Exhaust structure for integrated cooker

Abstract

The utility model relates to the technical field of kitchen appliances, and particularly discloses an exhaust structure for an integrated cooker, which is used for communicating an inner container of a steaming and baking oven with a fan cavity internally provided with a fan component, and a first through hole and a second through hole are respectively formed in the wall surface of the inner container and the wall surface of the fan cavity. The exhaust structure for the integrated cooker comprises an exhaust nozzle and an elastic plate, the exhaust nozzle sequentially penetrates through the first through hole and the second through hole, and the exhaust nozzle is provided with an exhaust hole communicating with the inner container and the fan cavity. The elastic plate is located on the end face of the end, close to the draught fan cavity, of the exhaust nozzle, and the elastic plate deforms and is switched from the state of closing the exhaust hole to the state of gradually opening the exhaust hole along with gradual increase of the pressure difference between the draught fan cavity and the inner container. The integrated cooker provided with the exhaust structure can prevent external gas from flowing backwards into the inner container, so that peculiar smell and bacterium breeding in the inner container can be avoided, and the integrated cooker is beneficial to human health.

Description

Technical Field

[0001] The utility model relates to the technical field of kitchen appliances, in particular to an exhaust structure for an integrated stove. Background Art

[0002] With the improvement of people's living standards and the continuous development of science and technology, kitchen appliances with high integration and full functions have gradually been favored by consumers.

[0003] Most existing household integrated stoves are integrated with a steam oven cabinet. This cabinet often incorporates an exhaust system to remove excess air from the oven while it's operating, ensuring balanced pressure within the oven cavity and ensuring optimal cooking. However, this exhaust system is bidirectionally connected to the outside. When the oven is not in use, air can backflow, creating odors and potentially breeding bacteria, which can be harmful to health.

[0004] Therefore, there is an urgent need for an integrated stove exhaust structure to solve the above problems. Utility Model Content

[0005] The purpose of the utility model is to provide an exhaust structure for an integrated stove, so as to solve the problem in the related art that the exhaust structure of the steam oven of the integrated stove is in a two-way conductive state with the outside. When the steam oven is not in use, gas will flow back, causing odor in the steam oven cavity. In the long run, it is easy to breed bacteria and endanger health.

[0006] The utility model provides an exhaust structure for an integrated stove, which is used to connect the inner container of a steam oven and a fan cavity with a fan assembly disposed therein. A first through hole and a second through hole are respectively disposed on the wall surface of the inner container and the wall surface of the fan cavity. The exhaust structure for an integrated stove includes:

[0007] An exhaust nozzle, the exhaust nozzle is sequentially arranged through the first through hole and the second through hole, and the exhaust nozzle is provided with an exhaust hole communicating with the inner tank and the fan cavity;

[0008] An elastic plate is located at an end surface of the exhaust nozzle close to the fan cavity. As the pressure difference between the fan cavity and the inner tank gradually increases, the elastic plate deforms and switches from a state of closing the exhaust hole to a state of gradually opening the exhaust hole.

[0009] As a preferred technical solution for the exhaust structure of the integrated stove, the elastic plate includes a plurality of fan-shaped blocks, and the plurality of fan-shaped blocks are arranged in sequence along the circumference of the exhaust nozzle.

[0010] As an optimal technical solution for the exhaust structure of the integrated stove, it also includes a sealing assembly, which includes a first sealing part and a second sealing part. The first sealing part is used to seal the gap between the exhaust nozzle and the first through hole, and the second sealing part is used to seal the gap between the exhaust nozzle and the second through hole.

[0011] As a preferred technical solution for the exhaust structure of the integrated stove, one end of the exhaust nozzle is provided with an outer flange, and the outer flange is located inside the inner pot;

[0012] The first sealing portion includes a sealing ring and a limiting member. The sealing ring is sleeved on the exhaust nozzle and located between the outer flange and the inner container wall. The limiting member is used to make the outer flange and the wall of the inner container press the sealing ring tightly.

[0013] As an optimal technical solution for the exhaust structure of the integrated stove, the limiting part is a locking nut, the outer peripheral wall of the exhaust nozzle close to the outer flange is provided with a threaded portion, and the locking nut is provided outside the inner pot and is screwed to the threaded portion.

[0014] As a preferred technical solution for the exhaust structure of the integrated stove, the wall surface of the outer flange opposite to the inner pot is provided with an annular groove around the axis of the exhaust nozzle, and the sealing ring is arranged in the annular groove.

