CN218921628U - Heating non-burning smoking set - Google Patents

Abstract

The utility model provides a heating non-combustion smoking set which comprises a shell, a smoke holder, a base, a heating piece, a first sleeve and a second sleeve, wherein a spiral air inlet channel is arranged around the smoke holder, so that the path length of air inlet air flow is increased, the flowing time of the air inlet air flow in the spiral air inlet channel is prolonged, the air inlet air flow passing through the spiral air inlet channel is enabled to pass through a heat exchange mode, heat on a smoking set shell is effectively taken away, good heat dissipation is carried out on the smoking set shell, and the phenomenon that the smoking set shell has too high temperature is avoided. And be provided with thermal-insulated chamber between cigarette support and spiral inlet channel, avoid the cigarette to hold in the palm with heat direct transfer to spiral inlet channel, both can reduce the heat dissipation of the piece that generates heat in the cigarette support inner chamber, can avoid the air current that admits air in the spiral inlet channel to be heated to higher temperature again, further improve the air current that admits air carries out heat exchange radiating effect to the smoking set shell, prevent that smoking set shell temperature is too high.

Description

Heating non-burning smoking set

Technical Field

The utility model belongs to the technical field of simulated smoking, and particularly relates to a heating non-combustion smoking set.

Background

The existing heating non-combustion (HNB) type smoking set generally puts a cigarette in the heating non-combustion smoking set, and the cigarette is baked and heated by the high temperature generated by the heating element, so that the tobacco products in the cigarette generate smoke for users to simulate smoking. Currently, a heating non-combustion (HNB) type smoking set on the market generally forms a heat dissipation structure through an air inlet channel of the smoking set, and uses cold air entering the air inlet channel when a user smokes to dissipate heat of a shell of the smoking set.

However, because the air inlet channel of the smoking set generally has a shorter path length, and the air inlet flow flows in a straight path, it is difficult to quickly take away the heat on the smoking set housing, so that the heat dissipation effect of the smoking set housing is poor, and the phenomenon that the temperature of the smoking set housing is too high easily causes to influence the normal use of the smoking set.

Disclosure of Invention

Based on the above-mentioned problems existing in the prior art, an object of the present utility model is to provide a heating non-combustion smoking set with a heat insulation cavity and a spiral air inlet channel, which can prevent heat from being directly transferred to the air inlet channel, and increase the path length of air inlet flow, so as to perform good heat dissipation on the smoking set shell, and avoid the overhigh temperature of the smoking set shell.

In order to achieve the above purpose, the utility model adopts the following technical scheme: there is provided a heating non-combustible smoking article comprising:

the shell is provided with a containing cavity and a smoke inserting port communicated with the containing cavity;

the cigarette holder is arranged in the accommodating cavity and is provided with a cigarette holder inner cavity for accommodating cigarettes, the cigarette holder inner cavity is correspondingly arranged with the cigarette inserting port, so that the cigarettes can be inserted into the cigarette holder inner cavity through the cigarette inserting port, and the bottom of the cigarette holder is provided with an air inlet hole communicated with the cigarette holder inner cavity;

the base is arranged in the accommodating cavity and is positioned below the smoke holder;

the heating piece is arranged on the base, is inserted into the inner cavity of the cigarette holder through the air inlet hole and is used for baking and heating tobacco products in the cigarettes to generate smoke when the cigarettes are inserted into the accommodating cavity;

a first sleeve supported on the base and sleeved outside the smoke holder to form a heat insulation cavity in the first sleeve outside the smoke holder, a spiral fin surrounding the first sleeve arranged on the outer side wall of the first sleeve, and

the second sleeve is arranged in the accommodating cavity and sleeved on the outer side of the first sleeve, the inner side wall of the second sleeve is in contact with the spiral fins, so that a spiral air inlet channel is formed in the second sleeve at the outer parts of the first sleeve and the spiral fins, one end, close to the smoke inserting port, of the spiral air inlet channel is provided with an air flow inlet, one end, far away from the smoke inserting port, of the spiral air inlet channel is provided with an air flow outlet, the air flow outlet is communicated with the heat insulation cavity, and the heat insulation cavity is communicated with the air inlet.

