Secondary filtering type range hood

Abstract

The utility model provides a secondary filtering type range hood which comprises a range hood body, a first grease separator is arranged at the initial section of an air duct of the range hood body, a pull-out type second grease separator is arranged at the tail section of the air duct of the range hood body, the second grease separator is provided with at least two layers of structures, and the first grease separator and the second grease separator are arranged in parallel. And the second grease separator has a certain horizontal inclination angle after being mounted. According to the utility model, the design of double grease separators is adopted, after oil smoke passes through the first grease separator, larger oil molecules can be separated, and smaller oil molecules enter the second grease separator and are concentrated together under the pulling of aerodynamic force to form larger oil molecules, and the larger oil molecules are separated by the second grease separator under the action of gravity, so that the oil smoke can be separated by the second grease separator. Therefore, the secondary filtering effect is achieved. And compared with a re-filtering product in the market, a more efficient filtering effect can be realized, and the noise is lower.

Description

Technical Field

[0001] This utility model relates to the field of kitchen appliance technology, specifically to a secondary filtration type range hood. Background Technology

[0002] A range hood, also known as a kitchen exhaust hood, is a kitchen appliance used to purify the kitchen environment. Installed above the stove, it quickly removes waste from combustion and harmful fumes produced during cooking, expelling them outdoors. It also condenses and collects these fumes, reducing pollution, purifying the air, and providing safety features such as protection against toxic substances and explosions.

[0003] A range hood mainly consists of a casing, duct, fan, check valve, oil collection and drainage device, lighting, power switch, and power cord. Existing range hoods typically only have a single filter, and this filter is located at the beginning of the duct, resulting in insufficient oil fume filtration. Utility Model Content

[0004] To overcome the shortcomings of existing technologies, this utility model provides a secondary filtration range hood, which has a better and more thorough oil fume filtration effect.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0006] A secondary filtration range hood includes a range hood body, a first grease separator is provided in the initial section of the air duct of the range hood body, and a pull-out second grease separator is provided in the final section of the air duct of the range hood body. The second grease separator has at least two layers and has a certain horizontal tilt angle after installation.

[0007] Furthermore, the second grease separator has a two-layer structure, including a guide plate and a filter plate from bottom to top. The guide plate is provided with multiple guide holes, and the filter plate is provided with a grease separation groove opposite the guide holes. The filter plate next to the grease separation groove is provided with filter holes.

[0008] Furthermore, the bottom of the inclined surface of the guide plate after installation is provided with an oil collection groove, and the periphery of the guide hole is provided with an upward folded edge.

[0009] Furthermore, the guide plate has a locking hole on one side and an adsorption sheet on the other side; the filter plate has a locking block on one side that matches the locking hole, and a first magnet on the other side that is attracted to the adsorption sheet.

[0010] Furthermore, the second grease separator is magnetically fixed to the range hood body.

[0011] Furthermore, the range hood body is provided with a second magnet, and the back of the front side plate of the baffle plate is attracted to the second magnet.

[0012] Furthermore, a handle glass plate is connected to the front side of the guide plate.

[0013] Furthermore, the second grease separator is made of die-cast aluminum alloy. It does not require regular replacement, saving on operating costs.

[0014] Compared with the prior art, the present invention has the following beneficial technical effects:

[0015] This invention employs a dual grease separator design. After passing through the first grease separator, larger oil molecules are separated. Smaller oil molecules then converge in the second grease separator under the influence of airflow, forming larger oil molecules that are then separated by gravity, thus achieving a secondary filtration effect. Compared to single-stage filtration products on the market, this design achieves a more efficient filtration effect and produces less noise. Attached Figure Description

[0016] Figure 1 This is a structural diagram of a secondary filtration range hood according to this utility model.

[0017] Figure 2 This is a schematic diagram of the extraction of the second grease separator in a secondary filtration range hood according to this utility model.

[0018] Figure 3 This is a cross-sectional view of a secondary filtration range hood according to this utility model.

[0019] Figure 4 This is an exploded view of the second grease separator of this utility model.

[0020] Figure 5 This is a cross-sectional view of the second grease separator of this utility model.

