CN214745928U

CN214745928U - Inner ring fire cover for gas stove and gas stove

Info

Publication number: CN214745928U
Application number: CN202120603099.XU
Authority: CN
Inventors: 方晓艳; 俞瑜
Original assignee: Ningbo Fotile Kitchen Ware Co Ltd
Current assignee: Ningbo Fotile Kitchen Ware Co Ltd
Priority date: 2021-01-07
Filing date: 2021-03-19
Publication date: 2021-11-16
Anticipated expiration: 2031-03-19

Abstract

The utility model discloses an inner ring fire lid and gas-cooker for gas-cooker belongs to gas-cooker technical field. The inner ring fire cover comprises a lower cover and an upper cover, and the lower cover is provided with a gas mixing chamber, a fire hole, a flame stabilizing hole and a gas mixing chamber. The fire holes are arranged around the gas mixing chamber and communicated with the gas mixing chamber, the flame stabilizing holes are through holes which are communicated up and down, and the lower ends of the flame stabilizing holes are communicated with the gas mixing chamber; the gas mixing cavity surrounds the flame stabilizing hole, the upper cover is provided with a blocking rib protruding downwards, the blocking rib is inserted into the gas mixing cavity and keeps a distance from any wall surface of the gas mixing cavity, a first flame stabilizing groove and a second flame stabilizing groove are formed between the upper cover and the lower cover, and the flame stabilizing hole, the first flame stabilizing groove, the gas mixing cavity and the second flame stabilizing groove are sequentially communicated to form a flame stabilizing channel. The utility model discloses in, the speed of the outflow of gas from flame stabilizing groove is reduced, and finally obtains the intensive mixing in first flame stabilizing groove department from the punctiform gas that flame stabilizing hole flows out, has improved the flame stabilizing effect, in addition, still can block the overflow through blockking the muscle and mix the gas chamber and get into and block up flame stabilizing hole to have and prevent stifled effect.

Description

Inner ring fire cover for gas stove and gas stove

The application of the invention is 2021, 1, 7, entitled "inner ring fire cover for gas cooker and gas cooker", which is the priority of Chinese patent application CN 2021100175769. The present application refers to the above-mentioned chinese patent application in its entirety.

Technical Field

The utility model relates to a gas cooking utensils technical field especially relates to an inner ring fire lid and gas-cooker for gas-cooker.

Background

The ignition and fire protection functions are basic functions of the gas cooker, and the use experience of customers is seriously influenced. The major types of faults related to the existing market are that the existing market has spark points to avoid ignition (ignition problem) and hands are loosened to extinguish (fire protection problem); the failure category is mainly the fire cover fire hole blocking, namely, the ignition hole or the fire protection hole is blocked due to the blocking prevention problem, so that the problems of ignition and fire protection are solved.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is to provide an interior ring fire lid and gas-cooker for gas-cooker in order to improve the ignition of gas cooking utensils, protect fire performance.

The utility model discloses a solve above-mentioned technical problem through following technical scheme:

an inner ring fire cover for a gas range, comprising:

the lower cover is provided with a gas mixing chamber, fire holes, flame stabilizing holes and a gas mixing chamber, the opening of the gas mixing chamber faces downwards, the fire holes are arranged around the gas mixing chamber and communicated with the gas mixing chamber, the upper end face of the lower cover faces the lower opening to form a plurality of flame stabilizing holes which are arranged around the center of the lower cover at intervals and communicated with the gas mixing chamber, and the upper end face of the lower cover is recessed downwards to form the gas mixing chamber arranged around the flame stabilizing holes; and the combination of (a) and (b),

the upper cover, the upper cover has the muscle that blocks of downward bulge, the upper cover lid fits the lower cover, and with form between the up end of lower cover and be located respectively block first flame stabilizing groove and the second flame stabilizing groove in the muscle, outside, block the muscle and insert mix the air cavity, and with arbitrary wall in air cavity all keeps the distance, and the air current passes through in order mix air cavity, flame stabilizing hole, first flame stabilizing groove, mix air cavity and second flame stabilizing groove follow the side of inner ring fire lid flows.

In this scheme, the speed of the outflow of gas from steady flame groove is reduced, and the punctiform gas that flows out from steady flame hole finally obtains intensive mixing in first steady flame groove department, has improved steady flame effect, in addition, still can block the overflow entering and block up steady flame hole through blockking the muscle and mixing the gas chamber to have and prevent stifled effect.

Preferably, the upper cover include with the disk body that the connection can be dismantled to the lower cover, it locates to block the muscle on the disk body, the lower surface of disk body with form between the up end of lower cover first flame stabilizing slot with the second flame stabilizing slot.

In this scheme, adopt the disk body to dismantle with the lower cover and be connected, be convenient for dismouting upper cover and lower cover at any time clean.

Preferably, a lower baffle ring protruding downwards is arranged on the periphery of the disk body, and the lower baffle ring is positioned on the outer side of the second flame stabilizing groove; in this scheme, keep off the ring down and shelter from the overflow for the lower cover, prevent that the overflow from getting into fire hole or second flame stabilizing tank in, can also block the gas that flows out from the second flame stabilizing tank to change the flow direction of gas, make the gas flow of fire hole department below.

And/or the periphery of the tray body is provided with an upward convex upper baffle ring, and the upper baffle ring gradually extends from the lower end to the upper end in the direction away from the tray body, so that the overflowing liquid is guided better.

