Assembled firewood stove
By installing airflow regulating components at the bottom of the combustion furnace to form an air intake channel and increase the area of the air outlet, the problems of unstable combustion and high noise in outdoor combustion furnaces under strong wind conditions are solved, achieving a more stable and quieter combustion effect.
Patent Information
- Application Number
- CN202520360094.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-03
- Publication Date
- 2026-02-13
- Estimated Expiration
- 2035-03-03
AI Technical Summary
Existing outdoor combustion stoves are unstable in strong winds, easily go out, and are noisy, affecting the user experience.
An airflow regulator is installed at the bottom of the combustion furnace to form an air intake channel, and the total area of the first air outlet is made larger than the total area of the air inlet. By regulating the airflow, stability and efficiency are improved.
It effectively reduces wind interference with airflow, improves combustion stability and efficiency, reduces noise, and enhances the adaptability and safety of outdoor combustion furnaces in windy environments.
Smart Images

Figure CN223909583U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to portable firewood and gas combustion device technical field, especially in kind of assembled firewood stove. BACKGROUND
[0002] With the trend of outdoor activities, outdoor combustion stove plays an important role in activities such as field survival, camping, picnic, etc. It can provide outdoor enthusiasts with heat source for cooking food, boiling water for heating, etc. greatly improving the comfort and convenience of outdoor activities. For example, in a cold outdoor environment, an efficient combustion stove can quickly boil water to brew hot drinks for participants, dispelling the cold; when camping in the wild, the combustion stove can also be used for cooking food, allowing participants to enjoy the fun of outdoor cooking. In addition, the portability design of the outdoor combustion stove makes it easy to carry, making it convenient for outdoor enthusiasts to use in different places, further expanding the range and possibility of outdoor activities.
[0003] However, most of the existing outdoor combustion stoves use natural air intake combustion mode, and the bottom of the stove is provided with air holes for gas intake and exhaust. When the wind is strong, the natural air intake combustion mode is easy to cause unstable combustion, and strong wind will interfere with the airflow at the air hole, making the air supply required for combustion uneven, causing the flame to be large and small, and even extinguished. SUMMARY
[0004] The main purpose of the utility model is to provide a kind of assembled firewood stove, it is aimed at reducing the interference of wind factor to combustion environment by airflow adjusting piece.
[0005] To achieve the above purpose, the assembled firewood stove includes a combustion stove and an airflow adjusting piece, the airflow adjusting piece is arranged at the bottom of the combustion stove, the bottom of the combustion stove is provided with any number of air inlet holes, the airflow adjusting piece and the bottom of the combustion stove form an air inlet channel, the side wall of the adjusting piece is provided with any number of first air outlet holes, the air inlet channel is connected with the air inlet hole and the first air outlet hole, and the total area of the first air outlet hole is greater than the total area of the air inlet hole.
[0006] In an embodiment of the utility model, the adjusting piece has a first side wall and a second side wall arranged oppositely, and the first side wall and the second side wall are both provided with the first air outlet hole.
[0007] In an embodiment of the utility model, each first air outlet hole of the first side wall corresponds to a first air outlet hole of the second side wall.
[0008] In an embodiment of the utility model, the airflow adjusting piece is fixedly connected with the combustion stove and covers the first air outlet hole.
[0009] In an embodiment of the utility model, the combustion furnace includes foldable base and enclosure, the enclosure is connected with the foldable base and forms combustion chamber, the enclosure is provided with a plurality of circulating air holes, the combustion chamber is communicated with the first air outlet and the circulating air hole.
[0010] In an embodiment of the utility model, the enclosure includes a plurality of arc-shaped enclosure pieces, and any two adjacent arc-shaped enclosure pieces are detachably connected.
[0011] In an embodiment of the utility model, the enclosure includes an enclosure plate and an inner net, the enclosure plate is provided with the circulating air hole, and the inner net is attached to the inner wall of the enclosure plate.
[0012] In an embodiment of the utility model, the enclosure is detachably connected with the foldable base.
