Combustion furnace with guide plate

Abstract

The utility model discloses a combustion furnace with a guide plate, and relates to the technical field of combustion furnaces. The furnace comprises an outer furnace body and an inner furnace body which is arranged in the outer furnace body and is provided with a cavity, a gas guide channel is arranged between the outer furnace body and the inner furnace body; external ventilation holes are formed in the bottom side or the peripheral side of the outer furnace body and close to the lower part; internal ventilation holes are formed in the peripheral side, close to the upper part, of the inner furnace body; the cavity is communicated with the air guide channel through the internal vent hole and is communicated with the outside through the external vent hole; and a guide plate is arranged in the air guide channel close to the internal vent hole. By the adoption of the technical scheme, external air can be blown into the cavity of the inner oven body through the internal ventilation holes along the flow guide plate, so that flames in the oven generate an obvious secondary combustion effect at the height positions of the internal ventilation holes, and the barbecue oven has the advantages of being better in barbecue effect and ornamental effect.

Description

TECHNICAL FIELD

[0001] The utility model relates to combustion furnace technical field, concretely relates to a combustion furnace with deflector. BACKGROUND

[0002] Combustion furnaces are used in camping and utilize wood and charcoal as fuel for heating and cooking. Similarly, large portable fire pits are used in residential backyards for entertainment, for example, to provide outdoor heat and support limited cooking, such as barbecuing, heating.

[0003] In combustion furnaces, particularly large portable fire pits, it is common to have an outer furnace body and an inner furnace body, and the outer furnace body is provided with an outer air vent, and the inner furnace body is provided with an inner air vent, and the inner air vent introduces outside air, so that the flame in the furnace is secondary combustion at the height of the inner air vent. But because the outside air introduced by the inner air vent comes along the gap between the outer furnace body and the inner furnace body, it cannot blow further in the inner furnace body, so the effect of secondary combustion of the flame in the furnace at the height of the inner air vent is not obvious. For reference, see CN113939689A, Chinese invention patent application for Combustion furnace with fire grate. SUMMARY

[0004] The utility model discloses a combustion furnace with a deflector, which can introduce outside air into the cavity of the inner furnace body through the inner air vent along the deflector, thereby producing a more obvious secondary combustion effect of the flame in the furnace at the height of the inner air vent, and has the advantages of better barbecue effect and better viewing effect.

[0005] To achieve the above-mentioned purpose, the utility model adopts the technical scheme of a combustion furnace with a deflector, comprising: an outer furnace body, and an inner furnace body with a cavity arranged in the outer furnace body; a gas guide channel is formed between the outer furnace body and the inner furnace body; an outer air vent is arranged on the bottom side or the side of the outer furnace body near the lower position; an inner air vent is arranged on the side of the inner furnace body near the upper position; the cavity is communicated with the gas guide channel through the inner air vent, and is further communicated with the outside through the outer air vent; a deflector is arranged in the gas guide channel near the inner air vent.

[0006] The utility model further provides that one end of the deflector is tightly attached to the outer wall of the inner furnace body and located on the upper side of the inner air vent; the other end of the deflector is bent downward and close to the inner wall of the outer furnace body.

[0007] The utility model further provides that a reinforcing rib is arranged in the gas guide channel on the lower side of the deflector, the reinforcing rib is located between the outer air vent and the inner air vent, and the reinforcing rib is in the shape of a.

[0008] The utility model further sets up, the inside ventilation hole has a plurality of, ring circumference distribution in the inner stove body circumference side near upper portion position place.

[0009] The utility model further sets up, the guide plate has a plurality of, ring circumference distribution in the inner stove body circumference side near the inside ventilation hole position place.

[0010] The utility model further sets up, the guide plate has four, and adjacent two guide plates are arranged 90 degrees.

[0011] The utility model further sets up, the outer stove body with the inner stove body is rectangular column or cylindrical.

[0012] The utility model further sets up, the inside of the cavity of the inner stove body is detachably provided with the ash receiving disc on the lower side.

[0013] The utility model further sets up, the cavity inside the inner stove body is provided with the combustion row on the upper side of the ash receiving disc.

[0014] The utility model further sets up, the lower side of the outer stove body is provided with the lifting device.

