CN114060881B - Fume exhaust fan - Google Patents

Abstract

The embodiment of the invention provides a range hood, which comprises: the shell is provided with an air inlet below, at least two movable plate assemblies are positioned below the air inlet, and a first air channel is formed between the at least two movable plate assemblies and the shell; the driving assembly is fixedly arranged on the shell, part of the driving assembly is fixedly connected with the at least two movable plate assemblies, and the driving assembly can drive the at least two movable plate assemblies to move so that a second air channel is formed between the at least two movable plate assemblies or the second air channel is closed. At least two movable plate assemblies are driven to move through the driving assembly, and a second air duct is added on the basis of the first air duct, so that the purpose of quickly 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 at least two movable plate assemblies are positioned below the air inlet, and a first air channel is formed between the at least two movable plate assemblies and the shell; the driving assembly is fixedly arranged on the shell, part of the driving assembly is fixedly connected with the at least two movable plate assemblies, and the driving assembly can drive the at least two movable plate assemblies to move so that a second air channel is formed between the at least two movable plate assemblies or the second air channel is closed.

The range hood provided by the embodiment of the invention comprises a shell, at least two movable plate assemblies and a driving assembly, wherein the lower part of the shell is provided with an air inlet, air flow enters the range hood through the air inlet, the at least two movable plate assemblies are arranged below the air inlet and form a first air channel with the shell, the driving assembly drives the at least two movable plate assemblies to move, so that a second air channel can be formed between the at least two movable plate assemblies, namely, the driving assembly drives the at least two movable plate assemblies to move, a plurality of air inlet channels can be formed between the at least two movable plate assemblies and the shell and between the at least two movable plate assemblies, namely, a second air channel is added on the basis of the first air channel, so that the air flow can enter the range hood through the plurality of air inlet channels, and the aim of quickly exhausting the oil fume 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.

In addition, the at least two movable plate assemblies are driven to move, so that the second air duct can be opened or closed between the at least two movable plate assemblies, a plurality of air inlet channels are formed, and the problem that the whole condensing plate structure is lifted to enlarge the air inlet channels for quick smoking in the related art, so that the whole smoke ventilator structure is enlarged, and the production cost of the smoke ventilator is increased 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 two of the flap assemblies have a plurality of operating positions, the angles formed by the at least two flap assemblies with respect to the horizontal plane being unequal when the at least two flap assemblies are in different operating positions.

In this design, the in-process of at least two fly leaf subassemblies of drive assembly drive motion, the plane and the horizontal plane that two at least fly leaf subassemblies are located at different working position can form different angles to make the second wind channel have different air inlet areas, and then can be according to the oil smoke size, the working position of control drive assembly drive two at least fly leaf subassemblies, thereby can adjust the air inlet area in second wind channel, when reaching quick sucking away oil smoke or air current, reinforcing user's use experience.

In one possible design, at least two of the fly leaf assemblies comprise: a movable plate; the mounting seat is arranged on the movable plate and comprises a first mounting part and a second mounting part, wherein the first mounting part is movably connected with the shell, and the second mounting part is fixedly connected with the driving assembly.

In this design, two at least fly leaf subassemblies include fly leaf and mount pad, wherein, mount pad fixed mounting is on the fly leaf, and the mount pad includes first installation department and second installation department, first installation department and casing swing joint, second installation department and drive assembly fixed connection, that is to say, drive assembly and casing are connected through mount pad and fly leaf to under drive assembly's drive, can make two at least fly leaf subassemblies move in order to increase the quantity of air inlet passageway, reach the purpose of quick extraction oil smoke.

In one possible design, the at least two movable plate assemblies include a first movable plate assembly and a second movable plate assembly, and the drive assembly is capable of driving the first movable plate assembly and the second movable plate assembly to move synchronously.

In this design, at least two fly leaf subassemblies include first fly leaf subassembly and second fly leaf subassembly, and wherein, first fly leaf subassembly sets up side by side with the second fly leaf subassembly about, under drive assembly's drive, can make first fly leaf subassembly and second fly leaf subassembly synchronous motion to open the second wind channel, increase the quantity of air inlet passageway, oil smoke or air current can get into the oil smoke inside from a plurality of air inlet passageways, prevent that the oil smoke from overflowing.

In one possible design, the range hood further comprises: the air guide assembly is positioned between the first movable plate assembly and the second movable plate assembly and is fixedly connected with the shell.

In this design, the range hood still includes the wind-guiding subassembly that is located between first fly leaf subassembly and the second fly leaf subassembly, when the second wind channel is closed, wind-guiding subassembly constitutes the condensation plate structure jointly with first fly leaf subassembly and second fly leaf subassembly, and then make condensation plate structure and casing form first wind channel, oil smoke or air current get into inside the range hood through first wind channel, when drive assembly drives first fly leaf subassembly and second fly leaf subassembly upwards overturns, form a plurality of air inlet channels between first fly leaf subassembly and the wind-guiding subassembly, between second fly leaf subassembly and the wind-guiding subassembly, oil smoke or air current can get into the range hood from a plurality of air inlet channels fast inside, in order to reach the purpose of quick oil smoke extraction.

In one possible design, the air guiding assembly includes: an air guide beam; the air guide plate is provided with air inlet holes, the number of the air guide plates is two, the two air guide plates are respectively arranged on two sides of the air guide beam, and when the first movable plate assembly and the second movable plate assembly move to the working positions, the air guide plate can be exposed out of a second air channel formed between the first movable plate assembly and the second movable plate assembly.

In this design, wind-guiding subassembly includes wind-guiding roof beam and two aviation baffles, and two aviation baffles are located the both sides of wind-guiding roof beam to with wind-guiding roof beam fixed connection, when drive assembly drive first fly leaf subassembly and second fly leaf subassembly moved to working position, form a plurality of air inlet passageway between first fly leaf subassembly and the aviation baffle, between second fly leaf subassembly and the aviation baffle, with form the second wind channel, through increasing the quantity of air inlet passageway for oil smoke or air current can discharge fast, prevent that the oil smoke from overflowing.

