Outdoor stove

Abstract

The utility model discloses an outdoor stove which comprises a shell and an infrared burner installed in an inner cavity of the shell, an infrared light-emitting face is arranged on the upper surface of the infrared burner and is exposed out of the upper end face of the shell, and a long open fire base is arranged on one side of the infrared light-emitting face. The gas source is connected with a one-to-two valve through a gas conveying pipe, the output end of the one-to-two valve is connected with a gas inlet pipe, the output end of the gas inlet pipe is connected to a gas-distributing pipe, one path of the gas-distributing pipe is input to the infrared burner, and the other path of the gas-distributing pipe is input to the ever-burning flame seat. According to the utility model, ever-burning fire is adopted as the mother fire of the infrared burner, the wind resistance is good, meanwhile, the one-to-two valve is adopted to control the mother fire and the infrared burner at the same time, and as the nozzle of the ever-burning fire seat is small in diameter and is of a fixed structure, the fire outlet speed is relatively high, and the firepower of the ever-burning fire cannot be influenced when the valve is adjusted; compared with an infrared furnace end without long open fire, the furnace end is not prone to flameout when the fire is adjusted to be small.

Description

Technical Field

[0001] The utility model relates to the field of outdoor stoves, in particular to an outdoor stove. Background Art

[0002] As a type of portable gas stove, cassette stoves are often used for home or outdoor camping cooking. Traditional infrared cassette stoves only use gas infrared burners as another heat source to replace gas open flames. Apart from the advantage of windproof performance, they do not consider other application scenarios.

[0003] The stoves on the market for making tea around the stove are mainly charcoal fires. Because it is difficult to control the fire of charcoal fires and the problem of carbon monoxide emitted by combustion leads to poor user experience and safety hazards. On this basis, energy alternatives represented by electric ceramic stoves have begun to appear in stove-made tea stoves, but electric ceramic stoves have low power, generally 900 to 1200W, and heat food slowly. In addition, traditional infrared cassette stoves have no open flames and poor wind resistance. Utility Model Content

[0004] The purpose of the utility model is to provide an outdoor stove to solve the problems raised in the above background technology.

[0005] In order to solve the above technical problems, the utility model provides the following technical solutions: an outdoor stove, comprising a shell, an infrared burner installed in the inner cavity of the shell, an infrared luminous surface is arranged on the upper surface of the infrared burner and exposed on the upper end surface of the shell, and a long-open flame seat is arranged on one side of the infrared luminous surface;

[0006] It also includes a gas source, which is connected to a one-to-two valve via a gas transmission pipe, an output end of the one-to-two valve is connected to an air intake pipe, an output end of the air intake pipe is connected to a gas distribution pipe, one path of the gas distribution pipe is input to the infrared burner head, and the other path is input to the ever-opening flame seat.

[0007] Preferably, it also includes a reflective plate arranged on the periphery of the infrared light-emitting surface, and the reflective plate is a bent structure with a height difference along the radial direction.

[0008] Preferably, the bending structure includes a first folding plate, a second folding plate and a third folding plate. The angle A between the first folding plate and the horizontal plane and the angle B between the third folding plate and the horizontal plane are greater than angle B. The second folding plate bends itself to form an angle C, which is smaller than angle B.

[0009] Preferably, angle A and angle B are both between 140° and 170°, and angle C is between 90° and 110°.

[0010] Preferably, a gap S is provided between the inner side of the reflective plate and the infrared furnace head, and a gap G is provided between the outer side of the reflective plate and the shell.

[0011] Preferably, an over-temperature protection valve is installed at the connecting pipe of the gas source, and one end of the over-temperature protection valve is connected to the gas supply pipe.

[0012] Preferably, a steel wire baking grid is mounted on the furnace body, the steel wire baking grid is spaced apart from the upper end of the furnace body, and the bending structure of the reflective plate is used to evenly reflect the heat radiation of the infrared luminous surface to the bottom of the steel wire baking grid.

