A smoker

Abstract

This utility model relates to a smoke generator. The lower surface of the main body has a recessed receiving groove, the groove wall forming an isolation structure; or it has a protrusion forming a ring-shaped isolation structure. Both structures can shield the inner ignition electrode plate, completely eliminating the risk of accidental burns. The base has a combustion chamber that precisely aligns with the electrode plate for reliable ignition. The receiving groove and the base protrusion are positioned by magnetic attraction. A detachable filter assembly is fitted around the combustion chamber, simultaneously optimizing assembly precision and smoke purification effect.

Description

Technical Field

[0001] This utility model relates to the technical field of food smoking devices, specifically to a smoker. Background Technology

[0002] In existing smokers, the ignition electrodes are typically exposed on the bottom outer surface of the device. This arrangement presents a significant safety hazard: users are highly susceptible to burns when accidentally touching the high-temperature electrode surface during routine handling, moving the device, or cleaning and maintenance. This issue not only directly threatens user safety but also severely impacts the overall user experience. Utility Model Content

[0003] This invention provides a smoker to solve the problems mentioned in the background art.

[0004] To achieve the above-mentioned objectives, this utility model adopts the following technical solution:

[0005] A smoker includes a main body and a base, characterized in that the main body has a first lower surface, the first lower surface being recessed inward to form a receiving groove; an ignition electrode is disposed in the receiving groove, the height of the ignition electrode being lower than the height of the outer surface of the first lower surface, and the circumferential wall of the receiving groove is continuously arranged to surround the ignition electrode; the base includes a second upper surface disposed opposite to the first lower surface of the main body, the second upper surface having a combustion chamber, the opening of the combustion chamber corresponding to the ignition electrode, for accommodating fuel and receiving heat generated by the ignition electrode to ignite the fuel; the base also has a smoke exhaust device for guiding the smoke generated in the combustion chamber to the outside of the smoker.

[0006] Preferably, the top periphery of the receiving groove is provided with a radially extending first positioning edge, and the second upper surface of the base is provided with a second positioning edge that matches the first positioning edge, and the two are pressed together to form an anti-torsion locking structure.

[0007] Preferably, the second upper surface is provided with a boss, and the inner wall of the receiving groove and the side wall of the boss of the base are both provided with inclined surfaces with the same inclination angle, and the two slide together to achieve self-guiding centering.

[0008] Preferably, a first magnet is arranged in an array within the receiving groove, and a second magnet corresponding to the first magnet is provided on the protrusion of the base, so that the main body and the base can be detachably connected by magnetic attraction.

[0009] Preferably, the combustion chamber is provided with an installation ring around its periphery, and the installation ring is embedded with a metal filter assembly with filter holes for blocking combustion residue.

[0010] Preferably, the mounting ring has a groove on its sidewall to facilitate the disassembly and replacement of the filter assembly.

[0011] Preferably, the smoke output device includes a rotatable first smoke output device with an indicator key on its side wall and a switch indicator corresponding to the indicator key on the second lower surface of the base, and the smoke output is adjusted by rotation.

[0012] Preferably, the main body includes a first upper surface, on which a switch button and a light button are provided; a third light component is provided around the first smoke outlet device, and the light mode is controlled by the light button on the main body.

[0013] Preferably, the switch button and the light button have concave textures to enhance anti-slip properties.

[0014] Preferably, the base is further provided with a second smoke outlet device for connecting an external smoke outlet pipe.

