Device containing tobacco mixture

Abstract

The invention relates to the technical field of tobacco smoking devices, in particular to a hookah device containing a pre-packaged tobacco mixture. More specifically, the invention discloses a hookah bowl. The hookah bowl can be used in cooperation with an external assembly, for example, the hookah bowl can be used in cooperation with a hookah set. The device containing the tobacco mixture comprises a tobacco bowl (15) which can form an inner space (14) for placing the tobacco mixture (16), the center of which is provided with a raised part (12), the upper surface of which is provided with a through-hole (13) made of a thermally conductive material with high mechanical strength, the cigarette bowl can be mounted on the cigarette tube through a sealing gasket (17), and the sealing gasket is made of a flexible heat-resistant food-grade material and is arranged inside the convex part (12); a cover (10) is further included, a plurality of protruding parts (8) are arranged on the upper surface of the cover, a plurality of through holes (9) are formed in the periphery of a cover body, and a pressing element (19) is arranged in the center of the cover body.

Description

Technical Field

[0001] The present invention relates to the technical field of tobacco smoking devices, and more particularly to a hookah device containing a prepackaged tobacco mixture. More specifically, the present invention discloses a hookah bowl. The hookah bowl can be used in cooperation with external components, for example, it can be used in cooperation with a hookah bag set. Technical Background

[0002] Hookah devices are used for smoking, and their special design allows steam and smoke to be filtered through water before being inhaled by the user. The hookah device includes a bowl for loading the tobacco mixture, and the bowl is covered with a metal mesh. The bowl is a cavity with air inlet and outlet holes, usually made of ceramic or silicone.

[0003] Generally, the tobacco mixture is loaded into the bowl by finger or a special pair of pliers. To grasp the correct proportion, density of various components of the mixture and the filling degree of the bowl, the user needs to have rich operation experience and skills of the hookah device.

[0004] After preparing the tobacco mixture, cover the bowl with tin foil or a lid, and place burning charcoal on it. After smoking, the bowl needs to be carefully cleaned. Due to frequent use, the bowl will inevitably have wear and stubborn organic dirt. The above-mentioned preparation method of the hookah device bowl in the traditional technology is inefficient, cumbersome in operation, and requires direct contact with the mixture that is easy to dirty hands when handling and placing the tobacco mixture.

[0005] In the prior art, a smoking device for a hookah device is known, which aims to solve the problems of simplicity and convenience of using the tobacco mixture and ensure cleanliness during use, and includes a disposable hookah bowl structure.

[0006] For example, according to the patent RU 2787226C1 published on December 30, 2022, a device containing a tobacco mixture is known, which includes a bowl, a perforated grid provided on the bowl, a brush-shaped film with pins that can be hermetically connected to the grid, a lid that can be hermetically connected to the bowl, a ring surrounding the bowl, the ring can be lifted to a position above the bowl, wherein the bowl is provided with a perforated protrusion on the inner side of its central bottom, or a base with a vertical through hole is provided at the center of its outer bottom, and a plug can be hermetically arranged in the protrusion or base of the bowl.

[0007] The disadvantages of the above solutions are:

[0008] 1. The tobacco bowl is made of heat-resistant silicone. Since the heating of the aerosol-forming tobacco mixture depends on the convection of the air flow heater, the heating of the tobacco mixture is limited. As a result, due to uneven heating of the mixture, the production of volatile compounds is significantly reduced, especially when using a silicone mesh that separates the plate and the mixture.

[0009] 2. Since the plate on which the heating element is installed is flat and there is a lack of air flow, combustion cannot be maintained at the lower edge of the heater, which further deteriorates the heating of the mixture and reduces the formation of volatile compounds.

[0010] 3. A partition is provided inside the tobacco bowl, which hinders the "dumping" of the mixture and the free flow of air inside the tobacco bowl, thereby reducing the convective heating at the junction of the partition plane and the tobacco bowl wall. Therefore, the user needs to "remember" the installation position of the heater in order to be able to use the entire tobacco mixture evenly.

[0011] According to the patent RU 2574705C2 published on February 10, 2016, there is known a pre-packaged capsule containing a tobacco material, which includes: a container having an upper surface, a lower surface and a side wall, wherein the lower surface and the side wall form a closed inner cavity; a portion of tobacco material and a stirring device capable of freely moving inside the tobacco material; wherein the tobacco material and the freely movable stirring device are encapsulated in the inner cavity.

