A low-temperature baking smoking device

Abstract

The present invention discloses a low-temperature baking smoking device, comprising: a housing, inside which a heating cavity for inserting a cigarette is slidably arranged; a heating element for heating the cigarette inserted in the heating cavity; a cleaning plug arranged at the bottom of the heating cavity so that residues generated after heating the cigarette are deposited thereon; a push rod fixedly installed in the housing and facing the cleaning plug; a trigger member fixedly connected to the heating cavity; such that when the trigger member is pressed, the cleaning plug moves towards the push rod along with the heating cavity to disengage the cleaning plug from the housing; when the trigger member is released, the heating cavity is reset under the action of a reset member. The difficult-to-clean substances generated during long-term use of the smoking device of the present invention will only remain on the cleaning plug in contact with the end of the cigarette. By disengaging the cleaning plug from the smoking device through the push rod for replacement or cleaning, thorough cleaning of the smoking device can be achieved.

Description

Technical Field

[0001] The present invention belongs to the technical field of smoking articles, and particularly relates to a low-temperature baking smoking device. Background Art

[0002] At present, the electronic smoking devices on the market mainly include two types. For example, the electronic cigarette that forms inhalable smoke by evaporating e-liquid and the low-temperature cigarette that forms inhalable smoke by heating / distilling tobacco materials at a low temperature (150 - 300 degrees Celsius). Compared with traditional combustible cigarettes, the working temperature of electronic cigarettes and low-temperature cigarettes is low, and the harmful components in the smoke generated by the e-liquid or low-temperature cigarette sticks they use are far less than those of traditional combustible cigarettes. Therefore, using electronic cigarettes or low-temperature cigarettes can greatly avoid the adverse effects of cigarettes on the human body.

[0003] After the low-temperature smoking device has been widely used on the market, the voices of many customers have been obtained, including both good and bad feedback. Of course, customers basically recognize this new technology product of the low-temperature smoking device because it can bring health to users. There are also some disadvantages. For example, a small amount of tar will be generated at the bottom after long-term use. Since the tar is fluid and accumulates at the bottom of the product's heating cavity, it doesn't look clean, which brings doubts to customers. If not effectively cleaned, it will increase over time, seriously blocking the air intake channel and even flowing to the product surface, resulting in an unsmooth airway and an unclean surface of the product, bringing psychological resistance to customers. Summary of the Invention

[0004] This application aims to at least solve one of the technical problems existing in the prior art. For this reason, one of the purposes of the present invention is to provide a low-temperature baking smoking device that can facilitate the cleaning of the heating cavity.

[0005] To solve the above technical problems, the present invention adopts the following technical solutions:

[0006] A low-temperature baking smoking device, comprising:

[0007] A housing, inside which a heating cavity for inserting a cigarette stick is slidably arranged;

[0008] A heating element for heating the cigarette stick inserted in the heating cavity;

[0009] A cleaning plug arranged at the bottom of the heating cavity, such that the residues generated after heating the cigarette stick are deposited thereon;

[0010] A push rod fixedly installed in the housing and facing the cleaning plug;

[0011] A trigger member fixedly connected to the heating cavity;

[0012] When the triggering member is pressed, the cleaning plug moves along with the heating chamber toward the ejector rod to be released from the shell; when the triggering member is released, the heating chamber is reset under the action of the reset member.

[0013] Furthermore, the heating element is a heating tube slidably disposed in the shell, and the inner cavity of the heating tube constitutes the heating cavity.

[0014] Furthermore, a heating element bracket is fixedly provided at the bottom end of the heating tube, and the cleaning plug is matched and installed in the installation through hole on the heating element bracket to seal the bottom end of the heating tube.

[0015] Furthermore, after the cleaning plug is detached from the mounting through hole, it is in a free state in the heating tube and can slide freely out of the cigarette socket of the smoking device.

[0016] Furthermore, the cleaning plug has a T-shaped cross section, and the vertical section of the cleaning plug is interference-connected with the mounting through hole via a sealing ring, and the sealing ring can be removed from the mounting through hole together with the cleaning plug.

[0017] Furthermore, a heat insulating member linked to the heating tube is provided between the heating tube and the shell, a first air duct is provided between the heating tube and the heat insulating member, an air inlet is provided on the shell, and a second air duct is provided between the heating body bracket and the heating tube. The airflow enters the heating tube through the air inlet, the first air duct and the second air duct in sequence and flows out from the top of the cigarette.

