Smoke collecting structure and oil fume treatment device

Abstract

The utility model provides a kind of smoke collecting structure and oil fume treatment device, it is related to the technical field of kitchen appliance, smoke collecting structure includes smoke collecting cover and steering air duct;Smoke collecting cover includes front plate and top plate;Top plate is provided with assembly opening;Steering air duct includes import and export, and the steering flow passage that intercommunication import and export;Front plate is relatively horizontal plane and is arranged obliquely, and front plate is provided with air inlet;The inside wall of front plate is provided with first oil guide strip, first oil guide strip is located above air inlet, the length of first oil guide strip in left and right direction is greater than or equal to the length of air inlet in left and right direction, to avoid from the oil dirt that flows down above first oil guide strip enters into air inlet;Steering air duct includes upper cover plate, the inner wall of upper cover plate is inclined plane, the front edge of upper cover plate is connected with front plate, and the front edge of upper cover plate is lower than the rear edge of upper cover plate;The oil dirt drop position of upper cover plate is projected downward on front plate, and is located above first oil guide strip position.

Description

Technical Field

[0001] This utility model relates to the field of kitchen appliance technology, and in particular to a smoke collection structure and oil fume treatment device. Background Technology

[0002] Existing range hoods include a smoke collection hood and a duct housing connected to the smoke collection hood. After the fumes enter the smoke collection hood through the smoke inlet, they flow into the duct housing and are finally discharged from the exhaust port on the duct housing.

[0003] The existing duct casing is prone to grease buildup, which drips from the smoke inlet onto the stovetop, affecting cooking. Utility Model Content

[0004] The purpose of this invention is to provide a smoke collection structure and an oil fume treatment device to alleviate the technical problem that existing oil fume treatment devices are prone to dripping oil stains from the air inlet.

[0005] In a first aspect, the present invention provides a smoke collection structure, comprising: a smoke collection hood and a deflecting air duct; the smoke collection hood includes a front plate and a top plate; the top plate is provided with an assembly opening; The diverting air duct includes an inlet and an outlet that are oriented at an angle, as well as a diverting flow channel that connects the inlet and the outlet. The inlet is connected to the assembly port, and the outlet is used for smoke exhaust. The front panel is inclined relative to the horizontal plane and has an air inlet. A first oil guide strip is provided on the inner side wall of the front panel. The first oil guide strip is located above the air inlet. The length of the first oil guide strip in the left and right direction is greater than or equal to the length of the air inlet in the left and right direction, in order to prevent oil stains flowing down from above the first oil guide strip from entering the air inlet. The steering air duct includes an upper cover plate that connects the inlet and the outlet respectively. The upper cover plate is located above the inlet. The inner wall of the upper cover plate is sloping. The front edge of the upper cover plate is connected to the front plate, and the front edge of the upper cover plate is lower than the rear edge of the upper cover plate. The oil dripping position of the upper cover plate is projected downward onto the front plate and is located above the first oil guide strip.

[0006] Furthermore, the inclined plane can be a plane or a curved surface.

[0007] Furthermore, the steering air duct also includes two side plates located on the left and right sides of the upper cover. The lower edge of the side plates is inclined, with the lower edge of the side plates being higher in the front and lower in the back. The oil dripping position of the lower edge is projected downward onto the front plate and located below the air inlet.

[0008] Furthermore, the side of the first oil guide bar facing away from the air inlet protrudes towards the side facing away from the air inlet.

[0009] Furthermore, second oil guides extending downwards are provided at both ends of the first oil guide.

[0010] Furthermore, the steering duct also includes a vertically arranged rear plate, with the outlet located on the rear plate; The smoke hood also includes a back panel that is arranged vertically, with the lower end of the back panel connected to the upper end of the back panel, and the back panel located in front of the back panel.

[0011] Furthermore, the smoke hood also includes a back panel arranged vertically, with a first folded edge folded forward along the lower edge of the back panel, and an oil drain hole on the first folded edge; the oil cup is located below the oil drain hole. The front edge of the first fold is connected to the lower edge of the front panel so that oil stains on the front panel can flow onto the first fold.

[0012] Furthermore, the upper edge of the front panel has a second folded edge, and the front edge of the upper cover has a third folded edge, with the second folded edge and the third folded edge connected.

[0013] Furthermore, both the second and third folds are vertically arranged; the smoke collection structure also includes a guide plate, which is located between the second and third folds and tilts backward from top to bottom; the oil sludge falling from the second fold flows to the guide plate.

