Exhaust fume collecting hood and range hood applying same

Abstract

The exhaust fume collecting hood comprises a hood body and a top plate, the hood body comprises a front side wall and a rear side wall which are arranged front and back in a spaced mode, and the top plate comprises a plate body arranged at the top of the hood body; the top plate further comprises clamping hooks formed on the left side and the right side of the top plate, a first turnup extending downwards from the front side of the plate body and a second turnup extending downwards from the rear side of the plate body. The cover body comprises a bayonet matched with the clamping hook in a front-back inserting mode, the first turned edge is fixed to the front side wall of the cover body, and the second turned edge is fixed to the rear side wall of the cover body.

Description

Technical Field

[0001] The utility model relates to an oil fume purification device, in particular to a fume collecting hood and a range hood equipped with the fume collecting hood. Background Art

[0002] Range hoods have become an indispensable kitchen appliance in modern homes. They operate using the principles of fluid dynamics, using a centrifugal fan installed inside the hood to draw in and exhaust fumes while using a filter to remove grease particles.

[0003] Usually, range hoods include top-suction type and side-suction type, and top-suction range hoods are more and more widely used due to their advantages such as being neat, lightweight and taking up little space. A top-suction range hood usually includes a smoke hood and a fan frame located on the smoke hood, in which a volute, an impeller and a motor for driving the impeller are installed. Existing top-suction range hoods, such as a range hood with enhanced structural strength of the smoke hood disclosed in Chinese patent application number 202221461819.4, include a smoke hood and an outer shell, the outer shell is arranged on the top of the smoke hood, and a fan assembly is arranged therein; a smoke inlet docking with the outer shell is provided on the top plate of the smoke hood, the top plate is provided with a first flange at the smoke inlet, and the outer shell is fixed to the first flange.

[0004] The conventional top panel installation method involves inserting the front of the top panel into the fume hood and securing it with screws from the back. This typically leaves a U-shaped gap on three sides of the top panel, which detracts from the overall aesthetics of the product. Furthermore, since the top panel is secured to the back of the fume hood with screws, removing internal electrical components like lights and gesture switches requires the entire unit to be removed and installed, significantly hindering repair work for service technicians.

[0005] Traditional fume hoods operate at a high height, so the gaps on the top are generally difficult to see, minimizing the overall aesthetic impact. Furthermore, the hoods themselves are thick and strong enough to withstand transport and drop scenarios. However, when a lift-type range hood is in operation, the hood lowers, exposing the top surface to the user's view, thus affecting the product's aesthetics. Furthermore, in pursuit of refined aesthetics, thin fume hoods are used. However, due to their inherent thickness and low strength, traditional structures cannot withstand transport and drop scenarios.

[0006] Therefore, there is room for further improvement. Utility Model Content

[0007] The first technical problem to be solved by the present invention is to provide a smoke hood that is easy to repair and disassemble, and at the same time ensures that the strength of the smoke hood meets the requirements of scenarios such as transportation and falling, in response to the deficiencies in the above-mentioned prior art.

[0008] The second technical problem to be solved by the present invention is to provide a range hood using the above-mentioned fume hood.

[0009] The utility model solves the first technical problem mentioned above by adopting a technical solution: a smoke collecting hood, comprising a hood body and a top plate, wherein the hood body comprises a front side wall and a rear side wall spaced apart from each other, and the top plate comprises a plate body arranged on the top of the hood body; the characteristics are:

[0010] The top plate further comprises hooks formed on the left and right sides of the top plate, a first flange extending downward from the front side of the plate body, and a second flange extending downward from the rear side of the plate body;

[0011] The cover body includes a bayonet socket that is plugged into and matched with the hook in a front-to-back manner. The first flange is fixed to the front side wall of the cover body, and the second flange is fixed to the rear side wall of the cover body.

