Portable smoking set suitable for multi-size cigarette diameters and having burnout prompting function

Abstract

The utility model provides a portable smoking set suitable for multi-size cigarette diameters and having a burn-out prompt function. The portable smoking set comprises a main barrel, a top cover, a cigarette clamping mechanism, a heat conduction structure and a temperature sensing color changing area. An inner cavity is formed in the main cylinder body and used for containing cigarettes and cigarette ash. The top cover can rotate, is installed on the top of the main cylinder body and is provided with a cigarette inserting hole. The cigarette clamping mechanism covers and seals the cigarette inserting hole, the blades are opened and closed along with rotation of the top cover, and after the blades are adjusted to be maximum, the top cover is released to drive the blades to rotate, and cigarettes with different cigarette diameters are automatically clamped. The heat conduction structure is located at a specific position of the inner cavity, and heat generated by cigarette combustion is conducted to an indication area on the surface of the main cylinder. The temperature-sensing color-changing area is arranged on the outer surface of the main cylinder body, changes color along with temperature and indicates the burning progress of the cigarette. According to the utility model, the adaptability of the product to cigarettes with different diameters is improved, the user experience is enhanced, the user is reminded by monitoring the burning progress in real time, and the health risk, peculiar smell generation and smoking set damage are reduced.

Description

Technical Field

[0001] This utility model relates to the technical field of smoking devices, and in particular to a portable smoking device that is adaptable to multiple sizes of smoke diameter and also has a burnout indicator. Background Technology

[0002] Traditional ashtrays, as a basic tool for collecting cigarette ash, are typically designed in a fixed manner, making them inconvenient to carry and requiring precise aiming of the cigarette to collect the ash. In certain usage scenarios, they can be distracting, restrict focus, and restrict hand movement. Furthermore, these ashtrays often lack effective sealing mechanisms, allowing ash to easily scatter due to external airflow, especially indoors and in vehicles. These shortcomings not only cause environmental pollution but can also pose safety hazards such as fires, car accidents, and falls.

[0003] To address these issues, existing technologies have proposed several solutions. For example, a portable multi-functional smoking device recently filed by the applicant adjusts the size of the upper insertion hole to match the relatively fixed lower insertion hole by rotating the top cover, or by using different sized accessories to accommodate cigarettes of different diameters. This allows users to easily adjust the device according to the size of the cigarette they wish to smoke, without needing to replace additional accessories, simplifying operation and avoiding the problem of lost accessories. However, existing portable smoking devices with solutions like the above still have certain drawbacks:

[0004] Current designs adapt to various cigarette diameters by pre-setting different sized holes or using different accessories. However, this method is difficult to meet the diversity of cigarette sizes in different countries and regions around the world, and the number of pre-set hole diameters is limited, making it impossible to perfectly fit all cigarettes. If different sized cigarette holder accessories are used for adaptation, the problem of cigarette holder accessories being easily lost still exists.

[0005] Existing smoking devices cannot alert users based on the burning progress of cigarettes, which can easily lead to the cigarette butt burning, affecting health and producing a pungent odor.

[0006] Parts designed to accommodate different smoke diameters are typically made of soft rubber, which can easily loosen or harden in a short time, thus directly affecting their lifespan or causing the product to become unusable.

[0007] In view of this, the inventor has specifically designed a portable smoking device that is adaptable to multiple smoke diameters and also has a burnout indicator, which leads to this invention. Utility Model Content

[0008] To solve the above problems, the technical solution of this utility model is as follows:

[0009] A portable smoking device that adapts to multiple smoke diameter sizes and also features a burnout indicator, comprising:

[0010] The main body has an internal cavity to hold the cigarette body and ash.

[0011] The top cover is rotatably located at the upper end of the main body, and the top surface has a cigarette insertion hole that connects to the inner cavity, making it easy to insert cigarettes;

[0012] The cigarette clamping mechanism includes several movable opening and closing blades that cover the cigarette insertion hole and an elastic reset structure. The opening and closing blades are surrounded to form a cigarette clamping opening of variable size. The elastic reset structure is used to make the opening and closing blades tend to close so as to reduce the cigarette clamping opening to a minimum and thus clamp cigarettes of different diameters.

[0013] A heat-conducting structure, pre-installed in the inner cavity, is used to conduct the cigarette combustion temperature to a specific location on the surface of the main tube.

[0014] The temperature-sensitive color-changing area is an indicator area located on the outer surface of the main tube, used to change color as the temperature rises to indicate the progress of cigarette combustion.

[0015] Preferably, the cigarette clamping mechanism is a rotary opening and closing structure formed by several opening and closing blades.

[0016] Preferably, the elastic reset structure is a torsion spring, and its two connecting ends are respectively fixed to the top cover and the main cylinder so that the opening and closing blades have an elastic reset tendency to close the cigarette insertion hole.

[0017] Preferably, an angle limiting structure is provided between the top cover and the upper end of the main cylinder to limit the rotation range of the top cover so as to limit the maximum and minimum opening and closing states of the opening and closing blades.

[0018] Preferably, a plurality of the opening and closing blades are pivotally connected to the periphery of the cigarette insertion hole, and the elastic reset structure is a torsion spring provided at the pivot shaft position of the opening and closing blades, which is used to make the opening and closing blades have an elastic reset tendency to cover and close the cigarette insertion hole. The opening and closing blades and the torsion spring constitute a flip-type opening and closing structure.

[0019] Preferably, the heat-conducting structure is made of a single piece of metal.

