A barbecue oven

Abstract

The utility model discloses a barbecue oven, comprising a plurality of support frames, a split shell is arranged outside two adjacent support frames, and a shell is formed by a plurality of split shells, the shell comprises an air inlet cavity arranged at the lower part and a combustion cavity arranged at the upper part, an air inlet is arranged at the bottom of the air inlet cavity, and the area of ​​the top of the air inlet cavity is larger than the area of ​​the air inlet; it also comprises a combustion cylinder arranged in the combustion cavity, a support sheet is arranged on the inner side of the support frame, the combustion cylinder is detachably seated on the support frame, and the bottom plate of the combustion cylinder is in line contact with the support sheet, and a gap is arranged between the outer wall of the combustion cylinder and the inner wall of the support frame; a grilling plate is detachably arranged on the top of the combustion cylinder, and a gap is arranged between the outer wall of the grilling plate and the inner wall of the support frame. The purpose of the utility model is to provide a barbecue oven that does not require a blasting device, has a simple structure, and can protect users from scalding.

Description

Technical Field

[0001] The utility model relates to barbecue equipment, in particular to a barbecue stove. Background Art

[0002] A barbecue grill is a barbecue equipment that can be used to make barbecue foods such as grilled lamb skewers, grilled meat, grilled vegetables, etc. Its essence is to heat and cook food through heat conduction. Barbecue grills can be divided into charcoal barbecue grills, gas barbecue grills and electric barbecue grills according to different heat sources; according to different barbecue forms, barbecue grills can be divided into manual barbecue grills and automatic barbecue grills; according to different usage scenarios, barbecue grills can be divided into household barbecue grills and commercial barbecue grills.

[0003] The Chinese utility model patent with the patent name "A Portable Smokeless Charcoal Grill" and application number 2019207957924 discloses a portable smokeless charcoal grill that is easy to clean and maintain, has little pollution, and is easy to use. However, this charcoal grill also has the following problems: 1. It requires the use of an air blower, so it needs to be connected to power facilities, which is not only inconvenient to use, but also poses certain safety hazards; 2. In order to prevent burns or high temperature from causing damage to the air blower, it has a built-in heat-insulating inner sleeve, which makes the structure of the charcoal grill relatively complicated. Summary of the invention

[0004] Purpose of the utility model: The purpose of the utility model is to provide a barbecue grill which does not require a blast device, has a simple structure and can protect users from burns.

[0005] Technical solution: The utility model describes a barbecue grill, comprising a plurality of support frames, wherein split shells are arranged on the outside of two adjacent support frames, and a plurality of the split shells constitute a shell, wherein the shell comprises an air intake chamber arranged at the lower part and a combustion chamber arranged at the upper part, an air intake port is arranged at the bottom of the air intake chamber, and the area of ​​the top of the air intake chamber is larger than the area of ​​the air intake port; further comprising a combustion tube arranged in the combustion chamber, a support sheet is arranged on the inner side of the support frame, the combustion tube is detachably seated on the support frame, and the bottom plate of the combustion tube is in linear contact with the support sheet, and a gap is arranged between the outer wall of the combustion tube and the inner wall of the support frame; a grilling plate is detachably arranged on the top of the combustion tube, and a gap is arranged between the outer wall of the grilling plate and the inner wall of the support frame; the gap distance between the outer wall of the combustion tube and the inner wall of the support frame is greater than 1 mm, and the gap distance between the outer wall of the grilling plate and the inner wall of the support frame is 0.8 mm to 1 mm.

[0006] Furthermore, an ash receiving cylinder for storing completely burned charcoal is arranged at the bottom center of the combustion cylinder, and an ash receiving opening is arranged at the top of the ash receiving cylinder.

[0007] Furthermore, a heat insulation plate is arranged in the combustion tube, the inner side of the heat insulation plate abuts against the ash receiving port, and the outer side of the heat insulation plate abuts against the inner wall of the combustion tube.

[0008] Furthermore, the heat insulation plate is placed obliquely in the combustion tube.

[0009] Furthermore, the bottom plate of the combustion tube is provided with a plurality of combustion through holes, and the side wall of the ash receiving tube is provided with a plurality of ash receiving through holes, and the ash receiving through holes are located between the bottom plate of the combustion tube and the ash receiving port.

[0010] Furthermore, the combustion tube is cylindrical.

