Firewood stove with refractory material not easy to fall off

By using a metal mesh to fix the refractory material layer in a wood-fired stove, the problem of refractory material easily falling off is solved, resulting in a more stable and durable wood-fired stove design that improves combustion efficiency and safety.

CN224498540UActive Publication Date: 2026-07-14吕杰挺

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
吕杰挺
Filing Date
2025-04-08
Publication Date
2026-07-14

AI Technical Summary

Technical Problem

The refractory material layer of existing wood-fired stoves is prone to peeling off, affecting their stability and safety during use.

Method used

Metal mesh is used to fix the refractory material layer, forming a stable base. The mesh structure of the metal mesh enhances adhesion and prevents the refractory material from falling off at high temperatures.

Benefits of technology

It improves the stability and service life of the refractory material layer, reduces the risk of detachment, enhances the overall stability and durability of the stove body, and ensures safe and efficient combustion.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN224498540U_ABST
    Figure CN224498540U_ABST
Patent Text Reader

Abstract

The utility model belongs to the technical field of firewood stove, concretely relates to a firewood stove with refractory material not easy to fall off. The utility model provides a firewood stove with refractory material not easy to fall off, aims at solving the problem that the refractory material layer of the firewood stove is easy to fall off in the prior art. A firewood stove with refractory material not easy to fall off, including stove body, be provided with combustion chamber on the stove body, be provided with refractory layer in the combustion chamber, the refractory layer surrounds the combustion chamber setting, the refractory layer includes the metal net of being fixed on the stove body and the refractory material layer of being fixed on the metal net. The utility model sets up the refractory material layer on the metal net, and the metal net is fixed on the stove body, forms a stable base. The refractory material layer is fixed on the metal net, and the grid structure of the metal net can increase the adhesion between the refractory material layer and the stove body, prevents the refractory material layer from falling off when swelling under heat or shrinking under cold.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This utility model belongs to the field of wood-fired stove technology, specifically relating to a wood-fired stove with refractory material that is not easily detached. Background Technology

[0002] A wood-fired stove is a type of stove that uses firewood, sawdust, shavings, weeds, corn cobs, straw, and other plant materials as fuel, and is mainly used by rural users.

[0003] In existing wood-fired stoves, the combustion of fuel generates high temperatures during operation. To reduce heat loss, a refractory layer is typically installed inside the combustion chamber. However, in existing technology, the refractory layer is installed by placing a support plate inside the combustion chamber and then fixing the refractory material layer onto the support plate. Because the surface of the support plate is relatively smooth, the refractory material layer fixed to the support plate is prone to detachment. Utility Model Content

[0004] This invention provides a wood-fired stove with refractory material that is not easily detached, aiming to solve the problem of easy detachment of the refractory material layer in existing wood-fired stoves.

[0005] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows:

[0006] A wood-fired stove with refractory material that is not easily detached includes a stove body, a combustion chamber on the stove body, a refractory layer inside the combustion chamber, and the refractory layer surrounding the combustion chamber;

[0007] The refractory layer includes a metal mesh fixed to the stove body and a refractory material layer fixed to the metal mesh.

[0008] A further improved solution: The stove body is also provided with a fuel inlet, and the stove body is provided with a fuel dispensing door to close the fuel inlet. The refractory layer is provided with a through hole, and the fuel in the fuel inlet enters the combustion chamber through the through hole.

[0009] Based on the above technical solution: the fuel inlet design allows users to quickly and conveniently add fuel to the combustion chamber without interfering with the combustion process. This greatly simplifies the fuel replenishment process and improves cooking or heating efficiency. The fuel dispensing door design ensures that it remains closed when not in use, preventing excessive airflow from affecting combustion efficiency and also preventing external debris from entering the combustion chamber. Fuel entering the combustion chamber through the through-hole can mix more thoroughly with air, achieving more complete combustion. This helps reduce unburned fuel residue and improves overall combustion efficiency.

