Exhaust fume collecting hood of extractor hood and extractor hood applying exhaust fume collecting hood

Abstract

The utility model relates to an exhaust fume collecting hood of an extractor hood and the extractor hood applying the exhaust fume collecting hood, the exhaust fume collecting hood of the extractor hood comprises a shell internally provided with an exhaust fume collecting cavity, the top of the exhaust fume collecting cavity is provided with a top plate, and the top plate is provided with an exhaust fume outlet; the range hood is characterized in that the top plate comprises a left top plate body, a central top plate body and a right top plate body which are sequentially arranged in the left-right direction, at least one of the left top plate body, the central top plate body and the right top plate body can be detachably connected with the shell, and the left top plate body, the central top plate body and the right top plate body jointly define a space where the smoke outlet is located. The exhaust fume collecting hood has the advantages that the internal maintenance of the range hood can be realized only by dismounting at least one of the left top plate, the central top plate and the right top plate, the whole range hood does not need to be dismounted, and the maintenance workload is reduced; in addition, the exhaust fume collecting hood does not need a maintenance window, so that the strength of the exhaust fume collecting hood can be ensured.

Description

Technical Field

[0001] This utility model relates to the field of oil fume purification technology, and in particular to a smoke collection hood for a range hood and a range hood using the smoke collection hood. Background Technology

[0002] Range hoods have become an indispensable kitchen appliance in modern homes. They operate on the principles of fluid dynamics, using a centrifugal fan installed inside to draw in and exhaust cooking fumes. The centrifugal fan consists of a casing, an impeller housed within the casing, and a motor that drives the impeller. As the impeller rotates, a negative pressure is generated at the center of the fan, drawing in the cooking fumes from below. After being accelerated by the fan, the fumes are collected by the casing and guided outwards.

[0003] Existing range hoods all include a smoke collection hood. Since these hoods are typically one-piece sheet metal parts, they are inconvenient for maintenance. To address this issue, Chinese utility model patent ZL202223169862.6 (authorization announcement number CN219177783U) discloses a smoke collection hood and range hood. This hood includes a main body, a flap assembly, and a maintenance cover. The main body forms a smoke collection chamber with a side opening and also includes a maintenance window. The flap assembly includes a flap body and a drive unit connected to it. The flap body closes the side opening, and the drive unit is connected to the main body, serving as a power source for opening or closing the side opening. The maintenance cover closes the maintenance window and is positioned corresponding to the drive unit, allowing for maintenance of the drive unit after removal of the cover.

[0004] Although the existing fume hood solves the problem of inconvenient repairs after drive component failure by providing a maintenance window on one side of the connection between the hood body and the drive component, allowing for easy access to the drive component for repairs by simply removing the maintenance cover from the window, it has the following limitations: Firstly, because the maintenance window is located on the rear side of the hood, the entire range hood must be disassembled for repairs, increasing the workload. Secondly, existing fume hoods are typically sheet metal parts; creating a maintenance window on a sheet metal part would reduce the hood's strength and affect the installation of the range hood. Therefore, further improvements to the existing technology are needed. Utility Model Content

[0005] The first technical problem to be solved by this utility model is to provide a range hood that allows for maintenance of the range hood without disassembling the entire unit, while ensuring the strength of the smoke collection hood, in light of the above-mentioned prior art.

[0006] The second technical problem to be solved by this utility model is to provide a range hood that uses the above-mentioned smoke collection hood.

[0007] The technical solution adopted by this utility model to solve the first technical problem mentioned above is as follows: a smoke collection hood for a range hood, comprising a shell with a smoke collection chamber inside, a top plate at the top of the smoke collection chamber, and a smoke outlet on the top plate; characterized in that: the top plate comprises a left top plate, a central top plate and a right top plate arranged sequentially in the left-right direction, at least one of the left top plate, the central top plate and the right top plate can be detachably connected to the shell, and the left top plate, the central top plate and the right top plate together enclose the space where the smoke outlet is located.

[0008] To facilitate smoke exhaust, the smoke outlet is located in the center of the top plate and is positioned near the front or rear side of the top plate.

[0009] To facilitate the maintenance of the range hood, the left top plate, central top plate, and right top plate can all be detachably connected to the housing.

