CN110657430A

CN110657430A - Burner for kitchen range

Info

Publication number: CN110657430A
Application number: CN201810704859.9A
Authority: CN
Inventors: 柯情; 刘晓刚; 王帅东
Original assignee: Ningbo Fotile Kitchen Ware Co Ltd
Current assignee: Ningbo Fotile Kitchen Ware Co Ltd
Priority date: 2018-06-30
Filing date: 2018-06-30
Publication date: 2020-01-07
Anticipated expiration: 2038-06-30
Also published as: CN110657430B

Abstract

The invention relates to a burner for a stove, which comprises an outer ring gas mixing chamber, wherein the outer ring gas mixing chamber comprises an inner ring wall and an outer ring wall which are annular and concentrically arranged at intervals and a bottom wall for connecting the inner ring wall and the outer ring wall, and an outer ring fire cover covers the inner ring wall and the outer ring wall, and is characterized in that: the outer ring gas mixing chamber is internally provided with secondary air supplement cells which are relatively isolated, the top wall of the outer ring fire cover is provided with main fire holes and secondary air supplement cells which are distributed at intervals along the radial direction, and the inner ring wall and/or the outer ring wall and/or the bottom wall of the outer ring gas mixing chamber is provided with an air inlet which is communicated with the outside air and the air outlet at the position corresponding to the secondary air supplement cells; compared with the prior art, the secondary air supplementing chamber has the advantages that the secondary air supplementing chamber can better supplement secondary air through the main fire holes, and simultaneously has the function of guiding liquid to the liquid containing disc, so that overflow is prevented from flowing into the combustor.

Description

Burner for kitchen range

Technical Field

The invention belongs to the technical field of gas cookers, and particularly relates to a burner for a cooker.

Background

The existing stove burner generally comprises an inner ring fire cover and an outer ring fire cover, fire holes of the inner ring fire cover and the outer ring fire cover are round fire holes which are convenient to process, but the round fire holes are easy to block during liquid overflowing, so that bad working conditions such as flameout, uneven fire and the like are caused, the customer experience is influenced, and the maintenance rate is increased; compare in circle fire hole, the condition that fire hole was stifled appears when adopting a seam fire hole to be favorable to reducing the overflow, still has the big problem of the degree of difficulty of supplementary secondary air simultaneously promptly: the inner side and the outer side of the circular fire hole can contact with sufficient secondary air, but the secondary air goes to the middle of the fire hole, because the secondary air participates in front-end combustion, the air quantity is reduced, the secondary air is difficult to supplement, the supplement quantity of the secondary air in the middle is reduced, and yellow fire and other phenomena are easily caused. For example, the Chinese patent invention with patent number ZL201510517516.8 (publication number CN105066185B) discloses a strip-seam-shaped fire hole, however, as the chinese patent application No. 201710366600.3 (publication No. CN106989393A), "a fire cover for a burner", discloses a fire cover for a burner, which includes an outer ring fire cover body, an annular outer ring wall body, an annular upper wall body, and an annular inner side wall of the outer ring fire cover body enclosing a downward opening annular gas chamber, the annular upper wall body and the annular outer side wall body are connected by a plurality of connecting ribs and a plurality of seam type outward fire hole passages communicated with the annular gas chamber are formed between the annular upper wall body and the annular outer side wall body, the seam type outward fire hole passages are obliquely and upwardly arranged from the annular gas chamber to the outer side wall of the outer ring fire cover body, and the outward opening of the strip seam-shaped outward fire hole channel is formed on the outer side wall of the outer ring fire cover body. The strip seam type outward fire hole channel of the scheme is relatively round, can be more favorable for more uniform combustion heating of gas, is convenient to implement, is not easy to block, and also has the advantages that the strip seam type outward fire hole channel is more prone to being blocked, and secondary air flows away from the middle of the strip seam type outward fire hole channel, so that air quantity is reduced, and the secondary air flows away from the middle of the fire hole more easily, and is difficult to supplement.

Disclosure of Invention

The invention aims to solve the technical problem of providing a burner for a kitchen range, which can directly pass through the inside of a gas mixing chamber of a burner fire cover to better supplement secondary air to fire holes.

The invention aims to solve another technical problem of providing a burner for a kitchen range, which can uniformly supply secondary air for fire holes, particularly strip-shaped slot type fire holes, aiming at the current technical situation.

The present invention provides a burner for a cooking stove, which can adjust the intake of secondary air, in view of the above-mentioned current state of the art.