[0010] A further improved solution: The stove body is also provided with an ash outlet, and the stove body is also provided with an ash outlet door to close the ash outlet. The stove body is provided with an ash accumulation chamber that communicates with the ash outlet. The ash accumulation chamber is located below the combustion chamber and communicates with the combustion chamber.

[0011] Based on the above technical solution: the ash collection chamber is located below and connected to the combustion chamber, collecting the ash produced during combustion. When the ash accumulates to a certain level, the user can easily discharge it through the ash outlet by opening the ash door, eliminating the need to enter the stove body for cleaning and greatly simplifying the cleaning process. Regularly cleaning the ash keeps the combustion chamber clear, ensuring smooth airflow and promoting complete combustion of firewood. This not only improves combustion efficiency but also reduces fuel waste. The design of the ash collection chamber and ash outlet makes ash removal simple and quick, reducing potential safety hazards caused by prolonged ash accumulation. For example, excessive ash can lead to incomplete combustion, producing harmful gases such as carbon monoxide and increasing the risk of poisoning. Furthermore, timely ash removal can prevent overheating inside the stove body, reducing the likelihood of a fire.

[0012] A further improved solution: The stove body is also equipped with a water tap, the ash outlet door, the fuel inlet door, and the water tap are located on the same side of the stove body, and both the fuel inlet door and the ash outlet door are equipped with handles.

[0013] Based on the above technical solution, the ash outlet, fuel dispensing door, and water tap are concentrated on the same side of the stove body. This allows users to complete fuel addition, ash removal, and water usage within a relatively centralized area, eliminating the need for frequent relocation and greatly improving operational convenience. The handle design makes the ash outlet and fuel dispensing door easier to identify and open, allowing users to quickly locate and operate these components even in low light or emergency situations. This design also makes the overall layout of the stove body more compact, effectively utilizing limited space.

[0014] A further improved solution: A filter screen is provided between the ash collection chamber and the combustion chamber to prevent unburned fuel in the combustion chamber from falling into the ash collection chamber, and the combustion chamber and the ash collection chamber are connected through the filter screen.

[0015] Based on the above technical solution, the filter effectively intercepts unburned fuel, such as firewood fragments or small pieces of fuel, falling from the combustion chamber. This fuel can be reused in subsequent combustion processes, thereby improving the overall combustion efficiency. By preventing unburned fuel from falling directly into the ash chamber, this design reduces fuel waste. This helps users use fuel more economically, reducing cooking or heating costs. If unburned fuel falls directly into the ash chamber, it may mix with ash, increasing the difficulty and complexity of cleaning. The filter design effectively avoids this problem, making the ash in the ash chamber purer and easier to clean.

[0016] A further improvement: The stove body is also equipped with a chimney for discharging the flue gas from the combustion chamber, and the chimney is connected to the combustion chamber.

[0017] Based on the above technical solution, the main function of a chimney is to exhaust the flue gas produced in the combustion chamber outdoors, thereby effectively reducing the accumulation of indoor smoke and harmful gases. This is crucial for protecting the respiratory health of family members, especially during prolonged cooking or heating. The exhaust function of the chimney also enhances indoor-outdoor air circulation and improves ventilation efficiency. This helps maintain fresh and comfortable indoor air.

[0018] A further improvement: The stove body is also equipped with wheels, which are fixed to the stove body by wheel seats. There are four wheels, which are respectively located at the four corners of the stove body.

[0019] Based on the above technical solution, four wheels are positioned at the four corners of the stove body, allowing the entire stove to move smoothly and easily. Users can move the stove to different locations as needed, such as different cooking areas in the kitchen or outdoor campsites. The wheel design enables the stove to adapt to different terrains and ground conditions. Whether on smooth tile floors or uneven grass or sand, users can easily move the stove. When not in use, the stove can be moved to a corner or storage area, saving space in the kitchen or campsite. The wheel design also allows users to flexibly adjust the stove's layout according to actual needs. For example, during cooking, users can move the stove to the most convenient position based on the preparation of ingredients and the cooking sequence.