Further, the heating non-combustion smoking set further comprises a honeycomb duct which is arranged between the first sleeve and the smoke holder and separates the heat insulation cavity to form a first heat insulation air passage and a second heat insulation air passage, the first end of the honeycomb duct is supported and fixed on the base, a vent hole which is communicated with the first heat insulation air passage and the second heat insulation air passage is arranged on the honeycomb duct, the first heat insulation air passage is communicated with the air inlet, and the second heat insulation air passage is communicated with the air flow outlet.

Further, the number of the vent holes is set to be a plurality, and the plurality of vent holes are distributed at equal intervals along the circumferential direction of the flow guide pipe.

Further, the longitudinal cross-sectional area of the spiral inlet passage gradually increases from an end near the air flow inlet to an end near the air flow outlet.

Further, an annular heat insulation gap is formed between the inner side wall of the second sleeve and the inner side wall of the shell.

Further, the smoke support is sleeved with an annular cover plate, and the annular cover plate is covered on a port of one end of the first sleeve, which is away from the base, so that the top end of the heat insulation cavity formed between the first sleeve and the smoke support is closed.

Further, the outer peripheral surface of the annular cover plate is convexly provided with a clamping protrusion along the radial direction of the annular cover plate, the corresponding port of the first sleeve is concavely provided with a clamping groove matched with the clamping protrusion in a clamping manner, and the annular cover plate can be positioned on the corresponding port of the first sleeve when the clamping protrusion is clamped in the clamping groove.

Further, the heating piece is a heating piece, and one end of the heating piece, which is positioned in the inner cavity of the cigarette holder, is provided with a puncture tip used for puncturing the cigarette so that the heating piece can be inserted into the cigarette.

Further, the heating non-combustion smoking set further comprises a power supply device for supplying power to the heating element, the power supply device is accommodated in the accommodating cavity, and the heating element is electrically connected with the power supply device.

Further, the casing includes bottom shell and the upper cover of detachably installing on the open-top of bottom shell that the bottom is sealed and open-top, the upper cover lid in when the open-top of bottom shell is gone up, the cavity of bottom shell with the cavity of upper cover can be defined out hold the chamber, the cigarette holds in the palm first sleeve pipe with the second sleeve pipe all is located in the cavity of upper cover, the base is fixed in the open-top of bottom shell, insert the cigarette mouth and set up in on the upper cover, insert the cigarette mouth with the air inlet intercommunication is for outside air to flow in through the air inlet spiral air inlet channel.

Compared with the prior art, the one or more technical schemes in the embodiment of the utility model have at least one of the following beneficial effects:

according to the heating non-combustion smoking set provided by the embodiment of the utility model, the spiral air inlet channel is arranged around the smoking support, so that the path length of the air inlet air flow is increased, the flowing time of the air inlet air flow in the spiral air inlet channel is prolonged, and the heat on the smoking set shell is effectively taken away in a heat exchange mode of the air inlet air flow passing through the spiral air inlet channel, so that the smoking set shell is well radiated, and the phenomenon of overhigh temperature of the smoking set shell is avoided. And be provided with thermal-insulated chamber between cigarette support and spiral inlet channel for the lateral wall that spiral inlet channel and cigarette held in the palm can not direct contact, thereby avoid the cigarette to hold in the palm with the direct transfer of heat to spiral inlet channel, both can reduce the heat dissipation that generates heat the piece in the cigarette holds in the palm the inner chamber, improve the heating efficiency of piece to the cigarette that generates heat, can avoid the air current that admits air in the spiral inlet channel to be heated to higher temperature again, further improve the air current that admits air carries out heat exchange radiating effect to the smoking set shell, prevent that smoking set shell temperature from being too high and influencing normal use.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the embodiments or the description of the prior art will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a schematic perspective view of a heating non-combustible smoking set according to an embodiment of the present utility model;

