CN219913150U - Gas range - Google Patents

Abstract

The present utility model relates to a gas cooker, comprising: a housing; the top of the burner protrudes out of the top surface of the shell; the pot rack is provided with an assembly groove in the center, and the top surface of the pot rack is provided with an energy collecting groove with the center recessed downwards; the pot frame surrounds the week side of arranging at the combustor top, and the top of pot frame is higher than the top of combustor, and the top holding of combustor is in the assembly groove, and then makes the flame when little fire state, and the heat of little fire can gather in gathering the profile of ability recess, reduces the heat transfer between the top of combustor and the external world, improves the temperature of gathering the headspace of ability recess, and then improves the heat transfer with the pot body, is favorable to promoting the stability under little fire state to satisfy the low temperature cooking demand of gas-cooker.

Description

Gas range

Technical Field

The utility model relates to the technical field of gas equipment, in particular to a gas stove.

Background

The gas cooker is a kitchen appliance which directly heats by using liquefied petroleum gas (liquid), artificial gas, natural gas and other gas fuels, and has become an indispensable electrical product in the home life. With the improvement of the living standard of people, the performance requirements of people on various items of gas stoves are also higher and higher, including the regulation of firepower.

In the related gas cooker, no high-energy-efficiency burner specially suitable for low-temperature cooking needs exists at present, the structure of the burner is not improved to be suitable for the low-temperature cooking needs, and the burner is usually only regulated or improved on the heat load of the minimum fire of the burner, but the flame is easy to be unstable and easy to temper or flame out due to the too small heat load.

Disclosure of Invention

The utility model aims to provide a gas stove so as to optimize the structure of the gas stove in the prior art, improve the stability of the gas stove in a small fire state and meet the low-temperature cooking requirement of the gas stove.

In order to solve the technical problems, the utility model adopts the following technical scheme:

according to one aspect of the present utility model, there is provided a gas range including: a housing forming a housing of the gas range; a mounting cavity is formed in the shell, and a through hole communicated with the mounting cavity is formed in the top surface of the shell; the burner is arranged in the mounting cavity, and the top of the burner protrudes out of the through hole and is exposed out of the top surface of the shell; the pot rack is arranged above the top surface of the shell and is erected above the through hole; the pot rack is annular, an assembly groove matched with the top of the burner is formed in the center of the pot rack, and an energy gathering groove with the center recessed downwards is formed in the top surface of the pot rack; the bottom of the energy gathering groove is communicated with the top of the assembly groove; when the pot rack is erected above the through hole, the pot rack is arranged on the periphery of the top of the burner in a surrounding mode, the top of the pot rack is higher than the top of the burner, and the top of the burner is accommodated in the assembly groove.

In some embodiments of the application, an annular heat insulation cavity is formed in the pot frame, the heat insulation cavity is circumferentially arranged on the periphery side of the assembly groove, and the top area of the heat insulation cavity protrudes out of the top opening of the assembly groove.

In some embodiments of the application, the insulating cavity is filled with an insulating material.

In some embodiments of the present application, the energy-collecting groove is internally provided with a supporting block extending upwards in a protruding manner, the top surface of the supporting block forms a supporting surface, and the supporting surface protrudes out of the top opening of the energy-collecting groove and forms the top surface of the pot rack; the plurality of support blocks are arranged around the center of the energy collecting groove at intervals; and a heat dissipation channel is formed between the adjacent supporting blocks and the bottom surface of the energy collecting groove, and the depth of the heat dissipation channel gradually becomes deeper in the direction towards the center of the energy collecting groove.

In some embodiments of the present application, the bottom of the pot frame is convexly provided with supporting feet, and the supporting feet are supported on the top surface of the shell, so that an air supplementing channel is formed between the bottom of the pot frame and the top surface of the shell; an air supplementing gap is formed between the peripheral side groove wall of the assembly groove and the peripheral wall of the top of the burner, the bottom end of the air supplementing gap is communicated with the air supplementing channel, and the top end of the air supplementing gap is communicated with the bottom center of the energy gathering groove.

In some embodiments of the present application, a circumferential side wall at the bottom of the energy collecting groove is concavely provided with an air supplementing ring groove, and the air supplementing ring groove is annular and circumferentially arranged at the circumferential side of the top opening of the assembly groove.

In some embodiments of the application, the top surface of the burner is provided with a concave groove with a concave center downwards; a plurality of inner ring fire holes which are arranged around the center of the concave groove are formed in the groove side wall of the concave groove; when the pot rack is erected above the through hole, the top opening of the concave groove is positioned at the top opening of the assembly groove and is directly communicated with the bottom center of the energy gathering groove.

In some embodiments of the application, the height difference between the inner annular fire hole and the top opening of the concave groove is greater than the height difference between the bottom of the energy gathering groove and the top surface of the pot rack.

In some embodiments of the application, the burner comprises a burner head and a fire cover; an air inlet channel extending vertically is arranged in the center of the furnace end; the fire cover is arranged at the top of the furnace end, and an inner ring air mixing cavity is enclosed between the bottom surface of the fire cover and the top surface of the furnace end; the concave groove is formed on the top surface of the fire cover, and the top of the concave groove is communicated with the top of the air inlet channel; the inner ring fire hole is communicated with the inner ring air mixing cavity and the concave groove; the top parts of the furnace end and the fire cover protrude out of the through hole and extend into the assembly groove.

In some embodiments of the present application, an inner ring fire seam is arranged on a peripheral side wall of a connection part between the bottom of the concave groove and the air inlet channel, and the inner ring fire seam is annular and is arranged around the centers of the concave groove and the air inlet channel; one end of the inner ring fire hole is communicated with the inner ring mixing cavity, and the other end of the inner ring fire hole is communicated with the inner ring fire seam.

In some embodiments of the application, the burner comprises a burner base and a burner cover; a furnace chamber with an opening at the top is formed in the furnace seat; the furnace cover is arranged in the furnace chamber, the center of the furnace cover is provided with the air inlet channel, a ventilation cavity is formed between the bottom surface of the furnace cover and the bottom surface of the furnace chamber, and the center of the ventilation cavity is communicated with the bottom of the air inlet channel; the inner ring air mixing cavity is formed between the top surface of the furnace cover and the bottom surface of the fire cover.

In some embodiments of the present application, an air gap is formed between the peripheral wall of the furnace cover and the peripheral side wall of the furnace chamber, the bottom end of the air gap is communicated with the air chamber, and the top end of the air gap is exposed out of the top surface of the housing.

In some embodiments of the application, the top region of the insulating cavity can surround over the top opening of the recessed channel when the top of the burner is received in the mounting channel; the depth of the heat dissipation channels is smaller than the height difference between the inner ring fire holes and the top openings of the concave grooves; the center of the air supplementing ring groove is directly opposite to and communicated with the top opening of the concave groove, and the top end of the air supplementing gap is communicated with the center of the air supplementing ring groove.

As can be seen from the technical scheme, the embodiment of the utility model has at least the following advantages and positive effects:

according to the gas stove provided by the embodiment of the utility model, the pot rack is arranged on the periphery of the top of the burner, and the top of the burner protrudes out of the through hole on the top surface of the shell by utilizing the assembly groove of the pot rack and can extend into the assembly groove, so that the pot rack can be arranged around the periphery of the top of the burner, the heat exchange between the top of the burner and the outside is reduced, the temperature of the top space of the energy gathering groove is improved, the heat exchange with the pot body is further improved, the stability in a small fire state is improved, and the low-temperature cooking requirement of the gas stove is met.