[0015] The advantages of this utility model over the prior art are as follows:

[0016] To address the issue that existing smoke generators have electrodes directly exposed on the bottom outer surface, which can easily lead to users accidentally touching the high-temperature surface and causing burns, the electrode pads are arranged entirely within a recessed receiving groove on the first lower surface of the main body. The surrounding walls form an effective structural shield, significantly reducing the probability of users accidentally touching the high-temperature electrode pads when picking up, moving, or maintaining the equipment, thus effectively avoiding the risk of burns. Attached Figure Description

[0017] The accompanying drawings, which form part of this application, are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an undue limitation of the present invention. In the drawings:

[0018] Figure 1 A perspective view of an embodiment of this utility model;

[0019] Figure 2 for Figure 1 A schematic diagram of the main body in the embodiment;

[0020] Figure 3 for Figure 2 The schematic diagram of the receiving groove in the embodiment shown;

[0021] Figure 4 for Figure 1 An exploded view of the embodiment shown;

[0022] Figure 5 for Figure 1 A schematic diagram of the base structure in the embodiment shown;

[0023] Figure 6 for Figure 4 The diagram shows the structural schematic of the filtering component in the embodiment shown.

[0024] Figure 7 for Figure 1 A schematic diagram of the structure of the second lower surface of the base in the embodiment shown;

[0025] Figure 8 for Figure 7 A partial schematic diagram of the indicator keys and switch indicator labels in the illustrated embodiment;

[0026] Figure 9 for Figure 1 A cross-sectional schematic diagram of the main body in the illustrated embodiment;

[0027] Figure 10 This is a schematic diagram of another embodiment of the present invention;

[0028] Figure 11 for Figure 10 A schematic diagram of the base structure in the Chinese embodiment.

[0029] Reference numerals: smoker (1); main body (100); base (200); first upper surface (110); first lower surface (120); first side surface (130); switch button (111); light button (112); concave texture (113); first light assembly (114); power socket (131); second light assembly (132); receiving groove (121); first positioning edge (122); ignition electrode plate (123); first magnet (124); fixing plate (125); second upper surface (210); second lower surface (220); first... Second side (230); Bolt (211); Boss (212); Third upper surface (213); Third side (214); Second magnet (215); Second positioning edge (231); Combustion chamber (216); Mounting ring (217); Filter assembly (218); Filter hole (219); Slot (2191); First smoke outlet device (221); Smoke channel (222); Indicator key (223); Switch indicator mark (224); Third light assembly (225); Second smoke outlet device (226); Protrusion (300); Placement slot (301). Detailed Implementation

[0030] 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, not all embodiments. The following description of at least one exemplary embodiment is illustrative in nature and is in no way intended to limit the present utility model or its application or use. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0031] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0032] Unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps described in these embodiments do not limit the scope of this invention. It should also be understood that, for ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as exemplary rather than limiting. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following figures denote similar items; therefore, once an item is defined in one figure, it need not be further discussed in subsequent figures.

[0033] like Figure 1 As shown, a smoker 1 includes two parts: a main body 100 and a base 200. The main body 100 is composed of a first upper surface 110, a first lower surface 120, and a first side surface 130 (see...). Figure 2 and Figure 3 The first upper surface 110 is provided with a power switch 111 and a light button 112. The power switch 111 is used to control the start and stop of the smoker 1. The surfaces of both the power switch 111 and the light button 112 are designed with concave textures 113 (see...). Figure 2The structure provides users with a better fingertip feel and positioning when touching or pressing, effectively preventing slippage and misoperation caused by wet hands, oil stains, or smoke condensation, ensuring accuracy and safety in use. The first upper surface 110 also features a first light assembly 114, which emits light signals of corresponding colors or flashing frequencies according to different working states when the smoker 1 is powered on or running. This allows users to intuitively determine whether the device is in heating, heat preservation, or standby mode without having to look down to check the internal structure or rely on other indicators. This light status feedback not only improves operational convenience but also clearly indicates the work progress in dimly lit environments, reducing the risk of misoperation and adding a certain atmosphere to the usage scenario. In other embodiments (not shown in the figure), the concave texture 113 can also be replaced with an convex texture to achieve the same effect.

