A rotating fire cover

Abstract

The present invention discloses a rotating fire outer fire cover, wherein the bottom surface of the outer fire cover is provided with an annular air cavity, the top surface is provided with a plurality of fire grooves for forming a rotating fire at intervals along the circumferential direction, the outer side wall is provided with a plurality of fire holes, the fire holes and the fire grooves are respectively connected with the annular air cavity, wherein the inner upper end of the inner side wall of the annular air cavity and / or the inner end of any of the fire grooves close to the central axis is provided with a blocking structure, and the blocking structure covers the inner end of any of the fire grooves close to the central axis. The rotating fire outer fire cover of the present invention can prevent the combustion flame of the outer fire cover from deviating toward the inner fire cover of the stove when the length of the fire groove in the radial direction is too long, thereby robbing the air required for the combustion of the inner fire cover, which is beneficial to improving the overall combustion stability and sufficiency of the stove, and effectively solves the problem of excessive smoke from the stove caused by the long length of the fire groove.

Description

Technical Field

[0001] The invention relates to the technical field of stoves, and in particular to a rotary fire cover for stoves. Background Art

[0002] Since rotary fire heating is more preferred by consumers, rotary fire gas stoves occupy a large share on the market. However, when the groove of the rotary fire outer fire cover of a rotary fire gas stove is too long, the inner end of the groove will be too close to the inner fire cover of the gas stove. When the gas burns above the groove, it will interfere with the inner fire cover of the gas stove, causing the combustion smoke to fluctuate more greatly, which in turn causes the smoke of the gas stove to exceed the standard.

[0003] In order to reduce the influence of the excessively long groove of the rotary fire outer fire cover on the smoke of the gas stove, the present invention provides a rotary fire outer fire cover which can increase the combustion stability of the stove. Summary of the invention

[0004] The present invention aims to solve at least one of the problems existing in the prior art to a certain extent. To this end, the present invention proposes a rotary fire cover, which can effectively solve the problem of excessive smoke from stoves caused by a fire groove being too long.

[0005] According to the above-mentioned rotating fire outer fire cover, it is realized by the following technical solutions:

[0006] A rotary fire outer fire cover, wherein the bottom surface of the outer fire cover is provided with an upwardly recessed annular air cavity, and the top surface of the outer fire cover is provided with a plurality of fire grooves for forming a rotary fire at intervals in the circumferential direction, and the outer side wall of the outer fire cover is provided with a plurality of fire holes arranged at intervals in the circumferential direction, and the fire holes and the fire grooves are respectively connected with the annular air cavity, wherein a blocking structure is provided at the inner upper end of the inner side wall of the annular air cavity and / or the inner end of any of the fire grooves close to the central axis, and the blocking structure is extended from the inside to the outside along the length direction of the fire groove, and the blocking structure covers the inner end of any of the fire grooves close to the central axis.

[0007] In some embodiments, the blocking structure is an annular boss, which is circumferentially arranged along the inner upper end of the inner side wall of the annular air cavity, and the upper end surface of the annular boss covers the entire inner end of the lower end surface of the fire groove close to the central axis.

[0008] In some embodiments, the blocking structure is a plurality of protrusions having the same number as the fire grooves, and the plurality of protrusions are arranged at intervals along the circumferential direction at the inner upper end of the inner side wall of the annular air cavity corresponding to the position of the fire groove, and the upper end surface of each protrusion covers the inner end of the lower end surface of the fire groove close to the center axis.

[0009] In some embodiments, the blocking structure is a plurality of blocking parts having the same number as the fire grooves, and the blocking part is arranged at the inner end of each fire groove close to the central axis, and each blocking part closes the lower end of the corresponding fire groove close to the central axis in the vertical direction.

[0010] In some embodiments, the length L of each fire groove in the radial direction is 15 to 30 mm, and the distance between the outer end of the blocking structure away from the central axis and the central axis is not less than the sum of the maximum radius of the fire cover in the stove and 29.5 mm.

[0011] In some embodiments, the thickness of the top surface of the outer fire cover and the upper end surface of the annular air cavity in the vertical direction is 1.8-2.5 mm, the thickness of the fire groove in the vertical direction is 3-5 mm, and the thickness of the blocking structure in the vertical direction is not less than 2 mm.

[0012] In some embodiments, all of the fire grooves are arranged to be inclined from the outside to the inside and in a clockwise or counterclockwise direction, the inclination angle of each of the fire grooves is greater than 0° and less than or equal to 70°, and the outer end of each of the fire grooves away from the central axis passes through the outer wall of the outer fire cover.

