Furnace end structure of barbecue oven

Abstract

The utility model relates to a burner structure of a barbecue oven, in particular to a burner structure of a barbecue oven, which is sufficient in burning and comprises a burner used for jetting flames, and an opening portion communicated with outside air is arranged on the burner. When the combustor is in a combustion state, external air circularly flows through the opening part and provides oxygen for the combustor, so that fuel gas of the combustor is fully combusted, and the purpose of saving energy is achieved; the combustor is of a long-strip-shaped annular structure and is large in combustion area, and flame holes used for jetting flames are formed in the periphery of the combustor. The opening part is vertically arranged on the combustor in a penetrating manner and forms an air flowing part in which air flows circularly, so that the purpose of air exchange is achieved during combustion of the combustor, and the combustion of the combustor is more sufficient.

Description

Technical Field

[0001] The utility model relates to the technical field of gas combustion, in particular to a burner structure of a barbecue grill. Background Art

[0002] A burner is a general term for a device that sprays and mixes fuel and air for combustion. At present, the grills on the market heat and barbecue food through a barbecue burner. Most of the existing burners are circular burner heads, which are large in size, lack innovation in appearance, have weak performance optimization, and have a limited perspective, resulting in a lack of attractiveness in product sales and inability to meet the needs of the majority of consumers for the use performance in real life.

[0003] In order to solve the above technical problems, a circular burner is designed in the existing market. However, when these burners are burning, there is a phenomenon of insufficient combustion supplement. For example, Chinese Patent No. ZL202222159845.8 discloses a circular direct-injection burner for a grill, which includes a body. The body includes a first plate and a second plate. A gas distribution cavity and a flame stabilizing structure are formed between the first plate and the second plate. The flame stabilizing structure includes a guiding ring and a plurality of fire outlet hole structures evenly distributed along the circumference of the guiding ring. The guiding ring is located at the bottom of the first plate and is bent towards the second plate. The openings of each fire outlet hole structure are all oriented towards the bent portion of the guiding ring. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a burner structure of a barbecue grill. By providing an opening on the burner for the external air to circulate, the external air circulates through the opening and provides oxygen to the burner, thereby making the gas of the burner burn fully and achieving the purpose of energy conservation.

[0005] The purpose of the utility model is realized as follows:

[0006] A burner structure of a barbecue grill, especially a burner structure of a barbecue grill with sufficient combustion, includes a burner for spraying flames, and an opening communicating with the external air is provided on the burner; when the burner is in a combustion state, the external air circulates through the opening and provides oxygen to the burner, thereby making the gas of the burner burn fully.

[0007] The opening is vertically penetrated through the burner to form an air flow part for the air to circulate, so as to achieve the purpose of air exchange when the burner is burning, and further make the burner burn more fully.

[0008] A guiding inclined surface for guiding the air flow is provided on the opening; the air circulates through the opening along the guiding inclined surface.

[0009] The burner is in a long strip ring structure, and there are flame holes for jetting flames on the periphery of the burner. The burner is in a long strip ring structure, with a large combustion area. The diameter of the flame holes is 1.8 mm to 2.2 mm. A number of flame holes on the burner are arranged at intervals linearly, and the distance between two adjacent flame holes is 5 mm to 6 mm.

[0010] The burner in a ring structure is provided with a gas inner cavity for entering gas and communicating with the flame holes.

[0011] The burner is provided with an ejector pipe for delivering gas to its gas inner cavity. The ejector pipe is provided with an air inlet hole for communicating with the outside air and a gas hole for entering gas. The outside air enters the ejector pipe through the air inlet hole and mixes with the gas.

[0012] The air enters the ejector pipe and mixes with the gas, which is beneficial to the full combustion of the gas.

[0013] An insect-proof net is provided at the position corresponding to the air inlet hole on the ejector pipe to prevent insects from entering the ejector pipe and avoid blockage of the ejector pipe.

[0014] The burner includes a bottom plate. A positioning connection part is provided between the ejector pipe and the bottom plate, and the ejector pipe and the bottom plate are positioned and connected through the positioning connection part; and a limiting block is provided on the ejector pipe and abuts against the outside of the bottom plate.

[0015] The bottom plate includes a bottom wall and side part flanges extending upward along the outer peripheral side of the bottom wall. A plurality of flame holes arranged at intervals are provided on the side part flanges.

