CN112013392A

CN112013392A - Burner fire cover for gas stove

Info

Publication number: CN112013392A
Application number: CN201910468035.0A
Authority: CN
Inventors: 张帅; 程永超; 郑军妹
Original assignee: Ningbo Fotile Kitchen Ware Co Ltd
Current assignee: Ningbo Fotile Kitchen Ware Co Ltd
Priority date: 2019-05-31
Filing date: 2019-05-31
Publication date: 2020-12-01
Anticipated expiration: 2039-05-31
Also published as: CN112013392B

Abstract

The invention relates to a burner fire cover for a gas stove, which comprises a fire cover body, wherein a gas mixing cavity is formed between an annular top wall of the fire cover body and an inner ring wall and an outer ring wall which vertically or obliquely extend downwards from the inner side edge and the outer side edge of the annular top wall, and the outer ring wall is provided with first main fire holes communicated with the gas mixing cavity at intervals along the circumferential direction, and the burner fire cover is characterized in that: in the direction from top to bottom, the outer ring wall is provided with a guide slope which gradually inclines upwards and outwards at the lower part of the fire outlet end adjacent to the first main fire hole.

Description

Burner fire cover for gas stove

Technical Field

The invention relates to the field of household kitchenware, in particular to a burner fire cover for a gas stove.

Background

At present, the fire lid of gas-cooker usually comprises roof, annular inside wall and annular lateral wall, and it has a plurality of main fire hole to open along its circumferencial direction on the annular lateral wall of fire lid, and only including the single row fire hole on the annular lateral wall of current gas-cooker fire lid, this type of patent document can refer to the chinese utility model patent of patent number ZL200520014838.2 for a gas-cooker combustor toper fire lid (grant No. CN2842216Y), can also refer to chinese utility model patent of patent number ZL201120246965.0 for a combustor fire lid (grant No. CN 202149492U). The single main fire hole combustion mode disclosed above has the disadvantages that the flame is easy to jump after combustion, the combustion area is unstable, meanwhile, the single row of fire holes not only causes low combustion heat efficiency of the gas stove, but also causes insufficient combustion of the gas, which leads to emission of carbon monoxide gas, and aggravates environmental pollution, for this reason, the Chinese utility model patent No. ZL 21153770, namely 'A gas stove fire cover assembly' (No. CN206191590U), discloses a gas stove fire cover assembly, which comprises a base and a cover body matched with the base, a plurality of inner fire holes are arranged on the inner side wall of the cover body along the peripheral direction, and double rows of outer fire holes are arranged on the outer side wall of the cover body along the peripheral direction, the double rows of outer fire holes comprise a plurality of first outer fire holes positioned in a first row and a plurality of second outer fire holes positioned in a second row, the first outer fire holes and the second outer fire holes are staggered, and by arranging the double rows of outer fire holes on the outer side wall, and first outer fire hole and the crisscross setting of second outer fire hole, the setting of double fire hole has improved the combustion efficiency of gas-cooker effectively, but the periphery fire diameter that this double fire hole formed is the same with the scope of heating the pan the same, and for this reason should have the fire lid of double fire hole and heat the homogeneity of pan relatively poor.

In addition, the fire cover of the burner is additionally provided with a waterproof brim above the fire hole in order to prevent the fire hole from being blocked by the spilled liquid, and the structure of the waterproof brim can refer to the Chinese utility model patent with patent number ZL201820760029.3 (No. CN208804674U) of the applicant, including the fire cover, the main fire hole is arranged on the outer side surface of the fire cover along the circumferential interval distribution, the outer edge of the fire cover extends outwards to form a first waterproof brim above the main fire hole, although the first waterproof brim can block the blockage of the spilled liquid to the main fire hole, the first waterproof brim can also press the flame formed by the main fire hole, thereby influencing the overall combustion thermal efficiency of the main fire hole.

Disclosure of Invention

The first technical problem to be solved by the present invention is to provide a burner fire cover for a gas stove, which can uniformly heat a pan bottom, in view of the above-mentioned prior art.

