CN114076311A

CN114076311A - Stove burner

Info

Publication number: CN114076311A
Application number: CN202010843000.3A
Authority: CN
Inventors: 方晓艳; 李林; 俞瑜
Original assignee: Ningbo Fotile Kitchen Ware Co Ltd
Current assignee: Ningbo Fotile Kitchen Ware Co Ltd
Priority date: 2020-08-20
Filing date: 2020-08-20
Publication date: 2022-02-22
Anticipated expiration: 2040-08-20
Also published as: CN114076311B

Abstract

The invention discloses a stove burner which comprises a base, a driving mechanism and a plurality of outer ring fire cover units, wherein the outer ring fire cover units are arranged on the top surface of the base in a surrounding mode around the central portion of the base, the outer ring fire cover units are pivoted on the base and can rotate around a pivot axis, and the driving mechanism is used for driving the outer ring fire cover units to pivot around the pivot axis so that the outer ring fire cover units form a structure which is sunken towards the central portion of the base. This cooking utensils combustor is divided into a plurality of outer ring fire lid units with traditional outer ring fire lid, outer ring fire lid unit is driven by actuating mechanism and revolves a pivot axis and rotates to make a plurality of outer ring fire lid units form the sunk structure that matches with the bottom of a boiler shape of sharp pot, make each fire hole on the outer ring fire lid unit roughly equal with the distance at the bottom of a boiler of sharp pot, be convenient for utilize the outer flame heating of flame, improve the homogeneity that cooking utensils combustor heated, still can adjust the heating range at the bottom of a boiler when outer ring fire lid unit overturns simultaneously.

Description

Stove burner

Technical Field

The invention relates to a stove burner.

Background

In order to meet the requirements of different sizes and various forms of pots for cooking of users, the distance between the pot bottom and the burner is adjusted by arranging an adjustable pot support at present. When the pan is the sharp-bottomed pan, because of the fire lid of combustor is the plane, can not warp along with the bottom of a boiler, the distance between the fire hole on the fire lid and the bottom of a boiler is equidistance, the fire hole that is located the fire lid center is close to the bottom of a boiler, the fire hole that is located the fire lid edge is far away from the bottom of a boiler, and the length of stove fire tongue is certain, and both are difficult to compromise, then can lead to the stove fire contact of edge not to the bottom of a boiler, the stove fire at center can not utilize the condition of outer flame heating, reduces the heating efficiency of combustor.

Disclosure of Invention

The invention aims to solve the technical problem of low heating efficiency of a burner caused by the fact that a fire cover in the prior art cannot be adjusted according to the shape of a pot bottom, and provides the burner of a stove.

The invention solves the technical problems through the following technical scheme:

a cooktop burner, comprising:

a base;

a plurality of outer ring fire cover units, the plurality of outer ring fire cover units being annularly arranged on the top surface of the base around the central part of the base, the outer ring fire cover units being pivoted to the base and being capable of rotating around a pivot axis;

a drive mechanism for driving the outer ring fire cover units to pivot about the pivot axis so that the plurality of outer ring fire cover units form a structure which is concave towards the center of the base.

In this scheme, this cooking utensils combustor is covered traditional outer ring fire and is divided into a plurality of outer ring fire lid units, outer ring fire lid unit is driven by actuating mechanism and revolves a pivot axis and rotate, so that a plurality of outer ring fire lid forms the sunk structure that matches with the bottom of a boiler shape of sharp pot, make each fire hole on the outer ring fire lid unit roughly equal with the distance at the bottom of a boiler of sharp pot, be convenient for utilize the outer flame heating of flame, improve the homogeneity that cooking utensils combustor heated, still can adjust the scope of being heated at the bottom of a boiler when outer ring fire lid unit overturns simultaneously. When a plurality of outer ring fire lid units overturn to the coplanar, still can be used to heat the pan, satisfies user's diversified demand.

Preferably, an outer ring gas chamber is arranged in the outer ring fire cover unit, the stove burner further comprises outer ring gas pipelines which are in one-to-one correspondence with the outer ring gas chamber, and the outer ring gas pipelines are communicated with the outer ring gas chamber.