[0014] Secondly, the present invention provides an oil fume treatment device, which includes the above-mentioned smoke collection structure.

[0015] This utility model has at least the following advantages or beneficial effects: The smoke collection structure provided by this utility model includes: a smoke collection hood and a deflecting air duct; the smoke collection hood includes a front plate and a top plate; the top plate is provided with an assembly port; the deflecting air duct includes an inlet and an outlet arranged at an angle, and a deflecting flow channel connecting the inlet and the outlet, the inlet being connected to the assembly port, and the outlet being used for smoke exhaust; the front plate is inclined relative to the horizontal plane, and an air inlet is provided on the front plate; a first oil guide strip is provided on the inner side wall of the front plate, the first oil guide strip is located above the air inlet, and the length of the first oil guide strip in the left-right direction is greater than or equal to the length of the air inlet in the left-right direction, in order to prevent oil stains flowing down from above the first oil guide strip from entering the air inlet; the deflecting air duct includes an upper cover plate that connects the inlet and the outlet respectively, the upper cover plate is located above the inlet, the inner wall of the upper cover plate is inclined, the front edge of the upper cover plate is connected to the front plate, and the front edge of the upper cover plate is lower than the rear edge of the upper cover plate; the oil stain dripping position of the upper cover plate is projected downward onto the front plate and is located above the first oil guide strip.

[0016] When the fume treatment device is working, the fumes are drawn into the fume collection hood through the air inlet, then flow upwards through the inlet of the turning duct and into the turning duct, and finally discharged from the outlet of the turning duct. During the movement of the fumes from the inlet to the outlet, they come into contact with the upper cover plate of the turning duct, and some oil adheres to the inner wall of the upper cover plate. The inner wall of the upper cover plate is designed to be inclined, allowing the oil to flow towards the bottom, i.e., towards the front edge of the upper cover plate, and finally fall onto the front plate. The inclined front plate guides the oil downwards. Furthermore, because a first oil guide strip is installed above the air inlet, it prevents the oil from falling downwards; the oil can only flow to the left and right sides of the first oil guide strip and pass by the left and right sides of the air inlet, without passing through the air inlet itself, thus preventing the oil flowing down from the turning duct from dripping from the air inlet.

[0017] The fume treatment device provided by this utility model includes the aforementioned fume collection structure. Because the fume treatment device provided by this utility model utilizes the aforementioned fume collection structure, it also possesses the advantages of the fume collection structure. Attached Figure Description

[0018] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0019] Figure 1 A schematic diagram of an oil passage in the smoke collection structure provided in Embodiment 1 of this utility model; Figure 2 for Figure 1 A magnified view of a portion of position A in the middle; Figure 3 for Figure 1 A magnified view of a portion of position B in the middle; Figure 4 A schematic diagram of another oil path in the smoke collection structure provided in Embodiment 1 of this utility model; Figure 5 This is a schematic diagram of the smoke collection structure provided in Embodiment 2 of this utility model; Figure 6 for Figure 5 A magnified view of the area at position C in the middle; Figure 7 This is a front view of the smoke collection structure provided in Embodiment 2 of this utility model; Figure 8 for Figure 7 A cross-sectional view along the DD direction; Figure 9 for Figure 8A magnified view of the area at position E in the middle.

[0020] Icon: 310 - Check valve; 321-Front panel; 3211-Air inlet; 322-Top panel; 323-Back panel; 3231-First folded edge; 32311-Oil drain hole; 3232-Flanged edge; 3233-Notch; 324-Head cover; 3241-Second folded edge; 311-Top cover; 3111-Third fold; 3112-Fourth fold; 312-Side panel; 313-Rear panel; 340-oil cup; 351 - First oil guide bar; 352 - Second oil guide bar; 360 - Air deflector; 370 - Screw; 380 - Button mechanism. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0022] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0023] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0024] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this utility model is in use. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first," "second," and "third," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0025] Furthermore, terms such as "horizontal" and "vertical" do not imply that components must be absolutely horizontal or suspended, but rather that they can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal than "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0026] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0027] Example 1 like Figures 1-4 As shown, the smoke collection structure provided by this utility model can be applied to split-type fume treatment devices, that is, the smoke collection structure is the indoor part, and its outlet is connected to a check valve 310 and then connected to the outdoor fan assembly through a smoke pipe. Since the smoke collection structure does not contain a fan assembly, the smoke collection structure in this embodiment is smaller in volume compared to the smoke collection structure of traditional fume treatment devices. It can also be applied to traditional integrated range hoods, that is, the smoke collection structure contains a fan.