Preferably, the upper cover is further provided with a first positioning rib protruding downwards, the lower cover is provided with a positioning groove with an upward opening and positioned on the inner side of the first flame stabilizing groove, and the first positioning rib is inserted into the positioning groove and mutually limited with the positioning groove in the radial direction of the upper cover.

Preferably, the upper cover is further provided with an overflow hole communicated with the positioning groove, the lower cover is further provided with a drainage groove arranged on the side face of the positioning groove, and the drainage groove is used for guiding the overflowing liquid in the positioning groove to the outside of the inner ring fire cover.

In this scheme, through setting up overflow hole and drainage groove, can be with the discharge guide on the disk body to the constant head tank in, prevented that the discharge from overflowing to the lower cover all around after the disk body upper surface accumulation, cause the condition of the fire hole jam of lower cover.

Preferably, one end of each drainage groove protrudes outwards along the radial direction of the lower cover to form drainage side plates arranged in pairs, and each drainage bottom plate is connected with the corresponding drainage side plate, and the lower ends of the drainage side plates extend downwards relative to the corresponding drainage bottom plate;

the side wall of the lower cover is also provided with a fire protection hole communicated with the gas mixing chamber, and the fire protection hole is positioned below the drainage bottom plate and between the lower ends of the two drainage side plates.

In this scheme, the inner ring fire lid has especially been kept away from to the overflow that outside convex drainage groove made the derivation to the steady flame hole and fire hole have been played and have been prevented stifled effect, and then has guaranteed the steady flame and the guarantor effect of inner ring fire lid. The drainage groove can also be used as an anti-overflow brim of a thermocouple of a gas stove. The drainage groove which protrudes outwards encloses a semi-enclosed fire protection space, so that the overflowing liquid is prevented from flowing to the fire protection hole, and the fire protection hole is prevented from being blocked.

Preferably, the upper end of the upper cover has an upper guide surface for guiding the overflowing liquid toward the overflow hole; the upper guide surface is gradually inclined downwards from outside to inside so that the overflowing liquid automatically flows to the overflowing hole, and therefore the drainage effect and efficiency are improved.

And/or the bottom surface of the positioning groove gradually protrudes upwards from the periphery to the center to form a lower guide surface; in this scheme, high, low all around in the middle of the guide face to the overflow can be dispersed around to the constant head tank rapidly, then is guided out through the drainage groove.

And/or the bottom surface of the drainage groove is gradually inclined downwards from one end connected with the positioning groove to the other end; thereby improving the drainage effect and efficiency.

And/or the width of the drainage groove is gradually increased from one end connected with the positioning groove to the other end; thereby gradually slowing down the flow speed of the overflowing liquid and preventing the overflowing liquid from splashing or being sprayed to other components of the gas stove after dropping because the overflowing liquid falls from the drainage groove at an excessively high speed.

And/or the surfaces of the lower cover corresponding to the first flame holding grooves and the second flame holding grooves are gradually inclined downwards from a position close to the center of the lower cover to a position far away from the center of the lower cover; therefore, when the overflowing liquid enters the first flame stabilizing groove or the second flame stabilizing groove seriously, the surface of the lower cover plays a certain guiding role on the overflowing liquid, and the overflowing liquid discharging efficiency is improved.

And/or the upper surface of the positioning groove is higher than the flame stabilizing holes, so that the fuel gas can better flow to one side of the second flame stabilizing groove.

And/or the lower cover is provided with a second positioning rib protruding upwards, the second positioning rib forms the upper end of the positioning groove, and the second positioning rib is provided with a notch at the position corresponding to the drainage groove.

In this scheme, make through setting up second location muscle and keep the distance between the lower surface of the upper end of steady flame hole and upper cover, improved the buffering effect of air current, be favorable to reducing the speed of gas.

Preferably, the lower cover is provided with an upper layer of fire holes and a lower layer of fire holes; the lower cover is provided with a first side part and a second side part, one end of the fire hole on the upper layer is located on the outer wall surface of the first side part, and one end of the fire hole on the lower layer is located on the outer wall surface of the second side part.

In this scheme, two-layer fire hole has improved combustion effect.

Preferably, a third flame holding groove is formed between the lower end face of the first side part and the upper end face of the second side part, and the third flame holding groove is communicated with the fire holes in the upper layers and the outer part of the inner ring fire cover.

In this scheme, set up the third flame stabilizing groove between two-layer fire hole to the inner ring fire lid has formed the fire hole of second flame stabilizing groove, upper strata, third flame stabilizing groove and lower floor from the top down in proper order, thereby has guaranteed the flame stabilizing effect in two-layer fire hole better.

Preferably, the lower cover is provided with a drainage groove, one end of the drainage groove extends out of the outer wall surface of the first side part along the radial direction of the lower cover, and a fire protection space with the upper end and two sides being enclosed is formed; the lower cover is further provided with a first fire protection hole and a second fire protection hole which are communicated with the gas mixing chamber, one end of each first fire protection hole is located on the outer wall surface of the first side portion, at least part of each first fire protection hole is located in the fire protection space, and one end of each second fire protection hole is located on the upper end surface of the second side portion.

In this scheme, the second is protected hole and the gas phase offset that first fire protection hole flows to slow down the velocity of flow of gas, improved the effect of protecting the fire. In addition, the second fire-protection hole is communicated with the third flame-stabilizing groove, and certain hedging can be generated with the third flame-stabilizing groove to slow down the flow speed, so that the fire-protection effect is further improved.

