Tobacco clamping structure of heating non-combustion smoking set

Abstract

The utility model provides a heating non-combustion smoking set cigarette clamping structure, which belongs to the technical field of smoking sets, and comprises an inner shell and an outer shell, the outer shell wraps the outer side of the inner shell, the inner shell comprises a first open end, a second open end and an extension section connecting the first open end and the second open end, and the extension section is connected with the first open end and the second open end. A plurality of hollowed-out parts are formed in the extension section and extend in the length direction of the extension section, and the inner wall of the outer shell is tightly attached to the hollowed-out parts and forms a containing cavity with the inner shell. The space occupied by the heating device and the tobacco clamping device can be optimized, and it is guaranteed that the structure of the smoking set is compact and small while the heating effect is not affected.

Description

Technical Field

[0001] The utility model belongs to the technical field of smoking articles, and in particular relates to a cigarette clamping structure of a heat-not-burn smoking article. Background Art

[0002] Heat-not-burn smoking utensils are a type of low-temperature tobacco smoking utensils that use a temperature below the ignition point of tobacco to heat and bake the tobacco to achieve the purpose of smoking. Using this heat-not-burn smoking utensils to smoke cigarettes releases much less harmful components than when lighting and smoking cigarettes in the traditional way, and no ash is produced, making it more environmentally friendly.

[0003] In order to ensure the heating effect of the smoking device, the heat-not-burn smoking device often occupies more space at the heating device, especially at the matching part of the heating device and the cigarette clamp. Patent CN113180300A discloses a heating device for heat-not-burn smoking devices and a heat-not-burn smoking device. The heating device includes a heating cup and a needle-type heater arranged in the center of the heating cup; the needle-type heater includes a core rod, a temperature sensor inserted into the core rod, a core rod insulation layer sintered and wrapped on the outer surface of the core rod, a heating needle heating circuit coated on the outer surface of the core rod insulation layer, a first shell coated outside the heating needle heating circuit, and a mounting base for fixing the needle heater; the heating cup includes a second shell, a heating cup insulation layer sintered on the inner surface of the second shell, and a heating cup heating circuit printed on the outer surface of the heating cup insulation layer; an annular cavity for accommodating a cigarette cartridge is formed between the first shell and the heating cup insulation layer, and the arrangement of the heating device in this way improves the consistency of smoke in the smoking section and makes the smoke full when the cigarette cartridge is heated. However, this arrangement requires the heater to be tightly wrapped axially and a circuit surface to be laid on the outer surface of the insulating layer, which will increase the overall thickness of the heater area and is not conducive to the compactness of the structure of the smoking device. Utility Model Content

[0004] In view of the defects or shortcomings in the prior art, the utility model provides a heat-not-burn smoking utensil cigarette clamping structure, which can optimize the space occupied by the heating device and the cigarette clamp, and ensure the compact structure of the smoking utensil without affecting the heating effect.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] An embodiment of the utility model provides a tobacco clamping structure for a heat-not-burn tobacco device, comprising an inner shell and an outer shell, wherein the outer shell is wrapped around the outside of the inner shell, and the inner shell comprises a first opening end, a second opening end, and an extension section connecting the first opening end and the second opening end, wherein a plurality of hollow portions are provided on the extension section, and the hollow portions extend along the length direction of the extension section, and the inner wall of the outer shell is arranged close to the hollow portions to form a accommodating cavity with the inner shell.

[0007] Furthermore, an upper cover is buckled onto the outer shell, and the upper cover is provided with an opening for the cigarette to pass through, and the opening is arranged corresponding to the first opening end.

[0008] Furthermore, a guide hole is provided in the flat section of the inner shell, an opening aligned with the guide hole is provided inside the upper cover, and a limiting member is provided between the guide hole and the opening.

[0009] Furthermore, the first opening end is elliptical, the second opening end is circular, and a plurality of air holes are circumferentially formed at the second opening end.

[0010] Furthermore, the inner shell further comprises a flat section, the first opening end is arranged on the flat section, and the flat section is arranged perpendicularly to the extension section.

[0011] Furthermore, there are two hollow portions, and the two hollow portions are symmetrically arranged on the extension section.

