CN219318432U - Outer ring fire cover and burner with same - Google Patents

Abstract

The utility model provides an outer ring fire cover and a combustor with the same. The outer ring fire cover comprises: the fire cover body is provided with a mixing cavity; the fire transmission part is arranged on the fire cover body, the fire transmission part is provided with a fire transmission channel, the fire transmission channel comprises an air inlet and a fire outlet, the air inlet is communicated with the air mixing cavity, the fire outlet is positioned on the outer surface of the fire transmission part, and at least one part of the outer surface of the fire transmission part where the fire outlet is positioned faces upwards and/or obliquely upwards; and the shielding part is arranged above the fire transmission part, and the orthographic projection of the shielding part on the horizontal plane covers the orthographic projection of at least one part of the fire outlet on the horizontal plane. Therefore, when overflows, greasy dirt and the like drop, the blockage of a fire transmission channel caused by the fact that the greasy dirt and the like drop to a fire outlet can be prevented, and further the fire transmission effect of the fire transmission part is better ensured.

Description

Outer ring fire cover and burner with same

Technical Field

The utility model relates to the technical field of cooking appliances, in particular to an outer ring fire cover and a burner with the same.

Background

Currently, there are burners commonly found on household gas cookers, which generally comprise an outer ring fire cover and a central fire cover located in the center of the outer ring fire cover. The outer circumferences of the outer ring fire cover and the center fire cover are generally provided with fire holes, and the mixed gas of the fuel gas and the air flows out from the fire holes of the outer ring fire cover and the fire holes of the center fire cover and burns.

The flame is typically burned in the center flame cover and then conducted from the center flame cover to the outer ring flame cover. In order to facilitate the conduction of flame, the outer ring fire cover is normally provided with a igniting groove, and the flame at the central fire cover ignites the igniting groove and is transmitted to the fire hole of the outer ring fire cover through the igniting groove.

The ignition slot is generally relatively small in width because of structural and functional limitations of the ignition slot. In daily life, overflows, greasy dirt and the like easily cause blockage to the ignition groove, and the conduction of flame is affected.

Disclosure of Invention

In order to at least partially solve the problems of the prior art, according to one aspect of the present utility model, an outer ring fire cover is provided. The outer ring fire cover comprises: the fire cover body is provided with a mixing cavity; the fire transmission part is arranged on the fire cover body, the fire transmission part is provided with a fire transmission channel, the fire transmission channel comprises an air inlet and a fire outlet, the air inlet is communicated with the air mixing cavity, the fire outlet is positioned on the outer surface of the fire transmission part, and at least one part of the outer surface of the fire transmission part where the fire outlet is positioned faces upwards and/or obliquely upwards; and the shielding part is arranged above the fire transmission part, and the orthographic projection of the shielding part on the horizontal plane covers the orthographic projection of at least one part of the fire outlet on the horizontal plane.

The outer ring fire lid that this application provided shelters from the setting of portion, when dropping such as overflow, greasy dirt, can prevent that greasy dirt etc. from dripping to the fire outlet and causing the jam of passing the fire passageway, and then guarantee the fire effect of passing the fire portion better.

The fire cover body comprises a fire cover top wall, a fire cover inner side wall connected to the inner periphery of the fire cover top wall and a fire cover outer side wall connected to the outer periphery of the fire cover top wall, wherein the fire cover top wall, the fire cover inner side wall and the fire cover outer side wall are surrounded to form a mixing cavity, at least part of the structure of the fire transmission part protrudes out of the fire cover top wall, and the shielding part is connected to the top of the fire transmission part. The shielding part at the top of the fire transmission part is positioned at the relatively highest position, so that better shielding effect can be achieved on overflow greasy dirt and the like above, and the structure is more reasonable.

Illustratively, the fire transfer portion includes a fire transfer top wall located above the fire cover top wall and a fire transfer side wall connected between the fire transfer top wall and the fire cover top wall, the fire transfer top wall and the fire transfer side wall enclose to form a fire transfer cavity, the fire transfer cavity is communicated with the air mixing cavity, the fire outlet is located on the fire transfer side wall, and the shielding portion is connected to the fire transfer top wall. Therefore, the shielding part is connected to the fire transmission top wall at the highest position, and the structure is simple and reasonable. The fire outlet is positioned on the fire transmission side wall which is connected between the fire transmission top wall and the fire cover top wall, namely the height of the fire transmission side wall is higher than that of the fire cover top wall. The setting like this can avoid the greasy dirt excessive current on the fire lid body to the fire outlet department and influence and block up the fire transfer passageway, guarantees the fire transfer effect.

