CN114060879B

CN114060879B - Fume exhaust fan

Info

Publication number: CN114060879B
Application number: CN202010789705.1A
Authority: CN
Inventors: 谭柏豪; 杨一川; 马世涛; 孙培原; 蒋济武
Original assignee: Foshan Shunde Midea Washing Appliances Manufacturing Co Ltd
Current assignee: Foshan Shunde Midea Washing Appliances Manufacturing Co Ltd
Priority date: 2020-08-07
Filing date: 2020-08-07
Publication date: 2023-07-18
Anticipated expiration: 2040-08-07
Also published as: CN114060879A

Abstract

The embodiment of the invention provides a range hood, which comprises: the shell, the inferior part of the shell is constructed to have air intake; the fixed plate is arranged below the air inlet, and a first air channel is formed between the fixed plate and the shell; at least one movable plate component positioned at the side of the fixed plate; the driving assembly is fixedly arranged on the shell, part of the driving assembly is fixedly connected with the at least one movable plate assembly, and the driving assembly can drive the at least one movable plate assembly to move relative to the fixed plate, so that a second air channel is formed between the at least one movable plate assembly and the fixed plate or is closed, a plurality of air inlet channels can be formed, and air flow can enter the range hood through the air inlet channels, so that the purpose of quickly pumping and exhausting oil smoke is achieved. And when the cooking or oil fume is large, the second air duct is opened, so that the oil fume or air flow can quickly enter the range hood from a plurality of air inlet channels, and the oil fume is prevented from overflowing.

Description

Fume exhaust fan

Technical Field

The embodiment of the invention relates to the technical field of kitchen cookers, in particular to a range hood.

Background

The condensing plate is arranged below the air inlet, the surface area of the condensing plate is larger than the area of the air inlet, so that oil and water which drop downwards from the inside of the smoke ventilator are effectively blocked, and in the smoking process, the negative pressure area at the bottom of the smoke ventilator is expanded outwards due to the large area of the condensing plate, the smoking capacity around the smoke ventilator is enhanced, and the oil smoke is prevented from overflowing. In addition, in the cooking process, the oil fume is firstly contacted with the condensing plate in the rising process, so that the oil fume is more easily intercepted by the filter screen after being condensed by the condensing plate.

In order to improve the smoking effect of a conventional European style smoke machine, at present, a channel with a fixed width is formed around a condensing plate and a smoke machine guide plate for airflow.

The condensing plate is fixed in size, so that a channel between the condensing plate and the guide plate is fixed, and even air flows enter the fan when the smoke machine is started, namely, the periphery of the channel. However, when cooking fume is generated on one side of the cooking bench, most of the fume only enters the range hood from a single-side channel, and the fume cannot be quickly sucked away from the single-side channel of the fixed channel due to uniform airflow.

Disclosure of Invention

Embodiments of the present invention aim to solve at least one of the technical problems existing in the prior art.

To this end, a first aspect of an embodiment of the present invention provides a range hood.

In view of the above, according to a first aspect of embodiments of the present invention, there is provided a range hood comprising: the shell, the inferior part of the shell is constructed to have air intake; the fixed plate is arranged below the air inlet, and a first air channel is formed between the fixed plate and the shell; at least one movable plate component positioned at the side of the fixed plate; the driving assembly is fixedly arranged on the shell, part of the driving assembly is fixedly connected with the at least one movable plate assembly, and the driving assembly can drive the at least one movable plate assembly to move relative to the fixed plate so as to enable a second air channel to be formed between the at least one movable plate assembly and the fixed plate or close the second air channel.

The range hood provided by the embodiment of the invention comprises a shell, a fixed plate, at least one movable plate component and a driving component, wherein the lower part of the shell is provided with an air inlet, air flow enters the range hood through the air inlet, the fixed plate is positioned below the air inlet and forms a first air channel with the shell, the at least one movable plate component is positioned at the side of the fixed plate, and the driving component drives the at least one movable plate component to move relative to the fixed plate, so that a second air channel can be formed between the at least one movable plate component and the fixed plate or the second air channel can be closed. That is, the driving component drives the at least one movable plate component to move, so that a plurality of air inlet channels are formed between the at least one movable plate component and the shell and between the at least one movable plate component and the fixed plate, and air flow can enter the range hood through the air inlet channels, thereby achieving the purpose of quickly exhausting the oil smoke. And when the cooking or oil fume is large, the second air duct is opened, so that the oil fume or air flow can quickly enter the range hood from a plurality of air inlet channels, and the oil fume is prevented from overflowing.

In addition, the second air duct can be opened or closed relative to the fixed plate through the at least one movable plate assembly, so that a plurality of air inlet channels are formed, and the problem that the whole smoke ventilator structure is increased and the production cost of the smoke ventilator is increased due to the fact that the whole condensing plate structure is lifted to enlarge the air inlet channels to quickly smoke in the related art can be avoided.

In addition, the range hood provided by the technical scheme of the invention has the following additional technical characteristics:

in one possible design, at least one of the movable plate assemblies has a plurality of working positions, and the angle formed by the at least one movable plate assembly in different working positions and the plane of the fixed plate is unequal.

In the design, in the process of driving at least one movable plate assembly to move by the driving assembly, different angles can be formed between the plane where different working positions are located of at least one movable plate assembly and the plane where the fixed plate is located, so that the second air duct has different ventilation areas, and the air inlet area of the second air duct can be adjusted according to the oil smoke.

In one possible design, the range hood further comprises: the first filter screen is arranged at the air inlet; the second filter screen is positioned between the first filter screen and the fixed plate, at least one movable plate component moves to a working position, and the second filter screen can be exposed out of a second air channel formed between the at least one movable plate component and the fixed plate.