Further, a plurality of air inlet holes are respectively formed in the two air deflectors, when the first movable plate assembly and the second movable plate assembly move to the working position, the plurality of air inlet holes in the two air deflectors can be exposed in the second air channel, when the oil smoke or the air flow is large, the driving assembly drives the first movable plate assembly and the second movable plate assembly to move so as to form the second air channel, and the oil smoke or the air flow can enter the interior of the range hood through a plurality of air inlets in the two air deflectors, so that the smoke can be discharged rapidly by increasing the quantity of the air inlet channels.

In one possible design, one end of one of the two air deflectors, which is far away from the air guiding beam, is inclined towards the side where the first movable plate assembly is located; one end of the other air deflector far away from the air deflector is inclined to the side where the second movable plate assembly is located.

In this design, one of them aviation baffle inclines to the one side that first fly leaf subassembly is located, and another aviation baffle inclines to the one side that second fly leaf subassembly is located, and then under drive assembly's drive, first fly leaf subassembly and second fly leaf subassembly motion are opened in order to make the second wind channel, and two aviation baffles expose in the second wind channel, and the incline direction of aviation baffle can be convenient for oil smoke or air current get into the inside of lampblack absorber through the aviation baffle, further guarantees to be able to extract the oil smoke fast.

In one possible design, an opening is formed between the air guide beam and the two air guide plates; the air guide assembly further includes: the oil baffle is arranged on the opening close to one side of the driving assembly.

In this design, keep off oily spare setting on the opening that forms between wind-guiding roof beam and two aviation baffles that is close to drive assembly one side, shelter from drive assembly through setting up oily spare promptly to when range hood work, keep off oily spare and can block oil smoke flow direction drive assembly, thereby can avoid oil smoke or oily to cause the pollution to drive assembly.

In one possible design, the housing includes a mounting plate, and the drive assembly includes: the driving device is arranged on the mounting plate; the sliding block is connected with the driving device and can reciprocate along the up-down direction under the driving of the driving device; the support frame is arranged on the other side of the mounting plate corresponding to the driving device; the transmission assembly is arranged on one side of the support frame and fixedly connected with the sliding block, the transmission assembly is respectively fixedly connected with the first movable plate assembly and the second movable plate assembly, the transmission assembly can move under the driving of the sliding block, and the transmission assembly 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, slider, support frame and drive assembly, wherein, drive arrangement sets up on the mounting panel, and the slider can reciprocate in the within range of predetermineeing under drive arrangement's drive, drive assembly and slip fixed connection, drive arrangement drive slider reciprocate promptly, and the slip drives drive assembly motion, drive assembly and first fly leaf subassembly and second fly leaf subassembly fixed connection, that is to say, drive assembly motion can drive first fly leaf subassembly and second fly leaf subassembly and upwards overturn in order to open the second wind channel or close the second wind channel, realizes drive assembly's drive and transmission process. Further, the driving assembly further comprises a supporting frame, the supporting frame and the driving device are correspondingly arranged on the other side of the mounting plate, and the transmission assembly is connected with the supporting frame, so that the supporting is provided for the transmission process of the transmission assembly.

In one possible design, the transmission assembly includes: the sliding piece is fixedly connected with the sliding block and can slide on the support frame under the drive of the sliding block; the transmission rod assembly is respectively and movably connected with the sliding piece and the support frame, and is respectively and fixedly connected with the first movable plate assembly and the second movable plate assembly; the connecting axle, the one end and the transfer line subassembly fixed connection of connecting axle, the other end and first fly leaf subassembly or second fly leaf subassembly fixed connection of connecting axle, the transfer line subassembly can drive the connecting axle and rotate in order to make first fly leaf subassembly or second fly leaf subassembly upset.

In this design, the drive assembly includes slider, transfer line subassembly and connecting axle, wherein, slider and slider fixed connection, the slider can slide on the support frame under the drive of slider, transfer line subassembly respectively with support frame and slider swing joint, and transfer line subassembly respectively with first fly leaf subassembly and second fly leaf subassembly pass through connecting axle fixed connection, under drive arrangement's drive, the slider reciprocates, the slider removes and drives the slider and slide on the support frame, the slider carries out can drive transfer line subassembly motion, and give the connecting axle by transfer line subassembly with power transmission, the connecting axle can rotate under the drive of transfer line subassembly, thereby the both ends of connecting axle respectively with transfer line subassembly and first fly leaf subassembly or second fly leaf subassembly fixed connection, thereby the connecting axle rotates and drives first fly leaf subassembly or second fly leaf subassembly upwards overturns in order to open the second wind channel, the transmission under the drive arrangement drive, the transmission drives the whole process of first fly leaf subassembly and second fly leaf subassembly motion, and then can open or close the second wind channel according to actual need, promote user experience and use.

In one possible design, the transfer bar assembly includes: the first transmission rod is movably connected with the sliding piece; one end of the second transmission rod is movably connected with the support frame, and the first transmission rod is movably connected with the second transmission rod; the other end of the second transmission rod is movably connected with the third transmission rod; the connecting shaft transmission rod is fixedly arranged on the connecting shaft.

In this design, the transfer line subassembly includes first transfer line, second transfer line, third transfer line and connecting axle transfer line, wherein, the one end and the slider swing joint of first transfer line, the other end and the second transfer line swing joint of first transfer line, the one end and the support frame swing joint of second transfer line, the other end and the one end swing joint of third transfer line of second transfer line, the other end and the one end swing joint of connecting axle transfer line of third transfer line, the other end and the first fly leaf subassembly or the second fly leaf subassembly fixed connection of connecting axle transfer line. Through the structure, the sliding part moves up and down under the drive of the sliding block, the sliding part moves up and down to drive the first transmission part, the first transmission part transmits power to the second transmission part, one end of the second transmission part is connected with the support frame, namely the other end of the second transmission part moves up and down under the drive of the first transmission part, the power is continuously transmitted to the third transmission part, the third transmission part drives the connecting shaft transmission rod to rotate and swing, and finally the first movable plate component or the second movable plate component is turned over.

In one possible design, the support frame comprises: the number of the supporting plates is two, the two supporting plates are oppositely arranged, and an avoidance opening is formed between the two supporting plates; the fixing piece is fixedly connected with the two supporting frames respectively; and a sliding part formed on the support plate, on which the sliding member can slide.