Drawings

Fig. 1 is a schematic view of a gas range according to an embodiment of the present utility model.

Fig. 2 is an exploded view of fig. 1.

Fig. 3 is a schematic view of the structure of the inside of the case in fig. 2.

Fig. 4 is a schematic view of the burner of fig. 3.

Fig. 5 is a schematic view of the structure of fig. 4 at another view angle.

Fig. 6 is a schematic view of the burner and fire cover of fig. 4.

Fig. 7 is an exploded view of fig. 6.

FIG. 8 is an exploded view of the burner of FIG. 7.

Fig. 9 is a cross-sectional view of the burner block of fig. 8.

Fig. 10 is a cross-sectional view of the fire cover of fig. 7.

Fig. 11 is a schematic view of the fire cover of fig. 7 from another perspective.

Fig. 12 is a cross-sectional view of fig. 6.

Fig. 13 is an enlarged cross-sectional view of area a of fig. 12.

Fig. 14 is a schematic view of the structure of the pot holder in fig. 2.

Fig. 15 is a schematic view of the structure of fig. 14 at another viewing angle.

Fig. 16 is a cross-sectional view of fig. 14.

Fig. 17 is a schematic cross-sectional view of fig. 1.

Fig. 18 is an enlarged cross-sectional view of region B of fig. 17.

The reference numerals are explained as follows: 1. a housing; 10. a mounting cavity; 11. a bottom case; 12. a cover plate; 2. a burner; 20. an air intake passage; 21. a furnace seat; 210. a cavity; 211. a ventilation chamber; 212. a vent; 213. a ventilation gap; 22. a furnace cover; 221. a support part; 222. a first annular wall; 223. a second annular wall; 224. a third annular wall; 225. a fourth annular wall; 231. an inner ring injection pipe; 232. a middle ring injection pipe; 233. an outer ring injection pipe; 3. a fire cover; 30. a concave groove; 301. an inner ring fire hole; 302. a middle ring hole; 303. an outer ring fire hole; 304. an inner ring fire seam; 305. flame stabilizing joints; 306. flame stabilizing holes; 31. a first annular protrusion; 32. a second annular protrusion; 33. a third annular protrusion; 34. a fourth annular protrusion; 41. an inner ring air mixing cavity; 42. middle ring mixing cavity; 43. an outer ring mixing cavity; 51. a main vent pipe; 511. a main control valve; 52. an inner ring vent pipe; 521. a proportional valve; 53. middle ring vent pipe; 531. a first switching valve; 54. an outer ring vent pipe; 541. a second switching valve; 6. a pot holder; 60. an energy gathering groove; 601. an air supplementing ring groove; 61. an assembly groove; 62. a heat insulating chamber; 63. a support block; 64. a heat dissipation channel; 65. supporting feet; 650. an air supplementing channel; 66. air-supplementing gap.

Detailed Description

Exemplary embodiments that embody features and advantages of the present utility model will be described in detail in the following description. It will be understood that the utility model is capable of various modifications in various embodiments, all without departing from the scope of the utility model, and that the description and illustrations herein are intended to be by way of illustration only and not to be construed as limiting the utility model.

In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more of the described features. In the description of the present utility model, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.

In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

In the related gas cooker, no high-energy-efficiency burner specially suitable for low-temperature cooking needs exists at present, the structure of the burner is not improved to be suitable for the low-temperature cooking needs, and the burner is usually only regulated or improved on the heat load of the minimum fire of the burner, but the flame is easy to be unstable and easy to temper or flame out due to the too small heat load.

Fig. 1 is a schematic view of a gas range according to an embodiment of the present utility model. Fig. 2 is an exploded view of fig. 1. Fig. 3 is a schematic view of the structure of the inside of the housing 1 in fig. 2. Fig. 4 is a schematic view of the burner of fig. 3. Fig. 5 is a schematic view of the structure of fig. 4 at another view angle.

Referring to fig. 1 to 5, a gas stove provided by an embodiment of the present utility model mainly includes a housing 1, a burner and a pot holder 6.

Wherein, the shell 1 is a container structure with a hollow inside, and the outer part of the shell 1 forms the outer shell of the gas stove. The inner space of the housing 1 forms a mounting cavity 10, which mounting cavity 10 serves to provide a mounting space for the burner.

In some embodiments, the housing 1 includes a bottom shell 11 and a cover plate 12. The bottom shell 11 is a shell-shaped structure with an opening at the top, the cover plate 12 covers the opening at the top of the bottom shell 11, and a mounting cavity 10 is formed between the bottom shell 11 and the cover plate 12. The cover plate 12 covers the top opening of the bottom case 11, and the main body portion of the burner can be enclosed in the installation cavity 10.

In some embodiments, the top surface of the housing 1 is provided with a through hole (not shown), i.e. the through hole is provided on the cover 12. The through holes are communicated with the installation cavity 10, when the burner is installed in the installation cavity 10, the top of the burner can penetrate through the through holes on the cover plate 12 to protrude out of the top surface of the shell 1, namely, the top of the burner can protrude out and be exposed out of the top surface of the cover plate 12.

Referring to fig. 1 to 4, the top surface of the burner is concavely provided with a concave groove 30 with a concave center, the concave groove 30 is exposed out of the top surface of the housing 1, and the concave groove 30 is used for forming flame, so that the flame is gathered in the concave groove 30 for burning.

Fig. 6 is a schematic view of the burner 2 and the fire cover 3 of fig. 4. Fig. 7 is an exploded view of fig. 6.

Referring to fig. 4 to 7, in some embodiments, the burner mainly includes a burner 2, a fire cover 3 and a gas supply line.

Wherein, furnace end 2 locates in installation cavity 10, and furnace end 2 is used for providing the installation space for fire lid 3. The fire cover 3 is covered on the top of the furnace end 2, the concave groove 30 is formed by downwards sinking the top surface of the fire cover 3, the concave groove 30 is of a central concave structure, and the depth of the concave groove 30 gradually becomes deep in the direction close to the center of the concave groove 30. The concave groove 30 vertically penetrates through the center of the fire cover 3, and the top and the bottom of the concave groove 30 are both open. The top opening of the recess 30 is exposed to the housing 1 and communicates with a space outside the housing 1. The bottom opening of the concave groove 30 communicates with the inner space of the burner 2. The burner is arranged in the shell 1, the top parts of the burner 2 and the fire cover 3 penetrate through the through holes, protrude and are exposed out of the top surface of the shell 1, and the concave groove 30 is exposed out of the top surface of the shell 1.

In some embodiments, the recessed groove 30 has a truncated cone-shaped groove-like structure, and the top opening of the recessed groove 30 is larger than the bottom opening of the recessed groove 30. Accordingly, the peripheral side groove wall of the concave groove 30 can extend obliquely downward from the top opening of the concave groove 30 toward the center direction of the concave groove 30 to the bottom opening of the concave groove 30.

