CN111567880B - Long and short cigarette compatible circumferential heating smoking set and use method thereof - Google Patents

Abstract

The present invention belongs to the field of new cigarette smoking utensils, and particularly relates to a long and short cigarette compatible circumferential heating smoking utensils and a method of using the same. The smoking utensils include: a cigarette accommodating chamber (19); an upper heating element (13), which surrounds the periphery of the upper section (19‑1) of the cigarette accommodating chamber; a lower heating element (16), which surrounds the periphery of the lower section (19‑2) of the cigarette accommodating chamber; a movable short cigarette limiting seat (15), which has a limiting plate (15‑2), and when the movable short cigarette limiting seat (15) moves to a first position relative to the smoking utensils body, the limiting plate (15‑2) is located in the gap between the upper heating element (13) and the lower heating element (16). The present invention designs a long and short cigarette compatible circumferential heating smoking utensils for the first time, which can accommodate long cigarettes and short cigarettes, and the movable short cigarette limiting seat can limit the short cigarettes to prevent the cigarettes from being inserted too deep. The two heating elements can be started independently to avoid heat waste and damage to the smoking utensils.

Description

A circumferentially heated smoking device compatible with long and short cigarettes and a method of using the same

Technical Field

The invention belongs to the field of novel cigarette smoking articles, and in particular relates to a circumferentially heated smoking article compatible with long and short cigarettes and a use method thereof.

Background technique

In recent years, under the dual pressure of global tobacco control and public health opinion, the development of traditional cigarettes has been increasingly restricted. As one of the important new tobacco products, heated cigarettes have set off a wave of healthy consumption worldwide and become an important part of the world tobacco market. Heated cigarettes are tobacco products that use heat sources to heat the core material of cigarettes to volatilize nicotine, smoke-generating agents and flavor substances in them to meet the needs of smokers. Unlike traditional cigarettes, heated cigarettes only heat cigarettes to 220℃-240℃ (circumferentially heated cigarettes) and around 350℃ (center heated cigarettes), which are much lower than the highest temperature of traditional cigarettes when they are burned (greater than 900℃). Therefore, the harmful components produced by heated cigarettes are greatly reduced, and they are widely concerned and loved by smokers.

In the process of implementing the present invention, the inventors found that there are at least the following problems in the prior art:

1. The specifications, diameters and lengths of heated cigarettes developed by various companies vary according to product development needs. Taking circumferentially heated cigarettes as an example, the diameter of the currently common circumferentially heated cigarettes is 17mm, but the lengths of the cigarettes vary. For example, the length of the Glo circumferentially heated cigarette developed by British American Tobacco is 82mm, and the lengths of the circumferentially heated cigarettes developed by domestic tobacco companies mainly include 84mm, 60mm, etc. As a result, each length of cigarette specification needs to be developed separately with matching smoking utensils, which brings inconvenience to the work of heated cigarette product developers and affects consumers' consumption experience.

2. Even if a short cigarette is inserted into a long cigarette device for smoking, the smoking experience of the short cigarette is poor because the heating process is fixed. In addition, the heating cavity where the cigarette is not inserted will also be heated, wasting heat. If the accumulated heat is too high, the temperature of the cigarette will be high when smoking, affecting the consumer experience. In addition, the heating tube burning empty is easy to damage the smoking device.

The present invention is proposed to solve the above-mentioned problems.

Summary of the invention

A first aspect of the present invention provides a long and short cigarette compatible circumferentially heated smoking device, the smoking device comprising:

The cigarette accommodating chamber 19 comprises an upper cigarette accommodating chamber section 19-1, a lower cigarette accommodating chamber section 19-2 and a connecting section 19-3 therebetween;

An upper heating element 13, which surrounds the outer periphery of the upper section 19-1 of the cigarette receiving chamber;

The lower heating element 16 surrounds the outer periphery of the lower section 19-2 of the cigarette receiving chamber, and there is a gap between it and the upper heating element 13, and the interior of the gap is the connecting section 19-3 of the cigarette receiving chamber 19;

A movable short cigarette limiting seat 15, which has a limiting plate 15-2. When the movable short cigarette limiting seat 15 moves to a first position relative to the smoking device body, the limiting plate 15-2 is located in the gap between the upper heating element 13 and the lower heating element 16;

When the movable short cigarette limiting seat 15 moves to the second position relative to the smoking device body, the limiting plate 15 - 2 is located outside the gap between the upper heating element 13 and the lower heating element 16 .

