CN108980939B

CN108980939B - Smoke exhaust ventilator

Info

Publication number: CN108980939B
Application number: CN201811041372.3A
Authority: CN
Inventors: 林文灿; 季俊生; 全先轲
Original assignee: Foshan Shunde Midea Washing Appliances Manufacturing Co Ltd
Current assignee: Foshan Shunde Midea Washing Appliances Manufacturing Co Ltd
Priority date: 2018-09-07
Filing date: 2018-09-07
Publication date: 2021-02-26
Anticipated expiration: 2038-09-07
Also published as: CN108980939A

Abstract

The invention discloses a range hood, comprising: a tank assembly having a fume inlet; the comprehensive screen is used for opening and closing the oil fume inlet; actuating mechanism, actuating mechanism install in the box subassembly, full screen install in actuating mechanism, actuating mechanism drives full screen for the box subassembly goes up and down and overturns, actuating mechanism includes: one end of the driving rod is pivotally arranged on the box body assembly, and the other end of the driving rod is pivotally arranged on the full-face screen; and the driving device is hinged with the driving rod and drives the driving rod to rotate so as to drive the comprehensive screen to lift and overturn. The range hood provided by the embodiment of the invention has the advantages of good consistency of the whole structure, attractive appearance, convenience in cleaning, no obstruction to the sight of a user in the using process, no obstruction to the user in space, good user experience and the like.

Description

Smoke exhaust ventilator

Technical Field

The invention relates to the technical field of smoke exhaust, in particular to a range hood.

Background

The glass panel of range hood among the correlation technique adopts the structure of part screen or polylith screen concatenation usually, the during operation need overturn the glass panel in order to open the smoking mouth, can shelter from user's sight after considering the panel upset, and can cause certain hindrance to the user on the space, consequently only overturn one or several of them screens, there are poor and gap in section for this kind of range hood's glass panel, the uniformity of complete machine is relatively poor, it is also comparatively inconvenient to wash, and the solution that only overturns the glass panel can not be fine shelters from the problem of user's sight.

Disclosure of Invention

The present invention is directed to solving at least one of the problems of the prior art. Therefore, the range hood provided by the invention has the advantages of good overall structure consistency, attractive appearance, convenience in cleaning, good user experience and the like.

The range hood according to the embodiment of the invention comprises: a tank assembly having a fume inlet; the comprehensive screen is used for opening and closing the oil fume inlet; actuating mechanism, actuating mechanism install in the box subassembly, full screen install in actuating mechanism, actuating mechanism drives full screen for the box subassembly goes up and down and overturns, actuating mechanism includes: one end of the driving rod is pivotally arranged on the box body assembly, and the other end of the driving rod is pivotally arranged on the full-face screen; and the driving device is hinged with the driving rod and drives the driving rod to rotate so as to drive the comprehensive screen to lift and overturn.

The range hood provided by the embodiment of the invention has the advantages of good consistency of the whole structure, attractive appearance, convenience in cleaning, no obstruction to the sight of a user in the using process, no obstruction to the user in space, good user experience and the like.

In addition, the range hood according to the above embodiment of the present invention may further have the following additional technical features:

according to some embodiments of the invention, the active lever comprises: one end of the straight line section is pivotally arranged on the box body assembly, and the driving device is hinged with the other end of the straight line section; one end of the first arc segment is connected to the other end of the straight line segment, and the opening of the first arc segment faces the straight line segment; and one end of the second arc segment is connected to the other end of the first arc segment, the other end of the second arc segment is pivotally arranged on the full-face screen, and the opening of the first arc segment faces back to the straight line segment.

According to some embodiments of the invention, the drive mechanism further comprises: and one end of the driven rod is hinged to the box body assembly, and the other end of the driven rod is hinged to the full-face screen.

According to some embodiments of the invention, the box assembly has a baffle plate, the fume inlet is provided in the baffle plate, the one end of the straight section is pivotally mounted to the baffle plate, and the one end of the driven lever is hinged to the baffle plate.

