Gas stove

Abstract

The utility model discloses a gas stove, relates to the technical field of stoves, and aims to solve the problem that after a user cleans a fire cover of the gas stove, the fire cover is easily placed on a fire distributor in a staggered manner. The gas stove comprises a burner, a fire distributor, an inner fire cover and an outer fire cover. An inner ring gas mixing chamber and an outer ring gas mixing chamber are formed in the furnace end. The fire distributor covers the furnace end, and an inner gas distribution chamber and an outer gas distribution chamber are formed. The inner gas distribution chamber is communicated with the inner ring gas mixing chamber, and the outer gas distribution chamber is communicated with the outer ring gas mixing cavity. The inner fire cover covers the inner gas distribution chamber, and a first positioning structure is formed on the side, close to the fire distributor, of the inner fire cover. The outer fire cover covers the outer gas distribution chamber, and a second positioning structure is formed on the side, close to the fire distributor, of the outer fire cover. A third positioning structure and a fourth positioning structure are formed on the side, close to the inner fire cover and the outer fire cover, of the fire distributor. The third positioning structure is connected with the first positioning structure, and the fourth positioning structure is connected with the second positioning structure. The gas stove is used for heating cookware.

Description

Technical Field

[0001] The utility model relates to the technical field of stoves, in particular to a gas stove. Background Art

[0002] Cooking utensils will produce oil smoke during the cooking process. During long-term use, the oil stains condensed from the oil smoke and the food soup overflowing from the cooking utensils during the cooking process will remain on the gas stove, affecting the appearance and cleanliness of the gas stove.

[0003] When cleaning a gas stove, users often remove the oil-contaminated gas stove cover separately for cleaning, and then put the cover back on the fire distributor after cleaning.

[0004] Due to users' lack of understanding of the structure of gas stoves, installation errors may occur during the installation process, such as not properly placing the fire cover on the burner. In this state, when gas is input and ignited, it is very easy to cause flame abnormality or even fire leakage. Utility Model Content

[0005] The utility model aims to provide a gas stove, aiming to solve the problem that the user may misplace the fire cover on the fire distributor after cleaning the fire cover.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] An embodiment of the present application provides a gas stove, comprising a burner, a flame divider, an inner fire cover and an outer fire cover. The burner is formed with an inner ring gas mixing chamber and an outer ring gas mixing chamber. The flame divider cover is arranged on the burner, and is formed with an inner gas divider chamber and an outer gas divider chamber. The inner gas divider chamber is communicated with the inner ring gas mixing chamber, and the outer gas divider chamber is communicated with the outer ring gas mixing chamber. The inner fire cover is arranged on the inner gas divider chamber, and a first positioning structure is formed on the side of the inner fire cover close to the flame divider. The outer fire cover is arranged on the outer gas divider chamber, and a second positioning structure is formed on the side of the outer fire cover close to the flame divider. Particularly, a third positioning structure and a fourth positioning structure are formed on the side of the flame divider close to the inner fire cover and the outer fire cover. The third positioning structure is connected to the first positioning structure, and the fourth positioning structure is connected to the second positioning structure.

[0008] In the gas stove provided by the embodiments of the present application, external gas and air are mixed and delivered to the inner and outer ring mixing chambers of the burner head, respectively. The mixed gas delivered to the inner ring mixing chamber passes through the inner air separation chamber connected thereto, and finally flows out through the inner gas outlet of the inner fire cover provided over the inner gas separation chamber. The mixed gas delivered to the outer ring mixing chamber passes through the outer air separation chamber connected thereto, and finally flows out through the outer gas outlet of the outer fire cover provided over the outer gas separation chamber.

[0009] The first positioning structure of the inner fire cover near the fire divider is connected to the third positioning structure of the fire divider near the inner fire cover, fixing the relative position of the inner fire cover and the fire divider. The second positioning structure of the outer fire cover near the fire divider is connected to the fourth positioning structure of the fire divider near the outer fire cover, fixing the relative position of the outer fire cover and the fire divider, thereby fastening the inner fire cover, the outer fire cover and the fire divider into a whole. When cleaning the inner fire cover and the outer fire cover, they can be disassembled together with the fire divider for cleaning. After cleaning, the fire divider can be installed, avoiding the problem of users easily misplacing the fire cover on the fire divider.

[0010] In some embodiments, the number of the second positioning structure and the fourth positioning structure is plural and greater than two. One second positioning structure is connected to one fourth positioning structure.

[0011] Among them, multiple second positioning structures are arranged at intervals along the circumference of the outer fire cover, and the angle formed between two adjacent second positioning structures among the multiple second positioning structures and the axis of the outer fire cover includes a first angle and a second angle, and the sizes of the first angle and the second angle are different.

[0012] In some embodiments, the second positioning structure defines a first connection hole, and the fourth positioning structure defines a second connection hole. The gas stove further includes a first fastener, which passes through the second connection hole and extends into the first connection hole to be threadedly connected to the first connection hole.