[0013] The enclosure is welded with the foldable base.
[0014] In an embodiment of the utility model, the assembled wood-burning stove further includes a folding table, and the assembled wood-burning stove has a first use state, in which the folding table can be seated on the mouth of the combustion furnace.
[0015] In an embodiment of the utility model, the assembled wood-burning stove further includes a fire pan, and the assembled wood-burning stove has a second use state, in which the fire pan cover is arranged on the mouth of the combustion furnace, and in the first use state, the fire pan is arranged inside the combustion furnace, wherein the assembled wood-burning stove can be switched between the first use state and the second use state.
[0016] In the technical scheme of the utility model, the assembled wood-burning stove is provided with an airflow adjusting member at the bottom of the combustion furnace to form an air inlet channel, and the total area of the first air outlet is greater than the total area of the air inlet hole, which effectively reduces the air inlet flow rate, reduces the interference of wind power on airflow, improves the stability and efficiency of combustion, reduces noise, and enhances the adaptability and safety of the outdoor combustion furnace in a windy environment. BRIEF DESCRIPTION OF DRAWINGS
[0017] In order to more clearly illustrate the technical scheme in the embodiments of the utility model or the prior art, the drawings needed in the embodiment or prior art description will be briefly introduced below, and obviously, the drawings in the following description are only some embodiments of the utility model, and for those skilled in the art, other drawings can be obtained from the structure shown in the drawings without creative labor.
[0018] Figure 1 The structure diagram of an embodiment of the assembled wood-burning stove provided by the utility model.
[0019] Figure 2 Structure diagram of the airflow adjusting piece provided by the utility model;
[0020] Figure 3 Structure diagram of the fence provided by the utility model;
[0021] Figure 4 Structure diagram of an embodiment of the assembled wood-burning stove in the first use state provided by the utility model;
[0022] Figure 5 Structure diagram of an embodiment of the assembled wood-burning stove in the second use state provided by the utility model.
[0023] Explanation of the reference signs:
[0024] 10, combustion stove; 11, foldable base; 12, fence; 121, fence board; 122, inner net; 20, airflow adjusting piece; 20a, first air outlet; 201, first side wall; 202, second side wall; 30, folding table; 40, fire pan.
[0025] The implementation, functional features and advantages of the utility model will be further described with reference to the accompanying drawings in combination with the embodiments. DETAILED DESCRIPTION
[0026] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all the other embodiments obtained by the person skilled in the art without creative labor fall within the protection scope of the utility model.
[0027] It should be noted that all the directionality indications (such as up, down, left, right, front, back, etc.) in the embodiments of the utility model are only used to explain the relative position relationship, movement condition, etc. between the components in a certain specific posture (as shown in the drawings). If the specific posture changes, the directionality indications also change accordingly.
[0028] In addition, the description of "first", "second" and the like in the present application is only for the purpose of description, and cannot be understood as indicating or implying the relative importance of the technical features or implicitly indicating the number of the technical features. Therefore, the features limited by "first", "second" can be explicitly or implicitly included at least one of the features. In addition, the meaning of "and / or" appearing throughout the text includes three parallel schemes. For example, "A and / or B" includes A scheme, or B scheme, or A and B scheme. In addition, the technical solutions of each embodiment can be combined with each other, but it must be based on the realization of ordinary skilled in the art, when the combination of technical solutions appears contradictory or unachievable, it should be considered that the combination of technical solutions does not exist, nor in the protection scope required by the present application.
[0029] Please refer to Figure 1 and Figure 2 , the assembled wood-burning stove comprises a combustion stove 10 and an air flow adjusting member 20, the air flow adjusting member 20 is arranged at the bottom of the combustion stove 10; the bottom of the combustion stove 10 is provided with any number of air inlet holes, the air flow adjusting member 20 and the bottom of the combustion stove 10 form an air inlet channel, the adjusting member is provided with any number of first air outlet holes 20a, the air inlet channel is communicated with the air inlet hole and the first air outlet hole 20a; the total area of the first air outlet hole 20a is greater than the total area of the air inlet hole.
