Oven stove exhaust chimney structure

Abstract

The utility model discloses an oven stove exhaust chimney structure which comprises an oven inner container body, a heat insulation plate, heat insulation cotton and a chimney, the heat insulation plate is arranged at the top of the oven inner container body, the heat insulation cotton is arranged between the oven inner container body and the heat insulation plate, the heat insulation plate and the heat insulation cotton are both of a double-layer structure, a first exhaust hole is formed in the top of the oven inner container body, and a second exhaust hole is formed in the top of the chimney. The first exhaust hole and the second exhaust hole are correspondingly communicated, at least part of the chimney penetrates through the second exhaust hole to be communicated with the first exhaust hole, and the caliber of the inlet end of the chimney is larger than that of the outlet end of the chimney. The chimney is arranged to be connected with the oven inner container body, the chimney is communicated with the exhaust hole in the oven inner container body, in the heating process, smoke generated by combustion can be exhausted to the outside through a channel formed after the chimney is connected, and the situation that the internal baking effect is affected is avoided. Meanwhile, the caliber of the inlet end of the chimney is larger than that of the outlet end of the chimney, so that heat loss is reduced during smoke exhaust.

Description

Technical Field

[0001] The utility model belongs to the technical field of ovens, in particular to an exhaust chimney structure of an oven stove. Background Art

[0002] When the existing gas or electric oven is working, it is often heated from the inner tank. The heating device is installed on the top plate and burns downward. Due to the floating characteristics of smoke, the smoke will gather in the upper area, which will not only affect the combustion of the heating device, but also cause uneven temperature distribution inside the inner tank. If the food is not taken out in time, it will easily burn over time, reducing the baking effect. CN111904292B discloses an oven structure, which accelerates the intake of hot air through an axial flow fan, so that the hot air can diffuse around the centrifugal fan at a faster flow rate. Although the heat circulation efficiency inside the oven is improved, if a diffuser hole is directly opened on the top of the inner tank to directly guide the internal smoke, the smoke will carry more heat, which will lead to more heat loss and affect the heating efficiency. Utility Model Content

[0003] The utility model aims to provide an exhaust chimney structure for an oven stove, which can solve at least one of the above problems.

[0004] According to one aspect of the utility model, an oven stove exhaust chimney structure is provided, comprising an oven inner tank body, an insulation board, insulation cotton and a chimney, wherein the insulation board is arranged on the top of the oven inner tank body, the insulation cotton is arranged between the oven inner tank body and the insulation board, the insulation board and the insulation cotton are both double-layer structures, a first exhaust hole is arranged on the top of the oven inner tank body, a second exhaust hole is arranged on the insulation board, the first exhaust hole and the second exhaust hole are correspondingly connected, the chimney is at least partially connected to the first exhaust hole through the second exhaust hole, and the diameter of the chimney inlet end is larger than the diameter of its outlet end.

[0005] The utility model has the following beneficial effects: by setting a chimney connected to the oven inner body, the chimney is connected to the exhaust hole on the oven inner body, and during the heating process, the smoke generated by the combustion can be discharged to the outside through the channel formed by the chimney connection, so as to avoid affecting the baking effect inside. At the same time, the diameter of the inlet end of the chimney is larger than the diameter of the outlet end, so as to reduce the heat loss during smoke exhaust.

[0006] In some embodiments, the chimney includes a first chimney assembly and a second chimney assembly, one end of the second chimney assembly passes through the insulation board and is connected to the oven inner tank body, and the other end of the second chimney assembly is connected to the first chimney assembly, so that smoke can be discharged through the chimney.

[0007] In some embodiments, the first chimney assembly includes a first straight pipe portion, a second straight pipe portion and an inclined portion, one end of the first straight pipe portion is connected to the second chimney assembly, and the other end of the first straight pipe portion is connected to the second straight pipe portion through the inclined portion. Thus, through such an arrangement, heat cannot be directly discharged vertically to the exhaust port, and heat loss can be reduced when exhausting smoke.

[0008] In some embodiments, a first port is disposed at one end of the first straight tube away from the inclined portion, and a second port is disposed at one end of the second straight tube away from the inclined portion, and the diameter of the first port is larger than the diameter of the second port. Thus, by such an arrangement, the first chimney assembly as a whole is arranged to be large at the bottom and small at the top, which can further reduce heat loss when exhausting smoke.