[0013] In some embodiments, the first positioning structure is formed with a first positioning portion. The third positioning structure is formed with a second positioning portion. The first positioning portion is located outside the axis of the inner fire cover, and the first positioning portion is connected to the second positioning portion.

[0014] In some embodiments, the second positioning portion is a hole structure. The first positioning portion extends into the second positioning portion and is connected to the second positioning portion.

[0015] In some embodiments, the first positioning structure further defines a third connection hole, the third positioning structure further defines a fourth connection hole, and the gas stove further includes a second fastener, the second fastener being passed through the fourth connection hole and extending into the third connection hole to be threadedly connected to the third connection hole.

[0016] In some embodiments, the third connecting hole passes through the axis of the inner fire cover, and the fourth connecting hole passes through the axis of the ignition distributor.

[0017] In some embodiments, the inner fire cover includes an inner fire cover top wall and an inner fire cover side wall. The inner fire cover side wall is located on a side of the inner fire cover top wall near the fire divider, surrounds the inner fire cover top wall, and is connected to the inner fire cover top wall. An end of the inner fire cover side wall away from the inner fire cover top wall abuts against the fire divider.

[0018] Wherein, the first positioning structure is formed on the top wall of the inner fire cover, and is located on the side where the side wall of the inner fire cover is located.

[0019] In some embodiments, the first positioning structure is a protruding structure.

[0020] In some embodiments, the ignition distributor has an inner vent hole connected to the inner annular gas mixing chamber and the inner gas separation chamber. The third positioning structure includes a connecting portion and a plurality of legs. The connecting portion has a fourth connecting hole. The connecting portion and the inner vent hole are spaced apart and arranged opposite to each other.

[0021] The plurality of legs are arranged along the circumference of the inner vent hole, one end of the plurality of legs is connected to the outer periphery of the vent hole at intervals, and the other end extends in a direction away from the ignition distributor and close to the connecting portion, and is connected to the connecting portion. A second positioning portion is formed on one of the legs. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0023] Figure 1 A schematic diagram of the structure of a gas stove provided in an embodiment of the present application;

[0024] Figure 2 This is one of the structural schematic diagrams of a burner provided in an embodiment of the present application;

[0025] Figure 3 This is a second structural diagram of a burner provided in an embodiment of the present application;

[0026] Figure 4 A schematic structural diagram of an ejector tube provided in an embodiment of the present application;

[0027] Figure 5 This is one of the structural schematic diagrams of a burner provided in an embodiment of the present application;

[0028] Figure 6 This is a second structural diagram of a burner provided in an embodiment of the present application;

[0029] Figure 7 This is one of the structural schematic diagrams of an inner fire cover provided in an embodiment of the present application;

[0030] Figure 8 This is a second structural diagram of an inner fire cover provided in an embodiment of the present application;

[0031] Figure 9 This is one of the structural schematic diagrams of an external fire cover provided in an embodiment of the present application;

[0032] Figure 10 This is a second structural diagram of an external fire cover provided in an embodiment of the present application;

[0033] Figure 11 This is a third structural diagram of an external fire cover provided in an embodiment of the present application;

[0034] Figure 12 This is a fourth structural diagram of an external fire cover provided in an embodiment of the present application;

[0035] Figure 13 This is one of the structural schematic diagrams of a fire distributor provided in an embodiment of the present application;

[0036] Figure 14 This is one of the assembly drawings of an inner fire cover and a fire distributor provided in an embodiment of the present application;

[0037] Figure 15 An assembly diagram of an outer fire cover and a fire distributor provided in an embodiment of the present application;

[0038] Figure 16 This is a second structural diagram of a fire distributor provided in an embodiment of the present application;

[0039] Figure 17 This is the second assembly diagram of an inner fire cover and a fire distributor provided in an embodiment of the present application.

[0040] Reference numerals:

[0041] 1000-gas stove;

[0042] 1-burner;

[0043] 11-burner head; 111-inner ring gas mixing chamber; 112-outer ring gas mixing chamber; 1121-annular area; 1122-gas mixing area;

[0044] 12-ignition divider; 121-inner air chamber; 122-outer air chamber; 123-third positioning structure; 1231-second positioning portion; 1232-fourth connecting hole; 1233-connecting portion; 1234-supporting foot; 124-fourth positioning structure; 1241-second connecting hole; 125-inner vent hole; 126-first air channel; 127-second air channel;

[0045] 13-Inner fire cover; 131-First positioning structure; 1311-First positioning portion; 1312-Third connecting hole; 132-Inner fire cover top wall; 133-Inner fire cover side wall; 134-Inner fire outlet hole;

[0046] 14-external fire cover; 141-second positioning structure; 1411-first angle; 1412-second angle; 1413-first connecting hole; 142-external fire hole; 143-side fire hole;

