Gas valve and gas stove
By designing a gas valve with variable cross-sectional area, the problem that multiple fire rings of the gas stove burner cannot independently adjust the firepower size and heating area are solved, and stable power output and flexible heating control are achieved, improving cooking effect and user experience .
Patent Information
- Application Number
- CN202420948084.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-06
- Publication Date
- 2025-02-11
- Estimated Expiration
- 2034-05-06
AI Technical Summary
The burner of the existing gas stove has multiple fire rings that cannot independently adjust the firepower size and heating area, and cannot achieve stable power output, affecting the cooking effect.
A gas valve is designed, and the valve core is equipped with the center, middle and outer ring channels of variable cross-sectional area, which can be selectively conducted respectively, and the cross-sectional area of the channel is adjusted by the rotation of the valve core, so as to realize the burner fire ring of the combustor Independent firepower regulation and stable power output.
The independent fire power adjustment of the multiple fire rings of the burner and the flexible adjustment of the heating area are achieved, ensuring that the stable power output is always maintained in different cooking operations, improving the cooking effect and user experience.
Smart Images
Figure CN222458462U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of gas stoves, in particular to a gas valve and a gas stove. Background Art
[0002] Gas stoves are a must-have in modern kitchens. The existing gas stoves have a heating method that adjusts the firepower (heat load) by a knob, but the knob cannot adjust the heating area of the burner. The multiple fire rings of the burner can only adjust the firepower at the same time, increase, decrease or close at the same time, and cannot independently extinguish a certain fire ring to achieve different heating areas, and cannot independently adjust the firepower of a certain fire ring. When cooking, users need different heating areas or different firepowers of multiple fire rings to improve the taste of food for different cooking utensils or different cooking methods. For example, in cooking operations such as stir-frying, the stove needs the central fire ring to heat quickly and centrally. If the outer ring fire is turned on, the firepower of the central fire ring will be weakened; in cooking operations such as stewing, the outer ring fire is often more needed for surrounding heating. At this time, turning on the central fire ring will cause the center to boil and roll, affecting the taste of the stewed food.
[0003] In addition, users also need to achieve stable power under each different heating area and when the respective fire powers of multiple fire rings are different. In this way, even if the fire powers of multiple fire rings are adjusted separately, or some fire rings are turned off, the gas stove can always cook with stable power, avoiding sudden changes in the overall fire power that affect the cooking effect. Utility Model Content
[0004] One purpose of the utility model is to provide a gas valve, which can solve the problems that the multiple fire rings of the existing burner cannot adjust the fire power independently, the heating area cannot be changed, and the problem that stable power operation cannot be maintained when the fire power of each of the multiple fire rings is adjusted separately.
[0005] To achieve this purpose, the present invention adopts the following technical solutions:
[0006] A gas valve is provided, comprising a valve body and a valve core rotatably arranged in the valve body, the valve body being provided with a central air outlet, a middle ring air outlet and an outer ring air outlet, the valve core being provided with a main air passage and a central air inlet, a middle ring air inlet and an outer ring air inlet all connected to the main air passage, the central air inlet being able to be connected to the central air outlet to form a first passage, the middle ring air inlet being able to be connected to the middle ring air outlet to form a second passage, the outer ring air inlet being able to be connected to the outer ring air outlet to form a third passage, the cross-sectional areas of the first passage, the second passage and the third passage being all variable and capable of being selectively conducted respectively; within a preset rotation angle range of the valve core, the sum of the cross-sectional areas of the first passage, the second passage and the third passage remains unchanged.
[0007] In one of the embodiments, along the axial direction of the valve body, the central air outlet hole, the middle ring air outlet hole and the outer ring air outlet hole are spaced apart, and along the axial direction of the valve core, the central air inlet hole, the middle ring air inlet hole and the outer ring air inlet hole are spaced apart; as the valve core rotates, the central air outlet hole and the central air inlet hole have a staggered state and an overlapping state, the middle ring air outlet hole and the middle ring air inlet hole have a staggered state and an overlapping state, and the outer ring air outlet hole and the outer ring air inlet hole have a staggered state and an overlapping state.
[0008] In one embodiment, when the valve core is in an initial state, the first channel, the second channel and the third channel are not connected; and / or,
[0009] When the valve core rotates, the first passage always remains open.
[0010] In one embodiment, when the valve core is located within the preset rotation angle range, the sum of the cross-sectional areas of the first channel, the second channel and the third channel is S1; when the rotation angle of the valve core is less than the preset rotation angle range, the sum of the cross-sectional areas of the first channel, the second channel and the third channel is S2; when the rotation angle of the valve core is greater than the preset rotation angle range, the sum of the cross-sectional areas of the first channel, the second channel and the third channel is S3, S2<S1, and S3<S1.