The technical scheme adopted by the invention for solving the technical problems is as follows: this a combustor for cooking utensils, including outer ring gas mixing chamber, outer ring gas mixing chamber is including being the annular and concentric inner ring wall and the outer rampart that sets up of interval and the diapire of connecting inner ring wall and outer rampart, inner ring wall and outer rampart top cover have outer ring fire lid, its characterized in that: the outer ring gas mixing chamber is internally provided with secondary air supplement cells which are relatively isolated, the top wall of the outer ring fire cover is provided with radial main fire holes which are distributed at intervals along the circumferential direction, at least two air outlets which are matched with the secondary air supplement cells are arranged at intervals in every other one or more main fire holes, the wall part of each air outlet extends downwards to form a circle of annular wall, the annular wall is attached to the inner peripheral wall of the secondary air supplement cell, and air inlets which are communicated with the outside air and the air outlets are arranged on the inner annular wall and/or the outer annular wall and/or the bottom wall of the outer ring gas mixing chamber at positions corresponding to the secondary air supplement cells.

Wherein, if the gas flowing out from each main fire hole is uniform, the gas outlets of the outer ring fire cover can be uniformly distributed along the circumferential direction; if the gas flowing out from each main fire hole is uneven, the gas outlets of the outer ring fire cover can also be arranged unevenly along the circumferential direction, for example, the gas outlets can be arranged relatively densely in the area of the main fire hole with larger gas flow.

The secondary air supplement small chamber is of a pipeline structure, the secondary air supplement small chamber can adopt any type of pipeline in the prior art, such as a cylinder shape or a square frame shape, the secondary air supplement small chamber comprises a pipeline structure which is connected with the top wall air outlet of the outer ring fire cover and the bottom wall of the outer ring air mixing chamber and is open at the upper part and the lower part, and the bottom wall is provided with the air inlet.

In order to facilitate the installation of the secondary air supplement chamber, the secondary air supplement chamber also comprises a connecting plate which connects the bottoms of the pipelines into a whole, and the connecting plate is provided with an opening communicated with the air inlet.

In order to better realize the supplement of secondary air entering the external air to the small chamber, the invention preferably adopts a vertical arrangement mode, namely, an air inlet is positioned on the bottom wall of the outer ring air mixing chamber and is simultaneously used as a channel for guiding overflowing liquid; when the overflow liquid guiding channel is used, the overflow liquid can be directly guided to the liquid containing disc; therefore, a further preferable scheme is that the liquid mixing device further comprises a liquid containing disc and an inner ring gas mixing chamber arranged on the inner periphery of the outer ring gas mixing chamber, and the outer ring gas mixing chamber is independently supported on the liquid containing disc by the inner ring gas mixing chamber. The gap formed by the bottom wall of the outer ring air mixing chamber and the liquid containing disc forms a secondary air inlet channel which directly supplies air to the interior of the outer ring air mixing chamber, and compared with the prior art that the air is supplied laterally through the lower part of the outer ring air mixing chamber through the main fire hole, the secondary air can be supplied uniformly to the main fire hole which is radially arranged and is in a strip seam type; meanwhile, the outer ring air mixing chamber is independently supported by the inner ring air mixing chamber, a circle of the bottom of the outer ring air mixing chamber is a secondary air inlet channel, the amount of air supplied to the inner ring by the secondary air inlet channel is increased, the full combustion of the inner ring is facilitated, the supply resistance of secondary air to the flame of the inner ring can be reduced, and the supply of the secondary air is quicker; in addition, soup has the function of guiding liquid to the liquid containing disc in a directional mode, the soup is easy to clean, the phenomenon that the liquid containing disc is blackened due to the fact that overflowing liquid is burnt to be dry can be effectively prevented, the traditional split structure formed by the outer ring air mixing chamber, the inner ring air mixing chamber and the base is adopted during cleaning, only the base and the liquid containing disc which is basically in a plane are left, and cleaning is convenient.

In order to realize the transmission of the outer ring gas channel of the outer ring gas mixing chamber independently supported on the liquid containing disc, a base is also arranged below the liquid containing disc, the base is provided with an inner ring gas channel and an outer ring gas channel arranged at the periphery of the inner ring gas channel at the position corresponding to the inner ring gas mixing chamber, at least one transmission channel is arranged between the outer ring gas channel and the outer ring gas mixing chamber, and the transmission channel is used for transmitting the mixed primary air and the outer ring gas from the outer ring gas channel to the outer ring gas mixing chamber.

