CN109373381B

CN109373381B - Fume exhauster

Info

Publication number: CN109373381B
Application number: CN201811197909.5A
Authority: CN
Inventors: 文士胜; 潘叶江
Original assignee: Vatti Co Ltd
Current assignee: Vatti Co Ltd
Priority date: 2018-10-15
Filing date: 2018-10-15
Publication date: 2024-07-12
Anticipated expiration: 2038-10-15
Also published as: CN109373381A

Abstract

The invention discloses a range hood, which comprises a machine body, an air inlet arranged on the machine body, an oil net arranged at the air inlet, and a filtering membrane for purifying oil fume, wherein a first fixed shaft and a second fixed shaft are respectively arranged at two ends of the filtering membrane, and the filtering membrane is arranged at one side, close to the air inlet, of the oil net and is fixed on the machine body through the first fixed shaft and the second fixed shaft. The invention has at least the following advantages: 1. under the synergistic effect of the oil net and the filtering membrane, grease particles with various particle diameters are effectively adsorbed, meanwhile, harmful gas in the oil fume is adsorbed, the oil fume purifying effect is good, the emission of harmful substances is reduced, and the physical health of a user is ensured; 2. the filtering membrane has a simpler structure, realizes four different ways of replacing the filtering membrane, saves time and labor when replacing the filtering membrane, and is convenient to clean.

Description

Fume exhauster

Technical Field

The invention relates to the technical field of range hoods, in particular to a range hood with efficient oil fume purification.

Background

The range hood is an indispensable kitchen electric product of ordinary families. The fume purification of the existing range hood mainly depends on a front-end oil screen and a volute wind wheel of the range hood. The gap of the oil net is generally more than 0.5mm, and the oil net with the gap smaller than 0.5mm has complex manufacturing process and high manufacturing cost, so that the oil net is difficult to be applied to actual products. The diameter of the oil smoke particles generated by cooking is far smaller than 0.5mm, so that only a part of oil adheres to the oil screen, most of oil smoke enters the volute wind wheel, and along with the high-speed rotation of the wind wheel, a part of oil adheres to the wind wheel blades and the volute flow passage, and the other part of oil smoke is discharged outside the chamber, so that environmental pollution is caused. In the daily cleaning process, a user can detach the cleaning oil net by himself, but the wind wheel volute is difficult to clean, the flow channel can be blocked along with daily accumulation of grease, the smoke discharging amount is seriously influenced, and the health of indoor personnel is damaged.

The components of the oil smoke besides grease also have various harmful gases, such as carbon monoxide and nitrogen oxides which are incompletely burnt and harmful gases generated by the high temperature of the grease. The common range hood can only absorb grease, has no method for absorbing harmful gas, and can only exhaust the harmful gas outdoors, thereby causing environmental pollution.

In order to improve the effect of purifying the oil smoke and the smoke, an adsorption layer is arranged between the oil net and the air inlet, but the adsorption material can cause excessive adsorption of grease to block the smoke to pass through and cause unsmooth smoke discharge when the service time of the adsorption material is too long. Therefore, the adsorbent material must be replaced after a period of use. Usually, a manual replacement mode is adopted, so that the replacement operation is complicated, and the cost is high.

Therefore, it is necessary to design a range hood which can efficiently remove grease and adsorb harmful gases and is convenient for daily cleaning.

Disclosure of Invention

Aiming at the current state of the art, the invention provides the range hood which can efficiently adsorb grease and harmful gas and is convenient for users to manage.

According to the purpose of the invention, a range hood is provided, which comprises a machine body, an air inlet arranged on the machine body, and an oil net arranged at the air inlet, wherein the range hood further comprises a filtering membrane for purifying oil fume, a first fixed shaft and a second fixed shaft are respectively arranged at two ends of the filtering membrane, and the filtering membrane is arranged at one side of the oil net close to the air inlet and is fixed on the machine body through the first fixed shaft and the second fixed shaft.

In a first embodiment, one end of the filtering membrane is detachably connected to the first fixed shaft, and the other end is detachably connected to the second fixed shaft.

In a second embodiment, one end of the filtering membrane is detachably connected with the first fixing shaft, the other end of the filtering membrane is rotatably wound on the second fixing shaft, a second storage device for receiving the filtering membrane with the service life reaching the end is sleeved in the middle section of the second fixing shaft, and a second opening for the filtering membrane to movably pass through is formed in the side wall of the second storage device.