[0034] See Figure 1 In this embodiment, the first side 130 of the main body 100 (see Figure 2 The device is equipped with a power socket 131 for connecting to an external power source to provide stable operating power to the smoker 1, or for charging the internal battery (not shown) if a rechargeable battery is provided. To facilitate user monitoring of the power status during use, a second lighting component 132 is located near the power socket 131. This lighting component is connected to the device's power management system (not shown) and emits different colors or flashing frequencies of light signals depending on the stage of operation when the smoker 1 is charging or powered on. For example, it can display a solid light of a specific color when charging begins, switch to another color or flash slowly when charging is nearing completion, and turn off or flash rapidly when charging is complete, allowing users to intuitively judge the power level and charging progress. This lighting design not only allows users to obtain power information without additional operation or reliance on other detection tools, but also clearly indicates the socket location in dimly lit environments, facilitating accurate plugging and unplugging of the power cord and reducing the possibility of mis-plugging or reverse plugging. Meanwhile, the indicator light when charging is complete reminds users to disconnect the power in time, which helps prevent overcharging from affecting battery performance, further extending the device's lifespan and improving overall safety and user experience.

[0035] In other embodiments (not shown in the figures), the smoker 1 can alternatively be equipped with a wireless charging module, which includes a wireless charging coil and related control circuitry. This allows the smoker 1 to be charged wirelessly without physical contact with the power socket 131. This wireless charging design avoids the cumbersome operation of traditional plugging and unplugging power cords, improving user convenience and safety. It is particularly suitable for humid or dusty environments, reducing the possibility of socket damage or poor contact, and extending the lifespan of the device. Furthermore, wireless charging allows for flexible charging location; users simply place the device on the wireless charging base to complete the charging process, further enhancing the device's intelligence and modernity. Alternatively, a temperature sensor can be configured to monitor the temperature of the combustion chamber 216 or the interior of the device in real time. The temperature sensor feeds back the collected temperature signal to the control system, which automatically adjusts the heating power of the ignition electrode 123 according to a preset temperature threshold, achieving automatic temperature control. This automatic temperature control effectively prevents overheating or excessive fuel combustion, ensuring safe operation and extending fuel life. Meanwhile, the temperature sensor settings can also display the current temperature to the user in real time through the data display module, making it easier for the user to understand the equipment's operating status and improving the intelligence and comfort of use.

[0036] like Figure 3 and Figure 9 As shown, in this embodiment, the first lower surface 120 of the main body 100 is recessed inward to form a receiving groove 121, and the receiving groove 121 has an inclined surface with a certain inclination angle on its inner wall. A radially extending first positioning edge 122 is provided at the periphery of the top of the receiving groove 121, forming a positioning interface. An ignition electrode 123 is mounted in the central region of the receiving groove 121 via a fixing piece 125, which fastens the edge of the ignition electrode 123 to suppress displacement. When energized, the ignition electrode 123 rapidly releases concentrated high heat energy to directly ignite the fuel, achieving stable combustion resistant to wind disturbance. The ignition electrode 123 is completely submerged in the recessed space of the receiving groove 121. The highest point of the ignition electrode 123 is always lower than the solid outer surface of the first lower surface 120 of the main body. The continuous wall of the receiving groove 121 forms a ring-shaped protective barrier around the electrode, preventing the operator's fingers from touching the high-temperature area of ​​the ignition electrode 123 when in contact with the first lower surface 120 due to spatial isolation, thus completely eliminating the risk of accidental burns. At the same time, the barrier structure resists damage to the ignition electrode 123 from impacts by external foreign objects. When the main body 100 is assembled with the base 200, the inclined surface of the main body 100 slides and engages with the corresponding inclined surface of the base 200 to achieve self-guiding centering. The first positioning edge 122 and the second positioning edge 231 of the base 200 are pressed together to form an anti-torsional locking, ensuring connection accuracy and load-bearing stability.