The smoking device body can be considered as any component that is fixed in position relative to the housing 3 of the smoking device.

One function of the movable short cigarette limiting seat 15 is to limit the short cigarette to prevent the cigarette from being inserted too deeply.

Preferably, the smoking article further comprises:

Case 3,

The push cover 2 is arranged outside the housing 3 and connected to the movable short cigarette limiting seat 15. The movement of the movable short cigarette limiting seat 15 can be achieved by pushing the push cover 2.

Preferably, the limiting plate 15 - 2 has at least one first air inlet hole 15 - 1 , and when the cigarette in the cigarette accommodating chamber 19 is inhaled, the cigarette accommodating chamber 19 is connected to the outside air.

When a short cigarette is smoked, outside air passes through the lower section 19-2 of the cigarette accommodating chamber and can enter the cigarette through at least one first air inlet hole 15-1.

When inhaling, the manner in which the cigarette holding chamber 19 is connected to the outside air includes: 1. A vent hole or gap connected to both the outside air and the cigarette holding chamber 19 is provided on the casing 3 of the smoking device; 2. A one-way valve 18 connected to both the outside air and the cigarette holding chamber 19 is provided on the casing 3 of the smoking device. When inhaling, the one-way valve 18 opens toward the inside of the smoking device.

Preferably, the push cover 2 and the movable short cigarette limiting seat 15 are integrally connected.

Preferably, the smoking article further comprises:

At least one temperature measuring control element, which detects the heating temperature of the upper heating element 13 and the lower heating element 16 respectively, and/or controls the heating power of the upper heating element 13 and the lower heating element 16 respectively.

Preferably, the smoking article further comprises:

At least one temperature measuring control element detects the heating temperature of the upper heating element 13 and the lower heating element 16 respectively, and controls the heating power of the upper heating element 13 and the lower heating element 16 respectively.

Preferably, the smoking article further comprises:

an upper temperature measuring control element 5, which detects the heating temperature of the upper heating element 13 and controls the heating power of the upper heating element 13;

The lower temperature measuring control element 7 detects the heating temperature of the lower heating element 16 and controls the heating power of the lower heating element 16 .

Preferably, the push cover 2 is provided with a short cigarette insertion port 1 and a long cigarette insertion port 10 for smoking short cigarettes and long cigarettes respectively;

When the movable short cigarette limiting seat 15 moves to the first position relative to the smoking device body, the short cigarette insertion port 1 is located directly above the cigarette accommodating cavity 19;

When the movable short cigarette limiting seat 15 moves to the second position relative to the smoking device body, the long cigarette insertion port 10 is located directly above the cigarette accommodating cavity 19 .

Preferably, the smoking device is also provided with:

Short cigarette switch 11, when the short cigarette switch 11 is triggered and the smoking device is started for heating, the control system of the smoking device controls the upper heating element 13 to start heating, and the lower heating element 16 does not start working, and accordingly, the upper temperature measuring control element 5 detects the heating temperature of the upper heating element 13 and controls the heating power, and the lower temperature measuring control element 7 does not start working;

The long cigarette switch 4, when triggered, starts the smoking device for heating, and the control system of the smoking device controls the upper heating element 13 and the lower heating element 16 to start the heating work according to the set program. At the same time, the upper temperature measuring control element 5 and the lower temperature measuring control element 7 respectively detect the heating temperature of the upper heating element 13 and the lower heating element 16 and control the heating power.

The positions of the short cigarette switch 11 and the long cigarette switch 4 are designed as follows:

When the movable short cigarette limiting seat 15 moves to the first position relative to the smoking device body, the push cover 2 or the movable short cigarette limiting seat 15 triggers the short cigarette switch 11;

When the movable short cigarette limiting seat 15 moves to the second position relative to the smoking device body, the push cover 2 or the movable short cigarette limiting seat 15 triggers the long cigarette switch 4.

Preferably, the smoking device further comprises: a long cigarette limiting seat 8 , which is arranged at the lower end of the cigarette accommodating cavity 19 , and the upper end portion at least partially abuts against the lower end of the cigarette accommodating cavity 19 .