[0011] Another object of the utility model is to provide a gas stove, which has a gas valve that can independently adjust the firepower and heating area of multiple fire rings of the gas stove, so as to maintain stable power operation when the firepower of each of the multiple fire rings is adjusted separately, ensure the taste of cooked food, and enhance the user experience.
[0012] To achieve this purpose, the utility model adopts the following technical solutions on the other hand:
[0013] A gas stove is provided, comprising a gas valve as described above, the gas stove also comprising a burner and an air intake pipe group, one end of the air intake pipe group is connected to the burner, and the other end is connected to the gas valve, the burner is provided with a central fire hole, a middle ring fire hole and an outer ring fire hole which are concentrically and spaced apart, and the first channel, the second channel and the third channel of the gas valve are used to control the gas flow of the central fire hole, the middle ring fire hole and the outer ring fire hole, respectively.
[0014] In one embodiment, when the valve core of the gas valve rotates counterclockwise from the initial state, the central fire hole, the middle ring fire hole and the outer ring fire hole are ignited in sequence, and when the valve core rotates clockwise from the terminal state, the outer ring fire hole and the middle ring fire hole are ignited in sequence; and / or,
[0015] The air inlet pipe group includes a first air inlet pipe, a second air inlet pipe and a third air inlet pipe. The two ends of the first air inlet pipe are respectively connected to the central air outlet hole and the central fire hole of the gas valve, the two ends of the second air inlet pipe are respectively connected to the middle ring air outlet hole and the middle ring fire hole of the gas valve, and the two ends of the third air inlet pipe are respectively connected to the outer ring air outlet hole and the outer ring fire hole of the gas valve.
[0016] In one embodiment, the middle ring fire hole includes a first middle ring fire hole and a second middle ring fire hole, and the outer ring fire hole includes a first outer ring fire hole and a second outer ring fire hole, and along the radial direction of the burner, the first middle ring fire hole, the first outer ring fire hole, the second middle ring fire hole and the second outer ring fire hole are arranged in sequence from inside to outside.
[0017] In one embodiment, the burner includes a center fire cover, a middle ring fire cover and an outer ring fire cover which are concentrically and spaced apart, the center fire hole ring is arranged on the circumference of the center fire cover, the first middle ring fire hole and the first outer ring fire hole are respectively arranged on the inner circumference and outer circumference of the middle ring fire cover, and the second middle ring fire hole and the second outer ring fire hole are respectively arranged on the inner circumference and outer circumference of the outer ring fire cover.
[0018] In one embodiment, the burner is provided with a first ignition needle and a second ignition needle, the first ignition needle is provided between the central fire cover and the middle ring fire cover, and the second ignition needle is provided between the middle ring fire cover and the outer ring fire cover.
[0019] In one embodiment, the gas stove also includes a rotation angle detection component and an ignition control component, the rotation angle detection component is communicatively connected to the ignition control component, the ignition control component is used to control the action of the first ignition needle or the second ignition needle, and the rotation angle detection component is used to detect the rotation direction of the valve core to activate the first ignition needle or the second ignition needle.
[0020] Beneficial effects of the utility model:
[0021] The gas valve provided by the utility model has a central air inlet hole on the valve core that can be connected to the central air outlet hole on the valve body to form a first channel, a middle ring air inlet hole can be connected to the middle ring air outlet hole to form a second channel, and an outer ring air inlet hole can be connected to the outer ring air outlet hole to form a third channel. The cross-sectional areas of the first channel, the second channel and the third channel are all variable, and the three channels can be selectively conducted respectively, so that the burner forms different combustion areas to meet the combustion area requirements under different cooking operations. The conduction of the first channel is due to the central air inlet hole overlapping with the central air outlet hole as the valve core rotates, and this overlap is an overlap along the radial direction of the valve body. When the central air inlet hole and the central air outlet hole are staggered and not overlapped, the first channel is not conducted, and the cross-sectional area of the first channel is zero at this time, and the corresponding fire hole does not burn; and as the valve core rotates, the overlapping area of the central air inlet hole and the central air outlet hole changes, so that the cross-sectional area of the first channel changes, thereby changing the firepower of the corresponding fire hole. Similarly, the second channel and the third channel also control the firepower of the fire hole and whether it burns through the above process. As the valve core rotates, the sum of the cross-sectional areas of the first channel, the second channel and the third channel remains constant within the preset rotation angle range. That is, if the cross-sectional area of one of the three channels decreases or becomes zero, the cross-sectional areas of one or two of the remaining two channels increase accordingly, so that the combustion power of the entire gas valve remains consistent. Even if the user selects the combustion area or adjusts the fire power of different fire rings, there will be no sudden change in the overall fire power, thus avoiding affecting the cooking effect.