According to some embodiments of the invention, the full-face screen has a connecting plate to which the other end of the second arc segment is pivotably mounted, and the other end of the driven lever is hinged to the connecting plate.

According to some embodiments of the invention, the connection plate comprises: the connecting straight plate is connected to the inner side surface of the full screen; the first bending part extends from the edge of the connecting straight plate positioned at the outer side along the direction towards the box body assembly, and the other end of the second arc line segment is pivotally arranged on the first bending part; the second bending part extends from the edge of the connecting straight plate positioned on the inner side in the direction towards the box body assembly, and the other end of the driven rod is hinged to the second bending part; the joint of the second arc line segment and the first bending part is higher than the joint of the driven rod and the second bending part.

According to some embodiments of the invention, the deflector is provided with a bracket to which the one end of the straight section is pivotably mounted, and the one end of the driven lever is hinged to the bracket.

According to some embodiments of the invention, the bracket has two connecting lugs arranged oppositely, and the one end of the driven lever is hinged between the two connecting lugs.

According to some embodiments of the present invention, a portion of the bracket between the two connection lugs is configured with a first fitting hole penetrating through the bracket, and the guide plate has a second fitting hole corresponding to the first fitting hole, the second fitting hole penetrating through the guide plate so that the driven rod is fitted to the two connection lugs through the second fitting hole and the first fitting hole in this order.

According to some embodiments of the invention, the guide plate is provided with a third assembly hole penetrating through the guide plate, and the active rod is hinged with the driving device through the third assembly hole.

According to some embodiments of the invention, the deflector is provided with a rotating support to which the driving means are hinged.

According to some embodiments of the invention, during extension of the drive means, the drive means rotates relative to the rotatable support in a direction away from the support; during the shortening process of the driving device, the driving device rotates relative to the rotating support in the direction towards the support.

According to some embodiments of the present invention, the driving mechanism further includes two driving levers, the two driving levers are respectively disposed adjacent to left and right sides of the full-face screen, and the driving mechanism further includes: and two ends of the synchronizing rod are respectively connected with the two driving rods so as to enable the two driving rods to synchronously rotate.

According to some embodiments of the invention, the drive mechanism further comprises: the buffer cylinder is pivotally arranged on the box body assembly, and the driving device and the buffer cylinder are respectively hinged to the two driving rods.

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 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 is a schematic structural diagram of a range hood according to an embodiment of the invention;

fig. 2 is a schematic structural diagram of a range hood according to an embodiment of the invention;

fig. 3 is a schematic view of a driving mechanism of a range hood according to an embodiment of the invention driving a full screen to be opened;

fig. 4 is a schematic view of a driving mechanism of a range hood according to an embodiment of the invention driving a full screen to be opened;

fig. 5 is a partially enlarged view of a portion a in fig. 4.

Reference numerals:

a range hood 100;

a case assembly 10; a baffle 11; a bracket 111; a connection lug 1111; a first mounting hole 1112; the rotating support 1113; a fixing portion 1114; a third fitting hole 112;

a drive mechanism 20; a driving lever 21; straight line segment 211; the connection hole 2111; pivot hole 2112; a first arc segment 212; a second arc segment 213; a drive device 22; a driven lever 23; a synchronizing lever 24; a cushion cylinder 25;

a full screen 30; a connecting plate 31; a connecting straight plate 311; a first bent portion 312; a second bent portion 313;

a rack assembly 40; and an air outlet 41.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.

In the description of the present invention, it is to be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are used merely for convenience of description and for simplicity of description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, are not to be construed as limiting the present invention. Furthermore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

A range hood 100 according to an embodiment of the present invention is described below with reference to fig. 1 to 5.

As shown in fig. 1 and 2, a range hood 100 according to an embodiment of the present invention includes: a case assembly 10, a full-face screen 30 and a drive mechanism 20.

