CN216131925U - Outer fire cover of combustor, fire cover assembly and gas stove - Google Patents

Abstract

The application relates to the technical field of gas cookers and discloses an outer fire cover of a combustor, a fire cover assembly and a gas stove. The outer fire cover of the burner includes: a top wall in the shape of a ring; the inner side wall is arranged at the inner edge of the top wall and is positioned below the top wall; the outer side wall is arranged at the outer edge of the top wall and is positioned below the top wall; the top wall, the inner side wall and the outer side wall together define an outer plenum; the outer fire cover is provided with a fire transmission groove which penetrates through the top wall, the inner side wall and the outer side wall and penetrates through the outer gas mixing chamber to be directly communicated with the outer gas mixing chamber; the two opposite side walls of the fire transfer groove are inclined in the same direction and have non-zero included angles with the vertical direction. The problem that fire transfer fails due to the fact that the fire transfer grooves are easily burnt is solved.

Description

Outer fire cover of combustor, fire cover assembly and gas stove

Technical Field

The application relates to the technical field of gas cookers, for example to an outer fire cover, a fire cover assembly and a gas stove of a combustor.

Background

At present, when a pot overflows, soup easily enters the fire transfer groove of the existing gas stove, and the fire transfer groove is difficult to clean after being blocked, so that after ignition is successful, flame cannot transfer fire through the fire transfer groove, and fire transfer failure is caused.

SUMMERY OF THE UTILITY MODEL

The following presents a simplified summary in order to provide a basic understanding of some aspects of the disclosed embodiments. This summary is not an extensive overview nor is intended to identify key/critical elements or to delineate the scope of such embodiments but rather as a prelude to the more detailed description that is presented later.

The embodiment of the disclosure provides an outer fire cover of a combustor, a fire cover assembly and a gas stove, and aims to solve the problem that fire transfer failure is caused due to the fact that a fire transfer groove is easily burnt.

An outer fire cover of a burner comprising: a top wall in the shape of a ring; the inner side wall is arranged at the inner edge of the top wall and is positioned below the top wall; the outer side wall is arranged at the outer edge of the top wall and is positioned below the top wall; the top wall, the inner side wall and the outer side wall together define an outer plenum; the outer fire cover is provided with a fire transmission groove which penetrates through the top wall, the inner side wall and the outer side wall and penetrates through the outer gas mixing chamber to be directly communicated with the outer gas mixing chamber; the two opposite side walls of the fire transfer groove are inclined in the same direction and have non-zero included angles with the vertical direction.

Optionally, the outer fire cover is further provided with an ignition hole communicated with the outer gas mixing chamber, and the ignition hole is suitable for being matched with an ignition needle of the burner to ignite.

Optionally, the outer fire cover further comprises: and the ignition cap is arranged on the inner side wall and corresponds to the ignition hole.

Optionally, the fire transfer groove upper end opening, outer fire lid still includes: the cap peak is connected with the ignition cap and comprises a connecting part and a shielding part which are connected, the connecting part is arranged on one side of the opening end of the fire transfer groove, and the shielding part is arranged above the connecting part and covers at least part of the opening end of the fire transfer groove; and the bulge is arranged on the other side of the opening end of the fire transfer groove.

Optionally, an inner wall surface of the outer air mixing chamber is at least partially recessed to form a groove, and the fire transfer groove is communicated with the outer air mixing chamber through the groove.

The disclosed embodiment also provides a fire lid assembly, including: an inner fire cover; the outer fire cover of the burner in any one of the above embodiments is sleeved outside the inner fire cover.

Optionally, the inner fire cover defines an inner mixing chamber, the inner fire cover is provided with a fire transfer hole, the fire transfer hole is communicated with the inner mixing chamber, and the fire transfer hole corresponds to the ignition hole.

Optionally, the fire transfer holes extend in a horizontal direction or along a flow direction of gas in the fire transfer holes, and the fire transfer holes are inclined upwards.

The embodiment of the present disclosure further provides a gas stove, which includes a burner, wherein the burner includes the fire cover assembly as described in any one of the above embodiments; the gas distribution plate is arranged below the fire cover assembly.

Optionally, the fire cover assembly is provided with a limiting part; the gas distribution disc is provided with a limit matching part; the limiting part is matched with the limiting matching part to limit the fire cover assembly to rotate relative to the gas distribution plate.

The outer fire cover, the fire cover assembly and the gas stove of the combustor provided by the embodiment of the disclosure can realize the following technical effects:

the chute slope sets up, make hot water juice, impurity etc. are difficult to get into the inside fire passing groove that causes and pass the fire blocking of groove, pass the fire groove and run through the roof that outer fire covered, inside wall and lateral wall, make pass the fire groove and can transmit flame to the outer fire hole department that outer fire covered, make outer fire cover the ignition success, pass the fire groove and directly communicate with outer gas mixing chamber, make the intercommunication area of passing fire groove and outer gas mixing chamber big, be difficult to blockked up by hot water juice, hot water juice gets into behind the fire passing groove, can directly get into outer gas mixing chamber, can not make the fire passing groove stick with paste, and easily clean.

The foregoing general description and the following description are exemplary and explanatory only and are not restrictive of the application.