[0012] Furthermore, a heating body is arranged in the accommodating cavity, and the heating body extends into the accommodating cavity from the second opening end.

[0013] Furthermore, a circuit board and a support frame are arranged below the inner shell, and the support frame is located on the inner side of the circuit board.

[0014] Furthermore, a control button is arranged on the outer shell, and the control button is located above the circuit board.

[0015] Furthermore, the outer shell is wrapped with a protective shell, and the outer shell is provided with raised arc-shaped ribs. The protective shell and the upper cover are both buckled on the outer shell and abut against each other at the arc-shaped ribs.

[0016] Compared with the prior art, the beneficial effects of the utility model are:

[0017] 1. The utility model provides a hollow portion on the inner shell body, and the outer shell body is closely fitted with the inner shell body. The outer shell body side wall of the hollow portion and the surrounding inner shell body side wall act together on the inserted cigarette and the heating body, thereby forming a circumferentially continuous accommodating cavity for the cigarette and the heating body, which not only ensures the accommodating and protecting effect, but also compacts the matching structure of the inner shell body and the outer shell body.

[0018] 2. The utility model provides a flat section on the inner shell and a guide hole on the flat section to form a limit between the inner shell and the upper cover, thereby ensuring the overall stability of the smoking device. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the overall structure of the heat-not-burn smoking device in the embodiment of the utility model;

[0020] Figure 2This is a schematic diagram of the inner shell structure in the embodiment of the utility model;

[0021] Figure 3 This is a schematic diagram of the outer shell structure in the embodiment of the utility model;

[0022] Figure 4 This is a top view of the upper shell in the embodiment of the utility model;

[0023] Figure 5 This is a diagram showing the connection relationship between the inner shell and the support frame in the embodiment of the utility model;

[0024] Figure 6 This is a schematic diagram of the structural coordination of the support frame and the circuit board in the embodiment of the utility model;

[0025] Figure 7 This is a top view of the inner shell structure in the embodiment of the utility model;

[0026] Among them, 1. cigarette; 2. protective shell; 3. upper cover; 31. opening; 32. opening; 4. button; 5. charging port; 6. heating body; 7. cigarette clamping device; 71. outer shell; 72. inner shell; 721. extension section; 722. flat section; 723. accommodating cavity; 724. hollow part; 725. guide hole; 73. first opening end; 74. second opening end; 75. air hole; 8. circuit board; 9. support frame. DETAILED DESCRIPTION

[0027] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0028] A typical implementation of the present utility model is as follows Figure 1-Figure 3 As shown, a heat-not-burn tobacco device cigarette clamp structure includes an inner shell 72 and an outer shell 71, the inner shell 72 includes a first open end 73, a second open end 74 and a side wall of the inner shell 72 connecting the first open end and the second open end, the first open end 73 is used to receive the cigarette, and the second open end 74 is used to receive the heating body 6; the outer shell 71 is arranged outside the inner shell 72, and the outer shell 71 includes a side wall of the outer shell 71 extending along the direction of the cigarette 1; the side wall of the inner shell 72 has a hollow portion 724 extending along the axial direction, and the side wall of the outer shell 71 matches the side wall of the inner shell 72 at the hollow portion 724 to form a circumferentially continuous accommodating cavity 723.