[0037] For details, see Figure 3The interior of the receiving slot 121 also contains a plurality of first magnets 124 evenly distributed in an array, and these first magnets 124 are connected to the base 200 (see Figure 4 The corresponding magnetic components on the base 100 generate a stable magnetic attraction, allowing the main body 100 to be automatically attracted and accurately positioned when it approaches the base 200. The installation process eliminates the need for traditional fixing methods such as screwing or snap-fitting, saving operation time and improving installation convenience and stability. Simultaneously, the magnetic attraction connection maintains a secure bond while facilitating easy disassembly, allowing users to quickly separate the main body 100 from the base 200 during routine cleaning or maintenance, reducing operational steps and improving the user experience.

[0038] See Figure 4 and Figure 9 In this embodiment, the base 200 includes a second upper surface 210, a second lower surface 220, and a second side surface 230 (see...). Figure 5 and Figure 7 The second upper surface 210 is located at the end opposite to the first lower surface 120 of the main body 100 and is provided with bolts 211 to enhance the stability and overall strength of the base 200 structure. A boss 212 extends upward from the center of the second upper surface 210, and this boss 212 has a third upper surface 213 and a third side surface 214. The boss 212 and the side wall of the receiving groove 121 have inclined surfaces at the same angle to enhance connection stability. A second magnet 215 is provided on the third upper surface 213 at a position corresponding to the first magnet 124 in the receiving groove 121 of the main body 100, ensuring magnetic adsorption between the two parts. The third side surface 214 of the boss 212 has a second positioning edge 231 that matches the first positioning edge 122. This second positioning edge 231 can extend into the receiving groove 121 of the main body 100 and achieve precise alignment with the first positioning edge 122 on the main body 100, thereby ensuring accurate positioning and a tight and stable connection between the base 200 and the main body 100 during assembly. During installation, the third upper surface 213 of the boss 212 closely fits the first lower surface 120 of the main body 100. Multiple mating mechanisms are achieved through the mechanical positioning of the first positioning edge 122 and the second positioning edge 231, and the magnetic attraction of the first magnet 124 and the second magnet 215. This ensures a strong connection and simplifies the installation process, eliminating the need for traditional, complex fixing steps. This structural design not only improves the efficiency of overall assembly and reduces the risk of loosening and malfunctions caused by improper installation, but also enhances the stability and safety of the equipment during use, further optimizing the user experience. Furthermore, in addition to the fixed connection between the main body 100 and the base 200 achieved through the first magnet 124 and the second magnet 215 in this embodiment, in other embodiments (not shown in the figures), snap-fit ​​or threaded connection structures can be provided on the main body 100 and the base 200 to complete the connection and fixation.

[0039] See Figure 5 In this embodiment, the third upper surface 213 is recessed to form a combustion chamber 216 for accommodating fuel blocks or fuel sheets, ensuring that the fuel can be stably positioned in the designated location. The layout of the combustion chamber 216 is similar to that of the ignition electrode 123 (see...). Figure 3 This design directly corresponds to the flame, effectively concentrating it to fully transfer the high-temperature energy generated by the ignition electrode 123 to the fuel, achieving rapid ignition and continuous combustion. The concentrated combustion zone not only improves combustion efficiency, making fuel combustion more complete and uniform, but also significantly enhances the stability and durability of the smoke effect, avoiding smoke fluctuations and inconsistent flavors caused by uneven combustion. Simultaneously, this efficient combustion method reduces fuel waste, improves equipment economy, lowers operating costs, and helps reduce harmful emissions, enhancing environmental performance. The rational structural design of the combustion chamber 216 not only meets the technical requirements for stable combustion in high-temperature environments but also creates favorable physical conditions for smoke generation and guidance, ensuring that smoke can smoothly and continuously pass through the smoke outlet channel, maintaining stable and continuous output, thereby greatly improving the overall user experience and equipment performance.