[0020] A further improved solution: The stove body is also provided with a folding plate, which has a folded state and an unfolded state. When the folding plate is in the folded state, it is perpendicular to the upper surface of the stove body. When the folding plate is in the unfolded state, its upper surface is flush with the upper surface of the stove body. A locking mechanism is also provided between the stove body and the folding plate to keep the folding plate in the unfolded state.

[0021] Based on the above technical solution: when the folding panel is in the unfolded state, its upper surface is flush with the upper surface of the stove body, thus providing the user with an additional work surface. This is very practical for users who need to place ingredients, seasonings, or cooking tools during cooking, effectively increasing the workspace in the kitchen or campsite. When the folding panel is in the folded state, it is perpendicular to the upper surface of the stove body, thus greatly saving storage space. This is especially important for homes with limited space or outdoor environments, allowing the stove body to be stored more compactly when not in use.

[0022] A further improved solution: The side of the folding plate closest to the stove body is rotatably connected to the stove body via a hinge.

[0023] Based on the above technical solution: by using hinges to rotately connect the folding panel to the cooktop, it is ensured that the folding panel remains stable during unfolding or folding, preventing wobbling or detachment. The hinge design allows the folding panel to easily switch between unfolded and folded states. Users can simply push or pull the folding panel to change its state. This flexibility not only improves cooking efficiency but also allows the cooktop to be quickly converted between use and storage, adapting to different space requirements.

[0024] A further improved solution: The locking mechanism includes a support rod rotatably connected to the stove body, the lower end of the support rod being rotatably connected to the stove body, and a positioning groove for positioning the upper end of the support rod on the folding plate. The support rod cooperates with the positioning groove to keep the folding plate in the unfolded state.

[0025] Based on the above technical solution: the lower end of the support rod is rotatably connected to the stove body, while the upper end is connected to the folding plate via a positioning groove. When the folding plate is in the unfolded state, the support rod provides stable support, preventing it from suddenly folding due to gravity or external forces. This design ensures the stability of the folding plate during cooking and improves safety. Users can easily lock the folding plate in the unfolded state by simply inserting the upper end of the support rod into the positioning groove on the folding plate. Similarly, when it is necessary to fold the folding plate, the user only needs to pull the support rod out of the positioning groove. This locking and unlocking operation is simple and quick, requiring no additional tools or complicated steps, greatly improving ease of use.

[0026] The beneficial effects of this utility model are as follows:

[0027] This invention creates a stable base by placing a refractory material layer on a metal mesh, which is then fixed to the stove body. The mesh structure of the metal mesh increases the adhesion between the refractory material layer and the stove body, preventing the refractory material layer from detaching due to thermal expansion or contraction. The combination of the metal mesh and the refractory material layer forms a unified structure, enhancing the overall stability and durability of the stove body. Even under prolonged high-temperature use, the refractory material layer maintains a tight bond with the metal mesh and the stove body, preventing loosening or detachment.

[0028] Metal mesh itself possesses a certain degree of toughness and strength, enabling it to withstand certain external impacts and compressions. When the stove body is subjected to external forces, the metal mesh can absorb and disperse some of the impact force, protecting the refractory material layer from damage. The mesh structure of the metal mesh increases the overall toughness of the refractory layer and reduces stress concentration caused by temperature changes. This helps prevent the refractory layer from cracking or breaking during heating, extending its service life. Attached Figure Description

[0029] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For users of ordinary skills in the art, other related drawings can be obtained from these drawings without creative effort.

[0030] Figure 1 This is a front view of a firewood stove made of refractory material that is not easily detached according to this utility model.

[0031] Figure 2 This is a left view of a firewood stove made of refractory material that is not easily detached according to this utility model.

[0032] Figure 3 This is a top view of a firewood stove made of refractory material that is not easily detached, according to this utility model.

[0033] Figure 4 This is a schematic diagram of a firewood stove with refractory material that is not easily detached, according to this utility model.

