A smoking article

Abstract

The application provides a smoking set, which comprises a heating cylinder, a heating cavity extending upward and having an opening for inserting a cigarette, the heating cylinder having a first through hole area and a second through hole area, the first through hole area being farther from the bottom of the heating cylinder than the second through hole area, the first through hole area being provided with at least one first overheating hole, and the second through hole area being provided with at least one second overheating hole; a heat conducting member sleeved on the heating cylinder; a combustion cavity below the heating cylinder; a feeding structure for feeding combustible medium to the combustion cavity; an igniter for igniting the combustible medium in the combustion cavity; the combustion cavity, the heat conducting member, the first overheating hole or the second overheating hole, and the heating cavity sequentially communicating to form an airflow circulation channel; and the airflow entering the heating cavity through the first overheating hole is greater than the airflow entering the heating cavity through the second overheating hole per unit time. The cigarette provided by the application can realize rapid and uniform heating of the cigarette in the heating cavity.

Description

Technical Field

[0001] This invention relates to the field of heating device structure technology, and in particular to a gas-fired heating non-combustible smoke appliance. Background Technology

[0002] The mainstream heating methods for existing heated tobacco products mainly include intermediate heating, which involves inserting a needle or plate into the cigarette for heating, and circumferential heating, where a heating element on the heating cup provides the heat source. However, both methods suffer from uneven heating. Intermediate heating is prone to causing the heating needle or plate to break during insertion and removal, affecting usability. Furthermore, heating starts from the center of the cigarette and moves outwards, resulting in uneven heating with higher temperatures in the center and lower temperatures at the edges. Circumferential heating, on the other hand, results in higher temperatures at the periphery and lower temperatures in the center, leading to uneven heating during inhalation.

[0003] To address the issue of uneven heating, most existing smoking devices employ air heating, utilizing the rising airflow formed by the heated air to heat the cigarette. Specifically, these devices use gas-fired heating, where burning air heats the surrounding air, which then rises naturally into the heating chamber containing the cigarette. However, due to heat loss during the rising airflow and the decreasing heat distribution from bottom to top caused by gravity, uneven heating still exists in the vertical direction of the cigarette. Summary of the Invention

[0004] The purpose of this invention is to provide a smoking device that solves the problem of uneven heating of cigarettes in existing smoking devices.

[0005] This invention provides a smoking device, comprising:

[0006] A heating cylinder has a heating chamber that extends vertically and opens upward for inserting a cigarette. The heating cylinder has a first through-hole area and a second through-hole area. The first through-hole area is farther from the bottom of the heating cylinder than the second through-hole area. The first through-hole area is provided with at least one first overheating hole, and the second through-hole area is provided with at least one second overheating hole.

[0007] The heat-conducting component is in contact with the heating cylinder;

[0008] The combustion chamber is located below the heating cylinder.

[0009] A feeding structure is used to deliver a combustible medium into the combustion chamber;

[0010] An igniter is used to ignite the combustible medium in the combustion chamber;

[0011] The combustion chamber, the heat-conducting component, the first superheating hole or the second superheating hole, and the heating chamber are connected in sequence to form a heat flow channel;

[0012] Specifically, the airflow rate entering the heating chamber through the first superheating hole per unit time is greater than the airflow rate entering the heating chamber through the second superheating hole.

[0013] In one possible implementation, the total opening area of ​​the first superheated hole is greater than the total opening area of ​​the second superheated hole.

[0014] In one possible implementation, the total number of the first superheating holes is equal to the total number of the second superheating holes, the diameter of the first superheating holes is larger than the diameter of the second superheating holes, or the diameter of the first superheating holes is greater than or equal to the diameter of the second superheating holes, and the total number of the first superheating holes is greater than the total number of the second superheating holes.

[0015] In one possible implementation, a plurality of first superheating holes form multiple concentric rings along the periphery of the heating cylinder, the diameter of the first superheating holes increasing from the bottom to the top of the heating cylinder; and / or, a plurality of second superheating holes form multiple concentric rings along the periphery of the heating cylinder, the diameter of the second superheating holes increasing from the bottom to the top of the heating cylinder.

[0016] Wherein, the diameter of any of the first superheated holes is larger than the diameter of any of the second superheated holes.

[0017] In one possible implementation, a plurality of first superheating holes form multiple concentric rings along the periphery of the heating cylinder, wherein the diameter of the first superheating holes in each ring is the same, and the number of the first superheating holes in each ring increases in the direction from the bottom to the top of the heating cylinder; and / or, a plurality of second superheating holes form multiple concentric rings along the periphery of the heating cylinder, wherein the diameter of the second superheating holes in each ring is the same, and the number of the second superheating holes in each ring increases in the direction from the bottom to the top of the heating cylinder.

[0018] In one feasible manner, the heat-conducting element is made of foamed metal or foamed carbon.

[0019] In one possible implementation, the heat-conducting element has a plurality of heat-conducting holes, the diameter of which is smaller than that of any of the first overheating holes and any of the second overheating holes.