Preferably, the long cigarette stopper 8 is a cylindrical hollow tube structure, the upper end of which abuts against the lower end of the cigarette accommodating chamber 19, and the lower end of the long cigarette stopper 8 is a one-way valve 18 arranged on the smoking device housing 3. When inhaling, the one-way valve 18 opens toward the inside of the smoking device. When inhaling, the outside air enters the cigarette accommodating chamber 19 through the one-way valve 18 and the hollow structure of the hollow tube of the long cigarette stopper 8 in sequence.

Preferably, an upper vacuum tube 14 is disposed around the upper heating element 13, and a lower vacuum tube 17 is disposed around the lower heating element 16. The upper vacuum tube 14 and the lower vacuum tube 18 are used to prevent the upper heating element 13 and the lower heating element 16 from losing their temperatures quickly.

Preferably, the length of the cigarette accommodating cavity 19 is 30-50 mm (excluding 30 mm), and the length of the upper section 19-1 of the cigarette accommodating cavity is 10-30 mm (including 30 mm).

That is, the length of the cigarette accommodating chamber 19 is suitable for accommodating long cigarettes, and the length of the upper section 19-1 of the cigarette accommodating chamber is suitable for accommodating short cigarettes.

Herein, the long cigarette refers to a cigarette with a length ranging from 60 to 100 mm (excluding 60 mm), and the short cigarette refers to a cigarette with a length ranging from 30 to 60 mm (including 60 mm).

The second aspect of the present invention provides a method for using the heated smoking device according to the first aspect, which comprises the following steps:

Push the push cover 2 to the left or right to make the movable short cigarette limit seat 15 move to the first position relative to the smoking device body, then the limit plate 15-2 is located in the gap between the upper heating element 13 and the lower heating element 16, and the push cover 2 or the movable short cigarette limit seat 15 triggers the short cigarette switch 11. At this time, insert the short cigarette from the short cigarette insertion port 1 into the upper section 19-1 of the cigarette accommodating chamber, start the smoking device for heating, and the control system of the smoking device controls the upper heating element 13 to start the heating work, and the lower heating element 16 does not start working. Accordingly, the upper temperature measuring control element 5 detects the heating temperature of the upper heating element 13 and controls the heating power, and the lower temperature measuring control element 7 does not start working;

Push the push cover 2 to the right or left to make the movable short cigarette limit seat 15 move to the second position relative to the smoking device body, then the limit plate 15-2 is located outside the gap between the upper heating element 13 and the lower heating element 16, and the push cover 2 or the movable short cigarette limit seat 15 triggers the long cigarette switch 4. At this time, insert the long cigarette into the cigarette accommodating cavity 19 from the long cigarette insertion port 10, and start the smoking device for heating. The control system of the smoking device controls the upper heating element 13 and the lower heating element 16 to start the heating work according to the set program. At the same time, the upper temperature measuring control element 5 and the lower temperature measuring control element 7 respectively detect the heating temperature of the upper heating element 13 and the lower heating element 16 and control the heating power.

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

The present invention has the following beneficial effects:

1. The present invention is the first to design a long and short cigarette compatible circumferential heating smoking device, which includes a two-stage cigarette accommodating chamber 19 and two upper and lower heating elements, and has a movable short cigarette limiter. The cigarette accommodating chamber 19 of the present invention can accommodate long cigarettes and short cigarettes, and the movable short cigarette limiter can limit the short cigarette to prevent the cigarette from being inserted too deep. The upper and lower heating elements can be independently started according to the heating needs to avoid heat waste and heat accumulation to damage the smoking device.

2. In the preferred technical solution, the push cover is connected to the movable short cigarette stopper, and the movement of the movable short cigarette stopper can be achieved by pushing the push cover. Two openings are designed on the push cover, namely, a short cigarette insertion opening and a long cigarette insertion opening, for inserting short cigarettes and long cigarettes into the cigarette accommodating cavity 19 respectively.

3. In a more preferred technical solution, pushing the push cover left and right can respectively trigger the long cigarette switch and the short cigarette switch to start the heating program of the long cigarette and the short cigarette respectively. That is, inserting a cigarette starts the heating program of the cigarette at the same time. Therefore, the heating program of the long cigarette and the short cigarette of the present invention is simple and convenient to switch, and the two heating programs will not be confused to cause misoperation.