[0012] This device has the following disadvantages:

[0013] 1. It requires the use of an additional device, namely a system for fixing the capsule containing the aqua tobacco mixture. In addition, this system will "accumulate" the residues after using the capsule, and when using fillers of different flavors, professional cleaning and maintenance are required to maintain the purity of the taste.

[0014] 2. The capsule structure itself will cause pollution to the hookah pipe (especially the holes at the bottom of the capsule are permeable to molasses and fine tobacco particles, which makes it impossible to use any aerosol matrix containing liquid or gel components - these components will enter the tobacco pipe and then into the water bottle of the hookah bag, so higher requirements are put forward for the cleaning and maintenance of the device after using the capsule).

[0015] 3. The upper surface of the capsule is a flat structure, so combustion cannot be maintained at the lower edge of the heating element.

[0016] The patent US9445630B1 published on September 20, 2016 discloses a pre-packaged tobacco block suitable for a hookah with a tobacco inlet pipe.

[0017] This solution has the following disadvantages:

[0018] 1. In the main embodiment of the invention, the bottom of the tobacco bowl of the device is provided with holes. When the tobacco mixture for preparing shisha is placed therein, it will hinder the air circulation, and the holes located at the bottom of the device will be blocked. In addition, when using the device with holes at the bottom, a large amount of the mixture and its components will enter the smoke pipe and the water bottle of the shisha bag.

[0019] 2. The flat metal cover, which is a structural component, does not have a protrusion for supporting the inflow of air to the bottom of the heating element. Therefore, the heat flow rate to the tobacco mixture is significantly reduced.

[0020] 3. A large number of evenly distributed perforations are provided on the device lid, but the number of perforations concentrated in the center of the tobacco bowl is limited. Under the action of the pressure difference generated during the inhalation of steam, the air flow is concentrated around the vertical axis of the tobacco bowl, and the heating intensity of the tobacco mixture gradually decreases radially, and its consumption gradually decreases (this effect is caused by the physical principle of minimum resistance based on Bernoulli's law. According to this principle, any gaseous medium will move along the path of least resistance, which is the path of least resistance in this example). This drawback is inherent in the two embodiments disclosed in the present invention.

[0021] 4. In another embodiment, the device is not provided with a protection mechanism to prevent tobacco mixture particles from entering the air outlet of the conical channel due to bumps, impacts, and vibrations during transportation.

[0022] According to the patent US8347892B2 published on September 30, 2010, an embodiment of a disposable shisha bowl that can be directly installed on a shisha pipe is known in the prior art.

[0023] The disadvantages of this solution are:

[0024] 1. An opening is provided at the lower part of the tobacco mixture storage chamber. After being blocked, it will cause poor air flow, and this opening will also allow tobacco debris and molasses drops to enter the smoke pipe and the water bottle.

[0025] 2. The lid for loading charcoal is a flat surface and is provided with a closed limiting protrusion, which hinders the inflow of fresh air and reduces the heat conduction efficiency during the combustion process.

[0026] According to the US application US20060207621A1 published on September 21, 2006, a wick body that can be used in conjunction with a shisha or other smoking device having a tobacco bowl for holding tobacco is known. The wick body includes: a certain amount of tobacco encapsulated in a shell, where the shell has a lower end for inserting the wick body into the tobacco bowl of the smoking device, and an upper end that can be opened to facilitate access to and ignition of the tobacco.

[0027] The disadvantages of this device are:

[0028] 1. An additional device is required, namely a hookah bowl with a holding partition of appropriate size, so professional cleaning is needed, and frequent use will inevitably damage the bowl.

[0029] 2. In this embodiment, the tobacco tray is in close contact with the upper part of the capsule, and a combustible material tray is installed on the capsule, which will cause the upper layer of the tobacco tray to burn and form carcinogenic substances.

[0030] 3. Since there are holes in the lower part of the compartment for placing the tobacco tray, after the filter element adsorbs the liquid fraction (molasses, aromatic liquid), it will become a "plug", hindering the free flow of air.

