Tonder basin

Abstract

The invention discloses a kindling basin, and belongs to the technical field of combustors. The kindling basin mainly comprises a shell, a burner and a gas pipe. An air cavity is formed in the shell, and the combustor is detachably installed on the top of the shell. The burner is provided with an injection pipe, a base and a plurality of flame columns. An outlet of the gas pipe extends into an inlet of the injection pipe, and gas is sprayed out to entrain air in the air cavity, so that primary premixed gas is formed. And the gas enters the primary mixing cavity in the base for secondary mixing, then passes through a distribution plane formed by the top wall of the primary mixing cavity, is uniformly distributed to the secondary distribution cavities of the flame columns through the communicating holes, and finally is sprayed out from the fire holes for combustion. Through the two-stage mixing and plane distribution structure, the problem of non-uniform flame caused by non-uniform mixing of gas and air and unstable distribution pressure in a traditional mode is effectively solved, and the combustion stability, the ignition reliability and the use effect are remarkably improved.

Description

Technical Field

[0001] This application relates to the field of burner technology, and more particularly to a tinder pot. Background Technology

[0002] In existing technologies, ignition devices used for pipeline ignition or outdoor ignition typically employ a direct combustion method by creating multiple flame holes in the gas pipeline wall. This method results in significant differences in gas pressure and flow rate at the flame holes located at different distances from the gas inlet due to friction losses as the gas flows through the pipeline. This uneven pressure distribution prevents the flame from burning evenly and stably, severely impacting ignition reliability and performance. Summary of the Invention

[0003] The purpose of this application is to provide a tinderbox to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, this application provides the following technical solution: A tinderbox, comprising: The shell contains an air cavity. The burner is detachably mounted on top of the housing; A gas pipe, the outlet end of which is connected to the burner; The burner includes: An ejector tube, the inlet of which is located in the air cavity, and the outlet end of the gas pipe extends into the inlet of the ejector tube so that when the gas is ejected, it can entrain air at the inlet and form a primary premixed gas. The base has a primary mixing chamber that communicates with the ejector tube outlet for secondary mixing of the primary premixed gas. Multiple flame columns are circumferentially distributed on the upper surface of the base. Each flame column has a secondary distribution cavity, and the top of the flame column is provided with multiple fire holes communicating with the secondary distribution cavity. The top wall of the primary mixing chamber forms a distribution plane, and each of the secondary distribution chambers is connected to the primary mixing chamber through a connecting hole formed on the distribution plane.

[0005] Furthermore, the plurality of flame columns are evenly spaced.

[0006] Furthermore, each of the flame columns extends from the outer peripheral edge of the base towards the central region of the base, and the plurality of fire holes are evenly spaced along the length direction of the flame column.

[0007] Furthermore, it also includes a windproof fire cover, which is placed above the burner and has multiple through holes for the flame column to pass through.

[0008] Furthermore, each through hole of the windproof fire cover has a downwardly extending flange, which is fitted over the outside of the corresponding flame column and is spaced apart from the side wall and top fire hole of the flame column.

[0009] Furthermore, the periphery of the windproof and fireproof cover is provided with a notch or groove, which communicates with the air cavity.

[0010] Furthermore, the housing includes a detachable upper housing and a lower housing, with the lower housing located below the upper housing; The upper housing has a first inner cavity and a second inner cavity arranged coaxially, wherein the first inner cavity surrounds the outside of the second inner cavity; A third inner cavity is formed inside the lower housing. The first inner cavity, the second inner cavity, and the third inner cavity are connected in sequence to form the air cavity. The top of the upper housing has multiple first air inlets that communicate with the first inner cavity; The bottom of the upper housing protrudes radially outward relative to the side wall of the lower housing in the horizontal direction, forming an annular boss. The bottom wall of the annular boss is provided with a plurality of second air inlets that communicate with the first inner cavity. The bottom wall of the lower housing has multiple third air inlets that communicate with the third inner cavity.

