Smoke exhaust air duct structure of integrated cooker and integrated cooker comprising smoke exhaust air duct structure

Abstract

The utility model provides a smoke exhaust air duct structure of integrated stove and the integrated stove including the same, including fan shell and exhaust shell, exhaust shell and fan shell are connected, exhaust shell is equipped with first air duct and second air duct that are communicated with fan shell, also be equipped with flexible diversion baffle, and the first air duct and second air duct are communicated with fan shell. The flow guide baffle comprises a movable end and a blocking end along the periphery, the movable end moves between the two sides of the outlet of the fan shell, the blocking end is attached to the inner wall of the exhaust shell, when the movable end is located on one side of the outlet, the flow guide baffle blocks a passage between the first air channel and the outlet, and when the movable end is located on the other side of the outlet, the flow guide baffle blocks the passage between the first air channel and the outlet. And the diversion baffle blocks a passage between the second air duct and the outlet. According to the smoke exhaust air duct structure of the integrated stove and the integrated stove comprising the smoke exhaust air duct structure, flow guide of exhausted smoke is achieved, the flow guide switching structure of the two air ducts is simple, operation is convenient, the switching mode is flexible and reliable, the distribution uniformity of the smoke air volume in the two air ducts is improved, and smoke exhaust noise is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of gas stoves, and in particular to a smoke exhaust duct structure of an integrated stove and an integrated stove comprising the same. Background Art

[0002] In existing integrated stoves, the left and right air outlet solutions used to exhaust smoke are mostly multi-blade centrifugal fans plus T-shaped two-way air ducts. The disadvantages of this air outlet solution are large flow loss, low outlet wind speed, uneven air volume distribution in the left and right air ducts, resulting in large speed differences in the same gear, high noise of the whole machine, and low efficiency. It is impossible to meet the performance index requirements of left and right air outlets at the same time.

[0003] In order to evenly distribute the air volume in the left and right air ducts, a flow guide structure is usually set in the air duct. For example, the existing patent CN211822585U discloses a smoke exhaust structure, which includes a bellows and an air duct. The bellows includes a smoke inlet and a smoke outlet. A centrifugal fan is installed in the bellows. The centrifugal fan includes a volute, a motor and other components. Under the action of the centrifugal fan, the smoke is discharged from the air outlet of the centrifugal fan and enters the air duct. The air duct is an exhaust shell with a box-shaped structure, which has two left and right smoke exhaust ports, and two smoke exhaust ducts are formed inside. A smoke guide plate is provided in the shell of the air duct. The smoke guide plate is a rotating part with a fan-shaped structure. Through the rotation of the smoke guide plate, two different smoke exhaust ducts are switched in the shell of the air duct to discharge smoke from the left and right smoke exhaust ports as needed.

[0004] However, the existing smoke guide plate has a complex structure and is inconvenient to operate; the smoke guide plate may not be able to form an effective guide switch due to incomplete rotation, affecting the uniformity of the left and right air volume distribution; due to its rigid structure, the curvature of the arc-shaped guide surface of the smoke guide plate cannot be adjusted accordingly according to the needs of the left and right smoke exhaust duct air volume distribution, which will also affect the uniformity of the left and right air volume distribution. Utility Model Content

[0005] The technical problem to be solved by the utility model is to overcome the defects of the integrated stove in the prior art, such as the complex smoke exhaust and smoke guiding structure, the difficulty in adjusting the air volume distribution of the left and right air ducts, and the poor uniformity, and to provide a smoke exhaust duct structure for an integrated stove and an integrated stove including the same.

[0006] The utility model solves the above technical problems through the following technical solutions:

[0007] A smoke exhaust duct structure for an integrated stove, the smoke exhaust duct structure comprising a fan housing and an exhaust housing, the fan housing being provided with a fan, the exhaust housing being connected to the fan housing at the outlet of the fan housing, the exhaust housing being provided with a first air duct and a second air duct connected to the fan housing, the exhaust housing being further provided with a flexible guide baffle, the guide baffle comprising a movable end and a blocking end along the four sides, the movable end moving between two sides at the outlet of the fan housing, the blocking end being fitted with an inner wall of the exhaust housing, wherein when the movable end is at one side of the outlet, the guide baffle blocks the passage between the first air duct and the outlet, and when the movable end is at the other side of the outlet, the guide baffle blocks the passage between the second air duct and the outlet.

