Self-extinguishing and heat-retaining stove head device and cassette stove

Abstract

The utility model provides a kind of automatic extinguishing heat preservation's stove end device and cassette stove, wherein, stove end device includes: for with fuel gas bottle is engaged to inhale gas control valve, control valve is connected with ignition switch;With the gas supply unit being connected with control valve, the gas supply unit includes: first gas path, first gas valve, second gas path and second gas valve, first gas valve is connected with for heat preservation switch, second gas valve is connected with cooking switch;Igniter;Combustion stove end;And, temperature control module, when detecting that temperature reaches predetermined temperature value, control second gas valve switches to closed state.The utility model can effectively avoid the phenomenon of deflagration when lighting, reduce the security risk, and can achieve the effect of automatic switching to heat preservation state, effectively prevent dry burning condition, and improve the precision of temperature control, especially can meet the use demand of steaming rice.

Description

Technical Field

[0001] This utility model relates to the field of gas stove technology, and in particular to a stove head device and a cassette stove with automatic flameout and heat preservation. Background Technology

[0002] A portable gas stove is a cooking appliance that uses butane gas as its primary fuel and heats food with an open flame. Portable gas stoves are popular with restaurants, campers, and families due to their lightweight portability and the fact that they don't require pre-installed gas lines or power outlets. However, existing portable gas stoves are prone to dry burning, require supervision during cooking, have inaccurate temperature control, and lack a keep-warm function, causing food to cool down easily. This is especially problematic when used as a rice cooker, as it cannot automatically switch to keep-warm mode when the rice is cooked. Furthermore, they are prone to flashover during ignition, posing a safety hazard, and lack windproof features. Utility Model Content

[0003] In view of the shortcomings of the prior art described above, the purpose of this utility model is to provide a stove head device and a cassette stove with automatic flameout and heat preservation, which has the advantages of achieving heat preservation function, reducing deflagration, and improving safety.

[0004] To achieve the above and other related objectives, this utility model provides the following technical solution: The first aspect of this utility model discloses a stove head device capable of automatic flameout and heat preservation, comprising: A control valve for engaging with a fuel cylinder to draw in fuel gas, the control valve being connected to an ignition switch; A gas supply unit connected to the control valve includes: a first gas path for supplying a low amount of gas for heat preservation and heating; a first gas valve for controlling the opening and closing of the first gas path; a second gas path for supplying a high amount of gas for cooking and heating; and a second gas valve for controlling the opening and closing of the second gas path. The first gas valve is connected to a heat preservation switch for controlling its opening and closing, and the second gas valve is connected to a cooking switch for controlling its opening and closing. An igniter connected to the gas supply unit and used to perform the ignition action; The combustion burner head corresponding to the igniter; and, A temperature control module for detecting the temperature of cookware, wherein when the temperature is detected to reach a predetermined temperature value, the temperature control module controls the second gas valve to switch to the closed state.

[0005] To achieve the above technical solution, during use, the fuel cylinder is engaged with the control valve. The control valve supplies the fuel cylinder's gas to the gas supply unit. First, the first gas valve is opened by operating the heat preservation switch, allowing a low volume of gas to be supplied to the first gas path. Then, the ignition switch controls the igniter to perform the ignition action, creating a small flame on the burner head for heat preservation. Subsequently, the second gas valve is opened by operating the cooking switch, allowing a high volume of gas to be supplied to the second gas path, thus creating a large flame for cooking. Because a small flame has already been created before ignition, deflagration during ignition is effectively avoided, reducing safety hazards. During cooking, the temperature control module is in contact with the cookware and monitors the cookware's temperature in real time. When the detected temperature reaches the preset value, the second gas valve is switched to the closed state, while the first gas valve remains open, thus automatically switching to the heat preservation state. This effectively prevents dry burning and improves the accuracy of temperature control, especially meeting the needs of steaming and cooking rice.

[0006] In one embodiment of the present invention, the furnace head device is supported on a base plate, and the heat preservation switch includes: a heat preservation operation part and a heat preservation control part connected to the heat preservation operation part. The heat preservation operation part is hinged to the base plate and corresponds to the first gas valve. The heat preservation control part is controlled by the switching action of the heat preservation operation part to control the opening and closing of the first gas valve.