Furthermore, a central annular channel for inner ring gas to enter is arranged in the center of the base, an annular cavity which is vertically communicated with the central annular channel is arranged in the center of the inner ring gas mixing chamber, and the central annular channel and the annular cavity jointly form the inner ring gas channel. More preferably, the inner ring gas channel adopts a circular ring channel, so that gas can be filled in the central ring channel and the ring cavity more easily and uniformly.

Similarly, the base also comprises a peripheral annular channel surrounding the central annular channel and allowing outer ring gas to enter, the inner ring gas mixing chamber is provided with an annular cavity which is vertically communicated with the peripheral annular channel, and the peripheral annular channel and the annular cavity jointly form the outer ring gas channel.

In order to realize the communication between the outer ring gas channel and the outer ring gas mixing chamber, the outer peripheral wall of the annular cavity is provided with a gas inlet communicated with the transmission channel, and the inner annular wall of the outer ring gas mixing chamber is provided with a gas transmission port communicated with the transmission channel.

In order to adjust the air input of secondary air required by a main fire hole communicated with the outer ring air mixing chamber, the outer peripheral wall of the annular cavity is downwards protruded to form a circle of convex wall, and an adjusting piece capable of adjusting the relative distance between an air inlet of the secondary air supplement small chamber and the liquid containing disc is arranged on the convex wall. Of course, the air inlet may also have an adapted adjustment member for adjusting the air inlet when it is arranged on the outer side wall and/or the inner side wall.

From the simple angle of installation, preferably, the regulating part is including can be relative the regulating plate that the protruding wall reciprocated, the regulating plate is including the first ringlet and the second ringlet that the inside and outside interval set up and connect the radial splice bar that sets up of at least one of first ringlet and second ringlet.

In order to realize that the adjusting part can adjust the relative distance between the air inlet of the secondary air supply small chamber and the liquid containing disc, and simultaneously can prevent overflowing liquid from entering the air inlet of the secondary air supply small chamber and prevent the overflowing liquid from blocking the air inlet of the secondary air supply small chamber, a baffle plate partially extends upwards between the adjacent transmission channels at the inner side edge of the second annular ring, an air supply cavity is formed between the inner ring air mixing chamber and the outer ring air mixing chamber, the baffle plate extends into the air supply cavity and can at least partially cover the inner wall surface of the inner ring wall, and the outer side edge of the second annular ring extends to the horizontal direction to the lower part of the outer ring air mixing chamber and is opposite to the air inlet of the secondary air supply small chamber.

Since the baffle plate of the adjusting member is limited by the conveying channel, in order to better realize the change of the relative distance between the air inlet of the secondary air replenishing chamber and the liquid containing disc, the adjusting member also comprises an actuating member which can drive the adjusting plate to move up and down relative to the convex wall. The independent actuating component is used for realizing the matching of the adjusting plate and a convex wall formed by downward protrusion of the outer peripheral wall of the annular cavity, and the adjusting plate is driven to move relatively in a mode of up-and-down movement or rotary movement.

Preferably, the adjustment plate passes through the convex wall by a first annular ring and rests on the actuator.

Still further preferably, the actuating member is a convex ring screwed on the outer wall surface of the convex wall, and the adjusting plate can only move up and down relative to the liquid containing tray under the restriction of the conveying channel in a state that the convex ring rotates relative to the convex wall.

In order to realize the convenient installation of the ignition needle and/or the thermocouple, the outer wall of the first annular ring is provided with two semi-closed grooves which are distributed oppositely, and the ignition needle and/or the thermocouple which are installed on the base respectively upwards penetrate through the corresponding part of the base and extend into the corresponding semi-closed groove.

In order to realize stable combustion of the inner ring fire cover, the inner ring fire cover is arranged at the central part of the inner ring gas mixing chamber corresponding to the ring cavity, inner ring fire holes arranged at radial intervals are formed in the top surface of the inner ring fire cover, and flame stabilizing holes are circumferentially formed in the annular peripheral wall of the inner ring fire cover.