The fire transfer side wall comprises a first fire transfer side wall and a second fire transfer side wall which are oppositely arranged along the circumferential direction of the outer ring fire cover, wherein the first fire transfer side wall is downwards arranged from the fire transfer top wall and is obliquely arranged towards a direction away from the second fire transfer side wall, and at least one part of the fire outlet is positioned on the first fire transfer side wall. The first fire transfer side wall that like this slope set up is more favorable to the flow of gas mixture in passing the fire intracavity, and the structure setting is more reasonable.

The second fire transfer side wall is disposed obliquely downward from the fire transfer top wall and toward a direction away from the first fire transfer side wall, and an orthographic projection of the shielding portion on a horizontal plane does not overlap with an orthographic projection of the second fire transfer side wall on the horizontal plane. Thus, after the overflowed liquid and the like fall on the shielding part, part of the overflowed liquid flows onto the second fire transfer side wall, and the overflowed liquid can flow down along the second fire transfer side wall due to the inclined arrangement of the second fire transfer side wall, so that the overflowed liquid and the like are prevented from being accumulated on the fire transfer part. And moreover, the dead angle which is easy to accumulate greasy dirt is not formed between the second fire transmission side wall and the shielding part, so that the cleanliness of the outer ring fire cover can be better ensured.

The fire transfer side walls further include a third fire transfer side wall connected between the first and second fire transfer side walls and extending from the fire lid inner side wall to the fire transfer top wall, and a fourth fire transfer side wall connected between the first and second fire transfer side walls and extending from the fire lid outer side wall to the fire transfer top wall, and a fire outlet extending from the third fire transfer side wall to the fourth fire transfer side wall via the first fire transfer side wall, and the fire outlet extending on a plane at an acute angle to the fire lid top wall. The setting is that the fire outlet on the third that is closer to the center fire lid passes the fire lateral wall earlier and is lighted, and then the fire is passed to the fire outlet that is located on first fire lateral wall and the fourth fire lateral wall, and the fire effect of passing is better. In addition, the fire transmission channel can be processed more simply and more efficiently, and the production cost is further reduced.

Illustratively, the third fire transfer sidewall extends in a vertical direction. Thus, the plane of the fire outlet on the third fire transmission side wall is parallel to the vertical plane, and accumulation of overflows, greasy dirt and the like can be avoided. The overflows scattered onto the third fire transfer side wall can flow down along the third fire transfer side wall, so that the fire transfer effect is further prevented from being influenced by blocking the fire transfer channel.

Illustratively, the dimension of the shield portion is comparable to the dimension of the flame transfer top wall in the radial direction of the flame cover body. The arrangement prevents the shielding part from occupying excessive space while ensuring the shielding of the overflow greasy dirt of the shielding part.

Illustratively, the shielding portion has a plate-like structure extending in the horizontal direction. Therefore, burning of the shielding part of the flame can be reduced as much as possible, the shielding effect is better, and the structure is simpler.

Illustratively, the fire outlet extends continuously or is disposed intermittently between the inner and outer peripheral edges of the fire cover body. Therefore, the flame on the inner peripheral side of the outer ring fire cover can be better transferred to the outer peripheral side of the outer ring fire cover, and the stability of fire transfer is better.

The fire transmission parts are multiple and are arranged at intervals, and the shielding parts are multiple and correspond to the fire transmission parts one by one; or the shielding part is arranged above a part of the plurality of fire transmission parts. The fire transmission effect of the outer ring fire cover can be better guaranteed through the plurality of fire transmission parts, and even if partial fire transmission parts are blocked, other fire transmission parts can still transmit fire.

According to another aspect of the present utility model, there is also provided a burner. The burner comprises a distributor and any outer ring fire cover, wherein the outer ring fire cover is buckled on the distributor, and the distributor seals the mixing cavity.