[0007] To achieve the above technical solution, the insulation control unit is hinged and rotated by manipulating the insulation operation unit, thereby pressing or releasing the pressure on the first air valve, thus realizing the on / off control of the first air valve.

[0008] In one embodiment of the present invention, the cooking switch includes: a cooking operation unit and a cooking control unit connected to the cooking operation unit. The cooking operation unit is hinged to the base plate and corresponds to the second gas valve. The cooking control unit is controlled by the switching action of the cooking operation unit to control the on / off state of the second gas valve.

[0009] To achieve the above technical solution, the cooking control unit is hinged and rotated by manipulating the cooking operation unit, thereby pressing or releasing the pressure on the second gas valve, thus realizing the on / off control of the second gas valve.

[0010] In one embodiment of the present invention, an installation port is formed in the middle of the combustion burner head, and a fireproof ring corresponding to the installation port is provided on the combustion burner head, and the temperature control module is located inside the fireproof ring.

[0011] The above technical solution achieves the goal of further isolating the flame on the burner head through the flame isolation ring, thereby improving the accuracy of the temperature control module in detecting the temperature of the cookware.

[0012] In one embodiment of this utility model, a fixed support is also provided in the mounting port, and the temperature control module is inserted and fixed in the fixed support.

[0013] The above technical solution facilitates the installation and fixing of the temperature control module.

[0014] In one embodiment of this utility model, the temperature control module adopts a magnetic steel temperature limiter. The temperature measuring end of the magnetic steel temperature limiter is in contact with the cookware to detect the temperature information of the cookware. The actuating end of the magnetic steel temperature limiter is linked to the cooking switch to control the cooking switch to the off position when the temperature of the cookware reaches the predetermined temperature value.

[0015] By implementing the above technical solution, the magnetic steel thermostat can control the action by changing the magnetic force through temperature. The action of its active end at high temperature switches the cooking switch to the off position, making the control process more precise and convenient.

[0016] A second aspect of the present invention discloses a portable gas stove, comprising: Furnace body; As described in the first aspect, the automatically flame-out and heat-preserving burner head device is disposed within the furnace body, and a loading cavity for installing a fuel cylinder is formed on one side of the furnace body, the loading cavity corresponding to the control valve; and, A windproof outer shell is provided on the furnace body, the windproof outer shell is used to load cookware, and the combustion burner is located inside the windproof outer shell.

[0017] To achieve the above technical solution, the loading cavity is used to accommodate and fix the fuel gas cylinder. Since the combustion burner is located inside the windproof shell, when the cookware is loaded inside the windproof shell, on the one hand, the windproof shell can block the wind and facilitate ignition, which is especially beneficial for use in windy outdoor weather. On the other hand, it can reduce the heat dissipation efficiency of the cookware, which is beneficial for improving cooking speed and heat preservation effect, especially for use in colder weather.

[0018] In one embodiment of the present invention, a heat-conducting plate is further provided inside the furnace body, with one end of the heat-conducting plate close to the combustion furnace head and the other end extending into the loading cavity.

[0019] To achieve the above technical solution, during use, one end of the heat-conducting plate will absorb a portion of the residual heat from combustion and transfer it to the loading cavity, thereby enabling the fuel cylinder to maintain a suitable temperature. This effectively prevents the fuel gas in the cylinder from solidifying in cold weather, ensuring continuous combustion.

[0020] In one embodiment of the present invention, the windproof outer shell is provided with at least three sets of stove rack legs for supporting the cookware.

[0021] The above technical solution facilitates the support of cookware.

[0022] In one embodiment of the present invention, the end of the heat-conducting plate extending into the loading cavity has a groove adapted to the fuel cylinder.

[0023] To achieve the above technical solution, the fuel cylinder fits snugly against the tray when inserted into the loading cavity, thereby increasing the contact area between the heat-conducting plate and the fuel cylinder.