[0020] In one possible embodiment, the feeding structure has an inflation chamber and a storage chamber, the storage chamber being used to contain a combustible medium, a one-way valve connecting the inflation chamber and the combustion chamber, and a conduit connecting the inflation chamber and the storage chamber. When the inflation chamber is compressed, the one-way valve opens, and the combustible medium in the inflation chamber enters the combustion chamber through the one-way valve. When the inflation chamber is reset, the combustible medium in the storage chamber enters the inflation chamber through the conduit.

[0021] In one possible implementation, the feeding structure includes an inner gas chamber and an outer gas chamber, the inner gas chamber being placed inside the outer gas chamber and capable of moving up and down relative to the outer gas chamber, the filling chamber being formed between the outer gas chamber and the inner gas chamber, and the combustion chamber being formed inside the inner gas chamber.

[0022] The feeding structure also includes a driving member and an elastic member. The driving member is used to drive the inner layer of the air chamber to move downward. The elastic member is compressed when the inner layer of the air chamber moves downward and can drive the inner layer of the air chamber to reset after the external force disappears.

[0023] The amount of combustible medium entering the combustion chamber can be adjusted by regulating the amount of compression of the elastic element by the driving component of the feeding structure.

[0024] In one possible implementation, the drive includes a connecting portion connecting the inner layer of the air chamber and a pressing portion for pressing, wherein when the pressing portion is pressed, the connecting portion moves downward in communication with the inner layer of the air chamber.

[0025] The smoking device provided in this embodiment achieves a more uniform overall heating temperature by setting the first superheating hole in the first through-hole area farther from the bottom of the heating cylinder on the side wall of the heating cylinder to be larger or more than the second superheating hole in the second through-hole area closer to the bottom of the heating cylinder. This is because larger or more superheating holes allow more hot airflow, while smaller or fewer superheating holes allow less hot airflow. The bottom of the heating cylinder is close to the combustion chamber, thus requiring a higher heating temperature and smaller or fewer superheating holes. The upper part mainly relies on hot airflow for heat transfer and is far from the combustion chamber, thus requiring a lower heat transfer temperature and larger or more superheating holes. Furthermore, by... The heating cylinder is equipped with a heat-conducting component made of a material that facilitates rapid heat transfer, such as foamed metal or carbon foam. This allows for the rapid transfer of heat from the contact between the heat-conducting component and the heating cylinder, as well as the transfer of heat through the hot airflow via the superheating holes in the heating cylinder wall. This enables the cigarette placed inside the heating chamber to be heated uniformly and rapidly. Furthermore, a feeding structure including a drive component, an elastic component, a pressure regulating valve, and a one-way valve is used to regulate the amount and speed of the combustible medium entering the combustion chamber, thereby controlling the combustion speed of the cigarette and solving the problems of uneven heating, slow heating, and uncontrollable heating speed. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the structure of the smoking device in an embodiment of the present invention.

[0027] Figure 2 for Figure 1 A schematic diagram of the explosion structure.

[0028] Figure 3 for Figure 1 A frontal sectional view.

[0029] Figure 4 Bit Figure 2 A frontal view of the heating cylinder.

[0030] Figure 5 for Figure 2 A schematic diagram of the structure of the fire cover.

[0031] Figure 6 for Figure 2 A schematic diagram of the structure of the igniter, drive unit, elastic component, inner layer of the gas chamber, and outer layer of the gas chamber.

[0032] Figure 7 for Figure 6 A frontal view of the outer layer of the middle air chamber and the inner layer of the middle air chamber.

[0033] Figure 8 A schematic diagram of the structure of the inner layer of the air chamber.

[0034] Figure 9 This is a schematic diagram of the inner layer of the air chamber from below.

[0035] Figure 10 This is a schematic diagram of the structure of the outer layer of the air chamber viewed from below.

[0036] Figure 11 This is a top view of the outer layer of the air chamber.

[0037] In the picture:

[0038] Heating cylinder 10, heating chamber 101, first through hole area 102, second through hole area 103, first superheating hole 104, second superheating hole 105;

[0039] Heat-conducting component 20, heat-conducting hole 201;

[0040] Combustion chamber 30;

[0041] Feeding structure 40, air chamber 401, telescopic pipe 4011, storage chamber 402, pressure regulating valve 4021, one-way valve 403, conduit 404;

[0042] Inner layer of the air chamber 41, first through hole 411, fixing hole 412, piston rod 413;

[0043] 42, outer layer of air chamber; 421, second through hole; 422, first side hole; 423, mounting hole; 424, piston through hole; 425, pressure regulating chamber;

[0044] Drive component 43, connecting part 431, pressing part 432, elastic component 44;

[0045] Igniter 50, ignition needle 501, push switch 502, base 503;

[0046] Outer shell 60, cavity 601, second side hole 602;

[0047] Flame cap 70, vent hole 701, vent 702. Detailed Implementation

[0048] The specific embodiments of the present invention will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and are not intended to limit the scope of the invention.

