Inner fire cover, combustor and gas stove

Abstract

The utility model discloses an inner fire cover, a burner and a gas stove, the inner fire cover is integrally formed and arranged, the inner fire cover comprises an inner fire cover body, and the lower side of the inner fire cover body is provided with a secondary air cavity and a first inner ring gas channel from inside to outside; a plurality of inner fire holes communicating with the first inner ring gas channel are formed in the peripheral side of the inner fire cover body, a boss is arranged on the upper side face of the inner fire cover body, and secondary air holes communicating with the secondary air cavity are formed in the peripheral side of the boss. And an included angle theta is formed between the secondary air hole and the upper side surface of the inner fire cover body. According to the inner fire cover, the secondary air cavity and the secondary air holes communicated with the secondary air cavity are formed in the inner fire cover body, so that secondary air can flow from bottom to top, secondary combustion air is provided for inner ring fire, a secondary air channel does not need to be arranged between the inner fire cover and an outer fire cover, liquid accumulation is avoided, and the service life of the inner fire cover is prolonged. The cleaning is easy.

Description

TECHNICAL FIELD

[0001] The utility model relates to kitchen electrical technology field especially relates to a inner fire cover, combustor and gas stove. BACKGROUND

[0002] In order to meet the needs such as big fire power combustion, flame uniformity and fire regulation, the outer ring fire cover and the inner ring fire cover adopt split type, double ring concentric type structure. In order to supplement the secondary air of the inner ring fire, the usual method is to reserve a secondary air channel between the outer ring fire cover and the inner ring fire cover, and the secondary air enters the secondary air channel through the bottom of the outer ring fire cover to supplement the secondary air inside the inner ring fire or the outer ring fire. The disadvantage of the prior art is that the secondary air channel will accumulate the liquid of the overflowed pot, which is difficult to clean.

[0003] The height of the existing combustor fire cover to the glass panel is above 40mm, and the height of the pot support is above 62mm, so the overall effect is relatively conspicuous, which affects the appearance of the gas stove and the style matching of the whole household.

[0004] At present, the gas stove of foreign countries has an integrated fire cover structure, and the outer fire cover and the inner fire cover are integrated, and the height of the combustor is also slightly protruding from the panel, so the overall effect is relatively flat. However, the liquid of the overflowed pot is still accumulated in the secondary air channel reserved for the inner ring fire and the outer ring fire, so the effect of easy cleaning cannot be achieved.

[0005] Therefore, there is an urgent need for an inner fire cover, combustor and gas stove to solve the above problems. SUMMARY

[0006] The utility model aims at solving one of the problems in the prior art to some extent, and proposes an inner fire cover, which is integrally formed, and is provided with a secondary air cavity and a secondary air hole in communication with the secondary air cavity on the inner fire cover body, so that the secondary air can flow from bottom to top to provide secondary combustion air for the inner ring fire, without the need to set a secondary air channel between the inner fire cover and the outer fire cover, thereby avoiding liquid accumulation and facilitating cleaning.

[0007] The above-mentioned purpose is achieved by the following technical solutions:

[0008] An inner fire cover is integrally formed, which comprises an inner fire cover body, a secondary air cavity and a first inner ring gas passage are formed from inside to outside on the lower side of the inner fire cover body, a plurality of inner fire holes in communication with the first inner ring gas passage are formed on the circumferential side of the inner fire cover body, a boss is arranged on the upper side of the inner fire cover body, a secondary air hole in communication with the secondary air cavity is formed on the circumferential side of the boss, and the secondary air hole is inclined from inside to outside upwards and has an included angle θ with the upper side of the inner fire cover body.

[0009] Optionally, 20° < θ < 45°.

[0010] Optionally, the boss is arranged at the middle of the upper side of the inner fire cover body, the upper side of the inner fire cover body is further provided with a first liquid containing groove and a first liquid guiding groove, the first liquid containing groove is arranged at the outer circumferential side of the boss, the first liquid guiding groove is arranged at the outer circumferential wall of the first liquid containing groove and communicates the outer circumferential side of the boss and the first liquid containing groove, the bottom end of the outer side of the secondary air hole is arranged higher than the groove bottom of the first liquid containing groove, and the upper end of the secondary air hole is arranged higher than the outer circumferential wall of the first liquid containing groove.

[0011] Optionally, the upper side of the inner fire cover body is further provided with a brim, the brim is arranged at the circumferential side of the first liquid containing groove and extends outward, and the outer side of the inner fire hole is located below the brim.

