Filter screen structure of range hood

Abstract

The filter screen structure comprises a filter screen frame, a plurality of filter through holes are evenly formed in the filter screen frame, a metal net is arranged on the filter screen frame, an annular installation groove matched with the metal net is formed in the top face of the filter screen frame, and the metal net is placed in the annular installation groove in a matched mode. A set of limiting mechanisms matched with the metal net are symmetrically arranged on the top face of the filter screen frame and located on the two sides of the metal net, and an activated carbon adsorption net located below the metal net is clamped in the filter screen frame. Compared with the prior art, the filter screen structure has the advantages that the activated carbon adsorption net is arranged between the metal net and the filter screen frame, the filtering effect of the filter screen structure is improved, and efficient filtering is achieved through cooperation of the activated carbon adsorption net and the metal net; the metal net and the activated carbon adsorption net can be detached, cleaned or replaced by opening the limiting mechanism, so that the use portability of the device is improved.

Description

Technical Field

[0001] This utility model relates to the field of range hood technology, specifically to a filter structure for a range hood. Background Technology

[0002] In range hoods, the filter is one of the key components, used to filter impurities and particulate matter from cooking fumes to maintain clean and hygienic air. However, traditional filter structures have some problems.

[0003] First, traditional filter structures typically use simple filter materials, such as metal or plastic mesh, which are ineffective at filtering. These materials have low filtration precision and cannot effectively remove fine particulate matter and harmful substances from cooking fumes.

[0004] Secondly, traditional filter structures are usually inconvenient to disassemble and clean. Because the fixing methods for metal or plastic mesh are relatively complex, tools are required for disassembly and cleaning, which causes inconvenience for users.

[0005] Therefore, we need a filter structure for range hoods that is easy to disassemble and has a good filtration effect. Utility Model Content

[0006] The technical problem this invention aims to solve is the poor filtration effect and the inconvenience of disassembly. It provides a filter structure for a range hood with good filtration effect that is easy to disassemble.

[0007] To solve the above-mentioned technical problems, the technical solution provided by this utility model is as follows: a filter screen structure for a range hood, including a filter screen frame, a plurality of filter holes evenly provided on the filter screen frame, a metal mesh provided on the filter screen frame, an annular mounting groove for cooperating with the metal mesh on the top surface of the filter screen frame, the metal mesh being placed in the annular mounting groove, a set of limiting mechanisms for cooperating with the metal mesh symmetrically provided on the top surface of the filter screen frame, the limiting mechanisms being located on both sides of the metal mesh, the limiting mechanisms including limiting plates tightly attached to the top surface of the metal mesh, and an activated carbon adsorption mesh located below the metal mesh being held in place inside the filter screen frame, the top end of the activated carbon adsorption mesh being located in the annular mounting groove tightly attached to the bottom surface of the metal mesh.

[0008] As an improvement, the limiting mechanism includes a set of connecting plates fixedly installed in an annular mounting groove. A fixing rod is fixedly connected between the connecting plates. A limiting sleeve, which is rotatably mounted on the fixing rod and fixedly connected to the limiting plate, is used to facilitate the opening and fixing of the limiting plate, thereby enabling the installation and disassembly of the activated carbon adsorption mesh and the metal mesh.

[0009] As an improvement, a return spring is provided on both sides of the limiting sleeve and the connecting plate, located around the fixed rod. A limiting rubber block is fixed on the bottom surface of the limiting plate and closely attached to the top surface of the metal mesh, which facilitates the quick installation and disassembly of the activated carbon adsorption mesh and the metal mesh, thereby improving operational efficiency.

[0010] As an improvement, the filter frame has an inverted conical structure, and the activated carbon adsorption mesh is also inverted conical in shape and closely attached to the inner wall of the filter frame. An oil sludge box is installed at the bottom of the filter frame to increase the contact area between the oil fumes and the filter structure, improve filtration efficiency and quality, and facilitate the collection of oil sludge.

[0011] The advantages of this utility model compared with the prior art are: an activated carbon adsorption mesh is set between the metal mesh and the filter mesh frame to improve the filtration effect of the filter mesh structure, and high-efficiency filtration is achieved by the combination of the activated carbon adsorption mesh and the metal mesh.

