Heated, non-combustible smoking apparatus

Abstract

The utility model discloses a kind of heating non-combustion smoking set, comprising: at least two arc plate bodies being spaced apart along first direction, two arc plate bodies are jointly defined as the clamping cavity for clamping aerosol generating product extending along axial direction;Connecting assembly, with two arc plate bodies hinged, and it is set to make two arc plate bodies pivot with second direction as axis, pivot drive two arc plate bodies to carry out warping plate movement, to make the top end and bottom end of two arc plate bodies produce displacement along first direction in opposite or same direction, to make the inner diameter of the top and bottom of clamping cavity reverse change, second direction is perpendicular to axial direction and first direction;When the inner diameter of the top of clamping cavity increases to not less than the outer diameter of aerosol generating product, the inner diameter of the bottom of clamping cavity is synchronously reduced to less than the outer diameter of aerosol generating product. Both ensure that plug-in is smooth, and effectively prevent that aerosol generating product accidentally comes out in use.

Description

Technical Field

[0001] This utility model relates to the field of novel tobacco products and smoking devices, and in particular to a heated non-combustible smoking device. Background Technology

[0002] In externally heated non-combustible tobacco devices, the cigarette is typically placed inside the heating element's cavity for heating. To ensure a smooth user experience, the ease of insertion and removal of the cigarette, along with its stable holding position, are two core requirements, but existing technologies struggle to achieve both simultaneously. Firstly, the most common approach is a clearance fit, where the inner diameter of the heating element is slightly larger than the outer diameter of the cigarette. While this achieves smooth insertion and removal, insufficient holding force makes the cigarette prone to accidental dislodgement due to lip pull, resulting in poor stability. To improve stability, some solutions employ an interference fit, reducing the inner diameter of the heating element to hold the cigarette tightly. However, while this alleviates the dislodgement problem, manufacturing tolerances between the cigarette and the heating element can easily lead to excessive insertion and removal resistance, severely sacrificing smoothness. Furthermore, another approach attempts to use a ring-shaped toothed flexible component at the cigarette insertion port to secure the cigarette, aiming for a balance between smoothness and stability. However, due to the limited contact area and the unsuitable material hardness, this flexible component still provides insufficient actual holding force, resulting in poor anti-dislodgement performance. Therefore, how to coordinate the contradiction between smooth insertion and removal and clamping stability, and overcome the impact of tolerances, has become a technical bottleneck that urgently needs to be overcome in this field. Utility Model Content

[0003] This invention proposes a heated non-combustible smoke appliance to solve the above-mentioned problems.

[0004] In a first aspect, embodiments of this utility model disclose a heated non-combustible smoke appliance, comprising:

[0005] At least two arc-shaped plates spaced apart along a first direction, the two arc-shaped plates together defining a clamping cavity extending along the axial direction for clamping aerosol-generated articles;

[0006] The connecting component is hinged to two arc-shaped plates and configured to allow the two arc-shaped plates to pivot about a second direction as an axis. The pivoting drives the two arc-shaped plates to perform a rocker motion, thereby causing the top and bottom ends of the two arc-shaped plates to move in opposite directions or towards each other along a first direction, so that the inner diameters of the top and bottom of the clamping cavity change in opposite directions. The second direction is perpendicular to the axial direction and the first direction.

[0007] When the inner diameter of the top of the clamping cavity increases to a level not less than the outer diameter of the aerosol-generated product, the inner diameter of the bottom of the clamping cavity simultaneously decreases to a level less than the outer diameter of the aerosol-generated product.

[0008] By adopting the above technical solution, the heated non-combustible smoke device provided by this utility model has a pivotable arc-shaped plate and connecting components, which makes the clamping cavity form opposite diameter changes at the top and bottom. When the inner diameter at the top increases to facilitate insertion, the bottom simultaneously shrinks to clamp the aerosol-generated product. This not only ensures smooth insertion and removal, but also effectively prevents the aerosol-generated product from accidentally coming out during use. It achieves a balance between the convenience of insertion and removal and the stability of clamping, and overcomes the contradiction of difficulty in balancing insertion and removal resistance and clamping force in traditional solutions.

[0009] According to another specific embodiment of the present invention, the connecting component includes: a connecting shaft, which is correspondingly disposed in the movable space formed between the two arc-shaped plates, and is movably connected to the two arc-shaped plates on both sides of the movable space.

