Outdoor fire lighting device for a fire pit

By designing an outdoor ignition device for heating stoves that includes a shell, flammable parts, magnesium rods, and elastic components, the problem that existing ignition devices are not suitable for newcomers and users is solved, achieving a fast and reliable ignition effect.

CN118960035BActive Publication Date: 2026-07-24SICHUAN XINRONGOU EMERGENCY EQUIPMENT CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
SICHUAN XINRONGOU EMERGENCY EQUIPMENT CO LTD
Filing Date
2024-09-12
Publication Date
2026-07-24

AI Technical Summary

Technical Problem

Existing ignition devices lack a positive experience when used outdoors, and are especially unsuitable for newcomers and users, requiring the collection of flammable materials and specific skills.

Method used

An outdoor ignition device for a heating stove was designed, comprising a shell, flammable components, a magnesium rod, and an elastic component. The elastic component provides elastic force to cause the magnesium rod to move and rub within the shell to generate sparks. Combined with fan blades and air ducts, the oxygen content is increased to ensure rapid ignition.

Benefits of technology

It provides a convenient ignition method, suitable for beginners and users, and improves the reliability and efficiency of ignition, ensuring rapid ignition of flammable materials in outdoor environments.

✦ Generated by Eureka AI based on patent content.

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Abstract

The present application relates to a kind of heating stove outdoor ignition device, belongs to the field of ignition device.Heating stove outdoor ignition device includes shell, combustible, end cover, magnesium rod and elastic component.First cavity is equipped in shell, and the one end of shell in first direction has the first opening communicated with first cavity;Combustible is contained in first cavity;End cover covers and seals first opening;Magnesium rod one end is located in shell, and shell has first wall in second direction, first wall is equipped with the first through-hole adapted with magnesium rod, magnesium rod has first position and second position in second direction, magnesium rod is configured as: when being located in first position, the volume outside shell is minimum;When being located in second position, the volume outside shell is maximum;First direction is perpendicular to second direction;Elastic component is arranged outside shell, and is connected with magnesium rod transmission, and elastic component is used to provide elastic force to magnesium rod, to make magnesium rod move to first position.
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Description

Technical Field

[0001] This invention belongs to the field of ignition devices, and specifically relates to an outdoor ignition device for a heating stove. Background Technology

[0002] When using a heater outdoors, the choice and use of the ignition device is crucial. Current technology generally uses lighters and matches for direct ignition, but these devices lack an outdoor experience and fail to provide users with a positive outdoor ignition experience. Using flint or magnesium rods requires collecting easily flammable materials outdoors and demands certain ignition skills, making them unsuitable for beginners and those new to outdoor activities. Summary of the Invention

[0003] In view of the above problems, this application provides an outdoor ignition device for a heating stove, which can provide users with a positive outdoor ignition experience while facilitating ignition.

[0004] This application provides an outdoor ignition device for a heating stove, including a housing, a flammable component, an end cap, a magnesium rod, and an elastic component. The housing has a first cavity, and one end of the housing in a first direction has a first opening communicating with the first cavity. The flammable component is housed within the first cavity. The end cap seals the first opening. One end of the magnesium rod is located within the housing. The housing has a first wall in a second direction, and the first wall has a first through hole adapted to the magnesium rod. The magnesium rod has a first position and a second position in the second direction. The magnesium rod is configured such that: in the first position, its volume outside the housing is minimal; in the second position, its volume outside the housing is maximum. The first direction is perpendicular to the second direction. The elastic component is disposed outside the housing and is drively connected to the magnesium rod. The elastic component provides an elastic force to the magnesium rod, causing the magnesium rod to move towards the first position.