[0015] As an optimal technical solution for the exhaust structure of integrated stoves, the second sealing part includes a sleeve and a sealing flange protruding from the outer peripheral wall of the sleeve, the sleeve is inserted into the second through hole, the sleeve is sleeved on the exhaust nozzle and has an interference fit with the exhaust nozzle, the sealing flange is pressed against the wall surface of the fan cavity to close the gap between the sleeve and the second through hole, and the elastic plate is arranged on one end face of the sleeve located in the fan cavity.

[0016] As a preferred technical solution for the exhaust structure of the integrated stove, the sealing flange is located between the inner pot and the fan cavity, and the sleeve is used to press tightly against the inner pot and / or the limiting member.

[0017] As a preferred technical solution for the exhaust structure for integrated stoves, the second sealing portion and the elastic plate are integrally formed rubber parts.

[0018] As a preferred technical solution for the exhaust structure for integrated stoves, the outer diameter of the sleeve is a, the inner diameter of the second through hole is b, the inner diameter of the sealing flange is c, and c≥b≥a.

[0019] The beneficial effects of the utility model are:

[0020] The utility model provides an exhaust structure for an integrated stove, which is used to connect the inner container of a steam oven with a fan chamber containing a fan assembly. A first through hole and a second through hole are respectively provided on the wall of the inner container and the wall of the fan chamber. The exhaust structure for the integrated stove includes an exhaust nozzle and an elastic plate. The exhaust nozzle is sequentially inserted through the first through hole and the second through hole, and the exhaust nozzle is provided with an exhaust hole connecting the inner container and the fan chamber. The elastic plate is located on an end surface of the exhaust nozzle near the fan chamber. As the pressure difference between the fan chamber and the inner container gradually increases, the elastic plate deforms and switches from a closed state to a gradually open state. When the integrated stove equipped with this exhaust structure is not in use, the elastic plate is in a closed state, preventing external air from flowing back into the inner container. When the steam oven is used alone or the steam oven and the fan assembly are used at the same time, as the steam accumulates in the inner tank, the pressure difference between the inner tank and the fan cavity gradually increases. At this time, the elastic part gradually undergoes elastic deformation, thereby causing part of the steam in the inner tank to be discharged to maintain a reasonable pressure range in the inner tank. Since the fan cavity generates a negative pressure, gas backflow will not occur. When the fan assembly works alone, a negative pressure is generated in the fan cavity. At this time, even if the elastic part opens the exhaust hole, gas backflow will not occur. Therefore, an integrated stove equipped with this exhaust structure can prevent external gas from backflowing into the inner tank, thereby avoiding the generation of odor and the growth of bacteria in the inner tank, which is beneficial to human health. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic structural diagram of the integrated stove exhaust structure, inner tank and fan cavity in an embodiment of the present utility model;

[0022] Figure 2 This is a schematic structural diagram of the exhaust structure for an integrated stove in an embodiment of the present utility model;

[0023] Figure 3 This is a schematic structural diagram of the exhaust nozzle and the sealing ring in an embodiment of the present utility model;

[0024] Figure 4 Schematic diagram of the structure of the second sealing portion (elastic plate sealing sleeve) in an embodiment of the present utility model;

[0025] Figure 5 This is a structural diagram of the second sealing portion in an embodiment of the present utility model (elastic plate with open sleeve).

[0026] In the picture:

[0027] 100, inner tank; 200, fan cavity; 201, second through hole; 300, fan assembly; 400, exhaust structure for integrated stove;

[0028] 1. Exhaust nozzle; 11. Exhaust hole; 12. Outer flange; 121. Annular groove;

[0029] 21. First sealing part; 211. Sealing ring; 212. Stopper; 22. Second sealing part; 221. Sleeve; 222. Sealing flange;

[0030] 223. Elastic plate; 2231. Fan-shaped block. DETAILED DESCRIPTION

[0031] The following is a clear and complete description of the technical solution of the present invention in conjunction with the accompanying drawings. Obviously, the embodiments described are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative efforts are within the scope of protection of the present invention.

