CN213777719U

CN213777719U - Fire cover for gas stove

Info

Publication number: CN213777719U
Application number: CN202022037245.5U
Authority: CN
Inventors: 史丽莎
Original assignee: Ningbo Fotile Kitchen Ware Co Ltd
Current assignee: Ningbo Fotile Kitchen Ware Co Ltd
Priority date: 2020-09-16
Filing date: 2020-09-16
Publication date: 2021-07-23
Anticipated expiration: 2030-09-16

Abstract

The utility model relates to a fire lid for gas-cooker, including annular body, form gas mixing chamber, its characterized in that between the annular roof of body and the interior rampart of the inboard edge of this annular roof, the vertical or slope downwardly extending of outside edge, the outer rampart: form first fire seam between outer rampart and the lower ring body, form the second between notch and the spacer and go out the fire seam, compare with prior art, the utility model has the advantages of form the first fire seam and the second that set up along the circumference interval between the cyclic annular body of fire lid and the lower ring body and go out the fire seam for the fire is gone out to the circumferential weld and is incessant in succession in circumference, makes the bottom of a boiler be heated more evenly, and the circumferential weld fire lid structure is more succinct in addition, the processing cost is lower, easy cleanness, difficult emergence fire hole blocks up.

Description

Fire cover for gas stove

Technical Field

The utility model relates to a domestic kitchen utensils and appliances technical field especially relates to a fire lid for gas-cooker.

Background

The fire holes of the existing atmospheric burner are roughly as follows: the fire hole cover is characterized by comprising a plurality of circular fire holes, square fire holes and strip fire holes, wherein the circular fire holes and the strip fire holes are formed by machining, dozens of fire holes are needed on a single fire cover to ensure the thermal strength of the fire holes, and the problems of low production efficiency, waste of a large amount of materials, high machining cost and the like exist; the square fire holes are generally formed by forging, but the square fire holes have more tolerance requirements, so that the requirement on the precision of the die is high, the die is complex and the service life is short. In addition, the fire holes are independent small holes, and pain spots which are difficult to clean after being blocked exist. The existing burner adopts the annular fire holes, so that the problem of high processing cost of the circular fire holes, the square fire holes and the strip fire holes is solved, but the annular fire hole channels are arranged on the top surface of the fire cover, the angle of the fire holes is 90 degrees, the technical defects that secondary air is difficult to supplement and flames easily interfere in a crossed manner between the adjacent annular fire holes exist, the problems of yellow flame, unqualified CO content, low thermal efficiency and the like can be caused, and the structure also has the problem that dirt easily blocks the fire holes. Therefore, how to overcome the above-mentioned drawbacks has become an important issue to be solved by those skilled in the art.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that a fire lid for gas-cooker that goes out difficult jam of fire passageway is provided to above-mentioned prior art current situation.

The utility model provides a technical scheme that above-mentioned technical problem adopted does: this a fire lid for gas-cooker, including annular body, form the gas mixing chamber between the annular roof of body and the interior rampart, the outer rampart that extend downwards that are vertical or slope from the inboard edge of this annular roof, outside edge, its characterized in that: the outer ring wall is partially retracted along the radial direction, a plurality of main fire grooves are radially formed on the lower end face of the outer ring wall, which is partially retracted along the radial direction, around the circumferential direction, and a spacer block is formed between every two adjacent main fire grooves; and a lower ring body is arranged below the annular body and corresponds to the position where the outer ring wall is partially retracted along the radial direction, notches for the embedding of the partition blocks are formed in the upper end surface of the lower ring body around the circumferential direction, convex blocks are formed between the adjacent notches, a first fire outlet seam is formed between each convex block and the corresponding main fire groove, and a second fire outlet seam is formed between each notch and the corresponding partition block.