Referring to fig. 6 and 7, when the fire cover 3 is covered on top of the burner 2, a plurality of air mixing chambers are formed between the burner 2 and the fire cover 3. Specifically, the plurality of gas mixing chambers includes an inner ring gas mixing chamber 41, an intermediate ring gas mixing chamber 42, and an outer ring gas mixing chamber 43, and external fuel gas can enter the inner ring gas mixing chamber 41, the intermediate ring gas mixing chamber 42, and the outer ring gas mixing chamber 43, respectively. The inner ring air mixing cavity 41, the middle ring air mixing cavity 42 and the outer ring air mixing cavity 43 are all annular and are sequentially arranged around the center of the burner 2 and the fire cover 3 from inside to outside, the middle ring air mixing cavity 42 is circumferentially arranged at the periphery of the inner ring air mixing cavity 41, and the outer ring air mixing cavity 43 is circumferentially arranged at the periphery of the middle ring air mixing cavity 42, so that the burner forms an inner-outer three-ring structure.

In other embodiments, only the inner-ring air mixing chamber 41 and the outer-ring air mixing chamber 43 may be formed between the burner 2 and the fire cover 3, so that the burner forms an inner-outer two-ring structure.

Referring to fig. 6 to 7, in some embodiments, inner ring fire holes 301, middle ring fire holes 302 and outer ring fire holes 303 are respectively formed on the side walls of the recess groove 30 on the peripheral side.

Wherein, the inner ring fire hole 301 communicates the inner ring air mixing cavity 41 and the concave groove 30, the inner ring fire hole 301 is provided with a plurality of inner ring fire holes 301 which are orderly arranged at intervals around the center of the concave groove 30. The middle ring fire holes 302 are communicated with the middle ring gas mixing cavity 42 and the concave groove 30, a plurality of middle ring fire holes 302 are arranged, and the plurality of middle ring fire holes 302 are sequentially arranged at intervals around the center of the concave groove 30. The outer ring fire holes 303 are communicated with the outer ring air mixing cavity 43 and the concave groove 30, a plurality of outer ring fire holes 303 are arranged, and the plurality of outer ring fire holes 303 are sequentially arranged at intervals around the center of the concave groove 30. The inner ring fire holes 301, the middle ring fire holes 302 and the outer ring fire holes 303 are sequentially arranged at intervals along the groove side walls of the circumference sides of the concave grooves 30 from bottom to top, namely the middle ring fire holes 302 are arranged at intervals on the upper sides of the inner ring fire holes 301, and the outer ring fire holes 303 are arranged at intervals on the upper sides of the middle ring fire holes 302. The structural design of the concave groove 30 is beneficial to improving the depth of the inner ring fire hole 301, further improving the distance between the inner ring flame and the bottom of the pan and weakening the heating effect of the inner ring flame on the bottom of the pan.

The fuel gas in the inner ring gas mixing chamber 41 can enter the concave groove 30 through the inner ring flame holes 301 to burn, and then form an inner ring flame in the concave groove 30. The fuel gas in the middle ring gas mixing chamber 42 can enter the concave groove 30 through the middle ring fire hole 302 to burn, and then middle ring flame is formed in the concave groove 30. The fuel gas in the outer ring gas mixing chamber 43 can enter the concave groove 30 through the outer ring fire holes 303 to burn, and then outer ring flame is formed in the concave groove 30. Therefore, different flames can be formed at different height positions in the concave groove 30 respectively, the inner ring flame, the middle ring flame and the outer ring flame are sequentially arranged at intervals from inside to outside, the height of the inner ring flame is lowest, the distance between the inner ring flame and the top opening of the concave groove 30 is farthest, and the inner ring flame and the concave groove are independently applicable to low-temperature cooking requirements. The outer ring flame is highest in height and the distance between the outer ring flame and the top opening of the concave groove 30 is nearest. The height of the middle ring flame is between the height of the inner ring flame and the height of the outer ring flame, and the distance between the middle ring flame and the top opening of the concave groove 30 is between the inner ring flame and the outer ring flame, and the middle ring flame and the outer ring flame can be suitable for high temperature cooking requirements or common cooking requirements. The inner ring flame can cooperate with the middle ring flame and the outer ring flame to jointly meet the high-temperature cooking requirement or the common cooking requirement. In addition, through respectively controlling the gas supply amounts in the inner ring gas mixing cavity 41, the middle ring gas mixing cavity 42 and the outer ring gas mixing cavity 43, a plurality of different firepower gear adjustments can be realized, and further the use requirements of different cooking temperatures are met.

Referring to fig. 6 to 7, in some embodiments, a vertically extending air inlet channel 20 is formed at the center of the burner 2, the top of the air inlet channel 20 is in direct communication with the bottom of the recess 30, and the bottom of the air inlet channel 20 is in communication with the external space of the burner 2. Therefore, the air inlet channel 20 can supplement air into the concave groove 30, so that when the fuel gas in each mixing cavity is combusted, the air outside the burner 2 can enter the air inlet channel 20 and then enter the concave groove 30, and air is provided for the combustion of the fuel gas at the inner ring fire hole 301, the middle ring fire hole 302 and the outer ring fire hole 303 respectively, so that the combustion efficiency of the fuel gas in each mixing cavity and the fire hole is improved.

In some embodiments, the plurality of inner ring fire holes 301 are circumferentially arranged on the circumferential side wall of the bottom of the recess groove 30, that is, the inner ring fire holes 301 are distributed on the circumferential side wall of the connection region of the bottom of the recess groove 30 and the top of the intake passage 20, such that the distance between the inner ring fire holes 301 and the top opening of the recess groove 30 becomes large. When needing to cook at low temperature, can only open the inner ring flame, through the mode that improves the distance between the open-top of inner ring flame and indent 30, improve the distance between inner ring flame and the pot body bottom, and then weaken the heating effect of inner ring flame to the pot body, and then can reach very good effect when cooking food material at low temperature, so this structural scheme can make the combustor be applicable to low temperature cooking function.

Fig. 8 is an exploded view of the burner 2 of fig. 7. Fig. 9 is a cross-sectional view of the burner block 21 of fig. 8.

Referring to fig. 6 to 9, in some embodiments, the burner 2 includes a base 21 and a cover 22 that are removably connected as one piece. Wherein, the furnace seat 21 is installed in the installation cavity 10, and a furnace chamber 210 with an open top is formed in the furnace seat 21. The cover 22 is detachably provided in the cavity 210. The top of the furnace cover 22 is used for forming various air mixing cavities, specifically, the fire cover 3 is covered above the top of the furnace cover 22, so that an inner ring air mixing cavity 41, an intermediate ring air mixing cavity 42 and an outer ring air mixing cavity 43 are respectively formed between the top surface of the furnace cover 22 and the bottom surface of the fire cover 3.