[0005] Specifically, the end cap seals the first opening to prevent external liquids from entering the first cavity and wetting the flammable components during transport, which could lead to ignition failure. When igniting the heater is needed, the end cap can be removed to allow air to enter the first cavity through the first opening. At this time, the housing moves relative to the magnesium rod along the second direction, causing the magnesium rod to move to the second position. This allows the periphery of the magnesium rod to continuously rub against the structural components inside the housing or the wall of the first through hole to generate sparks and ignite the flammable components. During this process, repeatedly releasing the handle will cause the elastic component to continuously move the magnesium rod back to the first position, allowing the operator to gradually become familiar with the angle and method of scraping the magnesium rod. At the same time, it allows the magnesium rod to quickly return to a state where it can be scraped to generate sparks, facilitating rapid ignition. This provides positive outdoor ignition feedback to the operator while teaching them how to use the magnesium rod, and makes it easier for beginners and users to quickly ignite the heater.

[0006] In some embodiments, the elastic component includes a mounting bracket, a rotating shaft, a connecting rope, and a spring. A second cavity is provided within the housing, and the second cavity and the first cavity are arranged sequentially along the first direction. The mounting bracket is disposed within the second cavity. The rotating shaft is rotatably disposed on the mounting bracket. One end of the connecting rope is wound around the circumference of the rotating shaft, and the other end is connected to the end of the magnesium rod located within the first cavity. One end of the spring is connected to the mounting bracket, and the other end of the spring is connected to the rotating shaft.

[0007] In the above technical solution, the spring is placed inside the housing by the mounting bracket, which reduces the risk of external debris getting stuck in the spring during the carrying process, causing the elastic component to fail and improving the reliability of the device.

[0008] In some embodiments, the outdoor ignition device of the heating stove further includes fan blades. The fan blades are disposed around the circumference of the rotating shaft, and the end of the housing away from the first opening in a first direction has a second opening communicating with the second cavity; the housing is also provided with an air supply duct communicating with the first cavity and the second cavity, and the fan blades rotate to drive air to move from the first cavity to the second cavity, or from the second cavity to the first cavity, through the air supply duct.

[0009] In the above technical solution, the movement of the magnesium rod causes the connecting rope to rotate, or the return motion of the spring causes the rotating shaft to move, thereby driving the fan blades to rotate. This, in turn, causes air to move from the first cavity to the second cavity, or from the second cavity to the first cavity, through the air duct. This allows the first cavity to have sufficient gas exchange with the outside world through the second opening and the first opening, increasing the oxygen content in the first cavity. This makes it easier for the spark generated by the magnesium rod to ignite flammable parts, thus making it easier for the operator to start a fire.

[0010] In some embodiments, the air duct has a first end communicating with the first cavity, and along the first direction, the first end is located between the magnesium rod and the flammable element.

[0011] In the above technical solution, the first end is located between the magnesium rod and the flammable component, so that the air moving from the second cavity to the first cavity and the air moving from the first cavity to the second cavity can both pass through the flammable component, which facilitates the spark generated by the magnesium rod to ignite the flammable component, thus making it easier for the operator to start the fire.

[0012] In some embodiments, the housing has a second wall corresponding to the first wall in a second direction, the second wall having a second through hole communicating with the first cavity and a third through hole communicating with the second cavity, and the end of the connecting rope away from the rotating shaft passing through the third through hole and the second through hole in sequence to connect with the magnesium rod.

[0013] In the above technical solution, the connecting rope connects the magnesium rod located in the first cavity and the rotating shaft located in the second cavity through the second through hole and the third through hole, so that there is no need to open an obstacle avoidance structure in the shell, and the structure is simple and easy to implement.

[0014] In some embodiments, the outdoor ignition device for the heating stove further includes a sliding cover. The sliding cover is slidable relative to the housing in the second direction to cover the second opening, and when the sliding cover covers the second opening, the connecting rope is clamped by the sliding cover and the housing.

[0015] In the above technical solution, the sliding cover seals the second opening to prevent external liquids from entering the first cavity and wetting the flammable parts during carrying, which could lead to ignition failure. At the same time, when the sliding cover seals the second opening, the connecting rope is clamped by the sliding cover and the housing, thereby limiting the connecting rope and thus limiting the magnesium rod to prevent it from falling off when not in use.