[0011] Furthermore, the top of the upper housing is recessed downward to form a recessed area for accommodating the burner, and the peripheral wall of the recessed area is formed as an inclined wall extending downward from the outside to the inside, and the first air inlet is disposed on the inclined wall.

[0012] Furthermore, the upper surface of the base has at least one drainage hole in the central region, the drainage hole penetrating the base and communicating with the second inner cavity below.

[0013] Furthermore, it also includes: A base that is connected to the bottom of the housing; An adjustable mounting structure is provided at the bottom of the base, the adjustable mounting structure including a mounting bracket and a column fixed to the bottom of the base; The mounting bracket is provided with mounting holes and a long strip-shaped sliding groove extending along its length. The sliding groove slides in cooperation with the column, so that the mounting bracket can move relative to the base between an extended position and a retracted position. In the extended position, the mounting bracket extends beyond the projection range of the base so as to be fixed through the mounting hole.

[0014] The technical solutions provided in this application have the following advantages compared with the prior art: The ignition basin provided in this application embodiment has gas ejected from the gas pipe outlet and enters the injector inlet, where it entrains air to form a primary premixed gas. The primary premixed gas enters the primary mixing chamber in the base for secondary mixing. Then, it enters the secondary distribution chamber of each flame column through the connecting holes on the distribution plane, and finally is ejected from multiple fire holes at the top of the flame column for combustion.

[0015] This application uses an ejector tube to draw in air to form a primary premixed gas, which is then mixed a second time in a primary mixing chamber. This makes the gas and air mix more thoroughly and evenly, improving the problem of unstable flame combustion caused by uneven pressure distribution in traditional direct combustion methods, and enhancing ignition reliability and performance. Attached Figure Description

[0016] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this application and, together with the description, serve to explain the principles of this application.

[0017] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, for those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] One or more embodiments are illustrated by way of example with reference numerals in the accompanying drawings. These illustrations do not constitute a limitation on the embodiments. Elements with the same reference numerals in the drawings are denoted as similar elements. Unless otherwise stated, the figures in the drawings are not to be limited by scale.

[0019] Figure 1 This is a cross-sectional schematic diagram of the tinder basin provided in an embodiment of this application.

[0020] Figure 2 This is a cross-sectional view of the burner and windproof fire cover after assembly, as provided in the embodiments of this application.

[0021] Figure 3 A perspective view of a burner provided in an embodiment of this application.

[0022] Figure 4 for Figure 3 A magnified schematic diagram of the structure of C.

[0023] Figure 5 A perspective view of the windproof and fireproof cover provided in the embodiments of this application.

[0024] Figure 6 for Figure 1 A magnified schematic diagram of the structure of A in the middle.

[0025] Figure 7 for Figure 1 A magnified schematic diagram of the structure of B in the middle.

[0026] Figure 8 This is a perspective view of the tinder basin provided in an embodiment of this application.

[0027] Figure 9 for Figure 8 A magnified schematic diagram of the structure of D.

[0028] Figure 10 This is a schematic diagram of the mounting bracket provided in the embodiment of this application in its storage position.

[0029] Figure 11 for Figure 10 A magnified schematic diagram of the structure of E in the middle.

[0030] Explanation of reference numerals in the attached figures: 1. Housing; 11. Air cavity; 12. Upper housing; 121. First inner cavity; 122. Second inner cavity; 123. First air inlet; 124. Annular boss; 125. Second air inlet; 126. Inclined wall; 13. Lower housing; 131. Third inner cavity; 132. Third air inlet; 2. Burner; 21. Injector tube; 22. Base; 221. Primary mixing chamber; 222. Connecting hole; 223. Drain hole; 23. Flame column; 231. Secondary distribution chamber; 232. Flame hole; 3. Gas pipe; 4. Windproof and fireproof cover; 41. Through hole; 42. Flanged edge; 43. Notch groove; 5. Base; 6. Mounting bracket; 61. Mounting hole; 62. Slide groove; 7. Columns. Detailed Implementation

[0031] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0032] The following disclosure provides numerous different embodiments or examples for implementing various structures of this application. To simplify the disclosure, specific examples of components and arrangements are described below. These are merely examples and are not intended to limit the scope of this application. Furthermore, reference numerals and / or letters may be repeated in different examples. Such repetition is for simplification and clarity and does not in itself indicate a relationship between the various embodiments and / or arrangements discussed.