[0013] In some embodiments, the top surface of the outer fire cover includes a plurality of low planes and high planes arranged at intervals, and the fire grooves are respectively provided on the low planes and the high planes, and the fire grooves located on the low planes and / or the high planes are connected to the fire holes located below the outer ends of the fire grooves.

[0014] In some embodiments, a plurality of flame stabilizing holes connected to the annular air cavity are provided circumferentially on the outer side wall of the annular air cavity, and a flame stabilizing ring recessed toward the central axis is provided on the outer side surface of the outer side wall of the annular air cavity, wherein the flame stabilizing ring is located below the fire hole and connected to all the flame stabilizing holes.

[0015] In some embodiments, a fire transfer hole communicating with the annular air cavity is provided on the inner side wall of the outer fire cover, and the fire transfer hole is used for transferring fire from the inner fire cover of the stove toward the outer fire cover.

[0016] Compared with the prior art, the present invention includes at least the following beneficial effects: the rotating fire outer fire cover of the present invention arranges a blocking structure at the inner upper end of the inner wall of the annular air cavity and / or the inner end of any fire groove close to the central axis, thereby avoiding the situation where, when the length of the fire groove in the radial direction is too long, the burning flame of the outer fire cover is too biased toward the inner fire cover of the stove and robs the air required for the combustion of the inner fire cover, thereby improving the overall combustion stability and sufficiency of the stove and effectively solving the problem of excessive smoke from the stove due to the long length of the fire groove. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1is a cross-sectional view of the rotary fire outer fire cover in Example 1 of the present invention;

[0018] Figure 2 yes Figure 1 A partial enlarged view of part A;

[0019] Figure 3 yes Figure 1 A partial enlarged view of part B;

[0020] Figure 4 It is a bottom view of the rotary fire outer fire cover in embodiment 1 of the present invention;

[0021] Figure 5 It is a top view of the rotary fire outer fire cover in Example 1 of the present invention. DETAILED DESCRIPTION

[0022] The following examples illustrate the present invention, but the present invention is not limited to these examples. Modifications to the specific embodiments of the present invention or equivalent replacement of some technical features without departing from the spirit of the present invention should be included in the scope of the technical solution claimed by the present invention.

[0023] Example 1

[0024] like Figure 1-3 As shown, a rotating fire outer fire cover, the bottom surface of the outer fire cover 1 is provided with an upwardly concave annular air cavity 11, and the top surface of the outer fire cover 1 is provided with a plurality of fire grooves 12 for forming a rotating fire at intervals along the circumferential direction, and the upper and lower ends of each fire groove 12 respectively penetrate the top surface of the outer fire cover 1 and the upper end surface of the annular air cavity 11, so as to ensure that each fire groove 12 is connected with the annular air cavity 11, and part of the gas in the annular air cavity 11 is ejected from the fire groove 12 and burns above the fire groove 12. A plurality of fire holes 13 are arranged at intervals along the circumferential direction on the outer side wall of the outer fire cover 1, and the plurality of fire holes 13 are respectively connected with the annular air cavity 11, so that part of the gas entering the annular air cavity 11 is ejected from the fire hole 13 and burns above the gas outlet end of the fire hole 13. In addition, a blocking structure 14 is provided at the inner upper end of the inner wall of the annular air cavity 11 and / or the inner end of any fire groove 12 close to the central axis. The blocking structure 14 is extended from the inside to the outside along the length direction of the fire groove 12, and the blocking structure 14 covers the inner end of any fire groove 12 close to the central axis, so that part of the gas in the annular air cavity 11 can only be ejected vertically upward from the gap between the outer end of the blocking structure 14 away from the central axis and the outer wall of the annular air cavity 11, and burn above the fire groove 12.

[0025] The rotating fire outer fire cover of the present embodiment is provided with a blocking structure 14 at the inner upper end of the inner side wall of the annular air cavity 11 and / or the inner end of any fire groove 12 close to the central axis. The blocking structure 14 covers the inner end of any fire groove 12 close to the central axis, thereby preventing the burning flame of the outer fire cover 1 from being too biased toward the inner fire cover of the stove when the length of the fire groove 12 in the radial direction is too long, thereby robbing the inner fire cover of the air required for the combustion of the inner fire cover, thereby improving the overall combustion stability and sufficiency of the stove, and effectively solving the problem of excessive smoke from the stove due to the long length of the fire groove 12.