[0018] Furthermore, the trigger member is a guide sleeve that is matched and slidably installed in the top through hole of the shell. The bottom end of the guide sleeve is connected to the heating tube and a positioning shoulder is provided on the outer peripheral wall. The inner cavity of the guide sleeve becomes the cigarette socket of the smoking device. The guide sleeve is positioned by abutting against the inner wall of the shell through the positioning shoulder under the action of the restoring force provided by the elastic reset member.

[0019] Furthermore, the push rod is fixedly installed in the shell through a bracket, and the elastic reset member is a reset spring arranged between the bracket and the heating element bracket and sleeved on the push rod.

[0020] Furthermore, the thermal insulation component is a sleeve that is clamped and fixed between the heating element bracket and the guide sleeve, a thermal insulation cavity is formed in the side wall of the sleeve, and an aerogel layer is formed on at least one side wall of the thermal insulation cavity.

[0021] Furthermore, an energy source and a control board are also provided in the shell. The energy source, the control board and the heating element are electrically connected to form a control circuit. The shell is provided with control buttons and a charging interface connected to the control board.

[0022] Furthermore, an annular guide ring is provided on the inner side wall of the shell, and the sleeve is slidably arranged in the annular guide ring.

[0023] Further, the housing includes a left half-shell and a right half-shell that are fastened and fixed to each other. When the left half-shell and the right half-shell are fastened, the energy source and the control board are installed and fixed inside the housing.

[0024] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0025] 1. When the smoking device of the present invention is cleaned, the heating cavity of the smoking device is routinely cleaned by a brush. The difficult-to-clean substances generated during the long-term use of the smoking device will remain on the cleaning plug that contacts the end of the cigarette. By pressing the trigger member, the ejector rod moves relative to the heating cavity to eject the cleaning plug from the smoking device, thereby achieving a thorough cleaning of the heating cavity, avoiding the accumulation of residues such as tobacco oil during long-term use, and without the need for major improvements to the existing smoking device.

[0026] 2. The cleaning plug of the present invention is ejected by a pure mechanical manual ejection mechanism, which has the advantages of simple structure, high application strength, durability, and good touch. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 is a schematic diagram of the whole of the present invention;

[0028] Figure 2 is a structural schematic diagram of the present invention;

[0029] Figure 3 is an exploded view of the present invention;

[0030] Figure 4 is a schematic diagram of the ejection mechanism of the present invention;

[0031] Figure 5 is an exploded view of the ejection mechanism of the present invention;

[0032] Figure 6 is a partially enlarged schematic diagram before the cleaning plug of the present invention is ejected;

[0033] Figure 7 is a partially enlarged schematic diagram after the cleaning plug of the present invention is ejected;

[0034] Figure 8 is a schematic diagram of the cleaning plug of the present invention clamped on the heating element bracket. DETAILED DESCRIPTION OF THE INVENTION

[0035] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0036] See Figures 1-3, a low-temperature baking smoking device, comprising a housing 1. Inside the housing 1, a heating chamber and a heating element 2 are provided. The heating element 2 is used to heat the cigarette in the heating chamber. The heating chamber can slide relative to the housing 1. At the top of the housing 1, there is a cigarette insertion port 3 (jack) for inserting the cigarette. The cigarette insertion port 3 is preferably designed to be coaxial with the heating chamber and match the cigarette. In this way, when the cigarette is inserted into the cigarette insertion port 3, there is a certain resistance force, which can prevent the cigarette from being ejected from the smoking device. Inside the housing 1, there is also an energy source 4, such as a battery, electrically connected to the heating element 2 to supply power to the heating element 2 when needed. The battery can be a lithium-ion battery, a nickel-metal hydride battery or other batteries, preferably a rechargeable battery. In the housing 1, there is also a control board 5. The control board 5, the battery and the heating element 2 are electrically connected to form a control circuit. As for the specific composition of the control circuit, it is all prior art and will not be elaborated here. On the side wall of the housing 1, there are a control button 6 and a charging interface 7 connected to the PCB button board 26 on the control board 5. The battery can be charged through the charging interface 7. By pressing the control button 6, the power supply or power-off of the heating element 2 can be realized through the control circuit.