[0010] In order to facilitate the assembly and disassembly of the left top plate, the central top plate and the right top plate, at least one side wall of the left top plate, the central top plate and the right top plate are provided with pins, and the housing is provided with slots for the corresponding pins to be inserted.

[0011] Furthermore, at least a portion of both the left and right top plates are fixedly connected to the housing by a first fastener. This first fastener can be a conventional fastener such as a bolt or screw.

[0012] Furthermore, the sidewall of the central top plate facing the smoke outlet is fixedly connected to the housing by a second fastener. The second fastener can be a conventional fastener such as a bolt or screw.

[0013] To ensure there is no height difference between the left top plate and the central top plate, the right side wall of the left top plate is provided with a first bent edge, which is inverted L-shaped. The left side of the central top plate rests on the horizontal part of the first bent edge.

[0014] To ensure there is no height difference between the right top plate and the central top plate, the left side wall of the right top plate is provided with a second bent edge, which is inverted L-shaped. The right side of the central top plate rests on the transverse part of the second bent edge.

[0015] To make the top panels more aesthetically pleasing, the top surfaces of the left, central, and right top panels are basically on the same plane.

[0016] The technical solution adopted by this utility model to solve the second technical problem mentioned above is: a range hood, characterized in that: it uses a smoke collection hood as described above.

[0017] Compared with the prior art, the advantages of this utility model are as follows: by dividing the top plate into a left top plate, a central top plate and a right top plate arranged sequentially in the left-right direction, and at least one of the left top plate, the central top plate and the right top plate can be detachably connected to the shell, so only at least one of the left top plate, the central top plate and the right top plate needs to be removed to realize the internal maintenance of the range hood, without disassembling the entire range hood, thus reducing the workload of maintenance; in addition, the smoke collection hood does not need to open a maintenance window, thereby ensuring the strength of the smoke collection hood. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of the range hood in the embodiment of this utility model;

[0019] Figure 2 This is a schematic diagram of the structure of the smoke collection hood in an embodiment of this utility model;

[0020] Figure 3 for Figure 2 Exploded view;

[0021] Figure 4 for Figure 2 A sectional view. Detailed Implementation

[0022] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments.

[0023] like Figure 1 As shown, the range hood in this embodiment includes a smoke collection hood, a fan frame b disposed above the smoke collection hood, and a fan system (not shown) disposed within the fan frame b.

[0024] like Figures 2-4 As shown, the smoke collection hood in this embodiment includes a shell 1 with an internal smoke collection chamber 10, a top plate 100 on the top of the smoke collection chamber 10, and a smoke outlet a on the top plate 100; as Figure 2 As shown, the top plate 100 includes a left top plate 11a, a central top plate 11b, and a right top plate 11c arranged sequentially in a left-right direction. At least one of the left top plate 11a, central top plate 11b, and right top plate 11c can be detachably connected to the housing 1. The left top plate 11a, central top plate 11b, and right top plate 11c together enclose the space where the smoke outlet a is located. The smoke outlet a is located in the center of the top plate 100 and is disposed near the front or rear side of the top plate 100. The fan frame b communicates with the smoke outlet a to realize smoke exhaust. Figure 2 and Figure 3 As shown, in this embodiment, the smoke outlet a is located near the rear side of the top plate 100.

[0025] To facilitate the disassembly and maintenance of the range hood, the left top plate 11a, central top plate 11b, and right top plate 11c can all be detachably connected to the housing 1. At least one side wall of the left top plate 11a, central top plate 11b, and right top plate 11c is provided with a pin 12, and the housing 1 is provided with a slot (not shown in the figure) for the corresponding pin 12 to be inserted. Figure 3 As shown, in this embodiment, the central top plate 11b is located in front of the smoke outlet a, and the front sidewalls of the left top plate 11a, the central top plate 11b, and the right top plate 11c are all provided with pins 12. Figure 3 (There are two pins 12 in the middle), so the left top plate 11a, the central top plate 11b and the right top plate 11c can be installed by plugging them in.