Drawings

One or more embodiments are illustrated by way of example in the accompanying drawings, which correspond to the accompanying drawings and not in limitation thereof, in which elements having the same reference numeral designations are shown as like elements and not in limitation thereof, and wherein:

fig. 1 is a schematic structural view of a gas range provided in an embodiment of the present disclosure;

fig. 2 is a schematic view of a structure of an outer fire cover and an ignition needle provided by the embodiment of the disclosure;

FIG. 3 is a schematic view of a fire cover according to an embodiment of the present disclosure;

FIG. 4 is a schematic structural view of another perspective of an outer fire cover provided by embodiments of the present disclosure;

FIG. 5 is an enlarged schematic view of portion A of FIG. 4;

FIG. 6 is a schematic structural view of a fire lid assembly according to an embodiment of the present disclosure;

FIG. 7 is a schematic view of a perspective structure of an inner fire cover provided by embodiments of the present disclosure;

FIG. 8 is a schematic cross-sectional view taken along line E-E of FIG. 7;

FIG. 9 is a schematic structural view of another outer fire cover provided by the disclosed embodiment;

FIG. 10 is a schematic cross-sectional view taken along line B-B of FIG. 9;

FIG. 11 is a schematic structural view of a gas distribution plate provided in the embodiments of the present disclosure;

fig. 12 is a schematic structural view of an alternative view of an inner fire cover according to an embodiment of the disclosure.

Reference numerals:

1. a burner; 11. an inner fire cover; 111. an inner fire hole; 112. an inner air mixing chamber; 113. a fire transfer hole; 12. an outer fire cover; 121. an outer fire hole; 1211. fire-proof position; 1212. a flame stabilizing groove; 1213. a flame stabilizing hole; 122. an outer fire cover body; 1221. a top wall; 1222; an inner sidewall; 1223. an outer sidewall; 1224. a second outer sidewall section; 123. an ignition hole; 124. an ignition cap; 125. a fire transfer groove; 126. a brim; 1261. a connecting portion; 1262. a shielding portion; 127. a protrusion; 128. an outer gas mixing chamber; 129. a groove; 13. an ignition needle; 107. a first sub-limiting part; 108. a second sub-limiting part; 30. a gas distribution plate; 301. an upper gas distribution plate; 302. a lower gas distribution plate; 305. a first sub-limit fitting part; 306. and a second sub-limit matching part.

Detailed Description

So that the manner in which the features and elements of the disclosed embodiments can be understood in detail, a more particular description of the disclosed embodiments, briefly summarized above, may be had by reference to the embodiments, some of which are illustrated in the appended drawings. In the following description of the technology, for purposes of explanation, numerous details are set forth in order to provide a thorough understanding of the disclosed embodiments. However, one or more embodiments may be practiced without these details. In other instances, well-known structures and devices may be shown in simplified form in order to simplify the drawing.

The terms "first," "second," and the like in the description and in the claims, and the above-described drawings of embodiments of the present disclosure, are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It should be understood that the data so used may be interchanged under appropriate circumstances such that embodiments of the present disclosure described herein may be made. Furthermore, the terms "comprising" and "having," as well as any variations thereof, are intended to cover non-exclusive inclusions.

In the embodiments of the present disclosure, the terms "upper", "lower", "inner", "middle", "outer", "front", "rear", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings. These terms are used primarily to better describe the disclosed embodiments and their examples and are not intended to limit the indicated devices, elements or components to a particular orientation or to be constructed and operated in a particular orientation. Moreover, some of the above terms may be used to indicate other meanings besides the orientation or positional relationship, for example, the term "on" may also be used to indicate some kind of attachment or connection relationship in some cases. The specific meanings of these terms in the embodiments of the present disclosure can be understood by those of ordinary skill in the art as appropriate.

In addition, the terms "disposed," "connected," and "secured" are to be construed broadly. For example, "connected" may be a fixed connection, a detachable connection, or a unitary construction; can be a mechanical connection, or an electrical connection; may be directly connected, or indirectly connected through intervening media, or may be in internal communication between two devices, elements or components. Specific meanings of the above terms in the embodiments of the present disclosure can be understood by those of ordinary skill in the art according to specific situations.

The term "plurality" means two or more unless otherwise specified.

In the embodiment of the present disclosure, the character "/" indicates that the preceding and following objects are in an or relationship. For example, A/B represents: a or B.

It should be noted that, in the case of no conflict, the embodiments and features in the embodiments of the present disclosure may be combined with each other.

As shown in fig. 1 to 10, the present disclosure provides an outer fire cover 12 of a burner 1, the outer fire cover 12 of the burner 1 includes an outer fire cover body 122 and an ignition cap 124, the outer fire cover body 122 defines an outer air mixing chamber 128 and is provided with an ignition hole 123 communicated with the outer air mixing chamber 128; the ignition cap 124 is disposed inside the outer fire cover body 122, corresponds to the ignition hole 123, and is adapted to cooperate with the ignition needle 13 of the burner 1 for ignition, wherein the outer fire cover 12 is provided with an outer fire hole 121, and the inner fire cover 11 is provided with an inner fire hole 111.

The ignition can be realized only when the ignition needle 13 of the existing combustor 1 is close to the inner fire cover 11, but the distance between the ignition needle 13 and the inner fire cover 11 is influenced by other parts of the combustor, so that various factors are considered for the arrangement of the ignition needle 13, particularly, the diameter of the inner fire cover 11 needs to be reduced, when the minimum load of the inner ring fire is reduced, the ignition needle 13 is blocked by other parts of the combustor 1, the ignition needle 13 cannot be arranged inwards, and the combustor cannot be ignited smoothly after the diameter of the inner fire cover 11 is reduced.