Compared with the prior art, the secondary air supplement chamber has the advantages that 1, the secondary air supplement chamber can directly pass through the inner part of the outer ring air mixing chamber of the outer ring fire cover of the combustor to better supplement secondary air to the main fire hole, the air outlet of the secondary air supplement chamber is radially arranged and distributed at intervals with the main fire hole, so that the secondary air can be directly supplemented to the root part of the main fire hole, the air supplement distance is approximate to a straight line, the supplement is smoother compared with the traditional method, and the complete combustion is ensured; 2. equal amount of secondary air can be uniformly supplemented to each position of the main fire hole, so that consistent combustion working conditions are ensured, incomplete combustion of local yellow fire is avoided, uniform complete combustion is realized, the heat efficiency is improved, and CO is reduced; 3. the secondary air supplements the heat that cell and outer loop air mixing chamber can transmit the outer loop air mixing chamber to, and the actual inner surface area of secondary air supplementation cell is big, and is internal: when secondary air enters the secondary air supplement chamber from the outside, the secondary air is fully preheated, and the secondary air supplement chamber is externally provided with: when entering the outer ring gas mixing chamber, the outer ring gas can be directly contacted with the outer wall surface of the secondary air supplement chamber, the contact area is greatly increased, the outer ring gas can also be effectively preheated, namely the inner preheated air and the outer preheated outer ring gas can both effectively improve the heat efficiency; 4. the secondary air supplement small chamber can play a role in guiding overflow liquid, is similar to a sewer, and the overflow liquid flows downwards through the secondary air supplement channel to be guided to the liquid containing disc so as to avoid the overflow liquid flowing into the combustor; 5. the wall part of the air outlet extends downwards to form a ring of annular wall which is attached to the inner peripheral wall of the secondary air supplement chamber, so that secondary air can only be discharged, and fuel gas cannot enter.

Drawings

FIG. 1 is a schematic view of a burner in accordance with embodiment 1 of the present invention;

FIG. 2 is a cross-sectional view at an angle of FIG. 1;

FIG. 3 is a cross-sectional view at another angle from FIG. 1;

FIG. 4 is an exploded view of FIG. 1;

FIG. 5 is a schematic structural diagram of an inner ring air mixing chamber and an outer ring air mixing chamber in embodiment 1 of the present invention;

FIG. 6 is an exploded view of FIG. 5;

FIG. 7 is a schematic view showing the structure of a secondary air supplement chamber in example 1 of the present invention;

FIG. 8 is a schematic structural view of an adjusting member in embodiment 1 of the present invention;

FIG. 9 is a schematic structural view of an adjusting member in embodiment 3 of the present invention;

fig. 10 is a schematic structural view of an adjusting member in embodiment 6 of the present invention.

Detailed Description

The invention is described in further detail below with reference to the accompanying examples.

Example 1

As shown in FIGS. 1 to 8, the preferred embodiment of the present invention is shown. The burner for the kitchen range comprises an outer ring air mixing chamber 1, wherein the outer ring air mixing chamber 1 comprises an inner ring wall 11 and an outer ring wall 12 which are annular and arranged at a concentric interval and a bottom wall 13 connecting the inner ring wall 11 and the outer ring wall 12, an outer ring fire cover 2 covers the upper part of the inner ring wall 11 and the outer ring wall 12, relatively isolated and vertical secondary air supplement chambers 3 are arranged in the outer ring air mixing chamber 1, the top wall of the outer ring fire cover 2 is provided with radial main fire holes 21 distributed at intervals along the circumferential direction, at least two air outlets 31 matched with the secondary air supplement chambers 3 are further arranged at intervals of every one or more main fire holes 21, the opening wall part of each air outlet 31 extends downwards to form a circle of annular wall 311, and the annular wall 311 is attached to the inner peripheral wall of the secondary air supplement chambers 3, so that secondary air can only go out, but gas cannot go. In order to make the positions of the main fire holes 21 uniformly supplement the same amount of secondary air and ensure the consistent combustion working condition, wherein if the fuel gas flowing out of the main fire holes 21 is uniform, the air outlets 31 of the outer ring fire cover 2 can be uniformly distributed along the circumferential direction; if the gas flowing out from each main fire hole 21 is not uniform, the gas outlets 31 of the outer fire cover 2 may also be arranged non-uniformly along the circumferential direction, for example, in the area of the main fire hole where the gas flow is large, the gas outlets may be arranged relatively densely. In addition, the opening aperture of the air outlet 31 of the secondary air supplement small chamber 3 is larger than the opening aperture of the main fire hole 21, and the bottom wall 13 is correspondingly provided with an air inlet 32 of the secondary air supplement small chamber 3 communicated with the outside air; the secondary air supply small chamber 3 comprises a pipeline structure with an upper opening and a lower opening, the secondary air supply small chamber 3 can adopt any pipeline structure in the prior art, such as a cylinder or a square frame, the embodiment is a square frame structure, in order to facilitate the installation of the secondary air supply small chamber 3 in the outer ring air mixing chamber, the secondary air supply small chamber 3 further comprises a connecting plate 30 connected to the lower part of the secondary air supply small chamber 3, and the connecting plate 30 is provided with an opening 301 communicated with the air inlet 32.