[0008] In this scheme, the smoke exhaust duct structure guides the smoke discharged from the outlet of the fan housing through the above-mentioned guide baffle, and then blocks one of the air ducts so that the smoke is discharged from the other air duct, thereby improving the uniformity of the air flow in the air duct, reducing vortexes, and reducing noise. In addition, the guide baffle keeps the blocking end in contact with the inner wall of the exhaust housing, and only needs to move the movable end to achieve the diversion switching of the two air ducts (the first air duct and the second air duct). Such a diversion switching structure is simple and easy to operate; and the moving distance of the movable end or whether the movement is in place is easy to control, and the switching method is flexible and reliable, which is conducive to improving the uniformity of the distribution of smoke air volume in the two air ducts. By using a flexible guide baffle, the shape of the guide baffle can be adjusted according to the needs of the diversion effect and the uniformity of the air volume distribution, further improving the uniformity of the air volume distribution. Among them, the blocking end is fitted with the inner wall of the exhaust housing to form a relative seal, and the exhaust will not leak, so that the smoke exhaust is stable and it is conducive to reducing noise.

[0009] Preferably, the guide baffle is made of a flexible material, and / or the guide baffle includes a plurality of small plates movably connected to each other.

[0010] In this solution, the guide baffle can achieve a flexible effect by using a flexible material and / or by movably connecting a plurality of small plates to each other.

[0011] Preferably, the guide baffle is an arc-shaped plate, and when the movable end moves to one side of the outlet, the middle part of the guide baffle protrudes to the corresponding one side, and when the movable end moves to the other side of the outlet, the middle part of the guide baffle protrudes to the corresponding other side.

[0012] In this solution, the guide baffle is an arc-shaped plate, the middle part of which protrudes to the corresponding one side or the other side, thereby increasing the air duct space connecting the first air duct or the second air duct with the outlet of the fan housing, reducing the impact of the airflow, and helping to reduce noise.

[0013] Preferably, the exhaust housing is provided with at least one slide groove on the surface in the thickness direction, and at least one of the slide grooves is close to the outlet of the fan housing; the guide baffle is provided with a sliding member at the movable end, part of the sliding member is placed in the slide groove and is slidably connected to the slide groove, and part of the sliding member extends out of the surface of the exhaust housing for the operator to drive the sliding member to slide in the slide groove; the movable end of the guide baffle slides between the two sides of the outlet through the slide groove.

[0014] In this solution, the guide baffle realizes reversal through the cooperation of the sliding member and the slide groove, and the reversal is realized in a sliding manner, the reversal operation is convenient, the reversal is not likely to be in place, and the reversal operation is more reliable. Part of the sliding member extends out of the surface of the exhaust housing to form a handle for the operator to drive the sliding member.

[0015] Preferably, the exhaust housing is provided with two slide grooves on the surface in the thickness direction, and the two slide grooves are parallel to the cross section of the fan housing at the outlet.

[0016] In this solution, the two parallel sliding grooves make the movement of the guide baffle more stable, which is beneficial to the uniformity of air volume distribution.

[0017] Preferably, the smoke exhaust duct structure further includes a slide groove seal, which cooperates with the slide groove and is used to seal the slide groove after the guide baffle slides to a specified position.

[0018] In this solution, the sealing of the slide groove is achieved through the cooperation between the slide groove seal and the slide groove, ensuring that smoke will not leak from the slide groove, which is beneficial to the stability of the air volume and the reduction of noise.

[0019] Preferably, the guide baffle is provided with a plurality of small holes, and / or the guide baffle is sandwiched with sound absorbing material.

[0020] In this solution, several small holes are opened on the guide baffle, which is conducive to the stability of airflow and improves the noise reduction effect. Sound-absorbing materials are sandwiched in the guide baffle to reduce the impact of airflow, achieve precise noise reduction, and improve the noise reduction effect without affecting the aerodynamic performance of the fan.