[0047] 15- ejector tube;

[0048] 16- second fastener;

[0049] 17-wind deflector;

[0050] 2-panel; 21-avoidance hole;

[0051] 3- bottom shell; 31- installation cavity. DETAILED DESCRIPTION

[0052] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0053] In the description of the present invention, it should be understood that the terms "upper," "lower," "left," "right," "front," "back," "inner," "outer," and the like, indicating directions or positional relationships, are based on the directions or relative positional relationships shown in the accompanying drawings and are intended solely to facilitate the description of the present invention and simplify the description. They do not indicate or imply that the devices or components referred to must have a specific direction, be constructed, or operate in a specific direction. Therefore, they should not be construed as limitations on the present invention. Unless otherwise specified, the above-mentioned directions may be flexibly set in actual application, provided that the relative positional relationships shown in the accompanying drawings are met.

[0054] The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Therefore, a feature specified as "first" or "second" may explicitly or implicitly include one or more of such features. In the description of this utility model, unless otherwise specified, "plurality" means two or more.

[0055] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," "connected," and "communicated" should be understood broadly. For example, they may refer to fixed connections, detachable connections, or integral connections. They may be directly connected, indirectly connected through an intermediary, or internally connected between two components. Those skilled in the art will understand the specific meanings of these terms in this utility model based on the specific circumstances.

[0056] In the embodiments of the present invention, the terms "comprises," "includes," or any other variations thereof are intended to encompass non-exclusive inclusion, such that a process, article, or device comprising a series of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, article, or device. In the absence of further limitations, an element defined by the phrase "comprising a ..." does not exclude the presence of other identical elements in the process, article, or device comprising the element.

[0057] In the embodiments of the present invention, words such as "exemplary" or "for example" are used to indicate examples, illustrations, or descriptions. Any embodiment or design described as "exemplary" or "for example" in the embodiments of the present invention should not be construed as being preferred or advantageous over other embodiments or designs. Rather, the use of words such as "exemplary" or "for example" is intended to present the relevant concepts in a concrete manner.

[0058] A gas stove is a kitchen appliance that uses a gaseous fuel, such as manufactured gas, natural gas, or liquefied petroleum gas, to heat the cookware. When a gas stove is operating, gas is delivered through the inlet pipe, regulated by the gas valve, and then enters the burner. It mixes with air and is ejected from the flame holes in the burner cap. This mixture is then ignited by the ignition device to form a flame, which is then used to heat the cookware placed on the pot support.

[0059] Cookware produces fumes during cooking. Over time, condensed fumes and spilled food residue can remain on the gas stove, affecting its appearance and cleanliness. More seriously, these residues can clog the flame vents in the burner cap, preventing them from properly discharging mixed gas. This affects the heating temperature of the cookware, compromising the food's texture, and even preventing ignition, which can directly impact the stove's performance.

[0060] When cleaning a gas stove, users often remove the oil-stained burner cover and clean it separately. After cleaning, they replace the burner cover on the burner. Due to a lack of familiarity with the structure of a gas stove, users can misplace the burner cover on the distributor after cleaning it. For example, this can happen when the burner cover, such as a reverse-reverse cover, is not properly placed on the burner.

[0061] If gas is introduced and ignited in this state, it is very likely to cause abnormal flames or even flame leaks. The flame cover is designed to work with the gas nozzle to ensure a proper mixture of gas and air, resulting in a stable and efficient flame. If the flame cover is misplaced, the flame may be too small, too large, erratic, or burn incompletely, affecting cooking results.

[0062] Leaking flames can cause flames to emanate from unintended locations, such as to the side or bottom of the flame cover. Leaking flames not only waste energy but also pose a safety risk to the stove, potentially damaging the cooktop, flame distributor, and other internal components.

[0063] Prolonged improper use may cause irreversible damage to the gas stove's burners, nozzles and other key components, reducing the life of the equipment.

[0064] In severe cases, an incorrectly placed fire cover may result in incomplete combustion, producing harmful gases such as carbon monoxide, or a fire caused by high-temperature leakage, or even cause the glass panel to crack due to concentrated heat, posing a serious safety hazard.

[0065] In order to solve the above problems, the present application provides a gas stove, such as Figure 1 As shown, Figure 1 This is a schematic diagram of the structure of a gas stove 1000 provided in an embodiment of the present application. The gas stove 1000 includes a bottom shell 3, which defines a mounting cavity 31 having an opening. The opening communicates with the mounting cavity 31, allowing other components of the gas stove 1000 to be installed within the mounting cavity 31 of the bottom shell 3. The bottom shell 3 provides support and a certain degree of protection for the components installed within the mounting cavity 31, ensuring the proper operation of the gas stove 1000.