[0013] Preferably, the height of the infrared light-emitting surface is higher than the end of the reflective plate close to the infrared light-emitting surface.

[0014] Preferably, the end of the third folding plate is an upwardly tilted structure.

[0015] Preferably, a notch is provided on the end surface of the reflector plate for installation of the long-open flame seat, and the notch is connected to the gap S.

[0016] Compared with the prior art, the beneficial effects of the utility model are:

[0017] The utility model adopts a pilot flame as the primary fire of the infrared burner, and has good wind resistance. At the same time, a one-turn two-valve is used to control the primary fire and the infrared burner at the same time. Since the nozzle diameter of the pilot flame seat is small and it is a fixed structure, the fire speed is relatively fast, and the firepower of the pilot flame will not be affected when the valve is adjusted. Compared with the infrared burner without a pilot flame, the burner is not easy to go out when it is adjusted to a low fire. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0019] Figure 2 This is a schematic diagram of the installation structure of the reflector of the utility model ( Figure 1 (enlarged view of point A in the middle);

[0020] Figure 3 This is a schematic diagram of the structure of the reflector of the utility model;

[0021] Figure 4 This is a schematic diagram of the internal structure installation of the furnace body of the utility model;

[0022] Figure 5 This is a schematic diagram of the installation structure of the permanent fire seat of the utility model;

[0023] Figure 6 It is a schematic diagram of heat radiation and heat convection of the stove head when the grill of the utility model is not fully loaded;

[0024] Figure 7 This is a schematic diagram of heat convection on the stove head when the grill is fully loaded;

[0025] Figure 8 It is a schematic diagram of heat convection inside the furnace body of the utility model. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0027] Please refer to the figure, this embodiment provides an outdoor stove, including a shell 4, an infrared stove head 2 installed in the inner cavity of the shell 4, the upper surface of the infrared stove head 2 is provided with an infrared light-emitting surface 21, and is exposed to the upper end surface of the shell 4, and the outer edge of the infrared light-emitting surface 21 is surrounded by a reflective plate 101; the reflective plate 101 is a circular ring structure, and the infrared light-emitting surface 21 is located in the middle position of the reflective plate 101.

[0028] The reflective plate 101 is a bent structure with a height difference along the radial direction; a wire baking grid 3 is mounted on the shell 4, and the wire baking grid 3 is spaced apart from the upper end of the shell 4. The bent structure of the reflective plate 101 is used to evenly reflect the heat radiation of the infrared light-emitting surface 21 to the bottom of the wire baking grid 3.

[0029] A gap S is provided between the inner side of the reflective plate 101 and the infrared furnace head 2, and a gap G is provided between the outer side of the reflective plate 101 and the housing 4;

[0030] An air inlet 6 is provided at the bottom and / or side of the housing 4 , and the air inlet 6 is connected to the gap S and the gap G through the inner cavity of the housing 4 to form an air flow field.

[0031] In order to improve the outdoor windproof performance, a pilot flame is designed; the pilot flame has a relatively fast ignition speed, and the nozzle aperture is fixed. The valve adjustment will not affect the flame power of the pilot flame. Since the pilot flame nozzle diameter is only 0.1mm, the main burner nozzle is 0.35-0.45mm (range), and the valve outlet pressure is consistent, the flow rate of the main burner nozzle is greatly reduced when the valve is adjusted, and the pilot flame has a small nozzle diameter, and the flow rate does not change much; compared with infrared burners without pilot flames, the burner is not easy to extinguish when adjusted to a low fire. For specific structural design, refer to Figure 5 As shown, a permanent flame holder 112 is provided on one side of the infrared light emitting surface 21, and the permanent flame is used as the primary flame of the infrared burner. The permanent flame holder 112 is located on one side of the infrared light emitting surface 21, and a notch is provided on the end face of the reflector 101 for the permanent flame holder 112 to be installed. An igniter 1120 is provided on one side of the permanent flame holder 112, and the notch is connected to the gap S.