In this design, the range hood still includes first filter screen and second filter screen, wherein, first filter screen is located air intake department, and fixed mounting is on the casing, be equipped with the second filter screen between first filter screen and fixed plate, when the at least one fly leaf subassembly of drive assembly drive moves in order to open the second wind channel for the fixed plate, oil smoke or air current can get into the second wind channel, first filter screen of passing first, then get into the range hood inside at last, thereby form double filtration, and then when oil smoke or air current are great, drive at least one fly leaf subassembly forms the second wind channel for the fixed plate, thereby carry out secondary filtration to oil smoke or air current, guarantee the filter effect when oil smoke or air current are great, and then promote the grease separation degree of whole range hood.

In one possible design, a second screen is connected to the at least one flap assembly, the second screen being capable of moving closer to or farther from the first screen with movement of the at least one flap assembly.

In the design, the driving component drives the at least one movable plate component to move so as to drive the second filter screen to be close to or far away from the first filter screen, that is, the at least one movable plate component can drive the second filter screen to move up and down in the process of moving at a plurality of working positions. Specifically, the second filter screen follows the at least one movable plate assembly to move upward to be close to the first filter screen when the at least one movable plate assembly moves relative to the fixed plate to open the second air duct, and the second filter screen follows the at least one movable plate assembly to move downward to be away from the first filter screen when the second air duct moves from the open position to the closed position. When the oil smoke or the air flow is smaller, the second air channel is closed, namely, at least one movable plate component and the fixed plate are on the same plane, most of the oil smoke or the air flow enters the range hood through the first filter screen, when the oil smoke or the air flow is larger, the at least one movable plate component moves relative to the fixed plate to open the second air channel, the second filter screen moves upwards along with the at least one movable plate component to be close to the first filter screen, and the oil smoke or the air flow enters the range hood through the second filter screen and then through the first filter screen, so that double filtration is realized. Through the portable design of second filter screen, can filter according to the needs of oil smoke or air current size to guarantee the filter effect when oil smoke concentration is great, so that oil smoke or air current obtain effective filtration.

In one possible design, the filter openings in the first filter screen are staggered in the up-down direction with the filter openings in the second filter screen.

In this design, the filtration pore of first filter screen and second filter screen is crisscross to be set up from top to bottom, and first filter screen and second filter screen's grid is crisscross each other promptly, and when oil smoke or air current were great, the second wind channel was opened, and oil smoke or air current can be fast when getting into range hood inside from a plurality of air inlet channels, and first filter screen and the second filter screen that the crisscross mutual crisscross setting of grid can also carry out dual filtration to oil smoke or air current, guarantees the filter effect, and then promotes the grease separation degree of whole range hood.

In one possible design, at least one fly leaf assembly comprises: a movable plate; the mounting seat is arranged on the movable plate; the filter screen mounting piece is arranged on the mounting seat and is connected with the second filter screen.

In this design, at least one fly leaf subassembly includes fly leaf, mount pad and filter screen mounting, and wherein, the mount pad is fixed to be located on the fly leaf, and the second filter screen is connected with the mount pad through the filter screen mounting, realizes that the second filter screen is connected with at least one fly leaf subassembly, and then when the at least one fly leaf subassembly of drive assembly drive moves to working position, at least one fly leaf subassembly can drive the second filter screen to the direction removal of first filter screen.

In one possible design, the at least one movable plate assembly comprises a first movable plate assembly and a second movable plate assembly, which are respectively positioned at two opposite sides of the fixed plate; the driving component can drive the first movable plate component and the second movable plate component to synchronously move.

In this design, at least one fly leaf subassembly is including the first fly leaf subassembly and the second fly leaf subassembly that are located the fixed plate both sides respectively, that is to say, first fly leaf subassembly and second fly leaf subassembly are located the left and right sides of fixed plate respectively, wherein, drive assembly can drive first fly leaf subassembly and second fly leaf subassembly and carry out synchronous motion to make between first fly leaf subassembly and the fixed plate, between second fly leaf subassembly and the fixed plate, between first fly leaf subassembly and the casing and between second fly leaf subassembly and the casing form a plurality of air inlet passageway, in order to reach the purpose of quick oil smoke of taking out.

In one possible design, the drive assembly includes: the driving device is arranged on the shell; the connecting beam is connected with the driving device and can reciprocate along the up-down direction under the driving of the driving device; the two transmission components are respectively positioned at two ends of the connecting beam and are movably connected with the connecting beam, the two transmission components are respectively fixedly connected with the first movable plate component and the second movable plate component, the two transmission components can rotate under the drive of the connecting beam, and the two transmission components can drive the first movable plate component and the second movable plate component to move so as to open or close the second air duct.

In this design, drive assembly includes drive arrangement, tie-beam and two drive assembly, wherein, the tie-beam is connected with drive arrangement, and can reciprocate under drive arrangement's drive, two drive assembly's one end respectively with the both ends swing joint of tie-beam, two drive assembly's the other end respectively with first fly leaf subassembly and second fly leaf subassembly fixed connection, and then drive arrangement drive tie-beam reciprocates, two drive assembly rotations are driven at the both ends of tie-beam, simultaneously, two drive assembly drive first fly leaf subassembly and second fly leaf subassembly motion, thereby make the second wind channel open or close, realize drive arrangement drive linkage in order to form a plurality of air inlet channels of activity variability, make oil smoke or air current can get into the lampblack absorber inside fast, prevent that the oil smoke from overflowing.