In this design, the support frame includes backup pad, mounting and sliding part, and wherein, two backup pads set up relatively to be formed with dodge the opening, the mounting respectively with two support frame fixed connection, the sliding part respectively forms in two backup pads, and the sliding part can slide on the sliding part, thereby makes the sliding part slide from top to bottom in the sliding part under the drive of slider.

In one possible design, the range hood further comprises: the sliding block penetrates through the communication groove and the avoidance opening to be fixedly connected with the sliding piece; the number of the mounting holes is two, the two mounting holes are respectively positioned at two sides of the driving device, and the connecting shaft can rotate in the mounting holes.

In this design, range hood still includes intercommunication groove and two mounting holes, and the both sides in intercommunication groove are located respectively to two mounting holes, and the slider can pass the dodge opening and the slider of intercommunication groove and support frame and carry out fixed connection to realize drive arrangement drive transmission's process, guarantee the steady operation of equipment. Further, the connecting shaft can rotate in the mounting hole, so that the connecting shaft can rotate in the mounting hole under the drive of the transmission assembly to drive the first movable plate assembly or the second movable plate assembly to turn over so as to open or close the second air duct.

In one possible design, the range hood further comprises: one end of the connecting piece is fixedly connected with the shell, and the other end of the connecting piece is movably connected with at least two movable plate assemblies.

In this design, range hood still includes the connecting piece, and the one end fixed mounting of connecting piece is on the casing, specifically, can carry out fixed connection with the one end of connecting piece and casing through threaded connection, and threaded fastening structure connects reliably, and then can avoid equipment because the connecting piece is connected inequality and take place at least two fly leaf subassemblies and drop and then the security problem that arouses in the use. Further, the other end of the connecting piece is movably connected with the at least two movable plate assemblies, so that the at least two movable plate assemblies can be turned under the drive of the connecting shaft.

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 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 7 is:

1 a shell, 2 at least two movable plate assemblies, 3 a first air duct, 20 a movable plate, 22 a mounting seat, 220 a first mounting part, 222 a second mounting part, 5 a first movable plate assembly, 6 a second movable plate assembly, 7 an air guide assembly, 70 an air guide beam, 72 an air deflector, 74 an air inlet, 76 an oil baffle, 8 a second air duct, 10 a mounting plate, 40 a driving device, 42 a sliding block, 44 a supporting frame, 46 a driving assembly, 460 a sliding piece, 462 a driving rod assembly, 464 a connecting shaft, 4620 a first driving rod, 4622 a second driving rod, 4624 a third driving rod, 4626 a connecting shaft driving rod, 440 a supporting plate, 442 a fixing piece, 9 a communicating groove, 11 a mounting hole and 12 a connecting piece.

Detailed Description

In order that the above-recited objects, features and advantages of the present application will be more clearly understood, a more particular description of the application will be rendered by reference to the appended drawings and appended detailed description. It should be noted that, without conflict, the embodiments of the present application and 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 application, however, the present application may be practiced otherwise than as described herein, and therefore the scope of the present application is not limited to the specific embodiments disclosed below.

A range hood provided according to some embodiments of the present application is described below with reference to fig. 1 to 7.

Embodiment one:

as shown in fig. 1 and 7, an embodiment of the first aspect of the present application provides a range hood, including a housing 1, at least two movable plate assemblies 2, and a driving assembly, wherein the lower portion of the housing 1 is configured to have an air inlet, the at least two movable plate assemblies 2 are located below the air inlet, a first air duct 3 is formed between the at least two movable plate assemblies 2 and the housing 1, a portion of the driving assembly is fixedly mounted on the housing 1, a portion of the driving assembly is fixedly connected with the at least two movable plate assemblies 2, and the driving assembly is capable of driving the at least two movable plate assemblies 2 to move so as to form a second air duct 8 between the at least two movable plate assemblies 2 or close the second air duct 8.

The range hood provided by the embodiment of the invention comprises a shell 1, at least two movable plate assemblies 2 and a driving assembly, wherein the lower part of the shell 1 is provided with an air inlet, air flows enter the range hood through the air inlet, the at least two movable plate assemblies 2 are arranged below the air inlet and form a first air channel 3 with the shell 1, the driving assembly drives the at least two movable plate assemblies 2 to move, so that a second air channel 8 can be formed between the at least two movable plate assemblies 2, namely, the driving assembly drives the at least two movable plate assemblies 2 to move, a plurality of air inlet channels are formed between the at least two movable plate assemblies 2 and the shell 1 and between the at least two movable plate assemblies 2, namely, the second air channel 8 is additionally arranged on the basis of the first air channel 3, and air flows can enter the range hood through the plurality of air inlet channels, so that the aim of quickly exhausting oil fume is achieved. And then can be when cooking or oil smoke are great, through opening second wind channel 8 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 at least two movable plate assemblies 2 are driven to move, so that the second air duct 8 can be opened or closed between the at least two movable plate assemblies 2, a plurality of air inlet channels are formed, and the problem that the whole condensing plate structure is lifted to enlarge the air inlet channels for rapid smoking in the related art, so that the whole smoke ventilator structure is enlarged, and the production cost of the smoke ventilator is increased can be avoided.

It should be noted that, when the oil smoke generated by the jambs on two sides is small in the cooking process, the second air duct 8 is closed, that is, at least two movable plate assemblies 2 are located in the same plane, and at least two movable plate assemblies 2 are equivalent to form a condensation plate structure, an air flow channel, that is, the first air duct 3 is formed between the condensation plate structure and the shell 1, and the oil smoke or air flow enters the interior of the smoke machine through the first air duct 3. When the cooking or the oil smoke is bigger, the driving assembly drives the at least two movable plate assemblies 2 to open the second air duct 8, so that a plurality of air inlet channels are formed between the at least two movable plate assemblies 2 and the shell 1 and between the at least two movable plate assemblies 2, the number of the air inlet channels for the oil smoke or the air flow is increased, and 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, when the number of the driving assemblies is one, the driving assemblies can simultaneously drive at least two movable plate assemblies 2 to synchronously move so as to realize opening or closing of the second air duct 8. Further, the number of the driving components can be set to be two, so that the motion states of at least two movable plate components 2 can be respectively driven, and accordingly multiple variable air inlet channels can be increased by respectively driving each movable plate 20 component, and further the flexible control can be realized according to actual needs, and the use experience of a user is improved on the basis of achieving rapid oil smoke pumping and exhausting. Of course, the number of driving components may be plural to achieve the respective driving of the plural movable plate 20 components.