In this scheme, all be provided with outer loop gas chamber in the outer loop lid unit of angering, outer loop gas pipeline corresponds with outer loop gas chamber, ensures that outer loop lid unit of angering has sufficient gas combustion, improves the heating efficiency of cooking utensils. Meanwhile, different outer ring gas pipelines can be selectively opened and closed, different firepower is formed on the outer ring fire cover, and different heating requirements of users are met.

Preferably, the outer ring fire cover unit further comprises a gas channel assembly, and the outer ring gas pipeline is communicated with the outer ring gas chamber through the gas channel assembly; the gas channel component comprises an outer ring injection pipe and an outer ring gas nozzle, the outer ring gas nozzle is arranged on the outer peripheral surface of the outer ring gas pipeline and communicated with the outer ring gas pipeline, one end of the outer ring injection pipe is right opposite to the outlet of the outer ring gas nozzle, and the other end of the outer ring injection pipe is communicated with the outer ring gas cavity.

In this scheme, the gas in the outer loop gas pipeline jets through outer loop gas nozzle and penetrates when penetrating the pipe and penetrate the air admission and penetrate intraductally for gas and air are penetrating the pipe and outer loop gas chamber internal intensive mixing, improve the combustion efficiency of gas.

Preferably, one end of the outer ring gas pipeline, which is close to the injection pipe, is arranged along the vertical direction, the outer ring gas nozzle is arranged on the outer ring gas pipeline arranged along the vertical direction, and the outlet direction of the outer ring gas nozzle is perpendicular to the gas ejection direction of the outer ring gas pipeline.

In this scheme, the gas nozzle is located on the outer loop gas pipeline that sets up along vertical direction to the gas blowout direction of the export direction perpendicular to outer loop gas pipeline of nozzle makes nozzle spun gas be in the horizontal direction, is convenient for set up the upset of outer loop fire lid unit, ensures that the gas is spouted all the time and draws the ejector pipe, improves the security and the reliability of cooking utensils combustor.

Preferably, the number of the gas channel assemblies is two, the two gas channel assemblies are symmetrically arranged on two sides of the outer ring gas pipeline, and the outer ring gas pipeline is communicated with the outer ring gas cavity through the two gas channel assemblies.

In this scheme, two sets of gas channel subassemblies are toward outer ring gas cavity air feed simultaneously for gas and air mixing are more even, and the burning is more abundant. Two sets of gas channel subassemblies symmetry set up in outer loop gas pipeline's both sides, when outer loop fire lid unit overturns, do not influence two sets of gas channel subassemblies and supply the gas toward outer loop gas chamber indoor.

Preferably, the pivot axis coincides with an axis of the outer ring gas nozzle, and an outlet of the outer ring gas nozzle is aligned with a central part of an inlet of the outer ring ejector pipe.

In this scheme, adopt above-mentioned structural style, when outer ring fire lid upset, outer loop gas nozzle spun gas is in the outer loop all the time and draws the entry of penetrating the pipe, improves the security.

Preferably, the pivot axis, the axis of the outer ring ejector pipe and the axis of the outer ring gas nozzle coincide.

In this scheme, pivot axis, outer ring draw the axis of penetrating the pipe and the axis coincidence of outer loop gas nozzle, no matter how the outer ring fire lid unit overturns, the gas of nozzle spun is in all the time and draws the central part that penetrates the pipe entry.

Preferably, both ends of the outer ring fire cover unit along the direction of the pivot axis are pivoted to the base.

In this scheme, outer loop fire lid and base both ends pin joint, joint strength is high, and the uniformity and the stability of outer loop fire lid unit upset are good.

Preferably, the driving mechanism includes a first driving member, one end of the first driving member is connected to a side portion of the outer fire cover unit closer to the central portion of the base with respect to the pivot axis, and the first driving member drives the outer fire cover unit to pivot by being lifted and lowered with respect to the base.

In this scheme, the one end of first driving piece is connected in the bottom surface of outer ring fire lid unit and is kept away from the pivot axis, and first driving piece passes through outer ring fire lid unit of mode drive that goes up and down, easy operation. The first driving member may be driven mechanically or manually.

Preferably, the first driving part is a first worm, the driving mechanism further comprises a motor and a worm wheel, the first worm is meshed with the worm wheel, and the motor drives the worm wheel to rotate.

In the scheme, the worm and the worm wheel are driven to provide stable and reliable driving force, and the stability and the reliability are high.