In the summary, a series of concepts in a simplified form are introduced, which will be further described in detail in the detailed description section. This summary is not intended to identify key features or essential features of the claimed subject matter, nor is it intended to be used as an aid in determining the scope of the claimed subject matter.

Advantages and features of the utility model are described in detail below with reference to the accompanying drawings.

Drawings

The following drawings are included to provide an understanding of the utility model and are incorporated in and constitute a part of this specification. Embodiments of the present utility model and their description are shown in the drawings to explain the principles of the utility model. In the drawings of which there are shown,

FIG. 1 is a perspective view of an outer ring fire cover according to an exemplary embodiment of the present utility model;

FIG. 2 is a partial cross-sectional view of an outer ring fire cover according to an exemplary embodiment of the utility model;

FIG. 3 is an enlarged view of a portion M of FIG. 2;

FIG. 4 is a perspective view of an outer ring fire cover according to an exemplary embodiment of the utility model, wherein the shielding is not shown;

FIGS. 5-6 are perspective views of an outer ring fire cover according to an exemplary embodiment of the present utility model;

FIG. 7 is a top view of an outer ring fire cover according to an exemplary embodiment of the utility model;

FIG. 8 is a cross-sectional view taken at A-A of FIG. 7;

fig. 9 is a partial enlarged view of the portion N of fig. 8;

FIG. 10 is a cross-sectional view at B-B in FIG. 7;

FIG. 11 is a front view of an outer ring fire cover according to an exemplary embodiment of the utility model; and

fig. 12 is a side view of an outer ring fire cover according to an exemplary embodiment of the utility model.

Wherein the above figures include the following reference numerals:

100. a fire cover body; 110. a mixing chamber; 120. a fire cover top wall; 130. the inner side wall of the fire cover; 140. the outer side wall of the fire cover; 141. a main fire hole; 150. a boss; 200. a fire transmission part; 210. a fire transfer channel; 211. an air inlet; 212. a fire outlet; 212b, upper end; 221c, lower end; 220. a fire transfer top wall; 230. a fire transfer side wall; 231. a first fire transfer sidewall; 232. a second fire transfer sidewall; 233. a third fire transfer side wall; 234. a fourth fire transfer sidewall; 250. a fire transferring cavity; 260. a fire hole; 300. a shielding part.

Detailed Description

In the following description, numerous details are provided to provide a thorough understanding of the utility model. However, it will be understood by those skilled in the art that the following description illustrates preferred embodiments of the utility model by way of example only and that the utility model may be practiced without one or more of these details. Furthermore, some technical features that are known in the art have not been described in detail in order to avoid obscuring the utility model.

In the following description, a detailed structure will be presented for a thorough understanding of embodiments of the present utility model. It will be apparent that embodiments of the utility model may be practiced without limitation to the specific details that are set forth by those skilled in the art. Preferred embodiments of the present utility model are described in detail below, however, the present utility model may have other embodiments in addition to these detailed descriptions.

For household gas cookers, the burner usually comprises an outer ring fire cover (also called a large fire cover) located on the outer ring and a central fire cover (also called a small fire cover) located in the center. The center fire cover and the outer ring fire cover can form at least two rings of flames, thereby providing multiple flame modes when the user uses the flame. Accordingly, the burner further includes a high fire distributor and a low fire distributor. The small fire distributor is arranged at the center of the big fire distributor. The outer ring fire cover and the center fire cover are respectively covered on the big fire distributor and the small fire distributor. The big fire distributor and the outer ring fire cover are buckled to form a big fire mixing cavity. The small fire distributor and the central fire cover are buckled to form a small fire mixing cavity. The burner's ignition pin is typically positioned around the center fire cap to ignite the gas of the light-fire mixing chamber. The flame of the large flame mixing chamber is usually ignited by the flame of the center fire cover.

An outer ring fire cover of an embodiment of the present utility model will be described with reference to fig. 1 to 12.