In order to better realize the effect of introducing the outside air into the secondary air supplement chamber 3, the embodiment preferably adopts a vertical arrangement mode, namely, the air inlet 32 is positioned on the bottom wall 13 of the outer ring air mixing chamber 1 and is simultaneously used as a channel for guiding the overflowing liquid; when the overflow guiding channel is used, the overflow guiding channel can also be directly guided to the liquid containing disc 4; the outer ring gas mixing chamber 1 is independently supported on the liquid containing disc 4 by the inner ring gas mixing chamber 5, in order to realize the transmission of an outer ring gas channel of the outer ring gas mixing chamber 1 independently supported on the liquid containing disc 4, a base 6 is further arranged below the liquid containing disc 4, the base 6 is provided with an inner ring gas channel and an outer ring gas channel arranged on the periphery of the inner ring gas channel at the position corresponding to the inner ring gas mixing chamber 5, at least one transmission channel 7 is arranged between the outer ring gas channel and the outer ring gas mixing chamber 1, and the transmission channel 7 is used for transmitting mixed primary air and outer ring gas to the outer ring gas mixing chamber 1 from the outer ring gas channel. The transmission channel 7 can adopt any outer ring gas channel and outer ring gas mixing chamber 1 pipeline in the prior art, and a gap formed by the bottom wall 13 of the outer ring gas mixing chamber 1 and the liquid containing disc 4 forms a secondary air inlet channel for directly supplementing air to the inside of the outer ring gas mixing chamber 1, compared with the prior art that the main fire hole 21 supplements air laterally through the lower part of the outer ring gas mixing chamber 1, the secondary air can be uniformly supplemented better aiming at the main fire hole 21 which is radially arranged and is in a strip seam type; meanwhile, the outer ring air mixing chamber 1 is independently supported by the inner ring air mixing chamber 5, a circle of the bottom of the outer ring air mixing chamber 1 is a secondary air inlet channel, the air quantity supplied to the inner ring by the secondary air inlet channel is increased, the full combustion of the inner ring is facilitated, the supply resistance of secondary air to the flame of the inner ring can be reduced, and the secondary air can be supplied more rapidly; in addition, the soup has the function of guiding the liquid to the liquid containing disc 4 in a directional manner, so that the soup is easy to clean, the phenomenon that the liquid containing disc 4 is blackened due to the fact that overflowing liquid is burnt to be dry can be effectively prevented, the traditional split structure formed by the outer ring gas mixing chamber 1, the inner ring gas mixing chamber 5 and the base 6 is adopted, only the base 6 and the liquid containing disc 4 which is basically in a plane are left after the inner ring gas mixing chamber 5 is taken during cleaning, and cleaning is convenient; and this secondary air supplements cell 3 to set up in the inside of outer loop air mixing chamber 1, can transmit the heat of outer loop air mixing chamber 1 fast, and the actual internal surface area of secondary air supplements cell 3 is big, and is internal: when the secondary air enters the secondary air supplement chamber 3 from the outside, the secondary air is fully preheated, and the secondary air supply chamber is externally connected with the air supply system: when the outer ring gas enters the outer ring gas mixing chamber 1, the outer ring gas can be in direct contact with the outer wall surface of the secondary air supplement chamber 3, the contact area is greatly increased, the outer ring gas can also be effectively preheated, namely, the outer ring gas is preheated internally and the outer ring gas is preheated externally, and both the outer ring gas and the outer ring gas can effectively improve the heat efficiency.

Specifically, the center of the base 6 is provided with a central annular channel 61 for the inner ring gas to enter, the center of the inner ring gas mixing chamber 5 is provided with an annular cavity 51 which is vertically communicated with the central annular channel 61, the central annular channel 61 and the annular cavity 51 together form an inner ring gas channel, more preferably, the inner ring gas channel is an annular channel, and the gas can be filled in the central annular channel 61 and the annular cavity 51 uniformly. Similarly, the base 6 further includes a peripheral annular channel 62 surrounding the central annular channel 61 and allowing the outer ring gas to enter, the inner ring gas mixing chamber 5 is provided with an annular cavity 52 vertically penetrating the peripheral annular channel 62, and the peripheral annular channel 62 and the annular cavity 52 together form the outer ring gas channel. In order to realize the communication between the outer ring gas channel and the outer ring gas mixing chamber 1, the outer circumferential wall of the annular cavity 52 is provided with an air inlet 71 communicated with the transmission channel 7, and the inner circumferential wall 11 of the outer ring gas mixing chamber 1 is provided with an air transmission port 72 communicated with the transmission channel 7. In order to better realize that the outer ring air mixing chamber 1 is independently supported by the inner ring air mixing chamber 5, the outer peripheral wall of the annular cavity 52 of the inner ring air mixing chamber 5 is protruded downwards to form a circle of convex wall 521, the convex wall 521 can be placed on the periphery of the pipe wall corresponding to the peripheral annular channel 62 of the base 6, in order to realize stable combustion of the inner ring fire cover 50, the inner ring fire cover 50 is arranged at the central part of the inner ring air mixing chamber 5 corresponding to the annular cavity 51, inner ring fire holes 501 arranged at radial intervals are formed in the top surface of the inner ring fire cover 50, and flame stabilizing holes 502 are formed in the circumferential wall of the inner ring fire cover 50 in the circumferential direction.