The ignition hole 123 is arranged on the outer ignition cover 12 of the burner 1, the ignition hole 123 is communicated with the outer air mixing chamber 128, the mixed gas in the outer air mixing chamber 128 flows out through the ignition hole 123, the ignition cap 124 is correspondingly arranged at the ignition hole 123, the ignition cap 124 is suitable for being matched with the ignition needle 13 of the burner 1 for ignition, the ignition needle 13 can only discharge to the ignition cap 124, the mixed gas flowing out through the ignition hole 123 is instantly ignited when meeting high voltage formed between the ignition cap 124 and the ignition needle 13, so that ignition of the ignition hole 123 is realized, after the ignition needle 13 is ignited, flame is transmitted to the outer ignition hole 121 of the outer ignition cover 12, so that the outer ignition cover 12 is successfully ignited, after the ignition hole 123 is successfully ignited, the flame can be transmitted to the inner ignition hole 111 of the inner ignition cover 11 of the burner 1, so that the inner ignition cover 11 is ignited, and finally the flame is transmitted to the inner ignition cover 11 through the outer ignition cover 12 so that ignition of the burner 1 is realized, and the ignition hole 123 and the ignition cap 124 are both arranged on the outer ignition cover 12, outer fire lid 12 department is also located to ignition needle 13 for ignition needle 13 need not mutually support with interior fire lid 11, like this, even the diameter of interior fire lid 11 reduces, does not influence the ignition of combustor 1 yet, can understand, has reduced the cooperation demand between ignition needle 13 and interior fire lid 11, gas distribution dish or the furnace chamber, makes interior fire lid 11, gas distribution dish or the furnace chamber can have more transformations.

Optionally, outer fire cover body 122 includes top wall 1221, inside wall 1223 and outside wall 1223, and inside wall 1223 is established at the inside edge of top wall 1221 and is located below top wall 1221, and outside wall 1223 is established at the outside edge of top wall 1221 and is located below top wall 1221, and top wall 1221, inside wall 1223 and outside wall 1223 together define outer mixing chamber 128.

Wherein, ignition hole 123 sets up the inside wall 1223 at outer fire lid body 122 for ignition hole 123 catches fire the back, and is close with the distance between the interior fire lid 11, thereby can be smooth transmit outer fire lid 12's flame to interior fire lid 11 department.

Optionally, the number of the ignition holes 123 is one or more, and when the number of the ignition holes 123 is multiple, the multiple ignition holes 123 are sequentially arranged at intervals along the circumferential direction of the outer fire cover body 122.

Optionally, the ignition needle 13 is located directly below the ignition cap 124.

Alternatively, the distance between the ignition cap 124 and the ignition needle 13 ranges from 2mm to 5 mm.

For example, the distance between the ignition cap 124 and the ignition needle 13 may be 2mm, 4mm, 5mm, etc.

Optionally, the ignition pin 13 also corresponds to the ignition hole 123.

Alternatively, the ignition cap 124 may be formed by milling with a circular motion of the outer fire cap body 122, forming the convex structure of the ignition cap 124.

As shown in fig. 3, the outer fire lid body 122 is provided with a fire transfer groove 125 penetrating the outer fire lid body 122 in the inner and outer directions, and the fire transfer groove 125 is communicated with the outer air mixing chamber 128 and with the ignition hole 123.

Wherein, the side that is closer to the axial of outer fire lid body 122 is the inside, and the side that is farther from the axial of outer fire lid body 122 is the outside. In fig. 10, the inside and outside show the outside and inside of the outer fire cover.

After the ignition hole 123 is ignited, flame ignites the outer fire hole 121 through the fire transfer groove 125, so that ignition of the outer fire cover 12 is realized, and the fire transfer groove 125 plays a role in transferring and guiding, so that smooth ignition of the outer fire cover 12 is ensured.

Optionally, the fire transfer groove 125 penetrates the inner side wall 1223, the top wall 1221 and the outer side wall 1223 such that the fire transfer groove 125 communicates the inside and the outside of the outer fire cover body 122, and the bottom of the fire transfer groove 125 communicates with the outer air mixing chamber 128.

Optionally, fire transfer slot 125 extends through outer mixing chamber 128 and is in direct communication with outer mixing chamber 128.

Pass fire groove 128 and outer air chamber 128 direct intercommunication that mixes for pass fire groove 125 and outer air chamber 128's intercommunication area big, be difficult to blockked up by hot water juice, hot water juice gets into and passes after fire groove 128, can directly get into outer air chamber 128 that mixes, can not make and pass fire groove 125 and stick with paste, compare in prior art moreover, adopt outer air chamber 128 that mixes and pass fire groove 125 adoption round hole intercommunication, it is cleaner more easily.

Optionally, the outer fire cover body 122 is provided with a plurality of outer fire holes 121, the plurality of outer fire holes 121 are sequentially arranged at intervals along the circumferential direction of the outer fire cover body 122, and the outer fire holes 121 are also communicated with the outer air mixing chamber 128.

Optionally, the outer fire holes 121 are provided in the outer sidewall 1223 of the outer fire cover body 122.

Alternatively, the outer fire holes 121 may communicate with the fire transfer grooves 125 at the outlet end of the outer side wall 1223 or the fire transfer grooves 125 at the outlet end of the outer side wall 1223 may be closer to the outer fire holes 121 so that the fire transfer grooves 125 transfer fire to the outer fire holes 121.