[0020] Preferably, the main cylinder has a ventilation window for communicating with the internal cavity and the external environment.

[0021] Preferably, it also includes an incense burner covering the ventilation window opening to reduce the smell of cigarette smoke escaping into the surrounding environment.

[0022] Preferably, the incense burner has a cage-shaped structure and its inner side forms a filling area.

[0023] Preferably, the thermochromic area is a thermochromic coating.

[0024] The beneficial effects of this utility model are as follows:

[0025] This invention uses a resiliently resettable cigarette clamping mechanism to automatically control the size of the cigarette clamping opening, thereby adapting to cigarettes of different diameters, improving the product's versatility and user experience. At the same time, the temperature-sensitive color-changing area changes color when heated, indicating the cigarette's burning progress and promptly reminding the user to avoid burning the cigarette to the butt, reducing health risks, odor generation, and damage to the smoking device.

[0026] At the same time, the cigarette clamping mechanism avoids the problem of existing soft rubber parts easily loosening and hardening in a short time, thus significantly extending the service life of the smoking device. Attached Figure Description

[0027] The accompanying drawings, which are provided to further illustrate the present invention and constitute a part of the present invention, illustrate exemplary embodiments of the present invention and are used to explain the present invention, but do not constitute an undue limitation of the present invention.

[0028] in:

[0029] Figure 1 This is a schematic diagram of the overall structure of Embodiment 1 of this utility model;

[0030] Figure 2 This is a schematic diagram of the lifting and lowering usage state of Embodiment 1 of this utility model;

[0031] Figure 3 This is an exploded structural diagram of Embodiment 1 of this utility model;

[0032] Figure 4 This is an exploded and cross-sectional structural diagram of Embodiment 1 of this utility model;

[0033] Figure 5 This is a partial exploded structural diagram of Embodiment 1 of this utility model;

[0034] Figure 6 This is a schematic diagram of a partial explosion structure highlighting the cigarette clamping mechanism in Embodiment 1 of this utility model;

[0035] Figure 7 This is a schematic diagram of a partial exploded structure highlighting the grip tube structure in Embodiment 1 of this utility model;

[0036] Figure 8 This is a partial structural diagram highlighting the assembly of the opening and closing blades in Embodiment 1 of this utility model;

[0037] Figure 9 This is a partial cross-sectional view of the torsion spring assembly in Embodiment 1 of this utility model;

[0038] Figure 10 This is a partial cross-sectional view of the quick-connect component and the top cover assembly in Embodiment 1 of this utility model.

[0039] Figure 11 This is a partial cross-sectional view of the opening and closing blades in Embodiment 2 of this utility model;

[0040] Figure 12 This is a schematic diagram illustrating the changes in the usage state of the opening and closing blades in conjunction with the cigarette in Embodiment 2 of this utility model;

[0041] Figure 13 This is a partial cross-sectional view of the fragrance material filling structure in Embodiment 3 of this utility model.

[0042] Label Explanation:

[0043] 10. Main cylinder; 11. Inner cavity; 12. Limiting protrusion; 13. Air inlet collar; 131. Air inlet hole; 20. Top cover; 21. Smoke insertion hole; 211. Guide surface; 22. Installation area; 221. Hinge hole; 23. Adjustment groove; 24. First step surface; 25. Second step surface; 26. Press-fit ring; 30. Smoke clamping mechanism; 31. Smoke clamping port; 32. Opening and closing blade; 33. First rotating shaft; 34. Second rotating shaft; 35. Elastic reset structure; 40. Heat-conducting structure; 41. Heat-conducting ring; 42. Heat-conducting inner cylinder; 43. Heat-conducting through hole; 50. Temperature-sensitive color-changing area; 60. Bottom cover; 61. Bottom; 62. Side; 63. Ash collection trough; 70. Holding cylinder; 71. Inner cylinder; 71 1. Limiting hole; 712. Protrusion; 713. Air guide channel; 714. Air inlet point; 72. Outer cylinder; 73. Hollowed-out groove; 74. Sheet structure; 80. Lifting cylinder; 81. Upper cylinder; 82. Lower cylinder; 83. Fixing hole; 84. Ventilation window; 85. Step groove; 90. Quick-connect piece; 91. Upper seat; 92. Lower seat; 93. Guide channel; 94. Guide groove; 95. Mounting cavity; 951. Decorative piece; 96. Adjustment hole; 97. First positioning shaft; 98. Second positioning shaft; 100. Incense cage; 101. Inner cage; 102. Outer cage; 103. Smoke passage area; 104. Connecting piece; 105. Filling area; 106. Fixing plate; 107. Substrate; 108. Fragrance material. Detailed Implementation

[0044] To make the technical problem to be solved, the technical solution, and the beneficial effects of this utility model clearer and more understandable, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain this utility model and are not intended to limit this utility model. Example 1

[0045] Please see Figures 1 to 10 This is a portable smoking device, as the preferred embodiment of the present invention, that adapts to multiple smoke diameters and also features a burnout indicator. It includes a main body 10, a top cover 20, a cigarette clamping mechanism 30, a heat-conducting structure 40, and a temperature-sensitive color-changing area 50, as detailed below:

[0046] like Figure 2 , 3 As shown, the main body 10 is cylindrical in shape and has an inner cavity 11 inside, which is used to hold the main body of the cigarette and the ash.

