External fire cover, burner and integrated stove

Abstract

The present invention discloses an external fire cover, including a cover body arranged in a ring shape, the cover body including a bottom surface, an upper end surface and a central arc surface, the upper end surface is located above the central arc surface, and the bottom edge of the upper end surface coincides with the upper edge of the central arc surface; the angle between the upper end surface and the bottom surface is α, wherein 20°<α<40°; a plurality of bosses are arranged on the upper end surface, a first layer of fire outlets are arranged in the bosses, a second layer of fire outlets are arranged on the upper end surface, and a third layer of fire outlets are arranged on the central arc surface. The structure of the external fire cover of the present invention is high on the outside and low on the inside. Through the above structure, the flame is more concentrated during combustion, and the heat transfer is also more concentrated, which can increase the effective heat transfer area of ​​the flame in contact with the bottom of the pot to achieve the effect of energy gathering; at the same time, the flame on the external fire cover is arranged in layers, and the air is more fully supplemented.

Description

Technical Field

[0001] The invention relates to an integrated stove, in particular to a gas stove in the integrated stove. Background Art

[0002] At present, most of the external fire covers on integrated stoves are borrowed from the external fire covers on traditional gas stoves. Most stoves have an outer ring of fire on the outermost end of the external fire cover. The outer ring fire holes of the external fire cover will block the air from replenishing the inner ring fire holes during combustion, making the inner ring fire burn incompletely; secondly, the distance between the smoke stove and the stove on the integrated stove is shorter than that of the traditional smoke stove. When the integrated stove is working, the wind generated by the oil suction device will make the outer ring fire of the external fire cover become virtual and long, and the flame will burn to the outside of the bottom of the pot, resulting in the flame not being fully utilized, causing heat loss. Summary of the invention

[0003] The technical problem to be solved by the present invention is to provide an outer fire cover structure that overcomes the above-mentioned shortcomings.

[0004] The solution of the present invention to solve its technical problem is: an external fire cover, including a cover body arranged in a ring shape, the cover body including a bottom surface, an upper end surface and a central arc surface, the upper end surface is located above the central arc surface, and the bottom edge of the upper end surface coincides with the upper edge of the central arc surface; the angle between the upper end surface and the bottom surface is α, wherein 20°<α<40°; a plurality of bosses are provided on the upper end surface, a first layer of fire outlets are provided in the bosses, a second layer of fire outlets are provided on the upper end surface, and a third layer of fire outlets are provided on the central arc surface.

[0005] The beneficial effects of the present invention are as follows: the outer fire cover structure of the present invention is high on the outside and low on the inside, and the upper end surface is inclined to the horizontal to form an inward concave shape; a boss is provided on the upper end surface of the cover body, a first layer of fire outlets is provided on the boss, a second layer of fire outlets is provided on the upper end surface, and a third layer of fire outlets is provided on the central arc surface. Through the above structure, the flame is more concentrated during combustion, and the heat transfer is also more concentrated, which can increase the effective heat transfer area of ​​the flame in contact with the bottom of the pot to achieve the effect of energy gathering; at the same time, the flame on the outer fire cover is arranged in layers, which can avoid the phenomenon of continuous flames during combustion, so that during combustion, the air can smoothly enter the interior of the outer fire cover due to the lack of obstruction of the outer ring fire, and the air replenishment is more sufficient.

[0006] As a further improvement of the above technical solution, the cross section of the first layer of fire outlets is oblate, and the angle between the opening direction of the first layer of fire outlets and the upper end surface is β1, wherein 30°<β1<80°. With the above structure, the influence of wind on the flame can be reduced, the flame can be prevented from being elongated by wind, and the combustion stability can be maintained.

[0007] As a further improvement of the above technical solution, the angle between the opening direction of the second layer of fire outlet and the upper end surface is β2, wherein 30°<β2<80°.

[0008] As a further improvement of the above technical solution, the number of the first layer of fire outlets is the same as the number of the second layer of fire outlets, and a second layer of fire outlets is provided between every two adjacent first layer of fire outlets.