[0032] In the description of the present invention, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and are not intended to indicate or imply that the devices or elements referred to must have a specific position, be constructed and operated in a specific position, and therefore should not be understood as limiting the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance. Among them, the terms "first position" and "second position" are two different positions, and the first feature being "above", "above" and "above" the second feature includes the first feature being directly above and obliquely above the second feature, or simply means that the first feature is at a higher level than the second feature. The first feature being "below", "below" and "below" the second feature includes the first feature being directly below and obliquely below the second feature, or simply means that the first feature is at a lower level than the second feature.

[0033] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections, electrical connections; direct connections, indirect connections through an intermediate medium, and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0034] The following describes embodiments of the present invention in detail. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended only to explain the present invention and are not to be construed as limiting the present invention.

[0035] like Figures 1 to 5 As shown, this embodiment provides an exhaust structure for an integrated stove, which is used to connect the inner pot 100 of the steam oven and the fan cavity 200 in which a fan assembly 300 is arranged. A first through hole and a second through hole 201 are respectively provided on the wall of the inner pot 100 and the wall of the fan cavity 200. The exhaust structure 400 for the integrated stove includes an exhaust nozzle 1 and a sealing assembly. The exhaust nozzle 1 is sequentially penetrated through the first through hole and the second through hole 201. The exhaust nozzle 1 is provided with an exhaust hole 11 connecting the inner pot 100 and the fan cavity 200; the sealing assembly includes a first sealing portion 21 and a second sealing portion 22. The first sealing portion 21 is used to seal the gap between the exhaust nozzle 1 and the first through hole, and the second sealing portion 22 is used to seal the gap between the exhaust nozzle 1 and the second through hole 201. When an integrated stove equipped with this exhaust structure is in use, the exhaust nozzle 1 has both ends sealed against the inner pot 100 and the fan cavity 200 by the first sealing portion 21 and the second sealing portion 22, respectively. Therefore, the gas generated during operation of the steam oven can only enter the fan cavity 200 through the exhaust hole 11. At this time, the fan assembly 300 within the fan cavity 200 is activated to discharge the gas generated during operation of the steam oven through the flue connected to the fan cavity 200. This exhaust structure is simple in structure. Furthermore, by utilizing the fan assembly 300 within the fan cavity 200 for exhaust, an exhaust assembly is eliminated, thereby reducing the production cost of the integrated stove.

[0036] Regarding the specific structure of the first sealing part 21, optionally, an outer flange 12 is provided at one end of the exhaust nozzle 1, and the outer flange 12 is located inside the inner liner 100; the first sealing part 21 includes a sealing ring 211 and a limiting member 212, the sealing ring 211 is sleeved on the exhaust nozzle 1 and is located between the outer flange 12 and the wall of the inner liner 100, and the limiting member 212 is used to make the outer flange 12 and the wall of the inner liner 100 press the sealing ring 211 tightly. In this embodiment, the outer diameter of the outer flange 12 is greater than the inner diameter of the first through hole. Therefore, the outer flange 12 is opposite to the wall of the inner liner 100 where the first through hole is located. The sealing ring 211 is sleeved on the exhaust nozzle 1 and is located between the outer flange 12 and the wall of the inner liner 100 where the first through hole is located. At this time, by adjusting the distance that the exhaust nozzle 1 extends into the first through hole, the outer flange 12 and the wall of the inner liner 100 where the first through hole are clamped to the sealing ring 211, thereby achieving the sealing ring 211 sealing the gap between the exhaust nozzle 1 and the first through hole. Finally, the exhaust nozzle 1 and the inner liner 100 are fixed relative to each other using the limiter 212 to maintain the outer flange 12 and the wall of the inner liner 100 where the first through hole are clamped to the sealing ring 211.

[0037] Regarding the specific structure of the stopper 212, the stopper 212 can optionally be a locking nut. A threaded portion is provided on the outer peripheral wall of the exhaust nozzle 1 on the side near the outer flange 12. The locking nut is disposed on the outside of the inner liner 100 and is threadedly engaged with the threaded portion. In this embodiment, by tightening the locking nut, the relative distance between the outer flange 12 and the inner liner 100 wall where the first through hole is provided can be adjusted, so that the outer flange 12 and the inner liner 100 wall where the first through hole is provided can clamp the sealing ring 211 tightly. In other embodiments, the limiting member 212 may also be an elastic clip, which is arranged on the exhaust nozzle 1. When the exhaust nozzle 1 is extended into the first through hole, the elastic clip extends from the side of the inner liner 100 wall where the first through hole is located away from the outer flange 12 and is clamped with the inner liner 100 wall where the first through hole is located. At this time, the outer flange 12 cannot move in the direction away from the inner liner 100 wall where the first through hole is located, and at this time, the outer flange 12 and the inner liner 100 wall where the first through hole is located clamp the sealing ring 211.