[0016] In some embodiments, the end cap has a first groove corresponding to the sliding cover at one end along the first direction away from the housing, and the first groove extends along the second direction.

[0017] In the above technical solution, a first groove corresponding to the sliding cover is provided at one end of the shell away from the first direction of the end cover, so that the sliding cover can be inserted into the first groove after the sliding cover is removed to prevent the sliding cover from being lost.

[0018] In some embodiments, the flammable component includes an ignition part and a flame-resistant part, wherein the ignition part is located between the flame-resistant part and the magnesium rod along the first direction; the connecting rope has a first segment and a second segment connected in sequence, the first segment being connected to the magnesium rod, and the ignition point of the first segment being lower than that of the second segment.

[0019] In the above technical solution, the ignition point of the first section is lower than that of the second section, making the first section more flammable than the second. Therefore, after the flammable component ignites, and the magnesium rod is in the second position, the first section is more easily ignited, allowing the magnesium rod to be pulled out from the first through-hole. At this time, the second section, being less easily ignited, remains. After the initial ignition, the end cap can seal the first opening, and the sliding cover can seal the second opening, allowing the first and second cavities to exchange gas with the outside environment only through the first and second through-holes. This results in insufficient oxygen in the first cavity, causing the flame to become incompletely burned (i.e., a spark state), which is retained by the flame-retardant part. When re-ignition is needed, the end cap and sliding cover can be removed, and the second section can be pulled, causing the rotating shaft to drive the fan blades, thereby reigniting the sparks in the flame-retardant part. This preserves the fire source for a relatively long period.

[0020] In some embodiments, the first groove has a first side in the second direction, the first side being recessed to form a second groove for receiving the connecting rope, and the sliding cover abutting against the first side to press the connecting rope against the second groove in the second direction.

[0021] In the above technical solution, the connecting rope is pressed against the second groove in the second direction by the sliding cover and the first side abutting together, thereby fixing one end of the connecting rope by the cooperation of the sliding cover and the end cover. On the one hand, the connecting rope can be pulled by the end cover, reducing the risk of the connecting rope scratching the fingers; on the other hand, it reduces the risk of the operator losing the end cover and sliding cover due to arbitrary placement.

[0022] In some embodiments, the outdoor ignition device for the heating furnace further includes a scraper and an elastic element. One end of the scraper is disposed on the inner surface of the first wall and is rotatable relative to the first wall, and the periphery of the magnesium rod abuts against the other end of the scraper; the elastic element is disposed between the scraper and the first wall, and the elastic element provides elastic force to guide the scraper to rotate closer to the first wall to block the first through hole.

[0023] In the above technical solution, by setting scrapers and elastic elements, the shell scrapes the magnesium rod when it moves relative to the magnesium rod, which makes it easier for the magnesium rod to generate sparks and thus facilitates ignition. Attached Figure Description

[0024] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0025] Figure 1 This is a schematic diagram of the structure of the outdoor ignition device for a heating stove provided in an embodiment of the present invention;

[0026] Figure 2 This is a schematic diagram of the outdoor ignition device for a heating stove provided in an embodiment of the present invention after removing the end cap;

[0027] Figure 3 This is a cross-sectional view of the outdoor ignition device for a heating stove when the magnesium rod is in the first position, as provided in an embodiment of the present invention.

[0028] Figure 4 This is a cross-sectional view of the outdoor ignition device for a heating furnace when the magnesium rod is in the second position, provided in an embodiment of the present invention.

[0029] Figure 5 This is a schematic diagram of the structure of some elastic components provided in an embodiment of the present invention;

[0030] Figure 6 A cross-sectional view of the outdoor ignition device for a heating stove provided in an embodiment of the present invention from another direction;

[0031] Figure 7 for Figure 2 A schematic diagram of the outdoor ignition device for the heating stove in direction A.