[0030] In the technical scheme of the present application, the assembled wood-burning stove is provided with the air flow adjusting member 20 at the bottom of the combustion stove 10 to form an air inlet channel, and the total area of the first air outlet hole 20a is greater than the total area of the air inlet hole, which effectively reduces the air inlet flow rate, reduces the interference of wind power on air flow, improves the stability and efficiency of combustion, reduces noise, and enhances the adaptability and safety of the outdoor combustion stove 10 in the environment with large wind power.
[0031] The combustion furnace 10 is the base of the entire assembled wood-burning stove, and has a ring structure, which encloses an open combustion chamber. The top of the combustion chamber is provided with an opening structure for discharging smoke, dust and gas. The bottom of the combustion furnace 10 is provided with any number of air inlet holes, each of which penetrates the bottom of the combustion furnace 10 in the vertical direction to communicate with the outside atmosphere and the combustion chamber. The inner bottom wall of the combustion furnace 10 is provided with an airflow adjusting member 20, which has a hollow structure and a cross-section that can be a “U” shape, a triangle, etc. When the airflow adjusting member 20 is placed on the inner bottom wall of the combustion furnace 10, the two enclose an air inlet channel. At the same time, the airflow adjusting member 20 is provided with any number of first air outlet holes 20a on the top and / or side wall. Each first air outlet hole 20a communicates with the combustion chamber and the air inlet channel. The total area of the first air outlet holes 20a is greater than the total area of the air inlet holes. This design can reduce the air inlet flow rate, reduce air flow fluctuations, and make the combustion more stable. For example, in outdoor environments such as mountains or seashores where the wind is strong, this design can effectively prevent the flame from being blown away by the wind and ensure the stability of the combustion process. It can be understood that the overall shape of the airflow adjusting member 20 can be a circular ring, a square, etc. To ensure the stability of the airflow, the arrangement of the air inlet holes is consistent with the overall shape of the airflow adjusting member 20. For example, the bottom of the combustion furnace 10 is provided with a plurality of air inlet holes arranged in a circle around the center of the bottom, and the overall shape of the airflow adjusting member 20 can be a circular ring. The arrangement of the air inlet holes is not limited.
[0032] In an embodiment, referring to Figure 2 , the airflow adjusting member 20 has a first side wall 201 and a second side wall 202 arranged opposite to each other. The first side wall 201 and the second side wall 202 are both provided with first air outlet holes 20a. Specifically, the cross-section of the airflow adjusting member 20 is a “U” shape. In this way, the first side wall 201 and the second side wall 202 of the airflow adjusting member 20 are arranged close to the inner circumferential wall and close to the center of the stove, respectively. The two opposite side walls can realize double-side air outlet, which can ensure that the airflow enters the combustion chamber uniformly from multiple directions, thereby improving the uniformity and stability of combustion. This helps to avoid local airflow being too strong or too weak, and ensures that the combustion process is more stable. At the same time, the plurality of first air outlet holes 20a are uniformly spaced along the first side wall 201 and the second side wall 202, which can ensure that the fuel and oxygen are in full contact, improve the combustion efficiency, and the design of multiple air outlet holes can reduce the fluctuation of airflow and reduce the degree of turbulence of airflow, which helps to reduce the noise during combustion and improve the user experience.
[0033] In an embodiment of the utility model, each first air outlet 20a of first side wall 201 corresponds to a first air outlet 20a of second side wall 202, so that the two aligned first air outlets 20a can further reduce the fluctuation of air flow, reduce the turbulence degree of air flow, and by aligning the two first air outlets 20a, the wind from different directions can be adapted to, ensure that the combustion process is not affected by the change of wind direction, and further improve the stability of combustion.