[0033] For ease of description, spatial relative terms may be used in the text to describe the relative position or movement of one element or feature relative to another element or feature, as shown in the figure. These relative terms include, for example, "inside," "outside," "middle," "outer," "below," "below," "above," "front," "back," etc. Such spatial relative terms are intended to include different orientations of the device in use or operation, other than those depicted in the figure. For example, if the device in the figure undergoes a positional flip, orientation change, or change of motion, these directional indications will change accordingly. For instance, an element described as "below other elements or features" or "below other elements or features" will subsequently be oriented "above other elements or features" or "above other elements or features." Therefore, the example term "below" can include both upper and lower orientations. The device may be otherwise oriented (rotated 90 degrees or in other directions), and the spatial relative descriptors used in the text will be interpreted accordingly.

[0034] Figures 1 to 11 A tinderbox provided in this application embodiment includes a housing 1, a burner 2, and a gas pipe 3. An air cavity 11 is formed inside the housing 1, the burner 2 is detachably mounted on the top of the housing 1, and the outlet end of the gas pipe 3 is connected to the burner 2.

[0035] Specifically, the burner 2 includes an ejector tube 21, a base 22, and multiple flame columns 23.

[0036] The inlet of the ejector tube 21 is located inside the air cavity 11, and the outlet end of the gas pipe 3 extends into the inlet of the ejector tube 21, so that when the gas is ejected, air can be entrained at the inlet to form a primary premixed gas. Specifically, when the gas is ejected at high speed from the outlet end of the gas pipe 3, according to the entrainment principle in fluid mechanics, a negative pressure area is formed at the inlet of the ejector tube 21, thereby entraining air from the air cavity 11, so that the gas and air are initially mixed here to form a primary premixed gas.

[0037] A primary mixing chamber 221, connected to the outlet of the ejector tube 21, is formed within the base 22 for secondary mixing of the primary premixed gas. It can be understood that the primary premixed gas then enters the primary mixing chamber 221 within the base 22. In the primary mixing chamber 221, the fuel gas and air are further and thoroughly mixed, achieving a secondary mixing process that makes the mixed gas more homogeneous, providing favorable conditions for subsequent stable combustion.

[0038] Multiple flame columns 23 are circumferentially distributed on the upper surface of the base 22. Each flame column 23 has a secondary distribution chamber 231, and the top of the flame column 23 is provided with multiple flame holes 232 communicating with the secondary distribution chamber 231. The top wall of the primary mixing chamber 221 forms a distribution plane, and each secondary distribution chamber 231 is connected to the primary mixing chamber 221 through a connecting hole 222 opened on the distribution plane.

[0039] It is understandable that the gas after secondary mixing is evenly distributed to the secondary distribution chambers 231 of each flame column 23 through the connecting hole 222, and finally ejected from the multiple fire holes 232 at the top of the flame column 23, and ignited at the fire holes to form a stable flame.

[0040] In this application, air is drawn in through the ejector tube 21 to form a primary premixed gas, which is then mixed a second time in the primary mixing chamber 221, greatly improving the uniformity of the gas-air mixture. Compared to the traditional combustion method of directly opening multiple burner holes on the gas pipeline wall, this avoids the problem of unstable flame combustion caused by large differences in gas pressure and flow rate at different burner holes due to friction loss along the way. This allows for more uniform and stable flame combustion, effectively improving ignition reliability and performance.

[0041] Meanwhile, multiple flame columns 23 are circumferentially distributed on the upper surface of the base, and each flame column 23 has multiple fire holes 232 at its top. This structure allows the gas to be evenly distributed to each flame column 23 after secondary mixing and ejected from the fire holes 232, ensuring the uniform distribution of the flame throughout the combustion area, further enhancing the stability of combustion, and reducing the occurrence of incomplete local combustion or flame extinguishing.