[0047] Specifically, such as Figure 2 , 3 As shown, the main cylinder 10, from bottom to top, includes a bottom cover 60, a gripping cylinder 70, a lifting cylinder 80, and a quick-connect component 90, wherein:

[0048] like Figure 2 , 3 As shown, the gripping tube 70 is cylindrical in shape, with a cylindrical cavity formed inside that is open at the top and bottom. The cavity is part of the inner cavity 11.

[0049] In particular, such as Figure 3 , 7 As shown, in order to facilitate the formation of different personalized appearances, the grip tube 70 is composed of an inner tube 71 and an outer tube 72 nested together. The inner tube 71 is preferably made of metal and serves as the connection base between the various structures. The outer tube 72 serves as the supporting component for the personalized appearance, reflecting different appearance designs.

[0050] like Figure 2 , 3 As shown, the lifting cylinder 80 is made of metal and includes an upper cylinder 81 and a lower cylinder 82 that are coaxially arranged as an integral unit. A step is formed between the upper cylinder 81 and the lower cylinder 82. A cylindrical cavity that runs vertically through the inner sides of the upper cylinder 81 and the lower cylinder 82 is formed, and the cavity is part of the inner cavity 11.

[0051] The lower cylinder 82 has a smaller outer diameter than the upper cylinder 81 and is clearance-fitted with the inner cavity 11 side wall of the holding cylinder 70, thereby achieving lifting and lowering coordination between the lifting cylinder 80 and the holding cylinder 70.

[0052] Furthermore, the connection between the lifting cylinder 80 and the gripping cylinder 70 can also be achieved through an upper insertion structure. Specifically, the upper end of the gripping cylinder 70 is recessed to form a connecting end, and the lifting cylinder 80 is slidably fitted onto this connecting end, thus achieving a sliding connection between the lifting cylinder 80 and the gripping cylinder 70 in another manner. This embodiment only describes the sliding connection method where the lifting cylinder 80 is inserted into the inner side of the upper end of the gripping cylinder 70, but this is not intended to limit the connection method.

[0053] Furthermore, in order to achieve the limiting between the lower cylinder 82 and the gripping cylinder 70, a limiting member 12, a fixing hole 83, and a limiting hole 711 are also included. The fixing hole 83 is opened on the side wall of the lower cylinder 82 and is located near the bottom. The limiting hole 711 is vertically distributed along the side wall of the inner cylinder and is linear. The limiting member is pin-shaped, and its periphery is recessed inward to form a limiting annular groove 121 that is adapted to the diameter of the fixing hole. The end of the limiting member and located on one side of the limiting annular groove 121 forms a limiting end 122.

[0054] The limiting ring groove 121 on the limiting component allows it to smoothly engage with the fixing hole 83. At this time, the limiting end 122 is located at the position protruding from the surface of the inner cylinder 71 and penetrating into the inner cavity 11. After the lower cylinder 82 penetrates into the inner cavity 11, the limiting hole 711 on the lower cylinder aligns with the fixing hole 83. At this time, the limiting end 122 can just penetrate into the limiting hole 711. Thus, when the lifting cylinder 80 slides up and down, under the restriction of the limiting end 122, it can only slide within the vertical extension distance of the limiting hole 711.

[0055] Alternatively, the position of the fixing hole 83 can be interchanged with that of the limiting hole 711, and the orientation of the limiting member will be reversed accordingly, which can also limit the lifting range of the lifting cylinder 80.

[0056] In addition, such as Figure 2 , 3 As shown in Figure 4, a ventilation window 84 is provided on the side wall of the lower cylinder 82. When the ventilation window 84 protrudes from the upper surface of the grip cylinder 70, it allows gas circulation between the inner cavity 11 and the external environment, thereby providing a combustion environment for the cigarette in the inner cavity 11, facilitating the user's use of the smoking device for smoking and for collecting ash. Conversely, when the ventilation window 84 is hidden inside the grip cylinder 70 along with the lower cylinder 82, the gas circulation between the inner cavity 11 and the external environment is cut off, facilitating the user's extinguishing of the cigarette.

[0057] like Figure 2 , 3 As shown, in this embodiment, the ventilation window 84 is distributed in an arc shape around the outer periphery of the lower cylinder 82.

[0058] like Figure 4 , 5 As shown in Figure 6, the quick-connect component 90 includes a cylindrical lower seat 92 and a disc-shaped upper seat 91. The upper seat 91 and the lower seat 92 form a guide channel 93 that runs vertically through each other. The outer diameter of the lower seat 92 is adapted to the inner diameter of the upper cylinder 81. The bottom of the outer periphery of the lower seat 92 is provided with an external thread, and the top of the inner side of the upper cylinder 81 is provided with an internal thread to facilitate threaded locking between the lower seat 92 and the upper cylinder 81. The outer diameter of the upper seat 91 is slightly larger than that of the lower seat 92 to form a connection base with the top cover 20.

[0059] like Figure 4 , 5As shown in Figures 6 and 7, the top cover 20 is rotatably mounted on the upper end of the main cylinder 10, and the top surface is provided with a cigarette insertion hole 21 that communicates with the inner cavity 11, so as to facilitate the insertion of cigarettes.

[0060] Specifically, the inner bottom of the top cover 20 is recessed to form an installation area 22, and a cigarette insertion hole 21 is opened through the center of the top surface of the top cover 20. The diameter of the cigarette insertion hole 21 is set to be larger than the diameter of the largest cigarettes currently available in the market in different regions, so as to facilitate the insertion of cigarettes of various sizes.