Further, the shell 1 comprises the guide plate, the guide plate is arranged below the air inlet in a surrounding mode and used for guiding oil smoke or air flow, when the second air duct 8 is opened, a plurality of air inlet channels are formed between the guide plate and at least two movable plate assemblies 2, and then when the oil smoke or air flow is large, the oil smoke or air flow can quickly enter the range hood through the plurality of air inlet channels, the oil smoke absorbing effect is guaranteed, the guide plate can be integrally formed with the shell 1, the mechanical property of the integrally formed structure is good, the production and the processing are convenient, and batch production are facilitated.

The shell 1 further comprises a filter screen structure, the filter screen structure is arranged at the air inlet and is fixedly arranged on the shell 1, when the second air duct 8 is closed, the oil smoke or air flow passes through the first air duct 3 and then enters the interior of the range hood after being filtered by the filter screen structure, so that the oil smoke or air flow is discharged after being filtered while the oil smoke is rapidly pumped and discharged. When the second air duct 8 is opened, the oil smoke or air flow is filtered by the first air duct 3 and the second air duct 8 through the filter screen structure and then enters the interior of the range hood.

Embodiment two:

on the basis of the above embodiment, further, the driving assembly drives the at least two movable plate assemblies 2 to move, and the plane where the at least two movable plate assemblies 2 are located at different working positions and the horizontal plane can form different angles, so that the second air duct 8 has different air inlet areas, and further, the driving assembly can be controlled to drive the working positions of the at least two movable plate assemblies 2 according to the size of the oil smoke, so that the air inlet area of the second air duct 8 can be adjusted, and the use experience of a user is enhanced when the oil smoke or the air flow is quickly sucked away.

It should be noted that, the multiple working positions of the at least two movable plate assemblies 2 include a limiting position, when the at least two movable plate assemblies 2 are located at the limiting position, the air inlet area of the second air duct 8 is the largest, that is, when the oil smoke or the air flow is large, the at least two movable plate assemblies 2 can be driven to move to the limiting position, so that the oil smoke or the air flow can quickly pass through the second air duct 8 and the first air duct 3 to enter the range hood, and the oil smoke is prevented from overflowing.

Embodiment III:

on the basis of any of the above embodiments, the specific structure of at least two movable plate assemblies 2 is defined, as shown in fig. 7, further, at least two movable plate assemblies 2 include a movable plate 20 and a mounting seat 22, wherein the mounting plate 10 is disposed on the movable plate 20, the mounting seat 22 includes a first mounting portion 220 and a second mounting portion 222, the first mounting portion 220 is movably connected with the housing 1, and the second mounting portion 222 is fixedly connected with the driving assembly.

In this embodiment, the at least two movable plate assemblies 2 include a movable plate 20 and a mounting seat 22, wherein the mounting seat 22 is fixedly mounted on the movable plate 20, the mounting seat 22 includes a first mounting portion 220 and a second mounting portion 222, the first mounting portion 220 is movably connected with the housing 1, and the second mounting portion 222 is fixedly connected with the driving assembly, that is, the driving assembly is connected with the housing 1 through the mounting seat 22 and the movable plate 20, so that under the driving of the driving assembly, the at least two movable plate assemblies 2 can be moved to increase the number of air inlet channels, and the purpose of quickly exhausting fume is achieved.

It should be noted that, the first mounting portion 220 is a circular hole to realize the movable connection between the mounting seat 22 and the housing 1, and the second mounting portion 222 is a square hole to cooperate with a part of the driving assembly to realize the fixed connection.

Embodiment four:

on the basis of any of the above embodiments, the specific number of at least two movable plate assemblies 2 is defined, as shown in fig. 1, 2, 3 and 4, further, at least two movable plate assemblies 2 include a first movable plate assembly 5 and a second movable plate assembly 6, and the driving assembly can drive the first movable plate assembly 5 and the second movable plate assembly 6 to move synchronously.

In this embodiment, the at least two movable plate assemblies 2 include a first movable plate assembly 5 and a second movable plate assembly 6, where the first movable plate assembly 5 and the second movable plate assembly 6 are disposed side by side left and right, and under the driving of the driving assembly, the first movable plate assembly 5 and the second movable plate assembly 6 can move synchronously, so as to open the second air duct 8, increase the number of air inlet channels, and the oil smoke or air flow can enter the oil smoke from a plurality of air inlet channels, so as to prevent the oil smoke from overflowing.

It should be noted that, one side of the first movable plate assembly 5, which is close to the second movable plate assembly 6, is turned upwards under the driving of the driving assembly, and meanwhile, one side of the second movable plate assembly 6, which is close to the first movable plate assembly 5, is turned upwards under the driving of the driving assembly, so as to form a second air duct 8, and further, the inclination direction of the first movable plate assembly 5 and the inclination direction of the second movable plate assembly 6 are respectively consistent with the inclination directions of the guide plates at the left side and the right side of the shell 1, so that the fume or the air flow can quickly enter the fume exhauster through a plurality of air inlet channels, and the fume absorbing effect when the fume or the air flow is large is further ensured.

In addition, the movable plate 20 is provided with a plurality of first threaded holes, the mounting seat 22 is provided with a plurality of second threaded holes corresponding to the first threaded holes one by one, the range hood further comprises a plurality of fasteners, and the fasteners respectively penetrate through the first threaded holes and the second threaded holes to fixedly connect the movable plate 20 with the mounting seat 22. Of course, the movable plate 20 and the mounting seat 22 may be fixedly connected by other connection methods, or the movable plate 20 and the mounting seat 22 may be integrally formed, so as to further ensure the connection strength of the movable plate 20 and the mounting seat 22.