[0012] Optionally, the circumferential side of the inner fire cover body is further provided with an ignition hole, the brim is provided with a shielding part arranged outward, and the shielding part is located above the ignition hole.

[0013] Optionally, the inner fire hole is arranged to be inclined upward from inside to outside.

[0014] The utility model discloses a burner, including furnace end, outer fire cover and above-mentioned inner fire cover, the furnace end includes furnace end body, the furnace end body is from inside to outside in proper order provided with the first secondary air through -hole of the through upper side and lower side of furnace end body, the second inner ring gas passage and the first outer ring gas passage, the outer fire cover includes outer fire cover body, the outer fire cover body is from inside to outside in proper order opened with the second secondary air through -hole, the third inner ring gas passage and the second outer ring gas passage, the outer circumferential side of outer fire cover body is opened with a plurality of outer fire holes that communicate with third inner ring gas passage, the second secondary air through -hole and third inner ring gas passage are through the upper side and lower side of outer fire cover body arrangement, the second outer ring gas passage is arranged at the lower side of outer fire cover body, the outer fire cover and inner fire cover all cover and set up on furnace end body, and inner fire cover is located at the middle of outer fire cover, and the first secondary air through -hole, second secondary air through -hole and secondary air cavity are from below to above in proper order and communicate and form secondary air flow channel, and the second inner ring gas passage, third inner ring gas passage and first inner ring gas passage are from below to above in proper order and communicate and form inner ring gas flow channel, and the first outer ring gas passage and second outer ring gas passage communicate and form outer ring gas flow channel.

[0015] Optionally, the upper side of the outer fire cover body is further provided with a second liquid containing groove, the second liquid containing groove is arranged outside the inner fire cover, a fire transmission hole and a second liquid guide groove extending from inside to outside are arranged on the outer peripheral wall of the second liquid containing groove, the fire transmission hole and the second liquid guide groove are both in communication with the second liquid containing groove and the outside of the outer fire cover body, at least two fire avoiding areas are arranged on the peripheral side of the outer fire cover body, the fire transmission hole is arranged between two adjacent fire avoiding areas, the fire transmission hole is arranged at one of the fire avoiding areas, the second liquid guide groove is arranged at the other fire avoiding area, and the lowest point of the fire transmission hole is higher than the lowest point of the second liquid guide groove.

[0016] Optionally, the igniting needle is arranged on the burner body and extends out of the outer fire cover body to the outside of the igniting hole of the inner fire cover body.

[0017] The utility model discloses still one aspect provides a gas -cooker, including above -mentioned combustor.

[0018] Compared with the prior art, the utility model at least includes following beneficial effect:

[0019] The utility model discloses a inner fire cover integrated setting, inner fire cover includes inner fire cover body, the downside of inner fire cover body is arranged with secondary air cavity and first inner ring gas passage from inside to outside, the peripheral side of inner fire cover body is arranged with a plurality of inner fire holes that communicate with first inner ring gas passage, the upper side of inner fire cover body is provided with the boss, the peripheral side of boss is arranged with secondary air hole that communicates with secondary air cavity, and secondary air hole is inclined from inside to outside upwards and has the angle θ between the upper side of inner fire cover body, the boss is arranged on the upper side of inner fire cover body and is provided with secondary air cavity that communicates with secondary air hole, so that secondary air can flow from secondary air cavity to secondary air hole, thereby providing enough secondary air for inner ring fire of inner fire hole, and the secondary air hole is inclined to facilitate the secondary air to flow from secondary air cavity to the outside of boss via secondary air hole, guaranteeing the flow velocity of secondary air, thereby improving the supplement of secondary air, guaranteeing the combustion efficiency of inner ring fire, making inner ring fire have the combustion state of big fire, satisfying the explosive frying demand of user, and not needing to set secondary air passage between inner fire cover and outer fire cover, avoiding the accumulation of liquid and being easy to clean. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 It is the three-dimensional structure schematic diagram of the combustor provided by the utility model embodiment;

[0021] Figure 2 It is Figure 1 the exploded view of

[0022] Figure 3 is a top view of the inner fire cover of the burner provided by the embodiment of the utility model;

[0023] Figure 4 is Figure 3 the sectional view at A-A in figure;

[0024] Figure 5 is a top view of the burner provided by the embodiment of the utility model;

[0025] Figure 6 is Figure 5 the sectional view at B-B in figure.