[0066] On this basis, see Figure 1 The gas stove 1000 provided in this application further includes a panel 2, which is disposed over the opening of the bottom shell 3 and is used to seal the mounting cavity 31 of the bottom shell 3. In this way, the panel 2 can prevent debris or food residue dropped during cooking from falling into the mounting cavity 31 of the bottom shell 3, thereby ensuring that other components disposed in the mounting cavity 31 are not damaged or contaminated, further ensuring that the gas stove 1000 can operate normally.

[0067] See also Figure 1 The gas stove 1000 provided in the present application also includes a burner 1. The burner 1 is the core component of the gas stove 1000. In this case, an avoidance notch 21 is further provided on the above-mentioned panel 2. The burner 1 is arranged opposite to the avoidance notch 21 provided on the panel 2, so that the burner 1 can be located within the opening range of the avoidance notch 21 of the panel 2. In this way, when the burner 1 burns fuel to generate a flame, the panel 2 will not block the flame generated by the burner 1 burning fuel, ensuring that the burner 1 can work normally, so that the flame can heat the bottom of the pot, so that the user can cook.

[0068] Among them, Figure 2 As shown, Figure 2 This is a structural schematic diagram of a burner 1 provided in an embodiment of the present application. The burner 1 includes a burner head 11, a flame distributor 12, an inner fire cover 13 and an outer fire cover 14.

[0069] like Figure 3 As shown, Figure 3 This is a schematic diagram of the structure of a burner 1 provided in an embodiment of the present application. The burner head 11 is formed with an inner annular gas mixing chamber 111 and an outer annular gas mixing chamber 112. The ignition divider 12 is mounted on the burner head 11 and is formed with an inner gas separation chamber 121 and an outer gas separation chamber 122. The inner gas separation chamber 121 is connected to the inner annular gas mixing chamber 111, and the outer gas separation chamber 122 is connected to the outer annular gas mixing chamber 112.

[0070] like Figure 2 As shown, the burner provided in the embodiment of the present application also includes an ejector tube 15. The ejector tube 15 is a traditional double-ejector tube parallel split structure. The ejector tube 15 has two pipelines, one of which is connected to the inner ring mixing chamber 111, and the other is connected to the outer ring mixing chamber 112. The ejector tube 15 has a gradually shrinking contraction section at the end away from the burner head 11, and the place with the smallest diameter at the end is called the throat. The gas is received at the air inlet end of the ejector tube 15, and the gas flows through the contraction section and is accelerated at the throat. The ejection effect thus generated can draw in the air required for combustion. Thereafter, the gas and air are further mixed in the expansion section of the ejector tube 15 and output from the outlet of the ejector tube 15 to the burner for combustion.

[0071] During the operation of the gas stove 1000, Figure 4 As shown, Figure 4 This is a schematic diagram of the structure of an ejector tube 15 provided in an embodiment of the present application. In order to increase the amount of air ejected, the length L of the ejector tube 15 can be increased. For example, the length L of the ejector tube 15 can be 115 mm.

[0072] On the other hand, in order to increase the air injection amount, the throat diameter d of the ejector tube 15 can be one-ninth of the length L of the ejector tube 15. At this time, after experimental testing and verification, the above improvement can further increase the ejection negative pressure of the ejector tube 15 and improve the air injection amount.

[0073] At the same time, if Figure 5 As shown, Figure 5 This is a schematic diagram of the structure of a burner 11 provided in an embodiment of the present application. A windshield 17 is provided at the end of the ejector tube 15 where air is drawn in. This windshield 17 is a hollowed-out sheet metal structure, with gas and air introduced separately. By covering the hollowed-out area where air is introduced, the amount of air drawn into the ejector tube 15 is controlled. Furthermore, by expanding the area of ​​the hollowed-out area where air is introduced, the primary air intake channel is increased, ensuring more complete combustion.

[0074] Continue to see Figure 3 The inner fire cover 13 is provided with an inner gas outlet fire hole 134, and the outer fire cover is provided with an outer gas outlet fire hole 142. The external fuel gas and air are mixed through the ejector tube 15 and respectively transported into the inner ring gas mixing chamber 111 and the outer ring gas mixing chamber 112 of the burner head 11. The mixed gas transported into the inner ring gas mixing chamber 111 passes through the inner gas separation chamber 121 connected thereto, and finally flows out from the inner gas outlet fire hole 134 on the inner fire cover 13 covering the inner gas separation chamber 121. The mixed gas transported into the outer ring gas mixing chamber 112 passes through the outer gas separation chamber 122 connected thereto, and finally flows out from the outer gas outlet fire hole 142 on the outer fire cover 14 covering the outer gas separation chamber 122.

[0075] In addition, because the combustion of the outer fire cover 14 needs to provide more uniform gas mixture. Figure 6 As shown, Figure 6 This is a structural diagram of a burner 11 provided in an embodiment of the present application, wherein the outer ring gas mixing chamber 112 is designed to be a wide cavity structure, that is, Figure 6 As shown, the outer annular mixing chamber 112 includes, in addition to the annular region 1121, Figure 6 The gas mixing area 1122 shown increases the gas mixing space, so that the fuel gas and the injected air are evenly mixed in the outer annular gas mixing chamber 112 .