[0012] The top plate is matched with the hood body by being plugged in from front to back, and the front and back sides of the top plate are respectively fixed to the hood body, thereby facilitating the disassembly and assembly of the top plate, so as to facilitate the maintenance of the devices inside the smoke hood. Moreover, the fixation of the front and back sides can ensure stability during assembly and transportation, reduce deformation of parts, and make the strength of the smoke hood meet the requirements of scenarios such as transportation and falling.

[0013] Preferably, in order to facilitate the front-to-back plug-in cooperation between the hook of the top plate and the cover body, each hook is L-shaped as a whole, and each hook includes a first hook portion extending downward from the plate body and a second hook portion extending backward from the bottom of the first hook portion, and the length of the hook in the front-to-back direction is greater than the length of the hook in the front-to-back direction.

[0014] Furthermore, to facilitate the setting of the bayonet, the cover body also includes a left side wall and a right side wall, the left side wall is arranged between the left end portions of the front side wall and the rear side wall, the right side wall is arranged between the right end portions of the front side wall and the rear side wall, a left mounting portion extending toward the right side wall is formed on the left side wall, and a right mounting portion extending toward the left side wall is formed on the right side wall, and the bayonet is opened on each mounting portion.

[0015] Furthermore, to facilitate the fixation of the front and rear sides of the top plate, the first flange of the top plate is fixed to the front side wall of the cover body by a first screw, and the second flange of the top plate is fixed to the rear side wall of the cover body by a second screw.

[0016] Furthermore, in order to reduce the installation gap on the front side of the top plate, the smoke hood also includes a panel fixed to the front side wall of the hood body, the panel includes a front plate and an upper plate bent backward from the top of the front plate, the first flange of the top plate is inserted between the front plate of the panel and the front side wall of the hood body, and the upper plate is higher than the front side wall of the hood body and the plate body of the top plate.

[0017] Furthermore, in order to reduce the installation gap on the rear side of the top plate, the second flange of the top plate includes a first bent edge bent downward from the rear side of the plate body and a second bent edge bent forward and downward from the bottom of the first bent edge, and the first bent edge is located on the rear side wall of the cover body.

[0018] The first technical solution adopted by the present invention to solve the above second technical problem is: a range hood, characterized in that: the smoke collecting hood as described above is applied.

[0019] Preferably, the range hood includes an upper box and a lower box, the lower box is at least partially located below the upper box, the lower box is wrapped around the outer periphery of the upper box and can be raised and lowered relative to the upper box, and the smoke hood is arranged at the bottom of the lower box.

[0020] The second technical solution adopted by the present invention to solve the second technical problem is: a range hood comprising an upper housing and a lower housing, wherein the lower housing is at least partially located below the upper housing, the lower housing covers the outer periphery of the upper housing, and can be raised and lowered relative to the upper housing; the feature being that a fume hood as described above is provided at the bottom of the lower housing, the second screw is a hexagonal screw, and in horizontal projection, the rearmost position of the upper housing or the lower housing is located behind the rear end of the second screw. This facilitates the operation of the second screw, thereby facilitating assembly and disassembly of the top panel without disassembling the entire range hood.

[0021] Compared with the prior art, the advantages of the present invention are: the top plate is matched with the hood body by front-to-rear plug-in connection, and the front and rear sides of the top plate are respectively fixed to the hood body, thereby facilitating the disassembly and assembly of the top plate, so as to facilitate the maintenance of the devices in the smoke hood, and the fixation of the front and rear sides can ensure stability during assembly and transportation, reduce deformation of parts, and make the strength of the smoke hood meet the requirements of scenarios such as transportation and falling; by blocking the installation gaps on the front and rear sides of the top plate, the installation gap between the top plate and the hood body is reduced, and even if it is applied to a lifting range hood, the installation gap will not be exposed, and the accumulation of oil stains in the gap can also be reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 A schematic diagram of a range hood according to an embodiment of the present invention;

[0023] Figure 2 This is a cross-sectional view (front-to-back cross-section) of a range hood according to an embodiment of the present invention;

[0024] Figure 3 for Figure 2 A schematic diagram of the partial I enlargement;