[0029] The outer shell 71 of the cigarette clamping device 7 is wrapped around the outside of the inner shell 72, and the smoking device is provided with an upper cover 3 which is buckled on the outer shell 71. Figure 4As shown, the upper cover 3 is provided with an opening 31 for the cigarette 1 to pass through, and the opening 31 is arranged corresponding to the first opening end 73 of the cigarette clamping device 7. The inner shell 72 of the cigarette clamping device 7 includes an extension section 721, which is located below the first opening end 73 and extends downward from the first opening end 73. The side wall of the outer shell 71 is elliptical and fits and wraps around the outer side of the inner shell 72. The hollow portion 724 is located in the extension section 721. The outer shell 71 is arranged in an elliptical shape that matches the shape of the inner shell 72 and surrounds the inner shell 72. 2 outside, it is in close contact with the side wall of the inner shell 72, and the other parts of the extension section 721 of the inner shell 72 are double-layer walls that are in close contact, namely the side wall of the inner shell 72 and the side wall of the outer shell 71, while the hollow part 724 is a single-layer wall, namely, there is only the side wall of the outer shell 71; the side wall of the outer shell 71 located at the hollow part 724 and the surrounding side wall of the inner shell 72 act together on the inserted cigarette 1 and the heating body 6, so as to form a circumferentially continuous accommodating cavity 723 for the cigarette 1 and the heating body 6, which plays a limiting role for the cigarette 1 and the heating body 6. The hollow part 724 is arranged on the side wall of the extension section 721, which can reduce the side wall area of ​​the inner shell 72 on the one hand, ensuring the accommodating and protecting effect, and on the other hand, the structural coordination between the inner shell 72 and the outer shell 71 is more compact, ensuring the smooth coordination of each structure and extending the service life of the smoking device. The hollow portion 724 is formed in the side wall of the inner shell 72 in the direction along the insertion direction of the cigarette 1 and extends along this direction on the side wall. The hollow portion 724 is configured as two elongated portions of the same size located on the upper side wall and the lower side wall of the inner shell 72 respectively. The opening is located between the first opening end 73 and the second opening end 74, and maintains a aligned shape on the side wall of the inner shell 72.

[0030] The extension section 721 of the inner shell 72 is provided with an elliptical first opening end 73. The cigarette 1 is usually a regular cylinder. The first opening end 73 is set to be elliptical. On the one hand, during installation, the protruding parts on both sides of the ellipse have a limiting effect on other parts assembled with the inner shell 72, which can prevent the inner shell 72 from shaking. On the other hand, there is an assembly gap between the elliptical first opening end 73 and the cylindrical cigarette 1, which will not cause the cigarette 1 to be clamped too tightly, and it is convenient to take out the cigarette 1 when the upper cover 3 is lifted; Figure 5As shown, the heating body 6 extends into the accommodating cavity 723 through the second opening end 74. The second opening end 74 is set to be circular with a diameter smaller than the first opening end 73, and air holes 75 are circumferentially arranged around the second opening end 74 to facilitate rapid gas circulation and prevent gas from overflowing to the edge of the inner shell body 72 through the hollow portion 724. The extension section 721 of the inner shell body 72 and the side wall of the outer shell body 71 jointly form an accommodating cavity 723 for the cigarette 1 to extend into. The outer shell body 71 and the extension section 721 of the inner shell body 72 are closely matched to form a circumferentially continuous accommodating cavity 723, so that the accommodating cavity 723 can ensure the accommodating effect of the cigarette 1 and the heating body 6, and at the same time prevent the smoke and other gases from overflowing from the side wall when the heating body 6 heats the cigarette 1, thereby ensuring the heating effect of the heating body 7 on the cigarette 1. The accommodating chamber 723 is configured as a cup-shaped structure slightly wider than the cigarette 1, and gradually narrows as it extends downward along the elliptical first opening end 73. On the one hand, the accommodating chamber 723 can produce a loose top and tight bottom effect when accommodating the cigarette 1, ensuring the cooperation between the cigarette 1 and the heating body 6 located in the accommodating chamber 723, and the cigarette 1 will not shake excessively in the accommodating chamber 723. At the same time, when lifting the cigarette 1, it only takes a little force to let the cigarette 1 break away from the bottom; on the other hand, the accommodating chamber 723 is configured to be wide at the top and narrow at the bottom, while ensuring that the cigarette 1 can be accommodated, saving internal space, providing more installation space for other structures also located inside, especially structures located on one side of the accommodating chamber 723, such as the circuit board 8 and the support frame 9.