[0021] The components include: 1. Range hood body; 2. First grease separator; 3. Second grease separator; 31. Guide plate; 311. Guide hole; 312. Upward folded edge; 313. Locking hole; 314. Adsorption sheet; 315. Screw; 32. Filter plate; 321. Grease separation tank; 322. Filter hole; 323. Locking block; 324. First magnet; 33. Handle glass plate; 34. Fixing bracket. Detailed Implementation

[0022] Many specific details are set forth in the following description to provide a full understanding of the present invention. However, the present invention can be implemented in many other ways different from those described herein, and those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0023] like Figure 1-5 As shown, a dual-filtration range hood includes a range hood body 1. A first grease separator 2 is installed at the beginning of the air duct of the range hood body 1, and a pull-out second grease separator 3 is installed at the end of the air duct. The dual grease separator design improves the grease filtration effect, and the pull-out design of the second grease separator 3 facilitates disassembly and cleaning.

[0024] The second grease separator 3 has at least two layers, which can be two, three, or four layers. Preferably, the second grease separator 3 has a two-layer structure, including a guide plate 31 and a filter plate 32 from bottom to top. The guide plate 31 is provided with a plurality of guide holes 311, and the filter plate 32 is provided with an grease separation groove 321 opposite to the guide holes 311. The filter plate 32 next to the grease separation groove 321 is provided with filter holes 322.

[0025] It should be noted that when the second grease separator 3 has a structure of three or more layers, the filter plate 32 is provided with at least two layers, and the filter holes 322 between two adjacent filter plates 32 are staggered so that the oil fumes can flow out upward in an S-shape to ensure the grease separation effect.

[0026] The second grease separator 3 has a certain horizontal inclination after installation. The bottom of the inclined surface of the guide plate 31 after installation is provided with an oil collection groove, and the periphery of the guide hole 311 is provided with an upward-curved edge 312. Based on the above structure, the oil fumes separated by the first grease separator 2 enter the second grease separator 3 through the guide hole 311, first impacting the grease separation groove 321. The grease gradually accumulates and drips along the grease separation groove 321 into the oil collection groove, while the fumes flow out from the filter hole 322, achieving a secondary filtration effect. The upward-curved edge 312 prevents grease from flowing back into the guide hole 311.

[0027] Preferably, the components of the second grease separator 3 (baffle plate 31 and filter plate 32) are made of die-cast aluminum alloy, which does not require regular replacement and saves users' operating costs.

[0028] The flow guide plate 31 has a locking hole 313 on one side and an adsorption plate 314 on the other side. The adsorption plate 314 is fixed to the flow guide plate 31 by screws 315. The filter plate 32 has a locking block 323 on one side that matches the locking hole 313, and a first magnet 324 on the other side that attracts the adsorption plate 314. The filter plate 32 is embedded in the top of the flow guide plate 31 and is secured by the locking block 323 and the locking hole 313, as well as by the first magnet 324 and the adsorption plate 314.

[0029] The second grease separator 3 is magnetically fixed to the range hood body 1. The range hood body 1 is equipped with a second magnet, and the back of the front side plate of the baffle 31 is attracted to the second magnet. The front side plate of the baffle 31 is connected to a handle glass plate 33, and the handle glass plate 33 is connected to the baffle 31 through a fixing bracket 34.

[0030] The first grease separator 2 can adopt existing technology or the same structure as the second grease separator 3.

[0031] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. However, any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A secondary filtration type range hood, comprising a range hood body, wherein a first grease separator is provided in the initial section of the air duct of the range hood body, characterized in that: The range hood body has a pull-out second grease separator at the end of the air duct. The second grease separator has at least two layers and has a certain horizontal tilt angle after installation.

2. The secondary filtration range hood according to claim 1, characterized in that: The second grease separator has a two-layer structure, including a guide plate and a filter plate from bottom to top. The guide plate is provided with multiple guide holes, and the filter plate is provided with a grease separation groove opposite the guide holes. The filter plate next to the grease separation groove is provided with filter holes.

3. The secondary filtration range hood according to claim 2, characterized in that: The bottom of the inclined surface of the guide plate after installation is provided with an oil collection groove, and the periphery of the guide hole is provided with an upward folded edge.

4. The secondary filtration range hood according to claim 3, characterized in that: The guide plate has a locking hole on one side and an adsorption sheet on the other side; the filter plate has a locking block on one side that matches the locking hole, and a first magnet on the other side that is attracted to the adsorption sheet.

5. The secondary filtration range hood according to claim 4, characterized in that: The second grease separator is magnetically attached to the range hood body.

6. The secondary filtration range hood according to claim 5, characterized in that: The range hood body is equipped with a second magnet, and the back of the front side plate of the baffle plate is attracted to the second magnet.

7. The secondary filtration range hood according to claim 6, characterized in that: The front side panel of the deflector is connected to a handle glass panel.

8. The secondary filtration range hood according to claim 7, characterized in that: The second grease separator is made of die-cast aluminum alloy.

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