Fifth embodiment:

on the basis of any of the above embodiments, as shown in fig. 1, 2, 3 and 4, the range hood further includes an air guiding assembly 7, where the air guiding assembly 7 is located between the first movable plate assembly 5 and the second movable plate assembly 6, and the air guiding assembly 7 is fixedly connected with the casing 1.

In this embodiment, the range hood further includes an air guide assembly 7 located between the first movable plate assembly 5 and the second movable plate assembly 6, when the second air duct 8 is closed, the air guide assembly 7, the first movable plate assembly 5 and the second movable plate assembly 6 together form a condensation plate structure, so that the condensation plate structure and the housing 1 form a first air duct 3, and the oil smoke or the air flow enters the interior of the range hood through the first air duct 3, and when the driving assembly drives the first movable plate assembly 5 and the second movable plate assembly 6 to turn upwards, a plurality of air inlet channels are formed between the first movable plate assembly 5 and the air guide assembly 7, and between the second movable plate assembly 6 and the air guide assembly 7, and the oil smoke or the air flow can enter the interior of the range hood from the plurality of air inlet channels rapidly, so as to achieve the purpose of rapidly exhausting the oil smoke.

Example six:

on the basis of the above embodiment, the specific structure of the air guiding assembly 7 is limited, as shown in fig. 3, further, the air guiding assembly 7 includes an air guiding beam 70 and air guiding plates 72, wherein the air guiding plates 72 are provided with air inlet holes 74, the number of the air guiding plates 72 is two, the two air guiding plates are respectively arranged at two sides of the air guiding beam 70, and when the first movable plate assembly 5 and the second movable plate assembly 6 move to the working positions, the air guiding plates 72 can be exposed to the second air duct 8 formed between the first movable plate assembly 5 and the second movable plate assembly 6.

In this embodiment, the air guiding assembly 7 includes an air guiding beam 70 and two air guiding plates 72, the two air guiding plates 72 are located at two sides of the air guiding beam 70 and are fixedly connected with the air guiding beam 70, when the driving assembly drives the first movable plate assembly 5 and the second movable plate assembly 6 to move to the working position, a plurality of air inlet channels are formed between the first movable plate assembly 5 and the air guiding plates 72 and between the second movable plate assembly 6 and the air guiding plates 72, so as to form a second air channel 8, and by increasing the number of the air inlet channels, oil smoke or air flow can be discharged quickly, and the oil smoke is prevented from overflowing.

Further, a plurality of air inlet holes 74 are respectively formed in the two air deflectors 72, when the first movable plate assembly 5 and the second movable plate assembly 6 move to the working position, the plurality of air inlet holes 74 in the two air deflectors 72 can be exposed in the second air duct 8, when the oil smoke or the air flow is large, the driving assembly drives the first movable plate assembly 5 and the second movable plate assembly 6 to move so as to form the second air duct 8, and the oil smoke or the air flow can enter the interior of the range hood through the plurality of air inlet holes 74 in the two air deflectors 72 so as to rapidly exhaust the smoke by increasing the number of the air inlet channels. In addition, the oil smoke or the air flow passes through the air inlets 74 on the air deflectors 72 on the left side and the right side, then passes through the filter screen structure, and enters the interior of the range hood, and the air deflectors 72 with the air inlets 74 can intercept a certain amount of oil drops in the oil smoke, so that the filtering effect of the oil smoke can be improved.

It should be noted that, the air guide beam 70 and the two air guide plates 72 may be integrally formed, so that the integrally formed structure has good mechanical properties, and the integrally formed structure is beneficial to production and processing, is convenient for batch production, and further reduces production cost.

Embodiment seven:

in a specific embodiment, as shown in fig. 7, further, one of the two air deflectors 72 is inclined toward the side where the first movable plate assembly 5 is located away from the end of the air guiding beam 70, and the other one of the two air deflectors 72 is inclined toward the side where the second movable plate assembly 6 is located away from the end of the air guiding beam 70.

In this embodiment, one of the air deflectors 72 is inclined to the side where the first movable plate assembly 5 is located, and the other air deflector 72 is inclined to the side where the second movable plate assembly 6 is located, so that the first movable plate assembly 5 and the second movable plate assembly 6 move to enable the second air duct 8 to be opened under the driving of the driving assembly, the two air deflectors 72 are exposed in the second air duct 8, and the inclined direction of the air deflectors 72 can facilitate oil smoke or air flow to enter the interior of the range hood through the air deflectors 72, so that the purpose of exhausting the oil smoke rapidly is further ensured.

It should be noted that the inclination angle of the two air deflectors 72 may be set according to actual needs.

Example eight:

on the basis of any of the above embodiments, as shown in fig. 7, further, an opening is formed between the air guiding beam 70 and the two air guiding plates 72, and the air guiding assembly 7 further includes: an oil deflector 76 is provided on the opening on the side close to the drive assembly.

In this embodiment, the oil baffle 76 is disposed on the opening formed between the air guide beam 70 and the two air deflectors 72 near one side of the driving assembly, that is, the driving assembly is shielded by disposing the oil baffle 76, so that when the range hood works, the oil baffle 76 can block the oil smoke from flowing to the driving assembly, and thus, the pollution of the oil smoke or the oil to the driving assembly can be avoided.

It should be noted that, the oil baffle 76 may be integrally formed with the air guiding beam 70 and the two air guiding plates 72, so as to facilitate processing and production on the basis of ensuring mechanical properties.

Example nine:

on the basis of any of the above embodiments, the specific structure of the driving assembly is defined, as shown in fig. 5 and 6, further, the housing 1 includes the mounting plate 10, the driving assembly includes the driving device 40, the sliding block 42, the supporting frame 44 and the transmission assembly 46, wherein the driving device 40 is disposed on the mounting plate 10, the sliding block 42 can reciprocate along the up-down direction under the driving of the driving device 40, the supporting frame 44 and the driving device 40 are correspondingly disposed on the other side of the mounting plate 10, the transmission assembly 46 is disposed on one side of the supporting frame 44, the transmission assembly 46 is fixedly connected with the sliding block 42, the transmission assembly 46 is fixedly connected with the first movable plate assembly 5 and the second movable plate assembly 6 respectively, the transmission assembly 46 can move under the driving of the sliding block 42, and the transmission assembly 46 can further drive the first movable plate assembly 5 and the second movable plate assembly 6 to move to open or close the second air duct 8.