[0031] In addition, the morphological structures of the hollow portion 724 arranged in the container 723 can be various. The hollow portion 724 can extend downward from the bottom of the first opening end 73 along the side wall of the container cavity 723, and only maintain a certain distance from the bottom of the container cavity 723, so that there is an avoidance gap between the cigarette 1 and the inner shell 72, forming an open space, and the outer shell 71 supplements the area of ​​the hollow portion 724 so that smoke will not escape from the hollow portion 724. On the other hand, the hollow portion 724 can be completely arranged on the side wall of the inner shell 72, maintaining a certain distance from the first opening end 73 and the second opening end 74, so that the side wall of the inner shell 72 remains stable while reducing the area, thereby stabilizing the structure of the internal cigarette 1 and the heating body 6; the container cavity 723 can be formed into an elliptical shape that fits the shape of the part of the cigarette 1 that extends into it, and the outer shell 71 is also set to an elliptical shape to cooperate with the inner shell 72 to reduce the overall volume. When the inner diameter of the first opening end is close to the diameter of the cigarette 1, the cigarette 1 can be partially embedded in the accommodating cavity; when the inner diameter of the first opening end 73 is larger than the diameter of the cigarette 1, after the cigarette 1 is embedded, the cigarette 1 is located in the center of the accommodating cavity 723, in a suspended state, and does not contact the inner shell 72, or the cigarette 1 is close to a side wall of the inner shell 72 in the accommodating cavity 723 and contacts the inner shell 72. When the inner diameter of the accommodating cavity 723 is set larger, more specifications of cigarettes 1 can be adapted, the applicability is improved, the number of times the inner shell 72 is replaced is reduced, and it is convenient to use.

[0032] The inner shell 72 of the cigarette clamping device 7 includes an extension section 721 and a flat section 722. The extension section 721 is formed by extending from the first opening end 73 to one side of the second opening end 74. At the same time, the extension section 721 forms a accommodating cavity 723 during the extension process. The inner shell 72 is provided with a flat section 722. The outer shell 71 is wrapped around the outside of the entire inner shell 72, that is, it is also surrounded by the outside of the flat section 722. Under the encirclement of the outer shell 71, the original open space on the side of the flat section 722 facing the extension section 721 becomes the space of the inner shell 72 surrounded by the outer shell 71. The first opening end 73 is formed in the area of ​​the extension section 721 corresponding to the flat section 722. The flat section 722 and the extension section 721 are in a vertical relationship at the first opening end 73. It can be regarded that the extension section 721 and the flat section 722 of the inner shell 72 are connected as a whole through the first opening end 73. The heating body 6 extends into the accommodating cavity 723 to heat the cigarette 1 which is also extended into the accommodating cavity 723. The side of the flat section 722 facing the extending section 723 forms a space of the inner shell 72 parallel to the accommodating cavity 723. Figure 6 As shown, a circuit board 8 and a support frame 9 are placed below the inner shell 72 along the extension direction of the extension section 721. The support frame 9 is located on the inner side of the circuit board 8 and plays a supporting and protective role for the circuit board 8. At the same time, in this embodiment, the support frame 9 and the circuit board 8 are both provided with a protruding portion, which is located on a side parallel to the accommodating cavity 723, that is, the side of the flat section 722 facing the extension section 723 forms a space in the inner shell 72 parallel to the accommodating cavity 723. A circuit is arranged on the surface of the circuit board 8 of this protruding portion to perform functions such as Bluetooth connection, fully utilize the space, and enhance the practicality of the smoking device. At the same time, since the hollow portion 724 can form an open space in the inner shell 72, the side wall of the outer shell 71 and the side wall of the inner shell 72 jointly form a circumferential accommodating cavity 723, so this space can also be used to place other necessary devices of the smoking device or add other functional devices without worrying about water vapor condensation, making the smoking device compact and not affecting the functions of the circuit board 8 and the support frame 9. In addition, a charging interface 5 is arranged on the circuit board 8, and the battery abuts against the circuit board 8 to charge the battery. The cigarette clamping device 7 is provided with a control button 4, which is located above the circuit board 8 and installed on the outer shell 72 to control the switch of the smoking device.