[0031] A hookah consumable used in combination with a hookah set is known in the prior art and is protected by the patent RU 2725462C2 published on July 2, 2020. The consumable includes: a housing that forms a first compartment and a second compartment, the second compartment being adjacent to the first compartment and separated from it in a sealed or airtight manner; a combustible heat source encapsulated in the first compartment; and an aerosol-forming matrix encapsulated in the second compartment.

[0032] The invention has the following disadvantages:

[0033] 1. The product is equipped with a combustible heat source, and when the combustible heat source is used up, it stops being used, which greatly limits the use time and quality of the aerosol-air mixture.

[0034] 2. The product cannot be directly installed on the smoking pipe of the hookah, and a product container with a complex structure is also needed.

[0035] 3. In addition, a flat partition is provided between the two compartments of the product, seriously reducing the heat generation performance of the lower surface of the combustible heat source. Summary of the Invention

[0036] It can be seen from the known structures of smoking devices for hookah bag devices that many products are obviously trying to solve the problems of reducing the preparation time and keeping the smoking process clean. However, these products have structural defects, affecting the safety, convenience, smoking quality and ease of operation during the smoking process.

[0037] The proposed solution aims to overcome the disadvantages of the above similar methods, so as to maintain the quality of the tobacco mixture during storage and transportation, greatly simplify the preparation of hookah, while significantly improving the quality of the smoking process, and improve its safety by minimizing the direct combustion of the mixture, avoiding the safety hazards existing in the traditional hookah preparation methods and many of the above solutions.

[0038] Using a hookah bowl containing a pre-packaged tobacco mixture, in addition to the obvious advantages such as convenience of use and product standardization, and without the need for users to have special skills in mixing the mixture and preparing the bowl for use, its main purpose is to eliminate the common "memory" effect of taste in reusable bowls or similar tobacco mixture containers during their usage cycle. The aerosol-air mixture generated during the use of a hookah, due to its particularity and the presence of fine particulate matter, gases, and droplets of condensed vapor, these substances will deposit on the entire surface of the container during smoking. If the container is made of porous materials (such as ceramics, natural clay, etc.), they will penetrate deep into the container itself and can only be removed by means of industrial-grade cleaning and surface treatment.

[0039] Technical achievements of the proposed solution: The use efficiency and safety of the product are improved for the following reasons:

[0040] The entire surface of the tobacco mixture is evenly heated, improving the release of visible and invisible volatile compounds;

[0041] The reusable container will not accumulate and produce unpleasant odors due to long-term use;

[0042] Since it is difficult for the cavity of the reusable container to be accessed, no environment of bacterial or fungal contamination is formed inside the cavity, minimizing health risks;

[0043] By maintaining the optimal temperature conditions between 250 and 350 degrees Celsius, the volatile compounds in the tobacco mixture are released, thus improving the sensory characteristics of the aerosol;

[0044] Minimize the combustion or pyrolysis of the tobacco mixture;

[0045] Reduce the possibility of tobacco mixture particles contaminating the smoke tube and water bottle of the hookah device.

[0046] The technical effect of the proposed technical solution is achieved through the device structure containing the tobacco mixture. The device includes a hookah bowl, which can form an internal space for placing the tobacco mixture. A raised part is provided at the center of the hookah bowl. Through holes are provided on the upper surface of the raised part. The through holes are made of a thermally conductive material with high mechanical strength. The hookah bowl can be installed on the smoke tube through a sealing gasket. The sealing gasket is made of a flexible heat-resistant food-grade material and is provided inside the raised part; the device also includes a lid. Several raised parts are provided on the upper surface of the lid. A plurality of through holes are provided on the periphery of the lid body, and a pressing element is provided at the center.

[0047] According to an embodiment of the present invention, the hookah bowl in the device is preferably made cylindrical.

[0048] The thermally conductive material with high mechanical strength for manufacturing the tobacco bowl is selected from food-grade aluminum alloy and food-grade steel, and the thickness is from 0.3 mm to 1.5 mm.

[0049] The sealing gasket is a hollow tube made of silica gel. The tobacco bowl cover is rigidly connected to the tobacco bowl to form an airtight connection.

[0050] The width of the through hole on the periphery of the tobacco bowl cover is from 1.0 mm to 3.0 mm. The device may further include a cover for controlling the combustion temperature of the heating element, and a plurality of air holes and protrusions are provided on the cover. The cover is equipped with two handles for controlling the size of the air holes.