Preferably, the cooking utensils combustor still includes inner ring fire lid, inner ring fire lid is located the central part of base, inner ring fire lid for the base liftable, actuating mechanism still includes the second worm, the one end of second worm connect in inner ring fire lid, the other end of second worm with the turbine meshing.

In the scheme, the worm wheel is meshed with the first worm and the second worm respectively, and when the motor drives the worm wheel, the first worm and the second worm are lifted synchronously. When the outer fire cover unit is turned upwards, the inner fire cover synchronously rises to form a planar fire cover matched with the pan; when the outer fire cover unit is turned downwards, the inner fire cover synchronously descends to form a fire cover with a concave structure to match with the pot with the pointed bottom.

Preferably, the stove burner further comprises an inner ring fire cover, the inner ring fire cover is arranged at the central part of the base, the inner ring fire cover is connected to the base and can lift relative to the base, and the driving mechanism drives the inner ring fire cover to lift.

In this scheme, inner ring fire lid liftable to match different pot bottoms, satisfy user's different demands. The inner ring fire cover provides inner ring firepower, and heating efficiency is improved.

Preferably, the driving mechanism further comprises a second driving part and a guide rail, the guide rail is arranged on the base and extends in the vertical direction, the inner ring fire cover is mounted on the guide rail and can slide along the guide rail, one end of the second driving part is connected to the inner ring fire cover, and the second driving part drives the inner ring fire cover to lift through lifting relative to the base.

In this scheme, the guide rail is used for direction inner ring fire lid to go up and down, and the second driving piece is through the mode drive inner ring fire lid of going up and down, easy operation. The second driving piece can be lifted and lowered mechanically or manually.

Preferably, the second driving part is a second worm, the driving mechanism further comprises a motor and a worm wheel, the second worm is meshed with the worm wheel, and the motor drives the worm wheel to rotate.

In this scheme, worm turbine transmission is difficult for receiving the oil smoke erosion, and stability is good, and the reliability is high.

Preferably, the stove burner further comprises an inner ring fire cover, an inner ring gas cavity is arranged in the inner ring fire cover, and the stove burner further comprises an inner ring gas pipeline communicated with the inner ring gas cavity.

In this scheme, the inner ring gas pipeline of single one-level provides the gas for inner ring fire lid, provides sufficient firepower for the cooking utensils combustor, improves heating efficiency.

Preferably, the stove burner further comprises an inner ring injection pipe and an inner ring gas nozzle, the inner ring gas nozzle and the inner ring injection pipe are both located below the inner ring fire cover, one end of the inner ring injection pipe is communicated with the inner ring gas cavity, the other end of the inner ring injection pipe is provided with the inner ring gas nozzle, and the inner ring gas nozzle is communicated with the inner ring gas pipeline.

In this scheme, inner ring gas nozzle draws the pipe with the inner ring and all establishes the below at the inner ring fire lid, the part setting of being convenient for. The gas in the inner ring gas pipeline is sprayed into the inner ring injection pipe through the inner ring gas nozzle, and simultaneously, the injection air enters the inner ring injection pipe, so that the gas and the air are fully mixed in the inner ring injection pipe and the inner ring gas cavity, and the combustion efficiency of the gas is improved.

Preferably, a plurality of fire holes radially arranged by taking the inner ring gas chamber as a center are arranged on the outer side wall surface of the inner ring fire cover at intervals, and the direction of each fire hole is inclined upwards along the direction far away from the center of the inner ring fire cover.

In the scheme, the radial fire holes enable the length of the flame to be longer and the heating area to be larger.

Preferably, a plurality of fire holes are formed on the top surface of the outer ring fire cover unit.

In this scheme, the fire hole is used for the gas to burn in outer ring fire lid unit department.

On the basis of the common knowledge in the field, the above preferred conditions can be combined randomly to obtain the preferred embodiments of the invention.