In this embodiment, the driving assembly includes a driving device 40, a sliding block 42, a supporting frame 44 and a transmission assembly 46, where the driving device 40 is disposed on the mounting board 10, the sliding block 42 can move up and down within a preset range under the driving of the driving device 40, the transmission assembly 46 is fixedly connected with the sliding motion, that is, the driving device 40 drives the sliding block 42 to move up and down, the sliding motion drives the transmission assembly 46 to move, and the transmission assembly 46 is fixedly connected with the first movable plate assembly 5 and the second movable plate assembly 6, that is, the movement of the transmission assembly 46 can drive the first movable plate assembly 5 and the second movable plate assembly 6 to turn upwards to open the second air duct 8 or close the second air duct 8, so as to implement the driving and transmission process of the driving assembly. Further, the driving assembly further comprises a supporting frame 44, the supporting frame 44 is disposed on the other side of the mounting plate 10 corresponding to the driving device 40, and the transmission assembly 46 is connected with the supporting frame 44, so as to provide support for the transmission process of the transmission assembly 46.

It should be noted that, the driving device 40 may adopt a single motor driven push rod motor, where the push rod is fixedly connected with the slider 42, and the motor drives the push rod to make the slider 42 move up and down, so as to drive the transmission assembly 46 connected with the slider 42, so that one motor drives the two movable plates 20 to perform synchronous movement, thereby reducing the production cost of the whole mechanism.

In addition, two motors can be adopted to drive the first movable plate assembly 5 and the second movable plate assembly 6 respectively, so that a user can select to drive the first movable plate assembly 5 and/or the second movable plate assembly 6 to overturn according to actual needs, and thus an air inlet channel is increased, for example, for kitchen ware with two jambs, if the user adopts a unilateral jamb to fry dishes, the user can only open the movable plate 20 assembly corresponding to the jamb to overturn to increase the air inlet channel, namely, the user can flexibly select according to actual needs, and the user experience is further enhanced.

Example ten:

on the basis of the above embodiment, the specific structure of the transmission assembly 46 is limited, as shown in fig. 5 and 6, further, the transmission assembly 46 includes a sliding member 460, a transmission rod assembly 462 and a connecting shaft 464, where the sliding member 460 is fixedly connected with the sliding block 42, the sliding member 460 can slide on the supporting frame 44 under the driving of the sliding block 42, the transmission rod assembly 462 is movably connected with the sliding member 460 and the supporting frame 44, the transmission rod assembly 462 is fixedly connected with the first movable plate assembly 5 and the second movable plate assembly 6, one end of the connecting shaft 464 is fixedly connected with the transmission rod assembly 462, and the other end of the connecting shaft 464 is fixedly connected with the first movable plate assembly 5 or the second movable plate assembly 6, so that the transmission rod assembly 462 can drive the connecting shaft 464 to rotate to turn over the first movable plate assembly 5 or the second movable plate assembly 6.

In this embodiment, the transmission assembly 46 includes a sliding member 460, a transmission rod assembly 462 and a connecting shaft 464, where the sliding member 460 is fixedly connected with the sliding member 42, the sliding member 460 can slide on the supporting frame 44 under the driving of the sliding member 42, the transmission rod assembly 462 is respectively movably connected with the supporting frame 44 and the sliding member 460, and the transmission rod assembly 462 is respectively fixedly connected with the first movable plate assembly 5 and the second movable plate assembly 6 through the connecting shaft 464, the sliding member 42 moves up and down under the driving of the driving device 40, the sliding member 42 moves to drive the sliding member 460 to slide on the supporting frame 44, the sliding member 460 can drive the transmission rod assembly 462 to move, and the power is transmitted to the connecting shaft 464 by the transmission rod assembly 462, the connecting shaft 464 can rotate under the driving of the transmission rod assembly 462, and both ends of the connecting shaft 464 are respectively fixedly connected with the transmission rod assembly 462 and the first movable plate assembly 5 or the second movable plate assembly 6, i.e. the connecting shaft 464 rotates to drive the first movable plate assembly 5 or the second movable plate assembly 6 to turn up to open the second air duct 8, so that the first movable plate assembly 5 and the second movable plate assembly 6 can be driven to be opened, and the second air duct 8 can be closed, and the user can actually open and the second air duct 8 can be driven to move, and the second movable plate assembly 6 can be opened, and the user can be opened.

It should be noted that, the sliding member 460 includes a connecting arm fixedly connected with the sliding member 460 or integrally formed with the sliding member 460, and the connecting arm is fixedly connected with the sliding block 42, that is, the sliding member 460 is fixedly connected with the sliding block 42 through the connecting arm, so that the sliding member 460 can move up and down under the driving of the sliding block 42.

Example eleven:

on the basis of the above embodiment, the specific structure of the transmission rod assembly 462 is defined, as shown in fig. 5 and 6, further, the transmission rod assembly 462 includes a first transmission rod 4620, a second transmission rod 4622, a third transmission rod 4624 and a connection shaft transmission rod 4626, where one end of the first transmission rod 4620 is movably connected with the slider 460, one end of the second transmission rod 4622 is movably connected with the support frame 44, the first transmission rod 4620 is movably connected with the second transmission rod 4622, the other end of the second transmission rod 4622 is movably connected with the third transmission rod 4624, the third transmission rod 4624 is movably connected with the connection shaft transmission rod 4626, and the connection shaft transmission rod 4626 is fixedly arranged on the connection shaft 464.

