CN114060879A

CN114060879A - Smoke exhaust ventilator

Info

Publication number: CN114060879A
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: 2022-02-18
Anticipated expiration: 2040-08-07
Also published as: CN114060879B

Abstract

The embodiment of the invention provides a range hood, which comprises: a housing, a lower portion of which is 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 which is positioned at the side of the fixed plate; the driving assembly is fixedly arranged on the shell, one part of the driving assembly is fixedly connected with the at least one movable plate assembly, 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 the second air channel is closed, a plurality of air inlet channels can be formed, and therefore air flow can enter the range hood through the air inlet channels to achieve the purpose of quickly exhausting oil smoke. And then can be when cooking or the oil smoke is great, through opening the second wind channel for inside oil smoke or air current can get into range hood from a plurality of inlet air channel fast, prevent that the oil smoke is excessive.

Description

Smoke exhaust ventilator

Technical Field

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

Background

Conventional european style range hood sets up the condensation plate in air intake below, and condensation plate surface area is big than the air intake area to effectively block oil and water from the cigarette machine inside down drippage, and because the condensation plate area is big at the smoking in-process, make the negative pressure zone of cigarette machine bottom expand outward, strengthen the cigarette machine smoking ability all around, prevent that the oil smoke is excessive. In addition, in the cooking process, as the oil fume firstly contacts the condensing plate in the rising process, the oil fume is condensed by the condensing plate and then is easier to intercept oil drops in the oil fume by the filter screen.

In order to improve the smoking effect of the conventional European-style range hood, at present, a channel with fixed width is formed around a condensing plate and a flow guide plate of the range hood and is used for airflow flowing.

The size of the condensing plate is fixed, so that the channel between the condensing plate and the guide plate is fixed, and when the range hood is opened, uniform airflow enters the fan around the channel. However, when cooking fumes are generated on one side of the cooking bench, most of the cooking fumes only enter the range hood from the single-side channel, and the cooking fumes cannot be quickly sucked away by the single-side channel of the fixed channel due to even airflow.

Disclosure of Invention

Embodiments of the present invention are directed to solving at least one of the technical problems occurring in the prior art.

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

In view of this, according to a first aspect of embodiments of the present invention, there is provided a range hood, including: a housing, a lower portion of which is 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 which is positioned at the side of the fixed plate; and one part of the driving assembly is fixedly arranged on the shell, one 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 form a second air channel 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 constructed to be provided with an air inlet, airflow 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 on 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 to say, through the motion of at least one movable plate subassembly of drive assembly drive, can make and form a plurality of inlet air channel between at least one movable plate subassembly and the casing, between at least one movable plate subassembly and the fixed plate to make the air current can get into range hood inside through above-mentioned a plurality of inlet air channel, in order to reach the purpose of quick pump drainage oil smoke. And then can be when cooking or the oil smoke is great, through opening the second wind channel for inside oil smoke or air current can get into range hood from a plurality of inlet air channel fast, prevent that the oil smoke is excessive.

In addition, the second air channel can be opened or closed relative to the fixed plate through the at least one movable plate component, so that a plurality of air inlet channels are formed, and the problem that the whole condensation plate structure is lifted to enlarge the air inlet channels for rapid smoking in the related art, the structure of the whole smoke machine is enlarged, and the production cost of the smoke machine is increased can be avoided.

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

in one possible design, at least one movable plate component has a plurality of working positions, and the angle formed by the plane where the fixed plate is located when the at least one movable plate component is located at different working positions is not equal to that of the fixed plate component.

In the design, in the process that the driving assembly drives the at least one movable plate assembly to move, the plane where the at least one movable plate assembly is located at different working positions and the plane where the fixed plate is located can form different angles, 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 size of 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, the at least one movable plate component moves to the 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, 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 at least one movable plate subassembly of drive subassembly drive moves for the fixed plate in order to open the second wind channel, oil smoke or air current can get into the second wind channel, pass through the second filter screen earlier, pass through first filter screen again, get into range hood inside at last, thereby form double filtration, and then when oil smoke or air current are great, drive at least one movable plate subassembly and form the second wind channel for the fixed plate, thereby carry out secondary filter to oil smoke or air current, filter effect when guaranteeing oil smoke or air current great, and then promote whole range hood's grease separation degree.