[0022] The gas stove provided by the utility model includes the above-mentioned gas valve, and the burner thereof is provided with a central fire hole, a middle ring fire hole and an outer ring fire hole which are concentrically and spaced apart, and the first channel, the second channel and the third channel of the gas valve are used to control the gas flow of the central fire hole, the middle ring fire hole and the outer ring fire hole respectively. By adjusting the cross-sectional area of the first channel, the second channel and the third channel respectively and selectively conducting, the firepower of the central fire hole, the middle ring fire hole and the outer ring fire hole, as well as the combustion area of the burner are adjusted to meet the different heating state requirements of the stove under different cooking operations. Moreover, in the above-mentioned adjustment process, the burner can achieve that the combustion power of the central fire hole, the middle ring fire hole and the outer ring fire hole is always consistent within the preset rotation angle range, avoiding the sudden change of the overall firepower, ensuring the taste of the cooked food, and improving the reliability of the use of the gas stove. BRIEF DESCRIPTION OF THE DRAWINGS
[0023] Figure 1 It is a structural schematic diagram of a gas valve provided in Embodiment 1 of the utility model;
[0024] Figure 2 This is a top view of the structure of the valve body provided in the first embodiment of the utility model;
[0025] Figure 3 It is a structural schematic diagram of the valve core provided in the first embodiment of the utility model;
[0026] Figure 4 It is a schematic diagram of the expansion of the first channel area, the second channel area and the cross-sectional area of the third channel provided in the first embodiment of the present utility model;
[0027] Figure 5 It is a structural schematic diagram of a gas stove provided by Embodiment 2 of the present utility model;
[0028] Figure 6 This is a top view of the structure of the burner provided in the second embodiment of the utility model;
[0029] Figure 7 It is a schematic diagram of the gear position firepower change of the gas stove provided in the third embodiment of the utility model.
[0030] In the figure:
[0031] 1. Valve body; 11. Central air outlet; 12. Middle ring air outlet; 13. Outer ring air outlet; 2. Valve core; 21. Central air inlet; 22. Middle ring air inlet; 23. Outer ring air inlet; 24. Main airway;
[0032] 10, first channel; 20, second channel; 30, third channel;
[0033] 100, burner; 101, center fire hole; 102, center ring fire hole; 1021, first center ring fire hole; 1022, second center ring fire hole; 103, outer ring fire hole; 1031, first outer ring fire hole; 1032, second outer ring fire hole; 104, center fire cover; 105, center ring fire cover; 106, outer ring fire cover; 200, intake pipe group; 201, first intake pipe; 202, second intake pipe; 203, third intake pipe; 300, first ignition needle; 400, second ignition needle; 500, rotation angle detection component; 600, ignition control component; 700, knob. DETAILED DESCRIPTION
[0034] The present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are only used to explain the present invention, rather than to limit the present invention. It should also be noted that, for ease of description, only the parts related to the present invention, rather than all structures, are shown in the accompanying drawings.
[0035] In the description of the present invention, unless otherwise clearly specified and limited, the terms "connected", "connected", and "fixed" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.
[0036] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.
[0037] In the description of this embodiment, the terms "upper", "lower", "left", "right" and other directions or positional relationships are based on the directions or positional relationships shown in the drawings, and are only for the convenience of description and simplified operation, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation of the present invention. In addition, the terms "first" and "second" are only used to distinguish in the description and have no special meaning.
[0038] Embodiment 1
[0039] like Figures 1 to 4 As shown, this embodiment provides a gas valve, which includes a valve body 1 and a valve core 2 rotatably arranged in the valve body 1, and the valve body 1 is provided with a central air outlet hole 11, a middle ring air outlet hole 12 and an outer ring air outlet hole 13. The central air outlet hole 11, the middle ring air outlet hole 12 and the outer ring air outlet hole 13 are respectively used to provide gas to different fire holes of a burner 100 (refer to the second embodiment) to form multi-ring fire combustion.
[0040] The valve core 2 is provided with a central air inlet 21, a middle ring air inlet 22, an outer ring air inlet 23 and a main air passage 24. The central air inlet 21, the middle ring air inlet 22 and the outer ring air inlet 23 are all connected to the main air passage 24, and the main air passage 24 is used to connect the gas supply passage. As the valve core 2 rotates, the central air inlet 21 can connect to the central air outlet 11 to form a first passage 10, the middle ring air inlet 22 can connect to the middle ring air outlet 12 to form a second passage 20, and the outer ring air inlet 23 can connect to the outer ring air outlet 13 to form a third passage 30. The gas supply passage provides gas, and through the distribution of the first passage 10, the second passage 20 and the third passage 30, it is provided to different fire holes on the burner 100 to achieve multi-ring fire combustion.