In this embodiment, the transmission rod assembly 462 includes a first transmission rod 4620, a second transmission rod 4622, a third transmission rod 4624 and a connection shaft transmission rod 4626, wherein one end of the first transmission rod 4620 is movably connected with the sliding member 460, the other end of the first transmission rod 4620 is movably connected with the second transmission rod 4622, one end of the second transmission rod 4622 is movably connected with the supporting frame 44, the other end of the second transmission rod 4622 is movably connected with one end of the third transmission rod 4624, the other end of the third transmission rod 4624 is movably connected with one end of the connection shaft transmission rod 4626, and the other end of the connection shaft transmission rod 4626 is fixedly connected with the first movable plate assembly 5 or the second movable plate assembly 6 through the connection shaft 464. Through the above structure arrangement, the sliding part 460 moves up and down under the drive of the sliding block 42, the sliding part 460 moves up and down to drive the first transmission part, the first transmission part transmits power to the second transmission part, and as one end of the second transmission part is connected with the supporting frame 44, that is, the other end of the second transmission part moves up and down under the drive of the first transmission part, and transmits power to the third transmission part, the third transmission part drives the connecting shaft transmission rod 4626 to rotate and swing, and finally the first movable plate assembly 5 or the second movable plate assembly 6 is turned over.

It should be noted that, the two ends of the connecting shaft 464 are provided with mounting blocks, one end of the connecting shaft driving rod 4626 connected with the connecting shaft 464 is provided with a connecting hole, the connecting hole is adapted to the mounting blocks, that is, the mounting blocks at the other end of the connecting shaft 464 are fixedly mounted in the connecting hole to realize the fixed connection of the connecting shaft 464 and the connecting shaft driving rod 4626, and the mounting blocks at the other end of the connecting shaft 464 are adapted to the second mounting portion 222, so that the other end of the connecting shaft 464 can be fixedly connected with the first movable plate assembly 5 or the second movable plate assembly 6, and then the first movable plate assembly 5 or the second movable plate assembly 6 can move to open or close the second air duct 8 under the driving of the connecting shaft 464. Wherein the second mounting portion 222 may be a hole that mates with the mounting block.

In addition, the axis of the connecting shaft 464 coincides with the axis of the first mounting portion 220, that is, the front and rear ends of the first movable plate assembly 5 or the second movable plate assembly 6 are in the same horizontal plane, that is, the front and rear ends of the first movable plate assembly 5 or the second movable plate assembly 6 are equidistant from the top of the housing 1, and the front and rear ends of the first movable plate assembly 5 or the second movable plate assembly 6 can rotate around the axis of the connecting shaft 464 under the driving of the driving device 40, so that the occurrence of a fault caused by inconsistent rotation axes of the front and rear ends of the first movable plate assembly 5 or the second movable plate assembly 6 in the using process of the device is avoided, and thus, the stable operation of the device can be ensured.

Embodiment twelve:

on the basis of any of the above embodiments, the specific structure of the supporting frame 44 is defined, as shown in fig. 5 and 6, further, the supporting frame 44 includes a supporting plate 440, a fixing member 442, and a sliding portion, where the two supporting plates 440 are disposed opposite to each other and are formed with a avoiding opening, the fixing member 442 is fixedly connected with the two supporting frames 44 respectively, the sliding portion is formed on the supporting plate 440, and the sliding member 460 can slide on the sliding portion.

In this embodiment, the supporting frame 44 includes a supporting plate 440, a fixing member 442, and a sliding portion, where the two supporting plates 440 are disposed opposite to each other and are formed with a avoiding opening, the fixing member 442 is fixedly connected with the two supporting plates 44, and the sliding portions are formed on the two supporting plates 440, respectively, and the sliding member 460 can slide on the sliding portion, so that the sliding member 460 can slide up and down on the sliding portion under the driving of the sliding block 42. It should be noted that, the sliding grooves are provided at two ends of the sliding member 460, the sliding portion is a sliding protrusion, the sliding grooves and the sliding protrusions cooperate to realize the up-and-down sliding of the sliding member 460 on the sliding portion, in addition, the two ends of the sliding member 460 can be provided as the sliding protrusions, the sliding portion is the sliding grooves, and then the up-and-down sliding of the sliding member 460 is realized through the cooperation of the sliding protrusions and the sliding grooves, which is specifically set according to the actual needs.

It should be noted that, the sliding portion may be integrally formed with the support frame 44, so as to ensure the mechanical properties of the support frame 44.

As shown in fig. 7, further, the range hood further includes a communication slot 9 and two mounting holes 11, the communication slot 9 is formed on the mounting plate 10, the sliding block 42 passes through the communication slot 9 and the avoiding opening to be fixedly connected with the sliding member 460, the number of the mounting holes 11 is two, the two mounting holes 11 are respectively located at two sides of the driving device 40, and the connecting shaft 464 can rotate in the mounting holes 11.

In this embodiment, the range hood further includes a communication slot 9 and two mounting holes 11, the two mounting holes 11 are respectively disposed on two sides of the communication slot 9, and the slider 42 can pass through the communication slot 9 and the avoidance opening of the support frame 44 to be fixedly connected with the slider 460, so as to realize the driving process of the driving device 40 and ensure the stable operation of the equipment. Further, the connecting shaft 464 can rotate in the mounting hole 11, so that the connecting shaft 464 can rotate in the mounting hole 11 under the driving of the transmission assembly 46 to drive the first movable plate assembly 5 or the second movable plate assembly 6 to turn over to open or close the second air duct 8.

It should be noted that, circular bosses may be disposed on two sides of the mounting hole 11 on the mounting plate 10, and the connection shaft 464 is mounted on an inner surface of the circular boss through a surface circumferential surface, and is fixedly connected with the connection shaft transmission rod 4626 through the circular boss on the other side of the mounting hole 11.

Embodiment thirteen:

on the basis of any of the above embodiments, as shown in fig. 3 and 7, further, the range hood further includes a connecting member 12, one end of the connecting member 12 is fixedly connected with the casing 1, and the other end of the connecting member 12 is movably connected with at least two movable plate assemblies 2.

In this embodiment, the range hood further includes a connecting piece 12, one end of the connecting piece 12 is fixedly mounted on the housing 1, specifically, one end of the connecting piece 12 can be fixedly connected with the housing 1 through threaded connection, the threaded fastening structure is reliably connected, and further, the safety problem caused by that at least two movable plate assemblies 2 fall down due to the fact that the connecting piece 12 is not firmly connected in the use process of the range hood can be avoided. Further, the other end of the connecting piece 12 is movably connected with at least two movable plate assemblies 2, so that the at least two movable plate assemblies 2 can be turned under the drive of the connecting shaft 464.