In one possible design, the drive and the connecting beam are arranged remote from the air inlet.

In this design, drive arrangement and tie beam keep away from the air intake setting, and drive arrangement and tie beam set up the rear end at the casing, because the main air intake of the fan system of range hood is in the front side, the casing rear side advances cigarette relatively less to can effectively reduce oil smoke pollution drive arrangement.

In one possible design, the transmission assembly includes: the transmission rod is movably connected with the connecting beam; and the rotating assembly is fixedly connected with the transmission rod, and is fixedly connected with the mounting seat of the first movable plate assembly or the mounting seat of the second movable plate assembly.

In this design, drive assembly includes transfer line and rotation subassembly, and wherein, the one end and the tie-beam swing joint of transfer line, the other end and the rotation subassembly fixed connection of transfer line, and then reciprocates through the tie-beam, gives rotation subassembly with power through the transfer line for rotation subassembly can rotate, thereby drives first fly leaf subassembly or second fly leaf subassembly motion in order to open or close the second wind channel.

In one possible design, the rotating assembly includes: the support piece is fixedly connected with the transmission rod; the rotating rod assemblies are two groups, are respectively arranged at two ends of the supporting piece and are movably connected with the supporting piece; the rotating rod assembly comprises at least one rotating rod, and the at least one rotating rod is fixedly connected with the mounting seat of the first movable plate assembly or the mounting seat of the second movable plate assembly.

In this design, the rotating assembly includes support piece and two sets of dwang subassemblies, and wherein, the dwang subassembly includes at least one dwang, and the one end and the support piece swing joint of at least one dwang, the other end and the first fly leaf subassembly or the second fly leaf subassembly fixed connection of at least one dwang, and two sets of dwang subassemblies correspond the both ends of locating support piece. Through the arrangement, the driving device drives the connecting beam to move up and down, the connecting beam drives the transmission rod to rotate, the transmission rod drives the two groups of rotation rod assemblies to rotate, and the last two groups of rotation rod assemblies drive the first movable plate assembly or the second movable plate assembly to rotate relative to the fixed plate so as to open or close the second air channel, so that the transmission process that the driving assembly drives the first movable plate assembly and the second movable plate assembly is realized.

In one possible design, the housing includes: the top plate is provided with an air inlet; dodge the opening, dodge the opening and set up on the roof, the dwang subassembly passes and dodges the mount pad of opening and first fly leaf subassembly or the mount pad fixed connection of second fly leaf subassembly.

In this design, the casing includes the roof and locates the opening of dodging on the roof, and the dwang subassembly can pass dodging the opening and carry out fixed connection with the mount pad of first fly leaf subassembly or second fly leaf subassembly to can prevent effectively that the dwang subassembly from interfering with the casing in first fly leaf subassembly or the cooperation of second fly leaf subassembly drive transmission's in-process, and lead to casing and dwang subassembly long-term wearing and tearing, reduce user's use experience.

Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.

Drawings

The foregoing and/or additional aspects and advantages of the invention will become apparent and may be better understood from the following description of embodiments taken in conjunction with the accompanying drawings in which:

fig. 1 illustrates a schematic structure of a range hood according to an embodiment of the present invention;

Fig. 2 is a schematic view showing a structure of a range hood when a second duct is closed according to an embodiment of the present invention;

fig. 3 is a schematic view showing a structure of a range hood according to another embodiment of the present invention;

fig. 4 is a schematic view showing a structure of a range hood according to an embodiment of the present invention when the second duct is opened;

fig. 5 illustrates a schematic structure of a range hood according to still another embodiment of the present invention;

fig. 6 shows a schematic structural view of a range hood according to still another embodiment of the present invention;

fig. 7 is a schematic view showing a structure of a range hood according to still another embodiment of the present invention;

fig. 8 shows a schematic structural view of a range hood according to still another embodiment of the present invention;

FIG. 9 shows a schematic view of a first screen according to one embodiment of the invention;

FIG. 10 shows a schematic diagram of a second screen according to one embodiment of the invention;

fig. 11 shows an exploded view of a range hood according to an embodiment of the present invention.

The correspondence between the reference numerals and the component names in fig. 1 to 11 is:

1 a shell, 2 a fixed plate, 3 at least one movable plate assembly, 4 a driving assembly, 5 a first filter screen, 6 a second filter screen, 7 a first movable plate assembly, 8 a second movable plate assembly, 30 a movable plate, 32 a mounting seat, 34 a filter screen mounting piece, 40 a driving device, 42 a connecting beam, 44 a transmission assembly, 440 a transmission rod, 442 a rotating assembly, 4420 a supporting piece, 4422 a rotating rod, 10 a top plate, 100 a avoidance opening, 9 a first air duct and 11 a second air duct.

Detailed Description

In order that the above-recited objects, features and advantages of the present invention will be more clearly understood, a more particular description of the invention will be rendered by reference to the appended drawings and appended detailed description. It should be noted that, in the case of no conflict, the embodiments of the present application and the features in the embodiments may be combined with each other.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced otherwise than as described herein, and therefore the scope of the present invention is not limited to the specific embodiments disclosed below.

A range hood provided according to some embodiments of the present invention is described below with reference to fig. 1 to 11.

Embodiment one:

as shown in fig. 1 and 2, an embodiment of the first aspect of the present invention provides a range hood, including a housing 1, a fixed plate 2, at least one movable plate assembly 3, and a driving assembly 4, wherein the lower portion of the housing 1 is configured to have an air inlet, the fixed plate 2 is located below the air inlet, a first air duct 9 is formed between the fixed plate 2 and the housing 1, the at least one movable plate assembly 3 is located at a side of the fixed plate 2, the driving assembly 4 is fixedly mounted on the housing 1, and the driving assembly 4 is fixedly connected with the at least one movable plate assembly 3, and the driving assembly 4 can drive the at least one movable plate assembly 3 to move relative to the fixed plate 2, so that a second air duct 11 is formed between the at least one movable plate assembly 3 and the fixed plate 2 or the second air duct 11 is closed.