Wherein, box subassembly 10 has the oil smoke import (not shown in the figure), and comprehensive screen 30 is used for opening and closing the oil smoke import, and actuating mechanism 20 is installed in box subassembly 10, and comprehensive screen 30 is installed in actuating mechanism 20, and actuating mechanism 20 drives full screen 30 and goes up and down and overturn for box subassembly 10.

Particularly, the oil smoke import is located on the antetheca of box subassembly 10, the during operation oil smoke gets into in box subassembly 10 by the oil smoke import, the antetheca of box subassembly 10 is by the lower supreme setting that slopes forward, actuating mechanism 20 locates in box subassembly 10 and links to each other with comprehensive screen 30, actuating mechanism 20 is used for driving comprehensive screen 30 and opens and close the oil smoke import, as shown in fig. 1, when comprehensive screen 30 closes the oil smoke import, comprehensive screen 30 lid is located the antetheca of box subassembly 10 and is hugged closely the antetheca of box subassembly 10, as shown in fig. 2, when comprehensive screen 30 opens the oil smoke import completely, actuating mechanism 20 drives comprehensive screen 30 and upwards removes and overturn certain angle forward for box subassembly 10, the region that forms between comprehensive screen 30 and the oil smoke import has better cigarette effect of holding together like this, thereby can promote the smoking effect.

It should be noted that the full-face screen 30 is constructed by a complete glass panel, and is different from the range hood 100 in the related art that adopts a structure formed by splicing a part of screens or a plurality of split screens, and the range hood 100 in the embodiment of the present invention moves and turns over the full-face screen 30 in the process of opening and closing the oil smoke inlet, so that the overall consistency is better, and a good visual experience can be provided for a user.

As shown in fig. 3 and 4, the drive mechanism 20 includes: an active lever 21 and a drive device 22. One end of the driving rod 21 is pivotally mounted on the box assembly 10, the other end of the driving rod is pivotally mounted on the full-face screen 30, the driving device 22 is hinged to the driving rod 21, and the driving rod 21 is driven by the driving device 22 to rotate so as to drive the full-face screen 30 to lift and turn. Specifically, one end of the driving rod 21 is hinged to the box assembly 10, the other end of the driving rod 21 is hinged to the full-face screen 30, and one point on the driving rod 21 is hinged to the driving device 22, so that the driving device 22 can drive the driving rod 21 to rotate around the joint of the driving rod 21 and the box assembly 10, and the driving rod 21 drives the full-face screen 30 to move, so that the full-face screen 30 can be lifted and turned relative to the box assembly 10, and the oil smoke inlet can be opened or closed.

According to the range hood 100 disclosed by the embodiment of the invention, the full screen 30 is adopted to open and close the air inlet, so that the range hood 100 is different from a structure in which partial screens or a plurality of split screens are spliced in the related art, the consistency of the whole structure is better, the end surface difference and gaps among a plurality of split screens can be eliminated, the whole range hood is more attractive, the full screen 30 and the whole range hood 100 can be conveniently cleaned, and the user experience is better. In addition, the driving rod 21 is driven by the driving device 22 to rotate relative to the box assembly 10 so as to drive the whole full screen 30 to ascend, descend and overturn relative to the box assembly 10, and the range hood 100 is different from a structure in which a glass panel can only overturn in the related art.

Therefore, the range hood 100 according to the embodiment of the invention has the advantages of good consistency of the whole structure, beautiful appearance, convenient cleaning, no obstruction to the sight of the user in the using process, no obstruction to the user in space, good user experience and the like.

In some embodiments of the present invention, as shown in fig. 4 and 5, the active lever 21 includes: a straight line segment 211, a first arc segment 212, and a second arc segment 213.