FIG. 2 is a bottom view of a heated non-combustible smoking article in accordance with an embodiment of the present utility model;

FIG. 3 is a schematic cross-sectional view of the structure of line A-A of FIG. 2;

FIG. 4 is a schematic view of the part of the portion A in FIG. 3;

FIG. 5 is a schematic cross-sectional view of the structure of line B-B in FIG. 2;

FIG. 6 is a schematic view of the part B in FIG. 5 in an enlarged view;

FIG. 7 is a schematic view of a first sleeve with spiral fins according to an embodiment of the present utility model;

fig. 8 is a schematic perspective view of a smoke holder according to an embodiment of the present utility model;

fig. 9 is another schematic perspective view of a smoke holder according to an embodiment of the present utility model;

fig. 10 is a schematic perspective view of a flow guiding tube according to an embodiment of the present utility model;

fig. 11 is an exploded view of a heated non-combustible smoking article provided in an embodiment of the present utility model.

Wherein, each reference sign in the figure:

1-a housing; 11-bottom case; 111-key holes; 12-an upper cover; 121-a smoke inlet; 13-a receiving cavity;

2-smoke holder; 21-a tobacco holder inner cavity; 22-an air inlet hole;

3-a base; 4-heating element; 41-piercing tip;

5-a first sleeve; 6-a second sleeve; 7-insulating chamber;

8-a power supply device; 81-cell; 82-cell support; 83-control panel; 84-press keys; 85-a charging interface;

9-spiral air inlet channel; 91-air inlet; 92-an air flow outlet;

10-helical fins; 20-a flow guiding pipe; 30-a first insulated airway;

40-a second insulated airway; 50-ventilation holes; 60-insulating gap;

70-an annular cover plate; 80-clamping convex; 90-clamping grooves; 100-cigarettes.

Detailed Description

In order to make the technical problems, technical schemes and beneficial effects to be solved more clear, the utility model is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model.

It will be understood that when an element is referred to as being "connected to" or "disposed on" another element, it can be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element.

In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

It is to be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are merely for convenience in describing and simplifying the description based on the orientation or positional relationship shown in the drawings, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus are not to be construed as limiting the utility model.

Reference throughout this specification to "one embodiment" or "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment is included in at least one embodiment of the present application. Thus, the appearances of the phrases "in one embodiment," "in some embodiments," or "in some embodiments" in various places throughout this specification are not all referring to the same embodiment. Furthermore, the particular features, structures, or characteristics may be combined in any suitable manner in one or more embodiments.