[0021] Preferably, elastic sealing members are provided at the edges of the two end surfaces of the guide baffle perpendicular to the height direction and in contact with the exhaust housing.

[0022] In this solution, the elastic seals are used to seal the two end faces of the guide baffle perpendicular to the height direction, which is conducive to stabilizing the airflow and reducing noise. The elastic effect of the seals is also conducive to reducing airflow impact and noise.

[0023] Preferably, the smoke exhaust duct structure also includes an outer shell, which has a frame for accommodating the fan housing and the exhaust housing and a back panel connected to one side of the frame, and a reversing door is provided on the back panel in an area relative to the guide baffle, and the reversing door is used for a user to reach into the frame and adjust the position of the guide baffle.

[0024] In this solution, the diversion baffle is easily operated by the above-mentioned reversing door.

[0025] An integrated stove comprises the smoke exhaust duct structure of the integrated stove as described above.

[0026] In this solution, the integrated stove realizes the diversion of exhaust smoke through the above-mentioned smoke exhaust duct structure, and the diversion switching structure of the two ducts is simple, easy to operate, and the switching method is flexible and reliable, which improves the uniformity of smoke volume distribution in the two ducts and reduces smoke exhaust noise.

[0027] The positive progressive effect of the utility model is that the smoke exhaust duct structure of the integrated stove and the integrated stove including the same realize the diversion of the exhaust smoke, and the diversion switching structure of the two air ducts is simple, easy to operate, and the switching method is flexible and reliable, which improves the uniformity of the smoke volume distribution in the two air ducts and reduces the smoke exhaust noise. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a front view of the smoke exhaust duct structure of Example 1 of the utility model.

[0029] Figure 2 It is a rear view of the smoke exhaust duct structure of Example 1 of the utility model.

[0030] Figure 3 This is a schematic diagram of the structure of the smoke exhaust duct structure of Example 1 of the utility model after removing the outer shell.

[0031] Figure 4 This is a three-dimensional structural diagram of the smoke exhaust duct structure of Example 1 of the utility model after removing the outer shell.

[0032] Figure 5 for Figure 3 Left view of .

[0033] Figure 6 for Figure 5 Cross-sectional view along AA direction.

[0034] Figure 7 for Figure 5 Cross-sectional view along direction BB.

[0035] Figure 8 This is a schematic structural diagram of the guide baffle of Example 1 of the utility model.

[0036] Description of reference numerals:

[0037] Smoke exhaust duct structure 1

[0038] Fan 8

[0039] Fan housing 2

[0040] Outlet 21 of fan housing

[0041] Exhaust duct of fan 22

[0042] Impeller 3

[0043] Exhaust housing 4

[0044] Thickness direction of exhaust shell C

[0045] First air duct 41

[0046] Second air duct 42

[0047] First exhaust outlet 43

[0048] Second exhaust outlet 44

[0049] Guide baffle 5

[0050] Activity terminal 51

[0051] Blocking end 52

[0052] Small board 53

[0053] First chute 54

[0054] Reserved notch 541

[0055] Second chute 55

[0056] Small hole 56

[0057] Slider 6

[0058] Slider 61

[0059] Cylindrical rod 62

[0060] Housing 7

[0061] Frame 71

[0062] Back panel 72

[0063] Reversing door 721 DETAILED DESCRIPTION

[0064] A preferred embodiment is given below, and the present invention is described more clearly and completely in conjunction with the accompanying drawings.

[0065] Example 1

[0066] The present embodiment provides a smoke exhaust duct structure 1 of an integrated stove, which is used to exhaust smoke generated by the integrated stove and exhaust it alternately from two ducts.

[0067] like Figure 1-8 As shown, the smoke exhaust duct structure 1 includes a fan housing 2 and an exhaust housing 4. A fan 8 is provided in the fan housing 2. The exhaust housing 4 is connected to the fan housing 2 at the outlet 21 of the fan housing. A first air duct 41 and a second air duct 42 connected to the fan housing 2 are provided in the exhaust housing 4.