The embodiment of the utility model provides an outer ring fire cover. Referring to fig. 1-4 in combination, the outer ring fire cover may include a fire cover body 100, a fire transfer portion 200, and a shielding portion 300. The fire cover body 100 may be provided with a mixing chamber 110. The fire transfer part 200 may be disposed on the fire cover body, the fire transfer part 200 may be provided with a fire transfer channel 210, the fire transfer channel 210 may include an air inlet 211 and a fire outlet 212, the air inlet 211 is communicated with the air mixing cavity 110, and the fire outlet 212 is disposed on the outer surface of the fire transfer part 200. The gas mixture in the gas mixture chamber 110 enters the flame transfer portion 200. Sequentially passes through the air inlet 211 and the fire outlet 212, and is ignited at the fire outlet 212. The extending direction of the fire outlet 212 may be set according to the requirement. In the embodiment shown in fig. 4, the ports 212 are provided extending outwardly from the center in the radial direction of the outer ring fire cover, but may be provided from the inner periphery side to the outer periphery side of the outer ring fire cover in any other direction. The fire outlet 212 may be arranged in a straight line or may have a certain arc. The fire outlet 212 may be continuous or may be a plurality of spaced apart fire outlets.

Referring to fig. 1, 4, 8, and 9 in combination, the outer surface 231a of the flame transfer portion 200 where at least a portion of the flame ports 212 are located may be directed upward and/or obliquely upward. The fire outlet 212 is located on the outer surface of the fire transfer portion 200, and the portion of the fire outlet 212 is correspondingly formed with an opening at the outer surface 231a of the fire transfer portion 200. Wherein the outer surface 231a is oriented upward and/or obliquely upward, i.e., the angle α of the outer surface 231a with respect to the horizontal plane in fig. 9 is zero or acute. The shielding portion 300 may be disposed above the fire transfer portion 200, and an orthographic projection of the shielding portion 300 on a horizontal plane may cover an orthographic projection of at least a portion of the fire outlet 212 on the horizontal plane. The shielding part 300 may be located above the fire transfer part 200 entirely or partially, so long as the orthographic projection of the portion above the fire transfer part 200 on the horizontal plane can cover the projection of at least a portion of the fire outlet 212 on the horizontal plane. The outer surface 231a is inclined upward, and the lower end 212c of the flame exit 212 located thereon is protruded further outward than the upper end 212b (see fig. 9). This reduces the burning of the flame from the flame delivery portion 200 by the flame at the flame outlet 212. The outer surface 231a faces upward, so that the burning of the flame to the ignition portion 200 can be reduced more effectively. The setting of outer loop fire lid that this application provided, shelter from portion 300, when dropping such as overflow, greasy dirt, can prevent that greasy dirt etc. from dripping to fire outlet 212 and causing the jam of passing fire passageway 210, and then guarantee the fire effect of passing fire portion 200 better. The manner in which the burner delivers the fire is generally classified into hidden and non-hidden (also known as open). The outer ring fire cover is particularly suitable for a non-hidden burner, has simpler production process and lower cost, and can easily block a fire transmission part exposed outside to prevent fire transmission. The arrangement of the shielding part 300 can better solve the problem and ensure the fire transmission effect. Of course, the outer ring fire cover provided by the application can also be applied to some hidden combustors, and the application is not limited in this way.

For example, referring to fig. 1, 2 and 12 in combination, the fire cover body 100 may include a fire cover top wall 120, a fire cover inner side wall 130, and a fire cover outer side wall 140. The fire cover inner side wall 130 may be connected to an inner periphery of the fire cover top wall 120. The fire cover outer side wall 140 may be connected to the outer periphery of the fire cover top wall 120. The fire cover top wall 120, the fire cover inner side wall 130, and the fire cover outer side wall 140 may surround to form the mixing chamber 110, at least part of the structure of the fire transfer part 200 protrudes from the fire cover top wall 120, and the shielding part 300 may be connected to the top of the fire transfer part 200. The top wall 120 of the fire cover may be circular in shape along the horizontal as in the illustrated embodiment, or may be inclined at an angle to the horizontal and/or may be otherwise shaped. Likewise, the inner and outer fire cover side walls 130, 140 may be disposed at any angle and shape. At least part of the structure of the flame transfer part 200 protrudes from the flame cover top wall 120, and the shielding part 300 connected to the top of the flame transfer part 200 is at a higher level than the flame cover top wall 120. The shielding part 300 positioned at the top of the fire transmission part 200 is positioned at the highest position, so that better shielding effect can be achieved on overflow greasy dirt and the like above, and the structure is more reasonable. In other embodiments, the shield may be connected to other locations. Illustratively, the shield may include a support post disposed on the top wall of the fire cover and a support plate supported on the support post. Illustratively, the shield 300 may be welded to the top of the flame transfer portion 200, with a more stable connection, simpler manufacturing process, and lower cost. Alternatively, the shield may be attached to the top of the fire delivery portion by other structures, such as a snap fit, a fastener connection, or the like.