[0025] Figure 4 A schematic diagram of a fume hood of a range hood according to an embodiment of the present invention;

[0026] Figure 5 This is a schematic diagram of the exploded structure of the fume hood of the range hood according to an embodiment of the present invention;

[0027] Figure 6 for Figure 5 A schematic diagram of the partial II enlargement;

[0028] Figure 7 A cross-sectional view of a fume hood of a range hood according to an embodiment of the present invention;

[0029] Figure 8 for Figure 7 A partial enlarged schematic diagram of Ⅲ;

[0030] Figure 9 for Figure 7 A partial enlarged schematic diagram of Ⅳ;

[0031] Figure 10 for Figure 7 A partial enlarged schematic diagram of .

[0032] Figure 11 This is a schematic diagram of the top plate of the fume hood of the range hood according to an embodiment of the present invention. DETAILED DESCRIPTION

[0033] The embodiments of the present invention are described in detail below. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals represent the same or similar elements or elements with the same or similar functions.

[0034] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Since the embodiments disclosed in the present invention can be set in different directions, these terms indicating directions are only for illustration and should not be regarded as limitations. For example, "up" and "down" are not necessarily limited to directions opposite to or consistent with the direction of gravity. In addition, features defined as "first" and "second" may explicitly or implicitly include one or more of such features.

[0035] See also Figure 1 and Figure 2A range hood includes an upper housing 1, a lower housing 2, a fume hood 3 disposed at the bottom of the lower housing 2, and a fan system 4 disposed within the upper housing 1. The lower housing 2 is at least partially located below the upper housing 1. The lower housing 2 covers the outer periphery of the upper housing 1 and can be raised and lowered relative to the upper housing 1. A fume hood 3 is formed with a smoke inlet 34 to allow oil smoke to be drawn into the lower housing 2, upwardly into the upper housing 1, and then discharged through the fan system 4.

[0036] See also Figures 4 to 11 The smoke hood 3 includes a hood body 31, a top plate 32 and a panel 33, wherein the hood body 31 includes a front side wall 311, a rear side wall 312, a left side wall 313 and a right side wall 314. The front side wall 311 and the rear side wall 312 are arranged in a front-to-back manner. The left side wall 313 is arranged between the left end portions of the front side wall 311 and the rear side wall 312, and the right side wall 314 is arranged between the right end portions of the front side wall 311 and the rear side wall 312. The hood body 31 also includes a bottom plate 315, which is arranged between the bottoms of the above-mentioned side walls. The middle of the bottom plate 315 is folded upward to form a smoke collection chamber 35. The above-mentioned smoking port 34 is located at the top of the folded portion of the bottom plate 315. The smoking port 34 enables the smoke collection chamber 35 to communicate with the internal fluid of the lower box body 2. The above-mentioned top plate 32 is arranged between the tops of the side walls of the hood body 31, and the panel 33 is arranged on the front side of the front side wall 311 of the hood body 31. The above structure of the smoke collecting hood 3 is prior art.

[0037] The thickness of the smoke hood 3 is reduced from 70mm of the traditional top-suction range hood to about 30mm. If the smoke hood design of the original top-suction range hood is adopted, it will lead to the strength being difficult to meet the requirements of scenarios such as transportation and falling. Therefore, in this embodiment, the installation method of the top plate 32 and the hood body 31 is improved. The top plate 32 includes a plate body 321 and hooks 322 formed on the left and right sides of the plate body 321. The position of the plate body 321 corresponding to the smoke outlet 34 is hollowed out to facilitate the passage of oil smoke and to facilitate installation with the lower box body 2. A left mounting portion 316 extending toward the right side wall 314 is formed on the left side wall 313 of the hood body 31 of the smoke hood 3, and a right mounting portion 317 extending toward the left side wall 313 is formed on the right side wall 314. Each mounting portion is provided with a bayonet 318 that cooperates with the hook 322. Each hook 322 is L-shaped, comprising a first hook portion 3221 extending downward from the plate 321 and a second hook portion 3222 extending rearward from the bottom of the first hook portion 3221. The length of the notch 318 in the front-to-back direction is greater than the length of the hook 322 in the front-to-back direction. Therefore, the top plate 32 is installed by pushing it from the front to the back of the cover 31. The hook 322 slides rearward along the notch 318 until it abuts the rear edge of the notch 318, thereby locking the hook 322 and the cover 31 together.