In one possible design, a second screen is connected to the at least one movable plate assembly, the second screen being capable of moving toward or away from the first screen with movement of the at least one movable plate assembly.

In this design, the motion of drive assembly drive at least one movable plate subassembly can drive the second filter screen and be close to or keep away from first filter screen, that is to say, at least one movable plate subassembly is at the in-process of a plurality of operating position motions, can drive the second filter screen and reciprocate simultaneously. Specifically, when the at least one movable plate assembly moves relative to the fixed plate to open the second air duct, the second filter screen moves upwards to be close to the first filter screen along with the at least one movable plate assembly, and when the second air duct moves from the open position to the closed position, the second filter screen moves downwards to be far away from the first filter screen along with the at least one movable plate assembly. When the oil smoke or the air current is large, 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 to be close to the first filter screen along with the at least one movable plate component, the oil smoke or the air current firstly passes through the second filter screen and then enters the interior of the range hood through the first filter screen, and double filtration is achieved. Through the portable design of second filter screen, can filter according to oil smoke or the needs of 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 filtering holes on the first filter screen and the filtering holes on the second filter screen are staggered in the vertical direction.

In this design, the filtration pore of crossing of first filter screen and second filter screen sets up in the upper and lower direction is crisscross, the grid of first filter screen and second filter screen is crisscross each other promptly, when oil smoke or air current are great, the second wind channel is opened, when oil smoke or air current can get into range hood from a plurality of inlet air channel inside fast, the crisscross first filter screen and the second filter screen that set up each other of grid can also carry out the double filtration to oil smoke or air current, guarantee the filter effect, and then promote whole range hood's grease separation degree.

In one possible design, the at least one movable plate assembly comprises: a movable plate; the mounting seat is arranged on the movable plate; the filter screen installed part sets up on the mount pad, and the filter screen installed part is connected with the second filter screen.

In this design, at least one movable plate subassembly includes fly leaf, mount pad and filter screen installed part, and wherein, the mount pad is fixed to be located on the fly leaf, and the second filter screen passes through the filter screen installed part and is connected with the mount pad, realizes that the second filter screen is connected with at least one fly leaf subassembly, and then when drive assembly drive at least one movable plate subassembly moved to operating position, at least one movable plate subassembly can drive the second filter screen and remove to the direction of first filter screen.

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

In this design, at least one movable plate subassembly is including being located the first movable plate subassembly and the second movable plate subassembly of fixed plate both sides respectively, that is to say, first movable plate subassembly and second movable plate subassembly are located the left and right sides of fixed plate respectively, wherein, drive assembly can drive first movable plate subassembly and second movable plate subassembly and carry out simultaneous movement, thereby make between first movable plate subassembly and the fixed plate, between second movable plate subassembly and the fixed plate, form a plurality of inlet air channels between first movable plate subassembly and the casing and between second movable plate subassembly and the casing, in order to reach the purpose of quick pump drainage oil smoke.

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 in the vertical direction under the driving of the driving device; the two transmission assemblies are respectively positioned at two ends of the connecting beam and movably connected with the connecting beam, the two transmission assemblies are respectively fixedly connected with the first movable plate assembly and the second movable plate assembly, the two transmission assemblies can be driven by the connecting beam to rotate, and the two transmission assemblies can drive the first movable plate assembly and the second movable plate assembly to move so as to open or close the second air duct.

In this design, drive assembly includes drive arrangement, tie-beam and two transmission assembly, wherein, the tie-beam is connected with drive arrangement, and can reciprocate under drive arrangement's drive, the one end of two transmission assembly respectively with the both ends swing joint of tie-beam, the other end of two transmission assembly respectively with first movable plate subassembly and second movable plate subassembly fixed connection, and then drive arrangement drive tie-beam reciprocates, the both ends of tie-beam drive two transmission assembly and rotate, simultaneously, two transmission assembly drive first movable plate subassembly and the motion of second movable plate subassembly, thereby make the second wind channel open or close, realize drive arrangement drive linkage in order to form the changeable a plurality of inlet air channel of activity, make inside oil smoke or air current can get into range hood fast, prevent that the oil smoke is excessive.