Optionally, a plurality of outer fire holes 121 evenly set up along the circumference of outer fire lid body 122 in proper order, and the flame that is favorable to outer fire lid body 122 is even along circumference burning to the pan even heating, a plurality of outer fire holes 121 highly the same basically, so that the flame height of outer fire lid 12 is basically the same, make the flame of outer fire lid 12 burn evenly along the direction of height.

Optionally, the plurality of outer fire holes 121 are substantially circular in cross-section and substantially the same size.

The circular outer fire holes 121 are easy to form and beneficial to transmitting mixed gas, the mixed gas output quantity of each outer fire hole 121 is basically the same due to the basically same size, and flames formed after the mixed gas output by each outer fire hole 121 is ignited are basically the same in size, so that the flames of the outer fire holes 121 are more uniform, and uniform heating of objects is facilitated.

Optionally, the outer cap body 122 is further provided with a flame stabilizing groove 1212 and a plurality of flame stabilizing holes 1213, the flame stabilizing groove 1212 is formed by circumferentially recessing the outer surface of the outer side wall 1223, the outer side wall 1223 is further provided with flame stabilizing holes 1213, and the flame stabilizing groove 1212 is communicated with the outer mixing chamber 128 through the flame stabilizing holes 1213.

It can be understood that, a plurality of outer fire holes 121 distribute in the circumference of outer fire cover body 122, flame stabilizing groove 1212 is along the circumferential continuous distribution of outer fire cover body 122, when making the gas mixture transmit to outer fire holes 121, flame stabilizing groove 1212 can transmit flame to outer fire holes 121 in order to ignite outer fire holes 121, play the flame stabilizing effect to outer fire holes 121, make flame not fly away from outer fire holes 121 root simultaneously, flame stabilizing groove 1212 is linked together through flame stabilizing hole 1213 and outer gas mixture chamber 128, can introduce the gas mixture to flame stabilizing groove 1212, provide the gas mixture for the burning of flame stabilizing groove 1212, be favorable to flame stabilizing groove 1212 to transmit flame fast, play the effect of lighting and flame stabilizing to the flame of outer fire holes 121.

The flame stabilizing slots 1212 and the flame stabilizing holes 1213 are communicated, the flame stabilizing holes 1213 and the flame stabilizing slots 1212 are located below the outer flame holes 121, and the plurality of flame stabilizing holes 1213 are sequentially arranged at intervals along the circumferential direction of the outer flame cover 12.

Optionally, the flame stabilizing holes 1213 are staggered with the outer fire holes 121.

Optionally, the outer fire apertures 121 are angled upwardly in an inward to outward direction.

Optionally, the outer fire apertures 121 are angled from horizontal in the range of 40 ° to 50 °.

When the included angle between the outer fire hole 121 and the horizontal direction is 40-50 degrees, the heat exchange effect between the flame and the bottom of the pot is good, the natural injection effect of the airflow at the outer fire hole 121 on the secondary air can be improved, when the included angle is smaller than 40 degrees, the heat exchange between the flame of the outer fire cover 12 and the bottom of the pot is poor, the natural injection effect of the outer fire hole 121 on the secondary air is poor, when the included angle is larger than 50 degrees, on one hand, the processing difficulty is increased, on the other hand, the injection effect of the airflow at the outer fire hole 121 on the secondary air is too large, so that the secondary air flow velocity is too fast, the secondary air is not supplied enough, and the flame at the outer fire hole 121 cannot be sufficiently combusted.

For example, the angle between the outer fire holes 121 and the horizontal direction is 40 °, 45 °, 50 °, or the like.

Alternatively, the flame stabilizing holes 1213 are inclined upward in the inside-out direction.

Optionally, the flame stabilizing holes 1213 are angled from horizontal in the range of 60 ° to 90 °.

When the included angle between the flame stabilizing holes 1213 and the horizontal direction is 60-90 degrees, the mixed gas can smoothly reach the flame stabilizing grooves 1212, the included angle between the flame stabilizing holes 1213 and the horizontal direction is less than 60 degrees, and the flame stabilizing holes 1213 are easily interfered with the outer flame holes 121.

For example, the flame stabilizing holes 1213 may be included at angles of 60 °, 70 °, 80 °, 90 °, etc. to the horizontal.

Optionally, as shown in fig. 2, the outer fire cover body 122 is provided with a plurality of fire outlet areas, the plurality of fire outlet areas are sequentially arranged at intervals along the circumferential direction of the outer fire cover body 122, each fire outlet area is provided with at least one outer fire hole 121, the distance between two adjacent fire outlet areas is greater than the distance between two adjacent outer fire holes 121, a fire-avoiding position 1211 is arranged between two adjacent fire outlet areas, and the fire-avoiding position 1211 corresponds to the support claw of the burner 1, and is used for preventing the support claw of the flame burner 1 of the outer fire cover 12 from causing the burning of smoke.

Optionally, a plurality of fire-emitting areas are sequentially and uniformly spaced along the circumferential direction of the outer fire cover body 122.

Alternatively, the number of the fire avoidance positions 1211 is one or more, and the number of the fire avoidance positions 1211 is equal to and corresponds to the number of the support claws of the burner 1.

Optionally, the fire-avoiding positions 1211 are sequentially arranged at intervals along the circumferential direction of the outer fire cover body 122.

For example, the number of fire avoidance bits 1211 can be 1, 2, 3, 4, etc.

As shown in fig. 2, a flame stabilizing groove 1212 is provided below the fire-avoiding position 1211, so that a fire is present in the flame stabilizing groove 1212 corresponding to the fire-avoiding position 1211, thereby ensuring that the outer fire cap body 122 can transmit the fire in the circumferential direction.