The bottom of the furnace cover 22 is supported on the bottom surface of the furnace chamber 210, and the center of the furnace cover 22 forms an air inlet passage 20 penetrating the furnace cover 22 up and down, and the air inlet passage 20 serves as an auxiliary passage for secondary air supplement. When the cover 22 is installed in the seat 21, a supplementary cavity 211 is formed between the bottom surface of the cover 22 and the bottom surface of the cavity 210. The intake passage 20 is located at the center of the air-supplementing chamber 211, and the intake passage 20 extends upward from the center of the air-supplementing chamber 211. Specifically, the bottom end of the intake passage 20 communicates with the center of the air-supplementing chamber 211, the peripheral side of the air-supplementing chamber 211 can communicate with the external space of the burner 2, and the top end of the intake passage 20 communicates with the space above the top of the burner 2. Accordingly, air can freely flow in the air-supplementing chamber 211 and the intake passage 20. When flame is burned in the concave groove 30 of the fire cover 3, air in the air supplementing cavity 211 can flow upwards into the concave groove 30 through the air inlet channel 20, so that air is supplemented for burning of the flame, and the burning efficiency of the gas stove is improved.

When low-temperature cooking is required, the inner ring flame is only turned on, and is in a small fire state, a part of heat of the inner ring small flame is transferred upwards along the concave groove 30 to heat the bottom of the pot body, and the other part of heat of the inner ring small flame can downwards heat air in the air inlet channel 20 and the air supplementing cavity 211 along the air inlet channel 20, so that the heating capacity of the inner ring small fire is weakened, and the low-temperature cooking function is more beneficial to realization.

Referring to fig. 8 to 9, in some embodiments, a plurality of supporting portions 221 are protruded from a bottom of the furnace cover 22, and bottom ends of the supporting portions 221 are supported on a bottom surface of the furnace chamber 210, so that the furnace cover 22 can be supported in the furnace chamber 210, and a space arrangement is maintained between an outer periphery of the furnace cover 22 and an inner wall of the furnace chamber 210, so that a ventilation chamber 211 can be formed between the outer periphery of the furnace cover 22 and the inner wall of the furnace chamber 210.

It should be noted that, in other embodiments, the seat 21 and the cover 22 may be integrally formed, and the air inlet channel 20 and the air compensating cavity 211 are formed in the burner 2.

Referring to fig. 8, in some embodiments, a vent 212 is formed on a peripheral wall of the furnace seat 21, and the vent 212 communicates with the air supplementing cavity 211 and an external space of the furnace seat 21. Accordingly, air outside the oven housing 21 can enter the air-supplementing chamber 211 through the air vent 212, and further enter the air intake passage 20 from the center of the air-supplementing chamber 211.

In some embodiments, a plurality of vents 212 may be provided, with the plurality of vents 212 being circumferentially spaced around the peripheral wall of the burner block 21.

In some embodiments, a vent gap 213 is formed between the outer peripheral wall of the lid 22 and the peripheral side wall of the cavity 210, the bottom end of the vent gap 213 communicates with the supplementary cavity 211, and the top end of the vent gap 213 communicates with the external space of the seat 21.

Fig. 10 is a cross-sectional view of the fire cover 3 of fig. 7. Fig. 11 is a schematic view of the fire cover 3 in fig. 7 in another view. Fig. 12 is a cross-sectional view of fig. 6.

Referring to fig. 7-12, in some embodiments, the top of the furnace cover 22 is provided with a first annular wall 222, a second annular wall 223, a third annular wall 224, and a fourth annular wall 225, which are concentrically arranged. The first annular wall 222, the second annular wall 223, the third annular wall 224 and the fourth annular wall 225 are all in annular structures and are sequentially arranged at intervals from inside to outside along the radial direction of the burner 2. Specifically, the first annular wall 222 is circumferentially arranged on the peripheral side of the intake passage 20, the second annular wall 223 is circumferentially arranged at intervals on the outer periphery of the first annular wall 222, the third annular wall 224 is circumferentially arranged at intervals on the outer periphery of the second annular wall 223, the fourth annular wall 225 is circumferentially arranged at intervals on the outer periphery of the third annular wall 224, and the first annular wall 222, the second annular wall 223, the third annular wall 224 and the fourth annular wall 225 are coaxially arranged and sequentially arranged at intervals from inside to outside.

When the fire cover 3 is covered on the top of the furnace cover 22, the first annular wall 222, the second annular wall 223 and the fire cover 3 can be enclosed to form the inner ring air mixing cavity 41, the second annular wall 223, the third annular wall 224 and the fire cover 3 can be enclosed to form the middle ring air mixing cavity 42, the third annular wall 224, the fourth annular wall 225 and the fire cover 3 can be enclosed to form the outer ring air mixing cavity 43, and then the inner ring air mixing cavity 41, the middle ring air mixing cavity 42 and the outer ring air mixing cavity 43 are coaxially arranged around the axis of the air inlet channel 20 and are sequentially arranged at intervals from inside to outside.

Referring to fig. 7 to 12, in some embodiments, the bottom of the fire cover 3 is provided with a first annular protrusion 31, a second annular protrusion 32, a third annular protrusion 33 and a fourth annular protrusion 34, which are concentrically arranged. The first annular protrusion 31, the second annular protrusion 32, the third annular protrusion 33 and the fourth annular protrusion 34 are all in annular structures and are sequentially arranged at intervals from inside to outside along the radial direction of the fire cover 3.

When the fire cover 3 is covered on the top of the furnace cover 22, the bottom of the first annular protrusion 31 is connected with the top of the first annular wall 222 up and down, the bottom of the second annular protrusion 32 is connected with the top of the second annular wall 223 up and down, the bottom of the third annular protrusion 33 is connected with the top of the third annular wall 224 up and down, and the bottom of the fourth annular protrusion 34 is connected with the top of the fourth annular wall 225 up and down. Therefore, the inner annular air mixing chamber 41 can be defined between the first annular protrusion 31 and the second annular protrusion 32 of the fire cover 3 and the first annular wall 222 and the second annular wall 223 of the burner 2. The middle ring mixing cavity 42 can be enclosed between the second ring protrusion 32 and the third ring protrusion 33 of the fire cover 3 and the second ring wall 223 and the third ring wall 224 of the burner 2. An outer ring air mixing cavity 43 can be enclosed between the third annular protrusion 33 and the fourth annular protrusion 34 of the fire cover 3 and the third annular wall 224 and the fourth annular wall 225 of the burner 2.

Fig. 13 is an enlarged cross-sectional view of area a of fig. 12.

Referring to fig. 10 to 13, an inner ring fire slit 304 is provided on a peripheral side wall of a bottom of the recess groove 30 of the fire cover 3, the inner ring fire slit 304 is annular, and the inner ring fire slit 304 is disposed around a center of the recess groove 30. Meanwhile, the inner circumferential flame slit 304 is located on the circumferential side wall of the top region of the intake passage 20, i.e., on the circumferential side wall of the junction between the bottom of the concave groove 30 and the top of the intake passage 20, thereby enabling the inner circumferential flame slit 304 to be disposed around the circumferential side wall of the intake passage 20. The center side of the inner ring fire slit 304 is communicated with the concave groove 30, the outer circumference side of the inner ring fire slit 304 is communicated with one end of the inner ring fire hole 301, the other end of the inner ring fire hole 301 is communicated with the inner ring air mixing cavity 41, and then the inner ring fire slit 304 can be communicated with the inner ring air mixing cavity 41. Therefore, the gas in the inner ring gas mixing cavity 41 can enter the bottom area of the concave groove 30 through the inner ring fire holes 301 and the inner ring fire slits 304 to burn, so that the inner ring flame forms slit fire, and the slit fire can be more stable and difficult to temper or extinguish in the state of small inner ring fire, so that the burner can be more suitable for low-temperature cooking requirements.

