Self-cleaning electronic cigarette

Abstract

This utility model discloses a self-cleaning electronic cigarette, relating to the field of smoking device technology. The self-cleaning electronic cigarette features a cleaning plate that moves within the heating tube, with a first through-hole allowing airflow to naturally circulate within the heating chamber for the user to inhale. At the end of heating, the cleaning plate moves within the heating tube, pushing out the ash produced during tobacco combustion. Because the outer periphery of the cleaning plate is in close contact with the inner wall of the heating tube, it effectively cleans the ash adhering to the inner wall of the heating tube. This improves both the convenience and thoroughness of cleaning residual ash within the heating chamber, maintaining a relatively clean and hygienic environment, preventing odors, and enhancing the user experience.

Description

Technical Field

[0001] This utility model relates to the field of smoking accessories technology, and in particular to a self-cleaning electronic cigarette. Background Technology

[0002] Current electronic cigarettes typically produce vapor by dry-burning tobacco leaves, which is then inhaled by the user. Dry-burning involves heating the tobacco leaves to a low temperature to avoid complete combustion and reduce the production of harmful substances. The dry-burning process takes place inside the tube, but currently, the tube inside electronic cigarettes only has an opening at one end. Ash is produced during the dry-burning process, and it is difficult to clean the ash inside the tube (especially the ash adhering to the inner wall of the tube) when the dry-burning is finished, thus reducing the user experience. Utility Model Content

[0003] The main purpose of this invention is to propose a self-cleaning electronic cigarette, which aims to improve the problem of inconvenient cleaning of ash inside the dry-burning tube of current electronic cigarettes.

[0004] To achieve the above objectives, this utility model proposes a self-cleaning electronic cigarette, comprising:

[0005] case;

[0006] A heating element is disposed within the housing. Along the height direction of the housing, the heating element has a first end and a second end disposed opposite to each other, and both the first end and the second end are open.

[0007] A cleaning plate is movably disposed inside the heating tube, and the periphery of the cleaning plate is in contact with the inner wall of the heating tube. The cleaning plate has an initial position located at the second end, and the space inside the heating tube located between the cleaning plate and the first end constitutes a heating chamber for placing tobacco leaves.

[0008] A first through hole is provided through the cleaning plate in the height direction of the housing.

[0009] In one embodiment, the self-cleaning electronic cigarette further includes a driving member disposed within the housing, and the driving member is connected to the cleaning plate for driving the cleaning plate to move between the first end and the second end.

[0010] In one embodiment, the driving element includes:

[0011] A push rod, movable along the height direction of the housing and connected within the housing, has at least one end extending into the heating element for connection with the cleaning plate; and

[0012] An elastic element, located inside the housing, is used to drive the push rod to reset the cleaning plate inside the heating tube.

[0013] In one embodiment, a channel is provided through the push rod along the height direction of the housing, and the first through hole is located inside the channel along the height direction of the housing;

[0014] The end of the channel facing the cleaning plate is connected to the heating chamber through the first through hole, and the end of the channel away from the cleaning plate is connected to the outside.

[0015] In one embodiment, the first end is located above the second end, and the push rod extends outward from the second end of the heating tube;

[0016] The self-cleaning electronic cigarette also includes a mouthpiece, which is detachably covered at the first end of the heating tube, and the mouthpiece has a suction channel communicating with the heating chamber.

[0017] In one embodiment, the self-cleaning electronic cigarette further includes a push handle portion connected to the end of the push rod away from the heating element, and the radial dimension of the push handle portion is larger than the radial dimension of the push rod;

[0018] In the height direction of the housing, a second through hole is provided through the push handle portion, which communicates with the outside and the channel;

[0019] One end of the elastic element presses against the push handle portion, and the other end presses against the inside of the housing.

[0020] In one embodiment, the first end is located below the second end, and the push rod extends outward from the second end of the heating tube;

[0021] The self-cleaning electronic cigarette also includes a mouthpiece located above the push rod, with the mouthpiece connected to the push rod at one end facing the push rod;

[0022] In the height direction of the housing, a suction channel communicating with the channel is provided through the nozzle.

[0023] In one embodiment, the self-cleaning electronic cigarette further includes a cover, which is detachably disposed on the first end of the heating element;

[0024] In the height direction of the shell, the cover has a third through hole that connects to the outside and the heating chamber.

