CN108072071B

CN108072071B - Fume filter

Info

Publication number: CN108072071B
Application number: CN201710630890.8A
Authority: CN
Inventors: 金文彬; 叶丰; 申志贤; 茅忠群; 诸永定
Original assignee: Ningbo Fotile Kitchen Ware Co Ltd
Current assignee: Ningbo Fotile Kitchen Ware Co Ltd
Priority date: 2017-07-28
Filing date: 2017-07-28
Publication date: 2024-01-16
Anticipated expiration: 2037-07-28
Also published as: CN108072071A

Abstract

The utility model relates to a lampblack filtering device, which comprises a body (1), wherein the body (1) is provided with an upper vent (14) and at least three through holes (11) which are communicated with an inner cavity (19) of the body (1); the method is characterized in that: the body (1) comprises an annular upper seat (15), a bottom surface of a hollowed-out structure and at least three connecting rods (17) connected between the upper seat (15) and the bottom surface; the gaps between the adjacent connecting rods (17) form the through holes (11); the filter frames (3) are detachably connected to the through holes (11), and at least two strip-shaped air inlet holes (32) are formed in the filter frames (3) at intervals. Compared with the prior art, the oil net structure for the range hood provided by the utility model not only can ensure the oil smoke sucking and discharging effect, but also can not hang oil and drip oil.

Description

Fume filter

Technical Field

The utility model relates to the field of range hoods, in particular to a lampblack filtering device for a range hood.

Background

The utility model of China patent ZL201520085286.8 discloses a filter screen of a range hood, which comprises a filter screen main body and an oil guiding groove, wherein the oil guiding groove is arranged at the edge of the filter screen main body, and the filter screen main body is concave towards the direction of an air duct of the range hood, and is characterized in that: the filter screen main part includes No. one filter screen board, no. two filter screen boards, no. three filter screen boards and No. four filter screen boards, no. one filter screen board and No. three filter screen boards are trapezium structure, no. two filter screen boards and No. four filter screen boards are triangle-shaped structure, the topside of No. one filter screen board is connected with the topside of No. three filter screen boards, two waists of No. one filter screen board are connected with No. two filter screen boards and No. four filter screen boards respectively, two waists of No. three filter screen boards are connected with No. two filter screen boards and No. four filter screen boards respectively.

The filter screen avoids oil hanging and oil dripping, but in order to ensure that the oil hanging and oil dripping are avoided, ventilation flow is lost, and especially after the filter screen is used for a period of time, oil stain paste is in meshes, smoke discharging resistance is greatly increased, and the smoke discharging of oil fume is influenced.

Disclosure of Invention

The utility model aims to solve the technical problem of providing the oil smoke filtering device which is convenient for users to clean by themselves and can ensure the oil smoke sucking and discharging effect, without oil hanging and oil dripping.

The technical scheme adopted for solving the technical problems is as follows: the oil fume filtering device comprises a bucket-shaped body with a big mouth and a small bottom, wherein the body is provided with at least three through holes communicated with an inner cavity of the body;

the method is characterized in that:

the body comprises an annular upper seat, a bottom surface of a hollowed-out structure and at least three connecting rods connected between the upper seat and the bottom surface; the gaps between the adjacent connecting rods form the through holes;

the filter frame is detachably connected to the through hole, and at least two strip-shaped air inlets are formed in the filter frame at intervals.

The air inlet holes can be arranged in various modes, preferably, the air inlet holes can be transversely arranged, and the air inlet holes are parallel to each other. The structure greatly reduces the suction and discharge resistance of the oil smoke, and the oil smoke can directly enter the fan system of the range hood through the air inlets and is discharged.

The periphery of the air inlet hole is connected with a sleeve protruding into the inner cavity of the body. The design of the sleeve forms a barrier for the oil droplets, avoiding the dripping of the oil droplets from the inlet aperture.

The upper wall surface and the lower wall surface of the sleeve are inclined downwards so that oil drops can flow downwards along the upper wall surface and the lower wall surface of the sleeve and drop on the bottom surface to enter the oil cup below the bottom surface; the structure plays an active guiding role on the flow of oil drops, and reduces the residence time of the oil drops on the sleeve, thereby reducing the adhesion of the oil drops on the sleeve and prolonging the cleaning period.