[0011] Furthermore, a charcoal basin for burning charcoal can be detachably arranged in the combustion tube, a plurality of charcoal basin through holes are provided on the side wall of the charcoal basin, an ash outlet is provided at the bottom of the charcoal basin for dropping fully burned charcoal, and the position of the ash outlet corresponds to the position of the ash receiving outlet.

[0012] Furthermore, a stewing cylinder for stewing food can be detachably arranged inside the charcoal basin.

[0013] Furthermore, the outer edge of the air inlet cavity is arc-shaped.

[0014] Furthermore, the area ratio of the air inlet at the bottom of the air inlet cavity to the top of the air inlet cavity is 1:1.3 to 1:1.6.

[0015] Furthermore, the bottom of the support frame includes a heightening portion for increasing the distance from the ground.

[0016] Beneficial effects: Compared with the prior art, the utility model has the following advantages: 1. Since the area of ​​the top of the air inlet cavity is larger than the area of ​​the air inlet, when grilling, the hot air moves upward, so that a certain negative pressure is formed in the air inlet cavity, so that the air is sucked into the shell from the bottom air inlet. Therefore, the utility model does not need to set up an additional blower device, so there is no need to connect to power facilities, which indirectly eliminates safety hazards; and the area ratio of the air inlet at the bottom of the air inlet cavity to the top of the air inlet cavity is 1:1.3~1:1.6, and this area ratio can ensure that there is enough air in the air inlet cavity. Sufficient air can prevent the charcoal fire from going out or producing carbon monoxide and other harmful gases to the body due to insufficient combustion; 2. Since a gap is set between the outer wall of the combustion tube and the inner wall of the support frame, a gap is set between the outer wall of the barbecue plate and the inner wall of the support frame, and the bottom plate of the combustion tube is in line contact with the support sheet, the contact surface between the combustion tube and the shell is very small, and the combustion tube and the shell can only conduct heat through air. The thermal conductivity of air is much worse than that of metal. Therefore, the temperature of the shell is not high when burning in the combustion tube, thereby preventing people from being burned by high temperature due to accidental contact with the shell. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1It is a three-dimensional diagram of the utility model.

[0018] Figure 2 It is a cross-sectional view of the utility model.

[0019] Figure 3 for Figure 2 Enlarged view at A.

[0020] Figure 4 It is a cross-sectional schematic diagram of the shell in the utility model.

[0021] Figure 5 It is a schematic diagram of the support frame in the utility model.

[0022] Figure 6 It is a schematic diagram of the combination of two adjacent support frames and a split shell in the utility model.

[0023] Figure 7 It is a three-dimensional diagram of the combustion tube in the utility model at one angle.

[0024] Figure 8 It is a three-dimensional diagram of the combustion tube in the utility model from another angle.

[0025] Fig. 9 This is a cross-sectional view of the combustion tube in the utility model

[0026] Fig.10 It is a three-dimensional diagram of a charcoal basin in the utility model at one angle.

[0027] Fig.11 It is a three-dimensional diagram of the charcoal basin in the utility model from another angle.

[0028] Among them: 1. stewing cylinder; 2. barbecue plate; 3. shell; 301. sub-shell; 302. combustion chamber; 303. air intake chamber; 4. support frame; 401. support plate; 402. heightening part; 5. combustion cylinder; 501. heat insulation board; 502. ash cylinder; 503. bottom plate; 6. charcoal basin. DETAILED DESCRIPTION

[0029] The technical solution of the utility model is further described below in conjunction with the accompanying drawings.

[0030] See attached Figures 1 to 11 A barbecue grill shown in the utility model comprises twelve support frames 4, support sheets 401 are arranged inside the support frames 4, and the bottom of the support frames 4 comprises a heightening portion 402 for increasing the distance from the ground.

[0031] A split shell 301 is arranged on the outside of two adjacent support frames 4 by mortise and tenon insertion, welding or other means, and twelve split shells 301 constitute a shell body 3, which includes an air intake chamber 303 arranged at the lower part and a combustion chamber 302 arranged at the upper part, an air intake port is arranged at the bottom of the air intake chamber 303, the area of ​​the top of the air intake chamber 303 is larger than the area of ​​the air intake port, and the area ratio of the air intake port at the bottom of the air intake chamber 303 to the top of the air intake chamber 303 is 1:1.5; the outer edge of the air intake chamber 303 is arc-shaped.

