A mineral oil burning cartridge stove

Abstract

The utility model discloses a mineral oil combustion cassette stove, including stove frame, oil box, mounting bracket and furnace core unit, and oil box has the oil cavity, and mounting bracket is located in the oil cavity, and a plurality of furnace core units are fixed on the mounting bracket, and the fire control device includes the elevating support, a plurality of fire screen and drive mechanism, and the elevating support is set in the oil cavity and can lift and move, and a plurality of fire screen are fixed on the elevating support and set respectively around each furnace core unit, and drive mechanism is connected with the elevating support, and drive mechanism includes operating handle, and the utility model discloses through single drive mechanism linkage control all fire screen synchronous lifting, has realized synchronous fire, and the operation is simple, and the air inlet system that combines the limiting pipe and the strip hole constitute and the furnace core of annular layout have guaranteed that the combustion is full, heating is even and the firepower adjusting range is wide, and moreover uses safe and environmental protection, and comprehensively promotes the use experience.

Description

Technical Field

[0001] This utility model belongs to the field of combustion furnace technology, and in particular relates to a mineral oil combustion cassette furnace. Background Technology

[0002] Mineral oil-fired portable gas stoves, as a common type of portable heating appliance, utilize fuels (such as refined kerosene and white oil) that inherently possess significant safety and environmental benefits, making them a preferred choice for outdoor activities and certain civilian applications. Traditional mineral oil-fired stoves typically feature a single burner as their core combustion component, with the heat output controlled by adjusting the fuel valve opening. However, this single-burner structure has limited heat load, making it difficult to meet the demands of cooking activities requiring large-area, high-intensity heating, such as stir-frying.

[0003] To increase power, multi-burner stoves have emerged in existing technologies. However, their fire control methods have significant drawbacks: most require an independent control valve or knob for each burner, resulting in complex structures, high manufacturing costs, and cumbersome operation as users must adjust each burner individually. Furthermore, it is difficult to ensure synchronized flame changes across burners, easily leading to uneven heating of cookware. In addition, some multi-burner stoves employing a linked fire control structure often have complex adjustment mechanisms, exhibiting problems such as asynchronous movement and non-linear adjustment, affecting combustion efficiency and user experience. Utility Model Content

[0004] The purpose of this invention is to provide a mineral oil-fired portable gas stove that can handle both high heat loads and easy operation.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] This utility model provides a mineral oil-fired portable gas stove, including a stove frame, an oil box, a mounting frame, a core unit, and a flame control device. The oil box is disposed on the stove frame and has an oil cavity. The mounting frame is disposed in the oil cavity. Multiple core units are fixed on the mounting frame, and each core unit includes an ignition element for combustion. The flame control device includes a lifting frame, multiple fire shields, and a drive mechanism. The lifting frame is movably and vertically disposed in the oil cavity. The multiple fire shields are fixed on the lifting frame and respectively surround each core unit. The drive mechanism is connected to the lifting frame and is used to drive the lifting frame to move up and down to adjust the flame size by changing the relative height position of the fire shields with respect to the core unit. The drive mechanism includes an operating handle.

[0007] Preferably, a limiting tube is fixed on the mounting bracket, and the furnace core unit is installed inside the limiting tube; the limiting tube has an opening on its side wall; the fire shield is tubular and is sleeved on the outer periphery of the limiting tube, and the fire shield has a vent hole on its side wall.

[0008] Preferably, the vent hole and the opening are positioned opposite each other; the vent hole and the opening are strip-shaped holes arranged in the vertical direction.

[0009] Preferably, the plurality of furnace core units are arranged in a ring-shaped even distribution.

[0010] Preferably, the upper end of the mounting bracket is equipped with a cover plate, and the cover plate is provided with through holes for the fire baffle, the limiting tube and the furnace core unit to pass through.

[0011] Preferably, the driving mechanism includes a connector, a transmission gear, a transmission shaft, and an operating handle; the connector is meshed with the transmission gear for transmission, the transmission gear is fixed on the transmission shaft, and the operating handle is fixed at the end of the transmission shaft. When the transmission shaft rotates, it drives the connector to move up and down through the transmission gear, thereby driving the lifting frame to move up and down.

[0012] Preferably, the connector is a tubular component fixed on the lifting frame, and the side wall of the connector is provided with transmission holes that mesh with the transmission gear at intervals; the upper end of the mounting frame is provided with a positioning seat, and the positioning seat is provided with a limiting sleeve that cooperates with the upper end of the tubular component; the transmission shaft is connected to the positioning seat.