Referring to fig. 1 to 6, a heating non-combustible smoking set according to an embodiment of the utility model will be described. The heating non-combustion smoking set provided by the embodiment of the utility model comprises a shell 1, a smoke holder 2, a base 3, a heating piece 4, a first sleeve 5 and a second sleeve 6, wherein a containing cavity 13 is arranged in the shell 1, and a smoke inserting port 121 communicated with the containing cavity 13 is arranged on the shell 1. The tobacco support 2 is arranged in the accommodating cavity 13, the outline of the tobacco support 2 is approximately columnar, the tobacco support 2 is provided with a tobacco support inner cavity 21 with an opening facing the tobacco insertion port 121, the tobacco support inner cavity 21 is used for placing the tobacco support 100, and the tobacco support inner cavity 21 is correspondingly arranged with the tobacco insertion port 121, so that the tobacco support 100 can be inserted into the tobacco support inner cavity 21 through the tobacco insertion port 121. Referring to fig. 4 and 6 in combination, the base 3 is disposed in the accommodating cavity 13, the base 3 is disposed below the tobacco holder 2, the heating element 4 is mounted on the base 3, an air inlet hole 22 is disposed at the bottom of the tobacco holder 2 and is communicated with the tobacco holder cavity 21, and one end of the heating element 4 far away from the base 3 is inserted into the tobacco holder cavity 21 through the air inlet hole 22, so that when the tobacco 100 is inserted into the accommodating cavity 13, tobacco products in the tobacco 100 are heated by the heating element 4 to generate smoke. Referring to fig. 4 to 6, the bottom end of the first sleeve 5 is supported on the base 3, and the first sleeve 5 is sleeved on the outer side of the smoke holder 2, so that a portion (a first cavity between the inner side wall of the first sleeve 5 and the outer side wall of the smoke holder 2) of the first sleeve 5 outside the smoke holder 2 forms a heat insulation cavity 7. The second sleeve 6 is arranged in the accommodating cavity 13, the second sleeve 6 is sleeved on the outer side of the first sleeve 5, the spiral fin 10 surrounding the first sleeve 5 is arranged on the outer side wall of the first sleeve 5, the inner side wall of the second sleeve 6 is in contact with the spiral fin 10, so that a spiral air inlet channel 9 is formed in the second sleeve 6 at a part (except the spiral fin 10) except the first sleeve 5 and the spiral fin 10 in a second cavity formed between the inner side wall of the second sleeve 6 and the inner side wall of the first sleeve 5, one end of the spiral air inlet channel 9 close to the smoke inserting port 121 is provided with an air flow inlet 91, one end of the spiral air inlet channel 9 far away from the smoke inserting port 121 is provided with an air flow outlet 92, the air flow outlet 92 is communicated with the heat insulation cavity 7, and the heat insulation cavity 7 is communicated with the air inlet hole 22. Referring to fig. 4 and 6 in combination, when the heating non-combustion smoking set is used to bake the heating cigarette 100, cool air in the external environment enters the spiral air inlet channel 9 from the air inlet 91 at the upper end of the spiral air inlet channel 9 (the end of the spiral air inlet channel 9 near the cigarette inserting port 121) during the smoking process of the user holding the cigarette 100, the air inlet flows into the heat insulation cavity 7 through the air outlet 92 after passing through the spiral air inlet channel 9, then enters the cigarette holder cavity 21 through the air inlet 22 at the bottom of the cigarette holder 2 from the heat insulation cavity 7, finally passes through cut tobacco from the bottom of the cigarette 100, and reaches the user port together after being mixed with smoke, so that the user achieves the effect of simulating smoking.

Compared with the prior art, the heating non-combustion smoking set provided by the embodiment of the utility model has the advantages that the spiral air inlet channel 9 is arranged around the smoking support 2, so that the path length of the air inlet flow is increased, the flowing time of the air inlet flow in the spiral air inlet channel 9 is prolonged, and the air inlet flow passing through the spiral air inlet channel 9 effectively takes away the heat on the smoking set shell in a heat exchange mode, so that the smoking set shell is well radiated, and the phenomenon of overhigh temperature of the smoking set shell is avoided. And, be provided with thermal-insulated chamber 7 between cigarette holder 2 and spiral inlet channel 9 for the lateral wall that spiral inlet channel 9 and cigarette holder 2 can not direct contact, thereby avoid cigarette holder 2 to directly transmit the heat to spiral inlet channel 9, both can reduce the heat dissipation of piece 4 that generates heat in the cigarette holder inner chamber 21, improve the heating efficiency of piece 4 to cigarette 100 that generates heat, can avoid the air current that advances in the spiral inlet channel 9 to be heated to higher temperature again, further improve the air current that advances and carry out the radiating effect of heat exchange to the smoking set shell, prevent that smoking set shell temperature from too high and influencing normal use.