[0024] As described above, the present invention has the following beneficial effects: This utility model provides an automatic flameout and heat preservation burner device and a portable stove. The burner device includes: a control valve for engaging with a fuel cylinder to draw in fuel gas, the control valve being connected to an ignition switch; a gas supply unit connected to the control valve, the gas supply unit including: a first gas path for supplying a low amount of gas for heat preservation heating; a first gas valve for controlling the on / off state of the first gas path; a second gas path for supplying a high amount of gas for cooking heating; and a second gas valve for controlling the on / off state of the second gas path, the first gas valve being connected to a heat preservation switch for controlling its opening and closing, and the second gas valve being connected to a cooking switch for controlling its opening and closing; an igniter connected to the gas supply unit for performing the ignition action; a combustion burner corresponding to the igniter; and a temperature control module for detecting the temperature of the cookware, the temperature control module controlling the first gas valve to remain open and the second gas valve to switch to a closed state when the detected temperature reaches a predetermined temperature value. In use, the fuel cylinder is connected to the control valve. The control valve supplies gas from the fuel cylinder to the gas supply unit. First, the first gas valve is opened by operating the heat preservation switch, allowing a low amount of gas to be supplied to the first gas path. Then, the ignition switch is operated to control the igniter to ignite the burner, creating a small flame for heat preservation. Subsequently, the second gas valve is opened by operating the cooking switch, allowing a high amount of gas to be supplied to the second gas path, creating a large flame for cooking. Because a small flame has already been created before ignition, it effectively avoids deflagration during ignition, reducing safety hazards. During cooking, the temperature control module is in contact with the cookware and monitors the temperature of the cookware in real time. When the detected temperature reaches the preset value, the second gas valve is switched to the closed state, while the first gas valve remains open, thus automatically switching to the heat preservation state. This effectively prevents dry burning and improves the accuracy of temperature control, especially meeting the needs of steaming and cooking rice. Attached Figure Description

[0025] Figure 1 The diagram shown is a structural schematic of a furnace head device capable of automatic flameout and heat preservation in an embodiment of this utility model.

[0026] Figure 2This is a schematic diagram of the stove head device with automatic flameout and heat preservation, shown from another perspective in an embodiment of this utility model.

[0027] Figure 3 The diagram shown is a schematic representation of the assembly structure of the temperature control module and the combustion furnace head in an embodiment of this utility model.

[0028] Figure 4 The diagram shown is a cross-sectional view of the temperature control module and the combustion furnace head in an embodiment of this utility model.

[0029] Figure 5 The diagram shown is a structural schematic of the cassette stove in an embodiment of this utility model.

[0030] Figure 6 The diagram shown is a structural schematic of a cassette stove with a pot mounted on it, as described in an embodiment of this utility model.

[0031] Component designation explanation 10. Furnace body; 11. Base plate; 12. Loading cavity; 13. Heat-conducting plate; 14. Fuel cylinder; 20. Control valve; 21. Ignition switch; 30. Gas supply unit; 31. First gas path; 32. First gas valve; 33. Second gas path; 34. Second gas valve; 40. Heat preservation switch; 41. Heat preservation operation section; 42. Heat preservation control section; 50. Cooking switch; 51. Cooking operation section; 52. Cooking control section; 60. Ignition device; 70. Combustion burner head; 80. Temperature control module; 81. Fireproof ring; 82. Fixed support; 83. Temperature-sensing soft magnet; 84. Permanent magnet; 85. Spring; 86. Switch spring; 90. Windproof outer shell; 91. Cookware; 92. Furnace frame support feet. Detailed Implementation

[0032] The following specific embodiments illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification. It should be noted that, unless otherwise specified, the following embodiments and features can be combined with each other.

[0033] Please see Figures 1 to 4 The first aspect of this utility model provides a stove head device with automatic flameout and heat preservation, including: a control valve 20 for engaging with a fuel cylinder 14 to draw in gas, the control valve 20 being connected to an ignition switch 21; a gas supply unit 30 connected to the control valve 20; an igniter 60 connected to the gas supply unit 30 for performing ignition; a combustion stove head 70 corresponding to the igniter 60; and a temperature control module 80 for detecting the temperature of a cookware 91.

[0034] Specifically, the control valve 20 is connected to the mouth of the fuel cylinder 14 and is used to control the gas supply from the fuel cylinder 14 to the gas supply unit 30. The ignition switch 21 is a rotary switch. During use, the amount of gas supplied can be changed and the flame intensity can be adjusted by adjusting the rotation angle of the ignition switch 21. Both the control valve 20 and the ignition switch 21 can use existing technology, which will not be elaborated here.