[0032] Reference Figure 8As shown in the figure, the blue line in the lower part is the cold air convection at the bottom of the shell 4, and the red line in the upper part is the hot air convection. Cold air enters the shell 4 through the air inlet 6 at the bottom. At the same time, the heat convection inside the furnace 4 can discharge the heat of the infrared burner 2 to the top of the furnace through the convection gap, that is, the gap G, and bring the cold air at the bottom into the furnace body; thereby achieving heat dissipation and circulation inside the high-power furnace, and the shell temperature will not be too high.

[0033] In addition, the gap S provided is a secondary oxygen inlet gap to ensure the oxygen required by the furnace.

[0034] On the basis of the above, refer to Figure 2 As shown, the height of the infrared light-emitting surface 21 is higher than the end of the reflector 101 close to the infrared light-emitting surface 21. This ensures that most of the infrared light directly contacts the reflector, and directly radiates the kettle and food. At the same time, the end of the reflector 101 close to the infrared light-emitting surface 21 is an upturned structure, which can be used to store part of the overflow liquid to prevent it from flowing into the housing 4 in large quantities. In addition, the reflector 101 also plays a role in facilitating the observation of the firepower. Through reflection, the adjustment of the firepower of the burner can be observed from multiple angles, which increases the user experience.

[0035] As a specific design of this embodiment, refer to Figure 3 As shown, the side body of the reflector 101 is composed of a first folding plate 1011, a second folding plate 1013 and a third folding plate 1012, wherein the angle A between the first folding plate 1011 and the horizontal plane (with the infrared light emitting surface 21 as a reference) and the angle B between the third folding plate 1012 and the horizontal plane are both between 140° and 170°. Angle A is slightly larger than angle B. Preferably, angle A is 168° and angle B is 150°. Figure 3 As shown, the second folding plate 1013 is arranged between the first folding plate 1011 and the third folding plate 1012, and the second folding plate 1013 is bent to form an angle C, which is about 100°, preferably 100°. All the bending transition areas of the reflector 101 are arc-shaped bending structures. It is not only easy to process and produce, but also improves the reflection effect and makes the reflection more uniform.

[0036] Finally, the utility model also relates to the improvement of the gas supply system, specifically referring to Figure 4As shown, it includes a dual-channel gas supply system, which includes a gas source 1 (i.e., a gas tank), an over-temperature protection valve 116 is installed at the connecting pipe of the gas source 1, one end of the over-temperature protection valve 116 is connected to a gas pipe 115, and the gas pipe 115 is connected to a one-turn two-valve 114, and a knob is installed on the one-turn two-valve 114 for control. The output end of the one-turn two-valve 114 is connected to an air inlet pipe 113, and the output end of the air inlet pipe 113 is connected to a gas distribution pipe 110, one of which is input to the infrared burner 2, and the other is input to the long-opening flame seat 112. The design of dual valves and dual channels is adopted to realize the control of the mother fire and the burner burner with one knob while ensuring safety, thereby improving the user experience.

[0037] Furthermore, in terms of structural details, in order to further improve the heat insulation between the infrared burner head 2 and the shell 4, a mounting bracket 5 is arranged at the bottom of the infrared burner head 2, the mounting bracket 5 and the bottom surface of the shell 4 are suspended in the air, and a tetrafluoroethylene burner head insulation pad 7 is embedded between the bottom of the infrared burner head 2 and the mounting bracket 5 to prevent the burner head temperature from being transmitted to the bottom of the shell 4.

[0038] At the same time, in order to facilitate the installation of accessories, a plurality of locations are installed by using a snap-in structure, such as a snap-in slot is provided on the reflector 101, which is connected to a snap-in block at a corresponding position of the housing 4. Figure 1 The knob 9 shown is provided with a mounting clip 91 at its mounting position, and a slot for the clip 91 to pass through is provided on the inner side of the housing 4. During installation, the clip 91 is inserted into the slot and then bent and fixed.