[0013] Preferably, the lower edge of the fire shield is provided with a first rivet piece, the lifting frame is provided with a first positioning hole, and the lower end of the fire shield extends into the first positioning hole and is riveted and fixed by the first rivet piece; or / and, the lower edge of the limiting tube is provided with a second rivet piece, the mounting frame is provided with a second positioning hole, and the lower end of the limiting tube extends into the second positioning hole and is riveted and fixed by the second rivet piece.

[0014] Preferably, the upper end of the furnace frame is provided with a support assembly, the support assembly including a fixed support fixedly connected to the furnace frame and a movable support pivotally connected to the fixed support, the fixed support being fixedly provided with a stop; the movable support is provided with a first stop and a second stop; when the movable support is retracted, the stop abuts against the first stop; when the movable support is extended, the stop abuts against the second stop.

[0015] Preferably, the furnace core unit includes a furnace core tube and an ignition element disposed inside the furnace core tube, and a plurality of air inlets are provided on the side wall of the furnace core tube.

[0016] The positive effects of this utility model are: (1) The mineral oil combustion cassette stove in this utility model has a reasonable structure. When in use, the user operates the drive mechanism through the operating handle, thereby controlling the lifting frame to move up and down. The lifting frame is controlled by the linkage between the single drive mechanism and the operating handle. Only one operation is needed to simultaneously adjust the height of the fire shield outside all the furnace core units. This realizes the unified control of the flame size of the multi-head stove. The operation is simple and solves the tedious problem of traditional multi-head stoves needing to be adjusted one by one.

[0017] (2) The structure of the fire control device in this utility model is optimized, wherein the drive mechanism mainly consists of an operating handle, a transmission shaft, a transmission gear, and a connecting member. The structural relationship is as follows: the operating handle is fixed to the end of the transmission shaft, the transmission gear is fixedly installed on the transmission shaft, and meshes with the connecting member to form a transmission connection; the connecting member is further fixedly connected to the lifting frame. Its beneficial effects are: this mechanism, through the meshing of the transmission gear and the connecting member, forms a gear-rack type transmission pair, accurately converting the rotational motion of the operating handle into the lifting motion of the lifting frame. Users only need to rotate the operating handle to easily and accurately control the fire intensity, making operation intuitive and simple; at the same time, this rigid transmission structure operates smoothly, reliably, and durablely, effectively ensuring the long-term stability of fire intensity adjustment.

[0018] (3) This utility model sets a limiting tube and a tubular fire shield sleeved on its outside, and provides an opening on the side wall of the limiting tube and a ventilation hole on the side wall of the fire shield. The opening and the ventilation hole work together to form an efficient air supply channel, which ensures that the fuel can mix with the air to achieve efficient combustion under different fire levels. Furthermore, the ventilation hole and the opening are positioned opposite each other. The ventilation hole and the opening are strip-shaped holes arranged in the vertical direction. This arrangement ensures that the opening and the ventilation hole can always form an air supply channel when the fire shield moves up and down, thereby ensuring that the fuel can mix with the air to achieve efficient combustion under different fire levels.

[0019] (4) This utility model effectively expands the adaptability range of cookware by setting a support assembly composed of a fixed support and a movable support. The fixed support is equipped with a stop, and the movable support is equipped with a first stop and a second stop. When the movable support is retracted, the stop abuts against the first stop; when the movable support is extended, the stop abuts against the second stop. This limiting structure provides clear and stable mechanical positioning for both the retracted and extended states of the movable support, ensuring structural stability during use. The extended design of the movable support increases the effective support area above the stove, enabling it to stably support both small and large cookware, thus significantly broadening the product's cooking application scenarios and enhancing its practicality. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of this utility model 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 this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This is a perspective view of the mineral oil combustion portable gas stove of this utility model.

[0022] Figure 2 This is a perspective view of the mineral oil combustion portable gas stove (without the stove cover) of this utility model.

[0023] Figure 3 for Figure 1 The image shows a top view of a mineral oil-fired portable gas stove.

[0024] Figure 4 For along Figure 3 A sectional view cut along line AA.

[0025] Figure 5 for Figure 4 Enlarged view at point B in the middle.

[0026] Figure 6 This is a perspective view of the fire control device of this utility model.

[0027] Figure 7 This is an exploded view of the fire control device of this utility model.

[0028] Figure 8 This is an exploded view of the mineral oil combustion portable gas stove of this utility model;

[0029] Figure 9 and Figure 10 These are schematic diagrams of the limiting tube and the fire shield in this utility model.

