A high safety portable cassette stove
Patent Information
- Application Number
- CN202522521428.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-11-27
- Publication Date
- 2026-10-23
- Estimated Expiration
- 2035-11-27
AI Technical Summary
[0003]目前市面上现有的卡式炉大多是整体的一体式结构,水盘、锅架(炉耳)和底托等大多一体成型,并且大都是燃烧火位比气瓶室低,会造成用户使用大面积烹锅时,将热量传递到气瓶室,使气瓶表面温度非常高,温度变高使气瓶内的压力增加,超过气瓶所承受压力后会产生气瓶爆炸,甚至于安全性无法得到保证
[0018]本实用新型在使用时,该高安全性的便携式卡式炉,通过抬高炉头的燃烧位置、增加物理隔热层、优化水盘结构,从根源上切断了热量向气瓶传递的主要路径,确保气瓶始终处于安全温度范围内,从根本上杜绝了因过热引发的爆炸风险。同时,采用了“水盘隔热+内腔挡板隔热+气瓶盖隔热”的立体式、多层次隔热体系。热量在传递过程中被层层削弱和阻隔,隔热效果远超单一设计的传统产品,为气瓶提供了全方位的保护,提高卡式炉使用的安全性。
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Figure CN224887124U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of portable cartridge stove technology, and in particular to a highly safe portable cartridge stove. Background Technology
[0002] A portable butane gas stove, also known as a cassette stove, is a non-fixed cooking appliance that uses butane gas as its primary fuel, but liquefied petroleum gas (LPG) can also be used. It is commonly used for heating cookware mounted on a pot holder above the stove during everyday cooking and is frequently used in homes, outdoor recreation areas, and hotels. For example, a cassette stove can be used with frying pans, grills, and other cooking utensils, and can be used for various cooking methods such as boiling water, stir-frying, hot pot, and frying.
[0003] Most portable gas stoves currently on the market are one-piece structures, with the water tray, pot rack (ears), and base mostly molded as a single piece. Moreover, the flame position is usually lower than the gas cylinder chamber. This causes heat to be transferred to the gas cylinder chamber when cooking over a large area, resulting in extremely high surface temperatures on the gas cylinder. The increased temperature leads to increased pressure inside the gas cylinder, which can cause the gas cylinder to explode if it exceeds its pressure limit, and even compromise its safety.
[0004] Therefore, this utility model proposes a highly safe portable cartridge stove. Utility Model Content
[0005] The purpose of this invention is to overcome the shortcomings of keyed connections in heavy-duty applications and to provide a highly safe portable cassette stove.
[0006] To achieve the above objectives, the present invention adopts the following technical solution: a highly safe portable cartridge stove, comprising a stove body, a stove head fixedly installed inside the stove body, a gas cylinder chamber provided at one end of the stove body, and a heat insulation baffle fixedly connected to the inner side of the stove body at a position between the stove head and the gas cylinder chamber;
[0007] The gas cylinder chamber contains gas cylinders, and a heat insulation box is installed between the gas cylinders and the heat insulation baffle.
[0008] Furthermore, the heat insulation box is fixedly connected to the inner wall of the gas cylinder chamber, and the heat insulation box has a hollow box-shaped structure.
[0009] Furthermore, a water tray is snapped onto the top of the furnace body, and the water tray adopts a height-increasing, multi-layered bending design.
[0010] Furthermore, a gas cylinder cover plate is fixedly connected to the top side wall of the furnace body near the gas cylinder chamber, and the gas cylinder cover plate adopts a multi-layer structure.
[0011] Through the above technical solution, the multi-layer structure of the gas cylinder cover can block the heat of combustion and reduce the heat transferred downward to the gas cylinder chamber, thereby preventing the gas cylinder from overheating.
[0012] Furthermore, the outer surface sidewall of the furnace body near the gas cylinder chamber has multiple heat dissipation holes.
[0013] Through the above technical solution, the presence of heat dissipation holes can enhance the ventilation and heat dissipation effect between the gas cylinder and the outside, and reduce the temperature of the gas cylinder.
[0014] Furthermore, multiple furnace ears are fixedly connected to the upper surface of the water pan.
[0015] With the above technical solution, the top of the stove handle can be used to place cooking pots, and the concave shape of the stove handle itself can limit the sliding effect of the pots.