[0010] According to another specific embodiment of the present invention, the connecting assembly further includes: a first connecting ear plate and a second connecting ear plate, the connecting shaft passing through the ear holes of the first connecting ear plate and the second connecting ear plate, and the first connecting ear plate and the second connecting ear plate being fixed to two arc-shaped plates on both sides of the movable space respectively.

[0011] According to another specific embodiment of the present invention, it further includes: a bushing, which is sleeved on the outside of the connecting shaft and abuts against the first connecting lug or the second connecting lug in a second direction to achieve positioning.

[0012] According to another specific embodiment of the present invention, it further includes: a first heat insulation cavity, which is sleeved on the outside of the arc-shaped plate and located above the connecting assembly.

[0013] According to another specific embodiment of the present invention, it further includes: a limiting rib formed on the inner wall of the first heat insulation cavity, the bottom surface of the limiting rib abutting against the circumferential surface of the connecting shaft.

[0014] According to another specific embodiment of the present invention, it further includes: a second heat insulation cavity, which is sleeved on the outside of the arc-shaped plate and is at least partially located below the connecting assembly.

[0015] According to another specific embodiment of the present invention, a limiting groove is provided on the side of the second heat insulation cavity facing the connecting assembly, and the end of the connecting shaft away from the arc-shaped plate is accommodated in the limiting groove.

[0016] According to another specific embodiment of the present invention, the first heat insulation cavity is sleeved outside the second heat insulation cavity, and the limiting rib and the groove wall of the limiting groove together define a limiting space for limiting the displacement of the connecting shaft. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the explosion structure of the heated non-combustible smoke device in the embodiment of this utility model;

[0018] Figure 2This is a cross-sectional schematic diagram of the heated non-combustible smoke device according to an embodiment of the present invention;

[0019] Figure 3 This is a schematic diagram of the structure of the heated non-combustible smoking device before the cigarette is inserted, according to an embodiment of this utility model.

[0020] Figure 4 This is a schematic diagram showing the change in the inner diameter of the heated non-combustible tobacco device when the cigarette is inserted, according to an embodiment of this utility model.

[0021] Figure 5 This is a schematic diagram of the structure of the heated non-combustible tobacco device holding the cigarette stick in an embodiment of this utility model;

[0022] Figure 6 This is an exploded structural diagram of the arc-shaped plate and connecting components in an embodiment of this utility model.

[0023] Figure label:

[0024] Arc-shaped plate 1; clamping cavity 11; connecting assembly 2; connecting shaft 21; first connecting ear plate 22; second connecting ear plate 23; bushing 24; first heat insulation cavity 3; limiting rib 31; second heat insulation cavity 4; limiting groove 41. Detailed Implementation

[0025] The following specific embodiments illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification. Although the description of this utility model will be presented in conjunction with preferred embodiments, this does not mean that the features of this utility model are limited to this embodiment. On the contrary, the purpose of describing the utility model in conjunction with the embodiments is to cover other options or modifications that may be derived based on the claims of this utility model. To provide a deep understanding of this utility model, many specific details will be included in the following description. This utility model may also be implemented without using these details. Furthermore, to avoid confusion or obscuring the focus of this utility model, some specific details will be omitted in the description. It should be noted that, unless otherwise specified, the embodiments and features in the embodiments of this utility model can be combined with each other.

[0026] It should be noted that in this specification, similar reference numerals and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0027] The terms “first”, “second”, etc., are used only to distinguish descriptions and should not be interpreted as indicating or implying relative importance.

[0028] In the description of this embodiment, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set up," "connected," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this embodiment based on the specific circumstances.

[0029] To make the objectives, technical solutions, and advantages of this utility model clearer, the embodiments of this utility model will be described in further detail below with reference to the accompanying drawings.