[0037] The cigarette here not only refers to the traditional heat-not-burn cigarette, but also should include any other products containing smoking materials that can be inserted into the heating chamber for heating and volatilization. For example, in this embodiment, the cigarette is composed of a tobacco section containing tobacco materials and a filter section. When the smoker needs to smoke, the cigarette is inserted into the heating chamber from the cigarette insertion port 3, and at least part of the filter section of the cigarette protrudes from the cigarette insertion port 3 to the outside of the smoking device. Press the control button 6, and the control circuit controls the battery to supply power to the heating element 2, so that the heating element 2 generates heat to heat the smoking materials to produce the smoke for the smoker to inhale. After passing through the filter section, the smoke enters the smoker's mouth. After the cigarette is used up, the control circuit stops supplying power to the heating element 2. The smoker can hold the exposed section of the cigarette and pull out the cigarette from the heating chamber. The cigarette can be produced by the existing cigarette production line for low-temperature non-burning cigarettes without modifying the existing production line. When in use, at least part of the filter section of the cigarette protrudes from the housing 1. When the smoker smokes, he can directly hold the filter in his mouth to smoke without separately setting a suction component in the smoking device. The cost of the smoking device is reduced, and after the cigarette is smoked, the filter is replaced together with the cigarette. Different smokers can use the same smoking device to smoke, and the smoking device has strong adaptability.

[0038] In this embodiment, surround heating is adopted. The heating element 2 is a heating tube, which can slide relative to the housing 1 along its axial direction. The inner cavity of the heating tube forms a heating chamber for inserting a cigarette. The heating tube can be various heating tubes with an electric heating function in the prior art. For example, in this embodiment, the heating tube is composed of a metal heat-conducting tube and a thick-film resistor paste layer printed on the outer peripheral wall of the metal heat-conducting tube. The thick-film resistor paste layer is provided with positive and negative electrodes electrically connected to the control board. An insulating layer is provided between the metal heat-conducting tube and the thick-film resistor paste layer. After being energized, the heat generated by the thick-film resistor paste layer is transferred into the cavity of the metal heat-conducting tube through the metal heat-conducting tube to heat the smoking material.

[0039] See Figure 2 , Figure 3 and Figure 8 , in this embodiment, a cleaning plug 9 is provided at the bottom end of the heating tube (the end of the heating tube opposite to the cigarette socket) for depositing residues such as tobacco oil generated after the cigarette is heated. Specifically, in this embodiment, a heating element bracket 8 is fixedly installed at the bottom end of the heating tube. An installation through-hole 10 coaxial with the heating tube is provided on the heating element bracket 8. The cleaning plug 9 is fitted and installed in the installation through-hole 10 to block the bottom end of the heating tube. After the cigarette is inserted into the heating tube from the cigarette socket 3, residues such as tar generated by heating the cigarette will be deposited on the cleaning plug 9 under the action of gravity. A bracket 11 is also fixedly installed in the housing 1. The control board 5 is fixed in the housing 1 through the bracket 11. A push rod 12 is fixedly installed on the bracket 11. The push rod 12 is arranged at the end of the heating element bracket 8 away from the heating tube and is opposite to the installation through-hole 10. A trigger member 13 fixedly connected to the heating tube is installed on the housing 1. When the heating tube needs to be cleaned, the smoker presses the trigger member 13 to drive the heating tube to move in the housing 1, so that the push rod 12 makes a relative movement towards the installation through-hole 10 to push the cleaning plug 9 out of the installation through-hole 10 and then out of the housing 1; after releasing the trigger member, the heating tube is reset under the action of the reset member 14. The reset member can be any reset member with a reset function in the prior art, such as an elastic reset member. Preferably, the elastic reset member 14 is a reset spring with one end fixedly connected to the bracket 11 and the other end fixedly connected to the heating element bracket 8. The reset spring is sleeved on the push rod. It can be imagined that the elastic reset member can also be a structure with an elastic reset function made of rubber or other materials.

[0040] See Figure 6 and Figure 7When the smoking device needs to be cleaned, the side wall of the heating tube is routinely cleaned with a brush. The difficult-to-clean substances generated during the long-term use of the smoking device will only remain on the cleaning plug 9 in contact with the end of the cigarette. The cleaning plug 9 is removed from the smoking device by the ejector rod 12, and the cleaning plug 9 is cleaned or replaced, so as to achieve a thorough cleaning of the heating tube, avoid the accumulation of residues such as tobacco oil during long-term use, and there is no need to make major improvements to the existing smoking device. It can be imagined that a concave deposition chamber can be provided on the end face of the cleaning plug 9 facing the cigarette, and residues such as tobacco shreds and tar dropped from the cigarette are deposited in this deposition chamber, so as to prevent these residues from falling into or flowing to other parts of the smoking device. In this embodiment, the cleaning plug 9 and the heating element bracket 8 are made of high-temperature resistant materials to withstand the heat generated by the heating tube and will not produce harmful volatile substances, such as high-temperature resistant silica gel.