Illustratively, referring to fig. 2, the firestop portion 200 may include a firestop top wall 220 and a firestop side wall 230. The flame transfer top wall 220 may be located above the flame cover top wall 120. The firearms 230 may be connected between the firearms top wall 220 and the firecap top wall 120. The fire transfer top wall 220 and the fire transfer side walls 230 may be surrounded to form a fire transfer cavity 250, the fire transfer cavity 250 may be in communication with the mixing cavity 110, the fire outlet 212 may be located on the fire transfer side walls 230, and the shield 300 may be connected to the fire transfer top wall 220. In this way, the shielding part 300 is connected to the fire passing top wall 220 at the highest position, and the structure is simple and reasonable. The fire outlet 212 is located on the fire transfer side wall 230, and the fire transfer side wall 230 is connected between the fire transfer top wall 220 and the fire cover top wall 120, i.e. the height of the fire transfer side wall 230 is higher than that of the fire cover top wall 120. By the arrangement, the oil dirt on the fire cover body 100 can be prevented from excessively flowing to the fire outlet 212 to influence and block the fire transfer channel 210, so that the fire transfer effect is ensured. Further, the fire outlet 212 may be disposed on the fire transfer side wall 230 closer to the fire transfer top wall 220 than the fire cover top wall 120 to further avoid oil contamination from blocking the fire transfer channel 210. In some embodiments, a shield may be connected to the fire transfer sidewall, and the shield may extend along the fire transfer sidewall to above the fire transfer.

Illustratively, referring to fig. 2, the fire transfer side wall 230 may include a first fire transfer side wall 231 and a second fire transfer side wall 232 disposed opposite in a circumferential direction of the outer ring fire cover. Wherein the first firearms 231 may be disposed obliquely downward from the firearms top wall 220 and toward a direction away from the second firearms 232. At least a portion of the fire exit 212 may be located on the first fire transfer sidewall 231. The gas mixture in the gas mixing chamber 110 enters the fire transfer chamber 250, passes through the fire transfer channel 210, flows out at the fire outlet 212 and burns. The first fire transferring side wall 231 which is obliquely arranged in this way is more beneficial to the flow of the gas mixture in the fire transferring cavity 250, and the structural arrangement is more reasonable. In the embodiment shown in fig. 11, the first fire-transmitting side wall 231 is a right side wall, and it is understood that in some embodiments, the first fire-transmitting side wall may also be a left side wall, on which side a fire-transmitting groove is disposed, and on which side wall is the first fire-transmitting side wall.

Illustratively, referring to fig. 11, the second firearms 232 may be disposed obliquely downward from the firearms top wall 220 and toward a direction away from the first firearms 231, with the orthographic projection of the shield 300 on the horizontal plane not overlapping with the orthographic projection of the second firearms 232 on the horizontal plane. Thus, when the overflow liquid or the like falls on the shielding portion 300, a part of the overflow liquid flows onto the second fire transfer side wall 232, and the inclined arrangement of the second fire transfer side wall 232 can enable the overflow liquid to flow down along the second fire transfer side wall 232, so that the overflow liquid or the like is prevented from being accumulated on the fire transfer portion 200. In addition, no dead angle easy to accumulate greasy dirt exists between the second fire transmission side wall 232 and the shielding part 300, so that the cleanliness of the outer ring fire cover can be better ensured. It will be appreciated that this embodiment provides for the second fire transfer side wall 232 of the outer ring fire cover not having the fire transfer passage 210 provided thereon. In some embodiments, the second fire transfer side wall and the first fire transfer side wall may be provided with fire transfer channels, and the shielding part is disposed on the fire transfer top wall and extends to two sides respectively. Illustratively, the angles of inclination of the first and second firearms 231 and 232 may be the same.