In a third embodiment, one end of the filtering membrane is wound on the first fixed shaft and rotated into a drum, and the other end is detachably connected with the second fixed shaft. Specifically, the middle section of the first fixed shaft is sleeved with a first storage device for storing a filtering membrane which is not used yet and rotates to form a winding drum, and the side wall of the first storage device is provided with a first opening through which the filtering membrane movably passes.

In a fourth embodiment, one end of the filtering membrane is wound on the first fixed shaft and rotated into a drum, and the other end is rotatably wound on the second fixed shaft. Specifically, a first storage device for storing a filtering membrane which is not used yet and rotates to form a winding drum is sleeved at the middle section of the first fixed shaft, and a first opening through which the filtering membrane movably passes is formed in the side wall of the first storage device; the middle section of the second fixed shaft is sleeved with a second storage device for receiving the filtering membrane with the service life reaching the end, and the side wall of the second storage device is provided with a second opening for the filtering membrane to movably pass through.

Further, the filter membrane filter further comprises a fixing frame connected with the oil screen, and the fixing frame is arranged between the oil screen and the filter membrane.

Further, a flange extending towards the oil screen is formed on the periphery of the fixing frame, a plurality of notches are formed in the upper flange of the fixing frame, and a plurality of flanges extending upwards are respectively arranged in the upper flange and the lower flange of the fixing frame; the top of the oil screen is provided with upward convex blocks and downward grooves, the convex blocks correspond to the notches of the fixing frame in position and number, and the grooves correspond to the flanges of the upturn one by one in position and number; the bottom of the oil screen is provided with upward pits, and the pits correspond to the positions and the number of the flanges of the downward flanging.

Further, the filter membrane filter further comprises a protective bracket, and the protective bracket is arranged between the filter membrane and the air inlet.

Further, the organism is located the opposite both sides of air intake are equipped with respectively and hold the chamber, hold the both ends in chamber and be equipped with the mounting hole that extends outwards respectively, the mounting hole respectively with first fixed axle with the second fixed axle cooperatees, its lateral wall be equipped with towards the air intake direction just supplies the opening that filtration membrane activity passed.

Further, the filtering membrane is any one of activated carbon fiber, nano graphene or nano fullerene.

Compared with the prior art, the invention has at least the following beneficial effects:

1. Under the synergistic effect of the oil net and the filtering membrane, grease particles with various particle diameters are effectively adsorbed, meanwhile, harmful gas in the oil fume is adsorbed, the oil fume purifying effect is good, the emission of harmful substances is reduced, and the physical health of a user is ensured;

2. the filtering membrane has a simple structure, and after the filtering membrane is accumulated with oil smoke for a period of time, a new filtering membrane can be manually replaced, and the filtering membrane is simple and reliable, has low cost and is convenient to clean although the replacing and using frequency is high;

3. One end or two ends of the filtering membrane are rotated into a winding drum, so that the purpose of automatically replacing and/or recovering the filtering membrane is realized, the disassembly and assembly frequency is greatly reduced, the replacement and recovery of the filtering membrane are time-saving and labor-saving, and the later disassembly and cleaning are convenient;

4. The filtering membrane is fixed between the fixing frame and the support, so that the filtering membrane is protected from being damaged by external force.

Drawings

Fig. 1 is a schematic exploded view of a range hood in embodiment 1;

FIG. 2 is a schematic view showing the structure of the filtering membrane of FIG. 1 mounted to a range hood;

FIG. 3 is a schematic view of the assembly of the oil screen, the fixing frame, the filtering membrane and the protective bracket in FIG. 1;

FIG. 4 is a top view of FIG. 5;

FIG. 5 is a schematic view showing a structure in which the filtering membrane of FIG. 1 is coupled to a fixed shaft.

FIG. 6 is an enlarged partial view of portion A of FIG. 1;

fig. 7 is a partial enlarged view of a portion B in fig. 1.

Detailed Description

The following examples illustrate the invention, but the invention is not limited to these examples. Modifications and equivalents of some of the technical features of the specific embodiments of the present invention may be made without departing from the spirit of the present invention, and they are all included in the scope of the claimed invention.