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

In this design, drive arrangement and tie-beam are kept away from the air intake setting, are about to drive arrangement and tie-beam setting in the rear end of casing, because range hood's fan system's main air intake is in the front side, and the casing rear side advances the cigarette less relatively 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 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, transmission assembly includes transfer line and runner assembly, and wherein, the one end and the tie-beam swing joint of transfer line, the other end and the runner assembly fixed connection of transfer line, and then through the reciprocating of tie-beam, transmit power for runner assembly through the transfer line for the runner assembly can rotate, thereby drives first movable plate subassembly or the motion of second movable plate subassembly 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 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.

In this design, the runner assembly includes support piece and two sets of runner assembly, and wherein, the runner assembly includes at least one dwang, the one end and the support piece swing joint of at least one dwang, the other end and first movable plate subassembly or second movable plate subassembly fixed connection of at least one dwang, and support piece's both ends are located to two sets of runner assembly correspondences. 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 rotating rod assemblies to rotate, and the last two groups of rotating 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 driving process of driving the first movable plate assembly and the second movable plate assembly by the driving 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 dodges the opening and the mount pad of first movable plate subassembly or the mount pad fixed connection of second movable plate subassembly.

In this design, the casing includes the roof and locates the opening of dodging on the roof, and the rotating rod subassembly can pass and dodge the opening and carry out fixed connection with the mount pad of first movable plate subassembly or second movable plate subassembly to can prevent effectively that the rotating rod subassembly from lieing in that first movable plate subassembly or second movable plate subassembly cooperation carry out drive's in-process and taking place to interfere with the casing, and lead to casing and rotating rod subassembly long-term wearing and tearing, reduce user's use and experience.

Additional aspects and advantages in accordance with 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 above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

fig. 1 shows a schematic structural diagram of a range hood according to an embodiment of the present invention;

fig. 2 is a schematic structural diagram illustrating the range hood closing the second air duct according to an embodiment of the present invention;

fig. 3 shows a schematic structural diagram of a range hood according to another embodiment of the invention;

fig. 4 is a schematic structural diagram illustrating the range hood according to an embodiment of the present invention when the second air duct is opened;

fig. 5 shows a schematic structural diagram of a range hood according to yet another embodiment of the present invention;

fig. 6 shows a schematic structural diagram of a range hood according to yet another embodiment of the invention;

fig. 7 shows a schematic structural diagram of a range hood according to a further embodiment of the invention;

fig. 8 shows a schematic structural diagram of a range hood according to a further embodiment of the invention;

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

FIG. 10 illustrates a schematic structural view of a second screen according to one embodiment of the present invention;

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

Wherein, the correspondence between the reference numbers and the part names in fig. 1 to 11 is:

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

Detailed Description

In order that the above objects, features and advantages of the present invention can be more clearly understood, a more particular description of the invention will be rendered by reference to the appended drawings. It should be noted that the embodiments and features of the embodiments of the present application may be combined with each other without conflict.

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 specifically described herein, and thus the scope of the present invention is not limited by the specific embodiments disclosed below.

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

The first embodiment is as follows:

as shown in fig. 1 and 2, an embodiment of the first aspect of the present invention provides a range hood, which includes a housing 1, a fixed plate 2, at least one movable plate assembly 3, and a driving assembly 4, wherein a 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 to 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 assembly 3 and a driving assembly 4, wherein an air inlet is formed below the shell 1, airflow 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 assembly 3 is positioned on the side of the fixed plate 2, and the driving assembly 4 drives the at least one movable plate assembly 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 assembly 3 and the fixed plate 2 or the second air channel 11 can be closed. That is to say, the driving assembly 4 drives the at least one movable plate assembly 3 to move, so that a plurality of air inlet channels are formed between the at least one movable plate assembly 3 and the casing 1 and between the at least one movable plate assembly 3 and the fixed plate 2, and thus, air flow can enter the range hood through the air inlet channels, so as to achieve the purpose of quickly exhausting oil smoke. And then can be when cooking or the oil smoke is great, through opening second wind channel 11 for inside oil smoke or air current can get into range hood from a plurality of inlet air channel fast, prevent that the oil smoke is excessive.

In addition, the second air channel 11 can be opened or closed relative to the fixed plate 2 through the at least one movable plate assembly 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 condensation plate structure is lifted to enlarge the air inlet channels for rapid smoking in the related art can be avoided.