[0041] The cross-sectional areas of the first channel 10, the second channel 20 and the third channel 30 are all variable, and the three can be selectively connected, that is, the first channel 10, the second channel 20 and the third channel 30 can be connected at the same time or any one of them can be connected or any two of them can be connected, so that the burner 100 (reference Figure 5 ) to form different combustion areas to meet the combustion area requirements under different cooking operations. The conduction of the first channel 10 is due to the central air inlet hole 21 rotating with the valve core 2 until the central air inlet hole 21 overlaps with the central air outlet hole 11. This overlap is an overlap along the radial direction of the valve body 1. When the central air inlet hole 21 and the central air outlet hole 11 are staggered and not overlapped, the first channel 10 is not conducted. At this time, the cross-sectional area of the first channel 10 is zero, and its corresponding fire hole does not burn; and as the valve core 2 rotates, the overlapping area of the central air inlet hole 21 and the central air outlet hole 11 changes, causing the cross-sectional area of the first channel 10 to change, thereby changing the firepower of the corresponding fire hole. Similarly, the second channel 20 and the third channel 30 also control the firepower of the fire hole and whether it burns through the above process.
[0042] As the valve core 2 rotates, within the preset rotation angle range, the sum of the cross-sectional areas of the first channel 10, the second channel 20 and the third channel 30 remains unchanged, that is, if the cross-sectional area of one of the three channels decreases or becomes zero, the cross-sectional areas of one or both of the remaining two channels increase accordingly, so that the combustion power of the entire gas valve remains consistent. Even if the user selects the combustion area or adjusts the fire power of different fire rings, there will be no sudden change in the overall fire power, thus avoiding affecting the cooking effect.
[0043] It should be noted that the specific value of the sum of the cross-sectional areas can be set according to the performance of the gas stove. When the sum of the cross-sectional areas is at this value, the gas stove can reach the rated heat load, or the gas stove can only achieve part of the heat load. This embodiment does not make any specific limitation.
[0044] Likewise, this embodiment does not limit the preset rotation angle range. The rotation of the valve core 2 is controlled by the knob 700 of the gas stove (refer to the second embodiment). The starting angle of the preset rotation angle range can be selected and set according to the performance of the gas stove.
[0045] In order to ensure that the sum of the cross-sectional areas of the three channels remains constant within the preset rotation angle range, the central air outlet 11, the middle ring air outlet 12 and the outer ring air outlet 13 are arranged at intervals along the axial direction of the valve body 1, and the central air inlet 21, the middle ring air inlet 22 and the outer ring air inlet 23 are arranged at intervals along the axial direction of the valve core 2. As the valve core 2 rotates, the central air outlet 11 and the central air inlet 21 have a staggered state and an overlapping state, the middle ring air outlet 12 and the middle ring air inlet 22 have a staggered state and an overlapping state, and the outer ring air outlet 13 and the outer ring air inlet 23 have a staggered state and an overlapping state. When the central air outlet 11 and the central air inlet 21 are in an interlaced state, the cross-sectional area of the first channel 10 is zero; when the central air outlet 11 and the central air inlet 21 are in an overlapping state, the first channel 10 is connected, and the cross-sectional area of the connection changes with the rotation of the valve core 2 to achieve the fire power adjustment of the corresponding fire hole; when the middle ring air outlet 12 and the middle ring air inlet 22 are in an interlaced state, the cross-sectional area of the second channel 20 is zero; when the middle ring air outlet 12 and the middle ring air inlet 22 are in an overlapping state, the second channel 20 is connected, and the cross-sectional area of the connection changes with the rotation of the valve core 2 to achieve the fire power adjustment of the corresponding fire hole; when the outer ring air outlet 13 and the outer ring air inlet 23 are in an interlaced state, the cross-sectional area of the third channel 30 is zero; when the outer ring air outlet 13 and the outer ring air inlet 23 are in an overlapping state, the third channel 30 is connected, and the cross-sectional area of the connection changes with the rotation of the valve core 2 to achieve the fire power adjustment of the corresponding fire hole.
[0046] This embodiment does not limit the specific shape of the above-mentioned pores, and is not limited to the attached drawings of this embodiment. Figure 1The central air outlet hole 11, the middle ring air outlet hole 12 and the outer ring air outlet hole 13 indicated in the figure extend from the inside of the valve body 1 to the outside, so as to facilitate the connection of the air pipe.
[0047] Optionally, when the valve core 2 is in the initial state, the first channel 10, the second channel 20 and the third channel 30 are not connected, and the gas valve is in a closed state to avoid gas leakage, which is safer. The valve core 2 starts to rotate from the initial state to connect the channels to provide gas to the gas stove, meeting the user's habit of turning the knob 700 of the gas stove.