One end of the straight line segment 211 can be pivotally mounted on the box body assembly 10, the driving device 22 is hinged to the other end of the straight line segment 211, one end of the first arc segment 212 is connected to the other end of the straight line segment 211, the opening of the first arc segment 212 faces towards the straight line segment 211, one end of the second arc segment 213 is connected to the other end of the first arc segment 212, the other end of the second arc segment 213 can be pivotally mounted on the full-face screen 30, and the opening of the first arc segment 212 faces away from the straight line segment 211.

Specifically, the straight line segment 211 is provided with a connecting hole 2111 and a pivot hole 2112, the connecting hole 2111 and the pivot hole 2112 are respectively arranged adjacent to two ends of the straight line segment 211, the straight line segment 211 is hinged to the box assembly 10 through the connecting hole 2111, a shaft pin penetrates through the pivot hole 2112 and is connected with the driving device 22 so that the straight line segment 211 is hinged to the driving device 22, the first arc segment 212 extends from one end, adjacent to the pivot hole 2112, of the straight line segment 211 towards the full-face screen 30, the opening direction of the first arc segment 212 faces the straight line segment 211, the circle center of the first arc segment 212 is located above the first arc segment 212, one end of the second arc segment 213 is connected to the first arc segment 212, the second arc segment 213 is tangent to the first arc segment 212, and the other end of the second arc segment. Therefore, the moment applied to the driving rod 21 by the driving device 22 is large, the rotating effect of the driving rod 21 relative to the box body assembly 10 is good, the overall structural strength of the driving rod 21 is good, and the driving rod 21 is not easy to break.

In some alternative examples of the present invention, as shown in fig. 4 and 5, the driving mechanism 20 further includes: and one end of the driven rod 23 is hinged to the box body assembly 10, and the other end of the driven rod 23 is hinged to the full-face screen 30. That is, one end of the follower lever 23 is connected to the case assembly 10 and the follower lever 23 is rotatable with respect to the case assembly 10, and the other end of the follower lever 23 is connected to the full panel 30 and the follower lever 23 is rotatable with respect to the full panel 30.

According to some alternative embodiments of the present invention, as shown in fig. 3, the box assembly 10 has a baffle plate 11, the fume inlet is provided on the baffle plate 11, one end of the straight section 211 is pivotally mounted on the baffle plate 11, and one end of the driven rod 23 is hinged to the baffle plate 11. Specifically, guide plate 11 forms in the antetheca of box subassembly 10, and guide plate 11 is used for carrying out the water conservancy diversion to the oil smoke of interception, and the one end of straightway 211 can be installed in guide plate 11 side surface back to full screen 30 pivotally, and the one end of driven lever 23 articulates in guide plate 11 side surface back to full screen 30, like this, can avoid straightway 211 and guide plate 11 and driven lever 23 and guide plate 11 junction and oil smoke direct contact, is favorable to the junction to keep clean.

According to some alternative embodiments of the present invention, as shown in fig. 4 and 5, the full-face screen 30 has a link plate 31, the other end of the second arc segment 213 is pivotally mounted to the link plate 31, and the other end of the driven lever 23 is hinged to the link plate 31. Specifically, the connection plate 31 is provided on the inner side surface of the full panel 30 facing the cabinet assembly 10, so that the assembly of the driving link 21 with the full panel 30 and the assembly of the driven link 23 with the full panel 30 are simple.

In some specific examples of the invention, shown with continued reference to fig. 4 and 5, the connection plate 31 comprises: connecting the straight plate 311, the first bent portion 312 and the second bent portion 313.

The connecting straight plate 311 is connected to the inner side surface of the full-face screen 30, the first bending portion 312 extends from the edge of the connecting straight plate 311 located on the outer side towards the direction of the box assembly 10, the other end of the second arc line segment 213 is pivotally mounted on the first bending portion 312, the second bending portion 313 extends from the edge of the connecting straight plate 311 located on the inner side towards the direction of the box assembly 10, the other end of the driven rod 23 is hinged to the second bending portion 313, and the connection position of the second arc line segment 213 and the first bending portion 312 is higher than the connection position of the driven rod 23 and the second bending portion 313.

