CN216953048U - Gas stove, burner and fire dividing cover - Google Patents

Abstract

The utility model relates to a gas stove, a burner and a fire distribution cover, wherein the fire distribution cover is arranged on a bottom cover of the burner and comprises a cover body. At least two vent grooves penetrating through two opposite surfaces of the cover body are arranged on the side wall of the concave part at intervals, and the at least two vent grooves are spirally distributed on the side wall of the concave part anticlockwise or clockwise. Because the concave part is arranged on the top surface of the cover body, the flame is positioned in the concave part during combustion, the influence of external airflow on the combustion flame in the concave part can be effectively prevented, and the windproof effect is enhanced; the combined ventilation groove is spirally arranged on the side wall of the concave part, on one hand, vortex air flow can be formed in the concave part, so that inclined rotating flame can be realized, and meanwhile, gas and flame can be drawn close to the central axis of the cover body through the side wall of the concave part, so that the flame is effectively easy to gather, and the heat efficiency is improved; on the other hand, even if the flame of one of the ventilation grooves is blown out by wind, the flame can still be re-ignited.

Description

Gas stove, burner and fire dividing cover

Technical Field

The utility model relates to the technical field of cookers, in particular to a gas stove, a burner and a fire distribution cover.

Background

The gas cooker is a kitchen utensil heated by direct fire with liquefied petroleum gas (liquid), artificial gas, natural gas and other gas fuels. The gas stove is called a stove plate, the popularization degree of the gas stove is unknown, and a passing concept is difficult to see. Gas stoves are mainly classified into liquefied gas stoves, and natural gas stoves, depending on the source of the gas. According to the range, the range is divided into a single range, a double range and a multi-range. The burner is one of the core components of the gas stove, and is mainly used for burning gas to form flame and heating a pot and food materials above the burner. The traditional furnace end has the defects of poor wind resistance, poor temperature uniformity and the like, and in order to enhance the wind resistance, a wind-proof part is usually additionally arranged on part of the furnace end, so that the wind resistance is improved to a certain degree, the cost is increased, and the thermal efficiency is influenced.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a fire distributing cover which can effectively ensure the wind-proof performance and the temperature-equalizing performance, and has high heat efficiency and controllable cost.

The second technical problem to be solved by the utility model is to provide a burner which can effectively ensure the windproof performance and the temperature-equalizing performance, and has high thermal efficiency and controllable cost.

The third technical problem to be solved by the utility model is to provide a gas stove, which can effectively ensure the wind-proof performance and the temperature-equalizing performance, and has higher thermal efficiency and controllable cost.

The first technical problem is solved by the following technical scheme:

the utility model provides a divide the fire lid, divide the fire lid to be used for installing on the bottom of furnace end, divide the fire lid to include: the top surface of the cover body is provided with a concave part which is concavely arranged towards the bottom cover, the side wall of the concave part is provided with at least two vent grooves which penetrate through two opposite surfaces of the cover body at intervals, and the at least two vent grooves are spirally distributed on the side wall of the concave part anticlockwise or clockwise; the side wall of the concave part and the bottom wall of the concave part form an included angle, the included angle formed by matching the side wall of the concave part and the bottom wall of the concave part is defined as a, and the included angle a is set to be larger than 90 degrees.

Compared with the background art, the fire distribution cover has the following beneficial effects:

according to the fire distribution cover, the concave part is arranged on the top surface of the cover body, and the fire is positioned in the concave part during combustion, so that the influence of external air flow on combustion flame in the concave part can be effectively prevented, and the windproof effect is enhanced; the combined ventilation groove is spirally arranged on the side wall of the concave part, on one hand, vortex type airflow can be formed in the concave part, so that inclined rotating flame can be realized, and meanwhile, fuel gas and flame can be drawn close to the central axis of the cover body through the side wall of the concave part, so that the flame is effectively easy to draw close, and the heat efficiency is improved; on the other hand, even if the flame of one of the ventilation grooves is blown out by wind, the flame can still be re-ignited. Therefore, compared with the traditional fire dividing cover, the combustion stability can be greatly improved, and the heat efficiency and the windproof performance are improved.