[0009] In some embodiments, one end of the first chimney assembly is provided with a plurality of folded edges, each of the plurality of folded edges is provided with a first mounting hole, and the heat insulation board is provided with a corresponding second mounting hole, and the first chimney assembly is fixed to the heat insulation board, thereby enhancing the stability of the chimney after installation.

[0010] In some embodiments, the first chimney assembly and the second chimney assembly are integrally formed, thereby eliminating the need to install the first chimney assembly and the second chimney assembly separately.

[0011] In some embodiments, heat insulation cotton is provided between the oven inner body and the heat insulation board, and the heat insulation cotton is provided with a third exhaust hole, and the third exhaust hole corresponds to the first exhaust hole, thereby further reducing the heat diffusion inside the oven inner body. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of the three-dimensional structure in the embodiment of the present application;

[0013] Figure 2 It is a schematic diagram of the explosion structure in the embodiment of the present application;

[0014] Figure 3 This is a schematic diagram of the thermal insulation cotton after installation in the embodiment of the present application;

[0015] Figure 4 is a schematic diagram of the heat insulation board after installation in the embodiment of the present application;

[0016] Figure 5 This is a perspective structural schematic diagram of the first chimney assembly in the embodiment of the present application;

[0017] Figure 6 This is a schematic structural diagram of the first chimney assembly from another perspective in the embodiment of the present application. DETAILED DESCRIPTION

[0018] The utility model is further described in detail below in conjunction with the accompanying drawings.

[0019] Reference Figure 1 to Figure 6 An exhaust chimney structure for an oven stove includes an oven inner body 1, an insulation board 3, insulation cotton 4 and a chimney 2. The insulation board 3 is arranged on the top of the oven inner body 1, and the insulation cotton 4 is arranged between the oven inner body 1 and the insulation board 3. The insulation board 3 and the insulation cotton 4 are both double-layer structures. A first exhaust hole 11 is arranged on the top of the oven inner body 1, and a second exhaust hole 31 is arranged on the insulation board 3. The first exhaust hole 11 and the second exhaust hole 31 are correspondingly connected. The chimney 2 is at least partially connected to the first exhaust hole 11 through the second exhaust hole 31, and the diameter of the inlet end of the chimney 2 is larger than the diameter of the outlet end. The smoke is discharged upward along the first exhaust hole 11 through the chimney 2, and will not gather on the top of the inner tank.

[0020] The chimney 2 includes a first chimney assembly 21 and a second chimney assembly 22. Figure 2 In one embodiment shown, through holes are opened at both ends of the second chimney assembly 22, and one end of the second chimney assembly 22 can be inserted along the second exhaust hole 31, so that the second chimney assembly 22 passes through the insulation board 3 and is connected to the oven inner tank body 1, and the other end of the second chimney assembly 22 is connected to the first chimney assembly 21.

[0021] Figure 5 A structure of a first chimney assembly 21 is shown. In order to reduce heat loss during smoke exhaust, the first chimney assembly 21 includes a first straight pipe portion 211, a second straight pipe portion 213 and an inclined portion 212. One end of the first straight pipe portion 211 is connected to the second chimney assembly 22, and the other end of the first straight pipe portion 211 is connected to the second straight pipe portion 213 through the inclined portion 212. That is, both ends of the inclined portion 212 are respectively connected to one end of the first straight pipe portion 211 and the second straight pipe portion 213.

[0022] A first port 210 is disposed at one end of the first straight tube portion 211 away from the inclined portion 212, and a second port 214 is disposed at one end of the second straight tube portion 213 away from the inclined portion 212. The diameter of the first port 210 is larger than that of the second port 214. Figure 5 and Figure 6 As shown, the length of the first straight pipe portion 211 can be smaller than the length of the second straight pipe portion 213. In addition, the second straight pipe portion 213 can also extend from the bottom end port to gradually shrink upward along the bottom, so that two ports of inconsistent sizes are formed at both ends of the second straight pipe portion 213, so that the first chimney assembly 21 as a whole is larger at the bottom and smaller at the top, so as to further reduce heat loss when exhausting smoke.