[0009] As a further improvement of the above technical solution, all the bosses are evenly distributed on the upper end surface, and all the second-layer fire outlets are evenly distributed on the upper end surface.

[0010] As a further improvement of the above technical solution, the cross-section of the third layer of fire outlets is circular, there are multiple third layer of fire outlets, and the multiple third layer of fire outlets are evenly distributed on the central arc surface.

[0011] As a further improvement of the above technical solution, the central arc surface includes an air supply groove, and the air supply groove is located below the third layer of the fire outlet. Through the above structure, the air supply of the outer fire cover can be improved, the combustion is more complete, and the combustion efficiency is improved.

[0012] The present invention also provides a burner for a gas stove, the burner comprising a burner head and the above-mentioned outer fire cover, the burner head having an outer gas combustion chamber, the outer fire cover being connected to the outer gas combustion chamber. The outer fire cover of the above-mentioned embodiment is used, and at least the beneficial effects of the above-mentioned outer fire cover are obtained.

[0013] The present invention also provides an integrated stove using the burner. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly describes the drawings required for use in the description of the embodiments. Obviously, the drawings described are only part of the embodiments of the present invention, not all of the embodiments, and those skilled in the art can also obtain other design solutions and drawings based on these drawings without creative work.

[0015] Figure 1 It is a three-dimensional schematic diagram of the outer fire cover of the present invention;

[0016] Figure 2 is a front cross-sectional view of an outer fire cover of the present invention;

[0017] Figure 3 It is a partial cross-sectional view of an outer fire cover of the present invention. DETAILED DESCRIPTION

[0018] The following will clearly and completely describe the concept, specific structure and technical effects of the present invention in combination with the embodiments and drawings, so as to fully understand the purpose, characteristics and effects of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, other embodiments obtained by technicians in this field without creative work are all within the scope of protection of the present invention. The preferred embodiments of the present invention are shown in the drawings. The purpose of the drawings is to supplement the description of the text part of the specification with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present invention, but it cannot be understood as a limitation on the scope of protection of the present invention.

[0019] In the description of the present invention, it should be understood that descriptions involving orientations, such as up, down, front, back, left, right, etc., and orientations or positional relationships indicated are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0020] In the description of the present invention, "several" means one or more, "more" means more than two, "greater than", "less than", "exceed" etc. are understood as not including the number itself, and "above", "below", "within" etc. are understood as including the number itself. If there is a description of "first" or "second", it is only used for the purpose of distinguishing the technical features, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0021] In the description of the present invention, unless otherwise clearly defined, the terms such as setting, installing, connecting, etc. should be understood in a broad sense, and the technical personnel in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention in combination with the specific content of the technical solution. At the same time, the various technical features in the invention can be combined interchangeably without conflicting with each other.

[0022] Reference Figure 1 to Figure 3 , an external fire cover, comprising a cover body 1 arranged in a ring shape, the cover body 1 comprising a bottom surface 11, an upper end surface 12 and a central arc surface 13, the upper end surface 12 is located above the central arc surface 13, and the bottom edge of the upper end surface 12 coincides with the upper edge of the central arc surface 13; the angle between the upper end surface 12 and the bottom surface 11 is α, wherein 20°<α<40°; a plurality of bosses 2 are provided on the upper end surface 12, a first layer of fire outlets 31 are provided in the bosses 2, a second layer of fire outlets 32 are provided on the upper end surface 12, and a third layer of fire outlets 33 are provided on the central arc surface 13.

[0023] As a further preferred embodiment, the cross section of the first layer of fire outlets 31 is oblate, and the angle between the opening direction of the first layer of fire outlets 31 and the upper end surface 12 is β1, wherein 30°<β1<80°. The angle between the opening direction of the second layer of fire outlets 32 and the upper end surface 12 is β2, wherein 30°<β2<80°. The opening direction of the fire outlet is also the angle of the flame. By cleverly designing the angle of the fire outlet according to actual practical conditions, a better energy focusing effect can be obtained.