In one embodiment, the top surface of the cap body includes a central portion and a peripheral portion disposed circumferentially around the central portion; the middle part is concavely arranged towards the bottom cover to form the concave part; the end of the vent slot extends to the bottom wall of the recess and/or the peripheral region.

In one embodiment, the vent groove is a strip groove; a plane parallel to the top surface of the cap body is defined as a reference surface, the vent groove projects on the reference surface along a direction perpendicular to the top surface of the cap body, a projection point of the central axis of the cap body on the reference surface is defined as O, a projection point of one end of the vent groove away from the central axis of the cap body on the reference surface is defined as a, a projection point of one end of the vent groove close to the central axis of the cap body on the reference surface is defined as B, a connection line of the point a and the point O is a first connection line, a connection line of the point a and the point B is a second connection line, the first connection line and the second connection line form an included angle B, and the included angle B is set to be 15-75 degrees.

In one embodiment, the vent slots are evenly disposed on the top surface of the cap body about the central axis of the cap body. Therefore, the flame in the concave part is more uniform, the combustion stability can be greatly improved, and the heat efficiency and the wind resistance are improved.

In one embodiment, the included angle a is 110 ° to 130 °. Specifically, a is 120 °.

In one embodiment, the bottom wall of the concave part is provided with a fire transfer hole, and the fire transfer hole is arranged in the area between two adjacent vent grooves. So, through the biography fire hole that sets up, can realize the mutual quick transmission of flame of two adjacent air channels, can improve and prevent wind the performance.

In one embodiment, a convex hull protruding towards the direction far away from the bottom cover is arranged on the bottom wall of the concave part; the outer surface of the convex hull is a semi-spherical surface and a semi-ellipsoid surface. Therefore, the convex hull can be beneficial to the flame in the concave part to be close to the central axis of the cover body, thereby improving the heat efficiency.

In one embodiment, the top surface of the cover body is provided with an ignition hole, and the ignition hole is used for installing an ignition needle.

The second technical problem is solved by the following technical solutions:

the furnace end comprises the fire distribution cover, a bottom cover and an injection pipe; the cover body is arranged on the bottom cover and is enclosed with the bottom cover to form a cavity, and the vent groove is communicated with the cavity; the first end of the injection pipe is connected with the bottom cover or the cover body, the inner passage of the injection pipe is communicated with the cavity, and the second end of the injection pipe is used for introducing fuel gas.

Compared with the background art, the furnace end of the utility model has the following beneficial effects:

according to the burner, the concave part is arranged on the top surface of the cover body, and the burner is positioned in the concave part during flame combustion, so that the influence of external air flow on combustion flame in the concave part can be effectively prevented, and the windproof effect is enhanced; the combined ventilation groove is spirally arranged on the side wall of the concave part, on one hand, vortex air flow can be formed in the concave part, so that inclined rotating flame can be realized, and meanwhile, gas and flame can be drawn close to the central axis of the cover body through the side wall of the concave part, so that the flame is effectively easy to gather, and the heat efficiency is improved; on the other hand, even if the flame of one of the air ducts is blown out by wind, the flame can be reignited. Therefore, compared with the traditional fire dividing cover, the combustion stability can be greatly improved, and the heat efficiency and the windproof performance are improved.

The third technical problem is solved by the following technical scheme:

a gas stove comprises the fire distribution cover.

Compared with the background technology, the gas stove provided by the utility model has the following beneficial effects:

according to the gas stove, the concave part is arranged on the top surface of the cover body, and the flame is positioned in the concave part during combustion, so that the influence of external air flow on the combustion flame in the concave part can be effectively prevented, and the windproof effect is enhanced; the combined ventilation groove is spirally arranged on the side wall of the concave part, on one hand, vortex type airflow can be formed in the concave part, so that inclined rotating flame can be realized, and meanwhile, fuel gas and flame can be drawn close to the central axis of the cover body through the side wall of the concave part, so that the flame is effectively easy to draw close, and the heat efficiency is improved; on the other hand, even if the flame of one of the ventilation grooves is blown out by wind, the flame can still be re-ignited. Therefore, compared with the traditional fire dividing cover, the combustion stability can be greatly improved, and the heat efficiency and the windproof performance are improved.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the utility model and, together with the description, serve to explain the utility model and not to limit the utility model.