[0068] A flexible guide baffle 5 is also provided in the exhaust housing 4. The guide baffle 5 includes a movable end 51 and a blocking end 52 along the four sides. The movable end 51 moves between the two sides of the outlet 21 of the fan housing, and the blocking end 52 is fitted with the inner wall of the exhaust housing 4. When the movable end 51 is on one side of the outlet 21, the guide baffle blocks the passage between the first air duct 41 and the outlet 21. When the movable end 51 is on the other side of the outlet 21, the guide baffle blocks the passage between the second air duct 42 and the outlet 21.

[0069] Specifically, in this embodiment, the fan housing 2 is a sheet metal housing in the shape of a snail shell, and is therefore also called a volute. The fan 8 and the impeller 3 are sequentially installed in the volute from the center to the outside. The volute-shaped duct space around the impeller 3 is the exhaust passage 22 of the fan. The smoke sucked in by the fan 8 is driven by the impeller 3 and discharged from the exhaust passage 22. The end of the exhaust passage 22 is the outlet 21 of the fan housing, and the smoke is discharged from there and enters the exhaust housing 4. The exhaust housing 4 is also a sheet metal housing. The inlet of the exhaust housing 4 is tightly connected to the outlet 21 of the fan housing. The exhaust housing 4 has two exhaust outlets in different directions, namely, a first exhaust outlet 43 (e.g., a left exhaust outlet) and a second exhaust outlet 44 (e.g., a right exhaust outlet). The air ducts corresponding to the two exhaust outlets in the exhaust housing 4 are the first air duct 41 (e.g., a left air duct) and the second air duct 42 (e.g., a right air duct). The flexible guide baffle 5 is specifically formed by a plurality of sheet metal small plates 53 hinged to each other, and the hinged small plates 53 can be flexibly bent to have a certain flexibility; the guide baffle 5 is arranged in the exhaust housing 4, and its movable end 51 is arranged at the entrance of the exhaust housing 4, that is, the outlet 21 of the fan housing, and can move between the left and right sides of the outlet 21; the blocking end 52 is arranged on the inner wall of the exhaust housing 4 relative to the outlet 21 of the fan housing, and fits with the inner wall of the exhaust housing 4. When the movable end 51 moves to the left side of the outlet 21, the guide baffle 5 blocks the first air duct 41 (i.e., the left air duct) and the channel at the outlet 21, ensuring that the airflow flows to the second air duct 42 (i.e., the right air duct) and is discharged. Similarly, when the movable end 51 moves to the right side of the outlet 21, the guide baffle 5 blocks the second air duct 42 (i.e., the right air duct) and the channel at the outlet 21, ensuring that the airflow flows to the first air duct 41 (i.e., the left air duct) and is discharged.

[0070] The exhaust air duct structure 1 guides the smoke discharged from the outlet 21 of the fan housing through the above-mentioned guide baffle 5, and then blocks one of the air ducts so that the smoke is discharged from the other air duct, thereby improving the uniformity of the air flow in the air duct, reducing vortex and reducing noise. In addition, the guide baffle 5 only needs to move its movable end 51 to achieve the diversion switching of the two air ducts (the first air duct 41 and the second air duct 42) by keeping the blocking end 52 in contact with the inner wall of the exhaust housing. Such a diversion switching structure is simple and easy to operate; and the moving distance of the movable end 51 or whether it moves in place is easy to control, and the switching method is flexible and reliable, which is conducive to improving the uniformity of the distribution of the smoke air volume in the two air ducts. By using a flexible guide baffle 5, the shape of the guide baffle 5 can be adjusted according to the needs of the diversion effect and the uniformity of the air volume distribution, further improving the uniformity of the air volume distribution. Among them, the blocking end 52 is fitted with the inner wall of the exhaust housing 4 to form a relative seal, and the exhaust will not leak, so that the smoke exhaust is stable and it is conducive to reducing noise.

[0071] In this embodiment, the guide baffle includes a plurality of small plates 53 that are movably hinged to each other, and can be flexibly bent by hinges to achieve a flexible effect. However, in other embodiments, there are many ways for the guide baffle 5 to achieve a flexible effect. For example, the guide baffle 5 can also achieve its flexible effect by selecting a flexible material. When selecting a flexible material, the guide baffle 5 can be an integral plate-shaped structural member, or it can be composed of a plurality of small plates 53 of a flexible material that are movably connected to each other; and the appropriate flexible material, as well as the shape and size of the baffle, etc., can be selected according to the desired effect. Therefore, the guide baffle 5 can achieve a flexible effect by using a flexible material and / or by movably connecting a plurality of small plates 53 to each other.

