Improved kindling structure of gas furnace end

Abstract

The utility model discloses an improved gas furnace end kindling structure which comprises a furnace shell, an air guide cup and an ignition assembly, the air guide cup is nested in the furnace shell, an air guide cavity is correspondingly formed between the inner wall of the furnace shell and the outer wall of the air guide cup, and kindling parts are arranged at any positions of the inner cavity of the air guide cup and the port of the air guide cup. A kindling cavity sinking relative to the top face of the kindling part is formed in the kindling part, and the ignition assembly is used for igniting the kindling cavity. The kindling cavity of the kindling part is arranged to be of the sunken structure, so that air cannot enter the kindling cavity, kindling is prevented from being blown out by airflow in the air guide cup or being sprayed out by water, and the burner has the advantages of being stable in kindling and stable in ignition.

Description

Technical Field

[0001] The utility model relates to the technical field of gas stoves, in particular to an improved gas stove head fire starter structure. Background Art

[0002] In current commercial stoves, air and gas are usually mixed through an external pipeline and introduced into the burner head for direct combustion in the fire chamber. However, the main fire air flows into the burner head at a high speed, which can easily form turbulence and blow directly to the root of the fire, causing the entire fire to go out. Or water droplets splashing into the furnace mouth can easily cause the fire to be unstable or even go out. Ignition must be repeated multiple times, which is inconvenient. Utility Model Content

[0003] The utility model aims to provide an improved gas burner head fire structure with stable fire, so as to solve the problem of unstable fire and easy extinguishing of fire proposed in the above background technology.

[0004] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0005] An improved gas stove head spark structure includes a stove shell, an air guide cup and an ignition assembly, wherein the air guide cup is nested in the stove shell and an air guide cavity is correspondingly formed between the inner wall of the stove shell and the outer wall of the air guide cup, a spark part is provided at any position of the inner cavity of the air guide cup and the port of the air guide cup, the spark part forms a spark cavity which is sunken relative to its top surface, and the ignition assembly is used to ignite the spark cavity.

[0006] Preferably, the outer peripheral surface of the top end of the air guide cup extends laterally to form a side edge overlapping the top end of the furnace shell, the fire starter portion is embedded on the side edge, and an air distribution hole connected to the air guide cavity is opened on the cavity wall of the fire starter cavity.

[0007] Preferably, the improved gas burner head spark structure includes a spark ring, which is connected to the top of the air guide cup, and a spark chamber connected to the spark cavity is provided at a position of the spark ring corresponding to the spark part.

[0008] Preferably, the improved gas burner head spark structure includes a combustion disk arranged in the air guide cup, the combustion disk is fixedly mounted on the top of the spark part, the bottom of the spark part is connected to the bottom surface of the air guide cup, and an air distribution hole connected to the air guide cavity is opened at the bottom of the spark cavity.

[0009] Preferably, the ignition assembly includes a spark rod and an ignition needle, one end of the spark rod is connected to the spark cavity, and the ignition needle is arranged in or outside the spark cavity.

[0010] Compared with the prior art, the beneficial effects of the utility model are:

[0011] 1. The fire chamber of the fire-starting part is set as a sinking structure, so that the wind cannot enter the fire chamber, which prevents the fire from being blown out by the airflow in the wind guide cup or being extinguished by water, and has the advantages of stable fire and stable ignition; the fire rod is provided with a gas channel connected to the fire chamber along its axis, and a wind distribution hole connected to the wind guide chamber is provided on the cavity wall of the fire chamber to provide air to the fire chamber; a baffle is provided at the port where the fire chamber is connected to the inner cavity of the wind guide cup, and the baffle is used to block the wind blowing toward the ignition needle to prevent the fire from being blown out;