Optionally, the fire avoidance positions 1211 correspond to the number of the flame stabilizing holes 1213 being 2-5, such as 2, 3, 4, 5. When the number of the flame stabilizing holes 1213 corresponding to the fire-avoiding position 1211 is more than 5, the airflow at the flame stabilizing slot 1212 corresponding to the fire-avoiding position 1211 is too much, and the smoke is increased. When the number of the flame stabilizing holes 1213 corresponding to the flame avoidance 1211 is less than 2, the flame avoidance 1211 cannot be enlarged and the support of the burner 1 cannot be burned by the flame.

Optionally, the energy-gathering cover of the gas stove is sleeved outside the outer fire cover body 122, and defines a secondary air channel; a guide flow channel is enclosed between the inner wall of the energy gathering cover and the outer side wall 1223 of the outer fire cover body 122, the outlet of the outer fire hole 121 and/or the outlet of the flame stabilizing hole 1213 are communicated with a secondary air channel through the guide flow channel, and the guide flow channel is inclined towards the outlet of the outer fire hole 121 and/or the outlet of the flame stabilizing hole 1213 along the flowing direction of the secondary air in the guide flow channel.

Optionally, the outer sidewall 1223 of the outer burner cap body 122 comprises a first outer sidewall section and a second outer sidewall section 1224 located above the first outer sidewall section, the first outer sidewall section and the second outer sidewall section 1224 are both located below the outlet of the outer burner 121 and/or the outlet 2121 of the flame stabilizing hole 1213, the inner wall of the energy concentrating cover of the gas cooker is arranged opposite to the first outer sidewall section, and the second outer sidewall section 1224 is inclined towards the outlet of the outer burner 121 and/or the outlet direction of the flame stabilizing hole 1213 in the flow direction of the secondary air in the guiding flow channel.

After passing through the inner wall of the energy concentrating cover and the first outer side wall section, the secondary air in the guide flow channel flows to the second outer side wall section 1224, is guided by the second outer side wall section 1224, and flows to the outlet of the outer flame hole 121 and/or the outlet of the flame stabilizing hole 1213, so that the secondary air reaches the root of the outer flame hole 121 and/or the flame stabilizing hole 1213.

Optionally, as shown in fig. 10, the outer fire cover body 122 and the energy collecting cover of the gas stove further enclose a secondary air flow channel, and the secondary air flow channel is used for supplementing secondary air to the flame of the outer fire cover 12, wherein the outer wall surface of the outer side wall 1223 of the outer fire cover body 122 is further provided with an outer inclined surface 1224, the outer inclined surface 1224 inclines upwards along the direction from inside to outside, and the outer inclined surface 1224 guides the flow of the secondary air in the secondary air flow channel, so that the secondary air can smoothly reach the root of the outer fire hole 1211 or the flame stabilizing hole 1213.

Alternatively, as shown in fig. 10, the upper surface of the outer fire lid body 122 is at least partially inclined upward in the inside-out direction.

The secondary air flow in the secondary air flow channel is guided, so that the secondary air flowing in the secondary air flow channel between the outer fire cover 12 and the inner fire cover 11 can smoothly reach the upper root of the flame of the outer fire cover 12.

Optionally, the upper surface of the top wall 1221 is inclined upwards, and the angle between the upper surface of the top wall 1221 and the horizontal direction is in the range of 20 ° to 50 °, such as 20 °, 30 °, 40 °, 45 °, 50 °, and the like.

In fig. 10, the inside and outside of the outer fire cover are shown, and the arrows indicate the flow direction of the secondary air in the secondary air flow passage.

As shown in fig. 6, two opposite sidewalls of the fire transfer groove 125 are inclined in the same direction and have non-zero included angles with the vertical direction.

Pass the slope of fire groove 125 and set up, on the one hand, make the space grow of passing fire groove 125, improve the efficiency of passing fire, make flame can transmit the outside of outer fire lid 12 from ignition hole 123 smoothly, on the other hand, pass the slope of fire groove 125 and set up, make hot water juice, impurity etc. be difficult to get into and pass inside fire groove 125, block up and pass fire groove 125, compare in prior art vertical setting pass fire groove 125, the effect of preventing blockking up of the fire groove 125 that passes that the slope set up is better a bit.

Optionally, the fire trough 125 is adjustable in trough width.

Optionally, the fire trough 125 has a trough width in the range of 0.5mm to 0.9 mm.

For example, the fire transfer slots 125 may have slot widths of 0.5mm, 0.6mm, 0.7mm, 0.8mm, 0.9mm, and the like.

Alternatively, the fire chute 125 may or may not extend horizontally in the inside-to-outside direction.

Alternatively, the fire chute 125 may also be arcuate, dog-leg, or otherwise shaped.

As shown in fig. 3, the upper end of the fire transfer groove 125 is open, the outer fire cover 12 further includes a visor 126 and a protrusion 127, the visor 126 is connected to the ignition cap 124, the visor 126 includes a connecting portion 1261 and a shielding portion 1262, the connecting portion 1261 is disposed at one side of the open end of the fire transfer groove 125, and the shielding portion 1262 is disposed above the connecting portion 1261 and covers at least a part of the open end of the fire transfer groove 125; the protrusion 127 is provided at the other side of the open end of the fire transfer slot 125.

