CN210861100U

CN210861100U - Fire cover for gas stove

Info

Publication number: CN210861100U
Application number: CN201921539512.XU
Authority: CN
Inventors: 程永超; 张帅; 郑军妹
Original assignee: Ningbo Fotile Kitchen Ware Co Ltd
Current assignee: Ningbo Fotile Kitchen Ware Co Ltd
Priority date: 2019-09-17
Filing date: 2019-09-17
Publication date: 2020-06-26
Anticipated expiration: 2029-09-17

Abstract

The utility model relates to a fire lid for gas-cooker, including fire lid body, this fire lid body has the gas mixing chamber, radially opens in the inside of fire lid body has horizontal ignition hole, and the bottom in horizontal ignition hole is opened has the income gas pocket in intercommunication gas mixing chamber, and the inboard opening in horizontal ignition hole is located the inner ring wall, and the outside opening in horizontal ignition hole is located outer rampart, its characterized in that: still including the branch spacer pipe that is arranged in mixing the gas in the horizontal ignition hole and air, compare with prior art, the utility model discloses an advantage is through setting up the branch spacer pipe that is used for accelerating mixed gas and air in horizontal ignition hole to accelerate the biography fire performance in horizontal ignition hole, simultaneously, the first through-hole that some were opened to the pipe wall of branch spacer pipe enables gas and air in the horizontal ignition hole and mixes more evenly in dividing the intraductal, ensures to pass the fire success rate.

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

At present, most of traditional burner fire covers sold in the market are milled through a groove, namely a fire ignition groove is milled through the top of the fire cover body, and the burner fire cover is easy to deform due to the fact that the fire cover body is disconnected at the fire ignition groove, so that the fire ignition effect is influenced. For example, a similar fire transfer structure is disclosed in the chinese patent invention "gas furnace head with fire transfer device and flameout protection function" with patent No. 201220464214.0 (publication No. CN202813375U), wherein an outer ring fire spraying ring is provided with a plurality of outer ring fire spraying holes, and the outer ring fire spraying holes are further provided with an outer ring fire transfer device, the outer ring fire transfer device is composed of a boss arranged on the inner side wall of the outer ring fire spraying ring, outer ring fire transfer holes and outer ring fire transfer grooves arranged on the boss and the outer ring fire spraying ring, the outer ring fire transfer holes are communicated with the outer ring fire transfer grooves, the outer ring fire transfer holes and the outer ring fire transfer grooves are communicated with one outer ring fire spraying hole, so as to realize rapid fire transfer; the fire transfer groove of the fire transfer structure is open and has the characteristic of rapid fire transfer, but the open fire transfer groove has two bad parts, the open fire transfer groove easily causes the blockage of the fire transfer groove, namely soup flowing down from the bottom of a pot easily flows into the fire transfer groove, and the fire transfer performance is influenced after the blockage, which is also the main reason for the blockage maintenance of the current fire transfer groove; and secondly, the requirement of the open type fire transfer groove on the air door of the stove is very high, and after the air door is opened to a large extent, too much air is generated at one time to cause too high air speed, so that flame is separated or is released during combustion, and the structural characteristic of the open type fire transfer groove is poor in flame stabilizing property.

Therefore, the existing burner fire cover also adopts a hidden fire transfer structure, for example, a Chinese utility model patent with patent number ZL2018206663176.9 (publication number CN208312375U) discloses a gas burner, which comprises a gas mixing chamber, an outer ring fire cover with an annular fire cover body and an inner ring fire cover, wherein the top of the gas mixing chamber is sequentially provided with an inner ring gas mixing chamber and an outer ring gas mixing chamber which are opened upwards from inside to outside, the inner ring fire cover and the outer ring fire cover are respectively covered on the inner ring gas mixing chamber and the outer ring gas mixing chamber, a secondary air loop is arranged between the inner ring gas mixing chamber and the outer ring gas mixing chamber, the side wall of the gas mixing chamber is provided with a secondary air supplement hole communicated with the secondary air loop, the fire cover body is radially provided with a fire transfer channel, and the fire transfer channel is communicated with the corresponding secondary air supplement hole. Supplementary hole through the secondary air supplements the air to passing the fire passageway to promote the high-efficient burning of passing fire flame in passing the fire passageway, and then promote and pass fire speed, though this pass fire passageway has solved the air problem of hidden biography fire passageway, and do not solve the problem of the mixing homogeneity of air and gas in the hidden passageway of passing fire.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that to above-mentioned prior art current situation and provide a fire lid that is used for gas-cooker that can promote gas and air misce bene, in order to guarantee to pass on fire performance.