In some embodiments, the inner ring fire holes 301 extend obliquely upward from the top wall of the inner ring gas mixing chamber 41 toward the center of the recessed groove 30 until the top ends of the inner ring fire holes 301 communicate with the inner ring fire slits 304. A plurality of inner ring fire holes 301 are circumferentially arranged circumferentially around the circumferential side of the inner ring fire slit 304.

Referring to fig. 10 to 13, in some embodiments, the middle ring fire hole 302 is a circular fire hole structure, the middle ring fire hole 302 extends obliquely upward from the top wall of the middle ring air mixing cavity 42 toward the center of the concave groove 30, the bottom end of the middle ring fire hole 302 is communicated with the middle ring air mixing cavity 42, and the top end of the middle ring fire hole 302 is communicated with the concave groove 30. Accordingly, the fuel gas in the middle ring gas mixing chamber 42 can enter the concave groove 30 through the middle ring fire hole 302 for combustion. A plurality of pilot holes 302 are circumferentially arranged circumferentially spaced around the peripheral side wall of the recessed groove 30.

In some embodiments, the plurality of middle ring fire holes 302 are circumferentially and inwardly spirally distributed clockwise or counterclockwise, so that flames ejected from the plurality of middle ring fire holes 302 can form a spiral fire structure, thereby improving the combustion efficiency of the burner.

Referring to fig. 10 to 13, in some embodiments, the outer ring fire holes 303 are in a circular fire hole structure, the outer ring fire holes 303 extend obliquely upward from the top wall of the outer ring air mixing cavity 43 toward the center of the concave groove 30, the bottom ends of the outer ring fire holes 303 are communicated with the outer ring air mixing cavity 43, and the top ends of the outer ring fire holes 303 are communicated with the concave groove 30. Accordingly, the fuel gas in the outer ring gas mixing chamber 43 can enter the concave groove 30 through the outer ring flame holes 303 to burn. A plurality of outer ring fire holes 303 are circumferentially arranged circumferentially at intervals on the circumferential side wall of the recessed groove 30.

In some embodiments, the outer ring fire holes 303 are circumferentially and inwardly spirally distributed clockwise or anticlockwise, so that flames sprayed from the outer ring fire holes 303 can form a spiral fire structure, and further, the combustion efficiency of the combustor is improved.

In some embodiments, the internal rotation direction of the outer ring fire holes 303 is identical to the internal rotation direction of the middle ring fire holes 302, i.e., the middle ring fire holes 302 and the outer ring fire holes 303 are all circumferentially and internally rotated clockwise, or are all circumferentially and internally rotated counterclockwise, so that the middle ring flame and the outer ring flame are both in a clockwise rotation fire structure or are both in a counterclockwise rotation fire structure.

Referring to fig. 10 to 13, in some embodiments, the peripheral side groove wall of the concave groove 30 is provided with flame stabilizing slots 305, the flame stabilizing slots 305 are annular, and the flame stabilizing slots 305 are arranged around the peripheral side groove of the concave groove 30. The center side of the flame holding gap 305 is communicated with the concave groove 30, and the outer peripheral side of the flame holding gap 305 is communicated with the middle ring air mixing chamber 42, so that the fuel gas in the middle ring air mixing chamber 42 can enter the concave groove 30 through the flame holding gap 305 for combustion. The flame stabilizing slots 305 are arranged between the area of the middle ring flame holes 302 and the area of the outer ring flame holes 303, namely, the middle ring flame holes 302 are arranged at intervals on the lower side of the flame stabilizing slots 305, and the outer ring flame holes 303 are arranged at intervals on the upper side of the flame stabilizing slots 305. Therefore, the stable flame generated in the flame stabilizing slit 305 can well isolate the outer ring flame and the middle ring flame and stabilize the outer ring flame and the middle ring flame.

In some embodiments, the flame stabilizing holes 306 are formed on the flame cover 3, and the flame stabilizing holes 306 are used for communicating the middle ring air mixing cavity 42 and the flame stabilizing slots 305. Specifically, the flame stabilizing hole 306 extends along the axial direction of the fire cover 3, the top end of the flame stabilizing hole 306 is communicated with the flame stabilizing slot 305, and the other end of the flame stabilizing hole 306 is communicated with the middle ring air mixing cavity 42. The flame stabilizing holes 306 are provided in plurality, and the plurality of flame stabilizing holes 306 are circumferentially arranged circumferentially around the circumference of the flame stabilizing slit 305 at intervals.

Referring to fig. 4 to 12, in some embodiments, an ejector tube is provided on the stove base 21, and the ejector tube is used to connect with a gas supply pipeline of the gas, so as to provide the gas for each gas mixing cavity. Specifically, the injection pipe is provided with a plurality of injection pipes, including inner ring injection pipe 231, middle ring injection pipe 232 and outer ring injection pipe 233, one end of inner ring injection pipe 231 is linked together with inner ring air mixing cavity 41, one end of middle ring injection pipe 232 is linked together with middle ring air mixing cavity 42, one end of outer ring injection pipe 233 is linked together with outer ring air mixing cavity 43, and then provides the gas for inner ring air mixing cavity 41, middle ring air mixing cavity 42 and outer ring air mixing cavity 43 respectively.

Referring to fig. 3-5, in some embodiments, the air supply line includes a main vent line 51, an inner ring vent line 52, an intermediate ring vent line 53, and an outer ring vent line 54.

The main vent pipe 51 is disposed in the mounting cavity 10, one end of the main vent pipe 51 is used for connecting a gas source, and the other end is used for respectively conveying and supplying gas to the inner ring gas mixing cavity 41, the middle ring gas mixing cavity 42 and the outer ring gas mixing cavity 43. The main breather pipe 51 is provided with a main control valve 511, and the main control valve 511 is used for controlling the on-off of the main breather pipe 51, so as to realize the on-off control of the gas supply in each mixing cavity.

Referring to fig. 3 to 5, an inner ring vent pipe 52 is disposed between the burner 2 and the main vent pipe 51, the inner ring vent pipe 52 is used for connecting the inner ring air mixing chamber 41 and the main vent pipe 51, and one end of the inner ring vent pipe 52 is communicated with the inner ring injection pipe 231 and then is communicated with the inner ring air mixing chamber 41; the other end of the inner ring vent pipe 52 is connected with the main vent pipe 51, so that the fuel gas in the main vent pipe 51 is sequentially conveyed into the inner ring mixing cavity 41 through the inner ring vent pipe 52 and the inner ring injection pipe 231, and fuel gas supply is provided for the inner ring mixing cavity 41.

In some embodiments, the end of the inner ring vent pipe 52 connected to the main vent pipe 51 is provided with a proportional valve 521, and the inner ring vent pipe 52 communicates with the main vent pipe 51 through the proportional valve 521. Therefore, the proportional valve 521 can control the gas amount of the inner ring breather pipe 52 and the inner ring gas mixing cavity 41, and further control the size of the inner ring flame, so that the inner ring flame forms an inner ring small fire state, which is more beneficial to meeting the requirement of low-temperature cooking.

In some embodiments, proportional valve 521 may allow for flow adjustments for the low, medium, and high gears. Therefore, the inner ring flame can have three different gear flames to meet different low-temperature cooking requirements.