4. In the preferred technical solution, an upper temperature measuring control element and a lower temperature measuring control element are respectively provided to perform temperature testing and temperature control on the upper and lower heating elements. When the short cigarette switch is triggered, the upper heating element starts to heat up, and at the same time, the upper temperature measuring control element starts to test and control the heating temperature of the upper heating element. When the long cigarette switch is triggered, the upper and lower heating elements start to heat up, and at the same time, the upper and lower temperature measuring control elements start to test and control the heating temperature of the upper and lower heating elements. After inserting the short cigarette, only the upper section 19-1 of the cigarette holding cavity where the short cigarette is located is temperature measured and controlled. After inserting the long cigarette, both the upper and lower sections of the cigarette holding cavity 19 where the long cigarette is located are temperature measured and controlled. Therefore, the heating and temperature control methods are more flexible, avoiding heat waste.

5. This smoking device can heat not only long cigarettes but also short cigarettes. To smoke cigarettes of different lengths, you only need to turn the push cover to match cigarettes of different lengths, and start the corresponding heating program at the same time to heat and smoke, thereby achieving the purpose of compatible circumferential heating for long and short cigarettes.

BRIEF DESCRIPTION OF THE DRAWINGS

Fig. 1 is a schematic diagram of the longitudinal cross-sectional structure of the circumferentially heated smoking device of Example 1, wherein the movable short cigarette limiting seat moves to a second position relative to the smoking device body.

Fig. 2 is a schematic diagram of the longitudinal cross-sectional structure of the circumferentially heated smoking device of Example 1, wherein the movable short cigarette limiting seat moves to a first position relative to the smoking device body.

3 is a schematic diagram of the longitudinal cross-sectional structure of the circumferentially heated smoking device in Example 2 after a long cigarette is inserted, wherein the movable short cigarette limiting seat moves to a second position relative to the smoking device body.

4 is a schematic diagram of the longitudinal cross-sectional structure of the circumferentially heated smoking device in Example 2 after a short cigarette is inserted, wherein the movable short cigarette limiting seat moves to a first position relative to the smoking device body.

List of reference numerals:

1. Short cigarette insertion port, 2. Push cover, 3. Casing, 4. Long cigarette switch, 5. Upper temperature measurement control element, 6. Main board, 7. Lower temperature measurement control element, 8. Long cigarette limit seat, 9. Battery, 10. Long cigarette insertion port, 11. Short cigarette switch, 12. Cigarette fixing seat, 13. Upper heating element, 14. Upper vacuum tube, 15. Movable short cigarette limit seat, 15-1. First air inlet hole, 15-2. Limit plate, 15-3. Vertical connecting plate, 16. Lower heating element, 17. Lower vacuum tube, 18. One-way valve, 19. Cigarette accommodating chamber, 19-1. Upper section of cigarette accommodating chamber, 19-2. Lower section of cigarette accommodating chamber, 19-3. Connecting section.

Detailed ways

The content of the present invention is further described below through specific implementation modes.

Example 1

As shown in Figures 1-2, Example 1 provides a circumferential heating smoking device that is compatible with long and short cigarettes, and the smoking device includes: a short cigarette insertion port 1, a push cover 2, a casing 3, a long cigarette switch 4, an upper temperature measuring control element 5, a main board 6, 7, a lower temperature measuring control element 7, a long cigarette limit seat 8, a battery 9, a long cigarette insertion port 10, a short cigarette switch 11, a cigarette fixing seat 12, an upper heating element 13, an upper vacuum tube 14, a movable short cigarette limit seat 15, a lower heating element 16, and a lower vacuum tube 17.

The smoking device also has a cigarette receiving chamber 19, which includes an upper section 19-1, a lower section 19-2 and a connecting section 19-3 therebetween. The cigarette holder 12 is disposed at the upper end of the cigarette receiving chamber 19 to fix the non-tobacco section of the inserted cigarette.