[0025] In one embodiment, the self-cleaning electronic cigarette further includes:

[0026] A heat insulation cylinder is fixedly installed inside the housing, the heat insulation cylinder is located outside the heating element, and the inner circumference of the heat insulation cylinder is spaced apart from the outer circumference of the heating element; and

[0027] A guide cylinder is fixedly installed inside the housing. One end of the push rod extending outward from the heating tube is housed within the guide cylinder. The guide cylinder is used to guide the push rod to move along the height direction of the housing.

[0028] In one embodiment, the self-cleaning electronic cigarette further includes a sealing ring disposed between the heat insulation cylinder and the heating element;

[0029] The sealing ring has two parts, one of which is located between the first end and the heat insulation cylinder, and the other is located between the second end and the heat insulation cylinder.

[0030] This utility model relates to the field of smoking device technology. The self-cleaning electronic cigarette features a cleaning plate that moves within the heating tube, with a first through-hole allowing airflow to naturally circulate within the heating chamber for the user to inhale. At the end of heating, the cleaning plate moves within the heating tube, pushing out ash produced during tobacco combustion. Because the outer periphery of the cleaning plate is in close contact with the inner wall of the heating tube, it effectively removes ash adhering to the inner wall. This improves both the convenience and thoroughness of cleaning residual ash from the heating chamber, maintaining a clean and hygienic environment, preventing odors, and enhancing the user experience. Attached Figure Description

[0031] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0032] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the self-cleaning electronic cigarette of this utility model;

[0033] Figure 2 This is a schematic diagram of a self-cleaning electronic cigarette according to the present invention, showing tobacco leaves inside the heating chamber;

[0034] Figure 3 This is a schematic diagram illustrating the cleaning of the heating chamber in an embodiment of the self-cleaning electronic cigarette of this utility model.

[0035] Figure 4 This is a schematic diagram showing the connection relationship between the heating element, push rod, and mouthpiece in an embodiment of the self-cleaning electronic cigarette of this utility model;

[0036] Figure 5 This is an embodiment of the self-cleaning electronic cigarette of the present invention. Figure 4 Enlarged schematic diagram of the structure at point A in the middle;

[0037] Figure 6 This is a schematic diagram of the overall structure of another embodiment of the self-cleaning electronic cigarette of this utility model;

[0038] Figure 7 This is a cross-sectional view of another embodiment of the self-cleaning electronic cigarette of this utility model;

[0039] Figure 8 This is another embodiment of the self-cleaning electronic cigarette of this utility model. Figure 7 Enlarged schematic diagram of the structure at point B;

[0040] Figure 9 This is a schematic diagram of the structure of the self-cleaning electronic cigarette heating tube of this utility model.

[0041] Explanation of icon numbers:

[0042] 1. Shell; 11. Insulation cylinder; 12. Guide cylinder; 13. Sealing ring; 14. Annular part;

[0043] 2. Heating element; 21. First end; 22. Second end; 23. Insulating structural component; 24. Heating wire; 25. Conductive component;

[0044] 3. Cleaning plate; 31. First through hole;

[0045] 4. Driving component; 41. Push rod; 411. Channel; 42. Elastic component;

[0046] 5. Cover body; 51. Third through hole;

[0047] 6. Suction nozzle; 61. Suction passage; 62. First extension; 63. Conical section;

[0048] 7. Push handle; 71. Second through hole;

[0049] 8. Magnetic component; 81. Protrusion; 9. Transition component; 91. First cylinder; 92. Second extension; 93. Third extension.

[0050] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0051] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model.

[0052] It should be noted that if the embodiments of this utility model involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a specific posture. If the specific posture changes, the directional indicators will also change accordingly.

[0053] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the use of "and / or" or "and / or" throughout the text includes three parallel solutions. For example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied simultaneously. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0054] Current electronic cigarettes typically produce vapor by dry-burning tobacco leaves, which is then inhaled by the user. Dry-burning involves heating the tobacco leaves to a low temperature to avoid complete combustion and reduce the production of harmful substances. The dry-burning process takes place inside the tube, but currently, the tube inside electronic cigarettes only has an opening at one end. Ash is produced during the dry-burning process, and it is difficult to clean the ash inside the tube (especially the ash adhering to the inner wall of the tube) when the dry-burning is finished, thus reducing the user experience.

