CN211876117U - A range hood with a double-layer filter - Google Patents

Abstract

The utility model discloses a range hood with a double-layer filter, comprising a smoke collecting hood, a smoke collecting cavity being arranged inside the smoke collecting hood, and a smoke collecting port communicating with the smoke collecting cavity being arranged on the smoke collecting hood; a double-layer filter structure covering the smoke collecting port, the double-layer filter structure comprising an inner filter and an outer filter, a connecting structure being arranged on the side wall of the smoke collecting cavity near the smoke collecting port, the inner filter being connected to the smoke collecting hood through the connecting structure, a mounting portion being arranged on the outer filter, and the outer filter being mounted on the smoke collecting hood through the mounting portion, so as to improve the efficiency of intercepting oil smoke.

Description

A range hood with a double-layer filter

technical field

The utility model relates to the field of range hoods, in particular to a range hood with a double-layer filter screen.

Background technique

The current range hood filter is usually a single-layer structure, and in order not to affect its air intake area and the performance of the hood, grille mesh filters are often used, resulting in a large ventilation area and poor oil fume interception effect. In order to improve the fume interception effect, the range hood adopts a double-layer or multi-layer filter structure, and the inner and outer filters are fixed by screws or buckles, which makes the daily installation and removal of users extremely inconvenient and inconvenient. Maintenance and cleaning of filters.

Utility model content

The utility model aims to solve one of the problems existing in the related art at least to a certain extent. Therefore, the purpose of the utility model is to propose a range hood with a double-layer filter screen to improve the interception efficiency of oil fume.

The above purpose is achieved through the following technical solutions:

A range hood with a double-layer filter screen includes a fume collecting hood, a fume collecting cavity is arranged in the fume collecting hood, and a fume collecting port connected to the fume collecting cavity is arranged on the fume collecting hood ;Double-layer filter screen structure, which is covered on the smoke collecting port, the double-layer filter screen structure includes an inner layer filter screen and an outer layer filter screen, and is arranged on the side wall of the smoke collecting cavity near the smoke collecting port. There is a connection structure, the inner layer filter screen is connected with the smoke collecting hood through the connecting structure, the outer layer filter screen is provided with a mounting part, and the outer layer filter screen is installed on the smoke collecting hood through the mounting part superior.

As a further improvement of the present invention, the connecting structure is a card slot, and the edge of the inner filter screen is inserted into the card slot.

As a further improvement of the present invention, an elastic sheet is arranged in the card slot, and the elastic sheet is fixedly connected with the bottom of the card slot.

As a further improvement of the present invention, the elastic pieces are M-shaped elastic pieces or V-shaped elastic pieces.

As a further improvement of the present invention, the elastic deformation surface of the elastic sheet is in contact with the edge of the inner filter screen inserted into the card slot.

As a further improvement of the present invention, it also includes a fixed connector, the mounting portion is a flange formed by the outer filter screen extending outward, a first mounting hole is provided on the flange, and a first mounting hole is provided on the flange. The fume hood is provided with a second installation hole matched with the first installation hole, and the fixed connection piece connects the outer filter screen and the smoke collector through the first installation hole and the second installation hole Hood connection.

As a further improvement of the present invention, the outer filter screen is a grid filter screen, and the inner layer filter screen is a honeycomb plate filter screen.

As a further improvement of the present invention, the inner filter screen is made of plastic or metal.

As a further improvement of the present invention, the thickness of the inner filter screen is 5-25mm.

Compared with the prior art, the utility model at least includes the following beneficial effects:

1. The utility model proposes a range hood with a double-layer filter screen, the outer filter screen is a grill filter screen, and the inner layer filter screen is a honeycomb panel filter screen, which is fixed by a card slot and a shrapnel, which effectively improves the suction of oil fume. The oil fume interception effect of the machine, and the inner filter screen is convenient for users to assemble and disassemble and daily maintenance and cleaning.

Description of drawings

Fig. 1 is the structural representation of the range hood in the embodiment;

Fig. 2 is another structural schematic diagram of the range hood in the embodiment;

Fig. 3 is another structural schematic diagram of the range hood in the embodiment;

FIG. 4 is an exploded schematic view of the card slot and the elastic piece in the embodiment.

Detailed ways

The following examples illustrate the present invention, but the present invention is not limited by these examples. Modifications to the specific embodiments of the present invention or equivalent replacement of some technical features without departing from the spirit of the solutions of the present invention shall be included in the scope of the technical solutions claimed in the present invention.

Referring to the accompanying drawings 1-4, there is shown a range hood with a double-layer filter screen proposed by the present invention, which includes a fume collecting hood 1, and a fume collecting cavity 11 is arranged in the fume collecting hood 1, and in the fume collecting hood 1 The smoke collecting hood 1 is provided with a smoke collecting port 12 that communicates with the smoke collecting cavity 11; a double-layer filter screen structure is covered on the smoke collecting port 12, and the double-layer filter screen structure includes an inner layer filter screen 21 and the outer layer filter screen 22, a connecting structure is provided on the side wall of the smoke collecting cavity 11 near the smoke collecting port 12, and the inner layer filter screen 21 is connected with the smoke collecting hood 1 through the connecting structure. A mounting portion is provided on the outer layer filter screen 22 , and the outer layer filter screen 22 is mounted on the fume collecting hood 1 through the mounting portion. Among them, Figure 1 is a schematic structural diagram of a range hood with a double-layer filter screen installed, Figure 2 is a schematic structural diagram of a range hood with an inner layer filter screen installed but not an outer layer filter screen, and Figure 3 is a range hood without the double-layer filter screen installed. Schematic diagram of the structure of the layer filter.