Preferably, the fire holes on the upper layer and the fire holes on the lower layer are staggered in the vertical direction, so that the uniformity of flame around the inner ring fire cover is improved;

and/or the fire hole is obliquely arranged, and one end of the fire hole positioned on the outer wall surface of the lower cover is higher than one end of the fire hole positioned on the inner wall surface of the lower cover;

and/or the lower surface of the first side part and the upper surface of the second side part extend downwards from inside to outside gradually, so that when the overflowing liquid seriously flows to the third flame holding groove, the lower surface of the first side part and the upper surface of the second side part have a guiding effect on the overflowing liquid, and the overflowing liquid is prevented from blocking the place where the third flame holding groove is communicated with the fire hole.

Preferably, the outer edge of the upper cover protrudes out of the outer wall surface of the first side portion, and the outer wall surface of the first side portion protrudes out of the outer wall surface of the second side portion, so that a layer-by-layer progressive form is formed, and the upper layer serves as an anti-overflow structure of the lower layer, so that the risk of blocking the fire hole, the flame stabilizing hole and the fire protection hole is reduced.

And/or the lower cover further comprises a third side part and a fourth side part, the third side part is positioned between the second side part and the fourth side part, the outer wall surface of the second side part protrudes out of the outer wall surface of the third side part, and the outer wall surface of the third side part protrudes out of the outer surface of the fourth side part, so that overflowing liquid can be further guided layer by layer when overflowing liquid is serious.

Preferably, the side wall of the lower cover is inwards recessed to form an ignition groove extending in the vertical direction, the side surface of the lower cover is outwards protruded to form a lower layer brim, and the lower layer brim is positioned above the ignition groove.

In the scheme, the lower-layer brim prevents the overflow liquid from flowing to the ignition groove, so that the hole of the ignition needle is prevented from being blocked.

Preferably, the lower cover is provided with a main ignition hole communicated with the gas mixing chamber at the ignition groove, the main ignition hole comprises a first hole section and a second hole section which are sequentially connected, the first hole section is communicated with the gas mixing chamber, the second hole section is communicated with the ignition groove, and the aperture of the first hole section is smaller than that of the second hole section.

In this scheme, the aperture of first hole section is less than the aperture of second hole section to through the loss of pressure of sudden expansion main ignition hole, and the increase of main ignition hole area, reduce the gas velocity of flow, and then improve the effect of igniteing.

Preferably, the inner ring fire cover further comprises auxiliary ignition holes, the auxiliary ignition holes are arranged on two sides and above the main ignition hole, and the auxiliary ignition holes are communicated with the gas mixing chamber;

and/or the lower cover can be provided with a gap communicated with the gas mixing chamber between the lower layer brim and the upper end of the ignition groove, so that the concentration of the fuel gas is improved.

Preferably, the side surface of the upper cover protrudes outwards to form an upper brim, and the side surface of the upper brim is arranged in a protruding manner relative to the side surface of the lower brim.

In this scheme, relative setting about upper brim of a hat and the lower floor's brim of a hat carries out double-deck protection for ignition needle, main ignition hole and assistance ignition hole.

A gas burner comprising an inner ring fire cover as described in any one of the above.

On the basis of the common knowledge in the field, the above preferred conditions can be combined at will to obtain the preferred embodiments of the present invention.

The utility model discloses an actively advance the effect and lie in:

the utility model discloses in, cover the structure that sets up inner ring fire into upper cover and lower cover to set up the steady flame passageway between upper cover and lower cover and realize carrying out steady flame to flame. When the gas circulates in the flame stabilizing channel, the speed of the airflow is reduced under the action of the blocking ribs, and the punctiform gas flowing out of the flame stabilizing holes is fully mixed at the first flame stabilizing groove, so that the flame stabilizing effect is improved. Additionally, the utility model discloses still block that the overflow liquid gets into and blocks up steady flame hole through blockking the muscle and mixing the gas chamber, improved and prevented stifled effect.

Drawings

Fig. 1 is a cross-sectional view of an inner ring fire cover according to an embodiment of the present invention;

fig. 2 is a schematic view of an upper cover according to an embodiment of the present invention;

fig. 3 is a schematic view of a lower cover according to an embodiment of the present invention;

fig. 4 is a cross-sectional view of an inner ring fire cover according to an embodiment of the present invention;

fig. 5 is a schematic structural view of an inner ring fire cover according to an embodiment of the present invention;

fig. 6 is a schematic structural view of an inner ring fire cover according to an embodiment of the present invention;

fig. 7 is a cross-sectional view of an inner ring fire cover according to an embodiment of the present invention;

fig. 8 is a schematic structural view of an inner ring fire cover according to an embodiment of the present invention;

fig. 9 is a schematic structural view of an inner ring fire cover according to an embodiment of the present invention.

Description of reference numerals:

inner ring fire lid 100

Lower cover 1

Gas mixing chamber 11

Fire hole 12

Flame stabilizing hole 13

Gas mixing chamber 14

Locating slot 15

Drainage groove 16

Drainage side plate 161

Drainage bottom plate 162

Fire protection hole 17

First fire-holding hole 171

Second fire protection hole 172

Second positioning rib 18

First side portion 19

Second side portion 110

A third flame holding groove 111

Ignition slot 112

Lower brim 113

Main ignition hole 114

First bore section 1141

Second bore section 1142

Auxiliary ignition hole 115

Gap 116

Third side 117

Fourth side portion 118

Upper cover 2

First flame holding groove 21

The second flame holding groove 22

Stopping rib 23

Flame holding channel 24

Opening 25

Tray 26

Lower retainer 261

Upper retainer ring 262

First positioning rib 27

Overflow orifice 28

Upper guide surface 29

The upper visor 210

Detailed Description

The present invention is further illustrated by the following examples, but is not intended to be limited thereby within the scope of the following examples.