It should be noted that the at least one movable plate assembly 3 and the fixed plate 2 jointly form a condensation plate structure, when oil smoke generated by the furnace ends on both sides during cooking is small, the second air duct 11 is closed, that is, the at least one movable plate assembly 3 and the fixed plate 2 are in the same plane, the at least one movable plate assembly 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 smoke or the air flow enters the interior of the range hood through the air flow channel. When dishes or oil smoke is large, the driving component 4 drives the at least one movable plate component 3 to open the second air channel 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, the air inlet channels of the oil smoke or the air flow are increased, the oil smoke or the air flow can enter the range hood through the plurality of air inlet channels quickly, and the oil smoke or the air flow is sucked away quickly.

It should be further noted that the range hood further comprises at least one connecting piece, the fixed plate 2 is fixedly connected with the casing 1 through at least one connecting piece, wherein the number of the at least one connecting piece is four, one end of each of the four connecting pieces is respectively fixedly connected with the periphery of the fixed plate 2, the other end of each of the four connecting pieces is respectively fixedly connected with the casing 1, the connecting pieces are arranged on the periphery of the fixed plate 2 to be fixedly connected with the casing 1, the connection stability between the fixed plate 2 and the casing 1 can be effectively ensured, and the safety problem caused by the fact that the fixed plate 2 drops in the cooking process due to the fact that the fixed plate 2 is not firmly connected with the casing 1 is prevented. Wherein, can set at least one connecting piece to inside hollow structure to can save materials on the basis of guaranteeing fixed

plate

2 and 1 joint strength of casing, and then can reduce range hood's manufacturing cost.

Further, casing 1 includes the guide plate, the guide plate encloses the below of establishing at the air intake, be used for leading for oil smoke or air current, when second wind channel 11 is opened, between guide plate and at least one fly leaf subassembly 3, form a plurality of inlet air channel between at least one fly leaf subassembly 3 and the fixed plate 2, and then can make oil smoke or air current when great, can get into inside the cigarette machine through a plurality of inlet air channel fast, guarantee the oil absorption cigarette effect, wherein, the guide plate can be with casing 1 integrated into one piece, integrated into one piece structure mechanical properties is good, and be convenient for produce and process, also do benefit to batch production.

Example two:

on the basis of the above embodiment, further, 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 angle formed by the plane where the at least one movable plate assembly 3 is located and the plane where the fixed plate 2 is located when the at least one movable plate assembly 3 is located at different working positions is not equal.

In this embodiment, in the process that the driving assembly 4 drives the at least one movable plate assembly 3 to move, the plane of the at least one movable plate assembly 3 at different working positions and the plane of the fixed plate 2 can form different angles, so that the second air duct 11 has different ventilation areas, the air inlet area of the second air duct 11 can be adjusted according to the size of oil smoke, 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, the limit position of the at least one movable plate assembly 3 moving relative to the fixed plate 2, and when the at least one movable plate assembly 3 is located 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 current is large, the at least one movable plate assembly 3 can be driven to move to the limit position relative to the fixed plate 2, so that the oil smoke or the air current can rapidly enter the range hood through the second air duct 11 and other passages, 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 close to the fixed plate 2 is driven by the driving assembly 4 to turn upwards to form the second air duct 11, so that the inclination direction of the at least one movable plate assembly 3 is consistent with the inclination direction of the guide plate of the housing 1, oil smoke or air flow can conveniently enter the range hood through the plurality of air inlet channels, and the oil smoke absorption effect when the oil smoke is large is further ensured. Wherein, the structure of fixed plate 2 can be the quadrangle structure, and four connecting pieces are located four installation angles of fixed plate 2.

Example three:

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, wherein 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 the at least one flap 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 flap assembly 3 and the fixed plate 2.

In this embodiment, the range hood further includes a first filter screen 5 and a second filter screen 6, wherein the first filter screen 5 is located at the air inlet and is fixedly installed on the housing 1, and the second filter screen 6 is disposed between the first filter screen 5 and the fixing plate 2. When the driving component 4 drives at least one movable plate component 3 to move relative to the fixed plate 2 so as to open the second air channel 11, oil smoke or air flow can enter the second air channel 11, firstly pass through the second filter screen 6, then pass through the first filter screen 5, and finally enter the interior of the range hood, so as to form double filtration, and further when the oil smoke or air flow is large, at least one movable plate component 3 is driven to form the second air channel 11 relative to the fixed plate 2, so as to perform secondary filtration on the oil smoke or air flow, so as to ensure the filtering effect when the oil smoke or air flow is large, and further improve the oil-fat separation degree of the whole range hood.