[0032] The combustion chamber 302 further includes a cylindrical combustion tube 5, which is detachably mounted on the support frame 4, and a bottom plate 503 of the combustion tube 5 is in line contact with the support sheet 401, and a gap is provided between the outer wall of the combustion tube 5 and the inner wall of the support frame 4; a grilling plate 2 is detachably provided on the top of the combustion tube 5, and a gap is provided between the outer wall of the grilling plate 2 and the inner wall of the support frame 4; a space for storing completely burned wood is provided at the center of the bottom of the combustion tube 5. An ash receiving tube 502 for charcoal is provided with an ash receiving port on the top of the ash receiving tube 502; a heat insulation plate 501 is provided in the combustion tube 5, the inner side of the heat insulation plate 501 abuts against the ash receiving port, and the outer side of the heat insulation plate 501 abuts against the inner wall of the combustion tube 5; the heat insulation plate 501 is placed obliquely in the combustion tube 5; a plurality of combustion through holes are provided on the bottom plate 503 of the combustion tube 5, a plurality of ash receiving through holes are provided on the side wall of the ash receiving tube 502, and the ash receiving through holes are located between the bottom plate 503 of the combustion tube 5 and the ash receiving port.

[0033] A charcoal basin 6 for burning charcoal can be detachably arranged in the combustion tube 5, and a plurality of charcoal basin through holes are provided on the side wall of the charcoal basin 6. An ash outlet is provided at the bottom of the charcoal basin 6 for dropping fully burned charcoal, and the position of the ash outlet corresponds to the position of the ash receiving outlet; a stewing tube 1 for stewing food can be detachably arranged in the charcoal basin 6.

Claims

1. A barbecue oven, characterized in that: The invention comprises a plurality of support frames (4), wherein a split shell (301) is arranged outside two adjacent support frames (4), and the plurality of split shells (301) surround and form a shell (3), wherein the shell (3) comprises an air intake chamber (303) arranged at a lower portion and a combustion chamber (302) arranged at an upper portion, wherein an air intake port is arranged at the bottom of the air intake chamber (303), and the area of ​​the top of the air intake chamber (303) is larger than the area of ​​the air intake port; and further comprises a combustion chamber (302) arranged in the combustion chamber (302). A burning tube (5), a supporting sheet (401) is arranged on the inner side of a supporting frame (4), the burning tube (5) is detachably seated on the supporting frame (4), and a bottom plate (503) of the burning tube (5) is in linear contact with the supporting sheet (401), and a gap is arranged between the outer wall of the burning tube (5) and the inner wall of the supporting frame (4); a grilling plate (2) is detachably arranged on the top of the burning tube (5), and a gap is arranged between the outer wall of the grilling plate (2) and the inner wall of the supporting frame (4).

2. A barbecue oven according to claim 1, characterized in that: An ash receiving cylinder (502) is arranged at the center of the bottom of the combustion cylinder (5), and an ash receiving opening is arranged at the top of the ash receiving cylinder (502).

3. A barbecue oven according to claim 2, characterized in that: A heat insulation plate (501) is arranged inside the combustion tube (5), the inner side of the heat insulation plate (501) abuts against the ash receiving port, and the outer side of the heat insulation plate (501) abuts against the inner wall of the combustion tube (5).

4. A barbecue oven according to claim 3, characterized in that: The heat insulation board (501) is placed obliquely inside the combustion tube (5).

5. A barbecue oven according to claim 2, characterized in that: The bottom plate (503) of the combustion cylinder (5) is provided with a plurality of combustion through holes, and the side wall of the ash receiving cylinder (502) is provided with a plurality of ash receiving through holes, wherein the ash receiving through holes are located between the bottom plate (503) of the combustion cylinder (5) and the ash receiving opening.

6. A barbecue oven according to claim 2, characterized in that: The combustion tube (5) is cylindrical.

7. A barbecue oven according to claim 2, characterized in that: A charcoal basin (6) for burning charcoal is detachably arranged in the combustion tube (5), a plurality of charcoal basin through holes are provided on the side wall of the charcoal basin (6), an ash drop opening for dropping fully burned charcoal is provided at the bottom of the charcoal basin, and the position of the ash drop opening corresponds to the position of the ash receiving opening.

8. A barbecue oven according to claim 7, characterized in that: A stewing cylinder (1) is detachably arranged inside the charcoal basin (6).

9. The barbecue oven according to claim 1, characterized in that: The outer edge of the air inlet cavity (303) is arc-shaped.

10. The barbecue oven according to claim 1, characterized in that: The bottom of the support frame (4) comprises an elevated portion (402).

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