[0061] like Figure 4 , 5 As shown, for further convenience, the top surface of the top cover 20 is provided with an arc-shaped guide surface 211 at the opening of the cigarette insertion port. When the cigarette is inserted, it can be smoothly inserted into the cigarette insertion hole 21 along the guide surface 211, and then pass through the installation area 22 inside the top cover 20 and the guide channel 93 inside the quick-connect piece 90 before entering the inner cavity 11. This allows for subsequent smoking in conjunction with the lifting and lowering of the lifting cylinder 80.

[0062] Regarding the method of lighting a cigarette, a corresponding lighting device can be built into the inner cavity 11, or the cigarette can be lit first and then inserted into the smoking device; there is no limitation on this.

[0063] like Figure 5 , 6 As shown in Figure 8, the cigarette clamping mechanism 30 covers and closes the cigarette insertion hole 21, and has a cigarette clamping opening 31 whose size is controlled by the rotation and opening of the top cover 20, so as to clamp cigarettes of different sizes. In this embodiment, the cigarette clamping mechanism 30 is a rotating opening and closing structure formed by a plurality of opening and closing blades 32. The plurality of opening and closing blades 32 surround each other to form a cigarette clamping opening 31 of variable size. The rotation and opening of the opening and closing blades 32 are achieved as follows:

[0064] The opening and closing blade 32 is an arc-shaped rotating blade and is provided with three blades. The two ends of the opening and closing blade 32 are respectively provided with a first rotating shaft 33 and a second rotating shaft 34, and the first rotating shaft 33 and the second rotating shaft 34 are respectively provided on the upper and lower opposite surfaces of the opening and closing blade 32. The inner bottom surface of the installation area 22 is evenly provided with three hinge holes 221 around the cigarette insertion port. The upper end surface of the upper seat 91 is provided with three linear guide grooves 94 evenly distributed around the guide channel 93, and the three guide grooves 94 are all distributed radially along the upper seat 91.

[0065] The installation process of the opening and closing blade 32 is as follows:

[0066] After axially aligning the top cover 20 with the quick-connect piece 90, rotate the top cover 20 so that its three hinge holes 221 are respectively aligned with the three guide grooves 94 on the upper end face of the upper seat 91. Insert the three first rotating shafts 33 into the three hinge holes 221 respectively. Then assemble the top cover 20 onto the upper seat 91 so that the three second rotating shafts 34 are respectively inserted into the guide grooves 94 adjacent to the first rotating shafts 33 at the other end, and the three second rotating shafts 34 must be located in different guide grooves 94. The opening and closing blades 32 are stacked alternately in sequence, finally forming as shown in the figure. Figure 8 The triangular shape shown, with three opening and closing blades 32 forming a closed area, can close the cigarette insertion hole 21 when it covers the area below it.

[0067] When the top cover 20 rotates forward, the three hinge holes 221 drive the three first rotating shafts 33 to rotate forward around the second rotating shaft 34 at their other ends. At the same time, the second rotating shaft 34 moves adaptively along the guide groove 94 in a direction away from the central axis of the quick-connect member 90. The gap in the middle area of ​​the three opening and closing blades 32 gradually increases, forming a cigarette clamping opening 31 with a gradually increasing opening, so as to facilitate the insertion of cigarettes. Conversely, when the top cover 20 rotates in the reverse direction, the three hinge holes 221 drive the three first rotating shafts 33 to rotate in the reverse direction around the second rotating shaft 34 at their other ends. At the same time, the second rotating shaft 34 moves adaptively along the guide groove 94 in a direction close to the central axis of the quick-connect member 90. The gap in the middle area of ​​the three opening and closing blades 32 gradually decreases, so that the cigarette clamping opening 31 gradually closes. When it closes until the opening and closing blades 32 contact the cigarette, the optimal opening size is formed, forming an adaptive clamping of the cigarette.

[0068] With the above structural design, the size of the cigarette clamp 31 can be controlled by rotating the top cover 20, thereby adapting to different cigarette diameters and enhancing the versatility of the smoking device.

[0069] like Figure 4 , 5 As shown in Figure 6, in order to achieve automated cigarette clamping, the cigarette clamping mechanism 30 also includes an elastic reset structure 35, which is used to force the rotating top cover 20 to elastically reset so as to drive the cigarette clamping opening 31 to close to the minimum limit, so as to accommodate various cigarette diameters. In this embodiment, the elastic reset structure 35 is a torsion spring, and its two connecting ends are respectively fixed to the top cover 20 and the upper end of the main cylinder 10. The specific implementation is as follows:

[0070] like Figure 4 , 6As shown in Figure 9, the bottom of the quick-connect member 90 is recessed inward to form an annular mounting cavity 95 surrounding the guide channel 93. The side wall of the upper seat 91 forms an adjustment hole 96 that communicates with the mounting cavity 95 and is distributed in an arc shape. A first positioning shaft 97 is inserted through the side wall of the mounting cavity 95. The first positioning shaft 97 protrudes from the side wall of the mounting cavity 95 to form the structural basis for the end of the stop torsion spring. One end of the torsion spring is limited to the first positioning shaft 97. The main body of the torsion spring is arranged around the periphery of the guide channel 93 in the mounting cavity 95, and its other end protrudes through the adjustment hole 96 and protrudes from the outer surface of the upper seat 91. Under the action of the torsion spring's elastic force, the end of the torsion spring protruding from the adjustment hole 96 overlaps one of the side walls in the horizontal direction of the adjustment hole 96.