Specifically, the first bending portion 312 and the second bending portion 313 are respectively connected to the left and right sides of the connecting straight plate 311, the connection between the second arc segment 213 and the first bending portion 312 and the connection between the driven rod 23 and the second bending portion 313 are vertically staggered, and the connection between the driven rod 23 and the box assembly 10 and the connection between the straight segment 211 and the box assembly 10 are also vertically staggered, so that when the driving device 22 drives the driving rod 21 to rotate, the entire panel 30 drives the driven rod 23 to rotate, the connection between the second arc segment 213 and the first bending portion 312 rotates around the connection between the straight segment 211 and the box assembly 10, and meanwhile, the connection between the driven rod 23 and the second bending portion 313 rotates around the connection between the driven rod 23 and the box assembly 10, and different motion trajectories at the connection between the second arc segment 213 and the first bending portion 312 and at the connection between the driven rod 23 and the second bending portion 313 are coupled, defining a full screen 30 path of movement for raising and lowering and tilting relative to the cabinet assembly 10.

In some embodiments of the invention, as shown in fig. 3-5, the baffle 11 is provided with a bracket 111, one end of the straight section 211 is pivotally mounted to the bracket 111, and one end of the driven lever 23 is hinged to the bracket 111. Specifically, the bracket 111 is disposed on the inner side surface of the guide plate 11 facing away from the full-face screen 30, and the straight section 211 and the driven rod 23 are both hinged to the mounting bracket 111, so that the driving mechanism 20 is convenient to mount and dismount on the guide plate 11.

According to some specific examples of the present invention, as shown in fig. 5, the bracket 111 has two coupling lugs 1111 disposed opposite to each other, and one end of the driven lever 23 is hinged between the two coupling lugs 1111. Specifically, two connect the journal stirrup 1111 parallel arrangement and be equipped with the hinge hole on every connect the journal stirrup 1111, the one end of driven lever 23 is located between two connect the journal stirrup 1111 and cooperatees with two hinge holes.

Alternatively, referring to the embodiment shown in fig. 3, a portion of the bracket 111 between the two connection lugs 1111 is configured with a first fitting hole 1112 penetrating through the bracket 111, and the baffle plate 11 has a second fitting hole (not shown in the drawings) corresponding to the first fitting hole 1112, the second fitting hole penetrating through the baffle plate 11 so that the driven rod 23 is fitted with the two connection lugs 1111 through the second fitting hole and the first fitting hole 1112 in sequence.

Further, with continued reference to the embodiment shown in fig. 3, the baffle 11 is provided with a third assembly hole 112 penetrating through the baffle 11, and the active rod 21 is hinged to the driving device 22 through the third assembly hole 112.

In some embodiments of the invention, the deflector 11 is provided with a rotary support 1113 and the actuating device 22 is hinged to the rotary support 1113. As shown in fig. 3 to 5, the rotating support 1113 is disposed on an inner side surface of the baffle 11 facing away from the full screen 30, and the driving device 22 is hinged to the baffle 11 so that the driving device 22 can rotate around the rotating support 1113 during the expansion and contraction process.

Further, during the process of extending the driving device 22, the driving device 22 rotates relative to the rotating support 1113 in the direction away from the bracket 111, and the full-face screen 30 moves in the direction toward the flow guide plate 11 to close the lampblack inlet; during the shortening of the driving device 22, the driving device 22 rotates relative to the rotating support 1113 in the direction toward the bracket 111, and the full-face screen 30 moves in the direction away from the deflector 11 to open the soot inlet.

Optionally, the drive means 22 is a retractable electric push rod. Specifically, the electric push rod comprises a motor and a push rod, wherein the motor is electrically connected with the push rod to drive the push rod to move along the axial direction of the push rod.