The upper heating element 13 is surrounded by the periphery of the upper section 19-1 of the cigarette holding chamber, and an upper vacuum tube 14 is arranged on the periphery of the upper heating element 13; the lower heating element 16 is surrounded by the periphery of the lower section 19-2 of the cigarette holding chamber, and there is a gap between the upper heating element 13 and the upper heating element 13, and the interior of the gap is the connecting section 19-3 of the cigarette holding chamber 19, and a lower vacuum tube 17 is arranged on the periphery of the lower heating element 16.

The movable short cigarette limit seat 15 is in the form of an L-shaped limit clamp, the upper part of which is integrally connected to the horizontal push cover 2 arranged on the outside of the casing 3, and the lower part is arranged inside the casing 3, including an integrally connected vertical connecting plate 15-3 and a horizontal limit plate 15-2.

The position of the horizontal limit plate 15-2 is set as:

When the movable short cigarette limiting seat 15 moves to the first position relative to the smoking device body, the limiting plate 15-2 is located in the gap between the upper heating element 13 and the lower heating element 16;

When the movable short cigarette limiting seat 15 moves to the second position relative to the smoking device body, the limiting plate 15 - 2 is located outside the gap between the upper heating element 13 and the lower heating element 16 .

The smoking article body may be considered as any component that is fixed in position relative to the housing of the smoking article.

Of course, the movable short cigarette limiting seat 15 can also be in other forms, as long as it includes a horizontal limiting plate 15-2 that can be moved left and right and can achieve the above functions.

The left and right movement of the movable short cigarette limiting seat 15 can be achieved by pushing the push cover 2 left and right. The limiting plate 15-2 has at least one first air inlet 15-1, and when the cigarette in the cigarette accommodating chamber 19 is inhaled, the cigarette accommodating chamber 19 is connected to the outside air.

The upper temperature measuring control element 5 includes a thermocouple disposed on the upper heating element 13 and a control component connected to the thermocouple. The upper temperature measuring control element 5 detects the heating temperature of the upper heating element 13 and controls the heating power of the upper heating element 13. The lower temperature measuring control element 7 includes a thermocouple disposed on the lower heating element 16 and a control component connected to the thermocouple. The lower temperature measuring control element 7 detects the heating temperature of the lower heating element 16 and controls the heating power of the lower heating element 16.

The push cover 2 is provided with a horizontally adjacent short cigarette insertion port 1 and a long cigarette insertion port 10 for smoking short cigarettes and long cigarettes respectively; and when the movable short cigarette limiting seat 15 moves to a first position relative to the smoking device body, the short cigarette insertion port 1 is located directly above the cigarette accommodating cavity 19; when the movable short cigarette limiting seat 15 moves to a second position relative to the smoking device body, the long cigarette insertion port 10 is located directly above the cigarette accommodating cavity 19.

The short cigarette switch 11 and the long cigarette switch 4 are fixed inside the smoking device, and their positions are designed as follows:

When the movable short cigarette limit seat 15 moves to a first position relative to the smoking device body, the first protrusion on one side of the vertical connecting plate 15-3 of the movable short cigarette limit seat 15 triggers the short cigarette switch 11; when the movable short cigarette limit seat 15 moves to a second position relative to the smoking device body, the second protrusion on the other side of the vertical connecting plate 15-3 of the movable short cigarette limit seat 15 triggers the long cigarette switch 4.

When the short cigarette switch 11 is triggered and the smoking device is started for heating, the control system of the smoking device controls the upper heating element 13 to start heating, and the lower heating element 16 does not start working. Accordingly, the upper temperature measuring control element 5 detects the heating temperature of the upper heating element 13 and controls the heating power, and the lower temperature measuring control element 7 does not start working. When the long cigarette switch 4 is triggered and the smoking device is started for heating, the control system of the smoking device controls the upper heating element 13 and the lower heating element 16 to start heating according to the set program. At the same time, the upper temperature measuring control element 5 and the lower temperature measuring control element 7 respectively detect the heating temperature of the upper heating element 13 and the lower heating element 16 and control the heating power.

The smoking utensil also includes: a long cigarette limiting seat 8, which is arranged at the lower end of the cigarette accommodating cavity 19, and is a cylindrical hollow tube structure, with the upper end abutting against the lower end of the cigarette accommodating cavity 19, and the outer wall having a protrusion, which supports the lower vacuum tube 17.