[0028] The smoke collection structure includes: a smoke hood, a steering duct, and an oil cup 340.

[0029] The smoke hood includes a front panel 321, a top panel 322, and a back panel 323. The front panel 321 is inclined relative to the horizontal plane, with the front higher than the back, and the air inlet 3211 is located on the front panel 321.

[0030] like Figure 1 As shown, a head cover 324 is formed at the upper edge of the front panel 321, and components such as lights and button mechanisms 380 are installed inside the head cover 324. The front edge of the top panel 322 is connected to the head cover 324, the rear edge of the top panel 322 is connected to the upper edge of the back panel 323, and the lower edge of the back panel 323 is connected to the lower edge of the front panel 321.

[0031] like Figure 3As shown, specifically, the lower edge of the back panel 323 has a first folded edge 3231 that folds forward. The first folded edge 3231 is provided with an oil drain hole 32311. An oil cup 340 is connected to the lower part of the first folded edge 3231. Specifically, the oil cup 340 can be connected to the first folded edge 3231, and the oil leaking from the oil drain hole 32311 can enter the oil cup 340. The oil cup 340 can be connected to the bottom of the smoke hood and is exposed outside the smoke hood; or the oil cup 340 can be hidden inside the smoke hood.

[0032] An assembly port is provided on the top plate 322. Specifically, in this embodiment, there are two top plates 322, which are spaced apart to the left and right, forming the assembly port in the spaced area. The lower opening of the steering air duct is connected to the assembly port. The rear end of the steering air duct is connected to the check valve 310.

[0033] like Figure 1 As shown, a first oil guide strip 351 is provided on the inner sidewall of the front panel 321, extending in the left-right direction. On the plane of the front panel 321, the first oil guide strip 351 is located above the air inlet 3211. The length of the first oil guide strip 351 in the left-right direction is greater than or equal to the length of the air inlet 3211 in the left-right direction, serving to block the downward flow of oil. Oil flowing down from above the first oil guide strip 351 will be blocked by the first oil guide strip 351, preventing it from entering the air inlet 3211.

[0034] Furthermore, to improve oil drainage efficiency and prevent oil from crossing the first oil guide strip 351 and entering the air inlet 3211, the side of the first oil guide strip 351 facing away from the air inlet 3211 has a protruding structure. The protruding structure protrudes towards the side away from the air inlet 3211, and is higher in the middle and lower on both sides. The first oil guide strip 351 is roughly inverted "V" or "arch" shaped, with a higher middle and lower sides, which can play a role in guiding oil. Oil falling on the protruding structure from above is guided to flow to its left and right sides.

[0035] Furthermore, the first oil guide strip 351 is provided with a second oil guide strip 352 extending downward at both ends. The oil flowing to both ends of the first oil guide strip 351 flows downward along the second oil guide strip 352. The lowest point of the second oil guide strip 352 is lower than the position of the air inlet 3211. The oil flowing down along the second oil guide strip 352 will flow into the oil cup 340.

[0036] like Figure 1As shown, the inner wall of the upper cover plate 311 of the steering duct is inclined. The front edge of the upper cover plate 311 is connected to the front plate 321, and the front edge of the upper cover plate 311 is lower than the rear edge of the upper cover plate 311. The inclined surface can be flat or curved. In this embodiment, the upper cover plate 311 is set to a curved structure, which can guide the flue gas from bottom to top to flow to the rear, improving the smoke guiding effect. The oil stains adhering to the upper cover plate 311 will flow forward along the inclined surface, and when they flow to the lowest position of the inclined surface, the oil stains will drip. The downward projection of the oil stain dripping position of the upper cover plate 311 is located on the front plate 321 and above the first oil guide strip 351, that is, it can be blocked by the first oil guide strip 351.

[0037] When the fume treatment device is working, the fumes are drawn into the fume collection hood through the air inlet 3211, then flow upwards into the deflecting duct, and finally discharged from the room to the outside. As the fumes move through the deflecting duct, they come into contact with its upper cover 311, and some oil adheres to the inner wall of the upper cover 311. The inclined inner wall of the upper cover 311 allows the oil to flow upwards towards the bottom of the upper cover 311 under gravity, i.e., towards the front edge of the upper cover 311, and finally land on the front plate 321. The inclined front plate 321 guides the oil downwards. Furthermore, because a first oil guide strip 351 is installed above the air inlet 3211, it prevents the oil from falling downwards. The oil can only flow to the left and right sides of the first oil guide strip 351 and pass through the left and right sides of the air inlet 3211, without passing through the air inlet 3211 itself, thus preventing the oil flowing down from the deflecting duct from dripping from the air inlet 3211.