[0041] See Figure 2 and Figure 3 In another embodiment, the size of the cleaning plug 9 is slightly smaller than the apertures of the heating tube and the cigarette socket 3, so that the cleaning plug 9 is in a free state in the heating tube 2 after being detached from the mounting through hole 10 and can freely slide out from the cigarette socket 3 of the smoking device. This structural design enables the sliding distance of the heating tube to be designed very small (only need to be greater than the length of the interference fit section between the cleaning plug 9 and the mounting through hole 10), making the entire structure of the smoking device very compact. The cleaning plug 9 can be made into various shapes, such as a T-shaped cross-section. During installation, only the cleaning plug 9 needs to be inserted into the heating tube from the cigarette socket 3 and the vertical section of the cleaning plug is interference-fitted in the mounting through hole 10 to achieve fixation, and the installation and replacement are very convenient. It can be imagined that electromagnetic adsorption or snap-fastening can also be used to fix the cleaning plug in the mounting through hole 10. In addition, to prevent smoke from passing through the gap between the cleaning plug 9 and the mounting through hole 10, the vertical section of the cleaning plug 9 is hermetically and interference-connected with the mounting through hole 10 through a sealing ring 19, and the sealing ring 19 can be detached from the mounting through hole 10 together with the cleaning plug 9.

[0042] See Figure 2 and Figure 3In another embodiment, an upper cover fixing member 15 is fixedly installed on the top of the housing, and a top through hole is provided on the upper cover fixing member 15. The trigger member 13 is a guide sleeve that is slidably installed in the top through hole. An annular silicone sleeve 17 is fixedly installed on the bottom end of the guide sleeve. The top end of the heating tube is inserted and fixed in the inner cavity of the annular silicone sleeve 17. A positioning shoulder 18 is provided on the outer peripheral wall of the guide sleeve. The inner cavity of the guide sleeve becomes a cigarette plug 3. The cigarette passes through the guide sleeve and the annular silicone sleeve 17 in sequence and enters the heating tube. When the heating tube is in the reset state, the guide sleeve abuts against the inner wall of the housing 1 through the positioning shoulder 18 under the action of the restoring force provided by the reset spring to achieve axial positioning. The heating tube is suspended and fixed in the housing 1 through the restoring force provided by the elastic reset member. The restoring force of the elastic reset member should be sufficient. When the cigarette is inserted into the heating tube and inhaled, the heating tube will not move or move very little relative to the housing, thereby preventing the cleaning plug 9 from being ejected from the mounting through hole 10. In this embodiment, the guide sleeve is made of a high temperature resistant material to withstand the heat generated by the heating tube and not produce harmful volatile substances, such as high temperature resistant silicone.

[0043] See also Figures 3-5 In another embodiment, a heat insulating member that is linked to the heat pipe (moves with the heat pipe) is provided between the heat pipe and the shell 1. Specifically in this embodiment, the heat insulating member is a sleeve that is fixed between the heat body bracket 8 and the guide sleeve 16, and the bottom end of the sleeve is sealed and connected to the heat body bracket 8 through the silicone seal 16. A heat insulating cavity 20 is formed in the side wall of the sleeve, and an aerogel layer (not shown in the figure) is formed on at least one side wall of the heat insulating cavity 20. The heat generated by the heat pipe diffuses to the shell 1 through the sleeve. When passing through the aerogel layer, the aerogel has excellent heat insulation and heat preservation properties, which can effectively prevent the heat from diffusing to the shell 1, and prevent the shell temperature from being too high and hot. A gap is left between the heat pipe and the sleeve to form a first airway 21, and an air inlet hole (not shown in the figure) is provided on the shell 1. A second airway is provided between the heat body bracket 8 and the heat pipe (not shown in the figure, and air intake can be adopted by using the matching gap). The airflow enters the heat pipe through the air inlet hole, the first airway 21, and the second airway in turn and flows out from the top of the cigarette. Specifically, the sleeve is composed of an outer tube 22, an inner tube 23 inserted into the outer tube 22, and a plug 24 disposed between the ends of the outer tube 22 and the inner tube 23. Press the guide sleeve with your fingers, and under the force of the pressure, the guide sleeve slides axially along the top through hole, and the parts above the reset spring (guide sleeve, annular silicone sleeve 17, sleeve, heating tube, heating element bracket) move downward, and the reset spring is fixed on the bracket, and the bracket is in a fixed state (stationary). When the sleeve is pressed downward, the top rod on the stationary bracket will support the cleaning plug, so that the cleaning plug is separated from the heating element bracket. At this time, the cleaning plug can be taken out (or tilted / turned upside down) to clean it. After loosening the guide sleeve, the parts above the reset spring (guide sleeve, annular silicone sleeve 17, sleeve, heating tube, heating element bracket) move upward until the guide sleeve abuts against the shell and is positioned.