[0032] Figure 8 for Figure 3 A magnified view of a section at point B in the middle;

[0033] Figure 9 This is a schematic diagram of the end cap and sliding cover provided in an embodiment of the present invention;

[0034] Figure 10 A schematic diagram of the structure of an outdoor ignition device for a heating stove in another state provided by an embodiment of the present invention;

[0035] Figure 11 for Figure 3 A magnified view of a section at point C. Detailed Implementation

[0036] The embodiments of this application will now be described in detail with reference to the accompanying drawings.

[0037] In the description of this application, it should be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., 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 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.

[0038] 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. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, unless otherwise stated, "a plurality of" means two or more.

[0039] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; 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; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0040] When using a heater outdoors, the choice and use of the ignition device is crucial. Current technology generally uses lighters and matches for direct ignition, but these devices lack an outdoor experience and fail to provide users with a positive outdoor ignition experience. Using flint or magnesium rods requires collecting easily flammable materials outdoors and demands certain ignition skills, making them unsuitable for beginners and those new to outdoor activities.

[0041] To solve the above technical problems, refer to Figures 1-4 An outdoor ignition device for a heating stove includes a housing 1, a flammable component 2, an end cap 5, a magnesium rod 4, and an elastic component 3. The housing 1 has a first cavity 11, and one end of the housing 1 in a first direction X has a first opening 111 communicating with the first cavity 11. The flammable component 2 is housed within the first cavity 11. The end cap 5 seals the first opening 111. One end of the magnesium rod 4 is located inside the housing 1. The housing 1 has a first wall 10A in a second direction Y, and a first through hole adapted to the magnesium rod 4 is formed on the first wall 10A. The magnesium rod 4 has a first position and a second position in the second direction Y. The magnesium rod 4 is configured such that: in the first position, its volume outside the housing 1 is minimized; in the second position, its volume outside the housing 1 is maximized. The first direction X is perpendicular to the second direction Y. The elastic component 3 is disposed outside the housing 1 and is connected to the magnesium rod 4 in a transmission manner. The elastic component 3 is used to provide an elastic force to the magnesium rod 4 to move the magnesium rod 4 towards the first position.

[0042] The housing 1 is a hollow component for accommodating the flammable component 2 and other components. Understandably, the housing 1 is made of a material that is not easily combustible and has poor thermal conductivity. For example, the housing 1 may be made of ceramic, or the housing 1 may be made of a metal material and coated with a heat-insulating material on the periphery of the housing 1.

[0043] Understandably, the end cap 5 should be made of a material similar to or the same as that of the housing 1.

[0044] The Magnesium Fire Starter is a very practical outdoor fire starter, especially suitable for use in harsh weather conditions. It is typically made of magnesium alloy and covered with a layer of magnesium shavings. It produces sparks when scratched by a hard surface.

[0045] The flammable component 2 is made of a material that is easily ignited. For example, the flammable component 2 may include at least one or more of the following materials: tinder, wood chips, cotton, cotton balls, rosin, and wax.

[0046] The elastic component 3 is a part or component for providing elastic force to the magnesium rod 4. For example, the elastic component 3 can be a tension spring, one end of which is connected to the wall portion of the housing 1 away from the first wall 10A in the second direction Y, and the other end of which is connected to the end of the magnesium rod 4 located in the first cavity 11.

[0047] The first direction X is the length direction of the shell 1. When using the device, the first direction X can be parallel to or at an acute angle to the direction of gravity so that the sparks generated by the magnesium rod 4 can move towards the flammable part 2 under the action of gravity; the second direction Y is a horizontal direction set perpendicular to the first direction X.

[0048] Specifically, the end cap 5 seals the first opening 111 to prevent external liquids from entering the first cavity 11 and wetting the flammable component 2 during transport, which could lead to ignition failure. When it is necessary to ignite the heater, the end cap 5 can be removed to allow air to enter the first cavity 11 through the first opening 111. At this time, the housing 1 moves relative to the magnesium rod 4 along the second direction Y, causing the magnesium rod 4 to move to the second position. This allows the periphery of the magnesium rod 4 to continuously rub against the structural components inside the housing 1 or the wall of the first through hole to generate sparks and ignite the flammable component 2. During this process, by repeatedly releasing the handle, the elastic component 3 will continuously move the magnesium rod 4 to the first position, allowing the operator to gradually become familiar with the angle and method of scraping the magnesium rod 4. At the same time, it allows the magnesium rod 4 to quickly return to a state where it can be scraped to generate sparks, facilitating rapid ignition. This provides positive outdoor ignition feedback to the operator while teaching them how to use the magnesium rod 4, and makes it easier for beginners and users to ignite quickly.

