Combustor and gas stove

Abstract

The utility model discloses a burner and a gas stove, the burner comprises an inner fire cover, the inner fire cover comprises an inner fire cover body and a plurality of inner fire holes arranged on the inner fire cover body, the lower side of the inner fire cover body is provided with a first inner ring fire gas cavity communicated with the inner fire holes; the outer fire cover comprises an outer fire cover body and a guide ring arranged on the lower side of the periphery of the outer fire cover body, a plurality of outer fire holes are formed in the periphery of the outer fire cover body, and an outer ring fuel gas mixing cavity extending in the horizontal direction and a first outer ring fuel gas cavity located on the inner side of the outer ring fuel gas mixing cavity are formed between the outer fire cover body and the guide ring; the first outer ring fire fuel gas cavity is communicated with the outer ring fuel gas mixing cavity, an opening of the first outer ring fire fuel gas cavity faces downwards, the outer ring fuel gas mixing cavity is communicated with the outer fire hole, a second inner ring fire fuel gas cavity is formed in the middle of the outer fire cover body, and the inner fire cover body is installed on the side wall of the second inner ring fire fuel gas cavity. The utility model provides a burner which is simple in structure and capable of improving mixing uniformity between outer ring gas and secondary air.

Description

Technical Field

[0001] This utility model relates to the field of kitchen appliance technology, and in particular to a burner and a gas stove. Background Technology

[0002] To improve the combustion efficiency of gas burners, it is necessary to provide sufficient primary and secondary air, and to uniformly mix the primary air with the gas. Existing burners, in order to improve the mixing uniformity of primary air and gas, incorporate large mixing chambers, resulting in a large burner size, which hinders product miniaturization and makes it difficult to meet user needs.

[0003] Therefore, there is an urgent need for a burner to solve the above problems. Utility Model Content

[0004] The present invention aims to at least partially solve one of the problems existing in the prior art. To this end, the present invention proposes a burner with a simple structure that can improve the mixing uniformity between the outer ring gas and the secondary air.

[0005] The above objectives are achieved through the following technical solutions:

[0006] A burner, comprising:

[0007] The inner flame cover includes an inner flame cover body and a plurality of inner flame holes opened on the inner flame cover body. A first inner annular combustion chamber communicating with the inner flame holes is opened on the lower side of the inner flame cover body.

[0008] An outer flame cap includes an outer flame cap body and a guide ring disposed on the lower periphery of the outer flame cap body. The outer flame cap body has multiple outer flame holes on its periphery. An outer ring gas-fuel mixture chamber extending horizontally is formed between the outer flame cap body and the guide ring, and a first outer ring gas-fuel mixture chamber located inside the outer ring gas-fuel mixture chamber. The first outer ring gas-fuel mixture chamber is connected to the outer ring gas-fuel mixture chamber and has its opening facing downward. The outer ring gas-fuel mixture chamber is connected to the outer flame holes. A second inner ring gas-fuel mixture chamber is formed in the middle of the outer flame cap body, and the inner flame cap body is installed on the side wall of the second inner ring gas-fuel mixture chamber.

[0009] The burner head includes a burner head body, which has a third inner ring combustion chamber and a second outer ring combustion chamber sequentially formed from the inside to the outside. The third inner ring combustion chamber, the second inner ring combustion chamber and the first inner ring combustion chamber are connected sequentially from bottom to top to form an inner ring combustion mixing channel. The second outer ring combustion chamber and the first outer ring combustion chamber are connected sequentially from bottom to top to form an outer ring combustion mixing channel.

[0010] Optionally, the guide ring includes a guide ring body extending horizontally in the smoke direction, and a connecting portion extending vertically downward is provided on the inner side of the guide ring body. The connecting portion is located on the inner side of the outer wall of the second outer ring combustion chamber and abuts against the outer wall of the chamber. The guide ring is located on the upper side of the outer wall of the chamber and abuts against the outer wall of the chamber.

[0011] Optionally, the outer flame cover body includes a cover body, the second inner ring flame gas chamber is opened in the middle of the cover body, the outer flame hole is opened on the outer side wall of the cover body, the lower end of the side wall of the second inner ring flame gas chamber is provided with a first step, a second step and a third step connected in sequence from top to bottom, and the upper end of the inner side wall of the second outer ring flame gas chamber is provided with a fourth step, a fifth step and a sixth step connected in sequence from top to bottom. The first step, the third step, the fourth step and the sixth step are all extended in the horizontal direction, the second step and the fifth step are all extended in the vertical direction, the first step is located on the upper side of the fourth step and abuts against the fourth step, the second step is located on the inner side of the fifth step and abuts against the fifth step, and the third step is located on the upper side of the sixth step.