[0076] In addition, see Figure 3 The inner fire cover 13 is mounted on the inner air chamber 121, and the outer fire cover 14 is mounted on the outer air chamber 122. The inner fire outlet 134 of the inner fire cover 13 is connected to the inner air chamber 121, and the mixed gas in the inner air chamber 121 flows out through the inner fire outlet 134 of the inner fire cover 13. The outer fire cover 14 has an outlet connected to the outer air chamber 122, and the mixed gas in the outer air chamber 122 flows out through the outer fire outlet 142 of the outer fire cover 14.

[0077] like Figure 7 As shown, Figure 7 This is a schematic diagram of the structure of an inner fire cover 13 provided in an embodiment of the present application. To increase the flame heating area in the center of the burner 1 and ensure uniform heating of the pot bottom, the upper surface of the inner fire cover 13 is configured as an inclined surface, with an angle of 15° to the horizontal. The internal exhaust fire holes 134 on the upper surface of the inner fire cover 13 are configured to be perpendicular to the upper surface's inclined surface, that is, at an angle of 75° to the horizontal.

[0078] like Figure 8 As shown, Figure 8 This is a structural diagram of an inner fire cover 13 provided in an embodiment of the present application. The inner fire cover 13 is close to the fire distributor 12 ( Figure 8 A first positioning structure 131 is formed on one side of the PCB (not shown).

[0079] like Figure 9 As shown, Figure 9 The structure diagram of an outer fire cover 14 provided in the embodiment of the present application is shown in FIG. The outer fire cover 14 is provided with an outgoing gas and fire hole 142. Figure 10 As shown, Figure 10 This is a schematic diagram of the structure of an external fire cover 14 provided in an embodiment of the present application. Compared to the 135mm size of existing flat burners, in some embodiments, the external fire cover 14 provided in the embodiment of the present application has an outer diameter L1 of 125mm, an inner diameter L2 of 84mm, and a single-side width L3 of 20mm. This reduces the overall size of the gas stove 1000 and the space it occupies.

[0080] The burner 1 provided in the embodiment of the present application has a rated heat load of 5.2KW. To ensure a sufficient fire area, in some embodiments, the outer fire cover 14 is designed with four circles of outgoing gas and fire holes 142. The outgoing gas and fire holes 142 from the inside to the outside of the outer fire cover 14 are completely located on the upper surface of the outer fire cover 14. Therefore, the outgoing gas and fire holes 142 are set as vertical fire holes, that is, the outgoing gas and fire holes 142 are at an angle of 90° to the horizontal. The fire hole diameter is preferably 2mm, and the number of fire holes in a single circle is preferably 84, 90, 96, and 102 from the inside to the outside.

[0081] like Figure 11 As shown, Figure 11This is a structural diagram of an outer fire cover 14 provided in an embodiment of the present application. In order to further increase the number of air outlet fire holes, two circles of side air outlet fire holes 143 are provided on the inner and outer sides of the outer fire cover 14, and the fire outlet surfaces of the two circles of side air outlet fire holes 143 are both located on the inclined surface. In order to heat the flame area more concentratedly and improve the thermal efficiency, the angle of the outer circle of side air outlet fire holes 143 is preferably 75°, and the diameter of the fire holes is preferably 1.8mm. In order to avoid the innermost circle fire of the outer fire cover 14 from interfering with the flame of the inner fire cover 13, affecting the secondary air supply and causing an increase in the smoke index, the angle between the inner circle of side air outlet fire holes 143 and the outermost circle of inner air outlet fire holes 134 and the horizontal is preferably 70°, and the hole diameter is preferably 1.8mm. In order to improve the unit heat intensity and solve the problem of the combustion performance being affected by the small distance between the outgoing gas fire holes 142 on the inclined surface and the internal vertical outgoing gas fire holes 142, the outgoing gas fire holes 142 on the inclined surface and the adjacent vertical outgoing gas fire holes 142 are arranged to be distributed at intervals, and the number of fire holes in the two circles is the same; that is, the number of outgoing gas fire holes 142 in the outermost circle is 102, and the number of outgoing gas fire holes 142 in the innermost circle is 84.

[0082] Since the outgoing gas and fire holes 142 of the flat burner 1 are located on the upper surface of the fire cover, the thickness of the side wall of the fire cover will have no effect on the flame burning state. In order to reduce the weight of the fire cover and reduce unnecessary material waste, such as Figure 10 As shown, the outer side wall of the fire cover is set to be V-shaped, so that the weight of the outer fire cover 14 is reduced and the manufacturing cost is reduced while ensuring the assembly size of the outer fire cover 14 and the fire distributor 12 and the appearance size requirements of the outer fire cover 14.