The positive progress effects of the invention are as follows: this cooking utensils combustor is divided into a plurality of outer ring fire lid units with traditional outer ring fire lid, outer ring fire lid unit is driven by actuating mechanism and revolves a pivot axis and rotates to make a plurality of outer ring fire lid units form the sunk structure that matches with the bottom of a boiler shape of sharp pot, make each fire hole on the outer ring fire lid unit roughly equal with the distance at the bottom of a boiler of sharp pot, be convenient for utilize the outer flame heating of flame, improve the homogeneity that cooking utensils combustor heated, still can adjust the heating range at the bottom of a boiler when outer ring fire lid unit overturns simultaneously. When a plurality of outer ring fire lid units overturn to the coplanar, still can be used to heat the pan, satisfies user's diversified demand.

Drawings

Fig. 1 is a schematic perspective view of a first viewing angle of a burner of a cooking appliance according to a preferred embodiment of the present invention.

Fig. 2 is an exploded structural view of a burner of a cooking appliance according to a preferred embodiment of the present invention.

Fig. 3 is a schematic perspective view of a second viewing angle of a burner of a cooking appliance according to a preferred embodiment of the present invention.

Fig. 4 is a schematic top view of a burner of a cooking appliance according to a preferred embodiment of the present invention.

FIG. 5 is a schematic cross-sectional structural view of the cooktop burner taken along line A-A in FIG. 1.

FIG. 6 is a schematic cross-sectional structural view of the cooktop burner taken along line B-B in FIG. 4.

Fig. 7 is a perspective view of an outer ring fire cover unit according to a preferred embodiment of the present invention.

Description of reference numerals:

pivot axis X

Base 1

Outer ring cap unit 2

Outer ring gas chamber 21

Gas channel assembly 22

Outer ring injection pipe 221

Outer ring gas nozzle 222

Drive mechanism 3

Motor 31

Turbine 32

First driving member 33

Second driving member 34

Outer ring gas pipeline 4

Inner ring fire cover 5

Inner ring gas chamber 51

Inner ring gas pipeline 6

Inner ring injection pipe 7

Inner ring gas nozzle 8

Fire hole 9

Detailed Description

The present invention will be more clearly and completely described below by way of examples and with reference to the accompanying drawings, but the present invention is not limited thereto.

As shown in fig. 1-7, the present embodiment discloses a stove burner, which includes a base 1, a driving mechanism 3 and a plurality of outer fire cover units 2, wherein the plurality of outer fire cover units 2 are arranged on the top surface of the base 1 around the central portion of the base 1, the outer fire cover units 2 are pivoted to the base 1 and can rotate around a pivot axis X, and the driving mechanism 3 is used for driving the outer fire cover units 2 to pivot around the pivot axis X so that the plurality of outer fire cover units 2 form a structure recessed towards the central portion of the base 1.

In this embodiment, this cooking utensils combustor divide into a plurality of outer ring fire lid units 2 with traditional outer ring fire lid, outer ring fire lid unit 2 is driven by actuating mechanism 3 and revolves a pivot axis X and rotates, so that a plurality of outer ring fire lid units 2 form the sunk structure that matches with the bottom of a boiler shape of sharp pot, make each fire hole on outer ring fire lid unit 2 roughly equal with the distance at the bottom of a boiler, be convenient for utilize the outer flame heating of flame, improve the homogeneity of cooking utensils combustor heating, the scope of being heated of adjustable bottom of a boiler when outer ring fire lid unit 2 overturns simultaneously. When a plurality of outer ring fire cover units 2 are turned to the same plane, the heating pan can also be used for heating the pan, so that the diversified requirements of users are met.

As shown in fig. 2 and 7, each outer ring fire cover unit 2 is provided therein with an outer ring gas chamber 21, the stove burner further includes outer ring gas pipes 4 corresponding to the outer ring gas chambers 21 one by one, and the outer ring gas pipes 4 are communicated with the outer ring gas chambers 21. The plurality of outer ring gas pipelines 4 provide enough gas for the cooker burner to burn, and the heating efficiency of the cooker is improved. Meanwhile, different outer ring gas pipelines 4 can be selectively opened and closed, different firepower is formed on the outer ring fire cover, and different heating requirements of users are met.