The utility model provides a technical scheme that above-mentioned technical problem adopted does: the 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, a transverse ignition hole is radially formed in the fire cover body, an air inlet communicated with the gas mixing cavity is formed in the bottom of the transverse ignition hole, an inner side opening of the transverse ignition hole is located in the inner annular wall, and an outer side opening of the transverse ignition hole is located in the outer annular wall, and the fire cover is characterized in that:

also includes:

the separation pipe is detachably connected to the transverse ignition hole and comprises an inner side opening communicated with the inner side opening and an outer side opening communicated with the outer side opening; a gap is formed between the pipe wall of the separation pipe and the inner wall surface of the transverse ignition hole, and a first through hole communicated with the gap is further formed in the pipe wall of the separation pipe.

In order to facilitate the separation tube to be arranged in the transverse ignition hole, preferably, at least two connecting pieces are arranged on the tube wall of the separation tube along the circumferential direction, and correspondingly, the inner wall surface of the transverse ignition hole is provided with a slot for the connecting pieces to be inserted.

Furthermore, each connecting piece is provided with at least two second through holes. Each connecting piece is provided with at least two second through holes so as to ensure that the gas outlet speed of the gas is well matched with the mixing speed of the air, and the fire transfer is faster.

Further, the bore of the inner side opening and/or the outer side opening of the separation tube is smaller than the middle part of the separation tube. The middle of the separating pipe is large, the two sides of the separating pipe are small, the middle of the separating pipe is large, more air is contained in the middle of the separating pipe, more air can be supplemented, the mixing of gas and air is promoted, and the success of fire transfer is further ensured.

Compared with the prior art, the utility model has the advantages that the transverse ignition hole is a hidden type fire transfer channel which is hidden in the fire cover body and is relatively isolated from the air mixing chamber, so that the air door can be opened to be large, the primary air quantity entering the transverse ignition hole is increased, the speed is increased, more secondary air can be sucked into the transverse ignition hole, the transverse ignition hole is hidden in the fire cover body, overflowed liquid can be effectively prevented from entering the transverse ignition hole, fire transfer of the transverse ignition hole hidden in the fire cover body can be ensured, flame combustion in the transverse ignition hole can be ensured, and blockage of soup can be effectively prevented; through set up the branch bank of tubes that is used for accelerating mixed gas and air in horizontal ignition hole to accelerate the biography fire performance in horizontal ignition hole, simultaneously, the first through-hole that the pipe wall of branch bank of tubes was opened enables gas and the air in horizontal ignition hole and gets more evenly in separating intraductal the mixing, ensures to pass the fire success rate.

Drawings

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

FIG. 2 is a schematic structural view of a separation tube according to an embodiment of the present invention;

FIG. 3 is a schematic view of FIG. 1 with the divider tube omitted;

fig. 4 is a cross-sectional view of fig. 1.

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 in the embodiment comprises a fire cover body 1, a mixed gas 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, a transverse ignition hole 2 is radially formed in the fire cover body 1, an air inlet hole 21 communicated with the mixed gas cavity 14 is formed at the bottom of the transverse ignition hole 2, an inner side opening 22 of the transverse ignition hole 2 is positioned on the inner annular wall 12, an outer side opening 23 of the transverse ignition hole 2 is positioned on the outer annular wall 13, the fire cover further comprises a separating pipe 3 which is detachably connected with the transverse ignition hole 2, and the separating pipe 3 comprises an inner side opening 31 communicated with the inner side opening 22 and an outer side opening 32 communicated with the outer side opening 23; a gap 4 is formed between the pipe wall of the separation pipe 3 and the inner wall surface of the transverse ignition hole 2, and a first through hole 30 communicated with the gap 4 is further formed in the pipe wall of the separation pipe 3. The transverse ignition hole 2 is a hidden type fire transfer channel which is hidden in the fire cover body 1 and is relatively isolated from the air mixing chamber, so that the air door can be opened to be large, the primary air quantity entering the transverse ignition hole 2 is increased, the speed is increased, more secondary air can be sucked into the transverse ignition hole 2, the transverse ignition hole 2 is hidden in the fire cover body 1, overflowing liquid can be effectively prevented from entering the transverse ignition hole 2, fire transfer of the transverse ignition hole 2 hidden in the fire cover body 1 can be guaranteed, flame combustion in the transverse ignition hole 2 can be guaranteed, and blocking of soup can be effectively prevented; through set up the separate tube 3 that is used for accelerating mixed gas and air in horizontal ignition hole 2 to accelerate the biography fire performance in horizontal ignition hole 2, simultaneously, some first through-holes 30 are opened to the pipe wall of separate tube 3, and the gas that enables in horizontal ignition hole 2 and air mix in separate tube 3 more evenly, ensure to pass the fire success rate.