[0030] Figure 11 This is a structural schematic diagram of the support assembly (movable support in unfolded state) in this utility model.

[0031] The reference numerals in the attached figures are as follows: 1. Furnace frame; 11. Support assembly; 111. Fixed support; 112. Movable support; 113. First baffle; 114. Second baffle; 115. Stop; 2. Oil box; 21. Oil cavity; 3. Mounting bracket; 31. Limiting tube; 311. Opening; 312. Second riveting piece; 32. Cover plate; 321. Through hole; 33. Second positioning hole; 4. Furnace core unit; 41. Furnace core tube; 42. Air inlet; 5. Flame control device; 51. Lifting frame; 511. First positioning hole; 52. Flame shield; 521. Vent hole; 522. First riveting piece; 53. Drive mechanism; 531. Operating handle; 532. Connector; 5321. Transmission hole; 533. Transmission gear; 534. Transmission shaft; 54. Positioning seat; 541. Limiting sleeve; 6. Furnace cover. Detailed Implementation

[0032] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0033] Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0034] In this embodiment of the utility model, the structure of the mineral oil combustion portable stove is as follows: Figures 1 to 10As shown, it includes a furnace frame 1, an oil box 2, a mounting bracket 3, furnace core units 4, a flame control device 5, and a furnace cover 6. The oil box 2 is mounted on the furnace frame 1 and has an oil cavity 21. The mounting bracket 3 is located inside the oil cavity 21. Multiple furnace core units 4 are fixed to the mounting bracket 3, and each furnace core unit 4 includes an ignition element for combustion (such as a cotton wick, not shown in the figure). The flame control device 5 includes a lifting frame 51, multiple fire shields 52, and a drive mechanism 53. The lifting frame 51 is movably and vertically arranged inside the oil cavity 21. The multiple fire shields 52 are fixed to the lifting frame 51 and are respectively arranged around each furnace core unit 4. The drive mechanism 53 is connected to the lifting frame. A drive mechanism 51 is connected to drive the lifting frame 51 to rise and fall, thereby adjusting the flame size by changing its relative height position with respect to the furnace core unit 4 via the fire baffle 52. The drive mechanism 53 includes an operating handle 531. During use, the user operates the drive mechanism 53 via the operating handle 531, thus controlling the lifting frame 51 to rise and fall. By linking the lifting frame 51 with a single drive mechanism 53, the user can simultaneously adjust the height position of the fire baffles 52 outside all furnace core units 4 with a single operation. This achieves unified control of the flame size of multi-burner stoves, simplifying operation and solving the cumbersome problem of adjusting each fire baffle individually in traditional multi-burner stoves. The added furnace cover 6 can close the furnace head area when not in use, effectively preventing dust and debris from falling in, maintaining internal cleanliness, and improving safety during storage and transportation.

[0035] In use, mineral oil is injected into the oil chamber 21 of the oil box 2. The igniter absorbs fuel from the oil chamber 21 to its top through capillary action, igniting the igniter and starting continuous combustion in the furnace core unit 4. When it is necessary to adjust the firepower, the user operates the operating handle 531 of the drive mechanism 53. This operation drives the lifting frame 51 to move up and down through the drive mechanism 53. Since all the fire shields 52 are fixed on the same lifting frame 51, they rise or fall synchronously. The rise and fall of the fire shields 52 changes the relative position of their tops and the root of the flame in the furnace core unit 4, thereby achieving flame size adjustment.

[0036] See Figure 4 and Figure 5 The mounting bracket 3 is fixed with a limiting tube 31, and the furnace core unit 4 is installed inside the limiting tube 31. The limiting tube 31 can effectively limit the furnace core unit 4. At the same time, the limiting tube 31 has an opening 311 on its side wall. The fire baffle 52 is tubular and is sleeved on the outer periphery of the limiting tube 31. The fire baffle 52 has a vent hole 521 on its side wall. The opening 311 on the side wall of the limiting tube 31 and the vent hole 521 on the side wall of the fire baffle 52 cooperate to form an efficient air supply channel, ensuring that the fuel can mix with air under different fire levels to achieve efficient combustion.

[0037] like Figure 5 and Figure 8 As shown, the vent 521 and the opening 311 are positioned opposite each other; the vent 521 and the opening 311 are strip-shaped holes arranged in the vertical direction; this arrangement ensures that the opening 311 and the vent 521 can always form an air supply channel when the fire shield 52 moves up and down, so as to supply air during combustion.