[0049] The terms “first,” “second,” “third,” “fourth,” etc. (if present) in the specification and claims of this invention are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence.

[0050] The directional terms such as "up," "down," "left," "right," "front," "back," "top," and "bottom" (if present) used in the specification and claims of this invention are defined by the position of the structures in the drawings and the relative positions of the structures, and are only for the clarity and convenience of expressing the technical solution. It should be understood that the use of directional terms should not limit the scope of protection claimed by this invention.

[0051] like Figures 1 to 3 As shown, an embodiment of the present invention provides a smoking device, comprising:

[0052] The heating cylinder 10 has a heating chamber 101 that extends vertically and opens upward for inserting a cigarette. The heating cylinder 10 has a first through-hole area 102 and a second through-hole area 103. The first through-hole area 102 is farther from the bottom of the heating cylinder 10 than the second through-hole area 103. The first through-hole area 102 is provided with at least one first overheating hole 104, and the second through-hole area 103 is provided with at least one second overheating hole 105.

[0053] The heat-conducting component 20 is in contact with the heating cylinder 10;

[0054] The combustion chamber 30 is located below the heating cylinder 10.

[0055] The feeding structure 40 is used to supply combustible media to the combustion chamber 30;

[0056] Ignition device 50 is used to ignite the combustible medium in combustion chamber 30;

[0057] The combustion chamber 30, the heat-conducting component 20, the first superheating hole 104 or the second superheating hole 105, and the heating chamber 101 are connected in sequence to form an airflow channel.

[0058] Specifically, the airflow rate entering the heating chamber 101 through the first superheating hole 105 per unit time is greater than the airflow rate entering the heating chamber 101 through the second superheating hole 106.

[0059] In this embodiment, after combustion in the combustion chamber 30, heat is transferred to the heat-conducting element 20. Then, part of the heat is transferred to the heating cylinder 1 through the heat-conducting element 20 to heat the cigarette in the heating chamber 101. The other part passes through the first superheating hole 106 and the second superheating hole 105 of the heating cylinder 10 in the form of hot airflow and enters the heating chamber 101 to heat the cigarette.

[0060] For contact heat transfer, because the bottom of the heating cylinder 10 is close to the combustion chamber 30, the heating temperature at the bottom of the heating cylinder 10 is higher, and the heating temperature of the heating cylinder 10 decreases as it goes higher.

[0061] Therefore, a first through-hole area 102 further away from the bottom of the heating cylinder 10 and a second through-hole area 103 further away from the bottom of the heating cylinder 10 are provided on the side wall of the heating cylinder. At least one first superheating hole 104 is provided in the first through-hole area 102 and at least one second superheating hole 105 is provided in the second through-hole area 103. Then, the air flow rate entering the heating chamber 101 through the first superheating hole 104 per unit time is greater than the air flow rate entering the heating chamber 101 through the second superheating hole 105. This makes the distribution of the amount of hot air flow inside the heating cylinder 10 increase from bottom to top, resulting in a temperature that is higher at the top and lower at the bottom.

[0062] In this configuration, the heating cylinder 10 is simultaneously subjected to heat transfer from contact and hot air. The former decreases in temperature from bottom to top, while the latter has a higher temperature at the top and a lower temperature at the bottom. The combination of these two factors makes the overall heating temperature inside the heating cylinder 10 tend to be uniform.

[0063] For heat transfer via hot air, by providing a first superheating hole 104 in the first through-hole area 102 further away from the bottom of the heating cylinder 10 on the side wall of the heating cylinder 10, which is larger or more than the second superheating hole 105 in the second through-hole area 103 closer to the bottom of the heating cylinder 10, the distribution of the amount of hot air flow inside the heating cylinder 10 increases from bottom to top, resulting in a temperature that is higher at the top and lower at the bottom.

[0064] In this configuration, the heating cylinder 10 is simultaneously subjected to heat transfer from contact and hot air. The former decreases in temperature from bottom to top, while the latter has a higher temperature at the top and a lower temperature at the bottom. The combination of these two factors makes the overall heating temperature inside the heating cylinder 10 tend to be uniform.

[0065] In one implementation, the total opening area of ​​the first superheating hole is greater than the total opening area of ​​the second superheating hole.

[0066] Specifically, in this embodiment, the first through-hole area 102 and the second through-hole area 103 are arranged vertically at intervals on the outer wall of the heating cylinder 10. The first through-hole area 102 is farther from the bottom of the heating cylinder than the second through-hole area 103. By setting the first superheating hole 104 to have a larger total opening area than the second superheating hole 105, it is possible to make the airflow rate entering the heating chamber 101 through the first superheating hole 105 greater than the airflow rate entering the heating chamber 101 through the second superheating hole 106 per unit time.

[0067] The first through-hole area 102 and the second through-hole area 103 have the same height range boundary. The total opening area of ​​the first superheated hole 104 and the second superheated hole 105 is compared within the same height range to better illustrate the effect of the specific arrangement of the first superheated hole 104 and the second superheated hole 105 on improving the temperature distribution.