Referring to fig. 3, 5 and 9, in some embodiments, the housing 1 is generally cylindrical, the housing 1 includes a bottom shell 11 with a closed bottom and an open top, and an upper cover 12 detachably mounted on the open top of the bottom shell 11, when the upper cover 12 is covered on the open top of the bottom shell 11, the cavity of the bottom shell 11 and the cavity of the upper cover 12 can define a containing cavity 13, the smoke holder 2, the first sleeve 5 and the second sleeve 6 are all located in the cavity of the upper cover 12, the base 3 is fixed in the open top of the bottom shell 11, the smoke inserting opening 121 is opened on the upper cover 12, and the smoke inserting opening 121 is communicated with the air flow inlet 91 for external air to flow into the spiral air inlet channel 9 through the air flow inlet 91. Through adopting above-mentioned scheme, offer on upper cover 12 and insert cigarette mouth 121, will insert cigarette mouth 121 and air inlet 91 intercommunication to make outside cold air can directly get into the air inlet 91 of spiral air inlet channel 9 through inserting cigarette mouth 121, and then make the air inflow follow spiral air inlet channel 9 from top to bottom and flow, through the heat exchange mode that the air inflow that flows through spiral air inlet channel 9 formed, effectively take away the heat on the smoking set shell, in order to play good radiating effect to the smoking set shell, avoid the smoking set shell to appear the too high phenomenon of temperature.

Referring to fig. 3, 5 and 9, in some embodiments, the heating non-combustible smoking set further includes a power supply device 8 for supplying power to the heating element 4, wherein the power supply device 8 is accommodated in the accommodating cavity 13, and the heating element 4 is electrically connected to the power supply device 8. Through adopting above-mentioned scheme, be provided with power supply unit 8 in housing 1 hold chamber 13, supply power to the piece 4 that generates heat through power supply unit 8 to the work that generates heat of electric drive piece 4 that generates heat, thereby utilize the piece that generates heat to the tobacco product in the cigarette 100 toasts the heating, in order to produce the smog that supplies the user to suck and use. Specifically, in some embodiments, the power supply device 8 includes a battery core 81, a battery core bracket 82, a control board 83 and a key 84 disposed on the control board 83, the battery core 81 is positioned and installed in a cavity of the bottom shell 11 through the battery core bracket 82, the bottom shell 11 is provided with a key hole 111 for exposing the key 84, the control board 83 is supported and fixed on the battery core bracket 82, the control board 83 is electrically connected with the battery core 81, the heating element 4 is electrically connected with the control board 83 and the battery core 81 through electrodes respectively, and the key 84 on the control board 83 controls the heating element 4 of the heating non-combustion smoking set to be electrified and heated. In other embodiments, the bottom end of the bottom shell 11 is further provided with a charging interface 85 for charging the battery 81, and the charging interface 85 is electrically connected with the control board 83.

Referring to fig. 4, 6 and 10, in some embodiments, the heating non-combustible smoking set further includes a flow guide 20 arranged between the first sleeve 5 and the smoke holder 2 to separate the heat insulation chamber 7 into a first heat insulation air passage 30 and a second heat insulation air passage 40, wherein a first end of the flow guide 20 is supported and fixed on the base 3, a vent 50 is arranged on the flow guide 20 and is used for communicating the first heat insulation air passage 30 with the second heat insulation air passage 40, the first heat insulation air passage 30 is communicated with the air inlet hole 22, and the second heat insulation air passage 40 is communicated with the air flow outlet 92. Through adopting above-mentioned scheme, be provided with honeycomb duct 20 between first sleeve pipe 5 and the cigarette support 2, the bottom support of honeycomb duct 20 is fixed in on the base 3, the top of honeycomb duct 20 stretches into thermal-insulated chamber 7, separate in proper order thermal-insulated chamber 7 from inside to outside (along the radial outside direction of first sleeve pipe 5) and form first thermal-insulated air flue 30 and the thermal-insulated air flue 40 of second, be equipped with the air vent 50 of the thermal-insulated air flue 40 of intercommunication first thermal-insulated air flue 30 and second on the honeycomb duct 20, the inlet port 22 intercommunication of first thermal-insulated air flue 30 and cigarette support 2, the air current export 92 intercommunication of the thermal-insulated air flue 40 of second and spiral inlet channel 9. Referring to fig. 4 and 6 in combination, when the heating non-combustion smoking set is used to bake the heating cigarette 100, cold air in the external environment enters the spiral air inlet channel 9 from the air inlet 91 at the upper end of the spiral air inlet channel 9 during the smoking process of the heating cigarette 100, after passing through the spiral air inlet channel 9, the air flow first flows into the second heat-insulating air channel 40 from the air outlet 92, then enters the first heat-insulating air channel 30 from the second heat-insulating air channel 40 through the air vent 50 on the air guide pipe 20, so that the air flow can be made to wind up and down along the second heat-insulating air channel 40 and the first heat-insulating air channel 30, a heat-insulating air curtain is formed in the heat-insulating cavity 7, the heat is further prevented from being directly transferred to the spiral air inlet channel 9 by the smoke holder 2, the heat dissipation of the heating element 4 in the smoke holder cavity 21 can be reduced, the heating efficiency of the heating element 4 on the cigarette 100 can be improved, the air flow in the spiral air inlet channel 9 can be prevented from being heated to a higher temperature, the heat-exchanging effect of the air flow on the smoking set housing can be effectively improved, and the heat dissipation effect of the smoking set housing is prevented from influencing the normal use of the smoking set. After the air flow of the air enters the inner cavity 21 of the cigarette holder through the air inlet hole 22 at the bottom of the cigarette holder 2 after the air flow of the air flows up and down along the second heat insulation air passage 40 and the first heat insulation air passage 30, finally passes through the tobacco shreds from the bottom of the cigarette 100 and reaches the mouth of a user together after being mixed with the smoke, so that the user achieves the effect of simulating smoking.