Please refer to fig. 1-9 for understanding. The embodiment of the utility model provides an inner ring fire lid for gas-cooker, including lower cover 1 and upper cover 2, wherein upper cover 2 detachable connects on lower cover 1.

The lower cover 1 is provided with a gas mixing chamber 11, a fire hole 12, a flame stabilizing hole 13 and a gas mixing chamber 14. The opening of the gas mixing chamber 11 faces downwards and is used for being communicated with a gas source; the gas in the gas mixing chamber 11 is mixed with air to facilitate direct combustion. The fire holes 12 are arranged around the gas mixing chamber 11 and communicated with the gas mixing chamber, the fire holes 12 are positioned at the side part of the lower cover 1, and the gas flows out from the gas mixing chamber 11 through the fire holes 12. A plurality of flame stabilizing holes 13 are formed in the upper end surface of the lower cover 1 in a downward hole mode, the flame stabilizing holes 13 are through holes which are communicated up and down, and the lower end of each flame stabilizing hole is communicated with the gas mixing chamber 11; the flame stabilizing holes 13 are arranged at intervals around the center of the lower cover 1, and one or more circles of flame stabilizing holes 13 are arranged, so that the flame stabilizing effect is improved through the angle of uniformity; the hole diameter of the flame stabilizing hole 13 may be smaller than that of the fire hole 12 to control the amount of gas flowing out of the flame stabilizing hole 13 to be smaller than that of the gas flowing out of the fire hole 12. The upper end surface of the lower cover 1 is downwards sunken to form the gas mixing cavity 14, namely the gas mixing cavity 14 is in a sunken groove shape, the gas mixing cavity 14 is arranged around the flame stabilizing hole 13, the gas mixing cavity 14 is positioned at the periphery of the flame stabilizing hole 13, and gas flowing out from the flame stabilizing hole 13 flows to the fire hole 12 on the side surface of the lower cover 1 through the gas mixing cavity 14.

The upper cover 2 is provided with a blocking rib 23 protruding downwards, the upper cover 2 covers the lower cover 1, the blocking rib 23 is inserted into the gas mixing cavity 14 and keeps a distance from any wall surface of the gas mixing cavity 14, and therefore gas can circulate along the wall surface of the gas mixing cavity 14. Form between the up end of upper cover 2 and lower cover 1 and be located respectively and block in the muscle 23, the first flame stabilizing groove 21 and the second flame stabilizing groove 22 in the outside, the lower extreme of first flame stabilizing groove 21 is via the mixed gas chamber 11 of flame stabilization hole 13 intercommunication, the outside of first flame stabilizing groove 21 and the inboard of second flame stabilizing groove 22 are via blocking the muscle 23 and mixing the space intercommunication between the gas chamber 14, the outside of second flame stabilizing groove 22 is open, directly communicate the outside air of inner ring fire lid 100 promptly. The flame stabilizing hole 13, the first flame stabilizing slot 21, the gas mixing cavity 14 and the second flame stabilizing slot 22 are communicated in sequence to form a flame stabilizing channel 24, and the gas enters the flame stabilizing channel 24 from the gas mixing chamber 11 and flows to the outside from the side surface of the inner ring fire cover 100, so that the gas is supplemented to the vicinity of the fire hole 12, and the flame is prevented from generating flame escaping.

In the embodiment of the present invention, the inner ring fire cover 100 is set to the structure of the upper cover 2 and the lower cover 1, and the flame stabilizing channel 24 is set between the upper cover 2 and the lower cover 1 to stabilize flame. In the use process, part of the gas in the gas mixing chamber 11 flows out through the fire holes 12 and generates flame on the side surface of the lower cover 1, and part of the gas in the gas mixing chamber 11 flows to the side surface of the inner ring fire cover 100 through the flame stabilizing channel 24; the gas generates a winding suction force around the inner ring fire cover 100 in the combustion process of the gas at the fire hole 12, and part of the gas in the gas mixing chamber 11 can be automatically supplemented to the vicinity of the fire hole 12 from the flame stabilizing channel 24 under the action of the winding suction force; when the gas circulates in the flame stabilizing channel 24, the gas flow firstly enters the first flame stabilizing groove 21 through the flame stabilizing hole 13 and collides with the lower surface of the upper cover 2, then collides with the blocking rib 23 and passes through the gap between the blocking rib 23 and the gas mixing cavity 14 to enter the second flame stabilizing groove 22, and then further flows to the vicinity of the fire hole 12, so that the flowing speed of the gas from the flame stabilizing groove is reduced, the punctiform gas flowing out from the flame stabilizing hole 13 is finally fully mixed at the first flame stabilizing groove 21, and the flame stabilizing effect is improved. The embodiment of the utility model not only improves the flame stabilizing effect, but also can block the overflow liquid from entering and blocking the flame stabilizing hole 13 through the blocking rib 23 and the air mixing cavity 14, thereby having the anti-blocking effect; and, also through the upper cover 2 and lower cover 1 that can dismantle and set up, has improved the convenience of tearing open, adorning, when the overflow is serious and enter the gas mixing chamber 14, can dismantle upper cover 2 and clear up.