[0035] The gas supply unit 30 includes: a first gas passage 31 for supplying a low gas volume for heat preservation and heating; a first gas valve 32 for controlling the opening and closing of the first gas passage 31; a second gas passage 33 for supplying a high gas volume for cooking and heating; and a second gas valve 34 for controlling the opening and closing of the second gas passage 33. The first gas valve 32 is connected to a heat preservation switch 40 for controlling its opening and closing, and the second gas valve 34 is connected to a cooking switch 50 for controlling its opening and closing. It can be understood that low gas volume refers to the gas flow rate that can maintain the heat preservation flame, and high gas volume refers to the gas flow rate that can generate a larger heat. The first gas valve 32 and the second gas valve 34 control the first gas passage 31 and the second gas passage 33 to supply different gas flow rates, thereby achieving different heat control.

[0036] The burner head assembly is supported on a base plate 11. The heat preservation switch 40 includes a heat preservation operation part 41 and a heat preservation control part 42 connected to the heat preservation operation part 41. The heat preservation operation part 41 is hinged to the base plate 11 and corresponds to the first gas valve 32. The heat preservation control part 42 is controlled by the switching action of the heat preservation operation part 41 to control the opening and closing of the first gas valve 32. It can be understood that the heat preservation switch 40 has an open position and a closed position. A hinge part is provided in the middle of the heat preservation control part 42 for hinged connection with the hinge seat provided on the base plate 11. One end of the heat preservation control part 42 is connected to the heat preservation operation part 41, and the other end is connected to the heat preservation operation part 41. One end of the insulation control unit 42 is in contact with the opening and closing control end of the first air valve 32. When the insulation switch 40 is controlled to be in the open position by the insulation operation unit 41, the insulation control unit 42 presses against the opening and closing control end of the first air valve 32 to open the first air valve 32. When the insulation switch 40 is controlled to be in the closed position by the insulation operation unit 41, the insulation control unit 42 removes the pressure on the first air valve 32, and the first air valve 32 closes again. By operating the insulation operation unit 41 to control the hinge rotation of the insulation control unit 42, the insulation control unit 42 is pressed against or the pressure is removed from the first air valve 32, thereby realizing the on-off control of the first air valve 32.

[0037] The cooking switch 50 includes a cooking operation unit 51 and a cooking control unit 52 connected to the cooking operation unit 51. The cooking operation unit 51 is hinged to the base plate 11 and corresponds to the second gas valve 34. The cooking control unit 52 is controlled by the switching action of the cooking operation unit 51 to control the opening and closing of the second gas valve 34. It can be understood that the cooking switch 50 also has an open position and a closed position. A hinge part is provided in the middle of the cooking control unit 52 for hinged connection with the hinge seat provided on the base plate 11. It can usually be configured to coaxially hinge the heat preservation control unit 42 and the cooking control unit 52. One end of the cooking control unit 52 is connected to the cooking operation unit 51, and the other end abuts against the opening and closing control end of the second gas valve 34. The cooking operation unit 51 and the heat preservation operation unit 41 are arranged in a staggered manner, either vertically or side-by-side, so that both can switch between the open and closed positions. When the cooking switch 50 is controlled to be in the open position by the cooking operation unit 51, the opening and closing control end of the second air valve 34 of the cooking control unit 52 is pressed to open the second air valve 34. When the cooking switch 50 is controlled to be in the closed position by the cooking operation unit 51, the pressure on the second air valve 34 is released by the cooking control unit 52, and the second air valve 34 is closed again. By operating the cooking operation unit 51 to control the hinged rotation of the cooking control unit 52, the pressure on or release of the pressure on the second air valve 34 is achieved, thereby realizing the on / off control of the second air valve 34.

[0038] When the temperature control module 80 detects that the temperature has reached the predetermined temperature value, it controls the second gas valve 34 to switch to the closed state. In this embodiment, the temperature control module 80 preferably adopts a magnetic steel temperature limiter. The temperature measuring end of the magnetic steel temperature limiter is in contact with the pot 91 to detect the temperature information of the pot 91. The actuating end of the magnetic steel temperature limiter is linked to the cooking switch 50 to control the cooking switch 50 to switch to the closed position when the temperature of the pot 91 reaches the predetermined temperature value.