The range hood provided by the embodiment of the invention comprises a shell 1, a fixed plate 2, at least one movable plate component 3 and a driving component 4, wherein the lower part of the shell 1 is provided with an air inlet, air flow enters the range hood through the air inlet, the fixed plate 2 is positioned below the air inlet and forms a first air channel 9 with the shell 1, the at least one movable plate component 3 is positioned at the side of the fixed plate 2, and the driving component 4 drives the at least one movable plate component 3 to move relative to the fixed plate 2, so that a second air channel 11 can be formed between the at least one movable plate component 3 and the fixed plate 2 or the second air channel 11 can be closed. That is, the driving component 4 drives the at least one movable plate component 3 to move, so that a plurality of air inlet channels are formed between the at least one movable plate component 3 and the shell 1 and between the at least one movable plate component 3 and the fixed plate 2, and air flow can enter the range hood through the air inlet channels, so that the aim of quickly exhausting oil smoke is fulfilled. And then can be when cooking or oil smoke are great, through opening second wind channel 11 for oil smoke or air current can get into the range hood inside from a plurality of air inlet channels fast, prevent that the oil smoke from overflowing.

In addition, the second air duct 11 can be opened or closed relative to the fixed plate 2 through at least one movable plate component 3, so that a plurality of air inlet channels are formed, and the problem that the whole smoke machine structure is enlarged and the production cost of the smoke machine is increased due to the fact that the whole condensing plate structure is lifted to enlarge the air inlet channels to quickly smoke in the related art can be avoided.

It should be noted that, at least one movable plate component 3 and the fixed plate 2 together form a condensation plate structure, when the oil fume generated by the jambs at two sides is small in the cooking process, the second air duct 11 is closed, that is, at least one movable plate component 3 and the fixed plate 2 are in the same plane, at least one movable plate component 3 and the fixed plate 2 are equivalent to form an integrated condensation plate structure, an air flow channel is formed between the integrated condensation plate structure and the shell 1, and the oil fume or air flow enters the inside of the range hood through the air flow channel. When the cooking or the oil smoke is large, the driving component 4 drives the at least one movable plate component 3 to open the second air duct 11, so that a plurality of air inlet channels are formed between the at least one movable plate component 3 and the shell 1 and between the at least one movable plate component 3 and the fixed plate 2, and the air inlet channels for the oil smoke or the air flow are increased, so that the oil smoke or the air flow can quickly enter the range hood through the plurality of air inlet channels, and then the oil smoke or the air flow is quickly sucked away.

It should be noted that, the range hood further includes at least one connecting piece, the fixed plate 2 is fixedly connected with the casing 1 through at least one connecting piece, wherein, the quantity of at least one connecting piece is four, the one end of four connecting pieces respectively with fixed plate 2 around fixed connection, the other end of four connecting pieces respectively with casing 1 fixed connection, through setting up connecting piece and casing 1 around fixed plate 2 and carrying out fixed connection, can effectively guarantee the connection stability between fixed plate 2 and the casing 1, prevent because of fixed plate 2 is not firm with casing 1 connection and the safety problem that the fixed plate 2 took place to drop and cause at the culinary art in-process. Wherein, can set up into inside hollow structure with at least one connecting piece to can save materials on the basis of guaranteeing fixed plate 2 and casing 1 joint strength, and then can reduce the manufacturing cost of range hood.

Further, the casing 1 includes the guide plate, the guide plate encloses the below of establishing at the air intake for oil smoke or air current are led, when second wind channel 11 is opened, form a plurality of air inlet channel between guide plate and at least one fly leaf subassembly 3, and then can make oil smoke or air current great time, can get into the cigarette machine inside through a plurality of air inlet channel fast, guarantee the oil smoke absorption effect, wherein, the guide plate can be with casing 1 integrated into one piece, integrated into one piece structural mechanical properties is good, and be convenient for production and processing, also do benefit to the batch and produce.

Embodiment two:

further, on the basis of the above embodiment, the at least one movable plate assembly 3 has a plurality of working positions in the process of being driven by the driving assembly 4, and the plane in which the at least one movable plate assembly 3 is located when in the different working positions is not equal to the angle formed by the plane in which the fixed plate 2 is located.

In this embodiment, in the process that the driving assembly 4 drives the at least one movable plate assembly 3 to move, the plane where the at least one movable plate assembly 3 is located at different working positions and the plane where the fixed plate 2 is located can form different angles, so that the second air duct 11 has different ventilation areas, and further the air inlet area of the second air duct 11 can be adjusted according to the oil smoke size, and the user experience is enhanced.

It should be noted that, the plurality of working positions of the at least one movable plate assembly 3 include a limit position, that is, a limit position where the at least one movable plate assembly 3 moves relative to the fixed plate 2, and when the at least one movable plate assembly 3 is at the limit position, the ventilation area of the second air duct 11 is the largest, that is, when the oil smoke or the air flow is large, the at least one movable plate assembly 3 can be driven to move relative to the fixed plate 2 to the limit position, so that the oil smoke or the air flow can quickly enter the range hood through the second air duct 11 and other channels, and the oil smoke is prevented from overflowing.