[0033] The outside of the smoking device is provided with a protective shell 2 and an upper cover 3. The protective shell 2 and the upper cover 3 cover the outside of the outer shell 71, which protect the cigarette 1 on the one hand and the outer shell 71 and its internal structure on the other hand. The surface of the outer shell 71 is provided with arc ribs, which are in the form of protrusions and are located on the outside of the outer shell 71. When the protective shell 2 and the upper cover 3 are buckled, they abut at the arc ribs. The protrusion of the arc ribs makes the protective shell 2 and the upper cover 3 form a snap-fit ​​effect. In addition, in order to achieve a better covering effect of the upper cover 3, it is set to make the inner shell 72 and the upper cover 3 form a limited fit to ensure the covering effect and the clamping effect on the cigarette 1, such as Figure 7 As shown, a guide hole 725 is provided in the flat section 722 of the inner shell 72, and a corresponding opening 32 is provided in the inner portion of the upper cover 3 that is aligned with the guide hole 725 when the upper cover is closed. Suitable limiters are selected as needed so that their two ends are respectively located in the guide hole 725 and the opening 32, so that the upper cover 3 and the inner shell 72 are matched when the upper cover 3 is buckled.

[0034] There are multiple hollow parts 724 located on the side wall of the inner shell 72, each hollow part 724 is evenly distributed on the side wall of the inner shell 72 along the circumferential direction, and each hollow part 724 is formed along the insertion direction of the cigarette 1. As the number of hollow parts 724 increases, the size of the inner shell 72 is further reduced, and the open space is larger. They are distributed on the side wall of the inner shell 72 along the circumferential direction, and open spaces are formed on all directions of the inner wall of the inner shell 72. The outer shell 71 is wrapped around the outside of the inner shell 72 to compensate for the hollow parts 724. The combination of the two has a smaller volume, a more compact overall structure, and occupies less space. Each hollow part 724 is set to maintain the same distance from the upper and lower ends of the inner shell 72 to avoid the unstable clamping effect of the cavity on the cigarette 1 caused by excessive reduction in the volume of the inner shell 72.

[0035] The above description is only the preferred embodiment of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A heat-not-burn smoking device cigarette clamp structure, characterized in that: It includes an inner shell and an outer shell, the outer shell is wrapped around the outside of the inner shell, the inner shell includes a first opening end, a second opening end and an extension section connecting the first opening end and the second opening end, the extension section is provided with a plurality of hollow parts, the hollow parts extend along the length direction of the extension section, the inner wall of the outer shell is arranged close to the hollow parts, and forms a accommodating cavity with the inner shell.

2. A heat-not-burn smoking device cigarette clamp structure as claimed in claim 1, characterized in that: An upper cover is buckled on the outer shell, and the upper cover is provided with an opening for the cigarette to pass through, and the opening is arranged corresponding to the first opening end.

3. A heat-not-burn smoking device cigarette clamp structure as claimed in claim 2, characterized in that: A guide hole is provided in the flat section of the inner shell, an opening aligned with the guide hole is provided inside the upper cover, and a limiting member is provided between the guide hole and the opening.

4. The heat-not-burn smoking device cigarette clamp structure according to claim 1, characterized in that: The first opening end is elliptical, the second opening end is circular, and a plurality of air holes are formed in the circumference of the second opening end.

5. The heat-not-burn smoking device cigarette clamp structure according to claim 1, characterized in that: The inner shell further comprises a flat section, the first opening end is arranged on the flat section, and the flat section is arranged perpendicularly to the extension section.

6. The heat-not-burn smoking device cigarette clamp structure according to claim 1, characterized in that: There are two hollow parts, and the two hollow parts are symmetrically arranged on the extension section.

7. The heat-not-burn smoking device cigarette clamp structure according to claim 1, characterized in that: A heating body is arranged in the accommodating cavity, and the heating body extends into the accommodating cavity from the second opening end.

8. The heat-not-burn smoking device cigarette clamp structure according to claim 1, characterized in that: A circuit board and a support frame are arranged below the inner shell, and the support frame is located inside the circuit board.

9. A heat-not-burn smoking device cigarette clamping structure as claimed in claim 8, characterized in that: The outer shell is provided with a control button, and the control button is located above the circuit board.

10. The heat-not-burn smoking device cigarette clamp structure according to claim 2, characterized in that: The outer shell is further wrapped with a protective shell, and the outer shell is provided with raised arc ribs. The protective shell and the upper cover are both buckled on the outer shell and abut against the arc ribs.

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