[0055] Based on this, refer to Figures 1-9As shown, this application embodiment provides a self-cleaning electronic cigarette, including a housing 1, a heating element 2, and a cleaning plate 3; wherein, the heating element 2 is fixedly installed inside the housing 1, and in the height direction of the housing 1, the heating element 2 has a first end 21 and a second end 22 disposed opposite to each other, and both the first end 21 and the second end 22 are open; the cleaning plate 3 is movably disposed inside the heating element 2, and the periphery of the cleaning plate 3 is in contact with the inner wall of the heating element 2, thereby enabling the scraping and cleaning of the soot adhering to the inner wall of the heating element 2 when the cleaning plate 3 is driven to move inside the heating element 2; as Figure 2 , Figure 7 As shown, initially, the cleaning plate 3 is located inside the heating tube 2 and close to the second end 22, thereby forming a heating chamber for placing tobacco leaves in the space of the heating tube 2 between the cleaning plate 3 and the first end 21. The tobacco leaves are heated by the heating tube 2 in the heating chamber and dry-burned, thereby generating smoke, which is transmitted to the outside through the open first end 21 (for users to inhale).

[0056] In this embodiment, a cleaning plate 3 is moved inside the heating tube 2. This allows the cleaning plate 3 to move inside the heating tube 2 when the user finishes inhaling, thereby discharging the soot produced during the dry burning of tobacco leaves from the first end 21 of the heating chamber. As the cleaning plate 3 moves, the soot adhering to the inner wall of the heating tube 2 can be scraped and cleaned simultaneously, improving the thoroughness of soot cleaning. The above cleaning process is simple and convenient to operate, and does not require the assistance of external tools, improving the convenience of cleaning and helping to improve the user experience.

[0057] In this embodiment, as Figure 5 , Figure 8 As shown, a first through hole 31 is provided through the cleaning plate 3 along the height direction of the housing 1. The first through hole 31 is provided to allow external airflow to pass through the first through hole 31 and be discharged outward through the first end 21 of the heating tube 2. The open design at both ends allows external air to smoothly enter and exit the heating tube 2 when the smoker is inhaling, forming a natural flow. When the user inhales, the external airflow is drawn into the heating chamber and mixed with the smoke generated by the dry burning of tobacco leaves in the heating chamber. As a result, the smoke moves along with the flowing gas and is drawn into the smoker's body. It can be understood that there can be multiple first through holes 31 on the cleaning plate 3, thereby improving the efficiency of external airflow entering the heating chamber.

[0058] It is understandable that, such as Figure 9As shown, the heating element 2 includes an insulating structure 23 and a heating wire 24. The insulating structure 23 is tubular, and the heating wire 24 is provided on the inner and / or outer peripheral sides of the insulating structure 23. The heating wire 24 is electrically connected to a power supply component. The power supply component can be a battery (such as a lithium-ion battery) and can be installed inside the housing 11.

[0059] In this embodiment, the heating tube 2 is provided with a conductive element 25 that is electrically connected to the heating wire 24. There are two conductive elements 25, which are used to introduce and send current, thereby forming a complete closed circuit. The conductive element 25 is a conductive structural component with a certain hardness, such as copper or aluminum. This allows the conductive element 25 to be connected to the power supply equipment installed in the housing 1 and to supply power to the heating wire 24, thereby achieving a heating effect.

[0060] In this embodiment, the insulating structure 23 can be a ceramic structure with insulating and high temperature resistance properties, and the heating wire 24 should be evenly distributed on the peripheral surface of the insulating structure 23 to achieve uniform heating of the tobacco leaves in the heating chamber.

[0061] Reference Figure 2 , Figure 3 , Figure 4 , Figure 7 As shown in one embodiment of this application, the self-cleaning electronic cigarette also includes a driving member 4 disposed in the housing 1, and the driving member 4 is connected to the cleaning plate 3 for driving the cleaning plate 3 to move in the heating chamber; when the user finishes inhaling, the driving member 4 drives the cleaning plate 3 to move in the heating tube 2, and drives the cleaning plate 3 to move from the second end 22 to the first end 21 of the heating tube 2. During the movement of the cleaning plate 3, the soot produced by the dry burning of tobacco leaves is pushed out of the heating chamber through the first end 21, and the cleaning plate 3, under the pushing action of the driving member 4, scrapes and cleans the soot attached to the inner wall of the heating tube 2, thereby improving the thoroughness of cleaning the soot in the heating chamber.