[0051] In an embodiment of the present invention, the device may further include an annular member, and a plurality of grooves are provided on the annular member. The temperature control cover is installed on the grooves. The annular member is further provided with a plurality of protrusions, and the inner side of the protrusions has notches and protrusions. The protrusions are fixed on the outer edge of the tobacco bowl, and the protrusions limit the fit between the annular member and the tobacco bowl, so that a circular fire hole is formed along the entire radius of the annular member between the upper edge and the lower edge of the cover.

[0052] The device may further include a partition membrane, and the partition membrane is installed and fixed between the upper surface of the central convex member of the tobacco bowl and the top end of the pressing element through a pressing element, and remains stationary. There is a certain distance between the partition membrane and the lower plane of the cover.

[0053] The device containing the tobacco mixture is a disposable item. Description of the Drawings

[0054] Figure 1 is the general view of the device containing the tobacco mixture.

[0055] Figure 2a and 2b is an embodiment of the sealing gasket.

[0056] Figure 3a 、 3b and 3c are the general views of the connection structures between the cover and the tobacco bowl of different embodiments of the device of the present invention.

[0057] Figure 4 is the sectional view of the cover with a pressing element.

[0058] Figure 5 shows the research and comparison results of the change in the thermal conductivity coefficient within a specified distance from the center to the edge of the device in two cases of using a smooth cover without protrusions and a cover with protrusions. Detailed Description of the Invention

[0059] The device containing the tobacco mixture (see Figure 1)It consists of a tobacco bowl (15) with a lid (10). The tobacco bowl is preferably cylindrical, having a formed internal space (14), with a raised member (12) at the center. The upper surface of the raised member (12) is provided with a through hole (13). The tobacco bowl contains a tobacco mixture (16), which is an aerosol-air mixture, preferably 10 to 15 grams. The tobacco mixture is placed in the internal space (14) of the tobacco bowl (15), and its position is lower than the horizontal plane where the through hole (13) is located, thus significantly reducing the possibility of the mixture particles contaminating the flue of the hookah device and the water bottle.

[0060] The above-mentioned mixture refers to a substrate that releases volatile compounds capable of forming an aerosol when heated. According to the present invention, these substrates produce visible or invisible aerosols during the use of the product. The aerosol includes vapor (for example, a fine particle in a gaseous state, which is usually liquid or solid at normal temperature), and also includes droplets formed by the condensation of gas and vapor. Preferably, the aerosol-forming substrate includes nicotine or a nicotine source usually from tobacco materials. Preferably, the aerosol-forming substrate is solid and made of tobacco materials. Any suitable aerosol-forming substrate can be used with the hookah bowl. The aerosol-forming substrate can be solid, liquid or gel-like, or at least contain one of these states. The aerosol-forming substrate can contain or consist of non-tobacco materials. The non-tobacco materials can include vanilla leaves, spices or other ingredients used with the hookah pouch.

[0061] The tobacco bowl (15) is made of a highly thermally conductive material with high mechanical strength (such as food-grade aluminum alloy, food-grade stainless steel, with a thickness of 0.3 mm to 1.5 mm).

[0062] Table 1 lists the research data on the relationship between the heating quality and uniformity of the tobacco mixture and the thickness of the material used to manufacture the device. The material used in the experimental device is aluminum alloy. For professionals, the brand of the aluminum alloy is not important because any brand of the material has the necessary properties and characteristics and can meet the requirements for the material used in the applied device. Coconut charcoal is used as the heating element, and its lowest combustion temperature is 500 degrees Celsius. Each experimental device contains a tobacco mixture with 13 grams of tobacco. It can be seen from the result table that when using a device with a thickness of 0.3 mm to 1.5 mm, the heating quality of the mixture for releasing volatiles is the highest.

[0063] Table 1

[0064]

[0065] It can be seen from Table 1 that when using a device with a thickness of 0.3 mm to 1.5 mm, the heating quality of the mixture for releasing volatiles is the highest.

[0066] Table 2 lists the data of similar studies, where the material used for the experimental device is food-grade stainless steel. For professionals, the brand of the steel is not important because any brand of material has the necessary properties and characteristics and can meet the requirements for the material used in the device being applied for. The device made of food-grade stainless steel shows the ability to quickly reach the optimal temperature conditions while maintaining a highly uniform heat distribution. However, after use, the cooling interval of the device is significantly longer.