In the embodiment of the present invention, the lower cover 1 can adopt a metal component which is approximately a barrel-shaped and is reversely buckled on the whole, the hollow part of the lower cover is the air mixing chamber 11, each fire hole 12 is arranged on the side wall, the upper end is provided with a flame stabilizing hole 13, and the upper end is covered with the upper cover 2. The respective portions of the lower cover 1 may be integrally formed. The upper cover 2 may be a metal member having a substantially disk shape as a whole, and portions of the upper cover 2 may be integrally formed.

The embodiment of the utility model provides an in, each peripheral of flame stabilizing hole 13 can set up a mixed gas chamber 14, and mixed gas chamber 14 can be the annular or have the arc of opening 25, correspondingly, blocks muscle 23, first flame stabilizing groove 21 and second flame stabilizing groove 22 and be the annular or have the arc of opening 25 to the mixing of the punctiform gas that flows through each flame stabilizing hole 13 is more even, and the flame stabilizing effect further promotes. Fig. 2-3 illustrate an embodiment in which the air mixing chamber 14, the blocking rib 23, the first flame holding groove 21, and the second flame holding groove 22 are all arc-shaped structures having notches 25, and the notches 25 correspond up and down after assembly.

In the embodiment of the utility model, as shown in fig. 1, the surface that corresponds with first flame stabilizing groove 21 and second flame stabilizing groove 22 on the lower cover 1 is from being close to the central position of lower cover 1 and to keeping away from the position downward sloping gradually at lower cover 1 center to when the overflow is serious and get into first flame stabilizing groove 21 or second flame stabilizing groove 22 in, the surface of lower cover 1 plays certain guide effect to the overflow, promotes the discharge efficiency of overflow.

In the embodiment of the utility model, as shown in fig. 1, each fire hole 12 slope sets up, and the one end that is located on the outer wall of lower cover 1 is higher than the one end that is located on the 1 internal face of lower cover to form the guide effect to the flow direction of gas, and then make flame have the trend of upwards extending, improved the combustion effect from this.

The embodiment of the utility model provides an in, upper cover 2 includes and can dismantle the disk body 26 of being connected with lower cover 1, blocks muscle 23 and locates the lower surface of disk body 26, both integrated into one piece, forms above-mentioned first flame stabilizing groove 21 and above-mentioned second flame stabilizing groove 22 between the lower surface of disk body 26 and the up end of lower cover 1.

The periphery of the tray body 26 may be protruded relative to the side surface of the lower cover 1, so as to shield the lower cover 1 from the overflow, and prevent the overflow from entering the fire hole 12 or the second flame holding groove 22, for example, the periphery of the tray body 26 is protruded downwards to form a lower retaining ring 261, the lower retaining ring 261 is located at the outer side of the second flame holding groove 22, and indeed, the lower retaining ring 261 not only has the function of blocking the overflow, but also can block the gas flowing out of the second flame holding groove 22, and change the flow direction of the gas, so as to make the gas flow towards the fire hole 12 below. The outer wall surface and the inner wall surface of the lower baffle ring 261 can be obliquely arranged, for example, the outer wall surface and the inner wall surface are gradually extended from top to bottom in the direction away from the center of the tray body 26, so that better guiding effect is generated on the overflowing liquid and the fuel gas. In addition, the lower baffle ring 261 can be provided with a notch corresponding to the fire hole 12, so that the flame can be abducted, and the combustion effect can be improved.

The periphery of the tray 26 may also be upwardly convex to form an upper retaining ring 262, and the upper retaining ring 262 gradually extends away from the tray 26 from the lower end to the upper end to better guide the overflow.

In the embodiment of the present invention, the upper cover 2 further has a first positioning rib 27 protruding downwards, the lower cover 1 has a positioning groove 15 with an opening facing upwards and located inside the first flame stabilizing groove 21, and the first positioning rib 27 is inserted into the positioning groove 15 and is mutually limited on the neck of the upper cover 2. Wherein, the first positioning rib 27 is arranged on the lower surface of the tray body 26 and is positioned at the inner side of the blocking rib 23. The outer wall surface of the one or more first positioning ribs 27 can be attached to the inner wall surface of the positioning groove 15, and mutual limiting of the upper cover 2 and the lower cover 1 in the radial direction is realized. The lower end of the first positioning rib 27 can abut against the positioning slot 15, and the upper surface of the positioning slot 15 can also abut against the tray body 26.

The embodiment of the utility model provides an in, upper cover 2 still has the overflow hole 28 of intercommunication constant head tank 15, and lower cover 1 still has the drainage groove 16 of locating constant head tank 15 side, and drainage groove 16 is arranged in leading the outside of outer loop fire lid with the discharge in constant head tank 15. Wherein the overflow hole 28 is located at the center of the tray 26 for guiding the overflowing liquid in the tray 26 into the positioning slot 15. One end of the drainage groove 16 is connected with the side wall of the positioning groove 15 and is communicated with the positioning groove at the gap 25 of the positioning groove 15, and the other end is positioned on the outer surface of the lower cover 1 or extends out of the outer surface of the lower cover 1, so that the overflowing liquid in the positioning groove 15 is guided out.