[0048] Optionally, when the valve core 2 is rotating, the first channel 10 is always kept open, so that the fire hole at the center of the burner 100 is always kept burning, which is more in line with common cooking habits.
[0049] In order to realize that the gas stove always works at the rated heat load within the preset rotation angle range, when the valve core 2 is within the preset rotation angle range, the sum of the cross-sectional area of the first channel 10, the cross-sectional area of the second channel 20 and the cross-sectional area of the third channel 30 is S1; when the rotation angle of the valve core 2 is less than the preset rotation angle range, the sum of the cross-sectional area of the first channel 10, the cross-sectional area of the second channel 20 and the cross-sectional area of the third channel 30 is S2; when the rotation angle of the valve core 2 is greater than the preset rotation angle range, the sum of the cross-sectional area of the first channel 10, the cross-sectional area of the second channel 20 and the cross-sectional area of the third channel 30 is S3, S2<S1, and S3<S1. In this way, whether the valve core 2 rotates forward or reverse, as long as it is within the preset rotation angle range, regardless of the combustion area of the burner 100 and the firepower of each multi-ring fire, the gas stove always works at the rated heat load, ensuring that the user can quickly complete cooking. At other angles outside the preset rotation angle range, the gas stove can achieve a slightly smaller firepower to meet the firepower requirements of different cooking stages.
[0050] By setting the respective area sizes of the central air outlet 11, the middle ring air outlet 12 and the outer ring air outlet 13, and the respective area sizes of the central air inlet 21, the middle ring air inlet 22 and the outer ring air inlet 23, and the relative positions, it can be achieved that within the preset rotation angle range, the sum of the cross-sectional areas of the first channel 10, the second channel 20 and the third channel 30 always remains unchanged. The initial state of the valve core 2 is 0°, the terminal state is 270°, and when rotating counterclockwise, the preset rotation angle range is 90° to 180°. Figure 4, a schematic diagram of the cross-sectional area of the first channel 10, the second channel 20 and the third channel 30 is shown in FIG. When the valve core 2 is in the range of 0° to 30°, the cross-sectional area of the first channel 10 gradually increases until it rotates to 30°, the second channel 20 is conductive, and the third channel 30 is always in a non-conductive state; when the valve core 2 is in the range of 30° to 90°, the cross-sectional areas of the first channel 10 and the second channel 20 gradually increase, and the third channel 30 is always in a non-conductive state; when the valve core 2 is in the preset rotation angle range of 90° to 180°, the cross-sectional areas of the first channel 10, the second channel 20 and the third channel 30 change respectively, but the sum of the cross-sectional areas of the first channel 10, the second channel 20 and the third channel 30 remains unchanged. When the valve core 2 is in the range of 180° to 270°, the first channel 10 always remains conductive and the cross-sectional area continues to decrease, the second channel 20 is not conductive, and the cross-sectional area of the third channel 30 gradually decreases until it is not conductive. The above angle values are for illustration only and are not intended to be limiting.
[0051] Embodiment 2
[0052] The utility model provides a gas stove in the second embodiment. Figure 5 and Figure 6 As shown, the gas stove includes the gas valve in the above-mentioned embodiment 1. The gas stove also includes a burner 100 and an air inlet pipe group 200. One end of the air inlet pipe group 200 is connected to the burner 100, and the other end is connected to the gas valve. The burner 100 is provided with a central fire hole 101, a middle ring fire hole 102 and an outer ring fire hole 103 that are concentric and spaced apart. The first channel 10, the second channel 20 and the third channel 30 of the gas valve are used to control the gas flow of the central fire hole 101, the middle ring fire hole 102 and the outer ring fire hole 103 respectively. By adjusting the cross-sectional area of the first channel 10, the second channel 20 and the third channel 30 and selectively conducting them, the firepower of the central fire hole 101, the middle ring fire hole 102 and the outer ring fire hole 103, as well as the combustion area of the burner 100 are adjusted to meet the different heating state requirements of the stove under different cooking operations. Moreover, during the above-mentioned adjustment process, the burner 100 can ensure that the combustion power of the center fire hole 101, the middle ring fire hole 102 and the outer ring fire hole 103 remain consistent within the preset rotation angle range, thereby avoiding sudden changes in the overall firepower, ensuring the taste of cooked food, and improving the reliability of the gas stove.
[0053] The gas stove is also provided with a knob 700 , which is connected to the valve core 2 . The user turns the knob 700 to realize the valve core 2 and further sets the combustion state of the burner 100 .