[0072] like Figure 6-8 As shown, the guide baffle 5 is bent into an arc-shaped plate. When the movable end 51 moves to one side (e.g., the left side) of the outlet 21, the middle part of the guide baffle 5 protrudes toward the corresponding side (i.e., the left side); and when the movable end 51 moves to the other side (e.g., the right side) of the outlet 21, the middle part of the guide baffle 5 protrudes toward the corresponding other side (i.e., the right side). Compared with a straight or concave baffle, the guide baffle 5 adopts an arc-shaped plate, the middle part of which protrudes toward the corresponding one side or the other side, thereby increasing the air duct space connecting the first air duct 41 or the second air duct 42 with the outlet 21 of the fan housing, making it easier for smoke to pass through with less resistance, thereby reducing the impact of the airflow and helping to reduce noise.

[0073] When applied, combined with the specific shape and structure of the exhaust housing 4, by adjusting the curvature of the guide baffle 5, the flow effect of the two air ducts during air outlet can be further improved and the noise can be reduced. In the right air outlet state, the guide baffle 5 can effectively block the airflow on the left side, so that the resistance of the guide structure in the right air outlet state is the largest, ensuring that the airflow flows to the right side, thereby reducing vortex noise and improving the aerodynamic performance of the right air outlet. In the left air outlet state, by adjusting the guide baffle 5, the arc radius R satisfies: 240≤R≤260mm, so that in the left air outlet state, the resistance of the guide arc segment is the smallest, and the airflow flows out of the left air outlet cover more smoothly. At the same time, the arc guide can effectively reduce the airflow impact noise, which is beneficial to improving the performance of the whole machine.

[0074] Among them, at least one slide groove is provided on the surface of the exhaust shell 4 in the thickness direction C, and at least one slide groove is close to the outlet 21 of the fan shell; the guide baffle 5 is provided with a sliding member 6 at the movable end 51, part of the sliding member 6 is placed in the slide groove and is slidably connected to the slide groove, and part of the sliding member 6 extends out of the surface of the exhaust shell 4, so that the operator drives the sliding member 6 to slide in the slide groove; the movable end 51 of the guide baffle 5 slides between the two sides of the outlet 21 through the slide groove.

[0075] Specifically, Figure 5-7 As shown, in this embodiment, the exhaust housing 4 is provided with two slide grooves on the surface in the thickness direction, namely, a first slide groove 54 and a second slide groove 55. The first slide groove 54 is provided near the outlet 21 of the fan housing and is parallel to the cross section of the fan housing 2 at the outlet 21. The two ends of the first slide groove 54 correspond to the left and right sides of the outlet 21 of the fan housing 2; for ease of operation, in this embodiment, the first slide groove 54 reserves a small section of a reserved notch 541 on its right side. The second slide groove 55 is provided at the middle position in the exhaust housing 4 and is parallel to the first slide groove 54, that is, the second slide groove 55 is also parallel to the cross section of the fan housing 2 at the outlet 21. Among them, the first slide groove 54 is relatively long, and preferably, its length L1 satisfies the condition: L3 ≥ L1, L3 is the outlet width of the first air duct 41, and the cross-sectional area of ​​the air duct inlet (that is, the outlet 21 of the fan housing) is larger than the cross-sectional area of ​​the air duct outlet, which can effectively reduce the smoke flow loss, and the smoke discharge has no resistance and is not easy to generate noise. The second chute 55 is shorter, and its length L2 satisfies the condition: 2 / 5L1≤L2≤4 / 5L1, where the preferred length of L2 is 0.65L1; based on such a condition, a preferred numerical range for practical application is: 200≤L2≤210mm. The sliding member 6 includes a slider 61 and a cylindrical rod 62 welded on the surface of the slider 61. The slider 61 cooperates with the first chute 54 and can slide freely; the cylindrical rod 62 extends out of the surface of the exhaust housing 4, and the operator can hold or pinch the cylindrical rod 62 to push the slider 61 to slide in the first chute 54. The push of the cylindrical rod 62 enables the movable end 51 of the guide baffle 5 to slide between the two ends of the first chute 54.