A second technical problem to be solved by the present invention is to provide a burner fire cover for a gas range, which has a liquid-proof function and in which flames formed by fire holes are not easily compressed.

The third technical problem to be solved by the present invention is to provide a burner fire cover for a gas stove, which can effectively supplement secondary air and fully burn, in view of the above-mentioned current state of the art.

In order to solve the first technical problem, the technical scheme adopted by the invention is as follows: the burner fire cover for the gas stove comprises a fire cover body, wherein a gas mixing cavity is formed between an annular top wall of the fire cover body and an inner annular wall and an outer annular wall which vertically or obliquely extend downwards from the inner edge and the outer edge of the annular top wall, and the outer annular wall is provided with first main fire holes communicated with the gas mixing cavity at intervals along the circumferential direction, and the burner fire cover is characterized in that: in the direction from top to bottom, the outer ring wall has a guide slope gradually inclining upwards and outwards at the lower part of the fire outlet end adjacent to the first main fire hole.

Furthermore, the first main fire hole is obliquely and downwards arranged from an air inlet end communicated with the air mixing cavity to a fire outlet end positioned on the outer ring wall. The design of first main fire hole can avoid the overflow to get into first main fire hole and cause the jam on the one hand, and the flame that this first main fire hole formed on the other hand can upwards and outwards extend along the guidance slope to the realization guidance slope has the effect of going out the fire diameter that becomes flame with first main fire hole and enlarges outward.

The in-process that the flame that the realization was formed with the fire outlet end of first main fire hole outwards extends from bottom to top at the guide slope, can also promote the abundant burning in first main fire hole, the guide slope is equipped with at least two from inside to outside intervals and is used for to the first tonifying qi hole of the secondary air of fire outlet end supplementary of first main fire hole.

In order to realize that the burner fire cover can form flames with different fire diameters so as to heat the bottom of the pan more uniformly, preferably, at least two second main fire holes communicated with the gas mixing cavity are further arranged at intervals in every other one or more first main fire holes, and the second main fire holes are obliquely and upwards arranged from an inlet end communicated with the gas mixing cavity to an outlet end positioned on the outer ring wall.

In order to prevent the overflow liquid from blocking the second main fire hole, the outer edge of the annular top wall of the fire cover body extends outwards to form a waterproof brim which is shielded above the second main fire hole. Because waterproof eaves can also push down the flame that the main fire hole of second formed when blockking up the main fire hole of second as the overflow.

To solve the second technical problem, preferably, the method is characterized in that: the position that waterproof eaves corresponds first main fire hole has the breach. Because first main fire hole is the slope from the air inlet end with mixing the gas chamber intercommunication to the air outlet end that is located outer rampart and sets up downwards, as mentioned above, the influence of overflow to first main fire hole is less, from this, the setting of breach can avoid being pushed down by waterproof eaves because of the in-process that the slope realization of leading is with the flame that the fire outlet end of first main fire hole formed from bottom to top outwards extends.

Preferably, the first main fire hole is located further upward on the outer ring wall than the second main fire hole and is close to the notch. In order to avoid the phenomenon that the flame formed at the fire outlet end of the first main fire hole is still pressed by other parts of the waterproof eaves except the gap, the first main fire hole is arranged on the upper part, so that the phenomenon can be avoided.

In order to solve the third technical problem, preferably, a second air supplement hole for supplementing secondary air to the second main fire hole is formed in a position, corresponding to the second main fire hole, of the waterproof eaves. Because first main fire hole is more overhead than second main fire hole, then can form first main fire hole and "grab" the peripheral secondary air of rampart outside the fire lid body in the combustion process more easily and burn, and lie in the second main fire hole of putting down and then fail abundant burning because of being "snatched" of secondary air easily, for this reason, from the top to the bottom direction, the secondary air on the waterproof eaves can be because of the setting of second tonifying qi hole and supply second main fire hole independently downwards, and promote the abundant burning in second main fire hole. Of course, the second air supply hole may be provided in a downwardly extending tubular shape.