According to some embodiments of the present invention, as shown in fig. 3 and 4, there are two active levers 21, the two active levers 21 are respectively disposed adjacent to left and right sides of the full screen 30, and the driving mechanism 20 further includes a synchronization lever 24, and both ends of the synchronization lever 24 are respectively connected to the two active levers 21 to enable the two active levers 21 to rotate synchronously.

Specifically, the synchronizing bar 24 is disposed in a direction parallel to the length direction of the air deflector 11 (i.e., the left-right direction in the drawing), the synchronizing bar 24 can pivot around the central axis thereof, the two active bars 21 are respectively disposed at two ends of the synchronizing bar 24, each active bar 21 is connected to an end of the synchronizing bar 24, when the driving device 22 drives one of the two active bars 21 to rotate, the active bar 21 drives the synchronizing bar 24 to rotate so as to rotate the other active bar 21, that is, the two active bars 21 keep rotating synchronously, so that the driving mechanism 20 has a better driving effect on the entire screen 30.

Alternatively, with continued reference to the embodiment shown in fig. 3 and 4, the deflector 11 is provided with two brackets 111, the two brackets 111 are respectively provided adjacent to both ends of the synchronizing bar 24, each bracket 111 is provided with a mounting groove (not shown in the drawings) for mounting the synchronizing bar 24 and a fixing portion 1114, the fixing portion 1114 pivotably fixes the synchronizing bar 24 in the mounting groove, and an end portion of the synchronizing bar 24 is exposed from the outside of the bracket 111 to be connected with the active bar 21.

Alternatively, with continued reference to the embodiment shown in fig. 3 and 4, there are two driven levers 24, two driven levers 24 being provided adjacent to the left and right sides of the full panel 30, respectively, and each driven lever 24 having one end hinged to the full panel 30 and the other end hinged to the deflector 11.

Further, the driving mechanism 20 further comprises a buffer cylinder 25, the buffer cylinder 25 is pivotally mounted on the box assembly 10, and the driving device 22 and the buffer cylinder 25 are respectively hinged to the two driving rods 21. Specifically, cushion cylinder 25 is scalable in its axial, and cushion cylinder 25 and drive arrangement 22 are neighbouring guide plate 11's the left and right sides setting respectively, and drive arrangement 22's one end articulates in guide plate 11 and the other end articulates in one of them initiative pole 21, and cushion cylinder 25's one end articulates in guide plate 11 and the other end articulates in another initiative pole 21, like this, can guarantee that the speed of full screen 30 at the in-process that opens and shuts is comparatively steady, avoids full screen 30 and box subassembly 10 to take place to collide with.

According to some embodiments of the present invention, when the driving device 22 and the buffer cylinder 25 are extended to the maximum length, the full-face screen 30 closes the soot inlet; when the driving device 22 and the buffer cylinder 25 are contracted to the minimum length, the full-face screen 30 fully opens the lampblack inlet. Since the synchronous rod 24 is connected between the two active rods 21, the movement of the driving device 22 and the buffer cylinder 25 is also kept synchronous, and it should be noted that the full-face screen 30 fully opens the oil smoke inlet means that the full-face screen 30 rises to the highest point and turns to the maximum angle.

According to some embodiments of the present invention, the range hood 100 further includes a frame assembly 40 and a fan, the frame assembly 40 is disposed on the upper surface of the box assembly 10 and has an air outlet 41, and the fan is disposed in the frame assembly 40 and/or the box assembly 10 and is respectively communicated with the oil smoke inlet and the air outlet 41. It is understood that the blower may be located within the rack assembly 40, within the box assembly 10, or within both the rack assembly 40 and the box assembly 10.

According to some embodiments of the present invention, range hood 100 is a side draft range hood 100. The side-draft range hood 100 has a good range hood effect, and a user does not touch the cooker head during cooking and is not obstructed in space.

Other constructions and operations of the range hood 100 according to embodiments of the present invention are known to those of ordinary skill in the art and will not be described in detail herein.