[0042] Please refer to Figure 3 In a preferred embodiment, multiple flame columns 23 are evenly spaced. This even distribution ensures a more balanced supply of gas to each flame column 23, preventing flame instability caused by excessive or insufficient gas supply in certain areas. For example, it prevents a situation where one flame column 23 has an excessively large and intense flame due to excessive gas supply, while adjacent flame columns 23 have a weak or even extinguished flame due to insufficient gas supply, thus ensuring continuous and stable combustion of the entire tinderbox flame.

[0043] Furthermore, under the influence of external environmental factors (such as wind), the evenly distributed flame columns 23 can support and balance each other. When the flame on one side is affected by wind, the flames of the other flame columns 23 can provide a certain degree of stability, reducing the possibility of the flame being blown out and improving the reliability of the tinderbox in complex environments.

[0044] Meanwhile, each flame column 23 extends from the outer periphery of the base 22 towards the center of the base 22, and multiple flame holes 232 are evenly spaced along the length of the flame column 23. This design makes the flow of gas within the flame column 23 more uniform, and the gas flow and pressure at each flame hole 232 are relatively consistent, avoiding flame flickering, jumping, or extinguishing caused by uneven local airflow, and ensuring continuous and stable combustion of the flame.

[0045] Please refer to Figure 2 The tinder basin of this application also includes a windproof fire cover 4, which is placed above the burner 2 and has multiple through holes 41 for the flame of the flame column 23 to pass through.

[0046] When the burner 2 is working normally, the flame column 23 produces a flame. Because the windproof flame cover 4 has multiple through holes 41, which correspond one-to-one with the flame column 23, the flame can pass smoothly through the through holes 41. As the flame passes through the through holes 41, its shape and direction are constrained and guided by the through holes 41, thus forming a relatively stable and concentrated flame pattern.

[0047] When there is wind, the windproof cover 4 acts to block and weaken the wind. The wind is first blocked by the solid part of the windproof cover 4, and only part of the wind can affect the flame through the through hole 41. Moreover, the design of the through hole 41 usually takes into account the direction and intensity of the wind, and adopts an appropriate shape and size to further reduce the direct impact of the wind on the flame, so that the flame can continue to burn in a relatively stable environment.

[0048] For details, please refer to Figure 2 and Figure 5 Each through-hole 41 of the windproof fireproof cover 4 has a downwardly extending flange 42. The flange 42 is fitted onto the outside of the corresponding flame column 23 and is spaced apart from the side wall and top flame hole 232 of the flame column 23. That is, the wall of each through-hole 41 extends downward to form a tubular flange 42. The flange 42 is fitted onto the outside of the corresponding flame column 23, meaning that the inner diameter of the flange 42 is larger than the outer diameter of the flame column 23. Thus, a certain annular interval is maintained between the inner wall of the flange 42 and the side wall of the flame column 23, and between the bottom end of the flange 42 and the top flame hole 232 of the flame column 23.

[0049] During use, the annular gap formed between the flange 42 and the side wall of the flame column 23 constitutes a secondary air supply channel. When the flame is burning, external air can be continuously drawn into the root of the flame through this channel, providing sufficient oxygen for combustion, thereby ensuring continuous and complete combustion and effectively preventing extinction due to lack of oxygen.

[0050] Meanwhile, the annular gap between the bottom of the flange 42 and the top fire hole 232 of the flame column 23 physically isolates the flame area of ​​each flame column 23 at the root, while maintaining gas communication. When external wind forces act, the flange 42 first blocks and diverts the wind, greatly weakening the wind force that directly impacts the root of the flame, thus significantly enhancing the flame's wind resistance.

[0051] Furthermore, when a flame is accidentally extinguished due to a sudden strong wind or other reasons, the high-temperature flue gas and heat of its adjacent flames can be rapidly transferred to the extinguished flame column 23 area through the annular interval, preheating it and igniting the outflowing gas, thus achieving rapid flame transfer and greatly improving the reliability and safety of use.