Referring to fig. 4, 6 and 10, in some embodiments, the number of the ventilation holes 50 is plural, and the ventilation holes 50 are equally spaced along the circumferential direction of the flow guiding tube 20. Through adopting above-mentioned scheme, set up a plurality of air vents 50 on the pipe wall of honeycomb duct 20, and a plurality of air vents 50 are equidistant along the circumference of honeycomb duct 20 to make the air current that admits air in the second thermal-insulated air flue 40 can evenly flow into first thermal-insulated air flue 30, and form stable and even thermal-insulated air curtain in thermal-insulated chamber 7, effectively avoid the cigarette to hold in the palm 2 with the direct transfer of heat to spiral inlet channel 9. It will be appreciated that in other embodiments, the ventilation holes 50 may be elongated holes, and the number of the elongated holes may be one, two, three or more than four, and the number and the size of the elongated holes may be reasonably set according to the surface area of the tube wall of the flow guiding tube 20 and specific use requirements. Also, referring to fig. 8 in combination, in some embodiments, the length direction of the elongated hole coincides with the axial direction of the flow guiding tube 20, so as to guide the intake air flow in the second insulating air duct 40 to uniformly flow into the first insulating air duct 30 through the elongated hole, and form a stable and uniform insulating air curtain in the insulating chamber 7.

Referring to fig. 4 and 6 in combination, in some of these embodiments, the longitudinal cross-sectional area of the spiral inlet channel 9 increases gradually from one end near the airflow inlet 91 to one end near the airflow outlet 92. Through adopting above-mentioned scheme, with spiral air inlet channel 9 from top to bottom variable cross section passageway setting, through the longitudinal cross section area with spiral air inlet channel 9 from being close to the one end of air inlet 91 to being close to the one end of air outlet 92 and increasing the setting gradually, can change the velocity of flow of the air intake in the spiral air inlet channel 9 for the air intake velocity in the spiral air inlet channel 9 reduces gradually from being close to the one end of air inlet 91 to being close to air outlet 92, prolongs the time that the air intake flows in spiral air inlet channel 9, makes the air intake through spiral air inlet channel 9 effectively take away the heat on the smoking set shell through the mode of heat exchange, in order to carry out good heat dissipation to the smoking set shell, avoid smoking set shell appearance high temperature phenomenon. The longitudinal cross-sectional area of the spiral intake passage 9 is understood to mean the passage area of a cross-section formed by longitudinally sectioning the spiral intake passage 9 from top to bottom in the radial direction of the first sleeve 5.