[0071] Combination Figure 8 To facilitate the automatic rotation and reset of the top cover 20 in conjunction with the torsion spring structure, an adjustment groove 23 is formed around the mounting area 22 on the inner side wall of the top cover 20. The end of the torsion spring extending out of the adjustment hole 96 extends into the adjustment groove 23. Thus, as the top cover 20 rotates (towards the direction of torsion spring compression), the adjustment groove 23 drives the end of the torsion spring to rotate in the direction of torsion spring compression. The end of the torsion spring rotates along the side wall of the adjustment hole 96 towards the other side wall, allowing the torsion spring to store energy. During this process, the opening and closing blade 32 opens. After the user releases the top cover 20, the end of the torsion spring, under the rebound action, drives the adjustment groove 23 to automatically return to its original position, thereby automatically closing the opening and closing structure. In this way, through the automatic elastic reset of the torsion spring, the user only needs to rotate the top cover 20 to open the cigarette clamping opening 31 to a certain limit and insert a cigarette, then release the top cover 20, causing the cigarette clamping opening 31 to automatically shrink to the position of clamping the side wall of the cigarette, thus realizing the automatic cigarette clamping function.

[0072] To prevent the opening and closing blades 32 from excessively opening and closing, causing deformation, an angle limiting structure is provided between the top cover 20 and the upper end of the main cylinder 10 to limit the rotation range of the top cover 20. The specific structure is as follows:

[0073] like Figure 5 , 6As shown in Figure 8, the adjustment groove 23 is arc-shaped and distributed around the perimeter of the installation area 22. The central angle of the adjustment groove 23 is equal to that of the adjustment hole 96. A second positioning shaft 98 is inserted through the outer wall of the quick-connect component 90 and located on one side of the adjustment hole 96. The second positioning shaft 98 protrudes from the outer wall of the quick-connect component 90. The position of the second positioning shaft 98 is opposite to that of the torsion spring in the relaxed state that protrudes from the adjustment hole 96. The two are located on two different side walls of the adjustment hole 96. When the top cover 20 is assembled with the quick-connect component 90, the second positioning shaft 98 is placed into the adjustment groove 23. Therefore, when the top cover 20 rotates, the side wall of the adjusting groove 23 drives the end of the torsion spring to move toward the other side of the adjusting hole 96. When the aforementioned side wall of the adjusting groove 23 contacts the second positioning shaft 98, it is the maximum rotation position in that direction. Conversely, under normal conditions, the torsion spring forces the top cover 20 to be in the initial position. At this time, the end of the torsion spring contacts one side wall of the adjusting groove 23, and the second positioning shaft 98 contacts the other side wall of the adjusting groove 23, preventing the top cover 20 from being further driven by the torsion spring and forming the maximum rotation position of the top cover 20 in that direction.

[0074] By using the second positioning shaft 98 in conjunction with the adjustment groove 23, the rotation range of the top cover 20 can be limited, thereby limiting the maximum and minimum states of the opening and closing blade 32, so as to fully avoid deformation caused by excessive rotation of the opening and closing blade 32.

[0075] like Figure 4 , 6 As shown, the heat-conducting structure 40 includes a heat-conducting ring plate 41 and a heat-conducting inner cylinder 42 that extends vertically along the middle of the heat-conducting ring plate 41. The heat-conducting inner cylinder 42 extends axially to form a heat-conducting through hole 43 that is connected to the guide channel 93. The heat-conducting through hole 43 penetrates the heat-conducting ring plate 41 to achieve communication with the guide channel 93.

[0076] The extension length of the guide channel 93 places it inside the mounting cavity 95. The design length of the heat-conducting inner cylinder 42 extends to a position flush with the lower end face of the lower seat 92. The entire heat-conducting structure 40 is made of a single piece of metal. Thus, since the quick-connect piece 90 is located below the cigarette insertion hole 21, when a cigarette is inserted into the cigarette insertion hole 21, the part of its body near the cigarette butt is within the coverage area of ​​the heat-conducting through hole 43. When the cigarette burns to the above range, the heat of combustion is transferred through the heat-conducting inner cylinder 42, conducted along the heat-conducting ring 41 to the surface of the quick-connect piece 90, and then along the quick-connect piece 90 to the outer periphery of the upper cylinder 81. When it is transferred to the thermochromic area 50 on the outer wall of the upper cylinder 81, the thermochromic material is heated and eventually changes color.

[0077] Meanwhile, the torsion spring is hidden in the mounting cavity 95 within the coverage area of ​​the heat-conducting ring plate 41. Therefore, when the smoking device needs to be opened for assembly or replacement of parts, the user can only see the heat-conducting ring plate 41 and will not find the internal torsion spring structure, thus fully maintaining the overall aesthetics of the smoking device. At the same time, the torsion spring structure hidden inside can also avoid contact with the external environment, keeping it relatively stable and fully improving its durability.

[0078] like Figure 4 , 5 As shown, when the top cover 20 is assembled with the quick-connect piece 90, according to the above structure, there is only a circumferential rotation limit between the second positioning shaft 98 and the adjusting groove 23, while there is no corresponding limit in the axial direction of the quick-connect piece 90. At this time, the top cover 20 can still be picked up directly from the top in the vertical direction.