[0049] According to some embodiments of this application, refer to Figures 3-5The elastic component 3 includes a mounting bracket 31, a rotating shaft 32, a connecting rope 33, and a spring 34. A second cavity 12 is provided inside the housing 1. The second cavity 12 and the first cavity 11 are arranged sequentially along the first direction X. The mounting bracket 31 is disposed within the second cavity 12. The rotating shaft 32 is rotatably disposed on the mounting bracket 31. One end of the connecting rope 33 is wound around the circumference of the rotating shaft 32, and the other end is connected to the end of the magnesium rod 4 located within the first cavity 11. One end of the spring 34 is connected to the mounting bracket 31, and the other end of the spring 34 is connected to the rotating shaft 32.

[0050] Mounting bracket 31 is a mounting structure for rotatably mounting the rotating shaft 32 within the second cavity 12.

[0051] A mainspring is a common type of mechanical spring, typically used in mechanical clocks, wind-up toys, and other wind-up devices. Its primary function is to drive the movement of mechanical mechanisms by storing and releasing energy.

[0052] In some embodiments, refer to Figure 5 The mounting bracket 31 is equipped with a mounting ring 311. The rotating shaft 32 and the spring 34 are coaxially arranged. The outermost end of the spring 34 is connected to the inner wall of the mounting ring 311, and the innermost end of the spring 34 is connected to the outer periphery of the rotating shaft 32. When the magnesium rod 4 moves to the second position, the spring 34 elastically deforms to store force when the connecting rope 33 drives the rotating shaft 32 to rotate. Subsequently, the spring 34 returns to its original deformation to drive the rotating shaft 32 to reset, thereby driving the connecting rope 33 to move the magnesium rod 4 in the first direction X.

[0053] In some embodiments, refer to Figure 5 A tray 321 is provided at the end of the rotating shaft 32 away from the mounting bracket 31. The radial dimension of the tray 321 is larger than the radial dimension of the rotating shaft 32, so as to form a stepped surface between the tray 321 and the rotating shaft 32. The connecting rope 33 is located between the stepped surface and the mounting bracket 31.

[0054] In this design, the spring 34 is housed inside the housing 1 by mounting bracket 31, which reduces the risk of external debris getting stuck in the spring 34 during transport, causing the elastic component 3 to fail and improving the reliability of the device.

[0055] According to some embodiments of this application, refer to Figures 3-6The outdoor ignition device of the heating stove also includes a fan blade 6. The fan blade 6 is disposed around the rotating shaft 32. The end of the housing 1 away from the first opening 111 in the first direction X has a second opening 121 that communicates with the second cavity 12. The housing 1 is also provided with an air supply duct 122 that connects the first cavity 11 and the second cavity 12. The fan blade 6 rotates to drive air through the air supply duct 122 from the first cavity 11 to the second cavity 12, or from the second cavity 12 to the first cavity 11.

[0056] It can be understood that the fan blade 6 rotates to drive the gas in the second cavity 12 to move in a direction close to the second opening 121 or close to the air duct 122.

[0057] In some embodiments, refer to Figure 6 The air duct 122 extends along the first direction X and is arranged with the first cavity 11 along the third direction Z, so as to make full use of the internal space of the housing 1 in the third direction Z.

[0058] The first direction X, the second direction Y, and the third direction Z are set perpendicular to each other.

[0059] In some embodiments, the second cavity 12 has a guide surface on the side away from the second opening 121 in the first direction X. The guide surface is used to guide the air in the second cavity 12 to move towards the air conveying duct 122 when the fan blade 6 drives the air from the second cavity 12 into the air conveying duct 122.