It should be further noted that, one side of the at least one movable plate assembly 3, which is close to the fixed plate 2, is turned upwards under the driving of the driving assembly 4 to form the second air duct 11, so that the inclination direction of the at least one movable plate assembly 3 is consistent with that of the guide plate of the casing 1, and thus, the fume or air flow can quickly enter the fume exhaust fan through a plurality of air inlet channels, and the fume exhaust effect when the fume is large is further ensured. The structure of the fixing plate 2 may be a quadrilateral structure, and four connecting pieces are located at four installation corners of the fixing plate 2.

Embodiment III:

on the basis of any of the above embodiments, as shown in fig. 4, 5, 7 and 8, the range hood further includes a first filter screen 5 and a second filter screen 6, where the first filter screen 5 is disposed at the air inlet, the second filter screen 6 is located between the first filter screen 5 and the fixed plate 2, and when at least one movable plate assembly 3 moves to the working position, the second filter screen 6 can be exposed to a second air duct 11 formed between the at least one movable plate assembly 3 and the fixed plate 2.

In this embodiment, the range hood further comprises a first filter screen 5 and a second filter screen 6, wherein the first filter screen 5 is located at the air inlet and fixedly mounted on the housing 1, and the second filter screen 6 is arranged between the first filter screen 5 and the fixing plate 2. When the driving component 4 drives the at least one movable plate component 3 to move relative to the fixed plate 2 to open the second air channel 11, the oil smoke or air flow can enter the second air channel 11, firstly passes through the second filter screen 6 and then passes through the first filter screen 5, and finally enters the interior of the range hood, so that double filtration is formed, when the oil smoke or air flow is large, the at least one movable plate component 3 is driven to form the second air channel 11 relative to the fixed plate 2, so that secondary filtration is performed on the oil smoke or air flow, the filtering effect when the oil smoke or air flow is large is ensured, and the oil and fat separation degree of the whole range hood is further improved.

As shown in fig. 7 and 8, further, a second screen 6 is connected to the at least one flap assembly 3, the second screen 6 being able to follow the movement of the at least one flap assembly 3 towards or away from the first screen 5.

In this embodiment, the driving component 4 drives the at least one movable plate component 3 to move, so that the second filter screen 6 can be driven to approach or separate from the first filter screen 5, that is, the at least one movable plate component 3 can drive the second filter screen 6 to move up and down simultaneously in the process of moving at a plurality of working positions. Specifically, the second screen 6 follows the at least one movable plate assembly 3 to move upward to be close to the first screen 5 when the at least one movable plate assembly 3 moves relative to the fixed plate 2 to open the second duct 11, and the second screen 6 follows the at least one movable plate assembly 3 to move downward to be away from the first screen 5 when the second duct 11 moves from the open position to the closed position. When the oil smoke or the air flow is small, the second air duct 11 is closed, namely, at least one movable plate component 3 and the fixed plate 2 are on the same plane, most of the oil smoke or the air flow enters the interior of the range hood through the first filter screen 5, when the oil smoke or the air flow is large, at least one movable plate component 3 moves relative to the fixed plate 2 to open the second air duct 11, the second filter screen 6 moves upwards along with at least one movable plate component 3 to be close to the first filter screen 5, and the oil smoke or the air flow enters the interior of the range hood through the second filter screen 6 and then through the first filter screen 5, so that double filtration is realized. Through the removable design of second filter screen 6, can filter according to the needs of oil smoke or air current size to guarantee the filter effect when oil smoke concentration is great, so that oil smoke or air current obtain effective filtration.

It should be noted that, as shown in fig. 9 and fig. 10, the first filter screen 5 may be a single-layer filter screen, when the oil smoke or the air flow is smaller, the second air duct 11 is not opened, and most of the oil smoke or the air flow enters the interior of the range hood through the first filter screen 5, and the wind resistance can be effectively reduced by arranging the first filter screen 5 into a single-layer structure, so that the oil smoke or the air flow can quickly enter the interior of the range hood. The second filter screen 6 can be double-deck or multilayer structure, and when oil smoke or air current concentration are great, at least one fly leaf subassembly 3 upset under the drive of drive assembly 4, simultaneously, second filter screen 6 upwards moves in order to be close to first filter screen 5 under the drive of at least one fly leaf subassembly 3, and oil smoke or air current passes through second filter screen 6 earlier and passes through first filter screen 5 again, realizes dual filtration, improves the filter effect.

It should be noted that, when at least one movable plate assembly 3 is turned to the limit position, the distance between the second filter screen 6 and the first filter screen 5 is nearest, or when at least one movable plate assembly 3 is turned to the limit position, the second filter screen 6 just fits with the first filter screen 5, the distance between the second filter screen 6 and the first filter screen 5 after moving is not limited, and the second filter screen 6 can move towards being close to the first filter screen 5 under the driving of at least one movable plate assembly 3, so that double filtration of the second filter screen 6 and the first filter screen 5 is realized, which is within the protection scope of the application.

In a specific embodiment, the filtering holes of the first filtering net 5 and the second filtering net 6 are staggered in the up-down direction.

In this embodiment, the grids of the first filter screen 5 and the second filter screen 6 are staggered with each other, when the oil smoke or the air flow is large, the second air duct 11 is opened, and the oil smoke or the air flow can enter the range hood from a plurality of air inlet channels rapidly, and simultaneously, the oil smoke or the air flow can be effectively and doubly filtered through the first filter screen 5 and the second filter screen 6 which are staggered with each other by the grids, so that the filtering effect is fully ensured, and the oil and fat separation degree of the whole range hood is improved.