[0034] Explanation of the labels in the diagram:

[0035] 1-Stove body; 2-Metal mesh; 3-Fuel inlet door; 4-Through hole; 5-Ash outlet door; 6-Water tap; 7-Filter screen; 8-Chimney; 9-Wheels; 10-Folding plate; 11-Locking mechanism. Detailed Implementation

[0036] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. It should be understood that the specific embodiments described herein are merely for explaining the present utility model and are not intended to limit the present utility model. All other embodiments obtained by users of the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0037] refer to Figures 1 to 4 A firewood stove with refractory material that is not easy to fall off includes a stove body 1, a combustion chamber is provided on the stove body 1, a refractory layer is provided inside the combustion chamber, and the refractory layer is arranged around the combustion chamber;

[0038] The refractory layer includes a metal mesh 2 fixed to the stove body 1 and a refractory material layer fixed to the metal mesh 2.

[0039] Specifically, the refractory material layer can be a refractory cement or similar material, which can be applied to the metal mesh 2 and cured to form a refractory material layer.

[0040] The stove body 1 is equipped with a fuel inlet and a fuel dispensing door 3 for closing the fuel inlet. A through-hole 4 is provided on the refractory layer, through which fuel from the fuel inlet enters the combustion chamber. The stove body 1 also has an ash outlet and an ash discharge door 5 for closing the ash outlet. An ash collection chamber communicating with the ash outlet is located inside the stove body 1, below the combustion chamber, and is in communication with the combustion chamber. Both the ash discharge door 5 and the fuel dispensing door 3 can be hinged to the stove body 1.

[0041] The stove body 1 is equipped with a water tap 6. The ash outlet 5, the fuel inlet 3, and the water tap 6 are located on the same side of the stove body 1. Both the fuel inlet 3 and the ash outlet 5 are equipped with handles. A hot water tank can be installed on the stove body 1, and the combustion chamber heats the water in the hot water tank. The water tap 6 can be connected to the hot water tank, and hot water can be dispensed by opening the water tap 6. Alternatively, a water tank can be installed inside the stove body 1. In this case, the water tank is not heated by the combustion chamber, and the water dispensed from the water tap 6 is cold water.

[0042] The ash collection chamber and the combustion chamber are connected by a filter screen 7 to prevent unburned fuel from falling into the ash collection chamber. The filter screen 7 can be made of metal and can be placed directly on the stove body 1. Alternatively, the filter screen 7 can be clipped onto the stove body 1.

[0043] Specifically, the stove body 1 is also equipped with a chimney 8 for discharging flue gas from the combustion chamber, and the chimney 8 is connected to the combustion chamber. An isolation net can be installed on the outside of the chimney 8 to prevent users from directly touching the chimney 8.

[0044] The stove body 1 is also equipped with four wheels 9, which are fixed to the stove body 1 by wheel seats. Each wheel 9 is located at one of the four corners of the stove body 1. All four wheels 9 can be fixed to the four corners of the stove body 1 with screws. The wheels 9 can be omnidirectional wheels and may also have a braking function.

[0045] Specifically: The stove body 1 is also provided with a folding plate 10, which has a folded state and an unfolded state. When the folding plate 10 is in the folded state, it is perpendicular to the upper surface of the stove body 1. When the folding plate 10 is in the unfolded state, its upper surface is flush with the upper surface of the stove body 1. A locking mechanism 11 is also provided between the stove body 1 and the folding plate 10 to keep the folding plate 10 in the unfolded state. The side of the folding plate 10 closest to the stove body 1 is rotatably connected to the stove body 1 via a hinge. The locking mechanism 11 includes a support rod rotatably connected to the stove body 1, with its lower end rotatably connected to the stove body 1. The folding plate 10 is also provided with a positioning groove for positioning the upper end of the support rod. The support rod cooperates with the positioning groove to keep the folding plate 10 in the unfolded state. When the support rod supports the folding plate 10, the angle between the support rod and the side wall of the stove body 1 can be 45 degrees. The locking mechanism 11 can also use other structures to lock the folding plate 10 in the unfolded state. For example, a pin structure can be used to directly lock the folding plate 10 in the unfolded state.