Preferably, the included angle between the upper wall surface and the bottom surface is more than or equal to 12.5 degrees.

Further, the outer end face of the sleeve is flush; the lower wall surface of the sleeve is connected with the upper wall surface of the adjacent sleeve to form a step-shaped structure so as to further promote the flow speed and the guiding function of oil drops on the wall surface of the sleeve.

As a further improvement of the above embodiments, a folded edge turned inward may be connected to the periphery of the through hole. The design of hem can play the effect that increases frame intensity on the one hand, can prevent in addition that the oil on the oil net frame inner wall from dripping through the through-hole effectively.

For the installation and the dismantlement of convenient aluminium frame, can be in be connected with on the hem protrusion in the hem is used for connecting the connecting seat of filter frame, filter frame and corresponding have the clearance between the connecting rod. The gap can also be used as an air inlet, so that the air inlet area of the oil smoke is further increased, the suction resistance of the oil smoke is reduced, and the suction effect of the oil smoke is improved.

In the above embodiments, the shapes of the upper seat and the bottom surface may have various structures, preferably, the upper seat and the bottom surface are both rectangular, the area of the bottom surface is smaller than the area of the upper seat, and the bottom surface is located right below the upper seat; the four connecting rods are respectively connected to the corresponding end angle positions of the upper seat and the bottom surface. The structure forms a quadrangular frustum pyramid structure, has a certain guiding effect on oil drops, is convenient for the oil drops to flow along the inclined plane and directly drop into the bottom surface; meanwhile, the device has a certain guiding effect on rising oil smoke, and vortex is avoided, so that noise is reduced.

To facilitate cleaning of the filter tray, the bottom surface may include an annular lower seat and a filter screen removably attached to the lower seat. The filter screen is designed to be a detachable structure, so that the filter screen can be taken down and cleaned independently.

In the above schemes, in order to facilitate the installation of the oil cup, a hook may be connected to the bottom surface.

Compared with the prior art, the oil fume filtering device provided by the utility model not only can ensure the oil fume sucking and discharging effect, but also can not hang oil and drip oil; in the preferred scheme, the detachable connection mode between the filter frame and the body and the structural design of the filter frame enable the oil screen to be convenient to clean, improve the oil separation effect in the smoke, reduce noise and the like.

Drawings

FIGS. 1 and 2 are schematic perspective views of different angles according to embodiments of the present utility model;

FIG. 3 is a schematic perspective view illustrating a usage state of an embodiment of the present utility model;

fig. 4 is a perspective view of a filter frame according to an embodiment of the utility model after being disassembled.

Detailed Description

The utility model is described in further detail below with reference to the embodiments of the drawings.

As shown in fig. 1 to 4, the fume filtering apparatus includes:

the body 1 is a basic frame of a filter screen and consists of an annular upper seat 15 and an annular lower seat 16, and at least three connecting rods 17 are connected between the upper seat 15 and the lower seat 16.

In this embodiment, the upper seat 15 and the lower seat 16 are both rectangular structures, and the port of the upper seat 15 is the vent 14; and the area of the lower seat 16 is smaller than that of the upper seat 15, and the lower seat 16 is positioned right below the upper seat 15; four connecting rods are arranged, and gaps between adjacent connecting rods 17 form through holes 11; the through hole 11 has an inclined ladder-shaped structure.

The middle through hole of the lower seat 16 is provided with a filter screen 2, and the filter screen 2 is detachably connected with the lower seat 16 in the embodiment so as to be convenient to detach and clean. The screen 2 may also be integrally formed with the lower seat 16.

The body 1 in this embodiment is integrally formed.

The periphery of each through hole 11 is provided with a folded edge 12 which is turned inwards; the folded edge 12 is connected with a connecting seat 13 protruding outwards from the folded edge 12, and a screw hole 18 is arranged on the connecting seat 13.

The four filter frames 3 are respectively arranged in the four through holes 11; comprises a frame plate 31 and a plurality of strip-shaped air inlets 32 transversely arranged on the frame plate 31, wherein the air inlets 32 are mutually parallel; a sleeve 33 protruding towards the center of the body is connected to the periphery of each air inlet hole 32, and the upper wall surface 331 and the lower wall surface 332 of the sleeve 33 are inclined downwards so as to facilitate oil dripping; in this embodiment, the included angle between the upper wall surface 331 and the lower wall surface 332 and the horizontal plane, i.e. the filter screen, is 20 °; the included angle is more than or equal to 12.5 degrees, so that the oil can smoothly slide down and drop on the filter screen.