[0060] In this scheme, the movement of the magnesium rod 4 causes the connecting rope 33 to rotate, or the return movement of the spring 34 causes the rotating shaft 32 to move, thereby driving the fan blade 6 to rotate. This, in turn, causes air to move from the first cavity 11 to the second cavity 12 through the air duct 122, or from the second cavity 12 to the first cavity 11. This allows the first cavity 11 to have sufficient gas exchange with the outside world through the second opening 121 and the first opening 111, increasing the oxygen content in the first cavity 11. This makes it easier for the spark generated by the magnesium rod 4 to ignite the flammable component 2, thus making it easier for the operator to start the fire.

[0061] According to some embodiments of this application, refer to Figure 6 The air duct 122 has a first end 122A that communicates with the first cavity 11. Along the first direction X, the first end 122A is located between the magnesium rod 4 and the flammable component 2.

[0062] In this design, the first end 122A is located between the magnesium rod 4 and the flammable component 2, so that the air moving from the second cavity 12 to the first cavity 11 and the air moving from the first cavity 11 to the second cavity 12 can both pass through the flammable component 2, making it easier for the spark generated by the magnesium rod 4 to ignite the flammable component 2, thus making it easier for the operator to start the fire.

[0063] According to some embodiments of this application, refer to Figure 3 , Figure 4 and Figure 7 The housing 1 has a second wall 10B in the second direction Y, which is corresponding to the first wall 10A. The second wall 10B has a second through hole 12B communicating with the first cavity 11 and a third through hole 13B communicating with the second cavity 12. The end of the connecting rope 33 away from the rotating shaft 32 passes through the third through hole 13B and the second through hole 12B in sequence to connect with the magnesium rod 4.

[0064] In some embodiments, refer to Figure 7 The second wall 10B has a first clearance groove 11B for accommodating the connecting rope 33. The first clearance groove 11B extends along the first direction X, and its two ends are close to the second through hole 12B and the third through hole 13B, respectively. By setting the first clearance groove 11B, the risk of the connecting rope 33 chafing the operator's hand holding the housing 1 is reduced.

[0065] In this design, the connecting rope 33 connects the magnesium rod 4 located in the first cavity 11 and the rotating shaft 32 located in the second cavity 12 through the second through hole 12B and the third through hole 13B, thus eliminating the need to create an obstacle avoidance structure in the housing 1, making the structure simple and easy to implement.

[0066] According to some embodiments of this application, refer to Figure 3 , Figure 4 and Figure 8 The outdoor ignition device for the heating stove also includes a sliding cover 7. The sliding cover 7 can slide relative to the housing 1 along the second direction Y to cover the second opening 121. When the sliding cover 7 covers the second opening 121, the connecting rope 33 is clamped by the sliding cover 7 and the housing 1.

[0067] The sliding cover 7 is a plate-shaped structure that is slidably disposed in the second opening 121. For example, the second cavity 12 has two side walls that are opposite to each other in the third direction Z, and the sliding cover 7 is provided with a sliding groove for sliding in the second direction Y. In some embodiments, the sliding cover 7 and the sliding groove can be an interference fit to increase the resistance when the sliding cover 7 slides.

[0068] In this solution, the sliding cover 7 seals the second opening 121 to prevent external liquids from entering the first cavity 11 and wetting the flammable component 2 during transport, which could lead to ignition failure. At the same time, when the sliding cover 7 seals the second opening 121, the connecting rope 33 is clamped by the sliding cover 7 and the housing 1, thereby limiting the connecting rope 33 and thus limiting the magnesium rod 4 to prevent it from falling off when not in use.

[0069] According to some embodiments of this application, refer to Figure 3 and Figure 4 In some embodiments, the flammable component 2 includes an ignition part 21 and a flame-resistant part 22, with the ignition part 21 located between the flame-resistant part 22 and the magnesium rod 4 along the first direction X; the connecting rope 33 has a first segment and a second segment connected in sequence, the first segment being connected to the magnesium rod 4, and the ignition point of the first segment being lower than that of the second segment.