It should be noted that, the first filter screen 5 and the second filter screen 6 may be further configured to have other structures, and may be configured according to actual needs, so long as a filter screen structure capable of effectively performing double filtration on the oil smoke or the air flow is achieved.

Embodiment four:

on the basis of any of the above embodiments, the specific structure of at least one movable plate assembly 3 is defined, as shown in fig. 4, 7 and 8, further, at least one movable plate assembly 3 includes a movable plate 30, a mounting seat 32 and a filter screen mounting member 34, wherein the mounting seat 32 is disposed on the movable plate 30, the filter screen mounting member 34 is disposed on the mounting seat 32, and the filter screen mounting member 34 is connected with the second filter screen 6.

In this embodiment, the at least one movable plate assembly 3 includes a movable plate 30, a mounting seat 32 and a filter screen mounting member 34, wherein the mounting seat 32 is fixedly arranged on the movable plate 30, the second filter screen 6 is connected with the mounting seat 32 through the filter screen mounting member 34, so that the second filter screen 6 is connected with the at least one movable plate assembly 3, and when the driving assembly 4 drives the at least one movable plate assembly 3 to move to the working position, the at least one movable plate assembly 3 can drive the second filter screen 6 to move towards the first filter screen 5.

It should be noted that, the filter screen mounting member 34 may be a connecting member fixedly connected with the mounting seat 32 and having a connecting hole, the second filter screen 6 is provided with a mounting hole for being matched with the filter screen mounting member 34, the range hood further includes a mounting member, and the mounting member passes through the connecting hole and the mounting hole to connect the second filter screen 6 with the mounting seat 32, so as to connect the second filter screen 6 with the at least one movable plate assembly 3. It should be further noted that the filter screen mounting member 34 may be integrally formed with the mounting seat 32, so that the mechanical property of the integrally formed structure is better, and further, the connection strength between the at least one movable plate assembly 3 and the second filter screen 6 may be ensured.

In addition, a plurality of first threaded holes are formed in the movable plate 30, a plurality of second threaded holes corresponding to the first threaded holes one by one are formed in the mounting base 32, the range hood further comprises a plurality of fasteners, and the fasteners penetrate through the first threaded holes and the second threaded holes respectively to fixedly connect the movable plate 30 with the mounting base 32. Of course, the movable plate 30 and the mounting seat 32 may be fixedly connected by other connection methods, or the movable plate 30 and the mounting seat 32 may be integrally formed, so as to further ensure the connection strength of the movable plate 30 and the mounting seat 32.

Fifth embodiment:

on the basis of any of the above embodiments, the specific number of at least one movable plate assembly 3 is defined, as shown in fig. 1, 3 and 6, and further, at least one movable plate assembly 3 includes a first movable plate assembly 7 and a second movable plate assembly 8 respectively located at two sides of the fixed plate 2, wherein the driving assembly 4 can drive the first movable plate assembly 7 and the second movable plate assembly 8 to perform synchronous movement.

In this embodiment, the at least one movable plate assembly 3 includes a first movable plate assembly 7 and a second movable plate assembly 8 respectively located at two sides of the fixed plate 2, that is, the first movable plate assembly 7 and the second movable plate assembly 8 are respectively located at two left and right sides of the fixed plate 2, wherein the driving assembly 4 can drive the first movable plate assembly 7 and the second movable plate assembly 8 to perform synchronous movement, so that a plurality of air inlet channels are formed between the first movable plate assembly 7 and the fixed plate 2, between the second movable plate assembly 8 and the fixed plate 2, between the first movable plate assembly 7 and the housing 1, and between the second movable plate assembly 8 and the housing 1, so as to achieve the purpose of rapid oil smoke pumping and discharging.

It should be noted that, the mounting seat 32 on the first movable plate assembly 7 is close to one side of the fixed plate 2, two filter screen mounting pieces 34 are relatively arranged, the mounting seat 32 on the second movable plate assembly 8 is close to one side of the fixed plate 2, two filter screen mounting pieces 34 are relatively arranged, and four filter screen mounting pieces 34 are connected around the second filter screen 6, so that when the driving assembly 4 drives the first movable plate assembly 7 and the second movable plate assembly 8, the first movable plate assembly 7 and the second movable plate assembly 8 drive the second filter screen 6 to move towards the direction close to the first filter screen 5. It should be noted that, since the first movable plate assembly 7 and the second movable plate assembly 8 move synchronously, that is, the left side and the right side of the second filter screen 6 can be lifted or lowered simultaneously, the mechanism can be prevented from being blocked in the moving process.

Example six:

on the basis of any of the above embodiments, the specific structure of the driving assembly 4 is defined, as shown in fig. 5 to 8, further, the driving assembly 4 includes a driving device 40, a connecting beam 42 and two transmission assemblies 44, where the connecting beam 42 is connected with the driving device 40 and can move up and down under the driving of the driving device 40, one ends of the two transmission assemblies 44 are movably connected with two ends of the connecting beam 42, the other ends of the two transmission assemblies 44 are fixedly connected with the first movable plate assembly 7 and the second movable plate assembly 8, and the two transmission assemblies 44 rotate under the driving of the connecting beam 42, so that the first movable plate assembly 7 and the second movable plate assembly 8 can be driven to move to open or close the second air duct 11.

In this embodiment, the driving device 40 drives the connecting beam 42 to move up and down, two ends of the connecting beam 42 drive the two transmission components 44 to rotate, and meanwhile, the two transmission components 44 drive the first movable plate component 7 and the second movable plate component 8 to move, so that the second air duct 11 is opened or closed, and the driving device 40 drives linkage to form a plurality of air inlet channels with variable movement, so that oil smoke or air flow can quickly enter the range hood, and the oil smoke is prevented from overflowing.