[0076] In such a structure, the guide baffle 5 realizes reversal through the cooperation of the sliding member 6 and the slide groove, and the reversal is realized in a sliding manner, which is convenient for reversal operation, reduces the difficulty of operation and labor cost; it is not easy to have the situation of incomplete reversal, and the reversal operation is more reliable. Part of the sliding member 6 extends out of the surface of the exhaust housing 4 to form a handle for the operator to drive the sliding member 6.

[0077] In this embodiment, both surfaces in the thickness direction C of the exhaust housing 4 have two slide grooves. Through the two parallel slide grooves, the movement of the guide baffle 5 is smoother, which is beneficial to the uniformity of air volume distribution. However, in other embodiments, according to the effect or the need of sliding operation, only one of the two surfaces in the thickness direction C of the exhaust housing 4 may have a slide groove, and the other surface may not have a slide groove or adopt other structural forms to cooperate with the side of the guide baffle 5. In addition, the number of slide grooves can also be one. When there is only one, the slide groove is arranged at the outlet 21 of the fan housing; the number of slide grooves can also be greater than two. Through multiple slide grooves, the sliding is smoother and the sliding position is more accurate. Accordingly, the number of sliding members 6 can also be adjusted accordingly as needed.

[0078] The exhaust duct structure 1 further includes a slide groove seal (not shown in the figure), which cooperates with the slide groove and is used to seal the slide groove after the guide baffle 5 slides to a specified position. In this embodiment, the slide groove seal is specifically a rubber pad, which can effectively block the slide groove. Through the cooperation between the slide groove seal and the slide groove, the slide groove is sealed to ensure that smoke will not leak from the slide groove, which is conducive to the stability of the air volume and reduces noise.

[0079] Among them, the guide baffle 5 is provided with a plurality of small holes 56. In this embodiment, the diameter of the small holes 56 is designed to be 1-3 mm, preferably 2.5 mm, and the opening rate is not less than 15%. By providing a plurality of small holes 56, it is beneficial to stabilize the airflow and improve the noise reduction effect. The diameter and number of the small holes 56 can be adjusted accordingly according to actual needs.

[0080] Sound-absorbing material (not shown in the figure) is sandwiched in the guide baffle 5. The sound-absorbing material is specifically sound-absorbing cotton, which can reduce the impact of airflow. It is a passive noise reduction method. By adopting this passive noise reduction method at the point where the airflow impact noise is the largest, precise noise reduction is achieved, and while improving the noise reduction effect, it does not affect the aerodynamic performance of the fan 8.

[0081] The edges of the two end faces of the guide baffle 5 perpendicular to the height direction that contact the exhaust shell 4 are provided with elastic seals (not shown in the figure). The elastic seals are specifically elastic rubber pads, which can effectively seal the contact surface with the exhaust shell 4, which is beneficial to reduce the impact of airflow, stabilize the airflow, reduce the vibration noise between the guide baffle 5 and the exhaust shell 4, and improve the user experience.

[0082] like Figure 1-2 As shown, the smoke exhaust duct structure 1 also includes a housing 7 (i.e., a box body of the fan 8), the housing 7 has a frame 71 for accommodating the fan housing 2 and the exhaust housing 4, and a back plate 72 connected to one side of the frame 71, and a reversing door 721 is provided on the back plate 72 at a region relative to the guide baffle 5, and the reversing door 721 is used for a user to reach into the frame 71 to adjust the position of the guide baffle 5. The reversing door 721 facilitates the operation of the guide baffle 5.

[0083] In this embodiment, the guide baffle 5 is placed at the right side of the two air ducts by default when leaving the factory, which is suitable for the user to have the air outlet on the left. When the user needs to have the air outlet on the right, the reversing door 721 on the back plate 72 is opened, the rubber pad of the slide groove (i.e., the slide groove seal) is removed, the sliding member 6 is pushed out of the right reserved notch 541, enters the slide groove, and the sliding member 6 is pushed to the designated position on the left, and the slide groove is sealed with the rubber pad, which is suitable for the user to have the air outlet on the right.