[0026] like Figure 2 and Figure 4 As shown, preferably, the blocking structure 14 of this embodiment is a plurality of protrusions 141, the number of which is the same as the number of fire grooves 12, and the plurality of protrusions 141 are arranged side by side and spaced along the circumferential direction at the position of the inner upper end of the inner side wall of the annular air cavity 11 corresponding to the fire groove 12, and the upper end surface of each protrusion 141 covers the inner end of the lower end surface of the corresponding fire groove 12 close to the central axis. Thus, by closing the inner end of the lower end surface of each fire groove 12 close to the central axis, part of the gas in the annular air cavity 11 can only be ejected vertically upward from the gap between the outer end of the protrusion 141 away from the central axis and the outer side wall of the annular air cavity 11, and burn above the fire groove 12, effectively preventing the combustion flame of the outer fire cover 1 from deviating from the inner fire cover of the stove, ensuring that the fire groove 12 will not rob the air required for the combustion of the inner fire cover of the stove when the length is too long, thereby improving the overall combustion stability of the stove and ensuring that the smoke generated by the stove combustion meets the standards.

[0027] like Figure 2 and Figure 5 As shown, preferably, the length L of each fire groove 12 in the radial direction is 15 to 30 mm. By controlling the length of each fire groove 12, the overall appearance of the outer fire cover 1 is more beautiful. The distance between the outer end of the blocking structure 14 away from the central axis and the central axis is not less than the sum of the maximum radius of the inner fire cover of the stove and 29.5 mm. In this way, by controlling the radial distance between the outer end of the blocking structure 14 and the inner fire cover of the stove, it is ensured that when the length L of the fire groove 12 is too long and deviates toward the inner fire cover of the stove, the gas will not interfere with the combustion of the inner fire cover of the stove when it is ejected upward from the fire groove 13, thereby improving the combustion stability of the stove and ensuring that the smoke of the stove combustion meets the standard.

[0028] Preferably, the thickness of the top surface of the outer fire cover 1 and the upper end surface of the annular air cavity 11 in the vertical direction is 1.8-2.5 mm, and the thickness of the fire groove 12 in the vertical direction is 3-5 mm, so as to ensure that the fire groove 12 is connected with the annular air cavity 11, so that part of the gas in the annular air cavity 11 is ejected upward from the fire groove 12 to form a swirl fire when burning. More preferably, the thickness of the blocking structure 14 (i.e., the protrusion 141) in the vertical direction is not less than 2 mm, so that the protrusion 141 has a sufficient strength to prevent the protrusion 141 from being deformed when part of the gas in the annular air cavity 11 is ejected upward at high speed through the fire groove 12, thereby ensuring the blocking effect of the protrusion 141 and the combustion stability of the stove.

[0029] Preferably, all the fire grooves 12 are arranged from the outside to the inside and tilted in a clockwise or counterclockwise direction. The inclination angle of each fire groove 12 is greater than 0° and less than or equal to 70°, and the outer end of each fire groove 12 away from the central axis passes through the outer wall of the outer fire cover 1. This ensures that the outer fire cover 1 can produce an obvious rotating fire effect and improve the combustion and heating effect.

[0030] like Figure 1 and Figure 3 As shown, specifically, the top surface of the outer fire cover 1 includes a plurality of low planes 101 and high planes 102 arranged at intervals along the circumferential direction, and fire grooves 12 are respectively provided on the low planes 101 and the high planes 102. Thus, by providing the low planes 101 and the high planes 102, and providing the fire grooves 12 on the low planes 101 and the high planes 102, it is beneficial to improve the aesthetic appearance of the outer fire cover 1, and the low plane 101 can increase the air volume and smoke exhaust space, so that the combustion of the outer fire cover 1 is more complete, and the high plane 102 shortens the distance between the burning flame and the bottom of the pot, which is beneficial to improve the heating effect. In addition, the fire grooves 12 located on the low plane 101 or / and the high plane 102 are connected to the fire holes 13 located below the outer ends of the fire grooves 12 to improve the fire transfer effect between the fire grooves 12 and the fire holes 13.

[0031] In this embodiment, the fire groove 12 located on the low plane 101 is connected to the fire hole 13 located below the outer end of the fire groove 12, and the fire groove 12 located on the high plane 102 is not connected to the fire hole 13 located below the outer end of the fire groove 12.