[0079] To achieve a stable axial connection between the top cover 20 and the quick-connect fitting 90, this embodiment adopts the following structure:

[0080] First, such as Figure 4 As shown, the inner diameter of the mounting area 22 on the inner side of the top cover 20 is adapted to the outer diameter of the upper seat 91 of the quick connector 90, so that the upper seat 91 of the quick connector 90 can be stably placed into the mounting area 22; secondly, two stepped first step surfaces 24 and second step surfaces 25 are provided on the lower side of the mounting area 22 and near the bottom opening of the top cover 20. The first step surface 24 and the second step surface 25 are both distributed in a ring around the periphery of the mounting area 22, and the diameter of the second step surface 25 is larger than that of the first step surface 24. The second step surface 25 is provided with internal threads.

[0081] When the quick-connector 90 is placed into the installation area 22, the bottom surface of its upper seat 91 is flush with the first step surface 24. In this embodiment, an annular pressure ring 26 with external threads that engages with the internal threads on the second step surface 25 forms a limit on the upper seat 91. The inner diameter of the pressure ring 26 is between the diameters of the lower seat 92 and the upper seat 91. Thus, when the pressure ring 26 is screwed into the internal threads on the first step surface 24, it forms a stop on the bottom surface of the upper seat 91, preventing it from detaching from the top cover 20 axially.

[0082] like Figure 3 , 4 As shown in Figure 5, the temperature-sensitive color-changing area 50 is located in the indicator area on the outer surface of the main cylinder 10, and is used to change color with increasing temperature to indicate the progress of cigarette combustion.

[0083] In this embodiment, the thermosensitive color-changing area 50 can be an annular area surrounding the upper cylinder 81, or it can be a local area separately opened on the outer wall of the upper cylinder 81, such as a circle, direction or special shape, etc., which is not limited here.

[0084] In this embodiment, the specific position in the inner cavity 11 refers to the position near the cigarette butt after the cigarette is inserted and clamped, that is, the position where the cigarette is about to burn out. In this embodiment, it is the position opposite to the upper cylinder 81. When the cigarette burns to this specific position, the heat-conducting structure 40 absorbs the heat of the burning smoke and conducts it to the corresponding indicator area on the surface of the main cylinder 10. After the indicator area heats up to the response temperature of the temperature-sensitive color-changing area 50, the temperature-sensitive color-changing area 50 changes color, indicating to the user that the cigarette has burned to the end of the cigarette body, and the lifting cylinder 80 can be lowered to hide the ventilation window 84 for extinguishing the cigarette.

[0085] Specifically, in this embodiment, the heat-conducting structure 40 is a cylindrical structure made of an integral metal material.

[0086] In this embodiment, the specific position and the indicator area are preferably the position corresponding to the outer surface of the lifting cylinder 80. This area is the area operated by the user. The metal material can enhance the operating feel and can also stably conduct heat, so that the temperature-sensitive color-changing area 50 on the outer surface of the upper cylinder 81 can be stably triggered.

[0087] like Figure 3 , 4 As shown in Figure 5, it also includes an incense burner covering the ventilation window opening to reduce the smell of cigarette smoke escaping into the surrounding environment.

[0088] Specifically, the incense burner includes an inner cage 101 directly opposite the smoke-clamping opening 31 and an outer cage 102 integrally connected to the outside of the inner cage 101. The outer diameter of the outer cage 102 is adapted to the inner diameter of the inner side of the lifting cylinder 80, so that it can be embedded in the inner cavity 11 of the inner side of the lifting cylinder 80.

[0089] The inner side of the inner cage 101 forms a vertically connected smoke-passing area 103. The smoke-passing area 103, the guide channel 93, the cigarette clamping port 31, and the cigarette insertion hole 21 are all located on the central axis of the smoking device, which facilitates the insertion of cigarettes.

[0090] In this embodiment, the bottoms of the inner cage 101 and the outer cage 102 are integrally connected by an annular connecting piece 104. Ventilation holes (not shown in the figure) are provided on the connecting piece 104, the inner cage 101 and the outer cage 102. In this embodiment, the connecting piece 104, the inner cage 101 and the outer cage 102 are integrally bent and deformed into a mesh structure. The connecting piece 104, the inner cage 101 and the outer cage 102 enclose a filling area 105 with an open top. The top of the filling area 105 is connected and closed by an annular fixing plate 106.

[0091] like Figure 4As shown, in order to facilitate the installation and fixing of the incense burner 100, in this embodiment, a stepped groove 85 adapted to the outer diameter of the outer cage 102 is opened in the inner cavity 11 of the inner side of the lifting cylinder 80. The part above the stepped groove 85 extends directly to the position where it connects with the internal thread at the upper end of the lifting cylinder 80, and the inner diameter of the part below the stepped groove 85 is smaller than the stepped groove 85. Thus, the stepped groove 85 restricts the lowest installation position of the incense burner 100 after it is inserted from the upper end of the lifting cylinder 80.

[0092] like Figure 4 As shown, in order to further cooperate with the ventilation window 84 to achieve gas circulation, smoke dispersion and soot interception, the step slot 85 is set below the lowest position of the ventilation window 84. Thus, when the outer cage 102 is inserted into the step slot 85, it completely covers the inner side of the ventilation window 84, sealing the ventilation window 84. As a filter structure of the ventilation window 84, it achieves gas circulation, smoke dispersion and soot interception to prevent it from falling.

[0093] like Figure 4 As shown, the outer diameter of the outer cage 102 is adapted to the outer diameter of the lower seat 92, and the vertical height of the outer cage 102 is designed such that when the lower seat 92 of the quick-connect piece 90 is fully screwed into the internal thread of the upper opening of the lifting cylinder 80, the lower end face of the quick-connect piece 90 just contacts the upper end face of the incense cage 100, thereby pressing and limiting it between the stepped groove 85 and the quick-connect piece 90.