[0038] like Figure 1 As shown, the steering air duct also includes two side plates 312 and a rear plate 313 located on the left and right sides of the upper cover plate 311. The upper cover plate 311, the two side plates 312 and the rear plate 313 form a cavity structure with an open lower end. The rear plate 313 is provided with an outlet for connecting to the check valve 310.

[0039] like Figure 4 As shown, the lower edge of the side panel 312 is inclined, with the front end of the lower edge of the side panel 312 being higher and the rear end being lower. Oil stains adhering to the lower edge of the side panel 312 will flow backward under the influence of gravity, finally flowing down from the lowest position (the rear end of the lower edge). The downward projection of the oil stain dripping position on the lower edge is located on the front panel 321, and below the air inlet 3211. The oil stains flowing down from the side panel 312 collect at its lower edge. Because the lower edge of the side panel 312 is higher at the front and lower at the rear, the oil stains will flow backward and fall onto the front panel 321 at the lowest position, then flow from the front panel 321 to the oil cup 340. In this embodiment, the downward projection of the oil stain dripping position on the lower edge is located on the first folded edge 3231.

[0040] like Figure 1 and Figure 3As shown, to increase the structural stability of the back plate 323, an upwardly folded flange 3232 is provided at the front edge of the first folded edge 3231. The flange 3232 is connected to the lower edge of the front plate 321. Furthermore, to facilitate normal oil drainage, a notch 3233 is provided on the flange 3232. Oil on the front plate 321 flows through the notch 3233 onto the first folded edge 3231, and then flows from the oil drain hole 32311 into the oil cup 340. The number and position of the notches 3233 can correspond to the number and position of the oil drain holes 32311, so that the oil flowing out from the notches 3233 can quickly enter the oil drain holes 32311 and finally fall into the oil cup.

[0041] like Figure 2 As shown, the upper edge of the front plate 321 has a second folded edge 3241, and the front edge of the upper cover plate 311 has a third folded edge 3111. The second folded edge 3241 and the third folded edge 3111 are connected. In this embodiment, the second folded edge 3241 is arranged in a horizontal direction and is connected to the upper edge of the head cover 324. The second folded edge 3241 has a first through hole. Correspondingly, the third folded edge 3111 is also arranged in a horizontal direction and has a second through hole corresponding to the first through hole. The first through hole and the second through hole are aligned vertically. Locking components, such as screws and nuts, can be used to lock the second folded edge 3241 and the third folded edge 3111 after passing through the first through hole and the second through hole. Of course, other methods can also be used to connect the second folded edge 3241 and the third folded edge 3111, such as snap-fitting or welding.

[0042] Furthermore, a fourth fold 3112 that folds downward vertically can be provided at the rear edge of the third fold 3111. The lowest point of the fourth fold 3112 is the oil dripping point of the upper cover plate 311. The oil dripping from the upper cover plate falls on the third fold 3111 and then flows to the fourth fold 3112.

[0043] like Figure 4 As shown, the lower end of the back plate 313 is connected to the upper end of the back plate 323. The back of the back plate 313 can be welded to the inner wall of the back plate 323 or connected by screws. The back plate 313 is located on the front side of the back plate 323. The oil stains flowing down from the inner wall of the back plate 313 will flow to the inner wall of the back plate 323 under the action of gravity, and finally flow into the oil cup.

[0044] Example 2 like Figures 5-9 As shown, the difference from Embodiment 1 is that the upper edge of the front plate 321 has a second folded edge 3241, and the front edge of the upper cover plate 311 has a third folded edge 3111. Both the second folded edge 3241 and the third folded edge 3111 are arranged vertically. Figure 9As shown, the smoke collection structure also includes a guide plate 360, which is disposed between the second folded edge 3241 and the third folded edge 3111. Specifically, the guide plate 360 ​​is clamped between the second folded edge 3241 and the third folded edge 3111. All three are provided with through holes, and the second folded edge 3241, the guide plate 360, and the third folded edge 3111 can be connected by connectors. For example, a screw 370 can be used to pass through the three in sequence and then connected with a nut to lock them together. From top to bottom, the guide plate 360 ​​tilts backward, and the oil sludge falling from the third folded edge 3111 flows to the guide plate 360, and then the oil sludge flows along the tilted guide plate 360 ​​to the front plate 321. During cooking, the fumes inside the fume hood flow upwards, then rotate 90° and exit from the outlet. The oil stains adhering to the upper cover plate 311 flow forward along the slope under the action of gravity and flow onto the third fold edge 3111. Then, they flow downwards along the third fold edge 3111 onto the guide plate 360. The oil stains continue to flow backwards and downwards along the inclined guide plate 360 ​​until they reach the front plate 321. The oil stains flow smoothly across all surfaces without accumulating.