[0039] Understandably, the magnetic steel temperature limiter includes a temperature-sensing soft magnet 83 and a permanent magnet 84. The temperature-sensing soft magnet 83 and the permanent magnet 84 are elastically connected by a spring 85. The bottom of the permanent magnet 84 is the actuating end, and a switch spring 86 is provided at the bottom of the permanent magnet 84. The end of the cooking control unit 52 abuts against the switch spring 86. When a pot 91 is placed on the portable gas stove, the switch spring 86 will be pressed down, allowing the cooking switch 50 to be pressed inward and adjusted to the open position. When no pot 91 is placed on the portable gas stove, the cooking switch 50 will automatically spring back to the open position under the action of the switch spring 86, meaning that the cooking switch 50 cannot be switched to the open position.

[0040] When the cooking switch 50 is in the open position, the cooking control unit 52 pushes the permanent magnet 84 to engage with the temperature-sensitive soft magnet 83. The magnetic attraction between the temperature-sensitive soft magnet 83 and the permanent magnet 84 can counteract the elastic force of the spring 85. During cooking, as water evaporates in the pot, it carries away heat, keeping the inner pot temperature limited to the boiling point of water (100°C). The temperature-sensitive soft magnet 83 maintains its magnetism and remains engaged with the permanent magnet 84. When water evaporates from the pot, the temperature at the bottom of the pot quickly rises above 100°C. When the temperature reaches ℃, the temperature-sensing soft magnet 83 reaches its Curie point (approximately 103±2℃). At this point, the temperature-sensing soft magnet 83 instantly loses its magnetism, and the permanent magnet 84 falls under its own gravity and internal elasticity, thereby pressing against the cooking control unit 52 and switching the cooking switch 50 to the off position, thus closing the second gas valve 34. The magnetic steel thermostat can achieve control by changing the magnetic force through temperature. By switching the cooking switch 50 to the off position through the action of its actuating end at high temperature, the control process is more precise and convenient.

[0041] In this embodiment, both the igniter 60 and the combustion burner 70 can adopt existing technologies, which will not be described in detail here. The outlets of the first gas passage 31 and the second gas passage 33 are connected to a main gas passage. The igniter 60 is set on the main gas passage. It should be noted that an installation port is formed in the middle of the combustion burner 70, and a flameproof ring 81 corresponding to the installation port is provided on the combustion burner 70. The temperature control module 80 is located inside the flameproof ring 81. The flameproof ring 81 is fixed to the combustion burner 70 by welding, snap-fitting, or screw connection. The upper end of the temperature control module 80 is slightly higher than the flameproof ring 81, so that the temperature control module 80 can fit in close contact with the bottom of the cookware 91. The flameproof ring 81 further isolates the flame on the combustion burner 70, improving the accuracy of the temperature control module 80 in detecting the temperature of the cookware 91.

[0042] Meanwhile, a fixed support 82 is provided in the installation port. The temperature control module 80 is inserted and fixed in the fixed support 82 to facilitate the installation and fixing of the temperature control module 80. The fixed support 82 extends to the bottom of the combustion burner head 70 and is fixed to the mounting platform provided on the base plate 11 by welding, screw connection or other means. Of course, in some embodiments, the bottom of the combustion burner head 70 can also be fixed to the fixed support 82 by welding, screw connection or other means.

[0043] In use, the fuel cylinder 14 is engaged with the control valve 20. The control valve 20 controls the supply of gas from the fuel cylinder 14 to the gas supply unit 30. First, the first gas valve 32 is opened by operating the heat preservation switch 40, allowing a low volume of gas to be supplied to the first gas passage 31. Then, the ignition switch 21 controls the igniter 60 to perform the ignition action, creating a small flame on the burner head 70 for heat preservation. Subsequently, the second gas valve 34 is opened by operating the cooking switch 50, allowing a high volume of gas to be supplied to the second gas passage 33, thus creating a large flame for cooking. A small flame is formed before the main fire is ignited, thus effectively preventing deflagration during ignition and reducing safety hazards. During cooking, the temperature control module 80 contacts the cookware 91 and monitors its temperature in real time. When the detected temperature reaches the preset value, it controls the second gas valve 34 to switch to the closed state while the first gas valve 32 remains open, thereby automatically switching to the heat preservation state. This effectively prevents dry burning and improves the accuracy of temperature control, especially meeting the needs of steaming and cooking rice.