[0015] After adopting above technical scheme, the utility model has the beneficial effects that in the utility model, the guide plate is arranged near the inside ventilation hole in the air guide channel, so that the external air can be blown into the cavity of the inner stove body through the inside ventilation hole along the guide plate, due to the Coanda effect, the external air can be blown farther, so that the secondary combustion effect of the flame in the stove is more obvious at the inside ventilation hole height, and the barbecue effect and the viewing effect are better. BRIEF DESCRIPTION OF DRAWINGS

[0016] In order to more clearly illustrate the technical scheme in the embodiment of the utility model or prior art, the following will briefly introduce the drawing needed to be used in the embodiment or prior art description, and obviously, the drawing in the following description is only some embodiments of the utility model, and for those skilled in the art, other drawings can be obtained according to these drawings without paying the creative labor.

[0017] Figure 1 It is the structure schematic diagram of the utility model;

[0018] Figure 2 It is the structure schematic diagram of another view of the utility model;

[0019] Figure 3 It is the position schematic diagram of the air guide channel between the outer stove body and the inner stove body;

[0020] Figure 4This is an exploded view of the structure of this utility model.

[0021] Explanation of reference numerals in the attached drawings: 1. Outer furnace body; 2. Inner furnace body; 3. Baffle plate; 4. Reinforcing rib; 5. Ash receiving tray; 6. Combustion exhaust; 7. Lifting device; a. Cavity; b. Gas guiding channel; c. External ventilation hole; d. Internal ventilation hole. Detailed Implementation

[0022] The present invention will be further described in detail below with reference to the accompanying drawings.

[0023] This specific embodiment is merely an explanation of the present utility model and is not intended to limit the present utility model. After reading this specification, those skilled in the art can make modifications to this embodiment without contributing any inventive element, but as long as they are within the scope of the claims of the present utility model, they are protected by patent law.

[0024] This embodiment relates to a combustion furnace with a baffle plate, such as Figures 1-4 As shown, the furnace includes: an outer furnace body 1, and an inner furnace body 2 disposed within the outer furnace body 1 and having a cavity a. A gas guiding channel b is provided between the outer furnace body 1 and the inner furnace body 2; an external ventilation hole c is provided on the bottom side of the outer furnace body 1; an internal ventilation hole d is provided on the periphery of the inner furnace body 2 near the upper part; the cavity a communicates with the gas guiding channel b via the internal ventilation hole d, and then with the outside via the external ventilation hole c. A guide plate 3 is provided in the gas guiding channel b near the internal ventilation hole d. In some embodiments, the external ventilation hole c may also be located on the periphery of the outer furnace body 1 near the lower part.

[0025] Specifically, such as Figure 4 As shown, one end of the guide plate 3 is attached to the outer wall of the inner furnace body 2 and is located above the internal ventilation hole d; the other end of the guide plate 3 is bent downwards and is close to the inner wall of the outer furnace body 1. By setting the guide plate 3 in the air guide channel b near the internal ventilation hole d, external air can be blown into the cavity a of the inner furnace body 2 through the internal ventilation hole d along the guide plate 3. Due to the Coanda Effect, the external air can be blown further, so that the flame in the furnace produces a more obvious secondary combustion effect at the height of the internal ventilation hole d, resulting in better grilling and visual effects. Specifically, in this embodiment, the guide plate 3 is Z-shaped, that is, the two ends are roughly parallel and connected in the middle by a connecting plate. In other embodiments, the guide plate 3 can also be arc-shaped.

[0026] Furthermore, such as Figure 3 and Figure 4As shown, the inner side of the air guide channel b is provided with a reinforcing rib 4 below the flow guide plate 3. The reinforcing rib 4 is located between the outer vent hole c and the inner vent hole d, and the reinforcing rib 4 is in the shape of a. By providing the reinforcing rib 4, on the one hand, the overall strength of the combustion furnace is strengthened, and on the other hand, the reinforcing rib 4 in the embodiment also has a certain flow guiding effect. Specifically, in the embodiment, the reinforcing rib 4 is located on the inner side of the air guide channel b.

[0027] In the embodiment, the inner vent hole d is provided with a plurality of inner vent holes, which are circumferentially distributed on the side of the inner furnace body 2 near the upper part. The flow guide plate 3 is also provided with a plurality of flow guide plates, which are circumferentially distributed on the side of the inner furnace body 2 near the inner vent hole d. In some embodiments, the inner vent hole d and the flow guide plate 3 can be provided on only some of the side walls.

[0028] In the embodiment, the flow guide plate 3 has four flow guide plates, and the two adjacent flow guide plates 3 are arranged at an angle of 90 degrees.