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.

Fig. 1 is a schematic structural diagram of a furnace end according to an embodiment of the present invention;

fig. 2 is a schematic cross-sectional view of a burner according to an embodiment of the present invention;

fig. 3 is an exploded schematic view of a burner according to an embodiment of the present invention;

FIG. 4 is a schematic top view of the fire divider cover according to an embodiment of the present invention;

fig. 5 is a schematic view of a fire distribution cover according to an embodiment of the utility model.

Reference numerals:

10. a fire distributing cover; 11. a cover body; 111. a recess; 1111. a fire transfer hole; 1112. a convex hull; 112. a vent channel; 113. a middle part; 114. a peripheral portion; 115. an ignition hole; 116. a positioning part; 20. a bottom cover; 21. positioning holes; 22. an air inlet; 221. flanging; 30. an injection pipe; 31. a first end; 32. a second end; 40. a chamber.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein.

Referring to fig. 1 to 3, fig. 1 illustrates a schematic structural diagram of a furnace end according to an embodiment of the present invention, fig. 2 illustrates a schematic sectional structural diagram of the furnace end according to an embodiment of the present invention, and fig. 3 illustrates an exploded structural diagram of the furnace end according to an embodiment of the present invention. According to the fire distributing cover 10 provided by the embodiment of the utility model, the fire distributing cover 10 is used for being arranged on the bottom cover 20 of the burner, and the fire distributing cover 10 comprises a cover body 11. The top surface of the cap body 11 is provided with a concave portion 111 recessed toward the bottom cap 20. At least two vent grooves 112 are provided at intervals on the side wall of the recess 111 to penetrate through the two opposite surfaces of the cover body 11. At least two ventilation grooves 112 are spirally distributed on the sidewall of the recess 111 counterclockwise or clockwise. The side wall of the concave portion 111 and the bottom wall of the concave portion 111 are arranged at an included angle, an included angle formed by the side wall of the concave portion 111 and the bottom wall of the concave portion 111 is defined as a, and the included angle a is set to be greater than 90 °.

In the fire distribution cover 10, the concave part 111 is arranged on the top surface of the cover body 11, and the flame is positioned in the concave part 111 during combustion, so that the influence of external air flow on combustion flame in the concave part 111 can be effectively prevented, and the windproof effect is enhanced; the combined ventilation slot 112 is spirally arranged on the side wall of the concave part 111, on one hand, vortex type airflow can be formed in the concave part 111, so that inclined rotating flame can be realized, and meanwhile, gas and flame can be drawn towards the central axis (shown as L in fig. 2) of the cover body 11 through the side wall of the concave part 111, so that the flame is easily drawn, and the heat efficiency is improved; on the other hand, even if the flame of one of the air vent grooves 112 is blown out by wind, the flame can be re-ignited. Thus, compared with the traditional fire distribution cover 10, the combustion stability can be greatly improved, and the heat efficiency and the wind resistance can be improved.

Referring to fig. 2, in one embodiment, the top surface of the closure body 11 includes a central portion 113 and a peripheral portion 114 disposed circumferentially around the central portion 113. The middle portion 113 is recessed toward the bottom cover 20 to form a recess 111. The ends of the vent slots 112 extend to the bottom wall and/or peripheral region 114 of the recess 111.

In the present embodiment, specifically, one end of the vent groove 112 extends to the bottom wall of the recess 111, and the other end of the vent groove 112 extends to the peripheral portion 114. So, the length of air duct 112 is enough long, and the burning flame region that forms in air duct 112 department is enough big, can guarantee the thermal efficiency, and makes the pan of placing on this furnace end be heated more evenly.