[0068] In one implementation, the total number of first superheating holes 104 is equal to the total number of second superheating holes 105, and the diameter of the first superheating holes 104 is larger than the diameter of the second superheating holes 105; or, the diameter of the first superheating holes 104 is greater than or equal to the diameter of the second superheating holes 105, and the total number of first superheating holes 104 is greater than the total number of second superheating holes 105.

[0069] In this embodiment, the condition that the total opening area of ​​the first superheating hole is greater than the total opening area of ​​the second superheating hole can also be satisfied. When there are multiple first superheating holes 104 and multiple second superheating holes 105, the hole diameters of the multiple first superheating holes 104 can be equal or unequal. Similarly, the hole diameters of the multiple second superheating holes 105 can be equal or unequal. When the diameters of the multiple first superheating holes 104 are equal and the diameters of the multiple second superheating holes 105 are equal, since the total number of first superheating holes 104 is equal to the total number of second superheating holes 105, and the diameter of the first superheating holes 104 is larger than the diameter of the second superheating holes 105, it is easy to conclude that the total open area of ​​the first superheating holes 104 is greater than the total open area of ​​the second superheating holes 105. When the diameters of the multiple first superheating holes 104 are not equal and the diameters of the multiple second superheating holes 105 are not equal, as long as the diameter of any first superheating hole 104 is greater than the diameter of any second superheating hole 105, it can be guaranteed that the total number of first superheating holes 104 is equal to the total number of second superheating holes 105, and the total open area of ​​the first superheating holes 104 is greater than the total open area of ​​the second superheating holes 105.

[0070] Furthermore, as one implementation method, such as Figure 2 and Figure 4As shown, a plurality of first superheating holes 104 form multiple concentric rings along the periphery of the heating cylinder 10, and the diameter of the first superheating holes 104 increases in the direction from the bottom of the heating cylinder 10 to the top of the heating cylinder 10; and / or, a plurality of second superheating holes 105 form multiple concentric rings along the periphery of the heating cylinder 10, and the diameter of the second superheating holes 105 increases in the direction from the bottom of the heating cylinder 10 to the top of the heating cylinder 10;

[0071] The diameter of any first superheated hole 104 is larger than the diameter of any second superheated hole 105.

[0072] In this embodiment, the number of first superheating holes 104 and the number of second superheating holes 105 in each layer are not limited, but the premise is that the total opening area of ​​the first superheating holes 104 is greater than the total opening area of ​​the second superheating holes 105.

[0073] Specifically, as one implementation method of this embodiment, such as Figure 4 As shown, within the first through-hole area 102, the first superheating hole 104 has three concentric rings, and within the second through-hole area 103, the second superheating hole 105 has four concentric rings. The number of first superheating holes 104 and second superheating holes 105 in each concentric ring is exactly the same, and the hole diameter increases from the bottom to the top of the heating cylinder 10. The diameter of the first superheating hole 104 is larger than the diameter of the second superheating hole 105 to ensure that the total opening area of ​​the first superheating holes 104 is greater than the total opening area of ​​the second superheating holes 105. In one embodiment, the diameter of the first superheating hole 104 is greater than or equal to the diameter of the second superheating hole 105, and the total number of first superheating holes 104 is greater than the total number of second superheating holes 105. When the total number of first superheating holes 104 is greater than the total number of second superheating holes 105, the diameter of the first superheating holes 104 is greater than or equal to the diameter of the second superheating holes 105. This ensures that the total open area of ​​the first superheating holes 104 is greater than that of the second superheating holes 105. As a result, the amount of hot air entering the heating cylinder from the first through-hole area 102 and / or the second through-hole area 103 increases from bottom to top, thereby further improving the overall heating temperature uniformity of the heating cylinder 10.

[0074] In one embodiment, a plurality of first superheating holes 104 form multiple concentric rings along the periphery of the heating cylinder, the diameter of the first superheating holes 104 in each ring being the same, and the number of the first superheating holes 104 in each ring increasing in the direction from the bottom to the top of the heating cylinder 10; and / or, a plurality of second superheating holes 105 form multiple concentric rings along the periphery of the heating cylinder 10, the diameter of the second superheating holes 105 in each ring being the same, and the number of the second superheating holes 105 in each ring increasing in the direction from the bottom to the top of the heating cylinder 10.

[0075] The configuration in this embodiment also ensures that the total opening area of ​​the first superheating hole 104 is greater than that of the second superheating hole 105. This configuration makes the amount of hot air entering the heating cylinder from the first through hole area 102 and / or the second through hole area 103 increase from bottom to top, thereby further improving the overall heating temperature uniformity of the heating cylinder 10.

[0076] In other cases, the number distribution and aperture setting of the first superheating hole 104 and the second superheating hole 105 can also be done in other ways, as long as the total opening area of ​​all the first superheating holes 104 is greater than the total opening area of ​​all the second superheating holes 105. On this basis, the distribution of the first superheating holes 104 and the second superheating holes 105 can be optimized.