[0012] Optionally, a first liquid-holding tank is provided on the upper side of the cover. A fire transmission hole and a liquid guiding groove are provided on the outer side wall of the first liquid-holding tank. The fire transmission hole and the liquid guiding groove are both connected to the outer side of the first liquid-holding tank and the cover. The lowest point of the fire transmission hole is higher than the lowest point of the liquid guiding groove.

[0013] Optionally, the cover has at least two fire-resistant zones on its periphery, the external fire hole is located between two adjacent fire-resistant zones, and the fire transmission hole and the liquid guiding groove are respectively located in different fire-resistant zones.

[0014] Optionally, it also includes screws and a liquid receiving tray sleeved on the outside of the burner body. The liquid receiving tray is installed on the panel of the gas stove by the screws, which are located on the lower side of the guide ring body.

[0015] Optionally, the outer side of the guide ring body is provided with a first blocking portion extending downward, and the screw is located inside the first blocking portion.

[0016] Optionally, the liquid receiving tray includes a liquid receiving tray body and a liquid-proof protrusion disposed at the inner end of the liquid receiving tray body. The liquid-proof protrusion is disposed above the upper side of the liquid receiving tray body, and the screw is installed on the liquid-proof protrusion.

[0017] Optionally, it also includes a pot support, which includes a pot support body and a support rod disposed on the pot support body. The support rod is disposed through the upper and lower sides of the pot support body. A slot is provided on the upper side of the liquid receiving tray body, and the lower end of the support rod is engaged in the slot.

[0018] Another aspect of this utility model provides a gas stove, including a bottom shell and a panel covering the upper side of the bottom shell, and also including the aforementioned burner, which is installed in the bottom shell and extends from the upper side of the panel.

[0019] Compared with the prior art, the present invention has at least the following beneficial effects:

[0020] The burner provided by this utility model sets the outer flame cap as a separate outer flame cap body and guide ring, so as to form an outer ring gas mixing chamber extending in the horizontal direction between the outer flame cap body and the guide ring. This allows the outer ring gas to pass through the second outer ring gas chamber and the first outer ring gas chamber arranged in the vertical direction for mixing in sequence, and then enter the outer ring gas mixing chamber in the horizontal direction for further mixing. By changing the flow direction of the outer ring gas and secondary air, the uniformity of the mixing of gas and secondary air is improved, thereby improving the combustion efficiency of the outer ring flame and increasing the firepower of the outer ring flame. Attached Figure Description

[0021] Figure 1 This is a three-dimensional structural diagram of the gas stove provided by this utility model;

[0022] Figure 2 yes Figure 1 Top view;

[0023] Figure 3 yes Figure 2 Sectional view at point AA;

[0024] Figure 4 yes Figure 3 Enlarged view of point B in the middle;

[0025] Figure 5 yes Figure 1 Exploded view;

[0026] Figure 6 This is an exploded view of the outer burner cap of the gas stove provided by this utility model.

[0027] In the picture:

[0028] 1. Inner flame cap; 11. Inner flame cap body; 12. Inner flame hole; 13. Second liquid reservoir; 14. First inner ring flame combustion chamber;

[0029] 2. Outer flame cap; 211. Outer flame cap body; 2111. Cap body; 2112. First step; 2113. Second step; 2114. Third step; 212. Guide ring; 2121. Guide ring body; 2122. Shielding part; 2123. Connecting part; 22. First liquid holding tank; 23. Fire avoidance zone; 24. Flame transmission hole; 25. Outer flame hole; 26. Liquid guiding tank; 27. Second inner ring combustion chamber; 28. Outer ring combustion mixing chamber;

[0030] 31. Burner head body; 32. Third inner ring combustion chamber; 33. Second outer ring combustion chamber; 331. Outer wall of the combustion chamber; 332. Inner wall of the combustion chamber;

[0031] 4. Liquid receiving tray; 41. Liquid receiving tray body; 42. Liquid-proof protrusion; 43. Slot;

[0032] 5. Pot support; 51. Pot support body; 52. Support rod;

[0033] 6. Screws;

[0034] 7. Panel;

[0035] 8. Ignition needle;

[0036] 9. Bottom shell. Detailed Implementation

[0037] The following embodiments illustrate the present invention, but the present invention is not limited to these embodiments. Modifications to the specific implementation of the present invention or equivalent substitutions for some technical features, without departing from the spirit of the present invention, should all be covered within the scope of the technical solution claimed by the present invention.