[0032] like Figure 2-3 As shown, more specifically, a plurality of flame stabilizing holes 15 connected to the annular air cavity 11 are provided in the circumferential direction of the outer wall of the annular air cavity 11, and a flame stabilizing ring 16 is provided on the outer side of the outer wall of the annular air cavity 11, which is recessed toward the central axis. The flame stabilizing ring 16 is located below the fire hole 13 and is connected to all the flame stabilizing holes 15. Thus, by adding the flame stabilizing ring 16 below the fire hole 13, and the flame stabilizing ring 16 is connected to the annular air cavity 11 through a plurality of flame stabilizing holes 15, the combustion flame stability and heating effect of the outer fire cover 1 are improved.

[0033] In addition, a fire transfer hole 17 connected to the annular air cavity 11 is provided on the inner wall of the outer fire cover 1. The fire transfer hole 17 is used to transfer fire from the inner fire cover of the stove to the outer fire cover 1. When the stove is adjusted from a low fire to a high fire, the inner fire cover of the stove can ignite the gas of the outer fire cover 1 through the fire transfer hole 17, thereby realizing reliable fire transfer between the inner fire cover and the outer fire cover 1 of the stove.

[0034] Example 2

[0035] The difference between this embodiment and embodiment 1 is that the structure of the blocking structure 14 is different. Specifically, the blocking structure 14 is an annular boss, which is arranged circumferentially along the inner upper end of the inner side wall of the annular air cavity 11, and the upper end surface of the annular boss covers the inner end of the lower end surface of the entire fire groove 12 close to the central axis.

[0036] It can be seen that by designing the blocking structure 14 as an annular boss that can cover the entire lower end surface of the fire groove 12 close to the inner end of the central axis, not only the strength of the blocking structure 14 is increased, but it is also helpful to simplify the structure of the blocking structure 14 and facilitate rapid processing and forming.

[0037] Example 3

[0038] The difference between this embodiment and the first embodiment is that the structure and the setting position of the blocking structure 14 are different. Specifically, the blocking structure 14 is a plurality of blocking parts of the same number as the fire grooves 12, and a blocking part is provided at the inner end of each fire groove 12 close to the central axis, and each blocking part closes the lower end of the inner end of the corresponding fire groove 12 close to the central axis in the vertical direction. In this embodiment, the blocking part is integrally formed with the lower end of the inner end of the fire groove 12 close to the central axis in the vertical direction, that is, when the fire groove 12 is cut in the vertical direction, the cutting depth of the inner end of the fire groove 12 close to the central axis is less than the cutting depth of the outer end of the fire groove 12, and the inner end of the fire groove 12 close to the central axis is not connected to the inner side of the upper end surface of the annular air cavity 11.

[0039] Therefore, by setting a blocking structure 14 integrally formed with the fire groove 12 in each fire groove 12 and by controlling the cutting depth of the fire groove 12 near the inner end of the central axis, it can be ensured that the combustion flame of the outer fire cover and the combustion of the inner fire cover will not interfere with each other, while also helping to reduce manufacturing materials.

[0040] The above are only some embodiments of the present invention. For those skilled in the art, several modifications and improvements can be made without departing from the creative concept of the present invention, which all belong to the protection scope of the present invention.

Claims

1. A rotary fire outer fire cover, wherein the bottom surface of the outer fire cover (1) is provided with an upwardly concave annular air cavity (11), and the top surface of the outer fire cover (1) is provided with a plurality of fire grooves (12) for forming a rotary fire at intervals in the circumferential direction, and the outer side wall of the outer fire cover (1) is provided with a plurality of fire holes (13) arranged at intervals in the circumferential direction, and the fire holes (13) and the fire grooves (12) are respectively connected to the annular air cavity (11), characterized in that: A blocking structure (14) is provided at the inner upper end of the inner side wall of the annular air cavity (11), and the blocking structure (14) is arranged to extend from the inside to the outside along the length direction of the fire groove (12), and the blocking structure (14) covers the inner end of any fire groove (12) close to the central axis; The outer end of each fire groove (12) away from the central axis passes through the outer side wall of the outer fire cover (1), and the thickness of the blocking structure (14) in the vertical direction is not less than 2 mm; The blocking structure (14) is an annular boss, which is arranged circumferentially along the inner upper end of the inner side wall of the annular air cavity (11), and the upper end surface of the annular boss covers the inner end of the lower end surface of the entire fire groove (12) close to the central axis.