[0094] Preferably, the thermochromic area 50 is a coating structure formed by applying thermochromic pigment to the surface of the main cylinder 10, or a thermochromic sticker.

[0095] like Figure 3 , 4 As shown, in order to further facilitate the collection and cleaning of soot, a bottom cover 60 is installed at the bottom of the grip tube 10. Thus, by opening the bottom cover 60, the bottom of the inner cavity 11 can be opened or closed, making it convenient to clean the soot and other garbage accumulated in the inner cavity 11.

[0096] Furthermore, such as Figure 3 , 4 As shown in Figure 7, an air inlet ring 13 is provided at the bottom of the outer cylinder 72. The air inlet ring 13 is fitted onto the bottom of the inner cylinder 71. The outer diameter of the air inlet ring 13 is the same as that of the outer cylinder 72, so that the air inlet ring 13 is flush with the outer surface of the outer cylinder 72, thereby achieving an aesthetic purpose.

[0097] Several air intake holes 131 are formed through the outer periphery of the air intake ring 13, which serve as the basis for air intake.

[0098] To facilitate air intake into the inner cavity 11, the lower half of the inner wall of the inner cylinder 71 is narrowed to form a protrusion 712 extending beyond the wall of the inner cavity 11. Several air guide channels 713 are formed on the inner wall above the protrusion 712, extending downwards to the bottom of the protrusion 712. The depth of the air guide channels 713 is the same as the wall thickness of the upper half of the inner cylinder 71, thus allowing the outer side of the air guide channels 713 to communicate with the inner wall of the outer cylinder 72. Furthermore, the air guide channels 713 are located within the protrusion 712. An air inlet 714 is formed at the upper end of the outer cylinder 72, thereby allowing the air guide channel 713 to communicate with the external environment below the bottom of the outer cylinder 72. In addition, the lowest position of the air guide channel 713 is designed such that when the air inlet sleeve 13 is fitted on the inner bottom of the inner cylinder 71, the air inlet hole 131 corresponds to the lowest position of the air guide channel 713, so that external air can enter the air guide channel 713 along the air inlet hole 131, rise along the air guide channel 713 to the air inlet 714, and then enter the inner cavity 11.

[0099] Furthermore, in order to control the opening and closing of the air passage 713 in conjunction with the raising and lowering of the lifting cylinder 80 and the opening and closing of the vent 84, the uppermost position of the protrusion 712 is designed such that when the lifting cylinder 80 is fully lowered into the inner cavity and at its lowest position, the lowest position of the lower cylinder 82 is exactly in contact with the upper end face of the protrusion 712. This allows the air inlet 714 to be sealed when the lifting cylinder 80 is lowered into the inner cavity 11, preventing the smoke from escaping when the smoking device is not in use. When the smoking device is in use, the lifting cylinder 80 is raised, and the vent 84 is exposed. At this time, the lower cylinder 82 rises to a position higher than the air inlet 714, and the air inlet 714 is reconnected with the inner cavity 11. This allows the air inlet 131, the air passage 713, and the air inlet 714 to form a passage, facilitating the introduction of fresh air from the bottom of the smoking device when the user smokes, thereby actively circulating the air in the inner cavity 11.

[0100] Specifically, in this embodiment, there are several air inlets 131 along the periphery of the air inlet collar 13 and they are divided into two groups. The two groups of air inlets 131 are symmetrically distributed about the center of the air inlet collar 13. The number and position of the air guide channel 713 and the air inlet point 714 correspond to the air inlets 131.

[0101] like Figure 4 , 7 As shown, in this embodiment, the bottom cover 60 is divided into a disc-shaped bottom 61 and a side portion 62 that is vertically protruding from the axial upward side of the bottom 61. The side portion 62 is cylindrical, and a dust collection groove 63 is formed on its inner side. The outer diameter of the side portion 62 is adapted to the inner diameter of the protrusion 712, and the two are connected by threads or snaps. Thus, the bottom cover 60 can be fixedly connected to the lower end of the holding cylinder 10 to realize the functions of dust collection and dust removal. Example 2

[0102] Please see Figures 11-12 This is a portable smoking device that adapts to multiple sizes of smoke diameter and also has a burnout indicator, which is the preferred embodiment of this utility model. The difference from the first embodiment is that a number of opening and closing blades 32 are pivotally connected to the periphery of the cigarette insertion hole 21, and the elastic reset structure 35 is a torsion spring provided at the pivot position of the opening and closing blades 32, which is used to make the opening and closing blades 32 have an elastic reset tendency to cover and close the cigarette insertion hole 21. The opening and closing blades 32 and the torsion spring constitute a flip-type opening and closing structure.

[0103] Specifically, in this embodiment, the opening and closing blades 32 are evenly distributed around the periphery of the cigarette insertion hole 21, and when the opening and closing blades 32 are completely attached to the lower end of the cigarette insertion hole 21, the cigarette insertion hole 21 is closed. At this time, the opening and closing blades 32 are elastically pressed against the lower end of the cigarette insertion hole 21 under the action of the torsion spring.