[0070] For example, the ignition part 21 may be made of flammable materials such as cotton or cotton balls; the flame-retardant part 22 may be made of materials such as sulfur, saltpeter, rosin, or phosphorus.

[0071] The first section can be made of cotton thread or nylon, and the second section can be made of metal.

[0072] In some embodiments, the end cap 5 has a second clearance groove 53 corresponding to the first through hole and the second through hole 12B, so that after the magnesium rod 4 is pulled out, the first cavity 11 can exchange gas with the outside through the first through hole and the second through hole 12B.

[0073] In this design, the ignition point of the first section is lower than that of the second section, making the first section more flammable than the second. Therefore, when the flammable component 2 ignites and the magnesium rod 4 is in the second position, the first section can be easily ignited, allowing the magnesium rod 4 to be pulled out from the first through-hole. At this time, the second section, being less easily ignited, remains intact. After the initial ignition, the end cap 5 seals the first opening 111, and the sliding cover 7 seals the second opening 121. This allows the first cavity 11 and the second cavity 12 to exchange gas with the outside environment only through the first and second through-holes 12B. This results in insufficient oxygen in the first cavity 11, causing the flame to become incompletely burned (i.e., a spark state), which is retained by the flame-resistant part 22. When re-ignition is needed, the end cap 5 and the sliding cover 7 can be removed, and the second section can be pulled to rotate the rotating shaft 32, causing the fan blade 6 to rotate, which in turn reignites the spark in the flame-resistant part 22. This preserves the fire source for a relatively long period.

[0074] According to some embodiments of this application, refer to Figure 9 and Figure 10 The first groove 51 has a first side in the second direction Y, the first side being recessed to form a second groove 52 for receiving the connecting rope 33, and the sliding cover 7 abuts against the first side to press the connecting rope 33 against the second groove 52 in the second direction Y.

[0075] In this solution, the connecting rope 33 is pressed against the second groove 52 in the second direction Y by the sliding cover 7 and the first side abutting each other, thereby fixing one end of the connecting rope 33 by cooperating with the end cover 5. On the one hand, the connecting rope 33 can be moved by the end cover 5, reducing the risk of the connecting rope 33 scratching the fingers; on the other hand, it reduces the risk of the operator losing the end cover 5 and the sliding cover 7 due to arbitrary placement.

[0076] According to some embodiments of this application, refer to Figure 11 The outdoor ignition device for the heating stove also includes a scraper 8 and an elastic element. One end of the scraper 8 is disposed on the inner surface of the first wall 10A and can rotate relative to the first wall 10A. The periphery of the magnesium rod 4 abuts against the other end of the scraper 8. The elastic element is disposed between the scraper 8 and the first wall 10A, and the elastic element provides elastic force to guide the scraper 8 to rotate closer to the first wall 10A to block the first through hole.

[0077] The elastic element can be a spring.

[0078] The scraper blade 8 is made of hard metal. Specifically, when the magnesium rod 4 moves to the second position, the friction between the magnesium rod 4 and the scraper blade 8 and the elastic force of the elastic element will cause the scraper blade 8 to rotate towards the first wall 10A, thereby causing the scraper blade 8 to scrape the magnesium rod 4, which facilitates the generation of sparks in the magnesium rod 4 and thus facilitates ignition; when the magnesium rod 4 moves to the first position, the friction between the magnesium rod 4 and the scraper blade 8 will cause the scraper blade 8 to overcome the elastic force and rotate away from the first wall 10A, thereby reducing the scraping of the magnesium rod 4 by the scraper blade 8.

[0079] In this scheme, by setting scraper 8 and elastic element, the shell 1 scrapes against magnesium rod 4 when it moves relative to magnesium rod 4, which makes it easier for magnesium rod 4 to generate sparks, thus making it easier to ignite.

[0080] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other.