As shown in fig. 5, the outer ring fire cover unit 2 further includes a gas passage assembly 22, and the gas passage assembly 22 includes an outer ring ejector pipe 221 and an outer ring gas nozzle 222. Outer loop gas pipeline 4 includes vertical section and horizontal segment, outer loop gas nozzle 222 locate outer loop gas pipeline 4 vertical section on and communicate with outer loop gas pipeline 4 to outer loop gas nozzle 222's export direction perpendicular to outer loop gas pipeline 4's gas blowout direction makes nozzle spun gas be located the horizontal direction, is convenient for set up the upset of outer loop fire lid unit 2, ensures that the gas spouts the outer loop all the time and draws a tub 221, improves the security and the reliability of cooking utensils combustor. One end of the outer ring injection pipe 221 faces the outlet of the outer ring gas nozzle 222, and the other end of the outer ring injection pipe 221 is communicated with the outer ring gas chamber 21. The gas in the outer ring gas pipeline 4 is sprayed into the injection pipe through the outer ring gas nozzle 222, and simultaneously, the air is injected into the injection pipe, so that the gas and the air are fully mixed in the outer ring injection pipe 221 and the outer ring gas chamber 21, and the combustion efficiency of the gas is improved.

The number of the gas channel assemblies 22 is two, the two groups of gas channel assemblies 22 are symmetrically arranged on two sides of the outer ring gas pipeline 4 relative to the axis of the outer ring gas pipeline 4, and the outer ring gas pipeline 4 is communicated with the outer ring gas cavity 21 through the two groups of gas channel assemblies 22. Two sets of gas channel subassembly 22 are simultaneously to outer ring gas cavity 21 air feed for gas and air mixing are more even, and the gas is more abundant in burning on outer ring fire cover unit 2. Two sets of gas channel subassemblies 22 symmetry set up in the both sides of outer loop gas pipeline 4, and when outer loop fire lid unit 2 overturned, two sets of gas channel subassemblies 22 all can keep supplying the gas toward outer loop gas cavity 21 in.

As shown in fig. 5, the pivot axis X coincides with the axis of the outer ring gas nozzle 222, and the outlet of the outer ring gas nozzle 222 is aligned with the central portion of the inlet of the outer ring ejector pipe 221. The outer ring gas nozzle 222 is located on the rotation axis, and when the outer ring fire cover unit 2 is turned over, gas ejected from the outer ring gas nozzle 222 is always located in the inlet of the outer ring injection pipe 221, so that the safety is improved. The pivot axis X, the axis of the outer ring ejector pipe 221 and the axis of the outer ring gas nozzle 222 coincide, and when the outer ring fire cover unit 2 is turned over, the gas ejected from the outer ring gas nozzle 222 is always located in the center of the inlet of the outer ring ejector pipe 221.

The two ends of the outer ring fire cover unit 2 along the direction of the pivot axis X are pivoted on the base 1, so that the consistency and the stability of the outer ring fire cover unit 2 during overturning are improved.

As shown in fig. 2, the driving mechanism 3 includes a first driving member 33, one end of the first driving member 33 is connected to a side portion of the outer cap unit 2 closer to the center portion of the base 1 with respect to the pivot axis X, and the first driving member 33 drives the outer cap unit 2 to pivot by being raised and lowered with respect to the base 1. One end of the first drive member 33 is connected to the underside of the outer fire cover unit 2 and away from the pivot axis X, increasing the arm of force and reducing the drive force. The first driving member 33 drives the outer ring cap unit 2 in a lifting manner. The first drive member 33 may be driven mechanically or manually. The first driving member 33 is a first worm, the driving mechanism 3 further includes a motor 31 and a worm wheel 32, the first worm is meshed with the worm wheel 32, and the motor 31 drives the worm wheel 32 to rotate. The worm and the worm wheel are driven to provide stable and reliable driving force.

The stove combustor further comprises an inner ring fire cover 5, the inner ring fire cover 5 is arranged at the central part of the base 1, and the inner ring fire cover 5 is connected to the base 1 and can be lifted relative to the base 1. The driving mechanism 3 further comprises a second driving part 34 and a guide rail (not shown in the figure), the guide rail is arranged on the base 1 and extends along the vertical direction, the inner ring fire cover 5 is arranged on the guide rail and can slide along the guide rail, one end of the second driving part 34 is connected to the inner ring fire cover 5, and the second driving part 34 drives the inner ring fire cover 5 to lift through lifting relative to the base 1. The second driving member 34 is a second worm, the second worm is meshed with the worm wheel 32, and the motor 31 drives the worm wheel 32 to rotate. The guide rail is used for guiding the inner ring fire cover 5 to ascend and descend, and the second driving piece 34 drives the inner ring fire cover 5 in an ascending and descending mode. The second driving member 34 can be lifted and lowered mechanically or manually. The worm and the worm wheel are used for transmission, so that the oil smoke cannot be corroded easily, the stability is good, and the reliability is high. The inner ring fire cover 5 provides inner ring fire power, and heating efficiency is improved. The inner ring fire cover 5 can be lifted to match with the pot bottoms in different shapes, so that different requirements of users are met.