[0012] The metal mesh and activated carbon adsorption mesh are secured to the filter frame by a limiting mechanism. Opening the limiting mechanism allows the metal mesh and activated carbon adsorption mesh to be disassembled, cleaned, or replaced, improving the portability of the device. Attached Figure Description

[0013] Figure 1 This is a first perspective view of the filter structure of a range hood according to the present invention.

[0014] Figure 2 This is a second perspective view of the filter structure of a range hood according to this utility model.

[0015] Figure 3 This is a three-dimensional view of the filter frame of a range hood according to the present invention.

[0016] Figure 4 This is a three-dimensional view of the disassembled filter structure of a range hood according to this utility model.

[0017] Figure 5 yes Figure 3 A schematic diagram of the structure of part A.

[0018] As shown in the figure: 1. Filter screen frame; 2. Filter through hole; 3. Metal mesh; 4. Annular mounting groove; 5. Limiting mechanism; 6. Limiting plate; 7. Activated carbon adsorption mesh; 8. Connecting plate; 9. Fixing rod; 10. Limiting sleeve; 11. Return spring; 12. Limiting rubber block; 13. Oil stain box. Detailed Implementation

[0019] The present invention will now be described in further detail with reference to the accompanying drawings.

[0020] Combined with appendix Figure 1-5As shown, a filter structure for a range hood includes a filter frame 1, with a plurality of filter holes 2 evenly distributed on the filter frame 1, a metal mesh 3 on the filter frame 1, and an annular mounting groove 4 on the top surface of the filter frame 1 to accommodate the metal mesh 3. The metal mesh 3 is placed in the annular mounting groove 4. A set of limiting mechanisms 5 to accommodate the metal mesh 3 are symmetrically arranged on the top surface of the filter frame 1. The limiting mechanisms 5 are located on both sides of the metal mesh 3 and include a limiting plate 6 that is close to the top surface of the metal mesh 3. An activated carbon adsorption mesh 7 is placed inside the filter frame 1 below the metal mesh 3. The top of the activated carbon adsorption mesh 7 is located in the annular mounting groove 4 and is close to the bottom surface of the metal mesh 3. The filter frame 1 has an inverted conical structure, and the activated carbon adsorption mesh 7 is also inverted conical and is close to the inner wall of the filter frame 1. An oil stain box 13 is placed at the bottom of the filter frame 1 to increase the contact area between the oil fumes and the filter structure.

[0021] With the above structure, firstly, the activated carbon adsorption mesh 7 is placed inside the filter frame 1, so that it is tightly attached to the inner wall of the filter frame 1. The top of the activated carbon adsorption mesh 7 is located in the annular mounting groove 4. Then, the metal mesh 3 is placed in the annular mounting groove 4, tightly attached to the top of the activated carbon adsorption mesh 7. Then, the limiting plate 6 is released so that it is tightly attached to the top surface of the metal plate and the limiting plate 6 is fixed, thus completing the assembly operation of the filter structure. The filter frame 1 can then be installed on the main body of the range hood. When the main body of the range hood is working, the oil fumes enter the filter frame 1 through the filter holes 2 of the filter frame 1. The activated carbon adsorption mesh 7 filters the oil fumes, removing a large amount of dust and other impurities. Then, the filtered gas is discharged through the metal mesh 3 and the exhaust pipe of the main body of the range hood. Due to the inverted conical structure of the filter frame 1 and the activated carbon adsorption mesh 7, excess oil automatically falls into the oil collection box 13.

[0022] The limiting mechanism 5 includes a set of connecting plates 8 fixedly installed in the annular mounting groove 4. A fixing rod 9 is fixedly connected between the connecting plates 8. A limiting sleeve 10, which is fixedly connected to the limiting plate 6, is rotatably mounted on the fixing rod 9. A return spring 11 located around the fixing rod 9 is connected between the limiting sleeve 10 and the connecting plate 8 on both sides. A limiting rubber block 12, which is close to the top surface of the metal mesh 3, is fixedly installed on the bottom surface of the limiting plate 6.