[0030] Firstly, reference Figure 1 , Figure 2 As shown, an embodiment of this utility model discloses a heated non-combustible smoke appliance, comprising: at least two [devices] along a first direction (e.g., [other components]). Figure 1 The two arc-shaped plates 1 and connecting components 2 are spaced apart in the x-direction. The two arc-shaped plates 1 together define the axial direction (e.g., in the x-direction). Figure 1 A clamping cavity 11 extending in the z-direction for clamping aerosol-generating products (such as cigarettes); a connecting assembly 2 is hinged to two arc-shaped plates 1 and configured such that the two arc-shaped plates 1 are axial about a second direction ( Figure 1 The extension direction of the connecting shaft 21 is the second direction, as detailed in the reference. Figure 2 The two arc-shaped plates 1 pivot in the y-direction, which drives the two arc-shaped plates 1 to rocker motion, thereby causing the top and bottom ends of the two arc-shaped plates 1 to move in opposite directions or towards each other along the first direction X, so that the inner diameters of the top and bottom of the clamping cavity 11 change in opposite directions. The second direction is perpendicular to the axial direction Z and the first direction X. When the inner diameter of the top of the clamping cavity 11 increases to not less than the outer diameter of the aerosol-generated product, the inner diameter of the bottom of the clamping cavity 11 decreases simultaneously to less than the outer diameter of the aerosol-generated product.

[0031] Through the above method, the heated non-combustible smoke appliance provided by this utility model, by setting a pivotable arc-shaped plate 1 and a connecting component 2, makes the clamping cavity 11 form opposite diameter changes at the top and bottom. When the inner diameter at the top increases to facilitate insertion, the bottom simultaneously shrinks to clamp the aerosol-generated product. This not only ensures smooth insertion and removal, but also effectively prevents the aerosol-generated product from accidentally coming out during use. It achieves a balance between the convenience of insertion and removal and the stability of clamping, overcoming the contradiction that it is difficult to balance insertion and removal resistance and clamping force in traditional solutions.

[0032] Specifically, such as Figure 3 , Figure 4 , Figure 5As shown, before inserting the cigarette (outer diameter d), the top inner diameter D1 of the two arc-shaped plates 1 is made larger than the bottom inner diameter D2, where D1 > d > D2. When inserting the cigarette in the insertion direction, the larger top inner diameter D1 facilitates the insertion of the cigarette. Figure 4 As shown, as the cigarette is further inserted, it contacts the bottom of the arc-shaped plate 1. The squeezing force of the cigarette on the bottom of the arc-shaped plate 1 drives the bottom of the arc-shaped plate 1 to produce opposite displacements, causing the bottom inner diameter D2 to increase to D2', where d ≥ D2'>D2. Preferably, d ≈ D2', and the cigarette is accommodated and clamped by the bottom of the arc-shaped plate 1. Simultaneously, the top of the arc-shaped plate 1 produces opposite, inward displacements, and the inner diameters D1 of the tops of the two arc-shaped plates 1 change in opposite directions, decreasing to D1', where D1'≤d, 0≤d-D1'≤0.5mm. This allows the top of the arc-shaped plate 1 to contact or slightly clamp the cigarette, ensuring the contact area between the arc-shaped plate 1 and the cigarette, thereby ensuring the heating effect of the cigarette without significantly increasing the insertion and extraction resistance.

[0033] In some embodiments, when the two arc-shaped plates 1 are parallel along the z-direction, the inner diameter of the top is equal to the inner diameter of the bottom, and both are slightly smaller than the outer diameter of the cigarette. Before the cigarette is inserted into the clamping cavity 11, D1 > d > D2.

[0034] After the cigarette is inserted into the clamping cavity 11, the bottom of the arc-shaped plate 1 clamps the cigarette, D2'≤d, and the top of the arc-shaped plate 1 accommodates the cigarette, D1'≤d (the top does not clamp or slightly contacts the cigarette, ensuring smooth removal of the cigarette), and D1' ≥ D2', that is, d≥D1' ≥ D2'.

[0035] In this embodiment, when D1' > D2', the bottom of the arc-shaped plate 1 clamps the cigarette more tightly than its top, achieving precise functional allocation. The bottom of the arc-shaped plate 1 is responsible for preventing the cigarette from coming out, while the top of the arc-shaped plate 1 is a "guiding and stabilizing zone," which mainly prevents the cigarette from shaking during heating, ensuring uniform heating, and has minimal impact on the insertion and extraction force.

[0036] In the above embodiments, the arc-shaped plate 1 can also be a heating plate, which can heat the aerosol-generated product in the clamping cavity 11 formed by it. In some embodiments, the arc-shaped plate 1 may not have a heating function and is only used to contain the aerosol-generated product.

[0037] In the above embodiments, the position of the connecting components (especially the connecting shaft 21) can be flexibly adjusted by technicians according to the actual situation, and this embodiment does not impose any restrictions.