[0052] This application further defines the casing 1; for details, please refer to [reference needed]. Figure 1 and Figure 7 The housing 1 includes a detachable upper housing 12 and a lower housing 13, with the lower housing 13 located below the upper housing 12.

[0053] The upper housing 12 has a first inner cavity 121 and a second inner cavity 122 formed coaxially, wherein the first inner cavity 121 surrounds the outside of the second inner cavity 122.

[0054] A third inner cavity 131 is formed inside the lower shell 13. The first inner cavity 121, the second inner cavity 122 and the third inner cavity 131 are connected in sequence to form an air cavity 11.

[0055] The top of the upper housing 12 has multiple first air inlets 123 that communicate with the first inner cavity 121.

[0056] The bottom of the upper housing 12 protrudes radially outward relative to the side wall of the lower housing 13 in the horizontal direction, forming an annular boss 124. Multiple second air inlets 125 communicating with the first inner cavity 121 are provided on the bottom wall of the annular boss 124.

[0057] The bottom wall of the lower housing 13 is provided with a plurality of third air inlets 132 that communicate with the third inner cavity 131.

[0058] This design allows outside air to enter the air chamber of the tinder pot through three pathways. Specifically, a portion of the air enters directly into the upper part of the first inner cavity 121 through the first air inlet 123 at the top of the upper shell 12; another portion of the air enters the lower part of the first inner cavity 121 through the second air inlet 125 on the bottom wall of the annular boss 124 at the bottom of the upper shell 12; and a third portion of the air enters the third inner cavity 131 through the third air inlet 132 on the bottom wall of the lower shell 13.

[0059] Air entering the first inner cavity 121 undergoes initial buffering and mixing. Because the first inner cavity 121 surrounds the second inner cavity 122, this structure allows for a relatively stable airflow within the first inner cavity 121. Air entering the third inner cavity 131 also undergoes some buffering and adjustment within it. Subsequently, the air in the first inner cavity 121, the second inner cavity 122, and the third inner cavity 131 are sequentially connected, further mixing and homogenizing during the flow, providing suitable air conditions for subsequent combustion.

[0060] The air eventually flows into the ejector tube 21, providing sufficient oxygen for the combustion of the gas therein.

[0061] It is particularly important to note that during use, rainwater may enter the first inner cavity through the first air inlet 123. When rainwater enters the first inner cavity 121 through the first air inlet 123 at the top, it will collect downwards along the cavity wall under the action of gravity. Due to the design of the second air inlet 125, the accumulated water will automatically drain out through this hole, effectively preventing rainwater from accumulating in the first inner cavity 121.

[0062] Understandably, the second air inlet 125 can be used as both an air inlet and a drain outlet, achieving "one hole for two purposes." Without adding extra parts, it solves the problem of water accumulation in outdoor products, significantly improving the product's environmental adaptability and service life.

[0063] Specifically, the top of the upper housing 12 is recessed downwards to form a recessed area for accommodating the burner 2. The peripheral wall of the recessed area is formed as an inclined wall 126 extending downwards from the outside to the inside, and a first air inlet 123 is provided on the inclined wall 126. When rainwater (or other splashed liquid) falls into the recessed area from above, the inclined wall 126 guides it to quickly collect downwards along the wall surface and enter the first inner cavity 121 through the first air inlet 123, rather than accumulating on the surface of the upper housing 12. The liquid entering the first inner cavity 121 will naturally flow to the lowest point of the cavity under the action of gravity, namely the second air inlet 125 located on the bottom wall of the annular boss 124, and then be discharged outside the housing.

[0064] To ensure rapid drainage even in extreme conditions (such as heavy rain or large liquid splashes), the windproof and fireproof cover 4 in this embodiment has been further optimized. For example... Figure 5 , Figure 7 and Figure 8 As shown, the periphery of the windproof and fireproof cover 4 is provided with a notch 43, which communicates with the air cavity 11. When the windproof and fireproof cover 4 is installed and covers the recessed area of ​​the burner 2 and the upper housing 12, the lower opening of the notch 43 is connected to the side wall of the recessed area of ​​the upper housing 12, thereby communicating with the first inner cavity 121 and forming an additional emergency drainage channel.