[0046] The working principle of this embodiment:

[0047] Place the wood-burning stove in the desired location. Open the fuel inlet door 3 by the handle and add firewood or other fuel into the combustion chamber through the fuel inlet. Ensure the fuel enters the combustion chamber smoothly through the through-holes 4 in the refractory layer. Use a match or lighter to ignite the fuel in the combustion chamber to start cooking.

[0048] If additional operating space is needed, the folding plate 10 can be unfolded and secured using the locking mechanism 11. The upper surface of the folding plate 10 is flush with the upper surface of the stove body 1, providing a stable support platform.

[0049] After cooking, open the ash outlet 5 to clean the ash from the ash collection chamber. The filter 7 will trap unburned fuel fragments, preventing them from falling into the ash collection chamber. If no further operating space is needed, the folding panel 10 can be folded up to save space.

[0050] This utility model is not limited to the above-mentioned optional embodiments. Under the premise of non-contradiction, the various solutions can be combined arbitrarily. Anyone can derive other forms of products under the guidance of this utility model. However, no matter what changes are made in their shape or structure, all technical solutions that fall within the scope of the claims of this utility model are within the protection scope of this utility model.

Claims

1. A wood-burning stove with refractory material that does not easily detach, characterized in that: The stove body includes a combustion chamber, a fire-resistant layer is provided inside the combustion chamber, and the fire-resistant layer surrounds the combustion chamber. The refractory layer includes a metal mesh fixed to the stove body and a refractory material layer fixed to the metal mesh.

2. A wood-burning stove with refractory material that is not easily detached according to claim 1, characterized in that: The stove body is also provided with a fuel inlet and a fuel dispensing door that closes the fuel inlet. The refractory layer is provided with a through hole, through which fuel in the fuel inlet enters the combustion chamber.

3. A wood-burning stove with refractory material that is not easily detached according to claim 2, characterized in that: The stove body is also provided with an ash outlet and an ash door for closing the ash outlet. The stove body is provided with an ash collection chamber that communicates with the ash outlet. The ash collection chamber is located below the combustion chamber and communicates with the combustion chamber.

4. A wood-burning stove with refractory material that is not easily detached according to claim 3, characterized in that: The stove body is also equipped with a water tap. The ash outlet, the fuel inlet, and the water tap are located on the same side of the stove body. Both the fuel inlet and the ash outlet are equipped with handles.

5. A wood-burning stove with refractory material that is not easily detached according to claim 4, characterized in that: A filter screen is provided between the ash collection chamber and the combustion chamber to prevent unburned fuel in the combustion chamber from falling into the ash collection chamber, and the combustion chamber and the ash collection chamber are connected through the filter screen.

6. A wood-burning stove with refractory material that is not easily detached according to any one of claims 1 to 5, characterized in that: The stove body is also equipped with a chimney for discharging the flue gas from the combustion chamber, and the chimney is connected to the combustion chamber.

7. A wood-burning stove with refractory material that is not easily detached according to claim 6, characterized in that: The stove body is also equipped with wheels, which are fixed to the stove body by wheel seats. There are four wheels, which are respectively located at the four corners of the stove body.

8. A wood-burning stove with refractory material that is not easily detached according to claim 7, characterized in that: The stove body is also provided with a folding plate, which has a folded state and an unfolded state. When the folding plate is in the folded state, it is perpendicular to the upper surface of the stove body. When the folding plate is in the unfolded state, its upper surface is flush with the upper surface of the stove body. A locking mechanism is also provided between the stove body and the folding plate to keep the folding plate in the unfolded state.

9. A wood-burning stove with refractory material that is not easily detached according to claim 8, characterized in that: The folding plate is rotatably connected to the stove body via a hinge on the side closest to the stove body.

10. A wood-burning stove with refractory material that is not easily detached according to claim 9, characterized in that: The locking mechanism includes a support rod rotatably connected to the stove body, the lower end of the support rod being rotatably connected to the stove body, and a positioning groove for positioning the upper end of the support rod on the folding plate. The support rod cooperates with the positioning groove to keep the folding plate in the unfolded state.