In order to prevent the second air supply hole from being blocked by the overflowing liquid, the periphery of the second air supply hole is provided with a peripheral edge part which is gradually downward and gradually outward inclined. The peripheral part can guide the overflowing liquid to the periphery of the second air supply hole to be discharged.

In order to accelerate the flame formed by the first main fire hole to extend outwards from bottom to top more quickly, the upper surface of the guide slope is provided with a local concave area, and the first gas supplementing hole is arranged on the local concave area.

In order to realize that the flame diameter formed by the first main fire hole is larger than that formed by the second main fire hole, the guide slope comprises an outer end far away from the fire outlet end of the first main fire hole, and the distance d1 between the peripheral edge part of the waterproof brim and the center of the fire cover body is smaller than the distance d2 between the outer end of the guide slope and the center of the fire cover body. Therefore, the flame formed by the first main fire hole and the flame formed by the second main fire hole can heat the pan bottom more uniformly.

Compared with the prior art, the fire cover has the advantages that the flame formed by the first main fire hole can extend upwards and outwards along the guide slope, so that the flame outlet diameter of the flame formed by the first main fire hole is outwards enlarged, the fire cover body can uniformly heat the pot bottom, and meanwhile, the whole fire cover is simple in structure and process, convenient to process and high in universality.

Drawings

FIG. 1 is a schematic view of the structure of a burner fire cover in embodiment 1 of the invention;

FIG. 2 is a cross-sectional view at an angle of FIG. 1;

FIG. 3 is a cross-sectional view at another angle from FIG. 1;

FIG. 4 is a top view of FIG. 1;

FIG. 5 is a schematic view of another angle of FIG. 1;

FIG. 6 is a schematic view showing the construction of a burner fire cover in embodiment 2 of the present invention.

Detailed Description

The invention is described in further detail below with reference to the accompanying examples.

Example 1

As shown in FIGS. 1 to 5, the preferred embodiment of the present invention is shown. The burner fire cover for the gas stove in the embodiment comprises a fire cover body 1, a gas mixing cavity 14 is formed between an annular top wall 11 of the fire cover body 1 and an inner ring wall 12 and an outer ring wall 13 which vertically or obliquely extend downwards from the inner edge and the outer edge of the annular top wall 11, the outer ring wall 13 is circumferentially provided with first main fire holes 131 communicated with the gas mixing cavity 14 at intervals, the outer ring wall 13 is provided with a guide slope 2 which gradually inclines upwards and outwards at the lower part position adjacent to a fire outlet end 1311 of the first main fire hole 131 in the direction from top to bottom, flames formed by the first main fire holes 131 can extend upwards and outwards along the guide slope 2, so that the guide slope 2 has the effect that the fire outlet diameter of the flames formed by the first main fire holes 131 is outwards expanded, and the fire cover body 1 can uniformly heat a pot bottom. Specifically, the first main fire hole 131 is disposed obliquely downward from the air inlet end 1312 communicated with the air mixing chamber 14 to the fire outlet end 1311 located on the outer annular wall 13, so that on one hand, the first main fire hole 131 can prevent overflowing liquid from entering the first main fire hole 131 to cause blockage, and on the other hand, the flame formed by the first main fire hole 131 can extend upward and outward along the guiding slope 2 to realize that the guiding slope 2 has the effect of expanding outward the fire outlet diameter of the flame formed by the first main fire hole 131, and in addition, the guiding slope 2 is provided with at least two first air replenishing holes at intervals from inside to outside for replenishing secondary air to the fire outlet end 1311 of the first main fire hole 131, so that the first air replenishing holes can promote sufficient combustion of the first main fire hole 131 in the process that the guiding slope 2 realizes that the flame formed by the fire outlet end 1311 of the first main fire hole 131 extends outward from bottom to top. In order to realize that the burner fire cover can form flames with different fire diameters so as to heat the bottom of the pan more uniformly, at least two second main fire holes 132 communicated with the air mixing chamber 14 are arranged at intervals on every other one or more first main fire holes 131, the second main fire holes 132 are arranged from the inlet end 1321 communicated with the air mixing chamber 14 to the outlet end 1322 positioned on the outer ring wall 13 in an inclined upward manner, and the flame diameter formed by the second main fire holes 132 can be smaller than that formed by the first main fire holes 131.