Referring to fig. 1, fig. 2 and fig. 4, fig. 4 is a schematic top view of the fire distribution cover 10 according to an embodiment of the present invention, in which the vent groove 112 is a strip groove. A plane parallel to the top surface of the cap body 11 is defined as a reference plane, the vent groove 112 projects on the reference plane along a direction perpendicular to the top surface of the cap body 11, a projection point of the central axis of the cap body 11 on the reference plane is defined as O, a projection point of one end of the vent groove 112 away from the central axis of the cap body 11 on the reference plane is defined as a, a projection point of one end of the vent groove 112 close to the central axis of the cap body 11 on the reference plane is defined as B, a connection line of the point a and the point O is a first connection line, a connection line of the point a and the point B is a second connection line, the first connection line and the second connection line form an included angle B, and the included angle B is set to be 15 ° to 75 °, which facilitates formation of a swirling flame, enables the swirling flame to be formed, and enables the swirling flame to be stabilized.

Specifically, the angle b is set to 35 ° to 55 °, and as a specific example, the angle b is 45 °.

Referring to fig. 1, 2 and 4, in one embodiment, vent slots 112 are uniformly disposed on the top surface of closure body 11 about the central axis of closure body 11. Thus, the flame in the concave part 111 can be relatively uniform, the combustion stability can be greatly improved, and the heat efficiency and the wind resistance can be improved.

Referring to fig. 2, in one embodiment, the included angle a is 110 ° to 130 °. Specifically, a is 120 °.

Referring to fig. 1, 2 and 4, in one embodiment, a bottom wall of the recess 111 is provided with a fire hole 1111, and the fire hole 1111 is disposed in a region between two adjacent vent grooves 112. Specifically, the number of the fire transfer holes 1111 is plural, and one fire transfer hole 1111 is correspondingly disposed in a region between any two adjacent vent grooves 112. So, through the biography fire hole 1111 that sets up, can realize the mutual quick transmission of flame of two adjacent air channels 112, can improve windproof performance. In addition, since one end of the vent groove 112 in the present embodiment extends to the bottom wall of the recess 111, the efficiency of fire transfer is further improved.

Referring to fig. 1, 2 and 4, in one embodiment, the bottom wall of the recess 111 is provided with a convex hull 1112 protruding away from the bottom cover 20. Specifically, the outer surface of the convex hull 1112 is a semi-spherical surface, a semi-ellipsoidal surface. In this way, the convex protrusions 1112 can facilitate the flame to approach the center axis of the lid body 11 in the concave portions 111, and can improve the thermal efficiency.

It should be noted that the "convex hull 1112" may be a part of the "lid body 11", that is, the "convex hull 1112" and the other part of the "lid body 11" are integrally formed; the "convex hull 1112" may be manufactured separately and combined with the "other part of the cap body 11" as a whole. As shown in fig. 1 or fig. 2, in one embodiment, the "convex hull 1112" is a part of the "cover body 11" which is integrally formed.

Referring to fig. 1, in one embodiment, a top surface of the cap body 11 is provided with a firing hole 115, and the firing hole 115 is used to mount a firing pin (not shown).

Referring to fig. 1 to 3, in an embodiment, a burner includes the fire dividing cover 10 of any of the above embodiments, and further includes a bottom cover 20 and an injection pipe 30. The cap body 11 is mounted on the bottom cap 20 and encloses the bottom cap 20 to form a cavity 40, and the vent groove 112 is communicated with the cavity 40. The first end 31 of the injection pipe 30 is connected with the bottom cover 20 or the cover body 11, the internal passage of the injection pipe 30 is communicated with the cavity 40, and the second end 32 of the injection pipe 30 is used for introducing fuel gas.