[0040] like Figure 4 As shown, a mounting ring 217 is provided around the periphery of the combustion chamber 216. A matching metal filter assembly 218 is installed inside the mounting ring 217. This filter assembly 218 has a plurality of evenly distributed filter holes 219 (see...). Figure 6 These filter holes 219 are designed to ensure smooth passage of smoke, guaranteeing the proper discharge of smoke generated during the operation of the fumigator 1, while effectively blocking larger particles of impurities and combustion residue. This prevents these impurities from entering the subsequent flue system, avoiding flue blockage and equipment performance degradation, thereby maintaining the purity and stability of the emitted smoke. One side of the mounting ring 217 extends outward to form a slot 2191 (see...). Figure 5 The slot 2191 design allows users to easily disassemble or replace the filter assembly 218 during routine maintenance without the need for additional tools or complex operations, greatly improving maintenance efficiency and convenience. This structure not only helps to promptly remove accumulated dust and impurities from the filter assembly 218, preventing a decline in filtration efficiency, but also extends the service life of the filter assembly 218 and the entire device, reducing maintenance frequency and costs, ensuring the stability and safety of the fumigator 1 during long-term use, and enhancing the overall user experience.

[0041] See Figure 7 In this embodiment, a first smoke exhaust device 221 is rotatably mounted at the center of the second lower surface 220 of the base 200. This first smoke exhaust device 221 is connected to the smoke channel 222 and can exhaust smoke from the combustion chamber 216 (see...) Figure 4The smoke generated inside is evenly guided to the outside of the equipment, ensuring the stability of the smoke output and the controllability of the concentration, thereby making the smoking effect more uniform and adjustable. An indicator key 223 (see...) is provided on one side of the first smoke outlet device 221. Figure 8 The second lower surface 220 is equipped with a switch indicator mark 224 next to the indicator key 223 (see...). Figure 8 Users can easily adjust the smoke output by rotating the first smoke outlet device 221, and even close the smoke channel 222, providing flexible and diverse smoke control methods to meet different usage needs and environmental adjustments. Multiple third light components 225 are distributed near the first smoke outlet device 221. These third light components 225 have various lighting modes and are controlled via the first upper surface 110 (see...). Figure 1 The light button 112 is set (see) Figure 1 The device allows for on / off switching and brightness adjustment, which not only compensates for the lack of lighting in traditional smokers, but also creates warm and soft or cool and varied light and shadow effects during use, significantly improving the overall user experience and atmosphere creation capabilities. This allows the device to better adapt to different scene requirements and enhance the user's sensory enjoyment and satisfaction.

[0042] For details, see Figure 7 In this embodiment, the second lower surface 220 of the base 200 is also provided with a second smoke outlet device 226. After rotating and closing the first smoke outlet device 221, the second smoke outlet device 226 can be connected to an external smoke outlet pipe (not shown in the figure) to guide the smoke generated by combustion to a specific space or container to meet more diverse usage needs. For example (not shown in the figure), when smoking food in a closed container, the smoke outlet pipe (not shown in the figure) can accurately deliver the smoke to the inside of the container to achieve a uniform and efficient smoking effect; when used for aromatherapy diffusion in a specific place, the smoke is guided to a predetermined area through the smoke outlet pipe (not shown in the figure) to create a comfortable and pleasant atmosphere. This design not only expands the application range of the smoker 1, making it applicable to a wider range of scenarios and functions, but also improves the practicality and flexibility of the device, meets the personalized needs of different users, and enhances the market competitiveness and user experience of the product.

[0043] like Figure 10 and Figure 11As shown, in other embodiments, the smoker 1 may not have the receiving groove 121. Instead, a ring-shaped isolation structure composed of multiple independent protrusions 300 may be directly provided on the first lower surface 120 of the main body 100. This isolation structure tightly surrounds the ignition electrode 123 to form a physical isolation barrier, and the height of the ignition electrode 123 never exceeds the top surface of the protrusions 300, thereby reducing the processing complexity while maintaining the safety against burns. Correspondingly, a combustion chamber 216 is recessed on the second upper surface 210 of the base 200. Its opening position accurately receives the heat energy released by the ignition electrode 123 to ignite the fuel. An annular placement groove 301 is added around the combustion chamber 216. The outline of the placement groove 301 is perfectly matched with the isolation structure of the protrusions 300 of the main body 100. When the two are nested together, they can achieve rapid alignment through mechanical interference and suppress horizontal displacement through side wall contact, which significantly improves the anti-shaking stability when the main body 100 and the base 200 are connected.