[0026] In the figure:

[0027] 1, inner fire cover; 11, inner fire cover body; 12, boss; 13, secondary air hole; 14, inner fire hole; 15, first liquid holding groove; 16, shielding part; 17, first liquid guide groove; 18, secondary air cavity; 19, first inner ring gas passage; 10, brim;

[0028] 2, outer fire cover; 21, outer fire cover body; 22, second liquid holding groove; 23, fire avoiding area; 24, fire transmission hole; 25, outer fire hole; 26, second liquid guide groove; 27, second secondary air through hole; 28, third inner ring gas passage;

[0029] 3, ignition needle;

[0030] 4, burner tip; 41, burner tip body; 42, first outer ring gas passage; 43, second inner ring gas passage; 44, first secondary air through hole;

[0031] 100, secondary air flow channel; 200, inner ring gas flow channel; 300, outer ring gas flow channel. DETAILED DESCRIPTION

[0032] The following embodiments are used to illustrate the utility model, but the utility model is not limited by these embodiments. The specific implementation of the utility model is modified or some technical features are replaced equivalently without departing from the spirit of the utility model scheme, and they should be covered in the technical scheme range of the utility model claimed.

[0033] Please refer to Figures 1-6The utility model provides a kind of inner fire cover 1, inner fire cover 1 integrally formed setting, inner fire cover 1 includes inner fire cover body 11, the downside of inner fire cover body 11 is from inside to outside and is provided with secondary air cavity 18 and first inner ring gas passage 19, the lateral side of inner fire cover body 11 is provided with multiple inner fire holes 14 being communicated with first inner ring gas passage 19, the upside of inner fire cover body 11 is provided with boss 12, the lateral side of boss 12 is provided with secondary air hole 13 being communicated with secondary air cavity 18, secondary air hole 13 is from inside to outside and is upwardly inclined and has included angle θ between the upside of inner fire cover body 11, by being provided with the boss 12 of secondary air hole 13 in the upside of inner fire cover body 11, and being provided with secondary air cavity 18 being communicated with secondary air hole 13 on inner fire cover 1, so that secondary air can flow from secondary air cavity 18 to secondary air hole 13, to provide enough secondary air for inner ring fire at inner fire hole 14, by the inclination of secondary air hole 13, to facilitate secondary air to flow from secondary air cavity 18 to the outside of boss 12 via secondary air hole 13, guarantee the flow velocity of secondary air, to improve the supplement amount of secondary air, guarantee the combustion efficiency of inner ring fire, so that inner ring fire has the combustion state of larger fire, meet the user's explosive frying demand, without being provided with secondary air passage between inner fire cover 1 and outer fire cover 2, avoid liquid accumulation, easy to clean.

[0034] Optionally, 20°< θ <45°, to facilitate secondary air from secondary air cavity 18 to secondary air hole 13.

[0035] Preferably, in the embodiment, θ is 30°.

[0036] Optionally, boss 12 is arranged at the middle of the upside of inner fire cover body 11, the upside of inner fire cover body 11 is further provided with first liquid containing groove 15 and first liquid guide groove 17, first liquid containing groove 15 is arranged at the outer peripheral side of boss 12, first liquid guide groove 17 is arranged at the outer peripheral wall of first liquid containing groove 15 and is communicated with the outer peripheral side of boss 12 and first liquid containing groove 15, the bottom end of the outside of secondary air hole 13 is higher than the groove bottom of first liquid containing groove 15, to avoid overflow in first liquid containing groove 15 to flow into secondary air hole 13, by being provided with first liquid guide groove 17, to make overflow in first liquid containing groove 15 can flow out to the outside of inner fire cover body 11 via first liquid guide groove 17, avoid overflow accumulation in first liquid containing groove 15. The upper end of secondary air hole 13 is higher than the outer peripheral wall of first liquid containing groove 15, to facilitate secondary air to flow to inner fire hole 14 beyond the peripheral wall of first liquid containing groove 15.

[0037] Optionally, the upper side of the inner fire cover body 11 is further provided with a brim 10, the brim 10 is arranged on the side of the first liquid containing groove 15 and extends outward, the outer side of the inner fire hole 14 is below the brim 10, thereby shielding the inner fire hole 14 and avoiding liquid overflow into the inner fire hole 14.

[0038] Optionally, the side of the inner fire cover body 11 is further provided with an ignition hole (not shown in the figure), the brim 10 is provided with a shielding part 16 extending outward, the shielding part 16 is above the ignition hole, the shielding part 16 can shield the ignition hole and the ignition needle 3 arranged outside the ignition hole.