In the burner, the concave part 111 is arranged on the top surface of the cover body 11, and the flame is positioned in the concave part 111 during combustion, so that the influence of external air flow on the combustion flame in the concave part 111 can be effectively prevented, and the windproof effect is enhanced; the combined ventilation groove 112 is spirally arranged on the side wall of the concave part 111, on one hand, vortex type airflow can be formed in the concave part 111, so that inclined rotating flame can be realized, and meanwhile, gas and flame can be drawn towards the central axis of the cover body 11 through the side wall of the concave part 111, thereby effectively leading the flame to be easily drawn together and improving the heat efficiency; on the other hand, even if the flame of one of the air vent grooves 112 is blown out by wind, the combustion can be reignited. Thus, compared with the traditional fire distribution cover 10, the combustion stability can be greatly improved, and the heat efficiency and the wind resistance can be improved.

Referring to fig. 2, 3 and 5, fig. 5 is a schematic view illustrating a perspective structure of the fire distribution cover 10 according to an embodiment of the utility model. In one embodiment, the cover body 11 is provided with at least one positioning portion 116, the bottom cover 20 is provided with a positioning hole 21 corresponding to the positioning portion 116, and the positioning portion 116 is inserted into the positioning hole 21. Specifically, the four positioning portions 116 are, for example, four, the positioning holes 21 are correspondingly four, and the four positioning portions 116 are respectively fitted into the four positioning holes 21, so that the lid body 11 can be stably mounted on the bottom lid 20.

It should be noted that the "positioning portion 116" may be a part of the "cover body 11", that is, the "positioning portion 116" and the other part of the "cover body 11" are integrally formed; the "positioning portion 116" may be manufactured separately from a separate member that is separable from the "other portion of the lid body 11" and may be combined with the "other portion of the lid body 11" as a single body. As shown in fig. 5, in one embodiment, the "positioning portion 116" is a part of the "cover body 11" that is integrally formed.

Referring to fig. 2, 3 and 5, further, the ignition hole 115 is disposed on one of the positioning portions 116, that is, the positioning portion 116 is disposed in a tubular structure, a pipeline of the tubular structure is used as the ignition hole 115, the ignition needle passes through the pipeline of the tubular structure from the lower side of the bottom cover 20, and a head portion of the ignition needle extends into the concave portion 111.

Referring to fig. 2, 3 and 5, in one embodiment, the bottom cover 20 is provided with an air inlet 22 corresponding to the first end 31 of the injection pipe 30, the air inlet 22 is provided with a flange 221, the first end 31 of the injection pipe 30 is inserted into the air inlet 22 and then communicated with the chamber 40, and the flange 221 is detachably connected with the air inlet 22 through at least one fastener (not shown). Fasteners include, but are not limited to, screws, pins, rivets, bolts, and the like.

In one embodiment, a gas stove comprises the fire distribution cover 10 of any one of the above embodiments.

In the gas stove, the concave part 111 is arranged on the top surface of the cover body 11, and the flame is positioned in the concave part 111 during combustion, so that the influence of external air flow on the combustion flame in the concave part 111 can be effectively prevented, and the windproof effect is enhanced; the combined ventilation groove 112 is spirally arranged on the side wall of the concave part 111, on one hand, vortex type airflow can be formed in the concave part 111, so that inclined rotating flame can be realized, and meanwhile, gas and flame can be drawn close to the central axis of the cover body 11 through the side wall of the concave part 111, so that the flame is effectively easy to gather, and the heat efficiency is improved; on the other hand, even if the flame of one of the air vent grooves 112 is blown out by wind, the combustion can be reignited. Thus, compared with the traditional fire distribution cover 10, the combustion stability can be greatly improved, and the heat efficiency and the wind resistance can be improved.

It should be noted that while one of the elements described herein is connected to another element and one of the elements is attached to another element, it is understood that the two elements may be connected by fasteners such as bolts, screws, pins, rivets, etc., or may be fixedly connected by snapping, welding or integrally forming. Wherein, the integrated molding mode can adopt the processes of extrusion, casting, press fitting, injection molding and the like.

The technical features of the above embodiments can be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the above embodiments are not described, but should be considered as the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above examples only show some embodiments of the present invention, and the description thereof is more specific and detailed, but not to be construed as limiting the scope of the utility model. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.