[0034] Further, the airflow adjusting piece 20 is fixedly connected to the combustion furnace 10 and covers the air inlet hole. Specifically, the airflow adjusting piece 20 can be welded at the bottom of the combustion furnace 10, or a slot structure matching the shape of the airflow adjusting piece 20 is arranged at the bottom of the combustion furnace 10, and the airflow adjusting piece 20 is inserted into the slot structure to realize the fixed connection with the combustion furnace 10. In this way, through the fixed connection, the airflow adjusting piece 20 and the combustion furnace 10 form an integral structure, ensuring that the airflow in the air inlet channel flows more stably, and covering the first air outlet 20a can prevent external wind from directly interfering with the airflow, reducing the fluctuation of the airflow, making the combustion process more stable. At the same time, covering the first air outlet 20a can prevent foreign matter from directly entering the combustion chamber, avoiding interference with the combustion process or causing safety accidents. For example, the area of a single first air outlet 20a is smaller than the area of a single air inlet hole, and a foreign matter with a large volume that accidentally enters the air inlet hole is blocked by the first air outlet 20a, thereby improving the safety performance.
[0035] In an embodiment, the combustion furnace 10 includes a foldable base 11 and a surrounding 12, the surrounding 12 is connected to the foldable base 11 and forms a combustion chamber; the surrounding 12 is provided with a plurality of circulating air holes, and the combustion chamber is communicated with the first air outlet 20a and the circulating air holes. By arranging a plurality of circulating air holes on the surrounding 12, the oxygen supply and exhaust of waste gas are facilitated, and the combustion efficiency is improved. At the same time, the design of the foldable base 11 makes the combustion furnace 10 more convenient to carry and store, improving the practicability.
[0036] Further, the surrounding 12 includes a plurality of arc-shaped surrounding pieces, and any two adjacent arc-shaped surrounding pieces are detachably connected. The two arc-shaped surrounding pieces can be connected by bolts, hinges or the like. In this way, if a certain arc-shaped surrounding piece is damaged or worn out, it can be replaced individually without replacing the entire surrounding 12, which not only reduces the maintenance cost but also prolongs the service life of the surrounding 12. At the same time, the detachable arc-shaped surrounding pieces can be easily folded and stored, occupying less space and being convenient to carry and transport.
[0037] In an embodiment of the utility model, the fence 12 includes the fence board 121 and the inner net 122, the fence board 121 is equipped with circulation air hole, the inner net 122 is attached to the inner wall of fence board 121, specifically, the inner wall of fence board 121 can be provided with the clamping groove structure, the inner net 122 is clamped in the clamping groove structure, alternatively, by welding to make the inner net 122 and the fence board 121 are integral structure, to guarantee the stability of inner net 122, by setting up the inner net 122 can effectively filter out dust, impurity etc. in air, prevent these impurities from entering the combustion cavity inside, destroy the airflow circulation, cause the flame to be fierce, simultaneously, the inner net 122 can absorb the noise generated when part of airflow passes, reduce the noise level.
[0038] In an embodiment, the fence 12 is detachably connected to the foldable base 11 by screwing, clamping or the like, so that in different outdoor environments, the user can choose whether to use the fence 12 according to needs, for example, in an environment with small wind, disassembling the fence 12 can improve the ventilation of the combustion stove 10, so that the combustion is more sufficient; in an environment with strong wind, installing the fence 12 can prevent strong wind from interfering with the combustion process.
[0039] In another embodiment, the fence 12 is welded to the foldable base 11, and the fence 12 is fixedly connected to the foldable base 11 by welding, which can significantly enhance the overall structural stability of the combustion stove 10.
[0040] In an embodiment of the utility model, the assembled wood-burning stove further comprises a folding table 30, and the assembled wood-burning stove has a first use state, in which the folding table 30 is arranged on the stove mouth of the combustion stove 10, specifically, a receiving protrusion can be arranged on the inner wall of the combustion stove 10 near the stove mouth, or a protrusion is arranged along the inner peripheral wall, and the folding table 30 in the folded state can be placed flat on the stove mouth, at this time, the assembled wood-burning stove has the function of a table, or the cross-sectional dimension of the folding table 30 is greater than the size of the stove mouth, so that the folding table 30 in the folded state can also be placed flat on the stove mouth to realize the function of a table.