The lower end of the long cigarette stopper 8 is a one-way valve 18 disposed on the smoking device housing 3. When inhaling, the one-way valve 18 opens toward the inside of the smoking device. When inhaling, the outside air enters the cigarette accommodating chamber 19 through the one-way valve 18 and the hollow structure of the hollow tube of the long cigarette stopper 8 in sequence.

The length of the cigarette accommodating chamber 19 is 60 mm, and the length of the upper section 19-1 of the cigarette accommodating chamber is 30 mm. The structures and positional relationships of other components are conventional designs.

Example 2

Embodiment 2 provides a method for using the circumferential heating smoking device described in Embodiment 1, which comprises the following steps:

To smoke a long cigarette:

As shown in Figure 3, the push cover 2 is pushed to the left so that the movable short cigarette limit seat 15 moves to the second position relative to the smoking device body, then the limit plate 15-2 is located outside the gap between the upper heating element 13 and the lower heating element 16, and the push cover 2 or the movable short cigarette limit seat 15 triggers the long cigarette switch 4. At this time, the long cigarette is inserted into the cigarette accommodating cavity 19 from the long cigarette insertion port 10 to start the smoking device for heating. The long cigarette switch 4 transmits a signal to the control system on the smoking device main board 6. The control system controls the upper heating element 13 and the lower heating element 16 to start the heating work according to the set program according to another set program, and preheats and bakes the long cigarette. After the preheating and baking is completed for a certain period of time, the main board 6 will give a corresponding prompt that it can be smoked. In order to ensure the smoking taste, the upper temperature measuring control element 5 and the lower temperature measuring control element 7 respectively detect the heating temperature of the upper heating element 13 and the lower heating element 16 and control the heating power for temperature control.

To smoke a short cigarette:

As shown in Figure 4, the push cover 2 is pushed to the right so that the push cover 2 drives the movable short cigarette limit seat 15 to move to the first position relative to the smoking device body, then the limit plate 15-2 is located in the gap between the upper heating element 13 and the lower heating element 16, and the push cover 2 or the movable short cigarette limit seat 15 triggers the short cigarette switch 11. At this time, the short cigarette is inserted from the short cigarette insertion port 1 into the upper section 19-1 of the cigarette accommodating chamber to start the smoking device for heating. The short cigarette switch 11 transmits a signal to the smoking device control system, and the control system controls the upper heating element 13 to start the heating work according to the set program, and the lower heating element 16 does not start working. The upper heating element 13 preheats and bakes the short cigarette. After the preheating and baking is completed within a certain period of time, the main board 6 will give a corresponding prompt that it can be smoked. In order to ensure the smoking taste, the upper temperature measuring control element 5 detects the heating temperature of the upper heating element 13 and controls the heating power for temperature control, and the lower temperature measuring control element 7 does not start working.

The above is only a specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art who is familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed by the present invention, which should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the claims.

Claims (5)