[0062] Reference Figure 2 , Figure 3 , Figure 4 , Figure 7As shown, in one embodiment of this application, the driving component 4 includes a push rod 41 and an elastic element 42. The push rod 41 is movably connected to the housing 1 along the height direction of the housing 1, and one end of the push rod 41 extends into the heating tube 2. It can be understood that the push rod 41 extends into the heating tube 2 from the second end 22 and connects with the cleaning plate 3. The elastic element 42 is disposed in the housing 1. When the user drives the push rod 41 to move along the height direction of the housing 1 (synchronously driving the cleaning plate 3 to move in the heating tube 2), the elastic element 42 is compressed and stores energy. When cleaning is completed, the user removes the force applied to the push rod 41, so that the push rod 41 can automatically move towards the initial position under the action of the elastic element 42, and simultaneously drive the cleaning plate 3 to reset in the heating tube 2.

[0063] In this embodiment, the elastic element 42 serves two purposes: firstly, it improves the ease of cleaning for the user, automatically resetting the cleaning plate 3 and push rod 41 after the ash in the heating chamber is pushed outward; secondly, it also provides a certain degree of positioning for the cleaning plate 3, preventing unnecessary shaking or displacement of the cleaning plate 3 and push rod 41, thereby ensuring that the cleaning plate 3 and push rod 41 remain stably in their current positions under the action of the elastic element 42 when the user is sucking.

[0064] Reference Figure 2 , Figure 7 As shown, in one embodiment of this application, a channel 411 is provided inside the push rod 41 along the height direction of the housing 1, that is, the channel 411 passes through both ends of the push rod 41, as shown. Figure 5 As shown, the cleaning plate 3 is fixedly connected to one end of the push rod 41, and the first through hole 31 is located inside the channel 411 in the height direction of the housing 1. This allows one end of the channel 411 to be connected to the heating chamber through the first through hole 31, and the other end of the channel 411 to be connected to the outside. This allows both ends of the heating chamber to be connected to the outside along the height direction of the housing 1. When the smoker is inhaling, the outside air can smoothly enter and exit the heating pipe 2 and form a natural flow. When the user is inhaling, the outside air is drawn into the heating chamber through the channel 411 and the first through hole 31 and mixed with the smoke generated by the dry burning of the tobacco leaves in the heating chamber. This allows the smoke to be drawn into the smoker's body along with the flowing gas.

[0065] In this embodiment, the ash produced when the tobacco leaves are dry-burned in the heating tube 2 will inevitably fall down through the first through hole 31. In order to facilitate the cleaning and collection of the ash falling down from the first through hole 31, in this embodiment, the first through hole 31 is located inside the channel 411 in the height direction of the housing 1. This allows the ash produced when the tobacco leaves are dry-burned to fall down through the first through hole 31 into the channel 411, and then be discharged out of the housing 1 through the other end of the channel 411. This facilitates the collection of ash and prevents the ash from spreading inside the housing 1.

[0066] In this embodiment, as Figure 5 , Figure 8 As shown, an annular portion is coaxially provided on the side of the cleaning plate 3 facing the push rod 41, and the inner diameter of the annular portion is the same as the outer diameter of the push rod 41. This allows the end of the push rod 41 facing the cleaning plate 3 to be inserted into the annular portion, and the outer circumference of the push rod 41 to be in close contact with the inner circumference of the annular portion, thereby achieving the connection between the two. Alternatively, to further improve the stability of the connection between the two, fasteners or welding can be used to connect and fix the push rod 41 and the annular portion.

[0067] Reference Figure 6 , Figure 7 , Figure 8 As shown, in one embodiment of this application, a method for cooperating and installing a push rod 41 and a heating tube 2 is provided. In this embodiment, the first end 21 of the heating tube 2 is located above the second end 22, and the push rod 41 extends outward from the second end 22 to the heating tube 2. That is, in the height direction of the housing 1, the push rod 41 is located below the heating tube 2. At this time, the space inside the heating tube 2 between the cleaning plate 3 and the first end 21 constitutes a heating chamber for storing and heating tobacco leaves.

[0068] In this embodiment, the self-cleaning electronic cigarette also includes a mouthpiece 6, which is detachably attached to the first end 21 of the heating element 2. Figure 7 As shown, a suction channel 61 communicating with the heating chamber is provided inside the mouthpiece 6. When the mouthpiece 6 is placed over the first end 21 of the heating tube 2, the suction channel 61 inside the mouthpiece 6 is connected to the first end 21 of the heating chamber. It can be understood that when the mouthpiece 6 is placed over the first end 21 of the heating tube 2, the first end 21 of the heating tube 2 can only communicate with the outside world through the suction channel 61 inside the mouthpiece 6. Thus, the smoke generated by the dry burning of tobacco leaves in the heating chamber is drawn into the user's body through the suction channel 61.