The connection structure is a card slot 3 , and the edge of the inner filter screen 21 is inserted into the card slot 3 . As shown in FIG. 4 , an elastic piece 31 is provided in the card slot 3 , and the elastic piece 31 is fixedly connected with the bottom of the card slot 3 . A mounting hole 41 is provided on the elastic piece 31 , and the elastic piece 31 is fixedly installed on the bottom of the slot 3 by screws. The elastic pieces 31 are M-shaped elastic pieces or V-shaped elastic pieces or other shapes. The elastic deformation surface of the elastic sheet 31 abuts against the edge of the inner filter screen 21 inserted into the card slot 3 . In this embodiment, the elastic piece 31 is an M-shaped elastic piece. The card slot 3 includes a left card slot 3 and a right card slot 3. The left card slot 3 and the right card slot 3 are symmetrically arranged on the side wall of the smoke collecting cavity 11 near the smoke collecting port 12. When installing, first filter the inner layer. The left edge of the mesh 21 is snapped into the left slot 3, the inner filter 21 is pressed to the left, and the right edge of the inner filter 21 is snapped into the right slot 3 by the elastic action of the elastic sheet 31. . When disassembling, the user can press the inner layer filter screen 21 to the left and right sides by hand, so that the inner layer filter screen 21 can be separated from the card slot 3 to complete the assembly and disassembly, which is convenient for daily maintenance and cleaning. In this embodiment, the card slot 3 is a U-shaped card slot.

It also includes a fixed connector, the mounting part is a flange 4 formed by the outer filter screen 22 extending outward, and a mounting hole 41 is provided on the flange 4, and the fixed connector passes through the mounting hole 41 Connect the outer filter screen 22 to the fume collecting hood 1 . In this embodiment, the fixed connecting member is a screw.

The outer layer filter screen 22 is a grid filter screen, and the inner layer filter screen 21 is a honeycomb plate filter screen. The honeycomb structure can not only ensure the through-hole area, reduce the impact on the air volume noise of the hood, but also effectively increase the contact area and time when the oil fume passes through, thereby improving the oil fume interception efficiency. After testing, the oil separation degree of the range hood can be improved by 3-4 percentage points.

The inner layer filter screen 21 is made of plastic, aluminum or other materials. In this embodiment, the inner filter screen 21 is made of plastic material. The thickness of the inner layer filter screen 21 is 5-25mm, that is, the thickness of the honeycomb panel filter screen is 5-25mm. In this embodiment, the thickness of the honeycomb panel filter screen is 15mm.

The above preferred embodiments should be regarded as examples of the embodiments of the present application, and all technical deductions, replacements, improvements, etc. that are similar to, similar to, or based on the present application should be regarded as the protection scope of this patent.

Claims (9)

1. A range hood with double-layer filter screen is characterized by comprising

The smoke collecting cover is internally provided with a smoke collecting cavity, and the smoke collecting cover is provided with a smoke collecting port communicated with the smoke collecting cavity;

double-deck filter screen structure, the lid closes on the collection mouth, double-deck filter screen structure includes inlayer filter screen and outer filter screen collection smoke chamber lateral wall is close to collection mouth department is equipped with connection structure, the inlayer filter screen passes through connection structure is connected with the collection petticoat pipe, be provided with the installation department on the outer filter screen, outer filter screen passes through the installation department is installed on the collection petticoat pipe.

2. The range hood with the double-layer filter screen according to claim 1, wherein: the connecting structure is a clamping groove, and the edge of the inner-layer filter screen is inserted into the clamping groove.

3. The range hood with the double-layer filter screen according to claim 2, wherein: an elastic sheet is arranged in the clamping groove and is fixedly connected with the bottom of the clamping groove.

4. The range hood with double-layer filter screen according to claim 3, characterized in that: the elastic sheet is an M-shaped elastic sheet or a V-shaped elastic sheet.

5. The range hood with double-layer filter screen according to claim 4, characterized in that: the elastic deformation surface of the elastic sheet is abutted against the edge of the inner-layer filter screen inserted into the clamping groove.

6. The range hood with the double-layer filter screen according to claim 1, wherein: still include fixed connector, the installation department does the outside flange that extends the formation of outer filter screen be equipped with first mounting hole on the flange be equipped with on the collection petticoat pipe with first mounting hole complex second mounting hole, fixed connector passes through first mounting hole with the second mounting hole will outer filter screen with the collection petticoat pipe is connected.

7. The range hood with the double-layer filter screen according to claim 1, wherein: the outer filter screen is the grid filter screen, the inlayer filter screen is the honeycomb panel filter screen.

8. The range hood with the double-layer filter screen according to claim 1, wherein: the inner layer filter screen is made of plastic or metal.

9. The range hood with the double-layer filter screen according to claim 1, wherein: the thickness of the inner layer filter screen is 5-25 mm.

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