As shown in fig. 7 and 8, further, a second screen 6 is connected to the at least one movable plate assembly 3, and the second screen 6 can be moved closer to or away from the first screen 5 following the movement of the at least one movable plate assembly 3.

In this embodiment, the driving assembly 4 drives the at least one movable plate assembly 3 to move, so as to drive the second filter screen 6 to approach or depart from the first filter screen 5, that is, the at least one movable plate assembly 3 can drive the second filter screen 6 to move up and down simultaneously during the movement of the plurality of working positions. Specifically, the second screen 6 follows the at least one flap assembly 3 to move upward to be close to the first screen 5 when the at least one flap assembly 3 moves relative to the fixed plate 2 to open the second air chute 11, and the second screen 6 follows the at least one flap assembly 3 to move downward to be away from the first screen 5 when the second air chute 11 moves from the open position to the closed position. When the oil smoke or the air current is small, the second air duct 11 is closed, namely, at least one movable plate component 3 and the fixed plate 2 are in the same plane, most of the oil smoke or the air current enters the range hood through the first filter screen 5, when the oil smoke or the air current 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 to be close to the first filter screen 5 along with the at least one movable plate component 3, the oil smoke or the air current firstly passes through the second filter screen 6 and then enters the range hood through the first filter screen 5, and double filtration is achieved. Through the portable design of second filter screen 6, can filter according to oil smoke or the needs of 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 10, the first filter screen 5 may be a single-layer filter screen, when oil smoke or air flow is small, the second air duct 11 is not opened, most of the oil smoke or air flow enters the range hood through the first filter screen 5, and by setting the first filter screen 5 to be a single-layer structure, the air resistance can be effectively reduced, so that the oil smoke or air flow can enter the range hood quickly. The second filter screen 6 can be a double-layer or multilayer structure, when oil smoke or air current concentration is great, at least one movable plate component 3 overturns under the drive of the drive component 4, simultaneously, the second filter screen 6 moves upwards under the drive of at least one movable plate component 3 so as to be close to the first filter screen 5, the oil smoke or air current firstly passes through the second filter screen 6 and then passes through the first filter screen 5, double filtration is realized, and the filtering effect is improved.

It should be noted that, when the 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 the closest, or when the at least one movable plate assembly 3 is turned to the limit position, the second filter screen 6 is just attached to the first filter screen 5, the distance between the second filter screen 6 and the first filter screen 5 after the second filter screen 6 moves is not limited, and the second filter screen 6 can move close to the first filter screen 5 under the driving of the at least one movable plate assembly 3, so that the double filtration of the second filter screen 6 and the first filter screen 5 is realized, and the protection ranges are within the protection range of the present application.

In a specific embodiment, the filtering holes of the first filter screen 5 and the second filter screen 6 are staggered in the vertical direction.

In this embodiment, the grids of the first filter screen 5 and the second filter screen 6 are staggered with each other, when oil smoke or air current is large, the second air duct 11 is opened, the oil smoke or the air current can enter the range hood from a plurality of air inlet channels rapidly, and the oil smoke or the air current can be effectively double-filtered through the first filter screen 5 and the second filter screen 6 which are staggered with each other through the grids, so that the filtering effect is fully ensured, and the oil-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 set to other structures, and may be set according to actual needs, as long as the filter screen structure capable of effectively performing double filtration on oil smoke or air flow is realized.

Example four:

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

In this embodiment, the at least one movable plate assembly 3 includes a movable plate 30, a mounting seat 32 and a screen mounting member 34, wherein the mounting seat 32 is fixedly disposed on the movable plate 30, the second screen 6 is connected to the mounting seat 32 through the screen mounting member 34, so that the second screen 6 is connected to the at least one movable plate assembly 3, and then 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 screen 6 to move toward the first screen 5.

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

In addition, a plurality of first threaded holes are formed in the movable plate 30, a plurality of second threaded holes which correspond to the first threaded holes one to one are formed in the mounting base 32, the range hood further comprises a plurality of fasteners, and the movable plate 30 and the mounting base 32 are fixedly connected through the first threaded holes and the second threaded holes respectively by the plurality of fasteners. Of course, the movable plate 30 and the mounting seat 32 may also 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 between the movable plate 30 and the mounting seat 32.