Specifically, in order to facilitate the arrangement of the separation tube 3 in the transverse ignition hole 2, at least two connecting pieces 33 are arranged on the tube wall of the separation tube 3 along the circumferential direction, and the inner wall surface of the transverse ignition hole 2 is provided with a slot 24 into which the connecting piece 33 is inserted. Moreover, each connecting sheet 33 is provided with at least two second through holes 331, and each connecting sheet 33 is provided with at least two second through holes 331, so that the good matching of the gas outlet speed and the air mixing speed is ensured, and the fire transfer is faster. The calibers of the inner side opening 31 and the outer side opening 32 of the separating pipe 3 are smaller than the middle part of the separating pipe 3, the middle of the separating pipe 3 is large, and the two sides of the separating pipe 3 are small, so that large air in the middle can be increased, more air can be supplemented, the mixing of gas and air is promoted, and the successful fire transfer is ensured. Finally, the transverse ignition hole 2 is divided into two cavities by the tubular separating tube 3, a first cavity is formed by surrounding the inner wall surface of the separating tube 3, a gap 4 which is a second cavity is formed between the tube wall of the separating tube 3 and the inner wall surface of the transverse ignition hole 2, gas is combusted in the first cavity, air is continuously consumed, so that suction force is generated on secondary air of the second cavity, and therefore the secondary air of the second cavity can be continuously supplemented into the first cavity, meanwhile, the second through holes 331 formed in the connecting pieces 33 of the separating tube 3 are utilized to achieve good matching of the gas outlet speed of the gas and the air mixing speed, and fire transmission is faster.

Claims

1. The utility model provides a fire lid for gas-cooker, includes fire lid body (1), is formed with air mixing chamber (14) between annular roof (11) of this fire lid body (1) and the inner ring wall (12), the outer ring wall (13) that extend downwards from the inboard edge, the outside edge of this annular roof (11) are vertical or slope, radially open in the inside of fire lid body (1) has horizontal ignition hole (2), the bottom of horizontal ignition hole (2) is opened has the income gas pocket (21) that communicates air mixing chamber (14), the inboard opening (22) of horizontal ignition hole (2) are located inner ring wall (12), the outside opening (23) of horizontal ignition hole (2) are located outer ring wall (13), its characterized in that:

also includes:

the separation pipe (3) is used for mixing gas and air in the transverse ignition hole (2), is detachably connected in the transverse ignition hole (2), and comprises an inner side opening (31) communicated with the inner side opening (22) and an outer side opening (32) communicated with the outer side opening (23); a gap (4) is formed between the pipe wall of the separation pipe (3) and the inner wall surface of the transverse ignition hole (2), and a first through hole (30) communicated with the gap (4) is further formed in the pipe wall of the separation pipe (3).

2. Fire cover for gas cookers according to claim 1, characterized in that: at least two connecting sheets (33) are arranged on the wall of the separating pipe (3) along the circumferential direction, and correspondingly, the inner wall surface of the transverse ignition hole (2) is provided with a slot (24) for the insertion of the connecting sheets (33).

3. Fire cover for gas cookers according to claim 2, characterized in that: at least two second through holes (331) are formed on each connecting sheet (33).

4. The fire cover for the gas range according to any one of claims 1 to 3, wherein: the inner opening (31) and/or the outer opening (32) of the separating tube (3) have a smaller diameter than the middle of the separating tube (3).