[0039] In addition, for ease of use, the outer edge of the shell 4 of this embodiment is provided with an extended outer edge, so that the stove can be embedded in the desktop for use, keeping the desktop tidy.

[0040] When in use, this embodiment is aimed at the more common application scenario of "cooking tea around the stove". In this scenario, a kettle is usually placed in the middle of the grill. Figure 6 As shown, the kettle and the reflector 101 can form a synergistic effect of reflecting heat radiation, promoting the uniformity of heat radiation. In this application scenario, it is not just "making tea", but "objects to be baked", such as oranges and longans, are usually placed around the kettle for baking. Under the action of the reflector, heat can be evenly transferred to these "objects to be baked". Figure 6 As shown, Figure 6 The line in the middle represents the heat convection transferred by the infrared light emitting surface 211, and the arrows in the figure represent the reflected heat radiation.

[0041] Furthermore, if the grill is full of "food to be grilled", refer to Figure 7 As shown, the suspended gap between the grill and the shell 4 can realize external convection to discharge the exhaust gas, the exhaust gas will not affect the combustion, and the heat can smoothly cover the grill.

[0042] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An outdoor stove, characterized in that: It comprises a shell (4) and an infrared burner head (2) installed in the inner cavity of the shell (4); the upper surface of the infrared burner head (2) is provided with an infrared light-emitting surface (21) and is exposed to the upper end surface of the shell (4); and a permanent flame seat (112) is provided on one side of the infrared light-emitting surface (21); The invention also comprises a gas source (1), wherein the gas source (1) is connected to a one-turn two-valve (114) via a gas transmission pipe (115), the output end of the one-turn two-valve (114) is connected to an air inlet pipe (113), the output end of the air inlet pipe (113) is connected to an air distribution pipe (110), one path of the air distribution pipe (110) is input to an infrared burner head (2), and the other path is input to a permanent flame seat (112).

2. The outdoor stove according to claim 1, characterized in that: It also includes a reflection plate (101) arranged on the periphery of the infrared light emitting surface (21), wherein the reflection plate (101) is a bent structure with a height difference along the radial direction.

3. The outdoor stove according to claim 2, characterized in that: The bending structure comprises a first folding plate (1011), a second folding plate (1013) and a third folding plate (1012); an angle A between the first folding plate (1011) and a horizontal plane and an angle B between the third folding plate (1012) and the horizontal plane; the angle A is greater than the angle B; the second folding plate (1013) is bent to form an angle C, which is less than the angle B.

4. The outdoor stove according to claim 3, characterized in that: Angle A and angle B are both between 140°-170°, and angle C is between 90°-110°.

5. The outdoor stove according to claim 3, characterized in that: A gap S is provided between the inner side of the reflection plate (101) and the infrared furnace head (2), and a gap G is provided between the outer side of the reflection plate (101) and the housing (4).

6. The outdoor stove according to claim 5, characterized in that: An over-temperature protection valve (116) is installed at the connecting pipe of the gas source (1), and one end of the over-temperature protection valve (116) is connected to the gas delivery pipe (115).

7. The outdoor stove according to claim 2, characterized in that: A steel wire grill (3) is mounted on the shell (4), the steel wire grill (3) and the upper end of the shell (4) are spaced apart, and the bending structure of the reflective plate (101) is used to evenly reflect the heat radiation of the infrared light-emitting surface (21) to the bottom of the steel wire grill (3).

8. The outdoor stove according to claim 2, characterized in that: The height of the infrared light-emitting surface (21) is higher than the end of the reflective plate (101) close to the infrared light-emitting surface (21).

9. The outdoor stove according to claim 3, characterized in that: The end of the third folding plate (1012) is an upwardly tilted structure.

10. The outdoor stove according to claim 2, characterized in that: A notch is provided on the end surface of the reflector plate (101) for mounting the pilot flame holder (112), and the notch is communicated with the gap S.

Images