In order to prevent the second main fire hole 132 from being blocked by the overflowing liquid, the outer edge of the annular top wall 11 of the fire cover body 1 extends outwards to form a waterproof brim 111 covering the second main fire hole 132. Because the waterproof eaves 111 can also press the flame formed by the second main fire hole 132 when blocking the second main fire hole 132 as the spilled liquid, and in order to prevent the waterproof eaves 111 from also pressing the first main fire hole 131 to form the flame, the position of the waterproof eaves 111 corresponding to the first main fire hole 131 is provided with a notch 1111, because the first main fire hole 131 is obliquely arranged downwards from the air inlet end 1312 communicated with the air mixing cavity 14 to the air outlet end positioned on the outer annular wall 13, as described above, the influence of the spilled liquid on the first main fire hole 131 is small, and therefore, the notch 1111 is arranged to prevent the flame formed by the fire outlet end 1311 of the first main fire hole 131 from being pressed by the waterproof eaves 111 in the process of extending outwards from bottom to top due to the guiding slope 2. In addition, the first main fire hole 131 is located on the outer annular wall 13 and close to the notch 1111 more than the second main fire hole 132, so as to avoid the flame formed by the fire exit end 1311 of the first main fire hole 131 being pressed by the other portion of the waterproof brim 111 except the notch 1111. Meanwhile, the position of the waterproof eaves 111 corresponding to the second main fire hole 132 is further provided with a second air supply hole 1112 for supplying secondary air to the second main fire hole 132. Because the first main fire hole 131 is more upward than the second main fire hole 132, the first main fire hole 131 is more likely to "rob" the secondary air around the outer circumferential wall 13 of the fire cover body 1 to burn during the burning process, and the second main fire hole 132 positioned downward is likely to fail to burn fully due to the "rob" of the secondary air, therefore, in the direction from top to bottom, the secondary air above the waterproof eaves 111 can be independently supplied to the second main fire hole 132 downward due to the arrangement of the second air supply hole 1112, and the full burning of the second main fire hole 132 is promoted. In order to prevent the overflow liquid from blocking the second air supplement hole 1112, the waterproof brim 111 has a peripheral portion 1113 gradually inclining downwards and outwards at the periphery of the second air supplement hole 1112, and the peripheral portion 1113 can guide the overflow liquid to the periphery of the second air supplement hole 1112 for discharge. In order to accelerate the flame formed by the first main fire hole 131 to extend outwards from bottom to top, the upper surface of the guide slope 2 is provided with a local concave area 24, the first air supplement hole is arranged on the local concave area 24, in the embodiment, the first air supplement hole comprises a first air supplement hole 21, a second air supplement hole 22 and a third air supplement hole 23 which are arranged from inside to outside at intervals, the caliber of the first air supplement hole 21 is larger than that of the second air supplement hole 22, and the caliber of the second air supplement hole 22 is larger than that of the third air supplement hole 23, so that the caliber of the first air supplement hole 21 can supplement secondary air to the root of the first main fire hole 131 to a greater extent, and the combustion of the first main fire hole 131 is effectively promoted.

Finally, in order to realize that the flame diameter formed by the first main fire hole 131 is larger than the flame diameter formed by the second main fire hole 132, the guiding slope 2 comprises an outer end 25 far away from the fire outlet end 1311 of the first main fire hole 131, and the distance d1 between the peripheral edge part 1113 of the waterproof eaves 111 and the center of the fire cover body 1 is smaller than the distance d2 between the outer end 25 of the guiding slope 2 and the center of the fire cover body 1, so that the flame formed by the first main fire hole 131 and the flame formed by the second main fire hole 132 can heat the pot bottom more uniformly.