It should be noted that, the driving device 40 adopts a single motor driving push rod motor, wherein the push rod is fixedly connected with the connecting beam 42, and the motor drives the push rod to enable the connecting beam 42 to move up and down, so as to drive the transmission assemblies 44 connected with two ends of the connecting beam 42, and realize that one motor drives two movable plate assemblies to perform synchronous movement, thereby reducing the production cost of the whole mechanism.

In addition, can also adopt two motors to drive respectively first fly leaf subassembly 7 and second fly leaf subassembly 8 for the user can select to drive first fly leaf subassembly 7 and/or second fly leaf subassembly 8 according to actual need to overturn, thereby increase the air inlet passageway, for example, to the kitchen utensils and appliances of two furnace ends, if the user adopts the unilateral furnace end to fry when dish, can only open the fly leaf subassembly that this furnace end corresponds and overturn in order to increase the air inlet passageway, the user can select in a flexible way according to actual need promptly, further strengthen user's use experience.

In a specific embodiment, as shown in fig. 5 and 6, further, the driving device 40 and the connecting beam 42 are disposed away from the air inlet.

In this embodiment, the driving device 40 and the connecting beam 42 are disposed at a position far away from the air inlet, and further, the driving device 40 and the connecting beam 42 may be disposed at the rear end of the housing 1, and since the main air inlet of the fan system of the range hood is at the front side, the smoke entering the rear side of the housing 1 is relatively less, so that the smoke pollution to the driving device 40 can be effectively reduced. Of course, the driving device 40 and the connecting beam 42 may be disposed at other positions of the housing 1, and the present application is not limited in particular, as long as the positions of the motor can be away from the air inlet to reduce the oil smoke pollution.

Embodiment seven:

on the basis of the above embodiment, the specific structure of the driving assembly 44 is defined, as shown in fig. 7 and 8, further, the driving assembly 44 includes a driving rod 440 and a rotating assembly 442, wherein one end of the driving rod 440 is movably connected with the connecting beam 42, and the other end of the driving rod 440 is fixedly connected with the rotating assembly 442, so that the driving rod 440 transfers power to the rotating assembly 442 through the up-and-down movement of the connecting beam 42, so that the rotating assembly 442 can rotate, thereby driving the first movable plate assembly 7 or the second movable plate assembly 8 to move to open or close the second air duct 11. The transmission structure is simple, the driving device 40 drives the connecting beam 42, the connecting beam 42 drives the transmission rod 440 to rotate, the transmission rod 440 drives the rotating assembly 442, the rotating assembly 442 further drives the first movable plate assembly 7 or the second movable plate assembly 8 to realize overturning, namely, the transmission process is effectively driven, and the effective operation of equipment is ensured.

Example eight:

on the basis of the above embodiment, the specific structure of the rotating assembly 442 is limited, as shown in fig. 7, 8 and 11, further, the rotating assembly 442 includes a supporting member 4420 and two sets of rotating rod assemblies, wherein the rotating rod assemblies include at least one rotating rod 4422, one end of the at least one rotating rod 4422 is movably connected with the supporting member 4420, the other end of the at least one rotating rod 4422 is fixedly connected with the first movable plate assembly 7 or the second movable plate assembly 8, and the two sets of rotating rod assemblies are correspondingly arranged at two ends of the supporting member 4420. Through the arrangement, the driving device 40 drives the connecting beam 42 to move up and down, the connecting beam 42 drives the transmission rod 440 to rotate, the transmission rod 440 drives the two groups of rotation rod assemblies to rotate, and the last two groups of rotation rod assemblies drive the first movable plate assembly 7 or the second movable plate assembly 8 to rotate relative to the fixed plate 2 so as to open or close the second air duct 11, so that the transmission process that the driving assembly 4 drives the first movable plate assembly 7 and the second movable plate assembly 8 is realized.

It should be noted that, the transmission rod 440 may be integrally formed with the rotating rod 4422 of the at least one rotating rod 4422 to form a fork structure with a bending angle, so that the mechanical properties of the integral forming are better, and further the stability of the whole driving assembly 4 may be improved, and the mass production is convenient.

In addition, support 4420 includes the backup pad and sets up two installation department at the backup pad both ends respectively, and two installation department and backup pad fixed connection also can integrated into one piece, offer a plurality of holes that are used for being connected with dwang subassembly and transfer line 440 on two installation department, and support 4420 realizes the effective connection with transfer line 440 and dwang subassembly through two installation department, and then guarantees the effective operation of range hood equipment.

Example nine:

on the basis of any one of the above embodiments, as shown in fig. 5, further, the housing 1 includes a top plate 10 and an avoidance opening 100 formed on the top plate 10, and the rotating rod assembly can pass through the avoidance opening 100 to be fixedly connected with the mounting seat 32 of the first movable plate assembly 7 or the second movable plate assembly 8, so that the rotating rod assembly can be effectively prevented from interfering with the housing 1 in the process of driving transmission by matching the first movable plate assembly 7 or the second movable plate assembly 8, so that the housing 1 and the rotating rod assembly are worn for a long time, and the use experience of a user is reduced.

It should be noted that, the top plate 10 is fixedly connected with the shell 1, or the top plate 10 and the shell 1 adopt an integrated structure, the mechanical property of the integrated structure is better, and mass production can be realized on the basis of ensuring the connection strength of the top plate 10 and the shell 1, so that the production cost is reduced.