Referring to fig. 4 and 6 in combination, in some embodiments, an annular heat insulation gap 60 is formed between the inner side wall of the second sleeve 6 and the inner side wall of the housing 1. Through adopting above-mentioned scheme, be formed with the thermal-insulated clearance 60 of ring cavity form between the inside wall of second sleeve pipe 6 and the inside wall of casing 1, avoid second sleeve pipe 6 and casing 1 direct contact to avoid second sleeve pipe 6 to directly transmit the casing 1 with heat, and then can prevent to a certain extent that the smoking set shell from appearing the too high phenomenon of temperature.

Referring to fig. 4, 6, 7 and 8, in some embodiments, the tray 2 is sleeved with an annular cover plate 70, and the annular cover plate 70 covers a port of an end of the first sleeve 5 facing away from the base 3, so as to seal a top end of an insulation cavity 7 formed between the first sleeve 5 and the tray 2. Through adopting above-mentioned scheme, be provided with annular apron 70, annular apron 70 is through its annular ring suit and be fixed in on the cigarette holds in the palm 2, and annular apron 70 closing cap is on the port of the one end of first sleeve pipe 5 deviating from base 3 to seal the top of the thermal-insulated chamber 7 that forms between first sleeve pipe 5 and the cigarette holds in the palm 2, avoid the air current that admits in the thermal-insulated chamber 7 to carry heat to scatter and disappear from the top in thermal-insulated chamber 7. It will be appreciated that the annular cover plate 70 may also be a ring plate formed by the top end of the tray 2 having a cylindrical outline, extending radially outwardly of the tray 2. Thus, the annular cover plate 70 and the tobacco holder 2 can be integrally formed, the processing technology is reduced, and the connection strength of the annular cover plate 70 and the tobacco holder 2 is enhanced.

Referring to fig. 7, 8 and 9, in some embodiments, the outer peripheral surface of the annular cover plate 70 is provided with a protruding portion 80 along the radial direction thereof, and the corresponding port of the first sleeve 5 is provided with a recessed portion 90 for engaging with the protruding portion 80, so that the annular cover plate 70 can be positioned on the corresponding port of the first sleeve 5 when the protruding portion 80 is engaged with the recessed portion 90. Through adopting above-mentioned scheme, be equipped with the card protruding 80 along its radial protruding on annular apron 70's the outer peripheral face to concave draw-in groove 90 that is equipped with on the corresponding port of first sleeve pipe 5, the shape size of card protruding 80 and the shape size looks adaptation of draw-in groove 90, in order to when card protruding 80 block in the draw-in groove 90, can be with annular apron 70 location on the corresponding port of first sleeve pipe 5, make things convenient for annular apron 70 and the assembly of first sleeve pipe 5.

Referring to fig. 4, 6 and 11, in some embodiments, the heating element 4 is a heating plate, and a piercing tip 41 for piercing the cigarette 100 is disposed at one end of the heating plate in the inner cavity 21 of the cigarette holder so that the heating plate can be inserted into the cigarette 100. Through adopting above-mentioned scheme, be equipped with puncture pointed end 41 in the one end of piece that generates heat, when the user needs to use cigarette 100 simulation smoking, only need with cigarette 100 cartridge in cigarette support inner chamber 21, puncture cigarette 100 through puncture pointed end 41 so that the piece that generates heat can bury fast and insert inside cigarette 100, and then utilize the piece that generates heat to toast the tobacco product in the cigarette 100 to produce the smog that supplies the user to suck and use. It is understood that the heat generating member 4 may be, but not limited to, a ceramic heat generating plate, the heat generating member 4 may be a metal heat generating plate, or the like. In other embodiments, the heating element 4 may also be a heating tube, a heating needle, a heating wire or a heating film, which may be reasonably selected and arranged according to actual use needs, and is not limited only herein.

The foregoing description of the preferred embodiments of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the utility model.

