CN115247788A - Inner ring fire cover and stove burner - Google Patents

Abstract

The invention discloses an inner ring fire cover and a stove burner, wherein the inner ring fire cover comprises a fire cover cavity and an inner ring wall, and a fire outlet is formed in the side wall of the fire cover cavity; the inner ring wall is arranged in the fire cover cavity and divides the fire cover cavity into a first cavity and a second cavity, the inner ring wall is provided with a through groove, the through groove is used for communicating the first cavity and the second cavity, so that part of gas flows into the second cavity through the through groove after entering the first cavity and flows out of the fire outlet hole. When the gas arrives the fire cover inner ring, a part of gas is spouted to the outside through the fire hole on the chamber lateral wall of fire cover by the second cavity, and another part of gas flows into the second cavity through the through groove on the inner ring wall through the first cavity, and this part of gas can form the vortex through the effect of inner ring wall, makes the gas speed descend to reach and reduce the gas and spout the outside speed by the fire cover cavity, avoid leading to the defect of ignition failure because of the velocity of flow is too fast.

Description

Inner ring fire cover and cooking utensils combustor

Technical Field

The invention relates to the technical field of burners, in particular to an inner ring fire cover and a stove burner.

Background

In the use process of the cooker burner, the gas of the inner ring fire cover is easy to flow at an excessively high speed when being sprayed out from the fire outlet hole, so that insufficient air supplement is caused, and the problems of misfire, hand loosening, flameout and the like of a spark point occur. The ignition and fire protection functions are basic functions of the gas cooker, the major faults related to the gas cooker in the current market are the conditions that a spark point is not on fire and a hand is loosened to extinguish the fire, and the use experience of customers is seriously influenced by the problems of ignition and fire protection.

Disclosure of Invention

The invention aims to solve the technical problem of failure of ignition caused by over-high flow speed when gas of an inner ring fire cover is sprayed out from a fire outlet hole in the prior art, and provides an inner ring fire cover and a cooker burner.

The invention solves the technical problems through the following technical scheme:

an inner ring fire cover comprises a fire cover chamber and an inner ring wall, wherein a fire hole is formed in the side wall of the fire cover chamber; the inner ring wall is arranged in the fire cover cavity and divides the fire cover cavity into a first cavity and a second cavity, the inner ring wall is provided with a through groove, and the through groove is used for communicating the first cavity and the second cavity, so that part of gas enters the first cavity, flows to the second cavity through the through groove and flows out of the fire outlet hole.

In this scheme, adopt above-mentioned structural style, the inner ring wall divide into first cavity and second cavity with the fire lid cavity, when the gas reachd the fire lid inner ring, partly gas is through the play fire hole blowout outside on the fire lid cavity lateral wall by the second cavity, another part gas flows into the second cavity through the groove that runs through on the inner ring wall of first cavity, this part gas can form the vortex through the effect of inner ring wall, make the gas speed descend, thereby reach and reduce the gas by the speed that the fire lid cavity blowout outside, avoid leading to the defect of ignition failure because of the velocity of flow is too fast, and also can make the burning more abundant.

Preferably, the inner ring fire cover comprises a cover plate and an outer ring wall, the outer ring wall is arranged at the bottom of the cover plate and encloses the open fire cover chamber, and the inner ring wall and the outer ring wall are concentrically arranged at the bottom of the cover plate.

In this scheme, adopt above-mentioned structural style, the fire lid cavity comprises outer rampart and apron, simple structure, low in manufacturing cost. The opening of the fire cover cavity faces downwards, so that gas can enter conveniently. The inner ring wall and the outer ring wall are concentrically arranged on the cover plate, and gas flows into the second chamber from the first chamber more evenly in all directions, so that the fire is more stable.

Preferably, the height of the outer annular wall is greater than the height of the inner annular wall.

In this scheme, part gas can't come to flow into the second cavity by first cavity from the through groove, adopts above-mentioned structural style, can guarantee to remain in the fire lid cavity from the gas that the inner ring wall lower extreme spilled over, can not flow to the outside.

Preferably, the inner ring fire cover comprises a fire hole part and an ignition part, the ignition part is arranged on the side edge of the fire hole part and protrudes in the radial direction, the inner ring wall comprises a blocking wall and a communication ring wall, the blocking wall faces the ignition part, and the through groove is arranged on the communication ring wall.

In this scheme, adopt above-mentioned structural style, because do not set up the through groove on the fender wall of portion of igniteing, the gas that is in first cavity can only be flowed by the intercommunication cliff, and the gas speed of flow direction portion of igniteing is compared in the gas of other directions slower to improve the ignition performance.

Preferably, the number of the through grooves is more than two, and the through grooves are uniformly arranged along the communication annular wall.

In this scheme, adopt above-mentioned structural style, the gas is more even in all directions by the second cavity of intercommunication rampart flow direction, goes out the fire more stably.