[0023] With the above structure, when disassembling the activated carbon adsorption net 7 and the metal net 3, the limiting plate 6 can be rotated away from the metal net 3 to disassemble them. After replacing the activated carbon adsorption net 7 and the metal net 3, the limiting plate 6 is released so that the limiting rubber block 12 is pressed tightly against the top surface of the metal net 3 under the action of the return spring 11, thus completing the limiting installation operation.

[0024] In the specific implementation of this utility model, firstly, the limiting plate 6 is rotated away from the annular mounting groove 4. Then, the activated carbon adsorption mesh 7 is placed inside the filter mesh frame 1, so that it is tightly attached to the inner wall of the filter mesh frame 1. The top of the activated carbon adsorption mesh 7 is located inside the annular mounting groove 4. Then, the metal mesh 3 is placed inside the annular mounting groove 4, tightly attached to the top of the activated carbon adsorption mesh 7. Then, the limiting plate 6 is released so that the limiting rubber block 12 is tightly attached to the top surface of the metal mesh 3 under the action of the return spring 11, thus completing the assembly operation of the filter mesh structure. The filter mesh frame 1 can then be installed on the main body of the range hood.

[0025] When the range hood is working, the fumes enter the filter frame 1 through the filter holes 2. The activated carbon adsorption net 7 filters the fumes, removing a large amount of dust and other impurities. The filtered gas is then discharged through the metal mesh 3 and the exhaust pipe of the range hood. Due to the inverted conical structure of the filter frame 1 and the activated carbon adsorption net 7, excess oil automatically falls into the oil collection box 13.

[0026] When disassembling the activated carbon adsorption mesh 7 and the metal mesh 3, the limiting plate 6 can be rotated away from the metal mesh 3 to disassemble it. The limiting plate 6 is then released so that the limiting rubber block 12 is pressed tightly against the top surface of the metal mesh 3 under the action of the return spring 11, thus completing the inspection and maintenance operation.

[0027] The above description of the present invention and its embodiments is non-limiting. The drawings show only one embodiment of the present invention, and the actual structure is not limited thereto. In short, if a person skilled in the art is inspired by the above, and does not deviate from the purpose of the present invention, without inventive design, a structure and embodiment similar to the technical solution should fall within the scope of protection of the present invention.

Claims

1. A filter structure for a range hood, comprising a filter frame (1), wherein the filter frame (1) is provided with a plurality of filter holes (2) evenly distributed thereon, and a metal mesh (3) is provided on the filter frame (1), characterized in that: The top surface of the filter frame (1) is provided with an annular mounting groove (4) for the metal mesh (3). The metal mesh (3) is placed in the annular mounting groove (4). The top surface of the filter frame (1) is symmetrically provided with a set of limiting mechanisms (5) for the metal mesh (3). The limiting mechanisms (5) are located on both sides of the metal mesh (3). The limiting mechanisms (5) include a limiting plate (6) that is close to the top surface of the metal mesh (3). An activated carbon adsorption mesh (7) located below the metal mesh (3) is placed inside the filter frame (1). The top of the activated carbon adsorption mesh (7) is located in the annular mounting groove (4) and is close to the bottom surface of the metal mesh (3).

2. The filter structure of a range hood according to claim 1, characterized in that: The limiting mechanism (5) includes a set of connecting plates (8) fixedly installed in the annular mounting groove (4), and a fixing rod (9) is fixedly connected between the connecting plates (8). A limiting sleeve (10) fixedly connected to the limiting plate (6) is rotatably mounted on the fixing rod (9).

3. The filter structure of a range hood according to claim 2, characterized in that: The limiting sleeve (10) is connected to the connecting plate (8) on both sides by a return spring (11) located around the fixed rod (9), and the bottom surface of the limiting plate (6) is fixed with a limiting rubber block (12) that is close to the top surface of the metal mesh (3).

4. The filter structure of a range hood according to claim 1, characterized in that: The filter frame (1) has an inverted conical structure, and the activated carbon adsorption mesh (7) is in close contact with the inner wall of the filter frame (1) and has an inverted conical structure. An oil stain box (13) is placed at the bottom of the filter frame (1).

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