[0029] In the embodiment, the outer furnace body 1 and the inner furnace body 2 are in the shape of a rectangular column. In some embodiments, the outer furnace body 1 and the inner furnace body 2 can also be in the shape of a cylindrical column. Of course, the outer furnace body 1 and the inner furnace body 2 can also be in the shape of a pentagonal column, etc.

[0030] Preferably, as shown in the drawings, Figure 4 As shown, the inner side of the air guide channel b is provided with a reinforcing rib 4 below the flow guide plate 3. The reinforcing rib 4 is located between the outer vent hole c and the inner vent hole d, and the reinforcing rib 4 is in the shape of a. By providing the reinforcing rib 4, on the one hand, the overall strength of the combustion furnace is strengthened, and on the other hand, the reinforcing rib 4 in the embodiment also has a certain flow guiding effect. Specifically, in the embodiment, the reinforcing rib 4 is located on the inner side of the air guide channel b.

[0031] In addition, as shown in the drawings, Figure 1 and Figure 2 The lower side of the outer furnace body 1 is provided with a lifting device 7. Thus, when the outer vent hole c is provided on the bottom side of the outer furnace body 1, external air can enter from the outer vent hole c. In addition, the lifting device 7 also has a heat insulation effect. In the embodiment, the lifting device 7 is specifically a furnace leg.

[0032] The working principle of the utility model is roughly as follows: by providing the flow guide plate 3 near the inner vent hole d in the air guide channel b, external air can blow into the cavity a of the inner furnace body 2 through the inner vent hole d along the flow guide plate 3. Due to the Coanda effect, external air can be blown further, so that the secondary combustion effect of the flame in the furnace is more obvious at the height of the inner vent hole d, and the barbecue effect and the viewing effect are better.

[0033] The above is only used to illustrate the technical scheme of the utility model and is not limited, and other modifications or equivalent replacements of the technical scheme of the utility model made by those skilled in the art should be covered in the scope of the claims of the utility model.

Claims

1. A combustion furnace with a baffle, comprising: The outer furnace body (1) and the inner furnace body (2) provided in the outer furnace body (1) and having a cavity (a); the outer furnace body (1) and the inner furnace body (2) have a gas guide channel (b); the bottom side or the side of the outer furnace body (1) is provided with an external ventilation hole (c) near the lower position; the side of the inner furnace body (2) is provided with an internal ventilation hole (d) near the upper position; the cavity (a) is communicated with the gas guide channel (b) through the internal ventilation hole (d), and then communicated with the outside through the external ventilation hole (c); characterized in that a flow guide plate (3) is arranged in the gas guide channel (b) near the internal ventilation hole (d).

2. The combustion furnace with a deflector according to claim 1, characterized in that, One end of the flow guide plate (3) is close to the outer wall of the inner furnace body (2) and located on the upper side of the internal ventilation hole (d); the other end of the flow guide plate (3) is bent downward and close to the inner wall of the outer furnace body (1).

3. The combustion furnace with a deflector according to claim 1, characterized in that, A reinforcing rib (4) is arranged in the gas guide channel (b) below the flow guide plate (3), the reinforcing rib (4) is located between the external ventilation hole (c) and the internal ventilation hole (d), and the reinforcing rib (4) is shaped.

4. The combustion furnace with a deflector according to claim 1, characterized in that, The internal ventilation hole (d) has a plurality of holes, which are circumferentially distributed near the upper position of the side of the inner furnace body (2).

5. The combustion furnace of claim 4, wherein The flow guide plate (3) has a plurality of plates, which are circumferentially distributed near the internal ventilation hole (d) of the side of the inner furnace body (2).

6. The combustion furnace with a deflector according to claim 5, characterized in that The flow guide plate (3) has four plates, and the two adjacent flow guide plates (3) are arranged at 90 degrees.

7. The combustion furnace with a deflector according to claim 1, characterized in that, The outer furnace body (1) and the inner furnace body (2) are rectangular columnar or cylindrical.

8. The combustion furnace with a deflector according to claim 1, characterized in that, A dust collecting disc (5) is detachably arranged on the inner side of the cavity (a) of the inner furnace body (2).

9. The combustion furnace with a deflector according to claim 8, characterized in that A combustion row (6) is arranged on the upper side of the dust collecting disc (5) in the inner side of the cavity (a) of the inner furnace body (2).

10. The combustion furnace with a deflector according to claim 1, characterized in that, The lower side of the outer furnace body (1) is provided with a lifting device (7).

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