Preferably, the fire hole portion is arranged above the cover plate and is in clearance fit with the cover plate, and the cover plate is provided with a through hole in the second chamber.

In this scheme, adopt above-mentioned structural style, the gas of second cavity is except that the direct fire hole that goes out of outer rampart flows outside, and partly direct through-hole from the apron flows outside by the clearance between fire hole portion and the apron in addition, and this part gas concentration is higher than the gas concentration that flows out by going out the fire hole, and two parts gas mixes and can produce better combustion effect.

Preferably, the ignition part comprises a fire point, a groove is formed in the lower surface of the ignition part, and the fire point is arranged at the bottom of the groove.

In this scheme, adopt above-mentioned structural style, by the gas that goes out the fire hole outflow or by the clearance outflow between fire hole portion and the apron, when flowing to thermoelectricity department by the recess, can produce and form the vortex, further reduce the velocity of flow of gas, ignition performance improves.

Preferably, the upper surface of the fire hole part is provided with an annular blocking eave along the edge.

In this scheme, adopt above-mentioned structural style, the overflow that flows to fire hole portion upper surface can not flow to the clearance between fire hole portion and the apron under the effect that keeps off the eaves, perhaps flows to the fire hole department of outer rampart, has avoided the gas channel to be stopped up by the overflow, improves ignition, guarantor's fire performance.

Preferably, the brim is provided with an overflow port, and the side wall of the fire cover chamber is provided with an overflow tank at a position corresponding to the overflow port.

In this scheme, adopt above-mentioned structural style, through setting up the overflow mouth and the overflow groove that corresponds with the overflow mouth, can make the overflow can follow the fire hole portion upper surface smoothly and unhindered ground from setting up the ground path flow in advance to the below, prevent that the overflow from overflowing to keep off the eaves.

A cooking utensils combustor includes foretell inner ring fire lid.

In this scheme, adopt above-mentioned structural style, when the gas reachs the fire lid inner ring, partly gas in the inner ring fire lid is spout outside through the play fire hole on the fire lid cavity lateral wall by the second cavity, another part gas flows into the second cavity through the through groove on the first cavity through the inner ring wall, this part gas can form the vortex through the effect of giving the inner ring wall, make the gas speed descend to reach and reduce the gas and spout outside speed by the fire lid cavity, avoid leading to cooking utensils combustor ignition failure because of the velocity of flow is too fast.

The positive progress effects of the invention are as follows: when the gas arrived the fire lid inner ring, partly gas was spouted outside through the hole of being fired on the chamber lateral wall of fire lid chamber by the second cavity, and another part gas flows into the second cavity through the through groove on the first cavity through the inner ring wall, and this part gas can form the vortex through the effect for the inner ring wall, makes the gas speed descend to reach and reduce the gas and be spouted outside speed by fire lid chamber, avoid leading to the defect of ignition failure because of the velocity of flow is too fast.

Drawings

Fig. 1 is a schematic structural diagram of an inner ring fire cover in an embodiment of the invention.

Fig. 2 is another schematic structural diagram of the inner ring fire cover in an embodiment of the invention.

Description of the reference numerals

Fire lid chamber 1

First chamber 11

Second chamber 12

Cover plate 2

Through-hole 21

Outer annular wall 3

Fire outlet 31

The overflow tank 32

Inner annular wall 4

Retaining wall 41

Communicating annular wall 42

Through groove 421

Fire hole part 5

Eaves 51

Overflow port 52

Ignition part 6

Groove 61

Fire point 62

Detailed Description

The invention is further illustrated by the following examples, which are not intended to limit the scope of the invention.

As shown in fig. 1-2, an inner ring fire cover comprises a fire cover chamber 1 and an inner ring wall 4, wherein the side wall of the fire cover chamber 1 is provided with fire holes 31; the inner ring wall 4 is arranged in the fire lid chamber 1 and divides the fire lid chamber 1 into a first chamber 11 and a second chamber 12, the inner ring wall 4 is provided with a through groove 421, and the through groove 421 is used for communicating the first chamber 11 and the second chamber 12, so that part of the fuel gas enters the first chamber 11 and then flows to the second chamber 12 through the through groove 421, and flows out of the fire outlet 31.

In this embodiment, adopt above-mentioned structural style, inner ring wall 4 divides fire lid cavity 1 into first cavity 11 and second cavity 12, when the gas reachd the fire lid inner ring, partly gas is spouted to the outside through fire hole 31 on the fire lid cavity 1 lateral wall by second cavity 12, another part gas flows into second cavity 12 through first cavity 11 through the groove 421 that runs through on the inner ring wall 4, this part gas can form the vortex through the effect of inner ring wall 4, make the gas speed descend, thereby reach and reduce the gas and cover the speed of cavity 1 blowout to the outside by the fire, avoid because of the too fast defect that leads to the ignition to fail of velocity of flow.