[0039] Optionally, the inner fire hole 14 is arranged upwardly inclined from inside to outside, which can shorten the distance between the inner ring fire and the cooking pot, avoid heat loss, improve the efficiency of the inner ring fire, and make the inner fire hole 14 contact with the secondary air flowing out of the secondary air hole 13, thereby improving the combustion efficiency.

[0040] The utility model discloses a burner, including stove head 4, outer fire cover 2 and above-mentioned inner fire cover 1, stove head 4 includes stove head body 41, stove head body 41 is arranged with the first secondary air through -hole 44 of the first secondary air through -hole 44 and the second inner ring gas passage 43 and the first outer ring gas passage 42 in proper order from inside to outside through the upper side and the lower side of stove head body 41, outer fire cover 2 includes outer fire cover body 21, and outer fire cover body 21 is sequentially set with the second secondary air through -hole 27, third inner ring gas passage 28 and second outer ring gas passage on outer fire cover body 21 from inside to outside, and the outer periphery of outer fire cover body 21 is provided with a plurality of outer fire holes 25 that communicate with the third inner ring gas passage 28, the second secondary air through -hole 27 and the third inner ring gas passage 28 are arranged through the upper side and the lower side of outer fire cover body 21, and the second outer ring gas passage is arranged on the lower side of outer fire cover body 21, and outer fire cover 2 and inner fire cover 1 are all covered on stove head body 41, and inner fire cover 1 is located at the middle part of outer fire cover 2, and the first secondary air through -hole 44, the second secondary air through -hole 27 and the secondary air cavity 18 sequentially communicate from bottom to top and form the secondary air flow channel 100, thereby realizing from bottom to top for the inner ring fire to provide secondary air, and the second inner ring gas passage 43, the third inner ring gas passage 28 and the first inner ring gas passage 19 sequentially communicate from bottom to top and form the inner ring gas flow channel 200, and the first outer ring gas passage 42 and the second outer ring gas passage communicate and form the outer ring gas flow channel 300.

[0041] Optionally, the upper side of the outer fire cap body 21 is further provided with a second liquid containing groove 22, which is arranged outside the inner fire cap 1, a fire transmission hole 24 and a second liquid guiding groove 26 are arranged on the outer peripheral wall of the second liquid containing groove 22 and extend from inside to outside, the fire transmission hole 24 and the second liquid guiding groove 26 are both in communication with the second liquid containing groove 22 and the outside of the outer fire cap body 21, at least two fire avoiding areas 23 are arranged on the peripheral side of the outer fire cap body 21, an outer fire hole 25 is arranged between two adjacent fire avoiding areas 23, the fire transmission hole 24 is arranged at one of the fire avoiding areas 23, so that the inner ring fire can be transmitted to the outer fire hole 25 through the fire transmission hole 24, the second liquid guiding groove 26 is arranged at the other fire avoiding area 23, so that the overflow liquid in the second liquid containing groove 22 can flow to the fire avoiding area 23 through the second liquid guiding groove 26 and then flow out to the outside of the outer fire cap 2, thereby avoiding the overflow liquid from flowing to the outer fire hole 25 and extinguishing the outer ring fire. In addition, the arrangement of the fire avoiding area 23 can make the secondary air outside the outer fire cap 2 enter the inner fire cap 1 through the fire avoiding area 23, thereby providing the secondary air for the inner ring fire and improving the combustion efficiency of the inner ring fire.

[0042] Optionally, the lowest point of the fire transmission hole 24 is arranged higher than the lowest point of the second liquid guiding groove 26, so as to avoid the overflow liquid from flowing out through the fire transmission hole 24.

[0043] Optionally, the igniting needle 3 is further arranged on the stove head body 41 and extends out from the outer fire cap body 21 to the outside of the igniting hole arranged in the inner fire cap body 11.

[0044] The utility model further provides a gas stove, which comprises the above burner.

[0045] The above description is only some embodiments of the utility model. For ordinary skilled persons in the art, without departing from the creative concept of the utility model, a plurality of modifications and improvements can be made, which all belong to the protection scope of the utility model.

Claims

1. An inner fire cap characterized in that, The inner fire cover is integrally formed, and the inner fire cover comprises an inner fire cover body (11), a secondary air cavity (18) and a first inner ring gas passage (19) are formed on the lower side of the inner fire cover body (11) from inside to outside, a plurality of inner fire holes (14) in communication with the first inner ring gas passage (19) are formed on the circumferential side of the inner fire cover body (11), a boss (12) is arranged on the upper side of the inner fire cover body (11), a secondary air hole (13) in communication with the secondary air cavity (18) is formed on the circumferential side of the boss (12), and the secondary air hole (13) is arranged upwardly and obliquely from inside to outside and has an included angle θ with the upper side of the inner fire cover body (11).