[0016] Furthermore, furnace feet are fixedly connected to all four sides of the lower surface of the furnace body.
[0017] This utility model has the following beneficial effects:
[0018] In use, this highly safe portable portable gas stove, by raising the combustion position of the burner head, adding a physical insulation layer, and optimizing the water tray structure, fundamentally cuts off the main path of heat transfer to the gas cylinder, ensuring that the gas cylinder is always within a safe temperature range and eliminating the risk of explosion due to overheating. Simultaneously, it employs a three-dimensional, multi-layered insulation system consisting of "water tray insulation + inner cavity baffle insulation + gas cylinder cap insulation." Heat is weakened and blocked layer by layer during transfer, resulting in an insulation effect far exceeding that of traditional single-design products, providing comprehensive protection for the gas cylinder and improving the safety of using the portable gas stove. Attached Figure Description
[0019] Figure 1 This is a first-view perspective perspective view of the present invention;
[0020] Figure 2 This is a second-view perspective perspective view of the present invention;
[0021] Figure 3 This is a frontal cross-sectional view of the present invention.
[0022] Legend:
[0023] 1. Furnace body; 2. Furnace feet; 3. Water tray; 4. Furnace head; 5. Gas cylinder chamber; 6. Gas cylinder; 7. Heat insulation baffle; 8. Heat insulation box; 9. Gas cylinder cover; 10. Heat dissipation hole; 11. Furnace ear. Detailed Implementation
[0024] Figures 1 to 3As shown, a high-safety portable cartridge stove is disclosed, comprising a stove body 1. Stove feet 2 are fixedly connected to all four sides of the lower surface of the stove body 1, serving to separate the stove body 1 from the mounting surface. A burner head 4 is fixedly installed inside the stove body 1. A gas cylinder chamber 5 is located at one end of the stove body 1, and a gas cylinder 6 is placed inside the gas cylinder chamber 5. The combustion flame of the burner head 4 is designed to be higher than that of the gas cylinder chamber 5, based on the principle of natural hot air rising. The high-temperature combustion products and hot air will naturally diffuse upwards and outwards, greatly reducing heat convection downwards into the gas cylinder chamber, thus reducing the risk of the gas cylinder overheating from a macroscopic design perspective.
[0025] A heat insulation baffle 7 is fixedly connected to the inner side of the furnace body 1, located between the furnace head 4 and the gas cylinder chamber 5. A heat insulation box 8 is provided between the gas cylinder 6 and the heat insulation baffle 7. The presence of the heat insulation baffle 7 and the heat insulation box 8 are both physical heat insulation methods to prevent heat from spreading to the gas cylinder 6.
[0026] Specifically, the heat insulation box 8 is fixedly connected to the inner wall of the gas cylinder chamber 5, and the heat insulation box 8 has a hollow box-shaped structure. Air is a poor conductor of heat. Since air has a relatively low thermal conductivity, it means that its ability to transfer heat is poor. The presence of the hollow heat insulation box 8 further blocks the heat at the burner head 4, reducing the heating effect of the gas cylinder 6.
[0027] A water tray 3 is attached to the top of the furnace body 1, and multiple furnace ears 11 are fixedly connected to the upper surface of the water tray 3. The upper part of the furnace ears 11 is used to place cooking pots. The water tray 3 not only has the function of receiving liquid, but also adopts a height-increasing multi-layer bending design. The water tray is the one that is in contact with the burner of the stove head and is heated the fastest. When the water tray 3 is heightened and has a multi-layer bending design, heat transfer can be effectively reduced.
[0028] The bottom side wall of the water pan 3 should be equipped with a locking mechanism to reliably and stably hold the water pan on top of the furnace body 1, effectively fixing the position of the water pan 3 and preventing it from shifting.
[0029] A gas cylinder cover plate 9 is fixedly connected to the top side wall of the furnace body 1 near the gas cylinder chamber 5. The gas cylinder cover plate 9 adopts a multi-layer structure. The presence of the gas cylinder cover plate 9 can block external heat and reduce the heat transfer from the top to the bottom of the gas cylinder 6 through the side wall of the furnace body 1.