It should be noted that, the end of the connecting piece 12 movably connected with the at least two movable plate assemblies 2 is further provided with a circular connecting hole, the circular connecting hole is matched with the first mounting portion 220, the first mounting portion 220 can be a circular hole matched with the circular connecting hole, the range hood comprises a mounting piece, and the mounting piece respectively penetrates through the circular connecting hole and the circular hole to movably connect the at least two movable plate assemblies 2 with the connecting piece 12.

Further, a control panel can be arranged on the shell 1 of the range hood, the control panel is connected with the range hood, specifically, two gears comprising a low gear and a high gear can be arranged on the control panel, wherein the low gear is a state of closing the second air duct 8, the high gear is a state when at least one movable plate 20 component is turned to a limit position, a user can open or close the second air duct 8 by adjusting the high and low gears according to actual needs in a cooking process, further, the second air duct 8 can be closed when oil smoke or air flow is small, and the second air duct 8 is opened to realize quick oil smoke exhaust when the oil smoke or air flow is large, so that the oil smoke is prevented from overflowing. 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 detecting device such as a sensor and a smoke sensor probe can be arranged in the first movable plate assembly 5, the second movable plate assembly 6 and the range hood, and the detecting device such as the smoke sensor probe can detect the size or the concentration of the smoke or the air flow, the range hood further comprises a controller, a memory and a processor, the processor can be configured to realize that when the detecting device detects that the smoke or the concentration is large, a detection signal is sent to the controller, the controller is electrically connected with the driving assembly, the controller controls the driving device 40 to drive the first movable plate assembly 5 or the second movable plate assembly 6 to turn over so as to open the second air duct 8, so that the smoke can quickly enter the range hood, when the detecting device detects that the smoke or the smoke is small, the controller controls the driving device 40 to not drive the first movable plate assembly 5 or the second movable plate assembly 6, or the controller controls the driving device 40 to drive the first movable plate assembly 5 or the second movable plate assembly 6 to move from the position of opening the second air duct 8 to the closed position of the second air duct 8, and the second air duct 8 is controlled to move from the closed state to the open state of 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 (9)

1. A range hood, comprising:

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

the at least two movable plate assemblies are positioned below the air inlet, and a first air channel is formed between the at least two movable plate assemblies and the shell;

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

the at least two fly leaf assemblies comprise:

a movable plate;

the mounting seat is arranged on the movable plate and comprises a first mounting part and a second mounting part,

the first installation part is movably connected with the shell, and the second installation part is fixedly connected with the driving assembly;

the at least two movable plate assemblies comprise a first movable plate assembly and a second movable plate assembly;

wind-guiding subassembly, wind-guiding subassembly includes: an air guide beam; the air guide plate is provided with air inlet holes, the number of the air guide plates is two, the air guide plates are respectively arranged on two sides of the air guide beam, and when the first movable plate assembly and the second movable plate assembly move to the working positions, the air guide plate can be exposed out of the second air channel formed between the first movable plate assembly and the second movable plate assembly;

The wind-guiding subassembly still includes: the oil baffle is arranged on an opening formed between the air guide beam and the two air deflectors, which is close to one side of the driving assembly, and is used for shielding the driving assembly so as to prevent oil smoke from flowing to the driving assembly.

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

the at least two movable plate assemblies are provided with a plurality of working positions, and angles formed by the at least two movable plate assemblies and a horizontal plane are unequal when the at least two movable plate assemblies are positioned at different working positions.

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

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

4. The range hood according to claim 3, wherein,

the air guide assembly is located between the first movable plate assembly and the second movable plate assembly, and is fixedly connected with the shell.

5. A range hood according to claim 3, wherein the housing comprises a mounting plate and the drive assembly comprises:

the driving device is arranged on the mounting plate;

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

The support frame is arranged on the other side of the mounting plate corresponding to the driving device;

the transmission assembly is arranged on one side of the support frame and is fixedly connected with the sliding block, the transmission assembly is respectively fixedly connected with the first movable plate assembly and the second movable plate assembly, the transmission assembly can move under the driving of the sliding block, and the transmission assembly 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.

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

the sliding piece is fixedly connected with the sliding block and can slide on the supporting frame under the driving of the sliding block;

the transmission rod assembly is respectively and movably connected with the sliding piece and the supporting frame, and is respectively and fixedly connected with the first movable plate assembly and the second movable plate assembly;

the connecting shaft, the one end of connecting shaft with transfer line subassembly fixed connection, the other end of connecting shaft with first fly leaf subassembly or second fly leaf subassembly fixed connection, the transfer line subassembly can drive the connecting shaft rotates so that first fly leaf subassembly or second fly leaf subassembly upset.

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

the first transmission rod is movably connected with the sliding piece;

one end of the second transmission rod is movably connected with the support frame, and the first transmission rod is movably connected with the second transmission rod;

the other end of the second transmission rod is movably connected with the third transmission rod;

the connecting shaft transmission rod is movably connected with the third transmission rod, and the connecting shaft transmission rod is fixedly arranged on the connecting shaft.

8. The range hood of claim 6, wherein the range hood further comprises a hood body,

the support frame includes:

the number of the supporting plates is two, the two supporting plates are oppositely arranged, and an avoidance opening is formed between the two supporting plates;

the fixing piece is fixedly connected with the two supporting frames respectively;

a sliding portion formed on the support plate, the sliding member being slidable on the sliding portion;

the range hood further includes:

the communication groove is formed in the mounting plate, and the sliding block penetrates through the communication groove and the avoidance opening to be fixedly connected with the sliding piece;

The number of the mounting holes is two, the two mounting holes are respectively positioned on two sides of the driving device, and the connecting shaft can rotate in the mounting holes.

9. The range hood of any one of claims 1 to 8, further comprising:

the connecting piece, the one end of connecting piece with casing fixed connection, the other end of connecting piece with at least two fly leaf subassemblies swing joint.