Pass fire groove 125 upper end opening, the air in passing fire groove 125 is improved to flow, make the air in passing fire groove 125 sufficient, thereby can guarantee that pass fire groove 125 department can stable combustion and pass flame to outer fire lid 12, connecting portion 1261 of brim of a hat 126 is used for blockking the soup that the pan spills, impurity etc. flows into passing fire inside groove 125 through one side of the open end of passing fire groove 125, avoid passing fire groove 125 to block up, cause and pass fire failure, protruding 127 is used for blockking the soup that the pan spills, impurity etc. flows into passing fire inside groove 125 through the other side of the open end of passing fire groove 125, shielding portion 1262 connected with connecting portion 1261, shielding portion 1262 covers at least part of pass fire groove 125's open end, make the soup that the pan spills, impurity falls to outer fire lid 12, be sheltered by shielding portion 1262, can not fall into directly passing fire groove 125, in a word, because brim of a hat 126 and protruding 127, make the soup that the pan spills that spills, fall, When impurities and the like fall on the outer fire cover 12, the impurities are blocked by the blocking part 1262 or fall on the upper surface of the outer fire cover 12, and cannot directly flow into the fire transfer groove 125, and when a user wipes the outer fire cover 12, the soup or the impurities cannot be wiped into the fire transfer groove 125 due to the blocking of the protrusion 127 and the connecting part 1261.

Alternatively, the shielding portion 1262 may be a horizontal surface or may be inclined downward in a direction away from the opening end of the fire chute 125 so that soup, impurities, etc. do not flow from the shielding portion 1262 into the fire chute 125.

As shown in fig. 4 and 5, the inner wall surface of the outer air mixing chamber 128 is at least partially recessed to form a groove 129, and the fire transfer groove 125 communicates with the outer air mixing chamber 128 via the groove 129.

The internal wall face of outer gas mixing chamber 128 is at least partially sunken for the thickness attenuate of outer fire lid 12, because pass fire groove 125 need with outer gas mixing chamber 128 intercommunication, the thickness attenuate of outer fire lid 12 makes the processing of passing fire groove 125 easy, pass the fire groove 125 moreover and need not cut too deeply, also can not interfere with outer fire hole 121, flame stabilizing groove 1212 or flame stabilizing hole 1213 of outer fire lid 12 mutually, both saved the cost, still improved the stability of outer fire lid 12.

Alternatively, the groove 129 may be formed by partially recessing the lower surface of the top wall 1221 such that the fire transfer groove 125 becomes thinner throughout the thickness of the top wall 1221, and the fire transfer groove 125 is not too close to the flame holding groove 1212 and does not interfere with the flame holding groove 1212.

Alternatively, the groove 129 may be formed by an inner surface depression of the outer sidewall 1223 or by an outer surface depression of the inner sidewall 1223.

Alternatively, as shown in fig. 5, the groove 129 may be formed by the lower surface of the top wall 1221 and the inner surface of the outer sidewall 1223 being recessed together.

Alternatively, as shown in fig. 5, the ignition hole 123 is formed in the inner sidewall 1223, the lower surface of the top wall 1221 is recessed to form a groove 129, and the ignition hole 123 is communicated with the outer air mixing chamber 128 through the groove 129.

Ignition hole 123 locates inside wall 1223, the sunken recess 129 that forms of upper surface of roof 1221, the ignition hole 123 of being convenient for is linked together through recess 129 and outer air mixing chamber 128 on the one hand, on the other hand, make the accommodation of the size of ignition hole 123 bigger, because the lower surface of roof 1221 is sunken, make inside wall 1223 can set up the position of ignition hole 123 and upwards shift up, ignition hole 123 is close to roof 1221 setting like this, when guaranteeing ignition hole 123's ignition performance, can not reduce inside wall 1223's intensity, guarantee the life of outer fire lid 12.

With reference to fig. 1 to 10, the ignition process of the outer fire cover 12 will be described:

the ignition needle 13 discharges to the ignition cap 124, and simultaneously, mixed gas flows out from the ignition hole 123, high voltage electricity is formed between the ignition cap 124 and the ignition needle 13, and the mixed gas flowing out from the ignition hole 123 meets the high voltage electricity and is instantly ignited, wherein flame at the position of the flame transfer hole 113 transfers flame to the flame transfer groove 125, and the flame transfer groove 125 transfers flame to the position of the outer flame hole 121, so that the outer flame cover 12 is successfully ignited.

The embodiment of the present disclosure further provides a fire cover assembly, which includes an inner fire cover 11 and an outer fire cover 12 of the burner 1 as in any one of the above embodiments, wherein the outer fire cover 12 of the burner 1 is sleeved on the outer side of the inner fire cover 11.

The fire cover assembly provided by the embodiment of the present disclosure includes the outer fire cover 12 of the burner 1 in any one of the above embodiments, so that all the beneficial effects of the outer fire cover 12 of the burner 1 in any one of the above embodiments are achieved, and no further description is provided herein.

After the outer fire cover 12 of the burner 1 is successfully ignited, the flame of the outer fire cover 12 of the burner 1 can be transmitted to the inner fire hole 111 of the inner fire cover 11, so that the inner fire hole 111 of the inner fire cover 11 is successfully ignited.

Alternatively, as shown in fig. 6 to 8, the inner fire cover 11 defines an inner air mixing chamber 112, the inner fire cover 11 is provided with a fire transfer hole 113, the fire transfer hole 113 is communicated with the inner air mixing chamber 112, and the fire transfer hole 113 corresponds to the ignition hole 123.