[0054] Optionally, when the valve core 2 of the gas valve rotates counterclockwise from the initial state, the central fire hole 101, the middle ring fire hole 102 and the outer ring fire hole 103 are ignited in sequence, and when the valve core 2 rotates clockwise from the terminal state, the outer ring fire hole 103 and the middle ring fire hole 102 are ignited in sequence. Since after the central fire hole 101 is ignited, the first channel 10 remains conductive during the rotation of the valve core 2, so the central fire hole 101 is always in a burning state; when the valve core 2 rotates counterclockwise from the initial state to the terminal state, only the central fire hole 101 remains burning, and the second channel 20 and the third channel 30 remain non-conductive. At this time, when the valve core 2 is reversely screwed and rotated clockwise, the outer ring fire hole 103 and the middle ring fire hole 102 are ignited in sequence. This setting allows the user to select different combustion areas by controlling the rotation of the valve core 2. For example, when the center fire hole 101 and the middle ring fire hole 102 need to burn, open the gas valve and turn the valve core 2 counterclockwise according to operating habits to ignite the center fire hole 101 and the middle ring fire hole 102 in sequence; if you continue to turn it clockwise, the outer ring fire hole 103 will be ignited; if the center fire hole 101 and the outer ring fire hole 103 need to burn at this time, turn the valve core 2 to the terminal state and turn it counterclockwise to ignite the outer ring fire hole 103. If you continue to turn it clockwise, the middle ring fire hole 102 will be ignited.
[0055] The air intake pipe group 200 includes a first air intake pipe 201, a second air intake pipe 202 and a third air intake pipe 203. The two ends of the first air intake pipe 201 are respectively connected to the central air outlet hole 11 and the central fire hole 101 of the gas valve, the two ends of the second air intake pipe 202 are respectively connected to the middle ring air outlet hole 12 and the middle ring fire hole 102 of the gas valve, and the two ends of the third air intake pipe 203 are respectively connected to the outer ring air outlet hole 13 and the outer ring fire hole 103 of the gas valve; the first air intake pipe 201, the second air intake pipe 202 and the third air intake pipe 203 are independent of each other to avoid the influence of gas leakage between the first channel 10, the second channel 20 and the third channel 30.
[0056] Optionally, the middle ring fire hole 102 includes a first middle ring fire hole 1021 and a second middle ring fire hole 1022, and the outer ring fire hole 103 includes a first outer ring fire hole 1031 and a second outer ring fire hole 1032. Along the radial direction of the burner 100, the first middle ring fire hole 1021, the first outer ring fire hole 1031, the second middle ring fire hole 1022 and the second outer ring fire hole 1032 are arranged in sequence from the inside to the outside. In this way, the combustion of five rings of fire can be achieved through three air intake pipes, and the first middle ring fire hole 1021 and the second middle ring fire hole 1022 controlled by the second channel 20 are staggered with the first outer ring fire hole 1031 and the second outer ring fire hole 1032 controlled by the third channel 30, so that the combustion areas formed by the middle ring fire hole 102 and the outer ring fire hole 103 can be dispersed, so that the firepower distribution is more uniform.
[0057] In order to realize the above-mentioned five-ring fire arrangement, the burner 100 includes a central fire cover 104, a middle ring fire cover 105 and an outer ring fire cover 106 which are concentrically and spaced apart, the central fire hole 101 is arranged on the circumference of the central fire cover 104, the first middle ring fire hole 1021 and the first outer ring fire hole 1031 are respectively arranged on the inner circumference and outer circumference of the middle ring fire cover 105, the second middle ring fire hole 1022 and the second outer ring fire hole 1032 are respectively arranged on the inner circumference and outer circumference of the outer ring fire cover 106.
[0058] In order to realize the above-mentioned different ignition sequence control of the five-ring fire, the burner 100 is provided with a first ignition needle 300 and a second ignition needle 400. The first ignition needle 300 is arranged between the central fire cover 104 and the middle ring fire cover 105, and the second ignition needle 400 is arranged between the middle ring fire cover 105 and the outer ring fire cover 106. The first ignition needle 300 is used to ignite the central fire hole 101 and the first middle ring fire hole 1021, and the second ignition needle 400 is used to ignite the first outer ring fire hole 1031 and the second middle ring fire hole 1022. The second middle ring fire hole 1022 can transfer the combustion to the second outer ring fire hole 1032. In this way, any one of the central fire hole 101, the middle ring fire hole 102 and the outer ring fire hole 103 can be quickly ignited under different combustion areas of the burner 100. For example, when the valve core 2 rotates counterclockwise from the initial state, the central fire hole 101, the middle ring fire hole 102 and the outer ring fire hole 103 are ignited in sequence. At this time, the first ignition needle 300 is used to ignite the central fire hole 101, the first middle ring fire hole 1021 and the second middle ring fire hole 1022 in sequence, and then the flame transmitted by the middle ring fire hole 102 ignites the outer ring fire hole 103; when the valve core 2 rotates clockwise from the terminal state, the outer ring fire hole 103 and the middle ring fire hole 102 need to be ignited in sequence. At this time, the central fire hole 101 cannot transmit flame to ignite the outer ring fire hole 103, and the second ignition needle 400 needs to be actuated to ignite the first outer ring fire hole 1031 and the second outer ring fire hole 1032, and then the flame transmitted by the first outer ring fire hole 1031 ignites the first middle ring fire hole 1021, and the flame transmitted by the second outer ring fire hole 1032 ignites the second middle ring fire hole 1022.