[0077] In this embodiment, the heating cylinder 10 is preferably made of copper, aluminum or their metal alloys or porous silicon, or thermally conductive ceramic with added thermally conductive fibers. The fibers can be carbon fibers, and the content of copper, aluminum, or aluminum nitride fibers is less than 30%. When ceramic is selected as the matrix, it can be aluminum nitride, aluminum oxide, aluminum nitride, or stainless steel.

[0078] like Figure 3 As shown, in one embodiment, the heat-conducting component 20 includes a cylinder and a sealing plate. The cylinder is sleeved on the outside of the heating cylinder 10, and the sealing plate is connected to the lower surface of the cylinder.

[0079] Specifically, by providing a heat-conducting element 20 fitted onto the body and lower surface of the heating cylinder 10, when hot air is transferred to the heat-conducting element 20, the good thermal conductivity of the heat-conducting element 20 can be utilized to quickly transfer heat to the heating cylinder 10 through contact heat transfer. In one embodiment, the heat-conducting element 20 is made of foamed metal or foamed carbon.

[0080] Specifically, the foam metal includes titanium, magnesium, chromium, copper, cobalt, chromium, aluminum, titanium, zirconium, hafnium, niobium, molybdenum, tantalum, tungsten, tin, gallium, manganese, nickel, and iron metals or alloys thereof. Specifically, both the foam metal and foam carbon have high thermal conductivity, and the heat-conducting element 20 made of foam metal or foam carbon can rapidly conduct heat to the heating cylinder 10.

[0081] By providing a heat-conducting element 20 made of a material that facilitates rapid heat transfer, such as foamed metal or carbon foam, outside the heating cylinder 10, the cigarette placed inside the heating chamber 101 of the heating cylinder 10 is heated uniformly and rapidly by utilizing the heat rapidly transferred from the contact between the heat-conducting element 20 and the heating cylinder 10, and the heat transferred through the hot airflow from the first superheating hole 104 and / or the second superheating hole 105 on the cylinder wall of the heating cylinder 10. Figure 2 As shown, in one embodiment, the heat-conducting component 20 has a plurality of heat-conducting holes 201, the diameter of which is smaller than any first heat-excessing hole 106 and any second heat-excessing hole 105.

[0082] Specifically, after the heat-conducting component 20 is heated, the hot airflow is transferred from the heat-conducting hole 201 to the heating cylinder 10, and then penetrates into the heating chamber 30 from the first superheating hole 104 and the second superheating hole 105 of the heating cylinder 10. When the diameter of the heat-conducting hole 201 is smaller than either the first superheating hole 106 or either the second superheating hole 105, the hot airflow can more easily and more easily enter the cigarette in the heating cylinder 10.

[0083] like Figures 1 to 3 As shown, in one embodiment, the smoking device also includes a housing 60, a heating cylinder 10, a heat-conducting component 20, a combustion chamber 30, and a feeding structure 40, all located inside the housing 60. The housing 60 and the heating cylinder 10 enclose a cavity 601, and the combustion chamber 30 and the cavity 601 are connected.

[0084] Specifically, part of the hot gas heated by the combustion chamber 30 is directly transferred to the heating cylinder 10 through the bottom of the heat-conducting element 20, and the other part can penetrate into the heating cylinder 10 through the heat-conducting hole 201 on the side wall of the heat-conducting element 20 via the cavity 601, and then enter the heating chamber 30 through the first superheating hole 104 and the second superheating hole 105.

[0085] like Figure 3 As shown, in one embodiment, the feeding structure 40 has an inflation chamber 401 and a storage chamber 402. The storage chamber 402 is used to contain the combustible medium. A one-way valve 403 is connected between the inflation chamber 401 and the combustion chamber 30. A conduit 404 connects the inflation chamber 401 and the storage chamber 402. When the inflation chamber 401 is compressed, the one-way valve 403 opens, and the combustible medium in the inflation chamber 401 flows into the combustion chamber 30 through the one-way valve 403. When the inflation chamber 401 is reset, the combustible medium in the storage chamber 402 enters the inflation chamber 401 through the conduit 404.

[0086] The flammable medium in the storage chamber 402 includes butane, isobutane, propane, coal gas, fuel gas, or a mixture thereof.

[0087] Specifically, only when the inflation chamber 401 is compressed can the increased air pressure inside the inflation chamber 401 open the one-way valve 403, allowing the combustible medium in the inflation chamber 401 to flow into the combustion chamber 30 via the one-way valve 403. The one-way valve 403 also ensures that the combustible medium does not flow back. When the inflation chamber 401 is reset, the internal space of the inflation chamber 401 increases, making its pressure relatively lower than that of the storage chamber 402. This lower pressure drives the combustible medium in the storage chamber 402 into the inflation chamber 401 via the conduit 404, thus replenishing the combustible medium in the inflation chamber 401.