Example 2

The structure is basically the same as that of the embodiment 1, and the only difference is that: the first main fire holes 131 are disposed further downward on the outer annular wall 13 than the second main fire holes 132, and the second gas supply holes 1112 do not have a peripheral portion 1113 that is inclined gradually downward and outward, as shown in fig. 6.

Example 3

The structure is basically the same as that of the embodiment 1, and the only difference is that: the first main fire hole 131 and the second main fire hole 132 are disposed in the same circumferential direction on the outer annular wall 13, and the periphery of the second gas supplementing hole 1112 does not have a circumferential portion 1113 which is inclined gradually downward and outward.

Claims

1. A burner fire cover for a gas stove comprises a fire cover body (1), wherein a gas mixing cavity (14) is formed between an annular top wall (11) of the fire cover body (1) and an inner annular wall (12) and an outer annular wall (13) which vertically or obliquely extend downwards from the inner edge and the outer edge of the annular top wall (11), and the outer annular wall (13) is provided with first main fire holes (131) communicated with the gas mixing cavity (14) at intervals along the circumferential direction, and the burner fire cover is characterized in that: the outer annular wall (13) has a guide slope (2) inclined gradually upward and outward at a lower position adjacent to the fire outlet end (1311) of the first main fire hole (131) in a direction from top to bottom.

2. Burner fire cover for gas cookers according to claim 1, characterized in that: the first main fire hole (131) is arranged from an air inlet end (1312) communicated with the air mixing cavity (14) to a fire outlet end (1311) positioned on the outer ring wall (13) in an inclined downward mode.

3. Burner fire cover for gas cookers according to claim 2, characterized in that: the guide slope (2) is provided with at least two first air replenishing holes (21; 22; 23) at intervals from inside to outside for replenishing secondary air to a fire outlet end (1311) of the first main fire hole (131).

4. The burner fire cover for a gas range as set forth in any one of claims 1 to 3, wherein: at least two second main fire holes (132) communicated with the air mixing cavity (14) are further arranged at intervals on every other one or more first main fire holes (131), and the second main fire holes (132) are obliquely and upwards arranged from an inlet end (1321) communicated with the air mixing cavity (14) to an outlet end (1322) positioned on the outer ring wall (13).

5. Burner fire cover for gas cookers according to claim 4, characterized in that: the outer edge of the annular top wall (11) of the fire cover body (1) extends outwards to form a waterproof brim (111) which is shielded above the second main fire hole (132).

6. Burner fire cover for gas cookers according to claim 5, characterized in that: the position of the waterproof eaves (111) corresponding to the first main fire hole (131) is provided with a notch (1111).

7. Burner fire cover for gas cookers according to claim 6, characterized in that: the first main fire hole (131) is located further upward on the outer annular wall (13) than the second main fire hole (132) and is adjacent to the notch (1111).

8. The burner fire cover for a gas range as set forth in any one of claims 5 to 7, wherein: and a second air supplement hole (1112) for supplementing secondary air to the second main fire hole (132) is formed in the position, corresponding to the second main fire hole (132), of the waterproof eaves (111).

9. Burner fire cover for gas cookers according to claim 8, characterized in that: the periphery of the waterproof eaves (111) in the second air supplementing hole (1112) is provided with a peripheral edge portion (1113) which gradually inclines downwards and outwards.

10. Burner fire cover for gas cookers according to claim 9, characterized in that: the upper surface of the guide slope (2) is provided with a local concave area (24), and the first air supplement holes (21; 22; 23) are arranged on the local concave area (24).

11. Burner fire cover for gas cookers according to claim 10, characterized in that: the guiding slope (2) comprises an outer end (25) far away from a fire outlet end (1311) of the first main fire hole (131), and the distance d1 between the peripheral edge portion (1113) of the waterproof eaves (111) and the center of the fire cover body (1) is smaller than the distance d2 between the outer end (25) of the guiding slope (2) and the center of the fire cover body (1).