Further, the upper end of the upper cover 2 has an upper guide surface 29 for guiding the overflowing liquid toward the overflow hole 28; specifically, the upper guide surface 29 is an upper surface of the tray body 26, and the upper guide surface 29 is gradually inclined downward from the outside to the inside so that the overflowing liquid automatically flows to the overflow hole 28, thereby improving drainage effect and efficiency.

The bottom surface of the positioning groove 15 gradually protrudes upwards from the periphery to the center to form a lower guide surface, namely, the middle of the lower guide surface is high, and the periphery is low, so that overflowing liquid can be quickly dispersed to the periphery of the positioning groove 15 and then is guided out through the drainage groove 16.

The bottom surface of the drainage groove 16 is gradually inclined downward from one end connected with the positioning groove 15 to the other end, thereby improving the drainage effect and efficiency. The width of the drainage groove 16 is gradually increased from one end connected to the positioning groove 15 to the other end, so that the flow rate of the overflowing liquid is gradually reduced, and the overflowing liquid is prevented from splashing or being sprayed outwards to other components of the gas stove after dripping due to the fact that the overflowing liquid falls from the drainage groove 16 at an excessively high speed.

The embodiment of the utility model provides an in, the one end of drainage groove 16 is along the radial outside protrusion of lower cover 1 and form the drainage curb plate 161 that sets up in pairs and connect the drainage bottom plate 162 of two drainage curb plates 161, and the lower extreme of drainage curb plate 161 stretches out downwards for drainage bottom plate 162, and the lower extreme of two drainage curb plates 161 can become "eight" word form. The drainage grooves 16 protruding outwards enable the guided spilled liquid to be far away from the inner ring fire cover 100, particularly from the flame stabilizing holes 13 and the fire holes 12, so that the anti-blocking effect is achieved, and the flame stabilizing and fire protecting effects of the inner ring fire cover 100 are guaranteed. The drainage groove 16 can also be used as an anti-overflow brim of a thermocouple of a gas stove. The side wall of the lower cover 1 is also provided with fire protection holes 17 communicated with the air mixing chamber 11, and the fire protection holes 17 are positioned below the drainage bottom plate 162 and between the lower ends of the two drainage side plates 161. The drainage grooves 16 protruding outwards enclose a semi-enclosed fire protection space to prevent overflowing liquid from flowing to the fire protection holes 17, so that the fire protection holes 17 are prevented from being blocked.

The upper surface of the positioning slot 15 is higher than the flame stabilizing hole 13. The lower cover 1 is provided with a second positioning rib 18 protruding upwards, the position of the second positioning rib 18 forms the upper end of the positioning groove 15, and the position of the second positioning rib corresponding to the drainage groove 16 is provided with a notch 25. The second location muscle 18 is adjacent to first flame stabilizing slot 21, also can understand that the medial surface of first flame stabilizing slot 21 is located second location muscle 18, and second location muscle 18 blocks the gas from the inboard, makes the gas flow to second flame stabilizing slot 22 one side better, and simultaneously, first location muscle 27 and constant head tank 15 that has second location muscle 18 have formed labyrinth in other words, have increased the degree of difficulty that the overflow in the constant head tank 15 spills over to flame stabilizing hole 13 department, especially can improve anti-blocking performance at a fender degree when the overflow is serious.

In the embodiment of the utility model, the lower cover 1 is provided with an upper layer fire hole 12 and a lower layer fire hole 12; the upper fire holes 12 and the lower fire holes 12 are vertically staggered from each other, so that the uniformity of flames around the inner ring fire cover 100 is improved. The lower cover 1 has a first side portion 19 and a second side portion 110, one end of the upper fire hole 12 is located on the outer wall surface of the first side portion 19, and one end of the lower fire hole 12 is located on the outer wall surface of the second side portion 110. Specifically, the first side portion 19 and the second side portion 110 may be annular or arc-shaped with a notch, and the first side portion 19 and the second side portion 110 are spaced up and down. In addition, although one end of the fire hole 12 of the upper layer is located on the first side portion 19, the other end may extend downward to a height corresponding to the second side portion 110 or a position lower than the second side portion 110. The present embodiment improves the combustion effect by providing the upper and lower fire holes 12.

A third flame holding groove 111 is formed between the lower end surface of the first side portion 19 and the upper end surface of the second side portion 110, and the third flame holding groove 111 communicates the flame holes 12 of the upper layers and the outside of the inner ring flame cover 100. Specifically, the third flame holding groove 111 may be an annular or notched arc structure, the third flame holding groove is communicated with the upper flame hole 12 due to partial overlapping, the inner side wall of the third flame holding groove 111 is the wall surface of the lower cover 1, and a through hole may be provided at a partial position of the inner side wall of the third flame holding groove 111 for communicating with the gas mixing chamber 11, so as to further enhance the flame holding effect; the outside of the third flame holding groove 111 communicates with the outside air. In this embodiment, a small amount of fuel gas in the upper fire hole 12 may flow out through the third flame stabilizing slot 111 and be supplied to the root of the upper or lower fire hole 12, thereby further improving the flame stabilizing effect.

The lower surface of the first side portion 19 and the upper surface of the second side portion 110 are extended downward from the inside to the outside, so that when the overflowing liquid flows to the third flame holding groove 111 seriously, the lower surface of the first side portion 19 and the upper surface of the second side portion 110 have a guiding effect on the overflowing liquid, preventing the overflowing liquid from blocking the place where the third flame holding groove 111 communicates with the fire hole 12.