[0088] In this embodiment, the upper end of the conduit 404 is connected to the bottom of the inflation chamber 401, and the lower end is close to the bottom of the storage chamber 402. The conduit 404's proximity to the bottom of the storage chamber 402 ensures that the lower end of the conduit 404 is below the surface of the liquefied flammable medium. This increases the difficulty for gas from the inflation chamber 401 to enter the storage chamber 402 through the conduit 404, ensuring that under compression, the flammable medium within the inflation chamber 401 enters the combustion chamber 30 through the one-way valve 403. Furthermore, the low-pressure adsorption in the inflation chamber 401 allows the flammable medium from the storage chamber 402 to enter the inflation chamber 401 via the conduit 404.

[0089] like Figures 8 to 11 As shown, the one-way valve 403 is fixedly installed through the first through hole 411 at the bottom of the inner layer 41 of the air chamber, and the conduit 404 is fixedly installed through the second through hole 421 at the bottom of the outer layer 42 of the air chamber.

[0090] like Figure 2 , 3 As shown, in one embodiment, the feeding structure 40 includes an inner gas chamber 41 and an outer gas chamber 42. The inner gas chamber 41 is placed inside the outer gas chamber 42 and can move up and down relative to the outer gas chamber 42. An air filling chamber 401 is formed between the outer gas chamber 42 and the inner gas chamber 41, and a combustion chamber 30 is formed inside the inner gas chamber 41.

[0091] The feeding structure 40 also includes a driving member 43 and an elastic member 44. The driving member 43 is used to drive the inner layer 41 of the air chamber to move downward, and the elastic member 44 is compressed when the inner layer 41 of the air chamber moves downward and can drive the inner layer 41 of the air chamber to reset after the external force disappears.

[0092] The amount of combustible medium entering the combustion chamber can be adjusted by regulating the compression of the elastic element by the driving member of the feeding structure. In this embodiment, the compression of the inflation chamber 401 is achieved by the driving member 43 pushing the inner layer 41 of the air chamber downward. The resetting (upward movement) of the inflation chamber 401 is achieved by the elastic restoring force of the elastic element 44 pushing the inner layer 41 of the air chamber upward. In other embodiments, the compression and resetting of the inflation chamber 401 can also be achieved by the driver driving the inner layer 41 of the air chamber to move up and down, or the inner layer 41 of the air chamber can be set as an elastic structure, driven by the driver to move downward to achieve the compression of the inflation chamber 401, and after the thrust of the driver disappears, it returns to the initial state under the action of the elastic restoring force of the inner layer 41 itself.

[0093] It should be noted that the compression amount of the elastic element determines the compression amount of the inflation chamber 401. The compression amount of the inflation chamber 401 is equivalent to the amount of combustible medium entering the combustion chamber. By adjusting the compression amount of the elastic element by the driving component of the feeding structure, the amount of combustible medium entering the combustion chamber can be adjusted.

[0094] Specifically, such as Figure 6 , 7 As shown in Figure 10, the elastic element 44 includes two springs respectively disposed on both sides of the outer wall of the outer layer 42. The two ends of each spring are respectively connected to the outer layer 42 and the inner layer 41, and are fixed by a protrusion provided on the side wall of the outer layer 42 and a protruding member 441 extending through the first side hole 422 of the outer layer 41. Specifically, as shown... Figure 6 As shown, the driving component 43 includes a pressure ring, an annular piece sleeved on the outer wall of the outer layer 42 of the air chamber, and the elastic component 44 includes two springs respectively disposed on both sides of the outer wall of the outer layer 42 of the air chamber.

[0095] like Figure 6 As shown, in one embodiment, the driving member 43 includes a connecting portion 431 connecting to the inner layer 41 of the air chamber and a pressing portion 432 for pressing. When the pressing portion 432 is pressed, the connecting portion 431 moves downward through the inner layer 41 of the air chamber. Figure 1 The pressing part 432 extends through the second side hole 602 provided in the outer shell 60, so that a person can press the pressing part 432 from outside the outer shell. After pressing the pressing part 432, the driving member 43 drives the elastic member 44 to press down and the inner layer 41 of the air chamber to move downward.

[0096] In this embodiment, the driving component 43 is a manually operated component, which pushes the inner layer 41 of the air chamber by manual pressing.

[0097] In another implementation, the drive member 43 is equipped with an electric drive. Specifically, the drive member 43 pushes the inner layer 41 of the air chamber using a cylinder, a motor, or other electrically driven means.

[0098] like Figure 3 As shown, in one embodiment, the igniter 50 is triggered when the pressing part 432 is pressed.

[0099] Specifically, the igniter 50 includes a push switch 502 and an ignition needle 501. When the push switch 502 is pressed, the igniter 50 opens and the ignition needle 501 discharges to ignite the combustible medium in the combustion chamber 30.