Example 1

As shown in fig. 1 to 4, the range hood of the present embodiment includes a filtering membrane 1 for purifying oil smoke, a body 2, an air inlet 3 provided on the body 2, an oil net 4 provided at the air inlet 3, a fixing base 5, and a protective bracket 6. Specifically, the protective bracket 6 is disposed closest to the air intake 3; the filtering membrane 1 is arranged between the fixed seat 5 and the protective bracket 6 to form a protective shield for protecting the filtering membrane 1 from being damaged by external force; the oil net 4 is connected to one side of the fixing seat 5, which is away from the filtering membrane 1. Therefore, the oil net 4 is used as a first adsorption purification layer to preferentially adsorb grease particles with the particle diameter larger than 0.5mm, so that the effect of primarily purifying tobacco tar is achieved, the load of the filter membrane 1 is reduced, and the service life of the filter membrane 1 is longer; meanwhile, the filter membrane 1 is used as a second purifying layer, can adsorb grease particle micro-clusters with the particle size smaller than 0.5mm and adsorb harmful gas in oil smoke, and further separate grease. The double pipes are arranged at the same time, so that the effect of purifying the oil smoke is greatly enhanced, the runners such as the wind wheel spiral case and the like are protected from being adhered by grease, the service life of the range hood is prolonged, the smoke is prevented from being blocked, the emission of harmful substances is reduced, and the physical and mental health of a user is protected.

As shown in fig. 1-2 and 5, two ends of the filtering membrane 1 are respectively provided with a first fixing shaft 11 and a second fixing shaft 12, and the filtering membrane 1 can be fixed on the machine body 2 and cover the air inlet 3 through the first fixing shaft 11 and the second fixing shaft 12.

Further, one end of the filtering membrane 1 is wound around the first fixed shaft 11 and rotated into a roll. The middle section of the first fixing shaft 11 is sleeved with a first storage device 13 for storing the filtering membrane 1 which is not used and rotates to form a winding drum, and the first fixing shaft 11 protrudes from the upper end and the lower end of the first storage device 13 so as to facilitate the taking out of the first fixing shaft 11 or the placing of the first fixing shaft 11 wound with the filtering membrane 1 which is wound into the winding drum into the first storage device 13, and simultaneously plays a role in preventing the filtering membrane 1 from being polluted.

Preferably, the side wall of the first storage device 13 is provided with a first opening 130 through which the filtering membrane 1 can pass, and the filtering membrane 1 arranged in the first storage device 13 can pass through the first opening 130 and be connected with the second fixed shaft 12 after passing through the air inlet 3. From this, the filtration membrane 1 of lapping setting in first storage device 13 can follow first opening 130 activity and wear out, and its change mode easy operation of taking out, swift, automatic high, labour saving and time saving has reduced the change frequency of filtration membrane 1.

Further, a second storage device 14 for receiving the filter membrane 1 with the service life expired is sleeved at the middle section of the second fixing shaft 12, and the second fixing shaft 12 protrudes from the upper end and the lower end of the second storage device 14. Specifically, the side wall of the second storage device 14 is provided with a second opening 140 through which the filtering membrane 1 is movably passed, and the other end of the filtering membrane 1 penetrates the second opening 140 and is rotatably wound on the second fixed shaft 12. Therefore, when more grease is adhered to the filtering membrane 1, the filtering membrane 1 with oil stain adhered thereon can be uniformly rotated into a cylinder to be collected in the second storage device 14, so that the collected filtering membrane 1 can be taken out and cleaned at one time; the filtering membrane 1 can be synchronously and automatically replaced when the filtering membrane 1 is collected, so that time and labor are saved.

Preferably, the filtering membrane 1 is made of an oleophilic material, which can be activated carbon fiber, nano graphene or nano fullerene. The filter membrane 1 is provided with the characteristics of easy ventilation and strong adsorption capacity, becomes a second filter layer, and adsorbs harmful gases and grease so as to achieve the aim of secondarily purifying the flue gas.

As shown in fig. 1 and 6, the machine body 2 is provided with accommodating cavities 21 at two opposite sides of the air inlet 3, the accommodating cavities 21 are suitable for installing the first storage device 13 and the second storage device 14, and two ends of the accommodating cavities 21 are provided with mounting holes 22 extending outwards, and the mounting holes 22 are matched with the first fixing shaft 11 and/or the second fixing shaft 12; the side wall of the accommodating cavity 21 is provided with a channel 23 which faces the air inlet 3 and is used for the filter membrane 1 to pass through.

Specifically, the accommodating cavity 21 in this embodiment is disposed on the left and right sides of the air inlet 3, and the mounting holes 22 are disposed at the upper and lower ends of the accommodating cavity 21, so that the air inlet and the adsorption area closest to the cooking range are enlarged, the effect of smoke collection is enhanced, the smoke is timely adsorbed and purified, the runners such as the wind wheel volute are protected from being adhered by grease, and the user is protected from being affected by the smoke.