[0038] Optionally, an annular groove 121 is formed around the axis of the exhaust nozzle 1 on the wall surface of the outer flange 12 that faces the inner liner 100, and the sealing ring 211 is disposed within the annular groove 121. In this embodiment, when the outer flange 12 and the inner liner 100 wall where the first through hole is located clamp the sealing ring 211, the sealing ring 211 is susceptible to radial deformation, thereby entering the gap between the first through hole wall and the exhaust nozzle 1, or escaping the compression of the outer flange 12. To prevent this, the sealing ring 211 is disposed within the annular groove 121 to prevent radial deformation of the sealing ring 211.

[0039] Regarding the specific structure of the second sealing portion 22, optionally, the second sealing portion 22 includes a sleeve 221 and a sealing flange 222 protruding from the outer peripheral wall of the sleeve 221. The sleeve 221 is inserted into the second through hole 201. The sleeve 221 is sleeved on the exhaust nozzle 1 and has an interference fit with the exhaust nozzle 1. The sealing flange 222 abuts against the wall surface of the fan cavity 200 to close the gap between the sleeve 221 and the second through hole 201. In this embodiment, because the sleeve 221 is sleeved on the exhaust nozzle 1 and has an interference fit with the exhaust nozzle 1, the sleeve 221 remains relatively fixed to the exhaust nozzle 1 along its axial direction, thereby providing a pressing force for the sealing flange 222 to press against the wall surface of the fan cavity 200 where the second through hole 201 is provided.

[0040] Optionally, the sealing flange 222 is positioned between the inner liner 100 and the fan cavity 200, and the sleeve 221 is configured to abut against the inner liner 100 and / or the retaining member. In this embodiment, the sleeve 221 abuts against the inner liner 100, thereby ensuring that the sealing flange 222 abuts against the wall of the fan cavity 200, further enhancing the stability of the abutment between the sealing flange 222 and the wall of the fan cavity 200. When the sleeve 221 abuts against the retaining member 212, since the retaining member 212 is a locking nut, this arrangement can prevent the retaining member 212 from loosening.

[0041] Optionally, the integrated stove exhaust structure 400 further includes an elastic plate 223, which is disposed on one end surface of the sleeve 221 located within the fan cavity 200. As the pressure differential between the fan cavity 200 and the inner pot 100 gradually increases, the elastic plate 223 deforms and switches from a closed state to a gradually open state. In this embodiment, when the steam oven and the fan assembly 300 are operating simultaneously, the pressure differential between the fan cavity 200 and the inner pot 100 increases, causing the elastic plate 223 to open the exhaust hole 11. Gas within the steam oven can now enter the fan cavity 200 through the exhaust nozzle 1 and the sleeve. When both the steam oven and the fan assembly 300 are closed, the pressure differential between the fan cavity 200 and the inner pot 100 reaches zero, and the elastic plate 223 closes the exhaust hole 11. When the fan assembly 300 operates alone, negative pressure is generated within the fan chamber 200. Even if the elastic member 223 opens the exhaust hole, gas backflow will not occur. This arrangement prevents gas from flowing back into the inner container 100, thereby preventing the generation of odors within the oven cavity and the breeding of bacteria, which could harm health.

[0042] Preferably, the elastic plate 223 includes a plurality of sector blocks 2231, which are arranged on one end surface of the sleeve 221 along the circumference of the sleeve 221. In this embodiment, the elastic plate 223 is composed of a plurality of sector blocks 2231, which can reduce the pressure difference between the fan cavity 200 and the inner liner 100 required to open the sleeve.

[0043] Optionally, the second sealing portion 22 and the elastic plate 223 are integrally formed rubber parts. In this embodiment, the second sealing portion 22 and the elastic plate 223 are both high temperature resistant and integrally formed.

[0044] Optionally, the outer diameter of sleeve 221 is a, the inner diameter of second through hole 201 is b, and the inner diameter of sealing flange 222 is c, where c ≥ b ≥ a. In this embodiment, this design can avoid assembly defects caused by misalignment between the rear panel of liner 100 and the through hole of the fan front panel due to cumulative assembly errors, while also ensuring sealing and preventing the extracted gas from flowing back to the outside of liner 100 and affecting other components.