[0016] The burner further includes a cover plate. A concave part is provided on the cover plate and is concave downward along the lower part of the cover plate; a convex part is provided on the bottom plate and is convex upward along the upper part of the bottom plate. Open holes are provided on both the concave part and the convex part to form an opening part on the burner for communicating with the outside air; the cover plate is covered on the bottom plate, and the concave part abuts against the top of the convex part to prevent gas from leaking to the outside air from here.

[0017] The inner diameter of the concave part gradually decreases along the lower part of the cover plate, and the inner diameter of the convex part gradually increases along the upper part of the bottom plate. Guide inclined planes for guiding the air flow are formed on the inner sides of the concave part and the convex part.

[0018] The beneficial effects of the present utility model are as follows:

[0019] The burner is provided with an opening part for circulating the outside air. The outside air circulates through the opening part and provides oxygen for the burner, so that the gas of the burner burns fully, achieving the purpose of energy saving. Description of the Drawings

[0020] Figure 1 It is a three-dimensional structural schematic diagram of the burner head of an embodiment of the present utility model.

[0021] Figure 2 This is a schematic plan view of the burner head according to an embodiment of the present utility model.

[0022] Figure 3 This is another schematic plan view of the burner head according to an embodiment of the present utility model from another orientation.

[0023] Figure 4 It is Figure 3 The schematic cross-sectional structure diagram of section A-A in

[0024] Figure 5 This is a schematic assembly and disassembly structure diagram of the burner head according to an embodiment of the present utility model. Specific embodiments

[0025] The present utility model will be further described below in conjunction with the accompanying drawings and embodiments.

[0026] Refer to Figures 1 - 5 , a burner head structure of a barbecue grill, in particular, a burner head structure of a barbecue grill with sufficient combustion, including a burner 1 for jetting flames, and an opening 2 communicating with the outside air is provided on the burner 1; when the burner 1 is in a combustion state, the outside air circulates through the opening 2 and provides oxygen to the burner 1, so that the gas of the burner 1 burns sufficiently.

[0027] The opening 2 is vertically penetrated through the burner 1 and forms an air flow part for air to circulate.

[0028] A guiding inclined surface 17 for guiding air flow is provided on the opening 2; the air circulates through the opening 2 along the guiding inclined surface 17

[0029] The burner 1 has a long strip ring structure, and flame holes 3 for jetting flames are provided on the burner 1.

[0030] A gas inner cavity 4 for entering gas and communicating with the flame holes 3 is provided on the burner 1.

[0031] An ejector pipe 5 for delivering gas to the gas inner cavity 4 of the burner 1 is provided on the burner 1. An air inlet hole 6 communicating with the outside air and a gas hole 7 for entering gas are provided on the ejector pipe 5. The outside air enters the ejector pipe 5 through the air inlet hole 6 and is mixed with the gas.

[0032] An insect-proof net 8 is provided at the position corresponding to the air inlet hole 6 on the ejector pipe 5. An installation opening groove for installing the insect-proof net 8 is provided on the ejector pipe 5, and the insect-proof net 8 is fixed inside the installation opening groove by means of buckles or welding, etc.

[0033] The burner 1 includes a bottom plate 9. A positioning connection part 10 is provided between the ejector pipe 5 and the bottom plate 9. The ejector pipe 5 and the bottom plate 9 are positioned and connected through the positioning connection part 10; and a limiting block 12 abutting against the outside of the bottom plate 9 is provided on the ejector pipe 5.

[0034] In this embodiment, a connecting flange plate is provided on the ejector pipe 5. The positioning and connecting part 10 includes a slot hole provided on the bottom plate 9 and a positioning post provided on the connecting flange plate. The positioning post is aligned with the slot hole, and the connecting flange plate of the ejector pipe 5 is fixed to the bottom plate 9 through screws and nuts. Then, the cover plate 14 is installed on the bottom plate 9 in a covering manner.

[0035] In this embodiment, a bent and turned edge for clamping the top of the side edge 13 of the bottom plate 9 can be provided on the outer peripheral side of the cover plate 14.

[0036] Alternatively, the cover plate 14 and the bottom plate 9 can be fixedly connected by screws or rivets.

[0037] The bottom plate 9 includes a bottom wall 11 and side edges 13 extending upward along the outer peripheral side of the bottom wall 11. A plurality of flame holes 3 arranged at intervals are provided on the side edges 11.