Further, can set up control panel on range hood's casing 1, control panel is connected with range hood, specifically, can be provided with two gear on the control panel, including low gear and high gear, wherein, low gear is the state of closing the second wind channel, high gear is the state when at least one fly leaf subassembly overturns to extreme position, the user can be according to the actual need in the culinary art in-process, open or close through adjusting high-low gear second wind channel 11, and then can make second wind channel 11 close when oil smoke or air current are less, when oil smoke or air current are great, open second wind channel 11 and realize the quick extraction of oil smoke, prevent that the oil smoke from excessive, this application can realize forming a plurality of air inlet channels of nimble variable according to user's actual need promptly, promote user's culinary art experience. Of course, the control panel can be provided with three gears, including a high gear, a medium gear and a low gear, and all can be set according to actual needs.

In addition, the range hood further includes a controller, a memory and a processor, the processor can be configured to detect the size or the concentration of the oil smoke or the air flow by using detection devices such as a sensor, a smoke sensor and the like in the first movable plate assembly 7, the second movable plate assembly 8 and the range hood, and the position of the air outlet, and the processor is electrically connected with the driving assembly 4, the controller controls the driving device 40 to drive the first movable plate assembly 7 or the second movable plate assembly 8 to turn over to open the second air duct 11, so that the oil smoke can quickly enter the range hood, and when the detection device detects that the oil smoke is smaller or the oil smoke is gradually reduced, the controller controls the driving device 40 to not drive the first movable plate assembly 7 or the second movable plate assembly 8, or controls the driving device 40 to drive the first movable plate assembly 7 or the second movable plate assembly 8 to move from the position of opening the second air duct 11 to the closed position of the second air duct 11, i.e. the second movable plate assembly 8 is controlled by the controller to move from the closed position of opening the second air duct 11, and the second air duct is controlled by the intelligent range hood to open the range hood.

In the description of the present specification, the terms "connected," "mounted," "secured," and the like are to be construed broadly, and for example, "connected" may be a fixed connection, a removable connection, or an integral connection; can be directly connected or indirectly connected through an intermediate medium. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.

In the description of the present specification, the terms "one embodiment," "some embodiments," "particular embodiments," and the like, mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, but various modifications and variations can be made to the present invention by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A range hood, comprising:

a housing, the lower side of the housing being configured to have an air inlet;

the fixed plate is arranged below the air inlet, and a first air channel is formed between the fixed plate and the shell;

at least one movable plate component positioned at the side of the fixed plate;

the driving assembly is fixedly arranged on the shell, part of the driving assembly is fixedly connected with the at least one movable plate assembly, and the driving assembly can drive the at least one movable plate assembly to move relative to the fixed plate so as to enable a second air channel to be formed between the at least one movable plate assembly and the fixed plate or enable the second air channel to be closed;

the range hood further includes:

the first filter screen is arranged at the air inlet;

the second filter screen is positioned between the first filter screen and the fixed plate, the at least one movable plate assembly moves to a working position, and the second filter screen can be exposed out of the second air channel formed between the at least one movable plate assembly and the fixed plate;

the second filter screen is connected with the at least one movable plate assembly, and the second filter screen can be close to or far away from the first filter screen along with the movement of the at least one movable plate assembly.

2. The range hood of claim 1, wherein the range hood further comprises a hood body,

the at least one movable plate component is provided with a plurality of working positions, and the angles formed by the at least one movable plate component and the plane where the fixed plate is located are unequal when the at least one movable plate component is positioned at different working positions.

3. The range hood of claim 1, wherein the range hood further comprises a hood body,

the filter holes on the first filter screen and the filter holes on the second filter screen are staggered in the up-down direction.

4. The range hood of claim 1, wherein the at least one movable plate assembly comprises:

a movable plate;

the mounting seat is arranged on the movable plate;

the filter screen mounting piece is arranged on the mounting seat and is connected with the second filter screen.

5. The range hood of claim 4, wherein the cooking fume remover comprises a plurality of cooking fume remover units,

the at least one movable plate assembly comprises a first movable plate assembly and a second movable plate assembly, and the first movable plate assembly and the second movable plate assembly are respectively positioned at two opposite sides of the fixed plate;

the driving assembly can drive the first movable plate assembly and the second movable plate assembly to synchronously move.

6. The range hood of claim 5, wherein the drive assembly comprises:

the driving device is arranged on the shell;

the connecting beam is connected with the driving device and can reciprocate along the up-down direction under the driving of the driving device;

the two transmission components are respectively positioned at two ends of the connecting beam, the two transmission components are respectively fixedly connected with the first movable plate component and the second movable plate component, the two transmission components can rotate under the drive of the connecting beam, and the two transmission components can drive the first movable plate component and the second movable plate component to move so as to open or close the second air duct.

7. The range hood of claim 6, wherein the transmission assembly comprises:

the transmission rod is movably connected with the connecting beam;

the rotating assembly is fixedly connected with the transmission rod and fixedly connected with the mounting seat of the first movable plate assembly or the mounting seat of the second movable plate assembly.

8. The range hood of claim 7, wherein the rotating assembly comprises:

The supporting piece is fixedly connected with the transmission rod;

the two groups of rotating rod assemblies are respectively arranged at two ends of the supporting piece and are movably connected with the supporting piece; the rotating rod assembly comprises at least one rotating rod, and the at least one rotating rod is fixedly connected with the mounting seat of the first movable plate assembly or the mounting seat of the second movable plate assembly.

9. The range hood of claim 8, wherein the housing comprises:

the top plate is provided with the air inlet;

dodge the opening, dodge the opening set up in on the roof, the dwang subassembly pass dodge the opening with the mount pad of first fly leaf subassembly or the mount pad fixed connection of second fly leaf subassembly.