[0045] Obviously, the above embodiments of the present invention are merely examples for the purpose of clearly illustrating the present invention, and are not intended to limit the implementation methods of the present invention. Those skilled in the art will appreciate that other variations or modifications can be made based on the above description. It is not necessary and impossible to enumerate all implementation methods here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the claims of the present invention.

Claims

1. An exhaust structure for an integrated stove, used to connect an inner pot (100) of a steam oven to a fan cavity (200) having a fan assembly (300) disposed therein, characterized in that: A first through hole and a second through hole (201) are respectively provided on the wall surface of the inner pot (100) and the wall surface of the fan cavity (200), and the exhaust structure (400) for the integrated stove comprises: An exhaust nozzle (1), the exhaust nozzle (1) being sequentially disposed through the first through hole and the second through hole (201), the exhaust nozzle (1) being provided with an exhaust hole (11) communicating with the inner container (100) and the fan cavity (200); An elastic plate (223), the elastic plate (223) being located on an end surface of the exhaust nozzle (1) close to the fan cavity (200), and as the pressure difference between the fan cavity (200) and the inner liner (100) gradually increases, the elastic plate (223) is deformed and switches from a state of closing the exhaust hole (11) to a state of gradually opening the exhaust hole (11).

2. The exhaust structure for an integrated stove according to claim 1, characterized in that: The elastic plate (223) comprises a plurality of sector-shaped blocks (2231), and the plurality of sector-shaped blocks (2231) are arranged in sequence along the circumference of the exhaust nozzle (1).

3. The exhaust structure for an integrated stove according to claim 1, characterized in that: It also comprises a sealing assembly, the sealing assembly comprising a first sealing portion (21) and a second sealing portion (22), the first sealing portion (21) being used to seal the gap between the exhaust nozzle (1) and the first through hole, and the second sealing portion (22) being used to seal the gap between the exhaust nozzle (1) and the second through hole (201).

4. The exhaust structure for an integrated stove according to claim 3, characterized in that: One end of the exhaust nozzle (1) is provided with an outer flange (12), and the outer flange (12) is located inside the inner liner (100); The first sealing portion (21) comprises a sealing ring (211) and a limiting member (212); the sealing ring (211) is sleeved on the exhaust nozzle (1) and is located between the outer flange (12) and the wall of the inner liner (100); the limiting member (212) is used to enable the outer flange (12) and the wall of the inner liner (100) to press the sealing ring (211) tightly.

5. The exhaust structure for an integrated stove according to claim 4, characterized in that: The limiting member (212) is a locking nut, and a threaded portion is provided on the outer peripheral wall of the exhaust nozzle (1) on the side close to the outer flange (12). The locking nut is arranged outside the inner shell (100) and is threadedly connected to the threaded portion.

6. The exhaust structure for an integrated stove according to claim 4, characterized in that: An annular groove (121) is formed on the wall surface of the outer flange (12) opposite to the inner liner (100) around the axis of the exhaust nozzle (1), and the sealing ring (211) is arranged in the annular groove (121).

7. The exhaust structure for an integrated stove according to claim 4, characterized in that: The second sealing portion (22) comprises a sleeve (221) and a sealing flange (222) protruding from the outer peripheral wall of the sleeve (221); the sleeve (221) is inserted into the second through hole (201); the sleeve (221) is sleeved on the exhaust nozzle (1) and has an interference fit with the exhaust nozzle (1); the sealing flange (222) is tightly pressed against the wall surface of the fan cavity (200) to close the gap between the sleeve (221) and the second through hole (201); the elastic plate (223) is arranged on an end surface of the sleeve (221) located in the fan cavity (200).

8. The exhaust structure for an integrated stove according to claim 7, characterized in that: The sealing flange (222) is located between the inner liner (100) and the fan cavity (200), and the sleeve (221) is used to tightly abut against the inner liner (100) and / or the limiting member (212).

9. The exhaust structure for an integrated stove according to claim 7, characterized in that: The second sealing portion (22) and the elastic plate (223) are integrally formed rubber parts.

10. The exhaust structure for an integrated stove according to claim 7, characterized in that: The outer diameter of the sleeve (221) is a, the inner diameter of the second through hole (201) is b, the inner diameter of the sealing flange (222) is c, and c≥b≥a.

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