[0069] In this embodiment, when the user finishes inhaling, the mouthpiece 6 is removed from the first end 21 of the heating tube 2, and the first end 21 of the heating tube 2 is opened again. The user drives the push rod 41 and moves the cleaning plate 3 from the second end 22 toward the first end 21 inside the heating tube 2, thereby pushing the ash produced when the tobacco leaves are dry-burned outward through the first end 21 to the outside of the heating chamber. Moreover, during the movement of the cleaning plate 3 inside the heating tube 2, the ash attached to the inner wall of the heating tube 2 is scraped off and cleaned.

[0070] It is understandable that the suction nozzle 6 can be detachably attached to the first end 21 of the heating element 2 in various ways, such as magnetic or threaded types; for example... Figure 7 As shown, a magnetic connection structure is provided. A magnetic element 8 is provided on the housing 1 and is arranged in a ring shape. The inner side of the magnetic element 8 is conical. A conical part 63 is provided at the end of the mouthpiece 6 facing the heating tube 2. The conical part 63 and the conical surface of the magnetic element 8 are engaged. The conical part 63 is made of a magnetic conductive material (such as iron). This allows the conical part 63 at the bottom of the mouthpiece 6 to be inserted into the inner side of the ring-shaped magnetic element 8, so that the conical part 63 and the conical surface of the magnetic element 8 are in close contact and the two are stably connected under the action of magnetic force. When the inhalation is finished and the ash in the heating chamber needs to be cleaned, the user first removes the mouthpiece 6 from the magnetic element 8 (so that the first end 21 of the heating tube 2 is in an open state), and then pushes the push rod 41 to perform the cleaning process.

[0071] In this embodiment, a method for fixing the magnetic component 8 within the housing 1 is provided, such as... Figure 7 As shown, a protrusion 81 extending toward the axial centerline away from the magnetic component 8 is provided on the periphery of one end of the magnetic component 8 facing the heating tube 2. An annular groove structure for accommodating the protrusion 81 is provided in the housing 1, thereby enabling the magnetic component 8 to be installed in the housing 1.

[0072] Reference Figure 6 , Figure 7 As shown, in one embodiment of this application, the self-cleaning electronic cigarette further includes a push handle portion 7, which is connected to the end of the push rod 41 away from the heating tube 2. The radial dimension of the push handle portion 7 is larger than the radial dimension of the push rod 41; as shown Figure 7 As shown, in the height direction of the housing 1, a second through hole 71 is provided through the push handle 7, which communicates with the outside and the channel 411. One end of the elastic member 42 presses against the push handle 7 and the other end presses against the inside of the housing 1. When cleaning, the user presses the push handle 7 and drives the push rod 41 to move from bottom to top in the housing 1. At the same time, the cleaning plate 3 of the belt moves from the second end 22 to the first end 21 in the heating tube 2 to clean the soot in the heating chamber.

[0073] In this embodiment, the push handle 7 is fixedly connected to the end of the push rod 41 away from the cleaning plate 3, such as... Figure 7 As shown, the channel 411 inside the push rod 41 and the second through hole 71 provided on the push handle 7 need to be arranged correspondingly in the height direction of the housing 1, so that when the first through hole 31 on the ash cleaning plate 3 falls down into the channel 411, it can be discharged outward through the second through hole 71 on the push handle 7.

[0074] It is understood that the push rod 41 and the push handle 7 can be connected by welding or by fasteners. In this embodiment, the connection method between the push rod 41 and the push handle 7 is not limited.

[0075] In this embodiment, to prevent the cleaning plate 3 from sliding out of the heating tube 2, such as Figure 7 As shown, a stepped portion is provided at the end of the push handle 7 away from the heating tube 2, and a stop portion that cooperates with the stepped portion is provided inside the housing 1. Through the stop cooperation between the stepped portion and the stop portion, the push handle 7 is restricted inside the housing 1 to ensure that the cleaning plate 3 will not slide out from inside the heating tube 2.

[0076] Reference Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 As shown, in one embodiment of this application, another implementation method for the cooperative installation of push rod 41 and heating tube 2 is provided; the first end 21 is located below the second end 22, and the push rod 41 extends outward from the second end 22 to the heating tube 2, that is, in the height direction of the housing 1, the push rod 41 is located above the heating tube 2.