[0100] The push-button switch 502 is located below the push-button part 432. When the push-button part 432 is pressed, the push-button switch 502 is also pressed, thereby triggering the igniter 50. This setting enables ignition and gas charging (gas charging chamber 401 supplies gas to combustion chamber 30) to proceed simultaneously, which helps to improve the success rate of ignition and enhance the user experience.

[0101] like Figure 3 As shown, in one embodiment, the storage cavity 402 is also provided with a pressure regulating valve 4021 for regulating air pressure.

[0102] Specifically, such as Figures 7 to 11As shown, the pressure regulating valve 4021 is installed in the mounting holes 423 provided on both sides of the bottom of the outer layer 42 of the air chamber. The piston rod 413 is vertically fixed in the fixing holes 412 provided on both sides of the bottom of the inner layer 41 of the air chamber. The piston rod 413 extends into the piston through holes 424 provided on both sides of the outer layer 42 of the air chamber, which are the same size as the piston rod 413. The piston through holes 424 penetrate into the mounting holes 423. The bottom of the piston rod 413, the inside of the piston through holes 424, and the pressure regulating valve 4021 form a pressure regulating chamber 425.

[0103] Specifically, such as Figure 3 and Figure 7 As shown, the piston rod 215 moves downward with the inner layer 41 of the gas chamber and compresses the air in the pressure regulating chamber 425, increasing the air pressure in the pressure regulating chamber 425. This increases the air pressure in the storage chamber 402 through the pressure regulating valve 4021, and forces the combustible medium in the storage chamber 402 through the conduit 404 to the charging chamber 401 and further to the combustion chamber 30. When the elastic element 44 causes the piston rod 215 to move upward with the inner layer 41 of the gas chamber, the air pressure in the storage chamber 402 also drops. In this way, the air pressure in the storage chamber 402 can be controlled by the pressure regulating valve 4021 to maintain within a safe and controllable operating range.

[0104] Specifically, the more the piston rod 215 moves downward, the greater the amount of compressed air, the greater the air pressure in the storage chamber 402, and the faster and more combustible medium enters the combustion chamber 30.

[0105] like Figure 3 and Figure 7 As shown, in one embodiment, the inflation chamber 401 is provided with a telescopic tube 4011, which is used to separate the inner layer 41 and the outer layer 42 of the air chamber. The telescopic tube 4011 serves to both reset the inner layer 41 and support the inner layer 41 and prevent collision between the inner layer 41 and the outer layer 42.

[0106] like Figures 2 to 5 As shown, in one embodiment, a flame cap 70 is provided between the inner layer 41 of the gas chamber and the heat conductor 20, and the ignition needle 501 of the igniter 50 is located close to the flame cap 70. The flame cap 70 and the heat conductor 20 are detachably connected.

[0107] Among them, such as Figure 5 As shown, the flame cap 70 is provided with multiple vent holes 701 and multiple vent ports 702. By replacing the flame cap 70 with flame caps 701 and vent ports 702 of different diameters, the heat intensity of heating the heating cylinder 10 can be changed, thereby adjusting the heat intensity of baking the cigarette in the heating chamber 101.

[0108] Specifically, such as Figure 6As shown, the igniter 50 is provided with a base 503, from which an ignition needle 501 extends. When the press switch 502 of the igniter 50 is pressed, the ignition needle 501 generates an electric spark through the internal components of the base 503, thereby igniting the combustible medium in the combustion chamber 30.

[0109] The smoking device provided in this embodiment of the invention can adjust the amount and speed of combustible medium entering the combustion chamber 30 by controlling the pressing force of the pressing drive part 43. Then, the igniter 50 generates an electric spark in the combustion chamber 30 to ignite the combustible medium. After the combustible medium burns, the heat is transferred to the heat-conducting part 20 after being adjusted by the flame cap 70. Then, it is quickly transferred to the heating cylinder 10 through the heat-conducting part 20 and the heat-conducting hole 201. It is then evenly transferred into the heating chamber 101 through the first superheating hole 104 and the second superheating hole 105 provided in the heating cylinder 10, so as to achieve the purpose of uniformly and quickly heating the cigarette placed in the heating chamber 101.

[0110] The smoking device provided in this embodiment makes the overall heating temperature of the heating cylinder 10 uniform by setting the first superheating hole 104 of the first through hole area 102, which is farther from the bottom of the heating cylinder 10, to be larger or more than the second superheating hole 105 of the second through hole area 103, which is closer to the bottom of the heating cylinder 10. This is because larger or more superheating holes allow more hot air to enter, while smaller or fewer superheating holes allow less hot air to enter. The bottom of the heating cylinder 10 is close to the combustion chamber 30, so the heating temperature is high and requires smaller or fewer second superheating holes 105. The upper part mainly relies on hot air flow for heat transfer and is far from the combustion chamber 30, so the heat transfer temperature is low and requires larger or more first superheating holes 104. This ensures that the overall heating temperature inside the heating cylinder is uniform.