Example five:

on the basis of any of the above embodiments, the specific number of the at least one movable plate assembly 3 is limited, as shown in fig. 1, 3 and 6, and further, 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, wherein the driving assembly 4 can drive the first movable plate assembly 7 and the second movable plate assembly 8 to move synchronously.

In this embodiment, 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 the 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 motion, 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 rapidly exhausting and exhausting the oil smoke.

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, and 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, and two filter screen mounting pieces 34 are relatively arranged, and the periphery of the second filter screen 6 is connected with the four filter screen mounting pieces 34, 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 perform synchronous movement, that is, the left and right sides of the second filter screen 6 can be lifted or lowered simultaneously, the mechanism can be prevented from being locked during the movement.

Example six:

on the basis of any of the above embodiments, a 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, wherein the connecting beam 42 is connected to 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 to two ends of the connecting beam 42, the other ends of the two transmission assemblies 44 are fixedly connected to the first movable plate assembly 7 and the second movable plate assembly 8, respectively, and the two transmission assemblies 44 are driven by the connecting beam 42 to rotate, so as to drive the first movable plate assembly 7 and the second movable plate assembly 8 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, the two ends of the connecting beam 42 drive the two transmission assemblies 44 to rotate, and meanwhile, the two transmission assemblies 44 drive the first movable plate assembly 7 and the second movable plate assembly 8 to move, so that the second air duct 11 is opened or closed, the driving device 40 is driven to be linked to form a plurality of air inlet channels with variable activities, oil smoke or air flow can enter the range hood quickly, and the oil smoke is prevented from overflowing.

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

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

In one embodiment, as shown in fig. 5 and 6, further, the driving device 40 and the connecting beam 42 are disposed away from the intake vent.

In this embodiment, the driving device 40 and the connecting beam 42 are disposed at positions 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 casing 1, since the main air inlet of the fan system of the range hood is at the front side, and the rear side of the casing 1 has relatively less smoke, so that the driving device 40 may be effectively protected from oil smoke pollution. Of course, the driving device 40 and the connecting beam 42 may be disposed at other positions of the housing 1, and any position that can be away from the air inlet to reduce the oil smoke pollution to the motor may be used, which is not limited in this application.

Example seven:

based on the above embodiment, the specific structure of the transmission assembly 44 is defined, as shown in fig. 7 and 8, further, the transmission assembly 44 includes a transmission rod 440 and a rotating assembly 442, wherein one end of the transmission rod 440 is movably connected to the connecting beam 42, and the other end of the transmission rod 440 is fixedly connected to the rotating assembly 442, so that the power is transmitted to the rotating assembly 442 through the transmission rod 440 by the up-and-down movement of the connecting beam 42, so that the rotating assembly 442 can rotate, and the first movable plate assembly 7 or the second movable plate assembly 8 is driven 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, and the rotating assembly 442 further drives the first movable plate assembly 7 or the second movable plate assembly 8 to overturn, so that the effective driving transmission process is realized, and the effective operation of the equipment is ensured.

Example eight:

on the basis of the above-mentioned embodiments, specific structures of the rotating assembly 442 are defined, as shown in fig. 7, 8 and 11, further, the rotating assembly 442 includes a support piece 4420 and two sets of rotating rod assemblies, wherein the rotating rod assembly includes at least one rotating rod 4422, one end of the at least one rotating rod 4422 is movably connected with the support piece 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 disposed at two ends of the support piece 4420. Through the above 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 sets of rotating rod assemblies to rotate, and the last two sets of rotating 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 driving process of driving the first movable plate assembly 7 and the second movable plate assembly 8 by the driving assembly 4 is realized.

It should be noted that the transmission rod 440 may be integrally formed with the rotation rod 4422 of the at least one rotation rod 4422 to form a fork-shaped structure with a bending angle, and the integrally formed mechanical property is better, so that the stability of the whole driving assembly 4 may be improved, and the mass production is facilitated.

In addition, the support 4420 comprises a support plate and two mounting parts respectively arranged at two ends of the support plate, the two mounting parts are fixedly connected with the support plate and can also be integrally formed, a plurality of holes used for being connected with the rotating rod assembly and the transmission rod 440 are formed in the two mounting parts, and the support 4420 is effectively connected with the transmission rod assembly 440 and the rotating rod assembly through the two mounting parts, so that the effective operation of the range hood device is ensured.