In order to achieve that the fuel gas can be more moderate when flowing out through the first fire outlet seam and the second fire outlet seam, preferably, along the fuel gas outflow direction of the gas mixing cavity, the outer ring wall is located at the upstream position of the first fire outlet seam and the second fire outlet seam, and a groove is concavely arranged on the outer ring wall from bottom to top corresponding to the position between the first fire outlet seam and the second fire outlet seam. The outer ring wall is equivalent to a 'uniform flow wall' of the first fire outlet seam and the second fire outlet seam, the fuel gas flows out from the gas mixing cavity and then impacts the outer ring wall, so that the fuel gas speed is reduced, the fuel gas is further shunted and slowed down through the groove after being slowed down by the outer ring wall, and finally the flow speed of the fuel gas entering the first fire outlet seam and the second fire outlet seam is slower; meanwhile, the grooves divide the fuel gas of the gas mixing cavity from three directions and respectively flow to the first fire outlet seams and the second fire outlet seams on two sides, so that the airflow is reasonably organized, the fire outlet of the annular seams is more uniform, the combustion efficiency is higher, in addition, the diameter of the outer ring of the annular body is slightly larger than that of the outer ring of the lower ring body, and the overflow liquid is prevented from flowing into the lower ring body.

In order to realize the upward outflow of the first fire outlet seam and the second fire outlet seam, the spacer blocks are preferably gradually inclined upwards from inside to outside along the outflow direction of the fuel gas of the gas mixing cavity.

Further, the lug inclines upwards gradually from inside to outside along the gas outflow direction of the gas mixing cavity.

In order to better position the body and the lower ring body, preferably, the outer ring wall of the body is further provided with a limiting groove for positioning, and correspondingly, the lower ring body is provided with a limiting block matched with the limiting groove.

Compared with the prior art, the utility model has the advantages of form the first fire seam and the second of going out that set up along the circumference interval between the cyclic annular body of fire lid and the lower ring body and go out the fire seam for the circular seam goes out the fire and is incessant in succession in circumference, makes the bottom of a boiler be heated more evenly, and the circular seam fire lid structure is more succinct in addition, the processing cost is lower, easy clean, difficult emergence fire hole blocks up.

Drawings

FIG. 1 is a schematic structural view of a fire cover in an embodiment of the present invention;

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

FIG. 3 is an exploded view of FIG. 1;

fig. 4 is a schematic structural diagram of the body in the embodiment of the present invention.

Detailed Description

The present invention will be described in further detail with reference to the following embodiments.

As shown in FIGS. 1 to 4, the preferred embodiment of the present invention is shown. The fire cover for the gas stove of the embodiment comprises an annular body 1, an air mixing cavity 14 is formed between an annular top wall 11 of the 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, the outer annular wall 13 is partially retracted along the radial direction, a plurality of main fire grooves 131 are radially formed on the lower end surface of the outer annular wall 13 which is partially retracted along the radial direction in the circumferential direction, and a spacer 132 is formed between the adjacent main fire grooves 131; a lower ring body 2 is arranged below the annular body 1 corresponding to the position of the outer ring wall 13 which is partially retracted along the radial direction, notches 21 for the embedding of the partition blocks 132 are formed on the upper end surface of the lower ring body 2 along the circumferential direction, convex blocks 22 are formed between the adjacent notches 21, a first fire outlet seam 3 is formed between each convex block 22 and the corresponding main fire groove 131, and a second fire outlet seam 4 is formed between each notch 21 and the corresponding partition block 132. The first fire seam 3 and the second fire seam 4 that go out that form along the circumference interval setting between the cyclic annular body 1 of this fire lid and the lower ring body 2 for the circular seam goes out the fire and is incessant in succession in circumference, makes the bottom of a boiler be heated more evenly, and the circular seam fire lid structure is more succinct in addition, the processing cost is lower, easy cleanness, difficult emergence fire hole blocks up.