The invention can also adjust the air input of the secondary air needed by the main fire hole 21 communicated with the outer ring air mixing chamber 1, a circle of convex wall 521 is formed by downward projection of the outer peripheral wall of the ring cavity 52, and an adjusting piece capable of adjusting the relative distance between the air inlet 32 of the secondary air supplement small chamber 3 and the liquid containing disc 4 is arranged on the convex wall 521. From the viewpoint of simple installation, it is preferable that the adjusting member includes an adjusting plate 8 capable of moving up and down relative to the convex wall 521, and the adjusting plate 8 includes a first annular ring 81 and a second annular ring 82 arranged at an interval inside and outside and at least one radially arranged connecting rib 83 connecting the first annular ring 81 and the second annular ring 82. While the relative distance between the air inlet 32 of the secondary air supply chamber 3 and the liquid containing plate 4 can be adjusted by the adjusting member, and can also prevent the overflow from entering the air inlet 32 of the secondary air supplement chamber 3 and blocking the air inlet 32 of the secondary air supplement chamber 3, the baffle 821 is extended upwards partially between the inner side edge 822 of the second annular ring 82 and the adjacent transmission channel 7, the air supplement chamber 9 is formed between the inner ring air mixing chamber 5 and the outer ring air mixing chamber 1, the baffle 821 extends into the air replenishing cavity 9 and can at least partially cover the inner wall surface of the inner annular wall 11, through holes 84 for communicating the air replenishing cavity 9 and the air below the liquid containing disc 4 are enclosed by the outer side of the first annular ring 81, the inner side of the second annular ring 82 and the adjacent connecting ribs 83, and the outer side edge 823 of the second annular ring 82 extends horizontally to below the outer ring air mixing chamber 1 and is opposed to the air inlet 32 of the secondary air supplement chamber 3. Since the baffle 821 of the adjusting member is limited by the transmission channel 7, in order to better realize the change of the relative distance between the air inlet 32 of the secondary air supplement chamber 3 and the liquid containing disc 4, the adjusting member further comprises an actuating member which can drive the adjusting plate 8 to move up and down relative to the convex wall 521, and the adjusting member is matched with the convex wall 521 formed by the downward protrusion of the outer peripheral wall of the annular cavity 52 through a separate actuating member, for example, the adjusting plate 8 is driven to move up and down or rotate and move relatively. Preferably, the adjustment plate 8 passes through said convex wall 521 by means of a first annular ring 81 and rests on the actuator. Further preferably, the actuating member is a collar 10 screwed on the outer wall surface of the convex wall 521, and the adjusting plate 8 can only move up and down relative to the liquid containing tray 4 under the restriction of the transfer passage 7 in a state that the collar 10 is rotated relative to the convex wall 521. Finally, in order to facilitate the installation of the ignition needle and the thermocouple, the outer wall of the first annular ring 81 is provided with a first semi-closed groove 811 and a second semi-closed groove 812 which are distributed oppositely, and the ignition needle and the thermocouple which are installed on the base 6 respectively penetrate upwards through the corresponding part of the base 6 and extend into the corresponding first semi-closed groove 811 and the second semi-closed groove 812.

The embodiments of the present invention all use the secondary air supplement small chamber disposed in the outer ring air mixing chamber as an example, but the concept of the present invention can also be applied to the embodiments of the inner ring air mixing chamber (or the central air mixing chamber) and the inner ring fire cover (or the central fire cover), and will not be described again.

Example 2

The structure is basically the same as that of the embodiment 1, and the only difference is that: the secondary air supplement chamber 3 has a first side wall and a second side wall which are connected with the top wall of the outer ring fire cover 2 and the bottom wall 13 of the outer ring air mixing chamber 1, the inner ring wall 11 and the outer ring wall 12 directly serve as the inner side wall and the outer side wall of the secondary air supplement chamber 3, the bottom wall 13 is provided with an air inlet 32, the area of the air inlet arranged at the air inlet 32 is adjusted, and the adjustment mode of the adjusting piece in the embodiment 1 can be adopted for adjustment.