Illustratively, referring to fig. 4, 5, and 11, the fire transfer side wall 230 may further include a third fire transfer side wall 233 and a fourth fire transfer side wall 234. A third fire transfer sidewall 233 may be connected between the first and second fire transfer sidewalls 231, 232 and extend from the fire cover inner sidewall 130 to the fire transfer top wall 220. A fourth fire transfer side wall 234 may be connected between the first and second fire transfer side walls 231, 232 and extend from the fire cover outer side wall 140 to the fire transfer top wall 220. The fire exit 212 may extend from the third fire transfer side wall 233 to the fourth fire transfer side wall 234 via the first fire transfer side wall 231, with the fire exit 212 extending in a plane that is at an acute angle to the fire cover top wall 120. Thus, the flame transfer portion 200 has one flame exit 212 across three of the third flame transfer side wall 233, the first flame transfer side wall 231, and the fourth flame transfer side wall 234, and the flame exits 212 extending through the three flame transfer side walls are located in the same plane. Taking fig. 11 as an example, the included angle β between the plane of the fire outlets 212 of the three fire transfer side walls and the plane of the fire cover top wall 120 is an acute angle. So arranged, the fire outlet 212 on the third fire transfer side wall closer to the center fire cover is ignited first, and then the fire is transferred to the fire outlet 212 on the first fire transfer side wall 231 and the fourth fire transfer side wall 234, so that the fire transfer effect is better. In addition, the fire transfer channels 210 can be processed more simply and more efficiently, and the production cost is further reduced. For example, the fire transfer passages 210 may be machined in the third fire transfer side wall 233, the first fire transfer side wall 231, and the fourth fire transfer side wall 234 by one die cut.

For example, referring to fig. 10, the third fire transfer sidewall 233 may extend in a vertical direction. In this way, the plane of the fire outlet on the third fire transfer side wall 233 is parallel to the vertical plane, so that accumulation of spills, greasy dirt, etc. can be avoided. The spillover liquid scattered onto the third fire transfer side wall 233 can flow down the third fire transfer side wall 233, so as to further avoid blocking the fire transfer channel 210 and affecting the fire transfer effect. The third fire transfer side wall 233 can be flush with the corresponding inner side wall 130 of the fire cover, so that the production process is simpler and the cost is lower. Of course, in some embodiments, the third firepassing sidewall may be disposed at an angle. Illustratively, the fourth flame transfer side wall 234 may be inclined at the same angle as the inclined portion of the corresponding flame cover outer side wall 140.

Illustratively, referring to fig. 7, the shield 300 may be sized to correspond to the size of the flame transfer top wall 220 in the radial direction of the flame cover body 100. By the arrangement, excessive space occupation of the shielding part 300 is avoided while shielding of the overflow greasy dirt of the shielding part 300 is ensured. In some embodiments, the shielding portion may extend to both sides in a radial direction of the fire cover body and beyond both ends of the fire transfer top wall.

For example, referring to fig. 5 and 10 in combination, a pilot hole 260 may be provided on the third pilot sidewall 233. The ignition hole 260 may communicate the inside with the outside of the firetransferring chamber 250. The ignition holes 260 may be provided in plurality. Illustratively, the fire outlets on the third pass through slot 233 may have a partial structural coincidence with the pilot holes 260. In this way, the fire can be conducted better from the inner peripheral side of the outer ring fire cover to the outer peripheral side of the inner ring fire cover. Illustratively, the fire outlets on the fourth fire transfer side wall 234 are spaced from the main fire holes 141 of the outer ring fire cover by a distance less than a first predetermined distance to further secure the fire transfer effect.

For example, referring to fig. 1 and 11, the shielding part 300 may have a plate-like structure extending in a horizontal direction. Thus, burning of the shielding part 300 by the flame can be reduced as much as possible, the shielding effect is better, and the structural arrangement is simpler. In some embodiments, the shield may be disposed at an incline. Illustratively, the separation distance between the shield 300 and the flame exit 212 may be greater than a second predetermined distance to further reduce burning of the shield 300 by the flame. Illustratively, the shield 300 may be a stainless steel cover plate. The whole outer ring fire cover can be made of stainless steel materials, and the outer ring fire cover is high in structural strength, not easy to deform and good in durability. The shielding part of the stainless steel can be welded to the fire cover body, so that the production process is simpler and the cost is lower.