In the description herein, references to the description of the terms "some embodiments," "exemplary embodiments," "examples," "specific examples," or "some examples," etc., 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 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.

While embodiments of the invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A range hood, comprising:

the front wall of the box body assembly extends forwards from bottom to top, and is provided with a lampblack inlet;

the comprehensive screen is used for opening and closing the oil fume inlet;

actuating mechanism, actuating mechanism install in the box subassembly, full screen install in actuating mechanism, actuating mechanism drives full screen for the box subassembly goes up and down and overturns, actuating mechanism includes:

one end of each active rod is pivotally arranged on the box body assembly, the other end of each active rod is pivotally arranged on the full screen, the number of the active rods is two, and the two active rods are respectively adjacent to the left side and the right side of the full screen;

one end of the driven rod is hinged to the box body assembly, and the other end of the driven rod is hinged to the full-face screen;

the driving device is hinged with the driving rod and drives the driving rod to rotate so as to drive the overall screen to lift and turn;

the two ends of the synchronous rod are respectively connected with the two driving rods so as to enable the two driving rods to synchronously rotate;

the buffer cylinder is pivotally arranged on the box body assembly, and the driving device and the buffer cylinder are respectively hinged to the two driving rods.

2. The range hood of claim 1, wherein the active lever comprises:

one end of the straight line section is pivotally arranged on the box body assembly, and the driving device is hinged with the other end of the straight line section;

one end of the first arc segment is connected to the other end of the straight line segment, and the opening of the first arc segment faces the straight line segment;

and one end of the second arc segment is connected to the other end of the first arc segment, the other end of the second arc segment is pivotally arranged on the full-face screen, and the opening of the first arc segment faces back to the straight line segment.

3. The range hood of claim 2, wherein the housing assembly has a deflector, the fume inlet is disposed on the deflector, the one end of the linear section is pivotally mounted to the deflector, and the one end of the driven rod is hingedly coupled to the deflector.

4. The range hood of claim 2 wherein the full panel has a connection plate to which the other end of the second arcuate segment is pivotally mounted, the other end of the driven lever being hingedly connected to the connection plate.

5. The range hood of claim 4, wherein the connection plate comprises:

the connecting straight plate is connected to the inner side surface of the full screen;

the first bending part extends from the edge of the connecting straight plate positioned at the outer side along the direction towards the box body assembly, and the other end of the second arc line segment is pivotally arranged on the first bending part;

the second bending part extends from the edge of the connecting straight plate positioned on the inner side in the direction towards the box body assembly, and the other end of the driven rod is hinged to the second bending part;

the joint of the second arc line segment and the first bending part is higher than the joint of the driven rod and the second bending part.

6. The range hood of claim 3 wherein the deflector has a bracket, the one end of the straight section is pivotally mounted to the bracket, and the one end of the driven lever is hingedly connected to the bracket.

7. The range hood of claim 6, wherein the bracket has two connecting lugs oppositely disposed, and the one end of the driven rod is hinged between the two connecting lugs.

8. The range hood of claim 7, wherein a portion of the bracket between the two connecting lugs is configured with a first assembly hole penetrating through the bracket, the flow guide plate has a second assembly hole corresponding to the first assembly hole, and the second assembly hole penetrates through the flow guide plate so that the driven rod sequentially passes through the second assembly hole and the first assembly hole to be matched with the two connecting lugs.

9. The range hood of claim 8, wherein the deflector has a third assembly hole passing through the deflector, and the active rod is hinged to the driving device through the third assembly hole.

10. The range hood of claim 6, wherein the deflector has a rotatable support, and the drive device is hingedly connected to the rotatable support.

11. The range hood of claim 10, wherein during extension of the drive assembly, the drive assembly rotates relative to the rotatable mount in a direction away from the bracket;

during the shortening process of the driving device, the driving device rotates relative to the rotating support in the direction towards the support.