[0038] In the above embodiments, continue to refer to Figure 1The connecting component 2 includes a connecting shaft 21, which is disposed in the movable space 12 formed between the two arc-shaped plates 1, and is movably connected to the two arc-shaped plates 1 on both sides of the movable space 12.

[0039] In this embodiment, the connecting shaft 21 serves as the pivot center for the entire rocker motion. Its structure is simple and reliable, providing a precise axis of rotation for the movement of the arc-shaped plate 1, ensuring the synchronicity and reversibility of the changes in the inner diameter of the top and bottom. The movable space 12 provides a buffer space for the arc-shaped plate 1 to rotate around the second direction as an axis, avoiding interference between the two arc-shaped plates 1 and ensuring the reversible changes in the inner diameter of the top and bottom of the clamping cavity 11.

[0040] In the above embodiments, such as Figure 1 , Figure 6 As shown, the connecting assembly 2 also includes a first connecting ear plate 22 and a second connecting ear plate 23. The connecting shaft 21 passes through the ear holes of the first connecting ear plate 22 and the second connecting ear plate 23. The first connecting ear plate 22 and the second connecting ear plate 23 are respectively fixed to two arc-shaped plates 1 on both sides of the movable space 12.

[0041] In this embodiment, the first connecting lug 22 and the second connecting lug 23 serve as the motion conversion medium between the arc-shaped plate 1 and the connecting shaft 21. They decompose the overall motion of the arc-shaped plate 1 into pure pivoting around the connecting shaft 21, reducing motion interference and friction, making the rocker action smoother, and improving the durability and reliability of the mechanism.

[0042] In the above embodiments, combined with Figure 2 As shown, the heated non-combustible smoke appliance also includes a bushing 24, which is sleeved on the outside of the connecting shaft 21 and abuts against the first connecting ear plate 22 or the second connecting ear plate 23 in a second direction to achieve a limiting position.

[0043] In this embodiment, the bushing 24 primarily serves an axial positioning function (here, and in the following text, the axial direction refers to the axial direction coaxial with the connecting shaft 21, also known as the y-direction), preventing the connecting shaft 21 and / or the first connecting ear plate 22 and the second connecting ear plate 23 from moving in their axial direction, thus ensuring the stability of the rocker mechanism. Simultaneously, without the bushing 24, the connecting shaft 21 would be in direct metal-to-metal contact with the first connecting ear plate 22 or the second connecting ear plate 23. Frequent pivoting movements would quickly cause the ear hole to wear out (become out of round) or the connecting shaft 21 to wear thin, resulting in play, inaccurate clamping action, abnormal noise, and ultimately, mechanism failure. The bushing 24 reduces wear between the connecting shaft 21 and the ear hole, extends service life, and ensures that the heated non-combustible smoke appliance maintains long-term accuracy and stability.

[0044] In some embodiments, the connecting components 2 include two independent components, each including a connecting shaft 21, a first connecting lug 22, a second connecting lug 23, and a bushing 24. The two connecting components 2 are respectively disposed in two movable spaces between the two arc-shaped plates 1. In some embodiments, the connecting components 2 include two components, respectively disposed in two movable spaces between the two arc-shaped plates 1, but the two connecting components 2 share the same connecting shaft 21. Those skilled in the art can choose the appropriate structure as needed, and this embodiment does not limit this.

[0045] In the above embodiments, the heated non-combustible smoke appliance also includes a first heat insulation cavity 3, which is sleeved on the outside of the arc-shaped plate 1 and located above the connecting component 2.

[0046] In this embodiment, the first heat insulation cavity 3 forms a thermal barrier that can effectively block heat from being transferred upward and outward. Specifically, it prevents high temperature from being directly conducted to the upper shell, mouthpiece, and other parts that the user may come into contact with, thus avoiding burns, protecting the plastic parts from melting, reducing heat loss to the surrounding space, improving heating efficiency, and saving electricity.

[0047] In the above embodiment, the heated non-combustible smoke appliance also includes a limiting rib 31 formed on the inner wall of the first heat insulation cavity 3, with the bottom surface of the limiting rib 31 abutting against the circumferential surface of the connecting shaft 21. The limiting rib 31 and the inner wall of the first heat insulation cavity 3 provide radial and axial constraints on the connecting shaft 21, forming a stable limiting space together with the structure below, preventing the connecting shaft 21 from displacing in the non-pivot direction, and further improving the rigidity and precision of the entire motion mechanism.