[0026] Furthermore, at least a portion of the left top plate 11a and the right top plate 11c are fixedly connected to the housing 1 by a first fastener; the side wall of the central top plate 11b facing the smoke outlet a is fixedly connected to the housing 1 by a second fastener 3. Figure 3 As shown, in this embodiment, both the left top plate 11a and the right top plate 11c have a first threaded hole c near their rear side. The left top plate 11a and the right top plate 11c are fixedly connected to the housing 1 by assembling a first fastener (which can be a screw or bolt) into the first threaded hole c, while also facilitating the disassembly of the left top plate 11a and the right top plate 11c. Figure 2 As shown, a second threaded hole d is provided on the rear side of the central top plate 11b. Similarly, the central top plate 11b is fixedly connected to the housing 1 by assembling a second fastener (which can be a screw or bolt) into the second threaded hole d, which also facilitates the disassembly of the central top plate 11b.

[0027] The right side wall of the left top plate 11a is provided with a first bent edge 4, which is inverted L-shaped. The left side of the central top plate 11b rests on the transverse portion of this first bent edge 4. Similarly, the left side wall of the right top plate 11c is provided with a second bent edge 5, which is inverted L-shaped. The right side of the central top plate 11b rests on the transverse portion of this second bent edge 5. Figure 4 As shown. The first bent edge 4 includes a first horizontal portion 41 and a first vertical portion 42, and the second bent edge 5 includes a second horizontal portion 51 and a second vertical portion 52. The bottoms of the first vertical portion 42 and the second vertical portion 52 are placed on the inner wall of the smoke collection chamber 10. By placing the two sides of the central top plate 11b on the first horizontal portion 41 and the second horizontal portion 51 respectively, the top surfaces of the left top plate 11a, the central top plate 11b and the right top plate 11c are basically on the same plane.

[0028] In the specification and claims of this utility model, terms indicating direction, such as "front," "rear," "upper," "lower," "left," "right," "side," "top," and "bottom," are used to describe various exemplary structural parts and elements of this utility model. However, the use of these terms is merely for the purpose of explanation and is based on the exemplary orientations shown in the accompanying drawings. Since the embodiments disclosed in this utility model can be arranged in different orientations, these terms indicating direction are for illustrative purposes only and should not be regarded as limitations. For example, "upper" and "lower" are not necessarily limited to directions opposite to or consistent with the direction of gravity.

Claims

1. A range hood comprising a housing (1) having a smoke collecting cavity (10) inside, a top of the smoke collecting cavity (10) having a top plate (100), the top plate (100) having a smoke outlet (a) formed therein; characterized in that: The top plate (100) comprises a left top plate (11a), a central top plate (11b) and a right top plate (11c) arranged in sequence along the left-right direction, at least one of the left top plate (11a), the central top plate (11b) and the right top plate (11c) being detachably connected with the shell (1), and the left top plate (11a), the central top plate (11b) and the right top plate (11c) collectively enclosing a space where the smoke outlet (a) is located.

2. The hood of claim 1, wherein: The smoke outlet (a) is arranged at the center of the top plate (100) and adjacent to the front side or the rear side of the top plate (100).

3. The hood of claim 1, wherein: The left top plate (11a), the central top plate (11b) and the right top plate (11c) are all detachably connected with the shell (1).

4. The hood of claim 1, wherein: At least one side wall of the left top plate (11a), the central top plate (11b) and the right top plate (11c) is provided with a plug (12), and the shell (1) is provided with a slot for plugging the corresponding plug (12).

5. The hood of claim 4, wherein: At least a part of the left top plate (11a) and the right top plate (11c) is fixedly connected with the shell (1) by a first fastener.

6. The hood of claim 1, wherein: The side wall of the central top plate (11b) facing the smoke outlet (a) is fixedly connected with the shell (1) by a second fastener.

7. The hood of claim 1, wherein: The right side wall of the left top plate (11a) is provided with a first bent edge (4), the first bent edge (4) is in an inverted L shape, and the left side of the central top plate (11b) is placed on the transverse part of the first bent edge (4).

8. The hood of claim 1, wherein: The left side wall of the right top plate (11c) is provided with a second bent edge (5), the second bent edge (5) is in an inverted L shape, and the right side of the central top plate (11b) is placed on the transverse part of the second bent edge (5).

9. The hood of claim 1, wherein: The top surfaces of the left top plate (11a), the central top plate (11b) and the right top plate (11c) are substantially in the same plane.

10. A range hood characterized by: The smoke hood has the smoke hood cover as claimed in any one of claims 1-9.

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