[0067] Table 2

[0068]

[0069] As can be seen from Table 2, when using devices with a thickness of 0.3 mm to 1.5 mm, the heating quality of the mixture for releasing volatiles is the highest.

[0070] Due to the sealing gasket (17) made of heat-resistant food-grade silicone, the tobacco bowl can be directly installed on the tobacco pipe of the Egyptian hookah. For professionals, the brand of the silicone is obviously not important because any brand of silicone has the necessary properties and characteristics and can meet the requirements for the material used in the structural element installed inside the raised part (12) being applied for.

[0071] Table 3 lists the research results of different materials used in the manufacture of the sealing gasket (17), as well as the results of using the device with the tobacco mixture without using the sealing gasket.

[0072] Table 3

[0073]

[0074] The material test data shows that the sealing gasket made of food-grade silicone has the best advantages in terms of reliability, safety, integrity of aerosol formation, and no odor.

[0075] The function of the sealing gasket (17) is to provide a reliable and airtight fit for the hookah pipe without using any additional adapter rings. In a preferred embodiment of the present invention, the graphic position of the sealing gasket is (17), as Figure 1 shown. The structure of the sealing spacer (17) can be different from the preferred embodiment. For example, it can adopt a simple design, that is, a hollow tube, as Figure 2a shown, or it can adopt a more complex design, as Figure 2b shown.

[0076] See Figure 1 , the remarkable feature of the lid (10) is that its upper surface is provided with a number of raised parts (8), and these raised parts increase the total surface area of the combustion front, thereby increasing the heat transfer coefficient of the heating element (18) used during smoking.Figure 5 Shows the research and comparison results of the change in the heat conduction coefficient within a specified distance from the center to the edge of the device in two cases: using a smooth lid without protrusions and using a lid with protrusions.

[0077] The protrusion (8) in the accompanying drawings is for illustration only and is not limited to any specific embodiment. The protrusion (8) can have any shape as long as it ensures sufficient air circulation at the bottom of the heating element (18). Figure 3a 、 3b Figures 3a, 3b, and 3c respectively show examples of the structural forms of the protrusion (8).

[0078] In addition, the lid (10) is also provided with a plurality of through holes (9), the width b (see Figure 4 ) being from 1.0 mm to 3.0 mm. These through holes can allow a certain amount of air to flow into the cavity of the tobacco bowl (15) and heat the entire tobacco mixture (16) on the way to the through hole (13).

[0079] Table 4 lists the research data on the relationship between the width of the through holes on the periphery of the device lid and the quality and uniformity of the convective heating of the tobacco mixture.

[0080] Table 4

[0081]

[0082] As can be seen from Table 4, when the hole width is from 1.0 mm to 3.0 mm, the heating quality of the tobacco mixture is the highest and there is no overheating.

[0083] In addition, the lid (10) also includes a pressing element (19) (see Figure 4 ). The separation membrane (11) is installed and fixed between the upper surface of the central protrusion (12) of the tobacco bowl (15) and the top of the pressing element (19) through the pressing element (19), remaining stationary. Among them, the entire separation membrane (11) has a certain distance from the lower plane of the lid (10). According to the present invention, the separation membrane (11) is an additional structural element of the device and not an essential structural element.

[0084] The lid (10) of the tobacco bowl (15) can be rigidly connected to the tobacco bowl (15) by any known method providing an airtight connection, that is, connected to its outer edge. Figure 3a 、 3b Figures 3a, 3b, and 3c respectively show three ways of connecting the tobacco bowl (15) and the lid (10) applied in the food industry, namely the crimping method (see Figure 3a and 3c ). In the first way ( Figure 3a ), the edge of the lid is crimped on the wall of the tobacco bowl; in the second way ( Figure 3c) in which the lid remains horizontal while the bowl wall itself bends directly; and Figure 3b The "double - card" type of seam connection shown. Thus, in these embodiments, the claimed devices are all disposable devices.