2. A rotary fire outer fire cover, wherein the bottom surface of the outer fire cover (1) is provided with an upwardly concave annular air cavity (11), and the top surface of the outer fire cover (1) is provided with a plurality of fire grooves (12) for forming a rotary fire at intervals in the circumferential direction, and the outer side wall of the outer fire cover (1) is provided with a plurality of fire holes (13) arranged at intervals in the circumferential direction, and the fire holes (13) and the fire grooves (12) are respectively connected to the annular air cavity (11), characterized in that: A blocking structure (14) is provided at the inner upper end of the inner side wall of the annular air cavity (11), and the blocking structure (14) is arranged to extend from the inside to the outside along the length direction of the fire groove (12), and the blocking structure (14) covers the inner end of any fire groove (12) close to the central axis; The outer end of each fire groove (12) away from the central axis passes through the outer side wall of the outer fire cover (1), and the thickness of the blocking structure (14) in the vertical direction is not less than 2 mm; The blocking structure (14) is a plurality of protrusions (141) having the same number as the fire groove (12); the plurality of protrusions (141) are arranged at intervals along the circumferential direction at positions corresponding to the fire groove (12) at the inner upper end of the inner side wall of the annular air cavity (11); and the upper end surface of each protrusion (141) covers the inner end of the lower end surface of the corresponding fire groove (12) close to the central axis.

3. A rotary fire outer fire cover, wherein the bottom surface of the outer fire cover (1) is provided with an upwardly concave annular air cavity (11), and the top surface of the outer fire cover (1) is provided with a plurality of fire grooves (12) for forming a rotary fire at intervals in the circumferential direction, and the outer side wall of the outer fire cover (1) is provided with a plurality of fire holes (13) arranged at intervals in the circumferential direction, and the fire holes (13) and the fire grooves (12) are respectively connected to the annular air cavity (11), characterized in that: A blocking structure (14) is provided at the inner end of any of the fire grooves (12) close to the central axis, and the blocking structure (14) is arranged to extend from the inside to the outside along the length direction of the fire groove (12), and the blocking structure (14) covers the inner end of any of the fire grooves (12) close to the central axis; The blocking structure (14) is a plurality of blocking parts having the same number as the fire grooves (12), and the blocking part is arranged at the inner end of each fire groove (12) close to the central axis, and each blocking part closes the lower end of the corresponding fire groove (12) close to the inner end of the central axis in the vertical direction; When the fire groove (12) is cut in the vertical direction, the cutting depth of the inner end of the fire groove (12) close to the central axis is smaller than the cutting depth of the outer end of the fire groove (12), and the inner end of the fire groove (12) close to the central axis is not connected to the inner side of the upper end surface of the annular air cavity (11).

4. A rotary fire cover according to any one of claims 1 to 3, characterized in that: The length L of each fire groove (12) in the radial direction is 15 to 30 mm, and the distance between the outer end of the blocking structure (14) away from the central axis and the central axis is not less than the sum of the maximum radius of the fire cover in the stove and 29.5 mm.

5. A rotary fire cover according to claim 4, characterized in that: The thickness of the top surface of the outer fire cover (1) and the upper end surface of the annular air cavity (11) in the vertical direction is 1.8 to 2.5 mm, and the thickness of the fire groove (12) in the vertical direction is 3 to 5 mm.

6. A rotary fire cover according to claim 4, characterized in that: All of the fire grooves (12) are arranged to be inclined from the outside to the inside and in a clockwise or counterclockwise direction, and the inclination angle of each of the fire grooves (12) is greater than 0° and less than or equal to 70°.

7. A rotary fire cover according to claim 6, characterized in that: The top surface of the outer fire cover (1) comprises a plurality of low planes (101) and high planes (102) arranged at intervals, and the fire grooves (12) are respectively provided on the low planes (101) and the high planes (102), and the fire grooves (12) located on the low planes (101) and / or the high planes (102) are communicated with the fire holes (13) located below the outer ends of the fire grooves (12).

8. A rotary fire cover according to any one of claims 1 to 3, characterized in that: A plurality of flame stabilizing holes (15) connected to the annular air cavity (11) are arranged on the circumference of the outer wall of the annular air cavity (11), and a flame stabilizing ring (16) recessed toward the central axis is arranged on the outer side surface of the outer wall of the annular air cavity (11), wherein the flame stabilizing ring (16) is located below the fire hole (13) and is connected to all the flame stabilizing holes (15).

9. A rotary fire cover according to any one of claims 1 to 3, characterized in that: A fire transfer hole (17) communicating with the annular air cavity (11) is provided on the inner side wall of the outer fire cover (1), and the fire transfer hole (17) is used to transfer fire from the inner fire cover of the stove toward the outer fire cover (1).

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