In the embodiment of the present invention, the one end of the drainage groove 16 extends radially outward from the outer wall surface of the first side portion 19 along the lower cover 1, and forms the fire protection space surrounded by the upper end and the two sides, and the fire protection space is surrounded by the lower ends of the drainage bottom plate 162 and the drainage side plate 161. The lower cover 1 further has a first fire-keeping hole 171 and a second fire-keeping hole 172 both communicating with the gas mixing chamber 11, one end of the first fire-keeping hole 171 is located on the outer wall surface of the first side portion 19, and each first fire-keeping hole 171 is at least partially located in the fire-keeping space, thereby improving the fire-keeping effect. One end of the second fire protection hole 172 is located on the upper end surface of the second side portion 110, and in the vertical direction, the second fire protection hole 172 is also located below the drainage bottom plate 162, and the second fire protection hole 172 and the gas flowing out of the first fire protection hole 171 are in opposite impact, so that the flow rate of the gas is reduced, and the fire protection effect is improved. In addition, the second fire protection hole 172 is communicated with the third flame stabilizing groove 111, and can generate certain hedging with the third flame stabilizing groove 111 to reduce the flow speed, so that the fire protection effect is further improved.

The first fire protection hole 171 may be inclined downward gradually from the inside to the outside, and the second fire protection hole 172 is inclined upward gradually from the inside to the outside, so that the gas flowing out through the first fire protection hole 171 and the second fire protection hole 172 may be collided at the tip of the thermocouple, increasing the gas concentration, and reducing the flow rate.

The embodiment of the utility model provides an in, not only the outward flange protrusion of upper cover 2 in the outer wall of first lateral part 19, the outer wall protrusion of first lateral part 19 in the outer wall of second lateral part 110 moreover to form layer upon layer progressive form, the last layer reduces fire hole 12, steady flame hole 13 and the risk that the fire hole 17 was plugged up as the anti-overflow structure of one deck down.

Further, the lower cover 1 further includes a third side 117 and a fourth side 118, and the third side 117 and the fourth side 118 may adopt a structure disposed around the air mixing chamber 11; the third side 117 is located between the second side 110 and the fourth side 118, the outer wall of the second side 110 protrudes from the outer wall of the third side 117, the lower end of the second side 110 may gradually transition to the third side 117 through a slope, and the outer wall of the third side 117 protrudes from the outer surface of the fourth side 118, so that when the overflow is serious, the overflow can be further guided layer by layer. In addition, the entire lower cover 1 may be integrally formed, and the first side portion 19, the second side portion 110, the third side portion 117, and the fourth side portion 118 are partial structures of the side surface of the lower cover 1.

The embodiment of the utility model provides an in, the lateral wall of lower cover 1 is inwards sunken to form at the ignition groove 112 that vertical direction extends, and ignition groove 112 encloses into a space that partly surrounds for place the ignition needle of gas-cooker. The side of the lower cover 1 protrudes outward to form a lower brim 113, the lower brim 113 is located above the ignition slot 112, the lower surface of the lower brim 113 protrudes downward to form a tip corresponding to the ignition needle, and the lower brim 113 prevents the overflow from flowing to the ignition slot 112, thereby preventing the hole of the ignition needle from being blocked.

The embodiment of the utility model provides an in, lower cover 1 has the main ignition hole 114 of intercommunication gas mixing chamber 11 in ignition groove 112 department, main ignition hole 114 is including first hole section 1141 and second hole section 1142 that connect in order, first hole section 1141 intercommunication gas mixing chamber 11, second hole section 1142 intercommunication ignition groove 112, first hole section 1141's aperture is less than second hole section 1142's aperture, thereby through the loss of pressure of sudden expansion main ignition hole 114, and the increase of main ignition hole 114 area, reduce the gas velocity of flow, and then improve the ignition effect.

The inner ring fire cover 100 further comprises auxiliary ignition holes 115 arranged around the main ignition hole 114 at intervals, and the auxiliary ignition holes 115 are communicated with the gas mixing chamber 11. The secondary ignition hole 115 may have a smaller hole diameter than the primary ignition hole 114. The top and both sides of main ignition hole 114 can respectively set up two and assist ignition hole 115, and the gas that the supplementary ignition hole 115 of both sides flows is offset each other, has reduced the gas velocity of flow of main ignition hole 114 department, and each is assisted ignition hole 115 and has provided sufficient gas and increased gas concentration for the ignition needle from a plurality of directions to ignition efficiency has been improved.

In addition, the lower cover 1 can have a gap 116 communicated with the air mixing chamber 11 between the lower brim 113 and the upper end of the ignition slot 112, and during ignition, gas can flow out of the gap 116, so that sufficient gas is further provided for the ignition needle, and the ignition effect is improved.

The side of the upper cover 2 protrudes outward to form the upper visor 210, and the side of the upper visor 210 protrudes relative to the side of the lower visor 113, which can also be understood as the horizontal projection of the upper visor 210 completely covering the horizontal projection of the lower visor 113. The overflow is further blocked by the upper brim 210, and the anti-blocking effect is improved.

The embodiment of the utility model provides a gas-cooker has still been provided, and the gas-cooker has included interior ring fire lid 100 as above arbitrary. The gas stove may have only one fire cover arranged at the central position, namely, the inner ring fire cover 100, or may have two fire covers, wherein the central position is the inner ring fire cover 100, an outer ring fire cover is additionally arranged at the periphery of the inner ring fire cover 100, and the outer ring fire cover may be implemented by adopting the prior art.

