturi tube, that is, its tapering and gradually expanding sections are connected to each other by a cylindrical cavity of small internal diameter; the specified tube (6-2) for the formation of smoke of the main flow in the direction along the circumference on the side wall is provided with at least one through hole (6-2-3), while the through hole (6-2-3) is located in the direction of flow relative to tapering cavity tube (6-2) for the formation of mainstream smoke; the axial distance from the through hole (6-2-3) to the bottom side of the specified cone (6-1-1) is less than the axial distance from the specified hole (6-1-2) in the cone to the bottom side of the specified cone (6-1 -one); the inner diameter of said cavity (3) for accommodating the smoking part is greater than the outer diameter of said element (6) for extracting smoke; between the inner wall of the tapering cavity of the specified tube (6-2) for the formation of the smoke of the main flow and the outer wall of the specified cone (6-1-1) there is a channel (6-3) for the air flow connected with the air flow in the specified cavity (6- 2-1). 2. A plug-in type smoking device with heating with a small amount of oxygen according to claim 1, characterized in that the specified tube (6-2) for the formation of smoke of the main flow on the side wall in the direction along the circumference of the tapering cavity, in the place corresponding to the holes ( 6-1-2) in a cone, provided with a collar (6-2-2). 3. Plug-in type smoking device with heating with a small amount of oxygen according to claim 1 or 2, characterized in that said channel (6-3) for air flow is tapering on one side facing said tube (6-2) for formation of mainstream smoke. 4. A plug-in type smoking device with heating with a small amount of oxygen according to claim 1 or 2, characterized in that at the end in the region of the lower side of the cone of the specified cone-containing element (6-1) for extracting smoke, a male tubular section (6- 1-3) extending in the axial direction; at the end of the specified tube (6-2) for the formation of mainstream smoke, remote from the specified cone (6-1-1), a section (6-2-4) with an increased inner diameter is provided, passing in the axial direction. 5. A plug-in type smoking device with heating with a small amount of oxygen according to claim 1 or 2, characterized in that a heating element (5) is provided on the cylindrical side wall and / or the lower side of the said cavity (3) to accommodate the smoking part. 6. A plug-in type smoking device with heating with a small amount of oxygen according to claim 1 or 2, characterized in that when said element (6) is made to extract smoke with the possibility of separating from said smoking device, its contour is suitable for its placement inside the specified cavity (3) for placing the smoking part. 7. Plug-in type smoking device with heating with a small amount of oxygen according to claim 1 or 2, characterized in that when said element (6) is fixed for extracting smoke in said cavity (3) for placing the smoking part, said cavity (3) for placement of the smoking part in the lower part is equipped with a door (4); a ledge (4-1) is made on said door (4); between the specified element (6) for extracting smoke and the specified cavity (3) for placing the smoking part, there is an element (7) for fixing and limiting the position. 8. The insert-type cigarette system with heating with a small amount of oxygen, characterized in that it contains a plug-type smoking device with heating with a small amount of oxygen according to any one of paragraphs. 1-5 and a sectional cigarette; said sectional cigarette comprises a section (1) with tobacco and a section (2) of a filter connected to each other in a detachable manner, wherein the surface of one end and/or the cylindrical side surface of said section (1) with tobacco is covered with an airtight foil; inside said section (1) with tobacco, at the end that is not closed, there is an unfilled section (1-1) extending in the axial direction; said section (2) of the filter contains an unclosed section (2-1) which is not wrapped in tipping paper; said unfilled section (1-1) and said unclosed section (2-1) correspond to each other in terms of shape, thereby enabling said unclosed section (2-1) to be inserted into said unfilled section (1-1) when connecting section (1 ) with tobacco with filter section (2); wherein the shape of the blank section (1-1) of said tobacco section (1) is also suitable for inserting the male tubular section (6-1-3) of said cone-containing element (6-1) to extract smoke; the shape of the unclosed section (2-1) of said filter section (2) is also suitable for its insertion into said section (6-2-4) with an enlarged inner diameter of said tube (6-2) to generate mainstream smoke. 9. Three-piece plug-in type cigarette, characterized in that it contains an element (6) for extracting smoke, specified in any one of paragraphs. 1-6 and made with the possibility of separation from the device for smoking, and the sectional cigarette specified in paragraph 8; in the tobacco section (1) of said sectional cigarette, a male tubular section (6-1-3) is inserted at one end of said smoke extraction element (6); the specified section (2) of the filter is inserted into the section (6-2-4) with an increased inner diameter of the specified element (6) for extracting smoke. 10. A method for smoking a low oxygen heating insert-type cigarette, characterized in that it uses the insert-type cigarette system with low oxygen heating according to claim 8, wherein when said smoke extraction element (6) is set to its smoking device with the possibility of separation, the method of smoking is as follows: during smoking, section (1) with tobacco and section (2) of the filter of the specified sectional cigarette are separated from each other and connected respectively to the male tubular section (6-1-3) and section (6-2-4) with an increased inner diameter by the ends of said element (6) for extracting smoke to obtain a sectional smoking part A; then the section (1) with tobacco of the specified sectional smoking part A is inserted into the cavity (3) for placing the smoking part, the heating element (5) is switched on and smoking is carried out; when the specified element (6) for extracting smoke is fixed in the specified cavity (3) for accommodating the smoking part, the smoking method is as follows: during smoking, the tobacco section (1) and the filter section (2) of said sectional cigarette are separated from each other; open the door (4) located in the lower part of the cavity (3) to accommodate the smoking part; by means of the element (7) for fixing and limiting the position, the element (6) for extracting smoke is moved; section (1) with tobacco and section (2) of the filter, respectively, through the door (4) and the inlet of the cavity (3) for placing the smoking part are connected to the male tubular section (6-1-3) and section (6-2-4) with an increased inner diameter at the ends of the specified element (6) to extract smoke; after connection, moving the smoke extraction element (6) back to the limited position, closing the door (4), turning on the heating element (5) and smoking; after the end of smoking, said filter section (2) is removed directly; the specified door (4) is opened, by means of the element (7) for fixing and limiting the position, the smoke extraction element (6) is moved to ensure that at least part of the specified section (1) with tobacco protrudes outward relative to the specified door (4) and the specified section is removed (1) with tobacco.

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