In this embodiment, the number of the worm wheels 32 is multiple, the worm wheels 32 are respectively engaged with the first worm and the second worm, and when the motor 31 drives any one of the worm wheels 32, the worm wheel 32 drives the first worm and the second worm to lift at the same time, so that the first worm and the second worm lift synchronously. Need not to set up a plurality of motors, simplify the drive structure, drive other turbines simultaneously and rotate, other turbines play the effect of balanced moment. The other turbines are driven to rotate by a second worm arranged in the center.

Alternatively, the first and second drive members may be racks, preferably partial racks, and the worm gear 32 replaced by a pinion, the first and second drive members forming a tooth-to-pinion engagement only at locations corresponding to the pinion. Preferably, the upper and lower ends of the first and second driving parts are provided with a supporting member to support the first and second driving parts to move only in the vertical direction.

When the outer fire cover unit 2 is turned upwards, the inner fire cover 5 is lifted synchronously to form a plane fire cover matched with the pan; when the outer fire cover unit 2 is turned downwards, the inner fire cover 5 descends to form a fire cover with a concave structure to match a pot with a pointed bottom.

As shown in fig. 6, the stove burner further comprises an inner ring gas pipeline 6, an inner ring injection pipe 7 and an inner ring gas nozzle 8, wherein the inner ring gas pipeline 6, the inner ring gas nozzle 8 and the inner ring injection pipe 7 are sequentially arranged along the gas flowing direction and are located below the inner ring fire cover 5. An inner ring gas cavity 51 is arranged in the inner ring fire cover 5, one end of the inner ring injection pipe 7 is communicated with the inner ring gas cavity 51, the other end of the inner ring injection pipe 7 is provided with an inner ring gas nozzle 8, and the inner ring gas nozzle 8 is communicated with the inner ring gas pipeline 6. The inner ring gas pipeline 6 of single one-level provides the gas for inner ring fire lid 5, provides sufficient firepower for the cooking utensils combustor, improves heating efficiency. The gas in the inner ring gas pipeline 6 is sprayed into the inner ring injection pipe 7 through the inner ring gas nozzle 8, and simultaneously, the air is injected into the inner ring injection pipe 7, so that the gas and the air are fully mixed in the inner ring injection pipe 7 and the inner ring gas cavity 51, and the combustion efficiency of the gas is improved.

A plurality of fire holes 9 are formed in the outer side wall surface of the inner ring fire cover 5 at intervals, the fire holes 9 are radially arranged by taking the inner ring gas chamber 51 as the center, and the direction of each fire hole 9 is inclined upwards along the direction far away from the center of the inner ring fire cover 5. The radial fire holes 9 make the length of the flame longer and the heating area larger.

The top surface of the outer ring fire cover unit 2 is provided with a plurality of fire holes 9. The fire holes 9 are used for combustion of gas at the outer ring fire cover unit 2.

In this embodiment, the vertical direction is the direction in which the cooktop burner is normally used.

While specific embodiments of the invention have been described above, it will be appreciated by those skilled in the art that this is by way of example only, and that the scope of the invention is defined by the appended claims. Various changes and modifications to these embodiments may be made by those skilled in the art without departing from the spirit and scope of the invention, and these changes and modifications are within the scope of the invention.

Claims

1. A cooktop burner, characterized in that it comprises:

a base;

2. The cooking utensils burner of claim 1, characterized in that the outer ring fire cover unit is provided with an outer ring gas chamber therein, the cooking utensils burner further comprises an outer ring gas pipe corresponding to the outer ring gas chamber one by one, the outer ring gas pipe is communicated with the outer ring gas chamber.