[0081] The above embodiments are only used to illustrate the technical solutions of this application and are not intended to limit this application. For those skilled in the art, this application can have various modifications and variations. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. An outdoor ignition device for a heating stove, characterized in that, include: A housing having a first cavity inside, wherein one end of the housing in a first direction has a first opening communicating with the first cavity; Flammable components are housed within the first cavity; End cap, sealing the first opening; A magnesium rod, one end of which is located within the first cavity, is positioned along the first direction on one side of the flammable component. The housing has a first wall in the second direction, and a first through hole adapted to the magnesium rod is formed on the first wall. The magnesium rod has a first position and a second position in the second direction. The magnesium rod is configured such that its volume outside the housing is minimized in the first position and maximized in the second position. The first direction is perpendicular to the second direction and is parallel to or at an acute angle to the direction of gravity, so that sparks generated by the magnesium rod can move towards the flammable component under the influence of gravity. An elastic component is disposed outside the housing and is connected to the magnesium rod in a transmission manner. The elastic component is used to provide an elastic force to the magnesium rod so that the magnesium rod moves toward the first position. The elastic component includes: The mounting bracket has a second cavity inside the housing. The second cavity and the first cavity are arranged sequentially along the first direction, and the mounting bracket is disposed inside the second cavity. A rotating shaft is rotatably mounted on the mounting bracket; A connecting rope, one end of which is wound around the circumference of the rotating shaft, and the other end of which is connected to the end of the magnesium rod located in the first cavity; A spring is connected at one end to the mounting bracket and at the other end to the rotating shaft; The outdoor ignition device for the heating stove also includes: Fan blades are disposed around the circumference of the rotating shaft, and the housing has a second opening communicating with the second cavity at the end away from the first opening in a first direction; The housing is also provided with an air supply duct connecting the first cavity and the second cavity. The fan blades rotate to drive air to move from the first cavity to the second cavity, or from the second cavity to the first cavity, through the air supply duct. The scraper has one end disposed on the inner surface of the first wall and can rotate relative to the first wall, and the circumference of the magnesium rod abuts against the other end of the scraper. An elastic element is disposed between the scraper and the first wall, the elastic element providing elastic force to guide the scraper to rotate closer to the first wall to block the first through hole.

2. The outdoor ignition device for a heating stove according to claim 1, characterized in that, The air duct has a first end that communicates with the first cavity, and along the first direction, the first end is located between the magnesium rod and the flammable component.

3. The outdoor ignition device for a heating stove according to claim 1, characterized in that, The housing has a second wall corresponding to the first wall in the second direction. The second wall has a second through hole communicating with the first cavity and a third through hole communicating with the second cavity. The end of the connecting rope away from the rotating shaft passes through the third through hole and the second through hole in sequence to connect with the magnesium rod.

4. The outdoor ignition device for a heating stove according to claim 3, characterized in that, The outdoor ignition device for the heating stove also includes: A sliding cover that can slide relative to the housing in the second direction to cover the second opening, wherein when the sliding cover covers the second opening, the connecting rope is clamped by the sliding cover and the housing.

5. The outdoor ignition device for a heating stove according to claim 4, characterized in that, The end cap has a first groove corresponding to the sliding cover at one end away from the housing along the first direction, and the first groove extends along the second direction.

6. The outdoor ignition device for a heating stove according to claim 5, characterized in that, The flammable component includes an ignition part and a flame-resistant part, wherein the ignition part is located between the flame-resistant part and the magnesium rod along the first direction; The connecting rope has a first section and a second section connected in sequence. The first section is connected to the magnesium rod, and the ignition point of the first section is lower than that of the second section.

7. An outdoor ignition device for a heating stove according to claim 6, characterized in that, The first groove has a first side in the second direction, the first side being recessed to form a second groove for receiving the connecting rope, and the sliding cover abutting against the first side to press the connecting rope against the second groove in the second direction.

Citation Information

Patent Citations

  • Pressure-lever type single-hand fire-making device

    CN103528091A

  • Igniter for scratching ignition

    CN203797699U