Specifically, in order to achieve that the gas can flow out through the first fire outlet seam 3 and the second fire outlet seam 4 more gradually, it is preferable that the outer annular wall 13 is located at an upstream position of the first fire outlet seam 3 and the second fire outlet seam 4 along the gas outflow direction of the gas mixing chamber 14, and the outer annular wall 13 is provided with a groove 133 which is concave from bottom to top corresponding to a position between the first fire outlet seam 3 and the second fire outlet seam 4. The outer ring wall 13 is equivalent to a 'uniform flow wall' of the first fire outlet seam 3 and the second fire outlet seam 4, the gas flows out from the gas mixing cavity 14 and then impacts the outer ring wall 13, so that the gas speed is reduced, the gas is further reduced in flow distribution through the groove 133 after being reduced by the outer ring wall 13, and finally the flow speed entering the first fire outlet seam 3 and the second fire outlet seam 4 is relatively low; meanwhile, the grooves divide the fuel gas of the gas mixing cavity 14 from three directions and respectively flow to the first fire outlet seams 3 and the second fire outlet seams 4 on two sides, so that the airflow is reasonably organized, the fire at the annular seams can be more uniform, the combustion efficiency is higher, in addition, the diameter of the outer ring of the annular body 1 is slightly larger than that of the outer ring of the lower ring body 2, and the overflow liquid is prevented from flowing in. In order to realize the upward outflow of the first fire outlet slit 3 and the second fire outlet slit 4, the spacer 132 is gradually inclined upward from the inside to the outside along the gas outflow direction of the gas mixing chamber 14. Wherein, the lug 22 is gradually inclined upwards from inside to outside along the gas outflow direction of the gas mixing cavity 14, in order to better position the body 1 and the lower ring body 2, the outer ring wall 13 of the body 1 is further provided with a limiting groove 134 for positioning, and correspondingly, the lower ring body 2 is provided with a limiting block 23 matched with the limiting groove 134.

To sum up, thereby this a gas that is used for fire lid of gas-cooker has slowed down the gas speed through strikeing to outer rampart 13 after gas mixing chamber 14 flows out, the gas slows down through outer rampart 13 back, does further reposition of redundant personnel through the recess again and slows down, finally reaches the velocity of flow that gets into first play gas gap 3 and second play gas gap 4 and is slower, and the recess is shunted the gas of gas mixing chamber 14 from three directions simultaneously, flows to first play gas gap 3 and the second play gas gap 4 of both sides respectively to make the circumferential weld play the fire more even.

Claims

1. A fire cover for a gas stove comprises an annular body (1), wherein a gas mixing cavity (14) is formed between an annular top wall (11) of the 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 is characterized in that: the outer ring wall (13) is partially retracted along the radial direction, a plurality of main fire grooves (131) are radially formed on the lower end face of the outer ring wall (13) which is partially retracted along the radial direction around the circumferential direction, and a spacer (132) is formed between the adjacent main fire grooves (131); and a lower ring body (2) is further arranged below the annular body (1) corresponding to the position of the outer ring wall (13) which is partially retracted along the radial direction, notches (21) for embedding the partition blocks (132) are formed in the upper end face of the lower ring body (2) in the circumferential direction, convex blocks (22) are formed between the adjacent notches (21), a first fire outlet seam (3) is formed between each convex block (22) and the corresponding main fire groove (131), and a second fire outlet seam (4) is formed between each notch (21) and the corresponding partition block (132).

2. Fire cover for gas cookers according to claim 1, characterized in that: along the gas outflow direction of the gas mixing cavity (14), the outer ring wall (13) is positioned at the upstream position of the first fire outlet seam (3) and the second fire outlet seam (4), and a groove (133) is concavely arranged on the outer ring wall (13) from bottom to top corresponding to the position between the first fire outlet seam (3) and the second fire outlet seam (4).

3. Fire cover for gas cookers according to claim 2, characterized in that: the spacing blocks (132) are gradually inclined upwards from inside to outside along the gas outflow direction of the gas mixing cavity (14).

4. Fire cover for gas cookers according to claim 3, characterized in that: the lug (22) is gradually inclined upwards from inside to outside along the gas outflow direction of the gas mixing cavity (14).

5. The fire cover for the gas range according to any one of claims 1 to 4, wherein: the outer ring wall (13) of the body (1) is further provided with a limiting groove (134) for positioning, and correspondingly, the lower ring body (2) is provided with a limiting block (23) matched with the limiting groove (134).