[0030] The outer surface of the furnace body 1 near the gas cylinder chamber 5 has multiple heat dissipation holes 10. The heat dissipation holes 10 are used to dissipate heat from the gas cylinder, reduce the temperature of the gas cylinder, and prevent it from getting too hot.
[0031] In practical use of high-safety portable gas stoves, traditional gas stoves, because the flame is lower than the gas cylinder chamber, allow heat to easily transfer to the cylinder, causing a surge in internal pressure and posing a serious safety threat. Furthermore, heat from traditional gas stoves easily reaches the gas cylinder chamber through three mechanisms: heat conduction (along the stove's metal body), heat convection (hot air flowing downwards), and heat radiation (direct radiation). This design incorporates multiple barriers to address these three mechanisms:
[0032] First, the water pan 3 is the first barrier for heat transfer from the burner head 4 downwards. Its "heightened multi-layered bending" structure essentially extends the heat conduction path. According to Fourier's law of heat conduction, with the heat-conducting material and cross-sectional area remaining constant, the longer the path, the greater the thermal resistance, and the less heat is transferred. At the same time, the air layer formed by the bending is a poor conductor, effectively utilizing the principle of air insulation.
[0033] Secondly, a heat insulation baffle 7 is installed inside the cavity of the furnace body 1. The function of this baffle is to reflect and block the radiant heat from the burner, and to guide and disrupt the downward flow of hot convective air. It acts like a "shield," reflecting most of the heat back to the cooking area, while forcing the hot air to dissipate to the sides or top of the furnace body, rather than rushing directly towards the gas cylinder chamber 5 at the bottom.
[0034] When the portable gas stove is in operation, the burner head 4 generates a large amount of heat. This heat is first blocked and weakened by the water tray 3; any residual heat penetrating the water tray is reflected and dissipated by the heat insulation baffle 7 inside the stove cavity; and the very little heat that reaches the vicinity of the gas cylinder chamber 5 is isolated by the heat insulation box 8. Through this series of protective measures, the temperature of the gas cylinder is always controlled within a safe range, thus achieving high product safety.
[0035] Because heat is effectively insulated, users can confidently use large frying pans, woks, and other high-temperature cooking methods like stir-frying in Chinese style without worrying about heat "feeding back" to the gas cylinder. This greatly expands the application scenarios of portable gas stoves, from simple boiling water and hot pot to more complex home cooking and outdoor food preparation.
[0036] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model shall be included within the protection scope of the present utility model.
Claims
1. A highly secure portable cartridge stove, comprising a stove body (1), characterized in that, A burner head (4) is fixedly installed inside the furnace body (1). A gas cylinder chamber (5) is provided at one end of the furnace body (1), and the combustion flame of the burner head (4) is higher than that of the gas cylinder chamber (5). A heat insulation baffle (7) is fixedly connected to the inner side of the furnace body (1) and located between the burner head (4) and the gas cylinder chamber (5). The gas cylinder chamber (5) contains a gas cylinder (6), and a heat insulation box (8) is provided between the gas cylinder (6) and the heat insulation baffle (7).
2. The highly secure portable cartridge stove according to claim 1, characterized in that: The heat insulation box (8) is fixedly connected to the inner wall of the gas cylinder chamber (5), and the heat insulation box (8) has a hollow box structure.
3. The highly secure portable cartridge stove according to claim 1, characterized in that: The top of the furnace body (1) is fitted with a water tray (3), and the water tray (3) adopts a height-increasing multi-layer bending design.
4. A highly secure portable cartridge stove according to claim 1, characterized in that: A gas cylinder cover plate (9) is fixedly connected to the top side wall of the furnace body (1) near the gas cylinder chamber (5), and the gas cylinder cover plate (9) adopts a multi-layer structure.
5. A highly secure portable cartridge stove according to claim 1, characterized in that: The furnace body (1) has multiple heat dissipation holes (10) on the outer surface sidewall near the gas cylinder chamber (5).
6. A highly secure portable cartridge stove according to claim 3, characterized in that: Multiple furnace ears (11) are fixedly connected to the upper surface of the water pan (3).
7. A highly secure portable cartridge stove according to claim 1, characterized in that: Furnace feet (2) are fixedly connected to the lower surface of the furnace body (1) around all four sides.