Example 3

The structure is basically the same as that of the embodiment 2, and the only difference is that: the secondary air supplement chamber 3 has a first side wall and a second side wall which are connected with the top wall of the outer ring fire cover 2 and the bottom wall 13 of the outer ring air mixing chamber 1, the inner ring wall 11 and the outer ring wall 12 directly serve as the inner side wall and the outer side wall of the secondary air supplement chamber 3, the inner ring wall 11 is provided with an air inlet 32, and the size of the area of the air inlet arranged at the air inlet 32 can be adjusted by adopting a mode of being adjacent to an adjusting ring arranged at the inner side of the inner ring wall 11 in the prior art, as shown in fig. 9.

Example 4

The structure is basically the same as that of the embodiment 3, and the only difference is that: in order to facilitate the installation of the secondary air supply chamber 3, the secondary air supply chamber 3 further comprises an inner plate connecting the first side wall and the second side wall, the air inlet 32 is formed in the inner circumferential wall 11, and the inner plate is formed with an opening 301 communicating with the air inlet 32.

Example 5

The structure is basically the same as that of the embodiment 3, and the only difference is that: the secondary air supply chamber 3 has a first side wall and a second side wall connecting the top wall of the outer fire lid 2 and the bottom wall 13 of the outer air mixing chamber 1, the inner ring wall 11 and the outer ring wall 12 directly serve as the inner side wall and the outer side wall of the secondary air supply chamber 3, the outer ring wall 12 is provided with an air inlet 32, and the size of the area of the air inlet provided at the air inlet 32 can be adjusted in a manner similar to that of the embodiment 3, such as being adjacent to an adjusting ring provided at the outer side of the outer ring wall 12.

Example 6

The structure is basically the same as that of the embodiment 5, and the only difference is that: in order to facilitate the installation of the secondary air supply cubicle 3, the secondary air supply cubicle 3 further comprises an outer panel connecting the first and second side walls, the air inlet 32 being provided in the outer annular wall 12, the outer panel being provided with an opening 301 communicating with the air inlet 32. Of course, the bottom plate, the top plate, the inner plate and the outer plate may be installed at the same time, and openings 301 are provided corresponding to the air inlets 32 of the inner annular wall 11 and/or the outer annular wall 12 and/or the bottom wall 13, as shown in fig. 10.

Claims

1. The utility model provides a combustor for cooking utensils, including outer ring gas mixing chamber (1), outer ring gas mixing chamber (1) is including being annular and concentric inner ring wall (11) and outer ring wall (12) that set up at interval and bottom wall (13) of connecting inner ring wall (11) and outer ring wall (12), inner ring wall (11) and outer ring wall (12) top cover have outer ring fire lid (2), its characterized in that: the outer ring air mixing chamber (1) is internally provided with at least two relatively isolated secondary air supplement small chambers (3), the top wall of the outer ring fire cover (2) is provided with radial main fire holes (21) which are distributed at intervals along the circumferential direction, and at least two air outlets (31) matched with the secondary air supplement small chambers (3) are arranged at intervals on every other one or more than one main fire holes (21), the mouth wall part of the air outlet (31) extends downwards to form a ring of annular wall (311), the annular wall (311) is attached to the inner peripheral wall of the secondary air supplement chamber (3), and an air inlet (32) communicated with the outside air and the air outlet (31) is formed in the position, corresponding to the secondary air supplement chamber (3), of the inner ring wall (11) and/or the outer ring wall (12) and/or the bottom wall (13) of the outer ring air mixing chamber (1).

2. Burner for cooktops according to claim 1, characterized in that: the secondary air supplement chamber (3) comprises a pipeline with openings at the upper part and the lower part, a top wall air outlet (31) of the outer ring fire cover (2) and a bottom wall (13) of the outer ring air mixing chamber (1) are connected, and the bottom wall (13) is provided with the air inlet (32).

3. Burner for cooktops according to claim 2, characterized in that: the secondary air supplement small chamber (3) also comprises a connecting plate (30) which connects the bottoms of the pipelines into a whole, and an opening (301) communicated with the air inlet (32) is formed in the connecting plate (30).

4. The burner for cookers of any one of claims 1 to 3, wherein: the liquid mixing device is characterized by further comprising a liquid containing disc (4) and an inner ring gas mixing chamber (5) arranged on the inner periphery of the outer ring gas mixing chamber (1), wherein the outer ring gas mixing chamber (1) is independently supported on the liquid containing disc (4) by the inner ring gas mixing chamber (5).