Claims (10)

1. A heated non-combustible smoking article, comprising:

the shell is provided with a containing cavity and a smoke inserting port communicated with the containing cavity;

the cigarette holder is arranged in the accommodating cavity and is provided with a cigarette holder inner cavity for accommodating cigarettes, the cigarette holder inner cavity is correspondingly arranged with the cigarette inserting port, so that the cigarettes can be inserted into the cigarette holder inner cavity through the cigarette inserting port, and the bottom of the cigarette holder is provided with an air inlet hole communicated with the cigarette holder inner cavity;

the base is arranged in the accommodating cavity and is positioned below the smoke holder;

the heating piece is arranged on the base, is inserted into the inner cavity of the cigarette holder through the air inlet hole and is used for baking and heating tobacco products in the cigarettes to generate smoke when the cigarettes are inserted into the accommodating cavity;

a first sleeve supported on the base and sleeved outside the smoke holder to form a heat insulation cavity in the first sleeve and outside the smoke holder, a spiral fin surrounding the first sleeve arranged on the outer side wall of the first sleeve, and

the second sleeve is arranged in the accommodating cavity and sleeved on the outer side of the first sleeve, the inner side wall of the second sleeve is in contact with the spiral fins, so that a spiral air inlet channel is formed in the second sleeve and at the outer parts of the first sleeve and the spiral fins, one end, close to the smoke inserting port, of the spiral air inlet channel is provided with an air flow inlet, one end, far away from the smoke inserting port, of the spiral air inlet channel is provided with an air flow outlet, the air flow outlet is communicated with the heat insulation cavity, and the heat insulation cavity is communicated with the air inlet.

2. The heated non-combustible smoking article of claim 1, further comprising a duct spaced between the first sleeve and the receptacle to separate the insulating chamber into a first insulating air duct and a second insulating air duct, the duct being supported at a first end and secured to the base, the duct having a vent hole communicating the first and second insulating air ducts, the first insulating air duct communicating with the inlet aperture, the second insulating air duct communicating with the air flow outlet.

3. The heated non-combustible smoking article of claim 2, wherein the number of ventilation holes is a plurality of ventilation holes equally spaced along the circumference of the duct.

4. The heated non-combustible smoking article of claim 1, wherein the longitudinal cross-sectional area of the helical intake passage increases progressively from an end adjacent the airflow inlet to an end adjacent the airflow outlet.

5. The heated non-combustible smoking article of claim 1, wherein an annular insulating gap is formed between the inner side wall of the second sleeve and the inner side wall of the housing.

6. The heated non-combustible smoking article of claim 1, wherein the receptacle is sleeved with an annular cover plate that seals over a port at an end of the first sleeve facing away from the base to close a top end of the insulating cavity formed between the first sleeve and the receptacle.

7. The heating non-combustible smoking article of claim 6, wherein the annular cover plate has a radially projecting detent on its outer peripheral surface, and the corresponding port of the first sleeve has a recess for engaging the detent, the detent engaging the detent to locate the annular cover plate on the corresponding port of the first sleeve.

8. The heated non-combustible smoking article of claim 1, wherein the heating element is a heating sheet, and wherein the end of the heating sheet in the interior cavity of the holder is provided with a piercing tip for piercing the cigarette so that the heating sheet can be inserted inside the cigarette.

9. The heated non-combustible smoking article of claim 1, further comprising a power supply for supplying power to the heat-generating element, the power supply being housed in the housing cavity, the heat-generating element being electrically connected to the power supply.

10. The heated non-combustible smoking article of any of claims 1 to 9, wherein the housing includes a closed bottom and open top bottom base and an upper cover removably mounted over the open top base, the cavity of the base and the cavity of the upper cover defining the receiving cavity when the upper cover is closed over the open top base, the tray, the first sleeve and the second sleeve being located in the cavity of the upper cover, the base being secured in the open top base, the smoke inlet opening in the upper cover, the smoke inlet communicating with the airflow inlet for external air to flow into the spiral air intake duct through the airflow inlet.

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