[0041] Further, the assembled wood-burning stove further comprises a fire pan 40, and the assembled wood-burning stove has a second use state, in which the fire pan 40 is arranged on the stove mouth of the combustion stove 10, at this time, the folding table 30 is in an unfolded state and can be used independently, so that the combustion stove 10 and the folding table 30 used independently can meet the simultaneous cooking and eating demand, and the use of the fire pan 40 can prevent the heat from flowing out too fast, at the same time, when the assembled wood-burning stove is in the first use state, the fire pan 40 is arranged inside the combustion stove 10 in a use posture opposite to that in the second use state, that is, the convex surface of the fire pan 40 is arranged downward and the concave surface is arranged upward, so as to avoid the position interference of the fire pan 40 and the folding table 30 in the first use state; wherein the assembled wood-burning stove can be switched between the first use state and the second use state, thereby meeting the multi-scene use demand.
[0042] The above are only preferred embodiments of the present application, and do not limit the patent range of the present application, and any equivalent structural transformation made by using the content of the present application specification and drawings, or directly / indirectly applied in other related technical fields under the utility model concept of the present application are included in the patent protection range of the present application.
Claims
1. A modular wood-burning stove, characterized in that, The assembled wood-burning stove includes a combustion furnace (10) and an airflow regulating component (20). The airflow regulating component (20) is located at the bottom of the combustion furnace (10). The bottom of the combustion furnace (10) is provided with any number of air inlets. The airflow regulating component (20) and the bottom of the combustion furnace (10) enclose an air inlet channel. The regulating component is provided with any number of first air outlets (20a). The air inlet channel connects the air inlets and the first air outlets (20a). The total area of the first air outlets (20a) is greater than the total area of the air inlets.
2. The assembled wood-burning stove as described in claim 1, characterized in that, The airflow regulating component has a first sidewall (201) and a second sidewall (202) disposed opposite to each other, and both the first sidewall (201) and the second sidewall (202) are provided with the first air outlet (20a).
3. The assembled wood-burning stove as described in claim 2, characterized in that, Each of the first air outlets (20a) of the first sidewall (201) is provided with a corresponding first air outlet (20a) of the second sidewall (202).
4. The assembled wood-burning stove as described in claim 3, characterized in that, The airflow regulator (20) is fixedly connected to the combustion furnace (10) and covers the air inlet.
5. The assembled wood-burning stove as described in any one of claims 1 to 4, characterized in that, The combustion furnace (10) includes a foldable base (11) and a enclosure (12). The enclosure (12) is connected to the foldable base (11) and encloses to form a combustion chamber. The enclosure (12) is provided with a plurality of circulating air holes. The combustion chamber is connected to the first air outlet (20a) and the circulating air holes.
6. The assembled wood-burning stove as described in claim 5, characterized in that, The enclosure (12) includes multiple arc-shaped panels, and any two adjacent arc-shaped panels can be detachably connected.
7. The assembled wood-burning stove as described in claim 5, characterized in that, The enclosure (12) includes a enclosure panel (121) and an inner net (122). The enclosure panel (121) is provided with the circulating air holes, and the inner net (122) is attached to the inner wall of the enclosure panel (121).
8. The assembled wood-burning stove as described in claim 5, characterized in that, The enclosure (12) is detachably connected to the foldable base (11); or, The enclosure (12) is welded to the foldable base (11).
9. The assembled wood-burning stove as described in claim 1, characterized in that, The assembled wood-burning stove also includes a folding table (30). The assembled wood-burning stove has a first use state in which the folding table (30) can be placed at the opening of the combustion furnace (10).
10. The assembled wood-burning stove as described in claim 9, characterized in that, The assembled wood-burning stove also includes a fire basin (40). The assembled wood-burning stove has a second use state. In the second use state, the fire basin (40) is placed over the opening of the combustion furnace (10). In the first use state, the fire basin (40) is located inside the combustion furnace (10). The assembled wood-burning stove can switch back and forth between the first use state and the second use state.