[0038] Please refer to Figures 1-6This utility model provides a burner, including an inner flame cover 1, an outer flame cover 2, and a burner head. The inner flame cover 1 includes an inner flame cover body 11 and a plurality of inner flame holes 12 formed on the inner flame cover body 11. A first inner ring combustion chamber 14 communicating with the inner flame holes 12 is formed on the lower side of the inner flame cover body 11. The outer flame cap 2 includes an outer flame cap body 211 and a guide ring 212 disposed on the lower periphery of the outer flame cap body 211. Multiple outer flame holes 25 are opened on the periphery of the outer flame cap body 211. An outer ring gas mixing chamber 28 extending in the horizontal direction and a first outer ring gas combustion chamber located inside the outer ring gas mixing chamber 28 are formed between the outer flame cap body 211 and the guide ring 212. The first outer ring gas combustion chamber is connected to the outer ring gas mixing chamber 28 and its opening is downward. The outer ring gas mixing chamber 28 is connected to the outer flame holes 25. A second inner ring gas combustion chamber 27 is opened in the middle of the outer flame cap body 211. The inner flame cap body 11 is installed on the side wall of the second inner ring gas combustion chamber 27. The burner head includes a burner head body 31. The burner head body 31 has a third inner ring combustion chamber 32 and a second outer ring combustion chamber 33 sequentially formed from the inside to the outside. The third inner ring combustion chamber 32, the second inner ring combustion chamber 27 and the first inner ring combustion chamber 14 are connected from bottom to top to form an inner ring combustion mixing channel. The second outer ring combustion chamber 33 and the first outer ring combustion chamber are connected from bottom to top to form an outer ring combustion mixing channel.

[0039] The burner provided by this utility model sets the outer flame cap 2 as a separate outer flame cap body 211 and guide ring 212, so that an outer ring gas mixing chamber 28 extending in the horizontal direction is formed between the outer flame cap body 211 and guide ring 212. This allows the outer ring gas to pass through the second outer ring gas chamber 33 and the first outer ring gas chamber arranged in the vertical direction for mixing in sequence, and then enter the outer ring gas mixing chamber 28 in the horizontal direction for further mixing. By changing the flow direction of the outer ring gas and secondary air, the uniformity of the mixing of gas and secondary air is improved, thereby improving the combustion efficiency of the outer ring flame and increasing the firepower of the outer ring flame.

[0040] Optionally, the guide ring 212 includes a guide ring body 2121 extending horizontally in the smoke direction. A connecting part 2123 extending vertically downward is provided on the inner side of the guide ring body 2121. The connecting part 2123 is located on the inner side of the outer wall 331 of the second outer ring combustion chamber 33 and abuts against the outer wall 331. The guide ring 212 is located on the upper side of the outer wall 331 and abuts against the outer wall 331. In this way, on the one hand, simple assembly between the guide ring 212 and the burner body 31 is achieved. On the other hand, since there are two abutment surfaces between the guide ring 212 and the burner body 31, the gas is not easy to leak out from between the guide ring 212 and the burner body 31.

[0041] Optionally, the outer flame cover body 211 includes a cover body 2111, a second inner ring flame gas chamber 27 is opened in the middle of the cover body 2111, and an outer flame hole 25 is opened on the outer side wall of the cover body 2111. The lower end of the side wall of the second inner ring flame gas chamber 27 is provided with a first step 2112, a second step 2113, and a third step 2114 connected sequentially from top to bottom. The upper end of the inner side wall 332 of the second outer ring flame gas chamber 33 is provided with a fourth step, a fifth step, and a sixth step connected sequentially from top to bottom. The first step 2112, the third step 2114, the fourth step, and the sixth step are all... Extending horizontally, the second step 2113 and the fifth step both extend vertically. The first step 2112 is located on the upper side of the fourth step and abuts against the fourth step. The second step 2113 is located on the inner side of the fifth step and abuts against the fifth step. The third step 2114 is located on the upper side of the sixth step. In this way, on the one hand, simple assembly between the outer flame cover body 211 and the burner head is achieved. On the other hand, since there are two abutment surfaces between the outer flame cover body 211 and the burner head body 31, the gas is not easy to leak out from between the outer flame cover body 211 and the burner head body 31.