[0044] In the description of this utility model, it should be understood that the directional terms such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description. Unless otherwise stated, these directional terms do not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the scope of protection of this utility model. The directional terms "inner" and "outer" refer to the inner and outer contours of each component itself.

[0045] For ease of description, spatial relative terms such as "above," "on top of," "on the upper surface of," "above," etc., are used herein to describe the spatial positional relationship of a device or feature as shown in the figures to other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation beyond the orientation of the device as described in the figures. For example, if the device in the figures were inverted, a device described as "above" or "on top of" other devices or structures would subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein will be interpreted accordingly.

[0046] Furthermore, it should be noted that the use of terms such as "first" and "second" to define components is for the purpose of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore cannot be construed as limiting the scope of protection of this utility model.

[0047] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A smoker comprising a main body (100) and a base (200), characterized in that, The main body (100) has a first lower surface (120), which is recessed inward to form a receiving groove (121). An ignition electrode plate (123) is provided in the receiving groove (121). The height of the ignition electrode plate (123) is lower than the height of the outer surface of the first lower surface (120), and the circumferential wall of the receiving groove (121) is continuously arranged to surround the ignition electrode plate (123). The base (200) includes a second upper surface (210) disposed opposite to the first lower surface (120) of the main body (100). A combustion chamber (216) is provided on the second upper surface (210). The opening position of the combustion chamber (216) corresponds to that of the ignition electrode plate (123) and is used to contain fuel and receive the heat generated by the ignition electrode plate (123) to ignite the fuel. The base (200) is also provided with a smoke outlet device for guiding the smoke generated in the combustion chamber (216) to the outside of the smoke generator.

2. The smoker of claim 1, wherein, The top periphery of the receiving groove (121) is provided with a radially extending first positioning edge (122), and the second upper surface (210) of the base (200) is provided with a second positioning edge (231) that matches the first positioning edge (122). The two are pressed together to form an anti-torsion locking structure.

3. The smoker of claim 1, wherein, The second upper surface (210) is provided with a boss (212), and the inner wall of the receiving groove (121) and the side wall of the boss (212) of the base (200) are both provided with inclined surfaces with the same inclination angle. The two slide together to achieve self-guiding centering.

4. The smoker of claim 3, wherein, The receiving groove (121) is arrayed with first magnets (124), and the boss (212) of the base (200) is provided with second magnets (215) corresponding to the first magnets (124). The main body (100) and the base (200) are detachably connected by magnetic attraction.

5. The smoker of claim 1, wherein, The combustion chamber (216) is provided with an installation ring (217) around its perimeter. The installation ring (217) is embedded with a metal filter assembly (218) with filter holes (219) for blocking combustion residue.

6. The smoker of claim 5, wherein, The mounting ring (217) has a slot (2191) on its side wall to facilitate the disassembly and replacement of the filter assembly (218).

7. The smoker of claim 1, wherein, The smoke output device includes a rotatable first smoke output device (221), which has an indicator key (223) on its side wall. The second lower surface (220) of the base (200) is provided with a switch indicator (224) corresponding to the indicator key (223), and the smoke output is adjusted by rotation.

8. The smoker of claim 7, wherein, The main body (100) includes a first upper surface (110), on which a switch button (111) and a light button (112) are provided; a third light assembly (225) is provided around the first smoke outlet device (221), and the light mode is controlled by the light button (112) on the main body (100).

9. The smoker of claim 8, wherein, The switch button (111) and the light button (112) are provided with concave textures (113) to enhance anti-slip properties.

10. The smoker of claim 7, wherein, The base (200) is also provided with a second smoke outlet device (226) for connecting an external smoke outlet pipe.

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