After the outer fire cover 12 successfully ignites, because the fire transfer hole 113 corresponds to the ignition hole 123, the flame of the combustion of the ignition hole 123 can be transferred to the fire transfer hole 113, and then the flame is transferred to the whole inner fire hole 111 through the fire transfer hole 113, so that the whole inner fire cover 11 burns.

It can be understood that: the fire transfer hole 113 may correspond to the ignition hole 123 and may also correspond to the ignition pin 13.

Alternatively, when the number of the fire transfer holes 113 is one or more, and the number of the fire transfer holes 113 is more, the plurality of fire transfer holes 113 each correspond to the ignition cap 124.

In one embodiment, the fire transfer holes 113 extend in a horizontal direction

The fire transfer holes 113 extend in the horizontal direction, and the moving path of the mixed gas in the inner gas mixing chamber 112 to the fire transfer holes 113 is reduced, so that the gas at the fire transfer holes 113 can be ignited quickly.

In another embodiment, the fire transfer holes 113 are inclined upwards along the flowing direction of the gas in the fire transfer holes 113, so that the natural injection effect of the fire transfer holes 113 on the mixed gas is improved, and the mixed gas reaching the fire transfer holes 113 can meet the combustion requirement of the fire transfer holes 113.

Optionally, the inner fire cover 11 is provided with a plurality of inner fire holes 111 sequentially arranged at intervals along the circumferential direction of the inner fire cover 11.

Optionally, the plurality of inner fire holes 111 include a first inner fire hole and a second inner fire hole, and the distance from the first inner fire hole to the fire transfer hole 113 and the distance from the second inner fire hole to the fire transfer hole 113 are the smallest compared to the other inner fire holes 111, for example, the first inner fire hole and the second inner fire hole may be respectively located at two sides of the fire transfer hole 113, wherein the distance from the first inner fire hole to the fire transfer hole 113 and the distance from the second inner fire hole to the fire transfer hole 113 are both smaller than the distance from the first inner fire hole to the second inner fire hole, so that the fire transfer hole 113 may rapidly and smoothly transfer flame to the entire inner fire hole 111 of the inner fire cover 11.

With reference to fig. 6 to 8, the process of transferring fire from the outer fire cover 12 to the inner fire cover 11 will be described:

after the ignition hole 123 is ignited successfully, the flame at the ignition hole 123 is transmitted to the flame transfer hole 113, the flame transfer hole 113 is ignited, and the flame at the flame transfer hole 113 is transmitted to the inner flame hole 111, so that the whole inner flame cover 11 is ignited.

The embodiment of the disclosure also provides a gas stove, which comprises a burner, wherein the burner is provided with the fire cover assembly and the gas distribution plate in any one of the above embodiments, and the fire cover assembly is positioned above the gas distribution plate.

The gas stove provided by the embodiment of the disclosure has all the beneficial effects of the fire cover assembly in any one of the above embodiments because the gas stove comprises the fire cover assembly in any one of the above embodiments, and the description is omitted here.

Optionally, as shown in fig. 11, the fire lid assembly is provided with a limiting part; the air distribution plate 30 is provided with a limit matching part; the spacing portion is matched with the spacing matching portion to limit the fire cover assembly to rotate relative to the gas distribution 30 disc.

When the fire lid subassembly is connected with gas distribution plate 30, the supplementary fire of spacing portion and spacing cooperation portion is covered the subassembly and is divided the installation of gas distribution plate 30, plays prepositioning effect, guarantees the assembly accuracy of fire lid subassembly and gas distribution plate 30, guarantees simultaneously that the fire lid subassembly can not rotate for gas distribution plate 30, avoids 1 fire lid subassembly of combustor to rotate for gas distribution plate 30, causes gas distribution plate 30 to give vent to anger inhomogeneous, reduces combustor 1's combustion efficiency.

In addition, the position accuracy of the ignition hole 123 is guaranteed due to the fact that the outer fire cover 12 does not rotate, meanwhile, when the outer fire cover 12 is matched with the energy gathering ring, the outer fire cover does not rotate, the fact that the fire avoiding position 1211 of the outer fire cover corresponds to a supporting claw of the energy gathering ring can be guaranteed, the supporting claw is prevented from being ignited by flame of the outer fire cover to generate high smoke, the inner fire cover 11 does not rotate, the fact that the fire transfer hole 113 of the inner fire cover 11 corresponds to the fire transfer groove 125 and the ignition control 123 of the outer fire cover 12 is guaranteed, and the outer fire is guaranteed to be smoothly transferred to the inner fire cover 11 after being ignited.

Optionally, the lower surface of the fire cover assembly is provided with a limiting part, the upper surface of the gas distribution plate 30 is provided with a limiting matching part, the limiting part is matched with the limiting matching part, and when the limiting part is matched with the limiting matching part, the fire cover assembly cannot rotate relative to the gas distribution plate 30.

Alternatively, as shown in fig. 4, 10 and 11, the air distribution plate 30 includes an upper air distribution plate 301 and a lower air distribution plate 302, and the limit engagement portions may be disposed on the upper air distribution plate 301.