[0023] A heat insulation cotton 4 may also be provided between the oven liner body 1 and the heat insulation board 3. Figure 3As shown, it is tightly fitted on the top of the oven liner body 1 to improve the heat insulation effect. Advantageously, the heat insulation cotton 4 can be set to two layers. The double-layer heat insulation cotton 4 can provide good thermal insulation performance, which helps to maintain the temperature inside the oven stable and further reduce heat loss. Among them, the heat insulation cotton 4 is provided with a third exhaust hole 41, and the third exhaust hole 41 corresponds to the position of the first exhaust hole 11, so that the chimney 2 can pass through the third exhaust hole 41 to communicate with the oven liner body 1 without affecting the smoke dissipation of the chimney 2. Therefore, by arranging the heat insulation cotton 4, the diffusion of heat and smoke inside the oven liner body 1 can be further reduced.

[0024] In order to enhance the firmness of the chimney 2, one end of the first chimney assembly 21 is further provided with a plurality of folded edges 215, such as Figure 5 As shown, the folded edge 215 is arranged at the outer edge of the first port 210. The number of the folded edges 215 can be set according to the fixing requirements. For example, two folded edges 215 are set symmetrically along the two sides of the first port 210, and the two folded edges 215 are provided with a first mounting hole 216. Figure 4 As shown, a second mounting hole 32 is correspondingly provided on the heat insulation board 3, that is, after the first chimney assembly 21 is connected to the heat insulation board 3, it is installed along the corresponding folded edge 215, the first mounting hole 216 corresponds to the position of the second mounting hole 32, and the two folded edges 215 are tightened with screws to fix the first chimney assembly 21 to the heat insulation board 3. Similarly, a plurality of folded edges can also be provided at one end of the second chimney assembly 22, so that the second chimney assembly 22 is fixed to the heat insulation board 3 after installation. Through the above arrangement, the chimney 2 is effectively prevented from shaking left and right, and the stability of the chimney 2 after installation is ensured.

[0025] The above are only preferred implementations of the present invention. It should be pointed out that, for ordinary technicians in this field, several modifications and improvements can be made without departing from the creative concept of the present invention, which all belong to the protection scope of the present invention.

Claims

1. An oven stove exhaust chimney structure, characterized in that: The invention comprises an oven liner body (1), a heat insulation board (3), heat insulation cotton (4) and a chimney (2), wherein the heat insulation board (3) is arranged on the top of the oven liner body (1), the heat insulation cotton (4) is arranged between the oven liner body (1) and the heat insulation board (3), the heat insulation board (3) and the heat insulation cotton (4) are both double-layer structures, the top of the oven liner body (1) is provided with a first exhaust hole (11), the heat insulation board (3) is provided with a second exhaust hole (31), the first exhaust hole (11) and the second exhaust hole (31) are correspondingly connected, the chimney (2) at least partially passes through the second exhaust hole (31) and is connected to the first exhaust hole (11), and the diameter of the inlet end of the chimney (2) is larger than the diameter of the outlet end thereof.

2. The exhaust chimney structure of an oven stove according to claim 1, characterized in that: The chimney (2) comprises a first chimney assembly (21) and a second chimney assembly (22), one end of the second chimney assembly (22) passes through the heat insulation board (3) and is connected to the oven inner tank body (1), and the other end of the second chimney assembly (22) is connected to the first chimney assembly (21).

3. The exhaust chimney structure of an oven range according to claim 2, characterized in that: The first chimney assembly (21) comprises a first straight pipe portion (211), a second straight pipe portion (213) and an inclined portion (212); one end of the first straight pipe portion (211) is connected to the second chimney assembly (22); and the other end of the first straight pipe portion (211) is connected to the second straight pipe portion (213) via the inclined portion (212).

4. The exhaust chimney structure of an oven range according to claim 3, characterized in that: A first port (210) is provided at one end of the first straight tube portion (211) away from the inclined portion (212), and a second port (214) is provided at one end of the second straight tube portion (213) away from the inclined portion (212), wherein the caliber of the first port (210) is greater than the caliber of the second port (214).

5. The exhaust chimney structure of an oven range according to claim 2, characterized in that: One end of the first chimney assembly (21) is provided with a plurality of folded edges (215), each of the plurality of folded edges (215) is provided with a first mounting hole (216), a second mounting hole (32) is correspondingly provided on the heat insulation board (3), and the first chimney assembly (21) is fixed to the heat insulation board (3).

6. An oven stove exhaust chimney structure according to claim 1 or 2, characterized in that: The heat insulating cotton (4) is provided with a third exhaust hole (41), and the third exhaust hole (41) corresponds to the first exhaust hole (11).

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