[0048] Further reference Figure 1 , Figure 2 The length of the limiting rib 31 is less than the length of the first heat insulation cavity 3 in the z direction. There is a gap between the bottom end of the limiting rib 31 and the bottom edge of the first heat insulation cavity 3. The length a of the gap is not less than the outer diameter of the connecting shaft 21. The width b of the gap matches the length of the connecting shaft 21 on both sides of the bushing 24, so that the end face of the bushing 24 abuts against the inner wall of the first heat insulation cavity 3.

[0049] In this embodiment, by setting the width b of the spacing to match the length of the connecting shaft 21 on both sides of the bushing 24, and by ensuring that the end face of the bushing 24 abuts against the inner wall of the first heat insulation cavity 3, this structure establishes a clear mechanical stop for the entire connecting shaft 21-shoulder 24 in the second direction. During the insertion and removal of the cigarette, the connecting shaft 21 is subjected to a force in the second direction. Without this design, the connecting shaft 21 may experience slight movement in the second direction, which, with long-term use, could lead to increased play, abnormal noise, and even affect the accuracy of the opening and closing action of the clamping cavity. This embodiment completely eliminates the possibility of movement of the connecting shaft 21 in the second direction, ensuring the stability and durability of the rocker motion mechanism.

[0050] The length 'a' of the spacing is not less than the outer diameter of the connecting shaft 21, which forms a sufficiently wide "assembly window" at the bottom. During final assembly, the first heat insulation cavity 3 can directly confine the connecting shaft 21 within the limiting space between the limiting rib 31 and the limiting groove 41 through this "assembly window" without the need for complex axial threading or forced insertion. This greatly simplifies the assembly operation, improves production efficiency, and reduces assembly costs.

[0051] The end face of the bushing 24 (the surface perpendicular to the axial direction of the bushing 24) abuts against the inner wall of the first heat insulation cavity 3 over a large area, distributing the axial force of the bushing 24 to the first heat insulation cavity 3, the main structural component, thus avoiding stress concentration at a small point. This surface contact method of force distribution is more stable than point or line contact, can withstand greater repeated forces, improves the structural strength and reliability of the entire connection assembly 2 under frequent use, and prevents component wear or damage caused by stress concentration.

[0052] In the above embodiments, the heated non-combustible smoke appliance also includes a second heat insulation cavity 4, which is sleeved on the outside of the arc-shaped plate and is at least partially located below the connecting component 2.

[0053] In this embodiment, the second heat insulation chamber 4 prevents heat from transferring downwards to the heated non-combustible smoke device, thus protecting the battery and electronic components below. It also prevents heat from transferring to the outside of the device, preventing burns during use and improving the user experience. Furthermore, the second heat insulation chamber 4 and the first heat insulation chamber 1 together form a closed or semi-closed heating chamber, concentrating heat in the core heating area. This allows the heat to act more effectively on the aerosol-generating product, improving heating efficiency and energy efficiency.

[0054] In the above embodiment, a limiting groove 41 is provided on the side of the second heat insulation cavity 4 facing the connecting assembly 2, and the end of the connecting shaft 21 away from the arc-shaped plate 1 is accommodated in the limiting groove 41.

[0055] In this embodiment, the bushing 24 is fixed to the middle of the connecting shaft 21, dividing the connecting shaft 21 into one end closer to the arc-shaped plate 1 and one end farther from the arc-shaped plate 1. The limiting groove 41 provides a precise mounting seat and support structure for one end of the connecting shaft 21. It ensures the accuracy of the initial installation position of the connecting shaft 21 and, together with the limiting rib 31 above, completes the overall fixation of the connecting shaft 21, making the pivoting movement more stable.

[0056] In the above embodiment, the first heat insulation cavity 3 is sleeved outside the second heat insulation cavity 4, and the limiting rib 31 and the groove wall of the limiting groove 41 together define a limiting space for limiting the displacement of the connecting shaft 21.

[0057] In this embodiment, the assembly of the first heat insulation cavity 3 and the second heat insulation cavity 4 naturally forms a closed, high-precision limiting space. This design simplifies the assembly process, improves production efficiency and product consistency, and ensures that the connecting shaft 21 will not loosen or shift during operation, greatly enhancing the overall rigidity and durability of the product.