[0042] Optionally, a first liquid-holding tank 22 is provided on the upper side of the cover 2111. A flame transmission hole 24 and a liquid guiding groove 26 are provided on the outer wall of the first liquid-holding tank 22. Both the flame transmission hole 24 and the liquid guiding groove 26 are connected to the outer side of the first liquid-holding tank 22 and the cover 2111. By providing the flame transmission hole 24, the inner ring flame can be transmitted to the outer ring flame hole through the flame transmission hole 24 to ignite the outer ring flame. By providing the liquid guiding groove 26, the overflow in the first liquid-holding tank 22 can flow out to the outside of the outer flame cover 2 through the liquid guiding groove 26. The lowest point of the flame transmission hole 24 is set higher than the lowest point of the liquid guiding groove 26 to prevent the overflow in the first liquid-holding tank 22 from flowing out to the outside of the outer flame cover 2 through the flame transmission hole 24.

[0043] Optionally, the cover 2111 has at least two fire-resistant zones 23 around its periphery, the outer fire hole 25 is located between two adjacent fire-resistant zones 23, and the fire transmission hole 24 and the liquid guiding groove 26 are respectively located in different fire-resistant zones 23 to facilitate fire transmission and liquid diversion.

[0044] On the other hand, the fire-avoiding zone 23 allows secondary air to enter the inner fire hole 12 through the outer ring fire during the normal combustion process of the burner, thereby providing secondary air for combustion of the inner ring fire, improving the combustion efficiency of the inner ring fire, and increasing the firepower of the inner ring fire.

[0045] Optionally, it also includes screws 6 and a liquid receiving tray 4 sleeved on the outside of the burner body 31. The liquid receiving tray 4 is installed on the panel 7 of the gas stove by screws 6. Screws 6 are located on the lower side of the guide ring body 2121, so that the guide ring body 2121 can block screws 6 and prevent overflow from dripping onto screws 6, causing screws 6 to rust, or overflow from flowing into the gas stove through the screw hole between screws 6 and the liquid receiving tray 4.

[0046] Optionally, a first shielding part 2122 extending downward is provided on the outer side of the guide ring body 2121, and the screw 6 is located on the inner side of the first shielding part 2122, so that the screw 6 can be further shielded by the first shielding part 2122 to prevent overflow from flowing onto the screw 6.

[0047] Optionally, the liquid receiving tray 4 includes a liquid receiving tray body 41 and a liquid-proof protrusion 42 disposed at the inner end of the liquid receiving tray body 41. The liquid-proof protrusion 42 is disposed above the upper side of the liquid receiving tray body 41, and the screw 6 is installed on the liquid-proof protrusion 42 so that the overflow liquid on the liquid receiving tray body 41 will not flow to the screw 6.

[0048] Optionally, it also includes a pot support 5, which includes a pot support body 51 and a support rod 52 disposed on the pot support body 51. The support rod 52 is disposed through the upper and lower sides of the pot support body 51. A slot 43 is provided on the upper side of the liquid receiving plate body 41, and the lower end of the support rod 52 is engaged in the slot 43, so that the pot support 5 can be fixed on the liquid receiving plate body 41.

[0049] Optionally, the inner flame hole 12 is opened on the periphery of the inner flame cover body 11, and a second liquid collection tank 13 is provided on the upper side of the inner flame cover body 11 to collect the overflow during the cooking process.

[0050] Optionally, it also includes an ignition needle 8, and a second shielding part 2122 is provided on the upper periphery of the inner flame hole 12. An ignition hole is also provided on the periphery of the inner flame cover body 11. The ignition hole is located on the lower side of the second shielding part 2122. The ignition needle 8 is installed on the burner body 31 and extends from the upper side of the outer flame cover body 211 to the outside of the ignition hole, so that the second shielding part 2122 can simultaneously shield the ignition needle 8 and the ignition hole to prevent overflow dripping onto the ignition needle 8 and the ignition hole.

[0051] Another aspect of this utility model provides a gas stove, including a bottom shell 9 and a panel 7 covering the upper side of the bottom shell 9, and also including the aforementioned burner, which is installed in the bottom shell 9 and extends from the upper side of the panel 7.