Optionally, the limiting portion includes a first sub-limiting portion 107 and a second sub-limiting portion 108, the first sub-limiting portion 107 is disposed on the lower surface of the outer fire cover 12, the second sub-limiting portion 108 is disposed on the lower surface of the inner fire cover 11, the limiting fitting portion includes a first sub-limiting fitting portion 306 and a second sub-limiting fitting portion 306, the first sub-limiting fitting portion 306 and the second sub-limiting fitting portion 306 are both disposed on the upper surface of the upper gas distribution plate 301, wherein the first sub-limiting portion 107 is adapted to the first sub-limiting fitting portion 306, the second sub-limiting portion 108 is adapted to the second sub-limiting fitting portion 306, when the first sub-limiting portion 107 is fitted to the first sub-limiting fitting portion 306, the outer fire cover 12 cannot rotate relative to the upper gas distribution plate 301, and when the second sub-limiting portion 108 is fitted to the second sub-limiting fitting portion 306, the inner fire cover 11 cannot rotate relative to the upper gas distribution plate 301.

Optionally, one of the first sub-limiting part 107 and the first sub-limiting matching part 306 includes a third protrusion, the other of the first sub-limiting part 107 and the first sub-limiting matching part 306 includes a third groove, the third protrusion is matched with the third groove, when the third protrusion is inserted into the third groove, the first sub-limiting part 107 is matched with the first sub-limiting matching part 306, and the outer fire cover 102 and the upper gas distribution plate 301 cannot rotate relatively.

Optionally, one of the second sub-limiting part 108 and the second sub-limiting matching part 306 includes a fourth protrusion, the other of the second sub-limiting part 108 and the second sub-limiting matching part 306 includes a fourth groove, the fourth protrusion is matched with the fourth groove, when the fourth protrusion is inserted into the fourth groove, the second sub-limiting part 108 is matched with the second sub-limiting matching part 306, and the inner fire cover 11 and the upper gas distribution plate 301 cannot rotate relatively.

The above description and drawings sufficiently illustrate embodiments of the disclosure to enable those skilled in the art to practice them. Other embodiments may include structural and other changes. The examples merely typify possible variations. Individual components and functions are optional unless explicitly required, and the sequence of operations may vary. Portions and features of some embodiments may be included in or substituted for those of others. The embodiments of the present disclosure are not limited to the structures that have been described above and shown in the drawings, and various modifications and changes may be made without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.

Claims (10)

1. An outer fire cover (12) of a burner (1), comprising:

a top wall (1221) having an annular shape;

an inner side wall (1222) disposed at an inner edge of the top wall (1221) and located below the top wall (1221);

an outer side wall (1223) provided at an outer edge of the top wall (1221) and located below the top wall (1221);

the top wall (1221), the inner side wall (1222), and the outer side wall (1223) collectively defining an outer mixing chamber (128);

the outer fire cover (12) is provided with a fire transfer groove (125), and the fire transfer groove (125) penetrates through the top wall (1221), the inner side wall (1222) and the outer side wall (1223), penetrates through the outer air mixing chamber (128) and is directly communicated with the outer air mixing chamber (128);

wherein, the two opposite side walls of the fire transfer groove (125) are inclined in the same direction and have non-zero included angles with the vertical direction.

2. Outer fire cover (12) of a burner (1) according to claim 1,

the outer fire cover (12) is further provided with an ignition hole (123) communicated with the outer gas mixing chamber (128), and the ignition hole (123) is suitable for being matched with an ignition needle (13) of the combustor to ignite.

3. Outer fire cover (12) of a burner (1) according to claim 2, characterised in that it further comprises:

and the ignition cap (124) is arranged on the inner side wall (1222) and corresponds to the ignition hole (123).

4. The outer fire cover (12) of a burner (1) according to claim 3, wherein the fire transfer groove (125) is open at an upper end, the outer fire cover (12) further comprising:

the cap peak (126) is connected with the ignition cap (124), the cap peak (126) comprises a connecting part (1261) and a shielding part (1262) which are connected, the connecting part (1261) is arranged at one side of the opening end of the fire transfer groove (125), and the shielding part (1262) is arranged above the connecting part (1261) and covers at least part of the opening end of the fire transfer groove (125);

and the protrusion (127) is arranged on the other side of the open end of the fire transfer groove (125).

5. Outer fire cover (12) of a burner (1) according to any of claims 1 to 4,

the inner wall surface of the outer air mixing chamber (128) is at least partially recessed to form a groove (129), and the fire transfer groove (125) is communicated with the outer air mixing chamber (128) through the groove (129).

6. A fire lid assembly, comprising:

an inner fire cover (11);

outer flame cover (12) of burner (1) according to any of claims 1 to 5, fitted over the outer side of inner flame cover (11).

7. The fire lid assembly of claim 6,

the inner fire cover (11) limits an inner air mixing chamber (112), the inner fire cover (11) is provided with a fire transfer hole (113), the fire transfer hole (113) is communicated with the inner air mixing chamber (112), and the fire transfer hole (113) corresponds to the ignition hole (123).

8. The fire lid assembly of claim 7,

the fire transfer holes (113) extend in the horizontal direction; alternatively, the first and second electrodes may be,

along the flowing direction of the fuel gas in the fire transfer holes (113), the fire transfer holes (113) are inclined upwards.

9. A gas cooker, characterized in that it comprises a burner (1), said burner (1) comprising:

a fire lid assembly as claimed in any one of claims 6 to 8;

and the gas distribution plate (30) is arranged below the fire cover component.

10. Gas burner according to claim 9,

the fire cover assembly is provided with a limiting part;

the gas distribution disc (30) is provided with a limit matching part;

the limiting part is matched with the limiting matching part to limit the fire cover assembly to rotate relative to the gas distribution disc (30).

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