[0077] In this embodiment, the self-cleaning electronic cigarette also includes a mouthpiece 6 located above the push rod 41. The mouthpiece 6 is connected to the push rod 41 at one end facing the push rod 41. In the height direction of the housing 1, a suction channel 61 communicating with the channel 411 is provided through the mouthpiece 6. When the mouthpiece 6 and the end of the push rod 41 away from the heating tube 2 are connected, the channel 411 in the push rod 41 and the suction channel 61 in the mouthpiece 6 are connected. This allows the smoke generated by the dry burning of tobacco leaves in the heating chamber to enter the suction channel 61 through the first through hole 31 and the channel 411 on the cleaning plate 3, and finally be inhaled into the body by the user.

[0078] In this embodiment, as Figure 2 As shown, the end of the suction nozzle 6 facing the push rod 41 can be configured to abut only against the end of the push rod 41 away from the heating tube 2, or it can be fixedly connected; exemplary, this embodiment provides a specific structure for the connection between the suction nozzle 6 and the heating tube 2, such as Figure 2As shown, a first extension 62 is provided on the periphery of the end of the suction nozzle 6 facing the heating tube 2, and the first extension 62 extends in a direction away from the suction channel 61, as shown. Figure 2 , Figure 3 As shown, an annular portion 14 is provided inside the housing 1 to stop and cooperate with the first extension 62; a transition member 9 is also provided between the suction nozzle 6 and the push rod 41. The transition member 9 is a T-shaped cylindrical structure, including a first cylindrical body 91 (both ends are connected to the outside), a second extension 92 connected to one end of the first cylindrical body 91, and a third extension 93 connected to the other end of the first cylindrical body 91; wherein the outer diameter of the first cylindrical body 91 is the same as the inner diameter of the suction channel 61, and the second extension 92 is provided on the periphery of the end of the first cylindrical body 91 inserted into the suction channel 61, and is closer to the first extension 62. A cylindrical body 91 extends in the direction of its axial centerline. A third extension 93 is provided on the periphery of one end of the first cylindrical body 91 that extends outward from the suction channel 61, and the third extension 93 extends in a direction away from the axial centerline of the first cylindrical body 91. One end of the elastic member 42 presses against the third extension 93, and the other end presses against an appropriate position inside the housing 1. Thus, under the action of the elastic member 42, the third extension 93 and the first extension 62 are pressed together, and the first extension 62 is pressed against the bottom of the annular portion 14, thereby limiting the suction nozzle 6 relative to the housing 1.

[0079] In this embodiment, as Figure 2 As shown, the smoke generated by the dry burning of tobacco leaves in the heating chamber first enters the channel 411 inside the push rod 41 through the first through hole 31 on the cleaning plate 3, and then enters the suction channel 61 upward through the channel 411, thereby realizing the user's suction process; it can be understood that a detachable cover can be provided on the first end 21 of the heating tube 2 to seal the first end 21 in the open state, so as to prevent the tobacco leaves in the heating chamber from falling out. In order to realize the natural flow of air in the heating chamber, holes need to be provided through the cover to realize the natural flow of air.

[0080] Understandably, when the user finishes inhaling, they remove the cap from the first end 21 of the heating tube 2, then press down on the mouthpiece 6. The transition piece 9 forces the push rod 41 to move downwards within the housing 1. Simultaneously, the cleaning plate 3 moves from the second end 22 to the first end 21 within the heating tube 2, pushing out the ash produced by the dry burning of tobacco leaves in the heating chamber through the opened first end 21, thus cleaning the ash (e.g., ...). Figure 3 The diagram shows the process of pressing down on the mouthpiece 6 and cleaning the soot in the heating chamber through the cleaning plate 3. For example, a tissue or similar material can be placed on the top of the mouthpiece 6 before pressing it down to prevent the hands from directly contacting the mouthpiece 6 and causing contamination.

[0081] Reference Figure 2 , Figure 3As shown, in one embodiment of this application, the self-cleaning electronic cigarette also includes a cover 5 (that is, the sealing part mentioned above). The cover 5 is detachably covered on the first end 21 of the heating tube 2. In the height direction of the housing 1, the cover 5 is provided with a third through hole 51 that connects to the outside and the heating chamber. When the user is inhaling, the cover 5 is placed on the first end 21 of the heating tube 2 to block the first end 21 and prevent the tobacco in the heating chamber from falling down through the first end 21. At the same time, the third through hole 51 on the cover 5 is used to realize the natural flow of air in the heating chamber for the smoker to inhale.