[0038] The burner 1 further includes a cover plate 14. A concave part 15 is provided on the cover plate 14 in a concave manner below the cover plate 14; a convex part 16 is provided on the bottom plate 9 in a convex manner above the bottom plate 9. Open holes are provided on both the concave part 15 and the convex part 16, and an opening part 2 communicating with the outside air is formed on the burner 1; the cover plate 14 is covered on the bottom plate 9, and the concave part 15 abuts against the top of the convex part 16.

[0039] The inner diameter of the concave part 15 gradually decreases along the lower side of the cover plate 14, and the inner diameter of the convex part 16 gradually increases along the upper side of the bottom plate 9. A guiding inclined surface 17 for guiding the air flow is formed inside the concave part 15 and the convex part 16.

[0040] In this embodiment, the material of the cover plate 14 is metal, and the concave part 15 is formed by stamping process. The material of the bottom plate 9 is metal, and the convex part 16 is formed by stamping process.

[0041] In this embodiment, the entire burner 1 is formed by stamping, with a short processing cycle and an easy processing technology.

[0042] The above is the preferred solution of the present invention, which shows and describes the basic principle, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. What is described in the above embodiments and the specification only illustrates the principle of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed. The scope of protection claimed by the present invention is defined by the appended claims and their equivalents.

Claims

1. A stove head structure of a barbecue grill, in particular a stove head structure of a barbecue grill with sufficient combustion, comprising a burner (1) for spraying flames, characterized in that: The burner (1) is provided with an opening (2) communicating with outside air; when the burner (1) is in a combustion state, outside air circulates through the opening (2) and provides oxygen to the burner (1), thereby allowing the fuel gas of the burner (1) to burn fully.

2. The stove head structure of the barbecue stove according to claim 1, characterized in that: The opening portion (2) is vertically penetrated on the burner (1) to form an air flow portion for circulating air.

3. The stove head structure of the barbecue stove according to claim 1, characterized in that: A guide slope (17) for guiding the flow of air is provided on the opening portion (2); the air circulates along the guide slope (17) and passes through the opening portion (2).

4. The stove head structure of the barbecue stove according to claim 1, characterized in that: The burner (1) is in the form of a long ring structure, and flame holes (3) for spraying flames are provided on the periphery of the burner (1).

5. The stove head structure of the barbecue stove according to claim 1, characterized in that: The burner (1) is provided with a gas inner cavity (4) for the entry of gas and connected to the flame hole (3).

6. The stove head structure of the barbecue stove according to claim 1, characterized in that: The burner (1) is provided with an ejector pipe (5) for conveying fuel gas to its fuel gas inner cavity (4); the ejector pipe (5) is provided with an air inlet hole (6) for communicating with external air and a fuel gas hole (7) for entering the fuel gas; external air enters the ejector pipe (5) through the air inlet hole (6) and is mixed with the fuel gas.

7. The stove head structure of the barbecue stove according to claim 6, characterized in that: An insect-proof net (8) is provided on the ejection pipe (5) at a position corresponding to the air inlet hole (6).

8. The stove head structure of the barbecue stove according to claim 6, characterized in that: The burner (1) comprises a bottom plate (9), a positioning connection portion (10) is provided between the ejector tube (5) and the bottom plate (9), the ejector tube (5) and the bottom plate (9) are positioned and connected via the positioning connection portion (10); and a limiting block (12) is provided on the ejector tube (5) and abuts against the outer side of the bottom plate (9).

9. The stove head structure of the barbecue stove according to claim 8, characterized in that: The bottom plate (9) comprises a bottom wall (11), and a side rib (13) extending upwardly along the outer peripheral side of the bottom wall (11), wherein a plurality of flame holes (3) arranged in an interval are provided on the side rib (13).

10. The stove head structure of the barbecue stove according to claim 8, characterized in that: The burner (1) further comprises a cover plate (14), wherein a concave portion (15) is provided on the cover plate (14) and is arranged concavely along the bottom of the cover plate (14); a convex portion (16) is provided on the bottom plate (9) and is arranged convexly along the top of the bottom plate (9); both the concave portion (15) and the convex portion (16) are provided with openings, and an opening portion (2) communicating with outside air is formed on the burner (1); the cover plate (14) covers the bottom plate (9), and the concave portion (15) abuts against the top of the convex portion (16); the inner diameter of the concave portion (15) gradually decreases along the bottom of the cover plate (14), and the inner diameter of the convex portion (16) gradually increases along the top of the bottom plate (9); and a guide inclined surface (17) for guiding air flow is formed on the inner sides of the concave portion (15) and the convex portion (16).

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