[0012] 2. A plurality of first air outlet holes connecting the air guide cavity and the mixing chamber are provided on the side wall of the upper part of the air guide cup. The plurality of first air outlet holes are evenly distributed on the side wall of the upper part of the air guide cup so that the air and the gas are mixed more evenly. The air in the air guide cavity flows into the mixing chamber through the first air outlet holes to mix with the gas. At this time, the mixed gas flowing into the mixing chamber cannot enter the fire bin and the fire cavity, and the fire in the fire cavity is not easily blown out, so that the mixed gas is easily ignited by the ignition needle; second air outlet holes distributed circumferentially are provided on the side edge, and the air in the air guide cavity flows to the fire outlet of the fire ring through the second air outlet holes to provide more sufficient air for igniting the mixed gas. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 A stereogram of the first viewing angle of the present invention;

[0014] Figure 2 A stereogram of the second viewing angle of the present invention;

[0015] Figure 3 It is an exploded view of the utility model;

[0016] Figure 4 It is a top view of the utility model;

[0017] Figure 5 It is a cross-sectional view of section AA of the utility model;

[0018] Figure 6 It is a three-dimensional diagram of the fire starter rod of the utility model;

[0019] Figure 7 It is a three-dimensional diagram of the fire starter ring of the utility model;

[0020] Figure 8 It is a three-dimensional diagram of the air guide cup of the utility model;

[0021] Fig. 9 It is a three-dimensional diagram of the ignition rod of the utility model;

[0022] Fig.10 It is a cross-sectional view of another embodiment of the utility model.

[0023] The markings in the figure correspond to the following:

[0024] 1-furnace shell; 11-inner ear; 2-air guide cup; 21-side edge; 211-through hole; 212-perforation; 22-gas chamber; 23-mixing chamber; 24-first air outlet; 25-second air outlet; 3-fire ring; 31-ring; 4-ignition assembly; 41-fire rod; 411-fire part; 412-gas duct; 413-air distribution hole; 414-fire chamber; 42-ignition rod; 421-caulking protrusion; 43-ignition needle; 5-air guide chamber; 6-fire chamber; 61-blocking piece; 7-combustion plate; 71-straight rod; 72-air outlet; 8-gas pipe; 9-air inlet. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0026] Example 1

[0027] See also Figure 1-3 An improved gas burner ignition structure includes a furnace shell 1, an air guide cup 2 and an ignition assembly 4. The air guide cup 2 is nested in the furnace shell 1, and an air guide cavity 5 is formed between the inner wall of the furnace shell 1 and the outer wall of the air guide cup 2. The inner cavity of the air guide cup 2 is used to contain a mixed gas composed of gas and air. Figure 4 A spark part 411 is provided at any position of the inner cavity of the air guide cup 2 and the port of the air guide cup 2 . The spark part 411 forms a spark cavity 414 that is sunken relative to its top surface. The ignition assembly is used to ignite the spark cavity 414 .

[0028] See also Figure 5 The outer peripheral surface of the top of the air guide cup 2 extends sideways to form a side edge 21 overlapped on the top of the furnace shell 1, and the fire starter portion 411 is embedded in the side edge 21. The cavity wall of the fire starter cavity 414 is provided with an air distribution hole 413 connected to the air guide cavity 5, so that air can flow into the fire starter cavity 414. The improved gas burner head fire starter structure includes a fire starter ring 3, which is connected to the top of the air guide cup 2, and a fire outlet is formed on the inner circumference of the fire starter ring 3 accordingly. The fire starter ring 3 is provided with a fire starter bin 6 connected to the fire starter cavity 414 at a position corresponding to the fire starter portion 411, and the ignition assembly 4 is arranged in the fire starter bin 6.

[0029] See also Figure 5The ignition assembly 4 includes a spark rod 41 and an ignition needle 43. One end of the spark rod 41 is connected to the spark cavity 414. The ignition needle 43 is arranged in the spark cavity 414 or outside the spark cavity 414, and is used to ignite the spark cavity 414. Figure 8 The side edge 21 is provided with a through hole 211 at a position corresponding to the fire chamber 6, and the fire section 411 is embedded in the through hole 211. In this embodiment, the top end surface of the fire section 411 is flush with the top surface of the side edge 21. In other embodiments, the top end surface of the fire section 411 may protrude from the top surface of the side edge 21. By setting the fire chamber 414 of the fire section 411 as a sinking structure, the wind cannot enter the fire chamber 414, which prevents the fire from being blown out by the airflow in the wind guide cup 2 or being extinguished by water, and has the advantages of stable fire and stable ignition.