For example, the fire outlet 212 may extend continuously or be disposed intermittently between the inner and outer peripheral edges of the fire cover body 100. The continuously extending ports 212 may form a continuous flame between the inner periphery and the outer periphery of the flame cover body 100. Similarly, the intermittently disposed ports 212 may form a near continuous flame at each port in use. Therefore, the flame on the inner peripheral side of the outer ring fire cover can be better transferred to the outer peripheral side of the outer ring fire cover, and the stability of fire transfer is better. It will be appreciated that the outer annular flame cover provided by this embodiment provides a relatively continuous flame on the outer surface of the flame transfer portion 200 between the inner and outer peripheral edges of the flame cover body 100, which is more closely related to the non-concealed burner on the market, which can be better applied to such burners. Of course, in some cases, the outer ring fire cover provided by this embodiment may also be applied to a hidden burner.

For example, the fire transfer part 200 may be provided in plurality and spaced apart from each other. The shielding part 300 may be plural and correspond to the plural fire transfer parts 200 one by one, or the shielding part 300 may be disposed above a part of the plural fire transfer parts 200. The number of fire transfer parts 200 may be set according to the use requirement. The plurality of fire transmitting parts 200 can better ensure the fire transmitting effect of the outer ring fire cover, and even if partial fire transmitting parts are blocked, other fire transmitting parts can still transmit fire.

For example, referring to fig. 4, 10 and 12, the flame transfer part 200 may be one, and bosses 150 may be provided at opposite positions of the flame transfer part 200 in the radial direction of the flame cover body. The boss 150 may have the same shape and structure as the flame transfer portion 200. The boss 150 may not be provided with a fire transmission passage, a shielding portion, and the like. Thus, the demolding of the outer ring fire cover is more convenient, and the manufacturing cost is lower.

According to another aspect of the present utility model, there is also provided a burner. The burner may include a distributor and any of the outer annular fire covers described above. The outer ring fire cover may be snapped onto the distributor, which may cover the mixing chamber 110. In this way, the fire distributor and the outer ring fire cover can be enclosed to form the mixing cavity 110 with better tightness, and the fuel gas and the air can be fully mixed in the mixing cavity. Because the outer ring fire cover adopts the technical scheme of any one of the embodiments, the burner at least has the beneficial effects brought by the technical scheme of the embodiment, and the description is omitted herein. In addition, the burner may include a venturi, a center fire cap, and the like. The venturi and center fire cover may have various structures that may be present or may occur in the future and do not constitute a limitation on the scope of the present utility model.

In the description of the present utility model, it should be understood that the azimuth or positional relationships indicated by the azimuth terms such as "front", "rear", "upper", "lower", "left", "right", "transverse", "vertical", "horizontal", and "top", "bottom", etc., are generally based on the azimuth or positional relationships shown in the drawings, merely for convenience of describing the present utility model and simplifying the description, and these azimuth terms do not indicate and imply that the apparatus or elements referred to must have a specific azimuth or be constructed and operated in a specific azimuth, without limiting the scope of protection of the present utility model; the orientation terms "inner" and "outer" refer to the inner and outer relative to the outline of the components themselves.

For ease of description, regional relative terms, such as "above … …," "above … …," "upper surface at … …," "above," and the like, may be used herein to describe regional positional relationships of one or more components or features to other components or features illustrated in the figures. It will be understood that the relative terms of regions include not only the orientation of the components illustrated in the figures, but also different orientations in use or operation. For example, if the element in the figures is turned over entirely, elements "over" or "on" other elements or features would then be included in cases where the element is "under" or "beneath" the other elements or features. Thus, the exemplary term "above … …" may include both orientations of "above … …" and "below … …". Moreover, these components or features may also be positioned at other different angles (e.g., rotated 90 degrees or other angles), and all such cases are intended to be encompassed herein.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments in accordance with the present application. As used herein, the singular is also intended to include the plural unless the context clearly indicates otherwise, and furthermore, it is to be understood that the terms "comprises" and/or "comprising" when used in this specification are taken to specify the presence of stated features, steps, operations, components, assemblies, and/or combinations thereof.

It should be noted that the terms "first," "second," and the like in the description and claims of the present application and the above figures are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged where appropriate such that embodiments of the present application described herein may be implemented in sequences other than those illustrated or described herein.