As a preferred embodiment, the inner ring fire lid comprises a circular cover plate 2 and an outer ring wall 3, the diameter of the outer ring wall 3 is the same as that of the cover plate 2, the outer ring wall 3 is arranged at the bottom of the cover plate 2 and encloses an open fire lid chamber 1, and an inner ring wall 4 and the outer ring wall 3 are arranged at the bottom of the cover plate 2 concentrically. The outer annular wall 3 comprises an upper annular wall and a lower annular wall which are arranged from top to bottom, the inner diameters of the upper annular wall and the lower annular wall are the same, the outer diameter of the lower annular wall is larger than that of the lower annular wall, and the fire outlet 31 is arranged on the upper annular wall.

In the embodiment, the fire lid chamber 1 is composed of the outer annular wall 3 and the cover plate 2 by adopting the structural form, the structure is simple, and the manufacturing cost is low. The opening of the fire cover chamber 1 faces downwards, so that gas can enter conveniently. The inner ring wall 4 and the outer ring wall 3 are concentrically arranged on the cover plate 2, and gas flows into the second chamber 12 from the first chamber 11 more evenly in all directions, so that the fire is more stable. The upper ring wall is thicker than the lower ring wall, the fire outlet holes 31 are formed in the upper ring wall, the axial length is large, and the gas flowing-out guiding direction is better.

As a preferred embodiment, the height of the outer annular wall 3 is greater than the height of the inner annular wall 4.

In this embodiment, a part of the gas cannot flow into the second chamber 12 from the first chamber 11 through the through groove 421, and the gas overflowing from the lower end of the inner ring wall 4 is ensured to be retained in the fire lid chamber 1 and not flow to the outside by adopting the above structure.

In a preferred embodiment, the inner ring fire cover comprises a fire hole part 5 and an ignition part 6, the ignition part 6 is arranged at the side of the fire hole part 5 and protrudes in the radial direction, the inner ring wall 4 comprises a blocking wall 41 and a communication ring wall 42, the blocking wall 41 and the communication ring wall 42 form the complete inner ring wall 4, the blocking wall 41 faces the ignition part 6, and the through groove 421 is arranged on the communication ring wall 42.

In the present embodiment, with the above-mentioned structure, since the through groove 421 is not provided on the blocking wall 41 facing the ignition portion 6, the gas in the first chamber 11 can only flow out from the communicating annular wall 42, and the speed of the gas flowing to the ignition portion 6 is slower than that of the gas flowing in other directions, so as to avoid impact ignition caused by the gas flow, thereby improving the ignition performance. Of course, in other embodiments, the ignition portion 6 may be provided separately from the inner ring fire cover as long as the gas from the inner ring fire cover can be ignited by the ignition portion.

In a preferred embodiment, the number of the through grooves 421 is plural, the plural through grooves 421 are uniformly arranged along the communication annular wall 42, and the through grooves 421 are axially cut into the communication annular wall 42 from the lower end thereof to end at a position approximately one-fourth away from the upper end of the communication annular wall 42.

In the present embodiment, with the above structure, the gas flowing from the communication ring wall 42 to the second chamber 12 is more uniform in all directions, and the fire is more stable.

In specific implementation, the penetrating groove 421 may also be cut in other directions, for example, cut obliquely in a direction having a certain included angle with the axial direction, or may also form a spiral structure, so as to improve the disturbance performance to the gas and further improve the combustion effect.

In a preferred embodiment, the fire hole portion 5 is disposed above the cover plate 2 and is in clearance fit with the cover plate 2, and the cover plate 2 is provided with a through hole 21 in the second chamber 12.

In the present embodiment, with the above-mentioned structure, besides the gas of the second chamber 12 directly flows to the outside from the fire hole 31 of the outer annular wall 3, a part of the gas directly flows to the outside from the through hole 21 of the cover plate 2 through the gap between the fire hole part 5 and the cover plate 2, and the concentration of the part of the gas is higher than that of the gas flowing out from the fire hole 31, and the two parts of the gas are mixed to generate a better combustion effect.

In specific implementation, the inner ring fire cover is vertically arranged on the gas stove, gas enters the inner ring fire cover from bottom to top, the concentration of the gas above the inner ring fire cover is higher, and a part of gas can escape out of the inner ring fire cover through a gap between the fire hole part 5 and the cover plate 2 through the through hole 21, so that the combustion effect is improved; most of the other part of the fuel gas enters the second chamber 12, so that the fuel gas can be stably supplied for combustion; a small part of gas enters the first chamber 11, and the combustion speed of the gas is reduced under the disturbance of the inner annular wall 4, so that the combustion is more uniform; thereby make the holistic burning of inner ring fire lid stable, and combustion efficiency is high.