In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the utility model and to simplify the description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the utility model.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present invention, unless otherwise explicitly stated or limited, the terms "mounted," "connected," "fixed," and the like are to be construed broadly, e.g., as being permanently connected, detachably connected, or integral; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the present invention, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may be directly contacting the second feature or the first and second features may be indirectly contacting each other through intervening media. Also, a first feature "on," "above," and "over" a second feature may be directly on or obliquely above the second feature, or simply mean that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. As used herein, the terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like are for purposes of illustration only and do not denote a single embodiment.

Claims (10)

1. The utility model provides a divide fire lid, its characterized in that, divide fire lid (10) to be used for installing on bottom (20) of furnace end, divide fire lid (10) to include:

the cover comprises a cover body (11), wherein a concave part (111) which is concavely arranged towards the bottom cover (20) is arranged on the top surface of the cover body (11), at least two vent grooves (112) which penetrate through two opposite surfaces of the cover body (11) are arranged on the side wall of the concave part (111) at intervals, and the at least two vent grooves (112) are spirally distributed on the side wall of the concave part (111) anticlockwise or clockwise; the side wall of the concave part (111) and the bottom wall of the concave part (111) form an included angle, the included angle formed by matching the side wall of the concave part (111) and the bottom wall of the concave part (111) is defined as a, and the included angle a is set to be larger than 90 degrees.

2. Fire distribution cover according to claim 1, characterized in that the top surface of the cover body (11) comprises a central portion (113) and a peripheral portion (114) arranged circumferentially around the central portion (113); the middle part (113) is concavely arranged towards the bottom cover (20) to form the concave part (111); the end of the venting groove (112) extends to the bottom wall of the recess (111) and/or to the peripheral region (114).

3. Fire distribution cover according to claim 1, characterized in that said venting grooves (112) are strip-shaped grooves; a plane parallel to the top surface of the cap body (11) is defined as a reference surface, the vent groove (112) projects on the reference surface along a direction perpendicular to the top surface of the cap body (11), a projection point of the central axis of the cap body (11) on the reference surface is defined as O, a projection point of one end of the vent groove (112) away from the central axis of the cap body (11) on the reference surface is defined as a, a projection point of one end of the vent groove (112) close to the central axis of the cap body (11) on the reference surface is defined as B, a connection line of the point a and the point O is a first connection line, a connection line of the point a and the point B is a second connection line, the first connection line and the second connection line form an included angle B, and the included angle B is set to be 15 ° to 75 °.

4. Fire distribution cover according to claim 1, characterized in that the venting grooves (112) are arranged evenly on the top surface of the cover body (11) around the central axis of the cover body (11).

5. Fire distribution cover according to claim 1, characterized in that said angle a is 110 ° to 130 °.

6. Fire distribution cover according to claim 1, characterized in that the bottom wall of the recess (111) is provided with fire transfer holes (1111), which fire transfer holes (1111) are arranged in the area between two adjacent venting grooves (112).

7. Fire distribution cover according to claim 1, characterized in that the bottom wall of the recess (111) is provided with a convex hull (1112) projecting away from the bottom cover (20); the outer surface of the convex hull (1112) is a semi-spherical surface or a semi-ellipsoid surface.

8. The fire distribution cover according to any one of claims 1 to 7, wherein a top surface of the cover body (11) is provided with a firing hole (115), and the firing hole (115) is used for installing a firing pin.

9. A burner, characterized in that it comprises a distributor cap (10) according to any one of claims 1 to 8, said burner further comprising a bottom cap (20) and an injection duct (30); the cover body (11) is arranged on the bottom cover (20) and encloses with the bottom cover (20) to form a cavity (40), and the vent groove (112) is communicated with the cavity (40); the first end (31) of the injection pipe (30) is connected with the bottom cover (20) or the cover body (11), the inner channel of the injection pipe (30) is communicated with the cavity (40), and the second end (32) of the injection pipe (30) is used for introducing fuel gas.

10. Gas burner characterized in that it comprises a fire distribution cover (10) according to any one of claims 1 to 8.

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