[0044] See Figure 2 and Figure 3 In another embodiment, an annular guide ring 25 is provided on the inner side wall of the housing 1, and the sleeve is slidably arranged in the annular guide ring 25. The axis of the annular guide ring 25 coincides with the axis of the through hole at the top of the housing. The heating tube is guided by the annular guide ring 25 and the through hole at the top of the housing to prevent the heating tube from shifting during movement. The housing 1 includes a left half-shell 1-1 and a right half-shell 1-2 that are fixedly fastened to each other by buckles. After the left half-shell 1-1 and the right half-shell 1-2 are buckled, the upper cover fixing member 15, the energy source 4, and the bracket 11 are clamped and fixed in the housing 1. The upper cover fixing member 15, the energy source 4, the bracket 11, etc. are installed in the housing 1 by clamping, which is very convenient for replacement and installation.

[0045] The above embodiments are merely examples clearly illustrating the present invention and are not limitations on the implementation manners. For those of ordinary skill in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the embodiments here. The obvious changes or modifications derived therefrom are still within the protection scope of the present invention.

Claims

1. A low-temperature baking smoking device, characterized in that, Comprising: A housing, with a heating cavity for inserting a cigarette stick slidably arranged inside; A heating element for heating the cigarette stick inserted in the heating cavity; A cleaning plug arranged at the bottom of the heating cavity, such that residues generated after heating the cigarette stick are deposited thereon; A push rod fixedly installed in the housing and facing the cleaning plug; A trigger member fixedly connected to the heating cavity; Such that when the trigger member is pressed, the cleaning plug moves towards the push rod direction along with the heating cavity to take out the cleaning plug from the housing; when the trigger member is released, the heating cavity resets under the action of a reset member; The heating element is a heating tube slidably arranged in the housing, and the inner cavity of the heating tube constitutes the heating cavity. The heating tube uses surrounding heating to heat the cigarette stick inserted in the heating cavity to generate smoke for the user to inhale; A heating element bracket is fixedly provided at the bottom end of the heating tube, and the cleaning plug is fitted and installed in the installation through hole on the heating element bracket to block the bottom end of the heating tube; After the cleaning plug disengages from the installation through hole, it is in a free state inside the heating tube and can freely slide out from the cigarette stick insertion port of the smoking device; An insulating member linked to the heating tube is provided between the heating tube and the housing. A first air passage is provided between the heating tube and the insulating member. An air inlet hole is provided on the housing. A second air passage is provided between the heating element bracket and the heating tube. Airflow sequentially enters the heating tube through the air inlet hole, the first air passage, and the second air passage and flows out from the top of the cigarette stick; The trigger member is a guide sleeve slidably fitted and installed in the through hole at the top of the housing. The bottom end of the guide sleeve is docked with the heating tube, and a positioning shoulder is provided on the outer peripheral wall. The inner cavity of the guide sleeve becomes the cigarette stick insertion port of the smoking device. The guide sleeve is abutted and positioned against the inner wall of the housing through the positioning shoulder under the restoring force provided by an elastic reset member; The insulating member is a sleeve clamped and fixed between the heating element bracket and the guide sleeve. An annular guide ring is provided on the inner side wall of the housing. The sleeve is slidably fitted in the annular guide ring, and the axis of the annular guide ring coincides with the axis of the through hole at the top of the housing.

2. The low-temperature baking smoking device according to claim 1, wherein: The cross section of the cleaning plug is T-shaped. The vertical section of the cleaning plug is in interference connection with the installation through hole through a sealing ring, and the sealing ring can be taken out of the installation through hole together with the cleaning plug.

3. The low-temperature baking smoking appliance according to claim 1, wherein: The push rod is fixed in the housing through a bracket, and the elastic reset member is a reset spring arranged between the bracket and the heating element bracket and sleeved on the push rod.

4. The low-temperature baking smoking device according to claim 1, characterized in that: An insulating cavity is formed inside the side peripheral wall of the sleeve, and an aerogel layer is formed on at least one side wall of the insulating cavity.

5. The low-temperature baking smoking device according to claim 1, wherein: An energy source and a control board are further provided inside the housing. The energy source, the control board, and the heating element are electrically connected to form a control circuit. The housing is provided with a control button and a charging interface connected to the control board.

Images