[0038] Furthermore, the multiple furnace core units 4 are arranged in a ring, and the ring layout of the multiple furnace core units 4 can form a uniform ring heating zone, which is particularly suitable for round-bottomed cookware, avoids local overheating, and results in better cooking.

[0039] See Figure 2 The mounting bracket 3 is equipped with a cover plate 32 at its upper end. The cover plate 32 has a through hole 321 for the fire baffle 52, the limiting tube 31 and the furnace core unit 4 to pass through. The cover plate 32 covers the upper end of the oil cavity 21, which can prevent dust, liquid and other foreign objects from falling into the oil cavity, keep the internal fuel pure and the combustion components clean. At the same time, the cover plate 32 can cover the complex structure inside the oil box 2, making the product appearance simpler and more integrated, and improving the texture and aesthetics of the product.

[0040] In this embodiment, the cover plate 32 is fixedly connected to the mounting frame 3 at intervals by fixing posts. Specifically, the upper end of the fixing post is fixedly connected to the cover plate 32, and the lower end of the fixing post is fixedly connected to the mounting frame 3. In order to improve the stability of the fixation, it is preferable to set multiple fixing posts.

[0041] Continue reading Figure 6 and Figure 7 The drive mechanism 53 includes a connector 532, a transmission gear 533, a transmission shaft 534, and an operating handle 531. The connector 532 is meshed with the transmission gear 533 for transmission. The transmission gear 533 is fixed on the transmission shaft 534, and the operating handle 531 is fixed to the end of the transmission shaft 534. When the transmission shaft 534 rotates, it drives the connector 532 to move up and down through the transmission gear 533, thereby driving the lifting frame 51 to move up and down. The meshing transmission method of the transmission gear 533 and the connector 532 (forming a transmission pair similar to a gear and rack) converts the rotational motion of the operating handle 531 into the linear motion of the lifting frame 51. This transmission method has an accurate transmission ratio, and the user can easily control the firepower by simply rotating the operating handle 531. It is convenient, stable, and reliable.

[0042] Specifically, the connector 532 is a tubular component fixed on the lifting frame 51, and the side wall of the connector 532 is provided with transmission holes 5321 that mesh with the transmission gear 533; the upper end of the mounting frame 3 is provided with a positioning seat 54, and the positioning seat 54 is provided with a limiting sleeve 541 that cooperates with the upper end of the tubular component; the transmission shaft 534 is connected to the positioning seat 54.

[0043] Combination Figure 5 , Figure 9 and Figure 10 As shown, the lower edge of the fire shield 52 is provided with a first rivet piece 522, and the lifting frame 51 is provided with a first positioning hole 511. The lower end of the fire shield 52 extends into the first positioning hole 511 and is riveted and fixed by the first rivet piece 522; or / and, the lower edge of the limiting tube 31 is provided with a second rivet piece 312, and the mounting frame 3 is provided with a second positioning hole 33. The lower end of the limiting tube 31 extends into the second positioning hole 33 and is riveted and fixed by the second rivet piece 312; the riveting and fixing method using the first and second rivet pieces 312 and the first and second positioning holes 33 is simple in structure, has a firm and reliable connection, and can withstand high temperature environment, thus enhancing service life.

[0044] Referring to the attached drawings, the upper end of the furnace frame 1 is provided with a support assembly 11. The support assembly 11 includes a fixed support 111 fixedly connected to the furnace frame 1 and a movable support 112 pivotally connected to the fixed support 111. A stop 115 (such as a pin) is fixed on the fixed support 111. The movable support 112 is provided with a first stop 113 and a second stop 114. When the movable support 112 is retracted, the stop 115 abuts against the first stop 113; when the movable support 112 is extended, the stop 115 abuts against the second stop 114 (see attached drawings). Figure 11 (As shown); the stop 115 set on the fixed support 111 forms abutment with the first stop 113 and the second stop 114 on the movable support 112, respectively, providing clear and stable mechanical limits for the retracted and extended states of the movable support 112; the extended design of the movable support 112 expands the effective support range above the stove, so that the portable stove can not only stably support small pots, but also stably support larger pots, further expanding the pot compatibility, broadening the cooking application scenarios of the product, and enhancing its practicality.

[0045] The furnace core unit 4 includes a furnace core tube 41 and an ignition element. The ignition element is disposed inside the furnace core tube 41. Multiple ventilation holes 521 are provided on the side wall of the furnace core tube 41. Multiple air inlets 42 are provided on the side wall of the furnace core tube 41 of the furnace core unit 4, which increases the amount of air supplied during combustion, promotes the premixing of fuel and air, makes combustion more complete, and increases the flame temperature. At the same time, it helps to reduce the generation of carbon deposits and black smoke, making it more environmentally friendly.