[0030] See also Figure 3-5 as well as Figure 8 The ignition assembly 4 also includes an ignition rod 42, and the side edge 21 is provided with a through hole 212 located next to the through hole 211. The top end of the ignition rod 42 passes through the air guide cavity 5 and the through hole 212 to extend into the fire chamber 6. The bottom ends of the fire rod 41 and the ignition rod 42 respectively pass downward through the air guide cavity 5 and extend out of the furnace shell 1. The top end surface of the ignition rod 42 protrudes from the top surface of the side edge 21. In this embodiment, two ignition rods 42 are provided, and the ignition needles 43 on the two ignition rods 42 are arranged opposite to each other. In other embodiments, more than two ignition rods 42 may also be provided.

[0031] See also Figure 5-6 The fire starter rod 41 is provided with a gas channel 412 connected to the fire starter cavity 414 along its axis, and the gas channel 412 is for the gas to pass through; when ignited by the ignition assembly 4, the air passes through the air distribution hole 413 from the air guide cavity 5 and mixes with the gas in the fire starter cavity 414, and the mixed gas flows to the fire starter bin 6, and is then ignited by the ignition needle 43, and further ignites the mixed gas in the air guide cup 2.

[0032] See also Figure 8-9 A card slot (not shown) is provided on the hole wall at the top of the through hole 212, and a card protrusion 421 adapted to the card slot is provided on the rod wall at the top of the ignition rod 42, and the card protrusion 421 is correspondingly engaged in the card slot.

[0033] See also Figure 2 as well as Figure 7 A baffle 61 is provided at the port where the fire bin 6 communicates with the inner cavity of the air guide cup 2. The baffle 61 is used to block the wind blowing toward the ignition needle 43 to prevent the fire from being blown out.

[0034] See also Figure 3-5The bottom of the furnace shell 1 is provided with an air inlet 9 connected to the air guide cavity 5, and the air inlet 9 is externally connected to a blast device for providing air to the air guide cavity 5. The air guide cup 2 is provided with a combustion disk 7 parallel to the bottom surface of the air guide cup 2, and the combustion disk 7 is connected to the bottom surface of the air guide cup 2 through a straight rod 71. In this embodiment, the straight rod 71 is perpendicular to the bottom surface of the air guide cup 2. The combustion disk 7 divides the inner cavity of the air guide cup 2 into a gas chamber 22 located below the combustion disk 7 and a mixing chamber 23 located above the combustion disk 7. Please refer to Figure 5 The combustion disk 7 is provided with gas outlets 72 which are distributed in the circumferential direction and communicate with the gas chamber 22 and the mixing chamber 23 .

[0035] The improved gas burner ignition structure also includes a gas pipe 8, one end of which passes through the furnace shell 1 and is connected to the gas chamber 22 in the inner cavity of the air guide cup 2, for providing gas to the gas chamber 22. The gas flows into the mixing chamber 23 through the gas outlet 72 to mix with the air.

[0036] See also Figure 5 and Figure 8 The side wall of the upper part of the air guide cup 2 is provided with a plurality of first air outlet holes 24 connecting the air guide cavity 5 and the mixing chamber 23. The plurality of first air outlet holes 24 are evenly distributed on the side wall of the upper part of the air guide cup 2, so that the air and the gas are mixed more evenly. The air in the air guide cavity 5 flows into the mixing chamber 23 through the first air outlet holes 24 and mixes with the gas. At this time, the mixed gas flowing into the mixing chamber 23 cannot enter the fire chamber 6, and the fire is not easily blown out, so that the mixed gas is easily ignited by the ignition needle 43.