Although specific embodiments of the present invention have been described above, it will be understood 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 the principles of the present invention, and these changes and modifications are within the scope of the present invention.

Claims

1. The utility model provides an inner ring fire lid for gas-cooker which characterized in that includes:

2. The inner ring fire cover as claimed in claim 1, wherein the upper cover includes a plate body detachably connected to the lower cover, the blocking rib is provided on the plate body, and the first flame holding groove and the second flame holding groove are formed between a lower surface of the plate body and an upper end surface of the lower cover.

3. The inner ring fire cover of claim 2,

a lower retaining ring which protrudes downwards is arranged on the periphery of the disc body and is positioned on the outer side of the second flame stabilizing groove;

and/or the periphery of the tray body is provided with an upward convex upper retaining ring, and the upper retaining ring gradually extends from the lower end to the upper end in the direction away from the tray body.

4. The inner ring fire cover as claimed in claim 1, wherein the upper cover further has a first positioning rib protruding downward, the lower cover has a positioning groove with an upward opening and located inside the first flame stabilizing groove, and the first positioning rib is inserted into the positioning groove and radially and mutually limited with the positioning groove.

5. The inner ring fire cover of claim 4, wherein the upper cover further has an overflow hole communicating with the positioning groove, and the lower cover further has a drainage groove provided at a side of the positioning groove for guiding the overflow in the positioning groove to an outside of the inner ring fire cover.

6. The inner ring fire cover as claimed in claim 5, wherein one end of the drainage groove protrudes outward in the radial direction of the lower cover and forms a pair of drainage side plates, and a drainage bottom plate connecting the two drainage side plates, and the lower end of the drainage side plate protrudes downward relative to the drainage bottom plate;

7. The inner ring fire cover of claim 5,

the upper end of the upper cover is provided with an upper guide surface for guiding overflowing liquid to the overflowing hole;

and/or the bottom surface of the positioning groove gradually protrudes upwards from the periphery to the center to form a lower guide surface;

and/or the bottom surface of the drainage groove is gradually inclined downwards from one end connected with the positioning groove to the other end;

and/or the width of the drainage groove is gradually increased from one end connected with the positioning groove to the other end;

and/or the surfaces of the lower cover corresponding to the first flame holding grooves and the second flame holding grooves are gradually inclined downwards from a position close to the center of the lower cover to a position far away from the center of the lower cover;

and/or the upper surface of the positioning groove is higher than the flame stabilizing hole;

8. The inner ring fire cover of claim 1, wherein the lower cover has upper and lower fire holes; the lower cover is provided with a first side part and a second side part, one end of the fire hole on the upper layer is located on the outer wall surface of the first side part, and one end of the fire hole on the lower layer is located on the outer wall surface of the second side part.

9. The inner ring fire cover of claim 8, wherein a third flame holding groove is formed between the lower end surface of the first side portion and the upper end surface of the second side portion, and the third flame holding groove communicates the fire holes of the upper layers and the outside of the inner ring fire cover.

10. The inner ring fire cover as claimed in claim 9, wherein the lower cover has a drainage groove, one end of which extends outward in a radial direction of the lower cover from the outer wall surface of the first side portion and forms an enclosed fire-protecting space at the upper end and both sides; the lower cover is further provided with a first fire protection hole and a second fire protection hole which are communicated with the gas mixing chamber, one end of each first fire protection hole is located on the outer wall surface of the first side portion, at least part of each first fire protection hole is located in the fire protection space, and one end of each second fire protection hole is located on the upper end surface of the second side portion.

11. The inner ring fire cover of claim 8, wherein:

the fire holes on the upper layer and the fire holes on the lower layer are staggered in the vertical direction;

and/or the lower surface of the first side part and the upper surface of the second side part gradually extend downwards from inside to outside.

12. The inner ring fire cover of claim 8, wherein an outer edge of the upper cover protrudes from an outer wall surface of the first side portion, and the outer wall surface of the first side portion protrudes from an outer wall surface of the second side portion;

and/or the lower cover further comprises a third side part and a fourth side part, the third side part is positioned between the second side part and the fourth side part, the outer wall surface of the second side part protrudes out of the outer wall surface of the third side part, and the outer wall surface of the third side part protrudes out of the outer surface of the fourth side part.

13. The inner ring fire cover as claimed in claim 1, wherein the side wall of the lower cover is inwardly recessed to form a vertically extending ignition slot, and the side surface of the lower cover is outwardly protruded to form a lower visor located above the ignition slot.

14. The inner ring fire cover as claimed in claim 13, wherein the lower cover has a main fire hole communicating with the gas mixing chamber at the fire hole, the main fire hole includes a first hole section and a second hole section connected in sequence, the first hole section communicates with the gas mixing chamber, the second hole section communicates with the fire hole, and the first hole section has a smaller diameter than the second hole section.

15. The inner ring fire cover of claim 14, wherein the inner ring fire cover further comprises auxiliary ignition holes, the auxiliary ignition holes are disposed on both sides and above the main ignition hole, and the auxiliary ignition holes communicate with the gas mixing chamber;

and/or a gap communicated with the air mixing chamber is formed between the lower-layer brim and the upper end of the ignition groove.

16. The inner ring fire cover of claim 13, wherein the side of the upper cover is outwardly protruded to form an upper visor, and the side of the upper visor is protruded with respect to the side of the lower visor.

17. A gas burner comprising an inner ring flame cover according to any of claims 1 to 16.