As a preferred embodiment, the ignition part 6 includes an ignition point 62, a groove 61 is provided on the lower surface of the ignition part 6, and the ignition point 62 is provided at the bottom of the groove 61.

In the present embodiment, with the above-described configuration, when the gas flowing out of the fire hole 31 or the gas flowing out of the gap between the fire hole portion 5 and the cover plate 2 flows from the groove 61 to the fire point, a vortex is generated, the flow rate of the gas is further reduced, and the ignition performance is improved.

As a preferred embodiment, an annular blocking eave 51 is disposed along an edge of the upper surface of the fire hole portion 5, an outer wall of the blocking eave 51 is perpendicular to the fire hole portion 5, and an inner wall of the blocking eave 51 extends from top to bottom to the upper surface of the fire hole portion 5 in a slope shape.

In the present embodiment, with the above structure, the overflow liquid flowing to the upper surface of the fire hole portion 5 will not flow to the gap between the fire hole portion 5 and the cover plate 2 or flow to the fire hole 31 of the outer annular wall 3 under the action of the stop eaves 51, so as to prevent the gas channel from being blocked by the overflow liquid, and improve the ignition and fire protection performance.

In a preferred embodiment, the brim 51 is provided with an overflow port 52, and the sidewall of the fire lid chamber 1 is provided with an overflow groove 32 at a position corresponding to the overflow port 52.

In the present embodiment, with the above-mentioned structure, by providing the overflow port 52 and the overflow tank 32 corresponding to the overflow port 52, the overflow can smoothly flow from the upper surface of the fire hole portion 5 to the lower side without being obstructed from the previously-provided path, and the overflow is prevented from overflowing the eaves 51.

A stove burner comprises the inner ring fire cover.

In this embodiment, adopt above-mentioned structural style, when the gas reachd the burner cap inner ring, partly gas in the inner ring burner cap is spouted to the outside through going out fire hole 31 on the burner cap cavity 1 lateral wall by second cavity 12, and another part gas flows into second cavity 12 through first cavity 11 through passing through groove 421 on inner ring wall 4, and this part gas can form the vortex through the effect of giving inner ring wall 4, makes the gas speed descend to reach and reduce the gas and spout the speed to the outside from burner cap cavity 1, avoid leading to the cooking utensils combustor to ignite the failure because of the velocity of flow is too fast.

While specific embodiments of the invention have been described above, it will be appreciated by those skilled in the art that this is by way of example only, and that the scope of the invention is defined by the appended claims. Various changes and modifications to these embodiments may be made by those skilled in the art without departing from the spirit and scope of the invention, and these changes and modifications are within the scope of the invention.

Claims (10)

1. The inner ring fire cover is characterized by comprising a fire cover chamber and an inner ring wall, wherein a fire outlet is formed in the side wall of the fire cover chamber;

the inner ring wall is arranged in the fire cover cavity and divides the fire cover cavity into a first cavity and a second cavity, the inner ring wall is provided with a through groove, and the through groove is used for communicating the first cavity with the second cavity so that part of gas enters the first cavity and then flows to the second cavity through the through groove and flows out of the fire hole.

2. The inner ring fire lid of claim 1, wherein the inner ring fire lid comprises a lid plate and an outer ring wall, the outer ring wall is disposed at the bottom of the lid plate and encloses the fire lid chamber, which is open, and the inner ring wall and the outer ring wall are disposed at the bottom of the lid plate concentrically.

3. The inner ring fire cap of claim 2, wherein the height of the outer ring wall is greater than the height of the inner ring wall.

4. The inner ring fire cover as claimed in claim 2, wherein the inner ring fire cover comprises a fire hole portion and an ignition portion provided at a side of the fire hole portion and protruding in a radial direction, the inner ring wall comprises a blocking wall facing the ignition portion and a communication ring wall, and the through groove is provided on the communication ring wall.

5. The inner ring fire cover as claimed in claim 4, wherein the number of the through grooves is two or more, and a plurality of the through grooves are uniformly arranged along the communication ring wall.

6. The inner ring fire cover of claim 4 wherein the fire aperture portion is disposed above and in clearance fit with the cover plate, the cover plate being provided with a through-hole in the second chamber.

7. The inner ring fire cover as claimed in claim 6, wherein the ignition part includes a fire point, a groove is provided on a lower surface of the ignition part, and the fire point is provided at a bottom of the groove.

8. The inner ring fire cover as claimed in claim 6, wherein the upper surface of the fire hole portion is provided with an annular ledge along an edge.

9. The inner ring fire cover of claim 8, wherein the retaining ledge is provided with an overflow port, and the side wall of the fire cover chamber is provided with an overflow trough at a position corresponding to the overflow port.

10. A cooktop burner comprising an inner ring fire cap as claimed in any of claims 1 to 9.

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