[0065] Specifically, although the inclined wall 126 can effectively divert most of the water coming from the top, the drainage efficiency may be limited in extreme cases such as a sudden surge in liquid flow (e.g., a torrential downpour) or partial blockage of the first air inlet 123 by foreign objects (e.g., fallen leaves, dust). The notch groove 43, as a larger channel, provides redundant drainage capacity for such situations. That is, excess liquid that cannot be drained from the first air inlet 123 in time can be immediately discharged directly into the first inner cavity 121 through the notch groove 43.

[0066] Additionally, please refer to Figure 3 The base 22 has at least one drain hole 223 in the central area of ​​its upper surface. The drain hole 223 penetrates the base 22 and communicates with the lower second inner cavity 122. When the tinder pot is in use, rainwater or other liquids will inevitably drip directly onto the upper surface of the base 22, bypassing the protection of the windproof fire cover 4. Some of the liquid will be burned and evaporated, while the rest will enter the second inner cavity 122 through the drain hole 223 and then be discharged through the third air inlet 132 of the lower shell 13.

[0067] To achieve convenient and flexible installation and storage, the tinderbox of this application further includes a base 5 and an adjustable mounting structure. The base 5 is connected to the bottom of the housing 1 (i.e., to the bottom of the lower housing 13). The adjustable mounting structure is located at the bottom of the base 5 and includes a mounting bracket 6 and a column 7 fixed to the bottom of the base 5.

[0068] The mounting bracket 6 has mounting holes 61 and an elongated groove 62 extending along its length. The groove 62 slides against the column 7, allowing the mounting bracket 6 to move relative to the base 5 between an extended position and a retracted position. In the extended position, the mounting bracket 6 partially extends beyond the projection range of the base 5 to be secured via the mounting holes 61. Figure 1 and Figure 7 The mounting bracket 6 is located at the extended position. Figure 10 and Figure 11 The location of the mounting bracket 6 is the storage location.

[0069] When the tinderbox needs to be installed, the mounting bracket 6 can be pushed or pulled by applying external force to allow the column 7 to slide within the groove 62. Since the groove 62 is elongated, the mounting bracket 6 can move along its length within a certain range, thus adjusting its position relative to the base 5. Once the mounting bracket 6 is in the appropriate extended position, the user can securely fix it to the mounting surface by passing bolts or wood screws through the mounting holes and screwing them into the threaded holes on the external mounting surface or stage. For example, the tinderbox can be placed on the stage, and the mounting bracket 6 can be pulled outwards, exposing the mounting holes 61 on the mounting bracket 6 to the stage. Bolts or wood screws can then be passed through the mounting holes 61 to fix the mounting bracket 6 to the stage, thus securing the tinderbox to the stage. Because the cooperation between the column 7 and the groove 62 provides stable support, the fixed tinderbox can withstand a certain amount of external force without shaking or displacement.

[0070] Understandably, the adjustable mounting structure facilitates the installation of the tinder pot. Furthermore, when the tinder pot is no longer needed or requires transportation or storage, the mounting bracket 6 can be moved to the storage position, retracting it back into the projection area of ​​the base 5. This reduces the overall space occupied by the tinder pot, making storage and transportation easier.

[0071] Additionally, it should be noted that the top of the base 5 is connected to the bottom of the lower housing 13, and the bottom of the lower housing 13 protrudes radially from the side wall of the top of the base 5. Therefore, when rainwater or other liquids enter the third inner cavity 131, these liquids can be discharged through the third air inlet 132, preventing accumulation within the third inner cavity 131.

[0072] In the above embodiments, the descriptions of each embodiment have different focuses. For parts that are not described in detail in a certain embodiment, please refer to the relevant descriptions in other embodiments.

[0073] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this application and simplifying the description, and 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. Therefore, they should not be construed as limitations on this application.

[0074] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0075] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0076] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature being directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0077] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. The illustrative expressions of the above terms in this specification should not be construed as necessarily referring to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. In addition, those skilled in the art can combine and integrate the different embodiments or examples described in this specification.