[0059] Optionally, the gas stove further comprises a rotation angle detection member 500 and an ignition control member 600. The rotation angle detection member 500 is communicatively connected to the ignition control member 600. The ignition control member 600 is used to control the action of the first ignition needle 300 or the action of the second ignition needle 400. The rotation angle detection member 500 is used to detect the rotation direction of the valve core 2 so as to cause the first ignition needle 300 to act or the second ignition needle 400 to act. Through the detection of the rotation angle detection member 500, the action of the first ignition needle 300 or the action of the second ignition needle 400 can be accurately determined, so that the ignition action matches the ventilation state of the central fire hole 101, the middle ring fire hole 102, and the outer ring fire hole 103. The principle that the rotation angle detection member 500 controls the action of the first ignition needle 300 or the action of the second ignition needle 400 through the ignition control member 600 is a prior art in the art, and will not be described in detail in this embodiment.
[0060] Embodiment 3
[0061] The third embodiment of the present invention provides a method for setting the gear firepower of a gas stove, which controls the gear firepower of the gas stove in the second embodiment, making it convenient for users to adjust the gas stove with five-ring fire to different combustion areas and firepower sizes of different fire rings, and can quickly adjust to a preset rotation angle range, so that the gas stove always works at the rated heat load.
[0062] In the third embodiment, the initial state of the valve core 2 is 0°, the initial state is set to OFF gear, the terminal state is 270°, each 30° is a gear, and there are nine gears in total; and when rotating counterclockwise, the preset rotation angle range is 90° to 180°, as shown in the attached figure. Figure 7 As shown; attached Figure 7 In the figure, ring 1 is formed by the central fire hole 101 , ring 2 is formed by the first middle ring fire holes 1021 , ring 3 is formed by the first outer ring fire holes 1031 , ring 4 is formed by the second middle ring fire holes 1022 , and ring 5 is formed by the second outer ring fire holes 1032 .
[0063] The following table shows the nine fire power levels of the gas stove:
[0064]
[0065] Among them, the four gears from the third gear to the sixth gear are preset rotation angle ranges. When the user controls the valve core 2 to rotate to the four gears through the knob 700 of the gas stove, three different combustion areas can be achieved, and the firepower of the five-ring fire is also changing between different gears. However, in these four gears, the heat load achieved by the five-ring fire is constant. This constancy is achieved by the sum of the cross-sectional areas of the first channel 10, the second channel 20 and the third channel 30 always remaining unchanged.
[0066] It should be noted that the above-mentioned number of gear settings and the firepower settings of the five-ring fire at different gears are only examples. The number of gear settings and the firepower of the five-ring fire achieved at each gear can be changed according to the actual use needs of the user, which is within the protection scope of this application.
[0067] Obviously, the above embodiments of the present invention are merely examples for the purpose of clearly illustrating the present invention, and are not intended to limit the implementation methods of the present invention. For those skilled in the art, various obvious changes, readjustments and substitutions can be made without departing from the scope of protection of the present invention. It is not necessary and impossible to list all implementation methods here. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention shall be included in the scope of protection of the claims of the present invention.
Claims
1. A gas valve, comprising a valve body (1) and a valve core (2) rotatably arranged in the valve body (1), characterized in that: The valve body (1) is provided with a central air outlet hole (11), a middle ring air outlet hole (12) and an outer ring air outlet hole (13); the valve core (2) is provided with a main air passage (24) and a central air inlet hole (21), a middle ring air inlet hole (22) and an outer ring air inlet hole (23) all connected to the main air passage (24); the central air inlet hole (21) can be connected to the central air outlet hole (11) to form a first passage (10); the middle ring air inlet hole (22) can be connected to the middle ring air outlet hole (12) to form a second passage (11). The outer ring air inlet hole (23) is connected to the outer ring air outlet hole (13) to form a third channel (30); the cross-sectional areas of the first channel (10), the second channel (20) and the third channel (30) are all variable and can be selectively conducted respectively; when the valve core (2) is within a preset rotation angle range, the sum of the cross-sectional areas of the first channel (10), the second channel (20) and the third channel (30) remains unchanged.