[0046] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the protection scope of the claims.

Claims

1. A mineral oil-fired portable gas stove, characterized in that, The furnace includes a furnace frame (1), an oil box (2), a mounting bracket (3), furnace core units (4), and a flame control device (5). The oil box (2) is mounted on the furnace frame (1) and has an oil cavity (21). The mounting bracket (3) is located inside the oil cavity (21). Multiple furnace core units (4) are fixed on the mounting bracket (3), and each furnace core unit (4) includes an ignition element for combustion. The flame control device (5) includes a lifting frame (51), multiple fire shields (52), and a drive mechanism (53). The lifting frame (51) is movably and vertically arranged in the oil chamber (21). Multiple fire shields (52) are fixed on the lifting frame (51) and arranged around each furnace core unit (4). The driving mechanism (53) is connected to the lifting frame (51) and is used to drive the lifting frame (51) to rise and fall so as to adjust the flame size by changing its relative height position with the furnace core unit (4) through the fire shields (52). The driving mechanism (53) includes an operating handle (531).

2. The mineral oil-fired portable gas stove according to claim 1, characterized in that, The mounting bracket (3) is fixed with a limiting tube (31), and the furnace core unit (4) is installed inside the limiting tube (31); the limiting tube (31) has an opening (311) on its side wall; the fire shield (52) is tubular and is sleeved on the outer periphery of the limiting tube (31), and the fire shield (52) has a vent hole (521) on its side wall.

3. The mineral oil-fired portable gas stove according to claim 2, characterized in that, The vent (521) is positioned opposite to the opening (311); the vent (521) and the opening (311) are strip-shaped holes arranged in the vertical direction.

4. The mineral oil-fired portable gas stove according to claim 1, characterized in that, Multiple furnace core units (4) are arranged in a ring.

5. The mineral oil-fired portable gas stove according to claim 2, characterized in that, The mounting bracket (3) is equipped with a cover plate (32) at its upper end. The cover plate (32) is provided with a through hole (321) through which the fire shield (52), the limiting tube (31) and the furnace core unit (4) pass.

6. The mineral oil-fired portable gas stove according to claim 1, characterized in that, The drive mechanism (53) includes a connector (532), a transmission gear (533), a transmission shaft (534), and an operating handle (531). The connector (532) is meshed with the transmission gear (533) for transmission. The transmission gear (533) is fixed on the transmission shaft (534). The operating handle (531) is fixed at the end of the transmission shaft (534). When the transmission shaft (534) rotates, it drives the connector (532) to move up and down through the transmission gear (533), thereby driving the lifting frame (51) to move up and down.

7. The mineral oil-fired portable gas stove according to claim 6, characterized in that, The connector (532) is a tubular component fixed on the lifting frame (51). The side wall of the connector (532) is provided with transmission holes (5321) that mesh with the transmission gear (533). The upper end of the mounting frame (3) is provided with a positioning seat (54). The positioning seat (54) is provided with a limiting sleeve (541) that cooperates with the upper end of the tubular component. The transmission shaft (534) is connected to the positioning seat (54).

8. The mineral oil-fired portable gas stove according to claim 2, characterized in that, The lower edge of the fire shield (52) is provided with a first rivet piece (522), and the lifting frame (51) is provided with a first positioning hole (511). The lower end of the fire shield (52) extends into the first positioning hole (511) and is riveted and fixed by the first rivet piece (522); or / and, the lower edge of the limiting tube (31) is provided with a second rivet piece (312), and the mounting frame (3) is provided with a second positioning hole (33). The lower end of the limiting tube (31) extends into the second positioning hole (33) and is riveted and fixed by the second rivet piece (312).

9. The mineral oil-fired portable gas stove according to claim 1, characterized in that, The upper end of the furnace frame (1) is provided with a support assembly (11). The support assembly (11) includes a fixed support (111) fixedly connected to the furnace frame (1) and a movable support (112) pivotally connected to the fixed support (111). A stop (115) is fixed on the fixed support (111). A first stop (113) and a second stop (114) are provided on the movable support (112). When the movable support (112) is retracted, the stop (115) abuts against the first stop (113). When the movable support (112) is extended, the stop (115) abuts against the second stop (114).

10. The mineral oil-fired portable gas stove according to claim 1, characterized in that, The furnace core unit (4) includes a furnace core tube (41) and an ignition element disposed inside the furnace core tube (41). A plurality of air inlets (42) are provided on the side wall of the furnace core tube (41).

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