2. The inner fire door according to claim 1, wherein, 20°< θ < 45°.

3. The inner fire door according to claim 1, wherein, The boss (12) is arranged at the middle of the upper side of the inner fire cover body (11), a first liquid containing groove (15) and a first liquid guiding groove (17) are further arranged on the upper side of the inner fire cover body (11), the first liquid containing groove (15) is arranged on the outer circumferential side of the boss (12), the first liquid guiding groove (17) is formed on the outer circumferential wall of the first liquid containing groove (15) and is in communication with the outer circumferential side of the boss (12) and the first liquid containing groove (15), the bottom end of the outer side of the secondary air hole (13) is arranged higher than the groove bottom of the first liquid containing groove (15), and the upper end of the secondary air hole (13) is arranged higher than the outer circumferential wall of the first liquid containing groove (15).

4. The inner fire door according to claim 3, wherein, The upper side of the inner fire cover body (11) is further provided with a brim (10), the brim (10) is arranged on the circumferential side of the first liquid containing groove (15) and extends outwardly, and the outer side of the inner fire hole (14) is located below the brim (10).

5. The inner fire door according to claim 4, wherein, The circumferential side of the inner fire cover body (11) is further provided with an ignition hole, the brim (10) is provided with a shielding part (16) extending outwardly, and the shielding part (16) is located above the ignition hole.

6. The inner fire door according to any one of claims 1-5, characterized in that The inner fire hole (14) is arranged upwardly and obliquely from inside to outside.

7. A burner characterized by, The burner comprises a burner head (4), an outer fire cover (2), and an inner fire cover (1) according to any one of claims 1-6, the burner head (4) comprises a burner head body (41), the burner head body (41) is sequentially provided with a first secondary air through hole (44), a second inner ring gas passage (43), and a first outer ring gas passage (42) from inside to outside of the burner head body (41), the outer fire cover (2) comprises an outer fire cover body (21), the outer fire cover body (21) is sequentially provided with a second secondary air through hole (27), a third inner ring gas passage (28), and a second outer ring gas passage from inside to outside of the outer fire cover body (21), a plurality of outer fire holes (25) are provided on the outer circumferential side of the outer fire cover body (21) and communicate with the third inner ring gas passage (28), the second secondary air through hole (27) and the third inner ring gas passage (28) are provided through the upper side and the lower side of the outer fire cover body (21), the second outer ring gas passage is provided at the lower side of the outer fire cover body (21), the outer fire cover (2) and the inner fire cover (1) are both provided on the burner head body (41), the inner fire cover (1) is located at the middle part of the outer fire cover (2), the first secondary air through hole (44), the second secondary air through hole (27), and the secondary air cavity (18) sequentially communicate from bottom to top to form a secondary air flow channel (100), the second inner ring gas passage (43), the third inner ring gas passage (28), and the first inner ring gas passage (19) sequentially communicate from bottom to top to form an inner ring gas flow channel (200), and the first outer ring gas passage (42) and the second outer ring gas passage communicate to form an outer ring gas flow channel (300).

8. The burner of claim 7, wherein The upper side of the outer fire cover body (21) is further provided with a second liquid containing groove (22), the second liquid containing groove (22) is provided at the outer side of the inner fire cover (1), a fire transmission hole (24) and a second liquid guide groove (26) extending from inside to outside are provided on the outer circumferential wall of the second liquid containing groove (22), the fire transmission hole (24) and the second liquid guide groove (26) both communicate the second liquid containing groove (22) with the outside of the outer fire cover body (21), at least two fire avoiding areas (23) are provided on the circumferential side of the outer fire cover body (21), the outer fire hole (25) is provided between two adjacent fire avoiding areas (23), the fire transmission hole (24) is provided at one of the fire avoiding areas (23), and the second liquid guide groove (26) is provided at the other fire avoiding area (23), and the lowest point of the fire transmission hole (24) is higher than the lowest point of the second liquid guide groove (26).

9. The burner of claim 7, wherein The burner further comprises an ignition needle (3), the ignition needle (3) is installed on the burner head body (41) and extends out of the outer fire cover body (21) to the outside of the ignition hole provided in the inner fire cover body (11).

10. A gas hob, characterized in that The burner comprises the burner according to any one of claims 7-9.

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