[0044] like Figure 5 and Figure 6 As shown, a second aspect of the present invention provides a portable gas stove, comprising: a stove body 10; an automatic flameout and heat preservation burner device as described in the first aspect, the automatic flameout and heat preservation burner device being disposed within the stove body 10, and a loading cavity 12 for mounting a fuel cylinder 14 being formed on one side of the stove body 10, the loading cavity 12 corresponding to a control valve 20; and a windproof outer shell 90 disposed within the stove body 10, the windproof outer shell 90 being used to load a cookware 91, and the combustion burner 70 being located within the windproof outer shell 90.

[0045] Specifically, one side of the loading cavity 12 is open for the insertion of the fuel cylinder 14. When the fuel cylinder 14 is inserted into the loading cavity 12, it is connected to the control valve 20. The bottom of the windproof shell 90 is provided with a combustion port for the combustion burner 70 and the temperature control module 80 to pass through. The windproof shell 90 is locked to the furnace body 10 with screws. The size of the windproof shell 90 is slightly larger than the size of the cookware 91, so that the pot body of the cookware 91 can be placed inside the windproof shell 90. At least three sets of stove rack legs 92 for supporting the cookware 91 are provided inside the windproof shell 90. The stove rack legs 92 are evenly distributed around the inner wall of the windproof shell 90 to support the cookware 91.

[0046] Furthermore, a heat-conducting plate 13 is also provided inside the furnace body 10. One end of the heat-conducting plate 13 is close to the combustion head 70, and the other end extends into the loading cavity 12. The end extending into the loading cavity 12 has a groove that is compatible with the fuel cylinder 14. When the fuel cylinder 14 is inserted into the loading cavity 12, it fits into the groove. During use, one end of the heat-conducting plate 13 absorbs some of the residual heat from combustion and transfers it into the loading cavity 12, thereby enabling the fuel cylinder 14 to maintain a suitable temperature. This effectively prevents the gas in the fuel cylinder 14 from solidifying in cold weather and ensures continuous combustion.

[0047] The loading cavity 12 is used to house and fix the fuel gas cylinder 14. Since the combustion burner 70 is located inside the windproof shell 90, when the cookware 91 is loaded inside the windproof shell 90, on the one hand, the windproof shell 90 can block the wind and facilitate ignition, which is especially beneficial for use in windy outdoor weather. On the other hand, it can reduce the heat dissipation efficiency of the cookware 91, which is beneficial for improving cooking speed and heat preservation effect, which is especially beneficial for use in colder weather.

[0048] The ignition control method for a portable gas stove according to this utility model embodiment includes: S100, operate the heat preservation switch 40 to control the first air valve 32 to open so that the first air passage 31 is in a connected state. When the heat preservation switch 40 is in the open position, the first air valve 32 can be opened.

[0049] S200: Operate the ignition switch 21 to open the control valve 20 and supply a low amount of gas to the first gas line 31. At the same time, the igniter 60 performs the ignition action. When the ignition switch 21 is turned to the ignition position, the control valve 20 opens to start supplying gas, and the igniter 60 performs the ignition action. The low amount of gas is sufficient to maintain the heat preservation flame, so that the supplied gas can be ignited on the combustion head 70 and maintain the heat preservation flame.

[0050] S300, the cooking switch 50 controls the second gas valve 34 to open so that a high volume of gas can be supplied through the second gas passage 33. When the cooking switch 50 is in the open position, the second gas valve 34 can be opened, and a high volume of gas can be supplied through the second gas passage 33, so that the heat is increased for rapid cooking. It is understood that during this process, the first gas passage 31 can supply gas simultaneously.

[0051] Before the S400 and keep-warm switch 40 are operated again, the temperature control module 80 monitors the temperature of the cookware 91 in real time. When the detected temperature reaches the preset temperature, the temperature control module 80 controls the cooking switch 50 to close so that the second gas valve 34 is disconnected and the first gas valve 32 remains open to retain low gas flow for heating. The preset temperature is usually set to 103±2℃. When the temperature control module 80 detects that the temperature has reached the preset temperature, it links the cooking switch 50 to the closed position. At this time, the second gas valve 34 is disconnected. The first gas valve 32 is not associated with the second gas valve 34, so it can maintain the open state and adjust the heat to the keep-warm state, that is, maintain the keep-warm state.