It should be noted that, when the proportional valve 521 is in the lowest gear, the inner ring flame may be in the inner ring minimum fire state, so as to be more beneficial to meeting the requirement of low temperature cooking, i.e. the inner ring minimum fire state is the low temperature cooking gear.

Referring to fig. 3 to 5, a middle ring vent pipe 53 is disposed between the burner 2 and the main vent pipe 51, the middle ring vent pipe 53 is used for connecting the inner ring air mixing chamber 41 and the proportional valve 521, one end of the middle ring vent pipe 53 is communicated with the middle ring injection pipe 232 and then is communicated with the middle ring air mixing chamber 42, and the other end of the middle ring vent pipe 53 is communicated with the proportional valve 521 through a first switch valve 531 and then is communicated with the main vent pipe 51 through the proportional valve 521. The fuel gas in the main vent pipe 51 can be delivered into the middle ring gas mixing chamber 42 through the proportional valve 521, the first switch valve 531, the middle ring vent pipe 53 and the middle ring injection pipe 232 to supply fuel gas to the middle ring gas mixing chamber 42. Therefore, the first switching valve 531 can switch the middle ring flame, and the proportional valve 521 can control the size of the middle ring flame.

It should be noted that when the proportional valve 521 is in different gear positions, the middle ring flame may have three different flame cooking gear positions, so as to meet the requirements of cooking temperature.

Referring to fig. 3 to 5, an outer ring ventilation pipe 54 is disposed between the burner 2 and the main ventilation pipe 51, the outer ring ventilation pipe 54 is used for connecting the outer ring air mixing chamber 43 and the proportional valve 521, one end of the outer ring ventilation pipe 54 is communicated with the outer ring injection pipe 233 and then is communicated with the outer ring air mixing chamber 43, and the other end of the outer ring ventilation pipe 54 is communicated with the proportional valve 521 through a second switch valve 541 and then is communicated with the main ventilation pipe 51 through the proportional valve 521. The fuel gas in the main vent pipe 51 can be delivered into the outer ring mixing chamber 43 through the proportional valve 521, the second switch valve 541, the outer ring vent pipe 54 and the outer ring injection pipe 233, and the fuel gas supply is provided for the outer ring mixing chamber 43. Therefore, the second switching valve 541 can switch the outer ring flame, and the proportional valve 521 can control the size of the outer ring flame.

It should be noted that, when the proportional valve 521 is in different gear positions, the outer ring flame may also have three different flame cooking gear positions, so as to meet the requirements of cooking temperature.

By adjusting the gear position of the proportional valve 521, the burner may have at least 9 flame gear positions with different heat loads from low to high in cooperation with the on/off control of the first on/off valve 531 and the second on/off valve 541. The heat load of the 1 st gear is lowest, namely the 1 st gear is the lowest gear. The 9 gear has the highest heat load, namely the 9 gear is the quick-fried cooking gear.

Fig. 14 is a schematic view of the structure of the pot holder 6 in fig. 2. Fig. 15 is a schematic view of the structure of fig. 14 at another viewing angle. Fig. 16 is a cross-sectional view of fig. 14. Fig. 17 is a schematic cross-sectional view of fig. 1. Fig. 18 is an enlarged cross-sectional view of region B of fig. 17.

Referring to fig. 14 to 18, the pot stand 6 is disposed above the top surface of the housing 1 and is mounted above the through hole. The pot holder 6 is ring-shaped and is arranged around the outer circumference of the top area of the burner protruding through hole, i.e. the pot holder 6 is arranged around the outer circumference of the top of the burner 2 and the fire cover 3 protruding through hole.

The center of the pot holder 6 is provided with an assembly groove 61 which is matched with the top of the burner, and the top of the protruding through hole of the burner can be arranged in the assembly groove 61 in an adaptive manner. Meanwhile, the top surface of the pot holder 6 is provided with an energy collecting groove 60 with a concave center, the energy collecting groove 60 is of a concave center structure, and the depth of the energy collecting groove 60 gradually deepens in the direction close to the center of the energy collecting groove 60. The bottom of the energy accumulating groove 60 communicates with the top of the fitting groove 61. Therefore, when the pot holder 6 is erected above the through hole and the burner, the top of the burner can be just accommodated in the assembling groove 61, so that the top opening of the concave groove 30 is positioned at the top opening of the assembling groove 61, and the top opening of the concave groove 30 is directly communicated with the bottom center of the energy collecting groove 60.

Referring to fig. 17 and 18, when the pot holder 6 is installed above the through hole and the burner, the tops of the pot holder 6 and the recess 30 protrude and are higher than the top opening of the recess 30. Because the energy-gathering groove 60 and the concave groove 30 are of a central concave structure, when the pot body G is erected above the top of the pot frame 6, flames in the concave groove 30 can gather in the outline range of the concave groove 30 and the energy-gathering groove 60 for combustion, the temperature of the top spaces of the concave groove 30 and the energy-gathering groove 60 is increased, heat exchange with the pot body G is further improved, and heat exchange between the flames in the concave groove 30 and the outer space of the pot frame 6 is reduced. Particularly, when low-temperature cooking is needed, the stability of the inner ring flame in the small fire state can be improved under the condition that the inner ring flame is in the small fire state, so that the low-temperature cooking requirement of the gas stove is met.

Referring to fig. 18, in some embodiments, the height difference between the inner ring fire hole 301 and the top opening of the concave groove 30 is H1, and the height difference between the top opening of the concave groove 30 and the top surface of the pot rack 6 is H2. Therefore, when the pot body G is mounted on the top surface of the pot frame 6, the sum of H1 and H2 is the distance between the inner ring fire hole 301 and the bottom surface of the pot body G. When the low-temperature cooking is performed, when the sum of H1 and H2 is more than 20mm, the distance between the inner ring flame and the bottom of the pot body G can be effectively increased, the heating effect of the inner ring flame on the pot body G is weakened, and the low-temperature cooking pot is more suitable for a low-temperature cooking function. Meanwhile, through the central concave structure of the concave groove 30, the inner ring fire hole 301 is matched with the bottom area of the concave groove 30, so that the height difference H1 between the inner ring fire hole 301 and the top opening of the concave groove 30 is large enough, inner ring flames gather in the outline of the concave groove 30 to burn, the height difference H2 between the top opening of the concave groove 30 and the top surface of the pot rack 6 is small enough, heat exchange between the flame and the outside from the area between the top opening of the concave groove 30 and the top surface of the pot rack 6 is reduced, the temperature of the top space of the concave groove 30 is further improved, and the stability of the inner ring flames in a small fire state is improved, so that the low-temperature cooking requirement of the gas stove is met.

When it is to be noted, the height of the inner ring fire hole 301 is the height of the top end opening of the inner ring fire hole 301, i.e. the height of the position where the inner ring fire seam 304 is located.

In some embodiments, the difference in height between the inner ring fire holes 301 and the top surface of the pot rack 6 is greater than or equal to 30mm. Therefore, the inner ring flame and the bottom surface of the cooker can be further ensured to have enough distance, and the low-temperature cooking requirement is further met.