The present utility model has been illustrated by the above-described embodiments, but it should be understood that the above-described embodiments are for purposes of illustration and description only and are not intended to limit the utility model to the embodiments described. In addition, it will be understood by those skilled in the art that the present utility model is not limited to the embodiments described above, and that many variations and modifications are possible in light of the teachings of the utility model, which variations and modifications are within the scope of the utility model as claimed. The scope of the utility model is defined by the appended claims and equivalents thereof.

Claims (11)

1. An outer ring fire cover, comprising:

the fire cover comprises a fire cover body, wherein a mixing cavity is arranged on the fire cover body;

the fire transmission part is arranged on the fire cover body, the fire transmission part is provided with a fire transmission channel, the fire transmission channel comprises an air inlet and a fire outlet, the air inlet is communicated with the air mixing cavity, the fire outlet is positioned on the outer surface of the fire transmission part, and the outer surface of the fire transmission part where at least one part of the fire outlet is positioned faces upwards and/or obliquely upwards; and

the shielding part is arranged above the fire transmission part, and the orthographic projection of the shielding part on the horizontal plane covers the orthographic projection of at least one part of the fire outlet on the horizontal plane.

2. The outer ring fire cover of claim 1 wherein said fire cover body comprises a fire cover top wall, a fire cover inner side wall connected to an inner periphery of said fire cover top wall, and a fire cover outer side wall connected to an outer periphery of said fire cover top wall, said fire cover inner side wall, and said fire cover outer side wall surrounding to form said mixing chamber,

at least part of the structure of the fire transfer part protrudes out of the top wall of the fire cover, and the shielding part is connected to the top of the fire transfer part.

3. The outer ring fire cover of claim 2 wherein the fire transfer portion includes a fire transfer top wall above the fire cover top wall and a fire transfer side wall connected between the fire transfer top wall and the fire cover top wall, the fire transfer top wall and the fire transfer side wall surrounding to form a fire transfer cavity, the fire transfer cavity in communication with the air mixing cavity, the fire outlet located on the fire transfer side wall, the shielding portion connected to the fire transfer top wall.

4. The outer ring fire cover according to claim 3, wherein the fire transfer side wall includes a first fire transfer side wall and a second fire transfer side wall disposed opposite to each other in a circumferential direction of the outer ring fire cover, wherein,

the first fire transfer side wall is obliquely arranged downwards from the fire transfer top wall and is far away from the second fire transfer side wall, and at least one part of the fire outlet is positioned on the first fire transfer side wall.

5. The outer ring fire cover of claim 4 wherein the second fire transfer side wall is disposed obliquely downward from the fire transfer top wall and toward a direction away from the first fire transfer side wall, an orthographic projection of the shield on the horizontal plane not overlapping an orthographic projection of the second fire transfer side wall on the horizontal plane.

6. The outer annular fire cover of claim 4 wherein the fire transfer side walls further comprise a third fire transfer side wall connected between the first and second fire transfer side walls and extending from the fire cover inner side wall to the fire transfer top wall, and a fourth fire transfer side wall connected between the first and second fire transfer side walls and extending from the fire cover outer side wall to the fire transfer top wall, the fire outlet extending from the third fire transfer side wall to the fourth fire transfer side wall via the first fire transfer side wall, and the fire outlet extending in a plane at an acute angle to the fire cover top wall.

7. The outer ring fire cover of claim 6 wherein the third fire transfer sidewall extends in a vertical direction.

8. An outer ring fire cover according to claim 3, wherein the shield is of a size comparable to the size of the fire transfer top wall in the radial direction of the fire cover body.

9. The outer ring fire cover according to claim 1, wherein the shielding part has a plate-like structure extending in a horizontal direction; and/or

The fire outlet extends continuously or is arranged discontinuously between the inner periphery and the outer periphery of the fire cover body.

10. The outer ring fire cover of claim 1 wherein the fire transfer portions are plural and spaced apart from each other, wherein

The shielding parts are multiple and correspond to the fire transmission parts one by one; or alternatively

The shielding part is arranged above a part of the plurality of fire transmission parts.

11. A burner comprising an distributor and an outer ring fire cover as claimed in any one of claims 1 to 10, the outer ring fire cover being snapped onto the distributor, the distributor closing off the mixing chamber.

Images