[0024] As a further preferred embodiment, the number of the first layer of fire outlets 31 and the second layer of fire outlets 32 is the same, and a second layer of fire outlets 32 is provided between each two adjacent first layer of fire outlets 31. The first layer of fire outlets 31 and the second layer of fire outlets 32 are distributed in the upper end surface 12 in a staggered manner. Moreover, the phase angles of the two adjacent fire outlets are the same, so that the heat is more uniform during combustion.

[0025] As a further preferred embodiment, the cross section of the third layer of fire outlets 33 is circular, there are a plurality of the third layer of fire outlets 33 , and the plurality of the third layer of fire outlets 33 are evenly distributed on the central arc surface 13 .

[0026] As a further preferred embodiment, the central arc surface 13 includes an air supply groove 14 , and the air supply groove 14 is located below the third layer of fire outlets 33 .

[0027] During combustion, the gas forms three layers of flames on the outer fire cover. Since the heights of the three layers of flames are different, air replenishment can be effectively improved, combustion is more complete, and combustion efficiency is improved. At the same time, because the upper end surface 12 is inclined, and the first layer of fire outlets 31 and the second layer of fire outlets 32 are also inclined to the upper end surface 12, the influence of wind on the flame can be reduced during combustion, preventing the wind from stretching the flame, and maintaining combustion stability.

[0028] The present invention also provides a burner for a gas stove, the burner comprising a burner head and the above-mentioned external fire cover, the burner head having an external gas combustion chamber, and the external fire cover being communicated with the external gas combustion chamber.

[0029] The present invention also provides an integrated stove using the burner.

[0030] The preferred embodiments of the present invention are specifically described above, but the invention is not limited to the embodiments. Those skilled in the art may make various equivalent modifications or substitutions without violating the spirit of the invention. These equivalent modifications or substitutions are all included in the scope defined by the claims of this application.

Claims

1. An external fire cover, characterized in that: It comprises a cover body arranged in an annular shape, the cover body comprises a bottom surface, an upper end surface and a central arc surface, the upper end surface is located above the central arc surface, and the bottom edge of the upper end surface coincides with the upper edge of the central arc surface; the angle between the upper end surface and the bottom surface is α, wherein 20°<α<40°; a plurality of bosses are arranged on the upper end surface, a first layer of fire outlets are arranged in the bosses, a second layer of fire outlets are arranged on the upper end surface, and a third layer of fire outlets are arranged on the central arc surface; the cross-section of the first layer of fire outlets is oblate, the angle between the opening direction of the first layer of fire outlets and the upper end surface is β1, wherein 30°<β1<80°; the cross-section of the third layer of fire outlets is circular, there are a plurality of the third layer of fire outlets, and the plurality of the third layer of fire outlets are evenly distributed on the central arc surface.

2. The outer fire cover according to claim 1, characterized in that: The angle between the opening direction of the second layer of fire outlet and the upper end surface is β2, wherein 30°<β2<80°.

3. The outer fire cover according to claim 2, characterized in that: The number of the first layer of fire outlets is the same as that of the second layer of fire outlets, and a second layer of fire outlets is provided between every two adjacent first layer of fire outlets.

4. The outer fire cover according to claim 3, characterized in that: All the bosses are evenly distributed on the upper end surface, and all the second-layer fire outlets are evenly distributed on the upper end surface.

5. The outer fire cover according to claim 1, characterized in that: The central arc surface includes an air supply groove, and the air supply groove is located below the third layer of fire outlets.

6. A burner for a gas stove, characterized in that: The burner comprises a burner head and an outer fire cover as claimed in any one of claims 1 to 5, wherein the burner head has an outer gas combustion chamber, and the outer fire cover is in communication with the outer gas combustion chamber.

7. An integrated stove, characterized in that: Comprising the burner as claimed in claim 6.

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