[0058] Furthermore, the inner wall of the first insulation chamber 3 abuts against the outer wall of the second insulation chamber 4, eliminating the air gap between them and forming a continuous, seamless insulation unit. This significantly improves the overall insulation performance and better protects the internal components of the heated tobacco product. Moreover, the first insulation chamber 3 and the second insulation chamber 4 support each other, forming a robust frame structure. This enhances the overall mechanical strength of the heated tobacco product, enabling it to withstand greater external forces without deformation, thus improving the product's durability and reliability.

[0059] In some embodiments, the connecting component 2 may not be located in the movable space 12 between the two arc-shaped plates 1. The two connecting components 2 can be independently hinged to the arc-shaped plates 1 and fixed to the second heat insulation cavity 4, allowing the top and bottom of the arc-shaped plates 1 to undergo a seesaw motion. The specific structural form of the connecting component 2 can refer to a seesaw structure, and this embodiment does not limit this. In this embodiment, the number of arc-shaped plates 1 is not limited to two; it can be three, four, or more, ensuring sufficient movable space 12 between the two arc-shaped plates 1 to prevent interference when the arc-shaped plates 1 undergo a seesaw motion.

[0060] Although the present invention has been illustrated and described with reference to certain preferred embodiments, those skilled in the art should understand that the above description is a further detailed explanation of the present invention in conjunction with specific embodiments, and should not be construed as limiting the specific implementation of the present invention to these descriptions. Those skilled in the art can make various changes in form and detail, including some simple deductions or substitutions, without departing from the spirit and scope of the present invention.

Claims

1. A heated non-combustible smoking appliance, characterized in that, include: At least two arc-shaped plates spaced apart along a first direction, the two arc-shaped plates together defining a clamping cavity extending in the axial direction for clamping aerosol-generated articles; A connecting component is hinged to the two arc-shaped plates and configured to pivot the two arc-shaped plates about a second direction as an axis. The pivoting drives the two arc-shaped plates to perform a rocker motion, thereby causing the top and bottom ends of the two arc-shaped plates to displace in opposite directions or towards each other along a first direction, so that the inner diameters of the top and bottom of the clamping cavity change in opposite directions. The second direction is perpendicular to the axial direction and the first direction. When the inner diameter of the top of the clamping cavity increases to a size not less than the outer diameter of the aerosol-generated product, the inner diameter of the bottom of the clamping cavity simultaneously decreases to a size less than the outer diameter of the aerosol-generated product.

2. The heated non-combustible smoke appliance according to claim 1, characterized in that, The connection component includes: A connecting shaft is provided in the movable space formed between the two arc-shaped plates, and is movably connected to the two arc-shaped plates on both sides of the movable space.

3. The heated non-combustible smoke appliance according to claim 2, characterized in that, The connection component also includes: The first connecting ear plate and the second connecting ear plate are connected together, and the connecting shaft passes through the ear holes of the first connecting ear plate and the second connecting ear plate. The first connecting ear plate and the second connecting ear plate are respectively fixed to the two arc-shaped plates on both sides of the movable space.

4. The heated non-combustible smoke appliance according to claim 3, characterized in that, Also includes: A bushing is fitted onto the outside of the connecting shaft and abuts against the first connecting lug or the second connecting lug along the second direction to achieve a limiting position.

5. The heated non-combustible smoking appliance according to any one of claims 2 to 4, characterized in that, Also includes: The first heat insulation cavity is fitted outside the arc-shaped plate and located above the connecting assembly.

6. The heated non-combustible smoke appliance according to claim 5, characterized in that, Also includes: A limiting rib is formed on the inner wall of the first heat insulation cavity, and the bottom surface of the limiting rib abuts against the circumferential surface of the connecting shaft.

7. The heated non-combustible smoke appliance according to claim 6, characterized in that, Also includes: The second heat insulation cavity is fitted outside the arc-shaped plate and is at least partially located below the connecting assembly.

8. The heated non-combustible smoke appliance according to claim 7, characterized in that, A limiting groove is provided on the side of the second heat insulation cavity facing the connecting assembly, and the end of the connecting shaft away from the arc-shaped plate is accommodated in the limiting groove.

9. The heated non-combustible smoking appliance according to claim 8, characterized in that, The first heat insulation cavity is sleeved outside the second heat insulation cavity, and the limiting rib and the groove wall of the limiting groove together define a limiting space for limiting the displacement of the connecting shaft.

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