[0083] In addition, if Figure 12 As shown, Figure 12 This is a structural diagram of an outer fire cover 14 provided in an embodiment of the present application. The outer fire cover 14 is close to the fire distributor 12 ( Figure 12 A second positioning structure 141 is formed on one side of the PCB (not shown).

[0084] Among them, Figure 13 As shown, Figure 13 This is a schematic diagram of the structure of a flame distributor 12 provided in an embodiment of the present application. The flame distributor 12 functions to evenly distribute the air-gas mixture to various areas of the flame cover. To ensure even distribution of the air-fuel mixture, the flame distributor 12 is provided with three independent gas distribution channels. The gas distribution channels are arranged in a bell-shaped pattern, with a smaller central area and larger peripheral areas. As the gas passes through the gas distribution channels, its flow rate is slowed, facilitating distribution and further improving the mixing of the air-fuel mixture.

[0085] like Figure 14 As shown, Figure 14 This is an assembly diagram of an inner fire cover 13 and a fire distributor 12 provided in an embodiment of the present application.

[0086] A third positioning structure 123 is formed on one side of the ignition distributor 12 near the inner fire cover 13. The third positioning structure 123 is connected to the first positioning structure 131. The connection between the third positioning structure 123 and the first positioning structure 131 determines the position and angle of the inner fire cover 13 installed on the ignition distributor 12.

[0087] like Figure 15 As shown, Figure 15 This is an assembly diagram of an outer fire cover 14 and a fire distributor 12 provided in an embodiment of the present application.

[0088] A fourth positioning structure 124 is formed on one side of the ignition distributor 12 near the outer fire cover 14. The fourth positioning structure 124 is connected to the second positioning structure 141. The connection between the fourth positioning structure 124 and the second positioning structure 141 determines the position and angle of the outer fire cover 14 installed on the ignition distributor 12.

[0089] In some embodiments, as Figure 12 As shown, the number of the second positioning structures 141 is multiple and greater than two. Figure 16 As shown, Figure 16 This is a schematic diagram of the structure of a fire divider 12 provided in an embodiment of the present application, wherein the number of fourth positioning structures 124 is multiple and greater than two. A second positioning structure 141 is connected to a fourth positioning structure 124. The multiple second positioning structures 141 are arranged at intervals along the circumference of the outer fire cover 14, and the angle formed between two adjacent second positioning structures 141 in the multiple second positioning structures 141 and the axis of the outer fire cover 14 includes a first angle 1411 and a second angle, and the first angle 1411 and the second angle are different in size.

[0090] It is understood that the number and position of the fourth positioning structure 124 correspond to the second positioning structure 141. Figure 12 and Figure 16 , the second positioning structure 141 is set to three, and the sizes of the angles formed between the three second positioning structures 141 and the axis of the outer fire cover 14 are α, β and γ respectively. In this way, the sizes of adjacent first angles 1411 and second angles can be α and β, β and γ or α and γ. The sizes of the first angle 1411 and the second angle are different. Correspondingly, the number of the fourth positioning structures 124 is also three, and the sizes of the angles formed between the three fourth positioning structures 124 and the axis of the ignition divider 12 are also α, β and γ. Based on this, the outer fire cover 14 and the ignition divider 12 can only be connected at a fixed position and a fixed angle.

[0091] Furthermore, the angles formed by the second positioning structure 141 and the line connecting the axis of the outer fire cover 14 are different from each other. Correspondingly, the angles formed by the fourth positioning structure 124 and the line connecting the axis of the ignition divider 12 are different from each other. In this way, the outer fire cover 14 and the ignition divider 12 can only be connected at a fixed position, fixed angle and fixed end face.

[0092] In some embodiments, as Figure 12 As shown, the second positioning structure 141 is provided with a first connection hole 1413. Figure 13 As shown, the fourth positioning structure 124 defines a second connection hole 1241. The gas stove 1000 further includes a first fastener, which is passed through the second connection hole 1241 and extends into the first connection hole 1413 to be threadedly connected to the first connection hole 1413.

[0093] In this way, the outer fire cover 14 where the first connecting hole 1413 is located and the ignition distributor 12 where the second connecting hole 1241 are located are fastened together by the first fastener. At the same time, the sealing of the connection between the outer fire cover 14 and the ignition distributor 12 is ensured so that there will be no fire leakage due to gaps after they are connected together.

[0094] In some embodiments, as Figure 14 The first positioning structure 131 is formed with a first positioning portion 1311. The third positioning structure 123 is formed with a second positioning portion 1231. The first positioning portion 1311 is located outside the axis of the inner fire cover 13, and the first positioning portion 1311 is connected to the second positioning portion 1231.