[0037] Preferably, the side edge 21 is provided with second air outlet holes 25 distributed circumferentially, and the air in the air guide cavity 5 flows through the second air outlet holes 25 to the fire outlet of the fire ring 3, providing more sufficient air for igniting the mixed gas.

[0038] See also Figure 3 and Figure 5 The inner wall of the upper part of the furnace shell 1 is provided with a plurality of inner ears 11, and the side edge 21 is fixed to the plurality of inner ears 11 by bolts.

[0039] See also Figure 5 and Figure 7 The bottom edge of the fire ring 3 is downwardly formed into a ring sleeve 31 which is sleeved on the outer periphery of the side edge 21.

[0040] Example 2

[0041] See also Fig.10 The structure of Example 2 is basically the same as that of Example 1, except that:

[0042] An improved gas stove head spark structure includes a combustion disk 7 arranged in an air guide cup 2, the combustion disk 7 is fixedly mounted on the top of a spark part 411, the bottom of the spark part 411 is connected to the bottom surface of the air guide cup 2, and an air distribution hole 413 connected to the air guide cavity 5 is opened at the bottom of the spark cavity 414.

[0043] The working principle of the improved gas burner ignition structure of the utility model is: Figure 5 or Fig.10 , air is provided to the air guide cavity 5 from the air inlet 9 at the bottom of the furnace shell 1, and the air flows into the mixing chamber 23 through the first air outlet 24; at the same time, the gas pipe 8 provides gas to the gas chamber 22, and the gas in the gas chamber 22 flows into the mixing chamber 23 through the air outlet 72 of the combustion disk 7 and mixes with the air to form a mixed gas; at the same time, the fire rod 41 provides gas to the fire cavity 414 of the fire part 411 through the gas channel 412, and the air in the air guide cavity 5 passes through the air distribution hole 413 and mixes with the gas in the fire cavity 414, and the mixed gas flows upward into the fire bin 6 or directly into the gas chamber 22, and then ignites the mixed gas through the ignition needle 43 of the ignition rod 42, and the ignited fire further ignites the mixed gas in the air guide cup 2.

[0044] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An improved gas burner head spark structure, characterized in that: The invention comprises a furnace shell (1), an air guide cup (2) and an ignition assembly (4); the air guide cup (2) is nested in the furnace shell (1), and an air guide cavity (5) is formed between the inner wall of the furnace shell (1) and the outer wall of the air guide cup (2); a sparking part (411) is provided at any position of the inner cavity of the air guide cup (2) and the port of the air guide cup (2); the sparking part (411) forms a sparking cavity (414) which is sunken relative to the top surface thereof; and the ignition assembly is used for igniting the sparking cavity (414).

2. The improved gas burner ignition structure according to claim 1 is characterized in that: The outer peripheral surface of the top end of the air guide cup (2) extends laterally to form a side edge (21) overlapped on the top end of the furnace shell (1), the spark part (411) is embedded in the side edge (21), and the cavity wall of the spark cavity (414) is provided with an air distribution hole (413) connected to the air guide cavity (5).

3. The improved gas burner ignition structure according to claim 2 is characterized in that: The fire starter ring (3) is connected to the top of the air guide cup (2), and a fire starter chamber (6) communicating with the fire starter cavity (414) is provided at a position of the fire starter ring (3) corresponding to the fire starter portion (411).

4. The improved gas burner ignition structure according to claim 1 is characterized in that: The invention comprises a combustion disk (7) arranged in the air guide cup (2), the combustion disk (7) is fixedly sleeved on the top of the fire starter portion (411), the bottom of the fire starter portion (411) is connected to the bottom surface of the air guide cup (2), and the bottom of the fire starter cavity (414) is provided with an air distribution hole (413) connected to the air guide cavity (5).

5. The improved gas burner ignition structure according to claim 1 is characterized by: The ignition assembly (4) comprises a spark rod (41) and an ignition needle (43); one end of the spark rod (41) is connected to the spark cavity (414); and the ignition needle (43) is arranged inside the spark cavity (414) or outside the spark cavity (414).

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