In some embodiments, the height difference H1 between the top end opening of the inner ring fire hole 301 and the top opening of the recessed groove 30 is 30mm or more, the height difference H2 between the top opening of the recessed groove 30 and the top surface of the pot holder 6 is 20mm or less, and the height difference between the inner ring fire hole 301 and the top surface of the pot holder 6 is 40mm or more. In the parameter design range, the depth of the concave groove 30 can be enough large, so that the height difference between the top opening of the concave groove 30 and the top surface of the pot frame 6 is reduced, the combustion stability of the inner ring in a small fire state can be ensured, and enough space between the inner ring flame and the bottom surface of the pot can be ensured, thereby meeting the low-temperature cooking requirement.

In some embodiments, the top opening of the concave trough 30 is in direct communication with the bottom opening of the energy gathering groove 60, and therefore, the difference in height between the bottom opening of the energy gathering groove 60 and the top surface of the pot holder 6 is also H2, i.e., the difference in height between the inner ring fire holes 301 and the top opening of the concave trough 30 is also greater than the difference in height between the bottom of the energy gathering groove 60 and the top surface of the pot holder 6. And through the central concave structure of the energy gathering groove 60, the heat exchange between the region between the top opening of the concave groove 30 and the top surface of the pot frame 6 and the outside can be blocked by the peripheral groove wall of the energy gathering groove 60, so that the flame gathers in the region of the concave groove 30 and the energy gathering groove 60, and the flame can only exchange heat with the outside from the region between the top opening of the energy gathering groove 60 and the top surface of the pot frame 6, thereby further improving the temperature of the top space of the concave groove 30, improving the stability of the inner ring flame in a small fire state and meeting the low-temperature cooking requirement of the gas stove.

Referring to fig. 16 to 18, in some embodiments, a ring-shaped heat insulation cavity 62 is formed in the pot frame 6, the heat insulation cavity 62 is circumferentially arranged at the periphery of the assembly groove 61, and when the pot frame 6 is erected above the through hole, the top of the burner is accommodated in the assembly groove 61, the heat insulation cavity 62 can insulate the periphery of the top of the burner, so that heat dissipation of the pot frame 6 is reduced, and combustion efficiency of the burner is improved.

In some embodiments, the top region of the insulating cavity 62 protrudes from the top opening of the mounting groove 61. When the pot holder 6 is erected above the through hole, the top of the burner is accommodated in the assembly groove 61, the top of the heat insulation cavity 62 can protrude out of the top opening of the concave groove 30, and the top area of the heat insulation cavity 62 can encircle the top opening of the concave groove 30, so that heat exchange between the flame and the outside from the area between the top opening of the concave groove 30 and the top surface of the pot holder 6 is further reduced, and the stability of the inner ring flame in a small fire state is improved.

In some embodiments, the heat insulation cavity 62 is filled with a heat insulation material, and the heat insulation material is a material with a low heat conductivity coefficient, such as heat insulation cotton, so that the heat insulation performance of the heat insulation cavity 62 is ensured, the heat conductivity coefficient of the whole pot rack 6 is reduced, the heat dissipation of flame from the pot rack 6 is reduced, and the combustion efficiency of the combustor is improved.

In some embodiments, the surface of the pot holder 6 is sprayed with a heat-resistant heat-insulating coating, and the heat-insulating coating is made of a material with a lower heat conductivity coefficient, so that the overall heat conductivity coefficient of the pot holder 6 can be reduced, the heat dissipation of flame from the pot holder 6 is reduced, and the combustion efficiency of the burner is improved.

Referring to fig. 14 to 18, in some embodiments, the energy collecting groove 60 is internally provided with a supporting block 63 extending upwards, and a top surface of the supporting block 63 forms a supporting surface for supporting a pot. The support surface protrudes from the top opening of the energy gathering groove 60 and forms the top surface of the pot holder 6. When the pan is placed on the supporting surface, the bottom surface of the pan and the supporting surface are positioned on the same plane.

In some embodiments, the support blocks 63 are provided in plurality, with the plurality of support blocks 63 being spaced around the center of the energy concentrating groove 60. The top surfaces of the plurality of support blocks 63 are formed with support surfaces and commonly support the bottom surface of the pot.

Referring to fig. 14 to 18, in some embodiments, a heat dissipation channel 64 is formed between the adjacent support blocks 63 and the bottom surface of the energy collecting groove 60. Because of the concave structure of the center of the energy collecting groove 60, the depth of the heat dissipation channel 64 gradually becomes deeper in the direction toward the center of the energy collecting groove 60. The depth of the heat dissipation channels 64 is smaller than the height difference H1 between the inner ring fire holes 301 and the top opening of the concave groove 30, so as to reduce heat exchange between the flame in the concave groove 30 and the outside from the heat dissipation channels 64.

Referring to fig. 14 to 18, in some embodiments, the bottom of the pot stand 6 is provided with supporting feet 65, and the pot stand 6 is supported on the top surface of the housing 1 by the supporting feet 65, so that a space is formed between the bottom of the pot stand 6 and the top surface of the housing 1, and the space area forms a gas supplementing channel 650. Meanwhile, a gap is formed between the peripheral side groove wall of the fitting groove 61 and the peripheral wall of the burner top, an air-supplementing gap 66 is formed in the gap region, the bottom end of the air-supplementing gap 66 communicates with the air-supplementing channel 650, and the top end of the air-supplementing gap 66 communicates with the bottom center of the energy-collecting groove 60. Therefore, during the flame combustion process of the burner, part of the external gas can flow from the gas supplementing channel 650 and the gas supplementing gap 66 into the profiles of the energy gathering groove 60 and the concave groove 30, so as to supplement air for the combustion of the flame, and improve the combustion efficiency of the burner. Meanwhile, during low-temperature cooking, air flowing into the energy-collecting groove 60 and the concave groove 30 from the air-supplementing gap 66 can stabilize the flame of the inner ring small fire, so that the flame stabilizing effect is achieved, and the inner ring small fire is not easy to temper or extinguish.

Referring to fig. 17 and 18, in some embodiments, the top end of the vent gap 213 is exposed to the top surface of the housing 1, and the bottom end of the top air compensating gap 66 of the vent gap 213 is connected. Therefore, the air in the air supplementing cavity 211 can also enter the air supplementing gap 66 through the air ventilation gap 213, and further enter the energy collecting groove 60 and the concave groove 30 through the top end opening of the air supplementing gap 66, so as to supplement the air for the flame combustion in the concave groove 30.

Referring to fig. 14 to 18, in some embodiments, a gas-filling ring groove 601 is concavely formed on a peripheral side wall of a bottom of the energy-collecting groove 60, and the gas-filling ring groove 601 is annular and circumferentially arranged on a peripheral side of a top opening of the assembly groove 61. Meanwhile, the center of the air compensating ring groove 601 is directly opposite to the top opening of the concave groove 30, the top end of the air compensating gap 66 is communicated with the center of the air compensating ring groove 601, and the top end opening of the air compensating gap 66 is positioned between the center of the air compensating ring groove 601 and the top opening of the concave groove 30.

In some embodiments, when the flame in the concave groove 30 burns, when the air in the concave groove 30 flows through the heat dissipation channel 64, a negative pressure is formed at the connection area between the air supplementing ring groove 601 and the top end of the air supplementing gap 66, so that the air in the air supplementing gap 66 flows to the air supplementing ring groove 601 and flows into the concave groove 30 to supplement the air for the flame in the concave groove 30.