3. The cooktop burner of claim 2, wherein the outer ring fire cap unit further comprises a gas channel assembly through which the outer ring gas conduit communicates with the outer ring gas chamber;

the gas channel component comprises an outer ring injection pipe and an outer ring gas nozzle, the outer ring gas nozzle is arranged on the outer peripheral surface of the outer ring gas pipeline and communicated with the outer ring gas pipeline, one end of the outer ring injection pipe is right opposite to the outlet of the outer ring gas nozzle, and the other end of the outer ring injection pipe is communicated with the outer ring gas cavity.

4. The cooking utensils burner of claim 3 wherein the outer ring gas pipe is arranged along the vertical direction near one end of the injection pipe, the outer ring gas nozzle is arranged on the outer ring gas pipe arranged along the vertical direction, and the outlet direction of the outer ring gas nozzle is perpendicular to the gas ejection direction of the outer ring gas pipe.

5. The cooking utensils burner of claim 3, characterized in that the number of the gas channel components is two, two sets of the gas channel components are symmetrically arranged on two sides of the outer ring gas pipeline, and the outer ring gas pipeline is communicated with the outer ring gas chamber through two sets of the gas channel components.

6. The cooktop burner of claim 3, wherein the pivot axis is coincident with an axis of the outer ring gas nozzle, an outlet of the outer ring gas nozzle being aligned with a central portion of the inlet of the outer ring injector tube.

7. The cooktop burner of claim 3, wherein the pivot axis, the outer ring eductor tube axis, and the outer ring gas nozzle axis coincide.

8. The cooktop burner of claim 1, wherein both ends of the outer ring fire lid unit in the direction of the pivot axis are pivoted to the base.

9. The cooktop burner of claim 1, wherein the drive mechanism comprises a first drive member, one end of the first drive member is connected to a side portion of the outer ring fire cover unit closer to a center portion of the base relative to the pivot axis, and the first drive member drives the outer ring fire cover unit to pivot by being lifted relative to the base.

10. The cooktop burner of claim 9, wherein the first drive is a first worm, the drive mechanism further comprising a motor and a worm gear, the first worm being engaged with the worm gear, the motor driving the worm gear to rotate.

11. The cooktop burner of claim 10, further comprising an inner ring fire cover disposed at a central portion of the base, the inner ring fire cover being liftable with respect to the base, the drive mechanism further comprising a second worm, one end of the second worm being connected to the inner ring fire cover, the second worm being engaged with the turbine.

12. The cooking appliance burner of any one of claims 1 to 10, further comprising an inner ring fire cover, wherein the inner ring fire cover is disposed at a central portion of the base, the inner ring fire cover is connected to the base and is liftable with respect to the base, and the driving mechanism drives the inner ring fire cover to ascend and descend.

13. The cooktop burner of claim 12, wherein the drive mechanism further comprises a second drive member and a guide rail, the guide rail is disposed on the base and extends in a vertical direction, the inner ring fire cover is mounted on the guide rail and can slide along the guide rail, one end of the second drive member is connected to the inner ring fire cover, and the second drive member drives the inner ring fire cover to lift by lifting relative to the base.

14. The cooktop burner of claim 13, wherein the second drive is a second worm, the drive mechanism further comprising a motor and a worm gear, the second worm being engaged with the worm gear, the motor driving the worm gear to rotate.

15. The cooktop burner of any of claims 1-10, further comprising an inner ring fire cover having an inner ring gas chamber disposed therein, the cooktop burner further comprising an inner ring gas conduit in communication with the inner ring gas chamber.

16. The cooking utensils burner of claim 15, characterized in that the cooking utensils burner also includes an inner ring injection pipe and an inner ring gas nozzle, the inner ring gas nozzle and the inner ring injection pipe are both located below the inner ring fire cover, one end of the inner ring injection pipe is communicated with the inner ring gas chamber, the other end of the inner ring injection pipe is provided with an inner ring gas nozzle, and the inner ring gas nozzle is communicated with the inner ring gas pipeline.

17. The cooking utensils burner of claim 15 wherein the outer side wall of the inner ring fire cover is provided with a plurality of fire holes at intervals, the fire holes are radially arranged with the inner ring gas chamber as the center, and the direction of each fire hole is inclined upwards along the direction far away from the center of the inner ring fire cover.

18. The cooktop burner of claim 1, wherein the outer ring fire cap unit has a plurality of fire holes on a top surface thereof.