[0095] Among them, the first positioning portion 1311 is arranged relative to the second positioning portion 1231. In this way, the position of a point on the connecting plane between the inner fire cover 13 and the ignition divider 12 is determined by the connection between the first positioning portion 1311 and the second positioning portion 1231. Since the first positioning portion 1311 is located outside the axis of the inner fire cover 13, the rotation between the inner fire cover 13 and the ignition divider 12 relative to the axis is limited.

[0096] In some embodiments, see Figure 14 The second positioning portion 1231 is a hole structure. The first positioning portion 1311 extends into the second positioning portion 1231 and is connected to the second positioning portion 1231.

[0097] For connection stability, the shape of the first connection portion 1233 should correspond to that of the second connection portion 1233 .

[0098] In some embodiments, the first positioning structure 131 further defines a third connection hole 1312, and the third positioning structure 123 further defines a fourth connection hole 1232. Figure 17 As shown, Figure 17This is an assembly diagram of an inner fire cover 13 and a fire distributor 12 provided in an embodiment of the present application. The gas stove 1000 also includes a second fastener 16. The second fastener 16 is passed through the fourth connecting hole 1232 and extends into the third connecting hole 1312, and is threadedly connected to the third connecting hole 1312.

[0099] In this way, the inner fire cover 13 where the third connection hole 1312 is located and the ignition distributor 12 where the fourth connection hole 1232 is located are fastened together by the second fastener 16. At the same time, the sealing of the connection between the inner fire cover 13 and the ignition distributor 12 is ensured so that there will be no fire leakage due to gaps after they are connected together.

[0100] Furthermore, the inner fire cover 13 and the igniter 12 are fixed at the positions of the third connecting hole 1312 and the fourth connecting hole 1232. The inner fire cover 13 and the igniter 12 are also fixed at the positions of the first positioning portion 1311 and the second positioning portion 1231. These two fixed positions restrict the relative movement of the inner fire cover 13 and the igniter 12. This ensures that when the inner fire cover 13 is assembled, the two ignition bosses (not shown in the figure) can accurately correspond to the ignition needle and the thermocouple.

[0101] In some embodiments, the third connection hole 1312 passes through the axis of the inner fire cover 13 , and the fourth connection hole 1232 passes through the axis of the ignition distributor 12 .

[0102] The third connecting hole 1312 is arranged on the axis passing through the inner fire cover 13, and the fourth connecting hole 1232 is arranged on the axis passing through the ignition divider 12. Such a position is easy to process the third connecting hole 1312 and the fourth connecting hole 1232.

[0103] In some embodiments, as Figure 7 As shown, the inner fire cover 13 includes an inner fire cover top wall 132 and an inner fire cover side wall 133. The inner fire cover side wall 133 is located on the side of the inner fire cover top wall 132 close to the fire divider 12 (not shown in the figure), is arranged around the inner fire cover top wall 132, and is connected to the inner fire cover top wall 132. The end of the inner fire cover side wall 133 away from the inner fire cover top wall 132 abuts against the fire divider 12 (not shown in the figure). Among them, the first positioning structure 131 is formed on the inner fire cover top wall 132, located on the side where the inner fire cover side wall 133 is located.

[0104] like Figure 7 and Figure 17 When the inner fire cover 13 is connected to the third positioning structure 123 of the ignition distributor 12 via the first positioning structure 131, the second fastener 16, when secured in the third connection hole 1312, is located on the side of the top wall 132 of the inner fire cover 13 closest to the ignition distributor 12. This prevents the connection structure from being visible from the outside of the burner 1, ensuring a simple product appearance. It is readily understood that the first positioning structure 131 may also be formed on the side wall 133 of the inner fire cover 13.

[0105] At the same time, if Figure 8 As shown, in order to improve the ignition performance of the burner 1 and ensure that the flame can burn normally, two ignition bosses are set on the outer wall 133 of the inner fire cover 13, corresponding to the ignition needle and the thermocouple respectively, and the distance between the boss and the ignition needle and the thermocouple is optimized to 4.5 mm.

[0106] In some embodiments, the first positioning structure 131 is a protrusion structure.

[0107] Designing the first positioning structure 131 as a protruding structure can reduce the thickness of the top wall 132 of the inner fire cover 13, thereby reducing processing costs. On the other hand, it can shorten the distance between the third connecting hole 1312 and the fourth connecting hole 1232, thereby expanding the range of optional sizes of the second fastener 16.

[0108] In some embodiments, as Figure 13 The ignition divider 12 is provided with an internal ventilation hole 125, which connects the inner annular mixing chamber 111 and the inner air separation chamber 121. The third positioning structure 123 includes a connecting portion 1233 and a plurality of legs 1234. The connecting portion 1233 is provided with a fourth connecting hole 1232. The connecting portion 1233 and the internal ventilation hole 125 are arranged opposite to each other at intervals. The plurality of legs 1234 are arranged along the circumference of the internal ventilation hole 125, and one end of the plurality of legs 1234 is connected to the periphery of the ventilation hole at intervals, and the other end extends in a direction away from the ignition divider 12 and close to the connecting portion 1233, and is connected to the connecting portion 1233. A second positioning portion 1231 is formed on one of the legs 1234.