[0111] Furthermore, by providing a heat-conducting element 20 made of a material such as foamed metal or carbon foam that facilitates rapid heat transfer outside the heating cylinder 10, the cigarette placed inside the heating chamber 101 of the heating cylinder 10 is heated uniformly and rapidly by utilizing the heat rapidly transferred from the contact between the heat-conducting element 20 and the heating cylinder 10 and the heat transferred through the hot air flow from the first superheating hole 104 and / or the second superheating hole 105 on the cylinder wall of the heating cylinder 10.

[0112] In addition, by setting a feeding structure 40 including a driving component 43, an elastic component 44, a pressure regulating valve 4021, and a one-way valve 403, the amount and speed of combustible medium entering the combustion chamber 30 are regulated, thereby controlling the combustion speed of the cigarette and solving the problems of uneven heating, slow heating, and uncontrollable heating speed of the cigarette.

[0113] The above are merely specific embodiments of the present invention, but the scope of protection of the present invention is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in the present invention should be included within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the scope of the claims.

Claims

1. A smoking article, characterized by, include: A heating cylinder has a heating chamber that extends vertically and opens upward for inserting a cigarette. The heating cylinder has a first through-hole area and a second through-hole area. The first through-hole area is farther from the bottom of the heating cylinder than the second through-hole area. The first through-hole area is provided with at least one first overheating hole, and the second through-hole area is provided with at least one second overheating hole. The heat-conducting component is in contact with the heating cylinder; The combustion chamber is located below the heating cylinder. A feeding structure is used to deliver a combustible medium into the combustion chamber; An igniter is used to ignite the combustible medium in the combustion chamber; The combustion chamber, the heat-conducting component, the first superheating hole or the second superheating hole, and the heating chamber are connected in sequence to form a heat flow channel; Specifically, the airflow rate entering the heating chamber through the first superheating hole per unit time is greater than the airflow rate entering the heating chamber through the second superheating hole.

2. The smoking device as described in claim 1, wherein the total opening area of ​​the first superheating hole is greater than the total opening area of ​​the second superheating hole.

3. The smoking set of claim 1, wherein The total number of the first superheating holes is equal to the total number of the second superheating holes, and the diameter of the first superheating hole is larger than the diameter of the second superheating hole; or, the diameter of the first superheating hole is greater than or equal to the diameter of the second superheating hole, and the total number of the first superheating holes is greater than the total number of the second superheating holes.

4. The smoking set of claim 2, wherein A plurality of first superheating holes form multiple concentric rings along the periphery of the heating cylinder, the diameter of the first superheating holes increasing from the bottom to the top of the heating cylinder; and / or, a plurality of second superheating holes form multiple concentric rings along the periphery of the heating cylinder, the diameter of the second superheating holes increasing from the bottom to the top of the heating cylinder. Wherein, the diameter of any of the first superheated holes is larger than the diameter of any of the second superheated holes.

5. The smoking set of claim 2, wherein Multiple first superheating holes form multiple concentric rings along the periphery of the heating cylinder, with each ring having the same diameter for the first superheating holes, and the number of first superheating holes in each ring increasing from the bottom to the top of the heating cylinder; and / or, multiple second superheating holes form multiple concentric rings along the periphery of the heating cylinder, with each ring having the same diameter for the second superheating holes, and the number of second superheating holes in each ring increasing from the bottom to the top of the heating cylinder.

6. The smoking set of claim 1, wherein The heat-conducting element is made of foamed metal or foamed carbon.

7. The smoking set of claim 1, wherein The heat-conducting component has multiple heat-conducting holes, the diameter of which is smaller than that of any of the first overheating holes and any of the second overheating holes.

8. The smoking article of any one of claims 1 to 7, wherein, The feeding structure has an inflation chamber and a storage chamber. The storage chamber is used to contain a combustible medium. A one-way valve is connected between the inflation chamber and the combustion chamber. A conduit connects the inflation chamber and the storage chamber. When the inflation chamber is compressed, the one-way valve opens, and the combustible medium in the inflation chamber enters the combustion chamber through the one-way valve. When the inflation chamber is reset, the combustible medium in the storage chamber enters the inflation chamber through the conduit.

9. The smoking article of claim 8, wherein The feeding structure includes an inner gas chamber and an outer gas chamber. The inner gas chamber is placed inside the outer gas chamber and can move up and down relative to the outer gas chamber. The air filling chamber is formed between the outer gas chamber and the inner gas chamber, and the combustion chamber is formed inside the inner gas chamber. The feeding structure also includes a driving member and an elastic member. The driving member is used to drive the inner layer of the air chamber to move downward. The elastic member is compressed when the inner layer of the air chamber moves downward and can drive the inner layer of the air chamber to reset after the external force disappears. The amount of combustible medium entering the combustion chamber can be adjusted by regulating the amount of compression of the elastic element by the driving component of the feeding structure.

10. The smoking article of claim 9, wherein, The driving component includes a connecting part that connects to the inner layer of the air chamber and a pressing part that is pressed. When the pressing part is pressed, the connecting part moves downward through the inner layer of the air chamber.

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