[0082] Understandably, the diameter of the third through hole 51 can be set to be smaller, and there can be multiple third through holes 51, thereby ensuring airflow (achieving natural flow) while preventing tobacco leaves from falling out of the third through hole 51.

[0083] In this embodiment, the cover 5 and the shell 1 can be connected by magnetic attraction or by thread. When it is connected by magnetic attraction, a magnetically attractive structural component, such as a magnet and a magnetic conductor, needs to be provided at the mating point between the shell 1 and the cover 5.

[0084] Reference Figure 2 , Figure 3 , Figure 7 As shown, in one embodiment of this application, the self-cleaning electronic cigarette further includes: a heat insulation cylinder 11 and a guide cylinder 12; wherein, the heat insulation cylinder 11 is fixedly installed inside the housing 1, and the heat insulation cylinder 11 is located outside the heating tube 2, and the inner circumferential side of the heat insulation cylinder 11 is spaced apart from the outer circumferential side of the heating tube 2, so that the gap between the heat insulation cylinder 11 and the heating tube 2 forms a heat insulation cavity. Since the thermal conductivity of gas is low, this means that the heat transfer speed in the gas is slow. Therefore, the heat insulation cavity can effectively slow down the transfer of heat from the heating tube 2 to the heat insulation cylinder 11. It is understood that the heat insulation cylinder 11 can be made of materials with good heat insulation performance, such as foam glass, polyester fiberboard, etc.

[0085] In this embodiment, the guide cylinder 12 is also fixedly installed inside the housing 1, and one end of the push rod 41 extending outward from the heating tube 2 is housed within the guide cylinder 12, which provides guidance and direction for the push rod 41 to move along the height direction of the housing 1 within the housing 1; Figure 2 As shown, in one embodiment, a hole is provided in the guide cylinder 12 that matches the outer diameter of the push rod 41, and the push rod 41 passes through the hole, thereby constraining and restricting the movement of the push rod 41 in the housing 1; in this embodiment, one end of the elastic member 42 presses against one end of the guide cylinder 12 near the heating tube 2, and the other end presses against the third extension 93 of the transition member 9.

[0086] In another embodiment, such as Figure 7As shown, the inner diameter of the guide cylinder 12 is matched with the outer diameter of the push handle 7, thereby restricting and constraining the movement of the push handle 7 within the housing 1 through the inner wall of the guide cylinder, thereby restricting and constraining the movement of the push rod 41 within the housing 1; in this embodiment, one end of the elastic member 42 presses against the end of the guide cylinder 12 near the heating tube 2, and the other end of the elastic member 42 presses against the push handle 7.

[0087] Reference Figure 2 , Figure 7 As shown in one embodiment of this application, the self-cleaning electronic cigarette also includes a sealing ring 13 disposed between the heat insulation cylinder 11 and the heating tube 2. There are two sealing rings 13, one of which is disposed between the first end 21 and the heat insulation cylinder 11, and the other sealing ring 13 is disposed between the second end 22 and the heat insulation cylinder 11.

[0088] like Figure 2 As shown, in one embodiment, the second end 22 and the first end 21 of the heating tube 2 are pressed against the sealing ring 13, and the outer periphery of the sealing ring 13 is in close contact with the inner wall of the heat insulation cylinder 11, thereby enclosing the space between the heating tube 2 and the heat insulation cylinder 11 (that is, the aforementioned heat insulation space) into a sealed space (the sealed heat insulation space can effectively reduce air convection), thereby further improving the heat insulation effect; in this embodiment, one sealing ring 13 is clamped between the first end 21 of the heating tube 2 and the inner wall of the housing 1, and the other sealing ring 13 is clamped between the guide cylinder 12 and the second end 22 of the heating tube 2, thereby achieving the positioning of the sealing ring 13.