5. Burner for cookers according to claim 4, characterized in that: a base (6) is further arranged below the liquid containing disc (4), an inner ring gas channel and an outer ring gas channel arranged on the periphery of the inner ring gas channel are arranged at the position, corresponding to the inner ring gas mixing chamber (5), of the base (6), at least one transmission channel (7) is arranged between the outer ring gas channel and the outer ring gas mixing chamber (1), and the transmission channel (7) is used for transmitting mixed primary air and outer ring gas to the outer ring gas mixing chamber (1) from the outer ring gas channel.

6. Burner for cookers according to claim 5, characterized in that: the center of the base (6) is provided with a central annular channel (61) for inner ring gas to enter, the center of the inner ring gas mixing chamber (5) is provided with an annular cavity (51) which is vertically communicated with the central annular channel (61), and the central annular channel (61) and the annular cavity (51) jointly form the inner ring gas channel.

7. Burner for cooktops according to claim 6, characterized in that: the base (6) further comprises a peripheral annular channel (62) which surrounds the central annular channel (61) and is used for outer ring gas to enter, the inner ring gas mixing chamber (5) is provided with an annular cavity (52) which is vertically communicated with the peripheral annular channel (62), and the peripheral annular channel (62) and the annular cavity (52) jointly form the outer ring gas channel.

8. Burner for cooktops according to claim 7, characterized in that: an air inlet (71) communicated with the transmission channel (7) is formed in the outer peripheral wall of the annular cavity (52), and an air transmission port (72) communicated with the transmission channel (7) is formed in the inner annular wall (11) of the outer annular air mixing chamber (1).

9. Burner for cooktops according to claim 8, characterized in that: the outer peripheral wall of the annular cavity (52) protrudes downwards to form a circle of convex wall (521), and an adjusting piece capable of adjusting the relative distance between an air inlet (32) of the secondary air supplement small chamber (3) and the liquid containing disc (4) is arranged on the convex wall (521).

10. Burner for cooktops according to claim 9, characterized in that: the adjusting piece comprises an adjusting plate (8) which can move up and down relative to the convex wall (521), and the adjusting plate (8) comprises a first annular ring (81), a second annular ring (82) and at least one connecting rib (83) which is arranged in the radial direction and is used for connecting the first annular ring (81) and the second annular ring (82), wherein the first annular ring (81) and the second annular ring (82) are arranged at an inner interval and an outer interval.

11. Burner for cooktops according to claim 10, characterized in that: a baffle plate (821) is arranged between the adjacent transmission channels (7) and partially extends upwards along the inner side edge (822) of the second annular ring (82), an air supplementing cavity (9) is formed between the inner ring air mixing chamber (5) and the outer ring air mixing chamber (1), the baffle plate (821) extends into the air supplementing cavity (9) and can at least partially cover the inner wall surface of the inner ring wall (11), and the outer side edge (823) of the second annular ring (82) extends to the lower part of the outer ring air mixing chamber (1) in the horizontal direction and is opposite to the air inlet (32) of the secondary air supplementing small chamber (3).

12. Burner for cookers according to claim 10 or 11, characterized in that: the adjusting piece also comprises an actuating piece which can drive the adjusting plate (8) to move up and down relative to the convex wall (521).

13. Burner for cooktops according to claim 12, characterized in that: the adjusting plate (8) passes through the convex wall (521) by a first annular ring (81) and rests on the actuating element.

14. Burner for cooktops according to claim 13, characterized in that: the actuating piece is a convex ring (10) which is in threaded connection with the outer wall surface of the convex wall (521), and the adjusting plate (8) can only move up and down relative to the liquid containing disc (4) under the limitation of the transmission channel (7) when the convex ring (10) rotates relative to the convex wall (521).

15. Burner for cookers according to claim 10 or 11, characterized in that: the outer wall of the first annular ring (81) is provided with two semi-closed grooves which are distributed oppositely, and an ignition needle and/or a thermocouple which are arranged on the base (6) respectively penetrate through the corresponding part of the base (6) upwards and extend into the corresponding semi-closed grooves (811, 812).

16. Burner for cookers according to any of claims 6 to 11, characterized in that: an inner ring fire cover (50) is arranged at the central part of the inner ring gas mixing chamber (5) corresponding to the annular cavity (51), inner ring fire holes (501) arranged at radial intervals are formed in the top surface of the inner ring fire cover (50), and flame stabilizing holes (502) are formed in the circumferential wall of the inner ring fire cover (50) in the circumferential direction.