[0045] Furthermore, a deflector plate 360 ​​can be installed to close the rear opening of the head cover 324 at the front end of the front plate 321, thereby isolating the front plate 321 from the light or button assembly 380 inside the head cover 324 and improving the service life of the internal components of the head cover 324.

[0046] The fume treatment device provided by this utility model includes the aforementioned fume collection structure. Because the fume treatment device provided by this utility model utilizes the aforementioned fume collection structure, it also possesses the advantages of the fume collection structure.

[0047] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. A smoke collection structure, characterized in that, include: A smoke hood and a steering duct; the smoke hood includes a front plate (321) and a top plate (322); the top plate (322) is provided with an assembly port; The directional air duct includes an inlet and an outlet facing at an angle, and a directional flow channel connecting the inlet and the outlet. The inlet is connected to an assembly port, and the outlet is used for smoke exhaust. The front plate (321) is inclined relative to the horizontal plane, and an air inlet (3211) is provided on the front plate (321); a first oil guide strip (351) is provided on the inner side wall of the front plate (321), the first oil guide strip (351) is located above the air inlet (3211), and the length of the first oil guide strip (351) in the left-right direction is greater than or equal to the length of the air inlet (3211) in the left-right direction, so as to prevent oil stains flowing down from the top of the first oil guide strip (351) from entering the air inlet (3211); The steering duct includes an upper cover plate (311) that connects the inlet and the outlet respectively. The upper cover plate (311) is located above the inlet. The inner wall of the upper cover plate (311) is inclined. The front edge of the upper cover plate (311) is connected to the front plate (321), and the front edge of the upper cover plate (311) is lower than the rear edge of the upper cover plate (311). The oil dripping position of the upper cover plate (311) is projected downward onto the front plate (321) and is located above the first oil guide strip (351).

2. The smoke collection structure according to claim 1, characterized in that, The inclined plane can be a plane or a curved surface.

3. The smoke collection structure according to claim 1, characterized in that, The steering air duct also includes two side plates (312) located on the left and right sides of the upper cover plate (311). The lower edge of the side plate (312) is inclined. The lower edge of the side plate (312) is higher in the front and lower in the back. The oil dripping position of the lower edge is projected downward onto the front plate (321) and located below the air inlet (3211).

4. The smoke collection structure according to claim 1, characterized in that, The side of the first oil guide strip (351) facing away from the air inlet (3211) protrudes towards the side facing away from the air inlet (3211).

5. The smoke collection structure according to claim 4, characterized in that, The first oil guide strip (351) is also provided with a second oil guide strip (352) extending downward at both ends.

6. The smoke collection structure according to any one of claims 1-5, characterized in that, The steering duct also includes a vertically arranged rear plate (313), and the outlet is disposed on the rear plate; The smoke hood also includes a back plate (323) arranged vertically, the lower end of the rear plate (313) is connected to the upper end of the back plate (323), and the rear plate (313) is located on the front side of the back plate (323).

7. The smoke collection structure according to any one of claims 1-5, characterized in that, The smoke collection hood also includes a back plate (323) arranged vertically, and the lower edge of the back plate (323) is provided with a first folded edge (3231) that is folded forward, and an oil leakage hole (3232) is provided on the first folded edge (3231); the oil cup (340) is located below the oil leakage hole (3232); The front edge of the first fold (3231) is connected to the lower edge of the front plate (321) so that oil stains on the front plate (321) can flow onto the first fold (3231).

8. The smoke collection structure according to any one of claims 1-5, characterized in that, The upper edge of the front plate (321) has a second folded edge (3241), and the front edge of the upper cover plate (311) has a third folded edge (3111), with the second folded edge (3241) and the third folded edge (3111) connected.

9. The smoke collection structure according to claim 8, characterized in that, The second fold (3241) and the third fold (3111) are both arranged vertically; the smoke collection structure also includes a guide plate (360), which is arranged between the second fold (3241) and the third fold (3111). From top to bottom, the guide plate (360) is inclined backward; the oil stains falling from the second fold (3241) flow to the guide plate (360).

10. An oil fume treatment device, characterized in that, Includes the smoke collection structure as described in any one of claims 1-9.

Images