[0052] The above descriptions are merely some embodiments of this utility model. For those skilled in the art, various modifications and improvements can be made without departing from the inventive concept of this utility model, and all such modifications and improvements fall within the protection scope of this utility model.

Claims

1. A burner, characterized by The utility model relates to a gas stove, which comprises an inner fire cover (1) and an outer fire cover (2). The outer fire cover (2) comprises an outer fire cover body (211) and a guide ring (212) arranged on the lower side of the peripheral part of the outer fire cover body (211). The stove head comprises a stove head body (31) which is sequentially provided with a third inner ring fire gas cavity (32) and a second outer ring fire gas cavity (33) from inside to outside. The guide ring (212) comprises a guide ring body (2121) which extends in the horizontal direction of smoke.

2. The burner of claim 1, wherein The guide ring body (2121) is provided with a connecting part (2123) which extends vertically downward. The connecting part (2123) is arranged on the inner side of the gas cavity outer side wall (331) of the second outer ring fire gas cavity (33) and abuts against the gas cavity outer side wall (331). The guide ring (212) is arranged on the upper side of the gas cavity outer side wall (331) and abuts against the gas cavity outer side wall (331).

3. The burner of claim 2, wherein The outer fire cover body (211) comprises a cover body (2111), the second inner ring fire gas cavity (27) is arranged in the middle of the cover body (2111), the outer fire hole (25) is arranged on the outer side wall of the cover body (2111), the lower end of the side wall of the second inner ring fire gas cavity (27) is sequentially provided with the first step (2112), the second step (2113) and the third step (2114) from top to bottom, the upper end of the gas cavity inner side wall (332) of the second outer ring fire gas cavity (33) is sequentially provided with the fourth step, the fifth step and the sixth step from top to bottom, the first step (2112), the third step (2114), the fourth step and the sixth step are all arranged in the horizontal direction, the second step (2113) and the fifth step are all arranged in the vertical direction, the first step (2112) is arranged on the upper side of the fourth step and abuts against the fourth step, the second step (2113) is arranged on the inner side of the fifth step and abuts against the fifth step, and the third step (2114) is arranged on the upper side of the sixth step.

4. The burner of claim 3, wherein The upper side of the cover body (2111) is provided with a first liquid containing groove (22), the outer side wall of the first liquid containing groove (22) is provided with a fire transmission hole (24) and a liquid guide groove (26), the fire transmission hole (24) and the liquid guide groove (26) are both arranged outside the cover body (2111) and communicate with the first liquid containing groove (22), and the lowest point of the fire transmission hole (24) is higher than the lowest point of the liquid guide groove (26).

5. The burner of claim 4, wherein The circumferential side of the cover body (2111) is provided with at least two fireproof areas (23), the outer fire hole (25) is arranged between two adjacent fireproof areas (23), and the fire transmission hole (24) and the liquid guide groove (26) are arranged at different fireproof areas (23) respectively.

6. Burner according to any of claims 2-5, characterized in that The liquid containing disc (4) is arranged on the panel (7) of the gas stove through the screw (6), and the screw (6) is located on the lower side of the guide ring body (2121).

7. The burner of claim 6, wherein The outer side of the guide ring body (2121) is provided with a first shielding part (2122) extending downward, and the screw (6) is located on the inner side of the first shielding part (2122).

8. The burner of claim 6, wherein The liquid containing disc (4) comprises a liquid containing disc body (41) and a liquid preventing protrusion (42) arranged at the inner end of the liquid containing disc body (41), the liquid preventing protrusion (42) is arranged higher than the upper side of the liquid containing disc body (41), and the screw (6) is arranged on the liquid preventing protrusion (42).

9. The burner of claim 8, wherein The pot support (5) comprises a pot support body (51) and a supporting rod (52) arranged on the pot support body (51), the supporting rod (52) is arranged through the upper side and the lower side of the pot support body (51), the upper side of the liquid receiving disc body (41) is provided with a clamping groove (43), and the lower end of the supporting rod (52) is clamped in the clamping groove (43).

10. A gas hob comprising a bottom casing (9) and a panel (7) arranged on the upper side of the bottom casing (9), characterized in that The burner according to any one of claims 1-9 is installed in the bottom shell (9) and extends from the upper side of the panel (7).

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