[0052] The above method can achieve the effect of automatically switching to the heat preservation state, effectively preventing dry burning and improving the accuracy of temperature control, especially meeting the needs of steaming and cooking rice.

[0053] The above embodiments are merely illustrative of the principles and effects of this utility model and are not intended to limit this utility model. All equivalent modifications or alterations made by those skilled in the art without departing from the spirit and technical concept disclosed in this utility model should still be covered by the claims of this utility model.

Claims

1. A stove head device with automatic flameout and heat preservation, characterized in that, include: A control valve for engaging with a fuel cylinder to draw in fuel gas, the control valve being connected to an ignition switch; A gas supply unit connected to the control valve includes: a first gas path for supplying a low amount of gas for heat preservation and heating; a first gas valve for controlling the opening and closing of the first gas path; a second gas path for supplying a high amount of gas for cooking and heating; and a second gas valve for controlling the opening and closing of the second gas path. The first gas valve is connected to a heat preservation switch for controlling its opening and closing, and the second gas valve is connected to a cooking switch for controlling its opening and closing. An igniter connected to the gas supply unit and used to perform the ignition action; The combustion burner head corresponding to the igniter; and, A temperature control module for detecting the temperature of cookware, wherein when the temperature is detected to reach a predetermined temperature value, the temperature control module controls the second gas valve to switch to the closed state.

2. The automatic flameout and heat preservation furnace head device according to claim 1, characterized in that, The furnace head device is supported on a base plate. The heat preservation switch includes a heat preservation operation part and a heat preservation control part connected to the heat preservation operation part. The heat preservation operation part is hinged to the base plate and corresponds to the first gas valve. The heat preservation control part is controlled by the switching action of the heat preservation operation part to control the opening and closing of the first gas valve.

3. The automatic flameout and heat preservation furnace head device according to claim 2, characterized in that, The cooking switch includes a cooking operation unit and a cooking control unit connected to the cooking operation unit. The cooking operation unit is hinged to the base plate and corresponds to the second gas valve. The cooking control unit is controlled by the switching action of the cooking operation unit to control the on / off state of the second gas valve.

4. The automatic flameout and heat preservation furnace head device according to claim 1, characterized in that, The combustion burner head has an installation port in the middle, and the combustion burner head is provided with a fireproof ring corresponding to the installation port, and the temperature control module is located inside the fireproof ring.

5. The automatic flameout and heat preservation furnace head device according to claim 4, characterized in that, The mounting port is also provided with a fixed support, and the temperature control module is inserted and fixed in the fixed support.

6. The automatic flameout and heat preservation furnace head device according to claim 4 or 5, characterized in that, The temperature control module uses a magnetic steel temperature limiter. The temperature measuring end of the magnetic steel temperature limiter is in contact with the cookware to detect the temperature information of the cookware. The actuating end of the magnetic steel temperature limiter is linked to the cooking switch to control the cooking switch to the off position when the temperature of the cookware reaches the predetermined temperature value.

7. A portable gas stove, characterized in that, include: Furnace body; The automatic flameout and heat preservation burner device as described in any one of claims 1-6, wherein the automatic flameout and heat preservation burner device is disposed within the furnace body, and a loading cavity for installing a fuel cylinder is formed on one side of the furnace body, the loading cavity corresponding to the control valve; and, A windproof outer shell is provided on the furnace body, the windproof outer shell is used to load cookware, and the combustion burner is located inside the windproof outer shell.

8. The portable gas stove according to claim 7, characterized in that, The furnace body is also provided with a heat-conducting plate, one end of which is close to the combustion furnace head and the other end extends into the loading cavity.

9. The portable gas stove according to claim 7, characterized in that, The windproof outer shell is equipped with at least three sets of stove rack legs for supporting the cookware.

10. The portable gas stove according to claim 8, characterized in that, The end of the heat-conducting plate that extends into the loading cavity has a groove adapted to the fuel cylinder.

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