Example nine:

on the basis of any of the above embodiments, as shown in fig. 5, further, the housing 1 includes a top plate 10 and an avoidance opening 100 disposed on the top plate 10, and the rotating rod assembly can pass through the avoidance opening 100 to be fixedly connected to 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 the cooperation of the first movable plate assembly 7 or the second movable plate assembly 8, which results in long-term wear of the housing 1 and the rotating rod assembly, and reduces the user experience.

It should be noted that, the top plate 10 is fixedly connected to the housing 1, or the top plate 10 and the housing 1 are integrally formed, and the integrally formed structure has good mechanical properties, so that mass production and production cost reduction can be realized on the basis of ensuring the connection strength between the top plate 10 and the housing 1.

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

In addition, a sensor, a smoke sensing probe and other detection devices can be arranged at the positions of the first movable plate assembly 7, the second movable plate assembly 8, the interior of the range hood, the air outlet and the like to detect the size or concentration of oil smoke or air flow, the range hood further comprises a controller, a memory and a processor, the processor can be configured to realize that when the detection devices detect that the oil smoke is large or the concentration is large, a detection signal is sent to the controller, the controller 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 interior of the range hood, when the detection devices detect that the oil smoke is small or the oil smoke gradually decreases, the detection signal is sent to the controller, the controller controls the driving device 40 not to drive the first movable plate assembly 7 or the second movable plate assembly 8, or the controller 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 closing position of the second air duct 11, that is, the second air duct 11 moves from the opening state to the closing state, thereby realizing the intelligent smoke control of the range hood.

In the description of the present specification, the terms "connect", "mount", "fix", and the like are to be understood in a broad sense, for example, "connect" may be a fixed connection, a detachable connection, or an integral connection; may be directly connected or indirectly connected through an intermediate. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the description herein, the description of the terms "one embodiment," "some embodiments," "specific embodiments," etc., means 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 invention. In this specification, the schematic representations of the terms used above 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, and various modifications and changes will occur to those skilled in the art. Any modification, equivalent replacement, or improvement 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, a lower portion of the housing 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 which is positioned at the side of the fixed plate;

and a part of the driving assembly is fixedly arranged on the shell, a part of the driving assembly is fixedly connected with the at least one movable plate component, and the driving assembly can drive the at least one movable plate component to move relative to the fixed plate so as to form a second air channel between the at least one movable plate component and the fixed plate or close the second air channel.

2. The range hood of claim 1,

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 not equal when the at least one movable plate component is located at different working positions.

3. The range hood of claim 1, further comprising:

the first filter screen is arranged at the air inlet;

the second filter screen is located between the first filter screen and the fixed plate, the at least one movable plate component moves to a working position, and the second filter screen can be exposed out of the second air duct formed between the at least one movable plate component and the fixed plate.

4. The range hood of claim 3,

the second filter screen is connected with the at least one movable plate component, 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 component.

5. The range hood of claim 3,

the filtering holes in the first filter screen and the filtering holes in the second filter screen are arranged in a staggered mode in the vertical direction.

6. The range hood of claim 3, wherein the at least one movable plate assembly comprises:

a movable plate;

the mounting seat is arranged on the movable plate;

the filter screen installed part sets up on the mount pad, the filter screen installed part with the second filter screen is connected.

7. The range hood of claim 6,

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 on two opposite sides of the fixed plate;

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

8. The range hood of claim 7, 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 in the vertical direction under the driving of the driving device;

two transmission assemblies are respectively located at two ends of the connecting beam, the two transmission assemblies are respectively fixedly connected with the first movable plate assembly and the second movable plate assembly, the two transmission assemblies can be driven to rotate under the driving of the connecting beam, and the two transmission assemblies can drive the first movable plate assembly and the second movable plate assembly to move so as to open or close the second air duct.

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

the transmission rod is movably connected with the connecting beam;

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

10. The range hood of claim 9, wherein the rotating assembly comprises:

the support 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 dwang subassembly includes at least one dwang, at least one dwang with the mount pad of first movable plate subassembly or the mount pad fixed connection of second movable plate subassembly.

11. The range hood of claim 10, 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 passes dodge the opening with the mount pad of first movable plate subassembly or the mount pad fixed connection of second movable plate subassembly.