[0038] The top plate 32 also includes a first flange 323 extending downward from the front of the plate body 321 and a second flange 324 extending downward from the rear of the plate body 321. The first flange 323 is secured to the front sidewall 311 of the housing 31 via a first screw 361, while the second flange 324 is secured to the rear sidewall 311 of the housing 31 via a second screw 362. As shown above, the plate body 321 is hollowed out to accommodate the housing 31 and the lower case 2. Therefore, the second flange 324 is divided into two parts, located on the left and right sides of the inhalation port 34. The first flange 323 extends from the left side to the right side of the housing 31. Therefore, the number of first screws 361 is greater than the number of second screws 362. Preferably, in this embodiment, there are seven first screws 361 evenly spaced from side to side, and four second screws 362, with two second flanges 324 on each side, evenly spaced from side to side. The second screws 362 can be hexagonal screws.

[0039] By installing the top plate 32 as described above, stability during assembly and transportation can be ensured and deformation of parts can be reduced.

[0040] To reduce installation gaps, the present invention features a seamless design where the second flange 324 includes a first bent edge 3241 bent downward from the rear side of the plate 321, and a second bent edge 3242 bent forward and downward from the bottom of the first bent edge 3241. The second bent edge 3242 is concave forward relative to the first bent edge 3241. The first bent edge 3241 is located above the rear sidewall 312 of the cover body 31, covering the rear sidewall 312 and reducing rear gaps.

[0041] Furthermore, the panel 33 is disposed in front of the front sidewall 311 of the housing 31. The panel 33 includes a front plate 331 and an upper plate 332 bent backward from the top of the front plate 331. The first flange 323 of the upper plate 32 is inserted between the front plate 331 of the panel 33 and the front sidewall 311 of the housing 31. The panel 33 can be secured to the front sidewall 311 of the housing 31 at the front plate 331. The height of the front plate 331 can be adapted to that of the front sidewall 311 of the housing 31, while the upper plate 332 is higher than both the front sidewall 311 of the housing 31 and the plate body 321 of the upper plate 32. Thus, the upper plate 332 blocks the gap between the front plate 331 and the first flange 323, thereby reducing the gap on the front side.

[0042] When the electrical components inside the smoke hood 3 need to be repaired, the panel 33 can be pried open and the first screw 361 fixing the top plate 32 can be unscrewed. Since the length of the bayonet 318 is greater than the length of the hook 322, the top plate 32 can be pulled out forward. Figure 2 and Figure 3Because the second screw 362 is positioned a distance L from the wall on which the range hood is mounted, that is, in horizontal projection, the rearmost position of the upper housing 1 or lower housing 2 is located behind the rear end of the second screw 362, with a spacing of at least L, preferably ≥ 15 mm. Furthermore, since the rear side of the top panel 32 is secured with a hexagonal screw, a wrench can be used to reach into the gap at the rear of the range hood and loosen the second screw 362. This releases the front and rear fastenings of the top panel 32, allowing it to be pulled forward for maintenance of the internal electrical components. After maintenance is complete, the top panel 32 can be pushed back to its limit, and the rear second screw 362 can be released, eliminating the need to lift the entire range hood for disassembly and assembly.

[0043] The "fluid communication" referred to in the present invention refers to the spatial positional relationship between two components or parts (hereinafter collectively referred to as the first part and the second part), that is, the fluid (gas, liquid or a mixture of the two) can flow from the first part along the flow path and / or be transported to the second part. The first part and the second part can be directly connected, or the first part and the second part can be indirectly connected through at least one third party. The third party can be a fluid channel such as a pipe, channel, conduit, guide member, hole, groove, etc., or it can be a chamber allowing fluid to flow through, or a combination of the above.