The upper wall 331 and the lower wall 332 are connected by a cambered surface 333 to facilitate cleaning of the sidewall grease and the sleeve 33.

The outer edges of the upper wall surface 331 and the lower wall surface 332 on the same air inlet 32 are flush, and the filter frame 3 is obliquely arranged, so that the upper wall surface 331 of the air inlet 32 and the lower wall surface 332 of the adjacent air inlet are connected together to form a step-shaped structure, so that the dropped oil drops are further guided to smoothly drop onto the filter screen 2.

The frame plate 31 is provided with mounting holes 34 corresponding to the screw holes 18, and the frame plate 31 is mounted to the respective connection seats 13 by screws, thereby mounting the frame plate 31 to the respective through holes 11 of the body. Because the connecting seat 13 protrudes outwards from the folded edge 12, a gap 4 for oil smoke to pass through is formed between the frame plate 31 and the body 1 after the frame plate 31 is installed, so that the air inlet area is further increased, and the suction capacity of the range hood is improved.

When the range hood works, the oil smoke rises along the frame plate 31, and is sucked by each air inlet hole in the rising process, and as the air inlet holes are arranged on the rising path of the oil smoke and each air inlet hole is recessed inwards relative to the frame plate, the resistance of the oil smoke entering each air inlet hole is small, the structural ventilation area of each air inlet hole is large, and the oil smoke can directly enter a fan system of the range hood and be discharged after entering.

In the rising process of the oil smoke, the oil smoke can enter from the gap between the filter frame and the body, so that the air inlet area of the oil smoke is further increased, and the oil smoke sucking and exhausting effect is improved.

Claims

1. The oil fume filtering device comprises a bucket-shaped body (1) with a small opening bottom, wherein the body (1) is provided with at least three through holes (11) communicated with an inner cavity (19) of the body (1);

the method is characterized in that:

the body (1) comprises an annular upper seat (15), a bottom surface of a hollowed-out structure and at least three connecting rods (17) connected between the upper seat (15) and the bottom surface; the gaps between the adjacent connecting rods (17) form the through holes (11);

the filter frame (3) is detachably connected to the through hole (11), and at least two strip-shaped air inlets (32) are formed in the filter frame (3) at intervals.

2. A smoke filtering device according to claim 1, characterized in that the air inlet holes (32) are arranged transversely and that the air inlet holes (32) are parallel to each other.

3. A smoke filter device according to claim 2, characterized in that the periphery of the inlet aperture (32) is connected with a sleeve (33) protruding into the inner cavity (19) of the body.

4. A smoke filter device according to claim 3, characterized in that both the upper wall (331) and the lower wall (332) of the sleeve (33) are inclined downwards.

5. The fume filter apparatus according to claim 4, wherein the angle between the upper wall surface (331) and the lower wall surface (332) and the bottom surface is not less than 12.5 °.

6. A fume filter device according to claim 5, characterized in that the outer end face of said sleeve (33) is flush; the lower wall surface (332) of the sleeve is connected with the upper wall surface (331) of the adjacent sleeve to form a step-shaped structure.

7. A smoke filter device according to any one of claims 1-6, characterized in that the periphery of the through hole (11) is connected with an inwardly turned flange (12).

8. The fume filtering device according to claim 7, characterized in that said flange (12) is connected with a connecting seat (13) protruding from said flange (12) for connecting said filter frame (3), said filter frame (3) and said connecting rod (17) are in clearance.

9. The fume filtration device according to claim 8, characterized in that said upper seat (15) and said bottom surface are both rectangular, the area of said bottom surface is smaller than the area of said upper seat (15), and said bottom surface is located directly under said upper seat (15); four connecting rods (17) are respectively connected to the corresponding end angle positions of the upper seat (15) and the bottom surface.

10. A smoke filter device according to claim 9, characterized in that said bottom surface comprises an annular lower seat (16) and a sieve (2) removably connected to said lower seat (16).