[0078] Obviously, those skilled in the art can make various modifications and variations to this application without departing from the spirit and scope of this application. Since these modifications and variations fall within the scope of the claims and their equivalents, this application also intends to include these modifications and variations.

[0079] The above description describes specific embodiments of this application, but the scope of protection of this application is not limited thereto. Any person skilled in the art can easily conceive of various equivalent modifications or substitutions within the technical scope disclosed in this application, and these modifications or substitutions should all be covered within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A tinderbox, characterized in that, include: The shell contains an air cavity. The burner is detachably mounted on top of the housing; A gas pipe, the outlet end of which is connected to the burner; The burner includes: An ejector tube, the inlet of which is located in the air cavity, and the outlet end of the gas pipe extends into the inlet of the ejector tube so that when the gas is ejected, it can entrain air at the inlet and form a primary premixed gas. The base has a primary mixing chamber that communicates with the ejector tube outlet for secondary mixing of the primary premixed gas. Multiple flame columns are circumferentially distributed on the upper surface of the base. Each flame column has a secondary distribution cavity, and the top of the flame column is provided with multiple fire holes communicating with the secondary distribution cavity. The top wall of the primary mixing chamber forms a distribution plane, and each of the secondary distribution chambers is connected to the primary mixing chamber through a connecting hole formed on the distribution plane.

2. The tinder basin according to claim 1, characterized in that, The multiple flame columns are evenly spaced.

3. The tinder basin according to claim 1, characterized in that, Each flame column extends from the outer peripheral edge of the base toward the central region of the base, and the plurality of flame holes are evenly spaced along the length of the flame column.

4. The tinderbox according to claim 1, characterized in that, It also includes a windproof fire cover, which is placed above the burner and has multiple through holes for the flame column to pass through.

5. The tinder basin according to claim 4, characterized in that, Each through-hole of the windproof fire cover has a downward-extending flange, which is fitted over the outside of the corresponding flame column and is spaced apart from the side wall and top fire hole of the flame column.

6. The tinder basin according to claim 4, characterized in that, The periphery of the windproof and fireproof cover is provided with a notch or groove, which communicates with the air cavity.

7. The tinderbox according to claim 1, characterized in that, The housing includes a detachable upper housing and a lower housing, with the lower housing located below the upper housing; The upper housing has a first inner cavity and a second inner cavity arranged coaxially, wherein the first inner cavity surrounds the outside of the second inner cavity; A third inner cavity is formed inside the lower housing. The first inner cavity, the second inner cavity, and the third inner cavity are connected in sequence to form the air cavity. The top of the upper housing has multiple first air inlets that communicate with the first inner cavity; The bottom of the upper housing protrudes radially outward relative to the side wall of the lower housing in the horizontal direction, forming an annular boss. The bottom wall of the annular boss is provided with a plurality of second air inlets that communicate with the first inner cavity. The bottom wall of the lower housing has multiple third air inlets that communicate with the third inner cavity.

8. The tinder basin according to claim 7, characterized in that, The top of the upper housing is recessed downward to form a recessed area for accommodating the burner. The peripheral wall of the recessed area is formed as an inclined wall extending downward from the outside to the inside, and the first air inlet is provided on the inclined wall.

9. The tinderbox according to claim 7, characterized in that, The upper surface of the base has at least one drainage hole in the central region, the drainage hole penetrating the base and communicating with the second inner cavity below.

10. The tinderbox according to claim 1, characterized in that, Also includes: A base that is connected to the bottom of the housing; An adjustable mounting structure is provided at the bottom of the base, the adjustable mounting structure including a mounting bracket and a column fixed to the bottom of the base; The mounting bracket is provided with mounting holes and a long strip-shaped sliding groove extending along its length. The sliding groove slides in cooperation with the column, so that the mounting bracket can move relative to the base between an extended position and a retracted position. In the extended position, the mounting bracket extends beyond the projection range of the base so as to be fixed through the mounting hole.

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