[0084] Example 2

[0085] The present embodiment provides an integrated stove, which includes a smoke exhaust duct structure 1 as in embodiment 1. The integrated stove implements the flow diversion of exhaust smoke by applying the smoke exhaust duct structure 1 in embodiment 1, and the flow diversion switching structure of the two ducts is simple, easy to operate, and the switching method is flexible and reliable, which improves the uniformity of the distribution of smoke volume in the two ducts and reduces the smoke exhaust noise.

[0086] Although the specific implementations of the utility model are described above, those skilled in the art should understand that this is only an example, and the protection scope of the utility model is defined by the attached claims. Those skilled in the art can make various changes or modifications to these implementations without departing from the principle and essence of the utility model, but these changes and modifications fall within the protection scope of the utility model.

Claims

1. A smoke exhaust duct structure of an integrated stove, the smoke exhaust duct structure comprising a fan housing and an exhaust housing, the fan housing is provided with a fan, the exhaust housing is connected to the fan housing at the outlet of the fan housing, the exhaust housing is provided with a first duct and a second duct connected to the fan housing, characterized in that: A flexible guide baffle is also provided in the exhaust housing, and the guide baffle includes a movable end and a blocking end along the four sides, the movable end moves between the two sides of the outlet of the fan housing, and the blocking end is fitted with the inner wall of the exhaust housing, wherein when the movable end is on one side of the outlet, the guide baffle blocks the passage between the first air duct and the outlet, and when the movable end is on the other side of the outlet, the guide baffle blocks the passage between the second air duct and the outlet.

2. The smoke exhaust duct structure of the integrated stove according to claim 1, characterized in that: The guide baffle is made of a flexible material, and / or the guide baffle includes a plurality of small plates movably connected to each other.

3. The smoke exhaust duct structure of the integrated stove according to claim 1, characterized in that: The guide baffle is an arc-shaped plate. When the movable end moves to one side of the outlet, the middle part of the guide baffle protrudes to the corresponding one side. When the movable end moves to the other side of the outlet, the middle part of the guide baffle protrudes to the corresponding other side.

4. The smoke exhaust duct structure of the integrated stove according to claim 1, characterized in that: The exhaust housing is provided with at least one slide groove on the surface in the thickness direction, and at least one of the slide grooves is close to the outlet of the fan housing; The guide baffle is provided with a sliding part at the movable end, part of the sliding part is placed in the slide groove and is slidably connected to the slide groove, and part of the sliding part extends out of the surface of the exhaust shell so that the operator can drive the sliding part to slide in the slide groove; the movable end of the guide baffle slides between the two sides of the outlet through the slide groove.

5. The smoke exhaust duct structure of the integrated stove according to claim 4, characterized in that: The exhaust housing is provided with two slide grooves on the surface in the thickness direction, and the two slide grooves are parallel to the cross section of the fan housing at the outlet.

6. The smoke exhaust duct structure of the integrated stove according to claim 4, characterized in that: The smoke exhaust duct structure further includes a slide groove seal, which cooperates with the slide groove and is used to seal the slide groove after the guide baffle slides to a specified position.

7. The smoke exhaust duct structure of the integrated stove according to claim 1, characterized in that: The guide baffle is provided with a plurality of small holes, and / or the guide baffle is provided with sound absorbing material.

8. The smoke exhaust duct structure of the integrated stove according to claim 1, characterized in that: Elastic sealing members are arranged on the edges of the two end surfaces of the guide baffle plate perpendicular to the height direction and in contact with the exhaust housing.

9. The smoke exhaust duct structure of the integrated stove according to claim 1, characterized in that: The smoke exhaust duct structure also includes an outer shell, which has a frame for accommodating the fan housing and the exhaust housing and a back panel connected to one side of the frame. A reversing door is provided on the back panel in an area relative to the guide baffle, and the reversing door is used for a user to reach into the frame and adjust the position of the guide baffle.

10. An integrated stove, characterized in that: The integrated stove comprises the smoke exhaust duct structure of the integrated stove as described in any one of claims 1 to 9.

Images