[0104] Combination Figure 12 When the cigarette is inserted into the cigarette insertion hole 21, the lower end of the cigarette first contacts the movable end of the opening and closing blade 32. As the cigarette continues to pass through, it pushes open several opening and closing blades 32, causing the opening and closing blades 32 to swing downward around their pivot axis. Under the action of the torsion spring, the opening and closing blades 32 tend to return to their initial state. Thus, when the cigarette is completely inserted into the cigarette insertion hole, several opening and closing blades 32 can elastically press against the outer periphery of the cigarette, automatically clamping the cigarette. Example 3

[0105] Please see Figure 13 This is a portable smoking device that adapts to multiple sizes of smoke diameter and also has a burnout indicator, which is the preferred embodiment of this utility model. The difference from the first embodiment is that the space between the inner cage 101 and the outer cage 102 is filled with fragrance material 108, which is used to diffuse fragrance and mix smoke to reduce the smell of cigarettes.

[0106] In this embodiment, the fragrance material 108 can be selected from substances that can emit fragrance, such as aromatherapy, spices, flowers, leaves, and sandalwood.

[0107] The beneficial effects of this utility model are as follows:

[0108] The cigarette clamping mechanism covers and seals the cigarette insertion hole 21. As the top cover rotates, the blade 32 opens and closes. After adjusting to its maximum position, releasing the top cover allows it to rotate the blade 32, automatically clamping cigarettes of different diameters. A heat-conducting structure 40 is located at a specific position within the inner cavity, conducting the heat generated by cigarette combustion to an indicator area on the surface of the main tube 10. A temperature-sensitive color-changing area 50 is located on the outer surface of the main tube, changing color with temperature to indicate the cigarette's burning progress. This invention improves the product's adaptability to cigarettes of different diameters, enhances the user experience, and reminds users of the burning progress in real time, reducing health risks, odor generation, and damage to the smoking device.

[0109] At the same time, the cigarette clamping mechanism avoids the problem of existing soft rubber parts easily loosening and hardening in a short time, thus significantly extending the service life of the smoking device.

[0110] The present invention has been described above with reference to the accompanying drawings. Obviously, the specific implementation of the present invention is not limited to the above-described manner. Any non-substantial improvements made using the inventive concept and technical solution of the present invention, or the direct application of the inventive concept and technical solution to other situations without modification, are all within the protection scope of the present invention.

Claims

1. A portable smoking device adaptable to multiple smoke diameters and featuring burnout indication, characterized in that, include: The main tube (10) has an internal cavity (11) for holding the main body of the cigarette and the ash. The top cover (20) is rotatably located at the upper end of the main cylinder (10), and the top surface is provided with a cigarette insertion hole (21) that connects to the inner cavity (11) for easy insertion of cigarettes; The cigarette clamping mechanism (30) includes several opening and closing blades (32) that move to cover the cigarette insertion hole (21) and an elastic reset structure (35). The several opening and closing blades (32) are surrounded to form a variable-sized cigarette clamping opening (31). The elastic reset structure (35) is used to make the several opening and closing blades (32) tend to close so as to reduce the cigarette clamping opening (31) to a minimum and thus clamp cigarettes of different diameters. A heat-conducting structure (40) is pre-installed in the inner cavity (11) to conduct the cigarette combustion temperature to a specific position on the surface of the main tube (10); The temperature-sensitive color-changing area (50) is an indicator area located on the outer surface of the main body (10) and is used to change color as the temperature rises to indicate the progress of cigarette combustion.

2. A portable smoking device according to claim 1, adaptable to multiple smoke diameters and featuring burnout indication, characterized in that, The cigarette clamping mechanism (30) is a rotating opening and closing structure formed by several opening and closing blades (32).

3. A portable smoking device according to claim 2, adaptable to multiple smoke diameters and also featuring burnout indication, characterized in that, The elastic reset structure (35) is a torsion spring and its two connecting ends are fixed to the top cover (20) and the main cylinder (10) respectively, so that the opening and closing blade (32) has an elastic reset tendency to close the cigarette insertion hole (21).

4. A portable smoking device according to claim 2, adaptable to multiple smoke diameters and also featuring burnout indication, characterized in that, An angle limiting structure is provided between the top cover (20) and the upper end of the main cylinder (10) to limit the rotation range of the top cover (20) so as to limit the maximum and minimum opening and closing states of the opening and closing blades (32).

5. A portable smoking device according to claim 1, adaptable to multiple smoke diameters and also featuring burnout indication, characterized in that, Several of the opening and closing blades (32) are pivotally connected to the periphery of the cigarette insertion hole (21). The elastic reset structure (35) is a torsion spring provided at the pivot position of the opening and closing blade (32) to make the opening and closing blade (32) have an elastic reset tendency to cover and close the cigarette insertion hole (21). The opening and closing blade (32) and the torsion spring constitute a flip-type opening and closing structure.

6. A portable smoking device according to claim 1, adaptable to multiple smoke diameters and also featuring burnout indication, characterized in that, The heat-conducting structure (40) is made of a single piece of metal.

7. A portable smoking device according to claim 1, adaptable to multiple smoke diameters and also featuring burnout indication, characterized in that, The main cylinder (10) has a ventilation window (84) for connecting the inner cavity (11) and the external environment.

8. A portable smoking device according to claim 7, adaptable to multiple smoke diameters and also featuring burnout indication, characterized in that, It also includes an incense burner (100) covering the ventilation window (84) opening to reduce the smell of cigarette smoke escaping into the surrounding environment.

9. A portable smoking device according to claim 8, adaptable to multiple smoke diameters and also featuring burnout indication, characterized in that, The incense burner (100) has a cage-shaped structure and a filling area (105) is formed on its inner side.

10. A portable smoking device according to claim 7, adaptable to multiple smoke diameters and also featuring burnout indication, characterized in that, The thermochromic area (50) is a thermochromic coating.

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