In other embodiments, the accommodating chambers 21 may be disposed on both upper and lower sides of the air inlet 3.

As shown in fig. 1, 3-4 and 7, the periphery of the fixing frame 5 is formed with a flange extending toward the oil screen 4, the upper flange 51 of the fixing frame 5 is provided with a plurality of notches 511 and a plurality of flanges 512 extending upward, and the lower flange 52 of the fixing frame 5 is also provided with a plurality of flanges 512 extending upward.

Further, the flanges 512 of the upper flange 51 are staggered with the notches 511, and the flanges 512 of the lower flange 52 correspond to the positions of the flanges 512 of the upper flange 51. In the present embodiment, the number of the fixing frames 5 is preferably two, and the number of the flanges 512 of the upper flange 51 and the lower flange 52 of each fixing frame 5 is two, and the number of the notches 511 of the upper flange 51 is one. In this way, a stable and reliable assembly of the oil screen 4 on the holder 5 is ensured.

The top of the oil screen 4 is provided with upward convex blocks 401 and downward grooves 402, the convex blocks 401 correspond to the notches 511 in position and number, and the grooves 402 correspond to the flanges 512 of the upper flanging 51 one by one in position and number; the bottom of the oil screen 4 is provided with upwardly facing depressions 403, which depressions 403 correspond in position and number to the flanges 512 of the turndown 52. During installation, the convex blocks 401 of the oil screen 4 are embedded into the gaps 511 of the fixing frame 5, and the grooves 402 and the pits 403 of the oil screen 4 are embedded by the flanges 512 of the fixing frame 5, so that the connection between the oil screen 4 and the fixing frame 5 is more stable.

When in installation, the protective bracket 6 is placed at the air inlet 3; first, embedding a first storage device 13 which stores a filtering membrane which is not used and rotates to form a winding drum into one accommodating cavity 21, enabling a first fixed shaft 11 to be clamped and fixed with an installing hole 22, embedding a second storage device 14 into the other accommodating cavity 21, and enabling a second fixed shaft 12 to be clamped and fixed with the installing hole 22; one end of the filtering membrane 1 is penetrated out from the first opening 130 of the first storage device 13 and the channel 23 of the accommodating cavity 21, traverses the air inlet 3, movably penetrates into the channel 23 of the other accommodating cavity 21 and the second opening 140, and is rotationally and windingly connected with the second fixed shaft 12 arranged in the second storage device 14.

It can be seen that, according to the range hood provided by the embodiment, the filtering membrane 1 is arranged in a winding drum, and when the filtering membrane 1 adhered with oil stains is rotated to be collected in a drum, the filtering membrane 1 is automatically replaced, the replacing operation of the filtering membrane 1 is simple and quick, time and labor are saved, grease and harmful gas can be effectively adsorbed, the oil fume is secondarily purified, and the oil fume purifying effect is improved.

When the whole roll of the filter membrane 1 which is not used yet is used, the filter membrane 1 which is stained with grease can be uniformly taken out and replaced by a new filter membrane 1 winding drum, so that the purposes of reducing the replacement frequency of the filter membrane 1 and facilitating the later cleaning are achieved.

Example 2

A range hood of the present embodiment differs from embodiment 1 only in that the other end of the filtering membrane 1 is detachably connected to the second fixing shaft 12. While the second storage device 14 is not sleeved in the middle of the second fixing shaft 12. Therefore, the filtering membrane 1 with the service life being expired, i.e. the filtering membrane 1 which is used and is full of oil stains is not uniformly rotated into a cylinder for collection or recovery in the embodiment. When the filtering membrane 1 is replaced, the filtering membrane 1 adhered with oil stains can be removed, and in the process, the replacement of the filtering membrane 1 is synchronously completed, so that time and labor are saved. The rest is the same as in example 1 and thus will not be described in detail, specifically and clearly.

Example 3

A range hood of the present embodiment differs from embodiment 1 only in that one end of the whole unused filtering membrane 1 is detachably connected to the first fixing shaft 11. The first storage device 13 is not sleeved in the middle of the first fixed shaft 11. Thus, the filtering membrane 1 in this embodiment is used to be fully attached with oil stains, and then is rotated into a cylinder to be collected or recovered for later cleaning. In the collecting process, the whole filtering membrane 1 is removed, and another filtering membrane 1 which is not used is replaced. The replacement and use modes are relatively complicated, but the replacement and use modes are simple and reliable, and the manufacturing cost is low. The rest is the same as in example 1 and thus will not be described in detail, specifically and clearly.