[0089] like Figure 7 As shown, in another embodiment, the second end 22 and the first end 21 of the heating tube 2 also press against the sealing ring 13 respectively, and the outer periphery of the sealing ring 13 is in close contact with the inner wall of the heat insulation cylinder 11, thereby enclosing the space between the heating tube 2 and the heat insulation cylinder 11 (that is, the aforementioned heat insulation space) into a sealed space (the sealed heat insulation space can effectively reduce air convection), thereby further improving the heat insulation effect; in this embodiment, one end of the sealing ring 13 near the guide cylinder 12 presses against the second end 22 of the heating tube 2, and the other end presses against the guide cylinder 12, while one end of the sealing ring 13 away from the guide cylinder 12 presses against the first end 21 of the heating tube 2 and the end of the heat insulation cylinder 11 away from the guide cylinder 12, and the other end presses against the magnetic element 8 provided in the housing 1, thereby achieving the positioning of the sealing ring 13.

[0090] The above description is merely an exemplary embodiment of the present utility model and does not limit the patent scope of the present utility model. Any equivalent structural transformations made based on the technical concept of the present utility model and the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present utility model.

Claims

1. A self-cleaning electronic cigarette, characterized in that, include: case; A heating element is disposed within the housing. Along the height direction of the housing, the heating element has a first end and a second end disposed opposite to each other, and both the first end and the second end are open. A cleaning plate is movably disposed inside the heating tube, and the periphery of the cleaning plate is in contact with the inner wall of the heating tube. The cleaning plate has an initial position located at the second end, and the space inside the heating tube located between the cleaning plate and the first end constitutes a heating chamber for placing tobacco leaves. A first through hole is provided through the cleaning plate in the height direction of the housing.

2. The self-cleaning electronic cigarette as described in claim 1, characterized in that, The self-cleaning electronic cigarette also includes a driving component disposed within the housing, and the driving component is connected to the cleaning plate for driving the cleaning plate to move between the first end and the second end.

3. The self-cleaning electronic cigarette as described in claim 2, characterized in that, The driving component includes: A push rod, movable along the height direction of the housing and connected within the housing, has at least one end extending into the heating element for connection with the cleaning plate; and An elastic element, located inside the housing, is used to drive the push rod to reset the cleaning plate inside the heating tube.

4. The self-cleaning electronic cigarette as described in claim 3, characterized in that, The push rod has a channel extending through it along the height direction of the housing, and the first through hole is located inside the channel along the height direction of the housing. The end of the channel facing the cleaning plate is connected to the heating chamber through the first through hole, and the end of the channel away from the cleaning plate is connected to the outside.

5. The self-cleaning electronic cigarette as described in claim 4, characterized in that, The first end is located above the second end, and the push rod extends outward from the second end into the heating tube; The self-cleaning electronic cigarette also includes a mouthpiece, which is detachably covered at the first end of the heating tube, and the mouthpiece has a suction channel communicating with the heating chamber.

6. The self-cleaning electronic cigarette as described in claim 5, characterized in that, The self-cleaning electronic cigarette also includes a push handle, which is connected to the end of the push rod away from the heating element, and the radial dimension of the push handle is larger than the radial dimension of the push rod. In the height direction of the housing, a second through hole is provided through the push handle portion, which communicates with the outside and the channel; One end of the elastic element presses against the push handle portion, and the other end presses against the inside of the housing.

7. The self-cleaning electronic cigarette as described in claim 4, characterized in that, The first end is located below the second end, and the push rod extends outward from the second end of the heating tube; The self-cleaning electronic cigarette also includes a mouthpiece located above the push rod, with the mouthpiece connected to the push rod at one end facing the push rod; In the height direction of the housing, a suction channel communicating with the channel is provided through the nozzle.

8. The self-cleaning electronic cigarette as described in claim 7, characterized in that, The self-cleaning electronic cigarette also includes a cover, which is detachably attached to the first end of the heating element; In the height direction of the shell, the cover has a third through hole that connects to the outside and the heating chamber.

9. The self-cleaning electronic cigarette as described in any one of claims 3-8, characterized in that, The self-cleaning electronic cigarette also includes: A heat insulation cylinder is fixedly installed inside the housing, the heat insulation cylinder is located outside the heating element, and the inner circumference of the heat insulation cylinder is spaced apart from the outer circumference of the heating element; and A guide cylinder is fixedly installed inside the housing. One end of the push rod extending outward from the heating tube is housed within the guide cylinder. The guide cylinder is used to guide the push rod to move along the height direction of the housing.

10. The self-cleaning electronic cigarette as described in claim 9, characterized in that, The self-cleaning electronic cigarette also includes a sealing ring disposed between the heat insulation cylinder and the heating element; The sealing ring has two parts, one of which is located between the first end and the heat insulation cylinder, and the other is located between the second end and the heat insulation cylinder.

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