In other embodiments, when flame burns in the concave groove 30, air may enter the air-compensating ring groove 601 from the air-compensating ring groove 601 to perform air-discharging and heat-dissipating.

Based on the technical scheme, the embodiment of the utility model has the following advantages and positive effects:

in the gas stove provided by the embodiment of the utility model, the pot rack 6 is arranged on the periphery of the top of the burner, and the top of the burner protrudes out of the through hole on the top surface of the shell 1 by utilizing the assembly groove 61 of the pot rack 6 and then can extend into the assembly groove 61, so that the pot rack 6 can be arranged around the periphery of the top of the burner, the heat exchange between the top of the burner and the outside is reduced, the temperature of the top space of the energy gathering groove 60 is improved, the heat exchange with the pot body is further improved, the stability in a small fire state is improved, and the low-temperature cooking requirement of the gas stove is met.

While the utility model has been described with reference to several exemplary embodiments, it is to be understood that the terminology used is intended to be in the nature of words of description and of limitation. As the present utility model may be embodied in several forms without departing from the spirit or essential characteristics thereof, it should also be understood that the above-described embodiments are not limited by any of the details of the foregoing description, but rather should be construed broadly within its spirit and scope as defined in the appended claims, and therefore all changes and modifications that fall within the meets and bounds of the claims, or equivalences of such meets and bounds are therefore intended to be embraced by the appended claims.

Claims (15)

1. A gas cooker, characterized by comprising:

a housing forming a housing of the gas range; a mounting cavity is formed in the shell, and a through hole communicated with the mounting cavity is formed in the top surface of the shell;

the burner is arranged in the mounting cavity, and the top of the burner protrudes out of the through hole and is exposed out of the top surface of the shell;

the pot rack is arranged above the top surface of the shell and is erected above the through hole; the pot rack is annular, an assembly groove matched with the top of the burner is formed in the center of the pot rack, and an energy gathering groove with the center recessed downwards is formed in the top surface of the pot rack; the bottom of the energy gathering groove is communicated with the top of the assembly groove;

When the pot rack is erected above the through hole, the pot rack is arranged on the periphery of the top of the burner in a surrounding mode, the top of the pot rack is higher than the top of the burner, and the top of the burner is accommodated in the assembly groove.

2. The gas cooker as claimed in claim 1, wherein a ring-shaped heat insulation chamber is formed in the pot holder, the heat insulation chamber is circumferentially arranged at a circumferential side of the fitting groove, and a top region of the heat insulation chamber protrudes from a top opening of the fitting groove.

3. The gas cooker of claim 2, wherein the heat insulating chamber is filled with a heat insulating material.

4. The gas cooker as claimed in claim 1, wherein the energy-collecting groove is internally provided with a supporting block extending upwards in a protruding manner, the top surface of the supporting block forms a supporting surface, and the supporting surface protrudes out of the top opening of the energy-collecting groove and forms the top surface of the pot rack;

the plurality of support blocks are arranged around the center of the energy collecting groove at intervals;

and a heat dissipation channel is formed between the adjacent supporting blocks and the bottom surface of the energy collecting groove, and the depth of the heat dissipation channel gradually becomes deeper in the direction towards the center of the energy collecting groove.

5. The gas cooker as claimed in claim 1, wherein the pot frame bottom is convexly provided with supporting feet, and the supporting feet are supported on the top surface of the housing, so that a gas supplementing channel is formed between the pot frame bottom and the top surface of the housing;

an air supplementing gap is formed between the peripheral side groove wall of the assembly groove and the peripheral wall of the top of the burner, the bottom end of the air supplementing gap is communicated with the air supplementing channel, and the top end of the air supplementing gap is communicated with the bottom center of the energy gathering groove.

6. The gas cooker as claimed in claim 5, wherein a circumferential side wall of the bottom of the energy collecting groove is concavely provided with a gas supplementing ring groove, and the gas supplementing ring groove is ring-shaped and circumferentially arranged on a circumferential side of the top opening of the fitting groove.

7. The gas cooker as claimed in any one of claims 1 to 6, wherein a top surface of the burner is provided with a concave groove having a center depressed downward; a plurality of inner ring fire holes which are arranged around the center of the concave groove are formed in the groove side wall of the concave groove;

when the pot rack is erected above the through hole, the top opening of the concave groove is positioned at the top opening of the assembly groove and is directly communicated with the bottom center of the energy gathering groove.

8. The gas cooker of claim 7, wherein a height difference between the inner ring fire hole and a top opening of the concave groove is greater than a height difference between a bottom of the energy collecting groove and a top surface of the pot holder.

9. The gas range of claim 7, wherein the burner comprises a burner and a fire cover;

an air inlet channel extending vertically is arranged in the center of the furnace end;

the fire cover is arranged at the top of the furnace end, and an inner ring air mixing cavity is enclosed between the bottom surface of the fire cover and the top surface of the furnace end;

the concave groove is formed on the top surface of the fire cover, and the top of the concave groove is communicated with the top of the air inlet channel;

the inner ring fire hole is communicated with the inner ring air mixing cavity and the concave groove;

the top parts of the furnace end and the fire cover protrude out of the through hole and extend into the assembly groove.

10. The gas cooker of claim 9, wherein an inner ring fire slit is arranged on a peripheral side wall of a joint of the bottom of the concave groove and the gas inlet channel, and the inner ring fire slit is annular and is arranged around the centers of the concave groove and the gas inlet channel;

one end of the inner ring fire hole is communicated with the inner ring mixing cavity, and the other end of the inner ring fire hole is communicated with the inner ring fire seam.

11. The gas range of claim 9, wherein the burner comprises a burner base and a burner cover;

a furnace chamber with an opening at the top is formed in the furnace seat;

the furnace cover is arranged in the furnace chamber, the center of the furnace cover is provided with the air inlet channel, a ventilation cavity is formed between the bottom surface of the furnace cover and the bottom surface of the furnace chamber, and the center of the ventilation cavity is communicated with the bottom of the air inlet channel;

the inner ring air mixing cavity is formed between the top surface of the furnace cover and the bottom surface of the fire cover.

12. The gas range according to claim 11, wherein a ventilation gap is formed between an outer peripheral wall of the cover and a peripheral side wall of the cavity, a bottom end of the ventilation gap is communicated with the ventilation cavity, and a top end of the ventilation gap is exposed to a top surface of the housing.

13. The gas cooker as claimed in claim 2, wherein the burner has a top surface provided with a concave groove having a center depressed downward; the top region of the insulating cavity can surround the top opening of the recessed channel when the top of the burner is received in the mounting channel.

14. The gas cooker as claimed in claim 4, wherein the burner has a top surface provided with a concave groove having a center depressed downward; a plurality of inner ring fire holes which are arranged around the center of the concave groove are formed in the groove side wall of the concave groove;

The depth of the heat dissipation channels is smaller than the height difference between the inner ring fire holes and the top openings of the concave grooves.

15. The gas cooker as claimed in claim 6, wherein the burner has a top surface provided with a concave groove having a center depressed downward;

the center of the air supplementing ring groove is directly opposite to and communicated with the top opening of the concave groove, and the top end of the air supplementing gap is communicated with the center of the air supplementing ring groove.