Claims

1. A smoke hood, comprising a hood body (31) and a top plate (32), wherein the hood body (31) comprises a front side wall (311) and a rear side wall (312) spaced apart from each other, and the top plate (32) comprises a plate body (321) disposed on the top of the hood body (31); characterized in that: The top plate (32) further includes hooks (322) formed on the left and right sides of the plate body (321), a first flange (323) extending downward from the front side of the plate body (321), and a second flange (324) extending downward from the rear side of the plate body (321); The cover body (31) includes a bayonet (318) that is plugged into and matched with the hook (322) in a front-to-back manner. The first flange (323) is fixed to the front side wall (311) of the cover body (31), and the second flange (324) is fixed to the rear side wall (312) of the cover body (31).

2. The smoke collecting hood according to claim 1, characterized in that: Each hook (322) is L-shaped as a whole, and each hook (322) includes a first hook portion (3221) extending downward from the plate body (321) and a second hook portion (3222) extending backward from the bottom of the first hook portion (3221). The length of the bayonet (318) in the front-to-back direction is greater than the length of the hook (322) in the front-to-back direction.

3. The smoke collecting hood according to claim 1 or 2, characterized in that: The cover body (31) further comprises a left side wall (313) and a right side wall (314), wherein the left side wall (313) is arranged between the left end portions of the front side wall (311) and the rear side wall (312), and the right side wall (314) is arranged between the right end portions of the front side wall (311) and the rear side wall (312), a left mounting portion (316) extending toward the right side wall (314) is formed on the left side wall (313), and a right mounting portion (317) extending toward the left side wall (313) is formed on the right side wall (314), and the bayonet (318) is provided on each mounting portion.

4. The smoke collecting hood according to claim 1, wherein: The first flange (323) of the top plate (32) is fixed to the front side wall (311) of the cover body (31) by a first screw (361), and the second flange (324) of the top plate (32) is fixed to the rear side wall (312) of the cover body (31) by a second screw (362).

5. The fume hood according to claim 1, wherein: The smoke hood also includes a panel (33) fixed to the front side wall (311) of the hood body (31), the panel (33) including a front plate (331) and an upper plate (332) bent backward from the top of the front plate (331), the first flange (323) of the top plate (32) being inserted between the front plate (331) of the panel (33) and the front side wall (311) of the hood body (31), and the upper plate (332) being higher than the front side wall (311) of the hood body (31) and the plate body (321) of the top plate (32).

6. The fume hood according to claim 1, wherein: The second flange (324) of the top plate (32) comprises a first bent edge (3241) bent downward from the rear side of the plate body (321) and a second bent edge (3242) bent forward and downward from the bottom of the first bent edge (3241), wherein the first bent edge (3241) is located on the rear side wall (312) of the cover body (31).

7. A range hood, characterized in that: The invention is applied to the smoke collecting hood according to any one of claims 1 to 6.

8. The range hood according to claim 7, characterized in that: The range hood comprises an upper box body (1) and a lower box body (2), wherein the lower box body (2) is at least partially located below the upper box body (1), the lower box body (2) covers the outer periphery of the upper box body (1) and can be raised and lowered relative to the upper box body (1), and the smoke collecting hood is arranged at the bottom of the lower box body (2).

9. A range hood, comprising an upper housing (1) and a lower housing (2), wherein the lower housing (2) is at least partially located below the upper housing (1), and the lower housing (2) covers the outer periphery of the upper housing (1) and can be raised and lowered relative to the upper housing (1); characterized in that: The bottom of the lower box body (2) is provided with a smoke hood as claimed in claim 4, and the second screw (362) is a hexagonal screw. In horizontal plane projection, the rearmost position of the upper box body (1) or the lower box body (2) is located behind the rear end of the second screw (362).

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