[0085] The claimed device may further include:

[0086] A lid (1) for controlling the combustion temperature of the heating element, the lid including two handles (2) for controlling the size of the air holes (3), and a protrusion (4) for securely fixing it to the ring (5);

[0087] A ring (5) provided with a groove (6), on which the temperature - control lid (1) is installed. The ring (5) is further provided with a number of protrusions (7). The inner side of the protrusions has a notch (21) and a protrusion (20). Among them, the protrusions (7) are fixed on the outer edge of the bowl. The inner protrusion (20) limits the fit between the ring and the bowl, such that a circular fire hole is formed along the entire radius of the ring between the upper edge and the lower edge of the lid. The function of the ring (5) is to ensure the safety during the use of the heating element (18) and improve the convective performance of the air flow passing through the heating element (18) enclosed in a limited space;

[0088] A separation membrane (11). According to the requirements of the tobacco mixture (16), the membrane (11) can be made into a perforated plate or a mesh disk; in addition, according to the requirements of the mixture (16), the material of the membrane can be a heat - conductive material (such as aluminum, steel) or a heat - resistant material (such as fluoroplastics, silica gel). The function of the separation membrane (11) is to ensure minimizing the possibility of directly "burning" the mixture and improving the stability of the mixture during transportation. Another advantage of using the membrane (11) is that it can protect the through - holes (13), thereby preventing tobacco mixture particles from entering the smoke pipe and the water bottle of the hookah device due to shaking, impact, and vibration during transportation.

[0089] Table 5 lists the research results for determining the optimal membrane - manufacturing materials according to the type of tobacco mixture used in the device.

[0090] Table 5

[0091]

[0092]

[0093] In the embodiments of the present invention, the bowl (15) can have

[0094] A groove along the inner edge for "placing" a lid with an unbent edge;

[0095] A flat edge, on which a lid with a bent edge is covered.

[0096] The device containing the tobacco mixture can be packaged in a sealed bag, and the user can take it out without contaminating the product, and then install the device on the tobacco pipe of the hookah device.

[0097] The following is an embodiment of the present invention containing all the above elements.

[0098] When smoking, the user takes out the tobacco bowl (15) from the package. The tobacco bowl contains a tobacco mixture (16) containing tobacco components. A stainless-steel woven separator membrane (11) is installed in the tobacco bowl, and the separator membrane (11) is fixed at a certain distance from the inner surface of the lid (10) by a pressing element (19). The user can directly install the tobacco bowl (15) onto the metal tobacco pipe of the Egyptian hookah bag with a slight force. A raised part (12) pre-installed in the center of the tobacco bowl (15) during the production process or a sealing gasket (17) as part of the tobacco bowl (15) kit (depending on the specific implementation of the gasket) can ensure a safe, stable and airtight connection between the hookah tobacco pipe and the internal space (14) of the tobacco bowl (15). In another specific example, the complex-structured sealing gasket (17) ( Figure 2b ) is provided separately from the tobacco bowl (15), and can be independently installed on the hookah tobacco pipe with a little force, and then the tobacco bowl (15) can be easily assembled thereon. Subsequently, the user installs the ring (5), engages the protruding part (7) with the outer wall of the tobacco bowl (15), and due to the presence of the inner protrusion (20), a combustion hole is formed to ensure a continuous flow of fresh air to the lower plane of the heating element (18). The pre-“ignited” heating element (18) is placed into the inner cavity formed by the ring (5) and the upper surface of the lid (10), and then covered from above by the lid (10). The hole (3) on the lid can be adjusted according to the user's preference. After the preparation is completed, the user starts smoking. During the smoking process, the heated air enters through the through hole (9), mixes with the fractions formed after the tobacco mixture (16) is heated in the entire internal space (14), sinks through the through hole (13) into the internal space of the hookah tobacco pipe, and is inhaled by the user through the hose after being filtered by the water bottle. At the end of smoking, the residue of the heating element is “taken out” from the inner cavity of the ring (5) with a hookah clamp, then the user removes the ring (5) itself with the clamp, and removes the tobacco bowl (15) from the tobacco pipe with the clamp. The user can keep the cooled ring (5), and the cooled tobacco bowl (15) can be discarded or recycled.

[0099] The singular forms used in this specification also include plural meanings, unless the context clearly dictates otherwise. The conjunction “or” used in this specification generally means “and / or”, unless the content conflicts with this. The term “and / or” means one or all of the listed elements, or a combination of two or more elements.