[0109] The connecting portion 1233 connects the plurality of legs 1234 to form the third positioning structure 123. The inner vent hole 125 begins to communicate with the inner mixing chamber and the inner air separation chamber 121 (not shown). The connecting portion 1233 is spaced apart from the inner vent hole 125 and is disposed opposite to the inner vent hole 125, allowing the mixed gas in the inner mixing chamber to pass through the inner vent hole 125 and the gap between the connecting portion 1233 and the inner air separation hole, and then flow into the inner air separation chamber 121 through the gap between the legs 1234.

[0110] The projection of the connecting portion 1233 on the plane where the inner vent hole 125 is located is located inside the vent hole, thus further increasing the passing space of the mixed air.

[0111] In the description of this specification, specific features, structures, materials or characteristics may be combined in an appropriate manner in any one or more embodiments or examples.

[0112] The above are merely specific embodiments of the present invention, but the scope of protection of the present invention is not limited thereto. Any modifications or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in the present invention should be included within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be based on the scope of protection of the claims.

Claims

1. A gas stove, characterized in that: include: The burner head is formed with an inner ring gas mixing chamber and an outer ring gas mixing cavity; A fire distributor is provided on the burner head, and is formed with an inner air distribution chamber and an outer air distribution chamber; the inner air distribution chamber is communicated with the inner ring air mixing chamber, and the outer air distribution chamber is communicated with the outer ring air mixing chamber; An inner fire cover is provided on the inner gas separation chamber, and a first positioning structure is formed on a side of the inner fire cover close to the fire distributor; An outer fire cover is provided on the outer gas distribution chamber, and a second positioning structure is formed on a side of the outer fire cover close to the fire distributor; Among them, a third positioning structure and a fourth positioning structure are formed on one side of the fire divider close to the inner fire cover and the outer fire cover; the third positioning structure is connected to the first positioning structure, and the fourth positioning structure is connected to the second positioning structure.

2. The gas stove according to claim 1, characterized in that: The number of the second positioning structure and the fourth positioning structure is plural and greater than two; one second positioning structure is connected to one fourth positioning structure; In which, multiple second positioning structures are arranged at intervals along the circumference of the outer fire cover, and the angle formed between two adjacent second positioning structures in the multiple second positioning structures and the axis of the outer fire cover includes a first angle and a second angle, and the sizes of the first angle and the second angle are different.

3. The gas stove according to claim 2, characterized in that: The second positioning structure is provided with a first connection hole, and the fourth positioning structure is provided with a second connection hole; the gas stove further comprises: A first fastener is inserted into the second connection hole and extends into the first connection hole to be threadedly connected to the first connection hole.

4. The gas stove according to claim 1, characterized in that: The first positioning structure is formed with a first positioning portion; the third positioning structure is formed with a second positioning portion; the first positioning portion is located outside the axis of the inner fire cover, and the first positioning portion is connected to the second positioning portion.

5. The gas stove according to claim 4, characterized in that: The second positioning portion is a hole structure; the first positioning portion extends into the second positioning portion and is connected to the second positioning portion.

6. The gas stove according to claim 4, characterized in that: The first positioning structure further has a third connection hole, and the third positioning structure further has a fourth connection hole; the gas stove further includes: The second fastener is passed through the fourth connecting hole and extends into the third connecting hole to be threadedly connected to the third connecting hole.

7. The gas stove according to claim 6, characterized in that: The third connecting hole passes through the axis of the inner fire cover, and the fourth connecting hole passes through the axis of the ignition distributor.

8. The gas stove according to claim 4, characterized in that: The inner fire cover comprises: inner fire cover top wall; and, an inner fire cover side wall, the inner fire cover side wall being located on a side of the inner fire cover top wall close to the fire distributor, being arranged around the inner fire cover top wall, and being connected to the inner fire cover top wall; an end of the inner fire cover side wall away from the inner fire cover top wall abuts against the fire distributor; Wherein, the first positioning structure is formed on the top wall of the inner fire cover, and is located on the side where the side wall of the inner fire cover is located.

9. The gas stove according to claim 8, characterized in that: The first positioning structure is a protruding structure.

10. The gas stove according to claim 7, characterized in that: The ignition distributor is provided with an inner vent hole, which is connected to the inner ring gas mixing chamber and the inner gas separation chamber; The third positioning structure includes: A connecting portion, wherein the fourth connecting hole is formed in the connecting portion; the connecting portion and the inner vent hole are arranged opposite to each other; and Multiple legs are provided along the circumference of the inner vent hole, one end of each leg is connected to the periphery of the vent hole at intervals, and the other end extends in a direction away from the ignition distributor and close to the connecting portion, and is connected to the connecting portion; the second positioning portion is formed on one of the legs.

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