2. The gas valve according to claim 1, characterized in that: Along the axial direction of the valve body (1), the central air outlet hole (11), the middle ring air outlet hole (12) and the outer ring air outlet hole (13) are arranged at intervals, and along the axial direction of the valve core (2), the central air inlet hole (21), the middle ring air inlet hole (22) and the outer ring air inlet hole (23) are arranged at intervals; as the valve core (2) rotates, the central air outlet hole (11) and the central air inlet hole (21) have a staggered state and an overlapping state, the middle ring air outlet hole (12) and the middle ring air inlet hole (22) have a staggered state and an overlapping state, and the outer ring air outlet hole (13) and the outer ring air inlet hole (23) have a staggered state and an overlapping state.
3. The gas valve according to claim 1, characterized in that: When the valve core (2) is in the initial state, the first channel (10), the second channel (20) and the third channel (30) are not connected; and / or, When the valve core (2) rotates, the first channel (10) always remains open.
4. The gas valve according to claim 1, characterized in that: When the valve core (2) is located within the preset rotation angle range, the sum of the cross-sectional areas of the first channel (10), the second channel (20) and the third channel (30) is S1; when the rotation angle of the valve core (2) is less than the preset rotation angle range, the sum of the cross-sectional areas of the first channel (10), the second channel (20) and the third channel (30) is S2; when the rotation angle of the valve core (2) is greater than the preset rotation angle range, the sum of the cross-sectional areas of the first channel (10), the second channel (20) and the third channel (30) is S3, S2<S1, and S3<S1.
5. A gas stove, characterized in that: The gas stove comprises a gas valve as claimed in any one of claims 1 to 4, and further comprises a burner (100) and an air inlet pipe group (200), one end of the air inlet pipe group (200) is connected to the burner (100), and the other end is connected to the gas valve, the burner (100) is provided with a central fire hole (101), a middle ring fire hole (102) and an outer ring fire hole (103) which are concentrically and spaced apart, and the first channel (10), the second channel (20) and the third channel (30) of the gas valve are respectively used to control the gas flow of the central fire hole (101), the middle ring fire hole (102) and the outer ring fire hole (103).
6. The gas stove according to claim 5, characterized in that: When the valve core (2) of the gas valve rotates counterclockwise from an initial state, the central fire hole (101), the middle ring fire hole (102) and the outer ring fire hole (103) are ignited in sequence, and when the valve core (2) rotates clockwise from a terminal state, the outer ring fire hole (103) and the middle ring fire hole (102) are ignited in sequence; and / or, The air intake pipe group (200) comprises a first air intake pipe (201), a second air intake pipe (202) and a third air intake pipe (203); the two ends of the first air intake pipe (201) are respectively connected to the central air outlet hole (11) of the gas valve and the central fire hole (101); the two ends of the second air intake pipe (202) are respectively connected to the middle ring air outlet hole (12) of the gas valve and the middle ring fire hole (102); and the two ends of the third air intake pipe (203) are respectively connected to the outer ring air outlet hole (13) of the gas valve and the outer ring fire hole (103).
7. The gas stove according to claim 5, characterized in that: The middle ring fire hole (102) comprises a first middle ring fire hole (1021) and a second middle ring fire hole (1022), and the outer ring fire hole (103) comprises a first outer ring fire hole (1031) and a second outer ring fire hole (1032), and along the radial direction of the burner (100), the first middle ring fire hole (1021), the first outer ring fire hole (1031), the second middle ring fire hole (1022) and the second outer ring fire hole (1032) are arranged in sequence from inside to outside.
8. The gas stove according to claim 7, characterized in that: The burner (100) comprises a central fire cover (104), a middle ring fire cover (105) and an outer ring fire cover (106) which are concentrically and spaced apart from each other; the central fire hole (101) is arranged around the central fire cover (104); the first middle ring fire hole (1021) and the first outer ring fire hole (1031) are arranged on the inner and outer sides of the central ring fire cover (105), respectively; the second middle ring fire hole (1022) and the second outer ring fire hole (1032) are arranged on the inner and outer sides of the outer ring fire cover (106), respectively.
9. The gas stove according to claim 8, characterized in that: The burner (100) is provided with a first ignition needle (300) and a second ignition needle (400), wherein the first ignition needle (300) is provided between the central fire cover (104) and the middle ring fire cover (105), and the second ignition needle (400) is provided between the middle ring fire cover (105) and the outer ring fire cover (106).
10. The gas stove according to claim 9, characterized in that: The gas stove further comprises a rotation angle detection component (500) and an ignition control component (600), wherein the rotation angle detection component (500) is communicatively connected to the ignition control component (600), and the ignition control component (600) is used to control the movement of the first ignition needle (300) or the movement of the second ignition needle (400), and the rotation angle detection component (500) is used to detect the rotation direction of the valve core (2) so as to cause the first ignition needle (300) to move or the second ignition needle (400) to move.