[0100] The terms "have", "possess", "include", "comprise" and similar terms used in this specification should be construed broadly and should not be regarded as restrictive terms. It should be noted that phrases such as "consisting essentially of" and "consisting of" also fall within the category of "include" type terms.

[0101] Words such as "preferred" and "preferably" mean that embodiments of the present invention may have certain advantages under specific conditions. However, in the same or other circumstances, other embodiments may also be preferred.

[0102] In addition, the disclosure of one or more preferred embodiments does not mean that other embodiments are useless, nor does it mean that they are excluded from the scope of protection of the present invention including the claims.

[0103] Schematic diagram materials are not necessarily drawn to scale and are for illustration only and not for limitation. The diagram materials depict one or more implementation aspects described in this specification. However, it should be understood that other aspects not described in the diagram materials also fall within the scope and essence of the present invention.

[0104] List of reference numerals used

[0105] 1 - Lid for controlling the combustion temperature of the heating element

[0106] 2 - Handle

[0107] 3 - Air hole

[0108] 4 - Protrusion

[0109] 5 - Annular member

[0110] 6 - Groove

[0111] 7 - Protruding portion

[0112] 8 - Raised portion

[0113] 9 - Through hole

[0114] 10 - Lid

[0115] 11 - Separation membrane

[0116] 12 - Raised component

[0117] 13 - Through - hole

[0118] 14 - Inner space of the tobacco bowl

[0119] 15 - Tobacco bowl

[0120] 16 - Tobacco mixture

[0121] 17 - Sealing washer

[0122] 18 - Heating element

[0123] 19 - Pressing element

[0124] 20 - Protrusion

[0125] 21 - Notch

Claims

1. A device containing a tobacco mixture, comprising a tobacco bowl and a lid, characterized in that, the tobacco bowl (15) can form an internal space (14) for placing the tobacco mixture (16), and a raised member (12) is provided at the center thereof. A through hole (13) is provided on the upper surface of the raised member. The through hole is made of a thermally conductive material with high mechanical strength. The tobacco bowl can be installed on a tobacco pipe through a sealing gasket (17). The sealing gasket is made of a flexible heat-resistant food-grade material and is provided inside the raised member (12); and on the upper surface of the lid (10), several raised portions (8) are provided. A plurality of through holes (9) are provided on the periphery of the lid body, and a pressing element (19) is provided at the center.

2. The device according to claim 1, characterized in that, The tobacco bowl is preferably made cylindrical.

3. The device according to claim 1, wherein The thermally conductive material with high mechanical strength for manufacturing the tobacco bowl is selected from food-grade aluminum alloy and food-grade steel, and the thickness is 0.3 mm to 1.5 mm.

4. The device according to claim 1, characterized in that, The sealing gasket is a hollow tube and is made of silica gel.

5. The device according to claim 1, wherein The tobacco bowl lid is rigidly connected to the tobacco bowl to form an airtight connection.

6. The device according to claim 1, characterized in that, The width of the through holes on the periphery of the tobacco bowl lid is 1.0 mm to 3.0 mm.

7. The device according to claim 1, characterized in that, The device may further include a lid (1) for controlling the combustion temperature of the heating element. A plurality of air holes (3) and protrusions (4) are provided on the lid. The lid is equipped with two handles (2) for controlling the size of the air holes (3).

8. The device according to claim 7, characterized in that, The device may further include an annular member (5). A plurality of grooves (6) are provided on the annular member. The temperature control lid (1) is installed on the grooves. The annular member is further provided with a plurality of protrusions (7). The inner side of the protrusions has a notch (21) and a protrusion (20). The protrusions (7) are fixed on the outer edge of the tobacco bowl (15). The protrusion (20) limits the fit between the annular member (5) and the tobacco bowl (15), so that a circular fire hole is formed along the entire radius of the annular member (5) between the upper edge and the lower edge of the lid.

9. The device according to claims 7-8, characterized in that, The device may further include a partition membrane (11). The partition membrane is installed and fixed between the upper surface of the raised member (12) at the center of the tobacco bowl and the top of the pressing element (19) through the pressing element (19), and remains stationary. The partition membrane is at a certain distance from the lower plane of the lid (10).

10. The device according to claim 1, characterized in that The device is a disposable item.

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