1. A circumferentially heated smoking device compatible with long and short cigarettes, characterized in that the smoking device comprises: A cigarette accommodating chamber (19), comprising an upper cigarette accommodating chamber section (19-1), a lower cigarette accommodating chamber section (19-2), and a connecting section (19-3) therebetween; An upper heating element (13) which surrounds the periphery of the upper section (19-1) of the cigarette receiving chamber; a lower heating element (16) which surrounds the periphery of the lower section (19-2) of the cigarette receiving chamber and has a gap with the upper heating element (13), wherein the interior of the gap is the connecting section (19-3) of the cigarette receiving chamber (19); A movable short cigarette limiting seat (15), comprising a limiting plate (15-2), wherein when the movable short cigarette limiting seat (15) moves to a first position relative to the smoking device body, the limiting plate (15-2) is located in the gap between the upper heating element (13) and the lower heating element (16); When the movable short cigarette limiting seat (15) moves to a second position relative to the smoking device body, the limiting plate (15-2) is located outside the gap between the upper heating element (13) and the lower heating element (16); The smoking device also includes: Housing (3), A push cover (2) which is arranged outside the housing (3) and connected to the movable short cigarette limiting seat (15); The limiting plate (15-2) is provided with at least one first air inlet hole (15-1), and when a cigarette in the cigarette accommodating chamber (19) is inhaled, the cigarette accommodating chamber (19) is connected to the outside air; The smoking device also includes: An upper temperature measuring control element (5) for detecting the heating temperature of the upper heating element (13) and controlling the heating power of the upper heating element (13); A lower temperature measuring control element (7) for detecting the heating temperature of the lower heating element (16) and controlling the heating power of the lower heating element (16); The smoking set is also provided with: A short cigarette switch (11), when the short cigarette switch (11) is triggered and the smoking device is started for heating, the control system of the smoking device controls the upper heating element (13) to start heating, and the lower heating element (16) does not start working, and accordingly, the upper temperature measuring control element (5) detects the heating temperature of the upper heating element (13) and controls the heating power, and the lower temperature measuring control element (7) does not start working; A long cigarette switch (4), when the long cigarette switch (4) is triggered, the smoking device is started to heat, and the control system of the smoking device controls the upper heating element (13) and the lower heating element (16) to start the heating work according to a set program, and at the same time, the upper temperature measuring control element (5) and the lower temperature measuring control element (7) respectively detect the heating temperature of the upper heating element (13) and the lower heating element (16) and control the heating power; The positions of the short cigarette switch (11) and the long cigarette switch (4) are designed as follows: When the movable short cigarette limiting seat (15) moves to a first position relative to the smoking device body, the push cover (2) or the movable short cigarette limiting seat (15) triggers the short cigarette switch (11); When the movable short cigarette limiting seat (15) moves to the second position relative to the smoking device body, the push cover (2) or the movable short cigarette limiting seat (15) triggers the long cigarette switch (4). 2. The circumferentially heated smoking device according to claim 1, characterized in that the push cover (2) is provided with a short cigarette insertion port (1) and a long cigarette insertion port (10), for smoking short cigarettes and long cigarettes respectively; When the movable short cigarette limiting seat (15) moves to a first position relative to the smoking device body, the short cigarette insertion opening (1) is located directly above the cigarette accommodating cavity (19); When the movable short cigarette limiting seat (15) moves to the second position relative to the smoking device body, the long cigarette insertion opening (10) is located directly above the cigarette accommodating cavity (19). 3. The circumferentially heated smoking article according to claim 1 is characterized in that the smoking article further comprises: a long cigarette limiting seat (8), which is arranged at the lower end of the cigarette accommodating cavity (19), and the upper end portion at least partially abuts against the lower end of the cigarette accommodating cavity (19). 4. The circumferentially heated smoking device according to claim 1, characterized in that an upper vacuum tube (14) is disposed on the periphery of the upper heating element (13), and a lower vacuum tube (17) is disposed on the periphery of the lower heating element (16). 5. The method for using the heated smoking device according to any one of claims 1 to 4, characterized in that it comprises the following steps: The push cover (2) is pushed to the left or right to make the movable short cigarette limit seat (15) move to the first position relative to the main body of the smoking device, and then the limit plate (15-2) is located in the gap between the upper heating element (13) and the lower heating element (16), and the push cover (2) or the movable short cigarette limit seat (15) triggers the short cigarette switch (11). At this time, a short cigarette is inserted from the short cigarette insertion port (1) into the upper section (19-1) of the cigarette accommodating chamber, and the smoking device is started for heating. The control system of the smoking device controls the upper heating element (13) to start the heating operation, and the lower heating element (16) does not start the operation. Accordingly, the upper temperature measuring control element (5) detects the heating temperature of the upper heating element (13) and controls the heating power, and the lower temperature measuring control element (7) does not start the operation. The push cover (2) is pushed to the right or left so that the movable short cigarette limit seat (15) moves to the second position relative to the main body of the smoking device, and then the limit plate (15-2) is located outside the gap between the upper heating element (13) and the lower heating element (16). The push cover (2) or the movable short cigarette limit seat (15) triggers the long cigarette switch (4). At this time, a long cigarette is inserted from the long cigarette insertion port (10) into the cigarette accommodating cavity (19), and the smoking device is started for heating. The control system of the smoking device controls the upper heating element (13) and the lower heating element (16) to start the heating work according to the set program. At the same time, the upper temperature measuring control element (5) and the lower temperature measuring control element (7) respectively detect the heating temperature of the upper heating element (13) and the lower heating element (16) and control the heating power.