Example 4

A range hood of the present embodiment differs from embodiment 1 only in that one end of the whole unused filtering membrane 1 is detachably connected to the first fixed shaft 11 and the other end is detachably connected to the second fixed shaft 12. Thus, the filtering membrane 1 in this embodiment is used to attach oil stains, and then is directly removed and replaced with another unused filtering membrane 1. The replacement mode has simple structure and simplified manufacturing process, thereby greatly reducing the manufacturing cost. The rest is the same as in example 1 and thus will not be described in detail, specifically and clearly.

The foregoing are merely some embodiments of the invention. It will be apparent to those skilled in the art that various modifications and improvements can be made without departing from the spirit of the invention.

Claims

1. The utility model provides a range hood, includes organism (2), sets up air intake (3) on organism (2), and set up oil net (4) of air intake (3) department, its characterized in that still includes:

The oil screen filter comprises a filter membrane (1) for purifying oil smoke, wherein a first fixed shaft (11) and a second fixed shaft (12) are respectively arranged at two ends of the filter membrane (1), the filter membrane (1) is arranged at one side of an oil screen (4) close to an air inlet (3) and is fixed on a machine body (2) through the first fixed shaft (11) and the second fixed shaft (12), and the filter membrane (1) is made of an oleophilic material;

With mount (5) that oil net (4) are connected, mount (5) set up oil net (4) with between filtration membrane (1), the periphery of mount (5) is formed with the orientation oil net (4) direction extension turn-ups, last turn-ups (51) and lower turn-ups (52) of mount (5) are equipped with a plurality of flange (512) that extend up respectively, the top of oil net (4) is equipped with recess (402) down, recess (402) with the position and the quantity one-to-one of flange (512) of going up turn-ups (51), the bottom of oil net (4) is equipped with up pit (403), pit (403) with the position and the quantity of flange (512) of lower turn-ups (52) correspond.

2. A range hood according to claim 1, wherein one end of the filter membrane (1) is detachably connected to the first stationary shaft (11) and the other end is detachably connected to the second stationary shaft (12).

3. A range hood according to claim 1, wherein one end of the filter membrane (1) is detachably connected to the first fixed shaft (11) and the other end is rotatably wound around the second fixed shaft (12),

The middle section of the second fixed shaft (12) is sleeved with a second storage device (14) for receiving the filter membrane (1) with the service life reaching the end, and a second opening (140) for the filter membrane (1) to movably pass through is formed in the side wall of the second storage device (14).

4. A range hood according to claim 1, wherein one end of the filter membrane (1) is wound around the first fixed shaft (11) and rotated into a roll, the other end is detachably connected to the second fixed shaft (12),

The middle section of the first fixed shaft (11) is sleeved with a first storage device (13) for storing the filtering membrane (1) which is not used yet and rotates to form a winding drum, and a first opening (130) through which the filtering membrane (1) movably passes is formed in the side wall of the first storage device (13).

5. A range hood according to claim 1, wherein one end of the filter membrane (1) is wound around the first fixed shaft (11) and rotated into a roll, the other end is rotatably wound around the second fixed shaft (12),

The middle section of the first fixed shaft (11) is sleeved with a first storage device (13) for storing the filtering membrane (1) which is not used and rotates to form a winding drum, the side wall of the first storage device (13) is provided with a first opening (130) for the filtering membrane (1) to movably pass through,

6. A range hood according to claim 1, wherein the upper flange (51) of the fixing frame (5) is provided with a plurality of notches (511), the top of the oil screen (4) is provided with upward protruding blocks (401), and the protruding blocks (401) correspond to the notches (511) in position and number.

7. A range hood according to claim 1 or 6, further comprising a protective support (6), said protective support (6) being arranged between said filter membrane (1) and said air inlet (3).

8. A range hood according to claim 1, wherein the body (2) is provided with accommodating cavities (21) at opposite sides of the air inlet (3), mounting holes (22) extending outwards are provided at two ends of the accommodating cavities (21), the mounting holes (22) are respectively matched with the first fixing shaft (11) and the second fixing shaft (12), and a channel (23) facing the direction of the air inlet (3) and allowing the filtering membrane (1) to pass through is provided at the side wall of the mounting holes.

9. A range hood according to claim 1, wherein the filter membrane (1) is any one of activated carbon fibers, nano-graphene or nano-fullerene.